CN101750227A - Operational capacity test device of low-temperature pressure gloves - Google Patents
Operational capacity test device of low-temperature pressure gloves Download PDFInfo
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- CN101750227A CN101750227A CN 200910244608 CN200910244608A CN101750227A CN 101750227 A CN101750227 A CN 101750227A CN 200910244608 CN200910244608 CN 200910244608 CN 200910244608 A CN200910244608 A CN 200910244608A CN 101750227 A CN101750227 A CN 101750227A
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Abstract
The invention relates to an operational capacity test device of a pair of low-temperature pressure gloves, comprising a vacuum system, a refrigerating system and a temperature measuring system. The operational capacity test device is characterized in that the vacuum system comprises a vacuum pump and a piezoresistive vacuum gauge; the refrigerating system comprises a pressure Dewar flask and a low-temperature pressure chamber; the temperature measuring system comprises a temperature sensor, a logging device and a computer; wherein air in the low-temperature chamber is extracted by the vacuum pump so as to realize differential pressure inside and outside the gloves; a low-temperature environment of the low-temperature pressure chamber is realized by liquid-nitrogen cooling in the pressure Dewar flask; the temperature measuring system is used for acquiring, monitoring at the real time, recording temperature values of all temperature-measuring points and ensuring that the measuring temperature reaches technical requirements. The operational capacity test device can not only satisfy pressure and visual requirements on a normal-temperature pressure test device, but also provide a low-temperature test environment from the normal temperature to -100 DEG C according to test requirements, realize the low-temperature pressure two-factor environment and carry out the operational capacity test on the gloves under the pressure condition.
Description
(1) technical field:
The present invention relates to a kind of being mainly used in and under low temperature environment, test the proving installation that inside and outside differential pressure gloves work capacity is arranged.
(2) background technology:
When gloves have inside and outside differential pressure, can produce bigger influence to the work capacity of gloves, the work capacity of setting about at low temperature environment descends even more serious especially.But have only normal temperature that compression testing device is arranged in the world, also not having can provide low temperature and the gloves work capacity proving installation of pressing the dual factors operating environment is arranged.The present invention can not only satisfy pressure and the visual requirement that normal temperature has compression testing device, also can provide the test environment of the low temperature gloves work capacity from normal temperature to-100 ℃ according to test request.
(3) summary of the invention:
The objective of the invention is to design a kind of operational capacity test device of low-temperature pressure gloves, utilize this proving installation to realize different low temperature and environment under low pressure in the low-temperature pressure cabin, adversary cover carries out low temperature the work capacity test experiments pressure ring border under, and whether evaluation gloves work capacity reaches relevant criterion.
The present invention is a kind of operational capacity test device of low-temperature pressure gloves, and as shown in Figure 1, this device mainly is divided into 3 parts: vacuum system, refrigeration system and temp measuring system.
Vacuum system is made up of vacuum pump and pressure drag vacuum meter.Major function is to realize the gloves inside and outside differential pressure by air in the vacuum pump extraction low-temperature pressure cabin.
Refrigeration system is by being made up of pressure Dewar flask and low-temperature pressure cabin.Major function is by there being the liquid nitrogen of pressing in the Dewar flask to realize the low temperature environment in low-temperature pressure cabin.
Temp measuring system is made up of temperature sensor, logging and computing machine.Major function is to gather, monitor and write down in real time the temperature value of point for measuring temperature, guarantees that temperature reaches requirement of experiment in the low-temperature pressure cabin.
As shown in Figure 1, vacuum system A takes out pressure by 4 pairs of low-temperature pressure cabins 1 of vacuum pump, by the force value in the pressure drag vacuum meter 5 monitoring low-temperature pressure cabins 1, realizes the inside and outside differential pressure of gloves.The pressure controling precision of this system can reach ± 1kPa.
Refrigeration system B is the core that this device is realized low-temperature environment.Open the valve of pressure Dewar flask 3, make the dress liquid nitrogen flow into low-temperature pressure cabin 1 bulkhead (being made into) outside,, can make low-temperature pressure cabin 1 interior temperature reach extremely low temperature requirement because liquid nitrogen will absorb a large amount of heats in being gasificated as the process of nitrogen by stainless steel.Also adopt insulation material 9 (as asbestos, cotton etc.) to be incubated outside the low-temperature pressure cabin 1, the cold of low temperature nitrogen is remained in the insulation material 9, avoid too much thermal loss.The control of the temperature of native system can have the valve opening of pressing on the Dewar flask 3 to realize by adjusting, in the low-temperature pressure cabin temperature control precision can reach ± 2 ℃.
Temp measuring system C is by temperature sensor 8 thermometrics, temperature sensor 8 links to each other with logging 6, can be converted to digital signal to temperature signal, logging 6 output termination computing machines 7, show temperature in the low-temperature pressure cabin 1 in real time by temperature data acquisition software, instruct the aperture of valve based on the exploitation of KingView software platform.
The present invention is a kind of operational capacity test device of low-temperature pressure gloves, its advantage is: utilize liquid nitrogen that the low-temperature pressure cabin is lowered the temperature, and take out pressure with vacuum pump, low temperature can be provided and the gloves work capacity test environment of pressing dual factors is arranged, and then the adversary overlaps the operation ability and carries out the evaluation test experiment.
(4) description of drawings:
Fig. 1. operational capacity test device of low-temperature pressure gloves synoptic diagram of the present invention
1. low-temperature pressure cabin 2. organic glass hatch doors 3. have the pressure Dewar flask
4. vacuum pump 5. pressure drag vacuum meters 6. loggings
7. computer A. vacuum system B. refrigeration system
C. temp measuring system
Fig. 2. low-temperature pressure cabin sectional view
8. temperature sensor 9. insulation materials 10. vacuum pump interfaces
11. the pressure drag vacuum meter connects 12. logging interfaces, 13. low temperature cool air inlets
14. low temperature cold-air vent
(5) embodiment:
The present invention is a kind of operational capacity test device of low-temperature pressure gloves, and as shown in Figure 1, this device mainly is divided into 3 parts: vacuum system A, refrigeration system B and temp measuring system C.Vacuum system A is made up of vacuum pump 4 and pressure drag vacuum meter 5, and major function is to extract low-temperature pressure cabin 1 interior air by vacuum pump 4 to realize the gloves inside and outside differential pressure.The organic glass hatch door 2 that is fixed with gloves is installed on the low-temperature pressure cabin 1, adopts the teflin ring sealing between cabin body and the organic glass hatch door 2, to ensure the leakproofness in low-temperature pressure cabin 1.Open 4 pairs of low-temperature pressure cabins 1 of vacuum pump and take out pressure, observe the force value that pressure drag vacuum meter 5 shows, vacuum pump 4 stops to take out pressure when reaching requirement of experiment.Refrigeration system B is by being made up of pressure Dewar flask 3 and low-temperature pressure cabin 1, and major function is by the low temperature environment in the liquid nitrogen realization low-temperature pressure cabin 1 of pressing in the Dewar flask 3 is arranged.Open the valve of pressing Dewar flask 3 make liquid nitrogen by water pipe line spraying to the outer wall in low-temperature pressure cabin 1, can absorb big calorimetric from bulkhead during liquid nitrogen gasification, and the pressure chamber wall can absorb heat in the cabin, thereby makes the temperature environment in the low-temperature pressure cabin 1 reach experiment low temperature.Controlling opening of valve then makes temperature stabilization in the low-temperature pressure cabin 1 in experimental temperature.1 outside, low-temperature pressure cabin also adopts insulation material 9 (as asbestos, cotton etc.) to be incubated, and the cold of low temperature nitrogen is remained in the insulation material 9, avoids too much thermal loss, as shown in Figure 2.In addition, when carrying out the experiment of gloves grasping cryogenic object, can 1 inside be installed by the grasping bar of inner hollow in the low-temperature pressure cabin, one end links to each other with low temperature cool air inlet 13, the other end links to each other with low temperature cold-air vent 14, can require to provide required low temperature cold air according to experiment test, cooling grasping bar.Low temperature cool air inlet 13 and low temperature cold-air vent 14 should seal when not carrying out the grasping experiment.Temp measuring system C is made up of temperature sensor 8, logging 6 and computing machine 7, and major function is to gather, monitor and write down in real time the temperature value of point for measuring temperature.The temperature signal of point for measuring temperature is transferred to logging 6 by temperature sensor 8, convert temperature signal to digital signal, logging 6 output termination computing machines 7, show in real time and monitoring and record temperature data by KingView temperature data acquisition software, can instruct simultaneously to regulate has the valve opening of pressing Dewar flask 3, guarantees that probe temperature reaches requirement of experiment.
The implementation step of this operational capacity test device of low-temperature pressure gloves is as follows:
Step 1, the organic glass hatch door 2 that will be fixed with gloves are installed on the low-temperature pressure cabin 1 and guarantee the leakproofness in low-temperature pressure cabin 1.
Step 2, open the valve of pressing Dewar flask 3, make liquid nitrogen to the outer wall in low-temperature pressure cabin 1, begin cooling it by water pipe line spraying.Simultaneously, open the real-time monitor temperature data of KingView temperature data acquisition software, when the temperature value in the low-temperature pressure cabin 1 reached requirement of experiment, regulating had the valve opening of pressing Dewar flask 3, made the temperature in the low-temperature pressure cabin 1 keep stable.
Step 4, begin to carry out gloves and work capacity experiment under the press strip spare is arranged at low temperature.
Step 5, experiment finish, and close the valve of pressing Dewar flask 3 and the power supply of pressure drag vacuum meter 5, utilize the temperature data in the experiment of KingView temperature data acquisition software records, 7 the power supply of shutting down computer.
