Bernoulli's equation describes the constant sum of pressure potential energy, kinetic energy and potential energy in a constant flow of an ideal fluid. Based on Bernoulli's equation, the balanced flowmeter utilizes a porous disk rectifier to reduce eddy currents and measures the differential pressure signal of the fluid to calculate the flow rate. With high accuracy, low straight pipe section requirement, low pressure loss and wide range ratio, it is widely used in many industries.
Project Overview
Bernoulli's equation (or Bernoulli's equation) is a dynamic equation for the steady flow of an ideal fluid. It describes the pressure potential energy, kinetic energy and position of any two points on the streamline in a flow that ignores viscous losses. The sum of potential energies remains the same. This principle has important implications in fluid dynamics and engineering applications.
The working principle of the balance flow meter is closely related to Bernoulli's equation. Specifically, a balanced flow meter is a flow meter based on the principle of energy conversion in sealed pipes. In the case of an ideal fluid, the flow rate in a pipe is proportional to the square root of the differential pressure. The balanced flow sensor is a porous disc throttling rectifier installed on the cross section of the pipe. The size and distribution of each hole is customized based on special formulas and test data, called function holes.
When the fluid passes through the function hole of the disk, the fluid will be balanced and rectified, and the vortex will be minimized, forming an approximately ideal fluid. Through the pressure sensing device, a stable differential pressure signal can be obtained. According to Bernoulli's equation, this differential pressure signal can be used to calculate the flow rate in the pipeline.
Specifically, the working principle of the balanced flow meter can be summarized as the following steps:

The fluid passes through the porous disc throttling rectifier, where it is balanced and rectified and reduces eddy currents.

As the fluid passes through the rectifier, a stable differential pressure signal is generated.

According to Bernoulli's equation, the measured differential pressure value is used to calculate the flow rate in the pipeline.
Because the balance flowmeter adopts a unique design such as equal Reynolds number, increased thickness of the throttling part and processing accuracy, its flow performance is close to that of the Venturi tube, and its structure is simple and Safe, stable and reliable performance. At the same time, the balance flow meter has the characteristics of high measurement accuracy, low straight pipe section requirements, low permanent pressure loss, and wide range ratio. It has been widely used in petroleum, chemical industry, metallurgy, electric power, natural gas, water treatment and other industries.
In short, from the perspective of Bernoulli's equation, the working principle of a balanced flow meter is to measure the differential pressure signal generated by the fluid in the pipeline, and use Bernoulli's equation to calculate the flow rate in the pipeline. This measurement method is based on the assumption of ideal fluid and uses special equipment todesigned rectifier to reduce eddy currents and improve measurement accuracy.