CN211059431U - Active bidirectional explosion-proof quick gate valve - Google Patents
Active bidirectional explosion-proof quick gate valve Download PDFInfo
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- CN211059431U CN211059431U CN201922235189.3U CN201922235189U CN211059431U CN 211059431 U CN211059431 U CN 211059431U CN 201922235189 U CN201922235189 U CN 201922235189U CN 211059431 U CN211059431 U CN 211059431U
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Abstract
The utility model relates to an active bidirectional explosion-proof fast gate valve, which comprises a valve body, a movable plug board, a differential pressure sensor, a cylinder, a gas generator, a compressed gas cylinder and a controller, wherein the valve body comprises a reference valve body and an additional valve body, and the movable plug board is connected with a track in the valve body in a sliding way; the differential pressure sensors are arranged on two sides of the movable plugboard; the cylinder is arranged at the top of the additional valve body, and the movable inserting plate is welded with a piston rod of the movable inserting plate; the gas generator is communicated with a rodless cavity of the cylinder, and the compressed gas cylinder is respectively communicated with the rodless cavity and the rod cavity of the cylinder; the rodless cavity and the rod cavity of the cylinder are respectively connected with an air outlet electromagnetic valve; the outlet of the gas generator is connected with a quick-opening valve, and the differential pressure sensor, the gas generator, the gas inlet electromagnetic valve and the quick-opening valve are electrically connected with the controller. The utility model discloses an utilize pressure differential change quick, initiative closed picture peg, gravity and the cylinder through portable picture peg in huge pressure dual spacing locking guarantee picture peg closed state, reach quick flame proof's purpose.
Description
Technical Field
The utility model belongs to the technical field of dust explosion flame proof device, especially, relate to a quick push-pull valve of active two-way flame proof.
Background
In recent years, dust explosion events frequently occur, and great threats are caused to powder-related enterprises in various regions. When explosion happens, explosion pressure waves and flame can spread along the air pipe to cause secondary explosion, and if measures are not taken quickly in time, huge personnel and property losses can be brought. In order to reduce the harm of dust explosion as much as possible, explosion is usually blocked in a certain range by using an explosion-proof valve, but most of the explosion-proof valves in the market are one-way explosion-proof valves, only the explosion at the dust remover end can be blocked, and the explosion at the process end cannot play any role; at present, a floating ball type bidirectional explosion-proof valve also exists in the market, but the floating ball type bidirectional explosion-proof valve has a large influence on air flow in a pipeline, and provides higher requirements for the air quantity of a fan, so that unnecessary energy consumption is increased. Compare in mechanical flame proof flap valve and ball-cock assembly on the existing market, the pipeline one side pressure that explodes sharply risees, and at this moment the flap valve is closed and is turned over the board, the ball-cock assembly extrudees the floater to pipeline one side cross section, and such operation leads to explosion side pressure release back pressure to reduce the back and turns over the board and open (being inhaled and open), the floater resets very easily, but explosive environment still exists in the pipeline this moment, and the secondary that probably explodes spreads, brings bigger danger. In addition, the common explosion-proof valve is mechanical explosion-proof and belongs to passive explosion-proof, so that the active bidirectional explosion-proof valve can give effective response in a shorter time, and has important significance for improving the reliability of explosion isolation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art exists, the utility model provides a quick push-pull valve of active two-way flame proof, pressure differential sensor detects the pressure differential that the utmost point speed changes and initiative quick closed picture peg when the arbitrary side explosion of push-pull valve takes place, and gravity and the dual spacing locking of huge pressure in the cylinder through portable picture peg guarantee the picture peg closed state, reach the purpose of quick flame proof.
An active bidirectional explosion-proof quick gate valve comprises a valve body, a movable plug board, a differential pressure sensor, a cylinder, a gas generator, a compressed gas cylinder and a controller, wherein the valve body comprises a reference valve body arranged on a dust removal air pipe and an additional valve body positioned at the upper part of the reference valve body; the movable inserting plate is connected with the track in a sliding manner; the differential pressure sensor is arranged on two sides of the movable inserting plate on the dust removing air pipe; the cylinder is arranged at the top of the additional valve body, and the movable inserting plate is welded with a piston rod of the cylinder; the gas generator is communicated with a rodless cavity of the cylinder through an air inlet electromagnetic valve by adopting a high-temperature and high-pressure resistant pipe fitting, and the compressed gas cylinder is respectively communicated with the rodless cavity and a rod cavity of the cylinder through the air inlet electromagnetic valve by adopting the high-temperature and high-pressure resistant pipe fitting; the differential pressure sensor, the gas generator and the gas inlet electromagnetic valve are electrically connected with the controller; the air cylinder rodless cavity and the rod cavity are respectively provided with an air outlet and are connected with an air outlet electromagnetic valve of the air cylinder rod cavity and an air outlet electromagnetic valve of the air cylinder rodless cavity; the high-temperature and high-pressure resistant pipe fitting at the outlet of the gas generator is connected with a quick-opening valve which is electrically connected with the controller.
And a sealing piece is arranged in the track of the valve body and is a sealing wool top.
The actual distance between the differential pressure sensor and the movable plug board is determined according to specific process parameters.
And the compressed gas in the compressed gas cylinder is inert gas.
The utility model has the advantages that: the utility model discloses a gas generator, compressed gas cylinder and portable picture peg's design, can be when arbitrary side of picture peg valve takes place the explosion in the dust removal tuber pipe, the controller responds fast, and control gas generator produces high-pressure gas in the twinkling of an eye, combines compressed gas effectively to obstruct the explosion of arbitrary side of picture peg valve, reduces the influence scope of explosion to reach the purpose of quick flame proof; compared with the prior product, the utility model, have following advantage: (1) the explosion suppression can be effectively and actively performed, and the dust removal air pipe can be blocked no matter which side is exploded, so that the purpose of bidirectional explosion suppression is achieved; (2) the device of the utility model can be installed on horizontal, vertical and inclined pipelines; (3) the device of the utility model has the advantages of simple structure, quick response, quick action and quick explosion suppression.
Drawings
Fig. 1 is a schematic connection diagram of a use state of the present invention provided by an embodiment;
fig. 2 is a schematic view of the opening state of the middle flashboard valve of the utility model;
FIG. 3 is a schematic diagram of the state of the middle inserting plate in the process of opening the valve;
FIG. 4 is a schematic view of the closing state of the middle gate valve of the present invention;
wherein the content of the first and second substances,
the gas generator comprises a controller 1, a gas generator 2, a compressed gas cylinder 3, a differential pressure sensor 4, a cylinder 5, an additional valve body 6, a reference valve body 7, a movable plug board 8, a quick-opening valve 9, a rodless cavity gas outlet electromagnetic valve 10, a rod cavity gas outlet electromagnetic valve 11 and a sealing box 12.
Detailed Description
For better explanation of the present invention, the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings for better understanding.
As shown in figure 1, an active bidirectional explosion-proof quick gate valve comprises a valve body, a movable gate 8, a differential pressure sensor 4, a cylinder 5, a gas generator 2, a compressed gas cylinder 3 and a controller 1, wherein the valve body comprises a reference valve body 7 installed on a dust removal air pipe and an additional valve body 6 located on the upper portion of the reference valve body 7, the reference valve body 7 and the additional valve body are of an integrally formed structure, an inwards concave track is arranged along a frame inside the valve body, a sealing piece is arranged inside the track and is a sealing wool strip, the movable gate 8 is connected with the track in a sliding mode, the differential pressure sensor 4 is installed on two sides of the movable gate 8 on a dust removal air pipe, the pressure difference between the upper portion and the lower portion of the dust removal air pipe is monitored in real time, the actual distance between the differential pressure sensor 4 and the movable gate 8 is determined according to specific technological parameters, namely total delay time (sum of mechanical delay and electrical delay) for gate closing of the gate and the air speed, and the air speed of actual working condition, connection indicating lamps need to be arranged at multiple positions on the dust removal air pipe rods of the dust removal air pipe, the controller 1 sends out a gate valve 4, the gate valve 4 sends out a gate closing instruction, the gate valve is connected with a high-speed sensor, the high-pressure-resistant air cylinder 5, the high-resistant gas cylinder is calculated by high-pressure-resistant gas cylinder, the high-pressure gas-resistant gas cylinder, the high-resistant gas cylinder-resistant gas-pressure gas-resistant gas-gas.
The compressed gas in the compressed gas bottle 3 is inert gas, the compressed gas in the embodiment is nitrogen, the controller 1 is electrically connected with the differential pressure sensor 4, the gas generator 2 and the electromagnetic valve, and the controller 1 can be an explosion-proof box body, a P L C, DSP or an ARM controller.
The intake port solenoid valve in this embodiment is mounted on the surface of the cylinder 5 and covered with a seal case 12.
As shown in fig. 3-4, the quick explosion-proof method for the active bidirectional explosion-proof quick gate valve specifically includes the following steps:
(1) arrangement of compressed gas
After the controller 1 receives a signal that the value of the differential pressure sensor 4 on any side is increased at the highest speed or exceeds a set threshold value, the controller 1 sends an instruction to the gas generator 2, the quick opening valve 9, the gas inlet electromagnetic valve and the gas outlet electromagnetic valve 11 of the rod cavity of the cylinder are opened, compressed gas in the compressed gas cylinder 3 rapidly enters the rodless cavity of the cylinder 5, at the moment, a booster tube in an igniting assembly of the gas generator 2 ignites explosives and gas generating agents to generate high-temperature high-pressure gas flow to be filled in the rodless cavity of the cylinder 5, the compressed gas is heated and the pressure of the high-temperature high-pressure gas flow is increased, and the piston rod in the cylinder 5 moves downwards due to huge pressure;
(2) without provision of compressed gas
After the controller 1 receives a signal that the value of the differential pressure sensor 4 on any side is increased at the highest speed or exceeds a set threshold value, the controller 1 sends an instruction to the gas generator 2, the quick-opening valve 9 and the gas inlet electromagnetic valve on the branch of the gas generator, the rod cavity gas outlet electromagnetic valve 11 of the cylinder, the quick-opening valve 9, the gas inlet electromagnetic valve and the rod cavity gas outlet electromagnetic valve 11 of the cylinder are opened, a booster tube in an ignition assembly of the gas generator 2 ignites explosives and gas generating agents to generate high-temperature high-pressure gas flow to be filled into the cylinder 5, and the movable inserting plate 8 is extruded downwards by huge pressure to be closed quickly.
When the gate valve 8 is required to be opened as shown in fig. 2, the controller 1 sends an instruction to the air inlet electromagnetic valve on the connecting branch of the compressed air cylinder 3 and the air cylinder 5 and the air outlet electromagnetic valve 10 of the rodless cavity of the air cylinder, the air inlet electromagnetic valve is opened, the air in the compressed air cylinder 3 rushes into the rod cavity in the air cylinder 5 to drive the piston rod to move upwards, the movable gate 8 is brought into the additional valve body 6, and the movable gate moves upwards stably in the track in the process.
Claims (4)
1. An active bidirectional explosion-proof quick gate valve is characterized in that: the dust removal air pipe valve comprises a valve body, a movable plug board, a differential pressure sensor, an air cylinder, a gas generator, a compressed air cylinder and a controller, wherein the valve body comprises a reference valve body arranged on a dust removal air pipe and an additional valve body positioned on the upper part of the reference valve body; the movable inserting plate is connected with the track in a sliding manner; the differential pressure sensor is arranged on two sides of the movable inserting plate on the dust removing air pipe; the cylinder is arranged at the top of the additional valve body, and the movable inserting plate is welded with a piston rod of the cylinder; the gas generator is communicated with a rodless cavity of the cylinder through an air inlet electromagnetic valve by adopting a high-temperature and high-pressure resistant pipe fitting, and the compressed gas cylinder is respectively communicated with the rodless cavity and a rod cavity of the cylinder through the air inlet electromagnetic valve by adopting the high-temperature and high-pressure resistant pipe fitting; the differential pressure sensor, the gas generator and the gas inlet electromagnetic valve are electrically connected with the controller; the air cylinder rodless cavity and the rod cavity are respectively provided with an air outlet and are connected with an air outlet electromagnetic valve of the air cylinder rod cavity and an air outlet electromagnetic valve of the air cylinder rodless cavity; the high-temperature and high-pressure resistant pipe fitting at the outlet of the gas generator is connected with a quick-opening valve which is electrically connected with the controller.
2. An active bidirectional explosion-proof quick gate valve according to claim 1, characterized in that: and a sealing piece is arranged in the track of the valve body and is a sealing wool top.
3. An active bidirectional explosion-proof quick gate valve according to claim 1, characterized in that: the actual distance between the differential pressure sensor and the movable plug board is determined according to specific process parameters.
4. An active bidirectional explosion-proof quick gate valve according to claim 1, characterized in that: and the compressed gas in the compressed gas cylinder is inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922235189.3U CN211059431U (en) | 2019-12-13 | 2019-12-13 | Active bidirectional explosion-proof quick gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922235189.3U CN211059431U (en) | 2019-12-13 | 2019-12-13 | Active bidirectional explosion-proof quick gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211059431U true CN211059431U (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922235189.3U Active CN211059431U (en) | 2019-12-13 | 2019-12-13 | Active bidirectional explosion-proof quick gate valve |
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| CN (1) | CN211059431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848439A (en) * | 2019-12-13 | 2020-02-28 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Active bidirectional explosion-proof quick gate valve and quick explosion-proof method |
| CN112855967A (en) * | 2021-03-12 | 2021-05-28 | 北京联袂义齿技术有限公司 | Gate valve for false tooth dust removal |
-
2019
- 2019-12-13 CN CN201922235189.3U patent/CN211059431U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848439A (en) * | 2019-12-13 | 2020-02-28 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Active bidirectional explosion-proof quick gate valve and quick explosion-proof method |
| CN112855967A (en) * | 2021-03-12 | 2021-05-28 | 北京联袂义齿技术有限公司 | Gate valve for false tooth dust removal |
| CN112855967B (en) * | 2021-03-12 | 2022-09-16 | 北京联袂义齿技术有限公司 | Gate valve for false tooth dust removal |
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