Cylinder installation adjustment measurement method

Abstract

The application provides a cylinder installation adjustment measurement method, relates to the technical field of engineering precision measurement technology, and comprises three-dimensional measurement transfer station reference network establishment, laser tracker transverse arrangement tool design, manufacture, installation and reactor pressure vessel cylinder hot gas duct center elevation measurement and the like. The cylinder installation adjustment measurement method provided by the application comprises establishing a three-dimensional measurement transfer station reference network, realizing reference unification during multiple adjustment measurements of a laser tracker; further comprises designing and manufacturing a laser tracker transverse arrangement tool, realizing that single-station laser tracker measurement during reactor pressure vessel cylinder installation adjustment can cover all feature points to avoid multiple transfer station measurements; further in the aspect of data calculation processing and analysis mode, design theoretical data can be directly imported, through comparison and analysis of measured data and theoretical data, deviation values can be intelligently calculated and deviation amounts and deviation directions can be directly and intuitively displayed in an image mode, thereby improving construction efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of engineering precision measurement technology, and in particular to a method for measuring the installation and adjustment of a cylinder. Background Technology

[0002] The reactor pressure vessel is a crucial component of a high-temperature gas-cooled reactor (HTGR) nuclear power plant. It plays a vital role in containing nuclear fuel and maintaining the high-pressure environment required for its operation. The vessel typically houses control rods, fuel assemblies, and coolant piping. It is characterized by its large weight and demanding installation requirements, making on-site construction challenging. Currently, the primary method for positioning and adjusting the reactor pressure vessel in various nuclear power plant reactor types is the total station method. This method involves setting up multiple total stations facing each other, manually operating them to aim at the 0°, 90°, 180°, and 270° markers on the reactor pressure vessel, and then measuring each point. The measured data is then compared with design data, and the deviations are manually calculated to guide the positioning and adjustment work. This method has the following technical drawbacks: (1) Large investment in surveying instruments and manpower: The total station surveying method is limited by the field of view of the instrument. Four total stations need to be set up at 0 degrees, 90 degrees, 180 degrees and 270 degrees respectively for synchronous observation. Four instruments and four groups of surveying personnel need to be configured at the same time.

[0003] (2) The construction efficiency of the manual observation + manual calculation and analysis method is low and there is a risk of "error rate": manual aiming observation requires adjusting the imaging clarity and repeatedly adjusting the instrument screw until the instrument crosshair is aligned with the prism crosshair before data can be collected. After the data is obtained, the deviation is calculated by the calculator and a sketch is drawn to analyze the adjustment direction and adjustment amount of the cylinder. This method is inefficient and there is a certain risk of error in manual calculation. It is highly dependent on highly skilled personnel. Summary of the Invention

[0004] The purpose of this invention is to provide a method for measuring the installation and adjustment of a cylinder, in order to solve the technical problem that the existing method of obtaining data and then using a calculator to calculate the deviation and draw a sketch to analyze the adjustment direction and amount of the cylinder is inefficient, and that manual calculation carries a certain risk of error and is highly dependent on highly skilled personnel.

