EP3504439A1 - Membranpumpe mit porösem, gewölbtem aluminiumfilter - Google Patents
Membranpumpe mit porösem, gewölbtem aluminiumfilterInfo
- Publication number
- EP3504439A1 EP3504439A1 EP17761041.7A EP17761041A EP3504439A1 EP 3504439 A1 EP3504439 A1 EP 3504439A1 EP 17761041 A EP17761041 A EP 17761041A EP 3504439 A1 EP3504439 A1 EP 3504439A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dust
- diaphragm pump
- pump according
- diaphragm
- half shell
- 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.)
- Granted
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 239000000428 dust Substances 0.000 claims abstract description 52
- 239000012528 membrane Substances 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 5
- 239000011343 solid material Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 2
- 238000010002 mechanical finishing Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 15
- 238000013461 design Methods 0.000 abstract description 2
- 239000011261 inert gas Substances 0.000 abstract description 2
- 230000002441 reversible effect Effects 0.000 abstract description 2
- 239000002817 coal dust Substances 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- -1 for example Inorganic materials 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/053—Pumps having fluid drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/20—Filtering
Definitions
- the invention relates to a diaphragm pump for fluidizing, stringing and conveying dusty products, such as pulverized coal, with the aid of inert gas at pressures up to 7 MPa, which has a porous, curved aluminum lightening element.
- Diaphragm pump is relaxed in a final step after the delivery of the conveyed material and the pump cycle starts from the beginning. Due to this cyclic (discontinuous) mode of operation usually several pump heads are interconnected to ensure a continuous operation. For this purpose, the individual pump cycles are operated out of phase with each other.
- Filter materials which meet the requirements of compressive strength and temperature resistance are, for example, the metallic filtration fabrics, sintered metal and sintered plastic described in DE102012216084. The described robust materials are only available in a flat or plate-like structure and not in the required size or dimension. Mechanical processing into other geometric shapes, such as curved half-shells, is due to the required filter fineness and the mechanical processing. Henden damage or smearing of the porous filter structure is not possible.
- the invention has for its object to provide a diaphragm pump with integrated filter element for supplying turbulence and stringing gas in the pressure vessel of the diaphragm pump fen, which the requirements compressive strength, temperature resistance, sufficient filter fineness, aufwandarme
- the invention makes use of the finding that for the operation of the diaphragm pump a uniformly distributed supply of the fluidizing gas in the lower region of the dust pump is essential.
- the membrane pump according to the invention with its loosening element ensures that any smearing of the material can be avoided by processing to a curved filter element with a 3-dimensional shape and a uniform porosity can be realized.
- the loosening element according to the invention has a constant porosity, which can ensure that the finest dust particles do not penetrate into the loosening surface during the expansion process of the dust chamber, which causes a uniformly distributed supply of fluidizing gas into the dust chamber during the stringing process.
- the invention allows a structural design of the dust chamber whose contour is particularly advantageous adapted to the deflection of the membrane and possibly to the guide rod of the membrane. As a result, a uniform and reversible deformation of the membrane is achieved with a possible low wear.
- the pressure chamber enclosing the dust chamber small dimensions with a minimized wall thickness, which leads to a reduction in manufacturing costs.
- the loosening surface 5 at the lowest point has a circular opening, to which a dust tube 7 is fixed, through which the dust-like conveyed can be conveyed and discharged and thus can not get into the gas space 13.
- the diaphragm pump shown in Figure 1 is one of two pressure-resistant half-shells (1, 12) existing device, the are connected to each other in a gastight manner via a flange connection (2).
- the flange connection has the additional function of securing and clamping the membrane (3) and the loosening surface (5) via a filter flange (4). Due to the spherical geometry can thus be an advantageous and gentle for the filter material deflection of the membrane in the dust space in the form of a paraboloid of revolution. The deflection of the membrane is caused by a force of the hydraulic fluid, as described for example in DE102016201182.
- the invention is furthermore based on the problem of producing a dense phase conveying system described in DE 2005047583 by producing a fluidized bed within the dust chamber.
- a dense phase conveying system described in DE 2005047583 by producing a fluidized bed within the dust chamber.
- the filter material for the loosening surface (5) porous metal, for example, aluminum having a sufficiently small pore size and filter fineness ⁇ 20 ⁇ m is used. This can ensure that the finest dust particles do not penetrate into the loosening surface during the expansion process.
- porous metal liquid metal, for example aluminum, together with granular poured salted into a Haibschalenform.
- Salt for example, has a much higher melting point than metals such as aluminum and does not change into the liquid state of aggregation, but spreads uniformly in the melt. After solidification of the metal, the salt is washed out with the aid of a salt-dissolving liquid and porous and gas-permeable metal is formed.
- An advantage of this method is the possibility to perform a mechanical treatment before leaching of the salt crystals. This excludes smearing of the pores. The required porosity and filter fineness are set by the size of the salt grains.
- the hydraulic half shell (1) has a smaller inner diameter than the inner diameter of the dust half shell (12).
- the curved loosening surface (5) can be fixed.
- the loosening surface (5) can be designed as a half shell with a flange edge in two layers, in the lower region as a porous metal and in the flange region made of solid material.
- the half-shell-shaped casting mold of the loosening surface (5) is widened with additional annular and / or point-shaped supporting elements (8).
- the half-shell-shaped and made of porous metal loosening surface (5) in the lower pressure-resistant and made of solid material half-shell (12) are fitted and fixed.
- a central, in particular annular, support element 8 is arranged, which surrounds the dust tube 7 and optionally the gas pipe 6 concentric therewith.
- a gas space 13 which can be used for the distribution of the loosening and stringing gas.
- a particular embodiment of the invention consists in monitoring and ensuring the membrane leaks.
- the membrane (3) is designed as a double membrane with integrated pressure sensor for leakage monitoring. This makes it possible to ensure a hermetically tight separation between the hydraulic chamber (11) and the dust chamber (10) and to detect damage to the diaphragm in good time. Elaborate repair and cleaning of the entire dust system or hydraulic system are prevented in membrane damage and maintain the tightness of the membrane during the incident.
- the membrane 3 as a double membrane, two rubber-elastic membranes are arranged mechanically supported against each other such that a closed intermediate space is formed between the membranes, which can be monitored by means of a pressure sensor ⁇ (14).
- the intermediate space has a pressure which is lower than the pressure in the hydraulic chamber or the dust chamber.
- the two membranes can thereby be selectively arranged mechanically supported against each other, that between them a layer of balls are arranged.
- the two membranes can be arranged mechanically supported against each other, that between them a coupling liquid is introduced, which is in operative connection with the pressure sensor ⁇ .
- the rubber-elastic membrane may be formed with an elastomer or a solid PTFE mixture.
- one of the two membranes can be given by an elastomer and the other of the two membranes by a massive PTFE mixture.
- the invention is also by a diaphragm pump for
- the pressure-resistant housing of the dust pump consists of two half-shells which are connected to a flange connection and into which a membrane and loosening surface are flanged
- the loosening surface is designed as a half-shell, contains support elements and a gas space between pressure-resistant lower half-shell and loosening surface consists.
