Crown block exhaust fume collecting hood for shipyard

Abstract

The utility model discloses a crown block exhaust fume collecting hood for a shipyard, and belongs to the technical field of exhaust fume collecting hoods. Comprising a crown block main beam, an aluminum alloy frame exhaust fume collecting hood, an exhaust fume collecting enclosure, a first pipe set, a second pipe set, an electric pipe coiling machine and a negative pressure filtering unit, the exhaust fume collecting enclosure is composed of stacked roller shutter doors arranged at intervals, and the first pipe set comprises a first main pipe fixed to the top face of the outer side of an aluminum alloy frame body; a plurality of sub-pipes are fixed to the two sides of the first main pipe at intervals and communicate with the first main pipe. A plurality of ABS dust suction ports are formed in the sub-pipe; the second pipe group comprises a second main pipe, and a plurality of branch pipes are connected to the second main pipe at intervals; the plurality of electric pipe coiling machines are fixed on the crown block main beam at intervals; according to the crown block exhaust fume collecting hood for the shipyard, the exhaust fume collecting structure is carried on the crown block, and regional collection and fixed-point collection of welding fume are achieved.

Description

Technical Field

[0001] The utility model specifically relates to a smoke collecting hood for a shipyard overhead crane, and belongs to the technical field of smoke collecting hoods. Background Art

[0002] When a shipbuilding workshop builds a ship, there are various pollution problems in the entire construction process, among which the dust pollution problem is particularly prominent. A large amount of dust will be generated during welding, grinding and cutting. Dust pollution not only directly affects the working environment of the shipbuilding workshop, but also poses a threat to the health of workshop workers. Therefore, the dust pollution problem in the shipbuilding workshop must be given enough attention. For this reason, Chinese Patent Publication No.: CN109603394A discloses a dust removal device for a shipyard processing workshop, in which two vacuum suction devices are symmetrically arranged along the circumference on the upper side wall of a tangential double-inlet cyclone, a stop valve is arranged at the connecting end of the vacuum suction device and the tangential double-inlet cyclone, a drainage fluid inlet and a dirty air suction port are arranged at the outer end of the vacuum suction device, and the drainage fluid inlet is connected to the compressed air interface. The device has the advantages of high dust removal efficiency and low energy consumption; however, due to the large number of welding and grinding stations, it is difficult to arrange dust removal points, and welding dust still exists. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a shipyard overhead crane smoke collecting hood, which is equipped with a smoke collecting structure on the overhead crane to achieve regional collection of welding smoke and fixed-point collection of welding positions.

[0004] The utility model of the overhead crane smoke collecting hood for shipyard comprises:

[0005] A crane main beam, wherein the crane main beam is a horizontal double beam;

[0006] An aluminum alloy frame smoke hood, the aluminum alloy frame smoke hood comprises an aluminum alloy frame body, a cover plate is fixed on the top surface of the aluminum alloy frame body; a top hood can be built on the main beam of the overhead crane through the aluminum alloy frame body and the cover plate, and can be moved to various ship processing areas through the main beam of the overhead crane;

[0007] Smoke collection enclosure, the main beam of the overhead crane, the aluminum alloy frame smoke collection hood and the smoke collection enclosure form a moving area with a hollow bottom surface; the smoke collection enclosure is composed of stacking roller shutter doors arranged at intervals, and adjacent stacking roller shutter doors are staggered; the stacking roller shutter doors are staggered in front and back to reduce the spacing between the roller shutter doors, the gap is 50±5mm, and the height distance is 1.5m. The stacking roller shutter doors are rolled up with a built-in motor, and the operating speed is: 30rpm; 50s to rise from the lower end to the top;

[0008] A first pipe group, the first pipe group includes a first main pipe fixed to the top surface of the outer side of the aluminum alloy frame body, a plurality of sub-pipes are fixed at intervals on both sides of the first main pipe, and the sub-pipes are connected to the first main pipe; the sub-pipes are provided with a plurality of ABS dust suction ports;

[0009] A second pipe group, the second pipe group includes a second main pipe, and a plurality of branch pipes are connected to the second main pipe at intervals;

[0010] An electric tubing reel machine, wherein a plurality of electric tubing reels are provided and fixed at intervals on the main beam of the overhead crane; the electric tubing reel machine comprises a rotating drum rotatably arranged on a bracket, one end of the rotating drum is mounted with a motor, and a hollow rotating head is rotatably mounted on the other end, and the rotating head is connected to the branch pipe through a connecting pipe; a dust suction hose is wound on the rotating drum, one end of the dust suction hose is connected with the inner side of the rotating drum, and the other end of the dust suction hose is connected with a dust collecting hood; when in use, the rotating drum is driven by a motor to unwind, thereby realizing the unwinding of the dust suction hose, so as to adapt to the positions of various dust removal points; after the dust removal is completed, the rotating drum can be driven by the motor to rotate, thereby realizing the rewinding of the dust suction hose;

[0011] Negative pressure filtration unit, the negative pressure filtration unit includes a filtration platform fixed to the top surface of the overhead crane main beam, the top surface of the filtration platform is fixed with a first negative pressure filter cartridge dust collector and a second negative pressure filter cartridge dust collector; the first main pipe is connected to the air inlet end of the first negative pressure filter cartridge dust collector, and the second main pipe is connected to the air inlet end of the second negative pressure filter cartridge dust collector. The power of the first negative pressure filter cartridge dust collector and the second negative pressure filter cartridge dust collector is 11KW; the processing air volume is 8000-11000m³ / h, the number of filter cartridges is 9; the filter cartridge specification is φ325*860mm, the filter cartridge is flame-retardant with PTFE coating, and is equipped with a fire retardant box. The first negative pressure filter cartridge dust collector provides negative pressure for the first main pipe, and the first main pipe provides vacuum negative pressure for each ABS vacuum port through the sub-pipe to collect the escaped dust;

[0012] The second negative pressure filter cartridge dust collector provides negative pressure for the second main pipe, the second main pipe provides negative pressure through the branch pipe and the dust suction hose, and provides dust suction negative pressure for the dust collecting hood through the dust suction hose to achieve fixed-point dust suction.

[0013] The welding fume is effectively collected through the dust hood at the fixed point and the aluminum alloy frame fume hood on the top, and then collected by the negative pressure suction of the negative pressure filter unit; specifically: when welding fume is generated, the dust hood is first used to effectively collect the welding fume at the fixed point. Since the dust hood cannot collect the fume completely, the overflowing welding fume is collected for a second time by the aluminum alloy frame fume hood on the overhead crane; the fume collected by the dust hood is filtered by the second negative pressure filter cartridge dust collector with high negative pressure, and the fume collected by the overhead crane fume hood is filtered by the first negative pressure filter cartridge dust collector with medium and low pressure.

[0014] Furthermore, the dust collecting hood is sleeved on the outside of the welding gun head, and when the welding gun head is welding, the welding fume can be collected by the dust collecting hood.

[0015] Furthermore, the cover plate is a sunlight plate, which can allow external light to enter the inner side of the smoke collecting enclosure.

[0016] Furthermore, an opening valve is arranged between the sub-pipe and the ABS dust suction port; the first pipe group is located above the aluminum alloy frame body, and the ABS dust suction ports are arranged at equal intervals. The opening degree of each ABS dust suction port is adjusted by the opening valve to ensure that the air volume of each branch pipe is balanced.

[0017] Furthermore, the first main pipe and the second main pipe are both formed by connecting multiple pipe sections, and the inner diameter of the pipe section close to one end of the negative pressure filter unit is larger than the inner diameter of the pipe section far from the one end of the negative pressure filter unit, which can ensure that the air volume of each branch pipe is balanced.

[0018] Furthermore, the aluminum alloy frame is fixed to the main beam of the overhead travelling crane via columns.

[0019] Compared with the prior art, the shipyard overhead crane smoke hood of the utility model adopts an overhead crane main beam to drive the aluminum alloy frame smoke hood and the smoke collection enclosure to move to the processing area, which can locally collect smoke in large spaces such as shipyards; no shutdown is required to deal with welding smoke, which does not affect the work efficiency of workers; the smoke pollutants in the smoke collection enclosure can be controlled within a controllable range; the smoke collection efficiency is improved, the operating cost is reduced, and it does not take up too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of the overhead crane smoke collecting hood for shipyard.

[0021] Figure 2 The utility model is a schematic diagram of the side structure of the overhead crane smoke collecting hood for shipyard.

[0022] Figure 3 The utility model is a schematic diagram of the top surface structure of the overhead crane smoke collecting hood for shipyard.

[0023] Figure 4 This is a schematic diagram of the aluminum alloy frame and column installation structure of the utility model.

[0024] Figure 5 This is a schematic diagram of the overall structure of the first tube group of the utility model.

[0025] Figure 6 It is a schematic diagram of the installation structure of the second tube group and the electric coiler of the utility model.

[0026] Figure 7 This is a schematic diagram of the structure of the electric coiler of the utility model.

[0027] Figure numerals: 1. overhead crane main beam, 2. aluminum alloy frame body, 3. cover plate, 4. smoke collection enclosure, 5. first main pipe, 6. sub-pipe, 7. ABS dust suction port, 8. second main pipe, 9. branch pipe, 10. rotating cylinder, 11. rotating head, 12. dust suction hose, 13. dust collection hood, 14. filtering platform, 15. first negative pressure filter cartridge dust collector, 16. second negative pressure filter cartridge dust collector, 17. opening valve, 18. column, 19. electric coil machine. DETAILED DESCRIPTION

[0028] Example:

[0029] like Figures 1 to 7 The shipyard overhead crane fume hood shown includes:

[0030] A crane main beam 1, wherein the crane main beam 1 is a horizontal double beam;

[0031] An aluminum alloy frame smoke hood, the aluminum alloy frame smoke hood comprises an aluminum alloy frame body 2, a cover plate 3 is fixed to the top surface of the aluminum alloy frame body 2; a top hood can be established on the crane main beam 1 through the aluminum alloy frame body 2 and the cover plate 3, and can be moved to various ship processing areas through the crane main beam 1;

[0032] The smoke collecting enclosure 4, the main beam 1 of the overhead crane, the aluminum alloy frame smoke collecting hood and the smoke collecting enclosure 4 form a moving area with a hollow bottom surface; the smoke collecting enclosure 4 is composed of stacking roller shutter doors arranged at intervals, and the adjacent stacking roller shutter doors are staggered; the stacking roller shutter doors are staggered in front and back to reduce the spacing between the roller shutter doors, the gap is 50±5mm, and the height distance is 1.5m. The stacking roller shutter doors are rolled up with a built-in motor, and the operating speed is: 30rpm; 50s are raised from the lower end to the top end;

[0033] A first pipe group, the first pipe group includes a first main pipe 5 fixed to the outer top surface of the aluminum alloy frame body 2, a plurality of sub-pipes 6 are fixed at intervals on both sides of the first main pipe 5, and the sub-pipes 6 are connected to the first main pipe 5; the sub-pipes 6 are provided with a plurality of ABS dust suction ports 7;

[0034] A second pipe group, the second pipe group includes a second main pipe 8, and a plurality of branch pipes 9 are connected to the second main pipe 8 at intervals;

[0035] An electric tubing reel 19, wherein a plurality of electric tubing reels 19 are provided and fixed at intervals on the main beam 1 of the overhead crane; the electric tubing reel 19 comprises a rotating drum 10 which is rotatably arranged on a bracket, wherein one end of the rotating drum 10 is mounted with a motor, and a hollow rotating head 11 is rotatably mounted on the other end, and the rotating head 11 is connected to the branch pipe 9 through a connecting pipe; a dust suction hose 12 is wound on the rotating drum 10, wherein one end of the dust suction hose 12 is connected with the inner side of the rotating drum 10, and the other end of the dust suction hose 12 is connected with a dust collecting hood 13; when in use, the rotating drum 10 is driven by a motor to unwind, thereby realizing unwinding of the dust suction hose 12, thereby adapting to the positions of various dust removal points; after dust removal is completed, the rotating drum 10 can be driven by a motor to rotate, thereby realizing winding of the dust suction hose 12;

[0036] Negative pressure filtration unit, the negative pressure filtration unit includes a filtration platform 14 fixed to the top surface of the overhead crane main beam 1, and the top surface of the filtration platform 14 is fixed with a first negative pressure filter cartridge dust collector 15 and a second negative pressure filter cartridge dust collector 16; the first main pipe 5 is connected to the air inlet end of the first negative pressure filter cartridge dust collector 15, and the second main pipe 8 is connected to the air inlet end of the second negative pressure filter cartridge dust collector 16. The power of the first negative pressure filter cartridge dust collector 15 and the second negative pressure filter cartridge dust collector 16 is 11KW; the processing air volume is 8000-11000m³ / h, and the number of filter cartridges is 9; the filter cartridge specification is φ325*860mm, the filter cartridge is flame-retardant with PTFE coating, and is equipped with a fire-retardant box. The first negative pressure filter cartridge dust collector 15 provides negative pressure for the first main pipe 5, and the first main pipe 5 provides vacuum negative pressure for each ABS vacuum port 7 through the sub-pipe 6 to collect the escaped dust;

[0037] The second negative pressure filter cartridge dust collector 16 provides negative pressure for the second main pipe 8, and the second main pipe 8 provides negative pressure through the branch pipe 9 and the dust suction hose 12, and provides dust suction negative pressure for the dust collecting hood 13 through the dust suction hose 12 to achieve fixed-point dust suction.

