CN202606177U - Low-temperature test chamber - Google Patents
Low-temperature test chamber Download PDFInfo
- Publication number
- CN202606177U CN202606177U CN 201220143985 CN201220143985U CN202606177U CN 202606177 U CN202606177 U CN 202606177U CN 201220143985 CN201220143985 CN 201220143985 CN 201220143985 U CN201220143985 U CN 201220143985U CN 202606177 U CN202606177 U CN 202606177U
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- CN
- China
- Prior art keywords
- low
- temperature test
- test chamber
- dry ice
- casing
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a low-temperature test chamber, which comprises a chamber body with a heat-insulating layer and an upper cover, and is characterized in that the chamber body consists of an experimental chamber, a cooling conducting layer with an interlayer into which alcohol is put and the heat-insulating layer serving as an outer layer which are arranged sequentially from inside to outside; a dry ice disc is arranged on an upper layer in the chamber body; a plurality of holes are distributed in the dry ice disc; and the upper cover and the bottom of the chamber body are provided with a ventilating regulation hole with a regulating switch respectively. The low-temperature test chamber has the characteristics of high cooling speed, convenience and flexibility, the experimental cost can be saved greatly, the experimental time can be shortened, and the efficiency can be improved.
Description
Technical field
The utility model belongs to the test refrigeration plant, relates in particular to a kind of low-temperature test chamber.
Background technology
National standard has the environmental suitability requirement to different automobile products.Require the military use product can operate as normal at positive and negative 2 degree of subzero 41 degree of low temperature, set up the laboratory with traditional refrigeration modes (refrigerator principle), or rent the low temperature test chamber, cooling rate be slow, and time is long, the expense height, and condition restriction such as time, place are a lot.It is fast, convenient, flexible and shorten the low-temperature test chamber of experimental period that military products research and development department demands developing a kind of cooling velocity urgently.
The utility model content
The utility model is in order to overcome deficiency of the prior art; A kind of fast low-temperature test chamber of cooling velocity that has is provided, adopts dry ice cooling low-temperature test chamber to have fast, the convenient, flexible characteristics of cooling velocity, can practice thrift experimental expenses greatly; Shorten experimental period, raise the efficiency.
The utility model is for realizing above-mentioned purpose; Realize that through following technical scheme a kind of low-temperature test chamber comprises the casing and the loam cake that are provided with heat-insulation layer; It is characterized in that: said casing is made up of cooling conducting shell and the outer field heat-insulation layer of placing alcohol in the experiment chamber that from inside to outside sets gradually, the interlayer; Be provided with the dry ice charging tray in the said casing, be uniformly distributed with several holes on the said dry ice charging tray, said box cover and bottom are respectively equipped with the aeration regulation hole of band by-pass cock.
Cover on said and be provided with thermometer hole.
Said casing is processed square hexahedron by the sheet metal panel beating.
Beneficial effect: being specially adapted to military products research and development department has the department of environmental suitability requirement to use with middle-size and small-size to different automobile products.Have fast, the convenient, flexible characteristics of cooling velocity, can practice thrift experimental expenses greatly, shorten experimental period and raise the efficiency.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the stereogram of the utility model.
The specific embodiment
Below in conjunction with preferred embodiment; Details are as follows to the specific embodiment that provides according to the utility model: see accompanying drawing for details; A kind of low-temperature test chamber; Comprise the casing 1 and loam cake 2 that are provided with heat-insulation layer, said casing is made up of cooling conducting shell 4 and the outer field heat-insulation layer 5 of placing alcohol in the experiment chamber 3 that from inside to outside sets gradually, the interlayer, is provided with dry ice charging tray 6 on said casing is interior; Be uniformly distributed with several holes 7 on the said dry ice charging tray, said box cover and bottom are respectively equipped with the aeration regulation hole 8 of band by-pass cock.Cover on said and be provided with thermometer hole 9.Said casing is processed square hexahedron by the sheet metal panel beating.
