Sodium-cooled fast reactor three-cock core positioning angle calculation method, computer device, computer readable storage medium and computer program product

Abstract

The invention relates to the field of sodium-cooled fast reactors, in particular to a sodium-cooled fast reactor three-cock reactor core positioning angle calculation method, a computer device, a computer readable storage medium and a computer program product. The method comprises the following steps: generating a large cock corner set thetaall; a determined large cock corner is selected, and a fuel assembly position set Oall is solved; the position of one fuel assembly is selected from the fuel assembly position set OAll, the central position of a small cock, capable of being aligned with the fuel assembly, of the refueling machine is determined according to the rotating range of the middle cock and the rotating range of the small cock, and the rotating angle of the small cock and the rotating angle of the middle cock are calculated based on the central position of the small cock; traversing the fuel assembly position set Oall, and obtaining a cock positioning angle of each fuel assembly; and traversing the rotation angle set theta all of the large cock, and solving a complete solution set of all position positioning angles of the reactor core for each rotation angle theta of the large cock. According to the invention, rapid calculation of the complete solution set of the corner of the three-cock positioning system is realized.

Description

Technical Field

[0001] The present invention relates to the field of sodium-cooled fast reactors, and in particular to a method for calculating a three-plug core positioning angle of a sodium-cooled fast reactor, a computer device, a computer-readable storage medium and a computer program product. Background Art

[0002] The refueling of a sodium-cooled fast reactor is carried out in a sodium environment. The whole process is high temperature, closed and invisible. The replacement of components is completed by the cooperation of the plug and the refueling machine. The plug is responsible for positioning the refueling machine directly above the position of the component to be replaced, and the refueling machine is responsible for pulling out or inserting the component. The plug is divided into three nested rotating parts: the large plug, the middle plug and the small plug. The refueling machine is installed on the small plug. Through the rotation combination of the three plugs, the refueling machine can be aimed at any position of the core. The schematic diagram of the plug positioning is shown in Figure 1 .

[0003] The positioning control of the plug needs to solve two problems, including the plug positioning angle and calculation and the error correction in the plug positioning test.

[0004] The method for calculating the positioning angle of the plug is as follows: Assuming that the coordinates of the core assembly in the rectangular coordinate system are (X, Y), the rotation angles θ of the three plugs at (X, Y) are to be located. 大 ,θ 中 ,θ 小 The following relationship should be satisfied:

[0005]

[0006] Where L 1 The center of the large cock O 大 and the center of the middle plug O 中 The distance, L 2 The center of the plug O 中 and the center of the small stopcock O 小 The distance, L 3 The center of the small stopcock is O 小 and refueling machine center O H The above relationship has two characteristics:

[0007] First, (X, Y) and (θ 大 ,θ 中 ,θ 小 ) is a one-to-many relationship. To move the material changer to a specific component position, there are theoretically countless ways (θ 大 ,θ 中 ,θ 小 ) combination.

[0008] Second, it is difficult to 大 ,θ 中 ,θ 小Expressed as an analytical function of X and Y, that is, θ cannot be calculated by the formula 大 ,θ 中 ,θ 小 value.

[0009] Due to the needs of plug commissioning, position adjustment during operation, control optimization, etc., it is necessary to find the complete solution set of equation (1) under a given discreteness. For equation (1), general computing software uses a symbolic operation system combined with an iterative approximation method to solve it. It takes thousands of hours to calculate on an ordinary PC and has no practical significance. Therefore, it is necessary to design a special algorithm to solve equation (1). Summary of the invention

[0010] The technical problem to be solved by the present invention is: to provide a method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug, a computer device, a computer-readable storage medium and a computer program product, which realize the rapid calculation of the complete solution set of the three-plug positioning system angle.

[0011] The present invention provides a method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug reactor, comprising the following steps:

[0012] Step S1: discretize the large plug angle according to the preset step size to generate a large plug angle set θ all ;

[0013] Step S2: Select a certain large cock rotation angle, determine the fuel assembly position that can be located by the middle cock and the small cock regardless of how they are rotated, and calculate the fuel assembly position set O according to the geometric relationship. All ;

[0014] Step S3: At the fuel assembly position O All A fuel assembly position is selected, and according to the rotation range of the middle and small cocks, the center position of the small cock that the refueling machine can align with the fuel assembly position is determined, and the small cock rotation angle and the middle cock rotation angle are calculated based on the center position of the small cock;

[0015] Step S4: Traverse the fuel assembly position set O All , using the method of step S3, obtaining the cock positioning angle of each fuel assembly;

[0016] Step S5: Traverse the large plug rotation angle set θ all , for each large plug angle θ 大 , repeat steps S2 to S4 to obtain the complete solution set of positioning angles at all positions in the core.

