CN104314790B - Compressor return air pipe liquid-jet device - Google Patents
Compressor return air pipe liquid-jet device Download PDFInfo
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- CN104314790B CN104314790B CN201410552847.0A CN201410552847A CN104314790B CN 104314790 B CN104314790 B CN 104314790B CN 201410552847 A CN201410552847 A CN 201410552847A CN 104314790 B CN104314790 B CN 104314790B
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- return air
- air pipe
- compressor return
- pipe
- compressor
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Abstract
The invention discloses a kind of compressor return air pipe liquid-jet device, include hydrojet coil pipe, compressor return air pipe, compressor, capillary, filter and magnetic valve, hydrojet coil pipe is spirally coiled in the outside of compressor return air pipe, and be close on the periphery of compressor return air pipe, one end of hydrojet coil pipe cuts across the upper and lower flanging bore on compressor return air pipe from top to down, and end part seal, the tube wall that is positioned at the hydrojet coil pipe of compressor return air pipe is provided with one or more spray-holes, one or more spray-holes towards with the return-air direction contrary of compressor; The other end of hydrojet coil pipe is connected with one end capillaceous, and the other end capillaceous is connected with magnetic valve with filter successively. The present invention is mainly used in, in Large Scale Cold liquid machine and large-size air conditioning, conventionally requiring space compactness, and reliability is high, in the time running into the special circumstances such as high temperature high load capacity, can utilize and conduct heat and the next quick cooling compressor return-air of control section cold-producing medium simultaneously, and it is overheated to avoid producing.
Description
Technical field
The present invention relates to refrigeration technology field, specifically a kind of compressor return air pipe liquid-jet device.
Background technology
Large Scale Cold liquid machine or air-conditioning have obtained fast development in recent years, and its product function, performance indications, control technology and security protection etc. constantly promote thereupon. At present, Large Scale Cold liquid machine or air-conditioning be widely used in that power electronics, military affairs and aviation, power station, laser equipment, cabinet-type air conditioner are cooling, the industry such as semiconductor equipment and supercomputer. In vehicle-mounted, carrier-borne cold liquid machine or field of air conditioning, conventionally requiring, under little in appearance and size of lightweight prerequisite, have very strong environmental suitability and very wide working range especially. For example, in the face of high temperature high-load condition, compressor in cold liquid machine or air-conditioning is conventionally in hard service, need to control the factors such as the poor and motor overload of delivery temperature, suction temperature, high-low pressure, oil pressure is overheated, allow in the working range of compressor in bearing, guarantee product reliably working. Wherein, the too high meeting of suction temperature causes compressor exhaust temperature too high, motor winding insulation declines, the even unfavorable factor such as lubricating oil carbonization, and suction temperature depends on evaporating temperature and the degree of superheat in the time that system is moved, generally can not cause that at normal temperature environment suction temperature is too high, but in the time of hot environment, high load capacity, tend to occur. For this reason, common way is 1. to increase bypass solenoid valve, hydrojet expansion valve and tube connector to the direct Liquid injection cooling of muffler, and larger gas-liquid separator etc. is set simultaneously, can take larger space, and reliability also can decline; 2. increase return-air heat exchanger, much larger the latus rectum of compressor return air pipe that is generally greater than 100kW is, can take equally larger space while realization.
Summary of the invention
The object of the invention is to solve the deficiency that prior art exists, a kind of compressor return air pipe liquid-jet device of small and exquisite, high reliability operation characteristic is provided, cross thermal control to realize compressor return air.
Technical scheme of the present invention is as follows:
A kind of compressor return air pipe liquid-jet device, include hydrojet coil pipe, compressor return air pipe, compressor, capillary, filter and magnetic valve, it is characterized in that: described hydrojet coil pipe is spirally coiled in the outside of described compressor return air pipe, and be close on the periphery of described compressor return air pipe, one end of hydrojet coil pipe cuts across upper on described compressor return air pipe from top to down, lower flanging bore, and end part seal, the tube wall that is positioned at the hydrojet coil pipe of described compressor return air pipe is provided with one or more spray-holes, described one or more spray-holes towards with the return-air direction contrary of described compressor, the other end of described hydrojet coil pipe is connected with described one end capillaceous, and the described other end capillaceous is connected with magnetic valve with described filter successively.
Described compressor return air pipe liquid-jet device, is characterized in that: the axis direction of described one or more spray-holes and described compressor return air pipe forms the jet angle of 30 °～45 °.
Described compressor return air pipe liquid-jet device, it is characterized in that: the arrival end of described magnetic valve connects from condensed liquid refrigerant, the port of export of magnetic valve is connected with the arrival end of described filter, the port of export of filter is connected with described arrival end capillaceous, the arrival end of described port of export hydrojet coil pipe capillaceous is connected, and each tie point passes through welded seal.
Described compressor return air pipe liquid-jet device, it is characterized in that: the circular or oblate copper tube that described hydrojet coil pipe is pipe with small pipe diameter, be close to the periphery of described compressor return air pipe by welding or other compression mode, multiple spray-holes on it are generally 2～4, and uniform by the jet angle conical surface forming, aperture is Ф 1.5～Ф 2.5.
Described compressor return air pipe liquid-jet device, is characterized in that: the inside of described compressor return air pipe is divided into mixing section, phase transformation section and stable section by function, and wherein phase transformation section inwall can be fin structure in screw type height, its draw ratio 3～10.
Workflow, when compressor return air occurs when overheated, magnetic valve is opened, liquid refrigerant after autocondensation in the future, after capillary-compensated step-down, obtains the cold-producing medium of low-temp low-pressure, part heat absorption in hydrojet coil pipe, and by tube wall heat exchange cooling compressor muffler, the gas-liquid mixed refrigerant of generation, finally from spray-hole ejection, mixes with the superheated vapor mixing section in pipe that carrys out flash-pot. Cold-producing medium is through part heat exchange in hydrojet coil pipe, and forming section gasification, has reduced the phase variable in muffler. With there is no hydrojet coil pipe, directly spray into compressor return air pipe and compare, Len req shortens relatively. For strengthening Local Heat Transfer and injection mixed effect, adopt contrary trend and contrary oblique angle jet tools.
The inside of compressor return air pipe is divided into mixing section, phase transformation section and stable section by function, and wherein mixing section and stable section should be straight tube form, and phase transformation section adopts wing strengthening in screw type height; The length of phase transformation section and interior wing form require to carry out according to the heat exchange of tube wall, and wherein draw ratio (ratio of L/D) is conventionally 3～10; The tube wall of compressor return air pipe is provided with two coaxial upper and lower flanging bores, at mixing section and phase transformation section intersection, and can be through hydrojet coil pipe energy welded seal.
When normal temperature, this device is inoperative, the same with traditional design, and refrigeration system operation need to have certain degree of superheat design, guarantees not liquid hammer of compressor; Occur when overheated at high temperature return-air, this device is opened. For meeting Large Scale Cold liquid machine or air-conditioning miniaturization demand, in design time, can remove the liquid/gas separator of cooling down, at this moment needing has the higher thermal control of crossing. As designed by wing in phase transformation section is strengthened, the heat exchange of raising tube wall is cooling, but is not to have interior wing strengthening.
Beneficial effect of the present invention:
1, the present invention, in the time that compressor return air is overheated, has dual-cooled effect, strengthening cooling effect.
2, cancelling after gas-liquid separator, adopting the present invention can play overheated effective control, and without negative effect.
3, compact conformation of the present invention, except a magnetic valve needs exterior fixing, takes up space hardly.
4, the capillary in the present invention replaces hydrojet expansion valve, and reliability is higher.
5, the present invention has feature lightweight, that realization is easy, cost is low.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural front view of hydrojet coil pipe and compressor return air pipe in the present invention.
Fig. 3 is the structure side view of hydrojet coil pipe and compressor return air pipe in the present invention.
Fig. 4 is that the A-A of Fig. 2 is to structure cutaway view.
Detailed description of the invention
Referring to accompanying drawing, a kind of compressor return air pipe liquid-jet device, include hydrojet coil pipe 1, compressor return air pipe 2, compressor 3, capillary 4, filter 5 and magnetic valve 6, hydrojet coil pipe 1 is spirally coiled in the outside of compressor return air pipe 2, and be close on the periphery of compressor return air pipe 2, the return-air direction contrary of the hand of spiral of hydrojet coil pipe 1 and compressor 3, one end of hydrojet coil pipe 1 cuts across upper on compressor return air pipe 2 from top to down, lower flanging bore, and end part seal, the tube wall that is positioned at the hydrojet coil pipe 1 of compressor return air pipe 2 is provided with one or more spray-holes 7, one or more spray-holes 7 towards with the return-air direction contrary of compressor 3, the other end of hydrojet coil pipe 1 is connected with one end of capillary 4, and the other end of capillary 4 is connected with magnetic valve 6 with filter 5 successively.
In the present invention, one or more spray-holes 7 form the jet angle α of 30 °～45 ° with the axis direction of compressor return air pipe 2.
The arrival end of magnetic valve 6 connects from condensed liquid refrigerant, the port of export of magnetic valve 6 is connected with the arrival end of filter 5, the port of export of filter 5 is connected with the arrival end of capillary 4, the arrival end of the port of export hydrojet coil pipe 1 of capillary 4 is connected, and each tie point passes through welded seal.
Hydrojet coil pipe 1 is the circular or oblate copper tube of pipe with small pipe diameter (d ≈ Ф 5～Ф 9), be close to the periphery of compressor return air pipe 2 by welding or other compression mode, multiple spray-holes on it are generally 2～4, and uniform by the jet angle conical surface forming, and aperture is Ф 1.5～Ф 2.5.
The inside of compressor return air pipe 2 is divided into mixing section, phase transformation section and stable section by function, and wherein mixing section and stable section should be straight tube form, and phase transformation section adopts wing strengthening in screw type height; The length of phase transformation section and interior wing form require to carry out according to the heat exchange of tube wall, and wherein draw ratio (ratio of L/D) is conventionally 3～10; The tube wall of compressor return air pipe 2 is provided with two coaxial upper and lower flanging bores, at mixing section and phase transformation section intersection, and can be through hydrojet coil pipe 1 energy welded seal.
For meeting Large Scale Cold liquid machine or air-conditioning miniaturization demand, if remove the liquid/gas separator of cooling down, should strengthen the cooling and gas-liquid injected cool double action but of the tube wall heat exchange of this device. As strengthen the interior wing design of phase transformation section, adjust spray-hole quantity etc.
The internal diameter of capillary 4 is Ф 1.2～Ф 2.0, and concrete size is determined to meet cooling requirement.
Filter 5 should be provided with rational order number, and to meet capillary 4 not by dirty stifled, its order number is generally 100～150 orders.
Magnetic valve 6 should be normally off, and while needs, energising is opened.
Each pipeline in device is connected to gas welding, but can be not limited to this.
Claims (5)
1. a compressor return air pipe liquid-jet device, include hydrojet coil pipe, compressor return air pipe, compressor, capillary, filter and magnetic valve, it is characterized in that: described hydrojet coil pipe is spirally coiled in the outside of described compressor return air pipe, and be close on the periphery of described compressor return air pipe, one end of hydrojet coil pipe cuts across upper on described compressor return air pipe from top to down, lower flanging bore, and end part seal, the tube wall that is positioned at the hydrojet coil pipe of described compressor return air pipe is provided with one or more spray-holes, described one or more spray-holes towards with the return-air direction contrary of described compressor, the other end of described hydrojet coil pipe is connected with described one end capillaceous, and the described other end capillaceous is connected with magnetic valve with described filter successively.
2. compressor return air pipe liquid-jet device according to claim 1, is characterized in that: the axis direction of described one or more spray-holes and described compressor return air pipe forms the jet angle of 30 °～45 °.
3. compressor return air pipe liquid-jet device according to claim 1, it is characterized in that: the arrival end of described magnetic valve connects from condensed liquid refrigerant, the port of export of magnetic valve is connected with the arrival end of described filter, the port of export of filter is connected with described arrival end capillaceous, the described port of export capillaceous is connected with the arrival end of hydrojet coil pipe, and each tie point passes through welded seal.
4. compressor return air pipe liquid-jet device according to claim 1, it is characterized in that: the circular or oblate copper tube that described hydrojet coil pipe is pipe with small pipe diameter, be close to the periphery of described compressor return air pipe by welding or other compression mode, multiple spray-holes on it are 2～4, and uniform by the jet angle conical surface forming, aperture is Ф 1.5～Ф 2.5.
5. compressor return air pipe liquid-jet device according to claim 1, is characterized in that: the inside of described compressor return air pipe is divided into mixing section, phase transformation section and stable section by function, and wherein phase transformation section inwall is fin structure in screw type height, its draw ratio 3～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410552847.0A CN104314790B (en) | 2014-10-17 | 2014-10-17 | Compressor return air pipe liquid-jet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410552847.0A CN104314790B (en) | 2014-10-17 | 2014-10-17 | Compressor return air pipe liquid-jet device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104314790A CN104314790A (en) | 2015-01-28 |
| CN104314790B true CN104314790B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410552847.0A Active CN104314790B (en) | 2014-10-17 | 2014-10-17 | Compressor return air pipe liquid-jet device |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200891A (en) * | 1993-01-07 | 1994-07-19 | Matsushita Refrig Co Ltd | Compressor |
| JP3432701B2 (en) * | 1997-06-11 | 2003-08-04 | 株式会社東芝 | Cooling system |
| US6848268B1 (en) * | 2003-11-20 | 2005-02-01 | Modine Manufacturing Company | CO2 cooling system |
| US7770405B1 (en) * | 2005-01-11 | 2010-08-10 | Ac Dc, Llc | Environmental air control system |
| CN2932235Y (en) * | 2006-06-07 | 2007-08-08 | 上海日立电器有限公司 | Air-conditioning system and compressor |
| BRPI0904162A2 (en) * | 2009-10-30 | 2011-06-28 | Whirlpool Sa | cooling system for reciprocating and reciprocating compressors |
| CN202648264U (en) * | 2012-06-06 | 2013-01-02 | 海尔集团公司 | Heat regenerator for refrigerator |
| CN204283792U (en) * | 2014-10-17 | 2015-04-22 | 合肥天鹅制冷科技有限公司 | Compressor return air pipe liquid-jet device |
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2014
- 2014-10-17 CN CN201410552847.0A patent/CN104314790B/en active Active
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| CN104314790A (en) | 2015-01-28 |
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