CN210479696U

CN210479696U - Large-scale storage tank top with external latticed shell

Info

Publication number: CN210479696U
Application number: CN201920956762.7U
Authority: CN
Inventors: 葛阳; 米丰; 许学斌; 王磊; 任超
Original assignee: Hualu Engineering and Technology Co Ltd
Current assignee: Hualu Engineering and Technology Co Ltd
Priority date: 2019-03-11
Filing date: 2019-06-24
Publication date: 2020-05-08
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a large-scale storage tank roof with an external latticed shell, wherein the latticed shell on the top of the tank is arranged outside a skin plate, the skin plate is connected with a radial reinforcing rib through welding, a latitudinal reinforcing rib is connected with the radial reinforcing rib through a bolt to form a latitudinal rib ring, and the latitudinal reinforcing rib is not welded with the skin plate; the radial reinforcing rib is connected with the central ring beam through a bolt. The tank deck latticed shell is arranged on the outer side of the skin plate, so that no obvious edges and corners exist on the inner wall of the tank deck, the tank deck latticed shell is suitable for being stored in a medium with self-polymerization characteristics, the self-polymerization of the medium is effectively prevented, and further the damage phenomena that the tank deck collapses and the like caused by the self-polymerization are avoided. Meanwhile, the method is also suitable for the storage tank with internal corrosion prevention requirements and needing thermal spraying of an anti-corrosion coating, and spraying dead angles and a spraying leakage area are reduced. In addition, the external reinforcing ribs are connected through bolts, the field welding workload of the reinforcing ribs is greatly reduced, and the manufacturing period is shortened.

Description

Large-scale storage tank top with external latticed shell

Technical Field

The utility model relates to a large-scale storage tank deck of external latticed shell.

Background

The vertical cylindrical storage tank is widely applied storage equipment in petrochemical industry, and common structures are a planar tank bottom, a cylindrical barrel body and a spherical vault structure. The vault cover is supported by using ribs or reticulated shells according to different vault diameters of the storage tank, and the structure is mature, reliable, economical and simple. However, such a structure is not suitable for storage of polymer monomer media such as styrene, methyl acrylate, and propylene acetate, because such media will self-polymerize at the corners of the inner ribs or the reticulated shell, and the weight of the top of the can will be increased sharply due to excessive accumulation of the self-polymerizing media, resulting in the accident of collapsing the top of the can. In order to prevent the monomer easy to self-polymerize from self-polymerizing in the tank, a commonly used method is to add a polymerization inhibitor into a medium at present, but the method determines that the amount of the polymerization inhibitor is difficult to control, the polymerization inhibition cannot be realized when the amount of the polymerization inhibitor is too small, and the product quality is influenced when the amount of the polymerization inhibitor is too large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale storage tank deck of external latticed shell to avoid polymer monomer medium to take place the auto-agglutination and then arouse the destruction of tank deck in the inside rib of tank deck or latticed shell edges and corners structure department, make the operation of safe long-term stability under the condition that product quality can be guaranteed to the storage tank.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a large-scale storage tank deck of external latticed shell, includes latticed shell, skin board, tank deck pressure-bearing ring, radial stiffening rib, latitudinal direction stiffening rib, central collar tie beam, jar wall pressure-bearing ring, its characterized in that: the tank top latticed shell is arranged on the outer side of the skin plate, the skin plate is connected with the radial reinforcing ribs through welding, the latitudinal reinforcing ribs are connected with the radial reinforcing ribs through bolts to form latitudinal rib rings, and the latitudinal reinforcing ribs are not welded with the skin plate; the radial reinforcing rib is connected with the central ring beam through a bolt; four groups of oblique supports are uniformly distributed among radial reinforcing ribs of the latticed shell in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees; the end part of the radial reinforcing rib is provided with a slot and is welded with the bearing ring of the tank top; a supporting rib plate is arranged between the bearing ring of the tank top and the tank wall; a groined support is arranged in the central ring beam; the upper surface of the radial reinforcing rib is provided with a tank top annular platform and a railing.

Wherein, the central ring beam should be evenly distributed along the circumference and provided with the cleaning holes.

The radial reinforcing ribs and the central ring beam are made of H-shaped steel with better rigidity, and the latitudinal reinforcing ribs are made of channel steel.

Wherein, the lap joint of the bearing ring of the tank top and the skin plate is chamfered according to the gradient of at least 1:3 to prevent the accumulation of sundries such as rainwater and the like.

Wherein, the edges of the supporting rib plates are in fillet transition.

Wherein the interval between the latitudinal reinforcing ribs is 3-4 m.

Compared with the prior art, the utility model discloses beneficial effect embodies as follows:

1. the utility model discloses the setting of tank deck latticed shell is in the skin board outside, takes place the condition of autopolymerization from the structural elimination polymer medium, has guaranteed that the tank deck inner wall does not have obvious edges and corners, and the tank deck internal surface is plain noodles spherical shell, is suitable for to be saved in the medium that has the autopolymerization characteristic, the effectual autopolymerization that has prevented the medium, and then has avoided because the tank deck that the autopolymerization arouses collapses destruction phenomenon such as collapse. Meanwhile, the method is also suitable for the storage tank with internal corrosion prevention requirements and needing thermal spraying of an anti-corrosion coating, and spraying dead angles and a spraying leakage area are reduced.

2. The utility model discloses consider overall structure's the atress condition, guaranteeing that the structure has enough intensity, under the prerequisite of rigidity and stability, ability make full use of material performance to save material has guaranteed security and economic nature to lightweight development.

3. The external latticed shell reinforcing ribs are connected through the connecting plates and the bolts, all parts are hinged, a conventional fixed support model is changed into a simply supported model, the stress condition of the whole structure is improved, the field welding workload is greatly reduced, and the construction period of the storage tank is shortened.

4. Four groups of oblique supports are uniformly distributed among radial reinforcing ribs in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees of the tank top latticed shell, so that the tank top is prevented from being damaged by torsion.

5. A whole ring of tank top annular platform and a railing are built by means of radial reinforcing ribs (H-shaped steel) of the tank top, and the problem that normal operation and overhaul of tank top personnel are inconvenient due to the fact that the reinforcing ribs are arranged externally is solved.

Drawings

Fig. 1 is a top view of the supporting ribs of the net shell on the top of the tank of the present invention.

Figure 2 is the connection schematic diagram of the tank top bearing ring and the tank wall bearing ring of the utility model.

Fig. 3 is a schematic view of the tank top platform of the present invention.

Fig. 4 is a schematic view of the connection between the diagonal bracing, the radial reinforcing rib and the latitudinal reinforcing rib of the present invention.

Fig. 5 is a schematic view of the connection between the radial stiffener and the central ring beam according to the present invention.

In the drawings: the structure comprises an inclined support 1, a skin plate 2, a tank top bearing ring 3, a radial reinforcing rib 4, a latitudinal reinforcing rib 5, a central ring beam 6, a tank wall bearing ring 7, a support rib plate 8, a tank top platform 9, a railing 10 and a bolt 11.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a large-scale storage tank deck of external latticed shell is a plain noodles vault storage tank, and the tank deck structure mainly includes latticed shell, diagonal bracing 1, skin board 2, tank deck bearing ring 3, radial stiffening rib 4, latitudinal direction stiffening rib 5, centre collar tie beam 6, tank wall bearing ring 7, support gusset 8, tank deck platform 9, railing 10.

The concrete structure is as follows:

1. the net shell on the top of the pot is arranged on the outer side of the spherical melon peel skin plate 2.

2. As shown in fig. 2, the tank top pressure-bearing ring 3 and the tank wall pressure-bearing ring 7 adopt a welded structure and are supported by a proper number of supporting rib plates 8, and the edges of the supporting rib plates 8 are in fillet transition.

3. The radial reinforcing rib 4 of the tank top latticed shell adopts H-shaped steel with high stability as a supporting rib, is welded with the tank top bearing ring 3 and is connected with the central ring beam 6 through a bolt 11.

4. The latitudinal reinforcing rib 5 of the tank top latticed shell is connected with the adjacent latitudinal reinforcing rib 5 through a channel steel and a bolt 11, and is not in contact with the tank top skin plate 2, and the distance between the latitudinal reinforcing ribs 5 is 3-4 m.

5. The lap joint of the tank top pressure-bearing ring 3 and the skin plate 2 is subjected to edge cutting transition according to the gradient of at least 1:3, so that the accumulation of impurities such as rainwater is prevented.

6. Four groups of oblique supports 1 are uniformly distributed among radial reinforcing ribs 4 in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees of the tank top latticed shell, so that the tank top is prevented from being damaged by torsion.

7. The inclined support 1, the radial reinforcing rib 4, the latitudinal reinforcing rib 5 and the central ring beam 6 of the tank top latticed shell are connected through connecting plates, all parts are hinged, and the stress condition of the whole structure is improved.

8. The radial reinforcing ribs 4 and the central ring beam 6 adopt H-shaped steel with better rigidity, and the latitudinal reinforcing ribs 5 adopt channel steel; the reinforcing rib in the central ring beam 6 in the shape of a Chinese character 'jing' at the center of the tank top latticed shell also adopts H-shaped steel.

9. As shown in fig. 3, by means of the radial reinforcing rib (H-shaped steel) of the tank top, a full ring of annular platform 9 of the tank top and a railing 10 are built on the upper surface of the radial reinforcing rib 4, so that the problem that the external reinforcing rib blocks people from normal operation and maintenance work on the tank top is avoided.

10. In order to transfer the load of the tank roof to the reinforcing ribs, the radial reinforcing ribs 4 and the central ring beam 6 are continuously welded with the tank roof.

11. The central ring beam 6 should be uniformly provided with the cleaning holes along the circumference.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a large-scale storage tank deck of external latticed shell, includes latticed shell, skin board (2), tank deck bearing ring (3), radial stiffening rib (4), latitudinal direction stiffening rib (5), central ring roof beam (6), tank wall bearing ring (7), its characterized in that: the tank top latticed shell is arranged on the outer side of the skin plate (2), the skin plate (2) is connected with the radial reinforcing ribs (4) through welding, the latitudinal reinforcing ribs (5) are connected with the radial reinforcing ribs (4) through bolts (11) to form latitudinal rib rings, and the latitudinal reinforcing ribs (5) are not welded with the skin plate (2); the radial reinforcing rib (4) is connected with the central ring beam (6) through a bolt (11); four groups of oblique supports (1) are uniformly distributed among radial reinforcing ribs (4) of the latticed shell in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees; the end part of the radial reinforcing rib (4) is provided with a groove and is welded with the tank top pressure bearing ring (3); a supporting rib plate (8) is arranged between the tank top pressure-bearing ring (3) and the tank wall; a # -shaped support is arranged inside the central ring beam (6); the upper surface of the radial reinforcing rib (4) is provided with a tank top annular platform (9) and a railing (10).

2. The large-scale storage tank top with the external latticed shell as claimed in claim 1, wherein the central ring beams (6) are provided with the cleaning holes uniformly distributed along the circumference.

3. The large-scale storage tank roof with the external latticed shell as claimed in claim 1, wherein the radial reinforcing ribs (4) and the central ring beam (6) are made of H-shaped steel, and the latitudinal reinforcing ribs (5) are made of channel steel.

4. The large-scale storage tank top with the external latticed shell as claimed in claim 1, wherein the lap joint of the tank top pressure-bearing ring (3) and the skin plate (2) is subjected to edge cutting transition according to the gradient of at least 1:3 so as to prevent accumulation of impurities such as rainwater.

5. The large-scale storage tank roof with the external latticed shell according to claim 1, wherein the edges of the supporting rib plates (8) are in fillet transition.

6. The large-scale storage tank top with the external latticed shell as claimed in claim 1, wherein the spacing between the latitudinal reinforcing ribs (5) is 3-4 m.