US1651613A - Boiler for hot-water heating plants - Google Patents

Description

DecQG, 1927.

w. F. M PHEE BOILER FOR HOT WATER HEATING iLANTS Filed June 11 1925 2 Sheets-Sheet 2 R 0 T N E V N W I. H PHE E BY. M (6;

ATTORNEYS Patented er. 1927.

WILLIAM FRANCIS MOPHEE, OF CHICAGO, TILLIN 01S.

BOILER FOR HOT-WATER HEATING PLANTS.

Application filed June 11,

My invention relates to improvements in improved boiler for hot water heating plants, and it consists in the combinations, constructions, and arrangements herein de-.

a scribed and claimed. 1

An object of my invention is to provide an improved boiler of the-type described by means of which initial circulation in the hot water heating system brought about immediately after establishing a lire in the fire bog: by generation of steam in a unit of the boiler closely adjacent to the fire in which a small quantity of water is placed.

A further object of my invention is to provide an improved boiler for hot water heating plants of the character described in which vertically disposed chambers are rovided in the boiler jacketand which communicate at their lower ends with the inlet openings of the heating units, whereby water admitted to the heating units is taken direct- 1y fromthe top portion of the boiler water jacket where it is at its highest temperature.

A further object of my invention is to provide an improved boiler for hot water heating plants of which the construction is such that the products of combustion must travel along the entire surface of the several heating units before the gases are permitted 311 to escape through the flues.

A further object of my invention is to provide an improved boiler for hot water heating plants in which direct circulation vertically through the units is prevented.

A further object of my invention is to provide a boiler for hot water heating plants in which the possibility of accumulation of minerals on the inner walls of the units is practically precluded due to the absence of do cavities, corrugated surfaces, and the like,

which ordinarily serve to promote such accumulation.

A further object of my invention is to provide a device of the type described which as is simple in construction, durable, and thorou hly practical commercially.

ther objects and advantages will appear in the following specification, and the novel features of the invention will be particularly 160 pointed out in the appended claim.

My invention is illustrated in the accompanying drawing forming part of this application, in which Figure 1 is a sectional view of an embodiment of my invention,

1925. Serial No. 56,476.

Figure 2 is .a sectional view along the line 2-2 of Fig. 1,

Figure 3 is a sectional view along the line 3 33 of Figure 1,

Figure 4: is a section alongthe line 4-4 of Figure 1, and

Figure 5 is a sectional view along the line 5-5 of Fig. 1.

In carrying out In invention I make use ot a substantially be -shaped vertical water acket 1. The water jacket is provided with a passageway 2 theretlirough at the upper enl, and has an inlet 3 ad acent the lower en An oil burner 4 is provided with a deflector plate 5 and is disposed withinthe inner wall 8 of the jacket. The deflector plate 5 is so constructed as to deflect flames 6 toward the inner wall of the jacket 1.

The water jacket is provided with a pair of auxiliary outlets 7 at the upper end which may be used in certain types of heating systems requiring more than one outlet.

The heating elements of my improved boiler comprise a plurality of relatively thin pancake units having extremely thin side walls. The first of the units is shown at 9 and is connected at diametrically opposite points to the water jacket 1 by the provision of tubular neck members 10. i 35 This unit 9 is substantially annular in contour and its outer peripheral wall 11 just clears the inner wall 8 of the jacket 1 s that expansion of the unit will not injure the jacket but so close as to prevent the passage of the products. of combustion between the wall 8 a d the unit 9. The. central passage of the annulus is shown at 12 and is sufliciently large in diameter to permit the produets of combustion from the burner 4 to pass therethrough, having first been deflected from the adjacent wall portions of the wall 8. The unit 9 is so close to the, burner 4 as to permit the actual genera ion of steam therein, which is for the purpose of exciting 1M and starting circulation of waterv directly through the radiators or other heating devices used with boilers, in a manner hereinafter described.

The unit 9 is connected by means of a pair of diametrically opposed vertical passages 13 which are connected with a similar pair of passages 14 forming a part of the second unit shown. at 15 in Figure/1. This unit 15 is constructed of the same'thin mas Ill terial of which the unit 9 is constructed.

The unit 15 issubstantially three inches less in diameter than the distance from opposite points of the wall 8, so that theprodnets of combustion must pass between the peripheral walls 16 of the unit 15 and the .adjacent portions of the wall 8;

A. third unit 17 is connected by means of connected passages 18 and 19 associated with the units 15 and 17 respectivel'y-tothe unit 15. From inspection of Figure 3it will be noted that the passages 19 are disposed substa tially 90 from the passages 13. Thus'dir ct circulation of water from the unit 9 to the unit 17 is prevented. v

The only difference between the units 9 and 17 is that a passage20 corresponding to thepassage -12in function through the the unit-'9. The unit 17 is connected by -means of vertically extending diametrically rear portion of the jacket 1 as sho unit 17 is disposed toward the rear wall of the unit 17, and out of'alignment with the passage 12. The outer eripheral wall 21 of the unit 17 lies close y adjacent to the inner wall 8 of the" jacket -1as in the case of opposed passages 22 with a last or upper unit 23. This unit has its outer peripheral wall 24 extending for substantially 270 of its circumference, in close engagement with the adjacent wall 8 of the jacket 1. 5 The remaining 90 degrees bein disposed at the forward portion of the unit is set back from upper portion of the unit 23, and extends,

through the opening 2' in the jacket 1. This I tubular neck is threaded as shown at 29 and a lock nut 30 is disposed upon the threaded portion and arranged to bear upon the outer surface of the'jacket 1 so that by tightening the nut 30 an upward pull is exerted upon the vertically aligned units 9, 15, 17 and .23. Itshould be understood of course that suitable pacln'ng may be disposed between, the

l portion 30 and the wall of the jacket, so as lea gtherethr to revent the prodnlc-ts of combustion from 7 From an inspection of the drawing it will be noted thata pair of vertical comparti ments areprovided on each side. of the'water jacket 1 b the provision of parallel side walls 30 w ich open with a. bottom wall 31 as tocause water admitted to the inlet openings of the tubular neck members 10 to be drawn from the top portion ofthe water jacket. The height of'the walls 30 is just short of the top crown plate of the jacket.

mouth of the tubular passages 10.

E From the foregoing description of the various parts of the device the operation I thereof may be readily understood. My improved boiler for" hot Water heating plants is especially well adapted for use where it is desirable to supplyfhot water in radiators upon a relatively short. notice. The boiler may be successivelyv used in very small in: stallations requiring small quantities of Water, or in large installations in which a large number of radiators are employed. In the latter event, the number of units is increased, as well as thevolume. The increase in volume is usually effected by in creasing the diameter and not the height of the units.

' Let us assume that the water system is of normal temperature, and that it is desired to supply hot water to the radiators. this event, the burner 4 is actuated, causing the flames and the products of combustion thereof to be deflected by the deflector plate 5 toward the wall 8 of the jacket 1. These flames and products of combustion can not pass between the wall 8 and .theends 11 of the unit 9, so they must move toward the vcenter of .the combustion chamber along the lower wall of the un'it,9 and up through the passage 12. k

The course of the flames and hot gases will then follow the lower wall of the unit 15 and up past the peripheral wall 16 of the unit, whereupon the hot gases will rise and be deflected from the adjacent walls of the jacket 1 of the lower wall of the unit 17 toward the rear central portion of the unit 17 and up through the passage 20. Y

The course of the hot gases and products of combustion willthen be toward the rear under surface of the unit 23, whereupon they must continue to the front wall 25 of the unit 23 and pass upwardl overthe unit 23 and out of the flue26. t should be noted that the major portion of the unit 23 lies close to the wall 8 of the jacket 1 while'only the forward portion of the wall 25 is away'from the wall to permit the passage of gases there- -beyond. I 8

Having thus followed the course of the products of combustion, it is evident that practically every portion of the surface of the units is encompassed in hot gases. Therefore nearly all of the heat therefrom may be absorbed by the. water within the units. Y From" inspection of Figurel it will be noted that the unit 9 is relatively close to the burner 4.- The walls of this unit as well as the remainin have been described as relatively thm. My object in providing especially thin walls'is to permit the transmamas through the aligned passages 13 and 14-. of

the units 9 and 15 respectively, thus exciting circulation of water through the units. The outlet 29 is connected directly with the main feed pipe to the radiators. It is obvious that ,water from the boilers must circulate through the radiators and supply heat in the vicinity of the radiators.

In Figure 1 I have shown an auxiliary outlet 7 for the jacket 1 which may be used where more than one outlet is desired, or a connection to the pipe 29 if circulation should prove to be too rapid.

All water admitted to the units must pass through the vertical compartments formed by the merger of the vertical side walls 30 and bottom walls 31, which means, of course, that water admitted to the unit is drawn from the top of the water jacket and not from the surrounding portions of the water jacket in the vicinity of the tubular inlets 10.

This construction greatly facilitates the continuous operation of the system, and affords a practically constant supply of hot 30 water. The water at the lower portion of the jacket is heated principally by conduction and by merger with the warmer water at the top. I

I claim:

A boiler for hot water heating plants comprising a combustion chamber, a water jacket enclosing said combustion chamber and having a top arcuate-shaped in cross section, the water jacket being of uniform thickness throughout, a plurality of water heating units disposed in said combustion chamber, water passageways disposed in said water jacket having their lnlet openin disposed adjacent to the top of the water acket, and havin their outlet openings communicating wit the lowermost heating unit a cold water inlet pi e for said water jacket communicating wit the water jacket adjacent to the bottom thereof, water'conduits connecting adjacent heating units together, said water conduits being staggered with respect to each other for causing the entire volume of water within the heatlng unitsto flow upwardly as the water is heated, the uppermost heating unit having a conicalshaped outlet passageway disposedin the center of the heating unit, whereby all of the water in the uppermost heating unit will pass through said conical-shaped passageway, and an outlet pipe connected to said outlet pasageway.

WIIAM FRANCIS MOPHEE.

Images