US1266619A - Feed-water regulator. - Google Patents

Description

G. F. PATTERSON.

FEED WATER REGULATOR.

APPLICATION FILED MAY 4, 1917.

Patented May 21, 1918.

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gnomafoz 0 5W in feed water regulators and has for its enonen r. PATTERSON, or BALgIMoRE, MAnYtAnn.

FEED-WATER REGULATOR.

To all whom it may concern:

Beit known that I, Gnouen F. PATTERSON,

a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in F eed-Water Regulators, of which the following is a specification.

.This invention relates to improvements object to provide an improved construction of device for regulating-the feed of water to boilers that will operate promptly to feed and then cut off the water supply when the water level in the boilerhas first fallen and then become replenished, so that thewater level in theboiler may, as near as possible, be maintained at a predetermined level.

Another object of the invention is to provide ing pp y erate a a motor'to operate a pump or water device; a pressure generator to genpressure for the pump or supply device and a controller to govern the operation of the pressure generator and itself operatedby the pressure of the generator which it controls.

The accompanying drawing illustrates the invention wherein the single view shows the improved device, partly in side elevation and partly in sectional elevation.

The present invention is an improvement over the device shown and described in my prior Patent Number 1,002,080, granted August 29th, 1911,particularly in that 'I now employ a pressure-operated controller which governs the operation of the pressure generator in such away asto render the operation quicker and even more delicate than heretofore. I

Referring to the drawing by numerals, 1, designates a water column; 2, a steam pipe that connects the boiler, not shown, with the upper part of the water column and 3, a pipe which connects the water column with on a line 4, with the'level of the water in the boiler. A glass tube 5, is provided on the water column to show the actual water level in the boiler and water column.

A pressure generator casing 6, is provided which has a lower chamber 7, and an upper chamber 8, that are separated by means of a partition 9.

A steam pipe 10, extends'from the water column at a point above the water line 4,

Specification of Letters Patent.

of the pressure generator.

an improved water regulator combin-.

the boiler below the water line so that the water column will have a water level Patented May 21, 1918.

Applicationfiled May4,1917. Serial No. 166,285.

and enters one end of'the lowerchamber 7 At this steam entrance end, the lower'chamber 7, of the pressure generator is provided with a port having a beveled valve seat 11, and a valve 12, having theform of a stem extends horizontally-in the lower' chamber .7, and has a beveled end 13, to fit the seat 11., This valve stem 12, extends from one end of the chamber 7, and through the casing 6, so that it may be actuated by means thatwill presently be explained.

' A pipe 14,'extends froin the Water column at a point below the water line and has a branch 15 that also'enters' the lower chamber 7, of the pressure generator. I 16, is provided to connect the pipes 10 and 14 and thereby enable a circulation to and from the water column and to also afford a circulation from the chamber 7 by means of said pipes 14, 15 and 16'.

Abranch' pipe The generator casing 6, has a bracket 17,

extendlng horizontally from'fone end and said bracket is provided with stationary cross-bars 18 and 19 respectively. A head 20, having a threadedplug 2 1, screws into the bar 18, and the valve stem 12, extends freely therethrough. The outer end of the valve stem carries a head 22, which seats against the cross-bar 19, of the bracket and a spring 23, encircles the stem and is compressed between the heads 20, and22, to exert a constant pressure on the head '22, and thereby tend to keep the stem pressed from the valve seat 11.

The outer end of the bracket 17, carries a'chambered casing '24, with a diaphragm 25, at one side thereof and a short stem 26, is interposed between one side of this diaphragm and the head 22, on the outer end of the stem, so that movement of the diaphragm, in a direction toward the head 22, will impart a horizontal movement to the stem and thereby move its inner end against outwardly with its inner end drawn away the valve seat 11, to close the port from pipe 10, to the lower chamber 7 of the pres- 1 sure generator.

enters said upper chamber and has abranch 30, that extends to and enters the casing 24,

at the outer side of 31, extends from the upperside of receptadiaphragm 25. A pipe cle 28, and communicates with pipe 29, so

that a circulation may take place from upper chamber8, by pipes 27, 29 and 31, with the receptacle 28. The receptacle 28, pipes 27 and 29, and upper chamber 8, are all pro- 1 "vided with water, and a gage pipe 32, and

gage 33, are provided to indicate the pressure that is generated in said receptacle and chamber.

In carrying out my invention I also make use of a motor or powerunechanism whose 7 function is to set in motion means that will 'supply'water to the boiler. This device may 5 be coupled with a valve in a steam pipe to open the latter and set in motion a pump, or

the valve may be located in a water supply pipe so' that when actuated, it will allow water to .pass to the boiler.

The form of motor or power device may vary, but. in the present instance, I employ a bracket, 34, having a recess 35, at one side so that' a diaphragm 36, maybe seated against said side and over said recess. A

' disk 37, is ,providedat the outer. side of the head 43," and, sai

. bracket 34, so

diaphragm, and a stem 38, has one end seated against said and extends laterally therefrom. Acre 'T-fbar 39, engages the outer end of the seem so that when the diaphra-gm is bulged outwardly by pressure admitted to the recess 35,.the stem and crossbar both will belgiven a limited outward r movement. Theiopposite ends of the cross-/ bar are provided with link bars 40, which latter have bearing in guide brackets 41, at the side of the bracket 34. The .two link bars connect with th'e opposite ends of a cross-bar 42, which latter asses through a slotted valve-stem which latter casing 45, andengages a valve 46, therein. Pipes 47, and 48, serve to provide a supply of steam for a pump or to convey water directly to the boiler as desired and the valve 46, simply serves to control the-passage of either the steam or the water through, said plpes.

The head 43, has one side seated against one endof a stem 49, and another-and movable head 50, receives the other end of said stem. A coiled spring 51, has one end seated against the movable head 50, and its other the pipe 53, will simply of SilfilClBIlh and release head connects wlth a enters a valve 38, and the diaphragm 36, as'

length to make the connection above described.

In operation,.and presuming the b0iler.to have the desired water level, the valve stem 12, will be withdrawn from the beveled seat 11, and water from the boiler will therefore enter the lower chamber 7, of the pres- W'hen the water in the however, steam will enter said will heat. the partition 9, and the water in sure generator. boiler falls, lower chamber 7 by pipe 10, and this steam the upper chamber8, and thereby produce a pressure in the upper chamber 8, and the pipes connected'therewith. As pipe 53, conveys this generated pressure to the recess 35,0f the motor or power device such pressure will act on diaphragm 36, and spring the same outwardly, thereby movingt stem 38;

cross-bar 39; links'40; valve stem 44; and valve 46, in a direction to open'ficdmmunication between pipes 47 and 48, 'so that steam may pass through to operate a water pump or water "may pass to the boiler. The pressure in generator chamber-8, will continue to rise, say until fifteen pounds is reached,

whereupon'that pressure which is conveyed.

by branch pipe 30, to one side of diaphragm 25, will bulgethe latter and push alve stem 12, to the seat" 11 thereby closing ofl? the steam-supply to the-lower chamber 7.

The supply of water to the boiler will continue until the water level again reaches line j 4, whereupon the water will back up in pipe 15, into the lower chamber '7, and quickly lower thetemperature:in said chamber and also cause the pressure in chamber 8, to drop stem 12, will again be opened, and the reduction in temperature is effected so fast that pressure in pipe 53, will drop sufiiciently to allow diaphragm 36, to assume its normal position and thereby efl'ect a' closing of supply valve 46. a

It is to be understood that the motor diaphragm 36, operates on a lower pressure than the pressure generator diaphragn 25, consequently the former will operate to feed water before the latter operates, but the latter serves a very useful purpose in that it promptly cuts ofl the steam when the pres sure in the upper chamber 8, has reacheda point where cooling may begin, it being de termined in practice that by the time the the diaphragm 25, so that valve pressure is reduced suiiiciently to enable the diaphragm 36, to return,.suificient water will have been chamber;

, connections between the having a pressure chamber and another chamber in heat transferring relation with the pressure chamber and said other chamber having connections from both the water and steam spaces of a boiler, of a valve to control chamber; means controlled by the pressure in the pressure chamber for operating said valve; valve means for sage of feed Water to the boiler and means operated by pressure generated in said pressure chamber for actuating said valve means.

2. In a feed water regulator for boilers the combination with a pressure generator having a chamber, of means for heating said chamber; a valve for controlling said heating means; means controlled by the pressure in the chamber for operating the valve; means for controlling the passage of feed water to the boiler; pressure operated means for controlling said latter means and connections between the chamber of the pressure generator and said pressure operated means whereby the latter may be operated."

In a feed water regulator for boilers the combination with a generator having a pressure chamber, of means for heating said a valve for controlling said heat- 1ng means; a casing having a chamber with a diaphragm therein said diaphragm having connection With said valve; connections between the pressure chamber and the casing chamber; means for controlling the passage of water to the boiler; pressure operated means for controlling said'latter means and pressure chamber of the generator and the said pressure operated means.

4. In a water feed regulator for boilers the steam connection to said latter controlling the pasthe combination with a pressure chamber, of means for heating said chamber; -a valve for controlling said heating means; a casing having a chamber with a diaphragm therein said diaphragm having connection with said valve; connections between the pressure chamber and the casing chamber; means for controlling the passage of water to the boiler; a casing having a diaphragm therein said having connection with the means that controls the said Water passage and connections' between the pressure chamber of the generator'andthe-said latter diaphragm.

-5. Ina water feed regulator for boilers the combination with a water column, of a pressure generator having two chambers connections between the upper and ,lower portions of thewater column and one of the pressure able in said latter chamber to cut oil communication through the connection from the upper portion of the Water column; a casing having a chamber with a diaphragm therein said diaphragm being means for conveying the pressure in the other chamber of the generator to one side of the diaphragm in the casing chamber; means for controlling the passage of Water to-the boiler and connection between said latter means and the said other chamber of the pressure generator.

In testimony whereof I aiiix in presence of two witnesses.

Witnesses:

Gno. E. ELLERs, FRANK R. SMALL.

generator having a 40 latter diaphragm generator chambers; a valve mov-v connected to the valve my signature

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