Mounting means for fluid pressure transmitters

• US RE34,610 E
• Filed: 06/23/1992
• Issued: 05/17/1994
• Est. Priority Date: 11/19/1990
• Status: Expired due to Term

• Current Assignee: Tyco Valves & Controls Incorporated (Emerson Electric Company)
• Original Assignee: Keystone International Holdings Corp. (Emerson Electric Company)
• Inventors: Chou, Alan F., Miller, Randall J.
• Primary Examiner(s): Fox, John C.
• Application Number:
  US07/903,141
• Time in Patent Office: 693 Days
• Field of Search: 137/269, 137/270, 137/597, 137/884, 73/756
• US Class Current: 137/597
• CPC Class Codes: G01F 1/36 the pressure or differential pressure being created by the use of flow constriction
• CPC Class Codes: G01F 15/185 Connecting means, e.g. bypass conduits
• CPC Class Codes: G01L 19/0015 using switching means
• CPC Class Codes: Y10T 137/5196 Unit orientable in a single location between plural positions
• CPC Class Codes: Y10T 137/87249 Multiple inlet with multiple outlet

Abstract

A mounting plate (20) is positioned between a manifold (18) and a pair of fluid pressure transmitters including a differential pressure transmitter (22) and a gauge pressure transmitter (24). The fluid pressure from high and low pressure taps or lines (14, 16) placed on opposite sides of a flow restriction (12) of a main flow line (10) is measured and transmitted to a remote location by the transmitters (22, 24). The mounting plate (20) has low and high pressure ports (62, 64) for differential pressure transmitter (22) and a low pressure port (66) for a gauge pressure transmitter (24). A connecting fluid passage (68) connects the low pressure ports (62, 66) and a block valve (80) is movable between open and closed positions to permit or block fluid communication between the ports (62, 66) and fluid communication between the transmitters (22, 24). One pair of ports (66, 76) are arranged in symmetrical relation to the other pair of ports (62, 64) to permit the mounting plate (20) to be utilized with the gauge pressure transmitter (24) for measurement of either a low pressure or a high pressure.

Claims

1. A fluid measuring and transmitting assembly for transmitting to a remote location measurements of fluid pressure in a main flow line in fluid communication with a pair of fluid taps on opposed sides of a reduced diameter orifice in said main flow line;

said fluid measuring and transmitting assembly comprising;

a valve manifold having a high pressure flow passage and a low pressure flow passage in fluid communication with said pair of fluid taps;

a .[.transmitting.]. .Iadd.plate-like pressure transmitter .Iaddend.mounting .[.plate.]. .Iadd.adapter .Iaddend.mounted on .[.said valve.]. .Iadd.the .Iaddend.manifold and .Iadd.capable of supporting two pressure transmitters side-by-side, said adapter .Iaddend.having high and low pressure flow passages therein in fluid communication with said high and low .Iadd.pressure .Iaddend.flow passages in said manifold;

a differential pressure transmitter mounted on said mounting .[.plate.]. .Iadd.adapter .Iaddend.and having high and low pressure flow passages therein in fluid communication with said high and low .Iadd.pressure .Iaddend.flow passages in said mounting .[.plate.]. .Iadd.adapter .Iaddend.for measuring the fluid pressure differential between said high and low .Iadd.pressure .Iaddend.flow passages .Iadd.and for transmitting the fluid pressure differential to a remote location.Iaddend.; and

a gauge pressure transmitter mounted on said mounting .[.plate.]. .Iadd.adapter .Iaddend.having a flow passage in fluid communication with a predetermined one of said high and low .Iadd.pressure .Iaddend.flow passages in said mounting .[.plate.]. .Iadd.adapter .Iaddend.for measuring .Iadd.the pressure in one of said high and low pressure passages .Iaddend.and transmitting the measurement to a remote location.

2. A fluid measuring and transmitting assembly for transmitting measurements of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 1;

said gauge pressure transmitter being in fluid communication with said low pressure flow passage in said mounting .[.plate.]. .Iadd.adapter .Iaddend.downstream of said differential pressure transmitter.

3. A fluid measuring and transmitting assembly for transmitting .[.measurement∫

3 .Iadd.measurements .Iaddend.of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 1;

said gauge pressure transmitter being in fluid communication with said high pressure flow passage in said mounting .[.plate.]. .Iadd.adapter .Iaddend.downstream of said differential pressure transmitter.

4. A fluid measuring and transmitting assembly for transmitting measurements of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 1;

said mounting .[.plate.]. .Iadd.adapter .Iaddend.having a block valve in said flow passage .Iadd.in .Iaddend.communication with said gauge pressure transmitter.Iadd., said valve being .Iaddend.movable between open and closed positions therein.

5. A fluid measuring and transmitting assembly for transmitting measurements of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 1;

said mounting .[.plate.]. .Iadd.adapter .Iaddend.including an additional flow passage to permit said mounting .[.plate.]. .Iadd.adapter .Iaddend.selectively to be connected between said manifold and said transmitters with said gauge pressure transmitter in fluid communication with the other of said high and low flow passages.

6. A fluid measuring and transmitting assembly for transmitting .[.measurement.]. .Iadd.measurements .Iaddend.of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 1 .Iadd.further including.Iaddend.;

means connecting said manifold to a side of said main flow line and supporting said manifold, mounting g .[.plate.]. .Iadd.adapter .Iaddend.and pressure transmitters therefrom.

7. A fluid measuring and transmitting assembly for transmitting measurements of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 1 .Iadd.further including.Iaddend.;

a stand adjacent said main flow line supporting said manifold, mounting .[.plate.]. .Iadd.adapter .Iaddend.and pressure transmitters thereon.

8. A fluid measuring and transmitting assembly for transmitting measurements of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 1;

said mounting .[.plate.]. .Iadd.adapter .Iaddend.being of a generally rectangular cross section and defining parallel inner and outer planar surfaces;

said inner planar surface being in face to face contact with said manifold and said outer planar surface being in face to face contact with said gauge pressure transmitter and said differential pressure transmitter.

9. A fluid measuring and transmitting assembly for transmitting measurements of .Iadd.high and low .Iaddend.fluid g .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim 8;

said mounting .[.plate.]. .Iadd.adapter .Iaddend.having a first pair of ports therein extending between said inner and outer surfaces and in fluid communication with said high and low .Iadd.pressure .Iaddend.flow passages in said manifold, said differential pressure transmitter being in fluid communication with said first pair of ports;

said mounting .[.plate.]. .Iadd.adapter .Iaddend.having a second pair of ports extending therethrough between said inner and outer surfaces .[.and adapted for being in fluid communication with aid high and low flow passage in said manifold.].,

a flow passage in said mounting adapter extending between the low pressure port of said first pair of ports and a selected one of the other pair of ports, a block valve in said flow passage for selectively blocking fluid communication between .Iadd.said low pressure ports.Iaddend.;

said gauge pressure transmitter being in fluid communication with .[.a.]. .Iadd.said .Iaddend.selected one of said second pairs of ports to permit measurement of a selected high or low pressure. .[.

10. A fluid measuring and transmitting assembly for transmitting measurements of fluid pressure in a main flow line as set forth in claim 9;

said gauge pressure transmitter being connected to said low pressure port of said second pair of ports;

a flow passage in said mounting plate extending between the low pressure ports of said first and second pairs of ports, and a block valve in said flow passage between said low pressure ports for selectively blocking fluid communication between said low pressure ports..].

11. A fluid measuring and transmitting assembly for transmitting measurements of .Iadd.high and low .Iaddend.fluid .[.pressure.]. .Iadd.pressures .Iaddend.in a main flow line as set forth in claim .[.10.]. .Iadd.9.Iaddend.;

said mounting .[.plate.]. .Iadd.adapter .Iaddend.adapted for rotation of 180°

in a plane perpendicular to the longitudinal axes of said .Iadd.high and low pressure .Iaddend.flow passages and subsequent connection to said manifold with said flow passage and low pressure port in said mounting .[.plate.]. .Iadd.adapter .Iaddend.being reversed and connected in fluid communication with said high pressure flow passage of said manifold thereby to permit measurement of the high pressure in said flow line by said gauge pressure transmitter.

12. Apparatus for measuring fluid pressure in a main flow line and for transmitting the measurements to a remote location from a pair of fluid pressure lines on opposed sides of a reduced diameter orifice in said main flow line;

said apparatus comprising;

a valve manifold having a straight high pressure flow passage and a straight low pressure flow passage therethrough in parallel relation to each other and in fluid communication with said pair of fluid pressure lines to said main flow line;

a mounting plate secured to said manifold and having straight high and low pressure flow passages in straight axial alignment with said high and low .Iadd.pressure .Iaddend.flow passages in said manifold, said mounting plate having inner and outer planar surfaces with said inner planar surface being in contact with said manifold;

a differential pressure transmitter mounted on said outer planar surface of said mounting plate and having high and low pressure flow passages in axial alignment with said high and low .Iadd.pressure .Iaddend.flow passages of said mounting plate for measuring the differential fluid pressure between said high and low .Iadd.pressure .Iaddend.flow passages and transmitting the measurement to a remote location; and

a gauge pressure transmitter mounted on said outer planar surface of said mounting plate downstream of said differential pressure transmitter and in fluid communication downstream with a predetermined one of said high and low .Iadd.pressure .Iaddend.flow passages in said mounting plate for measuring the fluid pressure therein and transmitting the measurement to a remote location.

13. Apparatus as set forth in claim 12 wherein said gauge pressure transmitter is in fluid communication with said low pressure flow passage, and a connecting flow passage in said mounting plate extends between the low pressure flow passage for said differential fluid pressure transmitter to said gauge pressure transmitter for transmitting fluid pressure thereto.

14. Apparatus as set forth in claim 13 wherein means permit said mounting plate to be removed from said manifold and rotated 180°

in a plane perpendicular to the longitudinal axes of said flow passages for subsequent mounting on said manifold in fluid communication with said low pressure and high pressure fluid passages of said manifold.

15. Apparatus as set forth in claim 12 wherein a block valve is mounted on said mounting plate for movement between open and closed positions relative to said connecting flow passage for selectively blocking fluid communication to said gauge pressure transmitter.

16. Apparatus as set forth in claim 12 wherein one half of said mounting plate has a first pair of ports extending therethrough in parallel relation to each other to provide said straight high and low pressure flow passages therein in fluid communication with said differential pressure transmitter;

and

the other half of said mounting plate has a second pair of ports extending therethrough positioned on said plate in a generally symmetrical relation to said first pair of ports one of said second pair of ports being in fluid communication with said gauge pressure transmitter, the other of said second pair of ports being inactive and not in fluid communication with said gauge pressure transmitter.

17. Apparatus as set forth in claim 16 wherein said second pair of ports are adapted to be positioned in straight axial fluid communication with said high and low flow passages of said valve manifold and in straight axial alignment with said high and low flow passages of said differential pressure transmitter upon rotation of said mounting plate 180°

in a plane perpendicular to the longitudinal axes of said flow passages.

19. The mounting plate as set forth in claim .[.17.]. .Iadd.18 .Iaddend.wherein said second pair of ports are adapted to be positioned in straight axial alignment with said low and high fluid passages of said valve manifold and said one of said fluid pressure transmitters upon rotation of said mounting plate 180°

in a plane perpendicular to the longitudinal axes of said flow passages.

20. The mounting plate as set forth in claim .[.17.]. .Iadd.18 .Iaddend.wherein

a block valve is mounted on said mounting plate for movement between open and closed positions relative to said connecting flow passage.

18. A transmitter mounting plate adapted to be positioned between a valve manifold and a pair of fluid pressure tansmitters with the valve manifold and one of said fluid pressure transmitters having straight axially aligned low and high fluid passages therein in fluid communication with a pair of fluid pressure taps on opposed sides of a reduced diameter orifice in a main flow line;

said mounting plate comprising;

a body of a generally rectangular cross section and being of a generally rectangular shape as viewed in plan, said body having an inner planar surface adapted to be positioned in face to face contact with said manifold and an outer planar surface adapted to be positioned in face to face contact with said pair of fluid pressure transmitters;

a first pair of ports extending through the plate in parallel relation to each other to provide straight high and low flow passages therein adapted to be in straight fluid communication with said low and high flow passages in said valve manifold and one of said fluid pressure transmitters; and

a second pair of ports extending through said plate in parallel relation to each other and positioned on said plate in a generally symmetrical relation to said first pair of ports, one of said second pair of ports being in fluid communication with the other of said fluid pressure tansmitters and the other of said second pair of ports being inactive and not in fluid communication with said other of said fluid pressure transmitters; and

a connecting flow passage extends between one of said ports of said first pair and one of said ports of said second pair.