CN203247875U - Pressure balancing device for freezing climate chamber - Google Patents
Pressure balancing device for freezing climate chamber Download PDFInfo
- Publication number
- CN203247875U CN203247875U CN 201320212175 CN201320212175U CN203247875U CN 203247875 U CN203247875 U CN 203247875U CN 201320212175 CN201320212175 CN 201320212175 CN 201320212175 U CN201320212175 U CN 201320212175U CN 203247875 U CN203247875 U CN 203247875U
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- CN
- China
- Prior art keywords
- pressure
- freezing
- climate chamber
- window
- freezing weather
- 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 belongs to the technical field of freezing tests, and particularly relates to a pressure balancing device for a freezing climate chamber. The pressure balancing device for the freezing climate chamber comprises a large balancing window, small balancing windows, a driving motor, a control circuit and a freezing climate chamber panel, wherein the large balancing window is installed on the freezing climate chamber panel in an embedded mode, and can carry out translation on the freezing climate chamber panel, the small balancing windows are installed on the freezing climate chamber panel in an overturn and embedded mode, the driving motor drives the large balancing window to carry out translation through control of the control circuit, and the small balancing windows are opened and closed along with changes of the pressure difference. The pressure balancing device for the freezing climate chamber can rapidly achieve balance between the pressure in the freezing climate chamber and the pressure outside the freezing climate chamber, and has the advantages of being simple in structure, stable in performance, low in energy consumption, free of noise, free of pollution to the environment and the like.
Description
Technical field
The utility model belongs to the icing tests technical field, particularly relates to a kind of pressure equaliser for the freezing weather chamber.
Background technology
When the climatic chamber precooling, because test room's temperature reduces, cause test room's internal gas pressure to be lower than atmospheric pressure, need this moment to keep the indoor and outdoor air pressure balance from outdoor make-up gas; And when climatic chamber was tested, the spraying system maximum will spray into 30Nm
3The gas of/min (containing heating power source gas), as calculated, with the spraying of maximum tolerance after 20 minutes, air pressure in the test room can reach about 1.15atm, if untimely room pressure constantly increases with the gas discharge, may produce considerable influence to storehouse, freezing weather chamber plate and building, therefore, must the air in the test room be reduced pressure by certain means.
To sum up, in the situation that freezing weather chamber when work pressure changes, guarantee the safety of freezing weather chamber storehouse plate and building, must configuration one cover pressure equaliser, reach balance in order to the pressure that guarantees the freezing weather indoor and outdoor.
Summary of the invention
The purpose of this utility model is: design a kind of device for freezing weather chamber pressure balance.By opening the device with closed window for keeping pressure balance, in the process that the freezing weather chamber internal pressure changes, the balance inside and outside pressure differential of climatic chamber of freezing guarantees freezing weather chamber storehouse plate and building safety rapidly.
The technical solution of the utility model is:
A kind of pressure equaliser for the freezing weather chamber, this device comprises large window for keeping pressure balance, little window for keeping pressure balance, drive motors, control circuit and storehouse, freezing weather chamber plate, wherein, but large window for keeping pressure balance translation ground is inlayed and is installed on the plate of storehouse, freezing weather chamber, little window for keeping pressure balance is inlayed turningly and is installed on the plate of storehouse, freezing weather chamber, under control circuit control, drive motors drives large window for keeping pressure balance translation, and little window for keeping pressure balance changes open and close with pressure reduction.
The utility model has the advantages that:
The utility model can realize fast that the pressure that guarantees the freezing weather indoor and outdoor reaches balance, have simple in structure, stable performance, low power consuming does not produce the advantage of the environmental nonpollutions such as noise.
Description of drawings
Fig. 1 is the layout schematic diagram of freezing weather chamber pressure bascule.Among the figure: 1. large window for keeping pressure balance; 2. little window for keeping pressure balance; 3. drive motors; 4. storehouse, freezing weather chamber plate; 5. climatic chamber door of refrigerator; 6. observation port
The specific embodiment
The below is described in further details the utility model.
A kind of pressure equaliser for the freezing weather chamber, this device comprises large window for keeping pressure balance, little window for keeping pressure balance, drive motors, control circuit and storehouse, freezing weather chamber plate, wherein, but large window for keeping pressure balance translation ground is inlayed and is installed on the plate of storehouse, freezing weather chamber, little window for keeping pressure balance is inlayed turningly and is installed on the plate of storehouse, freezing weather chamber, under control circuit control, drive motors drives large window for keeping pressure balance translation, and little window for keeping pressure balance changes open and close with pressure reduction.
Large window for keeping pressure balance is of a size of 500mm * 500mm.
Little window for keeping pressure balance is of a size of 150mm * 150mm.The quantity of little window for keeping pressure balance is four, is contained in respectively the diverse location of storehouse, freezing weather chamber plate.
On the plate of storehouse, freezing weather chamber climatic chamber door of refrigerator and observation port are housed also.
The implementation step is as follows:
Force value according to freezing weather room pressure sensor records realizes the automatic control to internal pressure.Be higher or lower than atmospheric pressure 500Pa when the climatic chamber external and internal pressure is poor greater than 0.005atm() time, little window for keeping pressure balance is opened automatically, and climatic chamber is in communication with the outside, and carries out supercharging or release, guarantees that room pressure is stabilized in about 1atm; When pressure is got back to normal pressure value, autoshutdown; Automatically open again when pressure reaches next time.
Large window for keeping pressure balance is designed to manually opened, when room pressure is too high or too low, presses control button, opens window for keeping pressure balance by drive motors, makes the indoor-outdoor air convection current, the balance external and internal pressure.Large window for keeping pressure balance ventilation volume is larger, uses at the needs Fast-Balance or when regulating the climate interior temperature.
Claims (2)
1. pressure equaliser that is used for the freezing weather chamber, it is characterized in that, this device comprises large window for keeping pressure balance, little window for keeping pressure balance, drive motors, control circuit and storehouse, freezing weather chamber plate, wherein, but large window for keeping pressure balance translation ground is inlayed and is installed on the plate of storehouse, freezing weather chamber, and little window for keeping pressure balance is inlayed turningly and is installed on the plate of storehouse, freezing weather chamber, under control circuit control, drive motors drives large window for keeping pressure balance translation, and little window for keeping pressure balance changes open and close with pressure reduction.
2. a kind of pressure equaliser for the freezing weather chamber as claimed in claim 1 is characterized in that, on the plate of storehouse, described freezing weather chamber climatic chamber door of refrigerator and observation port is housed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212175 CN203247875U (en) | 2013-04-24 | 2013-04-24 | Pressure balancing device for freezing climate chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212175 CN203247875U (en) | 2013-04-24 | 2013-04-24 | Pressure balancing device for freezing climate chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203247875U true CN203247875U (en) | 2013-10-23 |
Family
ID=49374322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320212175 Expired - Fee Related CN203247875U (en) | 2013-04-24 | 2013-04-24 | Pressure balancing device for freezing climate chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203247875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733639A (en) * | 2018-12-11 | 2019-05-10 | 武汉航空仪表有限责任公司 | A kind of freezing weather room flow field rock-steady structure |
-
2013
- 2013-04-24 CN CN 201320212175 patent/CN203247875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733639A (en) * | 2018-12-11 | 2019-05-10 | 武汉航空仪表有限责任公司 | A kind of freezing weather room flow field rock-steady structure |
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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: 20131023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |