In the first half of 2017, the overall market of refrigerators got rid of the decline of "the volume of qi" in 2016. Although the macro economy is still under downward pressure and the pressure of rising raw material costs, the market has stabilized. In fact, as the three major markets for white electricity One of the main force, the current refrigerator industry appears to be behind the smooth but in fact a lot of industrial technology innovation breakthrough breakthrough focus.
On November 3, the China Refrigeration / Freezer Professional Technology Conference of China Household Electrical Appliances Technology Conference 2017 was held in Hefei, Anhui Province, hosted by China Household Electrical Appliances Association. Haier, Midea, Hisense, Bossi, Meiling, Embraco, GMCC & Welling, , Gasibella, Wanlang Maglev, Malata, the same day in Qingdao, Fujian Dorset, Xi'an Jiaotong University and other upstream and downstream industries, scientific research institutions gathered in the technical experts on the refrigerator industry, the whole industry chain technology hot spots and development trends to discuss, In order to enhance the total plastic refrigerator / freezer machine performance solutions to promote a full upgrade of the industry full of vitality.
China Appliance Technology Conference refrigerator / freezer Branch site
Currently, the global refrigerator industry to energy-saving, environmental protection, large-volume trend of development.Hai Haier refrigerator Refrigeration Development R & D Department, said Liu Jian, senior research and development, the future performance standards of the refrigerator industry, global harmonization of energy efficiency standards in the refrigerator, the refrigerator energy-saving technology From the standard refrigerator test research energy saving, the actual user to use energy-saving design.
As an important part of the refrigerator, the performance of the heat exchanger is directly related to the economy of operation of the refrigerator.It is an important means to improve the performance of the refrigerator and reduce the production cost by developing a highly efficient and economical refrigerator heat exchanger.Xi'an Jiaotong University Refrigeration and Cryogenic Engineering Professor Fish Jianlin believes that with the requirements of refrigerators and freezers to further improve energy efficiency, lightweight, compact and low-cost high-efficiency heat exchangers are currently an important technology development direction in the industry.Compared with the field of air-conditioning heat pumps, the refrigerator industry Heat exchanger related research is relatively small, should cause industry concern. "At the same time, Yu Jian-lin said that the industry should strengthen the experimental study of heat exchangers.
Xi'an Jiaotong University, Department of Refrigeration and Cryogenic Engineering fish sword Lin
Andre Rosa, Director of Research and Development Asia at Embrax Snowflake Compressor (Beijing) Co., Ltd., delivered a speech entitled "Application of R290 Inverter on Household Refrigerators." In his opinion, the R290 compressor is very advantageous : With greater cooling capacity, the R290 inverter compressor meets the technical requirements of greater cooling capacity and energy efficiency, a greener and more competitive solution, and proven technologies for the R290 product for commercial refrigeration. 'Our company and the broad Colleagues are intensifying their efforts to raise the efficiency rating of compressors, of course, there will be some new technologies emerging at the same time.
Andre Rosa, Head of Research and Development Asia at Embraco Snowflake Compressor (Beijing) Co., Ltd.
Now whether the home compressor market or light commercial compressors, the natural refrigerant switch is an important direction.GMCC & Welling advanced research experts Regis Scapini Marques said at the meeting: 'In 2013, the entire compressor area has not yet R290 compressor refrigeration But there are already five companies studying R290 compressors by 2017. The industry is getting ready for the switchover of natural refrigerants and GMCC & Wellin's next plan is to use all of our product lines with R290 refrigerant.
Regis Scapini Marques, Lead Research Specialist, GMCC & Welling
In addition, Regis Scapini Marques made five summaries of the switching of global natural refrigerants: First, the replacement of hydrofluorocarbons (HFCs) is an inevitable trend, but it is not certain when it will happen. Second, China and Europe will be Household and light commercial reciprocating compressor refrigerant switching leader; Third, the United States is still a clear refrigerant replacement speed; Fourth, the overall impact of refrigerant replacement is positive and correct; Fifth, China's reciprocating compressor refrigeration business has a large China's compressor position in the world will change greatly because China has a complete product spectrum corresponding to replace the traditional refrigerant, while many refrigerant suppliers to choose from.
'Refrigerant switching is a big test for the entire refrigeration industry as it relates to the entire chain of interest.Currently the biggest concern with the use of hydrocarbon refrigerants is safety, but the flammability of flammability, carbon Hydrogen refrigerants are still the best natural refrigerant for the future, "said Regis Scapini Marques.
About R290 refrigerant, Qingdao Haier special freezer spokesman said that R290 refrigerant is a more efficient refrigerant, in line with environmental requirements, to meet the needs of the freezer cooling capacity, with the release of follow-up policy, will be widely used. It is reported that, on the R290 refrigerant charge, the current limit is 150g, and the current international community is actively promoting the use of R290 is expected by the end of 2017 or 2018, R290 perfusion limit is expected to be increased to 500g, R290 refrigerant use As far as its safety is concerned, he said that the R290 refrigerant explosion concentration of 2.6% -8.9%, the lowest initiation temperature of 810 ° C, the two conditions at the same time to achieve a smaller chance.
In addition, on R290, Wang Baocheng, an application engineer at Applied Technology Department of NITCO Compressor (Tianjin) Co., Ltd., introduced the application of R290 inverter compressor in island cabinets, said Wang Baocheng. Tests on island cabinets found that R290 inverter compressor NLV12.6CN Than the R404A constant speed compressor SC18CLX.2 increase in cooling rate of 39%, 51% energy saving, to meet the energy efficiency requirements of an annual savings of nearly 1,800 yuan.Pei Cheng believes that in countries on the refrigerant and energy efficiency Under the guidance of laws and regulations, the requirements of domestic and foreign markets are becoming more and more stringent. The energy efficiency of light commercial self-contained refrigerators will be further enhanced. Therefore, the application of inverter compressors will become the future trend of development.
Nicolet Compressor (Tianjin) Co., Ltd. Applied Technology Application Engineer Wang Baocheng
Shu Shaoren, deputy chief engineer of Gasbera Compressor Co., Ltd., has sorted out some of the current inverter compressors. 'The goal of China's home appliance industry in the roadmap for refrigerator compressors is as follows: By 2020, the use of inverter compressors will account for 30% By 2025, the use of variable frequency compressors accounted for 50%. 'Shu Shaoren believes that this goal on the technical requirements of inverter compressors made the same time, he said, high efficiency, small size, smart and low noise is the future of inverter compressor development trend.
The technical conference, intelligent discussion accounted for a larger space.In the refrigerator industry, the industry is also exploring the road of intelligence.Hefei Meiling Co., Ltd. Planning Director Yan Yong said that the home appliance to achieve a breakthrough in intelligence, the need for real Effectively understand the principle and structure of home appliance products and innovate, build a systematic and intelligent solution based on scenarios such as home, open up the experience link of 'technology-scene-service', and understand and satisfy the demands of users' values. There are still some problems, but there are boundless possibilities for the home appliances to connect to the Internet. The entire home appliance industry should work together to promote the intelligent development of the home appliance industry.
Although the door seal is only a small refrigerator product components, but its role can not be ignored.Reporter was informed that "the road map of China's domestic refrigerator industry (2015 version)" made it clear that energy-saving research and development needs, including the new standard under the system optimization Matching and door seal and heat bridge optimization. Anhui Wanlong Magnesium Plastic Co., Ltd. Wang Changyong said at the meeting, the door seal technology in the future there are five major trends: the overall easy-to-clean door seal, more flexible use of airbags, PVC + 'elastomer 'Co-extruded should Yun, two-color and multicolor co-extruded personalized applications, TPE environmentally friendly materials applications.
Anhui Wanlong Magnetic Plastic Co., Ltd. Wang Changyong
In this refrigerator / freezer branch, Hisense (Shandong) Refrigerator Co., Ltd. Hisense refrigerator pre-research engineer Hu Feng shared his experience in the field of foam more than 20 years.He said that cyclopentane-based composite foam technology , In the future for a long time, will become the mainstream of China's refrigerator foam technology, but also the direction of the upgrading of foam technology.At the same time, he believes that cyclopentane plus moderate amount of low GWP, zero ODP, safe (non-toxic or Low toxicity) of a new generation of foaming agents (HFOs), the formation of cyclopentane + HFOs binary or multiple compound foam technology is in line with China's national conditions and can achieve the goal of the refrigerator industry energy-saving foam technology line.
In addition, Fujian Dorset New Materials Co., Ltd. R & D Director XIE Zhen-Gang shared nanofilm vacuum insulation panels on the ultra-thin energy-efficient refrigerators influence. Boss Huadian (Jiangsu) Co., Ltd. Electrical System Engineer Dong Shujian refrigerator based on agile Development and research.He said that the introduction of agile development in the refrigerator software development is an effective way to solve the current situation of the industry.The agile development can improve product quality, make the development process of transparency, but the development team has a higher The same day Qingdao Machinery Technology Co., Ltd. high-En Yang said that the industry can be applied in the future artificial intelligence, in-depth study of ways to overcome the attachment of the first set of complex pipeline context.
For users, the refrigerator has a better fresh performance is its greatest demand.Hefei Midea Refrigerator Co., Ltd. R & D Performance Department reliability design expert Fang Zhongcheng that the R290 may be able to bring a breakthrough for the refrigerator industry fresh.According to him , R290 refrigerator, the cooling temperature can be reduced from -27 ° C to -38 ° C, increased by 40%; cooling rate can be reduced from 185min to 111min, up 40%; provided better conditions for fresh food storage.At the same time, he said, through Systematic noise optimization, R290 refrigerator noise can be close to the same specifications R600a refrigerator noise level, for the future home to provide good conditions.
At the meeting, Chen Kai-sheng, a refrigeration engineer at Hefei Meiling Co., Ltd., analyzed the evolution of a commercial large-capacity freezer refrigeration system and the current status of the large-capacity freezer R290. He said that the R290 refrigerants are the development of the freezer industry . The power consumption, energy efficiency rating, climatic type, freezing capacity and noise of the R290 refrigerant have been greatly improved over the existing market products.
Hefei Meiling Co., Ltd. Institute of Refrigeration Engineer Kai-Song Chen
In the current phase, the refrigerator industry opens its growth engine primarily through technological optimization, and Helmut Greiner, Global Applications Manager for NITCO Compressor (Tianjin) Co., Ltd., believes that energy efficiency, cost pressures and reliability are the main drivers for the technical optimization of the refrigerator product. System integration will be the future trend.