Improvements in Apparatus for the Manufacture of Water-gas.
Year: 1895

page_text: Date of Application, 22nd Jan., 1895-Accepted, 15th June 1895
UMLELE
DEMOTIVATION.
Improvements in Apparatus for the Manufacture of Water-gas.
I, ARTHUR GRAHAM GLASGOW, of Westminster Chambers, 9 Victoria Street,
in the City of Westminster, Engineer, do hereby declare the nature of my invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My invention relates to apparatus for manufacturing water gas, and has for its
object to provide a supply of steam for the generator or generators, for the blower
engine or engines, and for the other usual purpose with a minimum expenditure
of coal.
It has been attempted heretofore to utilize the heat of the waste gases issuing
from the generator or superheater, according to the type of the apparatus, to heat
a boiler from the steam supply of the generator is drawn, but as this source of heat
is irregular and uncontrollable, there being no relation between the supply and the
demand, this attempt has met with indifferent success in the manufacture of
uncarburetted water gas and has, I believe, been entirely abandoned in the case of
carburetted water gas. Generally speaking, my invention consists in combining
with the generator a boiler, the tubes of which form part of the conduit for escaping.
gases, and also a boiler heated by means independent of the escaping gases, uniting
the steam spaces of the boilers, and also, preferably, the water spaces, as hereinafter
described.
My invention will be best understood as described in connection with the
accompanying drawing in which it is illustrated, and which shows a water gas plant
in elevation and partly in section.
A is the water gas generator, a indicating the air blast, and M the steam supply
pipe; B is a fixing chamber, shown as superimposed on the generator; C is the
flue leading from chamber B, connecting with the gas flue D, and delivering, when
valve E is open, into the blast gas conduit G. G'; S is the inlet for the air necessary
to complete the combustion of the escaping blast gases provided the flue G be
practically closed as shown.
In case the space G be left freely open to the atmosphere, the indraught of air
to complete the combustion of the escaping blast gases is regulated by the damper P ;
E indicating the valve by which the course of the gases is governed. F is a boiler
set in the blast gases conduit G, G' the upper and lower parts of which connect
through the boiler flues ff &c.; H is the feed water supply pipe, I, a steam pipe
leading from the steam space of the boiler F; J a water pipe leading from the
water level of boiler F to a boiler K, with the steam space of which boiler K,
pipe I connects as shown. This boiler K is independently heated, as by a furnace L,
and preferably from it leads the steam supply pipe M. Obviously the steam
pressure in the two boilers, F and K, is always the same, as they are connected by
pipe 1, and the boiler heated by means independent of the gases escaping from the
gas generator can be so run as to obtain the full benefit of all the waste heat of the
gases passing through boiler F, while at the same time its own independent
furnace will and does, insure a heat supply sufficient at all times to maintain
the necessary generation or steam for use in the generator or generators, blower
engines and for the other usual purposes. While I have claimed the boiler F as
situated in the conduit for gases leading from a gas generator, it is, of course,
obvious that a superheater may be inserted between the generator and boiler, as
shown in the drawing at B, and the gases first passed through this. It is also of

page_text: course obvious that not only the blast gases, but also the commercial gases may be
passed through the boiler situated in the gas conduit, in a manner well known in
the art, as shown in the United States Patent to J. L. Stewart, No. 33,691, of
January 5th, 1886, and I do not wish to be considered as limiting myself to the
exact construction shown.
While in the foregoing description I have in general indicated the boiler heated
by the escaping blast gases as of tubular design, the invention is equally applicable
to any form of steam generator.
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. The combination with a water gas generator, of a boiler having fire tubes cr
flues constituting part of the conduit for the gases escaping from the generator
whereby the boiler will be heated by the hot gases which intermittently escape
from the generator, a boiler heated by means adapted to act constantly thereon and
independent of the intermittent and varying volume and heat of the gases drawn
off from the generator, a connection between the steam spaces of the two boilers,
and a pipe for conveying steam therefrom whereby the benefit of the heat of the
gases passing off from the generator will be obtained, and at the same time a
constant supply of steam will be insured by the boiler heated by the constantly
acting source of heat.
2. The combination with a water gas generator, of a boiler having fire tubes or
flues constituting part of the conduit for the gases escaping from the generator
whereby the boiler will be heated by the hot gases which intermittently escape
from the generator, a boiler heated by means adapted to act constantly thereou
and independent of the intermittent and varying volume and heat of the gases
drawn off from the generator, a connection between the steam spaces of the two
boilers, a pipe for conveying steam therefrom, and an air inlet leading into the gas
conduit below the boiler therein to permit the entrance of air. to complete the
combustion of the gases, all substantially as specified and so that the heat of the
gases passing off intermittently from the generator may be utilized, and at the same
time a constant supply of steam insured by the boiler heated by the constantly
acting source of heat.
3. The combination with a water gas generator of a boiler having fire tubes or
flues.constituting part of the conduit for the gases escaping from the generator, a
feed conduit leading to said boiler, a boiler heated by means adapted to act
constantly thereon and independent of the intermittent and varying volume and
heat of the gases drawn off from the generator, a water connection leading from
the water level of the flue boiler to the boiler heated by the constantly acting source
of heat, a connection between the steam spaces of the two boilers and a pipe for
conveying steam therefrom, all substantially as specified, and so that, the heat of
the gases passing off intermittently from the generator may be utilized and a
constant supply of steam insured at the same time by the boiler heated by, the
constantly acting source of heat.
Dated this 22nd day of January 1895.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.