阅读说明：本技术 一种可拆卸式船舶甲板液货舱及其安装方法 (Detachable ship deck cargo tank and installation method thereof ) 是由 孙恒梅 吴道娟 翁玲玲 于 2021-06-25 设计创作，主要内容包括：本发明公开了一种可拆卸式船舶甲板液货舱及其安装方法,安装方法包括以下步骤：步骤一、分别制作前安装基座、后安装基座及甲板液货舱；步骤二、在主甲板暴露区域规定的位置焊接前安装基座及后安装基座；步骤三、在甲板液货舱靠近艏部、靠近艉部的位置分别焊接前底座、后底座；步骤四、将甲板液货舱水平放置于前安装基座、后安装基座上,前底座与前安装基座接触,后底座与后安装基座接触；步骤五、在后底座与后安装基座接触的位置焊接限位装置；步骤六、锁紧安装螺栓。本发明制作和安装方便,在不改变原船体结构的情况下,能够将甲板液货舱安装在液货船主甲板规定的位置,不占用货舱空间,同时起到缩短船舶入码头或者入坞时间的效果。(The invention discloses a detachable ship deck cargo tank and an installation method thereof, wherein the installation method comprises the following steps: respectively manufacturing a front mounting base, a rear mounting base and a deck cargo tank; welding a front mounting base and a rear mounting base at a specified position of the main deck exposure area; welding a front base and a rear base at positions of the deck cargo tank close to the bow and the stern respectively; horizontally placing the deck cargo tank on a front mounting base and a rear mounting base, wherein the front base is in contact with the front mounting base, and the rear base is in contact with the rear mounting base; welding a limiting device at the contact position of the rear base and the rear mounting base; and step six, locking the mounting bolt. The invention has convenient manufacture and installation, can install the deck cargo tank at the specified position of the main deck of the cargo tank without changing the structure of the original ship body, does not occupy the space of the cargo tank, and simultaneously has the effect of shortening the time of docking or docking the ship.)

1. A detachable ship deck cargo tank is characterized by comprising a deck cargo tank, a front mounting base and a rear mounting base, wherein the front mounting base and the rear mounting base are welded on a deck respectively;

front base mounting eye plates are arranged on two sides of the front mounting base, rear base mounting eye plates are arranged on two sides of the rear mounting base, front cargo compartment mounting eye plates are arranged on two sides of the bow of the deck cargo compartment, rear cargo compartment mounting eye plates are arranged on two sides of the stern of the deck cargo compartment, the front cargo compartment mounting eye plates are matched with the front base mounting eye plates and fixed through connecting bolts, and the rear cargo compartment mounting eye plates are matched with the rear base mounting eye plates and fixed through connecting bolts;

the eyelet on the front base mounting eyelet plate is a long waist hole, the length direction of the long waist hole is parallel to the bow-stern direction of the deck liquid cargo tank, the rear base is connected with a limiting device, the limiting device comprises a front limiting structure and a rear limiting structure, and the front limiting structure and the rear limiting structure are respectively clamped on the front side and the rear side of the rear mounting base.

2. The removable ship deck cargo tank as defined in claim 1, wherein the front mounting base and the rear mounting base have the same structure and comprise a base main body, the upper end of the base main body is downwardly provided with a concave mounting groove, the concave mounting groove has the same structure as the lower part of the deck cargo tank, the front side, the rear side, the left side and the right side of the base main body are respectively welded and connected with the members on the deck, and the distance between the bottom of the concave mounting groove and the deck is 800-1200 mm.

3. The detachable ship deck cargo tank according to claim 2, wherein the upper surface of the concave mounting groove is alternately provided with limiting blocks at two sides, and an anti-friction gasket is arranged between the limiting blocks at two sides.

4. A removable vessel deck cargo tank as defined in claim 3 wherein anti-friction gaskets are provided between said front restraint and said rear mounting base and between said rear restraint and said rear mounting base.

5. A removable vessel deck cargo tank according to claim 3 wherein said deck cargo tank is octagonal in transverse cross-section and the distance between said deck cargo tank and said anti-friction pads is 5 mm.

