DE1671413B1 - VENTURI WASHERS FOR WET CLEANING OF GASES - Google Patents
VENTURI WASHERS FOR WET CLEANING OF GASESInfo
- Publication number
- DE1671413B1 DE1671413B1 DE19671671413 DE1671413A DE1671413B1 DE 1671413 B1 DE1671413 B1 DE 1671413B1 DE 19671671413 DE19671671413 DE 19671671413 DE 1671413 A DE1671413 A DE 1671413A DE 1671413 B1 DE1671413 B1 DE 1671413B1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- cross
- neck
- rotor
- section
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/10—Venturi scrubbers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/54—Venturi scrubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Separation Of Particles Using Liquids (AREA)
Description
sie sind jedoch vorzugsweise keilförmig ausgebildet. Vorzugsweise hat die Führungsplatte 6 eine Länge von etwa dem 5- bis 7fachen der Breite des Halsteiles B. Ihr Scheitelwinkel kann 6 bis 13° betragen.however, they are preferably wedge-shaped. The guide plate 6 preferably has a length of approximately 5 to 7 times the width of the neck part B. Its apex angle can be 6 to 13 °.
Im Betrieb wird staubaufnehmendes Wasser, das mit Hilfe einer anderen Einrichtung unter Druck gesetzt wird, durch Sprühdüsen 8 eines Behälters 9 in die Halsteile B und Q eingespritzt. Muß eine große Menge an durchströmendem Gas gereinigt werden, kann auch zusätzlich eine Sprüheinrichtung beispielsweise innerhalb des Rotors vorgesehen sein, um die Sprühstrahlen in den gesamten Halsteil einzuspritzen. In den Diffusorteilen C und R vermischen sich das Rohgas und die in die Halsteile B und Q eingespritzten Tröpfchen, so daß der Staub in dem Rohgas durch Berührung, Kollision und Diffusion absorbiert wird. Danach werden in einem nicht gezeigten, hinter dem Venturiwäscher vorgesehenen Umlenkteil für den Gasstrom die Staub enthaltenden Wassertröpfchen von dem Gas getrennt, und das Rohgas ist somit gereinigt. Gleichzeitig nimmt im Diffusorteil die Gasgeschwindigkeit allmählich ab, und der dynamische Druck infolge der hohen Geschwindigkeit des Gases an der engsten Stelle wird effektiv als statischer Druck zurückgewonnen. Zur Veränderung der durchströmenden Gasmenge, die zu behandeln ist, werden die Gasdurchtrittsflächen in den engsten Stellen der Halsteile B und Q des Venturiwäschers entsprechend den durchströmenden Gasmengen variiert. Auf diese Weise kann die Gasgeschwindigkeit an der engsten Stelle konstant gehalten werden, so daß auch der Druckverlust und der Wirkungsgrad der Staubabscheidung konstant gehalten werden.In operation, dust-absorbing water, which is pressurized with the aid of another device, is injected into the neck parts B and Q through spray nozzles 8 of a container 9. If a large amount of gas flowing through has to be cleaned, a spray device can also be provided, for example inside the rotor, in order to inject the spray jets into the entire neck part. In the diffuser parts C and R , the raw gas and the droplets injected into the neck parts B and Q mix, so that the dust in the raw gas is absorbed by contact, collision and diffusion. Thereafter, the water droplets containing dust are separated from the gas in a deflection part, not shown, provided behind the venturi scrubber for the gas flow, and the raw gas is thus cleaned. At the same time, the gas velocity gradually decreases in the diffuser part, and the dynamic pressure due to the high velocity of the gas at the narrowest point is effectively recovered as the static pressure. To change the amount of gas flowing through which is to be treated, the gas passage areas in the narrowest points of the neck parts B and Q of the Venturi scrubber are varied according to the amount of gas flowing through. In this way, the gas velocity can be kept constant at the narrowest point, so that the pressure loss and the efficiency of the dust separation are also kept constant.
Bei diesem Durchströmen des Gases durch den Venturiwäscher bewirkt die Führungsplatte 1 vor dem Rotor 3, daß die Gasgeschwindigkeit kontinuierlich zunimmt, wobei der statische Druck des Gases kontinuierlich abnimmt. Da die Führungsplatte 1 den Rotor zum größten Teil überdeckt, prallt die Gasströmung nicht unter einem größeren Auftreffwinkel auf die Rotorfläche, wie dies bei den bekannten Vorrichtungen der Fall ist. Auf diese Weise bleibt während des ganzen Einschnürens der Gasströmung eine laminare Strömung erhalten, so daß praktisch nichts von der Energie verlorengeht, die der Gasströmung z. B. durch ein Gebläse erteilt wird. Die stromab von dem Rotor 3 vorgesehene Führungsplatte 6 hat den Vorteil, daß sich die Diffusorteile C und R allmählich erweitern, so daß die Geschwindigkeit hinter dem Halsteil nur allmählich abnimmt. Auf diese Weise wird eine Wirbelbildung und ein Ablösen der Wirbel an der Grenzschicht hinter dem Rotor vermieden. Da die Strömung durch die erfindungsgemäße Führungsplatte 6 auch hinter dem Rotor laminar bleibt, kann der dynamische Gasdruck praktisch wieder vollständig als statischer Druck zurückgewonnen werden, was bedeutet, daß durch die Verengung des Venturirohres kein wesentlicher Energieverlust in der Gasströmung auftritt. Auf diese Weise kann durch die erfindungsgemäße Vorrichtung der Druckverlust in dem Venturiwäscher minimal gehalten werden, d. h., der Leistungsverbrauch der gesamten Anlage wird erheblich reduziert, und die Betriebskosten werden verringert. Außerdem kann beim Bau der Anlage das erforderliche Gebläse wesentlich kleiner dimensioniert sein, um den erforderlichen Druck hinter dem Venturiwäscher zu erreichen, was die Baukosten für die Anlage verringert. When the gas flows through the venturi scrubber, the guide plate 1 in front of the rotor 3 causes the gas velocity to increase continuously, the static pressure of the gas continuously decreasing. Since the guide plate 1 largely covers the rotor, the gas flow does not impinge on the rotor surface at a larger angle of incidence, as is the case with the known devices. In this way, a laminar flow is maintained throughout the constriction of the gas flow, so that practically nothing of the energy is lost that the gas flow z. B. is issued by a fan. The guide plate 6 provided downstream of the rotor 3 has the advantage that the diffuser parts C and R gradually widen so that the speed behind the neck part only decreases gradually. In this way, vortex formation and separation of the vortices at the boundary layer behind the rotor is avoided. Since the flow through the guide plate 6 according to the invention also remains laminar behind the rotor, the dynamic gas pressure can almost completely be recovered as static pressure, which means that no significant energy loss occurs in the gas flow due to the narrowing of the Venturi tube. In this way, the device according to the invention can keep the pressure loss in the Venturi scrubber to a minimum, ie the power consumption of the entire system is considerably reduced and the operating costs are reduced. In addition, when the system is being built, the fan required can be made much smaller in order to achieve the required pressure downstream of the venturi scrubber, which reduces the construction costs for the system.
Im folgenden wird die Verwendung des erfindungsgemäßen Venturiwäschers zur Naßreinigung von Gasen bei einer kleinen Anlage zur Rückgewinnung von Abgas aus einem Konverter in unverbranntem Zustand erläutert.In the following the use of the invention Venturi scrubber for wet cleaning of gases in a small recovery plant of exhaust gas from a converter in the unburned state explained.
Zur Reinigung des Abgases, dessen anfallende Menge zwischen Null und 1700 Nm3/Std. schwankte und das eine Temperatur von 40° C hatte, wurde der Innendruck des Gaskühlers auf einem bestimmten Wert gehalten, während die anzusaugende Menge mit HiKe der erfindungsgemäßen Vorrichtung eingestellt wurde. Bei einer günstigen Einstellung des Innendrucks des Gaskühlers wurden durch Messungen die in der folgenden Tabelle angegebenen sehr günstigen Ergebnisse erhalten:For cleaning the exhaust gas, the amount of which is between zero and 1700 Nm 3 / hour. fluctuated and which had a temperature of 40 ° C., the internal pressure of the gas cooler was kept at a certain value while the amount to be sucked in was adjusted with HiKe of the device according to the invention. With a favorable setting of the internal pressure of the gas cooler, the very favorable results given in the following table were obtained through measurements:
Maximale Abgasmenge in
Nm3/Std Maximum exhaust gas quantity in
Nm 3 / h
Mittlerer Druckverlust in
mm Wassersäule Mean pressure drop in
mm water column
Druckverlust in mm Wassersäule bei maximaler
AbgasströmungsmengePressure loss in mm of water column at maximum
Exhaust gas flow rate
Eingespritzte Wassermenge
in 1/Nm3 bei maximaler
AbgasströmungsmengeInjected amount of water
in 1 / Nm 3 at maximum
Exhaust gas flow rate
StaubsammelwirkungsgradDust collection efficiency
in % in %
Eingeblasene Sauerstoffmenge in Nm3/Std Amount of oxygen blown in in Nm 3 / hour
Versuchs-Nr.Trial no.
1250 11751250 1175
10501050
2,4 99,2 4312.4 99.2 431
Nachdem die Anlage mehr als 8 Monate in Betrieb war, ohne daß die entsprechenden Teile gereinigt wurden, war der Verschmutzungsgrad dieser erfindungsgemäßen Teile mit abgelagertem Staub so gering, daß er keinen nachteiligen Einfluß auf die Wirkungsweise dieser Teile hatte.After the system has been in operation for more than 8 months without the corresponding parts being cleaned the degree of soiling of these parts of the present invention with deposited dust was as follows little that it had no adverse effect on the operation of these parts.
Hierzu 1 Blatt Zeichnungen COPY 1 sheet of COPY drawings
Claims (1)
angeordnete Führungsplatten (1, 6), die den Rotor Zur Erläuterung der Erfindung wird im folgenden zum größeren Teil überdecken, vorgesehen sind. ein bevorzugtes Ausführungsbeispiel an Hand derAccording to the invention, this aim is achieved by having the adjusting element, characterized in that the adjusting element has a rotor with any desired cross-sectional shape, that the adjusting element is a rotor with any cross-sectional shape and that in the inflow direction the (3) has any cross-sectional shape and that Gas to divide the gas path and in the downstream direction of the gas to divide the direction of the gas to prevent vortex gas path and in the downstream direction of the gas to form in the gas flow above and below the prevention of vortex formation in the gas neck part arranged guide plates, which cover the rotor flow above and below the neck part 15 for the greater part, are provided,
arranged guide plates (1, 6) which cover the rotor to a greater extent to explain the invention in the following. a preferred embodiment on the basis of
F i g. 1 zeigt einen vertikalen Schnitt eines erfin-Drawing described.
F i g. 1 shows a vertical section of an invented
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5361966 | 1966-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1671413B1 true DE1671413B1 (en) | 1972-03-09 |
Family
ID=12947906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19671671413 Withdrawn DE1671413B1 (en) | 1966-08-15 | 1967-08-14 | VENTURI WASHERS FOR WET CLEANING OF GASES |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3556489A (en) |
| AT (1) | AT279564B (en) |
| DE (1) | DE1671413B1 (en) |
| GB (1) | GB1200641A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT330136B (en) * | 1971-02-01 | 1976-06-10 | Waagner Biro Ag | WASHING DEVICE FOR RAW GAS STREAMS CONTAINED IN DUST OR POLLUTED BY NUDE GAS COMPONENTS |
| US3704867A (en) * | 1971-03-04 | 1972-12-05 | Ford Motor Co | Low silhouette dual flow stage carburetor |
| US4023942A (en) * | 1972-05-30 | 1977-05-17 | Fmc Corporation | Variable throat venturi scrubber |
| SE395614B (en) * | 1972-05-30 | 1977-08-22 | Fmc Corp | VENTURY UNIT FOR GAS CLEANING WITH VARIABLE FLOW AREA |
| US4026682A (en) * | 1973-11-08 | 1977-05-31 | General Resource Corporation | Method of changing the length of a Venturi throat |
| US4002441A (en) * | 1975-03-21 | 1977-01-11 | Willard Lewis Johnson | Wash section for air-cleaning device |
| US4043772A (en) * | 1975-11-07 | 1977-08-23 | Schneible Company | Venturi scrubber with variable area throat |
| US4144041A (en) * | 1977-11-03 | 1979-03-13 | Hou Karl L | Adjustable throat venturi scrubber |
