CN102478141B - Magnetism positioning device for interior detection of heat exchange tube - Google Patents

Magnetism positioning device for interior detection of heat exchange tube Download PDF

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Publication number
CN102478141B
CN102478141B CN 201010558020 CN201010558020A CN102478141B CN 102478141 B CN102478141 B CN 102478141B CN 201010558020 CN201010558020 CN 201010558020 CN 201010558020 A CN201010558020 A CN 201010558020A CN 102478141 B CN102478141 B CN 102478141B
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wheel
encoder
support
magnet
detection
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CN 201010558020
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Chinese (zh)
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CN102478141A (en )
Inventor
李春树
武新军
李涛
王江源
贲安然
孙鹏飞
张培俊
郭胜
张重阳
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中国石油化工集团公司
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Abstract

换热管内检测磁性定位装置属于无损检测装置,与内检测系统配合使用,解决内检测过程中传感器对中和缺陷定位的问题。 Positioning the heat exchange means is a lossless detection of magnetic detection means and the detection system used in conjunction with the detection process to solve the problem of sensor location and defects. 本发明由支撑单元、对中单元、编码定位单元和吸附单元组成。 The present invention comprises a support element for the unit, positioning unit and the suction coding units. 底板作为支撑中心,中间有中心孔,两侧装有扶手;对中单元有支撑架和对中轮通过支撑轴连接而成;编码定位单元由穿有扭簧的销轴、支座和编码器组成;吸附单元的磁铁盒和永久磁铁用螺钉固定在底板上。 As the center of the support plate, the intermediate with a central hole, with both sides of the handrail; pairs and connected to each unit with a support frame via a support shaft of the wheel; encoded by the positioning means through a torsion spring pin, bearing and encoder composition; magnet cartridge adsorption unit and a permanent magnet fixed to the base with screws. 本发明结构简单灵活,可用于换热管内检测时传感器的定位和对中。 Simple and flexible structure of the present invention, the heat exchange can be used for detection and localization of the sensor.

Description

换热管内检测磁性定位装置 Positioning the heat exchange means of the magnetic detector

技术领域 FIELD

[0001 ] 本发明属于管道检测装置,特别涉及一种换热管内检测磁性定位装置。 [0001] The present invention pertains to pipe inspection apparatus, particularly to a heat transfer tubes positioned within the magnetic detecting means.

背景技术 Background technique

[0002] 换热管的状况直接关系到换热设备的长期、安全和稳定生产,受检测环境的限制,对换热管内检测只能采取从内部检测的方式。 [0002] heat exchange tubes is directly related to the long-term, safe and stable production of heat transfer equipment, limited by environmental detection, detection of the heat exchange can only take the form of detection from within. 目前对换热管内检测方式主要有漏磁、超声、涡流等方法。 Detection of the heat exchange present embodiment mainly leakage magnetic, ultrasonic, eddy current or the like. 在上述的检测方法实施时,检测传感器的对中和缺陷定位是需要解决的关键问题。 When the above-described detecting method embodiment, and defects of the registration detection sensor is a key problem to be solved. 传感器的对中性能好,可以减小震动,降低检测信号背景噪声,防止漏检。 Good performance of the sensor, the vibration can be reduced, reducing the background noise detection signal to prevent undetected. 同时传感器检测出的缺陷需要精确定位,以便以后的维护。 Defect detected while the sensor requires accurate positioning, for future maintenance. 已有的解决方法主要是利用电动推拔器,该方法可以通过机械和电路控制实现传感器的自动定位和对中,但是存在设备体积庞大,对中复杂,成本较高等问题,限制了在现场的应用。 Conventional solution is the use of an electric taper, the method may be implemented on the automatic positioning of the sensor and by mechanical and circuit control, but there is a large volume of equipment, for complex, high cost and other issues, limits the field of application.

