摘要:
The invention relates to a device for cooling a laminar material, more particularly a metal strip 2, by liquid nozzles 11a, 11b, 12a, 12b disposed on both sides. The liquid nozzles 11a, 11b, 12a, 12b take the form of full-jet nozzles and so act upon the surface of the material 2 to be cooled by rebounding jets that zones of shooting flow SS are formed around the point of impingement of the individual rebounding jets.
摘要:
Wind tunnel having a free jet test section for simulating wind direction fluctuations, principally for the investigation of vehicles, equipped with a nozzle which can be rotated when the wind tunnel is operating, in order to alter the wind flow direction, in which arrangement the nozzle comprises a stationary part and a rotatable front part and the nozzle front part is surrounded by a cylinder surface which is sealed off in the manner of a plug in the end wall of the nozzle prechamber in relation to the test chamber; within the nozzle prechamber, which surrounds the nozzle, a compensating flow can take place upon rotation of the nozzle front part, so that the quality of the jet flow of the wind tunnel is, if at all, only barely noticeably impaired by the rotational movement. In order to investigate flow-acoustic problems with a varying wind direction, the wind tunnel can be equipped with sound deadening and sound attenuating devices as well as an absorbing lining.
摘要:
A device for removing liquid from the surface of a moving strip (B), more particularly a rolled strip on a roll stand, by means of a gas, more particularly air, blown on to the moving strip (B), is characterized according to the invention in that disposed transversely of the direction (L) in which the strip runs is a slot nozzle (3) which is directed at the strip surface at an angle (.beta.) of 45.degree. to 90.degree. of its jet oppositely to the direction (L) in which the strip runs, the ratio between the distance (h) of the slot nozzle (3) from the moving strip (B) and the width (s) of the slot is in the range h/s=2 to h/s=10, so that the velocity of emergence of the gas jet blown by the slot nozzle (3) on to the strip (B) is in the range of 0.3
摘要翻译:根据移动带(B)的气体,特别是空气吹送到移动带(B)上的用于从移动带(B)的表面移除液体的装置,更具体地说是滚动支架上的轧制带,其特征在于 沿横向方向(L)设置的本发明是狭缝喷嘴(3),其狭缝喷嘴(3)以与其方向相反的方向的角度(β)为45°至90°的角度(β) (L)中,狭槽喷嘴(3)与移动条(B)的距离(h)与槽的宽度(s)之间的比率在h / s = 2〜 h / s = 10,使得由狭缝喷嘴(3)吹送到带材(B)上的气体射流的出现速度在0.3