Flexible steel sheet contact sealing devices and combined sealing structure thereof

A technology of contact sealing and flexible steel sheet, which is applied in engine sealing, indirect carbon dioxide emission reduction, combustion methods, etc., can solve problems such as large air leakage rate, lower power consumption rate of thermal power plants, unreasonable sealing structure, etc., and achieve Low air leakage rate, less maintenance and low cost

Active Publication Date: 2010-12-15
NINGBO FUSHIDA ELECTRIC ENG +1
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AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to solve the problem of unreasonable sealing structure and large air leakage rate of the existing rotary air preheater, provide a flexible steel sheet contact sealing device and its combined sealing structure, eliminate the gap, and overcome the different loads of the boiler The impact of the situation on the air leakage of the air preheater, so as to reduce the output of the boiler fan and achieve the purpose of reducing the power consumption rate of the thermal power plant

Method used

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  • Flexible steel sheet contact sealing devices and combined sealing structure thereof
  • Flexible steel sheet contact sealing devices and combined sealing structure thereof
  • Flexible steel sheet contact sealing devices and combined sealing structure thereof

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Embodiment

[0034] Embodiment: The flexible steel sheet contact type sealing device of this embodiment, such as figure 1 , 2 As shown, it is composed of a component mounting substrate 33, a flexible steel sheet 31, and a protective sheet 32. The component mounting substrate 33 is block-shaped. A plurality of parallel grooves are formed on the upper end of the component mounting substrate 33, and screws are passed in the grooves. Multiple flexible steel sheets 31 and protective sheets 32 are connected, and the protective sheets 32 are installed between the flexible steel sheets 31. The component mounting substrate 33 is equipped with 7 layers of flexible steel sheets 31, each layer of flexible steel sheet 31 is equipped with a protective sheet 32 ​​on both sides, a total of 8 layers, the protective sheet 32 ​​faces the end of the flexible steel sheet 31 than the end surface of the component mounting substrate 33 It is 8mm higher. Such as image 3 As shown, the flexible steel sheets 31 are ...

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Abstract

The invention relates to flexible steel sheet contact sealing devices and a combined sealing structure thereof. The flexible steel sheet contact sealing device comprises a component mounting substrate which is provided with a plurality of layers of wearable flexible steel sheets in elastic sealing contact with a sector plate end face or an axial curved plate of a rotary air preheater; and guard strips are arranged among the flexible steel sheets. The combined sealing structure comprises the flexible steel sheet contact sealing devices; the working end faces of the flexible steel sheets are provided with a plurality of notches; the flexible steel sheets are arranged in parallel along the width direction and are arranged in a staggered mode along the thickness direction; the flexible steel sheet contact sealing devices are arranged in parallel along the width direction of the flexible steel sheets; and the corresponding flexible steel sheets on adjacent flexible steel sheet contact sealing devices are seamlessly butted. The invention provides the flexible steel sheet contact sealing devices and the combined sealing structure thereof, which can reduce the capacity of a boiler fan andfulfill the aim of reducing the service power consumption rate of a thermal power plant.

Description

Technical field [0001] The invention relates to a rotary air preheater sealing device, in particular to a flexible steel sheet contact type sealing device for a rotary air preheater and a combined sealing structure thereof. Background technique [0002] The auxiliary power consumption rate of thermal power plants is an important indicator of the economic technology of thermal power plants. Boiler fans are the main users of power consumption in thermal power plants. Boiler fans generally include supply fans, induced draft fans, and primary fans. The rotary air preheater of thermal power plant is a heat exchange equipment commonly used in large and medium-sized power station boilers. It is a rotating regenerative heat exchanger. The air leakage rate is an important technical indicator of the air preheater. Effectively reducing the air leakage of the air preheater will effectively reduce the power consumption of the blower, primary fan and induced draft fan, thereby reducing the pow...

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 张斌立朱明程
Owner NINGBO FUSHIDA ELECTRIC ENG
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