Introduction to Changchun Machinery Research Institute of the Ministry of Water Resources

I. Institution Overview

Changchun Machinery Research Institute of the Ministry of Water Resources (abbreviated as "Changchun Institute") is located in Changchun, the "Spring City of Northern China", adjacent to Nanhu Lake in the east and the Automobile City in the west. Founded in 1980, it is a public institution directly under the Ministry of Water Resources and the only professional research and design unit in China focusing on the development and research of specialized construction machinery for water conservancy.

After more than 30 years of development, Changchun Institute has evolved into an integrated technical service organization integrating multiple businesses, including:

• R&D, design and manufacturing of mechanical equipment and permanent equipment for water conservancy and hydropower projects;
• Manufacturing supervision of mechanical equipment and metal structure products;
• Quality inspection of water conservancy products.

II. Organizational Structure

• Establishes the "Water Conservancy Product Quality Testing Center of the Comprehensive Service Bureau of the Ministry of Water Resources"
• Establishes "Changchun Xinhua Engineering Technology Consulting Co., Ltd."
• Establishes the "Intermediate Professional Title Evaluation Committee for Engineering Series" and the "Science and Technology Committee"

III. Qualifications and Honors

• Grade-A supervision qualification for mechanical and electrical equipment and metal structure manufacturing issued by the Ministry of Water Resources
• Design filing qualification for extra-large mobile hoists, extra-large fixed winch hoists and large hydraulic hoists
• Metrology certificate issued by the State Administration for Market Regulation (formerly the State Administration of Quality and Technical Supervision)

IV. Technical Strength

Changchun Institute has a high-quality professional R&D team and a superior scientific research environment. All engineering and technical personnel uphold a rigorous and dedicated spirit, devoting themselves to scientific research and innovation.

Key R&D Fields

• Flood control and drought relief
• River water environment protection
• Farmland water conservancy project construction
• Tidal flat development and utilization

Main Products

To meet diverse needs, the institute has successively developed a series of products, including:

• Amphibious excavators and dredgers
• Dredgers, flood control and emergency transport vehicles
• Flood control command vehicles and pile drivers
• Salt harvesters

V. Scientific Research Achievements

• Has led the compilation of multiple ministerial technical standards for the former Ministry of Water Resources and Electric Power and the current Ministry of Water Resources
• Has undertaken and completed a number of national, provincial and ministerial-level scientific research projects
• Multiple research results have obtained national patents
• Possesses more than 100 sets of advanced testing instruments, most of which have reached world-leading levels

VI. Historical Evolution

June 1980

Approved by the Department of the Ministry of Water Resources ([80] Shui Zao Zi No. 10), Changchun Machinery Research Institute of the Ministry of Water Resources was established as a county-level unit.

1991

• April: The SLWY-60 amphibious hydraulic excavator won the Science and Technology Award of the Ministry of Water Resources.
• September: Established the "Quality Inspection and Testing Center for Specialized Water Conservancy Construction Machinery of the Ministry of Water Resources".

May 1998

Approved by the Department of the Ministry of Water Resources (Ren Zu [1998] No. 13), the Quality Inspection and Testing Center for Specialized Water Conservancy Construction Machinery of the Ministry of Water Resources was attached to the Water Conservancy Product Quality and Standard Research Institute of the Ministry of Water Resources.

2000

• January: The "QYD-40 bucket wheel dredger" won the Third Prize of Jiangsu Provincial Science and Technology Progress Award.
• March: Won the bid for the design project of river and lake dredging dredgers.

2003

Obtained multiple national utility model patents, including the "float-type crawler with sealed and lubricated track chassis".

June 2004

Obtained Grade-B qualification for water conservancy project equipment manufacturing supervision.

2006

• March: The STWD-80 Multi-Functional Dredger passed the new product identification of the Ministry of Water Resources.
• April: The CCWSL-80 Amphibious Excavator passed the new product identification.
• May: Was awarded the title of "Director Unit of the Machinery Branch of China Water Conservancy Enterprise Association".

2007

• Won the bid for equipment supervision of the Xinjiang Lop Nur Potassium Salt Project.
• Obtained multiple utility model patents.
• Obtained Grade-B qualification for manufacturing supervision of mechanical and electrical equipment and metal structures for water conservancy projects.
• October: The CY100 automatic salt harvester filled the domestic gap in this field.

November 2008

The CCWSL-80 amphibious excavator won the "Water Conservancy Innovation Product Award" at the 1st Water Conservancy New Product Application Achievement Exchange and Exhibition of the Ministry of Water Resources.

2009

• January: The STWD-80 multi-functional dredger was awarded the "Water Conservancy Practical Advanced Technology Promotion Product" by the Ministry of Water Resources.
• March: The national agricultural science and technology achievement transformation project Farmland Water Conservancy Dredger undertaken by the institute passed the acceptance inspection.
• June: Obtained the design approval certificate for medium-sized fixed winch hoists and medium-sized mobile hoists issued by the General Station of Water Conservancy Product Quality Supervision of the Ministry of Water Resources.
• September: The key scientific and technological achievement promotion project of the Ministry of Water Resources CCWSL-80 Amphibious Excavator passed the acceptance inspection.
• November: The "amphibious excavator" won the "2000-2009 China Water Conservancy and Hydropower Machinery Product Innovation Award" at the 2nd Water Conservancy and Hydropower Machinery Enterprise Forum hosted by the Comprehensive Service Bureau of the Ministry of Water Resources.

July 2010

Obtained the design approval certificate for large-sized fixed winch hoists and large-sized mobile hoists issued by the General Station of Water Conservancy Product Quality Supervision of the Ministry of Water Resources.

July 2012

Led the scientific research work of the "Key Project" of pneumatic shield gates under the "948 Program" of the Ministry of Water Resources.

February 2013

• Initially established the mechanical model of pneumatic shield gates and provided calculation formulas for the shape of airbags and partial forces in the system.
• Approved by the Comprehensive Service Bureau of the Ministry of Water Resources, the "Water Conservancy Product Quality Testing Center of the Comprehensive Service Bureau of the Ministry of Water Resources" was established and officially unveiled.

June 2015

Solved the detailed calculation method for stress analysis of pneumatic shield gates and provided a calculation and solution method for key parameters of pneumatic shield gates.

August 2016

Cooperated with the Science and Technology Promotion Center of the Ministry of Water Resources to issue scientific and technological evaluation opinions on domestic pneumatic shield gates.

October 2017

Participated in the compilation of Specifications for Manufacturing, Installation and Acceptance of Pneumatic Shield Gate Systems.

March 2018

The Weihe River Pneumatic Gate Project supported by the institute's technology won the Third Prize of Kunlun Science and Technology Award of the Comprehensive Service Bureau of the Ministry of Water Resources.

2019

• May: Led the compilation of Specifications for Design of Pneumatic Shield Gate Systems.
• September: Won the First Prize of Kunlun Science and Technology Award of the Comprehensive Service Bureau of the Ministry of Water Resources.

October 2020

Participated in the compilation of Specifications for Manufacturing, Installation and Acceptance of Hydraulic Gate Systems.

May 2022

Based on years of operation cases of pneumatic shield gates, proposed upgraded and improved technical solutions for air tightness, safety, anchorage structure type and anchorage force of high and long-span dams. Through systematic verification, derivation, calculation and finite element analysis, the institute launched the new-generation pneumatic shield gate with high air tightness, strong safety and stable structure for the first time.

Changchun Institute has always maintained a leading position in the industry and made important contributions to technological innovation and industrial development in the fields of specialized water conservancy construction machinery and pneumatic shield gates.