Flame-quenching and self-closing delaying pressure-relief explosion-proof door

Abstract

The invention relates to a novel flame-quenching and self-closing delaying pressure-relief explosion-proof door and belongs to the field of explosion venting and explosion proofing. The pressure-relief explosion-proof door comprises a base, bolts, flanges, a wire mesh, foam ceramics, contact switches, guide rods, a top cover, springs, a time control switch, electromagnets and an explosion-proof sucking disc. According to the flame quenching attenuation overpressure integrated structure, the pressure of shock waves at the outlet of the pressure-relief explosion-proof door can be effectively reduced, so that the flame spread at the outlet is obviously weakened and even quenched. According to the delaying self-closed function, the flame and shock waves generated by combustion and explosion have sufficient time to be weakened, quenched and released. The opening time of a discharging outlet can be adjusted according to the requirements to cope with explosion accidents with different levels, and the application range is wide. The flame quenching attenuation overpressure integrated structure further can effectively prevent the occurrence of a tempering phenomenon, and the integrated design structure is adopted, so that mounting, disassembling and replacement in the using process are all quite convenient.

Description

technical field [0001] The invention relates to a novel quenching flame delay self-closing pressure relief explosion-proof door, which belongs to the field of explosion-relief and explosion-proof. Background technique [0002] Pressure-resistant equipment such as pressure pipes and pressure vessels are very common equipment in the modern industrial production process. During the use of such equipment, the interior is always in a large overpressure state, especially for storing and transporting some flammable gases and dust. During the process, explosion accidents often occur due to exceeding the pressure threshold. Pressure relief explosion-proof door is an important equipment to prevent such accidents and reduce accident disasters. [0003] At present, all kinds of pressure-resistant equipment used by enterprises such as coal mines, thermal power plants, and various chemical plants are equipped with explosion-proof doors. At present, there are mainly the following types o...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of uncontrollable pressure relief time of the existing pressure relief explosion-proof door, which leads to secondary explosion, and the inability to quench the flame and attenuate the shock wave overpressure at the outlet, and provide a self-closing pressure relief explosion-proof door with quenching flame delay

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