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Scrubber head motor | Vertical pipe electromagnetic flowmeter | Design considerations
Vertical Pipe Mount Flowmeter Design
Many times when designing vertical pipes, designers often encounter the standard installation requirements for electromagnetic flowmeters: horizontal installation, this project uses vertical pipes, and under space constraints, electromagnetic flowmeters need to be installed on the lift motor. Modified electromagnetic flowmeter enhanced accessories to discuss.
Before Design | Pipeline Wastewater Composition
First of all, many designers did not clarify the following conditions for the use of water when designing the head motor.
1. Water pH: acid water/alkaline water
2. Water temperature: normal temperature/high temperature/low temperature
3. Water quality components: waste water/oily mixed water/pure water/tap water.
Before Design |
The head motor pipe is equipped with a flowmeter
At the motor water outlet: 10D or 20D is the standard distance for using a flowmeter to become a head motor. Why are many designs requiring this?
Reason: When the water passes through the water outlet of the head motor, the flow rate and flow rate at this time have not reached a certain pipe pressure stability, and the water inside will be very large and small, and then when the head motor starts, the water pressure It is very large that the water flows upward through the head motor. At this time, the pipe pressure is very large, but the flow rate is not high. Besides, the distance of the flow meter is too close to the head motor.
Wrong design | The flowmeter distance is too close to the head motor problem
The electromagnetic flowmeter itself has a contact-type electrode sensor. When the distance between the lift motor and the flowmeter is too close, as long as the flowmeter is used to measure the water flow rate directly through the sensor, the pipe pressure is too high or uncertain. When the flow rate is high and low, it is easy to damage the sensor of the electromagnetic flowmeter itself.
Therefore, many technical manuals when using flowmeters will say that the distance from the previous node equipment must be 10D or 20D.
Correct selection of lining protection | lining selection of electromagnetic flowmeter
PTFE or PFA are stupidly unclear: many times it does not mean that PFA is the best lining material
It is especially used when the pipeline itself has backflow water. At this time, F46 in PTFE is the best material.
For the selection of F46 for electromagnetic flowmeters, please refer to the following general description, which will not be discussed separately.
Pay attention to the electromagnetic flowmeter installed in the vertical pipe of the lift motor
- flowBody Orientation
- There is an arrow on the flange body of the electromagnetic flowmeter, please install it correctly according to the direction of water flow
- Exclusive 488 protocol method, exclusive network router settings, to avoid conflicts with the WIFI system of the residents
- display position
- The display, such as FGT's FMG series electromagnetic flowmeter, is designed to change the direction of the display by rotating 360 degrees or 90 degrees.
What is a wet scrubberTraditional scrubbers are capable of removing tiny particles, but the problem is that they consume too much energy, which is much higher than the power required by an electrostatic precipitator or fabric filter. Wet washing has a wide range of applications, and there are more options than fabric filters or electrostatic precipitators, which is a unique feature. The scrubber can handle high temperature gas. It removes both gaseous pollutants and solid particles, and also reduces the possibility of fires and explosions. Therefore, a lot of research and improvements have been made on it to reduce the energy consumption when dealing with tiny particles. These improvements can be mainly divided into the following aspects: 1. Improvement of traditional washing technology; 2. Steam-assisted washer; 3. Electrostatically increased washer; 4. Fiber media washer; 5. Foam washer.
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