Device for controlling refueling equipment of reactor and reactor

Abstract

The embodiment of the invention relates to the technical field of nuclear energy, in particular to a device for controlling refueling equipment of a reactor and the reactor, and the device comprises a sensor which is used for obtaining an operation signal of the refueling equipment and sending the operation signal to a signal converter; the signal converter is used for sending the operation signals to the driver and the controller so that the driver can drive the refueling equipment to stop operating. The controller is used for generating a control instruction according to the operation signal and sending the control instruction to the driver so that the driver can drive the refueling equipment to stop operating, and the purpose of sending the operation signal of the refueling equipment to the driver and the controller can be achieved through the signal converter. The signal converter is arranged to directly drive the refueling equipment to stop running when the driver receives the running signal, the response time is short, the controller is arranged to control the driver to drive the refueling equipment to stop running when the driver does not receive the running signal directly sent by the signal converter, and safety and reliability of running of the refueling equipment are guaranteed.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of nuclear energy technology, and specifically to a device for controlling a refueling device of a reactor and a reactor. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] A fast breeder reactor (hereinafter referred to as fast reactor) is a reactor that can utilize nuclear fission chain reactions rich in fissionable nuclides to release huge amounts of heat energy, and then transfer the heat energy to high-temperature and high-pressure steam through the circulation of coolant, thereby driving a steam turbine generator to generate electricity.

[0004] Fast reactors can convert the difficult-to-use U-238 in thermal neutron reactors into easily usable Pu-239, thereby greatly improving the utilization rate of nuclear fuel. The main method is to transfer nuclear fuel assemblies through refueling equipment. Since the refueling process of fast reactors is relatively complicated and the positioning accuracy of refueling equipment is required to be high, it is necessary to ensure relatively accurate control of the operating status of the refueling equipment. However, the current fuel operation control system is not ideal. Summary of the invention

[0005] A brief overview of the present application is provided below in order to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] In the first aspect, an embodiment of the present application provides a device for controlling a fuel changing device of a reactor, which includes a signal converter, a controller, a driver and a sensor; the sensor and the signal converter are communicatively connected to obtain an operating signal of the fuel changing device and send the operating signal to the signal converter; the signal converter and the driver are respectively communicatively connected to send an operating signal to the driver, so that the driver drives the fuel changing device to stop running; and the signal converter is also connected to the controller to send the operating signal to the controller; the controller is used to generate a control instruction according to the received operating signal, and the controller is also communicatively connected to the driver to send the generated control instruction to the driver, so that the driver drives the fuel changing device to stop running, to avoid the driver not receiving the operating signal sent by the signal converter; the driver is used to drive the fuel changing device to operate.

[0007] The embodiments of the present application connect the sensor to the signal converter, and connect the signal converter to the driver and the controller respectively, so that the operation signal of the material changing equipment obtained by the sensor can be sent to the driver and the controller respectively, so that when the driver receives the operation signal directly sent by the signal converter, the material changing equipment can be directly driven to stop running, and the response time is relatively short. At the same time, by connecting the controller to the driver, when the driver does not receive the operation signal directly sent by the signal converter, the controller can be used to control the driver so that the driver drives the material changing equipment to stop running, thereby ensuring the safety and reliability of the operation of the material changing equipment.

[0008] In a second aspect, an embodiment of the present application further provides a reactor, which includes: a fuel assembly, a fuel replacement device, and a device of an embodiment of the present application, wherein the fuel replacement device is used to transport the fuel assembly; and the device is used to control the operation of the fuel replacement equipment.

[0009] These and other advantages of the present application will become more apparent through the following detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to further illustrate the above and other advantages and features of the present application, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. The accompanying drawings together with the following detailed description are included in this specification and form a part of this specification. Elements with the same function and structure are represented by the same reference numerals. It should be understood that these drawings only describe typical examples of the present application and should not be regarded as limiting the scope of the present application.

[0011] Figure 1 is a schematic block diagram of an apparatus for controlling a refueling device of a reactor according to an embodiment of the present application;

[0012] Figure 2 It is a schematic diagram of the control principle of an apparatus for controlling a refueling device of a reactor according to an embodiment of the present application.

[0013] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding.

[0014] Description of reference numerals:

[0015] 10. Sensor; 11. Continuous position sensor; 12. Fixed position sensor; 13. Safety clutch sensor; 14. Position overlimit sensor; 20. Signal converter; 30. Controller; 40. Driver; 50. Motor; 60. Safety clutch; 70. Reducer; 80. Load device. DETAILED DESCRIPTION

[0016] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0017] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0018] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in this application should have the common meanings understood by persons with ordinary skills in the field to which this application belongs.

