CN106679227A - Spraying refrigerating circulation system with automatic oil return function - Google Patents
Spraying refrigerating circulation system with automatic oil return function Download PDFInfo
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- CN106679227A CN106679227A CN201510756138.9A CN201510756138A CN106679227A CN 106679227 A CN106679227 A CN 106679227A CN 201510756138 A CN201510756138 A CN 201510756138A CN 106679227 A CN106679227 A CN 106679227A
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- oil return
- compressor
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- vaporizer
- liquid separator
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Abstract
A spraying refrigerating circulation system with an automatic oil return function comprises a sprayer, an evaporator, a gas-liquid separator, an atomizer and a compressor; the sprayer, the evaporator, the gas-liquid separator, the atomizer and the compressor are connected through a pipeline, in an oil return mode, a liquid refrigerating fluid containing lubricating oil comes out of the evaporator and enters the atomizer to be atomized, and a liquid refrigerant containing the atomized lubricating oil is inhaled by the sprayer; and two phases of driven flow refrigerants are mixed through the sprayer, the atomized lubricating oil and a gaseous refrigerating fluid form a aerosol shape and enter the gas-liquid separator, and after an aerosol matter is processed by the gas-liquid separator, and the atomized lubricating oil returns to the compressor along with the gaseous refrigerating fluid in the gas-liquid separator. Thus, when the system is maintained in a normal working state, continuously-automatic oil return is achieved, and meanwhile liquid impacting on the compressor is avoided.
Description
Technical field
The invention belongs to refrigeration air-conditioner and art of heat pumps, and in particular to a kind of spray with automatic oil return function
Penetrate cooling cycle system.
Background technology
Ejector is a kind of equipment being pressurized to low-pressure steam using high compressed steam, very early by with
In the refrigeration system that low level heat energy drives.It is often used in refrigeration systems and compression-type refrigerating system
Composition injection/compression mixed vapour refrigeration system.
In injection/compression-type refrigerating system, the use of ejector, it is possible to increase system compressors pressure of inspiration(Pi)
Power, the coolant distributing uniformity in vaporizer that improves, the drag losses for reducing vaporizer and lifting compressor
Work efficiency etc., the final coefficient of refrigerating performance for improving kind of refrigeration cycle.However, in the refrigeration system, it is cold
Matchmaker forms a circulation between ejector, gas-liquid separator and vaporizer, and the lubricating oil in system is easy
It is detained in vaporizer, when there is substantial amounts of lube oil retention in vaporizer, evaporator heat exchange can be affected
Efficiency, and easily cause compressor lubrication not enough, affect refrigeration.
In prior art, the patent of invention of Application No. 03146300.2 discloses a kind of ejector cycle,
In the ejector cycle with the ejector for the cryogen that reduces pressure, check-valves are arranged in drainback passage,
Ejector is bypassed by cryogen of the drainback passage comprising lubricating oil and is gone out from the cryogen of vaporizer
Mouth side is oriented to the cryogen suction side of compressor.When the lubricants capacity in being trapped in vaporizer is reduced, non-return
Valve is automatically switched off, and is automatically set as the standard operation pattern of ejector cycle.On the contrary, when there is substantial amounts of profit
When lubricating oil is trapped in vaporizer, check-valves are automatically turned on, and are automatically set as oil return pattern.Program profit
With the pumping action of compressor, the parts such as pipeline/valve/pressure transducer/regenerator are increased in systems, passed through
Adjustment system control logic, forms pressure differential, using pressure in vaporizer import/export and suction side
Difference is recovered to the lubricating oil in vaporizer in compressor.The system is taken liquid refrigerants and lubricating oil is straight
Suction compressor is connect, liquid hammer is easily caused, so as to damage compressor, and system is made during oil return
Cold can decline, and have impact on the normal work of vaporizer.
Additionally, the utility model patent of Application No. 201120535312.4 discloses a kind of refrigeration compressor
The oil-returning structure of gas cooler in Performance Test System, it sets up in a test system an injector, should
Injector includes receiving chamber, mixing chamber and diffuser casing, and the mixing chamber is located between receiving chamber and diffuser casing,
And receiving chamber is connected with diffuser casing by mixing chamber；Gas cooler bottom in test system offer to
A few oil outlet, the oil outlet is connected by the road with the mixing chamber of injector, the receiving chamber Jing of injector
Pipeline is connected with the gas outlet of oil eliminator in test system, and the diffuser casing of injector is by the road with test
Compressor air suction mouth connection in system.The program is led to by standard refrigeration cycle, increasing ejector
Cross bypass ejector the coolant injection containing lubricating oil stored in vaporizer is recovered in compressor.
The patent of invention of Application No. 201310532550.3 discloses one kind and has automatic defrosting and oil return work(
The spraying cycle of energy, by adding a branch road in evaporator outlet and compressor air suction mouth, by valve
Switching solve conventional injector circulation do not possess automatic defrosting and middle compressor cannot oil return defect,
The stability of system operation is significantly improved, the scope of application of spraying cycle can be expanded, be obviously improved circulation effect
Rate.In vaporizer defrosting or compressor oil return, the valve and gas-liquid separator of ejector air entry are closed
The valve of air vent, opens the valve of evaporator outlet branch road, allows the gas-liquid two-phase that ejector is exported to flow through
Vaporizer is all flowed through after gas-liquid separator, evaporating pressure can be obviously improved, play a part of defrost.The party
Case increases valve and pipeline in jet refrigeration circulation, in oil return pattern, by switch valve by coolant
Condenser, ejector, gas-liquid separator, vaporizer are out sequentially passed through afterwards from compressor, are eventually passed back to
Compressor.Gas-liquid separator and vaporizer are washed away by coolant by the pumping action of compressor, improvement pressure is reached
The effect of contracting machine oil return.
The utility model patent of Application No. 201420269697.8 discloses a kind of refrigeration system, including by
Compressor, condenser, restricting element, the refrigeration major loop of vaporizer composition, in the refrigeration major loop
And it is additionally provided with gs-oil separator between the compressor and the condenser；In the refrigeration system
Injection oil return circuit is additionally provided with, the injection oil return circuit includes connecting described respectively by connecting line
The ejector of gs-oil separator, the vaporizer and the compressor；Separated with gs-oil separator
High-pressure liquid oil as ejector power source, do not reduce cooling system amount, make unit more safely may be used
By operation.The program increases ejector between oil and suction side, while ejector injection end
It is connected with vaporizer.During oil return pattern, the oil spurts in oil is returned compressor by ejector, while will steam
The oily injection sent out in device returns compressor.
In above-mentioned each scheme, system does not have lasting automatic oil return function, and because lubricating oil is liquid,
Easily liquid hammer is caused to compressor during oil return.
The content of the invention
As it was previously stated, to solve problems of the prior art, the present invention provide it is a kind of it is new, have
Do not affect system worked well, the jet refrigeration circulation system of automatic oil return can be continued, the system can also
Prevent from causing compressor liquid hammer during oil return.
A kind of jet refrigeration circulation system with automatic oil return function of present invention offer, including ejector,
Vaporizer, gas-liquid separator, nebulizer and compressor, the ejector, vaporizer, gas-liquid separator,
Nebulizer and compressor are connected by pipeline, and in oil return pattern, the liquid refrigerant containing lubricating oil is from steaming
Send out device to be out atomized into nebulizer, the injected device of the liquid refrigerant containing lubricating oil after the atomization
Suction；The ejector mixes biphase driving stream coolant, and lubricating oil and the gaseous coolant of mist state are formed
Aerosol form enters gas-liquid separator；The aerosol form material Jing after gas-liquid separator process, moisten by mist state
Lubricating oil returns to compressor with the gaseous coolant in gas-liquid separator.
Preferably, the system also includes condenser, and the condenser connects respectively ejector and compressor.
Preferably, the system also include oil eliminator, the oil eliminator respectively with compressor and condensation
Device is connected.
Preferably, control valve is additionally provided between the vaporizer and gas-liquid separator.
Preferably, the ejector include nozzle, induction chamber, mixing chamber, diffusion room, drive stream import,
Stream import and injection flow export, the nozzle is attracted to be socketed in induction chamber, the induction chamber, mixing chamber
And be sequentially connected before and after diffusion room, described to drive stream import to be located at nozzle head end, the attraction stream import sets
In induction chamber lower section, the injection flow export is located at diffusion room end.
Preferably, it is provided between ejector and nebulizer for controlling the coolant in vaporizer and lubricating oil
Whether through the reversal valve of nebulizer, described reversal valve has the interface being connected with described vaporizer.
Preferably, the mode of operation of the system is divided into general mode and returns according to the control direction of reversal valve
Oily pattern.
Preferably, the nebulizer is provided with knob, the start-stop and atomization effect of the knob control nebulizer
Really.
According to the present invention provide the jet refrigeration circulation system with automatic oil return function, including ejector,
Vaporizer, gas-liquid separator, nebulizer and compressor, the ejector, vaporizer, gas-liquid separator,
Nebulizer and compressor are connected by pipeline, and in oil return pattern, the liquid refrigerant containing lubricating oil is from steaming
Send out device to be out atomized into nebulizer, the injected device suction of the liquid refrigerant containing lubricating oil after atomization；
Ejector mixes biphase driving stream coolant, and lubricating oil and the gaseous coolant of mist state form aerosol form and enter
Enter gas-liquid separator；Jing after gas-liquid separator process, mist state lubricating oil is with gas-liquid point for aerosol form material
Gaseous coolant in device returns to compressor.Thus, when system normal operating conditions is kept, realizing
Continue automatic oil return, while avoid producing liquid hammer to compressor.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Apply the accompanying drawing to be used needed for example or description of the prior art to be briefly described, it should be apparent that, below
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is that the jet refrigeration circulation system without oil eliminator that present pre-ferred embodiments are provided is illustrated
Figure；
Fig. 2 is that the jet refrigeration circulation system with oil eliminator that present pre-ferred embodiments are provided is illustrated
Figure；
Fig. 3 is emitter construction schematic diagram in the jet refrigeration circulation system that present pre-ferred embodiments are provided；
Fig. 4 is the jet refrigeration circulation system with oil eliminator that another embodiment of the present invention is provided
Schematic diagram；
Fig. 5 is the jet refrigeration circulation system without oil eliminator that another embodiment of the present invention is provided
Schematic diagram.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that
In the case of not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
Fig. 1 is that the jet refrigeration circulation system without oil eliminator that present pre-ferred embodiments are provided is illustrated
Figure.As shown in figure 1, the jet refrigeration circulation system without oil eliminator that present pre-ferred embodiments are provided
Uniting includes ejector 3, vaporizer 6, gas-liquid separator 4, nebulizer 7 and compressor 1, ejector 3,
Vaporizer 6, gas-liquid separator 4, nebulizer 7 and compressor 1 are connected by pipeline.In oil return pattern,
Liquid refrigerant containing lubricating oil is out atomized from vaporizer 6 into nebulizer 7, after atomization containing profit
The injected device 3 of liquid refrigerant of lubricating oil is sucked；Ejector 3 mixes biphase driving stream coolant, mist
The lubricating oil of state forms aerosol form and enters gas-liquid separator 4 with gaseous coolant；Aerosol form material Jing gas-liquids
After the process of separator 4, mist state lubricating oil returns to compressor 1 with the gaseous coolant in gas-liquid separator 4.
In the present embodiment, jet refrigeration circulation system also includes condenser 2, and condenser 2 connects respectively injection
Device 3 and compressor 1.Control valve 5 is additionally provided between vaporizer 6 and gas-liquid separator 4.
Fig. 2 is that the jet refrigeration circulation system with oil eliminator that present pre-ferred embodiments are provided is illustrated
Figure.As shown in Fig. 2 the jet refrigeration circulation system with oil eliminator that present pre-ferred embodiments are provided
System also includes oil eliminator 8, and oil eliminator 8 is connected respectively with compressor 1 and condenser 2.
Fig. 3 is emitter construction schematic diagram in the jet refrigeration circulation system that present pre-ferred embodiments are provided.
As shown in figure 3, ejector includes that nozzle A, induction chamber B, mixing chamber C, diffusion room D, driving stream enter
Mouth X, attraction stream import Y and injection flow export Z, nozzle A are socketed in induction chamber B, induction chamber B,
It is sequentially connected before and after mixing chamber C and diffusion room D, drives stream import X to be located at nozzle A head ends, attracts stream
Import Y is located at diffusion room D ends located at induction chamber B lower sections, injection flow export Z.
With reference to Fig. 1 and Fig. 3, when system is normally run, the lubricating oil that nebulizer 7 will store in vaporizer 6
Atomization, the injected device 3 of mist state lubricating oil sucks induction chamber B, and after the nozzle A of ejector 3 throttlings
Coolant is mixed into aerosol state in mixing chamber C, and gas-liquid separator 4, portion are entered Jing after the D diffusions of diffusion room
Point mist state lubricating oil returns to compressor 1 with the gaseous coolant in gas-liquid separator 4, will evaporate so as to reach
The lubricating oil being detained in device 6 is recovered to the effect of compressor 1.As before, the continuous firing of nebulizer 7, can
With lasting oil return, and system worked well is not affected.Compare other schemes, the injection system that the present invention is provided
SAPMAC method system merely add a nebulizer 7, and control is simple.
Fig. 4 is the jet refrigeration circulation system with oil eliminator that another embodiment of the present invention is provided
Schematic diagram, Fig. 5 is the jet refrigeration circulation without oil eliminator that another embodiment of the present invention is provided
System schematic.As shown in Figures 4 and 5, pipeline is also set up (i.e. between vaporizer 6 and ejector 3
Bypass), it is provided between ejector 3 and nebulizer 7 for controlling coolant and lubrication in vaporizer 6
Whether through the reversal valve M of nebulizer 7, reversal valve M has the interface being connected with vaporizer 6 to oil.
In this, the mode of operation of system is divided into general mode and oil return pattern according to the control direction of reversal valve, and two
The pattern of kind can free switching.
In the present embodiment, nebulizer 7 is connected to vaporizer 6 and exports and ejector 3 between, in other realities
In applying example, nebulizer 7 can also be connected directly between other positions of vaporizer 6 by other pipeline,
The working condition of nebulizer 7 so can be controlled by valve.In this, nebulizer 7 is provided with knob,
The start-stop and atomizing effect of knob control nebulizer 7.Specifically, nebulizer 7 can be arranged to output can
Adjust, the controllable different mode of start-stop, to adapt to different scenes under system requirements.
To sum up, the jet refrigeration circulation with automatic oil return function for being provided according to present pre-ferred embodiments
System, including ejector, vaporizer, gas-liquid separator, nebulizer and compressor, ejector, evaporation
Device, gas-liquid separator, nebulizer and compressor are connected by pipeline, in oil return pattern, containing lubricating oil
Liquid refrigerant be out atomized into nebulizer from vaporizer, the liquid system containing lubricating oil after atomization
The injected device suction of cryogen；Ejector mixes biphase driving stream coolant, the lubricating oil and gaseous state of mist state
Coolant forms aerosol form and enters gas-liquid separator；Aerosol form material Jing gas-liquid separator process after, mist
State lubricating oil returns to compressor with the gaseous coolant in gas-liquid separator.Thus, lubricating oil is cold with gaseous state
Matchmaker returns to compressor, can improve the liquid hit phenomenon of compressor during oil return.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using this
Invention.Various modifications to these embodiments will be for those skilled in the art apparent
, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to embodiment illustrated herein, and
It is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a kind of jet refrigeration circulation system with automatic oil return function, it is characterised in that including injection
Device, vaporizer, gas-liquid separator, nebulizer and compressor, the ejector, vaporizer, gas-liquid point
Connected by pipeline from device, nebulizer and compressor,
In oil return pattern, the liquid refrigerant containing lubricating oil is out atomized from vaporizer into nebulizer,
The injected device suction of the liquid refrigerant containing lubricating oil after the atomization；The ejector is by biphase drive
Dynamic stream coolant mixing, lubricating oil and the gaseous coolant of mist state form aerosol form and enter gas-liquid separator；Institute
Aerosol form material is stated Jing after gas-liquid separator process, mist state lubricating oil is with the gaseous state in gas-liquid separator
Coolant returns to compressor.
2. the jet refrigeration circulation system with automatic oil return function according to claim 1, it is special
Levy and be, the system also includes condenser, the condenser connects respectively ejector and compressor.
3. the jet refrigeration circulation system with automatic oil return function according to claim 2, it is special
Levy and be, the system also includes oil eliminator, the oil eliminator connects respectively with compressor and condenser
It is logical.
4. the jet refrigeration circulation system with automatic oil return function according to claim 1, it is special
Levy and be, control valve is additionally provided between the vaporizer and gas-liquid separator.
5. the jet refrigeration circulation system with automatic oil return function according to claim 1, it is special
Levy and be, the ejector includes nozzle, induction chamber, mixing chamber, diffusion room, driving stream import, suction
Drain import and injection flow export, the nozzle is socketed in induction chamber, the induction chamber, mixing chamber and
Diffusion is sequentially connected before and after room, and described to drive stream import to be located at nozzle head end, the attraction stream import is located at
Induction chamber lower section, the injection flow export is located at diffusion room end.
6. the jet refrigeration circulation system with automatic oil return function according to claim 1, it is special
Levy and be, be provided between ejector and nebulizer for whether controlling the coolant in vaporizer and lubricating oil
Through the reversal valve of nebulizer, described reversal valve has the interface being connected with described vaporizer.
7. the jet refrigeration circulation system with automatic oil return function according to claim 6, it is special
Levy and be, the mode of operation of the system is divided into general mode and oil return mould according to the control direction of reversal valve
Formula.
8. the jet refrigeration circulation system with automatic oil return function according to claim 1, it is special
Levy and be, the nebulizer is provided with knob, the start-stop and atomizing effect of the knob control nebulizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756138.9A CN106679227A (en) | 2015-11-09 | 2015-11-09 | Spraying refrigerating circulation system with automatic oil return function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756138.9A CN106679227A (en) | 2015-11-09 | 2015-11-09 | Spraying refrigerating circulation system with automatic oil return function |
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| CN201510756138.9A Pending CN106679227A (en) | 2015-11-09 | 2015-11-09 | Spraying refrigerating circulation system with automatic oil return function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344574A (en) * | 2020-11-27 | 2021-02-09 | 珠海格力电器股份有限公司 | Refrigerating system, unit and lubricating oil quantity adjusting method of refrigerating system |
| CN113531950A (en) * | 2021-07-14 | 2021-10-22 | 太原理工大学 | Solar energy sprays and middle exhaust compression coupling refrigerating plant |
| US11306950B2 (en) | 2017-07-28 | 2022-04-19 | Carrier Corporation | Lubrication supply system |
| CN114484945A (en) * | 2022-03-14 | 2022-05-13 | 珠海格力电器股份有限公司 | Air conditioner refrigeration system and control method thereof |
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| CN1475716A (en) * | 2002-07-08 | 2004-02-18 | 株式会社电装 | Injector circulation |
| CN2839637Y (en) * | 2005-03-16 | 2006-11-22 | 中国科学院理化技术研究所 | Piston type helium compressor |
| CN202371934U (en) * | 2011-12-20 | 2012-08-08 | 麦克维尔空调制冷(苏州)有限公司 | Oil return structure of gas cooler in refrigeration compressor performance testing system |
| CN103542570A (en) * | 2013-10-30 | 2014-01-29 | 上海交通大学 | Injection circulation with automatic defrosting and oil return functions |
-
2015
- 2015-11-09 CN CN201510756138.9A patent/CN106679227A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475716A (en) * | 2002-07-08 | 2004-02-18 | 株式会社电装 | Injector circulation |
| CN2839637Y (en) * | 2005-03-16 | 2006-11-22 | 中国科学院理化技术研究所 | Piston type helium compressor |
| CN202371934U (en) * | 2011-12-20 | 2012-08-08 | 麦克维尔空调制冷(苏州)有限公司 | Oil return structure of gas cooler in refrigeration compressor performance testing system |
| CN103542570A (en) * | 2013-10-30 | 2014-01-29 | 上海交通大学 | Injection circulation with automatic defrosting and oil return functions |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11306950B2 (en) | 2017-07-28 | 2022-04-19 | Carrier Corporation | Lubrication supply system |
| CN112344574A (en) * | 2020-11-27 | 2021-02-09 | 珠海格力电器股份有限公司 | Refrigerating system, unit and lubricating oil quantity adjusting method of refrigerating system |
| CN112344574B (en) * | 2020-11-27 | 2024-05-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Refrigerating system, unit and method for adjusting lubricating oil quantity of refrigerating system |
| CN113531950A (en) * | 2021-07-14 | 2021-10-22 | 太原理工大学 | Solar energy sprays and middle exhaust compression coupling refrigerating plant |
| CN113531950B (en) * | 2021-07-14 | 2022-06-07 | 太原理工大学 | Solar energy sprays and middle exhaust compression coupling refrigerating plant |
| CN114484945A (en) * | 2022-03-14 | 2022-05-13 | 珠海格力电器股份有限公司 | Air conditioner refrigeration system and control method thereof |
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Application publication date: 20170517 |