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high-pressure boiler tube, seamless steel pipe

Company News

high-pressure boiler tube, seamless steel pipe
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Production Process And Use of High Pressure Boiler Tubes

Date:2024-11-07View:219Tags:high-pressure boiler tube, seamless steel pipe

High-pressure boiler tubes are a type of boiler tube and belong to the category of seamless steel pipe. The manufacturing method is the same as that of seamless tubes, but there are strict requirements on the type of steel used to manufacture steel tubes. High-pressure boiler tubes are often in high temperature and high pressure conditions when used. Under the action of high-temperature flue gas and water vapor, the tubes will oxidize and corrode. The steel tubes are required to have high lasting strength, high anti-oxidation and corrosion performance, and good organizational stability. High-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, gas guide tubes, main steam tubes, etc. of high-pressure and ultra-high-pressure boilers.

 

Common production processes

1. Carbon steel cold-drawn seamless tube: First, the ingot profile or tube billet is processed into a round billet of appropriate size, and then drawn on a cold drawing machine. Through multiple drawing processes, the tube billet is gradually lengthened and thinned, and finally a pipe of specified size is formed.

2. Hot-rolled seamless tube: The steel billet is heated to an appropriate temperature, and then subjected to multiple rolling, perforation, and re-rolling processes, and finally a seamless tube of specified size is produced.

3. Hot extrusion seamless pipe: The heated steel billet is placed in the extruder, and the inner hole steel billet is subjected to the extrusion force to gradually form a hollow billet, and then the hollow billet is further processed through the rolling mill to finally form a seamless pipe with specified size.

4. High-frequency welded steel pipe: Through the steel strip plate or steel strip coil material, it is processed through roller forming, high-frequency welding, internal and external welding and other processes to finally form a high-frequency welded pipe with specified size.

5. Thermal power pipe making: Through resistance heating, the specified section of the long steel pipe is heated to the appropriate temperature, and then the pipe billet is flattened by hammering or air pressure, and then forged or extruded to finally form a high-pressure boiler tube with specified size.

 

Main application areas

1. Petroleum industry: High-pressure boiler tubes are widely used in the petroleum industry. In the process of oil extraction, high-pressure water injection is required to increase the oil recovery rate. The pressure resistance of high-pressure boiler tubes is very good and can withstand the working environment of high-pressure water injection.

2. Chemical industry: In chemical production, high temperature and high pressure reactions are often required, and high pressure boiler tubes can withstand high temperature and high pressure working environments, ensuring the normal progress of chemical production.

3. Power industry: The power industry is one of the main application areas of high pressure boiler tubes. In power stations, high pressure boiler tubes are needed to transport high temperature and high pressure water vapor to generate steam to drive turbines for power generation.

4. Boiler industry: High pressure boiler tubes are also indispensable pipes in the boiler industry. In boilers, high pressure boiler tubes are needed to transport high temperature and high pressure water vapor to generate steam to heat water.

 

Summary

In short, high pressure boiler tubes are widely used in petroleum, chemical, electric power, boilers and other fields. Its advantages are good pressure resistance and ability to withstand high temperature and high pressure working environments, ensuring the normal progress of industrial production.