JP4776457B2 - Thermal storage gas processing equipment - Google Patents

Description

  The present invention relates to a heat storage type gas treatment device used for purification treatment of exhaust gas containing pollutants and deodorization treatment of exhaust gas containing malodorous substances, and more specifically (see FIGS. 3, 5, and 11), which contains a heat storage material 5a. A plurality of heat storage chambers 5 are provided, and one end of each of the heat storage chambers 5 is communicated with the combustion chamber 6 provided with the combustion means 7, and the other end of each of the heat storage chambers 5 is individually connected to the plurality of supply / discharge ports 16 of the distributor 10. And a supply / exhaust port 16 through which the gas G to be treated introduced into the combustion chamber 6 from the gas supply passage 39 passes, and a supply / exhaust passage through which the treated gas G ′ led out from the combustion chamber 6 to the gas discharge passage 40 passes. While maintaining the state in which both of the ports 16 exist, each of the supply / exhaust ports 16 is alternately switched between the gas to be processed state and the processed gas passage state by the rotation in the sliding contact state with respect to the distributor 10. A switching valve body 11 is provided. That relates to regenerative gas treatment device.

  In this type of regenerative gas processing apparatus (see FIG. 3, FIG. 5 and FIG. 11), part of the gas G to be processed introduced from the gas supply path 39 via the switching valve body 11 and the distributor 10. Is passed through the heat storage chamber 5 to reach the combustion chamber 6, in which the pollutants and odorous substances in the gas to be treated are treated by combustion, and the treated gas G ′ treated in the combustion chamber 6 is processed. Is passed through the other heat storage chamber 5 to store heat in the stored heat storage material 5a of the heat storage chamber 5, and then led out to the gas discharge passage 40 through the supply / discharge port 16 and the switching valve body 11 with respect to the heat storage chamber 5. ing.

  And in this process, by rotating the switching valve body 11 in a sliding contact state with respect to the distributor 10, the supply / exhaust port 16 through which the gas G to be processed passes and the supply / exhaust port 16 through which the processed gas G ′ passes. While maintaining the state in which both are present, each of the supply / exhaust ports 16 is alternately switched between the gas to be processed and the gas to be processed, so that the heat storage previously stored with the passage of the processed gas G ′ is performed. The material 5a preheats the gas G to be processed in the course of passing through each heat storage chamber 5 to improve the thermal efficiency.

By the way, conventionally, in order to rotate the switching valve body 11 in a sliding contact state with respect to the distributor 10 between the driving section for rotating the switching valve body 11 and the distributor 10, The structure which pivotally attaches the rotating shaft of the switching valve body 11 was taken. (For example, see Patent Document 1 below)
And when checking the sliding contact part of the switching valve body 10 and the divider | distributor 11 on the structure (for example, visual inspection etc.), communication with the divider | distributor 10 and the thermal storage chamber 5 is cancelled | released, and the divider | distributor 10 is provided. After switching off, the switching valve body 10 and the distributor 11 are separated from each other.

JP-A-2005-61675

  However, in the conventional structure as described above in which communication between the distributor 10 and the heat storage chamber 5 must be released and the distributor 10 must be removed to separate the switching valve body 10 and the distributor 11 from each other. Although the sliding contact portion between the distributor 11 and the distributor 11 is easily damaged by the rotation of the switching valve body 10, a large-scale work using a crane or the like is required to remove the distributor 10 even though relatively frequent inspection is required. As a result, there is a problem that a great amount of work time and labor is required every time the sliding contact point is inspected.

  In view of this situation, the main problem of the present invention is to effectively solve the above problems with a rational improvement.

[1] The first characteristic configuration of the regenerative gas processing apparatus according to the present invention is:
A plurality of heat storage chambers containing heat storage materials are provided, and one end of each heat storage chamber communicates with a combustion chamber provided with combustion means, and the other end of each heat storage chamber communicates individually with a plurality of supply / exhaust ports of the distributor Let
While maintaining the state where both the supply / exhaust port through which the gas to be processed introduced into the combustion chamber from the gas supply path passes and the supply / exhaust port through which the processed gas led out from the combustion chamber to the gas discharge path pass exist, A regenerative gas processing apparatus provided with a switching valve body that alternately switches each of the supply / exhaust ports between a gas passing state and a gas passing state by rotation in a sliding contact state with the distributor. ,
A connection operation position for connecting the drive unit for rotating the switching valve body to the rotation shaft of the switching valve body to rotate the switching valve body, and a state where the connection to the rotation shaft of the switching valve body is released Thus, the position of the switching valve body can be switched to the retracted position allowing the disengagement movement of the switching valve body to the non-distributor side.

  That is, according to the first characteristic configuration, in the structure in which the switching valve body is rotated in the sliding contact state with respect to the distributor between the driving unit that rotates the switching valve body and the distributor, the connection action position of the driving unit is By switching the position to the retracted position, it is possible to move the switching valve body away from the anti-distributor, so that the switching valve body and the distributor can be separated by moving the switching valve body, It is possible to inspect the sliding contact area between the switching valve body and the distributor without performing the work of removing the distributor that requires a large-scale work. The work time required for the inspection can be shortened and the work labor can be saved, which is advantageous in terms of maintenance.

  In the implementation of the first characteristic configuration, the distance allowing the detachment movement of the switching valve body to the anti-distributor side is used to check the sliding contact point between the switching valve body and the distributor by the detachment movement. In addition, it is preferable to set the distance so that parts can be replaced at the sliding contact portion (for example, replacement of a seal member or the like interposed at the sliding contact portion).

[2] The second characteristic configuration of the present invention specifies an embodiment suitable for the implementation of the first characteristic configuration.
In the state where the connection of the drive unit to the rotating shaft of the switching valve body is released, the connecting portion of the drive unit to the rotating shaft of the switching valve body is configured to be displaceable in a perspective direction with respect to the rotating shaft. .

  That is, according to the second characteristic configuration, when the position of the drive unit is switched, the connection portion of the drive unit is rotated in the state where the connection of the drive unit to the rotation shaft of the switching valve body is released. Since it can be displaced to the far side in the perspective direction with respect to the shaft (that is, the side away from the rotating shaft), the displacement of the connecting portion to the far side causes the rotating shaft of the switching valve body and the connecting portion of the drive unit to At the time of switching the position of the drive unit, the contact pressure can be reduced, or the rotary shaft of the switching valve body and the connecting portion of the drive unit can be separated so that the contact pressure between the rotary shaft and the connecting portion is not required. The contact friction between the rotating shaft of the switching valve body and the connecting portion of the drive unit can be reduced or eliminated, thereby effectively reducing the position switching resistance (movement resistance) of the drive unit due to the contact friction. Reduction The power and labor required to switch the position of the drive unit can be saved, and the rotating shaft of the switching valve body or the connecting part of the drive unit is damaged by the contact friction. Can be effectively suppressed or prevented.

[3] The third characteristic configuration of the present invention specifies an embodiment suitable for the implementation of the second characteristic configuration.
An air spring mechanism is provided that presses the connecting portion of the drive unit toward the approaching side with respect to the rotating shaft by gas pressure.

  That is, according to the third characteristic configuration, the pressing force on the connecting portion of the drive unit can be adjusted by adjusting the gas pressure applied to the air spring mechanism, and the displacement amount of the connecting portion of the drive unit can be adjusted. Therefore, for example, the displacement amount of the connecting portion can be adjusted easily and with high precision compared to the case where the urging means such as a coil spring or rubber is combined with the engaging means to displace the connecting portion. Thus, it is possible to easily and effectively achieve the effect of the second characteristic configuration that saves power and labor required for switching the position of the drive unit, and suppresses or prevents damage to the rotating shaft of the switching valve body or the connecting portion of the drive unit. Can be obtained.

  Further, by adjusting the amount of displacement of the connecting portion of the drive unit by adjusting the gas pressure as described above, the connecting portion of the drive unit is further desired in the near side in the perspective direction with respect to the rotating shaft of the switching valve body at the connecting action position. The switching valve body can be biased to the distributor side with a desired biasing force by shifting the amount, so that the switching valve body and the distributor are in an appropriate sliding state (for example, both airtightness and wear resistance). In this way, it is possible to achieve the most advantageous sliding contact state), and thus damage at the sliding contact portion between the distributor and the switching valve body due to the rotation of the switching valve body (distributor, switching valve body, or those In the meantime, it is possible to effectively prevent problems such as mixing of the gas to be processed into the processed gas at the sliding contact point, while preventing damage to the sealing member interposed between the Effectively demonstrate the switching function by the body It can be.

[4] The fourth characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to third characteristic configurations,
The rotating shaft of the switching valve body is configured by detachably connecting a plurality of divided shaft portions.

  That is, according to the fourth characteristic configuration, the split shaft portions are allowed to move with each other as the switching valve body is allowed to move away from the distributor side by switching the position of the drive unit from the coupling operation position to the retracted position. For example, by separating the divided shaft portions from each other, for example, a device different from the sliding contact portion between the distributor and the switching valve body through the divided shaft portions. It is possible to inspect the location or replace parts in other locations of the apparatus, which can be further advantageous in terms of maintenance.

[5] The fifth characteristic configuration of the present invention specifies an embodiment suitable for any one of the first to fourth characteristic configurations.
Guiding means for guiding the movement of the drive unit across the coupling action position and the retracted position is provided.

  That is, according to the fifth feature configuration, the movement of the drive unit from the coupling action position to the retracted position and the movement from the retracted position to the coupling action position are guided by the guide means. It is possible to easily and reliably switch the position between the connecting operation position of the unit and the retracted position.

[First Embodiment]
1, 2, and 11 show a regenerative gas processing apparatus according to the present invention, and the interior of a housing 1 disposed in the upper part of the apparatus is partitioned by a partition wall 2 to form a room group of regenerator chambers 3 in plan view. Eight heat storage chambers 3 arranged in parallel are formed in the housing 1, and a switching device 4 for switching the air path communicating with each heat storage chamber 3 is disposed below the housing 1.

  Each heat storage chamber 3 accommodates a breathable packed layer 5 of a heat storage material 5 a, and the upper end of each heat storage chamber 3 is in open communication with a combustion chamber 6 formed in the upper part of the housing 1. It is equipped with a burner 7 as a combustion means.

  As shown in FIGS. 3 to 6, the switching device 4 includes a valve body 12 having a cylindrical air chamber 13 that receives the processed gas G ′ at the lower side thereof, and an air chamber 13 of the valve body 12. A switching valve body 11 for switching the air path installed in the upper part, and a substantially cylindrical distributor 10 in which eight supply / discharge chambers 8 having an annular arrangement in a plan view are formed by partition walls 9 are provided. The valve body 12 is fixedly attached to the upper part of the installation base 14 supported by the installation surface L, and the distributor 10 is arranged concentrically above the valve body 12 to be fixed to the valve body 12. Thereby, it is set as the structure arrange | positioned concentrically in order of "distributor 10-switching valve body 11-air chamber device 13" from upper direction.

  At the upper end of the distributor 10, eight air passage forming bodies 10 </ b> A are provided that open the supply / distribution chamber in the distributor 10 obliquely upward and obliquely about 45 degrees, and eight heat storage chambers 3. Are individually connected to each of the eight air passage forming bodies 10A through the supply / exhaust passage 15 and the eight heat storage chambers 3 are connected to each other via the air passage forming body 10A and the supply / exhaust passage 15. The lower end and the eight supply / discharge chambers 8 are individually communicated.

  The bottom plate 10a of the distributor 10 which also serves as the top plate of the valve body 12 has an annular arrangement in which eight fan-shaped supply / discharge ports 16 are individually positioned corresponding to the supply / discharge chambers 8 (that is, switching described later). The valve body 11 is arranged in the rotational direction), and the bottom plate 10a has an outer peripheral portion 17a, an inner peripheral portion 17b, and eight radial portions 17c on the lower surface of the bottom plate 10a. The distributor-side seal member 17 is attached. In addition, 16a is the cyclic | annular reinforcement part extended over the circumferential direction in the form which divides | segments each supply / exhaust port 16 into multiple (in this example, 3 pieces) by radial direction.

