Waist wheel flowmeter, what is the working principle of waist wheel flowmeter?

Turbine flowmeters work using the principle of fluid momentum and torque.

When the fluid encounters a barrier surface at an angle to the flow direction, its dynamic pressure energy will form a force on the barrier surface at an angle to the fluid flow direction. When a group of blades at a certain angle to the flow direction are fixed on a rotating shaft to form a turbine (rotor), the turbine (rotor) will obtain a rotational torque and rotate under the action of the fluid, and its rotational speed is basically proportional to the flow velocity. Measuring the rotational speed yields the flow rate and, in turn, the flow value.

The flowmeters that work according to this principle are: turbine flowmeter, rotor flowmeter.

The waist wheel flowmeter works according to the principle of volume integration.

The measuring principle of this type of flow meter is similar to that of the liquid in a large container measured several times using a small measuring cup. It is done by making the fluid enter a fixed-size space during the flow process, and pushing this space to move in the direction of fluid motion to a certain position and then flow out. When this process is carried out continuously, the number of spaces that pass through is counted to get the flow.

The flowmeters that work according to this principle are: elliptical gear flowmeter, waist wheel (roots) flowmeter, scraper (cam, groove) flowmeter, rotary piston flowmeter, disc flowmeter. Wet flow meter, skin flow meter.

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The waist wheel flowmeter is a commonly used flow measurement instrument, which is mainly used in the flow measurement of fuel, natural gas, water and other denier media. Its working principle is to measure the flow rate of the medium by the force of the medium on the waist wheel, and the specific steps are as follows:

1.The waist wheel flowmeter is installed in the pipeline, and a pair of parallel waist wheels are placed in the pipeline where the medium flows;

2.When the medium passes through the waist wheel, a rotational force will be generated, and the waist wheel will rotate with the medium, and the speed of rotation is proportional to the flow rate of the medium;

3.By detecting the speed at which the waist wheel rotates, the flow rate of the medium can be calculated.

It should be noted that the measurement accuracy of the waist wheel flowmeter is affected by factors such as medium consistency, temperature, and pressure. When using the waist wheel flowmeter for measurement, it is necessary to strictly control the measurement conditions to ensure the accuracy of the measurement of the knots.

Waist wheel flowmeter and twin-screw flowmeter are two commonly used flowmeters, and their working principle and structure are different.

The waist wheel flowmeter relies on the conversion of the kinetic energy of the fluid into mechanical energy to measure the flow rate, it uses a small diameter inclined oval rotor, the rotor has a groove parallel to the rotor axis in the middle, the fluid passes through the groove, so that the rotor begins to rotate. The flow rate can be calculated by measuring the rotational speed and the size of the oval rotor. The waist wheel flowmeter is suitable for low and medium speed flow metering, and has high accuracy, but is not suitable for high viscosity fluids.

Marker. A twin-screw flowmeter calculates the flow rate by measuring the volume of fluid between two screws. The fluid passes through the gap between the screws, causing the two screws to move relative to each other, thus enabling the flow rate calculation. The twin-screw flowmeter is suitable for high-viscosity, fouling-prone fluids, and the accuracy is relatively high, but attention needs to be paid to selection and installation.

Therefore, the main difference between the two is the difference in the measurement principle and scope of application.

Hello, it is a pleasure to serve you and give you the following answer: the waist wheel flowmeter cannot be reversed, because it is a static flowmeter, it can only measure the flow rate of the fluid, but cannot change the flow direction of the fluid. If a problem occurs with the waist wheel flowmeter, it may be due to the following reasons:

1.Damage to the internal structure of the flow meter: The internal structure of the waist wheel flow meter is damaged, which may affect the normal operation of the flow meter.

2.The flowmeter is subject to external interference: external interference may affect the normal operation of the flowrate dismantling meter, such as vibration, noise, etc.

3.Contaminated flow meter: The flow meter is contaminated, which may affect the normal operation of the flow meter.

The solution is to tremble the years: 1Check the internal structure of the flowmeter:

Check the structure of the flow meter, and if it is found to be damaged, it should be repaired or replaced in time. 2.Avoid external distractions:

External interference, such as vibration, noise, etc., should be avoided as much as possible to ensure the normal operation of the flowmeter. 3.Clean Flow Meter:

Clean the flow meter regularly to prevent contamination of the flow meter, which will affect the normal operation of the flow meter. Personal Tips:1

Check the flow meter regularly: Check the flow meter regularly to ensure that the flow meter is working properly. 2.

Avoid external interference: External interference should be avoided as much as possible to ensure the normal operation of the flowmeter. 3.

Clean the flowmeter: Clean the flowmeter regularly to prevent the flowmeter from being contaminated, which will affect the normal operation of the flowmeter.

Volumetric flowmeter, two waist wheels in the gauge body that closely "bite" each other will "squeeze" a fixed volume of gas or liquid every rotation under the action of pressure, and the flow rate can be calculated by measuring the number of rotations.

First of all, there is a clear difference in appearance between the elliptical gear flowmeter and the waist wheel flowmeter.

Secondly, when in use, the waist wheel flowmeter does not produce as much noise as the two gears of the elliptical gear flowmeter because the two gears are attached together.

Finally, for two flowmeters of the same caliber, the flow range of the waist wheel flowmeter is larger than that of the elliptical gear flowmeter.

Although there are many differences between the two flow meters, they are biased towards the medium with high viscosity in the measurement medium, especially suitable for measuring the medium with self-lubricating effect, and it is best not to contain solid impurities in the medium, otherwise it will cause wear and even damage to the gear.

In short, the elliptical gear flowmeter and the waist wheel flowmeter have a lot in common, but the difference is also very large, so when the user buys the similarities and differences between the two flowmeters, in case the wrong purchase can not meet their own requirements.

The waist wheel flowmeter is a kind of volumetric flowmeter, which has the characteristics of high measurement accuracy, high temperature and high pressure resistance, and can measure high viscosity liquids.

1.Maintain the reliability of metering even when the flow rate of the medium changes relatively largely.

2.The dust-proof structure can effectively prevent the impurities in the medium from entering the bearing caused by rapid wear and seizure.

3.The installation requirements are low, and the front straight pipe section is 2D, which can ensure the metering accuracy of the flow meter.

Jiangsu Jinhe meter can be tried.

Nominal diameter.

mm Flow range.

m3 h start flow.

m3 h maximum pressure loss.

pa nominal pressure.

MPA is temperature resistant.

Connection 32 120 -20 80 Flange connection 1-20 120 -20 80 Flange connection 40 130 -20 80 Flange connection 180 -20 80 Flange connection 50 1-60 180 -20 80 Flange connection 210 -20 80 Flange connection 80 220 -20 80 Flange connection 220 -20 80 Flange connection 220 -20 80 Flange connection 100 240 -20 80 Flange connection 280 -20 80 Flange connection 300 -20 80 Flange connection 540 -20 80 Flange connection 150 580 -20 80 Flange connection 10-800 590 -20 80 Flange connection 600 -20 80 Flange connection 700 -20 80 Flange connection 200 31-1600 650 -20 80 Flange connection 250 75-3000 450 -20 80 Flange connection.