U.S. patent application number 14/185995 was filed with the patent office on 2015-04-30 for modular fluid storage tank.
The applicant listed for this patent is Jerry W. Noles, JR., Dudley J. Perio, JR.. Invention is credited to Jerry W. Noles, JR., Dudley J. Perio, JR..
Application Number | 20150114958 14/185995 |
Document ID | / |
Family ID | 52994245 |
Filed Date | 2015-04-30 |
United States Patent
Application |
20150114958 |
Kind Code |
A1 |
Noles, JR.; Jerry W. ; et
al. |
April 30, 2015 |
Modular Fluid Storage Tank
Abstract
A modular fluid storage tank is formed by a plurality of curved
support footings, a tank bottom circular sheet and a plurality of
curved wall panel sections. According to a first embodiment, each
footing includes a channel extending on its top surface. The
footings are positioned in a circular pattern and the tank bottom
sheet is positioned to extend over the channel. The wall panel
sections have a bottom portion configured to fit within the footing
channels. Suitable tie down clamps are provided to secure the wall
panel sections to the footings. Adjacent sides of the wall panel
sections are secured to each other to complete the assembly.
According to a second embodiment the footings may include a single
rail and the wall panel sections are placed inwardly of the rail.
Fluid pressure within the tank will keep a bottom portion of the
wall panels in contact with the rail.
Inventors: |
Noles, JR.; Jerry W.;
(Blanchard, OK) ; Perio, JR.; Dudley J.; (Austin,
TX) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Noles, JR.; Jerry W.
Perio, JR.; Dudley J. |
Blanchard
Austin |
OK
TX |
US
US |
|
|
Family ID: |
52994245 |
Appl. No.: |
14/185995 |
Filed: |
February 21, 2014 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
14064766 |
Oct 28, 2013 |
|
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14185995 |
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Current U.S.
Class: |
220/4.17 ;
220/4.16; 52/292 |
Current CPC
Class: |
B65D 90/08 20130101;
B65D 90/024 20130101 |
Class at
Publication: |
220/4.17 ;
52/292; 220/4.16 |
International
Class: |
B65D 90/02 20060101
B65D090/02; E02D 27/38 20060101 E02D027/38 |
Claims
1. A modular fluid storage tank comprising: a plurality of arcuate
footings having a base and a rail member extending along the base
and arranged in a circle; a circular bottom sheet covering a
circular space formed by the footings, the circular bottom sheet
extending over the rail in the footings; a plurality of wall panel
sections having a bottom portion, the bottom portion of each wall
panel section being configured to be located adjacent the rail
member of the footings with the bottom sheet positioned between a
bottom portion of each wall panel section and the footing rail
member; and the adjacent wall panel sections connected to each
other along a vertical joint.
2. A modular fluid storage tank according to claim 1 further
including a plurality of tie down clamps securing each wall panel
section to the footings.
3. A modular fluid storage tank according to claim 2 wherein the
wall panel sections have a lower frame member positioned adjacent
the rail and the tie down clamps have a first member overlying the
lower frame member and a second member engaging the footings.
4. A modular fluid storage tank according to claim 1 wherein the
rail is formed by a curved rail attached to an upper surface of the
footing.
5. A modular fluid storage tank as claimed in claim 1 further
including a gasket positioned between the wall panel section and
the bottom sheet.
6. A modular fluid storage tank as claimed in claim 5 including a
second gasket positioned between the bottom sheet and the
footing.
7. A modular fluid storage tank as claimed in claim 1 wherein the
wall panel sections have a top portion, a bottom portion and two
vertically extending side wall portions, wherein the vertically
extending side wall portions of each wall panel sections are
secured to each other by a joint.
8. A footing for a modular fluid storage tank comprising: a
horizontally curved body having a top surface having width; and a
rail formed on the top surface.
9. A modular fluid storage tank as claimed in claim 1 further
including a plurality of tie down clamps and a plurality of
threaded bolts extending through apertures in the tie down clamp,
and a plurality of threaded holes located in the base of the
footing.
10. A footing as claimed in claim 8 further including a plurality
of tie down clamps having a first vertical portion in contact with
the curved body and a second horizontal portion adapted to rest on
top of a lower frame member of a wall panel, and means for securing
the clamps to the curved body.
11. A modular fluid storage tank as claimed in claim 7 wherein the
joint comprises a connector plate attached to the adjacent wall
panel sections.
12. A modular fluid storage tank as claimed in claim 11 further
including a plurality of U-shaped members fixed to adjacent panels
and a plurality of locking pins positioned within the U-shaped
members.
13. A modular fluid storage tank as claimed in claim 12 wherein the
locking pins comprise a generally cylindrical core member and a
plurality of radially extending circular flanges.
14. A modular fluid storage tank comprising: a plurality of arcuate
footings arranged in a circle; a circular tank bottom sheet
covering a circular space formed by the footings; a plurality wall
panel sections each having a top, a bottom, and side portions; a
plurality of gaps formed between adjacent side wall portions; a
plurality of plate members extending from the top and bottom
portion of adjacent wall panel sections and overlying the gap; a
plurality of apertures in the plate members positioned in the gap;
and a plurality of bolts extending thru the gap and a plurality of
washers positioned between an outer surface of adjacent wall panels
and an enlarged head of the bolts.
15. A modular fluid storage tank as claimed in claim 14 wherein the
apertures are threaded and wherein the bolts are threaded and are
threaded into the apertures.
Description
[0001] This application is related to application Ser. No.
13/584,883 filed on Aug. 14, 2012, and is a continuation-in-part of
application Ser. No. 14/064,766 filed on Oct. 28, 2013.
BACKGROUND OF INVENTION 1. Field of the Invention
[0002] This application relates to a fluid storage tank that can be
assembled at a remote location where a supply of fluid, for example
water, is needed.
[0003] An example of such a situation occurs where an oil or gas
well treatment process such as fracturing is conducted at the well
site. In such a situation either a large temporary water storage
tank is assembled on site or a plurality of smaller portable water
tanks are delivered to the site.
[0004] 2. Description of Related Art
[0005] In the oil and gas industry, water storage has become an
issue due to the large amount of barrels of water required to
perform drilling operations. Cost of transporting a large number of
tanks to location, and logistical problems of having enough space
at the well site to accommodate their positioning has forced the
oil and gas industry to find a solution. The solution that has
developed is the use of a single mobile erecting tank. These tanks
eliminate a large fleet of storage vessels and the cost of
transporting them to location.
[0006] These large capacity tanks normally comprise 16 single
panels that connect together side by side, forming in one
embodiment a 122 ft. diameter tank with a height of 12 ft. After
they are assembled a rubber sheet, plastic, or polypropylene sheet
is positioned in the inside and the edges are laid over the top
rail of the tank. These edges of the sheet are secured to the top
rail by the use of c-clamps.
[0007] The suction lines are then hung over into the tank and the
tank is then filled with water. As the tank is filled, water forces
the sheet into the lower inside corners of the tank. This can allow
the sheet to be pinched or protrude under the wall of the tank
causing a leak or tear of the rubber sheet.
[0008] A drain sump is formed under the sheet so that most of the
water can be evacuated from the tank.
[0009] An improved modular storage tank is disclosed in copending
application Ser. No. 13/584,883 filed Aug. 14, 2012. However, the
sheet that forms the bottom of the tank needs to extend up and over
the sides of the tank which requires more material. Also it is
still necessary to construct a sump in the ground to facilitate
emptying of the tank.
BRIEF SUMMARY OF THE INVENTION
[0010] A fluid storage tank is formed by a plurality of arcuate
wall support footings that provide structural support for a
plurality of wall panel sections and also hold the floor sheet of
the tank in sealing engagement with the wall panels without the
need for the sheet to extend upwardly over the top of the wall
panels. The footings also form a sump so that the water may be
entirely withdrawn from the tank without the need for forming a
sump ditch.
[0011] The footings may include a channel formed by a pair of
curved rails or may include a single rail placed on the footing to
engage the outer bottom portion of the wall panels.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)
[0012] FIG. 1 is a perspective view of a fluid tank according to an
embodiment of the invention.
[0013] FIG. 2 is a top view of a support footing according to an
embodiment of the invention.
[0014] FIG. 3 is a cross-sectional view taken along line 3-3 of
FIG. 2.
[0015] FIG. 4 is a cross-sectional view of a support fitting
showing a wall portion fixed within the support footing.
[0016] FIG. 5 is a cross-sectional view of the vertical joint
between adjacent wall sections.
[0017] FIG. 6 is an exploded view of the vertical wall joint
between adjacent wall panels.
[0018] FIG. 7 is a cross-sectional view of a second embodiment of a
support footing according to an embodiment of the invention.
[0019] FIG. 8 is a front view of a second embodiment of coupling
structure for two adjacent panels according to the invention.
[0020] FIG. 9 is a top view of the coupling shown in FIG. 8.
[0021] FIG. 10 is a side view of a panel.
[0022] FIG. 11 is a perspective view of a coupling pin.
[0023] FIG. 12 is a top view of the support footing shown in FIG.
7.
[0024] FIG. 13 is a cross-sectional view of another embodiment of a
support footing according to the invention.
[0025] FIG. 14 is a cross-sectional view of a vertical wall joint
according to another embodiment of the invention.
[0026] FIG. 15 is a side view of the wall joint of FIG. 14.
[0027] FIG. 16 is a top view of the footing shown in FIG. 13.
DETAILED DESCRIPTION OF THE INVENTION
[0028] As shown in FIG. 1, an embodiment of the instant invention
is a storage tank 10 formed from a plurality of individual curved
wall panel sections 9 connected to each other at 8. Wall panel
sections 9 are supported by a plurality of footings 13 shown in
greater detail in FIGS. 2 and 3. Wall panel sections 9 are placed
on footings 13 in such a manner that wall joints 8 are located at
approximately the mid-point of each footing 13.
[0029] As shown in FIGS. 2 and 3, each footing includes a bottom
curved plate member 18, an angled plate 19, a top plate 11 and an
end wall plate 26. Suitable supports 27 and 28 extend from top
plate 11 and angled plate 9 to lower plate member 18 all of which
are curved. Lower plate member 18 rests on the ground when the tank
is constructed. A pair of curved rails 24 and 25 extends along the
top plate 11 and are secured thereto by a suitable means such as by
welding. Rails 24 and 25 may be solid or hollow, and may be square
or rectangular in cross section for example. A channel 4 is formed
between rails 24 and 25. A plurality of apertures 22 are formed in
top plate 11 and a plurality of nuts 29 are fixed to the underside
of top plate 11 in alignment with the apertures. A foundation for
the tank is formed by positioning a plurality of the footings 13 in
a circular array on the ground as shown in FIG. 1
[0030] Once the footings are arranged in a circular pattern, a
circular floor sheet 42 having a diameter slightly larger than that
of the tank is laid over the footings in the manner shown in FIG.
4. A pair of rubber gaskets 43 and 44 may be positioned underneath
floor sheet 42 and over floor sheet 42 as shown in FIG. 4 to
provide a water tight seal. Flexible sheet 42 may be made of
rubber, for example.
[0031] After sheet 42 and gaskets 43 and 44 have been laid over
rails 24 and 25, wall panels 9 are placed on footings 13. As shown
in FIG. 4, wall panel sections 9 include a lower frame member 41
having a rectangular cross section and an upstanding wall portion
35. Frame member 41 is curved to the same extent that rails 25 and
26 are curved. Thus frame member 41 will fit in channel 4 between
rails 24 and 25. The weight of wall panels 9 will slightly deform
rubber gaskets 43 and 44 and bottom sheet 42 so as to form a tight
seal. The channel 4 formed by rails 24 and 25 and top plate 11
provide lateral support for wall panel section 9. To provide
further stability, a plurality of tie down clamps 37 are located on
the support footings. Tie down clamps 37 include by way of example
an L-shaped member having a first portion 36 that overlies bottom
frame member 41 of the wall panel section and a second leg portion
39 that engages the top surface of the footing. The tie down clamp
includes an aperture 38. A threaded bolt 31 extends through
aperture 38 and aperture 22 in the footing. The threads on the bolt
31 engage threaded nut 32 so that the tie down clamps are secured
to the footings and thus further hold wall panel section 9 in
place.
[0032] As shown in FIG. 4, sloping wall portion 19 of the footing
creates a natural sump area for facilitating complete draining of
the tank. The clamps may include one or more strengthening flanges
34.
[0033] FIGS. 5 and 6 illustrates an embodiment of the joint
structure between adjoining wall panels. A first wall panel 63
includes a metal strip 59 attached to the panel by a plurality of
vertically spaced bolts and nuts 51 and 52. Metal strip includes a
V-shaped portion 70. A second metal strip 60 is attached to wall
panel 62 by a plurality of bolts 71 and nuts 72. Metal strip 60 has
an angled portion 73 that abuts against V-portion 70 as shown in
FIG. 5. A plurality of tabs 55 with an opening 56 extend outwardly
from V-shaped portion 70 through slots 75 formed in section 73 of
strip 60.
[0034] A reinforcement plate 58 having openings therein and rubber
gasket 76 extend along both sides of joints 8 and are attached at
either side to adjacent wall panels 62 and 63 as shown in FIG. 6.
Pins 80 may be placed through holes 56 in tabs 55 thereby further
securing the wall panels together. Additionally a rectangular
reinforcing plate 57 can be fixed to angled portion 73 about each
tab 55.
[0035] A second embodiment of a support footing 110 according to
the invention is illustrated in FIG. 7. Each footing 110 includes a
curved base plate 111 which may be about 24 inches wide. A
plurality of footing 110 for example 16 are placed in a circle to
form a support for the wall panels 9 shown in FIG. 1. A pair of
curved rails 125 and 126 are fixedly secured to base plate 111 such
as by welding. Rails 126 and 125 may be solid or hollow tubulars,
and may be rectangular in cross section. As shown in FIG. 12, rails
126 and 125 are spaced apart so as to form a rectangularly shaped
channel 199 sized to receive a lower frame member 141 of panel 9.
Lower frame member 141 of panel 135 may have a rectangular cross
section that fits within rectangular shaped channel 199. The
support footing 110 also includes a plurality of L-shaped brackets
137 that include a horizontal section 136 and a vertical section
139. Vertical section rests on base plate 111 and horizontal
portion 137 extends over lower frame member 141 of panel 135 as
shown in FIG. 7. As in the embodiments of FIG. 1, a flexible tank
floor sheet 142 and optionally a pair of rubber gaskets 144 and 145
over and below sheet 142 are first placed over rail members 125 and
126. Wall panels 9 are then placed on the support footings so that
lower frame member 141 is positioned within channel 199. The weight
of wall panels 9 will compress flooring sheet 142 and gaskets 144
and 145 to form a fluid tight seal, thus eliminating the need for
the flexible floor sheet 142 to extend over the top of the wall
panels.
[0036] Clamps 137 may then be installed to further secure the wall
panels to the footings by means of threaded bolts 131 that extend
through openings 138 in horizontal portion 136 and are threaded
into threaded holes 140 provided in base plate 111.
[0037] FIGS. 8-11 illustrate a second embodiment of a coupling
arrangement for adjacent wall panels according to the invention.
FIG. 8 shows adjacent wall panels 9 and 7. A first wall panel 9 has
a top frame member 121, a bottom frame member 124 and a side frame
member 130 extending from top frame 121 to bottom frame member 124.
All three frame members may be rectangular tubing. The same is true
for adjacent wall panel 7 which is constructed in the same manner
as wall panel 9. A first reinforcing plate 128 extends from bottom
frame member 124 to top member 121 and one end of the wall panel. A
second reinforcing plate 129 extends between bottom frame member
124 to top frame member 121 at a second end of the wall panel.
Reinforcing plates 128 and 129 are fabricated from relatively stiff
material such as steel. The plates include a plurality of apertures
126 and 127. As disclosed in copending application Ser. No.
13/584,882, filed on Aug. 14, 2012, the entire contents of which is
hereby expressly incorporated herein by reference thereto, wall
panels 9 and 8 may include a plurality of flexible reinforcing
bands 123 which are connected at their ends to steel plates 128 and
129.
[0038] The coupling arrangement also includes a connector plate
152, which may be slightly curved to conform to the curvature of
wall panels 9 and 7 which extends along and overlaps the ends of
adjacent wall panels as shown in FIG. 9. Connector plate 152 has a
plurality of apertures which align with apertures 126 and 127.
Suitable bolts 156 and 157 are adapted to pass through the
apertures in connector plate 152 and apertures 126 and 127 in
reinforcing plates 128 and 129. Fasteners such as nuts can then be
used to secure the connector plate 152 and reinforcing plates
together or apertures 126 and 127 may be threaded. A strip 153 of
gasket type material may be placed between connector plate 152 and
reinforcing plates 128 and 129.
