Torch gas flowmeter| airflow meter

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1. Introduction to Gas Mass Flow Meter

Currently, the gas flow meters used in China have the problem of a small range ratio, and the flow below the lower limit of the range is basically lost. However, this is unacceptable in some fields, especially in gas and other trade settlement situations. The hot gas mass flowmeter has successfully solved this problem. 1. Characteristics: 2 Usage: This product is widely used in industries such as steel plants, coking plants, petroleum, chemical, thermal, medical, thermal power plants, and environmental protection. Can be carried out: ● Measurement of gas flow rate in steel plants and coking plants ● Measurement of boiler air flow rate and secondary air volume ● Measurement of flue gas flow rate discharged from chimneys ● Measurement of waterfall gas flow rate in water treatment ● Measurement of gas flow rate in cement, cigarette, and glass production facilities ● Measurement of compressed air flow rate ● Measurement of gas flow rate in natural gas, coal gas, liquefied gas, torch gas, hydrogen, and other gases

2. What regulations require the installation of flow meters in torch manifolds

Currently, there is no clear national regulatory standard that requires the installation of flow meters in 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 worki Torch gas flowmeter

ng 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 the 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

Torch gas flowmeter

1. Introduction to Gas Mass Flow Meter

2. What regulations require the installation of flow meters in torch manifolds

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