CN114733846B - Ultrasonic cleaning device and method for outer surface of zirconium alloy pipe - Google Patents
Ultrasonic cleaning device and method for outer surface of zirconium alloy pipe Download PDFInfo
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- CN114733846B CN114733846B CN202210450487.8A CN202210450487A CN114733846B CN 114733846 B CN114733846 B CN 114733846B CN 202210450487 A CN202210450487 A CN 202210450487A CN 114733846 B CN114733846 B CN 114733846B
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- cleaning tank
- deionized water
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- 229910001093 Zr alloy Inorganic materials 0.000 title claims abstract description 84
- 238000004506 ultrasonic cleaning Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 174
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 131
- 239000012459 cleaning agent Substances 0.000 claims abstract description 108
- 238000011084 recovery Methods 0.000 claims abstract description 84
- 239000008367 deionised water Substances 0.000 claims abstract description 78
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 78
- 238000007664 blowing Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005498 polishing Methods 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 208000002991 Ring chromosome 4 syndrome Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to an ultrasonic cleaning device and method for the outer surface of a zirconium alloy pipe, wherein the device comprises: the cleaning device comprises a first cleaning tank, a second cleaning tank and a third cleaning tank, wherein cleaning agents are contained in the first cleaning tank; the second cleaning tank is internally filled with deionized water, and a second ultrasonic generator is arranged at the bottom of the second cleaning tank; the cleaning agent recovery tank is arranged between the first cleaning tank and the second cleaning tank and is used for recovering cleaning agent; the first water return system is arranged on the cleaning agent recovery tank, and when the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the first water return system conveys the cleaning agent in the cleaning agent recovery tank back to the first cleaning tank; after entering a first cleaning tank for ultrasonic cleaning, the zirconium alloy pipe is subjected to ultrasonic cleaning, and then the dripped cleaning agent is recovered through a cleaning agent recovery tank and enters a second cleaning tank for ultrasonic cleaning. Solves the technical problems that the residual bonding dirt on the surface of the zirconium alloy pipe cannot be effectively removed and the production efficiency is low in the prior art.
Description
Technical Field
The invention relates to the technical field of cleaning of the outer surface of a zirconium alloy pipe, in particular to an ultrasonic cleaning device and method for the outer surface of the zirconium alloy pipe.
Background
Nuclear grade zirconium alloy tubing is commonly used as a structural component of a fuel assembly and requires good corrosion resistance in a nuclear reactor, which relates to the safety performance of the fuel assembly in the nuclear reactor. The corrosion resistance of the zirconium alloy pipe has a great relation with the surface condition, and the finished zirconium alloy pipe needs to be subjected to abrasive belt polishing to remove an outer surface pollution layer. The zirconium alloy pipe is firstly washed on the inner surface, the two ends are plugged and sealed after air blowing, and then the abrasive belt polishing treatment is carried out, because the polishing abrasive belt polishing material consists of colloid containing sand grains and bonded sand grains, part of the polished abrasive belt polishing material remains on the surface of the pipe, the original online cleaning equipment cannot effectively remove the residual bonded dirt on the surface of the pipe, the polished pipe needs to manually wipe the outer surface of the pipe one by one before packaging, and the production efficiency is low.
Therefore, how to effectively remove residual bonding dirt on the surface of the zirconium alloy pipe and improve the production efficiency is a technical problem to be solved urgently at present.
Disclosure of Invention
The invention aims to provide an ultrasonic cleaning device and method for the outer surface of a zirconium alloy pipe, which can effectively remove residual adhesive dirt on the surface of the zirconium alloy pipe and improve the production efficiency.
According to a first aspect of the present invention, there is provided an ultrasonic cleaning device for an outer surface of a zirconium alloy pipe, comprising: the cleaning device comprises a first cleaning tank, a second cleaning tank and a third cleaning tank, wherein cleaning agents are contained in the first cleaning tank, a first ultrasonic generator is arranged at the bottom of the first cleaning tank, and the first ultrasonic generator is movably connected with the first cleaning tank; the second cleaning tank is internally filled with deionized water, and a second ultrasonic generator is arranged at the bottom of the second cleaning tank, wherein the second ultrasonic generator is movably connected with the second cleaning tank; the cleaning agent recovery tank is arranged between the first cleaning tank and the second cleaning tank and is used for recovering cleaning agent; the first water return system is arranged on the cleaning agent recovery tank, and when the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the first water return system conveys the cleaning agent in the cleaning agent recovery tank back to the first cleaning tank; after entering a first cleaning tank for ultrasonic cleaning, the zirconium alloy pipe is subjected to ultrasonic cleaning, and then enters a second cleaning tank for ultrasonic cleaning after the dripped cleaning agent is recovered through a cleaning agent recovery tank; and when the conductivity of the deionized water in the second cleaning tank is more than 20 mu s/cm, replacing the deionized water in the second cleaning tank.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the first cleaning tank is a rectangular tank, wherein a first inlet pipe opening and a first outlet pipe opening are respectively arranged on two opposite side surfaces of the first cleaning tank, and the first inlet pipe opening and the first outlet pipe opening are round holes and are concentrically arranged.
Further, the second cleaning tank is a rectangular tank, wherein a second inlet pipe orifice and a second outlet pipe orifice are respectively arranged on two opposite side surfaces of the second cleaning tank, and the second inlet pipe orifice and the second outlet pipe orifice are round holes and are concentrically arranged; the first pipe outlet and the second pipe inlet are concentrically arranged.
Further, the diameters of the first inlet pipe orifice, the first outlet pipe orifice, the second inlet pipe orifice and the second outlet pipe orifice are the same.
Further, brush sealing rings are arranged at the first inlet pipe orifice, the first outlet pipe orifice, the second inlet pipe orifice and the second outlet pipe orifice and used for reducing overflow.
Further, the first ultrasonic generator and the second ultrasonic generator are both arranged on the outer surface of the cleaning tank, wherein the vibration frequency of the first ultrasonic generator and the second ultrasonic generator is set to be 28 KHz-40 KHz.
Further, the method further comprises the following steps: the deionized water recovery tank is arranged outside the second pipe outlet and is used for recovering deionized water; the second water return system is arranged on the deionized water recovery tank, and when the deionized water in the deionized water recovery tank reaches a preset water level, the second water return system conveys the deionized water in the deionized water recovery tank back to the second cleaning tank.
Further, the method further comprises the following steps: a conveying system for controlling the zirconium alloy pipe to continuously move from the first cleaning tank to the second cleaning tank at a speed of not more than 8 m/min; wherein, in the moving process, the conveying system controls the zirconium alloy pipe to rotate at a constant speed by taking the central axis as a rotating shaft.
Further, the method further comprises the following steps: the first air blowing module is arranged above the cleaning agent recovery tank and is used for blowing off residues on the outer surface of the zirconium alloy pipe passing through the cleaning agent recovery tank; wherein the pressure of the high-pressure gas blown out by the first air blowing module is 0.5 MPa-0.7 MPa; the second air blowing module is arranged above the deionized water recovery tank and is used for blowing off residues on the outer surface of the zirconium alloy pipe passing through the deionized water recovery tank; wherein the pressure of the high-pressure gas blown out by the second air blowing module is 0.5-0.7 MPa.
According to a second aspect of the present invention, there is provided a method for ultrasonic cleaning of an outer surface of a zirconium alloy pipe, comprising the steps of: conveying the zirconium alloy pipe into a first cleaning tank for containing cleaning agent for first ultrasonic cleaning; conveying the zirconium alloy pipe subjected to the first ultrasonic cleaning to a second cleaning tank above a cleaning agent recovery tank; when the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the first water return system conveys the cleaning agent in the cleaning agent recovery tank back to the first cleaning tank; carrying out second ultrasonic cleaning on the zirconium alloy pipe conveyed into the second cleaning tank for containing deionized water; and when the conductivity of the deionized water in the second cleaning tank is more than 20 mu s/cm, replacing the deionized water in the second cleaning tank.
The invention provides a device and a method for ultrasonic cleaning of the outer surface of a zirconium alloy pipe, wherein the device comprises the following components: the cleaning device comprises a first cleaning tank, a second cleaning tank and a third cleaning tank, wherein cleaning agents are contained in the first cleaning tank, a first ultrasonic generator is arranged at the bottom of the first cleaning tank, and the first ultrasonic generator is movably connected with the first cleaning tank; the second cleaning tank is internally filled with deionized water, and a second ultrasonic generator is arranged at the bottom of the second cleaning tank, wherein the second ultrasonic generator is movably connected with the second cleaning tank; the cleaning agent recovery tank is arranged between the first cleaning tank and the second cleaning tank and is used for recovering cleaning agent; the first water return system is arranged on the cleaning agent recovery tank, and when the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the first water return system conveys the cleaning agent in the cleaning agent recovery tank back to the first cleaning tank; after entering a first cleaning tank for ultrasonic cleaning, the zirconium alloy pipe is subjected to ultrasonic cleaning, and then enters a second cleaning tank for ultrasonic cleaning after the dripped cleaning agent is recovered through a cleaning agent recovery tank; and when the conductivity of the deionized water in the second cleaning tank is more than 20 mu s/cm, replacing the deionized water in the second cleaning tank. The technical problems that in the prior art, residual bonding dirt on the surface of a zirconium alloy pipe cannot be effectively removed, the polished pipe needs to be manually wiped on the outer surface of the pipe one by one before packaging, and the production efficiency is low are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a flow chart of a method according to an embodiment of the invention;
FIG. 3 is a flow chart of a method according to another embodiment of the invention.
In the drawings, the list of components represented by the various numbers is as follows:
the zirconium alloy pipe comprises a zirconium alloy pipe body-1, a first inlet pipe orifice-2, a first cleaning tank-3, a hairbrush sealing ring-4, a first outlet pipe orifice-5, a first air blowing module-6, a second inlet pipe orifice-7, a second cleaning tank-8, a second outlet pipe orifice-9, a second air blowing module-10, a conveying system-11, a first ultrasonic generator-12, a water return pipeline-13, a water return pump-14, a cleaning agent recovery tank-15, a water level detector-16, a second ultrasonic generator-17 and a deionized water recovery tank-18.
Detailed Description
To further clarify the above and other features and advantages of the present invention, a further description of the invention will be rendered by reference to the appended drawings. It should be understood that the specific embodiments presented herein are for purposes of explanation to those skilled in the art and are intended to be illustrative only and not limiting.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the specific details need not be employed to practice the present invention. In other instances, well-known steps or operations have not been described in detail in order to avoid obscuring the invention.
The nuclear grade zirconium alloy pipe is generally used as a structural component of a fuel assembly, good corrosion resistance is required in a nuclear reactor, the corrosion resistance of the zirconium alloy pipe has a great relation with the surface condition, the finished zirconium alloy pipe is required to be subjected to abrasive belt polishing to remove an outer surface pollution layer, and the polished abrasive belt polishing material consists of colloid containing sand grains and bonded sand grains and remains on the surface of the pipe after polishing, so that the original online cleaning equipment cannot effectively remove the residual bonded dirt on the surface of the pipe, the polished pipe is required to be manually wiped on the outer surface of the pipe one by one before packaging, and the production efficiency is low.
Therefore, the invention provides the ultrasonic cleaning device and the ultrasonic cleaning method for the outer surface of the zirconium alloy pipe, which can effectively remove residual adhesive dirt on the surface of the zirconium alloy pipe and improve the production efficiency.
