Method and System for Using a Target Gas Provided by a Gas Decomposition Device

Abstract

The present invention relates to a method for utilising a target gas flow consisting of pressurised target gas, which is provided by a continuously-operated gas decomposition device, wherein the target gas flow is supplied to a target load which discontinuously decreases the target gas flow, so that occasionally an excess target gas flow that is not decreased by the target load accrues, as well as a system for supplying a target load. The excess target gases occurring in a gas decomposition device and optionally additionally resulting waste gases may be used in a resource-saving manner through the method and the system according to the invention. This is achieved by the excess target gas flow being supplied as a propellant gas to a compressor which compresses another gas and supplies it as a compressed gas in a compressed gas line, via which it is fed to another load.

1 . A method for utilising a target gas flow consisting of compressed target gas provided from a continuously operated gas decomposition device, comprising:
 using the target gas flow to supply a target load;   using the target load to discontinuously decrease the target gas flow;   accruing an excess target gas flow that is not decreased by the target load;   supplying the excess target gas flow a propellant gas to a compressor;   compressing another gas; and   supplying the compressed gas in a compressed gas line which it is fed to another load.   
     
     
         2 . The method according to  claim 1 , wherein the compressor is a gas jet compressor, comprising a drive side that is supplied with the excess target gas flow. 
     
     
         3 . The method according to  claim 1 , wherein the target gas is oxygen, which is obtained by the gas decomposition device separating ambient air. 
     
     
         4 . The method according to  claim 1 , wherein the excess target gas flow is mixed with the other gas before, during, or after its compression. 
     
     
         5 . The method according to  claim 1 , wherein a waste gas flow results from the generation of the target gas the gas decomposition device. 
     
     
         6 . The method according to  claim 5 , wherein the waste gas flow is fed to a pressure accumulator, the waste gas is stored there, and the waste gas is used to drive the compressor if necessary. 
     
     
         7 . The method according to  claim 5 , wherein the waste gas is mixed with the other gas before or after compression. 
     
     
         8 . The method according to  claim 5 , wherein both the excess target gas and the waste gas are mixed in a certain mixing ratio with the other before or after compression. 
     
     
         9 . A system for supplying a target load with a compressed target gas flow and another load with another compressed gas, comprising:
 a gas decomposition device, which provides a target gas flow to a target load that discontinuously decreases the target gas flow, so that an excess target gas flow is obtained in the gas decomposition device, and   a compressed gas operated compressor for compressing and feeding a compressed gas into a compressed gas line leading to another load,   wherein the compressor is connected to an outlet of the gas decomposition device on a drive side via a propellant gas line, through which the excess target gas flow flows as a propellant gas to a propellant gas connection of the compressor.   
     
     
         10 . The system according to  claim 9 , wherein the compressor is a gas jet compressor. 
     
     
         11 . The system according to  claim 9 , further comprising an accumulator which is connected to the outlet of the gas decomposition device for a waste gas arising during the gas decomposition process. 
     
     
         12 . The system according to  claim 11 , wherein the accumulator is connected to the drive side of the compressor via a supply line, and a valve is provided to free the supply line if necessary, and drive the compressor by means of the waste gas stored in the accumulator. 
     
     
         13 . The system according to  claim 11 , wherein the accumulator is connected on an outlet side to a suction side of the compressor or with the compressed gas line in order to mix the waste gas in a gas flow to be compressed by the compressor, or in a compressed gas flow compressed by the compressor. 
     
     
         14 . The system according to  claim 9 , further comprising a mixing device which is intended to admix a further gas to the target gas or waste gas flow to be introduced into a pressure line.