CN203303964U - Frost-free-type low-temperature test chamber - Google Patents
Frost-free-type low-temperature test chamber Download PDFInfo
- Publication number
- CN203303964U CN203303964U CN2013203474320U CN201320347432U CN203303964U CN 203303964 U CN203303964 U CN 203303964U CN 2013203474320 U CN2013203474320 U CN 2013203474320U CN 201320347432 U CN201320347432 U CN 201320347432U CN 203303964 U CN203303964 U CN 203303964U
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- test chamber
- temperature test
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- stop valve
- gas stop
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Abstract
The utility model discloses a frost-free-type low-temperature test chamber. The frost-free-type low-temperature test chamber comprises a low-temperature test chamber body, an air dryer, a pressure flow rate controller, a cabin door induction switch, an air curtain, a controller, a gas stop valve and an air guide plate, wherein the air drier is connected with the pressure flow rate controller; the pressure flow rate controller and the low-temperature test chamber body are both connected with the gas stop valve; the gas stop valve and the cabin door induction switch are both connected with the controller; the gas stop valve is connected with the air curtain; the air curtain and the air guide plate are respectively positioned above and below the low-temperature test chamber body. The frost-free-type low-temperature test chamber provided by the utility model can guarantee that the frosting phenomenon cannot occur in a cabin in frequent door opening in a test process.
Description
Technical field
The utility model relates to a kind of frostless formula low-temperature test chamber, particularly relates to a kind of continuous operation that needs, and opens in the course of the work the low-temperature test chamber that hatch door picks and places subjects.
Background technology
At present, known low-temperature test chamber major part is not frequently opened hatch door in the sample process, in case in the time of need to frequently opening hatch door, just there will be the phenomenon that enters frosting in the inherent low temperature environment in cabin due to air contained water in environment.In cabin, not only affect the refrigerating efficiency of low-temperature test chamber after frosting, and may other devices in experimental cabin be exerted an influence.In order to get rid of the frosting impact, in case most of user takes excessively frosting, be that the arrestment running defrosts, so utilization rate of equipment and installations is forced to reduce, and may upset the rhythm of upstream or lower procedure again simultaneously.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of frostless formula low-temperature test chamber, when it can frequently open the door in process of the test, guarantees frost not occur in cabin.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of frostless formula low-temperature test chamber, it comprises the low-temperature test chamber body, air dryer, pressure and flow controller, the hatch door inductive switch, air curtain, controller, gas stop valve, wind deflector, air dryer is connected with pressure and flow controller, pressure and flow controller, the low-temperature test chamber body all is connected with gas stop valve, gas stop valve, the hatch door inductive switch all is connected with controller, gas stop valve is connected with air curtain, air curtain and wind deflector lay respectively at the above and below of low-temperature test chamber body.
Positive progressive effect of the present utility model is: the utility model can be realized the function of low-temperature test chamber frost-free in the low-temperature test process, improves the utilization rate of low-temperature test chamber, reduces the rhythm interference of low-temperature test chamber to the upstream and downstream link.
The accompanying drawing explanation
Fig. 1 is the structural representation of the frostless formula low-temperature test chamber of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, provide the utility model preferred embodiment, to describe the technical solution of the utility model in detail.
As shown in Figure 1, the frostless formula low-temperature test chamber of the utility model comprises low-temperature test chamber body 1, air dryer 6, pressure and flow controller 5, hatch door inductive switch 2, air curtain 3, controller 7, gas stop valve 4, wind deflector 8, air dryer 6 is connected with pressure and flow controller 5, pressure and flow controller 5, low-temperature test chamber body 1 all are connected with gas stop valve 4, gas stop valve 4, hatch door inductive switch 2 all are connected with controller 7, gas stop valve 4 is connected with air curtain 3, and air curtain 3 and wind deflector 8 lay respectively at the above and below of low-temperature test chamber body 1.Low-temperature test chamber body 1, air dryer 6, pressure and flow controller 5, hatch door inductive switch 3, controller 7, gas stop valve 4, all be to have the element that can buy on market now.
