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What parameters should be asked when purchasing a vortex flowmeter?
Parameters of Heshunda vortex flowmeter ◆ Measurement medium: gas, liquid, vapor ◆ Connection method: flange card type, flange type, insertion type ◆ Diameter specification: flange card type caliber selection: 25, 32, 50, 80, 10 ◆ Flange connection caliber selection: 100, 150, 200 ABGUG vortex flowmeter working principle diagram ◆ Flow measurement range Normal measurement flow rate range Reynolds number 1.5 × 104~4 × 106; Gas velocity of 5-50m/s; The normal measurement flow range for liquid is 0.5-7m/s. The measurement ranges for liquid and gas flow are shown in Table 2; The steam flow range is shown in Table 3. The measurement accuracy is 1.0 level and 1.5 level. The temperature of the measured medium is normal temperature -25 ℃~100 ℃. The high temperature is -25 ℃~150 ℃ -25 ℃~250 ℃. The output signal pulse voltage output clear signal high level is 8-10V and low level is 0.7-1.3V. The pulse duty cycle is about 50%, and the transmission distance is 100m. The pulse current remote transmission signal is 4-20mA, and the transmission distance is 1000m. The instrument is used in an environment with temperature of -25 ℃~+55 ℃ and humidity of 5-90% RH50 ℃. The material is stainless steel or aluminum alloy. The power supply is DC24V or lithium battery 3.6V. The explosion-proof level is intrinsic safety type iaIIbT3-T6 protection and other IP65 vortex flowmeter. Karmans vortex street principle is a volumetric flowmeter used to measure the volumetric flow rate, standard condition volumetric flow rate, or mass flow rate of gases, vapors, or liquids. And it can be used as a flow transmitter in automation control systems. Shaanxi Weinan and Shunda Vortex
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2. How to choose a gas vortex flow meter?
The selection of vortex flowmeter mainly confirms the following parameter requirements:
1. Measurement medium for cavity bending.
. Turbine flowmeter is a type of velocity flowmeter that utilizes the principle of Karman vortex street. When the medium passes through the vortex generator, small vortices are formed behind it. The number of vortices can be converted into the flow velocity of the medium, which in turn can be converted into the flow rate of the medium. Its principle determines the type of measuring medium, which can be liquid, gas, or vapor. At present, the vast majority of industrial applications, such as nitrogen, compressed air, steam, thermal oil, etc., mostly use vortex flowmeters for measurement.2、 Pipeline diameter. Vortex flow meters can be installed in different ways, including pipeline installation and plug-in installation. For pipeline type flow meters, the diameter of the pipeline is the same as most other flow meters. The smaller one is DN15, while the larger one can reach DN300. If a larger caliber is required, plug-in installation can be chosen. The conventional caliber range can reach up to DN2000, and calibers above DN2000 will be supplied according to the agreement.
3、 Measurement accuracy. The accuracy of vortex flowmeter also has several levels, and it is classified according to the measuring medium. The pipeline type vortex flowmeter can achieve a measurement accuracy of 1.0 level for liquids and 1.5 level for gases. If it is an inserted vortex flowmeter, the accuracy can reach levels 1.5 and 2.5.
4、 Medium temperature. Generally speaking, it is divided into three ranges: room temperature, me
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