The world we are used to is changing by leaps and bounds. Innovation comes to every area of human life. Sample of the technological revolution – pumps Grundfos for heating systems and water supply of a country house. Therefore, in the article, we propose to consider the main trends in the development of engineering equipment on the example of modern pumps of this company.
- Directions for the development of pumping equipment
- Advantages of Grundfos ALFA and SQE pumps
- Why ALPHA Series Pumps Reduce Electricity Charges
- Controlling a pump over the Internet is a luxury or justifiable need
Development Trends of Modern Pumping Equipment
There are four areas that, in recent years, have changed the consumer properties of pumps for heating systems and water supply:
- The transition from pumps with a fixed rotor speed to pumps with frequency regulation, ie – a smooth change in performance. This trend is clearly visible in the three most common types of pumping equipment.
- Development of a series of circulation pumps: from UP / UPS to ALFA.
The UP / UPS series circulation pumps are familiar to installers and consumers. They have proven reliable equipment with long service life. They are used for pumping coolant in heating systems, water circulation in domestic hot water systems, as well as in air conditioning and cooling systems. The pump device is shown in the photo below.
But, modern operating conditions of heating dictate their requirements for circulation pumps. Now, the most widely used equipment that flexibly adapts to system performance. How does it work? Pumps without frequency-controlled electric motors are switched on by a signal of automation. Therefore, they work either continuously, or until they receive a shutdown signal. That is, the rotor speed does not change, and does not depend on the operating parameters of the system where this pump is installed.
As a result, the pump performance is constant, although the parameters of the system and its need for a coolant continuously vary depending on external conditions. For example, in the winter there was a thaw, but the heating system with a conventional circulation pump will work with maximum efficiency, as at sub-zero temperatures. A smart pump will independently monitor the operating parameters of the system and, depending on external factors, will change its performance so that it optimally matches the current needs of the residents of a country house.
An example of such a circulation pump is the Grundfos ALPHA3, which is equipped with an AUTOADAPT system. We will tell you more about it at the end of the article.
As for water supply, a good example of the evolution of equipment is:
- Development of pumping stations: from an efficient and reliable MQ series to a modern SCALA self-priming unit.
The station, thanks to the built-in ejector, will lift water from a well, well or reservoir from a depth of up to 8 meters. The key advantages of the pumping station are a motor with an integrated frequency converter and an external panel with an intelligent unit that controls the operation of the pump.
Innovations have also affected downhole pumps.
- There has been a shift from SQ series equipment, which was most often used with a pressure switch, to SQE series pumps combined with water pressure sensors.
The electric motor of the SQE smart borehole pump is equipped with a shaft speed controller. Therefore, constant pressure is maintained in the cottage, even if all the taps in the house are opened at the same time.
Intermediate conclusion: modern pumping equipment should be independently adjusted to the needs of the consumer. Thus, a person receives the maximum level of comfort and saves energy, because the pump operates in optimal mode, and not constantly at maximum power. In addition: such an algorithm of the operation increases the resource of equipment, and also brings us to the second, noticeable development trend of modern pumps.
Transition to energy-efficient equipment
This item is directly related to the previous one. Everyone has heard about the concept of “energy efficiency” today. It has become so familiar that non-energy-efficient equipment is automatically considered obsolete. This is logical. Energy prices are constantly rising. This forces developers to produce pumps for heating and water systems that work as efficiently as possible while lowering the cost of electricity consumption.
Variable speed pumps consume less electricity than conventional pumps. For example, according to the European standards of the VDE Association, the energy efficiency index of pumps (EEI) pumping water and heat transfer fluid should not exceed 0.23. Alpha2 series circulation pump energy efficiency index