A more ecological, energy-saving and optimized world is our common goal! In response to the severe global climate change, the international community on the basis of “Montreal Protocol”,    has passed the “Kigali Amendment” in October 2016, 16 kinds of Hydrofluorocarbon (HFCs) compounds have been added into control list, this is another milestone after “The Paris Agreement” reached in December 2015, opened a new chapter in the history of coordinated response to ozone layer depletion and climate change. As the largest developing country and contracting party, China facing great difficulties, but still put forward the "carbon peak" goal and "carbon neutral" vision in September 2020, and on April 16, 2021, announced to accept the “Kigali Amendment”, which shows the determination of China actively respond to climate change and pursue low carbon development road, this will bring profound impact to China and the world in environmental, energy and economic sectors.

 As a major energy consumer and manufacturing country, China currently emits more than 10 billion tons of carbon dioxide, and carbon-based energy sources such as coal, oil and natural gas account for the vast majority of the energy mix. From the perspective of energy consumption, industry, transportation and housing are the most important energy consumption sectors in China, among them the industrial energy consumption reaches 42.9EJ, accounting for about 49% of the country's total energy consumption. About 50-70% of the industrial energy consumption is consumed in the form of heat energy, and about 45% is medium to low temperature heat, the temperature is less than 250℃, and most are between 80℃ and 170℃. Based on the current energy structure and the distribution of energy consumption mix, in order to achieve "carbon neutrality", we must complete the green energy transformation work, and increase the proportion of zero-carbon energy and low-carbon energy, mainly in the form of electricity.

 Heat pump technology is the best way to convert electricity into heat. In the past 10 years, thanks to the national promoting policies in various aspects, plus the advantages of energy conservation and environmental protection of heat pump technology, the heat pump industry has achieved great progress in the application field of hot water, heating and drying, and the heat pump technology in the application of below 80℃ is becoming increasingly mature and has been widely accepted by the market. The end market revenue exceeds 50 billion RMB in 2021. Affected by the continuous price increase of natural gas in Europe, heat pump exports have nearly been doubled, with an eye-catching performance. Heat pump is expected to continue to maintain high growth rate in export sector and drying applications in 2022.

 In the context of carbon peak and carbon neutrality, high temperature heat pump is one of the important directions of future heat pump technology research, and technological breakthroughs will lead to a significant improvement in performance and reliability. The application prospect of industrial high temperature heat pump is very broad.

 As the core component of the heat pump system, the compressor has great performance and reliability challenges when operating in high temperature conditions. The normal operation of the shaft system and lubrication system is crucial to the reliability of the compressor. We not only need to choose the appropriate lubricating oil according to the type of refrigerant and different compressor component materials, but also optimize the oil circuit system to ensure the stressed parts’ working surface is fully lubricated. Considering the waste heat recovery or high return gas temperature being common in industrial high temperature heat pump applications, the motor and return gas cooling circuit must be enhanced and optimized, to ensure that the motor can run reliably for a long time at high temperature. At the same time, plus vapor injection, liquid injection and intermediate discharge technology, can not only control well the discharge temperature, but also help the system to improve the operation efficiency and reliability.

 Scroll compressor with high volume efficiency, excellent heating performance, stable operation and many other advantages in the heat pump application. Along with scroll compressor engineering and development in the high temperature heat pump application, more core application technologies, such as multi-stage gas discharge technology, multi-stage compression technology and dynamic back pressure sealing technology, will be further optimized to breakthrough level, the scroll compressor high temperature heat pump application performance and reliability will be greatly improved.

In general, to realize the goal of carbon neutrality must change the current heat generating system in industrial sector, this will result upgrading the industrial chain, and will certainly reform heat pump technology and compressor technology. Scroll compressor will become the most important solution in the application of industrial high temperature heat pump, and also in the process of industrial energy conservation and emission reduction.