GB2509834A - A shield for a pipe joint carrying a pressurized fluid or gas - Google Patents

A shield for a pipe joint carrying a pressurized fluid or gas Download PDF

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Publication number
GB2509834A
GB2509834A GB1322697.2A GB201322697A GB2509834A GB 2509834 A GB2509834 A GB 2509834A GB 201322697 A GB201322697 A GB 201322697A GB 2509834 A GB2509834 A GB 2509834A
Authority
GB
United Kingdom
Prior art keywords
pipe joint
shield
pressurized fluid
gas
carrying
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
GB1322697.2A
Other versions
GB201322697D0 (en
GB2509834B (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 GB1322697.2A priority Critical patent/GB2509834B/en
Publication of GB201322697D0 publication Critical patent/GB201322697D0/en
Publication of GB2509834A publication Critical patent/GB2509834A/en
Application granted granted Critical
Publication of GB2509834B publication Critical patent/GB2509834B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/38—Investigating fluid-tightness of structures by using light
    • 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
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/20—Safety or protective couplings
    • 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
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/30—Detecting leaks

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Joints Allowing Movement (AREA)

Abstract

A shield (1) for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body (2) of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body 5 than at its ends, at least one sealing or closing means (9) and at least one indicating means (3).

Description

SAFETY SHIELD FOR A PIPE JOINT
Field of the Invention
[0001] The present invention relates to a safety shield for a pipe joint carrying a pressurized fluid or gas.
Background of the Invention
[0002] Over the years, various types of devices have been proposed, such as systems consisting of more shroud members releasably joined to form an enclosed chamber [0003] US 5,489,124 discloses a safety shield for capturing corrosive fluids escaping from joints or valves in piping systems, consisting of first and second shroud members releasably joined together to form an enclosed chamber in assembled position about the joint or valve.
[0004] US 5,470,110 discloses a shielding device having an elongate body wrapped around a pipe flange positioned in the gap area between the flanges.
[0005] The present invention overcomes these problems by providing a safety shield which is easy to be made, relatively inexpensive and includes at least one indication means.
Summary of the Invention
[0006] Problems of the prior art safety shields include that their construction is highly specialized and technically complex and that they are not able to indicate the existence of a leaking pipe joint. Another disadvantage of the prior art safety shield is that they are not able to give remote indication of leaks to plant control rooms or to other relevant places. Another disadvantage of the prior art safety shields is that they are relatively expensive.
[0007] 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 of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body than at its ends, at least one sealing or closing means and at least one indicating means [0008] According to another 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 of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body than at its ends, at least one sealing or closing means and at least one indicating means and whereby the pipe joint is a flange, a valve or a coupling.
[0009] According to another 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 of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body than at its ends, at least one sealing or closing means and at least one indicating means, whereby the indicating means comprises a sight glass, a concave disc and an indicator ball. The concave disc may have a single hole in the centre. The indicator ball may be colored to make it easily visible.
[0010] According to another 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 of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body than at its ends, at least one sealing or closing means and at least one indicating means and whereby the pliable body is made of a flexible material, such as silicone coated fiberglass, PTFE coated fiberglass or nylon.
[0011] According to another aspect of the present invention, there is provided a system comprising a shield for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body than at its ends, at least one closing or sealing means and at least one indicating means and an electronic switching system, and whereby the shield for carrying a pipe joint is linked to the electronic switching system.
[0012] Embodiments described herein may have an advantage that in case of failing pipe joints causing a leak, a spray-out of often toxic, corrosive and dangerous liquids and gases is prevented. 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.
[0013] Embodiments described herein may have another advantage that in case of failing pipe joints causing a leak, a spray-out of often toxic, corrosive and dangerous liquids and gases is prevented and the liquid or the gas enter the sight glass through the concave disc, which causes the indicator ball to rise within the concave disc and thereby disappearing from view when viewed in the horizontal plane (i.e. the indicator ball can be seen if there is no leak). In other words: indicator ball disappearing from view is an indication of a leak.
[0014] Another advantage is that the shield for a pipe joints of the present invention can be linked to an electronic switching system to give remote indication of leaks to plant control rooms or to other relevant places.
[0015] Another advantage is that the shield for a pipe joint of the present invention can be easily, tightly and in a liquid and gas proof way fixed to the pipe joint by means of a liquid and gas proof sealing means, whereby the shield fixed to the pipe joint can be linked to an electronic switching system to give remote indication of leaks to plant control rooms or to other relevant places.
[0016] Another advantage is that the shield for a pipe joint of the present invention is easy to be made and is relatively inexpensive.
[0017] Other aspects are as set out in the claims herein.
Brief Description of the Drawincis
[0018] 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: [0019] Figure 1 illustrates a shield for a pipe joint with an indicating means in case there is no leak.
[0020] Figure 2 illustrates a shield for a pipe joint with an indicating means in case there is a leak.
[0021] Figure 3 illustrates a shield for a pipe joint with two indicating means in case there is no leak.
[0022] Figure 4 illustrates a shield for a pipe joint with two indicating means in case there is a leak.
[0023] Figure 5 illustrates a shield for a pipe joint with three indicating means in case there is no leak.
[0024] Figure 6 illustrates a shield for a pipe joint with three indicating means in case there is a leak.
[0025] Figure 7 illustrates a shield for a pipe joint fixed to the pipe joint, with an indicating means in case there is no leak.
[0026] Figure 8 illustrates a shield for a pipe joint with an indicating means and with a sealing means in an unsealed state.
[0027] Figure 9 illustrates a shield for a pipe joint fixed to a pipe joint whereby the shield fixed to the pipe joint is linked to an electronic switching system.
Detailed Description of the Embodiments
[0028] 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.
[0029] There will now be described several different embodiments and variations of a shield for a pipe joint.
[0030] In this specification, the term "PTFE" is used to describe poytetrafluoroethyiene.
[0031] In this specification, the shield for a pipe joint can be closeable or sealable as depicted in Fig. 8 or in any other way known in the art.
[0032] At Figure 1, there is shown a shield (1) for a pipe joint comprising a closeable or sealable pliable body (2), an indicating means (3) with a sight glass (4) and an indicator ball (5) in case there is no leak.
[0033] At Figure 2, there is shown a shield (1) for a pipe joint comprising a closeable or sealable pliable body (2), an indicating means (3) in case there is a leak. A liquid or a gas enter the sight glass (4) through the concave disc, which causes the indicator ball to rise within the disc and thereby disappearing from view.
[0034] At Figure 3 it is shown a shield (1) for a pipe joint comprising a closeable or sealable pliable body (2), two indicating means (3) with a sight glass (4) and an indicator ball (5) in case there is no leak.
[0035] At Figure 4, there is shown a shield (1) for a pipe joint comprising a closeable or sealable pliable body (2), two indicating means (3) in case there is a leak. A liquid or a gas enter the sight glass (4) through the concave disc, which causes the indicator ball to rise within the disc and thereby disappearing from view.
[0036] At Figure 5 it is shown a shield (1) for a pipe joint comprising a closeable or sealable pliable body (2), three indicating means (3) with a sight glass (4) and an indicator ball (5) in case there is no leak.
[0037] At Figure 6, there is shown a shield (1) for a pipe joint comprising a closeable or sealable pliable body (2), three indicating means (3), in case there is a leak. A liquid or a gas enter the sight glass (4) through the concave disc, which causes the indicator ball to rise within the disc and thereby disappearing from view.
[0038] At figure 7 it is shown a shield (1) for a pipe joint comprising a closeable or sealable pliable body (2), an indicating means (3) with a sight glass (4) and an indicator ball (5) in case there is no leak, fixed to the pipe joint (6) with a liquid and gas proof sealing means (7), forming together a system (10).
[0039] At figure 8 it is shown a shield (1) for a pipe joint in an unsealed state, with a closeable or sealable pliable body (2), a concave disc (8) with a single hole in the centre of the indicating means and a sealing means (9).
[0040] At Figure 9 it is shown a device (11) comprising a shield (1) for a pipe joint fixed to a pipe joint (6) with a liquid and gas proof sealing means (7), whereby the shield fixed to the pipe joint is linked to an electronic switching system (12).
[0041] The material from which said closeable or sealable pliable body (2) is made is flexible and resistant to a wide range of chemicals and gases. Material known in the art may be used, such as silicone coated fiberglass, PTFE coated fiberglass or nylon. The closeable or sealable pliable body (2) may be made from one piece of material.
[0042] The material from which said closing or sealing means (9) is made is flexible. Material known in the art may be used, such as nylon, resin or plastic.
[0043] The material from which said liquid and gas proof sealing means (7) is made is flexible, liquid and gas proof. Material known in the art may be used, such as resin or plastic.

Claims (6)

  1. -B-Claims 1. A shield (1) for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body (2) of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body than at its ends, at least one sealing or closing means (9) and at least one indicating means (3).
  2. 2. A shield (1) for a pipe joint carrying a pressurized fluid or gas according to claim 1, whereby the pipe joint is a flange, a valve or a coupling.
  3. 3. A shield (1) for a pipe joint carrying a pressurized fluid or gas according to claims 1-2, whereby the indicating means comprises a sight glass (4), a concave disc (8) and an indicator ball (5).
  4. 4. A shield (1) for a pipe joint carrying a pressurized fluid or gas according to claims 1-3, whereby the closeable or sealable pliable body (2) is made of silicone coated fiberglass, PTFE coated fiberglass or nylon.
  5. 5. A system (10) comprising the shield (1) for a pipe joint carrying a pressurized fluid or gas according to claims 1-4 and a pipe joint (6), whereby the shield for a pipe joint carrying a pressurized fluid or gas is fixed to the pipe joint (6) with a liquid and gas proof sealing means (7).
  6. 6. A device (11) comprising the system (10) of claim 5 and an electronic switching system (12), whereby the system (10) is linked to the electronic switching system (12).Amendments to the claims have been filed as follows Claims 1. A shield (1) for a pipe joint carrying a pressurized fluid or gas, comprising a closeable or sealable pliable body (2) of a length and a width to be wrapped around the pipe joint, whereby the width is larger in the middle of the pliable body than at its ends, at least one sealing or closing means (9) and at least one indicating means (3), whereby the pipe joint is a flange, a valve or a coupling, characterized in that the indicating means comprises a sight glass (4), a concave disc (8) and an indicator ball (5).2. A shield (1) for a pipe joint carrying a pressurized fluid or gas according to claim 1, whereby the closeable or sealable pliable body (2) is made S...of silicone coated fiberglass, PTFE coated fiberglass or nylon.3. A system (10) comprising the shield (1) for a pipe joint carrying a pressurized fluid or gas according to claims 1-2 and a pipe joint (6), whereby the shield for a pipe joint carrying a pressurized fluid.or gas is fixed to the pipe joint (6) with a liquid and gas proof sealing means (7). ..:.4. A device (11) comprising the system (10) of claim 3 and an electronic switching system (12), whereby the system (10) is linked to the electronic switching system (12).
GB1322697.2A 2013-12-20 2013-12-20 Safety shield for a pipe joint Expired - Fee Related GB2509834B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1322697.2A GB2509834B (en) 2013-12-20 2013-12-20 Safety shield for a pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1322697.2A GB2509834B (en) 2013-12-20 2013-12-20 Safety shield for a pipe joint

Publications (3)

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GB201322697D0 GB201322697D0 (en) 2014-02-05
GB2509834A true GB2509834A (en) 2014-07-16
GB2509834B GB2509834B (en) 2014-12-03

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513759A (en) * 2014-07-25 2014-11-05 Thermaflue Systems Ltd Improved safety shield for a pipe joint
AU2014259495B1 (en) * 2014-07-25 2015-09-10 Fuchs Lubricants (Uk) Plc High pressure resistant safety shield for a pipe joint
USD744618S1 (en) 2014-05-06 2015-12-01 Thermaflue Systems Limited Flange shield
WO2019020719A1 (en) * 2017-07-25 2019-01-31 Minimax Viking Research & Development Gmbh Pipe arrangement consisting of a pipe or a pipe joint
CN111022771A (en) * 2019-12-11 2020-04-17 陈小风 Petroleum and natural gas conveying pipeline convenient to install
FR3091586A1 (en) * 2019-01-03 2020-07-10 Protecto Hydraulic device monitoring system, such as a water meter, with a device for detecting a water leak on the hydraulic device

Citations (4)

* 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
ES2020450A6 (en) * 1990-05-03 1991-08-01 Catalana Gas Sa Means to repair gas leaks in a pipe section when in service
US6164345A (en) * 2000-01-14 2000-12-26 Matrix Service, Inc. Flexible fluid containment system
JP2012122925A (en) * 2010-12-10 2012-06-28 Mitsubishi Electric Corp Leakage detection device and air conditioner

Patent Citations (4)

* 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
ES2020450A6 (en) * 1990-05-03 1991-08-01 Catalana Gas Sa Means to repair gas leaks in a pipe section when in service
US6164345A (en) * 2000-01-14 2000-12-26 Matrix Service, Inc. Flexible fluid containment system
JP2012122925A (en) * 2010-12-10 2012-06-28 Mitsubishi Electric Corp Leakage detection device and air conditioner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD744618S1 (en) 2014-05-06 2015-12-01 Thermaflue Systems Limited Flange shield
GB2513759A (en) * 2014-07-25 2014-11-05 Thermaflue Systems Ltd Improved safety shield for a pipe joint
GB2513759B (en) * 2014-07-25 2015-05-13 Thermaflue Systems Ltd Improved safety shield for a pipe joint
AU2014259495B1 (en) * 2014-07-25 2015-09-10 Fuchs Lubricants (Uk) Plc High pressure resistant safety shield for a pipe joint
EP2977664A1 (en) * 2014-07-25 2016-01-27 Thermaflue Systems Limited High pressure resistant safety shield for a pipe joint
WO2019020719A1 (en) * 2017-07-25 2019-01-31 Minimax Viking Research & Development Gmbh Pipe arrangement consisting of a pipe or a pipe joint
US12011627B2 (en) 2017-07-25 2024-06-18 Minimax Viking Research & Development Gmbh Pipe arrangement consisting of a pipe or a pipe joint
FR3091586A1 (en) * 2019-01-03 2020-07-10 Protecto Hydraulic device monitoring system, such as a water meter, with a device for detecting a water leak on the hydraulic device
CN111022771A (en) * 2019-12-11 2020-04-17 陈小风 Petroleum and natural gas conveying pipeline convenient to install

Also Published As

Publication number Publication date
GB201322697D0 (en) 2014-02-05
GB2509834B (en) 2014-12-03

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Free format text: REGISTERED BETWEEN 20180215 AND 20180221

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20181220