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『Plug in liquid turbine 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)
1. How to choose a plug-in flowmeter?
How to choose a flow meter? Plug in flow meters play a key role in measuring large-scale water output. The price of plug-in flow meters is only one to ten times that of full tube flow meters. In addition, they are lightweight, have low pressure loss, and are easy to install and maintain, which are major advantages of plug-in flow meters. Therefore, in places where the accuracy is too low, insertion becomes a popular method. In large-scale pipeline flow meters, due to the wide and low water flow rate, fine sand, stains, etc. are easily accumulated on the surface of the instrument panel. Therefore, plug-in flow meters are often equipped with facility valves to maintain continuous flow conditions, and the instrument panel is removed for maintenance and inspection, thereby improving the reliability of the detection system. Construction of plug-in flowmeter. Plug in flow meters come in both flowmeter and radial flowmeter types. The inserted vortex street, booster, and electromagnetic flowmeter belong to the point flowmeter type. Differential pressure type averaging tube flowmeter, fast heating type averaging tube flowmeter, etc. are radial flow velocity type. Although there are various principles of plug-in flow meters, their structures have their own advantages. The point flowmeter type flowmeter consists of a measuring head, an insertion rod, an insertion organization, a converter, and a dashboard body. The differential pressure averaging tube flowmeter includes inspection components (averaging tube), valves, insertion devices, and pressure measuring equipment.
1. Several types of plug-in flow meters
(1) Plug in turbine flow meters.
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(2) Differential pressure averaging tube flowmeter. This type of flowmeter is commonly used for measuring large-scale water output. The key reasons are simple construction, low price, and convenient maintenance. As it belongs to the radial flowmeter type, if the length of the instrument panel insertion rod matches the pipe diameter, the instrument panel reading will be less affected by the water flow outside the pipe. When installing the averaging tube, it is important to note that there should be no vapor stored in the pressure tube.
(3) Plug in vortex flowmeter. The accuracy of the plug-in vortex flowmeter itself reaches ± 1%, and its dirtiness performance is better than that of the plug-in turbine flowmeter. When there is a small amount of fine sand in the measured fluid mechanics, it is not easy to cause common faults like the averaging tube. However, due to its measurement principle, when used to measure the water flow rate, the lower limit of the water flow rate that can be measured is only 0.3m/s. Therefore, it cannot be used when measuring the lower limit of the water flow rate of the other half.
(4) Plug in electromagnetic flowmeter. Compared with other plug-in flow meters, using a plug-in electromagnetic flow