[0039] The holes in connector plate 152 and those in reinforcing
plates 128 and 129 are aligned such that a gap 151 of approximately
one half inch is maintained between adjacent panels 9 and 7.
[0040] The coupling assembly may further include a plurality of
U-shaped members 170 fixedly secured such as by welding to the
front vertically extending surfaces of side frame member 130 and
131. A plurality of locking pins 162 have a generally cylindrical
core member 164. Four radially extending circular flanges 163
extending outwardly from core member 164 and form recesses 165 and
166 at either end of the locking pins. These recesses are sized to
fit within the U-shaped channels of members 170 as shown in FIG. 9.
This arrangement further presents lateral separation of the wall
panels.
[0041] FIGS. 13-15 illustrate another embodiment of the invention.
As in previous embodiments the storage tank includes a plurality of
curved footing 260 that are positioned adjacent each other to form
a circle. A plurality of wall panels 235 are placed on top of the
footings to form a circular side wall of the storage tank.
[0042] Each footing 260 includes a ground engaging base 211. A
single curved rail member 226 is fixed by welding for example to
the base 261 at an outer portion of the base in a manner similar to
that shown in FIG. 2 with respect to rail 24. The floor of the tank
is formed by a ground engaging sheet of flexible material 242 that
extends upwardly over base 211 and over rail member 226 as shown in
FIG. 13. A first strip of flexible material 244 and a second strip
of flexible material may be positioned below and on top of the rail
226 to protect floor member 242 from excessive wear. The base 211
of the footing extends a substantial distance toward the center of
the tank from wall panel 235 to provide stability and support. It
may extend for example up to five feet within the perimeter of the
tank.
[0043] A plurality of clamps are used to secure the wall panels to
the footings 260. Each clamp includes an L-shaped member including
a vertical portion 239 and a horizontal portion 236. Horizontal
portion 236 includes one or more apertures 238. Base 211 includes
one or more threaded apertures 220 that are in alignment with
apertures 238. A threaded bolt 231 having an enlarged head 232 is
passed thru aperture 238 so that threads 251 of the bolt engage the
threads of aperture 240. As the bolt is threaded down, enlarged
head 252 of the threaded bolt 231 engages the top surface of
horizontal portion 236 of the clamp. Horizontal portion 236 also
extends over the top of a bottom frame member 241 of the wall panel
235 thereby clamping the sidewall panel to the footing. Clamps 237
may be the same radial length of the footings or may include a
plurality of individual clamps that extend over only a radial
portion of the footings.
[0044] FIGS. 14 and 15 illustrate another embodiment of a vertical
coupling for the wall panels 235. As the wall panels 235 are
positioned on top of the footings to form a circular sidewall, a
gap 290 of approximately 1/4 to 3/4 inches for example is formed
between the side edges 291 and 292 of adjacent wall panels. A
vertically extending plate formed of steel or a similar material
which may have a slight curvature to match the curvature of the
sidewalls is positioned to overlay the gap 290 as shown in FIG. 14
and extends from the bottom to the top of the wall panels. A
sealing member 271 of rubber or similar material may be placed
between the metal strip 270 and the wall panels as shown in FIG.
14. Strips 270 are provided with a plurality of thread apertures
276. A plurality of bolts 272 having enlarged heads 273 that engage
a washer member 274 are placed through gap 290 so that the threaded
end of the bolt engages threaded apertures 276. As bolt 272 is
tightened, enlarged head 274 forces washer 274 to engage the outer
surfaces of adjacent sidewall panels 235 to thereby clamp the
sidewall panels together. For added structural integrity, metal
plate members 270 may be welded to the interior surface of sidewall
panels 235 such by spot welds 298.
[0045] As shown in FIG. 15, a plurality of U-shaped member 281 may
also be secured to the outer surfaces of adjacent sidewall panel
members to receive locking pins 162 in the manner shown in FIGS.
9-11. This will further prevent the sidewall panels from separating
from each other.
[0046] Although the present invention has been described with
respect to specific details, it is not intended that such details
should be regarded as limitations on the scope of the invention,
except to the extent that they are included in the accompanying
claims.
* * * * *