Stamping embedded hard sealing nuclear power air valve

Abstract

The invention relates to a stamping embedded hard sealing nuclear power air valve which is technically characterized in that the front side and the rear side of an upper frame and a lower frame are respectively punched and embedded and connected with corresponding valve seats, the upper and the lower frames and a left and a right side frame are connected with internal angle iron through pulling rivets to form a valve body framework, eight corners of the valve frame are respectively punched and embedded and connected with corresponding connecting angle iron; and a valve plate comprises more than three blades and corresponding rotating shafts thereof, each blade is composed of a pair of symmetrical front and rear corrugated sheets and a pair of upper and lower elastic sheet sealing strips, the upper and the lower elastic sheet sealing strips are respectively clamped between upper and lower end parts of the front and the rear corrugated sheets, the front and the rear corrugated sheets are punched and embedded and connected, and the front and the rear corrugated sheets are punched and embedded and connected with the upper and the lower elastic sheet sealing strips. The invention has the advantage that the connection of the valve sheets does not generate stress and structure deformation and damage to the surfaces of the sheets.

Description

technical field [0001] The invention relates to a stamping-embedded hard-sealed nuclear power air valve in which a valve body and a valve plate are respectively stamped and embedded. Background technique [0002] With the rapid expansion and development of the nuclear power market in recent years, the demand for nuclear power air valves is increasing. Among them, the balance valve in the air duct system is the most used. The balance valve includes a valve body, a valve seat, a valve plate and a transmission. Mechanism; the valve body includes upper and lower frames and left and right frames, and the transmission mechanism includes a linkage mechanism, a handle and a locking mechanism; the linkage mechanism includes main and auxiliary linkages and a rocker arm. The material of the valve body and the valve plate is galvanized steel; the valve body is composed of upper and lower frames and left and right frames welded; the upper and lower frames and the valve seat are pressure ...

AI Technical Summary

Problems solved by technology

[0004] (1) Due to the welding process, the valve body generates thermal stress and is easily deformed;

[0005] (2) Vibration after welding causes internal changes in the material and affects performance;

[0006] (3) Due to pressure welding, the surface coating will be damaged after welding;

[0007] (4) It is not easy to correct after deformation, and it is easy to cause open welding after correction

[0008] (5) Non-destructive testing is required (one by one);

[0009] (6) It is not easy to handle after the coating is damaged, it needs to be brushed and sprayed, but it is easy to fall off after spraying

[0010] (7) High cost and heavy workload

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