WO2022052900A1

WO2022052900A1 - Method for adjusting control rods of nuclear power reactor core, and nuclear power reactor core

Info

Publication number: WO2022052900A1
Application number: PCT/CN2021/116859
Authority: WO
Inventors: 王欣欣; 段蓉; 蔡德昌; 卢向晖; 芮旻; 何明涛
Original assignee: 中广核研究院有限公司; 中国广核集团有限公司; 中国广核电力股份有限公司
Priority date: 2020-09-08
Filing date: 2021-09-07
Publication date: 2022-03-17
Also published as: CN112233824A

Abstract

A method for adjusting control rods of a nuclear power reactor core, and a nuclear power reactor core. The method for adjusting control rods of a nuclear power reactor core comprises: receiving an adjustment instruction (S1); and adjusting the positions of control rods one by one according to the adjustment instruction (S2). Before the adjustment instruction is received, the method also comprises: generating the adjustment instruction according to the amount of power to be adjusted and/or the amount of temperature to be adjusted of a nuclear power reactor core. The nuclear power reactor core does not contain soluble boron. The existing movement of all control rods as a whole is optimized to be the movement of a single control rod, such that the amount of movement each time becomes smaller and more accurate, the disturbance to a nuclear power reactor core is reduced, and refined control over the nuclear power reactor core is realized.

Description

Nuclear power reactor core control rod adjustment method and nuclear power reactor core

technical field

The invention relates to the field of nuclear power, and more particularly, to a method for adjusting a control rod of a nuclear power reactor core and a nuclear power reactor core.

Background technique

Control rod assemblies provide sufficient negative reactivity to maintain core subcriticality when used primarily for power compensation, temperature regulation, and shutdown in the reactor. Multiple groups of control rods will be arranged in the core to control the reactivity of the core. For the core without soluble boron, the reactivity of the core is controlled only by control rods.

There is a stacking relationship between the multiple sets of control rods used to control the core power and temperature. The purpose is to introduce reactivity while reducing the influence on the shape of the axial power distribution. For example, in the stacking region, different control rods The group actions are consistent, or “everything moves, nothing moves”. Due to the consistency of the control rod movements, the reactivity of the core is introduced to a large extent, and the disturbance is also large. In the non-soluble boron reactor In the core, the maximum differential value of the control rod can reach hundreds of pcm/step, especially in the fast transient condition of load rejection, it is difficult for the core to reach equilibrium within the required time.

technical problem

The technical problem to be solved by the present invention is to provide a nuclear power reactor core control rod adjustment method and a nuclear power reactor core in view of the above-mentioned defects of the prior art.

technical solutions

The technical solution adopted by the present invention to solve the technical problem is to construct a method for adjusting the control rods of the core of a nuclear power reactor, including:

receive adjustment instructions;

The positions of the control rods are adjusted one by one according to the adjustment instructions.

Further, in the nuclear power reactor core control rod adjustment method of the present invention, the receiving an adjustment instruction includes: receiving a drop-in adjustment instruction;

The adjusting the positions of the control rods one by one according to the adjustment instruction includes: inserting the control rods one by one according to the lowering adjustment instruction.

Further, in the method for adjusting control rods of a nuclear power reactor core according to the present invention, the step of inserting the control rods one by one according to the inserting adjustment instruction includes:

The insertion adjustment instruction includes insertion sequence and insertion distance of each of the control rods, and the control rods are inserted one by one according to the insertion sequence and the insertion distance.

Further, in the method for adjusting control rods of a nuclear power reactor core according to the present invention, the step of inserting the control rods one by one according to the insertion sequence and the insertion distance includes:

After the control rod in the first order completes the down insertion according to the corresponding down insertion distance, the control rod in the latter order starts down insertion, and completes down insertion according to the corresponding down insertion distance, until all the described down insertion distances are completed. The control rod is fully inserted.

Further, in the nuclear power reactor core control rod adjustment method of the present invention, the receiving an adjustment instruction includes: receiving a lifting adjustment instruction;

The adjusting the positions of the control rods one by one according to the adjustment instruction includes: lifting the control rods one by one according to the lifting adjustment instruction.

