Selection skills of differential pressure value of V-cone flowmeter and orifice flowmeter

Abstract: V-cone flow meter and orifice flow meter differential pressure value selection skills information is provided by excellent flow meter and flow meter 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 are the details of the article on the selection of differential pressure values ​​for V-cone flowmeters and orifice flowmeters. 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 integrated orifice flowmeter is a differential pressure generating device for measuring flow. It can measure the flow of various fluids in the pipeline with various differential pressure gauges or differential pressure transmitters. The throttling device includes an annular chamber orifice, a nozzle, and the like. The throttling device is used together with the differential pressure transmitter to measure the flow of liquid, steam and gas. It is widely used in petroleum, chemical, metallurgy, electric power, light industry and other departments. Manufacturers of throttling devices all know that when calculating the opening diameter of throttling devices such as orifice flowmeters and V-cone flowmeters according to field parameters, such a problem will be involved, which is the maximum differential pressure of the differential pressure transmitter. How to choose the value? How to choose the differential pressure value and how big should it be? It is related to many factors, such as: uncertainty, front and rear straight pipe sections, etc. Therefore, when calculating the opening diameter of the orifice flowmeter and V-cone flowmeter, you must not blindly select a large differential pressure, but comprehensively consider some relevant factors. 1. When the differential pressure value is large, the minimum straight pipe section required can be shorter. For this feature, for the orifice plate flowmeter, considering various economic factors, the opening value with the largest differential pressure should be selected; and the V-cone The flowmeter is relatively better. If the on-site fluid is Newtonian fluid, the requirements for the straight pipe section of the V-cone flowmeter itself are relatively low. Even if it is shorter, in comparison, it does not exist. 2. The differential pressure value is large. hour,βThe smaller the value, the smaller the recommended minimum Reynolds number. In this case, the actual Reynolds number may be much larger than the recommended Reynolds number, so the flow coefficient tends to be stable and the measurement accuracy is improved. 3. For the differential pressure transmitter, a larger differential pressure is more stable than a small differential pressure. 4. The above descriptions are basically all the advantages of selecting a large differential pressure, but in many cases, when it develops to a certain extent, it will definitely bring certain disadvantages. Those who are familiar with the processing technology of orifice flowmeter and V-cone flowmeter should know that when the differential pressure is too large, the direct consequence is that the opening becomes small, and the pressure loss is relatively large. The plate flowmeter has a large pressure loss. If this is added, the cost due to this pressure loss is considerable for the entire process system; compared with the V-cone flowmeter, it is slightly moderate. Therefore, in our usual production process, we cannot blindly suggest that our users choose a large differential pressure value, but we must be truly responsible for the customer and the enterprise. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Selection Skills for Differential Pressure Value of V Cone Flow Meter and Orifice Flow Meter'
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