Multi-arm ceramic sealing device of air preheater
An air preheater and ceramic sealing technology, which is applied to the sealing of engines, lighting and heating equipment, combustion methods, etc., can solve the problems of poor sealing performance, fast wear speed, short service life, etc., and achieve long service life and sealing Good effect, good wear resistance
Active Publication Date: 2015-01-07
江苏鑫信润科技股份有限公司
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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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[0010] The accompanying drawings disclose the specific structural schematic diagrams in the embodiments of the present invention without limitation, and are further described as follows in conjunction with the accompanying drawings:
[0011] see attached Figures 1 to 2 , 1 is the wear-resistant ceramic block, 2 is the inclined anti-wear sealing plate, 3 is the circular shaft of the rotary device, 4 is the fixed plate, 5 is the support seat, 6 is the П-type fixed seat, 7 is the nut, 8 is the pin Shaft I, 9 is the adjusting rod I, 10 is the compression spring, 11 pin shaft II, 12 is the adjusting rod II, 13 is the adjusting nut, 14 is the air preheater sector plate, 15 is the air preheater rotor.
[0012] The multi-arm ceramic sealing device of the air preheater of the present invention has the following structure: figure 1 As shown in the figure, it is mainly composed of an inclined anti-wear sealing plate (2), a fixed plate (4) and an articulated spring guide adjustment devi...
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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 a heat exchange equipment for large boilers, rotary air preheater is widely used in power station boilers. It uses the heat of flue gas discharged from the boiler to preheat the air that enters the boiler to participate in combustion, thereby improving the efficiency of the boiler. The air leakage rate of the air preheater is an important indicator that affects the efficiency of the boiler. The high air leakage rate will reduce the output of the supply and induced draft fans, increase the power consumption, and also reduce the heat exchange efficiency, thus affecting the efficiency of the boiler, so the air is effectively controlled. The air leakage rate of the preheater can reduce power consumption, improve boiler efficiency, and achieve a good effect of energy savi...
Claims
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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