| 主权项 |
1. A tube bundle having internal support means to mitigate flow-induced vibration, comprising a tube bundle formed from a plurality of longitudinally extending, elongated tubes arranged in rows with tube lanes extending substantially perpendicularly to said rows and separating adjacent rows of tubes, and a tube stake having opposed, substantially planar surfaces inserted in one of said lanes, said tube stake having at least one protrusion fixed to one of said surfaces, said protrusion having a forward end and a rearward end, said tube stake being inserted in said tube lane so that a first tube is located at said forward end of said protrusion and a second, next adjacent tube is located at said rearward end of said protrusion, said protrusion being sized so that, in tube contacting position, said protrusion exerts a force on said tubes including a component substantially parallel to the longitudinal axis of said tube stake, said first tube being contacted by said forward end of said protrusion and being moved in a direction away from said second tube by said protrusion, and said second tube being contacted by said rearward end of said protrusion and being moved in a direction away from said first tube by said protrusion, said first and second tubes thereby being stressed by said stake to add to their rigidity and reduce the vibration of said tubes during the flow of fluid thereacross. |
