CN207814581U - A kind of unidirectional flame proof valve preventing dust explosion - Google Patents
A kind of unidirectional flame proof valve preventing dust explosion Download PDFInfo
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- CN207814581U CN207814581U CN201721670270.9U CN201721670270U CN207814581U CN 207814581 U CN207814581 U CN 207814581U CN 201721670270 U CN201721670270 U CN 201721670270U CN 207814581 U CN207814581 U CN 207814581U
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- flap
- discharge nozzle
- electromagnet
- wall
- control panel
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Abstract
The utility model is related to dust conveying technology fields, disclose a kind of unidirectional flame proof valve preventing dust explosion, including shell, shell both ends are respectively arranged with feed pipe and discharge nozzle and the flap for opening and closing feed pipe；Inner walls are provided with the electromagnet that can adsorb flap, and electromagnet is located at same horizontal line with rotation axis；It is hinged with control panel on the inner wall of discharge nozzle lower part, discharging inside pipe wall is located at the elastic switch that control electromagnet is provided on the right side of control panel and discharge nozzle hinged place, the utility model flap is horizontally set on feed pipe top, control panel is overthrown by explosion time shock wave, so that connecting rod is rotated and presses the elastic switch inside discharge nozzle, it is fallen so as to cause flap, make flap and feed pipe mechanical seal, it can be propagated toward upstream by pipeline to avoid the shock wave and flame that explosion generates, it avoids generating subsequent explosion, and flap does not interfere with dust transport, dust is set to be transported in the utility model unobstructed.
Description
Technical field
The utility model is related to dust conveying technology fields, and in particular to a kind of unidirectional flame proof valve preventing dust explosion.
Background technology
Dust at present explosion is easily happened at grain and agricultural product dust, metallic dust, coal dust, pharmaceutical engineering powder, oil
The industries such as mechanical ash, textile industry fiber, timber processing.With the hair of production-scale continuous expansion and powder retrofit
Multiple trend is presented in the dust explosion accident of exhibition, China.On August 2nd, 2014, Fauna of Kunshan, Jiangsu Zhong Rong metal products Co., Ltd hair
Raw especially great aluminum dust explosion accident eventually leads to 146 people death, 258 people injury, 3.51 hundred million yuan of direct economic loss.For
Prevent the generation of fire and explosion accident, national departments concerned from requiring these workplaces that should take stringent explosion precaution.Flame proof
Valve is anti-by special designing, can stop that pressure wave and flame spread to it from the process equipment of dust explosion along pipe laying
The destroying infection that its process equipment generates, by explosion partition in part, by loss caused by inevitable dust explosion accident
It is preferably minimized.
Application No. is the patents of CN201710160378.1 to disclose a kind of unidirectional flame proof valve open in usual, it is characterised in that：
Including valve body, flap, magnet, deflector, pipe flange, the deflector is connected on the flap, the pipe flange includes tube method
Blue inclined-plane, the flap is under normal conditions by magnet effect together with magnet adsorption, and the separate pipe flange inclined-plane, when quick-fried
When fried generation, the flap is pushed deflector and flap by explosion wave percussion so that flap and the pipe flange
Inclined-plane is bonded, and forms mechanical seal, and the unidirectional flame proof valve is closed.Although this patent can separate explosion generate shock wave and
Flame, prevents subsequent explosion, but for convenience of explosion time, shock wave by flap and feed pipe mechanical seal, flap and into
Angle between expects pipe only has 20-30 °, to stop dust, influences transport of the dust in flame proof valve.
Utility model content
Based on the above technical problem, the utility model provides a kind of unidirectional flame proof valve preventing dust explosion, to solve
The technical issues of existing unidirectional flame proof valve of having determined influences dust transport.
The technical solution adopted in the utility model is as follows：
A kind of unidirectional flame proof valve for dust explosion, including shell, shell both ends are respectively arranged with feed pipe and discharging
Pipe and the flap for opening and closing feed pipe；Described flap one end is provided with rotation axis, and flap can be rotated around rotation axis and be realized
Feed pipe opens and closes；The flap is metallicl magnetic material, and the inner walls are provided with the electromagnet that can adsorb flap, electromagnetism
Iron is located at same horizontal line with rotation axis；
The control panel of extended discharge nozzle, control panel length direction and discharging are hinged on the inner wall of the discharge nozzle lower part
Length of tube direction is vertical, and the first clump weight that can stretch out discharge nozzle is provided at the top of control panel；The discharging inside pipe wall is located at
The elastic switch of control electromagnet, elastic switch protrusion discharging inside pipe wall are provided on the right side of control panel and discharge nozzle hinged place；Institute
Discharging inside pipe wall is stated to be located at control panel left side vertical and be provided with the supporting rod for being used to support control panel.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：The utility model flap
It is horizontally set on feed pipe top, control panel is overthrown by explosion time shock wave, connecting rod is made to rotate and press inside discharge nozzle
Elastic switch, close electromagnet, fallen so as to cause flap, make flap and feed pipe mechanical seal, can to avoid explosion production
Raw shock wave and flame is propagated by pipeline toward upstream, avoids generating subsequent explosion, and flap is horizontally set on feed pipe top,
So flap does not interfere with dust transport, it is unobstructed to make dust be transported in the utility model；
Preferably, the enclosure interior is provided with control device, and control device includes the connecting rod hinged with inner walls,
Connecting rod can be that the center of circle is rotated in vertical direction using hinge joint, and one end of connecting rod is provided with for separating electromagnet and flap
Isolation board, the other end are provided with the second clump weight, gap are provided between the electromagnet and rotation axis, between isolation board can stretch into
In gap；
The connecting rod one side is provided with elastic, and discharge nozzle side wall is provided with and the matched through-hole of elastic, elasticity
Column stretches into through-hole and connects connecting rod with discharge nozzle；The elastic protrusion discharging inside pipe wall, elastic end are spherical shape, control
Elastic can be squeezed out inner wall by plate；To be damaged in elastic switch, when causing explosion time that cannot close electromagnet, control panel can
Connecting rod and discharge nozzle are separated, to make isolation board movement between electromagnet and flap, make flap rotation and and feed pipe
Mechanical seal；So as to play double protection；
Preferably, the inner walls are located at the limiting plate that restricted isolation board movement is arranged on the left of electromagnet, limiting plate
Isolation board can be limited between flap and electromagnet, isolation board is avoided to pass through the excessive velocities between flap and electromagnet,
The case where causing flap that cannot be detached with electromagnet.
Preferably, described rotation axis one end is connected with one-way damper, to one-way damper can to avoid flap with into
When expects pipe seals, flap is thrown open by suction function.
Preferably, the electromagnet relatively rotates one end of axis with flap and connect, to make the connection of electromagnet and flap
Point farther out, reduces the burden of electromagnet away from flap center of gravity.
Preferably, the charging end surfaces are the inclined inclined-plane in lower section to the left, to make flap and feed pipe be easier to connect
It connects.
Description of the drawings
Fig. 1 is the utility model totality connection diagram；Flap and electromagnet connection status；
Fig. 2 is enlarged drawing at A in the utility model Fig. 1；
Fig. 3 is the utility model totality connection diagram；Flap and feed pipe connection status；
Fig. 4 is enlarged drawing at B in the utility model Fig. 3；
Fig. 5 is the utility model connecting rod and discharge nozzle connection diagram；
It is marked in figure：1- shells；2- feed pipes；3- discharge nozzles；4- flaps；5- rotation axis；6- electromagnet；7- control panels；
The first clump weights of 8-；9- elastic switch；10- supporting rods；11- connecting rods；12- isolation boards；The second clump weights of 13-；15- elasticity
Column；16- through-holes；17- limiting plates.
Specific implementation mode
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
It elaborates below in conjunction with the accompanying drawings to the utility model, it is clear that described embodiment is the utility model one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside", "front", "rear" is orientation based on ... shown in the drawings or position
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, device or element are not indicated or implied the indicated
It must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.This
Outside, term " first ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
As shown in Figure 1, Figure 3, a kind of unidirectional flame proof valve for dust explosion, including shell 1,1 both ends of shell are set respectively
It is equipped with feed pipe 2 and discharge nozzle 3 and the flap 4 for opening and closing feed pipe 2；4 one end of the flap is provided with rotation axis 5, valve
Valve 4 can rotate around rotation axis 5 and realize feed pipe 2 and open and close；The flap 4 is metallicl magnetic material, the setting of 1 inner wall of the shell
There are the electromagnet 6 that can adsorb flap 4, electromagnet 6 to be located at same horizontal line with rotation axis 5；
As shown in Figure 2, Figure 4 shows, it is hinged with the control panel 7 of extended discharge nozzle 3 on the inner wall of 3 lower part of the discharge nozzle, controls
7 length direction of making sheet is vertical with 3 length direction of discharge nozzle, and 7 top of control panel is provided with the first counterweight that can stretch out discharge nozzle 3
Block 8；3 inner wall of the discharge nozzle is located at the elastic switch that control electromagnet 6 is provided on the right side of control panel 7 and 3 hinged place of discharge nozzle
9, elastic switch 9 protrudes 3 inner wall of discharge nozzle；3 inner wall of the discharge nozzle, which is located at 7 left side vertical of control panel and is provided with, is used to support control
The supporting rod 10 of making sheet 7.
The shell 1 is internally provided with control device, and control device includes the connecting rod 11 hinged with 1 inner wall of shell, even
Extension bar 11 can be rotated using hinge joint as the center of circle in vertical direction, and 11 1 end of connecting rod is provided with for separating electromagnet 6 and valve
The isolation board 12 of valve 4, the other end are provided with the second clump weight 13, gap are provided between the electromagnet 6 and rotation axis 5, every
It can be stretched into gap from plate 12；
As shown in figure 5,11 one side of the connecting rod is provided with elastic 15,3 side wall of discharge nozzle is provided with and elastic
15 matched through-holes 16, elastic 15 stretch into through-hole 16 and connect connecting rod 11 and discharge nozzle 3；The protrusion discharging of the elastic 15
3 inner wall of pipe, 15 end of elastic are spherical shape, and elastic 15 can be squeezed out inner wall by control panel 7.
1 inner wall of the shell is located at 6 left side of electromagnet and the limiting plate 17 that restricted isolation board 12 moves is arranged；The rotation
5 one end of axis is connected with one-way damper；The electromagnet 6 relatively rotates 5 one end of axis with flap 4 and connect；2 end of the feed pipe
Face is the inclined inclined-plane in lower section to the left.
The operation principle of the utility model is：When normal work, the utility model state as shown in Figure 1, electromagnet 6 is by valve
Valve 4 is fixed on horizontal position, and connecting rod 11 is connect by elastic 15 across through-hole 16 with discharge nozzle 3, control panel 7 and supporting rod 10
Flexible connection, and be obtuse angle with the angle of 3 open at one end of discharge nozzle, when charging, dust enters shell 1 from feed pipe 2, and from going out
It is discharged in expects pipe 3；
When explosion time occurs, shock wave and flame are gone out from discharge nozzle 3, and control panel 7 is washed open, and control panel 7 is rotating
The elastic switch 9 being arranged inside discharge nozzle 3 is depressed in the process, electromagnet 6 is closed, is made in gravity so as to cause flap 4
Rotated along rotation axis 5 with lower, and with 2 mechanical seal of feed pipe, prevent shock wave and flame from entering in feed pipe 2, formed secondary
Explosion；
When the damage of elastic switch 9 leads to that electromagnet 6 cannot be closed, control panel 7 squeezes elastic 15 in rotation process
Go out discharge nozzle 3, connecting rod 11 separates connecting rod 11 and discharge nozzle 3 under 13 gravity of the second clump weight, and makes connecting rod
11 rotate in vertical direction, to drive the isolation board 12 at 11 top of connecting rod to be moved between electromagnet 6 and flap 4, limit
Isolation board 12 is stuck in 4 position of electromagnet 6 and flap by plate 17；When isolation board 12 is between electromagnet 6 and flap 4, flap 4 and electricity
Magnetic force between magnet 6 reduces, and flap 4 is caused to be rotated under the effect of gravity along rotation axis 5, and with 2 mechanical seal of feed pipe, resistance
Only shock wave and flame enter in feed pipe 2, form subsequent explosion.
In the following, being described in further details in conjunction with specific embodiments to the utility model.
Specific embodiment
Embodiment 1
A kind of unidirectional flame proof valve for dust explosion, including shell 1,1 both ends of shell are respectively arranged with feed pipe 2 and go out
Expects pipe 3 and flap 4 for opening and closing feed pipe 2；4 one end of the flap is provided with rotation axis 5, and flap 4 can be 5 turns around rotation axis
It moves and realizes feed pipe 2 and open and close；The flap 4 is metallicl magnetic material, and 1 inner wall of the shell, which is provided with, to adsorb flap 4
Electromagnet 6, electromagnet 6 and rotation axis 5 are located at same horizontal line；
Be hinged with the control panel 7 of extended discharge nozzle 3 on the inner wall of 3 lower part of the discharge nozzle, 7 length direction of control panel with
3 length direction of discharge nozzle is vertical, and 7 top of control panel is provided with the first clump weight 8 that can stretch out discharge nozzle 3；The discharge nozzle 3
Inner wall is located at the elastic switch 9 that control electromagnet 6 is provided on the right side of control panel 7 and 3 hinged place of discharge nozzle, and elastic switch 9 protrudes
3 inner wall of discharge nozzle；3 inner wall of the discharge nozzle is located at 7 left side vertical of control panel and is provided with the supporting rod for being used to support control panel 7
10。
Embodiment 2
The present embodiment is advanced optimized based on embodiment 1, and the shell 1 is internally provided with control device, control device
Include the connecting rod 11 hinged with 1 inner wall of shell, connecting rod 11 can be that the center of circle is rotated in vertical direction using hinge joint, connecting rod 11
One end is provided with the isolation board 12 for separating electromagnet 6 and flap 4, and the other end is provided with the second clump weight 13, the electricity
Gap is provided between magnet 6 and rotation axis 5, isolation board 12 can stretch into gap；
11 one side of the connecting rod is provided with elastic 15, and 3 side wall of discharge nozzle is provided with matched logical with elastic 15
Hole 16, elastic 15 stretch into through-hole 16 and connect connecting rod 11 and discharge nozzle 3；The elastic 15 protrudes 3 inner wall of discharge nozzle, bullet
Property 15 end of column be spherical shape, control panel 7 can by elastic 15 squeeze out inner wall, to elastic switch 9 damage, lead to explosion time not
When can close electromagnet 6, control panel 7 can separate connecting rod 11 and discharge nozzle 3, to make the movement of isolation board 12 in electromagnet
Between 6 and flap 4, make flap 4 rotate and with 2 mechanical seal of feed pipe；So as to play double protection.
Embodiment 3
The present embodiment is advanced optimized based on embodiment 2, and it is limited that 1 inner wall of the shell is located at 6 left side setting of electromagnet
Isolation board 12 can be limited between flap 4 and electromagnet 6, avoid by the limiting plate 17 that isolation board 12 processed moves, limiting plate 17
Isolation board 12 is by the excessive velocities between flap 4 and electromagnet 6, the case where causing flap 4 that cannot be detached with electromagnet 6.
Embodiment 4
The present embodiment is advanced optimized based on embodiment 1, and 5 one end of the rotation axis is connected with one-way damper, to
When one-way damper can seal to avoid flap 4 and feed pipe 2, thrown open by suction function.
Embodiment 5
The present embodiment is advanced optimized based on embodiment 1, and the electromagnet 6 relatively rotates 5 one end of axis with flap 4 and connects
It connects, to make the tie point of electromagnet 6 and flap 4 farther out, reduce the burden of electromagnet 6 away from 4 center of gravity of flap.
Embodiment 6
The present embodiment is advanced optimized based on embodiment 1, and 2 end face of the feed pipe is the inclined inclined-plane in lower section to the left,
To make flap 4 and feed pipe 2 be easier to connect.
It is the embodiments of the present invention as described above.The utility model is not limited to the above embodiment, anyone
It should learn the structure change made under the enlightenment of the utility model, it is every that there is same or similar skill with the utility model
Art scheme, each falls within the scope of protection of the utility model.
Claims (6)
1. a kind of unidirectional flame proof valve preventing dust explosion, including shell (1), shell (1) both ends are respectively arranged with feed pipe (2)
Flap (4) with discharge nozzle (3) and for opening and closing feed pipe (2)；It is characterized in that：Described flap (4) one end, which is provided with, to be turned
Moving axis (5), flap (4) can rotate around rotation axis (5) and realize feed pipe (2) and open and close；The flap (4) is metal magnetic material
Material, shell (1) inner wall are provided with the electromagnet (6) that can adsorb flap (4), and electromagnet (6) is located at same with rotation axis (5)
One horizontal line；
The control panel (7) of extended discharge nozzle (3), control panel (7) length side are hinged on the inner wall of discharge nozzle (3) lower part
To vertical with discharge nozzle (3) length direction, the first clump weight that can stretch out discharge nozzle (3) is provided at the top of control panel (7)
(8)；Discharge nozzle (3) inner wall, which is located on the right side of control panel (7) and discharge nozzle (3) hinged place, is provided with control electromagnet (6)
Elastic switch (9), elastic switch (9) protrude discharge nozzle (3) inner wall；Discharge nozzle (3) inner wall is located at perpendicular on the left of control panel (7)
Directly it is provided with the supporting rod (10) for being used to support control panel (7).
2. the unidirectional flame proof valve according to claim 1 for preventing dust explosion, it is characterised in that：The shell (1) is internal
It is provided with control device, control device includes the connecting rod (11) hinged with shell (1) inner wall, and connecting rod (11) can be with hinge joint
It is rotated in vertical direction for the center of circle, (11) one end of connecting rod is provided with the isolation board for separating electromagnet (6) and flap (4)
(12), the other end is provided with the second clump weight (13), and gap, isolation board are provided between the electromagnet (6) and rotation axis (5)
(12) it can stretch into gap；
Connecting rod (11) one side is provided with elastic (15), and discharge nozzle (3) side wall is provided with to be matched with elastic (15)
Through-hole (16), elastic (15) stretches into through-hole (16) and connects connecting rod (11) and discharge nozzle (3)；The elastic (15) is convex
Go out discharge nozzle (3) inner wall, elastic (15) end is spherical shape, and elastic (15) can be squeezed out inner wall by control panel (7).
3. the unidirectional flame proof valve according to claim 2 for preventing dust explosion, it is characterised in that：Shell (1) inner wall
The mobile limiting plate (17) of restricted isolation board (12) is set on the left of electromagnet (6).
4. the unidirectional flame proof valve according to claim 1 for preventing dust explosion, it is characterised in that：The rotation axis (5) one
End is connected with one-way damper.
5. the unidirectional flame proof valve according to claim 1 for preventing dust explosion, it is characterised in that：The electromagnet (6) with
Flap (4) relatively rotates the connection of (5) one end of axis.
6. the unidirectional flame proof valve according to claim 1 for preventing dust explosion, it is characterised in that：Feed pipe (2) end
Face is the inclined inclined-plane in lower section to the left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670270.9U CN207814581U (en) | 2017-12-05 | 2017-12-05 | A kind of unidirectional flame proof valve preventing dust explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670270.9U CN207814581U (en) | 2017-12-05 | 2017-12-05 | A kind of unidirectional flame proof valve preventing dust explosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814581U true CN207814581U (en) | 2018-09-04 |
Family
ID=63334828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721670270.9U Expired - Fee Related CN207814581U (en) | 2017-12-05 | 2017-12-05 | A kind of unidirectional flame proof valve preventing dust explosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288448A (en) * | 2018-11-09 | 2019-02-01 | 苏州市春菊电器有限公司 | A kind of anti-dust fall structure of dust cup of dust collector air inlet |
-
2017
- 2017-12-05 CN CN201721670270.9U patent/CN207814581U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288448A (en) * | 2018-11-09 | 2019-02-01 | 苏州市春菊电器有限公司 | A kind of anti-dust fall structure of dust cup of dust collector air inlet |
| CN109288448B (en) * | 2018-11-09 | 2024-04-16 | 苏州市春菊电器有限公司 | Dust fall prevention structure for air inlet of dust cup of dust collector |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20201205 |