Torch gas flowmeter

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1. What regulations require the installation of flow meters on the torch manifold? Currently, there is no clear national regulatory standard that mandates the installation of flow meters on torch manifolds. However, according to industry practice and safety requirements, installing flow meters is an important technical measure to ensure safe and stable operation. 1. The core reason for installing a flow meter for combustion control: In an active air supply ground flare system, a gas flow meter is installed in the flare gas inlet pipeline to monitor the gas flow entering the combustion chamber in real time. Automatically control the start stop and working intensity of the blower based on flow data to ensure sufficient oxygen in the combustion chamber and achieve full combustion of the torch gas. Safety guarantee: In order to prevent air from flowing back into the torch system and causing internal explosion, a fixed blowing facility with a flow meter is usually installed at the farthest upstream of the torch main pipe. Accurately controlling the flow rate of purge gas (such as nitrogen hopper with grip) through a flow meter, forming an effective seal and blocking air backflow. Although there is no mandatory national standard, many engineering designs follow international standards such as API, ISO, and internal specifications of petrochemical enterprises. These standards generally include flow monitoring as part of the safety interlock system, such as triggering an alarm or automatically taking safety measures when the gas flow rate is below or above the set value

3. Key parameters for flow meter selection are applicable to the flow meter of the flare manifold, with particular attention paid to: range: covering t

he possible flow fluctuation range of the flare gas, from the extremely small purge gas flow rate to the maximum flow rate during accident discharge. Medium characteristics: It needs to be compatible with the components of torch gas, which may include hydrogen, hydrocarbon compounds, and possible small droplets or particles. Explosion proof certification: Products with corresponding explosion-proof levels (such as Ex d, Air Quality Ex ia) must be selected to meet the requirements for use in hazardous areas. Accuracy and response speed: Flow meters used for safety interlocks usually require high response speed and reliability, and the accuracy requirements depend on the specific control purpose.

2. What is the specific operation process for igniting a torch explosion?

Torch ground explosion ignition is a critical operation used for the first operation or long-term shutdown of a torch, involving strict safety checks, process replacement, and accurate ignition steps. The core is to ensure that the system is oxygen free, fluid free, and has stable pressure to prevent backfire and explosion. 1. Conduct a comprehensive inspection of the high-pressure, low-pressure, and constant light gas systems, as well as the acid gas process, and close all control valves. Debug the constant light igniter to ensure flexibility and usability, and check whether the temperature gauge, pressure gauge, liquid level gauge, monitoring and flame arrester are normal. Confirm that there is no liquid accumulation in the ignition pipeline, and if necessary, discharge it from the discharge outlet. At the same time, verify that the flowmeter and pressure reducing valve are working properly, and that the pressure of the instrument gas and f

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