CN107297227A - A kind of low temperature impact test box liquid nitrogen spraying device - Google Patents
A kind of low temperature impact test box liquid nitrogen spraying device Download PDFInfo
- Publication number
- CN107297227A CN107297227A CN201710545868.3A CN201710545868A CN107297227A CN 107297227 A CN107297227 A CN 107297227A CN 201710545868 A CN201710545868 A CN 201710545868A CN 107297227 A CN107297227 A CN 107297227A
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- low temperature
- shower nozzle
- impeller
- impact test
- 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.)
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention provides a kind of low temperature impact test box liquid nitrogen spraying device, including low temperature cavity；Low temperature inside cavity is less than the liquid nitrogen division board of low temperature housing depth provided with height, and low temperature cavity is isolated into low temperature chamber and liquid nitrogen spraying area；Liquid nitrogen spraying area is provided with liquid nitrogen pipe, and liquid nitrogen pipe port is provided with shower nozzle, and the height of shower nozzle is less than the top of liquid nitrogen division board；It is provided with below shower nozzle below the fin being connected on low temperature cavity inner wall, fin and is provided with impeller, impeller is connected with external motor；Blast pipe has been additionally provided with affiliated low temperature chamber interior walls；Liquid nitrogen is sprayed downwards by liquid nitrogen pipe by shower nozzle, after fin, is broken up by impeller, is converted into gas nitrogen；When low temperature chamber air pressure increases, it is exhausted by blast pipe；Motor provides power for the motion of impeller.The low temperature impact test box liquid nitrogen spraying device that the present invention is provided solves low temperature chamber limit low temperature and preferably realizes liquid nitrogen phase transformation, prevents liquid nitrogen from being contacted with the direct of test products.
Description
Technical field
The present invention relates to environmental simulation test technical field, more particularly to a kind of low temperature impact test box liquid nitrogen spraying dress
Put.
Background technology
Environmental simulation test is that spacecraft tests essential link on ground.In ground experiment, checking spacecraft and its
The structural behaviour of parts is often related to heat test.The species of heat test is various, including vacuum thermal test and normal pressure heat test.
High and low temperature impact test is one kind of normal pressure heat test, for test material structure or composite, under moment
Lower patient degree of continuous environment through very high temperature and extremely low temperature, is able to detect sample because expanding with heat and contract with cold within the shortest time
Caused chemical change or physical injury, it is characterized in that big, the warm variable Rate of temperature change scope is fast.
Some current low temperature impact test boxes are designed to two-box type, hot room and low temperature chamber independence temperature control, test products
Changed by hand basket between hot room and low temperature chamber.However, using refrigeration machine cooling mode low temperature chamber, portion can not be met more
Split pole limit low temperature is the experiment of liquid nitrogen temperature.Therefore, the invention provides a kind of liquid nitrogen spraying of low temperature impact test box dress
Put, available for the low temperature impact test box that limit low temperature is liquid nitrogen temperature.
The content of the invention
It is an object of the invention to provide a kind of low temperature impact test box liquid nitrogen spraying device, to solve existing low temperature
Room can not meet the problem of part test limit low temperature is liquid nitrogen temperature.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of low temperature impact test box liquid nitrogen is provided
Spray equipment, including low temperature cavity；The low temperature inside cavity is less than the liquid nitrogen division board of low temperature housing depth provided with height, will
The low temperature cavity is isolated into low temperature chamber and liquid nitrogen spraying area；
The liquid nitrogen spraying area is provided with liquid nitrogen pipe, and liquid nitrogen pipe port is provided with shower nozzle, and the height of the shower nozzle is less than
The top of the liquid nitrogen division board；It is provided with below the fin being connected on low temperature cavity inner wall, fin and sets below the shower nozzle
Impeller is equipped with, the impeller is connected with external motor；Blast pipe has been additionally provided with affiliated low temperature chamber interior walls；
Liquid nitrogen is sprayed downwards by liquid nitrogen pipe by the shower nozzle, after the fin, is broken up by the impeller, is turned
Turn to gas nitrogen；When the low temperature chamber air pressure increases, it is exhausted by the blast pipe；The motor carries for the motion of impeller
For power.
Further, the liquid nitrogen division board top is provided with inclined baffle plate, for stopping the liquid that the shower nozzle sprays
Nitrogen enters low temperature chamber.
Further, the baffle plate is fin structure.
Further, the shower nozzle is internally provided with heat exchange conduit, the rate of gasification for improving liquid nitrogen.
The low temperature impact test box liquid nitrogen spraying device that the present invention is provided solves low temperature chamber limit low temperature and preferably
Liquid nitrogen phase transformation is realized, prevents liquid nitrogen from being contacted with the direct of test products.
Brief description of the drawings
Invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is that the right side of low temperature impact test box liquid nitrogen spraying device in the embodiment of the present invention regards structure chart；
Fig. 2 is the overlooking structure figure of low temperature impact test box liquid nitrogen spraying device in the embodiment of the present invention；
Fig. 3 is that low temperature impact test box liquid nitrogen spraying device faces structure chart in the embodiment of the present invention；
Fig. 4 is the nozzle structure figure of low temperature impact test box liquid nitrogen spraying device in the embodiment of the present invention.
In figure, 1- low temperature cavitys, 2- liquid nitrogen division boards, 3- impellers, 4- motors, 5- fins, 6- shower nozzles, 7- slanting baffles, 8-
Liquid nitrogen pipe, 9- blast pipes, 10- low temperature chambers, 11- heat exchange conduits, 12- liquid nitrogen sprayings mouthful.
Embodiment
Low temperature impact test box liquid nitrogen spraying device proposed by the present invention is made below in conjunction with the drawings and specific embodiments
It is further described.According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted
That accompanying drawing is using very simplified form and uses non-accurately ratio, only to it is convenient, lucidly aid in illustrating this hair
The purpose of bright embodiment.
A kind of low temperature impact test box liquid nitrogen spraying device that the present invention is provided, is mainly isolated by low temperature cavity, liquid nitrogen
The compositions such as plate, impeller, motor, fin, shower nozzle, slanting baffle, liquid nitrogen pipe, blast pipe, low temperature chamber, heat exchange conduit, liquid nitrogen spraying mouthful.
The low temperature cavity 1 is that the structure of liquid nitrogen spraying device is overall, and the low temperature cavity 1 is by the liquid nitrogen division board 2
The low temperature chamber 10 and liquid nitrogen spraying area are divided into, the liquid nitrogen division board 2 is welded with the low temperature cavity 1.The low temperature chamber
10 communicate with the blast pipe 9, and the gas nitrogen pressure rise in the low temperature chamber 10 can be discharged into air.
Liquid nitrogen is delivered to the shower nozzle 6 by the liquid nitrogen spraying area by the liquid nitrogen pipe, by the liquid nitrogen spraying mouthful 12
Outflow.Liquid nitrogen is broken up after the fin 5 heat exchange by the impeller 3, is converted into gas nitrogen, the fin 5 and the low temperature cavity
Body 1 is welded.The impeller 3 is connected with the motor 4, and the motor 4, which is rotated, drives the impeller 3 to rotate, enhancing liquid nitrogen and sky
Gas heat convection.
Exchanged heat conduit 11 described in the indoor design of shower nozzle 6, and liquid nitrogen has partly been undergone phase transition after the heat exchange conduit 11,
Lift liquid nitrogen gasification rate.
The slanting baffle 7 is welded with the liquid nitrogen division board 2, and the slanting baffle 7 prevents the liquid nitrogen spraying mouthful 12 from flowing out
Liquid nitrogen be splashed into the low temperature chamber 10, be designed as fin structure.
Obviously, those skilled in the art can carry out various changes and the essence deformed without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (4)
1. a kind of low temperature impact test box liquid nitrogen spraying device, it is characterised in that including low temperature cavity；In the low temperature cavity body
Portion is less than the liquid nitrogen division board of low temperature housing depth provided with height, and the low temperature cavity is isolated into low temperature chamber and liquid nitrogen spraying
Area；
The liquid nitrogen spraying area is provided with liquid nitrogen pipe, and liquid nitrogen pipe port is provided with shower nozzle, and the height of the shower nozzle is less than described
The top of liquid nitrogen division board；It is provided with below the fin being connected on low temperature cavity inner wall, fin and is provided with below the shower nozzle
Impeller, the impeller is connected with external motor；Blast pipe has been additionally provided with affiliated low temperature chamber interior walls；
Liquid nitrogen is sprayed downwards by liquid nitrogen pipe by the shower nozzle, after the fin, is broken up, is converted into by the impeller
Gas nitrogen；When the low temperature chamber air pressure increases, it is exhausted by the blast pipe；The motor provides dynamic for the motion of impeller
Power.
