Induction charge atomizer

Abstract

The invention discloses an induction charge atomizer. The induction charge atomizer comprises a charge module and an atomization module. The charge module comprises an electrostatic generator and a charge ring, and the electrostatic generator is electrically connected with the charge ring and used for generating an induced electric field in the charge ring. The atomization module comprises a material storage tank and a portable spray gun, and the portable spray gun is communicated with the material storage tank and used for atomizing material liquid from the material storage tank and generating aerosol. The portable spray gun comprises a body part and an adjusting device connected with the body part, a spray head is arranged on the body part, the spray head faces a charged ring and is used for spraying aerosol to an induced electric field in the charged ring, the aerosol generates induced charges in the process of penetrating through the induced electric field in the charged ring, and the charged ring is arranged on the adjusting device. The adjusting device is used for driving the charge ring to get close to or away from the nozzle in the first direction, and the first direction is perpendicular to the radial direction of the charge ring. The control effect on diffusion of the radioactive aerosol in a limited space can be improved.

Description

Technical Field

[0001] The present application relates to the field of atomization fixation technology, and in particular to an induction charging atomizer. Background Art

[0002] Radioactive aerosol refers to a dispersed system composed of radioactive solid or liquid particles suspended in a gas medium, which mainly causes internal radiation hazards to the human body through inhalation. A large amount of radioactive aerosol is generated during the inspection and maintenance of glove boxes and the decommissioning of nuclear facilities, which not only poses a huge threat to the health of workers, but also poses a risk of radioactive material diffusion. In related technologies, the diffusion of radioactive aerosols is controlled by atomization fixation technology. The diffusion of radioactive aerosols between 0.1μm and 1μm (also known as the Greenfield gap) is difficult to control, and there is a problem of unsatisfactory control effect on the diffusion of radioactive aerosols in a limited space. Summary of the Invention

[0003] In view of this, an embodiment of the present application provides an inductively charged atomizer for improving the control effect on the diffusion of radioactive aerosols in a confined space.

[0004] To achieve the above objectives, the present invention provides an induction charging atomizer, comprising:

[0005] A charging module, comprising an electrostatic generator and a charging ring, wherein the electrostatic generator is electrically connected to the charging ring and is configured to generate an induced electric field in the charging ring;

[0006] An atomization module, the atomization module comprising a storage tank and a portable spray gun, the portable spray gun being in communication with the storage tank and configured to atomize the liquid in the storage tank and generate an aerosol;

[0007] The portable spray gun comprises a main body and an adjusting device connected to the main body.

[0008] The main body is provided with a nozzle, which faces the charged ring and is used to spray the aerosol toward the induced electric field inside the charged ring. The aerosol generates induced charges in the process of passing through the induced electric field inside the charged ring.

[0009] The charged ring is arranged on the regulating device, and the regulating device is used to drive the charged ring to approach or move away from the nozzle along a first direction, where the first direction is perpendicular to the radial direction of the charged ring.

[0010] In one embodiment, the charging ring is formed by at least two connecting rings connected in sequence, the two connecting rings are elastic members, and the connection positions of at least some of the connecting rings are adjustable to adjust the diameter of the charging ring.

[0011] In one embodiment, the adjustment device includes a support, a connecting member and a driving unit, the support is connected to the main body, the connecting member and the driving unit are arranged on the support, the connecting member is connected to the charging ring, and the driving unit drives the connecting member to move along the first direction.

[0012] In one embodiment, the driving unit includes a driving member and a lead screw, the connecting member is sleeved on the lead screw, and the driving member drives the lead screw to rotate, thereby driving the connecting member to move along the first direction.

[0013] In one embodiment, the connector is insulated from the charging ring; and / or,

[0014] The support is insulated and connected to the main body.

[0015] In one embodiment, the electrostatic generator may output a voltage in the range of 10 kV to 100 kV.

[0016] In one embodiment, the induction charging atomizer includes a control module,

[0017] The control module is electrically connected to the charging module, and the control module is used to control the output voltage and / or output current of the charging module; and / or,

[0018] The control module is electrically connected to the atomization module, and is used to control the atomization amount of the atomization module and / or the distance between the charged ring and the nozzle.

[0019] In one embodiment, the atomization module includes a high-pressure pump, which is connected to the storage tank and the portable spray gun respectively, and is used to pump the liquid to the spray head.

[0020] In one embodiment, the atomization module includes a plurality of the storage tanks, and the portable spray gun includes a mixer, one end of the mixer is connected to the portable spray gun, and the other end is connected to each of the storage tanks, and the material liquid in each of the storage tanks is mixed in the mixer and then flows into the portable spray gun.

[0021] In one embodiment, the inductively charged atomizer includes a moving module, which includes a shell, a drive motor, a power supply assembly, and a moving part. The charging module, the atomization module, the drive motor, and the power supply assembly are all arranged in the shell, and the shell is arranged on the moving part. The drive motor drives the moving part to move, thereby driving the inductively charged atomizer to move.

[0022] The inductively charged atomizer provided in the embodiment of the present application, on the one hand, by setting an atomization module, the atomization module atomizes the liquid that can be combined with the radioactive aerosol, and the aerosol formed by atomization itself can be combined with the radioactive aerosol and then settled, thereby achieving control over the diffusion of the radioactive aerosol. By setting a charging module, the charging module generates an induced electric field, and the aerosol formed by atomization can generate an induced charge when passing through the induced electric field. Under the action of Coulomb adsorption, the aerosol formed by atomization can be further charged to further improve the binding ability of radioactive aerosols of 0.1μm-1μm (i.e., Greenfield gap) that are difficult to combine, thereby improving the control effect of the diffusion of radioactive aerosols. On the other hand, the induced electric field is generated by the charged ring. The setting of the charged ring is conducive to reducing the size of the equipment and facilitating work in a limited space. The charged ring can generate a stable induced electric field in a small range, reducing the impact on the radioactive aerosol itself in the environment. It is suitable for working scenes in limited spaces and is conducive to improving the control effect of the inductively charged atomizer on the diffusion of radioactive aerosols in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal structure of an induction charging atomizer in one embodiment of the present application;

[0024] Figure 2 This is a schematic structural diagram of an induction charging atomizer in one embodiment of the present application;

[0025] Figure 3 This is a schematic structural diagram of a portable spray gun in one embodiment of the present application;

[0026] Figure 4 This is a particle size distribution diagram of a water-based fixative with a viscosity of 500 cp after being atomized using the induction charging atomizer of the first embodiment of the present application;

[0027] Figure 5 The present invention provides experimental results on the effect of post-atomization charging on the suppression effect of cerium oxide aerosol using the induction charging atomizer according to an embodiment of the present application.

[0028] Description of Reference Numerals

[0029] 10. Charging module; 11. Electrostatic generator; 12. Charging ring; 121. Connecting ring; 20. Atomization module; 21. Storage tank; 211. Feed port; 212. Pressure relief valve; 213. Discharge port; 214. Sensor; 22. Portable spray gun; 221. Main body; 2211. Nozzle; 222. Adjustment device; 2221. Support; 2222. Connector; 2223. Drive unit; 2224. Drive member; 2225. Screw; 223. Mixer; 23. High-pressure pump; 24. Air compressor; 30. Mobile module; 31. Housing; 32. Power supply assembly; 33. Moving member; 34. Power pusher; 35. Storage member; 36. Storage frame; 37. Drive motor; 40. Control panel; 100. Induction charging atomizer. DETAILED DESCRIPTION

[0030] It should be noted that, unless there is a conflict, the embodiments in this application and the technical features in the embodiments can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0031] In the description of the embodiments of the present application, it should be noted that the terms "ray transmission direction," "height direction," "first direction," "second direction," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. These orientation terms are merely for the convenience of describing the embodiments of the present application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Radioactive aerosols refer to a dispersed system composed of radioactive solid or liquid particles suspended in a gas medium, which mainly causes internal radiation hazards to the human body through inhalation. Large amounts of radioactive aerosols are generated during glove box inspection and maintenance and nuclear facility decommissioning, which not only pose a huge threat to the health of workers, but also pose a risk of radioactive material spread. Medical research shows that the smaller the aerosol diameter, the deeper it enters the respiratory tract. Aerosols below 2μm can penetrate into the bronchioles and alveoli, increasing the risk of acute respiratory diseases and cardiovascular and cerebrovascular diseases, and may also induce chronic diseases such as lung cancer, COPD, cardiovascular and cerebrovascular diseases. However, aerosols between 0.1μm and 1μm have the lowest suppression efficiency. This gap is also called the Greenfield gap. Radioactive aerosols within this range are difficult to control.

[0033] Among the current technologies for controlling radioactive aerosols, the atomization fixation technology has the advantages of high control efficiency, less secondary pollution, and is not easily restricted by the use occasion, and can meet the needs of optimizing personnel radiation protection. The atomization fixation technology in the related technology uses an atomization generator to disperse a fixative of a certain viscosity into small droplets in the micron range, and diffuse it in the space containing radioactive aerosols. Small droplets and radioactive aerosols form large particles through processes such as collision and adhesion. The large particles settle to the ground under the action of gravity and form a peelable film. However, there is still a problem of unsatisfactory control effect in controlling the diffusion of radioactive aerosols between 0.1μm-1μm (also known as Greenfield gap) in a limited space.

[0034] The present application embodiment provides an induction charging atomizer, see Figures 1 to 3 The induction charging atomizer 100 includes a charging module 10 and an atomizing module 20. The charging module 10 includes an electrostatic generator 11 and a charging ring 12. The electrostatic generator 11 is electrically connected to the charging ring 12 and is used to generate an induced electric field within the charging ring 12. The atomizing module 20 includes a material storage tank 21 and a portable spray gun 22. The portable spray gun 22 is connected to the material storage tank 21 and is used to atomize the liquid from the material storage tank 21 to generate an aerosol. Among them, the portable spray gun 22 includes a main body 221 and an adjusting device 222 connected to the main body 221. A nozzle 2211 is provided on the main body 221, and the nozzle 2211 faces the charged ring 12, and is used to spray the aerosol toward the induced electric field inside the charged ring 12. The aerosol generates induced charges in the process of passing through the induced electric field inside the charged ring 12. The charged ring 12 is set on the adjusting device 222, and the adjusting device 222 is used to drive the charged ring 12 to approach or move away from the nozzle 2211 along a first direction, and the first direction is perpendicular to the radial direction of the charged ring 12.

[0035] The charging module 10 is a module in the charged atomizer that generates an induced electric field, causing the aerosol to acquire an electric charge as it passes through. The electrostatic generator 11 in the charging module 10 is electrically connected to the charging ring 12, providing electrical energy to the charging ring 12, thereby forming an induced electric field within it. The charging ring 12 is an annular component made of a material with good conductivity, such as copper or aluminum. When electrically connected to the electrostatic generator 11, an induced electric field is generated within its interior, causing the aerosol to be charged as it passes through. Radioactive nuclides undergo alpha or beta decay within or on the surface of the aerosol, causing the radioactive aerosol to become charged. The aerosol ejected from the nozzle 2211 acquires an electric charge as it passes through the induced electric field of the charging ring 12, facilitating the binding of the two through Coulomb adsorption. This reduces the suspension time and diffusion range of the radioactive aerosol in the air, thereby reducing harm to the environment and the public.

[0036] The charging ring 12 forms an induced electric field, and the charging voltage required for inductive charging is relatively low, which also reduces the volume requirement of the mobile power supply.

[0037] The charged ring 12 is made of a material with good electrical conductivity, such as copper, aluminum, etc., to improve the stability of the induced electric field. The charged ring 12 is connected to the electrostatic generator 11 through a high-voltage cable.

[0038] The atomization module 20 is the module in the induction charging atomizer 100 responsible for converting the liquid feed into an aerosol. The storage tank 21 is used to store the liquid feed to be atomized, providing a source of material for the atomization process. The portable spray gun 22 is connected to the storage tank 21 to atomize the liquid feed into an aerosol.

[0039] The aerosol here refers to a mixture of tiny particles and gas formed after the liquid is atomized. The liquid here can be a solidifying agent that can combine with the radioactive aerosol. The solidifying agent is atomized, and the aerosol formed can form large particles through collision and adhesion with the radioactive aerosol. The large particles settle to the ground under the action of gravity and form a peelable film, thereby achieving the purpose of radioactive aerosol isolation.

[0040] The capacity specifications of storage tank 21 are determined by the designed duration and scenario of use and are not limited here. The type of liquid in storage tank 21 must be determined based on the characteristics of the radioactive aerosol to be treated in the working environment (such as the type of nuclide and particle size distribution), so that the liquid can be atomized into an aerosol by portable spray gun 22. When this aerosol passes through the induced electric field of charged ring 12, it generates induced charges, which then combine with the radioactive aerosol, promote its sedimentation through Coulomb adsorption, and reduce the risk of radioactive material diffusion.

[0041] The main body 221 is the main body of the portable spray gun 22, and is provided with a nozzle 2211. The nozzle 2211 faces the charged ring 12 and is used to atomize the liquid and spray the aerosol toward the induced electric field inside the charged ring 12.

[0042] The structure of the main body 221 is not limited here. The main body 221 can be ergonomically designed to make it more comfortable for handheld operation and reduce operator fatigue.

[0043] The type of nozzle 2211 can be selected based on the needs, such as a pressure nozzle 2211, an ultrasonic nozzle 2211, etc. Different types of nozzles 2211 have different atomized particle sizes and efficiencies. The selection should be based on the viscosity, surface tension, and other properties of the liquid as well as the atomization requirements. This is not limited here.

[0044] The portable spray gun 22 has a handheld operation function and can be flexibly moved to any position to generate the charged aerosol. In some embodiments, the portable spray gun 22 also supports fixed installation to meet the needs of different scenarios.

[0045] The adjustment device 222 is connected to the main body 221 and is used to drive the charging ring 12 to move in a first direction to adjust the distance between the charging ring 12 and the nozzle 2211. The closer the distance between the charging ring 12 and the nozzle 2211, the greater the intensity of the induced charge generated by the aerosol when passing through the induced electric field. Therefore, the adjustment device 222 can adjust the charge intensity by changing the distance between the charging ring 12 and the nozzle 2211.

[0046] The adjusting device 222 is connected to the main body 221, and the charging ring 12 is provided on the adjusting device 222. Therefore, when the operator operates the portable spray gun 22, the charging ring 12 moves synchronously with the portable spray gun 22, and the relative distance between the two remains unchanged.

[0047] The driving mode of the adjustment device 222 is not limited here, for example, manual driving, electric driving, etc.

[0048] The first direction is a direction perpendicular to the radial direction of the charged ring 12 (eg, the axial direction). The regulating device 222 drives the charged ring 12 to move along this direction to change its relative position with the nozzle 2211 .

[0049] Exemplarily, the first direction is a direction passing through the center of the charged ring 12 and perpendicular to the ring surface, ensuring the accuracy of the moving direction.

[0050] The inductive charging atomizer 100 provided in the embodiment of the present application, on the one hand, by providing an atomization module 20, the atomization module 20 atomizes the liquid that can combine with the radioactive aerosol. The aerosol formed by atomization can itself combine with the radioactive aerosol and then settle, thereby achieving control over the diffusion of the radioactive aerosol. By providing a charging module 10, the charging module 10 generates an induced electric field. The aerosol formed by atomization can generate an induced charge when passing through the induced electric field. Under the action of Coulomb adsorption, the aerosol formed by atomization is charged, which can further improve the binding ability of radioactive aerosols of 0.1μm-1μm (i.e., the Grunfield gap) that are difficult to combine, thereby improving the control effect of the diffusion of radioactive aerosols. On the other hand, the induced electric field is generated by the charged ring 12. The setting of the charged ring 12 is conducive to reducing the size of the equipment and facilitating work in a limited space. The charged ring 12 can generate a stable induced electric field in a small range, reducing the impact on the radioactive aerosol itself in the environment. It is suitable for working scenarios in limited spaces and is conducive to improving the control effect of the induction charged atomizer 100 on the diffusion of radioactive aerosols in a limited space.

[0051] In some embodiments, see Figure 3 The charging ring 12 is formed by at least two connecting rings 121 connected in sequence. The two connecting rings 121 are elastic members, and the connection position of at least part of the connecting rings 121 is adjustable to adjust the diameter of the charging ring 12.

[0052] The term "sleeve connection" refers to the connection of the connecting rings 121 by nesting them (e.g., a large ring nested within a small ring) to form a retractable ring structure. For example, multiple connecting rings 121 can form a multi-level nested structure (e.g., three or more layers), forming a multi-level adjustable diameter charging ring 12, thereby expanding the diameter adjustment range.

[0053] In some embodiments, the charging ring 12 is composed of three connecting rings 121, which can realize switching between three diameter modes: small, medium, and large.

[0054] "Adjustable connection position" means that the fixed points or connection points between the connecting rings 121 can be changed. By adjusting the relative positions of the connecting rings 121, the circumference of the charged ring 12 is changed, thereby achieving diameter adjustment. The connecting rings 121 are designed with elastic components. When the ring curvature changes due to diameter adjustment, the elastic material deforms to maintain the circular contour of the ring, reducing any elliptical or deformation caused by diameter adjustment and ensuring uniform electric field distribution.

[0055] The connecting ring 121 is an elastic part. When the connection position of part of the connecting ring 121 is adjusted, causing the diameter of the charged ring 12 to change, the circular curvature formed by the charged ring 12 changes. At this time, since the connecting ring 121 is an elastic part, the connecting ring 121 can undergo elastic deformation to adapt to the circular curvature of the charged ring 12 after adjustment, thereby improving the roundness of the charged ring 12.

[0056] When two connecting rings 121 are connected in sequence, the large ring and the small ring are connected in a nested manner (such as the small ring is partially embedded in the large ring). The connection position adjustment can be for one or both ends of a single connecting ring 121, and the adjustment method of the other end corresponding to the connecting ring 121 is similar.

[0057] The adjustment methods of the connecting ring 121 include but are not limited to: manual adjustment (such as mechanical structures such as knobs and buckles, suitable for manual operation scenarios); electric adjustment (such as built-in micro motors or hydraulic devices, automatic adjustment is achieved through the control system, suitable for industrial scenarios).

[0058] For example, see Figure 3 The charging ring 12 is composed of a large ring and a small ring. The large ring is a tubular structure with a puncture-proof space at both ends. The two ends of the small ring can be inserted into the puncture-proof space respectively. By adjusting the length of the small ring extending into the puncture-proof space, the diameter of the charging ring 12 can be adjusted.

[0059] By adjusting the diameter of the charging ring 12, it is possible to match nozzles 2211 of different sizes or adapt to operations in limited spaces. For example, the diameter can be reduced when used in a narrow area, and the diameter can be increased in an open area to cover a wider range of aerosols. The diameter-adjustable charging ring 12 can adjust the electric field strength distribution according to the aerosol flow rate and speed. For example, reducing the diameter can concentrate the electric field strength and enhance the charging effect of small-flow aerosols; increasing the diameter can expand the electric field coverage range and adapt to large-flow spray scenarios. Combining the adjustment device 222 (such as distance adjustment) with the diameter adjustment, the charge of the aerosol can be precisely controlled. For example, for Greenfield gap aerosols of 0.1μm-1μm, by reducing the diameter and shortening the distance from the nozzle 2211, its induced charge strength is enhanced and the adsorption efficiency is improved.

[0060] In some embodiments, see Figure 3 The adjusting device 222 includes a support 2221, a connecting member 2222 and a driving unit 2223. The support 2221 is connected to the main body 221. The connecting member 2222 and the driving unit 2223 are arranged on the support 2221. The connecting member 2222 is connected to the charged ring 12. The driving unit 2223 drives the connecting member 2222 to move along the first direction.

[0061] The support 2221 is used to be fixedly connected to the main body 221 of the portable spray gun 22 , and provides a mounting carrier for the connecting member 2222 and the driving unit 2223 .

[0062] The specific structure of the support 2221 is not limited herein. For example, a fixed support 2221 can be used, rigidly connected to the main body 221, suitable for scenarios requiring stable support. The fixed support 2221 can be designed in an L-shaped or U-shaped structure to accommodate different spray gun models. Alternatively, a movable support 2221 can be configured by adding a universal joint or rotary joint to allow the support 2221 to rotate within a small range to coordinate with the position adjustment of the charging ring 12.

[0063] The connecting member 2222 is used to connect the charged ring 12 and the driving unit 2223 , and the driving unit 2223 drives the charged ring 12 to move along the first direction to achieve position adjustment of the charged ring 12 .

[0064] The driving unit 2223 is the power source of the adjusting device 222 , and drives the connecting member 2222 to move by mechanical or electric means to achieve the position adjustment function of the charging ring 12 .

