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『Zhejiang Cangnan flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
What type of gas meter is this? I didnt see the mechanical table below. It is estimated that the turbine flowmeter produced by Zhejiang Cangnan Company... If the gas meter is equipped with a gas surge valve, you can check if there are any problems with the pressure sensor and temperature sensor. Generally, in gas companies, only simple collapse and single series testing are carried out for turbine gauges. Sending it to a qualified inspection unit for testing is very expensive... The correction device of this watch is adjustable. Communicate with the people from the gas company. 2. Please advise on the selection of a natural gas flow meter..
Firstly, when selecting a flow meter, it is necessary to replace the standard cubic meter with a volumetric cubic meter, that is, convert the standard cubic meter flow rate to a volumetric flow rate. Assuming that the flow rate is 500m3/h and the standard cubic meter is 500Nm3/h, that is, 500Nm3/h is measured before pressure regulation. The pressure before pressure regulation is calculated at 0.4MPa, which is a gauge pressure of 4bar, an absolute pressure of 5bar, and a volumetric flow rate of 500/5=100m3/h. The flow rates marked on the flow meter selection table are all volumetric flow rates. Therefore, you can check the table according to 100 cubic meters, and the specifications larger than 100 cubic meters can be used. The answer is that according to this working condition, you need to choose a Roots meter with G100 specification, usually DN80, and a volumetric flow rate of 160. Fang, meet your requirements at 0.4MPa The flow rate is 500 standard cubic meters (with a volume flow rate of 100 cubic meters), but you also need to pay attention to whether the pressur
3. How to calibrate a flowmeter (split/integrated volume correction instrument)? The instrument calibration of flow meters (split/integrated volume correction instruments) requires calibration of pressure, temperature, and flow modules according to the equipment type (split or integrated) and specific technical parameters to ensure accurate sensor data and meet calculation requirements. The following is the specific calibration process:
1. Calibration of split volume correction instrument (Elster EK220/230/260, ITRON CORUS) Pressure calibration technical requirements: calibration range of 0.5-4MPa (absolute pressure), uncertainty level of 0.1, only verifying 3 points of the upward stroke (such as 0.5MPa, 2MPa, 4MPa). Process: Confirm interface type (M141.5 or M201.5, EK series requires confirmation of sealing type). Connect a standard pressure source (such as a high-precision pressure gauge) to the calibrated equipment, apply pressure point by point, and record the displayed value of the equipment. Compare the standard value with the equipment value, calculate the error and adjust it to the allowable range. Limitation: Up to 3 devices can be calibrated at a time. Temperature calibration technical requirements: Calibration points are -10 ℃, 30 ℃, and 60 ℃, and the temperature is controlled using a constant temperature bath. Process: Insert the device temperature probe into the constant temperature bath, wait for the temperature to stabilize, and then read the device display value. Compare the standard thermometer (installed o