CN112570348A - Desilting device and desilting method for stern shaft tube sealing device - Google Patents
Desilting device and desilting method for stern shaft tube sealing device Download PDFInfo
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- CN112570348A CN112570348A CN202011334441.7A CN202011334441A CN112570348A CN 112570348 A CN112570348 A CN 112570348A CN 202011334441 A CN202011334441 A CN 202011334441A CN 112570348 A CN112570348 A CN 112570348A
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- tube sealing
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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Abstract
The invention discloses a dredging device and a dredging method for a stern shaft tube sealing device, which comprise an integrated water pump (2) and an extension type spray head (4) capable of extending into an inner cavity of the stern shaft tube sealing device, wherein the extension type spray head (4) is connected with the integrated water pump (2) through a water feeding pipeline (3), and the water inlet end of the integrated water pump (2) is communicated with a fresh water cabin (8) through a water suction pipeline (1); and the device also comprises a sewage collecting pipeline (7) which is butted with the water outlet end at the lower end of the stern shaft tube sealing device (10). Jet cleaning is carried out on the inside of the stern shaft tube sealing device through the extending-in type spray nozzle, accumulated silt and scale attached to the surface are removed, the internal structure of the sealing device is in a good cleaning state without damaging the internal structure and the matching state, and long-term reliable use of the sealing device is guaranteed.
Description
Technical Field
The invention belongs to the field of ship stern shaft tube sealing devices, and particularly relates to a dredging device and a dredging method for a stern shaft tube sealing device.
Background
The stern shaft tube sealing device is important equipment of a ship propulsion system, is used for realizing good sealing of the position of a stern shaft passing through a ship body structure and preventing outboard seawater from flowing into a cabin through the cabin passing part. The core sealing component of the traditional stern shaft tube sealing device is a mechanical sealing structure consisting of a moving ring and a static ring, and is provided with a buffer spring, a sealing ring and other components simultaneously so as to ensure that the static ring structure is continuously compressed on the contact surface of the moving ring.
In engineering use, the design structure has certain disadvantages: because the sea water in the offshore area is rich in impurities such as silt, the sealing device is soaked in the sea water environment for a long time, and silt accumulation is easily generated at the positions of the buffer spring and the sealing ring after long-term use, so that the follow-up performance of the static ring structure is gradually deteriorated, even clamping stagnation occurs, the contact surface of the static ring and the moving ring cannot be tightly attached, a large amount of water leakage phenomena are caused, and the effective work of the stern shaft tube sealing device is influenced.
Disclosure of Invention
The invention aims to solve the technical problem that the traditional stern shaft tube sealing device is easy to generate sediment accumulation, and designs a dredging device and a dredging method for the stern shaft tube sealing device.
In order to solve the technical problems, the invention adopts the following technical scheme:
a dredging device for a stern shaft tube sealing device is characterized by comprising an integrated water pump (2) and a stretching-in type spray head (4) capable of stretching into an inner cavity of the stern shaft tube sealing device, wherein the stretching-in type spray head (4) is connected with the integrated water pump (2) through a water feeding pipeline (3), and a water inlet end of the integrated water pump (2) is communicated with a fresh water cabin (8) through a water suction pipeline (1); the device also comprises a sewage collecting pipeline (7) which is in butt joint with the water outlet end at the lower end of the stern shaft tube sealing device (10), and the outlet of the sewage collecting pipeline (7) is communicated with a sewage tank (9).
Among the above-mentioned technical scheme, stretching into formula shower nozzle (4) including 2 ~ 3 shower nozzles, the shower nozzle is whole or can rotate respectively and or buckle and make the efflux direction towards different positions of stern shaft tube sealing device (10) inner chamber.
Among the above-mentioned technical scheme, the efflux splash of each shower nozzle of formula shower nozzle (4) of stretching into possesses three kinds of shapes of 0 °, 30 fan-shaped and gondola water faucet respectively, corresponds three kinds of spray rinsing modes.
