A method for positioning and detecting a curved embedded part of a nuclear reactor containment dome water tank

Abstract

This invention discloses a method for positioning and detecting curved embedded parts in a containment dome water tank of a nuclear reactor. The method includes the following steps: setting up an inverted L-shaped measuring fixture at a predetermined location inside the containment dome water tank; establishing a unified measurement and control coordinate system inside the water tank; laying out the installation position of the curved embedded part using a predetermined azimuth angle as a reference; setting up a support structure at the laid-out installation position and installing a horizontal support on top of the support structure; hoisting the curved embedded part to the installation position and inserting it into a curved surface attitude guiding fixture; adjusting the curved embedded part; performing three-dimensional coordinate measurement on the curved embedded part, calculating its three-dimensional radius deviation relative to the center of the containment dome sphere, and fixing the curved embedded part after the deviation meets the predetermined accuracy requirements, thus completing the positioning and detection. This invention solves the problems of difficult precise positioning of curved embedded parts, difficulty in adjusting the spatial attitude of curved embedded parts, and lack of effective quantitative quality assessment methods after installation in the prior art.

Description

Technical Field

[0001] This invention relates to the field of nuclear power plant construction technology, specifically to a method for locating and detecting embedded parts on the curved surface of the containment dome water tank of a nuclear reactor. Background Technology

[0002] In the construction of containment domes in nuclear power plants, conventional methods for locating embedded parts typically involve laying out the upper surface of the dome combined with laser projection. The positions of the embedded parts are marked on the upper surface of the dome or on the steel ribs, and then positioned using a plumb bob or projected laser points. However, this method is suitable for ordinary curved dome structures. For hyperboloidal, sloping embedded parts, laser projection in a single direction is insufficient to simultaneously control the positional accuracy in both the radial and circumferential dimensions.

[0003] Furthermore, the reactor building's outer containment dome houses a passively attached stainless steel water tank, located high within the dome. Construction faced numerous challenges, including the significant working height, the hyperboloidal sloping structure, the dense arrangement of installation components, the confined construction space, and the overlapping of multiple processes. After the tank's outer walls were completed, the dome's interior became a relatively enclosed space, preventing signals from the external measurement and control network from directly reaching the embedded parts' installation locations. This resulted in an interruption of the measurement link from the outside in, leading to a lack of effective measurement and control benchmarks for the embedded parts installation. Simultaneously, the three-dimensional spatial orientation of the curved embedded parts was difficult to adjust precisely without reference points, and there was a lack of effective means to quantitatively assess the installation quality.

[0004] Therefore, there is an urgent need for a method that can accurately and efficiently perform the positioning and detection of the embedded parts of the containment dome water tank under conditions of high altitude, narrow space, and multiple processes. Summary of the Invention

[0005] The purpose of this invention is to provide a method for positioning and detecting curved embedded parts in the containment dome water tank of a nuclear reactor, so as to solve the problems in the prior art that curved embedded parts are difficult to position accurately, the spatial attitude of curved embedded parts is difficult to adjust, and there is a lack of effective quantitative quality assessment methods after installation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method for locating and detecting embedded parts on the curved surface of a containment dome water tank in a nuclear reactor includes the following steps: S1: Set up several inverted L-shaped measuring fixtures at predetermined locations inside the containment dome water tank; set up measuring instruments on each inverted L-shaped measuring fixture and connect them with the external plant area measurement and control network points to obtain the three-dimensional coordinates of each inverted L-shaped measuring fixture and establish a unified measurement and control coordinate system inside the water tank. S2: Based on the measurement and control coordinate system, the installation position of the curved embedded part is laid out using the inverted L-shaped measurement fixture with the preset azimuth angle as the reference, the radius control line in space is determined, and the azimuth angle alignment status is checked by the deviation of the azimuth angle control line. S3: Based on the radius control line and azimuth alignment, set up a support structure at the installation position obtained by layout, and set up a horizontal support on the top of the support structure; set up a radius limiting block on the horizontal support according to the radius control line to limit the radial positioning position of the curved embedded part; S4: Hoist the curved embedded part to the installation position, so that its bottom end abuts against the radius limiting block, and insert the curved attitude guide fixture, which has a guide surface; S5: Adjust the curved embedded part so that its surface fits the guide surface of the curved attitude guide fixture, and the orientation line is aligned with the baseline of the curved attitude guide fixture. S6: Use measuring instruments to perform three-dimensional coordinate measurement on the installed curved embedded part, and calculate its three-dimensional radius deviation relative to the center of the containment dome based on the measurement results. After the deviation meets the preset accuracy requirements, fix the curved embedded part to complete the positioning test.

