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CN-224211215-U - Bulb bow structure of steamship

CN224211215UCN 224211215 UCN224211215 UCN 224211215UCN-224211215-U

Abstract

The utility model relates to a bulb structure of a ship. The problems of high traveling wave resistance and poor stability of the bulbous bow in the prior art are solved. It comprises a bulb body, two sides of the bulb body are provided with an overcurrent component, the peripheral outer wall of the overcurrent component is provided with a sealing cover plate component, the bulb is equipped with movable load control mechanism inside the main part, and the two sides of main part bottom of bulb are equipped with the buoyancy strutting arrangement that receives can extend. The utility model has the advantages that the wave-making resistance is reduced through the linear optimization of the bulb body, the purposes of reducing oil consumption and carbon emission are achieved, and the sinking and floating stability of the bulb body is effectively ensured.

Inventors

  • LI YANGGANG
  • CHEN JINGYU
  • YE ZIJIAN

Assignees

  • 国营海东造船厂

Dates

Publication Date
20260508
Application Date
20250520

Claims (10)

  1. 1. The utility model provides a bulb structure of steamer, includes bulb main part (1), its characterized in that, bulb main part (1) both sides be equipped with overcurrent subassembly (2), and overcurrent subassembly (2) circumference outer wall is equipped with sealed apron subassembly (3), bulb main part (1) inside be equipped with movable load control mechanism (4), bulb main part (1) bottom both sides be equipped with buoyancy strutting arrangement (5) that receive the pressure energy and stretch.
  2. 2. The bulb structure of a ship according to claim 1, wherein the flow passing assembly (2) comprises flow inlet guide grooves (21) arranged at two side ends of the bulb body (1), arc-shaped protruding portions (22) are arranged at two sides of the bulb body (1) and positioned at the end parts of the flow inlet guide grooves (21), and flow inlet channels (23) which are arranged corresponding to the flow inlet guide grooves (21) are arranged on the arc-shaped protruding portions (22).
  3. 3. The bulbous bow structure of a ship according to claim 2, wherein the outer wall of the arc-shaped protrusion (22) is provided with a drainage guide groove (24) which is communicated with the inflow channel (23), and one end of the drainage guide groove (24) far away from the inflow channel (23) is arranged obliquely upwards.
  4. 4. A bulbous bow structure of a ship according to claim 3, wherein the recess depth of the inflow guide groove (21) is larger than the recess depth of the drain guide groove (24), and the inflow channel (23) is disposed obliquely between the inflow guide groove (21) and the drain guide groove (24).
  5. 5. The bulbous bow structure of a ship according to claim 4, wherein said sealing cover assembly (3) comprises an arc-shaped inflow baffle (31) for closing the inflow guide groove (21), and an arc-shaped sealing plate (32) for closing the drainage guide groove (24) is provided on the outer wall of said arc-shaped protrusion (22).
  6. 6. The bulb structure of a ship according to claim 5, wherein the arc-shaped inflow baffle plate (31), the arc-shaped sealing plate (32) and the bulb main body (1) are integrally formed, and no contact is generated between the inner walls of the arc-shaped inflow baffle plate (31) and the arc-shaped sealing plate (32) and the corresponding inflow guide groove (21) and the corresponding drainage guide groove (24).
  7. 7. The bulb structure of a ship according to claim 1, characterized in that the buoyancy support device (5) comprises a support base (51) horizontally arranged at the bottom of the bulb body (1), one end of the support base (51) close to the bulb body (1) is connected with a first support base (53) through a first elastic telescopic structure (52), and one end of the first support base (53) is connected with a second support base (55) through a second elastic telescopic structure (54).
  8. 8. The bulb structure of a ship according to claim 7, wherein the upper end surface of the supporting base (51) is provided with a first positioning groove (56) for the first supporting base (53) to be clamped in, and the upper end surface of the first supporting base (53) is provided with a second positioning groove (57) for the second supporting base (55) to be clamped in.
  9. 9. The bulb structure of a ship according to claim 1, characterized in that the movable load control mechanism (4) comprises a lower load bin (41) arranged in the bulb main body (1), the bottom of the lower load bin (41) is fixedly provided with a load ball blocking part (42), and one end of the load ball blocking part (42) is provided with a lower movable load ball (43).
  10. 10. The bulb structure of a ship according to claim 9, wherein an upper load bin (44) is provided at an upper end of the lower load bin (41), an upper movable load ball (45) is movably provided in the upper load bin (44), and the upper movable load ball and the lower movable load ball (43) are provided at both ends.

Description

Bulb bow structure of steamship Technical Field The utility model relates to the technical field of ships, in particular to a bulb bow structure of a ship. Background As is well known, the bulb is a bulbous protrusion below the water surface of the bow portion, a structure used to overcome the drag of the ship. The size and shape of the ship body are matched with the ship body, so that the pressure of water can be counteracted, the generated ship wave is small, the water flow condition near the ship body can be improved, and the resistance of the ship can be reduced. When the ship is designed, the theoretical estimated navigational speed can not meet the design requirement, and under the specific condition, the waterline length can be properly increased to reduce the resistance, and the nose-head bulbous bow device just solves the problem, which is equivalent to increasing the waterline length, thereby reducing the resistance and improving the rapidity and the economy of the ship. In addition, the existing bulb has large traveling wave resistance and poor stability, is not beneficial to energy conservation and has high fuel consumption cost. In order to solve the defects existing in the prior art, long-term exploration is performed, and various solutions are proposed. For example, chinese patent literature discloses a bulb device [ CN202020577888.6], which includes a conical shell and a plurality of diaphragms, wherein a plurality of diaphragms are fixed inside the conical shell, the conical shell is fixedly connected with an outer plate at the lower part of the bow, and the conical shell and the hull outer plate cooperate to form a first sealed air cavity. The scheme solves the problems that the bulb and the hull are integrally formed, and are difficult to maintain and water seepage after collision in the prior art to a certain extent, but the scheme still has a plurality of defects, such as large traveling wave resistance and poor stability of the existing bulb, energy conservation and high fuel consumption cost. Disclosure of Invention The object of the present utility model is to provide a bulb structure of a ship with respect to the above-mentioned problems. The bulb structure of the ship comprises a bulb body, wherein the two sides of the bulb body are provided with overcurrent assemblies, the peripheral outer wall of each overcurrent assembly is provided with a sealing cover plate assembly, a movable load control mechanism is arranged in the bulb body, and the two sides of the bottom of the bulb body are provided with buoyancy supporting devices capable of being stretched under pressure. In the bulb structure of the ship, the overflow assembly comprises inflow guide grooves arranged at the two side ends of the bulb body, arc-shaped protruding portions are arranged at the two sides of the bulb body and positioned at the two ends of the inflow guide grooves, and inflow channels corresponding to the inflow guide grooves are arranged on the arc-shaped protruding portions. In the bulbous bow structure of the ship, the outer wall of the arc-shaped protruding portion is provided with a drainage guide groove communicated with the inflow channel, and one end of the drainage guide groove, which is far away from the inflow channel, is obliquely upwards arranged. In the bulbous bow structure of the ship, the depression depth of the inflow guide groove is larger than the depression depth of the drainage guide groove, and the inflow channel is obliquely arranged between the inflow guide groove and the drainage guide groove. In the bulbous bow structure of the ship, the sealing cover plate assembly comprises an arc inflow baffle plate for sealing the inflow guide groove, and an arc sealing plate for sealing the drainage guide groove is arranged on the outer wall of the arc protruding portion. In the bulb structure of the ship, the arc-shaped inflow baffle plate, the arc-shaped sealing plate and the bulb main body are integrally formed, and the inner walls of the arc-shaped inflow baffle plate and the arc-shaped sealing plate are not contacted with the corresponding inflow guide groove and the corresponding drainage guide groove. In the bulb structure of the ship, the buoyancy supporting device comprises a supporting base horizontally arranged at the bottom of the bulb main body, one end, close to the bulb main body, of the supporting base is connected with a first supporting seat through a first elastic telescopic structure, and one end of the first supporting seat is connected with a second supporting seat through a second elastic telescopic structure. In the bulb structure of the ship, the upper end face of the supporting base is provided with the first positioning groove for the first supporting seat to be clamped in, and the upper end face of the first supporting seat is provided with the second positioning groove for the second supporting seat to be clamped in. In the bulb structure of the ship, the movable lo