WO2009109800A1 - Multi impact type water mist nozzle - Google Patents
Multi impact type water mist nozzle Download PDFInfo
- Publication number
- WO2009109800A1 WO2009109800A1 PCT/IB2008/000611 IB2008000611W WO2009109800A1 WO 2009109800 A1 WO2009109800 A1 WO 2009109800A1 IB 2008000611 W IB2008000611 W IB 2008000611W WO 2009109800 A1 WO2009109800 A1 WO 2009109800A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- impact
- deflective
- water mist
- mist nozzle
- ring
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
Definitions
- the operation theory of diffuser impingement nozzles is by hitting a relatively stable coherent water jet against a diffused
- the diffuser breaks the stream into a high momentum mist with largest rang of droplets diameters compared to other types water mist nozzles. 90% of the droplets diameters are smaller than 600 microns.
- the operating pressures of the impingement nozzles are about 7 bar to 17 bar.
- impingement nozzles can be closed end automatic releasing or open end deluge type for total flooding and local protection.
- the diffuser designs of the impingement nozzles include multi slots type, spherical type and spiral type.
- a multi impact type water mist nozzle which include a body, impact needles, along axis of the body from top downward, it is the water inlet, the main channel, the branch channels.
- the number of outlets of the branch channels is same as the number of the impact needles.
- the impact needles are in U shape, and they are evenly distributed and are coaxial with the axis of the body.
- One end of the U shape impact needle is fixed end which stamped at rim of the lower surface of the body.
- Other end of the impact needle is the impact surface, which is facing and perpendicular to the axis of the branch channel, characterized in that the outlets of the branch channels are evenly distributed on the inner and outer deflective rings.
- the inner and outer deflective rings are coaxial to the axis of the body and adhered together. The deflective angles of the inner and outer deflective rings are not equal.
- the impact surface of the impact needle is with distance lesser than 1 mm from the branch channel outlet.
- the advantage of this invention is simple structure, convenient installation; it allows the diameter of the branch channel outlet to be selected for different applications, flow and quality of water.
- the number of branch channels is selected for different applications, flow and quality of water.
- the nozzle can be open type or closed type with temperature control device.
- the invented open type nozzle can be applied in deluge type total flooding and local protection systems.
- the invented closed type nozzle can be applied in automatic releasing system.
- the multi impact water mist nozzle can suppress and extinguish Classes A, B,C and K fires.
- the multi impact water mist nozzle can be used in any applications which water mist is needed, such as area humidification, gas turbine cooling etc.
- Figure 1 drawing of the open end type multi impact type water mist nozzle
- Figure 2 drawing of the closed end type multi impact type water mist nozzle.
- the difference of this embodiment from embodiment 1 is the additional of temperature control device.
- the temperature control device located at the main channel (4), coaxial with the body (1), from top downward is the sealing ring (10), valve body (11), glass bulb (12) and valve cover (13).
- the valve body (11) is fixed in position by the sealing ring (10) at the top and the glass bulb (12) at the bottom..
- the glass bulb (12) is supported by the inner central surface of valve cover (13) at the bottom.
- the valve cover (13) is located lower than the branch channels (3) and connected to the body (1) by screw thread. It forms a closed end device for the water mist nozzle.
- the closed end water mist nozzle has the temperature control devise, the nozzle will open at definite temperature.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2008/000611 WO2009109800A1 (en) | 2008-03-07 | 2008-03-07 | Multi impact type water mist nozzle |
GB0919976A GB2470244A (en) | 2008-03-07 | 2008-03-07 | Multi impact type water mist nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2008/000611 WO2009109800A1 (en) | 2008-03-07 | 2008-03-07 | Multi impact type water mist nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009109800A1 true WO2009109800A1 (en) | 2009-09-11 |
Family
ID=41055584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2008/000611 WO2009109800A1 (en) | 2008-03-07 | 2008-03-07 | Multi impact type water mist nozzle |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2470244A (en) |
WO (1) | WO2009109800A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106492383A (en) * | 2016-10-31 | 2017-03-15 | 广州中国科学院工业技术研究院 | Fine mist spray head component |
CN115779297A (en) * | 2022-11-17 | 2023-03-14 | 上海华锐救援装备有限公司 | Water curtain generating device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08266677A (en) * | 1995-03-31 | 1996-10-15 | Nohmi Bosai Ltd | Combined fire-extinguishing chemical spray nozzle |
CN1772393A (en) * | 2004-11-09 | 2006-05-17 | 财团法人工业技术研究院 | Sprayer |
CN2815426Y (en) * | 2005-09-01 | 2006-09-13 | 韩铁夫 | Multi-nozzle closed medium-low pressure fine fog spraying head |
CN2817908Y (en) * | 2005-08-18 | 2006-09-20 | 公安部上海消防研究所 | Oscillating fine fog nozzle |
CN1833778A (en) * | 2006-04-21 | 2006-09-20 | 大连保税区荣昌消防设备工程有限公司 | Diffusion impact type fine atomizer nozzle |
WO2006102713A1 (en) * | 2005-03-31 | 2006-10-05 | Podmajersky, Karol | A dispersion and aeration apparatus for compressed air foam systems |
CN201143459Y (en) * | 2007-11-27 | 2008-11-05 | 姜翠屏 | Multi-impact type fine water mist nozzle |
-
2008
- 2008-03-07 WO PCT/IB2008/000611 patent/WO2009109800A1/en active Application Filing
- 2008-03-07 GB GB0919976A patent/GB2470244A/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08266677A (en) * | 1995-03-31 | 1996-10-15 | Nohmi Bosai Ltd | Combined fire-extinguishing chemical spray nozzle |
CN1772393A (en) * | 2004-11-09 | 2006-05-17 | 财团法人工业技术研究院 | Sprayer |
WO2006102713A1 (en) * | 2005-03-31 | 2006-10-05 | Podmajersky, Karol | A dispersion and aeration apparatus for compressed air foam systems |
CN2817908Y (en) * | 2005-08-18 | 2006-09-20 | 公安部上海消防研究所 | Oscillating fine fog nozzle |
CN2815426Y (en) * | 2005-09-01 | 2006-09-13 | 韩铁夫 | Multi-nozzle closed medium-low pressure fine fog spraying head |
CN1833778A (en) * | 2006-04-21 | 2006-09-20 | 大连保税区荣昌消防设备工程有限公司 | Diffusion impact type fine atomizer nozzle |
CN201143459Y (en) * | 2007-11-27 | 2008-11-05 | 姜翠屏 | Multi-impact type fine water mist nozzle |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106492383A (en) * | 2016-10-31 | 2017-03-15 | 广州中国科学院工业技术研究院 | Fine mist spray head component |
CN115779297A (en) * | 2022-11-17 | 2023-03-14 | 上海华锐救援装备有限公司 | Water curtain generating device |
CN115779297B (en) * | 2022-11-17 | 2023-11-17 | 上海华锐救援装备有限公司 | Water curtain generating device |
Also Published As
Publication number | Publication date |
---|---|
GB2470244A (en) | 2010-11-17 |
GB0919976D0 (en) | 2009-12-30 |
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