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WO2021147189A1 - Structure de segment de tuyau de débitmètre ultrasonore comportant un raccord fileté soudé - Google Patents

Structure de segment de tuyau de débitmètre ultrasonore comportant un raccord fileté soudé Download PDF

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Publication number
WO2021147189A1
WO2021147189A1 PCT/CN2020/085464 CN2020085464W WO2021147189A1 WO 2021147189 A1 WO2021147189 A1 WO 2021147189A1 CN 2020085464 W CN2020085464 W CN 2020085464W WO 2021147189 A1 WO2021147189 A1 WO 2021147189A1
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WO
WIPO (PCT)
Prior art keywords
pipe section
inner pipe
ultrasonic flowmeter
threaded joint
threaded joints
Prior art date
Application number
PCT/CN2020/085464
Other languages
English (en)
Chinese (zh)
Inventor
方欣
Original Assignee
青岛海威茨仪表有限公司
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 青岛海威茨仪表有限公司 filed Critical 青岛海威茨仪表有限公司
Publication of WO2021147189A1 publication Critical patent/WO2021147189A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/08—Casing joints
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18—Supports or connecting means for meters

Definitions

  • the utility model specifically relates to a pipe section structure of an ultrasonic flowmeter with a welded threaded joint.
  • Both ends of the threaded joint of the pipe section structure of the existing through-beam ultrasonic flowmeter are formed with external threads.
  • the external thread and the internal thread Thread glue needs to be applied between them, which is troublesome to install.
  • the outer pipe section In order to process the internal thread, the outer pipe section must reach a sufficient thickness, which causes the outer pipe section to use more materials and waste resources.
  • the required length of the threaded joint is usually close to 30mm, which causes the position of the transducer assembly in the tube to be moved and fixed to the middle of the tube, thus reducing the gap between the two transducer assemblies. Therefore, the turndown ratio of the ultrasonic flowmeter is reduced (the turndown ratio of the ultrasonic flowmeter is proportional to the projection distance of the distance between the transducer components in the direction of the water flow).
  • the utility model aims to solve the above problems and provides an ultrasonic flowmeter pipe section structure with welded threaded joints.
  • the threaded joints may loosen during installation of the equipment, it can also increase two transducers.
  • the distance in the tube between the components of the device can effectively increase the turndown ratio of the ultrasonic flowmeter.
  • the pipe section structure of an ultrasonic flowmeter with a welded threaded joint includes an outer pipe section and a threaded joint.
  • the outer pipe section is a hollow pipe body. Both sides of the outer pipe section are fixedly connected to the threaded joints.
  • the outer side of the threaded joint is formed with an outer pipe. Thread.
  • the outer pipe section is fitted with an inner pipe section
  • the inner pipe section includes a first inner pipe section and a second inner pipe section
  • two inner pipe sections are respectively provided at both ends of the first inner pipe section
  • the first inner pipe section The pipe section is butted with the second inner pipe section, and the threaded joints at both ends compress the first inner pipe section and the second inner pipe section to fix the positions of the first inner pipe section and the second inner pipe section relative to the outer pipe section.
  • a mounting seat is arranged inside the second inner pipe section, a transducer assembly is installed inside the mounting seat, the mounting seat is fixedly connected to the mounting cover, and the mounting seat is between the inner wall of the second inner pipe section and the mounting seat.
  • a bracket is provided, one end of the bracket is fixedly connected with the mounting seat, and the other end is fixedly connected with the inner wall of the second inner pipe section.
  • the mounting seat, the bracket and the second inner pipe section are integrally injection molded.
  • part or all of the transducer assembly is located inside the threaded joint.
  • one end of the threaded joint is formed with a welding protection platform and a first step
  • the second inner pipe section is formed with a first protrusion
  • the welding protection platform is an annular boss
  • the welding protection platform is inserted into the outer pipe section and Between the second inner pipe sections, the welding protection platform is in contact with the first protrusion, and the end surface of the outer pipe section is in contact with the first step and is fixed by welding.
  • a second step is formed at both ends of the first inner pipe section, and the second inner pipe section is in contact with the second step.
  • the second step is formed with a first groove
  • the end surface of the second inner pipe section is formed with a second protrusion
  • the second protrusion is inserted into the first groove
  • the threaded joint is formed with a first ring groove
  • the second inner pipe section is formed with a first ring boss
  • the first ring boss is inserted into the first ring groove
  • the first ring boss and
  • a sealing ring is arranged between the first ring grooves.
  • a lead-out groove is formed in the middle of the outer side of the first inner pipe section, and two sides of the first inner pipe section are respectively formed with coiled wire grooves, and the coiled wire groove is communicated with the lead-out groove.
  • the material of the first inner pipe section and the second inner pipe section is high temperature resistant plastic.
  • the utility model has the following advantages: only one end of the threaded joint is formed with an external thread, and the threaded joint is fixed to the outer pipe section by laser welding. There is no need to screw threads for installation and no thread glue is required.
  • the installation process is simple and convenient; the outer pipe section does not need to be processed inside.
  • Thread the outer pipe section can be made of thin-walled plate rolled pipe welded stainless steel pipe. The thin thickness requires less material and low processing cost, which solves the problem of wasting resources in the existing pipe section structure; increases the gap between the two transducer components in the pipe The distance can effectively increase the range ratio of the ultrasonic flowmeter.
  • Figure 1 The front sectional view of the structure of the utility model
  • Figure 2 A schematic diagram of the partial enlarged structure of the utility model at A;
  • Figure 3 The structure diagram of the inner pipe section and threaded joint of the present invention.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or an optional connection.
  • the ultrasonic flowmeter pipe section structure with welded threaded joints of this embodiment includes: an outer pipe section 1 and a threaded joint 4.
  • the outer pipe section 1 is a hollow pipe body, and the outer pipe section 1 The two sides are respectively fixedly connected with the threaded joint 4, and the outer side of the threaded joint 4 is formed with an external thread.
  • the threaded joint 4 and the outer pipe section 1 are both metal, and the threaded joint 4 and the outer pipe section 1 are fixed by laser welding.
  • the threaded joint 4 is connected with the pipeline through its external thread.
  • the outer pipe section 1 is fitted with an inner pipe section
  • the inner pipe section includes a first inner pipe section 2 and a second inner pipe section 3
  • the first inner pipe section 2 is provided with a second inner pipe section 3 at both ends, respectively
  • the first inner pipe section 2 is connected to the second inner pipe section 3, and the threaded joints 4 at both ends compress the first inner pipe section 2 and the second inner pipe section 3 so that the first inner pipe section 2 and the second inner pipe section 3 are opposite to the outer pipe section 1.
  • the location is fixed.
  • the outer wall of the inner pipe section is in contact with the inner wall of the outer pipe section 1.
  • a mounting seat 32 is provided inside the second inner pipe section 3
  • a transducer assembly is installed inside the mounting seat 32, the mounting seat 32 is fixedly connected to the mounting cover 33, and the mounting seat 32 is connected to the second
  • a bracket 31 is arranged between the inner walls of the inner pipe section 3, one end of the bracket 31 is fixedly connected to the mounting seat 32, and the other end is fixedly connected to the inner wall of the second inner pipe section 3.
  • the mounting seat, the bracket and the second inner pipe section are integrally molded by injection molding.
  • the space between the mounting seat 32 and the mounting cover 33 is a closed space and a sealing ring is arranged between the two to seal the transducer assembly between the two to prevent direct contact between the transducer assembly and the fluid.
  • the transducer assembly is an assembly that includes all the components required by the transducer, such as transducer ceramic chips and circuit boards.
  • part or all of the transducer assembly is located inside the threaded joint 4.
  • the mounting seat 32 protrudes out of the inside of the second inner pipe section 3 and enters the inside of the threaded joint 4, so that the distance between the two transducer components in the outer pipe section 1 is as close as possible to the pipe length of the outer pipe section 1. Increasing the distance between the transducer components can improve the accuracy of the flowmeter.
  • one end of the threaded joint 4 is formed with a welding protection platform 41 and a first step 42
  • the second inner pipe section 3 is formed with a first protrusion 36
  • the welding protection platform 41 is an annular boss
  • the welding The protection stand 41 is inserted between the outer pipe section 1 and the second inner pipe section 3, the welding protection stand 41 is in contact with the first protrusion 36, and the end surface of the outer pipe section 1 is in contact with the first step 42 and is fixed by welding.
  • the plurality of first protrusions 36 are arranged along the circumference of the center of the second inner pipe section 3, and their function is equivalent to an integral step, which cooperates with the welding protection platform 41 to play a positioning role.
  • the use of multiple first protrusions 36 can save material.
  • the welding protection table 41 shields the second inner pipe section 3 so that the second inner pipe section 3 made of plastic will not be directly exposed under the welding point during welding. In this way, the second inner pipe section 3 made of plastic is shielded by a circle of welding protection platform 41, so that the temperature of the second inner pipe section 3 will be lower during welding, and the high temperature deformation of the second inner pipe section 3 is prevented.
  • a second step 21 is formed at both ends of the first inner pipe section 2, and the second inner pipe section 3 is in contact with the second step 21.
  • the second step 21 is formed with a first groove 22, the end surface of the second inner pipe section 3 is formed with a second protrusion 35, and the second protrusion 35 is inserted into the first groove 22.
  • the threaded joint 4 is formed with a first annular groove 43
  • the second inner pipe section 3 is formed with a first annular boss 37
  • the first annular boss 36 is inserted into the first annular groove 43.
  • a sealing ring is provided between the first annular boss 37 and the first annular groove 43.
  • a lead-out groove 24 is formed in the middle of the outer side of the first inner pipe section 2, and two sides of the first inner pipe section 2 are respectively formed with coiled grooves 23, and the coiled grooves 23 and the lead-out grooves 24 are communicated with each other.
  • a channel 311 is formed inside the bracket 31. The lead wire of the transducer assembly in the mounting seat 32 passes through the channel 311, then passes through the channel between the two first protrusions 36, and finally passes through the wire slot 23 to the lead slot 24.
  • the lead wire in the lead-out groove 24 is too long at this time, lay the lead wire through the lead-out groove 24 to the other side of the wire slot 23, then fold the lead wire back into the lead-out slot 24, and lower the lead wire in the lead-out slot.
  • the length of the groove 24, and finally the lead wire enters the meter body 7 from the connection hole 11 of the outer tube section 1 to connect to the circuit board in the meter body 7.
  • the material of the first inner pipe section 2 and the second inner pipe section 3 is high temperature resistant plastic.
  • the temperature of the lower part of laser welding is about 100°C, and the deformation temperature of the high-temperature resistant plastic is 150°C. The first inner pipe section 2 and the second inner pipe section 3 will not be deformed at high temperature.
  • the threaded joint 4 is an externally threaded stainless steel structure metal head, which can be processed separately and conveniently with a small machine tool;
  • the outer pipe section 1 is a thin-walled plate coiled pipe welded stainless steel pipe, which is low in price.
  • the first step 42 of the other threaded joint 4 is in contact with the end surface of the outer pipe section 1, and the threaded joint 4 applies axial pressure to the inner pipe section.
  • the second threaded joint 4 is fixed to the outer pipe section 1 by laser welding.
  • the relative rotation between the second inner pipe section 3 and the threaded joint 4 is restricted by the frictional force of the end surface.
  • Use a tool such as a hook to extend into the connecting hole 11 to hook the lead of the transducer assembly from the lead-out slot 24.
  • the present utility model is described above by way of examples, but the present utility model is not limited to the above-mentioned specific embodiments, and any changes or modifications made based on the utility model belong to the scope of protection claimed by the present utility model.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Volume Flow (AREA)

