Guangzhou Flow Meter Co., Ltd
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Boiler steam meter, compressed air vortex flowmeter
Intelligent vortex flowmeter Minghong for sale, with discounted prices and guaranteed quality
Product details

Intelligent vortex flowmeter Minghong is sold at a discounted price with guaranteed quality. Minghong Automation Instrument Co., Ltd. adheres to the principle of survival through reputation and development through service, and has won the trust of many customers at home and abroad.

MHGBThe vortex flow sensor has no movable parts, a simple and sturdy structure, and measurement accuracy within the specified Reynolds number range is not affected by the temperature, pressure, density, viscosity of the medium. In addition, its intelligent two-wire output and on-site display type also have their unique characteristics: it adopts ultra-low functional consumption single-chip microcomputer technology and usesEEPROMPower off protection for accumulated traffic (time greater than)10The non-linear error of the instrument coefficient was corrected by software, which improved the accuracy of the whole machine measurement.

Using on-site methods24VDCThere are two types of power supply: power supply and battery power supply, which solve a major problem for users who need on-site display or standard signal output in situations where there is no (added) DC power supply on site.

Application of Minghong Instrument Steam Meter Note: Different diameters, parameters, and prices vary

Widely used for measuring the flow of water supply and drainage, industrial circulation, sewage treatment, oil and chemical reagents, compressed air, saturated and superheated steam, natural gas, and various media in large, medium, and small pipelines.

Working principle

Application of vortex flowmeter: This measuring instrument is used for mass or volume flow, gas, liquid, steam and other media. It can be widely used in various pipelines of large, medium and small enterprises and factories, such as water supply and drainage, petroleum, chemical, metallurgical, thermal, textile, papermaking, industrial circulation, thermal power plants, external steam sales, heating, sewage treatment, oil and chemical reagents, compressed air, saturated and superheated steam, natural gas, etc(Oxygen, nitrogen, hydrogen, natural gas, coal gas, etc)Measurement of various media flow rates Measurement and control of liquids (such as water, benzene, etc.).

The vortex flow sensor is a fluid oscillating instrument developed based on the principle of "Karman vortex street", which can be represented by the following equation:

1)In the formula:f: Vortex separation frequency

StStrouhal number

v: Flow rate

dWidth of vortex generator

KInstrument coefficient: the ratio of the total pulse volume to the total volume of vortex separation

KInstrument coefficient: the ratio of the total pulse volume to the total volume of vortex separation

1/3m3 2

In the formula:KInstrument constant (pulse)l/m3

N: Total number of pulses (times)

Q: Total volume(m3

The relationship between vortex separation frequency and fluid flow rate is as follows:(3)As shown

f = KQ3

In the formula:f: Frequency (times)

Q: Traffic(m3 h

So by detecting the vortex separation frequency, the flow rate of the pipeline fluid can be measured.

performance index

The nominal Tongjing(mm 2025405080100150200250300

material1Cr 18Ni 9Ti

Nominal pressure(Mpa2.5Mpa>2.5MpaNegotiated supply

Temperature of the tested medium ℃ 40+250℃-40+350

accuracy class 0.51.01.5

Range degree1:10

Resistance loss coefficientCd<2.4

output signal Voltage pulse low level ≤1VHigh level ≥5VCurrent output:420mADC

environmental condition Temperature -10+55℃, relative humidity5%~90%Atmospheric pressure86106Kpa

power supply+12V±3VDC24V±3VDC

Signal transmission lineSTVPV3×0.3(Three wire system),2×0.3(Second line system)

Distance 1000Meter (converter output),520Meter (separated sensing signal output)

Explosion proof safety barrier model Pulse output:XSJType,420mADCoutputXSJ-Btype

Note: The measured medium is a single fluid or is considered a single fluid

Flow range of sensor, sensor diameterDNmm)Liquid, gas, vapor

20 110 540 880

25 1.616 860 12120

40 230 18160 20250

50 350 30300 30400

80 10130 70600 1001200

100 15200 1001000 2002000

150 40450 2002000 4504500

200 801000 4004000 8008000

250 1201200 7008000 120012000

300 1802000 90010000 160016000

Fluid refers to warm water at normal temperature(t=20℃,P=1000kg m3

Gas refers to ambient temperature and pressure air(t=20℃,P=0.1MPaP=1.205kg/m3

Steam refers to dry saturated steam(t=143℃,P=0.4MPaP=2.129kg/m3

Product Model and Marking describe

LUGB- Using the principle of Karman vortex street and flow sensor

Installation method:1Flange connection (body flange standard:GB9115.10.88

2Flange mounting (factory provided mounting flange and bolts)

Tested medium:1gas2liquid3steam

Caliber:15mm 20mm 25mm 32mm 40mm 50mm 65mm 80mm 100mm 150mm 200mm 250mm

300mm

Output method:PpulseR RS485communicationS 420mADCtwo-wire systemDBattery powered, on-site LCD display

Explosion proof gradeBIntrinsic safety explosion-proof,iaCT6

Note: Two in the mark“B”Represent their meanings by their respective numbered positions

Example: Choose a flange mounted steamDN50The product model of the explosion-proof split type current output instrument should be:LUGB-2305FSBtype

Sensors should not be used in situations with high vibration levels, and should be installed as far away from the pump as possible to avoid introducing non flow signals.

If it is necessary to open the converter end cover on site, be sure to tighten the cover after the operation to prevent the circuit board from getting damp.

Sensors should be regularly cleaned when the medium is dirty and contains a lot of suspended solids, and the sensing probe should not be damaged during cleaning.


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