CN2306949Y

CN2306949Y - Resistance-reducing speed-increasing energy-saving device for motor-driven ship

Info

Publication number: CN2306949Y
Application number: CN97236885U
Authority: CN
Inventors: 尹恒银
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-20
Filing date: 1997-08-20
Publication date: 1999-02-10
Anticipated expiration: 2007-08-20

Abstract

The utility model discloses a resistance-reducing speed-increasing energy-saving device for a motor ship, which is characterized in that both side edges of the bottom of a ship body (1) are provided with water inlet pipes (8) which lead to a bow and a stern; impellers (3) are arranged in the water inlet pipe opening (12) of the bottom of the bow for being driven by a power speed-changing device (6) to operate and absorb the water; the ship body is operated by the drainage from the bottom of the stern. Because the bow is a place where the wave-making resistance is relatively centralized, when two impellers (3) which are arranged on the bottom of the bow operate, because the impellers (3) are below the horizontal plane, water flows or spray is continuously absorbed in the water inlet pipe opening (12) to make the water level of the bow be below the horizontal plane, and thus, the wave-making resistance at the bow is reduced for causing the utility model to increase the speed and save the energy.

Description

The velocity increased by resistance reduction energy saver of power driven vessel

The utility model relates to a kind ofly to be made power driven vessel reduce resistance to gather way and energy-conservation device, especially a kind of propeller is placed the anterior draining of the hull bottom device of afterbody alow.

Existing power driven vessel utilization mechanical power drives propeller and promotes the boats and ships operation, mechanical power is installed in the afterbody of ship, the ship of this structure, when ship when navigating by water forward, rise frequently at bow and to have the billow that The water splash in all directions, these " waves " are engulfing the energy that marine main engine sends constantly just, and it is stopping that boats and ships march forward.The water wave is a resistance, and the shipbuilding scholar is referred to as wave making resistance, and ship will advance and will expend part energy on wave making resistance.In the research of shipbuilding science, find, in mainly containing two big resistances one during ship navigates by water on the water and be hull and water contacting because relative motion produces friction force; The 2nd, wave making resistance.When marine low speed is navigated by water, that is to say that general ship's navigation just accounts for half of total drag at the speed state wave making resistance surplus in the of 10 nautical mile per hour.When speed improves, the ratio of wave making resistance will sharply increase, the brainstrust of naval architecture was once done a test, when the speed of a ship or plane of trial ship from per hour 10 nautical miles when per hour being increased to 20 nautical miles, the power of main frame need increase by 30%, and when the speed of a ship or plane from per hour 20 nautical miles when being increased to 30 nautical miles, main engine power just needs to increase by 50%, if from per hour 30 nautical miles when being increased to 40 nautical miles, main engine power just must increase by 100% the speed of a ship or plane, the wave making resistance of this moment will be about 3/4 of total drag.

It is to alleviate the wave making resistance that is produced when boats and ships advance that the purpose of this utility model is to provide a kind of, thereby improves the device of shipping sail speed energy savings.

For achieving the above object, the utility model is to realize like this, on hull, is furnished with propelling unit, its propelling unit is by the power speed changing device that is installed on the hull, impeller is rotated, and by rudder grasp ship's head, be characterized in: be furnished with two coolants inlet pipe at the dual-side of hull bottom, the water inlet pipe mouth of coolant inlet pipe is located at the bow bottom, its effluent pipe mouth is located at the stern bottom, water inlet pipe mouth, the effluent pipe mouth bore is greater than the internal diameter of coolant inlet pipe, all is toroidal between they and the admitting pipe joint, is furnished with impeller in the exit skirt of coolant inlet pipe, impeller fits over the driven shaft axle head of right-angular drive gearbox, the imput shaft of right-angular drive gearbox is passed the tubaeform wall of water inlet pipe mouth and the hole that the outer tube tube wall is provided with sealing water device, is assigned on the engine installation that is installed on the hull, establishes rudder respectively at two effluent pipe mouth places.On the excircle of coolant inlet pipe, be provided with the outer tube that its two ends are connected with water inlet pipe mouth, effluent pipe mouth respectively, on the excircle of coolant inlet pipe, form air chamber.Be connected with several crossbeams above the outer tube at two, hull is assigned in above the crossbeam.

The utility model has the advantages that: 1, owing to the impeller in the propelling unit is arranged in the water inlet pipe mouth of bow bottom, through impeller operation with water inspiration coolant inlet pipe, discharge from the stern bottom, the effluent pipe mouth that adds afterbody is designed to toroidal, make the water of impeller inspiration form compression thrust, flow action is further increased in the thrust of hull to afterbody to the middle part pipeline; Bow is the place that wave making resistance is concentrated, when two impeller operations in two water inlet pipe mouths that are arranged on the bow bottom, because impeller is lower than horizontal surface, water inlet pipe mouth is the current or the spray of inspiration bow ceaselessly, make the water level of bow be lower than horizontal surface, therefore, cut down the wave making resistance of bow widely; 3, owing to be provided with blade on water inlet pipe mouth, the cutting edge of blade and impeller vane one side coincide, and are combined into weeds from cutting apparatus, can overcome coolant inlet pipe effectively and taken place by the weeds stopping state; 4, form air chamber owing to establish outer tube on the coolant inlet pipe excircle, produce the hull above certain buoyant support, hull can be increased cut weight and safety performance.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing

Fig. 1 is the cross section view of first kind of embodiment of the utility model;

Fig. 2 is that the A-A of Fig. 1 is to view;

Fig. 3 is second kind of embodiment cross section view of the utility model;

Fig. 4 is that the B of Fig. 1, Fig. 3 is to view;

Fig. 5 be among Fig. 3 D-D to view.

