CN210661544U - One-way explosion-proof valve for explosive dust environment - Google Patents
One-way explosion-proof valve for explosive dust environment Download PDFInfo
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- CN210661544U CN210661544U CN201921800456.0U CN201921800456U CN210661544U CN 210661544 U CN210661544 U CN 210661544U CN 201921800456 U CN201921800456 U CN 201921800456U CN 210661544 U CN210661544 U CN 210661544U
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- isolation box
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- pipe
- corrugated pipe
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Abstract
The utility model discloses a one-way explosion-proof valve used in explosive dust environment, which comprises an isolation box, a corrugated pipe, a valve clack and a guide rod; an isolation box: the left end interface of the isolation box is connected with a connecting pipe, the right end interface of the isolation box is connected with an insertion pipe, the left end surface of the insertion pipe is inclined, and flanges are connected to the insertion pipe and one end of the connecting pipe, which is far away from the isolation box; corrugated pipe: the corrugated pipe is fixed in the inner cavity of the connecting pipe, a cross fixing frame is fixed on the right end face of the corrugated pipe, a vertical rod in the vertical direction is fixed at the center of the cross fixing frame, and a connecting rod is fixed at the upper end of the vertical rod; a guide rod: two ends of the guide rod are fixed at the upper end of the inner cavity of the isolation box, the middle part of the guide rod is connected with a buckling rod in a sliding mode, and the upper end of the buckling rod is fixedly connected with the right end of the connecting rod; this a one-way flame proof valve for explosive dust environment, simple structure triggers the convenience, can carry out quick trigger formula to the pipeline and keep apart, and the reaction is rapid, convenient to use.
Description
Technical Field
The utility model relates to a flame proof valve technical field specifically is a one-way flame proof valve for explosive dust environment.
Background
The dust explosion is easy to occur in the industries of grain and agricultural product dust, metal dust, coal dust, pharmaceutical engineering powder, petrochemical industry dust, textile industry fiber, wood processing and the like, along with the continuous expansion of production scale and the development of fine powder processing, dust explosion accidents in China show a tendency of frequently generating explosion-proof valves, and the explosion-proof valves are prevented from passing through special design, can prevent pressure waves and flames from spreading from process equipment of dust explosion to other process equipment along an installation pipeline to generate destructive influence, isolate the explosion at local parts, and reduce the loss caused by the inevitable dust explosion accidents to the minimum, but the existing explosion-proof valves are complex to control and trigger, and the stability needs to be improved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a one-way flame proof valve for explosive dust environment, simple structure triggers the convenience, can carry out quick trigger formula to the pipeline and keep apart, and the reaction is rapid, and convenient to use can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a one-way explosion-proof valve for explosive dust environment comprises an isolation box, a corrugated pipe, a valve clack and a guide rod;
an isolation box: the left end interface of the isolation box is connected with a connecting pipe, the right end interface of the isolation box is connected with an insertion pipe, the left end surface of the insertion pipe is inclined, and flanges are connected to the insertion pipe and one end of the connecting pipe, which is far away from the isolation box;
corrugated pipe: the corrugated pipe is fixed in the inner cavity of the connecting pipe, a cross fixing frame is fixed on the right end face of the corrugated pipe, a vertical rod in the vertical direction is fixed at the center of the cross fixing frame, and a connecting rod is fixed at the upper end of the vertical rod;
a guide rod: two ends of the guide rod are fixed at the upper end of the inner cavity of the isolation box, the middle part of the guide rod is connected with a buckling rod in a sliding mode, and the upper end of the buckling rod is fixedly connected with the right end of the connecting rod;
valve clack: the upper end of the valve clack is hinged with the upper end of the right side surface of the inner cavity of the isolation box through a hinge, a flat hook matched with the buckling rod is fixed on the left side surface of the valve clack, a sliding shaft is fixed on the side surface of the valve clack, and a sliding groove in sliding connection with the sliding shaft is arranged on the rear side wall of the isolation box;
wherein: still include the access door, the access door passes through the uncovered department in the upper end of bolted connection at the shielded box.
Further, the bellows is the toper bellows, and the left end internal diameter of bellows is greater than its right-hand member internal diameter, and the axial displacement who produces when receiving the impact through the bellows is as trigger force.
Further, the valve clack includes the steel sheet of rectangle, the upper end and the hinged joint of steel sheet, the side of steel sheet is fixed with the flange with intubate left end face complex, and the flange is detained in the intubate, guarantees closed leakproofness.
Furthermore, the buckling rod comprises an L-shaped rod body, the guide rod penetrates through a shaft hole in the upper end of the vertical part of the rod body, a pulley is installed on the horizontal part of the lower side of the rod body, the flat hook is released through translation of the buckling rod, and the pulley can weaken the friction force with the flat hook to ensure the releasing sensitivity.
