DE102008003118A1 - Jet e.g. propulsion jet, pump for liquid medium, has diffuser at which pump is connected with suction pipe of compressor by pressure pipe, when compressor generates high pressure on pressure side, where pump works as pre-compressor - Google Patents

Jet e.g. propulsion jet, pump for liquid medium, has diffuser at which pump is connected with suction pipe of compressor by pressure pipe, when compressor generates high pressure on pressure side, where pump works as pre-compressor Download PDF

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Publication number
DE102008003118A1
DE102008003118A1 DE200810003118 DE102008003118A DE102008003118A1 DE 102008003118 A1 DE102008003118 A1 DE 102008003118A1 DE 200810003118 DE200810003118 DE 200810003118 DE 102008003118 A DE102008003118 A DE 102008003118A DE 102008003118 A1 DE102008003118 A1 DE 102008003118A1
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Germany
Prior art keywords
compressor
jet
pressure
jet pump
pump
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DE200810003118
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German (de)
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Richard Gerhold
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Publication of DE102008003118A1 publication Critical patent/DE102008003118A1/en
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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
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • 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
    • F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The pump (1) has an inlet guiding cone (3) at which the pump is connected with a pressure pipe of a compressor (5) by a bypass (6) when the compressor generates low pressure on a suction side. The low pressure in the cone increases throughput of the compressor. The pump is connected with a suction pipe (12) of the compressor by a pressure pipe at its diffuser (8), when the compressor generates high pressure on a pressure side. The high pressure in the diffuser increases pressure capacity of the compressor, and the pump works as a pre-compressor.

Description

Die Erfindung betrifft eine thermodynamische Maschine der im Oberbegriff des Patentanspruchs 1 angegebenen Gattung.The The invention relates to a thermodynamic machine in the preamble of the patent claim 1 specified genus.

In herkömmlichen Verdichtungsprozessen stellt die Kompressionswärme ein Problem dar, weil sie den Wirkungsgrad des Verdichters mindert.In usual Compression processes, the compression heat is a problem because they reduces the efficiency of the compressor.

Das Entnehmen der Kompressionswärme aus dem Verdichtungsprozess ist oft gleichbedeutend mit deren Verlust, wenn außerhalb des Verdichtungsprozesses keine Nutzungsmöglichkeit für sie besteht.The Remove the heat of compression the compression process is often synonymous with their loss, when outside the compression process is no use for them.

Abhilfe schafft die vorliegende Erfindung mittels einer Strahlpumpe, auf welche die einem Verdichtungsprozess entnommene Kompressionswärme übertragen wird zur Erzeugung eines Druckgefälles, welches den Verdichtungsprozess verbessert.remedy provides the present invention by means of a jet pump which transmit the compression heat taken from a compression process is used to generate a pressure gradient, which is the compaction process improved.

Das den Verdichtungsprozess verbessernde Druckgefälle wird in der Strahlpumpe erzeugt: Kompressionswärme wird von der Druckseite des Verdichters mittels Wärmetauscher übertragen auf den Treibstrahl, bestehend aus Gas oder Dampf, zu welchem im Einlaufkonus der Strahlpumpe ein kalter Schleppstrahl beigemischt wird.The the compression process improving the compression process is in the jet pump generates: compression heat is transmitted from the pressure side of the compressor by means of a heat exchanger on the propulsion jet, consisting of gas or vapor, to which in Inlet cone of the jet pump mixed with a cold jet stream becomes.

Das Problem, die Kompressionswärme nicht einfach nur fortzuschaffen, sondern sie dem Verdichtungsprozess zugute kommen zu lassen, wird gelöst durch die in Patentanspruch 1 aufgeführten Merkmale der erfindungsgemäßen Strahlpumpe:

  • – Erwärmung des Treibstrahls mittels Kompressionswärme,
  • – Beimischung eines kalten Schleppstrahls zum Treibstrahl,
  • – Entlastung des Verdichters a) durch Abfuhr der Kompressionswärme zum Treibstrahl b) durch das in der Strahlpumpe erzeugte Druckgefälle.
The problem of not simply removing the heat of compression but letting it benefit the compression process is solved by the features of the jet pump according to the invention, which are described in patent claim 1:
  • Heating of the propulsion jet by means of compression heat,
  • - admixture of a cold jet stream to the jet,
  • - Relief of the compressor a) by dissipating the heat of compression to the propulsion jet b) by the pressure gradient generated in the jet pump.

Weitere wesentliche vorteilhafte Merkmale dieser Erfindung ergeben sich aus den Unteransprüchen.Further significant advantageous features of this invention will become apparent from the dependent claims.

Neu und nützlich an dieser Erfindung ist, dass erfindungsgemäße thermodynamische Maschinen

  • – den Gesamtwirkungsgrad eines Verdichtungsprozesses deutlich steigern mit kleinem apparativem Aufwand,
  • – billig sind in der Herstellung, ohne bewegte Teile auskommen, lange halten und wartungsfrei sind.
New and useful in this invention is that thermodynamic machines according to the invention
  • - Significantly increase the overall efficiency of a compression process with little equipment,
  • - are inexpensive to manufacture, get along without moving parts, last a long time and are maintenance free.

Vorteilhaft ist auch die kurze Amortisationsdauer erfindungsgemäßer Maschinen von deutlich unter fünf Jahren.Advantageous is also the short payback period of machines according to the invention from well below five Years.

Eine erfindungsgemäße Ausführung einer Strahlpumpe wird nachfolgend anhand eines Ausführungs-Beispiels erläutert, von dem die Zeichnungen 1, 2 und 3 Prinzip-Darstellungen sind.An inventive embodiment of a jet pump is explained below with reference to an embodiment example of which the drawings 1 . 2 and 3 Principle representations are.

In 1 ist grob schematisch im Vertikalschnitt die erfindungsgemäße Strahlpumpe 1 dargestellt, angeordnet neben dem Verdichter 5 und dessen Zubehör.In 1 is roughly schematically in vertical section the jet pump according to the invention 1 represented, arranged next to the compressor 5 and its accessories.

Die Strahlpumpe 1 besteht aus der Treibdüse 2, dem Einlaufkonus 3, der Schleppdüse 4, dem Diffusor 8 und der Treibleitung 9. Die Bauteile der Strahlpumpe 1 bilden ein einheitliches, feststehendes, zusammenhängendes Aggregat.The jet pump 1 consists of the motive nozzle 2 , the inlet cone 3 , the tug nozzle 4 , the diffuser 8th and the treble line 9 , The components of the jet pump 1 form a unitary, fixed, coherent aggregate.

Die Treibleitung 9 der Strahlpumpe 1 ist mit der Druckleitung 10 des Verdichters 5 verbunden mittels des Wärmetauschers 7, welcher Kompressionswärme von der Druckleitung 10 auf die Treibleitung 9 übertragt.The treble line 9 the jet pump 1 is with the pressure line 10 of the compressor 5 connected by means of the heat exchanger 7 , which heat of compression from the pressure line 10 to the treble line 9 transmits.

Die Strahlpumpe 1 ist mittels Bypass 6 an ihrem Einlaufkonus 3 verbunden mit der Druckleitung 10 des Verdichters 5 für den Fall, dass der Verdichter 5 auf seiner Saugseite einen möglichst geringen Druck erzeugen soll und der Unterdruck im Einlaufkonus 3 die Saug-Leistung des Verdichters 5 erhöht.The jet pump 1 is by bypass 6 at its inlet cone 3 connected to the pressure line 10 of the compressor 5 in the event that the compressor 5 on its suction side to produce the lowest possible pressure and the negative pressure in the inlet cone 3 the suction power of the compressor 5 elevated.

In diesem Fall wirkt die Strahlpumpe 1 als Nachverdichter nach dem Verdichter 5 in dessen Druckleitung 10. Der Druck des Diffusors 8 wird in diesem Fall nicht in die Saugleitung 12 des Verdichters 5 geleitet.In this case, the jet pump works 1 as a post-compressor after the compressor 5 in the pressure line 10 , The pressure of the diffuser 8th will not be in the suction line in this case 12 of the compressor 5 directed.

Die Wirkung der Strahlpumpe 1 kann in diesem Fall noch gesteigert werden durch Eindüsung von Kondensat-Spray, z. B. Wasser, im Einlaufkonus 3 mittels Spraydüse 13, um den Druck im Einlaufkonus 3 zusätzlich zu senken durch Abkühlung von Treib- und Schleppstrahl mittels Wärme-Kapazität des Kondensat-Sprays und darüber hinaus möglichst auch mittels Verdampfungsenthalpie verdampfenden Kondensat-Sprays zu senken.The effect of the jet pump 1 can be increased in this case by injection of condensate spray, z. As water, in the inlet cone 3 by means of a spray nozzle 13 to the pressure in the inlet cone 3 in addition to lower by cooling of propulsion and drag jet by means of heat capacity of the condensate spray and beyond possibly also by evaporation enthalpy evaporating condensate sprays to lower.

Wie 2 zeigt, ist die Strahlpumpe 1 mittels Druckrohr 11 an ihrem Diffusor 8 verbunden mit der Saugleitung 12 des Verdichters 5 für den Fall, dass der Verdichter 5 auf seiner Druckseite einen möglichst hohen Druck erzeugen soll und der Überdruck im Diffusor 8 die Druck-Leistung des Verdichters 5 erhöht.As 2 shows is the jet pump 1 by means of pressure tube 11 at her diffuser 8th connected to the suction line 12 of the compressor 5 in the event that the compressor 5 on its pressure side to produce the highest possible pressure and the pressure in the diffuser 8th the pressure capacity of the compressor 5 elevated.

In diesem Fall wirkt die Strahlpumpe 1 als Vorverdichter vor dem Verdichter 5 in dessen Saugleitung 12. Der Unterdruck im Einlaufkonus 3 wird in diesem Fall nicht in die Druckleitung 10 des Verdichters 5 geleitet.In this case, the jet pump works 1 as pre-compressor before the compressor 5 in the suction line 12 , The negative pressure in the inlet cone 3 will not be in the pressure line in this case 10 of the compaction ters 5 directed.

11

11
Strahlpumpejet pump
22
Treibdüsepropelling nozzle
33
Einlaufkonusintake cone
44
Schleppdüsetrailer-type
55
Verdichtercompressor
66
Bypassbypass
77
Wärmetauscherheat exchangers
88th
Diffuserdiffuser
99
Treibleitungdrive line
1010
Druckleitungpressure line

22

1111
Druckrohrpressure pipe
1212
Saugleitungsuction
1313
Spraydüse (1)Spray nozzle ( 1 )

Claims (3)

Strahlpumpe für Verdichtungsprozesse, dadurch gekennzeichnet, dass 1 diese Strahlpumpe (1) eine Treibdüse (2), einen Einlaufkonus (3), eine Schleppdüse (4), einen Diffusor (8) und eine Treibleitung (9) aufweist, 2 die o. g. Bauteile der Strahlpumpe (1) zu einem einheitlichen, zusammenhängenden, feststehenden Aggregat verbunden sind, 3 diese Strahlpumpe (1) Gas oder Dampf als heißen Treibstrahl ansaugt durch ihre Treibdüse (2), als kalten Schleppstrahl ansaugt durch ihre Schleppdüse (4) und das Gemisch aus Treib- und Schleppstrahls wieder ausstößt durch ihren Diffusor (8), in welchem der Druck des Gemischs erhöht wird, 4 dieser Strahlpumpe (1) von der Druckleitung (10) des Verdichters (5) per Wärmetauscher (7) Kompressionswärme zugeleitet wird, so dass der Treibstrahl in der Treibleitung (9) mittels Kompressionswärme erwärmt wird, 5 die Druckleitung (11) des Verdichters (5) gekühlt wird durch Abfuhr der Kompressionswärme zum Treibstrahl der Strahlpumpe (1) und der Verdichter (5) auf diese Weise entlastet wird, 6 diese Strahlpumpe (1) in zweifacher Hinsicht als Energiewandler arbeitet, 6.1 indem sie zunächst die thermische Energie des Treibstrahls umwandelt in ein Druckgefälle zwischen Treibrohr (9) und Einlaufkonus (3) durch Drucksenkung im Einlaufkonus (3) mittels dortiger Beimischung des kalten Schleppstrahls zum warmen Treibstrahl und dieses Druckgefälle bei Bedarf zusätzlich verstärkt durch Beimischung von Kondensat-Spray im Einlaufkonus (3) mittels Spraydüse (13), jeweils begleitet von Beschleunigung des Treibstrahls in der Treibdüse (2) unter Zunahme der kinetischen Energie des Treibstrahls, 6.2 indem sie dann die kinetische Energie, welche der Treibstrahl in den Einlaufkonus (3) einbringt, umwandelt in Druck mittels des Diffusors (8), um das Gemisch aus Treib- und Schleppstrahl aus der Strahlpumpe (1) zu entfernen, 7 diese Strahlpumpe (1) mittels Bypass (6) an ihrem Einlaufkonus (3) verbunden ist mit der Druckleitung (10) des Verdichters (5) für den Fall, dass der Verdichter (5) auf seiner Saugseite einen möglichst geringen Druck erzeugen soll und der Unterdruck im Einlaufkonus (3) die Saug-Leistung des Verdichters (5) erhöht, damit die Strahlpumpe (1) als Nachverdichter wirkt nach dem Verdichter (5) in dessen Druckleitung (10). 8 diese Strahlpumpe (1) mittels Druckrohr (11) an ihrem Diffusor (8) verbunden ist mit der Saugleitung (12) des Verdichters (5) für den Fall, dass der Verdichter (5) auf seiner Druckseite einen möglichst hohen Druck erzeugen soll und der Überdruck im Diffusor (8) die Druck-Leistung des Verdichters (5) erhöht, damit die Strahlpumpe (1) als Vorverdichter wirkt vor dem Verdichter (5) in dessen Saugleitung (12). Jet pump for compression processes, characterized in that 1 this jet pump ( 1 ) a motive nozzle ( 2 ), an inlet cone ( 3 ), a tug nozzle ( 4 ), a diffuser ( 8th ) and a leased line ( 9 ), 2 the above-mentioned components of the jet pump ( 1 ) are connected to a single, continuous, fixed aggregate, 3 this jet pump ( 1 ) Draws gas or steam as a hot propellant jet through its motive nozzle ( 2 ), as a cold tow jet sucks through her tug ( 4 ) and the mixture of propulsion and trailing jet ejects again through its diffuser ( 8th ), in which the pressure of the mixture is increased, 4 this jet pump ( 1 ) from the pressure line ( 10 ) of the compressor ( 5 ) by heat exchanger ( 7 ) Compression heat is supplied, so that the propulsion jet in the treble line ( 9 ) is heated by means of compression heat, 5 the pressure line ( 11 ) of the compressor ( 5 ) is cooled by dissipating the heat of compression to the propulsion jet of the jet pump ( 1 ) and the compressor ( 5 ) is relieved in this way, 6 this jet pump ( 1 ) works in two ways as an energy converter, 6.1 by first converting the thermal energy of the propellant jet into a pressure gradient between the propellant tube ( 9 ) and inlet cone ( 3 ) by lowering the pressure in the inlet cone ( 3 ) by means of local admixture of the cold jet stream to the warm propellant jet and this pressure drop additionally reinforced if necessary by admixing condensate spray in the inlet cone ( 3 ) by means of a spray nozzle ( 13 ), each accompanied by acceleration of the motive jet in the motive nozzle ( 2 ) with increasing kinetic energy of the propulsion jet, 6.2 then by the kinetic energy, which the propulsion jet into the inlet cone ( 3 ) converts into pressure by means of the diffuser ( 8th ) to the mixture of propulsion and trailing jet from the jet pump ( 1 ), 7 this jet pump ( 1 ) by means of bypass ( 6 ) at its inlet cone ( 3 ) is connected to the pressure line ( 10 ) of the compressor ( 5 ) in the event that the compressor ( 5 ) on its suction side to produce the lowest possible pressure and the negative pressure in the inlet cone ( 3 ) the suction power of the compressor ( 5 ), so that the jet pump ( 1 ) acts as a booster after the compressor ( 5 ) in its pressure line ( 10 ). 8 this jet pump ( 1 ) by means of pressure tube ( 11 ) on its diffuser ( 8th ) is connected to the suction line ( 12 ) of the compressor ( 5 ) in the event that the compressor ( 5 ) on its pressure side to generate the highest possible pressure and the pressure in the diffuser ( 8th ) the pressure capacity of the compressor ( 5 ), so that the jet pump ( 1 ) as a pre-compressor acts in front of the compressor ( 5 ) in its suction line ( 12 ). Strahlpumpe für Verdichtungsprozesse nach Anspruch 1, dadurch gekennzeichnet, dass 1 diese Strahlpumpe (1) als Treib- und Schleppstrahl flüssige Medien verwendet. Jet pump for compression processes according to claim 1, characterized in that 1 this jet pump ( 1 ) used as propellant and tow jet liquid media. Strahlpumpe für Verdichtungsprozesse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass 1 diese Strahlpumpe (1) zur Erwärmung des Treibstrahls Wärmequellen nutzt, die von der Kompressionswärme des Verdichters (5) verschieden sind, z. B. Abwärme industrieller Prozesse, Solarthermie, Geothermie, etc.Jet pump for compression processes according to claim 1 or 2, characterized in that 1 this jet pump ( 1 ) uses to heat the propulsion jet heat sources, which depends on the compression heat of the compressor ( 5 ) are different, for. B. waste heat of industrial processes, solar thermal, geothermal, etc.
DE200810003118 2008-01-02 2008-01-02 Jet e.g. propulsion jet, pump for liquid medium, has diffuser at which pump is connected with suction pipe of compressor by pressure pipe, when compressor generates high pressure on pressure side, where pump works as pre-compressor Withdrawn DE102008003118A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200810003118 DE102008003118A1 (en) 2008-01-02 2008-01-02 Jet e.g. propulsion jet, pump for liquid medium, has diffuser at which pump is connected with suction pipe of compressor by pressure pipe, when compressor generates high pressure on pressure side, where pump works as pre-compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810003118 DE102008003118A1 (en) 2008-01-02 2008-01-02 Jet e.g. propulsion jet, pump for liquid medium, has diffuser at which pump is connected with suction pipe of compressor by pressure pipe, when compressor generates high pressure on pressure side, where pump works as pre-compressor

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DE102008003118A1 true DE102008003118A1 (en) 2009-07-09

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DE200810003118 Withdrawn DE102008003118A1 (en) 2008-01-02 2008-01-02 Jet e.g. propulsion jet, pump for liquid medium, has diffuser at which pump is connected with suction pipe of compressor by pressure pipe, when compressor generates high pressure on pressure side, where pump works as pre-compressor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777252A (en) * 2011-03-25 2012-11-14 摩尔动力(北京)技术股份有限公司 High-pressure gas source compression system
EP2570656A1 (en) 2011-09-19 2013-03-20 Nordex Energy GmbH Wind energy assembly rotor blade with a thick profile trailing edge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777252A (en) * 2011-03-25 2012-11-14 摩尔动力(北京)技术股份有限公司 High-pressure gas source compression system
EP2570656A1 (en) 2011-09-19 2013-03-20 Nordex Energy GmbH Wind energy assembly rotor blade with a thick profile trailing edge

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