Glass fiber reinforced plastic pipeline flange opening connecting structure

Abstract

The invention relates to the technical field of pipeline connecting equipment, in particular to a glass fiber reinforced plastic pipeline flange opening connecting structure which is characterized in that a flange opening is formed in a pipeline, the flange opening is connected with a cover body through a locking bolt, the periphery of the flange opening is sleeved with a dustproof cover, and a nut tightening mechanism is arranged in the dustproof cover; the nut loosening and tightening mechanism comprises a buckle head, a loosening and tightening motor, a telescopic air cylinder and an adjusting motor, a rotating shaft of the adjusting motor is slidably provided with a rotating disc, the telescopic end of the telescopic air cylinder is rotatably connected to the rotating disc, a supporting arm of the rotating disc is connected with the loosening and tightening motor, and the loosening and tightening motor is connected with the buckle head. The buckle head can be connected with a nut of the locking bolt in a buckled mode. The device can replace manual work to check the connection condition of the flange opening; the nuts are tightened and tightened in sequence, connection smoothness is guaranteed, it is guaranteed that the locking screws are disassembled smoothly in a labor-saving and time-saving mode in the later period, manual operation is not needed, the construction difficulty is reduced, disassembling is rapid and safe, and the disassembling and assembling efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of pipeline connection equipment, in particular to a FRP pipeline flange connection structure. Background technique [0002] Industrial waste gas refers to the general term for various pollutant-containing gases discharged into the air generated during the fuel combustion and production process in the factory area of ​​the enterprise. These exhaust gases include carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (fog), lead and mercury, beryllium compounds, soot and productive dust, which are discharged into the atmosphere and pollute the air. [0003] The industrial exhaust gas will corrode the industrial pipeline, which requires regular maintenance and replacement. In order to facilitate connection or maintenance, various flange interfaces (or manholes, maintenance openings, etc.) will be set on the pipeline. It is blo...

AI Technical Summary

Problems solved by technology

[0004] But the problem that comes with it is that the maintenance cycle of industrial production is long, basically more than half a year. With the long-term exposure of the flange mouth, wind and rain and other environmental influences, the connecting bolts are easy to rust and accumulate. Due to the dust, the thread section has been deformed, corroded, and air leaked during the later maintenance. It is no longer possible to unfix it by rotating the nut. It can only be beaten forcibly, or even removed by sawing or gas welding. It is difficult to disassemble and assemble, and it is a waste of time.

Secondly, because most of the pipelines are circulating gas, some of which are dangerous gases such as gas, at this time, the bolts cannot be disassembled by knocking, electric welding, etc., which are easy to catch fire, which further limits the bolt removal methods and increases the difficulty of construction. Bolts become a dangerous operation instead, which greatly lengthens the replacement cycle

And for those equipments that are only out of production for a few hours, the replacement operation cannot be performed directly, which affects the normal use of the equipment

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