CN220667668U - Ship exhaust device - Google Patents

Abstract

An exhaust duct is arranged at one end of an exhaust port of the ship exhaust pipe, a water curtain plate is arranged in the exhaust duct, a water sleeve is arranged outside the exhaust duct, and cooling water enters from the water sleeve pipe and is sprayed to the water curtain plate through spray holes on the exhaust duct, so that a water curtain is formed, and flue gas and water drops are mixed; and a heat-resistant hose is further arranged at the outlet of the exhaust pipe, the heat-resistant hose is opened under the influence of smoke, the exhaust is smooth, and the smoke naturally contracts when stopped, so that seawater is prevented from entering the exhaust pipe. The ship exhaust device can effectively improve the purification effect of the smoke, improve the comfort of navigation personnel and reduce the environmental pollution; the exhaust hose can be automatically opened or closed when the ship sails or stops sailing, manual operation is not needed, and the operation convenience and the ship safety are greatly improved.

Description

Ship exhaust device

Technical Field

The utility model relates to a ship structure, in particular to a device for discharging exhaust gas in a ship.

Background

The exhaust system of a ship is an important component of the ability of the ship to sail stably and safely. The engine is connected to blast pipe one end of current boats and ships, and the other end passes the hull lamella to the outboard to with the exhaust gas introduction ship outboard, these flue gas can drift to deck area very easily to cause the negative effect to crewman and passenger's travelling comfort. Therefore, some current ships can connect a seawater guiding pipe at the exhaust port of the exhaust pipe, and discharge the introduced seawater after mixing with the smoke, thereby reducing the influence of the smoke. However, the contact area between the seawater and the flue gas is extremely limited, so that the flue gas purification effect is difficult to achieve the expected requirement.

In addition, the exhaust pipe of the existing ship is provided with a baffle at the exhaust port to prevent rainwater and seawater from entering the exhaust pipe. However, when the ship is in a sailing state, the stern of the ship is often slightly inclined, so that the baffle opens the exhaust port under the influence of gravity, and the sea wave backflow preventing function of the ship cannot meet the use requirement. Therefore, the baffle is often required to be manually closed and fixed by a shipman, and then manually opened when the ship starts, so that the operation is extremely troublesome, and the safety of the ship is easily influenced because the baffle is forgotten to be opened or closed.

Disclosure of Invention

The utility model aims to provide the ship exhaust device which has high smoke purification degree and is convenient for opening and closing the exhaust port, so that the emission of smoke and the need of manual operation are reduced, and the navigation comfort and the operation convenience are improved.

The utility model relates to a ship exhaust device, which comprises an exhaust pipe arranged on a ship, wherein an exhaust duct for smoke circulation is arranged at one end of an exhaust port of the exhaust pipe, a plurality of spray holes are formed in the pipe wall of the exhaust duct, a water curtain plate is arranged in the exhaust duct, the spray holes face the water curtain plate, a water sleeve pipe which covers all the spray holes is arranged outside the exhaust duct, and the water sleeve pipe is connected with a water inlet pipe for conveying water into the water sleeve pipe; the exhaust port of the exhaust pipe is also provided with an exhaust hose which is closed in a natural state, and smoke generated by ship navigation opens the exhaust hose and is discharged outwards.

Further, the surface of the water curtain plate is a rough surface or is provided with a convex hull.

Further, the water curtain plate is wave-shaped.

Further, the water curtain plate comprises a wave-shaped main curved plate and an auxiliary curved plate arranged in the middle of the main curved plate.

Further, the auxiliary curved plate is an arc-shaped plate.

Further, the spray holes are uniformly arranged on the pipe wall of the exhaust pipe; alternatively, the density of the spray holes gradually decreases from the position opposite to the water curtain plate to the position of the connecting end of the exhaust duct and the water curtain plate.

Further, the exhaust pipe includes an inner pipe provided in the vessel and an outer pipe extending to the outside through the vessel, and both ends of the exhaust pipe are detachably connected to the inner pipe and the outer pipe.

Further, the exhaust hose is a heat-resistant hose which is naturally contracted and closed.

Further, there is the release pipe, and the one end intercommunication blast pipe of release pipe, the other end communicates outside the boats and ships and installs the check valve of one-way circulation.

When the ship is sailing, the smoke generated by internal equipment such as an engine flows out along the exhaust pipe and is discharged after passing through the exhaust pipe and the exhaust hose. When passing through the exhaust duct, the cooling water flows into the water sleeve through the water inlet pipe, then is sprayed into the water curtain plate in the exhaust duct from the spray holes, and the sprayed cooling water collides with the water curtain plate to generate rebound and sputtering, so that water columns are converted into fine water droplets, and water mist is formed in the exhaust duct, thereby greatly increasing the contact area between the cooling water and the flue gas, and enabling the flue gas to be better dissolved and mixed in the cooling water. The smoke mixed by the water curtain in the exhaust duct is continuously discharged to the exhaust hose, and the exhaust hose is opened after being influenced by the mixed smoke to form positive pressure, so that the mixed smoke is smoothly discharged out of the ship; when the ship stops sailing and the exhaust stops discharging, the exhaust hose is automatically closed, so that the seawater is prevented from flowing backwards. The beneficial effects are that: the ship exhaust device can effectively improve the purification effect of the smoke, improve the comfort of navigation personnel and reduce the environmental pollution; the exhaust hose can be automatically opened or closed when the ship sails or stops sailing, manual operation is not needed, and the operation convenience and the ship safety are greatly improved.

Drawings

Fig. 1 is a schematic view of the structure of a stern section of a ship and a ship exhaust apparatus.

Fig. 2 is a schematic structural view of the hose in an operating state.

Fig. 3 is a schematic view of the structure of the hose in a non-operating state.

Fig. 4 is a schematic view of the connection structure of the exhaust duct, the water curtain plate and the water jacket.

FIG. 5 is a schematic view of the structure of section A-A of FIG. 4.

Fig. 6 is a schematic view of the structure of the water curtain plate.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, rear, top, bottom, inner, outer, vertical, lateral, longitudinal, counterclockwise, clockwise, circumferential, radial, axial … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

If there is a description of "first" or "second" etc. in an embodiment of the present utility model, the description of "first" or "second" etc. is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a ship exhaust device.

In the embodiment of the utility model, the ship exhaust device comprises an exhaust pipe 1 arranged on a ship, an exhaust duct 2 for smoke circulation is arranged at one end of an exhaust port of the exhaust pipe, a plurality of spray holes 21 are formed in the pipe wall of the exhaust duct, a water curtain plate 3 is arranged in the exhaust duct, the spray holes are arranged towards the water curtain plate, a water jacket pipe 4 for coating all spray holes is arranged outside the exhaust duct, and the water jacket pipe is connected with a water inlet pipe 5 for conveying water into the water jacket pipe; the exhaust port of the exhaust pipe is also provided with an exhaust hose 6 which is closed in a natural state, and smoke generated by ship navigation opens the exhaust hose and is discharged outwards.

As shown in fig. 1-6, during the voyage of the ship 10, the smoke generated by internal equipment such as an engine flows out along the exhaust pipe and is discharged through the exhaust pipe and the exhaust hose. When passing through the exhaust duct, the cooling water flows into the water sleeve through the water inlet pipe, then is sprayed into the water curtain plate in the exhaust duct from the spray holes, and the sprayed cooling water collides with the water curtain plate to generate rebound and sputtering, so that water columns are converted into fine water droplets, and water mist is formed in the exhaust duct, thereby greatly increasing the contact area between the cooling water and the flue gas, and enabling the flue gas to be better dissolved and mixed in the cooling water. The smoke mixed by the water curtain in the exhaust duct is continuously discharged to the exhaust hose, and the exhaust hose is opened after being influenced by the mixed smoke to form positive pressure, so that the mixed smoke is smoothly discharged out of the ship; when the ship stops sailing and the exhaust stops discharging, the exhaust hose is automatically closed, so that the seawater is prevented from flowing backwards. The ship exhaust device can effectively improve the purification effect of the smoke, improve the comfort of navigation personnel and reduce the environmental pollution; the exhaust hose can be automatically opened or closed when the ship sails or stops sailing, manual operation is not needed, and the operation convenience and the ship safety are greatly improved.

