Central air conditioning water source heat pump water circulation cooling system

Abstract

The application discloses a central air-conditioning water source heat pump water circulation cooling system, which comprises a water source heat pump unit and a regulating device arranged in the water source heat pump unit, wherein the water source heat pump unit comprises a bottom plate, a condenser, an evaporator and a compressor are arranged on the top of the bottom plate, and the condenser is communicated with the evaporator; through the arrangement of the blade, the backflow water drives the rotation of the screw rod through the blade, and the blade drives the movement of the push plate; along with the long-time operation of the equipment, the distance between the push plate and the blade is closer, and then the heat exchange temperature between the inlet water and the backflow water is adjusted.

Description

Technical Field

[0001] This invention relates to the field of water source heat pump technology, and more specifically, to a central air conditioning water source heat pump water circulation cooling system. Background Technology

[0002] Water source heat pumps utilize low-grade heat energy resources formed by absorbing solar and geothermal energy from shallow water sources on the Earth's surface, such as groundwater, rivers, and lakes. Employing the heat pump principle, a technology transfers low-grade heat energy to high-grade heat energy through a small amount of high-grade electrical energy input. The principle is as follows: During cooling, high-temperature and high-pressure refrigerant gas exits from the compressor and enters the condenser. The refrigerant releases heat into the cooling water (groundwater), forming a high-temperature and high-pressure liquid, which raises the temperature of the cooling water. The raised groundwater is then discharged back underground. The heating principle is the opposite.

[0003] Ground source heat pumps have specific temperature requirements for groundwater during operation: 12-22℃ in winter and 18-35℃ in summer. Due to my country's vast territory and diverse geographical locations with significant latitudinal spans, groundwater temperatures vary greatly. When groundwater temperatures are low, the efficiency of ground source heat pumps is poor, necessitating temperature regulation. However, current regulation methods cannot adjust the temperature based on the equipment's operating time. When the equipment first starts operating, the temperature of the water flowing back to the ground is low; after running for a period, the temperature rises. This requires constant monitoring of the equipment, increasing manual labor. Summary of the Invention

[0004] The purpose of this invention is to provide a central air conditioning water source heat pump water circulation cooling system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a central air conditioning water source heat pump water circulation cooling system, comprising a water source heat pump unit and a regulating device disposed within the water source heat pump unit. The water source heat pump unit includes a base plate, and a condenser, an evaporator, and a compressor are disposed on the top of the base plate. The condenser is connected to the evaporator and the compressor. One end of the condenser is connected to a return water pipe and an inlet water pipe. The regulating device includes at least:

[0006] A heat exchange assembly includes a shell disposed on the top of a base plate, a cover plate connected to the top of the shell, a partition plate disposed inside the shell dividing the shell into a reflux cavity and a water inlet cavity, a support block disposed on the top of the partition plate, a limit block disposed on the side wall of the shell within the reflux cavity, a drain pipe disposed within the reflux cavity, one end of the drain pipe penetrating the shell, the reflux cavity communicating with the return water pipe, the water inlet cavity communicating with the inlet water pipe, and a water pump mounted on the top of the base plate disposed on one side of the shell, the drain port of the water pump communicating with the water inlet cavity;

[0007] An adjusting assembly includes a lead screw, one end of which passes through and is rotatably connected to a support block, and the other end of which passes through and is rotatably connected to a housing. A push plate is threadedly connected to the outer wall of the lead screw, and the outer wall of the push plate is in contact with the inner wall of the housing. The push plate is slidably disposed on the outer wall of the drain pipe, and a blade is provided at the end of the lead screw near the return pipe.

[0008] As a further improvement to this technical solution, a connecting cover is provided on the top of the base plate, and a sound insulation component is provided on the inner wall of the connecting cover.

[0009] As a further improvement to this technical solution, multiple electric push rods are installed on the side wall of the base plate, and multiple connecting blocks are provided on the side wall of the connecting cover. The movable end of the electric push rod is connected to the connecting block.

[0010] As a further improvement to this technical solution, the side wall of the shell is connected to the water inlet cavity by a connecting pipe, and an installation cavity is opened between the inner wall and the outer wall of the connecting cover. A guide pipe is installed in the installation cavity, and one end of the guide pipe is connected to one end of the connecting pipe.

[0011] As a further improvement to this technical solution, a filter plate is provided at one end of the water inlet cavity near the water pump, and an installation groove is provided on the side wall of the housing at the filter plate, and a fixing plate is provided in the installation groove.

[0012] As a further improvement to this technical solution, a slot is provided on the outer wall of the end of the lead screw away from the blade, and a straight rod is inserted into the slot.

[0013] As a further improvement to this technical solution, a rotating cavity is provided inside the lead screw, and multiple connecting strips are provided inside the rotating cavity. A connecting rod is rotatably arranged inside the rotating cavity, and multiple connecting plates are rotatably connected to the outer wall of the connecting rod. A telescopic rod is provided between one side of the connecting plate and the outer wall of the connecting rod, and a compression spring is sleeved on the outer wall of the telescopic rod.

[0014] As a further improvement to this technical solution, a mounting bracket is installed on the side wall of the housing, and a fan blade is rotatably arranged inside the mounting bracket. One end of the fan blade is connected to a transmission rod, and one end of the transmission rod is provided with a transmission gear. A drive gear meshes with the outer wall of the transmission gear, and the side wall of the drive gear is connected to one end of a connecting rod.

[0015] As a further improvement to this technical solution, the outer wall of the filter plate is provided with multiple scraper strips, which are connected by a support rod. One end of the support rod passes through the partition and is slidably connected thereto. One end of the support rod is connected to a driven plate, and one end of the driven plate passes through the housing.

[0016] As a further improvement to this technical solution, a mounting shaft is provided at the top of one end of the driven plate, an eccentric shaft is provided inside the connecting rod, a transmission plate is rotatably connected to the outer wall of the eccentric shaft, and one end of the transmission plate is rotatably connected to the mounting shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In this central air conditioning water source heat pump water circulation cooling system, through the set blades, the return water drives the screw to rotate through the blades, and the blades drive the push plate to move. As the equipment runs for a long time, the distance between the push plate and the blades becomes closer, thereby realizing the adjustment of the heat exchange temperature between the inlet water and the return water. This eliminates the need for manual operation and solves the problem that when the equipment is first started, the temperature of the water returning to the ground is low, and when the equipment has been running for a period of time, the temperature of the water returning to the ground is high, which requires people to keep watching the equipment and thus increases the labor force.

[0019] 2. In this central air conditioning water source heat pump water circulation cooling system, through the connecting rod, when the push plate contacts the limit block, the blade is subjected to greater resistance, which forces the connecting rod to rotate. The rotation of the connecting rod causes the compression spring to be compressed, and the compression of the straight rod drives the connecting plate to rotate. The rotating connecting plate disengages from the connecting bar, and the blade continues to rotate, so as to avoid the return water from contacting the blade at the same position for a long time.

[0020] 3. In this central air conditioning water source heat pump water circulation cooling system, the fan blades are installed, and the connecting rod drives the transmission gear through the drive gear. The transmission gear drives the fan blades to rotate through the transmission rod. The rotation of the fan blades draws the outside air into the connecting cover, which accelerates the air circulation and thus cools the equipment, so as to save the use of groundwater in winter. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 2This is a schematic diagram of the water source heat pump unit structure according to Embodiment 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of the connecting cover structure of Embodiment 1 of the present invention;

[0024] Figure 4 This is a schematic diagram of the adjustment device structure according to Embodiment 1 of the present invention;

[0025] Figure 5 This is a schematic diagram of the heat exchange component structure according to Embodiment 1 of the present invention;

[0026] Figure 6 This is a schematic diagram of the adjustment component structure in Embodiment 1 of the present invention;

[0027] Figure 7 This is a schematic diagram of the lead screw structure in Embodiment 2 of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point A of the lead screw in Example 2;

[0029] Figure 9 This is a schematic diagram of the fan blade structure in Embodiment 3 of the present invention;

[0030] Figure 10 This is a schematic diagram of the scraper structure in Embodiment 4 of the present invention;

[0031] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the driven plate B in Example 4.

[0032] The meanings of the labels in the diagram are as follows:

[0033] 100. Water source heat pump unit;

[0034] 110. Base plate; 111. Condenser; 112. Evaporator; 113. Compressor; 114. Return water pipe; 115. Inlet water pipe;

[0035] 120. Connecting cover; 121. Sound insulation component; 122. Electric push rod; 123. Connecting block; 124. Guide tube;

[0036] 200. Adjustment device;

[0037] 210. Heat exchanger assembly; 211. Shell; 212. Cover plate; 213. Partition plate; 214. Support block; 215. Limiting block; 216. Drain pipe; 217. Water pump; 218. Connecting pipe;

[0038] 220. Adjusting assembly; 221. Lead screw; 222. Blade; 223. Push plate; 224. Straight rod;

[0039] 230. Filter plate; 231. Fixed plate; 232. Scraper bar; 233. Support rod; 234. Driven plate; 235. Transmission plate; 236. Eccentric shaft;

[0040] 240. Connecting bar; 241. Connecting rod; 242. Connecting plate; 243. Telescopic rod; 244. Compression spring;

[0041] 250. Mounting bracket; 251. Fan blade; 252. Transmission rod; 253. Transmission gear; 254. Drive gear. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] Example 1

[0046] Please see Figures 1-6As shown, a central air conditioning water source heat pump water circulation cooling system is provided, including a water source heat pump unit 100 and a regulating device 200 disposed within the water source heat pump unit 100. The water source heat pump unit 100 includes a base plate 110, and a condenser 111, an evaporator 112, and a compressor 113 are disposed on the top of the base plate 110. The condenser 111 is connected to the evaporator 112 and the compressor 113. One end of the condenser 111 is connected to a return water pipe 114 and an inlet water pipe 115. The regulating device 200 includes at least:

[0047] The heat exchange assembly 210 includes a housing 211 disposed on the top of the base plate 110. A cover plate 212 is connected to the top of the housing 211. A partition 213 is disposed inside the housing 211, dividing the housing 211 into a reflux cavity and a water inlet cavity. The reflux cavity is located above the partition 213, and the water inlet cavity is located below the partition 213. A support block 214 is disposed on the top of the partition 213. A limit block 215 is disposed on the side wall of the housing 211 within the reflux cavity. A drain pipe 216 is disposed within the reflux cavity. One end of the drain pipe 216 penetrates the housing 211. The reflux cavity is connected to the return water pipe 114, and the water inlet cavity is connected to the water inlet pipe 115. A water pump 217 is disposed on one side of the housing 211 and installed on the top of the base plate 110. The drain port of the water pump 217 is connected to the water inlet cavity.

[0048] The regulating component 220 includes a lead screw 221. One end of the lead screw 221 passes through and is rotatably connected to the support block 214, and the other end passes through and is rotatably connected to the housing 211. A push plate 223 is threadedly connected to the outer wall of the lead screw 221. The outer wall of the push plate 223 is in contact with the inner wall of the housing 211. The push plate 223 is slidably disposed on the outer wall of the drain pipe 216. A blade 222 is provided at the end of the lead screw 221 near the return water pipe 114. Through the blade 222, the return water drives the lead screw 221 to rotate, and the blade 222 drives the push plate 223 to move. As the equipment runs for a long time, the distance between the push plate 223 and the blade 222 becomes closer, thereby realizing the adjustment of the heat exchange temperature between the inlet water and the return water, so that no manual operation is required.

[0049] In this embodiment, when the water source heat pump unit 100 and regulating device 200 are in use, the power supply to the water pump 217 is turned on, and the water pump 217 pumps groundwater into the water inlet cavity at the bottom of the partition 213. The water in the water inlet cavity enters the condenser 111 through the water inlet pipe 115. The condenser 111 contacts the groundwater and conducts heat to the groundwater. The heated groundwater enters the return cavity through the return water pipe 114. The hot water in the return cavity transfers heat to the water inlet cavity through the partition 213, thus heating the water in the water inlet cavity. When the water in the return water pipe 114 is discharged, it comes into contact with the blade 222, generating resistance and forcing the blade 222 to drive the lead screw 221 to rotate. The rotation of the lead screw 221 drives the push plate 223 to move through the screw force. At this time, the space in the return cavity becomes smaller, gradually reducing the capacity of the hot water in the return cavity, resulting in a lower heat exchange efficiency between the return cavity and the water inlet cavity.

[0050] In addition, in order to reduce the noise generated during the operation of the equipment, a connecting cover 120 is provided on the top of the base plate 110, and a sound insulation component 121 is provided on the inner wall of the connecting cover 120. The sound insulation component 121 is preferably made of sound insulation cotton. The sound insulation cotton is small in volume, so as to fill small areas. The sound insulation component 121 is used to absorb the noise generated during the operation of the equipment, so that the equipment will not affect the rest of the surrounding people when it is running.

[0051] Furthermore, to facilitate maintenance of the equipment inside the connecting cover 120, multiple electric push rods 122 are installed on the side wall of the base plate 110, and multiple connecting blocks 123 are provided on the side wall of the connecting cover 120. The movable end of the electric push rod 122 is connected to the connecting block 123. When it is necessary to maintain equipment such as the condenser 111, evaporator 112, and compressor 113, the power supply of the electric push rod 122 is turned on, and the movable end of the electric push rod 122 extends out and drives the connecting cover 120 to move upward through the connecting block 123. At this time, a gap is created between the connecting cover 120 and the base plate 110, and people can enter the connecting cover 120.

[0052] Furthermore, in order to utilize groundwater, a connecting pipe 218 is connected to the water inlet cavity on the side wall of the shell 211. An installation cavity is opened between the inner and outer walls of the connecting cover 120. A guide pipe 124 is installed in the installation cavity. One end of the guide pipe 124 is connected to one end of the connecting pipe 218. Considering that the equipment will generate a strong temperature during summer operation, the water in the water inlet cavity is diverted to the guide pipe 124 through the connecting pipe 218. Since the temperature of the groundwater is low, the temperature around the connecting cover 120 is reduced, thereby realizing the utilization of groundwater.

[0053] Specifically, in order to filter groundwater, a filter plate 230 is installed at one end of the inlet cavity near the water pump 217. An installation groove is provided on the side wall of the housing 211 at the filter plate 230, and a fixing plate 231 is installed in the installation groove. Considering that groundwater contains certain impurities, when groundwater enters the inlet cavity, the impurities in the groundwater are blocked by the filter plate 230, thereby achieving the filtration of groundwater.

[0054] In addition, to facilitate the reset of the push plate 223, a slot is provided on the outer wall of the end of the lead screw 221 away from the blade 222, and a straight rod 224 is inserted into the slot. Considering that the push plate 223 needs to be reset when the equipment is restarted after being stopped, the straight rod 224 is provided. When reset is required, the straight rod 224 is inserted into the slot, and then the straight rod 224 is rotated. The rotation of the straight rod 224 drives the lead screw 221 to rotate, and the lead screw 221 drives the push plate 223 to reset through the screw force.

[0055] Example 2

[0056] To prevent blade 222 from being damaged by water, the following improvements were made based on Example 1:

[0057] Please see Figures 7-8 As shown, the lead screw 221 has a rotating cavity, within which multiple connecting strips 240 are installed. A connecting rod 241 is rotatably mounted within the rotating cavity, and multiple connecting plates 242 are rotatably connected to the outer wall of the connecting rod 241. A telescopic rod 243 is installed between one side of the connecting plate 242 and the outer wall of the connecting rod 241. The telescopic rod 243 is composed of multiple slidably connected round rods, and a compression spring 244 is fitted onto the outer wall of the telescopic rod 243. Considering that after the equipment has been running for a long time, the push plate 223 may move and intersect with the limit block 21... When the push plate 223 is in contact with the limit block 215, it cannot move and thus restricts the blade 222, preventing the blade 222 from rotating. Therefore, when the push plate 223 contacts the limit block 215, the blade 222 is subjected to greater resistance, forcing the connecting rod 241 to rotate. The rotation of the connecting rod 241 causes the compression spring 244 to be compressed. The compression of the straight rod 224 drives the connecting plate 242 to rotate. The connecting plate 242 rotates and disengages from the connecting strip 240. At this time, the blade 222 continues to rotate, avoiding prolonged contact between the backflow water and the blade 222 at the same position.

[0058] Example 3

[0059] To achieve heat dissipation for the equipment in winter, the following improvements are made based on Example 2:

[0060] Please see Figure 9As shown, a mounting bracket 250 is installed on the side wall of the housing 211. A fan blade 251 is rotatably mounted inside the mounting bracket 250. One end of the fan blade 251 is connected to a transmission rod 252. A transmission gear 253 is installed at one end of the transmission rod 252. A drive gear 254 meshes with the outer wall of the transmission gear 253. Both the transmission gear 253 and the drive gear 254 are helical gears. The helical gears can change the reverse direction of the force transmission, so that the fan blade 251 faces the equipment, improving air circulation near the equipment. The side wall of the drive gear 254 is connected to one end of the connecting rod 241. Considering the low outside temperature in winter, cooling the equipment through the connecting pipe 218 and guide pipe 124 would waste groundwater resources. Therefore, when the lead screw 221 drives the connecting rod 241 to rotate, the connecting rod 241 drives the transmission gear 253 through the drive gear 254. The transmission gear 253 drives the fan blade 251 to rotate through the transmission rod 252. The rotation of the fan blade 251 draws outside air into the connecting cover 120, accelerating air circulation and thus cooling the equipment, which helps to conserve groundwater in winter.

[0061] Example 4

[0062] To prevent the sidewalls of the filter plate 230 from becoming covered with impurities, the following improvements are made based on Example 2:

[0063] Please see Figures 10-11 As shown, the outer wall of the filter plate 230 is provided with multiple scraper strips 232, which are connected by a support rod 233. One end of the support rod 233 passes through and is slidably connected to the partition plate 213, and the other end of the support rod 233 is connected to a driven plate 234. One end of the driven plate 234 passes through the housing 211. Considering that impurities on the side wall of the filter plate 230 will affect the flow of water, when there are many impurities on the side wall of the filter plate 230, the driven plate 234 moves up and down. The driven plate 234 drives the scraper strips 232 to move through the support rod 233. The movement of the scraper strips 232 removes the impurities on the side wall of the filter plate 230, thus not affecting the flow of water.

[0064] In addition, in order to achieve automatic cleaning of the filter plate 230 by the scraper 232, an installation shaft is provided at the top of one end of the driven plate 234, and an eccentric shaft 236 is provided inside the connecting rod 241. A transmission plate 235 is rotatably connected to the outer wall of the eccentric shaft 236. One end of the transmission plate 235 is rotatably connected to the installation shaft. When the connecting rod 241 rotates, the connecting rod 241 drives the eccentric shaft 236 to rotate. The eccentric shaft 236 drives the driven plate 234 to move back and forth through the transmission plate 235. The movement of the driven plate 234 drives the scraper 232 to move, thereby realizing the automatic cleaning of the filter plate 230 by the scraper 232.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central air conditioning water source heat pump water circulation cooling system, comprising a water source heat pump unit (100) and an regulating device (200) disposed within the water source heat pump unit (100), wherein the water source heat pump unit (100) comprises a base plate (110), and a condenser (111), an evaporator (112), and a compressor (113) are disposed on the top of the base plate (110), wherein the condenser (111) is connected to the evaporator (112), and the condenser (111) is connected to the compressor (113), characterized in that: One end of the condenser (111) is connected to a return water pipe (114) and an inlet water pipe (115), and the regulating device (200) includes at least: A heat exchange assembly (210) includes a housing (211) disposed on top of a base plate (110), a cover plate (212) connected to the top of the housing (211), a partition plate (213) disposed inside the housing (211), the partition plate (213) dividing the housing (211) into a reflux cavity and a water inlet cavity, a support block (214) disposed on the top of the partition plate (213), and the sidewall of the housing (211) A limit block (215) is provided in the reflux cavity, and a drain pipe (216) is provided in the reflux cavity. One end of the drain pipe (216) penetrates the shell (211). The reflux cavity is connected to the return water pipe (114), and the water inlet cavity is connected to the water inlet pipe (115). A water pump (217) is installed on the top of the base plate (110) on one side of the shell (211). The drain port of the water pump (217) is connected to the water inlet cavity. Adjustment assembly (220) includes a lead screw (221), one end of which passes through a support block (214) and is rotatably connected thereto, and the other end of which passes through a housing (211) and is rotatably connected thereto. A push plate (223) is threadedly connected to the outer wall of the lead screw (221), and the outer wall of the push plate (223) is in contact with the inner wall of the housing (211). The push plate (223) is slidably disposed on the outer wall of the drain pipe (216). A blade (222) is provided at the end of the lead screw (221) near the return water pipe (114).

2. The central air conditioning water source heat pump water circulation cooling system according to claim 1, characterized in that: The top of the base plate (110) is provided with a connecting cover (120), and the inner wall of the connecting cover (120) is provided with a sound insulation component (121).

3. The central air conditioning water source heat pump water circulation cooling system according to claim 2, characterized in that: The side wall of the base plate (110) is equipped with a plurality of electric push rods (122), and the side wall of the connecting cover (120) is provided with a plurality of connecting blocks (123). The movable end of the electric push rod (122) is connected to the connecting block (123).

4. The central air conditioning water source heat pump water circulation cooling system according to claim 2, characterized in that: The side wall of the housing (211) is connected to the water inlet cavity by a connecting pipe (218). An installation cavity is provided between the inner wall and the outer wall of the connecting cover (120). A guide pipe (124) is provided in the installation cavity. One end of the guide pipe (124) is connected to one end of the connecting pipe (218).

5. The central air conditioning water source heat pump water circulation cooling system according to claim 1, characterized in that: A filter plate (230) is provided at one end of the water inlet cavity near the water pump (217). An installation groove is provided on the side wall of the housing (211) at the filter plate (230), and a fixing plate (231) is provided in the installation groove.

6. The central air conditioning water source heat pump water circulation cooling system according to claim 1, characterized in that: The lead screw (221) has a slot on the outer wall of the end away from the blade (222), and a straight rod (224) is inserted into the slot.

7. The central air conditioning water source heat pump water circulation cooling system according to claim 5, characterized in that: The lead screw (221) has a rotating cavity, and multiple connecting strips (240) are provided in the rotating cavity. A connecting rod (241) is rotatably provided in the rotating cavity. Multiple connecting plates (242) are rotatably connected to the outer wall of the connecting rod (241). A telescopic rod (243) is provided between one side of the connecting plate (242) and the outer wall of the connecting rod (241). A compression spring (244) is sleeved on the outer wall of the telescopic rod (243).

8. The central air conditioning water source heat pump water circulation cooling system according to claim 7, characterized in that: A mounting bracket (250) is installed on the side wall of the housing (211). A fan blade (251) is rotatably arranged inside the mounting bracket (250). One end of the fan blade (251) is connected to a transmission rod (252). One end of the transmission rod (252) is provided with a transmission gear (253). A drive gear (254) meshes with the outer wall of the transmission gear (253). The side wall of the drive gear (254) is connected to one end of the connecting rod (241).

9. The central air conditioning water source heat pump water circulation cooling system according to claim 7, characterized in that: The outer wall of the filter plate (230) is provided with a plurality of scraper strips (232), which are connected by a support rod (233). One end of the support rod (233) passes through the partition plate (213) and is slidably connected thereto. One end of the support rod (233) is connected to a driven plate (234), and one end of the driven plate (234) passes through the housing (211).

10. The central air conditioning water source heat pump water circulation cooling system according to claim 9, characterized in that: The driven plate (234) has a mounting shaft at the top of one end, and an eccentric shaft (236) is provided inside the connecting rod (241). A transmission plate (235) is rotatably connected to the outer wall of the eccentric shaft (236), and one end of the transmission plate (235) is rotatably connected to the mounting shaft.

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