CN215864154U - Refrigeration equipment with built-in heat regenerator and flooded shell and tube evaporator thereof - Google Patents
Refrigeration equipment with built-in heat regenerator and flooded shell and tube evaporator thereof Download PDFInfo
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- CN215864154U CN215864154U CN202122317396.0U CN202122317396U CN215864154U CN 215864154 U CN215864154 U CN 215864154U CN 202122317396 U CN202122317396 U CN 202122317396U CN 215864154 U CN215864154 U CN 215864154U
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Abstract
The application discloses refrigeration plant of built-in regenerator and flooded shell and tube evaporimeter thereof. The refrigerating equipment with the built-in heat regenerator and the flooded shell-tube evaporator thereof comprise a shell, a heat exchange tube bundle and a heat regenerator. An evaporation cavity is formed in the shell, and an evaporation inlet and an evaporation outlet which are communicated with the evaporation cavity are formed at the bottom and the top of the shell respectively. The heat exchange tube bundle is arranged in the evaporation cavity, and a heat exchange channel for circulating cold water is formed in the heat exchange tube bundle. The heat regenerator is arranged in the evaporation cavity and above the heat exchange tube bundle, a heat regeneration channel for circulating refrigerants is formed in the heat regenerator, the heat regenerator is provided with a refrigerant inlet communicated with the heat regeneration channel and a condensation outlet communicated with the condenser, and the heat regenerator is provided with a refrigerant outlet communicated with the heat regeneration channel and communicated with the evaporation inlet through a throttling expansion device. The refrigerating equipment with the built-in heat regenerator and the flooded shell and tube evaporator thereof have good refrigerating effect and high refrigerating efficiency.
Description
Technical Field
The utility model relates to the field of refrigeration, in particular to a flooded shell and tube evaporator with a built-in heat regenerator.
Background
The evaporator is one of main heat exchange devices in refrigeration equipment, and low-temperature condensed liquid enters the evaporator to exchange heat with liquid in the pipe, so that the liquid is gasified to absorb heat, and the refrigeration effect is achieved. Flooded shell and tube evaporators are generally of the horizontal type construction, with the refrigerant evaporating outside the shell inner tube and the secondary refrigerant flowing inside the tube. Refrigerant liquid enters the shell from the bottom or lower side of the shell, and vapor is led out from the upper part and then returns to the compressor. The common characteristic of flooded shell and tube evaporators is that the interior of the evaporator is filled with refrigerant, and the refrigerant vapor generated by heat absorption and evaporation in operation can be continuously separated from the liquid refrigerant. The advantage is that the refrigerant in the shell side can fully contact with the heat transfer surface of the tube side, and has a larger heat transfer coefficient. However, the defects are that when the evaporation pressure is low, the temperature of the bottom of the shell is increased due to a hydrostatic column formed by the liquid refrigerant in the shell, the heat transfer temperature difference is reduced, the performance of the unit is influenced, the refrigeration effect is poor, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
One advantage of the present invention is that the refrigeration equipment with a built-in heat regenerator and the flooded shell and tube evaporator thereof are provided, which can improve the supercooling degree of the liquid refrigerant and the superheat degree after heat exchange evaporation, and improve the refrigerating capacity of the unit refrigerant, thereby improving the refrigerating effect and the refrigerating efficiency.
One advantage of the present invention is to provide a refrigeration device with a built-in heat regenerator and a flooded shell and tube evaporator thereof, which can improve the suction superheat degree of a refrigerant flowing out of an evaporation outlet and entering a compressor, thereby improving the exhaust superheat degree, improving the oil separation efficiency of a subsequent oil separator, reducing the risk of oil loss of the compressor, reducing the oil content in the evaporator and/or condenser of the refrigeration device, reducing the thermal resistance, and improving the performance of the refrigeration device.
One advantage of the present invention is to provide a refrigeration device with a built-in heat regenerator and a flooded shell and tube evaporator thereof, which can promote the throttle expansion device to increase the opening degree due to the increase of the suction superheat degree of the refrigeration device, increase the refrigerant liquid supply amount of the flooded shell and tube evaporator, and facilitate the increase of the refrigeration amount.