As shown in fig. 1 to 3, the exhaust pipe 1 includes an inner pipe provided inside the vessel and an outer pipe extending to the outside through the vessel, and both ends of the exhaust duct 2 are detachably connected to the inner pipe and the outer pipe through flanges 7, thereby improving the convenience of the assembly and maintenance of the exhaust duct. In addition, the end part of the exhaust hose 6 can be stretched into water in a natural state, when the exhaust hose encounters sea waves, the exhaust hose can be naturally deformed, and the sea waves can not flow into the exhaust pipe from the exhaust hose; or the exhaust hose 6 can also be made of a heat-resistant hose which can be naturally contracted and closed, and when the ship sails, the heat-resistant hose can be opened by heating expansion due to the fact that the smoke exhausted from the engine has higher temperature, so that the smoke can be smoothly exhausted; when the ship is in a ship navigation stop state, the temperature in the heat-resistant hose gradually decreases from high temperature to normal temperature, the pressure in the exhaust pipe also gradually decreases, and the heat-resistant hose gradually contracts and flattens, so that seawater is prevented from entering. Besides, the ship exhaust device is also provided with a pressure relief pipe 8, one end of the pressure relief pipe is communicated with the exhaust pipe 1, the other end of the pressure relief pipe is communicated with the outside of the ship and is provided with a one-way circulating check valve 9, when the ship engine is stopped from working, the air pressure in the exhaust pipe can be gradually reduced to negative pressure, the heat-resistant hose can be further tightened, external air flows into the exhaust pipe through the pressure relief pipe, so that the air pressure is balanced, the heat-resistant hose is in a natural state, and the outlet of the heat-resistant hose is in a closed flat shape, so that seawater is prevented from entering.

As shown in fig. 5 and 6, the surface of the water curtain plate 3 may be provided with a rough surface, or a convex hull (not shown) may be provided on the surface of the water curtain plate, so that the cooling water sprayed onto the water curtain plate forms a water curtain with a greater degree and uniformity, thereby enabling the flue gas to be mixed with the cooling water to a greater degree and further improving the purification effect of the flue gas. The water curtain plate 3 can be set to be wavy, or comprises a main curved plate 31 with wavy shape, and an auxiliary curved plate 32 arranged in the middle of the main curved plate, wherein the auxiliary curved plate 32 is an arc-shaped plate, so that the contact area of cooling water and the water curtain plate is increased, the rebound effect of water flow can be improved by utilizing the auxiliary curved plate, a water curtain with a larger degree and more uniformity can be formed, and the purification effect of smoke can be improved. In this case, the spray holes 21 may be uniformly disposed on the wall of the exhaust duct 2, or the density of the spray holes 21 may be gradually reduced from the position opposite to the water curtain plate 3 to the position of the connection end of the exhaust duct 2 and the water curtain plate, so that the water curtain plate is better utilized to form more water droplets by cooling water, and excessive cooling water may be prevented from being sprayed to the side end of the water curtain plate to effectively form water droplets.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The utility model provides a boats and ships exhaust apparatus, includes blast pipe (1) that sets up on boats and ships, its characterized in that: an exhaust duct (2) for flue gas circulation is arranged at one end of an exhaust port of the exhaust pipe, a plurality of spray holes (21) are formed in the pipe wall of the exhaust duct, a water curtain plate (3) is arranged in the exhaust duct, the spray holes are arranged towards the water curtain plate, a water sleeve (4) for covering all the spray holes is arranged outside the exhaust duct, and the water sleeve is connected with a water inlet pipe (5) for conveying water into the water sleeve; the exhaust port of the exhaust pipe is also provided with an exhaust hose (6) which is closed in a natural state, and smoke generated by ship navigation opens the exhaust hose and is discharged outwards.

2. The marine exhaust according to claim 1, wherein: the surface of the water curtain plate (3) is a rough surface or is provided with a convex hull.

3. The marine exhaust according to claim 1, wherein: the water curtain plate (3) is wave-shaped.

4. A marine exhaust means according to claim 3, wherein: the water curtain plate (3) comprises a wave-shaped main curved plate (31) and a secondary curved plate (32) arranged in the middle of the main curved plate.

5. The marine exhaust according to claim 4, wherein: the auxiliary curved plate (32) is an arc-shaped plate.

6. Marine exhaust installation according to any of claims 1-5, wherein: the spray holes (21) are uniformly arranged on the pipe wall of the exhaust pipe (2).

7. The marine exhaust means according to claim 3, 4 or 5, wherein: the density of the spray holes (21) gradually decreases from the position opposite to the water curtain plate (3) to the connecting end of the exhaust duct (2) and the water curtain plate.

8. The marine exhaust according to claim 1, wherein: the exhaust pipe (1) comprises an inner pipe arranged in the ship and an outer pipe extending to the outside through the ship, and two ends of the exhaust pipe (2) are detachably connected with the inner pipe and the outer pipe.

9. The marine exhaust according to claim 1, wherein: the exhaust hose (6) is a heat-resistant hose which is naturally contracted and closed.

10. Marine exhaust according to claim 1 or 9, wherein: the ship is provided with a pressure relief pipe (8), one end of the pressure relief pipe is communicated with the exhaust pipe (1), and the other end of the pressure relief pipe is communicated with the outside of the ship and is provided with a one-way circulation check valve (9).