CN112764038B - Ultrasonic measuring method and device for transformer outlet device position - Google Patents
Ultrasonic measuring method and device for transformer outlet device position Download PDFInfo
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Abstract
本发明涉及一种变压器出线装置位置的超声波测量方法和装置。所述的测量方法包括以下步骤：（1）声波发射：选择超声波测量机构，通过水耦合机构，发射到变压器壳体内部；（2）消除回波干扰：采用定量衰减方法或者纵波斜入射方法消除变压器筒壁回波干扰；（3）记录回波位置：通过垂直方向、水平方向运动探头，寻找出线装置各个位置声程最小的反射点，连接成一条曲线；（4）确定变形量：在曲线上每隔一定距离确定一点，测量点到变压器底板的位置，得到最大变形量。本发明超声波测量方法操作简单、检测速度快，检测结果准确、显示直观，成本低，易于大规模推广。
The invention relates to an ultrasonic measurement method and device for the position of a transformer outlet device. The measurement method includes the following steps: (1) Acoustic wave emission: select an ultrasonic measurement mechanism and transmit it to the inside of the transformer shell through a water coupling mechanism; (2) Eliminate echo interference: use quantitative attenuation method or longitudinal wave oblique incidence method to eliminate Transformer barrel wall echo interference; (3) Record the echo position: by moving the probe in the vertical and horizontal directions, find the reflection points with the smallest sound path at each position of the outlet device, and connect them into a curve; (4) Determine the amount of deformation: on the curve Determine a point at a certain distance on the transformer, and measure the position from the measuring point to the base plate of the transformer to obtain the maximum deformation. The ultrasonic measurement method of the present invention has simple operation, fast detection speed, accurate detection results, intuitive display, low cost, and is easy to be promoted on a large scale.
Description
技术领域Technical field
本发明属于电力设备检测检修技术领域，具体涉及一种变压器出线装置位置的超声波测量方法和装置。The invention belongs to the technical field of detection and maintenance of electric power equipment, and specifically relates to an ultrasonic measurement method and device for the position of a transformer outlet device.
背景技术Background technique
换流变变压器一般采用电工铜作为绕组导体材料，当高强度电流通过导体材料时，在焦耳热效应和电子风力的共同作用下，会在金属导体中产生电致塑性效应，从而导致导体材料的强度逐渐降低，由于变压器出线装置内部导体位置散热较差，其温度更高，强度下降幅度更大。出线装置导体材料强度下降，会导致其在极端工况下发生塑性变形，在水平段形成下垂，而导体外部的绝缘材料承受的变形范围有限，从而将导体外部的绝缘拉断，造成放电故障发生。若未能及时发现放电故障，变压器继续运行，则会烧坏变压器，造成大面积停电，甚至威胁电力系统的安全运行。Converter transformers generally use electrical copper as the winding conductor material. When high-intensity current passes through the conductor material, under the joint action of the Joule heating effect and the electron wind force, an electroplastic effect will be produced in the metal conductor, resulting in the strength of the conductor material. Gradually decrease, because the internal conductor position of the transformer outlet device has poor heat dissipation, its temperature is higher, and the strength decreases even more. The decrease in the strength of the conductor material of the outlet device will cause it to undergo plastic deformation under extreme working conditions, causing sagging in the horizontal section. However, the insulating material outside the conductor can withstand a limited range of deformation, thus pulling off the insulation outside the conductor, causing discharge failures. . If the discharge fault is not discovered in time and the transformer continues to operate, the transformer will be burned out, causing a large-scale power outage, and even threatening the safe operation of the power system.
