CN201302251Y - Fresh air conveying device - Google Patents
Fresh air conveying device Download PDFInfo
- Publication number
- CN201302251Y CN201302251Y CNU2008200592381U CN200820059238U CN201302251Y CN 201302251 Y CN201302251 Y CN 201302251Y CN U2008200592381 U CNU2008200592381 U CN U2008200592381U CN 200820059238 U CN200820059238 U CN 200820059238U CN 201302251 Y CN201302251 Y CN 201302251Y
- Authority
- CN
- China
- Prior art keywords
- air
- fresh air
- conveying device
- fresh
- blowpipe
- 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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- Respiratory Apparatuses And Protective Means (AREA)
- Ventilation (AREA)
Abstract
The utility model relates to a safety facility which operates in harmful gas environments and closed environments, in particular to a gas conveying device. A fresh air conveying device comprises a blower which is arranged at the fresh air position in the open air. The blower comprises an air-supplying main pipe and at least one air-supplying branch pipe. The entrance of the air-supplying main pipe is connected with the blower, and the exit at the other end is located at the position near a working zone. One end of the air-supplying branch pipe is connected with the air-supplying main pipe by a multi-pass connecting head. The fresh air conveying device has the characteristics that: the structure is simple and the manufacturing is convenient; under the premise of not affecting the requirements of the operation for the environment, the fresh air conveying device keeps the air fresh in operating zones, so as to ensure the safety of operating personnel and the operating efficiency.
Description
Technical field
The utility model relates to the safety devices of operation under pernicious gas environment and closed environment, relates in particular to air transporting arrangement.
Background technology
In manufacturing, construction and maintenance engineering field, running into through regular meeting need operation in small space (as welding, application), or operation under toxic gas environment such as coal gas.Usually in inside or the exit adopt air blast to dry outward to ventilate, the method has certain effect, but noise is big; Some operation has requirement (as gas shielded arc welding) to wind speed, can't adopt the method, can only adopt the method for frequent substitution, influences operating efficiency.
And operation under toxic gas environment such as coal gas, the operating personnel will wear air respiratorresuscitator, makes that operating personnel's action is constant, inefficiency.
Summary of the invention
The utility model is intended to solve the above-mentioned defective of prior art, and a kind of fresh air unit is provided.The utility model is simple in structure, and is easy to make, do not influencing under the prerequisite of operation to environment requirement, makes the operation area air keep pure and fresh, guaranteed operating personnel's safety and operating efficiency.
The utility model is achieved in that
A kind of fresh air unit, it comprises a blower fan that is arranged on open-air place with fresh air, it comprises:
One blast main, this blast main connection blower fan that enters the mouth, other end outlet is positioned near the position, working region;
At least one blowpipe, described branch vent connects described blast main with an end by a multi-pass connecting joint.
Described fresh air unit, described blowpipe are flexible pipe, and its tube wall is provided with some apertures.
Described fresh air unit, described multiple-pass joint is threeway, and described blowpipe two ends connect two joints of threeway respectively.
The utility model is simple in structure, and is easy to make, and evenly gas distribution air-supply does not influence operation, improves security protection, improves operating environment.Be applicable to the operation that improper ventilation, operating environment difference or operating condition are had relatively high expectations.
Description of drawings
Below, further specify the utility model in conjunction with the accompanying drawings:
Fig. 1 is the utility model schematic diagram;
The specific embodiment
As shown in Figure 1: a kind of fresh air unit, it comprises a blower fan 1 that is arranged on open-air place with fresh air, it comprises:
One blast main 2, these blast main's 2 inlets connect blower fan 1, and other end outlet is positioned near the position, working region,
At least one some blowpipe 4, described blowpipe 4 is a flexible pipe, and its tube wall is provided with some apertures, and it connects described blast main 2 with an end by a multi-pass connecting joint, and the other end leads to the working region.
And in an embodiment of the present utility model, described blowpipe 4 two ends connect 3 two joint (see figure 1)s of threeway respectively.Present embodiment is applicable to that the space is big, the ventilation circuit is long or the responsive operation of wind speed influence.
Claims (3)
1. fresh air unit, it comprises a blower fan that is arranged on open-air place with fresh air, it is characterized in that it comprises:
One blast main, this blast main connection blower fan that enters the mouth, other end outlet is positioned near the position, working region;
At least one blowpipe, described blowpipe connects described blast main with an end by a multi-pass connecting joint.
2. fresh air unit according to claim 1 is characterized in that, described blowpipe is a flexible pipe, and its tube wall is provided with some apertures.
3. belt conveyor banjo fixing butt jointing producing device according to claim 1 and 2 it is characterized in that described multiple-pass joint is threeway, and described blowpipe two ends connects two joints of threeway respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200592381U CN201302251Y (en) | 2008-05-30 | 2008-05-30 | Fresh air conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200592381U CN201302251Y (en) | 2008-05-30 | 2008-05-30 | Fresh air conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302251Y true CN201302251Y (en) | 2009-09-02 |
Family
ID=41085877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200592381U Expired - Fee Related CN201302251Y (en) | 2008-05-30 | 2008-05-30 | Fresh air conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201302251Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538122A (en) * | 2011-12-30 | 2012-07-04 | 张维中 | Ventilating device for pipelines and narrow spaces |
-
2008
- 2008-05-30 CN CNU2008200592381U patent/CN201302251Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538122A (en) * | 2011-12-30 | 2012-07-04 | 张维中 | Ventilating device for pipelines and narrow spaces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20120530 |