Further, in the nuclear power reactor core control rod adjustment method according to the present invention, the lifting of the control rods one by one according to the lifting adjustment instruction includes:

The lifting adjustment instruction includes a lifting sequence and a lifting distance of each of the control rods, and the control rods are lifted one by one according to the lifting sequence and the lifting distance.

Further, in the method for adjusting control rods of a nuclear power reactor core according to the present invention, the lifting of the control rods one by one according to the lifting sequence and the lifting distance includes:

After the control rods ranked first are lifted according to the corresponding lifting distances, the control rods ranked last start lifting and complete lifting according to the corresponding lifting distances until all the control rods are lifted.

Further, in the nuclear power reactor core control rod adjustment method according to the present invention, before the receiving the adjustment instruction, the method further includes:

The adjustment instruction is generated according to the power to be adjusted amount and/or the temperature to be adjusted amount of the nuclear power reactor core.

Further, in the nuclear power reactor core control rod adjustment method of the present invention, the nuclear power reactor core does not contain soluble boron.

The present invention also provides a nuclear power reactor core control rod adjustment method, comprising:

Provide a preset rod position table, the rod position table is provided with a stacking step area, and there is a stacking step relationship among the plurality of control rod groups in the stacking step area;

receive adjustment instructions;

Adjust the position of each of the control rod groups corresponding to the stacked step area one by one according to the adjustment instruction;

Wherein, each of the control rod groups includes one or more control rods.

Further, in the method for adjusting control rods of a nuclear power reactor core according to the present invention, the adjustment instruction includes a downwardly inserted adjustment instruction, and during adjustment, each of the control rod groups is adjusted one by one according to the downwardly inserted adjustment instruction.

Further, in the method for adjusting control rods of a nuclear power reactor core according to the present invention, the inserting adjustment instruction includes the inserting sequence and the inserting distance of each control rod group, according to the inserting sequence and the inserting distance. The control rod groups are inserted one by one according to the insertion distance; the control rod groups that are not in the same insertion sequence do not produce linkage action.

Further, in the nuclear power reactor core control rod adjustment method of the present invention, when the control rod groups are inserted one by one according to the insertion sequence and the insertion distance,

After the control rod group in the first order completes the down insertion according to the corresponding down insertion distance, the control rod group in the latter order starts down insertion, and completes down insertion according to the corresponding down insertion distance, until all the down insertion distances are completed. The control rod group is inserted downward.

Further, in the nuclear power reactor core control rod adjustment method of the present invention, the adjustment instruction includes: an upward adjustment instruction; during adjustment, each of the control rod groups is adjusted one by one according to the upward adjustment instruction.

Further, in the nuclear power reactor core control rod adjustment method of the present invention, the lifting adjustment instruction includes a lifting order and a lifting distance of each of the control rod groups, according to the lifting order and the lifting distance. The lifting distance lifts the control rod groups one by one, and the control rod groups that are not in the same lifting sequence do not produce a linkage action.

Further, in the nuclear power reactor core control rod adjustment method according to the present invention, when the control rod groups are lifted one by one according to the lifting order and the lifting distance,

After the control rod group in the first order is lifted up according to the corresponding lifting distance, the control rod group in the latter order starts the lifting, and completes the lifting according to the corresponding lifting distance, until all the control rod groups are lifted up. The control rod group is lifted up.

Further, in the nuclear power reactor core control rod adjustment method according to the present invention, before receiving the adjustment instruction, the method further includes:

In addition, the present invention also provides a nuclear power reactor core, which includes a plurality of control rod groups, and the control rod groups are adjusted by using the control rod adjustment method for a nuclear power reactor core as described above.

beneficial effect

Implementing the method for adjusting the control rods of the nuclear power reactor core and the nuclear power reactor core of the present invention has the following beneficial effects: the present invention can optimize the overall movement of all existing control rods to the movement of a single control rod group by receiving adjustment instructions, The position of each control rod group in the corresponding stacking area is adjusted one by one, so that the amount of each movement is smaller and more accurate, the disturbance to the core of the nuclear power reactor is reduced, and the fine control of the core of the nuclear power reactor is realized.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a flowchart of a method for adjusting control rods in a nuclear power reactor core provided in Embodiment 1;

2 is a flowchart of a method for adjusting control rods in a nuclear power reactor core provided in Embodiment 2;

3 is a flowchart of a method for adjusting control rods in a nuclear power reactor core provided in Embodiment 3;

Fig. 4 is the schematic diagram of the control rod stacking step down insertion process provided by embodiment 3;

5 is a flowchart of a method for adjusting control rods in a nuclear power reactor core provided in Embodiment 4;

6 is a flowchart of a method for adjusting control rods in a nuclear power reactor core provided in Embodiment 5;

FIG. 7 is a schematic diagram of the stacking and lifting process of the control rods provided in Embodiment 5. FIG.

