JP6621295B2 - Storage device - Google Patents

Description

  The present invention relates to a storage device that stores gas or the like.

  Conventionally, for example, the seismic isolation structure of a structure shown in Patent Document 1 is an underground structure disposed on a pile driven into the ground as a seismic isolation structure of a structure such as a liquid storage tank, a gas holder, or a cooling tower. It is formed by a base plate, a plurality of seismic isolation devices arranged on the underground base plate, and a base plate on which a structure is mounted on the base isolation device.

  Conventionally, for example, the base-isolated structure of the floating roof type storage tank floating roof shown in Patent Document 2 is the circumferential direction of the floating roof due to the liquid level vibration generated in the floating roof type storage tank by the action of vibration such as an earthquake. And to reduce the bending moment in the radial direction. This floating roof seismic isolation structure has a tank body with an opening at the top, and a floating roof that floats on the liquid surface of the stored liquid and that is slidably in contact with the inner peripheral surface of the side plate so that it can be raised and lowered. With respect to the floating roof type storage tank, a pontoon is intermittently formed on the floating roof, and a seismic isolation device made of a flexible elastic material such as rubber is disposed between adjacent pontoon sections.

Japanese Patent Laid-Open No. 11-13068 Japanese Patent Laid-Open No. 2005-289483

  A gas holder as a storage device comprising a cylindrical storage body and a piston that seals the inner surface of the storage body and that can be raised and lowered with respect to the storage body. Since the gas is compressed and sealed, the piston weight is large. Therefore, there is a particular concern about damage to the tank due to the piston inertia force during the earthquake acting on the tank. Since the height of the piston changes depending on the amount of gas inside the storage unit main body, it is necessary to carry out reinforcement work at the entire height of the storage unit main body, and the scale becomes large. On the other hand, in recent years, the possibility of larger earthquakes has been pointed out, and the level of ground motion that should be considered in design is increasing. Therefore, the level of earthquake resistance required for the structure of the gas holder is also increased, and a larger-scale reinforcement structure is required than the current earthquake resistance reinforcement measures.

  Therefore, instead of seismic reinforcement measures, for example, as shown in Patent Literature 1 and Patent Literature 2, there is a countermeasure against vibration such as an earthquake by a seismic isolation structure that blocks earthquake input energy. However, since the seismic isolation structure shown in Patent Document 1 softly supports the entire target structure to cut off the vibration input, it is necessary to change the structure of the bottom of the storage unit body and the foundation structure, which requires extensive construction. It becomes. Further, in the seismic isolation structure shown in Patent Document 2, the storage object is a liquid, and the pontoon on which the seismic isolation device is arranged is a light ship that floats on the liquid surface. In the gas holder which is gas, since the piston weight is large, it is difficult to dispose the piston intermittently and arrange the seismic isolation device.

  The present invention solves the above-described problems, and an object of the present invention is to provide a storage device that can take a vibration countermeasure on a piston that can be moved up and down inside a storage unit body.

  In order to achieve the above-described object, a storage device according to a first aspect of the present invention includes a cylindrical storage unit main body and a piston that seals an inner surface of the storage unit main body and is movable up and down with respect to the storage unit main body. The piston is disposed inside the storage unit body, a guide frame that supports the end of the roof part facing the cylindrical inner peripheral surface of the storage unit body, and It has a fixed part fixed to the storage part body and a movable part fixed to the guide frame, and supports the guide frame movably in the cylindrical axial direction of the storage part body with respect to the storage part body. A linear motion portion, a first seal mechanism that seals between the guide frame and a fixed portion of the linear motion portion, and the roof portion with respect to the guide frame, the cylindrical axial direction of the storage portion main body And movably supported in a direction perpendicular to A restoring force mechanism for applying a restoring force between the serial guide frame and the roof section, and having a.

  According to this storage device, when rolling occurs during an earthquake, the roof of the piston can move in a direction perpendicular to the cylindrical axial direction of the storage unit body with respect to the guide frame. Reduces the transmission of vibration to the roof. Moreover, according to the storage device, the restoring force is applied between the guide frame and the roof portion by the restoring force mechanism, so that the roof portion is returned to the position before the movement that rolls. As a result, it is possible to take vibration countermeasures on the piston that can be moved up and down inside the storage body.

  The storage device according to a second aspect is characterized in that, in the first aspect, the restoring force mechanism includes a damping element that applies a damping force between the guide frame and the roof portion.

  According to this storage device, excessive movement of the roof portion can be suppressed by applying a damping force between the guide frame and the roof portion by the damping element of the restoring force mechanism.

  The storage device according to a third aspect is characterized in that, in the second aspect, the restoring force mechanism includes a damping rubber bearing.

  According to this storage device, the restoring force mechanism can be realized by the damping rubber support.

  According to a fourth aspect of the present invention, there is provided the storage device according to the second aspect, wherein the restoring force mechanism includes a restoring spring and a damper.

  According to this storage device, the restoring force mechanism can be realized by the restoring spring and the damper.

  The storage device according to a fifth aspect of the present invention is characterized in that, in the second aspect, the restoring force mechanism includes a spherical pendulum support.

  According to this storage device, the restoring force mechanism can be realized by the spherical pendulum support.

  According to a sixth aspect of the present invention, in the second aspect of the invention, the restoring force mechanism includes a liquid damper.

  According to this storage device, the restoring force mechanism can be realized by the liquid damper.

  The storage device according to a seventh aspect is the storage device according to the third or fifth aspect, wherein the restoring force mechanism is a surface facing the vertically lower side of the guide frame and a surface facing the vertical upper side of the roof portion. It is characterized by being provided between.

  In the storage device in which the piston rises due to the increase of the atmospheric pressure in the space below the roof portion, the roof portion rises with respect to the guide frame, and this rising load always acts on the restoring force mechanism. Therefore, in order for the restoring force mechanism to always function, the restoring force mechanism is preferably provided between the upper surface of the piston foot ring in the roof portion and the upper support portion of the support portion in the guide frame.

  The storage device according to an eighth aspect of the present invention is characterized in that, in the fourth aspect, the restoring force mechanism is disposed on surfaces of the guide frame and the roof portion that face each other along the vertical direction. To do.

  According to this storage device, since the roof portion is supported so as to be movable in a direction orthogonal to the cylindrical axial direction of the storage portion main body with respect to the guide frame, the restoring force mechanism including the restoring spring and the damper is A restoring force and a damping force are always generated by being arranged on the surfaces of the guide frame and the roof portion along the mutually facing vertical directions.

  The storage device according to a ninth aspect of the present invention is the storage device according to any one of the first to eighth aspects, wherein the roof portion includes a piston foot ring disposed at an end portion on the guide frame side. .

  According to this storage device, the piston foot ring is disposed at the end on the guide frame side in the roof portion, and by providing a restoring force mechanism to the piston foot ring, it is possible to easily take measures against vibration on the piston. it can.

  According to a tenth aspect of the present invention, in the eighth aspect, the piston foot ring includes balanced concrete.

  According to this storage device, by including the balance concrete in the piston foot ring, it is possible to perform both the function of adjusting the weight of the piston by the balance concrete and the vibration countermeasure of the piston provided with the restoring force mechanism in the piston foot ring. it can.

  The storage device according to an eleventh aspect of the present invention is the storage apparatus according to any one of the first to tenth aspects, further comprising a second seal mechanism that seals between the guide frame and the roof portion.

  In the general storage device, the roof portion is fixed to the guide frame, and the upper and lower spaces of the piston can be sealed by the first seal mechanism. However, the storage device according to the present embodiment allows the roof portion to move with respect to the guide frame. Since it is provided, the sealing performance of the upper and lower spaces of the piston can be ensured by having the second sealing mechanism that seals between the guide frame and the roof portion.

  The storage device according to a twelfth aspect of the present invention is characterized in that, in any one of the first to eleventh aspects, the storage section main body stores gas.

  When gas is stored in the storage unit body, the piston is moved up and down by the pressure of the gas. By applying the storage device of the present invention to the piston of the storage unit body having such a configuration, measures against vibrations of the piston are taken. It can be suitably applied.

  ADVANTAGE OF THE INVENTION According to this invention, a vibration countermeasure can be taken to the piston provided so that raising / lowering is possible inside a storage part main body.

FIG. 1 is a side view of a storage device according to Embodiment 1 of the present invention. FIG. 2 is a schematic cross-sectional view of the storage device according to Embodiment 1 of the present invention cut in a direction orthogonal to the vertical direction. Drawing 3 is a mimetic diagram of the longitudinal section cut by the center of the piston of the storage device concerning Embodiment 1 of the present invention. FIG. 4 is an enlarged vertical cross-sectional view of the storage device according to the first embodiment of the present invention. FIG. 5 is an enlarged longitudinal sectional view of a storage device according to Embodiment 2 of the present invention. FIG. 6 is an enlarged vertical cross-sectional view of a storage device according to Embodiment 3 of the present invention. FIG. 7 is an enlarged vertical cross-sectional view of a storage device according to Embodiment 4 of the present invention.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

[Embodiment 1]
FIG. 1 is a side view of the storage device according to the present embodiment. FIG. 2 is a schematic cross-sectional view of the storage device according to the present embodiment cut in a direction orthogonal to the vertical direction. Drawing 3 is a mimetic diagram of the longitudinal section cut at the center of the piston of the storage device concerning this embodiment. FIG. 4 is an enlarged vertical cross-sectional view of the storage device according to the present embodiment.

  The storage facility of the present embodiment stores gas. As shown in FIGS. 1 to 3, the storage device includes a storage unit body 1 having an outer shape that is cylindrical. The storage unit body 1 has a cylindrical axial direction standing on a foundation 4 (see FIG. 3) along a vertical direction (vertical direction), a side plate 2 constituting the outer peripheral wall thereof, and a top portion of the side plate 2. And a roof 3 provided on the roof. The side plate 2 is reinforced by the corridor 5 and the base pillar 6.

  The corridor 5 is attached to the outer wall surface of the side plate 2 as shown in FIGS. The corridor 5 is provided in an annular shape along the cylindrical circumferential direction of the side plate 2, and a plurality of corridors 5 are provided in the vertical direction of the side plate 2. Moreover, the base pillar 6 is attached to the outer peripheral surface of the side plate 2, as shown in FIG. The base pillar 6 is made of, for example, H steel and has one of the flanges in contact with the outer peripheral surface of the side plate 2, along the vertical direction (vertical direction) that is the cylindrical axial direction of the storage unit body 1. A plurality of the side plates 2 are arranged in the circumferential direction of the side plate 2. Although not clearly shown in the figure, the base pillar 6 is provided to protrude inside the side plate 2 at, for example, at least two opposing positions with respect to the center of the storage body 1, and this base pillar 6 is used. An anti-rotation device for preventing the piston from rotating in the circumferential direction is arranged.

  The storage unit main body 1 is provided with a gas inlet / outlet pipe 7 in the lower part, and a gas (for example, gas) G is supplied or discharged into the storage device via the gas inlet / outlet pipe 7.

  As shown in FIG. 3, the storage device has a piston 8 inside. The piston 8 divides the interior of the storage unit body 1 up and down, and smoothly moves up and down along the inner surface of the side plate 2 in accordance with the inflow and outflow of the gas G from the gas inlet / outlet pipe 7 to store the gas G. Or discharge. With this structure, the storage device can be a variable capacity tank that can change the lower space defined by the piston 8.

  As shown in FIGS. 3 and 4, the piston 8 includes a roof portion 8A, a guide frame 8B, a linear motion portion 8C, a first seal mechanism 8D, a restoring force mechanism 8E, a second seal mechanism 8F, Have

  The roof portion 8A has a roof 8AA and a piston foot ring 8AB. The roof 8AA is formed in a dome shape in which a deck is stretched on a frame combined with beams in a circumferential direction and a radial direction (not shown) and protrudes upward. The piston foot ring 8AB is provided in the circumferential direction along the outer edge of the roof 8AA and is formed in a ring shape. In the piston foot ring 8AB, balance concrete is filled in a box-shaped interior in order to adjust the weight of the piston 8.

  The guide frame 8B supports the roof portion 8A. Specifically, the guide frame 8B supports a piston foot ring 8AB configured as an end portion facing the inner peripheral surface of the side plate 2 in the storage portion main body 1 in the roof portion 8A. Is. The guide frame 8B has a support portion 8BA and a guide portion 8BB.

  As shown in FIG. 4, the support portion 8BA includes an upper support portion 8BAa arranged to face the upper surface 8ABa of the piston foot ring 8AB and a lower support portion 8BAb arranged to face the lower surface 8ABb of the piston foot ring 8AB. And an outer peripheral support portion 8BAc disposed facing the outer peripheral surface 8ABc facing the inner peripheral surface of the side plate 2 in the piston foot ring 8AB. As shown in FIG. 2, the piston foot ring 8AB as a whole It is provided in the circumferential direction along the circumferential direction of the storage unit body 1. The upper support portion 8BAa and the lower support portion 8BAb may be formed as plates that cover the upper surface 8ABa and the lower surface 8ABb of the piston foot ring 8AB, but have portions that face the upper surface 8ABa and the lower surface 8ABb of the piston foot ring 8AB. It may be formed as a frame. The upper support portion 8BAa and the lower support portion 8BAb are connected to the upper surface 8ABa and the lower surface 8ABb of the piston foot ring 8AB. On the other hand, the outer peripheral support portion 8BAc is formed as a plate that covers the outer peripheral surface 8ABc of the piston foot ring 8AB. Accordingly, the support portion 8BA is provided so that the outer peripheral support portion 8BAc partitions the piston foot ring 8AB and the side plate 2 from each other.

  The guide portion 8BB extends upward from the upper support portion 8BAa of the support portion 8BA, and a plurality of guide portions 8BB are provided in the circumferential direction of the support portion 8BA. Further, the guide portion 8BB extends downward from the lower support portion 8BAb of the support portion 8BA, and a plurality of guide portions 8BB are provided in the circumferential direction of the support portion 8BA, and are provided along the circumferential direction of the storage portion main body 1. The upper and lower guide portions 8BB above and below the support portion 8BA have a vertically symmetrical shape, and are provided at the same position in the vertical direction in the circumferential direction of the support portion 8BA so as to sandwich the support portion 8BA vertically. The guide portion 8BB includes a vertical member 8BBa provided so as to extend in the vertical direction so as to face the inner peripheral surface of the side plate 2, and a reinforcing member 8BBb that supports the vertical member 8BBa with respect to the support portion 8BA. , And is configured.

  8 C of linear motion parts support the guide frame 8B with respect to the storage part main body 1 so that a movement to the axial direction of the cylinder of the storage part main body 1 is possible. The linear motion portion 8C includes a fixed portion 8Ca and a movable portion 8Cb.