  A central chamber 18 for receiving the purge gas G ″ is formed in the central portion of the distributor 10 by a partition cylinder 19, and a purge gas discharge path 20 is communicated with the central chamber 18 from the upper end side of the distributor 10. I'm allowed.

  As shown in FIGS. 5 and 6, the switching valve body 11 built in the valve body 12 has a reverse truncated cone shape including a valve peripheral wall 21, a valve top plate 22, a valve bottom plate 23, and a vertical cylindrical rotating shaft 24. The valve top plate 22 is slidably contacted with the bottom plate 10a of the distributor 10 (strictly speaking, slidably contacted with the distributor-side seal member 17), and the valve bottom plate 23 is connected to the air chamber 13 ( Specifically, in the form of sliding contact with the upper end opening edge of the sliding contact portion 53 described later (strictly speaking, sliding contact with the annular air chamber side seal member 25 provided at the upper opening edge). The valve body 12 is rotated around the rotation axis P in the direction indicated by the arrow R in the figure.

  The valve top plate 22 of the switching valve body 11 is provided with a gas supply port 33 and a purge port 34 that are sequentially opposed to and communicated with the supply / discharge port 16 on the distributor 10 side as the switching valve body 11 rotates. And the treated gas discharge port 35 are arranged in this order from the upper rotation side of the switching valve body 11 and the same supply / discharge port 16 (strictly, the same supply / discharge port on the distributor 10 side). The communication port 37 for the air chamber is formed so as not to be opposed to and communicated at the same time with the valve bottom wall 23 and communicates with the inside of the air chamber 13. Is formed.

  The valve peripheral wall 21 of the switching valve body 11 is formed with a valve body communication port 38 that communicates with the switching valve body 11 in the valve body 12 and the internal space 12A around the air chamber 13. The cylindrical rotary shaft 24 whose upper end is located in the central chamber 18 of the distributor 10 is formed with a purge communication port 36 for communicating the internal space with a purge chamber 31 described later.

  In addition, 22a is an annular reinforcing portion that extends in the circumferential direction in a form in which each of the gas supply port 33 and the gas discharge port 35 to be processed is divided into a plurality (three in this example) in the radial direction. is there.

  Inside the switching valve body 11, a supply chamber 27 having a valve body communication port 38 formed in the valve peripheral wall 21 and a gas supply port 33 formed in the valve top plate 22 as chamber outlets and a valve bottom wall 23. A discharge chamber 28 having a communication port 37 for the air chamber formed in the above and a discharge port 35 for the processed gas formed in the valve top plate 22 as a chamber inlet / outlet, a vertical partition wall 26a, an upper vertical partition wall 26b, and a spiral shape And a purge chamber 31 having a purge communication port 36 formed on the cylindrical rotary shaft 24 and a purge port 34 formed on the valve top plate 22 as chamber outlets. A partition is formed by an intermediate bottom plate 26e and an upper vertical partition wall 26d formed at a location adjacent to the partition wall 26b. Reference numeral 32 denotes a reinforcing rib plate having a communication port 32a for indoor communication.

  In addition, the opening area of the communication port 37 for the air chamber device of the valve bottom wall 23 is ensured widely by dividing the inside of the switching valve body 11 into the supply chamber 27 and the discharge chamber 28 using the spiral partitioning inner floor 26c. Thus, the height of the valve body is shortened while ensuring high discharge efficiency.

  In this configuration, the gas supply path 39 for supplying the gas G to be processed is connected to the internal space 12A in the valve body 12, while the gas discharge path for discharging the processed gas G 'from the air chamber 13 is provided. 40 is connected to the air chamber 13 formed in the valve body 12.

  That is, in this heat storage type gas processing apparatus, as shown in FIG. 3, the valve 12 in the valve body 12 and the internal space 12 </ b> A around the air chamber 13 and the valve of the switch valve body 11 from the gas supply path 39. A gas to be treated G (for example, exhaust air from a painting booth containing an organic solvent) introduced into the supply chamber 27 of the switching valve body 11 through the valve body communication port 38 formed in the peripheral wall 21 is supplied to the valve body of the switching valve body 11. A gas supply port 33 formed in the plate 22, a supply / discharge port 16 on the distributor 10 side that communicates with the gas supply port 33, a supply / discharge chamber 8 that communicates with the supply / discharge port 16, and its supply Through a supply / exhaust passage 15 communicating with the exhaust chamber 8, it passes through a part of the heat storage chamber 3 to reach the combustion chamber 6, and in this combustion chamber 6, the pollutants and odorous substances in the gas G to be treated are treated by combustion. To do.

  Further, the treated gas G ′ is passed from the combustion chamber 6 to the other heat storage chamber 3 to store heat in the heat storage material 5 a accommodated in the heat storage chamber 3, and thereafter, the heat storage chamber 3 is connected to the heat storage chamber 3. A discharge path 15, a supply / discharge chamber 8 on the distributor 10 side communicating with the supply / discharge path 15, a supply / discharge port 16 communicating with the supply / discharge chamber 8, and a switching valve body 11 communicating oppositely with the supply / discharge port 16. Then, the gas is led to the discharge chamber 28 of the switching valve body 11 through the processed gas discharge port 35 on the side, and subsequently led out to the gas discharge path 40 through the air chamber communication port 37 and the air chamber 13.

  Further, as shown in FIG. 4, a part of the treated gas G ′ is passed as a purge gas G ″ from the combustion chamber 6 to the other heat storage chamber 3, and thereafter, the heat storage chamber 3 is continuously connected to the supply gas. The discharge path 15, the supply / discharge chamber 8 on the distributor 10 side that communicates with the supply / discharge path 15, the supply / discharge port 16 that communicates with the supply / discharge chamber, and the switching valve body 11 that communicates with the supply / discharge port 16 oppositely. The purge port 34 formed in the valve top plate 22 is led to the purge chamber 31 of the switching valve body 11, and subsequently, the purge communication port 36 formed in the cylindrical rotating shaft 24 of the switching valve body 11, the cylindrical rotation Through the inside of the shaft 24, a communication hole 24a formed at the upper end of the cylindrical rotating shaft 24, the central chamber 18 of the distributor 10 communicated with the communication hole 24a, and the purge gas discharge passage 20 connected to the central chamber 18 Merge with the processing gas G.

