Integral refrigeration system

Abstract

The embodiment of the present application provides an integrated refrigeration system, comprising: an air conditioner refrigeration cycle circuit comprising a chilled water heat exchanger; a refrigerator refrigeration cycle circuit comprising a refrigerator condenser; a chilled water tank arranged on an outdoor side, wherein the chilled water heat exchanger is arranged in the chilled water tank, and the chilled water tank is connected with the refrigerator condenser through a chilled water pipe to form a chilled water circulation circuit; and a heat dissipation component arranged on the chilled water tank or at least partially arranged in the chilled water tank.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, specifically to an integrated refrigeration system. Background Technology

[0002] In related technologies, the heat generated by the refrigerator during the cooling process is directly dissipated into the indoor environment, causing the indoor temperature to gradually rise. This, in turn, affects the refrigerator's cooling efficiency and leads to spoilage of stored items. As refrigerator capacity increases, these problems become increasingly prominent. Utility Model Content

[0003] This application provides an integrated refrigeration system that can effectively improve the refrigeration effect of a refrigerator.

[0004] The integrated refrigeration system provided in this application includes: an air conditioning refrigeration loop including a chilled water heat exchanger; a refrigerator refrigeration loop including a refrigerator condenser; a chilled water tank located on the outdoor side, wherein the chilled water heat exchanger is located inside the chilled water tank, and the chilled water tank is connected to the refrigerator condenser via chilled water pipes to form a chilled water circulation loop; and a heat dissipation component located on or at least partially located inside the chilled water tank.

[0005] In some embodiments, the heat dissipation component includes a thermosiphon and a cooling fan, the thermosiphon extending from inside the chilled water tank to outside the chilled water tank, and the cooling fan being configured to force outdoor air to flow through an area on the thermosiphon located outside the chilled water tank.

[0006] In some embodiments, the integrated refrigeration system includes an outdoor unit, an indoor air conditioning unit, and a refrigerator module. The chilled water heat exchanger, the chilled water tank, and the heat dissipation components are respectively disposed in the outdoor unit, and the refrigerator refrigeration cycle loop is disposed in the refrigerator module.

[0007] In some embodiments, the air conditioning refrigeration cycle circuit includes an air conditioning compressor, a four-way valve, an outdoor heat exchanger, a first air conditioning flow regulating device, an indoor heat exchanger, and a second air conditioning flow regulating device. The first air conditioning flow regulating device and the indoor heat exchanger are connected in series to form a first heat exchange branch, and the second air conditioning flow regulating device and the chilled water heat exchanger are connected in series to form a second heat exchange branch. The first heat exchange branch and the second heat exchange branch are connected in parallel between the outdoor heat exchanger and the four-way valve.

[0008] In some embodiments, the outdoor unit is equipped with an outdoor fan, and the outdoor fan and the outdoor heat exchanger are correspondingly arranged; the indoor unit of the air conditioner is equipped with an indoor fan, and the indoor fan and the indoor heat exchanger are correspondingly arranged.

[0009] In some embodiments, the refrigerator refrigeration cycle includes at least one refrigerator evaporator, the refrigerator condenser is provided with a chilled water channel and at least one refrigerant channel, the chilled water tank is connected to the chilled water channel through the chilled water pipe to form a chilled water circulation loop, and the number of refrigerator evaporators and the refrigerant channels are equal and connected in a one-to-one correspondence.

[0010] In some embodiments, the refrigerator refrigeration cycle circuit includes two refrigerator evaporators, namely a refrigeration evaporator and a freezing evaporator; the refrigerator condenser is provided with two refrigerant channels, one of which is connected to the refrigeration evaporator and the other of which is connected to the freezing evaporator.

[0011] In some embodiments, the refrigerator refrigeration cycle circuit includes a first refrigerator compressor, a second refrigerator compressor, a first refrigerator throttling device, and a second refrigerator throttling device. The first refrigerator compressor, the refrigeration evaporator, the first refrigerator throttling device, and one of the refrigerant channels are connected in sequence. The second refrigerator compressor, the freezing evaporator, the second refrigerator throttling device, and the other refrigerant channel are connected in sequence.

[0012] In some embodiments, the integrated refrigeration system includes a chilled water pump disposed on the chilled water pipe for driving chilled water to circulate between the chilled water tank and the refrigerator condenser; and / or, the chilled water tank is provided with an insulation layer.

[0013] In some embodiments, when the air conditioning refrigeration cycle is in a refrigeration cycle, the chilled water heat exchanger is configured to cool the chilled water in the chilled water tank; when the air conditioning refrigeration cycle is in a heating cycle, the chilled water heat exchanger is configured to heat the chilled water in the chilled water tank.

[0014] This embodiment of the application, by setting up an air conditioning refrigeration cycle loop, a refrigerator refrigeration cycle loop, and heat dissipation components, can utilize the chilled water circulation between the chilled water tank and the refrigerator condenser to transfer the heat generated by the refrigerator refrigeration cycle loop to the chilled water tank. In most cases, the heat dissipation components are used to dissipate the heat in the chilled water tank to the outdoor environment, and in special cases, a chilled water heat exchanger is further used to dissipate the heat in the chilled water tank to the outdoor environment. This avoids fluctuations and increases in indoor ambient temperature due to the heat generated by the refrigerator, thereby effectively improving the refrigerator's cooling effect and eliminating the constraints imposed on increasing the refrigerator's capacity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a connection structure diagram of an integrated refrigeration system provided in some embodiments of this application;

[0017] Figure 2 This is a flow path diagram of an integrated refrigeration system provided in some embodiments of this application when cooling a chilled water tank;

[0018] Figure 3 This is a flow path diagram of an integrated refrigeration system provided in some embodiments of this application when heating a chilled water tank.

[0019] Explanation of key component symbols:

[0020] 1-Integrated refrigeration system, 10-Outdoor unit, 11-Air conditioning compressor, 12-Four-way valve, 13-Outdoor heat exchanger, 14-First air conditioning flow regulating device, 15-Second air conditioning flow regulating device, 16-Chiller water heat exchanger, 17-Outdoor fan, 20-Air conditioning indoor unit, 21-Indoor heat exchanger, 22-Indoor fan, 30-Refrigerator module, 31-Refrigerator condenser, 32-Refrigerator evaporator, 321-Refrigerator evaporator, 322-Refrigerator evaporator, 33-First refrigerator compressor, 34-Second refrigerator compressor, 35-First refrigerator throttling device, 36-Second refrigerator throttling device, 40-Chiller water tank, 50-Heat dissipation components, 51-Thermosiphon pipe, 52-Heat dissipation fan, 60-Chiller water pump, 70-Chiller water pipe. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0024] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0025] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0026] like Figure 1 As shown in the figure, this application embodiment provides an integrated refrigeration system 1, which includes an air conditioning refrigeration cycle loop, a refrigerator refrigeration cycle loop, a chilled water tank 40 and a heat dissipation component 50, which can effectively improve the refrigeration effect of the refrigerator.

[0027] The air conditioning refrigeration cycle loop includes a chilled water heat exchanger 16, in which the refrigerant on the air conditioning side can circulate to meet indoor cooling / heating needs. During this process, the refrigerant can selectively flow through the chilled water heat exchanger 16 to exchange heat at the chilled water heat exchanger 16.

[0028] The refrigerator's refrigeration cycle includes a refrigerator condenser 31. The refrigerant on the refrigerator side can circulate within this cycle to meet the refrigerator's freezing / refrigeration needs. During this process, the refrigerant releases heat as it condenses while flowing through the refrigerator condenser 31, thereby lowering its temperature.

[0029] The chilled water tank 40 is located on the outdoor side to avoid fluctuations in the indoor ambient temperature. The chilled water heat exchanger 16 is installed inside the chilled water tank 40, which can cool the chilled water in the tank 40 as needed to lower its temperature. The chilled water tank 40 is connected to the refrigerator condenser 31 via chilled water pipes 70 to form a chilled water circulation loop. The chilled water can circulate through the chilled water tank 40 and the refrigerator condenser 31 in this loop. As the chilled water flows through the refrigerator condenser 31, it absorbs heat and rises in temperature, absorbing and transferring the heat generated by the condensation of the refrigerant on the refrigerator side at the condenser 31, thereby lowering the refrigerant temperature at the condenser 31. The heated chilled water can then flow along the chilled water circulation loop to the chilled water heat exchanger 16 for cooling and heat release, and after cooling and heat release, it flows back to the refrigerator condenser 31 to absorb heat and lower the refrigerant temperature at the condenser 31.

[0030] The heat dissipation component 50 is disposed on the chilled water tank 40 or at least partially disposed inside the chilled water tank 40, and is used to dissipate heat and cool the chilled water in the chilled water tank 40 to reduce the temperature of the chilled water.

[0031] When the outdoor ambient temperature is within a preset temperature range, such as 0–25°C, the cooling effect of the heat dissipation component 50 can maintain the chilled water temperature of the chilled water tank 40 within a preset cooling water temperature range, such as 15°C–25°C. The chilled water in the chilled water tank 40 can meet the cooling requirements of the refrigerator condenser 31. At this time, there is no need to control the chilled water heat exchanger 16 to cool the chilled water in the chilled water tank 40.

[0032] When the outdoor ambient temperature exceeds the upper limit of the preset temperature range, for example, exceeding 25°C, the cooling effect of the heat dissipation component 50 is insufficient to maintain the chilled water temperature of the chilled water tank 40 within the preset cooling water temperature range, causing the chilled water temperature of the chilled water tank 40 to exceed the upper limit of the preset cooling water temperature range, for example, exceeding 25°C. Figure 2As shown, at this time, it is necessary to control the chilled water heat exchanger 16 to cool the chilled water in the chilled water tank 40 so that the chilled water temperature in the chilled water tank 40 is maintained within the preset cooling water temperature range, ensuring that the chilled water in the chilled water tank 40 can meet the cooling and temperature reduction requirements of the refrigerator condenser 31.

[0033] Compared with related technologies, the integrated refrigeration system 1 provided in this application embodiment, by setting up an air conditioning refrigeration cycle loop, a refrigerator refrigeration cycle loop, and a heat dissipation component 50, can transfer the heat generated by the refrigerator refrigeration cycle loop to the refrigerator refrigeration cycle loop by utilizing the chilled water circulation between the chilled water tank 40 and the refrigerator condenser 31. In most cases, the heat dissipation component 50 is used to dissipate the heat in the chilled water tank 40 to the outdoor environment, and in special cases, the chilled water heat exchanger 16 is used to further dissipate the heat in the chilled water tank 40 to the outdoor environment, thereby avoiding fluctuations and increases in indoor ambient temperature due to the heat generated by the refrigerator, thus effectively improving the refrigeration effect of the refrigerator and eliminating the constraints on increasing the refrigerator capacity.

[0034] When the outdoor ambient temperature is below the lower limit of the preset temperature range, for example, below 0°C, the chilled water temperature in the chilled water tank 40 may be below the lower limit of the preset cooling water temperature range, failing to maintain optimal fluidity and heat exchange efficiency. Figure 3 As shown, the chilled water heat exchanger 16 can be controlled to heat the chilled water in the chilled water tank 40 so that the chilled water temperature in the chilled water tank 40 is maintained within the preset cooling water temperature range, so that the cooling water has better fluidity and heat exchange efficiency, ensuring that the chilled water in the chilled water tank 40 can meet the cooling and temperature reduction requirements of the refrigerator condenser 31.

[0035] like Figures 1 to 3 As shown, in some embodiments, when the air conditioning refrigeration cycle is in the refrigeration cycle, such as during a hot summer, the chilled water heat exchanger 16 can be configured to cool the chilled water in the chilled water tank 40 to maintain the chilled water temperature in the chilled water tank 40 within a preset cooling water temperature range. When the air conditioning refrigeration cycle is in the heating cycle, such as during a cold winter, the chilled water heat exchanger 16 can be configured to heat the chilled water in the chilled water tank 40 to maintain the chilled water temperature in the chilled water tank 40 within a preset cooling water temperature range, thereby improving the flow rate and heat exchange efficiency of the cooling water.

[0036] The structure of the heat dissipation component 50 can be determined according to actual needs, and can adopt different structures such as heat sinks and heat dissipation plates. This application embodiment does not limit this. In some embodiments, the heat dissipation component 50 may include a thermosiphon 51 and a cooling fan 52. The thermosiphon 51 extends from inside the chilled water tank 40 to outside the chilled water tank 40, and the cooling fan 52 is configured to force outdoor air to flow through the area of ​​the thermosiphon 51 located outside the chilled water tank 40. The thermosiphon 51 is filled with a phase change working fluid, which can realize heat absorption and release by evaporation and condensation, and heat transfer by automatic circulation of the phase change working fluid. In this way, the phase change working fluid can absorb heat from the chilled water and evaporate in the area of ​​the thermosiphon 51 located in the chilled water tank 40, and then circulate to the area of ​​the thermosiphon 51 located outside the chilled water tank 40 for condensation and heat release. The cooling fan 52 forces outdoor air convection to absorb the heat released by the thermosiphon 51, thereby achieving the purpose of cooling the chilled water in the chilled water tank 40.

[0037] In some embodiments, the integrated refrigeration system 1 may include an outdoor unit 10, an indoor air conditioning unit 20, and a refrigerator module 30. The chilled water heat exchanger 16, the chilled water tank 40, and the heat dissipation components 50 are respectively disposed in the outdoor unit 10, and the refrigerator refrigeration cycle loop is disposed in the refrigerator module 30, thereby achieving a modular design.

[0038] In some examples, the air conditioning refrigeration cycle loop may include an air conditioning compressor 11, a four-way valve 12, an outdoor heat exchanger 13, a first air conditioning regulating device 14, an indoor heat exchanger 21, and a second air conditioning regulating device 15. The first air conditioning regulating device 14 and the indoor heat exchanger 21 are connected in series to form a first heat exchange branch to regulate the indoor ambient temperature for cooling / heating purposes. The second air conditioning regulating device 15 and the chilled water heat exchanger 16 are connected in series to form a second heat exchange branch to cool or heat the chilled water in the chilled water tank 40. The first and second heat exchange branches are connected in parallel between the outdoor heat exchanger 13 and the four-way valve 12. The types of the first air conditioning regulating device 14 and the second air conditioning regulating device 15 can be determined according to actual needs, and can be, for example, electronic expansion valves, capillary tubes, etc., which are not limited in this application embodiment.

[0039] For example, the second air conditioning flow control device 15 can be completely shut off, thereby changing the on / off state of the second heat exchange branch by adjusting the opening degree of the second air conditioning flow control device 15, so as to open the second heat exchange branch when it is necessary to cool or heat the chilled water in the chilled water tank 40, and disconnect the second heat exchange branch when it is not necessary to cool or heat the chilled water in the chilled water tank 40.

[0040] For example, the outdoor unit 10 may be equipped with an outdoor fan 17, which is correspondingly arranged with an outdoor heat exchanger 13 to force outdoor air convection and exchange heat with the outdoor heat exchanger 13. For example, the indoor unit 20 may be equipped with an indoor fan 22, which is correspondingly arranged with an indoor heat exchanger 21 to draw indoor air in for heat exchange with the indoor heat exchanger 21 and to exhaust the air after heat exchange with the indoor heat exchanger 21 into the indoor environment.

[0041] In some embodiments, the refrigerator refrigeration cycle loop may include at least one refrigerator evaporator 32, and the refrigerator condenser 31 may be provided with a chilled water flow channel and at least one refrigerant flow channel. The chilled water tank 40 is connected to the chilled water flow channel via chilled water pipes 70 to form a chilled water circulation loop, and the number of refrigerator evaporators 32 and refrigerant flow channels are equal and connected in a one-to-one correspondence.

[0042] In some examples, the refrigerator's refrigeration cycle loop may include two refrigerator evaporators 32, namely a refrigerator evaporator 321 and a freezer evaporator 322. The refrigerator evaporator 321 may be located in the refrigerator compartment to achieve a refrigeration effect, and the freezer evaporator 322 may be located in the freezer compartment to achieve a freezing effect. The refrigerator condenser 31 may have two refrigerant channels, one of which is connected to the refrigerator evaporator 321, and the other is connected to the freezer evaporator 322, to avoid interference or misalignment.

[0043] For example, the refrigerator refrigeration cycle circuit may include a first refrigerator compressor 33, a second refrigerator compressor 34, a first refrigerator throttling device 35, and a second refrigerator throttling device 36. The first refrigerator compressor 33, the refrigeration evaporator 321, the first refrigerator throttling device 35, and one of the refrigerant channels are connected in sequence, and the second refrigerator compressor 34, the freezing evaporator 322, the second refrigerator throttling device 36, and the other refrigerant channel are connected in sequence. In this way, the refrigerator refrigeration cycle circuit can have independent refrigeration and freezing cycle circuits, which can independently realize refrigeration and freezing functions, ensuring optimal refrigeration and freezing performance.

[0044] In some embodiments, the integrated refrigeration system 1 may include a chilled water pump 60. The chilled water pump 60 is disposed on the chilled water pipe 70 and is used to drive chilled water to circulate between the chilled water tank 40 and the refrigerator condenser 31.

[0045] In some embodiments, the chilled water tank 40 may be provided with an insulation layer. The insulation layer is used to keep the chilled water in the chilled water tank 40 warm, to prevent heat loss from the chilled water tank 40, and to improve the energy utilization rate of the chilled water. The material of the insulation layer can be determined according to actual needs, and can be, for example, a foamed material, etc., but this application embodiment does not limit this.

[0046] The integrated refrigeration system provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An integrated refrigeration system, characterized by, include: Air conditioning refrigeration cycle loop, including chilled water heat exchanger; The refrigerator's refrigeration cycle loop includes the refrigerator condenser; A chilled water tank is located on the outdoor side, and the chilled water heat exchanger is installed inside the chilled water tank. The chilled water tank is connected to the refrigerator condenser through chilled water pipes to form a chilled water circulation loop. The heat dissipation component is disposed on the chilled water tank or at least partially disposed inside the chilled water tank.

2. The integrated refrigeration system of claim 1, wherein, The heat dissipation component includes a thermosiphon and a cooling fan. The thermosiphon extends from inside the chilled water tank to outside the chilled water tank, and the cooling fan is configured to force outdoor air to flow through the area of ​​the thermosiphon located outside the chilled water tank.

3. The integrated refrigeration system of claim 1, wherein, The integrated refrigeration system includes an outdoor unit, an indoor air conditioning unit, and a refrigerator module. The chilled water heat exchanger, the chilled water tank, and the heat dissipation components are respectively installed inside the outdoor unit, and the refrigerator refrigeration cycle loop is installed inside the refrigerator module.

4. The integrated refrigeration system of claim 3, wherein, The air conditioning refrigeration cycle circuit includes an air conditioning compressor, a four-way valve, an outdoor heat exchanger, a first air conditioning flow regulating device, an indoor heat exchanger, and a second air conditioning flow regulating device. The first air conditioning flow regulating device and the indoor heat exchanger are connected in series to form a first heat exchange branch, and the second air conditioning flow regulating device and the chilled water heat exchanger are connected in series to form a second heat exchange branch. The first heat exchange branch and the second heat exchange branch are connected in parallel between the outdoor heat exchanger and the four-way valve.

5. The integrated refrigeration system of claim 4, wherein, The outdoor unit is equipped with an outdoor fan, and the outdoor fan and the outdoor heat exchanger are correspondingly arranged; the indoor unit of the air conditioner is equipped with an indoor fan, and the indoor fan and the indoor heat exchanger are correspondingly arranged.

6. The integrated refrigeration system of claim 1, wherein, The refrigerator refrigeration cycle includes at least one refrigerator evaporator, the refrigerator condenser is provided with a chilled water flow channel and at least one refrigerant flow channel, the chilled water tank is connected to the chilled water flow channel through the chilled water pipe to form a chilled water circulation loop, and the number of refrigerator evaporators and the refrigerant flow channels are equal and connected in a one-to-one correspondence.

7. The integrated refrigeration system of claim 6, wherein, The refrigerator refrigeration cycle circuit includes two refrigerator evaporators, namely a refrigeration evaporator and a freezing evaporator; the refrigerator condenser is provided with two refrigerant channels, one of which is connected to the refrigeration evaporator and the other is connected to the freezing evaporator.

8. The integrated refrigeration system of claim 7, wherein, The refrigerator refrigeration cycle circuit includes a first refrigerator compressor, a second refrigerator compressor, a first refrigerator throttling device, and a second refrigerator throttling device. The first refrigerator compressor, the refrigeration evaporator, the first refrigerator throttling device, and one of the refrigerant channels are connected in sequence. The second refrigerator compressor, the freezing evaporator, the second refrigerator throttling device, and the other refrigerant channel are connected in sequence.

9. The integrated refrigeration system of claim 1, wherein, The integrated refrigeration system includes a chilled water pump, which is installed on the chilled water pipe to drive chilled water to circulate between the chilled water tank and the refrigerator condenser; and / or, the chilled water tank is provided with an insulation layer.

10. The integrated refrigeration system of claim 1, wherein, When the air conditioning refrigeration cycle is in the refrigeration cycle, the chilled water heat exchanger is configured to cool the chilled water in the chilled water tank; when the air conditioning refrigeration cycle is in the heating cycle, the chilled water heat exchanger is configured to heat the chilled water in the chilled water tank.

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