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E-mail
2849045365@qq.com
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Phone
17521729161
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Address
Hutai Road, Baoshan District, Shanghai
Shanghai Taoran Industrial Automation Equipment Co., Ltd
2849045365@qq.com
17521729161
Hutai Road, Baoshan District, Shanghai
E+H level gaugeSuitable for liquid level measurement of various media in systems and industries such as petrochemicals, metallurgy, power, pharmaceuticals, water supply and drainage, and environmental protection. The medium is mainly composed of coal ash and water mixed after coal reaction, namely black water. The process conditions for this medium are usually a temperature of 200 ℃, a pressure rating of 10.0MPa, and a coal particle content of 8%~10%. Such process conditions impose strict requirements on flow meters, which are difficult for general flow meters to meet. The E+H level gauge generally uses a wedge-shaped flowmeter to measure this high viscosity and high wear fluid. Due to the structure of the wedge-shaped flowmeter having an angular streamline less than 90 degrees, as shown in Figure 2, it can ensure measurable throttling effect and downstream flow state. However, at the same time, when the fluid passes through the wedge-shaped flowmeter, it will rapidly shrink at the edge of the throttling block, and then quickly recover pressure, generating strong vortices at the edge. This vortex in the E+H level gauge not only flushes the back of the wedge edge, but also reverses the throttling edge, causing strong wear and reducing measurement accuracy.
E+H level gaugeThe flow state smoothly enters the throat from the contraction section, which can greatly reduce wear. At the same time, the rectangular flowmeter adopts a streamlined throttling channel with a throat of appropriate length, which plays a rectifying role and effectively flattens the fluctuations of the fluid. In addition, the pressure recovery section at the rear extends this streamlined channel, so that the entire flowmeter will not generate vortices and vibrations inside, avoiding wear caused by vortices. The rectangular flowmeter can be used continuously for 3 years with unchanged measurement accuracy, and its service life is more than 4 times that of the wedge-shaped flowmeter. The special structure of the flowmeter ensures that the flow coefficient is linear and stable over a wide range of Reynolds numbers, making the E+H level gauge accurate for both high and low flow rates. In the polycrystalline silicon industry, hydrogen is an industrial gas that is difficult to measure. The hydrogen feed rate of the reduction furnace is controlled by a pre-set ratio to regulate the feed control valve. If the measured flow rate fluctuates greatly or the flow rate is small and cannot be measured, it will cause the regulating valve to frequently operate, thereby affecting the quality of the silicon rod, and even causing the E+H level gauge to stop abruptly due to rod reversal; If the flow measurement is not accurate, it will lead to incomplete blowing and replacement, which poses a safety hazard.
E+H level gaugeNormally, a mass flow meter is used to measure hydrogen gas, but it requires reducing the diameter to increase the flow rate, resulting in significant pressure loss. Additionally, due to the fast flow rate at the outlet of the flow meter, there is a possibility of danger, and a long straight pipe section is required at the back end of the flow meter to restore the flow rate. Flow meters are widely used in industries such as coal chemical, polycrystalline silicon, and power. It has stable operation, simple structure, long service life, moderate accuracy, and low maintenance, and can be used for measuring various media. Through performance analysis of rectangular flow meters, the E+H level gauge shows that its measurement accuracy is about 4 times that of traditional throttling devices, and its long-term pressure loss is about 1/3 of that of traditional throttling devices. At the same time, the flow meter requires a small straight pipe section ZUI, which can reach 1.5D, thus eliminating a large number of straight pipe sections. Due to the lack of moving parts, installation and maintenance are relatively easy.