Embodiments of the present invention

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Example 1

Referring to FIG. 1 , a method for adjusting control rods in a nuclear power reactor core according to this embodiment can be used as a method for moving step by step control rods in a nuclear power reactor core, and is applied to the core of a nuclear power plant reactor. The nuclear power plant reactor core includes a plurality of control rods. Each control rod corresponds to an independent driving mechanism, the driving mechanism drives the control rod to insert or lift, and the driving mechanism may refer to the prior art. The multiple drive mechanisms are controlled by the control terminal, which can independently control the work of each drive mechanism. Alternatively, the nuclear power reactor core of this embodiment does not contain soluble boron. Specifically, the nuclear power reactor core control rod adjustment method includes the following steps:

S1. Receive an adjustment instruction. The control terminal receives adjustment instructions for adjusting one or more control rods. The adjustment instructions can be directly input by the nuclear power plant staff to the control terminal, that is, the control terminal receives the adjustment instructions input by the nuclear power plant staff. Alternatively, the adjustment instruction can also be generated from the acquired nuclear power reactor core parameters, for example, the adjustment instruction is generated according to the amount to be adjusted of the power of the nuclear power reactor core, or the adjustment instruction is generated according to the amount to be adjusted of the temperature of the nuclear power reactor core, or according to the nuclear power reactor core. The power to be adjusted amount and the temperature to be adjusted amount of the core generate adjustment instructions and the like.

S2. Adjust the positions of the control rods one by one according to the adjustment instructions. The control terminal controls the movement of each drive mechanism one by one according to the adjustment instructions, that is, only one drive mechanism can work at the same time, and after one drive mechanism completes the movement, the other drive mechanisms start to move.

In this embodiment, the overall movement of all existing control rods is optimized to a single control rod movement, so that each movement is smaller and more accurate, the disturbance to the core of the nuclear power reactor is reduced, and the fine control of the core of the nuclear power reactor is realized. .

Example 2

Referring to FIG. 2 , a method for adjusting control rods in a nuclear power reactor core of this embodiment is applied to a nuclear power plant reactor core. The nuclear power plant reactor core includes a plurality of control rods, each control rod corresponds to an independent driving mechanism, and the driving mechanism The control rod is driven to insert downward, and the driving mechanism can refer to the prior art. The multiple drive mechanisms are controlled by the control terminal, which can independently control the work of each drive mechanism. Alternatively, the nuclear power reactor core of this embodiment does not contain soluble boron. Specifically, the nuclear power reactor core control rod adjustment method includes the following steps:

S11. Receive a drop-down adjustment instruction. The control terminal receives a drop-in adjustment instruction for adjusting one or more control rods. The down-plug adjustment instruction can be directly input by the nuclear power plant staff to the control terminal, that is, the control terminal receives the down-plug adjustment instruction input by the nuclear power plant staff. Alternatively, the downward interpolation adjustment command can also be generated from the acquired nuclear power reactor core parameters, for example, the downward interpolation adjustment command is generated according to the power to be adjusted of the nuclear power reactor core, or the downward interpolation adjustment is generated according to the nuclear power reactor core temperature to be adjusted. instruction, or generate down-insertion adjustment instructions according to the power to be adjusted amount and the temperature to be adjusted amount of the nuclear power reactor core.

S21. Insert the control rods one by one according to the downward insertion adjustment instruction. The control terminal controls the movement of each drive mechanism one by one according to the insert adjustment instruction, that is, only one drive mechanism can work at the same time, and after one drive mechanism completes the movement, the other drive mechanisms start to move.

In this embodiment, the overall movement of all existing control rods is optimized to the movement of a single control rod, so that the movement amount of each downward insertion is smaller and more accurate, the disturbance to the core of the nuclear power reactor is reduced, and the fineness of the core of the nuclear power reactor is realized. control.

Example 3

Referring to FIG. 3 , a method for adjusting control rods in a nuclear power reactor core of this embodiment is applied to a nuclear power plant reactor core. The nuclear power plant reactor core includes a plurality of control rods, each control rod corresponds to an independent driving mechanism, and the driving mechanism The control rod is driven to insert downward, and the driving mechanism can refer to the prior art. The multiple drive mechanisms are controlled by the control terminal, which can independently control the work of each drive mechanism. Alternatively, the nuclear power reactor core of this embodiment does not contain soluble boron. Specifically, the nuclear power reactor core control rod adjustment method includes the following steps:

S211. The downward insertion adjustment instruction includes the insertion order and insertion distance of each control rod, and the control rods are inserted one by one according to the insertion order and insertion distance. Specifically, the insertion sequence is set according to the control requirements of the nuclear power reactor core, and can also be flexibly set as required; the insertion distance is set according to the control requirements of the nuclear power reactor core, and can also be flexibly set according to needs. After the control rods in the first order are inserted according to the corresponding insertion distance, the control rods in the latter order start the insertion, and complete the insertion according to the corresponding insertion distance, until all the control rods are inserted.

Referring to Figure 4, a diagram of the insertion process of 3 control rods in the R rod group is given. The initial rods of the 3 control rods are R1, R2, and R3, which are 140, 145, and 200, and R1 is first inserted by 1 unit. The position is updated to 139; after R2 is inserted 1 unit, the position is updated to 144; after completion, a unit is inserted under R3, and the position is updated to 199.

Example 4

Referring to FIG. 5 , a method for adjusting control rods in a nuclear power reactor core in this embodiment is applied to a nuclear power plant reactor core. The nuclear power plant reactor core includes a plurality of control rods, each control rod corresponds to an independent driving mechanism, and the driving mechanism The control rod is driven to lift, and the driving mechanism can refer to the prior art. The multiple drive mechanisms are controlled by the control terminal, which can independently control the work of each drive mechanism. Alternatively, the nuclear power reactor core of this embodiment does not contain soluble boron. Specifically, the nuclear power reactor core control rod adjustment method includes the following steps:

S12. Receive a lift adjustment instruction. The control terminal receives lift adjustment instructions for adjusting one or more control rods. The lifting adjustment instruction can be directly input by the nuclear power plant staff to the control terminal, that is, the control terminal receives the lifting adjustment instruction input by the nuclear power plant staff. Alternatively, the lift adjustment command can also be generated from the acquired nuclear power reactor core parameters, for example, the lift adjustment command is generated according to the power to be adjusted amount of the nuclear power reactor core, or the lift adjustment command is generated according to the nuclear power reactor core temperature to be adjusted, or According to the power to be adjusted amount and the temperature to be adjusted amount of the core of the nuclear power reactor, a lifting adjustment command and the like are generated.

S22, lift the control rods one by one according to the lifting adjustment instruction. The control terminal controls the movement of each driving mechanism one by one according to the lifting adjustment instructions, that is, only one driving mechanism can work at the same time, and after one driving mechanism completes the movement, the other driving mechanisms start to move.

In this embodiment, the overall movement of all existing control rods is optimized to a single control rod movement, so that the movement amount of each lift is smaller and more accurate, the disturbance to the core of the nuclear power reactor is reduced, and the refinement of the core of the nuclear power reactor is realized. control.

Example 5

Referring to FIG. 6 , a method for adjusting control rods in a nuclear power reactor core of this embodiment is applied to a nuclear power plant reactor core. The nuclear power plant reactor core includes a plurality of control rods, each control rod corresponds to an independent driving mechanism, and the driving mechanism The control rod is driven to lift, and the driving mechanism can refer to the prior art. The multiple drive mechanisms are controlled by the control terminal, which can independently control the work of each drive mechanism. Alternatively, the nuclear power reactor core of this embodiment does not contain soluble boron. Specifically, the nuclear power reactor core control rod adjustment method includes the following steps:

S221. The lifting adjustment instruction includes the lifting order and lifting distance of each control rod, and the control rods are lifted one by one according to the lifting order and lifting distance. Specifically, the lifting sequence is set according to the control requirements of the nuclear power reactor core, and can also be flexibly set according to the needs; the lifting distance is set according to the control requirements of the nuclear power reactor core, and can also be set flexibly according to the needs. After the control rods ranked first complete the lifting according to the corresponding lifting distance, the control rods ranked last start the lifting and complete the lifting according to the corresponding lifting distance until all the control rods are lifted.

Referring to Figure 7, the lifting process diagram of the 3 control rods in the R rod group is given. The initial rods of the 3 control rods are R1, R2, and R3 are 140, 145, and 200. Among them, R3 is first lifted by 1 unit, and the position is updated. It is 201; R2 is upgraded by 1 unit, and the position is updated to 146; after completion, R1 is upgraded by one unit, and the position is updated to 141.

Example 6

A method for adjusting control rods in a nuclear power reactor core of this embodiment is applied to a nuclear power plant reactor core. The nuclear power plant reactor core includes a plurality of control rod groups, each control rod group corresponds to an independent driving mechanism, and the driving mechanism drives The control rod is inserted or lifted up, and the drive mechanism can refer to the prior art. Wherein, each control rod group may include one or more control rods. Multiple drive mechanisms are controlled by the control terminal, and the control terminal can independently control the work of each drive mechanism, that is, each drive mechanism can control the synchronous action of all control rods in the same control rod group; Linked action. Alternatively, the nuclear power reactor core of this embodiment does not contain soluble boron. Specifically, the nuclear power reactor core control rod adjustment method includes the following steps:

A pre-set rod position table is provided, and the rod position table is provided with a stacking step area, and there is a stacking step relationship among a plurality of control rod groups in the stacking step area. The stacking relationship of each control rod group in the preset rod position table can be set according to parameters such as core power and temperature, while introducing reactivity and reducing the influence on the shape of the axial power distribution.

Receive adjustment instructions. The control terminal receives adjustment instructions for adjusting one or more control rods. The adjustment instructions can be directly input by the nuclear power plant staff to the control terminal, that is, the control terminal receives the adjustment instructions input by the nuclear power plant staff. Alternatively, in some embodiments, the adjustment instruction can also be generated from the acquired nuclear power reactor core parameters before receiving the adjustment instruction, for example, the adjustment instruction is generated according to the power to be adjusted of the nuclear power reactor core, or the temperature of the nuclear power reactor core is generated. The amount to be adjusted generates an adjustment command, or an adjustment command is generated according to the amount to be adjusted of power and the amount to be adjusted of temperature of the core of the nuclear power reactor.

Adjust the position of each control rod group in the corresponding overlapping step area one by one according to the adjustment instruction. The control terminal controls the movement of each drive mechanism one by one according to the adjustment instructions, that is, only one drive mechanism can work at the same time, and after one drive mechanism completes the movement, the other drive mechanisms start to move.

It can be understood that, in some other embodiments, the adjustment instruction includes a downward interpolation adjustment instruction. The control terminal receives a drop-in adjustment instruction, and the drop-in adjustment instruction is used to adjust one or more control rod groups; during adjustment, each control rod group is adjusted one by one according to the drop-in adjustment instruction. The down-plug adjustment instruction can be directly input by the nuclear power plant staff to the control terminal, that is, the control terminal receives the down-plug adjustment instruction input by the nuclear power plant staff. Alternatively, the downward interpolation adjustment command can also be generated from the acquired nuclear power reactor core parameters, for example, the downward interpolation adjustment command is generated according to the power to be adjusted of the nuclear power reactor core, or the downward interpolation adjustment is generated according to the nuclear power reactor core temperature to be adjusted. instruction, or generate down-insertion adjustment instructions according to the power to be adjusted amount and the temperature to be adjusted amount of the nuclear power reactor core.

Adjust the lower insertion control rod groups one by one according to the lower insertion adjustment instruction. The control terminal controls the movement of each drive mechanism one by one according to the insert adjustment instruction, that is, only one drive mechanism can work at the same time, and after one drive mechanism completes the movement, the other drive mechanisms start to move.

Further, the downward insertion adjustment instruction includes the insertion sequence and insertion distance of each control rod group, and the control rod groups are inserted one by one according to the insertion order and insertion distance, and the control rod groups that are not in the same insertion order do not produce linkage action. . Specifically, the insertion sequence is set according to the control requirements of the nuclear power reactor core, and can also be flexibly set as required; the insertion distance is set according to the control requirements of the nuclear power reactor core, and can also be flexibly set according to needs. After the first control rod group is inserted according to the corresponding insertion distance, the next control rod group starts the insertion, and completes the insertion according to the corresponding insertion distance, until all control rod groups complete the insertion.

Referring to Figure 4, a diagram of the inserting process of the three control rods in the R rod group is given. The three control rods are R1, R2, and R3. The initial rods are 140, 145, and 200, and R1 is first inserted by 1 unit. , the position is updated to 139; after R2 is inserted 1 unit, the position is updated to 144; after completion, a unit is inserted under R3, and the position is updated to 199.

Further, in some other embodiments, receiving the adjustment instruction includes receiving an upward adjustment instruction. The control terminal receives an upward adjustment instruction, and the upward adjustment instruction is used to adjust one or more control rod groups; during adjustment, each control rod group is adjusted one by one according to the upward adjustment instruction. The upward adjustment instruction can be directly input by the nuclear power plant staff to the control terminal, that is, the control terminal receives the upward adjustment instruction input by the nuclear power plant staff. Alternatively, the upward adjustment command can also be generated from the acquired core parameters of the nuclear power reactor, for example, the upward adjustment command is generated according to the amount to be adjusted of the power of the nuclear power reactor core, or the upward adjustment command is generated according to the amount to be adjusted of the temperature of the nuclear power reactor core. command, or an upward adjustment command is generated according to the power to be adjusted amount and the temperature to be adjusted amount of the nuclear power reactor core.

Lift up the control rod groups one by one according to the lifting adjustment instructions. The control terminal controls the movement of each driving mechanism one by one according to the lifting adjustment instruction, that is, only one driving mechanism can work at the same time, and after one driving mechanism completes the movement, the other driving mechanisms start to move.

Further, the lifting adjustment instruction includes the lifting order and lifting distance of each control rod group, and the control rod groups are lifted one by one according to the lifting order and lifting distance, and the control rod groups that are not in the same lifting order do not produce linkage action. . Specifically, the lifting order is set according to the control requirements of the nuclear power reactor core, and can also be flexibly set according to the needs; the lifting distance is set according to the control requirements of the nuclear power reactor core, and can also be flexibly set according to the needs. After the first control rod group is lifted up according to the corresponding lifting distance, the latter control rod group starts to lift up, and completes the lifting according to the corresponding lifting distance, until all control rod groups are lifted up.

Referring to Figure 7, a diagram of the lifting process of the 3 control rods in the R rod group is given. The initial rods of the 3 control rods are R1, R2, and R3, which are 140, 145, and 200, and R3 is first lifted by 1 unit. , the position is updated to 201; after the completion of R2, one unit is raised, and the position is updated to 146; after the completion, R1 is raised one unit, and the position is updated to 141.

In this embodiment, the overall movement of all existing control rods is optimized to the movement of a single control rod, so that the movement amount of each lifting is smaller and more accurate, the disturbance to the core of the nuclear power reactor is reduced, and the fineness of the core of the nuclear power reactor is realized. control.

Example 7

The nuclear power reactor core of this embodiment includes a plurality of control rods, and the control rods are adjusted using the control rod adjustment method of the nuclear power reactor core of the above-mentioned embodiment.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

Professionals may further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the possibilities of hardware and software. Interchangeability, the above description has generally described the components and steps of each example in terms of functionality. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

The steps of a method or algorithm described in conjunction with the embodiments disclosed herein may be directly implemented in hardware, a software module executed by a processor, or a combination of the two. Software modules can be placed in random access memory (RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other in the technical field. in any other known form of storage medium.

The above embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention. All equivalent changes and modifications made with the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

A method for adjusting control rods in a core of a nuclear power reactor, comprising:

receive adjustment instructions;

The positions of the control rods are adjusted one by one according to the adjustment instructions.
The method for adjusting a core control rod of a nuclear power reactor according to claim 1, wherein the receiving an adjustment instruction comprises: receiving a drop-in adjustment instruction;

The adjusting the positions of the control rods one by one according to the adjustment instruction includes: inserting the control rods one by one according to the lowering adjustment instruction.
The method for adjusting control rods in a nuclear power reactor core according to claim 2, wherein the inserting the control rods one by one according to the inserting adjustment instruction comprises:

The insertion adjustment instruction includes insertion order and insertion distance of each control rod, and the control rods are inserted one by one according to the insertion order and the insertion distance;

After the control rod in the first order completes the down insertion according to the corresponding down insertion distance, the control rod in the latter order starts down insertion, and completes down insertion according to the corresponding down insertion distance, until all the described down insertion distances are completed. The control rod is fully inserted.
The method for adjusting a core control rod of a nuclear power reactor according to claim 1, wherein the receiving an adjustment instruction comprises: receiving a lifting adjustment instruction;

The adjusting the positions of the control rods one by one according to the adjustment instruction includes: lifting the control rods one by one according to the lifting adjustment instruction.
The method for adjusting control rods in a nuclear power reactor core according to claim 4, wherein the step of lifting the control rods one by one according to the lifting adjustment instruction comprises:

The lifting adjustment instruction includes a lifting order and a lifting distance of each of the control rods, and the control rods are lifted one by one according to the lifting order and the lifting distance;

After the control rods ranked first are lifted according to the corresponding lifting distances, the control rods ranked last start lifting and complete lifting according to the corresponding lifting distances until all the control rods are lifted.
The method for adjusting control rods in a nuclear power reactor core according to claim 1, wherein the nuclear power reactor core does not contain soluble boron;

Before the receiving the adjustment instruction, the method further includes:

The adjustment instruction is generated according to the power to be adjusted amount and/or the temperature to be adjusted amount of the nuclear power reactor core.
A method for adjusting control rods in a core of a nuclear power reactor, comprising:

Provide a preset rod position table, the rod position table is provided with a stacking step area, and there is a stacking step relationship among the plurality of control rod groups in the stacking step area;

receive adjustment instructions;

Adjust the position of each of the control rod groups corresponding to the stacked step area one by one according to the adjustment instruction;

Wherein, each of the control rod groups includes one or more control rods.
The method for adjusting control rods of a nuclear power reactor core according to claim 7, wherein the adjustment instruction comprises a downwardly inserted adjustment instruction, and during adjustment, each control rod group is adjusted one by one according to the downwardly inserted adjustment instruction .
The method for adjusting control rods in a nuclear power reactor core according to claim 8, wherein the inserting adjustment instruction includes the inserting sequence and the inserting distance of each control rod group, and the inserting sequence and the inserting distance are as follows: The control rod groups are inserted into the control rod groups one by one according to the insertion distance; the control rod groups that are not in the same insertion sequence do not produce a linkage action.
The method for adjusting control rods in a nuclear power reactor core according to claim 9, wherein when the control rod groups are inserted one by one according to the insertion sequence and the insertion distance,

After the control rod group in the first order completes the down insertion according to the corresponding down insertion distance, the control rod group in the latter order starts down insertion, and completes down insertion according to the corresponding down insertion distance, until all the down insertion distances are completed. The control rod group is inserted downward.
The method for adjusting control rods of a nuclear power reactor core according to claim 7, wherein the adjustment instruction comprises an upward adjustment instruction; during adjustment, each control rod group is adjusted one by one according to the upward adjustment instruction .
The method for adjusting control rods in a nuclear power reactor core according to claim 11, wherein the lifting adjustment instruction includes a lifting order and a lifting distance of each control rod group, and the lifting order and the lifting distance are as follows: The lifting distance lifts the control rod groups one by one, and the control rod groups that are not in the same lifting sequence do not produce a linkage action.
The method for adjusting control rods of a nuclear power reactor core according to claim 12, wherein when the control rod groups are lifted one by one according to the lifting order and the lifting distance,

After the control rod group in the first order is lifted up according to the corresponding lifting distance, the control rod group in the latter order starts to lift up, and completes the lifting according to the corresponding lifting distance, until all the control rod groups are lifted up. The control rod group is lifted up.
The method for adjusting a control rod of a nuclear power reactor core according to claim 7, further comprising: before receiving the adjustment instruction:

The adjustment instruction is generated according to the power to be adjusted amount and/or the temperature to be adjusted amount of the nuclear power reactor core.
A nuclear power reactor core, comprising a plurality of control rod groups, characterized in that the control rod groups are adjusted by using the control rod adjustment method for a nuclear power reactor core according to any one of claims 1 to 14.