[0019] In the description of the embodiments of the present application, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0020] Refueling equipment is a series of electromechanical equipment responsible for transporting nuclear fuel assemblies. During the refueling of a fast reactor, since the refueling operation is relatively complicated and the fuel assembly transportation process is carried out in a metal coolant and radioactive gas, the fuel assemblies are invisible. Therefore, the operational safety and control requirements of the refueling equipment are relatively high. For the device for controlling refueling equipment in the related art, it is difficult to control the refueling equipment to stop in a timely and effective manner when the refueling equipment fails, so it is difficult to ensure the safety and reliability of the refueling equipment operation.

[0021] In view of the above technical problems, an embodiment of the present application provides a device for controlling a refueling device of a reactor. Figure 1 is a schematic block diagram of a device for controlling a refueling device of a reactor (hereinafter referred to as a control device) according to an embodiment of the present application, such as Figure 1 As shown, the control device includes a signal converter 20 , a controller 30 , a driver 40 and a sensor 10 .

[0022] The sensor 10 is communicatively connected with the signal converter 20 to obtain the operation signal of the material changing equipment and send the operation signal to the signal converter 20 .

[0023] The signal converter 20 and the driver 40 are communicatively connected to each other for sending an operation signal to the driver 40 so that the driver 40 drives the material changing device to stop operating; and the signal converter 20 is also connected to the controller 30 for sending an operation signal to the controller 30.

[0024] The controller 30 is used to generate control instructions based on the received operating signal, and the controller 30 is also communicatively connected to the driver 40 to send the generated control instructions to the driver 40 so that the driver 40 drives the material changing equipment to stop operating, thereby avoiding the driver 40 not receiving the operating signal sent by the signal converter 20.

[0025] The driver 40 is used to drive the material changing device to operate.

[0026] The embodiment of the present application connects the sensor 10 to the signal converter 20, and connects the signal converter 20 to the driver 40 and the controller 30 respectively, so that the operation signal of the material changing equipment obtained by the sensor 10 can be sent to the driver 40 and the controller 30 respectively, so that when the driver 40 receives the operation signal directly sent by the signal converter 20, the material changing equipment can be directly driven to stop running, and the response time is relatively short. At the same time, by connecting the controller 30 to the driver 40, when the driver 40 does not receive the operation signal directly sent by the signal converter 20, the controller 30 can be used to control the driver 40, so that the driver 40 drives the material changing equipment to stop running, thereby ensuring the safety and reliability of the operation of the material changing equipment.

[0027] In some embodiments, the signal converter 20 is a relay.

[0028] In some embodiments, the control device also includes: a communication component; the signal converter 20 and the driver 40 are connected via a communication component to send the operating signal directly to the driver 40, thereby further reducing the response time of the driver 40, which helps to achieve rapid parking when a failure occurs in the material replacement equipment, and at the same time, avoid protection refusal caused by factors such as signal network communication failure or software logic operation failure of the controller 30.

[0029] In such an embodiment, the time for the driver 40 to respond is less than 10 ms.

[0030] In some embodiments, the operation signal detected by the sensor 10 is isolated and converted into two operation signals for output by the signal converter 20 .

[0031] In such an embodiment, one of the two operating signals is sent to the driver 40 to directly control the driver 40 to drive the material changing equipment to stop operating; the other of the two operating signals is sent to the controller 30, so that the controller 30 generates a control instruction based on the operating signal, and then uses the control instruction to control the driver 40, so that the driver 40 drives the material changing equipment to stop operating.

[0032] In some embodiments, the controller 30 is configured to: receive an operation signal; compare the operation signal with a predetermined operation requirement of the material changing device; and generate a control instruction when the operation signal indicates that the current operation state of the material changing device does not meet the predetermined operation requirement.

[0033] The embodiments of the present application can control the operation of the material changing equipment relatively quickly and accurately by comparing the received operation signal with the predetermined operation requirement and generating a control instruction according to the comparison result.

[0034] In some embodiments, the predetermined operating requirement is an operating parameter threshold of the material changing equipment, wherein the controller 30 is further configured to: compare the operating parameter corresponding to the operating signal with the operating parameter threshold to determine the operating parameter difference; when the operating parameter difference is greater than the predetermined difference threshold, determine that the current operating state of the material changing equipment does not meet the predetermined operating requirement, and generate a control instruction to control the material changing equipment to stop operating.

[0035] The embodiments of the present application determine the operating parameter difference by comparing the operating parameter corresponding to the fault signal with the operating parameter threshold, so as to determine whether the current operating parameters of the material changing equipment meet the predetermined operating requirements based on the relationship between the operating parameter difference and the predetermined difference threshold, thereby generating corresponding control instructions and improving the reliability of the material changing equipment.

[0036] In some embodiments, the predetermined operating requirement is the operating parameter range of the material changing equipment, wherein the controller 30 is further configured to: determine whether the operating parameter corresponding to the operating signal is within the operating parameter range; when the operating parameter corresponding to the operating signal is not within the operating parameter range, determine that the current operating state of the material changing equipment does not meet the predetermined operating requirement, and generate a control instruction to control the material changing equipment to stop operating.

[0037] The embodiments of the present application compare the operating parameters corresponding to the fault signal with the operating parameter range to determine whether the operating parameters are within the operating parameter range, so as to determine whether the operating parameters of the material changing equipment meet the predetermined operating requirements based on the relationship between the operating parameters and the operating parameter range, thereby generating corresponding control instructions and improving the reliability of the material changing equipment.

[0038] In some embodiments, Figure 2is a schematic diagram of the control principle of the device for controlling the refueling equipment of the reactor according to an embodiment of the present application, such as Figure 2 As shown, the sensor 10 includes a fixed position sensor 12, which is used to detect the arrival signal of the material changing device, so as to timely control the material changing device to stop running when the travel of the material changing device ends.

[0039] In some embodiments, the fixed position sensor 12 is disposed at the terminal position of the working stroke of the material changing device to detect the position of the material changing device.

[0040] In some embodiments, the controller 30 is configured to: compare the position information corresponding to the in-place signal with the predetermined stop position to determine the position difference; when the position difference is greater than the predetermined difference threshold, generate a control instruction to control the material exchange equipment to stop running.

[0041] The embodiment of the present application determines the position difference by comparing the position information corresponding to the arrival signal with the predetermined stop position, so as to determine whether the current stop position of the material changing equipment meets the predetermined operation requirements.

[0042] In some embodiments, the sensor 10 may also be a continuous position sensor 11 for detecting a continuous position signal of the material changing device to monitor the travel of the material changing device in real time and ensure that the material changing device can smoothly perform the material changing operation.

[0043] In some embodiments, the controller 30 is configured to: determine whether the position information corresponding to the continuous position signal is within a predetermined continuous position range; when the continuous position is not within the predetermined continuous position range, generate a control instruction to control the material exchange equipment to stop operating.

[0044] The embodiments of the present application compare the position information corresponding to the continuous position signal with the predetermined continuous position range to determine whether the position information of the current material changing equipment is within the predetermined continuous position range, so as to facilitate real-time monitoring of whether the operating status of the material changing equipment meets the predetermined operating requirements and ensure the reliability of the material changing equipment.

[0045] In some embodiments, Figure 2As shown, the material changing device includes a load device 80, a motor 50, a safety clutch 60 and a reduction box 70. The driver 40 can be used to drive the motor 50 of the material changing device to move, so that the motor 50 finally drives the load device 80 to run through the safety clutch 60 and the reduction box 70. The safety clutch 60 is used to disconnect the mechanical transmission chain when the load device 80 has a mechanical motion interference torque. The safety clutch sensor 13 is used to detect the action of the safety clutch 60 and generate an alarm signal to control the motor 50 to stop running. The reduction box 70 is used to decelerate the motor 50. The position over-limit sensor 14 located on the reduction box 70 is used to detect that the mechanical position exceeds the limit value and generates an over-limit alarm signal. The over-limit alarm signal directly enters the driver 40 to stop the motor operation. At the same time, the over-limit alarm signal enters the controller 30 to control the driver 40 to stop the motor operation.

[0046] In some embodiments, the control device may include a plurality of continuous position sensors 11, for example, two, which are respectively connected to the motor 50 and the reduction box 70 of the material changing device to detect whether the motor 50 and the reduction box 70 are faulty.

[0047] In such an embodiment, by comparing the continuous position signals detected by the two continuous position sensors 11, if the difference between the two continuous position signals is greater than the predetermined difference threshold, it can be determined that the continuous position sensor 11 or the material changing device has a fault. At this time, the controller 30 can generate a control instruction to control the motor 50 of the material changing device to stop running.

[0048] In some embodiments, the sensor 10 includes a safety clutch 60 sensor 10 and a position over-limit sensor 14. The safety clutch 60 sensor 10 is disposed on the safety clutch 60 to detect whether the safety clutch 60 is overloaded. The position over-limit sensor 14 is disposed on the reduction box 70 to detect the operating position of the load device 80.

[0049] In such an embodiment, when mechanical motion interference occurs in the material changing equipment and excessive torque is generated on the transmission chain, the mechanical safety clutch 60 will be triggered to overload, thereby triggering the safety clutch sensor 13 installed on the safety clutch 60 to generate a corresponding operating signal to control the motor 50 of the material changing equipment to stop running.

[0050] In such an embodiment, when the current position of the load device 80 exceeds the stroke terminal limit, the position over-limit sensor 14 is triggered to generate a corresponding operation signal to control the motor 50 of the material changing device to stop running.

[0051] An embodiment of the present application further provides a reactor, which includes: a fuel assembly, a fuel replacement device, and a control device of an embodiment of the present application, wherein the fuel replacement device is used to transport the fuel assembly; and the control device is used to control the operation of the fuel replacement device.

[0052] The embodiments of the present application control the operation of the fuel changing equipment through a control device, so that in the event of a failure in the fuel changing equipment, it is helpful to promptly discover the failure and control the fuel changing equipment to stop working, so as to ensure the safety and reliability of the operation of the fuel changing equipment, thereby ensuring the safety of the reactor.

[0053] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0054] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A device for controlling a refueling device of a reactor, characterized in that: It includes a signal converter, a controller, a driver and a sensor; The sensor is communicatively connected with the signal converter, and is used to obtain the operation signal of the material changing equipment, and send the operation signal to the signal converter; The signal converter is communicatively connected to the driver, and is used to send the operation signal to the driver, so that the driver drives the material changing device to stop operating; Furthermore, the signal converter is also connected to the controller and is used to send the operation signal to the controller; The controller is used to generate a control instruction according to the received operation signal, and the controller is also communicatively connected with the driver, and is used to send the generated control instruction to the driver, so that the driver drives the material changing device to stop running, so as to avoid the driver not receiving the operation signal sent by the signal converter; The driver is used to drive the material changing equipment to operate.

2. The device according to claim 1, characterized in that Also includes: correspondence, The signal converter is connected to the driver via the communication element so as to directly send the operation signal to the driver.

3. The device according to claim 1, characterized in that The controller is configured to: receiving the operation signal; comparing the operating signal with predetermined operating requirements of the refueling device; When the operation signal indicates that the current operation state of the material changing equipment does not meet the predetermined operation requirement, the control instruction is generated.

4. The device according to claim 3, characterized in that The predetermined operation requirement is an operation parameter threshold of the material changing device, wherein the controller is further configured to: Comparing the operating parameter corresponding to the operating signal with the operating parameter threshold to determine an operating parameter difference; When the operating parameter difference is greater than a predetermined difference threshold, it is determined that the current operating state of the material changing device does not meet the predetermined operating requirement, and the control instruction is generated to control the material changing device to stop operating.

5. The device according to claim 3, characterized in that The predetermined operation requirement is an operation parameter range of the material changing equipment, wherein the controller is further configured to: Determining whether the operating parameter corresponding to the operating signal is within the operating parameter range; When the operating parameter corresponding to the operating signal is not within the operating parameter range, it is determined that the current operating state of the material changing device does not meet the predetermined operating requirement, and the control instruction is generated to control the material changing device to stop operating.

6. The device according to any one of claims 1 to 5, characterized in that: The sensor is a fixed position sensor, which is used to detect the arrival signal of the material changing equipment.

7. The device according to claim 6, characterized in that The controller is configured to: Comparing the position information corresponding to the in-position signal with the predetermined stop position to determine the position difference; When the position difference is greater than a predetermined difference threshold, the control instruction is generated to control the material changing equipment to stop running.

8. The device according to any one of claims 1 to 5, characterized in that: The sensor is a continuous position sensor, which is used to detect the continuous position signal of the material changing equipment.

9. The device according to claim 8, characterized in that The controller is configured to: Determining whether the position information corresponding to the continuous position signal is within a predetermined continuous position range; When the continuous position is not within the predetermined continuous position range, the control instruction is generated to control the material changing equipment to stop operating.

10. A reactor, characterized in that include: A fuel assembly, a refueling device, and a device according to any one of claims 1 to 9, wherein: The refueling equipment is used to transport the fuel assembly; The device is used to control the operation of the material changing equipment.

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