Controller mounting structure

Abstract

This disclosure provides a controller mounting structure that can improve the maintainability of the controller in a small space. [Solution] The controller mounting structure of the present disclosure comprises a plurality of controllers for controlling a device, a bracket attached to the device, and a support member rotatably attached to the bracket, wherein the plurality of controllers are attached to the support member.

Description

Technical Field

[0001] The present invention relates to an attachment structure of a controller.

Background Art

[0002] Patent Document 1 discloses an absorption chiller in which a cloud adapter is connected to a controller, various chiller data acquired by a chiller control unit of the controller is sent to the cloud adapter, the cloud adapter acquires the chiller data sent from the cloud adapter, and based on this chiller data, determines a decrease in COP, analyzes the cause of the COP decrease, and takes measures to improve the COP.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present disclosure provides an attachment structure of a controller that can improve the maintenance workability of the controller in a small space.

Means for Solving the Problems

[0005] To achieve the above object, the attachment structure of the controller of the present disclosure includes a plurality of controllers for controlling a device, a bracket attached to the device, and a support member rotatably attached to the bracket, and the plurality of controllers are attached to the support member.

Effects of the Invention

[0006] According to the controller mounting structure of this disclosure, multiple controllers can be moved in any direction by rotating the support member. This allows for efficient maintenance of multiple controllers even when a large workspace cannot be secured. [Brief explanation of the drawing]

[0007] [Figure 1] Schematic diagram of an absorption chiller according to Embodiment 1 [Figure 2] A perspective view from below showing the controller mounting structure in Embodiment 1. [Figure 3] Perspective view showing the controller mounting structure in Embodiment 1 [Figure 4] A perspective view showing the adapter support member rotated, illustrating the controller mounting structure in Embodiment 1. [Modes for carrying out the invention]

[0008] (Knowledge and other information that formed the basis of the invention) At the time the inventors conceived of this disclosure, there was technology that involved connecting a cloud adapter to a controller, and the cloud adapter would then use the chiller data sent from the cloud adapter to determine if the COP (Coefficient of Performance) had decreased, analyze the cause of the decrease, and take measures to improve the COP. Furthermore, it was also necessary to connect a remote monitoring adapter to the controller to control the absorption chiller itself. However, in recent years, when installing multiple absorption chillers, it has become common practice to minimize the spacing between each chiller to secure installation space. Therefore, when performing maintenance on the cloud adapters and remote monitoring adapters connected to the controller, we discovered that the maintenance work was difficult due to factors such as the narrow spacing between absorption chillers and the different wiring layouts for each adapter. This led to the development of the subject matter of this disclosure in order to solve this problem. Therefore, this disclosure provides a controller mounting structure that can improve the maintainability of the controller in a small space.

[0009] The embodiments will be described in detail below with reference to the drawings. However, unnecessary details may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted. This is to avoid the following explanation becoming unnecessarily verbose and to facilitate understanding for those skilled in the art. The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims.

[0010] (Embodiment 1) Embodiment 1 will be described below with reference to the drawings. [1-1. Structure] [1-1-1. Configuration of an absorption chiller] One embodiment of the present invention will be described below with reference to the drawings. Figure 1 is a schematic diagram of the absorption chiller according to this embodiment. The absorption chiller 100 uses water as the refrigerant and an aqueous lithium bromide (LiBr) solution as the absorbent.

[0011] As shown in Figure 1, the absorption chiller 100 comprises an evaporator 1, an absorber 2 arranged in parallel with the evaporator 1, an evaporator-absorber body 3 housing the evaporator 1 and absorber 2, a high-temperature regenerator 5 equipped with a gas burner (heating means) 4, a low-temperature regenerator 6, a condenser 7 arranged in parallel with the low-temperature regenerator 6, and a low-temperature regenerator-condenser body 8 housing the low-temperature regenerator 6 and condenser 7. Furthermore, the absorption chiller 100 includes a low-temperature heat exchanger 12, a high-temperature heat exchanger 13, a refrigerant drain heat recovery unit 17, a dilute absorbent pump 45, a concentrated absorbent pump 47, and a refrigerant pump 48. These components are connected by piping via absorbent pipes 21-25 and refrigerant pipes 31-35, etc., to form a circulation path.

[0012] The evaporator 1 is provided with a chilled water pipe 14 for circulating and supplying brine, which has undergone heat exchange with the refrigerant within the evaporator 1, to a heat load (not shown) (for example, an air conditioning system). A heat transfer tube 14A, formed in part of this chilled water pipe 14, is located inside the evaporator 1. The absorber 2 and condenser 7 are provided with cooling water pipes 15 for sequentially circulating cooling water between them, and heat transfer tubes 15A and 15B, formed in a portion of these cooling water pipes 15, are positioned inside the absorber 2 and condenser 7, respectively.

[0013] The absorber 2 has the function of absorbing the refrigerant vapor evaporated in the evaporator 1 into the absorbent liquid, thereby maintaining a high vacuum pressure inside the evaporator absorber shell 3. A dilute absorbent liquid reservoir 2A is formed at the bottom of the absorber 2, where the dilute absorbent liquid, which has been diluted by absorbing the refrigerant vapor, accumulates. One end of a dilute absorbent liquid pipe 21, which has a dilute absorbent liquid pump 45, is connected to this dilute absorbent liquid reservoir 2A. The dilute absorbent liquid pipe 21 includes a branched dilute absorbent liquid pipe 21A that branches off downstream of the dilute absorbent liquid pump 45. This branched dilute absorbent liquid pipe 21A passes through the refrigerant drain heat recovery unit 17 and then rejoins the dilute absorbent liquid pipe 21 downstream of the low-temperature heat exchanger 12. The other end of this dilute absorbent liquid pipe 21 passes through the high-temperature heat exchanger 13 and then opens into the gas layer 5B located above the heat exchange section 5A formed in the high-temperature regenerator 5. The dilute absorbent pipe 21 branches off into a second branch pipe 21B downstream of the low-temperature heat exchanger 12, and the second branch pipe 21B opens into the low-temperature regenerator 6.

[0014] The high-temperature regenerator 5 is constructed by housing a gas burner 4 within a shell 60, and a heat exchange section 5A is formed above the gas burner 4 to heat and regenerate the absorbent liquid using the flame of the gas burner 4 as a heat source. An exhaust path 40 through which exhaust gas burned by the gas burner 4 flows is connected to this heat exchange section 5A, and an exhaust gas heat exchanger 41 is provided in this exhaust path 40. In addition, a gas pipe 61 to which fuel gas is supplied and an intake pipe 63 to which air from a blower 62 is supplied are connected to the gas burner 4, and control valves 64 for controlling the amount of fuel gas and air are provided in these gas pipe 61 and intake pipe 63.

[0015] On the side of the heat exchange section 5A, an intermediate absorption liquid reservoir 5C is formed in which the intermediate absorption liquid that has flowed out of the heat exchange section 5A after being heated and regenerated by the heat exchange section 5A accumulates. One end of a second intermediate absorption liquid pipe 23 is connected to the lower end of the intermediate absorption liquid reservoir 5C, and a high-temperature heat exchanger 13 is provided in the second intermediate absorption liquid pipe 23. This high-temperature heat exchanger 13 heats the absorption liquid flowing through the first intermediate absorption liquid pipe 22 with the heat of the high-temperature intermediate absorption liquid flowing out of the intermediate absorption liquid reservoir 5C, aiming to reduce the fuel consumption of the gas burner 4 in the high-temperature regenerator 5. The other end of the second intermediate absorption liquid pipe 23 is connected to a concentrated absorption liquid pipe 25 that connects the low-temperature regenerator 6 and the absorber 2. Also, the upstream side of the high-temperature heat exchanger 13 of the second intermediate absorption liquid pipe 23 and the absorber 2 are connected by an absorption liquid pipe 24 with an on-off valve V1 interposed therebetween.

[0016] The low-temperature regenerator 6 uses the refrigerant vapor separated by the high-temperature regenerator 5 as a heat source to heat and regenerate the absorption liquid accumulated in an absorption liquid reservoir 6A formed in the low-temperature regenerator 6. In the absorption liquid reservoir 6A, a heat transfer pipe 31A formed in a part of a refrigerant pipe 31 extending from the upper end of the high-temperature regenerator 5 to the bottom of the low-temperature regenerator 6 is arranged. By circulating refrigerant vapor through this refrigerant pipe 31, the heat of the refrigerant vapor is transmitted to the absorption liquid accumulated in the absorption liquid reservoir 6A through the heat transfer pipe 31A, and this absorption liquid is further concentrated. One end of the concentrated absorption liquid pipe 25 is connected to the absorption liquid reservoir 6A of the low-temperature regenerator 6, and the other end of this concentrated absorption liquid pipe 25 is connected to a concentrated liquid spreader 2C provided above the gas layer part 2B of the absorber 2. A concentrated absorption liquid pump 47 and a low-temperature heat exchanger 12 are provided in the concentrated absorption liquid pipe 25. This low-temperature heat exchanger 12 heats the dilute absorption liquid flowing through the dilute absorption liquid pipe 21 with the heat of the concentrated absorption liquid flowing out of the absorption liquid reservoir 6B of the low-temperature regenerator 6.

[0017] Also, a bypass pipe 27 that bypasses the concentrated absorption liquid pump 47 and the low-temperature heat exchanger 12 is provided in the concentrated absorption liquid pipe 25. If the concentrated absorbent pump 47 stops operating, the absorbent liquid accumulated in the absorbent liquid reservoir 6A of the low-temperature regenerator 6 is supplied into the absorber 2 through the concentrated absorbent liquid pipe 25 and the bypass pipe 27.

[0018] As described above, the gas phase 5B of the high-temperature regenerator 5 and the refrigerant liquid reservoir 7A formed at the bottom of the condenser 7 are connected by a refrigerant pipe 31. This refrigerant pipe 31 includes a heat transfer tube 31A and a refrigerant drain heat recovery unit 17 that are piped to the absorbent liquid reservoir 6A of the low-temperature regenerator 6. The upstream side of the heat transfer tube 31A of this refrigerant pipe 31 and the gas phase 2B of the absorber 2 are connected by a refrigerant pipe 32 with an on / off valve V2 interposed therein. Furthermore, one end of a refrigerant pipe 34, through which the refrigerant that has flowed out of the refrigerant liquid reservoir 7A of the condenser 7 flows, is connected to the refrigerant liquid reservoir 7A of the condenser 7, and the other end of this refrigerant pipe 34 is connected to the gas layer 1A of the evaporator 1 via a downwardly curved U-seal section 34A. Below the evaporator 1, a refrigerant reservoir 1B is formed where liquefied refrigerant accumulates. This refrigerant reservoir 1B and the sprayer 1C, located at the top of the gas layer 1A of the evaporator 1, are connected by a refrigerant pipe 35 with a refrigerant pump 48 in between.

[0019] Furthermore, the cooling water pipe 15 is equipped with a cooling water inlet temperature sensor 36 for detecting the temperature of the cooling water flowing through the cooling water pipe 15 on the inlet side, and a cooling water outlet temperature sensor 37 for detecting the temperature of the cooling water on the outlet side. The chilled water pipe 14 is equipped with a chilled water inlet temperature sensor 38 for detecting the temperature of the chilled water flowing through the chilled water pipe 14 at the inlet side, and a chilled water outlet temperature sensor 39 for detecting the temperature of the chilled water flowing through the outlet side.

[0020] Furthermore, the absorption chiller 100 of this embodiment is equipped with an extraction device 70, which includes a tank 71. An extraction pipe 52, which communicates with the gas layer 2B of the absorber 2, is connected to the top of the tank 71. A return pipe 73, which communicates with the lower part of the absorber 2, is connected to the bottom of the tank 71. In addition, an absorbent liquid pipe 75, which is connected to a dilute absorbent liquid pipe 21 via an ejector pump 74, is connected to the top of the tank 71. Then, by driving the ejector pump 74, the dilute absorbent liquid from the dilute absorbent liquid pipe 21 is drawn into the tank 71 via the absorbent liquid pipe 75. The dilute absorbent liquid flowing in through the absorbent liquid pipe 75 creates negative pressure inside the tank 71, which in turn guides not only the noncondensable gas stored at the top of the absorber 2, but also the refrigerant vapor and vaporized absorbent liquid, through the extraction pipe 72 to the top of the tank 51.

[0021] Of the gases introduced into tank 71, the refrigerant vapor and vaporized absorbent liquid dissolve into the absorbent liquid accumulated at the bottom of tank 71 and are absorbed. However, non-condensable gases cannot dissolve into the absorbent liquid and are therefore accumulated at the top of tank 71. The absorbent liquid accumulated at the bottom of tank 71 is then returned to the absorber 3 through the return pipe 73.

[0022] [1-1-2. Controller Configuration] Next, the configuration of the controller in Embodiment 1 will be described. Figure 2 is a perspective view from below showing the controller mounting structure in Embodiment 1. Figure 3 is a perspective view showing the controller mounting structure in Embodiment 1. Figure 4 is a perspective view showing the adapter support member in a rotated state, showing the controller mounting structure in Embodiment 1.

[0023] In this embodiment, an example will be described in which the controller referred to in this disclosure is the remote monitoring adapter 80 and the cloud adapter 81. The remote monitoring adapter 80 is a controller that primarily controls the absorption chiller 100 unit, while the cloud adapter 81 is a controller that primarily communicates with the cloud server.

[0024] As shown in Figure 2, the remote monitoring adapter 80 and the cloud adapter 81 are mounted below the main controller box 82, which houses electrical components such as the control board of the absorption chiller 100.

[0025] As shown in Figures 3 and 4, a mounting bracket 83 is provided on the lower surface of the main controller box 82. The mounting bracket 83 is formed in a roughly U-shape. A flat support bracket 84 is provided on the lower surface of the mounting bracket 83. The support bracket 84 extends in a direction substantially perpendicular to the mounting bracket 83, and is attached by fixing one end of the support bracket 84 to one side of the lower surface of the mounting bracket 83.

[0026] A roughly cylindrical wiring insertion member 85 is attached to the tip of the support bracket 84. A fixing bracket 86 is attached to the other side of the lower surface of the mounting bracket 83, extending approximately parallel to the support bracket 84. The bracket of this disclosure is comprised of these mounting brackets 83, support bracket 84, and fixing bracket 86.

[0027] An adapter support member 90 is attached to the support bracket 84. The adapter support member 90 is formed in a substantially L-shape, consisting of a top plate 91 and a side plate 92 extending downward from one end of the top plate 91. An auxiliary plate 93 is attached to the underside of the top plate 91, extending approximately parallel to the side plate 92. Adapter support plates 94 are attached to the middle and lower ends of the side plate 92 and auxiliary plate 93, respectively, extending approximately parallel to the top plate 91. An engagement hole 95 is formed at the other end of the upper plate 91 of the adapter support member 90, which engages with the wiring insertion member 85. As a result, the adapter support member 90 is mounted so as to be rotatable in a substantially horizontal plane around the wiring insertion member 85.

[0028] Furthermore, a bracket-side screw hole 87 is formed at the tip of the fixing bracket 86. A support-side screw hole 96 is formed in the upper plate 91 of the adapter support member 90 at a position corresponding to the bracket-side screw hole 87. The adapter support member 90 is positioned on the upper side of the fixing bracket 86, and the adapter support member 90 is fixed to the fixing bracket 86 by screwing screws 97 through the support-side screw holes 96 and the bracket-side screw holes 87. Then, by removing the screw 97, the adapter support member 90 is released from its fixation to the fixing bracket 86, and in this state, the adapter support member 90 is configured to rotate around the wiring insertion member 85.

