Apparatus and method for lining large diameter pipes with an environmentally compatible impervious membrane
A method and apparatus is disclosed for remotely and robotically installing an organic, monolithic, structural and non structural, circumferential and partial radius membranes in conduits, pipelines or passageways. The included apparatus has the mechanical function to manually or automatically center the liner dissipation device in any geometrical shape. The included apparatus possesses the remote controlled capability to manipulate centrifugal dissipation of the liner to afford consistent thickness on any shaped profile or flat surface of the pipe wall surface. The apparatus includes a manual or automatic mechanical scissoring device for elevation changes and a manual or automatic rotational table for shaft alignment. The apparatus includes a means of automated self alignment by way of proximity sensors. The pendulum oscillation bracketing incorporates a fluid driven motor assembly communicating with a bored shaft and integrates as many as two offset dissipation devices. The included apparatus has both fluid and electrical rotary unions to transmit fluids and current from fixed ports to a rotating shaft assembly. The included apparatus has a mechanical function facilitating cutting and retrieval of cured spray build up on the spray orifice. This method and apparatus will allow for continuous lining applications of any thickness in one pass, in conduits and passageways employing multi component liquid polymers with rapid mechanical properties formation.
1. A method of spry lining a large diameter pipe, a conduit, structure or passageway comprising the steps of:
(a) connecting a umbilical to an spray liner device wherein the umbilical comprises two hoses for a two part liner, an electrical supply, an air supply hose, cctv connection and equipment control cables;
(b) connecting the cctv connection, equipment control cables, air supply hose, electrical supply and controls for the two part liner to a control location;
(c) connecting an air supply hose to motors powering a spray liner device track system;
(d) connecting the two hoses for the two part liner to an impingement block;
(e) connecting an air supply hose to one or more air motors powering a servo drive for extending a spray nozzle forward and backward and to rotate the spray nozzle and install liner on the inside wall of a pipe; and
(f) connecting a remotely controlled rotational table powered to rotate, scissor leg table and sensors, and cctv proximate to said rotational and scissor leg tables controlling the position of the spray nozzle;
(g) maintaining the spray nozzle in the center of the pipe using a remotely controlled rotation table and scissor leg table.
2. The method of claim 1 further comprising adjusting the pressures, velocities and the flows of the two part liner to the spray liner device.
3. The method of claim 1 further comprising the spray lining of pipe, conduit, structure or passageway without placing an operator within the pipe, conduit, structure or passageway during the spray lining.
4. The method of claim 1 further comprising moving a rotating rod in a curved oscillating direction.
5. The method of claim 1 further comprising moving a termination rod in the impingement block from a remote location.