Radial wear-resistant sealing device of air preheater

A technology of air preheater and sealing device, which is applied in engine sealing, lighting and heating equipment, combustion methods, etc., can solve the problems of short service life, fast wear speed, poor sealing performance, etc., and achieve long service life and sealing Good effect, good wear resistance

Active Publication Date: 2014-04-16
江苏鑫信润科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The radial sealing device of the existing air preheater generally adopts a rigid seal, which obviously has the serious disadvantages of fast wear, poor sealing performance and short service life

Method used

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  • Radial wear-resistant sealing device of air preheater
  • Radial wear-resistant sealing device of air preheater
  • Radial wear-resistant sealing device of air preheater

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Embodiment Construction

[0011] Accompanying drawing discloses the specific structure diagram in the embodiment of the present invention non-restrictively, further description is as follows in conjunction with accompanying drawing:

[0012] See attached Figure 1~3 , 1 in the figure is a wear-resistant ceramic sheet, 2 is an oblique anti-wear sealing plate, 3 is a pitching movable plate, 4 is a round shaft, 5 is a fixed plate, 6 is a spring bracket, 7 is a compression spring, 8 and 9 10 is a spring positioning block, 10 is a nut, 11 is a П-shaped fixed seat, 12 is a rotating sleeve, 13 is a pin shaft, 14 is an adjustment rod, 15 is a support seat, 16 is an adjustment nut, and 21 is the sector of the air preheater stator Plate, 22 is the air preheater rotor.

[0013] The air preheater radial anti-wear sealing device of the present invention has a structure such as figure 1 As shown, it is mainly composed of an inclined anti-wear sealing plate 2, a pitching movable plate 3, a fixed plate 5, a compress...

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Abstract

The invention discloses a radial wear-resistant sealing device of an air preheater, comprising an inclined wear-resistant sealing plate, a luffing movable plate, a fixed plate, a compression spring and an elastic adjusting device, wherein the inclined wear-resistant sealing plate is fixedly arranged on the luffing movable plate, the inner side edge of the luffing movable plate is mounted on the top edge of the fixed plate through a circular shaft, and the compression spring and the elastic adjusting device are respectively arranged at the two ends of the luffing movable plate; the slope of the wear-resistant sealing plate is embedded with a wear-resistant ceramic plate with a large area so as to ensure that the wear-resistant ceramic plate is in contact with a sector plate in the whole rotation process. The radial wear-resistant sealing device provided by the invention has the advantages of being good in sealing effect, good in wear resistance, long in service life, convenient in field installation, short in construction period, suitable for modular production and the like. Moreover, the radial wear-resistant sealing device is suitable for radial sealing of a rotary air preheater of a large-sized boiler.

Description

technical field [0001] The invention relates to a sealing device, in particular to a radial sealing device of an air preheater, and belongs to the field of rotary air preheaters. Background technique [0002] As the heat exchange equipment of large boilers, rotary air preheater is widely used in power plant boilers. It uses the heat of flue gas discharged from the boiler to preheat the air required for combustion into the boiler, thereby improving the efficiency of the boiler. The air leakage rate of the air preheater is an important indicator affecting the efficiency of the boiler. A high air leakage rate will reduce the output of the supply and induced draft fans, increase power consumption, and also reduce the heat exchange efficiency, thereby affecting the boiler efficiency. Therefore, the effective control of air The air leakage rate of the preheater can reduce power consumption, improve boiler efficiency, and achieve a good effect of energy saving. The air preheater u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23L15/00F16J15/16
CPCY02E20/34
Inventor 周治中周惠周亮
Owner 江苏鑫信润科技股份有限公司
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