CN103523162B

CN103523162B - With the ship of the low water drag in reducing speedup cabin

Info

Publication number: CN103523162B
Application number: CN201310512071.5A
Authority: CN
Inventors: 申国栋
Original assignee: Individual
Current assignee: Shandong Future City Construction Engineering Co ltd
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2016-05-18
Anticipated expiration: 2031-04-29
Also published as: CN103523161A; CN103523159A; CN102267539A; CN102267539B; CN103523158B; CN103523161B; CN103523159B; CN103523163B; CN103523162A; CN103523163A; CN103523158A

Abstract

The invention discloses a kind of ship of the low water drag with reducing speedup cabin, comprise hull and be positioned at the speedup cabin of hull bottom below, hull bottom is followed successively by from front to back one by one end to end horizontal choke section, contraction section, enters water section, the section of arching upward and water exit end; The open rearward end in speedup cabin is delivery port, and delivery port is positioned at the afterbody of hull; The front opening in speedup cabin is water inlet, and the upper end of the water inlet of speedup bulkhead is positioned at horizontal choke section middle part; Horizontal choke section, the hull bottom face that enters water section and water exit end are parallel to each other; The section of arching upward upwards arches upward, two impellers that are provided with in same level position in the section of arching upward and are arranged side by side; Two impellers are connected with electric-motor drive respectively. Speedup cabin attenuates from front to back successively, impeller is supplied water more abundant, and water flow velocity is faster, and front-suction and back-push effect is more obvious. And owing to being provided with the section of arching that impeller is installed, impeller work area is much larger than the sectional area of water exit end below cavity. Therefore, gear of the present invention has higher travel speed.

Description

With the ship of the low water drag in reducing speedup cabin

The application is divisional application, and the patent No. of original bill is: 201110118724.2, and the applying date: on April 29th, 2011, denomination of invention is: a kind of ship of low water drag.

Technical field

The present invention relates to a kind of ship of low water drag, described ship comprises large, medium and small type steamer, submarine, naval vessels and aircraft carrier.

Background technology

Present ship's speed degree is all very slow, is adopting high-power slow-speed of revolution theory always. The problem of thereupon bringing is, improves merely revolution speed of propeller, and ship's speed can not improve. Cause the reason of this phenomenon to have two, the one, the resistance of water is larger, and the darker resistance of drinking water is larger; The 2nd, air inlet, because ship is to travel between water and air, the natural flow velocity of water has certain limit in certain degree of depth, and in the time that the rotating speed of screw exceedes certain limit, screw supplies with regard to anhydrous, appearance is cut off the water supply, at this moment air just supplements, and is so-called air inlet, and the water of air inlet is white, white be bubble, and it is colourless not having alveolate water. The higher air inlet of rotating speed is more, and the ratio that in aqueous vapor, water accounts for is just lower, and the thrust of generation is just less, then just occur that revolution speed of propeller is very high, but ship's speed does not have the phenomenon further improving. As long as seal entering of air, this phenomenon will disappear.

Publication number is that the Chinese invention patent of " CN101012005 " discloses " a kind of ship with accelerator ". It is by hull bottom, velocity hooster being installed, and utilizes impeller to strengthen to participate in flow and the flow velocity of the water that promotion hull advances, and has realized the raising of ship's speed. In order to reduce contact area and the resistance of ship and water, its hull bottom shape is stuck up before benchmark taking horizontal plane, in foot, front end hull bottom face leaves the water surface, ship is in the time advancing at utmost speed, air-flow side space from this front end hull bottom face is drawn in velocity hooster with water, is easy to occur above-mentioned air inlet problem, affects the further raising of ship's speed. On the other hand, the water outlet caliber size of the water inlet aperture of its velocity hooster front end and rear end is approximate, and in the time of described impeller high speed draining, output is limited, finally has influence on drainage speed, and speedup effect is not ideal enough.

Summary of the invention

The present invention aims to provide a kind of ship of the low water drag with reducing speedup cabin, to overcome the above-mentioned undesirable defect of ship speedup effect with accelerator, technical problem to be solved is, first, guarantee not stay all the time airflow space to avoid air inlet in the certain distance of speedup pipeline water inlet front; The second, increase considerably impeller front inflow further to improve the power of front-suction and back-push.

