CN204574590U - A kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel - Google Patents
A kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel Download PDFInfo
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- CN204574590U CN204574590U CN201420863077.7U CN201420863077U CN204574590U CN 204574590 U CN204574590 U CN 204574590U CN 201420863077 U CN201420863077 U CN 201420863077U CN 204574590 U CN204574590 U CN 204574590U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to a kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel, compressor bank is successively through condenser, device for drying and filtering, expansion valve connects quick-frozen end evaporator, quick-frozen end evaporator outlet connects compressor bank through gas-liquid separator, described compressor bank comprises two stages of compression unit, the gas outlet of first order compressor bank and the gas outlet of high stage compressor group are connected in parallel to condenser, gas-liquid separator connects the liquid return hole of first order compressor bank and the liquid return hole of high stage compressor group respectively, the first stop valve is provided with between the gas outlet of high stage compressor group and condenser, the liquid return hole of first order compressor bank to be connected between the gas outlet of high stage compressor group and the first stop valve on pipeline through the second stop valve, the 3rd stop valve is provided with between the liquid return hole of gas-liquid separator and first order compressor bank, first, second and third stop valve, first and second stage compressor group are all connected electric cabinet with quick-frozen end evaporimeter.
Description
Technical field
The utility model relates to a kind of quick-freezing plant, is a kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel specifically.
Background technology
Modern fisheries industry and scientific investigation move towards deep-sea from coastal waters; deep cooling demand is got more and more; technical requirement is more and more higher; environmental protection consciousness is also more and more stronger; then higher to the performance of quick-frozen refrigerating plant requirement: rate of temperature fall is fast; operating efficiency is high, energy-conserving and environment-protective, invents mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel for meeting the requirement of above service condition.Quick-freezing plant function singleness peculiar to vessel common at present, rate of temperature fall is slow, and the main cause that requirements at the higher level can not be provided to serve is: (1) conventional quick-freezing plant only considers how to lower the temperature, and distributes without overall arrangement cooling overall process cold; (2) function is relatively simple, can not realize the applying working condition that various temperature requires; (3) compressor bank can not be realized by condition restriction and share use; (4) the cold amount processed of quick-freezing plant has pole to regulate, can not step-less adjustment.
Summary of the invention
The purpose of this utility model be to provide a kind of can Automatic Combined compressor uses flexibly at different operating point and different operating link, refrigerating capacity is regulated automatically by frequency conversion mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel, for all kinds of fishing boat and science are examined or check, ship provides efficiently, energy-saving and environmental protection quick-freezing plant, meets the demand of production or experiment work.
The technical solution adopted in the utility model is: a kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel, comprise compressor bank, condenser, device for drying and filtering, expansion valve, quick-frozen end evaporimeter and gas-liquid separator, compressor bank is successively through condenser, device for drying and filtering, expansion valve connects quick-frozen end evaporator, quick-frozen end evaporator outlet connects compressor bank through gas-liquid separator, described compressor bank comprises two stages of compression unit, the gas outlet of first order compressor bank and the gas outlet of high stage compressor group are connected in parallel to condenser, gas-liquid separator connects the liquid return hole of first order compressor bank and the liquid return hole of high stage compressor group respectively, the first stop valve is provided with between the gas outlet of high stage compressor group and condenser, the liquid return hole of first order compressor bank to be connected between the gas outlet of high stage compressor group and the first stop valve on pipeline through the second stop valve, the 3rd stop valve is provided with between the liquid return hole of gas-liquid separator and first order compressor bank, first, second and third stop valve, first and second stage compressor group are all connected electric cabinet with quick-frozen end evaporimeter.
Further, refrigerant charging geat is provided with between described device for drying and filtering and expansion valve.
Further, heat exchanger plates is provided with between expansion valve and quick-frozen end evaporimeter, expansion valve separates two-way, one tunnel connects quick-frozen end evaporator through the first hot journey of heat exchanger plates, and another road connects the liquid return hole of first and second stage compressor group again after the second hot journey that the first heating power expansion valve connects heat exchanger plates.
Further, state quick-frozen end evaporator and be provided with the second heating power expansion valve.
Again further, high stage compressor group comprises more than two compressors be arranged in parallel.
Utility model works principle is: at the quick-frozen initial stage, electric cabinet controls the second stop valve and closes, first, three stop valves are opened, first, two compressor bank are in parallel, the gas of HTHP feeding is entered oil eliminator and the lubricating oil separation in gas is out got back to compressor by the compressor of two stages of compression unit, refrigerant gas enters the refrigerant liquid that condenser condenses into high pressure after supercooling, expansion valve reducing pressure by regulating flow is entered again to corresponding evaporating pressure after device for drying and filtering dry filter, the liquid becoming low-temp low-pressure enters quick-freezing plant end and evaporates, absorb the heat of article in quick-freezing plant, the article temperature be cooled is lowered, from quick-freezing plant end, the gas of low-temp low-pressure out gets back to compressor after gas-liquid separator, so move in circles, now first, two-stage compression unit is made single stage compress and is used.
When temperature drops to certain numerical value, close first, three stop valves, open the second stop valve, the gas that the refrigerant gas that the compressor of high stage compressor group sucks low-temp low-pressure is compressed into HTHP is sent into after first order compressor continues second-compressed pressurization and is entered oil eliminator, lubricating oil separation in gas is out got back to compressor, refrigerant gas enters the refrigerant liquid that condenser condenses into high pressure after supercooling, expansion valve reducing pressure by regulating flow is entered again to corresponding evaporating pressure after device for drying and filtering dry filter, the liquid becoming low-temp low-pressure enters quick-freezing plant end and evaporates, absorb the heat of article in quick-freezing plant, the article temperature be cooled is lowered, from quick-freezing plant end, the gas of low-temp low-pressure out gets back to the compressor of high stage compressor group after gas-liquid separator, so move in circles, until in quick-freezing plant end article temperature drop to the temperature required, refrigeration system stops circulation, now, first, split-compressor is made two-stage compression and is used.
Compared with prior art, the utility model has the advantages that: due to large calorimetric will be discharged by quick-frozen article when freezing point, now required evaporating temperature need not reach the lower evaporating temperature that two-stage compression reaches, only need single stage compress just to meet the demands, increase refrigerating capacity and meet refrigerating capacitys a large amount of needed for the quick-frozen initial stage; When temperature drops to certain numerical value, when increase refrigerating capacity can not meet the requirement of lower temperature, need to improve refrigeration degree, after two-stage compression, can effectively improve refrigeration degree, meet the requirement of refrigeration temperature drop.Between expansion valve and quick-freezing plant end equipment, heat exchanger is set, the refrigerant heat exchanger that heat exchanger and the first hot journey deliver to quick-freezing plant end equipment is delivered to by the heating power expansion valve reducing pressure by regulating flow of the second hot journey, the cold-producing medium reducing pressure by regulating flow sent by expansion valve further, improves refrigeration.
The utility model controls operate respectively single-stage and multi-stage compression of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel by converter technique and meets the requirement of refrigerating capacity and refrigeration degree, to meet broader operating condition scope, and the environmental protection because of frequency conversion minimizing energy consumption simultaneously.Freeze the fish of high-quality or test specimen for all kinds of fishing boat and science examination ship's speed to be quickly cooled to and to require that temperature provides efficient mixed type low-temperature quick-freezing device peculiar to vessel, ensure that the quality of fish and test specimen therefore have characteristic, overall economic efficiency is significantly improved, and has not only saved the energy but also environmental protection.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: the first compressor 1, second compressor the 2, three compressor 3, first stop valve 4, second stop valve the 5, three stop valve 6, condenser 7, device for drying and filtering 8, refrigerant charging geat 9, expansion valve 10, the first heating power expansion valve 11, heat exchanger 12, second heating power expansion valve 13, quick-freezing plant end equipment 14, gas-liquid separator 15, electric cabinet 16.
Detailed description of the invention
Be described further below in conjunction with accompanying drawing.
Shown in Fig. 1, a kind of mixed type frequency conversion low-temperature quick-freezing device first compressor 1, second compressor 2 peculiar to vessel, the 3rd compressor 3, first stop valve 4, second stop valve 5, the 3rd stop valve 6, condenser 7, device for drying and filtering 8, refrigerant charging geat 9, expansion valve 10, first heating power expansion valve 11, heat exchanger 12, second heating power expansion valve 13, quick-freezing plant end equipment 14, gas-liquid separator 15 and electric cabinet 16.The gas outlet of the first compressor 1 connects condenser 7 air inlet through oil eliminator, the gas outlet of high stage compressor 2 is connected condenser 7 air inlet through the first stop valve 4 respectively with the gas outlet of third level compressor 3 after two oil eliminator parallel connections, condenser 7 liquid outlet connects expansion valve 10, between condenser 7 and expansion valve 10, pipeline is provided with refrigerant charging geat 9, expansion valve 10 fluid divides two-way, quick-freezing plant end equipment 14 import is connected through the second heating power expansion valve 13 after the first hot journey of 12 is changed in first via connection, second tunnel first heating power expansion valve 11 connects the second hot journey of heat exchanger 12, freeze device end equipment 14 to export after gas-liquid separator 15 the hot journey fluid with second and merge point three tunnels, one tunnel the 3rd stop valve 6 connects the liquid return hole of the first compressor 1, another two-way connects second respectively, three compressors 2, the liquid return hole of 3.First, second and third compressor, first, second and third stop valve, first and second heating power expansion valve, refrigerant charging geat 9, quick-freezing plant end equipment 14 all connect electric cabinet 16.
Claims (5)
1. a mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel, comprise compressor bank, condenser, device for drying and filtering, expansion valve, quick-frozen end evaporimeter and gas-liquid separator, compressor bank is successively through condenser, device for drying and filtering, expansion valve connects quick-frozen end evaporator, quick-frozen end evaporator outlet connects compressor bank through gas-liquid separator, it is characterized in that: described compressor bank comprises two stages of compression unit, the gas outlet of first order compressor bank and the gas outlet of high stage compressor group are connected in parallel to condenser, gas-liquid separator connects the liquid return hole of first order compressor bank and the liquid return hole of high stage compressor group respectively, the first stop valve is provided with between the gas outlet of high stage compressor group and condenser, the liquid return hole of first order compressor bank to be connected between the gas outlet of high stage compressor group and the first stop valve on pipeline through the second stop valve, the 3rd stop valve is provided with between the liquid return hole of gas-liquid separator and first order compressor bank, first, second and third stop valve, first and second stage compressor group are all connected electric cabinet with quick-frozen end evaporimeter.
2. one according to claim 1 mixed type frequency conversion peculiar to vessel low-temperature quick-freezing device, is characterized in that: be provided with refrigerant charging geat between described device for drying and filtering and expansion valve.
3. one according to claim 1 mixed type frequency conversion peculiar to vessel low-temperature quick-freezing device, it is characterized in that: between described expansion valve and quick-frozen end evaporimeter, be provided with heat exchanger plates, expansion valve separates two-way, one tunnel connects quick-frozen end evaporator through the first hot journey of heat exchanger plates, and another road connects the liquid return hole of first and second stage compressor group again after the second hot journey that the first heating power expansion valve connects heat exchanger plates.
4. the mixed type frequency conversion peculiar to vessel of the one according to claim 1 or 3 low-temperature quick-freezing device, is characterized in that: described quick-frozen end evaporator is provided with the second heating power expansion valve.
5. one according to claim 1 mixed type frequency conversion peculiar to vessel low-temperature quick-freezing device, is characterized in that: described high stage compressor group comprises more than two compressors be arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863077.7U CN204574590U (en) | 2014-12-31 | 2014-12-31 | A kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863077.7U CN204574590U (en) | 2014-12-31 | 2014-12-31 | A kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel |
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| Publication Number | Publication Date |
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| CN204574590U true CN204574590U (en) | 2015-08-19 |
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| CN201420863077.7U Active CN204574590U (en) | 2014-12-31 | 2014-12-31 | A kind of mixed type frequency conversion low-temperature quick-freezing device peculiar to vessel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567063A (en) * | 2014-12-31 | 2015-04-29 | 江苏兆胜空调有限公司 | Marine mixed variable frequency low-temperature quick freezing device |
| CN106352587A (en) * | 2016-10-31 | 2017-01-25 | 广东美芝制冷设备有限公司 | Refrigerating system |
-
2014
- 2014-12-31 CN CN201420863077.7U patent/CN204574590U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567063A (en) * | 2014-12-31 | 2015-04-29 | 江苏兆胜空调有限公司 | Marine mixed variable frequency low-temperature quick freezing device |
| CN106352587A (en) * | 2016-10-31 | 2017-01-25 | 广东美芝制冷设备有限公司 | Refrigerating system |
| CN106352587B (en) * | 2016-10-31 | 2019-05-24 | 广东美芝制冷设备有限公司 | Refrigeration system |
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