CN104390384B - Air-conditioning system - Google Patents
Air-conditioning system Download PDFInfo
- Publication number
- CN104390384B CN104390384B CN201410545836.XA CN201410545836A CN104390384B CN 104390384 B CN104390384 B CN 104390384B CN 201410545836 A CN201410545836 A CN 201410545836A CN 104390384 B CN104390384 B CN 104390384B
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- China
- Prior art keywords
- compressor
- air
- liquid refrigerant
- conditioning system
- cold
- 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.)
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Classifications
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0232—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with bypasses
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0401—Refrigeration circuit bypassing means for the compressor
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/28—Means for preventing liquid refrigerant entering into the compressor
Abstract
The invention provides a kind of air-conditioning system, including compression circulation, compressor has been arranged in series in compression circulation, air-conditioning system also includes that the liquid refrigerant in the air inlet pipeline by compressor is transported to the liquid refrigerant transfer system in the gas exhaust piping of compressor.Air-conditioning system of the invention, the liquid refrigerant before compressor is transferred to after compressor by arranging liquid refrigerant transfer system, effective control circulating mass of refrigerant, guarantee the validity and security of air-conditioning system operation, the range of operation of air-conditioner set is greatly expanded, and in heating operations, the liquid refrigerant before compressor is transferred to after compressor, realize that low-pressure liquid refrigerant is transferred directly to high pressure, so as to reach the purpose of fast lifting heating effect.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of air-conditioning system.
Background technology
General air-conditioning refrigeration system is all dissipated by refrigeration compressor, high temperature heat source heat exchanger, throttle part and low-temperature heat source
Hot device composition, can ensure that the security and validity of system operation under certain operating conditions, but when service condition is more than one
When determining scope, as system circulation refrigerant amount regulating power is limited, system reliability service cannot be ensured.Especially for many
Connection formula air-conditioner set, as the refrigerant amount of its own is than larger, and indoor operating load variability is than larger, to system system
The requirement of refrigerant cycle amount is just higher.
The content of the invention
The present invention is intended to provide a kind of air-conditioning system for being capable of effective control circulating mass of refrigerant.
The invention provides a kind of air-conditioning system, including compression circulation, compressor, air-conditioning have been arranged in series in compression circulation
System also includes that the liquid refrigerant in the air inlet pipeline by compressor is transported to the liquid refrigeration in the gas exhaust piping of compressor
Agent transfer system.
Further, liquid refrigerant transfer system include the gas-liquid separator that is connected on the air inlet pipeline of compressor and
Transfer device liquid refrigerant in gas-liquid separator being transferred in the gas exhaust piping of compressor.
Further, transfer device includes cold-producing medium transfer tank, and the liquid refrigerant in gas-liquid separator is imported
To the incoming line in cold-producing medium transfer tank, and using compressor pressure at expulsion by the liquid refrigerant of cold-producing medium transfer tank turn
Move on to the outgoing line in the gas exhaust piping of compressor.
Further, cold-producing medium transfer tank has inlet, pressure balance mouth, pressurization mouth and leakage fluid dram；Incoming line bag
Feed tube and pressure-equalizing pipe are included, outgoing line includes forcing pipe and discharging tube；There is on the gas exhaust piping of compressor first segment
Transfer control valve has been arranged in series between point and Section Point, and first node and Section Point；Inlet by feed tube with
The liquid outlet connection of gas-liquid separator；Pressure balance mouth is connected with compressor inleting pipe road by pressure-equalizing pipe；Pressurization mouth
Connected with the first node of the gas exhaust piping of compressor by forcing pipe；Leakage fluid dram is by discharging tube and the gas exhaust piping of compressor
Section Point connection.
Further, control valve has been arranged in series on feed tube, pressure-equalizing pipe, forcing pipe and discharging tube.
Further, the mouth that pressurizes is located at the top of cold-producing medium transfer tank, and leakage fluid dram is located at the bottom of cold-producing medium transfer tank.
Further, pressure balance mouth is located at the top of cold-producing medium transfer tank.
Further, air-conditioning system also includes oil eliminator, and oil eliminator is connected on the gas exhaust piping of compressor, and position
In the upstream of first node.
Air-conditioning system of the invention, by arranging liquid refrigerant transfer system by the liquid refrigerant before compressor
After being transferred to compressor, effective control circulating mass of refrigerant, it is ensured that the validity and security of air-conditioning system operation is greatly expanded
The range of operation of air-conditioner set, and in heating operations, the liquid refrigerant before compressor is transferred to after compressor, it is real
Existing low-pressure liquid refrigerant is transferred directly to high pressure, so as to reach the purpose of fast lifting heating effect.
Description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the principle schematic of air-conditioning system of the invention；
Fig. 2 is the principle schematic of air-conditioning system of the invention first step in liquid refrigerant transfer process；
Fig. 3 is the principle schematic of air-conditioning system of the invention second step in liquid refrigerant transfer process.
Description of reference numerals：
1st, compressor；2nd, oil eliminator；3rd, system high pressure tracheae；4th, cross valve；5th, indoor heat exchanger；6th, throttle part；
7th, hydraulic fluid pipe in system；8th, indoor throttle part；9th, outdoor heat exchanger；10th, gas-liquid separator inlet pipe；11st, gas-liquid separator；
12nd, gas-liquid separator escaping pipe；13rd, pressurize magnetic valve；14th, draining solenoid valve；15th, cold-producing medium transfer tank；16th, forcing pipe；17、
Discharging tube；18th, feed tube；19th, pressure-equalizing pipe；20th, liquid inlet electromagnetic valve；21st, pressure balance magnetic valve；22nd, transfer control valve.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
As shown in figure 1, air-conditioning system of the invention, including compression circulation, compression has been arranged in series in compression circulation
Machine 1, air-conditioning system also include the liquid refrigerant in the air inlet pipeline of compressor 1 is transported in the gas exhaust piping of compressor 1
Liquid refrigerant transfer system.The present invention is by arranging liquid refrigerant transfer system by the liquid refrigerant before compressor 1
After being transferred to compressor 1, effective control circulating mass of refrigerant, it is ensured that the validity and security of air-conditioning system operation expands significantly
The range of operation of air-conditioner set is opened up；And in heating operations, the liquid refrigerant before compressor is transferred to after compressor,
Realize that low-pressure liquid refrigerant is transferred directly to high pressure, so as to reach the purpose of fast lifting heating effect.
Liquid refrigerant transfer system includes the gas-liquid separator 11 being connected on the air inlet pipeline of compressor 1 and by gas-liquid
Liquid refrigerant in separator 11 is transferred to the transfer device in the gas exhaust piping of compressor 1.Gas-liquid separator 11 is by air-conditioning
Liquid refrigerant in the compression circulation of system is separated from gas-liquid two-phase admixture, is then shifted by transfer device
To the gas exhaust piping of compressor 1.
Preferably, transfer device includes cold-producing medium transfer tank 15, and the liquid refrigerant in gas-liquid separator 11 is led
Enter to the incoming line in cold-producing medium transfer tank 15, and using compressor 1 pressure at expulsion by the liquid of cold-producing medium transfer tank 15
Cold-producing medium is transferred to the outgoing line in the gas exhaust piping of compressor 1.Cold-producing medium transfer tank 15 is set, on the one hand can be by liquid
Cold-producing medium is stored in importing to cold-producing medium transfer tank 15, the amount of convenient control refrigerant circulation；On the other hand, think liquid system
After the compressor that cryogen is transferred to from before compressor provide an interim transfer, will liquid refrigerant be kept completely separate out from
Liquid refrigerant is imported in the gas exhaust piping of compressor by compression circulation, the convenient pressure at expulsion using compressor 1.
Specifically, cold-producing medium transfer tank 15 has inlet, pressure balance mouth, pressurization mouth and leakage fluid dram；Incoming line bag
Feed tube 18 and pressure-equalizing pipe 19 are included, outgoing line includes forcing pipe 16 and discharging tube 17；Have on the gas exhaust piping of compressor 1
Have between first node A and Section Point B, and first node A and Section Point B and be arranged in series transfer control valve 22；Feed liquor
Mouth is connected with the liquid outlet of gas-liquid separator 11 by feed tube 18；Pressure balance mouth passes through pressure-equalizing pipe 19 and compressor
1 air inlet pipeline is connected；Pressurization mouth is connected with the first node A of the gas exhaust piping of compressor 1 by forcing pipe 16；Leakage fluid dram passes through
Discharging tube 17 is connected with the Section Point B of the gas exhaust piping of compressor 1.
