CN103968477B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN103968477B CN103968477B CN201310041881.7A CN201310041881A CN103968477B CN 103968477 B CN103968477 B CN 103968477B CN 201310041881 A CN201310041881 A CN 201310041881A CN 103968477 B CN103968477 B CN 103968477B
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- heat exchanger
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- compressor
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Abstract
The invention provides an air conditioner which comprises a maincircuiting path and further comprises an auxiliarycircuiting path, wherein the main circuiting path comprises a main path compressor and a gas supplement device communicated with the gas supplement opening of the main path compressor; the auxiliarycircuiting path is coupled with the main circuiting path so as to increasethe gas supplement amount of the gas supplement device. According to the air conditioner provided by theinvention, the auxiliarycircuiting path is coupled with the main circuiting path, so that the gas supplement amount of the gas supplement device is increased, the effect of increasing enthalpy by supplementing gas of the main path compressor during two-stage compression is improved, the low-temperature heat capacityis improved and the heating performancecoefficient is increased, therefore, the heat capacity and heating performance of the air conditioner are improved.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of air-conditioner.
Background technology
Air source heat pump heating capacity declining rapid decay and cannot meeting user's request with outdoor environment temperature.It is existing to adopt
It is middle with one-level throttling not with twin-stage or quasi- two-stage compression second vapor injection increasing enthalpy technology, including the middle not exclusively cooling of two-stage throttling
Cooling circulation completely, to improve low-temperature heating capacity and COP, while reducing compressor exhaust temperature.But prior art Gas-supplying enthalpy-increasing
Ratio is not high under room temperature operating mode, causes Gas-supplying enthalpy-increasing to improving the DeGrain of coefficient of performance in heating, in outdoor environment
When temperature is very low, it is also limited that Gas-supplying enthalpy-increasing improves heating capacity.
The content of the invention
The present invention is intended to provide a kind of air-conditioner for improving heating capacity and heating performance.
The invention provides a kind of air-conditioner, including main road circulation, main road circulation include main road compressor and with main road pressure
The making-up air device that the gas supplementing opening of contracting machine is connected, air-conditioner also includes coupling to increase the air compensation of making-up air device with main road circulation
Bypass circulation.
Further, making-up air device is economizer；Economizer includes being connected to the benefit of indoor heat exchanger and main road compressor
The first refrigerant chamber between QI KOU, and the second refrigerant chamber being connected between indoor heat exchanger and outdoor heat exchanger；The
First throttle device is arranged in series between one refrigerant chamber and indoor heat exchanger so that the cold-producing medium after throttling is in the first refrigeration
Evaporation endothermic in agent chamber and make the cold-producing medium in second refrigerant chamber supercool；Connect between second refrigerant chamber and outdoor heat exchanger
It is provided with second throttling device.
Further, bypass circulation includes the bypass heat exchanger for making the cold-producing medium entered in outdoor heat exchanger supercool again.
Further, bypass heat exchanger includes the 3rd refrigerant chamber and the 4th refrigerant chamber of mutually heat exchange；Bypass is circulated
Also include bypass throttling arrangement, bypass throttling arrangement be arranged in series in the 3rd refrigerant chamber and indoor heat exchanger the port of export it
Between；4th refrigerant chamber is arranged in series between second refrigerant chamber and second throttling device.
Further, bypass circulation also include bypass compressor, bypass compressor be arranged in series in the 3rd refrigerant chamber and
Between the arrival end of indoor heat exchanger.
Further, making-up air device is flash evaporation；Flash evaporation includes the import being connected with the port of export of indoor heat exchanger
And the gaseous phase outlet being connected with the gas supplementing opening of main road compressor and the liquid-phase outlet being connected with outdoor heat exchanger；Flash evaporation
The 3rd throttling arrangement has been arranged in series between import and the port of export of indoor heat exchanger；Go here and there between liquid-phase outlet and outdoor heat exchanger
Connection is provided with the 4th throttling arrangement.
Further, bypass circulation includes the bypass heat exchanger of the mass dryness fraction for improving the cold-producing medium in flash evaporation.
Further, bypass heat exchanger includes the 5th refrigerant chamber and the 6th refrigerant chamber of mutually heat exchange；Bypass is circulated
Including bypass compressor, the air vent of bypass compressor is connected with the entrance point of the 5th refrigerant chamber；6th refrigerant chamber string
Connection is arranged between the 3rd throttling arrangement and the import of flash evaporation.
Further, the port of export of the 5th refrigerant chamber is connected with the entrance point of the 4th throttling arrangement.
Further, the air inlet of bypass compressor is connected with the gas outlet of the gas-liquid separator of main road compressor.
Air-conditioner of the invention, by circulating in main road in couple bypass circulation, so as to increase the benefit of making-up air device
Tolerance, improves Gas-supplying enthalpy-increasing effect of the main road compressor in two-stage compression, improves low-temperature heating capacity and coefficient of performance in heating, i.e.,
Improve the heating capacity and heating performance of air-conditioner.
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 system schematic of the first embodiment of air-conditioner of the invention；And
Fig. 2 is the system schematic of the second embodiment of air-conditioner of the invention.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
As depicted in figs. 1 and 2, air-conditioner of the invention, including main road is circulated, and main road circulation includes main road compressor
1 and the making-up air device 5 that is connected with the gas supplementing opening of main road compressor 1, air-conditioner also includes coupling to increase benefit with main road circulation
The bypass circulation of the air compensation of device of air 5.The present invention by circulating in main road in couple bypass circulation, so as to increase making-up air device
5 air compensation, improves Gas-supplying enthalpy-increasing effect of the main road compressor in two-stage compression, improves low-temperature heating capacity and heating performance system
Number, that is, improve the heating capacity and heating performance of air-conditioner.
Specifically, the system schematic of the first embodiment of the air-conditioner for the present invention shown in Fig. 1, in the embodiment
In, making-up air device 5 is economizer；Economizer includes two refrigerant chambers, two refrigerant chambers with the outlet of indoor heat exchanger 3
End connection, the first refrigerant chamber（QI invigorating chamber）It is connected with the gas supplementing opening of main road compressor 1, outlet and the outdoor in second refrigerant chamber
Heat exchanger 2 is connected.In the first refrigerant chamber（QI invigorating chamber）Import and indoor heat exchanger 3 between connect first throttle device
401, so that part of refrigerant evaporation gasification in QI invigorating chamber after being throttled, the cold-producing medium of gasification is into main road compressor
1 gas supplementing opening.First refrigerant chamber and second refrigerant chamber mutually exchange heat, due to evaporation endothermic, so that second refrigerant chamber
In cold-producing medium it is supercool.
Bypass circulation includes the bypass heat exchanger 9 for making the cold-producing medium entered in outdoor heat exchanger 2 supercool again.Specifically,
Bypass heat exchanger 9 also includes two refrigerant chambers（That is the 3rd refrigerant chamber and the 4th refrigerant chamber）, between two refrigerant chambers
Mutually heat exchange, the 4th refrigerant chamber is connected between the second refrigerant chamber of economizer and second throttling device 402, in the enforcement
In example, bypass heat exchanger 9 is bypass vaporizer, and the 3rd refrigerant chamber is connected in bypass circulation, and the cold-producing medium of bypass circulation exists
Evaporation endothermic in 3rd refrigerant chamber, so as to the cold-producing medium mistake again entered in the 4th refrigerant chamber from second refrigerant chamber
It is cold.
Bypass throttling arrangement 405 is arranged in series between the 3rd refrigerant chamber and the port of export of indoor heat exchanger 3, bypass pressure
Contracting machine 10 is arranged in series in constituting bypass circulation between the 3rd refrigerant chamber and the arrival end of indoor heat exchanger 3.
The operation principle of the first embodiment of the air-conditioner of the present invention is as follows, and aerofluxuss and the bypass of main road compressor 1 compress
Jing indoor heat exchangers 3 after the aerofluxuss mixing of machine 10（Condenser）After be divided into tie point, the second branch road and the 3rd branch road.First
The cold-producing medium on road be too cold into economizer after Jing bypasses heat exchanger 9 again（Bypass vaporizer）By further supercool, then Jing the
Two throttling arrangements 402（Main road electric expansion valve）Jing outdoor heat exchangers 2 after reducing pressure by regulating flow（Vaporizer）Into main road compressor 1
Low pressure air suction mouth.Second branch road（QI invigorating road）Cold-producing medium Jing first throttles device 401（QI invigorating road electric expansion valve）Throttling drop
Economizer entered after pressure absorb heat and the gas supplementing opening of compressor 1 is entered after evaporating completely, and with from pressing for the first time through main road compressor 1
Be reduced to the cold-producing medium of intermediate pressure mixing after again Jing be compressed to high pressure for the second time, finally from air vent discharge, formed main road circulation.
The cold-producing medium Jing bypasses throttling arrangement 405 of the 3rd branch road（Bypass electric expansion valve）Bypass heat exchanger 9 is entered after reducing pressure by regulating flow（It is auxiliary
Road vaporizer）Heat absorption evaporation is changed into refrigerant gas, and subsequently into bypass compressor 10 is compressed indoor heat exchanger 3 is discharged into
（Condenser）So as to form bypass circulation.
In the embodiment one of air-conditioner of the present invention, the cold-producing medium from the tie point out of indoor heat exchanger 3 is by economizer
It is substantially reduced with the rear specific enthalpy supercool twice of bypass heat exchanger 9, so as to increased import and the outlet cold-producing medium of outdoor heat exchanger 2
Than enthalpy difference and caloric receptivity, the caloric receptivity of outdoor heat exchanger 2 increases, and adds the caloric receptivity of bypass circulation with the consumption of bypass compressor 10
Work(, so as to cause the condensation load of indoor heat exchanger 3 to increase, the temperature and specific enthalpy for making the outlet cold-producing medium of indoor heat exchanger 3 is raised,
Cause the second branch road（QI invigorating road）Required refrigerant mass fluxes increase so as to improve air compensation.Air-conditioner of the present invention it is auxiliary
Although the extra wasted work of road compressor 10, degree of supercooling and air compensation are increased so as to improve heating capacity, air-conditioning for main road circulation
The coefficient of performance in heating of device is still improved, and compressor exhaust temperature decreases.
The system schematic of the second embodiment of the air-conditioner for the present invention shown in Fig. 2, in this embodiment, QI invigorating dress
5 are put for flash evaporation；Flash evaporation includes the import being connected with the port of export of indoor heat exchanger 3 and the QI invigorating with main road compressor 1
The mouth gaseous phase outlet being connected and the liquid-phase outlet being connected with outdoor heat exchanger 2；The import of flash evaporation and indoor heat exchanger 3
The 3rd throttling arrangement 403 is arranged in series between the port of export, the cold-producing medium into flash evaporation throttles through the 3rd throttling arrangement 403
Gas-liquid separation in flash evaporation is entered after the shwoot gasification of blood pressure lowering part, the gaseous refrigerant separated is mended into main road compressor 1
Gas, liquid refrigerant enters outdoor heat exchanger 2 from liquid-phase outlet, and the has been arranged in series between liquid-phase outlet and outdoor heat exchanger 2
Four throttling arrangements 404, throttle to the liquid refrigerant into outdoor heat exchanger 2.
Bypass circulation includes the bypass heat exchanger 9 of the mass dryness fraction for improving the cold-producing medium in flash evaporation.Specifically, bypass is changed
Hot device 9 includes two refrigerant chambers of mutually heat exchange, i.e. the 5th refrigerant chamber and the 6th refrigerant chamber；Bypass circulation includes bypass
Compressor 10, the air vent of bypass compressor 10 is connected with the entrance point of the 5th refrigerant chamber；The series connection of 6th refrigerant chamber sets
Put between the 3rd throttling arrangement 403 and the import of flash evaporation, so as to add to some refrigerant of the entrance flash evaporation after throttling
Thermal evaporation, making the mass flow of gaseous refrigerant increases, that is, improve the mass dryness fraction of the cold-producing medium in flash evaporation（Gaseous refrigerant
Mass flow/cold-producing medium total mass flow rate）.
The port of export of the 5th refrigerant chamber is connected with the entrance point of the 4th throttling arrangement 404, i.e., through bypass compressor
10 compression after cold-producing medium condense in the 5th refrigerant chamber after mix with the cold-producing medium of flash evaporation liquid-phase outlet after Jing throttle into
Enter outdoor heat exchanger 2.The air inlet of bypass compressor 10 is connected with the gas outlet of the gas-liquid separator 6 of main road compressor 1, i.e.,
Bypass compressor 10, bypass heat exchanger 9, the 4th throttling arrangement 404, outdoor heat exchanger 2, gas-liquid separator 6 are in turn connected to form
Bypass is circulated.
