Selection of flow measurement methods and instruments

Abstract: The selection information of flow measurement methods and instruments is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. 1 Determining whether to actually install a flow meter If you only want to know if the fluid in the pipeline is conveying flow, its approximate flow, then the use of flow peep windows or flow indicators can achieve this goal at a low cost. They are simple structures. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the details of the selection of flow measurement methods and instruments. 1 Determining whether to actually install a flow meter If you only want to know if the fluid in the pipeline is conveying flow, its approximate flow, then the use of flow peep windows or flow indicators can achieve this goal at a low cost. They are some simple-structured appliances, and often have a movable body (plate, ball, wing wheel, etc.) to show whether the fluid is flowing, and some can know the speed of the flow. Conveying flow, its general flow rate, then the use of flow peepholes or flow indicators can achieve this at a lower cost. They are some simple-structured appliances, often with a movable body (plate, ball, wing wheel, etc.) to show whether the fluid is flowing, some can know the general degree of flow speed, the accuracy is very low, the error is generally between 20-30%, or larger. The domestic flow meter manufacturing industry does not pay enough attention to the publicity of peep windows and flow indicators, and only a few companies provide products, so the design units and direct users ignore such simple instruments, or they want to use them because of the single variety, which cannot be used in various forms. Choose a compatible product. In contrast, in the petrochemical complete sets imported from abroad, mobile peeping windows or indicators are installed in many stations. If the measurement requirements are higher than the above, and the indicated flow error is between 2-10%, install a flow meter. If it is considered that a differential pressure instrument is selected according to the selection steps below, it is not necessary to specially install flow sensors such as orifice throttling. 2 Preliminary selection and measurement issuance After determining that the flow meter must be installed, further understand the usage requirements and various conditions in detail. First, according to the type and characteristics of the fluid, the exclusion method is adopted in the“primary election”The measurement scheme that cannot and should not be adopted shall be considered and analyzed in the second step. 3 Analysis factors According to the schemes determined in the preliminary selection, collect samples, technical data and selection manuals from the manufacturers of the preliminary selection instruments to fully understand the specifications and performance of the instruments; Environmental conditions and economy consider five factors, analyze one by one, and compare lists. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Selection of Flow Measurement Methods and Instruments'

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