Liquefied natural gas（LNG）As a clean and efficient energy source, it has become a new hotspot in the global energy market and an important part of international natural gas trade. In recent years, in the country “Blue Sky Plan” Under policy guidance, China's liquefied natural gas receiving station industry has made significant progress. As of now, there are various sizes in the country, more than one large building. LNG The receiving station has been put into operation, and there are also twentyThe remaining buildings are being intensively constructed or expanded.
MEZOLEN As a traditional Spanish brand in the industrial field, we specialize in producing ultrasonic flow meters and apply advanced ultrasonic technology to measure flow conditions. MEZOLEN Ultrasonic Flowmeter has a unique flow calculation method that can combine the sound velocity of the medium with process parameters for high-precision time calculation, thereby accurately obtaining the medium flow velocity and ensuring accuracy in process measurement.
Ultrasonic flowmeter in LNG Application advantages of receiving stations in different scenarios
1. Measurement of seawater flow rate
The seawater plays an important role in the process flow of the receiving station. The material of seawater pipelines is usually fiberglass, which is difficult to weld and poses a great challenge to the installation of traditional flow meters; Seawater itself has the characteristic of high corrosion. After various measurement methods, it has been demonstrated that the external clamp ultrasonic flowmeter is the most suitable equipment for measuring at this point; Due to the involvement of seawater, the production process also has special requirements for interlocking control. Once the seawater flow rate falls below the lower limit, it will interlock and stop. So it is required that the flowmeter should have SIL2 functional safety certification, because of these measurement difficulties, the advantages of ultrasonic flow meters lie in this is particularly prominent in the application of seawater in receiving stations.
2. LNGflow measurement
Due to its unique physical properties, -162.5℃ Low temperature poses a great challenge for both transportation and measurement. Using patented technology , DTC Communication poles can convert extremely low medium temperatures into the normal operating temperature of sensors, without considering frost caused by temperature differences; Secondly, Ultrasonic Flowmeters do not need to consider pressure loss, and both pipe section and insertion types require minimal modifications to existing pipelines, thus solving the problem, Ultrasonic Flowmeter measurement provides the best solution.
3. Measurement of Burning Torch Gas
Waste that needs to be burned and emitted in the receiving station, it exists in large quantities and has distinct characteristics, with temperatures usually as low as-127℃.
When there is no emission, the flow rate is very small or even non-existent. Once it is burned and emitted, a large amount of emissions will be generated, so the range of flow rate requirements is relatively high. Among numerous flow meters, Ultrasonic Flowmeter is recognized as the flowmeter with the largest range ratio, reaching up to 4000:1. Such a broad range ratio is sufficient to cope with the flow rate of torch combustion emissions; In addition, the maintenance of ultrasonic flow meters is small, and the sensor can work normally even at such low temperatures. At the same time, for situations where maintenance cannot be stopped, online plugging and unplugging functions can also be achieved. Ultrasonic flowmeters are fully capable of handling process situations such as large pipe diameters, complex components, and dirty media.
