What does FL0wMETER mean in Chinese for air mass flow meter

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1. What are the components of a CNG dispenser?

1. A compressed natural gas dispenser provides compressed natural gas fuel filling services for compressed natural gas vehicles, and is equipped with specialized equipment such as metering and pricing devices.. It consists of electronic control devices, filters, one-way valves, solenoid valves, mass flow meters, pressure transmitters, break valves, gun barrels, etc. The following are the main components: a mass flow meter is a measuring instrument that can directly and accurately measure the mass of fluid flowing through it. It is not affected by changes in pressure, temperature, and viscosity during its working process. The solenoid valve for dispenser on the gas dispenser is controlled by an electrical signal to open and close, thereby controlling the opening and closing of the gas circuit of the gas dispenser. 4. Break away the safety slag agglomeration device on the coupling valve of the gas dispenser. Under the rated pull-out force, it can be disconnected into two sections and ensure automatic sealing of the opened sections. At the same time, it can be reconnected to ensure the normal use of the gas dispenser. The pressure protection device on the safety valve gas dispenser. When the pressure inside the gas dispenser exceeds the normal working pressure P (i.e. the set opening pressure of the safety valve), the safety valve opens to relieve pressure; When the pressure drops below the P value, it will automatically shut down to ensure that the gas dispenser can work normally. The pressure sensor of the 6 pressure transmitters is installed on the bridge to output electrical signals that can be processed according to the pressure changes in the gas dispenser

2. What are the consequences if the flow rate through the manual metering valve exceeds the maximum flow rate of the valve? The word measurement can be understood as calibrating flow rate or daily measurement. There are multiple options based on the approximate range of gas flow rate and accuracy requirements: 1. Small flow rates below 1 L/min can be measured/calibrated using the most basic but accurate soap bubble flowmeter. It is particularly suitable for situations where the back pressure is zero. 2. There are different types of rotameters available for flow rates ranging from 0.01 to 100 L/min, and the accuracy is still acceptable. 3. Mass Flow Meter (MFM) is available for flow rates ranging from 0.01 to 1000 L/min, with high accuracy. 4. The flow rate ranges from 1-100 Nm3/h and can be measured using a critical Venturi nozzle (which is also one of the standard methods for measuring gas flow), with high accuracy. Standard English documents can be found online. 5. Larger industrial flow rates are measured using orifice pressure differential flow meters, vortex street flow meters, etc., with acceptable accuracy. Of course, the above traffic ranges are roughly divided. Based on the "steel cylinder" you mentioned earlier, I understand that you want to calibrate the flow curve of the measuring valve at different scales. I estimate that the flow rate should not exceed 200 L/min (at this flow rate, a 51 liter nitrogen cylinder can be emptied in 1 hour). A mass flow meter can be used to calibr

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