Weile variable frequency booster pump

Brand Introduction:

Weile Water Pump was founded in 1872. After 140 years of accumulation, Weile's products and services have been deeply rooted in multiple application fields such as HVAC, refrigeration, sewage treatment, and water supply equipment. We are one of the world's leading manufacturers of water pumps and pump systems, mainly used in HVAC, refrigeration, sewage treatment, water supply equipment, etc. WILO SE, headquartered in Dortmund, Germany, is one of the earliest groups to develop and innovate water pump systems. Currently, we have 70 subsidiaries and 6200 employees worldwide. Weile Pump currently has five production plants (located in countries such as Germany and France) and twenty-seven pump sales subsidiaries (located in thirty-two countries including Western Europe). Since its development, the company has formed an annual production scale of over 5 million sets of water pumps, mainly based on automated production, ranking first in the global HVAC pump industry. For over a hundred years, the company has been dedicated to the research and production of water pumps and their speed control equipment for building construction.

MHICharacteristics of horizontal multi-stage pump

Stainless steel horizontal multi-stage centrifugal pump, water pump and motor share one shaft, compact structure.

All components in contact with the medium, such as impellers, flow chambers, and bowl shaped pump casings, are made of stainless steel.

The maximum pressure of the water pump is 10 bar, with a 90 degree angle between the inlet and outlet.

Maintenance free dual steering mechanical seal.

The pump casing is equipped with a water injection port and a drainage port.

MVICharacteristics of vertical multi-stage pump

The impeller, guide chamber, and casing are all made of stainless steel.

The water pump and motor shaft are connected by a sleeve type coupling, and independent rolling bearings are separately configured in the lantern frame of the pump to balance all axial forces, thus enabling the configuration of various standard motors such as V18 or V1.

Adopting maintenance free mechanical seals that are not restricted by steering.

The working principle of Weile variable frequency booster pump:

The basic working principle of the Weile variable frequency booster pump is to automatically adjust the number of running water pumps and the speed of one water pump according to changes in user water consumption, so as to maintain a constant outlet pressure of the water pump. When the user's water consumption is less than the output of one water pump, the system operates with a variable frequency speed control system based on the change in water consumption. When the water consumption increases, the pressure in the pipeline system decreases. At this time, the pressure sensor sends the detected signal to the system control center, and through system operation judgment, sends instructions to the variable frequency drive to control the water pump motor, increase the speed to ensure constant system pressure. Conversely, when the water consumption decreases, the speed of the water pump slows down to maintain constant pressure. When the water consumption exceeds the output of one pump, the first pump switches to power frequency operation, and the second pump starts variable frequency speed regulation operation. When the water consumption is less than the output of two pumps, one or both pumps can automatically stop running. Throughout the entire operation process, the system maintains a constant pressure, ensuring that the water pump always operates in the high school area. This not only guarantees constant pressure water supply for users, but also saves electricity. The equipment does not require dedicated operators.

Scope of application of Weile variable frequency booster pump:

1. High rise buildings with water pools, hotels, schools, urban residential areas, enterprises and institutions, and rural living water for new rural construction.

2. Domestic or production water for factories, industrial and mining enterprises.

3. Various types of water plants, water supply stations, sewage and wastewater treatment plants, agricultural irrigation and drainage stations, etc.

4. Centralized hot water supply for high-rise buildings, residential areas, and enterprises and institutions.

5. Pressurization of cooling water and circulating water in production and daily life.

6. Constant pressure oil transportation in oil field pipelines, oil depots, gas stations, etc.

7. Pressurization of water for cleaning equipment.

8. Boosting of irrigation water for agriculture and landscaping.

Product features of Weile variable frequency booster pump:

1. Significant economic benefits: By using this equipment, there is no need to build a water tower or install a rooftop water tankIt not only reduces the construction period of the project, but also solves the disadvantage of high project cost, and overcomes the shortcomings of large air pressure fluctuations and frequent pump start-up.

2. Rigorous design: The equipment adopts variable frequency and constant pressure control of the water pump, which can maintain a constant outlet pressure of the pipeline regardless of changes in the system's water consumption.

3. Reliable operation: The equipment adopts a frequency converter and a Weile MHI/MVI series water pump, which has complete protection functions and automatic/manual conversion functions, making the operation very reliable. And it has good performance, flexible control methods, and strong anti-interference ability.

4. Energy saving: This device can adjust the speed of the water pump according to the changes in the user's water consumption, so that the water pump always works in the high-efficiency zone, and the energy-saving effect is obvious. It can save 35% of electricity compared to a constant speed water pump.

5. Easy to operate: The device adopts fully automatic control, PID regulation, keyboard operation, and human-machine interface (text, number) display. Operators only need to switch the electrical control cabinet switch to achieve the desired operating conditions for users, achieving fully automatic unmanned operation.

6. Complete protection functions: It has automatic protection functions such as overload, short circuit, overvoltage, undervoltage, phase loss, overcurrent, short circuit, and water shortage. Can perform signal alarm, self check, fault diagnosis, etc. in abnormal situations.

7. Small footprint and easy installation: The entire equipment only has one set of water supply control cabinet and water pump unit, making installation very simple and convenient.

8. Extending the service life of water pumps and motors: It can reliably achieve soft start for multiple pump units, avoiding impact on the power grid and pipeline network, and rotating alternately, greatly extending the service life of water pumps and motors.