1. Method of laying a cable, or a pipe for the subsequent introduction of a cable, in particular an optical communications cable, in a fresh-water conduit, whereby the surface of the cable or pipe is cleaned during the laying process immediately before entering the fresh-water conduit.
2. Method according to claim 1, wherein the surface of the cable or pipe is cleaned with a jet of liquid which is directed onto the surface of the cable under high pressure.
3. Method according to claim 1, wherein the surface of the cable or pipe is cleaned with rotating brushes.
4. Method according to one of claims 1 to 3, wherein the surface of the cable or pipe is cleaned with a jet of liquid as well as by brushes.
5. Method according to one of claims 1 to 4, wherein grease-dissolving as well as germicidal agents are added to the liquid, the said agents being soluble in water.
6. Method according to one of claims 1 to 5, wherein the surface of the cable or pipe is rinsed with clear water after the cleaning operation.
7. Method according to one of claims 1 to 6, wherein the cable or pipe is drawn into the fresh-water conduit by means of a ball-like, balloon-like or parachute-like element which is fastened to the beginning of the cable and is driven forwards by the fresh water conveyed in the fresh-water conduit.
8. Device for performing the method according to one of claims 1 to 7, whereby a housing with at least two chambers each having an entry aperture and an exit aperture for the cable or pipe to be cleaned, the first chamber having means for mechanically cleaning the surface of the cable or pipe and the second chamber having at least one rinsing device.
9. Device according to claim 8, wherein a number of brushes which act on the surface of the cable or pipe and rotate at high speed are disposed in the first chamber.
10. Device according to claim 8 or 9, wherein an inlet and an outlet for a cleaning liquid which moistens the surface of the cable or pipe are provided in the first chamber.
11. Device according to claim 10, wherein one or more annular nozzles are provided, which spray the cleaning liquid against the surface of the cable or pipe.
12. Device according to one of claims 8 to 11, wherein an inlet and an outlet for a rinsing liquid are provided in the second chamber.
13. Device according to claim 12, wherein one or more annular nozzles which spray the rinsing liquid onto the surface of the cable or pipe are provided in the second chamber.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A ventilator assembly for removing contaminants in cooking exhaust, comprising:
a hood portion having a hood plenum;
an exhaust portion downstream of and in fluid communication with said hood plenum;
an electro-static precipitator having an electro-static cell, wherein said electro-static precipitator is disposed in one of said hood plenum and said exhaust portion; and
at least one ultra-violet lamp for generating ultra-violet radiation disposed upstream of said electro-static precipitator, wherein said ultra-violet radiation reacts with the cooking exhaust and removes collected contaminants from said electro-static cell of said electro-static precipitator.
2. The ventilator assembly of claim 1 further comprising a wash manifold located upstream of said at least one ultra-violet lamp and configured for cleaning said at least one ultra-violet lamp.
3. The ventilator assembly of claim 1 further comprising a wash manifold located downstream of said electro-static precipitator for cleaning said electro-static precipitator.
4. The ventilator assembly of claim 1 further comprising a second ultra-violet lamp for generating ultra-violet radiation disposed downstream of said electro-static precipitator.
5. The ventilator assembly of claim 4 wherein said second ultra-violet lamp generates radiation having a wavelength of at least one of 185 nm and 253.7 nm.
6. The ventilator assembly of claim 5 wherein said 185 nm radiation from said second ultra-violet lamp oxidizes exhaust contaminants and cleans a carbon filter disposed downstream of said second ultra-violet lamp, and said 253.7 nm radiation reacts with the cooking exhaust and removes collected contaminants from said electro-static cell of said electro-static precipitator disposed upstream of said second ultra-violet lamp.
7. The ventilator assembly of claim 4 wherein said exhaust portion comprises a pollution control unit downstream of said hood plenum, and wherein said ultra-violet lamp and said second ultra-violet lamp are disposed in said pollution control unit.
8. The ventilator assembly of claim 1 wherein said ultra-violet lamp generates light having a wavelength of 253.7 nm to reduce the collected contaminants to H2O and CO2.
9. The ventilator assembly of claim 1 wherein said hood portion further comprises at least one secondary filter disposed downstream of a grease extraction baffle.
10. A ventilator assembly for removing contaminants in cooking exhaust, comprising:
a hood portion having a hood plenum;
an electro-static precipitator having an electro-static cell, wherein said electro-static precipitator is disposed in said hood plenum; and
at least one ultra-violet lamp for generating ultra-violet radiation disposed in said hood plenum upstream of said electro-static precipitator, wherein said ultra-violet radiation reacts with the cooking exhaust and removes collected contaminants from said electro-static cell of said electro-static precipitator.
11. The ventilator assembly of claim 10 further comprising a wash manifold located upstream of said at least one ultra-violet lamp for cleaning said at least one ultra-violet lamp.
12. The ventilator assembly of claim 10 further comprising a wash manifold located downstream of said electro-static precipitator for washing said electro-static precipitator.
13. The ventilator assembly of claim 10 wherein said at least one ultra-violet lamp emits radiation of about 253.7 nm.
14. The ventilator assembly of claim 10 wherein said electro-static precipitator is disposed in an upper portion of said hood portion.
15. A ventilator assembly for removing contaminants in cooking exhaust, comprising:
a hood portion having a hood plenum;
an exhaust portion downstream of and in fluid communication with said hood plenum;
an electro-static precipitator disposed said exhaust portion; and
at least one ultra-violet lamp for generating ultra-violet radiation disposed in said exhaust portion upstream of said electro-static precipitator, wherein said ultra-violet radiation reacts with the cooking exhaust and removes collected contaminants from said electro-static cell of said electro-static precipitator.
16. The ventilator assembly of claim 15 further comprising a pollution control unit disposed in the exhaust portion, wherein said electro-static precipitator is disposed in said pollution control unit.
17. The ventilator assembly of claim 16 wherein said at least one ultra-violet lamp is disposed in said pollution control unit upstream of said electro-static precipitator.
18. The ventilator assembly of claim 17 wherein a second ultra-violet lamp is disposed in said pollution control unit downstream of said electro-static precipitator.
19. The ventilator assembly of claim 18 wherein said ultra-violet lamp emits radiation of about 253.7 nm and said second ultra-violet lamp emits radiation of about 253.7 nm and 185 nm.
20. The ventilator assembly of claim 19 further comprising a first wash manifold disposed upstream of said electro-static precipitator and a second wash manifold disposed downstream of said electro-static precipitator.