High-temperature high-pressure steam split-ranging valve control device

A high-temperature, high-pressure, valve control technology, applied in the direction of the valve device, valve operation/release device, valve lift, etc., can solve the problems of increasing the force on the valve disc bolts, aggravating the vibration and wear of the regulating valve, and achieving accuracy and stability. Controlling, increasing intensity, reducing jitter effects

Inactive Publication Date: 2012-02-22
浙江华元汽轮机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the commonly used regulating steam valve, the valve disc bolts are long and thin, and the bolt heads are exposed on the valve beam, and the two ends of the valve beam are open. In the complex and harsh steam flow environment of the steam inlet chamber, these unfavorable factors not only incr

Method used

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  • High-temperature high-pressure steam split-ranging valve control device
  • High-temperature high-pressure steam split-ranging valve control device
  • High-temperature high-pressure steam split-ranging valve control device

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Embodiment 1

[0014] Such as figure 2 The high-temperature and high-pressure steam split-range valve control device shown includes a valve beam 3, and a plurality of valve discs 7 are respectively connected to the valve beam 3 through valve disc bolts 5, and the valve discs 7 cooperate with the valve seat 4, and the valve beams 3 is provided with a stepped hole for piercing the valve disc bolt 5, and a bushing 6 is provided in the stepped hole. The valve disc bolt 5 passes through the valve beam 3 and the bushing 6, and its upper end can be limited by the bushing 6. Its lower end is threaded and fixed with the valve disc 7; wherein, the bushing 6 and the valve beam 3 are clearance fit, the valve disc bolt 5 and the valve beam 3 and the bushing 6 are clearance fit, and the upper end of the valve disc bolt 5 does not exceed The top surface of the valve beam 3, that is, the 5 heads of the valve disc bolts are hidden in the through hole, and the left and right ends of the valve beam 3 have a s...

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PUM

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Abstract

The invention discloses a high-temperature high-pressure steam split-ranging valve control device. The device comprises a valve beam, wherein a plurality of valve discs are connected to the valve beam through valve disc bolts; the valve discs are matched with valve seats; the valve beam is provided with stepped holes through which the valve disc bolts pass; bushings are arranged in the stepped holes; the valve disc bolts pass through the valve beam and the bushings; the upper ends of the valve disc bolts can be limited with the bushings; the lower ends of the valve disc bolts are in fixed threaded connection with the valve discs; the upper ends of the valve disc bolts do not exceed the top surface of the valve beam; and left and right ends of the valve beam have smooth transition structures. Through the technical scheme, the device has a simple structure, high damage resistance and low jitter, and the valve disc bolts are subjected to low and uniform load.

Description

technical field [0001] The invention relates to a steam turbine regulating steam valve opening device, in particular to a high-temperature and high-pressure steam split-range valve control device suitable for controlling the flow rate of high-temperature and high-pressure steam. Background technique [0002] In the commonly used regulating steam valve, the valve disc bolts are long and thin, and the bolt heads are exposed on the valve beam, and the two ends of the valve beam are open. In the complex and harsh steam flow environment of the steam inlet chamber, these unfavorable factors not only increase the The force also intensifies the vibration of the regulating valve, which brings high-frequency impact to the valve disc bolts. For a long time, the head of the valve disc bolt and the part in contact with the valve disc will be severely worn and broken, resulting in failure and shutdown of the steam turbine. Contents of the invention [0003] The object of the present in...

Claims

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Application Information

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IPC IPC(8): F16K31/44F16K1/22
Inventor 娄东旭
Owner 浙江华元汽轮机械有限公司
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