Fuel gas pressure regulator capable of reducing fatigue damage

Abstract

The invention belongs to the technical field of fuel gas pressure regulating equipment, and particularly relates to a fuel gas pressure regulator capable of reducing fatigue damage, which comprises a pressure regulating cavity, the pressure regulating cavity is divided into an upper gas chamber and a lower gas chamber, the middle position of the upper gas chamber and the middle position of the lower gas chamber are separated through a rubber membrane, and the rubber membrane is driven by a lever assembly arranged in the lower gas chamber to move up and down. A base is arranged in the center of the upper end of the rubber membrane, and a permanent magnet is mounted at the upper end of the base; fine adjustment cavities are formed in the cavity walls of the two sides of the pressure adjusting cavity in the horizontal direction. According to the pressure regulator, the rubber membrane moves upwards to drive the electromagnet to generate magnetism, the repulsive force between the electromagnet and the permanent magnet embodies the spring in the prior art, the situation that the spring of the upper air chamber is subjected to mechanical fatigue in the long-time reciprocating stretching and compressing process, local permanent accumulated damage is gradually generated can be avoided, and the safety performance is better.

Description

technical field [0001] The invention belongs to the technical field of gas pressure regulating equipment, and particularly relates to a gas pressure regulator capable of reducing fatigue damage. Background technique [0002] Gas pressure regulator is a gas pressure regulating device specially suitable for gas transmission and distribution system as pressure regulation and voltage stabilization, and is widely used in gas transmission and distribution projects. Its function is to automatically adjust the gas outlet pressure to stabilize it in a certain pressure range to meet the pressure value required by the user and meet the use requirements. [0003] Based on the fact that the pressure value at the output end of the gas pressure regulator is stable within a certain range, in the existing industrial gas system, since each node in the system needs to pressurize or depressurize the gas step by step, a large number of pressure regulators will be set in the system. However, the...

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Problems solved by technology

[0003] Based on the fact that the pressure value at the output end of the gas pressure regulator is stable within a certain range, in the existing industrial gas system, since each node in the system needs to boost or depressurize the gas step by step, a large number of pressure regulators will be set in the system However, the pressure-reducing requirements of the regulators at each node are different, which requires a large number of different types of regulators, resulting in higher procurement costs; The right end of the middle lever is connected to the center of the rubber membrane, and the left end is glued to the valve pad, which is tightly fastened to the intake nozzle, which has a damping effect on the jetted high-pressure petroleum gas. The spring in the upper air chamber is stretched and compressed for a long time. Mechanical fatigue will occur in the process, and local permanent cumulative damage will gradually occur. After a certain number of cycles, there will be cracks or a sudden risk of complete fracture. Therefore, long-term use will affect the pressure regulating performance of the pressure regulator, making the pressure regulating system more powerful high security risk

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