Online trepanning device and method free of gas stopping

Abstract

The invention provides an online trepanning device and method free of gas stopping. The online trepanning device comprises a welding flange, a first valve and a trepanning component. One end of the welding flange is suitable for being welded to a pipeline. One end of the first pipeline is fixed to the other end of the welding flange. The trepanning component is mounted at the other end of the first valve, and the trepanning component and the first valve are kept sealed. A drill bit of the trepanning component is suitable for penetrating the first valve and the welding flange. The invention further discloses a mounting method of an in-situ analyzer with the trepanning method. The online trepanning device and method have the beneficial effect that mounting is convenient and safe.

Description

technical field [0001] The invention relates to online drilling, in particular to an online drilling device and method between two parts. Background technique [0002] The semiconductor laser gas analysis instrument is mainly composed of a transmitting unit and a receiving unit. In practical applications, the transmitting unit and the receiving unit are respectively installed at both ends of the measurement area, and fixed on the field device through the connecting unit. [0003] During on-site installation, it is necessary to close the gas supply in the pipeline and replace the gas in the pipeline. Finally, install the transmitting unit and receiving unit on one side of the on-site measurement area, and the laser emitted by the radiation is guided to the measurement area. After passing through the measurement area Captured by a receiving unit installed on the other side of the field measurement area. This installation method has many disadvantages, such as [0004] 1. Pr...

AI Technical Summary

Problems solved by technology

[0004] 1. Production stoppage: when the gas is replaced, the valves at both ends of the pipeline are closed and the gas cannot be supplied, resulting in a production stoppage

[0005] 2. Gas waste: Gas replacement is to replace the gas in the pipeline with air, and the replaced gas is often discharged directly

Cause gas waste and environmental pollution

[0006] 3. Long time-consuming: It often takes a long time to replace the gas in the pipeline, during this period, production needs to be stopped

[0007] 4. Insufficient replacement leads to pipeline explosion or suffocation risk

[0010] 1. Gas leakage: The gas in the pipeline is not replaced, and there may be a large amount of gas leakage in the pipeline during installation, resulting in gas waste and environmental pollution

[0011] 2. Personnel suffocation or poisoning: Leaked gas may cause suffocation or poisoning of on-site operators

[0012] 3. Pipeline explosion: If the leaked gas reaches the explosion condition in the air, it may cause the explosion of the pipeline on site, causing casualties and property losses

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