The development of the intelligent electromagnetic flowmeter dynamic
In the last ten years the rapid development of the intelligent electromagnetic flowmeter, worldwide sales has become its flow meter first. Development in recent years have focused on broadening the application field, improve performance and increase the function. Such as: lower conductivity value; Reducing power consumption; Lower price, etc. In addition, recent developments have increased since the diagnosis, new types of instrument have come out; The full tube instrument to the lower limit flow rate; Explore using electromagnetic flowmeter measurement principle of on-line measuring the liquid viscosity.
The intelligent electromagnetic flowmeter is a measuring instrument of conductive liquid, with a series of excellent properties, can solve the problem of other flow meter is not easy to solve, such as dirt flow, corrosion flow measurement. SIKE intelligent electromagnetic flowmeter measurement and control technology co., LTD. Product of domestic sensor with Germany imported Siemens transducer matching success, marking technology breakthroughs, is widely used in the future, in the international flow meter export products in the multiple-choice and making good the basis of a certain market share.
Advantages: 1, the measuring channel is smooth and straight, not blocked, suitable for measuring the liquid containing solid particles of solid two phase fluid, such as pulp, slurry, sewage, etc.;
2, no pressure loss caused by the traffic detection, immobile components;
3, measured by volume flow is, in fact is not affected by fluid density, viscosity, temperature, pressure and conductivity changes significantly affect;
4, may carry on the measurement of multiphase flow, high precision, wide range;
5, output electromotive force is proportional with the fluid in the cross section of average flow velocity, and the dynamic range is not restricted;
6, output electromotive force and flow velocity change synchronization, fast response;
7, the current body of forward and flow.
Disadvantages: 1, not measuring liquid conductivity is very low, such as oil products;
2, not measuring gas, steam or liquid containing larger drum;
3, velocity distribution, the measuring precision of straight pipe has certain requirements.
The intelligent electromagnetic flowmeter application field widely, large diameter instrument is more applied in water supply and drainage engineering; Small and medium caliber is often used in high demand or dangerous situations or conditions; Such as iron and steel industry blast furnace tuyere cooling water control, papermaking industry measure paper slurry and the black liquor, strong corrosive liquid, chemical industry non-ferrous metallurgical industry of pulp; Small diameter, small diameter is often used in the pharmaceutical industry, food industry, biochemistry and places of hygienic requirements.
1, the intelligent electromagnetic flowmeter progress since the diagnosis
Intelligent electromagnetic flowmeter is shine and measurement, and the liquid parts easy to corrosion, so more used in corrosive liquid and liquid-solid two to the fluid. This kind of medium easy in sensor measurement site fouling, wear, prevent won affect measurement accuracy, need regular maintenance, when it is necessary to remove the check work. Flow sensor examination affect production, and trouble, so with universal instrument inspection electrode contact resistance, insulation resistance, such as judgment, look to whether really need to unload line processing.
2, the full package intelligent electromagnetic flowmeter
Has a natural flow on the surface of the pipe full intelligent electromagnetic flowmeter, for the full pipe flow measurement, due to fluid cross section area of the tube is changes, so the traffic measurement need to measure the average speed of fluid flow sensor and cross-sectional area a fluid flows through the sensor, which is not the full pipe flow measurement need to measure the tube fluid flow rate and liquid level these two parameters.
Although in recent years, our country's flow meter industry got rapid development, but mainly in the flow meter demand increase and the corresponding flow meter the growth of enterprises. In the aspect of development due to the late start, low starting point, the lack of core technology, is still in a relatively backward stage, in the following aspects: (1) single function (2) low detection precision (3) reliability is not high (4) the difference of openness.
SIKE measurement and control technology co., LTD. Design of the intelligent electromagnetic flowmeter in system programmable devices and all kinds of new type of integrated circuit chip as the core to carry on the design, make full use of single-chip microcomputer system hardware and software resources and programmable device to facilitate modifications to enhance instrument function, improve the measurement accuracy, reliability and openness. Therefore, the objective to carry out not only can effectively improve the performance of electromagnetic flow meter in our country product quality, more widely to meet user requirements, at the same time in industrial control, environmental testing etc has practical application value.