To achieve at least one of the above advantages, an advantage of the present invention is to provide a flooded shell and tube evaporator with a built-in heat regenerator, comprising a shell, wherein an evaporation chamber is formed in the shell, and an evaporation inlet and an evaporation outlet which are communicated with the evaporation chamber are respectively formed at the bottom and the top of the shell; the heat exchange tube bundle is arranged in the evaporation cavity, a heat exchange channel for circulating cold water is formed in the heat exchange tube bundle, and the shell is provided with a cold water inlet and a cold water outlet which are communicated with the heat exchange channel; and the heat regenerator is arranged in the evaporation cavity and positioned above the heat exchange tube bundle, a heat recovery channel for circulating the refrigerant is formed in the heat regenerator, the heat regenerator is provided with a refrigerant inlet communicated with the heat recovery channel and communicated with a condensation outlet of the condenser, and the heat regenerator is provided with a refrigerant outlet communicated with the heat recovery channel and communicated with the evaporation inlet through a throttling expansion device.
According to an embodiment of the utility model, the regenerator is a finned heat exchanger.
According to an embodiment of the utility model, the fin material of the fin type heat exchanger is aluminum foil, copper foil or stainless steel foil, and the heat exchange tube of the fin type heat exchanger is copper tube or stainless steel tube.
According to an embodiment of the utility model, a front water cavity and a rear water cavity are formed in the shell, the evaporation cavity is formed between the front water cavity and the rear water cavity, the evaporation cavity is not communicated with the front water cavity and the rear water cavity, the cold water inlet and the cold water outlet are both communicated with the rear water cavity, the heat exchange tube bundle comprises at least one group of heat exchange tube assemblies, each heat exchange tube assembly comprises a forward heat exchange tube and a return heat exchange tube, and two ends of the forward heat exchange tube and the return heat exchange tube are both communicated with the front water cavity and the rear water cavity.
According to an embodiment of the utility model, the heat exchange tube bundle comprises a plurality of heat exchange tubes, and the plurality of heat exchange tubes are arranged in a triangular tube arrangement mode and are arranged below the central line of the shell.
According to an embodiment of the utility model, the liquid level indicator further comprises a liquid level indicator, and the liquid level indicator is mounted outside the shell.
To achieve at least one of the above advantages, the present invention provides a refrigerator with a built-in regenerator, including: a compressor for compressing refrigerant, said compressor having a discharge port and a suction port; a condenser for condensing the refrigerant, the condenser having a condensing outlet and a condensing inlet, the condensing inlet of the condenser being in communication with the exhaust port; and the number of the first and second groups,
the refrigerant inlet of the heat regenerator is communicated with the condensation outlet, the refrigerant outlet of the heat regenerator is communicated with one end of the throttling expansion device, the other end of the throttling expansion device is communicated with the evaporation inlet, and the evaporation outlet is communicated with the air suction port of the compressor.
According to an embodiment of the utility model, the expansion device is a throttle expansion valve.
According to an embodiment of the utility model, the condenser comprises a condenser, a compressor, a condenser and an oil separator.
Drawings
FIG. 1 shows a schematic of the flooded shell and tube evaporator of the present invention.
Fig. 2 is a schematic view showing a refrigerant circulation state when the refrigerating apparatus of the present invention performs refrigeration.
FIG. 3 shows a cross-sectional view A-A of the flooded shell and tube evaporator of FIG. 1.
Fig. 4 shows a schematic view of the construction of the regenerator of the present invention.
100: flooded shell and tube evaporator, 200: a refrigeration device;
10: a housing, 11: evaporation chamber, 111: evaporation inlet, 112: evaporation outlet, 12: front water cavity, 13: rear water chamber, 131: cold water inlet, 132: cold water outlet, 14: an oil return port;
20: a heat exchange tube bundle;
30: regenerator, 31: regenerative inlet pipe, 311: refrigerant inlet, 32: regenerative heat outlet pipe, 321: refrigerant outlet, 33: a heat regenerative heat exchange tube;
40: a liquid viewing mirror;
50: a compressor;
60: a condenser;
70: a throttle expansion device;
80: an oil separator.
Detailed Description
The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 to 4, a flooded shell and tube evaporator 100 with a built-in regenerator 30 according to a preferred embodiment of the utility model will be described in detail below, wherein the flooded shell and tube evaporator 100 comprises a shell 10, a heat exchange tube bundle 20 and a regenerator 30.
