WO2017032710A1 - Dispositif de régulation de vitesse - Google Patents

Dispositif de régulation de vitesse Download PDF

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Publication number
WO2017032710A1
WO2017032710A1 PCT/EP2016/069702 EP2016069702W WO2017032710A1 WO 2017032710 A1 WO2017032710 A1 WO 2017032710A1 EP 2016069702 W EP2016069702 W EP 2016069702W WO 2017032710 A1 WO2017032710 A1 WO 2017032710A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner shell
shell
recess
outer shell
limiting element
Prior art date
Application number
PCT/EP2016/069702
Other languages
German (de)
English (en)
Inventor
Ralf Vetterer
Andrej Kolmakov
Original Assignee
NDT Global Corporate Ltd. Ireland
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 NDT Global Corporate Ltd. Ireland filed Critical NDT Global Corporate Ltd. Ireland
Publication of WO2017032710A1 publication Critical patent/WO2017032710A1/fr

Links

Classifications

    • 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
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles
    • 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
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
    • 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
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
    • G01M3/246—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes using pigs or probes travelling in the pipe

Definitions

  • the present invention relates to a device for speed control, in particular for a pig used in pipeline inspections.
  • Pipelines are used in many areas for the transport of fluids.
  • the pipeline to be examined can be tested non-destructively and in situ, for example by means of ultrasound or eddy current.
  • an assembly of ultrasonic sensors and sensors is mounted on a so-called pig and the pig used in the line. The pig then moves through the pipeline and receives the sensor signals as a function of the distance covered. After completion of the examination, the stored sensor signals can be read out and analyzed.
  • Such a pig can be driven independently and / or passively through a fluid flowing through the pipeline to be inspected.
  • various mechanisms have already been proposed to control the velocity of the pig in the pipeline - from a simple brake to adjustable bypass ports which allow some of the fluid to pass or pass through the pig in a controlled manner.
  • a first aspect of the invention relates to a device for
  • Speed control of a system for pipe testing comprising an outer shell, a first inner shell and a second inner shell, wherein the first inner shell has at least one recess, the second inner shell has at least one recess and the outer shell has at least one recess, wherein the first inner shell and the second inner shell are each adjustable relative to the outer shell.
  • the first inner shell may, at least partially, be arranged in the outer shell.
  • the second inner shell may, at least partially, be arranged in the first inner shell.
  • the first inner shell may have at least one delimiting element which delimits the at least one recess of the first inner shell.
  • the second inner shell may have at least one delimiting element which delimits the at least one recess of the second inner shell.
  • the outer shell may have at least one delimiting element that delimits the at least one recess of the outer shell.
  • At least one of the at least one recess of the first inner shell can in each case be larger than a delimiting element of the first inner shell.
  • Each of the recesses of the first inner shell is preferably larger than a limiting element of the first inner shell delimiting this recess.
  • at least one of the at least one recess of the second inner shell can each be larger than a delimiting element of the second inner shell.
  • Each of the recesses of the second inner shell is preferably larger than a limiting element of the second inner shell delimiting this recess.
  • at least one of the at least one recess of the outer shell can each be larger than a delimiting element of the outer shell.
  • each of the recesses of the outer shell is preferably larger than a limiting element of the outer shell delimiting this recess.
  • At least one of the at least one recess of the first inner shell can each be substantially twice as large as a delimiting element of the first inner shell.
  • each of the recesses of the first inner shell about twice as large as the respective recess limiting limiting element of the first inner shell.
  • the at least one of the at least one recess of the second inner shell can each in
  • At least one of the at least one recess of the outer shell may further each be substantially twice as large as a limiting element of the outer shell, wherein preferably each of the recesses of the outer shell twice as large as a respective recess bounding limiting element of the outer shell.
  • the at least one recess of the first inner shell can each in
  • each of the recesses of the first inner shell is in
  • the at least one recess of the first inner shell may be substantially the same size as the at least one recess of the
  • each of the recesses of the first inner shell is substantially the same size as a corresponding recess of the outer shell.
  • the at least one limiting element of the first inner shell can each be substantially the same size as the at least one
  • Limiting element of the second inner shell and / or the at least one limiting element of the outer shell is a limiting element of the second inner shell and / or the at least one limiting element of the outer shell.
  • Terms such as larger, smaller or the same size preferably refer to the actual (in the case of the limitations) or fictitious (in the case of the recesses) (shell) surface of the respective shell. In other words, these terms preferably refer to the surface opposite to the fluid (in the case of its limitations) or through which the fluid flows. Alternatively, however, these terms can also refer to projections of the elements set in relation, for example along a specific (rotary) axis or shaft.
  • the at least one delimiting element of the first inner shell may extend from a hub of the first inner shell, preferably to the edge of the first inner shell, extend.
  • the at least one boundary element of the second inner shell may extend from a hub of the second inner shell, preferably to the edge of the second inner shell.
  • Limiting element of the outer shell of a hub of the outer shell preferably to the edge of the outer shell extend.
  • the first inner shell, the second inner shell and the outer shell are preferably arranged on a common axis and can be rotated about this axis relative to each other.
  • a pipe inspection system in particular a pig, comprises a device for
  • Figure 1 shows two perspective views of an embodiment of a speed control apparatus of a pipe inspection system according to the present invention
  • Figures 1 a and 1 b show a back and a front view of the device shown in Figure 1.
  • Figure 2 shows a side view of an outer shell according to an embodiment of the invention
  • FIG. 2a shows a front view of the outer shell shown in FIG.
  • Figure 3 shows a side view of a first inner shell according to a
  • FIG. 3a shows a front view of the first inner shell shown in FIG.
  • Figure 4 shows a side view of a second inner shell according to a
  • FIG. 4a shows a front view of the second inner shell shown in FIG. Detailed description
  • FIGS. 1, 1a and 1b Velocity control of a system for pipeline testing, in particular of a pig, is shown in FIGS. 1, 1a and 1b.
  • the device 10 comprises an outer shell 20, a first inner shell 30 and a second inner shell 40, which are shown individually in FIGS. 2 / 2a, 3 / 3a and 4 / 4a respectively.
  • the second inner shell 40 is arranged as shown in the first inner shell 30.
  • the first inner shell 30 in turn is disposed within the outer shell 20.
  • the first inner shell 30 and the second inner shell 40 are adjustable relative to one another and in each case relative to the outer shell 20.
  • Inner shell 40 each rotatable relative to the outer shell 20 about a common axis.
  • the device 10 is typically at the top of a system for
  • Pipe inspection in particular a pig, mounted (not shown) and is flowing from the flowing through the pipe fluid from the back. Due to the adjustability of the shells 20, 30, 40 relative to each other by the device 10, the oncoming fluid opposite surface and thus the propulsion of the system is adjustable. In the specific case of a pig consisting of several modules, the device 10 is typically at the foremost module, the
  • train module arranged.
  • the principle is that the
  • the speed of the pig can be regulated by increasing or decreasing the bypass of the medium.
  • the outer shell 20 shown in Figures 2 and 2a comprises three
  • Limiting elements 22 which extend from a hub 24 to a flange-shaped edge 26 of the outer shell 20.
  • the hub 24 has a smaller diameter than the edge 26.
  • the three boundary elements 22 therefore run towards the hub 24 and taper towards the hub 24.
  • the three limiting elements 22 define three recesses 28 in the
  • the limiting elements 22 and the recesses 28 are arranged substantially symmetrically about the hub 24 forming an axis.
  • the limiting elements 22 are each about the same size, and the recesses 28 are also each about the same size.
  • Each of the recesses 28 is larger in the figure 2 and in this example approximately twice as large as each of the limiting elements 22 is formed.
  • delimiting elements 22 and the recesses 28 and also the entire surface of the outer shell 20 are possible as well as other absolute and relative sizes of these elements.
  • the first inner shell 30 shown in FIGS. 3 and 3 a has a similar structure compared to the outer shell 20. However, the first inner shell 30 is made slightly smaller in its outer dimensions so that it can be inserted into the outer shell 20.
  • the first inner shell 30 accordingly also comprises three limiting elements 32, which extend from a hub 34 to an edge 36 of the first inner shell 30.
  • the hub 34 has a smaller diameter than the rim 36.
  • the three limiting elements 32 also run towards the hub 34 and taper towards the hub 34, as a result of which they delimit three recesses 38, which likewise taper towards the hub 34, in the first inner shell 30.
  • the first inner shell 30 comprises a coupling element 39 adjoining the hub 34 toward the interior, which is arranged to engage with the coupling element 29 of the outer shell 20
  • the second inner shell 40 shown in FIGS. 4 and 4a likewise has a similar structure compared to the outer shell 20 or the first inner shell 20. However, the second inner shell 40 is slightly smaller in size than both the outer shell 20 and the first inner shell 30 are made to be inserted into the first inner shell 30 as shown in FIG.
  • the second inner shell 40 thus likewise comprises three limiting elements 42, which extend from a hub 44 to an edge 46 of the second inner shell 40.
  • the three limiting elements 42 also run towards the hub 44, taper towards the hub 44 and define three recesses 48 in the second inner shell 40.
  • the second inner shell 40 comprises a coupling element 49 which adjoins the hub 44 towards the interior and which is arranged for this purpose is to cooperate with the coupling element 29 of the outer shell 20 to also rotatably support the second inner shell 40 on the outer shell 20.
  • the respective limit members 22, 32, 42 are substantially (taking into account the fact that the cups are nested) the same shape and size.
  • the recesses 28, 38, 48 are substantially (taking into account the fact that the trays are nested) the same shape and size.
  • Outer shell 20 is thus larger and preferably substantially twice as large as / as a respective delimiting element 32 of the first inner shell 30 or delimiting element 42 of the second inner shell 40
  • a maximum flow resistance is thus presented to the inflowing fluid, which leads to a maximum propulsion of the pig.
  • the principle is that the speed of the pig can be regulated by increasing or decreasing the bypass of the medium. The larger the bypass on the tensile module, the larger the Speed difference between medium and pig.
  • the first inner shell 30 and the second inner shell 40 there is thus a minimal speed difference between the medium and the pig.
  • the first inner shell 30 and the second inner shell 40 can be rotated relative to the outer shell 20 so that the boundary elements 32, 42 of the first and second inner shell can be brought into coincidence with the boundary elements 22 of the outer shell 20.
  • a minimal flow resistance is thus presented to the inflowing fluid, which leads to a minimum propulsion of the pig.
  • the principle applies that the larger the bypass on the tensile modulus, the greater the speed difference between the medium and the pig.
  • the first inner shell 30 and the second inner shell 40 there is thus a maximum speed difference between medium and pig - so the pig moves (substantially) slower through the line than the medium.
  • the propulsion of the pig can thus be controlled easily but at the same time over a wide range or depending on (detected) parameters such as the absolute speed of the pig or the fluid or Regulate relative velocity between pig and fluid.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Dispositif pour réguler la vitesse d'un système de contrôle de tuyaux, ce dispositif comprenant une coque extérieure, une première coque intérieure et une seconde coque intérieure, la première coque intérieure présentant au moins un évidement, la seconde coque intérieure présentant au moins un évidement et la coque extérieure présentant au moins un évidement, la première coque intérieure et la seconde coque intérieure pouvant être chacune déplacées par rapport à la coque extérieure.
PCT/EP2016/069702 2015-08-21 2016-08-19 Dispositif de régulation de vitesse WO2017032710A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015113920.0 2015-08-21
DE102015113920.0A DE102015113920A1 (de) 2015-08-21 2015-08-21 Vorrichtung zur Geschwindigkeitssteuerung

Publications (1)

Publication Number Publication Date
WO2017032710A1 true WO2017032710A1 (fr) 2017-03-02

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ID=56852237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/069702 WO2017032710A1 (fr) 2015-08-21 2016-08-19 Dispositif de régulation de vitesse

Country Status (2)

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DE (1) DE102015113920A1 (fr)
WO (1) WO2017032710A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106931180B (zh) * 2017-03-31 2024-01-09 中国石油化工股份有限公司天然气分公司 用于输气管道内检测器的调速阀

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097537A (en) * 1981-04-27 1982-11-03 British Gas Corp A pipeline inspectioon vehicle
US5208936A (en) * 1991-05-09 1993-05-11 Campbell Douglas C Variable speed pig for pipelines
WO1997017566A1 (fr) * 1995-11-08 1997-05-15 Smart Pipeline Services Limited Appareil destine a etre utilise dans un pipeline
GB2326209A (en) * 1997-06-12 1998-12-16 British Gas Plc Fluid propelled pipeline pig with controlled fluid by-pass

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10151553A1 (de) * 2001-10-23 2003-04-30 Motan Materials Handling Gmbh Verfahren und Vorrichtung zur Reinigung von pneumatischen Förder-leitungen mit einem Bypass-Molch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097537A (en) * 1981-04-27 1982-11-03 British Gas Corp A pipeline inspectioon vehicle
US5208936A (en) * 1991-05-09 1993-05-11 Campbell Douglas C Variable speed pig for pipelines
WO1997017566A1 (fr) * 1995-11-08 1997-05-15 Smart Pipeline Services Limited Appareil destine a etre utilise dans un pipeline
GB2326209A (en) * 1997-06-12 1998-12-16 British Gas Plc Fluid propelled pipeline pig with controlled fluid by-pass

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