US2247796A

US2247796A - Heating boiler

Info

Publication number: US2247796A
Application number: US288318A
Authority: US
Inventors: Harold S Ackerman
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-08-04
Filing date: 1939-08-04
Publication date: 1941-07-01
Anticipated expiration: 1958-07-01

Description

July 1,1941,

H. s. ACKERMAN HEATING BOILER Fi-led Aug. 4, 1939 Big. 4

INVENTOR.

m... ga m A ORNEY.

Patented July I, 19 41 UNITED STATE S PAT 2,247,796 trauma 130mm Eur oFF c Harold S. Ackerm an, Aspinwall, Pa. Application August 4, 1939, Serial No; 288,318

' .7 Claims. (01.122-214) This invention relates to new anduseiul improvements in boilers for heating dwellingsand in multiples in superposed relation to obtain a de sired heating capacity, the sections being flanged to eliminate the need for an extra housing.

A further object of the invention is to provide an economical boiler design especially adapted to individual apartment heating in multiple dwellings so that the heating plant of each apartment or dwelling unit is under the control of the tenant whereby the temperature conditions of the dwelling may be maintained solely for the comfort of such tenant.

A further object is the provision of a tubular boiler section for gas furnaces in which the boiler tubes are horizontally disposedv to expose more radiant surface to the flame and are of a shape to eliminate flame friction or deflected heat to provide an even flow of flame.

Apartments are usually heated by a central plant from which theheating medium is piped to the various apartments, and insmaller multiple dwellings such as duplex construction the difiiculties encountered in providing suitable temperature conditions to both dwellings is well known.

By means of the present invention separate heating units are provided of an inexpensive construction so that the use of separate heating systems is not prohibitive, and by the employment of any number of standard or universal units the desired capacity will be available regardless of the size of the individual dwellings. The invention will become more apparent from a description of the accompanying drawing constituting a part hereof in which like reference characters designate like parts and in which:

Fig. 1 is a vertical section of a boiler and a housing showing the burner in end elevation;

Fig. 2 a similar view taken at right angles to the view of Fig. 1:

Fig. 3 a front elevational view; and

Fig. 4 a side elevational view thereof.

With reference to the several figures of the drawing, the structure therein illustrated comprises a base i on which is assembled a series of a portion of a cycioid curve, having arametric boiler units 2 and 3, one of the units I being interposed between a, pair of the units 2, and any multiple of such alternate units may be assembled to produce a desired heating capacity. A cover or stack element 4 is provided with a stack connectioni. The burner 8 of the conventional goose-neck type or any suitable burner is mounted on a bracket 1 of the base element I. I

As shown in Fig. 2 of the drawing the circulating passages forthe water are substantially V-shaped, as shown at 8, and are staggered so that the products of combustion from the burner 6 are diverted in their upward flow and completeiy envelope the V-shaped elements and the fins 9 thereof. Each unit is provided with an inlet and outlet connection, one at each end thereof, by which they are connected either to the source of water supply or the service line leading to the heat radiating elements, or the units are interconnected at their ends to provide a coninuous flow passage. As shown in Fig. 2, the

threaded connections In and I l are the connections to the source of water and service line,

and the units are interconnected by nipples l2 which are outwardly wedge shaped to effect sealed connetcions with the reamed bores 01 the heater units. This construction lends itself admirably to the stackingof the units, 01' which three are shown in the illustration. Obviously, additional units such as another unit 3 and 2 can be stacked on top of the assemblies shown in the 7 drawing to increase the heatingcapacity of the unit.

The outer periphery of the units 2 are provided with flanges 2a which are of a dimension corresponding substantially to one-half the thickness of the units S'that are disposed between the units 2. By means of these flanges which act as an outside wall, the need for a separate housing is V eliminated. v

' The cross section shape of the tubes is that of equations (a:=a(0-sin B) v (y=a(1-cos B) which lie between upon by the constant force F of gravity.

In this furnace. the hot gases are moved up-' ward bya constant force F equal to the difference in weight of an air column at room'temperature and th; weight of an equal size column of the hot gases.

Conversely, from the above, the cycloid curve presents. the curve of quickest ascent for the molecules of hot gas passing up along the surface of the tube, which is desirable in that the rapid sweeping of the tube by the hot gas removes any insulating layers of cold gas and insures a greater transfer of heat to the tube and hence to the heating medium. This assures exceptionly high efficiency as proven by the fact that we meanabled. through this construction to obtain a greater capacity with a unit weighing approximately half of the conventional type units.

, It is evident from the fore'goingjdescription of the invention that the heating units may be economically produced and are especially adapted for use in heating individual apartments of multiple dwellings. By the proper design of the boiler unit, a minimum number of standard parts are adapted to supply heaters of different capacities, which is a great advantage. I

Althou'gh one embodiment of the invention has mamas l alternate sections being provided with interlocking flanges for enclosing the intermediate sections, forming a relatively tight enclosure for the products of combustion.

outside wall of the end flow passages of alternate v been herein illustrated and described, it will be obvious to those skilled in the art that various modifications may be made in the details of'con-.

struction without departing from the principles herein set forth.

I claim:

1. A heating furnace comprising a 'base constituting a combustion chamber and a boiler section comprising a plurality of horizontal castings having seating flanges whereby the sections may be arranged in superposed relation, each section having a' plurality of parallel horizontal flow passages in the same horizontal plane in communication with the flow passage of adjacent sections to provide a low resistance circulating passage for the heating medium, the passages of said sections being of cycloidal shape, to provide for the smooth rapid flow of hot gasses over the tube surface with a minimum of reflected heat, and with the passages of alternate section in staggered relation to provide'a tortuous path for the products of combustion, and said cycloidal shaped passages being provided with fins to provide a maximum area of contact of the radiant flame therewith.

2. A heating furnace comprising a base constituting a combustion chamber and a boiler section comprising a plurality of horizontal castings having seating flanges whereby the sections may be arranged in superposed relation, each section having a plurality of parallel horizontal flow passages in the same horizontal plane in communication with the flow passage of adjacent 3. A heatingfurnace comprising a plurality of boiler sections in superposed relation, each section embodying afplurality of parallel horizontal flow passages with air ,spaces therebetween, the outside wall of the end flow passages of alternate sections being of a shape to partially overlap the intermediatesections to thereby totally enclose the intermediate section.

4. A heating furnace comprising a plurality of boiler sections in superposed relation, each section embodying a plurality of parallel horizontal flow passages with 'air spaces therebetween, the

sections being of a shape to partially overlap the intermediate sections to thereby constitute the housing wall for the assembled sections, all

of said sections having extending arms forming having horizontally disposed parallel flow passages and having communicating flow passages between adjacentse'ctions, some of said sections having peripheral walls of substantially double the thickness of each section to partially overlap intermediate sections \to thereby house the sections as an enclosed boiler unit in which the products of combustion are confined to travel in contactwith the flow passages.

6. A heating furnace comprising a plurality of boiler sections in superposed relation. each section embodying a pluralityof parallel horizontal flow passages with air' spaces therebetween, the outside wall of the end flow passages of alternate sections being of a shape to partially overlap the intermediate sections to therebyconstitute the housing wall for the assembled sections, said sections having hollow arms extending on opposite sides ioined by nipples to establish communication between' the flow passages of adjacent sections, said sections being centered by the .nipples at one end and by the overlapping outside walls at the sides of the sections.

7. A horizontal boiler tube located above the combustion chamber having its bottom portion only of the cross-sectional shape of that portion of a cycloidal curve having parametric equations a:=a (0-sin B) :11 (1-cos B) which lie between L E a: 3 ands:

HAROLD S. ACKERMAN.