Recently, the 03rd edition of China National Defense News on January 8, 2026, published an article titled Showing Off Our Achievements — A Spotlight on Highlights of the Development and Utilization of Civil Air Defense Projects in Prefecture-level Cities of Jiangsu Province, focusing on the renovation and upgrading results of civil air defense projects across the province.
In the report, the Wuxi Municipal National Defense Mobilization Office’s innovative measure for the maintenance and management of civil air defense projects was highlighted: “Equipped with advanced equipment such as hydrodynamic automatic gates, it can prevent rainwater backflow without electricity, ensuring that the structural functions of the projects remain unaffected.” This flood control solution is a typical application of Junli’s Hydrodynamic Fully Automatic Flood Prevention Gate in the field of civil air defense projects. Since installation, it has successfully blocked water on multiple occasions in projects including Wuxi Jinkui Park, Nanchan Temple, and the Ancient Canal Civil Air Defense Garage, building a solid flood control safety barrier for underground spaces.
Previous Reports on Successful Water Blocking by Wuxi National Defense Mobilization Office
Coverage by Wuxi Jiangnan Evening News
Civil air defense projects are the “lifeline” of urban security, and flood control is a key link in safeguarding this lifeline. The recognition of Junli’s Hydrodynamic Fully Automatic Flood Prevention Gate by China National Defense News demonstrates the important role of technological innovation in the field of people’s livelihood security. The practice of the Wuxi Municipal National Defense Mobilization Office has also proved that this equipment not only effectively solves the industry pain point of rainwater backflow in underground spaces, but also helps civil air defense projects achieve the dual value of “ensuring safety in wartime and protecting people’s livelihood in peacetime”.
About Junli Co., Ltd.
Nanjing Junli Technology Co., Ltd. is a national high-tech enterprise listed on the Jiangsu Science and Technology Innovation Board (stock code: 695233). It has obtained a series of qualification certifications including Jiangsu Provincial Specialized, Refined, Special and New Small and Medium-sized Enterprise, Jiangsu Provincial Technology-based Small and Medium-sized Enterprise, Nanjing Gazelle Enterprise, Nanjing Innovative Leading Enterprise, Nanjing Large-scale Enterprise, Nanjing Credit Management Demonstration Enterprise and AAA-level Credit Enterprise. It has also been recognized as a Nanjing Engineering Technology Research Center.
The company owns more than 100 independent intellectual property rights, and its achievements have been recognized and recommended by two ministries and commissions, included in three national standard atlases, and it has led the formulation of a number of national and group standards.
Hydrodynamic Fully Automatic Flood Prevention Gate
As the core equipment for flood control in civil air defense projects, Junli’s Hydrodynamic Fully Automatic Flood Prevention Gate has achieved a flood control breakthrough featuring “no need for electricity, automatic response and precise protection”. It has obtained the Certificate of Scientific and Technological Achievement Appraisal issued by the National Civil Air Defense Office, as well as the Certificate of Evaluation of Scientific and Technological Achievements in the Construction Industry and Certificate of Promotion of Scientific and Technological Achievements in the Construction Industry issued by the Ministry of Housing and Urban-Rural Development.
The product has won numerous honors including the Gold Award at the Geneva International Invention Exhibition, the Second Prize of Jiangsu Provincial Construction Science and Technology Innovation Achievement, the Excellence Award of Jiangsu Provincial Patent Project, the Nanjing Excellent Patent Award, and the Nanjing Innovative Product title.
Adopting a modular design and taking hydrodynamic force as the core driving source, the Hydrodynamic Fully Automatic Flood Prevention Gate does not rely on external power supply. In case of extreme weather such as rainstorm and waterlogging, it can automatically float up to block water through the principle of water buoyancy; after the danger is eliminated, it can automatically reset without affecting the normal use of civil air defense projects. To date, nearly 1,000 sets of the equipment have been installed in projects such as underground garages, subways and substations worldwide, achieving successful water blocking nearly 100 times with a 100% success rate.
