CN206469421U - A kind of self-priming outdoor exhaust outlet - Google Patents
A kind of self-priming outdoor exhaust outlet Download PDFInfo
- Publication number
- CN206469421U CN206469421U CN201720107749.5U CN201720107749U CN206469421U CN 206469421 U CN206469421 U CN 206469421U CN 201720107749 U CN201720107749 U CN 201720107749U CN 206469421 U CN206469421 U CN 206469421U
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- China
- Prior art keywords
- fan housing
- exhaust duct
- self
- exhaust outlet
- priming
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Abstract
The utility model discloses a kind of self-priming outdoor exhaust outlet, including the exhaust duct being vertically installed at the top of workshop or factory building, fan housing under the top of described exhaust duct and contour being provided with of exhaust duct, the top of exhaust duct is provided with upper fan housing by support frame, lower fan housing is big end down a platform shape or umbrella shape, and the bottom of upper fan housing is into small, upper big platform shape or umbrella shape under one；The diameter of described upper fan housing is more than the diameter of lower fan housing；The top of described upper fan housing is into big end down a platform shape or umbrella shape；Described self-priming outdoor exhaust outlet line centered on the axial line of exhaust duct is symmetrical arranged；Described support frame is made up of several rod members, and rod member one end is fixed on fan housing, the other end and is fixed on edge on the top of exhaust duct；The beneficial effects of the utility model：Practicality, production cost is low, and cost is low, is suitable for any wind direction and uses, reliable operation prevents reverse flowing of air flows, it is not necessary to machine power mechanism, saves the energy.
Description
Technical field
The utility model is related to a kind of outdoor exhaust outlet, more particularly to a kind of self-priming outdoor exhaust outlet.
Background technology
, mostly need to be using overall to make the air quality in place (factory building, workshop etc.) space reach relevant criterion requirement
The device of ventilation, when place internal memory is in thermal source or pernicious gas, exhaust outlet is generally disposed at the top of building.
There is following defect in current exhaust outlet：1. when outdoor wind speed is higher, interference can be produced to air draft, or even fall
Fill.Although being rotated 2. having at present using Wind power propelling attic fan, the device of room air is aspirated, because employing mechanical knot
Structure, has that cost is high, flimsy shortcoming.
Utility model content
Technical problem to be solved in the utility model is that there is provided the self-priming outdoor row of one kind in view of the shortcomings of the prior art
Air port.
To achieve these goals, the measure that the utility model is taken：
A kind of self-priming outdoor exhaust outlet, including it is vertically installed at the exhaust duct at the top of workshop or factory building, described air draft
Fan housing under the top of pipe and contour being provided with of exhaust duct, the top of exhaust duct is provided with upper fan housing, lower fan housing by support frame
For big end down a platform shape or umbrella shape, the bottom of upper fan housing is into small, upper big platform shape or umbrella shape under one；
The diameter of described upper fan housing is more than the diameter of lower fan housing；
The top of described upper fan housing is into big end down a platform shape or umbrella shape；
Described self-priming outdoor exhaust outlet line centered on the axial line of exhaust duct is symmetrical arranged；
Described support frame is made up of several rod members, and rod member one end is fixed on fan housing, the other end and is fixed on exhaust duct
Edge on top.
The beneficial effects of the utility model：Practicality, production cost is low, and cost is low, is suitable for any wind direction and uses, work can
Lean on, prevent reverse flowing of air flows, it is not necessary to machine power mechanism, save the energy.
Brief description of the drawings
Fig. 1, planar structure schematic diagram of the present utility model.
Embodiment
A kind of self-priming outdoor exhaust outlet, including it is vertically installed at the exhaust duct 2 at workshop or the top of factory building 1, described row
Fan housing 3 under the top of airduct 2 and contour being provided with of exhaust duct 2, the top of exhaust duct 2 is provided with upper fan housing by support frame 5
4, lower fan housing 3 is big end down a platform shape or umbrella shape, and the bottom of upper fan housing 4 is into small, upper big platform shape or umbrella under one
Shape.
The diameter of described upper fan housing 4 is more than the diameter of lower fan housing 3.Prevent rainwater from entering workshop or factory by exhaust duct 2
In room 1.
The top of described upper fan housing 4 is into big end down a platform shape or umbrella shape.
Described self-priming outdoor exhaust outlet line centered on the axial line 6 of exhaust duct 2 is symmetrical arranged.
Described support frame 5 is made up of several rod members, and rod member one end is fixed on fan housing 4, the other end and is fixed on exhaust duct 2
Top on edge.
When outdoor airflow is flowed through between upper fan housing 4 and lower fan housing 3, being gradually reduced with passage first, air-flow experience
One accelerator, in the top of exhaust duct 2, air velocity reaches maximum, and pressure is minimized, less than local atmospheric pressure, to car
Between or factory building 1 in air produce swabbing action, air-flow is behind the top of exhaust duct 2, because flow area expands, workshop or factory building
The mixture velocity of 1 inner air and outer air declines, and pressure rise is discharged into air.
The utility model is symmetrical structure, so no matter how wind direction changes, as long as wind speed is stable, you can produce stabilization
Suction force, alternative ventilating fan can also be used cooperatively with blower fan.The energy is saved.
Claims (5)
1. a kind of self-priming outdoor exhaust outlet, including it is vertically installed at the exhaust duct (2) at the top of workshop or factory building (1), its feature
It is：Fan housing (3) under the top of described exhaust duct (2) and contour being provided with of exhaust duct (2), the top of exhaust duct (2) leads to
Cross support frame (5) and fan housing (4) is installed, under lower fan housing (3) is big end down a platform shape or umbrella shape, upper fan housing (4)
Portion is into small, upper big platform shape or umbrella shape under one.
2. a kind of self-priming outdoor exhaust outlet according to claim 1, it is characterised in that：Described upper fan housing (4) it is straight
Footpath is more than the diameter of lower fan housing (3).
3. a kind of self-priming outdoor exhaust outlet according to claim 1 or 2, it is characterised in that：Described upper fan housing (4)
Top is into big end down a platform shape or umbrella shape.
4. a kind of self-priming outdoor exhaust outlet according to claim 3, it is characterised in that：Described self-priming outdoor air draft
Mouth line centered on the axial line (6) of exhaust duct (2) is symmetrical arranged.
5. a kind of self-priming outdoor exhaust outlet according to claim 4, it is characterised in that：Described support frame (5) is by counting
Root rod member is constituted, and rod member one end is fixed on fan housing (4), the other end and is fixed on edge on the top of exhaust duct (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107749.5U CN206469421U (en) | 2017-01-22 | 2017-01-22 | A kind of self-priming outdoor exhaust outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107749.5U CN206469421U (en) | 2017-01-22 | 2017-01-22 | A kind of self-priming outdoor exhaust outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206469421U true CN206469421U (en) | 2017-09-05 |
Family
ID=59703234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720107749.5U Active CN206469421U (en) | 2017-01-22 | 2017-01-22 | A kind of self-priming outdoor exhaust outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206469421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720941A (en) * | 2020-06-16 | 2020-09-29 | 无锡踏达机电科技有限公司 | Indoor ventilation governing system for green building |
-
2017
- 2017-01-22 CN CN201720107749.5U patent/CN206469421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720941A (en) * | 2020-06-16 | 2020-09-29 | 无锡踏达机电科技有限公司 | Indoor ventilation governing system for green building |
| CN111720941B (en) * | 2020-06-16 | 2021-01-26 | 金恪建筑装饰工程有限公司 | Indoor ventilation governing system for green building |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |