US1199567A

US1199567A - Fluid-pressure regulator.

Info

Publication number: US1199567A
Authority: US
Inventors: Raymond M Kellogg; James K Crowell
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-04-14
Filing date: 1916-04-14
Publication date: 1916-09-26
Anticipated expiration: 1933-09-26

Description

R. M. KELLOGG &1. K. CROWEL.

FLUID PRESSURE REGULATOR.

APPLICATION FILED APR.14. 191s.

1 1 99,567. Patented Sept. 26,1916.

"4 SHEETS-SHEET 1.

R. M. KELLOGG &1. K. CROWELL.

FLUID PRESSURE REGULATOR.

APPLICATION F|LED APR.14. 1915.

Patented Sept. 26, 1916.

4 SHEETS-SHEET 2.

R. M. KELLOGG 6L I. K. CROWELL.

FLUID PRESSURE REGULATOR.

APPLICATION FILED APR.14. |916.

1,1 99,5 67. Patentedsept.. 26, 1916.

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FLUID PRESSURE REGULATOR.

APPLICATION FILED APII. I4. 191s.

1,199,567. Patentedsept. 26,1916.

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I, nAriroNn M. KELLOGG, or MOUNT FLUID-PRESSURE REGULATOR.

i To all 'whom it may concern:

Be it known that we, RAYMOND M. KEL- LOGG and J Aims K. Ciiowiiim, citizens of the United States, residing at Mount Vernon andl Rye, respectively, both in the county of Westchester and State of New York, have invented certain new and usefulf Improve- Y. ments in F luid-Pressure Regulators; and

we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable Others skilled in the art to which it appertains to make and use the same.

The present invention relates to improvevments in fluid pressure regulators,- and has for its principal object to equip fluid pressure regulators,vparticularly of the type of the Reynolds pressure controlling system as set orthin the U. S. Patent No. 843,174, issued .February 5, 1907, with a controlling device for permitting of an increased pressure in the low pressure main during the Y hours of high consumption.

More particularly stated, the invention contemplates thek use of a Venturi tube arranged to by-pass a valve in the low pressure main and the throat of which is in communication with the low pressure auxiliary ments, which will more fully hereinafterV appear, over the U. S. patents granted to Ernest F. Lloyd, notably the Patent No. 1,014,830, for a pressure increaser?, granted January 16, 1912; and in which the Venturi tube is arranged `,to by-pass a valve in the low pressure main, it being in communication at its throat and one mouth through separate pipes with opposite sides of a diaphragm 'in a load drum.

In the accompanying drawings' forming a part of this application, andinl which similar reference symbols indicate corresponding parts in the several views: Figure 1 is a cross sectional View, with parts shown inelevation, of a forni of fluid pressure regulator equipped with a control device as constructed, in accordance with the present invention. Fig. 2 is a similar view of a modied forni of fluid pressure regulator. Fig. 3 is a longitudinal sectional view through a pressure controlling system haying an auxiliary low pressure regulator in combination with the controlling device -Specication of Letters Patent; Application iued April 14, 191s. serial No. 91,245.

vniiNON, AND rms i; cnOwE'LL, or aan, NEW

YORK. f

Patented sepa 2e, 191e.

, forming the present invention.` Fig-4 is an elevational view of the .present form of the Reynolds regulator' illustrating a Venturi control device as constructed after our invention; and Fig. 5 is a sectional view, withl partin elevation, of the device lshown in Referring more particularly .to Fig.l 1, 1 designates the high pressure and 2 the low pressure mains', passage between which is under the control of the

valves

3, 3, on the common stein 4.-. A. leverf is connected to the stem 4 at'one end and carries weights 6` on its other end, which constantly tend to raise the valvesm3 3, away rom their seats 'to permit iiow of' the luidfrom the high ressure main 1 to the low pressure main 2.

caring on the upper end of the valve stem 4 is a control rod 7 connected to be operated from a diaphragm 8, which provides a compartment 9 .thereahove in communication with the low pressure main 2 through a pipe 10 which is under the control of a `valve- 11. When the pressure in the main 2 exceeds a predetermined degree, for lwhich the weights 6 have. been previously set, the pres'- surebeing in open communication with the chamber 9 will distend the diaphragm 8,

thereby moving the control rod 7 down, which will -similarly force the valve stem 4 downwardly and the valves, 3, 3, onto their seats. This mechanism is of the usual construction andneeds no further description here. In accordance with the present invention a valve 12 is located in the low pressure main 2-and icy-passing said valve is af Venturi tube 13, the liow through which isregulated by valves 14 and 15. At the throat 16 of the Venturitube 13 is connected a pipe 17, including a valve 18, and which places the throat 16 in communication with the chamber 9 above the diaphragm 8. If it is desired to maintain a constant pressure in the main.2 the valve 18 is closed, as may likewise be the valveslll and l5, whilejthe valve 11 in the pipe 101is open, as is also the valve 12 in the main 2, placing the llow pressure main in direct communication with the chamber 9 therethrough. lt will thus be apparent that the regulating system will operate in the usual manner, and the

valves

3, 3, willhe opened and closed` accordingly as the pressure Jfalls and rises in the low vpressure main 2. If it is' desired that the pressure in the `main 2 he increased during the hours of high consumption, the valvell is to be closed, thusfshuttlng E communication between the low pressure main 2 and chamber 9 through the pipe 10. The valve 12 is closed partially and the valves 14, and 18 are opened. The cutting down of the valve 12 will induce a flow of the iuid .through the Venturi tube 13 andyin accordance with main 2, and as the throat 16 is in communication with the chamber 9 through the pipe 17, the pressure in such chamber will be thus comparatively reduced as over the pressure which would exist in the pipe 10 in accordF ance with the usual' method of operation. .The xweights 6 lwill, therefore, when the Venturi tube 13 is in use, encounter a reduced pressure in the chamber 9, and will therefore be effective to open the

valves

3, 3, wider and permit a relatively higher pressure to obtain in the low pressure main 2. By the mechanism herein shown and described it will be apparent that the system may he readily changed from one method of regulation to that of the other by a simple manipulation of a few valves.

Referring now in detail to Fig. 2, a modified form of regulation is here shown in which 20 designates the high pressure and 21 -the low pressure sides of the system, passage through which is under the control of the valve 22. Such valve 22 is carried on the lower end of the stem 23 supported o'n a diaphragm 24 in a casing 25, and normally operative under the influence of a weight 26 to carry the diaphragm 24 and stem 23 downwardly to move the valve 22 from its seat and permit flow from the high pressure to the low pressure sides of the system. Beneath the diaphragm is a chamber 27 in communication with a lbv-pas's 28 with the low pressure main 21,. AWhen the pressure in .the main 21, which is communicated through the by-pass 28 to the chamber 27, exceeds a degree sufficient to raise the weight 26 associated with the diaphragm 24, the valve 22 will be partially or wholly closed `and the pressure in the main 21 correspondingly reduced. The by-pass 28 is preferably under the control of the valve 29 which is closed when the Venturi tube arrangement is in operation, or this by-pass 28 may be plugged. In `the low pressure main 21 is a valve 30 by-passed by a Venturi tube 31 provided with

valves

32 and 33. To the throat of the Venturi tube 31 is connected a pipe 34 including a valve 35, ,and in communication with the chamberf27.v vrThe operation of this modifiedregulator is as substantially described above in connection with Fig. 1 and needs but briefeXpla-nation here. 'If it is desired that the pressure in the main 21 he increased during the hours requiring greater consumption, the valve 30 is cut' down to induce a iow fromthe low pressuremain 21 through the Venturitube 31, the

valves

32 and 33 being, of course, open.` The valve 29 is now closed, or the by-pass -28 plugged up to cut out the by-pass 28 'and the valve 35 in pipe 34 opened, placing the throat of the Venturi tube 31 in freeV communication' with the chamber 27. The pressure in the chamber 27, which is now received from the throat `of the Venturi tube 31, is substantially reduced over that received directly from the low pressure main 21 through the by-pass 28, and consequently theweight 26 will be effective to open the valve 22 wider and permit a greater pressure to escape from the high pressure side 20 to the low pressure main 21 to satisfy the increased consumption demands.

.Considering now thel system illustrated in Fig. 3, 40 designates the highv pressure and 41 the low pressure mains. 42, 43, are the diaphragm 45, is in open communicationv with the low pressure main 41 as illustrated. The lever 46 is fulcrumed to rock in a bracket 48, and carries a weight 49 normally tending to'depress such lever and carry the valves 42, 43,`away from their seats. At 50 is illustrated an auxiliary regulator 4in communication through a pipe 51 under the control of a valve 52 with the low pressure main 41. The auxiliary regulator 50 includes a diaphragm 53 connected by a rod 54 to the free end of the lever 46. A Venturi tube 55 is shown to by-pass the valve 56 located in the low pressure main 41, and provided with entrance and exit valves 57 and 58. The throat in the Venturi tube 55 is connected by a pipe 59 having a valve 60 with the pipe 51 connecting the low presrsure main 41 with the auxiliary regulator 50.

opposed by the weight 49 on the lever 46 f through the rod 54 and diaphragm 53.

'Whenever the pressure in the main 41 ex ceeds the degree for which the system is'set, such pressure will raise the diaphragm 53, rod 54 and lever 46, thus swinging the latter to close the valves 42, 43, This operation of closing the valves 42, 43, is also assisted by the low pressure in the. main 41 operating against the diaphragm'45. By closing the valve52 and opening the valve 60 the Venturi tube 53 will thereby be cut in circuit with the main 41, the valve 56 being partially closed to induce a ii'ow therein in the manner above described for the'apparatus shown in IEigs. 1 and 2. The pressure in the throat of the Venturi tube 55 being thus lower than that'in the main 41, a higher pressure will be permitted to build up in the low pressure main 41 before the auxiliary regulator 50 will be actuated to close the valves 42, 43.

Referring now to Figs. 4 and 5, wherein` is illustrated the improved device as applied to the Reynolds regulator, 61 is the high pressure and 62 the low pressure mains. The main valves are indicated at 63 and 64 as being carried on a stem 65 projecting up through a diaphragm 66. The diaphragm 66 is disposed in a casing 67 arranged in communication with the atmosphere above said diaphragm, and in communication through passages 68 with the low pressure main 62- beneath the diaphragm. Above the casing 67 the valve stem 65 is coupled to a lever 69 fulcrumed at 70, and in connection at its outer end with a sleeve 71 extending down and fitting over a rod 72. A flange 73 fastened to the rod 72 supports weight 74 and is adapted to support the sleeve 71. The rod 72 operates through an opening in the top of a casing 76 in which is a diaphragm 77 connected to actuate the rod 72. 1n the casing 76, below the diaphragm 77, is a chamber 78 in communication, by means of a pipe 79, with a pipe 80 extending between an auxiliary high pressure regulator 81 and an auxiliary low pressure regulator 82. In the pipe 80'is a needle valve 83 for controlling passage of the fluid from one auxiliary regulator 81 to the other auxiliary regulator 82. The regulator 81 is in communication through a pipe 84 with the high pressure main 61, and

is under the control of a valve 85. The pipe' 84 is arranged to be closed by a valve 86 carried by a lever 87 connected to a diaphragm 88 in the regulator 81. 89 is a spring operating to depress the diaphragm 88 and unseat the valve 86, s uch spring being regulated to operate at any required pressure by an adjusting device 90.

The low pressure auxiliary regulator 82 includes a valve 91 for closing the pipe 80,

which valve"is supported on one end of a lever l92 connected to be actuated from a diaphragm 93 under the influence of a weight or other counterbalance 94. The auxiliary regulator 82 is in communication by a pipe 95 with the low pressure main 62, passage therethrough being regulated by valve 96. At 97 and 98 are hand manipulated valves in the high and low pressure mains, respectively'. By-passing the valve 98 is a Venturi tube 99, having a throat 100 connected to auxiliary regulator 82 with the main 62, are

open. The Huid from the main 61 will, therefore, enter the auxiliary high pressure regulator 81 through the valve 86 therein until such fluid accumulates in the regulator in suHcient quantities and under a pressure suicient4 to raise the diaphragm 88 therein in opposition to the spring 89;

which action will oscillate the lever 87, press-` ing the valve 86 to its seat and preventing further ingress of the fluid. yThe valve 83, however, being open to the required degree, the Huid will pass from the auxiliary regulator` 81 through the pipe 80 and its pressure will be exerted in the pipe 79, and thence to the chamber 78 in the casing 76 beneath the diaphragm 77 therein.

The Huid will pass through the pipe 80 to the low pressure auxiliary regulator 82, and through the valve 91 therein to an extent controlled by the weight 94, and will pass through the pipe 95 to the low pressure main 62. The presence of the uid in predetermined quantity and under predetermined pressure in the pipe 80 will operate normally to hold the pressure in pipe 62 constant, but any decrease in the pressure in pipe 80, due to the opening of valve 91 in its endeavor under the action of weight 94 to maintain a constant pressure in pipe 62 under an increased demand, will lower the pressure in' pipe 79 and so in the casing 76, which will operate to allow the diaphragm 77 to lower, as likewise the connected rods 72 and 71, thereby oscillating the lever 69 to lower the stem 65 and increase the opening of the valves 63, 64.

Whenever the pressure in the main 62 rises beyond a certain degree, the diaphragm 93 in the auxiliary low pressure regulator 82 will be raised, the lever 92 oscillated, and the valve 91 moved to close entrance of further fluid from the pipe 80. The pressure in the pipes 80 and 79, and in the chamber 78 of the casing 7 6, will accumulate and raise the diaphragm 77 and connected parts to close the valves 63 and 64. The valves 63, 64, are assisted to close when the low pressure which is in communication through the perforation 68 with the lower side of the diaphragm 66, accumulates.

The pressure building up in the pipes 79 and 8O will cause a back pressure inthe high pressure auxiliary regulator 81 and .will

operate upon/the diaphragm 88 and swing I the lever 87 to close the valve 86, thus preventing further entrance of fluid from the main 61. The main 62 will thereby be cutp ragm 93 and lever 92 and opening valve 91, which will form an open passage vfor the escape of the accumulated pressure in the pipes 8O and 79 and in the chamber 78. When the pressure is so relieved the diaphragm 77 will descend, as will also the a'ssociated valves 63 and 64, thus again placing the mains in open communication.

If it is desired that the pressure in the main 62 be increased Whenever the demand increases, as at the hour of high consumption, the V'low pressure regulator 82 instead of being arranged in direct communication with the pressure in the main 62, is cut into the throat 100 of the Venturi pipe 99 by opening the valve 102, the.valve 96 inthe pipe 95 being closed. The valve 98 is also partially closed to induce a iiow through the Venturi tube 99, and the greater the flow through such tube the lower will be the pressure at the throat 100, and consequently the lower in the outlet of the auxiliary low pressure regulator 82, thereby maintaining the valve 91 open to keep the chamber 78 in the casing 76 freer of pressure and the valves 63 and 64 wider open. It will thus be -appreciated that the greater the consumption the greater will be the velocity of iow in the Venturi tube 99, and the lower will be the pressure at the throat 100, thus having the eilect of opening the valves 63 and 64 wider as the demand for uid increases; and which is in proportion to a pressure, which is that at the throat 100 of the Venturi tube 99, appreciably below that which obtains in the low pressure main 62, and which proportionately decreases rapidly as the demand increases.

The improved regulating system as herein constructed, may be operated directly from the pressure in the low pressure main ,or may be changed over to the Venturi arrangement by the simple operation of two or more valves, thus yielding a system which will have a high range of pressure regulation and which may be installed on existing systems at small cost.

It is obvious that those skilled in the art may vary the details of construction and arrangements of parts without departing from the spirit of our invention, and therefore we do not wish to be limited to such features except as may be required by the claims.

We claim:

1. In an apparatus of the character described, the combination of high and low pressure mains, valve means controlling passage between` said mains, a regulator -connected to said valve means, means lacing said regulator in communication with the low pressure main, valve means foricontrol- `ling said last-named means, a b -pass arranged in communication with sai low pressure mainand having a pressure reducing portion therein, .means placing said regulator in communication with the pressure reducing. portion of said'by-pass, and means in said last-named means for controlling passage therethrough, substantially as described.

2. In 4an apparatus of the character described, the combination of high and low pressure mains, valve means controlling passage between said mains, a regulator connected to operate said valve means, a conduit placing the regulator in communication with said low pressure main, valve means included in said conduit, a Venturi 'tube arranged in communication with said low pressure main, a conduit connecting said regulator and the throat of said Venturi tube, and valve means included in said conduit for controlling passage there-4 through, substantially as described.

3. In an apparatus of the character described, the combination ofhigh and low pressure mains, valve means for controlling passage between said mains, a regulator connected to control said valve means, a conduit placing said regulator in communication with the low pressure main, a valve included in said conduit, va valve in said low pressure main, a tube by-passing said last-named valve and having a onstricted throat, a conduit placing the constricted throat of said tube in communication with said regulator, and a valve in saidv lastnamed conduit for controlling passage therethrough, substantially as described.

4. In anapparatus of the character described, the combination of high and low pressure mains, a valve controlling passage between said mains, a casing, a dia-- phragm in said casing in connection to control the operation of said valve, a chamber. to one side of said diaphragm, a conduit placing said chamber in communication with the low pressure main, a valve in eluded in said conduit, a valve in said low pressure main, a Venturi tube by-passing said last-named valve, a conduit connecting the throat of said Venturi tube with said diaphragm chamber, and a valve included in said last-named conduit, substantially as described.

5. In an apparatus of the character described, the combination of high and low pressure mains, valve means controlling munication through one of said auxiliary regulators with said Valve-operating regulator, valve means located in said conduit, a Venturi tube arranged in communication with said low pressure conduit, a conduit connecting the throat of said auxiliary regulators, and valve means located in said last-named conduit, substantially as described.

6. In an apparatus of the character described, the combination of high and low pressure mains, valve means controlling passage between said mains, a valve-operating regulator, high and low pressure auxiliary regulators, conduits connecting said auxiliary regulators and said valve-operating regulator, a conduit placing said low pressure main in communication with the low pressure auxiliary regulator, valve means included in said conduit, a Venturi tube arranged in communication With said low pressure conduit, a valve in said low pressure main for inducing a ow through said Venturi tube, a conduit connecting the throat of said tube with said last-named conduit, and a valve included in said lastsubstantially as described, the combination of high and low pressure mains, valve means controlling passage between said mains, a. valve-operating regulator including a casing, a diaphragm in said casing and a chamber to one side of said diaphragm, auxiliary regulators, conduits placing said auxiliary regulators in communication with said chamber, conduits placing said auxiliary regulators in communication with the high and low pressure mains, valve duits, a Venturi tube arranged in circuit with said low pressure main, a hand-operated valve in said low pressure main for inducing a flow through said Venturi tube, a conduit arranged between the said tube and one of said auxiliary regulators, and a valve situated in said last-named conduit, substantially as described.

In testimony whereof, We aliix our signatures.

RAYMOND M. KELLOGG. JAMES K. CROWELL.

means in said conthroat of l I'