In this embodiment, the aerofluxuss Jing indoor heat exchangers 3 of main road compressor 1（Condenser）Afterwards respectively through the of main road
Three throttling arrangements 403（Electric expansion valve）, bypass heat exchanger 9 the 6th refrigerant chamber and flash evaporation, the saturated air in flash evaporation
Body enters the gas supplementing opening of main road compressor 1, the 4th throttling arrangement 404 of saturated liquid Jing main roads via QI invigorating branch road（Electronics is swollen
Swollen valve）Outdoor heat exchanger 2 is entered afterwards（Vaporizer）Heat absorption evaporation becomes gas into gas-liquid separator 6, then respectively enters master
The air entry of road compressor 1 and bypass compressor 10, the cold-producing medium Jing into the air entry of main road compressor 1 is compressed to for the first time
Again the second compressions of Jing second are finally discharged from air vent after mixing with the cold-producing medium of gas supplementing opening after intermediate pressure, form main road circulation.
Into the compressed entrance bypass heat exchanger 9 of refrigerant gas of the air entry of bypass compressor 10（Bypass condenser）After condensation with come
Mix from the saturated liquid of flash evaporation 5, and share the 4th throttling arrangement 404, the outdoor heat exchanger 2 of main road（Vaporizer）And gas-liquid
Separator 6, so as to form bypass circulation.
In the embodiment two of refrigerating plant of the present invention, bypass compressor 10 increased the refrigerant flow of outdoor heat exchanger 2
So as to increased caloric receptivity, and the entrance cold-producing medium mass dryness fraction of flash evaporation 5 is improve so as to improve main road pressure by bypass heat exchanger 9
The air compensation of contracting machine 1, the degree of superheat for making the second second compression initial state cold-producing medium of main road compressor 1 is significantly reduced, second
The ratio work(of compression is reduced, and final effect is significantly improved for the heating capacity of refrigerating plant, and delivery temperature is reduced, while heating performance system
Number increases.
In the first embodiment of the present invention and second embodiment, economizer 5, the structure of bypass heat exchanger 9 can be sets
Heat exchange of heat pipe, plate type heat exchanger, or micro-channel heat exchanger and miniature case tube heat exchanger.
The main road compressor 1 of refrigerating plant of the present invention can be vortexed quasi- split-compressor, birotor twin-stage Gas-supplying enthalpy-increasing
The combination of compressor or two any form of single-stage compressors, or the helical-lobe compressor with Gas-supplying enthalpy-increasing function or from
Heart compressor.The main road and bypass throttling arrangement of air-conditioner of the present invention can be capillary tube, restriction sleeve, heating power expansion valve, electricity
Sub- expansion valve, restricting orifice or aforementioned any reasonable combination.The main road circulation and bypass circulation of air-conditioner of the present invention can be added
The parts such as necessary four-way change-over valve carry out simple improving to adapt to freeze, heat or the application scenario such as water heating.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Air-conditioner of the invention, by circulating in main road in couple bypass circulation, so as to increase the benefit of making-up air device
Tolerance, improves Gas-supplying enthalpy-increasing effect of the main road compressor in two-stage compression, improves low-temperature heating capacity and coefficient of performance in heating, i.e.,
Improve the heating capacity and heating performance of air-conditioner.
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 (4)
1. a kind of air-conditioner, including main road is circulated, main road circulation include main road compressor (1) and with the main road compressor
(1) making-up air device (5) that gas supplementing opening is connected, it is characterised in that
The air-conditioner also includes that the bypass coupled to increase the air compensation of the making-up air device (5) with main road circulation is followed
Ring；
Wherein, one end of the bypass circulation is connected with the port of export of the indoor heat exchanger (3) of the air-conditioner, and the bypass is followed
The other end of ring is connected with the arrival end of the indoor heat exchanger (3)；
The making-up air device (5) is economizer；The economizer includes being connected to the indoor heat exchanger (3) and the main road pressure
The first refrigerant chamber between the gas supplementing opening of contracting machine (1), and it is connected to the indoor heat exchanger (3) and outdoor heat exchanger (2)
Between second refrigerant chamber；
The bypass circulation includes the bypass heat exchanger (9) for making the cold-producing medium entered in the outdoor heat exchanger (2) supercool again；
Downstream of the bypass heat exchanger (9) positioned at the making-up air device (5).
2. air-conditioner according to claim 1, it is characterised in that
First throttle device (401) has been arranged in series between first refrigerant chamber and the indoor heat exchanger (3) with envoy
Cold-producing medium after stream in first refrigerant chamber evaporation endothermic and make the cold-producing medium in the second refrigerant chamber supercool；
Second throttling device (402) has been arranged in series between the second refrigerant chamber and the outdoor heat exchanger (2).
3. air-conditioner according to claim 2, it is characterised in that
Threeth refrigerant chamber and fourth refrigerant chamber of the bypass heat exchanger (9) including mutual heat exchange；
Bypass circulation also includes bypass throttling arrangement (405), and the bypass throttling arrangement (405) is arranged in series in described the
Between the port of export of three refrigerant chambers and the indoor heat exchanger (3)；
4th refrigerant chamber is arranged in series between the second refrigerant chamber and the second throttling device (402).
4. air-conditioner according to claim 3, it is characterised in that
The bypass circulation also includes bypass compressor (10), and the bypass compressor (10) is arranged in series in the 3rd refrigeration
Between the arrival end of agent chamber and the indoor heat exchanger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310041881.7A CN103968477B (en) | 2013-02-01 | 2013-02-01 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310041881.7A CN103968477B (en) | 2013-02-01 | 2013-02-01 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968477A CN103968477A (en) | 2014-08-06 |
| CN103968477B true CN103968477B (en) | 2017-04-12 |
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ID=51238298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310041881.7A Active CN103968477B (en) | 2013-02-01 | 2013-02-01 | Air conditioner |
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| Country | Link |
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| CN (1) | CN103968477B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596144A (en) * | 2015-01-19 | 2015-05-06 | 珠海格力电器股份有限公司 | Refrigerating unit |
| CN104913435B (en) * | 2015-05-12 | 2022-01-18 | 珠海格力电器股份有限公司 | Air conditioning system, air conditioner and control method thereof |
| CN110986417A (en) * | 2019-11-25 | 2020-04-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Double-air-supplement heat pump system and control method thereof |
| CN111023360B (en) * | 2019-12-10 | 2021-07-30 | 青岛海信日立空调系统有限公司 | Air source heat pump unit |
| CN111256381B (en) * | 2020-01-19 | 2021-09-21 | 珠海格力电器股份有限公司 | Compressor anti-surge air supply system, control method and air conditioning equipment |
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| CN200940968Y (en) * | 2006-08-07 | 2007-08-29 | 北京市京科伦冷冻设备有限公司 | Refrigeration unit structure |
| JP2009299909A (en) * | 2008-06-10 | 2009-12-24 | Hitachi Appliances Inc | Refrigeration cycle device |
| CN101625171A (en) * | 2009-07-30 | 2010-01-13 | 天津商业大学 | High pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system |
| CN101625170A (en) * | 2009-07-30 | 2010-01-13 | 天津商业大学 | Low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system |
| CN201666686U (en) * | 2010-01-19 | 2010-12-08 | 珠海格力电器股份有限公司 | Throttling air supply system with ejectors |
| CN203083058U (en) * | 2013-02-01 | 2013-07-24 | 珠海格力电器股份有限公司 | Air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133047C (en) * | 2001-03-14 | 2003-12-31 | 清华同方股份有限公司 | Heat pump air conditioners suitable for cold area |
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2013
- 2013-02-01 CN CN201310041881.7A patent/CN103968477B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940968Y (en) * | 2006-08-07 | 2007-08-29 | 北京市京科伦冷冻设备有限公司 | Refrigeration unit structure |
| JP2009299909A (en) * | 2008-06-10 | 2009-12-24 | Hitachi Appliances Inc | Refrigeration cycle device |
| CN101625171A (en) * | 2009-07-30 | 2010-01-13 | 天津商业大学 | High pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system |
| CN101625170A (en) * | 2009-07-30 | 2010-01-13 | 天津商业大学 | Low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system |
| CN201666686U (en) * | 2010-01-19 | 2010-12-08 | 珠海格力电器股份有限公司 | Throttling air supply system with ejectors |
| CN203083058U (en) * | 2013-02-01 | 2013-07-24 | 珠海格力电器股份有限公司 | Air conditioner |
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| CN103968477A (en) | 2014-08-06 |
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