PROTECTION DEVICE FOR A BOILER ACCESS POINT

A protection device for a boiler access point comprises a fan (10), a pressure sensor (20) and a check valve (30), wherein the fan (10) is connected, by means of an access point (5), to the surroundings in order to draw in ambient air, the pressure sensor (20) is connected downstream of the fan by m...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIMACHER-LEHNER, Daniela, HANGARTNER, Marc Peter
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES FLUES HEATING LIGHTING MECHANICAL ENGINEERING METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES WEAPONS
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Beschreibung
Zusammenfassung:	A protection device for a boiler access point comprises a fan (10), a pressure sensor (20) and a check valve (30), wherein the fan (10) is connected, by means of an access point (5), to the surroundings in order to draw in ambient air, the pressure sensor (20) is connected downstream of the fan by means of a gas-tight connection (6), and a check valve (30) is connected downstream of the pressure sensor by means of an additional gas-tight connection (7). A control unit connected to the pressure sensor (20) has a data store, in which at least a lower first threshold value and a higher second threshold value for pressure values are stored. The existence of a malfunction can be detected by means of the control unit when a pressure sensor signal measured by the pressure sensor (20) and transferred to the control unit lies below the first threshold value or above the second threshold value.