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Description:
SP-LDE seriesCorrosion resistant sulfuric acid flowmeter, 98% concentrated sulfuric acid flowmeterIts all Chinese electromagnetic converter core adopts a high-speed central processing unit. The calculation speed is very fast, the accuracy is high, and the measurement performance is reliable. The converter circuit design adopts international advanced technology, with an input impedance of up to 1015 ohms, a common mode rejection ratio of better than 100db, and a suppression ability of better than 90db for external interference and 60Hz/50Hz interference. It can measure fluid medium flow rates with lower conductivity. The sensor adopts non-uniform magnetic field technology and a special magnetic circuit structure, which makes the magnetic field stable and reliable, and greatly reduces the volume, reduces repetition, and makes the flowmeter small and flow oriented.
Working principle
SP-LDE seriesCorrosion resistant sulfuric acid flowmeter, 98% concentrated sulfuric acid flowmeterBased on Faraday's law of electromagnetic induction. The measuring tube of the flowmeter is a non-magnetic alloy short tube lined with insulating material. Two electrodes are fixed on the measuring tube by passing through the tube wall along the diameter direction. The electrode tip is basically flush with the inner surface of the lining. When the excitation coil is excited by two pulse waves, a working magnetic field with a magnetic flux density of B will be 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. Induce an electromotive force E by cutting the magnetic field lines. The electromotive force E is proportional to the magnetic flux density B. Measure the product of the inner diameter d of the tube and the average flow velocity v. The electromotive force E (flow signal) is detected by the electrode and sent to the converter through a cable. After amplifying and processing the flow signal, the converter can display the fluid flow rate and output signals such as pulses and analog currents for flow control and regulation.
Determination of instrument diameter:
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Inner diameter (mm)
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10
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15
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20
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25
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32
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40
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50
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65
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Qmin（m3/h）
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0.05
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0.1
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0.3
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0.4
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0.8
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1.2
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2
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3
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Qmax（m3/h）
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3.5
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8
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15
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22
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35
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55
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95
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150
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Inner diameter (mm)
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80
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100
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125
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150
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200
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250
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300
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350
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Qmin（m3/h）
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5
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8
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12
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18
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25
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35
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50
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60
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Qmax（m3/h）
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220
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350
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550
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800
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1400
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2200
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3200
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4500
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Inner diameter (mm)
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400
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450
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500
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550
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600
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700
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800
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900
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Qmin（m3/h）
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80
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120
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180
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230
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300
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400
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500
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600
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Qmax（m3/h）
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5500
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7500
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9000
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11000
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13000
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16600
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21700
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27468
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Inner diameter (mm)
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1000
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1100
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1200
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1400
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1600
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1800
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2000
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2200
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Qmin（m3/h）
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800
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1000
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1200
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1600
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2100
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2700
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3300
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4000
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Qmax（m3/h）
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33900
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41000
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48800
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66400
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86800
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109000
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135000
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164000
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Corrosion resistant sulfuric acid flowmeter, 98% concentrated sulfuric acid flowmeterDetermination of lining material:
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Lining material
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name
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symbol
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performance
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Maximum operating temperature
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Suitable for liquids
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rubber
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neoprene
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CR
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Moderate wear resistance, resistant to corrosion from low concentrations of acid, alkali, and salt
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＜60℃
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Tap water, industrial water, seawater
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polyurethane
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PU
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Excellent wear resistance, but poor acid and alkali resistance
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＜60℃
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Pulp, slurry and other slurries
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fluoroplastic
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Polytetrafluoroethylene
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F4 or PTFE
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The chemical properties are very stable and resistant to corrosion from boiling hydrochloric acid, sulfuric acid, aqua regia, and concentrated alkali
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＜160℃
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Highly corrosive acid-base salt liquids
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Translation of perfluoroethylene propylene:
Teflon FEP
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F46 or FEP
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Chemical properties equivalent to F4
The compressive and tensile strength is better than 4
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＜120℃
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Corrosive acid-base salt liquids
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Tetrafluoroethylene and ethylene copolymer
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F40 or ETFE
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Chemical properties equivalent to F4
The compressive and tensile strength is better than 4
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＜120℃
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Corrosive acid-base salt liquids
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plastic
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polyethylene
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PO
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Corrosion resistance to dilute acids, alkalis, and salts
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＜60℃
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Wastewater containing acid, alkali and salt liquids
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Polyphenylene sulfide
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PPS
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Corrosion resistance to dilute acids, alkalis, and salts
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＜100℃
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Wastewater containing acid, alkali and salt liquids
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Corrosion resistant sulfuric acid flowmeter, 98% concentrated sulfuric acid flowmeterproduct portfolio
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model
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caliber
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SP-LDE
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15~2600
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code name
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electrode material
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K1
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316L
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K2
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HB
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K3
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HC
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K4
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Titanium
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K5
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Tantalum
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K6
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platinum alloy
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K7
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Stainless steel coated with tungsten carbide
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code name
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Lining material
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C1
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Polytetrafluoroethylene (F4)
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C2
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Perfluoroethylene propylene (F46)
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C3
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Polyfluoroethylene (FS)
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C4
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Polyvinyl rubber
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C5
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polyurethane rubber
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code name
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function
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E1
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Level 0.3
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E2
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Level 0.5
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E3
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Level 1
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F1
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4－20Madc, Load ≤ 750 Ω
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F2
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0-3kHz, 5V active, variable pulse width, output high-end effective frequency
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F3
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RS485 interface
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T1
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Normal temperature type
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T2
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high-temperature type
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T3
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Ultra high temperature type
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P1
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1．0MPa
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P2
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1．6MPa
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P3
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4．0MPa
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P4
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16MPa
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D1
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220VAC±10％
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D2
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24VDC±10％
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J1
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Integrated structure
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J2
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Split type structure
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J3
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Explosion proof integrated structure
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