Ultrasonic atomization auxiliary laser cleaning system

Abstract

The invention discloses an ultrasonic atomization auxiliary laser cleaning system which comprises a driving device and a spray head assembly, and the driving device is in transmission connection with the spray head assembly and can adjust the spatial position of the spray head assembly. The spray head assembly comprises an atomizing spray head and a laser irradiation head, and the laser is arranged on the driving device and used for emitting laser towards the laser irradiation head; a gas channel and a water mist channel are defined by the liquid supply assembly, the gas supply assembly and the atomization nozzle, the gas supply assembly communicates with the gas channel and the water mist channel, and the liquid supply assembly communicates with the water mist channel; and the resonator is arranged on the atomizing nozzle and can enable the gas and the liquid flowing into the water mist channel to form water mist. Therefore, by combining the atomizing nozzle, the laser irradiation head and the resonator, the shape of the ultrasonic atomized water mist can be controlled by the resonator while the nuclear wastewater tank is cleaned by laser, so that the atomized water mist efficiently absorbs toxic and harmful aerosol generated by laser cleaning, and the risk of radioactive exposure is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of metal surface treatment, in particular to an ultrasonic atomization-assisted laser cleaning system. Background Art

[0002] Nuclear wastewater tanks are specialized containers used to store low-level radioactive wastewater generated by nuclear power plants and other nuclear facilities. Due to its radioactive contamination, the cleaning and reuse of wastewater tanks must adhere to strict technical and safety regulations to ensure environmental and human health safety.

[0003] In related technologies, mechanical cleaning, chemical cleaning, and thermal cleaning are mainly used for nuclear waste water tanks. However, mechanical cleaning is usually labor-intensive and can easily damage precision components. Chemical cleaning is suitable for cleaning large areas, but it can easily cause contamination. Thermal cleaning is also not suitable for cleaning heat-sensitive or high-precision components. Currently, laser cleaning is gradually becoming a new means of dealing with radioactive contamination, corrosion, and sediment in nuclear waste water tanks. However, the technology of laser cleaning is not yet fully mature, and current solutions generally have the problem of poor removal effect. In addition, the toxic and harmful aerosols generated by laser cleaning will remain in the nuclear waste water tank, increasing the risk of radioactive exposure. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an ultrasonic atomization-assisted laser cleaning system that is clean and environmentally friendly and can reduce the risk of radioactive exposure.

[0005] According to the present invention, the ultrasonic atomization-assisted laser cleaning system includes: a driving device and a nozzle assembly, the driving device is transmission-connected to the nozzle assembly and can adjust the spatial position of the nozzle assembly; a laser, the nozzle assembly includes: an atomizing nozzle and a laser irradiation head, the laser is arranged on the driving device and is used to emit laser toward the laser irradiation head; a liquid supply assembly, an air supply assembly, the atomizing nozzle defines a gas channel and a water mist channel, the air supply assembly is connected to the gas channel and the water mist channel, and the liquid supply assembly is connected to the water mist channel; a resonator, the resonator is arranged on the atomizing nozzle and can form the gas and liquid flowing into the water mist channel into water mist.

[0006] According to the ultrasonic atomization-assisted laser cleaning system of the present invention, by combining an atomizing nozzle, a laser irradiation head and a resonator, it is possible to use the resonator to control the shape of the ultrasonic atomized water mist while cleaning the nuclear waste water tank with a laser, so that the atomized water mist can efficiently absorb the toxic and harmful aerosols generated by laser cleaning, effectively reducing the risk of radioactive exposure.

[0007] In some examples of the present invention, the atomizing nozzle includes: a first body, the first body defining the gas channel and the water mist channel, the gas channel including: an air inlet channel, a first connecting channel, an air outlet channel, and a second connecting channel, the water mist channel including: a liquid inlet channel, a liquid channel, and a mixing channel;

[0008] The air inlet channel is connected to the air supply component, the air inlet channel is connected to both the first connecting channel and the second connecting channel, the air outlet channel is connected to the first connecting channel, the liquid inlet channel is connected to the liquid supply component, the liquid inlet channel is connected to the liquid channel, the liquid channel and the second connecting channel are both connected to the mixing channel, the resonator defines a water mist outlet, and the mixing channel is connected to the water mist outlet.

[0009] In some examples of the present invention, the first body further defines a water mist chamber, the water mist chamber is connected between the mixing channel and the water mist outlet, and at least a portion of the structure of the resonator is disposed in the water mist chamber.

[0010] In some examples of the present invention, there are multiple first communication channels and multiple gas outlet channels in a one-to-one correspondence, and the multiple gas outlet channels surround the resonator.

[0011] In some examples of the present invention, the atomizing nozzles and the resonators are both multiple and correspond one to one, and the multiple atomizing nozzles surround the laser irradiation head.

[0012] In some examples of the present invention, each of the atomizing nozzles has the air outlet channel relatively close to the laser irradiation head, wherein the axis of the air outlet channel relatively close to the laser irradiation head of at least one of the atomizing nozzles is parallel to the axis of the laser irradiation head.

[0013] In some examples of the present invention, the laser irradiation head includes: a second body and a plurality of lenses, the second body defines a laser channel, and the plurality of lenses are disposed in the laser channel and are spaced apart along the axial direction of the laser channel.

[0014] In some examples of the present invention, the laser irradiation head further includes: a focusing glass, the focusing glass is located outside the laser channel and connected to the second body, the focusing glass defines a focusing channel, and the focusing channel is connected to the laser channel.

[0015] In some examples of the present invention, the ultrasonic atomization-assisted laser cleaning system further includes: a host computer; the liquid supply assembly includes: a first driving pump, a liquid supply pipe, and a hydraulic sensor, the liquid supply pipe is suitable for connecting to a liquid source, the liquid supply pipe is in communication with the water mist channel, and the hydraulic sensor and the first driving pump are both provided on the liquid supply pipe;

[0016] The air supply assembly includes: a second driving pump, an air supply pipe, and a first air pressure sensor, wherein the air supply pipe is connected to the gas channel and the water mist channel, and the first air pressure sensor and the second driving pump are both provided on the air supply pipe;

[0017] The hydraulic pressure sensor and the first air pressure sensor are both connected to the host computer.

[0018] In some examples of the present invention, the ultrasonic atomization-assisted laser cleaning system also includes: a recovery component, the recovery component includes: a filter, a recovery pipeline, a recovery container, a third drive pump, and a second air pressure sensor. The recovery pipeline is connected to the recovery container, and the filter, the third drive pump, and the second air pressure sensor are all arranged in the recovery pipeline. The recovery pipeline is used to recover the water mist sprayed from the atomizing nozzle to the recovery container, and the second air pressure sensor is connected to the host computer.

[0019] In some examples of the present invention, the driving device is configured as a manipulator;

[0020] Alternatively, the driving device includes: a first driving shaft, a first driving member, a second driving shaft, and a second driving member, the first driving member is connected to the first driving shaft and is used to drive the first driving shaft to rotate, the second driving shaft is arranged on the first driving shaft, the second driving member is connected to the second driving shaft and is used to drive the second driving shaft to rotate, the rotation axis of the first driving shaft is perpendicular to the rotation axis of the second driving shaft, and the nozzle assembly and the laser are both arranged on the second driving shaft.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0023] Figure 1 2. It is an architectural diagram of an ultrasonic atomization-assisted laser cleaning system according to an embodiment of the present invention;

[0024] Figure 2 is a cross-sectional view of a nozzle assembly according to an embodiment of the present invention;

[0025] Figure 3 2 is a perspective view of an atomizing nozzle according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] Ultrasonic atomization-assisted laser cleaning system 100; nuclear waste water tank 99; drive device 98; laser beam 97;

[0028] Nozzle assembly 1; atomizing nozzle 10; first body 11; gas channel 111; air inlet channel 112; first communication channel 113; air outlet channel 114; second communication channel 115; water mist channel 116; liquid inlet channel 117; liquid channel 118; mixing channel 119; water mist chamber 120;

[0029] Laser irradiation head 2; second body 20; laser channel 21; focusing glass 22; focusing channel 221; lens 23; first beam expander lens 231; collimating focusing lens 232; first focusing lens 233; second focusing lens 234; second beam expander lens 235;

[0030] Laser 3; resonator 4; water mist outlet 41; host computer 5;

[0031] Liquid supply assembly 60; first drive pump 61; liquid supply pipe 62; hydraulic pressure sensor 63; liquid source 64; hydraulic pressure meter 65;

[0032] Air supply assembly 70; second drive pump 71; air supply pipe 72; first air pressure sensor 73; air source 74; first air pressure gauge 75;

[0033] Recovery component 80; filter 81; recovery pipeline 82; recovery container 83; third drive pump 84; second air pressure sensor 85; second air pressure gauge 86; light scattering sensor 87; scintillation detector 88. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] Reference below Figure 1-Figure 3 An ultrasonic atomization-assisted laser cleaning system 100 according to an embodiment of the present invention is described.

[0036] like Figure 1-Figure 3 As shown, the ultrasonic atomization-assisted laser cleaning system 100 according to an embodiment of the present invention includes: a driving device 98, a nozzle assembly 1, a laser 3, a liquid supply assembly 60, an air supply assembly 70 and a resonator 4.

[0037] The driving device 98 is in transmission connection with the nozzle assembly 1 and can adjust the spatial position of the nozzle assembly 1; the nozzle assembly 1 includes: an atomizing nozzle 10 and a laser irradiation head 2, the laser 3 is arranged on the driving device 98 and is used to emit laser toward the laser irradiation head 2; the atomizing nozzle 10 defines a gas channel 111 and a water mist channel 116, the gas supply assembly 70 is connected to the gas channel 111 and the water mist channel 116, and the liquid supply assembly 60 is connected to the water mist channel 116; the resonator 4 is arranged on the atomizing nozzle 10 and can form the gas and liquid flowing into the water mist channel 116 into water mist.

[0038] The ultrasonic atomization-assisted laser cleaning system 100 of the present application can be used for, but is not limited to, cleaning of nuclear waste water tanks 99. The present application uses the ultrasonic atomization-assisted laser cleaning system 100 for cleaning of nuclear waste water tanks 99 as an example for illustration, and will not be further elaborated below.

[0039] The transmission connection method between the drive device 98 and the nozzle assembly 1 can be but is not limited to a direct-connection transmission by a robot, a flexible screw transmission connection, etc. As some embodiments of the present application, the drive device 98 and the nozzle assembly 1 are connected through a direct-connection transmission by a robot.

[0040] The driving device 98 can adjust the spatial position of the nozzle assembly 1. As some embodiments of the present application, the driving device 98 is connected to the nozzle assembly 1 through a direct transmission of a manipulator. The driving device 98 can adjust the spatial position of the nozzle assembly 1 in any direction so that the nozzle assembly 1 can be cleaned in any direction in the nuclear waste water tank 99.

[0041] The nozzle assembly 1 includes an atomizing nozzle 10 and a laser irradiation head 2. The laser 3 is provided on a drive device 98. The laser 3 and the drive device 98 are connected. The connection method of the laser 3 and the drive device 98 can be, but is not limited to, a clamping connection, a bolt connection, etc. As some embodiments of the present application, the laser 3 and the drive device 98 are connected by a bolt connection. The laser 3 is used to emit laser light toward the laser irradiation head 2. As some embodiments of the present application, the laser light emitted by the laser 3 is transmitted to the laser irradiation head 2 via an optical fiber.

[0042] The atomizing nozzle 10 defines a gas channel 111 and a water mist channel 116. The gas supply assembly 70 is in communication with both the gas channel 111 and the water mist channel 116. That is, the gas supply assembly 70 is in communication with the gas channel 111, and the gas supply assembly 70 is in communication with the water mist channel 116, and the liquid supply assembly 60 is in communication with the water mist channel 116. In some embodiments of the present application, the gas supply assembly 70 is in communication with the gas channel 111 via a pipeline, and the gas supply assembly 70 is in communication with the water mist channel 116 via a pipeline. In some embodiments of the present application, the gas supply assembly 70 is in communication with the gas channel 111 via a pipeline. In some embodiments of the present application, a portion of the gas channel 111 is in communication with the water mist channel 116, so that the gas supply assembly 70 is in indirect communication with the water mist channel 116.

[0043] The resonator 4 is provided on the atomizing nozzle 10. The connection between the resonator 4 and the atomizing nozzle 10 may be, but is not limited to, a clamping connection or a bolt connection. In some embodiments of the present application, the resonator 4 and the atomizing nozzle 10 are connected by bolts. The resonator 4 can form the gas and liquid flowing into the water mist channel 116 into water mist. It is understood that the resonator 4 can generate ultrasonic waves through the high-pressure airflow to break up the liquid jet to form water mist, so that the water mist absorbs the aerosol generated by laser cleaning.

[0044] It should be noted that laser cleaning utilizes a high-energy laser beam to interact with metal surfaces, effectively removing contaminants, rust, grease, and oxides. The ultrasonic atomization-assisted laser cleaning system 100 proposed in this application is capable of laser cleaning with high cleaning efficiency and is non-contact, avoiding the risk of radioactive material exposure to workers associated with traditional cleaning methods.

[0045] By setting up the driving device 98, the direction of the nozzle assembly 1 can be freely adjusted during the cleaning process, so that the ultrasonic atomization-assisted laser cleaning system 100 can clean some dead corners of the nuclear waste water tank 99, thereby improving the cleanliness of the ultrasonic atomization-assisted laser cleaning system 100. In addition, by combining the atomizing nozzle 10 and the laser irradiation head 2, the aerosol generated by the laser cleaning can be absorbed by the ultrasonically atomized water mist, which can reduce the pollution of the laser cleaning to the environment, reduce the risk of radioactive exposure, and effectively improve the environmental protection performance of the ultrasonic atomization-assisted laser cleaning system 100.

[0046] Therefore, by combining the atomizing nozzle 10, the laser irradiation head 2 and the resonator 4, it is possible to use the resonator 4 to control the shape of the ultrasonic atomized water mist while cleaning the nuclear waste water tank 99 with a laser, so that the atomized water mist can efficiently absorb the toxic and harmful aerosols generated by the laser cleaning, effectively reducing the risk of radioactive exposure.

[0047] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the atomizing nozzle 10 includes: a first body 11, the first body 11 defines a gas channel 111 and a water mist channel 116, the gas channel 111 includes: an air inlet channel 112, a first connecting channel 113, an air outlet channel 114, and a second connecting channel 115, and the water mist channel 116 includes: a liquid inlet channel 117, a liquid channel 118, and a mixing channel 119;

[0048] The air intake channel 112 is connected to the air supply component 70, the air intake channel 112 is connected to the first connecting channel 113 and the second connecting channel 115, the air outlet channel 114 is connected to the first connecting channel 113, the liquid inlet channel 117 is connected to the liquid supply component 60, the liquid inlet channel 117 is connected to the liquid channel 118, the liquid channel 118 and the second connecting channel 115 are both connected to the mixing channel 119, the resonator 4 defines a water mist outlet 41, and the mixing channel 119 is connected to the water mist outlet 41.

[0049] The air intake passage 112 is connected to the air supply assembly 70. In some embodiments of the present application, the air intake passage 112 and the air supply assembly 70 are connected via a pipeline. The air intake passage 112 is connected to both the first connecting passage 113 and the second connecting passage 115. In other words, the air intake passage 112 is connected to the first connecting passage 113 and the second connecting passage 115. The air outlet passage 114 is connected to the first connecting passage 113. In some embodiments of the present application, the air outlet passage 114 is directly connected to the first connecting passage 113.

[0050] Liquid inlet channel 117 is connected to liquid supply assembly 60. In some embodiments of the present application, liquid inlet channel 117 and liquid supply assembly 60 are connected via a pipeline. Liquid inlet channel 117 is connected to liquid channel 118. In some embodiments of the present application, liquid inlet channel 117 and liquid channel 118 are directly connected. Liquid channel 118 and second connecting channel 115 are both connected to mixing channel 119.

[0051] As some embodiments of the present application, the second connecting channel 115 has an end away from the mixing channel 119 and an end close to the mixing channel 119. Along the gas flow direction in the second connecting channel 115, the cross-sectional area of the end of the second connecting channel 115 close to the mixing channel 119 gradually decreases so that the gas can flow into the mixing channel 119 quickly and stably.

[0052] In some embodiments of the present application, gas can enter the first connecting channel 113 and the second connecting channel 115 from the gas supply component 70 through the air inlet channel 112. After entering the first connecting channel 113, the gas can flow out from the air outlet channel 114. After entering the second connecting channel 115, the gas can flow to the mixing channel 119. Liquid can flow from the liquid supply component 60 into the liquid inlet channel 117 and into the mixing channel 119 through the liquid channel 118. The gas and liquid can simultaneously flow through the mixing channel 119 to the resonator 4. Under the action of the high-pressure gas and the resonator 4, the liquid forms a stable water mist, which is then ejected from the atomizing nozzle 10 to absorb the aerosol generated by laser cleaning. Such an arrangement can make the structure of the atomizing nozzle 10 simple and reasonable, and can simultaneously supply air to the mixing channel 119 and the air outlet channel 114 through only one air inlet channel 112. In addition, the gas ejected from the air outlet channel 114 can protect the water mist, thereby facilitating the control of the water mist shape, accelerating the rate at which the water mist absorbs the aerosol, and improving the cleaning efficiency. Moreover, such a setting can make the structure of the atomizing nozzle 10 simple and reasonable, can realize the precise control of gas and liquid, and improve the atomization efficiency of the resonator 4, thereby helping to improve the cleaning efficiency and meet the working requirements of efficiently cleaning the nuclear waste water tank 99.

[0053] In some embodiments of the present invention, Figure 2 As shown, the first body 11 further defines a water mist chamber 120 , which communicates between the mixing channel 119 and the water mist outlet 41 , and at least a portion of the structure of the resonator 4 is disposed in the water mist chamber 120 .

[0054] In which, the first body 11 further defines a water mist chamber 120, which is connected between the mixing channel 119 and the water mist outlet 41. At least part of the structure of the resonator 4 is arranged in the water mist chamber 120, that is, part of the structure of the resonator 4 is arranged in the water mist chamber 120, or the entire structure of the resonator 4 is arranged in the water mist chamber 120.

[0055] By connecting the water mist chamber 120 between the mixing channel 119 and the water mist outlet 41, and at least part of the structure of the resonator 4 is arranged in the water mist chamber 120, the gas and liquid mixed in the mixing channel 119 can flow into the water mist chamber 120 and form water mist under the action of the resonator 4, and then be sprayed out through the water mist outlet 41 of the resonator 4. This can improve the atomization efficiency of the resonator 4, which is beneficial to improving the cleaning efficiency of the ultrasonic atomization-assisted laser cleaning system 100.

[0056] As some embodiments of this application, Figure 2 As shown, the direction from the mixing channel 119 to the water mist outlet 41 (ie Figure 2In the X direction shown in the figure), the cross-sectional area of the water mist chamber 120 gradually decreases. This arrangement can make the formed water mist more stable, so as to efficiently absorb the aerosol generated by laser cleaning, thereby reducing the pollution of the laser cleaning to the environment.

[0057] As some embodiments of this application, Figure 2 As shown, the cross-sectional area of the water mist chamber 120 is larger than the cross-sectional area of the mixing channel 119. This arrangement can make the volume of the water mist chamber 120 larger, so as to form a larger amount of water mist, so as to fully absorb the aerosol generated by laser cleaning and reduce the risk of radioactive exposure.

[0058] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, there are multiple first communication channels 113 and multiple gas outlet channels 114 in one-to-one correspondence, and the multiple gas outlet channels 114 surround the resonator 4 .

[0059] There are multiple first communication channels 113, which may be, but are not limited to, two or three. In some embodiments of the present application, there are two first communication channels 113. There are multiple outlet channels 114, which may be, but are not limited to, two or three. In some embodiments of the present application, there are two outlet channels 114. In some embodiments of the present application, the number of outlet channels 114 is the same as the number of first communication channels 113 and they are arranged in a one-to-one correspondence. In addition, the outlet channels 114 are arranged around the resonator 4.

[0060] By providing multiple first connecting channels 113 and air outlet channels 114 in one-to-one correspondence, and arranging multiple air outlet channels 114 around the resonator 4, the water mist generated by the resonator 4 can be effectively protected by the airflow through the air outlet channels 114, and the shape of the water mist can be reasonably controlled to facilitate the rapid absorption of aerosols by the water mist. In addition, the airflow can protect the laser and reduce the interference of the water mist on the laser, which is beneficial to improving the cleaning efficiency of the ultrasonic atomization-assisted laser cleaning system 100.

[0061] In some embodiments of the present invention, Figure 2 As shown, there are multiple atomizing nozzles 10 and resonators 4 in one-to-one correspondence, and the multiple atomizing nozzles 10 surround the laser irradiation head 2.

[0062] There are multiple atomizing nozzles 10, which can be, but not limited to, two or three. In some embodiments of the present application, the number of atomizing nozzles 10 is three. There are multiple resonators 4, which can be, but not limited to, two or three. In some embodiments of the present application, the number of resonators 4 is three. In some embodiments of the present application, there are three atomizing nozzles 10, and the number of resonators 4 is the same as the number of atomizing nozzles 10 and is arranged in a one-to-one correspondence.

[0063] A plurality of atomizing nozzles 10 surround the laser irradiation head 2 . In some embodiments of the present application, the number of the atomizing nozzles 10 is three, and the three atomizing nozzles 10 are arranged around the laser irradiation head 2 with the laser irradiation head 2 as the center.

[0064] By providing multiple atomizing nozzles 10 and resonators 4 in one-to-one correspondence, and surrounding the laser irradiation head 2 with multiple atomizing nozzles 10, the atomizing nozzles 10 can spray water mist from multiple directions, which can further accelerate the rate at which the water mist absorbs the aerosol and improve the cleaning efficiency. In addition, such an arrangement can also protect the laser from multiple angles and effectively reduce the interference of the water mist on the laser.

[0065] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, each atomizing nozzle 10 has an air outlet channel 114 relatively close to the laser irradiation head 2 , wherein the axis of the air outlet channel 114 relatively close to the laser irradiation head 2 of at least one atomizing nozzle 10 is parallel to the axis of the laser irradiation head 2 .

[0066] That is to say, the atomizing nozzle 10 has multiple air outlet channels 114, and multiple atomizing nozzles 10 are arranged around the laser irradiation head 2, and each atomizing nozzle 10 has an air outlet channel 114 relatively close to the laser irradiation head 2 and an air outlet channel 114 relatively far away from the laser irradiation head 2.

[0067] The axis of the gas outlet channel 114 of at least one atomizing nozzle 10 relatively close to the laser irradiation head 2 is parallel to the axis of the laser irradiation head 2. For example, the axis of the gas outlet channel 114 of one atomizing nozzle 10 relatively close to the laser irradiation head 2 is parallel to the axis of the laser irradiation head 2, or the axes of the gas outlet channels 114 of multiple atomizing nozzles 10 relatively close to the laser irradiation head 2 are parallel to the axis of the laser irradiation head 2. In some embodiments of the present application, three atomizing nozzles 10 are arranged around the laser irradiation head 2, and the axes of the gas outlet channels 114 of the three atomizing nozzles 10 relatively close to the laser irradiation head 2 are all parallel to the axis of the laser irradiation head 2.

[0068] By making the axis of the air outlet channel 114 of at least one atomizing nozzle 10 relatively close to the laser irradiation head 2 parallel to the axis of the laser irradiation head 2, the atomizing nozzle 10 can reasonably control the direction of the airflow, thereby facilitating the control of the shape of the water mist, accelerating the rate at which the water mist absorbs the aerosol, and improving the cleaning efficiency. In addition, such a setting can also protect the laser and reduce the interference of the water mist on the laser.

[0069] As some embodiments of the present application, each atomizing nozzle 10 has an air outlet channel 114 relatively far away from the laser irradiation head 2, wherein the axis of the air outlet channel 114 of at least one atomizing nozzle 10 relatively far away from the laser irradiation head 2 has an angle α with the axis of the laser irradiation head 2, satisfying the relationship: 30 degrees ≤ α ≤ 40 degrees.

[0070] That is to say, the axis of the air outlet channel 114 of an atomizing nozzle 10 that is relatively far away from the laser irradiation head 2 has an angle α with the axis of the laser irradiation head 2, or the axes of the air outlet channels 114 of multiple atomizing nozzles 10 that are relatively far away from the laser irradiation head 2 have an angle α with the axis of the laser irradiation head 2, and α satisfies the relationship: 30 degrees ≤ α ≤ 40 degrees. In other words, the angle α between the axis of the air outlet channel 114 of at least one atomizing nozzle 10 that is relatively far away from the laser irradiation head 2 and the axis of the laser irradiation head 2 can be any value between 30 degrees and 40 degrees. For example, the angle between the axis of the air outlet channel 114 of at least one atomizing nozzle 10 that is relatively far away from the laser irradiation head 2 and the axis of the laser irradiation head 2 can be but not limited to 30 degrees, 35 degrees, 40 degrees, etc. As some embodiments of the present application, three atomizing nozzles 10 are arranged around the laser irradiation head 2, and the angle between the axis of the air outlet channel 114 of the three atomizing nozzles 10 relatively away from the laser irradiation head 2 and the axis of the laser irradiation head 2 is 35 degrees.

[0071] Such an arrangement enables the atomizing nozzle 10 to reasonably control the direction of the airflow, thereby facilitating the control of the shape of the water mist, accelerating the rate at which the water mist absorbs the aerosol, and improving the cleaning efficiency.

[0072] In some embodiments of the present invention, Figure 2 As shown, the laser irradiation head 2 includes: a second body 20 and a plurality of lenses 23 . The second body 20 defines a laser channel 21 . The plurality of lenses 23 are all disposed in the laser channel 21 and are spaced apart along the axial direction of the laser channel 21 .

[0073] The second body 20 defines a laser channel 21. The number of lenses 23 may be multiple, and the number of lenses 23 may be, but is not limited to, three or four. In some embodiments of the present application, the number of lenses 23 is four, and the four lenses 23 are all disposed in the laser channel 21 and spaced apart along the axial direction of the laser channel 21. The laser beam 97 can enter the laser channel 21 from one end thereof and sequentially pass through the multiple lenses 23 along the axial direction of the laser channel 21 before being emitted.

[0074] In some embodiments of the present application, the plurality of lenses 23 include: a first beam expanding lens 231, a collimating and focusing lens 232, a first focusing lens 233, and a second focusing lens 234. The first beam expanding lens 231, the collimating and focusing lens 232, the first focusing lens 233, and the second focusing lens 234 are all disposed in the laser channel 21. Furthermore, along the direction of travel of the laser beam 97, the first beam expanding lens 231, the collimating and focusing lens 232, the first focusing lens 233, and the second focusing lens 234 are sequentially spaced apart in the laser channel 21. The laser beam 97 can sequentially pass through the first beam expanding lens 231, the collimating and focusing lens 232, the first focusing lens 233, and the second focusing lens 234 from the laser channel 21 and be emitted.

[0075] By arranging the multiple lenses 23 in the laser channel 21 and arranging them at intervals along the axial direction of the laser channel 21 , the energy of the laser can be controlled with high precision, the risk of laser energy loss can be reduced, and the laser cleaning effect can be ensured.

[0076] In some embodiments of the present invention, Figure 2 As shown, the laser irradiation head 2 further includes: a focusing glass 22 , which is located outside the laser channel 21 and connected to the second body 20 , and defines a focusing channel 221 , which is connected to the laser channel 21 .

[0077] The focusing glass 22 is located outside the laser channel 21 and downstream of the laser channel 21 along the direction of travel of the laser beam 97. The focusing glass 22 is connected to the second body 20. The connection between the focusing glass 22 and the second body 20 may be, but is not limited to, a snap connection, a bolt connection, an adhesive connection, etc. In some embodiments of the present application, the focusing glass 22 and the second body 20 are connected by adhesive. The focusing glass 22 defines a focusing channel 221, which is connected to the laser channel 21. The laser beam 97 can enter the focusing channel 221 after being emitted from the laser channel 21.

[0078] As some embodiments of the present application, multiple lenses 23 include: a first beam expanding lens 231, a collimating focusing lens 232, a first focusing lens 233, and a second focusing lens 234, and the laser irradiation head 2 also includes: a second beam expanding lens 235, wherein the first beam expanding lens 231, the collimating focusing lens 232, the first focusing lens 233, and the second focusing lens 234 are all arranged in the laser channel 21, and along the axial direction of the laser channel 21, from the end of the laser channel 21 away from the focusing glass 22 to the end close to the focusing glass 22, the first beam expanding lens 231, the collimating focusing lens 232, the first focusing lens 233, and the second focusing lens 234 are arranged in the laser channel 21 in sequence. The second beam expander lens 235 is disposed on the focusing glass 22. The laser beam 97 can sequentially pass through the first beam expander lens 231, the collimating focusing lens 232, the first focusing lens 233, and the second focusing lens 234 from the laser channel 21, and then be emitted from the second beam expander lens 235 through the focusing channel 221, thereby converting the laser beam 97 into a uniform parallel beam. This configuration can improve the energy utilization rate of the laser, reduce laser loss, and accurately match the laser energy to the contaminant removal threshold, thereby ensuring the laser cleaning effect and improving the reliability of the ultrasonic atomization-assisted laser cleaning system 100.

