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1. What are the components of a CNG dispenser?
1. A compressed natural gas dispenser is a specialized equipment that provides compressed natural gas fuel filling services to compressed natural gas vehicles and is equipped with 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 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. A pressure sensor is a device that outputs an electrical signal that can be processed based on pressure changes within the gas dispenser system. The control in sequence is based on the grouping of gas cylinde
What does 2.25/0.88L/min/cmf mean?
25 is the flow rate, which means 25 liters of cmf per minute. The Coriolis Mass Flow Meter (CMF) is a novel instrument that directly and precisely measures the mass flow rate of fluids.
. It is the unit of measurement for flow meter calibration. 0.88 is the value of cmf.3. What is a mass flow meter
1. What is a mass flow meter: A mass flow meter, abbreviated as MFM, is a precision sensor used to quickly and accurately measure the flow rate of process gases.
. The mass flowmeter mentioned here is mainly used for low pressure, low flow single or mixed gases, with low pressure generally below 1Mpa and a maximum of 3Mpa; The flow range is generally 0.1 sccm to 5000 slpm; Single gases such as common air, helium, argon, etc. require relative dryness and purity; For mixed gases, it is necessary to specify the type and proportion of gases. 2. What parameters can be obtained from a mass flow meter? The Yidu mass flow meter can accurately obtain five major parameters of gas: real-time temperature, pressure, operating flow rate, standard flow rate, and cumulative flow rate. The units of a mass flow meter are generally SLPM (liters per minute under standard conditions) and SCCM (milliliters per minute under standard conditions), both of which are volumetric flow units under standard conditions. The measurement scale is defined as 101.325KPa and 25 ℃. The composition of a mass flow meter: The Yidu laminar flow mass flow meter mainly consists of six parts: laminar flow components, pressure differential sensors,