US1780529A - Steam or vapor generator - Google Patents

Description

Nov. 4, 1930- L. s. LANTERMAN Q 8 STEAM OR VAPOR GENERATOR Filed NOV. 14, 1927 FL uke I.

Witness: Inventor:

, Y oYn LAINTERMAN, on LA-cAn DAQ eamosms'rnsivifon vnron ennnnazron i Application fiI edNQVember'M 192%. "sea; No. 233,155; a f' i I The invention relatesto an evaporating 'apj *paratusforboilen andparticularlyto an ev'aplorating system comprising heat'tra nsfer Coils of the circulating type; in connection, with I constant level liquid reserve chambers and a:

, vapor orgas accumulation space inthe upper chamber 'Arn object of th'e inventionis to provide means ofrapidly' generating and collecting'steam or other vapors ,under 'pressure.

7' Another object. is toprovide;forexpansion J and I contraction of the ,parts, so that ;n'o"idistortion and consequent leaks will occur infthe ra or j The invention possesses otheradvantages,

someof Which, with those referred to above will' be described-in d c iption Inthe drawings:

Figure 1 is an elevation of a vapor genera- 'tor madeyin accordance with my invention, with the casing sectioned so as to show the construction of the vaporgenerator. Figure (2 is a view of the circulation system, Figure 3 is a View of'a circulation systeinwith the circulating coils beginning and ending in the horizontal drums insteadof in the upright stand-pipes as shown in Figure 2. v

Referring to: the drawings by reference characters 7 and 8 are horizontal tubular metal drums, 9 and 10 are upright tubular metal stand-pipes suitably secured to-and in communication Withthe drums 7 and-8 so as to form a continuous rectangular passage-way s or chamber. The stand-pipes 9 and ,10 and detail in the following the drums-7 and 8 are preferably secured together by autogenous Welding as shown in the drawings but may be fabricated in any suitable manner. The coils 6, 6 are-metal tubes preferably helically coiled with a coarse pitch so as to-cause the liquid circulating "through themtotravel at a high rate of speed. Said coils 6, 6 may start in the lower end of one of the stand-'pipessuch as 1.0and end in the other stand-pipe. The interior of these a coiled tubes 6; 6 is in communication at both ends with'the interior of the stand-pipes which are suitably secured into them, preferably by-autogenous welding. 5 is aftube for conducting escaping vapors. 15 is armu'di and rial The liquid supply 'pipe 3 is spirally or may be oftheeirpan'ding' tubetype; said regul'ato'ris. not claimed as'new; one purpose d i b n fi l 161's a tube fbfr replenishing the uppl ofliquiidi a In Figure 1, 1 s 'ar'casingenclosingtheenliquid vaporizing system, said casing be- 1 mg {composed .of 'any; suitable refractory and insulating materialsuch as moulded asbestos board or-infusorial earth, or magnesium carbonate. 2iis' a val-VB .Oflthe liquid supply pipe 3; a shut-'offvalve or throttlevalve on the l elically coiled vapor and super-heating pipe 5; '6 ,1( i'-are heli c ially.ooilsd liquid ciri cula'tingftubesf referred to above "and shown in Figures 2and 3 and ,8 arethe horizontal drums connected by the stand-pipes 9fand 10,

all deseribedabove and shown in Figures'2 and 3; 11 is an exhaust-pipe placed i ifthecenter-ofthe coils of'tubing 6', 6 andf5 aitalso 1 being composedof. moulded refractory-mate'- coiledginside the exhaust pipe 11, andfis con} nected to and ingcommunication withjthegcir-j culating systemthrough' the liquid level -regu-,

lato'r 14. 117 is. anextension of the exhaustpipe 11'." 12i's the burner casting andQ13-is the fuel land air mixing valve to supply the burner 1 2with asuit'able fuel and air mixture.

As shownin' Figure .1 the horizontal drum or tube 7, is below the burner'an'd the arena lating "mud; sediment and scale a chance" to maintained near thecenter ofthe drum 81by any. suitable liquid .level regulating device suchasthe float and valve type 14-, as shown,

is that thedrum 8 provides a-separating sur face'to. allow the gases or steam to separate from liquid; also it provides a storage space forfithe "steam, j vapor or gases. The

standapipes-Qand 1 0 s'erveas connecting pa's sages between the two horiz ontal 'drum's 7' and 8, also serve as supports for the circulatislthereforerelativelycooler than the rest of the circulating system, this gives theaccumm 8o collect in the" drum and still not be, burned i ing coils 6; 6 I when the circulating system is formedlas shown Figure 2. ,The rectanr gular passage-way formed by the two horizontal drums 7 and 8 and the vertical stand-pipes 9 and 10 has a continuous slow circulation maintained in it by the rising column of steam and hot water in one of the stand-pipes, and

thereby carries all scale to the lower drum where it settles and can be blown out. The plurality of circulating coils 6, 6 form a large surface for'the absorption of heat and by their small cross-sectional area and their inclination cause the liquid and gases in them to circulate at high speeds, thereby absorbing a greater quantity of heat. tubes6, 6 being directly exposed to the fire or hot gases of combustion, must-expand and being coiled are free to expand without injury to their joints. The wetssteam or gases pass from the drum 8 through the super-heating tubing 5 which presents a still greater heat absorbing surface to the gases of combustion thereby extracting more heat also super-heating the steam or other gases; this tubing is Having thus described my also coiled and free to expand. The cold liquid from the source of supply passes through the economiz'er tubing 3 which is coiled inside of the exhaust stack 11 and is thus heated by the otherwise waste heat of the exhausted gases of combustion. This liquid is therefore preheated before being fed as required'to'the circulating and steam generating system composed of the horizontal drums 7: and 8 with their vertical stand-pipes '9 and 10 and the circulating coils 6, 6. The burner 12 may 'beof any suitable type and consume any suitablefuel, said burner is not claimed asnew. I r

invention, what I claim is new and desire to secure by Let ters Patent of the United States is:

'1. In a tubular vapor generator, an upper steam and water drum and a lower mud drum spaced. from said steam drum, a pair of spaced pipes connecting said steam and water drum'and said mud drum, a coil of hollow pipe arranged acent said drums, said coil having the upper end'thereof communicating with one end portion of one of said pipes and having the otherend thereof communicating with the lower end portion of the other p pe,

The circulating tem comprising two horizontal drums spaced apart vertically, means to afford communication between said drums, said means including spaced conductors, and a plurality of tubes coiled with a coarse pitch, said coils ascending vertically with their lower endsin communication with and each engaging the lower endof one of the conductors and with their upper ends communicating with and env gaging the upper end'of the other conductor,

means for regulating the fluid level in the circulating system, a super-heater coil communicating with the top of the upper drum and descending vertically downward within the said coils, a ,fuel burner under said coils and the super-heater coil, an exhaust stack,

said exhaust stack being surrounded by Said super-heater coil and the upper end of said exhaust stack being spaced from the ceiling of the casing and its lower end extending through the bottom of said casing, and a c011 of tubing within said exhaust stack with the upper end of the coil in communication with the fluid level regulator and its lower end'connected' with a suitable source of fluid supply. I 'LLO YD S. LANTERMAN.

a steam discharge line extending from the upper portion of the steam and water drum, said steam discharge line passing throughsaid c il.- I r 2. In a tubular vapor generator, the combination of a. casing enclosing a circulatlon system comprising two horizontal drums spaced. apart vertically, means to alford communication' between said drums, said means including spaced conductors, and a plurality of tubes coiled with a, coarse pitch, saidcoils ascending vertically with their lower ends in communicationwith the lower end of one of the conductors and with their upper ends in communication with the upper end of the oths er conductor, a super-heatercoil communicat-

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