CN212290217U

CN212290217U - LNG storage tank heat insulation fixing structure with high stability

Info

Publication number: CN212290217U
Application number: CN201922421515.XU
Authority: CN
Inventors: 蔡惠智
Original assignee: Suzhou Zhibang Energy Equipment Co ltd
Current assignee: Suzhou Zhibang Energy Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2021-01-05
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a LNG storage tank that stability is high fixed knot that insulates against heat constructs, including setting up at the saddle at LNG storage tank both ends and fixing the base on the hull, the saddle is used for bearing LNG storage tank, saddle and base fixed connection. The saddle includes first fixed plate, be fixed with the fixing base on the first fixed plate, the fixing base up end is provided with the circular arc recess that matches bottom the LNG storage tank, circular arc recess upper surface is provided with the heat insulating board, first fixed plate and fixing base side are provided with a plurality of deep floor, the equal lower extension in terminal surface four corners has the location lug of L type under the first fixed plate, be provided with the positioning groove who matches with the location lug on the base, the location lug forms the fixed area with the four sides of first fixed plate, the fixed area is provided with connect the via hole, first fixed plate is through the nut and the base fixed connection of through connect the via hole. The fixing structure has good heat insulation performance, good shearing resistance and high stability.

Description

LNG storage tank heat insulation fixing structure with high stability

Technical Field

The utility model relates to a LNG storage tank transportation field, in particular to LNG storage tank heat-insulating fixed knot that stability is high constructs.

Background

At present, when ships ship the liquefied natural gas LNG or the similar low boiling point goods, the LNG storage tank is usually adopted for loading, and the storage tank is arranged in the ship and is a movable object which can be stably arranged on a support base fixed on the ship body, the number of the support bases is two or more, and the support bases are arranged in parallel along the length direction of independent liquid tanks. The supporting base is formed by connecting a ship body base and a saddle matched with the liquid tank shell. An important characteristic of LNG liquids is that they must be stored in cryogenic storage tanks, since LNG liquids have a boiling point of-160 degrees at atmospheric pressure. Therefore, the storage tank is required to have good low temperature resistance and excellent cold insulation performance. The existing LNG storage tank saddle is directly connected with the hull base through a bolt, and although the fixed structure can enable the LNG storage tank to be fixed and stable, the C-shaped storage tank is in direct contact with the hull base, so that the LNG storage tank can exchange heat to the hull and the outside more or less through the hull base. And in the driving process of the ship, the ship body shakes, the LNG storage tank is not firmly fixed, and the stability is poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a LNG storage tank heat insulation fixed knot that stability is high constructs, and stability is good, and can insulate against heat.

In order to achieve the above purpose, the utility model discloses a technical scheme is: high LNG storage tank fixed knot that stabilizes constructs that insulates against heat, including setting up the saddle at LNG storage tank both ends and fixing the base on the hull, the saddle is used for bearing the LNG storage tank, saddle and base fixed connection, its characterized in that: the saddle includes first fixed plate, be fixed with the fixing base on the first fixed plate, the fixing base up end is provided with the circular arc recess that matches bottom the LNG storage tank, circular arc recess upper surface is provided with the heat insulating board, first fixed plate and fixing base side are provided with a plurality of deep floor, the equal lower locating lug that has the L type of extending in terminal surface four corners under the first fixed plate, be provided with the locating groove who matches with locating lug on the base, locating lug forms the fixed area with the four sides of first fixed plate, the fixed area is provided with connect the via hole, nut and base fixed connection that first fixed plate passes through connect the via hole.

Preferably, the first fixing plate is square, the four positioning lugs are arranged in central symmetry, a cross-shaped area is formed between the four positioning lugs, and the fixing seat and the reinforcing rib plate are located in an area, corresponding to the cross-shaped area, of the upper end face of the first fixing plate, so that the structure is more stable.

Preferably, two sides of the positioning projection are respectively parallel to two adjacent sides of the mounting plate, and the two sides are equal in length.

Preferably, the heat insulation plate is made of glass fiber and epoxy resin, is 4-7cm thick, and is glued at the bottom of the arc groove. The heat insulation effect is good, and the installation is convenient.

Preferably, hoisting devices are fixed to two sides of the saddle and are lifting lugs welded and fixed to the upper end face of the fixing seat, and the LNG tank is convenient to hoist.

