In the context of global energy upgrading and transformation, the heat pump market has maintained rapid development in recent years. 2022's European energy crisis has led to soaring oil and gas prices, superimposed on the policy stimulus to promote the short-term outbreak of demand for heat pumps in Europe. Small on the concept of heat pump classification, technical advantages of multiple perspectives in depth analysis of heat pump industry development.
1
Concept and classification
Heat pump is a kind of electric energy driven by the efficient use of low-grade heat heating device, heat pump unit can be absorbed from the natural world of heat, after the heat pump "handling" (electric power to drive the heat pump), can be used for the production of heat energy, life. Heat pump thermal efficiency usually up to 300% - 400% or more, that is, 1 degree of electricity to carry at least 3-4 degrees of electricity, its thermal efficiency than the direct heating of electric water heaters, gas boilers and other heating several times higher, and almost no pollution.
Currently on the market commonly used heat pumps can be divided into three main categories: air-source heat pumps, ground-source heat pumps, water-source heat pumps.
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Air Source Heat Pumps: Air source heat pumps work on the principle of the "reverse Carnot" cycle. Through the operation of the compressor system, it absorbs heat from the air to make hot water.
Ground source heat pump: Because the shallow surface temperature is little affected by the atmosphere, its temperature is maintained at 16-18 degrees all year round (subject to the field), with the ground source as the source of cooling and heating of the ground source heat pump system, not only breaks through the traditional air-conditioning system of technical barriers, but also improves the efficiency of the air-conditioning operation.
Water-source heat pump: Water-source heat pump is a technology that utilizes shallow water sources on the earth's surface, adopts the heat pump principle, and realizes the transfer of low-level heat energy to high-level heat energy through a small amount of high-level electric energy input.
2
Advantages compared with traditional heating and air conditioning
The technology of heat pump is derived from the compressor-refrigerant system of heating and cooling air conditioners, while the COP (thermal efficiency conversion) of air-source heat pumps is generally more than 300%, i.e., the electricity consumption of air-source heat pumps in daily household heating and cooling is only about one-third of that of air conditioners.
Air-source
heat pumps need to withstand higher condensing pressure and compression
ratio, resulting in higher thermal conversion efficiency; at the same
time, in order to achieve a wider range of ambient temperature
requirements, air-source heat pumps, the performance of various parts
and components of the higher performance index requirements. Air source
heat pump in the system defrost, use of the environment, parts,
operating mode and other aspects of the air conditioning there are
greater differences, so its performance requirements for parts higher,
the manufacturing cost is correspondingly higher. In addition to cooling
and heating, air-source heat pumps can also have functions such as hot
water and drying.
To
summarize, the advantages of heat pumps compared with air conditioning
systems can be mainly reflected in: higher heating/cooling efficiency,
more comfortable and environmentally friendly user experience.
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