1. How to choose the correct anti-corrosion glass rotor flowmeter: Agricultural machinery series hydraulic parts Agricultural Machinery Series Hydraulic Parts,Hydraulic Brake Valve,Hydraulic Control Valve,Full Hydraulic Brake Valve Zhejiang Haihong Hydraulic Technology Co.,Ltd. , https://www.haihong-hydraulic.com
The glass rotor flowmeter is an instantaneous flow measuring instrument that is simple to use, convenient to read, and widely used. In the category of environmental protection equipment and instruments, the amount of use is wide. Therefore, it is extremely important to select and use this instrument glass rotor flowmeter.
2, the type of glass to flowmeter and the selection of glass rotor flowmeter according to its use and adaptation range can be divided into: ordinary type, reinforced vascular type, small flow and small shape, corrosion-resistant, laboratory type, Eight series of insulation type, alarm type and high pressure type. According to the national series of meter series, no matter which series, the maximum number of 12 diameters from 1 mm to 100 mm, the measurable flow range is: liquid (water) 0.1 ml / min ~ 40 m3 / h, gas (air) 1 ml / min ~ 1000 m3 / h. The glass rotor flowmeter used for environmental protection instruments generally has a diameter of less than 10 mm, and the measured flow rate is a small flow range.
3. Calibration of the glass rotor flowmeter:
The scale of the glass rotameter is obtained by the manufacturer under the conditions of the factory using water and dry air which are close to the ideal fluid. However, in the use of the flowmeter, there are two situations in which the scale value cannot be directly used: one is that the measurement medium is not water and air, and the other is that the medium is water and air, but its state (temperature, pressure) and scale The status is different. Thus, in the case of using the flow meter, in order to obtain a correct measurement result, there is a problem that the scale value needs to be corrected. Therefore, solving the calibration of the glass rotor flowmeter is the key to using this instrument.
4. Summary:
Considering that the environmentally friendly instrument uses a glass rotor flowmeter, the anticorrosive glass rotor flowmeter uses a large amount of gas flow to be measured, so the following is only a discussion of the density correction in the measurement of the gaseous medium. Since the viscosity of the gaseous medium is small, the effect of viscosity is omitted from the discussion. Practice has proved that this does not affect the accuracy of the correction.