JP3923930B2 - Tank cleaning device - Google Patents
Tank cleaning device Download PDFInfo
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- JP3923930B2 JP3923930B2 JP2003315250A JP2003315250A JP3923930B2 JP 3923930 B2 JP3923930 B2 JP 3923930B2 JP 2003315250 A JP2003315250 A JP 2003315250A JP 2003315250 A JP2003315250 A JP 2003315250A JP 3923930 B2 JP3923930 B2 JP 3923930B2
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- cleaning device
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- 238000004140 cleaning Methods 0.000 title claims description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
本発明は、タンククリーニング装置に関する。タンカーは一航海ごとに、タンク内に異なる種類の積荷(石油製成油、医薬品及び動植物の食物油など)を積み込むことがあり、そのように積荷が変われば、タンク内を洗浄しなければならない(非特許文献1)。本発明は、このようなタンカーのタンク内を洗浄するタンククリーニング装置に関する。 The present invention relates to a tank cleaning device. Tankers may load different types of cargo (petroleum oil, pharmaceuticals, animal and plant food oils, etc.) into the tank on each voyage, and if the load changes, the tank must be cleaned. (Non-Patent Document 1). The present invention relates to a tank cleaning apparatus for cleaning the inside of a tank of such a tanker.
タンカーのタンクは船体中に区画して複数カ所設けられるが、図4に示すように、各タンクTの側壁は、波板状の隔壁Wで囲まれている。タンク内を洗浄する場合は、平坦な天面や底面だけでなく、波板状の隔壁も完全に洗浄しなければならないため、隔壁Wの傾斜面にも洗浄水を有効に噴射しなければならない。このため、クリーニング装置Cの設置位置は、隔壁Wの全ての面に有効に洗浄水を噴射しうる数カ所に必然的に決められてしまう。図4中の符号Cはそのような設置位置を示している。 The tanker tanks are divided into a hull and provided at a plurality of locations. As shown in FIG. 4, the side walls of the tanks T are surrounded by corrugated partition walls W. When cleaning the inside of the tank, not only the flat top and bottom surfaces, but also the corrugated partition walls must be cleaned completely, so the cleaning water must be effectively sprayed onto the inclined surfaces of the partition walls W. . For this reason, the installation positions of the cleaning device C are inevitably determined at several places where the cleaning water can be effectively sprayed on all surfaces of the partition wall W. A symbol C in FIG. 4 indicates such an installation position.
ところで、クリーニング装置Cの従来例は、つぎのように構成されている。
図5において、1はタンク上面の上甲板、2はマンホール状の架台である。クリーニング装置Cは、架台2上に着脱自在に取付けられる駆動部10とタンクT内に挿入される洗浄部20とからなる。駆動部10の取水パイプ18に水が供給されると、その水流が連結筒21を通って下方に送られ、噴射ノズル23を水平軸まわりに回転させながら、複数個のノズル口から洗浄水を噴射させる。この噴射洗浄水によりタンク内壁面が洗浄される。同時に、噴射ノズル23が支持された旋回筒22が垂直軸まわりに旋回するので、タンク内壁面が1ヵ所だけでなく、360°全周にわたって洗浄されることになる。
Incidentally, the conventional example of the cleaning device C is configured as follows.
In FIG. 5, 1 is an upper deck of the tank upper surface, and 2 is a manhole-shaped mount. The cleaning device C includes a drive unit 10 that is detachably mounted on the gantry 2 and a cleaning unit 20 that is inserted into the tank T. When water is supplied to the intake pipe 18 of the drive unit 10, the water flow is sent downward through the connecting cylinder 21, and the cleaning water is supplied from a plurality of nozzle ports while rotating the injection nozzle 23 around the horizontal axis. Let spray. The inner wall surface of the tank is cleaned with this jet cleaning water. At the same time, the swivel cylinder 22 on which the injection nozzle 23 is supported revolves around the vertical axis, so that the tank inner wall surface is cleaned not only at one place but also around 360 °.
ところで、上記従来例には、つぎのような問題がある。
図6において、3はタンクTの底板である内底板、4は外板である。5は上甲板1の上面に配設されているパイプやグレーチング等の艤装品である。
クリーニング装置CはタンクTの隔壁の傾斜面も完全に洗浄しなければならないことから、水平面内の設置位置が固定化されるので、その上面にパイプやグレーチング等の艤装品5が存在することがある。この場合、クリーニング装置Cの保守点検のため、上方に抜出すことを考慮すると、クリーニング装置Cの長さを短くしなければならない。そうすると、クリーニング装置Cの噴射ノズル23の位置は、タンクT内の上面から略1/3位になり、タンクTの底面3には遠くなる。このため、タンク下方の洗浄力が弱くなる。
また、いくらクリーニング装置Cの長さが短くても、上甲板1と艤装品5との間隔CHよりは長いので、クリーニング装置Cを上方に抜出す作業には、困難が伴う。あるいは、これを回避しようとすれば、パイプやグレーチングを迂回させることになるが、そうすると他の艤装品と干渉したり、パイプ内の輸送抵抗が大きくなる等の問題が生じる。
Incidentally, the above conventional example has the following problems.
In FIG. 6, 3 is an inner bottom plate which is a bottom plate of the tank T, and 4 is an outer plate. Reference numeral 5 denotes fittings such as pipes and gratings disposed on the upper surface of the upper deck 1.
Since the cleaning device C must also clean the inclined surface of the partition wall of the tank T, the installation position in the horizontal plane is fixed, so that fittings 5 such as pipes and gratings may be present on the upper surface. is there. In this case, the length of the cleaning device C must be shortened considering that the cleaning device C is pulled upward for maintenance and inspection. Then, the position of the spray nozzle 23 of the cleaning device C is about 1/3 from the top surface in the tank T, and is far from the bottom surface 3 of the tank T. For this reason, the cleaning power below the tank is weakened.
Further, no matter how short the cleaning device C is, it is longer than the distance CH between the upper deck 1 and the fitting 5, so that it is difficult to extract the cleaning device C upward. Or if it tries to avoid this, a pipe and grating will be detoured, but if it does so, problems, such as interfering with other fittings and the increase in transport resistance in a pipe, will arise.
本発明は上記事情に鑑み、上甲板上の艤装品と干渉することなくタンクから抜出せ、かつタンク内に深く挿入して隅々まで有効に水噴射できるタンクのクリーニング装置を提供することを目的とする。 SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has an object to provide a tank cleaning device that can be removed from a tank without interfering with the fittings on the upper deck, and can be inserted deeply into the tank and effectively sprayed water to every corner. And
第1発明のタンククリーニング装置は、タンカーの上甲板から一定間隔をあけた上方にパイプおよびグレーチングを含む艤装品が配設されており、前記上甲板の下方には波板状の隔壁で形成されたタンクが設けられており、前記波板状の隔壁の傾斜面も含む全面に洗浄水を噴射できる位置にタンククリーニング装置を設置するため、前記上甲板の特定の位置に架台が設けられているタンカーにおいて、前記タンククリーニング装置は、前記架台に着脱自在に取付けられる駆動部と、前記タンク内に挿入される洗浄部とからなり、前記洗浄部は、長尺円筒状の連結筒と、該連結筒の下端に垂直軸まわりに旋回自在に取付けられた旋回筒と、該旋回筒に水平軸まわりに回転自在に取付けられた噴射ノズルとからなり、前記連結筒は、軸方向に2以上に分割可能であり、前記駆動部は、前記旋回筒に取付けられた旋回軸と、該旋回軸を回転させる旋回機構とを備えており、前記旋回機構と前記旋回軸は分離可能であり、前記旋回軸は2以上に分割可能であることを特徴とする。 In the tank cleaning device according to the first aspect of the present invention, fittings including pipes and gratings are disposed above the upper deck of the tanker at a predetermined interval, and are formed with corrugated partition walls below the upper deck. In order to install the tank cleaning device at a position where the cleaning water can be sprayed on the entire surface including the inclined surface of the corrugated partition wall, a pedestal is provided at a specific position on the upper deck. in tankers, the tank cleaning device is provided with attachable be driven portion detachably attached to the frame, made from the cleaning unit and which is inserted into the tank, the cleaning unit includes an elongated cylindrical coupling tube, the connecting The swivel tube is attached to the lower end of the tube so as to be rotatable around a vertical axis, and the injection nozzle is attached to the swivel tube so as to be rotatable around a horizontal axis. In a dividable, the drive unit includes a pivot shaft attached to said swivel tube, and a turning mechanism for rotating the revolving shaft, wherein the pivot axis and the pivot mechanism is separable, the The pivot axis can be divided into two or more .
本発明によれば、駆動部を架台から外し、上甲板上に引き出しながら、連結筒を分離し、また旋回機構を旋回軸から分離し、旋回軸自体も分離していくことにより、段階的に洗浄部をタンク内から出していける。したがって、各段階の引き上げ量は少なくてすむので、上甲板上面の艤装品と干渉することがない。よって、艤装品との干渉を考慮せず、タンククリーニング装置の設置位置を決められるので、少ない設置数で、有効にタンク洗浄が行える。また、洗浄部の長さを引き抜きの都合で制約されないので、タンク内洗浄に最適の長さに延長でき、洗浄効果を高めることもできる。 According to the present invention, the drive unit is removed from the gantry and pulled out on the upper deck, and the connecting cylinder is separated , the turning mechanism is separated from the turning shaft, and the turning shaft itself is also separated step by step. that go out the cleaning section from the tank. Therefore, the amount of pulling up at each stage is small, so that there is no interference with the fittings on the upper surface of the upper deck. Therefore, since the installation position of the tank cleaning device can be determined without considering the interference with the equipment, tank cleaning can be performed effectively with a small number of installations. Further, since it is not constrained to the length of the cleaning unit on account of withdrawal, be extended to the optimum length to the tank cleaning may also enhance the cleaning effect.
つぎに、本発明の実施形態を図面に基づき説明する。
図1は、本発明の第1実施形態に係るクリーニング装置Cの説明図である。
同図において、1はタンク上面の上甲板、2はマンホール状の架台である。クリーニング装置Cは、架台2に着脱自在に取付けられる駆動部10とタンク内に挿入される洗浄部20とからなる。
前記駆動部10は、ケーシング11とギヤボックス12とからなり、ギヤボックス12中には減速歯車列13からなる旋回機構が入れられている。そして、入側の歯車の回転軸14と、出側の歯車の回転軸15はケーシング11側に突出しており、前者の回転軸14にはインペラ16が取付けられており、後者の回転軸15にはカップリング17が取付けられている。ケーシング11には取水パイプ18が形成されて、外部から洗浄水が導入されるようになっている。取水パイプ18はケーシング11内で2本の通路に分かれており、一方の通路には前記インペラ16が挿入されており、他方の通路には開閉弁19が介装されている。
Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram of a cleaning apparatus C according to the first embodiment of the present invention.
In the figure, 1 is an upper deck of the tank upper surface, and 2 is a manhole-shaped mount. The cleaning device C includes a drive unit 10 that is detachably attached to the gantry 2 and a cleaning unit 20 that is inserted into the tank.
The drive unit 10 includes a casing 11 and a gear box 12, and a turning mechanism including a reduction gear train 13 is placed in the gear box 12. Then, the rotating shaft 14 of the input side gear and the rotating shaft 15 of the output side gear protrude to the casing 11 side, and an impeller 16 is attached to the former rotating shaft 14. A coupling 17 is attached. A water intake pipe 18 is formed in the casing 11 so that cleaning water is introduced from the outside. The intake pipe 18 is divided into two passages in the casing 11, the impeller 16 is inserted into one passage, and an opening / closing valve 19 is interposed in the other passage.
