Variable pressure difference monitoring control device of air conditioner circulating water system

Abstract

The utility model relates to the technical field of air conditioner circulating water systems, and discloses an air conditioner circulating water system variable pressure difference monitoring control device which comprises a circulating pump, the output end of the circulating pump is communicated with a water conveying pipe, the other end of the water conveying pipe is communicated with a water distribution box, and the front side of the water distribution box is communicated with a plurality of branch pipes. The top of each branch pipe is fixedly connected with an adjusting valve, the middle of each adjusting valve communicates with air conditioning equipment, the other end of each adjusting valve communicates with a water collecting pipe, the top of each water collecting pipe communicates with a water injection opening, and a filter box is arranged in the middle of each water collecting pipe. According to the water circulation device, the water flow is adjusted through the adjusting valve according to actual requirements, water flows into the circulating pump after being filtered by the filter box in the flowing process, the filter box is connected with the collecting pipe through the connector and the connecting ring and is convenient to disassemble, and therefore impurities in the water are filtered out while water circulation is achieved, the operation efficiency of the device is improved, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning circulating water system technology, and in particular to a differential pressure monitoring and control device for air conditioning circulating water system. Background Technology

[0002] An air conditioning circulating water system uses water as a medium to transfer heat, achieving cooling or heating functions. It is a circulating device that ensures the normal operation of the air conditioning system. A fixed-frequency water pump is used to maintain a certain pressure difference, allowing water to circulate in the system. However, changes in the number of air conditioners being turned on will cause changes in the water circulation speed, resulting in changes in the pressure difference across the circulating pump. Traditional fixed pressure difference methods cannot be adjusted according to actual load changes, leading to energy waste. Under partial load, excessive pressure may occur, affecting the stability and comfort of the system. In order to keep the pressure difference across the circulating pump within the set value, a variable pressure difference monitoring and control device for air conditioning circulating water systems is needed.

[0003] A search revealed Chinese patent publication number CN220892537U, which discloses an air conditioning unit circulating water system, including a first pipeline, a second pipeline, a third pipeline, an air conditioning unit heat exchanger, a differential pressure control device, a first flow control device, a mixing pump, and a temperature detection device. Traditional air conditioning unit circulating water systems directly connect the air conditioning unit heat exchanger to the air conditioning chilled water pipeline. The inlet water flow rate and temperature of the air conditioning unit heat exchanger fluctuate due to the influence of the air conditioning chilled water pipeline, causing fluctuations in the air supply temperature of the air conditioning unit heat exchanger and preventing the air-conditioned area from achieving high-temperature performance. The device features precise temperature control, employing a combination of differential pressure control, primary flow control, and temperature detection to maintain a constant water supply temperature for the air conditioning unit. This enables high-precision control of the water supply temperature and flow rate, providing the necessary conditions for high-precision air supply temperature control. However, the device cannot filter impurities in the water during operation. Impurities and scale generated during prolonged water circulation cannot be cleaned, affecting the efficiency of the circulation system and increasing energy consumption. Furthermore, the lack of an automatic pressure regulating device reduces the device's practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a differential pressure monitoring and control device for an air conditioning circulating water system. It aims to improve the existing technology where the device cannot filter the water in the pipeline, and the scale generated during long-term water circulation cannot be cleaned, which affects the working efficiency of the circulation system, leads to increased energy consumption, and is not equipped with an automatic pressure regulating device, which reduces the practicality of the device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a differential pressure monitoring and control device for an air conditioning circulating water system, comprising a circulating pump, the output end of which is connected to a water supply pipe, the other end of which is connected to a water distribution tank, the front side of which is connected to multiple branch pipes, the top of which is fixedly connected to a regulating valve, the middle of which is connected to an air conditioning unit, the other end of which is connected to a water collection pipe, the top of which is connected to a water inlet, and a filter box installed in the middle of which... The inner walls of the filter box are slidably connected to connectors on both the upper and lower sides. Connecting rings are rotatably connected to the opposite sides of the two connectors. Both connecting rings are threadedly connected to the water collection pipe. A flow divider is fixedly connected to the top of the inner wall of the filter box. A filter screen is fixedly connected to the middle of the inner wall of the filter box. Filter cotton is fixedly connected to the bottom of the inner wall of the filter box. The other end of the water collection pipe is connected to the circulation pump. An electric valve is fixedly connected to the middle of the outer wall of the water collection pipe. A cooler is connected to both the left and right sides of the water collection pipe. A control mechanism is provided on the front side of the circulation pump.

[0006] The above technical solution involves controlling the water flow in each branch pipe according to the start and stop of the air conditioning equipment using a distribution box and regulating valve. Multiple branch pipes can simultaneously supply water to multiple air conditioning units. The filter box is connected to the water collection pipe using connecting rings and connectors, making it easy to disassemble and clean. The filter plates and filter cotton inside the filter box filter impurities in the water. An electric valve is used to control the flow rate of water in the circulation system, making it easy to adapt to different working conditions.

[0007] As a further description of the above technical solution:

[0008] The control mechanism includes a mounting plate, which is fixedly connected to the top of the water distribution tank. A data acquisition module is fixedly connected to the top left side of the mounting plate, and a communication module is fixedly connected to the top center of the mounting plate. A central processing unit is threadedly connected to the top right side of the mounting plate, and an actuator is fixedly connected to the top of the central processing unit. A pressure sensor is provided on the left side of the circulation pump and is connected to the water collection pipe. A pressure sensor is provided on the front side of the circulation pump and is connected to the water delivery pipe.

[0009] The above technical solution involves: pressure sensors 1 and 2 detecting the pressure at the input and output ends of the circulating pump; the data acquisition module statistically analyzing the detected pressures, calculating the pressure difference, and transmitting the pressure difference to the central processing unit (CPU). The CPU calculates the adjustment value based on the pressure difference and transmits the adjustment value to the actuator. Upon receiving the instruction, the actuator controls the speed of the circulating pump and the opening and closing degree of the electric valve, thereby ensuring that the pressure difference returns to the normal value, providing protection for other equipment, reducing load, and reducing energy consumption. The communication module is responsible for transmitting the data to the remote monitoring and control platform.

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

[0011] Both connectors have sealing gaskets fixedly connected to their outer walls, and the diameter of the sealing gaskets is equal to the diameter of the connectors.

[0012] The above technical solution involves placing a sealing gasket between the connector and the filter box to prevent water leakage at the connection between the filter box and the connector.

[0013] As a further description of the above technical solution:

[0014] The top of the circulating pump is rotatably connected to a handle, and protective pads are fixedly connected to the outer wall of the handle around its perimeter.

[0015] The above technical solution allows users to easily move the circulation pump with a handle, and the protective pad protects the hands and prevents them from being injured.

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

[0017] The top of the water inlet is threaded with a protective cap, and the top of the protective cap has a cross groove.

[0018] The above technical solution prevents external dust and impurities from entering the water collection pipe, and the cross groove facilitates quick rotation of the protective cover.

[0019] As a further description of the above technical solution:

[0020] The left and right ends of the water collection pipe are threaded with protective caps, and the outer walls of the protective caps are provided with anti-slip grooves.

[0021] The above technical solution involves rotating the protective cover to remove it, cleaning the water collection pipe, and using the anti-slip groove to increase the friction between the hand and the protective cover, preventing the hand from slipping when rotating the protective cover.

[0022] As a further description of the above technical solution:

[0023] The communication module has a reserved slot at the top, and an antenna is rotatably connected to the inner wall of the reserved slot.

[0024] The above technical solution provides storage space for the antenna, which enhances the signal of the communication module and facilitates the rapid transmission of data to the remote detection and control platform.

[0025] As a further description of the above technical solution:

[0026] The central processing unit has multiple heat dissipation holes on its outer right side, and both coolers have heat dissipation vents on their outer front sides.

[0027] The above-mentioned technical solutions utilize heat dissipation holes and vents to dissipate heat and prevent the equipment from overheating and causing damage.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, water is evenly distributed into multiple branch pipes through a water distribution tank. The regulating valve adjusts the water flow rate according to actual needs. During the flow process, the water flows into the circulation pump after being filtered by the filter box. The distribution tank is connected to the collection pipe using connectors and connecting rings, which facilitates the disassembly of the filter box. The electric valve can control the water flow rate in the collection pipe according to the system operating status, thereby filtering out impurities in the water while realizing water circulation, thus improving the operating efficiency of the equipment and reducing energy consumption.

