Structure-optimized and residual pressure power generation type gas pressure regulator

Abstract

The invention belongs to the technical field of gas transmission and distribution equipment, and discloses a structure-optimized and residual pressure power generation type gas pressure regulator. Thestructure-optimized and residual pressure power generation type gas pressure regulator is mainly technically characterized by comprising a valve body with a gas inlet, a gas outlet, a first-stage pressure regulator, a second-stage regulator A and a second-stage pressure regulator B, wherein valve ports and valve rods with trapezoidal valve heads at the bottoms are arranged in the valve bodies ofthe pressure regulators at all stages respectively; generator transmission shafts capable of freely rotating are sleeved in the valve rods; the upper parts of the generator transmission shafts are connected with a generator, and the lower parts of the generator transmission shafts are fixedly connected with generator fan blades; the upper parts of the valve bodies at all stages are provided with afirst-stage regulating cavity and a second-stage regulating cavity respectively; and cut-off valve seats are arranged on the valve rods between the first-stage regulating cavity and the correspondingvalve port and between the second-stage regulating cavity and the corresponding valve port respectively, and are matched with the valve ports. The structure-optimized and residual pressure power generation type gas pressure regulator is used for recovering gas pressure for power generation, so that energy is saved; and the structure-optimized and residual pressure power generation type gas pressure regulator is simple in structure, long in service life and has a self-cut-off function, and a pressure regulating diaphragm is prevented from being damaged easily.

Description

technical field [0001] The patent of the present invention relates to the technical field of natural gas pipeline transportation equipment, in particular to a gas pressure regulator with optimized structure and residual pressure power generation. Background technique [0002] Natural gas needs to use a gas pressure regulator during the transportation process. The current two-stage gas pressure regulator includes a valve body with an inlet, an outlet, a first-stage regulating chamber and a second-stage regulating chamber. The valve bodies of each stage are provided with a valve port and a valve stem with a valve seat at the bottom, and the first-stage regulating chamber There is a pressure-regulating diaphragm with a pressure-regulating tray in the secondary regulating cavity, the top of the valve stem is connected with the pressure-regulating diaphragm, and a pressure-regulating spring is arranged on the pressure-regulating diaphragm, and the pressure-regulating spring moves...

AI Technical Summary

Problems solved by technology

The gas pressure in this pressure regulator is consumed through throttling, so as to achieve the purpose of reducing the gas pressure, resulting in a waste of energy, and the secondary pressure regulating part has only one valve port and pressure regulator, resulting in the pressure regulating diaphragm Large loss, complex structure, large volume, lack of self-cutting protection function

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