"Environment - friendly Air - shield Dam" Creates Lucid Waters and Lush Mountains
发布时间：2020-07-27
点击量：1046
Yesterday, the reporter saw in a camp of a naval unit stationed in Yantai that the environment - friendly air - shield dam, which was completed and put into use in July, has become a beautiful scenic line in the area for creating "lucid waters and lush mountains". It is known that this air - shield dam integrates river landscape, sewage detection and treatment, and can bring into play the comprehensive effects of river landscape and environmental protection treatment.
It is understood that this air - shield dam project was invested and constructed by the Management Committee of Laishan Economic Development Zone, contracted by Yantai Huawei Rubber Technology Co., Ltd., and equipped with a water quality detection and sewage pumping automatic control system by Shandong Dongrun Instrument Technology Co., Ltd. The project mainly aims at comprehensive river regulation and water resource protection for the benefit of the people in Laishan. Huang Shicai, the project manager of Yantai Huawei Rubber Technology Co., Ltd., introduced, "This air - shield dam has a water - retaining height of 2 meters and a length of 13 meters. It is built in the camp of a naval unit stationed in Yantai and is an environment - friendly air - shield dam. This project will maximize the control and utilization of rainwater resources and the protection and treatment of the river ecological environment. It is the responsibility and obligation of every enterprise and individual to continuously create lucid waters and lush mountains."
What is an air - shield dam? The reporter learned on - site that it is also known as a pneumatic shield - shaped gate. Huawei Company introduced the production and processing technology of the air - shield dam from the American OHI Company, combined with its existing production equipment and production processing technology, and developed a new - type gate structure that integrates the advantages of steel gates and rubber dams while compensating for their deficiencies. With a high technological content and a wide range of applications, it can be used in rivers and spillways in mountainous areas with complex conditions, such as those with a lot of sediment, moving media, and floating objects. It can completely replace other water - retaining structures such as lifting steel gates, automatic flap gates, hydraulic dams, and rubber dams. "By inflating or deflating the air - bag, the steel protection plate can be raised or laid down, and the water level can be adjusted to any height within the design water level. Overflowing at the gate top is allowed. It is an energy - saving and environment - friendly water conservancy facility," said Huang Shicai, and he demonstrated it on - site. Sure enough, under the control of the operating system, the steel plate of the air - shield dam slowly descended. When it dropped below the water - storage level, the water began to flow out slowly from the gate and gradually increased, forming a waterfall - like landscape. The phenomenon would be even more spectacular in the rainy season when the water storage is large.
The water quality detection and sewage pumping automatic control system obtains data support by detecting the water quality with an ammonia - nitrogen and COD analyzer. When the data exceeds the maximum allowable limit of the water quality, it indicates that the river water is polluted. The ammonia - nitrogen and COD analyzer will transmit a sewage pump start - up signal to the PLC control system, and pump the polluted river water into the municipal sewage treatment pipeline network. When the ammonia - nitrogen and COD data return to normal and the alarm signal disappears, or when the level gauge senses that the water level reaches the minimum pumping level of the pump, the sewage pump automatically stops running. The data of the ammonia - nitrogen and COD analyzer, level gauge, etc. will be uploaded to the on - site control platform in real - time, and real - time monitoring on mobile phones can also be achieved through mobile - end software.
In addition, the reporter also learned on - site that this air - shield dam is composed of a rubber air - bag, a steel protection plate (or high - strength cement plate), an inflation and drainage system, and an automatic control system. Under the control of the automatic control system, the rubber air - bag is inflated to support the steel protection plate to block water. It is the primary choice for water - conservancy power generation, urban river landscape, flood discharge, rain and sewage diversion, and other river regulation and renovation projects in China and around the world. At the same time, the Ministry of Water Resources of China began to comprehensively promote the use of air - shield dams as new - technology products to the national water - conservancy system in 2008.
The person in charge of the project of a certain naval unit stationed in Yantai said that after the completion of the environment - friendly air - shield dam, it has achieved the functions of rain - sewage separation and automatic discharge and water storage. It not only continuously ensures the water use safety of the people in Laishan District, but also beautifies the environment of the military camp, becoming a beautiful scenic line. It has truly realized the integration of the military and civilians, with the common aspiration for clean water. Reported by Mu Su, a journalist from YMG, Jiang Nailing, an intern, and 通讯员 Haiyan and Liangliang, with photos taken by them.