[0005] This invention provides a method for measuring the installation and adjustment of a cylindrical body, comprising the following steps: Step S1: Fix the transfer target base at the first and second elevation levels on the inner wall of the reactor pressure vessel compartment; evenly distribute multiple transfer reference points along the circumference of the compartment on each floor, set up the laser tracker on the platform at the first elevation level, preheat and level it to generate the instrument's local horizontal coordinate system; import the theoretical coordinates of the field densified control network points, measure the field densified control points, and transform the instrument coordinate system to the field engineering coordinate system through the best fit of common points; measure and store all transfer reference points on both floors as the unified coordinate traceability reference for the entire measurement process; S2: Weld the tooling to the first elevation level, with the tooling extending towards the cabin interior, and place the laser tracker body horizontally on the tooling; S3: The laser tracker's field of view completely covers all measuring points on the main flange face of the cylinder and the nozzle of the hot gas duct; power on, connect, and preheat for more than 30 minutes, create a new set and name it "First Adjustment Measurement", measure the reference points of the upper and lower transfer stations and name the combination "Instrument Positioning Point", and use the instrument positioning best fit conversion function to select the "Transfer Station Reference Point" point combination and the "Instrument Positioning Point" point combination in sequence. Use the relationship between the two sets of common points to position the laser tracker in the field coordinate system. After the instrument is positioned, use a planar target to measure the feature points of the main flange face of the reactor pressure vessel. Multiple feature points should be selected evenly to accurately reflect the planar features of the sealing surface. After data acquisition, query the maximum and minimum deviation values ​​of the Z values ​​of each feature point, which are the sealing surface levelness data. After the main flange face levelness measurement is completed, the reflective target ball is placed on the cylindrical pin target seat. The cylindrical pin target seat is close to the inner circle of the stop of the main flange of the reactor pressure vessel and the inner wall of the 0°, 90°, 180° and 270° quadrant holes. Multiple feature points are selected evenly in single-point measurement mode for data acquisition. After the measurement is completed, a geometric fit is performed to construct the circumference and generate the center point; the design theoretical data is imported, and the coordinates of the center point of the inner circle of the stop, the coordinates of the center point of the 0°, 90°, 180°, and 270° quadrant holes are compared with the design values ​​to obtain the deviation value and deviation direction. This is used as the reference for adjusting the reactor pressure vessel shell. After adjustment, the measurement is repeated, and the adjustment is repeated until the position tolerance requirements of the center point of the main flange of the shell and the center point of the reactor compartment are met. S4: Place the planar target on the flange surface of the hot gas duct nozzle and collect data by uniformly selecting multiple normal surface feature points. During measurement, the reflective target ball is vertically upward. All planar feature points are measured sequentially to collect data. After the measurement is completed, the planar feature points are geometrically fitted to construct the plane. A straight line is constructed between the center point of the reactor pressure vessel compartment and the center point of the steam generator compartment. Using the "Create → Plane → Perpendicular to Plane through a Line" function, the horizontal plane after the laser tracker is horizontally adjusted is used as the vertical reference plane. The reference plane B is created by sequentially selecting the line connecting the center points of the two compartments and the horizontal plane. The parallelism data between the hot gas duct nozzle flange surface plane and the reference plane B is then queried. S5: After the parallelism measurement is completed, the center elevation of the hot gas duct of the reactor pressure vessel is measured. The laser tracker is set up on the concrete platform of the steam generator compartment. After powering on, connecting to the network, and preheating for 30 minutes, the instrument is leveled, a horizontal coordinate system is generated and activated as the current coordinate system. Using a cylindrical pin target seat close to the inner wall of the hot gas duct nozzle flange of the reactor pressure vessel, multiple feature points are uniformly selected for data acquisition in a single-point measurement mode. After the measurement is completed, a geometric fit is performed to construct the circumference and generate the center point. In the horizontal coordinate system, a planar target is placed on the cabin elevation benchmark point for data acquisition. Based on the known theoretical elevation data of the benchmark point and the elevation difference between the benchmark point and the center point of the hot gas duct nozzle flange, the actual on-site elevation data of the center point of the hot gas duct nozzle flange can be calculated.

[0006] In an optional implementation, in step S1, the height of the first elevation level is 29.3 meters and the height of the second elevation level is 21.5 meters.

[0007] In an optional implementation, in step S1, at least 6 transfer reference points are evenly distributed along the circumference of each compartment on each floor.

[0008] In an optional implementation, in step S2, the tooling is a cuboid, and the tooling is 800mm long, 300mm wide, and 20mm high. In an optional embodiment, a circular fall arrestor ring is fixedly provided on the upper surface of the tooling, the circular fall arrestor ring being used to connect to the fall arrestor rope of the laser tracker; and two-thirds of the tooling extends into the cabin cavity.

[0009] In an optional implementation, in step S3, a planar target is used to measure the feature points on the main flange face of the reactor pressure vessel, and one feature point should be selected evenly every 30 degrees. In an optional implementation, in step S3, at least six feature points are uniformly selected using a single-point measurement mode for data acquisition.

[0010] In an optional implementation, in step S4, one flange face feature point is selected uniformly every 30 degrees for data acquisition. In an optional implementation, in step S5, at least 8 feature points are uniformly selected using a single-point measurement mode for data collection. In an optional implementation, step S6 is also included: after the reactor pressure vessel shell is adjusted to meet all technical requirements, it is reinforced; after the reinforcement is completed, all technical requirement parameters of the pressure vessel shell are retested, and the retest data is used as the final result.

[0011] The method for measuring the installation and adjustment of the reactor pressure vessel cylinder provided by this invention includes establishing a three-dimensional measurement reference network to achieve a unified reference during multiple adjustments and measurements of the laser tracker; it also includes designing and manufacturing a lateral mounting fixture for the laser tracker to ensure that single-station laser tracker measurements can cover all feature points during reactor pressure vessel cylinder installation and adjustment, avoiding multiple station transfers; furthermore, in terms of data calculation, processing, and analysis, it can directly import design theoretical data, and through comparative analysis of measured data and theoretical data, it can intelligently calculate the deviation value and visually display the deviation amount and direction in an image format, thereby improving construction efficiency. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 A schematic diagram of a laser tracker measuring the reactor pressure vessel cylinder laterally using a cylinder installation and adjustment measurement method provided in an embodiment of the present invention; Figure 2 This invention provides a schematic diagram of the layout of reference points for a three-dimensional measurement station in your cylinder installation and adjustment measurement method. Figure 3 A schematic diagram showing the measurement points on the main flange of the reactor pressure vessel. Figure 4 This is a schematic diagram of the measurement points for the nozzle flange of the hot gas duct. Figure 5 A schematic diagram of the tooling for horizontally mounting a laser tracker.

[0014] Icons: 100 - First elevation level; 200 - Laser tracker; 300 - Main flange face; 301 - Main flange face feature point; 302 - Quadrant hole; 303 - Inner circle of stop; 400 - Hot gas duct nozzle flange face; 401 - Flange face feature point; 402 - Inner wall of hot gas duct nozzle flange; 500 - Reference plane B; 600 - Second elevation level; 700 - Tooling; 701 - Circular anti-fall ring. Detailed Implementation

[0015] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0016] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0017] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0019] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.

[0020] Example This invention provides a method for measuring the installation and adjustment of a reactor pressure vessel cylinder, including the establishment of a three-dimensional measurement base network, the design, fabrication, and installation of a laser tracker 200 and a lateral mounting fixture 700, the measurement of the levelness and position of the main flange of the reactor pressure vessel cylinder, and the measurement of the center elevation of the hot gas duct of the reactor pressure vessel cylinder.

[0021] Reference Figures 1-5 The present invention provides a method for measuring the installation and adjustment of a cylinder, comprising the following steps: Step S1: Fix the transfer target base at the first elevation level 100 and the second elevation level 600 on the inner wall of the reactor pressure vessel compartment respectively; evenly distribute multiple transfer reference points along the circumference of the compartment on each floor, and set up the laser tracker 200 on the platform at the first elevation level 100, preheat and level it to generate the instrument's local horizontal coordinate system; import the theoretical coordinates of the field densified control network points, measure the field densified control points, and transform the instrument coordinate system to the field engineering coordinate system through the best fit of common points; measure and store all transfer reference points on both floors as the unified coordinate traceability reference for the entire process measurement.

[0022] The laser tracker 200 has a ranging accuracy of 15μm+6μm / m. Compared with the total station measurement method, the laser tracker 200 measurement method can improve the measurement accuracy and ensure the installation quality.

[0023] The height of the first section's high-rise building (100 meters) and the second section's high-rise building (600 meters) is generally taken as the zero point, and is the vertical height upwards.

[0024] To avoid the accumulation of errors caused by repeated acquisition of measurement reference point data required for establishing the coordinate system, it is necessary to transfer the measurement reference to an easily accessible transfer station and establish a three-dimensional measurement transfer station reference. This reference will be used for instrument positioning of the laser tracker 200 during multiple station measurements, thereby improving measurement accuracy and shortening the equipment commissioning period.

[0025] S2: Weld tooling 700 onto the first elevation layer 100, with tooling 700 extending toward the cabin interior, and the laser tracker 200 fuselage horizontally mounted on tooling 700. Considering that the instrument parameters of the laser tracker 200 with an elevation angle of ±55° cannot cover all the measurement feature points of the main flange of the reactor pressure vessel by a single station, the laser tracker 200 needs to be placed horizontally, and the measurement range needs to be changed from the elevation angle to the ±320° horizontal angle. Fixture 700 needs to be designed and manufactured to meet the horizontal placement requirements of the laser tracker 200.

[0026] S3: The laser tracker 200's field of view completely covers the main flange face 300 of the cylinder and all measuring points of the hot gas duct nozzle; power on, connect, and preheat for more than 30 minutes, create a new set and name it "First Adjustment Measurement", measure the reference points of the upper and lower transfer stations and name the combination "Instrument Positioning Point", and use the instrument positioning best fit conversion function to select the "Transfer Station Reference Point" point combination and the "Instrument Positioning Point" point combination in sequence. Use the relationship between the two sets of common points to position the laser tracker 200 in the field coordinate system. After the instrument is positioned, use a planar target to measure feature point 301 on the main flange face of the reactor pressure vessel. Multiple feature points should be selected evenly to accurately reflect the planar features of the sealing surface. After data acquisition, query the maximum and minimum deviation values ​​of the Z value (i.e., elevation value) of each feature point, which are the sealing surface levelness data. After the 300 level measurement of the main flange face is completed, the reflective target ball is placed on the cylindrical pin target seat. The cylindrical pin target seat is close to the inner circle 303 of the stop of the main flange of the reactor pressure vessel and the inner wall of the quadrant holes 302 of 0°, 90°, 180° and 270°. Multiple feature points are selected evenly in the single-point measurement mode for data acquisition. After the measurement is completed, a circumference is constructed by geometric fitting and the center point is generated. The design theoretical data is imported, and the coordinates of the center point of the inner circle 303 of the stop, the coordinates of the center point of the 0°, 90°, 180°, and 270° quadrant hole 302 are compared with the design values ​​to obtain the deviation value and deviation direction. This is used as the reference for adjusting the reactor pressure vessel shell. After adjustment, the measurement is repeated, and the adjustment is repeated until the position tolerance requirements of the center point of the main flange of the shell and the center point of the reactor compartment are met.

[0027] Reference Figure 3 A schematic diagram of the measurement points on the main flange of the reactor pressure vessel. The main flange of the vessel has four quadrant holes 302.

[0028] S4: Place the planar target on the flange face 400 of the hot gas duct nozzle, and uniformly select multiple flange face feature points 401 for data acquisition; during measurement, the reflective target ball should be vertically upward, and all planar feature points should be measured sequentially to complete the data acquisition. After the measurement is completed, the planar feature points should be geometrically fitted to construct a plane; construct a straight line between the center point of the reactor pressure vessel compartment and the center point of the steam generator compartment, and use the "Create → Plane → Perpendicular to Plane through a Line" function, with the horizontal plane after the laser tracker 200 is horizontally adjusted as the vertical reference plane, and sequentially select the line connecting the center points of the two compartments and the horizontal plane to create the reference plane B500; use this to query the parallelism data between the plane of the hot gas duct nozzle flange face 400 and the reference plane B500; S5: After the parallelism measurement is completed, the center elevation of the hot gas duct of the reactor pressure vessel is measured. The laser tracker 200 is set up on the concrete platform of the steam generator compartment. After powering on, connecting, and preheating for 30 minutes, the instrument is leveled, a horizontal coordinate system is generated and activated as the current coordinate system. Using a cylindrical pin target seat close to the inner wall 402 of the hot gas duct nozzle flange of the reactor pressure vessel, multiple feature points are uniformly selected for data acquisition in a single-point measurement mode. After the measurement is completed, a geometric fit is performed to construct the circumference and generate the center point. In the horizontal coordinate system, a planar target is placed on the cabin elevation benchmark point for data acquisition. Based on the known theoretical elevation data of the benchmark point and the elevation difference between the benchmark point and the center point of the hot gas duct nozzle flange, the actual on-site elevation data of the center point of the hot gas duct nozzle flange can be calculated.

[0029] Cylindrical pin target seats and flat target seats are used in conjunction with laser tracker 200. Generally, cylindrical pin target seats are fitted with pin holes, and flat target seats are fitted with flat surfaces. The inner diameter of the stop inner circle 303 of the main flange of the cylinder is 5898mm, and the inner diameter of the hot gas duct nozzle flange is 1916mm.

[0030] The method for measuring and adjusting the cylinder installation includes establishing a three-dimensional measurement reference network to solve the problem of error accumulation caused by establishing multiple measurement references during continuous adjustment and measurement over multiple days, thus ensuring the accuracy of installation measurements. This method also includes designing and manufacturing a laser tracker 200 and a horizontal mounting fixture 700 to convert the laser tracker 200 from a vertical to a horizontal setup, thus solving the problem of needing to set up multiple measuring instruments for observation due to the instrument's field of view, ensuring a shorter adjustment and measurement period and saving construction costs. Furthermore, in terms of data calculation, processing, and analysis, the method allows direct import of design theoretical data. By comparing and analyzing measured data with theoretical data, the method can intelligently calculate the deviation value and visually display the deviation amount and direction graphically. This solves the problem of traditional adjustment and measurement relying on experienced construction personnel for calculation and analysis, which has a certain "error rate," thus ensuring the accuracy of measurement data and improving construction efficiency.

[0031] The cylinder installation and adjustment measurement method features high measurement accuracy and simple and easy-to-operate process, which effectively improves on-site construction efficiency and ensures measurement accuracy. It can shorten the on-site construction period and save project construction costs, and is of great significance in improving the intelligent construction of high-temperature gas-cooled reactor nuclear power projects in my country.

[0032] In an optional implementation, in step S1, the height of the first elevation level 100 is 29.3 meters, and the height of the second elevation level 600 is 21.5 meters.

[0033] In an optional implementation, in step S1, at least 6 transfer reference points are evenly distributed along the circumference of each compartment on each floor.

[0034] Reference Figure 5 In an optional embodiment, in step S2, the tooling 700 is a cuboid, and the tooling 700 is 800mm long, 300mm wide and 20mm high. In an optional embodiment, a circular fall arrestor ring 701 is fixedly provided on the upper surface of the tooling 700, the circular fall arrestor ring 701 being used to connect to the fall arrestor rope of the laser tracker 200; and two-thirds of the tooling 700 extends into the cabin cavity.

[0035] Reference Figure 2 In an optional implementation, in step S3, the feature point 301 of the main flange face of the reactor pressure vessel is measured using a planar target, and one feature point should be selected evenly every 30 degrees. In an optional implementation, in step S3, at least six feature points are uniformly selected using a single-point measurement mode for data acquisition.

[0036] Reference Figure 4In an optional implementation, in step S4, one flange surface feature point 401 is selected uniformly every 30 degrees for data acquisition. In an optional implementation, in step S5, at least 8 feature points are uniformly selected using a single-point measurement mode for data collection. In an optional implementation, step S6 is also included: after the reactor pressure vessel shell is adjusted to meet all technical requirements, it is reinforced; after the reinforcement is completed, all technical requirement parameters of the pressure vessel shell are retested, and the retest data is used as the final result.

[0037] The method for measuring the installation and adjustment of the reactor pressure vessel cylinder provided by this invention includes establishing a three-dimensional measurement reference network to achieve reference consistency during multiple adjustments and measurements of the laser tracker 200; it also includes designing and manufacturing a lateral mounting fixture 700 for the laser tracker 200, enabling a single-station laser tracker 200 measurement to cover all feature points during reactor pressure vessel cylinder installation and adjustment, avoiding multiple station transfers; furthermore, in terms of data calculation, processing, and analysis, it allows direct import of design theoretical data, and through comparative analysis of measured data and theoretical data, it can intelligently calculate the deviation value and visually display the deviation amount and direction in an image format, thereby improving construction efficiency.

[0038] This invention proposes a method for measuring the installation and adjustment of the cylinder. By using "automatic laser tracking measurement + intelligent data software calculation and analysis", the measurement process reduces the frequency of manual operation, improves construction efficiency, reduces the risk of "uncontrollable human operation", and reduces the cost of measuring instruments and manpower. This helps to shorten the main construction period of the high-temperature gas-cooled reactor and improve the economic efficiency of high-temperature gas-cooled reactor construction.

[0039] The method includes: first, establishing a three-dimensional measurement reference network to achieve benchmark consistency during multiple adjustments and measurements of the laser tracker 200; second, designing and manufacturing a lateral mounting fixture 700 for the laser tracker 200 to ensure that single-station laser tracker 200 measurements can cover all feature points during reactor pressure vessel installation and adjustment, avoiding multiple station transfers; and third, in terms of data calculation, processing, and analysis, the method can directly import design theoretical data, and through comparative analysis of measured data and theoretical data, intelligently calculate the deviation value and visually display the deviation amount and direction in an image format, thereby improving construction efficiency.

[0040] This method includes establishing a three-dimensional measurement reference network, designing and manufacturing a 200mm laser tracker with a 700mm lateral mounting fixture, and the measurement process for installing and adjusting the reactor pressure vessel shell. Compared to traditional total station measurement methods for reactor pressure vessel shells, the main innovations include the following: (1) This method can achieve single-station coverage of all measurement feature points of the measuring instrument, without the need to set up multiple instruments and configure multiple groups of measuring personnel, thus saving the cost of measuring instruments and personnel; (2) This method does not require manual aiming and observation, and the laser automatically tracks and measures, which can improve the efficiency of measurement and construction, avoid the accumulation of errors caused by manual aiming and observation, and improve measurement accuracy; (3) This method can intelligently analyze data through software and provide a visual and intuitive display of the adjustment direction and adjustment amount. Compared with the manual calculation and analysis method, it can avoid the risk of "human error rate". Operators can directly make adjustments based on the image display, thereby improving construction efficiency. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for measuring the installation and adjustment of a cylindrical body, characterized in that, Includes the following steps: Step S1: Fix the transfer target base at the first elevation level (100) and the second elevation level (600) of the inner wall of the reactor pressure vessel compartment respectively; evenly distribute multiple transfer reference points along the circumference of the compartment on each layer and set up the laser tracker (200) on the platform of the first elevation level (100), preheat and level to generate the local horizontal coordinate system of the instrument; import the theoretical coordinates of the field densified control network points, measure the field densified control points, and transform the instrument coordinate system to the field engineering coordinate system through the best fit of the common points; measure and store all transfer reference points on both layers as the unified coordinate traceability reference for the whole process measurement; S2: Weld the fixture (700) onto the first elevation layer (100), and extend the fixture (700) toward the cabin. The laser tracker (200) is mounted laterally on the fixture (700). S3: The field of view of the laser tracker (200) completely covers the main flange face (300) of the cylinder and all measuring points of the hot gas duct nozzle; power on, connect and preheat for more than 30 minutes, create a new set and name it the first adjustment measurement, measure the reference points of the upper and lower transfer stations and name the combination as the instrument positioning point, and select the "transfer station reference point" point combination and the "instrument positioning point" point combination in turn through the instrument positioning best fit conversion function, and position the laser tracker (200) to the field coordinate system through the two sets of common point position relationships; After the instrument is positioned, use a planar target to measure the feature points (301) on the main flange face of the reactor pressure vessel. Multiple feature points should be selected evenly to accurately reflect the planar features of the sealing surface. After the data collection is completed, query the maximum and minimum deviation values ​​of the Z values ​​of each feature point, which are the sealing surface levelness data; After the levelness measurement of the main flange face (300) is completed, the reflective target ball is placed on the cylindrical pin target seat. The cylindrical pin target seat is close to the inner circle (303) of the stop of the main flange of the reactor pressure vessel and the inner wall of the quadrant holes (302) of 0°, 90°, 180° and 270°. Multiple feature points are selected evenly in the single-point measurement mode for data acquisition. After the measurement is completed, the circumference is constructed by geometric fitting and the center point is generated; the design theoretical data is imported, and the coordinates of the center point of the inner circle (303) of the stop, the coordinates of the center point of the quadrant hole (302) of 0°, 90°, 180°, and 270° are compared with the design value to obtain the deviation value and deviation direction. This is used as the reference for adjusting the reactor pressure vessel cylinder. After adjustment, the measurement is repeated, and the adjustment is repeated until the position tolerance requirements of the center point of the main flange of the cylinder and the center point of the reactor compartment are met. S4: Place the planar target on the flange face (400) of the hot gas duct nozzle, and uniformly select multiple flange face feature points (401) for data acquisition; During measurement, the reflective target ball is vertically upward. All planar feature points are measured sequentially to collect data. After the measurement is completed, the planar feature points are geometrically fitted to construct the plane. The center point of the reactor pressure vessel compartment and the center point of the steam generator compartment are connected to form a straight line. Using the function "Create → Plane → Perpendicular to the plane through a straight line", the horizontal plane after the laser tracker (200) is adjusted horizontally is used as the vertical reference plane. The line connecting the center points of the two compartments and the horizontal plane are selected in sequence to create the reference plane B (500). The parallelism data between the plane of the hot gas duct nozzle flange (400) and the reference plane B (500) is queried. S5: After the parallelism measurement is completed, the center elevation of the hot gas duct of the reactor pressure vessel is measured. The laser tracker (200) is set up on the concrete platform of the steam generator compartment. After powering on, connecting, and preheating for 30 minutes, the instrument is leveled, a horizontal coordinate system is generated and activated as the current coordinate system. Using a cylindrical pin target seat close to the inner wall (402) of the hot gas duct nozzle flange of the reactor pressure vessel, multiple feature points are uniformly selected for data acquisition in a single-point measurement mode. After the measurement is completed, geometric fitting is performed to construct the circumference and generate the center point. In the horizontal coordinate system, a planar target is placed on the cabin elevation benchmark point for data acquisition. Based on the known theoretical elevation data of the benchmark point and the elevation difference between the benchmark point and the center point of the hot gas duct nozzle flange, the actual on-site elevation data of the center point of the hot gas duct nozzle flange can be calculated.

2. The cylinder installation, adjustment, and measurement method according to claim 1, characterized in that, In step S1, the height of the first elevation level (100) is 29.3 meters and the height of the second elevation level (600) is 21.5 meters.

3. The cylinder installation, adjustment, and measurement method according to claim 1, characterized in that, In step S1, no fewer than 6 transfer reference points are evenly distributed along the circumference of each compartment on each floor.

4. The cylinder installation, adjustment, and measurement method according to claim 1, characterized in that, In step S2, the fixture (700) is a cuboid, and the fixture (700) is 800mm long, 300mm wide and 20mm high.

5. The cylinder installation, adjustment, and measurement method according to claim 4, characterized in that, A circular fall arrestor ring (701) is fixedly installed on the upper surface of the tooling (700), the circular fall arrestor ring (701) is used to connect with the fall arrestor rope of the laser tracker (200); and two-thirds of the tooling (700) extends into the cabin cavity.

6. The cylinder installation, adjustment, and measurement method according to claim 1, characterized in that, In step S3, the feature point (301) on the main flange face of the reactor pressure vessel is measured using a planar target holder. One feature point should be selected evenly every 30 degrees.

7. The cylinder installation, adjustment, and measurement method according to claim 1, characterized in that, In step S3, at least six feature points are uniformly selected using a single-point measurement mode for data acquisition.

8. The cylinder installation, adjustment, and measurement method according to claim 1, characterized in that, In step S4, one flange surface feature point (401) is selected uniformly every 30 degrees for data acquisition.

9. The method for measuring and adjusting the cylinder installation according to claim 1, characterized in that, In step S5, at least 8 feature points are uniformly selected using a single-point measurement mode for data collection.

10. The method for measuring the installation and adjustment of a cylinder according to claim 1, characterized in that, It also includes step S6: after the reactor pressure vessel shell is adjusted to meet all technical requirements, it is reinforced. After the reinforcement is completed, all technical requirement parameters of the pressure vessel shell are retested, and the retest data is used as the final result.

Images