V-cone flow meter and pipeline inner diameter matching treatment method

Abstract: The information on the matching method of V-cone flowmeter and the inner diameter of the pipeline is provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. V-cone flowmeter (V-coneflowmeter) is a differential pressure flowmeter developed by our company in the 1980s. Its successful development is a qualitative leap in differential pressure flow measurement. It utilizes the throttling effect produced by the V-cone in the flow field by detecting upstream and downstream. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the details of the article on the matching method of V-cone flowmeter and the inner diameter of the pipeline. V-cone flowmeter (V-coneflowmeter) is a differential pressure flowmeter developed by our company in the 1980s. Its successful development is a qualitative leap in differential pressure flow measurement. It uses the throttling effect produced by the V cone in the flow field to measure the flow by detecting the upstream and downstream pressure difference. Compared with ordinary throttling parts, it changes the throttling layout, from central hole throttling to annular throttling. Practical use has proved that compared with other flow meters, the V-cone flowmeter has the advantages of high long-term accuracy, good stability, small installation conditions, wear resistance, wide measurement range, small pressure loss, and suitable for dirty media. Moreover, the V-cone itself acts as a rectifier of the flow field and becomes an excellent new type of flowmeter with unique performance. A V-cone flowmeter composed of a V-cone sensor and a differential pressure transmitter can accurately measure a wide Reynolds number (8×103≤Re≤5×107) The flow of various media within the range. The nominal inner diameter of the V-cone flowmeter used in the field should be matched with the inner diameter of the pipeline on site, or the difference should be controlled within a certain value range. Consider the general situation of the pipeline first. If the pipeline has a large mutation, then The fluid forms a repeated secondary cycle due to separation here, which will directly affect the measurement results. The following will mainly introduce the relevant regulations and processing methods for pipeline matching: 1. The actual inner diameter of the pipeline is larger than the inner diameter of the instrument, but the difference between the two cannot exceed 3% of the latter. At this time, the error generated is very small, and it is still Within the measurement accuracy range, it has no influence on the measurement and does not need to be corrected. 2. The actual inner diameter of the pipeline is smaller than the inner diameter of the instrument, and the difference between the two is within a certain range, that is, DN15-DN100 < 3%; DN150 < 1%, the error generated is small, and the instrument coefficient can be corrected at this time. Errors will be eliminated. 3. The difference between the inner diameter of the pipe and the inner diameter of the instrument is large, which exceeds the above allowable range, and the additional error generated at this time is also large. Even if the instrument coefficient is corrected, it cannot meet the requirements of measurement accuracy and stability. When there is a situation where the inner diameters of the on-site pipes do not match, the specific solutions are as follows: First, you must find a suitable pipeline and properly transform the original pipeline. In this case, when the implementation is troublesome, you can install a suitable size on site The joint acts as a transition section and ensures that there are enough straight pipe sections, so that the flow velocity distribution can be restored to a sufficient normal state. Therefore, when we usually produce V-cone flowmeters, we must know the specific specifications of the on-site pipeline or the specific specifications of the straight pipe section, so that we can minimize the unnecessary trouble caused by these external factors during production. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'V-cone flow meter and pipeline inner diameter matching treatment method'

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