GB1467258A - Nozzle device - Google Patents
Nozzle deviceInfo
- Publication number
- GB1467258A GB1467258A GB2333273A GB2333273A GB1467258A GB 1467258 A GB1467258 A GB 1467258A GB 2333273 A GB2333273 A GB 2333273A GB 2333273 A GB2333273 A GB 2333273A GB 1467258 A GB1467258 A GB 1467258A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- throat
- fluid
- jet tube
- expansion portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
- B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
- B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
Landscapes
- Nozzles (AREA)
Abstract
1467258 Ejectors IMPERIAL CHEMICAL INDUSTRIES Ltd 23 April 1974 [16 May 1973] 23332/73 Heading F1E [Also in Division B1-2] A high-pressure liquid jet device, suitable for hydrodynamic cleaning, comprises a jet tube 7 for delivering liquid, e.g. water or an organic solvent, at a pressure of at least 50 bar and a nozzle 1 having an internal passage 2, the nozzle comprising an entry zone 3 for fluid, e.g. steam, a restricted throat zone 4, a frusto-conical expansion portion 5 and a cylindrical mixing zone 6 having a discharge orifice the end of the jet tube 7 being disposed in the throat zone 4 and being directed towards the discharge orifice. In use, fluid admitted to the entry zone 3 and passing through the throat zone 4 is accelerated in the expansion portion 5 to a speed in excess that of the liquid leaving the jet tube 7, and in the mixing zone 6 the fluid imparts momentum to the liquid leaving the jet tube. The radius of curvature of the smoothly curved upstream shoulder of the throat zone is between one-tenth and twice the diameter of the throat. The included angle of the frusto-conical expansion portion 5 is between 5 degrees and 15 degrees, and the mixing zone 6 has a length: diameter ratio of between 1:1 and 10:1. The ratio of the fluid pressures at the inlet end of the entry zone 3 and the throat zone 4 may be so arranged that the fluid is accelerated to sonic velocity at the throat zone 4, and accelerated to supersonic velocity in the expansion portion 5. The fluid may be heated before passing through the throat zone 4. The orifice speed of the jet is typically 100 to 500 m/sec and the liquid supply pressure may be up to 7000 bar, but is preferably less than 1000 bar. The jet tube 7 may be of hardened steel or tungsten carbide.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2333273A GB1467258A (en) | 1973-05-16 | 1973-05-16 | Nozzle device |
BE144166A BE814845A (en) | 1973-05-16 | 1974-05-10 | HIGH PRESSURE LIQUIDS PROJECTION DEVICE |
FR7416565A FR2229469B1 (en) | 1973-05-16 | 1974-05-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2333273A GB1467258A (en) | 1973-05-16 | 1973-05-16 | Nozzle device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1467258A true GB1467258A (en) | 1977-03-16 |
Family
ID=10193909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2333273A Expired GB1467258A (en) | 1973-05-16 | 1973-05-16 | Nozzle device |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE814845A (en) |
FR (1) | FR2229469B1 (en) |
GB (1) | GB1467258A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2337085A (en) * | 1998-05-08 | 1999-11-10 | Aea Technology Plc | A steam injector for pumping slurry |
CN114436398A (en) * | 2022-01-25 | 2022-05-06 | 中国恩菲工程技术有限公司 | Material conveying device, sewage treatment equipment and sewage treatment method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3007709A1 (en) * | 1980-02-29 | 1981-10-01 | Gleitlagertechnik Gmbh, 7000 Stuttgart | DEVICE FOR FEEDING COOLANT IN TOOLS |
CN113082342B (en) * | 2021-03-30 | 2022-08-02 | 绵阳美科电子设备有限责任公司 | Disposable pipeline system for cutting or flushing wound surface by adopting high-pressure fluid |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1748604A (en) * | 1928-04-16 | 1930-02-25 | Marquette Mfg Co | Steam nozzle |
US3718805A (en) * | 1971-01-13 | 1973-02-27 | E Posey | Heated fluid gun |
-
1973
- 1973-05-16 GB GB2333273A patent/GB1467258A/en not_active Expired
-
1974
- 1974-05-10 BE BE144166A patent/BE814845A/en unknown
- 1974-05-14 FR FR7416565A patent/FR2229469B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2337085A (en) * | 1998-05-08 | 1999-11-10 | Aea Technology Plc | A steam injector for pumping slurry |
GB2337085B (en) * | 1998-05-08 | 2002-03-20 | Aea Technology Plc | Slurry processing plant |
CN114436398A (en) * | 2022-01-25 | 2022-05-06 | 中国恩菲工程技术有限公司 | Material conveying device, sewage treatment equipment and sewage treatment method |
Also Published As
Publication number | Publication date |
---|---|
FR2229469B1 (en) | 1978-11-17 |
FR2229469A1 (en) | 1974-12-13 |
BE814845A (en) | 1974-11-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |