Seawater ultrasonic flowmeter

Approximately 70% of the earth's surface area is replaced by the ocean, and seawater is arguably the most abundant resource on the earth. Therefore, the use of seawater is also extremely important. Seawater can be directly used as production water in industries such as printing and dyeing, pharmacy, alkali making, rubber and seafood processing. Since seawater is widely used, the measurement and control of seawater flow is also essential in industrial processes. Among them, the seawater ultrasonic flowmeter is a widely used flow meter.　　 Ultrasonic flowmeter is a non-contact measurement method, generally has the following characteristics: 　　 1. Simple structure, easy to install, use and maintain. Ultrasonic flowmeters can be clamped on the outside of the pipeline for installation, without the need to modify the pipeline, which provides convenience for temporarily checking the flow in the pipeline. 2. It is suitable for large round pipes and rectangular pipes. In principle, it is not limited by pipe diameter and has good versatility. The same instrument can measure pipe flow of different pipe diameters. It is not necessary to strictly consider pipe material and wall thickness when using it, and its cost is basically It has nothing to do with pipe diameter and is more suitable for occasions with large pipe diameter and large flow.　　3. As long as the liquid to be tested can propagate sound waves, it can be measured outside the tube. This non-contact measurement method has no pressure loss, does not damage the flow field, and the parts are not corroded and worn by the fluid. 　　4. The instantaneous flow rate and cumulative flow rate of the measured fluid can be directly given, and the output can be analog or digital. 5. There is almost no requirement for the medium. As long as the fluid that can propagate sound waves can be measured by an ultrasonic flowmeter, it is suitable for a variety of fluids. In addition to common fluids such as water and petroleum, it is especially suitable for situations where other methods are inconvenient to measure, such as high temperature. High-pressure, corrosive liquid, high-viscosity liquid or gas, etc.; and it can measure non-conductive liquids, and is a supplement to electromagnetic flowmeters in terms of unobstructed flow measurement. 6. In addition to measuring the flow rate and flow rate, it can be used in conjunction with a microcomputer to make it intelligent, and various pipelines and fluid parameters can be set, and other parameters of the fluid, such as composition, concentration, speed, etc., can be set automatically. Comprehensive measurement.　　 The installation of ultrasonic flowmeter is simple and convenient in the installation of all flowmeters. Just select a suitable measuring point, input the pipeline parameters at the measuring point into the flowmeter, and then tie the probe to the pipeline. Although the installation of the ultrasonic flowmeter is simple, but the selection of the measuring point requires special attention. When selecting the measuring point, it is required to select the part where the fluid field is evenly distributed, in order to ensure the accuracy of the side gallery. Generally, the following principles should be followed: 　　1, a pipe section filled with fluid should be selected, such as a vertical part of the pipeline or a horizontal pipe section filled with fluid.　　2. The measuring point should be a straight pipe with 10 times the diameter of the upstream and 5 times the diameter of the downstream, without any valve and other interference.　　3. Ensure that the temperature at the measuring point is within the working range.　　4. Fully consider the fouling condition of the inner wall of the pipe, and try to choose a non-scaling pipe section for measurement. When it is not enough, fouling should be considered as a lining for better side corridor accuracy.　　5. Choose pipe sections with uniformly dense pipes and easy ultrasonic transmission.　　 In addition to the detection and control of seawater flow, ultrasonic flowmeters are also widely used in chemical and chemical fiber, food, paper, sugar, mining and metallurgy, water supply and drainage, environmental protection, water conservancy and hydraulic engineering, steel, petroleum, pharmaceuticals and other industrial fields. If the friends in these industries also want to know about ultrasonic flowmeters, the editor can introduce a place to everyone-Kaidi Sensing Technology Co., Ltd. is a manufacturer specializing in the production of ultrasonic flowmeters. The company has professional technical engineers for everyone. Provide selection guidance, and more than 20 offices covering the country to solve on-site problems for everyone.
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