Water jacket exhaust pipe for high-speed boat

Abstract

The utility model belongs to the field of exhaust pipes, and particularly relates to a water jacket exhaust pipe for a main engine of a high-speed boat. A water jacket exhaust pipe for a high-speed boat comprises an exhaust pipe body and an air inlet pipe and is characterized in that the exhaust pipe body comprises a first straight pipe, a second straight pipe and a connecting elbow connecting the first straight pipe body and the second straight pipe body, the included angle between the axis of the first straight pipe body and the axis of the second straight pipe body is 161 degrees, a connecting flange is arranged at the end of the first straight pipe body, and the connecting flange is connected with the air inlet pipe body. The air inlet pipe is coaxially arranged in the second straight pipe, a sealing plate and an atomizing end plate are arranged between the outer wall of the air inlet pipe and the inner wall of the second straight pipe, a water inlet pipe is arranged on the second straight pipe, and the axis of the water inlet pipe is tangent to the outer wall of the air inlet pipe; according to the water jacket exhaust pipe for the high-speed boat, the bent structure is adopted, the size is small, installation is convenient, further, the structure of the atomization end plate is improved, the amount of cooling water above the air inlet pipe is increased, and the cooling effect is improved.

Description

Technical Field

[0001] The utility model belongs to the field of exhaust pipes, and particularly relates to a water jacket exhaust pipe for the main engine of a high-speed boat. Background Art

[0002] The ship exhaust pipe is an important outfitting part on the ship and also an important component of the ship exhaust system.

[0003] The water jacket exhaust pipe type exhaust system is a very widely used exhaust method for engines on diesel engines at present. The cooling water on the cylinder head of the diesel engine is introduced into the water jacket exhaust pipe in the diesel engine exhaust system through a connecting water pipe, so as to cool down the high-temperature diesel engine exhaust pipe and ensure the normal operation of the diesel engine.

[0004] With the improvement of the engine power, the structure of the water jacket exhaust pipe is becoming more and more complex and the length is also getting longer, which is not suitable for small high-speed boats. In order to meet the installation and use requirements of high-speed boats, the utility model provides a new water jacket exhaust pipe. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the utility model designs a water jacket exhaust pipe for a high-speed boat with a bent structure, small size and convenient installation. Further, the structure of the atomizing end plate is improved to increase the amount of cooling water above the intake pipe and enhance the cooling effect.

[0006] The technical solution of the utility model is as follows:

[0007] The water jacket exhaust pipe for a high-speed boat includes an exhaust pipe and an intake pipe, and is characterized in that: the exhaust pipe includes a first straight pipe, a second straight pipe and a connecting elbow connecting the first straight pipe and the second straight pipe. The included angle between the axis of the first straight pipe and the axis of the second straight pipe is 161°. A connecting flange is provided at the end of the first straight pipe. The intake pipe is coaxially arranged in the second straight pipe. A sealing plate and an atomizing end plate are provided between the outer wall of the intake pipe and the inner wall of the second straight pipe. A water inlet pipe is provided on the second straight pipe, and the axis of the water inlet pipe is tangent to the outer wall of the intake pipe.

[0008] Further, the atomizing end plate is inclined, and the included angle between the atomizing end plate and the surface of the intake pipe is 120°.

[0009] Further, the atomizing end plate is provided with atomizing holes, and the axes of the atomizing holes are perpendicular to the atomizing end plate.

[0010] Further, a circle of first atomizing holes is provided on the atomizing end plate.

[0011] Furthermore, a semi-circle of second atomizing holes is also provided on the atomizing end plate of the inner circle of the first atomizing holes, and the semi-circle of second atomizing holes is located above the air inlet pipe.

[0012] Furthermore, a first connecting flange is provided at the end of the air inlet pipe, and a second connecting flange is provided at the end of the exhaust pipe.

[0013] Furthermore, the water inlet pipe includes a first straight water inlet pipe connected to the air inlet pipe, the first straight water inlet pipe is connected with a water inlet elbow, and a second straight water inlet pipe connected to the water inlet elbow. The axis of the water inlet pipe is parallel to the end face of the first straight pipe.

[0014] Furthermore, a socket part is provided at the end of the second straight water inlet pipe. The outer diameter of the socket part is smaller than the outer diameter of the second straight water inlet pipe, and an arc-shaped convex part is provided on the surface of the socket part.

[0015] In summary, the utility model has the following beneficial effects:

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. The utility model designs a water jacket exhaust pipe applicable to a high-speed boat. The exhaust pipe adopts a bent structure design. On the one hand, the airflow has an angle in the exhaust pipe, which can slow down the speed of the airflow. On the other hand, it also shortens the length of the exhaust pipe and changes the position of the connection end of the exhaust pipe to meet the installation requirements inside the high-speed boat. The cooling water enters the partition sleeve through the water inlet pipe, and the water inlet pipe is tangent to the outer wall of the air inlet pipe, reducing the impact of the cooling water entering the partition sleeve and improving the flow rate of the cooling water, so that the cooling water has a good atomization effect when flowing out from the atomizing end plate, and the atomized water flow ejected from the atomizing end plate is used to cool the airflow.

