Pitot tubes used for measuring wind speed in coal mines

Pitot tubes used for measuring wind speed in coal minesAlso known as "airspeed tube", "wind speed tube", "pitot tube", English is Pitot tube. Pitot tube is a tubular device that measures the total pressure and static pressure of an airflow to determine its velocity, named after H. Pitot from France. Strictly speaking, pitot tubes only measure the total pressure of airflow, also known as total pressure tubes; Only those that measure both total pressure and static pressure simultaneously are called anemometers, but they are commonly referred to as pitot tubes.

Measurement medium: gas or liquid compatible with 304 stainless steel.
Main purpose: to measure the total pressure, static pressure, dynamic pressure (i.e. pressure difference) inside the pipeline, and also to calculate flow velocity and flow rate.
Instrument connection: It can connect various pressure instruments (such as U-shaped pressure gauges, inclined micro pressure gauges, inclined tube differential pressure gauges, digital micro pressure gauges, compensating micro pressure gauges, etc.) as well as differential pressure transmitters, secondary instruments, and imported pressure instruments.

Operating temperature: ≤ 600 ℃

Execution standard: National standard JJG518-98

Usage humidity: ≤ HR45%

Measurement flow velocity range: air flow velocity ≤ 40m/s; Water flow rate ≤ 25m/s

Standard coefficient of pitot tube: L-type pitot tube is between 0.99 and 1.01;

Pitot tube structure: The L-shaped standard pitot tube is made up of two concentric tubes with different inner diameters. The straight end tail joint of the inner tube is a full pressure tube, and the side joint of the outer tube is a static pressure tube.

Pitot tubes used for measuring wind speed in coal minesCan be used to measure aircraft speed. In addition, in scientific research, production, teaching, environmental protection, tunnel, mine ventilation, and energy management departments, pitot tubes are commonly used to measure the airflow velocity in ventilation ducts, industrial ducts, and furnace flues. After conversion, the flow rate is determined, and the water flow velocity in the ducts can also be measured. Using a pitot tube for speed measurement and flow determination has a reliable theoretical basis, is easy to use, accurate, and is a classic and widely used measurement method. In addition, it can also be used to measure the pressure of fluids.