CN105833923A - High-precision high-low-temperature constant-temperature testing device - Google Patents
High-precision high-low-temperature constant-temperature testing device Download PDFInfo
- Publication number
- CN105833923A CN105833923A CN201610304837.4A CN201610304837A CN105833923A CN 105833923 A CN105833923 A CN 105833923A CN 201610304837 A CN201610304837 A CN 201610304837A CN 105833923 A CN105833923 A CN 105833923A
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- China
- Prior art keywords
- temperature
- temperature control
- ventilation duct
- seal closure
- air
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/08—Ergonomic or safety aspects of handling devices
- B01L2200/087—Ergonomic aspects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1838—Means for temperature control using fluid heat transfer medium
- B01L2300/1844—Means for temperature control using fluid heat transfer medium using fans
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention discloses a high-precision high-low-temperature constant-temperature testing device which comprises a bedplate (1). The bedplate (1) is provided with a ventilating pipe (2), the upper portion of the ventilating pipe (2) is provided with a seal cover (3), the bedplate (1) is provided with ventilating holes (4) which are formed by surrounding the ventilating pipe (2), the bottom of the bedplate (1) is provided with an air outlet box (5) communicated with the ventilating holes (4), the air outlet box (5) is connected with a temperature control cavity (7) through an air outlet pipe (6), the temperature control cavity (7) is communicated with the lower portion of the ventilating pipe (2), and a condenser pipe (8) and a heating pipe (9) are arranged in the temperature control cavity (7) and connected with a temperature sensor (10) arranged in the seal cover (3) through a control unit; the side of the temperature control cavity (7) is provided with a side fan (11), and the lower end of the ventilating pipe (2) is provided with a bottom fan (12). The high-precision high-low-temperature constant-temperature testing device has the advantages of being small in temperature control fluctuation and good in temperature uniformizing effect.
Description
Technical field
The present invention relates to a kind of high/low temperature constant-temperaturetest test device, the height of a kind of stable temperature control
Precision high/low temperature constant-temperaturetest test device.
Background technology
Traditional high/low temperature calorstat operation principle has multiple, currently used most be calorstat
Internal gas-circulating system of putting, temperature is heated up by compression mechanism cold air, electric-heating-wire-heating,
Make gas circulation temperature lowering or intensification in casing, then by precision temperature control device and regulation circulated air
In amount and direction make casing, hygral equilibrium is uniform.Use the high-low temperature chamber simple in construction of this principle,
But because of the mode difference of circulative convection, cause controlling result and be inaccurate, it is impossible to realize high accuracy
The technology requirement of calorstat.
Other principle also has temperature to pass through outside thermostatic water bath set water temperature, makes the water of temperature constant
In test casing, cycle heat exchange balances with thermostatic water bath design temperature to reach temperature in casing,
Thus effective control chamber body temperature.But the deficiency of this kind of principle is to arrive stabilization time relatively
Long, applicable situation is limited, under conditions of more than 100 DEG C or less than 0 DEG C and inapplicable.
The most generally using the high/low temperature calorstat of above-mentioned principle, technical specification can only achieve as follows
Require: temperature range: 0 DEG C～100 DEG C, temperature deviation ± 1.0 DEG C, temperature uniformity 1.0 DEG C,
Temperature fluctuation ± 0.5 DEG C；Temperature range :-60 DEG C～0 DEG C or 100 DEG C～200 DEG C, temperature is inclined
Difference ± 2.0 DEG C, temperature uniformity 3.0 DEG C, temperature fluctuation ± 0.5 DEG C；Temperature range: 200 DEG C
～300 DEG C, temperature deviation ± 3.0 DEG C, temperature uniformity 3.0 DEG C, temperature fluctuation ± 2 DEG C.
Summary of the invention
It is an object of the invention to, it is provided that a kind of high accuracy high/low temperature constant-temperaturetest test device.This
Bright have that temperature control fluctuation degree is little and the preferable feature of even temperature effect.
Technical scheme: a kind of high accuracy high/low temperature constant-temperaturetest test device, its feature exists
In: including that platen, platen are provided with ventilation duct, ventilation duct top is provided with seal closure, on platen
It is provided around the air vent that ventilation duct is arranged, bottom platen, is communicated with the box of giving vent to anger of air vent,
Box of giving vent to anger connects through escape pipe has temperature control chamber, temperature control chamber to connect with ventilation duct bottom, temperature control intracavity
Being provided with condensing tube and add heat pipe, condensing tube is arranged on sealing with adding heat pipe through control unit connection
Temperature sensor in cover；Described temperature control chamber sidepiece is provided with sidepiece fan, described ventilation duct lower end
It is provided with bottom fan.