[0017] In one embodiment of the present invention, in step S1, the rotation range of the large stopcock is from -180° to +180°, and the step length is 0.01 to 0.1°.

[0018] In one embodiment of the present invention, in step S2, the fuel assembly can only be located in an annular area, and the center of the annular area is the center of the middle plug. 中 , the radius of the inner circle of the ring is (L 2 -L 3 ), the outer radius of the ring is (L 2 +L 3 );

[0019] The L 1 The center of the large cock O 大 and the center of the middle plug O 中 The distance, L 2 The center of the plug O 中 and the center of the small stopcock O 小 The distance, L 3 The center of the small stopcock is O 小 and refueling machine center O H distance.

[0020] In one embodiment of the present invention, in step S3, the position of the selected fuel assembly is taken as the target, and the position set of the center of the small cock that meets the requirement is O H is the center of the circle and the radius is L 3 Circle C 1 ;

[0021] The small cock is rotated by the middle cock, and the actual trajectory of the small cock is centered on the middle cock. 中 is the center of the circle and the radius is L 2 Circle C 2 , circle C 1 and circle C 2 The intersection point O 小 and O T That is the center position of the small stopcock that meets the conditions.

[0022] In one embodiment of the present invention, if the center of the small stopcock is located at 小 , the calculation method of the small cock angle and the middle cock angle is:

[0023] |O H O 小 |=L 3 (2)

[0024] |O 中 O 小 |=|O 中 K|=L 2 (3)

[0025] |O H O 中 |=((X-cos(θ 大)*L 1 ) 2 +(Y - sin(θ 大 )*L 1 ) 2 ) 1 / 2 (4)

[0026] |O H |K| = ((X - cos(θ 大 )*(L 1 +L 2 )) 2 +(Y - sin(θ 大 )*(L 1 +L 2 )) 2 ) 1 / 2 (5)

[0028] Triangle O 中 O 小 O H In

[0029] θ 小 = arccos((|O 中 O 小 | 2 +|O H O 小 | 2 -|O H O 中 | 2 ) / (2*|O 中 O 小 |*|O H O 小 |))(6)

[0031] α 1 = arccos((|O 中 O 小 | 2 +|O H O 中 | 2 -|O H O 小 | 2 ) / (2*|O 中 O 小 |*|O H O 中 |))(7)

[0033] Triangle O 中 KO H In

[0034] α 0 = arccos((|O 中 K|2 +|O H O 中 | 2 -|O H K| 2 ) / (2*|O 中 K|*|O H O 中 |))(8)

[0036] θ 中 =α 0 -α 1 (9)

[0037] According to equations (9) and (6), we can obtain θ 中 and θ 小 , because θ 大 is known, so the fuel assembly O with coordinates (X, Y) is obtained H A set of positioning angles (θ 大 ,θ 中 ,θ 小 );

[0038] K point is O 大 With O 中 The line connecting the circle C 2 The intersection of .

[0039] In one embodiment of the present invention, if the center of the small cock is located at T , the calculation method of the small cock angle and the middle cock angle is:

[0040] |O H O T |=L 3 (10)

[0041] |O 中 O T |=|O 中 K|=L 2 (11)

[0042] |O H O 中 |=((X-cos(θ 大 )*L 1 ) 2 +(Y-sin(θ 大 )*L 1 ) 2 ) 1 / 2 (4)

[0043] |O H K|=((X-cos(θ 大 )*(L 1 +L 2)) 2 +(Y - sin(θ 大 )*(L 1 + L 2 )) 2 ) 1 / 2 (5)

[0045] Triangle O 中 O T O H In,

[0046] θ 小 = arccos((|O 中 O T | 2 + |O H O T | 2 - |O H O 中 | 2 ) / (2 * |O 中 O T | * |O H O T |))(12)

[0048] α 1 = arccos((|O 中 O T | 2 + |O H O 中 | 2 - |O H O T | 2 ) / (2 * |O 中 O T | * |O H O 中 |))(13)

[0050] Triangle O 中 KO H In,

[0051] α 0 = arccos((|O 中 K| 2 + |O H O 中 | 2 - |O H K| 2 ) / (2 * |O 中 K| * |O H O 中 |))(8)

[0053] θ 中 = ∠OT O 中 K=α 0 +α 1 (14)

[0054] According to equations (14) and (12), we can obtain θ 中 and θ 小 , because θ 大 is known, so the fuel assembly O with coordinates (X, Y) is obtained H A set of positioning angles (θ 大 ,θ 中 ,θ 小 );

[0055] K point is O 大 With O 中 The line connecting the circle C 2 The intersection of .

[0056] In one embodiment of the present invention, the quadrant and sign of each angle also need to be considered in step S3. The 0 degree of the middle and small cocks are rotated to the positive direction of the X axis by rotation transformation, and only the 0 degree of the middle and small cocks are considered. 小 , O H The quadrant position in the rectangular coordinate system after transformation is sufficient, including:

[0057] When solving the rotation angle of the middle plug, 小 O 大 The center is -θ. 大 Rotation transformation. 大 In a rectangular coordinate system with O as the origin, if 小 If it is above the X-axis, the sign is positive; if it is below the X-axis, the sign is negative.

[0058] When solving the small cock angle, O H O 大 The center is -θ. 大 Rotation transformation, then O 中 The center is -θ. 中 Rotation transformation. 中 In a rectangular coordinate system with O as the origin, if H If it is above the X-axis, the sign is negative; if it is below the X-axis, the sign is positive.

[0059] The present invention provides a computer device, comprising: a processor, for executing the method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug according to claims 1 to 7; and

[0060] A memory is used to store executable instructions of the processor.

[0061] The present invention provides a computer-readable storage medium on which computer executable instructions are stored. When the executable instructions are executed by a processor, the method for calculating the core positioning angle of a sodium-cooled fast reactor with three plugs is realized.

[0062] The present invention provides a computer program product, comprising a computer program / instruction, wherein when the computer program / instruction is executed by a processor, the method for calculating the core positioning angle of a sodium-cooled fast reactor with three plugs is realized.

[0063] Compared with the prior art, the present invention realizes the rapid calculation of the complete solution set of the three-cock positioning system angle of a sodium-cooled fast reactor, and greatly improves the calculation speed compared with the conventional method based on the symbolic operation system and iterative approximation, so that the software developed based on this method has practical value on personal computers. It has been proved by experiments that on an Intel E3-1230 V2 CPU, when the large cock step size is 0.1 degrees, the typical value of the calculation time is 35 seconds. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A schematic diagram showing the positioning of the three-plug core of a sodium-cooled fast reactor;

[0065] Figure 2 It represents the geometric constraint relationship between the positioning range of the middle and small cocks when the angle of the large cock is fixed;

[0066] Figure 3 Represents θ 大 Under certain conditions, θ 中 ,θ 小 Schematic diagram of geometric solution;

[0067] Figure 4 It shows the running interface of the plug positioning simulation software. DETAILED DESCRIPTION

[0068] In order to further understand the present invention, the embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the present invention.

[0069] An embodiment of the present invention discloses a method for calculating a core positioning angle of a sodium-cooled fast reactor with three plugs, comprising the following steps:

[0070] Step S1: discretize the large plug angle according to the preset step size to generate a large plug angle set θ all ;

[0071] The rotation range of the large stopcock is -180° to +180°, and the typical range of the step size is 0.01 to 0.1°.

[0072] For example, each step is 0.1 degrees, generating a large set of plug angles θ all =[-180 -179.9…-0.1 0 0.1…179.9180].

[0073] Step S2: Select a certain large cock rotation angle, the selected large cock rotation angle θ 大 ∈θ all Based on the rotation angle of the large cock, no matter how the middle cock and the small cock rotate, the fuel assembly position that can be located can only be located at Figure 2 The center of the annular region R is the center of the middle plug O. 中 , the radius of the inner circle of the ring is (L 2 -L 3 ), the outer radius of the ring is (L 2 +L 3 );According to the geometric relationship, the fuel assembly position set O is obtained All ;

[0074] The L 1 The center of the large cock O 大 and the center of the middle plug O 中 The distance, L 2 The center of the plug O 中 and the center of the small stopcock O 小 The distance, L 3 The center of the small stopcock is O 小 and refueling machine center O H distance.

[0075] Step S3: At the fuel assembly position O All A fuel assembly position is selected, and according to the rotation range of the middle and small cocks, the center position of the small cock that the refueling machine can align with the fuel assembly position is determined, and the small cock rotation angle and the middle cock rotation angle are calculated based on the center position of the small cock;

[0076] Specifically, with the position of the selected fuel assembly as the target, H ∈O All , then the position set of the small stopper center that meets the requirements is O H is the center of the circle and the radius is L 3 Circle C 1 ;

[0077] The small cock is rotated by the middle cock, and the actual trajectory of the small cock is centered on the middle cock. 中 is the center of the circle and the radius is L 2 Circle C 2 , circle C 1 and circle C 2 The intersection point O 小 and O TThat is, the center position of the small stopcock that meets the conditions, see Figure 3 .

[0078] If the center of the small cock is located at O 小 , the calculation method of the small cock angle and the middle cock angle is:

[0079] |O H O 小 |=L 3 (2)

[0080] |O 中 O 小 |=|O 中 K|=L 2 (3)

[0081] |O H O 中 |=((X-cos(θ 大 )*L 1 ) 2 +(Y-sin(θ 大 )*L 1 ) 2 ) 1 / 2 (4)

[0082] |O H K|=((X-cos(θ 大 )*(L 1 +L 2 )) 2 +(Y-sin(θ 大 )*(L 1 +L 2 )) 2 ) 1 / 2 (5)

[0084] Triangle O 中 O 小 O H middle,

[0085] θ 小 =arccos((|O 中 O 小 | 2 +|O H O 小 | 2 -|O H O 中 | 2 ) / (2*|O 中 O 小 |*|O H O 小 |))(6)

[0087] α1 =arccos((|O 中 O 小 | 2 +|O H O 中 | 2 -|O H O 小 | 2 ) / (2*|O 中 O 小 |*|O H O 中 |))(7)

[0089] Triangle O 中 KO H middle,

[0090] α 0 =arccos((|O 中 K| 2 +|O H O 中 | 2 -|O H K| 2 ) / (2*|O 中 K|*|O H O 中 |))(8)

[0092] θ 中 =α 0 -α 1 (9)

[0093] According to equations (9) and (6), we can obtain θ 中 and θ 小 , because θ 大 is known, so the fuel assembly O with coordinates (X, Y) is obtained H A set of positioning angles (θ 大 ,θ 中 ,θ 小 );

[0094] K point is O 大 With O 中 The line connecting the circle C 2 The intersection of .

[0095] If the center of the small cock is located at O T , the calculation method of the small cock angle and the middle cock angle is:

[0096] |O H O T |=L 3 (10)

[0097] |O中 O T |=|O 中 K|=L 2 (11)

[0098] |O H O 中 |=((X - cos(θ 大 ) * L 1 ) 2 +(Y - sin(θ 大 ) * L 1 ) 2 ) 1 / 2 (4)

[0099] |O H K|=((X - cos(θ 大 ) * (L 1 +L 2 )) 2 +(Y - sin(θ 大 ) * (L 1 +L 2 )) 2 ) 1 / 2 (5)

[0101] Triangle O 中 O T O H In,

[0102] θ 小 =arccos((|O 中 O T | 2 +|O H O T | 2 -|O H O 中 | 2 ) / (2 * |O 中 O T | * |O H O T |))(12)

[0104] α 1 =arccos((|O 中 O T | 2 +|O H O 中 | 2 -|O H O T | 2 ) / (2 * |O 中 O T | * |O H O中 |))(13)

[0106] Triangle O 中 KO H middle,

[0107] α 0 =arccos((|O 中 K| 2 +|O H O 中 | 2 -|O H K| 2 ) / (2*|O 中 K|*|O H O 中 |))(8)

[0109] From the above, we can get:

[0110] θ 中 =∠O T O 中 K=α 0 +α 1 (14)

[0111] According to equations (14) and (12), we can obtain θ 中 and θ 小 , because θ 大 is known, so the fuel assembly O with coordinates (X, Y) is obtained H A set of positioning angles (θ 大 ,θ 中 ,θ 小 );

[0112] K point is O 大 With O 中 The line connecting the circle C 2 The intersection of .

[0113] In actual calculation, the quadrant and sign of each angle also need to be considered. By rotating the middle and small cocks to the positive direction of the X axis, only the O 小 , O H The quadrant position in the rectangular coordinate system after transformation is sufficient, including:

[0114] When solving the rotation angle of the middle plug, 小 O 大 The center is -θ. 大 Rotation transformation. 大 In a rectangular coordinate system with O as the origin, if 小 If it is above the X-axis, the sign is positive; if it is below the X-axis, the sign is negative.

[0115] When solving the small cock angle, O H O 大 The center is -θ. 大 Rotation transformation, then O 中 The center is -θ. 中 Rotation transformation. 中 In a rectangular coordinate system with O as the origin, if H If it is above the X-axis, the sign is negative; if it is below the X-axis, the sign is positive.

[0116] Step S4: Traverse the fuel assembly position set O All , using the method of step S3, obtaining the cock positioning angle of each fuel assembly;

[0117] Step S5: Traverse the large plug rotation angle set θ all , for each large plug angle θ 大 , repeat steps S2 to S4 to obtain the complete solution set of positioning angles at all positions in the core.

[0118] An embodiment of the present invention further provides a computer device, including a processor and a memory.

[0119] A computer program is run on the processor, and the processor running the computer program can implement the method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug described in the above technical solution; to ensure the calculation speed, the main calculations are implemented using matrix operations.

[0120] The memory is used to store executable instructions of the processor, such as application programs.

[0121] An embodiment of the present invention further provides a computer-readable storage medium on which computer executable instructions are stored. When the executable instructions are executed by a processor, the method for calculating the core positioning angle of a sodium-cooled fast reactor with three plugs is implemented.

[0122] A computer program product comprises a computer program / instruction, wherein when the computer program / instruction is executed by a processor, the method for calculating the core positioning angle of a sodium-cooled fast reactor with three plugs is realized.

[0123] The computer program / instructions complete the calculation of the cock positioning angle under cold and hot conditions. On this basis, the three-cock positioning process is simulated through a graphical interface, the optimal cock positioning angle is given according to the principle of minimum movement angle, and various data are calculated and displayed in real time according to the mouse movement. The software operation interface is shown in Figure 4 .

[0124] The above embodiments are only used to help understand the method and core idea of ​​the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0125] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for calculating the core positioning angle of a sodium-cooled fast reactor with three plugs, characterized in that: The following steps are involved: Step S1: discretize the large plug angle according to the preset step size to generate a large plug angle set θ all ; Step S2: Select a certain large cock rotation angle, determine the fuel assembly position that can be located by the middle cock and the small cock regardless of how they are rotated, and calculate the fuel assembly position set O according to the geometric relationship. All ; Step S3: At the fuel assembly position O All A fuel assembly position is selected, and according to the rotation range of the middle and small cocks, the center position of the small cock that the refueling machine can align with the fuel assembly position is determined, and the small cock rotation angle and the middle cock rotation angle are calculated based on the center position of the small cock; Step S4: Traverse the fuel assembly position set O All , using the method of step S3, obtaining the cock positioning angle of each fuel assembly; Step S5: Traverse the large plug rotation angle set θ all , for each large plug angle θ 大 , repeat steps S2 to S4 to obtain the complete solution set of positioning angles at all positions in the core.

2. The method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug reactor according to claim 1, characterized in that: In the step S1, the rotation range of the large stopcock is from -180° to +180°, and the step length is 0.01 to 0.1°.

3. The method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug reactor according to claim 1, characterized in that: In step S2, the fuel assembly can only be located in the annular area, and the center of the annular area is the center of the middle plug. 中 , the radius of the inner circle of the ring is (L2-L3), and the radius of the outer circle of the ring is (L2+L3); The L1 is the center of the large plug O 大 and the center of the middle plug O 中 The distance L2 is the center of the middle plug O 中 and the center of the small stopcock O 小 The distance L3 is the center of the small stopcock O 小 and refueling machine center O H distance.

4. The method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug reactor according to claim 1, characterized in that: In step S3, the position of the selected fuel assembly is taken as the target, and the position set of the center of the small cock that meets the requirement is 0 H is a circle C1 with a center and a radius of L3; The small cock is rotated by the middle cock, and the actual trajectory of the small cock is centered on the middle cock. 中 The center of the circle is C2, the radius is L2, and the intersection point O of the circle C1 and the circle C2 is 小 and O T That is the center position of the small stopcock that meets the conditions.

