Uranium plating device for fission ionization chamber detector electrode
By designing a fission ionization chamber detector electrode uranium plating device including a closed, rotary plating structure, program-controlled power supply, and temperature controller, the problems of inconvenient control, poor coating uniformity and radioactive solution leakage in traditional devices are solved, and the high quality and consistency of the uranium plating layer are achieved.
Patent Information
- Application Number
- CN202411722526.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-02-28
AI Technical Summary
The traditional fission ionization chamber detector electrode uranium plating device has problems such as inconvenient control, poor coating uniformity, radioactive solution leakage and low material utilization.
A fission ionization chamber detector electrode uranium plating device including a base, mounting bracket, motor, rotary connection mechanism, electrode fixing base, electrode chamber, sealing fixing mechanism, sampling and discharging device, transmission rod and control box is designed. It adopts a closed and rotary plating structure, combined with a program-controlled power supply, a temperature controller and a speed controller to ensure the uniformity and quality of the uranium plating layer.
The uniformity and quality of the uranium plating layer are improved, the leakage of radioactive substances is prevented, and the consistency of products and material utilization are improved.
Smart Images
Figure CN119530932A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of out-of-core nuclear measurement, and in particular to a uranium plating device for a fission ionization chamber detector electrode. Background Art
[0002] The ex-core nuclear measurement system is one of the important systems directly related to reactor safety. It continuously monitors the reactor power, power change rate and axial distribution of power by setting up a series of neutron detectors outside the reactor pressure vessel and measuring the neutron flux rate around the reactor. The intermediate range measurement channel of the ex-core nuclear measurement system of the third-generation nuclear power plant uses a fission ionization chamber detector as a neutron detection element. The fission ionization chamber uses the nuclear fission method to detect neutrons, which has the advantages of a wide range and strong γ discrimination capability.
[0003] The uranium electrode is the core component of the fission ionization chamber. A layer of highly enriched uranium material is evenly electroplated on the inner or outer wall of the cylindrical electrode. Neutrons undergo fission reactions with the uranium material on the electrode to produce charged particles, which are collected to generate pulse signals.
[0004] Electrode uranium plating is a technical difficulty in making uranium electrodes for fission ionization chambers. Uranium materials are not only expensive, but also subject to control in terms of usage. Traditional electroplating devices have the following disadvantages: first, it is not easy to control the area where the electrode is plated with uranium, and the radioactive solution will contaminate other areas; second, the circumferential axial uniformity of the coating is uneven, resulting in poor consistency and low sensitivity of the detector; third, the electroplating device is not closed, which can easily cause leakage and contamination of the radioactive solution; fourth, the utilization rate of the material is low, and a large amount of electroplating solution is required, which not only causes material waste, but is also not conducive to radioactive post-processing. Summary of the invention
[0005] The present application provides a uranium plating device for a fission ionization chamber detector electrode, which can freely and accurately control the uranium plating thickness, has good consistency and high plating quality.
[0006] In order to achieve the above-mentioned purpose, the present application provides a uranium plating device for a fission ionization chamber detector electrode, comprising a base, a mounting bracket, a motor, a rotating connection mechanism, an electrode fixing seat, an electrode chamber, a sealing and fixing mechanism, a sampling and liquid discharge device, a transmission rod and a control box, wherein: the mounting bracket comprises a first mounting bracket, a second mounting bracket and a third mounting bracket; the motor is fixed to the front end of the base through the first mounting bracket, the electrode fixing seat is mounted in the middle position of the base through the second mounting bracket, and the transmission rod is fixed to the rear end of the base through the third mounting bracket; the motor is connected to one end of the electrode fixing seat through the rotating connection mechanism, and the other end of the electrode fixing seat is connected to the transmission rod; the electrode chamber is arranged on the electrode fixing seat through the sealing and fixing mechanism, and the electrode chamber rotates with the electrode fixing seat under the drive of the motor; the sampling and liquid discharge device is fixed to the electrode fixing seat and connected to the electrode chamber; the control box is respectively connected to the motor and the electrode chamber.
[0007] Furthermore, the rotating connection mechanism includes a limit bearing seat, a limit pin, a coupling, a spherical roller bearing and a slip ring rotating brush, wherein: the limit bearing seat is arranged on the first mounting bracket through the limit pin; the spherical roller bearing is arranged inside the limit bearing seat; the transmission shaft of the motor passes through the spherical roller bearing and is connected to the electrode fixing seat through the coupling; the slip ring rotating brush is arranged on the outside of the coupling.
