A pressure energy-recycling generation device for a natural gas pipe network

Abstract

The invention provides a pressure energy-recycling generation device for a natural gas pipe network. The device can efficiently transform the pressure energy in the natural gas pipe network into electricity, thereby realizing recycling. The operation state of the generation device can be automatically real-time monitored by combining a PLC and a solenoid valve, a pressure transmitter, a leakage detector and a sealing machine pry. The device can automatically forewarn and interlock to shut off when conditions like excess pressure and gas leakage occur, so the device has superior security and stability. The device can produce outstanding economic benefit, and has important meaning to reducing resource waste and accelerating establishment of resource-saving and environmentally friendly society.

Description

field of invention [0001] The invention relates to a power generation device for recovery of pressure energy, in particular to a power generation device for recovery of pressure energy in a natural gas pipeline network. Background technique [0002] At present, city gas is mainly transported through the pipeline network system, and in the process of natural gas transportation, high-pressure natural gas will produce a huge pressure drop during the pressure regulation process, releasing a large amount of energy. In China, the pressure-reducing process of natural gas mainly uses the pressure regulating station to regulate and stabilize the pressure of the pipeline network. Stress can be wasted. [0003] With the development of the economy, some recovery and utilization technologies for the pressure energy of the natural gas pipeline network have emerged in China, which are mainly divided into power generation utilization and refrigeration utilization. Among them, the Chinese ...

AI Technical Summary

Problems solved by technology

Among them, the Chinese invention patent application CN201310347177 discloses a process and device for generating electricity under the pressure of a small natural gas pipeline network, and proposes a small power generation device that uses the pressure of the natural gas pipeline network to generate electricity through the connection of an expander, a gearbox, and a generator. However, its power generation efficiency can only provide 1-5KW low-power users for recycling, and the available range is very low, and the safety and loss of the entire pipeline network are not considered enough, which is likely to cause serious safety accidents

[0004] Although the above-mentioned technologies are involved, there are serious deficiencies in power generation efficiency, utilization range, safety, etc., and it is difficult to meet the various needs of the actual pipeline network due to geographical location, special power demand, and safety.

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