Installation procedures and operating matters for pipelines in boilers

For any piece of boiler equipment, pipelines are an indispensable part of the equipment operation, and from the perspective of safe and stable operation goals, the boiler pipeline installation must be completed in accordance with relevant rules and in conjunction with reality.
 
What needs to be kept in mind is that the installation of pipelines in the boiler should comply with the "Safety Technical Supervision Regulations for Organic Heat Carrier Furnaces" and "Technical Supervision Regulations for Pressure Pipeline Installation", and should be carried out with reference to the instructions and the piping system diagram provided by the manufacturer.

Since it is equipped on the boiler, the main materials and welding materials of the pressure pipeline must have corresponding quality certificates and have material marks. During the installation process, in addition to the flange of the boiler, the connection ports of the pipelines should be welded as much as possible and achieve excellent welding quality.

Regarding the layout of boiler tubes, a certain slope should be maintained, and an exhaust port should be set at a higher point in the pipeline and a drain port should be set at a lower point to provide a foundation for the smooth circulation in the boiler. There are also strict requirements for the material selection of boiler pipelines. Generally, 20# seamless steel pipes are used, and are equipped with corresponding gaskets, flanges and other accessories.

In order to ensure the normal operation of the boiler, the weight of the pipeline must not be on the boiler body and the hot oil circulation pump, and the thermal expansion of the hot oil pipeline should be fully considered. After all the boiler pipelines are installed, except for the expansion tank, oil storage tank, and oil and gas separation, which will not participate in the pressure test, the rest should be subjected to air pressure or hydraulic tests and put into operation after passing the acceptance test.

At the same time, we must not forget that coating measures cannot be used at the flange connections of the boiler pipelines. The rest can be insulated and colored and marked according to relevant regulations. Good insulation will help the boiler function more effectively and provide better service for work or life. Provide a heat source.

Boiler tube connection method:

The connection methods of boiler tubes are as follows:
1. Threaded connection: Use threads to connect pipes and pipe fittings together. Common threaded connection methods include threaded connections, tapered threaded connections, etc.
2. Flange connection: Use pipe flange to connect flange plate. Common flange connection methods include flange butt welding connection, flange bolt connection, etc.
3. Welding connection: Welding is used to connect pipes and pipe fittings together. Common welding connection methods include butt welding connection, plug welding connection, etc.
4. Clamp connection: Use clamps to connect pipes and pipe fittings together. Common clamp connection methods include clamp bolt connection, clamp fastening connection, etc.
5. Pipe joint connection: Use pipe joints to connect pipes and pipe fittings. Common pipe joint connection methods include pressure pipe joint connection, quick-installation pipe joint connection, etc.

The above are common boiler tube connection methods. The specific method to be used needs to be determined according to the specific situation and needs.

Read more: Which material is used for boiler tubes?