Fireproof and fireproof valve and blade thereof

A fireproof valve comprises a frame type valve seat (1) and a plurality of rectangular blades (2) rotatably mounted on the frame type valve seat (1), and each blade (2) comprises a metal plate body (21); one surface of the metal plate body (21) is covered with a first high-temperature-resistant plat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO WEIPING, LI LIANLIAN, GU HAIQI, SIMA XIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A fireproof valve comprises a frame type valve seat (1) and a plurality of rectangular blades (2) rotatably mounted on the frame type valve seat (1), and each blade (2) comprises a metal plate body (21); one surface of the metal plate body (21) is covered with a first high-temperature-resistant plate (22), the other surface of the metal plate body (21) is covered with a second high-temperature-resistant plate (23), and the first high-temperature-resistant plate (22) and the second high-temperature-resistant plate (23) are partially staggered in the width direction of the metal plate body (21), namely, the first high-temperature-resistant plate (22) extends towards one side of the width direction of the metal plate body (21), and the second high-temperature-resistant plate (23) extends towards the other opposite side of the metal plate body (21). The first high-temperature-resistant plate (22) and the second high-temperature-resistant plate (23) are provided with overlapped parts and non-overlapped parts; ther