The purpose of an impressed current anode in a groundbed is to electronically conduct current to the coke column. In order for this to work, it is critical that the anode be surrounded by well compacted carbonaceous backfill.
In the installation of ELTECH LIDA® tubular anodes, a common practice is to “tape” the anodes to the vent pipe – feeding a single assembly down the hole. However, this can result in the anode being too close to the vent pipe to allow the backfill to fill around the entire anode surface during pumping operations. To make matters worse, the non-conductive vent pipe can serve to shield portions of the anode in contact with it – resulting in uneven current discharge of the anode.
To attach the ELTECH LIDA® tubular anodes to the vent pipe, yet allow sufficient spacing between the anode and the vent pipe, engineers at ELTECH Systems Corporation have developed the Ventralizer.
The Ventralizer’s dual function is to centralize the anode in the hole, and at the same time, provide 1″ of separation between the anode and the vent pipe.
| Ventralizer Size | Actual Ventralizer OD | Recommended Hole Size |
|---|---|---|
| 4″ | 3″ | 3-7/8″ to 6″ |
| 6″ | 5″ | 5-7/8″ to 8″ |
| 8″ | 7″ | 7-7/8″ to 10″ |
| 10″ | 9″ | 9-7/8″ to 12″ |
