Ship and dual-purpose ventilator

Abstract

The ship and dual-purpose ventilator comprises a gooseneck pipe, the gooseneck pipe is provided with a straight cylinder section and a bent cylinder section which are sequentially connected, an opening in the end, axially away from the bent cylinder section, of the straight cylinder section is used for being communicated with an air duct, and an opening in the end, axially away from the straight cylinder section, of the bent cylinder section is a first ventilation opening; a branch pipe is arranged on the side wall of the gooseneck pipe and communicates with the interior of the gooseneck pipe, and an opening in the end, away from the gooseneck pipe in the axial direction, of the branch pipe serves as a second ventilation opening. The connecting flange is arranged on the periphery of one of the first ventilation opening and the second ventilation opening, and the connecting flange is configured to be detachably connected with the blind plate or an external shore communicating pipeline; the opening and closing device is arranged on the other one of the first ventilation opening and the second ventilation opening, and the opening and closing device is used for opening or closing the opening. The branch pipe is arranged on the gooseneck pipe in a communicating mode, gas of the cargo hold on the ship can be exhausted to the odor treatment device on the shore through the shore pipeline, the gooseneck pipe has two purposes, and the situation that odor exhausted from the cargo hold affects workers when the ship reaches the shore is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a ship and a dual-purpose ventilator. Background Art

[0002] Gooseneck ventilators are weathertight closures used to ventilate various compartments on board a ship. Conventional gooseneck ventilators have one axial end placed on the open deck and connected to the cargo hold. The other axial end is open to facilitate the exhaust of gases from the hold, ensuring good ventilation for the shipboard environment. Container ships transporting waste containers can generate an odor at the bottom of the cargo hold. While at sea, the odor can be exhausted to the atmosphere through the gooseneck ventilators. However, when docked, the odor may cause discomfort to shoreside staff, disrupting their work. Utility Model Content

[0003] The purpose of the utility model is to provide a ship and a dual-purpose ventilator to solve the problems in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a dual-purpose ventilator, comprising: a gooseneck tube, having a straight section and a curved section connected in sequence, the straight section having an opening at one end axially away from the curved section for connecting to the air duct, and the curved section having an opening at one end axially away from the straight section as a first vent; a branch tube is provided on the side wall of the gooseneck tube, the branch tube is connected to the interior of the gooseneck tube, and the branch tube has an opening at one end axially away from the gooseneck tube as a second vent; a connecting flange is provided on the outer periphery of one of the first vent and the second vent, and the connecting flange is configured for detachable connection with a blind plate or an external shore pipeline; an opening and closing device is provided on the other of the first vent and the second vent, and the opening and closing device is configured for opening or closing the opening.

[0005] In one embodiment, the opening and closing device is provided on the first vent; the connecting flange is provided on the outer periphery of the second vent; wherein:

[0006] The first vent is opened by the opening and closing device, and the blind plate is connected to the connecting flange and closes the second vent;

[0007] When the opening and closing device closes the first vent, the connecting flange is connected to the shore pipeline, so that the second vent is communicated with the shore pipeline.

[0008] In one embodiment, the straight section extends vertically, and the bottom of the straight section is used to connect with the air duct;

[0009] The curved tube section is connected to the top of the straight tube section, and one axial end of the curved tube section away from the straight tube section is bent downward, and the opening of the first vent faces downward.

[0010] In one embodiment, the branch pipe is arranged at the top of the gooseneck pipe;

[0011] The branch pipe extends vertically.

[0012] In one embodiment, the axis of the branch pipe and the axis of the straight tube section coincide with each other;

[0013] The outer diameter of the branch pipe is the same as the outer diameter of the straight tube section.

[0014] In one embodiment, the opening and closing device includes a cover plate, at least one connecting rod and a clip;

[0015] One side of the cover plate is rotatably connected to one side of the first vent, and at least one side of the cover plate along its circumference is provided with a slot opening outward;

[0016] At least one positioning seat is provided on the side wall of the curved barrel section, and one axial end of the connecting rod is rotatably connected to the positioning seat in a one-to-one manner, so that when the cover plate is flipped to a position covering the first vent, the connecting rod can be rotated and snapped into the snap groove in a one-to-one manner;

[0017] The clip is threadedly connected to the other axial end of the connecting rod. When the connecting rod is located in the slot, the clip is located on the side of the slot facing away from the positioning seat, so that the clip can be rotated to approach and abut against the cover plate.

