Oil-free SF 6 vacuum-pumping aerating device
The utility model relates to an oil-free SF 6 vacuum-pumping aerating device, comprising a first vacuum pump and a second vacuum pump. An exhaust end of the first vacuum pump is in connection with an inhalation end of the second vacuum pump; an inlet end of a safe exhaust valve is in connection with...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to an oil-free SF 6 vacuum-pumping aerating device, comprising a first vacuum pump and a second vacuum pump. An exhaust end of the first vacuum pump is in connection with an inhalation end of the second vacuum pump; an inlet end of a safe exhaust valve is in connection with a pipeline between the first vacuum pump and the second vacuum pump. The oil-free SF 6 vacuum-pumping aerating device prevents SF6 gas from contacting with oil and from the principle completely eliminates influence to SF6 gas quality caused by oil. |
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