[0030] 2. In this utility model, the pressure at the input and output ends of the circulating pump is measured by pressure sensor one and pressure sensor two. The data acquisition module receives the pressure data detected by pressure sensor one and pressure sensor two, then calculates the differential pressure state, and transmits it to the central processing unit to calculate the adjustment data. The actuator controls the speed of the circulating pump and the valve opening of the electric valve according to the adjustment data until the system differential pressure returns to the normal range, thereby realizing real-time monitoring and intelligent control of the differential pressure of the air conditioning circulating water system, improving the stability and energy efficiency of the system. Attached Figure Description

[0031] Figure 1 This is a perspective view of a differential pressure monitoring and control device for an air conditioning circulating water system proposed in this utility model;

[0032] Figure 2 This is a partial structural exploded view of a differential pressure monitoring and control device for an air conditioning circulating water system proposed in this utility model;

[0033] Figure 3 This is a partial structural cross-sectional view of a differential pressure monitoring and control device for an air conditioning circulating water system proposed in this utility model;

[0034] Figure 4 This is a schematic diagram of the control mechanism of a differential pressure monitoring and control device for an air conditioning circulating water system proposed in this utility model;

[0035] Figure 5 This is a top view of a differential pressure monitoring and control device for an air conditioning circulating water system proposed in this utility model.

[0036] Legend:

[0037] 1. Circulating pump; 2. Control mechanism; 201. Mounting plate; 202. Data acquisition module; 203. Communication module; 204. Central processing unit; 205. Actuator; 206. Pressure sensor one; 207. Pressure sensor two; 3. Water supply pipe; 4. Water distribution tank; 5. Branch pipe; 6. Regulating valve; 7. Air conditioning equipment; 8. Water collection pipe; 9. Water inlet; 10. Filter box; 11. Connector; 12. Connecting ring; 13. Diverter plate; 14. Filter screen; 15. Filter cotton; 16. Electric valve; 17. Sealing gasket; 18. Handle; 19. Protective pad; 20. Protective cover; 21. Cross groove; 22. Protective cover; 23. Anti-slip groove; 24. Reserved groove; 25. Antenna; 26. Refrigerator; 27. Heat dissipation hole; 28. Heat dissipation outlet. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of an air conditioning circulating water system differential pressure monitoring and control device, comprising a circulating pump 1, which acts as a power source to draw water in from its input end, and then pressurizes the water through its output end before outputting it. The output end of the circulating pump 1 is connected to a water supply pipe 3, and the other end of the water supply pipe 3 is connected to a water distribution tank 4. Multiple branch pipes 5 are connected to the front of the water distribution tank 4, which evenly distributes water into the multiple branch pipes 5. Each branch pipe 5 has a regulating valve 6 fixedly connected to its top, and each regulating valve 6 has an air conditioning unit 7 connected to its middle section. The regulating valves 6 can adjust the water flow rate of each branch pipe 5 to meet the needs of different air conditioning units 7. The other end of the multiple regulating valves 6 is connected to a water collection pipe 8, which collects water from the water supply. Water from various air conditioning units 7 is collected in the water collection pipe 8. A water inlet 9 is connected to the top of the water collection pipe 8. When the water level in the circulation system decreases, water is added through the water inlet 9. A filter box 10 is installed in the middle of the water collection pipe 8. The filter box 10 is used to filter water. Connectors 11 are slidably connected to the upper and lower sides of the inner wall of the filter box 10. The connectors 11 slide and extend, allowing the filter box 10 to be removed when retracted. Connecting rings 12 are rotatably connected to the opposite sides of the two connectors 11. The connecting rings 12 are rotatably connected to the connectors, causing the connectors 11 to move upwards when the connectors move upwards. Both connecting rings 12 are threadedly connected to the water collection pipe 8. Rotating the connecting rings 12 and threading them into the water collection pipe 8 ensures a tight fit between the water collection pipe 8 and the connectors 11. A diversion plate 13 is fixedly connected to the top of the inner wall of the filter box 10. The diversion plate 13 distributes the water flow evenly, facilitating subsequent treatment. A filter screen 14 is fixedly connected to the middle of the inner wall of the filter box 10. The filter screen 14 filters out scale in the water, preventing scale from entering the air conditioning equipment 7 and causing damage. A filter cotton 15 is fixedly connected to the bottom of the inner wall of the filter box 10. The filter cotton 15 filters out small microorganisms in the water, preventing them from multiplying in the water collection pipe 8 and causing blockage. The other end of the water collection pipe 8 is connected to the circulation pump 1. An electric valve 16 is fixedly connected to the middle of the outer wall of the water collection pipe 8. The electric valve 16 controls the flow rate of water in the water collection pipe 8 according to the system operating status. Both sides of the circulating water pump 1 are connected to a cooler 26. When the circulating water passes through the cooler 26, the cooler 26 lowers the temperature of the circulating water. A control mechanism 2 is provided on the front side of the circulating pump 1. A sealing gasket 17 is fixedly connected to the outer wall of each of the two connectors 11. The diameter of the sealing gasket 17 is equal to the diameter of the connector 11. The sealing gasket 17 is fixed to the outer wall of the connector 11 and its diameter is equal to that of the connector. Its main function is to fill the gap between the connector 11 and the water collection pipe 8 when they are connected, so as to prevent water from leaking from the connection. A protective cover 20 is threadedly connected to the top of the water inlet 9. A cross groove 21 is provided on the top of the protective cover 20. The protective cover 20 prevents external impurities from falling into the water collection pipe 8. The cross groove 21 makes it easy to unscrew the protective cover 20.

[0040] Specifically, the circulating pump 1 starts, drawing and pressurizing water from its inlet, and then delivering it to the distribution tank 4 via the water pipe 3 through its outlet. The distribution tank 4 acts as a diversion tank, evenly distributing the water to multiple branch pipes 5. The regulating valve 6 adjusts the water flow according to actual needs. Then, the water enters the air conditioning unit 7, where it undergoes heat exchange. After absorbing heat, it flows out of the air conditioning unit 7 and back to the collection pipe 8 via the branch pipes 5. When the circulating water passes through the chiller 26, the chiller 26 lowers the temperature of the circulating water. The cooled water continues to flow in the collection pipe 8. During its flow, the water passes through the filter box 10. After entering the filter box 10, the water flows through the diversion plate 13, which... The water flow is evenly distributed, improving the filtration effect. After passing through the filter screen 14 and filter cotton 15 in sequence, the water flows into the circulation pump 1. The electric valve 16 can control the flow rate of water in the water collection pipe 8 according to the system operating status. The sealing gasket 17 fills the gap between the connector 11 and the water collection pipe 8 to prevent water from leaking from the connection. The water inlet 9 and the protective cover 20 form a reliable seal through the tight fit between the threads. When the air conditioning circulating water system is running, the protective cover 20 is tightly closed, effectively preventing outside air, dust, impurities, etc. from entering the water collection pipe 8.

[0041] Reference Figure 4 and Figure 5 The control mechanism 2 includes a mounting plate 201, which is fixedly connected to the top of the water distribution tank 4. The mounting plate 201 provides a stable mounting base for other components of the control mechanism 2. A data acquisition module 202 is fixedly connected to the top left side of the mounting plate 201. The data acquisition module 202 is used to receive and analyze the acquired data. A communication module 203 is fixedly connected to the top center of the mounting plate 201. The communication module 203 transmits data to the remote detection and control system. A central processing unit 204 is threadedly connected to the top right side of the mounting plate 201. The central processing unit 204 is responsible for calculating and analyzing the acquired data. An actuator 205 is fixedly connected to the top of the central processing unit 204. The actuator 205 receives instructions from the central processing unit 204 to control the speed of the circulating pump 1 and the opening and closing degree of the electric valve 16. A pressure sensor 206 is installed on the left side of the circulating pump 1 to detect the water pressure at the input end of the circulating pump 1. The pressure sensor 206 is connected to the water collection pipe 8. A pressure sensor 207 is installed on the front side of the circulating pump 1 and is connected to the water supply pipe 3. The pressure sensor 207 is used to detect the pressure at the output end of the circulating pump 1. A reserved slot 24 is opened on the top of the communication module 203. An antenna 25 is rotatably connected to the inner wall of the reserved slot 24. The antenna 25 is extended to enhance the signal of the communication module 203 and speed up the data transmission speed.

[0042] Specifically, when some air conditioning equipment 7 is shut down, regulating valve 6 automatically closes. At this time, the water pressure difference across circulating pump 1 changes. Pressure sensor 1 206 is used to accurately measure the pressure at the input end of circulating pump 1, and pressure sensor 207 is used to measure the pressure at the output end of circulating pump 1. The data acquisition module 202 receives the pressure data detected by pressure sensor 1 206 and pressure sensor 207, and then calculates the pressure difference state. When the pressure difference exceeds the preset threshold, the central processing unit 204 automatically calculates the adjustment data and transmits the data to be adjusted to the actuator 205. The actuator 205 controls the speed of circulating pump 1 and the opening of electric valve 16 according to the adjustment data until the system pressure difference returns to the normal range. The communication module 203 uploads the device's operating status and adjustment information to the remote monitoring equipment for subsequent analysis and optimization. The antenna 25 in the reserved slot 24 is used to enhance the signal reception strength of the communication module 203 when deployed, facilitating rapid data transmission.

[0043] Reference Figure 1 , Figure 2 and Figure 3 The top of the circulation pump 1 is rotatably connected to a handle 18, which provides a gripping point for the circulation pump 1. Protective pads 19 are fixedly connected to the outer wall of the handle 18 to prevent hand injury when lifting the circulation pump 1. The left and right ends of the water collection pipe 8 are threaded with protective covers 22. The outer wall of the protective cover 22 is provided with anti-slip grooves 23. The protective cover 22 is threaded to the water collection pipe 8, making it easy to remove the protective cover 22 to clean the inside of the water collection pipe 8. The right side of the outer wall of the central processing unit 204 has multiple heat dissipation holes 27, and the front side of the outer wall of the two coolers 26 has heat dissipation vents 28. Both the heat dissipation holes 27 and the heat dissipation vents 28 serve the purpose of heat dissipation.

[0044] Specifically, handle 18 provides a gripping point for circulation pump 1, facilitating easy movement of circulation pump 1; protective pad 19 provides hand protection to prevent hand injury when carrying circulation pump 1; protective cover 22 is threadedly connected to water collection pipe 8, making it easy to remove protective cover 22 for cleaning the inside of water collection pipe 8; anti-slip groove 23 increases the friction between hand and protective cover 22 to prevent hand slippage when rotating protective cover 22; heat dissipation hole 27 and heat dissipation outlet 28 both serve to dissipate heat, preventing the equipment temperature from rising and affecting use after long-term operation.

[0045] Working Principle: Before using the device, the circulating pump 1 is first started to draw and pressurize water from its input end, and then delivers it to the water distribution tank 4 through the water pipe 3 via the output end. The water distribution tank 4 evenly distributes the water into multiple branch pipes 5. The regulating valve 6 adjusts the water flow according to actual needs. Then the water enters the air conditioning unit 7, where heat exchange takes place. After absorbing heat, the water flows out of the air conditioning unit 7 and flows back to the water collection pipe 8 through the branch pipes 5. When the circulating water passes through the chiller 26, the chiller 26 lowers the temperature of the circulating water. The cooled water continues to flow in the water collection pipe 8. During the flow, the water passes through the filter box 10. After entering the filter box 10, the water flows through the diversion plate 13, which evenly distributes the water flow and improves the filtration effect. Then, it passes through the filter screen 14 and the filter cotton 15 in sequence before flowing back to the circulating pump 1. The electric valve 16 can control the water flow in the water collection pipe 8 according to the system operating status, thereby realizing water circulation while simultaneously reducing water temperature. Impurities in the water are filtered out, improving equipment operating efficiency and reducing energy consumption. Pressure sensor 206 accurately measures the pressure at the input of circulating pump 1, and pressure sensor 207 measures the pressure at the output of circulating pump 1. The data acquisition module 202 receives the pressure data detected by pressure sensors 206 and 207, and then calculates the differential pressure state. When the differential pressure exceeds a preset threshold, the central processing unit 204 automatically calculates the adjustment data and transmits the data to the actuator 205. The actuator 205 controls the speed of circulating pump 1 and the opening of electric valve 16 according to the adjustment data until the system differential pressure returns to the normal range. The communication module 203 uploads the device's operating status and adjustment information to a remote monitoring device for subsequent analysis and optimization. This achieves real-time monitoring and intelligent control of the differential pressure in the air conditioning circulating water system, improving system stability and energy efficiency.

[0046] 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. A differential pressure monitoring and control device for an air conditioning circulating water system, comprising a circulating pump (1), characterized in that: The output end of the circulating pump (1) is connected to a water supply pipe (3), and the other end of the water supply pipe (3) is connected to a water distribution tank (4). The front side of the water distribution tank (4) is connected to multiple branch pipes (5). The top of each of the multiple branch pipes (5) is fixedly connected to a regulating valve (6). The middle of each of the multiple regulating valves (6) is connected to an air conditioning device (7). The other end of each of the multiple regulating valves (6) is connected to a water collection pipe (8). The top of the water collection pipe (8) is connected to a water inlet (9). A filter box (10) is provided in the middle of the water collection pipe (8). The upper and lower sides of the inner wall of the filter box (10) are slidably connected to connectors (11). Two of the connectors (11) Both of the two connecting rings (12) are rotatably connected to the opposite sides of the filter box (10). Both connecting rings (12) are threadedly connected to the water collection pipe (8). A diverter plate (13) is fixedly connected to the top of the inner wall of the filter box (10). A filter screen (14) is fixedly connected to the middle of the inner wall of the filter box (10). A filter cotton (15) is fixedly connected to the bottom of the inner wall of the filter box (10). The other end of the water collection pipe (8) is connected to the circulation pump (1). An electric valve (16) is fixedly connected to the middle of the outer wall of the water collection pipe (8). A cooler (26) is connected to both the left and right sides of the water collection pipe (8). A control mechanism (2) is provided on the front side of the circulation pump (1).

2. The differential pressure monitoring and control device for an air conditioning circulating water system according to claim 1, characterized in that: The control mechanism (2) includes a mounting plate (201), which is fixedly connected to the top of the water distribution tank (4). A data acquisition module (202) is fixedly connected to the top left side of the mounting plate (201). A communication module (203) is fixedly connected to the top center of the mounting plate (201). A central processing unit (204) is threadedly connected to the top right side of the mounting plate (201). An actuator (205) is fixedly connected to the top of the central processing unit (204). A pressure sensor (206) is provided on the left side of the circulation pump (1). The pressure sensor (206) is connected to the water collection pipe (8). A pressure sensor (207) is provided on the front side of the circulation pump (1). The pressure sensor (207) is connected to the water delivery pipe (3).

3. The differential pressure monitoring and control device for an air conditioning circulating water system according to claim 1, characterized in that: Both connectors (11) have a sealing gasket (17) fixedly connected to their outer walls, and the diameter of the sealing gasket (17) is equal to the diameter of the connector (11).

4. The differential pressure monitoring and control device for an air conditioning circulating water system according to claim 1, characterized in that: The top of the circulating pump (1) is rotatably connected to a handle (18), and protective pads (19) are fixedly connected around the outer wall of the handle (18).

5. The differential pressure monitoring and control device for an air conditioning circulating water system according to claim 1, characterized in that: The top of the water inlet (9) is threaded with a protective cover (20), and the top of the protective cover (20) is provided with a cross groove (21).

6. The differential pressure monitoring and control device for an air conditioning circulating water system according to claim 1, characterized in that: The left and right ends of the water collection pipe (8) are threaded with protective covers (22), and anti-slip grooves (23) are provided around the outer wall of the protective cover (22).

7. The differential pressure monitoring and control device for an air conditioning circulating water system according to claim 2, characterized in that: The communication module (203) has a reserved slot (24) on its top, and an antenna (25) is rotatably connected to the inner wall of the reserved slot (24).

8. The differential pressure monitoring and control device for an air conditioning circulating water system according to claim 2, characterized in that: The central processing unit (204) has multiple heat dissipation holes (27) on the right side of its outer wall, and the two coolers (26) have heat dissipation vents (28) on the front side of their outer walls.

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