Pipeline lining method

A pipeline lining method, comprising the steps of:

• inserting a tubular lining material impregnated with a thermosetting resin and in an everted state into a pipeline and expanding and pressing the everted tubular lining material against an inner peripheral surface of the pipeline;
• spraying a vapor mist and cooling the sprayed vapor mist with water at normal temperature;
• and
• directing the cooled vapor mist onto the tubular lining material pressed against the inner peripheral surface of the pipeline to cure the thermosetting resin impregnated in the tubular lining material to line the pipeline with the tubular lining material.

A pipeline lining method, comprising the steps of:

• inserting a tubular lining material impregnated with a thermosetting resin and in an everted state into a pipeline and expanding and pressing the everted tubular lining material against an inner peripheral surface of the pipeline;
• spraying a vapor mist and water at normal temperature toward the tubular lining material and mixing the sprayed vapor mist with the sprayed water at normal temperature to cool the vapor mist;
• and
• directing the cooled vapor mist onto the tubular lining material to cure the thermosetting resin impregnated in the tubular lining material to line the pipeline with the tubular lining material.

A pipeline lining method, comprising the steps of:

• inserting a tubular lining material impregnated with a thermosetting resin and in an everted state into a pipeline and expanding and pressing the everted tubular lining material against an inner peripheral surface of the pipeline;
• inserting into the pipeline a tube in conjunction with the insertion of the tubular lining material, the tube being provided with a plurality of spraying means for spraying a vapor mist and positioned at predetermined intervals along a lengthwise direction of the tube;
• spraying a vapor mist using the plurality of spraying means and cooling the sprayed vapor mist;
• and
• directing the cooled vapor mist onto the tubular lining material pressed against the inner peripheral surface of the pipeline to cure the thermosetting resin impregnated in the tubular lining material to line the pipeline with the tubular lining material.

A pipeline lining method, comprising the steps of:

• inserting a tubular lining material impregnated with a thermosetting resin and in an everted state into a pipeline and expanding and pressing the everted tubular lining material against an inner peripheral surface of the pipeline;
• inserting into the pipeline a tube in conjunction with the insertion of the tubular lining material, the tube being provided with a plurality of spraying means for spraying water at normal temperature and positioned at predetermined intervals along a lengthwise direction of the tube;
• spraying a vapor mist toward the lining material;
• spraying water at normal temperature toward the tubular lining material using the plurality of spraying means and mixing the sprayed water at normal temperature with the sprayed vapor mist to cool the vapor mist;
• and
• directing the cooled vapor mist onto the tubular lining material to cure the thermosetting resin impregnated in the tubular lining material to line the pipeline with the tubular lining material.

A pipeline lining method, comprising the steps of:

• inserting a tubular lining material impregnated with a thermosetting resin and in an everted state into a pipeline and expanding and pressing the everted tubular lining material against an inner peripheral surface of the pipeline;
• providing cooling means in a water flow channel along which water at normal temperature is circulated;
• spraying a vapor mist toward the tubular lining material;
• spraying from the water flow channel water at normal temperature toward the tubular lining material and mixing the sprayed water at normal temperature with the sprayed vapor mist to cool the vapor mist and while cooling the water at normal temperature using the cooling means to suppress a temperature rise in the sprayed water at normal temperature;
• and
• directing the cooled vapor mist onto the tubular lining material to cure the thermosetting resin impregnated in the tubular lining material to line the pipeline with the tubular lining material.

A pipeline lining method, comprising the steps of:

• inserting a tubular lining material impregnated with a thermosetting resin and in an everted state into a pipeline and expanding and pressing the everted tubular lining material against an inner peripheral surface of the pipeline;
• in conjunction with the insertion of the tubular lining material, inserting into the pipeline a tube provided with a plurality of spraying means for spraying a vapor mist or hot water mist, each of the spraying means comprising a plurality of nozzles confronting one another;
• spraying from each of the confronting nozzles vapor or hot water supplied thereto under pressure so as to cause the vapor or hot water sprayed from the confronting nozzles to bump together and diffuse in the form of a vapor mist or hot water mist;
• and
• directing the diffused vapor mist or hot water mist onto the tubular lining material pressed against the inner peripheral surface of the pipeline to cure the thermosetting resin impregnated in the tubular lining material to line the pipeline with the tubular lining material.