Ship chimney isolation ventilation device

Abstract

The invention provides a ship chimney isolation ventilation device. The ship chimney isolation ventilation device comprises a ventilator; the flow guide parts are configured to be arranged around the chimney, and each flow guide part is provided with a ventilation hole; one end of the ventilation pipe is connected with the ventilator, the ventilation holes in the multiple flow guide parts are all communicated with the other end of the ventilation pipe, and the ventilator supplies air to the multiple flow guide parts through the ventilation pipe; and the gas ejected from the plurality of flow guide pieces forms an air curtain around the chimney so as to form an area for isolating flue gas. The device solves the problem that smoke in a living cabin of a whole ship is diffused due to the fact that chimney smoke is sucked into an air conditioner fresh air system.

Description

Technical Field

[0001] The present invention relates to the field of ship ventilation, in particular to a ship chimney isolation ventilation device. Background Art

[0002] Ship chimneys primarily discharge exhaust gases from engines and boilers. These gases typically contain pollutants such as sulfides, nitrogen oxides, particulate matter, and carbon dioxide. These pollutants can easily enter the air conditioning system due to external wind and negative pressure from air conditioning outlets, posing a health threat to crew members.

[0003] At present, when designing ships, to prevent exhaust gas emitted from chimneys from flowing back into the ship's cabins through the ventilation system, the following methods are commonly used: First, installing baffles inside the chimney to prevent smoke backflow, but this may increase smoke emission resistance and affect the smoke exhaust effect; second, arranging the fresh air inlet as far away from the chimney as possible, but this distance is limited due to the upper construction location; third, installing purification devices in the air conditioning and fresh air system to reduce the degree of fresh air pollution, but this will increase the resistance of the fresh air system and the fan pressure head, and also bring new noise hazards to the air conditioning and ventilation system. Fourth, while meeting the requirements of appearance and center of gravity, the chimney height is increased as much as possible. However, when the ship is anchored or sailing, when the external wind is insufficient, there is no wind, or the wind is erratic, the smoke naturally emitted from the chimney is often sucked into the air conditioning and fresh air system, posing a hidden danger to the fresh air supply quality of the entire ship's air conditioning and ventilation system. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the related art, an object of the present invention is to provide a ship chimney isolation ventilation device.

[0005] To achieve the above-mentioned objectives and other related objectives, the present invention provides a ship chimney isolation ventilation device, comprising: a ventilator; a plurality of guide members, which are configured to be arranged around the chimney, each of the guide members being provided with ventilation holes; a ventilation pipe, one end of the ventilation pipe being connected to the ventilator, and the ventilation holes on the plurality of the guide members are all connected to the other end of the ventilation pipe, wherein the ventilator supplies air to the plurality of the guide members through the ventilation pipe, and the gas ejected from the plurality of the guide members forms a wind curtain around the chimney to form an area isolating the smoke.

[0006] Optionally, the guide member includes a body and a rotating ball head, the body is provided with a receiving groove for accommodating a partial structure of the rotating ball head, the rotating ball head is rotatably arranged in the receiving groove, and the ventilation hole is provided in the rotating ball head.

[0007] Optionally, the ship chimney isolation ventilation device also includes a driving cylinder, each of the rotating ball heads is connected to three of the driving cylinders, the three driving cylinders are used to drive the rotating ball heads to rotate relative to the main body, and each of the driving cylinders is rotatably arranged on the ship structure.

[0008] Optionally, the ship chimney isolation ventilation device also includes an atmospheric wind direction and speed detector and a control box. The atmospheric wind direction and speed detector, the ventilator and the driving cylinder are all electrically connected to the control box. The control box adjusts the speed of the ventilator according to the wind direction and wind speed detected by the atmospheric wind direction and speed detector and changes the direction of the rotating ball head through the driving cylinder to change the direction of the wind curtain, so that the smoke is away from the air inlet of the air-conditioning fresh air system.

[0009] Optionally, the ship chimney isolation ventilation device also includes a multi-component pollutant concentration detector, which is arranged near the air inlet of the air-conditioning fresh air system and is electrically connected to the control box. The control box adjusts the speed of the fan according to the detection results and changes the direction of the rotating ball head through the driving cylinder to change the direction of the wind curtain, so that the smoke is away from the air inlet of the air-conditioning fresh air system.

[0010] Optionally, the ship chimney isolation ventilation device also includes a drainage box, through which the ventilation pipe and the ventilator are connected, the drainage box is stepped, the ventilator is connected to the higher end of the drainage box, the ventilation pipe is connected to the top surface of the drainage box, and the bottom of the drainage box is used for drainage.

[0011] Optionally, a drain pipe is provided at the bottom of the drainage box, and a ball valve is provided on the drain pipe. The ball valve is used to control the on-off of the drain pipe to discharge the water in the drainage box.

[0012] Optionally, the ship chimney isolation ventilation device further includes a control valve, and a control valve is provided between each guide member and the ventilation pipe, and the control valve is used to control the gas flow ejected from the corresponding guide member.

[0013] As described above, the ship chimney isolation ventilation device of the present invention has the following beneficial effects: It forms an air curtain around the chimney to redirect the exhaust smoke, thereby directing it away from the air inlet of the air conditioning system. This device, without changing its appearance, center of gravity, or stealth, solves the problem of chimney smoke being drawn into the air conditioning system, causing smoke to permeate the ship's living quarters. This device can also reduce the need for air purification equipment and ventilation duct cleaning equipment in the air conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Shown is a schematic diagram of a ship chimney isolation ventilation device according to an embodiment of the present invention.

[0015] Figure 2 Shown is a schematic diagram of a flow guide member and a driving cylinder in an embodiment of the present invention.

[0016] Figure 3 Shown is a schematic diagram of a drainage box according to an embodiment of the present invention.

[0017] Component number description

[0018] 1. Fan; 2. Ventilation pipe; 3. Control valve; 4. Drain box; 5. Control box; 6. Atmospheric wind direction and speed detector; 7. Multi-component pollutant concentration detector; 8. Main body; 9. Rotating ball head; 10. Driving cylinder; 11. Discharge seat plate; 12. Ball valve; 13. Drain pipe. DETAILED DESCRIPTION

[0019] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0020] For example, when describing the embodiments of the present invention, cross-sectional views of device structures may be partially enlarged to scale for ease of explanation. Furthermore, these schematic views are merely illustrative and should not limit the scope of the present invention. Furthermore, in actual manufacturing, three-dimensional dimensions, including length, width, and depth, should be included.

[0021] For ease of description, spatially relative terms such as "under," "below," "below," "below," "above," and "on" may be used herein to describe the relationship of one element or feature to other elements or features shown in the drawings. It will be understood that these spatially relative terms are intended to encompass orientations of the device in use or operation in addition to the orientation depicted in the drawings. Additionally, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may be present. As used herein, "between" is inclusive of both endpoints.

[0022] In the context of the present application, a structure described as a first feature being "above" a second feature may include embodiments where the first and second features are formed in direct contact, and may also include embodiments where an additional feature is formed between the first and second features, such that the first and second features may not be in direct contact.

[0023] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0024] like Figure 1 As shown, this embodiment provides a ship chimney isolation ventilation device, which includes a ventilator 1, a ventilation pipe 2, a flow guide, a control valve 3, a detector, a drainage box 4, and a control box 5. The ventilator 1 is a high-temperature resistant variable-frequency ventilator 1, the ventilation pipe 2 is a high-temperature resistant ventilation pipe 2, the flow guide is used to guide the direction of air flow, the control valve 3 can be an air volume control valve, and the detectors include an atmospheric wind direction and speed detector 6 and a multi-component pollutant concentration detector 7.

[0025] One end of the ventilation pipe 2 is connected to the ventilator 1, and the other end of the ventilation pipe 2 is connected to a flow guide. In this embodiment, there are multiple flow guides, each of which is connected to a control valve 3. Each flow guide has a ventilation hole. The multiple flow guides are connected to the ventilation pipe 2 through corresponding control valves 3. The multiple flow guides are evenly arranged around the chimney. Since the control valves 3 are air volume control valves, they can be used to control the gas flow through each flow guide.

[0026] When the ventilator 1 is operating, it draws air in and delivers the gas to the guide member through the ventilation pipe 2. The guide member then guides the gas out. Because multiple guide members are arranged around the chimney, when the multiple guide members simultaneously eject gas, the gas they eject simultaneously forms an air curtain around the chimney, which can be used to guide the flow direction of the smoke.

[0027] like Figure 1 and Figure 2 As shown, the deflector comprises a body 8 and a rotating ball head 9. The rotating ball head 9 is driven by a drive cylinder 10 to rotate relative to the body 8. The body 8 is mounted on the ship structure and has a receiving slot that accommodates part of the rotating ball head 9. The rotating ball head 9 can rotate 360 ​​degrees within the slot. The rotating ball head 9 is provided with ventilation holes. There are multiple drive cylinders 10, three in this embodiment. Each of the three drive cylinders 10 is rotatably connected to the ship structure, and the output ends of the three drive cylinders 10 are connected to the edge of the rotating ball head 9. For example, the output ends of the three drive cylinders 10 are connected to the edge of the rotating ball head 9 at intervals of 120 degrees. When the output ends of the three drive cylinders 10 extend and retract, the rotating ball head 9 rotates within the body 8, adjusting the ventilation holes and thereby changing the flow direction of the air curtain and, consequently, the flow direction of the smoke.

[0028] The control valves 3, detectors, ventilators 1 and driving cylinders 10 on each ventilation pipe 2 are all connected to the control box 5, which is used to control the coordinated operation of the control valves 3, detectors, ventilators 1 and driving cylinders 10.

[0029] The working principle of this embodiment is to use airflow guide structures arranged around the chimney exhaust port to guide the direction of the flue gas based on the characteristics of the ship's chimney gas emissions and the external wind conditions, forming a regionally variable isolation system to prevent the flue gas from flowing back into the air conditioning fresh air inlet. When this device is in operation, the atmospheric wind direction and speed detector 6 first detects the wind direction and wind speed in the current environment. The control box 5 then controls the ventilator 1 to start and adjust the speed of the ventilator 1 to match the required ventilation volume. At the same time, the driving cylinder 10 in each guide member adjusts the direction of the rotating ball head 9, so that the guide members around the chimney are oriented away from the air conditioning fresh air system inlet. When the air transported by the ventilator 1 is discharged from the guide member through the ventilation pipe 2, the air discharged from the multiple guide members forms a wind curtain around the chimney, thereby guiding the flue gas away from the air conditioning fresh air system inlet.

[0030] The multi-component pollutant concentration detector 7 is installed near the air inlet of the air-conditioning fresh air system. If the multi-component pollutant concentration detector 7 detects the presence of harmful substances near the air inlet of the air-conditioning fresh air system, it means that smoke is flowing to the air inlet of the air-conditioning fresh air system. At this time, the control box 5 can guide the smoke away from the air inlet of the air-conditioning fresh air system by adjusting the air supply volume of the ventilator 1 or changing the direction of the air curtain.

[0031] like Figure 1 and Figure 3 As shown, in another embodiment, the ventilation pipe 2 and the ventilator 1 are connected via a drain box 4. For example, the drain box 4 has a stepped shape, with the higher end of the drain box 4 connected to the ventilator 1, the top of the drain box 4 connected to the ventilation pipe 2, and the lower end of the drain box 4 used for drainage. The drain box 4 is equipped with a drain seat 11, a ball valve 12, and a drain pipe 13. The drain seat 11 is located at the bottom of the lower end of the drain box 4. The drain pipe 13 is bolted to the drain seat 11, and the ball valve 12 is flanged to the drain pipe 13.

[0032] When it rains, rainwater will enter from the guide piece and flow along the ventilation pipe 2 to the lower end of the drainage box 4. At this time, the ball valve 12 is opened to drain the rainwater to the deck leakage system to ensure that the rainwater does not flow into the ventilator 1, avoiding the motor in the ventilator 1 from being flooded and short-circuited.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A ship chimney isolation ventilation device, characterized in that: include: ventilators; A plurality of guide members are configured to surround the chimney, each of the guide members being provided with a ventilation hole; A ventilation pipe, one end of which is connected to the ventilator, and the ventilation holes on the plurality of guide members are all connected to the other end of the ventilation pipe, wherein the ventilator supplies air to the plurality of guide members through the ventilation pipe, and the gas ejected from the plurality of guide members forms a wind curtain around the chimney to form an area isolating the smoke.

2. The ship chimney isolation ventilation device according to claim 1, characterized in that: The guide member includes a body and a rotating ball head. The body is provided with a receiving groove for receiving a partial structure of the rotating ball head. The rotating ball head is rotatably arranged in the receiving groove. The ventilation hole is provided in the rotating ball head.

3. The ship chimney isolation ventilation device according to claim 2, characterized in that: The ship chimney isolation ventilation device also includes a driving cylinder, each of the rotating ball heads is connected to three of the driving cylinders, the three driving cylinders are used to drive the rotating ball heads to rotate relative to the body, and each of the driving cylinders is rotatably arranged on the ship structure.

4. The ship chimney isolation ventilation device according to claim 3, characterized in that: The ship chimney isolation ventilation device also includes an atmospheric wind direction and speed detector and a control box. The atmospheric wind direction and speed detector, the ventilator and the driving cylinder are all electrically connected to the control box. The control box adjusts the speed of the ventilator according to the wind direction and wind speed detected by the atmospheric wind direction and speed detector and changes the direction of the rotating ball head through the driving cylinder to change the direction of the wind curtain, so that the smoke is away from the air inlet of the air-conditioning fresh air system.

5. The ship chimney isolation ventilation device according to claim 4, characterized in that: The ship chimney isolation ventilation device also includes a multi-component pollutant concentration detector, which is arranged near the air inlet of the air-conditioning fresh air system and is electrically connected to the control box. The control box adjusts the speed of the fan according to the detection results and changes the direction of the rotating ball head through the driving cylinder to change the direction of the wind curtain, so that the smoke is away from the air inlet of the air-conditioning fresh air system.

6. The ship chimney isolation ventilation device according to claim 1, characterized in that: The ship chimney isolation ventilation device also includes a drainage box, through which the ventilation pipe and the ventilator are connected. The drainage box is stepped, the ventilator is connected to the higher end of the drainage box, the ventilation pipe is connected to the top surface of the drainage box, and the bottom of the drainage box is used for drainage.

7. The ship chimney isolation ventilation device according to claim 6, characterized in that: A drain pipe is provided at the bottom of the drainage box, and a ball valve is provided on the drain pipe. The ball valve is used to control the on-off of the drain pipe to discharge the water in the drainage box.

8. The ship chimney isolation ventilation device according to claim 1, characterized in that: The ship chimney isolation ventilation device also includes a control valve. A control valve is provided between each guide member and the ventilation pipe. The control valve is used to control the gas flow ejected from the corresponding guide member.

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