2results about How to "Increase the diameter" patented technology

The utility model provides a kind of building insulation board joint sealing device, it is related to insulation board installation technical field, and it includes: glue injection mechanism, the glue injection mechanism includes filling cylinder, one end of the filling cylinder is equipped with connecting barrel, the inside of filling cylinder is sleeved with glue injection pipe, the glue injection pipe is fixedly connected with filling cylinder, the outer surface of the glue injection pipe is sleeved with connecting frame, the connecting frame is fixedly connected with glue injection pipe, the side surface of the connecting frame is fixedly connected with support rod.The utility model, by being provided with glue injection mechanism, the sealant that fills the gap between insulation board is effectively filled into the inside of gap, so that the heat preservation effect when using insulation board is better, and glue injection pipe is set, and the diameter of glue injection pipe is smaller, and then glue injection pipe can be deeply filled into the gap between insulation board, so that sealant can be filled into the inside of gap.

The application discloses a layered sand prevention and polymer injection integrated pipe column and a construction method, relates to the technical field of oil exploitation, and the pipe column comprises a downhole pipe column and a control pipe column. The downhole pipe column comprises a layered sand prevention and polymer injection unit. The layered sand prevention and polymer injection unit comprises a positioning cylinder, an adjustable sand prevention and injection device, a blockage removal injection device and layered packers. The control pipe column comprises a positioning tool and a repeatedly switchable tool. The positioning tool can be positioned with the positioning cylinder, and the repeatedly switchable tool can control and regulate the adjustable sand prevention and injection device and the blockage removal injection device. The application realizes sand prevention and polymer injection integration through the adjustable sand prevention and injection device. The application realizes downhole efficient regulation through the positioning tool and the repeatedly switchable tool.