CN115899898A - Air conditioning system integrating heat recovery and natural cooling - Google Patents

Abstract

The embodiment of the present invention discloses an air conditioning system integrating heat recovery and natural cooling, including a refrigeration module, a heat recovery module, and a heat exchanger connecting the refrigeration module and the heat recovery module. The hot air is sent to the heat exchanger, and the heat recovery module is used to circulate the cooling liquid and send the cooling liquid to the heat exchanger, and the heat exchanger is used to exchange heat between the hot air and the cooling liquid. The heat recovery module includes a water storage tank and a water source heat pump component. The water storage tank is used to store coolant, and the water source heat pump component is used for cooling and heating in other rooms, and is exchanged with the coolant from the water storage tank during cooling and heating. Heat, so that the coolant absorbs heat or gives off heat and returns to the heat recovery module. The air-conditioning system solves the problem of heat energy recovery in the data center where the air-conditioning system is applied, and improves the comprehensive energy efficiency of the data center by exchanging heat between the cooling liquid in the heat recovery module and the hot air.

Description

Air conditioning system with integrated heat recovery and free cooling

technical field

The invention relates to the technical field of air conditioning, in particular to an air conditioning system integrating heat recovery and natural cooling.

Background technique

An air conditioner is an air conditioner, which refers to a device that uses manual means to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in a building or structure.

In the prior art, an air conditioner includes a compressor that compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant, a condenser that cools the gaseous refrigerant into a high-pressure liquid refrigerant, a throttle valve that adjusts the pressure of the liquid refrigerant, and is used to convert the low-temperature liquid refrigerant into Evaporator of low temperature gaseous refrigerant. Among them, the condenser is one of the key structures for heat conversion. In hot weather, the condenser needs to operate at a high load, which not only consumes a lot of energy but also has limited conversion efficiency.

Contents of the invention

Based on this, it is necessary to provide an air conditioning system integrating heat recovery and natural cooling that can solve the above problems.

An air-conditioning system integrating heat recovery and natural cooling, comprising a refrigeration module, a heat recovery module, and a heat exchanger connecting the refrigeration module and the heat recovery module, the refrigeration module is used for indoor cooling and for cooling the room The hot gas is sent to the heat exchanger, and the heat recovery module is used for circulating the cooling liquid and sending the cooling liquid to the heat exchanger, and the heat exchanger is used for exchanging the hot gas with the cooling liquid hot;

The heat recovery module includes a water storage tank and a water source heat pump assembly, the water storage tank is used to store the cooling liquid, the water source heat pump assembly is used for cooling and heating in other rooms, and is used for cooling and heating The cooling liquid from the water storage tank exchanges heat so that the cooling liquid absorbs heat or releases heat and flows back into the heat recovery module.

In some embodiments of the air conditioning system, the water storage tank is used to store the coolant from the heat exchanger and after exchanging heat with the hot air, and the water source heat pump assembly is used to receive the storage tank The cooling liquid in the water tank absorbs the heat energy in the cooling liquid for indoor heating, and then sends the cooling liquid to the heat exchanger.

In some embodiments of the air conditioning system, the heat recovery module further includes a first pipeline, a second pipeline, a third pipeline, and a fourth pipeline, and the first pipeline and the second pipeline are both connected to the heat exchanger. The heater is connected to the water storage tank, the third pipe is connected to the water storage tank and the water source heat pump assembly, and the fourth pipe is connected to the water source heat pump assembly to the water storage tank.

In some embodiments of the air conditioning system, the air conditioning system further includes a heater disposed in the water storage tank, and the heater is used for heating the cooling liquid.

In some embodiments of the air conditioning system, the air conditioning system further includes a cooling tower for receiving and cooling the cooling liquid from the heat exchanger, and the water storage tank for storing the cooling liquid After the cooling liquid, and send the cooling liquid to the heat exchanger and the water source heat pump assembly, the water source heat pump assembly is used to receive the cooling liquid in the water storage tank, and make the The cooling liquid absorbs the heat energy generated when the room is refrigerated, and then transports the cooling liquid to the cooling tower.

In some embodiments of the air conditioning system, the air conditioning system further includes a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline, and the first pipeline communicates with all The heat exchanger and the cooling tower, the second pipeline communicates with the cooling tower and the water storage tank, the third pipeline communicates with the water storage tank and the water source heat pump assembly, and the first Four pipelines communicate with the water storage tank and the heat exchanger, and the fifth pipeline communicates with the water source heat pump assembly and the cooling tower.

In some embodiments of the air-conditioning system, the air-conditioning system further includes a first pump body that drives the cooling liquid to flow, and the first pump body is located on the third pipeline;

One end of the fourth pipeline communicates with the heat exchanger, the other end overlaps the third pipeline, and is located between the first pump body and the water source heat pump assembly;

One end of the fifth pipeline communicates with the water source heat pump assembly, and the other end overlaps the first pipeline.

In some embodiments of the air conditioning system, the air conditioning system further includes a sixth pipeline and a seventh pipeline, and both the sixth pipeline and the seventh pipeline communicate with the heat exchanger and the water tank;

One end of the sixth pipeline communicates with the water storage tank, and the other end overlaps the first pipeline and is located between the water source heat pump assembly and the heat exchanger;

One end of the seventh pipeline communicates with the water storage tank, and the other end overlaps the fourth pipeline.

In some embodiments of the air conditioning system, the air conditioning system further includes a first three-way valve for controlling the flow direction of the coolant, and the first three-way valve is arranged between the fifth pipeline and the The lap joint of the first pipeline.

In some embodiments of the air conditioning system, the air conditioning system further includes an eighth pipeline connecting the water source heat pump assembly and the water storage tank, one end of the eighth pipeline is overlapped with the first on the pipeline, and is located between the cooling tower and the water source heat pump assembly, and the other end is lapped on the second pipeline;

The air conditioning system further includes a second three-way valve, a third three-way valve and a second pump body, the second three-way valve is arranged at the overlap between the sixth pipeline and the first pipeline, The third three-way valve is arranged at the overlap between the eighth pipeline and the first pipeline, and the second pump body is arranged on the seventh pipeline.

In some embodiments of the air conditioning system, the refrigeration module includes a condenser and a regulating valve, the condenser is used to condense the hot gas into a liquid refrigerant, and the regulating valve is used to regulate the flow of the hot gas to the condenser device or the flow rate of the heat exchanger.

In some embodiments of the air conditioning system, the refrigeration module further includes a compressor, a fluorine pump, a first parallel pipeline, a second parallel pipeline, a first valve body, and a second valve body, and the first parallel pipeline The pipeline is connected to both ends of the compressor, the first valve body is arranged on the first parallel pipeline, the second parallel pipeline is connected to both ends of the fluorine pump, and the second valve The body is arranged on the second parallel pipeline.

Implementing the embodiment of the present invention will have the following beneficial effects:

The air-conditioning system provided by the above embodiments solves the problem of heat energy recovery in the data center where the air-conditioning system is applied, and improves the overall energy efficiency of the data center by exchanging heat between the cooling liquid in the heat recovery module and the hot air.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

in:

Fig. 1 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Fig. 2 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Fig. 3 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Fig. 4 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Fig. 5 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Fig. 6 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Fig. 7 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Fig. 8 is a schematic structural diagram of an air conditioning system provided by an embodiment.

Reference signs:

10 - air conditioning system;

100-refrigeration module;

111-condenser, 112-compressor, 113-fluorine pump, 114-evaporator, 115-outdoor fan, 116-indoor fan, 117-accumulator;

121-regulating valve, 122-three-way valve body;

131-the first valve body, 132-the second valve body, 133-the third valve body, 134-the fourth valve body;

200 - heat recovery module;

212-water storage tank, 214-heater, 216-water source heat pump assembly, 218-cooling tower;

221-the first pipeline, 222-the second pipeline, 223-the third pipeline, 224-the fourth pipeline;

231-first pipeline, 232-second pipeline, 233-third pipeline, 234-fourth pipeline, 235-fifth pipeline, 236-sixth pipeline, 237-seventh pipeline, 238 - Eighth pipeline;

241-the first pump body, 242-the second pump body;

251-the first check valve, 252-the second check valve, 253-the third check valve, 254-the fourth check valve;

261-the first three-way valve, 262-the second three-way valve, 263-the third three-way valve;

300 - Heat exchanger.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, are constructed and operate in a particular orientation and therefore are not to be construed as limitations on embodiments of the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a Replaceable connection, or integral connection, can be mechanical connection or electrical connection, direct connection or indirect connection through an intermediary, or internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention in specific situations.

Please refer to FIGS. 1-8 , an embodiment of the present invention provides an air conditioning system 10 integrating heat recovery and natural cooling, including a refrigeration module 100 , a heat recovery module 200 and a heat exchanger 300 connecting the refrigeration module 100 and the heat recovery module 200 , the refrigeration module is used for indoor cooling and the hot air generated during indoor cooling is sent to the heat exchanger 300, the heat recovery module 200 is used for circulating cooling liquid and sending the cooling liquid to the heat exchanger 300, and the heat exchanger 300 is used for cooling the hot gas Exchange heat with coolant. The heat recovery module 200 includes a water storage tank 212 and a water source heat pump assembly 216. The water storage tank 212 is used to store cooling liquid, and the water source heat pump assembly 216 is used for cooling and heating in other rooms. The cooling liquid in the tank 212 exchanges heat, so that the cooling liquid absorbs heat or releases heat and returns to the heat recovery module 200 .

According to the air conditioning system 10 provided in the above-mentioned embodiment, the refrigeration module 100 sends the high-temperature and high-pressure hot gas generated during indoor cooling to the heat exchanger 300, and the cooling liquid is sent to the heat exchanger 300 through the heat recovery module 200. The liquids exchange heat with each other in the heat exchanger 300, the high-temperature and high-pressure hot gas releases heat and converts it into a liquid refrigerant, and the cooling liquid absorbs the heat to raise its temperature. At the same time, the water source heat pump assembly 216 cools or heats other indoors according to the demand.

When the water source heat pump component 216 is heating, the cooling liquid whose temperature rises after heat exchange by the heat exchanger 300 enters the water source heat pump component 216, and the water source heat pump component 216 can absorb the heat in the cooling liquid for indoor heating, and the absorbed heat The cooling liquid can be sent to the heat exchanger 300 again.

When the water source heat pump component 216 is cooling, the high-temperature coolant after heat exchange by the water source heat pump component 216 and the high-temperature coolant after heat exchange by the heat exchanger 300 pass through the cooling tower for cooling, and the cooled low-temperature coolant then flows through the water storage tank 212 , through the first pump body 241 to deliver to the heat exchanger 300 or the water source heat pump assembly 216 again for heat exchange, thus completing the cycle.

Using the air conditioning system 10 provided in the above embodiment, the heat exchanger 300 is fully utilized through the heat exchange between the coolant in the heat recovery module 200 and the hot air, which solves the problem of excessive power distribution load of the cooling module in summer and increases the IT power distribution load , to increase output.

In the following, for the convenience of explanation, high-temperature coolant, medium-temperature coolant, and low-temperature coolant are used to respectively represent the state of the coolant after each heat exchange. Generally speaking, after the coolant enters the heat exchanger 300, the medium-temperature coolant is obtained, the cooled coolant is a low-temperature coolant, and the water-source heat pump assembly 216 in the heating state is heated to obtain a low-temperature coolant. High-temperature coolant is obtained after heat exchange by the water-source heat pump assembly 216 in a cooling state.

It can be understood that the "low temperature" and "high temperature" mentioned in the above embodiments are only used to compare the relative temperatures of the cooling liquids for easy understanding, and do not represent specific temperatures.

Furthermore, it should be noted that the water source heat pump assembly 216 mentioned in the above embodiment is a new type of heating and cooling system, and the water source heat pump assembly 216 is only schematically shown in Figures 1-8 of the description, which includes Compressors, heat exchangers and other structures. In this embodiment, the water source heat pump assembly 216 is also used for indoor cooling or heating, but the room used by the refrigeration module 100 is different.

Please refer to FIG. 1 , in one embodiment, the water storage tank 212 is used to store the cooling liquid from the heat exchanger 300 after exchanging heat with the hot air, and the water source heat pump assembly 216 is used to receive the cooling liquid in the water storage tank 212 , And absorb the heat energy in the cooling liquid for indoor heating, and then deliver the cooling liquid to the heat exchanger 300 .

Specifically, in a feasible usage scenario, the refrigeration system is used for cooling in the computer room, so as to ensure that the temperature of the computer room will not be too high in four seasons. In cold weather, the medium-temperature coolant obtained after heat exchange can be directly transported to the water storage tank 212, and then the medium-temperature coolant is transported to the water source heat pump assembly 216, and the water source heat pump assembly 216 absorbs The heat energy of the medium-temperature cooling liquid is converted into low-temperature cooling liquid, and then the low-temperature cooling liquid is delivered to the heat exchanger 300 , thus completing the cycle.

The air conditioning system 10 provided in this embodiment can not only reduce energy consumption, but also utilize heat generated during cooling.

In a specific embodiment, the heat recovery module 200 further includes a first pipeline 221, a second pipeline 222, a third pipeline 223 and a fourth pipeline 224, and the first pipeline 221 and the second pipeline 222 are both connected to the heat exchanger 300 With the water storage tank 212 , the third pipe 223 communicates with the water storage tank 212 and the water source heat pump assembly 216 , and the fourth pipe 224 communicates with the water source heat pump assembly 216 and the water storage tank 212 .

In this embodiment, the heat recovery module 200 further includes a first pump body 241 and a second pump body 242 , the first pump body 241 is located on the third pipeline 223 , and the second pump body 242 is located on the second pipeline 222 . After heat exchange, the medium-temperature coolant enters the water storage tank 212 along the first pipe 221 , and under the action of the first pump body 241 , the medium-temperature coolant enters the water source heat pump assembly 216 . After the water source heat pump assembly 216 completes heating with the medium-temperature cooling liquid, the obtained low-temperature cooling liquid flows back to the water storage tank 212 along the third pipeline 223 . Finally, under the action of the second pump body 242, the low-temperature coolant in the water storage tank 212 is delivered to the heat exchanger 300, thereby completing a cycle.

In addition, in order to complete the function of the water storage tank 212 mentioned in this embodiment, two cavities may be provided in the water storage tank 212 to store the medium-temperature cooling liquid and the low-temperature cooling liquid respectively.

Further, a first check valve 251 may be provided on the second pipeline 222 to prevent the cooling liquid from flowing back into the water storage tank 212 in the second pipeline 222 and prevent the second pump body 242 from being reversed.

In a specific embodiment, the air conditioning system 10 further includes a heater 214 disposed in the water storage tank 212, and the heater 214 is used for heating the coolant. In one usage scenario, when the load of the refrigeration module 100 is relatively low, the heat energy of the cooling liquid after heat exchange is insufficient. Then the coolant can be heated by the heater 214 to avoid the problem of low demand of the refrigeration module, insufficient recovered heat, and failure to meet the heating demand of the water source heat pump assembly 216 .

Referring to Fig. 2, in another embodiment, the air conditioning system 10 also includes a cooling tower 218, the cooling tower 218 is used to receive and cool the coolant from the heat exchanger 300, and the water storage tank 212 is used to store the cooled cooling liquid. liquid, and deliver the cooling liquid to the heat exchanger 300 and the water source heat pump assembly 216, the water source heat pump assembly 216 receives the cooling liquid in the water storage tank 212, and makes the cooling liquid absorb the heat energy generated during indoor cooling, and then sends the cooling liquid to cooling tower 218.

The air conditioning system 10 provided in this embodiment is suitable for hot weather. The medium-temperature coolant after heat exchange can be transported to the cooling tower 218 for cooling to obtain a low-temperature coolant, and then the low-temperature coolant is transported to the water storage tank 212 for further transport. To the water source heat pump assembly 216, the high temperature heat energy generated by the water source heat pump assembly 216 during cooling can exchange heat with the low temperature cooling liquid, and the low temperature cooling liquid absorbs the heat energy and converts it into a high temperature cooling liquid, and then sends the high temperature cooling liquid to the cooling tower 218 for cooling. Cooling, the low-temperature coolant obtained after cooling is finally stored in the water storage tank 212, thus completing the cycle.

In addition, the cooling tower 218 mentioned in this embodiment is a device that uses water as a circulating coolant to absorb heat from a system and discharge it to the atmosphere to reduce the temperature of the water. The cooling tower 218 uses water and air to exchange heat and cold to generate steam. The steam volatilizes and takes away heat to achieve evaporation heat dissipation, convective heat transfer, and radiation heat transfer to dissipate waste heat generated in industry or in refrigeration and air conditioning. The water temperature evaporative heat dissipation device is used to ensure the normal operation of the system. The device is generally barrel-shaped, so it is called cooling tower 218.

In a specific embodiment, the air conditioning system 10 further includes a first pipeline 231, a second pipeline 232, a third pipeline 233, a fourth pipeline 234 and a fifth pipeline 235, the first pipeline 231 communicates with The heat exchanger 300 is connected to the cooling tower 218, the second pipeline 232 is connected to the cooling tower 218 and the water storage tank 212, the third pipeline 233 is connected to the water storage tank 212 and the water source heat pump assembly 216, and the fourth pipeline 234 is connected to the water storage tank 212 The heat exchanger 300 and the fifth pipeline 235 communicate with the water source heat pump assembly 216 and the cooling tower 218 .

In this embodiment, the medium-temperature coolant after heat exchange is directly transported to the cooling tower 218 along the first pipeline 231 , and the low-temperature coolant is obtained after cooling, and then transported to the water storage tank 212 . Then the low-temperature cooling liquid can be sent to the water source heat pump assembly 216 through the third pipeline 233 for refrigeration, and the relatively high temperature cooling liquid obtained after the water source heat pump assembly 216 is refrigerated is then returned to the cooling tower 218 through the first pipeline 231 . Furthermore, the low-temperature coolant in the water storage tank 212 can also be sent to the heat exchanger 300 through the fourth pipeline 234 to complete the cycle.

In a more specific embodiment, the air conditioning system 10 further includes a first pump body 241 for driving the cooling fluid, and the first pump body 241 is located on the third pipeline 233 . One end of the fourth pipeline 234 communicates with the heat exchanger 300 , and the other end overlaps the third pipeline 233 and is located between the first pump body 241 and the water source heat pump assembly 216 . One end of the fifth pipeline 235 communicates with the water source heat pump assembly 216 , and the other end overlaps the first pipeline 231 . By adopting the pipeline overlapping structure provided in this embodiment, the interfaces of the water storage tank 212 and the water source heat pump can be reduced, and the materials required for manufacturing pipelines can be reduced, thereby reducing production costs.

Further, the fourth pipeline 234 is provided with a second check valve 252 , and the second pipeline 232 is provided with a third check valve 253 to prevent the coolant from flowing backward.

In yet another embodiment, the air conditioning system 10 further includes a sixth pipeline 236 and a seventh pipeline 237 , both of which communicate with the heat exchanger 300 and the water storage tank 212 . One end of the sixth pipeline 236 communicates with the water storage tank 212 , and the other end overlaps the first pipeline 231 and is located between the water source heat pump assembly 216 and the heat exchanger 300 . One end of the seventh pipeline 237 communicates with the water storage tank 212 , and the other end overlaps the fourth pipeline 234 . Likewise, the production cost can also be reduced by adopting the overlapping joint method provided in this embodiment.

Further, the seventh pipeline 237 is provided with a fourth check valve 254 .

According to the pipeline structure of the air conditioning system 10 provided in this embodiment, there are many possible implementation modes, which will be described in detail below through two implementation modes.

Please refer to FIG. 3 , in one embodiment, the air conditioning system 10 further includes a first three-way valve 261 for controlling the flow direction of the coolant, and the first three-way valve 261 is arranged on the fifth pipeline 235 and the first pipeline 231 of the overlap.

There are two modes of operation in this embodiment, namely cooling mode and heat recovery mode. In cooling mode, the first three-way valve 261 is switched so that the cooling tower 218 communicates with the water source heat pump assembly 216 . The coolant in the water storage tank 212 is sent to the water source heat pump assembly 216 through the third pipeline 233, and after heat exchange by the water source heat pump assembly 216, the obtained high-temperature coolant is sent to the water storage tank 212 through the cooling tower 218 to store the low-temperature coolant . Next is the heat recovery mode, the first three-way valve 261 switches to make the heat exchanger 300 communicate with the water source heat pump assembly 216 . The low-temperature coolant in the storage tank 212 is delivered to the heat exchanger 300 through the first pipeline 231 after passing through the water source heat pump, and the medium-temperature coolant obtained after heat exchange is delivered to the water storage tank 212 through the seventh pipeline 237 internal storage, so as to complete the cycle.

The air conditioning system 10 provided by this embodiment has a relatively simple structure, omitting some structures such as a pump body and a check valve, and the cost is relatively low.

Please refer to FIG. 4 , in another embodiment, the air conditioning system 10 further includes an eighth pipeline 238 connecting the water source heat pump assembly 216 and the water storage tank 212 , and one end of the eighth pipeline 238 is overlapped with the first pipeline 231 and located between the cooling tower 218 and the water source heat pump assembly 216 , and the other end overlaps the second pipeline 232 . The air conditioning system 10 also includes a second three-way valve 262, a third three-way valve 263, and a second pump body 242. The second three-way valve 262 is located at the junction of the sixth pipeline 236 and the first pipeline 231. The three-way valve 263 is arranged at the overlap between the eighth pipeline 238 and the first pipeline 231 , and the second pump body 242 is arranged on the seventh pipeline 237 .

Referring to FIG. 1 and FIG. 2 , the air-conditioning system 10 provided in this embodiment combines the features of the air-conditioning system 10 described in FIG. 1 and FIG. 2 , so it can be applied in both cold weather and hot weather.

When the air conditioning system 10 is applied in cold weather, the second three-way valve 262 is adjusted so that the heat exchanger 300 communicates with the water storage tank 212 , and the third three-way valve 263 is adjusted so that the water source heat pump assembly 216 is connected to the water storage tank 212 connected. After heat exchange, the medium-temperature coolant is delivered to the water storage tank 212 through the sixth pipeline 236 , and then delivered to the water source heat pump assembly 216 through the third pipeline 233 . Moreover, the low-temperature coolant obtained after heat exchange by the water source heat pump assembly 216 flows back to the water storage tank 212 through the eighth pipeline 238 , and then is transported to the heat exchanger 300 through the seventh pipeline 237 to complete the cycle.

When the air conditioning system 10 is used in hot weather, the second three-way valve 262 can be adjusted so that the heat exchanger 300 communicates with the water source heat pump assembly 216, and the third three-way valve 263 can be adjusted so that the water source heat pump assembly 216 communicates with the cooling tower. 218 connected. Since the aforementioned embodiments have been described in detail, details are not repeated here.

In addition, the air conditioning system 10 provided in this embodiment can also be applied in transitional weather, that is, the outside temperature is relatively high, and the water source heat pump assembly 216 needs to prepare high-temperature cooling liquid. In this situation, when the thermal energy of the cooling liquid after heat exchange is insufficient, the cooling tower 218 can use the outdoor temperature to heat the cooling liquid, and then transport the cooling liquid to the water storage tank 212 to store heat energy. In this embodiment, such a method is adopted, and the heater 214 is not required to heat the cooling liquid, thereby saving energy.

Please continue to refer to FIG. 1. In another embodiment, the refrigeration module 100 includes a condenser 111 and a regulating valve 121. The condenser 111 is used to condense the hot gas into a liquid refrigerant, and the regulating valve 121 is used to regulate the flow of the hot gas to the condenser 111 or The flow rate of the heat exchanger 300.

It can be understood that the load of the air conditioning system 10 is also different depending on the application environment of the air conditioning system 10 . In this way, the flow rate of the hot gas flowing to the condenser 111 and the heat exchanger 300 can be adjusted through the regulating valve 121 based on the actual situation.

Optionally, there are two regulating valves 121 , which are used to control the flow of hot gas to the condenser 111 and the heat exchanger 300 respectively.

Please refer to Fig. 5. In an alternative embodiment, the refrigeration module 100 includes a three-way valve body 122, which replaces the two regulating valves 121 mentioned in the above-mentioned embodiment, so as to save cost by air passage. Effect.

As a specific solution, the refrigeration module 100 also includes a compressor 112, a fluorine pump 113, a first parallel pipeline, a second parallel pipeline, a first valve body 131 and a second valve body 132, and the first parallel pipeline is connected to At both ends of the compressor 112, the first valve body 131 is arranged on the first parallel pipeline, the second parallel pipeline is connected to both ends of the fluorine pump 113, and the second valve body 132 is arranged on the second parallel pipeline.

In this way, the refrigeration module 100 can simultaneously turn on the compressor 112 and the fluorine pump 113 to achieve a better cooling effect. It is also possible to turn on only the compressor 112 or only the fluorine pump 113 based on different actual conditions.

Please refer to FIG. 6 , as an alternative embodiment, the refrigeration module 100 only includes the compressor 112 .

Please continue to refer to FIG. 5 , as a more specific solution, the refrigeration module 100 further includes an evaporator 114 , an indoor fan 116 , an outdoor fan 115 and a liquid accumulator 117 . The compressor 112 is used to inhale and compress air to obtain hot air with high temperature and high pressure, and then deliver the hot air to the condenser 111 and the heat exchanger 300 . After being cooled by the condenser 111 and the heat exchanger 300 , a high-pressure liquid refrigerant is obtained, and then the liquid refrigerant is input into the liquid receiver 117 . Further, the accumulator 117 sends the liquid refrigerant through the fluorine pump 113 to the evaporator 114, and finally the evaporator 114 evaporates the low-temperature liquid refrigerant into cold air. The outdoor fan 115 is facing the condenser 111 so as to output the heat released during condensation to the outside, and the indoor fan 116 is facing the evaporator 114 so as to input cold air into the room.

Optionally, a third valve body 133 is provided on the pipeline connected to the condenser 111 , and a fourth valve body 134 is provided on the pipeline connected to the heat exchanger 300 to prevent the liquid refrigerant from flowing back. Furthermore, a regulating valve 121 may also be provided on the pipeline connected to the evaporator 114 to regulate the pressure of the liquid refrigerant input to the evaporator 114 .

In this embodiment, the heat exchanger 300 is connected in parallel with the condenser 111 .

Preferably, the condenser 111 is an air-cooled condenser 111 .

Please refer to Fig. 7, in an alternative solution, the heat exchanger 300 is connected in parallel with the pipeline behind the condenser 111, and a three-way valve body 122 is provided at the connection, so that the hot gas that passes through the condenser 111 but is not converted Then it is sent to the heat exchanger 300.

Please refer to Fig. 8, in yet another alternative scheme, the pipeline in front of the heat exchanger 300 and the condenser 111 is connected in parallel, and a three-way valve body 122 is provided at the connection, so that the heat exchanger 300 passes through but is not transformed The hot gas is sent to the condenser 111 again.

The above two alternative solutions are relatively simple to operate, and only need to adjust the three-way valve body 122 .

The above disclosures are only preferred embodiments of the present invention, and certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims (12)

1. An air conditioning system integrating heat recovery and natural cooling is characterized by comprising a refrigeration module, a heat recovery module and a heat exchanger for connecting the refrigeration module and the heat recovery module, wherein the refrigeration module is used for indoor refrigeration and conveying hot gas generated in the indoor refrigeration to the heat exchanger, the heat recovery module is used for circulating cooling liquid and conveying the cooling liquid to the heat exchanger, and the heat exchanger is used for exchanging heat between the hot gas and the cooling liquid;

the heat recovery module comprises a water storage tank and a water source heat pump assembly, the water storage tank is used for storing the cooling liquid, and the water source heat pump assembly is used for refrigerating and heating in other rooms and exchanges heat with the cooling liquid from the water storage tank when refrigerating and heating are carried out, so that the cooling liquid absorbs heat or emits heat and flows back to the inside of the heat recovery module.

2. The air conditioning system of claim 1, wherein the reservoir is configured to store the coolant from the heat exchanger after exchanging heat with the hot gas, and the water source heat pump assembly is configured to receive the coolant in the reservoir and absorb heat energy in the coolant for indoor heating before delivering the coolant to the heat exchanger.

3. The air conditioning system of claim 2, wherein the heat recovery module further comprises a first conduit, a second conduit, a third conduit, and a fourth conduit, the first conduit and the second conduit each communicating the heat exchanger and the water reservoir, the third conduit communicating the water reservoir and the water source heat pump assembly, and the fourth conduit communicating the water source heat pump assembly and the water reservoir.

4. The air conditioning system of claim 3, further comprising a heater disposed within the reservoir for heating the cooling fluid.

5. The air conditioning system of claim 1, further comprising a cooling tower for receiving and cooling the coolant from the heat exchanger, the reservoir for storing the cooled coolant and delivering the coolant to the heat exchanger and the water source heat pump assembly for receiving the coolant in the reservoir and causing the coolant to absorb heat energy generated by cooling the room and delivering the coolant to the cooling tower.

6. The air conditioning system of claim 5, further comprising a first conduit communicating the heat exchanger with the cooling tower, a second conduit communicating the cooling tower with the reservoir tank, a third conduit communicating the reservoir tank with the water source heat pump assembly, a fourth conduit communicating the reservoir tank with the heat exchanger, and a fifth conduit communicating the water source heat pump assembly with the cooling tower.

7. The system according to claim 6, further comprising a first pump driving the flow of the cooling liquid, the first pump being located on the third pipe;

one end of the fourth pipeline is communicated with the heat exchanger, and the other end of the fourth pipeline is lapped on the third pipeline and is positioned between the first pump body and the water source heat pump assembly;

one end of the fifth pipeline is communicated with the water source heat pump assembly, and the other end of the fifth pipeline is lapped on the first pipeline.

8. The air conditioning system as claimed in claim 7, further comprising a sixth pipeline and a seventh pipeline, both of which communicate the heat exchanger and the reservoir;

one end of the sixth pipeline is communicated with the water storage tank, and the other end of the sixth pipeline is lapped on the first pipeline and is positioned between the water source heat pump assembly and the heat exchanger;

one end of the seventh pipeline is communicated with the water storage tank, and the other end of the seventh pipeline is connected to the fourth pipeline in an overlapping mode.

9. The system of claim 8, further comprising a first three-way valve configured to control a flow of the coolant, the first three-way valve being disposed at an intersection of the fifth pipe and the first pipe.

10. The air conditioning system as claimed in claim 8, further comprising an eighth pipeline connecting the water source heat pump assembly and the water storage tank, wherein one end of the eighth pipeline is connected to the first pipeline and is located between the cooling tower and the water source heat pump assembly, and the other end of the eighth pipeline is connected to the second pipeline;

the air conditioning system further comprises a second three-way valve, a third three-way valve and a second pump body, the second three-way valve is arranged at the lap joint of the sixth pipeline and the first pipeline, the third three-way valve is arranged at the lap joint of the eighth pipeline and the first pipeline, and the second pump body is arranged on the seventh pipeline.

11. The system as claimed in any one of claims 1 to 10, wherein the refrigeration module comprises a condenser for condensing the hot gas into a liquid refrigerant and a regulating valve for regulating a flow rate of the hot gas to the condenser or the heat exchanger.

12. The air conditioning system of claim 11, wherein the refrigeration module further comprises a compressor, a fluorine pump, a first parallel line connected to both ends of the compressor, a second parallel line connected to both ends of the fluorine pump, a first valve body disposed on the first parallel line, and a second valve body disposed on the second parallel line.

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