Negative pressure pipeline interconnection sealing structure

The utility model relates to a negative pressure pipeline interconnection sealing structure which comprises a vacuum pump. One end of the corrugated pipe is connected with a corrugated pipe flange; one end of the pipeline is connected with a guide flange, and a sealing ring is arranged on the guide...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG HONG, HU ZUPEI, FU YILIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a negative pressure pipeline interconnection sealing structure which comprises a vacuum pump. One end of the corrugated pipe is connected with a corrugated pipe flange; one end of the pipeline is connected with a guide flange, and a sealing ring is arranged on the guide flange; under the condition of negative pressure suction provided by the vacuum pump, when the corrugated pipe flange is in butt joint with the guide flange, the corrugated pipe flange is adsorbed to the guide flange to achieve sealing, and the corrugated pipe flange is tightly pressed on the sealing ring. According to the negative pressure pipeline interconnection sealing structure, by means of the characteristic of vacuum suction force, the pipelines of the upper cavity and the lower cavity connected with the vacuum pump can be connected together in series, the length of the pipelines is shortened, the caliber size of the pipelines is increased, the vacuumizing efficiency is improved, and the vacuumizing time is