Self-control energy-saving water cooling device of central air conditioner

Abstract

The invention provides a self-control energy-saving water cooling device of a central air conditioner, and relates to the technical field of air conditioner cooling. The self-control energy-saving water cooling device of the central air conditioner comprises a frame and further comprises two sets of cold and hot medium circulating systems and a water tank assembly which are fixedly installed on the frame, and the two sets of cold and hot medium circulating systems are connected with the upper end and the lower end of the water tank assembly respectively. The heating assembly and the refrigerating assembly are installed on the water tank assembly. According to the self-control energy-saving water cooling device of the central air conditioner, by arranging the cold and hot medium circulating system and the water tank assembly, the effect of saving energy and cooling the central air conditioner is achieved, no additional water source is needed, pollution of condensate water to the pipeline is lower, it is guaranteed that the self-control energy-saving water cooling device can still be used in cooperation with an existing central air conditioner outdoor unit under the condition that a cooling fan is not additionally arranged, and the service life of the central air conditioner is prolonged. According to the central air conditioner, secondary utilization of wind power can be achieved, the energy-saving and cooling effects are achieved, and the refrigerating assembly is arranged, so that the effect that the central air conditioner always operates with small energy can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning cooling, in particular to an automatic control energy-saving water cooling device for a central air conditioning. Background Art

[0002] Central air conditioning refers to a large air conditioning system, which consists of a main unit and a terminal. The main unit is divided into a water-cooled unit and an air-cooled unit. The terminal equipment mainly consists of an air conditioning unit and a fan coil. Unlike ordinary household air conditioners, central air conditioning can be used in large-scale buildings. This system is different from traditional refrigerant air conditioners. It centrally processes air to meet comfort requirements. It uses the principle of liquid vaporization refrigeration to provide the required cooling capacity for the air conditioning system to offset the heat load of the indoor environment; the heating system provides the required heat for the air conditioning system to offset the cooling and heating loads of the indoor environment.

[0003] Since the power devices of the central air-conditioning control module generate a lot of heat, in order to ensure its normal operation, the control module must be effectively cooled. The existing air-conditioning cooling system generally uses air cooling or water cooling for heat dissipation, but the heat dissipation effect of air cooling or water cooling is poor. It is difficult to ensure that the heat of the control module is dissipated in time. The control module is prone to overheating, causing unstable operation and reduced performance of the control module, affecting the normal operation of the central air-conditioning.

[0004] The existing water cooling uses refrigerant, but the cost is too high and it is not suitable for large-scale central air conditioning. The second is to use normal cooling water, but there are many disadvantages of using ordinary cooling water: 1. The circulating cooling water will gradually decrease with the delay of time and needs to be replenished regularly, so it is necessary to set up a water pump and water level monitoring equipment. It is suitable for large central air conditioners, but not suitable for single-host central air conditioners; 2. Ordinary cooling water is hard water. When it passes through heat transfer, scale will be generated in the guide pipe or water tank, which will affect the use over time; 3. The cold and heat energy of the air-conditioning outdoor unit cannot be reasonably utilized, resulting in the need for additional heat dissipation or refrigeration equipment, which increases energy consumption while cooling the central air-conditioning equipment. The actual effect is minimal, and it is impossible to save central air-conditioning energy while ensuring cooling, so it is not suitable for large-scale promotion. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic energy-saving water cooling device for a central air conditioner, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a central air-conditioning automatic energy-saving water cooling device, comprising a frame, a cold and hot medium circulation system and a water tank assembly fixedly mounted on the frame, the cold and hot medium circulation system is divided into two groups, respectively connected to the upper and lower ends of the water tank assembly; and a heating assembly and a refrigeration assembly mounted on the water tank assembly; The water tank assembly includes a water storage tank and a conical filter screen, wherein the conical filter screen is fixed to the inner bottom end of the water storage tank; The cold and hot medium circulation system includes a water pump A, a water pump B, a heat-conducting copper tube A, a fin A and a fan A. The water pump A and the water pump B included in one of the cold and hot medium circulation systems are both installed on the upper part of the water tank, the water outlet end of the water pump A extends to the bottom of the water tank and is above the conical filter, and the water inlet end of the water pump B extends to the upper part of the water tank. The water pump A and the water pump B included in the other cold and hot medium circulation system are both installed on the bottom side of the water tank and are connected to the area of ​​the water tank below the conical filter. There are multiple heat-conducting copper tubes A, and their two ends are respectively connected to the water pump A and the water pump B. There are multiple fins A, which are fixed together on multiple heat-conducting copper tubes A. Fan A is on one side of fin A and is used to blow air to fin A. Fan A and fin A are both fixed on the frame.