It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:

With the ship of the low water drag in reducing speedup cabin, comprise the hull with motor, also comprise by hull bottom and be positioned at the speedup cabin that the speedup bulkhead of hull bottom below surrounds, it is characterized in that: described hull bottom is followed successively by from front to back one by one end to end horizontal choke section, contraction section, enters water section, the section of arching upward and water exit end; The front end of horizontal choke section is positioned at fore position; The open rearward end in speedup cabin is delivery port, and this delivery port is positioned at the afterbody of hull; The front opening in speedup cabin is water inlet, and the upper end of the water inlet of speedup bulkhead is positioned at horizontal choke section middle part; Described horizontal choke section, contraction section, the hull bottom face that enters water section and water exit end are plane; Wherein horizontal choke section, enter water section and water exit end hull bottom face parallel to each other; The described section of arching upward upwards arches upward, two impellers that are provided with in same level position in the section of arching upward and are arranged side by side; These two impellers are connected with electric-motor drive respectively, Motor Drive vane rotary.

Taking the bilge as benchmark, the height of horizontal choke section is h1, and the height that enters water section is h2, and the height of the section of arching upward is h3, and the height of water exit end is h4, h1 > h3 > h2 > h4.

Its optimal proportion is: h1:h3:h2:h4=8:4:3:2.

Angle between described horizontal choke section hull bottom face and contraction section hull bottom face is obtuse angle alpha, α=135 °.

The water inlet end face in speedup cabin is parallel with contraction section hull bottom face; On the limit, the left and right sides of described contraction section hull bottom face, be installed with respectively rear rail, described rear rail is consistent with its side trend; Be separately installed with the fromer rail paralleling with its dead astern guide rail in the front end left and right sides of horizontal choke section; Also comprise rectangle envelope gas floating plate, four sides of described envelope gas floating plate are fixedly connected with respectively flexible gas block panel, the top margin of described flexible gas block panel is fixedly mounted on the hull bottom face of horizontal choke section, and the dual-side of described flexible gas block panel is separately fixed on the slide block in described guide rail.

On the hull bottom of horizontal choke section, telescopic oil cylinder is installed, the lower end of this telescopic oil cylinder is connected with envelope gas floating plate.

Good effect of the present invention is:

Speedup cabin attenuates from front to back successively, impeller is supplied water more abundant, and water flow velocity is faster, and front-suction and back-push effect is more obvious. And owing to being provided with the section of arching that impeller is installed, impeller work area is much larger than the sectional area of water exit end below cavity. Therefore, gear of the present invention has higher travel speed.

In addition, be provided with the alterable height being surrounded by the hull bottom face of four flexible gas block panels, envelope gas floating plate and horizontal choke section

Seal, sealing body changes with the water line of ship and automatic lifting has been guaranteed in the certain distance of water inlet front, speedup cabin not stay all the time airflow space, has effectively avoided air inlet phenomenon.

Brief description of the drawings

Fig. 1 is structural representation of the present invention.

Detailed description of the invention

Further illustrate the present invention below in conjunction with drawings and Examples.

As shown in Figure 1, the present embodiment comprises the hull 1 with motor 11, also comprises by hull bottom and is positioned at the speedup cabin that the speedup bulkhead 10 below hull bottom surrounds. Only rear and front end opening of described speedup cabin. The bilge in speedup cabin is in same level height.

Described hull bottom is followed successively by from front to back one by one end to end horizontal choke section 3, contraction section 5, enters water section 6, the section of arching upward 7 and water exit end 8, and described each section has identical width, and this width is not less than hull bottom width. Horizontal choke section 3, contraction section 5, the hull bottom face that enters water section 6 and water exit end 8 are plane. The front end of horizontal choke section 3 is positioned at fore position. Wherein horizontal choke section 3, enter water section 6 and water exit end 8 hull bottom face parallel to each other. Taking the bilge as benchmark, the height of horizontal choke section 3 is h1, and the height that enters water section 6 is h2, and the height of the section of arching upward 7 is h3, and the height of water exit end 8 is h4, h1 > h3 > h2 > h4. Preferably h1:h3:h2:h4=8:4:3:2.

