CN202032682U - T3 operating mode air-conditioner - Google Patents
T3 operating mode air-conditioner Download PDFInfo
- Publication number
- CN202032682U CN202032682U CN2011201516387U CN201120151638U CN202032682U CN 202032682 U CN202032682 U CN 202032682U CN 2011201516387 U CN2011201516387 U CN 2011201516387U CN 201120151638 U CN201120151638 U CN 201120151638U CN 202032682 U CN202032682 U CN 202032682U
- Authority
- CN
- China
- Prior art keywords
- operating mode
- compressor
- capillary
- conditioner
- air
- 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
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a T3 operating mode air-conditioner, which includes a compressor, an outdoor condenser, a main capillary tube, and an indoor evaporator. An air inlet port of the outdoor condenser is connected with an exhaust pipe of the compressor, and the main capillary tube is connected with an exhaust pipe mouth of the outdoor condenser and a liquid inlet pipe mouth of the indoor evaporator. The T3 operating mode air-conditioner further includes a bypass capillary tube connected in parallel with the main capillary tube. In the utility model, the bypass capillary tube is connected in parallel to the main capillary tube, so that a rotating mechanism of the compressor is formed, the system pressure in high-temperature environment can be effectively lowered, system cooling capacity and cooling efficiency are ensured, adverse phenomena like frequent compressor start/stop and worse abrasion can be avoided, and the T1 operating mode compressor can cool and run in the T3 operating mode.
Description
Technical field
The utility model relates to the air-conditioner technical field, more particularly, relates to the air-conditioner that uses under a kind of T3 operating mode.
Background technology
In the family expenses air-conditioning technical field, at different use climatic environment maximum temperatures, air-conditioner is divided into T1, T2, three kinds of operating mode types of T3 (referring to the definition of GB/T7725-2004 " room air conditioner "), the environmental working condition condition of the air-conditioner correspondence of three kinds of climate types is as shown in table 1, wherein, the T3 operating mode is the megathermal climate type, uses climatic environment (maximum temperature) can reach 52 ℃, and service condition is the most abominable.
The environment temperature of table 1 air-conditioner work (℃)
The variation of environment temperature produces significant effects to the cooler compressor performance, is mainly reflected in: because the too high air-conditioner condensing pressure that causes of environment temperature rises, the delivery temperature of compressor raises, and compressor electric motor efficient and adiabatic efficiency descend; Evaporating pressure rises simultaneously, and the effective heat transfer zone of vapour-liquid two-phase reduces, and causes exchange capability of heat sharply to reduce, and the refrigerating capacity of cooler compressor and efficient reduce, and energy consumption increases.In addition, operation can cause that also the lubricating oil decomposes becomes carbon deposit under the condition of high temperature, causes compressor electric motor wearing and tearing aggravation, and the electrical machine insulation grade reduces, and carbon deposit and motor wearing and tearing material cause that air-conditioning refrigeration system stops up.The oil decomposition thing can cause refrigeration to reduce with cold-producing medium generation chemical reaction, and the acidic materials of generation can cause strong corrosion to compressor.Simultaneously, because the rising of pressure also need improve the withstand voltage design of air-conditioner heat-exchange system and pipeline aspect and the sealability of high temperature lower seal device.
At present, mainly contain two kinds of methods in the industry and design the T3 air-conditioner:
1, improve the insulating materials temperature classification of cooler compressor motor, can normally operation under the T3 operating mode to guarantee cooler compressor.But the cost of T3 operating mode compressor has bigger amplification than common compressor, and because the restriction of compressor manufacturer production capacity, the compressor output of T3 operating mode is little, purchases limited.
2, adopt subcooled liquid to spray cooling method: in the air-conditioner running; before Compressor Discharge Pressure does not reach the maximum protection value; the liquid refrigerant of partial condensation is ejected in the cylinder of compressor at the condensator outlet place by returning the liquid capillary; utilize the evaporation latent heat cooling compressor of cold-producing medium, thereby construct the running environment of similar T1 operating mode cooler compressor.But this method often makes back the liquid capillary that risk of breakage is arranged, and use unloader even meeting are owing to the malfunctioning normal operation that has influence on air-conditioner of unloader.
The utility model content
The utility model purpose is intended to overcome above-mentioned the deficiencies in the prior art; provide a kind of air-conditioner of T3 operating mode, configuration pressure reducing protection device in refrigeration system pipeline, the pressure reducing protection of realization system under hot environment; thereby improved the versatility of compressor, guaranteed the high efficient and reliable operation of system.
