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Gas discharge and/or distribution system

  • US 4,620,508 A
  • Filed: 09/25/1985
  • Issued: 11/04/1986
  • Est. Priority Date: 09/25/1985
  • Status: Expired due to Term
First Claim
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1. A system for the substantially unrestricted discharge of a gas selected from hot gas, combustible gas and hot combustible gas from a source of said gas to at least two units of equipment which use the gas, the system comprising at least said two units, temperature-sensing means associated with one unit for generating a signal representative of the temperature of operation of at least part of said one unit, a first conduit for conveying hot and/or combustible gas to said one unit, a first valve means in said first conduit for regulating the gas-flow therethrough to said one unit, means responsive to a signal from the temperature-sensing means to control the position of the first valve means between its maximum open and maximum closed positions in accordance with variations in the said signal, a second conduit connected to the first conduit upstream of the first valve means, said second conduit being connected for conveying gas to a second unit, a second valve means in the second conduit, and means operative to maintain a selected set pressure in the second conduit at a position upstream of the second valve means to control the position of the second valve means between its maximum open and maximum closed positions in accordance with the pressure in the second conduit upstream of the second valve means, and wherein the maximum open position of each valve means permits a selected maximum flow-rate of gas to each respective unit substantially independently of the flow rate to the other unit(s) and the maximum closed position of the valve means permits the substantially unrestricted discharge of gas from the source via at least one valve means.

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