US858423A - Steam-boiler. - Google Patents

Description

H. STANTON. STEAM BOILER.

Y APPLIOA'IION IILED mun-12. 190a.

' 2 sums-21mm 1.

mmmm I wih wooeo I I I Juan? ark-nun fill mm: PII'IRS 50., WASHINGTON. E c

, PATENTED JULY 2, 1907 2-SHEET8SIIBET g.

H. STANTON. STEAM BOILER. APPLIOATION FILED JUNE 12, 1906.

THE mum's PETER; :0., wasnlncnm. 0. c.

UNITED STATES PATENT OFFICE.

HENRY STANTON, OF BARNESVILLE, OHIO, ASSIGNOR. OF ONE-HALF TO JAMES DURANT BLAKEMORE, OF BARNESVILLE, OHIO.

To all whom it may concern:

Be it known that I, HENRY STANTON, of Barnesville, in the county of Belmont and State of Ohio, have invented certain new and useful Improvements in Steam- Boilers, of which the following is a specification.

This invention relates to improvements in steam boilers and more particularly to that type which comprises a horizontal drum having water legs co-acting therewith.

In the preferred embodiment of my invention, I employ a horizontal drum having several water legs projecting downwardly therefrom, and these water legs are so arranged that the products of combustion have to pass completely around them before they can find their exit through the stack. And with these water legs is also preferably combined a superheater which is connected with the upper part of the drum so that the steam passes from the latter to said superheater before being delivered to the place of use. The aforesaid water legs are also provided with studs which greatly increase their efficiency. 7

vWith this general statement, my invention may be said to consist in the boiler as will be now hereinafter described in its preferable embodiment and then definitely set forth in the claims at the end hereof.

In the drawings accompanying and forming part of this application: Figure 1 is a longitudinal central section of a boiler showing the preferred embodiment of my invention. Fig. 2 is a vertical section of the same through the line 2-2 of Fig. 1. Fig. 3 is a similar section through the line 33 of Fig. 1, and Fig. 4 is a side elevation showing the connections with the. various pipes.

Referring now to the details of the drawings by numerals: l. designates the drum which is preferably supported on the front and rear walls 3 and 4, as clearly illustrated in Fig. 1. At-the bottom of the front wall 3, I preferably arrange the furnace which consists of the usual fuel chamber 6 and ash-pit 8 and grate-bars 10 between the same. The grate-bars are supported at their rear ends by the usual bridge-wall 11, and immediately over the front of the grate, at the top of the fire chamber, is a horizontal baffle plate 12. The details of the furnace, however, need not be further mentioned, since any preferred form of furnace may be employed, and the furnace illustrated is merely one which is now quite commonly used.

As will be seen in Fig. 1, I employ three water legs l4, l6 and 18 which project downwardly from the drum 1. The first of these legs 14 projects vertically downward and is a little less than the full width of the chamber in which these legs project; but the other two legs 16 and 18 project downwardly at anangle and differ from-the first leg 14 in extending the full width of the combus- Specification of Letters Patent.

Application filed June 12. 1906. fierial No. 321,406.

Patented. July 2, 190?.

tion chamber and completely occupy the same transversely, as will be seen from Fig. 2. These water legs are, of course, formed hollow as all water legs are, but in order to increase their efficiency, I employ studs 20 which project outwardly into the combustion chamber on both sides of their respective legs. I do not herein claim these studs as broadly new, since they are claimed in one of my own prior patents, but I consider them as of great advantage in materially increasing the heating power of the downwardly projecting water legs.

It is a Well known fact that a solid stud projecting from the bottom of the boiler and extending into the water has to project over six times its diameter before it will burn off, and since one square inch of heat surface on the stud is equal to about six square inches of heating surface on the boiler sheet, the advantage of using these studs will be obvious. And when they are used in connection with the water legs, as shown in my drawings, in such a manner that the products of combustion have to pass first down one side of the leg and then up another side of the leg, contacting with these studs and the legs in its passage to the stack, I produce a new effect which gives me the maximum heating capacity. At the rear end of the druml, immediately under the same within the combustion chamber, I locate my feed water heater 24 which is connected to the drum by means of a connection 26 and is also connected to the water legs 14, 16 and 18 by means of the horizontal pipe 28 connecting, by means of the vertical pipe 30, with the horizontal pipe 32 which is connected to the Water leg 14, as indicated at 34 in Fig. 1 and to the water leg 16 at the point indicated by the numeral 36 and to the water leg 18 at the point designated by the numeral 38. v

I have hereinbefore referred to the fact that the front water leg 14 is not of the full length of the combustion chamber while the other water legs 16 and 18 are of the full length of said chamber. I have also referred to the fact that the products of combustion are caused to keep in contact with the studs projecting from these water legs, and in order to make this more effectual, I '10- cate two walls 40 and 42 in close contact with the studs projecting from the right hand side, as seen in Fig. 1, of the water legs 16 and 18. The first of these walls 40 is supported on a horizontal support 44 under which is arranged a damper 46 and on each side of which may be arranged clean-out openings 48 and 50. The other of these walls, 42, rests upon a projecting part 52 of the brick-work of the rear wall 4. It follows from this construction that, when the damper 46 is closed, the products of combustion have to pass up behind each water leg, and between said leg and its wall before passing from one leg to the other, or from the last leg to the stack.

Between the two waterlegs 16 andl18, I prefer to arrange a superheater 60, and this superheater has one pipe 62 connecting it to the upper side of the drum 1, while the opposite end of the superheater has'a pipe 64 connected to it which may lead to the place where the steam is to be used. I desire to call particular attention to the location of this superheatcr, sinceit is in one of the hottest parts of thefurnace, and by examining of Fig. l it will be seen that it is interposed between the two water legs 16 and 18 at a point where the products of combustion pass over the top of the wall 40 before going down the other water leg 18.

While my boiler is so simple that no description of its operation is necessary, it may nevertheless be well to state that the products of combustion are as follows: When the fire is starting, the damper 46 is open when there is a direct draft from the top ofthe bridge wall directly under the water legs 16 and'up between the water leg 18 and its wall 42 to the stack; but after said damper has been closed, the products of combustion have to take the circuitous path indicated by the arrows in Fig. 1. In other words, as the heat cannot now pass through the damper 46, its tendency is to first rise and, since the first water leg 14 is not of the full length of the cylinder, any heat which ascends directly upward will be allowed to pass over against the side of the water legs 16, and all the products ofcombustion are thereafter caused to pass between the bridge wall and the lower end of legs 16. The products of combustion then pass around the lower end of the water leg 16 and up the whole length of the said leg, thoroughly heating the studs between said leg and the wall 40. After passing upwardly the whole length of said wall 40, the products of combustion now have to pass around the superheater and downwardly the whole length of the water leg 18,

, thus contacting with all the legs projecting from the left hand side of said leg, as illustrated in Fig. 1. When the products of combustion reach the lower end "of the water leg 18, they have to pass around it and up between the other side of the water leg and its wall 42, again passing the whole length of the water leg 18 before reaching the stack.

heat to the greatest possible extent.

While I have shown in my drawings what I now consider the preferable embodiment'oi my invention, it is obvious that changes may be made without departing from the spirit of my invention.

What I claim as new is:

1. In a steam boiler, a water chamber, a plurality of legs projecting downwardly therefrom, one of said legs being not of the full width of the combustion chamber, and the other legs being. of the full width of said chamber, and means for causing the products of combustion to make a circuitous path around said legs, substantially as described.

2. In a-steam boiler, ,a-water chamber, a plurality of water legs projecting downwardlytherefrom, one of them being substantially over the furnace and occupying less than the full space of the combustion chamber, and the other water legs projecting downwardly at an angle, and

stantially as described.

3. In a steam boiler of the water leg type, a water chamber, water legs projecting dowmvardly therefrom, one of said legs being substantially over the furnace and needpying less than the full space of the combustion chamber and the other legs occupying the full width oi.- the combustion chamber whereby the products of combustion are caused to pass around said legs before reaching the stack, and a superheater located under said water chamber and between the water legs, substantially as described.

4. In a steam boiler, a water chamber, a plurality of water-legs projecting downwardly therefrom, one of said legs projecting substantially over the furnace and being of a width less than that of the combustion chamber and the other legs being of the full width of said chamber, and walls, as 40 and 42, co-acting with the full width of the water legs and causing the products of combustion to pass around the water legs before reaching the stack, in com bination with a damper located at the bottom of one of said walls to provide a direct draft, substantially as described.

5. In a steam boiler, a horizontal water chamber, a plurality of water legs projecting downwardly therefrom and extending across the combustion chamber, studs projecting from said water legs into the path of the hot gases, walls as 40 and 42 in close proximity to said water legs and with the studs between said legs and said walls whereby the products of combustion surround said studs, and a super-heater located at the upper part of the combustion chamber connected with said water chamber, substantially as described.

6. In a steam boiler of the water leg type, a water chamber, a water leg projecting downwardly therefrom, :1 number of belts or studs projecting into or through said water leg and also projecting into the path of the hot gases, in combination with a wall projecting alongside of said water leg, whereby the products 01. combustion, in

passing between said leg and said wall, are caused to thoroughly heat said studs, substantially as described.

7. In a steam boiler of the water leg type, a water chamber, water legs projecting downwardly therefrom, a number of bolts or studs projecting into or through said water legs and also projecting into the path of the hot gases, in combination with walls projecting alongside of said water legs and having the projecting parts of: said studs between said water legs and said walls and one of said walls being interposed between said water legs, whereby the products of combustion are forced to pass around said water legs and are kept in close contact with the studs between said legs and the walls, substantially as described.

8. In a steam boiler of the water leg type, a water chamber, water legs projecting downwardly therefrom, a number of bolts or studs projecting into or through said water legs and also projecting into the path of the hot gases, in combination with walls projecting alongside of said water legs and having the projecting parts of said studs between said water legs and said walls and one of said walls being interposed between said water legs, whereby the products of combustion are forced to pass around said water legs and are kept in close contact with the ,lugs between said studs and the walls, and a superheater located under said water chamber and between the water legs, substantially as described.

9. In a steam boiler of the water leg type, a water chamber, a plurality of water legs extending across the furnace and projecting downwardly from said water chamber, 11 series of studs projecting into said water legs and also outside thereof into the path of the hot gases and means as the walls 40 and 42 also extending across the furnace in close proximity to said water legs but with said studs located between said legs and said walls, substantially as described.

10. In a steam boilerof the water leg type, a water chamber, a plurality of water legs extending across the furnace and projecting downwardly from said chamber, a series of studs projecting from said water legs into the path of the hot gases, means as the walls 40 and 42 also extending across the furnace in close proximity to said water legs but with said studs located between said legs and said walls, and a super-heater located under said water chamber and between said water legs, whereby the products of combustion are forced to pass between each leg and its wall and around said super-heater, substantially as described.

11. In a steam boiler of the water leg type, a water chamber, a plurality of water legs extending across the furnace and projecting downwardly from said water chamber, a series of studs projecting into said water legs and also outside thereof into the path of the hot gases and means as the walls 40 and 42 also extending across the furnace in close proximity to said water legs but with said studs located between said legs and said walls, and circulating pipes passing down and connecting the water legs with the water-chamber, substantially as described.

12. In a steam boiler of the Water leg type, a horizontal water chamber, a plurality of water legs projecting downwardly therefrom, one of them being over the furnace at near the end of the combustion chamber, and the other legs projectingdownwardly between the first mentioned legs and the stack, the said legs extending substantially across the boiler and having studs projecting therefrom, in combination with walls, as 40 and 42 extending across the furnace, the studs projecting from said legs being between the legs and said walls, whereby the products of combustion are forced to pass upwardly for the whole length of the legs between the legs and said walls, substantially as described.

13. In a steam boiler of the water leg type, a horizontal water chamber, a plurality of water legs projecting downwardly therefrom, one of them being over the furnace at near the end of the combustion chamber, and the other legs projecting downwardly between the first mentioned legs and the stack, the said legs extending substantially across the boiler and having studs projecting therefrom, in-combination with walls, as 40 and 42 extending across the furnace, the studs projecting from said legs being between the legs and said walls, whereby the products of combustion are forced to pass upwardly for the whole length of the legs between the legs and said walls, and a superheater located between the said Water legs and over one of said transverse walls, substantially as described.

Signed by me this 4th-day of June 1906.

- HENRY STANTON. Witnesses JOHN 0. CHAPPELL, W. 0. CHAPPELL.

Images