Double-shell oil tank cabin wall structure

Abstract

The double-shell oil tank cabin wall structure comprises a cargo hold body and an isolation layer, the isolation layer comprises two plane bulkhead plates, a top plate, reinforcing toggle plates, a bottom plate, a ballast header pipe and a cargo oil header pipe, the two plane bulkhead plates are welded to the cargo hold body, and the top plate and the bottom plate are integrally welded to the plane bulkhead plates. The reinforcing bracket is located between the top plate and the bottom plate, the reinforcing bracket is welded to the two plane bulkhead plates, the ballast header pipe and the cargo oil header pipe are located between the bottom plate and the bottom face of an inner cavity of the cargo hold body, the double-shell oil tank cabin wall structure is mainly composed of the two plane bulkhead plates, and the two bulkheads are kept horizontal and serve as a ballast area; the two bulkheads are structurally reinforced through the reinforcing ribs, meanwhile, the reinforcing toggle plates are arranged between the bulkheads to increase the structural strength and resist deformation, the cargo oil header pipe, the ballast header pipe and the like are intensively arranged in the area to facilitate maintenance, the space in the cabin is saved, and maintenance and cabin flushing are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of oil tanker construction, in particular to a double-hull oil tanker bulkhead structure. Background Art

[0002] The bulkhead structure of ships has always been an important topic in structural research. When calculating the finite element of ships, it was found that the stress on the central longitudinal bulkhead is greater than that in other places, and a larger plate thickness is needed to meet the stress requirements. Conventional oil tankers are only equipped with one central longitudinal bulkhead, and the structure, piping, etc. are arranged in the cabin, which is inconvenient to operate. For this reason, we proposed a double-hull oil tanker bulkhead structure. Summary of the invention

[0003] The object of the present invention is to provide a double-hull oil tanker bulkhead structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-hull oil tanker bulkhead structure, comprising a cargo hold body and an insulation layer, the insulation layer comprising two plane bulkhead plates, a top plate, a reinforced bracket, a bottom plate, a ballast main pipe and a cargo oil main pipe, the two plane bulkhead plates are welded to the cargo hold body, the top plate and the bottom plate are welded to the plane bulkhead plates to form an integral body, the reinforced bracket is located between the top plate and the bottom plate, and the reinforced bracket is welded to the two plane bulkhead plates, the ballast main pipe and the cargo oil main pipe are located between the bottom plate and the bottom surface of the inner cavity of the cargo hold body, and the ends of the ballast main pipe and the cargo oil main pipe are both provided with valves, the valves are movably provided with a rotating rod, and the valves are also provided with a connecting assembly; the connecting assembly comprises a flange fixedly connected to the valve, a linkage gear is rotatably provided inside the flange, a square rod is fixedly installed on the side of the linkage gear, a bolt is slidably connected to the square rod, a fixing nut is threadedly connected to the bolt, and the fixing nut is also fixedly connected to the flange, a limit block is fixedly installed at the end of the square rod, and the method The blue plate is also provided with a transmission assembly; the transmission assembly includes an L-shaped seat fixedly connected to the flange, a protective ring is fixedly installed on the side of the L-shaped seat, a first gear shaft, a second gear shaft and a third gear shaft are rotatably arranged inside the L-shaped seat, a first differential gear is fixedly installed on the end of the first gear shaft, and a pulley group is arranged on the first gear shaft, the first gear shaft is transmission-connected to the rotating rod through the pulley group, a second differential gear and a main bevel gear are respectively fixedly installed at both ends of the second gear shaft, a sub-bevel gear and a transmission gear are respectively fixedly installed at both ends of the third gear shaft, the transmission assembly also includes a bearing arranged on the flange, the flange is rotatably connected with a movable ring through the bearing, an external gear ring is fixedly installed on the outer surface of the movable ring, and an internal gear ring meshingly connected with the linkage gear is fixedly installed on the inner surface of the movable ring, the first differential gear is meshingly connected with the second differential gear, the main bevel gear is meshingly transmission-connected with the sub-bevel gear, and the transmission gear is meshingly connected with the external gear ring.