  Then, by rotating the switching valve body 11 in this process, the supply port 33, the purge port 34, and the discharge port 35 formed on the valve top plate 22 of the switching valve body 11 are connected to each other so as to face each other. By switching the exhaust port 16 in order, the heat storage chamber 3 through which the gas G to be processed passes, the heat storage chamber 3 through which the purge gas G ″ passes, and the heat storage chamber 3 through which the treated gas G ′ passes are sequentially switched. In the form of switching, each heat storage chamber 3 is sequentially switched to the passage state of the gas to be treated G, the passage state of the purge gas G ″, and the passage state of the treated gas G ′ in this order. The gas to be treated G is preheated in the process of passing through each heat storage chamber 3 by the heat storage material 5a that has previously stored heat by passing '.

  In addition, after passing the gas to be processed G, the purging gas G ″ (a part of the processed gas G ′) is allowed to pass through each heat storage chamber 3 before passing the processed gas G ′ next. The gas to be processed G remaining in the heat storage chamber 3 is discharged to the combustion chamber 6 before passing the next processed gas G ′, and then the gas to be processed G ′ passing through the heat storage chamber 3 is left to be processed. The gas G is prevented from being mixed.

  The rotating shaft X of the switching valve body is configured by detachably connecting a cylindrical rotating shaft 24 as a plurality of divided shaft portions and a connecting rotating shaft 41, and more specifically, above the interior of the air chamber 13. In the side portion, the connecting rotary shaft 41 is flanged to the lower end of the cylindrical rotary shaft 24 by fastening means such as bolts and nuts.

  Further, the upper end portion of the cylindrical rotating shaft 24 is supported by the distributor 10 via an upper bearing 46 that allows movement in the axial center P direction thereof, and is connected to the rotating shaft 41 connected to the cylindrical rotating shaft 24. And the lower part of the air chamber unit 13 fixed to the installation base 14 are allowed to slide in the direction of the axis P of the connecting rotary shaft 41, and through a gap between the air chamber unit 13 and the connecting rotary shaft 41. A lower bearing 47 provided with a seal member for preventing the treated gas G ′ from leaking to the outside is provided, whereby the movement of the switching valve body 11 in the direction of the axis P of the rotary shaft X is provided. Is configured freely.

  A drive unit 42 for rotating the switching valve body 11 is detachably disposed on the installation base 14 below the valve body 12, and the drive unit 42 is connected to the rotation shaft X of the switching valve body 11 with a bolt or the like. A drive rotating shaft 43 having a connecting flange portion 43a as a connecting portion that is detachably connected by a fastening means such as a nut (specifically, a flange joint), and a gas ( In this example, a balloon-shaped air spring mechanism 44 that also serves as a switching valve body urging means that presses and supports the switching valve body 11 on the approaching side (upper side) with respect to the rotation axis X of the switching valve body 11, and a drive rotation shaft 43. A ring-shaped cover body 49 that guides the displacement in the vertical direction of the drive rotation shaft 43 by restricting the displacement in the lateral direction of the drive rotation shaft 43 with respect to the air spring mechanism 44 while being fitted, and the drive rotation shaft 43 With the gear connection A reduction gear with a motor 45 for rotating the drive rotary shaft 43, are constituted by assembling against viewed rectangular framework 48 removably mounted by a fastening means such as bolts and nuts to the mounting base 14.

  That is, the drive unit 42 is connected to the rotating shaft X of the switching valve body 11 to rotate and act on the switching valve body 11 (specifically, a position below the rotating shaft X, FIG. 3 and FIG. 4). Display position) and a retracted position that allows the switching valve body 11 to move away from the counter-distributor 10 in a state in which the switching valve body 11 is disconnected from the rotational axis X (specifically, the rotational axis X). The position can be switched to a position deviated from the lower position of FIG. 12, the display position in FIG.

  The position switching of the drive unit 42 will be described in detail. From the connection position to the retracted position, the rotation shaft X of the switching valve body 11 and the drive are driven with the fastening between the installation base 14 and the frame 48 being released. The connection between the rotating shaft 42 and the connecting flange portion 43a is released, and the drive unit 42 below the rotating shaft X is pushed or pulled laterally along the device installation surface L to a position deviated from below the rotating shaft X. Switch by moving.

Further, the position switching from the retracted position to the coupling action position is performed by pushing or pulling the drive unit 42 laterally along the device installation surface L from a position deviated from below the rotation axis X. Switching is performed by moving the rotary shaft X downward and connecting the rotary shaft X of the switching valve body 11 and the connecting flange portion 43a of the drive rotary shaft 42.
The drive installation base 14 and the frame 48 may be fastened before or after the rotation shaft X and the connection flange portion 43a are connected.

  At the connecting position, the pressing force of the air spring mechanism 44 of the driving unit 42 is transmitted to the rotating shaft X of the switching valve body 11 via the driving rotating shaft 43, and the pressing force of the air spring mechanism 44 is transmitted to the air chamber. The drive unit 42 while urging the switching valve body 11 in the perspective direction (vertical direction in this example) with respect to the distributor 10 to the distributor 10 side in a non-acting state with respect to the distributor 13. The rotational force of the motor 45 with a reduction gear is transmitted to the rotation axis X of the switching valve body 11 by the drive rotating shaft 43, and the switching valve body 11 is surrounded by the arrow R in FIG. In the retracted position, the switching valve body 11 in a state where the lower part of the rotary shaft X is secured as a movable space of the rotary shaft X and the rotary shaft X enters the movable space. Movement to the anti-distributor 10 side Tolerated.

  In addition, at each of the lower surface corners (four corners in this example) of the frame 48 in the drive unit 42, the device installation surface L can be rolled along one direction (in this example, the longitudinal direction of the frame frame). A wheel 64 (an example of a guide means) is provided, and this rolling wheel is configured to guide the movement of the drive unit 42 between the coupling action position and the retracted position along the longitudinal direction of the frame frame.

  Although not shown, a pressure adjusting valve for adjusting the air supply pressure to the air spring mechanism 44 is interposed in the air supply path for supplying air to the air spring mechanism 44, and the air spring mechanism 44 is adjusted by adjusting the air supply pressure. By adjusting the expansion coefficient, the pressing force on the drive rotating shaft 43 can be adjusted.