An evaporation chamber 11 is formed in the housing 10, an evaporation inlet 111 communicated with the evaporation chamber 11 is formed at the bottom of the housing 10, and an evaporation outlet 112 communicated with the evaporation chamber 11 is formed at the top of the housing 10. Thus, when the refrigerant evaporates and cools in the evaporation cavity 11, the refrigerant enters the evaporation cavity 11 from the evaporation inlet 111 at the bottom of the casing 10, and after evaporating in the evaporation cavity 11, the refrigerant flows out from the evaporation outlet 112 at the top of the casing 10 along the bottom-up direction.
The heat exchange tube bundle 20 is disposed in the evaporation cavity 11, a heat exchange channel for circulating cold water is formed in the heat exchange tube bundle 20, and the shell 10 is formed with a cold water inlet 131 and a cold water outlet 132 which are communicated with the heat exchange channel.
The heat regenerator 30 is arranged in the evaporation chamber 11, the heat regenerator 30 is located above the heat exchange tube bundle 20, a heat recovery channel for circulating the refrigerant is formed in the heat regenerator 30, and the heat regenerator 30 is provided with a refrigerant inlet 311 communicated with the heat recovery channel for communicating with the condensation outlet of the condenser 60. The regenerator 30 is provided with a refrigerant outlet 321 communicating with the regenerative passage for communicating with the evaporation inlet 111 through a throttle expansion device 70. That is, when the flooded shell and tube evaporator 100 is applied to the refrigeration apparatus 200, a communication path from the condensation outlet of the condenser 60, the refrigerant inlet 311 of the regenerator 30, the regenerative channel of the regenerator 30, the refrigerant outlet 321 of the regenerator 30, the throttle expansion device 70, and the evaporation inlet 111 to the evaporation outlet 112 can be formed for the refrigerant to flow.
Thus, when the flooded shell and tube evaporator 100 of the present invention is used, the refrigerant flow path is: a condensing outlet of the condenser 60, a refrigerant inlet 311 of the regenerator 30, a regenerative passage of the regenerator 30, a refrigerant outlet 321 of the regenerator 30, the throttle expansion device 70, the evaporation inlet 111, and the evaporation outlet 112. The circulation path of the cold water is as follows: a cold water inlet 131 of the shell 10, heat exchange channels of the heat exchange tube bundle 20 and a cold water outlet 132 of the shell. In this process, the refrigerant entering the regenerative channel of the regenerator 30 from the condensation outlet of the condenser 60 is a high-temperature high-pressure liquid refrigerant, and the liquid refrigerant enters the evaporation chamber 11 through the evaporation inlet 111 of the flooded shell and tube evaporator 100 after being throttled and depressurized by the throttle expansion device 70. Meanwhile, the cold water enters the heat exchange tube bundle 20 through the cold water inlet, and exchanges heat with the refrigerant entering the shell 10 from the evaporation inlet 111 at the bottom of the shell 10 through the heat exchange tube bundle 20, so that the refrigerant is boiled and gasified to absorb heat for refrigeration. The gasified gaseous refrigerant continues to move upwards, and when the gasified gaseous refrigerant passes through the heat regenerator 30, the gaseous refrigerant exchanges heat with the high-temperature high-pressure liquid refrigerant in the heat regenerator 30 to increase the temperature of the refrigerant, so that the superheat degree of the refrigerant flowing out of the evaporation outlet 112 is increased, the refrigerant flowing out subsequently can enter the air suction port of the compressor 50 in a superheated state, the throttle expansion device 70 can be promoted to increase the opening degree, the refrigerant liquid supply amount of the flooded shell-and-tube evaporator 100 is increased, and the increase of the refrigerating capacity is facilitated. In the continuous refrigeration cycle process, since the temperature of the high-temperature and high-pressure liquid refrigerant entering the regenerative channel from the refrigerant inlet 311 of the regenerator 30 is reduced after the heat exchange with the gaseous refrigerant, the supercooling degree of the refrigerant entering the evaporation inlet 111 through the throttling expansion device 70 can be reduced, that is, the enthalpy of the refrigerant at the inlet side of the flooded shell and tube evaporator 100 is reduced, the cooling capacity per unit refrigerant is increased, and thus the cooling capacity and the cooling efficiency of the flooded shell and tube evaporator 100 are increased.
