Steel grating mounting technology for offshore booster station

Abstract

The invention relates to a steel grating mounting technology for an offshore booster station. The steel grating mounting technology comprises the specific steps that S1, spot-welding a plurality of reinforcing rib blocks on an inner side of a through hole in an extending direction of the through hole; S2, spraying an anti-rust paint to surfaces of multiple L-shaped angle steels for anti-corrosion treatment; S3, arranging a special angle steel arrangement mechanism between the two corresponding reinforcing rib blocks and positioning the special angle steel arrangement mechanism through a gradienter; S4, enabling two lead screws to horizontally penetrate through the reinforcing rib blocks and the multiple L-shaped angle steels in the reinforcing rib blocks; S5, resetting and placing the special angle steel arrangement mechanism between the other two corresponding reinforcing rib blocks; and S6, placing saddle clamps between the adjacent L-shaped angle steels for connection. Advantages are as follows: the L-shaped angle steels are fixed through a clamping mode of the L-shaped angle steels and the reinforcing rib blocks and fixing of the lead screws, structural strength of the angle steels, a platform and a connecting position of the angle steels and the platform is guaranteed, and stress balance of each angle steel is guaranteed.

Description

Technical field: [0001] The invention relates to the field of offshore booster stations, in particular to a steel grid installation process for offshore booster stations. Background technique: [0002] As the power gathering center of the offshore wind farm, the offshore step-up substation is the key facility for power transmission and transformation, and also the key to the success of the entire offshore wind farm. Since the offshore step-up station is relatively complex and has a large total weight, it is generally constructed on land as a whole, and then transported to the sea by an engineering ship for integrated installation. In the machinery space of the offshore booster station, steel grids are used on platforms that need to observe the working status of equipment and valves below, and platforms that require up and down airflow and subsequent maintenance. At present, in the offshore field, steel grid platforms replace steel plate platforms. increasingly widely used. ...

AI Technical Summary

Problems solved by technology

[0003] At present, when installing the steel grid on the platform of the booster station, there are the following defects: 1. Weld the angle steel above the platform and then put the steel grid into the angle steel. There is a height difference between the steel grid and the platform. 2. Weld the angle steel around the bottom of the platform hole, and then put the steel grid into multiple angle steels. This method is relatively common, but the corrosion effect of the extreme environment at sea on the angle steel is often ignored. The pits caused by corrosion on the angle steel tend to concentrate the stress of the steel structure and weaken the bonding strength of the grain parts just now. The most important thing is that the angle steel structure is small. The angle steel and the platform are fully welded, and the force is concentrated on the platform when the angle steel is welded, so the platform is concentrated in the angle steel welding place, and is affected by the thermal stress during welding, so that the structure of the angle steel, the platform and the connection between the angle steel and the platform The strength is weak. Once the angle steel is corroded by sea breeze and sea water, the bearing capacity of the steel grid and the later personnel will be weakened. Therefore, this steel grid installation process is only for the long-term use of the offshore booster station, and there is a great safety hazard. ;3. When installing large-area steel gratings on a large platform, it is extremely labor intensive to weld the angle steels to the platform one by one, and the corresponding angle steels must be in sequence, and the levelness measurement must be carried out before Welding, the workload is huge, and the accuracy of welding alignment is poor, which ensures that the force of each angle steel is unbalanced in the later stage, and there are potential safety hazards

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