Example 1
The invention provides an ultrasonic cleaning device for the outer surface of a zirconium alloy pipe 1, as shown in figure 1, comprising: the cleaning device comprises a first cleaning tank 3, a second cleaning tank 8, a cleaning agent recovery tank 15 and a first water return system, wherein the cleaning agent is contained in the first cleaning tank 3, a first ultrasonic generator 12 is arranged at the bottom of the first cleaning tank 3, and the first ultrasonic generator 12 is preferably movably connected with the first cleaning tank 3; the second cleaning tank 8 is internally filled with deionized water, and a second ultrasonic generator 17 is arranged at the bottom of the second cleaning tank 8, and preferably, the second ultrasonic generator 17 is movably connected with the second cleaning tank 8. In a specific embodiment, the oscillator frequencies of the first ultrasonic generator 12 and the second ultrasonic generator 17 are 28 KHz-40 KHz.
The cleaning agent recovery tank 15 is arranged between the first cleaning tank 3 and the second cleaning tank 8 and is used for recovering the cleaning agent of the first cleaning tank 3; in a specific embodiment, the cleaning agent recovery tank 15 is connected to the first cleaning tank 3. Preferably, the cleaning agent adopts Alconox powder-shaped precise cleaning agent, more preferably, the Alconox powder-shaped precise cleaning agent is mixed with water to prepare the cleaning agent with the concentration of 1% -5%, and the cleaning agent is used for cleaning the outer surface of the zirconium alloy pipe 1 to be cleaned. The cleaning agent is mainly used for cleaning residual bonding dirt on the surface of the pipe, and comprises polished sand grains and colloid, and deionized water is mainly used for removing the residual cleaning agent on the surface of the pipe. The first backwater system is arranged on the cleaning agent recovery tank 15 and comprises a water level detector 16, a backwater pump 14 and a backwater pipeline 13, and when the water level detector 16 detects that the cleaning agent in the cleaning agent recovery tank 15 reaches a preset water level, the first backwater system conveys the cleaning agent in the cleaning agent recovery tank 15 back to the first cleaning tank 3 through the backwater pump 14 and the backwater pipeline 13.
Preferably, the first cleaning tank 3, the second cleaning tank 8, and the cleaning agent recovery tank 15 are each made of stainless steel.
After entering the first cleaning tank 3 for ultrasonic cleaning, the zirconium alloy pipe 1 recovers the dripped cleaning agent through the cleaning agent recovery tank 15, and then enters the second cleaning tank 8 for ultrasonic cleaning, deionized water with the conductivity not more than 20 mu s/cm is contained in the second cleaning tank 8, and a detector for detecting the conductivity of the deionized water is also arranged in the second cleaning tank 8, and when the conductivity of the deionized water in the second cleaning tank 8 is more than 20 mu s/cm, the deionized water in the second cleaning tank 8 is replaced.
In another preferred embodiment, the cleaning agent recovery tank 15 is provided on both sides of the first cleaning tank 3, and the cleaning agent recovery tank 15 on each side is provided with a first water return system.
Compared with the prior art, the method has the advantages that the first cleaning tank 3 added with the cleaning agent with the concentration of 1% -5% is used for ultrasonically cleaning the residual adhesive dirt on the outer surface of the zirconium alloy pipe 1, and the second cleaning tank 8 containing deionized water with the conductivity not more than 20 mu s/cm is used for ultrasonically cleaning, so that the residual dirt on the outer surface of the zirconium alloy pipe 1 can be effectively removed, and the equipment can be operated automatically and the production efficiency is greatly improved.
Preferably, the first cleaning tank 3 is a rectangular tank, wherein the opposite two sides of the first cleaning tank 3 are respectively provided with a first inlet pipe orifice 2 and a first outlet pipe orifice 5, and the first inlet pipe orifice 2 and the first outlet pipe orifice 5 are round holes and are concentrically arranged. The second cleaning tank 8 is a rectangular tank, wherein a second inlet pipe orifice 7 and a second outlet pipe orifice 9 are respectively arranged on two opposite side surfaces of the second cleaning tank 8, and the second inlet pipe orifice 7 and the second outlet pipe orifice 9 are round holes and are concentrically arranged; the first outlet opening 5 is arranged concentrically with the second inlet opening 7. It is further preferable that the first cleaning tank 3 is the same size as the second cleaning tank 8. More preferably, the diameters of the first inlet pipe orifice 2, the first outlet pipe orifice 5, the second inlet pipe orifice 7 and the second outlet pipe orifice 9 are the same, and the diameters of the first inlet pipe orifice 2, the first outlet pipe orifice 5, the second inlet pipe orifice 7 and the second outlet pipe orifice 9 are larger than the outer diameter of the zirconium alloy pipe 1 to be cleaned.
Preferably, the first inlet pipe orifice 2, the first outlet pipe orifice 5, the second inlet pipe orifice 7 and the second outlet pipe orifice 9 are all provided with brush sealing rings 4 for reducing overflow, more preferably, the brush sealing rings 4 are made of fiber bristle materials, and the brush sealing rings 4 are arranged on the inner wall of the cleaning tank.
Preferably, the first ultrasonic generator 12 and the second ultrasonic generator 17 are both arranged on the outer surface of the cleaning tank, wherein the vibration frequency of the first ultrasonic generator 12 and the second ultrasonic generator 17 is set to be 28 KHz-40 KHz. The first ultrasonic generator 12 and the second ultrasonic generator 17 may each include a plurality of ultrasonic vibration masses, and the number of ultrasonic vibration masses included in the first ultrasonic generator 12 and the second ultrasonic generator 17 may be the same or different. It is further preferred that a plurality of bolts are fixedly arranged on the outer surface of the bottom surface of the first cleaning tank 3 and used for connecting a plurality of ultrasonic vibration blocks, and the ultrasonic vibration blocks can be conveniently disassembled, assembled and replaced, and more preferred that the number of the bolts and the ultrasonic vibration blocks can be increased or reduced according to the needs so as to meet the needs of ultrasonic generation.
Preferably, the method further comprises: the deionized water recovery tank 18 and the second water return system, wherein the deionized water recovery tank 18 is arranged outside the second pipe outlet 9 and is used for recovering deionized water; the second water return system is arranged on the deionized water recovery tank 18 and comprises a water level detector 16, a water return pump 14 and a water return pipeline 13, and when the water level detector 16 detects that the deionized water in the deionized water recovery tank 18 reaches a preset water level, the second water return system conveys the deionized water in the deionized water recovery tank 18 back into the second cleaning tank 8 through the water return pump 14 and the water return pipeline 13.
In another preferred embodiment, the deionized water recovery tanks 18 are provided at both sides of the second cleaning tank 8, and each side of the deionized water recovery tanks 18 is provided with a second water return system. It should be noted that, between the first cleaning tank 3 and the second cleaning tank 8, a cleaning agent recovery tank 15 is connected to the first cleaning tank 3 or directly to the first cleaning tank 3, a deionized water recovery tank 18 is connected to the second cleaning tank 8 or directly to the second cleaning tank 8, and the cleaning agent recovery tank 15 and the deionized water recovery tank 18 disposed between the first cleaning tank 3 and the second cleaning tank 8 are not mutually communicated.
Preferably, the method further comprises: a conveying system 11 for controlling the zirconium alloy pipe 1 to continuously move from the first cleaning tank 3 to the second cleaning tank 8 at a speed of not more than 8 m/min; wherein, the conveying system 11 controls the zirconium alloy pipe 1 to rotate at a constant speed by taking the central axis as a rotating shaft in the moving process. The purpose of the rotary advancement of the zirconium alloy pipe 1 is to clean the outer surface more thoroughly.
Preferably, the method further comprises: a first air blowing module 6 and a second air blowing module 10, wherein the first air blowing module 6 is arranged above the cleaning agent recovery tank 15 and is used for blowing off residues on the outer surface of the zirconium alloy pipe 1 passing through the cleaning agent recovery tank 15; wherein the pressure of the high-pressure gas blown out by the first air blowing module 6 is 0.5MPa to 0.7MPa; the second air blowing module 10 is arranged above the deionized water recovery tank 18 and is used for blowing off residues on the outer surface of the zirconium alloy pipe 1 passing through the deionized water recovery tank 18; wherein the pressure of the high-pressure gas blown out by the second air blowing module 10 is 0.5-0.7 MPa. The residues on the outer surface of the zirconium alloy pipe 1 can be thoroughly removed by high-pressure air blowing on the outer surface of the zirconium alloy pipe 1 through the first air blowing module 6 and the second air blowing module 10.
