Natural gas flow meter selection scheme

Abstract: Natural gas flow meter selection plan information is provided by excellent flow meter and flow meter production and quotation manufacturers. With the tense energy situation in my country, the proportion of natural gas as a clean energy in the energy structure is increasing year by year. The construction of the West-East Gas Pipeline Project has made the coverage of natural gas more and more extensive, which is important for the measurement, accounting and control of natural gas flow. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the details of the article on the selection scheme of natural gas flowmeters. With the tense energy situation in my country, the proportion of natural gas as a clean energy in the energy structure is increasing year by year. The construction of the West-East Gas Pipeline Project has made the coverage of natural gas more and more extensive. As an important tool for natural gas flow measurement, accounting and control, natural gas flow meters have also received more and more attention. At present, the flowmeter products used for natural gas flow measurement in my country are roughly: gas turbine flowmeter, vortex flowmeter, Roots flowmeter and orifice flowmeter. The following flowmeter manufacturers make a simple comparison of the use of these flowmeters. 1. Gas turbine flowmeter Gas turbine flowmeter is the most frequently used natural gas meter at present. Its advantages are simple structure and convenient installation; relatively small size; high accuracy; good repeatability; wide range can reach 15: 1 to 25:1, in the case of high-pressure gas transmission, the range can be further increased; the output is a pulse frequency signal. The disadvantage is that the turbine rotates at high speed, the mechanical friction between the bearing and the shaft, and the service life is not very long, so you should pay attention to regular supply of lubricating oil during use. In addition, if the gas flowing at high speed contains large solid particles, it is easy to break the turbine blades. Therefore, a filter should be installed on the pipeline in front of the turbine flowmeter. 2. Vortex flowmeter Vortex flowmeter is generally used in the internal assessment of natural gas and the measurement of energy consumption in industrial and mining enterprises. It has a reasonable overall structure design, wide dynamic measurement range, small pressure loss, no moving parts, installation and maintenance. Simple, on-site liquid crystal display, pulse, 4 ~ 20mA output or 485 serial communication interface, can be connected with industrial automation systems and many other advantages. Many users know that the biggest disadvantage of vortex flowmeter is the fear of vibration and electromagnetic interference, which should be paid special attention to. 3. Roots flowmeter Roots flowmeter, also known as gas waist wheel flowmeter, can be used not only to measure dry gas, but also to measure wet gas. Roots flowmeter does not have strict requirements for the medium to be measured, and it is insensitive to flow pulse, which makes it have great advantages. But the Roots flowmeter has a big disadvantage, that is, the noise is larger when the waist wheel rotates at high speed. Fourth, the orifice flowmeter The orifice flowmeter is currently the most widely used flow meter for measuring the flow of natural gas. Dozens of special studies and practical applications for natural gas metering have been summarized for decades. In order to eliminate its shortcomings such as low repeatability, narrow range and large pressure loss, technical devices such as microelectronics technology, computer technology, fixed-value throttling parts and standard nozzles are used to further improve the technical level. A cliché: No flowmeter is perfect, just like no one is perfect. Each of these types of natural gas flowmeters has its own advantages and disadvantages. Users can consider their own actual situation when choosing, and select appropriate flowmeter products according to specific working conditions to ensure the correct measurement. . Of course, if you encounter problems in the selection of flowmeters, you can consult, and we will provide you with professional services. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Natural Gas Flow Meter Selection Scheme'

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