CN214580414U

CN214580414U - Anti-oscillation wall assembly and liquefied gas tank

Info

Publication number: CN214580414U
Application number: CN202023167400.1U
Authority: CN
Inventors: 陈思远; 白涛; 顾俊; 杨丽苹
Original assignee: Nantong CIMC Sinopacific Ocean Offshore and Engineering Co Ltd
Current assignee: Nantong CIMC Sinopacific Ocean Offshore and Engineering Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-02
Anticipated expiration: 2030-12-24

Abstract

The present disclosure provides an anti-sloshing wall assembly and a liquefied gas tank. The swing stopping wall assembly is arranged in the tank body, the tank body is used for containing liquid, and the swing stopping wall assembly comprises a swing stopping wall, a fixing device and a fixing piece. The oscillation stopping wall is provided with a first connecting hole and a radial direction; the fixing device is provided with a second connecting hole and a fixing part, the first connecting hole is communicated with the second connecting hole, the fixing device is provided with a fixing part, and the fixing part is fixedly connected with the inner wall surface of the tank body; the fixing piece penetrates through the first connecting hole and the second connecting hole to limit the relative position of the oscillation stopping wall and the fixing device; in the radial direction, the size of the first connecting hole is larger than that of the fixing piece, so that the oscillation stopping wall can move in the radial direction. The scheme of this disclosure can improve the mounting structure stability of only swinging the wall.

Description

Anti-oscillation wall assembly and liquefied gas tank

Technical Field

The disclosure relates to the field of liquefied gas transportation, in particular to an oscillation preventing wall assembly and a liquefied gas tank.

Background

The marine liquefied gas tank is at the in-process of transportation liquefied gas, and the inevitable oscillation that can appear of inside liquid is strikeed, for reducing the liquid and strikeed the oscillation of fluid reservoir structure, shortens free liquid level, changes its cycle of shaking, can set up on the general jar internal wall and only swing the wall.

The commonly used connection mode of the oscillation stopping wall and the tank body structure is that a spring plate is connected, and the spring plate is formed by rolling a steel plate into a semi-circular arc shape. The spring plate is fixed between the swing stopping wall and the tank body in a welding mode. Under the low temperature working condition, the spring plate has larger internal stress due to cold press molding, and under the impact action of periodic load, a welding seam for connecting the spring plate is easy to crack due to fatigue failure, thereby leading to potential safety hazard.

The above information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

One object of the present disclosure is to improve the mounting structural stability of the oscillation stopping wall.

In order to solve the technical problem, the following technical scheme is adopted in the disclosure:

according to one aspect of the present disclosure, there is provided an anti-rattle wall assembly comprising:

the oscillation stopping wall is provided with a first connecting hole and has a radial direction;

the fixing device is provided with a second connecting hole and a fixing part, the first connecting hole is communicated with the second connecting hole, the fixing device is provided with a fixing part, and the fixing part is fixedly connected with the inner wall surface of the tank body;

the fixing piece penetrates through the first connecting hole and the second connecting hole to limit the relative position of the oscillation stopping wall and the fixing device; in the radial direction, the size of the first connecting hole is larger than that of the fixing piece, so that the oscillation stopping wall can move in the radial direction.

According to an embodiment of the present disclosure, the swing stopping wall includes a swing stopping wall body and a first connecting member fixedly connected to the swing stopping wall body, and the first connecting hole is opened in the first connecting member.

According to an embodiment of the present disclosure, the first connecting member is plate-shaped, one end of the first connecting member is fixedly connected to the edge of the oscillation stopping wall body, and the other end of the first connecting member extends along the radial direction of the oscillation stopping wall body.

According to an embodiment of the present disclosure, the fixing device includes a fixing device body and a second connecting member fixedly connected to the fixing device body, and the second connecting hole is formed in the second connecting member.

According to an embodiment of the present disclosure, the second connecting member is plate-shaped, one end of the second connecting member is fixedly connected to the fixing device body, and the other end of the second connecting member extends along the radial direction of the oscillation stopping wall body to be attached to the surface of the first connecting member and the surface of the second connecting member.

