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technical article
Plastic tube float meter with high insulation safety and measurement accuracy index
2012-3-21 17:16:00

和测量精度指标,因而可以替代传统依靠油、气绝缘的互感器。 Soon, a kind of "equal-potential cavity" partial pressure structure suitable for electronic low-power partial pressure appeared in China. It has high insulation safety plastic tube float flow meter and measurement accuracy index, so it can replace the traditional oil and gas reliance. Insulated transformer. This technology is particularly suitable for the dry type of high-voltage and ultra-high-voltage voltage divider structures. It is a new type of electronic voltage transformer that has grown out of China. In order to overcome the measurement performance susceptible to temperature and vibration stress, the optical solution has been improved from a ring magneto-optical glass to a fiber-optic sensor, making the optical solution a new technical platform, closer to the practical requirements. A few types of electronic transformers known as fiber optics have been tried out, and they need to further overcome the problems of complex structure and high cost.
Small signal transmission replaces high power output. Miniaturization and low power of transformers can reduce the weight of tens of kilograms or even tons to a few kilograms. 代替油、气绝缘。 Optically isolated plastic tube float flowmeter replaces oil and gas insulation. Independent high-voltage transformers use optical fiber digital connections once and twice. Optical isolation replaces complex and expensive oil and gas insulation systems. This is a revolutionary change. The higher the voltage, the higher the cost-effectiveness of the transformer. Digital output replaces analog output, which is convenient for subsequent network connection and intelligent processing. It adopts optical fiber transmission and has stronger ability to resist electromagnetic interference. Network data sharing replaces multi-winding parallel wiring. Single-point measurement data of electronic transformers can be transmitted via Industrial Ethernet, so they are shared, and a large number of parallel cables can be omitted at the power station.

锥管等主部件均由AS、ABS塑料制成,有较好的耐腐性能,产品还具有结构合理、体积小、重量轻、锥管不易破碎等特点,可广泛应用于化工、环保、食品等工业部门。 The main components such as the plastic tube float flowmeter cone tube are made of AS, ABS plastic, which has good corrosion resistance. The product also has reasonable structure, small size, light weight, and the cone tube is not easy to be broken. Chemical, environmental protection, food and other industrial sectors. Principle and structure: The main measuring element of the flow meter is a conical plastic pipe with a small end facing down and a large end facing up, and a float that can move up and down inside. When the fluid flows through the conical plastic tube from bottom to top, a pressure difference is generated between the upper and lower parts of the float, and the float rises under the action of this differential pressure. When the force that causes the float to rise is equal to the combined forces of gravity, buoyancy, and viscous force, the float is in an equilibrium position. Therefore, there is a certain proportional relationship between the flow rate of the fluid flowing through the flowmeter and the rising height of the float, that is, the flow area of the flowmeter. The position height of the float can be used as a flow measurement.