Valve for Switching Fluids, Extinguishing System, and a Method

Abstract

A sectional valve includes a working valve and a control valve, which controls the working valve. In order to permit a greater flexibility with respect to possible settings and/or use or operation by comparison to known solutions, it is proposed, for example, that the control valve have a control spring (34, 34′), which presses the anchor (5) onto the control valve seat (17), and against which the control coil (26) lifts the anchor (5) from the control valve seat (17), a permanent magnet (29), which in an actuation state is configured to hold the anchor (5) lifted from the control valve seat (17) by the core (35), and a magnet holder (28), in and/or on which the permanent magnet (29) is held in the actuation state, and which permits a distance from the permanent magnet (29), and/or that the control valve is configured to variably position the core (35) along a force generated by the control spring (34, 34′).

1 . The valve ( 100 ) according to  claim 12 , comprising:
 a control valve and   a working valve, which is designed for pilot control by the control valve, with:   a throttle bore ( 6 ) that establishes a first fluid connection between the inlet ( 25 ) of the valve ( 100 ) to be pressurized and a piston chamber ( 21 ) of the working valve, and   a working piston ( 2 ) with a first end face opposite the piston chamber that is larger than a second end face opposite the inlet ( 25 ),   wherein the control valve is configured to open and close a second fluid connection ( 22 ,  23 ) between the piston chamber ( 21 ) and the outlet ( 24 ) of the valve ( 100 ),   wherein the control valve further has:   a control valve seat ( 17 ),   an anchor ( 5 ) that closes the second fluid connection ( 22 ,  23 ) together with the control valve seat ( 17 ) when pressed onto the control valve seat ( 17 ),   a magnetizable core ( 35 ) and   a control coil ( 26 ) configured to exert a magnetic force on the anchor ( 5 ),   such that the control coil ( 26 ) lifts the anchor ( 5 ) from the control valve seat ( 17 ) to an extent that the second fluid connection ( 22 ,  23 ) allows a greater flow than the first fluid connection,   characterized in that   the control valve has   a)—a control spring ( 34 ,  34 ′), which presses the anchor ( 5 ) onto the control valve seat ( 17 ), and against which the control coil ( 26 ) lifts the anchor from the control valve seat ( 17 ),
 a permanent magnet ( 29 ), which in an actuation state is configured to hold the anchor ( 5 ) lifted from the control valve seat ( 17 ) indirectly by the core ( 35 ), and 
 a magnet holder ( 28 ), in and/or on which the permanent magnet ( 29 ) is held in the actuation state, and which allows a removal of the permanent magnet ( 29 ), or 
   b)—a permanent magnet, which presses the anchor ( 5 ) onto the control valve seat ( 17 ) indirectly by the core ( 35 ), and against the retaining effect of which the control coil ( 26 ) lifts the anchor ( 5 ) from the control valve seat ( 17 ),
 a control spring, which in an actuation state is configured to hold the anchor ( 5 ) lifted off of the control valve seat ( 17 ), and 
 a magnet holder ( 28 ), in and/or on which the permanent magnet is held, and which allows a removal of the permanent magnet for a transition into the actuation state, 
   and/or characterized in that   the control valve is configured to variably position the core ( 35 ) along the longitudinal axis by the force generated by the control spring ( 34 ,  34 ′).   
     
     
         2 .- 11 . (canceled) 
     
     
         12 . A valve ( 100 ) for switching fluids with an inlet ( 25 ) and an outlet ( 24 ), wherein a fluid conducting connection between the inlet ( 25 ) and outlet ( 24 ) is closed with the valve ( 100 ) in a resting state,
 wherein the valve ( 100 ) has a fluid flow signal generator with a bushing ( 11 ) and a signal piston ( 13 ) guided in the bushing ( 11 ) with an outlet end face, to which the pressure prevailing in the outlet ( 24 ) of the valve is applied,   wherein the signal piston ( 13 ) is held in a resting position by a signal spring ( 15 ) in an unpressurized state, and
 the signal piston ( 13 ) extends outwardly through the bushing ( 11 ), so that a position of the signal piston ( 13 ) is discernible from outside, and/or 
 the valve ( 100 ) has a detection means for detecting a predetermined deviation of the signal piston ( 13 ) from the resting position. 
   
     
     
         13 . The valve ( 100 ) according to  claim 12 , wherein detection takes place by a closing and/or opening of a mechanical, electrical, magnetic and/or optical contact given at least the predetermined deviation of the signal piston ( 13 ) from the resting position. 
     
     
         14 . The valve ( 100 ) according to  claim 12 , wherein the signal piston ( 13 ) has a seal ( 14 ) relative to the bushing ( 11 ), which is located between the outlet ( 25 ) and signal spring ( 15 ) and/or in an outer wall of the bushing ( 11 ). 
     
     
         15 . The valve ( 100 ) according to  claim 12 , wherein the signal piston ( 13 ), in particular given an unpressurized outlet ( 24 ), can be moved through exposure to an outside force in the direction of the outlet ( 24 ) and/or opposite this direction to check the function. 
     
     
         16 . The valve ( 100 ) according to  claim 12 , wherein signal piston ( 13 ) and signal spring ( 15 ) are dimensioned in such a way that the signal piston ( 13 ) comes to abut against the bushing ( 11 ) given a predetermined pressure in the outlet ( 24 ). 
     
     
         17 . An extinguishing system with an extinguishing agent line and a valve ( 100 ) according to  claim 12 . 
     
     
         18 . (canceled)