CN113830276B - Water spray propulsion and hull integrated coupling structure - Google Patents
Water spray propulsion and hull integrated coupling structure Download PDFInfo
- Publication number
- CN113830276B CN113830276B CN202111202513.7A CN202111202513A CN113830276B CN 113830276 B CN113830276 B CN 113830276B CN 202111202513 A CN202111202513 A CN 202111202513A CN 113830276 B CN113830276 B CN 113830276B
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- China
- Prior art keywords
- water jet
- ship body
- propulsion
- hull
- ship
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 230000008878 coupling Effects 0.000 title claims abstract description 24
- 238000010168 coupling process Methods 0.000 title claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 24
- 239000007921 spray Substances 0.000 title description 2
- 238000004080 punching Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Hydraulic Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an integrated coupling structure of water jet propulsion and a ship body, wherein a water jet propulsion device is integrally arranged below a waterline at the tail part of the ship body, the lowest point of the lower edge of the water jet propulsion device does not exceed the bottom of the ship body, and the water jet propulsion device is fixedly connected to the tail part of the ship body through an impeller shell. The invention provides a new scheme for integrally coupling water jet propulsion and a ship body, which realizes the integral coupling from structure to hydrodynamic force, and simultaneously, the water jet propulsion device is assembled and disassembled in a modular way, the process is accurate and simple, and the problem of low propulsion efficiency of the water jet propulsion ship in the range of 18-30kn can be solved.
Description
Technical Field
The invention relates to a coupling technology of a water jet propeller and a ship structure, in particular to a structure capable of realizing the deep coupling of the water jet propeller and the ship from the structure to hydrodynamic force.
Background
At present, two structural types of water spraying propellers are arranged on a ship body, one type is that the propellers are arranged in a tail cabin of the ship body, a pump body of each propeller is integrally fixed on a transom, the axis of a device is basically coincident with a waterline of the ship body, water at the bottom of the ship is guided into a propeller pump through a built-in inlet flow channel, and the arrangement type of the propellers is called built-in water spraying propulsion, and is shown in fig. 1. Another arrangement is an external arrangement, in which the water jet propulsion is suspended from the bottom of the ship, see fig. 2. Whether internal or external, the water jet propulsion is well defined with the hull. The two structures have the technical problems that the water jet propulsion ship in the middle and low navigational speed ranges has low propulsion efficiency and can not realize the modular disassembly of the water jet propulsion ship and the ship body. Therefore, a new structure for coupling the water jet propulsion and the ship body needs to be designed, so that the integration and fusion of the water jet propulsion and the ship body from the structure to the hydrodynamic force are realized, the difficult problem that the propulsion efficiency of the water jet propulsion ship in the middle-low navigational speed range is low can be solved, and the modular assembly and disassembly of the water jet propulsion device and the ship body are realized, so that the process is exquisite.
Disclosure of Invention
The invention aims to provide an integrated coupling structure of water jet propulsion and a ship body, so that the integrated coupling from the structure to hydrodynamic force is realized, meanwhile, the water jet propulsion is assembled and disassembled in a modular manner, the process is accurate and simple, and the problem of low propulsion efficiency of the water jet propulsion ship in the range of 18-30kn can be solved.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a water jet propulsion and hull integration coupling structure, water jet propulsion ware wholly arranges below the afterbody waterline of hull, and water jet propulsion ware lower extreme minimum is no longer than the ship bottom, water jet propulsion ware passes through impeller casing fixed connection at the hull afterbody.
Further, the circumferential direction of a propulsion pump body of the water-jet propeller is mostly embedded in the ship body, and the lower part of the propulsion pump body is exposed outside the ship body.
Further, the front of the propulsion pump is provided with a punching type inlet flow passage which is integrated with the ship body.
Further, a cylinder-like cavity for installing the propeller is arranged behind the punching inlet flow passage, and a wedge-shaped groove is formed above the cavity so as to be matched and positioned with a wedge-shaped block of the wedge-shaped block at the upper part of the impeller shell.
Furthermore, the propulsion pump is matched with the wedge-shaped groove corresponding to the ship body through the wedge-shaped block on the upper part of the impeller shell, so that the high-precision positioning and circumferential fixation of the water spraying propeller and the ship body are realized.
Further, the propulsion pump is composed of an impeller, a guide vane body, a shafting and an impeller shell.
Further, the guide vane body is provided with an end plate for being connected with the ship body through a screw group.
Further, the water jet propeller is positioned in the ship length direction and is fixed on the ship body through an end plate and a screw group on the guide vane body of the propulsion pump.
Further, screw holes are formed in the tail of the ship body so as to install screw groups for fixing the propulsion pump.
Further, the impeller shell is smooth and transited with an inlet flow passage on the ship body.
The beneficial effects of the invention are as follows:
the invention provides a new scheme for integrally coupling water jet propulsion and a ship body, which realizes the integral coupling from structure to hydrodynamic force, and simultaneously, the water jet propulsion device is assembled and disassembled in a modular way, the process is accurate and simple, and the problem of low propulsion efficiency of the water jet propulsion ship in the range of 18-30kn can be solved.
Drawings
FIG. 1 is a schematic view of a conventional built-in water jet propulsion system;
FIG. 2 is a schematic view of a conventional external water jet propulsion structure;
FIG. 3 is a schematic view of the integrated coupling structure of the water jet propulsion and the hull of the present invention;
FIG. 4 is a cross-sectional view of the coupling structure of the water jet propulsion and the hull;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a cross-sectional view of the coupling A-A of the water jet propulsion apparatus to the hull;
FIG. 7 is a cross-sectional view of a hull aft structure;
FIG. 8 is a left side view of FIG. 7;
FIG. 9 is a schematic view of a water jet drive pump vane body and end plate;
FIG. 10 is a right side view of FIG. 9;
FIG. 11 is a view of a water jet propulsion pump impeller housing;
fig. 12 is a left side view of fig. 11.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 3 to 12, in the integrated coupling structure of water jet propulsion and a ship body, the water jet propulsion is integrally arranged below the waterline at the tail part of the ship body 1, and the lowest point of the lower edge of the water jet propulsion is not more than the bottom of the ship. Most of the circumference of the water jet propeller is embedded in the hull, a punching inlet runner is arranged in front of the propulsion pump 3, and the water jet propeller is fixed at the tail part (stern plate 1.1 and bottom plate 1.4) of the hull 1 through a wedge-shaped block 3.4.1 of the impeller shell 3.4 and a screw group 2, and the details are shown in figures 3 and 4.
The pump body of the propulsion pump 3 is mostly embedded in the hull 1 along the circumferential direction, the lower part of the propulsion pump is exposed out of the hull 1, and the front part of the propulsion pump 3 is provided with a punching inlet runner 1.2 which is integrated with the hull. The water jet propulsion pump is matched with the wedge-shaped groove 1.3 corresponding to the ship body through the wedge-shaped block 3.4.1 on the upper part of the impeller shell 3.4, so that the high-precision positioning and circumferential fixation of the water jet propulsion device and the ship body are realized, and the water jet propulsion device is positioned in the ship length direction and fixed on the ship body through the end plate 3.2.1 on the vane body of the propulsion pump and the screw group 2, as shown in figures 4,5 and 6.
The tail of the ship body 1 is provided with a punching type inlet runner 1.2, a cylinder-like cavity for installing a propeller is arranged behind the punching type inlet runner 1.2, and a wedge-shaped groove 1.3 is arranged above the cavity so as to be matched and positioned with a wedge-shaped block 3.4.1 at the upper part of the impeller shell 3.4. Screw holes are machined in the hull aft tail plate 1.1 to mount a screw set 2 for securing the thrust pump, see fig. 7,8.
The water jet propulsion pump 3 consists of an impeller 3.1, a guide vane body 3.2, a shafting 3.3 and an impeller shell 3.4. The guide vane body 3.2 is provided with an end plate 3.2.1 for coupling with the hull by means of a screw set 2, see fig. 9, 10. The impeller shell 3.4 is provided with a wedge-shaped block 3.4.1 for matching with the wedge-shaped groove 1.3 of the ship body, so that the accurate positioning and mounting of the propeller on the ship body are realized, and the impeller shell 3.4 and an inlet runner on the ship body 1 are in smooth transition, as shown in figures 11 and 12.
The specific implementation process of the invention comprises the following steps:
a) Processing an inlet runner 1.2 and a cylinder-like cavity with a wedge-shaped groove 1.3 for installing a propeller at the tail part of a ship body 1;
b) Assembling an impeller 3.1, a guide vane body 3.2, a thrust pump shaft system 3.3 and a thrust pump impeller shell 3.4 of the thrust pump in place, and ensuring that wedge-shaped blocks of a guide vane body end plate 3.2.1 and an impeller shell 3.4.1 are positioned right above so as to be in smooth butt joint with the ship body geometry;
c) According to the pairing principle of the wedge-shaped blocks 3.4.1 of the impeller shell 3.4 and the hull wedge-shaped grooves 1.3, the propulsion pump is installed in place, the screw group 2 is screwed on, the assembly of the propulsion pump on a ship is completed, and then a shafting is connected, so that the system installation is completed.
The invention adopts a new scheme of coupling water jet propulsion with a ship body, the water jet propulsion device is integrally arranged below the waterline at the tail part of the ship body, an inlet runner of the propulsion device and the ship body form an integral body, and the type of the inlet runner is a punching type. The propulsion pump is positioned and installed in a matched mode through wedge blocks on the impeller shell and wedge grooves corresponding to the tail of the ship body, and the propeller is fixed on the ship body through end plates on the propeller guide vane body through a set of screws. The impeller shell of the water jet propulsion pump is connected with the inlet runner smoothly and transitionally. The propelling pump is integrally assembled and disassembled with the wedge-shaped groove through the wedge-shaped block.
