CN202175163U - Energy-saving device at tail part of ship - Google Patents
Energy-saving device at tail part of ship Download PDFInfo
- Publication number
- CN202175163U CN202175163U CN 201120255818 CN201120255818U CN202175163U CN 202175163 U CN202175163 U CN 202175163U CN 201120255818 CN201120255818 CN 201120255818 CN 201120255818 U CN201120255818 U CN 201120255818U CN 202175163 U CN202175163 U CN 202175163U
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- ship
- energy
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- tail part
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Abstract
The utility model discloses an energy-saving device at the tail part of a ship, which comprises a ship body, wherein at least one arc-shaped rectifying fin is fixedly arranged at the tail part of the ship body, and the upper surface and the lower surface of the arc-shaped rectifying fin are both circular-arc surfaces which are convex in the middle. The energy-saving device at the tail part of the ship adopts the arc-shaped rectifying fin mounted on a left airfoil-shaped device and a right airfoil-shaped device at the tail part of the ship, and improves the coming stream in the front of a propeller by rectifying a wake filed at the tail part, thereby improving propulsive efficiency, so as to realize the purpose of saving energy.
Description
Technical field
The utility model relates to a kind of Ship Energy Saving Device, and particularly a kind of energy saver of boats and ships afterbody is applicable to high-speed discharge type square tail boats and ships.
Background technology
Ship energy saving is one of focus of maritime industry concern.Because rise of the oil price is rapid, ship transportation IFO intermediate fuel oil expense proportion sharply increases.Ship energy saving, reduction fuel discharge and fuel cost, raising device economy have become an important topic.Each big shipping agency and ships that transport improve economy in order to reduce fuel cost, and ship energy saving becomes the task of top priority.
The utility model content
The technical matters that the utility model will solve is in order to overcome prior art marine fuel bad consumption, and the defective that operating cost is high provides a kind of energy saver of boats and ships afterbody that can be effectively energy-conservation.
The utility model solves above-mentioned technical matters through following technical proposals: a kind of energy saver of boats and ships afterbody; Comprise a hull; Its characteristics are; The afterbody of said hull is installed with at least one arc rectification fin, and the upper and lower surfaces of said arc rectification fin is the arc surface of intermediate projections.
Preferably, the one edge of said arc rectification fin offers a V-type opening, the afterbody welding of said V-type opening and said hull.
In the utility model, but above-mentioned optimum condition combination in any on the basis that meets this area general knowledge promptly gets each preferred embodiment of the utility model.
The positive progressive effect of the utility model is: the utility model adopt camber rectification fin be installed on the boats and ships afterbody about on the two leaf airfoil type devices; Through rectification to the stern wake field; Improve screw propeller the place ahead incoming flow,, thereby reach purpose of energy saving with the raising propulsion coefficient.
Description of drawings
Fig. 1 is the scheme drawing of arc rectification fin in the utility model.
Fig. 2 is the longitudinal section of arc rectification fin in the utility model.
Fig. 3 is the scheme drawing that is connected of arc rectification fin and boats and ships afterbody in the utility model.
The specific embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to specify the technical scheme of the utility model.
Shown in Fig. 1-3, the energy saver of the utility model boats and ships afterbody comprises a hull 1 and an arc rectification fin 2.Arc rectification fin 2 is installed in the afterbody of hull 1.The upper and lower surfaces of arc rectification fin 2 is the arc surface of intermediate projections, and promptly the front and back end of its vertical section all is arcuation.Wherein, front-end processing helps reducing the impact resistance of incoming flow, cooperates rational longitudinal angle, can produce certain additional thrust.The rear end extends back, and makes that the rectification effect before the screw propeller strengthens, and can obtain better energy-saving effect.
Preferably, offer one " V " type opening 21, then with the afterbody welding of " V " type opening 21 with hull 1 in the one edge of arc rectification fin 2.Can guarantee that like this arc rectification fin 2 is firmly fixed at the afterbody of hull 1, prevent that the impact of current from changing the installation site and the direction of arc rectification fin 2.
Certainly, the quantity of arc rectification fin 2 can be for a plurality of, and its installation site and quantity are confirmed according to the real work situation.
After the energy saver that sets the boats and ships afterbody,, when designed draft state and ballast draft state, the ship model of 20.6 ten thousand tons of bulge carriers no energy saver and contrast test with said energy saver have been carried out respectively in order to verify the effect of this energy saver.
Model test result of calculation shows: after the arc rectification fin of the utility model was installed, designed draft state thrust deduction reduced to some extent, and hull efficiency and relative rotative efficiency improve, and propulsion coefficient improves more than 2%, and promptly energy-saving effect is more than 2%.At the ballast draft state, thrust deduction decreases, and propulsion coefficient improves, and energy-saving effect is approximately 3%.This shows no matter arc rectification fin is at the designed draft state, still all have energy-saving effect at the ballast draft state.This energy saver has simple in structure, and the characteristics that installation and processing is simple and easy to do are convenient to real ship and are used.
Under the actual conditions, 20.6 ten thousand tons of bulge carriers consumed 65 tons of fuel oils by one day, and navigation in a year was remembered nearly 20000 tons of annual fuel consumption in 300 days.After utilizing this energy saver, this bulge carrier can be practiced thrift 600 tons of fuel oils every year.By present fuel price per ton is 650 dollars, 390,000 dollars (about 2,500,000 yuans) of annual saving.In addition, this energy saver can also make discharge amount of exhaust gas significantly reduce, and reduces 200 tons of carbon-dioxide emissions approximately, can bring the effect of cost efficiency, emission abatement to ship in operation, produces good economic benefit and social benefit.
Though more than described the specific embodiment of the utility model, it will be understood by those of skill in the art that these only are casehistorys, the protection domain of the utility model is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite of principle that does not deviate from the utility model and essence, but these changes and modification all fall into the protection domain of the utility model.
Claims (2)
1. the energy saver of a boats and ships afterbody comprises a hull, it is characterized in that, the afterbody of said hull is installed with at least one arc rectification fin, and the upper and lower surfaces of said arc rectification fin is the arc surface of intermediate projections.
2. the energy saver of boats and ships afterbody as claimed in claim 1 is characterized in that, the one edge of said arc rectification fin offers a V-type opening, the afterbody welding of said V-type opening and said hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120255818 CN202175163U (en) | 2011-07-19 | 2011-07-19 | Energy-saving device at tail part of ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120255818 CN202175163U (en) | 2011-07-19 | 2011-07-19 | Energy-saving device at tail part of ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175163U true CN202175163U (en) | 2012-03-28 |
Family
ID=45865062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120255818 Expired - Fee Related CN202175163U (en) | 2011-07-19 | 2011-07-19 | Energy-saving device at tail part of ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202175163U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569310A (en) * | 2012-07-31 | 2014-02-12 | 住友重机械海洋工程株式会社 | Full ship |
| CN110770117A (en) * | 2017-11-22 | 2020-02-07 | 川崎重工业株式会社 | Tail fin and ship with same |
| CN112660296A (en) * | 2020-11-20 | 2021-04-16 | 武汉船舶设计研究院有限公司 | Support arrangement for acoustics array under water |
| TWI749106B (en) * | 2016-12-27 | 2021-12-11 | 日商日本日聯海洋股份有限公司 | Fin equipment and ships |
-
2011
- 2011-07-19 CN CN 201120255818 patent/CN202175163U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569310A (en) * | 2012-07-31 | 2014-02-12 | 住友重机械海洋工程株式会社 | Full ship |
| TWI749106B (en) * | 2016-12-27 | 2021-12-11 | 日商日本日聯海洋股份有限公司 | Fin equipment and ships |
| CN110770117A (en) * | 2017-11-22 | 2020-02-07 | 川崎重工业株式会社 | Tail fin and ship with same |
| CN112660296A (en) * | 2020-11-20 | 2021-04-16 | 武汉船舶设计研究院有限公司 | Support arrangement for acoustics array under water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20200719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |