Thermal-insulating and waterstop non-thrust sleeve compensator

Abstract

The invention relates to a thermal-insulating and waterstop non-thrust sleeve compensator which comprises a main pipe and a sleeve. A convex ring is arranged on the outer surface of one end of the main pipe. The convex ring of the main pipe is sleeved with the sleeve. The convex ring of the main pipe is connected with the end of the sleeve through a flange. A conical end pipe is arranged at the other end of the sleeve. An outer sleeve is further arranged on the outer surface of the sleeve. The two ends of the outer sleeve are fixed to the sleeve through annular plates in a welding mode. A waterstop ring is arranged on the outer surface of the outer sleeve and arranged between the annular plates at the two ends of the outer sleeve. The space between the inner wall of the outer sleeve and the outer surface of the sleeve is filled with thermal-insulating padding. A sleeve ring is arranged on the inner wall of the sleeve and arranged between the flange and the convex ring of the main pipe.A sealed cavity is formed between the flange and the sleeve ring and is internally provided with sealing padding. The thermal-insulating and waterstop non-thrust sleeve compensator can be directly built and fixed to the compensator well wall during construction, and a gap between a pipeline and the well wall is avoided. The outer sleeve of the non-thrust sleeve compensator can have a good thermal-insulating effect, the sealing padding is not prone to being consumed, sealing is reliable, mounting and connection are convenient, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of pipelines, in particular to a heat-insulating and water-tight non-thrust sleeve compensator for pipeline networks. Background technique [0002] The existing urban heating pipeline network generally needs to install pipeline compensators at intervals. The pipeline compensators are used to compensate the displacement or contraction of the heating pipeline caused by thermal expansion and contraction. This type of compensator is usually installed in the compensator well . At present, the compensator well is generally built on the pipeline of the heating pipe network with bricks and concrete. When the heating pipeline is installed, a large gap is often formed between the pipeline and the wall of the compensator well. However, after a period of use, due to the displacement or telescopic action of the heating pipe, there will be cracks and gaps between the heating pipe and the well wall of the compensator, whi...

AI Technical Summary

Problems solved by technology

At present, the compensator well is generally built on the pipeline of the heating pipe network with bricks and concrete. When the heating pipeline is installed, a large gap is often formed between the pipeline and the wall of the compensator well. However, after a period of use, due to the displacement or telescopic action of the heating pipe, there will be cracks and gaps between the heating pipe and the well wall of the compensator, which will cause the sludge or groundwater outside the compensator well to leak into the well. Corrodes the pipeline and affects the daily maintenance of the pipeline

On the other hand, the existing pipeline compensators usually have no insulation layer, and the insulation performance is poor, so that the heat loss of the pipeline is relatively large

Moreover, the sealing packing of the existing compensator is easy to wear and tear, resulting in poor sealing, shortening the service life of the compensator, and increasing the cost of replacing the compensator and maintaining the pipeline

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