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LUXB intelligent Vortex precession flowmeter

1 Operating principles

Flow through section plane of flow sensor is similar to shaped conductor of venturi pipes. Fix a helical guide vane at entrance side, when the fluid enters the flow sensor, the guide vane will force the fluid form fierce vortex. When the fluid enters the dilating section, the vortex will begin the second rotation under influence of reflux and will form gyro vortex precession. Frequency of the precession shares a direct proportion with flow rate, free from influence of the fluid¡¯s physical nature and density, therefore, precession frequency of the second rotation acquired by detecting element can obtain good linearity in a large scale of flow rate. Signals will be enlarged, filtered by the preamplifier and will change into pulse signal which shares a direct proportion with flow speed, then the signals will be sent to micro processing unit to be integrated together with detection signals of the temperature and pressure,finally, the measuring date resulted on the LCD screen (instantaneous flow, total flow, temperature and pressure data).

2.. Main Technical Parameters and Function

2.1 Flowmeter Sizes, Basic Parameters and Performance Index (Table 1)

 

Sizes DN(mm)

Flow range

( m3/ h)

Operate pressure ( MPa)

 

Accuracy

 

Repeability

15

1.5~12

 

 

 

 

1.6

2.5

4.0

6.3

10

16

26

42

 

 

 

 

 

 

 

 

1.0

1.5

 

 

 

 

 

 

 

 

1/3 better than the basic error's absolute value limit

20

2~15

25

3.0~30

32

6.0~60

40

7.0~70

50

10~130

2.5~75

80

20~400

10~200

100

70~800

30~600

125

90~1000

 

150

190~1900

40~900

200

180~3600

1.6;2.5;4.0

Notes: 1. Accuracy rating is system accuracy after temperature and pressure revised;

2. Special flow range is discussable with manufacture.

2.2 Standard condition: P=101.325KPa, T=293.15K

2.3 Conditions of usage

Environment temperature: -30 ¡ãC ~ 65 ¡ãC Relative humidity: 5% ~95%

Medium temperature: -20 ¡ãC ~ +80 ¡ãC Atmospheric pressure: 86KPa~106KPa

 

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Tianjin U-ideal Instrument co., ltd is one of esteem company with collection of scientific research, development and sales. We have abundant technical capacity, special scientific research teams with advanced producing and checkout equipment.

Tianjin U-ideal Instrument Co., Ltd produce and sell Magnetic Level Indicator, bi-color quartz glass tubular level gauge, liquid level switch, float switch, level sensor, level transmitter, level switch, tank gauge, water gauge, liquid level instrument, ultrasonic level sensor, flow meter, PD flow meter, oval gear flow meter, dual-rotor turbine flowmeter, duplex rotor meter, vortex flow meter, turbine flowmeter, electromagnetic flowmeter, metal rotary flow meter and valves,oil/water industrial control systems.

We are TIANJIN U-IDEALINDUSTRIES COMPANY , have accumulated abundant experience especially in high temperature and high pressure liquid level meters ,and antiseptic liquid level gauge .we also made to orders of non-standard liquid level meters to satisfy different customers .those products has been used by many enterprises of all walks of chemical,industries, petroleum ,electricity, food, light, medicine, metallurgy, papermaking etc.. and our products have been certified by quality system ISO9001£º2000.

Tianjin U-ideal Instrument Co. are also engaged in flowmeter trade. Such as gas flowmeter and liquid flowmeter with the type of explosion-proof and others.

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