Preferably, still be provided with fixed band steel on the fixing base, fixed band steel one end with fix the one side at the circular arc recess on the fixing base through the round pin axle, the fixed band steel other end passes through the opposite side that the arc recess was gone up to the bolt fastening in the fixing base, be provided with the fixed second fixed plate of fixed band steel of confession on the fixing base, the taut LNG storage tank of placing in the arc recess of fixed band steel is used for fixed LNG jar.

Preferably, the fixed flat steel is a semicircular hoop, and the outer surface of the fixed flat steel is coated with a polyurethane layer.

The utility model discloses be provided with the heat insulating board between LNG storage tank and the fixing base, it is effectual to insulate against heat, reduces the LNG jar body and hull and external temperature exchange. And the setting of L type's location lug and strengthening rib makes saddle, saddle and base link up firmly in front, with the tangential force homodisperse that the steamer rocked the production, this fixed knot structure has enough big intensity and rigidity, firm intensity.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic structural diagram of the present embodiment;

fig. 3 is a bottom view of the first fixing plate in this embodiment.

In the figure:

the LNG storage tank comprises a LNG storage tank body 1, a base 2, a first fixing plate 31, a fixing seat 32, a reinforcing rib plate 34, a positioning lug 35, a fixing area 36, a connecting through hole 37, a cross area 38, a heat insulation plate 4, a lifting lug 5, a fixing flat steel 6 and a second fixing plate 61.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 to 3, the thermal insulation fixing structure of the LNG storage tank 1 with high stability in the present embodiment includes saddles provided at both ends of the LNG storage tank 1 and bases 2 fixed to a hull. The LNG storage tank 1 is horizontally arranged on a saddle, and the saddle is arranged along the axial direction of the LNG storage tank 1 and is used for bearing the LNG storage tank 1. The saddle is fixedly connected with the base 2.

The saddle includes first fixed plate 31, be fixed with fixing base 32 on the first fixed plate 31, fixing base 32 and first fixed plate 31 formula structure as an organic whole adopt stainless steel. The upper end face of the fixing seat 32 is provided with an arc groove matched with the bottom of the LNG storage tank 1, and the upper surface of the arc groove is provided with a heat insulation plate 4. The heat insulation plate 4 is made of glass fiber and epoxy resin, is 4-7cm thick and is glued at the bottom of the arc groove, so that the heat insulation plate 4 is good in heat insulation effect and convenient and fast to install, and the temperature exchange between the LNG tank body and the ship body and the outside is reduced. LNG storage tank 1 is fixed on heat insulating board 4, and heat insulating board 4 and 1 of LNG storage tank are provided with the cementing layer of connecting the two.

The side edges of the first fixing plate 31 and the fixing seat 32 are provided with a plurality of reinforcing rib plates 34, one ends of the reinforcing rib plates are welded and fixed on the side wall of the fixing seat 32, one ends of the reinforcing rib plates are welded and fixed on the upper end face of the first fixing plate 31, and the reinforcing ribs enable the fixing seat 32 to be more stable. All lower terminal surface four corners of first fixed plate 31 extend earlier and have the positioning lug 35 of L type, be provided with the positioning groove who matches with positioning lug 35 on the base 2, positioning lug 35 forms fixed area 36 with the four sides of first fixed plate 31, fixed area 36 is provided with connect the via hole 37. The first fixing plate 31 is fixedly connected with the base 2 through a nut penetrating through the connecting through hole 37, and the base 2 is provided with a fixing hole matched with the through hole and allowing the nut to pass through. To enhance stability, the nut is typically made of a high strength steel material, such as 35 CrMoA. The positioning convex blocks 35 are of a plane structure, when the ship shakes, shearing force on the nuts is dispersed to the positioning convex blocks 35 around the nuts, abrasion on the nuts is reduced, and the first fixing plate 31 is more stable in connection with the base 2. Two sides of the positioning bump 35 are equal in length and are parallel to two adjacent sides of the mounting plate respectively, so that the stress is more uniform.

The first fixing plate 31 is square, and the four positioning protrusions 35 are arranged in central symmetry. Positioning projections 35 cross-shaped areas 38 are formed between four positioning projections 35. The fixed seat 32 and the reinforcing rib plate 34 are located on the upper end surface of the first fixed plate 31, and are located in the area where the upper end surface corresponds to the cross area 38, so that the structure is more stable.

In order to facilitate the hoisting of the storage tank, hoisting devices are fixed on two sides of the saddle and are lifting lugs 5 welded and fixed on the upper end surface of the fixed seat 32.

Still be provided with fixed band steel 6 on the fixing base 32, 6 one end of fixed band steel is connected with the fixing base 32 rotation through the round pin axle, and the round pin axle is fixed on one side of the circular arc recess on the fixing base 32. The other end of the fixed flat steel 6 is fixed on the other side of the arc-shaped groove in the fixed seat 32 through a bolt, a second fixed plate 61 for fixing the flat steel 6 is arranged on the fixed seat 32, and a through hole for the bolt to pass through is formed in the fixed seat 32. The fixed flat steel 6 is tensioned to be placed on the LNG storage tank 1 in the arc-shaped groove and used for fixing the LNG storage tank 1. The fixed flat steel 6 is a semicircular hoop, and the outer surface of the fixed flat steel 6 is coated with a polyurethane layer, so that the heat insulation effect is good.

And a heat insulation plate 4 is arranged between the LNG storage tank 1 and the fixing seat 32, so that the heat insulation effect is good, and the temperature exchange between the LNG storage tank 1 and the ship body and the outside is reduced. And the L-shaped positioning lug 35 and the reinforcing rib plate 34 are arranged, so that the saddle, the saddle and the base 2 are firmly connected, the tangential force generated when the ship shakes is uniformly dispersed, and the fixing structure has enough strength and rigidity and firm strength.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. High LNG storage tank fixed knot that stability constructs that insulates against heat, including setting up saddle and the base (2) of fixing on the hull at LNG storage tank (1) both ends, the saddle is used for bearing LNG storage tank (1), saddle and base (2) fixed connection, its characterized in that: the saddle comprises a first fixing plate (31), a fixing seat (32) is fixed on the first fixing plate (31), the upper end surface of the fixed seat (32) is provided with an arc groove matched with the bottom of the LNG storage tank (1), the upper surface of the arc groove is provided with a heat insulation plate (4), a plurality of reinforcing rib plates (34) are arranged between the first fixing plate (31) and the side edge of the fixing seat (32), l-shaped positioning convex blocks (35) extend downwards at four corners of the lower end surface of the first fixing plate (31), a positioning groove matched with the positioning lug (35) is arranged on the base (2), the positioning convex block (35) and four sides of the first fixing plate (31) form a fixing area (36), the fixing area (36) is provided with a connecting through hole (37), and the first fixing plate (31) is fixedly connected with the base (2) through a bolt penetrating through the connecting through hole.

2. The high-stability LNG storage tank heat-insulation fixing structure of claim 1, wherein: the first fixing plate (31) is square, the four positioning lugs (35) are arranged in a central symmetry mode, a cross-shaped area (38) is formed among the four positioning lugs (35), and the fixing seat (32) and the reinforcing rib plate (34) are located in an area, corresponding to the cross-shaped area (38), of the upper end face of the first fixing plate (31).

3. The LNG storage tank heat insulation fixing structure with high stability as claimed in claim 1, wherein: two sides of the positioning convex block (35) are respectively parallel to two adjacent sides of the first fixing plate (31), and the two sides of the positioning convex block (35) are equal in length.

4. The high-stability LNG storage tank heat-insulation fixing structure of claim 1, wherein: the heat insulation plate (4) is made of glass fiber reinforced epoxy resin, is 4-7cm thick and is glued at the bottom of the arc groove.

5. The high-stability LNG storage tank heat-insulation fixing structure of claim 1, wherein: lifting devices are fixed on two sides of the saddle, and the lifting devices are lifting lugs (5) welded and fixed on the upper end face of the fixed seat (32).

6. The high-stability LNG storage tank heat-insulation fixing structure of claim 1, wherein: still articulated on fixing base (32) have fixed band steel (6), fixed band steel (6) one end is rotated with fixing base (32) through the round pin axle of fixing on fixing base (32) circular arc recess one side and is connected, the opposite side of fixed band steel (6) other end through the bolt fastening arc recess on fixing base (32), be provided with on fixing base (32) and supply fixed band steel (6) fixed second fixed plate (61), LNG storage tank (1) of placing in the arc recess is strained to fixed band steel (6).

7. The LNG storage tank heat insulation fixing structure with high stability of claim 6, wherein: the fixed flat steel (6) is a semicircular hoop, and the outer surface of the fixed flat steel (6) is coated with a polyurethane layer.