Metal tube flow meter scale basic principle and common types

Abstract: the basic principle of metal tube float meter scale and common types of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Metal pipe flow meter is mainly used for small and medium caliber flow measurement, can measure liquid, gas, steam, etc. , which has been widely applied. 1, the metal flow meter works: according to the metal tube float in the height of the conical tube to measure flow, make use of the stream. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a metal tube flow meter scale basic principle and common types article details. Metal pipe flow meter is mainly used for small and medium caliber flow measurement, can measure liquid, gas, steam, etc. , which has been widely applied. 1, metal tube flow meter work principle: on the basis of metal tube float in the height of the conical tube to measure the flow rate, the use of fluid through the float and tube wall at the exit of the clearance between the differential pressure to balance the weight of the float, the greater the flow, float is the higher, make its have larger ring gap area, namely ring gap area change with flow, so generally called area method. It is more right for medium and small flow measurement, a match with electricity far eastone or gas remote transmitter type. 2, the classification of the metal tube float flowmeter: ( 1) Can be divided by taper pipe material classification: transparent material taper pipe, metal cone tube. (1) transparent tapered tube tube flow meter: transparent tapered tube material with glass tube, transparent engineering plastics such as polystyrene (PVC, polycarbonate, organic glass, etc. Zui much with many of them are glass tube, but easily broken. And engineering plastic tube is not easy to broken, and some corrosion media such as acid and alkali corrosion. Transparent 15 ~ 40 mm diameter of the tapered tube flow meter, flow dividing directly on taper pipe outside wall, or beside the taper pipe and dividing rod, the cone tube with smooth surface and a cone with guide rib reinforcement ( Or plane) Two kinds. Float free to move in the cone tube, or under the cone tube reinforced edges oriented mobile, a big smooth surface lining instrument with guide rod guide. (2) metal taper pipe flow meter: metal tube taper pipe flow meter diameter 15 ~ 40 mm, through the magnetic coupling, to convert the displacement of the float to the casing outside the part. Compared with the transparent conical tube flow meter. Can be used for the high medium temperature and pressure, and not easily broken. In addition, there are several other transparent float flowmeter structure, such as transparent straight pipe flow meter is transparent tapered tube deformation structure of flow meter, flow testing device is composed of orifice plate and conical floating plug. Metal tube taper pipe flow meter and other types or deformation structures. Including direct instructions through the transparent straight pipe and floating plug directly observed read float position; Horizontal type can be installed in horizontal pipe; Direct type and typical structure of circulation of right Angle in a different direction, don't need to change flow direction, can be connected directly to the vertical pipes, installation is convenient; Floating plug type orifice to floating plug taper pipe orifice instead of rotor, change the flow as long as the switch specifications for different floating plug taper, more convenient. ( 2) Classified by flowmeter features: can be divided into the site instructions, pneumatic remote signal output, electric remote signal output, alarm, etc. Transparent tube type flow meter are instructions given. Sometimes with a proximity switch, alarm signal output upper and lower limits. Far eastone conversion part of the signal output type instrument will be converted to float displacement current or pneumatic analog signal output, respectively as gas and electricity far far eastone float flowmeter flow meter. ( 3) Can be divided by classification and pipe connection mode: hose connection, flange connection, threaded connections. Transparent tube flow meter three connection methods, including hose connection is often used in diameter 10 mm below the instrument and low working pressure; Threaded connections are often used to diameter of 40 mm below the instrument, use range is not wide; Flange connection for diameter 15 ~ 100 mm instrument, application zui to normal. Metal pipe flow meter is usually flange connection, individual model with threaded connections. ( 4) According to the current body classification: can be divided into liquid, gas, steam. Most of the flow meter to the same instrument can also measurable liquid gas. Measuring the steam can only use specially designed tube flow meter, or add additional components on standard instrument, such as increased with liquid damping parts, heat sink and the instructions of conversion joint addition heat sink and so on. ( 5) Classification: according to the use, jacketed heat preservation can be divided into basic type, explosion-proof type, corrosion, wind flow. The base type zui is widely applied. Jacket type insulation used in pipeline temperature significantly higher than ( Or below) The occasion of the environment temperature. When used in explosive gas or dust electricity far eastone float flowmeter using explosion-proof type. At present, the domestic has flameproof design structure and design of intrinsically safe explosion-proof structure type. In contact with the medium corrosion type flow meter and ptfe structure and float with engineering plastic. Drift current flow is small, the air is 20 ~ 3000 l/h, water is 0. 3 ~ 100 l/h, precision demand is not high.

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