[0018] In one embodiment, a stop block is provided on the outer side wall of the straight section, and the stop block is located on the rotation track of the cover plate, so that when the cover plate opens the first vent, the stop block can abut against the cover plate.

[0019] In one embodiment, the straight tube section includes a connecting tube, an extension tube and a bottom tube connected in sequence;

[0020] The curved tube section is connected to the connecting tube, and the branch pipe is arranged on the side wall of the connecting tube or the curved tube section;

[0021] A fan is provided in the extension tube, and the fan is configured to control the airflow from the air duct to the gooseneck tube;

[0022] The bottom cylinder is arranged on the deck and is communicated with the air duct.

[0023] In one embodiment, flange connections are adopted between the connecting tube and the extending tube, and between the extending tube and the bottom tube; and / or

[0024] The connecting tube, the bent tube section and the branch pipe are formed in one piece.

[0025] The utility model also provides a ship, comprising the above-mentioned dual-purpose ventilator;

[0026] A hull, wherein a cargo hold is provided inside the hull and a deck is provided on the top of the hull;

[0027] An air duct is provided on the hull, one axial end of the air duct is opened to connect with the cargo hold, and the other axial end of the air duct is opened to extend upward to the deck. The straight tube section is provided on the deck and is correspondingly connected with the air duct.

[0028] It can be seen from the above technical solution that the advantages and positive effects of the utility model are:

[0029] The dual-purpose ventilator of the present invention comprises a branch pipe connected to the side wall of a gooseneck pipe. One axial end of the gooseneck pipe is connected to the air duct of the cargo hold. An opening and closing device is provided on one of the other axial end openings of the gooseneck pipe and the opening of the branch pipe. A connecting flange is provided on the other axial end opening of the gooseneck pipe and the opening of the branch pipe. During normal ship operation, a blind plate is provided on the connecting flange, and the opening and closing device opens the opening, allowing gas from the cargo hold to be discharged to the atmosphere through the gooseneck pipe. When the ship is docked, the opening and closing device closes the opening, and the connecting flange is removed and connected to an external shore pipeline. This sequentially connects the cargo hold, the air duct, the gooseneck pipe, the branch pipe, and the shore pipeline, allowing gas from the cargo hold to be discharged to an odor treatment device on shore through the shore pipeline. By providing a branch pipe connected to the gooseneck pipe, the present invention enables the gooseneck pipe to serve two purposes, making it easier for personnel to connect and use it, and reducing the impact of odors discharged from the cargo hold on shore personnel when the ship is docked. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an embodiment of the dual-purpose ventilator of the present utility model.

[0031] Figure 2 It is a structural schematic diagram of another embodiment of the dual-purpose ventilator of the utility model, in which a fan is provided in the gooseneck tube.

[0032] The reference numerals are as follows: 1-gooseneck; 11-straight section; 111-connecting tube; 112-extension tube; 113-bottom tube; 114-fan; 115-deck; 12-curved section; 121-first vent; 2-branch pipe; 21-second vent; 3-connecting flange; 31-blind plate; 4-opening and closing device; 41-cover plate; 42-connecting rod; 43-clamp; 44-positioning seat; 5-stop block. DETAILED DESCRIPTION

[0033] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0034] Thus, a feature indicated in this specification is intended to illustrate one of the features of one embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other, not explicitly described, combinations. Thus, unless otherwise noted, the described combinations are not intended to be limiting.

[0035] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of various components of the present invention are not absolute but relative. These descriptions are applicable when these components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, these directional indications will also change accordingly.

[0036] The present application provides a dual-purpose ventilator, which is generally arranged on the plane where the deck 115 of a ship is located, and is used to communicate with the cargo hold in the ship and facilitate the discharge of gas in the hold.

[0037] The dual-purpose ventilator of the present application includes a gooseneck 1, a connecting flange 3 and an opening and closing device 4. A branch pipe 2 is provided on the side wall of the gooseneck 1, and an axial end opening of the gooseneck 1 is connected to an air duct connected to the cargo hold. The air duct can be a hole structure surrounded by a pipe or a solid body. An opening and closing device 4 is provided on one of the axial openings at the other end of the gooseneck 1 and the opening of the branch pipe 2. The opening and closing device 4 is used to open the opening when the ship is in normal operation and to close the opening when the ship is docked. The connecting flange 3 is provided on the outer periphery of the other axial opening at the other end of the gooseneck 1 and the opening of the branch pipe 2. The connecting flange 3 is used to connect a blind plate 31 to cover the opening when the ship is in normal operation, and to switch the installed blind plate 31 to a detachable connection with an external shore pipeline when the ship is docked to achieve communication between the cargo hold and the shore pipeline. The shore pipeline can be a ship's shore connector that can be connected to the gas inlet of the odor treatment device on the shore. In the present application, a branch pipe 2 is provided on the gooseneck pipe 1, so that the gas in the cargo hold can be discharged from either the branch pipe 2 or the first vent 121 or the second vent 21 on the gooseneck pipe 1, thereby realizing the dual purpose of the gooseneck pipe 1, making it convenient for the staff to connect and use it, and reducing the impact of the odor discharged from the cargo hold on the shore staff when the ship docks.

[0038] Figure 1 A schematic structural diagram of a dual-purpose ventilator is shown.

[0039] Combine Figure 1 The dual-purpose ventilator comprises a gooseneck 1. The gooseneck 1 comprises a straight section 11 and a curved section 12 connected in sequence.

[0040] The straight-cylinder section 11 is a cylindrical structure that extends axially in a straight line and has openings at both axial ends. One axial end of the straight-cylinder section 11 is used to connect to an air duct, wherein the air duct is a pipe arranged below the deck 115 and connected to the cargo hold, so that the straight-cylinder section 11 is installed on the plane where the deck 115 is located and communicates with the cargo hold.

[0041] The curved section 12 is a cylindrical structure that extends axially along a curve and is open at both ends. The opening at one axial end of the curved section 12 connects and communicates with the opening at the other axial end of the straight section 11. The curved section 12 is curved relative to the axial direction of the straight section 11. The opening at the end of the curved section 12 axially facing away from the straight section 11 serves as a first vent 121. When the first vent 121 is open, gas within the cargo hold can be discharged through the gooseneck 1 and out of the first vent 121.

[0042] In this embodiment, the straight section 11 extends vertically, and the bottom of the straight section 11 is used to connect to the air duct. The curved section 12 is connected to the top of the straight section 11. The axial end of the curved section 12 away from the straight section 11 is bent downward, and the opening of the first vent 121 faces downward. The structure of the curved section 12 can reduce the backflow of rainwater. At the same time, because the airflow passes through the curved pipe, the sound will be reflected and consumed multiple times on the inner wall of the pipe, so that the structure of the curved section 12 can play a certain role in noise reduction and silencing. In specific use, the staff can lay a rat-proof net at the first vent 121 to reduce the entry of foreign objects or small animals.

[0043] Furthermore, a branch pipe 2 is provided on the sidewall of the gooseneck 1. This branch pipe 2 is a tubular structure with two openings at both ends. One axial end of the branch pipe 2 is connected to the gooseneck 1, allowing communication between the branch pipe 2 and the interior of the gooseneck 1. The other axial end of the branch pipe 2 extends away from the gooseneck 1. The end of the branch pipe 2 axially away from the gooseneck 1 is open to form a second vent 21. Specifically, when the first vent 121 is closed, the second vent 21 can be opened, allowing gas in the cargo hold to sequentially pass through the gooseneck 1 and the branch pipe 2 and be discharged from the second vent 21, achieving gas flow switching. When the first vent 121 is open, the second vent 21 can be closed, allowing gas in the cargo hold to be discharged from the first vent 121 through the gooseneck 1.

[0044] In the present application, the branch pipe 2 is arranged at the top of the gooseneck pipe 1, which can reduce the space occupied by the dual-purpose ventilator and facilitate space planning on the deck 115. In addition, it is also convenient for workers to remove and install the blind plate 31 on the branch pipe 2 and connect the external shore pipeline to the branch pipe 2.

[0045] Furthermore, the branch pipe 2 of this embodiment extends vertically. Specifically, the branch pipe 2 extends vertically so that the bottom opening of the branch pipe 2 communicates with the interior of the gooseneck pipe 1, and the top opening of the branch pipe 2 is used to connect to the blind plate 31 or the shore pipeline, further facilitating the disassembly and installation of the blind plate 31 or the shore pipeline by the staff.

[0046] Furthermore, the axis of the branch pipe 2 coincides with the axis of the straight section 11. The branch pipe 2 and the straight section 11 are arranged in correspondence with each other, further reducing the space occupied by the dual-purpose ventilator.

