The beginning of winter has passed, and the temperature has gradually dropped, especially in the northern areas. The temperature is low in winter, and how to keep the temperature constant during steam transportation has become a problem for everyone. Today, Nobeth will talk to you about the selection of steam pipeline insulation materials.
Although there are relatively many insulation materials, different materials have different performance in application. The insulation materials used in steam pipes are quite special, but what insulation materials are used for steam pipes? At the same time You should also know what the insulation materials for steam pipes are, so that you can better choose a high-quality material.
What insulation materials are used for steam pipes?
1. According to Article 7.9.3 of the GB50019-2003 “Design Code for Heating, Ventilation and Air Conditioning”, when selecting insulation materials for equipment and pipes, priority should be given to materials with small thermal conductivity, large moisture resistance factor, low water absorption, low density, and comprehensive economy. High-efficiency materials; insulation materials should be non-combustible or flame-retardant materials; the thickness of the pipe insulation layer should be calculated and determined according to the economic thickness in GB8175 “Guidelines for the Design of Equipment and Pipe Insulation” during heating.
2. Commonly used insulation materials include cork, aluminum silicate, polystyrene and polyurethane. Which one to use should be considered based on the complexity of the system pipeline and the price of the insulation material. Generally, the insulation materials used in a system should be the same.
3. Nowadays, the general thermal insulation uses hard thermal insulation materials such as cork or polystyrene that have been processed in advance. Because the use of processed thermal insulation materials is convenient for construction and the thermal insulation effect is better than that processed on site, so it is widely used. However, for this kind of assembled insulation layer, if the vapor barrier layer is not properly treated, water vapor in the air will flow into the insulation layer from the gaps, thereby destroying the performance of the insulation layer.
What are the insulation materials for steam pipes?
1. Rock wool pipe,
Rock wool pipes are mostly used for thermal insulation of boilers or equipment pipelines in industries such as petrochemical, metallurgy, shipbuilding, and textile industries. They are sometimes widely used in partition walls in the construction industry, and for indoor ceiling and wall insulation and other types of thermal insulation. Keep warm. However, in the power industry, petrochemical industry, light industry, etc., the insulation and thermal insulation measures of pipelines are used in various pipelines, especially for pipelines with smaller pipe openings. Waterproof rock wool pipes can be implemented quickly. It has special properties such as moisture resistance, water repellency and heat dissipation. It is suitable for use in rainy environments. It has water repellency.
2. Glass wool,
Glass wool has the characteristics of good formability, low volume density, and low thermal conductivity. Glass wool also has extremely high corrosion resistance and has good chemical properties in chemically corrosive environments. The adaptability characteristics of glass wool are for the insulation of air conditioners, exhaust pipes, boilers and steam pipes.
3. Urethane, polyurethane, which is mostly used in the production of cold storage, refrigerated trucks or fresh-keeping boxes. It can also be used as the heat insulation layer of color steel sandwich panels. Polyurethane is sometimes used in petrochemical tanks. Polyurethane also has the function of thermal insulation and cold insulation, and is used in petrochemical and metallurgical fields. It is especially widely used in the outer layer protection of various underground composite directly buried pipelines.
Post time: Mar-27-2024
