A ship wind channel end guide structure

Abstract

The utility model provides a kind of ship air duct end guide structure, fan opening is set up on the deck above the ship air duct beginning end, the fan is fixed in the above fan opening by fan base, the guide structure includes two wind baffles arranged in the inside of the ship air duct, two the wind baffles mirror image symmetry are arranged in the two sides of the fan opening central axis, the width direction of the wind baffle is parallel with the width direction of the ship air duct, the upper end of two the wind baffles is reversely connected with the deck, the rotating direction of two the wind baffles is respectively towards the left and right sides of the ship air duct, airflow acts on the wind baffle when fan works, the wind baffle rotates, and the end of two the wind baffles respectively abuts with the left and right side walls of ship air duct.The utility model's ship air duct end guide structure, by using movable wind baffle, realize adjusting fan efficiency and airflow distribution, reduce production process cost, improve ventilation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of marine ventilation technology, and specifically relates to a flow guiding structure at the end of a marine air duct. Background Technology

[0002] Special vessels such as roll-on / roll-off (Ro-Ro) ships and passenger Ro-Ro ships typically have straight ventilation ducts installed on the sides to ventilate all decks. Dead zones exist near the fan outlets at the ends of these ducts, which can create turbulence and reduce ventilation efficiency. Utility Model Content

[0003] To address the above problems, this utility model provides a flow guiding structure at the end of a ship's air duct.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A flow guiding structure at the end of a ship's air duct includes a fan opening on the deck above the beginning of the air duct. The fan is fixed above the fan opening via a fan base. The flow guiding structure includes two baffles disposed inside the air duct. The two baffles are mirror-symmetrically arranged on both sides of the central axis of the fan opening. The width direction of the baffles is parallel to the width direction of the air duct. The upper ends of the two baffles are rotatably connected to the opposite side of the deck. The rotation directions of the two baffles are respectively towards the left and right sides of the air duct. When the fan is working, the airflow acts on the baffles, causing them to rotate. The ends of the two baffles abut against the left and right sidewalls of the air duct, respectively.

[0005] Furthermore, symmetrical reinforcing ribs are provided on the reverse side of the deck on both sides of the deck opening, and the upper end of the wind deflector is rotatably connected to the reinforcing ribs on the reverse side of the deck.

[0006] Furthermore, multiple oval holes are spaced apart along the length of the reinforcing rib, and the length direction of the oval holes is parallel to the length direction of the reinforcing rib; multiple lifting rings are spaced apart at the upper end of the wind baffle, and the wind baffle and the reinforcing rib are rotatably connected to the oval holes through the lifting rings.

[0007] Furthermore, the width of the oval hole is twice the wall thickness of the lifting ring.

[0008] Furthermore, the center of the lifting ring is arranged parallel to the center of the opening of the reinforcing rib, and the lifting ring is a hollow cylinder with an inner diameter D greater than the vertical distance H between the lower end of the oblong hole and the lower end face of the reinforcing rib.

[0009] Furthermore, the shape of the wind deflector is the same as the shape of the longitudinal section of the hull air duct, the size of the wind deflector is a proportional reduction of the longitudinal section size of the hull air duct, and the area of ​​the wind deflector is 0.8 times the area of ​​the longitudinal section of the hull air duct.

[0010] The ship ventilation duct end guide structure of this utility model uses a movable wind baffle to adjust the fan efficiency and airflow distribution, reduce production process costs, and improve ventilation efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the ship's wind duct end guide structure in its non-working state.

[0012] Figure 2 This is a schematic diagram of the structure of the ship's wind duct end guide structure under working conditions as described in this utility model.

[0013] Figure 3 yes Figure 1 View from the AA direction.

[0014] Figure 4 yes Figure 3 Enlarged diagram of part B.

[0015] Among them, 1-hull ventilation duct, 2-deck, 3-fan, 4-wind deflector, 5-reinforcing rib, 6-slotted hole, 7-lifting ring. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1-4 As shown, a flow guiding structure at the end of a ship's air duct has a fan opening on a deck 2 above the beginning of the air duct 1. The fan 3 is fixed above the fan opening via a fan base. The flow guiding structure includes two baffles 4 inside the air duct 1. The two baffles 4 are mirror-symmetrically arranged on both sides of the central axis of the fan opening. The width direction of the baffles 4 is parallel to the width direction of the air duct 1. The upper ends of the two baffles 4 are rotatably connected to the opposite side of the deck 2. The rotation directions of the two baffles 4 are respectively towards the left and right sides of the air duct 1. When the fan 3 is working, the airflow acts on the baffles 4, and the baffles 4 rotate. The ends of the two baffles 4 abut against the left and right side walls of the air duct 1, respectively.

[0018] In this embodiment, reinforcing ribs 5 are symmetrically arranged on the reverse side of the deck 2 on both sides of the opening of the deck 2, and the upper end of the wind baffle 4 is rotatably connected to the reinforcing ribs 5 on the reverse side of the deck 2.

[0019] To facilitate the rotation of the wind baffle 4 and the reinforcing rib 5, in this embodiment, a plurality of oval holes 6 are spaced apart along the length of the reinforcing rib 5, and the length direction of the oval holes 6 is parallel to the length direction of the reinforcing rib 5; a plurality of lifting rings 7 are spaced apart at the upper end of the wind baffle 4, and the wind baffle 4 and the reinforcing rib 5 are rotatably connected to the oval holes 6 through the lifting rings 7. Of course, in other embodiments, the wind baffle 4 and the reinforcing rib 5 can also adopt other structural forms to achieve the rotatable connection in this direction.

[0020] To ensure the flexibility of rotation of the wind baffle 4 and the reinforcing rib 5, the width of the oblong hole 6 is twice the wall thickness of the lifting ring 7. The centroid of the lifting ring 7 is parallel to the centroid of the opening of the reinforcing rib 5. The lifting ring 7 is a hollow cylinder with an inner diameter D greater than the vertical distance H between the lower end of the oblong hole 6 and the lower end face of the reinforcing rib 5.

[0021] To better avoid dead zones near the fan outlet at the end of the hull air duct 1 that are prone to turbulence, the shape of the baffle plate 4 is the same as the shape of the longitudinal section of the hull air duct 1. The size of the baffle plate 4 is a proportional reduction of the longitudinal section size of the hull air duct 1, and the area of ​​the baffle plate 4 is 0.8 times the longitudinal section area of ​​the hull air duct 1.

[0022] Those skilled in the art should understand that the above description is merely a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flow guiding structure at the end of a ship's air duct, wherein a fan opening is provided on the deck above the beginning of the air duct, and the fan is fixed above the fan opening via a fan base, characterized in that, The airflow guiding structure includes two wind deflectors disposed inside the ship's air duct. The two wind deflectors are mirror-symmetrically disposed on both sides of the central axis of the fan opening. The width direction of the wind deflectors is parallel to the width direction of the ship's air duct. The upper ends of the two wind deflectors are rotatably connected to the opposite side of the deck. The rotation directions of the two wind deflectors are respectively towards the left and right sides of the ship's air duct. When the fan is working, the airflow acts on the wind deflectors, the wind deflectors rotate, and the ends of the two wind deflectors respectively abut against the left and right side walls of the ship's air duct.

2. The ship duct end guide structure according to claim 1, characterized in that, Reinforcing ribs are symmetrically arranged on the reverse side of the deck on both sides of the deck opening, and the upper end of the wind deflector is rotatably connected to the reinforcing ribs on the reverse side of the deck.

3. The ship duct end guide structure according to claim 2, characterized in that, Multiple oval holes are spaced apart along the length of the reinforcing rib, and the length direction of the oval holes is parallel to the length direction of the reinforcing rib; multiple lifting rings are spaced apart at the upper end of the wind baffle, and the wind baffle and the reinforcing rib are rotatably connected to the oval holes through the lifting rings.

4. The ship duct end guide structure according to claim 3, characterized in that, The width of the oval hole is twice the wall thickness of the lifting ring.

5. The ship duct end guide structure according to claim 4, characterized in that, The center of the lifting ring is arranged parallel to the center of the opening of the reinforcing rib. The lifting ring is a hollow cylinder with an inner diameter D that is greater than the vertical distance H between the lower end of the oblong hole and the lower end face of the reinforcing rib.

6. The ship duct end guide structure according to claim 1, characterized in that, The shape of the wind deflector is the same as the shape of the longitudinal section of the hull air duct. The size of the wind deflector is a proportional reduction of the longitudinal section size of the hull air duct. The area of ​​the wind deflector is 0.8 times the area of ​​the longitudinal section of the hull air duct.

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