Furthermore, the device also comprises a shock pad, wherein the shock pad is fixed in a gap at the inner side end of the insertion tube, and the shock pad absorbs the shock generated when the valve clack is closed, so that the closing stability is ensured.
Compared with the prior art, the beneficial effects of the utility model are that: this a one-way flame proof valve for explosive dust environment has following benefit:
1. the one-way explosion-proof valve for the explosive dust environment is simple in structure, adopts the conical corrugated pipe, takes the axial displacement generated when the corrugated pipe is impacted as the trigger force, is convenient to trigger, can quickly trigger and isolate a pipeline, is quick in response, can isolate the influence of explosion, and reduces the loss generated by pipeline accidents;
2. through the flexible direction of cross mount and guide bar restriction bellows, guarantee the stability of having an effect, the suspension type valve clack is closed through the dead weight, and closing speed is fast, does not cause to separate the fender to the pipeline simultaneously, excellent in use effect.
Drawings
FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;
fig. 2 is an enlarged schematic view of the a position of the present invention.
In the figure: the device comprises an isolation box 1, a connecting pipe 2, an insertion pipe 3, a corrugated pipe 4, a cross fixing frame 5, a longitudinal rod 6, a connecting rod 7, a valve clack 8, a steel plate 801, a convex plate 802, a buckle rod 9, a rod body 901, a pulley 902, a guide rod 10, a flange 11, a flat hook 12, a sliding groove 13, a hinge 14, an access door 15, a shock pad 16 and a sliding shaft 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a one-way explosion-proof valve for explosive dust environment comprises an isolation box 1, a corrugated pipe 4, a valve clack 8 and a guide rod 10;
an isolation box 1: the left end interface of the isolation box 1 is connected with a connecting pipe 2, the right end interface of the isolation box 1 is connected with an insertion pipe 3, the left end surface of the insertion pipe 3 is inclined, the insertion pipe 3 and one end of the connecting pipe 2, which is far away from the isolation box 1, are both connected with a flange 11, the isolation box further comprises a shock pad 16, and the shock pad 16 is fixed in a gap at the inner side end of the insertion pipe 3;
the corrugated pipe 4: the corrugated pipe 4 is fixed in the inner cavity of the connecting pipe 2, the corrugated pipe 4 is a conical corrugated pipe, the inner diameter of the left end of the corrugated pipe 4 is larger than that of the right end of the corrugated pipe, a cross fixing frame 5 is fixed on the right end face of the corrugated pipe 2, a vertical rod 6 in the vertical direction is fixed at the center of the cross fixing frame 5, and a connecting rod 7 is fixed at the upper end of the vertical rod 6;
the guide rod 10: the two ends of a guide rod 10 are fixed at the upper end of the inner cavity of the isolation box 1, the middle part of the guide rod 10 is connected with a buckling rod 9 in a sliding manner, the upper end of the buckling rod 9 is fixedly connected with the right end of a connecting rod 7, the buckling rod 9 comprises an L-shaped rod body 901, the guide rod 10 penetrates through a shaft hole in the upper end of the vertical part of the rod body 901, a pulley 902 is arranged at the horizontal part of the lower side of the rod body 901, the telescopic direction of the corrugated pipe 10 is limited through a cross fixing frame 5 and the guide rod 10, the stability of acting force is ensured, the suspension type valve clack is closed through self weight, the closing speed is;
the valve flap 8: the upper end of the valve flap 8 is hinged with the upper end of the right side surface of the inner cavity of the isolation box 1 through a hinge, a flat hook 12 matched with the buckling rod 9 is fixed on the left side surface of the valve flap 8, a sliding shaft 17 is fixed on the side surface of the valve flap 8, a sliding groove 13 in sliding connection with the sliding shaft 17 is arranged on the rear side wall of the isolation box 17, the valve flap 8 comprises a rectangular steel plate 801, the upper end of the steel plate 801 is connected with the hinge 14, and a convex plate 802 matched with the left end surface of the insertion pipe 3 is fixed on the side surface of the;
wherein: the isolation box further comprises an access door 15, and the access door 15 is connected to the upper end opening of the isolation box 1 through bolts.
This a one-way flame proof valve for explosive dust environment, simple structure chooses conical bellows 4 for use, and the axial displacement who produces when receiving the impact through bellows 4 is as triggering power, triggers the convenience, can carry out quick trigger formula to the pipeline and keep apart, and the reaction is rapid, can cut off the explosion influence, reduces the loss that the pipeline accident produced.
When in use: the isolation box 1 is connected in series in a dust pipeline through a connecting pipe 2 and an insertion pipe 3, airflow passes through the connecting pipe 2 and goes right to the insertion pipe 3, a corrugated pipe 4 is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction, pressure is converted into displacement or force, a conical corrugated pipe is selected, high-pressure airflow generated by explosion moves right to impact the left conical surface of the corrugated pipe 4, a cross fixing frame 5, a longitudinal rod 6, a connecting rod 7 and a buckle rod 9 synchronously move right under the guidance of a guide rod 10, the horizontal part of the lower end of the buckle rod 9 is separated from a flat hook 12 of a valve clack 8, the valve clack 8 is released, a sliding shaft 17 slides downwards along an arc-shaped sliding groove 13, the valve clack 8 downwards overturns along a hinge 14 due to dead weight, a convex plate 802.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a one-way flame proof valve for explosive dust environment which characterized in that: comprises an isolation box (1), a corrugated pipe (4), a valve flap (8) and a guide rod (10);
isolation box (1): the left end interface of the isolation box (1) is connected with a connecting pipe (2), the right end interface of the isolation box (1) is connected with an insertion pipe (3), the left end surface of the insertion pipe (3) is inclined, and flanges (11) are connected to the insertion pipe (3) and one end of the connecting pipe (2) far away from the isolation box (1);
bellows (4): the corrugated pipe (4) is fixed in the inner cavity of the connecting pipe (2), a cross fixing frame (5) is fixed on the right end face of the corrugated pipe (4), a vertical rod (6) in the vertical direction is fixed at the center of the cross fixing frame (5), and a connecting rod (7) is fixed at the upper end of the vertical rod (6);
guide bar (10): two ends of the guide rod (10) are fixed at the upper end of the inner cavity of the isolation box (1), the middle part of the guide rod (10) is connected with a buckling rod (9) in a sliding manner, and the upper end of the buckling rod (9) is fixedly connected with the right end of the connecting rod (7);
valve flap (8): the upper end of the valve flap (8) is hinged with the upper end of the right side surface of the inner cavity of the isolation box (1) through a hinge, a flat hook (12) matched with the buckling rod (9) is fixed on the left side surface of the valve flap (8), a sliding shaft (17) is fixed on the side surface of the valve flap (8), and a sliding groove (13) in sliding connection with the sliding shaft (17) is formed in the rear side wall of the isolation box (1);
wherein: still include access door (15), open mouth department in the upper end of access door (15) through bolted connection at isolation box (1).
2. The one-way explosion-proof valve for explosive dust environment according to claim 1, characterized in that: the corrugated pipe (4) is a conical corrugated pipe, and the inner diameter of the left end of the corrugated pipe (4) is larger than that of the right end of the corrugated pipe.
3. The one-way explosion-proof valve for explosive dust environment according to claim 1, characterized in that: the valve clack (8) comprises a rectangular steel plate (801), the upper end of the steel plate (801) is connected with the hinge (14), and a convex plate (802) matched with the left end face of the insertion pipe (3) is fixed on the side face of the steel plate (801).
4. The one-way explosion-proof valve for explosive dust environment according to claim 1, characterized in that: the buckling rod (9) comprises an L-shaped rod body (901), the guide rod (10) penetrates through a shaft hole in the upper end of the vertical part of the rod body (901), and a pulley (902) is installed on the horizontal part of the lower side of the rod body (901).
5. The one-way explosion-proof valve for explosive dust environment according to claim 1, characterized in that: the medical intubation tube is characterized by further comprising a shock pad (16), wherein the shock pad (16) is fixed in a notch of the inner side end of the intubation tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800456.0U CN210661544U (en) | 2019-10-17 | 2019-10-17 | One-way explosion-proof valve for explosive dust environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800456.0U CN210661544U (en) | 2019-10-17 | 2019-10-17 | One-way explosion-proof valve for explosive dust environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661544U true CN210661544U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921800456.0U Active CN210661544U (en) | 2019-10-17 | 2019-10-17 | One-way explosion-proof valve for explosive dust environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210661544U (en) |
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2019
- 2019-10-17 CN CN201921800456.0U patent/CN210661544U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 276000 Pangu Tiandi 300 meters east of the intersection of Jinhua Road and Customs Road, Linyi Economic Development Zone, Shandong Province Patentee after: Shandong Mingyi Electric Technology Co.,Ltd. Address before: 276100 south section of Jinli Road, zhizidun office, Linyi Economic Development Zone, Shandong Province Patentee before: Shandong Mingyi Electric Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230321 Address after: Building 3, Pangu Tiandi Industrial Park, Jinhua Road, Zhimadun Street, Economic and Technological Development Zone, Linyi City, Shandong Province 276000 Patentee after: Green Environmental Protection Technology (Shandong) Co.,Ltd. Address before: 276000 Pangu Tiandi, 300 meters east of the intersection of Jinhua Road and Customs Road, Linyi Economic Development Zone, Shandong Province Patentee before: Shandong Mingyi Electric Technology Co.,Ltd. |