WO2013029353A1 - 一种超长设备内件的组装检测方法 - Google Patents

一种超长设备内件的组装检测方法 Download PDF

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Publication number
WO2013029353A1
WO2013029353A1 PCT/CN2012/071234 CN2012071234W WO2013029353A1 WO 2013029353 A1 WO2013029353 A1 WO 2013029353A1 CN 2012071234 W CN2012071234 W CN 2012071234W WO 2013029353 A1 WO2013029353 A1 WO 2013029353A1
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Prior art keywords
inner part
inner parts
parts
central axis
assembling
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PCT/CN2012/071234
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English (en)
French (fr)
Inventor
王雷
周伟康
王逸敏
李嫚
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上海锅炉厂有限公司
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Publication of WO2013029353A1 publication Critical patent/WO2013029353A1/zh

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    • 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
    • F16L55/48—Indicating the position of the pig or mole in the pipe or conduit

Definitions

  • the invention relates to an assembly and detection method for an ultra-long device internal component, which can be guided and applied to the assembly and measurement of an ultra-long device internal component, and belongs to the measurement technology testing technology. Background technique
  • the company is the first to produce and assemble gas cooler internals, no experience can be used for reference. Since the gas cooler internals consists of three sections, each section consists of six circular arc-shaped water-cooled wall assemblies, which are produced by two workshops; plus the reference is not uniform, the outer wall takes over more, the percussion plate is more, and the manhole More than three, the total length of the three sections is more than 30m, which causes the internal parts to be distorted and deformed during the manufacturing process.
  • the assembly of the gas cooling section belongs to the measurement node with key control.
  • the four-line coincidence and coaxiality are required to be within ⁇ 5mm, while the guiding device and the taper to the reference line have a dimensional tolerance of ⁇ 3mm and an angular tolerance of ⁇ 0.2°. .
  • the technical requirements are high, the assembly is difficult; the load weight is insufficient, and the adjustment of the internal parts is inconvenient, so the assembly of the coal gas cooler section needs to be studied. Summary of the invention
  • the object of the present invention is to provide an assembly and detection method for an ultra-long device internal component, which solves the problem of difficulty in assembling the internal components of the gas cooling section.
  • the present invention provides an assembly detection method for an ultra-long device internals, the method comprising the following specific steps:
  • Step 1 control the four centerline coincidence of each piece of internals: Place the total station and the theodolite on the left and right sides of the inner part, and lift the inner part. At the same time, lift the support roller under the inner part and rotate the inner part to adjust the position of the two center lines in the horizontal position to the horizontal level.
  • the four center lines of the internal parts of the segment correspond one-to-one;
  • Step 2 control the coaxiality of the internal parts of each segment:
  • the ball prisms 6 are evenly placed on the outer walls of the inner segments of each segment, and the coordinate coordinates of the recording ball prisms 6 are measured by the total station 4, and then calculated in the measurement software to obtain the central axes of the inner segments of the segments.
  • the central axis of the first internal part is used as a reference to view and determine the deviation of the central axis of the inner part of the rear section, and adjust the inner part of the rear section according to the deviation;
  • Step 3 again control the four centerline coincidence of each piece of internals:
  • the rear part of the rear section is lifted, and the supporting roller below the inner part of the rear section is lifted and the inner part of the rear section is rotated, and the two middle lines of the rear part inner part in the horizontal position and the first inner part are in a horizontal position.
  • the two midlines are adjusted to the same level;
  • Step 4 again control the coaxiality of each piece of internals:
  • the ball prisms are evenly placed on the outer wall of the inner part of the rear section to obtain the central axis of the inner part of the rear section, and the central axis of the inner part of the first section is used as a reference to view and determine the deviation of the central axis of the inner part of the rear section, according to Deviation adjustment of the inner part of the rear section;
  • Step 5 adjust the inner parts of the rear section according to steps 3 and 4, until the two midline positions of the sections in the horizontal position are adjusted to the horizontal contour, and the coaxiality of the central axes of each section is within the technical requirements;
  • Step 6 After the four middle line coincidence and coaxiality of the inner part meet the technical requirements, the adjusted inner parts are welded and fixed.