[0007] Preferably, the water tank assembly also includes a drain pipe and a flush valve. The drain pipe is fixed at the bottom of the water tank and is connected to the interior of the water tank at the lower side of the conical filter. A slag discharge port is provided at the bottom center of the conical filter, and the flush valve is connected to the slag discharge port.

[0008] Preferably, the water tank assembly also includes a water supply pipe, which is fixed to and communicated with the upper end of the water storage tank, and is connected to a condensate drain pipe of the central air conditioner.

[0009] Preferably, the cold and hot medium circulation system further comprises a mounting frame for fixing the fan A. The mounting frame is also used to fix the heat-conducting copper tube A. The outer side of the mounting frame is fixed to the frame.

[0010] Preferably, the cold and hot medium circulation system also includes two water distributors, and the two ends of any heat-conducting copper tube A are respectively connected to the two water distributors, and the two water distributors are respectively used to connect the water inlet end of water pump A and the water outlet end of water pump B.

[0011] Preferably, the heating assembly includes fins B, a heat-conducting copper tube B and a connector A. There are multiple fins B, all of which are distributed longitudinally. Multiple fins B are equidistantly surrounded and fixed on the side wall of the water tank and are located in the middle and lower section of the water tank. The heat-conducting copper tube B is spirally sleeved on the outside of the water tank and evenly passes through all the fins B. The fins B are used to transfer the heat of the heat-conducting copper tube B to the water tank. The connector A is located on one side arm of the water tank and connects the two ends of the heat-conducting copper tube B. The connector A is connected to the high-temperature evaporator pipeline of the central air conditioner.

[0012] Preferably, the refrigeration assembly includes a heat-conducting copper tube C, fins C and a connector B. The heat-conducting copper tube C is inserted into the water tank in a bent shape and is located above the heat-conducting copper tube B. There are multiple fins C. The bent portion of the heat-conducting copper tube C passes through the fins C. The fins C absorb the heat inside the water tank and transfer it to the heat-conducting copper tube C. The two ends of the heat-conducting copper tube C are outside the water tank. The connector B connects the two ends of the heat-conducting copper tube C. The connector B is connected to the low-temperature evaporator pipeline of the central air conditioner.

[0013] Preferably, a fan B is also fixedly installed in the frame, and the fan B is located below the water tank and is used to blow air to all the fins B.

[0014] Preferably, an electrical cabinet is also fixedly installed in the frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The central air-conditioning automatic energy-saving water cooling device is provided with a cold and hot medium circulation system and a water tank assembly. The water tank stores the central air-conditioning condensed water on a daily basis, maintains a suitable liquid level, and replenishes water regularly when it is short of water. The water quality is clean and not easy to scale. The cold and hot medium circulation system at the top is used to circulate the condensed water inside the water tank and cool it. The cold and hot medium circulation system at the bottom outputs the cooled condensed water to the outside, so that the fan A at the bottom is used to blow cold air to the central air-conditioning control module, so that the existing condensed water can be used to dissipate the heat of the air-conditioning control module. The heat-conducting copper tube A can also be directly inserted between the circuit boards of the control module, and with thermal conductive silicone grease, the cooled condensed water can participate in water cooling, thereby achieving the energy-saving and cooling effect of the central air-conditioning, without the need for an additional water supply, and the pollution of the condensed water to the pipeline is lower.

[0016] 2. The central air-conditioning automatic energy-saving water cooling device, generally speaking, the fins A on the top for heat dissipation can be cooled by the original cooling fan of the central air-conditioning. When there is no available circulating air, the fan A itself is used to make the cooled cooling water flow to the bottom of the water storage tank, and circulate and cool the condensed water with high temperature on the top, ensuring that it can still be used with the existing central air-conditioning outdoor unit without adding additional cooling fans, so as to realize the secondary utilization of wind power and achieve the effect of energy saving and cooling.

[0017] 3. The central air-conditioning automatic energy-saving water cooling device, by setting a refrigeration component, uses the extra cold air of the central air-conditioning refrigeration evaporator to cool the heat-conducting copper tube C, which is used to further cool the condensed water inside the water storage tank, and then the cooling water used for the cooling control module is at a lower temperature. Combined with the cooling capacity of the air conditioner and the reasonable use of cold air, it can achieve the effect of keeping the central air conditioner running all the time with less energy.

[0018] 4. The central air-conditioning automatic energy-saving water cooling device is equipped with a heating component. The heat-conducting copper tube B is used to regularly heat up the water tank to avoid mold growth inside the water tank and blockage. After the water tank is treated at high temperature, the scale on the inner wall can also be peeled off when cold water is supplied and discharged through the slag discharge port and flushing valve, ensuring the cleanliness of the inside of the water tank and smooth pipelines.

[0019] 5. The central air-conditioning automatic energy-saving water cooling device is provided with a fan B, which operates regularly to cool down the outside of the water storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a top view of the structure of the present invention; Figure 3 It is a front view of the structure of the present invention; Figure 4 It is a partial structural schematic diagram of the present invention; Figure 5 It is a structural diagram of the cold and hot medium circulation system and the water tank assembly of the present invention; Figure 6 It is a structural diagram of the water tank assembly of the present invention; Figure 7 It is the internal structure diagram of the water tank assembly of the present invention; Figure 8 It is a structural diagram of the other side of the interior of the water tank assembly of the present invention; Fig. 9 It is a structural sectional view of the water tank assembly of the present invention.

[0021] In the figure: 1. Frame; 2. Cold and hot medium circulation system; 201. Water pump A; 202. Water pump B; 203. Thermal copper tube A; 204. Fin A; 205. Fan A; 206. Mounting frame; 207. Water distributor; 3. Water tank assembly; 301. Water storage tank; 302. Conical filter; 303. Drain pipe; 304. Flushing valve; 305. Slag discharge port; 306. Water supply pipe; 4. Heating assembly; 401. Fin B; 402. Thermal copper tube B; 403. Connector A; 5. Refrigeration assembly; 501. Thermal copper tube C; 502. Fin C; 503. Connector B; 6. Fan B; 7. Electrical cabinet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] like Figure 1-9 As shown, a central air-conditioning automatic energy-saving water cooling device includes a frame 1. The difference from the existing one is that it also includes a cold and hot medium circulation system 2 and a water tank assembly 3 fixedly installed on the frame 1, and the cold and hot medium circulation system 2 is divided into two groups, which are respectively connected to the upper and lower ends of the water tank assembly 3; it also includes a heating assembly 4 and a refrigeration assembly 5 installed on the water tank assembly 3.

[0027] The water tank assembly 3 includes a water storage tank 301 and a conical filter screen 302 . The conical filter screen 302 is fixed to the inner bottom end of the water storage tank 301 .

[0028] The cold and hot medium circulation system 2 includes a water pump A201, a water pump B202, a heat-conducting copper tube A203, a fin A204 and a fan A205. The water pump A201 and the water pump B202 included in one of the cold and hot medium circulation systems 2 are installed on the upper part of the water tank 301. The water outlet of the water pump A201 extends to the bottom of the water tank 301 and is above the conical filter 302. The water inlet of the water pump B202 extends to the upper part of the water tank 301. The water pump A201 includes a water pump B202, a heat-conducting copper tube A203, a fin A204 and a fan A205. A201 and water pump B202 are both installed on the bottom side of the water tank 301 and are connected to the area below the conical filter 302 of the water tank 301. There are multiple heat-conducting copper tubes A203, and their two ends are respectively connected to the water pump A201 and the water pump B202. There are multiple fins A204, which are fixed together on the multiple heat-conducting copper tubes A203. The fan A205 is on one side of the fin A204, and is used to blow air to the fin A204. The fan A205 and the fin A204 are both fixed on the frame 1.

[0029] The frame 1 is installed as a whole in the central air-conditioning external unit, and the structural shape of the frame 1 can be adjusted according to the actual space, and the frame 1 is connected by angle steel, which can be customized according to the actual site.

[0030] The water storage tank 301 is made of a stainless steel tank body, and the conical filter screen 302 is welded to the inner wall thereof, and the two are integrated. The conical filter screen 302 is provided with mesh holes for drainage.

[0031] Water pump A201 and water pump B202 are controlled and operated by a central intelligent controller, and both water pump A201 and water pump B202 are low-power water pumps, which operate with low power consumption in daily life. The thermal copper tube A203 can be bent and customized according to the actual installation position, and the length specifications can also be changed, and the longest should not exceed 2m.

[0032] The water tank assembly 3 also includes a drain pipe 303 and a flush valve 304. The drain pipe 303 is fixed at the bottom of the water tank 301 and is connected to the interior of the water tank 301 at the lower side of the conical filter 302. A slag discharge port 305 is provided at the bottom center of the conical filter 302, and the flush valve 304 is connected to the slag discharge port 305.

[0033] The drain pipe 303 is connected to the solenoid valve for regularly replacing the cooling water inside the water tank 301, and can also be used to control the liquid level inside the water tank 301. The flushing valve 304 is a ball valve that can discharge large-diameter particles. When the inside of the water tank 301 is flushed, the particles can flow out from the slag discharge port 305 and be discharged through the flushing valve 304.

[0034] The water tank assembly 3 also includes a water supply pipe 306, which is fixed to and communicated with the upper end of the water storage tank 301, and the water supply pipe 306 is connected to the central air-conditioning condensate discharge pipe.

[0035] A solenoid valve is installed on the water supply pipe 306, which can be remotely controlled to open and close. When the water tank 301 needs to be replenished with water, the water supply pipe 306 can use the condensed water produced by the central air conditioner. The condensed water is relatively clean and is not easy to pollute the water tank 301.

[0036] The cold and hot medium circulation system 2 also includes a mounting frame 206 for fixing the fan A205. The mounting frame 206 is also used to fix the heat-conducting copper tube A203. The outer side of the mounting frame 206 is fixed to the frame 1.

[0037] The cold and hot medium circulation system 2 also includes two water distributors 207. Both ends of any heat-conducting copper tube A203 are respectively connected to the two water distributors 207. The two water distributors 207 are respectively used to connect the water inlet end of the water pump A201 and the water outlet end of the water pump B202.

[0038] The water distributor 207 can distribute the water in a main pipeline into multiple heat-conducting copper tubes A203.

[0039] The heating component 4 includes fins B401, heat-conducting copper tubes B402 and connectors A403. There are multiple fins B401, all of which are distributed longitudinally. Multiple fins B401 are equidistantly surrounded and fixed on the side wall of the water tank 301 and are located in the middle and lower sections of the water tank 301. The heat-conducting copper tubes B402 are spirally sleeved on the outside of the water tank 301 and evenly pass through all the fins B401. The fins B401 are used to transfer the heat of the heat-conducting copper tubes B402 to the water tank 301. The connector A403 is located on one side arm of the water tank 301 and connects the two ends of the heat-conducting copper tubes B402. The connector A403 is connected to the high-temperature evaporator pipeline of the central air conditioner.

[0040] The refrigerant of the central air conditioner will produce high-temperature and high-pressure steam after compression, and then the evaporator is used to cool down. The high temperature at this time can be distributed to a part of the connector A403 through the solenoid valve, which is used to heat the fins B401, thereby heating the inner wall of the water tank 301. The dirt on the inner wall can be peeled off at high temperature, and then cold water is added instantly, which has a better peeling effect, and both scale and stains can be processed.

[0041] The refrigeration component 5 includes a heat-conducting copper tube C501, a fin C502 and a connector B503. The heat-conducting copper tube C501 is inserted into the water tank 301 in a bent shape and is located above the heat-conducting copper tube B402. There are multiple fins C502. The bent portion of the heat-conducting copper tube C501 passes through the fin C502. The fin C502 absorbs the internal heat of the water tank 301 and transfers it to the heat-conducting copper tube C501. The two ends of the heat-conducting copper tube C501 are outside the water tank 301. The connector B503 connects the two ends of the heat-conducting copper tube C501. The connector B503 is connected to the low-temperature evaporator pipeline of the central air conditioner.

[0042] After the refrigerant of the central air conditioner is depressurized, the temperature drops sharply. A part of the cooled refrigerant can be used to cool the condensed water inside the water tank 301 through the heat-conducting copper tube C501. A temperature sensor is installed inside the water tank 301, and it can be selected whether to use external refrigerant for cooling according to the internal water temperature.

[0043] A fan B6 is also fixedly installed in the frame 1. The fan B6 is located below the water tank 301 and is used to blow air to all the fins B401.

[0044] An electrical cabinet 7 is also fixedly installed in the frame 1 .

[0045] The electrical cabinet 7 is used to install circuit boards of all control devices and various control modules.

[0046] When in use, the water supply pipe 306 is connected to the air-conditioning condensing pipe, and the water storage tank 301 stores the central air-conditioning condensed water on a daily basis. The solenoid valve is used to maintain the appropriate liquid level, and water is replenished regularly when it is lacking. The water quality is clean and not easy to scale. Generally speaking, the fins A204 used for heat dissipation on the top can use the original cooling fan of the central air-conditioning to cool down. When there is no available circulating air, its own fan A205 is used to make the cooled cooling water flow to the bottom of the water storage tank 301, and circulate and cool the condensed water with high temperature on the top, ensuring that it can still be used in conjunction with the existing central air-conditioning outdoor unit without adding additional cooling fans, realizing the secondary utilization of wind power, and using the extra cold air from the central air-conditioning refrigeration evaporator to cool the heat-conducting copper tube C501, which is used to further cool the condensed water inside the water storage tank 301, and then the cooling water used for the cooling control module is at a lower temperature, combined with the air The cooling capacity is adjusted and the cold air is used reasonably. The upper cold and hot medium circulation system 2 is used to circulate the condensed water inside the water tank 301 and cool it down. The lower cold and hot medium circulation system 2 outputs the cooled condensed water to the outside, so that the lower fan A205 is used to blow cold air to the central air-conditioning control module, so that the existing condensed water can be used to dissipate the heat of the air-conditioning control module. The thermal copper tube A203 can also be directly inserted between the circuit boards of the control module, and with thermal grease, the cooled condensed water can participate in water cooling. The thermal copper tube B402 is used to regularly heat up the water tank 301 to avoid mold growth inside the water tank 301 and blockage. After the water tank 301 is treated at high temperature, the scale on the inner wall can also be peeled off when the cold water is supplied, and discharged through the slag discharge port 305 and the flushing valve 304, ensuring that the inside of the water tank 301 is clean and the pipeline is smooth.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0048] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central air-conditioning automatic energy-saving water cooling device, comprising a frame (1), characterized in that: It also includes a cold and hot medium circulation system (2) and a water tank assembly (3) fixedly mounted on the frame (1), wherein the cold and hot medium circulation system (2) is composed of two groups, which are respectively connected to the upper and lower ends of the water tank assembly (3); and it also includes a heating assembly (4) and a refrigeration assembly (5) mounted on the water tank assembly (3); The water tank assembly (3) comprises a water storage tank (301) and a conical filter screen (302), wherein the conical filter screen (302) is fixed to the inner bottom end of the water storage tank (301); The cold and hot medium circulation system (2) comprises a water pump A (201), a water pump B (202), a heat-conducting copper tube A (203), a fin A (204) and a fan A (205), wherein the water pump A (201) and the water pump B (202) included in one cold and hot medium circulation system (2) are both installed on the upper part of the water storage tank (301), the water outlet end of the water pump A (201) extends to the bottom of the water storage tank (301) and is located above the conical filter screen (302), the water inlet end of the water pump B (202) extends to the upper part of the water storage tank (301), and the water pump A (201) and the water pump B (202) included in the other cold and hot medium circulation system (2) are installed on the upper part of the water storage tank (301). The pump A (201) and the water pump B (202) are both installed on the side of the bottom end of the water tank (301) and are connected to the area of ​​the water tank (301) below the conical filter (302). A plurality of heat-conducting copper tubes A (203) are provided, and the two ends of the heat-conducting copper tubes A (203) are respectively connected to the water pump A (201) and the water pump B (202). A plurality of fins A (204) are provided and are fixed to the plurality of heat-conducting copper tubes A (203). A fan A (205) is located on one side of the fin A (204) and is used to blow air to the fin A (204). The fan A (205) and the fin A (204) are both fixed to the frame (1).

2. The central air-conditioning automatic energy-saving water cooling device according to claim 1 is characterized in that: The water tank assembly (3) further comprises a drain pipe (303) and a flushing valve (304); the drain pipe (303) is fixed to the bottom of the water storage tank (301) and communicates with the interior of the water storage tank (301) at the lower side of the conical filter screen (302); a slag discharge port (305) is provided at the center of the bottom end of the conical filter screen (302); and the flushing valve (304) is connected to the slag discharge port (305).

3. The central air-conditioning automatic energy-saving water cooling device according to claim 2 is characterized in that: The water tank assembly (3) further comprises a water supply pipe (306), the water supply pipe (306) being fixed to and in communication with the upper end of the water storage tank (301), and the water supply pipe (306) being connected to a central air conditioning condensate drain pipe.

4. The central air-conditioning automatic energy-saving water cooling device according to claim 1 is characterized in that: The cold and hot medium circulation system (2) further comprises a mounting frame (206) for fixing the fan A (205); the mounting frame (206) is also used to fix the heat-conducting copper tube A (203); the outer side of the mounting frame (206) is fixed to the frame (1).

5. The central air-conditioning automatic energy-saving water cooling device according to claim 4 is characterized in that: The cold and hot medium circulation system (2) further comprises two water distributors (207), and the two ends of any one of the heat-conducting copper tubes A (203) are respectively connected to the two water distributors (207), and the two water distributors (207) are respectively used to connect the water inlet end of the water pump A (201) and the water outlet end of the water pump B (202).

6. The central air-conditioning automatic energy-saving water cooling device according to claim 1 is characterized in that: The heating assembly (4) comprises a fin B (401), a heat-conducting copper tube B (402) and a connector A (403). A plurality of fins B (401) are provided and are all longitudinally distributed. The plurality of fins B (401) surround and are fixed on the side wall of the water tank (301) at equal distances and are located in the middle and lower section of the water tank (301). The heat-conducting copper tube B (402) is spirally sleeved on the outside of the water tank (301) and evenly passes through all the fins B (401). The fin B (401) is used to transfer the heat of the heat-conducting copper tube B (402) to the water tank (301). The connector A (403) is located on one side arm of the water tank (301) and is connected to both ends of the heat-conducting copper tube B (402). The connector A (403) is connected to the high-temperature evaporator pipeline of the central air conditioner.

7. The central air-conditioning automatic energy-saving water cooling device according to claim 6 is characterized in that: The refrigeration assembly (5) comprises a heat-conducting copper tube C (501), fins C (502) and a connector B (503); the heat-conducting copper tube C (501) is inserted into the water tank (301) in a bent shape and is located above the heat-conducting copper tube B (402); a plurality of fins C (502) are provided; the bent portion of the heat-conducting copper tube C (501) passes through the fins C (502); the fins C (502) absorb the internal heat of the water tank (301) and transfer it to the heat-conducting copper tube C (501); the two ends of the heat-conducting copper tube C (501) are located outside the water tank (301); the connector B (503) connects the two ends of the heat-conducting copper tube C (501); and the connector B (503) is connected to the low-temperature evaporator pipeline of the central air conditioner.

8. The central air-conditioning automatic energy-saving water cooling device according to claim 7 is characterized in that: A fan B (6) is also fixedly installed in the frame (1). The fan B (6) is located below the water storage tank (301) and is used to blow air toward all the fins B (401).

9. The central air-conditioning automatic energy-saving water cooling device according to claim 1 is characterized in that: An electrical cabinet (7) is also fixedly installed in the frame (1).

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