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Method and device for sealing body of power station boiler

A power station boiler and sealing device technology, which is applied in the sealing of engines, components of steam boilers, steam boilers, etc., can solve the problems of increased installation workload, cross-operation coordination, civilized production and environmental protection, and difficulties in maintenance of refractory plastics and other issues, to achieve the effect of preventing fly ash from leaking out, being conducive to environmental governance, and eliminating ash accumulation on the top of the furnace.

Inactive Publication Date: 2012-02-01
王悦 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is not only difficult to implement during on-site construction, but also greatly increases the coordination of installation workload and cross-work, and also causes difficulties in the maintenance of refractory plastics.
What's more serious is that the melted thin plastic clapboard slag will cause serious safety hazards to the pressure-bearing and heated pipes on the boiler roof, and the molten plastic gas will also cause serious damage to the upper insulation layer and other structures. Negative impact on on-site civilized production and environmental protection issues

Method used

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  • Method and device for sealing body of power station boiler
  • Method and device for sealing body of power station boiler
  • Method and device for sealing body of power station boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: A method for sealing the roof of a power plant boiler, in the case of better working conditions, comprises the following steps:

[0036] 101. Treatment of the working face: Grinding and cleaning the working face where the boiler body crosses the wall tubes vertically and horizontally to form an expansion difference point, so that the working face is free of floating dust and rust.

[0037] 102. Determine the dead point of the seal: Weld stainless steel nails staggeredly on the horizontal working surface, the horizontal distance of stainless steel nail welding is 150mm, and the longitudinal distance is 100mm; bind stainless steel wire on the vertical wall pipe; the position of stainless steel nail welding and stainless steel wire The binding position is the transverse sealing dead point and the longitudinal sealing dead point, the area surrounded by the transverse sealing dead point is the transverse sealing dead point area, and the area surrounded by the lo...

Embodiment 2

[0040] Embodiment 2: Same as Embodiment 1, under the condition of harsh working conditions, it also includes before the embodiment step 104. It also includes the step of laying nickel-cadmium-manganese soft net: laying multi-layer nickel-cadmium-manganese inside the ceramic fiber layer The soft mesh, the ceramic fiber layer and the nickel-cadmium-manganese soft mesh are overlapped with high-temperature adhesives.

Embodiment 3

[0041] Embodiment 3: the same as Embodiment 1, except that it also includes the steps of: installing additional fixed steel wires: bundling steel wires on the stainless steel diamond-shaped steel nets between the wall-piercing pipes every 100 mm apart.

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Abstract

The invention relates to a boiler roof sealing device and method, in particular to a method for sealing the body of a power station boiler. the method comprises the following steps of: treating a working surface; fixing sealing dead points; paving a ceramic fiber layer; and paving a diamond stainless steel mesh. The invention also provides a boiler roof sealing device which comprises the ceramic fiber layer and the stainless steel mesh, wherein the ceramic fiber layer is paved on the working surface on which forms expansion difference measurement points among vertical and horizontal wall pipes of the body of the boiler, the stainless steel mesh is arranged on the surface of the ceramic fiber layer, the ceramic fiber layer and the stainless steel mesh are fixed by welding stainless steel nails, the stainless steel nails are arranged on the horizontal working surface in a staggered manner, stainless steel wires are tied to the vertical wall pipes, the welding positions of the stainless steel nails and the tying positions of the stainless steel wires are horizontal sealing dead points and vertical sealing dead points respectively, the area defined by the horizontal sealing dead points is named a horizontal sealing dead point area, the area defined by the vertical sealing dead points is named a vertical sealing dead point area, and the expansion difference measurement points are arranged at the centers of the horizontal sealing dead point area and the vertical sealing dead point area.

Description

technical field [0001] The invention relates to a boiler top sealing device and a sealing method. Background technique [0002] The prior art sealing device consists of a furnace roof steel plate and a ceramic fiber sealing layer on it. The steel mesh on the top of the ceramic fiber layer is composed of a layer of refractory plastic lower layer and a layer of refractory plastic upper layer in sequence on the gap between the furnace roof steel plates, and a thin plastic partition is placed between the refractory plastic upper layer and the lower layer. Bond a layer of metal film on the top surface of the uppermost ceramic fiber layer. The main sealing method is to weld multiple spiral steel bars at intervals in the horizontal direction on the working surface of the furnace roof steel plate, and pour a refractory plastic lower layer; lay a thin plastic partition on the refractory plastic lower layer of the concrete steel bars, and then cast The refractory plastic upper layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B37/00F16J15/06
Inventor 王悦杨永强
Owner 王悦
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