目前，国内外尚无相关检测方法，导致出线装置发生较大幅度变形后出现放电故障，生产中已因此引发多次大规模火灾事故，损失数十亿，给电网安全造成重大威胁。为避免类似事故的发生，急需寻求一种测量变压器出线装置位置的方法和装置，从而评估出线装置变形导致的下垂程度。At present, there is no relevant detection method at home and abroad, which leads to discharge failure after the outlet device is greatly deformed. This has caused many large-scale fire accidents in production, resulting in billions of losses, posing a major threat to the security of the power grid. In order to avoid similar accidents, it is urgent to find a method and device for measuring the position of the transformer outlet device, so as to evaluate the degree of sagging caused by the deformation of the outlet device.
发明内容Contents of the invention
为克服上述缺陷，本发明的目的在于提供一种变压器出线装置位置的超声波测量方法和装置，利用超声波的反射原理，实现对出线装置位置的测量和对出线装置变形程度的有效评估。To overcome the above defects, the purpose of the present invention is to provide an ultrasonic measurement method and device for the position of a transformer outlet device, which utilizes the reflection principle of ultrasonic waves to achieve measurement of the position of the outlet device and effective evaluation of the degree of deformation of the outlet device.
为实现上述目的，本发明采用如下技术方案：In order to achieve the above objects, the present invention adopts the following technical solutions:
一种变压器出线装置位置的超声波测量方法，包括以下步骤：An ultrasonic measurement method for the position of a transformer outlet device, including the following steps:
（1）声波发射：选择超声波测量机构，施加激励信号，激发相应频率超声波脉冲信号，通过水耦合机构，发射到变压器壳体内部；(1) Acoustic wave emission: Select the ultrasonic measuring mechanism, apply an excitation signal, excite the ultrasonic pulse signal of the corresponding frequency, and transmit it to the inside of the transformer shell through the water coupling mechanism;
（2）消除回波干扰：消除变压器筒壁回波干扰；(2) Eliminate echo interference: eliminate the echo interference of transformer cylinder wall;
（3）记录回波位置：通过垂直方向运动探头，寻找出线装置上声程最小的反射点，在变压器壳体外壁记录该反射点位置，然后横向变换探头位置，重复上述扫查动作，寻找出线装置各个位置声程最小的反射点，连接成一条曲线；(3) Record the echo position: Move the probe in the vertical direction to find the reflection point with the smallest sound path on the outlet device, record the position of the reflection point on the outer wall of the transformer shell, then change the probe position laterally, repeat the above scanning action, and find the outlet The reflection points with the smallest sound path at each position of the device are connected to form a curve;
（4）确定变形量：在步骤（3）曲线上每隔一定距离确定一点，测量点到变压器底板的位置，形成一组测量数据，将设计数据与测量数据相减，得到一组偏差数据，最大偏差数据即是最大变形量。(4) Determine the amount of deformation: Determine a point at a certain distance on the curve in step (3). The position of the measurement point to the transformer bottom plate forms a set of measurement data. Subtract the design data from the measurement data to obtain a set of deviation data. The maximum deviation data is the maximum deformation.
优选地，步骤（1）所述的超声波测量机构采用超声波探头。Preferably, the ultrasonic measurement mechanism in step (1) uses an ultrasonic probe.
优选地，步骤（1）所述的水耦合机构为一个空腔框体，所述的空腔框体的相对两侧面上分别设置若干小孔，每侧的小孔均连接水管，两侧水管分别与盛水容器和水泵相连，在超声波测量机构底部与变压器外壁之间形成水膜。Preferably, the water coupling mechanism in step (1) is a cavity frame, and a number of small holes are provided on opposite sides of the cavity frame. The small holes on each side are connected to water pipes, and the water pipes on both sides are connected to each other. They are respectively connected to the water container and water pump, and a water film is formed between the bottom of the ultrasonic measuring mechanism and the outer wall of the transformer.
优选地，步骤（2）所述的消除变压器筒壁回波干扰包括定量衰减方法或者纵波斜入射方法。Preferably, the method of eliminating the echo interference of the transformer barrel wall in step (2) includes a quantitative attenuation method or a longitudinal wave oblique incidence method.
优选地，所述的定量衰减方法是在无出线装置的位置，在变压器外部利用超声波测量机构垂直于变压器筒壁向内部发射一束超声波，获得多次反射底波，将波形反转，形成负波形，叠加到检测波中，从而抵消多次底波。Preferably, the quantitative attenuation method is to use an ultrasonic measuring mechanism outside the transformer to emit a beam of ultrasonic waves perpendicular to the transformer cylinder wall to the inside at a location where there is no outlet device, obtain multiple reflected bottom waves, invert the waveform to form a negative waveform, and superimpose it on the detection wave, thereby offsetting the multiple bottom waves.
优选地，所述的纵波斜入射方法是采用5-8°纵波倾斜入射到筒壁内表面。Preferably, the longitudinal wave oblique incidence method is to use 5-8° longitudinal wave oblique incidence to the inner surface of the cylinder wall.
一种变压器出线装置位置的超声波测量装置，包括输入模块、测量模块、信号处理模块、扫查模块和显示模块；An ultrasonic measuring device for the position of a transformer outlet device, including an input module, a measurement module, a signal processing module, a scanning module and a display module;
所述的输入模块用于输入各种检测参数；The input module is used to input various detection parameters;
所述的测量模块包括超声波测量机构和设置在超声波测量机构上的水耦合机构，所述的超声波测量机构通过水耦合机构向变压器壳体内部发射超声波信号，然后移动超声波测量机构位置，测量出线装置各个位置的回波信号；The measurement module includes an ultrasonic measurement mechanism and a water coupling mechanism provided on the ultrasonic measurement mechanism. The ultrasonic measurement mechanism emits ultrasonic signals to the inside of the transformer housing through the water coupling mechanism, and then moves the ultrasonic measurement mechanism to measure the outlet device. Echo signals at various locations;
所述的信号处理模块用于将测量模块检测得到的回波信号转换为电信号，消除回波干扰信号，传输给扫查模块；The signal processing module is used to convert the echo signal detected by the measurement module into an electrical signal, eliminate the echo interference signal, and transmit it to the scanning module;
所述的扫查模块将信号处理模块得到的电信号进行分析，确定出线装置各个位置回波声程最短的回波；The scanning module analyzes the electrical signal obtained by the signal processing module to determine the echo with the shortest echo path at each position of the outlet device;
所述的显示模块用于显示扫查模块得到的回波声程最短的回波对应的反射点在变压器壳体上的位置。The display module is used to display the position of the reflection point on the transformer shell corresponding to the echo with the shortest echo sound path obtained by the scanning module.
优选地，所述的检测参数包括出线装置直径、出线装置距离外壁距离、出线装置距离下底板距离、变压器筒体壁厚、超声波声程和超声波频率。Preferably, the detection parameters include the diameter of the outlet device, the distance between the outlet device and the outer wall, the distance between the outlet device and the lower bottom plate, the wall thickness of the transformer barrel, the ultrasonic sound path and the ultrasonic frequency.
优选地，所述的超声波测量机构采用超声波探头。Preferably, the ultrasonic measurement mechanism uses an ultrasonic probe.
优选地，所述的水耦合机构包括一个空腔框体，所述的空腔框体的相对两侧面上分别设置若干小孔，每侧的小孔均连接水管，两侧水管分别与盛水容器和水泵相连，在超声波探头底部与变压器外壁之间形成水膜。Preferably, the water coupling mechanism includes a cavity frame, and a number of small holes are provided on opposite sides of the cavity frame. The small holes on each side are connected to water pipes, and the water pipes on both sides are respectively connected to the water-containing pipes. The container is connected to the water pump, forming a water film between the bottom of the ultrasonic probe and the outer wall of the transformer.
本发明的积极有益效果：Positive beneficial effects of the present invention:
1. 本发明在变压器外部利用超声波探头垂直于变压器筒壁向内部发射一束超声波，通过固定位置定量衰减、纵波斜入射方法消除变压器筒壁回波干扰，测量出线装置反射波声程，通过垂直移动超声波探头，找到出线装置距离超声波探头回波声程最短的位置，测量该位置到变压器油箱底部的距离，来评估变压器出线装置向下变形的数值，然后水平移动超声波探头，重复上述扫查操作，寻找出线装置各个位置声程最小的反射点，得到最大变形量。本发明可有效测试变压器箱体内出线装置的位置，方便有效测试导体长期运行过程产生的变形量，为变压器运行过程中安全评定提供技术支持，提高电网设备安全性能，而且超声波测量方法操作简单、检测速度快，检测结果准确、显示直观，成本低，易于大规模推广。1. The present invention uses an ultrasonic probe outside the transformer to emit a beam of ultrasonic wave perpendicularly to the transformer barrel wall to the inside. It eliminates the echo interference of the transformer barrel wall through fixed position quantitative attenuation and longitudinal wave oblique incidence. It measures the sound path of the reflected wave of the outlet device and measures the sound path of the reflected wave through the vertical Move the ultrasonic probe to find the position where the echo sound path of the outlet device is the shortest from the ultrasonic probe. Measure the distance from this position to the bottom of the transformer tank to evaluate the downward deformation of the transformer outlet device. Then move the ultrasonic probe horizontally and repeat the above scanning operation. , find the reflection point with the smallest sound path at each position of the outlet device, and obtain the maximum deformation. The invention can effectively test the position of the outlet device in the transformer box, facilitate and effectively test the deformation amount produced by the conductor during long-term operation, provide technical support for safety assessment during the operation of the transformer, improve the safety performance of power grid equipment, and the ultrasonic measurement method is simple to operate and detect. It is fast, the detection results are accurate, the display is intuitive, the cost is low, and it is easy to promote on a large scale.
附图说明Description of drawings
图1为本发明超声波测量机构结构示意图；Figure 1 is a schematic structural diagram of the ultrasonic measurement mechanism of the present invention;
图2为本发明变压器出线装置位置的超声波测量回波图；Figure 2 is an ultrasonic measurement echo diagram of the position of the transformer outlet device of the present invention;
图3为本发明出线装置上声程最小的反射点的确定方法原理图；Figure 3 is a schematic diagram of the method for determining the reflection point with the smallest sound path on the outlet device of the present invention;
图4为本发明出线装置的模型图；Figure 4 is a model diagram of the outlet device of the present invention;
图5为本发明出线装置各个位置二维展示图。Figure 5 is a two-dimensional view showing various positions of the outlet device of the present invention.
具体实施方式Detailed ways
下面结合一些具体实施例对本发明进一步说明。The present invention will be further described below in conjunction with some specific embodiments.
实施例1Example 1
一种变压器出线装置位置的超声波测量装置，包括输入模块、测量模块、信号处理模块、扫查模块和显示模块；An ultrasonic measuring device for the position of a transformer outlet device, including an input module, a measurement module, a signal processing module, a scanning module and a display module;
所述的输入模块用于输入各种检测参数；所述的检测参数包括出线装置直径、出线装置距离外壁距离、出线装置距离下底板距离、变压器筒体壁厚、超声波声程和超声波频率，出线装置以水平设置位置为考虑；The input module is used to input various detection parameters; the detection parameters include the diameter of the outlet device, the distance between the outlet device and the outer wall, the distance between the outlet device and the lower bottom plate, the wall thickness of the transformer barrel, the ultrasonic sound path and the ultrasonic frequency. The device is set in a horizontal position;
参见图1，所述的测量模块包括超声波测量机构和设置在超声波测量机构上的水耦合机构，所述的超声波测量机构通过水耦合机构向变压器壳体内部发射超声波信号，然后移动超声波测量机构位置，测量出线装置各个位置的回波信号；Referring to FIG1 , the measuring module includes an ultrasonic measuring mechanism and a water coupling mechanism disposed on the ultrasonic measuring mechanism. The ultrasonic measuring mechanism transmits an ultrasonic signal to the inside of the transformer housing through the water coupling mechanism, and then moves the ultrasonic measuring mechanism to measure the echo signals at various positions of the outlet device.