[0047] Furthermore, the outer diameter of the branch pipe 2 is identical to that of the straight section 11. Specifically, the outer diameters of the branch pipe 2 and the straight section 11 are identical, and their axes coincide, improving aesthetics and further reducing the space occupied by the dual-purpose ventilator. In practice, the branch pipe 2 and the straight section 11 of this embodiment can be integrally formed, specifically through injection molding or other methods. Alternatively, a flange ring can be provided at the top of the straight section 11, and the bottom flange of the branch pipe 2 can be connected to the flange ring.

[0048] In addition, the inner diameter of the branch pipe 2 is consistent with the inner diameter of the straight tube section 11 and is connected to each other, which facilitates the discharge of airflow and reduces noise.

[0049] In other embodiments, the branch pipe 2 may be provided on the side wall of the straight section 11 and communicate with the interior of the straight section 11, or provided on the side wall of the curved section 12 and communicate with the interior of the curved section 12, or provided at the junction of the straight section 11 and the curved section 12 and communicate between the straight section 11 and the curved section 12.

[0050] In other embodiments, the branch pipe 2 may extend horizontally or diagonally. The axis of the branch pipe 2 and the axis of the straight section 11 may be parallel or staggered. Furthermore, the outer diameter of the branch pipe 2 and the outer diameter of the straight section 11, and the inner diameter of the branch pipe 2 and the inner diameter of the straight section 11 may be the same or different. This embodiment does not limit the size or specific location of the branch pipe 2.

[0051] Furthermore, the dual-purpose ventilator in this embodiment also includes a connecting flange 3. The connecting flange 3 of the present application is arranged on the branch pipe 2 and is located on the outer periphery of the second vent 21. The connecting flange 3 is configured for detachable connection with the blind plate 31 or the external shore pipeline.

[0052] Specifically, the connecting flange 3 can be connected to the blind plate 31 or the external shore pipeline by bolts, wherein the outer periphery of the blind plate 31 and the outer periphery of the port of the shore pipeline are provided with bolt connection holes corresponding to the connecting flange 3.

[0053] The dual-purpose ventilator in this embodiment further includes an opening and closing device 4, which is disposed on the curved section 12 and is sealed on the first vent 121. Specifically, the opening and closing device 4 can quickly open or close the first vent 121, making it easy for staff to operate.

[0054] Furthermore, the opening and closing device 4 includes a cover plate 41 , at least one connecting rod 42 and a clip 43 .

[0055] One side of the cover plate 41 is pivotally connected to one side of the first vent 121. At least one side of the cover plate 41 is provided with an outward-facing slot along its circumference. The cover plate 41 can be rotated to open or close the first vent 121, enabling quick opening and closing of the first vent 121 and facilitating operator operation.

[0056] At least one positioning seat 44 is provided on the sidewall of the curved section 12. One axial end of a connecting rod 42 is pivotally connected to the positioning seat 44 in a one-to-one manner. When the cover plate 41 is flipped over to cover the first vent 121, the connecting rod 42 can be rotated and snapped into the slot one-to-one. A clip 43 is threadedly connected to the other axial end of the connecting rod 42. When the connecting rod 42 is in the slot, the clip 43 is located on the side of the slot facing away from the positioning seat 44, allowing the clip 43 to rotate closer to and abut against the cover plate 41. Specifically, the clip 43 is located on the side of the connecting rod 42 away from the rotation axis. After the cover 41 is flipped to close the first vent 121, the connecting rod 42 is rotated to engage with the slot on the cover 41. The clip 43 and the positioning seat 44 are now located on opposite sides of the slot. The clip 43 is then rotated to move closer to the cover 41 along the axial direction of the connecting rod 42 and abut against the cover 41, thereby clamping and fixing the cover 41. When it is necessary to open the first vent 121, the clip 43 is rotated to move away from the cover 41 along the axial direction of the connecting rod 42, thereby loosening the cover 41. The connecting rod 42 is then rotated to disengage the slot. At this point, the cover 41 can be rotated relative to the gooseneck 1 to open the first vent 121.

[0057] It should be noted that the straight section 11 has a certain height to ensure that the cover 41 on the opening and closing device 4 can smoothly rotate to open the first vent 121. There are multiple positioning seats 44 and connecting rods 42, and the positioning seats 44 are arranged at intervals along the outer periphery of the first vent 121.

[0058] Furthermore, a stopper 5 is provided on the outer wall of the straight section 11. The stopper 5 is located on the rotational trajectory of the cover plate 41, so that when the cover plate 41 opens the first vent 121, the stopper 5 can abut against the cover plate 41. When the first vent 121 needs to be opened, the cover plate 41 rotates, and the side of the cover plate 41 facing away from the first vent 121 can abut against the stopper 5, limiting the rotation range of the cover plate 41 and preventing the cover plate 41 from colliding with the side wall of the gooseneck tube 1.

