US902283A - Boiler-feeder. - Google Patents

Description

N. ENGLISH BOILER FEEDER.

APPLIOATIQN FILED MAR. 25, 1908.

Patented Got. 2?, 1 908.

11 uventor U I ED STATES PATENT- orrro;

No'aM-AN' ENGLISH, or Damon, MICHIGAN.

" soILEarEEpER.

Specification of Letters Patent.

Patented Oct. 27,1908;

Appiication'filed March 25, 1908. sr1t11vo. 42s,os2.

To all whom it may concern:

Be it known that I, NORMAN Eneusa a' citizenof the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful IIn provement in Boiler-Feeders, and declare the following to be .a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same,'reference being had to the accompanying drawings, which;

- form apart of this specification.

This invention relates to boiler feeders.

It has for itsobject an improved means for collectin and returning water of condensation to t e boiler automatically.

fThe drawing'is a diagram of the apparatus.

1 indicates the boiler into which the water is fed through pipe 2, and from which the steam emerges throughpipe 3. The steam passing through pipe 3 to its place of use is condensed in the various pi es and coils, as

in'coil 4, and-the condense steam runs by gravity into a well 5, inwhich it gradually accumulates. From the well 5 the water is lifted by the force of the steam in the system, past check valve 6, throughpipe 7 into a stationary tank 8, and accumulates in the stationary tank Suntil it rises above the out-' flow pipe 9, through which the water passes and is delivered into a hanging receptacle 10.

The receptacle 1O hangs on the end of a lever, 11, which controls two valves the one valve 12' is a balance valve in the'pipe 9, and' the other valve 13 is a balance valve in asteam pipe14, that leadsfrom the main steam pipe 3 into the top of the tank8. The receptacle 10 has a water outlet 16, closed by a hand actuated valve 17, which is normally open. 1 The receptacle 10 hangs in a guard vessel 19, into which drops the waterpassing through, the outlet 17, and fromthe guard vessel the water' is conveyed, or may be conveyed, into the well '5, or into any suitable receptacle for the water that has been used to actuate the lever 11. The large outlet of the pipe 41 Whith leads from the radiator into the well 5 is closable by afloat actuated valve 42 thatcloses by the droppling of the float 43 by gravity' when the we is emptied, ,The outlet from the pipe 11 is greater part of it is closed ofi',leavin'g a bypass 43 for water. to enter'the tank5, but closing oil the lar' c aperture,'and preventin the excessivejin ow of steam into the we 1 until the full orifice is opened; the; small 'not entirely closed, but the amount of steain escaping into the well through the downwardly directed opening 1:3 I

condenses. v The operation of the device is as follows The pipes being filled with steam, some part of the steam condenses, and the water of condensation' flows by gravity into the well 5,

whence it islifted by the pressure of steam behind it; as soon as the water in the well has lifted the float valve to open the full OIlfice, the water in the well 5 is driven u into the tank 8, rises in thetank 8 and 1n the.

parallel pipe 81 untilit rises above the end -of the .pipe 9, then some'part of the water passes through the pipe 9 ast the now open valve 12, dro s into and ill 10, into Whic the water runs faster't an it can run out through the dischar e pipe 1 6.

As soon as the receptacle 10 has een filled, it' drops by gravity, closes the valve 12, and

W, open-J ls the wee tacle I onger runs i By this action the air has been driven out 3 from the tank 8, which is filled with steam,

and this steam condenses, producing a par. tial vacuum in the tank; the water imme diately begins to flow into the tank 8 from the well. After the system has become warmed up, so that the condensation therein I is comparatively slow, the small amount of water which. gathers in the well 5 during the time that tl1c'.tank 8 is discharging, rises almost immediately into the tank 8, and inimediately after the water inthe well 5 sinks below the lower end of the pipe 7, steam fol. lows into the tank, and. the force of this steam is sufiicient to equalize pressure on the water now in the tank 8, and the actuating rece tacle 1G ceases-to havean active art in tlie return of-the water to the boiler, t iough it is ,present, and in condition to act wheneverfor any reason the water which gathers in the tank 8' 1s S'Ull'lClBIli) to overflow into the re Oeptaclel 0. This is especially the case if the pressure in the system is very low, as isfre '-'quently the case, so low that the-pressure "is:

the atmosphere,

not suliiciont to overcome and force o fen the check valve in the p1 e 9 -which is he d to itsscat by grav'itylan atmospheric ressure. This boiler feeder Will may be changed at will by hand manipulaact eflicient y when the pressure of the steam tion ofvalves 25, 26 and 27.

in the system. fails as. low as a half pound.

In the original construction of the a paratus, the pipe 9 is so located along t e parallel pipe 81, that it determines the amount of fluid to be collected in said tank before the fluid begins to overflow through the pipe 9 into the receptacle 10. This is done by placing on the bparallel pi e 81 a number 0' couplings, a, c, d, anc e, and connecting the pipe 9 to that one of the couplings which is at the proper height to determine the desired amount of water to be collected before it is emptied into the boiler. The place of this connection depends on the size of the plant with which the apparatus is used. With a large plant more Water isto be collected than with a small plant.

When high pressure steam is employed, an additional apparatus may be emplo ed, that is, when the pressure of steam is so igh that the overflow Water in the receptacle 10 is unable to pass the check valve 18. This additional device consists of a tank 20 into which water from the tank 19 empties, passing as it does so a float check valve 21. The tank 20 is supplied with an outlet pipe 22, in which there isa check valve 23, and with a steam inlet pipe 24, which communicates with the main steam pipe 3, and through which steam is admitted into the tank 20 Whenever the valve 13 is opened. The water will readily drop from the tank 19 into the tank 20, and when in the tank 20 is in position to be equalized between the back pressure from the tank 5 and steam substantially taken directly from the boiler through the pipe 24. The system What I claim is 1. In a boiler feeder, in combination with a steam boiler and a system of steam heating pipes supplied thereby, a well intowhich said pipes drain, a tank located above the boiler and adapted to empty thereinto by gravity, a pipe connecting said well and said tank, an overflow ipe from said tank, a rece tacle into which said overflow drains, a Va ve in said overflow ipe controlled by said receptacle as a weig t, a valve in the steam pipe adapted to control the admission of steam into said tank and itself controlled by said re ceptacle'as a weight, substantially as de. scribed.

. 2. In a boiler feeder, in combination with a steam boiler and a system of heating ipes supplied thereby, a collecting well, aco lecting tank, a pipe through which water may be forced from the well to the tank, a valve therein adapted to prevent a return flow therethrough, an overflow pipe from said tank, a receptacle adapted to catch the overflow therefrom, pipes connecting said tank and said receptacle with the boiler, whereby water may be returned thereinto from either, and valves actuated by said receptacle,

the pressure on the water contained 1n the tank, substantially as described.

In testimony whereof, I sign this specifica whereby steam may be admitted to equalize

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