2. low temperature impact test box liquid nitrogen spraying device as claimed in claim 1, it is characterised in that the liquid nitrogen division board
Top is provided with inclined baffle plate, for stopping that the liquid nitrogen that the shower nozzle sprays enters low temperature chamber.
3. low temperature impact test box liquid nitrogen spraying device as claimed in claim 2, it is characterised in that the baffle plate is fin
Structure.
4. low temperature impact test box liquid nitrogen spraying device as claimed in claim 1, it is characterised in that set inside the shower nozzle
Heat exchange conduit is equipped with, the rate of gasification for improving liquid nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545868.3A CN107297227A (en) | 2017-07-06 | 2017-07-06 | A kind of low temperature impact test box liquid nitrogen spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545868.3A CN107297227A (en) | 2017-07-06 | 2017-07-06 | A kind of low temperature impact test box liquid nitrogen spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107297227A true CN107297227A (en) | 2017-10-27 |
Family
ID=60136369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710545868.3A Pending CN107297227A (en) | 2017-07-06 | 2017-07-06 | A kind of low temperature impact test box liquid nitrogen spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107297227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108217913A (en) * | 2018-02-05 | 2018-06-29 | 苏州思上环保科技有限公司 | A kind of sewage bactericidal unit |
| CN110404593A (en) * | 2019-07-15 | 2019-11-05 | 重庆哈丁环境试验技术股份有限公司 | High-strength insulation cabinet suitable for high low temperature cycles test |
Citations (6)
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|---|---|---|---|---|
| WO2002042692A1 (en) * | 2000-06-09 | 2002-05-30 | Qualmark Corporation | Air circulation system for a chamber |
| CN201034899Y (en) * | 2007-03-27 | 2008-03-12 | 顾韻 | High accelerating temperature changing test box |
| CN202182852U (en) * | 2011-07-15 | 2012-04-04 | 兰州大学 | Mechanical property test system for superconducting material in 77K environment |
| CN202238073U (en) * | 2011-09-26 | 2012-05-30 | 广州威德玛环境仪器有限公司 | Nitrogen-saving low temperature test box |
| CN102614944A (en) * | 2012-02-27 | 2012-08-01 | 华中科技大学 | Multifunctional environmental test box and environmental test method and use thereof |
| TWM512925U (en) * | 2015-09-08 | 2015-12-01 | Xin-Hao Cai | Front-buckle vest underwear |
-
2017
- 2017-07-06 CN CN201710545868.3A patent/CN107297227A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002042692A1 (en) * | 2000-06-09 | 2002-05-30 | Qualmark Corporation | Air circulation system for a chamber |
| CN201034899Y (en) * | 2007-03-27 | 2008-03-12 | 顾韻 | High accelerating temperature changing test box |
| CN202182852U (en) * | 2011-07-15 | 2012-04-04 | 兰州大学 | Mechanical property test system for superconducting material in 77K environment |
| CN202238073U (en) * | 2011-09-26 | 2012-05-30 | 广州威德玛环境仪器有限公司 | Nitrogen-saving low temperature test box |
| CN102614944A (en) * | 2012-02-27 | 2012-08-01 | 华中科技大学 | Multifunctional environmental test box and environmental test method and use thereof |
| TWM512925U (en) * | 2015-09-08 | 2015-12-01 | Xin-Hao Cai | Front-buckle vest underwear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108217913A (en) * | 2018-02-05 | 2018-06-29 | 苏州思上环保科技有限公司 | A kind of sewage bactericidal unit |
| CN110404593A (en) * | 2019-07-15 | 2019-11-05 | 重庆哈丁环境试验技术股份有限公司 | High-strength insulation cabinet suitable for high low temperature cycles test |
| CN110404593B (en) * | 2019-07-15 | 2023-05-12 | 重庆哈丁环境试验技术股份有限公司 | High-strength heat-preserving box body suitable for high-low temperature alternating test |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171027 |