Advantages of throttling differential pressure flowmeter

Advantages of throttling differential pressure flowmeter ① The standard orifice plate structure in throttling differential pressure flowmeter is easy to replicate, simple and firm, stable and reliable in performance, and low in price. It can be used without real flow calibration, which is rare in flow meters. ② Wide range of applications. It is not only suitable for all single-phase fluids, but also can measure some mixed-phase flows, such as gas-solid, gas-liquid, solid-liquid, etc. ③ Suitable for high temperature, high pressure, large diameter and small flow. ④ Insensitivity to vibration, especially superior anti-interference ability. (Limitations of the phantom throttle differential pressure flowmeter ① The measurement accuracy is at a medium level in the flowmeter. Due to the intricate influence of many factors, the accuracy is difficult to improve. ② The range is narrow, because the instrument signal (differential pressure) and the flow rate are Square relationship, the general range is only 3:1〜4:1. ③ On-site installation conditions are relatively high, and if a long straight pipe section (orifice plate, nozzle) is required, it is generally difficult to meet. ④ The pressure introduction pipeline between the throttling device and the differential pressure display instrument is a weak link, which is prone to leakage and blockage And freezing, signal distortion and other faults. The newly developed integrated throttling differential pressure flowmeter, although there are still pressure induction pipelines, but the length is less than 1 melon, thus reducing the defects in this area. Large pressure loss (referring to the hole Plate, Nozzle>

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