CN202238073U - Nitrogen-saving low temperature test box - Google Patents
Nitrogen-saving low temperature test box Download PDFInfo
- Publication number
- CN202238073U CN202238073U CN2011203637367U CN201120363736U CN202238073U CN 202238073 U CN202238073 U CN 202238073U CN 2011203637367 U CN2011203637367 U CN 2011203637367U CN 201120363736 U CN201120363736 U CN 201120363736U CN 202238073 U CN202238073 U CN 202238073U
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- temperature test
- test chamber
- nitrogen
- air
- liquid nitrogen
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Abstract
The utility model relates to the field of test equipment, in particular to a nitrogen-saving low temperature test box, which comprises a box body, a worktable board and a refrigeration device. The refrigeration device is a space inside the box body and used for achieving refrigeration effect. The nitrogen-saving low temperature test box comprises a liquid nitrogen spraying device and a mechanical refrigeration device. At the stage of constant temperature control inside the box body, a logic controller closes the liquid nitrogen spraying device and starts the mechanical refrigeration device. The nitrogen-saving low temperature test box achieves shock cooling control, simultaneously saves liquid nitrogen usage quantity and reduces production cost and environmental pollution.
Description
Technical field
The present invention relates to the experimental facilities field, relate in particular to a kind of joint nitrogen low-temperature test chamber.
Background technology
Behind enterprise's research and development new product,, guarantee the outgoing of product, must in chamber, expedite product wear out in order to find out the defective of product rapidly.Because of the projected life of some product generally all longer, the performance that can not test new product through the mode of natural aging.
The traditional experiment case possesses high low temperature alternation function through mechanically refrigerated method, receives trial product to be exposed to the performance of extreme climate with check.Like Chinese patent CN201744357 disclosed " high low temperature alternation damp heat test box ", mainly constitute by evaporimeter, condenser, refrigeration compressor, circulating fan, heat-insulation layer, capillary, copper pipe, liquid back pipe etc.
Mechanically refrigerated shortcoming is that refrigerating efficiency is low, is difficult to realize quenching.In the experiment, there is the scholar to propose to realize quenching abroad through the method for spraying liquid nitrogen.The efficient of liquid nitrogen absorbing and cooling temperature is very high, can realize quenching through spray liquid nitrogen extensively, but be difficult to realize the accurate control of predetermined temperature, more is difficult to realize thermostatic control, and the omnidistance cost of liquid nitrogen refrigerating that uses is very high.
The utility model content
To the problem that exists in the prior art, the purpose of the utility model is to provide a kind of joint nitrogen low-temperature test chamber, has realized quenching control, has practiced thrift the liquid nitrogen use amount simultaneously, reduces production costs and environmental pollution.
To achieve these goals, the utility model provides following technical scheme:
The utility model joint nitrogen low-temperature test chamber comprises casing, working plate, refrigerating plant.Said refrigerating plant is that refrigeration is realized in the space of box house, comprises a liquid nitrogen flusher and a mechanical refrigeration device; In the box house thermostatic control stage, logic controller is closed the liquid nitrogen flusher and is started mechanical refrigerating plant.
Around the working space of box house, be provided with air circulation duct, air is in the action of fan current downflow; Refrigerating plant is located at the refrigerating channel in the air circulation duct.
Preferably, also be provided with heating element in the air circulation duct, and be provided with refrigerating channel arranged side by side heat passage, refrigerating channel and heat that the switching damper through single-pole double throw switches between the passage.
Preferably, the air outlet of said air circulation duct is provided with the air-out damper, regulates the direction of air-out.
Preferably, the lower surface of said working plate is provided with the vibration pneumatic hammer.Use spring to be connected between said working plate and the casing, reduce working plate and vibrate effect casing.
The utility model joint nitrogen low-temperature test chamber has following beneficial effect:
1, comprises a liquid nitrogen flusher and a mechanical refrigeration device.Chamber when refrigeration start, startup liquid nitrogen flusher under the logic controller effect, fast cooling, even reach the effect of quenching.In the box house thermostatic control stage, logic controller is closed the liquid nitrogen flusher and is started mechanical refrigerating plant, practices thrift the use of liquid nitrogen, reduces production costs and environmental pollution, and helps realizing accuracy control over temperature.
2, refrigerating channel arranged side by side and heat passage, the switching damper through single-pole double throw switches, and can realize that extreme environment switches apace, finds to receive the defective of trial product.
Description of drawings
Fig. 1 is the structural representation of the utility model joint nitrogen low-temperature test chamber.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model technical scheme is further specified, is not regarded as restriction the utility model protection domain:
As shown in Figure 1, the utility model joint nitrogen low-temperature test chamber comprises casing 001, working plate 007, liquid nitrogen flusher 003, mechanical refrigeration device 004.In the box house thermostatic control stage, logic controller is closed liquid nitrogen flusher 003 and is started mechanical refrigerating plant 004.
Be provided with air circulation duct on every side at casing 001 inner working space 006, air is in the effect current downflow of fan 002 and fan 010; Refrigerating plant is located at the refrigerating channel in the air circulation duct.Also be provided with heating element 009 in the air circulation duct, and be provided with refrigerating channel arranged side by side heat passage, refrigerating channel and heat that the switching damper 011 through single-pole double throw switches between the passage.The air outlet of said air circulation duct is provided with air-out damper 012, regulates the direction of air-out.The lower surface of said working plate 007 is provided with the vibration pneumatic hammer.Use spring to be connected between said working plate 007 and the casing 001, reduce the effect that working plate 007 vibrates casing 001.
The utility model joint nitrogen low-temperature test chamber has been realized quenching control, has practiced thrift the liquid nitrogen use amount simultaneously, reduces production costs and environmental pollution.
Claims (6)
1. joint nitrogen low-temperature test chamber comprises casing, working plate, refrigerating plant, it is characterized in that: said refrigerating plant is that refrigeration is realized in the space of box house, comprises a liquid nitrogen flusher and a mechanical refrigeration device; In the box house thermostatic control stage, logic controller is closed the liquid nitrogen flusher and is started mechanical refrigerating plant.
2. joint nitrogen low-temperature test chamber as claimed in claim 1 is characterized in that: around the working space of box house, be provided with air circulation duct, air is in the action of fan current downflow; Refrigerating plant is located at the refrigerating channel in the air circulation duct.
3. joint nitrogen low-temperature test chamber as claimed in claim 2; It is characterized in that: also be provided with heating element in the air circulation duct; And be provided with refrigerating channel arranged side by side heat passage, refrigerating channel and heat that the switching damper through single-pole double throw switches between the passage.
4. joint nitrogen low-temperature test chamber as claimed in claim 2, it is characterized in that: the air outlet of said air circulation duct is provided with the air-out damper, regulates the direction of air-out.
5. joint nitrogen low-temperature test chamber as claimed in claim 1, it is characterized in that: the lower surface of said working plate is provided with the vibration pneumatic hammer.
6. joint nitrogen low-temperature test chamber as claimed in claim 5 is characterized in that: use spring to be connected between said working plate and the casing, reduce working plate and vibrate the effect to casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637367U CN202238073U (en) | 2011-09-26 | 2011-09-26 | Nitrogen-saving low temperature test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637367U CN202238073U (en) | 2011-09-26 | 2011-09-26 | Nitrogen-saving low temperature test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202238073U true CN202238073U (en) | 2012-05-30 |
Family
ID=46099378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203637367U Expired - Fee Related CN202238073U (en) | 2011-09-26 | 2011-09-26 | Nitrogen-saving low temperature test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202238073U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439993A (en) * | 2013-07-09 | 2013-12-11 | 广州国技试验仪器有限公司 | Test box with blower motor shared by heating channel and refrigerating channel |
| CN107297227A (en) * | 2017-07-06 | 2017-10-27 | 上海卫星装备研究所 | A kind of low temperature impact test box liquid nitrogen spraying device |
| CN113466286A (en) * | 2021-06-30 | 2021-10-01 | 中国科学院西北生态环境资源研究院 | Freeze-thaw test equipment for simulating concrete ultralow-temperature-large-temperature-difference freeze-thaw process |
-
2011
- 2011-09-26 CN CN2011203637367U patent/CN202238073U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439993A (en) * | 2013-07-09 | 2013-12-11 | 广州国技试验仪器有限公司 | Test box with blower motor shared by heating channel and refrigerating channel |
| CN107297227A (en) * | 2017-07-06 | 2017-10-27 | 上海卫星装备研究所 | A kind of low temperature impact test box liquid nitrogen spraying device |
| CN113466286A (en) * | 2021-06-30 | 2021-10-01 | 中国科学院西北生态环境资源研究院 | Freeze-thaw test equipment for simulating concrete ultralow-temperature-large-temperature-difference freeze-thaw process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140926 |
|
| EXPY | Termination of patent right or utility model |