CN209696926U - High/low temperature vacuum test case - Google Patents
High/low temperature vacuum test case Download PDFInfo
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- CN209696926U CN209696926U CN201821467451.6U CN201821467451U CN209696926U CN 209696926 U CN209696926 U CN 209696926U CN 201821467451 U CN201821467451 U CN 201821467451U CN 209696926 U CN209696926 U CN 209696926U
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- vacuum pump
- vacuum
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- cabinet
- low temperature
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Abstract
The utility model discloses a kind of high/low temperature vacuum test casees, comprising: cabinet, vacuum system and temperature control system；The cabinet is made of shell and inner casing, is hollow between shell and inner casing；The vacuum system includes three-level vacuum pump, level-one vacuum pump and two-stage vacuum pump；The level-one vacuum pump and secondary vacuum series connection of pumps, two-stage vacuum pump are connect by pipeline with cabinet；The three-level vacuum pump is connect with cabinet；The temperature control system is arranged in box house, including radiant panel, cryogenerator and high-temperature generator.The utility model can realize that high temperature, low temperature and vacuum etc. be single or simulation of combinational environment, can fast, easily simulate the various performances, life test such as electrical, mechanical, stability, heat distribution of the measured workpiece under various complex environments.
Description
Technical field
The utility model relates to a kind of testing equipments, more particularly to a kind of high/low temperature vacuum test case.
Background technique
In Industry Control and spacecraft application, product works in the complex environments such as high/low temperature, high vacuum, by temperature
Variation and pressure influence, may cause component seal break-off, solder joint cracking, material deformation situations such as and cause product to damage
It is bad.Therefore, service life to product under complex environment, reliability is needed to carry out simulation test in the research and development of product, testing process.
And similar product only completes single environment simulation at present, cannot be completed at the same time the combinational environment of vacuum, high/low temperature,
Prevent the various reality such as electrical, mechanical, stability, heat distribution of the test result from maximized reactor product under combinational environment
Service condition.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high/low temperature vacuum test case,
Single or combinational environment the simulations such as high temperature, low temperature and vacuum can be achieved, can fast, easily simulate measured workpiece various
The various performances, life test such as electrical, mechanical, stability, heat distribution under complex environment.
To solve the above problems, technical solution used by the utility model is as follows:
High/low temperature vacuum test case, comprising: cabinet, vacuum system and temperature control system；
The cabinet is made of shell and inner casing, is hollow between shell and inner casing；
The vacuum system includes three-level vacuum pump, level-one vacuum pump and two-stage vacuum pump；The level-one vacuum pump and two
Grade vacuum series connection of pumps, two-stage vacuum pump are connect by pipeline with cabinet；The three-level vacuum pump is connect with cabinet；
The temperature control system is arranged in box house, including radiant panel, cryogenerator and high-temperature generator.
Preferably, it is outwardly transmitted to reduce the energy of box house, the inner surface polishing treatment of inner casing.
Preferably, temperature sensor and pressure sensor are provided on pipeline and cabinet.
Preferably, pipeline is provided with low valve close to one end of cabinet.
Preferably, it is provided with high threshold on cabinet, positioned at the top of three-level vacuum pump.
Preferably, the level-one vacuum pump is direct-connected second level sliding vane rotary pump, and the two-stage vacuum pump is lobe pump, the three-level
Vacuum pump is cryogenic pump.
Preferably, the radiant panel is copper material, overall surface black；Radiant panel is distributed around testing stand, described low
Warm generator and high-temperature generator are mounted on the medial surface of radiant panel, towards testing stand.
Preferably, for the cryogenerator using liquid helium or liquid nitrogen as refrigerant, high-temperature generator uses infrared hair
Heat pipe is as heat source.
Preferably, thermal insulation board is provided between the radiant panel and inner casing.
Preferably, the pressure sensor is resistance/ionization compound type vacuum meter.
Preferably, low valve and the driver of high threshold are cylinder.
Preferably, it is provided with testing stand below the box house, the testing stand can be arranged below box house
Rolling bearing group on move.
Compared with prior art, the utility model has the beneficial effects that:
The utility model can realize that high temperature, low temperature and vacuum etc. be single or simulation of combinational environment, can be fast, easily
Simulate the various performances, life test such as electrical, mechanical, stability, heat distribution of the measured workpiece under various complex environments.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is entirety sectional view；
Fig. 3 is low and high temperature generator scheme of installation；
Wherein: cabinet 10；Shell 11；Inner casing 12；Thermal insulation board 13；Vacuum system 20；Three-level vacuum pump 21；Level-one vacuum pump
22；Two-stage vacuum pump 23；Temperature control system 30；Radiant panel 31；Cryogenerator 32；High-temperature generator 33；Low valve 40；High threshold
50；Temperature sensor 60；Pressure sensor 70；Pipeline 80；Testing stand 90；
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side ", "upper", "lower" and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model:
As shown in Figure 1, 2, high/low temperature vacuum test case, comprising: cabinet 10, vacuum system 20 and temperature control system 30；
The cabinet 10 includes the pressure-bearing shell being made of shell 11 and inner casing 12, is between shell 11 and inner casing 12
It is empty；It is arranged by double layer hollow, the intensity of pressure-bearing shell can be enhanced, while the insulating power of chamber can be increased；
Further, it is outwardly transmitted to reduce the energy inside cabinet 10, the inner surface polishing treatment of inner casing 12.
The vacuum system 20 includes three-level vacuum pump 21, level-one vacuum pump 22 and two-stage vacuum pump 23；The level-one is true
Sky pump 22 and two-stage vacuum pump 23 are connected, and two-stage vacuum pump 23 is connect by pipeline 80 with cabinet 10；The three-level vacuum pump 21
It is connect with cabinet 10.
The boot sequence of one, two, three vacuum pump are as follows: starting level-one vacuum pump 22 first, when vacuum degree is less than 1000Pa
When, start two-stage vacuum pump 23, when vacuum degree drops to 10Pa or less, starts three-level vacuum pump 21；Chamber in order to prevent
Damage, the closing sequence of one, two, three vacuum pump are as follows: first close three-level vacuum pump 21, then close two-stage vacuum pump 23, finally close
Level-one vacuum pump 22.
Further, temperature sensor 60 and pressure sensor 70 are provided on pipeline 80 and cabinet 10；Temperature passes
Sensor 60 and pressure sensor 70 are respectively used to the pressure inside detection pipeline 80 and cabinet 10；
Further, pipeline 80 is provided with low valve 40 close to one end of cabinet 10；Low valve 40 is opened for three-level vacuum pump 21
When dynamic, low valve 40 is closed, and the connection of level-one vacuum pump 22 and two-stage vacuum pump 23 and cabinet 10 is isolated；
Further, it is provided with high threshold 50 on cabinet 10, positioned at the top of three-level vacuum pump 21；High threshold 50 is closed, and is used for
When level-one vacuum pump 22 and the work of two-stage vacuum pump 23 and chamber stop working, three-level vacuum pump 21 is protected.
Further, the level-one vacuum pump 22 is direct-connected second level sliding vane rotary pump, and the two-stage vacuum pump 23 is lobe pump, institute
Stating three-level vacuum pump 21 is cryogenic pump；
As shown in Figure 2,3, the temperature control system 30 is arranged inside cabinet 10, including radiant panel 31, low temperature occur
Device 32 and high-temperature generator 33；
Further, the radiant panel 31 is copper material, overall surface black；Radiant panel 31 divides around testing stand 90
Cloth, the cryogenerator 32 and high-temperature generator 33 are mounted on the medial surface of radiant panel 31, towards testing stand 90.
Further, using liquid helium or liquid nitrogen as refrigerant, high-temperature generator 33 uses the cryogenerator 32
Infrared heating pipe is as heat source.
Further, thermal insulation board 13 is provided between the radiant panel 31 and inner casing 12；Thermal insulation board 13 can further decrease
External world transmitting of the energy to cabinet 10.
Further, the pressure sensor 70 is resistance/ionization compound type vacuum meter.
Further, low valve 40 and the driver of high threshold 50 are cylinder.
Further, 10 lower inside of cabinet is provided with testing stand 90, and the testing stand 90 can be in cabinet 10
It is moved in the rolling bearing group being arranged below portion, the pick-and-place of convenient tested object.
The citing of chamber operating procedure:
1. preparing: workpiece to be tested is placed on testing stand 90.
2. vacuumizing: starting chamber, first starting level-one vacuum pump 22, when vacuum degree is less than 1000Pa, starting two
Grade vacuum pump 23, when vacuum pump drops to 10Pa or less again, low valve is closed, and starts three-level vacuum pump 21, by the pressure of cabinet 10
Power is maintained at 0.1Pa.
