Boiler bottom through-wall expansion joint
An expansion joint and wall penetration technology, which is applied to expansion compensation devices for pipelines, thermal insulation, pipes, etc., can solve problems such as cracking, gradual collapse, and difficulty in thermal insulation of pipelines.
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[0020] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.
[0021] Such as figure 1 , figure 2 , image 3 As shown, a furnace bottom wall-penetrating expansion joint is used for the wall-penetrating connection of the waste heat boiler furnace bottom. The connecting pipe 1 and the thermal insulation liner 2 are filled with a fixed thermal insulation layer 4 12, and a number of studs 3 evenly distributed around the circumference are used. The connection is fixed in one piece, the strength is high, and the stress absorption is uniform, and it has a good heat preservation function.
[0022] The inner circle of the thermal insulation liner 2 is sequentially stacked with a fixed thermal insulation layer three 11, a fixed thermal insulation layer two 10 and a fixed thermal insulation layer one 9, and each adjacent fixed thermal insulation layer is fixed with a fast...
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