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How to read a rotor flowmeter? Why?
The reading method for the rotor flowmeter is as follows: For the sub flowmeter reading method, stand in front of the flowmeter, with your eyes parallel to the float, and move your line of sight horizontally to the left until you see the outline of the float touching the positioning line. The corresponding reading value is at the intersection of the positioning line and the horizontal scale in the middle of the float.. A rotor flowmeter measures fluid flow based on the principle of throttling, but it changes the flow area of the fluid to maintain a constant differential pressure between the upper and lower parts of the rotor. Therefore, it is also known as a variable flow area constant differential pressure flowmeter or a float flowmeter. In a vertical conical tube that expands from bottom to top, the gravity of the circular cross-section float is supported by liquid dynamics, and the float can freely rise and fall inside the conical tube. Under the action of flow velocity and buoyancy, it moves up and down, and after balancing with the weight of the float, it is transmitted through magnetic coupling to indicate the flow rate on the dial. Generally divided into glass and metal flutter rotor flow meters. Metal rotor flowmeter is the most commonly used in industry. For small diameter corrosive media, glass material is usually used. Due to the inherent fragility of glass material, rotor flowmeters made of precious metals such as all titanium are also used for key control points. Rotary flowmeter is a variable area flow meter based on float position measurement. Adopting an all metal structure and modular concept design, it has low pressure loss, large range ratio (10:1),
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2. The reading of the oxygen flowmeter for spherical buoys should be based on the cross-section of the center of the sphere
The reading of the oxygen flowmeter for spherical buoys should be based on the cross-section of the center of the sphere.. When discussing the reading issue of spherical buoy oxygen flowmeter, it is first necessary to clarify that as a measuring tool, the accuracy of the reading of spherical buoy oxygen flowmeter is crucial for fields such as medical care. There are various opinions regarding the reading position of spherical buoys, but through consulting relevant literature and information, it can be determined that using the cross-section of the center of the sphere as the standard is a more accurate and scientific reading method.
1. Characteristics of Spherical Float Oxygen Flow Meter Spherical float oxygen flow meter is usually composed of a metal sphere as the float, and the flow rate is indicated by the float floating up and down in the flow tube to indicate the size of the flow.
. Due to the spherical shape of the buoy, the distance between each point on its surface and the center of the sphere is equal. Therefore, when reading the flow rate, a unified reading position needs to be determined.2. Analysis of different reading perspectives based on the upper end of the sphere: This perspective holds that the reading should be based on the upper plane of the buoy.
. However, due to factors such as fluid pressure and temperature that may affect the float during its floating process, the position of