Preferably, referring to fig. 4, the regenerator 30 includes a recuperative inlet pipe 31, a recuperative outlet pipe 32, and a set of recuperative heat exchange pipes 33, which are connected in sequence. The regenerative inlet pipe 31 and the regenerative outlet pipe 32 at least partially extend out of the shell 10, the refrigerant inlet 311 is formed at the extending portion of the regenerative inlet pipe 31, and the refrigerant outlet 321 is formed at the extending portion of the regenerative outlet pipe 32, so that the installation and communication of the regenerator 30 and the external condenser 60 and the external throttle expansion device 70 are facilitated, and the installation efficiency of the flooded shell and tube evaporator 100 in use is improved. The recuperative channel is formed within the recuperative heat exchange tube 33.
Further, the heat regenerator 30 is a finned heat exchanger, and has good and stable heat transfer performance and small resistance.
Further, the fins of the heat regenerator 30 are made of various materials such as aluminum foil, copper foil or stainless steel foil, and the heat exchange tubes of the heat regenerator 30 are made of various materials such as copper tubes or stainless steel tubes, and are combined in various forms.
Preferably, referring to fig. 1, a front water cavity 12 and a rear water cavity 13 are formed in the shell 10, the evaporation cavity 11 is formed between the front water cavity 12 and the rear water cavity 13 and is not communicated with the front water cavity 12 and the rear water cavity 13, the cold water inlet 131 and the cold water outlet 132 are both communicated with the rear water cavity 13, the heat exchange tube bundle 20 includes at least one set of heat exchange tube assembly, the heat exchange tube assembly includes at least one forward heat exchange tube and one return heat exchange tube which are arranged at intervals, and both ends of the forward heat exchange tube and the return heat exchange tube are both communicated with the front water cavity 12 and the rear water cavity 13. Therefore, during the refrigeration cycle, when cold water flows in the shell 10, the cold water can flow into the rear water cavity 13 from the cold water inlet 131 and flow to the front water cavity 12 along the forward heat exchange tube to form a first flow path, and then flow back to the rear water cavity 13 from the front water cavity 12 through the backward heat exchange tube and flow out from the cold water outlet 132 to form a second flow path, so that the cold water can flow in multiple paths in the tube path of the heat exchange tube bundle 20 and exchange heat with the refrigerant in the evaporation cavity 11 of the shell 10, the heat exchange area of the cold water and the refrigerant is increased, and the refrigerating capacity and the refrigerating efficiency of the flooded evaporator 100 are further improved. Specifically, a split-range partition plate is arranged in the rear water cavity 13 to divide the rear water cavity 13 into an inflow cavity and an outflow cavity which are not communicated with each other, the inflow cavity is communicated with the cold water inlet 131 and the outgoing heat exchange tube, and the outflow cavity is communicated with the return heat exchange tube and the cold water outlet 132 to facilitate multi-flow of the cold water.
Further, the heat exchange tube bundle 20 includes a plurality of heat exchange tubes, that is, a plurality of round trip heat exchange tubes and a plurality of round trip heat exchange tubes, and a plurality of the heat exchange tubes are arranged in a triangular tube arrangement manner and are disposed below the central line of the shell 10, so that the heat exchange area between the cold water and the refrigerant is increased, and the refrigeration effect is improved.
Furthermore, the outer wall of the heat exchange tube assembly is provided with external threads, so that the flowing mode of fluid is improved, the trimming stress is increased, the heat exchange coefficient is improved, the heat exchange efficiency is greatly improved, and the temperature difference resistance and the pressure difference resistance are good.
Further, the shell 10 is formed with an oil return port 14 communicated with the evaporation cavity 11, and the oil return port 14 is located above the heat exchange tube bundle 20 and is used for communicating with an oil tank of the compressor 50 through an oil return pipeline to return oil.
Preferably, referring to fig. 1, the flooded shell and tube evaporator 100 further comprises at least one sight glass 40, the sight glass 40 being mounted outside the shell 10, the sight glass 40 being located at a position convenient for viewing the refrigerant level.
Specifically, the liquid observation mirror 40 may be a plurality of liquid observation mirrors 40, and the plurality of liquid observation mirrors 40 are arranged at intervals in the axial direction of the housing 10.
