In the late 1980s, domestic liquid level instrumentation products still lag behind foreign products in terms of reliability, accuracy and application capability. The product accuracy, digitization, intelligence, integration, low degree of automation, uneven quality, Most general conventional varieties, high-grade smart products less cutting-edge technology and standardization of technology research is still inadequate. Tank level measurement generally use buoy level gauge, buoy level gauge to install a higher demand, the mechanical structure is too Complex, mechanical friction, installation accuracy and linear expansion of the steel will affect the measurement accuracy, especially in the watch a drive mechanism complexity such as watches in general, any one of the parts failure will directly affect the instrument operation, it is easy to form a safety hazard. Very inconvenient, expensive.
In 1990, Wang Dinghua, a master's degree in engineering from Institute of Automation, Chinese Academy of Sciences, was engaged in scientific research and teaching in a university in Xi'an. In his opinion, instrumentation is an applied discipline and how to translate the achievements in the laboratory into economic activities Productivity is their mission of this generation of scientists, the face of the domestic level of technology behind the level measurement, Wang Dinghua determined to completely solve the 'liquid level measurement difficult to repair more difficult' problem so that the measurement is simple, to 'essential' Safety.
(Dinghua electronic founder, external measuring level inventor Wang Dinghua)
In 1992, he was a university teacher out of the laboratory, founded Xi'an Dinghua Electronics Co., Ltd., a newly established new company want to get into the market, lay the industry status, rely on what? Wang Dinghua's answer is' excellent new product 'How to make new products stand out from the many products? Wang Dinghua's answer is' differentiated technology line.' At that time the domestic and foreign liquid level measurement of the basic contact measurement products are generally low accuracy, stability is not high, you need Wang Dinghua persevere and continue to explore, he led the team with great concentration on the basic theory and cutting-edge technology research, to overcome one by one technical difficulties, the development of a hole in the tank installation, there are potential leaks, maintenance and replacement of parking cans, the cost is very high. Out of the world's first use of sonar ranging principle, measuring containers outside the level gauge - external level gauge. The instrument can be in contact with the media case, measured from the outside of the container the exact height of the liquid level to achieve The real isolation measurement, the world's first, but also a high profile industry, a technological innovation, effective solution to the long troubled oil, stone , The military depot, chemical, electric power, storage and transportation, medicine and other industries on the container flammable, highly toxic, highly corrosive, high pressure, high purity, high purity medium level measurement problems, won the majority of the industry at home and abroad the height Evaluation, called "a revolution in level measuring instruments."
(20th century, 90 foreign-level liquid level meter R & D site)
Development, 'good product' and 'good service' make external liquid level gauge a popular product
With the development of automation instrumentation technology, with the support of digital, intelligent and networked technologies, it has shown the development trend of high reliability, versatility and high applicability. Dinghua Electronics has always regarded "safety and reliability" as its important development Direction. Through the principle and structural design innovation, as well as the mature 'micro vibration analysis' and 'variable frequency ultrasonic' technology, precision machining and special processing technology, the external liquid level meter in product quality and technical performance has been fully guaranteed In the overseas leading instrumentation companies have said that to provide 10-year warranty service standards, Dinghua Electronics took the lead in the domestic instrument industry put forward the 'quality service' service concept and standards, the introduction of 'lifetime warranty', 'Paul Paul worry' and other specific services Measures. Products and services have been widely recognized by the mainstream design units and users in China. After more than 20 years of development, the liquid level measuring products have been widely used in refining, chemical, storage and transportation, electric power, metallurgy and medicine Industry, including Sinopec Yangzi Petrochemical, Zhenhai Refining and Chemical, Qingdao Refining and Chemical, PetroChina Daqing Refining, Changqing Refining, Kazakhstan Aktobean Tian, Tianjin Dagu, Luxi Chemical, Dongyue Chemical, China Salt Group, China Coal Group, Guodian, Shaanxi Coal Group and many other well-known enterprises at home and abroad, including more than a thousand customers in 2006 has become China Petrochemical, the National Chemical Control Design Technology Center Station and the China Petroleum and Chemical Investigation and Design Association key products recommended. Products have been exported to Kazakhstan, Bangladesh and other petrochemical enterprises in the Commonwealth of Independent States, South Asian countries and regions, and in 2007 hit Into the military market, access to military qualifications in Lanzhou access certificate.
Do not forget early mind, focus on 25 years, then climb the peak
On the morning of January 8, the CPC Central Committee and the State Council held the 2017 National Science and Technology Awards Ceremony in the Great Hall of the People in Beijing. Party and state leaders Xi Jinping, Li Keqiang, Zhang Gaoli and Wang Huning attended the conference and presented awards to the winners. , The State Council at the General Assembly speech.At the meeting, Xi'an Dinghua Electronics Co., Ltd. (stock abbreviation: Dinghua Electronics; stock code: 837793) independently invented the liquid level measurement technology, won the second prize of the National Technology Invention Award. Dr. Wang Rui, general manager, as the winner of Dinghua Electronics, was invited to attend this conference in Beijing.
(Left: Professor Zhao Yulong, PhD supervisor, Xi'an Jiaotong University Right: Dr Wang Rui, General Manager, Dinghua Electronics)
The core of technological invention is the first of its kind, and the National Invention Invention Award is the highest honor of our country for the major independent innovation technology of originality.After this, we reach the peak again and after winning the first prize of Shaanxi Science and Technology Award in 2012, Jiaotong University joint declaration, through a nationwide screening and multiple rounds of national science and technology expert group defense review, and ultimately come to the fore, won the highest honor on behalf of China's national science and technology award of national technology, not only fully reflects Dinghua electronic core Technology and product technology leadership and process maturity, will also significantly further enhance the market competitiveness of Dinghua products and brand influence, and make Dinghua Electronics Xi'an representative of the typical hard-technology enterprises.