The Heating of Feed or Supply Water for Steam Boilers.
Year: 1893

page_text: Date of Application, 25th Apr., 1893
Complete Specification Left, 26th June, 1893-Accepted, 29th July, 1893
PROVISIONAL SPECIFICATION.
The Heating of Feed or Supply Water for Steam Boilers.
ADAM MILLER, Engineer, of 11, Queen Victoria Street, London, in the
County of Middlesex, do hereby declare the nature of this invention to be as
follows:-
My invention has for its object, the heating of the feed or supply water for steam
boilers, before it enters the main or principal boilers, as it is discharged from the
feed pumps or other feeding or forcing apparatus, which may be used to feed, force
or supply water into the boilers; and to deliver the feed or supply water into the
main or principal boilers, at a temperature near to, or actually at the boiling point
of the water, according to the pressure of the steam in the main or principal
boilers.
Thus relieving the steam boilers of one, or the principal function, so that the
main or principal boilers are only required to generate steam.
One kind of apparatus I use to accomplish the heating of the feed or supply
water, is a vertical annular boiler, fitted with a furnace, to burn wood, coal, oils or
gas, in the usual way, and having a series of small tubes crossing each other, fixed
into the fire box of this boiler.
The feed or supply water is forced through a check valve on this boiler, into the
annulus or space between the outer shell and the fire box, it fills the inside as well
as the small tubes, which are fitted in the fire box.
The flame from the coal, wood, oils or gas fire, impinges on the small tubes, and
on the sides and roof of the fire box, and so heats the water, which escapes through
a non-return valve into the main or principal boiler.
Another apparatus I use to heat the feed or supply water, before it enters the
main or principal boilers, is a series of serpentine coils of tubes, fixed into a case
lined with fire-bricks; a furnace or fire is fitted up in the bottom part of the case,
to burn coal, wood, oils, or gas. The feed or supply water for the steam boilers, is
forced direct into this series of serpentine coils of piping, and through a check
valve, fitted to the several serpentine coils.
The flame from the furnace of coal, wood, oil, or gas, impinges on the serpentine
coils of piping, and as the water gets heated, it escapes through a non-return valve,
to which the ends of the coils are fitted, and so passes into the main or principal
boilers.
I also make use of various coils of piping, fitted into a case similar to that used
for the serpentine coils; the volutes or coils filling the whole of the centre of the
fire-brick lined case.
The feed or supply water is forced through a check valve, with which the volutes
or coils of pipes are connected.
The flame from the coal, wood, oil, or gas furnace, which is fitted at the bottom
of the case, heats the coils filled with the feed or supply water, and, as the
temperature rises, the feed or supply water escapes by a non-return valve, into
which the coils are fitted at their upper ends, and so passes into the main or
principal steam boilers.
Dated 25th day of Anril 1893

page_text: DD,
CTUSS ՄԱԱՆԻ
Hanging tubes may be used, or the boiler or vessel used without tubes.
Fig. 2. represents an elevation of a series of tubes or pipes "E," of a serpentine
form, placed above each other, and fitted up into an iron case, having a furnace or
fire place fitted into the bottom or lower part of the case.
Fig. 3. represents an elevation of a series of coils or volutes of tubes or pipes H,
fitted up into an iron case, having a furnace or fire place fitted in the bottom or
lower part of the case.
Fig. 4. represents a sectional plan of Fig. 1.
Fig. 5. represents a sectional plan of Fig. 2.
Fig. 6. represents a sectional plan of Fig. 3.
Fig. 1. the feed or supply water for steam boilers, is forced in the usual way, by
the feed pump or other apparatus, through pipes, to the check or entrance
valve "A," and as the feed or supply water accumulates in the boiler, it escapes
by the valve "B," into the main boilers.
The furnace or fire place may be fitted to burn coal, wood, hydrocarbon oil or
other oils or gas, as may be required.
The heat or flame from the furnace or fire in the boiler impinges on the roof and
sides of the fire box, and, if fitted with cross tubes as shewn, or hanging tubes, the
flame impinges on the tubes and accelerates the raising of the temperature of the
feed or supply water before it escapes into the main boilers.
Fig. 2. the feed or supply water for steam boilers is forced in the usual way by
the feed pump or other apparatus, through the check or entrance valve "D," into
the serpentine coils of tubes or pipes "E," it passes onward through the coils, until
it escapes by the valve "F," into the main boilers. The furnace or fire place may
be fitted to burn coal, wood, hydrocarbon oil or other oils, or gas, as may be
required.
The inside of the case which contains the coils, is lined with fire brick.
The heat or flame from the furnace or fire impinges on the tubes or pipes "E,"
and raises the temperature of the feed or supply water in the coils, before it escapes
into the main boilers.
Fig. 3. the feed or supply water for steam boilers is forced in the usual way by
the feed pump or other apparatus, through the check or entrance valve "G," into
the coils or volutes of tubes or pipes "H," it passes onward through the coils or
volutes until it escapes by the valve "K," into the main boilers.

page_text: The furnace or fire place is fitted to burn coal, wood, hydrocarbon oil or other
oils, or gas, as may be required.
The inside of the case is lined with fire brick.
The heat or flame from the furnace or fire impinges on the coils or volutes of
tubes or pipes "H," and raises the temperature of the feed or supply water in the
coils or volutes, until it escapes into the main boilers.
Having now particularly described and ascertained the nature of my said inven
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. The arrangement whereby the feed or supply water for steam boilers is
pumped or forced into a boiler or suitable vessel fitted with horizontal tubes, or
hanging tubes, or without tubes, in order that it may have more heat imparted to
it by the boiler, or by the boiler and the tubes fitted therein, before it enters the
main boilers.
2nd. The heating of the feed or supply water for steam boilers, in a boiler or
suitable vessel fitted with horizontal tubes, or hanging tubes, or without tubes,
before it enters the main boilers, by a furnace or fire of coal, wood, hydrocarbon
oil, or other oils, or gas, thereby raising the temperature of the feed or supply
water to the required height.
3rd. The arrangement whereby the feed or supply water for steam boilers, is
pumped or forced through a number of horizontal serpentine coils of tubes or pipes,
fitted into a case lined with fire brick or other fire resisting material, before it
enters the main boilers.
4th. The heating of the feed or supply water for steam boilers, in horizontal
serpentine coils of tubes or pipes, before it enters the main boilers, by a furnace or
fire of coal, wood, hydrocarbon oil, or other oils, or gas, thereby raising the
temperature of the feed or supply water, to the required height.
5th. The arrangement whereby the feed or supply water for steam boilers is
pumped or forced through coils or volutes of tubes or pipes, before it enters the
main boilers.
6th. The heating of the feed or supply water for steam boilers, in coils or volutes
of tubes or pipes, before it enters the main boilers, by a furnace or fire of coal,
wood, hydrocarbon oil, or other oils, or gas, thereby raising the temperature of the
feed or supply water to the required height.
Dated this 26th day of June 1893.
ADAM MILLER.