CN101975489B - Precise temperature control system with all-weather wide temperature zone - Google Patents
Precise temperature control system with all-weather wide temperature zone Download PDFInfo
- Publication number
- CN101975489B CN101975489B CN2010105304382A CN201010530438A CN101975489B CN 101975489 B CN101975489 B CN 101975489B CN 2010105304382 A CN2010105304382 A CN 2010105304382A CN 201010530438 A CN201010530438 A CN 201010530438A CN 101975489 B CN101975489 B CN 101975489B
- Authority
- CN
- China
- Prior art keywords
- temperature
- refrigerant
- air
- control system
- control
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a precise temperature control system with an all-weather wide temperature zone, which is characterized in that the system comprises a cold and hot source module, a coolant loop and a measurement and control system, wherein the cold and hot source module is composed of a mechanical refrigeration unit, an air cooling refrigeration unit and an electric heating unit; the coolant loop takes a liquid pump as a drive source for coolant recycle, the coolant in a liquid accumulator passes through the liquid pump, a heat sink with a microchannel and a three-way valve in turn, passes through one of two parallel branches at the outlet end of the three-way valve, and then flows back to the liquid accumulator through an electric heating module of a main loop, and one path of the two parallel branches is a mechanical refrigeration unit channel passing through the outlet A of the three-way valve, and the other path is an air cooling refrigeration unit channel passing through the outlet B of the three-way valve; and in the system, the wide temperature zone within a range of minus 60 DEG C-70 DEG C is divided into a refrigeration zone, an air cooling zone and a heat supply zone, and the measurement and control system carries out zone control to enable the temperature control system to run in a refrigeration mode, an air cooling mode and a heat supply mode according to the real-time running states. The temperature control system is used for precise temperature control of all-weather wide temperature zone operating environment.
Description
Technical field
The present invention relates to refrigeration and man-machine-environment engineering's technical field, be specifically related to the fine adjustment temperature controlling system of the wide temperate climate condition of a kind of being applied in-60～70 ℃.
Background technology
The electronics bin on aircraft, naval vessel; Motor vehicles, naval vessel or the delivery vehicle of functions such as communication, monitoring, early warning, guidance; Electro-optical systems such as laser aid etc., the common demand that round-the-clock, wide warm area work is all arranged usually has the characteristics that heat flow density is big or heat flow is big; Must use man-machine environmental control equipment suitable operating ambient temperature to be provided, to ensure that it is safe, reliable, efficient and to work exactly for it; Even exigent temperature control precision and very fast rate of temperature fall, with stability, reliability, accuracy, mobility and the efficient that improves its work.
Operation temperature area is narrow, toggle speed is slow, inefficient limitation for having as the temperature control system of Cooling and Heat Source with thermoelectric cooling of once using, the demand that can not satisfy wide warm area precise temperature control and start fast.
Mechanical refrigeration has that the refrigerating capacity adjustable range is wide, cooling rate is fast, the efficiency level is high, in the advantage of the variation of ambient temperature scope reliable operation of broad.But when under lower ambient temperature, freezing, its economy and reliability are not good.When environment temperature is lower, even to need heat supply be that controlled device is regulated operating ambient temperature.
Summary of the invention
The present invention provides a kind of good reliability, degree of modularity height, working service round-the-clock easily wide temperate zone precision temperature control method and system; The environment control needs of round-the-clock to satisfy, wide warm area work, light, electric equipment and instrument with big heat flow and high heat flux characteristics; Can in-60～70 ℃ wide environmental temperature range, realize the precision control of local ambient temperature, guarantee controlled device safety, reliable, stable, efficiently and operation exactly.
The present invention adopts following technical scheme
The round-the-clock wide temperate zone of the present invention precision temperature control system is characterized in that system's formation comprises:
Cold heat source module, it is made up of mechanical refrigeration unit, air-cooled cooling unit and electric heating unit;
The refrigerant loop; It is with the drive source of liquid pump as the refrigerant circulation; In the reservoir refrigerant successively through the liquid pump, have the heat sink and triple valve of microchannel), at the port of export of triple valve a certain path, after the electrothermal module of major loop is back in the reservoir through two parallel branches; Described two parallel branches, the one tunnel is to be the air-cooled cooling unit passage through triple valve outlet B through mechanical refrigeration unit channel, another road of triple valve outlet A;
TT&C system, it is that the measurement and control unit of control centre is formed by refrigerant temperature sensor, controlled device temperature sensor, environment temperature sensor with the microprocessor;
-60～70 ℃ wide temperate zones are decomposed into refrigeration area, air-cooled district and heat supply district; Said TT&C system is controlled to be three kinds of different mode of operations according to the real-time running state subregion; Said three kinds of mode of operations are respectively to start mechanical refrigeration work pattern at said refrigeration area; Switch to air-cooled cooling work pattern in said air-cooled district, the district switches to the electric heating mode of operation in said heat supply.
