CN205236003U - Wide warm area low -temperature constant -temperature groove equipment - Google Patents
Wide warm area low -temperature constant -temperature groove equipment Download PDFInfo
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- CN205236003U CN205236003U CN201521029091.8U CN201521029091U CN205236003U CN 205236003 U CN205236003 U CN 205236003U CN 201521029091 U CN201521029091 U CN 201521029091U CN 205236003 U CN205236003 U CN 205236003U
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- temperature
- regenerator
- rectifying column
- condenser
- evaporimeter
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Abstract
The utility model discloses a wide warm area low -temperature constant -temperature groove equipment, refrigerating module include compressor, condenser, rectifying column, regenerator, evaporimeter and choke valve, and the compressor links to each other with the condenser, and the condenser links to each other with the cylinder import of rectifying column, and the insertion point that the bottom liquid outlet of rectifying column passes through choke valve and regenerator links to each other, and the export at rectifying column top links to each other with the import of the high -pressure side of regenerator, and the high -pressure side export of regenerator links to each other through choke valve and evaporimeter, the structure module includes support and the complete pleasing to the eye appearance component of retaining device appearance that supports each part of refrigerating module, and control module includes temperature controller, heating power executor and circuit board, and thermotank phantom piece includes alcohol trough, agitator, heater, temperature sensor and work solution. The utility model discloses the minimum temperature reaches - 100 DEG C, and overall temperature range is - 100 DEG C to 95 DEG C, can realize the accurate temperature control of interior each temperature level of temperature range, and is wideer than current high accuracy low -temperature constant -temperature scope.
Description
Technical field
The utility model relates to low temperature thermostat bath field, specifically, is a kind of wide warm area low temperature thermostat bath equipment.
Background technology
Along with scientific and technical development, and information technology and the particularly development of micro-computer technology of microprocessing,Requirement to temperature sensor is more and more higher, and therefore the requirement in the temperature field to proving temperature sensor is just more and more higher. TemperatureThe temperature uniformity of degree field and temperature fluctuation have determined the precision of calibration of sensor, demarcate a kind of temperature of precisionMeter, requires temperature field energy that the temperature fluctuation higher than an order of magnitude of temperature sensor precision is provided. So, for demarcatingThe temperature field of temperature sensor is temperature sensor to the prerequisite of high accuracy development more. Thermostat is taking liquid state as heat-conducting medium,Effect by temperature control system and stirring reaches design temperature, and keeps the temperature stabilization in its internal work region equalEven, mainly as needed constant temperature of other measurement instrument such as all kinds of thermometers of assay calibration, normal cell, measuring resistancesEquipment.
And along with the development of cryogenic technique, cryogenic applications is also more and more universal in all trades and professions, electronics, automobile, materialThe high-low temperature test chamber that material temperature degree Performance Detection is used, the low temperature water trap of Coating Materials production and application, low-temperature biological is protectedThe low temperature of depositing use keeps case, and vaccine freeze-drying is made the freeze drier of use, the liquid of natural gas in low temperature liquefaction and other gasesChange etc. all needs to use low-temperature measurement. Low temperature measurement obtains as the indispensable part of cryogenic applications is also inevitable thereuponTo development, a large amount of low-reading thermometers all needed to demarcate and regularly detects before using, and demarcated as thermometerImportant instrument, the development of low temperature thermostat bath is the prerequisite of cryogenic technique industry development. Existing thermostat technology and equipment institute energyThe minimum temperature reaching is-80 DEG C, and this can not meet the requirement of existing cryogenic technique far away, in order to widen low temperature warm area,Rectification type mixed working substance self-stacking low-temperature refrigeration technology is applied to thermostat equipment by the present invention, and minimum temperature can reach-100 DEG C, effectively widen the demarcation of temperature sensor to cryogenic temperature position.
Utility model content
In order to address the above problem, this use is novel provides a kind of wide warm area low temperature thermostat bath equipment, adopts rectification type mixedClose working medium auto-cascade low-temperature refrigeration technology the temperature range of thermostat is expanded to-100 DEG C, make the scope of temperature calibration moreWide, low-temperature characteristics is better.
The purpose of this utility model is achieved through the following technical solutions:
A kind of wide warm area low temperature thermostat bath equipment, refrigeration module, construction module, control module and thermostat module, systemCold module comprises compressor, condenser, rectifying column, regenerator, evaporimeter and choke valve, adopts multicomponent mixture work medium to doFor cold-producing medium, realize-100 DEG C of following cryogenic refrigerations; Compressor is connected with condenser, the cylinder of condenser and rectifying columnImport is connected, and the bottom liquid outlet of rectifying column is connected with the insertion point of regenerator by choke valve, the outlet at rectifying column topBe connected with the high-pressure side import of regenerator, the outlet of the high-pressure side of regenerator is connected with evaporimeter by choke valve, evaporimeter andThe low pressure inlet of regenerator is connected, and the outlet of regenerator is connected with the heat exchange of top part device of rectifying column, the outlet of heat exchanger and pressureThe air entry of contracting machine is connected; Construction module comprises support and maintenance complete U.S. of equipment profile of supporting the each parts of refrigeration moduleThe profile member of seeing, control module comprises temperature controller, heating power actuator and circuit board, thermostat module comprises wineEssence groove, agitator, heater, temperature sensor and working solution, as the working cavity of thermostat equipment, in cell bodySolution is realized the wide warm area of-100 DEG C to 95 DEG C, and evaporimeter is positioned in alcohol trough, directly contacts with working solution, realizesTo the refrigeration of working solution; Heater is positioned in alcohol trough, realizes the heating to working solution; Temperature sensor measurementThe temperature of working solution, and temperature signal is delivered in control module, temperature controller control heating power actuator regulates and addsThe heating power of hot device, the refrigerating capacity providing with balanced system cooling system, is controlled at setting value by the temperature of working solution, establishesDefinite value scope is-100 DEG C to 95 DEG C, can realize ± temperature-controlled precision of 0.01 DEG C, is provided with agitator, agitator in alcohol troughStrong stirring can realize whole alcohol cell body uniform temperature distribute.
As preferably, described compressor adopts piston compressor, and described condenser adopts air-cooled condenser, described inRegenerator adopt double-tube heat exchanger.
As preferably, described regenerator is back-shaped, is placed on the surrounding of alcohol trough.
Compared with prior art, the utlity model has following advantage:
This thermostat equipment minimum temperature can reach-100 DEG C, and bulk temperature scope is-100 DEG C to 95 DEG C, can realize temperature modelIn enclosing, the accurate temperature controlling of each temperature level, wider than existing High Precision Low Temperature constant temperature scope.
Brief description of the drawings
Fig. 1 is the integral layout of wide warm area low temperature thermostat bath in the utility model embodiment;
Fig. 2 is refrigeration module schematic diagram in wide warm area low temperature thermostat bath in the utility model embodiment;
Fig. 3 is constant temperature cell body schematic diagram in wide warm area low temperature thermostat bath in the utility model embodiment.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is elaborated. Following examples will contribute to the skill of this areaArt personnel further understand the utility model, but do not limit in any form the utility model. It should be pointed out that thisThe those of ordinary skill in field, without departing from the concept of the premise utility, can also make some distortion andImprove. These all belong to protection domain of the present utility model.
