Production process of electric trace heating hose

Abstract

The invention discloses a production process of an electric trace heating hose. The production process comprises the following steps of 1, cutting an inner pipe according to the required length; 2, buckling joints to the two ends of the inner pipe; 3, weaving an electrical heating wire, a wire, a protective layer and a thermally-insulating layer to the inner pipe through a weaving machine; and 4,winding a layer of heat preservation cotton onto the obtained hose through a winding machine. According to the production process of the electric trace heating hose, the electrical heating wire, the wire, the protective layer and the thermally-insulating layer are woven onto the inner pipe through the weaving machine; manual weaving is replaced; on one hand, the weaving machine is high in weavingspeed and high in efficiency, the production cost of an enterprise is lowered, and on the other hand, the weaving machine weaves quite uniformly, so that all segments inside the hose are the same in temperature; and the object conveying quality is improved, and the product stability is improved.

Description

technical field [0001] The invention relates to an electric heat tracing hose, in particular to a production process of the electric heat tracing hose. Background technique [0002] There are many commonly used hoses, which are generally used to transport natural gas or water. These hoses are suitable for the transportation of gas or liquid at normal temperature, but for some materials that are sticky or solid at normal temperature or low temperature It often does not play the role of transportation, such as: crude oil, asphalt, candy, at this time, it is necessary to heat the delivery pipe to make the inside of the delivery hose have a certain temperature, usually braided on the delivery hose Heating wire, wire, Protective layer and thermal insulation layer. In the prior art, the braiding of heating wires, wires, protective layers and thermal insulation layers on the conveying hose is all done manually. On the one hand, the manual winding speed is very slow, the efficiency ...

AI Technical Summary

Problems solved by technology

[0002] There are many commonly used hoses, which are generally used to transport natural gas or water. These hoses are suitable for the transportation of gas or liquid at normal temperature, but for some materials that are sticky or solid at normal temperature or low temperature It often does not play the role of transportation, such as: crude oil, asphalt, candy, at this time, it is necessary to heat the delivery pipe to make the inside of the delivery hose have a certain temperature, usually braided on the delivery hose Heating wire, wire, Protective layer and thermal insulation layer. In the prior art, the braiding of heating wires, wires, protective layers and thermal insulation layers on the conveying hose is all done manually. On the one hand, the manual winding speed is very slow, the efficiency is very low, and a large amount of manpower is required. to complete the winding work, resulting in high production costs for the enterprise. On the other hand, the artificially wound heating wire, wire, protective layer and insulation layer are uneven on the conveying hose, resulting in a large temperature difference inside the conveying hose, poor performance, and stable poor sex