The application of radar level gauge in tank farm

Use of radar level gauge tank liquid level measurement is an advanced technology. It with ultrasonic level meter, float type level gauge strip, compared to other liquid level meter, including the static pressure type level gauge has a moving part, wear less risk, less affected by working conditions of oil is small, and the characteristics of simple installation, low maintenance cost. With the expansion of the oil tank farm in huabei petrochemical corporation, the liquid level testing point is becoming more and more application of radar level gauge to replace other liquid level meter, not only can fully meet the needs of the working condition, can also improve the economic benefits. One, the measuring principle 1. The measuring principle of the method of microwave pulse radar level meter in the measurement process, the radar antenna emits microwave pulse, frequency near 10 GHZ, usually in the measured material surface reflection, and accepted by the radar system, will accept the microwave pulse transmission to the electronic circuit, microprocessor to signal processing, identify the microwave pulse produced by the echo in the material surface. Electromagnetic wave is transmitted at the speed of light in the air, radar level gauge distance distance on the surface of the material in the type says D = 1/2 ct type under the available: D a radar level gauge distance distance on the surface of the material; A C T a light pulse of time level as L = E - The D type: L - level; E one by one can always high; D a high shelves. 2. Principle in the process of measurement, linear frequency modulation continuous wave radar level gauge the launch of the microwave antenna is a wave linear frequency modulated continuous wave. When the echo received by radar antenna, the launch of the microwave antenna frequency has changed. According to echo the frequency difference between the transmitted wave and can calculate the distance on the surface of the material. Specifically, in the process of measurement, radar level gauge send a constant amplitude of the microwave signal of linear frequency modulation, the frequency of the resulting output is shown in figure 1. Figure 1 in implementing line frequency for launch, dotted line for the reflection frequency, as the time they travel for & tau; = t - 出现。 Transmission frequency increases linearly with time, and increase the slope K, the launch of the continuous wave encounter when liquid surface reflection, reflection echo than transmitted wave lags for some time & tau; = t - to。 According to the principle of microwave transmission & tau; = D/C at the same time, the lagging behind of echo signal frequency, the reflection frequency between the emission signal frequency and difference frequency of f = Kτ And concluded: D = CfK / 2 by type, you can see that the D and f is proportional to, as long as the measured difference frequency f, can calculate the empty high D, and the liquid surface height is calculated. The need when microwave pulse radar level gauge measuring liquid level measurement is time, and the linear frequency modulation continuous wave radar level gauge measured is the difference in frequency, instead of directly measuring time. In the process of actual measurement, the relative height of tank is not big, electromagnetic wave propagation speed fast, therefore, direct measurement of time lag, make the precision of radar level gauge is greatly reduced. Linear frequency modulation continuous wave radar level gauge overcomes the shortcomings, to improve the measurement precision of the instrument. Second, the performance characteristics and application Fan Zhou 1. Performance characteristics of radar level gauge and differential pressure type, buoyancy type, such as ultrasonic compared to traditional liquid level meter, has the strong adaptability, maintenance is convenient wait for a characteristic, See table 1) 。 Thus, radar level gauge has the following advantages: (in use 1) For accurate measurement: radar level gauge is not in contact with the measured medium, and the working conditions of temperature, pressure and so on a very small effect. ( 2) Easy maintenance, simple operation, less mechanical transmission parts. ( 3) Wide applicable scope: non-contact measuring instrument, in the process of transmission, low dissipation, good directivity, medium more than can be measured. ( 4) Wide range: the transmission of electromagnetic wave speed, and does not need any carrier. ( 5) Simple installation. 2. Range of application because of radar level gauge has more excellent performance characteristics, so more and more applied in the following aspects: ( 1) Tank of high viscosity medium ( Such as bitumen, crude oil, etc. ) The liquid level. ( 2) Poisonous and harmful, the instability of volatile medium level. ( 3) Liquid level volatile dynamic jar of medium level. ( 4) High temperature and high pressure medium level. Conclusion 1. Radar level meter has high measurement precision, out of touch with medium, easy to maintain, installation is simple, and many other advantages, particularly suited to crude oil tank farm and continuous * of measurement of oil tank farm. 2. To reasonably use the radar level gauge measurement of oil tank farm level *, must fully grasp its working principle, performance, installation and some matters needing attention, to ensure its effective operation.

One increasingly popular managerial tactic to improve problem-solving performance of mass flow meter is to increase the connectedness, or what academics call clustering, of the organization

Beijing Sincerity Automatic Equipment Co., Ltd aims to hire several additional experienced marketing professionals that can add to our existing talent-pool and help continue the steady growth of our business.

There's the area of manufacturing mass flow meter that's becoming very important. If you can create those things, you build this closed bond.

Sincerity is one of the top brands in their class when it comes to mass flow meter and coriolis mass flow meter emerson. If you check online, Sincerity is often rated high and reviewed with much praise. we would be very pleased to receive your inquiry.