Pipe renovation filtration system
AssigneePipe Lining Enterprises, Inc.
InventorLarry W. Kiest, Jr.
Life of this patent
Estimating the term…
Abstract
A filtration system is used with a pipe repair system, such as a cured-in-place pipe lining system. Before, during, and/or after the repair of the pipe with the pipe lining system, air from inside the pipe is directed into a filtration system. The filtration system removes contaminants, such as VOCs and other harmful gases, particles, and the like, with a filter, and then the filtered air is exhausted from the system. The filter can be a carbon filter or other filter that can remove harmful or hazardous materials and particles from the air prior to exhaust. The air is also sensed to acquire information, such as temperature, pressure, composition, flow, or the like.
Claims23
A method of repairing a pipe system comprising:
- repairing at least a portion of the pipe system using a cured-in-place-pipe system comprising a resin impregnated liner pressed against the wall of a pipe of the pipe system;
- curing the resin impregnated in the liner with steam;
- urging the steam through the pipe system to an exhaust location;
- filtering the steam at the exhaust location by passing the steam through a first filter to remove at least some water droplets from the steam and passing the remaining steam through a second filter to remove contaminants from the remaining steam.
A system for filtering steam and/or air associated with the repair of a pipe system, comprising:
- a resin impregnated liner positioned at least partially in a pipe of the pipe system;
- a pressure source to press the resin impregnated liner against the wall of the pipe, the pressure source comprising pressurized steam;
- a filtration system at an exhaust location of the pipe system, the filtration system comprising a first filter to remove at least some water droplets from the pressurized steam and a second filter that receives the pressurized steam from the first filter and configured to remove contaminants therefrom.
A method of filtering steam and/or air from a pipe system being repaired with CIPP, the method comprising:
- directing a mixture of steam and compressed air through a resin impregnated liner towards an exhaustion location;
- pressing the liner against the wall of a pipe with the mixture;
- filtering the mixture at the exhaust location with a first filter that removes water droplets from the mixture;
- directing remaining mixture from the first filter through a second filter to remove contaminants from the remaining mixture;
- and
- exhausting the remaining mixture after the second filter.
Dependencies are inferred from the claim text.