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The flow meter consists of a Roots flow sensor and accessories. As shown in Figure 1, the working principle of the vane flow meter can be analyzed through the 4 processes in Figure 2-1. Firstly, in terms of structure, the outer rim of the swash plate and the inner wall surface of the flow meter housing can form a \"bin\" space with a certain volume. We call it the “measurement room”. When fluid passes through the flow meter, under the effect of the pressure difference between the inlet and outlet of the flow meter. The two waist gears will rotate in the forward direction. In Figure 2-1(1), a closed metering chamber is formed by the swash plate Q1 and the housing. The fluid filling that metering chamber is a single volume separated by the gear from the continuous fluid entering from the inlet. From the force analysis of the drive wheels, it can be seen that the waist wheel Q1 is the driving wheel at this time. And the fluid pressures acting on Q2 are in balance with each other. No rotational force is generated. So it is the driven wheel. When Q1 drives Q2 to rotate to the position shown in Figure 2-1(2), the fluid in the metering chamber is discharged toward the flowmeter outlet. This can be seen from the force analysis of the pulley. At this point, a rotational force in the direction of the arrows in the diagram is generated on both waist wheels. Rotate the two idler wheels to the position shown in Figure 2-1(3). At this time, it is the opposite of the state in (1). A closed metering chamber is formed by the swash plate Q2 and the housing. The fluid filling that measurement chamber is another separate volume separated by the gear from the continuous fluid at the inlet. And. From the force analysis of the pulley, it can be seen that at this time, pulley Q2 acts as the driving pulley, while the fluid pressures acting on Q1 balance each other out, resulting in no rotational force; therefore, it functions as the driven pulley. Driven by Q2, it rotates to the position shown in Figure 2-1(4) during operation. The fluid in the metering chamber is discharged back toward the outlet of the flow basin meter. As in the state of ((2)), a rotational force in the direction of the arrows in the diagram is generated on both idler wheels, causing the two idler wheels to continue rotating to the position shown in Figure 2-1(1). By this point, the two coupling wheel rotors have rotated a total of 180 degrees. The fluid in the two measurement chambers is immediately directed toward the flow meter outlet. V=4Nv(2–2). The gear flow meter can be used for measuring the flow rate of various clean liquids, and is particularly suitable for measuring oil volumes; it can also be adapted to measure the flow rate of gases. Its accuracy is very high, reaching 0.1–0.5 grade. Its main disadvantages are: large size and bulkiness. The pressure loss is high. Large vibrations during operation, etc. By using two pairs of bevel gear structures at 45 degrees to each other, **vibration noise during operation can be reduced. That’s all for today’s content. If there’s anything you’d like to know more about or discuss, feel free to leave a message. New updates will be posted regularly, so please stay tuned.