A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid unfreezing method for metal water supply pipeline
The invention provides a rapid unfreezing method for a metal water supply pipeline, and relates to the technical field of pipeline protection. The method comprises the following steps: determining the model, number and load duration of electric welding machines, and enabling the sum of the load duration of all electric welding machines to be greater than or equal to 100%; and the primary wire and the secondary wire of each electric welding machine are respectively connected and are connected with a power supply. And the primary line and the secondary line of each electric welding machine are connected with the metal surfaces at the two ends of the frozen pipeline correspondingly. And adjusting the current value of the electric welding machine to a rated current value corresponding to the load duration of the electric welding machine. The electric welding machines are alternately used in sequence for unfreezing, so that the continuous working time of the electric welding machines is smaller than or equal to rated continuous working time, and the intermittent time of the electric welding machines is larger than or equal to rated intermittent time. The method is easy to operate, the frozen metal pipeline can be effectively unfrozen, especially the hidden frozen pipeline can be unfrozen only by leaking metal faces at the two ends of the pipeline, large-area dismantling of the ground, walls and the like is avoided, the construction efficiency is improved, and the construction cost is saved.
本发明提供一种金属给水管道快速解冻方法，涉及管道防护技术领域。本方法包括：确定电焊机型号、数量和负载持续率，使所有电焊机负载持续率总和大于等于100%。分别将各个电焊机的一次线和二次线相连并与电源连接。将各个电焊机的一次线和二次线分别与受冻管道两端的金属表面连接。将电焊机电流值调至与电焊机负载持续率对应的额定电流值。各个电焊机依次交替使用进行解冻，使电焊机持续工作时间小于等于额定持续工作时间，电焊机间歇时间大于等于额定间歇时间。此方法操作简单，能有效对受冻金属管道进行解冻，特别是对于已隐蔽的受冻管道，仅漏出管道两端金属面即可进行解冻，避免对地面、墙体等进行大面积拆除，提高施工效率并节省建造成本。
Rapid unfreezing method for metal water supply pipeline
The invention provides a rapid unfreezing method for a metal water supply pipeline, and relates to the technical field of pipeline protection. The method comprises the following steps: determining the model, number and load duration of electric welding machines, and enabling the sum of the load duration of all electric welding machines to be greater than or equal to 100%; and the primary wire and the secondary wire of each electric welding machine are respectively connected and are connected with a power supply. And the primary line and the secondary line of each electric welding machine are connected with the metal surfaces at the two ends of the frozen pipeline correspondingly. And adjusting the current value of the electric welding machine to a rated current value corresponding to the load duration of the electric welding machine. The electric welding machines are alternately used in sequence for unfreezing, so that the continuous working time of the electric welding machines is smaller than or equal to rated continuous working time, and the intermittent time of the electric welding machines is larger than or equal to rated intermittent time. The method is easy to operate, the frozen metal pipeline can be effectively unfrozen, especially the hidden frozen pipeline can be unfrozen only by leaking metal faces at the two ends of the pipeline, large-area dismantling of the ground, walls and the like is avoided, the construction efficiency is improved, and the construction cost is saved.
本发明提供一种金属给水管道快速解冻方法，涉及管道防护技术领域。本方法包括：确定电焊机型号、数量和负载持续率，使所有电焊机负载持续率总和大于等于100%。分别将各个电焊机的一次线和二次线相连并与电源连接。将各个电焊机的一次线和二次线分别与受冻管道两端的金属表面连接。将电焊机电流值调至与电焊机负载持续率对应的额定电流值。各个电焊机依次交替使用进行解冻，使电焊机持续工作时间小于等于额定持续工作时间，电焊机间歇时间大于等于额定间歇时间。此方法操作简单，能有效对受冻金属管道进行解冻，特别是对于已隐蔽的受冻管道，仅漏出管道两端金属面即可进行解冻，避免对地面、墙体等进行大面积拆除，提高施工效率并节省建造成本。
Rapid unfreezing method for metal water supply pipeline
金属给水管道快速解冻方法
CHEN YUNXIANG (author) / NING XIANGBO (author) / LIU ZHENXING (author) / YAN HONGLI (author)
2022-08-09
Patent
Electronic Resource
Chinese
IPC:
E03B
Anlagen oder Verfahren zum Gewinnen, Sammeln oder Verteilen von Wasser
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INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER