CN202813859U - High-precision temperature-control heat exchange system - Google Patents
High-precision temperature-control heat exchange system Download PDFInfo
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- CN202813859U CN202813859U CN2012204916390U CN201220491639U CN202813859U CN 202813859 U CN202813859 U CN 202813859U CN 2012204916390 U CN2012204916390 U CN 2012204916390U CN 201220491639 U CN201220491639 U CN 201220491639U CN 202813859 U CN202813859 U CN 202813859U
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- output port
- expansion valve
- electronic expansion
- fluid
- compressor
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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 utility model discloses a high-precision temperature-control heat exchange system. The high-precision temperature-control heat exchange system comprises a refrigerator, wherein the refrigerator comprises a compressor, a condenser and a heat exchanger. An output end port of the compressor is communicated with a first input end port of the condenser. A first output end port of the condenser is communicated with a first input end port of the heat exchanger through a first electric expansion valve device. A first output end port of the heat exchanger is communicated with a first input end port of the compressor. The output end port of the compressor is further communicated with the first input end port of the heat exchanger through a second electric expansion valve device. The first output end port of the condenser is communicated with the input end of the compressor through a third electric expansion valve device. Both the first electric expansion valve device and the second electric expansion valve device comprise a plurality of electric expansion units, wherein the plurality of electric expansion units are independent and are connected in parallel. Compared with the prior art, the parallel driving of electric expansion valves is arranged in the condenser of the heat exchange system, and therefore precise control of refrigerant flow in a high-power heat exchange system is achieved.
Description
Technical field
The utility model relates to the heat exchange field, relates in particular to a kind of high precision temperature control heat-exchange system.
Background technology
Utilizing refrigerator to carry out temperature controlled system, is to adopt the flow of controlling after refrigerator refrigerant (freon) expands to reach the temperature of temperature control object is controlled mostly.And need controlled objects (equipment) usually to need another one steady temperature or one need to be a variable temperature range, certain temperature in-20 degree ~ 80 degree Celsius for example.Method commonly used is to use 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 the control of accurate circulating fluid temperature, utilize afterwards described circulation of fluid to go to control the temperature of temperature control object.This heat exchange is to regulate hot exchange power by the flow of control refrigerator refrigerant (freon), usually mostly the flow of refrigerant is to finish by magnetic valve or mechanical thermal expansion valve or the capillary etc. of ON/OFF (ON/OFF) action, and these expansion valves all are difficult to cold medium flux is controlled accurately.
Therefore, be necessary to propose a kind of improved technical scheme and solve the problems referred to above.
The utility model content
For problems of the prior art, the utility model proposes a kind of heat-exchange system, it can realize the accurate control of the cold medium flux of refrigerator in the high-power heat-exchange system, thereby realizes the accurate temperature control of controlled device.
In order to address the above problem, the utility model proposes a kind of heat-exchange system, it comprises refrigerator, described refrigerator comprises compressor, condenser, heat exchanger, refrigerant in the described refrigerator and cooling fluid carry out heat exchange at the condenser place, refrigerant in circulation of fluid and the described refrigerator carries out heat exchange at the heat exchanger place, described condenser comprises the first input end mouth, the first output port that is communicated with the first input end mouth, the second input port and the second output port that is communicated with the second input port, described heat exchanger comprises the first input end mouth, the first output port that is communicated with the first input end mouth, the second input port and the second output port that is communicated with the second input port, described refrigerator also comprises the first electronic expansion valve gear, the 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, the first output port of described condenser is connected with the first input end mouth of heat exchanger by the first electronic expansion valve gear, the first output port of described heat exchanger is connected with the input port of described compressor, the output port of described compressor also is connected with the first input end mouth of heat exchanger by the second electronic expansion valve gear, and the first output port of described condenser also is 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, and from the second output port outflow of described heat exchanger, described cooling fluid flows into from the second input port of described condenser, from the second output port outflow of described condenser.
Further, the first electronic expansion valve gear and the second electronic expansion valve gear include the separate electronic expansion valve cell of a plurality of parallel connections, described heat-exchange system also comprises the temperature sensor for detection of described circulation of fluid temperature on the path that is arranged at described circulation of fluid, controls each electronic expansion valve gear based on the circulation of fluid temperature that described temperature sensor detects.The switch ratio of wherein said electronic expansion valve cell is controlled.
Further, refrigerant in the described refrigerator has three paths, article one, path is: the refrigerant that flows out from the output port of described compressor, flow back to described compressor through the input port of 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; The second path is the refrigerant that flows out from the output port of described compressor, flows back to described compressor through the input port of the first input end mouth of the second electronic expansion valve gear, described heat exchanger and the first output port, compressor; Article three, path is: the refrigerant that flows out from the output port of described compressor, flow back to described compressor through the input port of the first input end mouth of described condenser and the first output port, the 3rd electronic expansion valve gear, compressor.
Further, described refrigerator comprises that also the suction in the path that is arranged on described refrigerant holds the pond, receiving tank, drier and form, the 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 first electronic expansion valve gear and the input port of the 3rd electronic expansion valve gear through drier and form, the input port that the pond is held in described suction is communicated with the output port of the 3rd electronic expansion valve gear and the first output port of described heat exchanger, and the output port that the pond is held in described suction is communicated with the input port of described compressor.
Further, described heat-exchange system also comprises the circulation of fluid tank that is used for storing described circulation of fluid on the path that is arranged at described circulation of fluid, be provided with heater strip in described fluid tank, the circulation of fluid temperature that detects according to described temperature sensor enables described heater strip.
Further, described heat-exchange system also comprises pump and the motor on the path that is arranged at described circulation of fluid, to drive flowing of described circulation of fluid.
Further, also be provided with the by-passing valve that is communicated with described circulation of fluid pipeline behind the entrance of described circulation of fluid path and before the outlet of described circulation of fluid path.
Further, described circulation of fluid is liquid or gas, and described cooling fluid is cooling water.
Compared with prior art, the utility model is by arranging the parallel drive of electric expansion valve in the refrigerator of heat-exchange system, thereby realizes the accurate control of high-power heat-exchange system cold medium flux, and then realizes the accurate temperature control of controlled device.
Description of drawings
Fig. 1 is the heat-exchange system structural representation in one embodiment in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Alleged " embodiment " or " embodiment " refer to that special characteristic, structure or the characteristic relevant with described embodiment can be contained at least one implementation of the utility model at least herein.Different local in this manual " in one embodiment " that occur also nonessentially all refer to same embodiment, must not be yet with other embodiment mutually exclusive separately or select embodiment.In addition, represent the sequence of modules in method, flow chart or the functional block diagram of one or more embodiment and revocablely refer to any particular order, also do not consist of restriction of the present utility model.
Fig. 1 is high precision temperature control heat-exchange system 100 structural representation in one embodiment in the utility model.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 and the cooling fluid in the cooling fluid pathways 120 in the described refrigerator 110 carry out heat exchange at condenser 114 places; Refrigerant in circulation of fluid in the circulation of fluid path 130 and the described refrigerator 110 carries out heat exchange at heat exchanger 115 places.
Described condenser 114 comprises first input end mouth, the first output port that is communicated with the first input end mouth, the second input port and the second output port that is communicated with the second input port.Described heat exchanger 115 comprises first input end mouth, the first output port that is communicated with the first input end mouth, the second input port and the second output port that 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, the 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, the 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 also is connected with the first input end mouth of heat exchanger 115 by the second electronic expansion valve gear ELV2, and the 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 include the separate electronic expansion valve cell of a plurality of parallel connections.Because the flow bore of Single Electron expansion valve unit is generally less, generally do not adopt this electronic expansion valve cell in the heat exchange applications in high-power, and the bulk flow bore of the whole electromagnetism expansion gear that in the utility model, increases by the mode that adopts the parallel connection of a plurality of electronic expansion valve cell, thereby can satisfy heat exchange applications in high-power.In addition, the switch ratio of each electronic expansion valve cell is adjustable, is opened into 0% such as 100% and opens, adjust grade, so then have 0%, 5% for per 5% 1,10%,, 95%, 100% much more so switch ratio grades, like this with respect to the bulk flow bore of whole electronic expansion valve gear, the flow that can point-device adjustment refrigerant flows through, 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 stepper motor or the direct current generator of the switch ratio of electronic expansion valve and the described electronic expansion valve of control, controls the switch ratio of described electronic expansion valve by controlling described stepper motor or direct current generator.
Can find out, refrigerant in the described refrigerator 110 has three paths, article one, path is that the input port of the first input end mouth of the first input end mouth of the described condenser 114 of process 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 from the refrigerant of the output port outflow of described compressor 112; The second path is the refrigerant that flows out from the output port of described compressor 112, flows back to described compressor through the input port of the first input end mouth of the second electronic expansion valve gear ELV2, described heat exchanger 115 and the first output port, compressor 112; Article three, path is that the input port of the first input end mouth of the described condenser 114 of process and the first output port, the 3rd electronic expansion valve gear ELV3, compressor 112 flows back to described compressor from the refrigerant of the output port outflow of described compressor 112.
In the present embodiment, described refrigerator 110 comprises that also the suction in the path that is arranged on described refrigerant holds pond 116, receiving tank 117, drier 118 and form 119, the 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 first electronic expansion valve gear ELV1 and the input port of the 3rd electronic expansion valve gear ELV3 through drier 118 and form 119, the input port that pond 116 is held in described suction is communicated with the output port of the 3rd electronic expansion valve gear ELV3 and the first output port of described heat exchanger 115, and the output port that pond 116 is held in described suction is communicated with the input port of described compressor 112.
Comprise the cooling fluid pathways entrance 122 that is communicated with condenser 114 second input ports and the cooling fluid pathways that is communicated with condenser 114 second output ports outlet 124 at described cooling fluid pathways 120.Described cooling fluid flows into from the second input port of described condenser 114, from the second output port outflow of described condenser 114.In the present embodiment, also be provided with temperature sensor 126 on described cooling fluid pathways 120, it is for detection of the temperature of described cooling fluid.
Comprise the circulation of fluid path entrance 132 that is communicated with the second input port of heat exchanger 115 and the circulation of fluid lane exit 134 that is communicated with heat exchanger 115 second output ports at described circulation of fluid path 130.Described circulation of fluid flows into from the second input port of described heat exchanger 115, from the second output port outflow of heat exchanger 115.Described heat-exchange system also comprises the temperature sensor 136 for detection of described circulation of fluid temperature that is arranged on the described circulation of fluid path 130, the circulation of fluid temperature that detects based on described temperature sensor 136 is controlled the switch ratio of each electronic expansion valve gear ELV1, ELV2 and ELV3, thereby the accurate control of the cold medium flux of refrigerator in the realization heat-exchange system, and then the accurate temperature control of realization controlled device.In the present embodiment, behind described circulation of fluid pipeline entrance 132 with before the described circulation of fluid pipe outlet 134, be respectively arranged with a temperature sensor 136 that detects described circulation of fluid temperature.
In the present embodiment, described heat-exchange system also comprises the circulation of fluid tank 137 that is used for storing described circulation of fluid that is arranged on the described circulation of fluid path, be arranged on the path of described circulation of fluid in order to driving the pump 138 and the motor 139 that flow of described circulation of fluid, and behind described circulation of fluid path entrance 132 and the by-passing valve 133 of described circulation of fluid lane exit 134 front settings.Be provided with heater strip HT in described fluid tank 137, it can come so that described heater strip HT begins or quits work according to the circulation of fluid temperature that described temperature sensor 136 detects.
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 utility model is by arranging the first electronic expansion valve gear ELV1 between the first input end mouth of the first output port of described condenser 114 and heat exchanger 115; Between the first input end mouth of the output port of described compressor 112 and heat exchanger 115, the second electronic expansion valve gear ELV2 is set; Between the input port of the first output port of described condenser 114 and described compressor 112, the 3rd electronic expansion valve gear ELV3 is set, and the first electronic expansion valve gear and the second electronic expansion valve gear comprise the separate electronic expansion valve cell of a plurality of parallel connections.Also comprise the temperature sensor 136 for detection of described circulation of fluid temperature that is arranged on the described circulation of fluid path 130 in described heat-exchange system, the circulation of fluid temperature that detects based on described temperature sensor is controlled the switch ratio of each electronic expansion valve gear, thereby the accurate control of the cold medium flux of refrigerator in the realization heat-exchange system, and then the accurate temperature control of realization controlled device.
Although described the utility model by embodiment, those of ordinary skills know, the utility model has many distortion and variation and does not break away from spirit of the present utility model, wishes that appended claim comprises these distortion and variation and do not break away from spirit of the present utility model.
Claims (9)
1. heat-exchange system, it comprises refrigerator, and described refrigerator comprises compressor, condenser, heat exchanger, and the refrigerant in the described refrigerator and cooling fluid carry out heat exchange at the condenser place, refrigerant in circulation of fluid and the described refrigerator carries out heat exchange at the heat exchanger place
Described condenser comprises first input end mouth, the first output port that is communicated with the first input end mouth, the second input port and the second output port that is communicated with the second input port,
Described heat exchanger comprises first input end mouth, the first output port that is communicated with the first input end mouth, the second input port and the second output port that is communicated with the second input port, it is characterized in that,
Described refrigerator also comprises the first electronic expansion valve gear, the 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, the first output port of described condenser is connected with the first input end mouth of heat exchanger by the first electronic expansion valve gear, the first output port of described heat exchanger is connected with the input port of described compressor, the output port of described compressor also is connected with the first input end mouth of heat exchanger by the second electronic expansion valve gear, and the first output port of described condenser also is 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, and from the second output port outflow of described heat exchanger, described cooling fluid flows into from the second input port of described condenser, from the second output port outflow of described condenser.
2. heat-exchange system according to claim 1, it is characterized in that, the first electronic expansion valve gear and the second electronic expansion valve gear include the separate electronic expansion valve cell of a plurality of parallel connections, described heat-exchange system also comprises the temperature sensor for detection of described circulation of fluid temperature that is arranged on the described circulation of fluid path, and the circulation of fluid temperature that detects based on described temperature sensor is controlled the switch ratio of each electronic expansion valve gear.
3. heat-exchange system according to claim 2 is characterized in that, the switch ratio of described electronic expansion valve cell is controlled.
4. heat-exchange system according to claim 1, it is characterized in that, refrigerant in the described refrigerator has three paths, article one, path is: the refrigerant that flows out from the output port of described compressor, flow back to described compressor through the input port of 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; The second path is: the refrigerant that flows out from the output port of described compressor, flow back to described compressor through the input port of the first input end mouth of the second electronic expansion valve gear, described heat exchanger and the first output port, compressor; Article three, path is: the refrigerant that flows out from the output port of described compressor, flow back to described compressor through the input port of the first input end mouth of described condenser and the first output port, the 3rd electronic expansion valve gear, compressor.
5. heat-exchange system according to claim 1, it is characterized in that, described refrigerator comprises that also the suction in the path that is arranged on described refrigerant holds the pond, receiving tank, drier and form, the 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 first electronic expansion valve gear and the input port of the 3rd electronic expansion valve gear through drier and form, the input port that the pond is held in described suction is communicated with the output port of the 3rd electronic expansion valve gear and the first output port of described heat exchanger, and the output port that the pond is held in described suction is communicated with the input port of described compressor.
6. heat-exchange system according to claim 1, it is characterized in that, described heat-exchange system also comprises the circulation of fluid tank that is used for storing described circulation of fluid on the path that is arranged at described circulation of fluid, be provided with heater strip in described fluid tank, the circulation of fluid temperature that detects according to described temperature sensor enables described heater strip.
7. heat-exchange system according to claim 6 is characterized in that, described heat-exchange system also comprises pump and the motor that is arranged on the described circulation of fluid path, to drive flowing of described circulation of fluid.
8. heat-exchange system according to claim 6 is characterized in that, also is provided with the by-passing valve that is communicated with described circulation of fluid pipeline behind the entrance of described circulation of fluid path and before the outlet of described circulation of fluid path.
9. 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204916390U CN202813859U (en) | 2012-09-25 | 2012-09-25 | High-precision temperature-control heat exchange system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204916390U CN202813859U (en) | 2012-09-25 | 2012-09-25 | High-precision temperature-control heat exchange system |
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| CN202813859U true CN202813859U (en) | 2013-03-20 |
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| CN2012204916390U Expired - Fee Related CN202813859U (en) | 2012-09-25 | 2012-09-25 | High-precision temperature-control heat exchange system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017389A (en) * | 2012-09-25 | 2013-04-03 | 无锡溥汇机械科技有限公司 | High-precision temperature control type heat exchange system |
| CN112378113A (en) * | 2020-10-29 | 2021-02-19 | 北京京仪自动化装备技术有限公司 | Semiconductor temperature control device and method |
-
2012
- 2012-09-25 CN CN2012204916390U patent/CN202813859U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017389A (en) * | 2012-09-25 | 2013-04-03 | 无锡溥汇机械科技有限公司 | High-precision temperature control type heat exchange system |
| CN103017389B (en) * | 2012-09-25 | 2015-09-09 | 无锡溥汇机械科技有限公司 | High-precision temperature control type heat exchange system |
| CN112378113A (en) * | 2020-10-29 | 2021-02-19 | 北京京仪自动化装备技术有限公司 | Semiconductor temperature control device and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150925 |
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| EXPY | Termination of patent right or utility model |