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In the water ring vacuum pump industry, the market still generally adopts the grid direct drive motor method, and the vacuum pressure cannot be adjusted according to production needs. Even in high vacuum conditions, the motor still runs at full speed, resulting in a significant waste of energy. Vacuum pump is the high energy consumption equipment of most paper-making, paper support, foam, paper plastic and blister packaging enterprises. As the user's gas consumption decreases, energy efficiency will significantly decrease, which means that useless work will increase significantly. At present, frequency conversion technology is used to solve this problem, and when the air consumption reaches a certain average value, the vacuum pump motor is maintained at a corresponding speed, which is more energy-saving than conventional vacuum pumps.
With the rapid development of power electronics technology, new motor control theories, and rare earth permanent magnet materials, permanent magnet synchronous motors have been rapidly promoted and applied. The permanent magnet energy-saving vacuum pump uses a national first-class energy efficient permanent magnet servo motor. This product is driven by a permanent magnet motor, combined with advanced frequency conversion control, and strives for excellence in configuration and environmental protection. It is truly a new type of equipment that achieves high efficiency, energy conservation, and environmental protection.
The permanent magnet motor using frequency conversion technology can significantly reduce energy consumption while fully ensuring the user's gas demand, truly achieving on-demand gas supply.
A permanent magnet motor with extremely high energy efficiency. When operating at full load, the energy efficiency of a permanent magnet motor is generally over 9% higher than that of a conventional asynchronous motor. As the speed decreases, its energy efficiency remains basically unchanged. However, as the speed decreases, the energy efficiency of an asynchronous motor will significantly decrease, even to less than 50%.
Greatly improving the efficiency of post maintenance and upkeep; The hard pipe connection reduces the aging of the pipeline due to time, and the specially designed motor cooling air duct further reduces the temperature rise of the motor.
The components used in this product should be selected from internationally recognized brands with low energy loss as much as possible. Through accurate selection of various components and precise calculations by designers, the relative energy consumption has been increased by about 30% compared to low-end domestic products.
High efficiency, eliminating system losses and improving efficiency by 5-8%. High power factor, large torque inertia ratio, reduced stator current and resistance losses, measurable rotor parameters, and good control performance. At present, our company's permanent magnet motor used in vacuum pumps can fully meet the level 1 energy efficiency standard.
Compact structure, small size, light weight, flexible and diverse size and shape, high accuracy, and fast response.
High starting torque: The starting torque and overload capacity of permanent magnet motors are both one power level higher than three-phase asynchronous motors. The ratio of maximum starting power to rated torque can be more than 3 times, while general asynchronous motors only have 1.6 times, as shown in the following figure:
When the vacuum pump is started, the current is about 3-6 times the rated working current. If it is started frequently, it will waste a lot of electrical energy. However, the variable frequency type does not start and stop frequently, and the start is a soft start. The maximum current does not exceed the rated working current, and there is no energy waste. At the same time, it greatly reduces the impact on power grid equipment and will not cause damage to electrical equipment.
Permanent magnet motors can maintain extremely high motor efficiency at low speeds, ensuring significant energy-saving advantages when the user's air extraction volume is small.
Variable frequency range 25% -100%,
Compared with ordinary water ring vacuum pumps, it saves 5% -12% energy,
The greater the fluctuation in system gas consumption, the more obvious the energy-saving effect.
The vacuum pump is equipped with the latest technology spiral rotor, and the spiral rotor/body is processed by grinding machine processing equipment, ensuring the precision of the machine head. Using heavy-duty bearings to ensure stable clearance of the host rotor, optimizing bearing design to improve host lifespan and equipment stability. Not only can it correspond to a wide range of controlled high speeds, but also by eliminating mechanical losses, the maximum increase in air extraction is 30% -35%. The internal anti-corrosion treatment of the machine head greatly improves durability and reliability.
The full power range is equipped with a built-in DC reactor, multiple analog inputs are equipped with precise and efficient control processes, and the frequency converter comes with a function to detect the loss of excitation of synchronous motors. The unique protection function meets the needs of unstable power grid voltage.
Contact: Alexander Sun
Phone: +86 19916725893
Tel: 0512-55128901
Email: [email protected]
Add: No.6 Huxiang Road, Kunshan development Zone, JiangsuShanghai Branch: No. 398 Guiyang Rd, Yangpu District, Shanghai, China