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Compensation device for thermal expansion and cold contraction

A compensation device, thermal expansion and cold contraction technology, applied in the direction of electrostatic separation, etc., can solve the problems of damage to the ash hopper and scraper conveyor, conveyor failure, cracking of the welding seam between the ash hopper and the shell, etc. The effect of failure operation, reduction of heat and damage, and reduction of equipment failure rate

Pending Publication Date: 2018-03-27
江苏蓝电环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of damage to the ash hopper and the scraper conveyor, failure of the conveyor or cracking of the weld between the ash hopper and the shell caused by the traditional connection method due to the downward and lateral expansion of the ash hopper of the electrostatic precipitator during operation and high temperature Problem, the present invention provides a thermal expansion and contraction compensation device that can absorb the expansion of the ash hopper both up and down and sideways

Method used

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  • Compensation device for thermal expansion and cold contraction
  • Compensation device for thermal expansion and cold contraction
  • Compensation device for thermal expansion and cold contraction

Examples

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Embodiment 1

[0030] as attached Figure 2-4As shown: the present invention is a thermal expansion and contraction compensation device, including a protective tube 31 and a telescopic body 32, the protective tube 31 is a tube with a square cross section, and the upper end of the protective tube 31 is a bell mouth with a large top and a small bottom. The telescopic body 32 includes an upper platen 321, a flexible telescopic layer 322, an insulating material 323, and a lower platen 324. The upper platen 321 includes an upper fixing part 3211 and an upper support member 3212. The surface of the upper platen 321 is in the shape of an isosceles trapezoid. Its shorter bottom is close to the outer wall of the protective tube 31, and its length is equal to one side of the upper port of the square protective tube 31. The shorter bottom of the upper pressing plate 321 is fixed with an upper support 3212 at a certain angle with the plate surface. In order to simplify the process and save costs, At the...

Embodiment 2

[0035] as attached Figure 5-7 As shown: the present invention is a thermal expansion and contraction compensation device, including a protective tube 31 and a telescopic body 32, the protective tube 31 is a cylindrical tube, and the upper end of the protective tube 31 is a bell mouth with a large upper part and a smaller lower part. The telescopic body 32 includes an upper pressing plate 321, a flexible telescopic layer 322, an insulating material 323 and a lower pressing plate 324. The upper pressing plate 321 includes an upper fixing part 3211 and an upper support member 3212. It can be the same as the circular curvature of the cross-section of the protective tube, and its shorter arc is close to the outer wall of the protective tube 31. The shorter arc of the upper platen 321 is fixed with an upper support 3212 at a certain angle with the plate surface. In order to simplify the process and save costs, it is also considered The effect of the force angle on the absorption of...

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Abstract

The invention discloses a compensation device for thermal expansion and cold contraction. The compensation device for thermal expansion and cold contraction includes a protection pipe and a telescopicbody, wherein the telescopic body is fixed on the peripheral outer wall of an upper end opening of the protection pipe. The upper end of the protection pipe is an upper-big and lower-small bell mouth. The telescopic body includes upper and lower pressing plates, a soft telescopic layer, and a thermal insulation material. One sides of the upper and lower pressing plates or the edges of the plate surfaces are provided with fixing parts for fixing the soft telescopic layer separately. Each fixing part includes a fixing body fixedly arranged on one side of the pressing plate or on the edge of theplate surface and a locking device for locking the soft telescopic layer . The other sides of the upper and lower pressing plates or the edges of the plate surfaces are fixedly provided with supporting pieces separately, wherein a certain angle is formed between the supporting piece and the pressing plate surface. The fixing parts of the upper and lower pressing plates are placed oppositely and relatively. The supporting pieces of the upper and lower pressing plates are placed controversially. The upper and lower edges of the soft telescopic layer are fixed in the fixing parts of the upper and lower pressing plates separately. The thermal insulation material is filled in a concave space defined by the upper and lower pressing plates and the soft telescopic layer. The top end of the upperpressing plate supporting piece is fixed on the outer wall of the upper end opening of the protection pipe. The lower end of the lower pressing plate supporting piece is beyond the lower end opening of the protection pipe.

Description

technical field [0001] The invention relates to a connection device in an electric precipitator, in particular to a thermal expansion and contraction compensation device for connecting an electric precipitator ash hopper and a scraper conveyor. Background technique [0002] In industrial production devices, in order to cope with thermal expansion and cold contraction of components, metal corrugated expansion joints are generally used to absorb expansion. This expansion joint can only absorb expansion in one direction, and absorbs very little expansion in the direction perpendicular to it. , that is, the metal bellows expansion joint is a one-way expansion joint. [0003] The electrostatic precipitator is a huge piece of equipment. During installation, one fulcrum in the middle is fixed, and the other fulcrums are one-way or two-way expansion movable. The connection mode between the dust hopper of the electrostatic precipitator and the scraper conveyor has always been It's a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/34
CPCB03C3/34
Inventor 杨德章武斌林敏陈平
Owner 江苏蓝电环保股份有限公司