Rigid polyurethane plastic foam insulation pipe and processing method

Abstract

The invention relates to a rigid polyurethane plastic foam insulation pipe and a machining method. A polyurethane insulation layer produced by an original polyurethane foaming technology is low in density, and polyurethane plastic foam is soft, has no supporting performance and is not resistant to high temperature. The rigid polyurethane plastic foam insulation pipe comprises a working pipeline, a rigid polyurethane plastic foam insulation layer and an outer protective pipeline, the rigid polyurethane plastic foam layer (2) is arranged outside the working pipeline (3), and the outer protective pipeline (1) is arranged at the outer side of the rigid polyurethane plastic foam layer. The rigid polyurethane plastic foam insulation pipe and the machining method are applied to the field of rigid polyurethane plastic foam insulation pipes.

Description

Technical field: [0001] The invention relates to the processing field of energy transmission pipelines such as heating pipelines, cooling pipelines, petroleum and petrochemical pipelines, and ships, and particularly relates to a rigid polyurethane plastic foam insulation pipe and a processing method thereof. Background technique: [0002] Since the introduction of foreign technology to produce polyurethane foam insulation pipes (commonly known as black and yellow jacket insulation pipes) in my country in the early 1980s, due to the rapid development of the central heating industry, hundreds of manufacturers have formed production enterprises, and the phenomenon of winning bids at low prices in the past 30 years, Leading to the pursuit of low price strategy, low price will inevitably lead to low quality, low quality will inevitably lead to short life, and low quality will inevitably consume high energy. Therefore, since the introduction of industrial technology in my country fo...

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Problems solved by technology

[0002] Since the introduction of foreign technology to produce polyurethane foam insulation pipes (commonly known as black and yellow jacket insulation pipes) in my country in the early 1980s, due to the rapid development of the central heating industry, hundreds of manufacturers have formed production enterprises, and the phenomenon of winning bids at low prices in the past 30 years, Leading to the pursuit of low price strategy, low price will inevitably lead to low quality, low quality will inevitably lead to short life, and low quality will inevitably consume high energy. Therefore, since the introduction of industrial technology in my country for more than 30 years, not only has there been no technological update, but it has stagnated and shoddy , and the implementation of product quality standards is low. With the high-speed geometric multiple development of real estate this year, energy consumption has increased exponentially, which has brought smog pollution throughout Asia, and people's health is extremely disharmonious. The reason is that due to many factors, domestic Most supply black and yellow jacket pipes not only have high thermal conductivity, water balance imbalance, short service life, but also poor physical properties, large heat loss, and high maintenance costs; therefore, accelerating technological innovation and technological transformation in the heating field is the development of my country's energy supply industry the inevitable requirement of

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