CN2157444Y - Circulation air curtain device - Google Patents
Circulation air curtain device Download PDFInfo
- Publication number
- CN2157444Y CN2157444Y CN 93202006 CN93202006U CN2157444Y CN 2157444 Y CN2157444 Y CN 2157444Y CN 93202006 CN93202006 CN 93202006 CN 93202006 U CN93202006 U CN 93202006U CN 2157444 Y CN2157444 Y CN 2157444Y
- Authority
- CN
- China
- Prior art keywords
- air curtain
- curtain device
- air
- utility
- blower fan
- 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
Links
Abstract
The utility model relates to a circulation air curtain device, which is arranged at both sides of a passage between hot and cold spaces to block heat change. The utility model is composed of an air inlet and an air outlet pipes and at least one blower fan which is connected in series between the air inlet and the air outlet pipes, and the opposite sides of the air inlet and the air outlet pipe are provided with vent holes or slits. The utility model overcomes the defect that the air curtain device in the prior art only blows from top to bottom and does not draw, so the air curtain device can not blow to the bottom.
Description
The utility model belongs to the F24F group in International Classification of Patents, relate to the application of air stream as screen.
Exist under the frequent prerequisite of turnover at heat space and cold space,, adopt air curtain apparatus usually in order to reduce heat exchange.Present air curtain apparatus is made up of blower fan and airduct.The slit that air stream is axially opened system from the wind pipe wall blows out, thereby forms air curtain.For freezer or commercial building, it is loaded on the top of door, blows from top to bottom; For the horizontal dresser in supermarket, air curtain then is arranged in the surface layer of cabinet.This air curtain apparatus, fairly simple.But because door is tall and big in gate-width, light blows and does not inhale, thus air curtain also not " lock " just spread disappearance on earth, for the about 50 ℃ freezer of the temperature difference, particularly evident.
The purpose of this utility model provides a kind of circulating air curtain device, and it can more effectively form air curtain than prior art, even reaches the degree of " wind film ", thereby reduces " running cold " preferably.
Scheme disclosed herein is inventor 10 years of researches results:
At least one typhoon machine places between discharge pipe and the blast pipe, is shaped on air vent or slit on the said airduct, and is installed on the left and right sides of hot and cold spatial channel in opposite directions.
According to the air curtain apparatus that such scheme is made, not only having to blow has suction, and distance less (gate-width is high less than door), therefore can effectively form air curtain (even wind film), reduces to have reduced " running cold " preferably.
Accompanying drawing is two typhoon machines to be arranged in the utility model and be loaded on an interior embodiment schematic diagram of cold-storage door.
Blast pipe ［ 1 ］ and discharge pipe ［ 6 ］ separate from the and arranged on left and right sides of passage (door) ［ 2 ］, be shaped on air vent or slit on its relative tube wall, a blower fan ［ 3 ］ of forward arranging respectively is equipped with at the two ends of circulation pipe ［ 4 ］, and links to each other with said in/out air tube ［ 1,6 ］ by bend pipe.By terrace ［ 7 ］ one ends end socket is arranged into and out of airduct ［ 1,6 ］.After blower fan ［ 3 ］ starts,, form air and flow back to the road by air curtain.
In order to prevent blower fan ［ 3 ］ frosting, should install heating ［ 5 ］ and long-term energising thereon additional.The lubricant of blower fan ［ 3 ］ should be used low temperature lubricant instead.
Claims (3)
1, a kind ofly is contained in the circulating air curtain device on the passage between heat space and the cold space, form by blower fan [3] and airduct, it is characterized in that said airduct is divided into blast pipe [1] and discharge pipe [6] and is positioned at the and arranged on left and right sides of passage [2], is in series with at least one typhoon machine [3] between blast pipe [1] and the discharge pipe [6].
2, circulating air curtain device as claimed in claim 1 is characterised in that on airduct ［ 1,6 ］ opposite sides tube wall to be equipped with air vent or slit.
3, circulating air curtain device as claimed in claim 1 or 2 is characterized in that said blower fan ［ 3 ］ is upward with heating ［ 5 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202006 CN2157444Y (en) | 1993-01-18 | 1993-01-18 | Circulation air curtain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202006 CN2157444Y (en) | 1993-01-18 | 1993-01-18 | Circulation air curtain device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157444Y true CN2157444Y (en) | 1994-02-23 |
Family
ID=33786314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93202006 Expired - Fee Related CN2157444Y (en) | 1993-01-18 | 1993-01-18 | Circulation air curtain device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157444Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914022A (en) * | 2012-09-27 | 2013-02-06 | 北京国科世纪激光技术有限公司 | Gas curtain device for adjustment of side-opening laser system and environment isolator |
| CN106765853A (en) * | 2016-12-24 | 2017-05-31 | 信宜市现代中兴门业有限公司 | A kind of air curtain doorframe |
| CN110160201A (en) * | 2019-06-14 | 2019-08-23 | 重庆大学 | A kind of blowing and drawing type circulation air curtain system |
-
1993
- 1993-01-18 CN CN 93202006 patent/CN2157444Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914022A (en) * | 2012-09-27 | 2013-02-06 | 北京国科世纪激光技术有限公司 | Gas curtain device for adjustment of side-opening laser system and environment isolator |
| CN102914022B (en) * | 2012-09-27 | 2015-05-27 | 北京国科世纪激光技术有限公司 | Gas curtain device for adjustment of side-opening laser system and environment isolator |
| CN106765853A (en) * | 2016-12-24 | 2017-05-31 | 信宜市现代中兴门业有限公司 | A kind of air curtain doorframe |
| CN110160201A (en) * | 2019-06-14 | 2019-08-23 | 重庆大学 | A kind of blowing and drawing type circulation air curtain system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |