An autonomous controllable transformation device for reducing failure rate of DCS of thermal power unit

Abstract

The utility model relates to the technical field of fault autonomous controllable, disclose a kind of autonomous controllable reconstruction device for reducing the failure rate of thermal power generating unit DCS, including control cabinet, the front side of control cabinet is rotatably connected with two rotating doors, the inside of control cabinet is provided with cooling mechanism, the top of cooling mechanism is provided with clamping mechanism, the clamping mechanism is used to clamp electrical element, cooling mechanism includes two hollow partitions, the left and right sides of two hollow partitions are respectively fixedly connected on the inside of control cabinet upside and downside, the left and right sides of two hollow partitions are all through the inside left and right sides of control cabinet and fixedly connected with fixed plate. In the utility model, cooling liquid in water storage tank enters cooling pipe by water pump, returns to water storage tank by return pipe after absorbing heat, radiating fin radiates, cooperates with radiating groove and auxiliary radiating of rotating plate to realize efficient cooling, guarantee the temperature environment in control cabinet, reduce DCS failure.

Description

Technical Field

[0001] This utility model relates to the field of autonomous and controllable fault technology, and in particular to an autonomous and controllable retrofitting device for reducing the DCS fault rate of thermal power units. Background Technology

[0002] The DCS (Distributed Control System) of a thermal power unit is the core control hub of a thermal power plant. Through a distributed structure, it disperses control functions to multiple independent controllers, enabling real-time monitoring, logic control, and operation regulation of the boiler, turbine, and generator. It integrates data acquisition, process control, and sequential control functions, and can accurately regulate key indicators such as fuel supply, steam parameters, and power generation load. It not only ensures stable operation of the unit under rated conditions, but also flexibly adjusts output according to grid dispatching needs. At the same time, it reduces the risk of equipment anomalies through real-time diagnostics and early warning functions, and is the foundation for thermal power plants to achieve efficient, safe, and economical operation.

[0003] An independently controllable retrofit device for reducing the failure rate of DCS in thermal power units is an upgraded device developed with independently controllable technology as its core, targeting the potential faults exposed in the long-term operation of existing DCS. By optimizing the hardware architecture, embedding domestically produced redundant control algorithms, and integrating intelligent fault diagnosis modules, it can achieve status monitoring and proactive maintenance of key DCS components. It can trigger switching mechanisms or repair commands at the fault initiation stage, reducing the probability of failures caused by hardware aging, abnormal data transmission, and software logic conflicts from the source, while improving the system's ability to resist external interference and ensuring the continuity of control functions.

[0004] Existing DCS redundancy designs for thermal power units avoid unit shutdowns caused by single controller failures by synchronizing data in real time with primary and backup controllers and automatically switching in case of failure. However, the communication buses of existing devices mostly use a single physical link or half-duplex transmission mode. During operation, they need to continuously carry massive data interaction between primary and backup controllers and external device command transmission. When the bus load rate exceeds the threshold, the temperature will be too high. In high-temperature environments, components will age and gradually shift, leading to deviations in the execution of control commands, thereby increasing the risk of malfunction or failure to operate, making it difficult to meet the requirements for high-reliability operation. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an autonomous and controllable retrofit device to reduce the failure rate of DCS in thermal power units. It aims to improve the problem that in the existing technology, high-temperature environments cause components to age and gradually shift, leading to deviations in the execution of control commands.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an autonomous and controllable retrofit device for reducing the failure rate of DCS in thermal power units, including a control cabinet, two rotating doors rotatably connected to the front of the control cabinet, a cooling mechanism inside the control cabinet, and a clamping mechanism on the top of the cooling mechanism for clamping electrical components.

[0007] The cooling mechanism includes two hollow partitions. The left and right sides of the two hollow partitions are fixedly connected to the upper and lower sides of the control cabinet, respectively. The left and right sides of the two hollow partitions penetrate the left and right sides of the control cabinet and are fixedly connected to a fixing plate. Cooling pipes are fixedly connected inside the two hollow partitions. The right ends of the two cooling pipes penetrate the fixing plate and are connected to the same connecting pipe. A water tank is fixedly connected to the rear side of the control cabinet. Heat dissipation fins are fixedly connected to the rear side of the water tank. A water pump is fixedly connected to the top of the water tank. A water delivery pipe is connected to the right side of the water pump. The other end of the water delivery pipe penetrates the upper fixing plate and is connected to the other end of the corresponding cooling pipe.

[0008] As a further description of the above technical solution:

[0009] The clamping mechanism includes two crossbars, the bottoms of which are fixedly connected to the front and rear sides of the top of the hollow partition, respectively. Each of the two crossbars has a sliding groove at its top, and sliding blocks are slidably connected to the left and right sides of the interior of each sliding groove. Corresponding support plates are fixedly connected to the tops of multiple sliding blocks. Columns are fixedly connected to the front and rear sides of the top of each of the two support plates. Each column has a moving groove on one side, and moving blocks are slidably connected to the interior of each moving groove. A corresponding clamping plate is fixedly connected to one side of each moving block. Limiting components are provided on the front sides of the two front columns, and adjusting components are provided on the front sides of the front crossbar.

[0010] As a further description of the above technical solution:

[0011] The control cabinet also includes a return pipe, one end of which is connected to the left side of the water storage tank, and the other end of which passes through the lower fixing plate and is connected to one end of the corresponding cooling pipe. Heat dissipation components are provided on the left and right sides of the bottom of the control cabinet, and fixing components are provided on the rear side of the control cabinet.

[0012] As a further description of the above technical solution:

[0013] The heat dissipation assembly includes two heat dissipation slots, which are respectively opened on the bottom left and right sides of the control cabinet. Multiple rotating plates are rotatably connected inside the two heat dissipation slots.

[0014] As a further description of the above technical solution:

[0015] The fixing assembly includes a vertical plate, the front side of which is fixedly connected to the rear left end of the control cabinet. Connecting plates are fixedly connected to the upper and lower parts of the left side of the vertical plate. Fixing rings are fixedly connected to the left sides of the two connecting plates. Corresponding water supply pipes and return pipes pass through the inner sides of the two fixing rings respectively.

[0016] As a further description of the above technical solution:

[0017] The limiting assembly includes two limiting bolts, the rear ends of which are rotatably connected to the corresponding moving blocks, and multiple limiting holes are provided on the front sides of the two front columns.

[0018] As a further description of the above technical solution:

[0019] The adjustment assembly includes two adjustment blocks. The tops of the two adjustment blocks are fixedly connected to the bottom front end of the corresponding support plate. Multiple adjustment holes are opened on the front side of the front crossbar. Adjustment bolts are slidably connected to the front side of the two adjustment blocks. The rear ends of the two adjustment bolts pass through the corresponding adjustment blocks and are slidably connected to the interior of the corresponding adjustment holes.

[0020] As a further description of the above technical solution:

[0021] Each of the sliding blocks has a slider fixedly connected to its front and rear sides, and each of the crossbars has a groove on its front and rear sides.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the coolant in the water storage tank enters the upper cooling pipe through the water pump and water supply pipe, absorbs heat, and then goes to the lower cooling pipe through the connecting pipe to absorb heat again. It then returns to the water storage tank through the return pipe. The heat dissipation fins dissipate heat, and the heat dissipation groove and rotating plate assist in heat dissipation to achieve efficient cooling. At the same time, the fixing components stabilize the pipeline, ensuring a low temperature environment in the control cabinet and reducing DCS failures.

[0024] 2. In this utility model, the sliding block drives the support plate to adjust the lateral position along the sliding groove, the adjusting bolt passes through the adjusting block and is screwed into the adjusting hole for fixation, the moving block moves along the moving groove with the clamping plate to adjust the height, and the limiting bolt passes through the limiting hole for fixation, thereby realizing the stable clamping of electrical components of different sizes, ensuring component stability and reducing the risk of failure. Attached Figure Description

[0025] Figure 1 This is a perspective view of an autonomous and controllable retrofit device for reducing the DCS failure rate of thermal power units proposed in this utility model.

[0026] Figure 2This is a front view of an autonomous and controllable retrofit device for reducing the DCS failure rate of thermal power units, as proposed in this utility model.

[0027] Figure 3 The rear view of the structure of an autonomous and controllable retrofit device for reducing the DCS failure rate of thermal power units proposed in this utility model.

[0028] Figure 4 This is a structural exploded view of an autonomous and controllable retrofit device for reducing the DCS failure rate of thermal power units proposed in this utility model.

[0029] Figure 5 for Figure 4 Enlarged view of point A in the image.

[0030] Legend:

[0031] 1. Control cabinet; 2. Cooling mechanism; 201. Hollow partition; 202. Fixing plate; 203. Cooling pipe; 204. Connecting pipe; 205. Water tank; 206. Heat dissipation fins; 207. Water pump; 208. Water supply pipe; 209. Return pipe; 210. Heat dissipation assembly; 2101. Heat dissipation trough; 2102. Rotating plate; 211. Fixing assembly; 2111. Vertical plate; 2112. Connecting plate; 2113. Fixing ring; 3 1. Clamping mechanism; 301. Crossbar; 302. Sliding groove; 303. Sliding block; 304. Support plate; 305. Column; 306. Moving groove; 307. Moving block; 308. Clamping plate; 309. Limiting assembly; 3091. Limiting bolt; 3092. Limiting hole; 310. Adjusting assembly; 3101. Adjusting block; 3102. Adjusting hole; 3103. Adjusting bolt; 4. Rotating door; 5. Sliding block; 6. Sliding groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of an autonomous and controllable retrofit device for reducing the failure rate of DCS in thermal power units. The device includes a control cabinet 1, which provides installation space and protects internal components. Two rotating doors 4 are rotatably connected to the front of the control cabinet 1. The rotating doors 4 can be easily opened and closed for internal operation and maintenance. A cooling mechanism 2 is provided inside the control cabinet 1 to reduce the internal temperature of the control cabinet 1. A clamping mechanism 3 is provided on the top of the cooling mechanism 2 to fix electrical components and prevent them from shaking. The clamping mechanism 3 is used to clamp electrical components to avoid loosening of components and affecting operation.

[0034] The cooling mechanism 2 includes two hollow partitions 201. The hollow partitions 201 support the upper structure and assist in heat dissipation. The left and right sides of the two hollow partitions 201 are fixedly connected to the upper and lower sides of the control cabinet 1, respectively, enhancing the stability of the hollow partitions 201. Both hollow partitions 201 extend through the left and right sides of the control cabinet 1 and are fixedly connected to fixing plates 202. The fixing plates 202 fix the hollow partitions 201 and provide support for the piping. The interiors of both hollow partitions 201 are fixed... The control cabinet 1 is connected to a cooling pipe 203, which can absorb heat through the internal coolant. The right ends of the two cooling pipes 203 pass through the fixing plate 202 and are connected to the same connecting pipe 204. The connecting pipe 204 can make the two cooling pipes 203 form a passage. A water storage tank 205 is fixedly connected to the rear side of the control cabinet 1. The water storage tank 205 can store coolant. A heat dissipation fin 206 is fixedly connected to the rear side of the water storage tank 205. The heat dissipation fin 206 can accelerate the heat dissipation of the coolant in the water storage tank 205.

[0035] A water pump 207 is fixedly connected to the top of the water storage tank 205. The water pump 207 drives the coolant to circulate. A water supply pipe 208 is connected to the right side of the water pump 207, which can transport the coolant from the water pump 207 to the cooling pipe 203. The other end of the water supply pipe 208 passes through the upper fixing plate 202 and is connected to the other end of the corresponding cooling pipe 203, thus realizing the coolant transport path. The control cabinet 1 also includes a return pipe 209, which can return the coolant after heat absorption to the water storage tank 205. One end of the return pipe 209 is connected to the left side of the water storage tank 205, which can realize the return inlet of the coolant. The other end of the return pipe 209 passes through the lower fixing plate 202 and is connected to one end of the corresponding cooling pipe 203, which can form a complete coolant circulation loop. The bottom left and right sides of the control cabinet 1 are provided with heat dissipation components 210, which can assist the heat dissipation inside the control cabinet 1. The rear side of the control cabinet 1 is provided with fixing components 211, which can fix the water supply pipe 208 and the return pipe 209.

[0036] The heat dissipation assembly 210 includes two heat dissipation slots 2101, which provide air circulation channels. The two heat dissipation slots 2101 are respectively opened on the bottom left and right sides of the control cabinet 1, allowing heat to be dissipated from the bottom. Each of the two heat dissipation slots 2101 is rotatably connected to multiple rotating plates 2102. The rotating plates 2102 can adjust the opening size to balance heat dissipation and dust prevention.

[0037] The fixing component 211 includes a vertical plate 2111, which supports the connecting plate 2112. The front side of the vertical plate 2111 is fixedly connected to the rear left end of the control cabinet 1, which can fix the position of the vertical plate 2111. The upper and lower left sides of the vertical plate 2111 are fixedly connected to the connecting plate 2112. The connecting plate 2112 can connect the vertical plate 2111 and the fixing ring 2113. The left side of the two connecting plates 2112 is fixedly connected to the fixing ring 2113. The fixing ring 2113 can fit around the pipe to prevent it from shaking. The inner side of the two fixing rings 2113 is respectively penetrated by the corresponding water supply pipe 208 and return pipe 209, which can limit and fix the water supply pipe 208 and return pipe 209.

[0038] Specifically, in this self-controllable retrofit device for reducing the DCS failure rate of thermal power units, the control cabinet 1 serves as the overall installation base. Two rotating doors 4 on its front side can be flexibly opened and closed for easy internal operation and maintenance. The cooling mechanism 2 is the core heat dissipation component. Two hollow partitions 201 are fixed to the upper and lower sides of the control cabinet 1 on the left and right sides, penetrating the left and right sides of the control cabinet 1 and connecting to the fixing plate 202, forming a heat dissipation frame. The cooling pipes 203 inside the hollow partitions 201 serve as heat exchange channels. The right ends of the two cooling pipes 203 are connected by a connecting pipe 204 to form a series circuit. The water tank 205 at the rear of the control cabinet 1 stores coolant, and the heat dissipation fins 206 behind it dissipate heat to the outside. The water pump 207 at the top of the water tank 205 provides power for coolant circulation. The water delivery pipe... 208 delivers coolant from water pump 207 to upper cooling pipe 203, while return pipe 209 returns the cooled coolant after heat absorption to water tank 205, achieving coolant circulation and cooling. In the heat dissipation components 210 on the left and right sides of the bottom of control cabinet 1, two heat dissipation slots 2101 provide air circulation channels. Multiple rotating plates 2102 connected internally can be adjusted in angle to balance heat dissipation and dust prevention. In the fixing component 211 on the rear side of control cabinet 1, the upright plate 2111 is fixed to the left rear side of control cabinet 1. The connecting plates 2112 on the upper and lower parts of its left side limit and fix the water supply pipe 208 and return pipe 209 respectively through fixing rings 2113 to prevent the pipes from falling off due to vibration. The clamping mechanism 3 is used to firmly clamp electrical components. Through the coordinated action of various components, the failure rate of DCS is reduced from both heat dissipation and fixing aspects.

[0039] Reference Figure 2 , Figure 4 and Figure 5The clamping mechanism 3 includes two crossbars 301, which serve as the basic support components of the clamping mechanism 3. The bottoms of the two crossbars 301 are fixedly connected to the front and rear sides of the top of the hollow partition 201, respectively, so that the crossbars 301 can be stably installed on the hollow partition 201. The top of each of the two crossbars 301 is provided with a sliding groove 302, which provides a sliding track for the sliding block 303. The left and right sides of the interior of the two sliding grooves 302 are slidably connected to the sliding blocks 303, which can move along the sliding grooves 302 to adjust their positions. The tops of the multiple sliding blocks 303 are respectively fixedly connected to corresponding support plates 304, which can drive the support plates 304 to move synchronously. The front and rear sides of the tops of the two support plates 304 are fixedly connected to... There are columns 305, which can support and clamp related components. Each of the columns 305 has a moving groove 306 on one side, which can provide a path for the moving block 307 to move up and down. The moving block 307 is slidably connected inside the moving groove 306. The moving block 307 can drive the clamping plate 308 to adjust its height. Each of the moving blocks 307 has a corresponding clamping plate 308 fixedly connected to one side. The clamping plate 308 can directly contact and clamp electrical components. The front of the two front columns 305 is provided with a limit component 309, which can fix the position of the moving block 307. The front of the front crossbar 301 is provided with an adjustment component 310, which can fix the position of the support plate 304.

[0040] The limiting assembly 309 includes two limiting bolts 3091. The limiting bolts 3091 can be screwed into the limiting holes 3092 to fix the moving block 307. The rear ends of the two limiting bolts 3091 are rotatably connected to the corresponding moving block 307, so that the limiting bolts 3091 can move with the moving block 307 and be fixed. The front sides of the two front columns 305 are provided with multiple limiting holes 3092. The limiting holes 3092 can cooperate with the limiting bolts 3091 to achieve fixing at different heights.

[0041] The adjustment assembly 310 includes two adjustment blocks 3101. The adjustment blocks 3101 can be connected to the support plate 304 and the adjustment bolts 3103. The tops of the two adjustment blocks 3101 are respectively fixedly connected to the bottom front end of the corresponding support plate 304 and can move synchronously with the support plate 304. The front side of the front crossbar 301 has multiple adjustment holes 3102. The adjustment holes 3102 can be used with the adjustment bolts 3103 to fix different lateral positions. The front side of the two adjustment blocks 3101 is slidably connected with the adjustment bolts 3103. The adjustment bolts 3103 can be screwed into the adjustment holes 3102 to fix the adjustment blocks 3101. The rear ends of the two adjustment bolts 3103 pass through the corresponding adjustment blocks 3101 and are slidably connected to the interior of the corresponding adjustment holes 3102, so as to fix the adjustment blocks 3101 and the crossbar 301.

[0042] Specifically, in the clamping mechanism 3, the bottoms of the two crossbars 301 are fixedly connected to the front and rear sides of the top of the hollow partition 201, providing a stable mounting base for the entire clamping mechanism 3. The sliding grooves 302 opened at the top of the two crossbars 301 provide a track for the movement of the sliding blocks 303, allowing the sliding blocks 303 to slide left and right inside them. The tops of the multiple sliding blocks 303 are fixedly connected to corresponding support plates 304. The sliding of the sliding blocks 303 can drive the support plates 304 to move synchronously, thereby adjusting the position of the support plates 304. The columns 305 fixedly connected to the front and rear sides of the top of the plate 304 serve to support and install other components. Movable slots 306 on one side of the multiple columns 305 provide a path for the vertical movement of the movable blocks 307. The movable blocks 307, slidably connected inside the multiple movable slots 306, have corresponding clamping plates 308 fixedly connected to one side. The movement of the movable blocks 307 can drive the clamping plates 308 to move vertically, facilitating adjustment of the height of the clamping plates 308 to accommodate electrical components of different thicknesses. Limiting components 309 are provided on the front sides of the two front columns 305. The rear ends of the two limiting bolts 3091 are rotatably connected to the corresponding moving blocks 307. Multiple limiting holes 3092 are opened on the front sides of the two front columns 305. After the clamping plate 308 is adjusted to a suitable height, the limiting bolts 3091 are passed through the corresponding limiting holes 3092 and tightened to fix the position of the moving blocks 307 and the clamping plate 308, preventing them from loosening. In the adjusting assembly 310 set on the front side of the front crossbar 301, the tops of the two adjusting blocks 3101 are respectively fixedly connected to the bottom front end of the corresponding support plate 304. Multiple adjustment holes 3102 are provided. The rear ends of the adjustment bolts 3103 that are slidably connected to the front of the two adjustment blocks 3101 pass through the corresponding adjustment blocks 3101 and are slidably connected to the interior of the corresponding adjustment holes 3102. When the support plate 304 is adjusted to a suitable position, the adjustment bolts 3103 are screwed into the corresponding adjustment holes 3102 to fix the position of the support plate 304, thereby fixing the lateral position of the electrical components. Through the synergistic action of these components, the clamping mechanism 3 can firmly clamp electrical components of different specifications, reducing DCS failures caused by component loosening.