[0029] A remote monitoring adapter 80 is attached to one adapter support plate 94 of the adapter support member 90. A cloud adapter 81 is attached to the other adapter support plate 94 of the adapter support member 90. The wiring 98 of the remote monitoring adapter 80 is pulled out from the bottom side of the remote monitoring adapter 80 and guided through the wiring insertion member 85 to the main controller box 82. The wiring 98 of the cloud adapter 81 is routed from the side of the cloud adapter 81 through the wiring insertion member 85 to the main controller box 82.

[0030] [1-2. Operation] [1-2-1. Operation of an absorption chiller] Next, the operation of the absorption chiller in this embodiment will be described. During cooling operations such as air conditioning, brine (e.g., chilled water) is circulated and supplied to a heat load (not shown) via the chilled water pipe 14.

[0031] Then, the dilute absorbent liquid from absorber 2 is heated by the dilute absorbent liquid pump 45 via the dilute absorbent liquid pipe 21, passing through the low-temperature heat exchanger 12 and the high-temperature heat exchanger 13 or the exhaust gas heat exchanger 41, and sent to the high-temperature regenerator 5. The absorbent liquid sent to the high-temperature regenerator 5 is heated by the flame from the gas burner 4 and the high-temperature combustion gas, causing the refrigerant in the absorbent liquid to evaporate and separate. The intermediate absorbent liquid, whose concentration has increased due to the evaporation and separation of the refrigerant in the high-temperature regenerator 5, is sent to the concentrated absorbent liquid pipe 25 via the high-temperature heat exchanger 13 and merges with the absorbent liquid that has passed through the low-temperature regenerator 6.

[0032] Meanwhile, the absorbent liquid sent to the low-temperature regenerator 6 is heated by the high-temperature refrigerant vapor supplied from the high-temperature regenerator 5 via the refrigerant pipe 31 and flowing into the heat transfer pipe 31A. Further refrigerant separation increases the concentration, and this concentrated absorbent liquid merges with the absorbent liquid that has passed through the high-temperature regenerator 5. The concentrated absorbent liquid pump 47 then sends it to the absorber 2 via the low-temperature heat exchanger 12, and it is sprayed from the concentrated liquid sprayer 2C.

[0033] The refrigerant separated and produced in the low-temperature regenerator 6 enters the condenser 7, condenses, and accumulates in the refrigerant liquid reservoir 7A. When a large amount of refrigerant liquid accumulates in the refrigerant liquid reservoir 7A, this refrigerant liquid flows out of the reservoir 7A, passes through the refrigerant pipe 34 into the evaporator 1, is pumped up by the operation of the refrigerant pump 48, and sprayed from the sprayer 1C onto the heat transfer tubes 14A of the chilled water pipe 14. The refrigerant liquid sprayed on the heat transfer tube 14A evaporates by absorbing heat of vaporization from the brine passing inside the heat transfer tube 14A, thus cooling the brine passing inside the heat transfer tube 14A. This cooled brine is then supplied to the heat load from the chilled water tube 14 to perform cooling operations such as air conditioning. The refrigerant evaporated in evaporator 1 then enters absorber 2, where it is absorbed by concentrated absorbent liquid supplied from low-temperature regenerator 6 and sprayed from above. This liquid accumulates in the dilute absorbent liquid reservoir 2A of absorber 2, and is then transported to high-temperature regenerator 5 by the dilute absorbent liquid pump 45, repeating the circulation process.

[0034] [1-2-2. Controller Operation] Next, we will explain the operation of the controller mounting structure. In normal use, as shown in Figure 3, the adapter support member 90 is fixed to the fixing bracket 86 by screwing screws 97 through the support-side screw holes 96 and the bracket-side screw holes 87 into the upper plate 91 of the adapter support member 90 and the fixing bracket 86. In this state, only the remote monitoring adapter 80 is visible from the outside of the absorption chiller 100.

[0035] When performing maintenance on the remote monitoring adapter 80 or the cloud adapter 81, first, the screws 97 of the fixing bracket 86 are removed to release the adapter support member 90 from the fixing bracket 86, and the adapter support member 90 is rotated around the wiring insertion member 85. In this configuration, the adapter support member 90 is rotated around the wiring insertion member 85, which helps to prevent the wiring 98 of the remote monitoring adapter 80 and the cloud adapter 81 from becoming entangled. As a result, as shown in Figure 4, the remote monitoring adapter 80 and the cloud adapter 81 become visible from the outside of the absorption chiller 100. Furthermore, by adjusting the rotational position of the adapter support member 90 to any desired position, the remote monitoring adapter 80 or the cloud adapter 81 can be made visible from the outside. In this state, perform maintenance on the remote monitoring adapter 80 or the cloud adapter 81.

[0036] [1-3. Effects, etc.] As described above, the controller mounting structure in Embodiment 1 comprises a remote monitoring adapter 80 and a cloud adapter 81 (multiple controllers) that control the absorption chiller 100 (device), a support bracket 84 (bracket) attached to the absorption chiller 100, and an adapter support member 90 (support member) that is rotatably attached to the support bracket 84, with the remote monitoring adapter 80 and the cloud adapter 81 attached to the adapter support member 90. According to this, by rotating the adapter support member 90, the remote monitoring adapter 80 and the cloud adapter 81 can be moved to any direction. This makes it possible to efficiently maintain the remote monitoring adapter 80 and the cloud adapter 81 even when the absorption chillers 100 are spaced close together and it is not possible to secure a large workspace.

[0037] Furthermore, in the first embodiment, the controller mounting structure is such that the bracket is provided with a wiring insertion member 85 for drawing out wiring 98 from the absorption chiller 100 (device), and the adapter support member 90 (support member) is configured to be rotatable around the wiring insertion member 85. According to this, a wiring insertion member 85 is provided on the bracket, and the adapter support member 90 is rotated around the wiring insertion member 85, thereby preventing the wiring 98 of the remote monitoring adapter 80 and the cloud adapter 81 from becoming entangled.

[0038] Furthermore, in the first embodiment, the controller mounting structure includes an adapter support member 90 (support member) comprising a top plate 91 that engages with a wiring insertion member 85, a side plate 92, and an adapter support plate 94 (support part) attached to the side plate 92, with the remote monitoring adapter 80 and cloud adapter 81 (multiple controllers) fixed to the adapter support plate 94. According to this, the remote monitoring adapter 80 and the cloud adapter 81 can be supported by an adapter support member 90 with a simple configuration.

[0039] Furthermore, in the first embodiment, the controller mounting structure is such that the support bracket 84 (bracket) is attached to the lower surface of the main controller box 82 of the absorption chiller 100. According to this, the space below the main controller box 82 of the absorption chiller 100 can be used to install the remote monitoring adapter 80 and the cloud adapter 81.

[0040] (Other embodiments) As described above, Embodiment 1 has been explained as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this and can be applied to embodiments that have been modified, replaced, added, or omitted. Furthermore, it is possible to create new embodiments by combining the components described in Embodiment 1 above.

[0041] Embodiment 1 described a case in which a remote monitoring adapter 80 and a cloud adapter 81 were used as multiple controllers, but this disclosure is not limited thereto. For example, the controller may be an optional add-on controller, such as a controller for fault diagnosis of the absorption chiller 100 or a controller for energy saving control. In addition, any controller with various functions that is connected to the main controller box 82 can be applied.

[0042] Furthermore, while Embodiment 1 described an example where the device is applied to an absorption chiller 100, the disclosure is not limited thereto. For example, even when multiple outdoor units are installed with a small gap between them in a large-scale air conditioning system, the disclosure can be applied to multiple controllers connected to the main controller box 82 of the outdoor units.

