CN207395095U - A kind of fan outlet structure for being used to prevent gas backstreaming - Google Patents
A kind of fan outlet structure for being used to prevent gas backstreaming Download PDFInfo
- Publication number
- CN207395095U CN207395095U CN201721202931.5U CN201721202931U CN207395095U CN 207395095 U CN207395095 U CN 207395095U CN 201721202931 U CN201721202931 U CN 201721202931U CN 207395095 U CN207395095 U CN 207395095U
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- Prior art keywords
- horizontal pipe
- wind shield
- electromagnet
- shaft
- horizontal
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000005284 excitation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Wind Motors (AREA)
Abstract
The utility model is related to be used to prevent the fan outlet structure of gas backstreaming, including horizontal pipe, horizontal pipe one end is air inlet, the other end is air outlet, further include the wind shield being arranged on inside horizontal pipe, the shape size of wind shield matches with horizontal pipe, and the shaft axial turning of the horizontal high-order one side of inner wall by being arranged on the nearly middle part of horizontal pipe, the horizontal affixed positive stop strip in low level one side of inner wall at the nearly middle part of horizontal pipe, positive stop strip is oppositely arranged with shaft, electromagnet is set on inner-walls of duct, and iron plate is set in the corresponding position of wind shield, electromagnet is connected by circuit with the power supply of wind turbine.The utility model is cooperated using electromagnet and wind shield, and in fan operation, exhaust duct is in complete open state, and when fan parking or power-off, the automatic loss of excitation of electromagnet, wind shield by gravity falls and closes exhaust duct automatically.The utility model is simple in structure, easy to operate, on exhaust air rate without influence during fan operation.
Description
Technical field
The utility model is related to exhaust equipment technical fields, are specially a kind of fan outlet for being used to prevent gas backstreaming
Structure.
Background technology
Production enterprise in many fields, meeting large quantity of exhaust gas, these exhaust gas need to discharge, and some manufacturing enterprises,
Little particle can be generated in workshop to diffuse in the air, when density reaches a certain concentration, running into open fire will set off an explosion, these enterprises
Industry all carries out the exchange of air using exhaust pipe, and what is contacted with the external world is exactly air outlet, due to wind turbine during the work time, gas
It conveys under the effect of the pressure, when wind turbine is powered off or shut down, the pressure at fan outlet is more than the pressure in wind turbine
Power so that backflow phenomenon occurs in the air-flow in exit, and the gas of reflux can cause some potential safety problems, such as reflux gas meeting
Cause the reversed autobiography of fan blade, a degree of damage is caused to wind turbine.
Chinese patent CN 206131306U disclose a kind of air outlet structure for preventing gas backstreaming, including horizontal pipe,
Vertical pipeline, head cover, installing plate, cover board and axis pin, the vertical pipeline are fixed in horizontal pipe end, the top vertically
Lid is fixed in vertical pipeline top, and the installing plate is fixed in horizontal pipe rear portion, and circular hole is uniformly provided on installing plate, institute
The cover board top stated is connected by axis pin with installation postlaminar part, and the circular hole of cover board covering installing plate, and the cover board lower part is consolidated
Lead is connected to, the vertical pipeline bottom sets having heaters, and the cover board is made of lightweight high resistant material.The practicality is new
Type can prevent wind turbine shut down after gas backstreaming, but due to setting fixed installing plate in the duct, then on a mounting board
Perforate, air output are limited, and limit the use scope of wind turbine, and each circular hole will be installed complex corresponding to a cover board.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of for preventing the fan outlet knot of gas backstreaming
Structure, so as to overcome the above-mentioned drawbacks in the prior art.
In order to solve the above technical problems, the utility model is used to prevent the fan outlet structure of gas backstreaming, by with
Lower technical solution is realized：
Including horizontal pipe, described horizontal pipe one end is air inlet, and the other end is air outlet, is further included described in being arranged on
Wind shield inside horizontal pipe, the shape size of the wind shield match with the horizontal pipe, and pass through and be arranged on institute
State the shaft axial turning of the horizontal high-order one side of inner wall at the nearly middle part of horizontal pipe, the inner wall water at the nearly middle part of the horizontal pipe
The flat affixed positive stop strip in low level one side, the positive stop strip are oppositely arranged with the shaft, axially may be reversed in the wind shield
Electromagnet on inner-walls of duct is set, and iron plate is set in the corresponding position of the wind shield, the electromagnet passes through circuit and institute
The power supply for stating wind turbine is connected.
As preferred technical solution, the shaft is horizontally disposed with.
As preferred technical solution, Air Filter is set at the air outlet of the horizontal pipe.
The utility model additionally provides another fan outlet structure for being used to prevent gas backstreaming, including VERTICAL TUBE
Road, the vertical pipeline lower end are air inlet, and upper end is air outlet, further includes and is arranged on keeping out the wind inside the vertical pipeline
Plate, the shape size of the wind shield match with the vertical pipeline, and by being arranged in the nearly middle part of the vertical pipeline
Shaft axial turning on wall, the affixed positive stop strip on the vertical pipeline inner wall of shaft contraposition are axial in the wind shield
Electromagnet on the inner-walls of duct that may be reversed is set, and iron plate, the electromagnetism Tie Tong are set in the corresponding position of the wind shield
The power supply that circuit is crossed with the wind turbine is connected.
As preferred technical solution, the shaft is horizontally disposed with.
As preferred technical solution, in the affixed rain cover in air outlet top of the vertical pipeline.
The utility model electromagnet cooperates with wind shield, and in fan operation, exhaust duct is in complete open state,
When fan parking or power-off, the automatic loss of excitation of electromagnet, wind shield by gravity falls and closes exhaust duct automatically.This reality
It is simple with new structure, it is easy to operate, on exhaust air rate without influence during fan operation.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the utility model one embodiment, i.e., pipeline is the structure diagram of horizontal direction；
Fig. 2 is the structure diagram under the utility model one embodiment working condition；
Fig. 3 is another embodiment of the utility model, i.e., pipeline is the structure diagram of vertical direction；
Fig. 4 is the structure diagram under the utility model another embodiment working condition.
In figure：1- horizontal pipes；1'- vertical pipelines；2- shafts；3- wind shields；4- positive stop strips；5- electromagnet；6- iron plates；
7- Air Filters；8- rain covers；11- air inlets；12- air outlets.
Specific embodiment
As depicted in figs. 1 and 2, the utility model is used to prevent an implementation of the fan outlet structure of gas backstreaming
Example, including horizontal pipe 1, horizontal pipe cross section is square, and described 1 one end of horizontal pipe is air inlet 11, and air inlet 11 connects
It gives a dinner for a visitor from afar machine, the other end is air outlet 12, further includes the wind shield 3 being arranged on inside the horizontal pipe 1, the wind shield 3
The inner wall of shape size and the horizontal pipe 1 matches, and the inner wall by being arranged on the nearly middle part of the horizontal pipe 1 is horizontal
The shaft 2 of high-order one side is overturn axially upwards, and the shaft 2 is horizontally disposed, and the inner wall at the nearly middle part of the horizontal pipe 1 is horizontal
The affixed positive stop strip 4 in low level one side, the positive stop strip 4 are oppositely arranged with the shaft 2, axially may be reversed in the wind shield 3
Inner-walls of duct on electromagnet 5 is set, and iron plate 6 is set in the corresponding position of the wind shield 3, the electromagnet 5 passes through line
Road is connected with the power supply of the wind turbine.
The operation principle of the utility model is as follows：When fan operation, the air-flow in pipeline is from air inlet to air outlet stream
Dynamic, normal pressure promotes wind shield 3 to be overturn to air outlet direction, and since electromagnet 5 is auto-power on and produce after fan operation
Magnetisation, the iron plate 5 that wind shield 3 was flipped up on the later stage is securely adsorbed by magnetic attraction on electromagnet 5, so as to fulfill air draft
The unobstructed air draft in all-pass road in pipeline, as shown in Figure 2；When wind turbine is because shutting down or powering off out of service, electromagnet 5 is also therewith
It automatically powers off, loses magnetism and rear wind-break panels 5 is attracted to downwardly turn over reset by gravity, and be limited item 4 and stop, Bu Huiyin
Continue for the negative pressure in pipeline to 11 1 side to overturn of air inlet, so as to avoid after wind turbine shuts down gas because of the negative pressure in pipeline
And generate reflux.
In another embodiment of the utility model, Air Filter 7 at the air outlet 12 of the horizontal pipe 1 is set, is prevented
The only entrance of dust etc..
As shown in Figure 3 and Figure 4, the utility model additionally provides another fan outlet knot for being used to prevent gas backstreaming
Structure, in this embodiment, including vertical pipeline 1', the vertical pipeline 1' lower ends are air inlet 11, and upper end is air outlet 12, also
Including the wind shield 3 being arranged on inside the vertical pipeline 1', the shape size of the wind shield 3 and the vertical pipeline 1' phases
Matching, and the shaft 2 by being arranged on the nearly middle part inner walls of the vertical pipeline 1' is overturn axially upwards, the shaft 2 is horizontal
It sets, the affixed positive stop strip 4 on the vertical pipeline 1' inner walls of the shaft 2 contraposition, axially may be reversed in the wind shield 3
Electromagnet 5 on inner-walls of duct is set, and iron plate 6 is set in the corresponding position of the wind shield 3, the electromagnet 5 passes through circuit
It is connected with the power supply of the wind turbine.
