Dust explosion suppression device based on flow and vibration coupling excitation
A dust explosion and explosion-proof technology, which is applied to valve devices, engine components, safety valves, etc., can solve problems such as transmission, secondary dust explosion disasters, and insufficient closing response time of active explosion-proof valves
Active Publication Date: 2021-06-11
GUANGZHOU SPECIAL MECHANICAL & ELECTRICAL EQUIP INSPECTION & RES INST
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Problems solved by technology
Although the frequency of dust explosion disaster accidents has been effectively suppressed in recent years, they still occur occasionally. The possible reason is that when the flame detection device near the explosion-proof device obtains the explosion signal, the response time left for the traditional active explosion-proof valve to close is insufficient. , before the valve is completely closed, the flame escapes, causing the flame to spread along the pipeline to the adjacent enclosure, resulting in the occurrence of secondary dust explosion disasters
Method used
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[0022] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.
[0023] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
[0024] I...
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The invention discloses a dust explosion suppression device based on flow and vibration coupling excitation, and relates to the technical field of dust explosion prevention. The dust explosion suppression device comprises: a shell provided with an outlet and an inlet for ventilation and dust removal; an explosion-proof part comprising an explosion-proof turning plate which is arranged in the shell; a connecting part comprising a first fixing cylinder and a first connecting piece, wherein the first fixing cylinder is fixed in the shell, the first connecting piece can axially move on the first fixing cylinder, and the first connecting piece is movably connected with the explosion-proof turning plate; and a driving part installed on the first fixing cylinder and comprising a vibration sensor and a flow sensor. Under the triggering action of the vibration sensor or the flow sensor, a pusher is arranged in the driving part to push the first connecting piece to move towards the inner wall of the shell, and therefore the explosion-proof turning plate closes the shell before explosion flames come into the shell, and the purpose of dust explosion disaster reduction control is effectively achieved.
Description
technical field [0001] The invention relates to the technical field of dust explosion protection, in particular to a dust explosion explosion-proof device activated based on flow and vibration coupling activation. Background technique [0002] The active explosion-proof device is a dust explosion protection product commonly used by powder explosion-related enterprises. It mainly obtains signals through dust explosion information detection devices such as flames to confirm whether a dust explosion has occurred, thereby triggering the closure of the valve of the active explosion-proof device. Although the frequency of dust explosion disaster accidents has been effectively suppressed in recent years, they still occur occasionally. The possible reason is that when the flame detection device near the explosion-proof device obtains the explosion signal, the response time left for the traditional active explosion-proof valve to close is insufficient. , the flame escaped before the ...
Claims
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Login to View More IPC IPC(8): F16K17/36F16K37/00A62C4/00
CPCF16K17/363F16K37/00A62C4/00
Inventor 丁建旭刘柏清蒋漳河王新华王继业王彦杨娟陈钰方
Owner GUANGZHOU SPECIAL MECHANICAL & ELECTRICAL EQUIP INSPECTION & RES INST