Under-beam automatic mechanical cleaning device for electron accelerator

Abstract

The utility model discloses an electron accelerator under-beam automatic mechanical cleaning device which comprises a bearing mechanism, a guide mechanism, a cleaning mechanism, a radiation shielding container and an automatic control system, the bearing mechanism comprises an upper-layer frame and a lower-layer frame and is used for fixing titanium foil, and a sliding rail of the guide mechanism provides a movement path for the cleaning mechanism. The cleaning mechanism comprises a solvent distribution mechanical arm and a surface treatment mechanical arm which cooperatively achieve titanium foil cleaning, the radiation shielding container protects the cleaning mechanism against radiation when not working, and the automatic control system controls the device to operate based on accelerator operation parameters or preset logic. The titanium foil cleaning device automatically cleans the titanium foil when the accelerator runs, improves the use efficiency of equipment, reduces the health risk of personnel, prolongs the service life of the equipment, and has important application value in the related field of the electron accelerator.

Description

TECHNICAL FIELD

[0001] The utility model electronic accelerator auxiliary equipment technical field, especially relates to a kind of electronic accelerator beam under automatic mechanical cleaning device. BACKGROUND

[0002] In the development process of modern science and technology, electronic accelerator plays an irreplaceable role in irradiation processing, nuclear medicine, nuclear environmental protection, nuclear agronomy and non-destructive testing and other key fields due to its unique performance advantages.Taking the field of nuclear environmental protection as an example, its wastewater treatment work frequently relies on electronic accelerator.However, the titanium foil under the beam is exposed to a humid and harsh environment with radiation for a long time, which greatly limits its service life and often has to be replaced after a period of use.To maintain stable and efficient irradiation effect under the beam, removing water stains, dust and other impurities attached to the surface of the titanium foil has become a daily necessary work.However, the current daily shutdown manual cleaning method has significant drawbacks.On the one hand, this operation directly affects the overall progress of sewage treatment, resulting in a significant reduction in processing efficiency.On the other hand, it greatly increases the labor intensity of the operator, causing great consumption of physical and mental energy.

[0003] To solve the above problems, it is urgent to develop a cleaning device suitable for radiation environment.The device aims to improve the stability and consistency of the treatment effect of the equipment, simplify the manual operation process and achieve efficient operation of the equipment.The ideal cleaning device not only can automatically complete the cleaning task during daily operation without shutdown, effectively improving the use efficiency of the equipment, but also can reduce the direct contact between personnel and radiation environment, reduce health risks and effectively protect the health of personnel.

[0004] In the prior art, although there are various automatic cleaning devices, most of them cannot meet the special environmental requirements under the beam of electronic accelerator.For example, radioactive source element automatic cleaning device and cleaning method (CN114713560A) is mainly used for cleaning 63Ni radioactive source sheet after electroplating.In actual operation, the radioactive source sheet is placed in the device, and ultrasonic technology is used to achieve cleaning and drying.However, the environment under the beam of electronic accelerator is extremely complex, with radiation energy as high as 2MeV, as well as high temperature, high humidity and ozone corrosion and other multiple factors.Under such environment, the ultrasonic device is easily damaged, thus losing its cleaning effect.

[0005] Looking at the nuclear transport container automatic cleaning device and cleaning system (CN117943363A), its original intention is to clean the inside of the container before maintenance to ensure that the radioactive dose is reduced to below the limit value for the container transporting radioactive substances.However, this device is designed based on cleaning a small amount of radioactive transport containers, and it cannot meet the actual needs in the face of strong radiation environment under the beam of electronic accelerator.

[0006] In addition, other common automatic cleaning devices are designed for normal environment equipment or container. Once applied to the electron accelerator beam, the special environment of radiation, humidity, corrosion and other factors will quickly destroy the device structure or function, so that it can not work normally. Moreover, part of the automatic cleaning device for cleaning the element with radioactive characteristics, the cleaning liquid cleaning method is not suitable for the cleaning of titanium foil under the electron accelerator beam. Because the titanium foil in the environment of radiation, humidity, ozone corrosion, the impurities attached to the surface of the titanium foil have special characteristics, the conventional cleaning liquid is not only difficult to effectively remove impurities, but also may cause further damage to the titanium foil, and thus affect the irradiation effect of the equipment.

[0007] Therefore, how to solve the above-mentioned problems existing in the prior art has become the research subject of the present application. Practical new type content

[0008] Therefore, the purpose of the present application is to provide an automatic mechanical cleaning device under the electron accelerator beam.

