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Tool and method for removing steam sealing block used for steam turbine generator unit

A technology for a steam turbine generator set and a dismantling tool, which is applied in the field of steam turbines, can solve the problems of difficult dismantling, time-consuming dismantling, and great potential safety hazards, and achieves the effects of convenient and rapid dismantling, high dismantling efficiency, and not easy to be damaged.

Active Publication Date: 2017-01-25
POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the steam seal block is removed by the conventional method, because the number of the steam seal block is large and the arc shape is fixed in the groove of the steam seal sleeve through the spring sheet, the space is limited, it is not only difficult to remove but also takes a long time to remove; if there is a steam seal If the sealing block is too tightly matched with the channel, it is easy to cause damage to the sealing teeth of some of the sealing blocks during removal, which poses a greater safety hazard

Method used

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  • Tool and method for removing steam sealing block used for steam turbine generator unit
  • Tool and method for removing steam sealing block used for steam turbine generator unit
  • Tool and method for removing steam sealing block used for steam turbine generator unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, under normal circumstances, the gland cover 1 is fixed with three gland blocks 5, after removing the first gland block, use the removal tool for the steam seal block of the steam turbine generator set for the second gland block in the middle , the removal tool includes a push rod with the same arc of 5 degrees as the steam seal block. One end of the push rod is provided with a metal pad that engages with the end of the steam seal block. The metal pad is less than the hardness of the steam seal block to avoid damage to the steam seal block. , the metal pad cooperates with the end of the steam seal block 5, and the steam seal block is pushed by pushing the push rod, and then the steam seal block is removed, which is simple and convenient.

[0031] The push rod consists of two sections, the first section fixed to the metal pad has the same arc as the steam seal block, the second section is vertically connected to the first section, the angle form...

Embodiment 2

[0037] Such as figure 2 As shown, the push rod includes the first section and the second section, the first section has multiple sections, and the two adjacent sections of the push rod are connected by the first pin shaft, and the arc of the first section of the push rod and the steam seal block are the same To fit with the steam seal sleeve. In this way, after removing the middle steam seal block in Example 1, for the third steam seal block, by knocking the top of the second section of the push rod, the end of the steam seal block in contact with the non-copper gasket is knocked out of the steam seal sleeve. The end of the exposed steam seal block of the steam seal sleeve can quickly realize the rapid removal of the third steam seal block.

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Abstract

The invention discloses a tool and method for removing a steam sealing block used for a steam turbine generator unit. The tool comprises a push rod with a radian the same as that of the steam sealing block, a metal pad engaged with the end part of the steam sealing block is arranged at one end of the push rod, the push rod comprises at least two sections, a first section fixed with the metal pad is the same with the steam sealing block in the radian, and a second section is vertically arranged and is connected with the first section. By arranging the metal pad, fixation with the end part of the steam sealing block is facilitated, and the steam sealing block can be conveniently and quickly removed; the push rod is arranged in multiple sections, partial section is the same with the steam sealing block in the radian, and partial section is vertically arranged, so that the push rod can be beat conveniently; and by virtue of arrangement of the whole removing tool, the steam sealing block can be conveniently and quickly removed in limited space, and the removing efficiency is high.

Description

technical field [0001] The invention relates to a steam turbine, in particular to a removal tool and method for a steam seal block of a steam turbine generator set. Background technique [0002] Due to the high installation accuracy of the steam turbine flow gap, when adjusting the steam turbine flow gap during installation and overhaul, it is necessary to repeatedly remove the steam seal block for repair and scraping to achieve the required value of the manufacturer; generally installed in the upper and lower semi-circular arc gland sleeves There are at least three steam seal blocks, and the back of the steam seal block is fixed in the channel of the steam seal sleeve through the spring leaf. Due to the limited space, a square wood block is usually used to withstand the end of the steam seal block, and the hammer head is used to hit the square wood block. Remove the seal block inside the seal sleeve. [0003] When the steam seal block is removed by the conventional method,...

Claims

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Application Information

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IPC IPC(8): B25B27/00
CPCB25B27/0028
Inventor 李登生赵立波李宪法
Owner POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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