Fluid handling – Processes – Carbonated beverage handling processes
Patent
1994-06-30
1996-05-28
Walton, George L.
Fluid handling
Processes
Carbonated beverage handling processes
137 14, 137487, 137488, 137492, 13750512, 251 26, 251 28, F16K 3112, F15B 13042
Patent
active
055202063
ABSTRACT:
An exhaust reduction system for reducing gas emissions in pipeline controlling devices which operate control valves, which system adjusts and reduces the pressure of a control stream of gas from a conventional line pressure regulator to the control valves. In a preferred embodiment the exhaust reduction system operates in cooperation with the conventional line pressure regulator which reduces the pressure of the gas from the pipeline to a selected system pressure and includes a system high pressure regulator, a system low pressure regulator and in some cases, a selector relay, for further reducing the pressure of the incoming gas and channeling the gas at reduced pressure to at least one controller. The gas flow from a single controller (and from multiple controllers which is at the highest or lowest pressure as determined by the high or low discriminating pressure selector relay) is channeled to a gas pressure multiplier, where the gas pressure of a second volume of gas is increased in a selected ratio and introduced into the control valve at a selected low pressure for regulating the gas pressure in the pipeline. Accordingly, the control valve can be easily operated to regulate the pressure in the pipeline by manipulating adjusting knobs located in the system high pressure regulator and the system low pressure regulator and controlling the pressure of the control gas stream to the control valve with minimum gas control stream loss.
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Harrison John M.
Walton George L.
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