CN211999577U

CN211999577U - Hoisting structure for steel structure module group of flexible coking device

Info

Publication number: CN211999577U
Application number: CN202020605322.XU
Authority: CN
Inventors: 刘富贵; 马强; 闫俊峰; 贾乾坤; 刘延雄
Original assignee: China Chemical Engineering Second Construction Corp
Current assignee: China Chemical Engineering Second Construction Corp
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-24
Anticipated expiration: 2030-04-21

Abstract

The utility model relates to a hoisting structure of a steel structure module group of a flexible coking device, wherein a first rib plate, a second rib plate and a third rib plate are sequentially arranged at the top part, the middle part and the lower part of a lifting lug and are respectively fixedly connected with the outer side of a flange plate at one end of a vertical column I-shaped steel; the inner side surface of the fourth rib plate is connected with the side surface of the lifting lug, and the upper end and the lower end of the fourth rib plate are respectively connected with the bottom of the third rib plate and the top of the cross beam; the fifth rib plate and the sixth rib plate are respectively fixed on two sides of the I-shaped steel web plate of the upright post. The structure of the lifting lug is reinforced by the rib plates, the web plates of the I-steel and the flange plates of the welded lifting lug are locally reinforced by the rib plates, so that the structural form and the stress of the lifting lug tend to be reasonable, and the I-steel bolt connecting surface close to the upper part of the lifting lug does not deform any more after being hoisted, thereby ensuring the smooth construction of bolt connection.

Description

Hoisting structure for steel structure module group of flexible coking device

Technical Field

The utility model relates to a hoisting structure is specifically a nimble hoisting structure of coker steel construction module group.

Background

At present, with the development speed of the domestic petrochemical industry becoming faster and faster, new processes continuously appear, the petroleum cracking technology of the petrochemical industry also develops from the delayed coking technology to the flexible coking technology, the large-scale of equipment gradually increases, the number of layers of the framework is large, the height of the framework is high, the structural process is complex, the arrival time of three devices in the framework is later, in order to ensure the overall installation progress of the project, the modular construction is adopted for installing the framework steel structure, the old mode that the traditional steel structural member is hoisted and assembled from the framework foundation to the top is changed, the steel structural framework is divided into the assembly of a plurality of framework unit modules, and after the devices in the framework are installed in place in advance, the hoisting of each framework unit module is carried out. When the sectional framing framework is used for hoisting, the insufficient torsion resistance of the strong shaft flange plate of the large I-steel needs to be considered, and the lifting lug structure needs to be further strengthened.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a nimble hoisting structure of coker steel structural module group to strengthen lug structure, and carry out local enhancement to the web and the flange board of I-steel.

For solving the above technical problem, the utility model discloses a technical scheme is:

a hoisting structure of a flexible coking unit steel structure module group comprises a lifting lug, a first rib plate, a second rib plate, a third rib plate, a fourth rib plate, a fifth rib plate and a sixth rib plate;

the first rib plate, the second rib plate, the third rib plate and the fourth rib plate are respectively fixed on two sides of the lifting lug, wherein the first rib plate, the second rib plate and the third rib plate are sequentially arranged at the top part, the middle part and the lower part of the lifting lug and are respectively and fixedly connected with the outer side of a flange plate at one end of the upright I-steel;

the inner side surface of the fourth rib plate is connected with the side surface of the lifting lug, and the upper end and the lower end of the fourth rib plate are respectively connected with the bottom of the third rib plate and the top of the cross beam;

the fifth rib plate and the sixth rib plate are respectively fixed on two sides of the I-shaped steel web plate of the stand column, the fifth rib plate is arranged corresponding to the position of the first rib plate, the sixth rib plate is arranged corresponding to the position of the second rib plate, and the fifth rib plate is parallel to the sixth rib plate.

Furthermore, the lifting lug comprises a lifting lug main plate and a lifting lug reinforcing plate, the lifting lug reinforcing plate is fixed on two sides of the lifting lug main body between the first rib plate and the second rib plate, and lifting holes are correspondingly formed in the lifting lug main plate and the lifting lug reinforcing plate.

The utility model discloses a structure to the lug adopts the gusset to strengthen to web and the flange plate of welding lug to I-steel have also carried out local enhancement with the gusset, make the structural style and the atress of lug tend towards rationally, the I-steel bolted connection face on hoisting back next-door neighbour lug upper portion does not have any smooth construction that has warp bolted connection, a structure is simple, cooperation segmentation group frame framework hoisting method, convenient operation has effectively practiced thrift the manual work, and time saving and labor saving have improved the installation effectiveness greatly.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention in any way.

FIG. 1 is a flexible coking unit steel construction module group hoisting structure's front view schematic diagram.

Figure 2 is nimble coker steel construction module group hoisting structure look sideways at the schematic diagram.

In the figure, 1-lifting lug, 2-first rib plate, 3-second rib plate, 4-third rib plate, 5-fourth rib plate, 6-fifth rib plate, 7-sixth rib plate, 8-lifting lug main plate, 9-lifting lug reinforcing plate, 10-upright I-steel and 11-cross beam.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the present invention will be further clearly and completely described below with reference to the accompanying drawings and embodiments. In addition, the features of the embodiments and examples in the present application may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The utility model relates to a what typical embodiment provided is a nimble coker steel structure module group hoisting structure, including lug 1, first gusset 2, second gusset 3, third gusset 4, fourth gusset 5, fifth gusset 6 and sixth gusset 7.

In the present embodiment, there are two first rib plates 2, two second rib plates 3, two third rib plates 4, two fourth rib plates 5, two fifth rib plates 6, and two sixth rib plates 7. The lifting lug adopts a plate type lifting lug.

As shown in fig. 1 and 2, a first rib plate 2, a second rib plate 3, a third rib plate 4 and a fourth rib plate 5 are respectively fixed at two sides of a lifting lug 1, wherein the first rib plate 2, the second rib plate 3 and the third rib plate 4 are sequentially arranged at the top, the middle and the lower part of the lifting lug 1, and the first rib plate 2, the second rib plate 3 and the third rib plate 4 are respectively fixedly connected with the outer side of a flange plate at one end of an upright I-steel 10.

The inner side surface of the fourth rib plate 5 is connected with the side surface of the lifting lug 1, and the upper end and the lower end of the fourth rib plate 5 are respectively connected with the bottom of the third rib plate 4 and the top of the cross beam 11;

the fifth rib plate 6 and the sixth rib plate 7 are respectively fixed on two sides of a web plate of the vertical column I-shaped steel 10, the fifth rib plate 6 is arranged corresponding to the position of the first rib plate 2, the fifth rib plate 6 is arranged on a horizontal extension line of the first rib plate 2, the sixth rib plate 7 is arranged corresponding to the position of the second rib plate 3, the sixth rib plate 7 is arranged on a horizontal extension line of the second rib plate 3, and the fifth rib plate 6 is parallel to the sixth rib plate 7.

In a preferred embodiment, the lifting lug 1 comprises a lifting lug main plate 8 and a lifting lug reinforcing plate 9, the lifting lug reinforcing plate 9 is fixed on two sides of the lifting lug main body 8 between the first rib plate 2 and the second rib plate 3, and lifting holes are correspondingly formed in the lifting lug main plate 8 and the lifting lug reinforcing plate 9.

Adopt hoisting structure during, need select the hoisting point on the steel construction module group that the piecemeal calculated, design the lug of hoist and mount usefulness. The plate-type lifting lug is selected as a main lifting lug, calculation is carried out according to a Raman formula of the lifting lug calculation, the structure of the lifting lug is strengthened by considering that the torsion resistance of a strong-axis flange plate of large I-steel is not enough, the web plate of the I-steel and the flange plate of the welding lifting lug are also locally strengthened, the structural form and the stress of the lifting lug tend to be reasonable, and the bolt connection surface of the I-steel close to the upper part of the lifting lug does not have any deformation after hoisting, so that the smooth construction of bolt connection is ensured.

After the lifting lugs are subjected to stress analysis, the lifting lugs 1 are welded on a strong axial surface of a strong shaft of a steel structure frame upright post, after the lifting stress, the lifting stress is loaded to flange plates and webs of the I-shaped steel through the stiffened plates (the first stiffened plate, the second stiffened plate and the third stiffened plate) of the lifting lugs 1, and is transmitted to the flange plates (the strong axial surface) at the other end through the stiffened plates (the fifth stiffened plate and the sixth stiffened plate) of the webs, so that the vertical gravity is directly borne, and the eccentric moment and the lateral torque are reasonably transmitted to the flange plates (the strong axial surface) at the other end of the I-shaped steel upright post through the stiffened plates of the two webs, thereby achieving the effect of the whole stress of the section of the steel upright post.

After the lugs are welded into a main body structure, magnetic powder inspection and dye penetrant inspection are carried out on all welding seams, and welding quality is checked. Because adjacent welding seams at the welding position are too close to each other and the welding thermal stress is concentrated, the excessively close welding seams are subjected to medium-temperature heat treatment after the welding is finished. And then performing dye check again to ensure the safety of hoisting.

Taking a certain petrochemical project of Wenlai implemented by the applicant as an example, a steel structure of a framework 1 area of the project 1SS1 is hoisted in nine sections, a west side frame 1-3 is hoisted in three sections through an A-B shaft, an east side frame 1-3 is hoisted in three sections through a C-D shaft, and an elevator shaft is hoisted in three sections. And hoisting by adopting a DEMAG CC8800-1 type 1600-ton crawler crane. Adopt hoisting structure, application segmentation group frame framework hoist and mount, can reduce the recruitment volume, labour saving and time saving has conveniently operated moreover, has improved hoist and mount efficiency greatly.

The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides a nimble hoisting structure of coker steel structure module group which characterized in that: the lifting lug comprises a lifting lug, a first rib plate, a second rib plate, a third rib plate, a fourth rib plate, a fifth rib plate and a sixth rib plate;

2. The flexible coking unit steel structure module group hoisting structure of claim 1, characterized in that: the lifting lug comprises a lifting lug main plate and a lifting lug reinforcing plate, the lifting lug reinforcing plate is fixed on two sides of the lifting lug main body between the first rib plate and the second rib plate, and lifting holes are correspondingly formed in the lifting lug main plate and the lifting lug reinforcing plate.