Novel large petroleum gate valve

Abstract

The invention relates to the technical field of valves, in particular to a novel large petroleum gate valve. The novel large petroleum gate valve is characterized by comprising a gate plate, a cooling circulation flow channel, a cooling flow channel, a spring return seat, a lower rebound hammer, a spring, a linkage flow channel rod, a hollow upper valve rod, an upper valve rod inner pipe, a cooling water inlet, an induction pipe, an induction switch, a bonnet, a valve body, a cooling water outlet, a lower flow channel, a seal, a valve seat, a valve rod, an induction master valve, a hand rod, a cooling tank, a cooling inner flow channel, a valve bracket, a bonnet inner chamber, an upper rebound hammer and a drainage switch. According to the novel large petroleum gate valve, the cooling flow channel is arranged on the right side in the valve body, and the cooling water is led to the cooling tank to flow to the upper valve rod inner pipe; one path of the cooling water flows from the cooling inner flow channel, flows through the lower flow channel and flows out of the cooling water outlet; and the other path of the cooling water flows in a manner that the cooling water in the cooling tank flows down under the control of the drainage switch from the upper valve rod inner pipe, pushes the upper rebound hammer, flows into the valve rod through the lower rebound hammer at the lower end of the spring and the spring return seat at the lower end of the spring, and flows into the cooling circulation flow channel around the gate plate through the valve rod to cool the gate plate.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a novel large-scale petrochemical gate valve. Background technique [0002] When the traditional valve is under high temperature, the high temperature in the valve body can easily cause the valve seal to fail, making the valve unusable. Contents of the invention [0003] In order to solve the above problems, the present invention provides a new type of large-scale petrochemical gate valve, which is characterized in that it includes: gate plate 1, cooling ring flow channel 2, cooling flow channel 3, spring return seat 4, Lower rebound hammer 5, spring 6, linkage runner rod 7, hollow upper valve rod 8, upper valve rod inner pipe 9, cooling water inlet 10, induction pipe 11, induction switch 12, valve cover 13, valve body 14, cooling outlet Nozzle 15, lower runner 16, seal 17, valve seat 18, valve stem 19, induction main valve 20, hand lever 21, cooling cabin 22, cooling internal ...

AI Technical Summary

Problems solved by technology

[0002] Under high temperature conditions of traditional valves, the high temperature in the valve body can easily cause the valve seal to fail, making the valve unusable.

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