Refrigeration system

Abstract

The present disclosure provides a refrigeration system, which relates to the technical field of air conditioning. The refrigeration system includes: a refrigeration device, a first air conditioner indoor unit, a second air conditioner indoor unit, a compressor, a first electric valve and a second electric valve; the refrigeration device is connected to the first air conditioner indoor unit through a first pipe, the first air conditioner indoor unit is connected to the compressor through a second pipe, and the compressor is connected to the refrigeration device through a third pipe; the first pipe port of the second air conditioner indoor unit is connected to the first pipe through a fourth pipe, the second pipe port of the second air conditioner indoor unit is connected to the second pipe through a fifth pipe, and a sixth pipe is arranged between the third pipe and the fifth pipe; the first electric valve is arranged on the fifth pipe and is located between a first position and a second position, the first position is the connection position of the fifth pipe and the second pipe, the second position is the connection position of the fifth pipe and the sixth pipe, and the second electric valve is arranged on the sixth pipe. The refrigeration system has lower energy consumption and higher energy efficiency ratio during operation.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air conditioning, and in particular to a refrigeration system. Background Art

[0002] In the field of air conditioning technology, the design of the refrigeration system is usually independently designed for a single use environment so that the refrigeration system meets the use requirements. For example, when the use environment is a computer room, a refrigeration device and an air conditioner are usually designed to cool the computer room.

[0003] However, refrigeration systems designed for a single use environment have high energy consumption when used.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] The present disclosure provides a refrigeration system, which at least to some extent provides an energy-saving refrigeration system.

[0006] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0007] According to one aspect of the present disclosure, a refrigeration system is provided, including: a refrigeration device, a first air-conditioning indoor unit, a second air-conditioning indoor unit, a compressor, a first electric valve and a second electric valve; the refrigeration device is connected to the first air-conditioning indoor unit through a first pipe, the first air-conditioning indoor unit is connected to the compressor through a second pipe, and the compressor is connected to the refrigeration device through a third pipe; the first pipe port of the second air-conditioning indoor unit is connected to the first pipe through a fourth pipe, the second pipe port of the second air-conditioning indoor unit is connected to the second pipe through a fifth pipe, and a sixth pipe is provided between the third pipe and the fifth pipe; the first electric valve is arranged on the fifth pipe and is located between a first position and a second position, the first position is a connection position between the fifth pipe and the second pipe, the second position is a connection position between the fifth pipe and the sixth pipe, and the second electric valve is arranged on the sixth pipe.

[0008] In one embodiment of the present disclosure, the first air-conditioning indoor unit is configured in a preset use environment, and is used to cool the preset use environment to keep the temperature of the preset use environment within a preset temperature range.

[0009] In one embodiment of the present disclosure, the preset usage environment is a computer room environment.

[0010] In one embodiment of the present disclosure, the refrigeration system further includes: a third electric valve, which is configured on the first pipeline and located on a side of the connection position between the first pipeline and the fourth pipeline close to the refrigeration device.

[0011] In one embodiment of the present disclosure, the operating modes of the refrigeration system include: a first refrigeration mode, a second refrigeration mode, and a third refrigeration mode; in the first refrigeration mode, the first electric valve and the third electric valve are opened, and the second electric valve is closed, so as to cool the refrigerant liquid output by the first air-conditioning indoor unit and the second air-conditioning indoor unit through the refrigeration device; in the second refrigeration mode, the second electric valve and the third electric valve are opened, and the first electric valve is closed, so as to cool the refrigerant liquid output by the first air-conditioning indoor unit through the refrigeration device and the second air-conditioning indoor unit; in the third refrigeration mode, the second electric valve is opened, and the first electric valve and the third electric valve are closed, so as to cool the refrigerant liquid output by the first air-conditioning indoor unit through the second air-conditioning indoor unit.

[0012] In one embodiment of the present disclosure, the refrigeration system also includes: a heat exchange device, a fourth electric valve and a one-way valve; the first pipe port of the heat exchange device is connected to the fifth pipe through a seventh pipe, the connection position of the seventh pipe and the fifth pipe is located on the side of the second position away from the first electric valve, and the second pipe port of the heat exchange device is connected to the fourth pipe through an eighth pipe; the fourth electric valve is configured on the seventh pipe or the eighth pipe; the one-way valve is connected in parallel with the fourth electric valve through a pipe, and when the fourth electric valve is closed, the opening of the one-way valve is oriented so that the refrigerant passing through the heat exchange device flows out from the second pipe port of the heat exchange device.

[0013] In one embodiment of the present disclosure, the heat exchange device is a fluorine-water heat exchanger.

[0014] In one embodiment of the present disclosure, the refrigeration device includes a fin heat exchanger and / or an evaporative condenser.

[0015] In one embodiment of the present disclosure, the refrigeration device includes a fin heat exchanger and an evaporative condenser, and the input port of the fin heat exchanger is connected to the compressor through the third pipe, the output port of the fin heat exchanger is connected to the input port of the evaporative condenser, and the output port of the evaporative condenser is connected to the first air-conditioning indoor unit through the first pipe.

[0016] In one embodiment of the present disclosure, the refrigeration system further includes: a third electric valve, which is configured on the first pipe and located on the side of the connection position between the first pipe and the fourth pipe close to the refrigeration device; the operation modes of the refrigeration system include: a first refrigeration mode, a second refrigeration mode, and a third refrigeration mode; in the first refrigeration mode, the first electric valve and the third electric valve are opened, the second electric valve is closed, and the fin heat exchanger and the evaporative condenser are both opened; in the second refrigeration mode, the second electric valve and the third electric valve are opened, the first electric valve is closed, the fin heat exchanger is opened, and the evaporative condenser is closed; in the third refrigeration mode, the second electric valve is opened, the first electric valve and the third electric valve are closed, and the fin heat exchanger and the evaporative condenser are both closed.

[0017] The technical solution provided by the embodiments of the present disclosure includes at least the following beneficial effects:

[0018] The technical solution provided by the embodiment of the present disclosure can make the refrigeration system have multiple operation modes by configuring the first air-conditioning indoor unit and the second air-conditioning indoor unit, and respectively configuring the first electric valve and the second electric valve on the fifth pipe and the sixth pipe, and limiting the connection relationship between the first pipe and the sixth pipe, so as to adapt to various use environments and make the refrigeration system have high flexibility and adaptability. When the first air-conditioning indoor unit is in an environment where the ambient temperature is high and the ambient temperature needs to be cooled, and the second air-conditioning indoor unit is in an environment where the ambient temperature is low and the ambient temperature needs to be heated, the refrigerant output by the first air-conditioning indoor unit can be cooled by using the refrigeration device and the second air-conditioning indoor unit by opening the first electric valve and closing the second electric valve. Compared with cooling the refrigerant only by using the refrigeration device, the refrigerant cooled by heat exchange by the refrigeration device can be reduced, thereby reducing the energy consumption of the refrigeration device in refrigeration, achieving energy saving, and making the refrigeration system have a higher energy efficiency ratio.

[0019] Furthermore, by utilizing the environment of the first air-conditioning unit to heat the refrigerant liquid and then returning it to the second air-conditioning unit for heat exchange, it is possible to avoid additional energy consumption for heating the refrigerant liquid input to the second air-conditioning unit, thereby further reducing energy consumption and improving the energy efficiency of the system.

[0020] Furthermore, a solution is provided for reducing energy consumption and achieving energy saving by utilizing different usage environments in a refrigeration system.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0023] Figure 1 A schematic diagram showing a refrigeration system in one embodiment of the present disclosure;

[0024] Figure 2 A schematic diagram showing a refrigeration system in another embodiment of the present disclosure;

[0025] Figure 3 A schematic diagram showing a refrigeration system in another embodiment of the present disclosure;

[0026] Figure 4 A schematic diagram showing a refrigeration system in yet another embodiment of the present disclosure;

[0027] Figure 5 A schematic diagram showing a refrigeration system in yet another embodiment of the present disclosure;

[0028] Figure 6 A schematic diagram showing a refrigeration system in yet another embodiment of the present disclosure;

[0029] Figure 7 A schematic diagram showing a refrigeration system in yet another embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0031] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0032] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different air-conditioning indoor units, pipes or electric valves.

[0033] A refrigeration system in an embodiment of the present disclosure, such as Figure 1 As shown, the refrigeration system may include a refrigeration device 11 , a first air-conditioning indoor unit 12 , a second air-conditioning indoor unit 13 , a compressor 14 , a first electric valve 21 , and a second electric valve 22 .

[0034] The refrigeration device 11 is connected to the first air conditioner 12 via a first pipe 31 , the first air conditioner 12 is connected to the compressor 14 via a second pipe 32 , and the compressor 14 is connected to the refrigeration device 11 via a third pipe 33 .

[0035] The first pipe opening 131 of the second air conditioner 13 is connected to the first pipe 31 through the fourth pipe 34 , the second pipe opening 132 of the second air conditioner 13 is connected to the second pipe 32 through the fifth pipe 35 , and a sixth pipe 36 is provided between the third pipe 33 and the fifth pipe 35 .

[0036] The first electric valve 21 is arranged on the fifth pipe 35 and is located between a first position and a second position. The first position is the connection position between the fifth pipe 35 and the second pipe 32 , and the second position is the connection position between the fifth pipe 35 and the sixth pipe 36 . The second electric valve 22 is arranged on the sixth pipe 36 .

[0037] When both the first air conditioner and the second air conditioner are in a use environment that requires cooling (for example, the first air conditioner is in a machine room, and the second air conditioner is in an office building where the temperature is high and needs cooling), when the refrigeration system is working, the first electric valve 21 may be opened and the second electric valve 22 may be closed, and the refrigerant liquid after the cooling treatment of the refrigeration device 11 may flow into the first air conditioner 12 and the second air conditioner 13 through the first pipe 31 and the fourth pipe 34, respectively. The refrigerant liquid flowing into the first air conditioner 12 undergoes heat exchange in the first air conditioner 12 and then flows into the compressor 14 through the second pipe 32, and the refrigerant liquid flowing into the second air conditioner 13 undergoes heat exchange in the second air conditioner 13 and then flows into the compressor 14 through the fifth pipe 35 and the second pipe 32, and then the compressor 14 compresses and outputs the inflowing refrigerant liquid, so that the refrigerant liquid flows into the refrigeration device 11 through the third pipe 33, thereby realizing the circulation of the refrigerant liquid.

[0038] When the first air conditioner is in an environment where the temperature needs to be lowered and the second air conditioner is in an environment where the temperature needs to be raised (for example, the first air conditioner is in a machine room and the second air conditioner is in an office building where the temperature is relatively low and the indoor temperature needs to be raised), when the refrigeration system is working, the first electric valve 21 may be closed and the second electric valve 22 may be opened, and the refrigerant flowing into the first air conditioner 12 undergoes heat exchange in the first air conditioner 12 and then flows into the compressor 14 through the second pipe 32. Then, the compressor 14 compresses and outputs the refrigerant flowing in, so that the refrigerant flows into the refrigeration device 11 through the third pipe 33 and into the second air conditioner 13 through the sixth pipe 36 and the fifth pipe 35. The refrigerant entering the refrigeration device 11 undergoes heat exchange in the refrigeration device 11 to achieve cooling and then re-enters the first air conditioner 12 through the first pipe 31. The refrigerant entering the second air conditioner 13 undergoes heat exchange in the second air conditioner 13 to achieve cooling and then re-flows into the first air conditioner 12 through the fourth pipe 34 and the first pipe 31 to complete the circulation of the refrigerant.

[0039] By configuring the first air conditioner indoor unit and the second air conditioner indoor unit, configuring the first electric valve and the second electric valve on the fifth pipe and the sixth pipe respectively, and limiting the connection relationship between the first pipe and the sixth pipe, the refrigeration system can have multiple operation modes, so as to adapt to multiple use environments, and make the refrigeration system have high flexibility and adaptability. When the first air conditioner indoor unit is in an environment where the ambient temperature is high and the ambient temperature needs to be cooled, and the second air conditioner indoor unit is in an environment where the ambient temperature is low and the ambient temperature needs to be heated, the refrigerant output by the first air conditioner indoor unit can be cooled by using the refrigeration device and the second air conditioner indoor unit by opening the first electric valve and closing the second electric valve. Compared with cooling the refrigerant liquid by only using the refrigeration device, the refrigerant liquid that is cooled by heat exchange in the refrigeration device can be reduced, thereby reducing the energy consumption of the refrigeration device in refrigeration, achieving energy saving, and making the refrigeration system have a higher energy efficiency ratio.

[0040] Furthermore, by utilizing the environment of the first air-conditioning unit to heat the refrigerant liquid and then returning it to the second air-conditioning unit for heat exchange, it is possible to avoid additional energy consumption for heating the refrigerant liquid input to the second air-conditioning unit, thereby further reducing energy consumption and improving the energy efficiency of the system.

[0041] Furthermore, a solution is provided for reducing energy consumption and achieving energy saving by utilizing different usage environments in a refrigeration system.

[0042] In one embodiment, the first air conditioner indoor unit 12 is configured in a preset use environment, and is used to cool the preset use environment to keep the temperature of the preset use environment within a preset temperature range. The embodiments of the present disclosure do not limit the specific use environment of the preset use environment, and any use environment that needs to be cooled to ensure that the temperature is within the preset temperature range can be the preset use environment.

[0043] The specific temperature range of the preset temperature range is limited by the embodiments of the present disclosure and can be determined according to the preset use environment. For example, if the preset use environment is a computer room, the preset temperature range can be (24, 26) degrees Celsius or (20, 28) degrees Celsius.

[0044] In one embodiment, Figure 2 As shown, the refrigeration system Figure 1 The refrigeration system shown may further include: a third electric valve 23 , which is arranged on the first pipe 31 and located on a side of the connection position between the first pipe 31 and the fourth pipe 34 close to the refrigeration device 11 .

[0045] In one embodiment, Figure 2 The operation modes of the refrigeration system shown may include: a first refrigeration mode, a second refrigeration mode, and a third refrigeration mode.

[0046] In the first cooling mode, the first electric valve 21 and the third electric valve 23 are opened, and the second electric valve 22 is closed, so that the refrigerant output from the first air conditioner indoor unit and the second air conditioner indoor unit can be cooled by the refrigeration device.

[0047] When the refrigeration system is running, the first electric valve 21 and the third electric valve 23 are opened, and the second electric valve 22 is closed. The circulation process of the refrigerant can be seen in the above Figure 1 In the corresponding refrigeration system, the circulation process of the refrigerant liquid when the first electric valve 21 is opened and the second electric valve 22 is closed.

[0048] It should be noted that, in the first cooling mode, the refrigeration device 11, the first air-conditioning indoor unit 12, the second air-conditioning indoor unit 13, and the compressor 14 are all in the started state.

[0049] In the second cooling mode, the second electric valve 22 and the third electric valve 23 are opened, and the first electric valve 21 is closed, so that the refrigerant output from the first air conditioner indoor unit is cooled by the refrigeration device and the second air conditioner indoor unit.

[0050] When the refrigeration system is running, the second electric valve 22 and the third electric valve 23 are opened, and the first electric valve 21 is closed. The circulation process of the refrigerant can be seen in the above Figure 1 In the corresponding refrigeration system, the second electric valve 22 is opened and the first electric valve 21 is closed.

[0051] It should be noted that, in the second cooling mode, the refrigeration device 11, the first air-conditioning indoor unit 12, the second air-conditioning indoor unit 13, and the compressor 14 are all in the started state.

[0052] In the third cooling mode, the second electric valve 22 is opened, and the first electric valve 21 and the third electric valve 23 are closed, so that the refrigerant output from the first air conditioner indoor unit is cooled by the second air conditioner indoor unit.

[0053] When the refrigeration system is running, the second electric valve 22 is opened, and the first electric valve 21 and the third electric valve 23 are closed. The refrigerant flowing out of the first air-conditioning unit 12 enters the compressor 14 through the second pipe 32. The compressor compresses the refrigerant and outputs it through the third pipe 33. Since the third electric valve is closed, the refrigerant cannot flow into the refrigeration device 11, but enters the second air-conditioning unit 13 through the third pipe 33, the sixth pipe 36, and the fifth pipe 35. After heat exchange in the second air-conditioning unit 13, the refrigerant flows back into the first air-conditioning unit 12 through the fourth pipe 34 and the first pipe 31.

[0054] If the temperature of one of the first air-conditioning indoor unit 12 and the second air-conditioning indoor unit 13 in the use environment is relatively high and needs to be cooled down, while the temperature of the other is relatively low and needs to be heated up, the third cooling mode may be used.

[0055] It should be noted that, in the third cooling mode, the first air-conditioning indoor unit 12, the second air-conditioning indoor unit 13, and the compressor 14 are all in the started state, and the refrigeration device 11 may be in the turned-off state.

[0056] Assuming that the use environment of the first air conditioner indoor unit 12 is a machine room and the use environment of the second air conditioner indoor unit 13 is an office, the refrigeration system can adopt the first refrigeration mode in summer and the second refrigeration mode or the third refrigeration mode in winter.

[0057] Figure 2 The corresponding operating mode of the refrigeration system may also include a fourth refrigeration mode. In the fourth refrigeration mode, the first electric valve 21 and the second electric valve 22 are closed, and the third electric valve 23 is opened, so that the refrigerant output by the refrigeration device 11 only circulates through the first air-conditioning indoor unit 12 and the compressor 14.

[0058] In one embodiment, Figure 3 As shown, the refrigeration system Figure 1 The refrigeration system shown may further include: a heat exchange device 15 , a fourth electric valve 24 and a one-way valve 25 .

[0059] The first pipe port 151 of the heat exchange device 15 is connected to the fifth pipe 35 through the seventh pipe 37. The connection position between the seventh pipe 37 and the fifth pipe 35 is located at the second position away from the side of the first electric valve 21. The second pipe port 152 of the heat exchange device 15 is connected to the fourth pipe 34 through the eighth pipe 38.

[0060] The fourth electric valve 24 is disposed on the seventh pipe 37 or the eighth pipe 38 .

[0061] The one-way valve 25 is connected in parallel with the fourth electric valve 24 through a pipeline. When the fourth electric valve 24 is closed, the opening of the one-way valve 25 is oriented so that the refrigerant passing through the heat exchange device 15 flows out from the second pipeline port 152 of the heat exchange device 15 .

[0062] In the refrigeration system Figure 3 The corresponding embodiment is equipped with a heat exchange device 15, a fourth electric valve 24 and a one-way valve 25. When the first electric valve 21 and the second electric valve 22 are closed, the fourth electric valve 24 is opened to allow the refrigerant to flow out of the refrigeration device 11 and enter the heat exchange device 15 through the first pipe 31, the fourth pipe 34 and the eighth pipe 38, so that the refrigerant is used to cool down the object that needs to be cooled. And when the first electric valve 21 is closed and the second electric valve 22 is opened, the fourth electric valve 24 is opened and / or the one-way valve 25 is used to allow the refrigerant to be compressed and output from the compressor 14 and enter the heat exchange device 15 through the third pipe 33 (the refrigerant compressed from the compressor 14 has a higher temperature), the sixth pipe 36, the fifth pipe 35 and the seventh pipe 37, so that the refrigerant is used to heat up the object that needs to be heated up.

[0063] In one embodiment, the heat exchange device 15 is a fluorine water heat exchanger. In summer, cold water can be produced by opening the fourth electric valve 24 when the first electric valve 21 is open and the second electric valve 22 is closed; and in winter, hot water can be produced by opening the fourth electric valve 24 and / or using the one-way valve 25 when the first electric valve 21 is closed and the second electric valve 22 is open.

[0064] When the heat exchange device 15 is a fluorine-water heat exchanger, the fluorine-water heat exchanger further includes a water inlet and a water outlet, and a water pump is arranged on the pipeline connected to the water inlet or the water outlet to realize water circulation.

[0065] It should be noted that Figure 3 The corresponding refrigeration system is Figure 1 The corresponding refrigeration system is described based on the actual Figure 4 As shown, the refrigeration system Figure 2 The refrigeration system shown in FIG. 1 may also include: a heat exchange device 15, a fourth electric valve 24 and a one-way valve 25. The connection relationship between the heat exchange device 15, the fourth electric valve 24 and the one-way valve 25 in the refrigeration system is similar to that in FIG. Figure 3 The refrigeration system shown is the same and will not be described again here.

[0066] It should be noted that Figure 3 and Figure 4 The fourth electric valve 24 is depicted as being disposed on the eighth pipeline 38 for exemplary purposes only. In fact, the fourth electric valve 24 may also be disposed on the seventh pipeline 37 .

[0067] In the refrigeration system Figure 3 or Figure 4 The corresponding embodiment configures the heat exchange device 15, the fourth electric valve 24 and the one-way valve 25 in a manner that can further utilize the waste heat in the refrigeration system and avoid the need for additional temperature increase treatment for the refrigerant flowing into the heat exchange device 15, thereby reducing overall energy consumption and improving economic efficiency. It also has certain benefits to the environment (coal is usually used to heat water, but coal burning has a high degree of environmental pollution, while using waste heat in the environment where the air conditioner is located to heat water can reduce coal burning to a certain extent and reduce pollution to the environment).

[0068] The embodiments of the present disclosure do not limit what kind of device the refrigeration device 11 in the above-mentioned embodiments is, and any device that can cool the refrigerant liquid can be used as the refrigeration device 11 .

[0069] In one embodiment, the refrigeration device 11 includes a fin heat exchanger and / or an evaporative condenser.

[0070] Taking the refrigeration device 11 including a fin heat exchanger and an evaporative condenser as an example, the embodiments of the present disclosure do not limit how the fin heat exchanger and the evaporative condenser are connected in the refrigeration system.

[0071] In one embodiment, Figure 5 As shown, in Figure 2 On the basis of the refrigeration system shown, taking the refrigeration device 11 including the fin heat exchanger 16 and the evaporative condenser 17 as an example, the input port 161 of the fin heat exchanger 16 is connected to the compressor 14 through the third pipe 33, the output port 162 of the fin heat exchanger 16 is connected to the input port 171 of the evaporative condenser 17, and the output port 172 of the evaporative condenser 17 is connected to the first air-conditioning indoor unit 12 through the first pipe 31.

[0072] exist Figure 5 In the corresponding refrigeration system, the refrigerant is first subjected to heat exchange and cooling treatment by the fin heat exchanger 16, and then subjected to heat exchange and cooling treatment by the evaporative condenser 17. This allows the evaporative condenser 17 to use less water when conducting heat exchange and cooling treatment on the refrigerant, thereby reducing the generation of scale in the evaporative condenser 17 and alleviating the pressure of the evaporative condenser 17 on heat exchange and cooling of the refrigerant. Furthermore, by means of two-stage heat exchange and cooling by the fin heat exchanger 16 and the evaporative condenser 17, the entire refrigeration system can have a higher refrigeration efficiency.

[0073] It should be noted that Figure 5 The corresponding refrigeration system is Figure 1 The further definition of the refrigeration device 11 including the fin heat exchanger and the evaporative condenser based on the corresponding refrigeration system is only exemplary. In fact, Figure 2 , Figure 3 and Figure 4 In the corresponding refrigeration system, the refrigeration device 11 may include a fin heat exchanger and an evaporative condenser, and the connection relationship between the fin heat exchanger and the evaporative condenser in the refrigeration system is the same as Figure 5 The corresponding refrigeration system is the same and will not be described again here.

[0074] In one embodiment, the fin heat exchanger may include a fin heat exchange device and a fan, wherein the fan is used to accelerate the heat exchange rate of the refrigerant in the fin heat exchange device.

[0075] In one embodiment, the evaporative condenser may include an evaporative condensing device and a fan, wherein the fan is used to accelerate the heat exchange rate of the refrigerant in the evaporative condensing device.

[0076] When the refrigeration device 11 includes a fin heat exchanger and an evaporative condenser, the fin heat exchanger and the evaporative condenser can both be in the started state to cool the refrigerant liquid, or one of the fin heat exchanger and the evaporative condenser can be in the started state to cool the refrigerant liquid, and the other can be in the turned-off state (wherein, the fin heat exchanger in the turned-off state can mean that the corresponding fan is in the turned-off state, and the evaporative condenser in the turned-off state can mean that the water pump and / or the corresponding fan used to support the spraying of the refrigerant liquid pipeline are in the turned-off state).

[0077] Figure 5 The corresponding refrigeration system is Figure 2 Based on the corresponding refrigeration system, Figure 5 The corresponding refrigeration system also has three operating modes: a first refrigeration mode, a second refrigeration mode, and a third refrigeration mode.

[0078] In each operating mode, the opening and closing states of the first electric valve 21, the second electric valve 22, and the third electric valve 23 are Figure 2 The opening and closing states of each operating mode in the corresponding refrigeration system are the same. The circulation process of the refrigerant can be seen in the above Figure 2 The description of the corresponding refrigeration system will not be repeated here.

[0079] Figure 5 In the first refrigeration mode of the corresponding refrigeration system, the first electric valve 21 and the third electric valve 23 are opened, the second electric valve 22 is closed, the fin heat exchanger 16 and the evaporative condenser 17 can both be opened. If the refrigeration pressure is small, the fin heat exchanger 16 or the evaporative condenser 17 can be closed to reduce the energy consumption of the refrigeration system.

[0080] Figure 5 In the second refrigeration mode of the corresponding refrigeration system, the second electric valve 22 and the third electric valve 23 are opened, and the first electric valve 21 is closed. Since the second air conditioner indoor unit 13 can assist in refrigeration in the second refrigeration mode, the refrigeration pressure of the refrigeration system is small, and the fin heat exchanger 16 can be configured to be opened and the evaporative condenser 17 can be closed to reduce the overall energy consumption of the refrigeration system. If the refrigeration pressure is still large, the evaporative condenser 17 can be configured to be opened and the fin heat exchanger 16 can be closed, or both the evaporative condenser 17 and the fin heat exchanger 16 can be opened.

[0081] Figure 5 In the third refrigeration mode of the corresponding refrigeration system, the first electric valve 21 and the third electric valve 23 are closed, the second electric valve 22 is opened, and the fin heat exchanger 16 and the evaporative condenser 17 can be both closed. Since the third electric valve 23 is in a closed state, the refrigerant will not flow out after passing through the fin heat exchanger 16 and the evaporative condenser 17. Therefore, in the third refrigeration mode, the fin heat exchanger 16 and the evaporative condenser 17 are not in the circulation loop of the refrigerant. Closing the fin heat exchanger 16 and the evaporative condenser 17 can reduce the energy consumption of the refrigeration system without affecting the refrigeration system to achieve its functions.

[0082] Figure 5 The corresponding operating mode of the refrigeration system may also include a fourth refrigeration mode. In the fourth refrigeration mode, the first electric valve 21 and the second electric valve 22 are closed, and the third electric valve 23 is opened. The fin heat exchanger 16 and the evaporative condenser 17 may both be opened, or the fin heat exchanger 16 may be opened and the evaporative condenser 17 may be closed, or the fin heat exchanger 16 may be closed and the evaporative condenser 17 may be opened.

[0083] The use of a two-stage refrigeration device, namely, a fin heat exchanger 16 and an evaporative condenser 17, for refrigeration can make the system have a higher refrigeration efficiency. Similarly, when the refrigeration pressure of the system is low, the evaporative condenser 17 can be turned off and the water in the evaporative condenser 17 can be drained to avoid damage to the evaporative condenser 17 due to low-temperature freezing. Reducing the use of the evaporative condenser 17 can also reduce the scale condensed on the pipes in the evaporative condenser 17, reduce the maintenance frequency, and extend the service life.

[0084] In one embodiment, Figure 6 As shown, the refrigeration system Figure 2 The corresponding refrigeration system further includes: a fluorine pump 18 , a fifth electric valve 26 , a sixth electric valve 27 and a seventh electric valve 28 . The energy consumption level of the fluorine pump 18 is lower than that of the compressor 14 .

[0085] The fluorine pump 18 is connected in parallel with the third electric valve 23 through a pipeline to form a bypass of the third electric valve 23. The fifth electric valve 26 is arranged in the bypass of the fluorine pump 18 to control the on-off state of the bypass. The fifth electric valve 26 can be arranged on one side of the input port of the fluorine pump 18 (the pipe port close to the refrigeration device 11 of the two pipe ports connecting the fluorine pump 18 and the pipe is the input port), or on one side of the output port of the fluorine pump 18. The embodiments of the present disclosure are not limited to this ( Figure 6 The figure is drawn based on an example in which the fifth electric valve 26 is arranged on one side of the input port of the fluorine pump 18).

[0086] A ninth pipeline 39 is provided between the second pipeline 32 and the third pipeline 33 . The sixth electric valve 27 is provided on the ninth pipeline 39 to control the on-off state of the ninth pipeline 39 .

[0087] The seventh electric valve 28 is disposed on the second pipe and is located at a first position (a connection position between the fifth pipe 35 and the second pipe 32 ) close to the compressor 14 .

[0088] By opening the sixth electric valve 27 and closing the seventh electric valve 28, the compressor 14 can be excluded from the circulation path of the refrigerant in the refrigeration system.

[0089] When the refrigeration system is running, the refrigeration demand is low and the refrigeration pressure is low. The third electric valve 23 and the seventh electric valve 28 can be closed and the fifth electric valve 26 and the sixth electric valve 27 can be opened so that the refrigerant does not need to pass through the compressor 14 during circulation. At this time, the compressor 14 can be closed and the fluorine pump 18 can be opened to circulate the refrigerant, thereby reducing energy consumption.

[0090] When the third electric valve 23 and the seventh electric valve 28 are closed, the fifth electric valve 26 and the sixth electric valve 27 are opened, the compressor 14 is closed, and the fluorine pump 18 is opened, if the first electric valve 21 and / or the second electric valve 22 are opened, the refrigerant liquid can pass through the second air-conditioning unit 13 during circulation; if the first electric valve 21 and the second electric valve 22 are closed, the refrigerant liquid output by the refrigeration device 11 enters the bypass where the fluorine pump 18 is located through the first pipe 31, and then enters the first air-conditioning unit 12 through the first pipe 31, and then flows back to the refrigeration device 11 through the second pipe, the ninth pipe 39, and the third pipe 33.

[0091] It should be noted that Figure 6 The corresponding refrigeration system is Figure 2 The corresponding refrigeration system is described based on Figure 4 , Figure 5The corresponding refrigeration system may also include: a fluorine pump 18, a fifth electric valve 26, a sixth electric valve 27 and a seventh electric valve 28. The connection relationship between the fluorine pump 18, the fifth electric valve 26, the sixth electric valve 27 and the seventh electric valve 28 in the refrigeration system is the same as Figure 6 The refrigeration system is the same as that shown in FIG. 1 and will not be described in detail here.

[0092] By configuring a fluorine pump 18 in the refrigeration system, the fluorine pump 18 can be used to support the operation of the refrigeration system when the refrigeration demand is small and the refrigeration pressure of the refrigeration system is small. Compared with using the compressor 14 to support the operation of the refrigeration system, the energy consumption of the refrigeration system can be reduced.

[0093] In one embodiment, Figure 7 As shown, the refrigeration system Figure 5 The refrigeration system shown may further include: a heat exchange device 15 , a fourth electric valve 24 , a one-way valve 25 , a fluorine pump 18 , a fifth electric valve 26 , a sixth electric valve 27 and a seventh electric valve 28 .

[0094] The connection relationship between the heat exchange device 15, the fourth electric valve 24, and the one-way valve 25 in the refrigeration system can be seen in Figure 4 The description of the corresponding refrigeration system will not be repeated here.

[0095] The connection relationship between the fluorine pump 18, the fifth electric valve 26, the sixth electric valve 27 and the seventh electric valve 28 in the refrigeration system can be seen in Figure 6 The description of the corresponding refrigeration system will not be repeated here.

[0096] The refrigeration system in the embodiment of the present disclosure realizes flexible changes in the refrigeration mode by opening and closing the electric valves configured at different positions, and opening and closing between various devices in the system, so as to cope with different usage environments and different seasons, thereby achieving energy saving.

[0097] use Figure 7 Corresponding to the refrigeration system, when the first air-conditioning indoor unit is used in a computer room and the second air-conditioning indoor unit is used in an office, the energy consumption of computer room air conditioning refrigeration can be reduced by about 40%, and the total energy consumption of office cooling and heating can be reduced by about 80%.

[0098] Figure 7 The corresponding refrigeration system has a higher refrigeration energy efficiency ratio (greater than 5.5, while the refrigeration energy efficiency ratio of the traditional air-cooling air-conditioning refrigeration system is about 3.0), and has a significant energy-saving effect. Figure 7 The corresponding cooling system has the ability to utilize environmental waste heat. Therefore, in winter, the waste heat from the computer room can be used for office heating, which can save 80% of the electricity for office heating.

[0099] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The description and examples are to be regarded as exemplary only, and the true scope of the present disclosure is indicated by the appended claims.

Claims

1. A refrigeration system, characterized in that: include: A refrigeration device, a first air conditioner indoor unit, a second air conditioner indoor unit, a compressor, a first electric valve and a second electric valve; The refrigeration device is connected to the first air conditioner indoor unit through a first pipeline, the first air conditioner indoor unit is connected to the compressor through a second pipeline, and the compressor is connected to the refrigeration device through a third pipeline; The first pipe opening of the second air conditioner indoor unit is connected to the first pipe through a fourth pipe, the second pipe opening of the second air conditioner indoor unit is connected to the second pipe through a fifth pipe, and a sixth pipe is provided between the third pipe and the fifth pipe; The first electric valve is arranged on the fifth pipeline and is located between a first position and a second position, the first position is a connection position between the fifth pipeline and the second pipeline, the second position is a connection position between the fifth pipeline and the sixth pipeline, and the second electric valve is arranged on the sixth pipeline; It also includes: a third electric valve, which is arranged on the first pipeline and is located on a side of the connection position between the first pipeline and the fourth pipeline close to the refrigeration device; The operation modes of the refrigeration system include: a first refrigeration mode, a second refrigeration mode, and a third refrigeration mode; in the first refrigeration mode, the first electric valve and the third electric valve are opened, and the second electric valve is closed, so that the refrigerant liquid output by the first air-conditioning indoor unit and the second air-conditioning indoor unit is cooled down through the refrigeration device; in the second refrigeration mode, the second electric valve and the third electric valve are opened, and the first electric valve is closed, so that the refrigerant liquid output by the first air-conditioning indoor unit is cooled down through the refrigeration device and the second air-conditioning indoor unit; in the third refrigeration mode, the second electric valve is opened, and the first electric valve and the third electric valve are closed, so that the refrigerant liquid output by the first air-conditioning indoor unit is cooled down through the second air-conditioning indoor unit.

2. The refrigeration system according to claim 1, characterized in that: The first air conditioner indoor unit is configured in a preset use environment, and is used to cool the preset use environment to keep the temperature of the preset use environment within a preset temperature range.

3. The refrigeration system according to claim 2, characterized in that: The preset use environment is a computer room environment.

4. The refrigeration system according to claim 1, characterized in that: Also includes: A heat exchange device, a fourth electric valve and a one-way valve; The first pipe port of the heat exchange device is connected to the fifth pipe through a seventh pipe, the connection position of the seventh pipe and the fifth pipe is located on the side of the second position away from the first electric valve, and the second pipe port of the heat exchange device is connected to the fourth pipe through an eighth pipe; The fourth electric valve is arranged on the seventh pipeline or the eighth pipeline; The one-way valve is connected in parallel with the fourth electric valve through a pipeline. When the fourth electric valve is closed, the opening of the one-way valve is oriented so that the refrigerant passing through the heat exchange device flows out from the second pipeline port of the heat exchange device.

5. The refrigeration system according to claim 4, characterized in that: The heat exchange device is a fluorine-water heat exchanger.

6. The refrigeration system according to claim 1, characterized in that: The refrigeration device comprises a fin heat exchanger and / or an evaporative condenser.

7. The refrigeration system according to claim 6, characterized in that: The refrigeration device includes a fin heat exchanger and an evaporative condenser, and the input port of the fin heat exchanger is connected to the compressor through the third pipe, the output port of the fin heat exchanger is connected to the input port of the evaporative condenser, and the output port of the evaporative condenser is connected to the first air-conditioning indoor unit through the first pipe.

8. The refrigeration system according to claim 7, characterized in that: Also includes: A third electric valve is arranged on the first pipeline and is located on a side of the connection position between the first pipeline and the fourth pipeline close to the refrigeration device; The operation modes of the refrigeration system include: a first refrigeration mode, a second refrigeration mode, and a third refrigeration mode; In the first cooling mode, the first electric valve and the third electric valve are opened, the second electric valve is closed, and the fin heat exchanger and the evaporative condenser are both opened; In the second cooling mode, the second electric valve and the third electric valve are opened, the first electric valve is closed, the fin heat exchanger is opened, and the evaporative condenser is closed; In the third cooling mode, the second electric valve is opened, the first electric valve and the third electric valve are closed, and the fin heat exchanger and the evaporative condenser are both closed.

Images