Method and device for hoisting ship scrubber

Abstract

The present invention relates to a method for hoisting a ship's scrubber. The method utilizes a proprietary hoisting device to hoist a ship's main engine scrubber and generator scrubber. Lifting rings on the hoisting device are selected according to the lifting point locations of the scrubber components, ensuring smooth hoisting of the scrubber components. The present invention also relates to a device for hoisting a ship's scrubber. The device comprises a steel frame structure with multiple lifting rings welded to the steel frame for hoisting the scrubber. The present invention utilizes a hoisting device to hoist the scrubber, avoiding the possibility of deflection during direct crane hoisting. The hoisting device is reusable, eliminating the need to replace the device when hoisting the main engine scrubber and generator scrubber, thereby reducing production costs and improving hoisting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and in particular to a method and device for hoisting a ship washing tower. Background Art

[0002] With increasing environmental protection requirements, many ships currently under construction are now required to be equipped with scrubbers. Container ships are equipped with main engine scrubbers and generator scrubbers. Each scrubber consists of four sections: the bottom, middle, top, and nozzle section. Each section is equipped with a lifting point.

[0003] Publication No. CN111362151A discloses a lifting mechanism for installing a chlorine scrubber, comprising a support plate with a chassis mounted on its bottom, a universal wheel mounted on the bottom of a stabilizing base, a lifting rope mounted within a self-locking spring balancer, a connector mounted at the bottom end of a traction chain, a hanging plate mounted at the bottom of the connector, and hooks mounted on both sides of the bottom of the hanging plate via second sliders. The present invention comprises a body frame mounted on the bottom, first universal wheels mounted on both sides of the bottom of the body frame, a supporting sub-frame mounted on both sides of the body frame, and second universal wheels mounted on the bottom of the supporting sub-frame, which facilitate the transfer of the control device. Furthermore, a rotating rod is mounted on the top of the lifting aluminum plate in an inlaid manner, a fixing lug is mounted on the top of the rotating rod, a guide plate is mounted on one side of the fixing lug via a connector, and a balancing frame is mounted on the top of the fixing lug. This invention is suitable for lifting chlorine scrubbers. However, the lifting mechanism, which has only two hooks, makes the various components of the scrubber unstable during lifting and inconvenient for subsequent installation.

[0004] According to the installation requirements, the lifting of the washing tower components should be as stable as possible. In the prior art, a crane is directly used to lift the washing tower. This method is prone to deflection during the lifting process of the washing tower, which is inconvenient for lifting and installing the washing tower. Summary of the Invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a method and device for hoisting a ship scrubber. The method and device of the present invention improve the hoisting efficiency of the ship scrubber and shorten the hoisting time by selecting the lifting rings on the corresponding hoisting device when hoisting different components of the main engine scrubber and the generator scrubber. At the same time, the hoisting device is reusable, reducing production costs.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A method for hoisting a ship scrubber, the ship scrubber comprising a main engine scrubber and a generator scrubber, the main engine scrubber being cylindrical in shape as a whole, comprising a bottom, a middle portion, a top, and a nozzle section, the bottom being a hollow cylinder, the middle portion being a hollow cylinder, the middle portion being mounted on the upper end of the bottom, the top being cylindrical in shape as a whole, the top being dark yellow at the upper end of the middle portion, the nozzle section being a hollow cylinder, and the nozzle section being mounted on the side of the bottom; the structure of the generator scrubber being the same as that of the main engine scrubber, the method specifically comprising the following steps:

