Valve closing device and method for providing a valve closing device
First Claim
1. A method for keeping ready a fitting closing device (4), wherein the fitting closing device (4) has an input shaft (5) and an output shaft (6), which is coupled to the input shaft (5), and an electrically operable emergency drive (7, 8) with which the output shaft (6) is drivable outside normal operation, wherein the emergency drive (7, 8) is fed from at least two energy storage units (10, 11, 18) which are separate from one another, the energy storage units (10, 11, 18) each have at least one rechargeable battery (19, 20), and the method comprising operating at least one said rechargeable battery (19, 20) in a trickle charging cycle while operating a further said rechargeable battery (19, 20) in a maintenance charging cycle, and, when one said rechargeable battery (19, 20) is operated in the maintenance charging cycle, electronically blocking operation in the maintenance charging cycle for all further said rechargeable batteries (19, 20) of at least one of the associated energy storage unit (10, 11, 18) or the fitting closing device (4).
1 Assignment
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Accused Products
Abstract
In a valve closing device (4) including an emergency actuator (7, 8), the emergency actuator (7, 8) is energized by at least two independently, redundantly operable energy storage units (10, 11, 18), each of which includes charging electronics (22) that allow rechargeable batteries (19, 20) of the energy storage units (10, 11, 18) to be operated at least in a maintenance charging cycle and in a trickle charging cycle.
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Citations
18 Claims
- 1. A method for keeping ready a fitting closing device (4), wherein the fitting closing device (4) has an input shaft (5) and an output shaft (6), which is coupled to the input shaft (5), and an electrically operable emergency drive (7, 8) with which the output shaft (6) is drivable outside normal operation, wherein the emergency drive (7, 8) is fed from at least two energy storage units (10, 11, 18) which are separate from one another, the energy storage units (10, 11, 18) each have at least one rechargeable battery (19, 20), and the method comprising operating at least one said rechargeable battery (19, 20) in a trickle charging cycle while operating a further said rechargeable battery (19, 20) in a maintenance charging cycle, and, when one said rechargeable battery (19, 20) is operated in the maintenance charging cycle, electronically blocking operation in the maintenance charging cycle for all further said rechargeable batteries (19, 20) of at least one of the associated energy storage unit (10, 11, 18) or the fitting closing device (4).
- 9. A fitting closing device (4) comprising an input shaft (5) and an output shaft (6), which is coupled to the input shaft (5), and an electrically operable emergency drive (7, 8) with which the output shaft (6) is driven outside normal operation, the emergency drive (7, 8) is fed from at least two energy storage units (10, 11, 18) of the fitting closing device (4) which are separate from one another, the energy storage units each have at least one rechargeable battery (19, 20), each said energy storage unit (10, 11, 18) has a charging electronics system (22) in each case, each said charging electronics system (22) is operated at least in a maintenance charging cycle and in a trickle charging cycle, and the charging electronics system (22) of one of said energy storage units (10, 11, 18) is coupled to a charging electronics system (22) of a further one of said energy storage units (10, 11, 18) by at least one of a signal or control connection (49) such that the rechargeable batteries (19, 20) cannot be operated in the maintenance charging cycle in both of the energy storage units (10, 11, 18) simultaneously.
Specification