CN104913536A - Multistage compression refrigerating machine - Google Patents
Multistage compression refrigerating machine Download PDFInfo
- Publication number
- CN104913536A CN104913536A CN201510246145.4A CN201510246145A CN104913536A CN 104913536 A CN104913536 A CN 104913536A CN 201510246145 A CN201510246145 A CN 201510246145A CN 104913536 A CN104913536 A CN 104913536A
- Authority
- CN
- China
- Prior art keywords
- turbocharger
- expansion valve
- evaporimeter
- pressue device
- compressor
- 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.)
- Pending
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
Abstract
The invention relates to the field of refrigerating systems, in particular to a multistage compression refrigerating machine. The multistage compression refrigerating machine comprises a compressor, an oil separator, a condenser, a filter, a magnetic valve, a first expansion valve, a first evaporator and a first turbocharger which are sequentially connected together through pipelines, a high-pressure exhaust port of the first turbocharger is connected with the air inlet end of the compressor through a pipeline, and the first expansion valve, the first evaporator and the first turbocharger form a first pressure device; a branch is arranged on the pipeline between the magnetic valve and the first expansion valve, the branch is connected with the air inlet end of the compressor, and the branch is provided with a temperature response expansion valve. According to the multistage compression refrigerating machine, different temperatures can be achieved by utilizing one compressor, the equipment utilization efficiency is high, and the adaptability is great.
Description
Technical field
The present invention relates to field of refrigeration, particularly a kind of multi-stage compression refrigerator.
Background technology
At present, refrigerator is used in the industries such as food, medicine, chemical industry widely, and it makes to remain in freezer in certain low temperature range, thus makes the article in freezer keep fresh and meet the needs of cryopreservation.Common refrigerator comprises Condensing units, air-cooler, electric cabinet, refrigeration pipe etc.Under the effect of compressor, make the refrigerant in pipeline enter refrigeration pipe, refrigerant is converted to gaseous state by liquid state in refrigeration pipe, in transfer process, absorb heat, reaches the object reducing cold storehouse temperature.
But traditional refrigerator refrigerating efficiency is that the power that effectively cannot adjust compressor, to realize different refrigeration, uses restricted larger by the power decision of compressor.
Summary of the invention
The blank that the present invention seeks to exist for prior art provides a kind of multi-stage compression refrigerator.
The present invention for achieving the above object, adopt following technical scheme: multi-stage compression refrigerator, comprise compressor, oil eliminator, condenser, filter, magnetic valve, the first expansion valve, the first evaporimeter and the first turbocharger, they are linked together by pipeline successively, and the described high-pressure exhaust of the first turbocharger is connected by pipeline with the inlet end of compressor; Described first expansion valve, the first evaporimeter and the first turbocharger form the first pressue device; Pipeline between described magnetic valve and the first expansion valve is provided with branch road, described branch road is connected with the inlet end of compressor, described branch road is provided with temperature-responsive expansion valve, when the delivery temperature of refrigeration unit and lubricating oil temperature too high time, temperature-responsive expansion valve is opened, liquid refrigerant is by injecting in the suction end of compressor and compression chamber after this valve throttling cooling, respectively the mixture of the coil of motor, cold-producing medium and lubricating oil is cooled, make the liquid refrigerant entering evaporimeter have lower temperature;
Described first turbocharger comprises low pressure air suction mouth, rotor connecting axle, coil, turbine, spiral case and high-pressure exhaust; Be provided with pressure switch in described first evaporimeter, the opening switch when evaporating pressure reaches predetermined value, turbocharger is started working; Temperature is changed by controlling evaporating pressure.
Preferably, described multi-stage compression refrigerator also comprises the second expansion valve, the second evaporimeter and the second turbocharger, and described second expansion valve, the second evaporimeter and the second turbocharger form the second pressue device; Described second pressue device and the first pressue device are arranged in parallel; Be provided with pressure switch in described second evaporimeter, the opening switch when evaporating pressure reaches predetermined value, turbocharger is started working; Temperature is changed by controlling evaporating pressure.
