Steam pipeline laying method for thermoelectric plant
A technology for a steam pipeline and a laying method, which is applied in the direction of pipeline laying and maintenance, protection of pipelines and pipeline supports through thermal insulation, etc. Dislocation of pipes and steel shells, etc., to achieve the effect of strengthening thermal insulation, waterproofing and protection, simple structure and convenient construction
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[0046] As shown in accompanying drawing 1, in thermal power plant steam pipeline laying method of the present invention, the laying of thermal insulation waterproof underground pipeline comprises the following steps:
[0047] a. After excavating the pipeline ditch, fill the bottom of the ditch with sand as the foundation, compact and level it;
[0048] b. Fill with 10-30cm thick fly ash, lay the steam pipe on the fly ash, and then cover the steam pipe with 10-30cm thick fly ash;
[0049] c. Fill the top of the fly ash with gravel soil.
[0050] Once the fly ash encounters water or moisture, it will solidify immediately around the steam pipe 1 to form a solid fly ash waterproof insulation pipe shell 2.
[0051] As shown in Figure 2, in the laying process of thermal insulation and waterproof underground pipelines, the fly ash can also be processed into a semicircular fly ash waterproof and thermal insulation shell 2 by using a mold, and then half of the waterproof and thermal ins...
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