Spinning vault assembly

Abstract

The utility model relates to the technical field of spinning vault assembly equipment of a large storage tank, in particular to a spinning vault assembly which comprises a vault body and a cylinder which are connected in a butt welding mode. The arch crown main body comprises a scalloped segment ring body and a central circular plate, the scalloped segment ring body comprises a plurality of scalloped segment plates provided with arc transition sections, the scalloped segment plates are connected in a butt welding mode, and the inner sides of the scalloped segment plates are all connected with the central circular plate in a welding mode; a rib plate frame used for reinforcing and supporting is arranged on the inner side of the arch crown body. According to the utility model, the strength and stability of the vault can be obviously improved; the welding amount of the spinning process is greatly reduced, the production efficiency is high, and the manufacturing and mounting period of the vault can be shortened. The material utilization rate of the spinning process is high, the materials are in direct butt joint instead of lap joint, in addition, angle steel rings are not needed, and the manufacturing cost of the vault can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spinning dome assembly equipment technical field of large storage tank, concretely relates to a spinning dome assembly. BACKGROUND

[0002] The information disclosed in the background of the utility model is only intended to increase the understanding of the overall background of the utility model, and is not necessarily regarded as acknowledging or implicitly suggesting that the information constitutes prior art known to those skilled in the art.

[0003] At present, the dome manufacturing of large storage tank mainly adopts traditional process such as melon seed plate lap joint fillet weld splicing, and the dome and the cylinder top angle steel ring fillet weld connection. Although these processes can meet the basic requirements, there are still some problems. For example, the dome and the cylinder top angle steel ring welding need to weld three circles of fillet weld, and the welding amount is large, and the process may produce welding defects; the dome melon seed plate lap joint fillet weld splicing process cannot guarantee the manufacturing precision of the dome, leading to dome deformation or air leakage. The sealing property between the dome and the storage tank wall is one of the key factors affecting the performance of the storage tank, and the traditional manufacturing process has deficiencies in the sealing property; in addition, there are dead angles at the fillet splicing between the dome and the storage tank wall, which are inconvenient to clean and other problems.

[0004] In addition, with the continuous increase of the volume of the storage tank, the weight and size of the dome also increase, which brings greater challenges to the manufacturing and installation of the dome. The traditional manufacturing process has been difficult to meet the requirements of large storage tanks on the strength, stability and sealing property of the dome. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a spinning dome assembly, which aims to solve the problems in the prior art, such as large welding amount of the dome and the cylinder top angle steel ring, easy to produce welding defects, easy to deform or leak air, and dead angles at the fillet splicing between the dome and the storage tank wall, which are inconvenient to clean and other problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A spinning dome assembly, comprising a dome main body and a cylinder, the dome main body and the cylinder are connected by butt welding;

[0008] The dome main body comprises a melon seed ring body and a center circular plate, the melon seed ring body comprises a plurality of melon seed plates provided with arc transition sections and connected by butt welding, and the inner side of each melon seed plate is welded to the center circular plate;

[0009] The inner side of the dome main body is provided with a rib plate frame for strengthening support.

[0010] Preferably, the ribbed frame comprises a ring rib, a cross rib and a plurality of spoke ribs corresponding to the petal plates;

[0011] The spoke ribs are arranged along the direction of the corresponding petal plates, the ring rib is arranged concentrically with the center plate inside the petal ring, and the cross rib is arranged inside the center plate.

[0012] Preferably, the ring rib, the cross rib and the plurality of spoke ribs are welded into an integral structure.

[0013] Preferably, the ribbed frame is welded into an integral structure with the dome body.

[0014] Preferably, the circular arc transition section is a circular arc transition section formed by spinning.

[0015] The utility model includes but is not limited to the following beneficial effects:

[0016] Improve manufacturing precision: the spinning dome assembly process adopts butt joint, which can accurately control the shape and size of the dome, and ensure the manufacturing precision of the dome.

[0017] Enhance strength: the spinning dome assembly adopts integral spinning forming, and the dome edge circular arc transition is butt welded with the cylinder, which can significantly improve the strength and stability of the dome.

[0018] Shorten construction period: the spinning process reduces the welding amount, has high production efficiency, and can shorten the manufacturing and installation period of the dome.

[0019] Reduce cost: the spinning process has high material utilization rate, the material is directly butt jointed without lap joint, and in addition, no angle steel ring is needed, which can reduce the manufacturing cost of the dome. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a schematic diagram of the overall external structure of the utility model;

[0021] Fig. 2 It is a perspective structure schematic diagram of the utility model in the overall overhead direction.

[0022] The reference signs involved in the drawings are:

[0023] 1, petal plate; 2, spoke rib; 3, ring rib; 4, center plate; 5, cross rib; 6, circular arc transition section; 7, butt joint weld between dome and cylinder; 8, cylinder; 9, butt joint weld between petal plates. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the utility model, the technical solutions of the utility model are further described below in combination with the drawings and examples.

[0025] Figs. 1-2 A spinning dome assembly is shown, a large dome storage tank, widely used in liquid food, petroleum, chemical industry and other industries, for storing various liquids and gases.

[0026] The spinning dome assembly comprises a dome body and a cylinder 8, and the dome body and the cylinder 8 are connected by butt welding;

[0027] The dome body comprises a melon ring body and a center circular plate 4, the melon ring body comprises a plurality of melon plates 1 provided with arc transition sections 6 and connected by butt welding, forming butt welds 9 between the melon plates 1, and the inner sides of the melon plates are welded to the center circular plate 4; the dome edge is spun into an arc transition and directly butt welded to the cylinder 8, forming a butt weld 7 between the dome and the cylinder 8, which eliminates stress concentration and improves the safety of the tank body. And butt welding only needs one circle of weld, greatly reducing the amount of welding; at the same time, butt welding does not need to use the original fillet welding angle steel ring, which saves the angle steel ring and saves materials and reduces costs; in addition, the lap fillet weld between the melon plates 1 of the dome is changed to butt weld, which improves the strength, stability and sealing of the dome; and eliminates dead angles, facilitates cleaning, and improves the cleanliness level of the tank body. The so-called melon plate in the present application refers to a design similar to melon with multiple pieces, each piece being a unit, collectively forming a dome body.

[0028] The inner side of the dome body is provided with a rib plate frame for strengthening support.

[0029] Specifically, the rib plate frame comprises a ring rib plate 3, a cross rib plate 5 and a plurality of spoke rib plates 2 corresponding to the melon plates;

[0030] The spoke rib plates 2 are arranged along the direction of the corresponding melon plates, the ring rib plate 3 is arranged concentrically with the center circular plate 4 inside the melon ring body, and the cross rib plate 5 is arranged inside the center circular plate 4. In this way, the strength of the overall dome structure is greatly improved, further improving the safety of the tank body.

[0031] Among them, the ring rib plate 3, the cross rib plate 5 and the plurality of spoke rib plates 2 are welded into an integral structure, which is more effective.

[0032] Among them, the rib plate frame and the dome body are welded into an integral structure, which can further improve the strength of the overall dome structure.

[0033] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0034] The terms "upper", "lower", "outer" "inner" and the like in the description and the claims of the present utility model and the above drawings, if any, are used to distinguish relative positions, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0035] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spinning dome assembly, comprising a dome body and a cylinder, characterized in that: the dome body and the cylinder are connected by butt welding; the dome body comprises a guava ring body and a center circular plate, the guava ring body comprises a plurality of guava plate butt welding connections provided with a circular arc transition section, the inner side of the guava plate is welded to the center circular plate; a rib plate frame is arranged on the inner side of the dome body to strengthen the support.

2. The spinning dome assembly according to claim 1, characterized in that: the rib plate frame comprises a ring rib plate, a cross rib plate and a plurality of spoke rib plates corresponding to the guava plate; the spoke rib plates are arranged along the direction of the corresponding guava plate, the ring rib plate is arranged concentrically with the center circular plate on the inner side of the guava ring body, and the cross rib plate is arranged on the inner side of the center circular plate.

3. The spinning dome assembly according to claim 2, characterized in that: the ring rib plate, the cross rib plate and the plurality of spoke rib plates are welded into an integral structure.

4. The spinning dome assembly according to claim 1, characterized in that: the rib plate frame and the dome body are welded into an integral structure.

5. The spinning dome assembly according to any one of claims 1 to 4, characterized in that: the circular arc transition section is a circular arc transition section formed by spinning.

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