CN200940969Y - Refrigeration unit structure - Google Patents

Refrigeration unit structure Download PDF

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Publication number
CN200940969Y
CN200940969Y CN 200620123451 CN200620123451U CN200940969Y CN 200940969 Y CN200940969 Y CN 200940969Y CN 200620123451 CN200620123451 CN 200620123451 CN 200620123451 U CN200620123451 U CN 200620123451U CN 200940969 Y CN200940969 Y CN 200940969Y
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CN
China
Prior art keywords
pipeline
pressure stage
stage compressor
heat exchanger
outlet
Prior art date
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Expired - Lifetime
Application number
CN 200620123451
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Chinese (zh)
Inventor
苑增之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING JINGKELUN REFRIGERATION EQUIPMENT Co Ltd
Original Assignee
BEIJING JINGKELUN REFRIGERATION EQUIPMENT Co Ltd
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Priority to CN 200620123451 priority Critical patent/CN200940969Y/en
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Publication of CN200940969Y publication Critical patent/CN200940969Y/en
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Abstract

This utility model relates to a refrigerating unit structure, mainly consisting of a condenser, a thermosyphon tank, a regulating valve, a plate-type heat exchanger, a throttle valve, an evaporator, a low pressure level compressor, a thermodynamic expansive valve, and a high pressure level compressor. This utility model is a refrigerating unit structure which not only can reduce heat transfer temperature difference for getting a higher liquid sub cooling and increase unit refrigerating amount of circulation, but also can significantly reduce outline dimension of the thermosyphon tank with a compact structure and material saving functionality.

Description

A kind of refrigeration unit structure
Technical field:
The utility model relates to a kind of refrigeration unit structure.
Background technology:
In the circulation of two stages of compression one-level throttling refrigeration, refrigerant liquid directly is throttled to evaporating pressure from condensing pressure, and it is cold that liquid often utilizes the evaporation of refrigerant liquid in intercooler under the intermediate pressure before throttling, to improve the specific refrigerating effect of circulation.Common way is that the low-pressure stage exhaust is directly entered intercooler, and the cold-producing medium of evaporation should cool off the low-pressure stage exhaust, carries out cold to highly pressurised liquid again.When adopting coil exchanger, the heat transfer temperature difference that needs is bigger, and obtainable degree of liquid subcooling is less.
Goal of the invention:
The purpose of this utility model is to provide a kind of heat transfer temperature difference that both can reduce to obtain bigger degree of liquid subcooling, improves the specific refrigerating effect of circulation, can significantly reduce the appearance and size of thermal siphon jar again, compact conformation, the refrigeration unit structure of saving material.
Summary of the invention:
For achieving the above object, the utility model is taked following design: this refrigeration unit structure, mainly by condenser, the thermal siphon jar, control valve, plate type heat exchanger, choke valve, evaporimeter, the low-pressure stage compressor, heating power expansion valve, the hiigh pressure stage compressor is formed, the inlet that the exhaust outlet of described hiigh pressure stage compressor is connected described condenser with pipeline, the end and the cold side refrigerant liquid inlet of described plate type heat exchanger and the end of described heating power expansion valve that the outlet of described condenser are connected described control valve with pipeline respectively, the refrigerant inlet that the other end of described control valve is connected described thermal siphon jar with pipeline, the air entry and the exhaust outlet of described low-pressure stage compressor and the other end of described heating power expansion valve that the refrigerant gas outlet of described thermal siphon jar are connected described hiigh pressure stage compressor with pipeline respectively, the refrigerant gas inlet of described thermal siphon jar is connected the evaporation side refrigerant gas outlet of described plate type heat exchanger with pipeline, the evaporation side refrigerant liquid inlet that the refrigerant liquid outlet of described thermal siphon jar is connected described plate type heat exchanger with pipeline, an end that the cold side cold-producing medium subcooled liquid outlet of described plate type heat exchanger is connected described choke valve with pipeline, the other end of described choke valve is connected the inlet of described evaporimeter with pipeline, the outlet of described evaporimeter is connected the air entry of described low-pressure stage compressor with pipeline.
The refrigerant superheat steam of discharging from the hiigh pressure stage compressor is the high pressure saturated liquid through condenser condenses, and wherein sub-fraction is throttled to intermediate pressure through choke valve, enters the thermal siphon jar.Liquid in the thermal siphon jar relies on gravity force liquid-supply to enter board-like intercooler cooling another part highly pressurised liquid; Also have another fraction to be throttled to intermediate pressure simultaneously in the high pressure saturated liquid, enter the hiigh pressure stage aspirating air pipe by heating power expansion valve.The back-steam of finally, the exhaust of low-pressure stage compressor, thermal siphon jar, the steam after the expansion valve throttling and evaporation are sucked by the hiigh pressure stage compressor together.
Because the utility model adopts above technical scheme, adopt gravity force liquid-supply thermal siphon formula intercooler between the two-stage, add the twin-stage compression refrigeration of heating power expansion valve throttling cooling low-pressure stage exhaust, can obtain bigger degree of liquid subcooling, improve the specific refrigerating effect and the refrigerating efficiency of kind of refrigeration cycle, reduced device fabrication cost and floor space simultaneously.
Description of drawings:
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation
The specific embodiment:
As shown in Figure 1, this refrigeration unit structure of the utility model, mainly by condenser 1, thermal siphon jar 2, control valve 3, plate type heat exchanger 4, choke valve 5, evaporimeter 6, low-pressure stage compressor 7, heating power expansion valve 8, hiigh pressure stage compressor 9 is formed, the inlet 10 that the exhaust outlet 25 usefulness pipelines of described hiigh pressure stage compressor 9 is connected described condenser 1, the end and the cold side refrigerant liquid inlet 16 of described plate type heat exchanger 4 and the end of described heating power expansion valve 8 that the outlet 11 usefulness pipelines of described condenser 1 are connected described control valve 3 respectively, the refrigerant inlet 12 that the other end of described control valve 3 is connected described thermal siphon jar 2 with pipeline, the air entry 24 and the exhaust outlet 23 of described low-pressure stage compressor 7 and the other end of described heating power expansion valve 8 that the refrigerant gas outlet 13 usefulness pipelines of described thermal siphon jar 2 are connected described hiigh pressure stage compressor 9 respectively, the refrigerant gas inlet 14 usefulness pipelines of described thermal siphon jar 2 are connected the evaporation side refrigerant gas outlet 18 of described plate type heat exchanger 4, the evaporation side refrigerant liquid inlet 17 that the refrigerant liquid outlet 15 usefulness pipelines of described thermal siphon jar 2 is connected described plate type heat exchanger 4, an end that the cold side cold-producing medium subcooled liquid outlet 19 usefulness pipelines of described plate type heat exchanger 4 is connected described choke valve 5, the other end of described choke valve 5 is connected the inlet 20 of described evaporimeter 6 with pipeline, the outlet 21 usefulness pipelines of described evaporimeter 6 are connected the air entry 22 of described low-pressure stage compressor 7.
The refrigerant superheat steam of discharging from hiigh pressure stage compressor 9 is condensed into the high pressure saturated liquid through condenser 1, and wherein sub-fraction is throttled to intermediate pressure through choke valve 5, enters thermal siphon jar 2.Liquid in the thermal siphon jar relies on gravity force liquid-supply to enter board-like intercooler 4 cooling another part highly pressurised liquids; Also have another fraction to be throttled to intermediate pressure simultaneously in the high pressure saturated liquid, enter the hiigh pressure stage aspirating air pipe by heating power expansion valve 8.Steam after the back-steam of finally, the exhaust of low-pressure stage compressor 7, thermal siphon jar 2, expansion valve 8 throttling and evaporation is sucked by hiigh pressure stage compressor 9 together.
Because the utility model adopts above technical scheme, both can reduce heat transfer temperature difference and obtain bigger degree of liquid subcooling, improve the specific refrigerating effect of circulation, can significantly reduce the appearance and size of thermal siphon jar again, compact conformation, saving material.
Below only be an embodiment of the present utility model, any based on equivalents of the present utility model all within protection domain of the present utility model.

Claims (1)

1, a kind of refrigeration unit structure, mainly by condenser, the thermal siphon jar, control valve, plate type heat exchanger, choke valve, evaporimeter, the low-pressure stage compressor, heating power expansion valve, the hiigh pressure stage compressor is formed, it is characterized in that: the inlet that the exhaust outlet of described hiigh pressure stage compressor is connected described condenser with pipeline, the end and the cold side refrigerant liquid inlet of described plate type heat exchanger and the end of described heating power expansion valve that the outlet of described condenser are connected described control valve with pipeline respectively, the refrigerant inlet that the other end of described control valve is connected described thermal siphon jar with pipeline, the air entry and the exhaust outlet of described low-pressure stage compressor and the other end of described heating power expansion valve that the refrigerant gas outlet of described thermal siphon jar are connected described hiigh pressure stage compressor with pipeline respectively, the refrigerant gas inlet of described thermal siphon jar is connected the evaporation side refrigerant gas outlet of described plate type heat exchanger with pipeline, the evaporation side refrigerant liquid inlet that the refrigerant liquid outlet of described thermal siphon jar is connected described plate type heat exchanger with pipeline, an end that the cold side cold-producing medium subcooled liquid outlet of described plate type heat exchanger is connected described choke valve with pipeline, the other end of described choke valve is connected the inlet of described evaporimeter with pipeline, the outlet of described evaporimeter is connected the air entry of described low-pressure stage compressor with pipeline.
CN 200620123451 2006-08-07 2006-08-07 Refrigeration unit structure Expired - Lifetime CN200940969Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620123451 CN200940969Y (en) 2006-08-07 2006-08-07 Refrigeration unit structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620123451 CN200940969Y (en) 2006-08-07 2006-08-07 Refrigeration unit structure

Publications (1)

Publication Number Publication Date
CN200940969Y true CN200940969Y (en) 2007-08-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620123451 Expired - Lifetime CN200940969Y (en) 2006-08-07 2006-08-07 Refrigeration unit structure

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CN (1) CN200940969Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697627A (en) * 2013-12-24 2014-04-02 上海理工大学 Double-temperature condensing two-stage compressing heat pump system
CN105546818A (en) * 2015-12-25 2016-05-04 浙江工业大学 Efficient large-temperature-rise single-stage-throttling intercooling heat pump water heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697627A (en) * 2013-12-24 2014-04-02 上海理工大学 Double-temperature condensing two-stage compressing heat pump system
CN103697627B (en) * 2013-12-24 2015-12-30 上海理工大学 Double-temperature refrigerator coagulates two stages of compression heat pump
CN105546818A (en) * 2015-12-25 2016-05-04 浙江工业大学 Efficient large-temperature-rise single-stage-throttling intercooling heat pump water heater
CN105546818B (en) * 2015-12-25 2018-03-16 浙江工业大学 A kind of efficient big temperature rise single-stage throttling cooling during rolling heat pump water-heating machine

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Granted publication date: 20070829

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