US969884A - Gas-producer regulating-valve. - Google Patents

Description

H. I. LEA.

GAS PRODUCER REGULATING VALVE.

APPLICATION TILED 33.14, 1907.

969,884.. S Patented Sept. 13,1910.

WITNESSES: [NI 'LNTOA.

A TTORNEYIM- erupts Parana anion.

HENRY I. LEA, OF PITTSBURG, PENNSYLVANIA, ASSIU'NOR TO THE WESTINGHOUSE MACHINE COMPANY, A CORPORATION OF PENNSY LVANIA.

GAS-PRODUCER REGULATING-VALVE.

Specification of Letters Patent.

Patented Sept. 13, 1910.

Application filed February 14, 1907. Serial No. 857,241.

Toall whom it may concern:

Be it known that I, HENRY I. LEA, a citizen of the United States, and a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have made a new and useful Invention in Gas-ProducerRegulilting-Valves, of which the following is a specification;

This invention relates to automatic means for admitting to a as producer such quantities of water as Wlll best meet the requirements of the producer fuel bed under the various operating conditions cncountcrml.

In the operation of gas producers it is found that the eilicicncy ot' the gas making apparatus is increased when a certain amount of Water vapor is admitted with the air forming the blast entering the fuel bed. It is also found that instead of water vapor or steam, the products of combustion or Ct) alone, may beadm'itted With the air and bring about a similar increase in eliiciency. It is also found that a given 't'ucl bed will make gas of variable quality it the ratio of the water vapor to the air. or of the products of combustion (or 01 (l(). alone) to the air forming the blast, is varied. The fixed nature of the valve settings and the igniters on gas engines render it. importantthat gas ol"uui'lorm quality be produced and it is to this end that my invention is directed.

I wish it to be understood that I do not mean to restrict the application of this device to suction producers as such as this device, Without any modification of principles may be used in a wide range of gas making apparatus for the control of either liquids or gases in accord with the demands made upon the fuel bed or with changes in pressure existing in a gas main or reservoir to Which proper connection may be made.

In the drawing accompanying this application and.forming a part thereof, the figure is a sectional elevation of a valve. embodying my invention.

This embodiment of my invention is adapted to be utilized in connection with .steam or vapor generators operating in connection with a suction producer and consists of a valve which is adapted to dejustablc relative to the lever.

liver the water under a low head to the vapor, generating chambers of the boiler. The valve is provided with a casing 3 which incloscs a chamber 4, to which a supply oi water is admitted through a pipe 5 and from which the overflow utor is dis charged through a port (3. The chamber 4 is provided with an automatically actuated valve 7 which controls the flow of water from the chamber through a port 8. The port 8 is located at the bottom of the chamber 4 and communicates through suitable piping with the water inlet ol the boiler or vaporizer in conjunction with which the valve operates. The valve 7 is provided with a stem 9 which extends upwardly through the chamber and is connected to one end of a lever 11 by means of a screw connection 12, which renders the valve ad- .lbc lever 11 is pivoted at 13 on a bracket let, which is suitably mounted on the cover portion of thc casing. The lever is auton'mtically actuatcd by means oi a float l? which is adapted to be moved to dill'crcnt positions in accordance with the varying pressures cncountered in the mains between the gas generator and the engine or other exhaust ing appliance. The tloal 1.3 is localcll in a chamber lo and is connected by a stem IT to one end of the lever 11-. The stem 1? extends through the float and into a tubular guide 18 which is secured to the bottom of the chamber ltS. The chamber .16 communicates through a port 19 with a chamber 20, which is located within the valve casing 3 and is separated from the chamber '16 by a partition 21. The chamher so is provided with a port 2:? which communicates through suitable piping with the gas delivery mains located bctwccn the gas generator and the engine or other exhausting appliance and which transmits to the chamber 20 the gas pressure. encoun lei-pd within the mains. Tho chambers to and .20 are partially filled with water or other suitable liquid in which the float in rests. The chamber 2t above the liquid is air tight, a suitable packing QZE bcing employed between the cover portion of the cusing and the walls oi the chamber tor the purpose of rendering it so. The chamber 16 is exposed through any suitable opening, for instance, the opening around the stem 17, to atn'iospheric pressure and consequently variations in gas pressure within the chamber 20 will cause the water levels n each of the ,two chambers tofluctuate and to. rise and fall amounts which correspond to the encountered gas pressure;

A threaded extension is formed'on one end of the lever 1]. and is provided with a counter-balancing weight 26, which is adapted to be moved to ditt'erent positions along the extension for the purpose of accurately balancing the operating parts of the automatically-actuated valve.

The operation of the valve is as follows: The valve 7 is adjusted by means of the stem 9 so that it will just close the port 8 when the float l5 occupies some predetermined positlon'whlch corresponds to some definite gas pressure. Variations in gas andto fall in the chamber 16. The float 15,

falling with the liquid in therhamber 16, will open the valve an amount correspond ing to the decrease in pressure and will admit a corresponding amount'of water to the steam generator or vaporizer. As the pressure in the gas mains again increases, due to the increased amount of gas generated by the producer, or the decreased amount of gas demanded by the engine or other exhausting appliance, the pressure in the chamber 20 will increase and will cause the Water level in the chamber 20 to .fall while it rises in the chamber 16. The float 15 rising with the water level will operate to close the valve an amount corresponding to the increased pressure, and will, therefore, restrictor wholly shut oil the flow of water through the port 8., Since the port 8 is al ways subjected to a constant pressure head, accurate regulation may be obtained by one adjustment of the valve relative to the lever 11. 1

WVhile the construction here shown is particularly applicable to the control of water for the supply of a steam generator or vaporizer of a suction gas producer, it is evident that by merely altering the proportions of this device, the valve 7 may be made 7 to control the quantity of CO, or the ordinary mixed products of combustion .WlliCll assess it might be desirable to admit instead of steam or water vapor with the air entering the fuel bed. It is not, however, intended to restrict this appliance to the'suction producer practice alone, as it is obviously capable of controlling the flow of any gas or any liquid for any purpose whatever inac cord with the changes in pressure transmitted to chamber 20 from any source Whatever.

In accordance with the provisions of the valve controlling the delivery therethrough, a

pressure chamber, a float chamber communicating therewith, a float located within said float chamber and responsive to variations of pressure within said pressure chamber, a lever between said float and said chamber for actuating said valve and a counterbalancing weight, carried by said lever, for

controlling the operation of said valve.

- 2. A device for controlling the volume of a gas or liquid passing a given orifice in accordance with variations in fluid comprising a delivery orifice, a ,va ve controlling the deliverytherethrough, a pressure chamber subjected'to variations of fluid pressure, a float chamber communicating therewith, a float located within said chamres'sure,

her and responsive to vvariations of pressure in said pressure chamber, .a lever between sa1d float and said valve tor actuating said valve and means, carried by said lever, for controlling the operation of "said float and for varying the ad ustment of said valve. p 3. A device of the character described com risin a li uid chamber an .oriflce prov vided in said chamber, a valve controlling the delivery through said orifice and means for maintaining a constant head of liquid over said orifice, in combination with a pressure chamber subjected to varying degrees of pressure, a float chamber communicating therewith, a float [located within said float chamber and responsive to variations of pressure in said pressure chamber and a lever, connected to said float, for operating said valve. I

4. In adevice of the class described, a pressure chamber, a float chamber communicating therewith, a liquid chamber independent of the pressure and float chambers and hav- I ing inlet and outlet openings, a valve for subscribed my nznnc this 30th day of J=mthe outlet opening of the liquid chamber, a um'y, 1:907.

float in the float chamber and connecting a U means between the float and valve, smd float HENRY LL x 5 b'emg responslve to val-muons in the pres Wit sure chamber to seat or unseat sald valve. CHARMS W M G In testimony whereof, I' have hereunto E. M. MGCALIJBTERJ

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