CN103017389B - High-precision temperature control type heat exchange system - Google Patents
High-precision temperature control type heat exchange system Download PDFInfo
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- CN103017389B CN103017389B CN201210360634.9A CN201210360634A CN103017389B CN 103017389 B CN103017389 B CN 103017389B CN 201210360634 A CN201210360634 A CN 201210360634A CN 103017389 B CN103017389 B CN 103017389B
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- expansion valve
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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
Abstract
The invention discloses a kind of High-precision temperature control type heat exchange system, it comprises refrigerator, described refrigerator comprises compressor, condenser, heat exchanger, the output port of compressor is connected with the first input end mouth of condenser, first output port of condenser is connected with the first input end mouth of heat exchanger by the first electronic expansion valve gear, first output port of heat exchanger is connected with the input port of described compressor, the output port of compressor is also connected with the first input end mouth of heat exchanger by the second electronic expansion valve gear, first output port of condenser is connected with the input port of compressor by the 3rd electronic expansion valve gear, wherein, first electronic expansion valve gear and the second electronic expansion valve gear include the separate electronic expansion valve cell of multiple parallel connection.Compared with prior art, the present invention by arranging the parallel drive of electric expansion valve in the refrigerator of heat-exchange system, thus realizes the accurate control of high-power heat-exchange system cold medium flux.
Description
Technical field
The present invention relates to field of heat exchange, particularly relate to a kind of High-precision temperature control type heat exchange system.
Background technology
Utilizing refrigerator to carry out temperature controlled system, is adopt the flow after controlling refrigerator refrigerant (freon) expansion to reach to control the temperature of temperature control object mostly.And need controlled object (equipment) usually to need another one steady temperature or needs a variable temperature range, such as, certain temperature in-20 degree ~ 80 degree Celsius.Conventional method uses another liquid or gas (liquid or gas, hereinafter referred to as circulation of fluid) carry out heat exchange with above-mentioned refrigerator refrigerant (freon) by heat exchanger and reach accurate circulating fluid temperature and controls, utilize described circulation of fluid to go the temperature of control temperature control object afterwards.This heat exchange is that the flow by controlling refrigerator refrigerant (freon) regulates hot exchange power, mostly the flow of usual refrigerant is to have been come by the magnetic valve of ON/OFF (ON/OFF) action or mechanical thermal expansion valve or capillary etc., and these expansion valves are all difficult to control accurately cold medium flux.
Therefore, be necessary that the technical scheme proposing a kind of improvement solves the problems referred to above.
Summary of the invention
For problems of the prior art, the present invention proposes a kind of heat-exchange system, and it can realize the accurate control of the cold medium flux of refrigerator in high-power heat-exchange system, thus the accurate temperature realizing controlled device controls.
In order to solve the problem, the present invention proposes a kind of heat-exchange system, it comprises refrigerator, described refrigerator comprises compressor, condenser, heat exchanger, refrigerant in described refrigerator and cooling fluid carry out heat exchange at condenser place, refrigerant in circulation of fluid and described refrigerator carries out heat exchange at heat exchanger place, described condenser comprises first input end mouth, the first output port be communicated with first input end mouth, second input port and the second output port be communicated with the second input port, described heat exchanger comprises first input end mouth, the first output port be communicated with first input end mouth, second input port and the second output port be communicated with the second input port, described refrigerator also comprises the first electronic expansion valve gear, second electronic expansion valve gear and the 3rd electronic expansion valve gear, the output port of described compressor is connected with the first input end mouth of described condenser, first output port of described condenser is connected with the first input end mouth of heat exchanger by the first electronic expansion valve gear, first output port of described heat exchanger is connected with the input port of described compressor, the output port of described compressor is also connected with the first input end mouth of heat exchanger by the second electronic expansion valve gear, first output port of described condenser is also connected with the input port of described compressor by the 3rd electronic expansion valve gear, described circulation of fluid flows into from the second input port of described heat exchanger, flows out from the second output port of described heat exchanger, and described cooling fluid flows into from the second input port of described condenser, flows out from the second output port of described condenser.
Further, first electronic expansion valve gear and the second electronic expansion valve gear include the separate electronic expansion valve cell of multiple parallel connection, described heat-exchange system also comprise be arranged at described circulation of fluid path on the temperature sensor for detecting described circulation of fluid temperature, the circulation of fluid temperature detected based on described temperature sensor controls each electronic expansion valve gear.The switch ratio of wherein said electronic expansion valve cell is controlled.
Further, refrigerant in described refrigerator has three paths, Article 1, path is: the refrigerant flowed out from the output port of described compressor, and the input port through the first input end mouth of the first input end mouth of described condenser and the first output port, the first electronic expansion valve gear, described heat exchanger and the first output port, compressor flows back to described compressor; Article 2 path is the refrigerant flowed out from the output port of described compressor, and the input port through the first input end mouth of the second electronic expansion valve gear, described heat exchanger and the first output port, compressor flows back to described compressor; Article 3 path is: the refrigerant flowed out from the output port of described compressor, and the input port through the first input end mouth of described condenser and the first output port, the 3rd electronic expansion valve gear, compressor flows back to described compressor.
Further, the suction that described refrigerator also comprises in the path being arranged on described refrigerant stores pond, receiving tank, drier and form, first output port of described condenser is communicated with the input port of described receiving tank, the output port of described receiving tank is communicated with the input port of the 3rd electronic expansion valve gear with the input port of the first electronic expansion valve gear with form through drier, the input port that described suction stores pond is communicated with the first output port of described heat exchanger with the output port of the 3rd electronic expansion valve gear, the output port that described suction stores pond is communicated with the input port of described compressor.
Further, described heat-exchange system also comprise be arranged at described circulation of fluid path on the circulation of fluid tank for storing described circulation of fluid, heater strip is provided with, according to the enable described heater strip of circulation of fluid temperature that described temperature sensor detects in described fluid tank.
Further, described heat-exchange system also comprises pump on the path being arranged at described circulation of fluid and motor, to drive the flowing of described circulation of fluid.
Further, after the entrance of described circulation of fluid path with before the outlet of described circulation of fluid path, the by-passing valve being communicated with described circulation of fluid pipeline is also provided with.
Further, described circulation of fluid is liquid or gas, and described cooling fluid is cooling water.
Compared with prior art, the present invention by arranging the parallel drive of electric expansion valve in the refrigerator of heat-exchange system, thus realizes the accurate control of high-power heat-exchange system cold medium flux, and then the accurate temperature realizing controlled device controls.
Accompanying drawing explanation
Fig. 1 is the heat-exchange system structural representation in one embodiment in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
Alleged herein " embodiment " or " embodiment " refers to that the special characteristic relevant to described embodiment, structure or characteristic at least can be contained at least one implementation of the present invention.Different local in this manual " in one embodiment " occurred be non-essential all refers to same embodiment, must not be yet with other embodiments mutually exclusive separately or select embodiment.In addition, represent sequence of modules in the method for one or more embodiment, flow chart or functional block diagram and revocablely refer to any particular order, not also being construed as limiting the invention.
Fig. 1 is High-precision temperature control type heat exchange system 100 structural representation in one embodiment in the present invention.As shown in Figure 1, described heat-exchange system 100 comprises refrigerator 110, cooling fluid pathways 120 and circulation of fluid path 130.
Described refrigerator 110 comprises compressor 112, condenser 114, heat exchanger 115(or be called evaporimeter), the first electronic expansion valve gear ELV1, the second electronic expansion valve gear ELV2 and the 3rd electronic expansion valve gear ELV3.Refrigerant in described refrigerator 110 and the cooling fluid in cooling fluid pathways 120 carry out heat exchange at condenser 114 place; Refrigerant in circulation of fluid in circulation of fluid path 130 and described refrigerator 110 carries out heat exchange at heat exchanger 115 place.
The second output port that described condenser 114 comprises first input end mouth, the first output port be communicated with first input end mouth, the second input port and is communicated with the second input port.The second output port that described heat exchanger 115 comprises first input end mouth, the first output port be communicated with first input end mouth, the second input port and is communicated with the second input port.
The output port of described compressor 112 is connected with the first input end mouth of described condenser 114, first output port of described condenser 114 is connected with the first input end mouth of heat exchanger 115 by the first electronic expansion valve gear ELV1, first output port of described heat exchanger 115 is connected with the input port of described compressor 112, the output port of described compressor 112 is also connected with the first input end mouth of heat exchanger 115 by the second electronic expansion valve gear ELV2, first output port of described condenser 114 is connected with the input port of described compressor 112 by the 3rd electronic expansion valve gear ELV3.Wherein, the first electronic expansion valve gear ELV1 and the second electronic expansion valve gear ELV1 includes the separate electronic expansion valve cell of multiple parallel connection.Because the flow bore of Single Electron expansion valve unit is general less, generally this electronic expansion valve cell is not adopted in heat exchange applications in high-power, and in the present invention by the bulk flow bore of the whole electromagnetism expansion gear that adopts the mode of multiple electronic expansion valve cell parallel connection to increase, thus can meet high-power in heat exchange applications.In addition, the switch ratio of each electronic expansion valve cell is adjustable, and such as 100% is opened into 0% unlatching, every 5% 1 adjustment grade, so then has 0%, 5%, 10%,, 95%, 100% much more so switch proportion grades, like this relative to the bulk flow bore of whole electronic expansion valve gear, can the flow that flows through of point-device adjustment refrigerant, thus the power of heat exchange can be controlled accurately, and then the temperature of accurate controlled circulation fluid.Each electronic expansion valve cell comprises electronic expansion valve and controls the stepper motor of switch ratio or the direct current generator of described electronic expansion valve, controls the switch ratio of described electronic expansion valve by controlling described stepper motor or direct current generator.
Can find out, refrigerant in described refrigerator 110 has three paths, Article 1, path is the refrigerant flowed out from the output port of described compressor 112, and the input port through the first input end mouth of the first input end mouth of described condenser 114 and the first output port, the first electronic expansion valve gear ELV1, described heat exchanger 115 and the first output port, compressor 112 flows back to described compressor; Article 2 path is the refrigerant flowed out from the output port of described compressor 112, and the input port through the first input end mouth of the second electronic expansion valve gear ELV2, described heat exchanger 115 and the first output port, compressor 112 flows back to described compressor; Article 3 path is the refrigerant flowed out from the output port of described compressor 112, and the input port through the first input end mouth of described condenser 114 and the first output port, the 3rd electronic expansion valve gear ELV3, compressor 112 flows back to described compressor.
In the present embodiment, the suction that described refrigerator 110 also comprises in the path being arranged on described refrigerant stores pond 116, receiving tank 117, drier 118 and form 119, first output port of described condenser 114 is communicated with the input port of described receiving tank 117, the output port of described receiving tank 117 is communicated with the input port of the 3rd electronic expansion valve gear ELV3 with the input port of the first electronic expansion valve gear ELV1 with form 119 through drier 118, the input port that described suction stores pond 116 is communicated with the first output port of described heat exchanger 115 with the output port of the 3rd electronic expansion valve gear ELV3, the output port that described suction stores pond 116 is communicated with the input port of described compressor 112.
Described cooling fluid pathways 120 comprises the cooling fluid pathways entrance 122 be communicated with condenser 114 second input port and the cooling fluid pathways be communicated with condenser 114 second output port exports 124.Described cooling fluid flows into from the second input port of described condenser 114, flows out from the second output port of described condenser 114.In the present embodiment, described cooling fluid pathways 120 is also provided with temperature sensor 126, it is for detecting the temperature of described cooling fluid.
Described circulation of fluid path 130 comprises the circulation of fluid path entrance 132 be communicated with the second input port of heat exchanger 115 and the circulation of fluid lane exit 134 be communicated with heat exchanger 115 second output port.Described circulation of fluid flows into from the second input port of described heat exchanger 115, flows out from the second output port of heat exchanger 115.Described heat-exchange system also comprises the temperature sensor 136 for detecting described circulation of fluid temperature be arranged on described circulation of fluid path 130, the circulation of fluid temperature detected based on described temperature sensor 136 controls the switch ratio of each electronic expansion valve gear ELV1, ELV2 and ELV3, thus realize the accurate control of the cold medium flux of refrigerator in heat-exchange system, and then the accurate temperature realizing controlled device controls.In the present embodiment, after described circulation of fluid pipeline entrance 132 and before described circulation of fluid pipe outlet 134, the temperature sensor 136 that one is detected described circulation of fluid temperature is respectively arranged with.
In the present embodiment, described heat-exchange system also comprises the circulation of fluid tank 137 for storing described circulation of fluid be arranged on described circulation of fluid path, be arranged at pump 138 and the motor 139 of the flowing in order to drive described circulation of fluid on the path of described circulation of fluid, and the by-passing valve 133 arranged after described circulation of fluid path entrance 132 and before described circulation of fluid lane exit 134.In described fluid tank 137, be provided with heater strip HT, its circulation of fluid temperature that can detect according to described temperature sensor 136 makes described heater strip HT start or quit work.
In the present embodiment, described circulation of fluid is liquid or gas, and described cooling fluid is cooling water.
In sum, heat-exchange system of the present invention by arranging the first electronic expansion valve gear ELV1 between first output port and the first input end mouth of heat exchanger 115 of described condenser 114; Second electronic expansion valve gear ELV2 is set between the output port and the first input end mouth of heat exchanger 115 of described compressor 112; 3rd electronic expansion valve gear ELV3 is set between first output port and the input port of described compressor 112 of described condenser 114, and the first electronic expansion valve gear and the second electronic expansion valve gear comprise the separate electronic expansion valve cell of multiple parallel connection.The temperature sensor 136 for detecting described circulation of fluid temperature be arranged on described circulation of fluid path 130 is also comprised in described heat-exchange system, the circulation of fluid temperature detected based on described temperature sensor controls the switch ratio of each electronic expansion valve gear, thus realize the accurate control of the cold medium flux of refrigerator in heat-exchange system, and then the accurate temperature realizing controlled device controls.
Although describe the present invention by embodiment, those of ordinary skill in the art know, the present invention has many distortion and change and do not depart from spirit of the present invention, and the claim appended by wishing comprises these distortion and change and do not depart from spirit of the present invention.
Claims (4)
1. a heat-exchange system, it comprises refrigerator, and described refrigerator comprises compressor, condenser, heat exchanger, and the refrigerant in described refrigerator and cooling fluid carry out heat exchange at condenser place, refrigerant in circulation of fluid and described refrigerator carries out heat exchange at heat exchanger place
The second output port that described condenser comprises first input end mouth, the first output port be communicated with first input end mouth, the second input port and is communicated with the second input port,
The second output port that described heat exchanger comprises first input end mouth, the first output port be communicated with first input end mouth, the second input port and is communicated with the second input port, is characterized in that,
Described refrigerator also comprises the first electronic expansion valve gear, second electronic expansion valve gear and the 3rd electronic expansion valve gear, the output port of described compressor is connected with the first input end mouth of described condenser, first output port of described condenser is connected with the first input end mouth of heat exchanger by the first electronic expansion valve gear, first output port of described heat exchanger is connected with the input port of described compressor, the output port of described compressor is also connected with the first input end mouth of heat exchanger by the second electronic expansion valve gear, first output port of described condenser is also connected with the input port of described compressor by the 3rd electronic expansion valve gear,
Described circulation of fluid flows into from the second input port of described heat exchanger, flows out from the second output port of described heat exchanger, and described cooling fluid flows into from the second input port of described condenser, flows out from the second output port of described condenser,
First electronic expansion valve gear and the second electronic expansion valve gear include the separate electronic expansion valve cell of multiple parallel connection, described heat-exchange system also comprises the temperature sensor for detecting described circulation of fluid temperature be arranged on described circulation of fluid path, the circulation of fluid temperature detected based on described temperature sensor controls the switch ratio of each electronic expansion valve gear
The switch ratio of described electronic expansion valve cell is controlled,
The suction that described refrigerator also comprises in the path being arranged on described refrigerant stores pond, receiving tank, drier and form, first output port of described condenser is communicated with the input port of described receiving tank, the output port of described receiving tank is communicated with the input port of the 3rd electronic expansion valve gear with the input port of the first electronic expansion valve gear with form through drier, the input port that described suction stores pond is communicated with the first output port of described heat exchanger with the output port of the 3rd electronic expansion valve gear, the output port that described suction stores pond is communicated with the input port of described compressor,
Described heat-exchange system also comprise be arranged at described circulation of fluid path on the circulation of fluid tank for storing described circulation of fluid, heater strip is provided with in described fluid tank, make described heater strip start or quit work according to the circulation of fluid temperature that described temperature sensor detects, after the entrance of described circulation of fluid path with before the outlet of described circulation of fluid path, be also provided with the by-passing valve being communicated with described circulation of fluid pipeline.
2. heat-exchange system according to claim 1, it is characterized in that, refrigerant in described refrigerator has three paths, Article 1, path is: the refrigerant flowed out from the output port of described compressor, and the input port through the first input end mouth of the first input end mouth of described condenser and the first output port, the first electronic expansion valve gear, described heat exchanger and the first output port, compressor flows back to described compressor; Article 2 path is: the refrigerant flowed out from the output port of described compressor, and the input port through the first input end mouth of the second electronic expansion valve gear, described heat exchanger and the first output port, compressor flows back to described compressor; Article 3 path is: the refrigerant flowed out from the output port of described compressor, and the input port through the first input end mouth of described condenser and the first output port, the 3rd electronic expansion valve gear, compressor flows back to described compressor.
3. heat-exchange system according to claim 1, is characterized in that, described heat-exchange system also comprises and is arranged at pump on described circulation of fluid path and motor, to drive the flowing of described circulation of fluid.
4. heat-exchange system according to claim 1, is characterized in that, described circulation of fluid is liquid or gas, and described cooling fluid is cooling water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210360634.9A CN103017389B (en) | 2012-09-25 | 2012-09-25 | High-precision temperature control type heat exchange system |
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| CN201210360634.9A CN103017389B (en) | 2012-09-25 | 2012-09-25 | High-precision temperature control type heat exchange system |
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| CN103017389A CN103017389A (en) | 2013-04-03 |
| CN103017389B true CN103017389B (en) | 2015-09-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104423396B (en) * | 2013-08-27 | 2016-12-28 | 上海微电子装备有限公司 | High-precision gas temperature control system and method |
| CN106482393A (en) * | 2016-12-01 | 2017-03-08 | 无锡溥汇机械科技有限公司 | A kind of auxiliary hot energy-saving heat-exchange system of frozen water machine |
| CN106482392A (en) * | 2016-12-01 | 2017-03-08 | 无锡溥汇机械科技有限公司 | A kind of two temperature one frozen water machine precision heat-exchange system |
| CN109032201A (en) * | 2017-06-09 | 2018-12-18 | 北京京仪自动化装备技术有限公司 | Semiconductor production temperature control device |
| CN111023606A (en) * | 2019-12-27 | 2020-04-17 | 无锡溥汇机械科技有限公司 | Large-flow small-temperature-difference precise temperature control heat exchange system |
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| US6244060B1 (en) * | 1999-07-30 | 2001-06-12 | Denso Corporation | Refrigeration cycle for vehicle air conditioner |
| CN101178272A (en) * | 2006-11-10 | 2008-05-14 | 海尔集团公司 | Air conditioner oil returning system |
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