A ship air duct system

Abstract

The utility model discloses a ship air duct system, including air intake structure, air intake structure includes the ear plate, ventilation spare, be used for installing the positioning fixture and locking spare, and the side wall of structural air duct is equipped with a plurality of ventilation openings, and the ventilation opening has first center line, and the ear plate includes welding portion and first connecting part, and welding portion and the inner wall welding of structural air duct, and first connecting part is connected with ventilation spare through locking spare, and ventilation spare cover is established in the ventilation opening, and the positioning fixture has second connecting part and second center line, and second connecting part can be detachably connected with first connecting part, when first connecting part is connected with second connecting part, and second center line is aligned with first center line, and welding portion and the inner wall welding of structural air duct, when welding portion and the inner wall welding of structural air duct, first connecting part and second connecting part remove the connection. The utility model improves the positioning accuracy and consistency of ear plate installation, and has improved construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of marine ventilation technology, and in particular to a marine ventilation system. Background Technology

[0002] In ship structural design, ventilation grilles and ventilation covers are typically installed in structural air ducts to meet the ventilation requirements of different cargo types. Specifically, ventilation grilles are required when transporting special cargo to ensure good ventilation performance, while ventilation covers are used when transporting general bulk cargo to prevent cargo from entering the air ducts.

[0003] Based on actual needs, the structural air duct design includes 72 ventilation grilles and 72 ventilation covers, each of which is bolted together. To achieve this functionality, the opening dimensions in the structural air duct are 900×900×R55, while the corresponding grille and cover dimensions are 890×890×R50, ensuring precise matching and installation stability. Furthermore, each grille requires 8 lugs, totaling 572 lugs used throughout the vessel. These lugs are pre-embedded within the structural air duct, serving as key components for connecting the grilles and covers.

[0004] However, in traditional manufacturing processes, the assembly of ear plates relies on manual marking and positioning. This method is not only cumbersome, but also requires high positioning accuracy of bolt holes, resulting in low construction efficiency and difficulty in controlling positioning errors. Utility Model Content

[0005] The technical problem to be solved by this utility model is that in the traditional manufacturing process, the assembly of the ear plate relies on manual marking and positioning, which leads to low construction efficiency and the problem of difficult-to-control positioning error.

[0006] To solve the above-mentioned technical problems, this utility model provides a ship ventilation system installed on a ship. The ship is equipped with a structural ventilation system, including an air inlet structure. The air inlet structure includes a lug plate, a ventilation component, a positioning fixture for installation and positioning, and a locking component. The side wall of the structural ventilation system has multiple ventilation openings, and each ventilation opening has a first center line. The lug plate includes a welding part and a first connecting part. The welding part is welded to the inner wall of the structural ventilation system. The first connecting part is connected to the ventilation component through the locking component, and the ventilation component covers the ventilation opening. The positioning fixture has a second connecting part and a second center line. The second connecting part can be detachably connected to the first connecting part.

[0007] When the first connecting part is connected to the second connecting part, the second center line is aligned with the first center line, and the welding part is welded to the inner wall of the structural air duct; after the welding part is welded to the inner wall of the structural air duct, the first connecting part and the second connecting part are disconnected.

[0008] Furthermore, the first connecting part has a first locking hole, the second connecting part has a plurality of second locking holes, the plurality of second locking holes are arranged at equal angular intervals around the center of the second connecting part, and the ventilation component has a plurality of third locking holes, the third locking holes being arranged corresponding to the first locking holes.

[0009] Furthermore, the diameter tolerance of the second locking hole is within ±0.5mm.

[0010] Furthermore, the positioning fixture has a through hole, and the second connecting portion is circumferentially disposed around the through hole.

[0011] Furthermore, the second connecting portion has a handle on the side opposite to the ventilation component.

[0012] Furthermore, the ventilation component includes a ventilation cover plate covering the ventilation opening, the ventilation cover plate having the third locking hole and a handle, the handle being installed on the side of the ventilation cover plate away from the ear plate, the locking component passing through the third locking hole and the first locking hole, and connecting the ventilation cover plate and the ear plate.

[0013] Furthermore, the ventilation component includes a ventilation grille covering the ventilation opening, the ventilation grille having the third locking hole and the grille opening, the locking member passing through the third locking hole and the first locking hole, and connecting the ventilation grille and the ear plate.

[0014] Furthermore, the locking component includes a fully threaded bolt and a butterfly buckle. One end of the butterfly buckle passes through the first locking hole and the third locking hole in sequence. The fully threaded bolt is threadedly connected to the butterfly buckle to connect the ear plate and the ventilation component.

[0015] Furthermore, the air intake structure also includes louvers, and the structural air duct has an air intake located at the deckhouse of the ship, with the louvers installed at the air intake.

[0016] Furthermore, it also includes a ventilation structure having a ventilation duct and a ventilation fan, one end of the ventilation duct being connected to the ventilation fan, and the other end of the ventilation duct being connected to the pipework area of ​​the vessel.

[0017] Compared with the prior art, the beneficial effects of this embodiment of the ship ventilation system are as follows:

[0018] The positioning fixture of this embodiment provides precise positioning during the installation of the ear plate, ensuring the accurate position of the first connecting part. Pre-positioning is performed before welding using the positioning fixture. By connecting the second connecting part of the positioning fixture to the first connecting part of the ear plate and aligning the second center line with the first center line of the vent, precise positioning of the ear plate is achieved, ensuring the accuracy of the ear plate installation position and thus improving the overall assembly quality. Once the ear plate is welded to the inner wall of the structural duct, the connection between the positioning fixture and the ear plate can be released, making the subsequent installation of ventilation components simpler and faster. This embodiment utilizes the alignment of the second center line on the positioning fixture with the first center line of the vent, replacing the traditional manual marking process, improving positioning accuracy and consistency, and increasing construction efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation structure of the ship ventilation duct system provided in this embodiment of the utility model in a ship;

[0020] Figure 2 This is a schematic diagram of the positioning fixture provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the positioning fixture and ear plate provided in this embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the ventilation cover assembly provided in this embodiment of the utility model;

[0023] Figure 5 This is a front view of the ventilation cover assembly provided in this embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the ventilation grille assembly provided in an embodiment of the present utility model;

[0025] Figure 7 This is a front view of the ventilation grille assembly provided in an embodiment of this utility model;

[0026] In the diagram, 1 is the structural air duct; 11 is the ventilation opening; 2 is the air intake structure; 21 is the ear plate; 211 is the welding part; 212 is the first connecting part; 213 is the first locking hole; 22 is the ventilation component; 221 is the third locking hole; 222 is the ventilation cover plate; 2221 is the handle; 223 is the ventilation grille; 2231 is the grille opening; 23 is the positioning fixture; 231 is the second connecting part; 232 is the second locking hole; 233 is the through hole; 234 is the gripper; 24 is the locking component; 25 is the louver; 3 is the exhaust structure; 31 is the exhaust pipe; and 32 is the exhaust fan. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] like Figures 1 to 7 As shown, this utility model provides a ship ventilation system installed on a ship. The ship is equipped with a structural ventilation duct 1 for ventilation. The ship ventilation system includes an air intake structure 2, which includes a lug plate 21, a ventilation component 22, a positioning fixture 23 for installation and positioning, and a locking component 24. The side wall of the structural ventilation duct 1 has multiple ventilation openings 11, and the ventilation openings 11 have a first center line. The lug plate 21 includes a welding part 211 and a first connecting part 212. The welding part 211 is welded to the inner wall of the structural ventilation duct 1. The first connecting part 212 is connected to the ventilation component 22 through the locking component 24, and the ventilation component 22 covers the ventilation openings 11. The positioning fixture 23 has a second connecting part 231 and a second center line. The second connecting part 231 can be detachably connected to the first connecting part 212.

[0029] When the first connecting part 212 is connected to the second connecting part 231, the second center line is aligned with the first center line, and the welding part 211 is welded to the inner wall of the structural air duct 1; after the welding part 211 is welded to the inner wall of the structural air duct 1, the first connecting part 212 and the second connecting part 231 are disconnected.

[0030] Based on the above structure, the positioning fixture 23 in this embodiment is used to provide precise positioning during the installation of the ear plate 21, ensuring the accurate position of the first connecting part 212. Before welding, the positioning fixture 23 is used for pre-positioning. By connecting the second connecting part 231 of the positioning fixture 23 to the first connecting part 212 of the ear plate 21 and aligning the second center line with the first center line of the vent 11, precise positioning of the ear plate 21 is achieved, ensuring the accuracy of the ear plate 21's installation position and thus improving the overall assembly quality. Once the ear plate 21 is welded to the inner wall of the structural duct 1, the connection between the positioning fixture 23 and the ear plate 21 can be released, making the subsequent installation of the ventilation component 22 simpler and faster. This embodiment utilizes the alignment of the second center line on the positioning fixture 23 with the first center line of the vent 11, replacing the traditional manual marking process, improving positioning accuracy and consistency, and increasing construction efficiency.

[0031] It should be noted that after removing the locking part 24, apply grease to the hinge teeth of the ear plate 21, and complete the assembly, welding and grinding of the other structural air duct 1 ear plate 21.

[0032] Furthermore, the first connecting portion 212 has a first locking hole 213 for subsequent connection with the ventilation component 22 or the positioning fixture 23. The second connecting portion 231 has a plurality of second locking holes 232, which are arranged at equal angular intervals around the center of the second connecting portion 231. The ventilation component 22 has a plurality of third locking holes 221, which are correspondingly arranged with the first locking holes 213, so that the ventilation component 22 can be securely connected to the ear plate 21 by the locking member 24.

[0033] Since the second locking holes 232 on the second connecting portion 231 in this embodiment are arranged at equal angular intervals, the positioning fixture 23 can flexibly adjust its angular position relative to the ear plate 21. When it is necessary to accurately install the ear plate 21 in the structural air duct 1, the position of the other ear plate 21 can be determined by selecting an appropriate second locking hole 232 to ensure that it reaches the optimal installation position. In addition, by providing matching locking holes between the ear plate 21, the positioning fixture 23 and the ventilation component 22, the compatibility and flexibility of the entire system can be improved. Different types of ventilation components 22 (e.g., ventilation grilles 223 for special goods or ventilation covers 222 for ordinary bulk goods) can be installed using the same ear plate 21 and positioning fixture 23. Only the corresponding ventilation component 22 needs to be replaced according to actual needs.

[0034] This embodiment uses locking holes for positioning and fixing, which greatly simplifies the installation process. You only need to find the corresponding locking holes and use the locking parts 24 to fix them to complete the assembly, thus improving work efficiency.

[0035] Furthermore, the diameter tolerance of the second locking hole 232 is within ±0.5mm. That is, when manufacturing the positioning fixture 23, the actual diameter of the second locking hole 232 can be 0.5mm larger or smaller than the preset diameter. For example, if the designed hole diameter is 10mm, the actual produced hole diameter can be between 9.5mm and 10.5mm. This embodiment ensures the fitting accuracy between parts by setting a reasonable hole diameter tolerance, and controls it within a tolerance range of ±0.5mm. This ensures that the mating locking part 24 can be smoothly inserted without affecting stability due to excessive looseness or causing assembly difficulties due to excessive tightness. At the same time, this tolerance can minimize manufacturing difficulty and cost while meeting usage requirements, ensuring product quality and making the manufacturing process more economical and efficient.

[0036] like Figures 2 to 3As shown, the positioning fixture 23 has a through hole 233, and the second connecting part 231 is arranged around the through hole 233 to ensure structural stability without hindering the function of the through hole 233. This embodiment reduces the amount of material required by creating the through hole 233 in the positioning fixture 23, thereby effectively reducing the overall weight. The lighter positioning fixture 23 is easier to handle and operate, improving on-site construction efficiency. Furthermore, the presence of the through hole 233 allows workers to directly observe the condition of the ear plate 21 and other internal components through the opening, ensuring the correctness and safety of the installation process. Key parts can be inspected or adjusted without disassembly, making the entire assembly process more efficient and convenient.

[0037] In some cases, ship ventilation ducts may require collaboration between internal and external personnel to complete certain tasks. Through-hole 233 can serve as a temporary communication channel to facilitate communication between internal and external personnel, especially during installation, commissioning, or maintenance. This allows external personnel to understand the working conditions inside the ventilation duct in a timely manner and provide guidance or assistance when necessary, thereby improving the safety of the operation.

[0038] It should be noted that you can press Figure 2 The positioning fixture 23 is shown to be machined using a blanking machine. The positioning fixture 23 is made of 2000 type aluminum alloy plate. The diameter of the eight second locking holes 232 has a tolerance constraint of ±0.5mm, and the holes are drilled and reamed. Then, the positioning fixture 23 is scribed with a center line. Figure 2 The four sets of mortise points shown (i.e., two pairs of second locking holes 232 as a group) are marked, and a 640*640 through hole 233 is opened in the middle. The front and back surfaces of the positioning fixture 23 are machined to a roughness of 12.5. Finally, two grippers 234 are made and installed. The 2000-type aluminum alloy plate in this embodiment is 12mm thick to ensure sufficient hardness, with a specific gravity of about 2.8 g / cm³. The total weight of the positioning fixture 23 is about 4.76 kg.

[0039] Furthermore, the second connecting part 231 has a gripper 234 on the side opposite to the ventilation component 22, which allows the operator to more easily grasp and manipulate the positioning fixture 23, thereby simplifying the steps of accurately aligning and securing the positioning fixture 23 with the ear plate 21. In addition, the gripper 234 provides additional handholds during both installation and removal processes, ensuring that the positioning fixture 23 can be quickly removed in any direction (vertical or horizontal), enhancing operational flexibility and adapting to different working environments and installation requirements.

[0040] like Figures 4 to 5As shown, the ventilation component 22 includes a ventilation cover 222 covering the ventilation opening 11, used to close the ventilation opening 11 or adjust the ventilation volume to meet the ventilation needs of different types of goods. The ventilation cover 222 has a third locking hole 221 and a handle 2221. The handle 2221 is installed on the side of the ventilation cover 222 away from the ear plate 21 for gripping when installing or removing the ventilation cover 222. The locking component 24 passes through the third locking hole 221 and the first locking hole 213 and connects the ventilation cover 222 and the ear plate 21. During installation, locking components 24 (such as bolts, screws, etc.) are used to fix the ventilation cover 222 through the third locking hole 221 on the ventilation cover 222 and the first locking hole 213 on the ear plate 21, thereby firmly installing the ventilation cover 222 on the ear plate 21 and fixing it to the inner wall of the structural air duct 1. This ensures that a stable and reliable mechanical connection is formed between the ventilation cover 222 and the ear plate 21, and ensures that the ventilation cover 222 will not loosen or fall off due to vibration or other external factors during ship navigation.

[0041] like Figures 6 to 7 As shown, the ventilation component 22 includes a ventilation grille 223 covering the ventilation opening 11, providing good airflow while preventing large objects or debris from entering the duct. The ventilation grille 223 has a third locking hole 221 and a grille opening 2231. The grille opening 2231 ensures airflow while blocking larger objects. A locking member 24 passes through the third locking hole 221 and the first locking hole 213, connecting the ventilation grille 223 to the ear plate 21, thus securely mounting the ventilation grille 223 onto the ear plate 21 and fixing it to the inner wall of the structural duct 1. This ensures a robust and reliable mechanical connection between the ventilation grille 223 and the ear plate 21, guaranteeing that the ventilation grille 223 will not loosen or fall off even when encountering vibrations or other external forces during ship navigation, maintaining system stability. Furthermore, the ventilation grille 223 allows free airflow while preventing large objects from entering the duct, maintaining air quality within the cabin and protecting the duct from potential damage.

[0042] Furthermore, the locking member 24 includes a fully threaded bolt and a butterfly buckle. One end of the butterfly buckle passes through the first locking hole 213 and the third locking hole 221 in sequence. The fully threaded bolt and the butterfly buckle are threadedly connected to connect the ear plate 21 and the ventilation member 22.

[0043] During installation, the butterfly clip is first inserted into the first locking hole 213 on one side of the ear plate 21, and then passes through the third locking hole 221 on the ventilation component 22 (e.g., ventilation grille 223 or ventilation cover 222) to quickly align and initially fix the ear plate 21 and the ventilation component 22. After the butterfly clip passes through the first locking hole 213 and the third locking hole 221, the full-threaded bolt is screwed into the thread of the butterfly clip from the other side. By rotating the full-threaded bolt until it is tightened, the ear plate 21 and the ventilation component 22 are firmly connected together. The butterfly clip in this embodiment is convenient for construction personnel to operate directly by hand, and the position can be initially fixed without tools, which greatly improves the installation efficiency. At the same time, it is also more convenient and quick when disassembly is required. The full-threaded bolt provides a complete thread surface, which can distribute the clamping force more evenly, ensuring a more secure and reliable connection between the ear plate 21 and the ventilation component 22. Compared with partially threaded bolts, full-threaded bolts can better adapt to material combinations of different thicknesses, ensuring the safety of the connection.

[0044] It should be noted that the full thread bolts are M8*45 full thread bolts, and the wing threads are M8 stainless steel wing threads.

[0045] Furthermore, the air intake structure 2 also includes louvers 25. The structural air duct 1 has an air intake located at the ship's deckhouse. The louvers 25 are installed at the air intake to control the amount of air entering the air duct by adjusting the angle of the blades, ensuring precise adjustment of ventilation according to actual needs (such as weather conditions, cargo type, etc.). In addition, the louvers 25 installed at the air intake can effectively block large particles (such as dust, rainwater, or even small animals) from entering the air duct system, thereby protecting internal equipment from damage and maintaining air quality. Under different navigation conditions (such as severe weather), convection can be reduced by closing or partially closing the louvers 25, preventing excessive moisture or cold air from directly entering the cabin and affecting the comfort of the internal environment or the safety of the cargo.

