Floating valve bracket structure of steam turbine

Abstract

The invention discloses a floating valve bracket structure of a steam turbine. The floating valve bracket structure of the steam turbine comprises an adjusting screw, a valve support plate, a strut, a casing pipe, a spring cover plate, a spring bottom plate and a combined spring. The adjusting screw is arranged at the top of a floating bracket, the upper part of the adjusting screw is connected with the valve support plate, and the bottom of the adjusting screw is connected with the top of the strut; the strut is installed in the casing pipe, the bottom of the strut is in contact with a bottom block on the bottom of the casing pipe, the upper end of the casing pipe is welded on the inner wall of the spring cover plate, the casing pipe penetrates the combined spring, and the bottom of the casing pipe is arranged at the position of a central hole in the spring bottom plate and has a certain gap relative to the spring bottom plate; a cushion block is welded on the bottom of the casing pipe, and the bottom block is directly arranged on the cushion block; the combined spring is positioned between the spring cover plate and the spring bottom plate, and stay bolts are arranged on the four corners of the spring bottom plate and the spring cover plate. The floating valve bracket structure of the steam turbine has a simple structure, is advanced and novel in design, and effectively solves the problem of valve supports arranged on both sides of a cylinder is effectively solved.

Description

technical field [0001] The invention relates to a steam turbine valve support device, in particular to a steam turbine floating valve support structure. Background technique [0002] As we all know, the valve is an important and indispensable part of the steam turbine system. It is not only required to quickly block the high-pressure steam under abnormal conditions, but also to adjust the intake flow of the unit according to the load demand. Therefore, the requirements for the valve housing are very high. The valve housing design At the same time, the valve has a series of valve core parts and oil motors to realize its functions. The overall valve weight is between 30T~60T. Only through the valve bracket or hanger structure can the gravity be transmitted to the equipment foundation. The valve and the cylinder are respectively connected to both ends of the pipeline. During normal operation, the valve will bear the thermal displacement and pipeline force transmitted by the pip...

AI Technical Summary

Problems solved by technology

Since there is a very long pipeline between the high-pressure main steam valve B and the high-pressure cylinder F, there are several elbows from the outlet of the high-pressure main steam valve B to the inlet of the high-pressure cylinder F, which not only increases the manufacturing cost, but also increases the pipeline flow loss of the air flow. Reduced steam quality

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