Referring to fig. 1 to 3, the present invention also provides a refrigeration apparatus 200 with a built-in regenerator 30, comprising a compressor 50 for compressing the refrigerant, a condenser 60 for condensing the refrigerant, a flooded shell and tube evaporator 100 as described above, and a throttle expansion device 70. The compressor 50 has a discharge port and a suction port. The condenser 60 has a condensation outlet and a condensation inlet, and the condensation inlet of the condenser 60 is used for communicating with the exhaust port. The refrigerant inlet 311 of the regenerator 30 communicates with the condensation outlet. Both ends of the throttling expansion device 70 are respectively communicated with the refrigerant outlet 321 of the heat regenerator 30 and the evaporation inlet 111 of the flooded shell and tube evaporator 100, and the evaporation outlet 112 of the flooded shell and tube evaporator 100 is communicated with the suction port of the compressor 50.
Thus, when the refrigeration apparatus 200 of the present invention is used, the refrigerant flow path is: the discharge port of the compressor 50, the condensation inlet of the condenser 60, the condensation outlet of the condenser 60, the refrigerant inlet 311 of the regenerator 30, the regeneration channel of the regenerator 30, the refrigerant outlet 321 of the regenerator 30, the throttle expansion device 70, the evaporation inlet 111 and the evaporation outlet 112 of the flooded shell and tube evaporator 100. The circulation path of the cold water is as follows: a cold water inlet 131 of the shell 10, heat exchange channels of the heat exchange tube bundle 20 and a cold water outlet 132 of the shell 10. As can be understood from the foregoing explanation, when the refrigerant flows in the refrigeration apparatus 200, the medium-temperature high-pressure liquid refrigerant discharged from the condenser 60 firstly enters the heat regenerator 30 before flowing out of the heat regenerator 30 into the shell 10 of the flooded shell and tube evaporator 100, the cold water in the heat exchange tube bundle 20 in the shell 10 exchanges heat, and when the refrigerant moves upward in a gaseous form after exchanging heat with the cold water and flows through the heat regenerator 30, the gaseous low-pressure refrigerant exchanges heat with the medium-temperature high-pressure refrigerant in the heat regenerator 30 again, so that the temperature of the gaseous refrigerant can be increased, and the superheat degree of the refrigerant flowing out of the evaporation outlet 112 can be increased, so that the refrigerant can enter a compressor suction port in a superheated state, that is, the temperature of the refrigerant discharged into an oil separator subsequently from the compressor 50 is also higher, therefore, the oil separation efficiency of the subsequent oil separator can be improved, and the risk of oil loss of the compressor is reduced. Meanwhile, the gaseous low-pressure refrigerant exchanges heat with the medium-temperature high-pressure refrigerant in the heat regenerator 30 again, so that the supercooling degree of the liquid refrigerant entering the evaporation inlet 111 from the heat regenerator 30 through the throttling expansion device 70 can be reduced, that is, the enthalpy value of the refrigerant at the inlet side of the flooded shell and tube evaporator 100 is reduced, the refrigerating capacity of the refrigerant per unit is increased, and the refrigerating capacity and the refrigerating efficiency of the flooded shell and tube evaporator 100 are increased.
Preferably, the throttle expansion device 70 is a throttle expansion valve. Specifically, the throttle expansion valve 70 may be an electronic expansion valve or a thermal expansion valve.
Preferably, the refrigeration device 200 includes an oil separator 80, and the oil separator 80 is respectively communicated with the condenser 60 and the compressor 50. Because the suction superheat degree of the refrigerant entering the compressor 50 is high, the temperature of the refrigerant discharged from the exhaust port of the compressor 50 is also high, so that the oil separation efficiency of the oil separator 80 is improved, the risk of oil loss of the compressor 50 is reduced, the oil content in the condenser 60 and the flooded shell and tube evaporator 100 in the refrigeration equipment 200 is reduced, the thermal resistance is reduced, the heat transfer coefficients of the flooded shell and tube evaporator 100 and the condenser 60 are improved, the evaporation temperature is increased, the condensation temperature is reduced, and the operation energy efficiency of the refrigeration equipment is improved.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are given by way of example only and are not limiting of the utility model. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. The flooded shell and tube evaporator of the built-in heat regenerator comprises:
the evaporation device comprises a shell, an evaporation cavity is formed in the shell, and an evaporation inlet and an evaporation outlet which are communicated with the evaporation cavity are formed at the bottom and the top of the shell respectively;
the heat exchange tube bundle is arranged in the evaporation cavity, a heat exchange channel for circulating cold water is formed in the heat exchange tube bundle, and the shell is provided with a cold water inlet and a cold water outlet which are communicated with the heat exchange channel; and the number of the first and second groups,
the heat regenerator is arranged in the evaporation cavity and positioned above the heat exchange tube bundle, a heat recovery channel for circulating refrigerant is formed in the heat regenerator, the heat regenerator is provided with a refrigerant inlet communicated with the heat recovery channel and communicated with a condensation outlet of the condenser, and the heat regenerator is provided with a refrigerant outlet communicated with the heat recovery channel and communicated with the evaporation inlet through a throttling expansion device.
2. The flooded shell and tube evaporator of claim 1, wherein the regenerator comprises a reheat inlet tube, a reheat outlet tube, and a set of reheat heat exchange tubes, which are sequentially connected, at least a portion of the reheat inlet tube and the reheat outlet tube extends out of the shell, the refrigerant inlet is formed in the extended portion of the reheat inlet tube, the refrigerant outlet is formed in the extended portion of the reheat outlet tube, and the reheat channel is formed in the reheat heat exchange tube.
3. A flooded shell and tube evaporator as recited in claim 1 wherein the regenerator is a finned heat exchanger.
4. The flooded type shell and tube evaporator recited in claim 3, wherein the fin material of the fin type heat exchanger is aluminum foil, copper foil or stainless steel foil, and the heat exchange tube of the fin type heat exchanger is copper tube or stainless steel tube.
5. The flooded type shell and tube evaporator of claim 1, wherein a front water cavity and a rear water cavity are formed in the shell, the evaporation cavity is formed between the front water cavity and the rear water cavity and is not communicated with the front water cavity and the rear water cavity, the cold water inlet and the cold water outlet are both communicated with the rear water cavity, the heat exchange tube bundle includes a forward heat exchange tube and a backward heat exchange tube, and both ends of the forward heat exchange tube and the backward heat exchange tube are both communicated with the front water cavity and the rear water cavity.
6. The flooded shell and tube evaporator of claim 1, wherein the heat exchange tube bundle comprises a plurality of heat exchange tubes arranged in a triangular pattern and below the center line of the shell.
7. A flooded type shell and tube evaporator as recited in claim 1 further comprising a sight glass mounted outside the shell.
8. Refrigeration plant of built-in regenerator, characterized by, includes:
a compressor for compressing refrigerant, said compressor having a discharge port and a suction port;
a condenser for condensing the refrigerant, the condenser having a condensing outlet and a condensing inlet, the condensing inlet of the condenser being in communication with the exhaust port; and the number of the first and second groups,
a throttling expansion device and a flooded shell and tube evaporator as claimed in any one of claims 1 to 7, wherein the refrigerant inlet of the regenerator is communicated with the condensation outlet, the refrigerant outlet of the regenerator is communicated with one end of the throttling expansion device, the other end of the throttling expansion device is communicated with the evaporation inlet, and the evaporation outlet is communicated with the suction port of the compressor.
9. The refrigeration appliance according to claim 8 wherein said expansion device is a throttle expansion valve.
10. A refrigerating apparatus as recited in claim 8 including an oil separator having opposite ends communicating with said condenser and said compressor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122317396.0U CN215864154U (en) | 2021-09-24 | 2021-09-24 | Refrigeration equipment with built-in heat regenerator and flooded shell and tube evaporator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122317396.0U CN215864154U (en) | 2021-09-24 | 2021-09-24 | Refrigeration equipment with built-in heat regenerator and flooded shell and tube evaporator thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215864154U true CN215864154U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122317396.0U Active CN215864154U (en) | 2021-09-24 | 2021-09-24 | Refrigeration equipment with built-in heat regenerator and flooded shell and tube evaporator thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215864154U (en) |
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2021
- 2021-09-24 CN CN202122317396.0U patent/CN215864154U/en active Active
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