  Further, the drive rotation shaft 43 including the connection flange portion 43a has an expansion coefficient of the air spring mechanism 44 as a support of the drive rotation shaft 43 in the state where the connection between the rotation shaft X and the connection flange portion 43a is released as described above. By adjusting, the displacement in the perspective direction with respect to the rotation axis X can be adjusted.

  The height dimension H of the top end of the connection flange portion 43a at the connection position from the device installation surface L is larger than the height dimension h1 of the telescopic wind tunnel 55 to be described later, and a cylindrical rotary shaft with respect to the upper bearing 46. 24 is configured to be larger than the insertion allowance h2 at the upper end, and when the drive unit 41 is switched to the retracted position by the height dimension H, the anti-distributor of the switching valve body 11 with respect to the distributor 10 A detachment movement to the 10 side (downward in this example) and a detachment movement of the connecting rotation shaft 41 to the anti-distributor 10 side (downward in this example) with respect to the cylindrical rotation shaft 24 are allowed.

  That is, when the drive unit 41 is moved to the retracted position, the switching valve body 11 is moved away by the distance H to move the distributor 10 and the switching valve body 11 apart by the distance H, and the gap In addition, it is possible to inspect the sliding contact portion through the upper bearing 46 by detaching the cylindrical rotary shaft 24 from the upper bearing 46 (see FIG. 13).

  Further, when the drive unit 42 is moved to the retracted position, the cylindrical rotary shaft 41 and the connected rotary shaft are moved away from each other by moving the connected rotary shaft 41 away from the cylindrical rotary shaft 24 by the distance H. The telescopic wind tunnel 55 can be exchanged through the gap after being separated by H (see FIG. 14).

  The air chamber 13 is divided into a cylindrical sliding contact portion 53 whose upper end opening edge is a sliding contact surface with respect to the switching valve body 11, and an air chamber main body 52 below the sliding contact portion 53, and these sliding contact portions. 53 and the air chamber main body 52 are covered with an annular air gap 55 between the sliding contact portion 53 and the air chamber main body 52 (that is, the sliding contact). The portion 53 and the air chamber main body 52 are connected in an airtight state or in a state of being kept substantially airtight).

  In addition, a plurality of spring units 51 (four in this example) as sliding contact portion biasing means for biasing the sliding contact portion 53 toward the switching valve body 11 are slidably contacted with the air chamber 13. Assembling equipment (specifically, assembling equipment in a state extending between the air chamber main body 52 and the sliding contact portion 53) is arranged around the portion 53 at equal intervals.

  As shown in FIGS. 7 to 10, a mounting hole for attaching a telescopic wind tunnel fixing bolt (not shown) to the outer peripheral surface of the substantially cylindrical upper wind tunnel holder 56 connected to the lower end of the sliding contact portion 53. A large number of 56a are formed at equal intervals in the circumferential direction, and a telescopic wind tunnel is fixed to the outer peripheral surface of the substantially cylindrical lower wind tunnel holding body 54 whose lower end is connected to the upper opening edge of the air chamber main body 52. A large number of mounting holes 54a for mounting bolts (not shown) are formed at equal intervals in the circumferential direction.

  Then, by fixing each of the upper and lower end portions of the telescopic wind tunnel 55 to the upper wind tunnel holding body 56 of the sliding contact portion 53 and the lower wind tunnel holding body 54 of the air chamber main body 52 with the telescopic wind tunnel fixing bolts, Due to the flexibility of the telescopic wind tunnel 55, the slidable contact portion 53 with respect to the air chamber body 52 with respect to the switching valve body 11 is within the height range of the telescopic wind tunnel 55 (in other words, within the length range in the axis P direction). It is configured to be displaceable in the perspective direction (in this example, the vertical direction).

  57A is a metal first reinforcing cylinder attached to the upper wind tunnel holding body 56 of the sliding contact portion 53 with the telescopic wind tunnel fixing bolt together with the upper end portion of the telescopic wind tunnel 55 in a state of being located inside the telescopic wind tunnel 55. 57B has an outer diameter that is slidable in the first reinforcing cylinder 57A while being fitted in the first reinforcing cylinder 57A, and the telescopic wind tunnel 55 is located inside the telescopic wind tunnel 55 with respect to the lower wind tunnel holding body 54 of the air chamber body 52. It is the metal 2nd reinforcement cylinder attached with the expansion-contraction wind tunnel fixing bolt with the lower end part.

  The first reinforcing cylinder 57A and the second reinforcing cylinder 57B are relative to each other so that at least a part of the second reinforcing cylinder 57B is always fitted in the first reinforcing cylinder 57A in the respective attachment states to the wind tunnel holding bodies 56 and 54. Displacement in a direction excluding the perspective direction with respect to the switching valve body 11 of the slidable contact portion 53 with respect to the air chamber main body 52, in this example, a direction orthogonal to the perspective direction (that is, the lateral direction). The displacement is controlled by the contact of the second reinforcing cylinder with the first reinforcing cylinder 57A attached to the sliding contact portion 53.

  Further, by disposing the first reinforcing cylinder 57A and the second reinforcing cylinder 57B inside the telescopic wind tunnel 55, the pressure difference inside and outside the telescopic wind tunnel 55 (the gas G to be treated outside the telescopic wind tunnel 55 and the processed gas inside the telescopic wind tunnel 55 has been processed). The inward movement of the telescopic wind tunnel 55, which is easily pressed inward by the pressure difference with the gas G ', is abutted and regulated, and the telescopic wind tunnel 55 deteriorates due to the tensile force in the surface direction generated in the telescopic wind tunnel 55 by the pressing force. Suppresses problems such as

  The second reinforcing cylinder 57 </ b> B constitutes a restricting means that regulates displacement of the sliding contact portion 53 in a direction other than the perspective direction with respect to the switching valve body 11 by contact with the sliding contact portion 53.

