| 摘要 |
A lance injector includes: an outer tubular body (15) and an inner tubular body (16), which extend along a common axis (A) and define a first fluid line (22) in a gap between the outer tubular body (15) and the inner tubular body (16), and a second fluid line (23) in the inner tubular body (16); a nozzle (18) connected fluidically to the first fluid line (22) and the second fluid line (23), at respective first ends (15a, 16a) of the outer (15) and inner (16) tubular bodies; and constraint members (17, 27, 30) configured so as to prevent the relative axial slide between the outer tubular body (15) and the inner tubular body (16) in a locking region at the respective first ends (15a, 16a), and such to permit the relative axial slide between the outer tubular body (15) and the inner tubular body (16) as effect of expansion elsewhere. |
