What is the maximum flow rate of a multistage pump?

They don't know that the head of our factory is up to 1000 meters, and the flow rate is up to 1000m3 h

At 1000 meters head, the maximum flow rate is about 800 cubic meters per hour, there may be some factories to do large, this segmental type, generally to add a balance plate, maintenance, maintenance is not very convenient, mainly with high temperature and high pressure fluidization boiler matching.

There are pumps with a flow rate of a few cubic meters per hour to several hundred cubic meters per hour.

Pump Flow Definition: Flow is the amount (volume or weight) of liquid that a pump conveys out per unit of time

A. The volume flow rate (the flow rate usually used) is expressed by Q, and the units are: M s (cubic meters per second), M H (cubic meters per hour), L S (liters per second), etc.

The volume flow rate is independent of the nature of the liquid being conveyed.

Unit conversion: l s=, 1m h=1 3600m s

1 cubic meter = 1,000,000 cubic centimeters, 1 hour = 3,600 seconds.

1 cubic centimeter of seconds = 10 of 6 cubic meters (1 3600 hours).

The power of 3 cubic meters of hours.

cubic meters per hour.

Therefore, according to the above conversion formula, if the parameter of the product is 100 cubic centimeters per second, the conversion result is: 100 cubic meters per hour.

And so on! b. The mass (weight) flow rate is expressed in qm, and the units are t h (tons per hour), kg s (kilograms per second), etc.

The relationship between mass flow rate and volume flow rate is qm=q p

where p - the density of the liquid (kg m, t m), and the water at room temperature p = 1000kg m.

For example, if a pump has a flow rate of 50m h, find the weight of water pumped per hour?

The specific gravity of water p=1000kg m

Solution: qm=qp=50m h 1000kg m =50000kg h=50t h

That is to say, for clean water at room temperature, 1m h = 1t h

The flow rate of a water pump is the amount of liquid (volume or mass) that the pump can convey out per unit of time.

The flow rate of the pump is usually represented by the letter Q, and the flow rate unit of the pump is m3 s (cubic meter seconds), l s (liter seconds), or m3 h (cubic meter hours), and the conversion relationship between them is: 1m3 s = 1000l s = 3600 m3 h.

Design flow: Under the premise of satisfying efficiency, the flow rate is generally used as a reference point, and the energy value-added obtained from the pump inlet to the outlet under different flow rates is cleared, and then the performance curve is drawn.

Rated flow: According to the median value (limit value) of the flow rate obtained by the test, the rated flow rate of the pump will be marked on the nameplate when the pump leaves the factory, and the work efficiency is the highest under this flow data, if the flow rate is deviated from in the process of use, the efficiency of the pump will be reduced, and if the deviation is too much, it will also lead to the phenomenon that the motor burns the bucket skin.

Maximum Flow: The pump is capable of outputting the maximum flow value (peak).

Vertical multistage pump, flow rate 2 tons per hour, head 40 meters, what is the model of the pump.

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Vertical multistage pump with flow rate of 2 tons per hour, head 40 meters, pump type DL2-40. Vertical multistage centrifugal pump is a commonly used industrial pump, which is suitable for conveying clean water or liquids with physical and chemical properties similar to clean water. A flow rate of 2 tons per hour corresponds to a head of 392 kPa for a head of 40 meters, according to which the appropriate model can be selected from the performance curve of the pump.

Here, we have chosen a vertical multistage centrifugal pump with model DL2-40 with a maximum flow rate and a maximum head of 54m, which meets the requirements of flow and head. Vertical multistage centrifugal pump is a kind of high-efficiency and energy-saving fluid transfer equipment, which is widely used in industry, agriculture, urban construction and other fields. When selecting the pump, it is necessary to select according to the working conditions, conveying medium, flow, head and other requirements of the pump, and consider the performance of the pump, the structure of the condensate, the material, the maintenance and other factors.

In addition, for the installation, use and maintenance of vertical multistage pumps, it is also necessary to pay attention to the relevant specifications and requirements to ensure the normal operation and safe use of the pumps. In the process of use, it is also necessary to pay attention to the load, liquid level, temperature, vibration and other conditions of the pump, and regularly check and maintain various components of the pump to ensure the long-term stable operation of the pump. I hope my rough limbs can help you

The difference between the head 20 is to choose a multistage pump or a single-stage pump: 1. Single-stage: the advantage is in the flow; Multi-level:

The advantage is in the head; Not much else; 2. The impeller of the multistage pump is more than that of the single-stage pump, and it can reach a larger head under the same flow rate. 3. Single-stage fire pump: the advantage is in the flow rate; It has the characteristics of large flow rate and low head.

4. Multi-stage fire pump: the advantage is in the head; It has the characteristics of small flow rate and high head. Fire Pump Selection:

When the required pump head is not very high, the flow rate is more, and a single-stage fire pump can be considered; Multi-stage fire pump on the contrary. Therefore, when choosing a fire pump, it is necessary to consider it clearly according to the use of the site.

1. The above icon plate gives the standard parameters of the motor, without knowing the specifications and models of the supporting pumps, even if you know the power, current, speed, efficiency and other conditions of the motor, the flow rate of the circulating pump cannot be calculated.

2. If it is the flow rate of the running pump, the corresponding actual flow can be found out from the working point of the pump characteristic curve, that is, the outlet pressure indicated by the pressure gauge, according to the pump characteristic curve chart (such as the figure below).

The formula for calculating the flow rate of the water pump is: Q=P

where q is the flow rate, the unit is m3 h, p is the shaft power, the unit kw, is the efficiency of the pump, the unit is %, is the constant, h is the head, the unit m