[0059] In other embodiments, the connecting flange 3 may be provided on the first vent 121 for removably connecting to a blind plate 31 or a shore pipeline, while the opening and closing device 4 may be provided on the second vent 21 of the branch pipe 2 for opening or closing the second vent 21. When the vessel is in use, the opening and closing device 4 opens the second vent 21 and the blind plate 31 covers the first vent 121. When the vessel is docked, the opening and closing device 4 closes the second vent 21 and connects the shore pipeline to the second vent 21.

[0060] Figure 2 A schematic structural diagram of another embodiment of a dual-purpose ventilator is shown.

[0061] Figure 2 The embodiment shown is Figure 1 The difference between the illustrated embodiment and the conventional embodiment is that the straight section 11 includes a connecting tube 111, an extension tube 112, and a bottom tube 113 connected in sequence. The curved section 12 is connected to the connecting tube 111. The bottom tube 113 is disposed on a deck 115 and communicates with the air duct.

[0062] Specifically, the connecting tube 111, the extension tube 112 and the bottom tube 113 are connected in sequence from top to bottom and are coaxially arranged. The top opening of the connecting tube 111 is connected to the curved tube section 12. A fan 114 is provided in the extension tube 112. The fan 114 is configured to control the airflow from the air duct to the gooseneck 1 to improve the air outlet efficiency. The bottom end of the bottom tube 113 is provided on the deck 115 and is connected to the air duct under the deck 115 for connecting to the cargo hold through the air duct. Support ribs are provided between the outer periphery of the bottom tube 113 and the surface of the deck 115 to improve the installation stability of the gooseneck 1.

[0063] Furthermore, the branch pipe 2 is disposed on the sidewall of the connecting tube 111 or the curved tube section 12. The branch pipe 2 is positioned above the gooseneck tube 1 to facilitate installation and removal of the blind plate 31 or the shore pipeline. In this embodiment, the branch pipe 2 is disposed at the connection between the connecting tube 111 and the curved tube section 12. The branch pipe 2 extends vertically and has the same axial extension direction and outer diameter as the connecting tube 111.

[0064] Furthermore, flange connections are adopted between the connecting tube 111 and the extension tube 112 , and between the extension tube 112 and the bottom tube 113 , so as to facilitate transportation and the installation of the fan 114 in the extension tube 112 .

[0065] In some other embodiments, the connecting tube 111, the extending tube 112 and the bottom tube 113 may be an integrally formed structure, and the details may refer to the structure of the straight tube section 11 in the first embodiment.

[0066] In this embodiment, the connecting tube 111, the curved tube section 12 and the branch pipe 2 are integrally formed to form a pipe fitting with three openings, which is convenient for connection and installation.

[0067] The opening and closing device 4 in this embodiment can refer to Figure 1 The embodiment describes the structure of the opening and closing device 4, which includes a cover plate 41, a connecting rod 42, and a clamping member 43. One side of the cover plate 41 is rotatably connected to one side of the curved barrel section 12, and a slot is provided on the other side of the cover plate 41. When the first vent 121 needs to be closed, the cover plate 41 is flipped over to close the first vent 121, and then the connecting rod 42 is rotated so that the connecting rod 42 snaps into the slot on the cover plate 41. At this time, the clamping member 43 and the positioning seat 44 are located on opposite sides of the slot. The clamping member 43 is then rotated so that the clamping member 43 continuously approaches the cover plate 41 along the axial direction of the connecting rod 42 and abuts against the cover plate 41, thereby clamping and fixing the cover plate 41. When the first vent 121 needs to be opened, the clamp 43 is rotated so that the clamp 43 moves away from the cover plate 41 along the axial direction of the connecting rod 42 to loosen the cover plate 41. Then the connecting rod 42 is rotated so that the connecting rod 42 is disengaged from the slot. At this time, the cover plate 41 can be rotated relative to the gooseneck tube 1 to open the first vent 121.

[0068] In this embodiment, the stopper 5 is disposed on the outer wall of the connecting tube 111 to prevent the cover plate 41 of the opening and closing device 4 from colliding with the extending tube 112 when the first vent 121 is opened.

[0069] The present application also provides a ship, comprising the aforementioned dual-purpose ventilator and a hull. A cargo hold and an air duct are provided within the hull, and a deck is provided on top of the hull. One axial end of the air duct opens and connects to the cargo hold, while the other axial end of the air duct opens and extends upward to the deck. The straight section is disposed on the deck and correspondingly connects to the air duct. The dual-purpose ventilator is located on the deck, with the straight section 11, the air duct, and the cargo hold connected in sequence. Gas within the cargo hold can be discharged sequentially from the air duct, the straight section 11, the branch pipe 2, and the second vent 21, or sequentially from the air duct, the straight section 11, the curved section 12, and the first vent 121.

[0070] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A dual-purpose ventilator, characterized in that: include: The gooseneck tube comprises a straight section and a curved section connected in sequence, wherein one end of the straight section axially away from the curved section is open for connecting to the ventilation duct, and the one end of the curved section axially away from the straight section is open as a first ventilation opening; a branch tube is provided on the side wall of the gooseneck tube, the branch tube being in communication with the interior of the gooseneck tube, and the one end of the branch tube axially away from the gooseneck tube is open as a second ventilation opening; a connecting flange, disposed on an outer periphery of one of the first vent and the second vent, the connecting flange being configured to be detachably connected to a blind plate or an external shore pipeline; An opening and closing device is provided on the other of the first vent and the second vent, and is configured to open or close the opening.

2. The dual-purpose ventilator according to claim 1, characterized in that: The opening and closing device is provided on the first vent; the connecting flange is provided on the outer periphery of the second vent; wherein: The first vent is opened by the opening and closing device, and the blind plate is connected to the connecting flange and closes the second vent; When the opening and closing device closes the first vent, the connecting flange is connected to the shore pipeline, so that the second vent is communicated with the shore pipeline.

3. The dual-purpose ventilator according to claim 2, characterized in that: The straight tube section extends vertically, and the bottom of the straight tube section is used to connect with the air duct; The curved tube section is connected to the top of the straight tube section, and one axial end of the curved tube section away from the straight tube section is bent downward, and the opening of the first vent faces downward.

4. The dual-purpose ventilator according to claim 3, characterized in that: The branch pipe is arranged at the top of the gooseneck pipe; The branch pipe extends vertically.

5. The dual-purpose ventilator according to claim 3, characterized in that: The axis of the branch pipe and the axis of the straight tube section coincide with each other; The outer diameter of the branch pipe is the same as the outer diameter of the straight tube section.

6. The dual-purpose ventilator according to claim 2, characterized in that: The opening and closing device includes a cover plate, at least one connecting rod and a clip; One side of the cover plate is rotatably connected to one side of the first vent, and at least one side of the cover plate along its circumference is provided with a slot opening outward; At least one positioning seat is provided on the side wall of the curved barrel section, and one axial end of the connecting rod is rotatably connected to the positioning seat in a one-to-one manner, so that when the cover plate is flipped to a position covering the first vent, the connecting rod can be rotated and snapped into the snap groove in a one-to-one manner; The clip is threadedly connected to the other axial end of the connecting rod. When the connecting rod is located in the slot, the clip is located on the side of the slot facing away from the positioning seat, so that the clip can be rotated to approach and abut against the cover plate.

7. The dual-purpose ventilator according to claim 6, characterized in that: A stop block is provided on the outer side wall of the straight section, and the stop block is located on the rotation track of the cover plate, so that when the cover plate opens the first vent, the stop block can abut against the cover plate.

8. The dual-purpose ventilator according to claim 1, characterized in that: The straight tube section includes a connecting tube, an extension tube and a bottom tube connected in sequence; The curved tube section is connected to the connecting tube, and the branch pipe is arranged on the side wall of the connecting tube or the curved tube section; A fan is provided in the extension tube, and the fan is configured to control the airflow from the air duct to the gooseneck tube; The bottom cylinder is arranged on the deck and is communicated with the air duct.

9. The dual-purpose ventilator according to claim 8, characterized in that: The connecting tube and the extension tube, and the extension tube and the bottom tube are connected by flanges; and / or The connecting tube, the bent tube section and the branch pipe are formed in one piece.

10. A ship, characterized in that: include: The dual-purpose ventilator according to any one of claims 1 to 9; A hull, wherein a cargo hold and an air duct are provided inside the hull, and a deck is provided on the top of the hull; an axial end opening of the air duct is connected to the cargo hold, and the other axial end opening of the air duct extends upward to the deck, and the straight tube section is arranged on the deck and is correspondingly connected to the air duct.

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