公开(公告)号：WO2013034890A2

公开(公告)日：2013-03-14

申请号：PCT/GB2012/052123

申请日：2012-08-30

Applicant: STERIFLOW LIMITED ,  SNOWBALL, Malcolm Robert

Inventor： SNOWBALL, Malcolm Robert

IPC: A23L3/28 ,  A23C3/07 ,  C02F1/32

CPC classification number: A23L3/28 ,  A23C3/076 ,  A23L2/50 ,  A23V2002/00 ,  C02F1/325 ,  C02F2201/3223 ,  C02F2201/3227 ,  C02F2201/328 ,  C02F2209/09 ,  C02F2209/40 ,  C02F2301/024 ,  C02F2301/08 ,  C02F2303/04 ,  C12H1/165

Abstract: A fluid steriliser comprising a fluid duct having a UV transmissive wall providing a surface area for irradiation, wherein the cross section of the duct is between 1x10 -4 m 2 and 5x10 -2 m 2 and the thickness of the duct defines the depth of fluid flow adjacent the UV transmissive wall of no more than 50mm; a source of UV radiation arranged to irradiate fluid flowing in the duct through the UV transmissive wall such that the UV radiation incident on fluid in the duct has a UV power density; a plurality of mixing stages configured to provide turbulent flow in the fluid and spaced apart along the length of the duct wherein the segments of the duct between the mixing stages are arranged to provide flow adjacent the UV transmissive wall; a flow control means arranged to control the linear speed of fluid flow along the duct based on the length of the duct and the UV power density so that at least 300 Joules of UV energy per square metre of the surface area for irradiation is provided to the fluid during the dwell time of the fluid in the duct.

Abstract translation: 一种流体灭菌器，包括具有提供用于照射的表面积的UV透射壁的流体管道，其中管道的横截面在1×10 -4 m 2和5×10 -2 m 2之间，并且管道的厚度限定相邻的流体流动深度 紫外线透射墙不超过50mm; UV辐射源被布置成通过UV透射壁照射在管道中流动的流体，使得入射在管道中的流体的UV辐射具有UV功率密度; 多个混合阶段被配置为在流体中提供湍流并沿着管道的长度间隔开，其中混合阶段之间的管道段被设置成提供邻近UV透射壁的流动; 流量控制装置，其布置成基于管道的长度和UV功率密度来控制沿着管道的流体流动的线速度，使得每平方米的用于照射的表面积的至少300焦耳的紫外线能量被提供给 流体在管道中的流体停留时间内的流体。