CN206504435U - A kind of powerless ventilation device - Google Patents
A kind of powerless ventilation device Download PDFInfo
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- CN206504435U CN206504435U CN201621413865.1U CN201621413865U CN206504435U CN 206504435 U CN206504435 U CN 206504435U CN 201621413865 U CN201621413865 U CN 201621413865U CN 206504435 U CN206504435 U CN 206504435U
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- ventilation device
- unpowered
- unpowered ventilation
- ventilation
- central shaft
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Abstract
The utility model discloses a kind of powerless ventilation device, including Unpowered ventilation device and leaf fan, the Unpowered ventilation utensil has a central shaft；The leaf fan is arranged in the Unpowered ventilation device air inlet, and is fixedly connected with central shaft, is linked so as to realize with the Unpowered ventilation device.The utility model is not only cheap, simple installation, and work operating only needs natural wind and indoor/outdoor temperature-difference, without consuming electric energy and other energy；And ventilation can improve 30% relative to traditional Unpowered ventilation device, can be used for large-scale ventilation and the smoke evacuation of fire early stage.
Description
Technical field
The utility model is related to a kind of compound ventilation air-changing device, more particularly to a kind of powerless ventilation device.
Background technology
Unpowered ventilation device is also known as natural ventilator, is the turbine rotation that blower fan is promoted using the natural custom of nature,
And using the principle of indoor and outdoor air convection current, the air flow of any parallel direction accelerates and be changed into from bottom to top to hang down
Straight air flow, so as to be excluded room air using centrifugal force and underbalance effect.Natural ventilator is cheap, installation is simple
Just, construction maintenance cost is low, work is convenient does not consume resource.In west, American-European countries is all the fashion already, existing decades
History, at home, with a large amount of appearances of steel building, installs and uses Unpowered ventilation device, also increasing day by day, it without
Electricity, it is noiseless, it can for a long time operate, exclude indoor hot gas, moisture and peculiar smell.General Unpowered ventilation device uses arc fan blade shape
The impeller of globulate, because the U.S. is in authority's research in the field, is tied such as 32 blades of optimum air dynamics Design
By making standardization of the spherical designs into acquiescence, later research and change be at most also by two tie points above and below blade not
In same vertical line, form wavy, impeller is rotated under lower wind-force.But, the gravity-flow ventilation used at present
It is not high that device still has running efficiency, is largely served only for middle-size and small-size ventilation place, due to the too small nothing of exhaust smoke level when occurring fire
Method reaches quick smoke evacuation, it is impossible to suitable for the smoke evacuation and the ventilation in large-scale place under fire conditions.
Utility model content
The purpose of this utility model is to provide a kind of running efficiency high powerless ventilation device, and the ventilation unit can be with
For large-scale ventilation and the smoke evacuation of fire early stage.
In order to solve the above technical problems, powerless ventilation device provided by the utility model, including Unpowered ventilation device
With leaf fan, the Unpowered ventilation utensil has a central shaft；The leaf fan is arranged in the Unpowered ventilation device air inlet, and
It is fixedly connected, is linked so as to realize with the Unpowered ventilation device with the central shaft.
The utility model is not only cheap, simple installation, and work operating only needs natural wind and indoor/outdoor temperature-difference, without disappearing
Consuming electric power and other energy；And ventilation can improve 30% relative to traditional Unpowered ventilation device, it can be used for large-scale logical
The smoke evacuation of wind and fire early stage.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is profile of the present utility model.
Embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments.
As Figure 1-Figure 2, powerless ventilation device provided by the utility model, including Unpowered ventilation device 1 and leaf
Fan 2, the Unpowered ventilation device 1 has a central shaft 11, and the central shaft 11 is fixed on the inside of Unpowered ventilation device 1 and propped up
In frame；The leaf fan 2 is arranged in the Unpowered ventilation device air inlet 12, and is fixedly connected with the central shaft 11, flabellum
Size is adapted to the ventilator air inlet 12, it is ensured that the blade of the flabellum 2 scrapes the wall less than Unpowered ventilation device, described
Central shaft 11 and the leaf fan 2 fixed form fixed using the mutually embedding blending bolt of screw thread so that realize with it is described unpowered
Ventilator 1 links.
As shown in figure 1, being tested according to fan blade quantity, it can be deduced that the number of blade increases to 6 by 3, blower press and dynamic pressure
It is significantly increased, and when blade increases to 9, dynamic pressure increases very little, when increasing to 12, total head and dynamic pressure all reduce, and the number of blade is got over
It is many, although flow is bigger, also more strength, but its deadweight and frictional force are bigger, it is necessary to bigger driven at low speed power, therefore need
Bigger fan shaft power, in summary some considers, and the device power resources are in Unpowered ventilation device self power, it is impossible to
There is provided the very big fan shaft power event leaf fan 2 selects six flabellums the most reasonable.
Compared with existing Unpowered ventilation device, the present apparatus is fanned by adding leaf in Unpowered ventilation device inlet port, is led to
The linkage for crossing leaf fan and Unpowered ventilation device is acted on, the negative pressure for making the formation of Unpowered ventilation device air inlet end regions bigger, so as to increase
Plus ventilation, not only it can be also used for the smoke evacuation of fire early stage for large-scale ventilation.
Claims (1)
1. a kind of powerless ventilation device, it is characterised in that：It is described unpowered logical including Unpowered ventilation device (1) and leaf fan (2)
Wind device (1) has a central shaft (11)；Leaf fan (2) is arranged in the Unpowered ventilation device air inlet (12), and with institute
State central shaft (11) to be fixedly connected, linked so as to realize with the Unpowered ventilation device (1), the leaf fan (2) has six fans
Leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621413865.1U CN206504435U (en) | 2016-12-22 | 2016-12-22 | A kind of powerless ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621413865.1U CN206504435U (en) | 2016-12-22 | 2016-12-22 | A kind of powerless ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504435U true CN206504435U (en) | 2017-09-19 |
Family
ID=59844121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621413865.1U Active CN206504435U (en) | 2016-12-22 | 2016-12-22 | A kind of powerless ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206504435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110724A (en) * | 2017-12-28 | 2018-06-01 | 温州新马亚电器有限公司 | A kind of cable branch box for being conducive to air exchange |
| CN114811791A (en) * | 2022-03-22 | 2022-07-29 | 安徽理工大学 | Smoke exhaust device for fire engineering and using method thereof |
-
2016
- 2016-12-22 CN CN201621413865.1U patent/CN206504435U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110724A (en) * | 2017-12-28 | 2018-06-01 | 温州新马亚电器有限公司 | A kind of cable branch box for being conducive to air exchange |
| CN108110724B (en) * | 2017-12-28 | 2020-04-07 | 乐清市双龙电器加工厂 | Cable branch box beneficial to air exchange |
| CN114811791A (en) * | 2022-03-22 | 2022-07-29 | 安徽理工大学 | Smoke exhaust device for fire engineering and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200907 Address after: 439 Huancheng South Road, Kunming, Yunnan Co-patentee after: CENTRAL SOUTH University Patentee after: YUNNAN MAZHAO EXPRESSWAY CONSTRUCTION HEADQUARTERS Address before: 410075 School of civil engineering, Central South University, 68 South Shaoshan Road, Tianxin District, Hunan, Changsha Patentee before: CENTRAL SOUTH University |
|
| TR01 | Transfer of patent right |