US1771592A - Boiler - Google Patents

Description

y 9, 1930. L. D. SUMMERS 1,711,592

' BOILER I Filed Aug. 18. 1927 3 Sheets-E5110 1 INVEN TOR.

I A TTORIYEYS.

July 29, 1am.

I... D. SUMMERS BOILER Filed Aug. 18, 1927 3 Sheets-Sheet 2 on E W lll\ll.l."lll WI! I ll em: ILQEE mm vn TM 5 fi i m A TTORNEYS,

y 1930. 1.. D. SUMMERS' 1,771,592

BOILER Filed Aug. 18, 192'? s Sheets-Sheet 3 INVENTOR.

A TTORNEY.

Patented July 29, 1930 fsTATEs F ICE! i LOUIS ID. SUMMERS, or DECATUR, ILLINOISQ'ASSI'GNQBQ BY mnsnn nssienmnnrsl ro j 1 Bornnn a g Application filed August 18,1927, s mina- 213,734.

i veni ent to move in parts andset up and easy to get through basement doors and the like ofthe ...withou't disassembling all parts;

boiler. e n" V A further object of my invention is to. provide in a unit boiler organization a section thereof so positioned and operatively con nected with other parts of the boiler as to economically provide a greaterlarea ofcontact-;with the hot products of combustion and a consequent greater efficiency and economy resulting from the boilers use. e o V A further object of my invention is to pro vide in a hot water boiler having an 7 economizer section, a combustion chamber-adapted to economically and; successfully .burn oil, gas" or coke withremarkable efficiency. 1 attain the objects ofmy'invention in the boiler described in thespe'cifications herewith, recited in the claims and illustratedin the accompanying drawings in which like reference numerals indicate like partsin the several figures. -s i a I Referring to the figures: 7 1 I t Figure 1 isia vertical section from' front to back through the center of my boiler. FigureQis a vertical section 2-2 of Fig, ure? V 1' Figured is a-side elevation of my boiler. Figure {i isa 'frontfview of my boiler. V

Figure 5 is a horizontal section 5-5 of Figure? i Figure 6 is a horizontal section 6 6 of Fig- Figure 7 is a top viewof my boilerr e a Figure 8is ahorizontal section 58-7-8 of Figureg3. e m v 5' Referring to the construction of my boiler and method ofoperatin g the same,

I provide a combustion chamber communlcatively connected by pipes through passages adapted to accommodate the movement of the products of combustion from the COIllbllStlOIl chamber in a manner. that will :accomplish the maximum of heat transfer from thehot gases tothe water -2v before they leave the outlet gas chamber;

In order to accomplish the purpose of my 1, invention, I provlde in cooperative combination a main ,boiler section 4and econon' izer section which sections are detachablyand operativel built together.

It Wasonce thought by engineers" that in order t o get the greatest efiiciency from the products of combustion that a strong draught was needed to causea speedy movement of the products offcomb ustion all the way from the combustion chamber to the outlet flue and in some kinds offuel and in some situations aheatingfuel such a point of yiew may be welltakengf V i 5 t Howevr; as a result of recentexperiments and developments inthe line of domestic ,Where' for instance, soft coal maybe used as heating equipment, it "has been found when usingoil, gas and coke as fuel, that is is possiblestoso organize heatingequipment as to effectively and most 1 economically conserve "the'heat from the fuel and obtaintherefr'om va remarkably great percentage of efiiciency carefully and scientifically providing for the movement of theproducts of combustion at such rates and through such passages as will cause them to give up the greatest possible percentage of theirheat before they leave gas outlet -6-' adapted tobe connected with ahuilding flue. W A order therefore to get the above menjtioned desired results withmy'boiler; I so conjstruct 'my boiler asto surround the combus- :tion' c'hamber with a' water leg 1-7 communicatively connecting a central-Water chamber :8-: off an upright heat economizer sectioil"u'5 tof the-boiler with water leg 7i- -and; water '01" a steam chamber -9: through lower water passagei'l0--iand up- .per water or steam passage -11. 2 f v Between the main boiler section and economizer section *5 I provide a central gas chamber '12.

About combustion chamber 1, I profrom flue l3-immediately to the house flue they would be discharged and lostwhilestill holding the temperature of a very high degree varying from 500 to perhaps 15OO degrees which would be as has been in the past, a great loss of heating energy.

But in order to conserve this normally lost energy for more extensive 'hea'tingpurposes and for more economical operations ofthe heating plant,I' conduct the hot products of combustion coming from the flue -13+ first through a centralgas chamber +12 where they come in contact with sheet of the economizer section forming the enclosing wall for central water chamber S-E of the economizer section .5. From this central gas chamber the gases pass upthrough opening"16 into upper gas chamber"17 through a plurality ofgas tubes Il4 through which they settle to lower levels as they get cooler and .as they settle they give up a greater percentage of their heat to the tubes causing the waterin water chamber 8} to become heated thereby before the gases move out through lower gas chamber 3 to outlet '6- from which they pass i'nto'tlie building fine ata comparatively low temperature. By this arrangement, I obtain what is known as the counterflow principle of'heating water in a most remarkably eflicient man ner with aboiler and economizer organization that is compact, substantially made and economical to operate as well as convenient to move and setup. I

There may be occasions when it would be desirable to provide for the hot products of combustion to pass directly. into the building flue through an outlet 18 in order to create a temporary draught for quickly starting a fire in combustion chamber 1 in which case damper 19 preferably operated by thermostatic control, would be automatically closed within a predetermined timelimit and cause the hot products of combustion then to be directed down through tubes 14' to lower gas chamber 3 and out to the building flue. V In a study of the drawings, it will be observed that I provide for the supportof the coke -20 a grate '.2*1' when coke is used as a fuel) but when oil is used as a fuel the "oil-burner '2 2'f maybe useda nd grate -'21 may be removed. Natural orartificial gas could be burned ina manner similar to the arrangementprovided for burning oil.

Whenit 'isdesired to look into the combustion chamber or put coke therein, door -23 may be opened'for this purpose'and when coke is used ash door 24 may be used as an ash clean-out door.

By observing Fig. 3 it will be noted that I provide along with flue --13- a similar fiue l3 spaced therefrom so as to throw the gases, when leaving the combustion chamber, in contact with a greater area of sheet 15 of economizer section 5 as the gases enter central gas chamber 12- A clean-out hood -25 is provided; above gas chamber 1 7- ofthe economizer section of the boiler while in addition to out-let 6- in lower gas chamber 3, I provide other outlets and 27- 'thatmay be more convenientin some. situations for attachment to a 'buildin g flue depending on the position the heating'plant is required to sit ,in in relation When outlet 6 is connected with the building flue, then outlets 26 and -27 areclosed with a suitable hood 28.

Openings 29' and 30 may be used "as convenient connections with water leg When the boiler'is assembled a pair of side plates 31' and 31- are substantially held into normal operating position by a hood 32 as well as by rods connecting the two plates together indicated by numerals 33 and -34.-.' A draincock 35'- is provided at the lower end of the casing surrounding water leg 7-.

i F or convenience and safety water gauge 36- is provided together with test valves '-'37 While a steam gauge 38 is used {qr determining steam pressure developed in the boiler.

A damper control device indicated by numerals 39 4O, a'nd 41 and 42' may b'e satisfactorily used.

" A floor pan 41-is used for the floor support of the-boiler. Numeral et6-' indicates a steam and water spud. V

, It will be observed that a return pipe connection 43 is provided in the base of central water chamber of the economizer section and when the cold water enters at this point the hotproducts of combustion at their lowest temperature start heating the cold water and as morecold water enters and the water already admitted becomes warmer, the warmer water rises in the central water chamber and establishes communication with water leg 7 of the main boiler through passage 10.; and thus is somewhat heated before it enters water leg 7 which incompasses the combustion chamber 1. It is to be especially noted as thewarmer water rises in. central water chamber -8 that it is caused to rise more forceiullybecause of cold water displacing it than through the fact that itbecomes heated.

The sheets 45- and -4;7 may be made parallel in order that all'upright tubes may be made of equal length butthe upper tube sheet 45 over the central water chamber is inclined toward passage 1l connecting the two water compartments; thus to avoid of the economizer section.

To those skilled in the heating art, it will be evldent that certain minor changes may be made in the structure above disclosed without departing from the spirit and scope of my invention but the preferred arrangements of essential features of my boiler have been hereinabove described and illustrated in the drawings herewith.

Having thus described the nature of my invention, what I claim is:

1. A counterflow heating boiler comprising a pair of upright heating units operatively connected detachably by upper and lower water'connections and separated by a gas chamber communicating with said units and disposed intermediate said units formed by detachable side plates extendingbetween the units and a hood therefor, the first upright imit having a combustion chamber and a water space above said combustion chamber, the second upright and counterflow unit provided with a central water chamber, a detachable clean-out hood and an upper and lower gas chamber communicatively connected through gas tubes extending uprightly through the central water chamber, upper and lower tube sheet-s for said central water chamber of the counterflow unit; said upper tube sheet inclined to direct the hot water and steam through said upper water connection between the units to provide unrestricted movement of hot water and steam from under the upper tube sheet, outlets from the upper and lower gas chambersof the counterflow unit connected with the house flue; means for admitting cold water to the lower part of the cold water chamber of the counterfiow unit and means for discharging hot water and steam from the top of said water chamber ot the first unit.

2. A boiler of the character described comprising in integral combination a boiler unit including an upright combustion chamber encompassed by a water jacket and water chamber and an upright counter-flow economizer unit spaced from said first unit and provided with upper and lower gas chambers and a central water chamber, an intermediate gas chamber between said boiler unit and economizer unit in communication with both units and extending throughout the height of said units; said economizer unit and said boiler unit being connected with each other by upper and lower Water connections and by intermediate detachable side plates engaged by a hood provided with a detachable clean-outcap and closing the top of said upper gas chamber and said intermediate gas chamber; said intermediate gas chamber communicating with said upper gas chamber of the counterflow unit by a gas passage registering with the upper gas chamber of the counterfiow unit and communicating with said combustion chamber of the first unit through hot gas passages disposed relatively lower than the gas passage leading to the upper gas chamber of the counterflow unit; said.

economizer unit provided with a plurality of upright gas tubes extending through the central water chamber thereof supportably secured to upper and lower tube sheets; up-

per and lower water connections for com municatlvely connecting the economizer water chamber with the water chamber of the boiler unit; said upper tube sheet inclined to meet and register with said water connection between the units; gas discharge a fiues connected with said upper and lower gas chambers of the counterflow unit and with the house flue and water intake and out let connections for the water chamber.

3. A counterflow heating apparatus comprising in integral cooperative combination an upright boiler unit and a counterflow heat economizer operatively connected therewith as an integral unit by side plates so as to provide an intermediate gas chamber between the boiler and economizer extending throughout their height, an upper and a 7 lower gas chamber in the economizer connected by a plurality of upright gas tubes supported by upper and lower tube sheets forming a central water chamber between the. sheets; a central combustion chamber for the boiler unit-surrounded by a Water leg and water chamber; said water leg and chamber of the boiler communicating with said central water chamber of the economizer through upper and lower water pipes; said upper tube sheet inclined toward and registering with said upper water pipe to direct movement of water and steam there through fromthe economizer unit to the boiler unit; said combustion chamber communicating with said intermediate gas chamber through gas passages in a manner to discharge hot gases from the combustion chamber first into istering above the economizer unit, gas discharge connections with said upper and lower gas chambers operatively connected with the house flue.

In witness whereof, I hereunto set my hand this 11th day of J ulv, 1927.

j LOUIS D. SUMMERS.

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