| US4512888A (en) * | 1982-07-01 | 1985-04-23 | Bird Machine Company, Inc. | Apparatus for removal by flotation of solid particles from liquid |
| DE3504167A1 (en) * | 1985-02-07 | 1986-08-07 | L. & C. Steinmüller GmbH, 5270 Gummersbach | METHOD AND DEVICE FOR PURIFYING SMOKE GASES WITH ADDITIVE SUSPENSIONS ACCORDING TO THE PRINCIPLE OF AIRFLOW SPRAYING |
| DE102011105409A1 (en) * | 2011-06-20 | 2012-12-20 | Siemens Vai Metals Technologies Gmbh | venturi scrubbers |
| AR082603A1 (en) * | 2011-08-09 | 2012-12-19 | Lavaque Oscar | A CARBON DIOXIDE SOLUBILIZING DEVICE IN A VARIABLE PRESSURE DRINK |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH201377A (en) * | 1938-02-26 | 1938-11-30 | Karl Koenig | Device for closing lines. |
| CH258092A (en) * | 1946-10-25 | 1948-11-15 | Balsthal Papierfabrik | Control valve. |
| FR975584A (en) * | 1942-02-28 | 1951-03-07 | Krebs & Co Ag | Hydropneumatic reaction method and apparatus |
| GB940930A (en) * | 1961-05-30 | 1963-11-06 | Lodge Cottrell Ltd | Improvements in and relating to gas scrubbers |
| BE669359A (en) * | 1964-09-08 | 1965-12-31 | ||
| DE1300508B (en) * | 1965-09-09 | 1969-08-07 | Metallgesellschaft Ag | Device for changing the neck cross-section of Venturi washers |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1045613A (en) * | 1911-07-29 | 1912-11-26 | Harris C Roth | Carbureter. |
| US1555489A (en) * | 1921-08-17 | 1925-09-29 | Albert H Spencer | Carburetor |
| US2059687A (en) * | 1935-01-29 | 1936-11-03 | Wright Aeronautical Corp | Deicing throttle |
| US2424654A (en) * | 1944-06-03 | 1947-07-29 | Lindberg Eng Co | Fluid mixing device |
| US2472949A (en) * | 1947-10-31 | 1949-06-14 | Pittsburgh Des Moines Company | Flexible nozzle for supersonic wind tunnels |
| US2797904A (en) * | 1953-11-27 | 1957-07-02 | James T Voorheis | Multiple venturi scrubber |
| US2905543A (en) * | 1957-05-29 | 1959-09-22 | Hauck Mfg Co | Proportional mixer |
| US3134223A (en) * | 1961-03-06 | 1964-05-26 | Lockheed Aircraft Corp | Tape shielded nozzle |
| US3284064A (en) * | 1963-03-28 | 1966-11-08 | Babcock & Wilcox Co | Apparatus for recovery of heat and chemicals |
| US3350076A (en) * | 1964-05-15 | 1967-10-31 | Cottrell Res Inc | Gas and liquid contact apparatus |
-
1967
- 1967-08-14 GB GB37245/67A patent/GB1200641A/en not_active Expired
- 1967-08-14 DE DE19671671413 patent/DE1671413B1/en not_active Withdrawn
- 1967-08-14 US US660342A patent/US3556489A/en not_active Expired - Lifetime
- 1967-08-14 AT AT748367A patent/AT279564B/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH201377A (en) * | 1938-02-26 | 1938-11-30 | Karl Koenig | Device for closing lines. |
| FR975584A (en) * | 1942-02-28 | 1951-03-07 | Krebs & Co Ag | Hydropneumatic reaction method and apparatus |
| CH258092A (en) * | 1946-10-25 | 1948-11-15 | Balsthal Papierfabrik | Control valve. |
| GB940930A (en) * | 1961-05-30 | 1963-11-06 | Lodge Cottrell Ltd | Improvements in and relating to gas scrubbers |
| BE669359A (en) * | 1964-09-08 | 1965-12-31 | ||
| DE1300508B (en) * | 1965-09-09 | 1969-08-07 | Metallgesellschaft Ag | Device for changing the neck cross-section of Venturi washers |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1200641A (en) | 1970-07-29 |
| US3556489A (en) | 1971-01-19 |
| AT279564B (en) | 1970-03-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |