1. Core Advantage: Full-System Oil-Free Design, Eliminating Pollution at the Source

Traditional water conservancy equipment such as rubber dams and hydraulic flap gates relies on hydraulic oil as the power medium. Long-term operation is prone to seal aging and oil pipeline leakage. Once oil stains seep into water bodies, it will cause water pollution and damage river ecosystems. Developed and manufactured by Qingdao Hechang, the air shield dam breaks the limitations of traditional equipment. It adopts a compressed air power system instead of hydraulic drive. The fully oil-free structural design completely eliminates the risk of oil leakage and fundamentally solves the water pollution problem caused by the operation of water conservancy equipment.

2. Operational Characteristics: Zero-Pollution Operation, Suitable for Various Sensitive Water Areas

The air shield dam features a simple and environmentally friendly operating principle. The steel shield plate is lifted by inflated air bags for water storage and falls down by deflation for flood discharge. It solely uses air as the power source without any hydraulic oil or chemical media involved. As a pollution-free water retaining facility, it achieveszero hydraulic oil, zero leakage and zero impact on water quality during operation. It is highly applicable to water areas with strict water quality requirements, perfectly balancing water retaining, flood control and ecological protection.

3. Core Value: Eco-Friendly, Durable and Low Maintenance Cost

Compared with traditional hydraulic dams that suffer from unavoidable micro oil leakage and regular oil replacement maintenance, Qingdao Hechang air shield dams have prominent environmental advantages. The oil-free operation mode releases no harmful substances into water bodies, effectively protecting the aquatic ecological balance. Meanwhile, the equipment has no oil pipeline structure, requiring no hydraulic oil replacement and suffering no oil circuit failures. It greatly simplifies maintenance procedures and reduces long-term operating costs, serving as a cost-effective green water conservancy device.

4. Core Application Scenarios

• • Water intake of drinking water reservoirs and water source protection projects
• • River ecological restoration and watershed water environment treatment projects
• • Urban landscape rivers and ecological hydrophilic projects
• • Farmland irrigation and urban-rural flood control and drainage systems

Summary: With the core characteristics of oil-free and pollution-free performance, Qingdao Hechang air shield dams innovate traditional water conservancy technologies and provide reliable and long-term high-quality solutions for green ecological water conservancy projects.