DE407692C - Jet pump - Google Patents

Jet pump

Info

Publication number
DE407692C
DE407692C DEA40538D DEA0040538D DE407692C DE 407692 C DE407692 C DE 407692C DE A40538 D DEA40538 D DE A40538D DE A0040538 D DEA0040538 D DE A0040538D DE 407692 C DE407692 C DE 407692C
Authority
DE
Germany
Prior art keywords
nozzle
jet pump
propellant
gas
sucked
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
Application number
DEA40538D
Other languages
German (de)
Inventor
Dipl-Ing Wilhelm Biermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ACTIEN GES DER DILLINGER HUETT
Original Assignee
ACTIEN GES DER DILLINGER HUETT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ACTIEN GES DER DILLINGER HUETT filed Critical ACTIEN GES DER DILLINGER HUETT
Priority to DEA40538D priority Critical patent/DE407692C/en
Application granted granted Critical
Publication of DE407692C publication Critical patent/DE407692C/en
Expired legal-status Critical Current

Links

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
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/463—Arrangements of nozzles with provisions for mixing

Landscapes

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

Description

Strahlpumpe. Strahlpumpen, bei denen das Treibmittel aus einer die Saugdüse umschließenden Ringdüse austritt, haben 'einen verhältnismäßig geringen Wirkungsgrad. Vor allem aber steht die geförderte Gasmenge bei verschiedenen Drucken nicht dauernd in demselben Verhältnis oder angenähert in demselben Verhältnis zur Menge des aufgewendeten Treibmittels. Solche Strahlpumpen werden beispielsweise als Brenner für industrielle Gasfeuerungen verwendet, bei denen die Verbrennungsluft durch das unter Druck stehende, in die Strahlpumpe eingeführte Gas ausgesaugt wird und bei denen es darauf ankommt, daß die Menge der angesaugten Luft bei g'eichbleibender Rauchgasschieberstellung, also bei gleichbleibendem Gegendruck, ungefähr im gleichen Verhältnis wie die Menge des Treibmittels wächst.Jet pump. Jet pumps in which the propellant comes from a die Suction nozzle enclosing ring nozzle emerges, have 'a relatively low Efficiency. Above all, however, the amount of gas delivered is available at different pressures not permanently in the same proportion or approximately in the same proportion to Amount of propellant used. Such jet pumps are for example Used as a burner for industrial gas firing where the combustion air through that under pressure standing gas introduced into the jet pump is sucked out and where it is important that the amount of air sucked in with constant flue gas valve position, i.e. with constant back pressure, approximately in the same proportion as the amount of propellant increases.

Der Gegenstand der Erfindung ist eine Strahlpumpe der genannten Art, die durch Einbau eines Einsatzes in die Saugdüse der Bedingung, bei gleichem Gegendruck immer dasselbe Mischungsverhältnis zwischen Treibmittel und angesaugtem Gas zu erzeugen, sehr nahe kommt.The object of the invention is a jet pump of the type mentioned, the condition by installing an insert in the suction nozzle with the same back pressure always generate the same mixing ratio between propellant and sucked in gas, comes very close.

Die neue Strahlpumpe ist auf -der Zeichnung in einem Längsschnitt dargestellt.The new jet pump is on the drawing in a longitudinal section shown.

d ist der Treibmittelstutzen, b die äußere Ringdüse für das Treibmittel, c die innere Düse für das anzusaugende Gas. Diese innere Düse ist nun nicht wie bisher hohl gelassen, sondern sie ist durch einen eingesetzten mittleren Körper d, der am besten kegelförmig ist, zu einer Ringdüse gemacht. Außerdem aber ist dieser Kegelkörper durch einen zylindrischen Ansatz e bis über die engste Stelle der Mischdüse hinaus verlängert, so daß auch der Mischraum hinter den Düsenmündungen ringförmig ist.d is the propellant nozzle, b the outer ring nozzle for the propellant, c the inner nozzle for the gas to be sucked in. Now this inner nozzle is not like hitherto left hollow, but rather it is through an inserted middle body d, which is best tapered, made into an annular nozzle. But this is also the case Cone body through a cylindrical extension e up to the narrowest point of the mixing nozzle extended so that the mixing space behind the nozzle mouths is also ring-shaped is.

Claims (2)

PATENTANSPRÜCHE: i. Strahlpumpe mit äußerer Ringdüse für das Treibmittel und innerer Düse für das anzusaugende Gas, dadurch gekennzeichnet, daß die innere Düse durch einen mittleren, am besten kegelförmigen Einsatz zu einer Ringdüse gemacht ist. PATENT CLAIMS: i. Jet pump with an outer ring nozzle for the propellant and an inner nozzle for the gas to be sucked in, characterized in that the inner nozzle is made into an annular nozzle by means of a central, preferably conical insert. 2. Strahlpumpe nach Anspruch i, dadurch gekennzeichnet, daß der Einsatzkörper bis über die engste Stelle der Mischdüse hinaus zylindrisch verlängert ist. 2. Jet pump according to claim i, characterized in that the insert body is extended cylindrically beyond the narrowest point of the mixing nozzle.
DEA40538D 1923-08-22 1923-08-22 Jet pump Expired DE407692C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA40538D DE407692C (en) 1923-08-22 1923-08-22 Jet pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA40538D DE407692C (en) 1923-08-22 1923-08-22 Jet pump

Publications (1)

Publication Number Publication Date
DE407692C true DE407692C (en) 1925-01-03

Family

ID=6932022

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA40538D Expired DE407692C (en) 1923-08-22 1923-08-22 Jet pump

Country Status (1)

Country Link
DE (1) DE407692C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960577C (en) * 1953-03-20 1957-03-21 Siemens Ag Liquid emitters as a vacuum pump or compressor
DE19502539A1 (en) * 1995-01-27 1996-08-01 Baelz Gmbh Helmut Steam injector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960577C (en) * 1953-03-20 1957-03-21 Siemens Ag Liquid emitters as a vacuum pump or compressor
DE19502539A1 (en) * 1995-01-27 1996-08-01 Baelz Gmbh Helmut Steam injector

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