[0065] The adjustment device 222 consists of a support 2221, a connector 2222 and a drive unit 2223. The support 2221 is fixedly connected to the spray gun body 221, and the connector 2222 and the drive unit 2223 are installed on the support 2221, wherein the connector 2222 is connected to the charged ring 12. When the drive unit 2223 is working, it will drive the connector 2222 to move along the first direction (perpendicular to the radial direction of the charged ring 12), thereby moving the charged ring 12 closer to or away from the nozzle 2211, thereby adjusting the distance between the two. This structural design separates the driving function from the supporting function, and improves the stability and accuracy of the adjustment through modular combination.

[0066] In this embodiment, the adjustment device 222 consists of a support 2221, a connector 2222, and a drive unit 2223. The support 2221 is fixedly connected to the spray gun body 221. The connector 2222 and drive unit 2223 are mounted on the support 2221, with the connector 2222 connected to the charging ring 12. When the drive unit 2223 is in operation, it drives the connector 2222 to move in a first direction, thereby moving the charging ring 12 closer to or further away from the nozzle 2211, thereby adjusting the distance between the two. This separation of the drive and support functions improves the stability and accuracy of the adjustment through modular combination.

[0067] In some embodiments, see Figure 3 The driving unit 2223 includes a driving member 2224 and a lead screw 2225. The connecting member 2222 is sleeved on the lead screw 2225. The driving member 2224 drives the lead screw 2225 to rotate, thereby driving the connecting member 2222 to move along the first direction.

[0068] For example, a guide rail (such as a linear guide rail) can be provided on the support 2221 to slide with the connecting member 2222 to prevent deviation during movement and improve movement stability.

[0069] For example, limit switches can be installed at both ends of the screw 2225 to prevent the connecting member 2222 from over-travel movement and protect the safety of the structure.

[0070] In this embodiment, the driving unit 2223 adopts a transmission structure of a driving member 2224 plus a lead screw 2225. The driving member 2224 (such as a motor) rotates after being energized, driving the lead screw 2225 to rotate synchronously; the inner hole of the connecting member 2222 is threadedly matched with the lead screw 2225 (similar to a nut on a bolt). When the lead screw 2225 rotates, the connecting member 2222 moves linearly along the axis direction of the lead screw 2225 (i.e., the first direction) due to the thread transmission characteristics; the connecting member 2222 is fixedly connected to the charged ring 12, thereby driving the charged ring 12 to move along the first direction to achieve adjustment of the distance between the charged ring 12 and the nozzle 2211.

[0071] In some embodiments, the connector 2222 is insulated from the charging ring 12 .

[0072] For example, the connector 2222 may be made of insulating materials such as polytetrafluoroethylene (PTFE) and epoxy resin to solve the problem of charge leakage caused by metal materials.

[0073] If connector 2222 is not insulated from charging ring 12, charge could be conducted through connector 2222 to drive unit 2223 or body 221, causing the electric field strength of charging ring 12 to weaken and reducing aerosol charging efficiency. Furthermore, charge could accumulate in other components, potentially causing short circuits or interfering with the device's electronic components (such as drive motor 37). Insulating connector 2222 from charging ring 12 can address these issues.

[0074] In some embodiments, the support 2221 is insulated from the main body 221 .

[0075] For example, the insulating connection between the support 2221 and the main body 221 can be achieved through a ceramic bracket and a rubber insulating pad, and the support 2221 cannot become a charge conducting medium.

[0076] The support 2221 is insulated from the main body 221 to prevent the high voltage electric field from being transmitted through the support 2221 to the main body of the device, thereby reducing the risk of electric shock to the operator. The metal structure of the main body 221 (such as the casing) can generate sparks due to charge accumulation, which is particularly suitable for explosion-proof requirements in radioactive environments.

[0077] In some embodiments, the electrostatic generator 11 may output a voltage in the range of 10 kV to 100 kV.

[0078] The electrostatic generator 11 can output a voltage in the range of 10kV to 100kV. The specific output range is not limited here, for example, it can be 10kV, 20kV, 30kV, 40kV, 50kV, 60kV, 70kV, 80kV, 90kV, 100kV, etc.

[0079] Exemplarily, the polarity of the electrostatic generator 11 is adjustable.

[0080] In some embodiments, the induction charging atomizer 100 includes a control panel 40 , which can display real-time output voltage, output current, and overload alarm.

[0081] In some embodiments, the induction charging atomizer 100 includes a control module electrically connected to the charging module 10 , and the control module is configured to control an output voltage and / or an output current of the charging module 10 .

[0082] The control module is the core unit of the induction charging atomizer 100 for regulating system operating parameters, and realizes precise control of the charging module 10 and other components through electrical signal connection.

[0083] The output voltage is the potential difference output by the electrostatic generator 11 in the charging module 10, which directly affects the intensity of the induced electric field.

[0084] The output current is the amount of charge flowing when the charging module 10 is working, which affects the electric field stability and the aerosol charging efficiency.

[0085] The control module is electrically connected to the charging module 10 and can regulate the output voltage and / or current of the charging module 10. For example, by increasing the output voltage through the control module, the induced electric field strength of the charging ring 12 is enhanced, making the charging effect more significant when aerosols pass through it. Adjusting the output current optimizes the stability of the electric field and avoids the decrease in charging efficiency caused by current fluctuations. The intervention of the control module allows the operating parameters of the charging module 10 to be dynamically adjusted to meet the radioactive aerosol control requirements in different scenarios.

[0086] In some embodiments, the control module is electrically connected to the atomization module 20 , and the control module is used to control the atomization amount of the atomization module 20 and / or the distance between the charging ring 12 and the nozzle 2211 .

[0087] The atomization volume is the total amount of aerosol generated by the atomization module 20 per unit time, and the atomization volume is determined by the type, pressure, and flow rate of the nozzle 2211 .

[0088] Exemplarily, the control module changes the injection speed of the liquid material by adjusting the air supply pressure of the spray gun (such as a solenoid proportional valve) to achieve linear control of the atomization amount.

[0089] Exemplarily, the control module controls the atomization amount by regulating the flow rate, such as by controlling the flow rate of a delivery pump or the flow rate of a solenoid valve.

[0090] The distance between the charged ring 12 and the nozzle 2211 refers to the axial distance between the nozzle 2211 outlet and the center of the charged ring 12 (i.e., the distance in the "first direction" mentioned above). This distance affects the residence time of the aerosol in the induced electric field and the charging effect.

[0091] Exemplarily, the driving unit 2223 is a stepper motor or a servo motor. The control module drives the stepper motor or the servo motor to drive the charged ring 12 to move along the first direction through the screw 2225 nut mechanism (as described above).

[0092] By coordinated control of the atomization amount and the position of the charging ring 12 by the control module, the induction charging atomizer 100 achieves precise regulation, which not only significantly improves the control efficiency of radioactive aerosols, but also enhances the adaptability and safety of the equipment in complex scenarios.

[0093] In some embodiments, the charged nebulizer further includes a control panel 40 , and an operator can operate and monitor various parameters in the charging module 10 and the atomization module 20 in the induction charging nebulizer 100 on the control panel 40 .

[0094] In some embodiments, depending on the type and viscosity of the slurry, the corresponding optimal charging relative position and optimal charging voltage are different. The driving member 2224 can be used to drive the screw 2225 to rotate and adjust the distance between the charging ring 12 and the nozzle 2211 to adapt to different situations. Taking uranium as an example, its decay mode is alpha decay, and the alpha particles produced will have a positive charge. Various parameters related to uranium are stored in the control panel 40. After selecting uranium on the control panel 40, the device will automatically set the electrode of the charging ring 12 to the positive electrode and adjust the distance between the charging ring 12 and the nozzle 2211 according to the target particle size of the fixative.

[0095] In some embodiments, see Figure 1 and Figure 2 The atomization module 20 includes a high-pressure pump 23 , which is connected to the storage tank 21 and the portable spray gun 22 respectively. The high-pressure pump 23 is used to pump the liquid to the spray head 2211 .

[0096] The high-pressure pump 23 is a pump body that can generate a relatively high fluid pressure. It pressurizes the liquid material through mechanical work so that the liquid material has sufficient kinetic energy to achieve atomization.

[0097] The inlet of high-pressure pump 23 is connected to storage tank 21, and the outlet is connected to portable spray gun 22, forming a liquid delivery path. When operating, high-pressure pump 23 pressurizes the liquid in storage tank 21 and pumps it to the spray gun. The liquid is atomized at nozzle 2211 due to the high pressure difference, generating an aerosol that is sprayed toward the induced electric field of charged ring 12.

[0098] In some embodiments, a proportional pressure reducing valve or a pressure sensor 214 is installed at the outlet of the high-pressure pump 23, and the pump pressure is adjusted in real time by the control module to adapt to different feed liquid viscosities.

[0099] In other embodiments, a precision filter (such as a filter element) is provided at the outlet of the storage tank 21 or the inlet of the high-pressure pump 23 to prevent impurities in the liquid from clogging the nozzle 2211 or wearing the pump body.

[0100] The high pressure provided by the high-pressure pump 23 fully breaks up the liquid at the nozzle 2211, generating finer and more uniform aerosol particles. High-pressure atomization aerosol is more evenly distributed and covers a wider area, making it particularly suitable for rapid treatment of large areas of radioactive contamination.

[0101] In some embodiments, the atomization module 20 includes a flow meter, two pressure regulating valves, a liquid level sensor 214, and an electrical signal transmission device. The pressure regulating valve can be controlled via a control panel 40 and the electrical signal transmission device, and the flow meter and liquid level sensor 214 are used to display the output in real time. The relative position of the charging ring 12 and the spray gun, as well as the charging voltage, can be adjusted via the control panel 40. Through extensive preliminary experiments, this device has determined the optimal charging ring 12 position and charging voltage for different types and viscosities of fixatives, and has integrated this data into the control panel 40. In actual use, high-quality charging can be achieved by simply entering the type and viscosity of the liquid on the control panel 40.

[0102] In some embodiments, the atomization module 20 includes an air compressor 24 and a stainless steel filter. The air compressor 24 provides power to the high-pressure pump 23. The feed pump and solenoid valve can be controlled via a panel. The stainless steel filter is used to filter out foreign matter that may be present in the fixative and prevent clogging of the nozzle 2211.

[0103] In some embodiments, the atomization module 20 includes multiple storage tanks 21, and the portable spray gun 22 includes a mixer 223. One end of the mixer 223 is connected to the portable spray gun 22, and the other end is connected to each storage tank 21. The material liquid in each storage tank 21 is mixed in the mixer 223 and flows into the portable spray gun 22.

[0104] The mixer 223 is an intermediate component connecting the storage tank 21 and the spray gun. Its internal structure is used to evenly mix the liquid delivered by each storage tank 21 so that the composition of the liquid is uniform before atomization.

[0105] Multiple storage tanks 21 store different liquid materials (such as adsorbents, curing agents, and solvents) and are connected to the inlet of a mixer 223 via pipes. The outlet of the mixer 223 is connected to a portable spray gun 22. After the liquid materials are mixed in the mixer 223 according to the set ratio, they are atomized into an aerosol by the spray gun.

[0106] The design of multiple storage tanks 21 and mixer 223 enables the inductively charged atomizer 100 to precisely control complex radioactive aerosols by mixing different liquids in real time. This modular, configurable structure not only improves processing efficiency but also allows for loading different liquids for different types of radioactive aerosols, expanding the application range of the inductively charged atomizer 100.

[0107] In some embodiments, see Figure 1The atomization module 20 includes two 15L stainless steel storage tanks 21 and corresponding pipelines. The storage tank 21 is acid and alkali resistant, and a discharge port 213 is reserved at the bottom for excess liquid and cleaning. Five interfaces are reserved on the top, which are respectively connected to the feed port 211, the pressure relief valve 212, the pressure regulating valve (air intake, pressure regulation), the sensor 214 (such as the pressure sensor 214, the liquid level sensor 214, which outputs the signal to the control panel 40), and the safety valve. The portable spray gun 22 can be extended to a position of 2m. In actual use, you only need to enter the parameters on the control panel 40 and pull the trigger to use it. At the same time, the portable spray gun 22 is easy to disassemble and convenient to clean.

[0108] In some embodiments, see Figure 1 and Figure 2 The induction charging atomizer 100 includes a moving module 30, which includes a shell 31, a drive motor 37, a power supply assembly 32, and a moving part 33. The charging module 10, the atomization module 20, the drive motor 37, and the power supply assembly 32 are all arranged in the shell 31, and the shell 31 is arranged on the moving part 33. The drive motor 37 drives the moving part 33 to move, thereby driving the induction charging atomizer 100 to move.

[0109] The mobile module 30 is a functional unit in the inductively charged atomizer 100 that enables the device to move autonomously. By integrating driving, power and bearing components, the device is provided with flexible movement capabilities.

[0110] The housing 31 is the main supporting structure of the mobile module 30 and is used to accommodate internal components such as the charging module 10 and the atomization module 20 while providing a protective function.

[0111] The driving motor 37 is a component that provides power to the moving module 30 , for example, by converting electrical energy into mechanical energy to drive the moving part 33 to move.

[0112] The power supply assembly 32 is a device that supplies power to the drive motor 37 and other electronic components, and generally includes a battery, a power management circuit, etc.

[0113] For example, the mobile module 30 uses a DC battery as its power source, which is converted by an inverter module to an AC motor as torque output. It employs a closed-loop control algorithm with a dual-electrode independent control scheme and multi-mode control methods, including remote control, speed loop control, and displacement loop control. The mobile module 30 can climb an 8cm step when fully loaded.

[0114] The moving part 33 is an executive component that contacts the ground or working surface, such as wheels, tracks, etc., and the equipment moves under the drive of the drive motor 37.

[0115] The housing 31 serves as an integrated carrier, housing the charging module 10, atomization module 20, drive motor 37, and power supply assembly 32. A movable member 33 (such as a wheel) is secured to the bottom of the housing 31. The drive motor 37 drives the movable member 33 through a transmission mechanism to rotate or move it. The power supply assembly 32 supplies power to the drive motor 37 and other modules, enabling the device to operate within a certain range without requiring external cables.

[0116] In some embodiments, a power-assisting handle 34 is provided on the housing 31 to assist the operator in pushing the mobile module 30 .

[0117] In some embodiments, a storage frame 36 is installed on the housing 31 to store the required curing agent.

[0118] In some embodiments, a receiving member 35 is provided inside the housing 31 for receiving the pipeline of the atomization module 20 .

[0119] In some embodiments, the mobile module 30 may be integrated with wireless remote control or automatic driving functions, allowing operators to remotely control the equipment in a safe area to reduce radiation exposure time.

[0120] The introduction of the mobile module 30 upgrades the inductive charging atomizer 100 from "fixed-point operation" to "dynamic control." By integrating mobility and functionality, it not only overcomes the application bottlenecks of traditional equipment in complex terrain and high-radiation environments, but also reduces operator risk through intelligent mobile control. In the nuclear safety field, this design combines the timeliness of emergency response with the flexibility of routine protection, providing mobile, unmanned technical support for the efficient management of radioactive contamination.

[0121] According to the Coulomb interaction force formula:

[0122]

[0123] where Q p and Q d are the charges on aerosol particles and droplets, R p and R d are the radii of the particle and droplet, respectively, r is the distance between the particle and droplet centers, and ε0 is the dielectric constant of free space.

[0124] The inductive charging atomizer 100 provided in the embodiment of the present application can atomize a fixative with a viscosity of 500 cp (centipoise) into droplets with a particle size in the micron order to form an aerosol, and complete atomization within a sector-shaped area with a radius of 0.5 m. The atomization volume is greater than or equal to 2 L / min, the charge of the fixative droplets can reach 1.7 C / kg, and the droplet charging distance is less than 20 cm. This device can complete atomization within 0.5 m and complete droplet charging within a spatial sphere with a diameter of 20 cm. Through Coulomb adsorption, efficient suppression of aerosols is achieved. At the same time, this device realizes long-distance operation through a remote control device and a real-time monitoring system, which can effectively improve work efficiency and reduce the radiation dose of staff.

[0125] The inductively charged atomizer 100 provided in the embodiments of this application is applicable to workplaces where radioactive aerosols may be present (e.g., nuclear facility decommissioning sites, nuclear facility inspection and maintenance, and mining and smelting of radioactive element ores). It is of great significance in reducing the cost of internal and external radiation protection and improving the level of protection against inhalation internal radiation. Furthermore, the device can also be used in any location where small-size particles need to be controlled (e.g., thermal power plants and construction sites).

[0126] The operation process of the induction charging atomizer 100 provided in the embodiment of the present application is as follows:

[0127] Operate the control panel 40 to start the device;

[0128] Operate the control panel 40 to turn on the air compressor 24;

[0129] Insert the feeding tube into the pre-prepared fixative, and start the two high-pressure pumps 23 on the control panel 40 while ensuring that the pressure relief valve 212 of the storage tank 21 is open. When the feeding is completed, the high-pressure pumps 23 automatically stop.

[0130] After feeding is completed, the feeding pipe is retracted into the device, the pressure relief valve 212 of the storage tank 21 is closed, and the corresponding parameters are selected on the control panel 40. The device can automatically adjust the pressure of the storage tank 21, the air output of the portable spray gun 22, and the voltage and relative position of the charging ring 12. The device needs to remain stationary during the automatic adjustment period, and there will be a voice prompt when the automatic adjustment is completed.

[0131] The portable spray gun 22 can be held in hand or fixed at an angle, and the work can be started by pulling the trigger of the portable spray gun 22 .

[0132] For example, see Figure 4 The storage tank 21 is filled with a water-based fixative with a viscosity of 500 cp, which is atomized by the induction charging atomizer 100 to generate an aerosol. The atomized particle size is measured using an optical atomization particle size analyzer. The measurement results are shown in Table 1 below:

[0133] Table 1 is the atomized particle size distribution diagram and distribution table of water-based fixative (viscosity 500cp)

[0134]

[0135]

[0136] For example, the charged atomizer 100 of the present application is used to control the cerium oxide aerosol, and the ELPI aerosol detector is used to explore the suppression effect of charging on the cerium oxide aerosol. Figure 5 shown.

[0137] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. An induction charging atomizer, characterized in that: include: A charging module, comprising an electrostatic generator and a charging ring, wherein the electrostatic generator is electrically connected to the charging ring and is configured to generate an induced electric field in the charging ring; An atomization module, the atomization module comprising a storage tank and a portable spray gun, the portable spray gun being in communication with the storage tank and configured to atomize the liquid in the storage tank and generate an aerosol; The portable spray gun comprises a main body and an adjusting device connected to the main body. The main body is provided with a nozzle, which faces the charged ring and is used to spray the aerosol toward the induced electric field inside the charged ring. The aerosol generates induced charges in the process of passing through the induced electric field inside the charged ring. The charged ring is arranged on the regulating device, and the regulating device is used to drive the charged ring to approach or move away from the nozzle along a first direction, where the first direction is perpendicular to the radial direction of the charged ring.

2. The induction charging atomizer according to claim 1, characterized in that: The charging ring is formed by at least two connecting rings connected in sequence, the two connecting rings are elastic parts, and the connection positions of at least some of the connecting rings are adjustable to adjust the diameter of the charging ring.

3. The induction charging atomizer according to claim 1, characterized in that: The adjusting device includes a support, a connecting member and a driving unit. The support is connected to the main body. The connecting member and the driving unit are arranged on the support. The connecting member is connected to the charging ring. The driving unit drives the connecting member to move along the first direction.

4. The induction charging atomizer according to claim 3, characterized in that: The driving unit includes a driving member and a lead screw. The connecting member is sleeved on the lead screw. The driving member drives the lead screw to rotate, so as to drive the connecting member to move along the first direction.

5. The induction charging atomizer according to claim 3, characterized in that: The connecting piece is insulated and connected to the charged ring; and / or, The support is insulated and connected to the main body.

6. The induction charging atomizer according to any one of claims 1 to 5, characterized in that: The electrostatic generator may output a voltage in the range of 10 kV to 100 kV.

7. The induction charging atomizer according to any one of claims 1 to 5, characterized in that: The induction charging atomizer includes a control module, The control module is electrically connected to the charging module, and the control module is used to control the output voltage and / or output current of the charging module; and / or, The control module is electrically connected to the atomization module, and is used to control the atomization amount of the atomization module and / or the distance between the charged ring and the nozzle.

8. The induction charging atomizer according to any one of claims 1 to 5, characterized in that: The atomization module includes a high-pressure pump, which is connected to the storage tank and the portable spray gun respectively, and is used to pump the liquid to the spray head.

9. The induction charging atomizer according to claim 8, characterized in that: The atomization module includes multiple storage tanks, and the portable spray gun includes a mixer. One end of the mixer is connected to the portable spray gun, and the other end is connected to each storage tank. The liquid in each storage tank is mixed in the mixer and then flows into the portable spray gun.

10. The induction charging atomizer according to any one of claims 1 to 5, characterized in that: The inductively charged atomizer includes a moving module, which includes a shell, a drive motor, a power supply assembly, and a moving part. The charging module, the atomization module, the drive motor, and the power supply assembly are all arranged in the shell, and the shell is arranged on the moving part. The drive motor drives the moving part to move, thereby driving the inductively charged atomizer to move.

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