EP3390818A1 - Membranpumpe mit staubansaugung von unten - Google Patents
Membranpumpe mit staubansaugung von untenInfo
- Publication number
- EP3390818A1 EP3390818A1 EP16822973.0A EP16822973A EP3390818A1 EP 3390818 A1 EP3390818 A1 EP 3390818A1 EP 16822973 A EP16822973 A EP 16822973A EP 3390818 A1 EP3390818 A1 EP 3390818A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dust
- pressure
- diaphragm pump
- hydraulic
- dust chamber
- 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
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
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- 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
- 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
- F04B43/06—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
- 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
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
Definitions
- the invention relates to a diaphragm pump for the pneumatic high-pressure delivery of 1 to 10 MPa fluidized dusts and a method for operating such a diaphragm pump.
- screw conveyors are used in practice with leich ⁇ ter bulk material compression and subsequent gas injection for the pneumatic bulk material, s.
- Pneumatic diaphragm pumps are used, whereby only clotting ⁇ ge pressures are possible DE 3909800 AI.
- the invention is based on the problem, a pump head for the pneumatic high-pressure delivery of fluidized
- a diaphragm pump for pneumatic high-pressure delivery of fluidized dusts with the features of claim 1 and a method for operating such a diaphragm pump having the features of claim 8.
- the filling takes place by pneumatic suction, the bulk material being held in a loosened, flowable state over the entire pumping process and dust compaction being deliberately avoided. In this case, a highly compact and therefore economical construction is achieved.
- the pneumatic suction has several decisive advantages over known dust pump systems:
- the cross section of the suction line 17 and thus the size of the inlet valve 8 and the connection to the pump head is much smaller compared to a gravity-driven filling, whereby the pump head can be designed correspondingly smaller.
- the filling can take place from below into the dust chamber.
- This has the advantage that the construction of the pump head is simplified in the region of the diaphragm and in the hydraulic area, since no dust feed-through from above is required, which would otherwise be the case when filled by gravity.
- it is possible by this arrangement to constructively realize a very large loosening surface 4, which is necessary for the avoidance of dust compaction and short cycle times.
- the pressure booster shown in Figure 3 and thus the separation of the hydraulic system in a primary hydraulic 15 - between pressure booster and hydraulic unit - and a secondary hydraulic 16 - between diaphragm 3 and pressure booster 13 - offer the following advantages:
- the pressure of the hydraulic unit can be selected independently of the process pressure, whereby cost-effective standard hydraulic units can be used instead of custom-made. Since the pressure of the hydraulic power pack (20-30 MPa) is generally much higher than the required process pressure in the dust system (1-10 MPa), the volume flows are in the hydraulic power unit and thus the cost of the hydraulic unit significantly lower than if the hydraulic unit to the process pressure of the dust system are designed.
- the pressure transmission ratio (primary pressure / secondary pressure) is thus usually at about 2-30.
- a further advantage of the entire method is that the high-pressure gas requirement is further reduced compared with the system described in DE102011007066A1, since on the one hand the dead volume still to be removed after discharge can be made even smaller due to the smaller pipe cross-sections and on the other hand the previously supplied during discharge Covering gas is used for pneumatic conveying.
- the membrane is mechanically guided by one or more pistons but also guide rods 10, whereby unwanted deformations of the membrane can be avoided.
- the piston or the guide rod 10 On the position of the piston or the guide rod 10 relative to the housing 9, a position measurement of the membrane 3 is given.
- FIG. 2 shows the essential sequence steps of the pump cycle ⁇ and FIG. 3 shows the integration of a plurality of pump heads into a dust pump system.
- Methods are suitable for fine-grained bulk materials or dusts, which can be loosened and fluidized by addition of gas, such as coal dust, and aims in particular at the supply of pressurized pulverized coal pulverizers with dry coal dust feed.
- gas such as coal dust
- the process pressures are on the order of 1 to 10 MPa. In principle, however, the method can also be used for all other processes where fluidizable dusts are to be pumped dry to high pressure.
- FIG. 2 shows the pump cycle on the basis of four process steps A) to D).
- step A) the hydraulic space liquid is withdrawn, whereby the membrane is pulled up and negative pressure is generated in the dust chamber.
- dust from the hopper bunker 11 is sucked. It is assumed that the dust in the supply bunker is in a fluidized state due to the addition of gas.
- a negative pressure in the dust chamber 1 is generated, whereby the promotion is supported.
- step B) by closing the inlet fitting 8 and gas addition via the gas ports 5, the dust chamber is covered to the pressure by the pressure of the consumer 20 plus the pneumatic delivery pressure loss between the pump head 14 and consumer (circa 0.1 to 1 MPa) is given.
- step C the outlet fitting 7 is opened for discharging and the dust is conveyed out via the gas connections 5 with the addition of gas.
- the volume of the dust chamber is reduced by means of the diaphragm 3 by adding hydraulic fluid via the hydraulic connection 6 into the hydraulic space.
- step D the structurally unavoidable residual volume of the dust chamber is relaxed and the pump cycle begins with step A from the front.
- the pressure in the dust chamber 1 is approximately 0.01 to 0.08 MPa below the pressure in the storage tank 11 (delivery differential pressure).
- the negative pressure in the dust chamber 1 is generated by applying negative pressure via the gas connection 5. This is during the pneumatic conveying of dust in the dust chamber on the evacuation of the dust chamber generated by a vacuum pump, the delivery differential pressure.
- the negative pressure applied via the gas connection (5) equals the amount according to the delivery differential pressure or is the same as the delivery differential pressure.
- a single pump head 14 operates batchwise (discontinuous), as shown in FIG. 3, a plurality of pump heads are interconnected to form a dust pump system, wherein a continuous dust flow can be achieved.
- at least 2 pump heads are arranged.
- any number of pump heads can be interconnected.
- a plurality of n pump heads are arranged, they can be operated in phase-shifted relation to each other by 2n / n of the pump cycle ⁇ .
- the hydraulic unit can be dimensioned smaller for a given throughput rate than would be the case with discontinuous operation. In this embodiment, the effects on the pressure regime of the consumer 20 are reduced.
- An entrainment gasifier is supplied with coal dust at 100 t / h at 5 MPa gasification pressure.
- the pressure loss between the dust pump and the carburettor is 1 MPa, which means that the delivery pressure is 6 MPa.
- the cycle time of a pump head is 20 s, which results in a required volume of the dust chamber of 0.15 m 3 and the intake volume flow of 270 m 3 / h.
- the hydraulic unit operates at an operating pressure of 30 MPa and with a volume flow of 54 m 3 / h. Since further gas is added during stringing and discharging, the pressure delivery volume flow corresponds to 300 m 3 / h.
- the fittings namely the outlet valve 7 and the inlet valve 8, are given in a wear-resistant design.
- the covering or relaxation of the dust space 1 with gas takes place over a large area, gas-permeable Auflock ceremoniessflä- surface 4, which is tight for the dust-like bulk material.
- a large area, gas-permeable loosening surface 4 is integrated at the bottom of the dust chamber 1, through which pass the inlets and outlets of the dust to be conveyed.
- the loosening surface in relation to the inner surface of the dust chamber is chosen as far as possible (at least 30% of the inner surface of the dust chamber), resulting in lower gas velocities in the bulk material and a compression of the bulk material is avoided.
- the pressure in the dust chamber about 0.1 to 1 MPa above the pressure of the receiving container but also dosing 20th
- the hydraulic system is divided into a primary and secondary hydraulics, wherein the primary hydraulic system is connected to the diaphragm 3 and is driven by the secondary hydraulic system via a pressure booster.
- the pressure ratio (primary pressure / secondary pressure) may be about 2 to 30.
- the primary and secondary hydraulics; can be operated with different hydraulic fluids.
- the pressure booster can be designed as a pressure booster piston.
- the pressure booster can be made recoverable by a return spring, wherein the return spring can be designed as a mechanical spring or as a pneumatic gas spring.
- At least two pump heads are combined to form a system, the pressure conveying lines 18 are brought together 19, which allows an uninterrupted bulk material promotion.
- a suction conveyor line 17 starts from the supply bunker 11 and branches off onto a plurality of pump heads.
- receivers eg entrained flow gasifier, pulverized coal burner
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 |
|---|---|---|---|
| DE102016201182.0A DE102016201182A1 (de) | 2016-01-27 | 2016-01-27 | Membranpumpe mit Staubansaugung von unten |
| PCT/EP2016/081838 WO2017129327A1 (de) | 2016-01-27 | 2016-12-20 | Membranpumpe mit staubansaugung von unten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3390818A1 true EP3390818A1 (de) | 2018-10-24 |
| EP3390818B1 EP3390818B1 (de) | 2020-05-20 |
Family
ID=57755273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16822973.0A Active EP3390818B1 (de) | 2016-01-27 | 2016-12-20 | Membranpumpe mit staubansaugung von unten |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10914299B2 (de) |
| EP (1) | EP3390818B1 (de) |
| CN (1) | CN108603498B (de) |
| DE (1) | DE102016201182A1 (de) |
| WO (1) | WO2017129327A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016201182A1 (de) | 2016-01-27 | 2017-07-27 | Siemens Aktiengesellschaft | Membranpumpe mit Staubansaugung von unten |
| DE102016216016A1 (de) | 2016-08-25 | 2018-03-15 | Siemens Aktiengesellschaft | Herstellung eines porösen Aluminiumfilters für eine Membranpumpe |
| DE102016216006A1 (de) | 2016-08-25 | 2018-03-01 | Siemens Aktiengesellschaft | Doppelmembran für eine Staubpumpe |
| DE102016216012A1 (de) | 2016-08-25 | 2018-03-01 | Siemens Aktiengesellschaft | Membranpumpe mit porösem, gewölbtem Aluminiumfilter |
| JP7278548B2 (ja) * | 2020-03-05 | 2023-05-22 | 新東工業株式会社 | ガス測定器 |
Family Cites Families (53)
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| US885A (en) | 1838-08-16 | Machine for crimping leather for boots | ||
| DE568999C (de) | 1933-01-27 | Richard Bertram | Foerderschnecke fuer Staubpumpen | |
| 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 |
| 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 |
| 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 |
| 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 |
| CH466134A (de) * | 1966-01-27 | 1968-11-30 | Leipzig Inst Foerdertech | Verfahren und Vorrichtung zum pneumatischen Fördern von staubförmigem und körnigem Gut |
| DD81606A1 (de) | 1970-03-11 | 1971-04-20 | Ernst Schlender | Staubpumpe |
| 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 |
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| 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 |
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| 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 |
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| DE102011052432A1 (de) * | 2011-04-15 | 2012-10-18 | Reinhausen Plasma Gmbh | Membranpumpe und Verfahren zum Fördern von feinkörnigen Pulvern mit Hilfe einer Membranpumpe |
| US9429146B2 (en) * | 2012-04-25 | 2016-08-30 | John J. Fong | Pressure intensifier |
| DE102012216084A1 (de) | 2012-09-11 | 2014-03-13 | Siemens Aktiengesellschaft | Modifizierter Wirbelboden für den Einsatz in Vergasungsanlagen mit trockener Brennstoffeinspeisung |
| CN203835686U (zh) * | 2014-03-13 | 2014-09-17 | 上海绩优机电设备有限公司 | 一种粉尘泵 |
| 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 |
-
2016
- 2016-01-27 DE DE102016201182.0A patent/DE102016201182A1/de not_active Withdrawn
- 2016-12-20 CN CN201680080520.5A patent/CN108603498B/zh active Active
- 2016-12-20 US US16/072,531 patent/US10914299B2/en active Active
- 2016-12-20 WO PCT/EP2016/081838 patent/WO2017129327A1/de not_active Ceased
- 2016-12-20 EP EP16822973.0A patent/EP3390818B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016201182A1 (de) | 2017-07-27 |
| WO2017129327A1 (de) | 2017-08-03 |
| CN108603498A (zh) | 2018-09-28 |
| EP3390818B1 (de) | 2020-05-20 |
| US20190063419A1 (en) | 2019-02-28 |
| US10914299B2 (en) | 2021-02-09 |
| CN108603498B (zh) | 2020-05-22 |
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