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1. Technical and Economic Analysis of Natural Gas Flow Meter
① Technical Analysis The densities of ABGUG coke oven gas, ABGUX air mixture, and natural gas commonly used in natural gas flow meters are 0.94kg/m
3, 1.8kg/m
3, and 0.75kg/m3, respectively. Considering the most unfavorable working conditions, it is feasible to use DN15mm steel pipes from the bottom to supply the top layer (5 layers) when using LPG mixed with air.. The new installation method mainly increases the cost of the large meter box, and the labor cost is not much different. Compared with the previous installation method of using a DN32mm vertical pipe to hang a meter through the wall, the new method costs about 2800 yuan per household, while the old installation method costs about 2600 yuan per household. ② Economic analysis shows that for newly installed users, the self-excited Hu Ran gas flow meter is installed in the bottom gas meter box using a new installation method, with a uniform 6-layer calculation. DN15mm galvanized steel pipe is used to enter the household.
2. What is the approximate price of a water flow meter?
3. What is the accuracy level of a natural gas flowmeter? Generally speaking, the accuracy level of a flow meter is defined as a percentage, with a level of 2.5 representing an allowable error of ± 2.5%. The accuracy of a flow meter for atmospheric infiltration sampling is considered relatively low. At present, the accuracy of the main flow meters is generally between 0.2 and 1.0. And 1.5~2.5 is relatively poor. The accuracy varies depending on the flow meter and the measuring medium. The measurement accuracy of liquids is better than that of gases, and the measurement accuracy of gases is gene_600x400.jpg)
4. Main features and technical parameters of natural gas flow meters
The main features of natural gas flow meters include: high measurement accuracy: manufactured using the Karman vortex street principle to ensure the accuracy of measurement results.
. Wide range: The dynamic measurement range is wide, with a range ratio of 1:10, suitable for measurement needs in different flow ranges. Low power consumption: The power supply method is flexible, including built-in lithium batteries and external power sources, and the power consumption is relatively low. Easy installation: There are no moving parts inside the instrument, making the installation process simple and fast. Easy to operate: The dashboard displays rich content, including cumulative flow, instantaneous flow, etc., making the operation intuitive and easy to understand. Small pressure loss: The overall structural design is reasonable, effectively reducing pressure loss. Strong corrosion resistance: The instrument body is made of stainless steel material, suitable for measuring corrosive media. The main technical parameters of natural gas flow meters include: caliber range: from DN15 to DN3000mm, meeting the measurement needs of different pipeline sizes. Nominal pressure: ranging from 0.6MPa to 42MPa, suitable for measurement in high-pressure environments. Operating temperature: 180 ℃ to+500 ℃, suitable for measurement under extreme temperature conditions. Accuracy: between ± 0.2% and ± 1.5% FS, ensuring the accuracy of measurement results. Power supply mode: Built in 3.6VDC lithium battery and external 24VDC, providing flexible power
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