Delta Bar Flowmeter Application Notes Mainly should pay attention to the following aspects: 1. Large diameter, low flow rate flow measurement. Before selecting this equipment, the measuring medium parameters such as minimum flow, working temperature, pressure, and pipe diameter shall be accurately provided to the supplier. After the factory calculates the minimum differential pressure, the measurement accuracy can be met according to the lower measurement limit of the transmitter. . 2. The probe for blast furnace and converter gas metering is equipped with a nitrogen purge line to backflush the probe during blast repair to ensure long-term operation. Probes for measuring coke oven gas should be equipped with a steam purge tube to backflush the probe when it is clogged. However, the measurement of the two types of gas used in our factory did not appear to be blocked for more than two years. The backflush pipeline was only used as a backup. 3. It is recommended to use double-sided support for the measurement of pipes with internal diameter of 600mm or more, to prevent the probe from deforming during large-scale operation and affect the accuracy of measurement. 4. The accuracy of the inner diameter of the measuring tube must be provided when selecting this product. Because the design of the probe pressure distribution hole is calculated according to the center of the pipe, if there is a large error in the diameter of the pipe, it will cause the probe and the pipe to be measured to cause misalignment and cause greater measurement error. 5. As a metering flowmeter, it is recommended to use a probe inserted with a full pipe, especially if the straight pipe section does not meet the requirements. 6. Due to the strong anti-blocking ability of delta flowmeter, if the pipeline installed by the flowmeter has the opportunity of stopping the maintenance and repair within one year, it is not necessary to purchase the online plugging device. Generally, the installation of gas blowback can guarantee long-term normal measurement. To save investment. 7. Due to the relatively small flow rate of the coke oven gas and the large pipe diameter, the differential pressure value usually generated is only 100 pascals (based on standard conditions). Since the medium contains a certain amount of impurities, the density of the measured medium is higher than 0.46. Large, so the actual differential pressure than the theoretical differential pressure; at the same time need to use high-precision and high stability of the micro-differential pressure transmitter. 8. There are many different kinds of products in the market. Most of the measuring holes are only 2mm or 4mm. It is possible to measure relatively clean gas or steam, but it is almost impossible to use dirty media, especially gas. Or can only work normally for 2 to 5 months. We have used many other kinds of bar products before, and they are not as good as deltabar. Deltaba's unique profile structure and 8mm measuring holes have brought us many advantages, such as high precision and low straight pipe requirements. And anti-blocking performance is good. Glass Honey Jar,Honey Glass Jars,Small Honey Jar,Small Glass Jars XUZHOU NORTH STAR PACKING PRODUCTS CO.,LTD , https://www.xzns-group.com
Delta Bar Flowmeter Application Notes