The design feature of the round-the-clock wide temperate zone of the present invention precision temperature control system also is:
Said mechanical refrigeration unit adopts the steam compression type refrigerating structure; The flow direction by cold-producing medium sets gradually compressor, has condenser assembly, device for drying and filtering, throttle mechanism, devaporizer and the gas-liquid separator of frequency control blower fan; The port of export of said gas-liquid separator is connected with compressor inlet, constitutes the mechanical refrigeration circulatory system; As governor motion, variations in temperature and thermic load change to conform with said frequency control blower fan.
Said air-cooled cooling unit adopts gas-liquid heat exchanger, and by the forced convertion of frequency control blower fan drive air, refrigerant is accomplished heat exchange with air in gas-liquid heat exchanger; With the exchange capability of heat of the said gas-liquid heat exchanger of said frequency control Fan Regulation, variations in temperature and thermic load change to conform.
Said electric heating unit is made up of heat supply master electric heater and secondary electric heater that parallel connection is provided with; In three kinds of mode of operations, carry out the temperature accurate adjustment of refrigerant with said secondary electric heater, realize precision temperature control.
In said TT&C system, adopt can accurate temperature adjustment the tandem control mode; With the interior ring actuator of secondary electric heater as tandem control; The controlled device temperature signal t2 that detects with the controlled device temperature sensor is a principal parameter; The refrigerant temperature t1 that detects with refrigerant temperature sensor is a second parameter, quantity of electricity controller is set regulates the electric heating amount that said secondary electric heater produces, and object temperature is transferred in accurate control.
Compared with present technology, beneficial effect of the present invention is embodied in:
1, the present invention adopts mechanical refrigeration, air-cooled cooling and three kinds of mode of operations of electric heating heat supply, adopts tandem control mode accurate adjustment refrigerant temperature, can accurate control controlled device operating temperature.
2, three kinds of mode of operations used in the present invention can realize wide temperate zone automatic temperature-adjusting controls round-the-clock ,-60～70 ℃, guarantee stable, reliable, accurate, the efficient operation of controlled system.
3, temperature control wide ranges of the present invention, result of use obviously is superior to thermoelectric cooling; Owing to adopted air-cooled mode of operation, satisfied controlled device in environment temperature than the service requirement of needs cooling also under the low condition, improved the reliability and the energy-efficient performance of system.
4, functional structure of the present invention is simple and clear, and the degree of modularity is high, and flexible and convenient to use, management maintenance is convenient.
5, the present invention can realize automatic operation, Long-distance Control and man-machine communication.In fields such as electrooptical device, power electronic equipment and instrument, Communication Engineering, energy resource system, weaponry, airborne equipments certain application prospect is arranged.
Description of drawings
Fig. 1 is a structural principle block diagram of the present invention;
Fig. 2 temperature control system performance sketch map;
Fig. 3 is that mechanical refrigeration module of the present invention constitutes block diagram;
Fig. 4 is that air-cooled refrigerating module of the present invention constitutes block diagram;
Fig. 5 is that electrothermal module of the present invention constitutes block diagram;
Fig. 6 is the accurate control principle block diagram of temperature.
Label among the figure: 1 compressor, 2 condenser assemblies, 2A frequency control blower fan, 2B condensing heat exchanger, 3 devices for drying and filtering, 4 throttle mechanisms, 5 devaporizers, 6 gas-liquid separators, 7 gas-liquid heat exchangers, 8 cooling blowers, 9 main electric heaters, 10 secondary electric heaters;
U1 mechanical refrigeration unit, the air-cooled cooling unit of U2, U3 electric heating unit, U4 measurement and control unit; The U5 reservoir, U6 liquid pump, U7 is heat sink, the U8 triple valve; The T1 refrigerant temperature sensor, T2 controlled device temperature sensor, T3 environment temperature sensor, K1, K2, K3 auxiliary reclay.
The specific embodiment
Referring to Fig. 1, the system of the round-the-clock wide temperate zone of present embodiment precision temperature control system constitutes:
Constitute cold and heat source system by mechanical refrigeration unit U1, air-cooled cooling unit U2 and electric heating unit U3.
The pressure enclosed refrigerant circulation that setting is driven by liquid pump U6: in the refrigerant loop; Refrigerant among the reservoir U5 is successively through liquid pump U6, heat sink U7 and triple valve U8; On the flow through a certain road of two parallel branches of the port of export branch of triple valve U8; After electrothermal module U3 returns among the reservoir U5 in the major loop, two parallel branches one tunnel are to be the air-cooled cooling unit U2 through triple valve outlet B through mechanical refrigeration unit U1, another road of triple valve outlet A; Wherein, Electric heating unit U3 is serially connected in the major loop of refrigerant; The outlet of mechanical refrigeration unit U1 and air-cooled cooling unit U2 is connected in the head piece of going into of electric heating unit in parallel, after the refrigerant process accurate adjustment temperature, carries out heat exchange through heat sink U7 and controlled device with microchannel.
Setting is formed TT&C system by refrigerant temperature sensor T1, controlled device temperature sensor T2, environment temperature sensor T3 and measurement and control unit U4.
Referring to Fig. 2;-60～70 ℃ wide temperate zones are decomposed into refrigeration area, air-cooled district and heat supply district, start mechanical refrigeration module at refrigeration area and realize refrigeration mode, start air-cooled refrigerating module in air-cooled district and realize air-cooled pattern; In the heat supply district, start electrothermal module and realize heat supply mode.
The flow direction of dividing warm area control three-way control valve U8, under refrigeration mode and heat supply mode, triple valve outlet A conducting, B close, and in heat supply mode, refrigeration compressor 1 quits work; Under air-cooled pattern, three-way control valve outlet A closes, the B conducting.
Referring to Fig. 3; Mechanical refrigeration unit U1 adopts the steam compression type refrigerating structure; The flow direction by cold-producing medium sets gradually refrigeration compressor 1, has the condenser assembly 2 of frequency control blower fan 2A, device for drying and filtering 3, throttle mechanism 4, devaporizer 5 and gas-liquid separator 6; The port of export of gas-liquid separator 6 is connected with said refrigeration compressor entrance point; For refrigerant provides cold, the condensation fan speed change is regulated to improve the stability of wide warm area refrigeration by devaporizer 5, and variations in temperature and thermic load change to conform.
Referring to Fig. 4; Air-cooled cooling unit U2 adopts gas-liquid heat exchanger 7, by temperature variable frequency adjustment blower fan 8 rotating speeds of frequency control blower fan 8 according to refrigerant, to regulate the flow of cooling air; Form the forced flow of ambient, cool air; And accomplish heat exchange with the refrigerant in the gas-liquid heat exchanger 7, so that refrigerant temperature is stable in certain temperature range, reach energy-conservation effect.
Referring to Fig. 5, electric heating unit U3 is made up of with the secondary electric heater 10 of temperature adjustment the heat supply master electric heater 9 that parallel connection is provided with.Wherein, Heat supply master electric heater 9 is only worked under heat supply (comprising cold start-up) pattern; The control system is according to the deviation of principal parameter; Or the auxiliary reclay K1 in the outdoor temperature parameter control loop, heat supply master electric heater 9 place, conducting and the disconnection of K2, the effect of heat supply master electric heater 9 is heat supplies, and the rapidly pre-warming when guaranteeing the cold start-up of temperature control object; Secondary electric heater 10 accurate adjustment refrigerant temperatures.
Referring to Fig. 1 and Fig. 6, during heat supply mode, the outlet A conducting of triple valve U8, outlet B close, and the refrigeration compressor 1 among the mechanical refrigeration unit U1 shuts down with frequency conversion fan 2A.Secondary electric heater 10 is all devoted oneself to work in refrigeration, air-cooled and three mode of operations of heat supply; Interior ring as the tandem control mode; The controlled device temperature signal t2 that detects with controlled device temperature sensor T2 is a principal parameter, and the refrigerant temperature sensor t1 that detects with refrigerant temperature sensor T1 is a second parameter, and the electric heating amount that quantity of electricity controller is regulated secondary electric heater 10 is set; The accurate adjustment refrigerant temperature reaches the purpose that object temperature is transferred in accurate control.Present embodiment adopts the control of tandem control mode to be transferred object temperature, outer shroud coarse adjustment refrigerant temperature, and response is fast; The secondary electric heater energy of interior ring accurate adjustment, precision is high.
As required, can select ethylene glycol, alcohol or other liquid working substances as refrigerant.
The setting of control system:
The control system is made up of micro processor and input and output interfaces, frequency converter, drive circuit, quantity of electricity controller, relay, temperature sensor and measuring circuit thereof etc.
The rotating speed of Frequency Converter Control condensation fan and cooling blower, the cooling amount of adjusting refrigeration and air-cooled pattern.
Relay is used to carry out the instruction of micro processor, the start and stop of control refrigeration compressor, liquid pump, blower fan and electric heater, and the switching of three-way control valve branch road.
For technical scheme provided by the present invention, can also carry out various modifications and modification, as can the condensing heat exchanger 2B of Fig. 3 and the gas-liquid heat exchanger 7 of Fig. 4 being become one, adopt parallel-flow heat exchanger or pipe type heat exchanger structure; Adopt a frequency conversion fan to substitute the adjustable speed fan function of frequency control blower fan 2A and cooling blower 8; Adopt variable speed compressor to substitute constant speed compressor; Can divide temperature range according to concrete controlled device and part throttle characteristics thereof; Can realize as adopting control principles such as self adaptation, feedforward, compensation according to the needs of temperature accuracy or the specification requirement adjustment control mode of controlled device; Also can simplify system architecture or the equivalence replacement according to the actual motion temperature range.
Claims (5)
1. a round-the-clock wide temperate zone precision temperature is controlled system, it is characterized in that system's formation comprises:
Cold heat source module, it is made up of mechanical refrigeration unit (U1), air-cooled cooling unit (U2) and electric heating unit (U3);
The refrigerant loop; It is with the drive source of liquid pump (U6) as the refrigerant circulation; Refrigerant is successively through liquid pump (U6), heat sink (U7) with microchannel and triple valve (U8) in the reservoir (U5); At the port of export of triple valve (U8) a certain path, after the electrothermal module of major loop (U3) is back in the reservoir (U5) through two parallel branches; Described two parallel branches, the one tunnel is to be air-cooled cooling unit (U2) passage through triple valve outlet B through mechanical refrigeration unit (U1) passage, another road of triple valve outlet A;
TT&C system, it is that the measurement and control unit (U4) of control centre is formed by refrigerant temperature sensor (T1), controlled device temperature sensor (T2), environment temperature sensor (T3) with the microprocessor;
-60～70 ℃ wide temperate zones are decomposed into refrigeration area, air-cooled district and heat supply district; Said TT&C system is controlled to be three kinds of different mode of operations according to the real-time running state subregion; Said three kinds of mode of operations are respectively to start mechanical refrigeration work pattern at said refrigeration area; Switch to air-cooled cooling work pattern in said air-cooled district, the district switches to the electric heating mode of operation in said heat supply.
2. round-the-clock wide temperate zone according to claim 1 precision temperature control system; It is characterized in that said mechanical refrigeration unit (U1) adopts the steam compression type refrigerating structure; The flow direction by cold-producing medium sets gradually compressor (1), has the condenser assembly (2) of frequency control blower fan (2A), device for drying and filtering (3), throttle mechanism (4), devaporizer (5) and gas-liquid separator (6); The port of export of said gas-liquid separator (6) is connected with compressor (1) entrance point, constitutes the mechanical refrigeration circulatory system; As governor motion, variations in temperature and thermic load change to conform with said frequency control blower fan (2A).
3. round-the-clock wide temperate zone according to claim 1 precision temperature control system; It is characterized in that said air-cooled cooling unit (U2) adopts gas-liquid heat exchanger (7); By frequency control blower fan (8) drive air forced convertion, refrigerant is accomplished heat exchange with air in gas-liquid heat exchanger (7); With the exchange capability of heat of the said gas-liquid heat exchanger of said frequency control blower fan (8) adjusting, variations in temperature and thermic load change to conform.
4. round-the-clock wide temperate zone according to claim 1 precision temperature control system is characterized in that said electric heating unit (U3) is made up of heat supply master electric heater (9) and secondary electric heater (10) that parallel connection is provided with; In three kinds of mode of operations, carry out the temperature accurate adjustment of refrigerant with said secondary electric heater (10), realize precision temperature control.
5. round-the-clock wide temperate zone according to claim 1 precision temperature control system; It is characterized in that in said TT&C system adopting can accurate temperature adjustment the tandem control mode; With the interior ring actuator of secondary electric heater (10) as tandem control; The controlled device temperature signal t2 that detects with controlled device temperature sensor (T2) is a principal parameter; The refrigerant temperature t1 that detects with refrigerant temperature sensor (T1) is a second parameter, quantity of electricity controller is set regulates the electric heating amount that said secondary electric heater (10) produces, and object temperature is transferred in accurate control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105304382A CN101975489B (en) | 2010-11-03 | 2010-11-03 | Precise temperature control system with all-weather wide temperature zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105304382A CN101975489B (en) | 2010-11-03 | 2010-11-03 | Precise temperature control system with all-weather wide temperature zone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101975489A CN101975489A (en) | 2011-02-16 |
| CN101975489B true CN101975489B (en) | 2012-01-18 |
Family
ID=43575392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105304382A Expired - Fee Related CN101975489B (en) | 2010-11-03 | 2010-11-03 | Precise temperature control system with all-weather wide temperature zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101975489B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678462B (en) * | 2017-11-01 | 2022-12-20 | 泰安磐然测控科技有限公司 | Constant-speed tank, constant-speed cooling system for constant-speed tank and constant-speed cooling method for constant-speed tank |
| CN107763912A (en) * | 2017-11-16 | 2018-03-06 | 浙江盈佳制冷设备有限公司 | A kind of electronic refrigeration unit of constant temperature and humidity |
| CN113677158A (en) * | 2021-08-20 | 2021-11-19 | 江苏中科新源半导体科技有限公司 | Semiconductor thermal reactor precise temperature control system for ships |
| CN113660838B (en) * | 2021-08-20 | 2023-11-17 | 安徽中科新源半导体科技有限公司 | Semiconductor hot-pile precise temperature control liquid cooling source system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119731A (en) * | 1994-01-21 | 1996-04-03 | Fsi国际有限公司 | Temperature control apparatus and method with recirculated coolant |
| CN101558270A (en) * | 2006-12-27 | 2009-10-14 | 奥利安机械股份有限公司 | Device for precise temperature control |
| US20100116484A1 (en) * | 2008-11-12 | 2010-05-13 | Ckd Corporation | Temperature control device |
| CN201858816U (en) * | 2010-11-03 | 2011-06-08 | 合肥工业大学 | All-weather and broad-temperature-zone precision temperature control system |
-
2010
- 2010-11-03 CN CN2010105304382A patent/CN101975489B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119731A (en) * | 1994-01-21 | 1996-04-03 | Fsi国际有限公司 | Temperature control apparatus and method with recirculated coolant |
| CN101558270A (en) * | 2006-12-27 | 2009-10-14 | 奥利安机械股份有限公司 | Device for precise temperature control |
| US20100116484A1 (en) * | 2008-11-12 | 2010-05-13 | Ckd Corporation | Temperature control device |
| CN201858816U (en) * | 2010-11-03 | 2011-06-08 | 合肥工业大学 | All-weather and broad-temperature-zone precision temperature control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101975489A (en) | 2011-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205194809U (en) | Electric automobile power battery's thermal management system and electric automobile | |
| CN205130860U (en) | Electric automobile's thermal management system | |
| CN103625242B (en) | A kind of thermal management system of electric automobile | |
| CN108461868B (en) | Automobile heat management system and automobile | |
| CN205177980U (en) | Thermal management system of electric automobile | |
| CN103213472B (en) | The heating/cooling system of automotive battery and operating method thereof | |
| CN103129346B (en) | A kind of thermal management system of electric automobile | |
| CN111376692B (en) | Vehicle, multi-branch temperature regulation liquid cooling power supply system and control method thereof | |
| CN201637595U (en) | Performance testing device of heat exchanger | |
| CN101975489B (en) | Precise temperature control system with all-weather wide temperature zone | |
| CN102245412A (en) | Air conditioning thermodynamic loop integrated in a heating, ventilation and/or air conditioning system a vehicle, in particular an electric propulsion vehicle | |
| CN111301101B (en) | New energy automobile's thermal management system and new energy automobile | |
| CN103496319A (en) | Temperature regulating device of new energy automobile power storage battery | |
| CN108110372A (en) | Power battery intelligent temperature control system and its control method | |
| CN107310344A (en) | Thermal management system of electric automobile | |
| CN107639992A (en) | A kind of heat management system | |
| CN109830785A (en) | A kind of new energy car battery cooling system control apparatus | |
| CN109501567A (en) | Electric automobile cooling system | |
| CN204006829U (en) | A kind of energy-efficient liquid cooling origin system | |
| CN212400823U (en) | New energy automobile's thermal management system and new energy automobile | |
| CN107394072A (en) | The heat management system and hybrid vehicle of a kind of electrokinetic cell | |
| CN201858816U (en) | All-weather and broad-temperature-zone precision temperature control system | |
| CN208343853U (en) | A kind of electrombile thermal management system | |
| CN102287975A (en) | Refrigerator refrigerating system, refrigerator and control method of refrigerator | |
| RU174819U1 (en) | MODULAR SYSTEM OF THERMAL REGULATION OF THE STATUS OF TRACTION BATTERY BATTERIES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20201103 |