A remote pressure regulating gas pressure regulator and its remote pressure regulating method

Abstract

The invention relates to a fuel gas pressure regulator with a remote pressure regulating function. The fuel gas pressure regulator comprises a direct-acting-type pressure regulator body, a pneumatic control unit, a small airbag and a solenoid valve set. The direct-acting-type pressure regulator body is provided with a balance flange provided with a gas balance cavity. The gas balance cavity communicates with a gas inlet cavity of the direct-acting-type pressure regulator body. A gas path led out of the balance flange communicates with the pneumatic control unit. The pneumatic control unit communicates with the small airbag. The small airbag is provided with the solenoid valve set. The solenoid valve set comprises a pressure increasing solenoid valve and a pressure decreasing solenoid valve. According to the fuel gas pressure regulator, a using mode of a traditional direct-acting-type pressure regulator is transformed, and a plurality of regulating and controlling assemblies are additionally mounted to form the pressure regulator with the remote regulating function; and the reliability and stability of the direct-acting-type pressure regulator are retained.

Description

Technical field [0001] The invention relates to a pressure regulator, specifically, a remote pressure regulating gas pressure regulator, belonging to the technical field of pressure regulators. Background technique [0002] In recent years, with the development of the market and the continuous improvement of user demand, the gas pipeline network and gas pressure regulating station are gradually developing in the direction of intelligence. Intelligence is mainly embodied in many aspects such as monitoring and control, safety and efficiency, and dynamic management. [0003] Existing pressure regulators include mechanical direct-acting pressure regulators, and electronically controlled pressure regulators using solenoid valves and pressure sensors. Mechanical pressure regulators have high reliability. It is commonly used in the field of regulators. However, the pressure of a mechanical regulator is a constant value. Generally, a fixed nominal regulator pressure cannot be adjusted. In...

AI Technical Summary

Problems solved by technology

[0003] The existing pressure regulators include mechanical direct-acting regulators and electronically controlled regulators using solenoid valves and pressure sensors. Mechanical regulators have high reliability and are used in gas pressure regulation. However, the pressure of the mechanical pressure regulator is a constant value, and the pressure of the generally fixed nominal pressure regulator cannot be adjusted. In practical applications, there is some inconvenience.

Images