Corporate Honors and Milestones
2026: Junli’s flood prevention equipment was featured in China National Defense News
2026: The person in charge of the enterprise was invited to give a speech at the 1st Scientific and Technological Achievement Release Conference of the China Academy of Building Research
2025: The person in charge of the enterprise was invited to give a speech at the 19th International Seminar on Urban Water Development
2025: The person in charge of the enterprise was invited to attend the annual summary meeting of the National Key R&D Program Project
2025: The research team of Harbin Institute of Technology for the National Key R&D Program visited Junli for investigation
2025: The person in charge of the enterprise was invited to give a speech at the 2025 Annual Exchange Meeting of the Resilient City Professional Committee of the China Association for Engineering Construction Standardization
2025: The person in charge of the enterprise was invited to give a speech at the 2025 Annual Conference and Transportation Sustainable Development Forum of the Engineering Construction Committee of the China Urban Rail Transit Association
2025: The person in charge of the enterprise was invited to give a speech at the 7th Green Underground Space Forum
2025: The person in charge of the enterprise was invited to attend the forum chaired by Xie Weijiang, Deputy Secretary of the Hunan Provincial Party Committee and Secretary of the Yueyang Municipal Party Committee
2025: Junli’s Hydrodynamic Fully Automatic Flood Prevention Gate for Building passed the acceptance of Jiangsu Provincial Standardization Pilot Project
2025: The person in charge of the enterprise was invited to give a speech at the 8th Academic Exchange Conference on Urban Water Safety and Water Management
2025: The person in charge of the enterprise was invited to give a speech at the Inaugural Meeting of the Waterlogging Control Professional Committee of Jiangsu Sponge City Alliance
2025: The person in charge of the enterprise was invited to attend the launch and implementation plan demonstration meeting of the National Key R&D Program Project
2025: The person in charge of the enterprise was invited to give a speech at the 2025 Guangdong-Hong Kong-Macao Greater Bay Area Metro Industry Conference
2025: The person in charge of the enterprise was invited to attend and speak at the forum hosted by the Governor
2024: Obtained the Certificate of Promotion of Scientific and Technological Achievements in the Construction Industry (issued by the Ministry of Housing and Urban-Rural Development)
2024: Rated as a “Provincial Specialized, Refined, Special and New Small and Medium-sized Enterprise”
2024: Won the Excellent Organization Award at the 2nd Underground Space Science Popularization Creative Competition (“Zhuofang Cup”)
2024: The product won the Third Prize at the 2nd Underground Space Science Popularization Creative Competition (“Zhuofang Cup”)
2024: Won the First Prize of Science and Technology Innovation Achievement for “Minimally Invasive and Minor Renovation” in Urban Rail Transit Construction of Jiangsu Civil Engineering and Architecture Society
2024: Rated as an Advanced Collective in Science and Technology Innovation (Urban Rail Transit) by Jiangsu Civil Engineering and Architecture Society
2024: The person in charge of the enterprise was awarded the title of “Advanced Individual in Science and Technology Innovation of Urban Rail Transit by Jiangsu Civil Engineering and Architecture Society”
2024: Honored with the title of “Nanjing Innovative Product”
2023: The person in charge of the enterprise was awarded the title of “Outstanding Young Engineer in Civil Engineering and Architecture of the Yangtze River Delta (Nomination Award)”
2023: The innovative product was included in the “Recommended List of Independent Equipment for China’s Urban Rail Transit”
2023: Selected into the “Nanjing Construction Industry Science and Technology Plan” project
2023: Honored with the title of “Nanjing Innovative Product”
2022: Re-elected as a “Nanjing Gazelle Enterprise”
2022: Passed the re-examination of “National High-tech Enterprise”
2022: Recognized as a “Nanjing Engineering Technology Research Center”
2022: The person in charge of the enterprise was selected into the third-level training object of the 6th “333 High-level Talent Training Project” in Jiangsu Province
2021: Selected as a “Nanjing Large-scale Enterprise”
2021: Selected as a key cultivation enterprise of “Jiangsu High-quality Product”
2021: Won the “Nanjing Innovative Product Award”
2021: Won the “Nanjing Standardization Activity Excellent Case Award”
2021: Won the Second Prize of Jiangsu Provincial Construction Science and Technology Innovation Achievement
2021: Selected into the “2021 Municipal Innovative Leading Enterprise Cultivation Library”
2021: Honored with the title of “Nanjing Gazelle Enterprise”
2021: Won the “Special Mention Gold Award at the Geneva International Invention Exhibition”
2020: Honored with the title of “Nanjing Credit Management Demonstration Enterprise”
2020: Honored with the title of “Contract-abiding and Trustworthy Enterprise”
2020: Won the “Nanjing Excellent Patent Award”
2020: Honored with the title of “Nanjing Intellectual Property Demonstration Enterprise”
2020: Obtained the “AAA-level Credit Rating Certification”
2020: Obtained the ISO9001/14001/45001 system certification
2019: Passed the re-examination of “National High-tech Enterprise”
2019: Undertake the Nanjing Patent Navigation Project
2019: Listed enterprise on the Jiangsu Science and Technology Innovation Board
2019: Won the Excellence Award of Jiangsu Provincial Patent Project
2018: Rated as a “Jiangsu Provincial Intellectual Property Standardization Implementation Unit”
2018: Rated as a “Nanjing Innovative Enterprise”
2018: Obtained the “Jiangsu Provincial Enterprise Credit Management Standardization Certificate”
2018: Rated as an “Advanced Unit in Intellectual Property of Nanjing Urban Area”
2017: Rated as an “Advanced Unit in Intellectual Property of Nanjing Urban Area”
2016: Rated as a “National High-tech Enterprise”
2016: Rated as a “Nanjing Specialized, Refined, Special and New Enterprise”
2016: Rated as a “Member of the Civil Air Defense and Underground Space Branch of the China Exploration and Design Association”
2016: Rated as a “Jiangsu Provincial Private Technology Enterprise”
2014: Rated as a “Jiangsu Provincial Technology-based Small and Medium-sized Enterprise”
Post time: Jan-20-2026