With the continuous development of modern urban construction in our country, the scale of urban underground pipeline networks is constantly expanding. As a new type of non excavation repair technology, UV CIPP (UV cured flexible hose) will be widely used in the repair and renewal of urban underground pipeline networks due to its high efficiency and environmental protection characteristics。
This month, UVLINER ? hose materials were applied in the repair of underground pipeline networks in multiple cities including Wuzhong in Ningxia, Jingzhou in Hubei, Huai'an in Jiangsu, Hangzhou in Zhejiang, and Pudong in Shanghai，Successfully completed multiple construction projects with a diameter of DN1000 and above, with a total length of over 5 kilometers for large diameter construction。
Next, let's take a look at the points that need to be noted during the construction process of UV cured hoses with a diameter of DN1000 and above, combined with practical cases。
Project Name: Comprehensive Renovation Project for Drainage and Rainwater and Sewage Pipe Networks
Project location: Jingzhou, Hubei Province
Product specifications：DN1350-12mm-198.16米
Project Name:Municipal drainage network inspection and repair project
Project location：Ningxia Wuzhong
Product specifications：DN1500-10mm-117米
Project Name:Emergency response project for sewage pipeline network
Project location：Huai'an, Jiangsu
Product specifications：DN1200-10mm-110米
Project Name:Organic renewal project for old sewage pipelines in the main urban area
Project location：Hangzhou, Zhejiang
Product specifications：DN1200-14mm-43.5米
1. High strength material: The UV cured hose is made of high-strength glass fiber composite material, which has excellent corrosion resistance and mechanical strength, ensuring stable performance of the pipeline in long-term use。
2. Packaging and transportation: The large-diameter hose adopts a folding design and an independent wooden box. Special reinforcement is made for packaging and loading and unloading over ten tons to reduce transportation and loading and unloading risks。
3. Safety and Environmental Protection: The packaging materials are made of environmentally friendly and recyclable materials, which comply with green construction standards and reduce environmental pollution on the construction site。
1. Efficient Curing: Utilizing UV fast curing technology, the curing time is short, greatly shortening the construction period and reducing the impact on municipal transportation and residential life。
2. Seamless repair: The inner lining hose seamlessly adheres to the original pipeline, forming a smooth and continuous pipe wall, effectively improving the fluid transportation efficiency and durability of the pipeline。
3. Wide applicability：Suitable for various complex pipeline environments，Especially the repair of large-diameter and municipal drainage pipelines has solved many difficulties in traditional excavation construction。
1. The internal environment of pipelines is complex: Large diameter construction generally refers to pipes with a diameter of DN1000 or above, especially during long-distance pipeline repair construction，Easy occurrence of material flipping。
2. High operating requirements for UV curing equipment: due to the large pipe diameter，Highly professional technical personnel are required during the operation of UV curing equipment，Ensure precise control of the curing process。
3. If the repair project is located at the downstream pumping station, which is a necessary passage for rainwater and sewage, the upstream water level will rise during construction, and there will be varying degrees of seepage in the pipes。
1、Before cutting materials with large diameters, construction personnel need to control the placement position and distance of the materials，Folding materials must be ensured to be folded in three equal parts。
2、During the cutting process, it is necessary toEnsure that the material is not scratched, twisted, or piled upThe traction equipment and materials require Add dispersed twisting force device (transfer) case)Easy to cause flipping phenomenon
3、If on-site construction conditions permit, it is recommended that the on-site teamInstall hard temporary drainage equipment to control the upstream water level of the pipeline；If there is water seepage in the construction pipeline due to the upstream water level, the construction party cannot repair the deep water point. It is recommended that the construction party must be careful during the cutting processEnsure the safety of the outer film of the material (without any damage), and during the binding process, elevate the positions at both ends to ensure that the curing effect is not abnormal.
4、Curing speed and standard pressure values for large pipe diameters: Youwei New Materials Co., Ltd. provides a "Product Construction Manual" to guide on-site construction work, which includes curing speed and standard pressure values for different pipe diameters; These data have been tested by our technical department for writing; In the manual provided by our company, providing effective assistance for large-diameter construction is also in line with our company's philosophy。
Our after-sales service
Professional team: providing professional technical support and consulting services，Possess cross regional service capabilities and the ability to flexibly respond to construction challenges in different regions。Ensure that customers receive timely guidance and assistance before, during, and after construction。
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Through this sharing, we hope to provide reference and inspiration for more municipal engineering and pipeline repair projects, and jointly promote the healthy development of urban infrastructure。