[0043] (Other embodiments) Embodiment 1 has been described as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this and can be applied to embodiments that have been modified, replaced, added, or omitted.

[0044] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0045] (Technical 1) A controller mounting structure comprising a plurality of controllers for controlling the device, a bracket attached to the device, and a support member rotatably attached to the bracket, wherein the plurality of controllers are attached to the support member. This configuration allows multiple controllers to be moved in any direction by rotating the support members. This enables efficient maintenance of multiple controllers even when a large workspace is not available.

[0046] (Technical 2) The mounting structure for the controller according to Technical 1, wherein the bracket is provided with a wiring insertion member for drawing out wiring from the device, and the support member is configured to be rotatable about the wiring insertion member. With this configuration, a wiring insertion member is provided on the bracket, and the support member rotates around the wiring insertion member, thus preventing the wiring of multiple controllers from becoming tangled.

[0047] (Technical 3) The controller mounting structure according to Technical 1 or Technical 2, wherein the support member comprises a top plate that engages with the wiring insertion member, a side plate, and a support portion attached to the side plate, and the plurality of controllers are fixed to the support portion. This configuration allows multiple controllers to be supported by a simple support member.

[0048] (Technical 4) The controller mounting structure according to any one of Technical 1 to 3, wherein the device is an absorption chiller, and the bracket is attached to the lower surface of the main controller box of the absorption chiller. With this configuration, the space below the main controller box of the absorption chiller can be used to install the remote monitoring adapter and the cloud adapter.

[0049] (Technical 5) A controller mounting structure according to any one of Technical 1 to 4, wherein the plurality of controllers are remote monitoring adapters and cloud adapters for the absorption chiller. This configuration allows for efficient maintenance of the remote monitoring adapter and cloud adapter, even when the installation space for the absorption chiller is limited and a large workspace cannot be secured. [Industrial applicability]

[0050] This disclosure is suitably applicable as a controller mounting structure that can improve the maintainability of the controller in a small space. [Explanation of Symbols]

[0051] 1. Evaporator 2 Absorbers 3 Absorber 4 Gas burners 5 High temperature regenerator 6 Low temperature regenerator 7. Condenser 12 Low temperature heat exchanger 13 High temperature heat exchanger 14 Cold water pipe 15 Cooling water pipe 17 Refrigerant drain heat recovery unit 21 Dilute Absorbent Liquid Tube 41 Exhaust gas heat exchanger 45. Dilute Absorption Solution Pump 46 Intermediate absorption fluid pump 47. Concentrated absorbent solution pump 48 Refrigerant pump 70. Extraction device 80 Remote Monitoring Adapters 81 Cloud Adapter 82 Main Controller Box 83 Mounting bracket 84 Support bracket 85 Wiring insertion member 86 Mounting bracket 87 Bracket side screw holes 90 Adapter support member 91 Top plate 92 Side plate 93 Auxiliary board 94 Adapter support plate 95 Engagement hole 96 Support side screw holes 98 Wiring 100 Absorption chillers

Claims

1. Multiple controllers that control the device, A bracket attached to the aforementioned device, The bracket comprises a support member that is rotatably attached to the bracket, Multiple controllers are attached to the support member. Controller mounting structure.

2. The bracket is provided with a wiring insertion member for drawing out wiring from the device. The support member is configured to be rotatable around the wiring insertion member. The controller mounting structure according to claim 1.

3. The support member comprises a top plate that engages with the wiring insertion member, a side plate, and a support portion attached to the side plate. The aforementioned multiple controllers are fixed to the support portion. The controller mounting structure according to claim 2.

4. The aforementioned device is an absorption chiller, The bracket is attached to the lower surface of the main controller box of the absorption chiller. The controller mounting structure according to claim 1.

5. The aforementioned multiple controllers are remote monitoring adapters and cloud adapters for the absorption chiller. The controller mounting structure according to claim 4.

Images