An Apparatus for Separating Liquid or Solid Matter from Steam.
Year: 1897

page_text: An Apparatus for Separating Liquid or Solid Matter from Steam.
I, JOSEPII BUTTERWORTH, of 131, Station Road, Pendlebury, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
The apparatus consists of a cylindrical vessel of much larger sectional area
than the pipe conveying the steam to be drained, and is known as a steam dryer.
Into the upper part of this the steam is led in such a manner as to give it a
revolving motion, either by causing it to enter at a tangent to the circumference
of the vessel or by deflecting it in a similar direction by means of a rib or plate
placed at the entrance of the steam to the dryer.
There is no need for a continuous helix or screw as ordinarily used in some
steam dryers to confine the flow of steam in a helical direction as the inertia of
the steam causes it to continue in its revolving path after leaving the entrance or
deflecting plate, although it will at the same time lose its velocity as it drops to
the lower part of the dryer and in so doing deposit any water or solid matter in
suspension.
The steam may be taken from the dryer by means of a pipe running along the
centre of same, and going out either at the end of the cylindrical vessel or beat to
an elbow so as to come out at the side of same, and if necessary in line with the
inlet. In order to prevent the steam from licking up the water deposited on the
sides of the vessel and central pipe, longitudinal ribs are formed on their sides
inclined towards the direction of the steam flow, so as to form pockets into which
the water is driven by the rush of the steam and then flows into the lower part
of the vessel which forms a receiver for same. The latter may be covered by a
shield to prevent the rush of steam agitating the surface of the water or the
receiver may be made deep enough to take the water out of the flow of the steam.
In another form of steam dryer as hitherto made, a vertical baffle plate is fixed in
an enlarged chamber formed in the course of the steam pipe to be drained.
:
The steam conveyed by the pipe is forced to dip under the baffle plate, and at
the same time its velocity is reduced.
Much water is thus separated from the steam, but the water collected on the
baffle plate as the steam strikes it runs down and gets licked up again by the
steam.
To obviate this it is proposed to form shallow ribs on the face of the baffle
plate which are inclined towards the direction of flow of the steam and form
small gutters which dip from the centre of the plate to the sides, where they dis-
charge into a vertical gutter formed in each side of the dryer and thus carry
the water off to the receiver formed in the bottom of the enlarged chamber.
Dated this 18th day of October 1897.

page_text: An Apparatus for Separating Liquid or Solid Matter from Steam,
I, JOSEPH BUTTERWORTH, of 141, Station Road, Pendlebury, in the County of
Lancaster, 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: -
The apparatus consists of a cylindrical vessel of much larger sectional area
than the pipe conveying the steam to be drained, and is known as a steam dryer.
Into the upper part of this the steam is led in such a manner as to give it a
revolving motion, either by causing it to enter at a tangent to the circumference
of the vessel or by deflecting it in a similar direction by means of a rib or plate
placed at the entrance of the steam to the dryer.
There is no need for a continuous helix or screw as ordinarily used in some
steam dryers to confine the flow of steam in a helical direction, as the inertia of
the steam causes it to continue in its revolving path after leaving the entrance or
deflecting plate, although it will at the same time lose its velocity as it drops to
the lower part of the dryer and in so doing deposit any water or solid matter in
suspension.
The steam may be taken from the dryer by means of a pipe running along the
centre of same, and going out either at the end of the cylindrical vessel or bent to
an elbow so as to come out at the side of same, and if necessary in line with the
inlet. In order to prevent the steam from licking up the water deposited on the
sides of the vessel and central pipe, longitudinal ribs are formed on their sides
inclined towards the direction of the steam flow, so as to form pockets into which
the water is driven by the rush of the steam and tuen flows into the lower part
of the vessel, which forms a receiver for same. The latter may be covered by a
shield to prevent the rush of steam agitating the surface of the water, or the
receiver may be made deep enough to take the water out of the flow of the steam.
In another form of steam dryer as hitherto made, a vertical baffle plate is fixed in
an enlarged chamber formed in the course of the steam pipe to be drained.
The steam conveyed by the pipe is forced to dip under the baffle plate and at
the same time its velocity is reduced.
Much water is thus separated from the steam, but the water collected on the
baffle plate as the steam strikes it runs down and gets licked up again by the
eteam.
To obviate this, it is proposed to form shallow ribs on the face of the baffle
plate, which are inclined towards the direction of flow of the steam and form
small gutters which dip from the centre of the plate to the sides, where they dis-
charge into a vertical gutter formed in each side of the dryer and thus carry
the water off to the receiver formed in the bottom of the enlarged chamber.
In order that the invention may be more clearly understood reference is made
to the accompanying 2 sheets of drawings. The same letters designate the same
parts in each drawing. The steam is led into the upper part of the dryer at A,
Figure 1, and is deflected by the bent plate B so as to enter at a tangent to the
inner surface of the chamber C.
The inertia of the steam causes it to continue in a circular motion confined
by the inner surface of C, and at the same time it will take a downward or spiral
course as the only exit is in that direction, namely by the central tube D.
While the steam is flowing in the spiral path above described, the water in
it will be thrown outwards by centrifugal force against the inner surface of C,
where it will naturally collect in the pockets formed by the ribs E (shown more

page_text: distinctly at E in Figure 2, which is a plan of the lower part of chamber C) and
be conveyed by them to the lower part of the chamber C, which forms a reservoir R
drained by outlets F and G, the latter of which is intended for use as a mud tap
only, the water being led from F usually through a steam trap.
The reservoir R may be covered by a metal shield to prevent the rush of steam
agitating the surface of the water, or it may be made deep enough to take the
water out of the path of the steam.
Any water deposited on the central tube D may be collected in a small chan-
nel H drained by pipe I.
After being separated from the water the steam is led up the central tube D
and through the valve V to the exit J.
In another form of dryer shown at Figures 3 and 4 Sheet 2 a vertical baffle
plate B is fixed in an enlarged chamber C formed in the course of the steam
pipe to be drained. The steam enters at A, strikes B and is deflected downwards,
but the water deposited on B is apt to get licked up by the steam as it passes under
the lower edge.
To obviate this, shallow ribs E are formed on the face of B and act as small
gutters, which dip from the centre of B to the sides, where they discharge into
vertical gutters K and thus carry the water off to the receiver R formed in the
bottom of the enlarged chamber C, which may be drained at F and G and pro-
tected by a metal shield as previously described.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:-
1st. The construction of steam dryers as shown in Figures 1 and 2, wherein
the steam is led into the separating chamber C at a tangent, or deflected in a
similar direction, and afterwards allowed to pursue a spiral path by virtue of its
own inertia.
2nd. The formation of ribs shown at E inclined towards the direction of the
flow of steam, so as to collect the water separated from the steam, and conduct it
to the reservoir below.
3rd. The combination of the ribs E as described with the types of steam dryers
shown in Figures 1 and 2, and Figures 3 and 4.
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