- the present invention has been explained in detail for illustrative purposes with reference to specific embodiments. In this case, elements of the individual embodiments can also be combined with each other. The invention is therefore not intended to be limited to individual embodiments, but merely to be limited by the appended claims. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016216012.5A DE102016216012A1 (de) | 2016-08-25 | 2016-08-25 | Membranpumpe mit porösem, gewölbtem Aluminiumfilter |
PCT/EP2017/071089 WO2018036995A1 (de) | 2016-08-25 | 2017-08-22 | Membranpumpe mit porösem, gewölbtem aluminiumfilter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3504439A1 true EP3504439A1 (de) | 2019-07-03 |
EP3504439B1 EP3504439B1 (de) | 2021-02-17 |
Family
ID=59745890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17761041.7A Active EP3504439B1 (de) | 2016-08-25 | 2017-08-22 | Membranpumpe mit porösem, gewölbtem aluminiumfilter |
Country Status (5)
Country | Link |
---|---|
US (1) | US11215174B2 (de) |
EP (1) | EP3504439B1 (de) |
CN (1) | CN109790831B (de) |
DE (1) | DE102016216012A1 (de) |
WO (1) | WO2018036995A1 (de) |
Family Cites Families (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE81606C (de) | ||||
DE568999C (de) | 1933-01-27 | Richard Bertram | Foerderschnecke fuer Staubpumpen | |
DE147188C (de) | ||||
DE427455C (de) | 1925-07-08 | 1926-04-10 | Allg Elek Citaets Ges Fa | Verfahren zum Foerdern von Staubluftgemischen |
DE449676C (de) | 1925-11-29 | 1927-09-19 | Babcock & Wilcox Dampfkessel W | Staubpumpe mit Pressluftfoerderung nach dem Emulsionsverfahren |
DE485635C (de) | 1926-06-08 | 1929-11-02 | Kohlenauswertung G M B H | Staubpumpe mit mehrfacher Lufteinfuehrung |
DE551066C (de) | 1930-04-25 | 1932-05-25 | Paul Griese | Staubpumpe |
DE596565C (de) | 1932-04-29 | 1934-05-08 | Internat Cement Gun Company | Verfahren zum Foerdern einer Staub-Luft-Emulsion |
DE650988C (de) | 1932-05-20 | 1937-10-06 | Fuller Co | Staubpumpe mit den Gutseinlauf durchsetzender und in der Pumpentrommel und beim Gutsauslauf frei tragend angeordneter Foerderschnecke |
DE615779C (de) | 1932-05-20 | 1935-07-12 | Fuller Co | Staubpumpe mit Foerderschnecke und Luftzufuehrung am Schneckenaustritt und verstellbarem Abstand zwischen Lufteinlass und dem Endfluegel der Foerderschnecke |
DE656009C (de) | 1933-08-11 | 1938-01-27 | Fuller Co | Staubpumpe mit Schneckenfoerderung |
DE1008201B (de) | 1953-06-11 | 1957-05-09 | Ludolf Engel Dr Ing | Einschleusvorrichtung fuer Druck- oder Unterdruckbehaelter |
US3138856A (en) | 1961-10-09 | 1964-06-30 | Dow Chemical Co | Method of producing clad porous metal articles |
DE1175653B (de) | 1962-03-28 | 1964-08-13 | Basf Ag | Verfahren und Vorrichtung zum diskontinuier-lichen Dosieren von pulverfoermigen Stoffen |
DE2722931C2 (de) | 1977-05-20 | 1987-04-30 | Krupp Koppers GmbH, 4300 Essen | Feststoffkolbenpumpe und Verfahren zu deren Betrieb zum Fördern von feinkörnigen bis staubförmigen Brennstoffen |
DD147188A3 (de) | 1977-09-19 | 1981-03-25 | Lutz Barchmann | Verfahren und vorrichtung zur druckvergasung staubfoermiger brennstoffe |
DE3035745A1 (de) | 1980-09-22 | 1982-05-13 | Adrian van 2000 Hamburg Hess | Staubpumpe mit kugelrueckschlagklappe |
US4818191A (en) | 1982-03-31 | 1989-04-04 | Neyra Industries, Inc. | Double-acting diaphragm pump system |
DE3909800A1 (de) | 1989-03-24 | 1990-09-27 | Neuhaeuser Gmbh & Co | Membranpumpe zum pneumatischen foerdern von fluidisierten schuettguetern |
JPH0611070Y2 (ja) * | 1989-10-03 | 1994-03-23 | オーツタイヤ株式会社 | 気体脱臭,清浄用フィルター |
JP3133067B2 (ja) | 1991-05-03 | 2001-02-05 | レギプール ポリウレタン・アンラーゲン・テヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング | ダイアフラムポンプ用の、漏れ排出部を備えた多層ダイアフラム |
US5560279A (en) | 1995-03-16 | 1996-10-01 | W. L. Gore & Associates, Inc. | Pre-failure sensing diaphragm |
DE19940498A1 (de) | 1999-08-26 | 2001-03-22 | Knf Neuberger Gmbh | Membranpumpe |
DE10012902B4 (de) | 2000-03-16 | 2004-02-05 | Lewa Herbert Ott Gmbh + Co. | Atmungsfreie Membraneinspannung |
US6447216B1 (en) | 2000-08-17 | 2002-09-10 | Xerox Corporation | Fluid pumping system for particulate material |
WO2005012729A1 (ja) | 2003-08-04 | 2005-02-10 | Nec Corporation | ダイヤフラムポンプおよび該ダイヤフラムポンプを備えた冷却システム |
DE202005021660U1 (de) | 2005-10-04 | 2009-03-05 | Siemens Aktiengesellschaft | Vorrichtung zur geregelten Zufuhr von Brennstaub in einem Flugstromvergaser |
WO2009009189A2 (en) | 2007-04-20 | 2009-01-15 | General Electric Company | Transporting particulate material |
DE202007019632U1 (de) | 2007-11-09 | 2015-01-19 | Erich Bauer | Pulverfördergerät mit Membranpumpe |
DE102008007033A1 (de) | 2008-01-31 | 2009-08-06 | Siemens Aktiengesellschaft | System zur Staubdosierung |
DE102008009679A1 (de) | 2008-02-18 | 2009-08-20 | Siemens Aktiengesellschaft | Staubeintragsystem |
TWI461522B (zh) | 2008-03-05 | 2014-11-21 | Thyssenkrupp Uhde Gmbh | 用於煤的氣化反應器之連續燃料供應系統 |
DE102008052673A1 (de) | 2008-10-22 | 2010-04-29 | Uhde Gmbh | Nachfördersystem in einen Kohlevergasungsreaktor |
DE102008049542C5 (de) | 2008-09-30 | 2016-10-20 | Siemens Aktiengesellschaft | Staubdosiersystem für hohe Drücke durch eine Kombination von Staubpumpe und Schleuse |
DE102009016191B4 (de) | 2009-04-03 | 2013-04-04 | Alstom Technology Ltd. | Verfahren und Anordnung zur Verbesserung des dynamischen Verhaltens eines kohlegefeuerten Kraftwerkes bei primären und/oder sekundären Anforderungen des Elektrizitätsnetz-Betreibers an die Stromabgabe in das Netz |
US9079136B2 (en) | 2009-05-21 | 2015-07-14 | Battelle Memorial Institute | Thin, porous metal sheets and methods for making the same |
US8851406B2 (en) | 2010-04-13 | 2014-10-07 | Aerojet Rocketdyne Of De, Inc. | Pump apparatus including deconsolidator |
DE102011007066A1 (de) | 2011-04-08 | 2012-10-11 | Siemens Aktiengesellschaft | Membran-Staubpumpen-System |
DE102011052432A1 (de) | 2011-04-15 | 2012-10-18 | Reinhausen Plasma Gmbh | Membranpumpe und Verfahren zum Fördern von feinkörnigen Pulvern mit Hilfe einer Membranpumpe |
DE102012216084A1 (de) * | 2012-09-11 | 2014-03-13 | Siemens Aktiengesellschaft | Modifizierter Wirbelboden für den Einsatz in Vergasungsanlagen mit trockener Brennstoffeinspeisung |
DE102014212919A1 (de) | 2014-07-03 | 2016-01-07 | Siemens Aktiengesellschaft | Filterelement für den Einsatz in Vergasungsanlagen mit trockener Brennstoffeinspeisung |
DE102016201182A1 (de) * | 2016-01-27 | 2017-07-27 | Siemens Aktiengesellschaft | Membranpumpe mit Staubansaugung von unten |
DE102016216006A1 (de) * | 2016-08-25 | 2018-03-01 | Siemens Aktiengesellschaft | Doppelmembran für eine Staubpumpe |
-
2016
- 2016-08-25 DE DE102016216012.5A patent/DE102016216012A1/de not_active Withdrawn
-
2017
- 2017-08-22 CN CN201780058413.7A patent/CN109790831B/zh active Active
- 2017-08-22 WO PCT/EP2017/071089 patent/WO2018036995A1/de unknown
- 2017-08-22 EP EP17761041.7A patent/EP3504439B1/de active Active
- 2017-08-22 US US16/327,584 patent/US11215174B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3504439B1 (de) | 2021-02-17 |
US20210293235A1 (en) | 2021-09-23 |
US11215174B2 (en) | 2022-01-04 |
DE102016216012A1 (de) | 2018-03-01 |
CN109790831B (zh) | 2020-08-14 |
WO2018036995A1 (de) | 2018-03-01 |
CN109790831A (zh) | 2019-05-21 |
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