CN110328176B - Small-gap superconducting cavity inner surface high-pressure flushing equipment - Google Patents
Small-gap superconducting cavity inner surface high-pressure flushing equipment Download PDFInfo
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- CN110328176B CN110328176B CN201910609127.6A CN201910609127A CN110328176B CN 110328176 B CN110328176 B CN 110328176B CN 201910609127 A CN201910609127 A CN 201910609127A CN 110328176 B CN110328176 B CN 110328176B
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- 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
- B08B3/02—Cleaning by the force of jets or sprays
Abstract
The invention relates to high-pressure flushing equipment for the inner surface of a small-gap superconducting cavity, which is characterized by comprising a support frame, an upper support table surface, a rotary platform, a spray rod, a platform driving device, a spray rod driving device, a high-pressure diaphragm pump and a control system, wherein the support frame is arranged on the upper support table surface; the top of the supporting frame is fixedly connected with an upper supporting table-board, and the top of the upper supporting table-board is provided with a rotating platform; the centers of the support frame and the upper support table top are both provided with a first through hole for the reciprocating motion of the spray rod, the center of the rotating platform is provided with a second through hole for the reciprocating motion of the spray rod, the first through hole and the second through hole of the upper support table top are respectively provided with a guide sleeve for positioning and supporting the spray rod, the top of the spray rod is provided with a spray head, and the bottom of the spray rod is connected with a high-pressure diaphragm pump; a platform driving device and a spray rod driving device are arranged on the supporting frame; the high-pressure diaphragm pump, the platform driving device and the spray rod driving device are respectively and electrically connected with a control system, and the invention can be widely applied to the technical field of accelerator manufacturing.
Description
Technical Field
The invention relates to high-pressure ultrapure water flushing equipment, relates to high-pressure flushing equipment for the inner surface of a small-gap superconducting cavity, and belongs to the technical field of accelerator manufacturing.
Background
The high-pressure ultrapure water washing is a key step for obtaining excellent performance of the superconducting cavity and is a key link for surface treatment of the superconducting cavity. After surface chemical buffer polishing, high-temperature dehydrogenation and ultrasonic washing, the superconducting cavity is washed by high-pressure ultrapure water, so that impurity particles attached to the inner surface of the superconducting cavity are thoroughly removed, and the design performance of the superconducting cavity is realized.
The early treatment process of the superconducting cavity has the defects that tiny particles are attached to the inner wall of the cavity body, the superconducting performance of the cavity body is seriously influenced due to the existence of the tiny particles, and therefore high-pressure ultrapure water is needed to be adopted for washing the tiny particles to remove impurities on the inner surface of the cavity body. The existing flushing equipment adopts ultrapure water of 18.2 megaohms, the water pressure is increased to dozens of to more than one hundred of atmospheric pressures (Bar) by the driving of a high-pressure water pump, and the inner wall of a superconducting cavity is flushed by a high-pressure water column formed by a connecting pipeline, a related transmission mechanism, a driving mechanism, a spray rod and a spray head.
However, it is difficult to solve the problem of flushing a small-gap superconducting cavity in the superconducting cavity, and it needs to solve the stability of the nozzle and the spray bar during the flushing process, so as not to touch the inner wall of the cavity when passing through the small gap of the superconducting cavity, resulting in the rejection of the superconducting cavity and realizing the safe flushing of the inner wall of the cavity.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a small gap superconducting cavity inner surface high pressure flushing device with stability and safety.
In order to achieve the purpose, the invention adopts the following technical scheme: a high-pressure flushing device for the inner surface of a small-gap superconducting cavity is characterized by comprising a support frame, an upper support table surface, a rotary platform, a spray rod, a platform driving device, a spray rod driving device, a high-pressure diaphragm pump and a control system; the top of the support frame is fixedly connected with the upper support table top, and the top of the upper support table top is provided with the rotating platform for supporting the superconducting cavity to be washed; the centers of the support frame and the upper support table top are both provided with a first through hole for the reciprocating motion of the spray rod, the center of the rotating platform is provided with a second through hole for the reciprocating motion of the spray rod, the first through hole and the second through hole of the upper support table top are respectively provided with a guide sleeve for positioning and supporting the spray rod, the top of the spray rod is provided with a spray head, and the bottom of the spray rod is connected with the high-pressure diaphragm pump; the support frame is provided with the platform driving device and the spray rod driving device, the platform driving device is used for driving the rotary platform to rotate, and the spray rod driving device is used for driving the spray rod to reciprocate; the high-pressure diaphragm pump, the platform driving device and the spray rod driving device are also respectively and electrically connected with the control system.
Preferably, the rotating platform is formed by fixedly connecting a top plate and a rotating base.
Preferably, the platform driving device comprises a supporting base, a transmission gear, a first transmission wheel, a second transmission wheel, a first transmission belt and a first motor; the supporting base is sleeved on the outer side of the rotating base, and the top of the supporting base is fixedly connected with the rotating base through a rotating bearing; an accommodating space is formed in the upper support table surface, the transmission gear, the first transmission wheel and the second transmission wheel are arranged in the accommodating space, the transmission gear is fixedly connected with the bottom of the rotating base, the first transmission belt is sleeved outside the first transmission wheel and the second transmission wheel, and the transmission gear is in meshed connection with the first transmission wheel and the second transmission wheel; the second driving wheel is fixedly connected with the output end of the first motor, and the first motor is electrically connected with the control system.
Preferably, the spray rod driving device comprises a positioning support plate, a positioning rod, a conveying plate, a worm gear, a third driving wheel, a fourth driving wheel, a second driving belt and a second motor; the third driving wheel, the fourth driving wheel and the second driving belt are all arranged in the accommodating space; the upper part and the lower part of the support frame are respectively and fixedly connected with the positioning support plate; the positioning rods are positioned between the two positioning support plates, and the two positioning rods are longitudinally arranged in the support frame at intervals; the two positioning rods are connected with the transmission plate in a sliding manner, and the transmission plate is fixedly connected with the lower part of the spray rod; the worm gear and the worm are fixedly inserted in the support frame, a worm wheel of the worm gear and the worm is fixedly connected with the conveying plate, the bottom of the worm gear and the worm is fixedly connected with the positioning support plate positioned below the worm, the top of the worm gear and the worm penetrates through the support frame to be fixedly connected with a third transmission wheel, the third transmission wheel is meshed with a fourth transmission wheel, and a second transmission belt is sleeved on the outer sides of the third transmission wheel and the fourth transmission wheel; the fourth driving wheel is fixedly connected with the output end of the second motor, and the second motor is electrically connected with the control system.
Preferably, the upper part and the lower part of the support frame are respectively provided with a limit switch for limiting the conveying plate.
Preferably, a water receiving tray for receiving and leading out the discharged and flushed wastewater is arranged between the rotating platform and the upper supporting platform surface.
Preferably, the bottom of the spray bar is provided with a high pressure sealing joint.
Preferably, a parameter setting module, a high-pressure diaphragm pump control module and a motor control module are arranged in the control system; the parameter setting module is used for presetting working parameters comprising displacement, moving speed and reciprocating times of the spray rod, the rotating speed of the rotating platform and the working water pressure of the high-pressure diaphragm pump; the high-pressure diaphragm pump control module is used for controlling the high-pressure diaphragm pump to work according to preset corresponding working parameters; the motor control module is used for controlling the rotation of the rotating platform through the first motor and controlling the working of the spray rod through the second motor according to preset corresponding working parameters.
Preferably, the spray rod and the spray head are both made of stainless steel pipes.
Preferably, a plurality of nozzles in different directions are arranged on the nozzle, and the minimum distance between the nozzle and the inner wall of the superconducting cavity is only 11.8 mm.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. in the aspect of stability of the spray rod, the spray rod adopts a structure of a guide sleeve, a positioning rod, a transmission plate and a rotary bearing, and the stable operation of the spray rod is ensured through multi-point positioning. 2. The spray rod moves under the driving of the second motor, the worm and gear drive the conveying plate to reciprocate, the up-down displacement of the spray rod is realized by the control system through parameter setting, and the limit switches arranged at the upper part and the lower part of the support frame realize reliable safety protection when the control system fails to control, so that the spray rod is prevented from contacting the superconducting cavity to cause loss, and the spray rod can be widely applied to the technical field of accelerator manufacturing.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings. It is to be understood, however, that the drawings are provided solely for the purposes of promoting an understanding of the invention and that they are not to be construed as limiting the invention. In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the high-pressure flushing device for the inner surface of the small-gap superconducting cavity provided by the invention comprises a support frame 1, an upper support table top 2, a rotary platform 3, a spray rod 4, a platform driving device 5, a spray rod driving device 6, a high-pressure diaphragm pump 7 and a control system, wherein the support frame 1 adopts a rectangular frame structure, and the rotary platform 3 is formed by fixedly connecting a top plate 31 and a rotary base 32.
The top of support frame 1 is connected fixedly and is supported mesa 2, and the top of going up support mesa 2 is provided with rotary platform 3, and rotary platform 3 is used for positioning spray lance 4 and supports the superconducting cavity of waiting to wash. The first through-hole that is used for spray lance 4 reciprocating motion is all seted up at the center of support frame 1 and last supporting surface 2, and the second through-hole that is used for spray lance 4 reciprocating motion is seted up at rotary platform 3's center, is provided with guide pin bushing 33 on the first through-hole of going up supporting surface 2 and the second through-hole respectively, and guide pin bushing 33 is used for the location to support spray lance 4, and the top of spray lance 4 is provided with shower nozzle 41. Be provided with platform drive arrangement 5 and spray lance drive arrangement 6 on support frame 1, the bottom of supporting table face 2 is connected to platform drive arrangement 5 fixed connection, platform drive arrangement 5 is used for the rotatory platform 3 rotation of drive, spray lance drive arrangement 6 is used for driving spray lance 4 and carries out reciprocating motion, the delivery port of high-pressure diaphragm pump 7 is connected through high-pressure hose 8 in the bottom of spray lance 4, outside ultrapure water system is connected to the water inlet of high-pressure diaphragm pump 7.
In addition, the platform driving device 5, the spray rod driving device 6 and the high-pressure diaphragm pump 7 are respectively electrically connected with a control system.
In a preferred embodiment, the platform driving means 5 comprise a support base 51, a rotation bearing 52, a transmission gear 53, a first transmission wheel 54, a second transmission wheel 55, a first transmission belt 56 and a first motor 57. The top of the upper supporting table top 2 is provided with a supporting base 51, the outer side of the rotating base 32 is sleeved with the supporting base 51, and the top of the supporting base 51 is fixedly connected with the rotating base 32 through a rotating bearing 52. An accommodating space is formed in the upper supporting table top 2 and used for accommodating the driving wheel and the driving belt. A transmission gear 53, a first transmission wheel 54 and a second transmission wheel 55 are arranged in the accommodating space, the transmission gear 53 is fixedly connected with the bottom of the rotating base 32, a first transmission belt 56 is sleeved outside the first transmission wheel 54 and the second transmission wheel 55, the transmission gear 53 is meshed with the first transmission wheel 54 and the first transmission wheel 54 is meshed with the second transmission wheel 55, the second transmission wheel 55 is fixedly connected with the output end of a first motor 57, the first motor 57 is electrically connected with a control system, and the control system drives the rotating platform 3 to rotate through the transmission of the second transmission wheel 55, the first transmission wheel 54 and the transmission gear 53 through the first motor 57.
In a preferred embodiment, the boom drive 6 comprises a positioning support plate 61, a positioning rod 62, a transfer plate 63, a worm gear 64, a third drive wheel 65, a fourth drive wheel 66, a second drive belt 67, a limit switch 68 and a second motor 69, wherein the third drive wheel 65, the fourth drive wheel 66 and the second drive belt 67 are all arranged in the accommodating space of the upper support table 2.
The upper part and the lower part of the support frame 1 are respectively fixedly connected with a positioning support plate 61; be located between two location backup pads 61, still be provided with two locating levers 62 at longitudinal interval in support frame 1, the equal fixed connection in location backup pad 61 that is located the top in the top of two locating levers 62, the equal fixed connection in location backup pad 61 that is located the below in the bottom of two locating plates, sliding connection conveying board 63 on two locating levers 62, the lower part of conveying board 63 fixed connection spray lance 4. And a worm gear 64 is inserted and fixed between the two positioning rods 62 in the support frame 1, a worm wheel of the worm gear 64 is fixedly connected with the conveying plate 63, and when the worm of the worm gear 64 rotates forwards and backwards, the conveying plate 63 can be driven to move up and down. The bottom of the worm gear 64 is fixedly connected with the positioning support plate 61 positioned below, the top of the worm gear 64 penetrates through the support frame 1 and is fixedly connected with a third transmission wheel 65, the third transmission wheel 65 is meshed with a fourth transmission wheel 66, and a second transmission belt 67 is sleeved on the outer sides of the third transmission wheel and the fourth transmission wheel. The upper and lower parts of the supporting frame 1 are further provided with limit switches 68 for limiting the conveying plate 63, respectively. The fourth transmission wheel 66 is fixedly connected with the output end of a second motor 69, the second motor 69 is electrically connected with a control system, the control system transmits the rotation to the worm gear 64 through the fourth transmission wheel 66, the third transmission wheel 65 and the second transmission belt 67 by the second motor 69, and the worm gear 64 drives the spray rod 4 to reciprocate through the transmission plate 63.
In a preferred embodiment, a water receiving tray 9 is arranged between the rotary platform 3 and the upper supporting platform surface 2 and is used for receiving and leading out the flushed waste water.
In a preferred embodiment, the bottom of the spray bar 4 is provided with a high pressure seal joint 42.
In a preferred embodiment, a parameter setting module, a high pressure diaphragm pump control module and a motor control module are provided within the control system. The parameter setting module is used for presetting working parameters, including displacement, moving speed and reciprocating times of the spray rod 4, rotating speed of the rotating platform 3 and working water pressure of the high-pressure diaphragm pump 7. The high-pressure diaphragm pump control module is used for controlling the work of the high-pressure diaphragm pump 7 according to preset working water pressure. The motor control module is used for controlling the rotation of the rotary platform 3 according to the preset rotation speed of the rotary platform 3; and controlling the operation of the spray bar 4 by the second motor 69 according to the preset displacement amount, moving speed and reciprocating times of the spray bar 4.
In a preferred embodiment, the first motor 57 and the second motor 69 may each be a stepper motor.
In a preferred embodiment, because the slender spray Bar 4 is adopted, the water pressure sprayed by the spray heads 41 is up to dozens to hundreds of atmospheric pressures (Bar), and the displacement of the spray Bar 4 can reach 1000mm at most, the stability of the spray Bar 4 is extremely difficult to control, and slight swinging or verticality deviation in operation can cause damage to a superconducting cavity, so that high requirements are imposed on the stability of the spray Bar 4. To ensure stability of spray bar 4, it is necessary that spray bar 4 have a certain hardness and be able to operate stably and without generating rust and foreign matter in spray bar 4, and therefore, spray bar 4 may be made of 316L stainless steel tubing having a length of 1300mm, a wall thickness of 2mm, and an outer diameter of 10 mm.
In a preferred embodiment, the showerhead 41 may be a 440C stainless steel showerhead having a length of 32mm and an outer diameter of 13mm at its maximum.
In a preferred embodiment, eight nozzles with a diameter of 0.2mm are arranged on the spray head 41 in different directions, and the minimum distance between the spray head 41 and the inner wall of the superconducting cavity is only 11.8 mm.
The use of the high-pressure flushing device for the inner surface of the small-gap superconducting cavity of the invention is explained in detail by the following specific embodiments:
1) after the position of the washing port of the superconducting cavity to be washed and the position of the nozzle 41 are positioned, the superconducting cavity to be washed is fixed on the rotary platform 3 through a special bracket.
2) Working parameters of the control system are preset, the control system starts the first motor 57 according to the preset working parameters, and the rotary platform 3 is driven to rotate through the transmission of the second transmission wheel 55, the first transmission wheel 54 and the transmission gear 53.
3) The control system starts the high-pressure diaphragm pump 7 according to preset working parameters, water from an external ultrapure water system is raised to working water pressure through the high-pressure diaphragm pump 7 and is sprayed to the superconducting cavity to be washed through the high-pressure hose 8, the spray rod 4 and the spray head 41.
4) At the same time, the control system starts the second motor 69 according to preset working parameters, so that the worm gear 64 rotates, and the spray bar 4 is driven to reciprocate by the conveying plate. Due to the rotation motion of the rotary platform 3 and the reciprocating motion of the spray head 41, high-pressure water columns can be sprayed to all parts of the superconducting cavity to be washed, and the superconducting cavity can be washed.
5) The flushed water is received by the water receiving disc 9 and is led out for discharge, after the flushing is finished after the preset reciprocating times, the control system controls the spray rod 4 to return to the initial position, the first motor 57, the second motor 69 and the high-pressure diaphragm pump 7 stop working, and the flushing of the superconducting cavity is finished.
The above embodiments are only used for illustrating the present invention, and the structure, connection mode, manufacturing process, etc. of the components may be changed, and all equivalent changes and modifications performed on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.