The substantially same first embodiment of the operation principle of the embodiment, wherein electromagnet 5 are preferably formed with certain thickness so that gear
Aerofoil 3 with the angle of horizontal plane is not 90 degree after being flipped up and being adsorbed by electromagnet 5, that is, has certain inclination, so work as electricity
After the power-off of magnet 5 loses magnetism, wind shield 3 quickly can be downwardly turned over and resetted by gravity.
In a further advantageous embodiment, in the affixed rain cover 8 in the air outlet top of the vertical pipeline 1'.It can prevent
Rainwater enters pipeline, damages fan assembly.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Simply illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed scope is defined by the appending claims and its equivalent thereof.
Claims (6)
1. for preventing the fan outlet structure of gas backstreaming, including horizontal pipe (1), described horizontal pipe (1) one end is
Air inlet (11), the other end are air outlet (12), it is characterised in that：It further includes and is arranged on the internal gear of the horizontal pipe (1)
Aerofoil (3), shape size and the horizontal pipe (1) of the wind shield (3) match, and by being arranged on the horizontal tube
Shaft (2) axial turning of the horizontal high-order one side of inner wall at the nearly middle part in road (1), the inner wall at the nearly middle part of the horizontal pipe (1)
The horizontal affixed positive stop strip in low level one side (4), the positive stop strip (4) is oppositely arranged with the shaft (2), in the wind shield (3)
Electromagnet (5) on the inner-walls of duct that axially may be reversed is set, and iron plate (6) is set in the corresponding position of the wind shield (3),
The electromagnet (5) is connected by circuit with the power supply of the wind turbine.
2. the fan outlet structure as described in claim 1 for being used to prevent gas backstreaming, which is characterized in that the shaft
(2) it is horizontally disposed with.
3. the fan outlet structure as described in claim 1 for being used to prevent gas backstreaming, which is characterized in that in the level
Air Filter (7) is set at the air outlet (12) of pipeline (1).
4. for preventing the fan outlet structure of gas backstreaming, including vertical pipeline (1'), the vertical pipeline (1') lower end
For air inlet (11), upper end is air outlet (12), it is characterised in that：It further includes and is arranged on the vertical pipeline (1') internal gear
(1') aerofoil (3), the shape size of the wind shield (3) match with the vertical pipeline, and described vertical by being arranged on
Pipeline (1') shaft (2) axial turning on nearly middle part inner wall, the vertical pipeline aligned in the shaft (2) are (1') solid on inner wall
Positive stop strip (4) is connect, electromagnet (5) on the inner-walls of duct that axially may be reversed in the wind shield (3) is set, and is kept out the wind described
The corresponding position of plate (3) sets iron plate (6), and the electromagnet (5) is connected by circuit with the power supply of the wind turbine.
5. the fan outlet structure as claimed in claim 4 for being used to prevent gas backstreaming, which is characterized in that the shaft
(2) it is horizontally disposed with.
6. the fan outlet structure as claimed in claim 4 for being used to prevent gas backstreaming, which is characterized in that described vertical
The affixed rain cover in air outlet top (8) of pipeline (1').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721202931.5U CN207395095U (en) | 2017-09-19 | 2017-09-19 | A kind of fan outlet structure for being used to prevent gas backstreaming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721202931.5U CN207395095U (en) | 2017-09-19 | 2017-09-19 | A kind of fan outlet structure for being used to prevent gas backstreaming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207395095U true CN207395095U (en) | 2018-05-22 |
Family
ID=62404597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721202931.5U Expired - Fee Related CN207395095U (en) | 2017-09-19 | 2017-09-19 | A kind of fan outlet structure for being used to prevent gas backstreaming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207395095U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229670A (en) * | 2020-09-19 | 2021-01-15 | 中国检验认证集团安徽有限公司 | Regional multilayer soil rapid extraction device |
| CN112413653A (en) * | 2020-10-14 | 2021-02-26 | 安徽凹凸家具有限公司 | Gas cooking bench for kitchen |
| CN113365481A (en) * | 2021-06-29 | 2021-09-07 | 西安易朴通讯技术有限公司 | Anti-backflow method and device applied to heat dissipation equipment and heat dissipation system |
-
2017
- 2017-09-19 CN CN201721202931.5U patent/CN207395095U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229670A (en) * | 2020-09-19 | 2021-01-15 | 中国检验认证集团安徽有限公司 | Regional multilayer soil rapid extraction device |
| CN112413653A (en) * | 2020-10-14 | 2021-02-26 | 安徽凹凸家具有限公司 | Gas cooking bench for kitchen |
| CN113365481A (en) * | 2021-06-29 | 2021-09-07 | 西安易朴通讯技术有限公司 | Anti-backflow method and device applied to heat dissipation equipment and heat dissipation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |