SE462796B - EJECTOR WITH PERIPHERAL SUPPLY OF FUEL GAS - Google Patents
EJECTOR WITH PERIPHERAL SUPPLY OF FUEL GASInfo
- Publication number
- SE462796B SE462796B SE8900076A SE8900076A SE462796B SE 462796 B SE462796 B SE 462796B SE 8900076 A SE8900076 A SE 8900076A SE 8900076 A SE8900076 A SE 8900076A SE 462796 B SE462796 B SE 462796B
- Authority
- SE
- Sweden
- Prior art keywords
- ejector
- insert
- housing
- seat
- fuel gas
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/42—Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jet Pumps And Other Pumps (AREA)
Description
462 796 FIGURER Fig 1 visar ett längdsnitt genom en ejektor, fig 2 ett snitt enligt A-A i fig 1, fig 3 ett snitt vid B-B i fig 1, fig Ä i större skala ett avsnitt av snittet enligt fig 1 och fig 5 en utbredning av en i ejektorn ingående konisk insats med urfräsningar som bildar munstycken och diffusorkanaler. 462 796 FIGURES Fig. 1 shows a longitudinal section through an ejector, Fig. 2 a section according to A-A in Fig. 1, Fig. 3 a section at B-B in Fig. 1, Fig. Ä on a larger scale a section of the section according to Fig. 1 and Fig. 5 an extension of one included in the ejector conical insert with cutouts that form nozzles and diffuser channels.
I figurerna betecknar 1 en ejektor i en pneumatisk transportanordning mellan en uppströms sugledning 2 och en nedströms transportledning 3.In the figures, 1 denotes an ejector in a pneumatic transport device between an upstream suction line 2 and a downstream transport line 3.
Ejektorn består av ett ejektorhus 4 med ett drivgastillopp 5 och en hyls- formad insats 6. Huset Ä är utformat med ett koniskt säte 7 och insatsen med ett till denna avpassat, utvändigt koniskt parti 6a. Hylsan eller insatsen 6 är med sin fläns 6b fixerad i huset 4 av sugledningen 2. Till- loppets 5 drivgaskanal 8 mynnar i ett ringformat rum 9 som bildas av en ringformig ursvarvning i huset 4 och av hylsans fläns 6b.The ejector consists of an ejector housing 4 with a greenhouse gas inlet 5 and a sleeve shaped insert 6. The housing Ä is designed with a conical seat 7 and the insert with an externally conical portion 6a adapted thereto. The sleeve or the insert 6 is fixed with its flange 6b in the housing 4 of the suction line 2. the greenhouse gas channel 8 of the barrel 5 opens into an annular space 9 formed by a annular turning in the housing 4 and of the flange 6b of the sleeve.
I yttre ytan i hylsans 6 koniska del 6a finns frästa spår som tillsammans med huset 4, som omger hylsan 6, bildar strömningskanaler 10. Inloppet 10a kommunicerar med det ringformade rummet 9 och utloppet med öppningen 11 i huset 4. Dessa kanaler 10 har ett från inloppet 10a mot utloppet 10b ökande tvärsnitt och bildar Laval-munstycken där gasen efter minsta tvär- snittet vid inloppet genom expansion accelereras till mycket hög hastighet i den nedströms inloppet som diffusor utformade kanalen. Denna mynnar vid genomloppskanalens 11 periferi. Drivgasens höga hastighet ger mycket hög driveffekt med liten gasmängd. Genom att drivgasen tillföres perifert i ejektorn hindras partiklar från att träffa väggen i ejektorgenomloppet 11 och väggen i röret 3 närmast diffusorn där partikelhastigheten kan bli mycket hög. För att uppnå bättre blandning mellan drivgas och partikulärt material som skall transporteras utformas kanalerna lämpligen så att deras centrumlinje bildar en viss vinkel u mot ett genom ejektorns längdaxel gående plan. up,In the outer surface of the conical part 6a of the sleeve 6 there are milled grooves which together with the housing 4, which surrounds the sleeve 6, forms flow channels 10. The inlet 10a communicates with the annular space 9 and the outlet with the opening 11 in the housing 4. These channels 10 have one from the inlet 10a towards the outlet 10b increasing cross-section and forming Laval nozzles where the gas after the the cut at the inlet by expansion is accelerated to a very high speed in the downstream inlet as a diffuser shaped channel. This opens at the periphery of the passageway 11. The high speed of the propellant gives a very high speed drive power with small amount of gas. By supplying the propellant peripherally in the ejector prevents particles from hitting the wall in the ejector passage 11 and the wall of the tube 3 closest to the diffuser where the particle velocity can be very high. To achieve a better mixture between propellant and particulate matter materials to be transported, the channels are suitably designed so that their center line forms a certain angle u to one through the longitudinal axis of the ejector going plan. up,