[0008] Furthermore, the electrode chamber is a cylindrical structure, including a shell, an end cover, an electrode to be plated and a center electrode, wherein: the end cover is made of plexiglass and is arranged at the front and rear ends of the shell to form a sealed chamber with the shell as a whole; a positioning groove is provided on the outside of the shell; the electrode to be plated and the center electrode are both arranged inside the shell; the electrode to be plated is led out through an electrode conductor and connected to a control box, and serves as a negative electrode during electroplating; the center electrode is a platinum electrode, and is led out through a retaining spring and connected to a control box, and serves as a positive electrode during electroplating.
[0009] Furthermore, the sealing and fixing mechanism comprises a sealing clamp ring and a conical sealing ring. The sealing clamp ring is arranged on the positioning groove, and the conical sealing ring is arranged between the sealing clamp ring and the electrode fixing seat.
[0010] Furthermore, it also includes a deflation mechanism, which includes a sensor guide rod, a laser sensor and a solenoid valve, wherein: the sensor guide rod is arranged on the outside of the coupling; the laser sensor is fixedly connected to the sensor guide rod; the solenoid valve is arranged on the electrode fixing seat and connected to the electrode chamber; during electroplating, the switch of the solenoid valve is controlled by sensing the laser emitted by the laser sensor.
[0011] Furthermore, an electric heater is sleeved on the outer side of the electrode chamber shell. The electric heater is a tubular programmable constant temperature electric heater, which is fixed on the second mounting bracket and electrically connected to the control box.
[0012] Furthermore, a temperature measuring probe is arranged on the shell of the electrode chamber, and the temperature measuring probe is a platinum resistance temperature measuring probe, which is electrically connected to the control box.
[0013] Furthermore, the sampling and liquid discharging device is connected to the electrode chamber via a liquid discharging rotary valve.
[0014] Furthermore, the control box is provided with terminals, switches, control buttons and display screens, wherein: the terminals are power terminals; the switch is the main power switch; the control buttons include a motor knob, a power setting button, a temperature adjustment knob, a temperature setting button and a speed adjustment button; the display screen includes a power display screen and a temperature display screen.
[0015] The fission ionization chamber detector electrode uranium plating device provided in the present application has the following beneficial effects:
[0016] The present application adopts a combination of electric brushes, transmission rods and bearings to form a closed and rotary electroplating structure. The uranium plating layer has high film uniformity and can prevent pollution caused by leakage of radioactive substances. A programmable power supply, a programmable temperature controller and a speed controller are used to control the electroplating elements such as power supply, temperature and speed of the uranium plating device. The degree of standardization is high and the consistency of the product is effectively improved. A programmable tubular electric heating device is used to replace the traditional water bath heating form, thereby improving the temperature control performance. A laser sensor is used to control the opening and closing of the solenoid valve, which can discharge the gas generated in the electroplating process and prevent leakage due to gas expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:
[0018] Figure 1 It is a schematic diagram of a uranium plating device for a fission ionization chamber detector electrode provided according to an embodiment of the present application;
[0019] Figure 2 is a schematic diagram of a sealing and fixing mechanism provided according to an embodiment of the present application;
[0020] Figure 3 is a schematic diagram of a control box panel provided according to an embodiment of the present application;
[0021] In the figure: 1-base, 2-first mounting bracket, 3-second mounting bracket, 4-third mounting bracket, 5-motor, 6-limit bearing seat, 7-limit pin, 8-coupling, 9-spherical roller bearing, 10-slip ring rotating brush, 11-electrode fixing seat, 12-electrode chamber, 13-electrode to be plated, 14-center electrode, 15-electrode conductor, 16-sealing clamp ring, 17-conical sealing ring, 18-sampling and liquid discharge device, 19-transmission rod, 20-control box, 21-sensor guide rod, 22-laser sensor, 23-solenoid valve, 24-electric heater, 25-temperature measuring probe, 26-power terminal, 27-main power switch, 28-motor knob, 29-power setting button, 30-temperature adjustment knob, 31-temperature setting button, 32-speed adjustment button, 33-power display screen, 34-temperature display screen. DETAILED DESCRIPTION
[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.
[0026] In addition, the term "plurality" shall mean two or more.
[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0028] like Figure 1 As shown, the present application provides a fission ionization chamber detector electrode uranium plating device, including a base 1, a mounting bracket, a motor 5, a rotating connection mechanism, an electrode fixing seat 11, an electrode chamber 12, a sealing and fixing mechanism, a sampling and liquid discharging device 18, a transmission rod 19 and a control box 20, wherein: the mounting bracket includes a first mounting bracket 2, a second mounting bracket 3 and a third mounting bracket 4; the motor 5 is fixed to the front end of the base 1 through the first mounting bracket 2, the electrode fixing seat 11 is mounted at the middle position of the base 1 through the second mounting bracket 3, and the transmission rod 19 is fixed to the rear end of the base 1 through the third mounting bracket 4; the motor 5 is connected to one end of the electrode fixing seat 11 through the rotating connection mechanism, and the other end of the electrode fixing seat 11 is connected to the transmission rod 19; the electrode chamber 12 is arranged on the electrode fixing seat 11 through the sealing and fixing mechanism, and the electrode chamber 12 rotates with the electrode fixing seat 11 under the drive of the motor 5; the sampling and liquid discharging device 18 is fixed to the electrode fixing seat 11 and connected to the electrode chamber 12; the control box 20 is connected to the motor 5 and the electrode chamber 12 respectively.
[0029] Specifically, the uranium plating device for the fission ionization chamber detector electrode provided in the embodiment of the present application is a rapid uranium plating device based on the logic control formula of the fission ionization chamber neutron detector, which organically combines mechatronics and automatic programmed control to improve the production efficiency of the uranium plating device and avoid radioactive leakage. The uranium plating device can freely and accurately control the thickness of the uranium plating, with good consistency and high coating quality. Among them, the base 1 is used for the fixed installation of the overall structure, preferably made of aluminum alloy material, which is easy to process and form; the mounting bracket is used for the fixed support of the overall device, and the overall device is divided into three parts, including a driving motor 5 fixed at the front end by a first mounting bracket 2, an electrode fixing seat 11 and a rotating electrode chamber 12 fixed at the middle position by a second mounting bracket 3, and a transmission rod 19 fixed at the rear end by a third mounting bracket 4; the motor 5 is connected to the electrode fixing seat 11 through a rotating connection mechanism, and the electrode fixing seat 11 is connected to the transmission rod 19, and the electrode chamber 12 is arranged on the electrode fixing seat 11 through a sealing fixing mechanism. Under the drive of the motor 5, the electrode chamber 12 can rotate. During the rotation process, the electroplating solution is injected into the electrode chamber 12 through the sampling and discharging device 18, so that as the electrode chamber 12 rotates, the electroplating solution will be evenly plated on the electrode to be plated 13 inside the electrode chamber 12, so that the electroplating solution is uniformly distributed in the axial direction and the forming thickness is uniform. The control box 20 is arranged outside the device and is electrically connected to the device for power supply of the device and control of various mechanisms.
[0030] Furthermore, the rotary connection mechanism includes a limit bearing seat 6, a limit pin 7, a coupling 8, a spherical roller bearing 9 and a slip ring rotating brush 10, wherein: the limit bearing seat 6 is arranged on the first mounting bracket 2 through the limit pin 7; the spherical roller bearing 9 is arranged inside the limit bearing seat 6; the transmission shaft of the motor 5 passes through the spherical roller bearing 9 and is connected to the electrode fixing seat 11 through the coupling 8; the slip ring rotating brush 10 is arranged on the outside of the coupling 8. The limit bearing seat 6 and the limit pin 7 are used to fix the motor 5 according to the actual installation environment, so that the motor 5 can be stably fixed on the first mounting bracket 2; the coupling 8 is used for connecting the transmission shaft of the motor 5 with the electrode fixing seat 11; the spherical roller bearing 9 is used to reduce the friction of the transmission shaft; the slip ring rotating brush 10 is fixed on the coupling 8, and the two are coaxially arranged; the motor 5 drives the electrode chamber 12 to rotate through the rotary connection mechanism, so that the electroplating solution inside can move in the circumferential direction and evenly adhere to the electrode to be plated 13.
[0031] Furthermore, the electrode chamber 12 is a cylindrical structure, including a shell, an end cover, an electrode to be plated 13 and a center electrode 14, wherein: the end cover is made of plexiglass and is arranged at the front and rear ends of the shell to form a sealed chamber with the shell as a whole; a positioning groove is provided on the outside of the shell; the electrode to be plated 13 and the center electrode 14 are both arranged inside the shell; the electrode to be plated 13 is led out through the electrode conductor 15 and connected to the control box 20, and serves as the negative electrode during electroplating; the center electrode 14 is a platinum electrode, and the electrode is led out through a retaining spring and connected to the control box 20, and serves as the positive electrode during electroplating. The electrode chamber 12 is a cylindrical sealed chamber structure as a whole, which seals the solution inside the electrode 13 to be plated to prevent leakage of the radioactive plating solution. The front and rear end covers are made of organic glass material, which is convenient for observing the situation inside the chamber; positioning grooves are provided at both ends of the outer side of the shell for fixed connection with the electrode fixing seat 11; the electrode 13 to be plated and the center electrode 14 are sealed inside the electrode chamber 12. The center electrode 14 is a platinum electrode to prevent corrosion by the plating solution during the electroplating process. It is arranged at the center of the electrode chamber 12, and the end face leads out the electrode through a retaining spring, which serves as the positive electrode during electroplating; the electrode 13 to be plated is arranged at the shell of the electrode chamber 12. After sealing is completed, the electrode is led out through the electrode conductor 15 on the end face of the electrode fixing seat 11, which serves as the negative electrode during electroplating.
[0032] Further, such as Figure 2 As shown, the sealing and fixing mechanism includes a sealing clamp ring 16 and a conical sealing ring 17. The sealing clamp ring 16 is arranged on the positioning groove, and the conical sealing ring 17 is arranged between the sealing clamp ring 16 and the electrode fixing seat 11. The sealing clamp ring 16 is used for the matching connection between the housing positioning groove and the electrode fixing seat 11, so that the electrode chamber 12 as a whole can be snap-fastened on the electrode fixing seat 11; the conical sealing ring 17 is arranged between the sealing clamp ring 16 and the electrode fixing seat 11 to ensure the sealing performance.
[0033] Furthermore, it also includes a deflation mechanism, which includes a sensor guide rod 21, a laser sensor 22 and a solenoid valve 23, wherein: the sensor guide rod 21 is arranged on the outside of the coupling 8; the laser sensor 22 is fixedly connected to the sensor guide rod 21; the solenoid valve 23 is arranged on the electrode fixing seat 11 and connected to the electrode chamber 12; during electroplating, the switch of the solenoid valve 23 is controlled by sensing the laser emitted by the laser sensor 22. Gas is generated during the electroplating process, and excessive gas is prone to expansion and leakage. In the embodiment of the present application, a laser sensor 22 is arranged to control the opening and closing of the solenoid valve 23. The laser sensor 22 is fixed on the outside of the coupling 8 through the sensor guide rod 21, and the solenoid valve 23 is arranged on the electrode fixing seat 11 and connected to the gas outlet of the electrode chamber 12; during the electroplating process, when the solenoid valve 23 is turned to the top, the laser sensor 22 is sensed, the solenoid valve 23 is opened, and the gas generated during electroplating is discharged. When it is turned to other angles, the solenoid valve 23 is in a closed state to prevent leakage of radioactive solution.
[0034] Furthermore, an electric heater 24 is provided on the outer side of the shell of the electrode chamber 12. The electric heater 24 is a tubular programmable constant temperature electric heater, fixed on the second mounting bracket 3, and electrically connected to the control box 20. A tubular programmable constant temperature electric heater 24 is provided on the outer side of the shell of the electrode chamber 12. The temperature can be set through the control box 20. During the electroplating process, the entire electrode chamber 12 can be kept in a constant temperature state to promote the formation of the plated film.
[0035] Furthermore, a temperature probe 25 is provided on the shell of the electrode chamber 12, and the temperature probe 25 is a platinum resistance temperature probe, which is electrically connected to the control box 20. The temperature probe 25 is used to measure the real-time temperature inside the electrode chamber 12. According to the measured temperature, the control box 20 can adjust the electric heater 24 at any time.
[0036] Furthermore, the sampling and discharging device 18 is connected to the electrode chamber 12 through the discharging rotary valve. The sampling and discharging device 18 is used to place the electroplating solution, and is connected to the electrode chamber 12 through the discharging rotary valve, and is used to inject the electroplating solution into the electrode chamber 12. When the electrode chamber 12 is sealed and fixed, the discharging rotary valve is rotated to the top, and the valve is closed after the electroplating solution is injected.
[0037] Further, such as Figure 3 As shown, the control box 20 is provided with a terminal, a switch, a control button and a display screen, wherein: the terminal is a power terminal 26; the switch is a main power switch 27; the control button includes a motor knob 28, a power setting button 29, a temperature adjustment knob 30, a temperature setting button 31 and a speed adjustment button 32; the display screen includes a power display screen 33 and a temperature display screen 34. The control box 20 is mainly used for power supply of the entire device, control of each mechanism and display of the electroplating status. In the embodiment of the present application, the power terminal 26 includes a positive and negative terminal and a grounding; the control adjustment includes the adjustment of the forward and reverse rotation of the motor 5 and the adjustment of the speed of the motor 5, as well as the setting and adjustment of the temperature of the electric heater 24; the display screen is used to display the temperature of the electrode chamber 12 and the display of power supply parameters such as voltage and current during the electroplating process.
[0038] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A uranium plating device for a fission ionization chamber detector electrode, characterized in that: It includes a base, a mounting bracket, a motor, a rotating connection mechanism, an electrode fixing seat, an electrode chamber, a sealing fixing mechanism, a sampling and liquid discharge device, a transmission rod and a control box, wherein: The mounting bracket includes a first mounting bracket, a second mounting bracket and a third mounting bracket; The motor is fixed to the front end of the base through the first mounting bracket, the electrode fixing seat is mounted at the middle position of the base through the second mounting bracket, and the transmission rod is fixed to the rear end of the base through the third mounting bracket; The motor is connected to one end of the electrode fixing seat through a rotating connection mechanism, and the other end of the electrode fixing seat is connected to the transmission rod; The electrode chamber is arranged on the electrode fixing seat through a sealing fixing mechanism, and driven by the motor, the electrode chamber rotates together with the electrode fixing seat; The sampling and liquid discharging device is fixed on the electrode fixing seat and connected to the electrode chamber; The control box is connected to the motor and the electrode chamber respectively.
2. The uranium plating device for the fission ionization chamber detector electrode according to claim 1, characterized in that: The rotary connection mechanism includes a limit bearing seat, a limit pin, a coupling, a spherical roller bearing and a slip ring rotating brush, wherein: The limiting bearing seat is arranged on the first mounting bracket through the limiting pin; The spherical roller bearing is arranged inside the limit bearing seat; The transmission shaft of the motor passes through the spherical roller bearing and is connected to the electrode fixing seat through the coupling; The slip ring rotating brush is arranged on the outside of the coupling.
3. The uranium plating device for the fission ionization chamber detector electrode according to claim 2, characterized in that: The electrode chamber is a cylindrical structure, including a shell, an end cover, an electrode to be plated and a central electrode, wherein: The end cap is made of organic glass and is disposed at the front and rear ends of the shell to form a sealed chamber as a whole with the shell; A positioning groove is provided on the outer side of the shell; The electrode to be plated and the central electrode are both arranged inside the shell; The electrode to be plated is led out through an electrode conductor and connected to the control box, and serves as a negative electrode during electroplating; The central electrode is a platinum electrode, which is connected to the control box through a retaining spring and serves as a positive electrode during electroplating.
4. The uranium plating device for the fission ionization chamber detector electrode according to claim 3, characterized in that: The sealing and fixing mechanism comprises a sealing clamp ring and a conical sealing ring. The sealing clamp ring is arranged on the positioning groove, and the conical sealing ring is arranged between the sealing clamp ring and the electrode fixing seat.
5. The uranium plating device for the fission ionization chamber detector electrode according to claim 4, characterized in that: It also includes a deflation mechanism, which includes a sensor guide rod, a laser sensor and a solenoid valve, wherein: The sensor guide rod is arranged on the outside of the coupling; The laser sensor is fixedly connected to the sensor guide rod; The solenoid valve is arranged on the electrode fixing seat and connected to the electrode chamber; During electroplating, the switch of the solenoid valve is controlled by sensing the laser emitted by the laser sensor.
6. The uranium plating device for the fission ionization chamber detector electrode according to claim 5, characterized in that: An electric heater is sleeved on the outer side of the electrode chamber shell. The electric heater is a tubular programmable constant temperature electric heater, fixed on the second mounting bracket, and electrically connected to the control box.
7. The uranium plating device for the fission ionization chamber detector electrode according to claim 6, characterized in that: A temperature measuring probe is arranged on the shell of the electrode chamber. The temperature measuring probe is a platinum thermal resistance temperature measuring probe and is electrically connected to the control box.
8. The uranium plating device for the fission ionization chamber detector electrode according to claim 7, characterized in that: The sampling and liquid discharging device is connected to the electrode chamber via a liquid discharging rotary valve.
9. The uranium plating device for the fission ionization chamber detector electrode according to claim 8, characterized in that: The control box is provided with a terminal, a switch, a control button and a display screen, wherein: The binding posts are power binding posts; The switch is a main power switch; The control knobs include a motor knob, a power setting button, a temperature adjustment knob, a temperature setting button and a speed adjustment button; The display screen includes a power display screen and a temperature display screen.