CN112136011B - Refrigerant liquefying element, refrigerant liquefier using same, heat exchanger and refrigeration cycle - Google Patents
Refrigerant liquefying element, refrigerant liquefier using same, heat exchanger and refrigeration cycle Download PDFInfo
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- CN112136011B CN112136011B CN201980030185.1A CN201980030185A CN112136011B CN 112136011 B CN112136011 B CN 112136011B CN 201980030185 A CN201980030185 A CN 201980030185A CN 112136011 B CN112136011 B CN 112136011B
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- refrigerant
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- decompression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention aims to provide a refrigerant liquefying element, a heat exchanger and a refrigeration cycle, which can improve the efficiency of the refrigeration cycle and realize miniaturization. The present invention is a refrigerant liquefying element 105 inserted into a pipe body 110, and including: an element main body 172; a spiral groove 173 provided on the outer periphery of the element body 172 and configured to cause the refrigerant to flow in a swirling manner; and a decompression and expansion mechanism 175 provided in an inner peripheral portion of the element main body 172, for decompressing and expanding the refrigerant to flow.
Description
Technical Field
The present invention relates to a refrigerant liquefying element for liquefying a refrigerant, and a refrigerant liquefier, a heat exchanger, and a refrigeration cycle using the refrigerant liquefying element.
Background
Conventionally, a so-called fin and tube condenser is known, which is configured by arranging a plurality of fins in parallel and by penetrating a serpentine tube between the fins (see, for example, patent document 1).
The condenser is generally incorporated into a refrigeration cycle for use.
It is proposed, for example, to incorporate a subcooler in the condenser to improve the efficiency of the refrigeration cycle.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2015-1317
Disclosure of Invention
[ problems to be solved by the invention ]
However, the conventional condenser has a problem that improvement in efficiency of the refrigeration cycle cannot be sufficiently achieved.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a refrigerant liquefying element that can improve the efficiency of a refrigeration cycle and can be reduced in size, and a refrigerant liquefier, a heat exchanger, and a refrigeration cycle using the refrigerant liquefying element.
[ means for solving the problems ]
The present invention is characterized by comprising: a main body; a spiral groove portion provided on an outer peripheral portion of the main body and configured to cause a refrigerant to flow in a swirling manner; and a decompression and expansion mechanism which is arranged on the inner periphery of the main body and enables the refrigerant to decompress and expand and flow.
The present invention is characterized by comprising a pipe body and a refrigerant liquefying element inserted into the pipe body, wherein the refrigerant liquefying element comprises: a main body; a spiral groove portion provided on an outer peripheral portion of the main body and configured to cause a refrigerant to flow in a swirling manner; and a decompression expansion mechanism which is arranged on the inner circumference of the main body and enables the refrigerant to decompress and expand and flow.
Further, the present invention is characterized by comprising a fin, a plurality of tubes, and a refrigerant liquefying element inserted into the tube on the outlet side, and the refrigerant liquefying element comprises: a main body; a spiral groove portion provided on an outer peripheral portion of the main body and configured to cause a refrigerant to flow in a swirling manner; and a decompression expansion mechanism which is arranged on the inner circumference of the main body and enables the refrigerant to decompress and expand and flow.
In these inventions, the refrigerant liquefying element includes the spiral groove portion in the outer peripheral portion thereof, through which the refrigerant flows in a swirling manner, and therefore the flow in the tube on the outlet side becomes a swirling flow, and the amount of heat radiation of the fin through the inner wall surface of the tube increases. Further, since the inner peripheral portion is provided with a decompression expansion mechanism for decompressing and expanding the refrigerant to flow, the refrigerant is decompressed and the temperature is lowered to cool the main body, thereby improving the degree of supercooling of the refrigerant.
[ Effect of the invention ]
In the present invention, the refrigerant liquefying element includes the spiral groove portion in the outer peripheral portion, in which the refrigerant flows in a swirling manner, and therefore the flow in the tube on the outlet side becomes a swirling flow, and the amount of heat radiation of the fin through the inner wall surface of the tube increases. Further, since the inner peripheral portion is provided with a decompression expansion mechanism for decompressing and expanding the refrigerant to flow, the refrigerant is decompressed and the temperature is lowered, thereby cooling the main body and improving the degree of supercooling of the refrigerant.
Drawings
Fig. 1 is a diagram showing a refrigeration cycle according to an embodiment.
Fig. 2 is a diagram showing a structure of the refrigerant liquefier.
Fig. 3 is a diagram showing a refrigerant liquefier according to another embodiment.
Fig. 4 is a diagram showing a refrigeration cycle according to another embodiment.
Fig. 5 is a diagram showing the structure of the pipe on the outlet side of the condenser.
Detailed Description
Fig. 1 shows a refrigeration cycle.
Reference numeral 1 denotes a compressor, and a fin-tube condenser 2 is connected to a discharge port of the compressor 1. The condenser 2 is connected to a pressure reducing device 3, and the pressure reducing device 3 is connected to a fin-tube evaporator 4.
The evaporator 4 is connected to a suction port of the compressor 1.
The condenser 2 includes a plurality of (5 in the present embodiment) straight tubes 21 to 25 and a plurality of fins 27, 27 \8230. The pipes 21 to 25 are serpentine pipes including an inlet-side pipe 21, an outlet-side pipe 25, and central pipes 22 to 24. The inlet-side pipe 21 is connected to the connection pipe 28. The outlet of the tube 21 is connected to the inlet of the tube 22 via a vent hole 51, and the outlet of the tube 22 is connected to the inlet of the tube 23 via a vent hole 52. The outlet of the tube 23 is connected to the inlet of the tube 24 via a vent 53, and the outlet of the tube 24 is connected to the inlet of the tube 25 via a vent 54. The outlet of the pipe 25 is connected to a connection pipe 29.
Reference numeral 81 denotes a condenser fan.
The condenser 2 is connected to a refrigerant liquefier 100 via a connection pipe 29, and the refrigerant liquefier 100 is connected to a decompression device 3 via a connection pipe 30. The refrigerant liquefier 100 is connected to the liquid line. The evaporator 4 is connected to the pressure reducer 3 via a connection pipe 31.
The evaporator 4 includes a plurality of (5 in the present embodiment) straight tubes 41 to 45 and a plurality of fins 47, 47 \8230. The pipes 41 to 45 are serpentine pipes including an inlet side pipe 41, an outlet side pipe 45, and a plurality of pipes 42 to 44 in the central portion. The inlet-side pipe 41 is connected to the connection pipe 31. The outlet of tube 41 is connected to the inlet of tube 42 via vent hole 61, and the outlet of tube 42 is connected to the inlet of tube 43 via vent hole 62. The outlet of the tube 43 is connected to the inlet of the tube 44 via a vent 63, and the outlet of the tube 44 is connected to the inlet of the tube 45 via a vent 64. The outlet of the pipe 45 is connected to the compressor 1 via the connection pipe 32.
Numeral 83 denotes a fan for an evaporator.
Fig. 2A and 2B show the refrigerant liquefier 100.
The refrigerant liquefier 100 includes a cylindrical pipe body 110, and connectors 101 and 102 are provided at both ends of the pipe body 110. The coupling 101 is coupled to the connection pipe 29, and the coupling 102 is coupled to the connection pipe 30.
The refrigerant liquefying element 105 is fitted to the inner periphery of the pipe body 110.
The refrigerant liquefying element 105 includes a hollow element body 172, and a spiral groove portion 173 for causing the refrigerant to flow in a swirling manner is provided in an outer peripheral portion of the element body 172. The spiral groove portions 173 are provided at substantially equal pitches P throughout substantially the entire region of the element main body 172 from upstream toward downstream. As shown in fig. 2B, a through hole 179 is formed in a portion of the downstream portion of the element main body 172 where the spiral groove 173 is not formed.
The refrigerant liquefying element 105 is disposed such that the pad portion 174 of the element main body 172 is in close contact with the inner peripheral surface of the pipe 110. If the refrigerant liquefying device 105 is disposed on the inner circumferential surface of the pipe body 110, the spiral groove 173 is formed between the pad portion 174 and the pad portion 174. The spiral groove 173 has a rectangular cross section.
A decompression and expansion mechanism 175 for decompressing and expanding the refrigerant and flowing the refrigerant is provided on the inner peripheral portion of the element main body 172. The decompression and expansion mechanism 175 is a hollow through hole provided in the element main body 172. The refrigerant flows in the direction of arrow R. The hollow through hole includes an orifice 176 and an expansion hole 177 having a larger inner diameter than the orifice 176. The hollow through hole includes an inlet hole 178 having a larger inner diameter than the throttle hole 176.
Next, the operation and effect of the present embodiment will be described.
The refrigerant flows in the direction indicated by the arrow R by driving the compressor 1, and the high-temperature and high-pressure gas refrigerant flows into the fin-tube condenser 2.
The gaseous refrigerant is condensed and liquefied by the condenser 2. The liquid refrigerant flowing out of the condenser 2 flows into the refrigerant liquefier 100.
According to the present embodiment, the refrigerant liquefying element 171 is provided in the pipe body 110. Since the refrigerant liquefying element 171 includes the spiral groove portion 173 for causing the refrigerant to flow in a swirling manner in the outer peripheral portion of the element main body 172, the flow in contact with the inner wall surface of the pipe body 110 becomes a swirling flow. The swirling flow enters the inner peripheral portion of the element main body 172 through the through hole 179, merges with the refrigerant decompressed by the decompression and expansion mechanism 175, and then flows out of the refrigerant liquefier 100. Since the swirling flow flows in contact with the inner wall surface of the pipe body 110, the amount of heat radiated through the inner wall surface of the pipe body 110 increases.
In the refrigerant liquefying element 171, the flow of the refrigerant in the spiral groove portion 173 generates a spiral flow (primary flow) from the upstream to the downstream in the pipe body 110. Further, the refrigerant flow in the spiral groove portion 173 generates a pair of rotational flows (secondary flows) that rotate in opposite directions from the center to each other in the rectangular cross section of the spiral groove portion 173.
Accordingly, the heat radiation amount of the heat radiation fin 27 by the inner wall surface of the pipe body 110 is increased to lower the temperature of the refrigerant, thereby improving the supercooling degree of the refrigerant.
A decompression and expansion mechanism 175 for decompressing and expanding the refrigerant and flowing the refrigerant is provided on the inner peripheral portion of the element main body 172. Therefore, the refrigerant is decompressed to have a reduced temperature, and the element main body 172 is cooled to flow through the element main body 172, thereby improving the degree of supercooling of the refrigerant.
The decompression expansion mechanism 175 is a hollow through hole provided in the element body 172 of the refrigerant liquefying element 171, and the hollow through hole includes an orifice 176 and an expansion hole 177 having an inner diameter larger than that of the orifice 176, so that the refrigerant liquefying element 171 can be configured with a simple configuration.
The refrigerant is narrowed by the orifice 176, and then expanded by the expansion hole 177, thereby being decompressed and expanded. The hollow through hole of the decompression and expansion mechanism 175 includes an inlet hole 178 having an inner diameter larger than that of the orifice 176 at the upstream side.
By appropriately setting the hole diameter of the inlet hole 178 and adjusting the ratio of the size of the inlet hole 178 to the size of the groove width of the spiral groove portion 173, the amount of refrigerant flowing through the spiral groove portion 173 on the outer peripheral side of the element body 172 and the amount of refrigerant flowing through the decompression and expansion mechanism 175 on the inner peripheral side of the element body 172 can be adjusted, and the degree of supercooling can be changed.
According to the present embodiment, the amount of refrigerant flowing through the spiral groove portion 173 on the outer peripheral side of the element main body 172 and the amount of refrigerant flowing through the decompression and expansion mechanism 175 on the inner peripheral side of the element main body 172 are set to a ratio of 2 to 1. Further, D1 is the inner diameter of the orifice 176, D2 is the inner diameter of the expansion hole 177, and D3 is the inner diameter of the inlet hole 178.
The refrigerant passing through the refrigerant liquefier 100 is decompressed by the decompressor 3 and then flows into the fin-tube evaporator 4. The liquid refrigerant flowing into the evaporator 4 is gasified by the evaporator 4, and the gas refrigerant is sucked into the suction port of the compressor 1.
As shown in fig. 2B, in the embodiment, a through hole 179 is formed in the element main body 172. The through hole 179 is a hole for merging the refrigerant flowing in the spiral shape through the outer peripheral portion of the element main body 172 and the refrigerant decompressed by passing through the decompression and expansion mechanism 175. However, the present invention is not limited to this configuration. For example, as shown in fig. 3, the element main body 172 may be formed to have a short length, and a merging portion 180 may be provided on the downstream side of the element main body 172 to merge the refrigerant that flows in a spiral and the refrigerant that is depressurized.
Fig. 4 shows another embodiment. In fig. 4, the same components as those in fig. 1 are denoted by the same reference numerals, and the description thereof will be omitted.
The condenser 2 includes a plurality of (5 in the present embodiment) straight tubes 21 to 25 and a plurality of fins 27, 27 \8230. The pipes 21 to 25 are serpentine pipes including an inlet-side pipe 21, an outlet-side pipe 25, and central pipes 22 to 24. The inlet-side pipe 21 is connected to the connection pipe 28. The outlet of the pipe 21 is connected to the inlet of the pipe 22 via a vent hole 51, and the outlet of the pipe 22 is connected to the inlet of the pipe 23 via a vent hole 52. The outlet of the tube 23 is connected to the inlet of the tube 24 via a vent 53, and the outlet of the tube 24 is connected to the inlet of the tube 25 via a vent 54. The outlet of the pipe 25 is connected to a connection pipe 29.
The pressure reducing device 3 is connected to the connection pipe 29, and the finned-tube evaporator 4 is connected to the pressure reducing device 3.
The structure of the condenser 2 according to another embodiment will be described.
As shown in fig. 5, a refrigerant liquefying element (subcooler) 71 is disposed in the pipe 25 on the outlet side of the condenser 2. The refrigerant liquefying element 71 is disposed on the inlet side of the outlet side pipe 25 formed linearly. The length of the refrigerant liquefying element 71 is arbitrary, but is preferably not more than half of the length of the pipe 25 in consideration of the flow path resistance in the pipe.
The refrigerant liquefying element 71 includes a hollow element body 72, and a spiral groove portion 73 for causing the refrigerant to flow in a swirling manner is provided on an outer peripheral portion of the element body 72. The refrigerant liquefying element 71 is disposed such that the land portion 74 of the element main body 72 is in close contact with the inner peripheral surface of the pipe 25. If the refrigerant liquefying element 71 is disposed on the inner peripheral surface of the pipe 25, a spiral groove portion 73 is formed between the land portion 74 and the land portion 74 of the element main body 72, and the cross section of the spiral groove portion 73 is rectangular. A decompression and expansion mechanism 75 for decompressing and expanding the refrigerant to flow is provided in an inner peripheral portion of the element main body 72. The decompression and expansion mechanism 75 is a hollow through hole provided in the element body 72 of the refrigerant liquefying element 71. The refrigerant flows in the direction indicated by the arrow R. The hollow through hole includes an orifice 76 and an expansion hole 77 having a larger inner diameter than the orifice 76. The hollow through hole has an inlet hole 78 having a larger inner diameter than the orifice 76.
Next, the operation and effect of the present embodiment will be described.
The refrigerant flows in the direction indicated by the arrow R by driving the compressor 1, and the high-temperature and high-pressure gas refrigerant flows into the fin-tube condenser 2.
The gaseous refrigerant is condensed and liquefied by the condenser 2. The liquid refrigerant flowing out of the condenser 2 flows into the decompressor 3, is decompressed by the decompressor 3, and then flows into the fin-tube evaporator 4. The liquid refrigerant flowing into the evaporator 4 is gasified by the evaporator 4, and the gas refrigerant is sucked into the suction port of the compressor 1.
In the present embodiment, the refrigerant liquefying element 71 is provided in the outlet-side pipe 25, and the refrigerant liquefying element 71 includes the spiral groove portion 73 for causing the refrigerant to swirl on the outer peripheral portion of the element body 72, so that the flow in the outlet-side pipe 25 becomes a swirling flow, and the amount of heat radiation from the heat radiating fins 27 through the inner wall surface of the pipe 25 increases.
In the refrigerant liquefying element 71, the flow of the refrigerant in the pipe 25 generates a spiral flow (primary flow) from the upstream to the downstream in the pipe 25, and a pair of rotational flows (secondary flows) rotating in opposite directions from the center to each other along the sides in the rectangular cross section of the spiral groove portion 73, whereby the heat radiation amount of the heat radiation fins 27 through the inner wall surface of the pipe 25 increases, the temperature of the refrigerant decreases, and the degree of supercooling of the refrigerant improves.
Further, a decompression and expansion mechanism 75 for decompressing and expanding the refrigerant to flow is provided in the inner peripheral portion of the element main body 72. Therefore, the refrigerant is decompressed by the decompression expansion mechanism 75 to be reduced in temperature, and the element main body 72 is cooled, thereby improving the degree of supercooling of the refrigerant.
The hollow through hole of the decompression and expansion mechanism 75 includes an inlet hole 78 having an inner diameter larger than that of the orifice 76 at the upstream side. By appropriately setting the hole diameter of the inlet hole 78 and adjusting the ratio of the size of the inlet hole 78 to the groove width of the spiral groove portion 73, the amount of refrigerant flowing through the spiral groove portion 73 on the outer peripheral side of the element body 72 and the amount of refrigerant flowing through the decompression expansion mechanism 75 on the inner peripheral side of the element body 72 can be adjusted. By this adjustment, the supercooling degree can be changed. In the present embodiment, the amount of refrigerant flowing through the spiral groove portion 73 on the outer peripheral side of the element body 72 and the amount of refrigerant flowing through the decompression and expansion mechanism 75 on the inner peripheral side of the element body 72 are set to a ratio of 2 to 1. D1 is the inner diameter of the orifice hole 76, D2 is the inner diameter of the expansion hole 77, and D3 is the inner diameter of the inlet hole 78.
The present invention has been described above based on one embodiment, but the present invention is not limited to these embodiments.
In the above embodiment, the element body 72 in the tube 25 is disposed so that the inlet hole 78 faces upstream in fig. 5, but may be disposed so that the inlet hole 78 faces downstream and is reversely assembled. In this case, the refrigerant flows in the direction opposite to the arrow R. The refrigerant entering the expansion hole 77 is decompressed by the orifice 76 and then expanded by the inlet hole 78.
The flow in the pipe 25 becomes a swirling flow in the spiral groove portion 73, and therefore the amount of heat radiation passing through the inner wall surface of the pipe 25 increases. Further, since the refrigerant entering the expansion hole 77 is decompressed by the orifice 76, and then expands and flows through the inlet hole 78, the refrigerant is decompressed and the temperature thereof is lowered, thereby cooling the element body 72 and improving the degree of supercooling of the refrigerant.
[ description of symbols ]
1. Compressor with a compressor housing having a plurality of compressor blades
2. Condenser
3. Pressure reducing device
4. Evaporator with a heat exchanger
21-25 condenser tube
41. Tube on inlet side of evaporator
42-44 center pipe
45. Pipe on outlet side
71. 105 refrigerant liquefying element
72. 172 element body
73. 173 helical groove portion
75. 175 decompression expansion mechanism
76. 176 orifice
77. 177 expansion hole
78. 178 inlet aperture
81. Fan for condenser
83. Fan for evaporator
100. Refrigerant liquefier
110. Pipe body
Claims (5)
1. A refrigerant liquefying element, comprising:
a pipe body;
an element body fitted to the inner periphery of the pipe body;
a spiral groove portion provided on an outer peripheral portion of the element main body and configured to cause a refrigerant to flow in a swirling manner;
a decompression expansion mechanism; a decompression expansion mechanism which is provided in an inner peripheral portion of the element body and which decompresses and expands a refrigerant to flow, the decompression expansion mechanism being a hollow through hole provided in the element body, the hollow through hole having an orifice and an expansion hole having an inner diameter larger than that of the orifice;
after entering the pipe body, the refrigerant is respectively shunted by the spiral groove part and the decompression expansion mechanism and then is converged in the pipe body;
the hollow through hole has an inlet hole having a larger inner diameter than the orifice hole.
2. A refrigerant liquefier comprising a pipe body and a refrigerant liquefying element inserted into the pipe body, wherein the refrigerant liquefying element comprises: a pipe body;
an element body fitted to the inner periphery of the pipe body;
a spiral groove portion provided on an outer peripheral portion of the element body and configured to cause a refrigerant to flow in a swirling manner;
a decompression expansion mechanism; a decompression and expansion mechanism which is provided in an inner peripheral portion of the element main body and which decompresses and expands a refrigerant to flow, the decompression and expansion mechanism being a hollow through hole provided in the element main body, the hollow through hole having an orifice and an expansion hole having an inner diameter larger than that of the orifice;
after entering the pipe body, the refrigerant is respectively shunted by the spiral groove part and the decompression expansion mechanism and then is converged in the pipe body;
the hollow through hole has an inlet hole having a larger inner diameter than the throttle hole.
3. A heat exchanger is provided with fins, a plurality of tubes, and a refrigerant liquefying element inserted into the tubes on the outlet side, and the refrigerant liquefying element is provided with: a tube body;
an element body fitted to the inner periphery of the pipe body;
a spiral groove portion provided on an outer peripheral portion of the element main body and configured to cause a refrigerant to flow in a swirling manner;
a decompression expansion mechanism; a decompression expansion mechanism which is provided in an inner peripheral portion of the element body and which decompresses and expands a refrigerant to flow, the decompression expansion mechanism being a hollow through hole provided in the element body, the hollow through hole having an orifice and an expansion hole having an inner diameter larger than that of the orifice;
after entering the pipe body, the refrigerant is respectively shunted by the spiral groove part and the decompression expansion mechanism and then is converged in the pipe body;
the hollow through hole has an inlet hole having a larger inner diameter than the throttle hole.
4. A refrigeration cycle comprising a compressor, a condenser, a pressure reducing device, and an evaporator, wherein the condenser comprises a refrigerant liquefying element inserted into a pipe on an outlet side, and the refrigerant liquefying element comprises: a pipe body;
an element main body which is embedded in the inner periphery of the tube body;
a spiral groove portion provided on an outer peripheral portion of the element main body and configured to cause a refrigerant to flow in a swirling manner;
a decompression expansion mechanism; a decompression and expansion mechanism which is provided in an inner peripheral portion of the element main body and which decompresses and expands a refrigerant to flow, the decompression and expansion mechanism being a hollow through hole provided in the element main body, the hollow through hole having an orifice and an expansion hole having an inner diameter larger than that of the orifice;
after entering the pipe body, the refrigerant is respectively shunted by the spiral groove part and the decompression expansion mechanism and then is converged in the pipe body;
the hollow through hole has an inlet hole having a larger inner diameter than the orifice hole.
