CN206847149U - One kind decompression removes defrosting system - Google Patents

One kind decompression removes defrosting system Download PDF

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Publication number
CN206847149U
CN206847149U CN201720663640.XU CN201720663640U CN206847149U CN 206847149 U CN206847149 U CN 206847149U CN 201720663640 U CN201720663640 U CN 201720663640U CN 206847149 U CN206847149 U CN 206847149U
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CN
China
Prior art keywords
double loop
fluid reservoir
condenser
defrosting system
check valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720663640.XU
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Chinese (zh)
Inventor
庄迪君
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.)
NANJING PINGRI REFRIGERATION TECHNOLOGY Co Ltd
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NANJING PINGRI REFRIGERATION TECHNOLOGY Co Ltd
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Filing date
Publication date
Application filed by NANJING PINGRI REFRIGERATION TECHNOLOGY Co Ltd filed Critical NANJING PINGRI REFRIGERATION TECHNOLOGY Co Ltd
Priority to CN201720663640.XU priority Critical patent/CN206847149U/en
Application granted granted Critical
Publication of CN206847149U publication Critical patent/CN206847149U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses one kind decompression to remove defrosting system, it includes compressor, condenser and evaporator, the condenser connects the first double loop, first double loop connects the evaporator, the first expansion valve is wherein provided with primary Ioops in first double loop, fluid reservoir and the first check valve are provided with first double loop in another loop, the fluid reservoir connects first check valve.Fluid reservoir is installed in indoor set.The utility model is as a result of double loop and check valve, and during heating, check valve conducting, fluid reservoir is inside and outside almost without pressure difference, is advantageous to store liquid coolant, the storage effect of fluid reservoir is good;During defrosting, check valve cut-off, gas-liquid two-phase refrigerant of the liquid coolant by expansion valve reducing pressure by regulating flow into low-temp low-pressure, pressure difference larger inside and outside fluid reservoir is formed, refrigerant can be evaporated by being entered in quick ramming system in evaporator in fluid reservoir, and defrosting effect is preferable.

