CN113682420B - Ship oil tank structure - Google Patents

Abstract

The invention provides a ship oil tank structure, comprising: the upper section is assembled and the lower section is assembled; the upper section assemblage comprises an oil tank, and the lower section assemblage comprises a deck and an isolated empty tank; the oil tank comprises an oil tank body with an opening at the lower end and an oil tank bottom plate connected to the lower part of the oil tank body, and one side of the oil tank bottom plate is arranged close to the top of the oil tank body; a reinforcing web plate and a reinforcing panel connected to the lower part of the reinforcing web plate are fixed on the lower surface of the oil tank bottom plate, and a corner is arranged between the reinforcing panel and the reinforcing web plate; the deck is provided with a deck opening, and the deck opening is positioned in a projection area from the oil tank bottom plate to the deck; the upper end opening of the isolated empty cabin is arranged, and the deck is connected between the lower end opening of the oil cabin body and the upper end opening of the isolated empty cabin; the isolation empty cabin also comprises a support toggle plate which is fixed on a side plate of the isolation empty cabin and extends along the height direction of the isolation empty cabin; the two ends of the reinforcing web plate are welded with the deck, and the upper ends of the supporting toggle plates are respectively welded with the deck and the reinforcing panel.

Description

Ship oil tank structure

Technical Field

The invention relates to the technical field of hull structures, in particular to a ship oil tank structure.

Background

Usually, small oil tanks such as a fuel oil daily tank, a fuel oil clarifying tank, a low-sulfur oil daily tank, and a low-sulfur oil clarifying tank are arranged on the second deck of the ship engine room, and the plurality of small oil tanks are used for storing corresponding oil products.

The bottom plate level of traditional little oil tank sets up, and the survivor such as impurity in the little oil tank can tile on whole bottom plate, when cleaning the survivor such as impurity of collecting in the little oil tank, need clean whole bottom plate, wastes time and energy. In order to solve the problems, the inclined-bottom type small oil tank is adopted by a ship, namely, most of bottom plates are raised to form an inclined-bottom type platform, a groove is formed in one side (the part which is not raised) of the bottom of the small oil tank, and residues such as impurities are deposited in the groove, so that the collection and cleaning of the residues such as the impurities in the small oil tank are convenient.

In order to prevent the small oil tank from being damaged and polluting other cabins, an isolation empty tank is usually arranged below the bottom of the small oil tank, namely an oil tank structure comprises an oil tank, a deck and an isolation empty tank, wherein the oil tank is connected to one side of the deck, and the isolation empty tank is connected to the other side of the deck; in order to ensure a certain structural strength, criss-cross floor reinforcements are usually provided on the lower surface of the floor (the surface of the floor facing the deck); correspondingly, criss-cross deck reinforcements are arranged on the upper surface of the deck (the surface of the deck facing the base plate), the criss-cross deck reinforcements form a plurality of small lattices, and holes are formed in the small lattices, so that the base plate reinforcements and the deck reinforcements can be welded.

The assembly method of the oil tank structure comprises the following steps: the deck and the isolated empty cabin below the deck are taken as one cabin section, the oil cabin above the deck is taken as the other cabin section, and the two cabin sections are assembled and welded respectively and then are closed and welded up and down; the upper cabin section and the lower cabin section are required to be welded together in the isolation cabin, the welding amount of the criss-cross bottom plate reinforcing piece and the deck reinforcing piece is large, the requirement on the alignment precision of the bottom plate reinforcing piece and the deck reinforcing piece is high, the precision is difficult to guarantee, the upper cabin section and the lower cabin section are often misaligned, and the correction is difficult; therefore, the oil tank structure is difficult to weld and low in efficiency.

Disclosure of Invention

The invention aims to provide a ship oil tank structure, which solves the technical problems of high welding difficulty and low efficiency of the oil tank structure in the prior art to a certain extent.

The invention provides a ship oil tank structure, comprising: the upper section is assembled and the lower section is assembled; the upper section assemblage comprises an oil tank, and the lower section assemblage comprises a deck and an isolated empty tank; the oil tank comprises an oil tank body with an opening at the lower end and an oil tank bottom plate connected to the lower part of the oil tank body, and one side of the oil tank bottom plate is arranged close to the top of the oil tank body; a reinforcing web plate and a reinforcing panel connected to the lower part of the reinforcing web plate are fixed on the lower surface of the oil tank bottom plate, and a corner is arranged between the reinforcing panel and the reinforcing web plate; a deck opening is formed in the deck and is positioned in a projection area from the oil tank bottom plate to the deck; the upper end opening of the isolation empty cabin is arranged, and the deck is connected between the lower end opening of the oil cabin body and the upper end opening of the isolation empty cabin; the isolation air chamber also comprises a support toggle plate which is fixed on a side plate of the isolation air chamber and extends along the height direction of the isolation air chamber; the two ends of the reinforcing web plate are welded with the deck, and the upper ends of the supporting brackets are respectively welded with the deck and the reinforcing panel.

The upper section assemblage and the lower section assemblage can be assembled respectively, then the upper section assemblage and the lower section assemblage are folded up and down, and the upper section assemblage and the lower section assemblage are connected and fixed through welding. In the process of welding the upper assembly and the lower assembly, constructors are required to enter the isolation empty cabin, two ends of the reinforcing web plate are connected with the deck, the upper end of the supporting toggle plate is welded with the reinforcing panel, and the supporting toggle plate is welded with the deck before the upper assembly and the lower assembly are welded. Wherein, the both ends of strengthening the web are equivalent to the welding between the point and the face with the welding of deck, support the welding between bracket and the strengthening web also equivalent to the welding between the point and the face, and the regional selectivity that can weld of face is big, easy welding, compare in the upper and lower line between indulge horizontal reinforcement among the correlation technique and the welding between the line, can avoid counterpointing from top to bottom to avoid the welding problem that the counterpoint is inaccurate to lead to, be favorable to improving welding quality. Therefore, the ship oil tank structure provided by the invention can reduce the difficulty of a welding machine between the upper section assembly and the lower section assembly, thereby improving the welding efficiency and the welding quality.

In addition, the connection of the isolated empty tank, the deck and the reinforcing panel can be realized through the supporting brackets in the ship oil tank structure, wherein the supporting brackets can support and reinforce the deck and the reinforcing panel, the deck can support and reinforce the reinforcing web, and the reinforcing web and the reinforcing panel are connected into a whole, so that the strength required by the ship oil tank can be ensured through the reinforcing web and the reinforcing panel. Under the condition of providing enough strength for the oil tanks with the same specification, the welding of the upper and lower longitudinal and transverse reinforcements in the related technology is intersected, and the welding amount can be reduced by the ship oil tank structure provided by the invention, so that the welding difficulty is further reduced, and the welding efficiency is further improved.

In addition, criss-cross reinforcements are not arranged on the deck in the ship oil tank structure, the structure is simple, the internal structure of the lower section assembly is simple, and construction is facilitated for constructors.

Further, in the transverse direction of the oil tank, the first side of the oil tank bottom plate is arranged close to the top of the oil tank body, and the second side of the oil tank bottom plate is arranged far away from the top of the oil tank body; the reinforcing web and the reinforcing panel both extend in the longitudinal direction of the cargo tank; the number of the reinforcing webs is multiple, the reinforcing webs are arranged along the transverse interval of the oil tank bottom plate, and the reinforcing panel is fixed on each reinforcing web.

Further, in the transverse direction of the oil tank, the side wall of the oil tank body close to the first side of the oil tank bottom plate is connected with the first side of the oil tank bottom plate; an oil tank bottom plate interval is arranged between the side wall of the oil tank body close to the second side of the oil tank bottom plate and the second side of the oil tank bottom plate; the oil tank also comprises a lifting plate extending along the longitudinal direction of the oil tank, one side of the lifting plate is connected with the second side of the oil tank bottom plate in the height direction of the lifting plate, and the other side of the lifting plate is connected with the deck; and in the length direction of the lifting plate, two ends of the lifting plate are connected with the side wall of the oil tank body.

Furthermore, a plurality of deck reinforcing ribs are fixed on the deck at intervals along the transverse direction of the deck, one of the deck reinforcing ribs is a continuous reinforcing rib, and the rest deck reinforcing ribs are basic reinforcing ribs; the continuous reinforcing ribs are positioned right below the lifting plate so as to support the lifting plate.

Furthermore, a reinforcing rib interval is formed between two adjacent deck reinforcing ribs; in the transverse direction of the deck, the width of the intervals of the reinforcing ribs is equal, and the width of the intervals of the oil tank bottom plates is twice of the intervals of the reinforcing ribs.

Further, a deck toggle plate is fixed on the deck reinforcing rib and connected between the deck and the isolated empty cabin.

Furthermore, the isolation empty chamber comprises four empty chamber side plates which are sequentially connected end to end and an empty chamber bottom plate which is fixed at the lower ends of the empty chamber side plates, wherein a first empty chamber side plate and a second empty chamber side plate are oppositely arranged in the longitudinal direction of the isolation empty chamber, a third empty chamber side plate and a fourth empty chamber side plate are oppositely arranged in the transverse direction of the isolation empty chamber, a plurality of supporting toggle plates are respectively arranged on the first empty chamber side plate and the second empty chamber side plate, and the isolation empty chamber further comprises connecting toggle plates which are fixed on the third empty chamber side plate and the fourth empty chamber side plate; a plurality of bottom plate reinforcing ribs which extend along the longitudinal direction of the empty cabin bottom plate are fixed on the empty cabin bottom plate, and the plurality of bottom plate reinforcing ribs are arranged along the transverse direction of the empty cabin bottom plate at intervals; the plurality of support toggle plates are connected with the plurality of bottom plate reinforcing ribs in a one-to-one correspondence manner.

Furthermore, the isolation cabin further comprises an expansion side plate, and the expansion side plate and the second cabin side plate are arranged at intervals in the longitudinal direction of the isolation cabin; two ends of the expansion side plate are respectively connected with the third empty cabin side plate and the fourth empty cabin side plate, the upper side of the expansion side plate is connected with the deck, and the lower side of the expansion side plate is connected with the empty cabin bottom plate; a channel is formed among the deck, the second empty cabin side plate, the expansion side plate and the empty cabin bottom plate, and a channel hole communicated with the channel is formed in the deck; and the second empty cabin side plate is provided with a side plate opening communicated with the channel.

Furthermore, in the longitudinal direction of the deck, a plurality of the basic reinforcing ribs are respectively arranged on the first side and the second side of the opening of the deck; a plurality of said support brackets on said first side panel including a first bulkhead bracket corresponding to a primary stiffener on a first side of said deck opening and a second bulkhead bracket corresponding to said continuous stiffener; the lower end of the first bulkhead toggle plate is connected with the bottom plate reinforcing rib, and the upper end of the first bulkhead toggle plate is respectively welded with the deck and the reinforcing panel; the continuous reinforcing ribs penetrate through the first empty cabin side plate, the lower ends of the second cabin wall toggle plates are connected with the bottom plate reinforcing ribs, and the upper ends of the second cabin wall toggle plates are connected with the continuous reinforcing ribs.

Further, the plurality of support brackets on the second hatch side panel include a first open-cell bulkhead bracket corresponding to the continuous stiffener and a second open-cell bulkhead bracket corresponding to a deck stiffener on a second side of the opening; the continuous reinforcing ribs and the bottom plate reinforcing ribs are arranged through the second empty cabin side plate; the lower end of the first perforated bulkhead toggle plate is connected with the bottom plate reinforcing rib, and the upper end of the first perforated bulkhead toggle plate is connected with the continuous reinforcing rib; the lower end of the second opening bulkhead bracket is connected with the bottom plate reinforcing rib, and the upper end of the second opening bulkhead bracket is respectively welded with the deck and the reinforcing panel.

Furthermore, the isolation air cabin also comprises a plurality of expansion toggle plates which are fixed on the inner walls of the expansion side plates at intervals along the transverse direction of the expansion side plates; the expansion brackets extend along the height direction of the expansion side plates, one expansion bracket is arranged corresponding to the continuous reinforcing ribs, and the rest expansion brackets are arranged corresponding to the deck reinforcing ribs on the second side of the opening; the deck reinforcing ribs penetrate through the expansion side plates; the lower end of the expansion toggle plate is connected with the bottom plate reinforcing rib, and the upper end of the expansion toggle plate is connected with the deck reinforcing rib.

Further, the connecting toggle plate on the third empty cabin side plate is a third cabin wall toggle plate, and one side of the third cabin wall toggle plate, which is far away from the third empty cabin side plate, is connected with the bottom plate reinforcing rib close to the third empty cabin side plate; and the connecting toggle plate on the fourth empty cabin side plate is a fourth cabin wall toggle plate, the lower end of the fourth cabin wall toggle plate is connected with the bottom plate reinforcing rib, and the upper end of the fourth cabin wall toggle plate is connected with the deck.

Further, the supporting toggle plate is arranged in a C shape; and/or the expansion toggle plate is arranged in a C shape; and/or the third cabin wall toggle plate is arranged in a C shape; and/or the fourth bulkhead toggle is arranged in an L shape.

Further, the reinforcing web and the reinforcing panel are arranged in a T shape; and/or the lower surface of the reinforcing panel is arranged flush with the upper surface of the deck.

Furthermore, an oil tank reinforcing rib is arranged on the inner wall of the oil tank body, and an oil tank toggle plate is arranged at the end part of the oil tank reinforcing rib in the length direction of the oil tank reinforcing rib;

and/or a bottom plate toggle plate is fixed on the lower surface of the oil tank bottom plate on one side of the oil tank bottom plate close to the top of the oil tank body, one end of the bottom plate toggle plate is connected with the reinforcing web plate, and the other end of the bottom plate toggle plate is connected with the side wall of the oil tank body.

It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a ship tank structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of the upper assembly of the cargo tank structure of the vessel shown in FIG. 1;

FIG. 3 is a schematic view of the assembly of the lower section of the oil tank structure of the vessel shown in FIG. 1;

FIG. 4 is a schematic view of the first cargo tank side panel of the upper assembly shown in FIG. 2;

FIG. 5 is a schematic structural view of a second cargo tank side panel of the upper assembly shown in FIG. 2;

FIG. 6 is a schematic structural view of a third cargo tank side panel of the upper assembly shown in FIG. 2;

FIG. 7 is a schematic structural view of a fourth tank side panel of the upper assembly shown in FIG. 2;

FIG. 8 is a schematic structural view of the oil galley bottom plate of the upper assembly shown in FIG. 2;

FIG. 9 is a schematic structural view of the lower assembled middle deck shown in FIG. 3;

FIG. 10 is an exploded view of the lower assembled insulated flight deck of FIG. 3;

FIG. 11 is a schematic view of the first side panel of the first empty compartment in the upper assembly shown in FIG. 10;

FIG. 12 is a schematic view of the second cavity side panel of the upper assembly shown in FIG. 10;

FIG. 13 is a schematic view of the third deck side panel of the upper assembly shown in FIG. 10;

FIG. 14 is a schematic structural view of a fourth cavity side panel of the upper assembly shown in FIG. 10;

FIG. 15 is a schematic view of the structure of the upper assembled bilge floor shown in FIG. 10;

FIG. 16 is a schematic view of the expanded side panel of the upper assembly shown in FIG. 10;

FIG. 17 is a schematic view of another perspective of the configuration of the cargo tank of the vessel shown in FIG. 1;

FIG. 18 is a cut-away view A-A of the marine oil tank structure shown in FIG. 17;

FIG. 19 is a cut-away view B-B of the marine tank structure shown in FIG. 17;

FIG. 20 is a cut-away view C-C of the marine oil tank structure shown in FIG. 17;

FIG. 21 is a cut-away view D-D of the marine oil tank structure shown in FIG. 17;

FIG. 22 is a cut-away view E-E of the marine oil tank structure shown in FIG. 17;

FIG. 23 is a cut-away view F-F of the marine oil tank structure shown in FIG. 17;

FIG. 24 is a sectional view at G-G of the marine oil tank structure shown in FIG. 17;

FIG. 25 is a sectional view taken at H-H of the marine oil tank structure shown in FIG. 17;

FIG. 26 is a top plan view at I-I of the marine oil tank structure shown in FIG. 19;

FIG. 27 is a top view at J-J of the marine tank structure shown in FIG. 19;

fig. 28 is a top view at K-K of the marine tank structure shown in fig. 19.

Icon: 11-an oil tank; 111-a first tank side panel; 112-a second tank side panel; 113-a third cargo tank side panel; 114-a fourth cargo tank side panel; 115-cargo tank floor; 116-tank roof; 117-oil tank reinforcing ribs; 118-cargo tank toggle; 119-a lifting plate; 120-a reinforcing web; 121-a reinforcement panel; 122-floor toggle plate; 21-deck; 211-deck opening; 212-continuous reinforcing ribs; 213-basic reinforcing ribs; 214-a channel hole; 215-deck toggle plate; 216-flat bottom plate; 31-isolating the empty cabin; 311-a first empty compartment side panel; 312-a second flight side panel; 313-a third empty compartment side panel; 314-a fourth cavity side panel; 315-empty compartment floor; 316-expanded side panels; 317-a first bulkhead toggle; 318-a second bulkhead toggle; 319-third bulkhead toggle; 320-a fourth bulkhead toggle; 321-a first apertured bulkhead toggle; 322-a second apertured bulkhead toggle; 323-a through hole; 324-watertight patch; 325-opening a hole on the side plate; 326-floor stiffener; 327-expanded toggle.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that "longitudinal" in the embodiment of the present invention may refer to a length direction of a ship, "transverse" may refer to a width direction of the ship, and "height direction" may refer to a height direction of the ship.

