초록 ▼

This invention provides a gas wave pressure regulation method and apparatus, gaseous wave pressure regulator (GWPR), associated with a pressure energy recovery system which can be used in the processes of petrochemical and liquid natural gas (LNG) industries to recover the lost energy in a regulatin

This invention provides a gas wave pressure regulation method and apparatus, gaseous wave pressure regulator (GWPR), associated with a pressure energy recovery system which can be used in the processes of petrochemical and liquid natural gas (LNG) industries to recover the lost energy in a regulating process where a pressure regulation is needed to reduce the pressure level fitting the operating conditions, but the spontaneous temperature is undesirable. The said method and apparatus employ a mechanism creating a unsteady periodic flow by means of gaseous wave resonant interactions to convert the energy between the pressure drop into the form of heat without using any moving parts. The said heat is reused inside the GWPR to eliminate or diminish the temperature drop associated with the pressure regulation. The said pressure energy recovery system comprises a primary GWPR followed by a primary heat exchanger, and a secondary GWPR linked by a secondary heat exchanger operated in series. The GWPR in the present invention consists of a flow rate controlling unit, a flow induction unit, and a pressure energy converting unit. The operation of the GWPR is based on gaseous wave interactions between shock wave in high speed jets and longitudinal oscillation of gas column in resonant tubes by which the pulsating flow production can recover the pressure energy lost in the regulating process.

대표청구항 ▼

[ The invention having been thus described, what is claimed as new and desired to secure by Letter Patent is:] [1.] A gaseous wave pressure regulation method comprising(a) a process generating a gaseous wave system through a flow controllable means within a pressure regulation process, wherein said

[ The invention having been thus described, what is claimed as new and desired to secure by Letter Patent is:] [1.] A gaseous wave pressure regulation method comprising(a) a process generating a gaseous wave system through a flow controllable means within a pressure regulation process, wherein said process of generation of gaseous wave interaction is produced by the interaction between a high speed jet driven by a pressure drop of a pressurized gas stream being regulated through a controllable convergent or convergent-divergent flowing passage during pressure regulation processes and a gaseous column in a resonant tube, wherein said gas column is driven in oscillating by a shock wave disk in said high speed jet and pressure-waves feedback from said oscillating gas column, coupled with the oscillation of said shock wave disk in said high speed jet generated by said pressurized gas stream being regulated, and generates an intensive energy-dissipation process by said gaseous waves interaction within said resonant tube and an intensive heating effect on the surface of said resonant tube sustained by said high speed jet generated from said pressurized gas stream being regulated, and(b) a process recovering the energy from said pressurized gas stream being regulated after being depressurized by passing through said surface of said resonant tube containing said oscillating gas column in the form of heat, wherein said pressurized gas stream being regulated is regulated after passing through said flow controllable convergent or convergent-divergent flowing passage and an oscillating chamber to dissipate the energy of said pressurized gas stream being regulated, release the pressure drop energy while being regulated, then recover said released energy from said surface of said resonant tube in the form of heat to compensate for its temperature drop during regulation.