Ship bow sliding plate structure capable of increasing navigational speed and enhancing seawater cooling capacity

Abstract

The invention provides a ship bow sliding plate structure capable of increasing the navigational speed and enhancing the seawater cooling capacity. The ship bow sliding plate structure comprises a bow sliding plate. The head sliding plate is mounted at the head of the ship body; an impeller assembly is mounted on the head sliding plate through a through hole groove; the impeller assembly comprises an impeller, an impeller shaft and an impeller cover; the impeller is arranged in the through hole groove and connected with the head sliding plate through an impeller shaft. The impeller is connected with the impeller shaft through a positioning pin, and the impeller cover is arranged on the head sliding plate and corresponds to the through hole groove in position. The device has the beneficial effects that the vacuum degree of the water suction port in the bottom of the ship can be reduced, the water suction amount of the sea water pump can be guaranteed, the cooling capacity of the ship can be improved, the environment temperature of an engine can be reduced, and the sailing speed of the ship in a high-speed environment is not reduced.

Description

Technical Field

[0001] The invention belongs to the field of ships, and in particular relates to a bow slide structure of a ship which can improve the speed and enhance the seawater cooling capacity. Background Art

[0002] In the field of ship technology, ships can be mostly divided into high-speed, medium-speed and low-speed ships according to their different sailing speeds. Usually in terms of medium- and low-speed ships, due to their low sailing speeds, the resistance of the seawater to the ship is small, and the cooling capacity of the seawater on the ship (mainly the power) is almost negligible. However, in terms of high-speed ships, especially special-purpose ships, due to their high sailing speeds and high power requirements, the resistance of seawater to the ship will be very large, and the ship can only overcome the influence of seawater resistance on its sailing speed by increasing power. However, increasing the power of the ship can only be achieved by burning more fuel. The heat released by the combustion of fuel and the heat generated by the friction of the friction pairs between the moving parts will be greater. For this reason, more seawater is needed to cool the temperature of various parts of the ship to ensure the temperature environment required for the normal operation of the ship.

[0003] For high-speed ships, the speed can be increased by increasing power, increasing displacement, adjusting the inclination angle of the bow slide, etc. However, in actual work, as the speed of the ship increases, a vacuum negative pressure area is often formed near the seawater intake port arranged at the bottom of the ship. The formation of the vacuum negative pressure area causes the water absorption capacity of the seawater pump to continue to weaken, and even the cooling water flow is cut off, which seriously reduces the cooling capacity of various parts of the ship. The increase in the ambient temperature of various parts of the ship brings serious safety hazards to the normal navigation of the ship, and also restricts the high-speed navigation needs of the ship. Invention content

[0004] In view of this, the invention aims to propose a ship bow slide structure that can increase the ship speed and enhance the seawater cooling capacity, so as to solve at least one technical problem in the background technology.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] A bow plate structure for a ship capable of increasing the speed and enhancing the cooling capacity of seawater comprises a bow plate; the bow plate is installed at the bow of the ship body;

[0007] An impeller assembly is installed on the first slide plate through a through hole groove;

[0008] The impeller assembly includes an impeller, an impeller shaft, and an impeller cover; the impeller is arranged in a through hole groove, and the impeller is connected to the first slide plate through the impeller shaft; the impeller and the impeller shaft are connected by a positioning pin, and the impeller cover is arranged on the first slide plate, and its position corresponds to the through hole groove.

[0009] The impeller is used to slow down the flow velocity of the seawater flowing along the first slide plate in the oblique downward direction, and to change the flow direction of the seawater flowing horizontally through the first slide plate from the horizontal flow direction to the oblique downward flow direction. The impeller is arranged at the through-hole slot of the first slide plate and is connected to the first slide plate through the impeller shaft.

[0010] The locating pin is used to fix the relative position of the impeller and the impeller shaft. The locating pin is installed between the impeller and the impeller shaft.

[0011] Further, the impeller shaft is arranged on the first slide plate through the impeller shaft mounting seat; the shaft mounting seat is connected to the first slide plate through mounting screws. The impeller shaft is used to install or fix the impeller, and the impeller shaft can be made into a whole or split to ensure its rigidity. The impeller shaft is fixed to the first slide plate through the impeller shaft mounting seat with mounting screws.

[0012] Further, the impeller shaft is integral or split. The impeller shaft is used to install or fix the impeller, and the impeller shaft can be made integral or split to ensure its rigidity. The impeller shaft is fixed to the first slide plate through the impeller shaft mounting seat with mounting screws.

[0013] Furthermore, the impeller cover is arranged on the first slide plate by means of mounting bolts, and the position thereof corresponds to the through hole groove. The impeller cover is used to cover the impeller to shield the function of the impeller, and the number of the impeller covers can be adjusted.

[0014] Furthermore, the through hole groove is arranged in the lower middle part of the first slide plate.

[0015] Compared with the prior art, the bow slide structure of a ship that can increase the speed and enhance the seawater cooling capacity created by the present invention has the following advantages:

[0016] (1) The ship bow plate structure technology capable of increasing the ship speed and enhancing the seawater cooling capacity described in the present invention is an upgrade and modification based on the original bow plate structure and technology, and does not involve changes and modifications to all other structures and components of the ship.

[0017] (2) The bow slide structure technology of the ship that can increase the speed and enhance the seawater cooling capacity described in the present invention can reduce the vacuum degree of the water suction port at the bottom of the ship, ensure the water absorption capacity of the seawater pump, improve the cooling capacity of the ship, and reduce the ambient temperature of the engine without reducing the navigation speed of the ship in a high-speed environment.

[0018] (3) The bow plate structure technology of the ship that can increase the speed and enhance the seawater cooling capacity described in the present invention utilizes the principle of energy conservation and conversion to convert the energy lost by the bow plate compressing the seawater at high speed into potential energy for raising the bow of the ship, thereby reducing the height of the ship's stern thrust, enhancing the propeller effect, increasing the kinetic energy of the ship, and accelerating the ship's sailing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings: BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a technical layout and functional diagram of the bow slide structure of a ship that can increase the speed and enhance the seawater cooling capacity according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the bow skateboard structure of a ship that can increase the speed and enhance the seawater cooling capacity according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of an impeller assembly of a bow slide of a ship capable of increasing the speed and enhancing the seawater cooling capacity according to an embodiment of the present invention;

[0024] Figure 4 This is a working principle diagram of the bow slide structure of a ship capable of increasing the speed and enhancing the seawater cooling capacity according to an embodiment of the present invention;

[0025] Figure 5 It is a fluid mechanics schematic diagram of the bow plate structure of a ship that can increase the speed and enhance the seawater cooling capacity according to an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Bow slide; 2. Hydraulic prop; 3. Ship hull; 4. Engine; 5. Water intake; 6. Seawater pump; 7. Stern thruster; 8. Through-hole groove; 9. Impeller; 10. Impeller shaft; 11. Locating pin; 12. Mounting screw; 13. Impeller shaft mounting seat; 14. Impeller cover; 15-Water flow direction (A); 16-Water flow direction (B); 17-Vacuum zone; 21. Ship hull; 24-Seawater (A); 25-Seawater (B); 26-Seawater (C); 30. Ship hull head. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] Example 1

[0031] A ship bow slide technology that can increase the speed and enhance the seawater cooling capacity, such as Figure 1 and Figure 2As shown, it includes a bow slide 1; a hydraulic prop 2; a ship body 3; an engine 4; a water intake 5; a seawater pump 6; a stern thruster 7; a through-hole groove 8; an impeller 9; an impeller shaft 10; a positioning pin 11; a mounting screw 12; an impeller shaft mounting seat 13; and an impeller cover 14.

[0032] Example 2

[0033] A ship bow slide technology that can increase the speed and enhance the seawater cooling capacity, such as Figure 3 As shown, it includes an engine 4; a water intake 5; a seawater pump 6; a water flow direction (A) 15; a water flow direction (B) 16; and a vacuum zone 17.

[0034] Example 3

[0035] A ship bow slide technology that can increase the speed and enhance the seawater cooling capacity, such as Figure 4 As shown, it includes a ship body 3; a bow slide 1; an engine 4; a seawater pump 6; a stern thruster 7; an impeller 9; seawater (A) 24; seawater (B) 25; seawater (C) 26; a vacuum zone 17; and a head 30 of the ship body.

[0036] The layout and function of the first slide plate are as follows: Figure 1 As shown, the bow slide 1 is arranged at the bow of the ship body and is connected to the ship body 3 by two hydraulic struts 2. The bottom of the bow slide 1 extends downward. The bow slide 1 is rotatably connected to the bow body 30, or not connected. The angle of the bow slide 1 can be adjusted by the two hydraulic struts 2.

[0037] The engine 4 is arranged in the ship body 3, the water intake 5 is arranged at the bottom of the ship body 3, and the seawater pump 6 sucks seawater from the water intake 5 for cooling the engine 4. Two hydraulic props 2 are symmetrically arranged between the first plate body and the ship body.

[0038] The bow slide 1 utilizes the principle of energy conservation and conversion, and converts the energy lost by the bow slide compressing the seawater at high speed into potential energy for lifting the head of the ship body 3. After the head of the ship body 3 rises, the two tail thrusters 7 at its tail float downward. The downward floating of the tail thrusters 7 further strengthens the propeller effect, and the greater thrust drives the ship to travel at a higher speed.

[0039] The structure of the first skateboard, such as Figure 2 As shown, a through hole groove 8 of a certain length and width is opened near the bottom of the first slide plate 1, and the through hole groove 8 is used to arrange the impeller 9. The impeller 9 is connected to the first slide plate 1 through the impeller shaft 10. The impeller 9 and the impeller shaft 10 are fastened and interconnected by a positioning pin 11. The impeller shaft 10 is installed at the through hole groove 8 and interconnected with the first slide plate 1 through the mounting screws 12 and the impeller shaft mounting seat 13, and the impeller cover 14 is interconnected with the first slide plate 1 through the mounting screws 12.

[0040] The impeller shaft can be integral or split, but must meet the rigidity requirements. The number of impellers can be adjusted.

[0041] The number of impeller guards can be adjusted.

[0042] The working principle of the first slide plate is as follows: Figure 3 As shown, when the ship is traveling forward at high speed, after the seawater encounters the bow slide, the water flow direction (A) 15 changes from the horizontal direction to the water flow direction (B) 16 along the inclined surface of the bow slide. The high-speed water flow in the water flow direction 16 (B) generates a siphon effect due to compression, and the siphon effect causes a vacuum area 17 (or a near-vacuum area) to form at the bottom of the ship body. As the speed of the ship increases.

[0043] The fluid mechanics of the first slide, such as Figure 4 As shown, when the ship 21 travels forward at high speed, the seawater (A) 24 compressed by the bow slide 1 drives the impeller 9 to rotate. If the friction loss of the impeller 9 is not considered, the sum of the pressures of the seawater (B) 25 and the seawater (C) 26 is equal to the pressure of the seawater (A) 24. Compared with the compression degree of the seawater (A) 24, the density of the seawater (B) 2 sucked by the seawater pump 6 from the water intake port 5 will become smaller and smaller, and even a negative density phenomenon will occur. When this siphon effect becomes more and more serious, the water flow rate of the cooling engine 4 sucked by the seawater pump 6 will become smaller and smaller, and even the cooling water will be cut off. When the working environment temperature of the engine 4 exceeds the normal range (temperature rises), the engine 4 can only maintain its working environment temperature by reducing the injection amount and reducing power. The decrease in the power of the engine 4 will eventually reduce the navigation speed of the ship, and the compression degree of 5 will be significantly alleviated.

[0044] Compared with seawater (A) 24, lower pressure seawater (B) 25 alleviates the negative density phenomenon of the vacuum area 17 at the bottom of the ship body 3, and the water flow rate sucked by the seawater pump 6 for cooling the engine 4 will become larger, and sufficient cooling effect ensures the normal operation of the engine 4.

[0045] The reverse force of the seawater (C) 26 flowing obliquely downward lifts the bow 30 of the ship body. The lifting of the bow 30 of the ship body causes the tail thruster 7 to tilt downward, and the displacement of the tail thruster 7 is further increased. The stronger propeller effect ensures that the ship moves forward at a faster speed.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The bow slide structure of the ship can increase the speed and enhance the cooling capacity of seawater. Features: It includes a bow slide plate; the bow slide plate is installed at the head of the ship body; An impeller assembly is installed on the first slide plate through a through hole groove; The impeller assembly includes an impeller, an impeller shaft, and an impeller cover; the impeller is arranged in a through hole groove, and the impeller is connected to the first slide plate through the impeller shaft; the impeller and the impeller shaft are connected by a positioning pin, and the impeller cover is arranged on the first slide plate, and its position corresponds to the through hole groove.

2. The bow slide structure of a ship capable of increasing the speed and enhancing the seawater cooling capacity according to claim 1, Features: The impeller shaft is arranged on the first slide plate through an impeller shaft mounting seat; The wheel axle mounting seat is connected with the first slide plate through mounting screws.

3. The ship bow slide structure capable of increasing the speed and enhancing the seawater cooling capacity according to claim 1, Features: The impeller shaft is integral or split.

4. The bow slide structure of a ship capable of increasing the speed and enhancing the seawater cooling capacity according to claim 1, Features: The impeller cover is arranged on the first slide plate by means of mounting bolts, and its position corresponds to the through hole groove.

5. The bow plate structure of a ship capable of increasing the speed and enhancing the seawater cooling capacity according to claim 1, Features: The through hole groove is arranged at the middle and lower part of the first slide plate.

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