[0046] Furthermore, it also includes an exhaust structure 3, an exhaust system for venting air. The exhaust structure 3 has an exhaust duct 31 and an exhaust fan 32. The exhaust fan 32 generates negative pressure to draw in air, while the exhaust duct 31 serves as an airflow channel. One end of the exhaust duct 31 is connected to the exhaust fan 32, and the other end is connected to the ship's pipework area. This pipework typically refers to the space or passageway inside the ship used to house various pipes, including but not limited to cable conduits, water pipes, and ventilation ducts. In this embodiment, the exhaust structure 3 helps maintain fresh air circulation within the cabin by drawing in indoor air.

[0047] In summary, this embodiment of the invention provides a marine ventilation duct system. The positioning fixture 23 is used to provide precise positioning during the installation of the lug plate 21, ensuring the accurate position of the first connecting part 212. Before welding, the positioning fixture 23 is used for pre-positioning. By connecting the second connecting part 231 of the positioning fixture 23 to the first connecting part 212 of the lug plate 21 and aligning the second center line with the first center line of the ventilation opening 11, precise positioning of the lug plate 21 is achieved, ensuring the accuracy of the lug plate 21's installation position and thus improving the overall assembly quality. Once the lug plate 21 is welded to the inner wall of the structural ventilation duct 1, the connection between the positioning fixture 23 and the lug plate 21 can be released, making the subsequent installation of the ventilation component 22 simpler and faster. This embodiment utilizes the alignment of the second center line on the positioning fixture 23 with the first center line of the ventilation opening 11, replacing the traditional manual marking process, improving positioning accuracy and consistency, and increasing construction efficiency.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A ship ventilation system, installed on a ship, the ship being provided with structural ventilation ducts, characterized in that, The system includes an air inlet structure, which comprises an ear plate, a ventilation component, a positioning fixture for installation and positioning, and a locking component. The side wall of the air duct is provided with multiple ventilation openings, each ventilation opening having a first center line. The ear plate includes a welding part and a first connecting part. The welding part is welded to the inner wall of the air duct. The first connecting part is connected to the ventilation component through the locking component, and the ventilation component covers the ventilation opening. The positioning fixture has a second connecting part and a second center line, and the second connecting part is detachably connected to the first connecting part. When the first connecting part is connected to the second connecting part, the second center line is aligned with the first center line, and the welding part is welded to the inner wall of the structural air duct; after the welding part is welded to the inner wall of the structural air duct, the first connecting part and the second connecting part are disconnected.

2. The ship ventilation system according to claim 1, characterized in that, The first connecting part has a first locking hole, the second connecting part has a plurality of second locking holes, the plurality of second locking holes are arranged at equal angular intervals around the center of the second connecting part, and the ventilation component has a plurality of third locking holes, the third locking holes being arranged corresponding to the first locking holes.

3. The ship ventilation system according to claim 2, characterized in that, The diameter tolerance of the second locking hole is within ±0.5mm.

4. The ship ventilation system according to claim 2, characterized in that, The positioning fixture has a ventilation opening, and the second connecting part is arranged around the ventilation opening.

5. The ship ventilation system according to any one of claims 2-4, characterized in that, The second connecting part has a handle on the side opposite to the ventilation component.

6. The ship ventilation system according to claim 2, characterized in that, The ventilation component includes a ventilation cover plate covering the ventilation opening. The ventilation cover plate has the third locking hole and a handle. The handle is installed on the side of the ventilation cover plate away from the ear plate. The locking component passes through the third locking hole and the first locking hole and connects the ventilation cover plate and the ear plate.

7. The ship ventilation system according to claim 2, characterized in that, The ventilation component includes a ventilation grille covering the ventilation opening, the ventilation grille having the third locking hole and the grille opening, the locking member passing through the third locking hole and the first locking hole, and connecting the ventilation grille and the ear plate.

8. The ship ventilation system according to claim 2, characterized in that, The locking component includes a full-threaded bolt and a butterfly buckle. One end of the butterfly buckle passes through the first locking hole and the third locking hole in sequence. The full-threaded bolt is threadedly connected to the butterfly buckle to connect the ear plate and the ventilation component.

9. The ship ventilation system according to claim 1, characterized in that, The air intake structure also includes louvers, and the structural air duct has an air intake located at the deckhouse of the ship, with the louvers installed at the air intake.

10. The ship ventilation system according to claim 1, characterized in that, It also includes a ventilation structure, which has a ventilation duct and a ventilation fan. One end of the ventilation duct is connected to the ventilation fan, and the other end of the ventilation duct is connected to the pipework area of ​​the ship.

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