  The spring unit 51 serving as the slidable contact portion urging means has a plurality of (four in this example) lower flanges that project radially outward at equal intervals in the circumferential direction of the upper opening edge of the air chamber main body 52. A unit frame 58 that is bolt-connected (not shown) to the piece 52a, and is formed to project radially outward so as to face the lower flange piece 52a of the air chamber main body 52 at the upper opening edge of the sliding contact portion 53. A pair of compression coil springs 51 </ b> A are interposed between the pressing bodies 59 fitted to the lower surfaces of the plurality of upper flange pieces 53 a, and springs are attached to the air chamber main body 52 via the unit frame 58. The pressing body 59 is elastically pressed upward in a state where the lower end is fixedly supported (in other words, with the air chamber main body 52 as a reaction fulcrum via the unit frame 58), thereby the pressing body. 59 through sliding contact 3 are the structure for urging the upper side.

  The pressing body 59 includes a support piece 60 extending over the upper ends of the pair of compression coil springs 51 </ b> A, a pressing pin 61 inserted through an insertion hole 60 a formed in the center of the support piece 60, and the support body 60. It comprises a nut 62 for transmitting the transmitted pressing force of the compression coil spring 51A to the pressing pin 61, and a nut 63 for preventing the pressing pin 61 from coming off from the insertion hole 60a of the support piece 60.

  The pressing pin 61 is formed with a fitting projection with respect to the fitting recessed portion 54c formed on the lower surface of the upper flange piece 53a at the upper end, and has a thread groove for screwing the nuts 62 and 63 on the outer peripheral surface. It is formed over the entire length, whereby the position of the nut 62 with respect to the pressing pin 61 can be freely changed, and the urging force of the pressing pin 61 on the sliding contact portion 53 can be changed.

  That is, the spring unit 51 as the slidable contact portion urging means urges the slidable contact portion 53 of the air chamber 13 toward the switching valve body 11, and separately from this, as the switching valve body urging means. The air spring mechanism 44 urges the switching valve body 11 toward the distributor 10 in a state where the urging force is not applied to the air chamber 13 so that the sliding contact portion urging means and the switching valve body urging means are applied. By independently adjusting each of the above, an urging force to the sliding contact portion 53 for pressing the air chamber side seal member 25 and an urging force to the switching valve body 11 for pressing the distributor side seal member 17 are obtained. It can be adjusted individually.

  Then, by individually adjusting the urging force with respect to the sliding contact portion 53 and the switching valve body 11, an upper end opening edge of the air chamber device 13 (specifically, the sliding contact portion 53 between the air chamber device 13 and the switching valve body 11). The air chamber unit side seal member 25 is pressed against the valve bottom plate 23 of the switching valve body 11 with an appropriate force in such a manner that the air chamber unit side sealing member 25 is pressed by the sliding contact portion 53 to the air chamber unit 13. Between the internal space 12A of the valve body 12 and the air chamber 13 and the switching valve body 11 is prevented between the switch valve body 11 and the switching valve body 11, and the gas to be treated in the internal space 12A is prevented by this communication prevention. G and the treated gas G ′ in the air chamber 13 are effectively and reliably prevented from mixing, and the distributor provided on the bottom plate 10 a of the distributor 10 is between the distributor 10 and the switching valve body 11. The switching valve body 11 is configured such that the side seal member 17 is pressed by the switching valve body 11. A gas supply port 33 to be processed and a processed gas discharge port 35 through a gap between the bottom plate 10a of the distributor 10 and the valve top plate 22 of the switching valve body 11 are securely pressed against the valve top plate 22 with an appropriate force. Further, the mutual communication of the purge port 34 is blocked by the sliding contact of the distributor-side seal member 17 with respect to the valve top plate 22, and mixing of the gas G to be processed into the processed gas G 'due to the clearance communication is effectively and reliably performed. To prevent it.

Next, an inspection method for the regenerative gas processing apparatus will be described for each inspection item.
(A) Check the drive unit (see Fig. 12)
First, the air spring mechanism 44 is extended to displace the rotation axis X of the switching valve body 11 to the distributor 10 side as much as possible, and in this state, the upper end portion of the switching valve body 11 is temporarily suspended by a chain block or the like. Fix it.
Next, the connection between the drive rotation shaft 43 of the drive unit 42 and the rotation axis X (specifically, the connection rotation shaft 43) of the switching valve body 11 is released, and the air spring mechanism 44 is slowly contracted to connect the connection rotation shaft 41. And the drive rotation shaft 43 are separated from each other.

After that, the fastening between the installation base 14 and the frame 48 of the drive unit 42 is released, the drive unit 42 is pulled out from the installation base 14 along the longitudinal direction of the frame, the drive rotating shaft 43, the air spring mechanism 44, and the motor 45 with a speed reducer. Inspect and replace the cover body 49 and the like.
Then, when the inspection of the drive unit 42 is completed, the drive unit 42 is attached to the installation base 14 in a process reverse to the above process.

(B) Inspection and replacement of the sliding contact portion between the switching valve body 11 and the air chamber 13 and the air chamber side seal member 25 (not shown)
First, a temporary biasing means such as a jack for applying a pressing force upward with the air chamber main body 52 as a reaction force fulcrum is attached between the sliding contact portion 53 and the upper end surface of the air chamber main body 52, and the temporary attachment The spring unit 51 is removed while the sliding contact portion 53 is supported by the biasing means.
Next, the temporary biasing means is contracted and deformed to displace the sliding contact portion 53 downward, and the sliding contact portion 53 is separated from the switching valve body 11.
Thereafter, the sliding contact portion between the switching valve body 11 and the air chamber 13 through the sliding contact portion 53 and the switching valve body 11, and the air chamber side seal member 25 are inspected, and if necessary, The air chamber side seal member 25 is replaced.
When the inspection of the sliding contact portion between the switching valve body 11 and the air chamber 13 is completed, the sliding contact portion 53 is moved until the temporary biasing means is extended to bring the sliding contact portion 53 into sliding contact with the switching valve body 11. After displacing upward and attaching the spring unit 51, the temporary biasing means is removed. Note that the spring unit 51 may be inspected or replaced during this inspection.

(C) Inspection and replacement of the sliding contact portion between the distributor 10 and the switching valve body 11 and the distributor-side seal member 17 (see FIG. 13)
First, after the drive unit 42 is removed by the method described in (a) above, the spring unit 51 is removed by the method described in (b) above. (State of FIG. 13 (a))
Next, the lower wind tunnel holding body 54 is removed from the air chamber device 52, and the temporary suspension means for suspending and fixing the switching valve body 11 is operated to move the sliding contact portion 53 of the air chamber device 13 together with the telescopic wind tunnel 55 downward. The switching valve body 11 is disengaged and moved (downward) while being displaced to separate the distributor 10 and the switching valve body 11 (state shown in FIG. 13B).
Thereafter, the sliding contact portion between the distributor 10 and the switching valve body 11 and the distributor side seal member 17 are inspected between the distributor 10 and the switching valve body 11, and if necessary, the distributor side The seal member 17 is also replaced.
Then, when the inspection of the air chamber side seal member 25 is completed, the switching valve body 11 is slidably contacted with the distributor 10 in a process reverse to the above-described process, and the drive unit 42 is attached to the installation base 14.

(D) Inspection and replacement of telescopic wind tunnel 55 (see FIG. 14)
First, the drive unit 42 is removed by the method described in (a) above (state shown in FIG. 12).
Next, the fastening between the cylindrical rotary shaft 24 and the connection rotary shaft 41 of the switching valve body 11 is released, and the connection rotary shaft 41 is moved away from the cylindrical rotary shaft 24 to move the connection rotary shaft 41 and the cylindrical rotary shaft 24. Are separated (state shown in FIG. 14A).
Thereafter, the telescopic wind tunnel 55 is removed together with the upper wind tunnel holder 46 and the lower wind tunnel holder 44 from the sliding contact portion 53 and the air chamber body 52, and the gas discharge path 40 is connected between the connecting rotary shaft 41 and the cylindrical rotary shaft 24. Then, the telescopic wind tunnel 55 is inspected and replaced (see FIG. 14B).
When the inspection of the telescopic wind tunnel 55 is completed, the telescopic wind tunnel 55 is attached, the coupling rotary shaft 41 and the cylindrical rotary shaft 24 are fastened, and the drive unit 42 is attached to the installation base 14 in the reverse process to the above-described process. Do.

(E) Inspection of upper bearing 46 (not shown)
First, after the drive unit 42 is removed by the method described in (b) above, the spring unit 51 is removed by the method described in (b) above, and the sliding contact portion 53 of the air chamber 13 is displaced downward.
Next, the temporary suspension means for suspending and fixing the switching valve body 11 is operated to move the drive unit 42 away (downward) to remove the cylindrical rotary shaft 24 from the upper bearing 46, and in this state, the upper bearing 46. Inspect and replace.
When the inspection of the upper bearing 46 is completed, the cylindrical rotating shaft 24 is attached to the upper bearing 46 and the drive unit 42 is attached to the installation base 14 in the reverse process to the above-described process.

  In short, the regenerative gas processing apparatus of the present invention can easily carry out the inspection and replacement of the above-mentioned (a) to (e) without performing the work of removing the distributor 10 which requires a large work. In particular, the switching valve body 11 is allowed to move away from the distributor 10 side by switching the position of the drive unit 42 from the coupling operation position to the retracted position. The valve body 11 and the distributor 10 are separated from each other, and the sliding contact point is inspected and replaced between the switching valve body 11 and the distributor 12 (the inspection and replacement described in (c) above). It is possible to carry out the operation without performing work, and by allowing the disengagement movement of the connecting rotation shaft 41 with respect to the tubular rotation shaft 24 by switching the position thereof, the disengagement movement of the connection rotation shaft 41 and the cylindrical rotation shaft 24 can be performed. Communicating The rotating shaft 41 is separated, and the distributor 10 is removed by exchanging the telescopic wind tunnel 55 through the cylindrical rotating shaft 24 and the connecting rotating shaft 41 (inspection and replacement described in (d) above). It can be implemented without any problems.

[Another embodiment]
Next, another embodiment will be listed.

  In the above-described embodiment, a configuration in which the connecting flange portion 43a as the switching valve body connecting portion is displaced in the perspective direction with respect to the distributor 10 by displacing the drive rotating shaft 43 in the perspective direction with respect to the distributor 10 is taken as an example. As shown, for example, the switching valve body connecting portion may be displaced in the perspective direction with respect to the distributor 10 by expanding and contracting the drive rotation shaft 43 in the perspective direction with respect to the distributor 10.

  In the above-described embodiment, the configuration in which the drive rotary shaft 43 is displaced in the perspective direction with respect to the distributor 10 by the air spring mechanism 44 is shown as an example, but not limited thereto, the compression coil spring, the tension coil spring, the cylinder, the motor, The driving rotary shaft 43 may be displaced in the perspective direction with respect to the distributor 10 by an elastic body such as rubber.

  The specific structure of the drive unit 42 that rotates the switching valve body 11 is not limited to the configuration of the drive rotation shaft 41, the motor 45 with a speed reducer, the air spring mechanism 44, the cover body 49, and the frame 48 shown in the above-described embodiment. Various configuration changes are possible.

  In the above-described embodiment, by setting the allowable separation distance of the switching valve body 11 with respect to the distributor 10 to the distance H, in addition to checking the sliding contact area between the switching valve body 11 and the distributor 10, the sliding valve body 11 is installed at the sliding contact area. The distributor-side seal member 17 can be replaced. However, if the switching valve body 11 is detached from the distributor 10 and the sliding contact portion between the switching valve body 11 and the distributor 10 can be inspected, the allowable separation is possible. Any distance may be set.

  In the above-described embodiment, the rotation axis X of the switching valve body 11 has been illustrated as an example of the configuration in which the two split shaft portions (the cylindrical rotation shaft 24 and the connection rotation shaft 41) are detachably connected. The split shaft portions may be detachably connected, or the split shaft portions may not be connected but may be configured by only one shaft portion.

  In the above-described embodiment, the example in which the divided shaft portions constituting the rotation axis X of the switching valve body 11 are connected inside the air chamber 13 is shown. However, the connecting valve body 11 or the distributor 10 may be connected anywhere. You may make it the structure to carry out.

  In the above-described embodiment, the driving unit 41 is provided with the rolling wheels 63 capable of rolling the device installation surface L as guide means for guiding the driving unit 42 between the coupling action position and the retracted position. However, for example, the rolling wheel 63 is provided on the apparatus installation surface L, or a rail is passed between the connection operation position and the retraction position, and the rail is slid or slid on the rail. Various configuration changes can be made such as providing a moving rail receiver or a rolling wheel rolling on the rail in the drive unit 42, or providing an obstacle on the apparatus installation surface L for restricting the moving direction of the drive unit 42. Is possible.

  In the above-described embodiment, the gas supply path 39 for supplying the gas G to be processed is connected to the internal space 12A in the valve body 12 and the gas discharge path 40 for discharging the processed gas G ′ is provided in the valve body 12. However, in contrast to this, the gas supply path 39 is connected to the air chamber 13 formed in the valve body 12, and the treated gas G 'is connected. The gas discharge path 40 for discharging the gas may be connected to the internal space 12A in the valve body 12.

  In the above-described embodiment, the stretchable wind tunnel 55 is made of cloth having airtightness and flexibility. However, the stretchable wind tunnel 55 is not limited to cloth, but is an elastic body such as paper, sheet, rubber, or bellows-like shape. Various types of metals and resins can be used.

  In the above-described embodiment, the distributor 10 is provided with the distributor-side seal member 17 interposed between the distributor 10 and the switching valve body 11 as an example. It may be.

  In the above-described embodiment, the configuration in which the air chamber unit side seal member 25 interposed between the switching valve body 11 and the air chamber unit 13 is provided in the air chamber unit 13 is shown as an example. You may make it the structure equipped.

  In each of the above-described embodiments, the distributor 10 and the valve body 12 are arranged to be arranged in the vertical direction, but they may be arranged to be arranged in the horizontal direction or the oblique direction.

  The specific structure of the heat storage chamber 3 and the specific air path structure between the plurality of heat storage chambers 3 and the distributor 10 can be variously changed, and a gas supply path 39 that guides the gas G to be processed. , And the gas discharge passage 40 for guiding the processed gas G ′, the supply / discharge port 16 formed on the distributor 10 side, and the supply port 33 for the gas to be processed and the processed gas on the switching valve body 11 side which communicates with each other. The specific structures of the switching valve body 11 and the distributor 10 that sequentially communicate with the plurality of heat storage chambers 3 through the discharge outlet 35 are not limited to the structures shown in the above-described embodiments, and various configuration changes are possible.

  In parallel with the rotation of the switching valve body 11, the gas G to be processed is introduced from the gas supply path 39 to the switching valve body 11 and the processed gas G ′ is led from the switching valve body 11 to the gas discharge path 40. The structure is not limited to the structure of the air chamber 13 or the valve body 12 shown in the above-described embodiment, and various configuration changes can be made.

  The gas to be treated G is not limited to the exhaust gas of the painting equipment, but may be any gas as long as it can be treated by combustion in the combustion chamber 6, and the purpose of treatment is not limited to purification or deodorization. Absent.

  Further, the combustion means equipped in the combustion chamber 6 is not limited to the burner 7 and may be an electric heater or the like. Further, in each heat storage chamber 3, a catalyst is disposed on the combustion chamber 6 side of the heat storage material 5a. Alternatively, the gas to be processed G may be processed by catalytic combustion.

Side view of a regenerative gas processing apparatus according to the present invention Plan view sectional view in the heat storage chamber Side view sectional view of the switching device portion when the drive unit is in the coupling operation position Side view sectional view of the switching device portion when the drive unit is in the coupling operation position Exploded perspective view of the main part of the switching device Disassembled perspective view of switching valve body Side view sectional view of the main part of the switching device Disassembled perspective view of main parts of air chamber Side view sectional view of the main part of the switching device Spring unit perspective view Functional explanatory diagram of a regenerative gas processing apparatus according to the present invention Side view sectional view of the switching device when the drive unit is in the retracted position Schematic illustration showing the sliding contact location between the distributor and the switching valve body, the inspection of the distributor side seal member, and the replacement process Explanatory schematic diagram showing the inspection and replacement process of telescopic wind tunnel

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Heat storage chamber 5a Heat storage material 6 Combustion chamber 7 Combustion means 10 Distributor 11 Switching valve body 16 Supply / exhaust port 39 Gas supply path 40 Gas discharge path 42 Drive unit G Processed gas G 'Processed gas X Rotating shaft

Claims (5)

A plurality of heat storage chambers containing heat storage materials are provided, and one end of each heat storage chamber communicates with a combustion chamber provided with combustion means, and the other end of each heat storage chamber communicates individually with a plurality of supply / exhaust ports of the distributor Let
While maintaining the state where both the supply / exhaust port through which the gas to be processed introduced into the combustion chamber from the gas supply path passes and the supply / exhaust port through which the processed gas led out from the combustion chamber to the gas discharge path pass exist, A regenerative gas processing apparatus provided with a switching valve body that alternately switches each of the supply / exhaust ports between a gas passing state and a gas passing state by rotation in a sliding contact state with the distributor. ,
A connection operation position for connecting the drive unit for rotating the switching valve body to the rotation shaft of the switching valve body to rotate the switching valve body, and a state where the connection to the rotation shaft of the switching valve body is released The regenerative gas processing apparatus is configured such that the position of the switching valve body can be switched to a retracted position allowing the disengagement movement of the switching valve body to the counter distributor side.   2. The connecting portion of the drive unit with respect to the rotation shaft of the switching valve body is configured to be displaceable in a perspective direction with respect to the rotation shaft in a state where the connection of the drive unit with the rotation shaft of the switching valve body is released. Thermal storage gas processing device.   The regenerative gas processing apparatus according to claim 2, further comprising an air spring mechanism that presses the connecting portion of the drive unit toward the approaching side with respect to the rotation shaft with a gas pressure.   The regenerative gas processing apparatus according to any one of claims 1 to 3, wherein the rotating shaft of the switching valve body is configured by detachably connecting a plurality of divided shaft portions. The regenerative gas processing apparatus according to any one of claims 1 to 4, further comprising guide means for guiding the movement of the drive unit across the coupling action position and the retracted position.

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