Steel faucet prestress steel cylinder concrete thermal insulation pipe

Abstract

The invention relates to a pre-stressed reinforced concrete insulating tube of a steel bell and a steel spigot, which is technically characterized in that a tube core comprises a concrete tube core and a steel barrel with the same axis as the concrete tube core and inserted in the concrete tube core; the bell and the spigot are coaxially fixedly and respectively arranged at two ends of the tube core; and pre-stressed steel wires are wound around the outer wall of the tube core of an insulating layer. The pre-stressed reinforced concrete insulating tube has the advantages of simple structure, scientific and reasonable design, better endurance, resistance to corrosion, resistance to uneven settlement, low cost of raw material, low construction price, simple construction process, convenient maintenance, good insulating effect and high innovativeness, so as to be the pre-stressed reinforced concrete insulating tube with high innovativeness.

Description

technical field [0001] The invention relates to a thermal insulation pipe, in particular to a prestressed steel cylinder concrete thermal insulation pipe with a steel socket. Background technique [0002] Insulation pipes are mainly used in urban heating system pipelines, and their basic components are tube core, insulation layer and outer sheath. There are two main structural forms of thermal insulation pipes: 1. Internal sliding structure. The so-called internal sliding means that the working steel pipe slides in the thermal insulation material during thermal expansion. When the working steel pipe is thermally displaced, it is separated from the thermal insulation structure. The overall thermal insulation structure is equal to a tube ditch, the working steel pipe slides in the pipe ditch; 2. Outer sliding structure, the working steel pipe together with the insulation material slides in the outer steel in the form of support (the support frame is welded on the working steel...

AI Technical Summary

Problems solved by technology

Although this structure can play a role in heat preservation when transporting hot and cold water, its defects are also obvious: 1. The cost of raw materials is high, especially in today's rising steel prices; 2. The construction process is cumbersome and the project cost is high

During the installation and construction process of the existing insulation pipes, a large number of interface weldings are required; 3. The interface of the insulation pipe is rigid, and the interface form of the existing insulation pipe connection is a steel interface, which has a weak ability to resist uneven settlement and is prone to High temperature water leaks out; 4. The steel pipe core needs to be anti-corrosion. The construction process is cumbersome, which increases the manufacturing cost, and the anti-corrosion layer will have a certain impact on the transmission medium

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