When air-conditioning system is run, when storing a certain amount of liquid refrigerants in detecting gas-liquid separator 11, in such as Fig. 2
Shown in thick lines, open incoming line, that is, open feed tube 18 and pressure-equalizing pipe 19, so as to by liquid refrigerants from gas-liquid separation
Device 11 is imported in cold-producing medium transfer tank 15, is then shut off incoming line.As needed, can be by the liquid refrigerant system of being stored in
In cryogen transfer tank 15, it is also possible to which liquid refrigerant is transferred in the gas exhaust piping of compressor 1.When transfer is needed, such as Fig. 3
Shown in middle thick lines, outgoing line is opened, and closes transfer control valve 22, so that the high pressure gas of compressor 1 are by pressurization
Pipe 16 is entered in cold-producing medium transfer tank 15, and liquid refrigerant is imported to the exhaust at Section Point B through discharging tube 17
In pipeline.
Preferably, control valve has been arranged in series on feed tube 18, pressure-equalizing pipe 19, forcing pipe 16 and discharging tube 17.
Series connection liquid inlet electromagnetic valve 20 i.e. on feed tube 18, pressure balance magnetic valve 21 of connecting on pressure-equalizing pipe 19, goes here and there on forcing pipe 16
Connection pressurization magnetic valve 13, draining solenoid valve 14 of connecting on discharging tube 17.
Preferably, for the ease of liquid refrigerant is imported to into compressor 1 completely discharge duct in, pressurization mouth be located at system
The top of cryogen transfer tank 15, leakage fluid dram are located at the high pressure gas compression of the bottom of cold-producing medium transfer tank 15, i.e. compressor 1 and are located at
In the discharge duct that the liquid refrigerant of the bottom of cold-producing medium transfer tank 15 enters into compressor 1 from leakage fluid dram.
Pressure balance mouth is located at the top of cold-producing medium transfer tank 15, and in gas-liquid separator 11, liquid refrigerant passes through feed liquor
During pipe 18 is entered in cold-producing medium transfer tank 15, need to derive the gaseous refrigerant at the top of cold-producing medium transfer tank 15,
So as to reduce the pressure in cold-producing medium transfer tank 15, it is easy to liquid refrigerant smoothly enter cold-producing medium transfer tank 15
In.
With reference to shown in Fig. 1, air-conditioning system also includes oil eliminator 2, and oil eliminator 2 is connected on the gas exhaust piping of compressor 1
On, and positioned at the upstream of first node A, i.e. compressor air-discharging firstly the need of separation lubricating oil therein, and pass through oil eliminator 2
Oil drain out import to compressor inlet, realize that the circulation to compressor lubricates.
With reference to shown in Fig. 1, the present invention air-conditioning system also include system high pressure tracheae 3, cross valve 4, indoor heat exchanger 5,
Hydraulic fluid pipe 7, indoor throttle part 8, outdoor heat exchanger 9, gas-liquid separator inlet pipe 10 and gas-liquid separation in throttle part 6, system
Device escaping pipe 12, above-mentioned these parts connect within air-conditioning systems according to schematic diagram shown in Fig. 1, and those skilled in the art are according to public affairs
Know general knowledge, it is also possible to make corresponding conversion.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Air-conditioning system of the invention, by arranging liquid refrigerant transfer system by the liquid refrigerant before compressor
After being transferred to compressor, effective control circulating mass of refrigerant, it is ensured that the validity and security of air-conditioning system operation is greatly expanded
The range of operation of air-conditioner set, and in heating operations, the liquid refrigerant before compressor is transferred to after compressor, it is real
Existing low-pressure liquid refrigerant is transferred directly to high pressure, so as to reach the purpose of fast lifting heating effect.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of circulation of air-conditioning system, including compression, has been arranged in series compressor (1) in the compression circulation, it is characterised in that
The air-conditioning system also includes for the liquid refrigerant in the air inlet pipeline of the compressor (1) being transported to the compressor (1)
Gas exhaust piping in liquid refrigerant transfer system；
The liquid refrigerant transfer system includes the gas-liquid separator (11) being connected on the air inlet pipeline of the compressor (1)
With the transfer dress being transferred to the liquid refrigerant in the gas-liquid separator (11) in the gas exhaust piping of the compressor (1)
Put；
The transfer device includes cold-producing medium transfer tank (15), and the liquid refrigerant in the gas-liquid separator (11) is led
Enter to the incoming line in cold-producing medium transfer tank (15), and utilize the pressure at expulsion of the compressor (1) to turn the cold-producing medium
The liquid refrigerant for moving tank (15) is transferred to the outgoing line in the gas exhaust piping of the compressor (1)；
The cold-producing medium transfer tank (15) is with inlet, pressure balance mouth, pressurization mouth and leakage fluid dram；
The incoming line includes feed tube (18) and pressure-equalizing pipe (19), and the outgoing line includes forcing pipe (16) and row
Liquid pipe (17)；
There is on the gas exhaust piping of the compressor (1) first node (A) and Section Point (B), and the first node (A) and
Transfer control valve (22) is arranged in series between the Section Point (B), the first node (A) is than the Section Point (B)
Closer to the compressor (1) exhaust side；
The inlet is connected with the liquid outlet of the gas-liquid separator (11) by the feed tube (18)；
The pressure balance mouth passes through the air inlet of pressure-equalizing pipe (19) and the gas-liquid separator (11) to the compressor (1)
Pipeline connection between mouthful；
The pressurization mouth is connected with the first node (A) of the gas exhaust piping of the compressor (1) by the forcing pipe (16)；
The leakage fluid dram is connected with the Section Point (B) of the gas exhaust piping of the compressor (1) by the discharging tube (17).
2. air-conditioning system according to claim 1, it is characterised in that
Connect on the feed tube (18), the pressure-equalizing pipe (19), the forcing pipe (16) and the discharging tube (17)
It is provided with control valve.
3. air-conditioning system according to claim 1, it is characterised in that
The pressurization mouth is located at the top of the cold-producing medium transfer tank (15), and the leakage fluid dram is located at the cold-producing medium transfer tank
(15) bottom.
4. air-conditioning system according to claim 1, it is characterised in that
The pressure balance mouth is located at the top of the cold-producing medium transfer tank (15).
5. air-conditioning system according to claim 1, it is characterised in that
The air-conditioning system also includes oil eliminator (2), and the oil eliminator (2) is connected on the blast pipe of the compressor (1)
Lu Shang, and it is located at the upstream of the first node (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545836.XA CN104390384B (en) | 2014-10-15 | 2014-10-15 | Air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545836.XA CN104390384B (en) | 2014-10-15 | 2014-10-15 | Air-conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104390384A CN104390384A (en) | 2015-03-04 |
| CN104390384B true CN104390384B (en) | 2017-03-29 |
Family
ID=52608321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410545836.XA Active CN104390384B (en) | 2014-10-15 | 2014-10-15 | Air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104390384B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780745A (en) * | 2018-12-03 | 2019-05-21 | 珠海格力电器股份有限公司 | Air-conditioning |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589217A (en) * | 2011-01-10 | 2012-07-18 | 珠海格力电器股份有限公司 | Refrigerant quantity control device, refrigerant quantity control method and air conditioner unit with control device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004219016A (en) * | 2003-01-17 | 2004-08-05 | Yanmar Co Ltd | Air conditioning system |
| JP3982548B2 (en) * | 2005-08-15 | 2007-09-26 | ダイキン工業株式会社 | Refrigeration equipment |
| CN201053785Y (en) * | 2007-06-11 | 2008-04-30 | 广东美的电器股份有限公司 | Heat pump air conditioner |
| JP5200593B2 (en) * | 2008-03-13 | 2013-06-05 | アイシン精機株式会社 | Air conditioner |
| US20110041523A1 (en) * | 2008-05-14 | 2011-02-24 | Carrier Corporation | Charge management in refrigerant vapor compression systems |
| CN204240632U (en) * | 2014-10-15 | 2015-04-01 | 珠海格力电器股份有限公司 | Air-conditioning system |
-
2014
- 2014-10-15 CN CN201410545836.XA patent/CN104390384B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589217A (en) * | 2011-01-10 | 2012-07-18 | 珠海格力电器股份有限公司 | Refrigerant quantity control device, refrigerant quantity control method and air conditioner unit with control device |
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| Publication number | Publication date |
|---|---|
| CN104390384A (en) | 2015-03-04 |
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