As shown in fig. 1 to 28, the present invention provides a ship oil tank 11 structure, which includes an upper assembly and a lower assembly; the upper section assembly comprises an oil tank 11, and the lower section assembly comprises a deck 21 and an isolated empty tank 31; the oil tank 11 comprises an oil tank 11 body with an opening at the lower end and an oil tank bottom plate 115 connected to the lower part of the oil tank 11 body, wherein one side of the oil tank bottom plate 115 is arranged close to the top of the oil tank 11 body (namely, the oil tank bottom plate 115 is arranged in a sloping plate manner, and one side of the oil tank bottom plate 115 is arranged close to the top of the oil tank 11 body compared with the other side of the oil tank bottom plate 115); a reinforcing web 120 and a reinforcing panel 121 connected to the lower part of the reinforcing web 120 are fixed on the lower surface of the oil tank bottom plate 115, and a corner is arranged between the reinforcing panel 121 and the reinforcing web 120; a deck opening hole 211 is formed in the deck 21, and the deck opening hole 211 is located in a projection area of the oil tank bottom plate 115 towards the deck 21 (namely, the area of the opening of the lower plate is smaller than the projection area of the oil tank bottom plate 115); the upper end opening of the isolation empty cabin 31 is arranged, and the deck 21 is connected between the lower end opening of the body of the oil cabin 11 and the upper end opening of the isolation empty cabin 31 (namely, the oil cabin 11 is positioned at the upper side of the deck 21, and the isolation empty cabin 31 is positioned at the lower side of the deck 21); the isolation chamber 31 further comprises a support toggle plate fixed on a side plate of the isolation chamber 31 and extending along the height direction of the isolation chamber 31; the reinforcing web 120 is welded at both ends to the deck 21 and at the upper ends to the support brackets to the deck 21 and the reinforcing panel 121, respectively.

In this embodiment, the upper assembly and the lower assembly may be assembled separately, and then the upper assembly and the lower assembly are folded up and down, and the upper assembly and the lower assembly are connected and fixed by welding. In the process of welding the upper assembly and the lower assembly, a constructor is required to enter the isolation empty cabin 31, two ends of the reinforcing web 120 are connected with the deck 21, the upper end of the supporting bracket is welded with the reinforcing panel 121, and the supporting bracket is welded with the deck 21 before the welding of the upper assembly and the lower assembly. Wherein, the welding of the both ends of strengthening web 120 and deck 21 is equivalent to the welding between the point and the face, supports the welding between bracket and the strengthening web 120 also and is equivalent to the welding between the point and the face, and the regional selectivity that can weld of face is big, easy welding, compare in the welding between the line that forms between the upper and lower horizontal reinforcement of indulging in the correlation technique, can avoid counterpointing from top to bottom to avoid the welding problem that the counterpoint is inaccurate to lead to, be favorable to improving welding quality. Therefore, the ship oil tank 11 structure provided by the embodiment can reduce the difficulty of the welding machine between the upper assembly and the lower assembly, thereby improving the welding efficiency and the welding quality.

In addition, in the structure of the ship oil tank 11 provided by the embodiment, the connection of the isolated empty tank 31, the deck 21 and the reinforcing panel 121 can be realized through the supporting brackets, wherein the supporting brackets can support and reinforce the deck 21 and the reinforcing panel 121, the deck 21 can support and reinforce the reinforcing web 120, and the reinforcing web 120 and the reinforcing panel 121 are connected into a whole, so that the reinforcing web 120 and the reinforcing panel 121 can ensure the strength required by the ship oil tank 11. Under the condition of providing enough strength for the oil tanks 11 with the same specification, the welding of the upper and lower longitudinal and transverse reinforcements in the related technology is intersected, and the structure of the ship oil tank 11 provided by the embodiment can reduce the welding amount, so that the welding difficulty is further reduced, and the welding efficiency is further improved.

In addition, avoid setting up vertically and horizontally staggered's reinforcement on the deck 21 among the boats and ships tank 11 structure that this embodiment provided, simple structure to make the inner structure simple of hypomere assemblage, make things convenient for the constructor to be under construction.

A corner is arranged between the reinforcing web 120 and the reinforcing panel 121, so that the reinforcing web 120 and the reinforcing panel 121 can be arranged in an L shape; optionally, the reinforcing web 120 and the reinforcing surface are arranged in a T shape, which makes the reinforcing surface plate 121 more stable and more uniformly stressed, specifically, the cross section of the reinforcing web 120 may be, but is not limited to, arranged in a quadrilateral shape, the reinforcing surface plate 121 may be, but is not limited to, arranged in a flat shape, and the reinforcing web 120 may be, but is not limited to, connected to the center of the large-plane side of the reinforcing surface plate 121.

The support toggle plate can be arranged in a quadrilateral or L shape, and optionally, the support toggle plate is arranged in a C shape, so that the connection is stable, and the weight is light.

The position and size of the deck opening 211 can be set according to specific requirements, for example, the vertical distance from the edge of the deck opening 211 adjacent to the lifting plate 119 is 100mm, and the vertical distance from the other edge of the deck opening 211 to the inner wall of the corresponding oil tank 11 body is 100 mm. The deck opening 211 is provided with a large opening to provide better accessibility to the interior compartment separating the empty compartments 31.

On the basis of the above embodiment, further, the reinforcing panel 121 is flush with the upper surface of the deck 21, so that the structure is regular, and welding is facilitated. In the longitudinal direction of the deck opening hole 211, the length of the reinforcement panel 121 is smaller than the length of the deck opening hole 211, so that a space is provided between both ends of the reinforcement panel 121 and the edge of the deck opening hole 211, facilitating assembly.

In addition to the above-mentioned embodiments, further, the reinforcing web 120 extends along a certain direction, and the reinforcing panel 121 may be provided in segments, for example, the reinforcing panel 121 includes two segments, one segment is provided at one end of the reinforcing web 120 to be welded to the corresponding supporting bracket, and the other segment is provided at the other end of the reinforcing web 120 to be welded to the corresponding supporting bracket, in the length direction of the reinforcing web 120.

Optionally, the reinforcing panel 121 is a continuous plate, and the reinforcing panel 121 extends along the extending direction of the reinforcing web 120, so that on one hand, the processing and the assembly are convenient, and on the other hand, the reinforcing and supporting effects of the reinforcing web 120 and the reinforcing panel 121 on the oil tank bottom plate 115 can be improved.

The extending direction of the reinforcing web 120 may intersect with the longitudinal direction of the tank floor 115, that is, the reinforcing web 120 is disposed obliquely with respect to the edge of the tank floor 115.

Alternatively, as shown in fig. 2 and 8, in the lateral direction of the oil tank 11, a first side of the oil tank bottom plate 115 is disposed near the top of the body of the oil tank 11, and a second side of the oil tank bottom plate 115 is disposed away from the top of the body of the oil tank 11; the reinforcing web 120 and the reinforcing panel 121 each extend in the longitudinal direction of the cargo tank 11; the number of reinforcing web 120 is a plurality of, and a plurality of reinforcing web 120 set up along the horizontal interval of oil tank bottom plate 115, all are fixed with reinforcing panel 121 on every reinforcing web 120, and the structure of oil tank bottom plate 115 of this kind of structure is regular, convenient processing.

As shown in fig. 2 and 22, on the basis of the above embodiment, further, in the lateral direction of the cargo tank 11, the side wall of the body of the cargo tank 11 near the first side of the cargo tank bottom plate 115 is connected to the first side of the cargo tank bottom plate 115; a tank bottom plate 115 interval is arranged between the side wall of the body of the oil tank 11 close to the second side of the oil tank bottom plate 115 and the second side of the oil tank bottom plate 115 (the part of the deck 21 corresponding to the interval of the oil tank bottom plate 115 is defined as a flat bottom plate 216); the cargo tank 11 further comprises a raised plate 119 extending in the longitudinal direction of the cargo tank 11, one side of the raised plate 119 being connected to the second side of the cargo tank floor 115 and the other side of the raised plate 119 being connected to the deck 21 (i.e. to the floor pan 216) in the height direction of the raised plate 119; in the length direction of the lifting plate 119, two ends of the lifting plate 119 are connected with the side wall of the body of the oil tank 11.

In this embodiment, the lifting plate 119 lifts the oil tank bottom plate 115 integrally, so that on one hand, the empty tank 31 can be isolated for expansion, and the construction space of constructors is further enlarged; on the other hand, a groove can be formed among the lifting plate 119, the side wall of the body of the oil tank 11 and the flat bottom plate 216, and sediment on the oil tank bottom plate 115 can slide into the groove, so that the sediment can be conveniently collected or cleaned.

As shown in fig. 9 and 22, in addition to the above embodiment, a plurality of deck 21 reinforcing ribs are fixed on the deck 21 at intervals along the transverse direction of the deck 21, one of the deck 21 reinforcing ribs is a continuous reinforcing rib 212, and the remaining deck 21 reinforcing ribs are basic reinforcing ribs 213; continuous reinforcement ribs 212 are located directly below raised plate 119 to support raised plate 119.

In this embodiment, under raising board 119, the lower surface of deck 21 sets up continuous strengthening rib 212, and the connection strengthening rib can support raising board 119 to the intensity of raising board 119 is improved, and then improves the intensity of tank bottom plate 115.

Wherein, the spaced width of the oil tank bottom plate 115 can be set as required, optionally, the spaced width of the oil tank bottom plate 115 is twice of the spacing of the reinforcing ribs, which can meet the connection requirement and avoid the excessive width and the waste of space. The width of the cargo tank floor 115 spacing is the width of the floor pan 216.

As shown in fig. 9, in addition to the above embodiment, a deck elbow plate 215 is further fixed to the reinforcing rib of the deck 21, and the deck elbow plate 215 is connected between the deck 21 and the isolation chamber 31. In this embodiment, the deck toggle plate 215 is provided to improve the connection strength between the deck 21 and the isolated empty compartment 31. The deck toggle 215 may optionally be located outside or inside the isolated empty compartment 31, and may be specifically located as desired.

The deck toggle plates 215 may be arranged in a quadrilateral shape or an L shape, etc.; optionally, the deck toggle plates 215 are arranged in a triangular shape, and the triangular deck toggle plates 215 are stable and reliable, so that materials can be reduced, and the weight can be reduced. The number of deck elbows 215 may be set according to particular needs.

On the basis of the above-described embodiment, the side walls of the isolation chamber 31 may be disposed flush with the side walls of the cargo tank 11.

As shown in fig. 3 and 10 to 16, based on the above embodiment, further, the isolation capsule 31 includes four capsule side plates connected end to end in sequence and a capsule bottom plate 315 fixed at the lower end of the capsule side plate, wherein the first capsule side plate 311 and the second capsule side plate 312 are oppositely arranged in the longitudinal direction of the isolation capsule 31, the third capsule side plate 313 and the fourth capsule side plate 314 are oppositely arranged in the transverse direction of the isolation capsule 31, a plurality of support toggle plates are respectively arranged on the first capsule side plate 311 and the second capsule side plate 312, and the isolation capsule 31 further includes connecting toggle plates fixed on the third capsule side plate 313 and the fourth capsule side plate 314; a plurality of bottom plate reinforcing ribs 326 which extend along the longitudinal direction of the empty compartment bottom plate 315 are fixed on the empty compartment bottom plate 315, and the plurality of bottom plate reinforcing ribs 326 are arranged along the transverse direction of the empty compartment bottom plate 315 at intervals; the plurality of support toggle plates are correspondingly connected with the plurality of bottom plate reinforcing ribs one by one.

In this embodiment, the bottom plate reinforcing ribs 326 are arranged on the empty tank bottom plate 315, the lower ends of the supporting toggle plates are connected with the empty tank reinforcing ribs, and then the bottom plate reinforcing ribs 326 can support the supporting toggle plates, so that the stability of the supporting toggle plates is better, the strength is better, the deck 21 and the reinforcing panel 121 can be further supported, and the strength of the oil tank bottom plate 115 is further improved.

