DE495174C - Stuffing box with water cooling for shafts of hot water pumps u. like - Google Patents

Stuffing box with water cooling for shafts of hot water pumps u. like

Info

Publication number
DE495174C
DE495174C DEM98966D DEM0098966D DE495174C DE 495174 C DE495174 C DE 495174C DE M98966 D DEM98966 D DE M98966D DE M0098966 D DEM0098966 D DE M0098966D DE 495174 C DE495174 C DE 495174C
Authority
DE
Germany
Prior art keywords
stuffing box
shafts
hot water
pumps
cooling
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
DEM98966D
Other languages
German (de)
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.)
MAFFEI SCHWARTZKOPFF WERKE
Original Assignee
MAFFEI SCHWARTZKOPFF WERKE
Publication date
Priority to DEM98966D priority Critical patent/DE495174C/en
Application granted granted Critical
Publication of DE495174C publication Critical patent/DE495174C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/08Sealings
    • F04D29/10Shaft sealings
    • F04D29/106Shaft sealings especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Stopfbüchse mit Wasserkühlung für Wellen von Heißwasserpumpen u. dgl. Der Erfindungsgegenstand gehört zur Klasse der Stopfbüchsen mit Wasserkühlung für Wellen von Heißwasserpumpen, insbesonclere zur Klasse derjenigen Stopfbüchsen, bei welchen die heiße Flüssigkeit, gegen welche die Stopfbüchse abdichten soll, ehe sie zu der Stopfbüchse tritt, .einen zylindrischen Spalt zwischen Welle und Kühlmantel durchläuft. Andererseits ist es bei Schleuderpumpen bekannt, unmittelbar hinter der Stopfbüchse im Innern des Pumpengehäuses ein Schleuderrad anzuordnen, um eine Druckverminderung in der Stopfbüchseherbeizuführen.Stuffing box with water cooling for shafts of hot water pumps and the like. The subject of the invention belongs to the class of stuffing boxes with water cooling for Shafts of hot water pumps, in particular to the class of those stuffing boxes which the hot liquid against which the stuffing box is supposed to seal before it enters the stuffing box, .a cylindrical gap between the shaft and the cooling jacket passes through. On the other hand, it is known in centrifugal pumps, immediately behind the stuffing box inside the pump housing to arrange a centrifugal wheel to a To reduce the pressure in the stuffing box.

Das Wesen der vorliegenden Erfindung besteht darin, daß .unmittelbar hinter der mit einem Kühlmantel versehenen Stopfbüchse im Innern ,des Pumpengehäuses ein Schleuderrad auf der Welle so angeordnet ist, daß es nicht nur in der bekannten Weise eine Druckverminderung in der Stopfbüchse, sondern auch einen schnelleren Wärmeaustausch zwischen Fördermittel und Kühlmantel der Stopfbüchse bewirkt. Durch diese Ausbildungsweise wird neben der wirksamen Druckerniedrigung auf der Innenseite der Stopfbüchse ein wirksamer Wärmeaustausch zwischen Kühlmantel und Fördermittel unter gleichzeitiger Erzielung einer :kurzen Baulänge der Stopfbüchse erreicht.The essence of the present invention is that .immediately behind the stuffing box provided with a cooling jacket inside the pump housing a centrifugal wheel is arranged on the shaft so that it is not only in the known Way a pressure reduction in the stuffing box, but also a faster one Causes heat exchange between the conveying means and the cooling jacket of the stuffing box. By this way of training is in addition to the effective pressure reduction on the inside the stuffing box provides an effective heat exchange between the cooling jacket and the conveying medium while at the same time achieving a: short overall length of the stuffing box.

An Hand der beiliegenden Zeichnung soll die Ausführung einer derartigen Stopfbüchse beschrieben werden, wie sie bei Zentrifugalpumpen, die .heißes Wasser fördern, zur Anwendung kommen kann.Based on the accompanying drawing, the execution of such a Stuffing box are described as they are in centrifugal pumps, the .hot water promote, can be applied.

In der Abbildung ,ist die Druckseite einer Hochdruckzentrifugalpumpe mit der üblichen Entlastungsvorrichtung -dargestellt. Während bei normalen Zentrifugalpumpen ,das durch die Entlastungsvorrichtung tretende Wasser frei abläuft, ist man bei Heißwasserpumpen gezwungen, das heiße Wasser in einen Raum zurückzuführen, in dem mindestens ein Druck herrscht, der dem Dampfdruck des heißen Wassers entspricht. Die Stopfbüchse steht also im Gegensatz zu den Stopfbüchsen normaler Pumpen unter Druck und hoher Temperatur.In the picture, the pressure side is a high pressure centrifugal pump shown with the usual relief device. While with normal centrifugal pumps , the water passing through the relief device runs off freely, one is at Hot water pumps forced to return the hot water to a room in which there is at least a pressure that corresponds to the steam pressure of the hot water. In contrast to the stuffing boxes, the stuffing box is under normal pumps Pressure and high temperature.

