CN204489120U

CN204489120U - Polar region super sonic icebreaker

Info

Publication number: CN204489120U
Application number: CN201420711490.1U
Authority: CN
Inventors: 甘进; 王旭; 叶云凌; 郭国虎; 莫增松; 王松波
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2014-11-24
Filing date: 2014-11-24
Publication date: 2015-07-22
Anticipated expiration: 2024-11-24

Abstract

A kind of polar region super sonic icebreaker, comprises hull, controller, converter, ultrasonic transmitter.Controller is located at operator's compartment, converter is positioned at bow, it is the transom of controller and ultrasonic transmitter, signal for controller and ultrasonic generator transforms, the electric signal that controller sends is converted into e-command in converter, thus control ultrasonic transmitter, make ultrasonic transmitter launch the super sonic of corresponding frequencies and corresponding power.Ultrasonic transmitter is located at bow, is fixed on the hull of bow, for launching super sonic.Utilize ultrasonic destruction ice sheet structure, energy actv. slows down the direct impact of bow and ice sheet, energy efficient, hull displacement are less than existing icebreaker, hull steel are less than existing icebreaker materials, especially reduce the materials of bow, alleviate bow weight.

Description

Polar region super sonic icebreaker

Technical field

The utility model relates to a kind of icebreaker, particularly relates to a kind of super sonic icebreaker.

Background technology

Ensure that boats and ships are by opening ice as navigation channel opened up by boats and ships in the most important condition of the safe navigation of arctic regions.Traditional icebreaker is conventional three kinds of icebreaking methods generally, and being that continous way opens ice, impact type opens ice, pile water deposition type respectively opens ice.Tradition icebreaking method inefficiency, even the ice sheet utilizing the process of continous way icebreaking method thinner, utmost dispatch is out of reach 9km/h also.Impact type and heap water deposition type method are flushed to ice sheet top to utilize gravity pressure trash ice layer, and efficiency is lower.And these methods have strict demand to fore part structure.

Ice sheet, in growth course, how by several piece corpusculum accumulated ice, forms because low temperature coheres, there is a large amount of space therebetween.Ice is under mechanical effect and calorific effect effect, understand some ice-out Cheng Shui, the water that ice-out becomes can produce cavitation effect at solid-liquid intersection under hypracoustic effect, and this effect can promote that ice sheet inside configuration structure is disintegrated, and its structural strength is weakened greatly.

Chen Hui mentions super sonic at " 2005 national vacuum metallurgies and surface engineering science study discussion proceeding " 218-221 page " ultrasonic cavitation principle and application thereof " and has the multiple effects such as machinery, warm, cavitation, and its good directionality, penetrating capacity is strong, is that a kind of being easy to obtains the acoustic energy concentrated.It is comparatively extensive in field application such as medical treatment, biology, industrial detection at present, the application such as the outer broken calculus of such as Ultrasonographic, ultrasonic solid pulverizing, emulsification, decontamination dirt.

Xiao Ting is in " research of super sonic solid losses " (Hunan University, 2010.) mention under the ul-trasonic irradiation of some strength, liquid dielectric can produce cavitation bubble, after these bubbles are formed, may be dissolved in liquid dielectric, also may float and disappear, or due to the factor of cavitation bubble self size, they magnify and compression with the phase place change of ultrasonic field in the ultrasonic field of sonic oscillation.Because ultrasonic field is uniform generally, the cavitation bubble in general in liquid dielectric keeps spherical in the process of subsiding.If the particulate in liquid dielectric is too little and when disorderlyly can not scratch ultrasonic field, will form jet beam, the bubble under this situation is also spherical to cave in.When cavitation bubble is close to solid surface, the bubble on solid surface is converted the kinetic energy of jet beam at most of energy, and the speed of jet beam can be made up to 400km per hour.That is, jet beam can impact solid surface with certain power, if power is enough large, can damage solid destruction surface.

Summary of the invention

The purpose of this utility model is to provide a kind of icebreaker super sonic icebreaking device, solves traditional icebreaker ice-breaking capacity weak by hypracoustic effect, consumes large, cannot abolish the problems such as thick ice sheet.

For achieving the above object, the technical scheme that the utility model adopts is: comprise hull, it is characterized in that: also comprise controller, converter, ultrasonic transmitter.Controller is located at operator's compartment, converter is positioned at bow, it is the transom of controller and ultrasonic transmitter, signal for controller and ultrasonic generator transforms, the electric signal that controller sends is converted into e-command in converter, thus control ultrasonic transmitter, make ultrasonic transmitter launch the super sonic of corresponding frequencies and corresponding power.Ultrasonic transmitter is located at bow, is fixed on the hull of bow, for launching super sonic.

Icebreaker, when arriving ice formation, collects the key elements such as frozen in ice degree, ice layer thickness, understands ice sheet structure, calculates the service area of icebreaking service, and adjustment super sonic transmitting frequency, designs and implement the scheme of opening ice.In operating area, sent launch super sonic instruction by controller, signal launches the super sonic of characteristic frequency via converter to ultrasonic transmitter.Utilize ultrasonic cavitation action breaks down ice sheet inner structure, to reach the effect weakening ice sheet structural strength.Monitor ice sheet degree of tortuosity simultaneously, when super sonic reaches predictive role effect, when ice sheet intensity obviously weakens, utilize suitable traditional icebreaking method to carry out continuous icebreaking service.

The utility model utilizes hypracoustic mechanical effect, calorific effect and cavitation effect, and the division at the inner Weak link place of catalysis ice sheet is disintegrated.Ice sheet, in growth course, how by several piece corpusculum accumulated ice, forms because low temperature coheres, there is a large amount of space therebetween.Ice sheet is under mechanical effect and calorific effect effect, and understand some ice-out Cheng Shui, the water be melted into can produce cavitation effect under hypracoustic effect.The high-frequency oscillation signal that ultrasonic generator sends, makes flow of liquid and produces the micro-bubble that ten hundreds of diameters is 50-500 μm, is present in the micro-bubble in liquid and vibrates under the effect of sound field.These bubbles are formed in the zone of negative pressure of super sonic longitudinal propagation, growth, and at zone of positive pressure, when acoustic pressure reaches certain value, bubble increases rapidly, then closes suddenly.And produce shock wave when bubble closes, around it, produce thousands of barometric pressures.Be referred to as in the process of " cavitation " effect this, bubble closes the high temperature and the instantaneous pressure more than 1000 air pressure that can form a few Baidu.Catalysis large ice sheet medium floe Weak link position is more fragile.Be equipped with traditional icebreaking method again, the effect that opens ice efficiently can be reached.

The utility model utilizes ultrasonic destruction ice sheet structure, energy actv. slows down the direct impact of bow and ice sheet, energy efficient, hull displacement are less than existing icebreaker, hull steel are less than existing icebreaker materials, and the materials especially reducing bow alleviate bow weight.

Accompanying drawing explanation

Fig. 1 is structure schematic front view of the present utility model.

Fig. 2 is structure schematic top plan view of the present utility model.

In figure: 1. controller, 2. converter, 3. ultrasonic transmitter, 4. hull, 5. super sonic, 6. ice sheet.

Detailed description of the invention

Comprise hull 4, controller 1, converter 2, ultrasonic transmitter 3.Controller 1 is located at operator's compartment, converter 2 is positioned at bow, be the transom of controller 1 and ultrasonic transmitter 3, transform for the signal of controller 1 with ultrasonic generator 3, the transform electrical signals that controller 1 is launched is the e-command that ultrasonic transmitter 3 can identify.Ultrasonic transmitter 3 is located at bow, is fixed on the hull 4 of bow, for launching super sonic.

Boats and ships, in the stage of opening ice, according to key elements such as navigating area difference and frozen in ice degree, ice layer thickness, are understood ice sheet structure, calculating effect service area, adjustment super sonic transmitting frequency, are designed and implement the scheme of opening ice.In operating area, controller 1 sends launches super sonic instruction, and signal launches super sonic 5 via converter 2 to ultrasonic transmitter 3, utilizes ultrasonic cavitation action breaks down ice sheet inner structure, to reach the effect that ice sheet weakens structural strength.Monitor ice sheet 6 degree of tortuosity simultaneously, when super sonic reaches predictive role effect, utilize suitable traditional icebreaking method to carry out continuous icebreaking service.

Claims

1. a polar region super sonic icebreaker, comprises hull (4), it is characterized in that: also comprise controller (1), converter (2), ultrasonic transmitter (3); Controller (1) is located at operator's compartment, converter (2) is positioned at bow, it is the transom of controller (1) and ultrasonic transmitter (3), transform for the signal inverted signal of controller (1) with ultrasonic generator (3), the electric signal that controller (1) sends is converted into e-command in converter (2), thus control ultrasonic transmitter (3), make ultrasonic transmitter (3) launch the super sonic of corresponding frequencies and corresponding power; Ultrasonic transmitter (3) is located at bow, is fixed on the hull (4) of bow, for launching super sonic.