CN202328541U - T3 working condition air-conditioner. - Google Patents
T3 working condition air-conditioner. Download PDFInfo
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- CN202328541U CN202328541U CN2011205253323U CN201120525332U CN202328541U CN 202328541 U CN202328541 U CN 202328541U CN 2011205253323 U CN2011205253323 U CN 2011205253323U CN 201120525332 U CN201120525332 U CN 201120525332U CN 202328541 U CN202328541 U CN 202328541U
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- 239000003507 refrigerant Substances 0.000 claims abstract description 21
- 238000005057 refrigeration Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 11
- 230000001012 protector Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model provides a T3 working condition air-conditioner. The T3 working condition air-conditioner includes a compressor, an outdoor condenser, a main capillary tube and an indoor evaporator which are connected sequentially, wherein the air inlet end port of the outdoor condenser is connected with an exhaust pipe of the compressor; the main capillary tube is connected with an outlet pipe of the outdoor condenser and a liquid feeding pipe port of the indoor evaporator respectively; a by-pass capillary tube is connected in parallel with the main capillary tube; a first electromagnetic valve and a refrigerant flow regulator are arranged on a refrigeration pipeline of the air-conditioner; the first electromagnetic valve is connected with the outlet pipe of the outdoor condenser; the refrigerant flow regulator includes a refrigerant storage tank, a second electromagnetic valve pipeline and a one-way pressure valve pipeline; and the second electromagnetic valve pipeline and the one-way pressure valve pipeline are connected in parallel to the refrigerant storage tank and the refrigeration system pipeline of the air-conditioner. The T3 working condition air-conditioner can effectively reduce the system pressure in a high-temperature environment, guarantees the refrigerating capacity and refrigerating efficiency of the system, and avoids the unfavorable phenomena that the compressor operates and stops frequently, abrasion is intensified and the like.
Description
Technical field
The utility model belongs to the air-conditioner technical field, relates in particular to a kind of T3 operating mode air-conditioner.
Background technology
In the family expenses air-conditioning technical field, to 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 varying environment working condition that the air-conditioner of three kinds of climate types is corresponding; 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.Work under the T3 adverse circumstances when air-conditioner refrigerating system, its refrigeration system is easy to produce high pressure, and compressor overcurrent, overheated, overload protective device tripping promptly appear in can not start shooting operation or the start just of many air-conditioners, i.e. compressor " jumping machine " phenomenon.In case compressor is jumped machine, just can resume operation automatically more than wanting half an hour at least, and can jump machine once more very soon, form perniciously, the while has also reduced the two-phase section of effective heat exchange, causes the decline of refrigerating capacity and Energy Efficiency Ratio.To T3 operating mode area service condition, prior art T3 operating mode air-conditioner can reach overload protection through adding the unloader device, lets T1 compression function under the T3 work condition environment, move.As shown in Figure 1, unloader 23 outlets connect an off-load capillary 21, form the relief arrangement of T3 operating mode air-conditioner.Unloading way generally is that off-load capillary 21 outlets of relief arrangement are positioned at the indoor heat exchanger liquid feeding end, and is parallelly connected with throttle capillary tube 22.Generally speaking, its operation principle is that unloader is opened when condensing pressure too high (reaching the unloader setting pressure), and the highly pressurised liquid of condensator outlet is discharged, and is equivalent to regulate flow, reduces condenser pressure.Compressor is jumped to stop protecting and mainly contained two kinds: 1, the compressor operating electric current is excessive; 2, compressor exhaust temperature is too high.Work under the T3 adverse circumstances when air-conditioner refrigerating system, its refrigeration system is easy to produce high pressure, and many air-conditioner running currents are very high.Adopt off-load air-conditioner system capillaceous under this abominable T3 environment, to work, unloader is opened, and is equivalent to refrigerating capillary and the effect of off-load capillary paralleling, and this moment, the refrigerant flow of system increased, and the running current of compressor can raise accordingly.When the compressor operating electric current exceeded the working value of overload of compressor protector, protector broke off and makes the compressor outage quit work.The compressor that this T1 compressor of prior art adopts the mode T3 operating mode air-conditioner of unloader to adopt can only be the relatively wide compressor of protector action current.
The utility model content
For addressing the above problem; The utility model purpose aims to 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.
For realizing that above-mentioned purpose adopts following technical scheme: a kind of 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; The outlet of main capillary difference junction chamber external condenser and the feed liquor mouth of pipe of indoor evaporator; Bypass capillary and main capillary paralleling also are provided with first magnetic valve and refrigerant flow adjuster on the refrigeration pipe of air-conditioner, the outlet of the said first magnetic valve junction chamber external condenser; Said refrigerant flow adjuster is made up of cold-producing medium accumulator tanks, the second magnetic valve pipeline, one-way pressure valve pipeline, and the second magnetic valve pipeline, one-way pressure valve pipeline are attempted by on cold-producing medium accumulator tanks and the air-conditioner refrigerating system pipeline.
Said refrigerant flow adjuster is arranged on the pipeline between first magnetic valve and the two capillary paralleling branch roads.
The outside bulb is set on outdoor condenser, and said outside bulb is communicated by letter with the controller of air-conditioner and is connected.
The pipeline of said second magnetic valve is inserted into cold-producing medium accumulator tanks bottom section.
The beneficial effect of the utility model is:
1, increases the refrigerant flow adjuster in the refrigeration system of the utility model; And outfit bypass capillary and main capillary paralleling; Form compressor well, protection mechanism efficiently; Can effectively reduce the system pressure under the hot environment, guarantee system's refrigerating capacity and refrigerating efficiency, avoid disadvantageous phenomenons such as high frequent start-stop, wearing and tearing aggravation.
2, the utility model can make the TI operating mode compressor application under the T3 operating mode; And little to the existing systems structural change, need not to change compressor; Make the entire machine design cost of T3 operating mode air-conditioner lower, than traditional T 3 operating mode air-conditioners greater advantage is arranged, product is more competitive.
Description of drawings
Fig. 1 is the refrigerant system configurations sketch map of existing T3 operating mode air-conditioner;
Fig. 2 is the utility model T3 operating mode air-conditioner refrigerating system structural representation;
Fig. 3 is the utility model refrigerant system configurations sketch map under the T3 operating mode.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that practical implementation described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, existing T3 operating mode air-conditioner includes compressor, outdoor condenser, main capillary 22, bypass capillary 21 and indoor evaporator.Wherein, on bypass capillary, also be connected with unloader 23, formed the pressure reducing protection mechanism of compressor.But the compressor that this T1 compressor adopts the mode T3 air-conditioner of unloader to adopt can only be the relatively wide compressor of protector action current, thereby can not be widely used.
Referring to Fig. 2,3, the utility model connects first magnetic valve and refrigerant flow adjuster on the condensator outlet pipe of air-conditioner refrigerating system.Wherein, the refrigerant flow adjuster comprises cold-producing medium accumulator tanks, the second magnetic valve pipeline, one-way pressure valve pipeline, and the second magnetic valve pipeline, one-way pressure valve pipeline are attempted by on cold-producing medium accumulator tanks and the air-conditioner refrigerating system pipeline.One-way pressure valve 3 has single flow direction, and promptly cold-producing medium can only flow into cold-producing medium scalable device 6 by one-way pressure valve 3, and the cold-producing medium in the cold-producing medium scalable device 6 can not flow out from this one-way pressure valve 3.When the pressure reduction at one-way pressure valve 3 two ends during greater than the pressure that sets, one-way pressure valve 3 is opened, when the pressure reduction at one-way pressure valve 3 two ends during less than the pressure that sets, and one-way pressure valve 3 open and close.At condensator outlet first magnetic valve 7 of connecting.Bypass capillary 9 of parallel connection at main capillary 8 places.These bypass capillary 9 internal diameters are about 2 meters of φ 0.9 length.During running refrigerating, because the caliber internal diameter of bypass capillary 9 is little, length is very long at normal temperatures for air-conditioner, and resistance is very big, and the condensing pressure of running at normal temperature refrigeration is lower, and the pressure reduction at bypass capillary 9 two ends can only make the cold-producing medium of minute quantity pass through.So cold-producing medium mainly is through main capillary 8 throttlings.When air-conditioner of the present invention moved under the T3 work condition environment, condensing pressure rose, and the pressure reduction at bypass capillary 9 two ends increases makes cold-producing medium pass through bypass capillary 9.The internal diameter of described capillary A 8 and length for needs flow precise design with process, guarantee that the cold-producing medium pass through reaches the flow of specified refrigeration.Under the total flow basis of bypass capillary 9 and 8 parallel connections of main capillary and the air-conditioner T3 operating mode during operation needed flow corresponding, delivery temperature can be not too high when guaranteeing that air-conditioner moves under the T3 bad working environments.
The Capacity design of cold-producing medium scalable device 6 is a foundation according to the difference of the refrigerant amount that moves under the refrigerant amount of air-conditioner running at normal temperature and the T3 bad working environments; Purpose is to make refrigeration system under the T3 operating mode, and system regulates the cold-producing medium that causes producing excess enthalpy because of pressure and can both be accommodated in the cold-producing medium scalable device 6.The pressure difference of one-way pressure valve 3 charges into behind the needed cold-producing medium pressure differential of system according to cold-producing medium scalable device 6 under the condensing pressure of running refrigerating air-conditioner under the T3 mal-condition and this operating mode and sets; In the off-premises station arranged outside outside bulb 10; Through this outside bulb 10; But the temperature in the inspection chamber outside is input to the indoor set controller then.
When air-conditioner was closed, first magnetic valve 7 was often opened and is in normally closed with second magnetic valve 5; This moment, system balancing pressure was about about 1MP, and cold-producing medium scalable device 6 interior pressure reduction with system are not enough with let one-way pressure valve 3 open.
When opening air-conditioner; Indoor controller is judged the outside temperature whether greater than 45 degree, and when the induction outdoor environment temperature is lower than 45 when spending, 7 energisings of first magnetic valve are closed; 5 energisings of second magnetic valve are opened; Compressor operating produces negative pressure in low-pressure side, makes in the path arrival refrigeration system of most cold-producing mediums through second magnetic valve, 5 places in the cold-producing medium scalable device 6 and participates in circulation, behind the delay 5S (delay time can draw according to the different type of machines experiment); Close second magnetic valve 5, open first magnetic valve 7 this moment.Because this moment, the condensing pressure of running refrigerating was lower, the pressure reduction at bypass capillary 9 two ends can only make the cold-producing medium of minute quantity pass through, and system is through main capillary 8 throttlings.This moment, the cold-producing medium and the main capillary 8 of air-conditioner system were the following perfect condition that is complementary of this configuration, and it is optimum that refrigerating capacity reaches.
When air-conditioner moves under the T3 bad working environments; This moment, condensing pressure was very high; One-way pressure valve 3 pressure reduction that cold-producing medium scalable device 6 connects are very big, reach it and open pressure reduction, and one-way pressure valve 3 is opened; Cold-producing medium in the system flows into cold-producing medium scalable device 6 from flowing into one-way pressure valve 3 inlets; When the one-way pressure valve 3 two ends pressure reduction of cold-producing medium scalable device 6 during less than one-way pressure valve 3 predefined pressure reduction, one-way pressure valve 3 closures, the cold-producing medium in this moment system is a needed refrigerant amount under this T3 bad working environments.And the pressure reduction at bypass capillary 9 two ends makes cold-producing medium pass through bypass capillary 9 at this moment; Needed flow was corresponding when bypass capillary 9 moved under the T3 operating mode according to this air-conditioner with the total flow of main capillary 8 parallel connections, and delivery temperature and compressor operating electric current can be not too high when moving under the T3 bad working environments with the assurance air-conditioner.This moment, the flow of cold-producing medium and system refrigerant of system be this air-conditioner needed refrigerant amount and flow when under the T3 bad working environments, moving, thereby the reliability that has guaranteed air-conditioner is moved.
Claims (4)
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; The outlet of main capillary difference junction chamber external condenser and the feed liquor mouth of pipe of indoor evaporator; Bypass capillary and main capillary paralleling is characterized in that: first magnetic valve and refrigerant flow adjuster also are set, the outlet of the said first magnetic valve junction chamber external condenser on the refrigeration pipe of air-conditioner; Said refrigerant flow adjuster is made up of cold-producing medium accumulator tanks, the second magnetic valve pipeline, one-way pressure valve pipeline, and the second magnetic valve pipeline, one-way pressure valve pipeline are attempted by on cold-producing medium accumulator tanks and the air-conditioner refrigerating system pipeline.
2. T3 operating mode air-conditioner according to claim 1 is characterized in that: said refrigerant flow adjuster is arranged on the pipeline between first magnetic valve and the two capillary paralleling branch roads.
3. T3 operating mode air-conditioner according to claim 2 is characterized in that: the outside bulb is set on outdoor condenser, and said outside bulb is communicated by letter with the controller of air-conditioner and is connected.
4. T3 operating mode air-conditioner according to claim 3 is characterized in that: the pipeline of said second magnetic valve is inserted into cold-producing medium accumulator tanks bottom section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205253323U CN202328541U (en) | 2011-12-14 | 2011-12-14 | T3 working condition air-conditioner. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205253323U CN202328541U (en) | 2011-12-14 | 2011-12-14 | T3 working condition air-conditioner. |
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| Publication Number | Publication Date |
|---|---|
| CN202328541U true CN202328541U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205253323U Expired - Fee Related CN202328541U (en) | 2011-12-14 | 2011-12-14 | T3 working condition air-conditioner. |
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| Country | Link |
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| CN (1) | CN202328541U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868291A (en) * | 2012-12-14 | 2014-06-18 | 美的集团股份有限公司 | Liquid storage pot for heat exchange system and heat exchange system and air conditioner having same |
| 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 |
| CN106403348A (en) * | 2016-11-28 | 2017-02-15 | 广州华凌制冷设备有限公司 | Air conditioner and refrigeration control method thereof |
| CN108362038A (en) * | 2018-04-20 | 2018-08-03 | 湖南省浏阳市择明热工器材有限公司 | A kind of air source heat pump with winter in summer two-way regulating function |
| CN110779161A (en) * | 2019-11-18 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Control method and device for compressor overload protection and air conditioner |
-
2011
- 2011-12-14 CN CN2011205253323U patent/CN202328541U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868291A (en) * | 2012-12-14 | 2014-06-18 | 美的集团股份有限公司 | Liquid storage pot for heat exchange system and heat exchange system and air conditioner having same |
| CN103868291B (en) * | 2012-12-14 | 2016-05-18 | 美的集团股份有限公司 | For the fluid reservoir of heat-exchange system and there is its heat-exchange system and air-conditioner |
| 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 |
| CN106403348A (en) * | 2016-11-28 | 2017-02-15 | 广州华凌制冷设备有限公司 | Air conditioner and refrigeration control method thereof |
| CN108362038A (en) * | 2018-04-20 | 2018-08-03 | 湖南省浏阳市择明热工器材有限公司 | A kind of air source heat pump with winter in summer two-way regulating function |
| CN110779161A (en) * | 2019-11-18 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Control method and device for compressor overload protection and air conditioner |
| CN110779161B (en) * | 2019-11-18 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Control method and device for compressor overload protection and air conditioner |
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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: 20120711 Termination date: 20201214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |