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Патент USA US2089741

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Aug. 10,1931
J, A, GAMES
2,089,741
VALVE AS sEMBLlY
Filed July 27, 1936
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Inventor
1f (4- G‘arnes
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Atiomgys
'Patented Aug. 170, 1937
2,089,741
UNITED STATES PATENT OFFICE
2,089,741
VALVE ASSEMBLY
James A. Gaines, County Line, Okla.
Application July 27, 1936, Serial No. 92,863
5 Claims.
(Cl. 137-68)
This invention relates to new and useful im - pump at the gathering station produces a vacuum
provements in a special type of ?oat valve for on the entire system, and as long as all the tanks
have sufficient oil in them to prevent air entering
oil ?eld piping.
The principal object of the present invention the main line, the suction pump will produce a
5 is to provide a valve especially adapted for use vacuum and pull the oil from the tanks into the
in oil gathering systems. In these types of sys
gathering station. However, some of these tanks
empty quicker than others and allow air to
tems there are a number of tanks, some of vary
ing capacities, all connected up by piping to the enter the lines which breaks the vacuum and the
e?iciency of the suction pump is reduced. Some
gathering station which employs a suction pump.
10 Another important object of the invention is of these tanks are located as far as ?ve miles
to provide a ?oat valve for oil gathering systems from the gathering station, while others are
which will effectively serve to close off the branch closer.
The valve functions in the following manner:
pipes to the tanks as the tanks become empty,
Assuming the valve assembly in closed condi
so that air will not get into the pipe system.
15
Other important objects and advantages of the tion as a result of a previous pumping opera
invention will become apparent to the reader of tion, the status of the several elements of the
the following speci?cation.
assembly will be as follows:
In the drawing:
Valve I‘! will be closed and chamber I2 will
Figure 1 represents a perspective view of the be partially ?lled with air admitted in the pre
ceding operation. Valves 25 and III will be
20 valve structure and associated mechanism con
closed. Valve 9 may be open or closed. Gener
nected with a tank.
Figure 2 is a vertical sectional view through the ally valve 9 is left open until it again becomes
necessary to pump liquid from tank 5. With
?oat valve.
Referring to the drawing, wherein like num
valves Ill and I‘! closed, pipe 6 on the outlet side
of valve shell I5 will be under vacuum from the
‘25 erals designate like parts, it can be seen that
numeral 5 represents a tank which is connected distant pump station, and that portion of pipe
I by the branch pipe 6 to the main trunk line (not 6 between valve 9 and valve I‘! will remain under
vacuum regardless of whether valve 9 is open or
shown) to the gathering station. Numeral ‘I
generally refers to the valve structure which is closed.
To open valve I‘! in order that liquid may be
30 installed in the branch line 6 and around which
drawn from tank 5 through pipe 6 by the suc
'is the by-pass 8. In the branch pipe 6 on the
outlet side of the by-pass 8 is the valve 9, while in tion pumps connected thereto beyond valve 9,
the by-pass 8 is the valve III. The branch pipe valve 9 is closed and stop II opened. This will
6 adjacent the tank 5 is provided with a cut-off permit liquid to ?ow through 6 and I5 and enter
the ?oat chamber. Valve 25 is opened venting
35 II.
The ?oat valve structure consists of the small the trapped air from chamber I2 until the ap
tank I2 bolted as at I3 to the base plate I4 on the pearance of liquid at vent 24 indicates that cham
valve shell I5 to which the end portions of the ber I2 has been ?lled with liquid, whereupon
sections of the branch pipe 6 connect. The valve 25 will be closed. Filling of chamber I2
40 valve shell I5 has the seat I6 therein against with liquid will not alone cause ?oat 2I to rise
which the valve element I1 is seatable, the valve and open valve IT, for at this point a vacuum
element I7 having an elongated stem I8 extend
will still exist in pipe 6 between valve 9 and valve
ing through the open spider I9 in the shell I5.
I1 and generally this vacuum is too great to- be
The upper end of the stem I8 passes through the overcome by the buoyancy of ?oat 2I in the liquid
45 spider 20 in the upper portion of the tank I2 and in chamber I2. To break this vacuum and per
has the ?oat 2! secured to an intermediate por
mit ?oat 2| to rise and lift valve I'I, valve I9 is
now opened and liquid will flow from that part
tion thereof.
An upstanding pipe 22 is connected to the hori
of pipe 6 which is on the inlet side of valve shell
zontal pipe 23, one end of which has the discharge
I5, into the evacuated segment of pipe 6 between
50 nozzle 24 as well as the cut-off valve 25. The pipe valve 9 and valve I'I, thus reducing the vacuum
23 is connected to the vertical pipe 26 which has and balancing the static pressure on opposite
the valve 21 therein and which in turn connects sides of valve I1 and thereby permitting ?oat 2:
I to the branch pipe 6 on the tank 5 side of the to rise and open valve H. The in?ux of liquid
admitted to pipe 6 through pipe 8 and valve ID,
tank 1.
55
It should now be understood that the suction may also assist the opening of valve I‘! by ap
15
20
25
30
35
40
45
50
55
2
2,089,741
plying ?uid pressure to valve [1, the extent of
therein between its connection with said dis
this pressure being governed by the difference in
levels of the liquid in tank 5 and that in chamber
i 2. As soon as valve H is opened, valve In will be
closed and valve 9 opened and liquid will then
?ow from tank 5 through valves l5 and 9 to the
charge line and ?oat chamber respectively.
chamber, a ?oat in said chamber operatively con
nected to said valve, a vacuum cut-off valve in
distant suction pumps.
When the'level of liquid has fallen to such
a point in tank 5 that air enters pipe 6 with the
the conduit at the outlet side of the ?oat operated
valve, means connected to said conduit at the
inlet side of said ?oat operated valve for separat
liquid, the air, upon reaching the point of con
nection of pipe 26 into pipe 6, will be trapped
in pipe 26 and, valve 21 being opened in the
meantime, will ?ow into the upper portion of
chamber l2 displacing the liquid therein through
'15 valve ll into pipe 5 causing ?oat'2l to lower
thereby seating valve I‘! in seat It‘ and thus close
off the ?ow of liquid through pipe 6. Pipe 6 will
remain closed until a new operation is begun as
above described.
20
While the foregoing speci?cation sets forth
the invention in speci?c terms, it is to be under
stood that numerous changes in shape, size, and
materials may be resorted to without departing
25
hereinafter claimed.
from the spirit and scope of the invention as
7
Having described the invention, what is claimed
as new is:
1. In combination, a discharge line adapted to
45
50
55
60
ing air from liquid passing through said conduit 10
and for introducing the air into said ?oat cham
ber, a valved by-pass extending from the inlet
side of said conduit around said ?oat controlled
valve and into the outlet side of said conduit at.
a point between the vacuum cut-off valve and 15
said ?oat controlled valve, and an air vent in
said ?oat chamber.
4. In combination, a discharge line adapted to
be connected to an oil tank, a vacuum relief
valve in the line, a ?oat chamber communicating 20
with the line between the tank connection and
the relief valve, a second valve interposed in said
line and adapted to cut off ?uid ?ow through the
line and to simultaneously cut off communica
tion between the chamber and the portion of the 25
line between the second valve and said vacuum
relief valve, a ?oat operative in the chamber and
operatively connected to the second valve for
be connected to a tank, a. vacuum relief valve
actuating the latter, a vent pasageway extend
in the line, a ?oat chambercommunicating with
ing from the line at the tank connection side of 30.
the line between the tank connection and the
relief valve, a valve interposed in said line, a
?oat operative in the chamber and operatively
the ?oat chamber and communicating with the
atmosphere, valve means for controlling the pas
sage of ?uids through said passageway, a second
connected with the last-mentioned valve, a vent
passageway placing the ?oat chamber in com
munication with the ?rst passageway, and a valve
pipe extending from the line at the tank con
nection side of the ?oat chamber and being open
40
3. In combination, a suction conduit, a ?oat
operated valve mounted in said conduit, a ?oat
at its upper end, an air escape valve at the up
per end of the vent pipe, a pipe connecting the
upper portion of the chamber with the upper
portion of the vent pipe, and a by-pass in said
discharge line around said ?oat chamber, said
by-pass having a valve therein.
2. In combination, a discharge line adapted to
be connected to a tank, a manually operated
vacuum relief valve in the line,'a ?oat chamber
having communicating connection with the line
between the tank connection and the relief valve,
a ?oat controlled valve in said line for controlling
the flow passage in said line, a ?oat operativerin
the chamber and operatively connected Withl
the last-mentioned va1ve,'a vent pipe extending
from the line at the tank connection side of the
?oat chamber, a manually operated air escape
valve at the outer end of the vent pipe, a pipe
connecting the upper portion of the chamber
with the upper portion of the vent pipe inwardly
of said air escape valve and a by-pass in said
discharge line and around the ?oat chamber, said
by-pass having a manually operated valve there
in, and said vent pipe having a cut-off valve
35
by-pass having its ends communicating with the
line at opposite sides of the second valve.
5. In combination, a discharge line adapted to
be connected to an oil tank, a vacuum relief valve
in the line, a ?oat chamber communicating with 40
the line between the tank connection and the
relief valve, a second valve interposed in the
line adapted to cut off ?uid ?ow therethrough
and to simultaneously cut off communication be
tween said chamber and the portion of the line A5
between said valves, a ?oat operative in the
chamber and operatively connected with the
second valve for actuating the latter, means com
municating with the line between the second
valve and the tank connection for separating air I 50
from liquid passing through the conduit and for
introducing air into the ?oat chamber, valve
means for controlling the discharge of air from
the last-mentioned means and from the cham
ber, and a valved by-pass having one of its ends
communicating with the line between the sec
ond valve and the tank connection and its other
end communicating with the line between the
second valve and the relief valve.
JAMES A. GAINES.
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