Compressed air is after the air dryer drying, and its dew point is lower than the temperature in low-temperature test chamber, so these air through super-dry can not produce frost after entering low-temperature test chamber.When the test hatch door was opened, air curtain and wind deflector avoided extraneous air contained water to enter frosting in experimental cabin.Pressure and flow controller regulates respectively by regulating pressure and restriction size the air mass flow that enters test cabin and air curtain.Controller is controlled the switch of gas stop valve according to the hatch door state.The hatch door inductive switch is used to controller that the door-down switch status signal is provided, and while making hatch door close, only opens towards the gas stop valve in experimental cabin.During frostless formula low-temperature test chamber operation described in the utility model, when the hatch door inductive switch detects the test hatch door while closing, controller cuts out and is connected to air curtain gas stop valve before to save dry air, open simultaneously towards the gas stop valve in experimental cabin, keep micro-dry air to enter continuously experimental cabin, make the pressure in experimental cabin be slightly larger than chamber environmental pressure on every side, make the gas of extraneous high-moisture can't enter in cabin, the dry air of trace enters and disturbs also controlled to the control of chamber temperature simultaneously; When the hatch door inductive switch is sensed the test hatch door while opening, controller is opened and is connected to the front gas stop valve of air curtain, now enough dry airs enter air curtain, at the uncovered vertical air curtain in one cover butter cabin of the uncovered front formation of experimental cabin, air-flow spreads towards the direction away from experimental cabin after arriving wind deflector, the exchange that the vertical air curtain in this road can reduce the inside and outside gas of experimental cabin prevents that the air that the external world enters from bringing frost, the big ups and downs of temperature in the experimental cabin that inside and outside effectively reducing again, convection current causes.The utility model can be realized the function of low-temperature test chamber frost-free in the low-temperature test process, improves the utilization rate of low-temperature test chamber, reduces the rhythm interference of low-temperature test chamber to the upstream and downstream link.
Those skilled in the art can carry out various remodeling and change to the utility model.Therefore, the utility model has covered various remodeling and the change in the scope that falls into appending claims and equivalent thereof.
Claims (1)
1. frostless formula low-temperature test chamber, it is characterized in that, it comprises low-temperature test chamber body, air dryer, pressure and flow controller, hatch door inductive switch, air curtain, controller, gas stop valve, wind deflector, air dryer is connected with pressure and flow controller, pressure and flow controller, low-temperature test chamber body all are connected with gas stop valve, gas stop valve, hatch door inductive switch all are connected with controller, gas stop valve is connected with air curtain, and air curtain and wind deflector lay respectively at the above and below of low-temperature test chamber body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203474320U CN203303964U (en) | 2013-06-18 | 2013-06-18 | Frost-free-type low-temperature test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203474320U CN203303964U (en) | 2013-06-18 | 2013-06-18 | Frost-free-type low-temperature test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203303964U true CN203303964U (en) | 2013-11-27 |
Family
ID=49610200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203474320U Expired - Fee Related CN203303964U (en) | 2013-06-18 | 2013-06-18 | Frost-free-type low-temperature test chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203303964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272655A (en) * | 2013-06-18 | 2013-09-04 | 上海迦倍机电科技有限公司 | Frostless low temperature test chamber |
| CN112273887A (en) * | 2020-10-28 | 2021-01-29 | 潍坊工程职业学院 | Cabinet is stored to air inner loop protection formula archives |
-
2013
- 2013-06-18 CN CN2013203474320U patent/CN203303964U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272655A (en) * | 2013-06-18 | 2013-09-04 | 上海迦倍机电科技有限公司 | Frostless low temperature test chamber |
| CN112273887A (en) * | 2020-10-28 | 2021-01-29 | 潍坊工程职业学院 | Cabinet is stored to air inner loop protection formula archives |
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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: 20131127 Termination date: 20170618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |