Pressure relief valve
A pressure relief valve and pressure technology, applied in the field of pressure relief valves, can solve problems such as the validity verification and real-time detection of the working state of pressure relief valves, so as to prevent misoperation or action deviation, ensure reliability and accuracy, and satisfy visualization Effect
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[0018] The novel pressure release valve of the present invention is described in detail below in conjunction with the accompanying drawings:
[0019] see figure 1 and figure 2 As shown, the pressure relief valve provided by the present invention connects the pressure relief valve with the transformer oil tank body through the valve seat 1 . When the transformer is in operation, the cavity of the valve seat 1 communicates with the inside of the transformer oil tank. The transformer oil tank oil is sealed at the bottom of the cover 2 by the first spring 3 and the second spring 4. When an accident occurs inside the oil-immersed transformer, the oil pressure inside the transformer oil tank rises sharply and reaches the opening pressure value of the pressure relief valve. Quickly open within 2ms, the cover 2 pops up, driving the sign bar 8 and the sign cap 7 to be lifted up, at the same time the electrical switch 9 acts to send an alarm signal, the first spring 3 and the second ...
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