前記洗浄部20は、長尺円筒状の連結筒21と、その下端に回転自在に結合された旋回筒22と、その旋回筒22の前端で回転する噴射ノズル23とからなる。連結筒21の上端には大径フランジ21f が形成されており、この大径フランジ21f が架台2上にボルト等で着脱自在に取付けられている。またケーシング11の下端は、連結筒21の大径フランジ21f にボルト等で着脱自在に結合されている。そして、連結筒21の下端に取付けられた旋回筒22には、旋回軸24が取付けられている。この旋回軸24の上端は、前記ギヤボックス12から延びた回転軸15にカップリング17を介して連結されている。噴射ノズル23は連結筒21内と旋回筒22内を通ってきた水流によって旋回しながら、その先端から水を放射状に噴射するものである。 The cleaning unit 20 includes a long cylindrical connecting cylinder 21, a revolving cylinder 22 rotatably coupled to the lower end thereof, and an injection nozzle 23 that rotates at the front end of the revolving cylinder 22. A large-diameter flange 21f is formed at the upper end of the connecting cylinder 21, and the large-diameter flange 21f is detachably attached to the mount 2 with bolts or the like. The lower end of the casing 11 is detachably coupled to the large-diameter flange 21f of the connecting cylinder 21 with a bolt or the like. A turning shaft 24 is attached to the turning cylinder 22 attached to the lower end of the connecting cylinder 21. The upper end of the turning shaft 24 is connected to a rotating shaft 15 extending from the gear box 12 via a coupling 17. The spray nozzle 23 sprays water radially from the tip of the spray nozzle 23 while swirling by the water flow that has passed through the connecting tube 21 and the swivel tube 22.
前記駆動部10の取水パイプ18から水が供給されるとインペラ16が回転し、その回転が歯車列13を介して旋回軸24を回転させ、旋回筒22を垂直軸まわりで回転させる。
一方、開閉弁19を経て、ケーシング11から連結筒21の内部を経て旋回筒22の内部へ供給された水は、噴射ノズル23を水平軸まわりで回転させながら、ノズル口から水流を噴射する。この噴射水は垂直面内で放射状に飛び、かつ噴射方向が旋回筒22により360°連続変化するので、タンクTの隔壁Wや底面、天面を洗浄することができる。また、この噴射水は水平面内でも旋回するので、タンクT内の全面を洗浄することができる。
When water is supplied from the intake pipe 18 of the drive unit 10, the impeller 16 rotates, and the rotation rotates the swivel shaft 24 via the gear train 13 and the swivel cylinder 22 rotates around the vertical axis.
On the other hand, the water supplied from the casing 11 to the inside of the swivel cylinder 22 via the opening / closing valve 19 and the inside of the connecting cylinder 21 injects a water flow from the nozzle opening while rotating the injection nozzle 23 around the horizontal axis. The jet water radiates radially in the vertical plane, and the jet direction continuously changes by 360 ° by the swivel cylinder 22, so that the partition wall W, the bottom surface, and the top surface of the tank T can be washed. Further, since the jet water swirls in a horizontal plane, the entire surface in the tank T can be washed.
本実施形態の特徴は、連結筒21と旋回軸24を軸方向に分割可能に結合した点に存する。そこで、この点を以下に詳述する。
図1に示す実施形態では、前記連結筒21は、3個の筒体21A,21B,21C からなり、各筒体はフランジ26で着脱自在に結合されている。なお、上端の筒体21A の上端には前記大径フランジ21f が形成されている。また、下端の筒体21C には旋回筒22がフランジ26で着脱自在に結合されている。
The feature of this embodiment resides in that the connecting cylinder 21 and the turning shaft 24 are coupled so as to be split in the axial direction. Therefore, this point will be described in detail below.
In the embodiment shown in FIG. 1, the connecting cylinder 21 includes three cylinders 21A, 21B, and 21C, and each cylinder is detachably coupled by a flange 26. The large diameter flange 21f is formed at the upper end of the upper end cylindrical body 21A. In addition, a revolving cylinder 22 is detachably coupled to the lower end cylinder 21C by a flange 26.
前記旋回軸24も、3本の軸体24A,24B,24C からなり、各軸体はピン27で着脱自在に結合されている。なお、上端の軸体24A は既述のごとく、ギヤボックス12から下方に出ている回転軸15にカップリング17で着脱自在に連結され、下端の軸体24C は旋回筒22の取付軸28に着脱自在に連結されている。 The pivot shaft 24 is also composed of three shaft bodies 24A, 24B, 24C, and each shaft body is detachably coupled by a pin 27. As described above, the upper end shaft body 24A is detachably connected to the rotary shaft 15 protruding downward from the gear box 12 by the coupling 17, and the lower end shaft body 24C is connected to the mounting shaft 28 of the swivel cylinder 22. Removably connected.
図2は、第1実施形態に係るクリーニング装置Cの分離抜出し作業の説明図である。
同図に基づき、クリーニング装置CのタンクTからの抜出し作業を説明する。
(1)駆動部10を外した状態である。
駆動部10はケーシング11を連結軸21A の大径フランジ21f から取外すことで分離できる。
また、回転軸15は、カップリング17で旋回軸24の軸体24A から切離されている。洗浄部20はタンクT内に挿入されたままである。
(2)連結筒21を再度引き上げ、上端部の筒体21A と軸体24A を切離した状態である。筒体21A はフランジで分離でき、軸体24A はピンで分離できる。
(3)連結筒21をさらに引き上げ、中間部の筒体21B と軸体24B を切離した状態である。この場合も、筒体21B はフランジで分離でき、軸体24B はピンで分離できる。
(4)最後に下端部の筒体21C と軸体24C を引き上げた状態である。旋回筒22と噴射ノズル23は一緒に引き出せばよい。
FIG. 2 is an explanatory diagram of the separation / extraction operation of the cleaning device C according to the first embodiment.
With reference to this figure, the operation of extracting the cleaning device C from the tank T will be described.
(1) The drive unit 10 is removed.
The drive unit 10 can be separated by removing the casing 11 from the large-diameter flange 21f of the connecting shaft 21A.
The rotating shaft 15 is separated from the shaft body 24A of the turning shaft 24 by a coupling 17. The cleaning unit 20 remains inserted in the tank T.
(2) The connecting cylinder 21 is pulled up again, and the cylinder 21A at the upper end and the shaft body 24A are separated. The cylinder 21A can be separated by a flange, and the shaft 24A can be separated by a pin.
(3) The connecting cylinder 21 is further pulled up, and the intermediate cylinder 21B and the shaft 24B are separated. Also in this case, the cylindrical body 21B can be separated by a flange, and the shaft body 24B can be separated by a pin.
(4) Finally, the cylinder 21C and the shaft 24C at the lower end are pulled up. The swivel cylinder 22 and the injection nozzle 23 may be pulled out together.
上記のように長尺物の連結筒21と旋回軸24を3分割できるようにしているので、クリーニング装置Cを段階的に洗浄部をタンク内から出していけ、しかも各段階の引き上げ量は少なくてすむので、上甲板上面の艤装品と干渉することがない。よって、艤装品との干渉を考慮せず、クリーニング装置の設置位置を決められるので、少ない設置数で、有効にタンク洗浄が行える。また、洗浄部の長さを引き抜きの都合で制約されないので、タンク内洗浄に最適の長さに延長でき、洗浄効果を高めることができる。 Since the long connecting cylinder 21 and the pivot shaft 24 can be divided into three parts as described above, the cleaning unit C can be taken out of the tank step by step, and the amount of lifting at each stage is small. As a result, it does not interfere with the fittings on the upper deck. Therefore, since the installation position of the cleaning device can be determined without considering interference with the fitting, tank cleaning can be performed effectively with a small number of installations. In addition, since the length of the cleaning section is not restricted by the convenience of pulling out, it can be extended to an optimum length for cleaning in the tank, and the cleaning effect can be enhanced.
図3は、本発明の第2実施形態に係るクリーニング装置Cの説明図である。
この実施形態は、連結筒21を2本の筒体21A,21C で構成し、旋回軸24を2本の軸体24A,24C で構成したものである。この実施形態においても、長尺物の連結筒21と旋回軸24を2分割して引き出せるので、前記実施形態と同様の効果を奏する。
FIG. 3 is an explanatory diagram of a cleaning device C according to the second embodiment of the present invention.
In this embodiment, the connecting cylinder 21 is constituted by two cylinders 21A and 21C, and the turning shaft 24 is constituted by two axis bodies 24A and 24C. Also in this embodiment, since the long connecting cylinder 21 and the turning shaft 24 can be pulled out in two, the same effect as the above embodiment can be obtained.
上記に連結筒21と旋回軸24を3分割した例と2分割した例を説明したが、4分割以上に構成してもよく、そのような実施形態も本発明に含まれるものである。 The example in which the connecting cylinder 21 and the turning shaft 24 are divided into three and the example in which the connecting cylinder 21 and the turning shaft 24 are divided into two parts has been described above.
本発明のクリーニング装置は、タンカーのタンク洗浄用であれば、あらゆるタンクに適用できるものである。 The cleaning device of the present invention can be applied to any tank as long as it is for tank cleaning of tankers.
10 駆動部
21 連結筒
21A,21B,21C 筒体
22 旋回筒
23 噴射ノズル
24 旋回軸
24A,24B,24C 軸体
10 Drive unit 21 Connecting cylinder
21A, 21B, 21C Cylinder 22 Swivel cylinder 23 Injection nozzle 24 Swivel axis
24A, 24B, 24C Shaft
Claims (1)
前記上甲板の下方には波板状の隔壁で形成されたタンクが設けられており、
前記波板状の隔壁の傾斜面も含む全面に洗浄水を噴射できる位置にタンククリーニング装置を設置するため、前記上甲板の特定の位置に架台が設けられているタンカーにおいて、
前記タンククリーニング装置は、前記架台に着脱自在に取付けられる駆動部と、前記タンク内に挿入される洗浄部とからなり、
前記洗浄部は、長尺円筒状の連結筒と、該連結筒の下端に垂直軸まわりに旋回自在に取付けられた旋回筒と、該旋回筒に水平軸まわりに回転自在に取付けられた噴射ノズルとからなり、
前記連結筒は、軸方向に2以上に分割可能であり、
前記駆動部は、前記旋回筒に取付けられた旋回軸と、該旋回軸を回転させる旋回機構とを備えており、
前記旋回機構と前記旋回軸は分離可能であり、前記旋回軸は2以上に分割可能である
ことを特徴とするタンククリーニング装置。 Fittings including pipes and gratings are arranged above the upper deck of the tanker at a certain interval,
Below the upper deck is provided a tank formed of corrugated partition walls,
In order to install the tank cleaning device at a position where the cleaning water can be sprayed over the entire surface including the inclined surface of the corrugated partition wall, in the tanker provided with a gantry at a specific position of the upper deck,
The tank cleaning device is composed of a drive unit which is detachably attached to the frame, the cleaning unit and which is inserted into the tank,
The cleaning section includes a long cylindrical connecting cylinder, a swiveling cylinder that is pivotally attached to a lower end of the connecting cylinder around a vertical axis, and an injection nozzle that is rotatably attached to the swiveling cylinder around a horizontal axis. And consist of
The connecting cylinder can be divided into two or more in the axial direction ;
The drive unit includes a turning shaft attached to the turning cylinder, and a turning mechanism that rotates the turning shaft,
The tank cleaning device, wherein the turning mechanism and the turning shaft are separable, and the turning shaft can be divided into two or more .
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JP2003315250A JP3923930B2 (en) | 2003-09-08 | 2003-09-08 | Tank cleaning device |
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JP2003315250A JP3923930B2 (en) | 2003-09-08 | 2003-09-08 | Tank cleaning device |
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JP3923930B2 true JP3923930B2 (en) | 2007-06-06 |
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NO20071248A (en) * | 2007-03-07 | 2008-07-14 | Lilleborg As | Procedure and device for cleaning rooms |
JP4531790B2 (en) * | 2007-05-28 | 2010-08-25 | 株式会社マステック | Tank cleaning device |
KR101052538B1 (en) * | 2008-11-25 | 2011-07-29 | 삼성중공업 주식회사 | Sediment removal device and ship having same |
CN101948003B (en) * | 2010-09-14 | 2012-04-25 | 南京信息工程大学 | Fully automatic tank washing machine |
ES2585815T3 (en) | 2012-11-08 | 2016-10-10 | Alfa Laval Corporate Ab | Liquid ejection systems with nozzle that has two outlets |
CN103770915B (en) * | 2013-03-14 | 2016-04-13 | 浙江大学 | A kind of tank washing machine with magnetic drive |
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