Three chambers are arranged in the chamber from inside to outside, and skin is a heat-insulation layer, and it is the cooling conducting shell that the centre adds the interior alcohol of placing of layer, and (alcohol-alcohol is a kind of water white transparency, nonconducting liquid.Freezing point-117.3 ℃.Depress 78.2 ℃ of boiling points at a normal atmosphere.Can with water with any ratio miscible (promptly " dissolving each other ").Hygroscopicity is arranged.Can form azeotropic mixture with water, 78.15 ℃ of azeotropic points.) the inside be the experiment chamber.Dry ice (solid carbon dioxide (CO2), white are housed on the dry ice charging tray.Depress the meeting distillation at-78.5 ℃ with ambient air and become gas).
Operation principle: on the dry ice charging tray, place dry ice (carbon dioxide) according to the experiment situation, utilize the proportion of dry ice bigger than air, the descending principle of endothermic gasification reduces conducting shell alcohol temperature, and the back that is heated of dry ice is without liquefaction, and directly distillation.Dry ice is the solid-state of carbon dioxide, because the temperature of dry ice is very low, temperature is subzero 78.5 ℃, than great, hold cloud and operate in the running to the casing below, and the alcohol heat radiation, temperature reduces, and just can reach subzero 42 degree of low temperature in a short period of time.Positive and negative 2 degree of subzero 41 degree of army's low temperature environment temperature standard.At the bottom of chamber, the open and close in the aeration regulation hole that covers, scalable keeps the experimental temperature in the chamber.Through adjustment circulate up and down pore switching, make the experiment chamber, remain on the temperature (positive and negative 2 degree of army's standard 41 degree) of low temperature test
The above only is the preferred embodiment of the utility model, is not the structure of the utility model is done any pro forma restriction.Every technical spirit according to the utility model is to any simple modification, equivalent variations and modification that above embodiment did, all still belongs in the scope of technical scheme of the utility model.
Claims (3)
1. low-temperature test chamber; Comprise the casing and the loam cake that are provided with heat-insulation layer; It is characterized in that: said casing is made up of cooling conducting shell and the outer field heat-insulation layer of placing alcohol in the experiment chamber that from inside to outside sets gradually, the interlayer; Be provided with the dry ice charging tray in the said casing, be uniformly distributed with several holes on the said dry ice charging tray, said box cover and bottom are respectively equipped with the aeration regulation hole of band by-pass cock.
2. low-temperature test chamber according to claim 1 is characterized in that: cover on said and be provided with thermometer hole.
3. low-temperature test chamber according to claim 1 and 2 is characterized in that: said casing is processed square hexahedron by the sheet metal panel beating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143985 CN202606177U (en) | 2012-04-09 | 2012-04-09 | Low-temperature test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143985 CN202606177U (en) | 2012-04-09 | 2012-04-09 | Low-temperature test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606177U true CN202606177U (en) | 2012-12-19 |
Family
ID=47339910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220143985 Expired - Fee Related CN202606177U (en) | 2012-04-09 | 2012-04-09 | Low-temperature test chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202606177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033024A (en) * | 2015-03-17 | 2016-10-19 | 中国科学院寒区旱区环境与工程研究所 | Optical-instrument low temperature environment test box |
| CN107611788A (en) * | 2017-09-11 | 2018-01-19 | 江苏银佳企业集团有限公司 | One kind cooling insulating properties switch cubicle |
-
2012
- 2012-04-09 CN CN 201220143985 patent/CN202606177U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033024A (en) * | 2015-03-17 | 2016-10-19 | 中国科学院寒区旱区环境与工程研究所 | Optical-instrument low temperature environment test box |
| CN107611788A (en) * | 2017-09-11 | 2018-01-19 | 江苏银佳企业集团有限公司 | One kind cooling insulating properties switch cubicle |
| CN107611788B (en) * | 2017-09-11 | 2023-09-12 | 江苏银佳企业集团有限公司 | Cooling insulating switch cabinet |
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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: 20121219 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |