What type of flow meter is used to measure the flow rate of boiler feedwater?
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In practical engineering applications, electromagnetic flowmeters are used for most boiler feedwaters； However, according to the requirements for boiler feedwater, its conductivity is very low ； Generally, electromagnetic flowmeters should not be able to measure it ； So, as the quality of the boiler feedwater improves, which flow meter should be used? This post was last edited by marry on 2009-3-25 08:39.]
A throttle device can be used for that. Currently, the practical application is performing very well!
1. Measurement using conventional throttling devices is a very common method; it represents the most effective and appropriate type of measuring instrument. 2. Vortex flow meters can also be used, and they yield good measurement results as well
Our company uses vortex flowmeters, which work very well and require almost no maintenance.
Throttling devices are generally suitable for measurement, and calculation for correction is also convenient.
The throttling devices used in our company work fairly well
I have used orifice plates, vortex flow meters, and Anemometers
On the contrary, most boilers do not use electromagnetic flowmeters, as the feedwater has high pressure and temperature as well as low conductivity; flow measurement devices such as orifice plates or nozzles are generally used instead
Use vortex flow meters to ensure optimal performance. I have 7 sets for boiler feedwater flow measurement, 2 sets of orifice plates, and 5 sets of vortex flow meters. Orifice plates need to be protected from freezing in winter, while vortex flow meters require no maintenance.
Standard orifice plates or V-cone flow meters are used.
Vortex street is more suitable for: victory:
For feedwater measurement in conventional 75t/h steam boilers, standard flow orifice plates are used in most cases
A standard orifice plate or a nozzle flow loss meter can be used, as the flow rate here is very important as it relates to the regulation of the drum water level. Therefore, a 1-to-3 configuration is generally adopted, that is, one nozzle equipped with three transmitters.
Our company uses vortex flowmeters, and they work well, but we’re worried about potential interference
Vortex flow meters can be used; they require no maintenance, but the downside is that their accuracy cannot be verified. Orifice plates can also be used – their principle is simple, and the sensor part can be calibrated, but the downside is high pressure loss. Flow meters of the uniform velocity tube type can be used as well; they have a simple principle, their accuracy can be verified, and they cause low pressure loss. They are suitable for pipeline installation (easy to install and remove)
Orifice plates are relatively simple and cost little; our factory uses orifice plates.
It turns out that our unit used standard orifice plates, but they were replaced with Anubas during the technical upgrade
The process shows that a throttling device can be used.