US1118485A - Heating system. - Google Patents

Description

G. C. GILL.

HEATING SYSTEM.

APPLICATION FILED DB0. 1e, 1012.

Patented Nov. 24, 1914.

2 SHEETSBBEET 1.

NVEIVTOR, earye Gz'ZZ,

W @WM ATTORNEY.

rHE NORRD rgTERs Cv.. PnorO-Ll 1Mo.. WASHINL 10N. u

Wl T NE SSES:

G. C. GILL.

ATING SYSTEM.

APPLIUATION FILED DEO.16,1912.

Patented Nov. 24, 1914.

2 SHEETS-SHBET 2.

JNI/ENTOR, eary 6. Gill,

ATTORNEY.

"HI- NORRIS PETERS CO.. PNOTOLITHG.. WASHING TUN. Dv L" M@ mi lUrirrnii sra'rns Permitir onirica. N

GEORGEC. GILL,` OF HOLYOKE, MASSACHUSETTS, ASSIGNOR T0 `lVIAlVGIEILESS HEATER- COMPANY, 0F HOLYOKE, MASSACHUSETTS, A CO1R35(')RA'LIQN` 0F IVVLASiAGHSE'JJTS.;`

HEATING SYSTEM.

T0 all whom it may concern:

Be it known that I, Grenen C. GILL, a citizen of the United States of America, residing atHolyoke, in the county of Hampden and State of Massachusetts, have `invented new and useful Improvements `in Heating Systems, of whichthe following;

is a specification.

This invention relates to improvements in heating syste1ns,-either steam or water,-and it is designed to be used for heating dwelling houses or other buildings. It may also be used for furnishinghot water or steam for sterilizing,` or for washi ing purposes, as, for` example, in .washing and sterilizing milk bottles or other utensils.

The invention, in general, comprises one or more water heaters adapted for burning either gas or any of the oils as crude oil, kerosene or gasolene, and in fuel-controlling means for the flow of fuel to one or more of these heaters, in accordance with the temperature of the room or building to be heated, or water or steam required. This controlling mechanism may be either a pressure regulator connected with the boiler, or it may be a thermostatic control of any desired type,-that is operated by variation of temperature.

The invention further comprises a re-` ceiver, which may be similar to a tubular boiler, to contain the hot water or steam which circulates through the water heaters, and a jacket around this receiver or boiler to confine and direct the heated products of combustion as they escape from the burners so as to obtain the best results.

The invention, in general, resides in the system employed and its application for heating the water or for generating steam,

rather than in the specic` construction of the burners themselves.

lin the drawings `forming part of this application,Figure lis an assembled `view showing three burners for heating the water as it comes from the house mains or from the return pipes of the system for generating steam, and, in partial sectional view, the

receiver having longitudinally arranged tubes through which the heated products of combustion pass, and the inclosing casing about the receiver to .confine theseproducts of combustion before they escape to the chimney. This figure also illustrates theY pilot lights for the heatersand the auto#` het Specification of Letterslatent. Patented N0V 24,1914` Appiioation inea December 1c, i912. seriai No. 'feesie matic fuel control mechanism between the pressure regulatorand the pipe connected with the gas mains which furnish fuel for the hot water heaters. Fig. 2 is a vertical, transverse view in sectionon the broken line 2-2 of Fig. l, showing the construction of the receiver and the inclosing `casing and clearly illustrating the discharge or outlet pipe from the heaters,` which pipe is designed to discharge steam from the heaters into the receiver. This ligure also illustrates the arrangement of the receiver within the casing so as to confine the heated products of combustion. Fig. `3 is adetail, vertical view in section showing the interior construction of the heater proper which ini cludes inner and `outer shell members to provide a water jacket therebetween, the inner shell member being corrugated for the purpose of ncreasingits strength and `also furnishing a larger heating surface for the heated products of combustion. The ligure also `clearly `illustrates the arrangement` of the heating coils through which the water to bevheated passes and around which the heated products of combustion pass. Fig. l is a detail sectional view similar to Fig. 2 on the line 2--2 of Figi` but looking from the left and showing the pipe from the heater terminating at the lower part of the receiver wfhenused as a hot-water system.

Referring to thedrawings in detail, a

YZ communicates with a discharge end lg of thecoiled tubes within the heaters a. These tubes, as shown in FigQB, comprise coils t that are located within the inner shell z',-.

the innerer water inlet end of the tube bel ing indicated at `y which receives the par-` p tially heated water from the jacket space between the inner 'and outer shells of the heater. This space communicates at its lower end with the main pipe lc that extends to" the house mains or `to a suitable force pump, shown conventionally at 101, and aiu shut-oft1 valve at 7a2 when the force pump is used for forcing the water into the receiver.

The cold water, as it enters the annular jacket space Z between the inner and outer shell members al and a2 of the heater, passes upward and is warmed, or partially heated, from this inner shell Vbefore it enters the annular space m into which it discharges. From this space it enters the coils z, at the terminal j, as stated, and then passes downward to the bottom of thelheater by means of the straight portion n of the heater coils, and then upward through the `coils h, from which the heatedwater is discharged into the dome Z and from this dome it passes upward through the pipe e into the reservoir or boiler b.

llt should be stated that the pipe la is directly connected to the receiver b'by means of the pipes 0 and 01 which extend upward to thelower part of the receiver The cold water from the house main passes up; ward vthrough the pipe y), if the vvalve 11 is closed then through the float-controlled valve Q' to the pipe 291 downward to the pipe' it', where it is conveyed to the heaters a. The

llevel of the water in the receiver or boiler is maintained by means of the float valve g' in the ordinary manner. The pipes 29 and p1 which are connected to the pipe c may be considered together as constituting a branch connection in which the valve is located. y

, r designates the burners at the lower end of the heaters a. rfhese burners are supplied with gas, or other suitable fuel, by means of the pipe connection s. A valve t is located in this pipe for regulating the flow of fuel to the burners.v This valve t is designed to be operated from a pressure` regulator u which, in turn, is operated from the steam pressure within the receiver Z). lThis regulator is of the ordinary diaphragm construction, the weight-lever 'v of which is connected, by means of a flexible member t0, to the valve-operating arm m of the valve t. means of a thermostat of any well known "t i e if desired as 'areviousl stated the 3p 9 7 l y 7 controlling mechanism is not limited to a pressure regulator that is connected with the boiler.

`flhe heated products of combustion from i the burners r pass upward through the inner shell member a2 of the heater and-1n direct contact with the coils 7i. These heated products of combustion, as they escape from the upper ends of the heaters through openings m2, pass into the casing y which surrounds the receiver Z) and extends downward to'and below the water-dome d and is attached to the casting of the annular water-space m at m1, as shown. heated products of combustion pass through The valve tinay `be controlled by- From this casing, the' `of combustion from gaining access around the endof the receiver Z) to the upper portion of the casing y and above the receiver b, a partition plate e is used, as indicated in Fig. l, between the ends of the receiver ZJ and the casing 1, and in order to prevent these gases from' passing around the sides of the tanlryb it will be noticed from F that the outer curvedsurface of the re ceiver and the inner curved 'surface of the casing y are in contact with each other, as i indicated at v5;"that is to say, they-are in tangential relation to each other at this point. .By reason of the location of the plate L at the right-hand end of the receiver Z) and the plate llat the left-hand end, the heated products of combustion are caused to flow through some ofthe tubes in opposite directions, as indicated by the arrows 02 be-. fore they ypass above the receiver, as shown at c3 before they enter the chimney 3. In the chimney is located a damper or draftcontrol plate 31. The outlet for both the steam and hot water from the receiver is by means of the pipe 6, as shown in Fig. l.

vConnected withthe fuel main s is a pilot pipe 7 having branches 8 leading therefrom to the burners r, and located in these branches are shut-off valves 9 to control the flow of fuel to the pilot lights, as at times only one of two of the water heaters may be in used. Y

ln the operation of the present invention, it is designed to have a pilot light burning at all times and then, by simply opening the main valve t by means of the pressure regulator, or thermostat, more or less fuel may be supplied to the burners r, thus automatically regulating either thetemperature of the water, or the pressure of the steam within the receiver or boiler .s1 designates branches kleading from the pipe s, and located in these branches `are shutoff valves s2 for the purpose of cutting off the flow vof gas, or other fuel, when some of the heaters are not in use.

lt will `be noticed that the shuteoii" valves y s2 aire located very close to the burners r in order that there may be as shortv a length of pipeconnection between the burners r. and the shut-off valvess, as possible to prevent a large *olume of air beingV retained and confined therein in this pipe connection with the consequent result that, when the 'l the `operator zwhen the supply of gas is` turned on asthe valves s2 are opened. As

an alternative operation, when it is not 1` thought necessary to have the cold water from the house mains pass upward through the pipe 29 past the valve g to the 4pipe p1 to the heaters a, a shutoff valve l0 in the pipe is provided, whereby whenjthis valve is closed and the valve l1 in the pilie 7c is open, the city water passes directly to the heaters a. i

Located in the pipe 7c and at the right `of the shut-off valve 11 is acheck valve 12 to prevent the baclei'low off water from Vthe heaters, but will permit Water topass from the house'i'nains to the heaters. A second check-valve 13 is located in the return pipe to prevent water from the heaters flowing therefrom to the return pipe. l rlfhis return pipe is indicated by 14. The circulation of of heaters.

it is clearly within the provisions of the present invention to control the `valve t by suitable therinostatic connections that may be located in any part of the building Where it is desired that the temperature shall remain constant. This `thermostatic `connection is prefe `ably one of the `electrical type in which a suitable electromagnet may be employed for operating the valve-control ling arm a; of the valve t.

When the systemis used as a hot `Water heating system, the pipe@ would terminate near the lower part of the receiver l), as indicated at el in Fig. l. A suitable Water level gage is indicated at 131, and a steam pressure gage at l5. From this construction, it will be seen that this system compries two means for heating the water,-

one the receiver or tubular boiler, and the other the heaters,that is to say, one is supplemental to the other. l

ylfhe operation of the system is as follows, iirst considering the invention when used/asa hot water heating system with the receiver and all pipes full, it being understood that the valve ll inthe pipe t' is closed: ln starting up, if water in the receiveror boiler 7) is cold and the burner r is ignited, the heated Water will flow upward from the heater, by `means of the pipe e, into the receiver, escaping at the outlet end c1. the receiver will flow downward through the 60 direct connection between the receiver and heater by means of the pipes 0 and 01 into and through the heater coils.` This local circulation will continueuntil the water in I, the entire system is equally heated, when the 6') cold water will return to the heaters the heating medium is as usual in this class` See `Fig. 4s The cold water from through the return i. pipe 1.4i from the radiators. After the system thoroughly heated, the hot water will `ilow from the re- Coiver Z),.by means of the pipe (i, to the radiators, and return .to` be re-heated by means of the return pipe 14 as stated.

Vhen used `as a hot water heating system, the `valves `10 and l1 must, of course, be closed. The valve ll may be opened for` a short period to supply any loss that may have occurred. When the system is used for furnishing steam, the valve 'l0 is opened and the `valve 11 is closed. 'lhc float valve g automatically maintains the correct Water level in the receiver or boiler b. The water nowflows as follows when the fioat valve q is opened: pipes lc, p, p1 and either tln'ough 0 and 01 or up through the coils of the heat ers a,-the steam generated in the heaters escaping at the upper end of the pipee, at f. When the correct water level isreached, the float valve g closes; the products of combustion passing through the tubes c serve to maintain a steam pressure in the receiver The casing y is preferably covered or jacketed `with some non-comluctor cil heat,` as asbestos or mineral wool.`

When the invention is used as a hot water heater system, it `would.probably be found. desirable, in order to make the system prop.- erly operate, to connect an expansion tank with one of the radiators,-preferably.the one nearest the upper part of the building. Such expansion tank would then take care `of any undue pressure that might arise,

should the water become too hot.

By constructing and ar anging the surrounding casing y, as shown, the heated products of combustion are :made to engage all of the outer surface of the receiver. The contact of the casing with the receiver att, and placing the baille plate 1l in the same plane as this line of contact, and placing the other plate Lil at the upper rear end of the receiver, the heated products of combustion will travel as herein shown and described.

What I claim is l. In a heating system, the combination, a tubular boiler or receiver, a heat confining` casing` surrounding the same and `having portions of said casing engagingthe outer longitudinal surface of the tubular boiler or receiver on lines that are oppositely located, said casing extending both above and below the receiver to provide spaces to receive the heatedproducts of combustion, a source of a water supply, a Water heater located at the depending lower portion of the casing, baiilcplates located between the ends of the receiver and the casing, the casing and said baille-plates being designed to confine and direct the heated products of combustion and cause them to pass through the tubes of said receiver in opposite directions, a branch pipeconnection between the interior of the tween the casing and boiler, and the other haine-plate at the upper rear end of the receiver to cause the heated products of coinbustion freni the heaters to flow as described.

2. A heating system having in combination, a tubular receiver to Ireceive and retain the heated Water, a casing surrounding the receiver and contacting With the op? posite sides of the receiver to prevent the heated products of combustion from passing upward and around `the sides thereof, said casing being longer than the receiver' and projecting beyond the opposite ends of the receiver to provide a space between the ends of the receiver and casing, a bathe-plate located in the space at the ends of the receiver to cause the heated products of coinbustion to pass through the receiver in opposite directions, said casing being spaced aivay from the top of the receiver to provide a passageway for the products of combustion to an outlet or chimney in communication with the passageway, heaters connected to the receiver for heating the Water before it is discharged into the'receiver, a source of Water supply, and pipe connections between the source of supply, the heaters and the receiver, the lower `sides of said easing being extended'doivnward to and connected With the upper end of the heater, all constructed y and arranged'wvhereby the heated products tion with the interior of said surrounding casing, a beide-plate located in the space atl the opposite ends of the receiver, to cause the heated products of combustion to oiv in opposite directions throughthe tubes of the receiver, ineans to conduct the heated Water to the receiver, burners for the heaters and nieans to control the fuel supply.

. GEORGE C. GILL. Witnesses WM. H. CHAPIN, lfl. CLnMoNs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, 3D. C.

Images