Problems with the circulation pump of the plate heat exchanger unit
Thread Content
A beginner has a question for everyone: in a residential building’s heat exchange station, given that the head of the circulation pump is 25 meters, the building height is 35 meters, and the heating coverage radius is 600 meters, what should be the appropriate head for the circulation pump? How is this value determined?
For areas of less than 100,000 square meters, use circulation pumps with a head of 25 meters; for areas of 100,000 to 200,000 square meters, use circulation pumps with a head of 30 meters. Choose the pump based on experience – it’s better not to use pumps with too high a capacity, as this can lead to damage to the pump
Generally, for the circulation pumps in the heat exchange stations of such residential complexes, a pump with a length of around 30 meters is sufficient; there’s no need for something larger
There’s a problem with your approach; since it’s been stated that the building is 35 meters tall, the head pressure required should be determined based on that height.
This post was last edited by wanlirn on 2023-7-7 15:39. Is the building height related to the circulation pump? Have you not understood that the circulation pump and the water make-up pressure control pump serve two different purposes? Such a basic question is a bit embarrassing.
Mainly: First, one needs to consider the head of the pump – factors such as the length of the pipeline and the height of the building, which represent the pipeline resistance. Second, determine the pipe flow velocity. The efficiency of the third pump.
A head of 28~32 meters is sufficient for the circulation pump; it is not advisable to choose a higher value, as this can easily lead to pump damage.
The original poster’s question is vague; they mentioned a circulation pump with a 25-meter range but then asked about the pump’s head pressure.:lol The building is 35 meters tall – if you don’t use the building height to determine the head pressure, then what do you use? Is there anything wrong with what I said? The head pressure in question certainly isn’t that of the main circulation pump. There must be some error in the wording or typing.
This post was last edited by wanlirn on 2023-9-22 07:49. The person in question is asking how the head of 25m was determined. The original poster, just like you, is not clear about the difference between the head required for a circulation pump and that required for a make-up water pump; that’s why they came to the forum with this question. The original poster is also confused – the building height is clearly 35m, so is it feasible to use a circulation pump with a head of 25m? What’s going on? Do you understand now?
You’re right; without him looking closely, he asked about this.:L
The head of the circulation pump is 25 meters, and the building is 35 meters tall; therefore, a pump with a head of 25 meters is sufficient, as the pressure losses are mainly due to the pipes and valves. The building is 35 meters tall, so the head of the make-up water pump needs to be set higher. There are many ways to hydrate, it depends on which method you use.