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Innovation is our pursuit,
Quality is the life of the product！
High quality, perfect service
The quality commitments of the products produced and operated by our company are as follows:
1, permanent magnet synchronous motor pump, motor (including plug-in, attached, water pump), welding machine products, quality assurance period of one year. In the next year of normal use, the quality problem will be guaranteed by our company, and the discretionary receipt of materials and working hours will be exceeded. The transportation costs incurred are borne by the user.
Failure caused by phase loss of the motor, damage to the casing, and other improper use is not a warranty.
2, High-frequency vibrating rod: 80 working hours for super-class vibrating rods. During this period, quality problems occur and parts are replaced free of charge. Quality problems are replaced within 40 hours. (Normal wear is not included in this column)
3, user warranty, etc. can call the company's toll-free hotline 400-82-8822166 at any time, the external users provide accessories service, sorry, do not provide on-site service, if necessary, contact the local dealer to solve.
Solar pump components
One, solar panel
Solar panels are available in single crystal, polycrystalline silicon, thin film photovoltaic cells, and the like. Monocrystalline silicon solar panels have the highest power generation efficiency and expensive price, followed by polysilicon and thin film photovoltaic cells. Generally, the nominal power per square meter is about 150W. The solar panels are generally divided according to the battery system voltage, which are 12V, 24V, 36V and so on. The voltage of the solar panel also has an open circuit voltage, which refers to the maximum electromotive force when the solar energy is not working. The open circuit voltages of the above three specifications are 20-22V, 32-36V, 40-45V, and this temperature is also related to the temperature. Changes vary and vary from place to place, and voltages drop as temperatures rise. Another indicator of solar panels is power, which is proportional to the area of the board. Commonly used 24V operating voltage, the open circuit voltage is 32 ~ 36V board.
The choice of solar operating voltage is critical. If the voltage is high, the controller will be damaged. If the voltage is low, the controller will not work. Each controller has a suitable operating voltage range that must be used within this range. The power level of the solar panel only affects the head and flow after the pump is working. First determine what type of solar panel combination is appropriate, here to distinguish whether it is open circuit voltage or working voltage, pump work must be consistent with the operating voltage.
Second, the common sense of solar panel design
The commonly used voltage, parameters and configuration of solar panels are shown in the table:
Common solar panel specifications
|Type||Specification||Power(w)||Eff efficiency(%)||Open circuit voltage(Voc)||Operating Voltage(Vmp)||Saving battery||AC220v||AC380v||Weight||Size|
Generally, the power of a solar panel of 1 square meter is about 150W. Actually, after passing through the solar energy system, the output is about 108W, which means that it can be used around 108W. The efficiency of the system is generally about 65%, and the highest is 70%. The power generation efficiency is related to many factors such as peak sunshine, installation angle, and ambient temperature. From 9:00 am, 10:00, 11:00, the power generation efficiency is 30%. 45%, 60% up to 70% at 12 noon, and slowly down 60%, 50%, 40% in the afternoon, from 4 to 30% in the afternoon. The solar panel calculated by dividing the pump power by 70% can only have 3 to 4 hours of rated power required for the work, and the rest of the time does not meet the rated working requirements of the pump. operating hours. If the electricity consumption is divided by the power generation efficiency by 50%, the pump can be rated for 6 hours a day and 8 hours a day.
The nominal power and power generation of solar panels are two different concepts.
The power of the solar pump generally refers to the power required for the maximum electricity consumption. It refers to the input power of the pump, which is different from the power of other pumps. The power of other pumps is the rated power of the pump (refers to the output power of the motor). To have an efficiency is the efficiency of the motor. Under the premise of requiring the same power, the efficiency of the permanent magnet synchronous motor is high, and the solar panels used are less. In the pump selection of solar panel power, the first step is to determine the power consumption of the pump, that is, the pump input power is determined, and then divide by the solar panel's power generation efficiency of 65% (up to 70%) or multiplied by 1.5, the result is The nominal power of the solar panels that need to be supplied to the pump. Based on the power of this solar panel, the number of solar panels to be used with how much power and how much power is used is calculated.
Third, pumps and motors, pumps have deep well pumps, submersible pumps, centrifugal pumps and so on.
The main indicators of the pump are the head and flow. The solar pump cannot have the rated head and flow due to the unstable sunlight. It is only the maximum flow and the highest lift. The highest lift is the theoretical value of the maximum pressure that can be achieved when the pump valve is closed. The working lift is selected from 50% to 80% of this value. The maximum flow rate is the flow rate when the pump is open to the maximum and the head is at its lowest. This is different from the marking of other pumps. Other pumps are rated head and rated flow, and power is rated power (output power of the pump motor).
There are three main types of motors: permanent magnet DC brush motor, permanent magnet DC brushless motor (permanent magnet synchronous motor is one of them), AC single-phase or three-phase asynchronous motor.
The permanent magnet DC carbon brush motor is an old-fashioned DC motor with a vulnerable carbon brush, commutator, etc., low efficiency, short service life, and the general carbon brush life is less than 500 hours. This product is gradually being phased out. This is the direct use of solar direct current.
Permanent magnet DC brushless motor, which is a new product in recent years, is the advanced pump motor. Its range includes square wave driven DC brushless motors and sine wave driven permanent magnet synchronous motors, which are 10 to 20% more efficient than the other two types of motors. This type of motor requires a controller to work with, and the power supply can be rectified with solar or AC power.
Single-phase asynchronous or three-phase asynchronous motor is a conventional motor currently used. Generally, AC220V single-phase AC power is used below 2.2KW, and AC380V is used with power >2.2KW. This kind of pump is used in solar energy with an inverter, and the solar energy is inverted into alternating current before it can be used for pumping.
Fourth, brushless motor controller, inverter or AC inverter. These are the converters that convert solar energy into electricity for the pump. These two types of drivers have good function of automatic frequency adjustment according to the change of solar energy and solar energy.
The brushless motor controller converts solar energy into phases, voltages, and currents required to drive the motor to rotate. It is a pulsed AC waveform that operates only for one paired motor. Not as interchangeable as AC drives.
The inverter or AC inverter converts solar energy into 50Hz or 60Hz AC, and then uses AC single-phase or three-phase pump.
Five, pump accessories purchase In addition to the above several necessary pump components, the pump needs some components, including cable, pressure sensor, flow sensor, water level control float switch, water level control line.
The characteristics of the solar pump of Chuangmei's permanent magnet synchronous motor
Our permanent magnet synchronous motor solar pumps are advanced compared to any other manufacturer's products and are characterized by the following:
First, the use of DC brushless high-speed synchronous motor, pump speed between 0 ~ 7200 rev / min frequency conversion, low voltage DC48V 0 ~ 6000 rev / min, is today's advanced DC frequency conversion technology, high efficiency, small size, weight The volume is 1/3 to 1/5 of other similar pumps, and has a good performance price advantage.
Second, fully automatic work, can automatically frequency conversion according to the strength of the sun, adjust the speed, there is automatic start of the sun, no automatic shutdown of sunlight, adapt to the automatic irrigation of the pasture, orchard.
Third, the city's electricity exchange and solar energy automatic conversion. This function is the simultaneous access of solar power and AC power. The pump first runs out of solar energy. It is not enough to replenish with AC power. The solar energy utilization rate is 100%.
Our pumps range from 120W to tens of KW. All of them are DC brushless synchronous motors, all of which are AC solar dual-use.
The high-speed deep well pump is the invention patent of our company. At the same time, there are 11 utility model patents of various types of pumps using high-speed permanent magnet synchronous motor. It also obtained international patents such as Germany and won the 2014 technology innovation of World Media Rongge Industrial World Pump Industry. prize.
The high-speed and high-efficiency brushless synchronous motor is a technological innovation in the pump industry. It shows excellent performance and will gradually replace the submersible pump deep well pump motor of asynchronous motor. The market prospect is very good.
According to the strength of the sun, the workload of the pump is automatically adjusted, and the automatic unmanned working mode, the solar energy utilization rate is more than 5% higher than the general MPPT function.
The company's various models and various models do not require battery access when used as a solar pump, but can work stably. If the battery is connected, it can be powered by the battery when there is no sunlight at night.
This product is advanced solar photovoltaic pump system in the world.
Permanent magnet synchronous motor solar pump purchase and use
According to the voltage:
First, low voltage: This type is directly driven by solar panels. When the power is not enough, the corresponding boards are connected in parallel.
DC12V, power 180W ~ 250W with open circuit voltage Voc22V (working voltage Vmp14 ~ 18V) plate;
DC24V, power 250W ~ 370W with open circuit voltage Voc36V (working voltage Vmp25 ~ 30V) plate;
DC48V, power 550W ~ 750W with two open circuit voltage Voc36V (working voltage Vmp25 ~ 30V) in series;
DC96V, power 900W ~ 1300W four series connection with open circuit voltage Voc36V (working voltage Vmp25 ~ 30V)
Second, high voltage: This type of pump controller can be used for AC and DC dual use. It is necessary to connect multiple solar panels in series to the corresponding high voltage. When the power is not enough, the number of boards in each group is connected in series and then connected in parallel.
DC140V power 550W ~ 1.5KW for AC110V each group with 10 / Voc22V, 6 / Voc36V board,
DC290V power 750W ~ 2.2KW for AC220V each group with 20-23 blocks / Voc22V, 12 ~ 14 blocks / Voc36V board,
DC540V power 2.2KW ~ 60KW for AC380V each group with 35-38 blocks / Voc22V, 20 ~ 24 blocks / Voc36V board
According to the purpose: solar energy automatic working mode, AC solar energy automatic conversion mode, AC solar dual-use ordinary mode.
All three modes do not require battery access. If the battery is connected, it can be powered by the battery when there is no sunlight at night.
First, the solar energy automatic working mode, the model is followed by A: This mode shows that SOLA automatically enters the solar automatic mode when it is turned on, and the startup time is longer, which takes about ten seconds. It can automatically convert the frequency according to the strength of the sun, and can fully utilize the energy of the solar energy to adjust the pump speed so that the maximum water output can be achieved. As long as the power is greater than 40W, the pumping is automatically started. It can adapt to the changing weather, the sun is strong and weak, and it can be automatically turned on the next day at night. It does not need manual start-up and realizes automatic work. It is suitable for automatic irrigation of farms, fruit trees and gardens. The working voltage is also divided into DC24V, DC48V, DC140V, DC290V, DC540V. The power supply of this type of solar energy automatic pump can only be solar panels, and it is not suitable for AC. If you want to use both AC and solar energy, you should use the panel switch mode when using AC power, and automatically turn on the automatic solar mode after power failure.
The controller has three middle and lower terminals on the water level of the water tower. There is no automatic protection for the water in the underground. A float switch is required to realize the waterless protection in the underground.
Second, the AC solar energy automatic conversion mode, the model is followed by AC: This mode is a normal working mode when the power is turned on. The main function is the simultaneous access of AC and solar energy. It can give priority to the use of solar energy when the sun is strong or not at different times of the day. According to the pump power, when the solar power is sufficient, all the electricity is generated by solar energy. When the solar power is insufficient, it is supplemented with alternating current, which can make the utilization rate of solar energy reach 100%. Common control terminal functions include pressure control, water tower water level control, etc. Other functions include various automatic protection and multi-time work control.
Third, the AC solar dual-use common mode, this model is a conventional SZW, without letters behind. This is all high-speed deep well pumps that can be used for AC solar DC dual use. The pump can be connected to AC single-phase or three-phase AC power, or it can be connected to the direct current of solar energy at the terminal of the AC input, and can be connected to any two terminals of the input terminal. The + pole and the pole of the solar energy can be accessed without any division. Common control terminal functions include pressure control, water tower water level control, etc. Other functions include various automatic protection and multi-time work control.
Note, if the above model of the pump is built in, the model will be followed by a T.