EP0819855B1 - Hochdruck-Gebläse - Google Patents
Hochdruck-Gebläse Download PDFInfo
- Publication number
- EP0819855B1 EP0819855B1 EP97401743A EP97401743A EP0819855B1 EP 0819855 B1 EP0819855 B1 EP 0819855B1 EP 97401743 A EP97401743 A EP 97401743A EP 97401743 A EP97401743 A EP 97401743A EP 0819855 B1 EP0819855 B1 EP 0819855B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- high pressure
- pressure fan
- tube
- shaped case
- blades
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/165—Axial entry and discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/301—Pressure
Definitions
- the invention relates to a high-pressure fan to promote a gaseous medium, according to the preamble of claim 1.
- blower is known (DE-A-38 42 697).
- Blower is a high pressure blower like it can be used for example for gas burners.
- blowers should have a steep pressure-volume characteristic, i.e. one The change in the static differential pressure has only a small one Reduced volume flow.
- the well-known high pressure blower shows for most applications has an overly complex structure, i.e. its production is closed consuming.
- the specific performance of the known Blower not sufficient for many uses.
- the technical problem underlying the invention therefore exists in creating a high pressure blower that works with limited Dimensions, which are usually determined by the device in which the blower is used, are predetermined and the use of a Large series engine generates the highest possible pressure and yet is easy to set up and manufacture.
- High pressure blower a device for measuring the volume flow contains.
- Such a high pressure blower produces despite being relatively low Dimensions a high pressure and a large volume flow. It is also with a device for measuring the throughput Mistake.
- the high-pressure blower is arranged in the tubular casing 1, which for example has an inner diameter of 150 mm.
- the high pressure blower mounted in the casing containing the electric motor 1 2, for example a DC motor with a target rotation speed of 5,000 min -1.
- the inflow nozzle 3 is provided with the annular channel 6, which has an annular slot 7 towards the opening and is connected via the opening 8 to the connection A outside the tubular casing 1.
- the space above the inflow nozzle 3 is connected via connection B to the space outside the tubular casing 1.
- Differential pressure values can be measured between ports A and B, which are proportional to the volume flow of the high-pressure blower (quadratic function).
- the impeller is connected to the motor shaft 4. It consists of the flat rear plate 10 provided with a plate-like edge 9, the flat front cover plate 11 and the blades 12 arranged between them, which should be curved backwards, for example.
- the deflection disk 13 is arranged after the impeller. She owns a slightly smaller diameter than the impeller. Between her The circumference and the inner diameter of the tubular shell 1 is a Annular gap 14 narrowing the flow path is formed.
- FIG. 2 shows a high-pressure fan, which is constructed in the same way as the high-pressure fan in FIG. 1.
- the same components are provided with the same reference numerals.
- the electric motor 2 is arranged behind the other parts in the flow direction.
- the proposed high-pressure blowers are particularly suitable, for example, for being assembled with a gas burner.
- FIG. 3 Such a blower is shown in FIG. 3, for example.
- the motor 2 is attached to a closed wall 15 so that an inflow space 18 is present between it and the inflow nozzle 3.
- the air required to form the gas-air mixture becomes the Inflow chamber 18 fed radially, as illustrated by the arrows 19.
- the gas is supplied via the feed pipe A 2, which is connected to the ring channel 6 communicates. It passes through the ring channel 6 the slot 7 into the inlet nozzle 3.
- the slot 7 only extends over part of the circumference of the inlet nozzle 3, for example over 340 degrees.
- the lid 20 On the outflow side of the high pressure blower is a spherical dome-shaped, with a large number of openings Cover 20 provided.
- the lid 20 may be hemispherical Be sieve bottom.
- the inflow nozzle of the High pressure blower on two ring channels As can be seen from Fig. 3, the inflow nozzle of the High pressure blower on two ring channels.
- the upper ring channel 21, which is provided with the connecting piece A 1 is used for acceptance a control pressure.
- the size of the one taken off at the connector A 1 Pressure is proportional to the volume of air delivered.
- the lower ring channel 6, which is provided with the connecting piece A 2, is intended for gas supply.
- Throttle device 17 is on the wall 15 with interposition of a tube 16 provided with an external thread is a conical one Throttle device 17 is provided.
- This throttle device 17 is axially adjustable by twisting so that they are within of a certain area in different positions to the inlet nozzle 3 can be brought.
- the throttle device can for one existing negative pressure in the ring channels within a certain Range of different volume flows or different air volumes can be set. Because there is a correlation between air volume and Burner output, the maximum burner output at a predetermined fan speed and a predetermined differential pressure continuously adjustable between A 1 and B.
- Fig. 5 shows the top view of the underside of the impeller cover plate not present. It is the rear pane 10 with to recognize the backward curved blades 12.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Description
- Fig.1
- den prinzipiellen Aufbau des neuen Hochdruck-Gebläses im Längsschnitt,
- Fig.2
- die Ausgestaltung des neuen Hochdruck-Gebläses mit einer anderen Anordnung des Elektromotors als bei dem Hochdruck-Gebläse gemäß Fig. 1,
- Fig. 3
- die Ausgestaltung des neuen Hochdruck-Gebläses für einen Anwendungsfall,
- Fig. 4
- den vergrößerten Ausschnitt aus Fig. 3 und
- Fig. 5
- die Draufsicht auf die Schaufeln des Gebläserades.
Die vorgeschlagenen Hochdruck-Gebläse sind beispielsweise besonders geeignet, um mit einem Gasbrenner zusammengesetzt zu werden.
Claims (11)
- Hochdruck-Gebläse zur Förderung eines gasförmigen Mediums, bei dem in einer rohrförmigen Hülle ein Gebläserad angeordnet ist, von dem das Medium im wesentlichen axial angesaugt, radial beschleunigt und axial ausgeblasen wird, und bei dem dem Gebläserad eine feststehende Leitvorrichtung nachgeschaltet ist, wobei in der rohrförmigen Hülle (1) folgende Teile angeordnet sind:a) ein an der rohrförmigen Hülle (1) befestigter Elektromotor (2) mit einer Motorwelle,b) eine Einströmdüse (3),c) ein geschlossenes Gebläserad mit einer rückseitigen Scheibe (10) und einer vorderen Deckscheibe (11) mit kleinerem Durchmesser als dem der rückseitigen Scheibe und einer Mehrzahl von zwischen der Scheibe (10) angeordneten Schaufeln (12),
gekennzeichnet durch,d) eine Umlenkscheibe (13), deren Durchmesser kleiner als der der Scheibe (10) ist und welche einen ringförmigen, den Strömungsweg verengenden Spalt (14) an der Innenseite der rohrförmigen Hülle (1) bildet. - Hochdruck-Gebläse nach Anspruch 1, dadurch gekennzeichnet, daß der Elektromotor (2) in Strömungsrichtung vor den Teilen a) bis d) angeordnet ist.
- Hochdruck-Gebläse nach Anspruch 1, dadurch gekennzeichnet, daß der Elektromotor (2) in Strömungsrichtung hinter den Teilen a) bis d) angeordnet ist.
- Hochdruck-Gebläse nach den Ansprüchen 1 bis 3, gekennzeichnet durch folgende Merkmale:a) die Einströmdüse (3) weist im Bereich der kreisförmigen Öffnung (5) einen ringförmigen Kanal (6) auf, welcher einen kreisförmigen, zur Öffnung (5) hinweisenden Ringschlitz (7) besitzt,b) der ringförmige Kanal (6) steht über eine Öffnung (8) mit der Außenseite der rohrförmigen Hülle (1) in Verbindung,c) der Innenraum der rohrförmigen Hülle oberhalb der Einströmdüse (3) steht über eine weitere Öffnung (B) mit der Außenseite der rohrförmigen Hülle in Verbindung.
- Hochdruckgebläse nach den Ansprüchen 1 bis 4,
dadurch gekennzeichnet, daß im Bereich der Öffnung (5) der Einströmdüse (3) eine axial verstellbare, kegelförmige Drosselvorrichtung angeordnet ist. - Hochdruckgebläse nach den Ansprüchen 1 bis 5, daß zwischen einer auf der Abtriebsseite des Motors vorhandenen Wand (15) und der Einströmdüse (3) ein Anströmraum (18) gebildet ist, bei dem in der Wand (15) ein Zuführungsrohr (A 2) vorhanden ist und der Anströmraum (18) Zuströmöffnungen (19) besitzt.
- Hochdruckgebläse nach den Ansprüchen 1 bis 6,
dadurch gekennzeichnet, daß die Schaufeln (12) rückwärts gekrümmt sind. - Hochdruckgebläse nach den Ansprüchen 1 bis 6,
dadurch gekennzeichnet, daß die Schaufeln (12) radial endend ausgebildet sind. - Hochdruckgebläse nach den Ansprüchen 1 bis 6,
dadurch gekennzeichnet, daß die Schaufeln (12) vorwärts gekrümmt ausgebildet sind. - Hochdruck-Gebläse nach einem der vorangegangenen Ansprüche 1 - 9, dadurch gekennzeichnet, daß bei zunehmendem Druck ein Teil des zu fördernden Mediums, welches die Schaufeln des Gebläserades verläßt, wieder in die Schaufeln zurückgeführt und nochmals beschleunigt wird.
- Hochdruck-Gebläse nach einem der vorangegangenen Ansprüche 1 - 10, dadurch gekennzeichnet, daß der Durchmesser der vorderen Deckscheibe (11) kleiner ist als derjenige der Umlenkscheibe (13).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19629220 | 1996-07-19 | ||
DE19629220A DE19629220B4 (de) | 1996-07-19 | 1996-07-19 | Hochdruck-Gebläse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0819855A1 EP0819855A1 (de) | 1998-01-21 |
EP0819855B1 true EP0819855B1 (de) | 2004-11-17 |
Family
ID=7800314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97401743A Expired - Lifetime EP0819855B1 (de) | 1996-07-19 | 1997-07-21 | Hochdruck-Gebläse |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0819855B1 (de) |
DE (2) | DE19629220B4 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19640890B8 (de) * | 1996-07-19 | 2005-12-01 | Motoren Ventilatoren Landshut Gmbh | Hochdruck-Gebläse |
DE50214567D1 (de) * | 2001-03-23 | 2010-09-16 | Gvp Ges Zur Vermarktung Der Po | Verfahren und vorrichtung zur einstellung der luftzahl |
DE10118336B4 (de) * | 2001-04-12 | 2016-03-24 | Robert Bosch Gmbh | Gebläse für eine Gas-Brennwertkesseltherme |
KR100748966B1 (ko) * | 2005-01-25 | 2007-08-13 | 엘지전자 주식회사 | 송풍장치 |
JP6120826B2 (ja) * | 2011-04-18 | 2017-04-26 | レスメド・モーター・テクノロジーズ・インコーポレーテッド | Papシステムブロワ |
PL2700822T3 (pl) * | 2012-08-24 | 2017-06-30 | Zehnder Group International Ag | Obudowa przewietrznika promieniowego z kanałem do pomiaru ciśnienia zintegrowanym z wlotem przewietrznika |
DE102015000629A1 (de) * | 2015-01-22 | 2016-07-28 | Viessmann Werke Gmbh & Co Kg | Turboverdichter |
DE102016118369A1 (de) * | 2016-09-28 | 2018-03-29 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ansaugdüse und Ausblaseinheit eines Ventilators |
CN113187762A (zh) * | 2021-05-07 | 2021-07-30 | 青岛丙田机电科技有限公司 | 一种直流半球式风轮及风机 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE23126E (en) * | 1949-06-21 | Aib compressor | ||
FR879346A (fr) * | 1941-02-17 | 1943-02-19 | Ventilator A G | Ventilateur |
US3059833A (en) * | 1956-10-17 | 1962-10-23 | Remi A Benoit | Fans |
GB849744A (en) * | 1958-01-30 | 1960-09-28 | Blackman Keith Ltd | Improvements in fans |
DE2313269C3 (de) * | 1973-03-16 | 1978-10-12 | Eisenwerke Gaggenau Gmbh, 7560 Gaggenau | Klosettsitz mit in einem rückseitigen hohlen Ansatzstück einbaubarer Fördereinheit |
DE3842697A1 (de) * | 1988-12-19 | 1990-06-21 | Standard Elektrik Lorenz Ag | Hochdruck-geblaese |
DE3843463A1 (de) * | 1988-12-23 | 1990-06-28 | Hans Kohl | Geblaese zum foerdern von gasen |
DE4020236A1 (de) * | 1990-06-26 | 1992-01-02 | Keller Lufttechnik Gmbh & Co Kg | Innerhalb eines luftansaugkanals angeordnete radialventilatoreinheit |
DE9104643U1 (de) * | 1991-04-16 | 1991-10-10 | Keller Lufttechnik GmbH + Co KG, 7312 Kirchheim | Ventilatoreinheit |
DE4141362C2 (de) * | 1991-12-14 | 2002-10-24 | Motoren Ventilatoren Gmbh | Radialgebläse mit Drosselvorrichtung |
DE4213047A1 (de) * | 1992-04-21 | 1993-10-28 | Kuehnle Kopp Kausch Ag | Verdichter mit einer Einrichtung zum Beeinflussen der Hauptströmung im Verdichter |
-
1996
- 1996-07-19 DE DE19629220A patent/DE19629220B4/de not_active Expired - Fee Related
-
1997
- 1997-07-21 EP EP97401743A patent/EP0819855B1/de not_active Expired - Lifetime
- 1997-07-21 DE DE59712081T patent/DE59712081D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19629220B4 (de) | 2005-05-12 |
EP0819855A1 (de) | 1998-01-21 |
DE59712081D1 (de) | 2004-12-23 |
DE19629220A1 (de) | 1998-01-22 |
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