close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2131270

код для вставки
Sept. 27, 1938.
2,131,270
J. M. CHITTIM
STORAGE TANK
Filed Sept. 2, 1937
2 Sheets-Sheet l ‘
.42
56
‘.35
/5
I
l6
/5.
38
.
21mm
dames MCNHim
‘Sept. 27, 1938.
2,131,270
J. M. CHITTIM
STORAGE TA'NK
Filed Sept. 2, 1937
2 Sheets-Sheet 2
W
/6
42
I
Z'H'UCMM
dames M. Chi?im
2,131,210
Patented Sept. 27, 1938
UNITED} STATES PATENT OFFICE
2,131,210
7
s'ronnon TANK ,.
James M. 0111mm, sm ‘Antonio, Tex.
‘
Application September 2,1937, Serial No. 162,127
5 Claims. I (01. 62-1)
This invention relates to new and useful im
provements in storage tanks and in ‘particular
to the dispensing and regulating means connected
with said tanks.
'
'
In localities where ‘natural gas is not" available
from pipe lines, it is sometimes the practice to use
a private storageta'nk, usually located under
ground, .wherein lique?ed butane; propane, or
a mixture of similar gases may be stored.‘ A
10 service line leads from thetank to the point of
_
use, thus providing a gassupply similar to that
provided by the aforementioned natural gas pipe
lines.
For safety, these tanks are constructed
with a number of valves and pipes‘ which re
15 quire attention to insure their proper operation.
It is one of the objects of this invention to
provide improved dispensing means mounted on
such a tank as described, wherein all the neces
sary valves and pipes‘ are mounted on a single
20 plate or head, so designed that the whole assem
bly may be removed as a unit, to be serviced or
replaced.
'.
,
Another object of the invention is to provide
improved dispensing means for a storage tank
25 wherein a suitable housing is provided for the
dispensing means, said housing being easily re
movable without entailing any excavation.
A further object of the invention is to provide
improved dispensing means for a storage tank
30 wherein allowance is made for the surrounding
earth to shift or settle without causing a frac
35
The invention will be more readily understood
from a reading of the following speci?cation and
by reference to the accompanying drawings, in
which an-example of the invention is shown and
wherein:
‘
.
i
' Figure 1 is a side elevation of the device
mounted on a storage tank,
Figure 2 is an end view of the same with the
housing broken away to show the interior con
struction,
.
10
-
Figure 3 is an enlarged sectional view taken on
the line 3-3 of Figure 2,
~
Figure 4 is a sectional view taken on the line
14-4 cf-Figure 2,
Figure 5 is an enlarged sectional view taken on 15 .
the line 5-5 of Figure 2, and
Figure 6 is an enlarged sectional view taken on
the line 6-6 of Figure 4.
In ‘the drawings the numeral i0 designates an
elongated cylindrical storage tank of the usual I0,
type used for underground storage of liquids. It
is designed so as to rest on angular supports ii,
and has a circular opening in its upper surface
ll’ wherein a ?anged collar I2 is welded or otherwise suitably mounted. A cap plate l3, which 25
carrieselements to be described later, is ‘secured
to, the ?anged collar by bolts ll. , Supporting
ture of, or putting an excess strain on, the supply
bars- I! extend radially from the ?ange of- the‘
collar and have their inner ends secured thereto
by the bolts I‘. The lower end of ‘a cylindrical‘ 80
housing. I‘ surrounds the ?ange I!’ of the collar
l2 and- the cap plate l3, and has its upper end
pipe, and thereby occasioning a ?re hazard by
projecting slightly above the ground level when
allowing the gas to escape.
the tank is suitably situated in the ground. The
housing has angular retaining members i1 35
welded to its lower inner surface, which mem
A still further object of_ this invention is-to
provide improved dispensing means for a storage
tank wherein the various valves are mounted di
rectly in a head instead of on pipes which would
be liable to breaking and cracking, thus setting
up a hazardous condition.
Another, object of this invention is to provide
improved dispensing means for a storage tank,
having an inlet valve and a vapor valve, whereby
a hose leading from the bottom of a portable
45 fuel supply which is utilized to ?ll the under
ground tank, may be connected to the inlet valve,
bers' are located to rest upon the bars ii, to
which they’may be fastened by bolts l8, whereby
the housing It is suitably supported. As will
be seen in the drawings, the housing has vertical 40
‘walls and is of su?icient diameter as to allow
the ready removal of the cap plate I3'and its
supported elements. Also by removing the bolts
I! the housing itself may be removed if so de
sired. A cover I! is secured to the housing by a
and another hose connected from the vaporvalve
to the top of said supply tank,'thus setting up a
vapor balance between the two tanks, which
hinge 20 and fastened by a hasp 2|, allowing it
to be locked, whereby tampering may be guarded
against. The cover prevents foreign matter and
vention will be hereinatfer described, together
‘Also, notches Ii’ are provided in the wall of the
housing at the upper end thereof and permit
excess water from enteringthe housing and in- 50
50 7 enables a gravity feed to be used in ?lling the
storage tank and still allows no gas or vapor to... juring the contents thereof. As is ‘shown in Fig- »
lire '5, the housing has an open bottom 22, where
escape to the open air.
A construction designed to carry. out the in . by any water entering said housing may ?ow out.
55 with other features of the invention.
2
2,131,270
vapors which may accumulate within the housing
to escape therefrom.
The dispensing and regulating apparatus proper
consists of a plurality of inlet and check valves,
all mounted in the cap plate l3. This allows
them to be serviced as a unit, and to be easily re
moved and replaced if desired. _ The whole unit
consisting of the cap plate and valves may be
removed and replaced with a similar unit. In this
10 manner the gas supply is not cut off for any ap
preciable length of time.
.
The valves may be mounted in any convenient
fashion but it is preferable to mount them as
shown in the drawings. An inlet or ?ller valve
15 30 is mounted on the cap plate, being threaded
into a screw-threaded opening 3i in said plate.
A back ?ow check valve 32 is threaded into the
bottom portion of the opening 3|. The inlet
valve is so constructed that when the hose from
has a single loop or spiral therein. The tubing
being of’ copper, and having the loop, is of
sufficient ?exibility to allow considerable shifting
and settling of the tank and housing without a
fracture occurring.
Also a disturbance such as
an earthquake or nearby explosion would not
crack the supply line and allow gas to escape.
The copper line is connected to the regulator by
a coupling 43. By disconnecting this coupling
and the bolts ll the cap plate and valves are 10
easily removed.
Each of these valves is obtainable on the open
market and is subject to variation. Each valve
serves an individual and speci?c purpose as set
the supply truck (not shown) is placed thereon it
out hereinbefore. When the tank and housing is 15
suitably buried in the ground it is desirable to
place a mixture A of pea-gravel and sand at the
bottom of the housing, as is shown in Figure 1,
thereby preventing dirt from washing into the
housing and insuring the proper drainage of water 20
will open the valve.
therefrom.
Should the truck move dur
ing the ?lling operation, and break the hose, the
back ?ow check valve 32 would automatically
close when the gas started escaping and prevent
any further loss. When the tank is not being
?lled these two valves are inactive and serve as a
double seal against leakage. A slip tube gauge 33
for indicating the liquid level in the tank is
mounted in the plate l3 and has its tube 34
When these storage
tanks are re?lled, the ?lling is done by a gravity
feed. Usually in cold weather there is a pressure
differential between the service or supply tank
and the storage tank which is mounted in the
ground. For equalizing the pressure in the two
tanks a vapor valve 35 is provided in the cap plate
l3. A hose is connected from the bottom of the
supply tank to the inlet valve, thereby opening the
latter, and another hose is connected from the
vapor valve to the top of the supply tank. Any
pressure difference adjusts itself through the
second hose, thus allowing the liquid to ?ow from
the truck by gravity to the storage tank under
ground. An excess flow check valve 38 is mount
, extending down in the tank.
ed in the same opening as the vapor valve 35,
and extends into the tank. Should the second
hose which is connected to the valve 35 break,
any loss or escape of vapor would be prevented.
It is pointed out that both the vapor valve 35
a and inlet valve 30 are manually operated and that
,
What I claim and desire to secure by Letters
‘Patent is:
1. A storage and dispensing system for liqui
?ed gases, including, a storage tank having an 25
opening therein, a cover plate mounted in said
opening, an inlet valve mounted in the cover.
plate, a back ?ow check valve mounted on the’
cover plate below the inlet valve so that the two
valves communicate, a vapor valve mounted on 30
the cover plate, an excess ?ow check valve
mounted on the cover plate below the vapor
valve so that the two communicate, a safety valve
mounted on said plate, a gauge mounted on said
cover plate whereby the liquid level in the tank 85
may be ascertained, a supply line leading from
the cover plate, a pressure regulator mounted in
the supply line, and an excess ?ow check valve
mounted in the cover plate below the supply
line so that the line and valve communicate.
40
2. A storage and dispensing system for liqui
?ed gases including, a storage tank having an
opening therein, a cover plate mounted in said
opening, an inlet valve mounted in the cover
plate, a back ?ow check valve mounted on the 45
cover plate below the inlet valve so that the two
valves communicate, a vapor valve mounted on
the cover plate, an excess flow check valve
mounted on the cover plate below the vapor valve
so that the two communicate, a safety valve 50
mounted on said plate, a supply line leading from
the cover plate, a pressure regulator mounted
in the supply line, and an excess ?ow check valve
both are normally in a closed position. A safety
relief valve 36 is also provided to take care of any
sudden increases in pressure which would ex
ceed the safe operating pressure of the storage mounted in the cover plate below the supply line
so that the line and valve communicate.
tank.
A supply line 39 leads from the cap plate l3
3. A storage and dispensing system for liqui
to conduct the gas to its point of use. A valve 40 ?ed gases including a storage tank," a removable
similar to the valve 38 is mounted on the inlet end housing on said tank, a cover for said housing,
of this line whereby, should the supply line break, a service line extending into said housing, a
the valve 40 would automatically cut off the vapor support for the service line in said housing, con
passing to the line and thus prevent the loss of ' trols in said housing also carried by said support
gas. A manual shut-off valve 4| is located in and removable as a unit therewith, said housing
the supply line to allow the supply of gas to be ~ having its lower portion provided with drainage
shut o? completely. A regulator 42 of the dia
means to allow water to pass therefrom, said
phragm type is mounted in the supply line be
housing having its upper portion beneath said
tween the shut-off valve and the point of use and cover provided with gas discharge means.
_ 4. A storage dispensing system for liqui?ed gas
this regulator serves to keep the pressure con
including a storage tank, an upstanding collar on
stant at any predetermined range. If the pres
said tank, a support ‘on said collar, a housing
sure exceeds the range chosen as safe for operat
for said support of larger diameter than said
70 ing conditions, a low-pressure valve (not shown)
mounted within the diaphragm housing vents any - collar, a service line extending into said housing
excess pressure through an opening 42' until the and carried by said support, controls also carexcessive pressure has subsided. The supply line ried by said support, said service line and con
leaving the regulator and passing through the trols being removable as a unit with said sup
75 side wall of the housing is of copper tubing and port. said housing being provided with drainage
55
60
65
70
:
75
9,181,870
means to permit egress of water from its lower
portion and having its upper portion beneath
said cover provided with gas discharge means.
5. A storage and dispensing system for liqui
?ed gas including a storage tank, an upwardly
disposed portion extending from said tank, a
plate closing said upwardly disposed portion, a
service line extending above said plate, controls
for admitting and releasing the contents of the
10 tank, said service line and controls being sup
3 ,
ported at least in part by said plate, a housing
forming an enlarged extension of said upwardly
disposed portion, said housing being supported at
least in part by said upwardly disposed portion,
a cover for said housing, said'housing being pro
vided with drainage means to prevent escape of
water from its lower portion and additional
means for permitting escape of gas from its up- _
per portion below said cover plate.
JAMES M. cm.
10
Документ
Категория
Без категории
Просмотров
0
Размер файла
426 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа