According to foreign media reported that the Navy Song-class submarine had been modified to install power AIP

Yuan -class submarine force has been installed AIP

" heart " power a new dream of success

China Shipbuilding Industry Group, 711 new research results of special engine applications

Intern Liang Libing

Fuzhou Hongmiaoling landfill from this year , will be issued each year an " accident " fortune . Of course , not really a dream come true , but because more than last year , the landfill closure site cover and landfill gas power generation project was finally completed and commissioned , after the East China power grid each year to 12 million kwh of Power .

The core of this project --- the construction of those special engine technology , it is the engine of a 30-year history of special --- China Shipbuilding Industry Group, 711 unit of the Institute of Power Technology Co., Ltd. Shanghai Qi Yao .

Special engine , a gas by external heating at different temperatures to make periodic cyclic compression and expansion of the closed engine , developed by the Institute on July 11 of this engine is a new scientific research of international standard Results have stimulated the growth of 20 kilowatts , and 100 -kilowatt generator of different models , both using natural gas , diesel , solar energy, can use for other solid fuels for power generation , while the emission of pollutant gases compared to other engines currently on the market Less , has reached the European emission standards , both in the field of large-scale civilian and military applications .

At present, this engine has been successfully applied to the new AIP submarine Navy . Because it does not rely on air to promote the power plant , dramatically reducing the submarine noise , make long-term submarine underwater navigation , and enhance the invisibility of the submarine , thereby greatly enhancing the strength of our naval operations .

Prior to this marine engine control technology in very few countries , now fully achieved in the research and development, was hailed as a strong domestic and foreign "Chinese heart. "

Special engine research , Ning Zhu of the China Shipbuilding Industry Corporation 711 Research Institute R & D efforts for decades . In 1975, China Ship Research Institute of the seventh set up 11 special engine laboratory , in June 1996 , the establishment of Special Engine Research Center . Through the " Eighth Five-Year "," Ninth Five-Year "study, one after another breakthrough in the 12 key technologies. In 1998 , they developed completely independent intellectual property rights of ownership of China's first special prototype engine Yuan Li Zhi Hou , Ta Men has developed an engineering prototype , Zongti level has reached the international advanced level , some of the international leading position of technology Chu Yu .

Special engine in the research process , 711 the Institute as an opportunity to train a large number of technology backbone . Over the project from the early days , the research group only 10 people , and now grown to more than 100 people . Emergence of the Shanghai model workers , young scientific talents in Shanghai and other advanced people , it is also the team and has been named People's Liberation Army General Armament Department " Pre-research advanced group " , has twice been awarded the " Shanghai model workers collective " Title .

In order to better promote the application of special engine , 711 Engineering Research Center of the special engine conversion established the overall power technology Co., Ltd. Shanghai Qi Yao , and have built in Shanghai Pudong Zhangjiang High Tech Park of research and experimental base . The recent completion of the Fuzhou Hongmiaoling waste landfill closure and landfill gas power generation projects covering , making this technology in the civilian areas of application are more mature.

What is the AIP submarines ?

AIP is the " air independent propulsion , " the letters , it has now become widely accepted , increasingly popular in countries in the Navy and a great tendency to lead the development of conventional submarines .

Conventionally powered submarine has a fatal weakness : You can not sail in the water for a long time , must always float to the surface to "breathe" , that is used in diesel engines under snorkel battery charging . This is very easy to detect other radar , diesel engine for the battery charging while the noise , are easily detected by the other party to the acoustic equipment , thus greatly increase the exposure rate of conventional submarines , a serious threat to its viability .

AIP Chinese translated means " automatic oxygen consumption and generation devices " , it means that conventional submarines do not often surface , thereby increasing the concealment and surprise . Current AIP system is only as a conventional submarine 's auxiliary power units , allows the submarine submerged time increased from 5 to 7 times. With the AIP technology to mature , it is possible to replace conventional diesel-electric submarine propulsion system to become active power source .

Throughout the world history and current status of AIP , we can choose the AIP program are: closed cycle diesel (CCD) AIP, Stirling engine (SE) AIP , as well as fuel cell (FC) AIP. The three have been the Navy's AIP program were used 〔 1 〕 powers , such as the United Kingdom , the Netherlands, have adopted CCDAIP program , and Sweden have adopted SEAIP program , Germany has adopted FCAIP program . In related news, China's submarines have been using Stirling engine (SE) AIP technology, using the hot air machine (StirlingEngine) is an external heating the gas at different temperatures to make an periodic cyclic compression and expansion of closed -type Engine .

Three kinds of objective function evaluation AIP

AIP program performance CCDAIP SEAIP FCAIP

Good Medium Medium range

Good Medium Medium diving depth

Good low noise level lower middle-

Medium Medium heat distribution to a good outboard

Good middle- lower development cost

Good middle- lower operating costs

Good Medium poor development cycle

Good medium- security unit

Good Medium Good maintenance performance

Developed good moderate bad experience in the wind