Detection hole device

The utility model relates to a detection hole device which comprises a steel pipe, a first flange arranged on one side of the steel pipe, a second flange arranged on one side of the first flange, a first connecting plate arranged on the first flange and a second connecting plate arranged on the seco...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIU FANGMIN, WANG FUHONG, ZHANG HUAIYIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES HEATING KILNS LIGHTING MECHANICAL ENGINEERING OVENS RETORTS WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a detection hole device which comprises a steel pipe, a first flange arranged on one side of the steel pipe, a second flange arranged on one side of the first flange, a first connecting plate arranged on the first flange and a second connecting plate arranged on the second flange. A first groove is formed in the first flange; a second groove is formed in the second flange; the first connecting plate is clamped in the first groove; the second connecting plate is clamped in the second groove; when the first connecting plate and the second connecting plate are in press fit, a first ventilation groove and a second ventilation groove are formed between the first connecting plate and the second connecting plate. Through holes are formed in the first connecting plate and the second connecting plate; the second ventilation slot is communicated with the through hole; and the first ventilation slots are communicated with the second ventilation slots. The problem that heat of the furnace bod