Fig. 1, Fig. 2, Fig. 4 are first kind of example structure figure of the utility model.As shown in the figure, dual-side in outside, hull 1 bottom is furnished with two coolants inlet pipe 8, the water inlet pipe mouth 12 of coolant inlet pipe 8 is located at the bow bottom, its effluent pipe mouth 5 is positioned at the stern bottom, water inlet pipe mouth 12, effluent pipe mouth 5 bores are greater than the internal diameter of coolant inlet pipe 8, all be toroidal between they and coolant inlet pipe 8 joints, in water inlet pipe mouth 12, is furnished with impeller 3, on water inlet pipe mouth 12, be provided with and be " ten " font blade 2, the cutting edge of blade 2 is fit to blade one side of impeller 3, forms weeds from cutting apparatus, can make when impeller 3 rotates, the weeds of inspiration are shredded discharge, prevent that effectively coolant inlet pipe 8 from stopping up.5 places are furnished with rudder 11 at effluent pipe mouth, and rudder 11 is assigned in the flare effluent pipe mouth 5 and partly is the circular arc head, and remainder is that oblong is assigned in outside the effluent pipe mouth 5, and structure and prior art that rudder 11 is assigned on the hull 1 are general, do not describe in detail at this.Impeller 3 back in water inlet pipe mouth 12 are furnished with right-angular drive gearbox 4, impeller 3 fits over the driven shaft axle head of right-angular drive gearbox 4, the imput shaft of right-angle gear box 4 is passed the exit skirt wall of water inlet pipe mouth 12 and the sealing water device hole that outer tube 7 tube walls are provided with, be assigned in respectively on the power speed changing device 6 that is installed on the hull 1, power speed changing device 6 is made up of engine and speed-change gear box, general with prior art, than polygamy in the gear case of prior art a pair of run-in synchronism gear is arranged, its shaft extension goes out outside the gear case, transmits power in the right-angle gear box 4.Be furnished with a pair of crowngear in the right-angular drive gearbox 4, gear case transmitted the vertical direction rotation become the horizontal direction rotation, for avoiding the immersion of water, right-angular drive gearbox 4 has tight sealing water device between gear wheel shaft and casing.Be provided with on the excircle of coolant inlet pipe 8 that its two ends are connected with water inlet pipe mouth 12, effluent pipe mouth 5 respectively and the outer tube 7 of equal diameters, on the excircle of coolant inlet pipe 8, form air chamber 10, produce the hull 1 above certain buoyant support, make hull 1 can increase load carrying ability and safety performance.Be welded with several crossbeams 9 on two outer tubes 7, the quantity of crossbeam 9 is decided according to the practical structures of ship, hull 1 fit over crossbeam 9 above.

Fig. 3, Fig. 4, Fig. 5 are second kind of example structure figure of the present utility model, and as shown in the figure, the difference of comparing with first kind of embodiment is: its coolant inlet pipe 8 directly places the inside, hull 1 bottom, is not furnished with outer tube 7 on coolant inlet pipe 8 excircles and forms air chamber 10.Other parts similar, this structure are applicable to common transportation ship.

Claims

1, a kind of velocity increased by resistance reduction energy saver of power driven vessel, on hull (1), is furnished with propelling unit, its propelling unit is by the power speed changing device (6) that is installed on the hull (1), impeller (3) is rotated, and by rudder (11) grasp ship's head, it is characterized in that: the dual-side in hull (1) bottom is furnished with coolant inlet pipe (8), the water inlet pipe mouth (12) of coolant inlet pipe (8) is located at the bow bottom, its effluent pipe mouth (5) is positioned at the stern bottom, water inlet pipe mouth (12), the bore of effluent pipe mouth (5) is greater than the internal diameter of coolant inlet pipe (8), all be toroidal between they and coolant inlet pipe (8) joint, in the exit skirt of water inlet pipe mouth (12), is furnished with impeller (3), impeller (3) fits over the driven shaft axle head of right-angular drive gearbox (4), the imput shaft of right-angular drive gearbox (4) is passed the hole of the sealing water device that tubaeform wall in the water inlet pipe mouth (12) and outer tube (7) tube wall be provided with, be assigned on the engine installation (6) that is installed on the hull (1), locate to be provided with respectively rudder (11) at two effluent pipe mouths (5); On the excircle of coolant inlet pipe (8), be provided with the outer tube (7) that its two ends are connected with water inlet pipe mouth (12), effluent pipe mouth (5) respectively, on the excircle of coolant inlet pipe (8), form air chamber (10); Be connected with several crossbeams (9) on two outer tubes (7), hull (1) is assigned in above the crossbeam (9).

2, the velocity increased by resistance reduction energy saver of a kind of power driven vessel according to claim 1, it is characterized in that: on water inlet pipe mouth (12), be provided with blade (2), the cutting edge of blade (2) is fit to blade one side of impeller (3), makes the weeds of inspiration when impeller (3) rotates be shredded the back discharge.