Introduction of supporting sub-cylinders for steam generators

1. Product introduction
The sub-cylinder is also called the sub-steam drum, which is an indispensable accessory equipment for steam boilers. The sub-cylinder is the main supporting equipment of the boiler, which is used to distribute the steam generated during the operation of the boiler to various pipelines. The sub-cylinder is a pressure-bearing equipment and is a pressure vessel. The main function of the sub-cylinder is to distribute steam, so there are multiple valve seats on the sub-cylinder to connect the main steam valve and the steam distribution valve of the boiler, so as to distribute the steam in the sub-cylinder to various places where it is needed.
2. Product structure
Steam distribution valve seat, main steam valve seat, safety door valve seat, trap valve seat, pressure gauge seat, temperature gauge seat, head, shell, etc.
3. Product use:
Widely used in power generation, petrochemical, steel, cement, construction and other industries.

4. Precautions for use:
1. Temperature: Before the sub-cylinder is operated, the metal wall temperature of the main body should be guaranteed to be ≥ 20C before the pressure can be increased; during the heating and cooling process when starting and stopping, it must be noted that the average wall temperature of the main body does not exceed 20°C/h;
2. When starting and stopping, the pressure loading and release should be slow to avoid damage to the equipment due to excessive pressure changes;
3. No valve shall be added between the safety valve and the sub-cylinder;
4. If the operating steam volume exceeds the safe discharge volume of the sub-cylinder, the user unit should install a pressure release device in its system.
5. How to choose the correct cylinder
1. First, the design pressure meets the requirements, and secondly, the selection of sub-cylinder materials meets the requirements.
2. Look at the appearance. The appearance of a product reflects its class and value,
3. Look at the product nameplate. The name of the manufacturer and supervisory inspection unit and the production date should be indicated on the nameplate. Whether there is a seal of the supervisory inspection unit on the upper right corner of the nameplate,
4. Look at the quality assurance certificate. According to relevant national regulations, each sub-cylinder must be equipped with a quality assurance certificate before leaving the factory, and the quality assurance certificate is an important proof that the sub-cylinder is qualified.