Advantages of Insulation Pipes and Construction Specifications (Part 2)

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On-site joint insulation construction, this item is unique to the thermal insulation pipe. The quality of the construction directly affects the service life and must be paid enough attention. The on-site joint insulation of the insulation pipe must be performed after the pressure test is qualified. The insulation layer There are two methods: on-site foaming construction and thermal insulation tile construction. No matter which method is used, there should be no defects such as annular space, cracking, delamination, etc. There are various methods of protective layer (such as high-density polyethylene and glass fiber reinforced plastic protective layer ), But must ensure the integrity, tightness and waterproofness of the joint.

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The backfill soil should be tested at the pipeline, joints, and completed measurements, and can only be carried out after cleaning. The thickness of the sand must be specified according to the construction characteristics of the buried pipe. Do not cut corners.

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Completion inspection, because the directly buried heating pipe is buried underground, most of them are hidden projects. If the completion inspection is not serious, and the completion information is not detailed, it will affect future use.

Thermal Insulation Pipe

Thermal insulation pipe factory to share with you: the main classification of thermal insulation pipes

First, precast polyurethane direct buried insulation pipe

External material PE jacket tube, which can be customized according to the on-site media delivery environment, low price, non-toxic and odorless, no dust and falling objects, flame retardant, long-term work under 120 ℃ medium temperature does not release harmful substances, good flexibility , Waterproof and moisture-proof, acid and alkali corrosion resistance, excellent thermal insulation effect.

2. FRP polyurethane insulation pipe

External material glass fiber reinforced plastic is installed overhead, no trenching and direct burial, simple and convenient construction, non-toxic and odorless, no dust falling, flame retardant, non-oxidation in long-term exposed space, waterproof and moisture-proof, acid and alkali resistance Hit and resist.

3. Galvanized iron sheet polyurethane insulation pipe

The external material of the company's heat source is selected from hot-dip galvanized iron sheet. This galvanized iron sheet is not afraid of water and light. It is wound with a spiral forming structure and has bending resistance. It is suitable for the outer protective tube of the polyurethane insulation pipe of the company in combination with good seam acceptance. Longer life.

4. Composite polyurethane insulation pipe

The thermal conductivity of polyurethane insulation is very low in thermal insulation materials, so the heat loss of the material can be reduced to a very low limit; because the closed-cell rate of polyurethane foam reaches more than 92%, polyurethane is used as the thermal insulation layer Not only can it play a role of heat insulation, but also can effectively prevent the penetration of water, moisture and other corrosive liquids and gases, and prevent the growth and development of microorganisms. Polyurethane foam can be firmly bonded to various materials, so it is almost unnecessary to consider the problem of adhesion of the anticorrosive layer as the thermal insulation layer of the thermal insulation pipe. The adaptable temperature of the polyurethane insulation layer is + 120 ℃ -196 ℃, and it can reach + 190 ℃ for a short time (ten hours). If the user needs a long-term temperature of 190 degrees, it can be molded with high-temperature materials according to the needs of the user.