[0007] To optimize the above technical solution, the specific limitations also include: In step S1, the inverted L-shaped measuring fixture includes a pre-embedded inverted L-shaped I-beam and a forced centering plate installed on the top of the inverted L-shaped I-beam.

[0008] Preferably, in step S1, the inverted L-shaped measuring fixture is set with at least eight points.

[0009] Furthermore, in step S2, the formulas for calculating the radial distance value corresponding to the radius control line and the deviation of the azimuth control line are as follows:

[0010]

[0011] Where R is the radial distance of the radius control line, and T is the azimuth control line deviation. , These are the measured ordinate and abscissa of the stakeout point, respectively. , These are the ordinate and abscissa of the center of the reactor building, respectively. This is the preset azimuth angle.

[0012] Furthermore, the supporting structure is a lattice structure formed by vertical supporting steel bars; the horizontal supporting member is a horizontal steel bar welded to the top of the lattice.

[0013] Preferably, the radius limiting block is a metal block fixedly connected to the horizontal support and located on the side of the radius control line facing the center of the containment dome.

[0014] Preferably, in step S4, the curved surface posture guiding fixture is an angle steel component whose angle matches the curved surface angle of the curved embedded part to be installed, and whose guiding surface shape is adapted to the curved surface shape of the curved embedded part.

[0015] Further, in step S6, the formula for calculating the three-dimensional radius deviation is:

[0016] in, R is the deviation of the solid radius. , and To measure the three-dimensional coordinates of the embedded curved surface after installation. , and The three-dimensional coordinates of the center of the containment dome are: This is the theoretical radius of the containment dome.

[0017] Preferably, the preset accuracy requirement is that the deviation of the three-dimensional radius is less than 3mm.

[0018] Compared with the prior art, the beneficial effects of the present invention are: The present invention provides a method for positioning and detecting curved embedded parts in the containment dome water tank of a nuclear reactor. This method establishes a unified internal measurement and control coordinate system by setting an inverted L-shaped measuring fixture inside the water tank and connecting it with external plant control network points. This ensures that all subsequent layout, adjustment, and verification work is carried out under the same coordinate system, guaranteeing the continuity and consistency of measurement data. By setting up support structures, horizontal support components, and radius limit blocks, combined with curved surface attitude guiding fixtures, the radial positioning position and hyperboloid attitude of the curved embedded parts are effectively constrained. Precise positioning is achieved by aligning the embedded part surface with the guiding surface and the azimuth line with the baseline, allowing for attitude adjustment of the curved embedded parts in high-altitude, confined environments. Furthermore, by using measuring instruments to perform three-dimensional coordinate measurements on the installed curved embedded parts and calculating their three-dimensional radius deviation relative to the center of the containment dome, the parts are fixed after the deviation meets the preset accuracy requirements. This achieves quantitative evaluation of installation quality and ensures the final installation accuracy of the curved embedded parts.

[0019] The inverted L-shaped measuring fixture of the present invention includes a pre-embedded inverted L-shaped I-beam and a forced centering plate installed on the top of the inverted L-shaped I-beam, which enables the measuring instrument to be quickly set up and centered, improving the measurement efficiency and the accuracy of data acquisition; at the same time, at least eight inverted L-shaped measuring fixtures are set up to ensure that each fixture is mutually visible to each other, forming a measurement control network covering the entire construction area, providing a reference for subsequent layout.

[0020] This invention transforms the three-dimensional spatial positioning problem of hyperboloid slope embedded parts into a two-dimensional parameter calculation problem by using the calculation formulas for the radial distance value corresponding to the radius control line and the deviation of the azimuth control line. This allows construction personnel to accurately obtain the layout position through calculation, reducing the complexity of on-site operations.

[0021] This invention provides a rigid constraint on the radial positioning of the curved embedded part by setting a radius limiting block on the horizontal support component, located on the side of the radius control line facing the center of the dome, thus preventing positional deviation during construction. The angle of the curved surface attitude guiding fixture matches the curved surface angle of the embedded part to be installed, allowing the hyperboloid slope attitude of the embedded part to be quickly calibrated by fitting it against the surface of the curved surface attitude guiding fixture, reducing the difficulty of attitude adjustment. Attached Figure Description

[0022] Figure 1 : A plan view of the dome water tank and curved embedded parts of the nuclear reactor building of the present invention.

[0023] Figure 2 : An elevation view of the dome water tank and curved embedded parts of the nuclear reactor building of the present invention.

[0024] Figure 3 : Schematic diagram of the adjustment control of the curved surface embedded part of the present invention.

[0025] Figure 4 : A schematic diagram of the inverted L-shaped measuring fixture of the present invention.

[0026] Figure 5 : A schematic diagram of the support structure of the present invention.

[0027] Figure 6 : A schematic diagram of the curved surface posture guiding tool of the present invention.

[0028] In the diagram: 1. Containment dome, 2. Water tank wall, 3. Curved embedded part, 4. Inverted L-shaped measuring fixture point, 4-1. Forced centering plate, 4-2. Fixture horizontal beam, 4-3. Fixture column, 5. Curved attitude guiding fixture, 6. Support structure, 6-1. Vertical support reinforcement, 6-2. Horizontal support component. Detailed Implementation

[0029] The present invention will be further described in detail below through specific embodiments, but it should not be construed as limiting the scope of the subject matter of the present invention to the following embodiments. All technologies implemented based on the above content of the present invention fall within the scope of the present invention.

[0030] In one embodiment, this invention provides a method for locating and detecting the curved embedded part 3 of the containment dome water tank of a nuclear reactor, comprising the following steps: S1: Set up several inverted L-shaped measuring fixtures 4 at preset positions inside the water tank of the containment dome 1; set up measuring instruments on each inverted L-shaped measuring fixture 4 and connect them with the external plant area measuring control network to obtain the three-dimensional coordinates of each inverted L-shaped measuring fixture 4 and establish a unified measuring control coordinate system inside the water tank. S2: Based on the measurement control coordinate system, the installation position of the curved embedded part 3 is laid out using the inverted L-shaped measurement fixture 4 with the preset azimuth angle as the reference, the radius control line in space is determined, and the azimuth angle alignment status is checked by the deviation of the azimuth angle control line. S3: Based on the radius control line and azimuth alignment, set up the support structure 6 at the installation position obtained by the layout, and set up the horizontal support 6-2 on the top of the support structure 6; set up the radius limiting block on the horizontal support 6-2 according to the radius control line to limit the radial positioning position of the curved embedded part 3; S4: Hoist the curved embedded part 3 to the installation position, so that its bottom end abuts against the radius limiting block, and insert the curved attitude guide fixture 5, which has a guide surface; S5: Adjust the curved embedded part 3 so that its surface fits the guide surface of the curved attitude guide fixture 5 and the orientation line is aligned with the baseline of the curved attitude guide fixture 5. S6: Use measuring instruments to perform three-dimensional coordinate measurement on the installed curved embedded part 3, and calculate its three-dimensional radius deviation relative to the center of the containment dome 1 based on the measurement results. After the deviation meets the preset accuracy requirements, fix the curved embedded part 3 to complete the positioning test.

[0031] In step S1, as Figure 2 As shown, an inverted L-shaped measuring fixture 4 is set at a predetermined position inside the water tank of the containment dome 1. The inverted L-shaped measuring fixture 4 includes a pre-embedded inverted L-shaped I-beam and a forced centering plate 4-1 installed on top of the inverted L-shaped I-beam. The inverted L-shaped I-beam includes an I-beam fixture horizontal beam 4-2 and an I-beam fixture column 4-3, as shown. Figure 4As shown. The point support is set in the concrete wall, so that the inverted L-shaped measuring tool 4 is fixed in an integrated manner with the outer containment wall, ensuring the stability and reliability of the measuring benchmark during long-term construction; the tool horizontal beam 4-2 extends into the inner side of the outer containment wall, so that the forced centering plate 4-1 installed on the top of the inverted L-shaped I-beam can penetrate into the internal space of the containment dome 1, solving the technical problem of no measuring control points inside the containment dome 1 after the construction of the water tank outer wall.

[0032] At least eight inverted L-shaped measuring fixtures (4) should be set up, ensuring that all fixtures are visible to each other, forming a closed control network covering the entire annular area of ​​the water tank. Figure 1 As shown, single-point errors can be eliminated through adjustment calculations, providing a high-precision coordinate reference for subsequent layout, adjustment, and verification.

[0033] Measuring instruments were set up on each inverted L-shaped measuring fixture 4 and connected with the external plant area measurement and control network points to obtain the three-dimensional coordinates of each inverted L-shaped measuring fixture 4 and establish a unified measurement and control coordinate system inside the water tank.

[0034] In step S2, based on the measurement control coordinate system, the installation position of the curved embedded part 3 is laid out using the inverted L-shaped measurement fixture 4 with the preset azimuth angle as the reference, the radius control line in space is determined, and the azimuth angle alignment status is checked by the deviation of the azimuth angle control line. The formulas for calculating the radial distance value corresponding to the radius control line and the deviation of the azimuth control line are as follows:

[0035]

[0036] Where R is the radial distance of the radius control line, and T is the azimuth control line deviation. , These are the measured ordinate and abscissa of the stakeout point, respectively. , These are the ordinate and abscissa of the center of the reactor building, respectively. This is the preset azimuth angle.

[0037] The radius control line of the curved embedded part 3 in space is determined by calculation, and the azimuth alignment is verified by the deviation of the azimuth control line. When the deviation of the azimuth control line approaches zero, the layout point falls precisely on the direction ray of the preset azimuth angle, thus completing the verification of the azimuth alignment.

[0038] In step S3, based on the radius control line and azimuth alignment, a support structure 6 is installed at the layout-obtained installation location. For example... Figure 5As shown, the support structure 6 is a lattice structure formed by vertical support steel bars 6-1, which provides a stable operating platform for the curved embedded part 3, transforming high-altitude operations into fine adjustments near the platform; horizontal support 6-2 is welded to the top of the lattice, and the horizontal support 6-2 is a horizontal steel bar with a flatness of no more than 1mm to ensure the accuracy of subsequent positioning and adjustment work.

[0039] A radius limiting block is set on the horizontal support 6-2 according to the radius control line. The radius limiting block is a metal block fixedly connected to the horizontal support 6-2 and located on the side of the radius control line facing the center of the containment dome 1. It is fixed by spot welding. The radius limiting block forms a rigid constraint on the radial position of the curved embedded part 3 to avoid positional deviation during construction.

[0040] In step S4, the curved embedded part 3 is hoisted to the installation position, ensuring its bottom end abuts against the radius limiting block to guarantee the accurate radial position of the curved embedded part 3. Simultaneously, the curved surface attitude guiding fixture 5 is inserted, such as... Figure 6 As shown, the curved surface attitude guiding fixture 5 has a guiding surface. The curved surface attitude guiding fixture 5 is an angle steel component, the angle of which matches the curved surface angle of the curved embedded part 3 to be installed, and the shape of its guiding surface is adapted to the curved surface shape of the curved embedded part 3, so that the hyperboloid slope attitude of the curved embedded part 3 can be quickly calibrated by fitting with the angle steel surface, reducing the difficulty of attitude adjustment in high-altitude and narrow environments.

[0041] In step S5, as Figure 3 As shown, the curved embedded part 3 is adjusted so that its surface fits against the guide surface of the curved attitude guide fixture 5, and its orientation line is aligned with the baseline of the curved attitude guide fixture 5, so as to achieve precise positioning of the curved embedded part 3.

[0042] In step S6, a measuring instrument is used to perform three-dimensional coordinate measurements on the installed curved embedded part 3, and its solid radius deviation relative to the center of the containment dome 1 is calculated based on the measurement results. The formula for calculating the solid radius deviation is:

[0043] in, R is the deviation of the solid radius. , and To measure the three-dimensional coordinates of the embedded part 3 after installation. , and Let the three-dimensional coordinates of the center of the containment dome 1 be... Let be the theoretical radius of containment dome 1.

[0044] If the deviation of the three-dimensional radius meets the preset accuracy requirement, the curved embedded part 3 is fixed to complete the positioning test. The preset accuracy requirement is that the deviation of the three-dimensional radius is less than 3mm, ensuring that the final installation accuracy meets the requirements of the nuclear power plant's safety protection system.

[0045] To further understand the technical solution of the present invention, a detailed description is provided in conjunction with specific embodiments: This embodiment uses the water tank of containment dome 1 of the "Hualong One" nuclear reactor as an example.

[0046] The reactor building center coordinates are (X2938.000, Y4737.200), and the dome center elevation is... =44.600m, theoretical radius of the dome =25.600m. The curved embedded part 3 of the water tank is located at +59.850m of the outer dome, with a width of 1255mm. It is in the shape of a hyperboloid slope, with inner and outer radii ranging from 19.790m to 20.562m, and is arranged in four sections.

[0047] At a radius R = 25.800m and elevation +59.250m on the outer containment wall, an inverted L-shaped measuring fixture point 4 is selected. A total of eight inverted L-shaped measuring fixture points 4 are set up, designated QD01 to QD08, ensuring visual connectivity between each point. The fixture point supports are embedded in the concrete wall. Four M14 bolts are pre-embedded during the concrete pouring of the water tank wall 2. The fixture base is fixed using these pre-embedded bolts, and the fixture length is 1.5m.

[0048] Associating with no fewer than four points in the secondary network of the plant area, the coordinates of each inverted L-shaped measuring fixture point 4 were measured using the traverse method: QD01 (X2960.6795, Y4735.6403), QD02 (X2955.1422, Y4752.1935), QD03 (X2939.8337, Y4759.9605), QD04 (X2923.0735, Y4735.6403), QD02 (X2955.1422, Y4752.1935), QD03 (X2939.8337, Y4759.9605), QD04 (X2923.0735, Y4735.6403), QD04 (X2923.0735, Y4735.6403), QD04 (X2960.679 ... 754.4071), QD05 (X2915.3533, Y4738.9217), QD06 (X2920.5795, Y4722.5896), QD07 (X2936.2827, Y4714.3883), QD08 (X2952.9356, Y4720.0467); and based on this, a unified measurement and control coordinate system is established inside the water tank.

[0049] Using QD05 as the station point, and backsighted to QD06, the total station azimuth was set to 287°44'40.0". The azimuth of QD04 was checked and found to be 63°30'03.9", which meets the requirements. (The preset azimuth angle is then used.) The position of the curved embedded part 3 is marked on the surface of the steel reinforcement.

[0050] The coordinates obtained from the first layout are (X2919.7026, Y4745.3711). Calculate the radial distance corresponding to the radius control line and the azimuth control line deviation:

[0051]

[0052] The azimuth control line deviation is not zero, indicating that the stakeout point deviates from the preset azimuth direction. After moving 0.414m clockwise, the coordinates were measured again on the second stakeout (X2919.7133, Y4745.8255). Calculation:

[0053]

[0054] The azimuth control line deviation is approximately zero, meeting the requirements; mark the points. Repeat the above steps to lay out the azimuth and radius crosshairs respectively.

[0055] Supporting steel bars are installed around the cross at the installation location of the embedded parts and welded in place. The control elevation of the embedded parts is measured and set. Horizontal support steel bars, 400mm in length and with a flatness of 1mm, are welded to the top of the lattice frame. The starting position of the horizontal steel bars is 50mm from the center line of the cross towards the center of the dome.

[0056] Lay out the radius control line and orientation on the horizontal steel bar, and spot weld the radius limiting block. The radius limiting block is a 20×20×20 steel block, located 300mm away from the center of the dome and from the center line of the cross, on the side of the radius control line facing the center of the dome.

[0057] The single curved embedded part 3 is tied together and lifted to the dome installation position using a crane. The curved embedded part 3 is adjusted into position according to the installation orientation so that its bottom end abuts against the radius limiting block.

[0058] A curved surface posture guide fixture 5 is inserted into the upper opening of the horizontal steel bar. The curved surface posture guide fixture 5 is an angle steel component with a horizontal length of 300mm, an oblique length of 300mm, and an angle of 52°, which matches the curved surface angle of the curved embedded part 3. The bottom end of the fixture is flush with the limiting block, and the edge line of the angle steel is flush with the orientation line.

