The slope of pipeline installation should comply with DLGJ23 Technical Regulations for Design of Steam and Water Pipelines in Thermal Power Plants; The position of the pipe butt weld should meet the design requirements, and should meet the following requirements: the position of the bent welding elbow should not be less than the starting point of the pipe diameter or less than 100mm; Short period not less than the diameter of the pipeline and not less than 150mm; The distance between the dredging, water and meter pipe holes and the edge of the weld should not be less than 50mm, and should not be less than the pipe diameter; The pipeline is off the wall and passes through the floor, pipe wall or floor slab without any interface; Pipe fittings or openings should be cleaned with a 10-20mm metallic gloss finish. Generally speaking, the corresponding should be straight, with a folding deviation generally not exceeding 2mm.

One is to choose appropriate ventilation equipment based on the actual pipeline installation environment, and choose low-noise ventilation equipment in situations with high noise control. The ventilation capacity of different types of ventilators is small in terms of air volume, air pressure, and wing blade centrifugal fans, while the noise of the front blade centrifugal fan is relatively high.

The second is to control the air flow speed inside the pipeline installation very well. Generally, according to physical principles, the faster the air flow speed, the greater the noise will be. In daily maintenance, there should also be some attention, and regular inspection of ventilation pipeline equipment aging also plays a certain role. It is of great help in reducing noise. The installation should meet the design requirements, be horizontal and vertical, and its deflection should not exceed 1/500 of the pipeline length. In the process of pipeline installation, if there is a contradiction between the laying positions of pipelines, the following principles should be adopted: avoid small diameter pipelines, large-diameter pipelines, atmospheric and low-pressure pipelines, high and medium pressure pipelines, normal temperature pipelines, low-temperature and high-temperature pipelines, auxiliary pipelines, main pipelines, general pipelines, and easily sedimented material pipelines. Install pipelines for continuous beam and column pipelines using main pipes and pipes; Effective measures should be taken in a timely manner to temporarily close the opening to prevent foreign objects from entering the pipe and blocking the pipeline. When installing the pipeline, whether it is allowed to be temporarily fixed for a long period of time, it should be fixed immediately after adjustment to avoid accidents.