US556698A - Boiler - Google Patents

Description

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J. E. SGHLIEPER. BOILEB..

No. 556,698. Patented Mar. 17,1896-lv 'I p I n Y ,.ZZWe/fan' gi/2&2'

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UNITED STATES .IOIIN E. SCI'ILIEPER, OF IITTSBURG,

PENNSYLVANIA, ASSIGNOR TO THE STIRLING COMPANY, OF CHICAGO, ILLINOIS.

BOILER.

SPECIFICATION forming part of Letters Patent No. 556,698, dated March 17, 1896.

Application filed April l, 1895. Renewed December 10, 1895. Serial No. 571,717. (No model.)

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Be it known that I, JOHN E. SCHLIEPER, a citizen of the United States, residing at Pittsburg, Pennsylvania, have invented a new and useful Improvement in Boilers, of which the following is a specification.

In the accompanying drawings, Figure lis a if'crtical sectional idew of an ordinary Stirling boiler provided with my improved means of introducing feed-Water; and Fig. 2 the same, showin g a modified form of boiler.

A is the mud-drum, which may be made either singly or of communicating members; I3 and B', elevated steam and water drums, and B2 an elevated water-drum, which in some cases may also be a steam and water drum; O, O', and C2, banks of tubes connecting the mud-drum with the elevated drums 5 D, a feeddruin; d, an inlet-pipe for introducing water into the feed-drum, and d pipes leading from the feed-drum to one of the elevated drums, preferably the rear one, for introducing water into the boiler proper or into general circulation.

The llirst an d most important feature of my invention consists in providing for the introduction of feed-water in the forward part of the boiler, immediately over the furnace, and thence introducing it into the general circulation. To this end I provide a suitable feeddrum, which I prefer to place in an elevated position in the forward part of the boiler, from which drum suitable pipes lead to the proper part or position for introducing water into the boiler proper. As shown, these pipes lead from the feed-drum to the rear elevated drum, and, although changes may be made in this respect, I prefer to arrange them in this way. The feed-drum is of course provided with a suit-able supply-pipe for introducing feedwater.

Although not always necessary, I prefer to use a feed-water heater for raising the temperature of the water before introducing it into the boiler; but, whether this be done or not, my arrangement of the feed-drum in an elevated position in the forward part of the boiler with the pipes leading therefrom enables thc water to be more or less heated before it finally enters into the general circulation. This heating of course causes the precipitation of sediment or scale matter, which may be removed from either the feed-drum or lower mud-drum by blowing od or otherwise.

Another4 part of my invention is shown in u the modified form of boiler illustrated in Fig. 2. In this modification there are three banks of tubes, and the mud-drum is formed of separate drums or compartments connected by an enlarged pipe. It will be understood, however, that this i'orm of mud-drum is not necessary, except in the particular construction shown in said figure, and even in such construction the different drums or compartments may be connected by a comparatively small pipe or by several small pipes or nipples instead of by the large pipe shown. Whatever be the generalfcrm of the boiler, suitable baffle-tiling should be arranged in such positions as to properly deflect and distribute the lluegases 5 butin this form, especially, I prefer to have suitable baffle-tiling extend down from the rear upper drum in the middle of the rear bank of tubes, to facilitate local circulation therein. In this construction I also prefer to have-three banks of tubes; but the middle bank may be omitted and the relative size of the banks or number of tubes in each bank changed, as desired.

The elevated steam and Water drums, the lower mud-drum, and the pipes and banks of tubes connecting the several drums perform their usual functions in this type of boiler, and therefore need no special or detailed description. It will be understood, however, that the elevated drums are not in all cases required to have both steam and water coinmunication, and hence that pipes connecting their water-spaces may be used or omitted, as desired.

As will be seen, the elevated feed-drum in the forward part of the boiler is applicable to an ordinary Stirling boiler, as Well as to modied forms thereof; but, inasmuch as such feed-drum may be used in other forms of boilers, it will be understood that I do not intend to limit myself to its use in the form shown or in any other particular construction, it being my intention to use it in any and all forms and positions to which it may be found applicable. The same remark will apply to the modified form of boiler consti- IOO tuting the other feature of my invention, and generally it will be understood that, except as pointed out in the claims, I do not intend to limit myself to special fea-tures or details of construction.

I claim- 1. In a water-tube boiler, the combination of a feed-drum in elevated position adjacent to the furnace, means for introducing` water into the feed-drum, and a pipe or pipes extending from the feeddrum to a drum in the rear part of the boiler whereby water may be introduced into general circulation, substantially as described.

2. In a water-tube boiler, the combination of elevated steam and water drums communicating with each other, a lower mud-drum formed of communicating drums or members, a bank of tubes connecting the rea-r elevated drum with the rear member of the muddrum, a bank of tubes connecting the front elevated drum with the front member of the mud-drum, and means for introducing feed- Water, substantially as described.

3. In a Water-tube boiler, the combination of elevated steam and water drums communicating with each other, a lower mud-drum formed of communicating drums or members, a bank of tubes connecting the rear elevated drum with the rear member of the muddrum, a bank'of tubes connecting the front elevated drum with the front member of the mud-drum, an elevated feed-drum in the forward part of the boiler, means for introducing water into the feed-drum, and pipes com municating between the feed-drum and the rear upper drum whereby Water may be introduced into the rear upper drum and into general circulation, substantiallT as described.

4. In a Water-tube boiler, the combination of elevated steam and Water drums communicating with each other, a lower mud-drum formed of communicating` drums or members. a bank of tubes connecting the rear elevated drum with the rear member of the muddrum, a bank of tubes connecting the front elevated drum with the front member of the mud-drum, a middle bank of tubes connecting the communicating pipes between the elevated drums and the rear and forward members of the mud-drinn, respectively, an elevated feed-drum in the forward part of the boiler, means for introducing water into the feed drum, and pipes communicating` between the feeddrum and the rear upper drum, whereby water may be introduced into the rear upper drum and into general circulation, substantially as described.

, JOHN E. SCIILIEPER.

W itn esses WM. M. TUBER, Jr., G. L. Ronenns.

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