CN101493274A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN101493274A CN101493274A CNA2009100142745A CN200910014274A CN101493274A CN 101493274 A CN101493274 A CN 101493274A CN A2009100142745 A CNA2009100142745 A CN A2009100142745A CN 200910014274 A CN200910014274 A CN 200910014274A CN 101493274 A CN101493274 A CN 101493274A
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Abstract
The invention discloses an air conditioner, comprising a throttling device. The throttling device is provided with a cooling capillary tube and a heating capillary tube, the heating capillary tube is parallelly connected with a one-way valve and then serially connected with the cooling capillary tube, the direction of the one-way valve is the same with the flow direction of the refrigerant in the cooling capillary tube; the throttling device also comprises at least one auxiliary heating throttling branch which is provided with an auxiliary heating capillary tube and a controllable valve connected with each other in parallel; the heating capillary tube is serially connected with the auxiliary heating capillary tube branch and then parallelly connected with the one-way valve. By adopting the invention, the air conditioner can improve the low temperature heating performance under the prerequisite of satisfying the cooling and heating performance of the air conditioner at the same time.
Description
Technical field
The present invention relates to a kind of air-conditioner, specifically, relate to a kind of air-conditioner that can improve the low-temperature heating performance, belong to the air-conditioner technical field.
Background technology
Air-conditioner low-temperature heating performance is one of important indicator of air conditioner, also is one of difficult point.When outdoor temperature was very low, the difference of evaporating temperature and outdoor temperature was less, evaporimeter heat exchange property variation.In the case, the multiplication of voltage of condensing pressure and evaporating pressure (being the ratio of condensing pressure and evaporating pressure) though very big,, condensing pressure is relatively low, condensation temperature is lower, and is less with the indoor temperature difference, the condenser heat exchange property is also poor.Thereby cause in the air conditioner chamber leaving air temp lower, heating performance is relatively poor, and human body comfort is very poor.Therefore, in order to improve the cryogenic refrigeration performance, the condensing pressure in the time of should improving low-temperature heating as far as possible further increases multiplication of voltage.
What general fixed frequency air conditioner device adopted is the capillary fixed restriction.Capillary mainly be by its caliber and length control liquid refrigerant flow so that evaporimeter can under suitable situation, work, its basic principle is to make high pressure liquid refrigerant be forced to flow through a little overflow section, produce suitable local resistance loss (or linear loss), make the refrigerant pressure rapid drawdown, meanwhile a part of liquid refrigerant vaporization, absorb latent heat, make the cold-producing medium after the throttling become the low-pressure low-temperature state.Along with growth capillaceous, the multiplication of voltage of condensing pressure and evaporating pressure is reducing, and pressure at expulsion is increasing, the corresponding increase of condensing pressure, and condensation temperature improves, and heating capacity increases.Yet, needing to satisfy simultaneously refrigeration and heating performance for the air conditioner that adopts the capillary fixed restriction, the raising of condensing pressure is subject to performance parameters such as refrigerating capacity, Energy Efficiency Ratio, maximum running refrigerating, maximum operation heat.So, can not make capillary long in order to improve condensing pressure.Transducer air conditioning is lower than when subzero in outdoor temperature, heating capacity can reach more than 80% of specified heating capacity, and adopting the fixed frequency air conditioner device of capillary fixed restriction generally to have only about 45% of specified heating capacity, all there is the bad complaint of heating effect in homemade main famous brand air-conditioner on the market.
Summary of the invention
The present invention is directed to the problems referred to above of the air conditioner existence of available technology adopting capillary fixed restriction, a kind of air-conditioner is provided, satisfy at the same time under the prerequisite of air-conditioner refrigeration and heating performance, improved the low-temperature heating performance of air-conditioner.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of air-conditioner, comprise throttling arrangement, described throttling arrangement has refrigerating capillary and heats capillary, describedly connect with described refrigerating capillary again after heating capillary paralleling one check valve, in the direction of described check valve and the described refrigerating capillary cold-producing medium flow to identical, it is characterized in that described throttling arrangement also comprises the auxiliary throttling branch road that heats at least one road, describedly auxiliaryly heat the throttling branch road and have auxiliary capillary and the controlled valve of heating parallel with one another; Described heat capillary series connection described auxiliary heat behind the capillary branch road in parallel with described check valve again.
According to the present invention, describedly auxiliary heat the throttling branch road and be preferably one the tunnel.
According to the present invention, the length of described refrigerating capillary is 150-1700mm, and described to heat length capillaceous be 100-900mm, and described auxiliary to heat length capillaceous be 50-700mm.
According to the present invention, described controlled valve is a magnetic valve.
Compared with prior art, advantage of the present invention and good effect are:
1. owing to increased the auxiliary capillary that heats, when under the low situation of outdoor temperature, heating, close controlled valve, make and auxiliaryly to heat capillary and to heat capillary and connect, thereby make that heating capillary fully extends, improve condensing pressure to greatest extent, and then improved condensation temperature, improved low-temperature heating capacity significantly.The low-temperature heating capacity of air-conditioner of the present invention auxiliaryly heats heating capacity of air conditioner capillaceous and can improve 22% at most than not using.
2. owing to auxiliary heat capillary and can pass through the controlled valve bypass, refrigerating capillary and to heat capillary normally all be independent, so specified refrigeration and specified heating can both be carried out optimization simultaneously and regulated, adjusting is accurate, cost is lower; Simultaneously also be easy to satisfy performance parameters such as the maximum running refrigerating of air-conditioner, maximum operation heat, improve the overall performance of air-conditioner.
Description of drawings
Fig. 1 is the structural representation of an embodiment of air-conditioner of the present invention;
Fig. 2 is the structural representation of another embodiment of air-conditioner of the present invention.
Among the figure, 1, off-premises station; 2, compressor; 3, indoor set; 4, throttling arrangement; 41, refrigerating capillary; 42, check valve; 43, heat capillary; 44, magnetic valve; 45, the auxiliary capillary that heats; 46, magnetic valve; 47, the auxiliary capillary that heats.
The specific embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
See also the structural representation of an embodiment of the described air-conditioner of the present invention of Fig. 1.Described air-conditioner comprises off-premises station 1, compressor 2, indoor set 3 and throttling arrangement 4, and each several part connects successively, forms the closed circuit of cold-producing medium.Described throttling arrangement 4 also has a routing electromagnet valve 44 and heats the auxiliary throttling branch road that heats that capillary 45 composes in parallel with assisting except that having refrigerating capillary 41 and heating the capillary 42.Described heat capillary 43 series connection described auxiliary heat the throttling branch road after, in parallel with described check valve 42 again, and then connect the capillary-compensated device of formation air-conditioner with described refrigerating capillary 41.Wherein, in the direction of described check valve 42 and the described refrigerating capillary cold-producing medium flow to identical.
Utilize above-mentioned throttling arrangement, air-conditioner is when refrigeration, and cold-producing medium is only by refrigerating capillary 41 and check valve 42.When air-conditioner normally heated, air conditioner control system control magnetic valve 44 was opened, the cold-producing medium magnetic valve of flowing through earlier, and then through heating capillary 43 and refrigerating capillary 41 to off-premises station 1.And when air-conditioner heated under low temperature condition, air conditioner control system control magnetic valve 44 cut out, the cold-producing medium that flows out from the indoor set 3 auxiliary capillary 45 that heats of flowing through earlier, and then through refrigerating capillary 43 and refrigerating capillary 41 to off-premises station 1.Like this, when freezing and normally heating, the capillary pipe length that cold-producing medium is flowed through does not change, and does not influence the performance parameter of air-conditioner; And when low-temperature heating, the length lengthening capillaceous that cold-producing medium is flowed through makes condensing pressure increase, and the temperature of condensation raises, thereby has increased heating capacity, has improved the low-temperature heating effect of air-conditioner.Air-conditioner refrigeration, heat and during low-temperature heating, details are as follows for the cyclic process of cold-producing medium and state:
During refrigerating operaton, high temperature and high pressure gas from the exhaust outlet of compressor 2 to off-premises station 1, the high pressure low temperature subcooled liquid that comes out through off-premises station 1 passes through the less vapour-liquid two-phase refrigerant of dutycycle that refrigerating capillary 41 becomes low-pressure low-temperature, become low-pressure low-temperature gas through check valve 42 and indoor set 3, arrive compressor 2 mufflers again.
During heating operation, because check valve 42 is reverse, the cold-producing medium check valve 42 of can not flowing through, and magnetic valve 44 is opened, with described auxiliary capillary 45 short circuits that heat, therefore, refrigerant flow direction is: high temperature and high pressure gas from the exhaust outlet of compressor 2 to indoor set 3, the high pressure low temperature subcooled liquid that comes out through indoor set 3, through magnetic valve 44, heat capillary 43 and refrigerating capillary 41 becomes the less vapour-liquid two-phase refrigerant of low-pressure low-temperature dutycycle, become low-pressure low-temperature gas through off-premises station 1 again and get back to compressor 2 mufflers.
Outdoor temperature is lower than and equals-2 ℃ and heat when being low-temperature heating, close magnetic valve 44, high temperature and high pressure gas from the exhaust outlet of compressor 2 to indoor set 3, the high pressure low temperature subcooled liquid that comes out through indoor set 3, through auxiliary heating capillary 45, heating capillary 43 and refrigerating capillary 41 becomes the less vapour-liquid two-phase refrigerant of low-pressure low-temperature dutycycle, get back to the compressor return air pipe after becoming low-pressure low-temperature gas through off-premises station 1 again.
In described embodiment, the heating capacity of air-conditioner is 3500W, and refrigerating capillary 41 is the capillary of φ 1.7 * 900mm, heats the capillary that capillary 42 adopts φ 1.4 * 300mm, heats the capillary that capillary 45 also adopts φ 1.4 * 300mm and assist.
Certainly, above-mentioned each length capillaceous can suitably be regulated within the specific limits according to actual air-conditioner parameter and environment for use.For example, the length range of described refrigerating capillary is 150-1700mm, and described to heat length range capillaceous be 100-900mm, and described auxiliary to heat length range capillaceous be 50-700mm.
Fig. 2 is described for the structural representation of another embodiment of air-conditioner of the present invention, this embodiment is on basis embodiment illustrated in fig. 1, increased by a routing electromagnet valve 46 again and heated the auxiliary throttling branch road that heats that capillary 47 composes in parallel with auxiliary, all the other structures are identical with embodiment one.The operation principle of this embodiment air-conditioner and the course of work and embodiment one are similar, no longer repeat.
Certainly; the above only is a kind of preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1, a kind of air-conditioner, comprise throttling arrangement, described throttling arrangement has refrigerating capillary and heats capillary, describedly connect with described refrigerating capillary again after heating capillary paralleling one check valve, in the direction of described check valve and the described refrigerating capillary cold-producing medium flow to identical, it is characterized in that described throttling arrangement also comprises the auxiliary throttling branch road that heats at least one road, describedly auxiliaryly heat the throttling branch road and have auxiliary capillary and the controlled valve of heating parallel with one another; Described heat capillary series connection described auxiliary heat behind the capillary branch road in parallel with described check valve again.
2, air-conditioner according to claim 1 is characterized in that, described auxiliary to heat the throttling branch road be one the tunnel.
3, air-conditioner according to claim 2 is characterized in that, the length of described refrigerating capillary is 150-1700mm.
4. air-conditioner according to claim 2 is characterized in that, described to heat length capillaceous be 100-900mm.
5, air-conditioner according to claim 2 is characterized in that, described auxiliary to heat length capillaceous be 50-700mm.
According to each described air-conditioner in the claim 1 to 5, it is characterized in that 6, described controlled valve is a magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100142745A CN101493274A (en) | 2009-02-17 | 2009-02-17 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100142745A CN101493274A (en) | 2009-02-17 | 2009-02-17 | Air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN101493274A true CN101493274A (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100142745A Pending CN101493274A (en) | 2009-02-17 | 2009-02-17 | Air conditioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288026A (en) * | 2016-09-23 | 2017-01-04 | 广东志高暖通设备股份有限公司 | A kind of air-conditioner outdoor unit and throttling arrangement thereof |
| CN106546039A (en) * | 2017-02-06 | 2017-03-29 | 刘勇 | Suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear |
| CN107036343A (en) * | 2017-05-19 | 2017-08-11 | 海信（山东）空调有限公司 | Throttle regulator control system, air conditioner and throttling regulation and control method |
| CN110500740A (en) * | 2019-08-22 | 2019-11-26 | Tcl空调器(中山)有限公司 | Air-conditioner with fixed frequency and its control method, control device and storage medium |
| CN112050430A (en) * | 2019-06-05 | 2020-12-08 | 青岛海尔空调器有限总公司 | Control method and device for fixed-frequency air conditioner and fixed-frequency air conditioner |
-
2009
- 2009-02-17 CN CNA2009100142745A patent/CN101493274A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288026A (en) * | 2016-09-23 | 2017-01-04 | 广东志高暖通设备股份有限公司 | A kind of air-conditioner outdoor unit and throttling arrangement thereof |
| CN106546039A (en) * | 2017-02-06 | 2017-03-29 | 刘勇 | Suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear |
| CN107036343A (en) * | 2017-05-19 | 2017-08-11 | 海信（山东）空调有限公司 | Throttle regulator control system, air conditioner and throttling regulation and control method |
| CN112050430A (en) * | 2019-06-05 | 2020-12-08 | 青岛海尔空调器有限总公司 | Control method and device for fixed-frequency air conditioner and fixed-frequency air conditioner |
| CN110500740A (en) * | 2019-08-22 | 2019-11-26 | Tcl空调器(中山)有限公司 | Air-conditioner with fixed frequency and its control method, control device and storage medium |
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Open date: 20090729 |