WO2007120069A1 - Liquid-gas jet device - Google Patents
Liquid-gas jet device Download PDFInfo
- Publication number
- WO2007120069A1 WO2007120069A1 PCT/RU2006/000610 RU2006000610W WO2007120069A1 WO 2007120069 A1 WO2007120069 A1 WO 2007120069A1 RU 2006000610 W RU2006000610 W RU 2006000610W WO 2007120069 A1 WO2007120069 A1 WO 2007120069A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- primary mixing
- liquid
- primary
- mixing chamber
- gas
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/04—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing elastic fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3123—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3123—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements
- B01F25/31233—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements used successively
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/463—Arrangements of nozzles with provisions for mixing
Definitions
- This invention relates to hydraulic and gas dynamic equipment, more specifically, to ejector equipment, and can be used in heat and power industry, oil processing and chemical industries, as well as in other industries dealing with the mixing of liquid and gaseous materials.
- a liquid-gas jet device comprising active and passive jet feeding channels, mixing chambers, a diffuser, a set of nozzles comprising at least one nozzle, at least one primary mixing chamber located in front of and, at least partially, around each of said nozzles, a secondary mixing chamber the input of which is located in front of the outputs of said primary mixing chambers and the output is combined with the input of said diffuser, and a receiver chamber where said set of nozzles, said primary mixing chambers and the output of said secondary mixing chamber are located.
- a liquid-gas jet device comprising at least one nozzle, at least one primary mixing chamber and at least one secondary mixing chamber, wherein the input of said secondary mixing chamber is located in front of the outputs of said primary mixing chambers, and a receiver chamber where said set of nozzles, said primary mixing chambers and the output of said secondary mixing chamber are located, further wherein said primary mixing chamber is partially located around said nozzle and the output of said secondary mixing chamber is combined with said diffiiser.
- the output of said nozzle is spaced from the output of said primary mixing chamber by a distance of not more than 100 output diameters of said nozzle.
- the object of the invention disclosed herein is to optimize the mixing of the ejecting and the ejected jets thus improving the efficiency of the liquid-gas jet device.
- a liquid-gas jet device comprising a set of nozzles comprising at least one nozzle, a secondary mixing chamber, a receiver chamber and a diffiiser, as well as at least two coaxial primary mixing chambers wherein said set of nozzles and said primary and secondary mixing chambers are located in said receiver chamber, and each pair of said primary mixing chambers is spaced by a gap for gas supply.
- the walls of said primary mixing chambers have perforations providing for additional supply of gas to the liquid jet and thus ensuring deep turbulence in the mixture jet.
- said primary mixing chambers are installed coaxially with said nozzle.
- Said set of nozzles may comprise at least two nozzles wherein each nozzle comprises an individual chain of primary mixing chambers.
- Said nozzles can be installed in an arbitrary manner (parallel or not parallel to one another).
- the ratio between the cross- section area of said nozzle and the cross-section area of the nearest to said nozzle primary mixing chamber is 1 to 100, and the ratio between the size of the gap and the diameter of said primary mixing chamber is 0.001 to 1.
- said primary mixing chamber has a cylindrical or a conical shape or a combination thereof.
- the cross-section areas of said primary mixing chamber may be either equal or different.
- said primary mixing chamber according to the invention disclosed herein is divided in multiple chambers (chamber components) installed coaxially with one another.
- Said primary mixing chambers provide for the primary mixing of the liquid and the gas and produce vortex areas and turbulence in the gas-saturated liquid jet thus enabling a more intense separation of the jet beyond said primary mixing chambers and a more efficient trapping of the gas being ejected as compared to one mixing chamber ejectors.
- Turbulence can be enhanced if two or more mixing chambers are installed coaxially and are spaced by a gap for the supply of gas that provides for additional turbulence of the liquid jet and improves the mixing of the liquid and the gas.
- Said primary mixing chamber components may have perforations providing for additional supply of gas to the liquid jet.
- 1 is the set of nozzles
- 2 is the nozzle
- 3 is the first primary mixing chamber component
- 4 is the second primary mixing chamber component
- 5 is the third primary mixing chamber component
- 6 is the secondary mixing chamber
- 7 is the diffuser
- 8 is the receiver chamber
- 9 is the gap between primary mixing chamber components.
- the device according to the invention disclosed herein operates as follows.
- the active liquid jet is supplied from the nozzle 2 of the set of nozzles 1 to the primary mixing chamber 3 where it is preliminarily separated and mixed with the passive gas jet and then supplied to the second primary mixing chamber component 4 where gas is additionally supplied through the gap between primary mixing chamber components 9 to provide for additional jet separation.
- the jet output from the final component of the primary mixing chamber is completely separated and traps the final portion of the passive gas.
- the liquid and gas jets are supplied to the secondary mixing chamber 6 where the jet velocities are equalized and the mixture pressure is increased. From the secondary mixing chamber the jet is supplied to the diffuser 7 where the mixture pressure is further increased.
- the pressure of the natural gas was increased from 0.2 to 0.9 MPa using a gas-liquid ejector comprising one nozzle and a two- component primary mixing chamber.
- the operation of this ejector was compared to that of a similar ejector comprising two primary mixing chambers (closest counterpart) under the same conditions.
- the distance between the primary mixing chamber and the nozzle in the design used herein was 2 mm, and the distance between the two primary mixing chambers was 1 mm.
- the use of two primary mixing chambers increased the ejector efficiency by 4.7%.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
This invention relates to hydraulic and gas dynamic equipment, more specifically, to ejector equipment, and can be used in heat and power industry, oil processing and chemical industries, as well as in other industries dealing with the mixing of liquid and gaseous materials.
Description
Liquid-Gas Jet Device
This invention relates to hydraulic and gas dynamic equipment, more specifically, to ejector equipment, and can be used in heat and power industry, oil processing and chemical industries, as well as in other industries dealing with the mixing of liquid and gaseous materials.
Known is (RU, Patent 2216650 F 04 F 5/02, 2003) a liquid-gas jet device comprising active and passive jet feeding channels, mixing chambers, a diffuser, a set of nozzles comprising at least one nozzle, at least one primary mixing chamber located in front of and, at least partially, around each of said nozzles, a secondary mixing chamber the input of which is located in front of the outputs of said primary mixing chambers and the output is combined with the input of said diffuser, and a receiver chamber where said set of nozzles, said primary mixing chambers and the output of said secondary mixing chamber are located.
Disadvantage of said device is the low efficiency due to the insufficient quality of mixing of said active and passive jets.
Known is (RU, Patent 2205994 F 04 F 5/02, 2003) a liquid-gas jet device comprising at least one nozzle, at least one primary mixing chamber and at least one secondary mixing chamber, wherein the input of said secondary mixing chamber is located in front of the outputs of said primary mixing chambers, and a receiver chamber where said set of nozzles, said primary mixing chambers
and the output of said secondary mixing chamber are located, further wherein said primary mixing chamber is partially located around said nozzle and the output of said secondary mixing chamber is combined with said diffiiser. Basically, the output of said nozzle is spaced from the output of said primary mixing chamber by a distance of not more than 100 output diameters of said nozzle.
Disadvantage of said device is the low efficiency due to the insufficient quality of mixing of said active and passive jets.
Therefore the object of the invention disclosed herein is to optimize the mixing of the ejecting and the ejected jets thus improving the efficiency of the liquid-gas jet device.
The object of the invention disclosed herein can be achieved by a liquid-gas jet device (ejector) design comprising a set of nozzles comprising at least one nozzle, a secondary mixing chamber, a receiver chamber and a diffiiser, as well as at least two coaxial primary mixing chambers wherein said set of nozzles and said primary and secondary mixing chambers are located in said receiver chamber, and each pair of said primary mixing chambers is spaced by a gap for gas supply. In the preferred embodiment of the invention disclosed herein, the walls of said primary mixing chambers have perforations providing for additional supply of gas to the liquid jet and thus ensuring deep turbulence in the mixture jet. Basically, said primary mixing chambers are installed coaxially with said nozzle. Said set of nozzles may comprise at least two nozzles wherein each nozzle comprises an individual chain of primary mixing chambers. Said nozzles can be installed in an arbitrary manner (parallel or not parallel to one another). Basically,
the ratio between the cross- section area of said nozzle and the cross-section area of the nearest to said nozzle primary mixing chamber is 1 to 100, and the ratio between the size of the gap and the diameter of said primary mixing chamber is 0.001 to 1. Preferably, said primary mixing chamber has a cylindrical or a conical shape or a combination thereof. The cross-section areas of said primary mixing chamber may be either equal or different.
According to the studies, the quality of mixing of the active (ejecting) and the passive (ejected) media has a substantial effect on the efficiency of the liquid-gas jet device. Therefore, in order for the mixing of the jets to be improved, said primary mixing chamber according to the invention disclosed herein is divided in multiple chambers (chamber components) installed coaxially with one another.
Said primary mixing chambers provide for the primary mixing of the liquid and the gas and produce vortex areas and turbulence in the gas-saturated liquid jet thus enabling a more intense separation of the jet beyond said primary mixing chambers and a more efficient trapping of the gas being ejected as compared to one mixing chamber ejectors.
Turbulence can be enhanced if two or more mixing chambers are installed coaxially and are spaced by a gap for the supply of gas that provides for additional turbulence of the liquid jet and improves the mixing of the liquid and the gas. Said primary mixing chamber components may have perforations providing for additional supply of gas to the liquid jet.
The basic embodiment of the invention disclosed herein is illustrated below with a figure wherein the following notations are
used: 1 is the set of nozzles, 2 is the nozzle, 3 is the first primary mixing chamber component, 4 is the second primary mixing chamber component, 5 is the third primary mixing chamber component, 6 is the secondary mixing chamber, 7 is the diffuser, 8 is the receiver chamber and 9 is the gap between primary mixing chamber components.
