The difference between a balanced flow meter and an orifice plate flow meter

Project Overview

　　Balance flowmeter is also called porous plate flowmeter, is an energy-saving differential pressure flowmeter, basically all of the orifice plate flowmeter, conical, homogeneous tube, wedge, vortex, electromagnetic and other flowmeter adapted to 90% of the flow measurement occasions, can be applied to the balance of the flowmeter, the HSP balance flowmeter is widely used in petroleum, chemical industry, metallurgy, electric power, light industry and other sectors. So what are the differences between the balance flowmeter and orifice plate flowmeter?

　　First, the working principle

　　(A) Balance flow meter: and Sheng measurement and control HSP balance flow meter based on the principle of energy balance design, is a new type of differential pressure flow meter, which uses a unique Reynolds number, increase the thickness of the throttle and processing accuracy, so that mobility can be close to Venturi, the construction of simple, safe, a qualitative leap in performance.

　　(B) orifice plate flowmeter: through the measurement of fluid flow through the orifice plate when the pressure difference to calculate the flow. This pressure difference is proportional to the flow rate is the basic principle of orifice plate flowmeter.

　　Second, the structure and composition

　　(A) balanced flowmeter: usually composed of pipe and flowmeter, the flowmeter contains a multi-hole disc throttle rectifier (i.e., balanced flow sensor), installed in the cross-section of the pipe. The size and distribution of each orifice is customized based on special formulas and test data, called function orifices.

　　(ii) Orifice plate flowmeter: consists of a circular plate and an orifice. The circular plate is usually mounted in the center of the pipe and the orifice is centered on the plate. Orifice plate flowmeter can be standard, notched or convex type.

　　Third, the performance characteristics

　　(A) balanced flowmeter:

　　1 can measure high temperature and high pressure media: the same with the orifice plate and other throttling devices, operating temperature and pressure depends on the material and grade of the pipe and flange, the working temperature up to 550 ℃, the working pressure of up to 42MPa

　　2. low straight pipe section requirements: balanced flow sensor flow field stabilization, and pressure recovery than the orifice plate twice as fast, so greatly shorten the requirements of the straight pipe section.

　　3. Wide range ratio: balanced flow meter range ratio is wide, suitable for a variety of flow measurement occasions.

　　4. energy-saving instrument: porous symmetrical balance design reduces turbulent shear and vortex formation, reducing the loss of kinetic energy, thus saving the operating energy costs.

　　(ii) Orifice plate flow meter:

　　1. simple structure: the structure of the orifice plate flowmeter is relatively simple, easy to install and maintain.

　　2. inexpensive: due to its simple structure, low manufacturing costs, so the price is relatively cheap.

　　3. Strong applicability: orifice plate flowmeter is suitable for most fluids, widely used in water, gas, air conditioning and other fields.

　　Fourth, the application of occasions

　　Balance flowmeter: widely used in petrochemical, electric power, pharmaceutical and other industries, especially for the need for high precision and long-term stability of the measurement of the occasion.

　　Orifice plate flowmeter: mainly used for water, gas, air conditioning and other fields, but also for petroleum, chemical, metallurgy, electric power and other industrial sectors of the process control and measurement.

　　Balance flowmeter and orifice plate flowmeter in many ways there are significant differences. When choosing a flowmeter, comprehensive consideration should be made according to specific application scenarios and needs. He Sheng Measurement and Control provides comprehensive energy management system solutions from meters to system packages, inquire to learn more.