[0038] The welding fume is effectively collected by the dust hood 13 at the fixed point and the aluminum alloy frame fume hood on the top, and then the welding fume is collected by the negative pressure suction of the negative pressure filter unit; specifically: when the welding fume is generated, the dust hood 13 first effectively collects the welding fume at the fixed point, and because the dust hood 13 cannot completely collect the fume, the overflowing welding fume is collected for a second time by the aluminum alloy frame fume hood on the overhead crane; the fume collected by the dust hood 13 is filtered by the second negative pressure filter cartridge dust collector 16 with high negative pressure, and the fume collected by the overhead crane fume hood is filtered by the first negative pressure filter cartridge dust collector 15 with medium and low pressure.

[0039] The dust collecting hood 13 is sleeved on the outside of the welding gun head. When the welding gun head is welding, welding fumes can be collected by the dust collecting hood 13 .

[0040] The cover plate 3 is a sunlight plate, which can allow external light to enter the inner side of the smoke collecting enclosure 4.

[0041] An opening valve 17 is provided between the sub-pipe 6 and the ABS dust suction port 7; the first pipe group is located above the aluminum alloy frame body 2, and the ABS dust suction ports 7 are arranged at equal intervals. The opening degree of each ABS dust suction port 7 is adjusted by the opening valve 17 to ensure that the air volume of each branch pipe is balanced.

[0042] The first main pipe 5 and the second main pipe 8 are both formed by connecting multiple pipe sections. The inner diameter of the pipe section close to the negative pressure filter unit is larger than the inner diameter of the pipe section far from the negative pressure filter unit, which can ensure the balance of air volume in each branch pipe.

[0043] The aluminum alloy frame body 2 is fixed to the overhead travelling crane main beam 1 via columns 18 .

[0044] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A shipyard overhead crane smoke hood, characterized in that: include: A crane main beam, wherein the crane main beam is a horizontal double beam; An aluminum alloy frame smoke hood, the aluminum alloy frame smoke hood comprising an aluminum alloy frame body, a cover plate being fixed to the top surface of the aluminum alloy frame body; A smoke collection enclosure, the smoke collection enclosure being composed of stacking type rolling shutter doors arranged at intervals, and adjacent stacking type rolling shutter doors being installed in a staggered manner; A first pipe group, the first pipe group includes a first main pipe fixed to the top surface of the outer side of the aluminum alloy frame body, a plurality of sub-pipes are fixed at intervals on both sides of the first main pipe, and the sub-pipes are connected to the first main pipe; the sub-pipes are provided with a plurality of ABS dust suction ports; A second pipe group, the second pipe group includes a second main pipe, and a plurality of branch pipes are connected to the second main pipe at intervals; An electric tubing reel, wherein a plurality of electric tubing reels are provided and fixed at intervals on the main beam of the overhead travelling crane; the electric tubing reel comprises a rotating drum which is rotatably arranged on a bracket, one end of the rotating drum is mounted with a motor, and the other end is rotatably mounted with a hollow rotating head, and the rotating head is connected to a branch pipe through a connecting pipe; a dust suction hose is wound on the rotating drum, one end of the dust suction hose is connected with the inner side of the rotating drum, and the other end of the dust suction hose is connected with a dust collecting hood; A negative pressure filter unit, the negative pressure filter unit includes a filter platform fixed to the top surface of the overhead crane main beam, and a first negative pressure filter cartridge dust collector and a second negative pressure filter cartridge dust collector are fixed to the top surface of the filter platform; the first main pipe is connected to the air inlet end of the first negative pressure filter cartridge dust collector, and the second main pipe is connected to the air inlet end of the second negative pressure filter cartridge dust collector.

2. The shipyard overhead crane smoke hood according to claim 1, characterized in that: The dust collecting cover is sleeved on the outside of the welding gun head.

3. The shipyard overhead crane smoke hood according to claim 1, characterized in that: The cover plate is a solar panel.

4. The shipyard overhead crane smoke hood according to claim 1, characterized in that: An opening valve is arranged between the sub-pipe and the ABS dust suction port.

5. The shipyard overhead crane smoke hood according to claim 1, characterized in that: The first main pipe and the second main pipe are both formed by connecting multiple pipe sections, and the inner diameter of the pipe section close to one end of the negative pressure filter unit is larger than the inner diameter of the pipe section far from the one end of the negative pressure filter unit.

6. The shipyard overhead crane smoke hood according to claim 1, characterized in that: The aluminum alloy frame body is fixed to the main beam of the overhead travelling crane through upright columns.

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