The device according to the invention disclosed herein operates as follows. The active liquid jet is supplied from the nozzle 2 of the set of nozzles 1 to the primary mixing chamber 3 where it is preliminarily separated and mixed with the passive gas jet and then supplied to the second primary mixing chamber component 4 where gas is additionally supplied through the gap between primary mixing chamber components 9 to provide for additional jet separation. The same occurs when the jet is supplied from the second primary mixing chamber component 4 to the third primary mixing chamber component 5. The jet output from the final component of the primary mixing chamber is completely separated and traps the final portion of the passive gas. Then the liquid and gas jets are supplied to the secondary mixing chamber 6 where the jet velocities are equalized and the mixture pressure is increased. From the secondary mixing chamber the jet is supplied to the diffuser 7 where the mixture pressure is further increased.
The pressure of the natural gas was increased from 0.2 to 0.9 MPa using a gas-liquid ejector comprising one nozzle and a two- component primary mixing chamber. The operation of this ejector was compared to that of a similar ejector comprising two primary mixing chambers (closest counterpart) under the same conditions. The distance between the primary mixing chamber and the nozzle
in the design used herein was 2 mm, and the distance between the two primary mixing chambers was 1 mm. The use of two primary mixing chambers increased the ejector efficiency by 4.7%.
Claims
1. Liquid-gas jet device comprising a set of nozzles comprising at least one nozzle, a primary and a secondary mixing chambers, a receiver chamber and a difruser, wherein said set of nozzles and said primary and secondary mixing chambers are located in said receiver chamber, said liquid-gas jet device comprises at least two coaxial primary mixing chambers and each pair of said primary mixing chambers is spaced by a gap for gas supply.
2. Device according to Claim 1, wherein the walls of said primary mixing chambers have perforations providing for additional supply of gas to the liquid jet.
3. Device according to Claim 1, wherein said primary mixing chambers are installed coaxially with said nozzle.
4. Device according to Claim 1, wherein said set of nozzles may comprise at least two nozzles.
5. Device according to Claim 1, wherein the ratio between the cross-section area of said nozzle and the cross-section area of the nearest to said nozzle primary mixing chamber is 1 to 100.
6. Device according to Claim 1, wherein the ratio between the size of the gap and the diameter of said primary mixing chamber is 0.001 to 1.
7. Device according to Claim 1, wherein said primary mixing chamber has a cylindrical or a conical shape or a combination thereof.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2006112106 | 2006-04-13 | ||
| RU2006112106/06A RU2317450C1 (en) | 2006-04-13 | 2006-04-13 | Liquid-gas fluidic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007120069A1 true WO2007120069A1 (en) | 2007-10-25 |
Family
ID=38609759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2006/000610 WO2007120069A1 (en) | 2006-04-13 | 2006-11-16 | Liquid-gas jet device |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2317450C1 (en) |
| WO (1) | WO2007120069A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8999246B2 (en) | 2010-05-25 | 2015-04-07 | Exxonmobil Research And Engineering Company | Fluid injection nozzle for fluid bed reactors |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2472976C2 (en) * | 2011-04-08 | 2013-01-20 | Генрих Семенович Фалькевич | Liquid-gas jet device |
| RU170134U1 (en) * | 2016-01-25 | 2017-04-14 | Дмитрий Николаевич Шаманов | MULTI-INJECT UNIT |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU31773A1 (en) * | 1932-01-20 | 1933-08-31 | Н.Ф. Рыбаев | Injector |
| GB468687A (en) * | 1934-12-08 | 1937-07-06 | Elie Aghnides | Device for intimately mixing air with a liquid flowing under pressure |
| SU69219A1 (en) * | 1946-06-14 | 1946-11-30 | А.Ф. Маурер | Ejector |
| RU2205994C1 (en) * | 2002-07-15 | 2003-06-10 | Фалькевич Генрих Семенович | Liquid-gas device |
| RU2216650C1 (en) * | 2002-10-09 | 2003-11-20 | Фалькевич Генрих Семенович | Liquid-gas jet apparatus |
-
2006
- 2006-04-13 RU RU2006112106/06A patent/RU2317450C1/en not_active IP Right Cessation
- 2006-11-16 WO PCT/RU2006/000610 patent/WO2007120069A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU31773A1 (en) * | 1932-01-20 | 1933-08-31 | Н.Ф. Рыбаев | Injector |
| GB468687A (en) * | 1934-12-08 | 1937-07-06 | Elie Aghnides | Device for intimately mixing air with a liquid flowing under pressure |
| SU69219A1 (en) * | 1946-06-14 | 1946-11-30 | А.Ф. Маурер | Ejector |
| RU2205994C1 (en) * | 2002-07-15 | 2003-06-10 | Фалькевич Генрих Семенович | Liquid-gas device |
| RU2216650C1 (en) * | 2002-10-09 | 2003-11-20 | Фалькевич Генрих Семенович | Liquid-gas jet apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8999246B2 (en) | 2010-05-25 | 2015-04-07 | Exxonmobil Research And Engineering Company | Fluid injection nozzle for fluid bed reactors |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2317450C1 (en) | 2008-02-20 |
| RU2006112106A (en) | 2007-10-20 |
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