Preferably, described multi-stage compression refrigerator also comprises the 3rd expansion valve, the 3rd evaporimeter and the 3rd turbocharger, described 3rd expansion valve, the 3rd evaporimeter and the 3rd turbocharger composition the 3rd pressue device; Described 3rd pressue device and the second pressue device, the first pressue device are arranged in parallel; Be provided with pressure switch, the opening switch when evaporating pressure reaches predetermined value in described 3rd evaporimeter, turbocharger is started working; Temperature is changed by controlling evaporating pressure.
Beneficial effect of the present invention: multi-stage compression refrigerator of the present invention utilizes a compressor can realize different temperature, and equipment efficiency of usage is high, strong adaptability.
Accompanying drawing explanation
Fig. 1 is the structural representation of multi-stage compression refrigerator detailed description of the invention of the present invention.
Fig. 2 is the sectional view of the turbocharger detailed description of the invention of invention multi-stage compression refrigerator.
1. compressor; 2. oil eliminator; 3. condenser; 4. filter; 5. magnetic valve; 6. the first expansion valve; 7. the first evaporimeter; 8. the first turbocharger; 81. low pressure air suction mouths; 82. rotor connecting axles; 83. coils; 84. turbines; 85. spiral cases; 86. high-pressure exhausts; 9. temperature-responsive expansion valve; 10. the second expansion valve; 11. second evaporimeters; 12. second turbocharger; 13. the 3rd expansion valves; 14. the 3rd evaporimeters; 15. the 3rd turbocharger.
Detailed description of the invention
Multi-stage compression refrigerator, comprise compressor 1, oil eliminator 2, condenser 3, filter 4, magnetic valve 5, first expansion valve 6, first evaporimeter 7 and the first turbocharger 8, they are linked together by pipeline successively, and the high-pressure exhaust 86 of the first turbocharger 8 is connected by pipeline with the inlet end of compressor 1; First expansion valve 6, first evaporimeter 7 and the first turbocharger 8 form the first pressue device; Pipeline between magnetic valve 5 and the first expansion valve 6 is provided with branch road, described branch road is connected with the inlet end of compressor 1, described branch road is provided with temperature-responsive expansion valve 9, when the delivery temperature of refrigeration unit and lubricating oil temperature too high time, temperature-responsive expansion valve 9 is opened, liquid refrigerant is by injecting in the suction end of compressor and compression chamber after this valve throttling cooling, respectively the mixture of the coil of motor, cold-producing medium and lubricating oil is cooled, make the liquid refrigerant entering evaporimeter have lower temperature;
Described first turbocharger 8 comprises low pressure air suction mouth 81, rotor connecting axle 82, coil 83, turbine 84, spiral case 85 and high-pressure exhaust 86; Be provided with pressure switch, the opening switch when evaporating pressure reaches predetermined value in described first evaporimeter 7, the first turbocharger 8 is started working; Temperature is changed by controlling evaporating pressure.
As the preferred embodiment of the present invention, multi-stage compression refrigerator also comprises the second expansion valve 10, second evaporimeter 11 and the second turbocharger 12, second expansion valve 10, second evaporimeter 11 and the second turbocharger 12 and forms the second pressue device; Second pressue device and the first pressue device are arranged in parallel; Be provided with pressure switch in second evaporimeter 11, the opening switch when evaporating pressure reaches predetermined value, the second turbocharger 12 is started working; Temperature is changed by controlling evaporating pressure.
As the preferred embodiment of the present invention, as the preferred embodiment of the present invention, multi-stage compression refrigerator also comprises the 3rd expansion valve 13, the 3rd evaporimeter 14 and the 3rd turbocharger the 15, three expansion valve 13, the 3rd evaporimeter 14 and the 3rd turbocharger 15 and forms the 3rd pressue device; 3rd pressue device and the first pressue device, the second pressue device are arranged in parallel; Be provided with pressure switch in 3rd evaporimeter 14, the opening switch when evaporating pressure reaches predetermined value, the second turbocharger 15 is started working; Temperature is changed by controlling evaporating pressure.
Second turbocharger 12 is consistent with the second turbocharger 8 with the structure of the 3rd turbocharger 15; For this detailed description of the invention, the pressure switch preset pressure in the first evaporimeter 7, second evaporimeter 11 and the 3rd evaporimeter 14 increases successively, often opens a turbocharger more, namely can reduce temperature 5-30 DEG C.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. multi-stage compression refrigerator, it is characterized in that comprising compressor (1), oil eliminator (2), condenser (3), filter (4), magnetic valve (5), the first expansion valve (6), the first evaporimeter (7) and the first turbocharger (8), they are linked together by pipeline successively, and the high-pressure exhaust (86) of described first turbocharger (8) is connected by pipeline with the inlet end of compressor (1); Described first expansion valve (6), the first evaporimeter (7) and the first turbocharger (8) form the first pressue device; Pipeline between described magnetic valve (5) and the first expansion valve (6) is provided with branch road, and described branch road is connected with the inlet end of compressor (1), and described branch road is provided with temperature-responsive expansion valve (9);
Described first turbocharger (8) comprises low pressure air suction mouth (81), rotor connecting axle (82), coil (83), turbine (84), spiral case (85) and high-pressure exhaust (86); Pressure switch is provided with in described first evaporimeter (7).
2. multi-stage compression refrigerator as claimed in claim 1, it is characterized in that described multi-stage compression refrigerator also comprises the second expansion valve (10), the second evaporimeter (11) and the second turbocharger (12), described second expansion valve (10), the second evaporimeter (11) and the second turbocharger (12) form the second pressue device; Described second pressue device and the first pressue device are arranged in parallel; Pressure switch is provided with in described second evaporimeter (11).
3. multi-stage compression refrigerator as claimed in claim 1, it is characterized in that described multi-stage compression refrigerator also comprises the 3rd expansion valve (13), the 3rd evaporimeter (14) and the 3rd turbocharger (15), described 3rd expansion valve (13), the 3rd evaporimeter (14) and the 3rd turbocharger (15) composition the 3rd pressue device; Described 3rd pressue device and the second pressue device, the first pressue device are arranged in parallel; Pressure switch is provided with in described 3rd evaporimeter (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246145.4A CN104913536A (en) | 2015-05-14 | 2015-05-14 | Multistage compression refrigerating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246145.4A CN104913536A (en) | 2015-05-14 | 2015-05-14 | Multistage compression refrigerating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104913536A true CN104913536A (en) | 2015-09-16 |
Family
ID=54082811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510246145.4A Pending CN104913536A (en) | 2015-05-14 | 2015-05-14 | Multistage compression refrigerating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104913536A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847753A (en) * | 2005-04-12 | 2006-10-18 | 胡龙潭 | Wide temperature range heat pump |
| CN201297793Y (en) * | 2008-09-04 | 2009-08-26 | 长沙中南升华科技发展有限公司 | Energy-saving return air pressurization device for refrigerator |
| CN101535735A (en) * | 2006-11-21 | 2009-09-16 | 大金工业株式会社 | Air conditioner |
| CN102494376A (en) * | 2011-11-28 | 2012-06-13 | 林贤华 | Turbocharging multiplex heat-pump and hot-water three-purpose air-conditioning system |
| CN202581916U (en) * | 2012-06-26 | 2012-12-05 | 大连三洋冷链有限公司 | Convenience store energy saving freezing and refrigeration system |
| CN204678731U (en) * | 2015-05-14 | 2015-09-30 | 江苏博莱客冷冻科技发展有限公司 | Multi-stage compression refrigerator |
-
2015
- 2015-05-14 CN CN201510246145.4A patent/CN104913536A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847753A (en) * | 2005-04-12 | 2006-10-18 | 胡龙潭 | Wide temperature range heat pump |
| CN101535735A (en) * | 2006-11-21 | 2009-09-16 | 大金工业株式会社 | Air conditioner |
| CN201297793Y (en) * | 2008-09-04 | 2009-08-26 | 长沙中南升华科技发展有限公司 | Energy-saving return air pressurization device for refrigerator |
| CN102494376A (en) * | 2011-11-28 | 2012-06-13 | 林贤华 | Turbocharging multiplex heat-pump and hot-water three-purpose air-conditioning system |
| CN202581916U (en) * | 2012-06-26 | 2012-12-05 | 大连三洋冷链有限公司 | Convenience store energy saving freezing and refrigeration system |
| CN204678731U (en) * | 2015-05-14 | 2015-09-30 | 江苏博莱客冷冻科技发展有限公司 | Multi-stage compression refrigerator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |