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A support and clamping device for installing and welding the leakage channel of the high-pressure regulating valve of the steam turbine

A technology of high-pressure regulating valve and air leakage channel, which is applied in auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve problems such as poor positioning stability, achieve the effects of low cost, easy production and manufacturing, and overcome measurement errors

Active Publication Date: 2017-05-17
HARBIN TURBINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor positioning stability in the assembly and welding process of the existing high-pressure regulating valve, the present invention further proposes a support and clamping device for the assembly and welding of the leakage channel of the high-pressure regulating valve of the steam turbine

Method used

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  • A support and clamping device for installing and welding the leakage channel of the high-pressure regulating valve of the steam turbine
  • A support and clamping device for installing and welding the leakage channel of the high-pressure regulating valve of the steam turbine
  • A support and clamping device for installing and welding the leakage channel of the high-pressure regulating valve of the steam turbine

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Experimental program
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specific Embodiment approach 1

[0021] Specific implementation mode one: combine Figure 1 to Figure 11 Explain that a support and clamping device for welding the leakage channel of a steam turbine high-pressure regulating valve according to this embodiment includes a clamping seat 1, a connecting seat 2, a positioning block 3, a locking bolt 4 and two cylindrical pins 5, and the clamping seat 1 There is an arc groove 1-1 at the front end of the cylinder, the air regulating valve is set in the arc groove 1-1, a pin hole 1-2 is respectively arranged on both sides of the arc groove 1-1, and the lower end of the cylindrical pin 5 is inserted into the In the pin hole 1-2, the rear end of the clamp seat 1 is connected with the connecting seat 2, the shape of the connecting seat 2 is a quarter arc shape, and the upper and lower end surfaces of the connecting seat 2 are respectively provided with half The circular groove 2-3, the rear end of the connection seat 2 is connected with a positioning block 3, and the upp...

specific Embodiment approach 2

[0023] Specific implementation mode two: combination Figure 1 to Figure 8 Note that the front end of the connecting seat 2 in this embodiment is provided with a limit block 2-1, and the upper and lower ends of the limit block 2-1 are respectively provided with a limit groove 2-2, and the middle part of the rear end of the clip seat 1 is set at the limit In the groove 2-2, the groove wall of the limit groove 2-2 cooperates with the groove bottom of the arc groove 1-1. Other compositions and connection methods are the same as those in Embodiment 1.

[0024] Such a design can effectively position and connect the two when connecting the connecting base 2 and the clamping base 1. At the same time, the installation and disassembly of the connecting base 2 and the clamping base 1 can be completed without using other tools, which facilitates the conversion of the direction of the connecting base 2. , so as to realize two kinds of clamping in different directions of the left valve an...

specific Embodiment approach 3

[0025] Specific implementation mode three: combination Figure 1 to Figure 8 Note that the front end surface of the limiting groove 2-2 in this embodiment is an arc surface. Other compositions and connection methods are the same as those in the second embodiment.

[0026] This design realizes the cooperation between the limit groove 2-2 and the side wall of the valve core flange, making the positioning more accurate.

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Abstract

The invention relates to a machining fixture and particularly relates to a supporting and clamping device for assembling and welding a gas leakage channel of a high-pressure regulating valve of a steam turbine in order to solve the problem of poor location stability in the assembling and welding processes of the existing high-pressure regulating valve. The supporting and clamping device for assembling and welding the gas leakage channel of the high-pressure regulating valve of the steam turbine comprises a clamping seat, a connecting seat, a locating block, a locking bolt and two cylindrical pins, wherein a circular-arc groove is formed in the front end of the clamping seat; the rear end of the clamping seat is connected with the connecting seat; a semicircular groove is formed in each of the upper and lower end surfaces of the connecting seat along the axis direction; the rear end of the connecting seat is connected with the locating block; a conical groove, a flange groove and a threaded through hole are sequentially formed from front to back of the upper end surface of the locating block; the locking bolt is spirally arranged in the threaded through hole; and the tail end of the locking bolt supports against the disc end surface of a welding flange. The supporting and clamping device is used for assembling and welding the high-pressure regulating valve.

Description

technical field [0001] The invention relates to a mechanical processing fixture, in particular to a support and clamping device for assembly and welding of a leakage channel of a steam turbine high-pressure regulating valve. Background technique [0002] The leakage channel of the high-pressure regulating valve of the steam turbine unit is composed of the through hole of the valve core, an elbow and a flange welded together. Due to the welding of the elbow, the position requirements of the elbow and the valve core are required. Usually, the welding is done through Two people work together to measure the position and angle with a square ruler. One person holds the elbow tightly while the other welds. This process will have the disadvantages of operator measurement error and poor positioning stability. Contents of the invention [0003] In order to solve the problem of poor positioning stability in the assembly and welding process of the existing high-pressure regulating val...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04
CPCB23K37/04
Inventor 李强高岩王满山刘鹏
Owner HARBIN TURBINE
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