Improvements in Gas Washing Apparatus.
Year: 1892

page_text: Date of Application, 28th Mar., 1892
Complete Specification Left, 2nd Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION,
Improvements in Gas Washing Apparatus.
I, CHARLES HUNT, of City Gas Works, Windsor Street, Birmingham, in the
County of Warwick, Engineer, do hereby declare the nature of this invention to be
as follows:-
-:
My invention relates to apparatus for washing gas by causing it to pass in
subdivided streams through water, in which the ammoniacal, tarry and other
impurities are retained. For this purpose, I provide a vessel divided by horizontal
partitions into a number of compartiments, in each of which water is maintained at
a constant level. Through each partition several tubes arranged in rows pass
upwards to a height a little above the water level in the compartment above; and
over each row of these tubes, which are open at the top, is. placed a hood in the
form of an inverted trough having its edges perforated with numerous small holes,
which, when the trough is in position, are immersed in the water. The uppermost
compartment being, supplied with water, and each of the compartments below being
supplied by overflow from that above it, gas, admitted into a space below the
lowest partition passes up the tubes into the hoods, and passing through the small
holes, bubbles up through the water into the space above the water in the lowest
compartment, thence it passes through the.next set of tubes and hoods, and so on,
from compartment to compartment, until it issues from the uppermost compartment
in a washed condition, the liquid overflow from the lowest compartment containing
the ammoniacal and other impurities.
Deted this 28th day of March 1809
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Gas Washing Apparatus.
I, CHARLES HUNT, of City Gas Works, Windsor Street, Birmingham, in the
County of Warwick, 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:-
My invention relates to apparatus for washing gas by causing it to pass in
subdivided streams through water, in which the ammoniacal, tarry and other
impurities are retained. For this purpose, I provide a vessel divided by horizontal
partitions into a number of compartments, in each of which water is maintained at
a constant level. Through each partition several tubes arranged in rows pass
upwards to a-height a little above the water level in the compartiment above; and
over each row of these tubes, which are open at the top, is placed a hood in the
form of an inverted trough having its edges perforated with numerous small holes,
which, when the trough is in position, are immersed in the water.
The uppermost
compartment being supplied with water and each of the compartments below being
supplied by overflow from that above it, gas, admitted into a space below the lowest
partition, passes up the tubes into the hoods and, passing through the small holes,
bubbles up through the water into the space above the water in the lowest com-
partment, thence it passes through the next set of tubes and hoods, and so on from
compartment to compartment until it issues from the uppermost compartment in a
washed condition, the liquid overflow from the lowest compartment containing the
ammoniacal and other impurities.

page_text: Fig. 1 of the accompanying drawings is a vertical section of gas washing
apparatus according to my invention.
Fig. 2 is a section to an enlarged scale of one of the tubes with hood and
Fig: 3 is a part side view of one of the hoods.
A is the vessel divided by horizontal partitions B into numerous compartments.
Through each of the partitions B pass a number of parallel rows of tubes open at
both ends, secured tightly in the partition by nuts, as shewn, or by expanding them
in the manner of boiler plates or otherwise. Over each, row of tubes is placed a
hood D like an inverted U trough having the lower parts of its limbs perforated
with numerous holes.
Water is supplied at E to the uppermost compartment whence on attaining such
a level as to submerge the perforated parts of the hood it overflows by a branch F
to the next compartment below. By branches like F, which are not shewn, all the
compartments are respectively connected to the compartments immediately below
them, so that, while water is supplied at E and all the compartments are charged
to like level, the overflow from the lowest compartment issuing at G, gas enters the
vessel at H below the lowest compartment, passes up through the first tier of
tubes C, issues through the perforations of the lowest set of hoods D and bubbles
in a subdivided condition through the water in the lowest compartment, and thus it
passes from compartment to compartment until it finally issues at K from the
uppermost compartment. The gas is thus washed, leaving most of its ammoniacal
and tarry impurities in the water which issues at Cr.
The number of compartments into which the vessel is divided, the number of
tubes in each row, and the number of parallel rows of tubes may obviously be
varied to suit the volume and condition of the gas that has to be dealt with.
Also, instead of perforating the lower parts of the hoods, their edges may be
serrated.
:
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I would have it understood
that I make no general claim to washing gas by causing it to bubble repeatedly
through water, nor to apparatus generally by which such washing is effected, but
what I claim is :—
A gas washing apparatus consisting of a vessel divided by horizontal partitions
into numerous compartments, and rows of open tubes passing through each partition
and covered each row by a hood like an inverted U trough having its lower limbs
perforated or serrated, with suitable connections for supply of water to the upper-
most compartment, its overflow from compartment to compartment, and its issue
from the lowest, and an inlet below and an outlet above for gas, all arranged and
operating, substantially as described.
Dated this 30th day of November 1892.
ABEL & IMRAY,
Agents for the Applicant.