CN104314790A - Liquid spray device for air return pipe of compressor - Google Patents
Liquid spray device for air return pipe of compressor Download PDFInfo
- Publication number
- CN104314790A CN104314790A CN201410552847.0A CN201410552847A CN104314790A CN 104314790 A CN104314790 A CN 104314790A CN 201410552847 A CN201410552847 A CN 201410552847A CN 104314790 A CN104314790 A CN 104314790A
- Authority
- CN
- China
- Prior art keywords
- compressor
- return air
- pipe
- air pipe
- compressor return
- 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.)
- Granted
Links
Landscapes
- Compressor (AREA)
Abstract
The invention discloses a liquid spray device for an air return pipe of a compressor. The liquid spray device comprises a liquid spray coil, a compressor air return pipe, a compressor, a capillary pipe, a filter and an electromagnetic valve, wherein the liquid spray coil is wound outside the compressor air return pipe, and is attached to the outer circular surface of the compressor air return pipe; one end of the liquid spray coil straightly passes through upper and lower flange holes in the compressor air return pipe from top to bottom, and the end part is sealed; the pipe wall of the liquid spray coil positioned in the compressor air return pipe is provided with one or more jet holes; the directions of the one or more jet holes are opposite to the air return direction of the compressor; the other end of the liquid spray coil is connected with one end of the capillary pipe; the other end of the capillary pipe is connected with the filter and the electromagnetic valve in sequence. The liquid spray device is mainly applied to large-sized liquid chillers and large-sized air conditioners, and generally requires a compact space and high reliability. Meanwhile, compressor return air can be rapidly cooled by using refrigerants in heat transfer and control parts under the special situations of high temperature, high load and the like, so that overheat is avoided.
Description
Technical field
The present invention relates to refrigeration technology field, specifically a kind of compressor return air pipe liquid-jet device.
Background technique
Large Scale Cold liquid machine or air-conditioning obtain fast development in recent years, and its product function, performance index, control technique and safety protection etc. constantly promote thereupon.At present, Large Scale Cold liquid machine or air-conditioning are widely used in the industries such as power electronics, military affairs and aviation, power station, Laser Equipment, cabinet-type air conditioner cooling, semiconductor equipment and supercomputer.Special in vehicle-mounted, carrier-borne cold liquid machine or field of air conditioning, under usually requiring little in boundary dimension of lightweight prerequisite, very strong environmental suitability and very wide operating range be had.Such as, in the face of high-temperature high-load condition, compressor in cold liquid machine or air-conditioning is in hard service usually, the factor such as need to control delivery temperature, suction temperature, high-low pressure, oil pressure difference and motor overload is overheated, in the operating range allowing compressor be in bear, 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 lubricant oil carbonization, and suction temperature depends on evaporating temperature and the degree of superheat when system cloud gray model, suction temperature generally can not be caused too high at normal temperature environment, but often occur when hot environment, high load.For this reason, common way 1. increases bypass solenoid valve, hydrojet expansion valve and connecting tube to the direct Liquid injection cooling of muffler, and arrange larger gas-liquid separator etc. simultaneously, can take larger space, reliability also can decline; 2. increase return-air heat exchanger, the latus rectum being generally greater than the compressor return air pipe of 100kW is how comparatively large, can take larger space equally when realizing.
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, crosses heat control to realize compressor return air.
Technological 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 tube, filter and solenoid 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, it is upper that one end of hydrojet coil pipe cuts across on described compressor return air pipe from top to down, lower flanging bore, and end part seal, the tube wall being positioned at the hydrojet coil pipe of described compressor return air pipe is provided with one or more spray-hole, described one or more spray-hole towards the return-air direction contrary with described compressor, the other end of described hydrojet coil pipe is connected with one end of described capillary tube, and the other end of described capillary tube is connected with solenoid valve with described filter successively.
Described compressor return air pipe liquid-jet device, is characterized in that: the axial direction of described one or more spray-hole and described compressor return air pipe forms the angle of attack of 30 ° ~ 45 °.
Described compressor return air pipe liquid-jet device, it is characterized in that: the entry end of described solenoid valve connects from condensed liquid refrigerant, the outlet end of solenoid valve is connected with the entry end of described filter, the outlet end of filter is connected with the entry end of described capillary tube, the entry end of the outlet end hydrojet coil pipe of described capillary tube is connected, and each tie point passes through welded seal.
Described compressor return air pipe liquid-jet device, it is characterized in that: described hydrojet coil pipe is the circle of pipe with small pipe diameter or oblate copper tube, the periphery of described compressor return air pipe is close to by welding or other compression mode, multiple spray-holes on it are generally 2 ~ 4, and uniform by the angle of attack conical surface formed, 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 slenderness ratio 3 ~ 10.
From workflow, when compressor return air occurs overheated, solenoid valve is opened, liquid refrigerant after autocondensation in the future, after capillary-compensated step-down, obtains the refrigeration agent 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 managing carrying out from evaporator drier.Refrigeration agent is through part heat exchange in hydrojet coil pipe, and forming section gasifies, and decreases the phase variable in muffler.With there is no hydrojet coil pipe, be directly injected 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 heat transfer requirements of the length of phase transformation section and interior wing form foundation tube wall carries out, and wherein slenderness ratio (ratio of L/D) is usually 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 through hydrojet coil pipe and can welded seal.
During normal temperature, this device is inoperative, the same with traditional design, and refrigeration system is run and needed certain degree of superheat design, guarantees compressor not liquid hammer; When high temperature return-air occurs overheated, this device is opened.For meeting Large Scale Cold liquid machine or air-conditioning miniature requirement, time in the design, can liquid/gas separator of cooling down be removed, at this moment needing higher heat control excessively.As designed by wing in phase transformation section is strengthened, improve tube wall heat exchange cooling, but be not to have interior wing to strengthen.
Beneficial effect of the present invention:
1, the present invention is when compressor return air is overheated, has dual-cooled effect, strengthening cooling effect.
2, after cancellation gas-liquid separator, the present invention is adopted can to play overheated effective control, and without negative effect.
3, compact structure of the present invention, except a solenoid valve needs exterior fixing, takes up space hardly.
4, the capillary tube in the present invention replaces hydrojet expansion valve, and reliability is higher.
5, the present invention has lightweight, that realization is easy, cost is low feature.
Accompanying drawing explanation
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 sectional view.
Embodiment
See 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 tube 4, filter 5 and solenoid 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 Hand of spiral of hydrojet coil pipe 1 and the return-air direction contrary of compressor 3, it is upper that one end of hydrojet coil pipe 1 cuts across on compressor return air pipe 2 from top to down, lower flanging bore, and end part seal, the tube wall being positioned at the hydrojet coil pipe 1 of compressor return air pipe 2 is provided with one or more spray-hole 7, one or more spray-hole 7 towards the return-air direction contrary with compressor 3, the other end of hydrojet coil pipe 1 is connected with one end of capillary tube 4, and the other end of capillary tube 4 is connected with solenoid valve 6 with filter 5 successively.
In the present invention, one or more spray-hole 7 and the axial direction of compressor return air pipe 2 form the angle of attack α of 30 ° ~ 45 °.
The entry end of solenoid valve 6 connects from condensed liquid refrigerant, the outlet end of solenoid valve 6 is connected with the entry end of filter 5, the outlet end of filter 5 is connected with the entry end of capillary tube 4, the entry end of the outlet end hydrojet coil pipe 1 of capillary tube 4 is connected, and each tie point passes through welded seal.
Hydrojet coil pipe 1 is the circle of pipe with small pipe diameter (d ≈ Ф 5 ~ Ф 9) or oblate copper tube, the periphery of compressor return air pipe 2 is close to by welding or other compression mode, multiple spray-holes on it are generally 2 ~ 4, and uniform by the angle of attack conical surface formed, 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 heat transfer requirements of the length of phase transformation section and interior wing form foundation tube wall carries out, and wherein slenderness ratio (ratio of L/D) is usually 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 through hydrojet coil pipe 1 and can welded seal.
For meeting Large Scale Cold liquid machine or air-conditioning miniature requirement, if remove liquid/gas separator of cooling down, tube wall heat exchange cooling and the gas-liquid injected cool double action but of this device should be strengthened.As strengthened wing design in phase transformation section, adjustment spray-hole quantity etc.
The internal diameter of capillary tube 4 is Ф 1.2 ~ Ф 2.0, and concrete size requires with satisfied cooling and determines.
Filter 5 should be provided with rational order number, and to meet capillary tube 4 not by dirty stifled, its order number is generally 100 ~ 150 orders.
Solenoid valve 6 should be normally off, and when needing, energising is opened.
Each pipeline in device connects for gas welding, but can be not limited thereto.
Claims (5)
1. a compressor return air pipe liquid-jet device, include hydrojet coil pipe, compressor return air pipe, compressor, capillary tube, filter and solenoid 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, it is upper that one end of hydrojet coil pipe cuts across on described compressor return air pipe from top to down, lower flanging bore, and end part seal, the tube wall being positioned at the hydrojet coil pipe of described compressor return air pipe is provided with one or more spray-hole, described one or more spray-hole towards the return-air direction contrary with described compressor, the other end of described hydrojet coil pipe is connected with one end of described capillary tube, and the other end of described capillary tube is connected with solenoid valve with described filter successively.
2. compressor return air pipe liquid-jet device according to claim 1, is characterized in that: the axial direction of described one or more spray-hole and described compressor return air pipe forms the angle of attack of 30 ° ~ 45 °.
3. compressor return air pipe liquid-jet device according to claim 1, it is characterized in that: the entry end of described solenoid valve connects from condensed liquid refrigerant, the outlet end of solenoid valve is connected with the entry end of described filter, the outlet end of filter is connected with the entry end of described capillary tube, the entry end of the outlet end hydrojet coil pipe of described capillary tube is connected, 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: described hydrojet coil pipe is the circle of pipe with small pipe diameter or oblate copper tube, the periphery of described compressor return air pipe is close to by welding or other compression mode, multiple spray-holes on it are generally 2 ~ 4, and uniform by the angle of attack conical surface formed, 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 can be fin structure in screw type height, its slenderness 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 true CN104314790A (en) | 2015-01-28 |
| CN104314790B CN104314790B (en) | 2016-05-25 |
Family
ID=52370081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410552847.0A Active CN104314790B (en) | 2014-10-17 | 2014-10-17 | Compressor return air pipe liquid-jet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314790B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200891A (en) * | 1993-01-07 | 1994-07-19 | Matsushita Refrig Co Ltd | Compressor |
| JPH112474A (en) * | 1997-06-11 | 1999-01-06 | Toshiba Corp | Cooling device |
| CN1864037A (en) * | 2003-11-20 | 2006-11-15 | 穆丹制造公司 | Co2 cooling system |
| CN2932235Y (en) * | 2006-06-07 | 2007-08-08 | 上海日立电器有限公司 | Air-conditioning system and compressor |
| US7770405B1 (en) * | 2005-01-11 | 2010-08-10 | Ac Dc, Llc | Environmental air control system |
| CN102052281A (en) * | 2009-10-30 | 2011-05-11 | 惠而浦股份有限公司 | A cooling system for reciprocating compressors and a reciprocating compressor |
| 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 |
-
2014
- 2014-10-17 CN CN201410552847.0A patent/CN104314790B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200891A (en) * | 1993-01-07 | 1994-07-19 | Matsushita Refrig Co Ltd | Compressor |
| JPH112474A (en) * | 1997-06-11 | 1999-01-06 | Toshiba Corp | Cooling device |
| CN1864037A (en) * | 2003-11-20 | 2006-11-15 | 穆丹制造公司 | 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 |
| CN102052281A (en) * | 2009-10-30 | 2011-05-11 | 惠而浦股份有限公司 | A cooling system for reciprocating compressors and a reciprocating compressor |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104314790B (en) | 2016-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018072510A1 (en) | Heat recovery system for air conditioner | |
| CN201944952U (en) | Air conditioner with subcooler | |
| CN203375758U (en) | Refrigerating cycle system | |
| CN103499162A (en) | Low-temperature air-cooled screw cold and hot water unit | |
| CN100580345C (en) | Secondary throttle recooling device of air conditioner | |
| CN102759147B (en) | Air-conditioning multiple on-line system | |
| WO2016021141A1 (en) | Evaporator | |
| CN111351290A (en) | Domestic ultra-low temp refrigerator | |
| CN106969558A (en) | The heat-exchange method of refrigeration system and refrigeration system | |
| CN204283792U (en) | Compressor return air pipe liquid-jet device | |
| JP5385800B2 (en) | Gas-liquid separation type refrigeration equipment | |
| CN104697232A (en) | A heat pump system | |
| CN204665732U (en) | A kind of refrigeration system | |
| CN114719507B (en) | Vortex refrigerating device applied to refrigerator, refrigerator and using method of vortex refrigerating device | |
| CN104314790B (en) | Compressor return air pipe liquid-jet device | |
| EP3945266B1 (en) | Refrigeration system and control method therefor | |
| CN104807243B (en) | A kind of refrigerating plant | |
| CN109974322B (en) | Double-temperature-zone single-stage refrigerating system with expander | |
| CN102305501B (en) | Nozzle throttling device of air conditioner | |
| CN202598939U (en) | Refrigerating unit | |
| CN202885370U (en) | Air-conditioning system | |
| EP4080141A1 (en) | Flash tank economizer and air conditioning system | |
| US20120301268A1 (en) | Supersonic Cooling With Pulsed Inlet and Bypass Loop | |
| CN102425971B (en) | Heat exchanger tube with staggered fins as well as manufacturing method and application of heat exchange tube | |
| US20120000240A1 (en) | Refrigerant cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |