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A platform for research: civil engineering, architecture and urbanism
FLUSH VALVE AND PUMP STATION COMPRISING SUCH FLUSH VALVE
In a fist aspect the invention relates to a flush valve comprising an inlet (13), an outlet (14) and a valve arrangement (15), wherein the valve arrangement (15) comprises a first chamber (17), a second chamber (18) that is partly delimited by a diaphragm (21), and a conduit (19) extending between and connecting the first chamber (17) and the second chamber (18), a third chamber (22) that connects the inlet (13) and the outlet (14) of the flush valve (12) and that is partly delimited by said diaphragm (21), the third chamber (22) comprising a valve member (23) configured to control a fluid flow from the inlet (13) to the outlet (14) based on the position of said diaphragm (21), and a control mechanism arranged in said conduit (19). The flush valve is characterized in that the control mechanism comprises a stepper (25) and a plunger (26), the plunger (26) being biased towards an inactive position and being displaced towards an active position by means of the second pressure [P2] in the second chamber (18) when said second pressure [P2] in the second chamber (18) is greater than a threshold value [PT], the plunger (26) being configured to engage the stepper (25) when the plunger (26), wherein the stepper (25), each time the plunger (26) engages the stepper (25), changes position once in a repeated set of positions and wherein the stepper (25) in at least one position enables fluid communication between the first chamber (17) and the second chamber (18) via said conduit (19). In a second aspect the invention also relates to a pump station comprising such a flush valve.
FLUSH VALVE AND PUMP STATION COMPRISING SUCH FLUSH VALVE
In a fist aspect the invention relates to a flush valve comprising an inlet (13), an outlet (14) and a valve arrangement (15), wherein the valve arrangement (15) comprises a first chamber (17), a second chamber (18) that is partly delimited by a diaphragm (21), and a conduit (19) extending between and connecting the first chamber (17) and the second chamber (18), a third chamber (22) that connects the inlet (13) and the outlet (14) of the flush valve (12) and that is partly delimited by said diaphragm (21), the third chamber (22) comprising a valve member (23) configured to control a fluid flow from the inlet (13) to the outlet (14) based on the position of said diaphragm (21), and a control mechanism arranged in said conduit (19). The flush valve is characterized in that the control mechanism comprises a stepper (25) and a plunger (26), the plunger (26) being biased towards an inactive position and being displaced towards an active position by means of the second pressure [P2] in the second chamber (18) when said second pressure [P2] in the second chamber (18) is greater than a threshold value [PT], the plunger (26) being configured to engage the stepper (25) when the plunger (26), wherein the stepper (25), each time the plunger (26) engages the stepper (25), changes position once in a repeated set of positions and wherein the stepper (25) in at least one position enables fluid communication between the first chamber (17) and the second chamber (18) via said conduit (19). In a second aspect the invention also relates to a pump station comprising such a flush valve.
FLUSH VALVE AND PUMP STATION COMPRISING SUCH FLUSH VALVE
SPÜLVENTIL UND PUMPSTATION MIT SOLCH EINEM SPÜLVENTIL
VANNE DE VIDANGE ET STATION DE POMPAGE COMPRENANT UNE TELLE VANNE
BRATTHÄLL JOHAN (author)
2019-12-04
Patent
Electronic Resource
English
FLUSH VALVE AND PUMP STATION COMPRISING SUCH A FLUSH VALVE
| European Patent Office | 2018
FLUSH VALVE AND PUMP STATION COMPRISING SUCH A FLUSH VALVE
| European Patent Office | 2019