GB2513759A - Improved safety shield for a pipe joint - Google Patents

Improved safety shield for a pipe joint Download PDF

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Publication number
GB2513759A
GB2513759A GB1413239.3A GB201413239A GB2513759A GB 2513759 A GB2513759 A GB 2513759A GB 201413239 A GB201413239 A GB 201413239A GB 2513759 A GB2513759 A GB 2513759A
Authority
GB
United Kingdom
Prior art keywords
pipe joint
shield
gas
closeable
sealing
Prior art date
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.)
Granted
Application number
GB1413239.3A
Other versions
GB2513759B (en
GB201413239D0 (en
Inventor
David Gooding
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THERMAFLUE SYSTEMS Ltd
Original Assignee
THERMAFLUE SYSTEMS Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by THERMAFLUE SYSTEMS Ltd filed Critical THERMAFLUE SYSTEMS Ltd
Priority to GB201413239A priority Critical patent/GB2513759B/en
Publication of GB201413239D0 publication Critical patent/GB201413239D0/en
Publication of GB2513759A publication Critical patent/GB2513759A/en
Application granted granted Critical
Publication of GB2513759B publication Critical patent/GB2513759B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/003—Auxiliary devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L35/00—Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
    • F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
    • F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
    • F16L55/172—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

A shield (1) for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body (2) and at least three sealing or closing means (3), wherein the closeable or sealable pliable body (2) comprises an inner part (4), a middle part (5) made of a polymer coated glass cloth and an outer part (6) made of polymer coated glass cloth, wherein the thickness of the middle part (5) is at least twice as much when compared with the thickness of the outer part (6).

Description

IMPROVED SAFETY SHIELD FOR A PIPE JOINT
Field of the Invention
[0001] The present invention relates to a high pressure resistant safety shield for a pipe joint carrying a pressurized fluid or gas.
Background of the Invention
[0002] Over the years, various types of high pressure resistant safety shields have been proposed, such as systems consisting of more shroud to members releasably joined to form an enclosed chamber
Summary of the Invention
[0003] In case of failing pipe joints causing a leak, a spray-out of pressurized, often toxic, corrosive and dangerous liquids and gases can occur.
Such spray-outs can have catastrophic effects, in many cases resulting in fire or explosions causing considerable plant down time, capital expenditure and even loss of life. It is an objection of the present invention to prevent such explosions and fires by allowing the pressure to dissipate within the safety shield.
[0004] Problems of prior art safety shields include that they are not able to withstand pressures higher than nominal pump transmission pressures, as they do not allow the pressure to dissipate. In addition to this, the construction of prior art safety shields is highly specialized and technically complex. Another disadvantage of the prior art safety shields is that they are relatively expensive.
[0005] The present invention overcomes these problems by providing a safety shield comprising a pliable body, which is able to withstand high hydraulic pressures up to 4,000 psi and absorb a fluid or gas burst failure up to 27,000 mm2 and, at the same time, is easy to be made, and relatively inexpensive.
[0006] According to the first aspect of the present invention, there is provided a shield for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body and at least three sealing or closing means wherein the closeable or sealable pliable body comprises an inner part, a middle part made of polymer coated glass cloth an outer part made of polymer coated glass cloth, characterized in that the thickness of the middle part is at least twice as much when compared with the thickness of the outer part.
[0007] According to another aspect of the present invention, there is provided a shield for a pipe joint carrying a pressurized fluid or gas as defined above, wherein the thickness of the middle part is twice as much when compared with the thickness of the outer part.
[0008] According to another aspect of the present invention, there is provided a shield for a pipe joint carrying a pressurized fluid or gas as defined above, wherein the thickness of the middle part is three times as much when compared with the thickness of the outer part. is
[0009] According to another aspect of the present invention, there is provided a shield for a pipe joint carrying a pressurized fluid or gas as defined above, wherein the polymer is chemical resistant. Materials known in the art may be used, such as silicone, PTFE, PVC, PEEK, PEI or neoprene rubber.
[0010] According to another aspect of the present invention, there is provided a shield for a pipe joint carrying a pressurized fluid or gas as defined above, wherein the pipe joint is a flange, a valve or a coupling.
[0011] According to another aspect of the present invention, there is provided a shield for a pipe joint carrying a pressurized fluid or gas as defined above, wherein the inner part is made of woven ballistic para-aramid synthetic fiber cloth.
[0012] According to another aspect of the present invention, there is provided a shield for a pipe joint carrying a pressurized fluid or gas as defined above, wherein the inner part is made of woven stainless steel mesh.
[0013] According to another aspect of the present invention, there is provided a system comprising the shield for a pipe joint carrying a pressurized fluid or gas as defined above and a pipe joint, wherein the closeable or sealable pliable body of the shield for a pipe joint carrying a pressurized fluid or gas is fixed to the pipe joint with the at least three sealing or closing means.
[0014] According to another aspect of the present invention, there is provided a system as defined above, wherein the closeable or sealable body of the shield for a pipe joint carrying a pressurized fluid or gas is fixed to the pipe joint with three sealing or closing means.
[0015] According to another aspect of the present invention, there is provided a system as defined above, wherein there are a central sealing or closing means and two end part sealing or closing means.
[0016] According to another aspect of the present invention, there is provided a system as defined above, wherein the central sealing or closing means comprises a strip made of polymer coated glass cloth and a steel slide buckle. The polymer is any chemical resistant polymer. Materials known in the art may be used, such as silicone, PTFE, PVC, PEEK, PEI or neoprene rubber. This enables the sealing or closing means to be pulled tight and resist the force of the fluid or the gas hitting the shield.
[0017] According to another aspect of the present invention, there is provided a system as defined above, wherein the two end part sealing or closing means are draw strings.
[0018] Embodiments described herein may have an advantage that the shield covers entirely a pipe joint and its pipe connections.
[0019] Another advantage is that the shield for a pipe joint carrying a pressurized fluid or gas can withstand high hydraulic pressures up to 4,000 psi and absorb fluid or gas burst failure up to 27,000 mm2. This is achieved by allowing the pressure to dissipate and the fluid or the gas to escape at zero pressure via the end parts of the closeable or sealable body, which is achieved by using a suitable and advantageous combination of materials of single parts of the shield and by an overall construction of the shield.
[0020] Another advantage is that the closeable or sealable body of the shield for a pipe joint of the present invention can be easily fixed to the pipe joint by means of closing or sealing means known in the art.
[0021] Another advantage is that the shield for a pipe joint of the present invention is easy to be made and is relatively inexpensive.
[0022] Another advantage is that the shield for a pipe joint of the present invention is that the material of the inner part is woven and therefore forms a barrier for liquid or gas under high pressure. The inner part is designed to withstand high impact forces. The liquid or the gas that do not penetrate are is dissipated, change their direction and lose its velocity The middle part made of polymer coated glass cloth then acts as a reliable barrier for the liquid or gas which have penetrated. The outer part made of polymer coated glass cloth acts as a waterproof, flame retardant and weather resistant barrier.
[0023] Another advantage is that the central closing or sealing means resist the force of the impact so that the shield does not open when it is exposed to high pressurized liquids or gases.
[0024] Another advantage is that the end part closing or sealing means act as sealing or closing means allowing excess pressure to dissipate out.
[0025] Other aspects are as set out in the claims herein.
Brief Description of the Drawings
[0026] For a better understanding of the invention and to show how the same may be carried into effect, there will now be described by way of example only, specific embodiments, methods and processes according to the present invention with reference to the accompanying drawings in which: [0027] Figure 1 illustrates a part of a shield for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body and two sealing or closing means.
[0028] Figure 2 illustrates a part of a shield for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body and two sealing or closing means.
[0029] Figure 3 illustrates a shield for a pipe joint carrying a pressurized io fluid or gas, comprising a closeable or sealable pliable body and three sealing or closing means.
[0030] Figure 4 illustrates a system comprising a pipe joint and a shield for a pipe joint carrying a pressurized fluid or gas comprising a closeable or is sealable pliable body.
[0031] FigureS illustrates a system comprising a pipe joint and a shield for a pipe joint carrying a pressurized fluid or gas comprising a closeable or sealable pliable body and a central sealing or closing means. The figure shows a section A-A.
[0032] Figure 6 illustrates a section A-A comprising an inner part, an outer part and a middle part.
[0033] Figure 7 illustrates a section A-A comprising an inner part, an outer part and a middle part.
Detailed Description of the Embodiments
[0034] There will now be described by way of example a specific mode contemplated by the inventors. In the following description numerous specific details are set forth in order to provide a thorough understanding. It will be apparent however, to one skilled in the art, that the present invention may be practiced without limitation to these specific details. In other instances, well known methods and structures have not been described in detail so as not to
unnecessarily obscure the description.
[0035] There will now be described several different embodiments and variations of a shield for a pipe joint.
[0036] In this specification, the term "aramid" is used to describe any of a class of synthetic polyam ides that are formed from aromatic monomers.
[0037] In this specification, the term "woven ballistic para-aramid synthetic fiber cloth" is used to describe woven bulletproof para-aramid synthetic fiber cloth.
[0038] In this specification, the term "neoprene" is used to describe a is synthetic rubber made by the polymerization of chloroprene.
[0039] In this specification, the term "PVC" is used to describe polyvinylchloride.
[0040] In this specification, the term "PTFE" is used to describe polytetrafluoroethylene.
[0041] In this specification, the term "PEEK" is used to describe poly (ether ketone) [0042] In this specification, the term "PEI" is used to describe polyetherim ide.
[0043] At Figure 1 it is shown a part of a shield for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable body (2), a central sealing or closing means (3a), comprising a strip (3a') and a steel slide buckle (3a") and an end part sealing or closing means (3b), comprising two parts (3b') and (3b").
[0044] At figure 2 it is shown a part of a shield for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable body (2), a central sealing or closing means (3a) and an end part sealing or closing means (3c) comprising two parts (3c') and (3c").
[0045] At figure 3 it is shown a shield (1) for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable body (2) comprising an outer part (6) and a central closing means 3a, comprising a strip (3a') and a steel slide buckle (3a").
[0046] At figure 4 it is shown a system comprising a pipe joint (7) and a shield for a pipe joint carrying a pressurized fluid or gas comprising a closeable or sealable body (2), wherein the closeable or sealable body (2) is fixed to the pipe joint (7). is
[0047] At figure 5 it is shown a system (8) comprising a pipe joint and a shield for a pipe joint carrying a pressurized fluid or gas comprising a closeable or sealable pliable body (2), wherein the closeable or sealable body (2) is fixed to the pipe joint with closing or sealing means, including a central closing or sealing means (3a), comprising a strip (3a') and a steel slide buckle (3a"). The figure also shows a section A-A.
[0048] At figure 6 it is shown a section A-A of the closeable or sealable pliable body comprising an inner part (4), an outer part (6) and a middle part (5) made of polymer coated glass cloth, wherein the thickness of the middle part (5) is twice as much when compared with the thickness of the outer part (6).
[0049] At figure 7 it is shown a section A-A of the closeable or sealable pliable body comprising an inner part (4), an outer part (6) and a middle part (5) made of polymer coated glass cloth, wherein the thickness of the middle part (5) is three times as much when compared with the thickness of the outer part (6).
GB201413239A 2014-07-25 2014-07-25 Improved safety shield for a pipe joint Expired - Fee Related GB2513759B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201413239A GB2513759B (en) 2014-07-25 2014-07-25 Improved safety shield for a pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201413239A GB2513759B (en) 2014-07-25 2014-07-25 Improved safety shield for a pipe joint

Publications (3)

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GB201413239D0 GB201413239D0 (en) 2014-09-10
GB2513759A true GB2513759A (en) 2014-11-05
GB2513759B GB2513759B (en) 2015-05-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710709A1 (en) * 2015-02-11 2016-08-15 Brugg Rohr Ag Holding Conduit with thermal insulation.
CN111033921A (en) * 2017-08-23 2020-04-17 福斯油品欧洲股份公司 Improvements in or relating to protective coverings for conduits such as cables and/or hoses

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295669A (en) * 1977-04-11 1981-10-20 Johns-Manville Corporation Thermal insulation especially for pipe, flanges and fittings
US6164345A (en) * 2000-01-14 2000-12-26 Matrix Service, Inc. Flexible fluid containment system
GB2509834A (en) * 2013-12-20 2014-07-16 Thermaflue Systems Ltd A shield for a pipe joint carrying a pressurized fluid or gas

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5573477B2 (en) * 2010-08-09 2014-08-20 株式会社オートネットワーク技術研究所 Electric wire protection structure and method for manufacturing electric wire protection structure
JP6071457B2 (en) * 2012-11-19 2017-02-01 株式会社クボタ Polyethylene sleeve and polyethylene sleeve method
WO2014182506A1 (en) * 2013-05-10 2014-11-13 Conocophillips Company Leakage protection pads

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295669A (en) * 1977-04-11 1981-10-20 Johns-Manville Corporation Thermal insulation especially for pipe, flanges and fittings
US6164345A (en) * 2000-01-14 2000-12-26 Matrix Service, Inc. Flexible fluid containment system
GB2509834A (en) * 2013-12-20 2014-07-16 Thermaflue Systems Ltd A shield for a pipe joint carrying a pressurized fluid or gas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710709A1 (en) * 2015-02-11 2016-08-15 Brugg Rohr Ag Holding Conduit with thermal insulation.
CN111033921A (en) * 2017-08-23 2020-04-17 福斯油品欧洲股份公司 Improvements in or relating to protective coverings for conduits such as cables and/or hoses
US10958050B2 (en) 2017-08-23 2021-03-23 Fuchs Petrolub Se Protective covers for conduits such as cables and/or hoses
CN111033921B (en) * 2017-08-23 2021-07-27 福斯油品欧洲股份公司 Protective cover for cables and/or hoses

Also Published As

Publication number Publication date
GB2513759B (en) 2015-05-13
GB201413239D0 (en) 2014-09-10

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20180125 AND 20180131

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190725