How to choose a flow meter in a low temperature environment

Abstract: The information on how to select a flow meter in a low temperature environment is provided by excellent flow meter and flow meter manufacturers. In winter, especially in winter in the north, with the decrease of temperature, when the measured medium is transmitted to the transmitter through the measuring pipeline, the phenomenon of freezing, solidification and precipitation of crystallization often occurs when the ambient temperature is too low. lower than the instrument used. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the article details on how to select a flowmeter in a low temperature environment. In winter, especially in winter in the north, with the decrease of temperature, when the measured medium is transmitted to the transmitter through the measuring pipeline, the phenomenon of freezing, solidification and precipitation of crystallization often occurs when the ambient temperature is too low. If the temperature is too low and exceeds the normal working temperature range of the instrument used, it will directly affect the accuracy of the measurement and display of the instrument. For various instrument points such as pressure, flow, liquid level, and temperature, the measurement medium is mostly liquid, which is more likely to cause measurement errors due to the influence of low temperature. In severe cases, it may lead to safety accidents such as poisoning, fire, and explosion. Therefore, in the winter every year, the cold and frost protection of instruments and meters is particularly important. And some large-scale instrument users are ready to deal with it in advance. For example, power plants, petroleum, chemical, water plants, etc. have formulated a system for the cold-proof and anti-freeze work of instruments suitable for their own enterprises, and anti-freeze and sewage treatment of instruments. And so on various aspects of work. In this issue, we will discuss how instrument users can prevent cold and frost in winter. 1. In order to do a good job of anti-freezing of instruments and meters, the selection of products is a key. When installing instruments in the early stage, instrument users should consider the working conditions of the instruments and choose instruments with thermal insulation devices. According to the type and use of the instrument and the geographical location to be installed, put forward the thermal insulation and antifreeze requirements of the instrument, and then submit it to the manufacturer for processing. The following are some selection suggestions given by the technicians: 1) The requirements for the environmental temperature resistance of the signal remote transmission instrument and the display head should be considered, and the environmental temperature resistance requirements of the isolation liquid should be considered with the isolation fluid. 2) Mass flowmeters, metal rotor flowmeters, electric target flowmeters, positive displacement flowmeters, etc. generally do not require separate heat tracing. 3) First of all, the practicability and economy of the instrument are generally considered when selecting a model. Practicality refers to convenient maintenance and accurate measurement, and economy is cheap to put it bluntly. The two should be combined with each other, and mass flowmeters, metal rotors, electric targets, etc. cannot be selected just for convenience and maintenance-free. Therefore, I think the correct selection is only a measure of anti-freezing and anti-condensation. When installing the instrument, the anti-freezing and anti-condensation of the instrument should be fully considered. For example, the pressure guiding pipe should be as short as possible, the sewage should be inspected frequently, and the heat tracing should be facilitated. Otherwise, the best model selection will not work. 4) In some places in the north, the temperature difference between day and night is too large, and it can reach more than -20 degrees at night. The best solution for antifreeze is to choose thermal insulation, heat tracing, maintenance (point inspection, sewage) and other methods. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to select a flow meter in a low temperature environment'

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