The open rearward end in speedup cabin is delivery port 9, and this delivery port 9 is positioned at the afterbody of hull 1. The front opening in speedup cabin is water inlet 13, and the upper end of the water inlet 13 of speedup bulkhead is positioned at horizontal choke section 3 middle parts. Angle between described horizontal choke section hull bottom face and contraction section hull bottom face is obtuse angle alpha, α=135 °. The water inlet end face in speedup cabin is parallel with contraction section hull bottom face.

The described section of arching upward 7 upwards arches upward, two impellers 12 that are provided with in same level position in the section of arching upward 7 and are arranged side by side. These two impellers 12 are in transmission connection with motor 11 respectively, and motor 11 drives impeller 12 are rotated.

Ship in the process of moving, water enters from the larger water inlet 13 of opening, through the cavity of contraction section 5 belows, enter again the cavity into water section 6 belows, because water cavity becomes short successively, above process water flow velocity strengthens gradually, and the water of discharging backward through impeller 12 enters into shorter cavity, and the flow velocity of water increases again. On the limit, the left and right sides of described contraction section hull bottom face, be installed with respectively a rear rail 4, described rear rail 4 is consistent with its side trend. Be separately installed with the fromer rail 15 paralleling with its dead astern guide rail in the front end left and right sides of horizontal choke section 3.

Also comprise rectangle envelope gas floating plate 14, four sides of described envelope gas floating plate 14 are fixedly connected with respectively a flexible gas block panel 16, the top margin of this flexibility gas block panel 16 is fixedly mounted on the hull bottom face of horizontal choke section 3, and the dual-side of this flexibility gas block panel 16 is separately fixed on the slide block in described guide rail. The hull bottom face of four flexible gas block panels 16, envelope gas floating plate 14 and horizontal choke sections 3 surrounds the seal cavity of alterable height.

When ship load, water line, in the time of higher position, relies on the buoyancy of water to envelope gas floating plate 14, and flexible gas block panel 16 upwards shrinks, and envelope gas floating plate 14 leans against hull bottom face. When ship zero load, when water line is lower, envelope gas floating plate 14 relies on deadweight to fall and is attached at the water surface, and flexible gas block panel 16 stretches downwards thereupon, and plays the effect that stops air inlet.

One telescopic oil cylinder 2 can also be installed on the hull bottom of horizontal choke section 3, and the lower end of this telescopic oil cylinder 2 is connected with envelope gas floating plate 14. According to the height of the drinking water situation active adjustment envelope gas floating plate 14 of ship.

Claims

1. with the ship of the low water drag in reducing speedup cabin, comprise the hull (1) with motor (11), also comprise by hull bottom and be positioned at the speedup cabin that the speedup bulkhead (10) of hull bottom below surrounds, it is characterized in that: described hull bottom is followed successively by from front to back one by one end to end horizontal choke section (3), contraction section (5), enters water section (6), the section of arching upward (7) and water exit end (8); The front end of horizontal choke section (3) is positioned at fore position; The open rearward end in speedup cabin is delivery port (9), and this delivery port (9) is positioned at the afterbody of hull (1); The front opening in speedup cabin is water inlet (13), and the upper end of the water inlet (13) of speedup bulkhead is positioned at horizontal choke section (3) middle part; Described horizontal choke section (3), contraction section (5), the hull bottom face that enters water section (6) and water exit end (8) are plane; Wherein horizontal choke section (3), enter water section (6) and water exit end (8) hull bottom face parallel to each other; The described section of arching upward (7) upwards arches upward, two impellers (12) that are provided with in same level position in the section of arching upward (7) and are arranged side by side; These two impellers (12) are in transmission connection with motor (11) respectively, motor (11) drives impeller (12) rotation; Taking the bilge as benchmark, the height of horizontal choke section (3) is h1, and the height that enters water section (6) is h2, and the height of the section of arching upward (7) is h3, and the height of water exit end (8) is h4, h1 > h3 > h2 > h4; Angle between described horizontal choke section hull bottom face and contraction section hull bottom face is obtuse angle alpha, α=135 °.