摘要 |
According to one embodiment, a nozzle (10) for introducing a fluid (12) comprises a first conduit (36) having a first end and a second conduit (38) having a second end. The second conduit is disposed substantially concentrically wi th the first conduit. The first end is offset from the second end. A third conduit (40) having a third end is provided with the third conduit being disposed substantially concentrically with the first conduit and the second conduit and the third e nd being offset from the first end and the second end. Another embodiment provides a method wherein a first fluid conveying conduit, a second fluid conveying conduit and a third fluid conveying conduit are provided. The second fluid conveying conduit substantially surrounds the first fluid conveying conduit and the third flui d conveying conduit substantially surrounds both the first fluid conveying conduit and t he second fluid conveying conduit. A first fluid flows through the first fluid conveyi ng conduit. A second fluid flows through the second fluid conveying conduit. A third flu id flows through the third fluid conveying conduit. Both the second fluid conveying conduit and the first fluid conveying conduit are substantially simultaneously cleaned.
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