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1. What are the requirements for installing signal pipelines for measuring gases, liquids, and vapors using differential pressure flow meters? Differential pressure flow meters have different requirements for the installation of signal pipelines when measuring gases, liquids, and vapors. When measuring gas flow, the pressure measuring hole should be located in the upper half of the pipeline, and the differential pressure transmitter should be installed at a position higher than the orifice plate. If this requirement cannot be met, a condenser and drain valve must be added at the lowest point of the pressure system to ensure that there is no liquid in the pressure pipe. When measuring liquid flow, the pressure tap should be opened in the lower half of the horizontal pipeline, and the differential pressure transmitter should be installed under the orifice plate. When the differential pressure gauge has to be placed above the throttling device, a vent valve should be added at the highest point of the pressure pipe to ensure that there is no gas in the pressure pipe. When measuring steam flow, the pressure measuring hole should be opened on the horizontal diameter of the pipeline, and a condenser must be installed near the pressure hole of the orifice plate. After the steam condenses here, it fills the pressure pipe and separates the differential pressure transmitter from the high-temperature steam. Overall, when installing signal pipelines, differential pressure flowmeters need to ensure that the pipeline is dry and clean, the pipeline length is consistent, the pipeline is unobstructed, the pipeline is on the same horizontal plane, and the throttling device and differential pressure transmitter are correctly installed. _600x400.jpg)
2. Reasonable and correct installation position of steam flowmeter
The reasonable and correct installation position of steam flowmeter should meet the following conditions: avoid pipelines with strong vibration: The installation position of steam flowmeter should try to avoid selecting pipelines with strong vibration.
. If it cannot be avoided, vibration reduction measures must be taken, such as installing anti branch vibration short joints, to ensure that the measurement accuracy and service life of the flowmeter are not affected. Flexible installation direction: Steam flow meters can be installed horizontally, vertically, or diagonally, depending on the installation conditions and actual needs on site. However, it should be noted that when measuring liquids, it is necessary to ensure that the fluid flows from low to high to ensure the accuracy of the measurement. When measuring gases (including steam or high-temperature gases), the flow direction is not restricted. Specifically, when measuring steam or high-temperature gases, it is recommended to install the column of the meter body at a 45 ° angle to the vertical direction as much as possible. This can better adapt to the flow characteristics of steam or high-temperature gases, and improve the stability and accuracy of the measurement. Detailed explanation: Vibration effects: Vibration can have a negative impact on the measurement accuracy of steam flow meters and may even cause damage to the flow meters. Therefore, when choosing the installation location, vibration sources should be avoided as much as possible. If unavoidable, appropriate vibration reduction measures should be taken to reduce the impact of vibration on the flowmeter. Installation di