Large storage tank

Abstract

The utility model belongs to the technical field of large storage tanks, and particularly relates to a large storage tank which comprises a large storage tank body, a first fixing ring is welded to the outer wall, close to the top end, of the large storage tank body, and a second fixing ring is welded to the outer wall, close to the top end, of the large storage tank body. A circle of first guide ring is welded on the outer wall of the first fixing ring, a circle of second guide ring is welded on the outer wall of the second fixing ring, and a ladder stand is movably installed between the first guide ring and the second guide ring. At the moment, the crawling ladder is moved, the upper end and the lower end of the crawling ladder can move along the tracks of the corresponding first guide ring and the second guide ring, so that the crawling ladder can be moved to any position of the outer wall of the large storage tank through the structure, and a worker can effectively move the crawling ladder to an area needing maintenance through the structure; therefore, the maintenance of the large storage tank is more convenient and safer.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of large storage tank, specifically relates to a large storage tank. BACKGROUND

[0002] Large storage tank is a modern large industrial storage equipment, and is designed to meet large-scale and high-efficiency liquid storage requirements. The diameter of the storage tank reaches 20 meters, the height is also eye-catching, and reaches 15 meters, and the combination of 20-meter diameter and 15-meter height ensures that the storage tank can accommodate a large amount of liquid medium, whether it is petroleum, chemical raw materials, food-grade liquid or other industrial liquid, which can easily cope with the huge demand of industrial production and logistics transfer.

[0003] As a key industrial storage equipment, the design of the large storage tank often focuses on practicality and safety. Usually, in order to facilitate the daily inspection, maintenance and rapid response of the operating personnel in emergency, a solid and durable ladder system is carefully arranged on one side of the storage tank. However, in some applications, the connection between part of the ladder and the large storage tank is still limited to the traditional welding technology.

[0004] Although this welding connection method ensures the stability of the structure to a certain extent, it also has its limitations. Especially when facing the extensive and variable maintenance needs of the outer wall of the large storage tank, if there is a large distance deviation between the maintenance area and the existing ladder position, the convenience and practicality of the ladder will be greatly reduced. The operating personnel may need to walk a long distance, or even need to use additional auxiliary equipment to reach the target maintenance area, which not only increases the operation difficulty and time cost, but also may pose a potential threat to the safety of the operating personnel. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a large storage tank, which aims to solve the problem that although the welding connection method ensures the stability of the structure to a certain extent, it also has its limitations. Especially when facing the extensive and variable maintenance needs of the outer wall of the large storage tank, if there is a large distance deviation between the maintenance area and the existing ladder position, the convenience and practicality of the ladder will be greatly reduced. The operating personnel may need to walk a long distance, or even need to use additional auxiliary equipment to reach the target maintenance area, which not only increases the operation difficulty and time cost, but also may pose a potential threat to the safety of the operating personnel.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a large storage tank, comprising a large storage tank, a first fixed ring is welded on the outer wall near the top end of the large storage tank, a second fixed ring is welded on the outer wall near the top end of the large storage tank;

[0007] The outer wall of the first fixed ring is welded with a first guide ring, the outer wall of the second fixed ring is welded with a second guide ring, and a ladder is movably arranged between the first guide ring and the second guide ring.

[0008] In order to enable the ladder to be adjusted in position along the outer wall of the large storage tank, as a preferred large storage tank of the utility model, a side ring is welded on the outer wall of the upper and lower sides of the second fixed ring and the second guide ring away from the butt joint end. The upper and lower ends of one side of the bracket of the ladder are respectively provided with a convex notch, and the inner wall of the two sides near the convex notch is respectively provided with a side opening. The convex notch and the side opening at the upper end are movably connected with the first guide ring and the side ring, and the convex notch and the side opening at the lower end are movably connected with the second guide ring and the side ring.

[0009] In order to fix the position of the adjusted ladder, as a preferred large storage tank of the utility model, a horizontal plate is fixedly arranged between the two brackets of the ladder, and two screw holes are formed in the surface of the horizontal plate. A fixing bolt is screwed into the screw hole.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] By removing the fixing bolt, the fixed connection structure between the ladder and the large storage tank is released, and the upper and lower ends of the ladder are moved along the track of the corresponding first guide ring and second guide ring, so that the ladder can be moved to any position on the outer wall of the large storage tank through the above structure. The worker can effectively move the ladder to the area to be maintained through the above structure, so that the maintenance of the large storage tank is more convenient and safe. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a local side view structural schematic diagram of the ladder of the utility model;

[0015] Figure 3 It is a convex notch structural schematic diagram of the utility model;

[0016] Figure 4 It is the first guide ring assembly structure schematic view of the utility model.

[0017] In the drawing: 1, large storage tank; 2, first fixed ring; 3, first guide ring; 301, edge ring; 4, second fixed ring; 5, second guide ring; 501, butt joint hole; 6, ladder; 601, convex notch; 602, side opening; 603, horizontal plate; 604, screw hole; 605, fixed bolt. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] Please refer to Figures 1-4 The utility model provides the following technical scheme: a large storage tank, which comprises a large storage tank 1, the large storage tank 1 is composed of multiple layers, the sectional type welding of each layer is full argon arc welding, the full argon arc welding can make the deformation small, the residual stress is small, and the overall appearance is better, the full penetration of full argon arc welding can be adopted, and the problem of virtual welding basically does not exist, so that the qualified rate is improved.

[0020] A first fixed ring 2 is welded on the outer wall of the large storage tank 1 close to the top end, and a second fixed ring 4 is welded on the outer wall of the large storage tank 1 close to the top end.

[0021] A first guide ring 3 is welded on the outer wall of the first fixed ring 2, a second guide ring 5 is welded on the outer wall of the second fixed ring 4, and a ladder 6 is movably installed between the first guide ring 3 and the second guide ring 5.

[0022] Preferably, an edge ring 301 is welded on the outer wall of the second fixed ring 4 and the second guide ring 5 away from the butt joint end on the upper and lower sides respectively. A convex notch 601 is formed on the upper and lower ends of one side of the support of the ladder 6 respectively, and a side opening 602 is formed on the inner wall of the two sides close to the inside of the convex notch 601 respectively. The convex notch 601 and the side opening 602 on the upper end are movably connected with the first guide ring 3 and the edge ring 301, and the convex notch 601 and the side opening 602 on the lower end are movably connected with the second guide ring 5 and the edge ring 301.

[0023] When the position of the area needing maintenance on the outer wall of the large storage tank 1 is too different from the position of the ladder 6 during specific use, the two fixed bolts 605 are removed first, so that the relative fixed structure between the ladder 6 and the large storage tank 1 is released, and then the ladder 6 can be moved to the maintenance area. The details of moving the ladder 6 are as follows:

[0024] First push the ladder 6, the ladder 6 force will be through the convex recess 601 along the track of the first guide ring 3 and the second guide ring 5, while the ladder 6 moves two groups of side opening 602 will also move along the outer wall of the corresponding edge ring 301, so as to ensure that the ladder 6 will not fall off the first guide ring 3 and the second guide ring 5, stop pushing when the ladder 6 moves to the maintenance area, so that the maintenance personnel can maintain the area.

[0025] Preferably: the two supports of the ladder 6 are fixedly installed with a cross plate 603, the surface of the cross plate 603 is provided with two screw holes 604, and the inside of the screw hole 604 is threaded through a fixed bolt 605. One end of the fixed bolt 605 is threadedly connected in the inside of the butt joint hole 501, the butt joint hole 501 is provided with a circle on the outer wall of the second guide ring 5 at equal intervals, and the interval between the two adjacent butt joint holes 501 is adapted to the interval between the two screw holes 604.

[0026] In specific use, after the approximate position of the ladder 6 is adjusted, whether the two screw holes 604 on the cross plate 603 are aligned with the corresponding butt joint holes 501 is observed at this time, if it is in the misaligned state, the position of the ladder 6 is slightly adjusted at this time to make it aligned, and after alignment, the fixed bolt 605 is connected with the butt joint hole 501 through the screw hole 604, so that the ladder 6 can be fixed, thereby ensuring the stability of the ladder 6 in use.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A large storage tank comprising a large storage tank (1), characterized by: The large storage tank (1) is welded with a first fixed ring (2) on the outer wall near the top end, and is welded with a second fixed ring (4) on the outer wall near the bottom end; The outer wall of the first fixed ring (2) is welded with a first guide ring (3), and the outer wall of the second fixed ring (4) is welded with a second guide ring (5); the first guide ring (3) and the second guide ring (5) are movably installed with a ladder (6).

2. A large storage tank according to claim 1, characterized in that: The upper and lower outer walls of the second fixed ring (4) and the second guide ring (5) away from the butt joint end are respectively welded with a ring of edge rings (301).

3. A large storage tank according to claim 1, characterized in that: The upper and lower ends of one side of the bracket of the ladder (6) are respectively provided with a convex notch (601), and the two sides of the inner wall near the convex notch (601) are respectively provided with a side opening (602).

4. A large storage tank according to claim 3, characterized in that: The convex notch (601) and the side opening (602) at the upper end are movably connected with the first guide ring (3) and the edge ring (301), and the convex notch (601) and the side opening (602) at the lower end are movably connected with the second guide ring (5) and the edge ring (301).

5. A large storage tank according to claim 1, characterized in that: The two brackets of the ladder (6) are fixedly installed with a transverse plate (603), and the surface of the transverse plate (603) is provided with two screw holes (604) penetratingly, and the inside of the screw hole (604) is screwed with a fixing bolt (605).

6. A large storage tank according to claim 5, characterized in that: One end of the fixing bolt (605) is screwed in the inside of the butt joint hole (501), and the butt joint hole (501) is provided with a ring on the outer wall of the second guide ring (5) at equal intervals, and the interval between the two adjacent butt joint holes (501) is matched with the interval between the two screw holes (604).

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