The bottom plate stiffener 326 may be angle steel or flat-bulb steel.

As shown in fig. 3 and 16, based on the above embodiment, further, the isolation chamber 31 further includes an expanded side plate 316, and the expanded side plate 316 is spaced from the second chamber side plate 312 in the longitudinal direction of the isolation chamber 31; two ends of the expansion side plate 316 are respectively connected with the third empty cabin side plate 313 and the fourth empty cabin side plate 314, the upper side of the expansion side plate 316 is connected with the deck 21, and the lower side of the expansion side plate 316 is connected with the empty cabin bottom plate 315; a channel is formed among the deck 21, the second empty cabin side plate 312, the expansion side plate 316 and the empty cabin bottom plate 315, and a channel hole 214 communicated with the channel is formed in the deck 21; the second cavity side plate 312 is provided with a side plate opening 325 in communication with the passageway.

In this embodiment, personnel can get into the passageway through the access hole 214 on deck 21, again by the passageway through curb plate trompil 325 can get into to keep apart work such as overhaul in the empty cabin 31, set up extension curb plate 316 and can realize making things convenient for personnel to overhaul work such as the inside of boats and ships oil tank 11 structure.

Wherein, the bottom plate adds the strengthening rib and separates empty cabin bottom plate 315 to can be a plurality of subs with the inner deck partition that keeps apart empty cabin 31, a plurality of brackets and a plurality of bottom plate strengthening rib 326 one-to-one set up, then can set up curb plate trompil 325 in every bracket department that supports, also be a plurality of curb plate trompils 325 and a plurality of subs one-to-one intercommunication, then personnel can get into corresponding subs through corresponding curb plate trompil 325 by the passageway, make things convenient for personnel to be under construction.

The extension side plate 316 may be provided on the outer side of the second side plate, or the extension side plate 316 may be provided on the outer side of the other side plate, and may be provided as needed.

The deck 21 will typically extend outside of the isolation chamber 31 and there will be interference in the assembly between the deck 21 and the isolation chamber 31.

Specifically, as shown in fig. 3, 10 and 11, in the longitudinal direction of the deck 21, the first side and the second side of the deck opening hole 211 are respectively provided with a plurality of foundation beads 213; a plurality of support brackets on the first tank side panel 311, including a first bulkhead bracket 317 corresponding to the foundation stiffener 213 located on the first side of the deck opening 211 and a second bulkhead bracket 318 corresponding to the continuous stiffener 212; the lower end of the first bulkhead toggle plate 317 is connected with the bottom plate reinforcing rib 326, and the upper end of the first bulkhead toggle plate 317 is respectively welded with the deck 21 and the reinforcing panel 121; a continuous stiffener 212 is provided through the first tank side panel 311, the lower end of the second tank wall toggle 318 is connected to the bottom plate stiffener 326, and the upper end of the second tank wall toggle 318 is connected to the continuous stiffener 212.

In this case, a through hole 323 may be provided in the first hatch side plate 311 above the second bulkhead toggle 318 so that the continuous reinforcing rib 212 passes through, and then the through hole 323 may be blocked by a watertight patch 324.

As shown in fig. 3, 10 and 12, the plurality of support brackets on the second flight side 312 include a first open bulkhead bracket 321 corresponding to the continuous stiffener 212 and a second open bulkhead bracket 322 corresponding to the stiffener for the deck 21 on the second side of the opening; the continuous reinforcing rib 212 and the bottom plate reinforcing rib 326 are arranged to penetrate through the second empty compartment side plate 312; the lower end of the first open-cell bulkhead elbow 321 is connected to the floor stiffener 326, and the upper end of the first open-cell bulkhead elbow 321 is connected to the continuous stiffener 212; the lower end of the second open-cell bulkhead bracket 322 is connected to the floor stiffener 326 and the upper end of the second open-cell bulkhead bracket 322 is welded to the deck 21 and the reinforcement panel 121, respectively.

Wherein the first open-cell bulkhead toggle 321 can be the same size and shape as the second bulkhead toggle 318 and symmetrically disposed about the floor stiffener 326; the second open-cell bulkhead bracket 322 may be the same size and shape as the first bulkhead bracket 317 and may be symmetrically positioned about the floor stiffener 326; the structure ensures that the isolated empty chamber 31 has regular structure, convenient processing and even stress.

Similarly, through holes 323 may be provided in the second capsule side plate 312 at both the upper and lower ends of the first open capsule wall toggle 321, and through holes 323 may be provided at the lower end of the second open capsule wall toggle 322, the through holes 323 at the upper end allowing the continuous stiffener 212 to pass therethrough, and the through holes 323 at the lower end allowing the bottom stiffener 326 to pass therethrough; a water-tight patch plate 324 may be provided at the penetration hole 323 to seal.

As shown in fig. 3, 10 and 16, the isolation compartment 31 further includes a plurality of expanded toggle plates 327 secured to the inner walls of the expanded side panels 316 at spaced intervals along the lateral direction of the expanded side panels 316; expanded brackets 327 extending in the height direction of the expanded side plates 316, wherein one expanded bracket 327 is provided corresponding to the continuous reinforcement rib 212, and the remaining expanded brackets 327 are provided corresponding to the reinforcement rib of the deck 21 located on the second side of the opening; the reinforcing ribs of the deck 21 penetrate through the extension side plates 316; the lower end of the extended toggle 327 is connected to the base plate stiffener 326 and the upper end of the extended toggle 327 is connected to the deck 21 stiffener. In this case, a through hole 323 may be formed in the extension side plate 316 to allow the continuous reinforcing rib 212 to pass therethrough, and after the assembly is completed, a watertight supplementary plate 324 is used to seal the assembly.

First bulkhead toggle 317, second bulkhead toggle 318, first open bulkhead toggle 321, second open bulkhead toggle 322, and extension toggle 327 may each be in a quadrilateral or L-shaped configuration, and optionally may each be in a C-shaped configuration, and the C-shaped toggle may be stably connected, stably supported, and lightweight.

As shown in fig. 3, 10, 13 and 14, based on the above embodiment, there is no further one, the connecting toggle plate on the third air compartment side plate 313 is the third compartment wall toggle plate 319 (optionally, the third compartment wall toggle plate 319 is arranged in an inverted C shape), and the side of the third compartment wall toggle plate 319 far away from the third air compartment side plate 313 is connected with the bottom plate reinforcing rib 326 close to the third air compartment side plate 313, so that the strength of the third air compartment side plate 313 can be improved, and the strength of the isolation air compartment 31 can be improved; the connecting toggle plate on the fourth empty tank side plate 314 is a fourth bulkhead toggle plate 320 (optionally, the fourth bulkhead toggle plate 320 is arranged in an L shape), the lower end of the fourth bulkhead toggle plate 320 is connected with the bottom plate reinforcing rib 326, and the upper end of the fourth bulkhead toggle plate 320 is connected with the deck 21, so that the strength of the fourth empty tank side plate 314 can be improved, and the strength of the deck 21 can be further improved, thereby improving the strength of the oil tank bottom plate 115.

As shown in fig. 2 and 3 to 8, in addition to the above-described embodiments, further, an oil tank reinforcing rib 117 is provided on the inner wall of the body of the oil tank 11, and an oil tank toggle plate 118 is provided at an end portion of the oil tank reinforcing rib 117 in the longitudinal direction of the oil tank reinforcing rib 117. In this embodiment, the body of the oil tank 11 may include four oil tank 11 side plates connected end to end in sequence and an oil tank top plate 116 disposed at the top of the oil tank 11 side plates, wherein the first oil tank side plate 111 and the second oil tank side plate 112 are disposed opposite to each other in the transverse direction of the oil tank 11, and the third oil tank side plate 113 and the fourth oil tank side plate 114 are disposed opposite to each other in the longitudinal direction of the oil tank 11 (the first side of the oil tank bottom plate 115 may be connected to the first oil tank side plate 111, and the second side of the oil tank bottom plate 115 may be disposed at an interval from the second oil tank side plate 112.

The inner walls of the four side plates of the cargo tank 11 may be provided with cargo tank reinforcing ribs 117 extending in the height direction of the cargo tank 11, the ends of the cargo tank reinforcing ribs 117 may be provided with cargo tank toggle plates 118 (the cargo tank toggle plates 118 may be quadrilateral, L-shaped, or the like, and the optional cargo tank toggle plates 118 may be triangular), and the cargo tank toggle plates 118 may be connected to other components, thereby improving the connection strength between the structure provided with the cargo tank toggle plates 118 and other structures.

Tank stiffeners 117 extending in the longitudinal direction may be provided on the inner wall of the tank deck 116, although toggle plates may be provided on the inner wall of the tank deck 116 for increased strength.

As shown in fig. 2 and 4 to 9, in addition to the above embodiment, a bottom plate toggle plate 122 is further fixed to a lower surface of the oil tank bottom plate 115 on a side of the oil tank bottom plate 115 close to the top of the body of the oil tank 11, one end of the bottom plate toggle plate 122 is connected to the reinforcing web 120, and the other end of the bottom plate toggle plate 122 is connected to the side wall of the body of the oil tank 11. The bottom plate toggle plate 122 can improve the strength of the oil tank bottom plate 115, the bottom plate toggle plate 122 can be arranged in a quadrilateral or L shape, and optionally, the bottom plate toggle plate 122 is in an inverted C shape, so that the connection is stable, and the weight is light.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention. In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.

Claims (14)

1. A ship tank structure, comprising: the upper section is assembled and the lower section is assembled; the upper section assemblage comprises an oil tank, and the lower section assemblage comprises a deck and an isolated empty tank;

the oil tank comprises an oil tank body with an opening at the lower end and an oil tank bottom plate connected to the lower part of the oil tank body, and one side of the oil tank bottom plate is arranged close to the top of the oil tank body; a reinforcing web plate and a reinforcing panel connected to the lower part of the reinforcing web plate are fixed on the lower surface of the oil tank bottom plate, and a corner is arranged between the reinforcing panel and the reinforcing web plate;

a deck opening is formed in the deck and is positioned in a projection area from the oil tank bottom plate to the deck; the upper end opening of the isolation empty cabin is arranged, and the deck is connected between the lower end opening of the oil cabin body and the upper end opening of the isolation empty cabin; the isolation air chamber also comprises a support toggle plate which is fixed on a side plate of the isolation air chamber and extends along the height direction of the isolation air chamber; two ends of the reinforcing web plate are welded with the deck, and the upper ends of the supporting brackets are respectively welded with the deck and the reinforcing panel; in the transverse direction of the oil tank, the first side of the oil tank bottom plate is arranged close to the top of the oil tank body, and the second side of the oil tank bottom plate is arranged far away from the top of the oil tank body; the reinforcing web and the reinforcing panel both extend in the longitudinal direction of the cargo tank; the number of the reinforcing webs is multiple, the reinforcing webs are arranged along the transverse interval of the oil tank bottom plate, and the reinforcing panels are fixed on each reinforcing web.

2. The marine oil tank structure according to claim 1, wherein a side wall of the oil tank body close to the first side of the oil tank bottom plate is connected to the first side of the oil tank bottom plate in a lateral direction of the oil tank; an oil tank bottom plate interval is arranged between the side wall of the oil tank body close to the second side of the oil tank bottom plate and the second side of the oil tank bottom plate;

the oil tank also comprises a lifting plate extending along the longitudinal direction of the oil tank, one side of the lifting plate is connected with the second side of the oil tank bottom plate in the height direction of the lifting plate, and the other side of the lifting plate is connected with the deck; and in the length direction of the lifting plate, two ends of the lifting plate are connected with the side wall of the oil tank body.

3. The ship oil tank structure according to claim 2, wherein a plurality of deck reinforcing ribs are fixed on the deck at intervals in the transverse direction of the deck, one of the deck reinforcing ribs is a continuous reinforcing rib, and the rest of the deck reinforcing ribs are basic reinforcing ribs; the continuous reinforcing ribs are positioned right below the lifting plate so as to support the lifting plate.

4. The ship cargo tank structure of claim 3, wherein a rib space is formed between two adjacent deck ribs; in the transverse direction of the deck, the width of the intervals of the reinforcing ribs is equal, and the width of the intervals of the oil tank bottom plates is twice of the intervals of the reinforcing ribs.

5. The vessel tank structure according to claim 3, wherein a deck bracket is fixed to the deck reinforcement rib, and the deck bracket is connected between the deck and the isolated empty tank.

6. The ship cargo tank structure of claim 3, wherein the isolated cargo tank comprises four cargo tank side plates connected end to end in sequence and a cargo tank bottom plate fixed to lower ends of the cargo tank side plates, wherein a first cargo tank side plate and a second cargo tank side plate are oppositely arranged in a longitudinal direction of the isolated cargo tank, a third cargo tank side plate and a fourth cargo tank side plate are oppositely arranged in a transverse direction of the isolated cargo tank, a plurality of support brackets are arranged on each of the first cargo tank side plate and the second cargo tank side plate, and the isolated cargo tank further comprises connecting brackets fixed on the third cargo tank side plate and the fourth cargo tank side plate;

a plurality of bottom plate reinforcing ribs which extend along the longitudinal direction of the empty cabin bottom plate are fixed on the empty cabin bottom plate, and the plurality of bottom plate reinforcing ribs are arranged along the transverse direction of the empty cabin bottom plate at intervals; the plurality of support toggle plates are connected with the plurality of bottom plate reinforcing ribs in a one-to-one correspondence manner.

7. The ship cargo tank structure of claim 6, wherein the isolation air compartment further comprises an expansion side plate, the expansion side plate being disposed at a distance from the second air compartment side plate in a longitudinal direction of the isolation air compartment; two ends of the expansion side plate are respectively connected with the third empty cabin side plate and the fourth empty cabin side plate, the upper side of the expansion side plate is connected with the deck, and the lower side of the expansion side plate is connected with the empty cabin bottom plate; a channel is formed among the deck, the second empty cabin side plate, the expansion side plate and the empty cabin bottom plate, and a channel hole communicated with the channel is formed in the deck; and the second empty cabin side plate is provided with a side plate opening communicated with the channel.

8. The ship cargo tank structure of claim 7, wherein a plurality of the base reinforcing ribs are provided on the first side and the second side of the deck opening, respectively, in the longitudinal direction of the deck; a plurality of said support brackets on said first side panel including a first bulkhead bracket corresponding to a primary stiffener on a first side of said deck opening and a second bulkhead bracket corresponding to said continuous stiffener; the lower end of the first bulkhead bracket is connected with the bottom plate reinforcing rib, and the upper end of the first bulkhead bracket is respectively welded with the deck and the reinforcing panel; the continuous reinforcing ribs penetrate through the first empty cabin side plate, the lower ends of the second cabin wall toggle plates are connected with the bottom plate reinforcing ribs, and the upper ends of the second cabin wall toggle plates are connected with the continuous reinforcing ribs.

9. The marine oil tank structure of claim 8, wherein the plurality of support brackets on the second empty tank side panel include a first open bulkhead bracket corresponding to the continuous stiffener and a second open bulkhead bracket corresponding to a deck stiffener on a second side of the opening; the continuous reinforcing ribs and the bottom plate reinforcing ribs penetrate through the second empty cabin side plate; the lower end of the first perforated bulkhead toggle plate is connected with the bottom plate reinforcing rib, and the upper end of the first perforated bulkhead toggle plate is connected with the continuous reinforcing rib; the lower end of the second perforated bulkhead bracket is connected with the bottom plate reinforcing rib, and the upper end of the second perforated bulkhead bracket is respectively welded with the deck and the reinforcing panel.

10. The marine oil tank structure of claim 7, wherein said insulated empty tank further comprises a plurality of expanded toggle plates fixed to inner walls of said expanded side plates at intervals in a lateral direction of said expanded side plates; the expansion brackets extend along the height direction of the expansion side plates, one expansion bracket is arranged corresponding to the continuous reinforcing ribs, and the rest expansion brackets are arranged corresponding to the deck reinforcing ribs on the second side of the opening; the deck reinforcing ribs penetrate through the expansion side plates; the lower end of the expansion toggle plate is connected with the bottom plate reinforcing rib, and the upper end of the expansion toggle plate is connected with the deck reinforcing rib.

11. The ship cargo tank structure of claim 10, wherein the connecting bracket on the third empty tank side plate is a third tank wall bracket, and the side of the third tank wall bracket remote from the third empty tank side plate is connected to the bottom plate stiffener adjacent to the third empty tank side plate;

and the connecting toggle plate on the fourth empty cabin side plate is a fourth cabin wall toggle plate, the lower end of the fourth cabin wall toggle plate is connected with the bottom plate reinforcing rib, and the upper end of the fourth cabin wall toggle plate is connected with the deck.

12. The marine tank structure of claim 11, wherein the support toggle plate is C-shaped; and/or the expansion toggle plate is arranged in a C shape; and/or the third cabin wall toggle plate is arranged in a C shape; and/or the fourth bulkhead toggle is arranged in an L shape.

13. The marine oil tank structure according to any one of claims 1 to 12, wherein the reinforcing web and the reinforcing panel are provided in a T-shape; and/or the lower surface of the reinforcing panel is arranged flush with the upper surface of the deck.

14. The ship oil tank structure according to any one of claims 1 to 12, wherein an oil tank reinforcing rib is provided on an inner wall of the oil tank body, and an oil tank toggle plate is provided at an end of the oil tank reinforcing rib in a length direction of the oil tank reinforcing rib;

and/or a bottom plate toggle plate is fixed on the lower surface of the oil tank bottom plate on one side of the oil tank bottom plate close to the top of the oil tank body, one end of the bottom plate toggle plate is connected with the reinforcing web plate, and the other end of the bottom plate toggle plate is connected with the side wall of the oil tank body.

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