CN214501776U - Heat recovery defrosting and refrigerating device - Google Patents
Heat recovery defrosting and refrigerating device Download PDFInfo
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- CN214501776U CN214501776U CN202120455500.XU CN202120455500U CN214501776U CN 214501776 U CN214501776 U CN 214501776U CN 202120455500 U CN202120455500 U CN 202120455500U CN 214501776 U CN214501776 U CN 214501776U
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Abstract
The embodiment of the application provides a heat recovery defrosting and refrigerating device, and relates to the technical field of refrigerating equipment. The heat recovery defrosting and refrigerating device comprises an evaporation and condensation component, a compressor, an air cooler and a heat recoverer; the evaporation and condensation assembly comprises a water distribution mechanism, a plate-tube heat exchanger, a water tank and a water pump, the water distribution mechanism, the plate-tube heat exchanger and the water tank are sequentially stacked from top to bottom, the outlet of the water pump is connected with the water distribution mechanism, and the inlet of the water pump is connected with the water tank; the compressor is respectively connected with the air cooler and the heat recoverer; the air cooler is connected with the plate-tube heat exchanger; the heat recovery device is provided with a first loop and a second loop, wherein the inlet of the first loop is connected with the outlet of the compressor, and the outlet of the first loop is connected with the inlet of the plate-tube heat exchanger; the inlet of the second loop is connected with the outlet of the water pump, and the outlet of the second loop is connected with the air cooler. The heat recovery defrosting and refrigerating device can realize the high energy efficiency of refrigeration and the technical effect of multi-stage defrosting.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a heat recovery defrosting refrigeration device.
Background
At present, the conventional refrigeration house unit usually adopts air cooling as a heat source cooling mode; the air cooling unit utilizes the dry bulb temperature in the air to carry out condensation heat dissipation, and the condensation temperature is great, and the consumption is big. In addition, in cold environments such as winter, the refrigeration house unit also has the defrosting requirement, and the common defrosting methods of the air cooler include hot water pouring, hot gas bypass and manual defrosting. All three methods have certain disadvantages.
In the prior art, the air-cooled heat exchanger has high condensation temperature, poor heat dissipation and large power consumption. If the defrosting of the air cooler is carried out by hot water pouring, devices such as a water pump and a water tank need to be additionally arranged, and the devices cannot be fully utilized in the conventional working process, so that the investment cost performance is poor. The hot gas bypass is simple, but the influence of internal defrosting on the temperature of the storage is large, the control difficulty of a refrigerating system is increased, and the phenomenon of large storage temperature fluctuation is easy to occur. The manual defrosting is too high in cost and has large influence on the storage temperature.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a heat recovery defrosting refrigeration device, which can achieve the technical effects of high energy efficiency of refrigeration and multi-stage defrosting.
The embodiment of the application provides a heat recovery defrosting and refrigerating device which comprises an evaporation and condensation component, a compressor, an air cooler and a heat recoverer;
the evaporation and condensation assembly comprises a water distribution mechanism, a plate-tube heat exchanger, a water tank and a water pump, the water distribution mechanism, the plate-tube heat exchanger and the water tank are sequentially stacked from top to bottom, an outlet of the water pump is connected with the water distribution mechanism, and an inlet of the water pump is connected with the water tank;
the compressor is respectively connected with the air cooler and the heat recoverer;
the air cooler is connected with the plate-tube heat exchanger;
the heat recovery device is provided with a first loop and a second loop, wherein the inlet of the first loop is connected with the outlet of the compressor, and the outlet of the first loop is connected with the inlet of the plate-tube heat exchanger; and the inlet of the second loop is connected with the outlet of the water pump, and the outlet of the second loop is connected with the air cooler.
In the implementation process, the heat recovery defrosting refrigeration device utilizes the evaporation condensation component and water system valves such as a water pump and the like carried by the evaporation condensation component to realize a primary condensation heat recovery function, the compressor, the air cooler and the heat recoverer form a refrigeration system, and the secondary heat recovery of high-temperature water is realized by matching with the heat recoverer in the refrigeration system, so that the technical effect of multi-stage heat recovery defrosting is achieved; therefore, the heat recovery defrosting and refrigerating device combines the high efficiency of evaporative cooling and system valves such as a shared evaporative condensation component and a water pump, realizes the high energy efficiency of refrigeration, fully absorbs the condensation heat, and further realizes the multi-stage defrosting effect.
Further, the evaporation and condensation assembly further comprises a first fan, and the first fan is arranged above the water distribution mechanism.
In the implementation process, the evaporation and condensation assembly is matched with the first fan, and the spray water of the water distribution mechanism can completely and uniformly cover the surface of the plate-tube heat exchanger by means of the wind power of the first fan when the evaporation and condensation assembly works, so that the heat exchange effect of the evaporation and condensation assembly can be greatly improved by means of the wind power of the water.
Further, the air-cooler includes from last to the heat exchanger, pouring mechanism and the water recovery mechanism of range upon range of setting gradually down, the heat exchanger respectively with the compressor the board pipe heat exchanger is connected, pouring mechanism with the export of second return circuit, the water recovery mechanism with the water tank is connected.
In the implementation process, a heat exchanger in the air cooler participates in the refrigerant circulation of a refrigeration system consisting of a compressor, a plate-tube heat exchanger and a heat recoverer; and a pouring mechanism and a water recovery mechanism in the air cooler participate in water circulation of the evaporation and condensation assembly.
Further, the air cooler still includes the second fan, the second fan set up in the air inlet end of heat exchanger.
In the implementation process, the air cooler is provided with the second fan, and air is blown to the heat exchanger through the second fan, so that the heat exchange efficiency of the air cooler is improved.
Further, the device further comprises a first stop valve, and the first stop valve is arranged on a communication pipeline between the outlet of the second loop and the air cooler.
In the implementation process, the communicating pipeline between the outlet of the second loop of the heat recoverer and the air cooler is provided with the first stop valve, so that whether the air cooler participates in the water circulation process of the evaporation and condensation assembly or not can be adjusted, the working modes of the heat recovery defrosting and refrigerating device are adjusted, different working modes are operated under different conditions, and the energy conservation maximization can be realized.
Further, the device also comprises a second stop valve which is arranged in a communication pipeline between the inlet of the second loop and the outlet of the water pump.
In the implementation process, the communication pipeline between the inlet of the second loop of the heat recoverer and the outlet of the water pump is provided with the second stop valve, and whether the water circulation process of the evaporative condensation assembly passes through the heat recoverer or not is judged, so that the working mode of the heat recovery defrosting and refrigerating device is adjusted, different working modes are operated under different conditions, and the energy conservation maximization is realized.
Further, the plate-tube heat exchanger is a coiled tube heat exchanger.
Further, the plate-tube heat exchanger is a plate-fin heat exchanger.
Further, the device also comprises a gas-liquid separator, wherein the gas-liquid separator is arranged in a communication pipeline between the compressor and the air cooler.
In the implementation process, the gas-liquid separator is arranged at the inlet and outlet of the compressor and used for gas-liquid separation, so that the normal operation of the compressor is realized.
Further, the device still includes the reservoir, the reservoir set up in the air-cooler with the intercommunication pipeline between the plate tube heat exchanger.
In the implementation process, after the high-temperature and high-pressure refrigerant gas is cooled by the heat recoverer, part of the condensed refrigerant enters the plate-tube heat exchanger in the evaporation and condensation assembly to be condensed into high-temperature and high-pressure refrigerant liquid, and then the redundant refrigerant liquid can be stored in the liquid storage device, so that the normal circulation of the refrigerant is realized.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the above-described techniques.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a heat recovery defrosting and refrigerating apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another heat recovery defrosting and refrigerating apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or a point connection; either directly or indirectly through intervening media, or may be an internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The embodiment of the application provides a heat recovery defrosting and refrigerating device which can be applied to the refrigerating process of a refrigeration house unit; the heat recovery defrosting refrigeration device utilizes the evaporation condensation component and water system valves such as a water pump and the like carried by the evaporation condensation component to realize a primary condensation heat recovery function, the compressor, the air cooler and the heat recoverer form a refrigeration system, and the secondary heat recovery of high-temperature water is realized by matching with the heat recoverer in the refrigeration system, so that the technical effect of multi-stage heat recovery defrosting is achieved; therefore, the heat recovery defrosting and refrigerating device combines the high efficiency of evaporative cooling and system valves such as a shared evaporative condensation component and a water pump, realizes the high energy efficiency of refrigeration, fully absorbs the condensation heat, and further realizes the multi-stage defrosting effect.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a heat recovery defrosting refrigeration device according to an embodiment of the present disclosure, where the heat recovery defrosting refrigeration device includes an evaporation condensing assembly 100, a compressor 200, an air cooler 300, and a heat recoverer 400.
In the heat recovery defrosting and cooling device shown in fig. 1, the solid connecting line indicates a refrigerant circulation circuit, and the dotted connecting line indicates a water circulation circuit.
Illustratively, the evaporative condensation assembly 100 includes a water distribution mechanism 110, a plate-tube heat exchanger 120, a water tank 130 and a water pump 140, wherein the water distribution mechanism 110, the plate-tube heat exchanger 120 and the water tank 130 are sequentially stacked from top to bottom, an outlet of the water pump 140 is connected to the water distribution mechanism 110, and an inlet of the water pump 140 is connected to the water tank 130.
Illustratively, the evaporative condenser 100, i.e. the evaporative condenser, is a main heat exchange device in the refrigeration system, and the evaporative condenser functions on the following principle: the superheated high-pressure refrigerant gas discharged from the compressor 200 in the refrigeration system passes through the plate-tube heat exchanger 120, so that the high-temperature gaseous refrigerant exchanges heat with the spray water (water distribution mechanism 110) and air outside the plate-tube heat exchanger 120. That is, the gaseous refrigerant enters the plate-tube heat exchanger 120 from the upper opening and is gradually condensed into liquid refrigerant from top to bottom. The super strong wind force of the matched induced draft fan enables the spray water to completely and uniformly cover the surface of the plate-tube heat exchanger 120, and the heat exchange effect is greatly improved by the aid of the wind force of the water.
In some embodiments, the shower water with increased temperature is partially changed into gas state, the latent heat of vaporization of the water is used to take away a large amount of heat from wind, the water drops in the hot gas are intercepted by the high-efficiency dehydrator, and the water with absorbed heat is scattered into the heat exchange layer of the PVC shower sheet, cooled by the flowing air, and the temperature is reduced, enters the water tank 130, and then is continuously circulated by the water pump 140. The moisture evaporated into the air can be automatically replenished by the water level regulator.
Illustratively, the compressor 200 is connected to the air cooler 300 and the heat recovery unit 400, respectively.
Illustratively, air cooler 300 is coupled to plate-and-tube heat exchanger 120.
Illustratively, the compressor 200, the air-cooler 300, the plate-and-tube heat exchanger 120, and the heat recoverer 400 constitute a refrigerant circulation circuit.
In some embodiments, the heat recovery defrosting cooling device comprises a plurality of air coolers 300, and the plurality of air coolers 300 are connected in parallel.
Illustratively, the recuperator 400 is provided with a first circuit and a second circuit, wherein an inlet of the first circuit is connected to an outlet of the compressor 200, and an outlet of the first circuit is connected to an inlet of the plate-and-tube heat exchanger 120; the inlet of the second loop is connected with the outlet of the water pump 140, and the outlet of the second loop is connected with the air cooler 300.
For example, the first circuit of the recuperator 400 is fed with refrigerant, i.e., the refrigerant circulates in the first circuit of the recuperator 400; the second circuit of the heat recovery unit 400 is circulated with water, i.e., circulating water, in the second circuit of the heat recovery unit 400.
For example, the heat exchange between the first and second circuits of the recuperator 400 may be concurrent or countercurrent.
In some embodiments, the heat recovery defrosting refrigeration device utilizes water system valves such as the water pump 140 and the like of the evaporative condensation assembly 100 and the evaporative condensation assembly 100 to realize a first-stage condensation heat recovery function, the compressor 200, the air cooler 300 and the heat recoverer 400 form a refrigeration system, and the heat recoverer 400 in the refrigeration system is matched to realize second-stage heat recovery of high-temperature water, so that the technical effect of multi-stage heat recovery defrosting is achieved; therefore, the heat recovery defrosting and refrigerating device combines the high efficiency of evaporative cooling and system valves such as a shared evaporative condensation component and a water pump, realizes the high energy efficiency of refrigeration, fully absorbs the condensation heat, and further realizes the multi-stage defrosting effect.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another heat recovery defrosting refrigeration device according to an embodiment of the present application.
Illustratively, the evaporative condensation assembly 100 further includes a first fan 150, and the first fan 150 is disposed above the water distribution mechanism 110.
For example, the evaporation and condensation assembly 100 is matched with the first fan 150, when the evaporation and condensation assembly 100 works, the wind power of the first fan 150 can make the spray water of the water distribution mechanism 110 completely and uniformly cover the surface of the plate-tube heat exchanger 120, and the heat exchange effect of the evaporation and condensation assembly 100 can be greatly improved by the aid of the wind force of the water.
Illustratively, air-cooler 300 includes from last to the heat exchanger of stacking gradually the setting down, pouring mechanism and water recovery mechanism, and the heat exchanger is connected with compressor, plate and tube heat exchanger respectively, and pouring mechanism and the export of second return circuit, water recovery mechanism are connected with the water tank.
Exemplarily, the heat exchanger in the air cooler 300 participates in a refrigerant cycle of a refrigeration system composed of the compressor 200, the plate-and-tube heat exchanger 120, and the heat recoverer 400; the casting mechanism and the water recovery mechanism in the air cooler 300 participate in the water circulation of the evaporative condensation assembly 100.
Illustratively, the air cooler 300 further includes a second fan disposed at the air inlet end of the heat exchanger.
Exemplarily, the air cooler 300 is provided with a second fan, and air is blown to the heat exchanger through the second fan, so that the heat exchange efficiency of the air cooler 300 is improved.
Illustratively, the heat recovery defrosting and refrigerating device further comprises a first stop valve 510, and the first stop valve 510 is arranged in a communication pipeline between the outlet of the second circuit and the air cooler 300.
For example, a first stop valve 510 is arranged in a communication pipeline between the outlet of the second loop of the heat recovery unit 400 and the air cooler 300, so that whether the air cooler 300 participates in the water circulation process of the evaporative condensation assembly 100 or not can be adjusted, the working mode of the heat recovery defrosting and refrigerating device can be adjusted, different working modes can be operated under different conditions, and maximum energy conservation can be achieved.
Illustratively, the heat recovery defrosting and refrigerating device further comprises a second stop valve 520, and the second stop valve 520 is arranged in a communication pipeline between the inlet of the second loop and the outlet of the water pump 140.
For example, a second stop valve 520 is disposed in a communication pipeline between an inlet of the second loop of the heat recovery unit 400 and an outlet of the water pump 140, so that whether the water circulation process of the evaporative condensation assembly 100 passes through the heat recovery unit 400 can be determined, the operation mode of the heat recovery defrosting refrigeration device can be adjusted, different operation modes can be operated under different conditions, and maximum energy saving can be achieved.
Illustratively, the plate-tube heat exchanger 120 is a serpentine tube heat exchanger.
Illustratively, the plate-and-tube heat exchanger 120 is a plate-and-fin heat exchanger.
Illustratively, the plate-tube heat exchanger 120 is also called a plate heat exchanger, which is a high efficiency heat exchanger formed by stacking a series of metal sheets having a certain corrugated shape. Thin rectangular channels are formed between the various plates through which heat is exchanged. The plate heat exchanger is an ideal device for heat exchange of liquid-liquid and liquid-vapor. The heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, wide application, long service life and the like. Under the condition of the same pressure loss, the heat transfer coefficient of the heat exchanger is 3-5 times higher than that of the tubular heat exchanger, the occupied area of the heat exchanger is one third of that of the tubular heat exchanger, and the heat recovery rate can reach more than 90 percent.
Illustratively, the heat recovery defrosting and refrigerating device further comprises a gas-liquid separator 600, and the gas-liquid separator 600 is arranged in a communication pipeline between the compressor 200 and the air cooler 300.
Illustratively, the gas-liquid separator 600 is installed at an inlet and an outlet of the compressor 200 for gas-liquid separation, thereby achieving a normal operation of the compressor 200.
Illustratively, the heat recovery defrosting and refrigerating device further comprises a reservoir 700, and the reservoir 700 is arranged in a communication pipeline between the air cooler 300 and the plate-tube heat exchanger 120.
For example, after the refrigerant gas with high temperature and high pressure is cooled by the heat recovery device 400, the partially condensed refrigerant enters the plate-tube heat exchanger 120 in the evaporation condensation assembly 100 to be condensed into refrigerant liquid with high temperature and high pressure, and then the redundant refrigerant liquid can be stored in the liquid storage device 700, so that the normal circulation of the refrigerant is realized.
With reference to fig. 1 and fig. 2, an example of the working principle of the heat recovery defrosting and refrigerating apparatus provided by the embodiment of the present application is as follows:
when the refrigeration system works, the compressor 200 sucks low-temperature and low-pressure refrigerant gas and compresses the refrigerant gas into high-temperature and high-pressure refrigerant gas, the high-temperature and high-pressure refrigerant gas is cooled by the heat recoverer 400, part of the refrigerant gas is condensed and then enters the plate-tube heat exchanger 120 in the evaporation and condensation assembly 100 to be condensed into high-temperature and high-pressure refrigerant liquid, and then the redundant refrigerant liquid is stored in the liquid storage 700. After passing through the liquid accumulator 700, there are 1 or more air coolers 300, and after throttling and pressure reduction by the throttling mechanism of the air cooler 300, the air coolers 300 are evaporated and absorb heat in the heat exchanger to become low-temperature and low-pressure refrigerant gas, and then the refrigerant gas returns to the gas-liquid separator 600 to be subjected to gas-liquid separation, and the refrigerant gas returns to the suction inlet of the compressor 200 to realize the reciprocating circulation of the refrigerant.
The evaporative condensation assembly 100 sends the water cooled by the water tank 130 to the water distribution mechanism 110 at the top of the plate heat exchanger 120 through the water pump 140, and then the water distribution mechanism 110 sprays the water to the plate heat exchanger 120, so that the heat dissipation capacity of the plate-tube heat exchanger 120 is absorbed by using the latent heat of evaporation of the water. The first fan 150 brings the evaporated moisture to the atmosphere, thereby accelerating the evaporation efficiency.
When the air cooler 300 is frosted seriously and needs defrosting, the heat recovery defrosting refrigeration device starts a hot water defrosting mode. After the cooling water in the water tank 130 at the bottom of the evaporative condensation assembly 100 is heated by the plate-tube heat exchanger 120, the temperature rises, so that the first-stage condensation heat recovery is completed; the hot water exchanges heat with the exhaust gas of the compressor 200 through the heat recoverer 400, thereby completing the recovery of the second-stage high-temperature condensation heat; at this time, the first stop valve 510 entering the air cooler 300 is opened, the high-temperature water is directly poured onto the frosting heat exchanger of the air cooler 300, the frost on the frost is quickly melted, and the melted low-temperature water returns to the water pan and flows back to the inlet of the water pump 140, so that the water is circulated back and forth.
Through the mode, the heat recovery defrosting refrigeration device realizes the primary condensation heat recovery function by utilizing the evaporation condensation component 100 and water system valves such as the water pump 140 and the like arranged on the evaporation condensation component 100, the compressor 200, the air cooler 300 and the heat recoverer 400 form a refrigeration system, and the secondary heat recovery of high-temperature water is realized by matching with the heat recoverer 400 in the refrigeration system, so that the technical effect of multi-stage heat recovery defrosting is achieved; therefore, the heat recovery defrosting and refrigerating device combines the high efficiency of evaporative cooling and system valves such as a shared evaporative condensation component and a water pump, realizes the high energy efficiency of refrigeration, fully absorbs the condensation heat, and further realizes the multi-stage defrosting effect.
In all embodiments of the present application, the terms "large" and "small" are relatively speaking, and the terms "upper" and "lower" are relatively speaking, so that descriptions of these relative terms are not repeated herein.
It should be appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the present application," or "as an alternative implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in this embodiment," "in the examples of the present application," or "as an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.
In various embodiments of the present application, it should be understood that the size of the serial number of each process described above does not mean that the execution sequence is necessarily sequential, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A heat recovery defrosting refrigerating device is characterized by comprising an evaporation condensing assembly, a compressor, an air cooler and a heat recoverer;
the evaporation and condensation assembly comprises a water distribution mechanism, a plate-tube heat exchanger, a water tank and a water pump, the water distribution mechanism, the plate-tube heat exchanger and the water tank are sequentially stacked from top to bottom, an outlet of the water pump is connected with the water distribution mechanism, and an inlet of the water pump is connected with the water tank;
the compressor is respectively connected with the air cooler and the heat recoverer;
the air cooler is connected with the plate-tube heat exchanger;
the heat recovery device is provided with a first loop and a second loop, wherein the inlet of the first loop is connected with the outlet of the compressor, and the outlet of the first loop is connected with the inlet of the plate-tube heat exchanger; and the inlet of the second loop is connected with the outlet of the water pump, and the outlet of the second loop is connected with the air cooler.
2. The heat recovery defrosting refrigeration unit of claim 1 wherein the evaporative condensing assembly further comprises a first fan disposed above the water distribution mechanism.
3. The heat recovery defrosting and refrigerating device according to claim 1, wherein the air cooler comprises a heat exchanger, a pouring mechanism and a water recovery mechanism which are sequentially stacked from top to bottom, the heat exchanger is respectively connected with the compressor and the plate-tube heat exchanger, the pouring mechanism is connected with an outlet of the second loop, and the water recovery mechanism is connected with the water tank.
4. The heat recovery defrosting refrigeration unit of claim 3 wherein the air cooler further comprises a second fan disposed at the air intake end of the heat exchanger.
5. The heat recovery defrosting refrigeration unit of claim 1 further comprising a first shut-off valve disposed in the communication conduit between the outlet of the second circuit and the air cooler.
6. The heat recovery defrost refrigeration apparatus of claim 5, further comprising a second shut-off valve disposed in a communication conduit between an inlet of the second circuit and an outlet of the water pump.
7. The heat recovery defrosting refrigeration unit of claim 1 wherein the plate and tube heat exchanger is a serpentine tube heat exchanger.
8. The heat recovery defrosting refrigeration unit of claim 1 wherein the plate and tube heat exchanger is a plate and fin heat exchanger.
9. The heat recovery defrosting refrigeration unit of claim 1 further comprising a gas-liquid separator disposed in the communication conduit between the compressor and the air cooler.
10. The heat recovery defrosting refrigeration unit of claim 1 further comprising an accumulator disposed in the communication conduit between the air cooler and the plate and tube heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120455500.XU CN214501776U (en) | 2021-03-02 | 2021-03-02 | Heat recovery defrosting and refrigerating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120455500.XU CN214501776U (en) | 2021-03-02 | 2021-03-02 | Heat recovery defrosting and refrigerating device |
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| CN214501776U true CN214501776U (en) | 2021-10-26 |
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| CN202120455500.XU Active CN214501776U (en) | 2021-03-02 | 2021-03-02 | Heat recovery defrosting and refrigerating device |
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