What pump is good for drip irrigation? What kind of water pump is good for drip irrigation with pres

Commonly used water pumps are submersible pumps, centrifugal pumps, deep well pumps, pipeline pumps, etc., and the function of the water pump is to pressurize the water flow to the required pressure of the system and transport it to the water pipeline network. The type of pump required for the drip irrigation system is determined according to the design flow rate and the total head of the drip irrigation system. When the water source is rivers and reservoirs, and the water quality is poor, it is necessary to build a sedimentation tank, and a centrifugal pump is generally used.

When the water source is a well, a submersible pump is generally selected.

Micro sprinkler irrigation, drip irrigationHow to choose the right water pump.

Dear, I'm glad to answer for you. Micro sprinkler irrigation, drip irrigationHow to choose the right water pump. A:

The method is as follows: micro sprinkler irrigation and drip irrigation are two different irrigation methods. From a single dripper, micro-sprinkler irrigation will produce much more water than drip irrigation.

The water output of the micro sprinkler ranges from more than a dozen liters to more than 100 liters. Drip irrigation generally uses 1-8 liter low-flow drippers. Similarly, if 100 spray heads and 100 drippers are installed on one acre of land, the difference in water demand per acre is very large.

Therefore, the use of micro spray pump will be relatively large flow, high head. The pump motor and the main pipe should be matched and enlarged accordingly. The investment cost will also be large.

The drip irrigation water output is small, the pump flow rate and head, and the pipe mouth burner orange diameter do not need to be too large, and the investment cost will be smaller. But correspondingly, if the two pumps are filled with 10 tons of water at the same time, the small pump will take longer, so the drip irrigation time will be extended, and the working time will be increased to make up for the problem of small water output. The most important thing for the water pump is to look at the conditions of your own base, which is limited by electricity**.

Yes, 220V optional water pump is smaller. 380V voltage, but also in the power range to choose the corresponding load of the pump. If there is no electricity, you can choose to use a diesel engine or gasoline engine, or a modified small water pump driven by a battery.

Hope mine can help you!

Selection method:

The pump selection is mainly based on two parameters: head and flow.

Head, also known as total head, is the height of the pump that can lift water, including the net head (the height difference between the water level of the inlet pool and the sprinkler) and the loss of the head of the pipeline, the symbol h, the unit meter (m).

Flow rate - the amount of water that can be lifted by the pump in 1 second or 1 hour, code q, in liters and seconds (l s) or meters 3 hours (m3 h).

Different pump types can be selected according to the head from low to high.

1) The head is low, and ordinary centrifugal pump is used.

The water belt micro spray lift is the lowest, the working pressure of the belt is generally less than 10 meters, the highest is 20 meters, plus the pipeline loss, the pump head is only 15 meters 25 meters. The working pressure of ordinary micro sprinkler irrigation or drip irrigation is about 20 meters, and the pump head is selected from 25 to 40 meters. ISW ordinary centrifugal pump is selected, and the caliber of the pump is 50 or 65, that is, the flow rate is about 18m3 h or 36m3 h.

Small family business scale (3 10 acres), using the "one pump and one belt" mode, you can choose a diameter of 25 40mm pump, the head is about 15 meters, the flow rate is 4 10m3 h, the power, try to use the motor pump, only when there is no power line to use the gasoline engine pump.

2) The head is moderate, and a special pump for sprinkler irrigation is used.

Field sprinkler irrigation, the irrigation unit is about 50 acres, and the pump lift is 45 meters; The irrigation unit is about 150 acres, and the pump head is 55 meters, and there are mature sprinkler pump units. 50bp-45 type: diameter 50, head 45 meters, flow rate 20m3 h, power 6 horsepower or type:

Caliber 65, head 55 meters, flow rate 36 40m3 h, power 12 hp or 11kw.

3) The head is high, and the multi-stage water pump is selected.

For sprinkler irrigation in mountainous areas, the head calculation can also be simple, that is, the plain head + the relative height of the mountain, such as the mountain height is about 50 meters, and the pump head is about 100 meters. When the head is greater than 55 meters, a multistage pump can be selected, which is connected in series by a multi-stage impeller, and the head can reach more than 200 meters, and the efficiency is still the efficiency of a single-stage impeller, which will not be reduced.

Of course, when the head is 90 meters, one kilowatt-hour of electricity can only lift 2 m3 of water, when the head reaches 180 meters, one kilowatt-hour of electricity can only lift 1 m3 of water, whether it is cost-effective to do sprinkler drip irrigation needs to be analyzed economically, and my practice currently has a maximum lift of 104 meters.

Of course, the high-pressure water pump is good, because the water pump is to fill the pressure tank with water, and the water pump will always work if the pressure is not reached.

1. The main pipeline is indeed thinner, which increases the unnecessary head loss, and the main pipeline is as thick as possible. But it's not that the current DN63 can't be used, it's just that the head loss is larger.

2. The head of the oil-immersed submersible electric pump is 30 to 40 meters, depending on how high your micro-spray should be sprayed, and this high and low value can be selected according to the maximum growth height of intercropping crops in the orchard.

3. The flow rate of the oil-immersed submersible electric pump is not easy to choose, because the aperture and hole spacing of the micro-spraying belt have different specifications, and it is recommended to refer to the instructions of the micro-spraying belt.

4. Because the pore size of the micro-sprinkler belt is very small, it is recommended to install a Y-type filter with a larger mesh at the outlet end of the pump (if it is drip irrigation, a filter with a smaller mesh should be selected), which saves a lot of clogging trouble.

First of all, it is necessary to determine the head you need, how much is the flow rate--- large flow, axial flow pump for low head, centrifugal pump for high head. Small flow is generally used with centrifugal pumps, and drinking water is generally with high-lift centrifugal pumps or vortex pumps.

Depending on the situation, how big is your land area? What is the flow rate of the feedwater? And so on and so forth. It is recommended that you see if there is a pump near you that you need, and you can determine the pump you need.

It mainly depends on the source of your water.

If you pump water from a canal or a shallow well, you can use an axial flow pump, which has the characteristics of high efficiency, small size, simple maintenance, etc., and is widely used in farmland irrigation, however, its head is generally not high, and the commonly used axial flow pump lift does not exceed more than ten meters.

If you pump water from a deep well, you have to use a submersible electric pump, which is a multistage centrifugal pump, which is more expensive and has a small flow, but the head is very high, and the head of several hundred meters is very easy and can be used in a very deep well.

1. Axial flow pump: It can build its own canal or pool, connect to the river through the axial flow pump and connecting pipes, and is widely used in farmland irrigation, and can be drained in time during flood disasters to reduce the risk of annual harvest loss.

2. Self-priming pump: self-priming pump can be placed by the pool or river, the self-priming pump generally has a suction stroke of 6-8 meters, suitable for different depths, and then can irrigate farmland with high efficiency through sprinkler irrigation or drip irrigation pipeline.

Fochai o ( o Pump Industry.

How big do you need and what model?

1. Definition of irrigation pump:

Centrifugal pump. Before starting, the supplied liquid must be filled with suction lines, impellers and pump casings, and this operation is called filling the pump.

Second, the main points of the pump filling method:

1. Tap water filling method.

For the water pump with low water quality requirements, or other material and liquid pumps with tap water irrigation pump that have little impact on the conveying medium, tap water can be used for irrigation, which is very convenient, as shown in the following figure:

2. Reverse flow filling method.

The backflow irrigation system uses the bucket pure accumulation liquid in the high tank on the discharge side to carry out the reverse filling, and its piping is shown in the figure below. In this way, a manual quasi-pump is used for the first start.

3. Downstream filling method.

This method is used in many occasions in chemical pump devices, and it only needs to make the position of the pump lower than the liquid level of the suction tank (tank), that is, the so-called perfusion. Since the liquid is always stored in the pump during this installation, there is no need to refill the pump when it is turned on. When in use, a valve must be installed in the suction line to facilitate the maintenance of the pump.

This valve should be selected with a gate valve,, etc. with low resistance, and do not forget to open it before the pump starts.

4. Pumping and sucking method.

It uses the pumping equipment to remove the centrifugal pump and the air in the suction pipe to suck the liquid up. The pumping equipment can be used with hand presses and motorized vacuum pumps.

It is often a water ring vacuum pump) stove state, as shown in the figure below. The vacuum pump suction port should be connected to the highest part of the pump or the drain pipe to remove all the gas in the pump.

Through the process of filling the pump, the air in the pipe and pump is removed, which is conducive to the flow of liquid.

Before the centrifugal pump is started, the suction line, impeller and pump casing must be filled with the liquid to be fed, this operation is called filling the pump.

The water consumption intensity is calculated according to 5mm d, and 3 acres of land need to be irrigated 3*667* per day.

Then according to the plan to open the pump for a few hours a day to determine how big the pump to use, such as open the pump for 2 hours a day, the pump flow rate should reach 5m3 h.

As for the head, as long as the water source is on the ground, it is enough to leave a 10m of surplus head above the ground.

Drip irrigation pump and pipe with hello dear, micro sprinkler irrigation and drip irrigation are two different irrigation methods. From a single dripper, micro-sprinkler irrigation will produce much more water than drip irrigation. The water output of the micro sprinkler ranges from more than a dozen liters to more than 100 liters.

Drip irrigation generally uses 1-8 liters of small fiber talk positive flow drippers. Similarly, if 100 sprinklers are installed on an acre of land and 100 drippers, there is a big difference in the water demand of an acre of land. Therefore, the use of micro spray pump will be relatively large flow, high head.