Improvements connected with Steam Generators and Feed-water Heaters.
Year: 1889

page_text: Date of Application, 27th July, 1889
*Complete Specification Left, 26th Apr., 1890-Accepted. 31st May, 1890
PROVISIONAL SPECIFICATION.
Improvements connected with Steam Generators and Feed-water
Heaters.
I HENRY GOURLAY of Grove Villa, Filey, Yorks, Gentleman, do hereby declare the
nature of this invention to be as follows
This invention has for its object the utilization of the waste heat from steam boilers,
for the purpose of not only heating the feed water for the high pressure water, but
also to generate a supplementary supply of steam for useful purpo-es
Food water heaters for the high pressure boiler of a steam engine have constantly
been employed situated in the base of the chimney or other convenient position,
where the gases of combustion pass from the boiler tubes. These feed water heaters
have however been open to the objection that should steam be formed in them, it
could not be utilized, but was only a source of inconvenience and danger, and
interferred with the action of the feed pumps
According to my invention, 1 employ, as a feed water heater for the HPB a LPB
of large heating surface, suitably situated in the course of the waste gases, and the
steam raised therein 1 employ to supplement the steam from the HP B, when it
reaches the L P cylinder of a compound engine, or one of the LP cylinders of a
multiple expansion engine, or I may employ this steam for other purposes such as
supplying a steun jacket
Water may be supplied to the H P. B. from the L P B, and fed to the L P B from
the hot well or other supply by a set or sets of ordinary pumps.
By thus supplementing the steam from the H. P. B, I may be enabled to reduce
the size of such boiler, and consequently the first cost theicof At the same time, the
gases of combustion are utilized to the utmost, and an economy in fuel is thereby
effected.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements connected with Steam Generators and Feed-water
Heaters.
1 HENRY GOURLAY of Grove Villa, Filey, Yorks., Gentleman, 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 utilization of the waste heat from steam boilers,
for the purpose of not only heating the feed boiler water for the high pressure
boiler, but also to generate a supplementary supply of steam for useful purposes.
I am aware that feed water heaters for the high pressure boiler of a steam engine
have constantly been employed, situated in the base of the chimney or other
convenient position, where the gases of combustion pass from the boiler tubes.--These
feed water heaters have however heen open to the objection, that should steam be
formed in them, it could not be utilized, but was only a source of inconvenience and
danger, and interfered with the action of the feed pumps.
I am also aware that in compound engines, exhaust steam from the high pressure
cylinder has been admitted into a low pressure boiler, which also supplies the feed
water for the H. P. B., and re-used in the low pressure cylinder or cylinders in
conjunction with steam separated generated in said L. P. B.
According to my invention, however, I employ as a feed water heater, for

page_text: the H. P. B., a L. P. B of large heating surface, suitably situated in the course of
the waste gases, and the steam raised therein I employ to supplement the steam
from the H. P. B., as it passes direct to the L. P. cylinder of a compound engine, or
one of the L. P. cylinders of a multiple expansion engine, or I may employ this
steam for other purposes, such as supplying a steam jacket.
In the accompanying drawing,
Fig 1 is a diagrammatic sectional ide elevation of a compound steam engine and
boilers,―and
Fig. 2 is a diagrammatic front view,
Jare high pressure boilers, and K is a low pressure boiler of large heating surface,
Situated in the uptake F from the furnace of the H. P. B.-The gases of combustion,
after heating the H. P. B., pass on and heat the L. P. B.
==
Water is supplied by the engine feed pump G through the pipe C to the L. P. B,
K, and from thence to the H. P. B.-J 19 supplied by the suction pipo D and
delivery of the auxiliary feed pump H.
Steam from the boiler J passes by the main steam pipe A to the casing of
the H. P. C. a, whence it exhausts by the exhaust pipe a¹ to the casing of the L. P.
C.; at the same time stoam separately generated in the boiler K, passes to the
cylinder by the steam pipe B.
By thus supplementing the steam from the H. P. B, 1 am enabled to reduce the
size of such boiler, and consequently the first cost thereof. At the same time, the
gases of combustion are utilized to the utmost, and an economy in fuel is thereby
effected.
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 :-
An arrangement of steam generator wherein there are two separate boilers, or two
sets of boilers, uzz., high pressure and low pressure boilers, the latter being placed in
the course of the waste heat from the former, and acting as a feed water heater to the
former, and at the same time providing separately generated steam supplementary to
the high pressure exhaust steam, in the manner and for the purpose specified.
Dated this 26th day of April 1890.
NEWTON & SON,
Agents for the Applicant.