Simple splicing type connecting flange applied to petrochemical installation engineering

Abstract

The invention relates to the technical field of petrochemical engineering, and discloses a simple splicing type connecting flange applied to petrochemical installation engineering. The connecting flange comprises a fixed cylinder, wherein chutes are formed in the left side and the right side of the fixed cylinder; the inner walls of the front surfaces of the chutes are in a hollow state and are fixedly connected with sleeves; clamping plates are attached to the back surfaces of the sleeves; inserting plates are sleeved on the inner walls of the clamping plates; and connecting rings are fixedly connected to the ends, away from the chutes, of the two inserting plates. By arranging the connecting rings, the connecting rings and the fixed cylinder are designed to be in a separated state, so that the fixed cylinder can be spliced with the connecting rings of different sizes to meet the use requirement, and the adaptability and practicability are improved; and in addition, through the arrangement that the connecting rings need to slide for a certain distance in the chutes when being connected to the fixed cylinder, in the process that the connecting rings on two pipelines get close to each other, a user can conveniently compare the sizes, so that when the sizes are not matched, the splicing operation can be stopped in time to replace the connecting rings, and the working efficiency and the convenience are improved.

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...

AI Technical Summary

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

Images