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1. Working principle and advantages and disadvantages of bundled ultrasonic flowmeter
Working principle of bundled ultrasonic flowmeter (also known as external clamp ultrasonic flowmeter): Generally measured by time difference method, Doppler method is rarely used now. That is, when the ultrasonic beam propagates in a liquid, due to the flow of the fluid, there will be a slight difference in the propagation time of the ultrasonic wave in the forward and reverse directions. This small propagation time difference is proportional to the flow velocity of the liquid, thus measuring the flow rate of the fluid. Advantages:
1. Due to being tied to the outside of the pipeline, it does not damage the fluid inside the pipeline, does not affect the process flow, and can be disassembled and assembled at any time;
2、 Due to being tied to the outside of the pipeline, there is no pressure resistance issue;
3、 Not in contact with the medium, ignoring the corrosiveness of the medium, measuring a wide range of media;
4、 Compared to large-diameter pipeline flow meters, the price is much cheaper; Disadvantages:
1. Cannot withstand high temperatures, generally not exceeding 160 degrees;
2、 Small caliber (below DN15) cannot be installed for measurement;
3、 Compared to segmented and scattered insertion ultrasonic flow meters, the accuracy and signal strength, quality, pipeline material, and installation standards of the signal need to pass through the pipeline wall, which are all related to the error caused by more factors. ~~~~~~~~Professional manufacturer and seller of flow meters, welcome to discu
2. Which electrode material electromagnetic flowmeter can be used for measuring the flow rate of iron sulfate?
The flow measurement of iron sulfate can use an electromagnetic flowmeter, and the electrode material can be tantalum electrode or platinum electrode..
3. What are the imported flow meters? Could you please tell me how many brands of imported flow meters there are? Thank you! _Baidu Emerson EMERSON (including sub brands: Rosemount Electromagnetic, Rosemount Vortex Flow Meter, Rosemount Orifice Flow Meter, Rosemount Annubar Flow Meter, High Precision Mass Flow Meter, Daniel Ultrasonic Flow Meter, etc.); Yokogawa YOKOGAWA (Electromagnetic, Vortex, Mass, Rotor, etc.); Enders Douhou House E+H (Electromagnetic, Vortex, Mass, etc.); Cologne (Electromagnetic, Vortex, Mass, Ultrasonic, etc.); ABB (Electromagnetic, Quality, etc.); Siemens (electromagnetic, quality, ultrasonic, etc.); Elster (commonly used in natural gas industries such as turbines, waist wheels, and ultrasound); Sun Yan loves Tuoli (sold mainly in the natural gas industry such as turbines and waist wheels); FCI (Thermal Gas Mass Flow Meter, etc.); Brooks (thermal gas mass flowmeter, etc.); Hills (hot gas mass); Flaxson (specializing in ultrasound, both gas and liquid); Wait. Do we need to continue talking Hehe4. Which is better, Rosemount ultrasonic flowmeter or Korean Changmin flowmeter
Both are two obscure and chaotic brands. The former is just selling a brand or bending the core of domestic products, boasting about Korean technology all day long. Personally, I think we can choose FLEXIM or GE
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