5. The method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug reactor according to claim 4, characterized in that: If the center of the small cock is located at O 小 , the calculation method of the small cock angle and the middle cock angle is: |About H ABOUT 小 |=L3 (2) |Or 中 EITHER 小 |=|Or 中 K|=L2 (3) |Or H EITHER 中 |=((X-cos(θ 大 )*L1) 2 +(Y-sin(θ 大 )*L1) 2 ) 1 / 2 (4) |Or H K|=((X-cos(θ 大 )*(L1+L2)) 2 +(Y-sin(θ 大 )*(L1+L2)) 2 ) 1 / 2 (5) Triangle O 中 O 小 O H middle, θ 小 =arccos((|The 中 THE 小 | 2 +|O H THE 小 | 2 -|The H THE 中 | 2 ) / (2*|The 中 THE 小 |*|The H THE 小 |)) (6) α1=arccos((|O 中 THE 小 | 2 +|O H THE 中 | 2 -|The H THE 小 | 2 ) / (2*|The 中 THE 小 |*|The H THE 中 |)) (7) triangle O 中 KO H Inside, α0=arccos((|O 中 K| 2 +|O H THE 中 | 2 -|The H K| 2 ) / (2*|The 中 K|*|O H THE 中 |)) (8) i 中 =α0-α1 (9) According to equations (9) and (6), we can obtain θ 中 and θ 小 , because θ 大 is known, so the fuel assembly O with coordinates (X, Y) is obtained H A set of positioning angles (θ 大 ,θ 中 ,θ 小 ); K point is O 大 With O 中 The intersection of the line connecting and circle C2.

6. The method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug reactor according to claim 4, characterized in that: If the center of the small cock is located at O T , the calculation method of the small cock angle and the middle cock angle is: |About H ABOUT T |=L3 (10) |Or 中 EITHER T |=|Or 中 K|=L2 (11) |Or H EITHER 中 |=((X-cos(θ 大 )*L1) 2 +(Y-sin(θ 大 )*L1) 2 ) 1 / 2 (4) |Or H K|=((X-cos(θ 大 )*(L1+L2)) 2 +(Y-sin(θ 大 )*(L1+L2)) 2 ) 1 / 2 (5) Triangle O 中 O T O H middle, θ 小 =arccos((|The 中 THE T | 2 +|O H THE T | 2 -|The H THE 中 | 2 ) / (2*|The 中 THE T |*|The H THE T |)) (12) α1=arccos((|O 中 THE T | 2 +|O H THE 中 | 2 -|The H THE T | 2 ) / (2*|The 中 THE T |*|The H THE 中 |)) (13) triangle O 中 KO H Inside, α0=arccos((|O 中 K| 2 +|O H THE 中 | 2 -|The H K| 2 ) / (2*|The 中 K|*|O H THE 中 |)) (8) i 中 =∠O T The 中 K=α0+α1 (14) According to equations (14) and (12), we can obtain θ 中 and θ 小 , because θ 大 is known, so the fuel assembly O with coordinates (X, Y) is obtained H A set of positioning angles (θ 大 ,θ 中 ,θ 小 ); K point is O 大 With O 中 The intersection of the line connecting and circle C2.

7. The method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug reactor according to claim 1, characterized in that: In step S3, the quadrant and sign of each angle also need to be considered. By rotating the middle and small cocks to the positive direction of the X axis, only the 0 degrees are considered. 小 , O H The quadrant position in the rectangular coordinate system after transformation is sufficient, including: When solving the rotation angle of the middle plug, 小 O 大 The center is -θ. 大 Rotation transformation. 大 In a rectangular coordinate system with the origin as 小 If it is above the X-axis, the sign is positive; if it is below the X-axis, the sign is negative. When solving the small cock angle, O H O 大 The center is -θ. 大 Rotation transformation, then O 中 The center is -θ. 中 Rotation transformation. 中 In a rectangular coordinate system with the origin as H If it is above the X-axis, the sign is negative; if it is below the X-axis, the sign is positive.

8. A computer device, characterized in that: include: A processor, configured to execute the method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug according to any one of claims 1 to 7; as well as A memory is used to store executable instructions of the processor.

9. A computer-readable storage medium having computer executable instructions stored thereon, characterized in that: When the executable instructions are executed by the processor, the method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug according to any one of claims 1 to 7 is implemented.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instruction is executed by a processor, the method for calculating the core positioning angle of a sodium-cooled fast reactor three-plug according to any one of claims 1 to 7 is implemented.

Images