The technical solution adopted in the utility model is: T3 operating mode air-conditioner, comprise the compressor, outdoor condenser, main capillary, the indoor evaporator that connect successively, the air inlet port of outdoor condenser links to each other with the blast pipe of compressor, main capillary is the feed liquor mouth of pipe of the give vent to anger mouth of pipe and the indoor evaporator of junction chamber external condenser respectively, also comprise bypass capillary, described bypass capillary and main capillary paralleling.
The feed liquor mouth of pipe of evaporimeter in the above-mentioned T3 operating mode air-conditioner, the fluid port junction chamber of described bypass capillary.
Above-mentioned T3 operating mode air-conditioner, the internal diameter of described bypass capillary is less than described master internal diameter capillaceous.
Above-mentioned T3 operating mode air-conditioner, the length of described bypass capillary is greater than described master length capillaceous.
Above-mentioned T3 operating mode air-conditioner also comprises cross valve, and first valve port of described cross valve connects the blast pipe of compressor, and second valve port of described cross valve connects the escape pipe of indoor evaporator, the air inlet pipe of the 3rd valve port junction chamber external condenser of described cross valve.
Above-mentioned T3 operating mode air-conditioner, described T3 operating mode air-conditioner also comprises the compressor liquid reservoir, described compressor liquid reservoir connects the 4th valve port of described compressor and described cross valve respectively.
Compared with prior art, the utlity model has following advantage:
1, by bypass capillary and main capillary paralleling, form the protection mechanism of compressor, can effectively reduce the system pressure under the hot environment, guaranteed system's refrigerating capacity and refrigerating efficiency, avoided disadvantageous phenomenons such as high frequent start-stop, wearing and tearing aggravation.
2, the utility model only need increase bypass capillary, the compressor application that just can make the TI operating mode is under the T3 operating mode, and little to the existing systems structural change, need not to change compressor, make the complete machine design cost of T3 operating mode air-conditioner lower, more traditional T3 operating mode air-conditioner has greater advantage, and product is more competitive.
3, the utility model air-conditioner is applied widely, highly versatile, and the operational reliability height, mature production technology, the purchasing of raw materials is convenient.
Description of drawings
Fig. 1 is the refrigerant system configurations schematic diagram of T3 operating mode air-conditioner of the present utility model.
The specific embodiment
For common air-conditioner refrigerating system, after the cold-producing medium of HTHP is discharged from compressor, the main capillary and enter evaporimeter of after outdoor condenser condenses, flowing through with the liquid state of low-temp low-pressure, the gas that evaporates flow back into compressor again.As shown in Figure 1, T3 operating mode air-conditioner of the present utility model comprises outdoor condenser 2, main capillary 3, bypass capillary 4 and the indoor evaporator 5 that is linked in sequence.Wherein, main capillary 3 and bypass capillary 4 are connected in parallel between outdoor condenser 2 and the indoor evaporator 5, and main capillary 3 and the fluid port of bypass capillary 4 are connected the feed liquor mouth of pipe of indoor evaporator 5 respectively.The refrigeration system of T3 operating mode air-conditioner of the present utility model also comprises compressor 1, compressor liquid reservoir 7 and cross valve 6, compressor 1 links to each other with compressor liquid reservoir 7, four valve ports of cross valve 6 connect compressor 1, compressor liquid reservoir 7, outdoor condenser 2 and indoor evaporator 5 respectively, wherein first valve port of cross valve 6 connects the blast pipe of compressor 1, second valve port connects the escape pipe of indoor evaporator 5, the air inlet pipe of the 3rd valve port junction chamber external condenser 2, the 4th valve port connects compressor liquid reservoir 7.Main capillary 3 and the pressure reducing protection mechanism of bypass capillary 4 as compressor 1 can effectively reduce the system pressure under the hot environment, have guaranteed system's refrigerating capacity and refrigerating efficiency, have avoided disadvantageous phenomenons such as high frequent start-stop, wearing and tearing aggravation.
When under air-conditioner is in high ambient conditions, using, pressure in the system pipeline raises rapidly, at this moment, the high-pressure side of compressor 1 and low-pressure side form direct conducting state by parallel branch capillaceous, on high-tension side cold-producing medium will flow to low-pressure side by bypass capillary 4, main capillary 3, then the pressure in the system pipeline can greatly reduce, and this moment, the temperature of compressor 1 also can correspondingly reduce, thereby guarantees the system device normally operation at high temperature of system pipeline.
Owing to be provided with the bypass capillary branch road, can effectively reduce the pressure that capillary bore of original system pipeline, the pressure in the system pipeline also greatly reduces, thereby guarantees that system pressure is within the normal range (NR).And the flow velocity of the refrigerant of flow through main capillary 3 and bypass capillary 4 can not descend too much, thereby the refrigerating capacity of system is maintained, and is less to the refrigerating capacity and the Energy Efficiency Ratio influence of system.
Compressor of the present utility model can use T1 operating mode compressor, at bypass capillary 4 that lacks than main capillary flow of main capillary 3 next door bypass, the liquid refrigerant that outdoor condenser 2 comes out is respectively by main capillary 3 and bypass capillary 4, the inboard evaporimeter of inlet chamber again after the mixing.This indoor evaporimeter can be common evaporimeters such as common evaporimeter, heat exchanger or micro-channel heat exchanger, for example aforesaid indoor evaporator.When the air-conditioner of this structure moved under the conventional operation operating mode, most cold-producing medium all passed through the inboard evaporimeter of main capillary 3 inlet chambers, had guaranteed the normal refrigerating capacity of air-conditioner; And when air-conditioner moves under high-temperature severe environment, owing to pressure differential becomes big reason, the cold-producing medium of the bypass capillary 4 that lacks than main capillary 3 flows of flowing through can increase relatively, can play air-conditioner step-down cooling, just the effect that delivery temperature, pressure and the running current of compressor reduced.Compressor or system's increase unloader that whole refrigeration system need not to use the T3 operating mode also can normally freeze under the abominable working environment of T3 operating mode.
Below, with four groups of test for data superiority of the present utility model is described:
Get three air-conditioners, wherein one is air-conditioner of the present utility model (hereinafter to be referred as main frame), two testing machines as a comparison in addition, wherein one refrigeration system has only a capillary, be connected between condenser and the evaporimeter, the system system of another air-conditioner has main capillary and bypass capillary, and its main capillary is connected between condenser and the evaporimeter, and bypass capillary is connected between condensator outlet and the compressor return air pipe.Verify the beneficial effects of the utility model by a wall scroll air-conditioner capillaceous, two different double capillary air-conditioners are carried out performance under T1 or T3 operating mode test, wherein, main internal diameter capillaceous is 2.2mm, the internal diameter of bypass capillary is internal diameter 0.9mm, and result of the test is as follows in detail:
Testing program one:
Main frame master capillary pipe range 700mm, bypass capillary pipe range 2000mm.
Contrast scheme one (a): have only a capillary in the system, capillary pipe range 700mm;
Contrast scheme one (b): bypass capillary is connected between condensator outlet and the compressor return air pipe; The liquid refrigerant of part condensation is directly injected in the compressor return air pipe by bypass capillary, with the refrigerant mixed that participates in evaporating heat absorption of coming flash-pot, the cooling after just enter the compressor liquid reservoir; Main capillary pipe range 700mm, bypass capillary pipe range 2000mm.
Under T1 and T3 operating mode, detect the performance of testing machine, result such as following table:
Result of the test shows, increase bypass capillary in refrigeration system after, under the T3 operating mode, the delivery temperature of compressor and the numerical value of running current are not with the bypass capillary scheme range of decrease bigger relatively, thereby illustrated, increase bypass capillary and have a significant effect for optimizing compressor performance.
Testing program two:
The main capillary pipe range 700mm of main frame, bypass capillary pipe range 500mm.
The contrast scheme: bypass capillary is connected between condensator outlet and the compressor return air pipe.
Under T1 and T3 operating mode, detect the performance of testing machine, result such as following table:
Testing program three:
The main capillary pipe range 600mm of main frame, bypass capillary pipe range 2000mm,
The contrast scheme: bypass capillary is connected between condensator outlet and the compressor return air pipe.
Under T1 and T3 operating mode, detect the performance of testing machine, result such as following table:
Testing program four:
Carry out main capillary, the contrast test of bypass capillary under different pipe ranges with main frame under a plurality of T3 operating modes, temperature, the humidity parameter of adjusting the T3 operating mode are:
Indoor doing/wet-bulb temperature: 32/23 ℃, outdoor doing/wet-bulb temperature: 55/31 ℃; Working voltage: 198V
In this testing program, the main capillary of main frame and the pipe range of bypass capillary have multiple combination (seeing table middle explanation), the The performance test results of testing machine such as following table:
Four the interpretation of result from testing program two to testing program, the scheme that adds bypass capillary in refrigeration system is to realize the air-conditioner of the compressor coupling T3 operating mode of T1 operating mode, and, adopt the frame mode of bypass capillary and main capillary paralleling, be connected condensator outlet with bypass capillary and compare with the frame mode between the compressor return air pipe, the former has more technical advantage.The experimenter can be according to concrete requirement, the length parameter of choose reasonable master's capillary and bypass capillary carries out test of many times, when main capillary and bypass capillary matched each other, refrigeration system can reach optimization, thereby determined the parameter of main capillary and bypass capillary.
