Pressure regulating and power generating device for small-sized natural gas pipe network

Abstract

The invention discloses a pressure regulating and power generating device for a small-sized natural gas pipe network. The pressure regulating and power generating device comprises a box body and further comprises a pressure regulating unit and a power generating unit which are arranged in the box body; the pressure regulating unit comprises a pressure regulating pipeline and further comprises a filter, a turbine flowmeter, a first pressure adjuster and a check valve which are arranged on the pressure regulating pipeline in sequence; a bleeder is arranged at a position, which is located betweenthe first pressure adjuster and the check valve, on the pressure regulating pipeline; a bleeding valve is arranged on the bleeder; the power generating unit comprises a power generating pipeline andcomprises a damper, an electromagnetic valve, a fluid motor and a second pressure adjuster which are arranged on the power generating pipeline in sequence; the fluid motor is coaxially connected witha power generator; the upstream end of the power generating pipeline is connected with the pressure regulating pipeline section between the turbine flowmeter and the first pressure adjuster; and the downstream end of the power generating pipeline is connected with the pressure regulating pipeline section between the first pressure adjuster and the bleeder. The pressure regulating and power generating device for the small-sized natural gas pipe network has the advantages of the simple structure, the high integration degree, small volume, easiness in control, safety and stability.

Description

technical field [0001] The invention relates to a power generation equipment, in particular to an integrated device for pressure regulation and power generation of a natural gas pipeline network. Background technique [0002] Natural gas energy not only has the advantages of high thermal quality and less pollutants, but also has the advantages of large-scale and wide-ranging comprehensive application. In practical applications, natural gas transportation mainly adopts high-pressure transportation, while users mainly use low-pressure natural gas, so natural gas needs to be adjusted for pressure. For the pressure energy generated by natural gas pressure regulation, those skilled in the art have researched and developed various types of power generation devices to save energy. Although the existing natural gas differential pressure power generation device can achieve the basic purpose of power generation, there are still many storage problems in practical applications, mainly ...

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Problems solved by technology

[0004] In order to solve the problems of the natural gas pressure difference power generation device in the prior art, such as complex structure, large volume, difficult control, and poor safety, the present invention provides a small natural gas pipeline network pressure regulating power generation device, which includes a box body and The pressure regulating unit and the power generation unit arranged in the box, the pressure regulating unit includes a pressure regulating pipeline and a filter, a turbine flowmeter, and a first pressure regulator arranged on the pressure regulating pipeline in sequence from the upstream end to the downstream end and a check valve, a relief pipe is provided on the pressure regulating pipeline between the first pressure regulator and the check valve, and a relief valve is provided on the relief pipe; the power generation unit includes a power generation pipeline and successively from the upstream end to the downstream end The damper, electromagnetic valve, fluid motor and second pressure regulator arranged on the power generation pipeline, the fluid motor is coaxially connected to the generator, the upstream end of the power generation pipeline and the turbine flowmeter and the first pressure regulator The pressure regulating pipeline connection, the downstream end of the power generation pipeline is connected to the pressure regulating pipeline between the first pressure regulator and the release pipe

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