[0009] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0010] An automatic mechanical cleaning device under the electron accelerator beam, comprising:

[0011] A bearing mechanism configured to fix the titanium foil in the irradiation area;

[0012] A guide mechanism arranged along the bearing mechanism to provide a linear motion path;

[0013] A cleaning mechanism comprising a solvent dispensing mechanical arm and a surface treatment mechanical arm moving along the guide mechanism, respectively performing directional release of liquid cleaning medium and mechanical removal of residues on the surface of the titanium foil, the solvent dispensing mechanical arm and the surface treatment mechanical arm are connected with a driving mechanism;

[0014] A radiation shielding container installed on the bearing mechanism for accommodating the solvent dispensing mechanical arm and the surface treatment mechanical arm in a non-working state, so as to isolate them from the irradiation environment;

[0015] An automatic control system based on the operating parameters of the electron accelerator or the preset logic, the automatic control system is electrically connected with the driving mechanism to control the start-stop sequence, motion direction and cooperative work process of the solvent dispensing mechanical arm and the surface treatment mechanical arm.

[0016] Further, the bearing mechanism comprises a frame with upper and lower layers, and the titanium foil is fixed on the frame.

[0017] Further, the guide mechanism comprises slide rails arranged on both sides of the frame along the length direction thereof. Further, the guide mechanism comprises slide rails arranged on both sides of the frame along the length direction thereof.

[0018] Further, the solvent dispensing mechanical arm and the surface treatment mechanical arm are connected with the slide rail, and the solvent dispensing mechanical arm and the surface treatment mechanical arm reciprocate on the slide rail under the driving of the driving mechanism.

[0019] Further, the cleaning solvent of the solvent dispensing mechanical arm comprises alcohol, deionized water or detergent, and the cleaning material of the surface treatment mechanical arm is gauze, non-woven fabric or flexible brush body.

[0020] Further, the radiation shielding container is a protective box structure, the frame is provided with the protective box structure at both ends in the length direction, and the protective box structure is made of lead or lead glass.

[0021] Further, the driving mechanism is a buried driving mechanism.

[0022] Further, the slide rail is made of radiation-resistant and corrosion-resistant materials, including stainless steel, resin or composite materials.

[0023] Further, the solvent dispensing mechanical arm is a solvent spraying mechanical arm, and the spray head of the solvent spraying mechanical arm adopts an atomizing spray head or a pressure spray head.

[0024] Further, the driving mechanism comprises electric driving and pneumatic driving.

[0025] Compared with the prior art, the beneficial effects of the present application are that: the solvent dispensing mechanical arm and the surface treatment mechanical arm move left and right alternately, and the control system can simulate the manual cleaning method, realize the automatic cleaning of the titanium foil, effectively improve the cleaning efficiency, and support the cleaning without stopping. By setting the cleaning time and frequency, the cleanliness of the titanium foil can be ensured, and the automatic cleaning of the titanium foil can be realized. Not only the cleaning time is greatly shortened, but also the harm to the personnel caused by the contact with the radiation environment is greatly reduced, and the use efficiency of the equipment is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] ATTACHMENT Figure 1 The structure of the embodiment of the present application is shown in the schematic diagram.

[0028] The reference signs and component parts involved in the drawings are explained as follows:

[0029] 100. Frame; 101. Slide rail; 102. Surface treatment robotic arm; 103. Solvent dispensing robotic arm; 104. Protective box structure; 105. Titanium foil. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described through specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Existing automatic cleaning devices are mostly designed for equipment or containers under normal environmental conditions and cannot meet the needs of use in special environments. Automatic cleaning devices for components with radioactive properties, which use cleaning fluids, are unsuitable for cleaning titanium foil under electron accelerator beams. Titanium foil under electron accelerator beams is exposed to environments characterized by radiation, humidity, and ozone corrosion. Water or other impurities can adhere to the titanium foil, damaging it or affecting the equipment's irradiation efficiency. The automatic mechanical cleaning device proposed in this application uses a combination of spraying and wiping to clean water stains, dust, and other impurities from the titanium foil surface. See appendix. Figure 1 As shown, this application discloses an automated mechanical cleaning device under an electron accelerator beam, comprising a support mechanism, a guide mechanism, a cleaning structure, a radiation shielding container, and an automatic control system. The support mechanism is configured to fix the titanium foil 105 in the irradiation area. The guide mechanism extends along the support mechanism, providing a linear or curved motion path. The cleaning mechanism includes a solvent dispensing robotic arm 103 and a surface treatment robotic arm 102 that move along the guide mechanism, respectively performing directional release of liquid cleaning medium and mechanical removal of residues on the titanium foil surface. Both the solvent dispensing robotic arm 103 and the surface treatment robotic arm 102 are connected to a drive mechanism. The radiation shielding container is installed on the support mechanism to house the solvent dispensing robotic arm 103 and the surface treatment robotic arm 102 in a non-operating state, isolating them from the irradiation environment. The automatic control system is electrically connected to the drive mechanism based on the operating parameters of the electron accelerator or preset logic, and regulates the start-stop sequence, movement direction, and collaborative operation process of the solvent dispensing robotic arm 103 and the surface treatment robotic arm 102.