发明内容 SUMMARY

[0003] 本发明所要解决的技术问题是:提供一种换热管内检测磁性定位装置。 [0003] The present invention solves the technical problem are: to provide a means of heat transfer tubes positioned within the magnetic detector. 解决换热管内检测中传感器对中和缺陷定位的问题,结构简单,方便可靠。 Solve the problem of the heat exchange and detecting defects in the sensor positioning, simple structure, convenient and reliable.

[0004] 本发明的技术方案是: [0004] aspect of the present invention is:

[0005] 一种换热管内检测磁性定位装置,其特征在于:铝材制成的底板上有中心孔,底板上表面的一侧有支座,支座上由销轴轴连接编码器,在销轴上有连接编码器和支座之间的扭簧,编码器上部轴连接编码轮,底板上表面的另一侧有支撑架,支撑架上端通过支撑轴轴连接对中轮,对中轮的垂直切线与底板上中心孔的中心线重合,编码器的编码轮轴心和对中轮的轴心平行,扭簧的扭矩则保证编码轮压紧对中轮,使用时两轮同时转动,编码器确定传感器的定位;对中轮外周圈表面上有一圈凹形槽,底板下表面的两个相对的两侧上分别各有第一磁铁盒、第二磁铁盒;第一磁铁盒和第二磁铁盒内有永久磁铁。 Inner [0005] A magnetic positioning means detecting heat transfer tubes, wherein: the base plate has a central hole made of aluminum, with a side of the upper surface of the support plate, the support pin is connected by a shaft encoder, in there torsion spring connected between the pin and the seat of the encoder, the encoder side of an upper portion of the other shaft encoder wheel is connected, on the floor surface with a support frame connected to the upper end of the support frame through a support shaft of the wheel, the wheel pairs the vertical tangent to the center line coincides with the central hole of the bottom plate, the encoder encoding the axle center and parallel to the axis of the wheel, the torque of the torsion spring to ensure that the pinch wheel encoder wheel, rotate simultaneously using two encoding determines the positioning of the sensor; circle concave surface of the ring groove in the outer periphery of the wheel, respectively, each have a first magnet cartridge, the second magnet cartridge on two opposite sides of the lower surface of the bottom plate; a first magnet and a second cassette magnet permanent magnet cartridge.

[0006] 底板上表面的两侧上各有扶手。 [0006] on the base plate on both side surfaces of each armrest.

[0007] 本发明效果是: [0007] The effect of the present invention is:

[0008] 换热管内检测磁性定位装置,该装置具有结构简单、浮动余量大、运动灵活的特点,可应用于换热管的内检测。 Detecting the [0008] heat exchange tubes of the magnetic positioning means, which has a simple structure, large floating balance, motion and flexible, and can be applied to the detection of the heat transfer tubes. 解了决换热管内检测中传感器对中和缺陷定位的问题,结构简单,方便可靠。 Solutions of the problem depends on the heat transfer tubes and detecting defects in the sensor positioning, simple structure, convenient and reliable.

附图说明 BRIEF DESCRIPTION

[0009] 图1是换热管内检测磁性定位装置的主视图的剖视图 [0009] FIG. 1 is a cross-sectional view of a front view of the heat exchange means of the detection of magnetic positioning

[0010] 图2是换热管内检测磁性定位装置的俯视图 [0010] FIG. 2 is a plan view of the heat exchange means of the positioning of the magnetic detector

[0011] 图3是换热管内检测磁性定位装置的仰视图 [0011] FIG. 3 is a bottom view of the heat exchange means of the positioning of the magnetic detector

具体实施方式 Detailed ways

[0012] 一种换热管内检测用磁性定位装置,由支撑单元、对中单元、编码定位单元和吸附单元组成。 Inner [0012] A heat transfer tube for detecting magnetic positioning means comprises a support element for the unit, positioning unit and the suction coding units. 所述的支撑单元包括底板和两侧的扶手,扶手通过螺母与底板连接,且底板中心有通孔;所述的对中单元包括支撑架、支撑轴和对中轮,且通过螺钉与底板连接,对中轮上有凹形槽;所述的编码定位单元包括支座和编码器,通过装有扭簧的支撑轴安装在编码器底座上,编码器底座通过螺钉固定在底板上;所述的吸附单元包括磁铁盒和永久磁铁,永久磁铁由磁铁盒包住,通过螺钉固定于底板上。 Said support means comprises a base and sides of the handrail, the handrail is connected with the base plate by a nut, and the bottom plate has a through hole; said alignment means includes a support frame, and a support shaft of the wheel, and connected with the base plate by screws , to have a concave groove in the wheel; encoding said positioning unit comprises a support and an encoder, via a support shaft provided with a torsion spring mounted on the base of the encoder, the encoder mount fixed to the base by a screw; the the adsorption unit comprises a magnet cartridge and the permanent magnet, the permanent magnet by the magnet live PACKER, is fixed by screws on the bottom plate.

[0013] 如图1、2、3所示,支撑单元由带有中心孔的底板I和第一扶手19和第二扶手22连接而成;第一、第二扶手末端有螺纹,与底板通过螺母12和弹性垫圈13连接。 [0013] FIG, 2, 3, the support unit is connected by a bottom plate and a first armrest I with a center hole 19 and the second armrest 22 formed; a first, threaded end of a second armrest, and the bottom plate by elastic washer 12 and nut 13. 底板I使用铝材,减轻支撑单元的质量,同时避免被吸附单元磁化。 I use aluminum plate to reduce the mass of the support unit, the adsorption unit while avoiding being magnetized.

[0014] 对中单元21由支撑架9、带有凹槽的对中轮7组成,对中轮7通过支撑轴8安装在支撑架9上;底板I上有螺纹孔,通过螺栓10和平垫圈11将支撑架9固定在底板I上,此时对中轮7的切线与底板I上中心孔的中心线重合,实现传感器的对中。 [0014] The unit 21 in the support bracket 9, with a recess 7 of the wheel consisting of the wheel 7 is mounted on the support frame 9 via a support shaft 8; a threaded hole on the base plate I, by means of a bolt washer 10 peace the support bracket 11 is fixed to the base plate 9 I, in this case coincides with the center line of the wheel plate and the tangent of the center hole I 7, to achieve the sensor.

[0015] 编码定位单元21由编码器5、带有螺纹孔的支座2、扭簧3、销轴4连接而成;编码器5通过扭簧3和销轴4固定在支座2的中心孔上;支座2通过螺钉17、弹性垫圈18安装在底板I上。 [0015] The encoding unit 21 is positioned by the encoder 5, the seat 2 with a threaded hole, the torsion spring 3, connected to each pin 4; encoder 3 and the pin 5 by a torsion spring 4 is fixed to the support center 2 hole; support 2 by screws 17, elastic washer 18 is mounted on the base plate I. 安装时,编码器5的编码轮6的轴线和对中轮7的轴线平行,扭簧3的扭矩则保证编码轮6压紧对中轮7,使用时两轮同时转动,编码器5确定传感器的定位。 When installed, the encoder wheel axis encoder 5 and 6 parallel to the axis of the wheel 7, the torque of the torsion spring 3 is guaranteed encoder wheel 6 rotates while pressing the wheel 7, the use of two, the encoder 5 determines the sensor positioning.

[0016] 吸附单元包括第一吸附单元和第二吸附单元,各由磁铁14、第一磁铁盒23、第二磁铁盒24组成;磁铁14由不锈钢轧制的第一、第二磁铁盒包住,并通过螺钉15和弹性垫圈16将其固定的底板I的下面。 [0016] adsorption unit comprises a first adsorption unit and a second adsorption unit, each of the magnet 14, a first magnet cartridge 23, the cartridge 24 composed of the second magnet; magnet 14 of a stainless steel rolled first, second magnet live PACKER , and by screws 15 and elastic washers 16 fixed to the base plate I below.

[0017] 实施例 [0017] Example

[0018] 本发明在使用过程中,首先吸附单元将整个装置吸附在换热管的端部上,其底板中心孔轴线与被检测换热管的中心轴线对中,此时对中轮的凹形槽的切线即与换热管中心线对中。 [0018] The present invention is in use, the entire apparatus is first adsorbed adsorption unit at the end portion of the heat transfer tubes, which plate center bore axis and the center axis of the heat exchange tubes is detected pair, in this case the recess of the wheel i.e., the tangent-shaped groove and the center line of the heat exchange tubes. 当通过推杆拉动传感器时,带动编码定位单元的编码轮转动,触发检测系统等空间采集信号,实现缺陷的空间定位。 When the plunger is pulled by a sensor, driven by the positioning unit coding encoder wheel rotates, space detection system triggering signal acquisition, spatial positioning defects.

Claims (2)

  1. 1.一种换热管内检测磁性定位装置,其特征在于:铝材制成的底板(I)上有中心孔,底板上表面的一侧有支座(2),支座上由销轴(4)轴连接编码器(5),在销轴(4)上有连接编码器和支座之间的扭簧(3),编码器上部轴连接编码轮¢),底板上表面的另一侧有支撑架(9),支撑架上端通过支撑轴(8)轴连接对中轮(7),对中轮的垂直切线与底板上中心孔的中心线重合,编码器的编码轮轴心和对中轮的轴心平行,扭簧(3)的扭矩则保证编码轮(6)压紧对中轮(7),使用时两轮同时转动,编码器(5)确定传感器的定位;对中轮外周圈表面上有一圈梯形凹槽,底板下表面的两个相对的两侧上分别各有第一磁铁盒(23)、第二磁铁盒(24);第一磁铁盒和第二磁铁盒内有永久磁铁。 A heat transfer tubes detecting the magnetic positioning apparatus, wherein: the base plate has a central hole (I) made of an aluminum material, a side surface of the base plate has a support (2), on a support by a pin ( 4) connecting the encoder shaft (5), onto the pin (4) connecting the torsion spring (3), an encoder connected to the upper shaft encoder wheel ¢) between the encoder and the seat, the other side of the upper surface of the bottom plate with a support frame (9), the upper end of the support frame via a support shaft (8) is connected to the wheel axis (7), perpendicular to the centerline tangent to the wheel center hole in the base plate coincide, the encoding of the encoder shaft and the heart of the parallel to the axis of the wheel, the torsion spring (3) to ensure that the encoder wheel torque (6) for pressing the wheel (7), while the use of two rotation encoder (5) determining the positioning of the sensor; an outer periphery of the wheel has a trapezoidal groove on the ring surface of the circle, respectively, each have a first magnet on the two opposite sides of the cartridge lower surface of the bottom plate (23), a second magnet cartridge (24); a first magnet and a second magnet cartridge with a cartridge permanent magnet.
  2. 2.根据权利要求1所述的换热管内检测磁性定位装置,其特征在于:底板上表面的两侧上各有扶手(19、 22)。 The heat transfer tubes according to a detection of magnetic positioning means as claimed in claim wherein: each armrest base plate (19, 22) on both sides of the surface.
CN 201010558020 2010-11-24 2010-11-24 Magnetism positioning device for interior detection of heat exchange tube CN102478141B (en)

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Publication number Priority date Publication date Assignee Title
JP2988168B2 (en) * 1992-12-25 1999-12-06 日立プラント建設株式会社 Piping groove automatic alignment apparatus
EP0658746A1 (en) * 1993-12-15 1995-06-21 Shell Internationale Research Maatschappij B.V. Device for carrying equipment through a conduit
US6380516B1 (en) * 1999-08-11 2002-04-30 Mitsubishi Heavy Industries, Ltd. Connecting clamp, connecting apparatus and connecting method
CN201107300Y (en) * 2007-11-28 2008-08-27 山东省特种设备检验研究院 Diffracted wave time difference method ultrasound detection sweeping check support
DE202009018746U1 (en) * 2008-12-23 2013-02-01 Rosen Swiss Ag Covering device for a tube and the tube with such a covering device

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