Claims (3)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8900076A SE462796B (en) | 1989-01-11 | 1989-01-11 | EJECTOR WITH PERIPHERAL SUPPLY OF FUEL GAS |
EP19900901918 EP0453478A1 (en) | 1989-01-11 | 1990-01-10 | Ejector with peripheral supply of propellent gas |
PCT/SE1990/000015 WO1990008083A1 (en) | 1989-01-11 | 1990-01-10 | Ejector with peripheral supply of propellent gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8900076A SE462796B (en) | 1989-01-11 | 1989-01-11 | EJECTOR WITH PERIPHERAL SUPPLY OF FUEL GAS |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8900076D0 SE8900076D0 (en) | 1989-01-11 |
SE8900076A SE8900076A (en) | 1989-01-11 |
SE462796B true SE462796B (en) | 1990-09-03 |
Family
ID=20374716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8900076A SE462796B (en) | 1989-01-11 | 1989-01-11 | EJECTOR WITH PERIPHERAL SUPPLY OF FUEL GAS |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0453478A1 (en) |
SE (1) | SE462796B (en) |
WO (1) | WO1990008083A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2517779B2 (en) * | 1990-05-18 | 1996-07-24 | 清之 堀井 | Coanda spiral flow unit |
US6036407A (en) * | 1997-09-03 | 2000-03-14 | Exxon Chemical Patents Inc. | Solids conveying system for compacted, friable solids that can not be pushed or compressed |
US6368028B1 (en) | 1997-09-03 | 2002-04-09 | Exxonmobil Chemical Patents Inc. | Conveying systems for compacted, friable solids |
AU8924298A (en) * | 1998-09-23 | 2000-04-10 | Exxon Chemical Patents Inc. | Pneumatic conveying system for compacted, friable solids |
US6894247B2 (en) | 2002-07-26 | 2005-05-17 | Honeywell International, Inc. | Powder feed splitter for hand-held laser powder fusion welding torch |
US9963253B2 (en) * | 2011-07-11 | 2018-05-08 | Altria Client Services Llc | Air accelerator dosing tube |
AU2013218791B2 (en) * | 2012-02-07 | 2017-07-06 | Commonwealth Scientific And Industrial Research Organisation | Reducing friction of a viscous fluid flow in a conduit |
KR101978982B1 (en) * | 2017-07-17 | 2019-05-15 | 장희수 | Waterjet ejector for object transport |
CN110562746B (en) * | 2019-09-30 | 2021-06-18 | 安徽百盛源包装材料有限公司 | Edge-suction thread airflow adjusting device of film coating machine |
CN114086332A (en) * | 2020-08-24 | 2022-02-25 | 高林股份有限公司 | Residual scrap collecting device of sewing machine and negative pressure joint thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3708207A (en) * | 1971-04-16 | 1973-01-02 | Dynamic Air | High pressure booster valve |
DE2516402A1 (en) * | 1975-04-15 | 1976-10-28 | Lutz Tilo Dipl Ing Kayser | Powdery material continuous conveyor - has material metering unit coaxial to mixing chamber on upstream side |
EP0063960A3 (en) * | 1981-04-28 | 1983-05-11 | Joshua Bigwood & Son Limited | Improvements relating to apparatus for the conveying of particulate material |
US4771580A (en) * | 1984-10-29 | 1988-09-20 | Hardblast Australia Pty. Ltd. | Nozzle for sand blasting |
FR2575678B1 (en) * | 1985-01-04 | 1988-06-03 | Saint Gobain Vitrage | PNEUMATIC POWDER EJECTOR |
GB8628930D0 (en) * | 1986-12-03 | 1987-01-07 | Mccoll & Co Ltd K G | Sand blasting |
-
1989
- 1989-01-11 SE SE8900076A patent/SE462796B/en not_active IP Right Cessation
-
1990
- 1990-01-10 WO PCT/SE1990/000015 patent/WO1990008083A1/en not_active Application Discontinuation
- 1990-01-10 EP EP19900901918 patent/EP0453478A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0453478A1 (en) | 1991-10-30 |
SE8900076D0 (en) | 1989-01-11 |
WO1990008083A1 (en) | 1990-07-26 |
SE8900076A (en) | 1989-01-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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