Example two
The invention also provides an ultrasonic cleaning method for the outer surface of the zirconium alloy pipe, as shown in figures 2-3, comprising the following steps:
step S101, conveying the zirconium alloy pipe into a first cleaning tank for containing cleaning agent for first ultrasonic cleaning.
Specifically, in the scheme, the first cleaning tank is provided with a first ultrasonic generator for generating ultrasonic waves, and preferably, the vibration frequency of the first ultrasonic generator is set to be 28 KHz-40 KHz. The cleaning agent with the concentration of 1% -5% is preferably Alconox powder precise cleaning agent which is used for cleaning the outer surface of the zirconium alloy pipe to be cleaned and is mainly used for cleaning residual adhesive dirt on the surface of the pipe. In a specific embodiment, the zirconium alloy pipe can be controlled by a conveying system to continuously move at a speed of not more than 8 meters/minute from the first cleaning tank to the second cleaning tank; the conveying system controls the zirconium alloy pipe to rotate at a constant speed by taking the central axis as a rotating shaft in the moving process, so that the outer surface of the zirconium alloy pipe is thoroughly cleaned. Preferably, on the first cleaning tank, brush sealing rings are arranged at the inlet and the outlet of the zirconium alloy pipe for reducing overflow.
Step S103, conveying the zirconium alloy pipe subjected to the first ultrasonic cleaning to a second cleaning tank through the upper part of a cleaning agent recovery tank; when the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the first water return system conveys the cleaning agent in the cleaning agent recovery tank back to the first cleaning tank.
Specifically, in the scheme, the cleaning agent recovery tank is used for recovering the cleaning agent flowing out of the first cleaning tank and the cleaning agent attached to the outer surface of the pipe. The cleaning agent recovery tank is provided with a first backwater system, and comprises a water level detector, a backwater pump and a backwater pipeline, when the water level detector detects that the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the first backwater system conveys the cleaning agent in the cleaning agent recovery tank back to the first cleaning tank through the backwater pump and the backwater pipeline.
Step S104, carrying out second ultrasonic cleaning on the zirconium alloy pipe conveyed into the second cleaning tank for containing deionized water; and when the conductivity of the deionized water in the second cleaning tank is more than 20 mu s/cm, replacing the deionized water in the second cleaning tank.
Specifically, in the scheme, the second cleaning tank is provided with a second ultrasonic generator for generating ultrasonic waves, and preferably, the vibration frequency of the second ultrasonic generator is set to be 28 KHz-40 KHz. The second cleaning tank is filled with deionized water with conductivity not more than 20 mu s/cm and is mainly used for removing residual cleaning agent on the surface of the pipe. After a period of cleaning, when the conductivity of the deionized water in the second cleaning tank is more than 20 mu s/cm, the deionized water in the second cleaning tank is replaced, so that the residual cleaning agent on the surface of the pipe is removed more effectively. Preferably, on the second cleaning tank, brush sealing rings are arranged at the inlet and the outlet of the zirconium alloy pipe for reducing overflow.
Preferably, in step S101, before conveying the zirconium alloy pipe into the first cleaning tank containing the cleaning agent for the first ultrasonic cleaning, the method further includes:
and S100, cleaning the inner wall of the zirconium alloy pipe, closing the pipe orifices at the two ends of the pipe, and polishing the outer wall of the zirconium alloy pipe.
Specifically, in the scheme, the inner wall of the zirconium alloy pipe can be washed by using a cleaning agent, air blowing is performed, and then the pipe orifices at the two ends of the zirconium alloy pipe are sealed by using the plug cover so as to continuously clean the outer surface of the zirconium alloy pipe in the next step.
Preferably, in step S101, after conveying the zirconium alloy pipe into the first cleaning tank containing the cleaning agent for the first ultrasonic cleaning, the method further includes:
and S102, performing high-pressure air blowing on the outer surface of the zirconium alloy pipe through a first air blowing module.
Specifically, in the step, high-pressure gas blown out by the first air blowing module can be used for removing residues on the outer surface of the zirconium alloy pipe subjected to the first ultrasonic cleaning; preferably, the pressure of the high-pressure gas blown out by the first air blowing module is 0.5MPa to 0.7MPa;
preferably, in step S104, the zirconium alloy pipe conveyed into the second cleaning tank for containing deionized water is subjected to a second ultrasonic cleaning; wherein when the conductivity of deionized water in the second cleaning tank is greater than 20 μs/cm, the method further comprises the steps of:
and step S105, performing high-pressure air blowing on the outer surface of the zirconium alloy pipe through a second air blowing module.
Specifically, in the step, the residue on the outer surface of the zirconium alloy pipe subjected to the second ultrasonic cleaning can be removed by using high-pressure gas blown out by the second air blowing module; preferably, the pressure of the high-pressure gas blown out by the second air blowing module is 0.5MPa to 0.7MPa;
preferably, in step S105, the high-pressure air blowing to the outer surface of the zirconium alloy pipe through the second air blowing module may further include:
step S106, conveying the zirconium alloy pipe subjected to the second ultrasonic cleaning to the next working procedure above a deionized water recovery tank; when the deionized water in the deionized water recovery tank reaches a preset water level, the second water return system conveys the deionized water in the deionized water recovery tank back to the second cleaning tank.
Specifically, in the present solution, the deionized water recovery tank may be used to recover the deionized water flowing from the second cleaning tank and the deionized water attached to the outer surface of the pipe. The deionized water recovery tank is arranged outside the second pipe outlet and is connected with the second cleaning tank; the second backwater system is arranged on the deionized water recovery tank and comprises a water level detector, a backwater pump and a backwater pipeline, and when the water level detector detects that the deionized water in the deionized water recovery tank reaches a preset water level, the second backwater system conveys the deionized water in the deionized water recovery tank back to the second cleaning tank through the backwater pump and the backwater pipeline.
Compared with the prior art, the method can effectively remove residual adhesive dirt on the surface of the nuclear-grade zirconium alloy pipe, and the polished pipe does not need to wipe the outer surface of the pipe manually one by one before packaging, so that the labor cost is reduced, and the production efficiency is improved. The residues on the outer surface of the zirconium alloy pipe prepared by the method are removed cleanly, and no foreign matters exist.
The technical features described above may be arbitrarily combined. Although not all possible combinations of features are described, any combination of features should be considered to be covered by the description provided that such combinations are not inconsistent.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. An ultrasonic cleaning device for the outer surface of a zirconium alloy pipe is characterized by comprising:
the cleaning device comprises a first cleaning tank, wherein a cleaning agent is contained in the first cleaning tank, a first ultrasonic generator is arranged at the bottom of the first cleaning tank, the first ultrasonic generator is movably connected with the first cleaning tank, a first pipe inlet and a first pipe outlet are respectively arranged on two opposite side surfaces of the first cleaning tank, alconox powder precise cleaning agent is mixed with water to prepare a cleaning agent with the concentration of 1% -5%, and the cleaning agent is used for cleaning the outer surface of a zirconium alloy pipe to be cleaned;
the second cleaning tank is internally filled with deionized water, the bottom of the second cleaning tank is provided with a second ultrasonic generator, the second ultrasonic generator is movably connected with the second cleaning tank, and a second pipe inlet and a second pipe outlet are respectively arranged on two opposite side surfaces of the second cleaning tank;
the first inlet pipe orifice, the first outlet pipe orifice, the second inlet pipe orifice and the second outlet pipe orifice are respectively provided with a brush sealing ring for reducing overflow;
the first ultrasonic generator and the second ultrasonic generator are both arranged on the outer surface of the cleaning tank, wherein the vibration frequency of the first ultrasonic generator and the second ultrasonic generator is set to be 28 KHz-40 KHz;
the cleaning agent recovery tank is arranged between the first cleaning tank and the second cleaning tank and is used for recovering cleaning agent;
the first water return system is arranged on the cleaning agent recovery tank, and when the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the cleaning agent in the cleaning agent recovery tank is conveyed back into the first cleaning tank by the first water return system;
after entering the first cleaning tank for ultrasonic cleaning, the zirconium alloy pipe is subjected to ultrasonic cleaning by the second cleaning tank after the dripped cleaning agent is recovered by the cleaning agent recovery tank; when the conductivity of the deionized water in the second cleaning tank is more than 20 mu s/cm, replacing the deionized water in the second cleaning tank;
a conveying system for controlling the zirconium alloy pipe to continuously move from the first cleaning tank to the second cleaning tank at a speed of not more than 8 m/min; wherein, in the moving process, the conveying system controls the zirconium alloy pipe to rotate at a constant speed by taking the central axis as a rotating shaft;
the deionized water recovery tank is arranged outside the second pipe outlet and is used for recovering deionized water;
the second water return system is arranged on the deionized water recovery tank, and when the deionized water in the deionized water recovery tank reaches a preset water level, the second water return system conveys the deionized water in the deionized water recovery tank back to the second cleaning tank;
the first air blowing module is arranged above the cleaning agent recovery tank and is used for blowing off residues on the outer surface of the zirconium alloy pipe passing through the cleaning agent recovery tank; the pressure of the high-pressure gas blown out by the first air blowing module is 0.5-0.7 MPa;
the second air blowing module is arranged above the deionized water recovery tank and is used for blowing off residues on the outer surface of the zirconium alloy pipe passing through the deionized water recovery tank; wherein the pressure of the high-pressure gas blown out by the second air blowing module is 0.5-0.7 MPa.
2. The apparatus of claim 1, wherein the first cleaning tank is a rectangular tank, and wherein the first inlet nozzle and the first outlet nozzle are circular holes and are concentrically arranged.
3. The apparatus of claim 2, wherein the second cleaning tank is a rectangular tank, and wherein the second inlet nozzle and the second outlet nozzle are circular holes and are concentrically arranged; the first pipe outlet and the second pipe inlet are concentrically arranged.
4. The apparatus of claim 3, wherein the first inlet nozzle, the first outlet nozzle, the second inlet nozzle, and the second outlet nozzle are all the same diameter.
5. An ultrasonic cleaning method for the outer surface of a zirconium alloy pipe, which is applied to the device of any one of claims 1 to 4, and is characterized by comprising the following steps:
conveying the zirconium alloy pipe into a first cleaning tank for containing cleaning agent for first ultrasonic cleaning;
conveying the zirconium alloy pipe subjected to the first ultrasonic cleaning to a second cleaning tank above a cleaning agent recovery tank; when the cleaning agent in the cleaning agent recovery tank reaches a preset water level, the first water return system conveys the cleaning agent in the cleaning agent recovery tank back to the first cleaning tank;
carrying out second ultrasonic cleaning on the zirconium alloy pipe conveyed into the second cleaning tank for containing deionized water; and when the conductivity of the deionized water in the second cleaning tank is more than 20 mu s/cm, replacing the deionized water in the second cleaning tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210450487.8A CN114733846B (en) | 2022-04-24 | 2022-04-24 | Ultrasonic cleaning device and method for outer surface of zirconium alloy pipe |
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| CN202210450487.8A CN114733846B (en) | 2022-04-24 | 2022-04-24 | Ultrasonic cleaning device and method for outer surface of zirconium alloy pipe |
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| CN114733846B true CN114733846B (en) | 2024-03-15 |
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| CN114733846A (en) | 2022-07-12 |
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