Product overview

The pressure control system is a gas pressure regulating device that integrates various functional components such as pressure regulating, current limiting and automatic control. It is specially designed for gas transmission stations, urban sub-transmission stations, storage and distribution stations, power plant gas turbine supply and other occasions. Also known as the "pressure train".

Pressure control system is generally composed of "safety emergency cut off valve + monitoring pressure regulator + working pressure regulator" these main equipment in sequence from upstream to downstream gas regulator device, and supporting the corresponding instruments and meters. At the same time, the main equipment can be configured in a variety of ways such as self-operated, electric or pneumatic according to different user requirements and process requirements.

The whole system adopts modular and skid-mounted supply, and the main equipment and related instruments in the system have been installed and manufactured in the factory, and the monomer inspection and the whole machine performance test have been carried out. It has the characteristics of high precision, excellent performance, safety and reliability, reasonable structure, convenient installation and simple operation.

In the normal working state of the system, the safety emergency shutdown valve and monitoring pressure regulator are fully open, and the working pressure regulator regulates the downstream outlet pressure. When the working pressure regulator fails and the downstream outlet pressure cannot be controlled, the monitoring pressure regulator takes over from the working pressure regulator to adjust the downstream outlet pressure. When the monitoring pressure regulator also fails and the downstream outlet pressure cannot be controlled, the safety emergency cut-off valve automatically and quickly closes to cut off the airflow and ensure the safety of the system.

Product characteristics

◆ Optimized design scheme, series of products can meet the needs of different scale of urban natural gas transmission and distribution system;

◆ Safety emergency cut-off valve, voltage regulator, regulating valve are selected axial flow, with large flow, small pressure loss, low noise characteristics;

◆ The voltage regulation form is mainly series parallel monitoring to ensure stable and reliable system operation and fast response speed;

◆ It can integrate station control in the station, and configure function modules such as remote cutting, pressure regulating valve and valve position remote transmission, conductor electric heater, current limiting pressure limiting and remote control.

◆ The design of the whole voltage regulator mainly meets the requirements of GB 50251, EN12186 and other domestic and foreign standards and specifications;

◆ Can be used according to the requirements of "safety emergency cut-off valve + monitoring regulator + working regulator valve", "safety emergency cut-off valve + monitoring regulator + working regulator valve", "safety emergency cut-off valve + safety emergency cut-off valve + working regulator valve" and other diversified configuration.