US1467059A - Valve control - Google Patents

Description

Sept. 4, 1923.

F. D. MOSES VALVE CONTROL Filed Jan. 14. 1922 Patented Sept. 4, 1923.

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FRANK D. MOSES, 0F TRENTON, NEW JERSEY.

VALVE CONTROL.

application nieu January 14, 1922. serial No. 529,160.

To f/ZZ culi-cm t may concern:

Be it known that I, FRANK D. Moses, a citizen ot the United States, and resident of Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Valve Controls, of which the following is a speciication.

The general object of my present invention is to provide simple and effective valve operating mechanism especially devised and adapted for operating the valves of aj water gas set which must be opened and closed in regular sequence in changing back and forth rom'the condition of operation known as the blast, to the condition of operation known as the make.

- The various features of novelty which characterize my invention are pointed out .with particularity in the claims annexed to and forming a part of this specification.

AFor a better understanding of the invention, however, and the advantages possessed by it,

reference should be had to the accompanying drawings and descriptive matter in which.- I have illustrated and described a preferred embodiment of my invention.

Ot the drawings:

Fig. l is a diagrammaticelevation of a water gas set;

Fig. 2 is a sectional elevation of the main control valve; and

Figs. 3. 4, 5, and 6 are views taken similarly to Fig. 2, each illustrating a different adjustment of the valve.

In thewater gas set conventionally and diagrammat-ically illustrated in the draw'- ings, A represents the generator, B the carburetor, C the superheater, D the hydraulically sealed wash box, E the stack, and F the stack valve at the top of the carburetor. The' generator and carburetor are provided with the usual top connection AB, and with a connection AB from the bottom of the generator to the" top of the carburetor, these connections being controlled by a hot valve J' which serves'to open the connection AB and closethe connection AB in one adjustment, and in its other setting, to open the connection AB and close the Vconnection AB. The carburetor and superheater are connected at their lower ends by the connectionBC.

G represents the valve controlling the admission of the blast air to the bottom of the generatorA, and H is a, valve controlling `the admission of the air blast tothe top of the carburetor B. I represents the valve controlling the supply of steam'to the generator A. The distributing valve IA is interposed between the outlet of the valve I and pipes i and 2 opening to t-he bottom and top, respectively, of the generator` A. The purpose of the distributing valve IA is to pass steam to the bottom of the generator A when the top connection AB between the generator and carburetor is open, and to pass steam to the top of the generator when the connection AB is closed, and the vconnection AB between the bottom of the generator and the carburetor is open. -As shown the proper adjustment of the valve IA is insured by connecting its operating arm I5 through a link I6 and arm I7 to the stem of the hot valve J so that when the latter is in the position in which the connection AB is open, the lvalve IA will close communication between valve I and pipe i2 while opening communication between valve I and pipe z", and when the hot valve .I is in position to open the connectionAB and close connection AB, the distributing` valve IA closes communication between valve I and pipe i', and opens communication between the valve I and pipe i.

Each of the various valves F, G, H, and I, is provided with an individua-l iuid pressure operating motor K shown as a cylinder containing a piston K connected to the stem of the corresponding valve, so that when each piston K lis at the top of its cylinder K the corresponding valve is open, and when at the bottom of the cylinder the valve is closed. The lower and upper ends of the motor cylinder K for the valve Il are connected by pipes F and I, respectively, to

ports in the casing ot a controlling valve I. The lower ends of the motor cylinders K for the valve G, H, and I, are similarly connected by conduits G', Il', and I', respectively, to corresponding ports in the casing of the valve L. The upper ends ofthe cylinders G, H, and I, are connected by pipes G2, H2, and I2, respectively, to corresponding ports in the casing of the valve L.

In the particular construction illustrated the valve L is a valve of the piston type comprising a cylindrical casing which is formed with a central port to which the motive fluid for operating the valves is supplied through a pipe yL' and with exhaust ports at its upper and lower ends to which are connected exhaust pipes L2 and L3, respectively.

The valve member working in the cylinder comprises two pistons M and M connected to a common operating stem M2 which projects through one end of the casing of the valve L. The valve stem M2 may be reclprocated manually or automatically as conditions require or make desirable. In the arrangement shown, the valve stem M2 is manuall actuated by means including a rack bar fla secured to the end of the valve stem, and in mesh with a spur gear M1 carried by a shaft which may be rotated by a hand wheel M5.

The ports in the casing of the valve member M to which the inlet and exhaust connections L, L2, and La, are connected and to which the various pipes F', F2; G', G2; H', H2; I and l2; are connected, are. so relatively disposed with respect to the movable valve pistons M and M that by a simple axial adjustment of these pistons in the valve casing, the various valves F G, H, and I will be operated in the proper sequence.

With the construction illustrated, when the valve members M and M are in their uppermost position, communication is established between the pressure fluid supply line L' and the pipes H', G', F', and l2. At this time the pipes H2, G2, F2, and I are connected to the exhaust pipe L2. In consequence with this setting of the valve L, which is shown in Fig. 2, air is supplied t0 the generator and to the carburetor B through the valves G and H, respectively. The stack valve F is open and the steam supply pipe l is closed. This is the blast condition, in which producer gas is genen ated in the generator and is burnt as generated to heat up the carburetor and superheater. By adjusting the valve members M and M into the position shown in Fig. 3 in which the piston M is between the ports connected to pipes H' and G', respectively, and the piston M' is between the ports connected to the pipes H2 and G2, respectively, the only change effected is to close the valve H and cut oii' the supply of air to the carburetor. By a further downward movement of the valve members M and M' into the position shown in Fig. 4, the valve G is closed, cutting off the supply of air to the generator. The next downward movement of the valve members M and M into the position shown in Fig; 5 closes all of the valves F, G, H, and l. The final downward movement of the valve members M and M' into the posi- 'tion shown in Fig. 6 does not open the stack valve F and the valves H and G supplying air to the carburetor and generator, respectively, but does open the steam valve li. With the controlling valve L in the setting shown in Fig. 6, the apparatus is in the condition for the make,'in which steam, ovra ing through the valve into the bottom or top of the generator A, depending on which of the outlets i and 2 is open, passes through the bed of glowing fuel in the generator and forms water gas which is carbureted in the carburetor B, and is fixed in the superheater C from which the gas passes into the wash box D. In normal operation, after each make period is completed, the valve members M and M are moved from the setting shown in Fig. 6 back to that shown in Fig. 2 through the settings shown in Figs. 5, 4, and 3, respectively, again putting the apparatus into the blast condition of operation.

It will be apparent to those skilled in the art that with the apparatus disclosed the various valves of a water gas plant which have to be opened and closed in shifting from the condition of blast to the condition of make, or vice versa, can be operated with ease and positiveness. The control valve can be located at any convenient station, and with it the various valves controlled are always operated in the proper sequenoe and there is no possibility of having any particular valve open or closed when the positions of the other valves are such that said particular valve should be closed or open, respectively. t will be apparent, of course, that the form of the control valve, and the form of the operating connections between it and the controlled valves can be modied, and in particular that the control valve can be used to control a smaller or larger number of valves than are controlled in the particular arrangement disclosed.

The motive'iluid supplied to the casing of the valve F through the supply connection L may beI any suitable liquid or gas, but preferably is a liquid as water,7 and in the construction conventionally` illustrated, the water for operating the valves is supplied to the pipe L from a hydraulic storage tank O into which ligid is pumped under pressure by a pump from a tank Q, which receives the waste liquid discharged by the ex haust pipes L2 and Ls from the control valve L. Advantageously the hot valve d',

which does not need to be operated in any determined sequence with the valves F, G, H, and l, is operated by pressure iuid supplied from the tank 0. As shown the cylinder K for operating the valve J has-its upper and lower ends connected by pipes J and J2 respectively, to suitably disposed outlets from a rotary-pilot or'oontrol valve R which is sup-plied with Huid from the tank 0 through the pipe R, and which has an exhaust port connected by a pipe R2 to the receiving tank Q3.

ile in accordance with the provisions4 of the statutes l have illustrated and described the best form of my present invention now known to me, it will be apparent -to those skilled in the art that changes may be made in the form of my invention without' departing from the spirit of my invention as set forth in the appended claims, and that certain features of my invention may sometimes be used to advantage without a corresponding use of other features.

Having now described my invention what I claim as new and desire to secure by Letters Patent, is: t

l. The combination with the air, stack, and steam valves of al water gas set, and a separate fluid pressure actuating motor for each of said valves, of .a single control valve having a plurality of different operative positions and connections for supplying motive iuid to and exhausting it from the diferent motors to open and close the first mentioned valves in predetermined sequence as said control valve is adjusted back and forth throu h its different operative positions.

2. he combination with the air, stack, and steam valves of a water gas set, and a separate fiuid pressure actuating motor for each of said valves, of a single control valve for said motors comprising a cylinder having motive fluid inlet and exhaust ports, and a series of axially distributed ports separately connected to the dierent motors, and a piston valve member in said cylinder whereby as said valve member is axially adjusted back and forthin Said cylinder, motive Huid is supplied to and permitted to exhaust from said motors as required to open and close the iirst mentioned valves in predetermined sequence.

3. The combination with the air, stack, and steam valves of a water gas set, and a separate actuating motor for each of said valves comprising a cylinder and a piston therein, of a single control valve for the different motors comprising a cylinder provided with a central motive iuid inlet and. exhaust ports at each end and with. an axially distributed series of ports separately vconnected to the opposite ends of the different mot-or cylinder-s, and a double piston valve in the control valve cylinder adapted to alternately establish and close communication between each of said distributed ports and the inlet and one of the exhaust ports as said piston valve is adjusted back and forth in the control valve cylinder, whereby on such adjustment of said piston valve, the first mentioned valves are opened and closed in predetermined sequence.

Signed at Trenton, in the county of Mercer, and State of New Jersey, this twelfth day of January, A.' D. 1922.

FRANK D. MOSES.

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