The hottest technological innovation ability conti

2022-08-13
  • Detail

Technological innovation ability continues to improve, and the future of air energy heat pump is expected.

after nearly a decade of development, China's air source heat pump hot water industry has been improved in all aspects through continuous innovation and reference to the mature Jinan gold testing service outstanding manufacturing industry, gradually established a completed industrial chain system, and formed a relatively perfect national technical standard system

after nearly a decade of development, China's air source heat pump hot water industry has been improved in all aspects on the basis of relevant industries, through continuous innovation and reference to mature manufacturing industries, gradually established a complete industrial chain system, and formed a relatively perfect national technical standard system. Air source heat pump in China is facing the challenge of how to expand the industrial scale and how to promote products

technological innovation ability continues to improve, and the future of air energy heat pump is expected.

"air heat energy is a form of renewable energy, and air heat energy can be efficiently utilized by air source heat pump technology." Recently, yaochunni, an associate researcher at the science and technology development promotion center of the Ministry of housing and urban rural development, said

relevant experts believe that as a relatively "niche" technology at present, how to promote and popularize it has become the most urgent task at present

enterprise scale continues to grow

after nearly a decade of development, China's air source heat pump hot water industry has further improved in technology, scale, equipment, industrial chain and management, and gradually established a completed industrial chain system on the basis of related industries such as air conditioning and water heater products, through continuous innovation and reference to mature manufacturing industries, It has laid a solid foundation for the larger scale promotion and application of products

"the development of air source heat pump industry helps to achieve energy conservation and emission reduction, improve the utilization rate of renewable energy, and has broad potential in building applications and industrial and agricultural production." Zhao Hengyi, Deputy Secretary General of the heat pump professional committee of the China Energy Conservation Association, believes that the use of air source heat pump hot water equipment to produce domestic hot water or heating hot water effectively realizes the substitution of conventional energy, and has an obvious effect of energy conservation and emission reduction

in addition to air source heat pump water heater products, air source heat pump technology is also widely used in China's air conditioning products. At present, most air conditioning products also have the function of heat pump heating. According to statistics, in 2014, the sales volume of room air conditioners in China reached 118.38 million units, with an output value of more than 200 billion yuan, of which 71.59 million units were sold domestically, and nearly 90% were heat pump products, that is, air conditioning products with heating and cooling functions

according to the introduction, from the perspective of enterprise sources, many enter the air source heat pump hot water equipment industry from the traditional refrigeration and air conditioning, water heater industry. Refrigeration and air-conditioning enterprises such as Midea and Gree, solar energy enterprises such as SUNRAIN, Siji Muge and linoritte, electric water heater enterprises such as AO Smith and Haier, and gas water heater enterprises such as vatti, Wanjiale and Wanhe have set up special factories or departments to engage in the business of air energy water heaters

in terms of geographical distribution, due to the good household appliance industry foundation in Guangdong Province, the number of heat pump enterprises in Guangdong Province and East and South China is the largest, followed by Zhejiang Province in East China. Among them, Longchuan County, Guangdong Province has built a heat pump industrial base

accelerate the promotion of CO2 heat pumps

after the efforts of all parties in recent years, 31. ASTM has formed a relatively perfect national technical standard system, providing technical support for the development of large-scale industries. According to Zhao Hengyi, at present, the supporting parts and technical capabilities of heat pump enterprises are constantly improving. In the early stage of industry development, most parts and components are borrowed from existing traditional industries such as air conditioning and water heater. With the expansion of industry scale, special parts and components systems have been established in succession. From water tanks, compressors, heat exchangers to controllers and pumps, there are professional suppliers and special products

with the development of the industry and the enhancement of enterprises' own strength, all air source heat pump hot water equipment enterprises are actively strengthening laboratory construction, paying attention to scientific research talents and future technology research and development. The support of relevant ministries and commissions, provincial and municipal governments at all levels for air source heat pumps and related projects is also increasing. Enterprises in Guangdong, Zhejiang and Beijing have obtained the superposition of various destruction processes; Government support for science and technology projects

Zhao Hengyi introduced that in order to solve the problem that the service life of air-conditioning compressors in heat pump water heaters is only 2-3 years, enterprises in the industry have made improvements and breakthroughs in the development of heat pump technology. For example, Shanghai Haili compressor has reformulated the service life assessment condition of heat pump compressor to ensure the 10-year design service life of the compressor for heat pump water heater. The special compressor for Shanghai Hitachi heat pump water heater also adopts environmentally friendly refrigerants R134a and R417A, with complete product specifications, covering household and commercial fields

at the same time, Zhao Hengyi also called for the high low-temperature saturation pressure of carbon dioxide refrigerant, which has lower evaporation temperature, better heat absorption capacity and less system heating attenuation than ordinary refrigerants. Low pressure ratio and supercritical gas cooling process can ensure the ability to produce high-temperature hot water at low ambient temperature. Even at -20 ℃, CO2 heat pump water heater can still produce hot water at 80 ℃ -90 ℃

however, at present, the available parts suppliers and specifications of carbon dioxide heat pump water heaters in the Chinese market are few, and there are many materials used in high-pressure systems, resulting in rising costs, high overall costs, and high after-sales service costs. China's support for carbon dioxide heat pumps at the policy level is still relatively small. These have resulted in less application of carbon dioxide system. In 2014, the CO2 heat pump of Kunming Dongqi science and Technology Co., Ltd. passed the national new technology product appraisal. The research and development of CO2 heat pump drying unit was approved by the national innovation fund, obtained a number of innovative technology patents, and achieved large-scale production. If the support and guidance at the policy level are stronger, more enterprises will be attracted to participate in the development and production of CO2 heat pump system, reduce product costs and supporting costs, and speed up the promotion of CO2 heat pump in terms of our business process

promote air source heat pump

with the development of China's economy and the improvement of residents' living standards, hot water bathing has become the daily needs of ordinary people. The advantages of all-weather, stable water temperature and large water volume of air source heat pump water heater are conducive to meeting the higher requirements of consumers

"in addition to the demand of the southern heating market, Beijing Tianjin Hebei and its surrounding areas will vigorously implement the action of reducing" coal combustion "within five years. Air source heat pump heating must seize the opportunity and actively respond." Zhao Hengyi believes

in the original decentralized coal-fired heating field in Beijing Tianjin Hebei and its surrounding areas, a special rigid demand market for decentralized heating with gas or electricity has formed. According to conservative estimates, the scale will exceed 5million households. Most of the urban residences in Beijing, Tianjin and Hebei still use small coal stoves for heating are old bungalows. Within five years, it is unlikely that the gas supply situation in these places will change significantly, especially in rural areas. Therefore, most of the decentralized coal-fired heating transformation will turn to decentralized electric heating. Zhao Hengyi said that the relatively dry climate conditions in Beijing Tianjin Hebei and surrounding areas, as well as the rapid improvement of low-temperature heat pump technology, have created good conditions for the application of air source heat pump in this region

Copyright © 2011 JIN SHI