Improved Water Heating Boiler Feeding Apparatus.
Year: 1891

page_text: Date of Application, 28th July, 1891
Complete Specification Left, 26th May, 1892-Accepted, 27th July, 1892
PROVISIONAL SPECIFICATION.
Improved Water Heating Boiler Feeding Apparatus.
I, DONALD BARNS MORISON of Hartlepool Engine Works, Hartlepool, in the
County of Durham, Engineer, do hereby declare the nature of this invention to be
as follows:
In water heating boiler feeding apparatus according to my invention the feed
water is heated by means of steam admitted into the feed water in a pipe or vessel
arranged between a feed pump and a feed check valve or valves. The steam may
be taken from any convenient source; for example from the boiler direct; or from
the main steam pipe, or from a steam jacket.
The apparatus can be variously arranged.
In one arrangement the feed water is forced along a supply pipe through a
vessel forming part of the feed pipe and within which there is arranged a perforated
nozzle placed centrally in the said vessel and so constructed that the feed water
may flow past and around it. In connexion with this nozzle there is arranged a
self acting non return valve past which the steam flows to the nozzle and thence
to the feed water, the arrangement being such that usually the non return valve
will work in sympathy with the feed check valve or valves on the boiler or boilers.
After being heated the water may pass into the boiler direct or through a
depositing chamber from which the impurities collected therein can be blown out
periodically.
Dated this 28th day of July 1891.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improved Water Heating Boiler Feeding Apparatus.
I, DONALD BARNS MORISON of Hartlepool Engine Works, Hartlepool, in the
County of Durham, 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 :-
In water heating boiler feeding apparatus according to my invention, the feed
water is heated by means of steam admitted into the feed water in a pipe or vessel
arranged between a feed pump and a feed check valve or valves. The steam may
be taken from any convenient source; for example from the boiler direct; or from
the main steam pipe, or from a steam jacket.
The apparatus can be variously arranged.
In one arrangement the feed water is forced along a supply pipe through a vessel
forming part of the feed pipe and within which there is arranged a perforated nozzle
placed centrally in the said vessel and so constructed that the feed water may flow
past and around it.
In connection with this nozzle there is arranged a self-acting
non return valve past which the steam flows to the nozzle and thence to the feed
water, the arrangement being such that usually the non return valve will work in
sympathy with the feed check valve or valves on the boiler or boilers. After being
heated, the water may pass into the boiler direct or through a depositing chamber
from which the impurities collected therein can be blown out periodically.
In the accompanying drawings
Fig. 1 is a vertical section partly in elevation, and Fig. 2 is an end view of water
heating boiler feeding apparatus constructed according to this invention.

page_text: Fig. 3 is a cross section on the line x Fig. 1.
1 is a vessel adapted to form part of the main feed pipe, and having an inlet branch 2
for connection with a feed pump, an outlet branch for connection with a pipe leading to
a boiler and provided with a feed check valve 3 and internal walls or divisions 4 through
which extends a perforated steam nozzle 5, the arrangement being such that feed
water entering by the branch 2 will be caused by the arrangement of the walls or
divisions 4 to circulate around the steam nozzle 5 as indicated by the arrows and
escape by the branch 3, and will become heated in its course by the steam escaping
through the perforations 5ª in the nozzle and becoming condensed therein. These
perforations may advantageously be in the form of slots arranged in a spiral
direction around the nozzle as shown and each made to incline in a horizontal
direction as shown more clearly in Fig. 3, so that the steam flowing therethrough
will move approximately in the same direction as the water flowing around the
nozzle and will in consequence be more effectively condensed and the apparatus
will work more quietly than would otherwise be the case. The steam is supplied
from a pipe 6 past a non-return valve 7 provided with a regulating spindle 8 and
hand wheel 9, and enters the perforated nozzle at the opposite end to that with
which the feed water first comes in contact. By this arrangement it will be seen
that the hottest steam will come in contact with the hottest water thereby reducing
shocks due to condensation of the steam, to a minimum. 10 is an air vessel secured
upon a bracket, 11.
Figs. 4 and 5 are respectively a longitudinal section and end elevation of a some-
what similar construction of the apparatus to that shown in Figs. 1 and 2 but in
which there is only one wall or division 4 in the vessel 1, the feed water entering
by the branch 2 and leaving by the branch 3, or for the reason herein before stated
it may advantageously be caused to enter by the branch 3 and leave by the
branch 2.
Figs. 6 and 7 are respectively transverse and longitudinal sections illustrating a
further modified construction according to which the vessel 1 is of globular form
and is provided with a lip or shield 12 arranged above the steam nozzle 5 which is
provided with inclined slots 5" as in the other constructions hereinbefore described,
the arrangement being such that water passing the vessel will have imparted to it
a rotary motion and will be heated by the steam issuing through the perforated
nozzle and becoming condensed therein.
The steam nozzle 5 may in each arrangement be provided with an internal conical
spindle 13 arranged as shown with the object of causing steam to flow equally
through all the slots 5º.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. Water heating boiler feeding apparatus in which feed water is heated by
means of steam admitted into it in a pipe or vessel arranged between a feed pump
and a feed check valve or valves and provided with a perforated steam nozzle, the
said pipe or vessel and perforated steam nozzle being so constructed and arranged
that the feed water will be caused to flow past and around the said nozzle substan-
tially in the manner described and shown.
2. My improved water heating boiler feeding apparatus constructed substantially
as herein before described with reference respectively to and shown in Figs. 1, 2
and 3; in Figs. 4 and 5 ; and in Figs. 6 and 7; of the drawings annexed.
Dated this 25th day of May 1892.
Dated this zovu way of May 1994.
D. B. MORISON.
W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C., Applicant's Agent.