What are the differences between gas turbine flowmeters and gas waist wheel flowmeters? Here is the voice of Kunke Instrument Factory

  I believe there is no need for the editor to say more here, everyone should be very curious, why are gas turbine flowmeters and gas waist wheel flowmeters always used as a comparison, and what are the essential differences between these two flowmeters?

  The measurement principle and structure of the flow sensor of the gas turbine flowmeter and the gas rotary flowmeter are obviously different. The accuracy of the measurement is affected by the friction resistance torque of the impeller (waistwheel), the bearing, and the flow resistance torque generated when the gas passes through. and other drag torque effects.

  1. Principle and structure of gas turbine flowmeter

  Gas turbine flowmeter is a kind of velocity flowmeter, which must have sufficient length of straight pipe sections before and after installation. The measurement principle is to use the mathematical relationship that the rotational speed of the impeller in the fluid is proportional to the fluid speed, and to reflect the flow rate by measuring the rotational speed of the impeller. It mainly includes built-in rectifier, turbine blade, transmission mechanism, magnetic coupling transmission mechanism, counter and other components. Additional devices such as low-frequency pulse, A1S high-frequency pulse generator, and A1R high-frequency pulse generator can be selected according to actual needs.

  2. Principle and structure of gas waist wheel flowmeter

  Gas waist wheel flowmeter is a kind of positive displacement flowmeter, which has the characteristics of high accuracy, wide range ratio and high reliability. The measurement principle is that a pair of "∞"-shaped rotors, namely waist wheels, rotate synchronously to form a measuring chamber. The number of revolutions of the waist wheels is proportional to the volume of gas passing through the instrument, and the number of turns of the waist wheels reflects the total amount of gas passing through. Its structural composition mainly includes parts such as waist wheel rotor, synchronous gear, permanent lubricating bearing, gear, magnetic coupling transmission mechanism, counter, etc. Additional devices such as high-frequency pulse generator can be selected according to actual needs.

  Now, through the analysis of the above two flowmeters respectively, how do you feel? You are welcome to call Weihai Kunke Flow Meter Co., Ltd. at any time, and share your flow meter knowledge with the editor at any time. Pay attention to the content of the next issue of the editor will be more exciting. For more details, please visit www.kunkeandao.com/en.