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Flexible contact sealing device applicable to air preheater

An air preheater and contact sealing technology, which is applied in heat exchanger sealing devices, engine sealing, heat exchange equipment, etc., can solve problems such as fracture, failure, and spring loss of elasticity, so as to ensure operating efficiency and reduce maintenance chances , good sealing effect

Inactive Publication Date: 2013-02-06
大连保税区华鸿工业技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve flexible contact and good resilience, springs are often used now, but due to the working characteristics of the rotary air preheater, the state of the spring is constantly changing without a turn of the drum, especially in the high temperature working environment , the spring will soon fail due to loss of elasticity and fracture, affecting the safe operation of the unit

Method used

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  • Flexible contact sealing device applicable to air preheater

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Embodiment Construction

[0020] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0021] refer to figure 1 As shown, the flexible contact sealing device applicable to the air preheater of the present invention includes: a fixed plate, a movable plate and a counterweight assembly.

[0022] Among them, the fixed plate is used for installation and fixing, and the movable plate is used as a contact surface to form a seal. The movable plate and the fixed plate form a rotational connection. The counterweight realizes the adjustment of the position of the movable plate, so that it can realize contact sealing at different angles.

[0023] The counterweight assembly includes: counterweights, connecting rods, support columns, and movable joints. Wherein, the counterweight is used for counterweight, and the weight of the counterweight can be appropriately set according to different needs. As a preferred solution, the counterwe...

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Abstract

The invention discloses a flexible contact sealing device applicable to an air preheater. The flexible contact sealing device is characterized by comprising a fixing plate for fixation, a moving plate for realizing flexible contact sealing, and a weighing component for realizing the angle adjustment of the moving plate, wherein the fixing plate is rotationally connected with the moving plate; the weighing component comprises a weighing piece for weighing, a connecting rod for realizing the function of a lever, a support column for supporting a fulcrum for the connecting rod, and a moving joint for connecting the connecting rod and the moving plate. The flexible contact sealing device has the advantages that the weighing piece is used as a power source which is permanent and constant for adjusting the flexible contact; and moreover the whole weighing component is free of a structure which is likely to result in faults, so that the long-term safety operation on the basis that good sealing effect is realized is ensured, the repairing rate is very small, and the operation efficiency of a rotary air preheater is ensured.

Description

technical field [0001] The invention relates to a flexible contact sealing device, in particular to a flexible contact sealing device suitable for an air preheater. Background technique [0002] The traditional sealing method of the rotary air preheater is a rigid seal with a gap, and a minimum gap is maintained between the dynamic seal and the static seal to achieve the purpose of minimum air leakage. However, due to the mushroom-shaped deformation of the air preheater sealing cylinder, and this deformation changes continuously with the temperature of the load environment, it is difficult to maintain an optimal gap value between the static seal and the changed dynamic seal. If the gap is too large or too small, it will affect the operation of the unit. [0003] In order to solve this problem, the rotary air preheater now hopes to use flexible contact sealing technology for sealing, and it is hoped that the flexible contact can play a sealing role without causing damage to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F11/00F16J15/16
Inventor 左飞郭林湧
Owner 大连保税区华鸿工业技术有限公司
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