Know the head flow rate of the pump and the length of the pipe, how to choose the diameter of the pi

The peristaltic pump is composed of three parts: the drive, the pump head, and the pump tube. First, the pump head type is selected according to the flow rate, after the pump head is determined, the hose size or model is determined according to the flow range, the drive model is selected according to the speed range corresponding to the working flow rate, and then the model of the peristaltic pump is determined.

Then, according to the selected peristaltic model, the corresponding flow regulation method is determined. Rotational type peristaltic pumps such as BT100M generally adjust the flow rate by adjusting the speed by a digital knob. Intelligent flow peristaltic pumps such as BT100LC have a variety of working modes:

Transmission mode, timing mode, quantitative mode, timing mode, his flow adjustment can be directly adjusted on the LCD screen through the input flow rate.

The method of the project is: find a pipeline hydraulic calculation table (there are appendices after the general thermal engineering book), estimate a pipe diameter according to the actual flow rate Check the pipeline hydraulic calculation table, and get the specific friction resistance, the unit is pa per meter. Multiply by the length to get the resistance along the way, multiply it by the local resistance along the way (according to how much the elbow valve fittings are selected, more than 200 meters will be selected to add up to the resistance of the pipeline, the pump Yang Cheng minus the resistance of the pipeline, and the difference between the pump outlet and the end of the pipeline is considered to be the pressure at the end of the pipeline.

Repeat the pipe diameter until the pressure at the end of the pipe meets your process requirements.

If it is necessary to calculate it accurately, it is calculated according to the hydraulic calculation formula.

There is and do the boy to calculate the male hood type.

1. The flow rate is based on the water consumption point of each household of the user, and the water equivalent is counted;

2. The head can be obtained according to the height of the most unfavorable water point plus local loss, delay loss and rich head;

3. According to the flow head, according to the pump you want to choose, you can choose the appropriate model, and you can know the pump power;

4. The pipe diameter can be obtained according to the economic flow rate; It is calculated as follows:

Pipe diameter: dn [4q (v, where: q: is the pump flow m3 h, v: water flow velocity m s, dn: pipe nominal diameter mm

5. The flow rate of water is generally calculated according to the economic flow rate

Pipe diameter (mm): DN 250250, DN 10001000, DN 1600DN, 1600

Flow velocity of inlet water pipe(m s);;

Outlet pipe flow velocity (m s);;

What type of pipeline pump for the 220 has a large flow rate and high head.

SG pipeline pump is a novel pump developed for pipeline pressurization and transportation to solve the low pressure of the pipeline, which has great advantages over the current application of centrifugal pump. Due to the use of advanced mechanical seals, the motor spindle is directly installed with the impeller of the tung branch wheel, so it has the characteristics of high efficiency, power consumption, compact structure, small size, light weight, convenient decoration, etc., and can be used in series according to the needs of head and flow. ISG series pipeline centrifugal pumps have the following main characteristics compared with other types of centrifugal pumps:

1. Easy to install the sail: the pump and the motor are coaxial, no need to adjust the axis, and can be directly installed on the pipeline, without the need to design a special barge pipeline. 2. The pump is a vertical direct centrifugal pump, which can save more than 50% of the floor area and reduce the weight by more than 30% compared with the ordinary stand-alone centrifugal pump.

3. Good economy: compared with ordinary single-stage centrifugal pumps with the same performance, it can save more than 30% of the purchase cost.

Summary. Hello dear. 220 pipeline, flow rate of more than 200m3 h, head of more than 50 meters (of course, smaller flow and higher lift can also be used, just depending on whether the installation location of your site can be realized, because it occupies a relatively large area), that is, you can choose a low single-stage double-suction horizontal centrifugal pump, advantages:

The structure is simple, the relative cost is low, the maintenance is simple and pro, and the <>

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What type of pipeline pump for the 220 has a large flow rate and high head.

Hello dear. 220 pipeline, flow rate of more than 200m3 h, head of more than 50 meters (of course, the flow rate is smaller and the head is higher, but it depends on whether the installation position of your site can be real, because it covers a relatively large area), that is, you can choose a low single-stage double-suction horizontal centrifugal pump, advantages: simple structure, low relative cost, simple maintenance, pro, <>

The above is the answer I have made for you to return to the oak, I am very happy to serve you, please give me a thumbs up, thank you very much for <>

I hope that my balance will help you, and then I hope you are happy every day and have a happy life<>

Good luck always comes with you, oh <>

It's probably the shape of the shape.

Such a dear.

Based on the information given, we can calculate the flow rate of the pump at a head of 25 meters by using the pipe flow formula:

q = 2gh)^ a

where Q is the flow rate of the pipeline, G is the gravitational acceleration, H is the pump head, and A is the cross-sectional area of the pipeline.

Substituting the given parameters into the cokernel formula, we get:

q = 2 * 25)^ a

q = * a

At the same time, we also need to know the cross-sectional area of the pipe in order to calculate the flow rate. Because the size and shape of the pipe are not given, it is not possible to accurately calculate its cross-sectional area. However, assuming that the pipe is circular, its cross-sectional area can be calculated using the following formula:

a = r^2

where r is the pipe radius.

Therefore, if we know the diameter or radius of the pipe, we can use the above vertical fiber excavation formula to calculate the cross-sectional area of the pipe, and substitute the first formula to calculate the flow rate of the pump at the 25 m head of the vertical hood.