Abstract

La présente invention concerne une structure de segment de tuyau de débitmètre ultrasonore comportant un raccord fileté soudé, comprenant un segment de tuyau externe (1) et un raccord fileté (4). Le segment de tuyau externe est un corps de tuyau creux ; les deux côtés du segment de tuyau externe sont raccordés séparément et à demeure au raccord fileté ; des filetages externes sont formés sur le côté externe du raccord fileté. Le raccord fileté est fixé au segment de tuyau externe au moyen d'un soudage au laser, des filetages et une colle pour filetage ne sont pas nécessaires pour le reccordement, et un procédé de montage est simple et pratique. Il n'est pas nécessaire d'usiner des filetages internes sur le segment de tuyau externe et, par conséquent, le segment de tuyau externe peut être un tuyau en acier inoxydable à joint de soudage de tuyau à plaque à paroi mince, et le coût d'usinage est faible ; de plus, cette structure peut en outre augmenter une distance de montage entre des composants de transducteur, et fournit une solution économique et rapide pour un dispositif de mesure de base à débitmètre ultrasonore avec un rapport de plage de mesure élevé.
PCT/CN2020/085464 2020-01-21 2020-04-18 Structure de segment de tuyau de débitmètre ultrasonore comportant un raccord fileté soudé WO2021147189A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020139961.1U CN211648125U (zh) 2020-01-21 2020-01-21 具有焊接螺纹接头的超声波流量计管段结构
CN202020139961.1 2020-01-21

Publications (1)

Publication Number Publication Date
WO2021147189A1 true WO2021147189A1 (fr) 2021-07-29

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559938B1 (fr) * 1992-03-11 1993-10-27 Siemens Aktiengesellschaft Débitmètre à ultrasons pour des liquides
KR20100122068A (ko) * 2010-10-19 2010-11-19 문동춘 기초보강 확공압밀 인발주입공법
CN202710128U (zh) * 2012-06-20 2013-01-30 杨学刚 一种水表表壳
CN206440317U (zh) * 2017-01-23 2017-08-25 青岛海威茨仪表有限公司 一种对射式小口径超声波流量计
CN107676047A (zh) * 2017-10-19 2018-02-09 东营威玛石油钻具有限公司 一种井眼整形功能型钻杆
CN208223575U (zh) * 2018-05-21 2018-12-11 青岛海威茨仪表有限公司 一种直管式便于安装的小口径超声波流量计管段结构
CN110439477A (zh) * 2019-07-18 2019-11-12 中国石油天然气集团有限公司 一种强度错配的双层组合套管

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559938B1 (fr) * 1992-03-11 1993-10-27 Siemens Aktiengesellschaft Débitmètre à ultrasons pour des liquides
KR20100122068A (ko) * 2010-10-19 2010-11-19 문동춘 기초보강 확공압밀 인발주입공법
CN202710128U (zh) * 2012-06-20 2013-01-30 杨学刚 一种水表表壳
CN206440317U (zh) * 2017-01-23 2017-08-25 青岛海威茨仪表有限公司 一种对射式小口径超声波流量计
CN107676047A (zh) * 2017-10-19 2018-02-09 东营威玛石油钻具有限公司 一种井眼整形功能型钻杆
CN208223575U (zh) * 2018-05-21 2018-12-11 青岛海威茨仪表有限公司 一种直管式便于安装的小口径超声波流量计管段结构
CN110439477A (zh) * 2019-07-18 2019-11-12 中国石油天然气集团有限公司 一种强度错配的双层组合套管

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