With the continuous advancement of urbanization, urban heating systems have become an important part of urban infrastructure. In this system, the laying of heating pipes is a key part. In order to ensure the thermal insulation performance and service life of heating pipelines, prefabricated directly buried insulation pipes are more and more widely used. This paper will introduce the prefabricated direct-buried insulation pipe for urban heating in detail, including its characteristics, production process, application scope and development trend.
First, the characteristics of prefabricated directly buried insulation pipes.
Prefabricated directly buried insulation pipe is a kind of composite pipe composed of working steel pipe, insulation layer and external protection pipe, which has simple structure and easy to use, and has the following characteristics:
1.Good thermal insulation performance: The prefabricated directly buried thermal insulation pipe adopts advanced thermal insulation materials, which has good thermal insulation performance, which can effectively reduce heat loss and improve heating efficiency.
2.Long service life: Because the prefabricated direct buried insulation pipe is made of corrosion-resistant and high-temperature resistant materials, it has a long service life and can effectively reduce the cost of maintenance and replacement.
3.Convenient construction: The prefabricated directly buried insulation pipe is produced in the factory, and the construction site only needs to be connected by pipes, which is convenient and fast to construct and can effectively shorten the construction period.
4.Environmental protection and energy saving: The production and use of prefabricated directly buried insulation pipes produce less waste, less impact on the environment, and are an environmentally friendly and energy-saving product.
Second, the production process of prefabricated directly buried insulation pipe.
The production process of prefabricated directly buried insulation pipe mainly includes the following steps:
1.Selection and processing of working steel pipes: According to different use environment and media requirements, select working steel pipes of different materials and specifications, and carry out corresponding processing, such as cleaning, rust removal, anti-corrosion, etc.
2.Production of insulation layer: According to the specifications and insulation requirements of the working steel pipe, select appropriate insulation materials, such as aluminum silicate fiber, polyurethane foam, etc., and process them into a certain thickness of insulation layer.
3.Manufacture of outer sheath: The outer sheath is usually made of high-density polyethylene (HDPE) material, which is processed into a tubular structure matched with the working steel pipe and insulation layer through a special production process.
4.Assembly and testing: Assemble the working steel pipe, insulation layer and outer protection pipe together in a certain order, and carry out quality testing such as pressure testing and appearance inspection to ensure that the product quality meets the relevant standards.
3. The application scope of prefabricated directly buried insulation pipes.
Prefabricated directly buried insulation pipes are widely used in urban central heating, district heating, industrial park heating and other fields. Due to its excellent thermal insulation performance and long service life, prefabricated directly buried insulation pipes have become an important part of urban heating systems. It can effectively reduce heat loss, improve heating efficiency, reduce energy consumption and operating costs, and provide stable and reliable heating services for urban residents and enterprises.
Start planning my 2024 Fourth, the development trend of prefabricated directly buried insulation pipeWith the continuous development of science and technology, the technology and performance of prefabricated directly buried insulation pipe are also improving. In the future, the development of prefabricated directly buried insulation pipes will show the following trends:1R&D and application of new materials: With the continuous development of new material technology, new insulation materials and anti-corrosion materials will be widely used in the production of prefabricated directly buried insulation pipes to further improve their thermal insulation performance and corrosion resistance. 2.Application of intelligent production technology: Intelligent production technology will be widely used in the production of prefabricated directly buried insulation pipes, realize the automation and information management of the production process, and improve production efficiency and product quality. 3.Improvement of environmental protection and energy saving requirements: With the continuous improvement of environmental awareness, the environmental protection requirements in the production and use of prefabricated directly buried insulation pipes will be more stringent. At the same time, energy-saving technologies will be further developed to reduce the energy consumption and carbon emissions of products.