In the technical scheme, the extension type nozzle (4) is integrated with a high-definition endoscope head, and the endoscope head is used for acquiring images and/or videos of the inner cavity of the stern shaft tube sealing device (10).
In the technical scheme, the controller (5) is connected with the extension-type spray head (4) and is used for controlling the bending and/or rotating direction of the extension-type spray head (4) and the lamp brightness, focusing, video recording and shooting operations of the endoscope head.
Among the above-mentioned technical scheme, stretch into formula shower nozzle (4) and stretch into stern shaft tube sealing device inside from stern shaft tube sealing device upper end water inlet.
In the technical scheme, the integrated water pump (2) is a handheld portable pump, and a lithium battery, a miniature water pump, a permanent magnet direct current motor and a water inlet filter are integrated inside the integrated water pump; the integrated water pump (2) is provided with a pipeline interface and a circuit interface, is connected with the water suction pipeline (1) and the water delivery pipeline (3) through the pipeline interface, and is connected with the controller (5) through a cable.
In the technical scheme, the controller (5) is connected with the display (6).
In the technical scheme, the water outlet end at the lower end of the stern shaft tube sealing device (10) comprises a water outlet at the lower end of the stern shaft tube sealing device (10) and a water leakage collecting port, and the sewage collecting pipeline (7) is respectively butted with the water outlet at the water outlet end and the water leakage collecting port through a funnel.
A dredging method for a stern shaft tube sealing device is characterized in that the dredging device for the stern shaft tube sealing device is used, and comprises the following steps:
s1: the air tire repair seal of the stern shaft tube sealing device is opened through an air system in the cabin, so that the isolation of the environment in the cavity of the stern shaft tube sealing device from the external seawater environment is realized;
s2: opening an upper tool choke plug of the stern shaft tube sealing device to expose an upper tool hole, and communicating a lower sewage collecting pipeline of the stern shaft tube sealing device;
s3: the integrated water pump communicates the water suction pipeline with the fresh water cabin or the fresh water tank through the quick connector, communicates with the extension type spray head through the water delivery pipeline, and is connected with the controller and the display through the cable connector;
s4: turning on an integrated water pump power supply, feeding the extension-type nozzle into the stern shaft tube sealing device through the upper tool hole, and observing the internal environment of the device through the camera;
s5: starting jet flow water spraying through a controller, and switching a spray washing mode of the extension type spray head according to the condition; the rotary extension type spray head carries out jet flow cleaning on the inner part of the stern shaft tube sealing device in all directions, and desilting is carried out on the inner cavity of the stern shaft tube sealing device;
s6: and after the cleaning is finished, the extending-in type spray head is withdrawn, and the stern shaft tube sealing device is recovered.
According to the dredging device and method for the stern shaft tube sealing device, the integrated water pump sucks fresh water from the fresh water cabin through the water suction pipeline, the fresh water is conveyed to the extension type spray head through the water conveying pipeline after being pressurized, the interior of the stern shaft tube sealing device is subjected to jet flow cleaning through the extension type spray head, and dirty water doped with silt and water scales is recycled to the sewage cabin through the sewage collecting pipeline, so that the cavity of the stern shaft tube sealing device is cleaned.
The integrated water pump is portable handheld equipment, is light and handy in structure and convenient to carry and operate; the interior of the water purifier is integrated with a lithium battery, a micro water pump, a permanent magnet direct current motor, a water inlet filter and the like. The motor is powered by the lithium battery without an external power supply; the water inlet filter can filter impurities sucked into fresh water, so that the water quality is ensured to be clean; the water pump is provided with a pipeline interface and a circuit interface, is connected with the water suction pipeline and the water delivery pipeline through the pipeline interface, and is connected with the controller through a cable, so that the functions of integrated water suction, filtration, pressurization, spraying, brushing, cleaning and the like are realized.
The stretching-in type nozzle is a three-in-one multifunctional nozzle, can stretch into the inside of the stern shaft tube sealing device, and has three spray washing modes of 0 degree, 30 degree sector washing and high-flow sludge washing modes. The fan-shaped spray washing modes of 0 degree and 30 degrees can realize local low-flow jet flow spray brushing of the device and cleaning accumulated silt and attached scale in the device; the high-flow sludge scouring mode can quickly carry away dirt such as washed silt, water scale, marine life and the like from the inner cavity of the device, so that the dirt is prevented from being secondarily deposited in the inner cavity.
Meanwhile, the extension-type nozzle is a rotatable or bent nozzle, and after the extension-type nozzle is extended to a preset position, the 360-degree rotation of the nozzle can be realized through the controller, so that the jet flow cleaning is carried out on the inner part of the stern shaft tube sealing device in all directions.
The integrated high-definition endoscope head on the stretching-in type spray head is provided with an adjustable LED lamp and a high-definition automatic focusing camera, and the camera head has a waterproof function, can be used for fixed-point observation, video recording and shooting of the internal structure of the sealing device, and is convenient for fixed-point cleaning of a local dirty area. The spray head has three spray washing modes, functions of local jet spray washing, overall washing and the like can be realized, the spray head can rotate in 360 degrees in all directions for jet spray washing, the high-definition endoscope head is integrated with the spray head, and visible spray washing is realized.
The controller is used for controlling the device in an integrated way through functions: controlling the water pressure and flow of fresh water sucked by the integrated water pump; controlling the switching of the spray heads of the extension-type spray heads; controlling the bending and rotating direction of the stretching-in type spray head; and controlling the operations of lamplight brightness, focusing, video recording, shooting and the like of the high-definition camera on the stretching-in type spray head.
The display displays the operation condition of the controller in real time and displays or plays back the picture shot by the camera.
The invention has the beneficial effects that:
the dredging device for the stern shaft tube sealing device aims at the defect that the traditional stern shaft tube sealing device is easy to generate sediment accumulation, realizes dredging in the stern shaft tube sealing device during the daily maintenance of a ship berthing wharf, utilizes clean fresh water and a sealing device cooling water interface, utilizes a high-pressure water jet technology to clean the internal structure of the stern shaft tube sealing device, cleans sediment accumulated among a mechanical sealing component, a spring and a key structure, and cleans scale, marine organisms and the like attached to the surface, so that the cavity of the stern shaft tube sealing device is cleaned, the internal structure is in a good matching state, and the long-term reliable and effective use of the sealing device is ensured.
Drawings
FIG. 1 is a schematic diagram of a dredging apparatus for a stern tube sealing apparatus according to an embodiment of the present invention.
FIG. 2 is a partial view of the reach-in sprayer of the present invention.
The reference numbers in the figures correspond to the following: the device comprises a water suction pipeline 1, an integrated water pump 2, a water delivery pipeline 3, an extension type spray head 4, a controller 5, a display 6, a sewage collecting pipeline 7, a fresh water cabin or a fresh water tank 8, a sewage tank 9 and a stern shaft tube sealing device 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
The dredging device for the stern shaft tube sealing device implemented according to the invention is shown in attached figures 1 and 2, and mainly comprises: the device comprises a water suction pipeline 1, an integrated water pump 2, a water delivery pipeline 3, an extension type spray head 4, a controller 5, a display 6, a sewage collecting pipeline 7, a fresh water cabin or fresh water tank 8 and a sewage tank 9.
The integrated water pump 2 is communicated with a fresh water cabin or a fresh water tank 8 through a water suction pipeline 1, connected with a stretching-in type spray head 4 through a water delivery pipeline 3, and connected with a controller 5, a display 6 and the stretching-in type spray head 4 through cables. The stretching-in type nozzle 4 stretches into the device from a water inlet at the upper end of the stern shaft tube sealing device 10 or an upper tool hole 101, and the funnel 71 at the end of the sewage collecting pipeline 7 collects sewage flowing out of a water outlet 102 at the lower end of the stern shaft tube sealing device 10 and a water leakage collecting port 103.
The integrated water pump 2 is a portable handheld device, is light and handy in structure and convenient to carry and operate; the integrated water pump 2 is internally integrated with a lithium battery, a micro water pump, a permanent magnet direct current motor and a water inlet filter. The permanent magnet direct current motor is powered by the lithium battery, and an external power supply is not needed; the water inlet filter can filter impurities sucked into fresh water, so that the water quality is ensured to be clean; the water pump is provided with a pipeline interface and a circuit interface, is connected with the water suction pipeline 1 and the water delivery pipeline 3 through the pipeline interfaces, and is connected with the controller 5 through a cable, so that the functions of water suction, filtration, pressurization, spraying, cleaning and the like are realized integrally.
As shown in fig. 2, the retractable nozzle 4 is a three-in-one nozzle body formed by 2-3 multifunctional nozzles 41 (preferably 3), the retractable nozzle 4 can extend into the inner cavity of the stern tube sealing device 10, and has three spray modes (all are spray angles) of 0-degree spray, 30-degree sector spray and shower spray. The 0-degree spray washing and 30-degree fan-shaped spray washing modes can realize local low-flow jet flow spray brushing of the device and wash accumulated silt and attached scale in the stern shaft tube sealing device 10; the high flow sludge scouring mode can rapidly bring washed mud, scale, marine life and other dirt away from the inner cavity of the stern shaft tube sealing device 10, and prevent the dirt from being secondarily deposited in the inner cavity. The stretching-in type nozzle 4 is a rotatable nozzle, and can rotate 360 degrees through the controller 5 after stretching to the preset position of the inner cavity of the stern shaft tube sealing device 10, so as to perform jet cleaning on each direction in the stern shaft tube sealing device 10. Stretch into integration high definition endoscope head on formula shower nozzle 4, from taking adjustable LED lamp and high definition auto focus's camera, the camera lens possesses waterproof function, can carry out fixed point observation, video recording, shooting to stern shaft tube sealing device 10's inner chamber inner structure, is convenient for wash fixed point to local dirty region.
The controller 5 integrates the control of the device in all directions: controlling the water pressure and flow of fresh water sucked by the integrated water pump 2; controlling the switching of the spray heads of the stretching-in spray head 4; controlling the bending and rotating direction of the stretching-in type spray head 4; and controlling the operations of light brightness, focusing, video recording, shooting and the like of the high-definition camera on the stretching-in type spray head 4.
The display 6 displays the operation of the controller 5 in real time, and displays or plays back the picture taken by the camera.
The device is a handheld device, can be used for dredging the inside of the stern shaft tube sealing device 10 during the docking period of a ship, and has the following specific operation steps:
s1: the air tire repair sealing of the stern shaft tube sealing device 10 is opened through an air system in the cabin, so that the isolation of the environment in the cavity of the stern shaft tube sealing device 10 from the external seawater environment is realized;
s2: opening the upper tool choke plug of the stern shaft tube sealing device 10 to expose the upper tool hole 101, and communicating the lower sewage collecting pipeline 7 of the stern shaft tube sealing device 10;
s3: the integrated water pump 2 is used for communicating the water suction pipeline 1 with a fresh water cabin or a fresh water tank 8 through a quick connector, communicating with the stretching-in type spray head 4 through a water delivery pipeline 3, and connecting with the controller 5 and the display 6 through a cable connector;
s4: turning on a power supply of the integrated water pump 2, feeding the extension-type nozzle 4 into the stern shaft tube sealing device through the upper tool hole 101, and observing the internal environment of the device through the camera;
s5: the controller starts jet flow water spraying, and the spray washing mode of the stretching-in type spray head 4 is switched according to the situation; the rotary extension-type nozzle 4 carries out jet flow cleaning on the inner part of the stern shaft tube sealing device 10 in all directions, and desilts the inner cavity of the stern shaft tube sealing device 10;
s6: and after the cleaning is finished, the stretching-in type spray head 4 is withdrawn, and the stern shaft tube sealing device 10 is recovered.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A dredging device for a stern shaft tube sealing device is characterized by comprising an integrated water pump (2) and a stretching-in type spray head (4) capable of stretching into an inner cavity of the stern shaft tube sealing device, wherein the stretching-in type spray head (4) is connected with the integrated water pump (2) through a water feeding pipeline (3), and a water inlet end of the integrated water pump (2) is communicated with a fresh water cabin (8) through a water suction pipeline (1); the device also comprises a sewage collecting pipeline (7) which is in butt joint with the water outlet end at the lower end of the stern shaft tube sealing device (10), and the outlet of the sewage collecting pipeline (7) is communicated with a sewage tank (9).
2. The dredging device for the stern tube sealing device according to claim 1, wherein the retractable nozzle (4) comprises 2-3 nozzles, and the nozzles can be rotated and/or bent integrally or respectively to enable the jet flow direction to face different positions of the inner cavity of the stern tube sealing device (10).
3. The desilting device for the stern tube sealing device according to claim 1, wherein the water spray of each nozzle of the extension nozzle (4) has three shapes of 0 °, 30 ° sector and shower head, corresponding to three spray modes.
4. The desilting device for the stern tube sealing device according to claim 1, characterized in that the retractable nozzle (4) is integrated with a high-definition endoscope head for acquiring images and/or video of the lumen of the stern tube sealing device (10).
5. The desilting device for the stern tube sealing device according to claim 1 or 4, wherein the controller (5) is connected with the retractable nozzle (4) to control the bending and/or rotating direction of the retractable nozzle (4) and the lighting, focusing, video recording and shooting operations of the endoscope head.
6. The dredging device for stern tube sealing device according to claim 1, wherein the nozzle (4) is extended from the inlet of the upper end of the stern tube sealing device into the inside of the stern tube sealing device.
7. The desilting device for the stern tube sealing device according to claim 1, wherein the integrated water pump (2) is a hand-held portable pump, and a lithium battery, a miniature water pump, a permanent magnet direct current motor and a water inlet filter are integrated inside the integrated water pump; the integrated water pump (2) is provided with a pipeline interface and a circuit interface, is connected with the water suction pipeline (1) and the water delivery pipeline (3) through the pipeline interface, and is connected with the controller (5) through a cable.
8. The de-silting device for a stern tube sealing device as defined in claim 1, wherein the controller (5) is connected to the display (6).
9. The dredging device for the stern tube sealing device according to claim 1, wherein the water outlet end of the lower end of the stern tube sealing device (10) comprises a water outlet and a water leakage collecting port of the lower end of the stern tube sealing device (10), and the sewage collecting pipeline (7) is respectively butted with the water outlet and the water leakage collecting port of the water outlet end through a funnel.
