Practical cross-linking apparatus

Abstract

The invention relates to a practical cross-linking apparatus. The practical cross-linking apparatus comprises a cross-linking box, a steam generator and a controller, wherein the bottom of the cross-linking box is provided with a steam pipeline and connected with the steam generator; the central part of the cross-linking box is provided with a thermocouple; a temperature measurement signal is transmitted to the controller to control the opening and closing of the steam generator; and bottom of the steam generator is provided with a water inlet pipeline. The practical cross-linking apparatus is simple in structure, reduced in cost, convenient, practical, free of geographic restrictions and stable in operation.

Description

technical field [0001] The invention relates to a practical crosslinking device. Background technique [0002] XLPE is the abbreviation of the English name of cross-linked polyethylene. It is the product of polyethylene (PE) molecules changing from a two-dimensional linear structure to a three-dimensional network structure after a cross-linking reaction. After the cross-linking reaction, better resistance to high temperatures can be obtained. Deformation ability, excellent chemical and physical properties, XLPE itself also has excellent electrical properties, dielectric loss is smaller than PVC insulation, capacitance is also small, can reduce charging current and ground fault current, excellent anti-aging characteristics, is currently Ideal insulating materials, among which silane cross-linked polyethylene insulation has been rapidly developed and popularized in medium and low voltage insulated cables due to its advantages of less investment, simple process and excellent pe...

AI Technical Summary

Problems solved by technology

[0002] XLPE is the abbreviation of the English name of cross-linked polyethylene. It is the product of polyethylene (PE) molecules changing from a two-dimensional linear structure to a three-dimensional network structure after a cross-linking reaction. After the cross-linking reaction, better resistance to high temperatures can be obtained. Deformation ability, excellent chemical and physical properties, XLPE itself also has excellent electrical properties, dielectric loss is smaller than PVC insulation, capacitance is also small, can reduce charging current and ground fault current, excellent anti-aging characteristics, is currently Ideal insulating materials, among which silane cross-linked polyethylene insulation has been rapidly developed and popularized in medium and low voltage insulated cables due to its advantages of less investment, simple process and excellent performance, and the process application of silane cross-linked polyethylene The two-step method is the majority, and the cross-linking process is generally completed by warm water or steam. The warm water cross-linking method has a large heat capacity and a relatively high cross-linking efficiency, and the cross-linking is relatively uniform, but the energy consumption is large, and the cable core wire end is easy to enter water. The entrance and exit need to be hoisted, and steam cross-linking is relatively clean, and there is no problem of conductor water entering, but a large amount of steam is required. If a boiler (a pressure vessel) is used, the safety management requirements are relatively high, and it is limited by environmental protection requirements. The thermal power company’s pipeline steam costs are also quite large, and the steam temperature is also affected by the distance. Therefore, it is very necessary to design a cross-linking device that is small in investment, convenient and practical, and not limited by geographical conditions.

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