Fluid flow control system

• US 4,644,967 A
• Filed: 07/29/1985
• Issued: 02/24/1987
• Est. Priority Date: 11/25/1983
• Status: Expired due to Fees

• Current Assignee: Ve Service & Engineering Corp.
• Original Assignee: Vapor Energy, Inc.
• Inventors: Redus, Richard, Wyatt, W. Gerald
• Primary Examiner(s): Casaregola, Louis J.
• Application Number:
  US06/759,665
• Time in Patent Office: 575 Days
• Field of Search: 137/512.1, 137/599, 137/625.28, 60/39.53, 60/39.55, 60/39.3
• US Class Current: 137/599.05
• CPC Class Codes: F22B 1/26 Steam boilers of submerged-flame type, i.e. the flame being surrounded by, or impinging on, the water to be vaporised , e.g. water in sprays
• CPC Class Codes: F22B 35/00 Control systems for steam boilers for fluidized bed boilers F22B31/0076; regulation or control of steam power plants F01K7/00; for regulating feed-water supply F22D; for controlling superheat temperature F22G5/00; control of combustion F23N; regulating or controlling in general G05
• CPC Class Codes: F23N 1/027 using mechanical means
• CPC Class Codes: F23N 2237/20 one or more bypass conduits
• CPC Class Codes: F23N 2241/10 Generating vapour
• CPC Class Codes: Y10T 137/87298 Having digital flow controller

Abstract

Disclosed is a dual output, pressure responsive, adjustable, fluid flow control system. It includes first and second flow networks coupled in parallel flow communication, the networks each have first and second flow paths, and the first flow path of flow networks has an adjustable flow control valve for regulating the flow therethrough. Similarly, the second flow path of said networks has a pressure responsive valve disposed therein for maintaining substantially constant flow therethrough with variations in fluid flow pressure therein. Also included are feed means for supplying fluid to said flow networks, and means for receiving fluid from said fluid flow networks, as well as means for engaging and disengaging the second flow network to said fluid supply means for selectively permitting the flow therethrough and facilitating a dual flow output from the system.

Claims

1. A dual output, pressure responsive, adjustable, fluid flow control system comprising:

first and second flow networks coupled in parallel flow communication;

said first and second flow networks each comprising first and second flow paths;

said first flow path of said flow networks each comprising an adjustable flow control valve for regulating the flow therethrough;

said second flow path of said networks comprising a pressure responsive valve disposed therein for maintaining substantially constant flow therethrough with variations in fluid flow pressure therein;

means for supplying fluid to said flow networks;

means for receiving fluid from said fluid flow networks; and

means for engaging and disengaging said second flow network to said fluid supply means for selectively permitting the flow therethrough and facilitating a dual flow output.

2. The fluid control system as set forth in claim 1 wherein said pressure responsive valve comprises a first fixed orifice and a second flexible orifice contiguous thereto adapted for flexing in response to fluid flow pressure flowing thereagainst.

3. The fluid flow control system as set forth in claim 1 wherein said adjustable flow control valves comprise needle valves adapted for permitting a select magnitude of flow therethrough for a select pressure of said fluid.

4. The fluid flow control system as set forth in claim 1 wherein said means for supplying fluid to said flow networks comprises a flow conduit connected therebetween and a remotely actuatable flow control valve for permitting the flow therethrough.

5. The fluid flow control system as set forth in claim 1 wherein said means for engaging and disengaging said second flow network to said fluid supply means comprises a flow conduit coupling said first and second flow networks and a flow valve disposed therein adapted for selectively permitting the flow therethrough.

6. The fluid flow control system as set forth in claim 5 wherein said flow control valve is remotely actuatable in conjunction with the selection of flow volume from said system.

7. The fluid flow control system as set forth in claim 1 wherein said control system is adapted for the flow of water therethrough and further including means for coupling to a vapor generator for supplying select volumes of water thereto in a dual output pressure responsive manner facilitating the efficient operation thereof.

8. The fluid flow control system as set forth in claim further including a control unit for control of said fluid supply means and control of said means for engaging and disengaging said second flow network to said fluid supply means for selectively permitting flow therethrough.

9. The fluid flow control system as set forth in claim wherein said means for engaging and disengaging said second flow network comprises a flow conduit between said first and second flow networks and a remotely actuatable valve disposed therein, said valve being coupled to said control unit for the remote actuation thereof.