[0008] The first step is to prepare a ship washing tower lifting device. The lifting device has an overall rectangular frame structure, and lifting rings are welded on the four corners of the upper end surface of the lifting device frame. The first vertical lifting pipe and the second vertical lifting pipe are connected inside the lifting device frame, and the first vertical lifting pipe and the second vertical lifting pipe are vertically connected to the frame on one side of the lifting device; the first vertical lifting pipe and the second vertical lifting pipe are connected between the first vertical lifting pipe and the second vertical lifting pipe, and the first horizontal lifting pipe, the second horizontal lifting pipe and the third horizontal lifting pipe are vertically connected to the first vertical lifting pipe and the second vertical lifting pipe, and the middle vertical lifting pipe is vertically connected to the middle of the first horizontal lifting pipe, the second horizontal lifting pipe and the third horizontal lifting pipe respectively, and the second horizontal lifting pipe is equidistant from the first horizontal lifting pipe and the third horizontal lifting pipe; a lifting ring A is welded on the bottom end surface of the connection between the first vertical lifting pipe and the first horizontal vertical pipe, and a lifting ring F is welded on the bottom end surface of the connection between the first vertical lifting pipe and the second horizontal vertical pipe A J lifting ring is welded below the F lifting ring on the first vertical hanging pipe, and a B lifting ring is welded to the bottom end surface of the connection between the first vertical hanging pipe and the third horizontal vertical pipe; a D lifting ring is welded to the bottom end surface of the connection between the second vertical hanging pipe and the first horizontal vertical pipe, and an H lifting ring is welded to the bottom end surface of the connection between the second vertical hanging pipe and the second horizontal vertical pipe; an L lifting ring is welded above the F lifting ring on the second vertical hanging pipe, and a C lifting ring is welded to the bottom end surface of the connection between the second vertical hanging pipe and the third horizontal vertical pipe; an E lifting ring is welded to the bottom end surface of the connection between the first horizontal hanging pipe and the middle vertical hanging pipe, and an I lifting ring is welded to the right of the E lifting ring on the first horizontal hanging pipe; an N lifting ring and a P lifting ring are respectively welded to the bottom end surfaces of both sides of the second horizontal hanging pipe; a G lifting ring is welded to the bottom end surface of the connection between the third horizontal hanging pipe and the middle vertical hanging pipe, and a K lifting ring is welded to the left of the G lifting ring on the third horizontal hanging pipe; an M lifting ring and an O lifting ring are respectively welded to the bottom end surfaces of both sides of the middle vertical hanging pipe;

[0009] The second step is to connect the crane to the four lifting rings on the upper end face of the lifting device frame; lift the lifting device;

[0010] The third step is to hoist the main engine washing tower. First, hoist the bottom of the main engine washing tower. Select the A, D, Q and R lifting rings on the hoisting device and connect them to the lifting point of the bottom of the main engine washing tower through wire ropes and shackles. Hoist the bottom of the main engine washing tower to the chimney area of ​​the ship. Then hoist the middle part of the main engine washing tower. Select the A, B, C and D lifting rings on the hoisting device and connect them to the lifting point of the middle part of the main engine washing tower through wire ropes and shackles. Hoist the middle part of the main engine washing tower above the bottom of the main engine washing tower for installation. Then hoist the main engine washing tower. When hoisting the top of the main engine washing tower, the lifting rings of the hoisting device are the same as those used for hoisting the middle part of the main engine washing tower. After connecting the lifting point of the main engine washing tower to the lifting rings with wire ropes and shackles, the top of the main engine washing tower is hoisted to the top of the middle part of the main engine washing tower for installation. Finally, hoist the nozzle section of the main engine washing tower. Select the E, F, G and H lifting rings on the hoisting device and connect them to the lifting points of the nozzle section of the main engine washing tower with wire ropes and shackles respectively. Install the nozzle section of the main engine washing tower to the bottom side of the main engine washing tower using the crane. The hoisting of the main engine washing tower is completed.

[0011] The fourth step is to hoist the bottom of the generator washing tower, select the I ring, J ring, K ring and L ring on the hoisting device to connect them with the hoisting point of the bottom of the generator washing tower through wire ropes and shackles, and hoist the bottom of the generator washing tower to the chimney area of ​​the ship; then hoist the middle part of the generator washing tower, select the E ring, F ring, G ring and H ring on the hoisting device to connect them with the hoisting point of the middle part of the generator washing tower through wire ropes, and hoist the middle part of the generator washing tower above the bottom of the generator washing tower for installation; then hoist the generator washing tower. At the top of the motor scrubber, select the same lifting rings for the hoisting device as for the middle section of the generator scrubber. Connect the lifting point on the top of the generator scrubber to the lifting rings with wire ropes and shackles. Then, hoist the top of the generator scrubber to the top of the middle section for installation. Finally, hoist the nozzle section of the generator scrubber. Select the M, N, O, and P lifting rings on the hoisting device and connect them to the lifting points of the nozzle section of the main engine scrubber with wire ropes and shackles. Use the crane to install the nozzle section of the generator scrubber to the bottom side of the generator scrubber. This completes the hoisting of the generator scrubber.

[0012] Step 5: After the main engine scrubber and generator scrubber are fully hoisted, the scrubbers of other ships will be hoisted and installed.

[0013] The positions of the lifting rings in the lifting device in the first step are distributed according to the positions of the lifting points on the main engine scrubber and the generator scrubber.

[0014] When the hoisting device in the third step above is used to lift the main washing tower, the lifting ring positions of the hoisting device are selected to correspond to the lifting points on the bottom, middle, top and nozzle section of the main washing tower, so that the bottom, middle, top and nozzle section of the main washing tower are in a horizontal state during the lifting process.

[0015] When the hoisting device in the fourth step above is used to lift the generator scrubber, the positions of the lifting rings of the hoisting device are selected to correspond to the lifting points on the bottom, middle, top and nozzle section of the generator scrubber, so that the bottom, middle, top and nozzle section of the generator scrubber are in a horizontal state during the lifting process.

[0016] The lifting device is a device for lifting a ship washing tower. The lifting device has an overall rectangular frame structure, and lifting rings are respectively welded on the four corners of the upper end surface of the lifting device frame, and a first vertical lifting tube and a second vertical lifting tube are connected inside the lifting device frame, and the first vertical lifting tube and the second vertical lifting tube are vertically connected to the frame of one side of the lifting device; a first horizontal lifting tube, a second horizontal lifting tube and a third horizontal lifting tube are connected between the first vertical lifting tube and the second vertical lifting tube, and the first horizontal lifting tube, the second horizontal lifting tube and the third horizontal lifting tube are vertically connected to the first vertical lifting tube and the second vertical lifting tube, and the middle vertical lifting tube is vertically connected to the middle of the first horizontal lifting tube, the second horizontal lifting tube and the third horizontal lifting tube respectively, and the distance between the second horizontal lifting tube and the first horizontal lifting tube and the third horizontal lifting tube is equal; a lifting ring A is welded on the bottom end surface of the connection between the first vertical lifting tube and the first horizontal vertical tube, and a lifting ring F is welded on the bottom end surface of the connection between the first vertical lifting tube and the second horizontal vertical tube A J lifting ring is welded below the F lifting ring on the first vertical hanging pipe, and a B lifting ring is welded to the bottom end surface of the connection between the first vertical hanging pipe and the third horizontal vertical pipe; a D lifting ring is welded to the bottom end surface of the connection between the second vertical hanging pipe and the first horizontal vertical pipe, and an H lifting ring is welded to the bottom end surface of the connection between the second vertical hanging pipe and the second horizontal vertical pipe; an L lifting ring is welded above the F lifting ring on the second vertical hanging pipe, and a C lifting ring is welded to the bottom end surface of the connection between the second vertical hanging pipe and the third horizontal vertical pipe; an E lifting ring is welded to the bottom end surface of the connection between the first horizontal hanging pipe and the middle vertical hanging pipe, and an I lifting ring is welded to the right of the E lifting ring on the first horizontal hanging pipe; an N lifting ring and a P lifting ring are respectively welded to the bottom end surfaces of both sides of the second horizontal hanging pipe; a G lifting ring is welded to the bottom end surface of the connection between the third horizontal hanging pipe and the middle vertical drop pipe, and a K lifting ring is welded to the left of the G lifting ring on the third horizontal hanging pipe; an M lifting ring and an O lifting ring are respectively welded to the bottom end surfaces of both sides of the middle vertical lifting ring.

[0017] The main frame of the hoisting device is made of steel pipes, which are fixed by welding. The size of the steel pipes is Φ235mm*20mm.

[0018] Based on the above scheme, the method and device of the present invention have achieved the following positive and beneficial effects through practice:

[0019] 1. The present invention installs a lifting device on a crane to lift the washing tower, thereby avoiding deflection during the direct lifting process of the crane and facilitating the lifting of the washing tower.

[0020] 2. The present invention ensures that the lifting rings on the lifting device correspond to the lifting points of the washing tower components, thereby improving the lifting efficiency of the washing tower components and shortening the lifting period while ensuring that the washing tower is not offset.

[0021] 3. The hoisting device of the present invention is reusable, and there is no need to replace the device when hoisting the main engine washing tower and the generator washing tower, which reduces production costs and improves hoisting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of a washing tower used in a method for hoisting a washing tower for a ship.

[0023] Figure 2 The present invention is a schematic diagram of the position of the bottom lifting point of the main engine washing tower in a method for lifting the ship washing tower.

[0024] Figure 3 The present invention is a schematic diagram of the position of the lifting point in the middle part of the main engine washing tower in a method for lifting the ship washing tower.

[0025] Figure 4 The present invention is a schematic diagram of the position of the lifting point on the top of the main engine washing tower in a method for lifting the ship washing tower.

[0026] Figure 5 The present invention is a schematic diagram of the positions of the lifting points of the nozzle section of the main engine washing tower in a method for lifting the ship washing tower.

[0027] Figure 6 The present invention is a schematic diagram of the position of the bottom lifting point of the generator washing tower in a method for lifting the ship washing tower.

[0028] Figure 7 The present invention is a schematic diagram of the position of the lifting point in the middle part of the generator washing tower in a method for lifting the ship washing tower.

[0029] Figure 8 The present invention is a schematic diagram of the position of the lifting point on the top of the main engine washing tower in a method for lifting the ship washing tower.

[0030] Figure 9 The present invention is a schematic diagram of the positions of the lifting points of the nozzle section of the generator scrubber in a method for lifting a ship scrubber.

[0031] Figure 10 The diagram is a schematic diagram of a hoisting device used for hoisting a ship washing tower according to the present invention.

[0032] Figure 11 The diagram is a schematic diagram of the distribution of lifting rings in a device for lifting a ship washing tower according to the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following drawings are provided to illustrate the present invention.

[0034] However, it should be understood that these descriptions are only exemplary.

[0035] In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concept of the present invention.

[0036] In the description of this application, unless otherwise expressly specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this invention can be understood according to specific circumstances.

[0037] The present invention relates to a method for hoisting a ship washing tower. Figure 1 As shown, the ship scrubber includes a main engine scrubber and a generator scrubber. The main engine scrubber is cylindrical as a whole and includes a bottom, a middle part, a top and a nozzle section. The bottom is a hollow cylinder, the middle part is a hollow cylinder, and the middle part is installed at the upper end of the bottom. The top is cylindrical as a whole, and the top is dark yellow at the upper end of the middle part. The nozzle section is a hollow cylinder and is installed on the side of the bottom. The structure of the generator scrubber is the same as that of the main engine scrubber.

[0038] like Figure 2 -like Figure 11 A method for hoisting a ship scrubber, the method specifically comprising the following steps:

[0039] The first step is to prepare a ship washing tower hoisting device. The hoisting device is a rectangular parallelepiped frame structure as a whole. The four corners of the upper end surface of the hoisting device frame are welded with lifting rings respectively. The first vertical hanging pipe 321 and the second vertical hanging pipe 322 are connected inside the hoisting device frame. The first vertical hanging pipe 321 and the second vertical hanging pipe 322 are vertically connected to the frame on one side of the hoisting device; the first horizontal hanging pipe 341, the second horizontal hanging pipe 342 and the third horizontal hanging pipe 343 are connected between the first vertical hanging pipe 321 and the second vertical hanging pipe 322. The three horizontal hanging pipes 343 are vertically connected to the first vertical hanging pipe 321 and the second vertical hanging pipe 322. The middle vertical hanging pipe 33 is vertically connected to the middle of the first horizontal hanging pipe 341, the second horizontal hanging pipe 342 and the third horizontal hanging pipe 343 respectively. The distance between the second horizontal hanging pipe 342 and the first horizontal hanging pipe 341 and the third horizontal hanging pipe 343 is equal. The bottom end surface of the connection between the first vertical hanging pipe 321 and the first horizontal vertical pipe 341 is welded with an A hanging ring 13, the bottom end surface of the connection between the first vertical hanging pipe 321 and the second horizontal vertical pipe 342 is welded with an F hanging ring 14, and the first vertical hanging pipe 321 is welded with an F hanging ring 14. A J lifting ring 15 is welded below the F lifting ring 14 on the lifting pipe 321. A B lifting ring 16 is welded to the bottom end surface of the connection between the first vertical lifting pipe 321 and the third horizontal vertical pipe 343. A D lifting ring 22 is welded to the bottom end surface of the connection between the second vertical lifting pipe 322 and the first horizontal vertical pipe 341. An H lifting ring 20 is welded to the bottom end surface of the connection between the second vertical lifting pipe 322 and the second horizontal vertical pipe 342. An L lifting ring 21 is welded above the H lifting ring on the second vertical lifting pipe 322. A C lifting ring 19 is welded to the bottom end surface of the connection between the second vertical lifting pipe 322 and the third horizontal vertical pipe 343. The E lifting ring 24 is welded to the bottom end face of the connection between the first horizontal hanging tube 341 and the middle vertical hanging tube 33, and the I lifting ring 23 is welded to the right side of the E lifting ring 24 on the first horizontal hanging tube 341; the N lifting ring 27 and the P lifting ring 26 are welded to the bottom end faces of both sides of the second horizontal hanging tube 342; the G lifting ring 30 is welded to the bottom end face of the connection between the third horizontal hanging tube 343 and the middle vertical hanging tube 33, and the K lifting ring 29 is welded to the left side of the G lifting ring 30 on the third horizontal hanging tube 343; the M lifting ring 25 and the O lifting ring 28 are welded to the bottom end faces of both sides of the middle vertical hanging tube 33; the lifting device is as follows Figure 10 As shown;

[0040] The second step is to connect the crane to the four lifting rings 31 on the upper end surface of the lifting device frame respectively; and lift the lifting device;

[0041] The third step is to hoist the main engine scrubber. First, hoist the bottom 1 of the main engine scrubber. Select the A lifting ring 13, D lifting ring 22, Q lifting ring 17 and R lifting ring 18 on the hoisting device and connect them to the lifting point 5 of the bottom 1 of the main engine scrubber through wire ropes and shackles. Then hoist the bottom 1 of the main engine scrubber to the chimney area of ​​the ship. Then hoist the middle part 2 of the main engine scrubber. Select the A lifting ring 13, B lifting ring 16, C lifting ring 19 and D lifting ring 22 on the hoisting device and connect them to the lifting point 6 of the middle part 2 of the main engine scrubber through wire ropes and shackles. Then hoist the middle part 2 of the main engine scrubber above the bottom 1 of the main engine scrubber for installation. Then hoist the top of the main engine scrubber. 3. When hoisting the top of the main washing tower, the lifting rings of the hoisting device are the same as those used for hoisting the middle part 2 of the main washing tower. After the lifting point 7 of the main washing tower top 3 is connected to the lifting ring through wire ropes and shackles, the main washing tower top 3 is hoisted to the top of the middle part 2 of the main washing tower for installation; finally, hoist the nozzle section 4 of the main washing tower, select the E lifting ring 24, F lifting ring 14, G lifting ring 30 and H lifting ring 20 on the hoisting device and connect them to the lifting point 8 of the nozzle section 4 of the main washing tower through wire ropes and shackles respectively; install the nozzle section 4 of the main washing tower to the side of the bottom 1 of the main washing tower by crane; complete the hoisting of the main washing tower; the position of the lifting rings on the hoisting device is as follows Figure 11 As shown in the figure, when the hoisting device is hoisting the main engine washing tower, the force at the hoisting point of each component of the main engine washing tower is vertically upward to ensure that the components of the main engine washing tower do not deflect during the hoisting process;

[0042] The fourth step is to hoist the generator scrubber. First, hoist the bottom 1 of the generator scrubber. Select the I hoisting ring 23, J hoisting ring 15, K hoisting ring 29 and L hoisting ring 21 on the hoisting device and connect them to the hoisting point 9 of the bottom of the generator scrubber through wire ropes and shackles, and hoist the bottom 1 of the generator scrubber to the chimney area of ​​the ship. Then hoist the middle part 2 of the generator scrubber. Select the E hoisting ring 24, F hoisting ring 14, G hoisting ring 30 and H hoisting ring 20 on the hoisting device and connect them to the hoisting point 10 of the middle part 2 of the generator scrubber through wire ropes, and hoist the middle part 2 of the generator scrubber above the bottom 1 of the generator scrubber for installation. 1. The top 3 of the washing tower is hoisted. The lifting rings of the selected lifting device are the same as those used for hoisting the middle part 2 of the generator washing tower. After the lifting point 11 of the top 3 of the generator washing tower is connected to the lifting ring through a wire rope and a shackle, the top 3 of the generator washing tower is hoisted to the top of the middle part 2 of the generator washing tower for installation. Finally, the nozzle section 4 of the generator washing tower is hoisted. The M lifting ring 25, N lifting ring 27, O lifting ring 28 and P lifting ring 26 on the lifting device are selected and connected to the lifting point 12 of the nozzle section 4 of the main washing tower through a wire rope and a shackle respectively. The nozzle section 4 of the generator washing tower is installed on the side of the bottom 1 of the generator washing tower by the crane. The hoisting of the generator washing tower is completed. The position of the lifting ring on the lifting device is as follows: Figure 11As shown, when the hoisting device is hoisting the generator washing tower, the force at the hoisting point of each component of the generator washing tower is vertically upward to ensure that the components of the generator washing tower do not deflect during the hoisting process;

[0043] Step 5: After the main engine scrubber and generator scrubber are fully hoisted, the scrubbers of other ships will be hoisted and installed.

[0044] The positions of the lifting rings in the hoisting device in the first step above are distributed according to the positions of the lifting points on the main engine scrubber and the generator scrubber. The positions of the lifting rings in the hoisting device are as follows: Figure 11 As shown, the position of the lifting ring corresponds to the position of the lifting point on the washing tower, which facilitates the lifting of various components of the washing tower and improves the lifting efficiency.

[0045] When the hoisting device in the third step above is used to hoist the main washing tower, the positions of the lifting rings of the hoisting device are selected to correspond to the lifting points on the bottom 1, middle part 2, top 3 and nozzle section 4 of the main washing tower, so that the bottom 1, middle part 2, top 3 and nozzle section 4 of the main washing tower are kept in a horizontal state during the lifting process; this improves the accuracy of the installation of various components of the main washing tower and improves the installation efficiency.

[0046] When the hoisting device in the fourth step is used to hoist the generator scrubber, the positions of the hoisting rings of the hoisting device are selected to correspond to the hoisting points on the bottom 1, middle part 2, top 3 and nozzle section 4 of the generator scrubber, so that the bottom 1, middle part 2, top 3 and nozzle section 4 of the generator scrubber are in a horizontal state during the hoisting process; the accuracy of the installation of various components of the main engine scrubber is improved, and the installation efficiency is improved.

[0047] A device for hoisting a ship washing tower, the hoisting device has an overall rectangular frame structure, and the four corners of the upper end surface of the hoisting device frame are welded with lifting rings respectively. The first vertical hanging pipe 321 and the second vertical hanging pipe 322 are connected inside the hoisting device frame, and the first vertical hanging pipe 321 and the second vertical hanging pipe 322 are vertically connected to the frame on one side of the hoisting device; the first vertical hanging pipe 321 and the second vertical hanging pipe 322 are connected between the first horizontal hanging pipe 341, the second horizontal hanging pipe 342 and the third horizontal hanging pipe 343, and the first horizontal hanging pipe 341, the second horizontal hanging pipe 342 and the third horizontal hanging pipe 343 are connected between the first vertical hanging pipe 321 and the second vertical hanging pipe 322. The horizontal hanging pipe 343 is vertically connected to the first vertical hanging pipe 321 and the second vertical hanging pipe 322. The middle vertical hanging pipe 33 is vertically connected to the middle of the first horizontal hanging pipe 341, the second horizontal hanging pipe 342 and the third horizontal hanging pipe 343 respectively. The distance between the second horizontal hanging pipe 342 and the first horizontal hanging pipe 341 and the third horizontal hanging pipe 343 is equal. The bottom end surface of the connection between the first vertical hanging pipe 321 and the first horizontal vertical pipe 341 is welded with an A hanging ring 13, and the bottom end surface of the connection between the first vertical hanging pipe 321 and the second horizontal vertical pipe 342 is welded with an F hanging ring 14. A J lifting ring 15 is welded below the F lifting ring 14 on the lifting pipe 321. A B lifting ring 16 is welded to the bottom end surface of the connection between the first vertical lifting pipe 321 and the third horizontal vertical pipe 343. A D lifting ring 22 is welded to the bottom end surface of the connection between the second vertical lifting pipe 322 and the first horizontal vertical pipe 341. An H lifting ring 20 is welded to the bottom end surface of the connection between the second vertical lifting pipe 322 and the second horizontal vertical pipe 342. An L lifting ring 21 is welded above the H lifting ring on the second vertical lifting pipe 322. A C lifting ring 19 is welded to the bottom end surface of the connection between the second vertical lifting pipe 322 and the third horizontal vertical pipe 343. The E lifting ring 24 is welded to the bottom end face of the connection between the first horizontal hanging tube 341 and the middle vertical hanging tube 33, and the I lifting ring 23 is welded to the right side of the E lifting ring 24 on the first horizontal hanging tube 341; the N lifting ring 27 and the P lifting ring 26 are welded to the bottom end faces of both sides of the second horizontal hanging tube 342; the G lifting ring 30 is welded to the bottom end face of the connection between the third horizontal hanging tube 343 and the middle vertical hanging tube 33, and the K lifting ring 29 is welded to the left side of the G lifting ring 30 on the third horizontal hanging tube 343; the M lifting ring 25 and the O lifting ring 28 are welded to the bottom end faces of both sides of the middle vertical hanging tube 33; the lifting device is as follows Figure 10 As shown, the distribution of lifting rings on the lifting device is as follows Figure 11 shown.

[0048] The main frame of the hoisting device is made of steel pipes, which are fixed by welding. The size of the steel pipes is Φ235mm*20mm, which ensures the strength of the hoisting device and improves the safety of the hoisting device.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is still in the art.

[0050] It should be understood by those skilled in the art that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the invention, which should all be included in the scope of the technical solution for which protection is requested by the invention.

Claims

1. A method for hoisting a ship scrubber, wherein the ship scrubber comprises a main engine scrubber and a generator scrubber, wherein the main engine scrubber is cylindrical in shape as a whole and comprises a bottom, a middle portion, a top portion and a nozzle section, wherein the bottom portion is hollow cylindrical, the middle portion is hollow cylindrical, the middle portion is mounted on the upper end of the bottom portion, the top portion is cylindrical in shape as a whole and is mounted on the upper end of the middle portion, the nozzle section is hollow cylindrical, and the nozzle section is mounted on the side of the bottom portion; the structure of the generator scrubber is the same as that of the main engine scrubber, and is characterized in that: The method specifically comprises the following steps: The first step is to prepare a ship washing tower lifting device. The lifting device has an overall rectangular frame structure, and lifting rings are welded on the four corners of the upper end surface of the lifting device frame. The first vertical lifting pipe and the second vertical lifting pipe are connected inside the lifting device frame. The first vertical lifting pipe and the second vertical lifting pipe are vertically connected to the frame on one side of the lifting device; the first horizontal lifting pipe, the second horizontal lifting pipe and the third horizontal lifting pipe are connected between the first vertical lifting pipe and the second vertical lifting pipe. The first horizontal lifting pipe, the second horizontal lifting pipe and the third horizontal lifting pipe are vertically connected to the first vertical lifting pipe and the second vertical lifting pipe. The middle vertical lifting pipe is vertically connected to the middle of the first horizontal lifting pipe, the second horizontal lifting pipe and the third horizontal lifting pipe respectively. The second horizontal lifting pipe is equidistant from the first horizontal lifting pipe and the third horizontal lifting pipe; a lifting ring A is welded to the bottom end surface of the connection between the first vertical lifting pipe and the first horizontal vertical pipe, and a lifting ring F is welded to the bottom end surface of the connection between the first vertical lifting pipe and the second horizontal vertical pipe. A J lifting ring is welded below the F lifting ring on the first vertical hanging pipe, and a B lifting ring is welded to the bottom end face of the connection between the first vertical hanging pipe and the third horizontal vertical pipe; a D lifting ring is welded to the bottom end face of the connection between the second vertical hanging pipe and the first horizontal vertical pipe, and an H lifting ring is welded to the bottom end face of the connection between the second vertical hanging pipe and the second horizontal vertical pipe; an L lifting ring is welded above the F lifting ring on the second vertical hanging pipe, and a C lifting ring is welded to the bottom end face of the connection between the second vertical hanging pipe and the third horizontal vertical pipe; an E lifting ring is welded to the bottom end face of the connection between the first horizontal hanging pipe and the middle vertical hanging pipe, and an I lifting ring is welded to the right side of the E lifting ring on the first horizontal hanging pipe; an N lifting ring and a P lifting ring are respectively welded to the bottom end faces of both sides of the second horizontal hanging pipe; a G lifting ring is welded to the bottom end face of the connection between the third horizontal hanging pipe and the middle vertical hanging pipe, and a K lifting ring is welded to the left side of the G lifting ring on the third horizontal hanging pipe; an M lifting ring and an O lifting ring are respectively welded to the bottom end faces of both sides of the middle vertical hanging pipe; The second step is to connect the crane to the four lifting rings on the upper end face of the lifting device frame; lift the lifting device; The third step is to hoist the main engine washing tower. First, hoist the bottom of the main engine washing tower. Select the A, D, Q and R lifting rings on the hoisting device and connect them to the lifting point of the bottom of the main engine washing tower through wire ropes and shackles. Hoist the bottom of the main engine washing tower to the chimney area of ​​the ship. Then hoist the middle part of the main engine washing tower. Select the A, B, C and D lifting rings on the hoisting device and connect them to the lifting point of the middle part of the main engine washing tower through wire ropes and shackles. Hoist the middle part of the main engine washing tower above the bottom of the main engine washing tower for installation. Then hoist the main engine washing tower. When hoisting the top of the main engine washing tower, the lifting rings of the hoisting device are the same as those used for hoisting the middle part of the main engine washing tower. After connecting the lifting point of the main engine washing tower to the lifting rings with wire ropes and shackles, the top of the main engine washing tower is hoisted to the top of the middle part of the main engine washing tower for installation. Finally, hoist the nozzle section of the main engine washing tower. Select the E, F, G and H lifting rings on the hoisting device and connect them to the lifting points of the nozzle section of the main engine washing tower with wire ropes and shackles respectively. Install the nozzle section of the main engine washing tower to the bottom side of the main engine washing tower using the crane. The hoisting of the main engine washing tower is completed. The fourth step is to hoist the bottom of the generator washing tower, select the I ring, J ring, K ring and L ring on the hoisting device to connect them with the hoisting point of the bottom of the generator washing tower through wire ropes and shackles, and hoist the bottom of the generator washing tower to the chimney area of ​​the ship; then hoist the middle part of the generator washing tower, select the E ring, F ring, G ring and H ring on the hoisting device to connect them with the hoisting point of the middle part of the generator washing tower through wire ropes, and hoist the middle part of the generator washing tower above the bottom of the generator washing tower for installation; then hoist the generator washing tower. At the top of the motor scrubber, select the same lifting rings for the hoisting device as for the middle section of the generator scrubber. Connect the lifting point on the top of the generator scrubber to the lifting rings with wire ropes and shackles. Then, hoist the top of the generator scrubber to the top of the middle section for installation. Finally, hoist the nozzle section of the generator scrubber. Select the M, N, O, and P lifting rings on the hoisting device and connect them to the lifting points of the nozzle section of the main engine scrubber with wire ropes and shackles. Use the crane to install the nozzle section of the generator scrubber to the bottom side of the generator scrubber. This completes the hoisting of the generator scrubber. Step 5: After the main engine scrubber and generator scrubber are fully hoisted, the scrubbers of other ships will be hoisted and installed.

2. The method for installing a ship washing tower according to claim 1, characterized in that: The positions of the lifting rings in the lifting device in the first step are distributed according to the positions of the lifting points on the main engine washing tower and the generator washing tower.

3. The method for installing a ship washing tower according to claim 1, characterized in that: When the hoisting device in the third step hoists the main washing tower, the positions of the hoisting rings of the hoisting device are selected to correspond to the hoisting points on the bottom, middle, top and nozzle section of the main washing tower, so that the bottom, middle, top and nozzle section of the main washing tower are in a horizontal state during the hoisting process.

4. The method for installing a ship washing tower according to claim 1, characterized in that: When the hoisting device in the fourth step hoists the generator washing tower, the positions of the hoisting rings of the hoisting device are selected to correspond to the hoisting points on the bottom, middle, top and nozzle section of the hoisting generator washing tower, so that the bottom, middle, top and nozzle section of the generator washing tower are in a horizontal state during the hoisting process.

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