LWGY-40 LWGY-50 LWGY-65 LWGY-80 Turbine flow sensor

LWGY-40 LWGY-50 LWGY-65 LWGY-80 Turbine flow sensor

LWGY-40 LWGY-50 LWGY-65 LWGY-80 Turbine flow sensor, a new generation of turbine flowmeter with the characteristics of simple structure, light weight, high precision, good reproducibility, sensitive response, convenient installation, maintenance and use, is widely used to measure the liquid whose kinematic viscosity is less than 5x10-6m2/s and whose kinematic viscosity is greater than 5x10-6m2/s in the closed pipeline, which has no corrosion effect with stainless steel 1Cr18Ni9Ti, 2Cr13, corundum AI2O3 and cemented carbide, and has no fiber, particle and other impurities, The flowmeter can be used after real liquid calibration. If it is matched with the display instrument with special functions, it can also carry out a quantitative control, excess alarm, etc. it is an ideal instrument for flow measurement and energy saving.

Working principle of LWGY-40 LWGY-50 LWGY-65 LWGY-80 Turbine flow sensor

The fluid flows through the sensor housing. Because the blade of the impeller has a certain angle with the flow direction, the impulse of the fluid makes the blade have a rotating torque. After overcoming the friction torque and fluid resistance, the blade rotates. After the torque is balanced, the speed is stable. Under certain conditions, the speed is proportional to the flow rate. Because the blade has magnetic conductivity, it is in the magnetic field of the signal detector (composed of permanent magnetic steel and coil), and the rotating blade cuts the magnetic line of force, The magnetic flux of the coil is changed periodically, so that the electric pulse signal is induced at both ends of the coil. This signal is amplified and shaped by the amplifier to form a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to the display instrument to display the instantaneous flow and cumulative measurement of the fluid. Within a certain flow range, the pulse frequency f is proportional to the instantaneous flow of the fluid flowing through the sensor. The flow equation is: q=3600xf/k: where:

F - pulse frequency [hz];

K -- instrument coefficient of sensor [1/m3], given by the calibration sheet. If the unit is [1/]

Q -- instantaneous flow of fluid (under working condition) [m3/h];

3600 -- conversion factor.

LWGY-40 LWGY-50 LWGY-65 LWGY-80 Turbine flow sensor features

1. high * degree, generally up to +1%r, +0.5%r, high precision type up to +0.2%r;

2. good repeatability, short-term repeatability can reach 0.05%~0.2%. It is precisely because it has good repeatability, such as frequent calibration or online calibration can get very high * * degree, so it is the preferred flowmeter in trade settlement;

3. output pulse frequency signal, suitable for total quantity measurement and connection with computer, without zero drift and strong anti-interference ability;

4. high frequency signal (3-4khz) can be obtained with strong signal resolution;

5. wide range, medium and large caliber can reach 1:20, and small caliber can reach 1:10;

6. compact and light structure, convenient installation and maintenance, and large circulation capacity;

7. it is suitable for high-pressure measurement. There is no need to open a hole on the meter body, so it is easy to make a high-pressure instrument;

8. there are many types of special sensors, which can be designed as various special sensors according to the special needs of users, such as low-temperature type, bidirectional type, downhole type, special type for sand mixing, etc;

9. it can be made into a plug-in type, which is suitable for large-diameter measurement, with small pressure loss and low price. It can be taken out without cutting off the flow, and it is convenient for installation and maintenance.