Screw Solar Water Pump for Irrigation

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Specifications

1.MPPT and DSP chip technique
2. brushless DC motor.
4.C&U bearing

Specificaion
Solar water pump consists of solar panel system, PV water pump controller system and pump.
1. Solar panel system: Solar arrays are in series-parallel ofsolar modules; transfer the solar energy power to electricity to
supply power for pump system.
2. Photovoltaic water pump controller system: it regulates all the pump system, turning instable DC voltage of solar panel system
into stable DC voltage for pump, and regulates the output current in according with sunshine intensity to achieve maximum power point tracking(MPPT), maximizing the use of solar energy.
3. Solar pump system: it consists of pump body, motor, water pipe, cable, protection devices, water level sensor.

Application:
The solar pumps can automatically work in the day, while the sunshine is lower. So it is suitable for irrigation, garden, fountains, family, pastoral grasslands, mountain, especially working in the areas without electricity supply.

Products feature:
1. Water pump controller system has complete electrical protecting device, against under-voltage, over-voltage, over-flow, overload, waterless, etc; also with an automatic switch and water level sensor that can on/off the pump when the well is dry and the water tank is fully.
2. Pump head: 10-180m, Flow rate: 1.8-60M3/h.
3. Working temperature:-20-50

Service life:
Solar panel: 20-25years;
Pump comtroller: 10years
Water pump: 30,000hours

Q:What is the nominal pressure of the hydraulic pump and hydraulic motor?: Rated flow refers to the flow under the rated speed and rated pressure input to the motor.Due to leakage loss, the actual flow of the input motor must be greater than its theoretical flow. Actual flow of motor (i.e. inlet flow) leakage flow = theoretical flow of the motor.

Q:What are the general water pump failure, how to repair?: (4) because of the long latent water and the corrosion of the pipe wall, the water inlet of the water inlet is constantly dropping. When the holes appear above the water, the air enters the water inlet pipe from the hole.(5) there is a crack at the bend of the inlet pipe, and there is a small gap between the inlet pipe and the water pump, which may cause the air to enter the inlet pipe.

Q:How is the pump level of submersible sewage pump determined?: Pump water level must be higher than the water pump top, so that the motor running in the lower water temperature cooling environment, otherwise long-term operation will burn the machine

Q:Does the control cabinet of the fire control pump need to be related to the fire control room?: Automatic sprinkler, which is mostly used in this device or high water tank, the whole set of equipment must meet the most unfavorable point (the farthest the highest point of water) water pressure of the faucet.

Q:The function of centrifugal pump: 6. Stuffing box mainly consists of packing, water seal ring, stuffing box, packing gland and water seal pipe. The function of the stuffing box is mainly to close the gap between the pump shell and the pump shaft. The water in the pump is not allowed to flow outside and the outside air is not allowed to enter the pump. Always keep the vacuum in the pump! When the pump shaft and packing friction heat, it is necessary to rely on water seal to control water into the water ring, so that the filler cooling! Keep the pump running properly. Therefore, in the water pump running inspection process, the stuffing box inspection is to pay special attention to! In the operation of about 600 hours, it is necessary to replace the packing.

Q:Why does the centrifugal pump start with a closed valve and the axial pump starts with an opening valve?: The power of axial flow pump decreases with the increase of flow rate, and it is a steep curve, so the centrifugal pump starts with an open valve.

Q:Difference between pump and compressor: A pump is a machine that transports liquids or pumps liquids. It transfers mechanical energy or other external energy of the prime mover to the liquid, increasing the energy of the liquid. The pump is mainly used to transport water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid metal, and also can transport liquid, gas mixture and liquid containing suspended solid. Pump can usually be divided into three types of displacement pumps, power pumps and other types of pumps according to the principle of operation. In addition to classification according to the working principle, it can be classified and named according to other methods. For example, according to the driving method can be divided into the electric pump and the turbine pump; according to the structure can be divided into single-stage pump and multistage pump; use can be divided into the boiler feed pump and the metering pump; according to the nature of transmission fluid can be divided into water pump, oil pump and mud pump etc.. In accordance with the non axial structure, can be divided into linear pumps and traditional pumps.

Q:Know flow and lift how to calculate the pump power?: P: the density of refrigerant, when the working fluid is water, P =1ETA - pump efficiency, can not find desirable value =0.8N=30x (200/3600) x9.81x1/0.8=20.44 = 20 (kW)(that is, 20kW motors)

Q:How to maintain and repair the booster pump of pipeline pump?: Two 、 troubleshootingfaultReasonRemoval method1. water pump does not produce waterThe water injected into the water pump is not enough, the rotation direction is not right, and the impeller passage is blocked.Pump water into the pump, pass through the impeller runner, adjust the direction of rotation.2. pump flow is insufficientThe pump speed is too low, part of the blockage, the total lift pump is higher than the rated value, the damage to the impeller.Clean the water pump and pipe, replace the impeller, increase the pump shaft revolutions, adjust the outlet valve.3. lack of outlet pressureThere is air in the liquid, the speed is too low, the impeller is damaged and the outlet valve is open.Exclude liquid air, increase the pump speed, replace the impeller, adjust the small outlet valve.

Q:Is the centrifugal pump large or small?: Centrifugal pump, the smaller the better the cavitation.1, centrifugal pump cavitation less, anti cavitation performance is better, the pump cavitation is called the necessary cavitation margin or pump inlet dynamic pressure drop, the smaller the better. Generally speaking, the pump cavitation is the need for cavitation, the pump inlet pipe said effective cavitation margin, that is, the device cavitation margin. For a given pump, at a given speed and flow rate required NPSH is called pump necessary NPSH, also called NPSH, is required to achieve the performance parameters of the pump cavitation, the internal flow and the centrifugal pump is composed of pump head itself, its physical meaning is that liquid drop in pump inlet pressure part degree, is to guarantee the pump cavitation does not occur, with surplus energy exceeds the vaporization pressure head at the inlet of the pump unit weight of liquid. The cavitation must be independent of the device parameters. It is only related to the parameters of the inlet of the pump. These parameters are determined by the geometric parameters at a given speed and flow.

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