Claims (5)
1. The utility model provides a water jet propulsion and hull integration coupling structure which characterized in that: the water spraying propeller is integrally arranged below the waterline of the tail part of the ship body, the lowest point of the lower edge of the water spraying propeller does not exceed the bottom of the ship, and the water spraying propeller is fixedly connected to the tail part of the ship body through the impeller shell; the pump body of the propulsion pump of the water jet propeller is mostly embedded in the hull in the circumferential direction, and the lower part of the pump body is exposed outside the hull; the front of the propulsion pump is provided with a punching type inlet runner which is integrated with the ship body; a similar cylindrical cavity for installing the propeller is arranged behind the punching type inlet flow passage, and a wedge-shaped groove is arranged above the cavity so as to be matched and positioned with a wedge-shaped block of the wedge-shaped block at the upper part of the impeller shell; the propulsion pump is matched with a wedge-shaped groove corresponding to the ship body through a wedge-shaped block on the upper part of the impeller shell, so that the high-precision positioning and circumferential fixation of the water spraying propeller and the ship body are realized; the impeller shell is smooth and transited with an inlet runner on the hull.
2. The water jet propulsion and hull integrated coupling structure of claim 1, wherein: the propulsion pump consists of an impeller, a guide vane body, a shafting and an impeller shell.
3. The water jet propulsion and hull integrated coupling structure of claim 2, wherein: the guide vane body is provided with an end plate which is used for being connected with the ship body through a screw group.
4. The water jet propulsion and hull integrated coupling structure of claim 1, wherein: the water spraying propeller is positioned in the ship length direction and is fixed on the ship body through an end plate and a screw group on the guide vane body of the propulsion pump.
5. The water jet propulsion and hull integrated coupling structure of claim 1, wherein: screw holes are formed in the tail of the ship body so as to install screw groups for fixing the propulsion pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202513.7A CN113830276B (en) | 2021-10-15 | 2021-10-15 | Water spray propulsion and hull integrated coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202513.7A CN113830276B (en) | 2021-10-15 | 2021-10-15 | Water spray propulsion and hull integrated coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113830276A CN113830276A (en) | 2021-12-24 |
| CN113830276B true CN113830276B (en) | 2023-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111202513.7A Active CN113830276B (en) | 2021-10-15 | 2021-10-15 | Water spray propulsion and hull integrated coupling structure |
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| CN (1) | CN113830276B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6071156A (en) * | 1998-10-30 | 2000-06-06 | Bird-Johnson Company | Surface vessel with a fully submerged waterjet propulsion system |
| CN1655984A (en) * | 2002-05-29 | 2005-08-17 | 西门子公司 | Fast seagoing vessel with double bottom and water jet propulsion |
| CN104215426A (en) * | 2014-09-22 | 2014-12-17 | 中国船舶工业集团公司第七〇八研究所 | Measuring device and measuring method of internal flow field and external characteristic of water-jet propeller |
| CN108284934A (en) * | 2017-12-29 | 2018-07-17 | 中国船舶工业集团公司第七0八研究所 | A kind of blade detachable type hydraulic jet propulsion blade wheel structure |
| CN108748971A (en) * | 2018-03-08 | 2018-11-06 | 哈尔滨工程大学 | A kind of integrated hydraulic propeller processing method based on 3D printing |
| CN111824326A (en) * | 2020-07-29 | 2020-10-27 | 中国船舶工业集团公司第七0八研究所 | Ship structure deeply coupled with water jet propulsion unit |
| CN212890796U (en) * | 2020-09-04 | 2021-04-06 | 大连獐子岛船舶制造有限公司 | Novel ship body |
| CN112776967A (en) * | 2021-02-10 | 2021-05-11 | 北京理工大学 | Axial-flow type double-duct water jet propeller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4272135B2 (en) * | 2004-09-10 | 2009-06-03 | 本田技研工業株式会社 | Water jet propulsion machine |
-
2021
- 2021-10-15 CN CN202111202513.7A patent/CN113830276B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6071156A (en) * | 1998-10-30 | 2000-06-06 | Bird-Johnson Company | Surface vessel with a fully submerged waterjet propulsion system |
| CN1655984A (en) * | 2002-05-29 | 2005-08-17 | 西门子公司 | Fast seagoing vessel with double bottom and water jet propulsion |
| CN104215426A (en) * | 2014-09-22 | 2014-12-17 | 中国船舶工业集团公司第七〇八研究所 | Measuring device and measuring method of internal flow field and external characteristic of water-jet propeller |
| CN108284934A (en) * | 2017-12-29 | 2018-07-17 | 中国船舶工业集团公司第七0八研究所 | A kind of blade detachable type hydraulic jet propulsion blade wheel structure |
| CN108748971A (en) * | 2018-03-08 | 2018-11-06 | 哈尔滨工程大学 | A kind of integrated hydraulic propeller processing method based on 3D printing |
| CN111824326A (en) * | 2020-07-29 | 2020-10-27 | 中国船舶工业集团公司第七0八研究所 | Ship structure deeply coupled with water jet propulsion unit |
| CN212890796U (en) * | 2020-09-04 | 2021-04-06 | 大连獐子岛船舶制造有限公司 | Novel ship body |
| CN112776967A (en) * | 2021-02-10 | 2021-05-11 | 北京理工大学 | Axial-flow type double-duct water jet propeller |
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| Publication number | Publication date |
|---|---|
| CN113830276A (en) | 2021-12-24 |
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