CA2446915A1 - Containment systems - Google Patents
Containment systems Download PDFInfo
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- CA2446915A1 CA2446915A1 CA 2446915 CA2446915A CA2446915A1 CA 2446915 A1 CA2446915 A1 CA 2446915A1 CA 2446915 CA2446915 CA 2446915 CA 2446915 A CA2446915 A CA 2446915A CA 2446915 A1 CA2446915 A1 CA 2446915A1
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- Canada
- Prior art keywords
- load line
- spill
- containment system
- tray
- spill containment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
- B67D7/3209—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid relating to spillage or leakage, e.g. spill containments, leak detection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A spill containment system comprising a spill tray with a lid and a support, the spill tray formed of plastic to be lighter and more resistant to corrosive materials, the spill tray being grounded against static shock. The containment system also comprises a support for receiving the spill tray. After transfer of liquid, the line may be cleared and any spilled fluids may be recovered by a valve connected to a tube in a sump at the bottom of spill tray. The piping entering the spill tray is stabilized by a support. Access to the spill tray may be a hole the size of the piping, an indent in the bottom of the spill tray with a corresponding protrusion in the lid, or an opening covered by a flexible material. A ground is provided that may ground the piping, the fluid in the spill tray, and a truck.
Description
O~NTAIIdTMENT SYSTEMS
BACKGROUND OF THE IN~IENTION
Ol Oilfield tanks must be emptied periodically into transport tank trucks. The transfer of fluid between tank and tank truck may result in spills and create an environmental hazard either through a poor connection or from extra fluid being present in the piping once disconnected. Spill trays are sometimes used to catch the leaking fluids, and plastic is a common material to use as it is light, and is resistant against weather and corrosive materials. A problem with using plastic, however, is the possibility that static charge may build during the transfer of fluid to and from the spill tray, which may result in a fire or explosion when oilfield fluids are involved.
This invention is intended to help reduce these risks.
SUMMARY OF THE INDENTION
02 There is therefore provided, according to an aspect of the invention, a load line spill containment system comprising a bottom and a surrounding wall forming a spill tray. In a further aspect, the spill tray comprises an access in the s~zrrounding wall for receiving a pipe having a joint, the spill tray being configured to receive the joint. In a further aspect, the spill tray comprises a horizontally elongated access for receiving plural horizontally separated pipes each having joints, the spill tray being configured to receive the joints. The horizontally elongated access or piping may be covered by a flexible impermeable covering.
In a further aspect, the bottom comprises a sump. In a further aspect, there is a drain system, the drain system comprising a valve and a tube, the valve connected benueen the pipe and the tube, the tube being in fluid communication with the sump. The tube may be constructed to resist collapsing under negative pressure. In a further aspect, the tube reaches to the bottom of the sump but does not touch the bottom of the sump to avoid forming a seal under negative pressure. In a further aspect, there is provided a lid adapted for being supported by the spill tray and extending over the spill tray. The spill tray may be formed of plastic. In a further aspect, the access comprises a hole in one end of the container such that the top half of the hole is in the lid and the bottom half is in the bottom, and such that, when the piping is present and the lid is closed, the hole is filled.
03 In a further aspect, there is provided a support saddle, the spill tray being received and supported by the support saddle. The support saddle may be generally U-shaped, and the spill tray may have a corresponding shape. In a further aspect, the bottom comprises a downward oriented protrusion, and the surrounding wall comprises groove in at least one side of the surrounding wall, and where the support saddle further comprises a middle section and two end sections, the middle section being laterally oriented and having the length and shape of the downward oriented protrusion comprised in the bottom, the two end sections being vertically oriented and attached to the ends of the middle section, the end sections having the same shape as the corresponding side wall, such that the nuddle section receives the wedge and the vertically oriented sections receive the surrounding wall such that the container is supported.
The downward oriented protrusion may comprises the sump.
04 In a further aspect, the load line spill containment system comprises a ground system, the ground system comprising a conductor connected to an external ground box and received by the spill tray such that when fluid is present, the conductor is in contact with the Iluid. The ground box may be further connected to the pipe and to a grounded body. In a further aspect, the load line spill containment system comprises a ground system, the ground system comprising a conductor connected to the valve and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid. The valve may be further connected to a grounded body. In a further aspect, the spill tray further comprises a stabilizing support outside the access to the spill tray for stabilizing the pipe, where the pipe is attached to the stabilizing support. The stabilizing support may be metal and may be connected to a stabilizing support saddle.
OS These and other aspects of the invention are described in the detailed description of the invention and claimed in the claims that follow.
BRIEF DESCRIPTION OF THE DRAWINGS
06 There will now be described preferred embodiments of the invention, with reference to the drawings, by way of illustration only and not with the intention of limiting the scope of the invention, in which like numerals denote like elements and in which:
Fig. 1 depicts a front perspective of the bottom of a drip tray;
Fig. 2 depicts a rear perspective of the bottom of Fig. 1;
Fig. 3 depicts a front perspective of a lid of the drip tray;
Fig. 4 depicts a rear perspective of the lid of Fig. 3;
Fig. 5 depicts a drain valve;
Fig. 6 depicts piping entering the drip tray;
Fig. 7 depicts a support used to hold the drip tray and grounding system.
Fig. 8 depicts a perspective of the bottom of a drip tray;
Fig. 9 depicts a front perspective of a lid of the bottom of Fig. 8;
Fig. 10 depicts a rear perspective of a lid of the bottom of Fig. 8; and Fig. 11 depicts the spill containment system.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
07 In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word in the sentence are included and that items not specifically mentioned are not excluded. The use of the indefinite article "a" in the claims before an element means that one of the elements is specified, but does not specifically exclude others of the elements being present, unless the context clearly requires that there be one and only one of the elements.
08 According to the invention, there is provided a load line spill containment system 100 comprising a spill tray 102 and a support 104 for receiving the spill tray 102. The spill tray is comprised of a sloped bottom 106 which also includes a sump 108, a surrounding wall 110, a lid 112, and an access for piping 114. To make the spill tray lighter and more resistant to corrosion, rust, and other degrading factors, the spill tray is preferably composed of plastic, although any other suitable material may be used. The spill tray also preferably hold more than 30 L. The lid may be attached by hinges, for example (not shown).
09 As this containment system is to be designed for use with petroleum products and other hazardous materials, it is preferable to have a device capable of grounding the interior of the container. A ground wire 202 such as a stainless steel wire is attached to a ground box 204 at one end, which is in turn attached to an external ground 206. The ground wire is laid inside the spill tray 102 and acts to ground any fluid which may be present. The wire 202 can be run outside the spill tray 102 and connected to a connection accessible from the outside. This may be attached to the outside of the wall 110 of the spill tray 102, or to the support 104 which may be metal so that it may be attached by welding. The connection may be a grounding box 204 in which the wire is attached by a screw 210, and a ground wire 202 from an external source 206 such as a truck or a grounding rod can be easily attached and removed by another screw 212. Other grounding options may include connecting the wire 202 to the valve system (discussed below) which is metal and is connected to metal piping, or by using metal tubing in the valve system.
Referring to Fig. 11, the spill tray 102 encloses a connection 402 between piping 404 connected to a fluid source such as a tank 410, and piping 405 connected to a fluid destination 412, such as a truck or trailer. This allows the spill tray 102 to contain any fluid coming from a poor or faulty connection from tank to truck. There is also provided a valve 406 connected to a tube 408 running to the bottom of the tray. Onee the transfer of fluid is complete, the main valve 414 on the source 410 is closed, and the valve 406 connected to the tube at the bottom of the tray is opened while negative pressure from the trailer is still present, allowing the piping 405 to the trailer 412 to empty itself, and drain any fluid from the drip tray 102 as well. This valve system also allows samples to be taken by opening the valve and filling a sample container from the tube 408 if it is chosen to be flexible. The tubing 408 preferably runs down into the sump 108, and is protected against to being sealed in the presence of a vacuum, such that it will not close as fluid is being sucked out. A v-shaped sump as depicted in Fig. 5 is convenient for providing protection against a seal being formed to the bottom of the tray. The tubing 408 is just long enough to reach the bottom, but not long enough to seal against any flat surfaces. The tubing 408 is also chosen to be a tubing that resists collapsing under negative pressure. Some options for the tubing 408 include a hard plastic such as PVC, a braided stainless steel tube, or a tubing that has an internal metal support and an outer rubber covering.
11 In one embodiment, the access 114 to the spill tray comprises a hole 116 in one end of the spill tray such that the top half of the hole 118 is in the lid 112 and the bottom half of the hole 120 is in the bottom, and such that, when the piping 404 is present and the lid 112 is closed, the hole 116 is filled. The hole may be made after the spill tray is formed by using a hole saw, which allows for the tray to be custom made to the size of piping being used. The opposite end of the spill tray comprises an indentation 122 in the bottom and a protrusion 124 on the top such that, when the lid is closed, the protrusion is filled by the indentation, and such that, when the lid is open, the indentation 122 acts as a cradle for piping from a fluid destination. Another embodiment allows the protrusion to be replaced by a flexible material, such as rubber. This allows the lid to be completely closed while piping is present which is useful to keep out rain or snow during adverse weather.
12 In another embodiment, the spill tray 112 comprises grooves 502 in the surrounding wall of the container and a wedge 504 downward oriented and extending the length of the bottom 106 of the spill tray 102. The wedge, which may also be an extended dip, may form the sump 108. The support 104 as depicted in I~ ig. 7 comprises angle iron laterally oriented 506 the length of the wedge 504 in the bottom of the container and angle iron vertically oriented 508 attached or welded to the ends of the laterally oriented angle iron and are the length of the grooves in the surrounding wall. As the wedge 504 and the grooves 502 are designed to be the same size as the angle iron, and the angle iron is the same length as the wedge and grooves, this three-sided structure can receive the spill tray 102 in such a way that the spill tray is supported from rotating, overturning, or sliding. If a dip is used instead of a wedge, then the angle iron along the bottom would be replaced with a similarly shaped length of metal. As well, because of warping which may occur during the fabrication of the support, it may be convenient to replace one of the vertically oriented angle irons with a flat piece of metal. The support need not be metal, simply a material strong enough to hold the spill tray when full. Metal is convenient, however, because of its strength and grounding capabilities.
Other options may include multiple wedges or dips along the bottom with a corresponding number of lateral supports. This may form a plurality of sumps.
13 To stabilize the piping 404 entering the spill tray I02, it is convenient to have a stabilizing support 510 at the access to the spill tray. The stablilizing support is preferably made of metal and attached to the angle iron support 104 such as by welding, although it may be formed directly onto the plastic spill tray. The advantage of metal is that, when attached to piping 404 or 405, the piping will also be grounded when using the grounding means. The piping is attached to the stabilizing 510 support using U-bolts 512 for a strong hold and a better ground connection, although other means, such as Velcro strips, may also be used.
14 Another embodiment of the containment system is shown in Figs. 8 and 9.
This embodiment may or may not incorporate a support, as it is designed to be shallow and to sit on the ground under a tank such as a 400-barrel tank, which may have piping close to the ground.
The drip tray 600 comprises a wall 601 and a sloped bottom 603, which slopes toward a sump 614. It may, however use Iegs or another type of support to allow for proper drainage. The advantage of this embodiment is a shallow bottom, which is convenient for containing spills from piping connections along the ground. In this embodiment, the access for piping 114 comprise an opening 602 in one end of the lid and an opening 604 in the other end of the lid, each of which are covered by a flexible covering 608 such that the lid 605 can be closed once the piping 610 is connected. The openings 602 and 604 are wide enough to allow more than one piping. This design also encloses a connection between piping connected to a fluid source and piping connected to a fluid destination. As with the other embodiment, the piping connected to a fluid source may also comprise a valve capable of being opened and closed and tubing such that excess fluid in the load or in the drip txay may be removed after the transfer of fluid. This embodiment also comprises a stabilizing support (not shown) that attaches to the drip tray and to the piping by U-bolts. A grounding device 612 may also be attached.
_. _ f _. ___ .. . ~~,_ __~~n~,-r_.~~"._.~._ ~...._ __,.~,~____ M. . .~.,~."~
_..~,..,, 15 A person skilled in the art could make immaterial modifications to the invention described in this patent document without departing from the invention.
BACKGROUND OF THE IN~IENTION
Ol Oilfield tanks must be emptied periodically into transport tank trucks. The transfer of fluid between tank and tank truck may result in spills and create an environmental hazard either through a poor connection or from extra fluid being present in the piping once disconnected. Spill trays are sometimes used to catch the leaking fluids, and plastic is a common material to use as it is light, and is resistant against weather and corrosive materials. A problem with using plastic, however, is the possibility that static charge may build during the transfer of fluid to and from the spill tray, which may result in a fire or explosion when oilfield fluids are involved.
This invention is intended to help reduce these risks.
SUMMARY OF THE INDENTION
02 There is therefore provided, according to an aspect of the invention, a load line spill containment system comprising a bottom and a surrounding wall forming a spill tray. In a further aspect, the spill tray comprises an access in the s~zrrounding wall for receiving a pipe having a joint, the spill tray being configured to receive the joint. In a further aspect, the spill tray comprises a horizontally elongated access for receiving plural horizontally separated pipes each having joints, the spill tray being configured to receive the joints. The horizontally elongated access or piping may be covered by a flexible impermeable covering.
In a further aspect, the bottom comprises a sump. In a further aspect, there is a drain system, the drain system comprising a valve and a tube, the valve connected benueen the pipe and the tube, the tube being in fluid communication with the sump. The tube may be constructed to resist collapsing under negative pressure. In a further aspect, the tube reaches to the bottom of the sump but does not touch the bottom of the sump to avoid forming a seal under negative pressure. In a further aspect, there is provided a lid adapted for being supported by the spill tray and extending over the spill tray. The spill tray may be formed of plastic. In a further aspect, the access comprises a hole in one end of the container such that the top half of the hole is in the lid and the bottom half is in the bottom, and such that, when the piping is present and the lid is closed, the hole is filled.
03 In a further aspect, there is provided a support saddle, the spill tray being received and supported by the support saddle. The support saddle may be generally U-shaped, and the spill tray may have a corresponding shape. In a further aspect, the bottom comprises a downward oriented protrusion, and the surrounding wall comprises groove in at least one side of the surrounding wall, and where the support saddle further comprises a middle section and two end sections, the middle section being laterally oriented and having the length and shape of the downward oriented protrusion comprised in the bottom, the two end sections being vertically oriented and attached to the ends of the middle section, the end sections having the same shape as the corresponding side wall, such that the nuddle section receives the wedge and the vertically oriented sections receive the surrounding wall such that the container is supported.
The downward oriented protrusion may comprises the sump.
04 In a further aspect, the load line spill containment system comprises a ground system, the ground system comprising a conductor connected to an external ground box and received by the spill tray such that when fluid is present, the conductor is in contact with the Iluid. The ground box may be further connected to the pipe and to a grounded body. In a further aspect, the load line spill containment system comprises a ground system, the ground system comprising a conductor connected to the valve and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid. The valve may be further connected to a grounded body. In a further aspect, the spill tray further comprises a stabilizing support outside the access to the spill tray for stabilizing the pipe, where the pipe is attached to the stabilizing support. The stabilizing support may be metal and may be connected to a stabilizing support saddle.
OS These and other aspects of the invention are described in the detailed description of the invention and claimed in the claims that follow.
BRIEF DESCRIPTION OF THE DRAWINGS
06 There will now be described preferred embodiments of the invention, with reference to the drawings, by way of illustration only and not with the intention of limiting the scope of the invention, in which like numerals denote like elements and in which:
Fig. 1 depicts a front perspective of the bottom of a drip tray;
Fig. 2 depicts a rear perspective of the bottom of Fig. 1;
Fig. 3 depicts a front perspective of a lid of the drip tray;
Fig. 4 depicts a rear perspective of the lid of Fig. 3;
Fig. 5 depicts a drain valve;
Fig. 6 depicts piping entering the drip tray;
Fig. 7 depicts a support used to hold the drip tray and grounding system.
Fig. 8 depicts a perspective of the bottom of a drip tray;
Fig. 9 depicts a front perspective of a lid of the bottom of Fig. 8;
Fig. 10 depicts a rear perspective of a lid of the bottom of Fig. 8; and Fig. 11 depicts the spill containment system.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
07 In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word in the sentence are included and that items not specifically mentioned are not excluded. The use of the indefinite article "a" in the claims before an element means that one of the elements is specified, but does not specifically exclude others of the elements being present, unless the context clearly requires that there be one and only one of the elements.
08 According to the invention, there is provided a load line spill containment system 100 comprising a spill tray 102 and a support 104 for receiving the spill tray 102. The spill tray is comprised of a sloped bottom 106 which also includes a sump 108, a surrounding wall 110, a lid 112, and an access for piping 114. To make the spill tray lighter and more resistant to corrosion, rust, and other degrading factors, the spill tray is preferably composed of plastic, although any other suitable material may be used. The spill tray also preferably hold more than 30 L. The lid may be attached by hinges, for example (not shown).
09 As this containment system is to be designed for use with petroleum products and other hazardous materials, it is preferable to have a device capable of grounding the interior of the container. A ground wire 202 such as a stainless steel wire is attached to a ground box 204 at one end, which is in turn attached to an external ground 206. The ground wire is laid inside the spill tray 102 and acts to ground any fluid which may be present. The wire 202 can be run outside the spill tray 102 and connected to a connection accessible from the outside. This may be attached to the outside of the wall 110 of the spill tray 102, or to the support 104 which may be metal so that it may be attached by welding. The connection may be a grounding box 204 in which the wire is attached by a screw 210, and a ground wire 202 from an external source 206 such as a truck or a grounding rod can be easily attached and removed by another screw 212. Other grounding options may include connecting the wire 202 to the valve system (discussed below) which is metal and is connected to metal piping, or by using metal tubing in the valve system.
Referring to Fig. 11, the spill tray 102 encloses a connection 402 between piping 404 connected to a fluid source such as a tank 410, and piping 405 connected to a fluid destination 412, such as a truck or trailer. This allows the spill tray 102 to contain any fluid coming from a poor or faulty connection from tank to truck. There is also provided a valve 406 connected to a tube 408 running to the bottom of the tray. Onee the transfer of fluid is complete, the main valve 414 on the source 410 is closed, and the valve 406 connected to the tube at the bottom of the tray is opened while negative pressure from the trailer is still present, allowing the piping 405 to the trailer 412 to empty itself, and drain any fluid from the drip tray 102 as well. This valve system also allows samples to be taken by opening the valve and filling a sample container from the tube 408 if it is chosen to be flexible. The tubing 408 preferably runs down into the sump 108, and is protected against to being sealed in the presence of a vacuum, such that it will not close as fluid is being sucked out. A v-shaped sump as depicted in Fig. 5 is convenient for providing protection against a seal being formed to the bottom of the tray. The tubing 408 is just long enough to reach the bottom, but not long enough to seal against any flat surfaces. The tubing 408 is also chosen to be a tubing that resists collapsing under negative pressure. Some options for the tubing 408 include a hard plastic such as PVC, a braided stainless steel tube, or a tubing that has an internal metal support and an outer rubber covering.
11 In one embodiment, the access 114 to the spill tray comprises a hole 116 in one end of the spill tray such that the top half of the hole 118 is in the lid 112 and the bottom half of the hole 120 is in the bottom, and such that, when the piping 404 is present and the lid 112 is closed, the hole 116 is filled. The hole may be made after the spill tray is formed by using a hole saw, which allows for the tray to be custom made to the size of piping being used. The opposite end of the spill tray comprises an indentation 122 in the bottom and a protrusion 124 on the top such that, when the lid is closed, the protrusion is filled by the indentation, and such that, when the lid is open, the indentation 122 acts as a cradle for piping from a fluid destination. Another embodiment allows the protrusion to be replaced by a flexible material, such as rubber. This allows the lid to be completely closed while piping is present which is useful to keep out rain or snow during adverse weather.
12 In another embodiment, the spill tray 112 comprises grooves 502 in the surrounding wall of the container and a wedge 504 downward oriented and extending the length of the bottom 106 of the spill tray 102. The wedge, which may also be an extended dip, may form the sump 108. The support 104 as depicted in I~ ig. 7 comprises angle iron laterally oriented 506 the length of the wedge 504 in the bottom of the container and angle iron vertically oriented 508 attached or welded to the ends of the laterally oriented angle iron and are the length of the grooves in the surrounding wall. As the wedge 504 and the grooves 502 are designed to be the same size as the angle iron, and the angle iron is the same length as the wedge and grooves, this three-sided structure can receive the spill tray 102 in such a way that the spill tray is supported from rotating, overturning, or sliding. If a dip is used instead of a wedge, then the angle iron along the bottom would be replaced with a similarly shaped length of metal. As well, because of warping which may occur during the fabrication of the support, it may be convenient to replace one of the vertically oriented angle irons with a flat piece of metal. The support need not be metal, simply a material strong enough to hold the spill tray when full. Metal is convenient, however, because of its strength and grounding capabilities.
Other options may include multiple wedges or dips along the bottom with a corresponding number of lateral supports. This may form a plurality of sumps.
13 To stabilize the piping 404 entering the spill tray I02, it is convenient to have a stabilizing support 510 at the access to the spill tray. The stablilizing support is preferably made of metal and attached to the angle iron support 104 such as by welding, although it may be formed directly onto the plastic spill tray. The advantage of metal is that, when attached to piping 404 or 405, the piping will also be grounded when using the grounding means. The piping is attached to the stabilizing 510 support using U-bolts 512 for a strong hold and a better ground connection, although other means, such as Velcro strips, may also be used.
14 Another embodiment of the containment system is shown in Figs. 8 and 9.
This embodiment may or may not incorporate a support, as it is designed to be shallow and to sit on the ground under a tank such as a 400-barrel tank, which may have piping close to the ground.
The drip tray 600 comprises a wall 601 and a sloped bottom 603, which slopes toward a sump 614. It may, however use Iegs or another type of support to allow for proper drainage. The advantage of this embodiment is a shallow bottom, which is convenient for containing spills from piping connections along the ground. In this embodiment, the access for piping 114 comprise an opening 602 in one end of the lid and an opening 604 in the other end of the lid, each of which are covered by a flexible covering 608 such that the lid 605 can be closed once the piping 610 is connected. The openings 602 and 604 are wide enough to allow more than one piping. This design also encloses a connection between piping connected to a fluid source and piping connected to a fluid destination. As with the other embodiment, the piping connected to a fluid source may also comprise a valve capable of being opened and closed and tubing such that excess fluid in the load or in the drip txay may be removed after the transfer of fluid. This embodiment also comprises a stabilizing support (not shown) that attaches to the drip tray and to the piping by U-bolts. A grounding device 612 may also be attached.
_. _ f _. ___ .. . ~~,_ __~~n~,-r_.~~"._.~._ ~...._ __,.~,~____ M. . .~.,~."~
_..~,..,, 15 A person skilled in the art could make immaterial modifications to the invention described in this patent document without departing from the invention.
Claims (62)
1. A load line spill containment system, comprising:
a bottom and a surrounding wall forming a spill tray, the bottom comprising a sump;
an access in the surrounding wall for receiving a pipe having a joint, the spill tray being configured to receive the joint; and a drain system, the drain system comprising a valve and a tube, the valve connected between the pipe and the tube, the tube being in fluid communication with the sump.
a bottom and a surrounding wall forming a spill tray, the bottom comprising a sump;
an access in the surrounding wall for receiving a pipe having a joint, the spill tray being configured to receive the joint; and a drain system, the drain system comprising a valve and a tube, the valve connected between the pipe and the tube, the tube being in fluid communication with the sump.
2. ~The load line spill containment system of claim 1 further comprising a lid adapted for being supported by the spill tray and extending aver the spill tray.
3. ~The load line spill containment system of claim 1 further comprising a support saddle, the spill tray being received and supported by the support saddle.
4. ~The load line spill containment system of claim 3 where the support saddle is generally U-shaped, and the spill tray has a corresponding shape.
5. ~The load line spill containment system of claim 4, where the bottom comprises a downward oriented protrusion, and the surrounding wall comprises groove in at least one side of the surrounding wall, and where the support saddle further comprises a middle section and two end sections, the middle section being laterally oriented and having the length and shape of the downward oriented protrusion comprised in the bottom, the two end sections being vertically oriented and attached to the ends of the middle section, the end sections having the same shape as the corresponding side wall, such that the middle section receives the wedge and the vertically oriented sections receive the surrounding wall such that the container is supported.
6. ~The load line spill containment system of claim 5 in which the downward oriented protrusion comprises the sump.
7. The load line spill containment system of claim 1 in which the spill tray is formed of plastic.
8. The load line spill containment system of claim 1 further comprising a ground system, the ground system comprising a conductor connected to an external ground box and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
9. The load line spill containment system of claim 8 in which the ground box is further connected to the pipe and to a grounded body.
10. The load line spill containment system of claim 1 further comprising a ground system, the ground system comprising a conductor connected to the valve and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
11. The load line spill containment system of claim 10 in which the valve is further connected to a grounded body.
12. The load line spill containment system of claim 1 in which the spill tray further comprises a stabilizing support outside the access to the spill tray for stabilizing the pipe, where the pipe is attached to the stabilizing support.
13. The load line spill containment system of claim 12 in which the stabilizing support is metal and is connected to a stabilizing support saddle.
14. The load line spill containment system of claim 1 in which the tube is constructed to resist collapsing under negative pressure.
15. The load line spill containment system of claim 1 in which the tube reaches to the bottom of the sump but does not touch the bottom of the sump to avoid forming a seal under negative pressure.
16. The load line spill containment system of claim 2 in which the access comprises a hole in one end of the container such that the top half of the hole is in the lid and the bottom half is in the bottom, and such that, when the piping is present and the lid is closed, the hole is filled.
17. A load line spill containment system, comprising:
a bottom and a surrounding wall forming a spill tray, the bottom comprising a wedge downward oriented, the surrounding wall comprising a groove in at least one side of the surrounding wall;
an access for receiving a pipe having a joint, the spill tray being configured to receive the joint; and a support saddle, the spill tray being received and supported by the support saddle;
a bottom and a surrounding wall forming a spill tray, the bottom comprising a wedge downward oriented, the surrounding wall comprising a groove in at least one side of the surrounding wall;
an access for receiving a pipe having a joint, the spill tray being configured to receive the joint; and a support saddle, the spill tray being received and supported by the support saddle;
18. The load line spill containment system of claim 17 where the support saddle is generally U-shaped, and the spill tray has a corresponding shape.
19. The load line spill containment system of claim 17, where the bottom comprises a downward oriented protrusion, and the surrounding wall comprises a groove in at least one side of the surrounding wail, and where the support saddle further comprises a middle section and two end sections, the middle section being laterally oriented and having the length and shape of the downward oriented protrusion comprised in the bottom, the two end sections being vertically oriented and attached to the ends of the middle section, the end sections having the same shape as the corresponding side wall, such that the middle section receives the wedge and the vertically oriented sections receive the surrounding wall such that the container is supported.
20. The load line spill containment system of claim 17 further comprising a drain system, and the bottom comprises a sump, the drain system comprising a valve and a tube, the valve connected between the pipe and the tube, the tube being in fluid communication with the sump.
21. The load line spill containment system of claim 17 further comprising a lid adapted for being supported by the spill tray and extending over the spill tray.
22. The load line spill containment system of claim 19 in which the downward oriented protrusion comprises a sump.
23. The load line spill containment system of claim 17 in which the spill tray is formed of plastic.
24. The load line spill containment system of claim 17 further comprising a ground system, the ground system comprising a conductor connected to an external ground box and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
25. The load line spill containment system of claim 24 in which the ground box is further connected to the pipe and to a grounded body.
26. The load line spill containment system of claim 20 further comprising a ground system, the ground system comprising a conductor connected to the valve and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
27. The load line spill containment system of claim 26 in which the valve is further connected to a grounded body.
28. The load line spill containment system of claim 17 in which the spill tray further comprises a stabilizing support outside the access to the spill tray for stabilizing the pipe, where the pipe is attached to the stabilizing support.
29. The load line spill containment system of claim 28 in which the stabilizing support is metal and is connected to a stabilizing support saddle.
30. The load line spill containment system of claim 20 in which the tube is constructed to resist collapsing under negative pressure.
31. The load line spill containment system of claim 20 in which the tube reaches to the bottom of the sump but does not touch the bottom of the sump to avoid forming a seal under negative pressure.
32. The containment system of claim 21 in which the access comprises a hole in one end of the container such that the top half of the hole is in the lid and the bottom half is in the bottom, and such that, when the piping is present and the lid is closed, the hole is filled.
33. A load line spill containment system, comprising:
a bottom and a surrounding wall forming a spill tray;
an access for receiving a pipe having a joint, the spill tray being configured to receive the joint; and a ground system, the ground system comprising a conductor connected to a grounded body and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
a bottom and a surrounding wall forming a spill tray;
an access for receiving a pipe having a joint, the spill tray being configured to receive the joint; and a ground system, the ground system comprising a conductor connected to a grounded body and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
34. ~The load line spill containment system of claim 31 further comprising a ground system, the ground system comprising a conductor connected to an external ground box and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
35. ~The load line spill containment system of claim 34 in which the ground box is further connected to the pipe and to a grounded body.
36. The load line spill containment system of claim 33, further comprising a support saddle, the spill tray being received and supported by the support saddle.
13~~
13~~
37. The load line spill containment system of claim 36 where the support saddle is generally U-shaped, and the spill tray has a corresponding shape.
38. ~The load line spill containment system of claim 37, where the bottom comprises a downward oriented protrusion, and the surrounding wall comprises a groove in at least one side of the surrounding wall, and where the support saddle further comprises a middle section and two end sections, the middle section being laterally oriented and having the length and shape of the downward oriented protrusion comprised in the bottom, the two end sections being vertically oriented and attached to the ends of the middle section, the end sections having the same shape as the corresponding side wall, such that the middle section receives the wedge and the vertically oriented sections receive the surrounding wall such that the container is supported.
39. ~The load line spill containment system of claim 33 further comprising a drain system, and the bottom comprises a sump, the drain system comprising a valve and a tube, the valve connected between the pipe and the tube, the tube being in fluid communication with the sump.
40. ~The load line spill containment system of claim 39 further comprising a ground system, the ground system comprising a conductor connected to the valve and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
41. ~The load line spill containment system of claim 40 in which the valve is further connected to a grounded body.
42. ~The load line spill containment system of claim 33 further comprising a lid adapted for being supported by the spill tray and extending over the spill tray.
43. ~The containment system of claim 42 in which the access comprises a hole in one end of the container such that the top half of the hole is in the lid and the bottom half is in the bottom, and such that, when the piping is present and the lid is closed, the hole is filled.
44. The load line spill containment system of claim 39 in which the downward oriented protrusion comprises the sump.
45. The load line spill containment system of claim 33 in which the spill tray is formed of plastic.
46. The load line spill containment system of claim 33 in which the spill tray further comprises a stabilizing support outside the access to the spill tray for stabilizing the pipe, where the pipe is attached to the stabilizing support.
47. The load line spill containment system of claim 45 in which the stabilizing support is metal and is connected to a stabilizing support saddle.
48. The load line spill containment system of claim 39 in which the tube is constructed to resist collapsing under negative pressure.
49. The load line spill containment system of claim 39 in which the tube reaches to the bottom of the sump but does not touch the bottom of the sump to avoid forming a seal under negative pressure.
50. A load line spill containment system, comprising:
a bottom and a surrounding wall forming a spill tray, the bottom being disposed for supporting the tray on the ground; and a horizontally elongated access for receiving plural horizontally separated pipes each having joints, the spill tray being configured to receive the joints.
a bottom and a surrounding wall forming a spill tray, the bottom being disposed for supporting the tray on the ground; and a horizontally elongated access for receiving plural horizontally separated pipes each having joints, the spill tray being configured to receive the joints.
51. The load line spill containment system of claim 50 further comprising a ground system, the ground system comprising a conductor connected to an external ground box and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
52. The load line spill containment system of claim 51 in which the external ground box is further connected to the pipe and to a grounded body.
53. The load line spill containment system of claim 50 further comprising a drain system, and the bottom comprises a sump, the drain system comprising a valve and a tube, the valve connected between the pipe and the tube, the tube being in fluid communication with the sump.
54. The load line spill containment system of claim 53 in which the spill tray comprises a support for supporting the spill tray such that fluid is permitted to flow into the sump.
55. The load line spill containment system of claim 53 further comprising a ground system, the ground system comprising a conductor connected to the valve and received by the spill tray such that when fluid is present, the conductor is in contact with the fluid.
56. The load line spill containment system of claim 55 in which the valve is further connected to a grounded body.
57. The load line spill containment system of claim 50 further comprising a lid adapted for being supported by the spill tray and extending over the spill tray.
58. The load line spill containment system of claim 50 in which the spill tray is formed of plastic.
59. The load line spill containment system of claim 50 in which the spill tray further comprises a stabilizing support outside the access to the spill tray for stabilizing the pipe, where the pipe is attached to the stabilizing support.
60. The load line spill containment system of claim 55 in which the tube is constructed to resist collapsing under negative pressure.
61. The load line spill containment system of claim 55 in which the tube reaches to the bottom of the sump but does not touch the bottom of the sump to avoid forming a seal under negative pressure.
62. The load line spill containment system of claim 50 in which the horizontally elongated access or piping is covered by a flexible impermeable covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2446915 CA2446915A1 (en) | 2003-11-17 | 2003-11-17 | Containment systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2446915 CA2446915A1 (en) | 2003-11-17 | 2003-11-17 | Containment systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2446915A1 true CA2446915A1 (en) | 2005-05-17 |
Family
ID=34558277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2446915 Abandoned CA2446915A1 (en) | 2003-11-17 | 2003-11-17 | Containment systems |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2446915A1 (en) |
-
2003
- 2003-11-17 CA CA 2446915 patent/CA2446915A1/en not_active Abandoned
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| EEER | Examination request | ||
| FZDE | Dead |