Fire-free method for repairing leakage of pipeline

Abstract

The invention discloses a fire-free method for repairing the leakage of a pipeline, which comprises the steps: coating one layer of glass steel plate at the leakage position of the pipeline; coating one layer of resin binding agent; winding one layer of glass fabric; repeatedly the steps of coating-winding at 4-10 times; and coating one layer of resin binding agent and curing agent on the surface of a repairing layer. Compared with the repairing method by means of electric welding and gas welding, the method is free of free and safely operated, and can be operated without stopping producing, thereby being capable of reducing the economic loss caused by stop production; the repaired pipeline has the characteristics of strong adhesive force, good chemical corrosion-resistant performance, high toughness, high stability, good oil-resistant performance and cold-resistant performance, and the like; and the method can be used for fast reinforcing and stopping the leakage of perforated and corroded holes on the long-dilapidated pipeline in the coking industry, thereby being time-saving and labor-saving, having low price, and being capable of immediately stopping the leakage without influencing the production.

Description

technical field [0001] The invention relates to a pipeline repair method, in particular to a non-fired pipeline leakage repair method, which is suitable for the repair of various inflammable and explosive pipeline leakage and liquid pipeline (petroleum, ammonia water) leakage under normal production conditions, especially It is suitable for the repair of pipeline leakage in the production field of coking industry. Background technique [0002] The coking industry belongs to the first-class fire protection industry. There are many pipelines such as gas and ammonia water, and the process is complicated. During the production process, if pipeline leakage occurs, it will cause major safety hazards and must be repaired in time. Repair methods such as electric welding and gas welding are usually used for repair. This repair method has great disadvantages: (1) The operation is dangerous and complicated. It is necessary to stop production and then clean the pipeline with steam or in...

AI Technical Summary

Problems solved by technology

Repair methods such as electric welding and gas welding are usually used for repair. This repair method has great disadvantages: (1) The operation is dangerous and complicated. It is necessary to stop production and then clean the pipeline with steam or inert gas before operation. There are impurities such as tar and condensate in it, and welding is difficult, and leakage will occur repeatedly if the welding is not firm; (2) If the main gas pipeline leaks, it will cause the entire line to stop production during repair, which will affect production for a long time and cause major economic losses; (3) The raw gas produced by the coke oven cannot be recovered when production is stopped, which will cause smoke and fire in the coke oven, waste a lot of gas, and pollute the environment; (4) Repairing will also affect the normal heating of the coke oven, resulting in a significant drop in temperature of the coke oven and damage to the furnace body

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