System Overview
Compressed air is an important secondary energy for industrial production, mostly from electrical or thermal energy converted by the compressor, from a large amount of energy into the management of the mass to achieve energy savings and improve the level of equipment management, is an important economic indicator of enterprises and institutions cost accounting, which is the main purpose of compressed air flow measurement. Compressed air flow is an important parameter to express the performance of the air compressor, is also an important parameter measured in the industrial process. With the widespread use of air compressors, the accurate measurement of its flow for product upgrading, industrial production process control and monitoring, as well as energy conservation and emission reduction have become critical.
Measurement in use
How should the flow of compressed air be measured? Not all measurement methods or measuring instruments are suitable for compressed air flow measurement, should be based on the characteristics of the compressed air itself, measuring star requirements and different conditions of use, choose the appropriate measurement methods and flow meters. To consider the installation conditions, the instrument in the location of the pipeline, before and after the straight pipe section to meet the requirements, the pipeline and the instrument is installed horizontally or vertically, the size of the space around the pipeline is convenient for instrument maintenance; also take into account the impact of the temperature of the site on the instrument, whether there is electromagnetic interference, * after, from the economic aspects, such as online monitoring of the plant flowmeter selection, it is necessary to consider reducing pressure loss, saving energy; Commonly used, suitable for compressed air flow star measurement of the flowmeter. Vortex flowmeter as the main flowmeter for measuring compressed air has the following characteristics.
(1) simple structure, easy to install and maintain.
(2) no internal moving parts, long service life
(3) higher measurement accuracy, wider measurement range
(4)Small pressure loss
Limitations: mainly on vibration and fluid pulsation is more sensitive to installation requirements, and is not suitable for low Reynolds number measurement.
Compressed air flow measurement system mainly consists of measuring compressed gas vortex flow meter, pressure sensor, temperature sensor, flow accumulator, control box and other parts, can be used in a variety of industries in the measurement of compressed air gas flow.
