Drive for fire damper
First Claim
1. A drive apparatus (1) for a fire damper (2), comprising:
- an electric drive (10), which is designed to hold the fire damper (2) in a normal position with a supply of current and to move said fire damper into a safety position when there is no supply of current,a temperature sensor (13) for measuring an air temperature value (T),a gas sensor (14) for measuring a content (G) of combustion gases in the air, and a switch module (15), which is connected to the temperature sensor (13) and the gas sensor (14) and is designed to detect signals representing the measured value T and the measured value G and to interrupt the supply of current when there is a predetermined combination of both the air temperature value (T) and the content (G) of combustion gases in the air.
1 Assignment
0 Petitions
Accused Products
Abstract
A drive apparatus (1) for a fire damper (2) having an electric drive (10), which holds the fire damper in a normal position when power is supplied and moves it into a safety position when no power is supplied. A thermal contact breaker (12) interrupts the power supply to the drive (10) at a melt temperature. The drive apparatus (1) also has a temperature sensor (13) for measuring the air temperature (T), a gas sensor (14) for measuring the content (G) of fumes in the air, and a switch module (15), which interrupts the power supply depending on the values of T and G. In the event of a fire, the fire damper can thus be moved into a safety position not only when the temperature in the region of the thermal contact breaker (12) is high, but already when smoke or gas develops as a result of the fire.
15 Citations
15 Claims
-
1. A drive apparatus (1) for a fire damper (2), comprising:
an electric drive (10), which is designed to hold the fire damper (2) in a normal position with a supply of current and to move said fire damper into a safety position when there is no supply of current, a temperature sensor (13) for measuring an air temperature value (T), a gas sensor (14) for measuring a content (G) of combustion gases in the air, and a switch module (15), which is connected to the temperature sensor (13) and the gas sensor (14) and is designed to detect signals representing the measured value T and the measured value G and to interrupt the supply of current when there is a predetermined combination of both the air temperature value (T) and the content (G) of combustion gases in the air. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
9. A method for operating a fire damper (2) with an electric drive (10), which holds the fire damper (2) in a normal position during a supply of current and moves said fire damper into a safety position when there is no supply of current, comprising:
-
measuring an air temperature value (T), measuring a content (G) of combustion gases in the air, and detecting the measured value T and the measured value G by a switch, wherein the supply of current to the drive (10) is interrupted by the switch (151) when there is a predetermined combination of both the air temperature value (T) and the content (G) of combustion gases in the air. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
Specification