[0005] Preferably, two valves are provided, and the two valves are respectively located on the ends of the ballast main pipe and the cargo oil main pipe passing through the cargo tank body.

[0006] Preferably, the flange is provided with an auxiliary hole for passing a bolt, and the diameter of the auxiliary hole is larger than the diameter of the bolt.

[0007] Preferably, the limit block is located inside the bolt, and the limit block is also slidably connected to the bolt.

[0008] Preferably, the shape of the limit block is consistent with the shape of the square rod, and the width of the limit block is greater than the width of the square rod.

[0009] Preferably, the external gear ring is located in the inner cavity of the protective ring, and a notch for accommodating the external gear ring is provided on the L-shaped seat.

[0010] Preferably, the size of the first differential gear is larger than that of the second differential gear, and the first differential gear is located above the main bevel gear.

[0011] Preferably, the bearing comprises an inner ring layer, a central ball layer and an outer ring layer, the inner ring layer is fixedly connected to the flange, and the outer ring layer is fixedly connected to the movable ring.

[0012] Preferably, the central ball layer is located between the inner ring layer and the outer ring layer, and the inner ring layer is rotatably connected to the outer ring layer through the central ball layer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention is mainly composed of two plane bulkhead plates, which are kept level and used as ballast areas. The two bulkheads are not only structurally reinforced with reinforcing ribs, but also reinforced brackets are arranged between the bulkheads to increase the structural strength to resist deformation. The cargo oil main pipe and the ballast main pipe are centrally arranged in this area for easy maintenance, thereby saving space in the cabin and facilitating maintenance and tank flushing.

[0015] 2. In the present invention, a connecting assembly and a transmission assembly are respectively set up on the valve used to control the state of the main pipe, so that the state of the bolt used to connect the material delivery pipe is linked to the rotary rod. Therefore, after the rotary rod is rotated to open the valve, the transmission parts contained in the transmission assembly can be used to screw the bolt into the threaded hole at the end of the water or oil delivery pipe to fix it on the main pipe, thereby ensuring stable oil or water delivery and improving the performance of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is an exploded view of the insulating layer structure of the present invention;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 4 It is a schematic diagram of the partial structure cutaway of the present invention;

[0020] Figure 5 This is an exploded view of the square rod structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the connection structure of the pulley assembly of the present invention;

[0022] Figure 7 for Figure 6 A magnified schematic diagram of the structure at B in the middle;

[0023] Figure 8 An exploded view of the bearing structure of the present invention;

[0024] Fig. 9 It is an exploded view of the protection ring structure of the present invention.

[0025] In the figure: 1. cargo hold body; 2. insulation layer; 21. plane bulkhead plate; 22. top plate; 23. reinforced bracket; 24. bottom plate; 25. ballast main pipe; 26. cargo oil main pipe; 3. valve; 31. rotary rod; 4. connecting assembly; 41. flange; 42. bolt; 43. connecting gear; 44. square rod; 45. fixing nut; 46. limit block; 5. transmission assembly; 51. L-shaped seat; 52. protective ring; 53. pulley group; 54. first gear shaft; 55. first differential gear; 56. second differential gear; 57. second gear shaft; 58. main bevel gear; 59. secondary bevel gear; 510. third gear shaft; 511. transmission gear; 512. movable ring; 513. internal gear ring; 514. external gear ring; 515. bearing. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-9 The present invention provides a technical solution: a double-hull oil tanker bulkhead structure, comprising a cargo hold 1 and an insulation layer 2, the insulation layer 2 comprising two plane bulkhead plates 21, a top plate 22, a reinforcing bracket 23, a bottom plate 24, a ballast main pipe 25 and a cargo oil main pipe 26, the two plane bulkhead plates 21 are welded to the cargo hold 1, the top plate 22 and the bottom plate 24 are welded to the plane bulkhead plates 21 to form an integral body, the reinforcing bracket 23 is located between the top plate 22 and the bottom plate 24, and the reinforcing bracket 23 is welded to the two plane bulkhead plates 21, the ballast main pipe 25 and the cargo oil main pipe 26 are located between the bottom plate 24 and the bottom surface of the inner cavity of the cargo hold 1, and ... The ends of the ballast main pipe 25 and the cargo oil main pipe 26 are both provided with valves 3, on which a rotary rod 31 is movably provided, and a connecting assembly 4 is also provided on the valve 3; there are two valves 3 in total, and the two valves 3 are respectively located on the ends of the ballast main pipe 25 and the cargo oil main pipe 26 passing through the cargo hold body 1, and the valve 3 on the ballast main pipe 25 and the valve 3 on the cargo oil main pipe 26 are vertically arranged to each other, so the rotary rod 31 of the valve 3 on the ballast main pipe 25 and the rotary rod 31 of the valve 3 on the cargo oil main pipe 26 are staggered to avoid mutual interference and ensure the rationality of the overall structural design.

[0028] The connecting assembly 4 includes a flange 41 fixedly connected to the valve 3, a linkage gear 43 is rotatably arranged inside the flange 41, a square rod 44 is fixedly installed on the side of the linkage gear 43, a bolt 42 is slidably connected to the square rod 44, a fixing nut 45 is threadedly connected to the bolt 42, and the fixing nut 45 is also fixedly connected to the flange 41, a limiting block 46 is fixedly installed at the end of the square rod 44, and a transmission assembly 5 is also arranged on the flange 41; an auxiliary hole for passing the bolt 42 is opened on the flange 41, and the diameter of the auxiliary hole is larger than the diameter of the bolt 42, the limiting block 46 is located inside the bolt 42, and the limiting block 46 is also slidably connected to the bolt 42, the shape of the limiting block 46 is consistent with the shape of the square rod 44, and the width of the limiting block 46 is larger than the width of the square rod 44, and the establishment of the limiting block 46 can avoid the phenomenon of the bolt 42 being detached, so as to improve the stability of the bolt 42 structure.

[0029] The transmission assembly 5 includes an L-shaped seat 51 fixedly connected to the flange 41, a protective ring 52 is fixedly installed on the side of the L-shaped seat 51, a first gear shaft 54, a second gear shaft 57 and a third gear shaft 510 are rotatably arranged inside the L-shaped seat 51, a first differential gear 55 is fixedly installed at the end of the first gear shaft 54, and a pulley group 53 is arranged on the first gear shaft 54, the first gear shaft 54 ​​is transmission-connected to the rotating rod 31 through the pulley group 53, a second differential gear 56 and a main bevel gear 58 are fixedly installed at both ends of the second gear shaft 57, a sub-bevel gear 59 and a transmission gear 511 are fixedly installed at both ends of the third gear shaft 510, the transmission assembly 5 also includes a bearing 515 arranged on the flange 41, the flange 41 is rotatably connected to a movable ring 512 through the bearing 515, an outer surface of the movable ring 512 is fixedly installed with an outer gear ring 514, and an inner surface of the movable ring 512 is fixedly installed with an inner gear meshing with the linkage gear 43 The outer ring gear 514 is meshed and connected with the main bevel gear 58, and the auxiliary bevel gear 59 is meshed and connected with the transmission gear 511. The outer ring gear 514 is located in the internal cavity of the protective ring 52. A notch is provided on the L-shaped seat 51 to accommodate the outer ring gear 514. The size of the first differential gear 55 is larger than that of the second differential gear 56, which can effectively improve the efficiency of the overall structure. The fast feeding pipe is fixed on the flange 41 to facilitate the subsequent feeding work, and the first differential gear 55 is located above the main bevel gear 58. The bearing 515 includes an inner ring layer, a central ball layer and an outer ring layer. The inner ring layer is fixedly connected to the flange 41, and the outer ring layer is fixedly connected to the movable ring 512. The central ball layer is located between the inner ring layer and the outer ring layer. The inner ring layer is rotatably connected to the outer ring layer through the central ball layer, which can ensure the flexibility of the structure to meet actual use requirements.

[0030] Working principle: Two planar bulkhead plates 21 are welded to the center of the cargo hold 1, which can divide the interior of the cargo hold 1 into two cavities. At the same time, the top plate 22, the reinforcing bracket 23 and the bottom plate 24 are welded between the two planar bulkhead plates 21, wherein the reinforcing bracket 23 can enhance the overall strength, and the space between the top plate 22 and the bottom plate 24 can be used to accommodate ballast water, and the space between the bottom plate 24 and the bottom surface of the cargo hold 1 can be used to accommodate the ballast main pipe 25 and the cargo oil main pipe 26. The ballast main pipe 25 and the cargo oil main pipe 26 are centrally arranged together to facilitate subsequent maintenance; and the ballast main pipe 2 When the material is transported through the cargo oil main pipe 26 or the cargo oil main pipe 26, the material transport pipe is docked on the flange 41 on the side of the valve 3, and then the rotary rod 31 is rotated to open the valve 3. The rotary rod 31 is connected to the first gear shaft 54 ​​through the pulley group 53. The first differential gear 55 fixed at the lower end of the first gear shaft 54 ​​is meshed with the second differential gear 56 fixed at the upper end of the second gear shaft 57. The main bevel gear 58 at the lower end of the second gear shaft 57 is meshed with the auxiliary bevel gear 59 fixed at the end of the third gear shaft 510. The transmission gear 511 at the other end of the third gear shaft 510 is meshed with the external gear ring 514. The outer gear ring 514 is fixed on the outer surface of the movable ring 512, and the inner surface of the movable ring 512 is fixedly mounted with the inner gear ring 513 meshing with the linkage gear 43. The square rod 44 fixed on the side of the linkage gear 43 is slidably connected with the bolt 42, and the bolt 42 is threadedly connected with the fixing nut 45 fixed inside the flange 41. Therefore, after the rotating rod 31 rotates, the pulley group 53, the first gear shaft 54, the first differential gear 55, the second differential gear 56, the second gear shaft 57, the main bevel gear 58, the auxiliary bevel gear 59, the third gear shaft 510, the transmission gear 5 11. Under the transmission of the external gear ring 514, the movable ring 512, the internal gear ring 513 and other structures, the linkage gear 43 rotates synchronously, and under the action of the fixing nut 45, the bolt 42 will be screwed out from the inside of the flange 41 and screwed into the inside of the threaded hole on the feed pipe to fix the position of the plastic pipe to ensure that the subsequent oil or water delivery can be carried out stably. During the process, since the internal gear ring 513 can be meshed and connected with multiple linkage gears 43 at the same time, after the internal gear ring 513 rotates, it can drive multiple bolts 42 to be screwed out from the inside of the flange 41 and screwed into the inside of the feed pipe at the same time to ensure its stability.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Double hull oil tanker bulkhead structure, characterized by: The invention comprises a cargo hold body (1) and an insulating layer (2), wherein the insulating layer (2) comprises two planar bulkhead plates (21), a top plate (22), a reinforcing bracket (23), a bottom plate (24), a ballast main pipe (25) and a cargo oil main pipe (26), wherein the two planar bulkhead plates (21) are welded to the cargo hold body (1), the top plate (22) and the bottom plate (24) are welded to the planar bulkhead plates (21) to form an integral body, and the reinforcing bracket (23) is located on the top plate. (22) and the bottom plate (24), and the reinforcing brackets (23) are welded to the two plane bulkhead plates (21), the ballast main pipe (25) and the cargo oil main pipe (26) are located between the bottom plate (24) and the bottom surface of the inner cavity of the cargo tank body (1), and the ends of the ballast main pipe (25) and the cargo oil main pipe (26) are both provided with valves (3), the valves (3) are movably provided with a rotating rod (31), and the valves (3) are also provided with a connecting assembly (4); The connecting assembly (4) comprises a flange (41) fixedly connected to the valve (3), a linkage gear (43) being rotatably arranged inside the flange (41), a square rod (44) being fixedly installed on the side of the linkage gear (43), a bolt (42) being slidably connected to the square rod (44), a fixing nut (45) being threadedly connected to the bolt (42), the fixing nut (45) being also fixedly connected to the flange (41), a limit block (46) being fixedly installed at the end of the square rod (44), and a transmission assembly (5) being also arranged on the flange (41); The transmission assembly (5) comprises an L-shaped seat (51) fixedly connected to the flange (41), a protective ring (52) is fixedly installed on the side of the L-shaped seat (51), a first gear shaft (54), a second gear shaft (57) and a third gear shaft (510) are rotatably arranged inside the L-shaped seat (51), a first differential gear (55) is fixedly installed at the end of the first gear shaft (54), and a pulley group (53) is arranged on the first gear shaft (54), the first gear shaft (54) is transmission-connected to the rotating rod (31) through the pulley group (53), a second differential gear (56) and a main bevel gear (58) are fixedly installed at both ends of the second gear shaft (57), and the third gear shaft (510) is fixedly installed at the end of the first gear shaft (54). A secondary bevel gear (59) and a transmission gear (511) are fixedly mounted at both ends respectively. The transmission assembly (5) further comprises a bearing (515) arranged on the flange (41). The flange (41) is rotatably connected to a movable ring (512) via the bearing (515). An external gear ring (514) is fixedly mounted on the outer surface of the movable ring (512), and an internal gear ring (513) meshingly connected to the linkage gear (43) is fixedly mounted on the inner surface of the movable ring (512). The first differential gear (55) is meshingly connected to the second differential gear (56). The main bevel gear (58) is meshingly connected to the secondary bevel gear (59) for transmission. The transmission gear (511) is meshingly connected to the external gear ring (514).