In aforesaid high accuracy high/low temperature constant-temperaturetest test device, described air vent is to be with ventilation duct
The 1-3 at center encloses air vent.
In aforesaid high accuracy high/low temperature constant-temperaturetest test device, described seal closure is provided with elevator
Structure, elevating mechanism includes that the hydraulic stem being arranged symmetrically with, the upper end of two hydraulic stems are provided with crossbeam,
Crossbeam is connected with seal closure through connector.
In aforesaid high accuracy high/low temperature constant-temperaturetest test device, described platen is provided with sealing gasket,
Seal closure is arranged on sealing gasket.
In aforesaid high accuracy high/low temperature constant-temperaturetest test device, described high accuracy high/low temperature constant temperature tries
The constant temperature method of experiment device is, by sidepiece fan by by condensing tube with add the sky after thermal management system
Gas is delivered in ventilation duct, and the bottom fan of ventilation duct lower end delivers the air in seal closure,
Flow downward after encountering seal closure inner top, and give vent to anger in box by air vent entrance, box of giving vent to anger
Interior air enters to temperature control intracavity through escape pipe, by seal closure under the priming of sidepiece fan
Temperature sensor sense in real time, and via controller to condensing tube and adds heat pipe and controls
System, thus the air of temperature control intracavity is carried out temperature control.
Compared with prior art, the present invention is by ventilation duct, seal closure, air vent and temperature control chamber
Deng formation air duct, and the fan of ad-hoc location is coordinated to carry out priming, it is ensured that internal air stream
Dynamic stability so that temperature control fluctuation degree is little, even temperature effect is preferable, and temperature fluctuation is ± 0.03 DEG C,
Temperature uniformity is ＜ 0.05 DEG C, and stability and the uniformity of temperature control are greatly improved, and
And materials'use is conventional, can be significantly reduced to this.The present invention also uses hydraulic cylinder to enter seal closure
Row lifting, convenient use.The present invention is when transmitting air, by first after ventilation duct blow out air
Encounter seal closure top, can effectively buffer wind speed, and energy homogeneous air so that in seal closure
Air velocity stable, thus ensure temperature control effect.The air circulation system structure of the present invention is tight
Gather, connect compactedness strong, use stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of air vent.
Being labeled as in accompanying drawing: 1-platen, 2-ventilation duct, 3-seal closure, 4-air vent, 5-
Giving vent to anger box, 6-escape pipe, 7-temperature control chamber, 8-condensing tube, 9-adds heat pipe, 10-temperature sensing
Device, 11-sidepiece fan, fan bottom 12-, 13-hydraulic stem, 14-crossbeam, 15-connector,
16-sealing gasket.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings, but be not intended as right
The foundation that the present invention limits.
Embodiment.A kind of high accuracy high/low temperature constant-temperaturetest test device, is constituted as illustrated in fig. 1 and 2,
Including platen 1, platen 1 is provided with ventilation duct 2, and ventilation duct 2 top is provided with seal closure 3,
It is provided around the air vent 4 that ventilation duct 2 is arranged on platen 1, is communicated with leading to bottom platen 1
The box 5 of giving vent to anger of air holes 4, box 5 of giving vent to anger connects through escape pipe 6 temperature control chamber 7, temperature control chamber 7
Connect with ventilation duct 2 bottom, be provided with condensing tube 8 in temperature control chamber 7 and add heat pipe 9, condensing tube
8 have, through control unit connection, the temperature sensor 10 being arranged in seal closure 3 with adding heat pipe 9；
Described temperature control chamber 7 sidepiece is provided with sidepiece fan 11, and described ventilation duct 2 lower end is provided with bottom wind
Fan 12.Described ventilation duct 2 lower end extend out to give vent to anger the bottom of box 5.
Described air vent 4 is that the 1-3 centered by ventilation duct 2 encloses air vent.
Described seal closure 3 is provided with elevating mechanism, and elevating mechanism includes the hydraulic stem being arranged symmetrically with
13, the upper end of two hydraulic stems 13 is provided with crossbeam 14, and crossbeam 14 is through connector 15 and sealing
Cover 3 connection.
Described platen 1 is provided with sealing gasket 16, and seal closure 3 is arranged on sealing gasket 16.
According to aforesaid high accuracy high/low temperature constant-temperaturetest test device, described high accuracy high/low temperature constant temperature
The constant temperature method of assay device is, by sidepiece fan by by condensing tube with after adding thermal management system
Air is delivered in ventilation duct, and the bottom fan of ventilation duct lower end delivers the air to seal closure
In, flow downward after encountering seal closure inner top, and give vent to anger in box by air vent entrance, go out
Air in gas box enters to temperature control intracavity through escape pipe under the priming of sidepiece fan, by sealing
Temperature sensor in cover senses in real time, and via controller to condensing tube and adds heat pipe and carries out
Control, thus the air of temperature control intracavity is carried out temperature control.Controller is according to temperature sensor control
Condensing tube and add the mode of heat pipe can control mode routinely.
The present invention, can be as follows when specifically used: ventilation duct can use the pipe of diameter 160mm,
Seal closure uses the seal closure of heat-insulation and heat-preservation, and sidepiece fan is from adding heat pipe generally
120-160mm, sidepiece fan can use the fan blade of a diameter of 200mm, bottom fan to use
The fan blade of a diameter of 160mm.The motor connecting fan all uses 60w's.
The present invention forms air duct by ventilation duct, seal closure, air vent and temperature control chamber etc.,
And coordinate the fan of ad-hoc location to carry out priming, it is ensured that internal air stream Dynamic stability so that temperature control
Fluctuation degree is little, and even temperature effect is preferable, and temperature fluctuation is ± 0.03 DEG C, and temperature uniformity is ＜
0.05 DEG C, stability and the uniformity of temperature control are greatly improved, and materials'use are conventional,
Can be significantly reduced to this.The present invention also uses hydraulic cylinder to lift seal closure, convenient use.
The present invention is when transmitting air, by first encountering seal closure top, energy after ventilation duct blow out air
Effectively buffer wind speed, and energy homogeneous air so that the air velocity in seal closure is stable, from
And ensure temperature control effect.The air circulation system compact conformation of the present invention, connects compactedness strong,
Use stable.
Claims (5)
1. a high accuracy high/low temperature constant-temperaturetest test device, it is characterised in that: include platen (1),
Platen (1) is provided with ventilation duct (2), and ventilation duct (2) top is provided with seal closure (3), platform
The air vent (4) that ventilation duct (2) is arranged, platen (1) bottom it is provided around on plate (1)
Being communicated with the box of giving vent to anger (5) of air vent (4), box of giving vent to anger (5) is through escape pipe (6) even
Being connected to temperature control chamber (7), temperature control chamber (7) connect with ventilation duct (2) bottom, temperature control chamber (7)
Inside be provided with condensing tube (8) and add heat pipe (9), condensing tube (8) and add heat pipe (9) through control
Unit processed connects the temperature sensor (10) being arranged in seal closure (3)；Described temperature control chamber
(7) sidepiece is provided with sidepiece fan (11), and described ventilation duct (2) lower end is provided with bottom fan
(12)。
High accuracy high/low temperature constant-temperaturetest test device the most according to claim 1, its feature
It is: described air vent (4) is that the 1-3 centered by ventilation duct (2) encloses air vent.
High accuracy high/low temperature constant-temperaturetest test device the most according to claim 1, its feature
Being: described seal closure (3) is provided with elevating mechanism, elevating mechanism includes being arranged symmetrically with
Hydraulic stem (13), the upper end of two hydraulic stems (13) is provided with crossbeam (14), crossbeam (14)
It is connected with seal closure (3) through connector (15).
High accuracy high/low temperature constant-temperaturetest test device the most according to claim 1, its feature
Being: described platen (1) is provided with sealing gasket (16), seal closure (3) is arranged on sealing
On pad (16).
5. according to the high accuracy high/low temperature constant-temperaturetest test device described in any one of claim 1-4,
It is characterized in that: the constant temperature method of described high accuracy high/low temperature constant-temperaturetest test device is to pass through side
Portion's fan will be delivered in ventilation duct, under ventilation duct by condensing tube and the air after adding thermal management system
The bottom fan of end delivers the air in seal closure, encounters after seal closure inner top to dirty
Dynamic, and give vent to anger in box by air vent entrance, the air given vent to anger in box is in the priming of sidepiece fan
Lower enter to temperature control intracavity through escape pipe, the temperature sensor in seal closure feel in real time
Should, and via controller to condensing tube and adds heat pipe and is controlled, thus the air to temperature control intracavity
Carry out temperature control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304837.4A CN105833923B (en) | 2016-05-10 | 2016-05-10 | A kind of high-precision high/low temperature constant-temperaturetest test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304837.4A CN105833923B (en) | 2016-05-10 | 2016-05-10 | A kind of high-precision high/low temperature constant-temperaturetest test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105833923A true CN105833923A (en) | 2016-08-10 |
| CN105833923B CN105833923B (en) | 2017-11-14 |
Family
ID=56592242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610304837.4A Expired - Fee Related CN105833923B (en) | 2016-05-10 | 2016-05-10 | A kind of high-precision high/low temperature constant-temperaturetest test device |
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| Country | Link |
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| CN (1) | CN105833923B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108073192A (en) * | 2017-12-06 | 2018-05-25 | 上海华力微电子有限公司 | A kind of intelligent gas hood based on high/low-temperature impact system |
| CN108732199A (en) * | 2018-08-13 | 2018-11-02 | 苏州联讯仪器有限公司 | A kind of ultra high efficiency small size high/low temperature control device |
| CN112525254A (en) * | 2020-11-06 | 2021-03-19 | 浙江海洋大学 | Monitoring device for tuna transportation in ultralow temperature environment |
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| US6308776B1 (en) * | 1994-01-21 | 2001-10-30 | Fsi International, Inc. | Temperature control apparatus with recirculated coolant |
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| CN202823407U (en) * | 2012-08-30 | 2013-03-27 | 武汉钢铁(集团)公司 | Test chamber device capable of automatically controlling temperatures |
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| CN104913638A (en) * | 2015-07-07 | 2015-09-16 | 苏州热工研究院有限公司 | Small-size atmosphere constant temperature furnace for mechanics experimental machine |
| CN205587003U (en) * | 2016-05-10 | 2016-09-21 | 湖州唯立仪表厂 | High low -temperature constant -temperature test device of high accuracy |
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2016
- 2016-05-10 CN CN201610304837.4A patent/CN105833923B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308776B1 (en) * | 1994-01-21 | 2001-10-30 | Fsi International, Inc. | Temperature control apparatus with recirculated coolant |
| CN1940796A (en) * | 2005-09-28 | 2007-04-04 | 诠博国际实业有限公司 | Analog testing box at natural environmental convective temperature |
| CN201531962U (en) * | 2009-10-14 | 2010-07-21 | 庆声科技股份有限公司 | Low-humidity control structure of constant-temperature and constant-humidity testing device with low-humidity function |
| CN202204877U (en) * | 2011-07-21 | 2012-04-25 | 广州赛能冷藏科技有限公司 | Cold storage type constant temperature experiment case |
| CN202823407U (en) * | 2012-08-30 | 2013-03-27 | 武汉钢铁(集团)公司 | Test chamber device capable of automatically controlling temperatures |
| CN102974406A (en) * | 2012-11-14 | 2013-03-20 | 天津天维移动通讯终端检测有限公司 | Constant temperature humidity chamber |
| CN203489381U (en) * | 2013-07-18 | 2014-03-19 | 李明 | Ventilation system used for constant-temperature constant-humidity laboratory |
| CN104913638A (en) * | 2015-07-07 | 2015-09-16 | 苏州热工研究院有限公司 | Small-size atmosphere constant temperature furnace for mechanics experimental machine |
| CN205587003U (en) * | 2016-05-10 | 2016-09-21 | 湖州唯立仪表厂 | High low -temperature constant -temperature test device of high accuracy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108073192A (en) * | 2017-12-06 | 2018-05-25 | 上海华力微电子有限公司 | A kind of intelligent gas hood based on high/low-temperature impact system |
| CN108732199A (en) * | 2018-08-13 | 2018-11-02 | 苏州联讯仪器有限公司 | A kind of ultra high efficiency small size high/low temperature control device |
| CN112525254A (en) * | 2020-11-06 | 2021-03-19 | 浙江海洋大学 | Monitoring device for tuna transportation in ultralow temperature environment |
| CN112525254B (en) * | 2020-11-06 | 2022-02-22 | 浙江海洋大学 | Monitoring device for tuna transportation in ultralow temperature environment |
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| Publication number | Publication date |
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| CN105833923B (en) | 2017-11-14 |
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Granted publication date: 20171114 Termination date: 20180510 |