CN211146956U - Refrigeration system for injection supercooling and air conditioner with refrigeration system - Google Patents
Refrigeration system for injection supercooling and air conditioner with refrigeration system Download PDFInfo
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- CN211146956U CN211146956U CN201922062929.8U CN201922062929U CN211146956U CN 211146956 U CN211146956 U CN 211146956U CN 201922062929 U CN201922062929 U CN 201922062929U CN 211146956 U CN211146956 U CN 211146956U
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Abstract
The utility model provides an draw refrigerating system who penetrates subcooling and have its air conditioning equipment. The system comprises a compressor, a condenser, a first throttling device, an evaporator, a subcooler and an ejector, wherein the ejector is provided with a nozzle, an extraction opening and an ejector outlet; the compressor is provided with an air outlet, an air return port and an air supplement port; the subcooler is provided with a high-temperature cavity and a low-temperature cavity which are used for refrigerant to flow through and exchange heat with each other; an inlet of the nozzle of the ejector and an inlet of the condenser are communicated with the air outlet of the compressor; the outlet of the condenser is communicated with the evaporator through the high-temperature cavity of the subcooler and the first throttling device, and the outlet of the evaporator is communicated with the air return port of the compressor; the outlet of the low-temperature cavity of the subcooler is communicated with the air suction port, and the ejector outlet of the ejector is communicated with the air supplement port of the compressor. The system is simple, and the refrigerating capacity and the energy efficiency ratio of the refrigerating system can be improved.
Description
Technical Field
The utility model relates to a compression refrigeration technology field especially relates to an draw refrigerating system who penetrates subcooling and have its air conditioner device.
Background
In the existing vapor compression type refrigeration cycle, a refrigeration cycle mainly comprises a compressor, a condenser, an evaporator and a throttling device, and for the refrigeration cycle, the energy efficiency ratio is an important index for judging the energy saving of the refrigeration cycle. In order to improve the energy efficiency ratio of the air conditioner, a circulating system with air supply and enthalpy increase is adopted in most of the prior applications. The commonly used air-supplying and enthalpy-increasing type air conditioning circulating system mainly comprises a compressor, a condenser, an evaporator, a flash evaporator, an expansion valve or a capillary tube and the like; the compressor is a scroll compressor or a two-stage rolling rotor compressor with the functions of air supply and enthalpy increase, and the compression process is divided into two sections by the air supply process to form a quasi-two-stage compression process. And air supplement of the compressor is carried out through a gas outlet of the flash evaporator.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be different from current air conditioning system who takes the tonifying qi to increase the refrigeration cycle system of enthalpy, for drawing the refrigerating system who penetrates the subcooling, still provide one kind and have this air conditioning equipment who draws the refrigerating system who penetrates the subcooling.
On one hand, the utility model provides an injection subcooling refrigerating system, including compressor, condenser, subcooler, first throttling arrangement and evaporimeter, wherein, still include the ejector, the ejector has nozzle, extraction opening and ejector export;
the compressor is provided with an air outlet, an air return port and an air supplement port; the subcooler is provided with a high-temperature cavity and a low-temperature cavity which are used for refrigerant to flow through and exchange heat with each other;
an inlet of the nozzle of the ejector and an inlet of the condenser are communicated with the air outlet of the compressor;
the outlet of the condenser is communicated with the evaporator through the high-temperature cavity of the subcooler and the first throttling device, and the outlet of the evaporator is communicated with the air return port of the compressor;
the outlet of the low-temperature cavity of the subcooler is communicated with the air suction port, and the ejector outlet of the ejector is communicated with the air supplement port of the compressor.
Optionally, the refrigeration system for injecting supercooling further comprises a low-temperature cavity inlet pipe communicated with an inlet of the low-temperature cavity of the subcooler, and a second throttling device arranged on the low-temperature cavity inlet pipe;
and the inlet of the low-temperature cavity inlet pipe is connected to a refrigerant pipeline between the high-temperature cavity and the first throttling device.
Optionally, the high temperature chamber is defined by a channel tube extending in a bending manner within the low temperature chamber.
Optionally, the first throttling device is an electronic expansion valve, a thermal expansion valve or a capillary tube;
the second throttling device is an electronic expansion valve, a thermal expansion valve or a capillary tube.