E ist die Entlastungsvorrichtung, S eine normale Stopfbüchse, W eine um die Stopfbüchse liegende Wasserkammer. R ist ein auf der Welle sitzendes Schleuderrad. Das aus der Entlastungsvorrichtung tretende Wasser wird durch die Öffnung 0 abgeführt und soll beispielsweise unter einem Druck von 5 Atm. stehen .bei entsprechend hoher Temperatur. Durch das Schleuderrad R erfährt nun der Teil .des Wassers, der -zur Stopfbüchse treten will, eine Druckerniedrigung unter gleichzeitiger starker Abkühlung infolge der Wirkung des Kühlmantels, so daß dann für die Stopfbüchse Verhältnisse gegeben sind, wie sie bei normalen Pumpen bestehen.E is the relief device, S is a normal stuffing box, W is a water chamber around the stuffing box. R is a centrifugal wheel sitting on the shaft. The water emerging from the relief device is drained through opening 0 and should, for example, under a pressure of 5 atm. stand. with correspondingly higher Temperature. The part of the water that -zur Stuffing box wants to step, a pressure reduction with simultaneous strong cooling as a result of the action of the cooling jacket, so that then conditions for the stuffing box are given, as they exist with normal pumps.

Durch geeignete Gestaltung des Schleuderrades R hat man es .in der Hand, den Druck hinter der Stopfbüchse so zu erniedrigen, daß kaltes Wasser von niedrigem Druck (i bis 2 Atm.) zur weiteren Kühlung -in den Raum zwischen der Nabe des Rades R und der Stopfbüchse eingeführt werden kann. Die Einführung von kaltem Wasser ist ferner in ähnlicher Weise wie bei der Wasserkammer von Saugstopfbüchsen möglich.By suitable design of the centrifugal wheel R one has it .in the Hand to lower the pressure behind the stuffing box so that cold water flows off low pressure (1 to 2 atm.) for further cooling -in the space between the hub of the wheel R and the stuffing box can be inserted. The introduction of cold Water is also similar to the water chamber of suction glands possible.

Claims (1)

PATENTANSPRUCH: Stopfbüchse mit Wasserkühlung für Wellen von Heißwasserpumpenu. dgl., dadurch gekennzeichnet, daß unmittelbar hinter der Stopfbüchse im Innern des Pumpengehäuses auf der Welle ein Schleuderrad so angeordnet ist, daß .es sowohl eine Druckverminderung in der Stopfbüchse als auch einen schnelleren Wärmeaustausch zwischen dem Fördermittel und dem Kühlmantel der Stopfbüchse bewirkt.PATENT CLAIM: Stuffing box with water cooling for shafts of hot water pumps etc. Like., characterized in that immediately behind the stuffing box inside the Pump housing on the shaft a centrifugal wheel is arranged so that .es both a pressure reduction in the stuffing box as well as a faster heat exchange causes between the conveyor and the cooling jacket of the stuffing box.
DEM98966D Stuffing box with water cooling for shafts of hot water pumps u. like Expired DE495174C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM98966D DE495174C (en) Stuffing box with water cooling for shafts of hot water pumps u. like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM98966D DE495174C (en) Stuffing box with water cooling for shafts of hot water pumps u. like

Publications (1)

Publication Number Publication Date
DE495174C true DE495174C (en) 1930-04-03

Family

ID=7323941

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM98966D Expired DE495174C (en) Stuffing box with water cooling for shafts of hot water pumps u. like

Country Status (1)

Country Link
DE (1) DE495174C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE860456C (en) * 1950-02-07 1952-12-22 Giesserei G M B H Arrangement for cooling the leakage or sealing water for hot water pumps with a relief device
DE964742C (en) * 1945-07-07 1957-05-29 Joenkoepings Mek Werkstads Akt Centrifugal pump with vertical shaft and a hydraulic device for sealing the shaft
DE1055363B (en) * 1952-12-03 1959-04-16 Paul Bungartz Centrifugal pump with a shaft gap seal that ensures operation and standstill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964742C (en) * 1945-07-07 1957-05-29 Joenkoepings Mek Werkstads Akt Centrifugal pump with vertical shaft and a hydraulic device for sealing the shaft
DE860456C (en) * 1950-02-07 1952-12-22 Giesserei G M B H Arrangement for cooling the leakage or sealing water for hot water pumps with a relief device
DE1055363B (en) * 1952-12-03 1959-04-16 Paul Bungartz Centrifugal pump with a shaft gap seal that ensures operation and standstill

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