Claims (7)
1. The high-pressure flushing equipment for the inner surface of the small-gap superconducting cavity is characterized by comprising a support frame, an upper support table surface, a rotating platform, a spray rod, a platform driving device, a spray rod driving device, a high-pressure diaphragm pump and a control system, wherein the rotating platform is formed by fixedly connecting a top plate and a rotating base;
the top of the support frame is fixedly connected with the upper support table top, and the top of the upper support table top is provided with the rotating platform for supporting the superconducting cavity to be washed; the centers of the support frame and the upper support table top are both provided with a first through hole for the reciprocating motion of the spray rod, the center of the rotating platform is provided with a second through hole for the reciprocating motion of the spray rod, and the first through hole and the second through hole of the upper support table top are respectively provided with a guide sleeve for positioning and supporting the spray rod; the top of the spray rod is provided with a spray head, and the bottom of the spray rod is connected with the high-pressure diaphragm pump;
the support frame is provided with the platform driving device and the spray rod driving device, the platform driving device is used for driving the rotary platform to rotate, and the spray rod driving device is used for driving the spray rod to reciprocate;
the high-pressure diaphragm pump, the platform driving device and the spray rod driving device are also respectively and electrically connected with the control system;
the platform driving device comprises a supporting base, a transmission gear, a first transmission wheel, a second transmission wheel, a first transmission belt and a first motor;
the supporting base is sleeved on the outer side of the rotating base, and the top of the supporting base is fixedly connected with the rotating base through a rotating bearing; an accommodating space is formed in the upper support table surface, the transmission gear, the first transmission wheel and the second transmission wheel are arranged in the accommodating space, the transmission gear is fixedly connected with the bottom of the rotating base, the first transmission belt is sleeved outside the first transmission wheel and the second transmission wheel, and the transmission gear is in meshed connection with the first transmission wheel and the second transmission wheel;
the second driving wheel is fixedly connected with the output end of the first motor, and the first motor is electrically connected with the control system;
the spray rod driving device comprises a positioning support plate, a positioning rod, a conveying plate, a worm gear, a third driving wheel, a fourth driving wheel, a second driving belt and a second motor;
the third driving wheel, the fourth driving wheel and the second driving belt are all arranged in the accommodating space;
the upper part and the lower part of the support frame are respectively and fixedly connected with the positioning support plate; the positioning rods are positioned between the two positioning support plates, and the two positioning rods are longitudinally arranged in the support frame at intervals; the two positioning rods are connected with the transmission plate in a sliding manner, and the transmission plate is fixedly connected with the lower part of the spray rod; the worm gear and the worm are fixedly inserted in the support frame, a worm wheel of the worm gear and the worm is fixedly connected with the conveying plate, the bottom of the worm gear and the worm is fixedly connected with the positioning support plate positioned below the worm, the top of the worm gear and the worm penetrates through the support frame to be fixedly connected with a third transmission wheel, the third transmission wheel is meshed with a fourth transmission wheel, and a second transmission belt is sleeved on the outer sides of the third transmission wheel and the fourth transmission wheel;
the fourth driving wheel is fixedly connected with the output end of the second motor, and the second motor is electrically connected with the control system.
2. The high-pressure flushing device for the inner surface of the small-gap superconducting cavity as claimed in claim 1, wherein the upper part and the lower part of the supporting frame are respectively provided with limit switches for limiting the position of the transmission plate.
3. The small-gap superconducting cavity inner surface high-pressure flushing device as claimed in claim 1, wherein a water receiving tray for receiving and leading out flushed wastewater is arranged between the rotating platform and the upper supporting platform.
4. The small-gap superconducting cavity inner surface high-pressure flushing device as claimed in claim 1, wherein the bottom of the spray rod is provided with a high-pressure sealing joint.
5. The small-gap superconducting cavity inner surface high-pressure flushing device as claimed in claim 1, wherein a parameter setting module, a high-pressure diaphragm pump control module and a motor control module are arranged in the control system;
the parameter setting module is used for presetting working parameters comprising displacement, moving speed and reciprocating times of the spray rod, the rotating speed of the rotating platform and the working water pressure of the high-pressure diaphragm pump;
the high-pressure diaphragm pump control module is used for controlling the high-pressure diaphragm pump to work according to preset corresponding working parameters;
the motor control module is used for controlling the rotation of the rotating platform through the first motor and controlling the working of the spray rod through the second motor according to preset corresponding working parameters.
6. A high pressure flushing device with small gap superconducting cavity inner surface as claimed in any one of claims 1 to 5, characterized in that the spray bar and the spray head are made of stainless steel pipes.
7. A high-pressure flushing device for the inner surface of a small-gap superconducting cavity as claimed in any one of claims 1 to 5, wherein a plurality of nozzles with different directions are arranged on the nozzle, and the minimum distance between the nozzle and the inner wall of the superconducting cavity is only 11.8 mm.
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| CN201910609127.6A CN110328176B (en) | 2019-07-08 | 2019-07-08 | Small-gap superconducting cavity inner surface high-pressure flushing equipment |
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| CN201910609127.6A CN110328176B (en) | 2019-07-08 | 2019-07-08 | Small-gap superconducting cavity inner surface high-pressure flushing equipment |
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| CN110328176B true CN110328176B (en) | 2021-11-19 |
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| CN115365208B (en) * | 2022-08-22 | 2023-07-14 | 中国科学院上海高等研究院 | High-pressure ultrapure water spray device |
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