CN103322710A - Enhanced vapor injection parallel compression condensing unit - Google Patents
Enhanced vapor injection parallel compression condensing unit Download PDFInfo
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- CN103322710A CN103322710A CN2013102386064A CN201310238606A CN103322710A CN 103322710 A CN103322710 A CN 103322710A CN 2013102386064 A CN2013102386064 A CN 2013102386064A CN 201310238606 A CN201310238606 A CN 201310238606A CN 103322710 A CN103322710 A CN 103322710A
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Abstract
The invention relates to an enhanced vapor injection parallel compression condensing unit. A compressor unit is connected with an inlet of a first flow path of a plate type heat exchanger sequentially through an oil-gas separator, a condenser and a liquid accumulator, an outlet of the first flow path is sequentially connected with a cooling load and an air suction inlet of the compressor unit through a main pipeline, an inlet of a second flow path of the plate type heat exchanger is connected with an outlet of the first flow path through an auxiliary pipeline, an outlet of the second flow path is connected with the air suction inlet of the compressor unit, and a plurality of groups of throttling devices in parallel connection are arranged on the auxiliary pipeline between the outlet of the first flow path and the inlet of the second flow path of the plate type heat exchanger. After coolants pass the first flow path of the plate type heat exchanger, distributed coolants pass a mechanical expansion valve and absorb heat for the first flow path in the second flow path of the plate type heat exchanger, the super-cooling degree of the coolants flowing through the first flow path is improved, the cooling capacity and the energy efficiency ratio of the unit are improved, and energy conservation and environmental protection are realized.
Description
Technical field
The present invention relates to a kind of Condensing units, particularly a kind of steam jet enthalpy Condensing units in parallel.
Background technology
The closed system that general refrigeration system is comprised of compressor, condenser, restricting element, evaporimeter etc., fill an amount of cold-producing medium in the closed system, under the compressor effect, cold-producing medium returns compressor by compressor compresses by condenser, restricting element and evaporimeter, cold-producing medium carries out heat exchange in evaporimeter, realized the indoor process of refrigerastion that condenser heat extraction, evaporimeter absorb heat.Evaporimeter is when low evaporating temperature operation, and compressor pressure ratios increases, and displacement and Energy Efficiency Ratio significantly descend, and the delivery temperature of compressor is higher simultaneously, affects the refrigeration system safety in operation.
Summary of the invention
The object of the present invention is to provide steam jet enthalpy a kind of simple in structure, energy-conservation, efficient Condensing units in parallel.
In order to achieve the above object, the technical solution used in the present invention is: a kind of steam jet enthalpy Condensing units in parallel, by compressor bank, gs-oil separator, condenser and reservoir are connected in sequence, it is characterized in that: connect a plate type heat exchanger behind the described reservoir, the import of the first pass of plate type heat exchanger connects the reservoir outlet, the outlet of first pass connects refrigeration load and compressor bank suction inlet successively through main line, the import of the second flow process of plate type heat exchanger connects the outlet of first pass through auxiliary pipeline, the outlet of the second flow process connects the compressor bank suction inlet; Auxiliary pipeline between the import of the outlet of the first pass of described plate type heat exchanger and the second flow process is provided with many groups throttling arrangements in parallel.
Described throttling arrangement comprises magnetic valve and mechanical swelling valve, and magnetic valve connects mechanical expansion valve.
The corresponding compressor bank suction inlet of the mechanical swelling valve temperature-sensitive bag of described a plurality of throttling arrangements arranges.
Described compressor bank suction inlet comprises and is communicated with the compressor air suction mouth and is communicated with compressor intergrade air entry, the outlet of the second flow process of plate type heat exchanger connects compressor bank intergrade air entry, and a plurality of compressor air suction mouths of the corresponding compressor bank of the mechanical swelling valve temperature-sensitive bag of a plurality of throttling arrangements arrange.
Compared with prior art, the beneficial effect that the present invention reaches is: the cold-producing medium after the compressor compresses is delivered to plate type heat exchanger after condenser condenses, cold-producing medium is delivered to the second flow process and refrigeration load through auxiliary pipeline and main line respectively by first pass, step-down becomes the low-pressure low-temperature refrigerant with the mechanical swelling valve through magnetic valve successively entering the second Cheng Qian, the low-pressure low-temperature refrigerant carries out pre-heating heat-exchanging with cold-producing medium in plate type heat exchanger after, get back to compressor bank intergrade air entry, offer compressor mixing compression, increase the compressor air-discharging amount, improve compressor efficiency.The refrigerant liquid temperature of delivering to simultaneously evaporimeter further reduces, and enthalpy difference increases in the refrigeration major loop, is convenient to improve refrigeration and efficient, plays energy-saving effect; The present invention sets up a plate type heat exchanger between condenser and refrigeration load, cold-producing medium is behind the plate type heat exchanger first pass, the splitter section cold-producing medium absorbs heat to first pass in plate type heat exchanger the second flow process through the mechanical swelling valve, improved the cold-producing medium degree of supercooling in the first pass of flowing through, promote refrigerating capacity and the Energy Efficiency Ratio of equipment, reached the purpose of energy-conserving and environment-protective.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: compressor bank 1, air entry 2, intergrade air entry 3, gs-oil separator 4, condenser 5, reservoir 6, plate type heat exchanger 7, first pass 8, first pass import 81,9, the second flow process imports 92 of first pass outlet 82, the second flow processs, the second flow process outlet 91, magnetic valve 10, mechanical swelling valve 11, refrigeration load 12, main line 13, auxiliary pipeline 14.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Shown in Figure 1, a kind of steam jet enthalpy Condensing units in parallel comprises compressor bank 1, gs-oil separator 4, condenser 5, reservoir 6, plate type heat exchanger 7, magnetic valve 10, mechanical swelling valve 11, main line 13 and auxiliary pipeline 14.Compressor bank 1, gs-oil separator 4, condenser 5 is connected with reservoir successively and is connected, the first pass import 81 of reservoir 6 outlet connecting plate type heat exchangers 7 first passes 8, first pass outlet 82 connects refrigeration load 12 successively through main line 13, auxiliary pipeline 14 between the second flow process import 92 of the outlet 82 of the first pass of plate type heat exchanger 7 and the second flow process 9 is provided with the throttling arrangements in parallel of organizing more, throttling arrangement is magnetic valve 10 and mechanical swelling valve 11, magnetic valve 10 connects mechanical expansion valve 11, the temperature-sensitive bag of the mechanical swelling valve 11 of the multiple throttling device respectively air entry 2 of the multi-compressor of corresponding compressor bank 1 arranges, the second flow process outlet 91 of plate type heat exchanger 7 is communicated with compressor bank 1 intergrade air entry 3, and refrigeration load 12 is communicated with the air entry 2 of compressor bank 1 multiple compressors.
The course of work of the present invention is: the high temperature that compressor bank is discharged, higher pressure refrigerant gas, after condenser condenses, become liquid, refrigerant liquid enters in the plate type heat exchanger first pass, become subcooled liquid after the heat exchange, out subcooled liquid is divided into main road and bypass, the refrigerant liquid of bypass enters in board-like heat exchanger the second flow process through the throttling arrangement reducing pressure by regulating flow is laggard, with become gas after the heat exchange of plate type heat exchanger first pass refrigerant liquid, intergrade air entry by compressor bank sucks, main road cold-producing medium subcooled liquid is sent into refrigeration load, become low-pressure gas after the heat exchange, sucked by the compressor air suction mouth, the refrigerant gas that intergrade and low-pressure stage suck mixes in the compressor compresses process, forms high temperature, gases at high pressure are discharged compressor, form closed circulation.
Claims (4)
1. steam jet enthalpy Condensing units in parallel, be connected in sequence by compressor bank, gs-oil separator, condenser and reservoir, it is characterized in that: connect a plate type heat exchanger behind the described reservoir, the import of the first pass of plate type heat exchanger connects the reservoir outlet, the outlet of first pass connects refrigeration load and compressor bank suction inlet successively through main line, the import of the second flow process of plate type heat exchanger connects the outlet of first pass through auxiliary pipeline, the outlet of the second flow process connects the compressor bank suction inlet; Auxiliary pipeline between the import of the outlet of the first pass of described plate type heat exchanger and the second flow process is provided with many groups throttling arrangements in parallel.
2. a kind of steam jet enthalpy according to claim 1 Condensing units in parallel, it is characterized in that: described throttling arrangement comprises magnetic valve and mechanical swelling valve, and magnetic valve connects mechanical expansion valve.
3. a kind of steam jet enthalpy according to claim 2 Condensing units in parallel is characterized in that: the corresponding compressor bank suction inlet setting of the mechanical swelling valve temperature-sensitive bag of described a plurality of throttling arrangements.
4. a kind of steam jet enthalpy according to claim 3 Condensing units in parallel, it is characterized in that: described compressor bank suction inlet comprises and is communicated with the compressor air suction mouth and is communicated with compressor intergrade air entry, the outlet of the second flow process of plate type heat exchanger connects compressor bank intergrade air entry, and a plurality of compressor air suction mouths of the corresponding compressor bank of the mechanical swelling valve temperature-sensitive bag of a plurality of throttling arrangements arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102386064A CN103322710A (en) | 2013-06-17 | 2013-06-17 | Enhanced vapor injection parallel compression condensing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102386064A CN103322710A (en) | 2013-06-17 | 2013-06-17 | Enhanced vapor injection parallel compression condensing unit |
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| CN103322710A true CN103322710A (en) | 2013-09-25 |
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| CN2013102386064A Pending CN103322710A (en) | 2013-06-17 | 2013-06-17 | Enhanced vapor injection parallel compression condensing unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258393A (en) * | 2015-10-16 | 2016-01-20 | 珠海格力电器股份有限公司 | Heat pump set control system |
| CN110285599A (en) * | 2019-07-18 | 2019-09-27 | 四川骐成新能源科技有限公司 | A kind of multifunctional heat pump drying dehumidification freshness preserving equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007139225A (en) * | 2005-11-15 | 2007-06-07 | Hitachi Ltd | Refrigerating device |
| CN200996753Y (en) * | 2006-12-26 | 2007-12-26 | 海信集团有限公司 | Refrigerating system of intermediate air-compensating compressor with economizer |
| CN101852502A (en) * | 2009-02-18 | 2010-10-06 | 艾默生环境优化技术有限公司 | Has the condensing unit that fluid sprays |
| CN202328888U (en) * | 2011-11-15 | 2012-07-11 | 宁波惠康实业有限公司 | Refrigeration system |
| CN203364493U (en) * | 2013-06-17 | 2013-12-25 | 江苏科立德制冷设备有限公司 | Vapor emission and enthalpy difference increasing parallel compression condensing unit |
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2013
- 2013-06-17 CN CN2013102386064A patent/CN103322710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007139225A (en) * | 2005-11-15 | 2007-06-07 | Hitachi Ltd | Refrigerating device |
| CN200996753Y (en) * | 2006-12-26 | 2007-12-26 | 海信集团有限公司 | Refrigerating system of intermediate air-compensating compressor with economizer |
| CN101852502A (en) * | 2009-02-18 | 2010-10-06 | 艾默生环境优化技术有限公司 | Has the condensing unit that fluid sprays |
| CN202328888U (en) * | 2011-11-15 | 2012-07-11 | 宁波惠康实业有限公司 | Refrigeration system |
| CN203364493U (en) * | 2013-06-17 | 2013-12-25 | 江苏科立德制冷设备有限公司 | Vapor emission and enthalpy difference increasing parallel compression condensing unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258393A (en) * | 2015-10-16 | 2016-01-20 | 珠海格力电器股份有限公司 | Heat pump set control system |
| WO2017063591A1 (en) * | 2015-10-16 | 2017-04-20 | 珠海格力电器股份有限公司 | Heat pump unit control system |
| US10393417B2 (en) | 2015-10-16 | 2019-08-27 | Gree Electric Appliances, Inc. Of Zhuhai | Heat pump unit control system with enhanced vapor injection capabilities for upstream and downstream liquid extraction |
| CN110285599A (en) * | 2019-07-18 | 2019-09-27 | 四川骐成新能源科技有限公司 | A kind of multifunctional heat pump drying dehumidification freshness preserving equipment |
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Application publication date: 20130925 |