Simple splicing connecting flange applied to petrochemical installation engineering

Abstract

The invention relates to the technical field of petrochemical industry, and discloses a simple splicing connecting flange applied to petrochemical installation engineering, including a fixed cylinder, the left and right sides of the fixed cylinder are provided with chute, the front inner wall of the chute is in a hollow state and The sleeve is fixedly connected, the back of the sleeve is attached with a splint, and the inner wall of the splint is inserted with a splint. The ends of the two splints away from the chute are fixedly connected with a connecting ring. Through the setting of the connecting ring, the connecting ring and the fixed The cylinder is designed to be in a separate state, so that the fixed cylinder can be spliced ​​with connecting rings of different sizes to meet the needs of use, improve adaptability and practicability. In addition, when connecting the fixed cylinder through the connecting ring, it needs to slide a certain distance in the chute The setting allows the user to compare the sizes conveniently when the connecting rings on the two pipes are close to each other, so that when the size does not match, the splicing operation can be stopped in time to replace the connecting rings, which improves the Work efficiency and convenience.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to a simple splicing connection flange applied to petrochemical installation engineering. Background technique [0002] Flange is otherwise known as flange flange or flange. Flanges are parts that are connected to each other between shafts and are used for connection between pipe ends; they are also useful for flanges on equipment inlets and outlets for connection between two equipments. In petrochemical installation projects, It is necessary to connect the pipelines through connecting flanges for the transportation of raw materials such as petroleum. [0003] The existing patent No. CN205371887U proposes a splicing flange, which includes a circular flange body, and the flange body is composed of three identical arc-shaped connecting pieces welded together, and each connecting piece is a part of the flange body One-third, a plurality of mounting holes are evenly pro...

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Problems solved by technology

[0003] The existing patent No. CN205371887U proposes a splicing flange, which includes a circular flange body, and the flange body is composed of three identical arc-shaped connecting pieces welded together, and each connecting piece is a part of the flange body One-third, a plurality of mounting holes are evenly processed on the connecting piece, and connecting notches and connecting protrusions are respectively processed on both ends of the connecting piece. The connecting notches and connecting protrusions have the same shape and cooperate with each other. The notch is a semicircular or square notch, which is welded by using split arc-shaped connecting pieces, and matching connecting notches and connecting protrusions are provided at the junction of every two adjacent connecting pieces. When inserting the connection protrusion into the connection gap, and then welding, the connection stability between the connection pieces is improved. This spliced ​​flange does not need to use large round steel turning, which reduces the waste of materials in the turning process. , and improve the production efficiency of the flange, which is convenient for transportation and installation on the construction site. It is an ideal flange. However, when the above-mentioned flange is used, it needs to be manually spliced ​​to the pipeline, which increases the operation steps of the pipeline connection. This leads to a reduction in the efficiency of pipeline connection. In addition, there are requirements for the use of flanges of different sizes in different positions of the pipeline. The above-mentioned flanges need to be connected to the pipeline by welding. The operation of desoldering is required, resulting in a significant reduction in work efficiency

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