CN210770481U - Bidirectional explosion-proof valve and explosion-proof system for dust environment - Google Patents
Bidirectional explosion-proof valve and explosion-proof system for dust environment Download PDFInfo
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- CN210770481U CN210770481U CN201921728409.XU CN201921728409U CN210770481U CN 210770481 U CN210770481 U CN 210770481U CN 201921728409 U CN201921728409 U CN 201921728409U CN 210770481 U CN210770481 U CN 210770481U
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Abstract
The utility model discloses a two-way flame proof valve and flame proof system for dust environment, it includes: the valve body is a pipeline which is through from front to back, the compressed gas blowing openings are distributed on the valve body, 2 compressed gas blowing openings are arranged, the 2 compressed gas blowing openings are located in the same plane but opposite to each other in direction, and the compressed gas blowing openings penetrate through the inside of the valve body; the valve plate is pivotally and fixedly arranged inside the valve body; the limiting element with magnet is installed to one side that the valve plate contacted, limiting element includes magnetic force limit baffle and magnetic force limit baffle ring, magnetic force limit baffle has two at least, magnetic force limit baffle certainly the inner wall of valve body extends to its inside, magnetic force limit baffle ring is set up on the inner wall of valve body, be used for the restriction the valve plate continues to rotate.
Description
Technical Field
The utility model belongs to the technical field of the dust explosion isolating device and specifically relates to a two-way flame proof valve and flame proof system for dust environment is related to.
Background
In recent years, dust explosion accidents frequently occur, and great loss in aspects of personal and property safety and the like is brought to enterprises related to dust type production business. In order to reduce the harm caused by the explosion of the dust removal air pipe and the dust remover as much as possible, the explosion-proof valve is a common method, and the explosion generated at one end can be isolated from the other end by the explosion-proof valve, so that the explosion cannot spread to the other end.
At present, enterprises mostly use explosion-proof flap valves for explosion isolation, and the explosion-proof flap valves can only be installed at the inlet air pipes of dust removal devices to prevent the explosion generated at one end of the dust remover from spreading to the upstream process, so that the application range is limited, and the explosion-proof performance of the flap valves is difficult to reliably verify.
Disclosure of Invention
According to the drawback that the isolation reprint valve that above-mentioned provided exists, the utility model provides a two-way flame proof valve for dust environment through the valve plate rotation angle, multiple strict seal measure, reliable rotatory spacing and real-time pressure monitoring who utilizes simple structure's rotary valve, precision control, can reach effect such as initiative two-way flame proof, response are rapid, quick closure.
The utility model provides a two-way flame proof valve for dust environment, it includes: the valve body is a pipeline which is through from front to back, the compressed gas blowing openings are distributed on the valve body, 2 compressed gas blowing openings are arranged, the 2 compressed gas blowing openings are located in the same plane but opposite to each other in direction, and the compressed gas blowing openings penetrate through the inside of the valve body; the valve plate is pivotally and fixedly arranged inside the valve body; the limiting element with magnet is installed to one side that the valve plate contacted, limiting element includes magnetic force limit baffle and magnetic force limit baffle ring, magnetic force limit baffle has two at least, magnetic force limit baffle certainly the inner wall of valve body extends to its inside, magnetic force limit baffle ring is set up on the inner wall of valve body, be used for the restriction the valve plate continues to rotate.
Furthermore, the bidirectional explosion-proof valve for the dust environment further comprises two fixing assemblies, wherein the two fixing assemblies are symmetrically distributed on the valve body relative to the valve plate, and the fixing assemblies are used for fixing and rotatably arranging the valve plate in the valve body.
Further, the fixing assembly comprises a limit joint, a valve rod and a bearing, the bearing is arranged inside the limit joint, one end of the valve rod penetrates out of the valve body and penetrates into the limit joint with the bearing, and the other end of the valve rod penetrates into the valve plate, so that the valve plate pivots in the valve body.
Furthermore, the bidirectional explosion-proof valve further comprises two self-locking elements, the self-locking elements are arranged on the inner wall of the valve body, when the valve plate is closed, the valve plate compresses the self-locking elements when passing through the self-locking elements and rotates to pass through the self-locking elements, and after the valve plate passes through the self-locking elements, the self-locking elements pop up to restore to an initial state, so that the valve plate is limited to rotate reversely.
Furthermore, the self-locking element is provided with a lower tangent plane and a higher tangent plane, the valve plate is firstly contacted with the lower tangent plane when being closed, so that the self-locking element is compressed, and after the valve plate passes through the self-locking element, the higher tangent plane is contacted with the valve plate, so that the valve plate is limited to rotate reversely.
Furthermore, the magnetic limiting baffle of the limiting element and the compressed gas injection opening are distributed on the same straight line, and the magnetic limiting baffle of the limiting element extends from the inner wall of the valve body to the inside of the valve body.
Further, the magnetic limit stop ring is arranged at a position which is not positioned on the same pipe diameter section of the valve body.
Further, the bidirectional explosion-proof valve for the dust environment further comprises connecting flanges, and the connecting flanges are fixedly arranged at two ends of the valve body so as to install the valve body on a dust removal pipeline of the powder-related process.
Further, the valve plate rotates towards the position without the magnetic limiting baffle under the pressure of the gas blown out from the compressed gas blowing opening, and the valve plate is tightly attached to the magnetic limiting baffle ring after rotating 90 degrees.
The utility model also provides a two-way flame proof system for dust environment, it includes: the bidirectional explosion-proof valve comprises a valve body, a valve plate, compressed gas blowing openings and a limiting element, wherein the valve body is a pipeline which is communicated from front to back, the number of the compressed gas blowing openings is 2, the 2 compressed gas blowing openings are positioned in the same plane but opposite to each other in direction, and the compressed gas blowing openings are communicated inside the valve body; the valve plate is pivotally and fixedly arranged inside the valve body; the magnetic valve comprises a valve body, a valve plate and a limiting element, wherein the valve plate is provided with a valve seat, the valve seat is provided with a valve plate, the valve plate is provided with a valve seat, the; the pressure difference sensor is electrically connected with the valve body and is used for monitoring the pressure difference between the upstream and downstream of the valve body in real time; the controller is electrically connected with the differential pressure sensor and the compressed gas blowing opening, when the value transmitted to the controller by the differential pressure sensor exceeds a set threshold value, the controller sends an opening signal to the compressed gas blowing opening, and then compressed air is sprayed out to close the valve plate.
Furthermore, the bidirectional explosion-proof system for the dust environment further comprises a compressed gas pipeline and a compressed gas cylinder, the compressed gas pipeline is communicated with the compressed gas injection opening, and the compressed gas cylinder is communicated with the compressed gas pipeline and used for providing compressed gas for the compressed gas pipeline and then introducing the compressed gas into the valve body.
Further, the compressed gas is an inert gas.
The utility model provides a two-way flame proof valve of dust environment and flame proof system can real-time supervision valve body both sides pipeline's pressure differential, and after pressure differential sensor will surpass the pressure differential of threshold value and convey to the controller, compressed gas blowing mouth opened jetting compressed gas and made the valve plate rotate then close, realizes initiative two-way flame proof function; compared with the prior product, the utility model has the advantages of do: 1. the valve plate is opened, so that the influence on the air flow in the air pipe is small; 2. the double limiting not only ensures the stability of the normally open state of the valve plate, but also can ensure the effective explosion suppression; 3. the explosion-proof valve has the advantages of simple structure, clear function and high cost performance.
Drawings
FIG. 1 is a perspective view of the two-way flame-proof valve for dust environment in the open state;
FIG. 2 is a perspective view of the two-way explosion suppression valve for dust environment in a closed state according to the present invention;
FIG. 3 is a cross-sectional view of a two-way explosion suppression valve used in a dust environment according to the present invention;
FIG. 4 is a schematic structural view of a bidirectional explosion-proof valve for dust environment according to the present invention;
fig. 5 shows that the utility model provides a pair of a local enlargements of two-way flame proof valve for dust environment.
Detailed Description
The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
It is to be understood that the described embodiments are merely some embodiments and not all embodiments of the present application, and that the following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application and its applications.
In the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or all manner of connections; "coupled" may be direct or indirect through an intermediary. The terms "upper", "lower", and the like indicate orientations or positional relationships based on the manner or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific orientation, be constructed and operated in a specific orientation. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1-5, the utility model provides a two-way flame proof valve A for dust environment, it includes: the valve comprises a valve body 3, a valve plate 7, compressed gas blowing openings 8 and a limiting element 9, wherein the valve body 3 is a pipeline which is through from front to back, the compressed gas blowing openings 8 are distributed on the valve body 3, and the compressed gas blowing openings 8 are through the inside of the pipeline of the valve body 3; the valve plate 7 is pivotably and fixedly arranged inside the valve body 3; the limiting element 9 with magnet is installed to one side that the valve plate 7 contacted, limiting element 9 includes magnetic force limit baffle 91 and magnetic force limit baffle ring 92, magnetic force limit baffle 91 has two at least, magnetic force limit baffle 91 certainly the inner wall of valve body 3 is inside to extend, magnetic force limit baffle ring 92 is set up on the inner wall of valve body 3, is used for the restriction valve plate 7 continues the rotation.
Further, the bidirectional explosion-proof valve A for the dust environment further comprises two fixing assemblies 10, the fixing assemblies 10 are symmetrically distributed on the valve body 3 relative to the valve plate 7, and the fixing assemblies 10 are used for fixing and rotatably arranging the valve plate 7 in the valve body 3.
Further, the fixing assembly 10 includes a limit joint 4, a valve rod 5 and a bearing 6, the bearing 6 is disposed inside the limit joint 4, one end of the valve rod 5 penetrates out of the valve body 3 and into the limit joint 4 with the bearing 6, and the other end of the valve rod 5 penetrates into the valve plate 7, so that the valve plate 7 pivots in the valve body 3.
Further, the bidirectional explosion-proof valve A further comprises two self-locking elements 11, the self-locking elements 11 are arranged on the inner wall of the valve body 3, when the valve plate 7 is closed, the valve plate 7 compresses the self-locking elements 11 to rotate through the self-locking elements 11 when passing through the self-locking elements 11, and after the valve plate 7 passes through the self-locking elements 11, the self-locking elements 11 are ejected to restore to an initial state, so that the valve plate 7 is limited to rotate reversely.
Further, the self-locking element 11 has a lower tangent plane 111 and an upper tangent plane 112, the valve plate 7 contacts with the lower tangent plane 111 first when being closed, and then compresses the self-locking element 11, and after the valve plate 7 passes through the self-locking element 11, the upper tangent plane 112 contacts with the valve plate 7, and then the valve plate 7 is limited to rotate reversely.
Further, the magnetic limiting baffle 91 of the limiting element 9 and the compressed gas blowing opening 8 are distributed on the same vertical line, and the magnetic limiting baffle 91 of the limiting element 9 extends from the inner wall of the valve body 3 to the inside of the valve body 3.
Further, the magnetic limit stop ring 92 is arranged at a position which is not at the same pipe diameter section of the valve body 3.
Further, the bidirectional explosion-proof valve A for the dust environment further comprises a connecting flange 1, and the connecting flange is fixedly arranged at two ends of the valve body 3, so that the valve body 3 can be installed on a dust removal pipeline of a powder-related process.
Further, the valve plate 7 rotates in a direction in which the magnetic force limiting baffle 91 is not provided under the pressure of the gas blown out from the compressed gas blowing port 8, and after the valve plate 7 rotates by 90 degrees, the valve plate and the magnetic force limiting baffle ring 92 are tightly attached to each other.
The utility model also provides a two-way flame proof system for dust environment, it includes: the explosion-proof bidirectional valve comprises a bidirectional explosion-proof valve A, a differential pressure sensor (not shown in the figure) and a controller (not shown in the figure), wherein the bidirectional explosion-proof valve A comprises a valve body 3, a valve plate 7, a compressed gas blowing port 8 and a limiting element 9, the valve body 3 is provided with a pipeline which is communicated from front to back, the compressed gas blowing port 8 is symmetrically distributed on the valve body 3 about the symmetry axis of the valve body 3, and the compressed gas blowing port 8 is communicated with the inside of the pipeline of the valve body 3; the valve plate 7 is pivotably and fixedly arranged inside the valve body 3; a magnet is arranged on one side of the limiting element 9, which is in contact with the valve plate 7, the limiting element 9 comprises at least two magnetic limiting baffles 91 and magnetic limiting baffle rings 92, the magnetic limiting baffles 91 extend from the inner wall of the valve body 3 to the inside of the valve body, and the magnetic limiting baffle rings 92 are arranged on the inner wall of the valve body 3 to limit the valve plate 7 to rotate continuously; the pressure difference sensor is electrically connected with the valve body 3 and is used for monitoring the pressure difference between the upstream and the downstream of the valve body in real time; the controller is electrically connected with the differential pressure sensor and the compressed gas blowing opening 8, when the value transmitted to the controller by the differential pressure sensor exceeds a set threshold value, the controller sends an opening signal to the compressed gas blowing opening 8, and then compressed air is sprayed out to close the valve plate 7.
Further, the bidirectional explosion-proof valve A for the dust environment further comprises two fixing assemblies 10, the fixing assemblies 10 are symmetrically distributed on the valve body 3 relative to the valve plate 7, and the fixing assemblies 10 are used for fixing and rotatably arranging the valve plate 7 in the valve body 3.
Further, the fixing assembly 10 includes a limit joint 4, a valve rod 5 and a bearing 6, the bearing 6 is disposed inside the limit joint 4, one end of the valve rod 5 penetrates out of the valve body 3 and into the limit joint 4 with the bearing 6, and the other end of the valve rod 5 penetrates into the valve plate 7, so that the valve plate 7 pivots in the valve body 3.
Further, the bidirectional explosion-proof valve A further comprises two self-locking elements 11, the self-locking elements 11 are arranged on the inner wall of the valve body 3, when the valve plate 7 is closed, the valve plate 7 compresses the self-locking elements 11 to rotate through the self-locking elements 11 when passing through the self-locking elements 11, and after the valve plate 7 passes through the self-locking elements 11, the self-locking elements 11 are ejected to restore to an initial state, so that the valve plate 7 is limited to rotate reversely.
Further, the self-locking element 11 has a lower tangent plane 111 and an upper tangent plane 112, the valve plate 7 contacts with the lower tangent plane 111 first when being closed, and then compresses the self-locking element 11, and after the valve plate 7 passes through the self-locking element 11, the upper tangent plane 112 contacts with the valve plate 7, and then the valve plate 7 is limited to rotate reversely.
Furthermore, the magnetic limit baffle 91 of the limit element 9 and the compressed gas blowing opening 8 are distributed on the same vertical line, and the magnetic limit baffle 91 of the limit element extends from the inner wall of the valve body 3 to the inside of the valve body 3.
Further, the magnetic limit stop ring 92 is arranged at a position which is not at the same pipe diameter section of the valve body 3.
Further, the bidirectional explosion-proof valve A for the dust environment further comprises a connecting flange 1, and the connecting flange is fixedly arranged at two ends of the valve body 3, so that the valve body 3 can be installed on a dust removal pipeline of a powder-related process.
Further, the valve plate 7 rotates in a direction in which the magnetic force limiting baffle 91 is not provided under the pressure of the gas blown out from the compressed gas blowing port 8, and after the valve plate 7 rotates by 90 degrees, the valve plate and the magnetic force limiting baffle ring 92 are tightly attached to each other.
Further, the bidirectional explosion-proof system for the dust environment further comprises a compressed gas pipeline 12 and a compressed gas bottle 13, the compressed gas pipeline 12 is communicated with the compressed gas blowing opening 8, the compressed gas bottle 13 is communicated with the compressed gas pipeline 12 and used for providing compressed gas for the compressed gas pipeline 12 and then introducing the compressed gas into the valve body 3.
Further, the compressed gas is an inert gas.
The utility model provides a two-way flame proof valve of dust environment and flame proof system can real-time supervision valve body both sides pipeline ground pressure, and after pressure differential sensor will surpass threshold value ground pressure differential transmission to the controller, compressed gas blowing mouth opened jetting compressed gas and made the valve plate rotate and then close, realizes initiative two-way flame proof function; compared with the prior product, the utility model has the advantages of do: 1. the valve plate is opened, so that the influence on the air flow in the air pipe is small; 2. the double limiting not only ensures the stability of the normally open state of the valve plate, but also can ensure the effective explosion suppression; 3. the explosion-proof valve has the advantages of simple structure, clear function and high cost performance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A two-way flame proof valve for dust environment, it includes: the valve body is a pipeline which is through from front to back, the compressed gas blowing openings are distributed on the valve body, 2 compressed gas blowing openings are arranged, the 2 compressed gas blowing openings are located in the same plane but opposite to each other in direction, and the compressed gas blowing openings penetrate through the inside of the valve body; the method is characterized in that: the valve plate is pivotally and fixedly arranged inside the valve body; the limiting element with magnet is installed to one side that the valve plate contacted, limiting element includes magnetic force limit baffle and magnetic force limit baffle ring, magnetic force limit baffle has two at least, magnetic force limit baffle certainly the inner wall of valve body extends to its inside, magnetic force limit baffle ring is set up on the inner wall of valve body, be used for the restriction the valve plate continues to rotate.
2. The bidirectional explosion-proof valve for the dust environment according to claim 1, further comprising two fixing assemblies, wherein the two fixing assemblies are symmetrically distributed on the valve body relative to the valve plate, and the fixing assemblies are used for fixing and rotatably arranging the valve plate in the valve body.
3. The bidirectional explosion-proof valve for the dust environment according to claim 2, wherein the fixing assembly comprises a limit joint, a valve rod and a bearing, the bearing is arranged inside the limit joint, one end of the valve rod penetrates out of the valve body and penetrates into the limit joint with the bearing, and the other end of the valve rod penetrates into the valve plate, so that the valve plate pivots in the valve body.
4. A bidirectional explosion-proof valve for a dust environment according to any one of claims 1 to 3, further comprising two self-locking elements, wherein the self-locking elements are arranged on the inner wall of the valve body, when the valve plate is closed, the valve plate compresses the self-locking elements to rotate through the self-locking elements when passing through the self-locking elements, and after the valve plate passes through the self-locking elements, the self-locking elements are ejected and restored to an initial state, so that the valve plate is limited from rotating reversely.
5. The two-way flameproof valve for the dust environment of claim 4, wherein the self-locking element has a lower cut surface and a higher cut surface, the valve plate contacts the lower cut surface first when being closed, and then compresses the self-locking element, and when the valve plate passes through the self-locking element, the higher cut surface contacts the valve plate, and then limits the valve plate to rotate reversely.
6. The bidirectional explosion-proof valve for the dust environment according to claim 1, wherein the magnetic force limiting baffle of the limiting element and the compressed gas injection opening are distributed on the same straight line, and the magnetic force limiting baffle of the limiting element extends from the inner wall of the valve body to the inside of the valve body.
7. A two-way flameproof valve for dust environment according to claim 6, characterized in that the magnetic force limit baffle ring is arranged at a position which is not at the same pipe diameter section of the valve body.
8. The bidirectional explosion-proof valve for the dust environment according to claim 7, further comprising a connecting flange fixedly arranged at two ends of the valve body so as to install the valve body on a dust removal pipeline of a powder-related process.
9. A two-way flame proof system for dust environment, it includes: the bidirectional explosion-proof valve comprises a valve body, a valve plate, compressed gas blowing openings and a limiting element, wherein the valve body is a pipeline which is communicated from front to back, the number of the compressed gas blowing openings is 2, the 2 compressed gas blowing openings are positioned in the same plane but opposite to each other in direction, and the compressed gas blowing openings are communicated inside the valve body; the method is characterized in that: the valve plate is pivotally and fixedly arranged inside the valve body; the magnetic valve comprises a valve body, a valve plate and a limiting element, wherein the valve plate is provided with a valve seat, the valve seat is provided with a valve plate, the valve plate is provided with a valve seat, the; the pressure difference sensor is electrically connected with the valve body and is used for monitoring the pressure difference between the upstream and downstream of the valve body in real time; the controller is electrically connected with the differential pressure sensor and the compressed gas blowing opening, when the value transmitted to the controller by the differential pressure sensor exceeds a set threshold value, the controller sends an opening signal to the compressed gas blowing opening, and then compressed air is sprayed out to close the valve plate.
10. The bidirectional explosion suppression system for the dust environment according to claim 9, further comprising a compressed gas pipeline and a compressed gas cylinder, wherein the compressed gas pipeline is communicated with the compressed gas injection port, and the compressed gas cylinder is communicated with the compressed gas pipeline to provide compressed gas to the compressed gas pipeline and then introduce the compressed gas into the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728409.XU CN210770481U (en) | 2019-10-16 | 2019-10-16 | Bidirectional explosion-proof valve and explosion-proof system for dust environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728409.XU CN210770481U (en) | 2019-10-16 | 2019-10-16 | Bidirectional explosion-proof valve and explosion-proof system for dust environment |
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| CN210770481U true CN210770481U (en) | 2020-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594463A (en) * | 2019-10-16 | 2019-12-20 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Bidirectional explosion-proof valve and explosion-proof system for dust environment |
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2019
- 2019-10-16 CN CN201921728409.XU patent/CN210770481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594463A (en) * | 2019-10-16 | 2019-12-20 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Bidirectional explosion-proof valve and explosion-proof system for dust environment |
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