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The pressure control system is a gas pressure regulating device that integrates multiple functional components such as pressure regulation, flow limiting, and automatic control. It is specially designed for occasions such as natural gas long-distance pipeline transmission stations, urban distribution stations, storage and distribution stations, and gas supply for power plant gas turbines. It is also known as a 'pressure regulating train'.
The pressure control system is generally a gas pressure regulating device composed of major equipment such as the 'safety emergency shut-off valve, monitoring pressure regulating valve, and working pressure regulating valve' connected in series in order from upstream to downstream, and is equipped with corresponding instruments and meters. At the same time, the main equipment can be configured in various ways, such as self-operated, electric, or pneumatic, according to different user and process requirements.
The entire system is supplied in a modular, skid-mounted manner. The main equipment and related instruments within the system have been installed and manufactured in the factory, and have undergone individual inspection and complete machine performance testing. It features high precision, excellent performance, safety and reliability, reasonable structure, easy installation, and simple operation.
Under normal operating conditions of the system, the safety emergency shut-off valve and the monitoring pressure-regulating valve are both fully open, and the downstream outlet pressure is regulated by the working pressure-regulating valve. When the working pressure-regulating valve malfunctions and cannot control the downstream outlet pressure, the monitoring pressure-regulating valve takes over to regulate the downstream outlet pressure. If the monitoring pressure-regulating valve also fails and cannot control the downstream outlet pressure, the safety emergency shut-off valve automatically closes rapidly to achieve the purpose of cutting off the gas flow, ensuring the safety of the system.
◆Optimized design scheme, the series of products can meet the needs of natural gas transmission and distribution systems in cities of different scales;
◆The safety emergency shut-off valve, regulator, and control valve all use axial flow type, featuring large flow, low pressure loss, and low noise.
◆The pressure regulation is mainly in series-parallel monitoring, ensuring the system operates stably and reliably with a fast response speed;
◆ It can integrate station control on-site, configuring functional modules such as remote shut-off, pressure-regulating valves and remote transmission of valve positions, controller electric heaters, flow and pressure limiting, and remote control and remote adjustment.
◆The design of the entire pressure regulating device mainly complies with domestic and international standards and specifications such as GB 50251 and EN12186;
◆Various configuration methods can be adopted according to requirements, such as 'safety emergency shut-off valve, monitoring pressure regulating valve, working pressure regulating valve,' 'safety emergency shut-off valve, monitoring pressure regulating valve, working regulating valve,' and 'safety emergency shut-off valve, safety emergency shut-off valve, working regulating valve.'