  The fixing portion 8Ca is fixed to the storage portion main body 1. The fixing portion 8Ca is provided so as to extend along the cylindrical axial direction of the storage body 1 and corresponds to the side plate 2 of the storage body 1 in the present embodiment. Further, the storage unit main body 1 is reinforced by a base pillar 6 extending in the cylindrical axial direction of the storage part main body 1, and the fixing portion 8Ca corresponds to the base pillar 6. The fixing portion 8Ca may be a member that is provided along the cylindrical axial direction of the storage unit main body 1 separately from the side plate 2 and the base column 6 and fixed to the inner peripheral surface of the storage unit main body 1. .

  The movable portion 8Cb is fixed to the guide frame 8B. The movable portion 8Cb is configured as a guide roller fixed to the support portion 8BA and the guide portion 8BB of the guide frame 8B. Specifically, the guide roller which is the movable portion 8Cb is supported so as to be rotatable around a shaft orthogonal to the cylindrical portion of the storage portion main body 1 with respect to the support portion 8BA and the guide portion 8BB of the guide frame 8B. . A plurality (two in this embodiment) of guide rollers as the movable portion 8Cb are provided in the upper and lower guide portions 8BB. And since the guide frame 8B is provided along the circumferential direction of the storage part main body 1, the guide roller which is movable part 8Cb of the base pillar 6 shown in FIG. 2 which is fixing | fixed part 8Ca in each location of the circumferential direction. The guide frame 8B moves in a direction that abuts against the side plate 2 at the position (or another member provided along the cylindrical axial direction of the storage unit body 1) and intersects with each other in the axial direction, and in a direction inclined in the axial direction. The guide frame 8B is configured to be movable up and down along the axial direction along the fixed portion 8Ca. For this reason, the roof portion 8A supported by the guide frame 8B is configured to be movable up and down along the axial direction together with the guide frame 8B.

  The first seal mechanism 8D has an upper seal rubber 8D1 and a lower seal rubber 8D2 which are elastic sealing members having elasticity. A wooden spacer 8D3 is disposed between the upper seal rubber 8D1 and the lower seal rubber 8D2. The spacer 8D3 is integrally fixed to the holding metal fitting 8D4. The vertical dimension of the upper seal rubber 8D1, the lower seal rubber 8D2, and the spacer 8D3 is set to 50 mm, for example. The upper seal rubber 8D1 and the lower seal rubber 8D2 are obtained by laminating a synthetic rubber, for example, nitrile rubber (NBR: Nitrile Butadiene Rubber) and a fiber layer.

  The holding metal fitting 8D4 to which the spacer 8D3 is fixed is connected to a support frame 8D6 projecting radially outward from the outer peripheral portion of the outer peripheral support portion 8BAc in the guide frame 8B via a suspension member 8D5. A plurality of suspension members 8D5 are arranged at a predetermined interval in the circumferential direction of the storage unit main body 1. The holding metal fitting 8D4 is connected to a counterweight portion 8D20 disposed on the upper surface of the upper support portion 8BAa in the guide frame 8B via a link mechanism 8D10.

  The link mechanism 8D10 includes a frame 8D11, a triangular frame 8D12, and a bracket 8D13. One end of the frame 8D11 is connected to the holding metal fitting 8D14 via the support shaft 8D14a, and the other end is connected to the triangular frame 8D12 and arranged horizontally. The triangular frame 8D12 is formed in a triangular shape when viewed from the side, and has a first corner portion facing downward, a second corner portion and a third corner portion facing opposite horizontal directions. The other end of the frame 8D11 is connected to the first corner of the triangular frame 8D12 via a support shaft 8D14b. In addition, the triangular frame 8D12 has a bracket 8D13 connected to the second corner. One end of the bracket 8D13 is attached to the outer peripheral portion of the outer peripheral support portion 8BAc in the guide frame 8B, and the other end is connected to the support shaft 8D14c at the second corner of the triangular frame 8D12. Further, the triangular frame 8D12 has a counterweight portion 8D20 connected to the third corner portion.

  A bracket 8D21 is attached to the counterweight portion 8D20 on the upper surface of the upper support portion 8BAa in the guide frame 8B. An arm 8D22 is connected to the bracket 8D21 via a support shaft 8D23 so as to be swingable in the vertical direction. The tip of the arm 8D22 extends radially outward from the outer peripheral support portion 8BAc. A counterweight 8D24 is attached to the rear end of the arm 8D22. The arm 8D22 is configured such that the distance from the support shaft 8D23 to the counterweight 8D24 is longer than the distance from the support shaft 8D23 to the tip. The tip of the arm 8D22 of the counterweight portion 8D20 and the third corner of the triangular frame 8D12 of the link mechanism 8D10 are connected to each other by a wire 8D25.

  The wire 8D25 receives a tensile force upward due to the weight of the counterweight 8D24. When the wire 8D25 is pulled upward, the frame 8D11 receives a pressing force that presses the holding fitting 8D14 toward the side plate 2 by the triangular frame 8D12. The upper seal rubber 8D1 and the lower seal rubber 8D2 are pressed against the side plate 2 by the pressing force transmitted through the holding metal fitting 8D4, and the upper seal rubber 8D1 and the lower seal rubber 8D2 are in close contact with the side plate 2.

  A plurality of counterweight portions 8D20 are arranged at predetermined intervals in the circumferential direction of the piston 8. Thereby, the pressing force which uniformly presses against the side plate 2 over the entire circumferential direction of the piston 8 can be applied. As a result, the followability to the deformation of the side plate 2 is improved by the pressing force of the counterweight 8D24, and sufficient sealing performance can be maintained against the temporary local deformation of the side plate 2.

  Further, the first seal mechanism 8D is a shielding plate that extends in the radially outward direction of the outer peripheral support portion 8BAc on the outer peripheral surface of the outer peripheral support portion 8BAc in the guide frame 8B and is disposed along the outer periphery of the outer peripheral support portion 8BAc. 8D31 is attached. The shielding plate 8D31 and the holding fitting 8D4 are connected by the canvas 8D32, and the shielding plate 8D31 and the canvas 8D32 block the lower side and the lower side. A storage groove for the seal oil Q in which the upper seal rubber 8D1 and the lower seal rubber 8D2 are disposed is formed in a region surrounded by the side plate 2, the outer peripheral support portion 8BAc, the shielding plate 8D31, and the canvas 8D32. On the other hand, the gas storage area | region where the gas G is stored below is formed.

  The upper seal rubber 8D1 and the lower seal rubber 8D2 are in close contact with the inner surface of the side plate 2, slide along the vertical movement of the piston 8, and seal the gas G stored below the piston 8. Further, a storage groove for the seal oil Q is formed above the upper seal rubber 8D1 and the lower seal rubber 8D2, the seal oil Q is stored therein, and the upper seal rubber 8D1 and the lower seal rubber 8D2 are pressed against the side plate 2 by the static pressure of the seal oil Q. I have to.

  The seal oil Q stored in the storage groove flows down along the inner surface of the side plate 2, accumulates in the bottom oil groove 45 shown in FIG. 3, and is installed on the outer side of the storage unit main body 1 shown in FIGS. 1 and 3. It is sent to the seal oil circulation device 46. The seal oil circulation device 46 separates the water mixed in the seal oil Q, and then seals the seal oil into the upper reserve oil tank 48 via the seal oil rising pipe 47 by a seal oil circulation pump (not shown). Push Q up. The seal oil Q flows from the reserve oil tank 48 to the inner surface of the side plate 2 through a slit (not shown), enters the storage groove of the first seal mechanism 8D again, and is used as the seal oil Q.

  As shown in FIG. 4, the restoring force mechanism 8 </ b> E includes a moving mechanism unit 8 </ b> EA and a restoring force mechanism unit 8 </ b> EB.

  The moving mechanism portion 8EA is provided between the roof portion 8A and the guide frame 8B. Specifically, the movement mechanism portion 8EA is provided between the lower surface 8ABb of the piston foot ring 8AB in the roof portion 8A and the lower support portion 8BAb of the support portion 8BA in the guide frame 8B. The moving mechanism portion 8EA is capable of relatively moving the lower surface 8ABb of the piston foot ring 8AB and the lower support portion 8BAb of the support portion 8BA in the direction intersecting the axial direction of the storage unit body 1 and in the horizontal direction. Connecting. For example, the moving mechanism 8EA may contact the plane provided on the lower surface 8ABb of the piston foot ring 8AB with the plane provided on the lower support 8BAb of the support 8BA with relative slip. And the other plane is brought into contact with the plane with a relative slip by a point or a line. Thus, the roof portion 8A is provided on the guide frame 8B via the piston foot ring 8AB so as to be movable in the horizontal direction, and the movement of the storage portion main body 1 in the radial direction is allowed. As described above, the moving mechanism 8EA supports the roof 8A with respect to the guide frame 8B so as to be movable in a direction perpendicular to the cylindrical axial direction of the storage unit body 1. Moreover, since the piston foot ring 8AB is connected to the guide frame 8B, the roof portion 8A is provided so as to be movable up and down with respect to the storage unit body 1 together with the guide frame 8B.

  The restoring force mechanism portion 8EB is provided between the roof portion 8A and the guide frame 8B. Specifically, the restoring force mechanism portion 8EB is provided between the upper surface 8ABa of the piston foot ring 8AB in the roof portion 8A and the upper support portion 8BAa of the support portion 8BA in the guide frame 8B. The restoring force mechanism part 8EB returns the movement of the roof part 8A in the horizontal direction by the moving mechanism part 8EA to the original stationary position. The restoring force mechanism portion 8EB includes a damping element that applies a damping force between the guide frame 8B and the roof portion 8A. In the present embodiment, the damping element includes a damping rubber bearing that absorbs and attenuates the energy of shaking (moving) of the roof portion 8A in the horizontal direction by the moving mechanism portion 8EA by the rubber material. As shown in FIG. 4, the damping rubber bearing is configured such that the connection flange 8EBb provided at the upper and lower ends of the damping rubber 8EBa is supported by the upper surface 8ABa of the piston foot ring 8AB in the roof portion 8A and the support portion 8BA in the guide frame 8B. And fixed to each of the sections 8BAa.

  As described above, the restoring force mechanism 8E is disposed between the roof portion 8A and the guide frame 8B, and the roof portion 8A is disposed in the direction perpendicular to the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B. A movable force is supported, and a restoring force is applied between the roof portion 8A and the guide frame 8B.

  The second seal mechanism 8F seals between the guide frame 8B and the roof portion 8A. The second seal mechanism 8F includes a waterproof seat 8Fa formed in a ring shape continuously along the outer peripheral surface 8ABc of the piston foot ring 8AB in the roof portion 8A and the outer peripheral support portion 8BAc in the guide frame 8B, and the seat 8Fa. These two edges are respectively constituted by an outer peripheral surface 8ABc of the piston foot ring 8AB and a fixing portion 8Fb that continuously fixes along the outer peripheral support portion 8BAc of the guide frame 8B. In addition, the second seal mechanism 8F is configured to maintain a seal between the guide frame 8B and the roof portion 8A with respect to the movement of the roof portion 8A in the horizontal direction. The sheet 8Fa is bent and arranged with a margin than the moving range.

  The piston 8 configured in this manner is provided such that the guide frame 8B can be moved up and down along the axial direction with respect to the storage unit body 1 with the roof portion 8A, and the first seal mechanism 8D is moved up and down when the guide frame 8B is raised and lowered. Seals between the guide frame 8B and the storage unit main body 1 (the fixed portion 8Ca of the linear motion portion 8C). Further, the piston 8 is provided so that the roof portion 8A can move in the horizontal direction with respect to the guide frame 8B. When the roof portion 8A moves, the second seal mechanism 8F seals between the guide frame 8B and the roof portion 8A. To do. That is, the piston 8 is provided so as to be movable up and down inside the storage unit body 1 in a state where the upper and lower spaces of the storage unit body 1 with the roof 8A as a boundary are sealed by the first seal mechanism 8D and the second seal mechanism 8F. . For this reason, the gas G is caused to flow into the space below the roof portion 8A in the storage body 1 and the air pressure in the space below the roof portion 8A rises, so that the piston 8 rises. The gas G flows out from the space below the roof portion 8A, and the pressure in the space below the roof portion 8A decreases, so that the piston 8 descends.

  In the storage device of the present embodiment, the piston 8 moves the roof portion 8A with respect to the guide frame 8B in a direction (horizontal direction) perpendicular to the cylindrical axial direction of the storage portion main body 1 by the moving mechanism portion 8EA. It has a restoring force mechanism 8E that supports it and allows a restoring force to act between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB.

  According to this storage device, when a roll is applied during an earthquake, the roof 8A of the piston 8 is moved in the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B by the moving mechanism 8EA of the restoring force mechanism 8E. It is possible to move in the direction orthogonal to the side, and the situation where the vibration of rolling is transmitted to the roof portion 8A is reduced. Moreover, according to this storage device, the restoring force is applied between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB of the restoring force mechanism 8E, so that the roof portion 8A rolls before moving. Return to position. As a result, it is possible to take measures against vibrations in the piston 8 that can be moved up and down inside the storage unit body 1.

  In the storage device of this embodiment, it is preferable that the restoring force mechanism 8E includes a damping element that applies a damping force between the guide frame 8B and the roof portion 8A.

  According to this storage device, excessive movement of the roof portion 8A can be suppressed by applying a damping force between the guide frame 8B and the roof portion 8A by the damping element of the restoring force mechanism 8E.

  In the storage device of the present embodiment, the restoring force mechanism 8E preferably includes a damping rubber bearing.

  According to this storage device, the restoring force mechanism 8E can be realized by the damping rubber support.

  Further, in the storage device of the present embodiment, the restoring force mechanism 8E faces the vertically downward surface of the guide frame 8B (upper support portion 8BAa of the support portion 8BA) and the upper vertical direction of the roof portion 8A. It is preferable to be provided between the surface (the upper surface 8ABa of the piston foot ring 8AB).

  In the storage device of the present embodiment, the piston 8 rises as the atmospheric pressure in the lower space of the roof portion 8A rises. Therefore, the roof portion 8A rises with respect to the guide frame 8B. Acts on the restoring force mechanism 8E. Therefore, when the restoring force mechanism 8E always functions, the restoring force mechanism portion 8EB of the restoring force mechanism 8E includes the upper surface 8ABa of the piston foot ring 8AB in the roof portion 8A and the upper support portion 8BAa of the support portion 8BA in the guide frame 8B. It is preferable that it is provided between. Further, the lower surface 8ABb of the piston foot ring 8AB in the roof portion 8A and the lower support portion 8BAb of the support portion 8BA in the guide frame 8B are separated from each other as the roof portion 8A rises with respect to the guide frame 8B. Therefore, the moving mechanism 8EA of the restoring force mechanism 8E may be configured to allow this action or may not be provided.

  Moreover, in the storage device of the present embodiment, the roof portion 8A preferably has a piston foot ring 8AB disposed at an end portion on the guide frame 8B side.

  According to this storage device, the piston foot ring 8AB is disposed at the end of the roof 8A on the guide frame 8B side, and the restoring force mechanism 8E is provided between the piston foot ring 8AB and the guide frame 8B. Thus, vibration countermeasures can be easily applied to the piston 8.

  Moreover, in the storage apparatus of this embodiment, it is preferable that piston foot ring 8AB contains balance concrete.

  According to this storage device, the balance weight is included in the piston foot ring 8AB so that the function of adjusting the weight of the piston 8 by the balance concrete and the restoring force mechanism 8E is provided between the piston foot ring 8AB and the guide frame 8B. The vibration countermeasure of the piston 8 can be taken together.

  Moreover, in the storage apparatus of this embodiment, it is preferable to have the 2nd sealing mechanism 8F which seals between the guide frame 8B and the roof part 8A.

  In the general storage device, the roof portion 8A is fixed to the guide frame 8B, and the upper and lower spaces of the piston 8 can be sealed by the first seal mechanism 8D. However, in the storage device of the present embodiment, the roof portion 8A has the guide frame 8B. Since the second seal mechanism 8F that seals between the guide frame 8B and the roof portion 8A is provided, the sealability of the upper and lower spaces of the piston 8 can be ensured.

  Moreover, in the storage apparatus of this embodiment, it is preferable that the storage part main body 1 stores the gas G. FIG.

  When the gas G is stored in the storage unit main body 1, the piston 8 is moved up and down by the pressure of the gas G, and the storage device of this embodiment is applied to the piston 8 of the storage unit main body 1 having such a configuration. Thus, it is possible to suitably take measures against vibration of the piston 8.

[Embodiment 2]
FIG. 5 is an enlarged vertical cross-sectional view of the storage device according to the present embodiment.

  The present embodiment differs from the first embodiment described above in the restoring force mechanism 8E. Therefore, in this embodiment, the same code | symbol is attached | subjected to the structure equivalent to Embodiment 1 mentioned above, and the description is abbreviate | omitted.

  As shown in FIG. 5, the restoring force mechanism 8 </ b> E includes a moving mechanism unit 8 </ b> EA and a restoring force mechanism unit 8 </ b> EB.

  The moving mechanism portion 8EA is provided between the roof portion 8A and the guide frame 8B. Specifically, the moving mechanism 8EA is provided between the lower surface 8ABb of the piston foot ring 8AB in the roof 8A and the lower support 8BAb of the support 8BA in the guide frame 8B. The moving mechanism portion 8EA is capable of relatively moving the lower surface 8ABb of the piston foot ring 8AB and the lower support portion 8BAb of the support portion 8BA in the direction intersecting the axial direction of the storage body 1 and in the horizontal direction. Connecting. For example, the moving mechanism 8EA may contact the plane provided on the lower surface 8ABb of the piston foot ring 8AB and the plane provided on the lower support 8BAb of the support 8BA with relative slip. And the other surface is contacted with a relative slip by a point or a line. Thus, the roof portion 8A is provided on the guide frame 8B via the piston foot ring 8AB so as to be movable in the horizontal direction, and the movement of the storage portion main body 1 in the radial direction is allowed. As described above, the moving mechanism 8EA supports the roof 8A so as to be movable in the direction orthogonal to the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B. Moreover, since the piston foot ring 8AB is connected to the guide frame 8B, the roof portion 8A is provided so as to be movable up and down with respect to the storage unit body 1 together with the guide frame 8B.

  The restoring force mechanism portion 8EB is provided between the roof portion 8A and the guide frame 8B. Specifically, the restoring force mechanism portion 8EB is provided between the upper surface 8ABa of the piston foot ring 8AB in the roof portion 8A and the upper support portion 8BAa of the support portion 8BA in the guide frame 8B. The restoring force mechanism part 8EB returns the movement of the roof part 8A in the horizontal direction by the moving mechanism part 8EA to the original stationary position. The restoring force mechanism portion 8EB includes a damping element that applies a damping force between the guide frame 8B and the roof portion 8A. In the present embodiment, the damping element includes a restoring spring 8EBc and a damper 8EBd. As shown in FIG. 5, the restoring spring 8EBc includes a surface along the vertical direction of the fixed piece 8ABa provided to protrude upward from the upper surface 8ABa of the piston foot ring 8AB in the roof portion 8A, and a support portion 8BA in the guide frame 8B. Each end is attached to a surface along the vertical direction of the outer peripheral support portion 8BAc and extends in the horizontal direction. The restoring spring 8EBc returns the movement of the roof 8A in the horizontal direction by the moving mechanism 8EA to the original stationary position. The damper 8EBd is, for example, an oil damper, and similarly to the restoring spring 8EBc, a surface along the vertical direction of the fixed piece 8ABaa in the roof portion 8A and a surface along the vertical direction of the outer peripheral support portion 8BAc in the guide frame 8B. In addition, each end is attached so as to be swingable through a shaft extending in the vertical direction, and provided extending in the horizontal direction. The damper 8EBd absorbs and attenuates the energy of horizontal movement (movement) of the roof portion 8A by the moving mechanism portion 8EA.

  As described above, the restoring force mechanism 8E is disposed between the roof portion 8A and the guide frame 8B, and the roof portion 8A is disposed in the direction perpendicular to the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B. A movable force is supported, and a restoring force is applied between the roof portion 8A and the guide frame 8B.

  The piston 8 configured in this manner is provided such that the guide frame 8B can be moved up and down along the axial direction with respect to the storage unit body 1 with the roof portion 8A, and the first seal mechanism 8D is moved up and down when the guide frame 8B is raised and lowered. Seals between the guide frame 8B and the storage unit main body 1 (the fixed portion 8Ca of the linear motion portion 8C). Further, the piston 8 is provided so that the roof portion 8A can move in the horizontal direction with respect to the guide frame 8B. When the roof portion 8A moves, the second seal mechanism 8F seals between the guide frame 8B and the roof portion 8A. To do. That is, the piston 8 is provided so as to be movable up and down inside the storage unit body 1 in a state where the upper and lower spaces of the storage unit body 1 with the roof 8A as a boundary are sealed by the first seal mechanism 8D and the second seal mechanism 8F. . For this reason, the gas G is caused to flow into the space below the roof portion 8A in the storage body 1 and the air pressure in the space below the roof portion 8A rises, so that the piston 8 rises. The gas G flows out from the space below the roof portion 8A, and the pressure in the space below the roof portion 8A decreases, so that the piston 8 descends.

  In the storage device of the present embodiment, the piston 8 moves the roof portion 8A with respect to the guide frame 8B in a direction (horizontal direction) perpendicular to the cylindrical axial direction of the storage portion main body 1 by the moving mechanism portion 8EA. It has a restoring force mechanism 8E that supports it and allows a restoring force to act between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB.

  According to this storage device, when a roll is applied during an earthquake, the roof 8A of the piston 8 is moved in the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B by the moving mechanism 8EA of the restoring force mechanism 8E. It is possible to move in the direction orthogonal to the side, and the situation where the vibration of rolling is transmitted to the roof portion 8A is reduced. Moreover, according to this storage device, the restoring force is applied between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB of the restoring force mechanism 8E, so that the roof portion 8A rolls before moving. Return to position. As a result, it is possible to take measures against vibrations in the piston 8 that can be moved up and down inside the storage unit body 1.

  In the storage device of this embodiment, it is preferable that the restoring force mechanism 8E includes a damping element that applies a damping force between the guide frame 8B and the roof portion 8A.

  According to this storage device, excessive movement of the roof portion 8A can be suppressed by applying a damping force between the guide frame 8B and the roof portion 8A by the damping element of the restoring force mechanism 8E.

  In the storage device of the present embodiment, the restoring force mechanism 8E preferably includes a restoring spring 8EBc and a damper 8EBd.

  According to this storage device, the restoring force mechanism 8E can be realized by the restoring spring 8EBc and the damper 8EBd.

  Moreover, in the storage apparatus of this embodiment, it is preferable that the restoring force mechanism 8E is arrange | positioned on the surface along the perpendicular direction where the guide frame 8B and the roof part 8A mutually oppose.

  According to this storage device, since the roof portion 8A is supported so as to be movable in a direction orthogonal to the cylindrical axial direction of the storage portion main body 1 with respect to the guide frame 8B, the restoration including the restoring spring 8EBc and the damper 8EBd. Since the force mechanism 8E is disposed on the surfaces of the guide frame 8B and the roof portion 8A that face each other in the vertical direction, the force mechanism 8E always generates a restoring force and a damping force.

  Moreover, in the storage device of the present embodiment, the roof portion 8A preferably has a piston foot ring 8AB disposed at an end portion on the guide frame 8B side.

  According to this storage device, the piston foot ring 8AB is disposed at the end of the roof 8A on the guide frame 8B side, and the restoring force mechanism 8E is provided between the piston foot ring 8AB and the guide frame 8B. Thus, vibration countermeasures can be easily applied to the piston 8.

  Moreover, in the storage apparatus of this embodiment, it is preferable that piston foot ring 8AB contains balance concrete.

  According to this storage device, the balance weight is included in the piston foot ring 8AB so that the function of adjusting the weight of the piston 8 by the balance concrete and the restoring force mechanism 8E is provided between the piston foot ring 8AB and the guide frame 8B. The vibration countermeasure of the piston 8 can be taken together.

  Moreover, in the storage apparatus of this embodiment, it is preferable to have the 2nd sealing mechanism 8F which seals between the guide frame 8B and the roof part 8A.

  In the general storage device, the roof portion 8A is fixed to the guide frame 8B, and the upper and lower spaces of the piston 8 can be sealed by the first seal mechanism 8D. However, in the storage device of the present embodiment, the roof portion 8A has the guide frame 8B. Since the second seal mechanism 8F that seals between the guide frame 8B and the roof portion 8A is provided, the sealability of the upper and lower spaces of the piston 8 can be ensured.

  Moreover, in the storage apparatus of this embodiment, it is preferable that the storage part main body 1 stores the gas G. FIG.

  When the gas G is stored in the storage unit main body 1, the piston 8 is moved up and down by the pressure of the gas G, and the storage device of this embodiment is applied to the piston 8 of the storage unit main body 1 having such a configuration. Thus, it is possible to suitably take measures against vibration of the piston 8.

[Embodiment 3]
FIG. 6 is an enlarged vertical cross-sectional view of the storage device according to the present embodiment.

  The present embodiment differs from the first embodiment described above in the restoring force mechanism 8E. Therefore, in this embodiment, the same code | symbol is attached | subjected to the structure equivalent to Embodiment 1 mentioned above, and the description is abbreviate | omitted.

  As shown in FIG. 6, the restoring force mechanism 8 </ b> E includes a moving mechanism unit 8 </ b> EA and a restoring force mechanism unit 8 </ b> EB.

  The moving mechanism portion 8EA is provided between the roof portion 8A and the guide frame 8B. Specifically, the movement mechanism portion 8EA is provided between the lower surface 8ABb of the piston foot ring 8AB in the roof portion 8A and the lower support portion 8BAb of the support portion 8BA in the guide frame 8B. The moving mechanism portion 8EA is capable of relatively moving the lower surface 8ABb of the piston foot ring 8AB and the lower support portion 8BAb of the support portion 8BA in the direction intersecting the axial direction of the storage unit body 1 and in the horizontal direction. Connecting. For example, the moving mechanism 8EA may contact the plane provided on the lower surface 8ABb of the piston foot ring 8AB with the plane provided on the lower support 8BAb of the support 8BA with relative slip. And the other plane is brought into contact with the plane with a relative slip by a point or a line. Thus, the roof portion 8A is provided on the guide frame 8B via the piston foot ring 8AB so as to be movable in the horizontal direction, and the movement of the storage portion main body 1 in the radial direction is allowed. As described above, the moving mechanism 8EA supports the roof 8A with respect to the guide frame 8B so as to be movable in a direction perpendicular to the cylindrical axial direction of the storage unit body 1. Moreover, since the piston foot ring 8AB is connected to the guide frame 8B, the roof portion 8A is provided so as to be movable up and down with respect to the storage unit body 1 together with the guide frame 8B.

  The restoring force mechanism portion 8EB is provided between the roof portion 8A and the guide frame 8B. Specifically, the restoring force mechanism portion 8EB is provided between the upper surface 8ABa of the piston foot ring 8AB in the roof portion 8A and the upper support portion 8BAa of the support portion 8BA in the guide frame 8B. The restoring force mechanism part 8EB returns the movement of the roof part 8A in the horizontal direction by the moving mechanism part 8EA to the original stationary position. The restoring force mechanism portion 8EB includes a damping element that applies a damping force between the guide frame 8B and the roof portion 8A. In this embodiment, the damping element includes a spherical pendulum support. As shown in FIG. 6, the spherical pendulum support is provided with a concave hemispherical concave surface portion 8EBe on the surface of the guide frame 8B facing the lower side in the vertical direction of the upper support portion 8BAa of the support portion 8BA. A convex hemispherical convex portion 8EBf is provided on the upper surface 8ABa of the piston foot ring 8AB, which is the surface facing the upper side in the vertical direction in the roof portion 8A. The concave surface portion 8EBe and the convex portion 8EBf are arranged in contact with each other. This spherical pendulum support returns the movement of the roof portion 8A in the horizontal direction by the moving mechanism portion 8EA to the original stationary position by contact with the concave surface portion 8EBe and the convex portion 8EBf, and the roof by the moving mechanism portion 8EA. Absorbs and attenuates the energy of shaking (movement) of the portion 8A in the horizontal direction.

  As described above, the restoring force mechanism 8E is disposed between the roof portion 8A and the guide frame 8B, and the roof portion 8A is disposed in the direction perpendicular to the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B. A movable force is supported, and a restoring force is applied between the roof portion 8A and the guide frame 8B.

  The piston 8 configured in this manner is provided such that the guide frame 8B can be moved up and down along the axial direction with respect to the storage unit body 1 with the roof portion 8A, and the first seal mechanism 8D is moved up and down when the guide frame 8B is raised and lowered. Seals between the guide frame 8B and the storage unit main body 1 (the fixed portion 8Ca of the linear motion portion 8C). Further, the piston 8 is provided so that the roof portion 8A can move in the horizontal direction with respect to the guide frame 8B. When the roof portion 8A moves, the second seal mechanism 8F seals between the guide frame 8B and the roof portion 8A. To do. That is, the piston 8 is provided so as to be movable up and down inside the storage unit body 1 in a state where the upper and lower spaces of the storage unit body 1 with the roof 8A as a boundary are sealed by the first seal mechanism 8D and the second seal mechanism 8F. . For this reason, the gas G is caused to flow into the space below the roof portion 8A in the storage body 1 and the air pressure in the space below the roof portion 8A rises, so that the piston 8 rises. The gas G flows out from the space below the roof portion 8A, and the pressure in the space below the roof portion 8A decreases, so that the piston 8 descends.

  In the storage device of the present embodiment, the piston 8 moves the roof portion 8A with respect to the guide frame 8B in a direction (horizontal direction) perpendicular to the cylindrical axial direction of the storage portion main body 1 by the moving mechanism portion 8EA. It has a restoring force mechanism 8E that supports it and allows a restoring force to act between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB.

  According to this storage device, when a roll is applied during an earthquake, the roof 8A of the piston 8 is moved in the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B by the moving mechanism 8EA of the restoring force mechanism 8E. It is possible to move in the direction orthogonal to the side, and the situation where the vibration of rolling is transmitted to the roof portion 8A is reduced. Moreover, according to this storage device, the restoring force is applied between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB of the restoring force mechanism 8E, so that the roof portion 8A rolls before moving. Return to position. As a result, it is possible to take measures against vibrations in the piston 8 that can be moved up and down inside the storage unit body 1.

  In the storage device of this embodiment, it is preferable that the restoring force mechanism 8E includes a damping element that applies a damping force between the guide frame 8B and the roof portion 8A.

  According to this storage device, excessive movement of the roof portion 8A can be suppressed by applying a damping force between the guide frame 8B and the roof portion 8A by the damping element of the restoring force mechanism 8E.

  In the storage device of the present embodiment, the restoring force mechanism 8E preferably includes a spherical pendulum support.

  According to this storage device, the restoring force mechanism 8E can be realized by the spherical pendulum support.

  Further, in the storage device of the present embodiment, the restoring force mechanism 8E faces the vertically downward surface of the guide frame 8B (upper support portion 8BAa of the support portion 8BA) and the upper vertical direction of the roof portion 8A. It is preferable to be provided between the surface (the upper surface 8ABa of the piston foot ring 8AB).

  In the storage device of the present embodiment, the piston 8 rises as the atmospheric pressure in the lower space of the roof portion 8A rises. Therefore, the roof portion 8A rises with respect to the guide frame 8B. Acts on the restoring force mechanism 8E. Therefore, when the restoring force mechanism 8E always functions, the restoring force mechanism portion 8EB of the restoring force mechanism 8E includes the upper surface 8ABa of the piston foot ring 8AB in the roof portion 8A and the upper support portion 8BAa of the support portion 8BA in the guide frame 8B. It is preferable that it is provided between. Further, the lower surface 8ABb of the piston foot ring 8AB in the roof portion 8A and the lower support portion 8BAb of the support portion 8BA in the guide frame 8B are separated from each other as the roof portion 8A rises with respect to the guide frame 8B. Therefore, the moving mechanism 8EA of the restoring force mechanism 8E may be configured to allow this action or may not be provided.

  Moreover, in the storage device of the present embodiment, the roof portion 8A preferably has a piston foot ring 8AB disposed at an end portion on the guide frame 8B side.

  According to this storage device, the piston foot ring 8AB is disposed at the end of the roof 8A on the guide frame 8B side, and the restoring force mechanism 8E is provided between the piston foot ring 8AB and the guide frame 8B. Thus, vibration countermeasures can be easily applied to the piston 8.

  Moreover, in the storage apparatus of this embodiment, it is preferable that piston foot ring 8AB contains balance concrete.

  According to this storage device, the balance weight is included in the piston foot ring 8AB so that the function of adjusting the weight of the piston 8 by the balance concrete and the restoring force mechanism 8E is provided between the piston foot ring 8AB and the guide frame 8B. The vibration countermeasure of the piston 8 can be taken together.

  Moreover, in the storage apparatus of this embodiment, it is preferable to have the 2nd sealing mechanism 8F which seals between the guide frame 8B and the roof part 8A.

  In the general storage device, the roof portion 8A is fixed to the guide frame 8B, and the upper and lower spaces of the piston 8 can be sealed by the first seal mechanism 8D. However, in the storage device of the present embodiment, the roof portion 8A has the guide frame 8B. Since the second seal mechanism 8F that seals between the guide frame 8B and the roof portion 8A is provided, the sealability of the upper and lower spaces of the piston 8 can be ensured.

  Moreover, in the storage apparatus of this embodiment, it is preferable that the storage part main body 1 stores the gas G. FIG.

  When the gas G is stored in the storage unit main body 1, the piston 8 is moved up and down by the pressure of the gas G, and the storage device of this embodiment is applied to the piston 8 of the storage unit main body 1 having such a configuration. Thus, it is possible to suitably take measures against vibration of the piston 8.

[Embodiment 4]
FIG. 7 is an enlarged vertical cross-sectional view of the storage device according to the present embodiment.

  The present embodiment differs from the first embodiment described above in the restoring force mechanism 8E. Therefore, in this embodiment, the same code | symbol is attached | subjected to the structure equivalent to Embodiment 1 mentioned above, and the description is abbreviate | omitted.

  As shown in FIG. 7, the restoring force mechanism 8 </ b> E includes a moving mechanism unit 8 </ b> EA and a restoring force mechanism unit 8 </ b> EB.

  The moving mechanism portion 8EA is provided between the roof portion 8A and the guide frame 8B. Specifically, the movement mechanism portion 8EA is provided between the lower surface 8ABb of the piston foot ring 8AB in the roof portion 8A and the lower support portion 8BAb of the support portion 8BA in the guide frame 8B. The moving mechanism portion 8EA is capable of relatively moving the lower surface 8ABb of the piston foot ring 8AB and the lower support portion 8BAb of the support portion 8BA in the direction intersecting the axial direction of the storage unit body 1 and in the horizontal direction. Connecting. For example, the moving mechanism 8EA may contact the plane provided on the lower surface 8ABb of the piston foot ring 8AB with the plane provided on the lower support 8BAb of the support 8BA with relative slip. And the other plane is brought into contact with the plane with a relative slip by a point or a line. Thus, the roof portion 8A is provided on the guide frame 8B via the piston foot ring 8AB so as to be movable in the horizontal direction, and the movement of the storage portion main body 1 in the radial direction is allowed. As described above, the moving mechanism 8EA supports the roof 8A with respect to the guide frame 8B so as to be movable in a direction perpendicular to the cylindrical axial direction of the storage unit body 1. Moreover, since the piston foot ring 8AB is connected to the guide frame 8B, the roof portion 8A is provided so as to be movable up and down with respect to the storage unit body 1 together with the guide frame 8B.

  The restoring force mechanism 8EB is provided on the piston foot ring 8AB. Specifically, as shown in FIG. 7, the restoring force mechanism 8EB is configured as a liquid damper in which the liquid 8EBh is accommodated in a sealed box body 8EBg of the piston foot ring 8AB. This liquid damper returns the movement of the roof portion 8A in the horizontal direction by the moving mechanism portion 8EA to the original stationary position by the liquid 8EBh housed in the box 8EBg, and the moving mechanism portion 8EA Absorbs and attenuates the energy of shaking (movement) of the roof portion 8A in the horizontal direction.

  Thus, the restoring force mechanism 8E supports the roof portion 8A so as to be movable in the direction orthogonal to the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B, and the roof portion 8A and the guide frame A restoring force is applied to 8B.

  The piston 8 configured in this manner is provided such that the guide frame 8B can be moved up and down along the axial direction with respect to the storage unit body 1 with the roof portion 8A, and the first seal mechanism 8D is moved up and down when the guide frame 8B is raised and lowered. Seals between the guide frame 8B and the storage unit main body 1 (the fixed portion 8Ca of the linear motion portion 8C). Further, the piston 8 is provided so that the roof portion 8A can move in the horizontal direction with respect to the guide frame 8B. When the roof portion 8A moves, the second seal mechanism 8F seals between the guide frame 8B and the roof portion 8A. To do. That is, the piston 8 is provided so as to be movable up and down inside the storage unit body 1 in a state where the upper and lower spaces of the storage unit body 1 with the roof 8A as a boundary are sealed by the first seal mechanism 8D and the second seal mechanism 8F. . For this reason, the gas G is caused to flow into the space below the roof portion 8A in the storage body 1 and the air pressure in the space below the roof portion 8A rises, so that the piston 8 rises. The gas G flows out from the space below the roof portion 8A, and the pressure in the space below the roof portion 8A decreases, so that the piston 8 descends.

  In the storage device of the present embodiment, the piston 8 moves the roof portion 8A with respect to the guide frame 8B in a direction (horizontal direction) perpendicular to the cylindrical axial direction of the storage portion main body 1 by the moving mechanism portion 8EA. It has a restoring force mechanism 8E that supports it and allows a restoring force to act between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB.

  According to this storage device, when a roll is applied during an earthquake, the roof 8A of the piston 8 is moved in the cylindrical axial direction of the storage unit body 1 with respect to the guide frame 8B by the moving mechanism 8EA of the restoring force mechanism 8E. It is possible to move in the direction orthogonal to the side, and the situation where the vibration of rolling is transmitted to the roof portion 8A is reduced. Moreover, according to this storage device, the restoring force is applied between the guide frame 8B and the roof portion 8A by the restoring force mechanism portion 8EB of the restoring force mechanism 8E, so that the roof portion 8A rolls before moving. Return to position. As a result, it is possible to take measures against vibrations in the piston 8 that can be moved up and down inside the storage unit body 1.

  In the storage device of this embodiment, it is preferable that the restoring force mechanism 8E includes a damping element that applies a damping force between the guide frame 8B and the roof portion 8A.

  According to this storage device, excessive movement of the roof portion 8A can be suppressed by applying a damping force between the guide frame 8B and the roof portion 8A by the damping element of the restoring force mechanism 8E.

  In the storage device of the present embodiment, the restoring force mechanism 8E preferably includes a liquid damper.

  According to this storage device, the restoring force mechanism 8E can be realized by the liquid damper.

  Moreover, in the storage device of the present embodiment, the roof portion 8A preferably has a piston foot ring 8AB disposed at an end portion on the guide frame 8B side.

  According to this storage device, the piston foot ring 8AB is disposed at the end of the roof portion 8A on the guide frame 8B side, and the piston foot ring 8AB incorporates a liquid damper as a restoring force mechanism 8E. Vibration countermeasures can be easily applied to the piston 8.

  Moreover, in the storage apparatus of this embodiment, it is preferable that piston foot ring 8AB contains balance concrete.

  According to this storage device, by including the balance concrete in the piston foot ring 8AB, the function of adjusting the weight of the piston 8 by the balance concrete, the vibration countermeasure of the piston 8 provided with the restoring force mechanism 8E in the piston foot ring 8AB, Can be applied together. In the case of the present embodiment, as shown in FIG. 7, since the liquid damper as the restoring force mechanism 8E is built in the piston foot ring 8AB, it is not clearly shown in the figure. It is provided in a part of.

  Moreover, in the storage apparatus of this embodiment, it is preferable to have the 2nd sealing mechanism 8F which seals between the guide frame 8B and the roof part 8A.

  In the general storage device, the roof portion 8A is fixed to the guide frame 8B, and the upper and lower spaces of the piston 8 can be sealed by the first seal mechanism 8D. However, in the storage device of the present embodiment, the roof portion 8A has the guide frame 8B. Since the second seal mechanism 8F that seals between the guide frame 8B and the roof portion 8A is provided, the sealability of the upper and lower spaces of the piston 8 can be ensured.

  Moreover, in the storage apparatus of this embodiment, it is preferable that the storage part main body 1 stores the gas G. FIG.

  When the gas G is stored in the storage unit main body 1, the piston 8 is moved up and down by the pressure of the gas G, and the storage device of this embodiment is applied to the piston 8 of the storage unit main body 1 having such a configuration. Thus, it is possible to suitably take measures against vibration of the piston 8.

DESCRIPTION OF SYMBOLS 1 Storage part body 2 Side plate 8 Piston 8A Roof part 8AA Roof 8AB Piston foot ring 8ABa Upper surface 8ABa Fixed piece 8ABb Lower surface 8ABc Outer peripheral surface 8B Guide frame 8BB Guide part 8BBa Vertical member 8BAb Upper support part 8BAb Reinforcement member 8BAb 8BAc Outer peripheral support portion 8C Linear motion portion 8Ca Fixed portion 8Cb Movable portion 8D First seal mechanism 8E Restoring force mechanism 8EA Moving mechanism portion 8EB Restoring force mechanism portion 8EBa Damping rubber 8EBb Connection flange 8EBc Restoring spring 8EBd Dump portion 8EBe Convex surface E Box 8EBh Liquid 8F Second seal mechanism G Gas

Claims (11)

A cylindrical storage body in which gas is stored ;
A piston that seals the inner surface of the storage unit body and is movable up and down relative to the storage unit body;
The piston is
A roof portion disposed inside the storage body, and
A guide frame that supports an end portion of the roof portion facing the cylindrical inner peripheral surface of the storage portion body;
It has a fixed part fixed to the storage part body and a movable part fixed to the guide frame, and supports the guide frame movably in the cylindrical axial direction of the storage part body with respect to the storage part body. A linear motion part,
A first seal mechanism that seals between the guide frame and the fixed portion of the linear motion portion;
The roof portion is supported so as to be movable in a direction perpendicular to the cylindrical axial direction of the storage portion main body with respect to the guide frame, and a restoring force is applied between the guide frame and the roof portion. A restoring force mechanism;
A storage device comprising:   The storage device according to claim 1, wherein the restoring force mechanism includes a damping element that applies a damping force between the guide frame and the roof portion. The storage device according to claim 2, wherein in the restoring force mechanism, the damping element includes a damping rubber bearing. The storage device according to claim 2, wherein in the restoring force mechanism, the damping element includes a restoring spring and a damper. The storage device according to claim 2, wherein in the restoring force mechanism, the damping element includes a spherical pendulum bearing. The storage device according to claim 2, wherein in the restoring force mechanism, the damping element includes a liquid damper.   The said restoring force mechanism is provided between the surface which faced the perpendicular direction lower side of the said guide frame, and the surface which faced the perpendicular direction upper side of the said roof part, The Claim 3 or 5 characterized by the above-mentioned. Storage device.   The storage device according to claim 4, wherein the restoring force mechanism is disposed on surfaces of the guide frame and the roof portion that face each other in a vertical direction.   The said roof part has a piston foot ring arrange | positioned at the edge part by the side of the said guide frame, The storage apparatus as described in any one of Claim 1 to 8 characterized by the above-mentioned. The storage device according to claim 9 , wherein the piston foot ring includes balance concrete.   The storage device according to any one of claims 1 to 10, further comprising a second seal mechanism that seals between the guide frame and the roof portion.

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