CH152394A - Device for cooling the high vacuum pump in rectifier systems. - Google Patents
Device for cooling the high vacuum pump in rectifier systems.Info
- Publication number
- CH152394A CH152394A CH152394DA CH152394A CH 152394 A CH152394 A CH 152394A CH 152394D A CH152394D A CH 152394DA CH 152394 A CH152394 A CH 152394A
- Authority
- CH
- Switzerland
- Prior art keywords
- cooling
- vacuum pump
- high vacuum
- rectifier systems
- rectifier
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims description 19
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0061—Details of apparatus for conversion using discharge tubes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
Einrichtung ziu Kiililung der Hochvakuumpumpe bei Gleichrichteranlagen. Die Hochvakuumpumpe bei Grossgleich richteranlagen ist normalerweise dauernd im Betrieb und bedarf deshalb einer ständigen Kühlung, die entweder durch Frischwasser oder durch Umlaufkühlung, unter Verwendung eines Rückkühlers mit Ventilator und Um- wälzpumpe erfolgt.
Beide Anordnungen be dingen aber Komplikationen der Anlage in Form von Apparaten zur Regelung und Kon trolle des .Kühlwassers oder der R;ückkühl- einrichtung. Wird diese Rückkühlung ganz oder teilweise mit der Rückkühlanlage des Gleichrichters kombiniert, so ergibt sich der Nachteil, dass diese Kühlanlage dauernd im Betrieb sein muss, was insbesondere bei An lagen mit intermittierender Belastung uner wünscht ist, - .
Diese Schwierigkeiten fallen alle weg bei Ausbildung der Kühlung der Hochvakuum pumpe als Selbstkühlung in der Weise, dass die Hochvakuumpumpe mit einem mit Kühl flüssigkeit gefüllten Kühlmantel mit einem oder mehreren Kühlkörpern versehen ist, _in welchem die Kühlflüssigkeit durch Konvektion zirkulieren kann.
Die Selbstkühlung als solche ist bekannt und beispielsweise verwendet bei Transfor matoren, wie auch bei Gleichrichteranlagen zur Kühlung des Gleiehricliterzylinders.
Da es sich um Abführung von kleinen Wärmemengen, normalerweise unter 1 KW handelt, ist es ein leichtes, die Kühlfläche so zu bemessen, dass die Üebertemperatar der Hoch vakuumpumpe 10-20 nicht überschreitet, was bei jeder vorkommenden Lufttemperatur ein sicheres Arbeiten der Pumpe gewährleistet.
Die beiliegenden, schematischen Figuren zeigen, zum Teil im Schnitt, Ausführungs beispiele des Erfindungsgegenstandes.
In allen Figuren bezeichnet 1 den zylin drischen Behälter der Hochvakuumpumpe mit dem mit der Kühlflüssigkeit gefüllten Kühl mantel 2.
Gemäss Fig. 1 und 2 ist der Kühlman tel 2 mit hohlen .Kühlrippen 3 versehen, in denen Flüssigkeit des Mantels 2 zirkulieren kann.
In den Fig. 3 und 4 sind getrennte, doppelwandige Kühlkörper 4 an den Kühl mantel 2 angebaut, mit der gleichen Kühl flüssigkeit wie im Mantel -2.
Fig. 5 zeigt eine ähnliche Einrichtung wie Fg. 3 mit nur einem Kühlkörper 4 und Verbindungsleitungen 5 und 6.
Die Kühlkörper 4 sind sogenannte Kamin kühler, die bei den hier in Frage kommenden kleinen Temperaturdifferenzen eine sehr- gute Luftzirkulation gewähren.
Installation for cooling the high vacuum pump in rectifier systems. The high vacuum pump in large rectifier systems is normally in continuous operation and therefore requires constant cooling, either with fresh water or with circulating cooling using a dry cooler with a fan and circulating pump.
Both arrangements, however, cause complications in the system in the form of apparatus for regulating and controlling the cooling water or the re-cooling device. If this recooling is wholly or partially combined with the recooling system of the rectifier, the disadvantage arises that this cooling system has to be continuously in operation, which is undesirable, especially in systems with intermittent loading.
These difficulties all disappear when the cooling of the high vacuum pump is designed as self-cooling in such a way that the high vacuum pump is provided with a cooling jacket filled with cooling liquid with one or more heat sinks in which the cooling liquid can circulate by convection.
The self-cooling as such is known and used, for example, in transformers, as well as in rectifier systems for cooling the Gleiehricliterzylinders.
Since small amounts of heat, normally less than 1 KW, are dissipated, it is easy to dimension the cooling surface in such a way that the excess temperature of the high vacuum pump does not exceed 10-20, which ensures that the pump works safely at any air temperature that occurs.
The accompanying schematic figures show, partly in section, execution examples of the subject of the invention.
In all figures, 1 denotes the cylindrical container of the high vacuum pump with the cooling jacket 2 filled with the cooling liquid.
1 and 2, the Kühlman tel 2 is provided with hollow .Kühlrippen 3, in which liquid of the jacket 2 can circulate.
In Figs. 3 and 4 separate, double-walled heat sink 4 are attached to the cooling jacket 2, with the same cooling liquid as in the jacket -2.
FIG. 5 shows a device similar to FIG. 3 with only one heat sink 4 and connecting lines 5 and 6.
The heat sinks 4 are so-called chimney coolers, which allow very good air circulation with the small temperature differences in question here.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH152394T | 1931-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH152394A true CH152394A (en) | 1932-01-31 |
Family
ID=4407510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH152394D CH152394A (en) | 1931-01-16 | 1931-01-16 | Device for cooling the high vacuum pump in rectifier systems. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH152394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088118A (en) * | 1974-02-05 | 1978-05-09 | Development Finance Corporation Of New Zealand | Heat exchanger |
-
1931
- 1931-01-16 CH CH152394D patent/CH152394A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088118A (en) * | 1974-02-05 | 1978-05-09 | Development Finance Corporation Of New Zealand | Heat exchanger |
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