Claims (6)
1. T3 operating mode air-conditioner, comprise the compressor, outdoor condenser, main capillary, the indoor evaporator that connect successively, the air inlet port of outdoor condenser links to each other with the blast pipe of compressor, main capillary is the feed liquor mouth of pipe of the give vent to anger mouth of pipe and the indoor evaporator of junction chamber external condenser respectively, it is characterized in that: also comprise bypass capillary, described bypass capillary and main capillary paralleling.
2. T3 operating mode air-conditioner according to claim 1 is characterized in that: the fluid port of described bypass capillary connects the feed liquor mouth of pipe of described indoor evaporator.
3. T3 operating mode air-conditioner according to claim 1 is characterized in that: the internal diameter of described bypass capillary is less than described master internal diameter capillaceous.
4. T3 operating mode air-conditioner according to claim 1 is characterized in that: the length of described bypass capillary is greater than described master length capillaceous.
5. T3 operating mode air-conditioner according to claim 1, it is characterized in that: described T3 operating mode air-conditioner also comprises cross valve, first valve port of described cross valve connects the blast pipe of compressor, second valve port of described cross valve connects the escape pipe of indoor evaporator, the air inlet pipe of the 3rd valve port junction chamber external condenser of described cross valve.
6. T3 operating mode air-conditioner according to claim 5 is characterized in that: described T3 operating mode air-conditioner also comprises the compressor liquid reservoir, and described compressor liquid reservoir connects the 4th valve port of described compressor and described cross valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201516387U CN202032682U (en) | 2011-05-13 | 2011-05-13 | T3 operating mode air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201516387U CN202032682U (en) | 2011-05-13 | 2011-05-13 | T3 operating mode air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202032682U true CN202032682U (en) | 2011-11-09 |
Family
ID=44894978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201516387U Expired - Fee Related CN202032682U (en) | 2011-05-13 | 2011-05-13 | T3 operating mode air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202032682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258410A (en) * | 2015-10-22 | 2016-01-20 | 广东美的制冷设备有限公司 | Air conditioner and method for improving refrigerating capacity of air conditioner under high-temperature environment |
-
2011
- 2011-05-13 CN CN2011201516387U patent/CN202032682U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258410A (en) * | 2015-10-22 | 2016-01-20 | 广东美的制冷设备有限公司 | Air conditioner and method for improving refrigerating capacity of air conditioner under high-temperature environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201885478U (en) | Low temperature type air source heat pump unit | |
| CN102645060B (en) | Multi-split air conditioning system | |
| CN104864621B (en) | A kind of four-pipe system Dual-evaporator refrigeration system | |
| CN206683105U (en) | A kind of compound computer-room air conditioning system of multiple | |
| CN103411353A (en) | Air-source low-temperature twin-stage compression heat pump air conditioner | |
| CN210425671U (en) | Ultralow-temperature perennial refrigeration type air-cooled air conditioning unit | |
| CN205991543U (en) | A kind of ultralow ambient temperature air source high-temperature heat pump device | |
| CN203148105U (en) | Screw type air source heat pump hot-cold water unit driven by gas engine | |
| CN202032682U (en) | T3 operating mode air-conditioner | |
| CN203464542U (en) | Air source low-temperature two-stage compression heat pump air conditioner | |
| CN201795645U (en) | Novel evaporation type parallel flow heat exchanger and air conditioner employing same | |
| CN210463660U (en) | Ultra-low temperature air source heat pump unit with parallel compressors | |
| CN204806586U (en) | Evaporation cooling formula cooling water set | |
| CN204240639U (en) | Heat pump type air conditioning system | |
| CN1908556A (en) | Refrigerating air conditioner in high temperature working condition | |
| CN204612244U (en) | Modular heat pump | |
| CN203323454U (en) | Large-volume double-evaporator screw type ice storage heat pump unit | |
| CN203163339U (en) | Water-cooled cooling-heating-integrated water temperature control machine | |
| CN207317305U (en) | Condenser tandem lorry air-conditioning system | |
| CN2926901Y (en) | Cooling system of central air-conditioner | |
| CN101482350B (en) | Improved structure of air conditioner system | |
| CN206001739U (en) | A kind of low-temperature air-cooling heat pump system | |
| CN110849032A (en) | Compressor waste heat driven compression-injection refrigerating system | |
| CN204240638U (en) | Heat pump type air conditioning system | |
| CN204438584U (en) | Operation of air conditioning systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20150513 |
|
| EXPY | Termination of patent right or utility model |