Optionally, the compressor is an inverter compressor;
and an on-off valve is arranged on a refrigerant pipeline between the inlet of the nozzle and the air outlet of the compressor so as to control the on-off of the on-off valve according to the frequency of the compressor.
Optionally, the condenser includes two collecting pipes, a plurality of flat pipes, and a plurality of fins; two ends of the flat pipe are respectively connected with the two collecting pipes, and the plane of the flat pipe in the width direction is arranged in parallel relative to the axial direction of the collecting pipes; the plurality of fins are mounted on the plurality of flat tubes.
Optionally, the flat tubes are arranged in two rows, and the two rows of flat tubes are arranged in sequence along a direction perpendicular to the flat tubes; and is
And the two rows of flat pipes are alternately arranged along the axial direction of the collecting pipe.
Optionally, a portion of each flat tube is bowed towards the air outlet side of the condenser.
On the other hand, the utility model also provides an air conditioning device, it includes that any kind of above-mentioned draws the refrigerating system who penetrates the subcooling.
The utility model discloses an draw refrigerating system and air conditioning equipment who penetrates subcooling, because have subcooler and, ejector and special hookup location, the system is simple, and can improve refrigerating system's refrigerating output and energy efficiency ratio.
And furthermore, whether air is supplied or not can be controlled according to the rotating speed of the compressor, so that the energy efficiency is further improved, and the energy-saving effect is obvious.
Furthermore, the special structure of the condenser can increase the heat exchange area of the condenser by bending the condenser to form a heat dissipation enhancing part on the basis of not increasing the overall size of the condenser, so that the heat dissipation capacity of the condenser can be improved. And a microchannel flat tube and a collecting tube structure are adopted, so that the heat exchange efficiency is improved. The special structure of the condenser of the utility model is also particularly suitable for the refrigeration system of the utility model, which can inject the supercooling.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic diagram of a refrigeration system with induced subcooling according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a condenser in the ejector subcooling refrigeration system shown in fig. 1.
Detailed Description
Fig. 1 is a schematic diagram of a refrigeration system with injection subcooling according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a refrigeration system for injecting supercooling. The refrigeration system for injecting supercooling comprises a compressor 10, a condenser 20, a subcooler 30, a first throttling device 40, an evaporator 50 and an injector 60. The eductor 60 has a nozzle 61, a bleed port 62, and an eductor outlet. The compressor 10 may be an air-supplementing enthalpy-increasing compressor 10, and may have an air outlet, a return air port, and an air-supplementing port. The subcooler 30 has a high temperature chamber and a low temperature chamber for the refrigerant to flow therethrough and exchange heat therebetween, that is, the subcooler 30 is used for the heat exchange between the high temperature refrigerant and the low temperature refrigerant. The inlet of the nozzle 61 of the ejector 60 and the inlet of the condenser 20 are both communicated with the air outlet of the compressor 10, that is, the refrigerant flowing out of the compressor 10 can flow to the condenser 20 and the nozzle 61 of the ejector 60. The outlet of the condenser 20 communicates with the evaporator 50 through the high temperature chamber of the cooler 30 and the first throttling means 40, and the outlet of the evaporator 50 communicates with the return port of the compressor 10. The outlet of the low temperature chamber of the subcooler 30 is communicated with the extraction opening 62, and the ejector outlet of the ejector 60 is communicated with the air supplement opening of the compressor 10.
In some embodiments of the present invention, the refrigeration system for injecting supercooling further includes a low temperature chamber inlet pipe communicated with the inlet of the low temperature chamber of the subcooler 30, and a second throttling device 70 disposed on the low temperature chamber inlet pipe. The inlet of the inlet pipe of the low temperature chamber is connected to the refrigerant pipe between the high temperature chamber and the first throttling device 40. Further, the high temperature chamber is defined by a passage tube extending in a bent manner in the low temperature chamber. The first throttling device 40 is an electronic expansion valve, a thermal expansion valve or a capillary tube; the second throttling device 70 is an electronic expansion valve, a thermostatic expansion valve or a capillary tube.
In some embodiments of the present invention, the compressor 10 is a variable frequency compressor; an on-off valve is arranged on a refrigerant pipeline between the inlet of the nozzle 61 and the air outlet of the compressor 10 so as to control the on-off of the on-off valve according to the frequency of the compressor 10. For example, when the rotation speed of the compressor 10 is relatively high, the air supply and enthalpy increase are performed on the compressor 10, and when the rotation speed of the compressor 10 is relatively low, the air supply amount of the compressor 10 can be reduced by controlling the on-off valve, even the air supply is not performed.
In some embodiments of the present invention, as shown in fig. 2, the condenser 20 includes two collecting pipes 21, a plurality of flat pipes 22, and a plurality of fins; two ends of the flat pipe 22 are respectively connected with the two collecting pipes 21, and the plane of the flat pipe 22 in the width direction is arranged in parallel relative to the axial direction of the collecting pipes 21; a plurality of fins are mounted on the plurality of flat tubes 22. Alternatively, the flat tubes 22 are arranged in two rows, and the two rows of flat tubes 22 are sequentially arranged along a direction perpendicular to the flat tubes 22; and the two rows of flat tubes 22 are alternately arranged along the axial direction of the collecting main 21. The arrangement form of the flat tubes 22 is favorable for the flow and heat exchange of air flow, and the heat exchange effect can be obviously improved.
In order to further improve the heat exchange efficiency, as shown in fig. 2, a part of the position of each flat tube 22 is arched toward the air outlet side of the condenser 20. The heat exchange area of the condenser 20 can be increased by forming the heat dissipation enhancing part 23 by bending the condenser 20 without increasing the overall size of the condenser 20, so that the heat dissipation capability of the condenser 20 can be improved. Preferably, an axial flow fan may be disposed on the air outlet side of the condenser 20, and an arch is disposed on both sides of each flat tube 22, which are located on the axial flow fan, so as to dispose a heat dissipation enhancing portion 23 in a region where heat exchange is weak on both sides of the axial flow fan, thereby improving heat dissipation efficiency.
The ejector 60 further includes a suction chamber, a mixing chamber, and a pressure expansion chamber, and sucks the gaseous refrigerant from the low temperature chamber of the subcooler 30 by the ejector effect of the refrigerant from the air outlet of the compressor 10, thereby realizing the mixing of the refrigerant and the exchange of energy. The utility model discloses a draw refrigerant system who penetrates subcooling at during operation, the gaseous state refrigerant of compressor 10 gas outlet high temperature high pressure falls into two branch roads, a branch road gets into condenser 20 condensation and becomes saturated liquid, then get into subcooler 30 and in intraductal by further cooling, the liquid refrigerant that comes out from subcooler 30 falls into two branch roads, a branch road becomes low temperature low pressure gas-liquid two-phase after the throttling of first throttling arrangement 40, get into evaporimeter 50 and evaporate into superheated steam, then get into compressor 10 and compress into the refrigerant superheated steam of high temperature high pressure and then discharge, another branch road liquid refrigerant that comes out from subcooler 30 gets into in subcooler 30 after the throttling of second throttling arrangement 70 becomes low temperature gas-liquid two-phase, carry out the heat transfer with intraductal high temperature refrigerant, gaseous state refrigerant after the heat absorption is inhaled in ejector 60 because of the pressure differential effect of ejector 60, the other branch of high-temperature high-pressure gaseous refrigerant at the outlet of the compressor 10 enters the ejector 60, is uniformly mixed with the sucked low-temperature low-pressure gaseous refrigerant in the ejector 60, is changed into gaseous refrigerant with intermediate pressure, is introduced into the compressor 10 for air supplement, is condensed into high-temperature high-pressure refrigerant superheated steam, and is discharged, so that a circulation process is completed. Compared with the traditional refrigeration cycle, the embodiment of the utility model has the advantages that the supercooling degree of the liquid refrigerant is increased by the subcooler 30, so that the refrigerating capacity is improved; the gas from ejector 60 gets into compressor 10 for the consumption of compressor 10 increases, and the inventor finds, the promotion of refrigerating capacity is greater than the consumption of compressor 10 far away, so this system can ensure that energy efficiency ratio COP obtains promoting through carrying out reasonable design to compressor 10 and ejector 60, thereby makes refrigerating system performance obtain promoting, and is more energy-conserving.
The embodiment of the utility model provides an air conditioning equipment is still provided, its refrigerating system who draws supercooling that includes any of the above-mentioned embodiments.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. The refrigerating system comprises a compressor, a condenser, a first throttling device and an evaporator, and is characterized by further comprising a subcooler and an ejector, wherein the ejector is provided with a nozzle, an extraction opening and an ejector outlet;
the compressor is provided with an air outlet, an air return port and an air supplement port; the subcooler is provided with a high-temperature cavity and a low-temperature cavity which are used for refrigerant to flow through and exchange heat with each other;
an inlet of the nozzle of the ejector and an inlet of the condenser are communicated with the air outlet of the compressor;
the outlet of the condenser is communicated with the evaporator through the high-temperature cavity of the subcooler and the first throttling device, and the outlet of the evaporator is communicated with the air return port of the compressor;
the outlet of the low-temperature cavity of the subcooler is communicated with the air suction port, and the ejector outlet of the ejector is communicated with the air supplement port of the compressor.
2. The system for injecting subcooling as described in claim 1, further comprising a low temperature chamber inlet tube in communication with an inlet of said low temperature chamber of said subcooler, and a second throttling means disposed on said low temperature chamber inlet tube;
and the inlet of the low-temperature cavity inlet pipe is connected to a refrigerant pipeline between the high-temperature cavity and the first throttling device.
3. The injection subcooling refrigeration system as described in claim 1,
the high-temperature cavity is defined by a channel pipe which is bent and extended in the low-temperature cavity.
4. The injection subcooling refrigeration system as described in claim 2,
the first throttling device is an electronic expansion valve, a thermal expansion valve or a capillary tube;
the second throttling device is an electronic expansion valve, a thermal expansion valve or a capillary tube.
5. The injection subcooling refrigeration system as described in claim 1,
the compressor is a variable frequency compressor;
and an on-off valve is arranged on a refrigerant pipeline between the inlet of the nozzle and the air outlet of the compressor so as to control the on-off of the on-off valve according to the frequency of the compressor.
6. The system of claim 1, wherein the condenser comprises two headers, a plurality of flat tubes, and a plurality of fins; two ends of the flat pipe are respectively connected with the two collecting pipes, and the plane of the flat pipe in the width direction is arranged in parallel relative to the axial direction of the collecting pipes; the plurality of fins are mounted on the plurality of flat tubes.
7. The injection subcooling refrigeration system as described in claim 6,
the flat tubes are arranged into two rows, and the two rows of flat tubes are sequentially arranged along the direction perpendicular to the flat tubes; and is
And the two rows of flat pipes are alternately arranged along the axial direction of the collecting pipe.
8. The injection subcooling refrigeration system as described in claim 6,
and part of the flat pipe is arched towards the air outlet side of the condenser.
9. An air conditioning apparatus comprising the injection subcooling refrigeration system as described in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062929.8U CN211146956U (en) | 2019-11-26 | 2019-11-26 | Refrigeration system for injection supercooling and air conditioner with refrigeration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062929.8U CN211146956U (en) | 2019-11-26 | 2019-11-26 | Refrigeration system for injection supercooling and air conditioner with refrigeration system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280524A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Large temperature difference heat exchange system provided with multiple ejectors |
| CN113280523A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Injection type heat pump circulating device with supercooling and preheating functions |
| CN113418314A (en) * | 2021-06-08 | 2021-09-21 | 瀚润联合高科技发展（北京）有限公司 | Ejection enthalpy-increasing evaporation cooling type air-cooled heat pump unit |
-
2019
- 2019-11-26 CN CN201922062929.8U patent/CN211146956U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280524A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Large temperature difference heat exchange system provided with multiple ejectors |
| CN113280523A (en) * | 2021-05-31 | 2021-08-20 | 哈尔滨工业大学 | Injection type heat pump circulating device with supercooling and preheating functions |
| CN113280524B (en) * | 2021-05-31 | 2022-06-10 | 哈尔滨工业大学 | Large temperature difference heat exchange system provided with multiple ejectors |
| CN113418314A (en) * | 2021-06-08 | 2021-09-21 | 瀚润联合高科技发展（北京）有限公司 | Ejection enthalpy-increasing evaporation cooling type air-cooled heat pump unit |
| CN113418314B (en) * | 2021-06-08 | 2022-11-08 | 瀚润联合高科技发展（北京）有限公司 | Ejection enthalpy-increasing evaporation cooling type air-cooled heat pump unit |
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