Means or Apparatus for the Heating of Feed Water for Steam Boilers, the Elimination of Air, and the Collection of Grease from the Feed Water of Steam Boilers.
Year: 1894

page_text: Date of Application, 31st Jan., 1894
Complete Specification Left, 4th July, 1894-Accepted, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
Means or Apparatus for the Heating of Feed Water for Steam Boilers,
the Elimination of Air, and the Collection of Grease from the Feed
Water of Steam Boilers.
ADAM MILLER 50 Lime Street London Middlesex England Consulting
Engineer do hereby declare the nature of this invention to be as follows:-
This invention has for its object the heating of feed or supply water for steam
boilers, by steam immediately on its entering the boilers, the elimination of air, and
of the collection of grease or fatty matters from the feed water and preventing the
air or grease from mixing with the water in the boilers.
The feed or supply water is pumped or forced into steam boilers by the feed
pump or forcing apparatus in the ordinary way through a check or regulating
valve, which may be placed on any part of the outside of the boilers.
I connect with this check valve on the inside of the boilers, coils or tiers of pipes,
placed in the steam space which are carried along the sides and ends of the
boiler.
I place trays or troughs underneath those pipes, they may be open trays or
troughs of various lengths as may be required. I use them of different shapes or
sections, with perforations in the bottoms or fitted with wire gauze in the bottoms,
or with top covers of wire gauze, to collect the grease or fatty matter that may be
pumped in with the feed water. I likewise use closed troughs of various lengths
or sections these troughs are divided into several compartments longitudinally and
transversely, the partitions which divide off each compartment have perforations
in them or they may be fitted with gauze. The covers or upper parts have pockets
with perforations or fitted with wire gauze, I also place loose wire, in the open
trays, or, troughs, as well, as in each closed compartment, to collect the grease.
The feed water as it is pumped through the check valve on the boiler, into the
coils or tiers of pipes, which also contains steam. The feed water passes onward
throughout the coils of pipes, and finally drops by small tubes which are fixed into
the bottoms of the pipes into the troughs which are again fixed underneath the
coils of pipes. If the troughs are of the open kind, the feed water passes through
the wire gauze which may be fitted, and, or through the perforated bottoms into
and amongst the water in the boiler, leaving the grease or fatty matter on the wire
gauze.
If the feed water drops into the closed troughs, which are divided into com-
partments, the feed water must pass through all the horizontal and perpendicular
divisions of the troughs, which contain steam. The air which is pumped in with
the water escapes amongst the steam.
Dated this 31st day of January 1894

page_text: COMPLETE SPECIFICATION.
Means or Apparatus for the Heating of Feed Water for Steam Boilers,
the Elimination of Air, and the Collection of Grease from the Feed
Water of Steam Boilers.
I, ADAM MILLER, 50 Lime Street London, Middlesex, England, Consulting
Engineer do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention has for its object the heating of feed or supply water for steam
boilers, by steam, immediately on its entering the boilers, the elimination of air,
and, the collection of grease or fatty matters from the feed water and preventing
the air or grease from mixing with the water in the boilers.
The feed or supply water is pumped, or forced, into the boiler, by the feed pump,
or forcing apparatus, in the ordinary way, through a check or regulating valve,
which may be placed on any part of the outside of the boiler. I connect with this
check or regulating. valve, a series of coils or tiers of pipes, placed in the steam
space of the boiler, and which are carried along the sides and ends of the boiler
horizontally or perpendicularly and fitted with steam inlets.
Underneath these pipes I place trays or troughs, into which the heated feed
water drops. These trays or troughs may be made open, or closed, and of various
lengths shapes or sections as may be required.
The tops and bottoms of the open trays or troughs, may be made of perforated
plates, or, of a series of plates made with interstices between them, or, of wire
gauze, so that all grease, oil, or fatty matter contained in the feed water may be
collected or trapped, and, that the heated feed water may be delivered in the form
of spray into the water in the boiler..
The closed trays or troughs are made in various lengths and sections, and, are
divided by partitions, placed longitudinally and transversely, into any number of
compartments. The partitions and bottom, are either made of perforated plates,
or of a series of plates with interstices as louvres between them, or, of wire
gauze.
Loose wire of any diameter or thickness is also placed in the various compart-
ments, or shelves, of the trays or troughs.
The heated feed water as it passes through the partitions and shelves of the
compartments gets further heated and is discharged through the bottom in the form
of spray into the water in the boiler; leaving all grease, oil, or fatty matter in the
troughs.
All parts of the trays or troughs, open or closed, are made removable for
cleaning or other purposes.
The air which is pumped in by the feed pump, along with the feed water, into
the coils of pipes, escapes immediately, when the feed water mixes with steam, and
is in this way prevented from getting in amongst the water in the boiler by its
escaping into the steam and therefore eliminated.
In order to allow of this Specification being more easily understood reference
will now be made to the accompanying drawings.
Figure 1 shews plan of feed heating coils arranged horizontally in a marine
boiler.
Figure 2 shews plan of one feed heating coil as may be arranged in coils
perpendicularly in a marine. boiler.
Figure 3 shews end view of a marine boiler with feed heating coils and troughs
in position arranged horizontally with steam inlets.
Figure 4 shews a side view of a marine boiler with feed heating coils and troughs
in position, arranged horizontally.

page_text: Figure 5 shews a longitudinal section of a closed trough.
Figure 6 shews a transverse section of a closed trough.
Figure 7 shews in elevation a feed heating coil or pipe and longitudinal section
of trough in position.
Figure 8 shews a transverse section of feed heating coil or pipe, and trough in
position.
Figure 9 shews in elevation a feed heating coil or pipe fitted inside longitudinal
section of trough.
Figure 10 shews transverse section of feed heating coil fitted inside trough,
with inlets for steam.
A. Check or regulating valve on the outside of the boiler.
B. Feed heating coils or pipes.
C. Steam inlet tubes to the feed heating coils, or pipes.
D. Drain tubes, fixed either on the under, or upper side, of the feed heating
coils, or pipes.
E. Trays, or troughs. The arrows shew the course the feed water takes.
H. Transverse partitions in troughs made either of perforated plates or of a
series of plates with louvre interstices between them or of wire gauze.
J. The inlets for feed water from drain tubes D through perforated plates or a
series of plates with interstices between them or wire gauze and also the outlets in
the bottom of the trough discharging the feed water as a spray into the water in
the boiler.
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 :-
:-
1. An improved means of heating feed water for steam boilers, by steam, after
it enters the boiler, by means of coils or tiers of pipes arranged horizontally or
perpendicularly, in the steam space of the boiler, and trays or troughs connected
therewith into which the heated feed water falls on being discharged from the coils
or tiers of pipes and is further heated by being made to pass backwards and
forwards through all the compartments, shelves, and partitions of the trays or
troughs and is finally discharged from the trays or troughs in the form of spray
on to the surface of the water in the boiler.
2. An improved means of heating and filtering the feed water for steam boilers
and also eliminating air from the feed water by means of trays or troughs through
which the heated feed water passes after being discharged through drain tubes
from the coils or tiers of pipes. The trays or troughs constructed with inlets,
shelves, partitions, and outlets made of perforated plates, or of a series of plates,
with louvre interstices between them, or of wire gauze, by this means trapping or
collecting any grease, oil, fatty, or other matters, contained in the feed water,
and further heating the feed water by retaining it in its passage through the trays
or troughs, also permitting the air to escape into the steam before the water is
discharged from the outlets of the trays or troughs in the form of spray on to the
surface of the water in the boiler.
Dated this Fourth day of July 1894.
ADAM MILLER.