[0079] By positioning the focusing glass 22 outside the laser channel 21 and connecting it to the second body 20 , the laser beam 97 can be protected, the risk of laser energy loss can be reduced, and the laser cleaning effect can be ensured.

[0080] In some embodiments of the present invention, Figure 1 As shown, the ultrasonic atomization-assisted laser cleaning system 100 further includes: a host computer 5; a liquid supply component 60 including: a first driving pump 61, a liquid supply pipe 62, and a hydraulic sensor 63, wherein the liquid supply pipe 62 is adapted to be connected to a liquid source 64, the liquid supply pipe 62 is in communication with the water mist channel 116, and the hydraulic sensor 63 and the first driving pump 61 are both provided on the liquid supply pipe 62;

[0081] The air supply component 70 includes: a second drive pump 71, an air supply pipe 72, and a first air pressure sensor 73. The air supply pipe 72 is connected to the gas channel 111 and the water mist channel 116. The first air pressure sensor 73 and the second drive pump 71 are both arranged on the air supply pipe 72; the hydraulic sensor 63 and the first air pressure sensor 73 are both connected to the host computer 5.

[0082] That is, the liquid supply assembly 60 includes: a first drive pump 61, a liquid supply pipe 62, and a hydraulic pressure sensor 63. One end of the liquid supply pipe 62 is connected to the liquid source 64, and the other end of the liquid supply pipe 62 is connected to the water mist channel 116. The hydraulic pressure sensor 63 and the first drive pump 61 are both arranged in the liquid supply pipe 62. In some embodiments of the present application, the first drive pump 61 and the hydraulic pressure sensor 63 are arranged in the liquid supply pipe 62 in the direction from the liquid source 64 to the water mist channel 116. In some embodiments of the present application, the liquid supply pipe 62 is also provided with a hydraulic pressure gauge 65 to facilitate observation and recording of the pressure in the liquid supply pipe 62.

[0083] The air supply assembly 70 includes: a second drive pump 71, an air supply pipe 72, and a first air pressure sensor 73. The air supply pipe 72 is connected to the gas channel 111 and the water mist channel 116. As some embodiments of the present application, the air supply pipe 72 is first connected to the laser channel 21, the laser channel 21 is connected to the gas channel 111, and the gas channel 111 is connected to the water mist channel 116, so that the air supply pipe 72 is connected to the gas channel 111 and the water mist channel 116.

[0084] In some embodiments of the present application, one end of the air supply pipe 72 is connected to the air source 74, and the other end of the air supply pipe 72 is connected to the gas channel 111. The first air pressure sensor 73 and the second drive pump 71 are both provided on the air supply pipe 72. In some embodiments of the present application, from the air source 74 to the gas channel 111, the second drive pump 71 and the first air pressure sensor 73 are provided in sequence on the air supply pipe 72. In some embodiments of the present application, a first air pressure gauge 75 is also provided on the air supply pipe 72 to facilitate observation and recording of the pressure in the air supply pipe 72.

[0085] The hydraulic sensor 63 and the first air pressure sensor 73 are both connected to the host computer 5. The connection between the hydraulic sensor 63 and the first air pressure sensor 73 and the host computer 5 can be, but is not limited to, a wired connection, a wireless connection, etc. In some embodiments of the present application, the host computer 5 is constructed as a PLC (Programmable Logic Controller), and the hydraulic sensor 63 and the first air pressure sensor 73 are both connected to the host computer 5 via wires. In some embodiments of the present application, the hydraulic sensor 63 and the first air pressure sensor 73 are both wirelessly connected to the host computer 5.

[0086] Such a setting can make the ultrasonic atomization-assisted laser cleaning system 100 reasonably set up, can reliably supply gas and liquid, and can accurately monitor the gas and liquid of the ultrasonic atomization-assisted laser cleaning system 100, which is beneficial to improving the reliability of the use of the ultrasonic atomization-assisted laser cleaning system 100.

[0087] In some embodiments of the present invention, Figure 1As shown, the ultrasonic atomization-assisted laser cleaning system 100 also includes: a recovery component 80, the recovery component 80 includes: a filter 81, a recovery pipe 82, a recovery container 83, a third drive pump 84, and a second air pressure sensor 85. The recovery pipe 82 is connected to the recovery container 83. The filter 81, the third drive pump 84, and the second air pressure sensor 85 are all arranged in the recovery pipe 82. The recovery pipe 82 is used to recover the water mist sprayed from the atomizing nozzle 10 to the recovery container 83. The second air pressure sensor 85 is connected to the host computer 5.

[0088] That is, the recovery assembly 80 includes: a filter 81, a recovery line 82, a recovery container 83, a third drive pump 84, and a second air pressure sensor 85. One end of the recovery line 82 is connected to the recovery container 83, and the other end of the recovery line 82 is connected to the nuclear waste water tank 99. The filter 81, the third drive pump 84, and the second air pressure sensor 85 are all arranged in the recovery line 82. In some embodiments of the present application, the third drive pump 84, the second air pressure sensor 85, and the filter 81 are arranged in the recovery line 82 in the direction from the recovery container 83 to the nuclear waste water tank 99. In some embodiments of the present application, a second air pressure gauge 86 is also provided on the recovery line 82 to facilitate observation and recording of the pressure in the recovery line 82.

[0089] The recovery pipeline 82 can recover the water mist sprayed by the atomizing nozzle 10 to the recovery container 83. Specifically, the water mist sprayed by the atomizing nozzle 10 can absorb the aerosol generated by laser cleaning. Under the action of the third driving pump 84, the water mist combined with the aerosol will enter the recovery container 83 along the recovery pipeline 82.

[0090] The second air pressure sensor 85 is connected to the host computer 5. The connection between the second air pressure sensor 85 and the host computer 5 can be, but is not limited to, a wired connection, a wireless connection, etc. In some embodiments of the present application, the host computer 5 is constructed as a PLC (Programmable Logic Controller), and the second air pressure sensor 85 is connected to the host computer 5 via a wire. In some embodiments of the present application, the second air pressure sensor 85 is connected to the host computer 5 wirelessly.

[0091] As some embodiments of the present application, the ultrasonic atomization-assisted laser cleaning system 100 also includes a light scattering sensor 87 and a scintillation detector 88. The light scattering sensor 87 and the scintillation detector 88 are both arranged on the driving device 98 and are both electrically connected to the host computer 5. The light scattering sensor 87 and the scintillation detector 88 can be used to detect the radioactivity level on the inner surface of the nuclear waste water tank 99 and the water mist concentration in the air in real time, and the negative pressure of the recovery component 80 can be adjusted according to the detection data so that the water mist can fully absorb the aerosol generated by cleaning.

[0092] By making the ultrasonic atomization-assisted laser cleaning system 100 also include a recovery component 80, the aerosol generated by the ultrasonic atomization-assisted laser cleaning system 100 can be recovered, which can reduce the pollution of laser cleaning to the environment, reduce the risk of radioactive exposure, and help improve the reliability of the use of the ultrasonic atomization-assisted laser cleaning system 100.

[0093] As some embodiments of the present application, when the ultrasonic atomization-assisted laser cleaning system 100 performs laser cleaning on the nuclear waste barrel 99, the position of the nozzle assembly 1 is first adjusted by the driving device 98, and then the laser parameters of the ultrasonic atomization-assisted laser cleaning system 100, the pressure of the liquid supply assembly 60, the pressure of the gas supply assembly 70, and the negative pressure of the recovery assembly 80 are set. Then, the laser 3 emits a laser and transmits it along the optical fiber to the laser channel. The laser is then converted into a laser beam 97. The laser beam 97 can pass through the first beam expanding lens 231, the collimating focusing lens 232, the first focusing lens 233, and the second focusing lens 234 from the laser channel 21 in sequence, and is emitted through the second beam expanding lens 235 to convert the laser beam 97 into a uniform parallel beam, and then form a light spot on the laser irradiation head 2 to clean the irradiated area.

[0094] At the same time, the second drive pump 71 is controlled to operate to introduce gas from the gas channel 111 into the atomizing nozzle 10. Then, the first drive pump 61 is controlled to operate to introduce liquid from the liquid inlet channel 117 into the atomizing nozzle 10. The gas and liquid can simultaneously pass through the mixing channel 119 and the water mist chamber 120 to the resonator 4. Under the action of the higher-pressure gas and the resonator 4, the liquid forms a stable water mist, which is then ejected from the atomizing nozzle 10 to absorb the aerosol generated by laser cleaning.

[0095] In some embodiments of the present invention, Figure 1 As shown, the driving device 98 is constructed as a manipulator; or, the driving device 98 includes: a first driving shaft, a first driving member, a second driving shaft, and a second driving member, the first driving member is connected to the first driving shaft and is used to drive the first driving shaft to rotate, the second driving shaft is arranged on the first driving shaft, the second driving member is connected to the second driving shaft and is used to drive the second driving shaft to rotate, the rotation axis of the first driving shaft is perpendicular to the rotation axis of the second driving shaft, and the nozzle assembly 1 and the laser 3 are both arranged on the second driving shaft.

[0096] Among them, the way in which the first drive member is connected to the first drive shaft may be but is not limited to a spline connection, a gear pair connection, etc., and the way in which the second drive member is connected to the second drive shaft may be but is not limited to a spline connection, a gear pair connection, etc. As some embodiments of the present application, the first drive member is connected to the first drive shaft through a spline, and the second drive member is connected to the second drive shaft through a spline.

[0097] The second drive shaft is provided on the first drive shaft, that is, the first drive shaft can drive the second drive shaft when it rotates. In some embodiments of the present application, the second drive member is fixedly provided on the first drive shaft and can drive the second drive shaft to rotate.

[0098] The rotation axis of the first drive shaft is perpendicular to the rotation axis of the second drive shaft. It can be understood that the first drive shaft and the second drive shaft can rotate in two mutually perpendicular directions under the action of the first drive member and the second drive member. This can enable the drive device 98 to have a larger adjustable space, which can increase the cleaning range of the ultrasonic atomization-assisted laser cleaning system 100, reduce the cleaning difficulty, and help improve the cleaning efficiency.

[0099] As some embodiments of the present application, the driving device 98 is constructed as a manipulator, and the driving device 98 can adjust the spatial position of the nozzle assembly 1. As some embodiments of the present application, the driving device 98 is connected to the nozzle assembly 1 through a manipulator transmission, and the driving device 98 can adjust the spatial position of the nozzle assembly 1 in any direction so that the nozzle assembly 1 can be cleaned in any direction in the nuclear waste water tank 99.

[0100] As some embodiments of the present application, the driving device 98 includes: a first driving shaft, a first driving member, a second driving shaft, and a second driving member. The first driving member is connected to the first driving shaft, and the first driving member can drive the first driving shaft to rotate. The second driving shaft is arranged on the first driving shaft. The second driving member is connected to the second driving shaft, and the second driving member can drive the second driving shaft to rotate. The rotation axis of the first driving shaft is perpendicular to the rotation axis of the second driving shaft. The nozzle assembly 1 and the laser 3 are both arranged on the second driving shaft, so that the nozzle assembly 1 and the laser 3 can be cleaned in any direction in the nuclear waste water tank 99.

[0101] As some embodiments of the present application, part of the structure of the driving device 98 is constructed as a Mecanum wheel. By making part of the structure of the driving device 98 as a Mecanum wheel, the nozzle assembly 1 can be smoothly moved axially and circumferentially along the inner wall of the nuclear waste water tank 99, which is beneficial to changing the direction of the nozzle assembly 1 in the nuclear waste water tank 99 and improving the convenience of cleaning of the ultrasonic atomization-assisted laser cleaning system 100.

[0102] Such a setting can provide the driving device 98 with a larger adjustable space, can increase the cleaning range of the ultrasonic atomization-assisted laser cleaning system 100, reduce the cleaning difficulty, and help improve the cleaning efficiency.

[0103] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0104] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0105] In the description of the present invention, "plurality" means two or more.

[0106] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0107] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0108] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0109] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An ultrasonic atomization-assisted laser cleaning system, characterized in that: include: A driving device and a nozzle assembly, wherein the driving device is in transmission connection with the nozzle assembly and is capable of adjusting the spatial position of the nozzle assembly; Laser, the nozzle assembly includes: an atomizing nozzle and a laser irradiation head, the laser is provided in the driving device and is used to emit laser light toward the laser irradiation head; A liquid supply component and an air supply component, wherein the atomizing nozzle defines an air channel and a water mist channel, the air supply component is in communication with both the air channel and the water mist channel, and the liquid supply component is in communication with the water mist channel; A resonator is provided on the atomizing nozzle and can form the gas and liquid flowing into the water mist channel into water mist.

2. The ultrasonic atomization-assisted laser cleaning system according to claim 1, characterized in that: The atomizing nozzle comprises: a first body, the first body defines the gas channel and the water mist channel, the gas channel comprises: an air inlet channel, a first connecting channel, an air outlet channel, and a second connecting channel, and the water mist channel comprises: a liquid inlet channel, a liquid channel, and a mixing channel; The air inlet channel is connected to the air supply component, the air inlet channel is connected to both the first connecting channel and the second connecting channel, the air outlet channel is connected to the first connecting channel, the liquid inlet channel is connected to the liquid supply component, the liquid inlet channel is connected to the liquid channel, the liquid channel and the second connecting channel are both connected to the mixing channel, the resonator defines a water mist outlet, and the mixing channel is connected to the water mist outlet.

3. The ultrasonic atomization-assisted laser cleaning system according to claim 2, characterized in that: The first body further defines a water mist chamber, which is connected between the mixing channel and the water mist outlet, and at least a part of the structure of the resonator is arranged in the water mist chamber.

4. The ultrasonic atomization-assisted laser cleaning system according to claim 2, characterized in that: There are multiple first communication channels and multiple gas outlet channels in a one-to-one correspondence, and the multiple gas outlet channels surround the resonator.

5. The ultrasonic atomization-assisted laser cleaning system according to claim 4, characterized in that: The atomizing nozzles and the resonators are both multiple and correspond to each other one by one, and the multiple atomizing nozzles surround the laser irradiation head.

6. The ultrasonic atomization-assisted laser cleaning system according to claim 5, characterized in that: Each of the atomizing nozzles has the gas outlet channel relatively close to the laser irradiation head, wherein the axis of the gas outlet channel relatively close to the laser irradiation head of at least one of the atomizing nozzles is parallel to the axis of the laser irradiation head.

7. The ultrasonic atomization-assisted laser cleaning system according to claim 1, characterized in that: The laser irradiation head includes: a second body and a plurality of lenses. The second body defines a laser channel. The plurality of lenses are all arranged in the laser channel and spaced apart along the axial direction of the laser channel.

8. The ultrasonic atomization-assisted laser cleaning system according to claim 7, characterized in that: The laser irradiation head further includes a focusing glass, which is located outside the laser channel and connected to the second body. The focusing glass defines a focusing channel, which is communicated with the laser channel.

9. The ultrasonic atomization-assisted laser cleaning system according to claim 1, characterized in that: Also includes: Host computer; The liquid supply assembly includes: a first driving pump, a liquid supply pipe, and a hydraulic pressure sensor, wherein the liquid supply pipe is suitable for connecting to a liquid source, the liquid supply pipe is in communication with the water mist channel, and the hydraulic pressure sensor and the first driving pump are both provided on the liquid supply pipe; The air supply assembly includes: a second driving pump, an air supply pipe, and a first air pressure sensor, wherein the air supply pipe is connected to the gas channel and the water mist channel, and the first air pressure sensor and the second driving pump are both provided on the air supply pipe; The hydraulic pressure sensor and the first air pressure sensor are both connected to the host computer.

10. The ultrasonic atomization-assisted laser cleaning system according to claim 9, characterized in that: Also includes: A recovery component includes: a filter, a recovery pipeline, a recovery container, a third drive pump, and a second air pressure sensor. The recovery pipeline is connected to the recovery container. The filter, the third drive pump, and the second air pressure sensor are all arranged in the recovery pipeline. The recovery pipeline is used to recover the water mist sprayed from the atomizing nozzle to the recovery container. The second air pressure sensor is connected to the host computer.

11. The ultrasonic atomization-assisted laser cleaning system according to any one of claims 1 to 10, characterized in that: The driving device is configured as a manipulator; Alternatively, the driving device includes: a first driving shaft, a first driving member, a second driving shaft, and a second driving member, the first driving member is connected to the first driving shaft and is used to drive the first driving shaft to rotate, the second driving shaft is arranged on the first driving shaft, the second driving member is connected to the second driving shaft and is used to drive the second driving shaft to rotate, the rotation axis of the first driving shaft is perpendicular to the rotation axis of the second driving shaft, and the nozzle assembly and the laser are both arranged on the second driving shaft.

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