[0032] The following is a further explanation of the above structure:

[0033] See appendix Figure 1As shown, the bearing mechanism adopts a two-layer structure frame 100, and the titanium foil 105 is fixed on the frame 100. The frame 100 is made of high-strength metal material (such as stainless steel alloy) to ensure that it has sufficient strength and stability to support the titanium foil 105 and other components of the entire device. Preferably, the upper and lower two-layer frames 100 are connected by a plurality of uniformly distributed connecting columns, which are connected to the frame 100 by welding or bolting to ensure the firmness of the connection. The size of the frame 100 is accurately designed according to the space under the electron accelerator beam and the size of the titanium foil 105. Preferably, the frame 100 can be provided with a plurality of clamping grooves or clamps for fixing the titanium foil 105. The size of the clamping groove matches the thickness of the titanium foil 105, and the clamp adopts an adjustable design that can be tightened according to the actual situation of the titanium foil 105 to ensure that the titanium foil 105 is firmly fixed on the frame and avoids displacement or shaking during the cleaning process.

[0034] The guide mechanism includes slide rails 101 arranged on both sides of the frame 100 along the length direction. Preferably, the slide rail 101 adopts a dovetail slot type slide rail, which has good guiding and stability and can effectively prevent the cleaning mechanism from deviating during movement. The slide rail 101 is tightly connected to the frame 100 by bolting or welding. When installing, the straightness and levelness error of the slide rail 101 needs to be ensured within a very small range to ensure that the cleaning mechanism can smoothly move on the slide rail 101. Preferably, the surface of the slide rail 101 is treated in a special way, such as hard chromium plating, to improve its wear resistance and corrosion resistance. At the same time, a lubricating groove is provided on the slide rail 101, and a high-temperature and radiation-resistant lubricant is periodically injected into the lubricating groove to reduce the friction between the cleaning mechanism and the slide rail 101 and prolong the service life of the slide rail 101.

[0035] The cleaning mechanism comprises a solvent dispensing mechanical arm 103 and a surface treatment mechanical arm 102 moving along the slide rail 101, both of which are connected with the driving mechanism. Among them, the solvent dispensing mechanical arm 103 is a solvent spraying mechanical arm, the main structure of which is made of high-strength aluminum alloy material to reduce its own weight while ensuring sufficient strength. The solvent spraying mechanical arm is connected with the slide rail 101 through a sliding block, and a plurality of balls are arranged in the sliding block to enable flexible sliding on the slide rail 101. The spray head of the solvent spraying mechanical arm adopts an atomizing spray head or a pressure spray head. Preferably, the atomizing spray head is made of stainless steel material, and a special atomizing structure is arranged inside the atomizing spray head, which can uniformly atomize the cleaning solvent into small particles to ensure that the solvent can fully cover the surface of the titanium foil 105. The pressure spray head adopts an adjustable pressure design, which can adjust the spraying pressure according to the dirt degree of the surface of the titanium foil 105 to achieve the best cleaning effect. Preferably, the solvent dispensing mechanical arm 103 is also equipped with a solvent storage tank and a conveying pipeline. The solvent storage tank is made of corrosion-resistant plastic or stainless steel material, and its capacity is designed according to the cleaning requirements. The conveying pipeline adopts high-pressure and corrosion-resistant rubber or metal pipeline to connect the solvent storage tank with the spray head, and flow regulating valves and pressure sensors are arranged on the conveying pipeline to accurately control the spraying amount and pressure of the solvent.

[0036] The main structure of the surface treatment mechanical arm 102 is also made of aluminum alloy material and is connected with the slide rail 101 through a sliding block. The cleaning material of the surface treatment mechanical arm is gauze, non-woven fabric or flexible brush body. When gauze or non-woven fabric is used, it is fixed at the end of the mechanical arm and installed through a detachable fixing device for convenient replacement. The flexible brush body is made of high-temperature and radiation-resistant synthetic fiber material, and the hardness and density of its bristles are selected according to the cleaning requirements. Preferably, the surface treatment mechanical arm 102 is also equipped with a pressure adjusting device, which can adjust the contact pressure between the cleaning material and the titanium foil 105 according to the situation of the surface of the titanium foil 105 to ensure good cleaning effect without damaging the titanium foil 105. Under the driving of the driving mechanism, the solvent dispensing mechanical arm 103 and the surface treatment mechanical arm 102 can move parallelly from left to right or from right to left on the slide rail 101, so that the whole titanium foil 105 can be cleaned comprehensively.

[0037] The radiation shielding container is a protective box structure 104, and the frame 100 is provided with the protective box structure 104 at both ends in the length direction. The protective box structure 104 is made of lead or lead glass. The shell of the protective box structure 104 is made of high-strength metal material, and is filled with lead plates or lead glass to enhance the radiation shielding capacity. The size of the protective box structure 104 is designed according to the size of the solvent distribution mechanical arm 103 and the surface treatment mechanical arm 102, so that the solvent distribution mechanical arm 103 and the surface treatment mechanical arm 102 can be completely accommodated in the protective box structure 104 in a non-working state. The protective box structure 104 is provided with a sealing door sealed by a rubber sealing pad to prevent radiation leakage. Meanwhile, a positioning device is arranged in the protective box structure 104 to ensure that the mechanical arm is accurately parked at a specified position in the protective box structure 104.

[0038] The automatic control system is electrically connected with the driving mechanism, the flow regulating valve and the pressure sensor of the solvent distribution mechanical arm 103, the pressure regulating device of the surface treatment mechanical arm 102 and other equipment through a cable. Preferably, the automatic control system adopts a programmable logic controller, which has high reliability and stability. The automatic control system works based on the operating parameters (such as beam intensity) of the electron accelerator or preset logic. It can monitor the operating state of the electron accelerator in real time, and when the beam intensity decreases to a certain extent or to zero, the automatic control system starts the cleaning process according to the preset program. During the cleaning process, the automatic control system can accurately control the start-stop sequence, movement direction and cooperative working process of the solvent distribution mechanical arm 103 and the surface treatment mechanical arm 102. For example, the solvent distribution mechanical arm 103 is first controlled to spray solvent on the surface of the titanium foil 105, and after a certain time delay, the surface treatment mechanical arm 102 is started to wipe or brush. Meanwhile, the automatic control system can also set the cleaning time and frequency, and flexibly adjust according to different working requirements.

[0039] Preferably, the driving mechanism is a buried driving mechanism, including electric driving and pneumatic driving. Among them, the electric driving adopts a servo motor as a power source, and the servo motor has the characteristics of high precision and high response speed. The servo motor is connected with a screw rod transmission mechanism through a speed reducer, and the screw rod transmission mechanism converts the rotary motion of the motor into linear motion, thereby driving the cleaning mechanism to move on the slide rail 101. An encoder is arranged on the screw rod transmission mechanism, which can feedback the position information of the cleaning mechanism in real time, and the automatic control system accurately controls the movement speed and position of the cleaning mechanism according to the feedback information of the encoder. The pneumatic driving adopts a cylinder as an execution element, and the cylinder is connected with an air pump through an air pipe. The compressed air generated by the air pump is delivered to the cylinder through the air pipe, which drives the piston of the cylinder to move, thereby driving the cleaning mechanism to move on the slide rail 101. An electromagnetic valve and a pressure regulating valve are arranged on the air pipe, and the automatic control system controls the action of the cylinder by controlling the opening and closing of the electromagnetic valve, and adjusts the movement speed and thrust of the cylinder through the pressure regulating valve. The installation position of the buried driving mechanism is below the ground below the frame 100, which is protected by a protective shell made of radiation-resistant and corrosion-resistant materials, which can effectively prevent radiation and environmental factors from damaging the driving mechanism.

[0040] According to the operation of the electron accelerator and the dirt degree of the titanium foil, the automatic control system sets appropriate cleaning frequency and cleaning time. When the solvent dispensing mechanical arm 103 is an alcohol spraying mechanical arm and the surface treatment mechanical arm 102 is a gauze cleaning mechanical arm, if it is found that the dirt accumulates quickly on the titanium foil 105, the cleaning interval time can be appropriately shortened; if the dirt degree is light, the cleaning cycle can be extended. When the beam current decreases or decreases to zero during the operation of the electron accelerator, the automatic control system will start the cleaning process according to the set program. The alcohol spraying mechanical arm first sprays alcohol from right to left, so that the water stains and dirt such as dust on the titanium foil 105 are dissolved in alcohol, and then the gauze on the gauze cleaning mechanical arm is tightly attached to the titanium foil 105, and the alcohol dissolved with dirt is cleaned from left to right, completing a cleaning cycle. During the cleaning process, the operator can observe the cleaning situation through the monitoring system, and if the cleaning effect is not good, the cleaning parameters can be adjusted in time or the equipment operation state can be checked. The automatic control system can clean the titanium foil without stopping the electron accelerator. This greatly reduces the difficulty and time of manual cleaning, avoids frequent contact with the radiation environment, effectively reduces the risk of radiation hazards to personnel, and improves the use efficiency of the equipment.

[0041] Preferably, the sliding rail 101 of the embodiment is made of radiation-resistant and corrosion-resistant materials, including stainless steel, resin or composite materials. The stainless steel sliding rail has good corrosion resistance and mechanical properties. In a humid, ozone-corrosive environment under the beam, the stainless steel sliding rail is not prone to rust and corrosion, ensuring the smoothness and stability of the movement of the mechanical arm. Compared with ordinary materials, the service life of the stainless steel sliding rail is longer, reducing the frequency of equipment maintenance and replacement due to damage to the sliding rail 101, prolonging the service life of the automatic cleaning device as a whole, and reducing the maintenance cost of the equipment. The resin sliding rail is made of polytetrafluoroethylene and other radiation-resistant and corrosion-resistant resin materials, has self-lubricating properties, and can reduce friction. The composite material sliding rail combines the advantages of metal and resin, has high strength and good corrosion resistance.

[0042] Preferably, the main body structure of the solvent distribution mechanical arm 103 and the surface treatment mechanical arm 102 of the embodiment is made of aluminum alloy material. Aluminum alloy has the characteristics of light weight and high strength.

[0043] Preferably, as an implementable way, only an automatic cleaning device starting switch can be provided, and the device is started and stopped by manual control, so as to achieve the purpose of cleaning.

[0044] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electron accelerator in-beam robotic cleaning apparatus, comprising: include: The support mechanism is configured to fix the titanium foil in the irradiation area; A guiding mechanism, extending along the supporting mechanism, provides a linear motion path; The cleaning mechanism includes a solvent dispensing robotic arm and a surface treatment robotic arm that move along the guide mechanism, respectively performing directional release of liquid cleaning medium and mechanical removal of residues on the surface of the titanium foil. Both the solvent dispensing robotic arm and the surface treatment robotic arm are connected to the drive mechanism. A radiation shielding container, mounted on the support mechanism, is used to house the solvent dispensing robotic arm and the surface treatment robotic arm in a non-operational state, thus isolating them from the irradiation environment. The automatic control system, based on the operating parameters or preset logic of the electron accelerator, is electrically connected to the drive mechanism and regulates the start-stop sequence, movement direction, and collaborative operation process of the solvent dispensing robotic arm and the surface treatment robotic arm.

2. An in-beam automatic mechanical cleaning device for an electron accelerator according to claim 1, characterized in that The supporting mechanism includes a frame with upper and lower layers, and the titanium foil is fixed on the frame.

3. An in-beam automatic mechanical cleaning device for an electron accelerator according to claim 2, characterized in that The guiding mechanism includes slide rails disposed on both sides of the frame along its length.

4. An in-beam automatic mechanical cleaning device for an electron accelerator according to claim 3, characterized in that Both the solvent dispensing robotic arm and the surface treatment robotic arm are connected to the slide rail, and the solvent dispensing robotic arm and the surface treatment robotic arm reciprocate on the slide rail under the drive of the drive mechanism.

5. An in-beam automatic mechanical cleaning device for an electron accelerator according to claim 1, characterized in that, The cleaning solvent of the solvent dispensing robot arm includes alcohol, deionized water, or detergent; the cleaning material of the surface treatment robot arm is gauze, non-woven fabric, or a flexible brush.

6. An in-beam automatic mechanical cleaning device for an electron accelerator as defined in claim 3, characterized in that The radiation shielding container is a protective box structure, and the protective box structure is installed at both ends of the frame along its length. The protective box structure is made of lead or lead glass.

7. An in-beam automatic mechanical cleaning device for an electron accelerator as defined in claim 3, characterized in that The drive mechanism is an underground drive mechanism.

8. An in-beam automatic mechanical cleaning device for an electron accelerator as defined in claim 3, characterized in that The slide rail is made of radiation-resistant and corrosion-resistant materials, including stainless steel, resin, or composite materials.

9. An in-beam automatic mechanical cleaning device for an electron accelerator according to claim 1, characterized in that, The solvent dispensing robotic arm is a solvent spraying robotic arm, and the nozzle of the solvent spraying robotic arm is an atomizing nozzle or a pressure nozzle.

10. An in-beam automatic mechanical cleaning device for an electron accelerator according to claim 1, characterized in that, The drive mechanism includes electric drive and pneumatic drive.

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