CN203857703U - Refrigerating system - Google Patents
Refrigerating system Download PDFInfo
- Publication number
- CN203857703U CN203857703U CN201420269697.8U CN201420269697U CN203857703U CN 203857703 U CN203857703 U CN 203857703U CN 201420269697 U CN201420269697 U CN 201420269697U CN 203857703 U CN203857703 U CN 203857703U
- Authority
- CN
- China
- Prior art keywords
- oil
- refrigeration system
- inflow entrance
- compressor
- evaporimeter
- 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.)
- Expired - Lifetime
Links
- 238000002347 injection Methods 0.000 claims description 50
- 239000007924 injection Substances 0.000 claims description 50
- 238000005057 refrigeration Methods 0.000 claims description 35
- 238000009792 diffusion process Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002000 scavenging effect Effects 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 40
- 239000010721 machine oil Substances 0.000 description 19
- 239000003507 refrigerant Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 239000010725 compressor oil Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses a refrigerating system. The refrigerating system comprises a refrigerating main loop consisting of a compressor, a condenser, a throttling element and an evaporator, an oil-gas separator positioned between the compressor and the condenser is further arranged in the refrigerating main loop, and an ejecting oil scavenging loop is further arranged in the refrigerating system and comprises an ejector which is connected with the oil-gas separator, the evaporator and the compressor through connecting pipelines. The refrigerating system has the advantages that high-pressure fluid oil separated by the oil-gas separator is used as a power source of the ejector, and refrigerating capacity of the refrigerating system is not lowered, so that a unit runs more safely and reliably; pipeline maintenance is facilitated since valves are arranged among all connecting pipelines for the ejector; the refrigerating system is simpler in pipeline and easy to control; the ejector serves as an ejecting oil scavenging pump, and thereby the refrigerating system is simple in structure, low in cost and stable and reliable in system running without mechanical motion components.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, relates in particular to a kind of refrigeration system.
Background technology
Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to gases at high pressure.It is the heart of refrigeration system, it is from the refrigerant gas of air intake duct suction low-temp low-pressure, after driving piston to compress it by motor rotation, discharge the refrigerant gas of HTHP to blast pipe, for kind of refrigeration cycle provides power, thus the kind of refrigeration cycle of realization compression → condensation (heat release) → expand → evaporation (heat absorption).
When compressor operating, need to adopt machine oil to be lubricated, machine oil coexists in system and circulates with cold-producing medium one in the running of refrigeration system, gs-oil separator can be set in common refrigeration system cold-producing medium is separated with machine oil, realization is again led back machine oil in compressor and is recycled after separating.Be machine oil cannot to be separated completely with cold-producing medium, still have part machine oil and enter into evaporimeter and carry out in the process of Oil-gas Separation at gs-oil separator.
Be in-25 DEG C～-55 DEG C refrigeration systems evaporimeter adopt dry evaporator in evaporating temperature at present more, utilize absorbing gas belt oil that oil is withdrawn in compressor, but effect is undesirable, and evaporimeter heat transfer effect be poor.In order to raise the efficiency, a lot of producers full-liquid type handpiece Water Chilling Units, traditional flooded evaporator unit is under cooling condition, evaporimeter inner refrigerant temperature is very low, and the refrigerator oil viscosity that enters evaporimeter increases, and is difficult for being brought back compressor, thereby it is low to cause heat exchange efficiency, the problems such as compressor oil starvation.
In order to improve and improve the compressor oil return performance of full-liquid type handpiece Water Chilling Units, injection oil return circuit is set mostly in unit, but the injection oil return circuit of producer's design adopts the power source of condenser mesohigh gas as injector mostly, due to gas compressibility, causes ejection efficiency lower.In addition, adopt highly pressurised liquid or gases at high pressure as the power source of injector, wasted part of refrigerant, cause refrigerating capacity to reduce.
Utility model content
The technical problem that the utility model solves is: provide a kind of and can in keeping refrigerant system capacity, set up the refrigeration system of spraying oil return circuit, realize the injection to machine oil in evaporimeter, ensure that the oil level in compressor is stable.
For reaching this object, the utility model by the following technical solutions:
A kind of refrigeration system, comprises the refrigeration major loop being made up of compressor, condenser, restricting element, evaporimeter, in described refrigeration major loop and between described compressor and described condenser, is also provided with gs-oil separator; In described refrigeration system, be also provided with injection oil return circuit, described injection oil return circuit comprises the injector that connects respectively described gs-oil separator, described evaporimeter and described compressor by connecting line.
Preferably, described injector has main injection inflow entrance, secondary injection inflow entrance and injection stream outlet, described main injection inflow entrance connects described gs-oil separator, and described secondary injection inflow entrance connects described evaporimeter, and described injection stream outlet connects described compressor.
Preferably, described base of evaporator is provided with oil-collecting bag, and described secondary injection inflow entrance is connected with described oil-collecting bag.
Preferably, on the described connecting line between described injector and described gs-oil separator, evaporimeter and compressor, be provided with valve.
Preferably, described injector comprises receiving chamber, mixing chamber and diffusion chamber successively, and described main injection inflow entrance and described secondary injection inflow entrance are arranged on described receiving chamber place, and described injection stream outlet is arranged on diffusion chamber place.
Preferably, described receiving chamber place is provided with nozzle, and described main injection inflow entrance is arranged on described nozzle.
Preferably, described secondary injection inflow entrance is arranged on the injector sidewall between described main injection inflow entrance and the outlet of described nozzle.
Preferably, described evaporimeter adopts flooded evaporator.
Preferably, in described refrigeration system, also comprise the oil mass checkout gear for detection of oil reserve in described oil-collecting bag, for controlling the valve control device of described valve.
Preferably, the keying of valve described in the oil reserve signal controlling that described valve control device is exported by oil mass checkout gear.
The beneficial effects of the utility model are: the high-pressure liquid oil of separating using gs-oil separator, as the power source of injector, does not reduce cooling system amount, make unit safe and reliable operation more; Between the each connecting line of injector, be provided with valve, be convenient to carry out pipeline maintenance; System pipeline is simpler, is easy to control; Adopt injector as spraying scavenge oil pump, it is simple in structure, cost is low, machinery-free moving component system run all right is reliable.
Brief description of the drawings
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is refrigerant system configurations schematic diagram described in the present embodiment.
Fig. 2 is emitter construction schematic diagram described in the present embodiment.
In figure:
1, compressor; 2, condenser; 3, restricting element; 4, evaporimeter; 5, gs-oil separator; 6, the first tube connector; 7, the second tube connector; 8, the 3rd tube connector; 9, nozzle; 10, main injection inflow entrance; 11, secondary injection inflow entrance; 12, injection stream outlet; 13, electromagnet cut off valve; 14, injector; 15, receiving chamber; 16, mixing chamber; 17, diffusion chamber; 18, oil-collecting bag.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by detailed description of the invention.
As shown in Fig. 1～2, in the present embodiment, a kind of refrigeration system described in the utility model comprises refrigeration major loop and sprays oil return circuit, the major loop that wherein freezes comprises compressor 1, condenser 2, restricting element 3 and evaporimeter 4, the gs-oil separator 5 of the compressor oil mixing in refrigeration is also provided with for separating of cold-producing medium and cold-producing medium in major loop; Spray oil return circuit and comprise an injector 14, described injector 14 has main injection inflow entrance 10, secondary injection inflow entrance 11 and injection stream outlet 12.
Main injection inflow entrance 10 connects gs-oil separator 5 by the first tube connector 6, and secondary injection inflow entrance 11 connects by the second tube connector 7 position that evaporimeter 4 bottom machine oil condense, and injection stream outlet 12 connects compressor 1 by the 3rd tube connector 8.
In the present embodiment, injector 14 includes the receiving chamber 15, mixing chamber 16 and the diffusion chamber 17 that set gradually, is provided with nozzle 9 in receiving chamber 15, and main injection inflow entrance 10 is arranged on nozzle 9, and the outlet of nozzle 9 is arranged in receiving chamber 15; Secondary injection inflow entrance 11 is arranged on receiving chamber place, and described secondary injection inflow entrance 11 is arranged on injector 14 sidewalls between described main injection inflow entrance 10 and the outlet of described nozzle 9, and receiving chamber 15 is for receiving higher pressure refrigerant gas and machine oil.
The outlet of nozzle 9 is arranged on mixing chamber 16 places, is mixed with the machine oil in secondary injection fluid by the high-pressure refrigerant of nozzle 9 places ejection in mixing chamber 16.On diffusion chamber 17, be provided with injection stream outlet, diffusion chamber 17 is for improving the pressure of mixture of higher pressure refrigerant gas and machine oil.
In refrigeration system running, compressor 1 sucks low-temperature low-pressure refrigerant steam in cylinder, compress through compressor 1, pressure is elevated to the pressure being greater than in condenser 2, now the high-pressure refrigerant vapor in its cylinder is discharged in condenser 2 through gs-oil separator 5.The exhaust of compressor 1 is the mist of cold-producing medium and machine oil, slows down by the larger cavity of gs-oil separator 5, and vaporific machine oil will be gathered on the surface of impact, when being gathered into after larger oil droplet, flows to the bottom of gs-oil separator 5.
In condenser 2, refrigerant vapour and temperature are carried out heat exchange and are condensed into liquid refrigerant compared with low medium, and at this moment liquid refrigerant enters evaporimeter 4 after restricting element 3 cooling, after the interior absorption of evaporimeter 4 is cooled the heat of medium, vaporize.The medium that is cooled so just obtains cooling and refrigerant vapour is siphoned away by compressor 1, therefore in refrigeration system, completes a circulation through overcompression, condensation, expansion, evaporation Four processes.
Because gs-oil separator 5 can not separate cold-producing medium with machine oil completely, therefore in the cold-producing medium that enters evaporimeter 4 still doped with machine oil, and now the temperature of evaporimeter 4 is lower, the engine oil viscosity increase that enters evaporimeter 4 is difficult to be brought back compressor 1 and will piles up in evaporimeter 4 bottoms, when be stacked into a certain amount of injector 14 spraying in oil return circuit of opening later, highly pressurised liquid oil in gs-oil separator 5 is through the nozzle step-down raising speed of injector 14, pressure energy is converted into kinetic energy, the high speed operation fluid in nozzle 9 exits constantly entrainments the gas mixture of flash-pot 4, and pass through afterwards 17 superchargings of diffusion chamber in the interior mixing of mixing chamber 16, and finally discharge and enter into compressor 1 by injection stream outlet 12, realize recycling of machine oil.
Evaporimeter 4 adopts flooded evaporator in the present embodiment, for evaporimeter 4 can better be collected machine oil, be provided with oil-collecting bag 18 in the bottom of evaporimeter 4, after condensing, machine oil in evaporimeter 4 can collect in oil-collecting bag 18, secondary injection inflow entrance 11 is connected with it in oil-collecting bag 18 bottoms, and the convenient oil return circuit that sprays carries out the extraction of machine oil.On the first tube connector 6, the second tube connector 7 and the 3rd tube connector 8, be provided with valve, in the present embodiment, valve all adopts electromagnet cut off valve 13, and in refrigeration system, also comprise for detection of the oil mass checkout gear of oil reserve in oil-collecting bag 18 and for controlling electromagnet cut off valve 13 open, closed valve control device, the unlatching of magnetic valve is with closed described in the oil reserve signal controlling that valve control device is exported by oil mass checkout gear.
The terms " first ", " second ", " the 3rd " that this programme adopts etc. are just distinguished on describing, and there is no special implication.
What need statement is; above-mentioned detailed description of the invention is only preferred embodiment of the present utility model and institute's application technology principle; in technical scope disclosed in the utility model; the variation that any those skilled in the art of being familiar with easily expect or replacement, all should be encompassed in protection domain of the present utility model.
Claims (10)
1. a refrigeration system, is characterized in that, comprises the refrigeration major loop being made up of compressor, condenser, restricting element, evaporimeter, in described refrigeration major loop and between described compressor and described condenser, is also provided with gs-oil separator; In described refrigeration system, be also provided with injection oil return circuit, described injection oil return circuit comprises the injector that connects respectively described gs-oil separator, described evaporimeter and described compressor by connecting line.
2. refrigeration system according to claim 1, it is characterized in that, described injector has main injection inflow entrance, secondary injection inflow entrance and injection stream outlet, described main injection inflow entrance connects described gs-oil separator, described secondary injection inflow entrance connects described evaporimeter, and described injection stream outlet connects described compressor.
3. refrigeration system according to claim 2, is characterized in that, described base of evaporator is provided with oil-collecting bag, and described secondary injection inflow entrance is connected with described oil-collecting bag.
4. refrigeration system according to claim 3, is characterized in that, on the described connecting line between described injector and described gs-oil separator, evaporimeter and compressor, is provided with valve.
5. according to the refrigeration system described in any one in claim 2～4, it is characterized in that, described injector comprises receiving chamber, mixing chamber and diffusion chamber successively, described main injection inflow entrance and described secondary injection inflow entrance are arranged on described receiving chamber place, and described injection stream outlet is arranged on diffusion chamber place.
6. refrigeration system according to claim 5, is characterized in that, described receiving chamber place is provided with nozzle, and described main injection inflow entrance is arranged on described nozzle.
7. refrigeration system according to claim 6, is characterized in that, described secondary injection inflow entrance is arranged on the injector sidewall between described main injection inflow entrance and the outlet of described nozzle.
8. refrigeration system according to claim 7, is characterized in that, described evaporimeter adopts flooded evaporator.
9. refrigeration system according to claim 4, is characterized in that, also comprises the oil mass checkout gear for detection of oil reserve in described oil-collecting bag, for controlling the valve control device of described valve in described refrigeration system.
10. refrigeration system according to claim 9, is characterized in that, the keying of valve described in the oil reserve signal controlling that described valve control device is exported by oil mass checkout gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269697.8U CN203857703U (en) | 2014-05-23 | 2014-05-23 | Refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269697.8U CN203857703U (en) | 2014-05-23 | 2014-05-23 | Refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857703U true CN203857703U (en) | 2014-10-01 |
Family
ID=51607550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269697.8U Expired - Lifetime CN203857703U (en) | 2014-05-23 | 2014-05-23 | Refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203857703U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760312A (en) * | 2020-07-10 | 2020-10-13 | 郑州大学 | Waste heat secondary utilization device in cyclohexane plasticizer generation |
| 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 |
| CN116358176A (en) * | 2023-03-06 | 2023-06-30 | 青岛海信日立空调***有限公司 | Water chilling unit and control method thereof |
-
2014
- 2014-05-23 CN CN201420269697.8U patent/CN203857703U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760312A (en) * | 2020-07-10 | 2020-10-13 | 郑州大学 | Waste heat secondary utilization device in cyclohexane plasticizer generation |
| 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 |
| CN116358176A (en) * | 2023-03-06 | 2023-06-30 | 青岛海信日立空调***有限公司 | Water chilling unit and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101443605B (en) | De-airing lubricant recovery system | |
| KR101968517B1 (en) | Ejector-combination type vapor compression cooling-thermal energy conversion dual system | |
| CN110319613B (en) | Single-stage carbon dioxide refrigerating system | |
| CN1580671A (en) | Vapor compression type refrigerating machine | |
| CN208920650U (en) | A kind of refrigeration system | |
| KR20020008807A (en) | Cryogenic refrigerating system | |
| CN102353167A (en) | Screw compressor refrigerating system and refrigerating method thereof | |
| CN101487470A (en) | Double-machine two-stage screw type low-temperature compressor unit | |
| CN203857703U (en) | Refrigerating system | |
| CN101464070B (en) | Injection type low-temperature refrigerator | |
| US4434626A (en) | Maintenance and protection devices for cooling plants | |
| CN104864622A (en) | Auto-cascade steam compression type refrigeration cycle system | |
| CN101033901A (en) | Water source heat pump evaporator suitable for low-temperature water source | |
| CN204787383U (en) | From overlapping vapour pressure formula cooling cycle system that contracts | |
| JP2003269399A (en) | Ejector type dual refrigerator and ejector used for refrigerator | |
| CN105241115A (en) | Steam compressing-jet coupling refrigeration circulating device and method | |
| CN202092360U (en) | Two-phase flow injection refrigerating system | |
| CN203824147U (en) | Freon multiple-machine-head parallel highly-efficient oil-separating barrel and pump combined refrigeration machine | |
| CN201463399U (en) | Heat pump absorption type refrigeration system for refrigerator | |
| CN206160542U (en) | Overlapping formula refrigerating units | |
| CN110296543B (en) | Refrigerating or heat pump system with jet gas-liquid separation heat exchange function | |
| CN1296661C (en) | Refrigerating equipment | |
| CN204478368U (en) | With the free refrigeration type evaporative condenser handpiece Water Chilling Units of pressure maintenance device | |
| CN204880839U (en) | Refrigerating system of vacuum freezing desiccator | |
| CN101487638A (en) | Dual-machine two-stage screw type liquid cooling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
|
| CX01 | Expiry of patent term |