Heat-insulating pipe

Abstract

A heat-insulating pipe comprises a straight pipe, an elbow pipe, a three-way pipe and a truncated pipe. Each of the straight pipe, the elbow pipe, the three-way pipe and the truncated pipe is a single-section pipe formed by locking an upper shell and a lower shell which are identical in structure through a locking device, a round covered edge is arranged at one end of each single-section pipe, a round contracting platform is arranged at the other end of each single-section pipe, each of the upper shells and the lower shells is arranged to be of a hollow structure, one ends of the upper shells and the lower shells are open while the other ends of the same are closed, partitions are arranged in the upper shells and the lower shells, support the same and have tension resistance and pressure resistance, heat-insulating materials are arranged in the upper shells and the lower shells, and each locking device comprises clamping holes formed in the corresponding upper shell and clamps arranged on the corresponding lower shell. The heat-insulating pipe is low in manufacturing cost, simple in structure, convenient to mount, good in heat-insulating effect, prolonged in warranty period, free of pollution, environment friendly, energy saving and convenient for popularization.

Description

technical field [0001] The invention belongs to the technical field of heat preservation of fluid pipelines, and in particular relates to a heat preservation pipe. Background technique [0002] In areas with relatively cold weather, the insulated pipelines generally involve gas pipelines, oil pipelines, water pipelines, and steam pipelines. At present, the following three insulation methods are commonly used: ①: Two semi-circular rock wool pipes in the shape of a tile body will be clamped up and down by the insulation steel pipe, and the two ends will be tied tightly with iron wires. After the working length reaches a certain distance, Use glass cloth to wrap the section of rock wool pipe body, including the flat seams of the upper and lower butt joints and the standing seams of the front and rear butt joints, and then brush with waterproof glue and sunscreen paint. The disadvantage of this method is that the materials are diverse, the process is numerous, and it is not env...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the materials are diverse, the process is numerous, and it is not environmentally friendly. In addition, the glass silk cloth often drops tiny dust during the construction process, and it is very itchy when it falls into the cuffs and collars, which is easy to cause skin allergies.

The superimposed thickness of the three layers of glass cloth, waterproof glue, and sunscreen paint is the outer skin of the rock wool pipe. The thickness is relatively thin, the impact strength is weak, the anti-ultraviolet period is short, and the warranty period is short. Rust, reduced lifespan, reduced insulation effect

②: The sponge-like soft glass fiber hollow roll is used for heat preservation. A through seam on the hollow roll will be covered by an insulating steel pipe. The two ends and the middle are tied with iron wire or rope. After the working length reaches a certain distance, use Glass cloth wraps the fiber hollow roll body and the gaps, and then brushes waterproof glue and sunscreen paint. This method has the same disadvantages as above, and the thickness of the tube after being insulated is uneven. The walls are not straight, and sometimes a long piece of fiber cloth falls out of the tatters, floating in the air, which is very unsightly

The disadvantage is that the steel pipe cannot be transported to the construction site at one time, and it must first be transported to the anticorrosion plant, which requires a second loading and unloading; secondly, the two ends of the steel pipe are about 300mm away from heat preservation, and must be reserved for on-site welding, and manual second heat preservation is required after welding; It is aimed at one insulation pipeline, the insulation materials used are of different types and intervals, which makes it difficult to handle the joints of the two insulation materials, and it is easy to get water if it is not handled properly, and the process is complicated

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