[0059] Adjust the embedded part 3 on the curved surface so that its orientation line is aligned with the baseline of the curved surface posture guide fixture 5, and the curved surface of the embedded part is aligned with the surface of the angle steel. Adjust each point along the entire section in sequence.

[0060] Using a total station, the three-dimensional coordinates of the installed curved embedded part 3 were measured. The measured three-dimensional coordinates of a certain embedded part are (X2919.4011, Y4745.9723, H59.8511). Calculate the deviation of the solid radius:

[0061]

[0062] R=2.1mm<3mm, which meets the preset accuracy requirements. The curved embedded part 3 is fixed to complete the positioning test.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A method for locating and detecting embedded parts on the curved surface of a containment dome water tank in a nuclear reactor, characterized in that, Includes the following steps: S1: Set up several inverted L-shaped measuring fixtures at predetermined locations inside the containment dome water tank; set up measuring instruments on each inverted L-shaped measuring fixture and connect them with the external plant area measurement and control network points to obtain the three-dimensional coordinates of each inverted L-shaped measuring fixture and establish a unified measurement and control coordinate system inside the water tank. S2: Based on the measurement and control coordinate system, the installation position of the curved embedded part is laid out using the inverted L-shaped measurement fixture with the preset azimuth angle as the reference, the radius control line in space is determined, and the azimuth angle alignment status is checked by the deviation of the azimuth angle control line. S3: Based on the radius control line and azimuth alignment, set up a support structure at the installation position obtained by layout, and set up a horizontal support on the top of the support structure; set up a radius limiting block on the horizontal support according to the radius control line to limit the radial positioning position of the curved embedded part; S4: Hoist the curved embedded part to the installation position, so that its bottom end abuts against the radius limiting block, and insert the curved attitude guide fixture, which has a guide surface; S5: Adjust the curved embedded part so that its surface fits the guide surface of the curved attitude guide fixture, and the orientation line is aligned with the baseline of the curved attitude guide fixture. S6: Use measuring instruments to perform three-dimensional coordinate measurement on the installed curved embedded part, and calculate its three-dimensional radius deviation relative to the center of the containment dome based on the measurement results. After the deviation meets the preset accuracy requirements, fix the curved embedded part to complete the positioning test.

2. The method for positioning and detecting the curved embedded parts of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: In step S1, the inverted L-shaped measuring fixture includes a pre-embedded inverted L-shaped I-beam and a forced centering plate installed on the top of the inverted L-shaped I-beam.

3. The method for locating and detecting the curved embedded parts of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: In step S1, at least eight inverted L-shaped measuring fixture points are set.

4. The method for locating and detecting the embedded parts on the curved surface of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: In step S2, the formulas for calculating the radial distance value corresponding to the radius control line and the deviation of the azimuth control line are as follows: Where R is the radial distance of the radius control line, and T is the azimuth control line deviation. , These are the measured ordinate and abscissa of the stakeout point, respectively. , These are the ordinate and abscissa of the center of the reactor building, respectively. This is the preset azimuth angle.

5. The method for positioning and detecting the embedded parts of the curved surface of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: The supporting structure is a lattice structure formed by vertical supporting steel bars; the horizontal supporting member is a horizontal steel bar welded to the top of the lattice.

6. The method for locating and detecting the embedded parts on the curved surface of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: The radius limiting block is a metal block fixedly connected to the horizontal support and located on the side of the radius control line facing the center of the containment dome.

7. The method for locating and detecting the embedded parts on the curved surface of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: In step S4, the curved surface posture guiding fixture is an angle steel component whose angle matches the curved surface angle of the curved embedded part to be installed, and whose guiding surface shape is adapted to the curved surface shape of the curved embedded part.

8. The method for locating and detecting the embedded parts on the curved surface of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: In step S6, the formula for calculating the three-dimensional radius deviation is: in, R is the deviation of the solid radius. , and To measure the three-dimensional coordinates of the embedded curved surface after installation. , and The three-dimensional coordinates of the center of the containment dome are: This is the theoretical radius of the containment dome.

9. The method for locating and detecting the embedded parts on the curved surface of the containment dome water tank of a nuclear reactor according to claim 1, characterized in that: The preset accuracy requirement is that the deviation of the three-dimensional radius is less than 3mm.

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