CN101140121A - Capillary throttling set for heat pump machine group - Google Patents
Capillary throttling set for heat pump machine group Download PDFInfo
- Publication number
- CN101140121A CN101140121A CNA2007101331410A CN200710133141A CN101140121A CN 101140121 A CN101140121 A CN 101140121A CN A2007101331410 A CNA2007101331410 A CN A2007101331410A CN 200710133141 A CN200710133141 A CN 200710133141A CN 101140121 A CN101140121 A CN 101140121A
- Authority
- CN
- China
- Prior art keywords
- capillary
- heat pump
- machine group
- pump machine
- throttling set
- 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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Links
- 238000010438 heat treatment Methods 0.000 abstract description 15
- 239000003507 refrigerant Substances 0.000 abstract description 11
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004378 air conditioning Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
Images
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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention relates to a capillary device, which is arranged on a heat pump air conditioning unit with the environmental temperature of over 15 DEG C below zero in the cold area and implements the effective throttle for refrigerant flow; according to the technical scheme of the invention, the capillary throttle device for the heat pump unit comprises two capillary devices in parallel connection, the interior channels of the two capillary devices keep a normally open state, and the capillary device is provided with an opening device for controlling discontinuity of the capillary device. The invention can result in that the heat pump unit normally runs under the high and low temperature heating, and can meet with flow requirements; the unit has safe and reliable operation and improved performance.
Description
Technical field
The present invention relates in the cold district environment temperature is that the capillary device that is used for the flow of refrigerant flow is carried out effective throttling is installed on the heat pump air conditioner unit more than-15 ℃, belongs to the air conditioner energy saving technical field.
Background technology
In order to solve the problem of air source heat pump heating performance deficiency under low temperature environment, at causing its reason of heating capacity decay at low temperatures, various novel heat pumps have been proposed, as band flash vessel heat pump.Compare with the air source heat pump system of routine, after setting up flash vessel, because the existence in tonifying Qi loop makes the refrigerant flow that flows through condenser increase, and can increase the heating capacity of system, effectively improve compression process, helps improving the low-temperature heating performance and the operational reliability of air source heat pump.But in the heat pump of the band flash vessel of prior art, usually adopt electric expansion valve as throttling arrangement, if advance electric expansion valve of flash vessel employing in the process as restricting element owing to heat, and the excursion of environment temperature is bigger, (15 ℃～-4 ℃) need less refrigerant flow when low temperature environment, the refrigerant flow that needs in the time of more than-4 ℃ is bigger, so adopt same electric expansion valve can't satisfy the unit requirement, also do not have to satisfy the big electric expansion valve of adjustable range on the market.Adopt the less electric expansion valve of aperture, normal being suitable for meets the demands when low-temperature heating, just can't satisfy when high temperature heats.Meet the demands when adopting the bigger electric expansion valve high temperature of aperture to heat, throttling weak effect during cold operation can't be regulated and can not meet the demands.And the cost of electric expansion valve is higher.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of capillary throttling set for heat pump machine group that is applicable to that environment temperature is low and the variation of temperature scope is bigger is provided.
According to technical scheme provided by the invention, described capillary throttling set for heat pump machine group, comprise that two-way is the capillary device that is arranged in parallel, two-way capillary device inner passage all keeps normally open, is provided with its discontinuity opening device of control on capillary device.
The discontinuity opening device is the closed type electromagnetic valve device.Capillary device comprises the communicating pipe that capillary bend pipe and two ends thereof connect.The capillary bend pipe is shape or zigzag in the shape of a spiral.
The present invention makes source pump heat and all normally operations of low-temperature heating at high temperature, and can satisfy flow requirements, and unit operation is safe and reliable, and performance is improved.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: capillary throttling set for heat pump machine group, comprise that two-way is the capillary device that is arranged in parallel, two-way capillary device 1,10 inner passages all keep normally open, on capillary device 1, be provided with its discontinuity opening device 2 of control, wherein capillary device 1 and capillary device 10 can be only to be made up of a capillary, also can be some capillaries.
Discontinuity opening device 2 is the closed type electromagnetic valve device.Capillary device 1,10 comprises the communicating pipe 4 that capillary bend pipe 3 and two ends thereof connect, and this communicating pipe 4 both can be a capillary, also can be general pipeline.Capillary bend pipe 3 is shape or zigzag in the shape of a spiral.
The present invention regulates the flow that enters flash vessel inlet tube 5 inner refrigerants by the capillary device 1,10 that two-way is arranged in parallel; On a large amount of experiment basis, can draw environment temperature-4 ℃ opens and the critical-temperature of closing as magnetic valve, when environment temperature during greater than-4 ℃ discontinuity opening device 2 (closed type electromagnetic valve devices) open, at this moment unit needs bigger refrigerant flow, obtain big heating capacity, during simultaneously less than-4 ℃, required refrigerant flow reduces, for obtaining big heating capacity and coefficient of performance of refrigerating (COP) value, valve cuts out.Can satisfy simultaneously that high temperature heats and low-temperature heating.
Because the present invention has adopted above-mentioned technical scheme, when source pump heats, the high pressure refrigerant liquid of coming out from reservoir enters in the inlet tube 5 of flash vessel through behind this throttling arrangement, be divided into two-way, one the tunnel is that gas supplementing opening to compressor carries out tonifying Qi, one the tunnel is that the heat of absorbing environmental becomes gas and sucked by compressor in the evaporimeter, the discontinuity opening device 2 of connecting with capillary device 10 (closed type magnetic valve) is only just opened under the situation of energising, when temperature point detects environment temperature 〉=-4 ℃ opening of valves, refrigerant flow becomes big tonifying Qi pressure and also becomes big, the flash distillation amount that is obtained also becomes big, compare with traditional compressor, the heating capacity of this moment will become big, so open discontinuity opening device 2 (closed type magnetic valve) this moment, the capillary device 1 that makes two-way be to be arranged in parallel, 10 all open and are used for sending into cold-producing medium to the inlet tube 5 of flash vessel.When environment temperature was low, the cold-producing medium that unit needs reduced, and closed electromagnetic valve should be kept identical tonifying Qi pressure if having only capillary device 1 often to open and send into cold-producing medium to the inlet tube 5 of flash vessel this moment.And the gas supplementing opening of compressor can be with liquid, causes Wet Compression to damage compressor.Heating capacity reduces, and power increases.So by the open and close of magnetic valve, regulate the break-make of capillary device 10, regulate the flow of cold-producing medium.Can satisfy the higher COP value of heating capacity that acquisition is big under high temperature and the low temperature environment temperature simultaneously by this throttling arrangement.
The present invention can use in the bigger warm pump assembly of low ring of any ambient temperature range, heat when using in the process at heat pump, pass through this novel throttling device from the high pressure refrigerant liquid that reservoir comes out, path and the parallel capillary tube device 1 of regulating capillary device 10 by the unlatching of discontinuity opening device 2 (closed type magnetic valve) when environment temperature 〉=-4 ℃ carry out throttling simultaneously, thereby obtain the tonifying Qi pressure of an optimum, with maximum heating capacity and the COP value under this pressure, closed electromagnetic valve when environment temperature is lower than-4 ℃, capillary device 10 opens circuit at this moment owing to discontinuity opening device 2 (closed type magnetic valve), have only capillary device 1 to carry out the flow that cold-producing medium is controlled in throttling, obtain the tonifying Qi pressure of an optimum, with maximum heating capacity and the COP value under this pressure.Guaranteeing that unit operation is safe and reliable, under the prerequisite of stable performance, path by a certain capillary device of parallel capillary tube with open circuit, the flow of regulating cold-producing medium reaches the effect of throttling, thereby the acquisition Optimum Matching is to realize by the discontinuity opening device 2 (closed type magnetic valve) of connecting with capillary.
Claims (4)
1. capillary throttling set for heat pump machine group, it is characterized in that: comprise that two-way is the capillary device that is arranged in parallel, two-way capillary device (1), (10) inner passage all keep normally open, are provided with its discontinuity opening device (2) of control on capillary device (1).
2. capillary throttling set for heat pump machine group as claimed in claim 1 is characterized in that: discontinuity opening device (2) is the closed type electromagnetic valve device.
3. capillary throttling set for heat pump machine group as claimed in claim 1 is characterized in that: capillary device (1) comprises the communicating pipe (4) that capillary bend pipe (3) and two ends thereof connect.
4. capillary throttling set for heat pump machine group as claimed in claim 3 is characterized in that: capillary bend pipe (3) is shape or zigzag in the shape of a spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101331410A CN101140121A (en) | 2007-09-30 | 2007-09-30 | Capillary throttling set for heat pump machine group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101331410A CN101140121A (en) | 2007-09-30 | 2007-09-30 | Capillary throttling set for heat pump machine group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101140121A true CN101140121A (en) | 2008-03-12 |
Family
ID=39192173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101331410A Pending CN101140121A (en) | 2007-09-30 | 2007-09-30 | Capillary throttling set for heat pump machine group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101140121A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800440A (en) * | 2018-06-19 | 2018-11-13 | 广东美的制冷设备有限公司 | Air conditioner and its control method |
| CN112432382A (en) * | 2020-12-10 | 2021-03-02 | 珠海格力电器股份有限公司 | Heat pump unit and control method thereof |
| CN112856588A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
| CN112856866A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Throttling element, throttling liquid-separating assembly and air conditioner indoor unit |
-
2007
- 2007-09-30 CN CNA2007101331410A patent/CN101140121A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800440A (en) * | 2018-06-19 | 2018-11-13 | 广东美的制冷设备有限公司 | Air conditioner and its control method |
| CN108800440B (en) * | 2018-06-19 | 2020-09-25 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
| CN112432382A (en) * | 2020-12-10 | 2021-03-02 | 珠海格力电器股份有限公司 | Heat pump unit and control method thereof |
| CN112856588A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
| CN112856866A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Throttling element, throttling liquid-separating assembly and air conditioner indoor unit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080312 |