Comfort bath standard first | Water heater technology evolution to help experience upgrade

With the vigorous development of quality consumer demand, people have put forward higher requirements for the bathing experience. The product technology and service upgrade around the new bathing needs, and continuously improve the whole process consumption experience, has become an important force for the water heater industry and enterprise strategic transformation. point.

It is worth noting that at the 2018 China Household Appliance Technology Conference Family Water Heater Professional Technology Branch held on October 31, the two standard notifications and debuts provided solid support for improving the consumer experience.

Wang Shengxian, module chief of Haier Water Heater Co., Ltd., Qingdao Economic and Technological Development Zone, presided over the meeting

Haier conducted a survey of consumer demand for high-end electric water heaters, showing that it is safe and reliable, heating is fast, and the amount of hot water is sufficient to occupy the top three of consumer demand, while slow water burning, low power, and small water output occupy negative product experience. Evaluation of the top three.

Zhao Xiaoyong, director of research and development of Haier electric water heaters, said that the heating performance of water storage electric water heaters is a key indicator of current water heater products. However, the current standards do not have clear requirements on how to effectively, reasonably and uniformly evaluate heating performance. The propaganda is relatively confusing, and the industry urgently needs to take measures to regulate market behavior and provide clear guidelines for consumers to purchase.

Haier electric water heater advanced research and development director Zhao Xiaoyong

It is understood that in order to unify the market calibre, promote the improvement of indicators, and better meet the needs of users, the China Household Electrical Appliances Association has issued a notice on August 28 this year to officially launch the formulation of the heating performance evaluation specifications for storage-type electric water heaters. At the end of 2018, the first phase of standardization will be completed. In 2019, the use will be promoted and the standard project will be promoted according to the situation.

A survey on the consumption demand of electric water heaters conducted by Midea shows that energy saving, convenience and safety are the core needs of users, and energy saving is the top priority of core demand.

According to Shen Yongbing, a technical expert of Guangdong Midea Kitchen and Bathroom Electric Manufacturing Co., Ltd., traditional energy-saving technologies mainly focus on the improvement of thermal insulation performance, and there are bottlenecks such as volume increase and cost increase. According to on-demand heating, concentrated energy heating ideas, US innovative R&D A new intelligent energy-saving technology solution can be used to learn and predict the user's habits. The machine can customize the heating strategy according to the requirements to achieve automatic energy-saving operation. Compared with the normal mode, the intelligent energy-saving mode saves 41% of the daily energy.

Shen Yongbing, Technical Expert of Guangdong Midea Kitchen and Bathroom Electric Manufacturing Co., Ltd.

At present, Midea has cooperated with other water heater enterprises and research institutes to formulate the group standard for “Intelligent Energy Saving Technical Specifications for Household Water Storage Electric Water Heaters”. The standard has been released on July 27 this year. This standard will quantify the research results and standards of enterprises. The multi-dimensional organic combination of consumer habits is conducive to standardizing and guiding the assessment and measurement of the intelligent energy-saving level of electric water heaters.

In addition, in the use of gas water heaters, high-rise buildings are windy, and it is the most significant problem in the user's pain point investigation.

According to Yang Yumin, research and development engineer of Haier gas water heater electric control, the pressure sensor is installed on the gas water heater, and the difference between the force generated by the wind pressure of the fan and the force generated by the external wind pressure is different from that of the fan. Corresponding relationship under different wind pressures, the fan self-learning and the adaptive wind up and downwind curves of the fan were found, which can resist the change of external wind pressure in real time, ensure the best air-fuel combustion in the combustion system and the exhaust gas. Timely discharge, providing efficient and reliable solutions for gas water heaters that can be applied to different regions and installation environments.

In addition to the relevant standards and technical development of electric water heaters and gas water heaters, the application and development of air source heat pumps in hot water and heating are also the focus of the industry.

According to Zhao Hengyi, executive deputy secretary-general of China Heat Pump Industry Alliance, the development of air source heat pump heating industry is expected. According to him, heat pump is an energy-saving and environmentally friendly product that uses renewable energy. It has three characteristics of energy saving, environmental protection and renewable. Air source The application of heat pumps is not only heat pump water heaters, but also covers hot water, heating, industrial and agricultural fields, and has great potential in energy-saving applications and market development. The International Energy Agency (IEA) predicts that heat pump technology will gradually become a heating device. Mainstream.

Conference site

At the Water Heater Technology Branch, Liu Jiayou, Director of Product Evaluation Department of Guangdong Wanhe New Electric Co., Ltd. elaborated on the thermal impact of the heat pump water heater energy efficiency test system, and analyzed the current heat pump water heater standard for the energy efficiency test system. And the problems with the heat storage project, and pointed out the improvement method.

In terms of component technology, Du Yuxuan, the development department of Shanghai Linnei Co., Ltd. shared the comparison between copper and stainless steel in heat exchanger applications. He believes that copper and stainless steel have advantages and disadvantages in terms of properties and properties. Stainless steel heat exchangers are durable. And the overall cost is better than the copper heat exchanger, but the stainless steel heat exchanger is not as comfortable as the copper heat exchanger.

In addition, Bian Kaisheng, Technical Manager of the Polyurethanes Division of Dow Chemical (China) Co., Ltd., shared the application of innovative foaming agent alternatives in water heaters, and Steve Yass (Tianjin) Electric Co., Ltd. Product Management China Business Development Director Steven Sharing the thinking about water heaters from China's water quality.