所述的超声波测量机构采用常规超声波探头，所述的水耦合机构包括一个空腔框体，所述的空腔框体的相对两侧面上分别设置3-6个小孔，每侧的小孔均连接水管，两侧水管分别与盛水容器和水泵相连，通过水泵加压输送，在超声波探头底部与变压器外壁之间形成水膜，起到耦合作用。The ultrasonic measurement mechanism adopts a conventional ultrasonic probe. The water coupling mechanism includes a cavity frame. 3-6 small holes are respectively provided on the opposite sides of the cavity frame. The small holes on each side They are all connected to water pipes, and the water pipes on both sides are connected to the water container and the water pump respectively. They are pressurized and transported by the water pump to form a water film between the bottom of the ultrasonic probe and the outer wall of the transformer, which plays a coupling role.
所述的信号处理模块用于将测量模块检测得到的回波信号转换为电信号，消除回波干扰信号，传输给扫查模块；The signal processing module is used to convert the echo signal detected by the measurement module into an electrical signal, eliminate the echo interference signal, and transmit it to the scanning module;
所述的扫查模块将信号处理模块得到的电信号进行分析，确定出线装置各个位置回波声程最短的回波；The scanning module analyzes the electrical signals obtained by the signal processing module to determine the echo with the shortest echo sound path at each position of the outlet device;
所述的显示模块用于显示扫查模块得到的回波声程最短的回波对应的反射点在变压器壳体上的位置，连接成曲线，采用二维图展示。The display module is used to display the position of the reflection point on the transformer shell corresponding to the echo with the shortest echo sound path obtained by the scanning module, and is connected into a curve and displayed in a two-dimensional diagram.
一种变压器出线装置位置的超声波测量方法，包括以下步骤：An ultrasonic measurement method for the position of a transformer outlet device, including the following steps:
（1）声波发射：选择0.1MHz-5MHz范围内的超声波探头，施加激励信号，激发相应频率超声波脉冲信号，通过水耦合机构，发射到变压器壳体内部；(1) Acoustic wave emission: Select an ultrasonic probe in the range of 0.1MHz-5MHz, apply an excitation signal, stimulate the ultrasonic pulse signal of the corresponding frequency, and transmit it to the inside of the transformer shell through the water coupling mechanism;
（2）消除回波干扰：在声波进入变压器壳体时，金属壁内表面会形成多次回波，对目标回波形成干扰，本实施例优先采用定量衰减方法消除变压器筒壁回波干扰；(2) Eliminate echo interference: When sound waves enter the transformer shell, multiple echoes will be formed on the inner surface of the metal wall, interfering with the target echo. This embodiment gives priority to using a quantitative attenuation method to eliminate the echo interference from the transformer barrel wall;
设定入射声强为I0，反射声强为Ir，反射率为R，钢板内多次反射声强分别为Ir1，Ir2，Ir3...，超声波扩散角θ0≈70λ/D，其中λ是波长，因而Ir，n=Ir，n-1×R×tg(70λ/D)，可以看出多次反射波强度按照固定规律衰减。变压器壳体钢板壁厚为t，多次回波位置分别是t，3t，5t，间距固定为2倍壁厚。Assume the incident sound intensity is I 0 , the reflected sound intensity is I r , the reflectivity is R, the multiple reflected sound intensities in the steel plate are I r1 , I r2 , I r3 ..., the ultrasonic diffusion angle θ 0 ≈70λ/D, where λ is the wavelength, thus I r,n =I r,n-1 ×R×tg(70λ/D), it can be seen that the multiple reflected wave intensity decays according to a fixed rule. The wall thickness of the transformer housing steel plate is t, the multiple echo positions are t, 3t, 5t, and the spacing is fixed to 2 times the wall thickness.
采用定量衰减方法是在无出线装置的位置，在变压器外部利用超声波测量机构垂直于变压器筒壁向内部发射一束超声波，获得多次反射底波，参见图2a，将波形反转，形成负波形，叠加到检测波中，参见图2b，在同一个时间，同一个点，通过计算，叠加振幅相同，方向相反的波，叠加后该点的回波为零，消除多次回波对出线装置回波测量的影响，得到叠加后的回波，参见图2c。The quantitative attenuation method is to use an ultrasonic measuring mechanism outside the transformer to emit a beam of ultrasonic waves perpendicular to the transformer cylinder wall at a location without outlet devices to obtain multiple reflection bottom waves. See Figure 2a. The waveform is inverted to form a negative waveform. , superimposed into the detected wave, see Figure 2b. At the same time, at the same point, through calculation, waves with the same amplitude and opposite direction are superimposed. After superposition, the echo at this point is zero, eliminating the multiple echoes on the outlet device. The influence of wave measurement is obtained, and the superposed echo is obtained, see Figure 2c.
消除回波干扰方法还可以采用纵波斜入射方法，所述的纵波斜入射方法是采用5-8°纵波倾斜入射到筒壁内表面，即声波与壳体交界面法线之间的夹角为5-8°，此时反射波使主声束沿筒壁内向外反射和扩散，避免主声束形成干扰回波。The method of eliminating echo interference can also adopt the longitudinal wave oblique incidence method. The longitudinal wave oblique incidence method is to use 5-8° longitudinal wave oblique incidence to the inner surface of the cylinder wall, that is, the angle between the normal line of the interface between the sound wave and the shell is 5-8°. At this time, the reflected wave causes the main sound beam to reflect and diffuse outward along the inside of the cylinder wall, preventing the main sound beam from forming interference echoes.
（3）记录回波位置：通过垂直方向运动探头，寻找出线装置上声程最小的反射点，在变压器壳体外壁记录该反射点位置，然后横向变换探头位置，重复上述扫查动作，寻找出线装置各个位置声程最小的反射点，连接成一条连续的曲线；(3) Record the echo position: Move the probe in the vertical direction to find the reflection point with the smallest sound path on the outlet device, record the position of the reflection point on the outer wall of the transformer casing, then change the probe position laterally, repeat the above scanning action, and find the outlet The reflection points with the smallest sound path at each position of the device are connected into a continuous curve;
参见图3，超声波探头垂直于出线装置方向，从位置1向位置5移动，位置1无出线装置回波，位置2、3、4有回波，其中位置3的回波声程最短，可以确定为出线装置中心的位置，这个中心位置对应的是超声探头中心位置，通过测量该点与底板的距离，并与设计图纸比较，即可以得出该点的偏移量。Referring to Figure 3, the ultrasonic probe is perpendicular to the direction of the outlet device and moves from position 1 to position 5. There is no echo from the outlet device at position 1, and there are echoes at positions 2, 3, and 4. Among them, position 3 has the shortest echo sound path, which can be determined It is the position of the center of the outlet device. This center position corresponds to the center position of the ultrasonic probe. By measuring the distance between this point and the base plate and comparing it with the design drawing, the offset of this point can be obtained.
（4）确定变形量：在步骤（3）曲线上每隔3-5mm确定一点，测量点到变压器底板的位置，形成一组测量数据，将设计数据与测量数据相减，得到一组偏差数据，最大偏差数据即是最大变形量。(4) Determine the amount of deformation: Determine a point every 3-5mm on the curve in step (3), and measure the position of the point to the transformer bottom plate to form a set of measurement data. Subtract the design data from the measurement data to obtain a set of deviation data. , the maximum deviation data is the maximum deformation.
应用试验Application test
2020年11月15日，河南电科院开展四川德阳换流站变压器出线装置检测，具体检测情况如下：On November 15, 2020, Henan Electric Power Research Institute carried out inspection of the transformer outlet device of Deyang Converter Station in Sichuan. The specific inspection results are as follows:
1. 检测设备：采用本发明所述的变压器出线装置位置的超声波测量装置，采用频率5MHz、直径20mm的圆形纵波探头；1. Detection equipment: adopt the ultrasonic measuring device for the position of the transformer outlet device according to the present invention, and adopt a circular longitudinal wave probe with a frequency of 5MHz and a diameter of 20mm;
2. 检测对象：变压器出线装置，如下图4，圆棒形，水平布置，直径200mm，中心距离外壁300mm，距离下底板2100mm；2. Test object: Transformer outlet device, as shown in Figure 4, round rod-shaped, horizontally arranged, 200mm in diameter, 300mm from the center to the outer wall, and 2100mm from the bottom plate;
3. 检测过程3. Testing process
（1）启动测量装置，进入检测程序，输入检测参数；(1) Start the measuring device, enter the test program, and input the test parameters;
（2）调整声波位置和波幅，测量变压器筒体壁厚，壁厚t=20mm；(2) Adjust the position and amplitude of the sound wave, and measure the wall thickness of the transformer barrel, wall thickness t=20mm;
（3）在出线装置附近上下移动，找到水平出线装置回波；(3) Move up and down near the outlet device to find the echo from the horizontal outlet device;
（4）调整仪器检测声程大小，将出线装置回波处于屏幕水平50%位置，声程大小确定为380mm；(4) Adjust the sound path size detected by the instrument, place the echo of the outlet device at 50% of the screen level, and determine the sound path size to 380mm;
（5）调整仪器增益大小，将最高回波高度调整为屏幕80%高度；(5) Adjust the instrument gain and adjust the maximum echo height to 80% of the screen height;
（6）确定底波（T、3T、5T......）位置，采用定量衰减方法消除多次底波影响；(6) Determine the position of the back waves (T, 3T, 5T...), and use quantitative attenuation methods to eliminate the influence of multiple back waves;
（7）从出线装置端部开始上下方向扫查，确定最高回波的前沿位置，记录探头中心点在筒体外表面的目标；(7) Scan up and down starting from the end of the outlet device, determine the leading edge position of the highest echo, and record the target with the center point of the probe on the outer surface of the cylinder;
（8）水平移动10mm，继续上下移动，重复（7）的工作；(8) Move horizontally 10mm, continue to move up and down, and repeat the work of (7);
（9）根据探头中心点的坐标形成一条曲线，以2100mm为基准点，向下变形量如图5所示，横坐标为出线装置水平长度（单位mm），纵坐标为出线装置变形量（单位mm）。(9) A curve is formed according to the coordinates of the center point of the probe, with 2100 mm as the reference point. The downward deformation is shown in Figure 5. The horizontal axis is the horizontal length of the outlet device (unit: mm), and the vertical axis is the deformation of the outlet device (unit: mm).
4. 结果分析4. Results Analysis
由图5可知，在出线装置3960mm的水平长度的位置向下变形120mm，此位置变形量最大，逐渐向两侧变形减小，检测结果与实际变形情况相符，说明本发明测量方法可行。It can be seen from Figure 5 that the horizontal length of the outlet device is 3960mm, which deforms downward by 120mm. The deformation at this position is the largest, and the deformation gradually decreases toward both sides. The detection results are consistent with the actual deformation, indicating that the measurement method of the present invention is feasible.
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，本领域普通技术人员对本发明的技术方案所做的其他修改或者等同替换，只要不脱离本发明技术方案的精神和范围，均应涵盖在本发明的权利要求范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Those of ordinary skill in the art may make other modifications or equivalent substitutions to the technical solutions of the present invention, as long as they do not deviate from the spirit and scope of the technical solutions of the present invention. The scope should be covered by the claims of the present invention.
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