Pressure release device, control method and explosion-proof fire-extinguishing protection system for oil-filled equipment

Abstract

The invention provides a pressure release device, a control method and an oil charging equipment explosionproof fire extinguishing protection system. The pressure release device comprises a pressure reducing shell, a pressure release body and a signal switch; the pressure reducing shell includes an inlet, a main pressure release port and an auxiliary pressure release port; the inlet is connected with oil charging equipment; the main pressure release port and the auxiliary pressure release port are used for discharging pressure in the pressure reducing shell; the pressure release body is arranged in the pressure reducing shell, can open or close the main pressure release port along with slow change of internal pressure of the pressure reducing shell, and can open the auxiliary pressure release port along with rapid change of the internal pressure in the pressure reducing shell; and the signal switch is arranged on the pressure reducing shell for sending a pressure release signal according to actions of the pressure release body. The process can realize timely pressure release for various pressure changes generated in the oil charging equipment, guarantees safety and reliability of the oil charging equipment, and is higher in practicability and wide in application range.

Description

technical field [0001] The invention relates to the technical field of pressure safety, in particular to a pressure release device, a control method and an explosion-proof fire extinguishing protection system for oil-filled equipment. Background technique [0002] During the use of oil-filled equipment, there are faults such as overload and grounding. These faults are likely to cause the pressure inside the oil-filled equipment to increase, and in serious cases, there will be dangers of combustion and explosion. [0003] The internal pressure increase caused by the failure of oil-filled equipment can be divided into the following two situations, namely: [0004] The first type is a slight failure of the equipment, which causes static pressure inside the oil-filled equipment, and the internal pressure of the oil-filled equipment rises slowly; [0005] The second type is a serious failure of the equipment, which causes shock and fluctuating pressure inside the oil-filled equi...

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Problems solved by technology

[0004] The first type is a slight failure of the equipment, which causes static pressure inside the oil-filled equipment, and the internal pressure of the oil-filled equipment rises slowly;

[0005] The second type is a serious failure of the equipment, which causes shock and fluctuating pressure inside the oil-filled equipment, and the internal pressure of the oil-filled equipment increases rapidly and violently;

[0006] At present, there is no technology that can solve these two kinds of pressure changes at the same time. Therefore, oil-filled equipment is facing the danger of explosion or even fire; in addition, for the fire protection of oil-filled equipment, water spray, water spray, Foam, their function is to extinguish the oil-filled equipment after a fire occurs in the oil-filled equipment. These methods cannot fundamentally prevent the explosion and fire of the oil-filled equipment.

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