3. low-temperature test: refrigerant liquid helium or liquid nitrogen are injected in cryogenerator 32, under the auxiliary of radiant panel 31,
The temperature inside cabinet 10 quickly can be down to -70 DEG C, complete the workpiece test under low-temperature condition.
4. high temperature test: closing cryogenerator 32, start high-temperature generator 33, by infrared heating pipe by cabinet 10
Internal temperature rises to 150 DEG C, completes the workpiece test under the condition of high temperature.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims
Within the scope of.
Claims (10)
1. high/low temperature vacuum test case characterized by comprising cabinet, vacuum system and temperature control system；
The cabinet is made of shell and inner casing, is hollow between shell and inner casing；
The vacuum system includes three-level vacuum pump, level-one vacuum pump and two-stage vacuum pump；The level-one vacuum pump and second level are true
Empty series connection of pumps, two-stage vacuum pump are connect by pipeline with cabinet；The three-level vacuum pump is connect with cabinet；
The temperature control system is arranged in box house, including radiant panel, cryogenerator and high-temperature generator.
2. high/low temperature vacuum test case as described in claim 1, it is characterised in that: the inner surface polishing treatment of inner casing.
3. high/low temperature vacuum test case as described in claim 1, it is characterised in that: be provided with temperature on pipeline and cabinet
Sensor and pressure sensor.
4. high/low temperature vacuum test case as described in claim 1, it is characterised in that: pipeline is provided with low close to one end of cabinet
Valve；High threshold is provided on cabinet, positioned at the top of three-level vacuum pump.
5. high/low temperature vacuum test case as described in claim 1, it is characterised in that: the level-one vacuum pump is direct-connected second level rotation
Piece pump, the two-stage vacuum pump is lobe pump, and the three-level vacuum pump is cryogenic pump.
6. high/low temperature vacuum test case as described in claim 1, it is characterised in that: the radiant panel is copper material, whole
Surface black；Radiant panel surround testing stand distribution, and the cryogenerator and high-temperature generator are mounted on the medial surface of radiant panel,
Towards testing stand.
7. high/low temperature vacuum test case as described in claim 1, it is characterised in that: the cryogenerator uses liquid helium or liquid
Nitrogen is as refrigerant, and the high-temperature generator is using infrared heating pipe as heat source.
8. high/low temperature vacuum test case as described in claim 1, it is characterised in that: be provided between the radiant panel and inner casing
Thermal insulation board.
9. high/low temperature vacuum test case as claimed in claim 3, it is characterised in that: the pressure sensor is resistance/ionization
Compound type vacuum meter.
10. high/low temperature vacuum test case as claimed in claim 4, it is characterised in that: the low valve and the driver of high threshold are
Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467451.6U CN209696926U (en) | 2018-09-09 | 2018-09-09 | High/low temperature vacuum test case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467451.6U CN209696926U (en) | 2018-09-09 | 2018-09-09 | High/low temperature vacuum test case |
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| Publication Number | Publication Date |
|---|---|
| CN209696926U true CN209696926U (en) | 2019-11-29 |
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ID=68634487
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821467451.6U Active CN209696926U (en) | 2018-09-09 | 2018-09-09 | High/low temperature vacuum test case |
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| CN (1) | CN209696926U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665423A (en) * | 2020-06-11 | 2020-09-15 | 国网山东省电力公司电力科学研究院 | Medium discharge system suitable for simulating complex environment and use method |
| CN112718025A (en) * | 2020-12-28 | 2021-04-30 | 倪加福 | Multilayer copious cooling test bin |
| CN114200237A (en) * | 2021-12-10 | 2022-03-18 | 泰州赛宝工业技术研究院有限公司 | High-precision high-low voltage test box and voltage stabilizing method thereof |
-
2018
- 2018-09-09 CN CN201821467451.6U patent/CN209696926U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665423A (en) * | 2020-06-11 | 2020-09-15 | 国网山东省电力公司电力科学研究院 | Medium discharge system suitable for simulating complex environment and use method |
| CN112718025A (en) * | 2020-12-28 | 2021-04-30 | 倪加福 | Multilayer copious cooling test bin |
| CN114200237A (en) * | 2021-12-10 | 2022-03-18 | 泰州赛宝工业技术研究院有限公司 | High-precision high-low voltage test box and voltage stabilizing method thereof |
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