Claims (5)
1. an operational capacity test device of low-temperature pressure gloves comprises 3 parts: vacuum system, refrigeration system and temp measuring system; It is characterized in that: vacuum system is made up of vacuum pump and pressure drag vacuum meter, and refrigeration system is by being made up of pressure Dewar flask and low-temperature pressure cabin, and temp measuring system is made up of temperature sensor, logging and computing machine; Wherein, realize the gloves inside and outside differential pressure by air in the vacuum pump extraction low temperature chamber; By being arranged, the liquid nitrogen cooling of pressing in the Dewar flask realizes the low temperature environment in low-temperature pressure cabin; Temp measuring system is used for gathering, monitoring in real time and write down the temperature value of each point for measuring temperature, guarantees that probe temperature reaches technical requirement.Can realize in the low-temperature pressure cabin that low temperature has the dual factors of pressure environment, adversary's cover carries out low temperature work capacity test under the press strip spare.
2. operational capacity test device of low-temperature pressure gloves according to claim 1, it is characterized in that: the required low temperature environment of gloves adopts liquid nitrogen that pressure bulkhead is freezed, absorb heat in the cabin by the pressure chamber wall, environment reaches experiment low temperature in the cabin thereby make.
3. operational capacity test device of low-temperature pressure gloves according to claim 1, it is characterized in that: low-temperature pressure also adopts insulation material (as asbestos, cotton etc.) to be incubated out of my cabin, the cold of low temperature nitrogen is remained in the insulation material, avoid too much thermal loss.
4. operational capacity test device of low-temperature pressure gloves according to claim 1, it is characterized in that: low-temperature pressure cabin body is made by stainless steel, fixedly the low-temperature pressure hatch door of gloves adopts organic glass or other transparent materials, adopts the sealing of organic material (as teflon) O-ring seal between cabin body and the organic glass hatch door.
5. operational capacity test device of low-temperature pressure gloves according to claim 1 is characterized in that: can have the work capacity of pressure test request that required low temperature cold air is provided according to gloves low temperature in the low-temperature pressure cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910244608 CN101750227B (en) | 2009-12-31 | 2009-12-31 | Operational capacity test device of low-temperature pressure gloves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910244608 CN101750227B (en) | 2009-12-31 | 2009-12-31 | Operational capacity test device of low-temperature pressure gloves |
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| CN101750227A true CN101750227A (en) | 2010-06-23 |
| CN101750227B CN101750227B (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910244608 Expired - Fee Related CN101750227B (en) | 2009-12-31 | 2009-12-31 | Operational capacity test device of low-temperature pressure gloves |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944464A (en) * | 2012-09-24 | 2013-02-27 | 大连理工大学 | Visual cryogenic mechanical testing device |
| CN104359939A (en) * | 2014-06-16 | 2015-02-18 | 北京航空航天大学 | Device for simulating hand heat dissipation capability in high-low temperature low-pressure environment |
| CN106556511A (en) * | 2016-11-24 | 2017-04-05 | 安徽皖拓自动化有限公司 | Valve low-temperature deep assay device cryogenic system based on liquid nitrogen refrigerant |
| CN108548843A (en) * | 2018-04-13 | 2018-09-18 | 北京航空航天大学 | Hand heat-sinking capability simulator under high/low temperature environment under low pressure |
| DE202021106449U1 (en) | 2021-11-26 | 2021-12-06 | Mustafa Basthikodi | Smart gloves for measuring pressure and monitoring skin health |
| CN114088934A (en) * | 2021-11-12 | 2022-02-25 | 洪子健 | Intelligent quality determination method and system for labor protection gloves |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100552416C (en) * | 2006-01-09 | 2009-10-21 | 四川大学 | The supervising device of fluid sample produced under low temperature and method thereof |
| CN101561327B (en) * | 2009-05-21 | 2011-05-18 | 北京航空航天大学 | Ultra-low temperature grip strength test device |
-
2009
- 2009-12-31 CN CN 200910244608 patent/CN101750227B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944464A (en) * | 2012-09-24 | 2013-02-27 | 大连理工大学 | Visual cryogenic mechanical testing device |
| CN102944464B (en) * | 2012-09-24 | 2014-07-23 | 大连理工大学 | Visual cryogenic mechanical testing device |
| CN104359939A (en) * | 2014-06-16 | 2015-02-18 | 北京航空航天大学 | Device for simulating hand heat dissipation capability in high-low temperature low-pressure environment |
| CN106556511A (en) * | 2016-11-24 | 2017-04-05 | 安徽皖拓自动化有限公司 | Valve low-temperature deep assay device cryogenic system based on liquid nitrogen refrigerant |
| CN108548843A (en) * | 2018-04-13 | 2018-09-18 | 北京航空航天大学 | Hand heat-sinking capability simulator under high/low temperature environment under low pressure |
| CN114088934A (en) * | 2021-11-12 | 2022-02-25 | 洪子健 | Intelligent quality determination method and system for labor protection gloves |
| DE202021106449U1 (en) | 2021-11-26 | 2021-12-06 | Mustafa Basthikodi | Smart gloves for measuring pressure and monitoring skin health |
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|---|---|
| CN101750227B (en) | 2012-12-19 |
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