DE480842C - Device for cooling the stuffing boxes in hot water pumps - Google Patents
Device for cooling the stuffing boxes in hot water pumpsInfo
- Publication number
- DE480842C DE480842C DEA54393D DEA0054393D DE480842C DE 480842 C DE480842 C DE 480842C DE A54393 D DEA54393 D DE A54393D DE A0054393 D DEA0054393 D DE A0054393D DE 480842 C DE480842 C DE 480842C
- Authority
- DE
- Germany
- Prior art keywords
- cooling
- water
- hot water
- stuffing boxes
- pressure
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
- F04D29/108—Shaft sealings especially adapted for liquid pumps the sealing fluid being other than the working liquid or being the working liquid treated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Vorrichtung zum Kühlen der Stopfbüchsen bei Heißwasserpumpen Da bei Betrieb einer Pumpe mit gewöhnlichen Stopfbüchsen mit Heißwasser das aus den Stopfbüchsen austretende Leckwasser Dampf entwickelt, was gewöhnlich Kondenswasser ins Schmieröl bringt und die Lager unzulässig hoch erwärmt, werden Stopfbüchsen bei Heißwasserbetrieb meistens gekühlt. Es ist bekannt, solche Kühlungen so anzuordnen, daß das zu kühlende und abzudichtende Druckwasser, bevor es zur eigentlichen Abdichtungsstelle kommt, über z#on außen gekühlte Kühlflächen streichen muß. Diese Anordnung hat einen wesentlichen Nachteil, indem die für wirksame Wärmeabfuhr erforderliche Kühlfläche sehr viel nützlichen Konstruktionsplatz beansprucht, was meistens zur wesentlichen Vergrößerung der Lagerentfernung führt. Andere bekannte Bauarten wieder führen das Kühlwasser zur unmittelbaren Wellenberührung in einen Zwischenpackungsring. Dabei muß sich das Leckwasser mit dem Kühlwasser vermischen und geht verloren, falls das letztere nicht von gleicher Qualität ist wie das Fördergut.Device for cooling the stuffing boxes in hot water pumps Operation of a pump with ordinary stuffing boxes with hot water from the stuffing boxes escaping leakage water develops steam, which is usually condensed water in the lubricating oil and the bearings are heated to an unacceptably high level, stuffing boxes are used when the water is hot mostly chilled. It is known to arrange such cooling so that the to be cooled and pressurized water to be sealed before it comes to the actual sealing point, must brush over cooling surfaces that are cooled on the outside. This arrangement is essential Disadvantage in that the cooling surface required for effective heat dissipation is very large takes up useful construction space, which usually results in a substantial increase in size the bearing distance leads. Other known designs again carry the cooling water for direct shaft contact in an intermediate packing ring. It must be the leakage water mix with the cooling water and is lost if the latter is not of the same quality as the material being conveyed.
Gemäß der Erfindung wird in die Stopfbüchse auch Kühlwasser für unmittelbare Wellenberührung eingeführt, aber von demselben oder annähernd demselben Druck wie der abzusperrende Innendruck. Dadurch ,wird erreicht, daß praktisch weder Förderwasser austritt, noch rohes Kühlwasser ins Förderwasser gelangen kann. Um den Kühlwasserdruck im verlangten Maße gleich dem Abdichtungsdruck zu halten, kann beispielsweise die Verschiedenheit der Temperaturen zwischen abzudichtendem und Kühlwasser hierfür zu Hilfe genommen werden, indem ein Druckregler thermisch betätigt wird.According to the invention, cooling water for immediate use is also in the stuffing box Wave contact introduced but at the same or approximately the same pressure as the internal pressure to be shut off. As a result, it is achieved that practically neither pumped water escapes, raw cooling water can still get into the conveyed water. To the cooling water pressure To keep the sealing pressure equal to the required extent, for example, the Difference in temperatures between the water to be sealed and the cooling water for this can be used to help by thermally actuating a pressure regulator.
Die Zeichnung stellt eine solche beispielsweise Ausführung der Erfindung im Längsschnitt durch ein Kreiselpumpenende dar.The drawing represents such an exemplary embodiment of the invention in a longitudinal section through one end of a centrifugal pump.
w ist die Pumpenwelle, s die Stopfbüchse, a ein Zwischenraum, dessen Temperatur mittels des Thermostaten b auf den Druckregler c für das Kühlwasser einwirkt. Dieses fließt zuerst durch diesen Druckregler c, darauf in den Raum a` zur Welle w. Ist der Kühlwasserdruck im Raum d größer als der abzudichtende Druck im Raum e, so fließt Kühlwasser über den eingeschalteten Zwischenraum a nach Raum e, wobei der Raum a kalt wird. Im umgekehrten Fall wird Raum a dagegen warm. Mittels des Thermostaten b wird im Raum a eine zwischen den beiden Temperaturen gelegene mittlere Temperatur aufrechterhalten, was seinerseits wieder verlangt, daß Wasser weder nach innen, noch nach außen fließt.w is the pump shaft, s the stuffing box, a a space, whose Temperature acts by means of the thermostat b on the pressure regulator c for the cooling water. This first flows through this pressure regulator c, then into space a 'to the shaft w. Is the cooling water pressure in space d greater than the pressure to be sealed in space e, cooling water flows through the switched-on intermediate space a to space e, where the room a becomes cold. In the opposite case, however, room a becomes warm. Using the Thermostat b becomes a middle one in room a between the two temperatures Maintain temperature, which in turn requires that water neither after inside, still flowing outwards.
Die für die Kühlung erforderliche Kühlwassermenge wird durch Ausfluß aus einer nach der Kühlstelle d eingeschalteten Hilfsdrosselstelle der Blende f sichergestellt. Bei kleineren Kühlleistungen kann aber auch die durch die Packungsringe g abfließende Leckwassermenge für die Wellenkühlung ausreichen.The amount of cooling water required for cooling is provided by outflow from an auxiliary throttle point of the diaphragm f, which is switched on after the cooling point d ensured. In the case of smaller cooling capacities, the packing rings can also be used g draining water leakage is sufficient for shaft cooling.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA54393D DE480842C (en) | Device for cooling the stuffing boxes in hot water pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA54393D DE480842C (en) | Device for cooling the stuffing boxes in hot water pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
DE480842C true DE480842C (en) | 1929-08-09 |
Family
ID=6939449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA54393D Expired DE480842C (en) | Device for cooling the stuffing boxes in hot water pumps |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE480842C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE964743C (en) * | 1948-07-19 | 1957-05-29 | Karl Wernert | Cooled shaft seal for the implementation of the shaft carrying the impeller in a housing made of plastic |
DE3136721A1 (en) * | 1981-09-16 | 1983-03-31 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | METHOD FOR AVOIDING SHAFT INTERVENTIONS IN HORIZONTAL CENTRIFUGAL PUMPS FOR CONVEYING HOT MEDIA AND DEVICES FOR IMPLEMENTING THE METHOD |
-
0
- DE DEA54393D patent/DE480842C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE964743C (en) * | 1948-07-19 | 1957-05-29 | Karl Wernert | Cooled shaft seal for the implementation of the shaft carrying the impeller in a housing made of plastic |
DE3136721A1 (en) * | 1981-09-16 | 1983-03-31 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | METHOD FOR AVOIDING SHAFT INTERVENTIONS IN HORIZONTAL CENTRIFUGAL PUMPS FOR CONVEYING HOT MEDIA AND DEVICES FOR IMPLEMENTING THE METHOD |
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