As Figure 1-3, the utility model embodiment provides a kind of wide warm area low temperature thermostat bath equipment, refrigeration module 1,Construction module 2, control module 3 and thermostat module 4, refrigeration module 1 comprise compressor 101, condenser 102,Rectifying column 103, regenerator 104, evaporimeter 105 and choke valve 106, adopt multicomponent mixture work medium as cold-producing medium, realExisting-100 DEG C of following cryogenic refrigerations; Compressor 101 is connected with condenser 102, condenser 102 and rectifying column 103Cylinder import is connected, and the bottom liquid outlet of rectifying column 103 is connected with the insertion point of regenerator 104 by choke valve 106,The outlet at rectifying column 103 tops is connected with the high-pressure side import of regenerator 104, and the high-pressure side outlet of regenerator 104 is passed throughChoke valve 106 is connected with evaporimeter 105, and evaporimeter 105 is connected with the low pressure inlet of regenerator 104, regenerator 104Outlet be connected with the heat exchange of top part device of rectifying column 103, the outlet of heat exchanger is connected with the air entry of compressor 101; KnotStructure module 2 comprises the support and the complete profile member attractive in appearance of maintenance equipment profile that support the each parts of refrigeration module, controlsModule 3 comprises temperature controller, heating power actuator and circuit board, and thermostat module 4 comprises alcohol trough 401, stirsDevice 402, heater 403, temperature sensor 404 and working solution 405, as the working cavity of thermostat equipment, grooveIn body, solution is realized the wide warm area of-100 DEG C to 95 DEG C, and evaporimeter 105 is positioned in alcohol trough 401, with working solution405 directly contacts, realize the refrigeration to working solution; Heater 403 is positioned in alcohol trough, realizes working solutionHeating; The temperature of temperature sensor 404 surveying work solution, and temperature signal is delivered in control module 3 to temperatureControl device control heating power actuator regulates the heating power of heater 403, the refrigerating capacity providing with balanced system cooling system,The temperature of working solution is controlled to setting value, and range of set value is-100 DEG C to 95 DEG C, can realize ± temperature control of 0.01 DEG CPrecision, is provided with agitator 402 in alcohol trough, the strong stirring of agitator 402 can be realized the even temperature of whole alcohol cell bodyDegree distributes.
Described compressor 101 adopts piston compressor, and described condenser 102 adopts air-cooled condenser, describedRegenerator 104 adopts double-tube heat exchanger.
Described regenerator 104 is back-shaped, is placed on the surrounding of alcohol trough.
Taking 12L constant temperature cell body as example, this concrete enforcement refrigeration module is positioned at the lower part of thermostat equipment. Refrigeration module3 connected modes are followed successively by: compressor connects condenser, and condenser connects the import of rectifying column cylinder, rectifying column bottom fluidMouth connects choke valve, then enters the insertion point of regenerator; Rectifying column top exit connects the import of regenerator high-pressure side, and high pressure brings outMouth connects primary throttle valve, then enters evaporimeter, completes cryogenic refrigeration in evaporimeter, working media is cooled, thenGet back to regenerator low pressure inlet, outlet connects rectifying column heat exchange of top part device, and heat exchanger exit connects compressor air suction mouth, so completeBecome whole kind of refrigeration cycle.
The present embodiment, using multicomponent mixture work medium as cold-producing medium, adopts single compressor can realize-100 DEG C of following low temperatureFreeze, realize the cryogenic temperature of working solution. The evaporimeter of refrigeration system and heater are immersed in alcohol trough working medium solution,Under the stirring action of agitator, realize the heat exchange between parts and working solution, refrigeration module provides lasting for working solutionCryogenic refrigeration, temperature controller is realized the high accuracy control of temperature level by the heating power of control heater.
Refrigeration module critical piece is installed on the bottom of thermostat equipment, and regenerator is back-shaped, is placed on the surrounding of alcohol trough,Whole regenerator and alcohol cell body adopt polyurethane foam to be incubated. Control module is installed the top with equipment, to touchTouching screen realizes the demonstration of parameters and receives user's instruction.
Above specific embodiment of the utility model is described. It will be appreciated that, the utility model does not limit toIn above-mentioned specific implementations, those skilled in the art can make various distortion or amendment within the scope of the claims,This does not affect flesh and blood of the present utility model.
Claims (3)
1. a wide warm area low temperature thermostat bath equipment, is characterized in that, refrigeration module (1), construction module (2), controlMolding piece (3) and thermostat module (4), refrigeration module (1) comprise compressor (101), condenser (102),Rectifying column (103), regenerator (104), evaporimeter (105) and choke valve (106), compressor (101) and condensationDevice (102) is connected, and condenser (102) is connected with the cylinder import of rectifying column (103), the end of rectifying column (103)Portion's liquid outlet is connected with the insertion point of regenerator (104) by choke valve (106), the going out of rectifying column (103) topMouth is connected with the high-pressure side import of regenerator (104), and the high-pressure side outlet of regenerator (104) is by choke valve (106)Be connected with evaporimeter (105), evaporimeter (105) is connected with the low pressure inlet of regenerator (104), regenerator (104)Outlet be connected with the heat exchange of top part device of rectifying column (103), the air entry phase of the outlet of heat exchanger and compressor (101)Connect; Construction module (2) comprises the support and the complete profile attractive in appearance of maintenance equipment profile that support the each parts of refrigeration moduleMember, control module (3) comprises temperature controller, heating power actuator and circuit board, thermostat module (4) comprisesAlcohol trough (401), agitator (402), heater (403), temperature sensor (404) and working solution (405),As the working cavity of thermostat equipment, in cell body, solution is realized the wide warm area of-100 DEG C to 95 DEG C, evaporimeter (105)Be positioned in alcohol trough (401), directly contact with working solution (405), realize the refrigeration to working solution; HeatingDevice (403) is positioned in alcohol trough, realizes the heating to working solution; Temperature sensor (404) surveying work solutionTemperature, and temperature signal is delivered in control module (3), temperature controller control heating power actuator regulates heatingThe heating power of device (403), the refrigerating capacity providing with balanced system cooling system, is controlled at setting by the temperature of working solutionValue, range of set value is-100 DEG C to 95 DEG C, can realize ± temperature-controlled precision of 0.01 DEG C, is provided with agitator in alcohol trough(402)。
2. the wide warm area low temperature thermostat bath of one according to claim 1 equipment, is characterized in that, described compressionMachine (101) adopts piston compressor, and described condenser (102) adopts air-cooled condenser, described regenerator (104)Adopt double-tube heat exchanger.
3. the wide warm area low temperature thermostat bath of one according to claim 1 equipment, is characterized in that, described backheatDevice (104) is back-shaped, is placed on the surrounding of alcohol trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029091.8U CN205236003U (en) | 2015-12-10 | 2015-12-10 | Wide warm area low -temperature constant -temperature groove equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029091.8U CN205236003U (en) | 2015-12-10 | 2015-12-10 | Wide warm area low -temperature constant -temperature groove equipment |
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| CN205236003U true CN205236003U (en) | 2016-05-18 |
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| CN201521029091.8U Active CN205236003U (en) | 2015-12-10 | 2015-12-10 | Wide warm area low -temperature constant -temperature groove equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678462A (en) * | 2017-11-01 | 2018-02-09 | 泰安磐然测控科技有限公司 | Constant speed groove and constant speed groove constant speed cooling system and constant speed groove constant speed cool-down method |
| CN113049144A (en) * | 2021-03-29 | 2021-06-29 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Heat insulation cavity for temperature measurement system to perform full-system-width low-temperature comprehensive calibration equipment |
-
2015
- 2015-12-10 CN CN201521029091.8U patent/CN205236003U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678462A (en) * | 2017-11-01 | 2018-02-09 | 泰安磐然测控科技有限公司 | Constant speed groove and constant speed groove constant speed cooling system and constant speed groove constant speed cool-down method |
| 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 |
| CN113049144A (en) * | 2021-03-29 | 2021-06-29 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Heat insulation cavity for temperature measurement system to perform full-system-width low-temperature comprehensive calibration equipment |
| CN113049144B (en) * | 2021-03-29 | 2024-04-09 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Heat insulation cavity for full-system wide low-temperature comprehensive calibration equipment of temperature measurement system |
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