Description

One kind decompression removes defrosting system
Technical field
The utility model belongs to refrigeration and the technical field of heating, and more particularly to a kind of decompression removes defrosting system.
Background technology
No matter in refrigeration or heating mode, in the course of the work, the interior outside of traditional fluid reservoir is high pressure, so In heating, it is good fluid reservoir;But to be defrosted in heating operations, when being switched to defrosting mode, because It is minimum for fluid reservoir inside and outside differential pressure, so the refrigerant of fluid reservoir is hardly entered in system, cause to lack the state of refrigerant operation so that Defrosting effect is slow.
If fluid reservoir is single tube disengaging the characteristics of compensator, no matter therefore in refrigeration or system using compensator Heat pattern, it is all a jar with pressure.The advantages of compensator be commutation defrosting mode because the liquid in compensator In high pressure, and be low pressure on the outside of jar, so the pressure difference inside and outside jar will be rapidly in tank in refrigerant ramming system, acceleration Defrosting speed.But in heating mode, due to pressure in compensator be present, the speed that unnecessary refrigerant flows into compensator is slow, So liquid storage less effective, it is impossible to adjust coolant quantity well.
Utility model content
For the deficiency of prior art, the utility model provides a kind of decompression and removes defrosting system, and it is in the case where ensureing heating mode Under the premise of fluid reservoir liquid storage effect is preferable, it is preferable to be converted into defrosting effect during refrigeration mode defrosting.
To achieve the above object, the technical solution adopted in the utility model removes defrosting system for a kind of decompression, and it includes compression Machine, condenser and evaporator, the condenser connect the first double loop, and first double loop connects the evaporator, described Wherein it is provided with the first expansion valve in first double loop on primary Ioops, liquid storage is provided with another loop in first double loop Tank and the first check valve, the fluid reservoir connect first check valve.
Further, above-mentioned fluid reservoir is installed in indoor set.
Further, above-mentioned condenser connects first double loop by threeway.
Above-mentioned compressor connects condenser by four-way valve.
Above-mentioned condenser connects first double loop by the second double loop, wherein primary Ioops in second double loop On be provided with the second expansion valve, be provided with the second check valve in another loop in second double loop.
Above-mentioned condenser connects second double loop by distribution head, threeway, and second double loop is led to by three Connect first double loop.
Above-mentioned compressor passes sequentially through gas-liquid separator, four-way valve, condenser, distribution head and described second pair is connected with threeway Loop.
Above-mentioned first expansion valve and second expansion valve connect the first device for drying and filtering and the second device for drying and filtering respectively.
Above-mentioned compressor connects the four-way valve by gas-liquid separator, and the evaporator connects the four-way valve.
Above-mentioned evaporator passes sequentially through distribution head, threeway connects first double loop.
Compared with prior art, the utility model has the advantage that:
1, using such scheme, condenser connects the first double loop, the first double loop connection evaporator, in the first double loop Wherein it is provided with the first expansion valve on primary Ioops, fluid reservoir and the first check valve is provided with another loop in the first double loop, Fluid reservoir connects the first check valve, and as a result of double loop and check valve, during heating, check valve conducting is several inside and outside fluid reservoir Without pressure difference, be advantageous to store liquid coolant, the storage effect of fluid reservoir is good.
2, during defrosting, check valve cut-off, liquid coolant is cold by the gas-liquid two-phase of expansion valve reducing pressure by regulating flow into low-temp low-pressure Matchmaker, pressure difference larger inside and outside fluid reservoir being formed, refrigerant can be evaporated by being entered in quick ramming system in evaporator in fluid reservoir, Defrosting effect is preferable.
Brief description of the drawings
Fig. 1 is the utility model defrosting system flow schematic diagram;
Fig. 2 is the utility model heating schematic flow sheet.
Embodiment
In conjunction with accompanying drawing, the utility model is described in more detail.
As shown in Figure 1 and Figure 2, the utility model proposes decompression remove defrosting system, it include compressor 1, condenser 2 and steam Device 3 is sent out, condenser 2 connects the first double loop 4, and condenser 3 connects the first double loop 4 by the second double loop 5, and condenser 2 is logical Cross threeway 9 and connect the first double loop 4, evaporator 3 passes sequentially through distribution head 10, threeway 11 connects the first double loop 4.
Wherein it is provided with the first expansion valve 6 in first double loop 4 on primary Ioops, is set in the first double loop 4 in another loop The check valve 8 of fluid reservoir 7 and first is equipped with, fluid reservoir 7 connects the first check valve 8, and fluid reservoir 7 is installed in indoor set.
Wherein it is provided with the second expansion valve 12 in second double loop 5 on primary Ioops, is set in the second double loop 5 in another loop The second check valve 13 is equipped with, compressor 1 passes sequentially through four-way valve 14, condenser 2, distribution head 15 and threeway 16 and connects the second double back Road 5, second servo loop 5 connect the first double loop 4 by threeway 20 and threeway 9;Compressor 1 connects four-way by gas-liquid separator 17 Valve 14;Evaporator 3 connects four-way valve 14.
First expansion valve 6 and the second expansion valve 12 connect the first device for drying and filtering 18 and the second device for drying and filtering 19 respectively.
When changing defrosting mode refrigeration, the gas coolant of HTHP out passes through four-way from the exhaust outlet of compressor 1 Valve 14 enters in condenser 2 liquid for being condensed into HTHP, and liquid out is entered by distribution head 15, the second check valve 13 Enter the first device for drying and filtering 18 to indoor set.The liquid coolant come out from the first device for drying and filtering 18 passes through the first expansion valve 6 Gas-liquid two-phase refrigerant of the reducing pressure by regulating flow into low-temp low-pressure.So fluid reservoir inside and outside differential pressure is very big, and refrigerant can be quick in fluid reservoir Entered in evaporator 3 and evaporated by the distribution head of indoor set in ramming system, then entered by the four-way valve 14 of outdoor unit To gas-liquid separator 17, the gaseous coolant come out from gas-liquid separator 17 enters in compressor 1 gas for being compressed into HTHP Then state refrigerant out enters four-way valve 14 from the exhaust outlet of compressor, then constantly repeat said process.
For straight swollen machine in heating mode, the gas coolant of HTHP out passes through four-way valve from the exhaust outlet of compressor 1 14 enter in condenser (evaporator 3 during defrosting) liquid for being condensed into HTHP, out liquid by distribution head 10, Threeway 11 enters fluid reservoir 7, at this moment due to, almost without pressure difference, being advantageous to store liquid coolant inside and outside fluid reservoir.
The defects of both the advantages of possessing above-mentioned fluid reservoir and compensator simultaneously and exclusion.In a heating mode, fluid reservoir One end connects threeway, one end connection check valve, and both sides are high pressure, and fluid reservoir is inside and outside almost without pressure difference, is advantageous to store liquid Refrigerant.In a heating mode, be high pressure in fluid reservoir, when being converted to refrigeration mode and defrosting, due to check valve effect refrigerant not By fluid reservoir, but by so being still high pressure in fluid reservoir, due to expansion directly from device for drying and filtering and expansion valve The throttling action of valve, that side of fluid reservoir connection threeway is low pressure, and at this moment fluid reservoir inside and outside differential pressure is very big, so in fluid reservoir Refrigerant can be there are about 30% due to the decline of pressure, in the liquid coolant come out from fluid reservoir and flashed to by quick ramming system Gaseous state is then and remaining liquid coolant together participates in kind of refrigeration cycle, increases flow, realizes the effect of quickly defrosting.
In the utility model, in refrigeration mode and defrosting mode, condenser and evaporator realize exchange, are to pass through four-way Valve is come what is realized, and its concrete structure does not change, the function contrast that simply both realize, in order to ensure the technology of industry Specification, both definition have also been made corresponding change, and the evaporator in heating is except being condenser defined in defrosting system.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area Those of ordinary skill enlightened by it, in the case where not departing from this creation objective, without creativeness design and the technology The similar frame mode of scheme and embodiment, the protection domain of this patent all should be belonged to.

Claims (10)

1. one kind decompression removes defrosting system, it includes compressor, condenser and evaporator, it is characterised in that:The condenser connection First double loop, first double loop connect the evaporator, are wherein provided with the in first double loop on primary Ioops One expansion valve, fluid reservoir and the first check valve are provided with first double loop in another loop, the fluid reservoir connects institute State the first check valve.
2. a kind of decompression according to claim 1 removes defrosting system, it is characterised in that:The fluid reservoir is installed on indoor set It is interior.
3. a kind of decompression according to claim 1 removes defrosting system, it is characterised in that:The condenser connects institute by threeway State the first double loop.
4. a kind of decompression according to claim 1 removes defrosting system, the compressor connects condenser by four-way valve.
5. a kind of decompression according to claim 4 removes defrosting system, it is characterised in that:The condenser passes through the second double loop First double loop is connected, is wherein provided with the second expansion valve, second double back in second double loop on primary Ioops The second check valve is provided with road in another loop.
6. a kind of decompression according to claim 5 removes defrosting system, it is characterised in that:The condenser passes through distribution head, three Lead to and connect second double loop, second double loop connects first double loop by threeway.
7. a kind of decompression according to claim 5 removes defrosting system, it is characterised in that:The compressor passes sequentially through gas-liquid point Second double loop is connected from device, four-way valve, condenser, distribution head and threeway.
8. a kind of decompression according to claim 5 removes defrosting system, it is characterised in that:First expansion valve and described second Expansion valve connects the first device for drying and filtering and the second device for drying and filtering respectively.
9. a kind of decompression according to claim 4 removes defrosting system, it is characterised in that:Compressor is connected by gas-liquid separator The four-way valve, the evaporator connect the four-way valve.
10. a kind of decompression according to claim 1 removes defrosting system, it is characterised in that:The evaporator passes sequentially through distribution Head, threeway connect first double loop.
CN201720663640.XU 2017-06-09 2017-06-09 One kind decompression removes defrosting system Expired - Fee Related CN206847149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720663640.XU CN206847149U (en) 2017-06-09 2017-06-09 One kind decompression removes defrosting system

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Application Number Priority Date Filing Date Title
CN201720663640.XU CN206847149U (en) 2017-06-09 2017-06-09 One kind decompression removes defrosting system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107869864A (en) * 2017-06-09 2018-04-03 南京平日制冷科技有限公司 One kind decompression removes defrosting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107869864A (en) * 2017-06-09 2018-04-03 南京平日制冷科技有限公司 One kind decompression removes defrosting system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180105

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