1、 Product Overview

Turbine flowmeter (hereinafter referred to asTUF）It is the main type of impeller flowmeter, which also includes anemometers, water meters, etc.TUFComposed of sensors and conversion displays, the sensors use a multi blade rotor to sense the average flow velocity of the fluid, thereby deriving the flow rate or total amount. The rotational speed (or number of revolutions) of the rotor can be detected by mechanical, magnetic induction, or photoelectric means and displayed and transmitted by a reading device for recording. It is said that the United States has been 1886 The first one was released in the yearTUFPatent,1914The patent of the year holds thatTUFThe traffic is related to frequency. The first one in the United StatesTUFYes, it is 1938 Developed in [year], it was used for measuring the flow rate of fuel on airplanes, but it was not until after World War II that a high-precision and fast response flowmeter was urgently needed for jet engines and liquid jet fuels that it gained true industrial application. Nowadays, it has been widely used in various departments such as petroleum, chemical, scientific research, national defense, and metrology. In the flowmeterTUFVolumetric flow meters and Coriolis mass flow meters are the three types of products with the best repeatability and accuracyTUFIt also has its own characteristics, such as simple structure, few processed parts, light weight, easy maintenance, high flow capacity, and adaptability to high parameters, which are difficult for the other two types of flow meters to achieve.

DWLThe series turbine flowmeter is a new generation of turbine flowmeter that has been optimized and designed based on advanced technology of flow meters at home and abroad. It has the characteristics of simple structure, lightweight, high accuracy, good reproducibility, sensitive response, easy installation, maintenance and use. It is widely used for measuring stainless steel in closed pipelines1Cr18Ni9Ti、2Cr13And corundumAl 2O3Hard alloy does not corrode and has no impurities such as fibers or particles. Its kinematic viscosity at working temperature is less than5×10-6m 2/sLiquid with a viscosity greater than5×10-6m 2/sThe liquid can be used for real liquid calibration of the flowmeter. If paired with display instruments with special functions, it can also perform quantitative control, over limit alarm, etc., making it an ideal instrument for flow measurement and energy conservation.

2、 Working principle

The structure of the turbine flow sensor is simple. As shown in the figure, when the measured fluid flows through the sensor, the impeller rotates under the action of the flowing fluid, and its speed is proportional to the average flow velocity of the pipeline. The impeller's transport period changes the magnetic resistance value of the magneto electric converter. The magnetic flux in the detection coil undergoes periodic changes, generating a periodic induced potential, that is, an electrical pulse signal. After amplification by an amplifier, it is sent to the display instrument for display.