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A self-lubricating balanced rotating partition with double tie rods

A rotating baffle, self-lubricating technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., to achieve the effect of good effect, flexible rotation and low pressure loss

Active Publication Date: 2016-08-24
HANGZHOU ZHONGNENG STEAM TURBINE POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-lubricating balanced rotating baffle with double tie rods, which is used to control the extraction and admission steam on the adjustable extraction or admission steam turbine, and is not prone to jamming.

Method used

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  • A self-lubricating balanced rotating partition with double tie rods
  • A self-lubricating balanced rotating partition with double tie rods
  • A self-lubricating balanced rotating partition with double tie rods

Examples

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Embodiment 1

[0017] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 As shown, the double tie rod self-lubricating balanced rotating diaphragm described in this embodiment includes a diaphragm body 1, a rotating ring 2, a steam balance chamber cover ring 3, an adjusting connecting rod 4 and a steam seal body 5, and the diaphragm The body 1 is divided into upper and lower semicircular structures, which are detachably connected by bolts; the partition body 1 has an annular passage along a circumferential line, and a first steam vane ring groove 6 is opened on the inner circumferential surface of the annular passage. The first cascade 7 is installed in the first steam vane annular groove 6, and the first cascade 7 is composed of a plurality of first steam passage windows 8 of the same size and evenly distributed. There is a steam seal body 5 on the top; there are a number of first balance chambers 22 channels 10 in the radial direction on the outer ring of the p...

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PUM

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Abstract

The invention relates to the field of steam turbines, in particular to a double-tie rod self-lubricating and balanced rotating baffle which is used to control the extraction and admixture of steam on a steam-admission steam turbine and is not prone to jamming. It includes a baffle body, a rotating ring, a steam The cover ring of the balance chamber, the adjusting connecting rod and the steam seal body, the self-lubricating and balanced rotating partition of the double tie rod, which drives the adjusting connecting rod through the oil motor to control the rotating ring to adjust the flow area to adjust the extraction pressure and flow, with pressure loss Low, good effect. Since the self-lubricating DEVA alloy block is used between the rotating ring and the partition body, the low friction coefficient of the self-lubricating material reduces the friction force when the rotating ring rotates, and the self-repairing ability of the alloy block makes the alloy block and the rotating ring form a good seal . The first balance chamber at the front end of the rotating ring communicates with the rear of the stage, and the second balance chamber at the rear of the rotating ring communicates with the front of the stage, so that the pressure difference on both sides of the rotating ring is greatly reduced, and the friction force is further reduced when the rotating ring rotates. More flexible.

Description

technical field [0001] The invention relates to the field of steam turbines, in particular to a self-lubricating and balanced rotating partition with double tie rods. Background technique [0002] Most domestic 50MW adjustable extraction steam units use a rotating baffle in the flow-through part of the unit to realize the adjustment of the steam extraction. The rotating baffle is a unique structure of the extraction heat supply steam turbine. The advantage of the rotating baffle is that the cylinder structure Simple, the length of the rotor is shortened; the disadvantage is that the structure is complex, the structure of the flow part of the rotating baffle is much more complicated than that of the steam extraction control valve, when the pressure difference between the two sides of the rotating baffle is large, it is easy to jam, causing the adjustment connecting rod Fracture, reducing the safety and reliability of the unit. Contents of the invention [0003] The object ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/00F01D17/00
Inventor 李锡明邢红斌唐真和朱恒方伋邱豪凯邱卫强戴伟伟
Owner HANGZHOU ZHONGNENG STEAM TURBINE POWER CO LTD
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