JP4429254B2 - Insulation cover - Google Patents

Description

  In the present invention, a large number of heat insulating cover bodies having four sides are arranged vertically and horizontally along the outer peripheral surface of a heat insulating object, and the adjacent heat insulating cover bodies are connected to each other by connecting means. The heat insulating cover body is configured to cover the outer peripheral surface of the heat insulating object, and the overlap member is adjacent to the two sides of the heat insulating cover body so as to cover joints between adjacent heat insulating cover bodies from the outside. It is related with the cover member for heat insulation provided.

Such a heat insulating cover member is used to cover the outer peripheral surface of the object to be insulated and to insulate it from the outside air, and a large number of heat insulating cover bodies are arranged vertically and horizontally along the outer peripheral surface of the heat insulating object. In such a state, the joint between the heat insulating cover bodies adjacent to each other by the overlap member is covered from the outside to prevent leakage of heat from the joint.
And in this kind of heat insulation cover member, the overlap member which covers the joint between the adjacent heat insulation cover main bodies was conventionally fixed to the heat insulation cover main body (for example, refer patent document 1).

JP 2000-337588 A

Therefore, in the conventional heat insulating cover member, the overlapping members fixed to the respective heat insulating cover bodies are sequentially arranged in a state where a large number of heat insulating cover main bodies are arranged vertically and horizontally along the outer peripheral surface of the heat insulating object. The surface of the cover main body for heat insulation adjacent to is covered.
Therefore, for example, when the necessity of inspection for a heat insulation target occurs at a specific location of the heat insulation target, it is not possible to remove only the heat insulation cover main body that covers the specific location due to the overlap member. In extreme cases, it is necessary to remove the insulation cover body in order from the end of the insulation object, and after the inspection work, it is necessary to reattach many of the removed insulation cover bodies. There was a problem that much labor and time were required for inspection.
Furthermore, if the object to be insulated is a pipe or tank in a nuclear reactor, not only the problem that inspection work takes a long time, but also the outer peripheral surface of the object to be insulated is left exposed for a long time. Leakage of radiation from the water becomes a problem, and inspection workers may be exposed to danger.

  The present invention pays attention to such a conventional problem, and its purpose is to quickly remove the heat insulating cover body covering the necessary part of any part of the heat insulating object, Another object of the present invention is to provide a heat insulating cover member that can be quickly attached.

  A first characteristic configuration of the present invention is that a plurality of heat insulating cover bodies having four sides are arranged vertically and horizontally along the outer peripheral surface of an object to be insulated, and adjacent heat insulating cover bodies are connected to each other by connecting means. By doing so, the outer peripheral surface of the heat insulation object can be covered freely by the large number of heat insulation cover bodies, and the overlap member is covered with the heat insulation cover so as to cover joints between adjacent heat insulation cover bodies from the outside. An action posture that is attached to two adjacent sides of the main body so as to be swingable, and that protrudes outward from the outer surface of the heat insulating cover main body along the surface thereof by swinging the overlap member, and covers the joint from the outside; The heat insulation cover main body is configured to be capable of changing its posture from an outer surface of the heat insulating cover body to a non-action posture that does not protrude outward along the surface.

According to the first characteristic configuration of the present invention, the overlap member that covers the joint between the adjacent heat insulating cover bodies from the outside protrudes outward along the surface from the outer surface of the heat insulating cover body to Since the posture can be changed between an action posture that covers from the outside and a non-action posture that does not protrude outward along the surface from the outer surface of the heat insulation cover body, the outer peripheral surface of the object to be insulated by the heat insulation cover body In the state where the cover member is covered, it is possible to prevent the leakage of heat from the joints by setting the overlap member of each heat insulating cover body to the working posture, and if the heat insulating object is a pipe or tank in a nuclear reactor, In addition to heat leakage from joints, radiation leakage can also be shielded.
In addition, the overlap member is swingably attached to the heat insulation cover body, and the posture can be changed between the action posture and the non-action posture by swinging the overlap member. The posture of the wrap member can be changed relatively easily and quickly, and there is little risk of losing the overlap member when performing inspection work.
Therefore, it is possible to quickly remove and attach only the necessary heat insulation cover body for inspection work, etc., and the inspection work can be carried out in a short time with a small amount of labor, and the object to be insulated is If it is a furnace pipe or tank, it is possible to minimize the leakage of radiation from the insulation object and to ensure the safety of inspection workers.

  According to a second characteristic configuration of the present invention, as the connection means, a connection member provided on one of the overlap member and the cover body for heat insulation and a connected member provided on the other are provided, and the connection The overlap member is configured to maintain the action posture by connecting the member and the connected member.

  According to the second characteristic configuration of the present invention, as the connecting means, a connecting member provided in one of the overlap member and the heat insulating cover body and a connected member provided in the other are provided. Since the overlap member is configured to maintain the action posture by connecting the connection member and the connected member, the action posture of the overlap member can be reliably maintained, and the connection member and It is also possible to change the posture of the overlap member to the non-acting posture by releasing the connection with the connected member.

  The 3rd characteristic structure of this invention exists in the place where the said connection member and to-be-connected member are comprised with the buckle type coupling tool.

  According to the 3rd characteristic structure of this invention, since the connection member and the to-be-connected member are comprised with the buckle type connection tool, the connection and the connection cancellation | release of a connection member and to-be-connected member can be performed by one-touch, Therefore, it is possible to quickly change the posture of the overlap member.

An embodiment of a heat insulating cover member according to the present invention will be described with reference to the drawings.
For example, as shown in FIGS. 1 and 2, the heat insulating cover member covers the outer peripheral surface of the pipe P in a nuclear reactor that is an example of a heat insulating object, and keeps the fluid flowing through the pipe P warm. And it is used in order to shield the radiation which leaks from the piping P, and as shown in detail in FIG. 3 and FIG. 4, it has the rectangular heat insulation cover main body 1 which has four sides in planar view. .
As shown in FIG. 5, the heat insulating cover body 1 has a closure 2 made of a stainless steel plate covering the periphery, and is bent along the outer surface of the pipe P. A heat insulating material 3 such as glass wool is accommodated. In some cases, a reflecting plate for reflecting heat is also accommodated, and a lead plate 4 for shielding radiation is also accommodated.

A long side overlap member 5 made of stainless steel is disposed on one of the long sides of the rectangular heat insulating cover body 1, and the long side overlap member 5 has a hinge 7 as shown in FIG. Is attached so as to be swingable around an axis L1 parallel to the long side, and protrudes outward along the surface from the outer surface of the heat insulating cover body 1 as shown in FIG. Working posture A which covers the joint between the heat insulating cover main bodies 1 from the outside and a non-working posture which does not protrude outward along the surface from the outer surface of the heat insulating cover main body 1 as shown in FIG. B can be changed in posture.
A short side overlap member 6 made of stainless steel is also attached to one of the short sides of the heat insulating cover body 1 via a hinge 7 so as to be swingable around an axis L2 parallel to the short side, and adjacent heat insulation is provided. The action posture A that covers the joints between the cover main bodies 1 from the outside and the non-action posture B that does not protrude outward along the surface from the outer surface of the heat insulation cover main body 1 can be changed.

Among the long sides of the heat insulating cover body 1, a plurality of male members 8a of a buckle type connecting tool 8 as a connecting member are attached to the side opposite to the side where the long side overlap member 5 is attached. A plurality of female members 8b of a buckle type connecting tool 8 as a connected member are attached to the overlap member 5, and the male member 8a is engaged with the female member 8b on the long side of the heat insulating cover body 1 adjacent to each other. The long side overlap member 5 is configured to maintain the action posture A described above by being tightened and connected.
Similarly, a plurality of male members 8a of a buckle type connecting tool 8 as a connecting member are attached to the opposite side of the short side of the heat insulating cover body 1 to the side on which the short side overlap member 6 is attached. A plurality of female members 8b of a buckle-type connector 8 as a connected member are attached to the side overlap member 6, and the male member 8a is engaged with the female member 8b on the short side of the heat insulating cover body 1 adjacent to each other. Thus, the short side overlap member 6 is configured to maintain the action posture A described above.

That is, on the long side and the short side of the heat insulating cover body 1, the buckle type coupler 8 having the same structure is attached, and the long side overlap member 5 and the short side overlap member 6 are set to the action posture A. Although it is configured to maintain, a buckle-type connector 9 having a slightly different structure is attached to the short side of the heat insulating cover main body 1 between the pair of heat insulating cover main bodies 1 in the circumferential direction of the pipe P. It has been.
This buckle-type connector 9 is a buckle-type connector that can adjust the tightening allowance. As shown in FIG. 4, the male member 9a of the buckle-type connector 9 that can adjust the tightening allowance is connected to the short side over. A plurality of female members 9b of the buckle-type connector 9 that are attached to the side opposite to the side to which the wrap member 6 is attached and that can be adjusted for tightening as a connected member are attached to the short side overlap member 6 and are mutually attached. On the short side of the pair of adjacent heat insulating cover bodies 1, the male member 9 a is engaged with the female member 9 b to be tightened and connected so that the short side overlap member 6 maintains the above-described action posture A. It is configured.

Of the long sides of the heat insulating cover body 1, a turnable hook member 10 a constituting the connecting means 10 is embedded in the side surface on the side where the long side overlap member 5 is attached, as shown in FIG. 6. In addition, a hexagonal hole 11 for rotating the hook member 10a is attached in a state of being exposed on the outer surface of the heat insulating cover body 1, and a pin-like shape constituting the connecting means 10 is provided on the opposite side surface. The hooked member 10b is embedded and attached.
As shown in FIG. 3, the hook member 10a is configured to be engaged or disengaged with respect to the hooked member 10b by inserting a tool 12 made of a hexagonal bar into the hexagonal hole 11 and rotating it. By rotating in the tightening direction while engaged with the hooked member 10b, the hook member 10a and the hooked member 10b are drawn in directions close to each other, and the adjacent heat insulating cover bodies 1 are firmly connected to each other. It is configured to be.

Next, a procedure for covering the outer peripheral surface of the pipe P, which is a heat insulation object, using this heat insulation cover member and removing the heat insulation cover member as necessary will be described.
First, on the outer peripheral surface of the pipe P, the heat insulating cover main body 1 is disposed in the circumferential direction, the short side overlap member 6 is swung to the action posture A, and the heat insulating cover main bodies 1 adjacent to each other in the circumferential direction are arranged. They are sequentially connected by a buckle type connecting tool 8. That is, the male member 8a of the buckle-type connector 8 is engaged with the female member 8b and sequentially tightened and connected, and finally, the male member 9a of the buckle-type connector 9 capable of adjusting the tightening allowance is engaged with the female member 9b. And tighten.
Thereby, while the short side overlap member 6 of each heat insulation cover main body 1 is maintained in the action posture A, a plurality of heat insulation cover main bodies 1, in this embodiment, a total of eight heat insulation cover main bodies 1 are provided. The pipes P are connected along the circumferential direction. Therefore, in the circumferential direction of the pipe P, the buckle connector 8 and the buckle connector 9 with adjustable tightening allowance function as connecting means for maintaining the short side overlap member 6 in the acting posture A, It also functions as a connecting means for connecting the heat insulating cover body 1 in the circumferential direction of the pipe P.

Thereafter, the heat insulating cover main body 1 is disposed in the axial direction of the outer peripheral surface of the pipe P, and the hexagonal bar tool 12 is inserted into the hexagonal hole 11 of the hook member 10a to rotate, so that the heat insulation adjacent to the axial direction is provided. The hook member 10a is engaged with the hooked member 10b of the cover main body 1 and tightened. Further, the long side overlap member 5 is swung to the action posture A, and the male member 8a of the buckle type connecting device 8 is changed to female. The member 8b is engaged and tightened.
In this way, a large number of heat insulating cover bodies 1 are arranged vertically and horizontally to cover the outer peripheral surface of the pipe P, and the joint between the heat insulating cover bodies 1 adjacent to each other in the axial direction of the pipe P is a long side. By the side overlap member 5, joints between the heat insulating cover bodies 1 adjacent in the circumferential direction are respectively covered by the short side overlap members 6, and radiation from the joints is also shielded reliably.

And, for example, when it is necessary to inspect at a specific location of the pipe P, as shown in FIG. 2, the long side overlap member 5 and the short side covering the heat insulating cover body 1 that needs to be removed. The side overlap member 6 is changed to the non-acting posture B by swinging, and the connection by the buckle type couplers 8 and 9 and the connecting means 10 connecting the adjacent heat insulating cover body 1 is released.
Thereby, it becomes possible to remove only the necessary heat insulating cover body 1 among the heat insulating cover bodies 1 arranged along the outer peripheral surface of the pipe P, and after the inspection is finished, the removed heat insulating cover body 1 can be removed. The cover main body 1 can be attached as it was.
Therefore, it is possible to quickly remove and attach the heat insulating cover body 1 and to minimize the possibility of radiation exposure to the worker.

[Reference example]
A long-side overlap member 5 and a short-side overlap member 6 are swingably attached to the heat insulating cover body 1 , and an action posture A and a non-action posture are obtained by swinging the overlap members 5 and 6. Although an example in which the posture can be changed is shown in B, for example, as shown in FIG. 8, the long-side overlap member 5 and the short-side overlap member 6 can be freely attached to and detached from the heat insulating cover body 1. It is also possible to provide a posture changeable between an action posture A shown in (a) and a non-action posture B shown in (b).
That is, the male member 8a of the buckle connector 8 attached to the heat insulating cover body 1 side is engaged with the female member 8b of the buckle connector 8 attached to the overlap members 5 and 6 to be tightened and connected. Thus, each of the overlap members 5 and 6 is changed to the action posture A, the connection by the buckle type coupler 8 is released, and each of the overlap members 5 and 6 is removed from the heat insulating cover body 1 to the non-action posture B. It can also be configured to change.

[Another embodiment]
Next, another embodiment will be described. However, in order to avoid redundant description, the components described in the previous embodiment and the components having the same action are denoted by the same reference numerals, and the description thereof is omitted. A configuration different from the embodiment will be described.
(1) In the previous embodiments, the example in which the heat insulating cover main body 1 was formed in a rectangular shape in plan view was shown. However, for the heat insulating cover main body 1, in addition to the rectangle, for example, a square, trapezoid, rhombus, etc. The overlap members 5 and 6 can be formed without being divided into the long side overlap member 5 and the short side overlap member 6. For example, the overlap members 5 and 6 may be integrated into an L shape.
Further, in the embodiments so far, the buckle type couplers 8 and 9 are used as connecting means for connecting the heat insulating cover bodies 1 adjacent to each other in the circumferential direction of the pipe P, and the heat insulating adjacent to the axial direction of the pipe P is used. Although the example which used the coupling tool which consists of the hook member 10a and the to-be-hooked member 10b was shown as the connection means 10 which connects the cover main bodies 1 for an object, various changes are possible about the concrete structure of these connection means. .

(2) In the embodiments described so far, the piping in the nuclear reactor has been described as an example of the thermal insulation object P. However, a cylinder other than the piping, for example, a tank in the nuclear reactor, etc. may be implemented as the thermal insulation object P. In addition, pipes and tanks in various facilities other than the reactor, and various devices other than the pipes and tanks can be implemented as the heat insulation object P.

The perspective view which shows the use condition of the cover member for heat insulation The perspective view which shows the use condition of the cover member for heat insulation Perspective view of cover member for heat insulation Perspective view of cover member for heat insulation Cross-sectional view of cover member for heat insulation Partially cutaway plan view of cover member for heat insulation Side view of essential parts of cover member for heat insulation Side view of essential parts of cover member for heat insulation according to reference example

DESCRIPTION OF SYMBOLS 1 Heat insulation cover main body 5,6 Overlap member 8,9 Buckle type connection tool 8a, 9a Connection member 8b, 9b Connected member 10 Connection means 10a Hook member 10b which comprises a connection means 10b A connection means is comprised Hooked member A Action posture of overlap member B Non-action posture of overlap member P Piping in reactor as heat insulation object

Claims (3)

A large number of heat insulating cover bodies having four sides are arranged vertically and horizontally along the outer peripheral surface of the object to be insulated, and the adjacent heat insulating cover bodies are connected to each other by connecting means, whereby a large number of heat insulating covers are provided. The outer peripheral surface of the heat insulating object can be covered by the main body, and the overlap member can be swung freely on two adjacent sides of the heat insulating cover main body so as to cover the joint between the adjacent heat insulating cover main bodies from the outside. Attached to the
By the swinging of the overlap member, an action posture that protrudes outward along the surface from the outer surface of the heat insulating cover body and covers the joint from the outside, and along the surface from the outer surface of the heat insulating cover body. A heat insulating cover member configured to be changeable to a non-acting posture that does not protrude outward. As the connecting means, a connecting member provided on one of the overlap member and the cover body for heat insulation and a connected member provided on the other are provided, and by connecting the connecting member and the connected member , The heat insulation cover member according to claim 1, wherein the overlap member is configured to maintain the action posture. The heat insulating cover member according to claim 2, wherein the connecting member and the member to be connected are constituted by a buckle type connecting tool .

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