10. A method of dredging a stern tube sealing device, using the dredging device for a stern tube sealing device according to any one of claims 1 to 9, comprising the steps of:
s1: the air tire repair seal of the stern shaft tube sealing device is opened through an air system in the cabin, so that the isolation of the environment in the cavity of the stern shaft tube sealing device from the external seawater environment is realized;
s2: opening an upper tool choke plug of the stern shaft tube sealing device to expose an upper tool hole, and communicating a lower sewage collecting pipeline of the stern shaft tube sealing device;
s3: the integrated water pump communicates the water suction pipeline with the fresh water cabin or the fresh water tank through the quick connector, communicates with the extension type spray head through the water delivery pipeline, and is connected with the controller and the display through the cable connector;
s4: turning on an integrated water pump power supply, feeding the extension-type nozzle into the stern shaft tube sealing device through the upper tool hole, and observing the internal environment of the device through the camera;
s5: starting jet flow water spraying through a controller, and switching a spray washing mode of the extension type spray head according to the condition; the rotary extension type spray head carries out jet flow cleaning on the inner part of the stern shaft tube sealing device in all directions, and desilting is carried out on the inner cavity of the stern shaft tube sealing device;
s6: and after the cleaning is finished, the extending-in type spray head is withdrawn, and the stern shaft tube sealing device is recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334441.7A CN112570348B (en) | 2020-11-25 | 2020-11-25 | Desilting device and desilting method for stern shaft tube sealing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011334441.7A CN112570348B (en) | 2020-11-25 | 2020-11-25 | Desilting device and desilting method for stern shaft tube sealing device |
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| CN112570348A true CN112570348A (en) | 2021-03-30 |
| CN112570348B CN112570348B (en) | 2022-09-16 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3472451A (en) * | 1968-01-19 | 1969-10-14 | Butterworth System Inc | Tank washing apparatus |
| JP2005152782A (en) * | 2003-11-26 | 2005-06-16 | Noritekku:Kk | Cleaning method of tank inside |
| CN2764508Y (en) * | 2005-01-28 | 2006-03-15 | 云南昆船设计研究院 | Tank cleaning device |
| CN101823058A (en) * | 2009-12-28 | 2010-09-08 | 福州科理技术开发有限公司 | Disassembly-free cleaning technique of central air conditioner fan coil tube |
| CN102357492A (en) * | 2011-07-25 | 2012-02-22 | 中国石油集团渤海石油装备制造有限公司 | Spinning purging device for inner wall of steel pipe |
| CN202933905U (en) * | 2012-03-22 | 2013-05-15 | 杉野机械股份有限公司 | Cleaning device in tank |
| CN104226653A (en) * | 2013-06-17 | 2014-12-24 | 洪圣涛 | Air conditioner duct cleaning system |
| CN109013601A (en) * | 2017-06-09 | 2018-12-18 | 中国石油天然气股份有限公司 | Desilting system and dredging method |
| CN109127596A (en) * | 2018-10-23 | 2019-01-04 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Dredging system and dredging method for tunneling drain |
| CN208373768U (en) * | 2018-03-30 | 2019-01-15 | 北京生态岛科技有限责任公司 | A kind of cleaning system of mercurous oil sump |
-
2020
- 2020-11-25 CN CN202011334441.7A patent/CN112570348B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3472451A (en) * | 1968-01-19 | 1969-10-14 | Butterworth System Inc | Tank washing apparatus |
| JP2005152782A (en) * | 2003-11-26 | 2005-06-16 | Noritekku:Kk | Cleaning method of tank inside |
| CN2764508Y (en) * | 2005-01-28 | 2006-03-15 | 云南昆船设计研究院 | Tank cleaning device |
| CN101823058A (en) * | 2009-12-28 | 2010-09-08 | 福州科理技术开发有限公司 | Disassembly-free cleaning technique of central air conditioner fan coil tube |
| CN102357492A (en) * | 2011-07-25 | 2012-02-22 | 中国石油集团渤海石油装备制造有限公司 | Spinning purging device for inner wall of steel pipe |
| CN202933905U (en) * | 2012-03-22 | 2013-05-15 | 杉野机械股份有限公司 | Cleaning device in tank |
| CN104226653A (en) * | 2013-06-17 | 2014-12-24 | 洪圣涛 | Air conditioner duct cleaning system |
| CN109013601A (en) * | 2017-06-09 | 2018-12-18 | 中国石油天然气股份有限公司 | Desilting system and dredging method |
| CN208373768U (en) * | 2018-03-30 | 2019-01-15 | 北京生态岛科技有限责任公司 | A kind of cleaning system of mercurous oil sump |
| CN109127596A (en) * | 2018-10-23 | 2019-01-04 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Dredging system and dredging method for tunneling drain |
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