Gas turbine flowmeters can use those external lubricating oil pumps to lubricate bearings. I believe that after understanding the working principle of gas turbine flowmeters, you can judge which gas turbine flowmeter to use under the working conditions required on site. Its turndown ratio can reach 10:1, and the accuracy is within ±0.2%. Simultaneously, the pulse probability is subjected to resonance-to-voltage conversion to indicate instantaneous flow. In the figure, the induction coil and the permanent magnet are fixed on the housing together. The turbine flowmeter can also use an external lubricating oil pump to lubricate the bearings, but be careful not to overdo it. Gas turbine flowmeters are velocity flowmeters, also known as impeller flowmeters. When the ferromagnetic turbine blade passes the magnet, the reluctance of the magnetic circuit changes, which generates an induced signal. Turbine flowmeter manufacturers 1. There are the following important information on the counter counter panel: (1) Maximum working temperature and pressure: (2) Measurement and small and large flow grades (3) Product model and number (4) Explosion-proof grade and mark ( 5) The equivalent of the fluid corresponding to the low-frequency or high-frequency pulse and the wiring method. 2. Measurement components The turbine has processed blades, which are combined with a set of reduction gears and bearings to measure the components. Two high-precision stainless steel self-lubricating bearings supporting the turbine ensure that the components have a long service life. The command is amplified and shaped by the amplifier and sent to the counter or frequency meter to display the total accumulated flow. Even if you don't buy it, you can communicate with the joint test to confirm your own ideas. The time constant of the turbine flowmeter with low inertia and small size can reach 0.01 seconds. Turbine flowmeter Turbine flowmeter is the main type of velocity flowmeter. When the measured fluid flows through the turbine flowmeter sensor, under the action of the fluid, the impeller rotates under force, and its rotational speed is proportional to the average flow velocity of the pipeline. At the same time, The blade periodically cuts the magnetic field lines generated by the electromagnet and changes the magnetic flux of the coil. According to the principle of electromagnetic induction, a pulsating potential message, that is, electrical pulse signal information, will be induced in the coil. The flow is proportional. The working principle of the gas turbine flowmeter: it first converts the flow rate into the rotational speed of the turbine, and then converts the rotational speed into an electrical signal proportional to the flow rate. 4. Rectifier The rectifier is used to make the fluid flow through the turbine flowmeter in a regular state, thereby eliminating the unfavorable effect of disturbance on the measurement. High metering accuracy. The turbine flowmeter of the joint test can still be recommended. The diameter, temperature resistance, accuracy and life of the gas turbine flowmeter all exceed the industry standards. 5. Magnetic coupling transmission device This device separates the counter part in the atmospheric environment from the gas to be measured, and transmits the rotation of the measuring assembly to the counter. Here I will introduce the working principle of the turbine flowmeter, so that everyone can keep an eye on their own when choosing a model, and choose a suitable turbine flowmeter, which is more economical. Small-caliber gauges also use threaded interfaces. I believe everyone is familiar with turbine flowmeters, especially friends who make oil food, mechanical equipment, pure water equipment and even fluorescent equipment, and they must have some energy to use it. Useful good, useful bad, this is not the working principle of the turbine flowmeter is not suitable for your site, it is very likely that the site selection is not in place, and the turbine flowmeter that does not meet the parameters will definitely not be able to satisfy the friends on site. Require. The impeller type flowmeter uses the proportional relationship between the rotational angular velocity of the impeller placed in the fluid and the fluid flow rate, and reflects the volume flow of the fluid through the pipeline by measuring the rotational speed of the impeller. one. The speed of the impeller is proportional to the flow, and the number of revolutions of the impeller is proportional to the total flow. Gas turbine flowmeter is generally composed of the following typical five parts: 1. Meter body The material of the meter body is generally steel or cast iron, and its ends are flanged. This flow meter is used to detect instantaneous flow and total accumulated flow, and it presents the signal as sound, which is easy to digitize. The flow out of the turbine flowmeter is the rate modulation information line number, which not only improves the anti-interference of the detection circuit, but also simplifies the flow detection system.
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