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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.The quality guarantee period of permanent magnet synchronous motor pumps, motors (including plug-in type, attached type, water pump), electric welding machine products is one year. If there is a quality problem within one year of normal use, our company will guarantee to keep it in good repair. If the warranty period is exceeded, we will charge for material costs, working hours, etc. as appropriate. The transport costs incurred shall be borne by the user.
Failures caused by motor lack of phase damage, shell damage, and other improper use are not covered by the warranty.
2.High-frequency vibrating rod: The first and super vibrating rods are guaranteed for 80 working hours. If quality problems occur during this period, we will replace parts freely. If there is a quality problem within 40 hours, the old will be traded-in. (Normal wear and tear are not listed here)
3.Users can call the company's toll free hotline 400-82-8822166 at any time for user warranty, and we only provide users outside the province with accessory services. Sorry, no on-site service is provided. If necessary, users can contact the local dealer to solve it.
Solar pump components
First, solar panel
Solar panels include monocrystalline, polycrystalline silicon panels, and thin-film photovoltaic cells. Monocrystalline silicon solar panels have the highest power generation efficiency and is most expensive, followed by polycrystalline silicon and thin-film photovoltaic cells. Generally, the nominal power per square meter is about 150W. Solar panels are generally divided according to the battery system voltage, which are 12V, 24V, 36V, etc. 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 of solar panels are 20-22V, 32-36V, and 40-45V. This voltage also changes with changes in temperature, and it is also different from place to place. The voltage drops as the temperature rises. Another indicator of solar panels is power, which is proportional to the area of the panel. The most commonly used board has a general working voltage of 24V and an open circuit voltage of 32 to 36V.
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 suitable. Here, it is necessary to distinguish whether it is open circuit voltage or working voltage. The working voltage of the pump must comply with it.
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 a.m., 10:00 a.m. and 11:00 a.m., the power generation efficiency is 30%. 45%, 60% up to 70% at 12 noon, and slowly down to 60%, 50%, 40% in the afternoon.And at 4:00 p.m. it is 30%. 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. Under such a conversion, there are about 6 hours of working time in a day. 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). There must be an efficiency in the middle, that 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. Then based on the power of this solar panel, we calculate the number of solar panels to be used with how much voltages and how much power.
Third, pumps and motors. Pumps include 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 marked with the maximum flow and maximum head. The highest lift is the theoretical value of the maximum pressure that can be achieved when the pump valve is closed. The general 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 the lowest. This is different from the marking of other pumps. Other pumps are marked with the rated head and rated flow, and the power is the rated power (the 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., which have low efficiency and short service life. Generally, the service life of carbon brushes does not exceed 500 hours and this product is gradually being phased out. This product uses solar direct current directly.
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 that we currently used. Generally, AC220V single-phase AC power is used below 2.2KW, and AC380V is used with power >2.2KW. This type of pump needs to be equipped with an inverter when it is used in solar energy to convert solar energy into alternating current before it can be used by the pump.
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 changes in the intensity of sunlight 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. It is not interchangeable like AC inverters.
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, etc.
The characteristics of the solar pump of permanent magnet synchronous motor of Chuangmei.
The solar pump of our permanent magnet synchronous motor is the most advanced compared with the products of any other manufacturer, which is manifested in the following aspects:
First, it adopts DC brushless high speed synchronous motor, and the pump speed is variable frequency work between 0～7200rpm, low voltage DC48V 0～6000rpm. It is the most advanced DC frequency conversion technology today, with high efficiency, small size and weight. The volume is 1/3 to 1/5 of other similar pumps, and it has a good performance and price advantage.
Second, fully automatic work. It can automatically frequency conversion according to the strength of the sun, adjust the speed, and automatically turn on when there is sunlight, and shut down automatically when there is no sunlight. It is suitable for automatic irrigation of pastures and orchards.
Third, automatic conversion between mains AC and solar energy. This function is to connect solar power and AC power at the same time. The pump will use up the solar power first, and then use AC power if it is not enough.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.
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 it adopts the automatic unmanned working mode. The solar energy utilization rate is more than 5% higher than the general MPPT function.
The various models and models of our company do not need battery access when used as solar pumps, 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 today.
Purchase and use of permanent magnet synchronous motor solar pump.
Divided by 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
Divided by 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, and 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, and does not shut down wether the sunlight is strong or weak. It can be automatically turned on the next day after it is turned off at night and does not need to be manually turned on, which realizes automatic work. It is suitable for automatic irrigation of farms, fruit forests 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 AC power is not suitable. If you want to use both AC and solar power, you need to switch between the panels when using AC, and it will automatically turn on after a power failure and automatically turn on the solar mode.The controller has three connection terminals for the upper, middle and lower water level of the water tower. There is no automatic protection when there is no water in the underground. A float switch must be installed to realize the protection of the underground without water.
Second, the AC solar energy automatic conversion mode, and the model is followed by AC: The main function is to connect both AC and solar energy at the same time. It can give priority to using solar energy at different times of the day when the sun is different. According to the pump power, when the solar power is sufficient, all solar power is used. When the solar power is insufficient, AC power is used to supplement the solar power, which can make the solar energy utilization rate 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 it 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.