  • theodolite adjusts the inner piece by emitting a bundle of adjustable infrared rays parallel to the horizontal plane of the earth, so as to be located in the same ⁇
  • the horizontal line level of the horizontal position is the same.
  • Figure 1 is a schematic view of the internal structure of the gas cooler.
  • Figure 2 is a schematic diagram of the assembly inspection of the gas cooler internals.
  • Figure 3 is a schematic cross-sectional view of the gas cooler A toward the end face.
  • FIG. 1 it is a schematic diagram of the internal structure of the gas cooler.
  • the inner part of the gas cooler consists of the first inner part 1, the middle inner part 2 and the last inner part 3.
  • the total weight is 77216kg
  • the total length is 30440mm
  • the outer diameter of the water wall is ⁇ 1463 ⁇
  • the maximum outer diameter is ⁇ 2840 ⁇
  • the four middle lines are coincident and coaxial. Both are required to be within ⁇ 5mm
  • the guide and taper to the reference line have a dimensional tolerance of ⁇ 3mm and an angular tolerance of ⁇ 0.2°.
  • Cooler A is a schematic cross-sectional view of the end face, 0°, 180° in the horizontal position, 270°, 90° in the upper and lower mountains
  • the method for assembling and detecting an ultra-long device inner part of the invention comprises the following specific steps:
  • Step 1 control the four centerline coincidence of the three sections of internals:
  • the total station 4 and the theodolite 5 are respectively placed on the left and right sides of the inner piece, the total station 4 is located at 0°- ⁇ , the theodolite 5 is located at 180°- ⁇ , and the total station 4 measures the first piece of the inner piece 1 and the middle part.
  • the ground level of the 0° midline on the piece 2 and the end piece 3, the theodolite 5 records the first piece of inner part 1, the middle part of the inner part 2 and the last part by emitting a bundle of adjustable infrared rays parallel to the horizontal plane of the earth.
  • the three-section internals adjust the 0° and 180° two midline positions of the first inner part 1, the middle inner part 2 and the last inner part 3 to the horizontal contour, so that the four middle lines of the three inner parts correspond one to one;
  • Step 2 control the coaxiality of the three internal parts:
  • the ball prisms 6 are evenly placed on the outer walls of the first inner piece 1, the middle inner part 2 and the last inner part 3, and the coordinate coordinates of the recording ball prism 6 are measured by the total station 4, and then calculated in the measurement software. , obtaining the central axes of the first inner part 1, the middle inner part 2 and the last inner part 3, Z 2 , Z 3 , and viewing and determining the middle inner part 2 based on the central axis 3 ⁇ 4 of the first inner part 1
  • the deviation of the central axis Z 2 , 3 ⁇ 4 of the inner part 3 of the last section adjusts the middle part 2 and the inner part 3 of the end according to the deviation of Z 2 and Z 3 ; Step 3, again controls the four center line coincidence of the three pieces of internal parts:
  • the total station 4 again measures the level of the ground at the midline of the 0° on the inner part 2 and the inner part 3 of the middle section, and the theodolite 5 measures the inner section of the middle section by emitting a bundle of adjustable infrared rays parallel to the horizontal plane of the earth.
  • the height of the ground on the 180° midline on the end piece 3, according to the three pieces of internals The horizontal height difference between the 0° and 180° two middle lines, the middle part of the middle section of the middle section is lifted, and the inner part 3 of the last section is lifted.
  • the supporting roller under the middle part 2 and the inner part 3 of the last stage is rotated and the middle part 2 is rotated.
  • the inner part 3 of the last section adjusts the position of the 0° and 180° two middle lines of the middle inner part 2 and the last inner part 3 to the 0° and 180° two middle line positions of the upper inner part 1 to the horizontal contour;
  • Step 4 again control the coaxiality of the three internal parts:
  • the ball prism 6 is again placed evenly on the outer wall of the middle inner part 2 and the inner end inner part 3, and the coordinate coordinates of the recording ball prism 6 are measured by the total station 4, and the middle part is obtained by calculation in the measurement software. 2.
  • the central axis Z 2 , Z 3 of the inner part 3 of the last section, and the central axis 3 ⁇ 4 of the inner part 1 of the above section are used as a reference to view and determine the deviation of the central axis Z 2 of the middle inner part 2 and the inner end part 3 of the last stage, Adjusting the middle piece 2 and the end piece 3 according to the deviation of Z 2 ;
  • Step 5 according to step 3, step 4, adjust the middle inner part 2, the inner end part 3, until the 0° and 180° two middle line positions of the three inner parts are adjusted to the horizontal contour, the central axis Z 2 of the three-section inner part , Z 3 coaxiality is within the technical requirements;
  • Step 6 the four-line coincidence of the three-section internals and the coaxiality of the central axis Zl, Z2, Z3 meet the technical requirements, and the adjusted internal parts are welded and fixed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

本发明提供了一种超长设备内件的组装检测方法，用于组装检测两段以上的内件的连接，它的步骤包括反复调整各段内件的四中线重合性以及各段内件的同轴度，用以精确确定内件中心轴线的偏差，保证了装配精度，解决了煤气冷却段内件组装困难的难题。

Description

一种超长设备内件的组装检测方法
技术领域
本发明涉及一种超长设备内件的组装检测方法， 可指导和应用于超长设 备内件的装配和测量， 属于测量技术测试技术。 背景技术
公司是第一次生产并组装煤气冷却器内件， 没有经验可以借鉴。 由于煤 气冷却器内件由三段组成， 每段均为 6块圆弧形的水冷壁拼装组成， 由两个 车间进行生产； 加上基准不统一， 外壁接管多、 敲击板多、 人孔多， 三段拼 装后总长超过 30m， 造成内件在制造过程中扭曲和变形量大。 煤气冷却段的 组装属于重点控制的测量节点， 四中线重合性、 同轴度均要求在 ±5mm内， 同时导向装置、 敲击器到基准线的尺寸公差为 ±3mm， 角度公差为 ±0.2°。 技 术要求高， 组装难度大； 行车负载重量不足， 内件调整不方便， 就需要对煤 气冷却器段的组装加以研究。 发明内容
本发明的目的是提供一种超长设备内件的组装检测方法， 解决煤气冷却 段内件组装困难的难题。
为了达到上述目的， 本发明提供了一种超长设备内件的组装检测方法， 该方法包含以下具体步骤：
步骤 1， 控制各段内件的四中线重合性： 分别将全站仪和经纬仪放置在内件的左右两恻， 行车起吊内件， 同时升 降内件下方的支撑滚轮并旋转内件， 将位于水平位置的两中线位置调整至水 平等高， 使各段内件的四中线一一对应；
步骤 2， 控制各段内件的同轴度：
将球棱镜 6分别均匀放置在各段内件的外壁上， 并用全站仪 4测量记录 球棱镜 6的点位坐标， 然后在测量软件中通过计算， 得出各段内件的中心轴 线， 以首段内件的中心轴线为基准， 査看和确定后段内件的中心轴线偏差， 根据偏差调整后段内件；
步骤 3， 再次控制各段内件的四中线重合性：
利用全站仪和经纬仪， 行车起吊后段内件， 同时升降后段内件下方的支 撑滚轮并旋转后段内件， 将后段内件位于水平位置的两中线与首段内件位于 水平位置的两中线调整至水平等高；
步骤 4， 再次控制各段内件的同轴度：
将球棱镜分别均匀放置在后段内件的外壁上，得出后段内件的中心轴线， 以首段内件的中心轴线为基准， 査看和确定后段内件的中心轴线偏差， 根据 偏差调整后段内件；
步骤 5， 按照步骤 3、步骤 4调整后段内件， 直至各段位于水平位置的两 中线位置调整至水平等高， 各段中心轴线的同轴度在技术要求内；
步骤 6， 内件四中线重合性和同轴度满足技术要求后， 将调整好的各段 内件进行焊接固定。
上述的一种超长设备内件的组装检测方法， 其中， 所述的步骤 1中控制 三段内件的四中线重合性的方法中， 首段内件位于水平位置的两中线调整至 水平等高后， 首段内件需保持固定不动， 直至组装检测结束。
上述的一种超长设备内件的组装检测方法， 其中， 所述的步骤 1、步骤 3 和步骤 5中， 经纬仪通过发出一束平行于大地水平面的可调红外光线调整内 件， 使位于同恻水平位置的中线水平等高。
本发明的优点是： 1. 优化装配流程，指导完成超长设备内件（大于 30m) 的装配； 2. 能快速控制内件的四中线重合性， 并精确确定内件中心轴线的偏 差， 保证装配精度。 附图说明
图 1为煤气冷却器内件结构示意图。
图 2为煤气冷却器内件组装检测示意图。
图 3为煤气冷却器 A向端面剖视示意图。
1首段内件 2中段内件 3末段内件 4全站仪 5经纬仪 6球棱镜 具体实 式
以下结合附图详细说明本发明的具体实施方式。
实施例， 气化炉项目… -煤气冷却器内件。
如图 1所示， 为煤气冷却器内件结构示意图。 煤气冷却器内件由首段内 件 1、 中段内件 2和末段内件 3组成， 总重 77216kg, 总长 30440mm, 水冷 壁外径 Φ1463ιηιη，最大外径 Φ2840ιηιη，四中线重合性、同轴度均要求在 ±5mm 内， 同时导向装置、 敲击器到基准线的尺寸公差为 ±3mm， 角度公差为 ±0.2°。
如图 2所示， 为煤气冷却器内件组装检测示意图， 如图 3所示， 为煤气 冷却器 A向端面剖视示意图， 0°、 180°处于水平位置， 270°、 90°处于上下两 山
¾。
本发明一种超长设备内件的组装检测方法包含以下具体步骤：
步骤 1， 控制三段内件的四中线重合性：
分别将全站仪 4和经纬仪 5放置在内件的左右两恻， 全站仪 4位于 0°— 恻， 经纬仪 5位于 180°—恻， 全站仪 4测量记录首段内件 1、 中段内件 2和 末段内件 3上 0°中线上的大地水平高度， 经纬仪 5通过发出一束平行于大地 水平面的可调红外光线， 测量记录首段内件 1、 中段内件 2和末段内件 3上 180°中线上的大地水平高度， 根据三段内件 0°、 180°两中线上的大地水平高 度差， 行车起吊三段内件， 同时升降三段内件下方的支撑滚轮并旋转三段内 件， 将首段内件 1、 中段内件 2和末段内件 3的 0°、 180°两中线位置调整至 水平等高， 使三段内件的四中线一一对应；
步骤 2， 控制三段内件的同轴度：
将球棱镜 6分别均匀放置在首段内件 1、 中段内件 2和末段内件 3的外 壁上， 并用全站仪 4测量记录球棱镜 6的点位坐标， 然后在测量软件中通过 计算， 得到首段内件 1、 中段内件 2和末段内件 3的中心轴线 、 Z2、 Z3， 以首段内件 1的中心轴线 ¾为基准， 査看和确定中段内件 2、 末段内件 3中 心轴线 Z2、 ¾的偏差， 根据 Z2、 Z3的偏差调整中段内件 2、 末段内件 3 ; 步骤 3， 再次控制三段内件的四中线重合性：
全站仪 4再次测量记录中段内件 2和末段内件 3上 0°中线上的大地水平 高度， 经纬仪 5通过发出一束平行于大地水平面的可调红外光线， 再次测量 记录中段内件 2和末段内件 3上 180°中线上的大地水平高度， 根据三段内件 0°、 180°两中线上的大地水平高度差， 行车起吊中段内件 2、 末段内件 3， 同 时升降中段内件 2、末段内件 3下方的支撑滚轮并旋转中段内件 2、末段内件 3，将中段内件 2、末段内件 3的 0°、 180°两中线位置与上段内件 1的 0°、 180° 两中线位置调整至水平等高；
步骤 4， 再次控制三段内件的同轴度：
将球棱镜 6再次分别均匀放置在中段内件 2、 末段内件 3的外壁上， 并 用全站仪 4测量记录球棱镜 6的点位坐标， 在测量软件中通过计算， 得出中 段内件 2、 末段内件 3的中心轴线 Z2、 Z3， 以上段内件 1的中心轴线 ¾为基 准， 査看和确定中段内件 2、 末段内件 3中心轴线 Z2、 的偏差， 根据 Z2、 的偏差调整中段内件 2、 末段内件 3;
步骤 5， 按照步骤 3、 步骤 4调整中段内件 2、 末段内件 3， 直至三段内 件的 0°、 180°两中线位置调整至水平等高， 三段内件的中心轴线 Z2、 Z3 同轴度在技术要求内；
步骤 6， 三段内件的四中线重合性和中心轴线 Zl、 Z2、 Z3 的同轴度满 足技术要求后， 将调整好的各段内件进行焊接固定。

Claims

权利要求：
1. 一种超长设备内件的组装检测方法， 用于组装检测两段以上的内件的连 接， 其特征在于， 该方法包含以下具体步骤：
步骤 1， 控制各段内件的四中线重合性：
分别将全站仪 （4) 和经纬仪 （5) 放置在内件 （1、 2、 3 ) 的左右两恻， 行车起吊内件（1、 2、 3)， 同时升降内件下方的支撑滚轮并旋转内件（1、 2、 3 )， 将位于水平位置的两中线位置调整至水平等高， 使各段内件 （1、 2、 3) 的四中线一一对应；
步骤 2， 控制各段内件的同轴度：
将球棱镜 （6) 分别均匀放置在各段内件 （1、 2、 3) 的外壁上， 并用全 站仪 （4) 测量记录球棱镜 （6) 的点位坐标， 然后在测量软件中通过计算， 得出各段内件（1、 2、 3) 的中心轴线， 以首段内件（1 ) 的中心轴线为基准， 査看和确定后段内件 （2、 3) 的中心轴线偏差， 根据偏差调整后段内件 （2、 3 )；
步骤 3， 再次控制各段内件的四中线重合性：
利用全站仪 （4) 和经纬仪 （5)， 行车起吊后段内件 （2、 3)， 同时升降 后段内件下方的支撑滚轮并旋转后段内件（2、 3)， 将后段内件（2、 3 )位于 水平位置的两中线与首段内件 （1 ) 位于水平位置的两中线调整至水平等高; 步骤 4， 再次控制各段内件的同轴度：
将球棱镜（6)分别均匀放置在后段内件（2、 3) 的外壁上， 得出后段内 件（2、 3 ) 的中心轴线， 以首段（1 ) 内件的中心轴线为基准， 査看和确定后 段内件 （2、 3 ) 的中心轴线偏差， 根据偏差调整后段内件 （2、 3)；
步骤 5， 按照步骤 3、 步骤 4调整后段内件 （2、 3 )， 直至各段位于水平 位置的两中线位置调整至水平等高， 各段中心轴线的同轴度在技术要求内； 步骤 6， 内件四中线重合性和同轴度满足技术要求后， 将调整好的各段 内件进行焊接固定。
2. 如权利要求 1所述的一种超长设备内件的组装检测方法， 其特征在于， 所 述的步骤 1中， 首段内件（1 )位于水平位置的两中线调整至水平等高后， 首 段内件 （1 ) 需保持固定不动， 直至组装检测结束。
3. 如权利要求 1所述的一种超长设备内件的组装检测方法， 其特征在于， 所 述的步骤 1、 步骤 3和步骤 5中， 经纬仪（5)通过发出一束平行于大地水平 面的可调红外光线调整内件， 使位于同恻水平位置的中线水平等高。
PCT/CN2012/071234 2011-08-31 2012-02-16 一种超长设备内件的组装检测方法 WO2013029353A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110253882.9A CN102430887B (zh) 2011-08-31 2011-08-31 一种煤气冷却器内件的组装检测方法
CN201110253882.9 2011-08-31

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