发明授权
- 专利标题: Steam injector
- 专利标题(中): 蒸汽喷射器
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申请号: US943760申请日: 1992-09-11
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公开(公告)号: US5323967A公开(公告)日: 1994-06-28
- 发明人: Nobuhiko Tanaka , Tadashi Narabayashi , Hiroshi Miyano , Hideaki Takahashi , Katsumi Yamada , Makoto Yasuda
- 申请人: Nobuhiko Tanaka , Tadashi Narabayashi , Hiroshi Miyano , Hideaki Takahashi , Katsumi Yamada , Makoto Yasuda
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX3-234707 19910913; JPX3-239346 19910919; JPX3-284924 19911030
- 主分类号: F04F5/46
- IPC分类号: F04F5/46 ; B05B7/04 ; B05B7/00
摘要:
A steam injector includes a casing having water supply port and a steam intake port, the casing being generally composed of two halves fastened integrally, a water nozzle and a steam nozzle both disposed in the casing and communicated with the water supply port and the steam intake port, respectively, a steam-water mixing nozzle disposed on the downstream side in the casing and a diffuser disposed further downstream side in the casing. The steam injector further includes a guide member such as guide vane or spacer ring for guiding the steam to the steam-water mixing nozzle. The steam injector may includes a needle valve disposed in a steam jetting nozzle, disposed axially in the central portion of the casing, which is provided with a heat transfer preventing structure such as hollow wall structure provided on the outer peripheral surface of the steam jetting nozzle. The water nozzle may be composed of a wear resisting material and the wear resisting material may be provided on the surfaces of the steam jetting nozzle and the diffuser.
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