6. The removable ship deck cargo tank of claim 4, wherein the anti-friction gasket is made of resin, and the thickness of the anti-friction gasket is 20-30 mm.

7. A removable vessel deck cargo tank according to claim 4 wherein the depth of the concave mounting channel is one half the height of the deck cargo tank.

8. The removable vessel deck cargo tank of claim 1 wherein the distance between the front base mounting eye plate and the front cargo tank mounting eye plate and the distance between the rear base mounting eye plate and the rear cargo tank mounting eye plate are 200-300 mm.

9. The detachable ship deck cargo tank of claim 1, wherein the limiting device comprises a limiting panel, a limiting web and an anti-tilting bracket, the limiting panel is attached to the rear base, the part of the limiting panel located on the outer side of the anti-tilting bracket is welded to the rear base, the limiting web is parallel to the rear mounting base, and the anti-tilting bracket is welded to the rear base, the limiting panel and the limiting web.

10. A method for installing a detachable ship deck cargo tank is characterized by comprising the following steps:

respectively manufacturing a front mounting base, a rear mounting base and a deck cargo tank;

welding a front mounting base and a rear mounting base at a specified position of the main deck exposure area;

welding a front base and a rear base at positions of the deck cargo tank close to the bow and the stern respectively;

horizontally placing the deck cargo tank on a front mounting base and a rear mounting base, wherein the front base is in contact with the front mounting base, and the rear base is in contact with the rear mounting base;

welding a limiting device at the contact position of the rear base and the rear mounting base;

and step six, locking the mounting bolt.

Technical Field

The invention belongs to the technical field of ship structure design, and particularly relates to a detachable ship deck cargo tank and an installation method thereof.

Background

Chemical cargo tanks are to cargo ships for shipping liquids, especially separately shipping toxic, flammable, and highly corrosive liquid cargo. Therefore, one of the important structural features of the chemical cargo tank is that the cargo ship area below the main deck is separated into multiple watertight cargo tanks, and each cargo tank is provided with a special cargo pump and piping system to meet the requirement of being capable of shipping different cargo tanks each time. The liquid cargo varieties which can be transported by modern chemical liquid cargo ships are increasingly diversified, the properties of the liquid cargo varieties are different, so that the chemical liquid cargo ships need to have greater flexibility and better operability, the liquid cargo with different properties can be transported in small batches and in multiple varieties at each time, and the chemical liquid cargo ships are also required to have more liquid cargo tanks.

For a newly manufactured chemical cargo tanker, in order to increase the number of cargo tanks under a main deck as much as possible, a conventional method is to increase watertight compartment compartments and isolate the cargo tanks into a plurality of independent watertight compartments, so that the empty weight and the construction cost of the new chemical cargo tanker are correspondingly increased, and the operation performance of the chemical cargo tanker is improved disadvantageously. Especially for chemical cargo tanker needing to be refitted, if a plurality of cargo tanks are added, the original main structure of the hull needs to be changed according to the existing mode of adding the watertight partition bulkhead below the main deck, and meanwhile, the original cargo oil pump and the original pipeline need to be modified, so that the refitting cost is huge, and the improvement on the operation performance of the chemical cargo tanker is not facilitated.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the method for installing the detachable ship deck cargo tank, which does not occupy the cargo tank space of a chemical cargo tanker, does not damage the main structure of the original ship body, and can be longitudinally and horizontally placed in the exposed area above the main deck.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a detachable ship deck cargo tank, which comprises a deck cargo tank, a front mounting base and a rear mounting base, wherein the front mounting base and the rear mounting base are respectively welded on a deck;

front base mounting eye plates are arranged on two sides of the front mounting base, rear base mounting eye plates are arranged on two sides of the rear mounting base, front cargo compartment mounting eye plates are arranged on two sides of the bow of the deck cargo compartment, rear cargo compartment mounting eye plates are arranged on two sides of the stern of the deck cargo compartment, the front cargo compartment mounting eye plates are matched with the front base mounting eye plates and fixed through connecting bolts, and the rear cargo compartment mounting eye plates are matched with the rear base mounting eye plates and fixed through connecting bolts;

the holes in the eye plates for mounting the front base are long waist holes, the length direction of the long waist holes is parallel to the fore-aft direction of the deck cargo tank, the length of the short edge of each long waist hole is 10 mm larger than the diameter of each connecting bolt, the rear base is connected with a limiting device, each limiting device comprises a front limiting structure and a rear limiting structure, and the front limiting structure and the rear limiting structure are respectively clamped on the front side and the rear side of the rear mounting base; the front base is elastically connected with the front mounting base, and the rear base is rigidly connected with the rear mounting base, so that the deck cargo tank can be reasonably inclined.

The deck liquid cargo tank is fixed at the specified position of the exposed area of the main deck through the front mounting base, the rear mounting base, the limiting device and the connecting bolt, so that the space of the cargo tank is not occupied, the main structure of the original ship body is not damaged, the construction or modification cost of the liquid cargo ship is greatly reduced, and the operability and flexibility of the chemical liquid cargo ship are improved.

As a preferable technical scheme, the front mounting base and the rear mounting base have the same structure, and comprise a base main body, wherein the upper end of the base main body is provided with a concave mounting groove downwards, the concave mounting groove has the same structure as the lower part of the deck liquid cargo tank, the front side, the rear side, the left side and the right side of the base main body are respectively welded and connected with a member on the deck, and the distance between the bottom of the concave mounting groove and the deck is 800-1200 mm. When the deck cargo tank is placed behind the front mounting base and the rear mounting base, personnel can conveniently operate, pass and overhaul below the deck cargo tank.

As an optimized technical scheme, limiting blocks are alternately arranged on the two sides of the upper surface of the concave mounting groove, and anti-friction gaskets are arranged between the limiting blocks on the two sides.

As a preferable technical scheme, anti-friction gaskets are arranged between the front limiting structure and the rear mounting base and between the rear limiting structure and the rear mounting base.

According to the preferable technical scheme, the transverse section of the deck cargo tank is octagonal, the distance between the deck cargo tank and the anti-friction gaskets is 5mm, and the deck cargo tank can be allowed to roll reasonably and expand and deform under heat reasonably.

As a preferred technical scheme, the anti-friction gasket is made of resin, and the thickness of the anti-friction gasket is 20-30 mm.

Preferably, the depth of the concave installation groove is half of the height of the deck cargo tank. The geometric shape of the concave mounting groove is the same as the transverse section shape of the deck liquid cargo tank, so that the deck liquid cargo tank can be effectively placed to be laterally turned or laterally displaced when placed in the front mounting base and the rear mounting base.

As a preferable technical solution, the distance between the front base mounting eye plate and the front cargo compartment mounting eye plate and the distance between the rear base mounting eye plate and the rear cargo compartment mounting eye plate are 200-300 mm. The connecting bolts are longer screws, and the elastic deformation of the longer screws can compensate for the longitudinal or lateral reasonable position of part of the deck liquid cargo tank, so that the shearing force applied to the connecting bolts is reduced, and the deck liquid cargo tank can be further ensured to reasonably pitch and roll.

As a preferred technical scheme, the limiting device comprises a limiting panel, a limiting web and an anti-tilting bracket, the limiting panel is attached to the rear base, the part of the limiting panel, which is located on the outer side of the anti-tilting bracket, is welded to the rear base, the limiting web is parallel to the rear mounting base, and the anti-tilting bracket is welded to the rear base, the limiting panel and the limiting web.

As a preferred technical scheme, the eyelets on the rear base mounting eyelet plate are circular bolt holes matched with the connecting bolts.

In a second aspect of the invention, an installation method of a detachable ship deck cargo tank is provided, which comprises the following steps:

respectively manufacturing a front mounting base, a rear mounting base and a deck cargo tank;

welding a front mounting base and a rear mounting base at specified positions of the main deck exposure area, and fixing anti-friction gaskets on the front mounting base and the rear mounting base;

welding a front base and a rear base at positions of the deck cargo tank close to the bow and the stern respectively;

horizontally placing the deck cargo tank on a front mounting base and a rear mounting base, wherein the front base is in contact with the front mounting base, and the rear base is in contact with the rear mounting base;

welding a limiting device at the contact position of the rear base and the rear mounting base;

and step six, locking the mounting bolt.

In a third aspect of the invention, a method for disassembling a detachable ship deck cargo tank is provided, which comprises the following steps:

step one, disassembling a connecting bolt;

step two, cutting off the limiting device;

and step three, lifting off the deck cargo tank.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention has simple structure and convenient manufacture and installation, can install the deck cargo tank at the specified position of the main deck of the cargo tank without changing the structure of the original ship body, does not occupy the cargo tank space, does not damage the main structure of the original ship body, and simultaneously has the effect of shortening the time of docking or docking the ship.

(2) According to the invention, the load of the deck liquid cargo tank is completely borne by the front mounting base and the rear mounting base, and other supporting structures are not required to be added, so that the deck liquid cargo tank can be safely fixed at the specified position of the exposed area of the main deck, the normal work of the liquid cargo pump is ensured, the structure is light in weight, and the operation procedures required by installation are simplified.

(3) The installation base of the detachable deck cargo tank is installed in an area allowed by relevant classification society regulations and relevant rules, and after the installation of the deck cargo tank is finished, the visual field of monitoring personnel is not obstructed, so that the base can meet the requirements of the relevant classification society regulations and the relevant rules.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a deck cargo tank of the present invention.

Figure 2 is a top plan view of the deck cargo tank of the present invention.

Fig. 3 is a schematic structural diagram of a front mounting base and a rear mounting base of the present invention.

Fig. 4 is a schematic view of the installation structure of the detachable ship deck cargo tank of the invention.

FIG. 5 is a side view of the rear mounting base joint of the present invention.

Fig. 6 is a partially enlarged view of fig. 5.

FIG. 7 is a top view of the rear mounting base joint of the present invention.

Fig. 8 is a partially enlarged view of fig. 7.

Fig. 9 is a side view of the front mounting base joint of the present invention.

FIG. 10 is a top view of the front mounting base joint of the present invention.

Figure 11 is a transverse cross-sectional view of a removable deck cargo tank of the present invention.

Fig. 12 is a partially enlarged view of the ocular plate connecting structure of the present invention.

Fig. 13 is a schematic view of the front base mounting eye plate of the present invention.

Fig. 14 is a schematic structural view of a rear base mounting eye plate of the present invention.

FIG. 15 is a schematic view of a distribution structure of the limiting block of the present invention.

FIG. 16 is a schematic view of a connection structure of a limiting block and a mounting base according to the present invention.

Wherein the reference numerals are specified as follows: the cargo tank comprises a deck cargo tank 1, a front mounting base 2, a rear mounting base 3, a limiting device 4, a front base mounting eye plate 5, a rear base mounting eye plate 6, a connecting bolt 7, an anti-friction gasket 8, a front cargo tank mounting eye plate 9, a rear cargo tank mounting eye plate 10, a rear base 11, a reinforcing member 12, an anti-tilt bracket 13, a limiting web plate 14, a limiting panel 15 and a limiting block 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Example 1

The embodiment provides a detachable ship deck cargo tank, which is installed at a specified position of an exposed area of a main deck of a chemical ship and comprises a deck cargo tank 1, a front installation base 2, a rear installation base 3 and a limiting device 4.

The deck cargo tank 1 is a polyhedral and long cylindrical deck cargo tank 1 which is horizontally and longitudinally arranged at a fixed position of an exposed area of a main deck of a chemical ship, the embodiment adopts an octahedral structure, and a front cargo tank mounting eye plate 9 is respectively welded on the left and the right of the deck cargo tank 1 close to a bow part; a rear cargo hold mounting eye plate 10 is welded on the left and right of the deck cargo hold 1 close to the stern respectively; the front cargo compartment mounting eye plate 9 and the rear cargo compartment mounting eye plate 10 are welded on the reinforcing hoops. The bottom of the deck liquid cargo tank 1 close to the bow is provided with a front base, the bottom of the deck liquid cargo tank 1 close to the stern is provided with a rear base 11, the front base and the rear base 11 are in welded connection with the deck liquid cargo tank 1, and the front base and the rear base 11 are parallel to the bottom of the deck liquid cargo tank 1. The front base is placed on the front mounting base 2, and the rear base 11 is arranged on the rear mounting base 3.

Preceding mounting base 2, back mounting base 3 rigid weld respectively on the appointed position of deck, the both sides of preceding mounting base 2 are provided with preceding base installation eye-plate 5, the both sides of back mounting base 3 are provided with back base installation eye-plate 6, preceding cargo hold installation eye-plate 9 is unanimous with the position of preceding base installation eye-plate 5, back cargo hold installation eye-plate 10 is unanimous with the position of back base installation eye-plate 6, preceding cargo hold installation eye-plate 9 is fixed through connecting bolt 7 with preceding base installation eye-plate 5, back cargo hold installation eye-plate 10 is with back base installation eye-plate 6. The front and rear base mounting eye plates 5, 6 serve to limit the downward displacement of the deck tank 1.

The front mounting base 2 and the rear mounting base 3 are respectively and rigidly fixed at the specified positions of the exposed area of the main deck, the deck cargo tank 1 is longitudinally and horizontally placed on the front mounting base 2 and the rear mounting base 3, and the front mounting base 2 and the rear mounting base 3 are main structures for supporting the deck cargo tank 1.

The front mounting base 2 has the same structure as the rear mounting base 3 and comprises a base main body, wherein the upper end of the base main body is downwards provided with a concave mounting groove, and the concave mounting groove is preferably in a shape similar to the cross section of the deck cargo tank 1. The depth of the concave mounting groove is preferably equal to or consistent with the cross section shape of the halved cargo tank, the depth of the concave mounting groove is preferably equal to or close to the height of the deck cargo tank 1, and the two sides of the front mounting base 2 and the rear mounting base 3 are main structures for limiting the deck cargo tank 1 from unreasonable displacement to the side and preventing the deck cargo tank 1 from side turning. The lower ends of the two sides of the front mounting base 2 and the rear mounting base 3 extend outwards, preferably to the positions corresponding to the nearest reinforcing members 12 on the main deck. The distance between the bottom of the concave mounting groove and the deck is 800-1200 mm, so that after the deck liquid cargo tank 1 is placed on the front mounting base 2 and the rear mounting base 3, the relationship on the deck can be arranged below the deck liquid cargo tank 1, and the operation, the passing and the maintenance of personnel below the deck liquid cargo tank are facilitated.

The lower extreme of the sunken mounting groove of back mounting base 3 is provided with stop device 4 with the below contact department of back base 11 of deck cargo tank 1, and stop device 4 includes preceding limit structure and back limit structure, preceding limit structure back limit structure block respectively in the preceding, the back both sides of back mounting base 3. The front limiting structure and the rear limiting structure are identical in structure and are symmetrically arranged, and each front limiting structure and the rear limiting structure comprise a limiting panel 15, a limiting web 14 and an anti-tilting toggle plate 13, the limiting panel 15 is attached to the rear base 11, the part, located on the outer side of the anti-tilting toggle plate 13, of the limiting panel 15 is connected with the rear base 11 in a welded mode, the limiting web 14 is parallel to the rear mounting base 3, and the anti-tilting toggle plate 13 is connected with the rear base 11, the limiting panel 15 and the limiting web 14 in a welded mode. The two limiting webs 14 clamp the rear mounting base 3, so that the stern part of the deck liquid cargo tank 1 is rigidly connected with the rear mounting base 3, and the deck liquid cargo tank 1 is limited from longitudinally displacing towards the bow and stern directions. The front base is only closely placed on the front mounting base 2, and elastic connection between the lower part of the front part of the deck cargo tank 1 and the front mounting base 2 is achieved.

The eyelets on the front base mounting eyelet plate 5 are long waist holes, the length direction of the long waist holes is parallel to the fore-aft direction of the deck cargo tank 1, and the length of the short side of each long waist hole is 10 mm larger than the diameter of the connecting bolt 7. The connecting bolt 7 can be displaced properly in the long waist hole, so that the elastic connection between the upper part of the front part of the deck cargo tank 1 and the front mounting eye plate is realized. It should be noted that the same elongated waist hole is also provided on the front cargo compartment mounting eye plate 9. Circular bolt holes are formed in the rear base mounting eye plate 6 and the rear cargo tank mounting eye plate 10, and the diameters of the bolt holes only take assembly tolerance into consideration, so that the connecting bolts 7 cannot displace in the rear circular bolt holes, and rigid connection between the deck cargo tank 1 and the rear mounting base 3 is achieved.

The distance between the front base mounting eye plate 5 and the front cargo compartment mounting eye plate 9 and the distance between the rear base mounting eye plate 6 and the rear cargo compartment mounting eye plate 10 are 200-300 mm. The connecting bolt 7 is a longer screw rod with elastic deformation, and the elastic deformation of the longer screw rod can compensate for the longitudinal or lateral reasonable position of part of the deck liquid cargo tank 1, so that the shearing force applied to the connecting bolt 7 is reduced, and the deck liquid cargo tank 1 can be reasonably inclined and rolled.

The deck cargo tank 1 is fixed at the specified position of the main deck exposure area through the front mounting base 2, the rear mounting base 3, the limiting device 4 and the connecting bolt 7, so that the cargo tank space is not occupied, the main structure of the original ship body is not damaged, the construction or modification cost of the cargo tanker is greatly reduced, and the operation performance and the flexibility of the chemical cargo tanker are improved.

Limiting blocks 16 are welded on the two sides of the upper surface of the concave mounting groove in an alternating mode, and anti-friction gaskets 8 are arranged between the limiting blocks 16 on the two sides. Antifriction gaskets 8 are arranged between the front limiting structure and the rear mounting base 3 and between the rear limiting structure and the rear mounting base 3. The anti-friction gasket 8 is made of resin, and the thickness of the anti-friction gasket 8 is 20-30 mm. The distance between the deck cargo tank 1 and the anti-friction gaskets 8 is 5mm, and reasonable rolling and reasonable thermal expansion deformation of the deck cargo tank 1 can be allowed to occur.

Example 2

The embodiment provides an installation method of a detachable ship deck cargo tank, which comprises the following steps:

step one, respectively manufacturing a front mounting base 2, a rear mounting base 3 and a deck cargo tank 1;

welding a front mounting base 2 and a rear mounting base 3 at specified positions of an exposed area of a main deck, and fixing an anti-friction gasket 8 on the front mounting base 2 and the rear mounting base 3;

welding a front base and a rear base 11 at positions of the deck cargo tank 1 close to a bow part and a stern part respectively;

horizontally placing the deck cargo tank 1 on a front mounting base 2 and a rear mounting base 3, wherein the front base is in contact with the front mounting base 2, and the rear base 11 is in contact with the rear mounting base 3;

step five, welding a limiting device 4 at the position where the rear base 11 is contacted with the rear mounting base 3;

and step six, locking the mounting bolt.

The deck cargo tank 1 is safely placed at a predetermined position in the exposed area of the main deck of the chemical tanker via the front mounting base 2, the rear mounting base 3, the stopper 4, the anti-friction spacer 8, and the connecting bolt 7. Therefore, design changes of the cargo space occupying the chemical cargo tank and the hull main structure can be avoided. In addition, the deck cargo tank 1 base structure and the deck cargo tank 1 installed by the installation method thereof according to the present embodiment, the elastic connection between the same and the front installation base 2 and the rigid connection between the same and the rear installation base 3, can allow the deck cargo tank 1 to have reasonable stern inclination or displacement toward the bow during the navigation of the ship. Moreover, according to the base structure of the deck cargo tank 1 and the deck cargo tank 1 installed by the installation method of the base structure, a gap of 5mm is formed between two sides of the deck cargo tank 1 and the anti-friction gaskets 8 tightly attached to two sides of the front installation base 2 and the rear installation base 3, so that the deck cargo tank 1 can bear reasonable thermal expansion deformation in the sailing process of a ship; furthermore, the anti-friction gaskets 8 can avoid damage to the deck tank 1 and the foundation.

Example 3

The embodiment provides a method for disassembling a detachable ship deck cargo tank, which comprises the following steps:

step one, disassembling a connecting bolt 7;

step two, cutting off the limiting device 4;

and step three, lifting off the deck cargo tank 1.

Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.