The non-rigid support system and the chimney of the horizontal section of the inner tube of the chimney

A non-rigid, horizontal section technology, applied in the field of chimneys, can solve problems such as inability to carry vertical loads and inability to provide vertical displacement capacity, and achieve the effects of avoiding fire safety hazards, easy installation and low price.

Active Publication Date: 2015-08-19
CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

General bearings include rigid bearings and sliding bearings. Rigid bearings can carry vertical loads, but cannot provide vertical displacement capabilities. Sliding bearings can provide displacement capabilities, but cannot carry vertical loads. This is obviously a pair of contradictions

Method used

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  • The non-rigid support system and the chimney of the horizontal section of the inner tube of the chimney
  • The non-rigid support system and the chimney of the horizontal section of the inner tube of the chimney
  • The non-rigid support system and the chimney of the horizontal section of the inner tube of the chimney

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Embodiment Construction

[0023] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but only to illustrate the essence of the technical solutions of the present invention.

[0024] Explanation of technical terms

[0025] Chimney inner cylinder and chimney outer cylinder: Thermal power plant chimneys generally adopt telescopic chimneys, which are composed of inner cylinder and outer cylinder. channel. The outer cylinder of the chimney is provided with a hole for the horizontal section of the inner cylinder of the chimney to pass through.

[0026] Non-rigid support and suspension system: it is a system composed of support and suspension devices with a certain deformation capacity. Stress, so as to avoid buckling ...

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Abstract

The invention provides a non-rigid supporting suspension system in a horizontal segment of a chimney inner barrel and a chimney. The system comprises a steel supporting ring, a non-rigid supporting suspension device and a horizontal limiting device, wherein the steel supporting ring is hooped the outside of the horizontal segment of the chimney inner barrel for supporting and fixing the horizontal segment of the chimney inner barrel; the non-rigid supporting suspension device is used for supporting or suspending the steel supporting ring; and the horizontal limiting device is used for restricting horizontal displacement of the steel supporting ring, wherein one end of the non-rigid supporting suspension device and one end of the horizontal limiting device are connected with the steel supporting ring, and the other ends are connected with the chimney inner barrel. The non-rigid supporting suspension system provided by the invention can bear load applied to the horizontal segment of the chimney inner barrel, and also can provide vertical deformation capacity so as to absorb vertical thermal deformation of a vertical segment of the chimney inner barrel.

Description

technical field [0001] The invention relates to the field of thermal power generation, in particular to a chimney in a thermal power plant. Background technique [0002] The horizontal section of the traditional hanging chimney inner tube adopts rigid support, which limits the deformation of the vertical section of the inner tube, and cannot release the thermal displacement of the inner tube of the chimney, which will generate considerable thermal stress on the inner tube, and even cause the inner tube to buckle destroy. Specifically, the inner cylinder of the chimney is affected by the temperature of the hot flue gas, and will be deformed due to thermal expansion and contraction. The vertical displacement caused by this deformation accumulates downward from the suspension point along the axis of the inner cylinder, and reaches tens of mm or more. [0003] In order to eliminate the adverse effects caused by the vertical thermal deformation of the vertical section, an expan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H12/28
Inventor 黎大胜蔡洪良杨薇徐勍陈飞潘炎根
Owner CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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