Use and promotion of electromagnetic flowmeter
The intelligent electromagnetic flowmeter is a fully intelligent electromagnetic flowmeter developed by our company using advanced technology at home and abroad. Its all-Chinese electromagnetic converter core adopts high-speed central processing unit, which has fast calculation speed, high precision and reliable measurement performance. The converter circuit design adopts the latest international technology, the input impedance is up to 1015 ohms, the common mode rejection ratio is better than 100db, and the external interference and 60Hz/50Hz interference suppression ability is better than 90db, which can measure the lower conductivity fluid medium flow. The sensor adopts a new non-uniform magnetic field technology and a special magnetic circuit structure. The magnetic field is stable and reliable, and the volume is greatly reduced, the weight is reduced, and the flowmeter has the characteristics of small size and light weight. Adhering to the enterprise spirit of "seeking truth, hard work, innovation and development", we insist on "customer first, technology first, high quality, first-class service", we will provide you with first-class products and first-class service.
Gas turbine flowmeter and screwing vortex flowmeter measurement difference
Keywords: gas turbine flowmeter, Tianxin gas turbine flowmeter, gas gas turbine flowmeter
The gas turbine flowmeter has good repeatability and is the preferred flow meter for trade settlement. The gas swirling vortex flowmeter is generally repeatable.
The gas turbine flowmeter can obtain very high frequency signals with strong signal resolution. The frequency of the gas swirling vortex flowmeter is very low, and the smaller the diameter, the lower the signal resolution. The measurement error is to be measured.
The gas turbine flowmeter has a wide range, generally 40:1~20:1, and has a wide measuring range, which can be suitable for occasions with large flow changes. When natural gas is delivered, the flow changes are generally large and, therefore, are particularly suitable for natural gas measurements. The latter range is medium, generally 15:1 to 10:1, and the measurement range is slightly narrower. When measuring gas, it is more suitable for occasions where the flow rate does not change much.
In terms of seismic performance, gas turbine flowmeters have better resistance to pipeline vibration. The gas swirling vortex flowmeter is susceptible to pipeline vibration and should be taken care of when using it.
However, since the volume of condensed water in the wet steam is relatively small, the flow of excess water in the ascending pipe often appears as an annular flow structure, but when the amount of water is particularly large, it also appears as a ring with fibers. Flow structure. Among them, the fibrous fluid is actually a condensed water. Flow in a vertically descending pipe: In a vertically descending pipe, the structure of the gas-liquid two-phase flow is similar to that of a vertically ascending flow, but differs not only in the opposite flow direction but also in the case of the same average flow velocity. The flow rate of the liquid in the vertical drop pipe is much faster than the flow rate of the liquid in the vertical rise pipe.
Second, steam vortex flowmeter measurement considerations
Vortex flowmeters measure steam. Accurately arrange the steam traps accurately: People have long discovered that when the steam has more water, the vortex flowmeter will have a "leakage pulse" phenomenon, that is, in the case of a stable steam flow rate, the vortex flow It should have a stable pulse output proportional to the flow rate. But sometimes it is found that the output pulse of the meter is inexplicably less. The distribution of the output pulse recorded on the two-dimensional coordinates can also be clearly seen. The pulse that should be approximately evenly distributed is one less at a place. Pulses, in severe cases, are a lot less pulses, and in the worst case, there are no pulses at all. This may be related to the formation of a vortex column by impinging on a large volume of droplets having a non-uniform distribution on the vortex generator.