Bozhou Steam Prepaid Flow Meter, Saturated Steam Vortex Flow Meter Instructions for Use

Description :

Qingdao Hesheng CompanyBozhou Steam Prepaid Flow Meter, Saturated Steam Vortex Flow Meter Instructions for UseTechnical Specifications:

　　Accuracy level 1.0; 1.5 level 0.5 level (liquid) output signal square wave: high level ≥ 6V, low level<1V; Standard current 4-20mA supply voltage+12VDC~24VDC resistance coefficient Cd ≤ 2.4 explosion-proof grade ExdIICT6 environmental conditions temperature -40~55 ℃, relative humidity 5%~90%, atmospheric pressure 86~106kPa flange standardization Ministry of Chemical Industry standard mechanical department standard electrical interface M20 * 1.5 internal thread (NPT thread needs to be customized)

　　Bozhou Steam Prepaid Flow Meter, Saturated Steam Vortex Flow Meter Usage Instructions Product Technical Features:

　　When measuring volumetric flow rate with a vortex flowmeter, no compensation is required. The signal output by the vortex flowmeter is actually linearly related to the flow rate, that is, directly proportional to the volumetric flow rate. The purpose of pressure and temperature compensation is to obtain the density of the fluid, which is multiplied by the volumetric flow rate to obtain the mass flow rate. If measuring the volumetric flow rate of a gas, compensation is not required.

　　Bozhou Steam Prepaid Flow Meter, Saturated Steam Vortex Flow Meter Instructions for Use: Small pressure loss, wide application range, can measure steam, gas, and liquid flow rates

　　Using a DN50 vortex flowmeter to measure the flow rate of combustible gases, if the large flow rate Qmax in the pipeline is 200m3/h, the pressure loss of the sensor is: △ P=1.08 × 10-6 ρ v2 (kPa)=0.605 KPa

　　Within a certain Reynolds number range, the flow characteristics are not affected by fluid pressure, temperature, viscosity, density, or composition, but only by the shape and size of the vortex generator.

　　By 1950, thermal sensitive (including hot wire detection method and thermistor detection method) and ultrasonic vortex flowmeters had been successfully developed in China. Two years later, stress type vortex flowmeters were successively launched, followed by strain type and vibration type vortex flowmeters, which developed towards integration, intelligence, and multi parameter detection. Fieldbus technology was introduced into the field of vortex flowmeter measurement, and the fieldbus intelligent vortex flowmeter will become one of the important instruments in the fieldbus system (FCS)

　　Qingdao HeshengBozhou Steam Prepaid Flow Meter, Saturated Steam Vortex Flow Meter Instructions for UseFunction: 1. The body also integrates temperature and pressure compensation functions, which can measure the standard volume flow rate or standard mass flow rate of fluids. 2. Fully intelligent and digital circuit design, capable of automatically compensating for measured fluid density or standard condition volume calculation. 3. The new digital filtering and correction functions make flow measurement more reliable. 4. The battery powered type can work continuously for more than two years without the need for an external power source. 5. New dot matrix Chinese character LCD display, more convenient to use and operate.

　　6. It is generally not recommended to install sensors upside down in horizontal pipelines for special equipment measuring instruments. This installation method is not suitable for measuring general gases and superheated steam. Can be used to measure saturated steam, suitable for measuring high-temperature liquids or situations that require frequent pipeline cleaning. The structure is simple and sturdy, with no movable parts, high reliability, and easy to use and maintain

Steam prepaid flowmeterRequirements for installation of straight pipe sections:

　　1. The seismic vortex flowmeter has certain requirements for the upstream and downstream straight pipe sections at the installation point, otherwise it will affect the measurement accuracy.

　　2. The upstream of the Binzhou flowmeter installation point should have an equal diameter straight pipe section of not less than 15D (D is the diameter of the pipeline), and the downstream should have an equal diameter straight pipe section of not less than 5D.

　　3. There is a gradually expanding pipe upstream of the installation point of the vortex flowmeter in the steel plant. The upstream should have an equal diameter straight pipe section of not less than 18D (D is the diameter of the pipeline), and the downstream should have an equal diameter straight pipe section of not less than 5D

　　4. There is a 90 ° elbow or downward joint upstream of the installation point of the flow meter in Liaocheng. The flow meter should have an equal diameter straight pipe section of not less than 20D upstream and an equal diameter straight pipe section of not less than 5D downstream.

　　5. There is a 90 ° elbow on the same plane upstream of the installation point of the vortex metering station. The upstream of the flowmeter should have an equal diameter section of not less than 25D, and the downstream should have an equal diameter straight pipe section of not less than 5D.

Bozhou Steam Prepaid Flow Meter, Saturated Steam Vortex Flow Meter Instructions for UseWithin a certain Reynolds number range, the flow characteristics are not affected by fluid pressure, temperature, viscosity, density, or composition, but are only related to the shape and size of the vortex generator. The protection level is IP65, the electrical interface is M20 × 1.5, the ambient temperature is -35 ℃~60 ℃, and the relative humidity is 5-95%. Strong electrical equipment, high-frequency equipment, and strong switching power supply equipment should be avoided as much as possible. The power supply of the instrument should be separated from these devices as much as possible, and widely used for measuring the flow rate of superheated steam, saturated steam, compressed air, general gases, and liquids. Since the 1990s, the fundamental work of vortex flowmeter technology has developed to a deeper level, and research and experimental work on dry calibration has been carried out, and achievements have been made

　　Qingdao Hesheng Zhiyuan Automation System Co., Ltd

　　189 Hui Xin 5483 Same number 1481

　　Q：3438-5007-67

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• Steam prepaid flowmeter