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Multi-arm ceramic sealing device of air preheater

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

Active Publication Date: 2012-11-14
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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  • Multi-arm ceramic sealing device of air preheater
  • Multi-arm ceramic sealing device of air preheater

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Embodiment Construction

[0010] 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:

[0011] See attached Figure 1~2 , 1 in the figure is a wear-resistant ceramic block, 2 is an oblique anti-wear sealing plate, 3 is a round shaft of a rotary device, 4 is a fixed plate, 5 is a support seat, 6 is a П-shaped fixed seat, 7 is a nut, and 8 is a pin Axis I, 9 is adjusting rod I, 10 is a compression spring, 11 pin shaft II, 12 is adjusting rod II, 13 is an adjusting nut, 14 is an air preheater sector plate, and 15 is an air preheater rotor.

[0012] Air preheater multi-arm type ceramic sealing device of the present invention, its structure is as follows figure 1 As shown, it is mainly composed of an oblique anti-wear sealing plate (2), a fixed plate (4) and a joint spring guide adjustment device. The oblique anti-wear sealing plate (2) is fixed by its inner sur...

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Abstract

The invention relates to a multi-arm ceramic sealing device of an air preheater, and the device comprises an inclined wear-resistant sealing plate, a fixed plate and a joint type spring guide regulating device, wherein the joint type spring guide regulating device comprises a rotating part, a regulating stem, a compression spring, a supporting seat and a regulating nut, the regulating stem is composed of a regulating stem I and a regulating stem II, the upper end of the regulating stem I is arranged on the back surface of the inclined wear-resistant sealing plate through the rotating part, the lower end of the regulating stem II is provided with a screw thread and connected with the regulating nut after passing through a round hole arranged in the front end of the supporting seat, the compression spring is sleeved on the regulating stem, and the rear end of the supporting seat is fixedly arranged on the fixed plate on a corresponding position. Wear-resistant ceramic blocks on the wear-resistant sealing plate can be in contact with a sector plate of the air preheater in the whole rotating process, so that the multi-arm ceramic sealing device has the advantages of good sealing effect, excellent wear resistance property, long service life, suitability for modular production, convenience for field installation, short construction period and the like. The multi-arm ceramic sealing device is most suitable for radially sealing a rotary air preheater of a large 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 Applications(China)
IPC IPC(8): F16J15/16F23L15/00
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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