Analysis of Small Flow Compressed Air Flow Measurement Scheme

Abstract: The analysis information of the small flow compressed air flow measurement scheme is provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. There are many flowmeters for measuring compressed air. Due to the different production requirements of each enterprise, the flow of compressed air is also different. This article mainly proposes solutions for the measurement of the flow of small-flow compressed air pipelines, hoping to be helpful to the majority of users. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. There are many flowmeters for measuring compressed air. Due to the different production requirements of each enterprise, the flow of compressed air is also different. This article mainly proposes solutions for the measurement of the flow of small-flow compressed air pipelines, hoping to be helpful to the majority of users. For the measurement of small flow compressed air pipeline flow, there are mainly two solutions. One is to use a thermal gas mass flowmeter with low flow measurement lower limit and a wide range; . Let me illustrate with an example. A user's on-site pipeline is DN50, the minimum flow is 10m3/h, and the maximum flow is about 110m3/h. In such a working condition, the ordinary DN50 vortex flowmeter cannot achieve the measurement effect at all. To achieve the measurement effect, it must be awakened and reduced in diameter. The flowmeter can be reduced to DN25 caliber, and its range can be to 8-120m3/h. I will say a few more words here. The vortex street is not resistant to vibration. The main source of vibration in the measurement of compressed air is the compressor and the blower. Therefore, the vortex street must be installed away from the compressor, blower and other vibration sources. At the same time, there is a certain pulsating flow at the outlet of the compressor and the blower, which also affects the measurement of the vortex street. To solve the problem of pulsating flow, in addition to being far away from the compressor and the blower, a buffer tank can also be set at the compressor outlet, and the vortex street can be installed at the back. Generally, the system of the compound compressor is designed in this way. If the on-site vibration is too large, it is inconvenient to install the vortex street or you want to use a better flowmeter, you can use a thermal gas mass flowmeter, its range can reach 0.7-700m3/h. Everyone should pay attention here. With temperature and pressure compensation, it shows the flow under standard conditions, and the flow unit is Nm3/h, which is converted according to the operating pressure and temperature on site. Compressed air often contains some water vapor. If there is a lot of water, install a filter in front of the flowmeter that does not affect the measurement accuracy. Some people say that in addition to these two solutions, the gas turbine flowmeter can also measure compressed air with a smaller flow rate. I personally do not recommend users to use a turbine, because the flow rate of the compressed air is unstable, and the flow rate is too large. damage to the impeller. If you have any questions or other insights about the solution for small flow compressed air measurement, please feel free to discuss. As a professional manufacturer of velocity meters, volumetric meters, differential pressure meters, and area meters, flowmeter manufacturers have been insisting on developing new technologies and products. Summarize the experience of production practice over the years, actively communicate with domestic and foreign flow fields, and strive to develop various flow measurement products to form a large-scale, systematic and diversified production pattern. Looking forward to working with you to make progress together. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Analysis of Small Flow Compressed Air Flow Measurement Scheme'

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