5. A refrigeration cycle comprising a compressor, a condenser, a pressure reducing device, and an evaporator, wherein the refrigeration cycle comprises a pipe connected between the condenser and the pressure reducing device, and a refrigerant liquefying element inserted into the pipe, and the refrigerant liquefying element comprises: a tube body;
an element main body which is embedded in the inner periphery of the tube body;
a spiral groove portion provided on an outer peripheral portion of the element main body and configured to cause a refrigerant to flow in a swirling manner;
a decompression expansion mechanism; a decompression and expansion mechanism which is provided in an inner peripheral portion of the element main body and which decompresses and expands a refrigerant to flow, the decompression and expansion mechanism being a hollow through hole provided in the element main body, the hollow through hole having an orifice and an expansion hole having an inner diameter larger than that of the orifice;
after entering the pipe body, the refrigerant is respectively shunted by the spiral groove part and the decompression expansion mechanism and then is converged in the pipe body;
the hollow through hole has an inlet hole having a larger inner diameter than the throttle hole.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/003539 WO2020152873A1 (en) | 2019-01-25 | 2019-01-25 | Refrigerant liquefying element, refrigerant liquefier using same, heat exchanger, and refrigeration cycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112136011A CN112136011A (en) | 2020-12-25 |
| CN112136011B true CN112136011B (en) | 2022-11-01 |
Family
ID=71736302
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980030185.1A Active CN112136011B (en) | 2019-01-25 | 2019-01-25 | Refrigerant liquefying element, refrigerant liquefier using same, heat exchanger and refrigeration cycle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6907427B2 (en) |
| CN (1) | CN112136011B (en) |
| WO (1) | WO2020152873A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR959329A (en) * | 1950-03-29 | |||
| CN102080908A (en) * | 2009-11-30 | 2011-06-01 | 现代自动车株式会社 | Liquid supercooling system |
| CN103180675A (en) * | 2010-10-22 | 2013-06-26 | 法雷奥日本株式会社 | Refrigeration cycle and condenser with supercooling unit |
| CN108779945A (en) * | 2016-10-18 | 2018-11-09 | 柳州安美科技有限责任公司 | Radiator, condenser unit, refrigeration cycle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019337A (en) * | 1974-10-23 | 1977-04-26 | Zearfoss Jr Elmer W | Refrigeration apparatus and method |
| JPS6058381B2 (en) * | 1981-08-12 | 1985-12-19 | 三菱電機株式会社 | flow control device |
| JPS6058382B2 (en) * | 1981-08-12 | 1985-12-19 | 三菱電機株式会社 | Refrigeration equipment |
| JPS58148367A (en) * | 1982-02-25 | 1983-09-03 | 三菱電機株式会社 | Heat pump type air conditioner |
| JPS60248971A (en) * | 1984-05-23 | 1985-12-09 | 三菱電機株式会社 | Heat pump type air conditioner |
| WO2016060985A1 (en) * | 2014-10-14 | 2016-04-21 | Articmaster Inc. | Efficiency enhancing apparatus and methods for a heat exchange system |
-
2019
- 2019-01-25 CN CN201980030185.1A patent/CN112136011B/en active Active
- 2019-01-25 WO PCT/JP2019/003539 patent/WO2020152873A1/en active Application Filing
- 2019-01-25 JP JP2020537795A patent/JP6907427B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR959329A (en) * | 1950-03-29 | |||
| CN102080908A (en) * | 2009-11-30 | 2011-06-01 | 现代自动车株式会社 | Liquid supercooling system |
| CN103180675A (en) * | 2010-10-22 | 2013-06-26 | 法雷奥日本株式会社 | Refrigeration cycle and condenser with supercooling unit |
| CN108779945A (en) * | 2016-10-18 | 2018-11-09 | 柳州安美科技有限责任公司 | Radiator, condenser unit, refrigeration cycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2020152873A1 (en) | 2021-04-08 |
| CN112136011A (en) | 2020-12-25 |
| JP6907427B2 (en) | 2021-07-21 |
| WO2020152873A1 (en) | 2020-07-30 |
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