US1399281A - Feed-water regulator - Google Patents

Description

V. V. VEENSCHOTEN.y

FEED WATER REGULATOR. A'Pmcmou man Dsc. 1s. 191s.

Patented Dee. .6, 1921.

Aconne-:tel therewith Which embi'iflies VINCENT V. VEENSCHOTEN, OF EBE, PENNSYLVANIA.

FEED- FILTER REGULATOR.

Application filed December 16, 1918.

may concern.'

that L Vincente en ot the llni euulators. et unich the i" elates to leeucularl to reerl nerate steam; if upon the elet'l n et the er, and to this valve. .fd-uch u ajeni and described in the Patust i vi Water t the generator ot the regulator.

@t tie accompanying drawings Figure l is an elevation; more or less diagrammatic, oit a boiler, and a boiler 'leed-Water 1'alor tures oi my invention. Fig'. 2 is a centr` sectional *View or" the regulator and the 'teef Water valve; and Fig. 3 is a modified form ot' the regulator.

The regulator 19 comprises a which is connected; by means or" pipes 28 and Q9. above and belouT the Water-level in the boiler BO. The tube 2T therefore has more or less steam in its upper end and Water in its lower end. depending upon the elevation ot the Water-(level in the boiler. lnclosing this tube Q7 is tube 5l partly lilled with Water 32; and the tube the tank Se and the tube 35 connects the tube with the diaphragm controller 3G.

In operation. as the Water in the boiler sinks steam will be generated in the tube 31 ot the regulator. due to the increasing amount of steam in the tube 27; and the pressure of the steam generated Will depend much upon the elevation ot' the Water inthe tube 2T. Thus the pressure ot the steam generated, and hence the fluid 3V 1essure in the diaphragm chamber 3S; Will depend more or less on the elevation ot the Water in the boiler; and this pressure in turn, by means et' the diaphragm and the members connecting it with the plunger 3'?. Will determine the position of the plunger; and heure will determine the amount ot Llow et Water to the boiler through the Aleed-Water valve 39.

Specification of Letters Patent.

tube 27,'

Patented Dec. 6, 1921.

Serial No. 266,878.

of Water in le regulator tube 31 continually decreases; and has to be replaced peri'- odically; so that the Water-level in thetube may vary greatly, andhence is often a very material distance belou7 the Water-level in the tube 2, Whe; the la ter level is high7 although in practice it should be abone the t These irregularities materially ln use it .ias been found that the amount latter level. atleet the steam pressure generated in the tube 31 under similar conditions; because, While; with high level in the 'tube 8l, there might be ample steam pressure generated therein; yet with low' Water level in the tube 3l the steam pressure therein would increase but `very slightly as the Water level in the boiler sank; and might not, in some cases, be sutlicient to vnove the plunger before injury to the boiler resulted. This tendency is much increased, ordinarily, by connecting the tube 33 to the lower end of the generator; as shown in the said Patent #1193125. l/lvhen thus arranger as the Water-level in the boiler sinks the Water in the tube 31 is forced down into the diaphragm chamber, and hence the Water level in the tube sinks materially louer; and this has a tendency to neutralize the eltect on the steam pressure generated ot the decreased level oit the Water in the tube 27, ln fact the only increased pressure eiect; it' any; is due to a slight heating oi the steam; as no additional steam otherwise can be generated when the waterlevel in the tube 2'? is above that in the tube 3l.

To maintain more nearly uniform the ele- Vatienot the Water in the tube 31 l have connected the pipe 33 to the tube 31 at substantia ly the desired Water-level elevation in the tube; and have also connected the tube 33 with the reservoir 84. This reservoir has a Very material horizontal cross section compared with the cross section of the generator tube 31, and; hence, by the insertion ot the reservoir in the manner shown, the Water-level in the tube 3l will be `maintained at substantially the same elevation as the Water-level in the reservoir, because, as the Water in tube 31 passes otl' by leakage or steam or otherwise, Water Will flow from the reservoir into the tube; and in addition it is impossible tor the Water in the tube 3l to be forced below the entrance to the tube ot the pipe 83. As a consequence the Water-level in this tube, whether or not the controller is be- 4ing operated, remains at all times substantially uniform. y

In order to supply Water to the reservoir 34 any suitable means may be provided. I prefer for this. purpose a pipe 40 connected `with any suitable source of water supply under pressure, passing downwardly from the reservoir to a point where it can be conveniently reached by the operator in char e. I provide, also, a similar pipe 41 leadmg to the same point, and which is adapted to release the pressure in the reservoir so as to allow the water to flow into the reservoir when both valves 42 and 43 are opened. The pipe 4l opens into a sink, or othersuitable receptacle; and the water will flow therefrom as soon as the reservoir is sufficiently filled; and this will indicate to the operator the fact that sufficient water has been supplied.

Fig. 3 shows a modified form of a reservoir and its connection to the generator. In this instance the reservoir 44 is elevated above the generator, and the pipe 45 passes from the reservoir into the tube 46, and

i downwardly to substantially the position of the desired water-level in the tube. This reservoir may be supplied with water by 'means of the Water pipe 47 and a four way valve 48 operated by means of a chain 49 which passes downwardlyT so as to be conveniently reached by the operator. The valve 48 for clearness is shown open, but in normal operation the valve would be closed. Vith this arrangement thewater level in the tube 46 will be maintained somewhat uniform, but will depend more or less upon the pressure of the steam therein. Vhen the steam is suiicient to operate the diaphragm the water level will be forced downwardly by the steam until it is slightly below the end of the tube 45, but will, under no circumstances pass below this point. By this arran ement a minimum water-level is provided or; and the maximum water level will occur when the water level in the boiler is at a maximum and hence the steam effect in the tube 50 is at a minimum. In general the level of the water in the tube 46 will follow more or less the movement of the water level in the boiler, and will thus adapt itself to the needs.

I claim as my invention:

l. The combination of a boiler and a feedwater regulator, said regulator comprising a vessel adapted to contain water and mounted at an angle to the horizontal adjacent said boiler and at substantially the same elevation as the mean water-level in said boiler, a tube passing through said vessel and connected with said boiler above and below the mean water-level therein, a

feed-water valve operatively connected with said boiler, a governor operatively connected with said valve and adapted to be operated' by steam pressure, a reservoir mounted at substantially the same elevation as the mean water level in said boiler, pipe operatively connecting the lower portion of said reservoir with said governor, a pipe connecting said reservoir with said vessel, means for admitting water into said reservoir, and means for relievingthe pressure in the upper portion of said reservoir.

2. The combination of a boiler and a feed-water regulator, said regulator comprising a vessel adapted to contain water and mounted at an angle to the horizontal adjacent said boiler and `at substantially the same elevation as the mean water-level in said boiler, a tube passing through said vessel and connected with said boiler above and below the mean water-level therein, a feed water valve operatively connected with said boiler, a governor operatively connected with said valve and adapted to be operated by steam pressure, a reservoir mounted at substantially the same elevation as the mean water level in said boiler, a pipe operatively connecting the lower portion of said reservoir with said governor, and a pipe connecting said reservoir with said vessel.

In testimony whereof, I hereunto set my hand.

VINCENT V. VEENSCHOTEN.

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