US2133836A - Furnace - Google Patents

Description

oct. l1a., 193s.

w. svE'JKovsKY FURNACE Filed Jan. 15, '1957 INVENTOR ATTORNEY Patented Oct. 18, 1938 UNITED s'r-TEs .wat@"lvlelizfiiai, to the bun'ersrj' After the adjusting Qperation'the- The invention relatesto furnaces and particularly to the -pipeless type, and hasfor its object' to provide afurnace of this character wherein the products Vof combustion pass to the flue through a plurality of drums in Yan upwardly and downwardly direction, thereby wiping the walls of thedrum interiors so that the heat units therein will be taken up and radiated and absorbed by the falling of cold air, which is heatedso it will pass upwardly andV be discharged into a room.

A further object is to position all of the drums in spaced relation but adjacent each other Whereby air passages for the heated air is formed be-V tween the drums as well as to the outer side thereof, thereby obtaining-maximum radiating surface around the drums in spaced-relation thereto andbetween the down-flowing cold air and up-flowing heated air and'forming an insulating chamber whereby the up-flowing air will not aiect the down-flowing cold air.

With the above and other objects in view. the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise embodiment of the invention may be made Within the scope of what is claimed without departing from the spirit of the invention.

In the drawing: Figure 1 is a perspective View of the furnace showing parts of the various casings broken away and in section to better show the structure.

Figure 2 is a top plan view of the furnace. Referring to the drawing the numeral I designates the rectangular shaped casing of the furnace which houses all of its parts. Disposed centrally within the rectangular casing I is a rectangular shaped main drum 2, Ain the lower end of which is disposed a conventional form of gas burner unit 3. It is to be understood however that any kind of a burner unit may be used. The upper end of the main drum 2 is provided with a removable closure 4, which may be removed so the operator may see the flames from the burners 3, or the pilot burner 5, during an adjusting operation. Gas is applied to the burners 3 through the gas supply pipe 6, and the pilot supply pipe 'I in the usual manner, and these pipe lines are provided with control valves 8 and 9 having upwardly extending valve stems I0, terminating adjacent the floor II of a room where they may be easily operated by a conventional form of key for regulating the ow of gas closure 4"'is closedv It will 'be noted that thelmainl drum 2 Lis rectangular shaped, thereby providing.

a plurality-'of lfl'at-'vwalls -I-2; v f f v'Surrounding-the 'mainv drum 2 yis a plurality of auxiliary drums I3, which are triangularly shapedl in` .horizontalfcrossfsection and have ftheir .inner wallsl4lin`-parallel relation' tothe-Walls I2 off the v-inain' Adrum -2 landv in spaced relation thereto,r

thereby forming'passage's' through which the up'- flowing' air,to be heated will pass and be heated from both sides of theco'lumnfof up`1lowing air..v

The heat from the burners 3 passes upwardly auxiliary drums to the main d-run'i..4

-The productsocombustion 'and 'the fheat then pass-*downwardly fthrou'ghf the triangularly# sl'iapec'll 4auxiliary drums -I 3 intor engagement' with I the baille plates I 6. Barile plates I6 are shapedl whereby the products of combustion, in passing each baille plate, are forced outwardly around the edges I1 of the plates and into engagement with the outer walls of the drums, thereby insuring a wiping of the walls of the drums by the prod ucts of combustion and the radiation of the heat units to the column of the air being heated as it passes upwardly in engagement with all the outer walls of the main and auxiliary drums within the insulation casing I8. The insulating casing I8 surrounds the auxiliary drumsin spaced relation thereto'and has a dead air space I9 therein for preventing loss of heat units to the downwardly flowing cold air passing through the cold air chamber 20 within the casing I. The cold air passes downwardly in the direction of the arrows a and upwardly around the lower edge of the` insulation casing I 8, and is heated as it passes upwardly, wiping the outer walls of the drums, and is discharged into the room. It is to be understood a conventional form of grating may be placed over the furnace in the usual manner. To prevent the too rapid flow of the products of combustion to the chimney ilue pipe 2| through the discharge pipe 22 and downwardly draft preventer 23, a triangular shaped restricting plate 24 is provided in each of the auxiliary drums adjacent the flue pipe 2 and'above the pipe 22, and provided with a central discharge opening 25. It will be seen that the plates 24 will have a choking effect or back pressure effect which will prevent the .too rapid passage of the heat and products of combustion to the flue, thereby allowing the absorption of the heat units to a maximum degree by the in-rushing cold air as it is reheated, consequently reducing flue heat loss to a minimum.

The lower ends of adjacent auxiliary drums I3 are connected together by pipes 26, which discharge into the drums I3 adjacent the flue pipe 2| below the choke plates 24, thereby allowing the equalization of the choking effect through the drums.

The down draft preventer 23 is provided on the iiue pipe 2| .for preventing a down draft from extinguishing the pilot or burners or having an effect upon their efficiency. It consists of a rectangular shaped casing as shown in Figure 1, which has its lower end open and a partition 21 extending to the bottom of the casing and spaced from the upper end of the chamber therein. through the pipe 22, thence downwardly and over the partition II in the direction of the ar-V rows b to the chimney fiue pipe 2I. If there is a `down draft, the down draft will engage the partition 21 and will pass through the` open bottom of the casing and be discharged from the device into the basement or room in which the furnace is placed.l

By forming the various drums rectangular and triangular shapedL as shown in Figure 2, it willbe seen that a rectangular shaped assembly is obtained within the insulating casingA I8 which places all of the walls in parallel relation and spaced so that large radiating surface is obtained for the heat units and the 'heated air rises in relatively narrow columns of uniform thickness thereby insuring a uniform heating of the columns of up-moving air.

From the above it will vbe seen that a hot air furnace is provided, which is simple in construction, and one wherein a maximum heating surface is obtained, and the drums provided with The products of combustion pass main casing, insulating means carried by the v auxiliary casing, a rectangularly shaped main drum within the auxiliary casing and having its corners substantially ninety degrees from the corners of the auxiliary casing, triangularly shaped auxiliary drums inthe similarly shaped chambers formed by the main drum and corners of the auxiliary casing, a heating element in the main drum, flue connections between the main and auxiliary drumsfor passage of gases-therethrough, the adjacent faces of all of the drums being in spaced relation to each other and in spaced relation to the auxiliary casing thereby forming fiat air passages for the passage of heatedair.- 4, 3

2. A device as set forth-in claim l wherein the flue connections between the drums comprise radially extending members from the adjacent fiat sides of thedrums and members extending across the corners of the main drum and connecting thetriangularly shaped drums.

3. A` deviceas set forth in claim 1 wherein the adjacent sides of the main and auxiliary drums are flat and equidistant from each other and the corner angles of the auxiliary drums and outer sides thereof parallelto the adjacent portions of the corners ofthe auxiliary casing.

WILLIAM s VEJKoVsKY. jl

Images