Separated large-diameter sewage flowmeter

NegotiableUpdate on 12/31

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Nature of the Manufacturer: Producers

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Overview

The main components of the separated large-diameter sewage flowmeter are the measuring tube, electrode, excitation coil, iron core and yoke, and housing. The measuring tube of the sensor is a non-magnetic alloy short tube lined with insulating material, with a diameter of D. Two electrodes are fixed on the measuring tube through the tube wall along the diameter direction, and their electrode heads are basically flush with the inner surface of the lining.

Product Details

Separated large-diameter sewage flowmeterThe main components are measuring tube, electrode, excitation coil, iron core and yoke, and shell. The measuring tube of the sensor is a non-magnetic alloy short tube lined with insulating material, with a diameter of D. Two electrodes are fixed on the measuring tube through the tube wall along the diameter direction, and their electrode heads are basically flush with the inner surface of the lining. When the excitation coil is excited by bidirectional square wave pulses, a working magnetic field with a magnetic flux density of B is generated in the direction perpendicular to the axis of the measuring tube. At this point, if a fluid with a certain conductivity flows through the measuring tube at an average flow velocity V, the cutting magnetic field lines will induce an electromotive force E. The electromotive force E is proportional to the product of the magnetic flux density B, the inner diameter D of the measuring tube, and the average flow velocity V, that is, E ∝ BVD. The electromotive force E (flow signal) is detected by the electrode and sent to the converter through a cable. The converter amplifies and processes the flow signal to display the flow rate and total amount, and can output signals such as pulses and analog currents. The converter of LDG type electromagnetic flowmeter is an intelligent instrument with Chinese character LCD display.

Separated large-diameter sewage flowmeterMain technical parameters:
◆ Technical data of the whole machine and sensors

execution standard	JB/T9248-1999
Nominal Diameter	3. 6, 10, 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000
Zui high flow rate	15m/s
accuracy	± 0.5% of the indicated value (flow rate 0.8m/s); ± 4mm/s (flow velocity<0.8m/s)
Fluid conductivity	≥5uS/cm，
Nominal Pressure	1.6 MPa	1.6 MPa	1.0 MPa	0.6 MPa	6.3, 10 MPa, etc
	DN3～DN150	DN15～DN600	DN200～DN1000	DN700～DN3000	Special Orders
Lining material	Polytetrafluoroethylene, chloroprene rubber, polyurethane, perfluoroalkoxy (F46), mesh PFA, PO
ambient temperature	sensor	-25℃～+60℃
	Converter and integrated model	-10℃～+60℃
Zui high fluid temperature	integrated type	70℃
	Separated type	Polychloroprene rubber lining		80℃; 120 ℃ (specify when ordering)
		Polyurethane lining		80℃
		PTFE lining		100℃; 150 ℃ (specify when ordering)
		Perfluoroethylene propylene (F46)
		Mesh PFA
Signal electrodes and Grounding electrode material	Stainless steel 0Cr18Ni12Mo2Ti, Hastelloy C, Hastelloy B, titanium, tantalum, platinum/iridium alloy, stainless steel coated with tungsten carbide
Electrode mechanism	DN80～DN3000
Connecting flange material	carbon steel
Connecting ring material	Stainless steel 1Cr18Ni9Ti
Shell protection	ND15-DN3000 separated rubber or polyurethane lined sensor			IP65 or IP68
	Integrated type (circular converter)			IP67
	Other sensors and separate converters			IP65
Explosion proof instrument Explosion proof mark	Ex deiaⅡCT4	IP65、DN15～DN600
Distance (separated type)	Separate cable manufacturers provide a standard length of 10m, and the distance between the converter and the sensor is generally not more than 100m. If it exceeds 100m

The sewage flowmeter has a simple structure, is sturdy and reliable, and has a long service life.
There are no moving parts or resistance parts inside the measuring tube, no pressure loss, no blockage, reliable measurement, strong anti-interference ability, small size, light weight, easy installation, small maintenance, wide measurement range, and the measurement is not affected by changes in fluid temperature, density, pressure, viscosity, conductivity, etc. It can be retrofitted and installed on old pipelines, with simple construction and installation and small engineering quantity. Compared to general electromagnetic flow meters, it has lower costs and installation expenses, making it particularly suitable for measuring flow in large and medium-sized pipelines. Adopting advanced processing technology, solid-state packaging, long lifespan, the instrument has good measurement accuracy and stability.