2. The double hull oil tanker bulkhead structure according to claim 1, characterized in that: There are two valves (3) in total, and the two valves (3) are respectively located at the ends of the ballast main pipe (25) and the cargo oil main pipe (26) passing through the cargo tank body (1).

3. The double hull oil tanker bulkhead structure according to claim 1, characterized in that: The flange (41) is provided with an auxiliary hole for passing a bolt (42), and the diameter of the auxiliary hole is larger than the diameter of the bolt (42).

4. The double hull oil tanker bulkhead structure according to claim 1, characterized in that: The limit block (46) is located inside the bolt (42), and the limit block (46) is also slidably connected to the bolt (42).

5. The double hull oil tanker bulkhead structure according to claim 1, characterized in that: The shape of the limiting block (46) is consistent with the shape of the square rod (44), and the width of the limiting block (46) is greater than the width of the square rod (44).

6. The double hull oil tanker bulkhead structure according to claim 1, characterized in that: The external gear ring (514) is located in the inner cavity of the protective ring (52), and a notch for accommodating the external gear ring (514) is provided on the L-shaped seat (51).

7. The double hull oil tanker bulkhead structure according to claim 1, characterized in that: The size of the first differential gear (55) is larger than that of the second differential gear (56), and the first differential gear (55) is located above the main bevel gear (58).

8. The double hull oil tanker bulkhead structure according to claim 1, characterized in that: The bearing (515) comprises an inner ring layer, a central ball layer and an outer ring layer, wherein the inner ring layer is fixedly connected to the flange (41), and the outer ring layer is fixedly connected to the movable ring (512).

9. The double hull oil tanker bulkhead structure according to claim 8, characterized in that: The central ball layer is located between the inner ring layer and the outer ring layer, and the inner ring layer is rotatably connected with the outer ring layer through the central ball layer.

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