According to an embodiment of the present disclosure, the width of the first connecting member gradually decreases from the edge of the swing stopping wall body toward the fixing device; and/or

The width of the second connecting piece is gradually reduced from the edge of the fixing device to the direction of the swing stopping wall body.

According to an embodiment of the present disclosure, the first connecting member and the second connecting member are stacked in a thickness direction of the swing stopping wall body;

the first connecting hole and the second connecting hole extend along the thickness direction of the swing stopping wall body.

According to an embodiment of the present disclosure, the first connecting member and the second connecting member each have a reinforcing structure thereon.

According to an embodiment of the present disclosure, the fixing device is annular and is circumferentially disposed on the oscillation stopping wall, the number of the second connecting members is plural, and the plural second connecting members are uniformly arranged on the fixing device;

the first connecting pieces are also provided with a plurality of first connecting pieces which are arranged in one-to-one correspondence with the second connecting pieces.

According to another aspect of the present disclosure, there is provided a liquefied gas tank including a tank body and the slosh wall assembly as described;

the surface of the oscillation stopping wall assembly extends along the radial direction of the tank body, and the fixing device of the oscillation stopping wall assembly is fixedly connected with the inner wall of the tank body.

In this disclosure, wear to locate in first connecting hole and the second connecting hole through utilizing the connecting piece, with spacing the end swing the wall with fixing device's relative position to the end swing carry out active connection between wall and the fixing device, no welding seam forms, has consequently avoided the welding seam to lead to the fact the fracture owing to periodic fatigue stress, has avoided the welding seam fracture hidden danger that leads to the fact, has improved the stability that ends swing wall mounting structure.

And the size of the first connecting hole is larger than that of the connecting piece, so that the oscillation stopping wall can move along the radial direction of the oscillation stopping wall. Therefore, when the oscillation preventing wall is impacted by liquid in the tank body and moves in the radial direction, the first connecting hole can move relative to the connecting piece, so that the oscillation preventing wall is allowed to move, the stress generated by oscillation impact in the oscillation preventing wall and the oscillation preventing wall mounting structure is reduced, and the stability of the mounting structure between the oscillation preventing wall and the fixing device is improved.

And, because the liquefied gas is in the liquid, the temperature is lower, therefore the wall of preventing oscillating has shrink load because of the low temperature, when the wall of preventing oscillating shrinks radially, the first connecting hole can take place to move relatively to the link, allow the wall of preventing oscillating to move, thus reduce shrink load, improve the stability of the mounting structure between wall of preventing oscillating and the fixing device.

In conclusion, the technical scheme of the disclosure improves the stability of the installation structure of the oscillation preventing wall.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

FIG. 1 is a front view of an anti-rattle wall assembly shown in accordance with an embodiment.

FIG. 2 is an enlarged view at A of FIG. 1, shown in accordance with one embodiment.

FIG. 3 is a cross-sectional view taken along B-B of FIG. 2, according to one embodiment.

FIG. 4 is a side view illustrating the connection of an anti-rattle wall and a fixture, according to one embodiment.

The reference numerals are explained below: 1. an anti-rattle wall assembly; 10. an anti-oscillation wall; 11. an oscillation-stopping wall body; 12. a first connecting member; 111. a first connection hole; 20. a fixing device; 21. a fixing device body; 22. a second connecting member; 221. a second connection hole; 30. a connecting member.

Detailed Description

While this disclosure may be susceptible to embodiment in different forms, there is shown in the drawings and will herein be described in detail only some specific embodiments thereof with the understanding that the present description is to be considered as an exemplification of the principles of the disclosure and is not intended to limit the disclosure to that as illustrated herein.

Thus, a feature indicated in this specification will serve to explain one of the features of one embodiment of the disclosure, and not to imply that every embodiment of the disclosure must have the stated feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

In the embodiments shown in the drawings, directional references (such as upper, lower, left, right, front and rear) are used to explain the structure and movement of the various elements of the disclosure not absolutely, but relatively. These descriptions are appropriate when the elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indication of these directions changes accordingly.

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Preferred embodiments of the present disclosure are described in further detail below with reference to the accompanying drawings of the present specification.

The disclosed embodiment provides an anti-swing wall assembly, which is installed in a liquefied gas tank for a ship. The liquefied gas tank stores liquid. In one embodiment, a liquefied gas tank includes a tank body and an oscillation wall prevention assembly in an embodiment of the present disclosure. The tank body is approximately in a horizontal cylindrical body, and the surface of the oscillation stopping wall in the oscillation stopping wall component extends along the radial direction of the tank body. Two or more oscillation preventing walls can be arranged in the tank body according to the length of the tank body.

In the following embodiments, embodiments of the slosh stopping wall assembly 1 of the present disclosure will be explained.

Referring to fig. 1, fig. 1 is a front view of an anti-rattle wall assembly 1 according to an embodiment. In one embodiment, the anti-rattle wall assembly 1 includes an anti-rattle wall 10, and a fixing device 20. The oscillation preventing wall 10 is provided with a first connecting hole 111, and the oscillation preventing wall 10 has a radial direction; the fixing device 20 is provided with a second connecting hole 221 and a fixing part, the first connecting hole 111 is communicated with the second connecting hole 221, the fixing device 20 is provided with a fixing part, and the fixing part is fixedly connected with the inner wall surface of the tank body; the fixing member 30 is inserted into the first connection hole 111 and the second connection hole 221 to limit the relative position of the oscillation-stopping wall 10 and the fixing device 20; in the radial direction, the size of the first connection hole 111 is larger than that of the fixing piece 30 so that the oscillation preventing wall 10 can move in the radial direction.

The shape of the slosh wall 10 may be determined according to the shape of the radial surface of the can body. In one embodiment, the radial surface of the tank is substantially elliptical, and correspondingly, the shape of the oscillation stop wall 10 is also substantially elliptical.

The slosh wall 10 may include a web and a face plate disposed in a circumferential direction of the web. A plurality of overflowing holes are formed in the web plate, and when liquid in the tank shakes, the liquid impacts the swing stopping wall 10 and penetrates through the overflowing holes, so that the larger impact force borne by the stop wall is reduced. The fixing means 20 may be provided corresponding to the shape of the oscillation stopping wall 10. The fixing device 20 is connected with the oscillation stopping wall 10 and the inner side wall of the tank body.

In this embodiment, the oscillation stop wall 10 is provided with a first connection hole 111. The fixing device 20 has a second coupling hole 221. The first connection hole 111 and the second connection hole 221 correspond in position so that they can communicate. The fastening elements 30 can be fastening pins or else screws. The bolt can be made of low temperature resistant material, such as stainless steel. During the installation, bolts are sequentially passed through the first and second coupling holes 111 and 221 to limit the relative position of the oscillation preventing wall 10 and the fixing device 20. Of course, a nut is also required to mate with the bolt. Here, "limit" does not mean that the position between the oscillation preventing wall 10 and the fixing device 20 is fixed, but allows the oscillation preventing wall 10 to have a certain movable range, and when the movable range is exceeded, the oscillation preventing wall 10 is limited by the fixing device 30 and cannot exceed the movable range any more, so that the limit of the relative position of the oscillation preventing wall 10 and the fixing device 20 is realized. In the present embodiment, by providing the shape of the first connection hole 111, the oscillation stop wall 10 is made movable in the radial direction of the oscillation stop wall 10.

The first connection hole 111 may be an elongated kidney-shaped hole. The length direction is greater than the width direction. The dimension of the first connection hole 111 in the width direction is substantially equal to the diameter of the fixing member 30, so that when the sloshing wall 10 is impacted by liquid in the tank body and moves in the radial direction, the first connection hole 111 can move relative to the fixing member 30 to allow the sloshing wall 10 to move, thereby reducing the sloshing impact. It can be understood that the longer the first connection hole 111 is, the larger the range of motion allowed by the oscillation-stopping wall 10 is.

And, since the liquefied gas is in a liquid state and has a low temperature, the oscillation preventing wall 10 has a contraction load due to a low temperature, and when the oscillation preventing wall 10 contracts in a radial direction, the first connection hole 111 may move relative to the fixing member 30 to allow the oscillation preventing wall 10 to move, thereby reducing the contraction load and stabilizing the installation structure between the oscillation preventing wall 10 and the fixing member 20.

In addition, the swing stopping wall 10 is limited in a movable connection mode of the fixing piece 30, no welding seam is formed, and therefore cracking of the welding seam due to periodic fatigue stress is avoided.

And, compare in adopting the spring plate to connect, the use of steel has been reduced to this disclosed scheme, is favorable to reducing material cost to because fixing device 20 need not the welding with only swinging between wall 10, consequently greatly reduced the welding volume, improved production efficiency.

The fixing device 20 can be fixedly connected with the inner wall surface of the tank body by welding or screw connection.

Referring to fig. 2 and 3, fig. 2 is an enlarged view of a portion a of fig. 1 according to an embodiment, and fig. 3 is a cross-sectional view taken along B-B of fig. 2 according to an embodiment. In an embodiment, the oscillation stopping wall 10 includes an oscillation stopping wall body 11 and a first connecting member 12 fixedly connected to the oscillation stopping wall body 11, and the first connecting hole 111 is opened on the first connecting member 12. Of course, the first connection hole 111 may be opened on the oscillation preventing wall body 11.

Specifically, the first connecting member 12 is plate-shaped, one end of the first connecting member 12 is fixedly connected to the edge of the oscillation preventing wall body 11, and the other end extends along the radial direction of the oscillation preventing wall body 11. One end of the first connecting member 12 and the edge of the oscillation stopping wall body 11 may be connected by welding to improve the reliability of the connection. Or the first connecting member 12 is integrally formed with the oscillation suppressing wall body 11. The thickness of the first connection member 12 may be greater than that of the oscillation stopping wall 10 to improve stability of connection with the second connection member 22.

Similarly, the fixing device 20 includes a fixing device body 21 and a second connecting member 22 fixedly connected to the fixing device body 21, and a second connecting hole 221 is opened in the second connecting member 22.

Specifically, the second connecting member 22 is plate-shaped, one end of the second connecting member 22 is fixedly connected to the fixing device body 21, and the other end of the second connecting member 22 extends along the radial direction of the oscillation preventing wall body 11 to be attached to the surface of the first connecting member 12 and the surface of the second connecting member 22, so that the contact area between the first connecting member 12 and the second connecting member 22 is increased, the friction force is increased, and the connection stability between the first connecting member 12 and the second connecting member 22 is improved.

One end of the second connector 22 and the edge of the fixture body 21 may be connected by welding to improve the reliability of the connection. Or the second connector 22 may be integrally formed with the device body. The thickness of the second connector 22 may be greater than the thickness of the fixture body to improve the stability of the connection with the first connector 12.

Further, in an embodiment, the width of the first connection member 12 gradually decreases from the edge of the swing stopping wall body 11 toward the fixing device 20, and/or the width of the second connection member 22 gradually decreases from the edge of the fixing device 20 toward the swing stopping wall body 11.

In this embodiment, the contact area of the first connecting member 12 with the edge of the oscillation stop wall body 11 is large to improve the reliability of the connection with the oscillation stop wall body 11. The second connector 22 has a larger contact area with the edge of the fixture body 21 to improve the reliability of connection with the fixture body 21. By setting the width of the first connecting piece 12 and/or the width of the first connecting piece 12 to be gradually reduced, the elastic force of the contact part of the first connecting piece 12 and the second connecting piece 22 is improved, so that when the oscillation stopping wall 10 is impacted by liquid, the first connecting piece 12 and the second connecting piece 22 with narrow widths can provide certain elasticity to be used as buffering. And the width of the first connecting piece 12 and the second connecting piece 22 is gradually reduced, which is beneficial to reducing the using amount of steel, thereby being beneficial to reducing the weight of the liquefied gas tank and the production cost.

In the above embodiment, the surface of the first connecting member 12 is attached to the surface of the second connecting member 22. Specifically, the first connecting piece 12 and the second connecting piece 22 are arranged in an overlapping manner in the thickness direction of the oscillation stopping wall body 11; the first connection hole 111 and the second connection hole 221 extend in the thickness direction of the oscillation preventing wall body 11.

Referring to fig. 4, fig. 4 is a side view of a connection portion of the oscillation stop wall 10 and the fixing device 20 according to an embodiment. In this embodiment, a plurality of first connection holes 111 may be provided on the first connection member 12 and a plurality of second connection holes 221 may be provided on the second connection member 22, corresponding to the region where the first connection member 12 and the second connection member 22 are correspondingly stacked. The first connection holes 111 and the second connection holes 221 are provided in one-to-one correspondence to improve connection fastenability of the first connection member 12 and the second connection member 22. For the first connection holes 111 of the same first connector 12, the first connection holes 111 extend in the same direction, so that the radial movement of the oscillation-stopping wall 10 is not hindered.

Further, the first connecting member 12 and the second connecting member 22 each have a reinforcing structure on the surface thereof. The reinforcing structure can be a reinforcing rib, a reinforcing bulge, a reinforcing grid and the like. The present embodiment can improve the reliability of the connection between the first connector 12 and the second connector 22, and can resist strong periodic impact load and shrinkage load.

In one embodiment, the fixing device 20 is annular and is disposed around the circumference of the swing stopping wall 10, the second connecting members 22 are multiple, and the multiple second connecting members 22 are uniformly disposed on the fixing device 20. It should be understood that the first connectors 12 and the second connectors 22 are arranged in a one-to-one correspondence.

It should be understood that the extending direction of the first connection hole 111 on each first connector 12 is different, and the extending direction of the first connection hole 111 on each first connector 12 is consistent with the radial direction of its own position.

The number of the first connecting pieces 12 may be specifically set according to the size of the oscillation stop wall 10. Illustratively, one first connecting element 12 may be provided every 45 °, so that a total of 8 first connecting elements 12, 8 second connecting elements 22 are provided. Of course, the angle is not limited to 45 °, 30 °, and 60 °.

The present disclosure also proposes a liquefied gas tank characterized by comprising the sloshing wall assembly 1 in the above-described embodiment; the surface of the oscillation stopping wall 10 of the oscillation stopping wall assembly 1 extends along the radial direction of the tank body, and the fixing device 20 of the oscillation stopping wall assembly 1 is fixedly connected with the inner wall of the tank body.

While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. An anti-sloshing wall assembly installed in a tank for holding a liquid, the anti-sloshing wall assembly comprising:

2. The anti-rattle wall assembly according to claim 1, wherein the anti-rattle wall includes an anti-rattle wall body and a first connector fixedly connected to the anti-rattle wall body, the first connection hole being opened in the first connector.

3. The slosh wall assembly of claim 2 wherein the first connector is plate-shaped, and one end of the first connector is fixedly connected to the edge of the slosh wall body, and the other end of the first connector extends in a radial direction of the slosh wall body.

4. The swing wall assembly according to claim 3, wherein the fixing device includes a fixing device body and a second connecting member fixedly connected to the fixing device body, and the second connecting hole is opened in the second connecting member.

5. The slosh wall assembly of claim 4 wherein the second connector is plate-shaped, and one end of the second connector is fixedly connected to the fixture body and the other end extends in a radial direction of the slosh wall body to engage with a surface of the first connector and a surface of the second connector.

6. The anti-rattle wall assembly according to claim 4, wherein the first connector has a width gradually decreasing from the edge of the anti-rattle wall body toward the fixing device; and/or

7. The slosh wall assembly of claim 4 wherein the first connector overlaps the second connector along the thickness of the slosh wall body;

8. The anti-rattle wall assembly according to claim 4, wherein the first connector and the second connector each have a reinforcing structure thereon.

9. The swing wall assembly as claimed in claim 4, wherein the fixing device is ring-shaped and is disposed around the circumference of the swing wall, and the second connecting members are provided in plurality and are uniformly disposed on the fixing device;

10. A liquefied gas tank, comprising a tank body and the slosh stopping wall assembly defined in any one of claims 1 to 9;