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Патент USA US2029777

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Feb. 4, 1936.
w_ R, KINNAIRD - ‘
2,029,777
VALVE
Filed Dec. 25, 1933
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'
FIG. I
‘NVENTOR
WILLIAM ,R
"NNAIRD
~
BY
»
\
ATTORNEY
2,029,771
Patented 1-25. '4, 1936
UNITED STATES PATENT OFFICE
VALVE
William R. Kinnaird, Chicago,’ 111., assignor to
Universal Oil Products Company, Chicago, 111.,
a corporation of Delaware
'
Application December 12s, 1933, Serial No. 703.690
“.7 Claims. (01. 251-20)
This invention relates to improvements in the valve may ‘be employed to advantage in any
valves for the control of ?uids, speci?cally adapted
to controlling the ?ow of hot hydrocarbon oils‘
or other heated ?uids which have a tendency to
deposit coke or'otherwise hinder the operation
of ordinary valves.
.
‘
'
In the re?ning of hydrocarbon oils and par
ticularly in processes directed to their pyrolytic
conversion, it is often desirable to reduce the
10 pressure between different portions of the appa
ratus by employing'a' pressure reducing valve in
the conduit connecting said different portions of
the apparatus through which conduit a stream of
highly heated hydrocarbon oil is continuously‘
15 passed. It has been the practice to employ, for
'such service, a hand operated globeetype valve
service wherein it is desirable to cool and/or
lubricate the moveable seating member.
The present invention brie?y described com
prises a chamber for cooling ?uid and/or lu
bricant provided between the moveable seating
member of the valve and the valve bonnet. The
moveable seating member is slidably positioned
between the walls‘ of said chamber, the walls
serving as ‘a guide for said member.‘ Ports or 10
channels are provided about the outercircum
ference of the moveable seating member, permit
ting the passage of cooling ?uid and/or lubricant
from the chamber into the stream of ?uid pass
ing through the valve and means are provided
for introducing cooling ?uid and/or lubricant to
designed for high-temperature ‘and high pressure , said chamber and therefrom into the main stream
service, but difficulties have .been encountered, of ?uid passing through the valve.
The accompanying diagrammatic drawing il
"with such valves due to the tendency of the
20 heated oil to deposit coke within the valve, which lustrates one speci?c form of the apparatus of
greatly hinders operationsof the moveable valve the present invention, the features of which will
member.
In many cases it is desirable to par
tially cool ‘the stream of heated hydrocarbon oil
simultaneous with. the reduction in pressure
25 thereon and injection of a suitable cooling ?uid
such as cooler hydrocarbon'oil into the valve or .
be more clearly understood from the following
description of the drawing.
Figure 1 of the drawing illustrates a longitu
dinal section through the valve.
-'
. 25
Figure 2 is a cross-section taken through the ‘
into the stream of heated hydrocarbon; oil just ' upper portion of the main body of the valve and
the moveable seating member along a plane in
_
will, in many cases, ,serve to greatly minimize dicated by the line 2-2 in Figure l.
Referring in detail to the drawing, the main 30
30 or prevent obstruction of‘ the valve port so that
the ‘continuous ?ow of oil through the valves is body of the valveiis indicated at I, 2 being the
insured. ,Even in such. cases, however, there is inletand 3 the outlet. The valve bonnet is in
still atendency for coke to accumulate around dicated at 4 and is provided with a suitable stuffing
the valve bonnet between the valve stem ‘and box 5. The particular valve here illustrated has
35 moveable seating member and. the main body of a rising stem 6, threaded through the upper por 35
the valve. This may not materially obstruct the tions of the valve bonnet,‘ as indicated at ‘I,
passage of oil through the valve but greatly and provided at its upper end with a hand wheel
‘ v ahead of the valve (on the high ‘pressure side)v
hinders and in most-cases eventually prevents
changing the position of the moveable seating
.member. The position of the moveable seating
member must be changed from time to time dur
irig the operation of the process in order to main
tain a fairly constant outlet pressure from the
valve and in most cases occasional movement of
45 the moveable seating member will break away.
accumulations of coke between the moveable and
the stationary seating members and greatly pro-’
long the operation of the process before it is
8. The lower end of thevalve stem is rotatably .
attached to the moveable seating member 9, the
position of which, relative to the stationary seat 40
ing member Ill, having port I l, regulates the ?ow
of ?uid through the valve.
'
The‘upper portion of the main body of the
valve forms a chamber or reservoir 12 for suit
able cooling ?uid and/or lubricant which may be
introduced thereto through a suitable opening,
such as 13, provided in this portion of the valve.
The upper portion of the moveable seating mem
7 ' necessary to shut down, due to restriction or ac- - ber 9 ?ts snuglybetween the cylindrical walls of _ ’
50 .tual obstruction to the flow of oil through the
valve.
,
'
The present invention is directed to an im
proved valve which is particularly adapted to vthe
‘ type of service above described, although its use is
55 by no means limited to this class ‘of service since
chamber I 2 and may be raised and lowered within 50
the chamber by the rotation 'of hand wheel 8 and
valve stem 6.
,
'
As indicated in Figs. 1 and 2, slotted ports l4
are provided around the outer circumference ‘of
the upper portion of moveable seating member 9 55
2
2,020,777
to permit the ?ow of the cooling ?uid and/or lu
bricant from chamber l2 into the main body of
the valve and into the stream of heated oil or
other ?uid passing therethrough.
It is also speci?cally within the-scope of the
present invention to employ cooling ?uid around
valve stem 6 where it passes through the stu?ing
box 5 in order to keep the packing cool and lubri-.
cate the stem. A port "5 is provided in the valve
10 bonnet to permit the introduction of cooling ?uid
to this portion of the valve and, when desired,
stem 6 may be drilled, as indicated, at IT, I8 and
I9 to permit the transfer of cooling ?uid intro
duced to the stuffing box through port l6 through
15 the valve stem into reservoir l2. In such cases
comprising in combination, a valve body, a move- _
able member within said body for controlling the
?ow of ?uid through a ?uid passageway in said
body said moveable member separating said pas
sageway from the remaining hollow portion of
said body, means for conducting cooling ?uid to
said remaining hollow portion, said moveable
member being provided with means whereby said
cooling ?uid may pass around said moveable
member into said ?uid passageway.
10
3. A valve for controlling the ?ow of ?uids
comprising, in combination, a main valvebody
having inlet and outlet ports, a stationary seat- ,
ing member within the main valve body having
the introduction of cooling ?uid to reservoir i2
a port through which a main stream of ?uid ?ow
ing through the valve may pass, a moveable seat
through port l3 may, when desired, be eliminated.
Pressure somewhat greater than that main
port, means for adjusting the position of the move
tained on the outlet side of port ll may be em
'20 ployed in chamber I2 in order to insure the ?ow
of cooling ?uid and/or lubricant through ports
M, as previously described. This may be accom
plished, for example, by supplying the cooling
?uid and/or lubricant to chamber I2 from’ stor
25 age under pressure or by means of a suitable
pump, for example, although such means are not
shown in the drawing.
By providing a chamber for cooling ?uid and/or
lubricant above the movable seating member of
30 the valve and by providing for the ?ow of the
cooling ?uid and/or lubricant around the mov
able seating member, as provided by' the present
invention, the moveable'seating member is cooled
and/or lubricated and‘ any cooling ?uid passing
35 through the ports provided in the moveable seat
ing member into the stream of heated ?uid pass
ing through the valve serves to cool the heated
?uid in a zone immediately surrounding the move
able seating member in order to prevent the for
40 mation and accumulation of coke in this zone and
prevent sticking of the moveable seating member.
A suitable opening such as indicated, for ex
ample, at l5 may also be provided in the main
body of the valve for introducing suitable cooling
45 ?uid into the stream of heated ?uid passing
through the valve in order to partially cool the
same, prior to its passage through port II, and
assists in preventing the accumulation of coke
in themain body of the valve and particularly
between the moveable and stationary seating
. members.
It will be understood that the present inven
tion is not limited to the speci?c form or type
of valve illustrated and above described, since
55 the features of the present invention are equally
ing member for controlling said ?ow through said
able seating member relative to the stationary
seating member, said,valve body being provided
20
with a ?uid chamber located outside the path of
?ow of said main stream of ?uid passing through
the valve, within which chamber the moveable
seating member is mounted, means for conduct
ing a ?uid into said chamber and means for 25
conducting ?uid from said chamber into the main
stream of ?uid passing through the valve.
4. A valve for controlling the ?ow of ?uids
comprising, in combination, a main valve body
having inlet and outlet ports, a stationary seat 30
ing member within the main valve body having a
port through which a main stream of ?uid ?ow
ing through the valve may pass, a movable seat
ing member in adjustable relation to the sta
tionary seating member, means for adjusting the 35
position of the movable seating member relative
to the stationary seating member whereby to
control the ?ow of ?uid through the valve, said
valve body being provided with a ?uid chamber
located outside the path of ?ow of said main
stream of ?uid passing through the valve, with- ‘
in'which chamber the movable seating member
is mounted, means for conducting a ?uid into said
chamber and, means for passing ?uid from said
chamber around the movable seating member into
the main stream of ?uid passing through the
valve.
5. A/valve for controlling the ?ow of ?uids com-'
prising, in combination, a main valve body hav 60
ing inlet and outlet ports, a- stationary seating
member within the main body having a port
through which a main stream of ?uid ?owing
through the valve may pass, a movable seating
member in adjustable relationship to the sta 65
tionary seating member, means for adjusting the
well adapted to use in needle valves, gate valves,
other-types of globe valves and various modi?ca I position of the movable seating member rela
tions oi'such types as well as automatic pressure’ tive to the stationary seating member whereby
reducing valves of any form.
to control the ?ow of ?uid through the valve,
v60
I claim ‘as my invention: V
said valve body being provided witha ?uid cham-> 60
1. A valve for‘ controlling the ?ow of ?uids ber located outside the path of ?ow of said main
comprising in combination, a main valve body hav
stream of ?uid passing through the valve, within
ing inlet and outlet ports and a ?uid passageway which chamber the movable seating member is
mounted. means for conducting a ?uid into said
through said body connecting said ports, a move
able seating member for controlling the passage chamber. said movable seating member being pro 65
of ?uid through said passageway, a ?uid reser
voir within said main body adjacent the move
able seating member but outside the ?ow of ?uid
' through said passageway, means for conducting
cooling ?uid into said reservoir, said moveable
seating member being provided with means where
by said cooling ?uid may pass around the move
able seating member into said ?uid passageway.
75
2. A valve for controlling the ?ow of ?uids
vided with means comprising ports on its outer
periphery for permitting the passage of ?uid from
said chamber between the movable seating mem
ber and the walls of said chamber into the
main stream of ?uid passing through the valve. 70
6. A valve for controlling the flow of ?uids com
prising. in combination. a main valve body hav
ing inlet and outlet ports. a stationary seating
member within the main valve body having a port
through which a main stream of ?uid ?owing 7"
9,029,777
through the valve may pass, a movable seating
member'in adjustable relation to the stationary
seating member, means for adjusting the posi
tion of the movable seating member relative to the
stationary seating member whereby to control
the ?ow of ?uid through the valve, means for con
3
7. A valve for controlling the ?ow of ?uids com
prising, in combination, a main valve body hav
ing inlet and outlet ports, a stationary seating
member within the main valve body having a port
through which amain stream of ?uid ?owing
through the valve may pass, a movable seating -
member for controlling said ‘?ow through said
port, means ijor adjusting the position of the mov
‘?uid ?owing through the valve, prior to its pas
sage through the port in said stationary seating ; able seating member relative to the stationary ~
seating member, said valve body being provided 10
10 member, a ?uid chamber located ,outside the path with a ?uid chamber located outside the path of
of ?ow of said main stream of '?uid passing
through the valve, within which chamber the ?ow‘ of said main stream of ?uid passing through
movable seating member is mounted, means for the valve, within which chamber the movable '
seating member is mounted, means for conducting
conducting a ?uid into said chamber, said mov
' ducting a cooling ?uid into the‘ main stream of
15 able seating member being provided with means
comprising ports on its outer periphery whereby
?uid may pass from said chamber into the main
stream of ?uid passing through the valve.
a cooling ?uid into said chamber and means for 15
conducting cooling ?uid from said chamber
around said movable member.
WILLIAM R. KIN'NAIRD.
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