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Can the liquid vortex street flowmeter measure the pure water medium?
The liquid vortex street flowmeter can meet the measurement needs of pure water medium and are not affected by fluid properties.
View MoreIs the metal rotor flowmeter a constant pressure drop flowmeter?
Time: 2024-11-25
Equipment Configuration：metal rotor flowmeter
The metal rotor flowmeter is an instrument that uses the principle of force balance of the float in the fluid to measure the flow rate of liquid or gas.
Project Overview
Metal rotor flowmeter is a common flow measurement instrument that uses the principle of force balance of a float in the fluid to measure the flow rate of liquid or gas. The working principle of this flow meter is based on the concept of constant pressure drop, so the metal rotor flow meter can be classified as a constant pressure drop flow meter.
What is a metal rotameter?
Metal rotameter, also known as float flowmeter or variable area flowmeter, consists of a vertically mounted conical tube and a float that can rise and fall freely within it. As fluid passes through the pipe, the float moves upward due to the force of the fluid. Since the cross-sectional area of the tapered tube increases with height, the velocity of the fluid will gradually slow down, and the pressure on the float will also gradually decrease. When the gravity exerted on the float is balanced by the buoyancy force and viscous drag exerted on it by the fluid, the float will stay in a specific position. This position corresponds to a certain flow value, which can be read through a dial or an electrical signal output device.
What is constant voltage drop?
Constant pressure drop means that the pressure difference within the system remains unchanged during a process. In this case, the source of power for fluid flow is the energy input to maintain a constant pressure difference. For metal rotameter, its internal design keeps the pressure drop before and after the flow measurement process unchanged. This means that no matter how the flow rate changes, the pressure difference between the inlet and outlet always remains a fixed value.
In summary, the metal rotor flowmeter is indeed a constant pressure drop flowmeter because its working principle is based on constant pressure drop for flow measurement. This characteristic enables the metal rotameter to provide relatively stable measurement results within a certain range and is not affected by changes in the physical properties of the fluid.
