US696296A - Heater and separator for steam-generating plants. - Google Patents

Description

2. 0 5, 2 r. a M d e t n e t a P L L E G N ,A J. 6. 9 2., 6 9 6 m `N HEATER AND SEPARATDR FOR STEAM GENERATING PLANTS.

(Application tiled July 27, 1901.)

2 Sheets-Sheet I.

(No Model.)

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THE Norms PETERS Co, PHorcxLwHo.. wAsHmcmN. u, c.

`Patented Mar. 25, |902. y J. ANGELL. A y l `HEATER AND SEPARATUH FUR STEAM GENERATING PLANTS.

(Application led July 27,'1901.)

2 sheets-sheet 2.

(ll Model.)

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THE Nunms ruins co. M0104 mw., wAsmncn'oN. n. c.

UNrTED STATES.

PATENT OFFICE.

JOHN ANGELI.,V ou sr. LOUIS, MISSOURI.

HEATER AND SEPARATOR FOR'STEANI-GENERATING PLANTS.

SPECIFICATION foririing` part of vIlettenr Patent N 0. 696,296, dated March 25, 1902.

Original application led- April 27, 1901, Serial No. 57,685. Divided and this application filed July Z7. 1901. Serial No. 69,882. (No model.)

To all whom t mrtg/concern:

Be it known that I, JOHN ANGELL, a citizen of the United States, and a resident of the Steam-Generating Plants; and I do hereby declare the following to be afull, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specication.

The present invention relates to that type 'of apparatus employed in steam-engineering plants in which the feed-Water is caused to trickle down a series of shelves or trays ar'- ranged within a closed casing and in its downv to 'that particular type of such apparatus 'in` which means is provided to separate thorentrainment-grease and other impuritiesfrom the incoming exhaust-steam and the scum and lighter impurities from the heated feedwater.

The objects of the presentirnprovement are to provide a simple and efficient apparatus j in Which the grease and other impurities carf ried by the exhaust-steam into the apparatus by entrainment are collected and separately removed in an automatic manner and with which the scum and otherlight irnpuritiesof the heated feed-water are in like manner skimmed off and removed, all as will hereinafter more fully appear, and be more particularly pointed out in the claims. I'attai'n such objects by the construction and arrangement of parts illustrated in the accompanying drawings, in which- Figure 1 is a longitudinal vertical section atline oc oc, Fig; 2, of a feed-Water heating and purifying apparatus embodying the present improvements; Fig. 2, an end elevation Vof the same With parts `in section at line fr.' to', Fig. 1.

Similar numerals ofreference indicate like parts in both views.

Referring to the drawings, 1 represents a vertically-arranged closed casing or housing of any usual 'and approved construction and which in the present improvement constitu tes 'a heating-chamber forl effecting the desired heating of the feed-Water by the exhauststeam from the engine and a receiving-chamber for the heatedfeed-water,andwhich receiving-chamber is in turn provided with an intermediateiilter-bed v' through which the feedwater passes to have its suspended impurities removed before being fed to the steamgenerator. The casing 1 is also provided with the usual steam-inlet neck or passage 2,steam outlet neck or passage 3, feed-Water inlet pipe or passage 4, and feed-water outlet pipe orv passage 5, extending either directly to the steam-generator orto the feed-pu mp by which the generator is supplied.

6 is the usual filter-bed, supported on a perforated grid 7, arranged a distance above the bottom of the casing or tank 1, so as to leave a' clear-Water chamber 8, with which the feed.- water outlet-pipe 5 is connected.

9 is an upturned and laterally-perforated extension of the feed-Water inlet-pipe 4, arranged centrally in the steam outlet or exhaust neck 3 of the heater-casing and adapted to discharge thefeed-Water in jets and in a direction transverse of the outgoing steam and against the inner walls of such neck, so that more or less of the feed-Water will trickle down said inner Walls of the outlet-neck and, from thence down the inner surface of the heater-casing to aord an increased and effective heating and condensing surface in the operation of the present apparatus.

10 is an elongated water-receiving trough or hopper supported centrally beneath the outlet-neck 3 by end lugs 1l on the main casing and adapted to receive the feed-water discharged from the inlet-pipe 4 as such water rains down from the outlet-neck 3. Such trough is provided with a central raised web or partition 12 and a series of perforations 13 at each side of such web, the construction being adapted to divide and distribute the Water in an even manner to the series of surface-heating plates or shelves arranged beneath said trough and occupying the upper portion of the casing l.

14 and 15 are alternating series of surfaceheating shelves or plates, the one series, 14, slanting downwardly from the center, and tho other series, l5, slanting downwardly IOO from the sides, as shown in Fig. 1. Each shelf or plate will preferably consist of two straight halves meeting at the center, as shown, and the irstmentioned series, 14, will be provided with passages 1G at their outward edges for the passage downward at such points of the feed-water onto the next adjacent shelf below, while the last -mentioned series, 15, are provided with passages 17 at their center for the passage downward at such points of the feed-water onto the next adjacent shelf below, so that such feed-water will have a circuitous or serpentine passage down along the series of shelves to have an extended and effective exposure to the exhaust-steam to attain avery eificient heating of the passing feed-water. From the lowermost shelf of the series the heated feedwater drips down into the receiving-chamber therefor in the lower part of the main casing, as illustrated in Fig. 1. The series of shelves are preferably ribbed in the direction of their slant, so as to maintain an extended separation of the feed-water flowing over the same.

1S represents skeleton end frames supporting the series of shelves 14 and 15 at their outer ends, and which skeleton frames are in turn supported on lugs attached to the inside of the main casing, as shown in Fig. 2. The skeleton formation of the frames 1S is intended to permit of the free and effective entrance or access of the exhaust-steam to the series of shelves and to the thin stratum of feed-water owing upon the same.

1S) represents intermediate supporting-bars for the support of the central or middle portion of the series of shelves 14, such supporting-bars resting at one end on lugs 2O on the main casing and at the other end upon transverse bars 21, extending across the doorway 22 of the main casing and resting upon lugs at the side of such doorway, and which doorway is normally closed by a door or cover 23. In the construction shown the series of shelves or plates 15 are supported at their central or middle portion by upwardly-extending lugs or anges 24 of the shelves 14, that form rests for the central edges of the halves of the series of shelves 15 and permit of the free upward passage of the exhaust-steam and a cont-act of the same with the feed-water falling through the central openings 17 of the series of shelves 15.

No claim is herein made for the special construction of feed-water-heating apparatus so far described, as the same forms the subjectmatter of my original application, Serial No. 57,685, filed April 27, 1901, and of which the present application is a division.

25 is a water or grease separator, secured at one side of the main heater-casing at a point above the normal water-level in the main heater-casing and having the usual arrangement of intercepting partitions for intercepting the water, grease, dto., of entrainment carried by the exhaust-steam. Preference is given to the particular construction of separator shown in Fig. 1 of the drawings as best adapted to the present construction and arrangement of parts. No broad claim is, however, made in the present application to such construction of the separator, other than the special formation of the same which adapts it for use with the present improvements. Its general features of construction form the subject-matter of a companion application for Letters Patent, Serial No. 57,162, filed April 24, 1901. In the particular construetion shownA the separator-casing is provided at one side with a fiange 26, by means of which it is bolted to the side of the main heater-easing with its outlet-opening in register with the inlet-passage into such main casing for the exhaust-steam and at the opposite side with an inlet-neck for the attachment of the exhaust-steam pipe or main, as shown in Figs. 1 and 2.

27 is an annular disk secured upon the inside of the main casing, preferably by the same bolts which secure the separator in place, and formed with a cylindrical neck 28, which in turn is provided with an annular marginal flange 29. Such parts have an axial arrangement in the main inlet-orifice to the main heater-casing, as shown, and are adapted to form a Very eiicient barrier to prevent the usual creeping action of the water, grease, 85e., of entrainment in the direction taken by the steam and into the main heater-casing to mix with the feed-water and be returned to the steam-generator.

30 is a reticulated grid arranged in the interior of the separator-casing and in the path of the incoming exhaust-steam and adapted to divide or separate the exhaust-steam and direct the same in its divided condition against the imperforate impact-partition 31, so that the water, grease, die., of entrainlnent will adhere to and be retained by the surface of such partition, while the steam is left free to contin ue its travel into the heater-chamber.

32 is a passage leading downward from the separator 25 and adapted to conduct the water, grease, ttc., of entrainment away from the same.

33 is a receiving-chamber at the lower end of the passage 32, adapted to receive the cntrainment-Water, 85e., and provided with a blow-off pipe or passage 34, provided in turn with an automatic blow-off valve 35, operatively connected with a fioat 3G in said chamber and adapted to automatically open and blow off the contents of such chamber when such contents reach a predetermined level in the chamber by the gradual accumulation of the entrainment-water, &c.

37 is a branch elbow pipe or passage extending into the interior of the main heater-casing, with the open end of its vertical portion on a level with the normal or predetermined water-level in said main casing. Such open end is preferably formed flaring or funnelshaped to more effectively act as a skimmer for securing the surface-water and the scum IOO IIO

and impurities carried lthereby and conduct the same down into the receiving-chamber 32, to be blown off from the same'in an automatic manner along wi th the entrainment-water, dre.

38 is a cone-shaped cap located a distance above the funnel-shaped mouth of the branch passage 37 and adapted to intercept any feedwater from dropping directly into such mouth.

A predetermined water-level is automatically maintained in the main heater-casing by means of a float within a float-chamber 39, having pressure-equalizing steam and water pipe connections 40 and 4l with the heatercasing and operative connections .with the valve 42 in the feed-water inlet-pipe 4, as set forth in detail in my aforesaid original application, Serial No. 57,685.

43 is a closed tank or holder for the purge or coagulant compound used in the purification of the water. The special construction and arrangement of this tank forms the subject-matter of a companion application for Letters Patent, liled of even dateherewith, and consequently no detailed description will be given in the present case.

44 is a valved blow-od pipe connecting the lower end of the main heater-casing with the blow-olf pipe 34 for use in cleaning out the` apparatus.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination in a feed-water heater, of a main heater-casing, a separator for the entrainment-water or the like, comprising a housing provided with a flange at one side for attachment to the heater-casing, a reticulated grid arranged'vertically within said housing transverse to the steam-inlet, a vertical impact-plate arranged back of said grid, a receiving-chamber attached to the side of the heater-casing, a tubular connection between the lower end of the separator-housing and the upper end of said receiving-chamber, a horizontal branch connection extending from such tubular connection to the heater-casing and having a receiving-mouth within the interior of such casing arranged onra level with the normalwater-level in such casin g, a blowoff pipe connected to the lower end of the receiving-chamber, a Valve in said blow-off pipe, a float in said receiving-chamber, and operative connect-ions between said float and said valve, substantially as described.

2. The combination inra feed-water heater, of a main heater-casing, a separator for the entrainment-'water or the like, comprising a housing provided with a flange at one side for attachment to the heater-casing, a retic'ulated grid arranged vertically within saidhousing transverse to the steam-inlet, a vertical imv pact-plate arranged back of said grid, a receiving-cnamber attached tothe side of the heater-casing, a 'tubular connection between the lower end of the separator-housing and the upper end of said receiving-chamber, a horizontal branch connection extending from vconnecting with said horizontal connection and its upper end formed with a flaring mouth arranged on a level with the normal water-l level of the heater-casing, a blow-0E pipe connected to the lower end of the receiving-chamber, a Valve 'in saidblow-off pipe, a oat in said receiving-chamber, and operative connections between said loat and said valve, substantially as described.

3. .The combination-in a feed-*water heater,- of a main heater-casing, a separator for the entrainment-water or the like, comprising a housing provided with a ilange at one side for attachment to the heater-casing, a reticulated grid arranged vertically within said housing transverse to the steam-inlet, a vertical impact-plate arranged back of said grid, a receiving-chamber attached to the side of the heater-casing, a tubular connection between the lower end of the separator-housing and the upper end of said receiving-chamber, a horizontal branch connection extending from such tubular connection to the heater-casing, an angular tubular connection arranged within the heater-casing with its lower end .connecting with said horizontal connection and its upper end formed with a ilaring mouth arranged on a level with the normal water-level of the heater-casing a cone-shaped cap arranged in separated relation above said mouth, a blow-off pipe connected to the lower end of the receiving-chamber, a valve in said blow-od pipe, a float in said receiving-chamberyand operative connections between said iloat and said valve, substantially as described.

4. The combination in a feed-water heater, of al main heater-casing, a separator for the entrainment-water or the like, comprising a housing provided with a flange at one side for attachment tothe'heater-casing, a cylindrical neck arranged axially in the outlet-orifice of the separator-housing and secured in place byan annular disk bolted to the inside of the heater-casing in opposed relation to the attaching-fiange of said separator-housing, a reticulated grid arranged vertically within said housing transverse to the steam-inlet, a

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vertical impact-plate arranged back of said.

grid, a receiving-chamber attached to the side of the heater-casing, a tubular connection between'the lower end of the separator-housing and the upper end of said receiving-chamber, a blow-off pipe connected to the lower end of the receiving-chamber, a valve in said blow-olf pipe, a float in said receiving-chamber, and operative connections between said oat and said valve, substantially as described.

5. The combinationin afeed-w-ater heater,

of a main heater-casing, aseparator for the entrainment-Water or the like, comprising a housing provided with a flange at one side for attachment to the heater-casing, a cylindrical upper end of said receiving-chamber, a blowoff pipe connected to the lower end of the receiving-chamber, avalvein said blow-off pipe, a oat in said receiving-chamber, and operative connections between said float and said valve, substantially as described.

In testimony whereof Witness my hand, this 24th day of July, 1901, at St. Louis, Missouri.

JOHN ANGELL.

In presence of- MoR'roN JOURDAN, STEPHEN C. ROGERS.

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