CN100383452C

CN100383452C - Tubing containment system

Info

Publication number: CN100383452C
Application number: CNB2004800068808A
Authority: CN
Inventors: 史蒂文·A·特雷克尔
Original assignee: Omega Flex Inc
Current assignee: Omega Flex Inc
Priority date: 2003-03-26
Filing date: 2004-03-24
Publication date: 2008-04-23
Anticipated expiration: 2024-03-24
Also published as: SI1606547T1; ZA200507307B; CN1761833A

Abstract

An embodiment of the invention is a piping system including a fluid impermeable sleeve (16) having a plurality of longitudinal, spaced ribs (20) formed on an interior surface of the sleeve. A fluid carrying tubing (12) is positioned internal to the sleeve. A coupling (18) has a first end and a second end, the first end having interior threads engaging an outer surface of the sleeve. The coupling has a vent opening (28) in fluid communication with the interior of the sleeve.

Description

Tubing containment system

Background technique

Tubing containment system in the art is used for holding fluid when pipe leakage.U. S. Patent the 6th, 315 has disclosed a kind of existing tubing containment system No. 003, and the full content of this patent is incorporated in this with for referencial use.Yet,, can do some improvement to this system in order more to adapt to its its intended purposes.

Summary of the invention

The pipe-line system of the specific embodiment of the invention comprises the impermeable sleeve of fluid, and this sleeve has some ribs lengthwise, the interval that are formed on the sleeve interior surface.Fluid transmission pipe is positioned at the inside of sleeve.Have the coupling piece of first end and second end, first end has the internal thread that cooperates with the outer surface of sleeve.Coupling piece has the floss hole with the internal fluid communication of sleeve.

Description of drawings

Fig. 1 is the side view that the part of representational tubing containment system is analysed and observe;

Fig. 2 is along the sectional view of 2-2 direction among Fig. 1;

Fig. 3 is the side view of representational pipeline;

Fig. 4 is the side view that the part of another representational tubing containment system is analysed and observe.

Embodiment

Fig. 1 is the side view that the part of tubing containment system 10 is analysed and observe.Tubing containment system comprises the pipeline 12 (shown in Figure 3) that can be contained in the shell 14.Pipeline 12 and shell 14 are contained in the sleeve 16.Sleeve 16 can be made by the suitable polymer that discharge the impermeable material of fluid such as polyethylene or other end that allows fluid (for example gas, liquid etc.) to flow to sleeve 16.Fig. 2 is the cross section of sleeve 16, illustrates to have a plurality of internal diameters of the sleeve 16 of the rib 20 of isolation at interval that pass through.In an embodiment, the fluid that transmits by pipeline 12 is a rock gas.Rib is length lengthwise and that run through sleeve 16.The cross section of the rib among Fig. 2 is leg-of-mutton, but is understandable that the geometric figure that it can use other.If pipeline 12 leaks, fluid flows along the interval between the rib 20 to discharge by coupling piece 18.

Each end at sleeve 16 is the coupling piece 18 with first end 22, and described first end coats the outer surface of sleeve 16.Can sealing gasket 24 (for example O shape ring) be set in case the fluid stopping body flows out coupling piece 18 at first end 22 at first end 22.Coupling piece 18 comprises the shoulder 26 that inserts the degree of depth of coupling piece 18 as backstop with restriction sleeve 16.Shoulder 26 stopped to be provided to the passage of floss hole 28 before contact shell 14.

The internal surface of coupling piece 18 is screw thread preferably.Screw thread cooperates so that coupling piece 18 is secured on the sleeve 16 with the outer surface of sleeve 16.Coupling piece 18 can be made by polyethylene or other polymer.In an embodiment, coupling piece 18 is threaded to coupling piece 18 on the sleeve 16 by making than sleeve 16 hard polymers (being higher hardness tester) with convenient.Alternatively, according to situation about using, coupling piece 18 can be a metal.

Coupling piece 18 is provided with one or more floss holes that are positioned near coupling piece 18 second ends 30.Second end 30 has less times greater than the internal diameter of shell 14, and sealing gasket 32 (for example, O shape ring) provides the fluid-tight between second end 30 and the shell 14.

Floss hole 28 allows to discharge from floss hole 28 in a controlled manner from the fluid that pipeline 12 leaks.Flexible pipe or other conduit can be connected to the fluid of floss hole 28 with divert leaked.Automatic detection to provide pipeline 12 to leak also sensor can be provided with floss hole 28 fluids.The fluid that the shell 14 of pipeline 12 can punch or other is handled with convenient leakage flows to floss hole 28.

Use mould sleeve 16 can be squeezed on the pipeline 12 (whether no matter shell 14 arranged) at shaping rib 20 on the internal surface of sleeve 16.As shown in Figure 3, pipeline is annular, corrugated pipeline, but also can be the polytype pipeline that comprises the pipeline (helically wound tubing) of spirality winding.In an embodiment, pipeline 12 is corrugated stainless steel pipeline.Shell 14 can be conductive to eliminate electric charge.

Fig. 4 is the profile that the part of the tubing containment system 40 that substitutes is analysed and observe.Tubing containment system 40 comprises pipeline 12, shell 14 (optional) and sleeve 16, above it is similar to reference to Fig. 1-3 described those.One end of pipeline 12 is equipped with accessory 42 (fitting).Accessory 42 can be any known accessory, and for example U. S. Patent the 5th, 799, No. 989, the 6th, 079, No. 749, the 6th, 276, the accessory that is disclosed for No. 728, the content quotation of these patents with as a reference, has screw thread extending body 44 inclusion that cooperate with pipeline 12 in this in the end of accessory.

Screw thread extending body 44 is made by metal (for example brass) and is cooperated with the internal surface of conversion coupling piece 46.Conversion coupling piece 46 is preferably made by the impermeable material of fluid that holds fluid (for example gas, liquid etc.) such as polyethylene or other polymer that is fit to.The internal diameter of conversion coupling piece 46 is a bit larger tham the external diameter of sleeve 16 to form frictional fit between conversion coupling piece 46 and sleeve 16.Screw thread extending body 44 cooperates accessory 42 is secured to conversion coupling piece 46 with the internal surface of conversion coupling piece 46.Sealing gasket 48 (for example O shape ring) and sealing gasket 50 (for example O shape ring) provide conversion coupling piece 46 and accessory 42 respectively and change coupling piece 46 and be connected with fluid-tight between the sleeve 16.The fluid that floss hole 52 (can select screw thread) provides fluid output and/or leaks by the automatic measuring unit monitoring.

The working method of tubing containment system 40 is similar to pipe-line system 10.If occur in the pipeline 12 leaking, fluid transmits along the interval between pipeline 12 and the sleeve 16.Fluid containment is discharged in conversion coupling piece 46 and by floss hole 52.

Conversion coupling piece 46 coat pipelines 12 until accessory 42 and imbrication accessory 42 to get rid of any exposure of pipeline 12.Conversion coupling piece 46 and accessory 42 preferably can use once again.

Tubing containment system can use in many application, and these application comprise direct underground burial, ground outdoor use, hold and sensed system for other secondary of the indoor use of safety pressurization and petrochemical industry circuit.

Illustrate and described preferable embodiment of the present invention above, but can make various modifications and replacement to the present invention and do not break away from its spirit and scope.Therefore, be understandable that the description of this invention only is example explanation and unrestricted.

Claims

1. pipe-line system comprises:

The impermeable sleeve of fluid, it has some ribs that are formed on the interval of the lengthwise on the described sleeve interior surface;

Be positioned at the corrugated fluid transmission pipe of described sleeve;

Coupling piece with first end and second end, described first end has the internal thread that cooperates with described sleeve outer surface;

Described coupling piece has the floss hole that is communicated with the outer surface fluid of the described inside of described sleeve and described sleeve;

Metal fittings, it is fixed on the outer surface of described pipeline and is attached to the internal surface of described coupling piece.

2. pipe-line system as claimed in claim 1 is characterized in that described sleeve is a polymer.

3. pipe-line system as claimed in claim 1 is characterized in that described coupling piece is a polymer.

4. pipe-line system as claimed in claim 1 is characterized in that, described second end has shoulder, to form the backstop against described sleeve.

5. pipe-line system as claimed in claim 1 is characterized in that, described coupling piece has the hardness tester higher than sleeve.

6. pipe-line system as claimed in claim 1 is characterized in that, this pipe-line system also comprises the O shape ring of also approaching described first end in inside that is positioned at described coupling piece.

7. pipe-line system as claimed in claim 1 is characterized in that, described pipeline is corrugated stainless steel pipeline.

8. pipe-line system as claimed in claim 1 is characterized in that, described accessory has the screw thread extending body and cooperates with the internal surface of described coupling piece at described second end.

9. pipe-line system as claimed in claim 8 is characterized in that, this pipe-line system also comprises the O shape ring between described extending body and described coupling piece.

10. pipe-line system as claimed in claim 1 is characterized in that described pipeline has shell.

11. pipe-line system as claimed in claim 10 is characterized in that, described shell is bored a hole.

12. pipe-line system as claimed in claim 1 is characterized in that, described rib has leg-of-mutton cross section.

13. pipe-line system as claimed in claim 1 is characterized in that, this pipe-line system also comprises the flexible pipe that is connected to described floss hole.

14. pipe-line system as claimed in claim 1 is characterized in that, this pipe-line system also comprises the sensor of monitoring from the fluid of floss hole discharge.