[0043] Reference Figure 5 Multiple sliding blocks 303 are fixedly connected to sliders 5 on their front and rear sides. The sliders 5 can enhance the connection stability between the sliding blocks 303 and the crossbar 301. Multiple crossbars 301 have grooves 6 on their front and rear sides. The grooves 6 can provide a sliding path for the sliders 5. The sliders 5 and the grooves 6 cooperate to limit the sliding direction of the sliding blocks 303 and prevent the sliding blocks 303 from shifting in the grooves 302. The sliders 5 are embedded in the grooves 6, which can reduce the shaking of the sliding blocks 303 when sliding and improve the smoothness of the movement of the sliding blocks 303, thereby ensuring the accuracy of the position adjustment of the support plate 304.

[0044] Specifically, the slider 5 slides within the groove 6, which enhances the tightness of the connection between the slider block 303 and the crossbar 301, prevents the slider block 303 from falling out of the groove 302, and improves the structural stability of the entire clamping mechanism 3.

[0045] Working principle: When the internal component temperature is too high, the coolant in the water tank 205 at the rear of the control cabinet 1 is drawn by the water pump 207 and transported to the upper cooling pipe 203 via the water pipe 208. The coolant flows along the upper cooling pipe 203, absorbs heat from the control cabinet 1 through the hollow partition 201, and then enters the lower cooling pipe 203 through the connecting pipe 204 to continue absorbing heat from the area below. The coolant that has completed heat absorption flows back to the water tank 205 through the return pipe 209. The heat dissipation fins 206 at the rear of the water tank 205 quickly dissipate the heat to the outside, achieving the cooling effect. The cooling system is circulated and cooled. The heat dissipation component 210 at the bottom of the control cabinet 1 further enhances the heat dissipation effect. The two heat dissipation slots 2101 provide channels for air circulation. The multiple rotating plates 2102 inside can be rotated and adjusted according to the heat dissipation requirements. This ensures air exchange between the inside and outside of the control cabinet 1 and prevents a large amount of dust from entering. At the same time, the upright plate 2111 in the fixing component 211 is fixed to the left rear side of the control cabinet 1. The connecting plates 2112 at its upper and lower parts limit and fix the water supply pipe 208 and the return pipe 209 respectively through the fixing rings 2113 to prevent the pipes from falling off due to vibration and ensure the stable operation of the water circulation system.

[0046] Furthermore, the sliding groove 302 at the top of the crossbar 301 provides a track for lateral adjustment. The sliding blocks 303 on the left and right sides inside can slide along the groove, driving the top support plate 304 to change its lateral position. Two adjusting blocks 3101 are fixed to the bottom front end of the support plate 304. After moving the support plate 304 to a suitable position, the adjusting bolts 3103 are passed through the adjusting blocks 3101 and screwed into the corresponding adjusting holes 3102 to fix the lateral spacing of the support plate 304, accommodating electrical components of different widths. The columns 305 on the front and rear sides of the top of the support plate 304 are... The longitudinal clamping provides support. A movable block 307 is provided in the movable groove 306 on one side of the column 305. The clamping plate 308 connected to one side of the movable block 307 can slide up and down with the movable block 307 to adjust the clamping height. After the movable block 307 drives the clamping plate 308 to adjust to the position of the component surface, the limiting bolt 3091 is inserted from the limiting hole 3092 on the front side of the column 305 and connected to the movable block 307. The position of the movable block 307 is fixed by tightening the bolt, so that the clamping plate 308 fits tightly against the component, which can be adapted to electrical components of different sizes.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An autonomous controllable retrofit device for reducing the failure rate of DCS of thermal power units, comprising a control cabinet (1), characterized in that: The front side of the control cabinet (1) is rotatably connected to two rotating doors (4). The inside of the control cabinet (1) is provided with a cooling mechanism (2). The top of the cooling mechanism (2) is provided with a clamping mechanism (3). The clamping mechanism (3) is used to clamp electrical components. The cooling mechanism (2) includes two hollow partitions (201). The left and right sides of the two hollow partitions (201) are fixedly connected to the upper and lower sides of the inside of the control cabinet (1), respectively. The left and right sides of the two hollow partitions (201) penetrate the left and right sides of the inside of the control cabinet (1) and are fixedly connected to a fixing plate (202). Cooling pipes (203) are fixedly connected inside the two hollow partitions (201), and the right ends of the two cooling pipes (203) penetrate the fixing plate (202). The control cabinet (1) is connected to the same connecting pipe (204). A water storage tank (205) is fixedly connected to the rear side of the control cabinet (1). A heat dissipation fin (206) is fixedly connected to the rear side of the water storage tank (205). A water pump (207) is fixedly connected to the top of the water storage tank (205). A water supply pipe (208) is connected to the right side of the water pump (207). The other end of the water supply pipe (208) passes through the upper fixing plate (202) and is connected to the other end of the corresponding cooling pipe (203).

2. The self-controllable retrofit device for reducing the failure rate of DCS of a thermal power unit according to claim 1, characterized in that: The clamping mechanism (3) includes two crossbars (301). The bottoms of the two crossbars (301) are fixedly connected to the front and rear sides of the top of the hollow partition (201), respectively. Each of the two crossbars (301) has a sliding groove (302) at its top. Sliding blocks (303) are slidably connected to the left and right sides of the interior of each sliding groove (302). Corresponding support plates (304) are fixedly connected to the tops of the multiple sliding blocks (303). The two support plates (304) have... The top front and rear sides are fixedly connected with columns (305), and each of the columns (305) has a moving groove (306) on one side. Each of the moving grooves (306) has a moving block (307) slidably connected inside. Each of the moving blocks (307) has a corresponding clamping plate (308) fixedly connected to one side. The front of the two front columns (305) is provided with a limit component (309), and the front of the front crossbar (301) is provided with an adjustment component (310).

3. The self-controllable retrofit device for reducing the failure rate of DCS of a thermal power unit according to claim 1, characterized in that: The control cabinet (1) also includes a return pipe (209), one end of which is connected to the left side of the water storage tank (205), and the other end of which passes through the lower fixing plate (202) and is connected to one end of the corresponding cooling pipe (203). Heat dissipation components (210) are provided on the left and right sides of the bottom of the control cabinet (1), and fixing components (211) are provided on the rear side of the control cabinet (1).

4. The self-controllable retrofit device for reducing the failure rate of DCS of a thermal power unit according to claim 3, characterized in that: The heat dissipation assembly (210) includes two heat dissipation slots (2101), which are respectively opened on the bottom left and right sides of the control cabinet (1). Multiple rotating plates (2102) are rotatably connected inside the two heat dissipation slots (2101).

5. The autonomous and controllable retrofitting device for reducing the DCS failure rate of thermal power units according to claim 3, characterized in that: The fixing component (211) includes a vertical plate (2111), the front side of which is fixedly connected to the rear left end of the control cabinet (1). The upper and lower parts of the left side of the vertical plate (2111) are fixedly connected to connecting plates (2112), and the left sides of the two connecting plates (2112) are fixedly connected to fixing rings (2113). The inner sides of the two fixing rings (2113) are respectively penetrated by corresponding water supply pipes (208) and return pipes (209).

6. The self-controllable retrofit device for reducing the failure rate of DCS of a thermal power unit according to claim 2, characterized in that: The limiting component (309) includes two limiting bolts (3091), the rear ends of the two limiting bolts (3091) are rotatably connected to the corresponding moving blocks (307), and the front sides of the two columns (305) are provided with multiple limiting holes (3092).

7. The self-controllable retrofit device for reducing the failure rate of DCS of a thermal power unit according to claim 2, characterized in that: The adjustment assembly (310) includes two adjustment blocks (3101). The tops of the two adjustment blocks (3101) are fixedly connected to the bottom front end of the corresponding support plate (304). The front side of the crossbar (301) is provided with multiple adjustment holes (3102). The front side of each of the two adjustment blocks (3101) is slidably connected with an adjustment bolt (3103). The rear ends of the two adjustment bolts (3103) pass through the corresponding adjustment block (3101) and are slidably connected to the interior of the corresponding adjustment hole (3102).

8. The autonomous and controllable retrofitting device for reducing the DCS failure rate of thermal power units according to claim 2, characterized in that: Each of the sliding blocks (303) has a slider (5) fixedly connected to its front and rear sides, and each of the crossbars (301) has a groove (6) opened on its front and rear sides.

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