[0018] 2. The utility model improves the arrangement method of the atomizing end plate. By adopting an inclined setting method and combining with the setting method of atomizing holes, it is ensured that the atomized water flow can converge towards the airflow, increasing the contact efficiency between the atomized water flow and the airflow and improving the cooling ability of the atomized water flow to the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a cross-sectional schematic view of the utility model;

[0020] Figure 2 is the Figure 1 cross-sectional schematic view of A-A in the utility model;

[0021] Figure 3 is a front view schematic view of the utility model;

[0022] In the figure, 1 is the exhaust pipe, 10 is the first straight pipe, 11 is the second straight pipe, 12 is the connecting elbow, and 13 is the second connecting flange.

[0023] 2 is the intake pipe, 20 is the sealing plate, 21 is the atomizing end plate, 22 is the water inlet pipe, 210 are atomizing holes, 2101 is the first atomizing hole, 2102 is the second atomizing hole, and 23 is the first connecting flange.

[0024] 220 is the first water inlet straight pipe, 221 is the water inlet elbow, 222 is the second water inlet straight pipe, 2220 is the socket part, and 2221 is the arc-shaped convex part. Specific embodiments

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the specific embodiments cited are not intended to limit the present invention.

[0026] It should be noted that when an element is referred to as being "arranged on" or "fixed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is referred to as being "fixed on" another element or "fixedly connected" to another element, the connection between them can be a detachable fixing method or a non-detachable fixing method. When an element is considered to be "connected" or "rotationally connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of illustration and do not represent the only implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] In the present invention, the terms such as "first", "second", "third", etc. do not represent specific quantities and sequences, but are only used for name distinction.

[0029] See Figure 1As shown in the figure, a water jacket exhaust pipe for a high-speed boat includes an exhaust pipe 1 and an intake pipe 2. The exhaust pipe 1 includes a first straight pipe 10, a second straight pipe 11, and a connecting elbow 12 connecting the first straight pipe 10 and the second straight pipe 11. The included angle between the axis of the first straight pipe 10 and the axis of the second straight pipe 11 is 161°. The exhaust pipe of the present utility model adopts a bent design, which shortens the straight length of the exhaust pipe and is also convenient for the layout of the internal space of the high-speed boat, facilitating installation and connection. A connecting flange 101 is provided at the end of the first straight pipe 10. The intake pipe 2 is coaxially arranged inside the second straight pipe 11. A sealing plate 20 and an atomizing end plate 21 are provided between the outer wall of the intake pipe 2 and the inner wall of the second straight pipe. A spacer is formed among the sealing plate, the atomizing end plate, the intake pipe, and the second straight pipe. A water inlet pipe 22 is provided on the second straight pipe 11, and the axis of the water inlet pipe 22 is tangent to the outer wall of the intake pipe 2.

[0030] The present utility model designs a water jacket exhaust pipe suitable for a high-speed boat. The exhaust pipe adopts a bent structure design. On the one hand, the airflow has an angle inside the exhaust pipe, which can slow down the speed of the airflow. On the other hand, it also shortens the length of the exhaust pipe and changes the position of the connection end of the exhaust pipe to meet the installation requirements inside the high-speed boat. Cooling water enters the spacer through the water inlet pipe, and the water inlet pipe is tangent to the outer wall of the intake pipe, reducing the impact of the cooling water entering the spacer and increasing the flow rate of the cooling water, so that the cooling water has a better atomization effect when flowing out from the atomizing end plate. The atomized water flow ejected through the atomizing end plate is used to cool the airflow.

[0031] The atomizing end plate 21 is inclined, and the included angle between the atomizing end plate and the surface of the intake pipe is 120°. Further, the atomizing end plate of the present utility model is inclined, and the center of the inclined atomizing end plate points to the axis of the intake pipe. Thus, the atomized water flow ejected from the atomizing end plate can fully contact the airflow, improving the cooling effect.

[0032] Atomizing holes 210 are provided on the atomizing end plate 21, and the axis of the atomizing holes is perpendicular to the atomizing end plate. Here, the direction of the atomizing holes is further limited, so that the axis of the atomizing holes also points to the axis of the intake hole.

[0033] See Figure 2 As shown in the figure, a circle of first atomizing holes 2101 is provided on the atomizing end plate 21. Further, the atomizing holes in this embodiment are arranged in a circular shape, and the obtained atomized water flow is also circular, which can better contact the airflow.

[0034] Further see Figure 2As shown, a semi-circle of second atomizing holes 2102 is further provided on the atomizing end plate inside the inner circle of the first atomizing holes. The semi-circle of second atomizing holes is located above the intake pipe. By setting the second atomizing holes, the flow rate of the atomized water flow above the air flow at the outlet of the intake pipe is increased, so that the large-flow atomized water flow can contact a larger area of air flow and better cool the air flow.

[0035] Furthermore, a first connecting flange 23 is provided at the end of the intake pipe 2, and a second connecting flange 13 is provided at the end of the exhaust pipe 1. The first connecting flange and the second connecting flange provided facilitate the connection of the water jacket exhaust pipe to other components.

[0036] See Figure 1 and Figure 3 As shown, the intake pipe 22 includes a first intake straight pipe 220 connected to the intake pipe, the first intake straight pipe is connected with an intake elbow 221, and a second intake straight pipe 222 connected to the intake elbow 221. The axis of the intake pipe is parallel to the end face of the first straight pipe. In this embodiment, the intake pipe also adopts a bent structure design, shortening the length of the intake pipe, facilitating the installation of the water jacket exhaust pipe inside the high-speed boat, and reducing space occupation.

[0037] See Figure 3 As shown, a socket part 2220 is provided at the end of the second intake straight pipe 222. The outer diameter of the socket part is smaller than the outer diameter of the second intake straight pipe, and an arc-shaped convex part 2221 is provided on the surface of the socket part. The arc-shaped convex part is an annular boss arranged along the circumference on the surface of the socket part; the socket part provided facilitates a socket fit with other pipe fittings, and the arc-shaped convex part plays a limiting role. When the clamping component clamps on the socket part, the arc-shaped convex part can limit the clamping component from slipping off the socket part and ensure the reliability of the connection.

[0038] In summary, the utility model has the following beneficial effects:

[0039] 1. The utility model designs a water jacket exhaust pipe applicable to a high-speed boat. The exhaust pipe adopts a bent structure design. On the one hand, the air flow has an angle inside the exhaust pipe, which can slow down the speed of the air flow. On the other hand, it also shortens the length of the exhaust pipe and changes the position of the connection end of the exhaust pipe to meet the installation requirements inside the high-speed boat. The cooling water enters the partition sleeve through the intake pipe, and the intake pipe is tangent to the outer wall of the intake pipe, reducing the impact of the cooling water entering the partition sleeve and increasing the flow rate of the cooling water, so that the cooling water has a better atomization effect when flowing out from the atomizing end plate, and the atomized water flow ejected from the atomizing end plate is used to cool the air flow.

[0040] 2. The present utility model improves the arrangement mode of the atomization end plate. By adopting an inclined setting mode and combining it with the setting mode of atomization holes, it is ensured that the atomized water flow can converge towards the air flow, increasing the contact efficiency between the atomized water flow and the air flow and enhancing the cooling capacity of the atomized water flow to the air flow.

[0041] Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. Water jacket exhaust pipe for high-speed boat, which comprises an exhaust pipe and an intake pipe, characterized in that: The exhaust pipe described above includes a first straight pipe, a second straight pipe, and a connecting elbow connecting the first straight pipe and the second straight pipe. The included angle between the axis of the first straight pipe and the axis of the second straight pipe is 161°. A connecting flange is provided at the end of the first straight pipe. The intake pipe is coaxially arranged inside the second straight pipe. A sealing plate and an atomizing end plate are provided between the outer wall of the intake pipe and the inner wall of the second straight pipe. A water inlet pipe is provided on the second straight pipe, and the axis of the water inlet pipe is tangent to the outer wall of the intake pipe.

2. The water jacket exhaust pipe for a high-speed boat according to claim 1, wherein: The atomizing end plate is inclined, and the included angle between the atomizing end plate and the surface of the intake pipe is 120°.

3. The water jacket exhaust pipe for a high-speed boat according to claim 2, characterized in that: Atomizing holes are provided on the atomizing end plate, and the axes of the atomizing holes are perpendicular to the atomizing end plate.

4. The water jacket exhaust pipe for high-speed boats according to claim 3, characterized in that: A circle of first atomizing holes is provided on the atomizing end plate.

5. The water jacket exhaust pipe for a high-speed boat according to claim 4, characterized in that: Half a circle of second atomizing holes is further provided on the atomizing end plate inside the inner circle of the first atomizing holes, and the half circle of second atomizing holes is located above the intake pipe.

6. The water jacket exhaust pipe for a high-speed boat according to claim 1, characterized in that: A first connecting flange is provided at the end of the intake pipe, and a second connecting flange is provided at the end of the exhaust pipe.

7. The water jacket exhaust pipe for a high-speed boat according to claim 1, characterized in that: The water inlet pipe includes a first water inlet straight pipe connected to the intake pipe. The first water inlet straight pipe is connected with a water inlet elbow, and a second water inlet straight pipe connected to the water inlet elbow. The axis of the water inlet pipe is parallel to the end face of the first straight pipe.

8. The water jacket exhaust pipe for a high-speed boat according to claim 7, characterized in that: A socket part is provided at the end of the second water inlet straight pipe. The outer diameter of the socket part is smaller than the outer diameter of the second water inlet straight pipe, and an arc-shaped convex part is provided on the surface of the socket part.

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