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US 12,133,999 B2Granted
Methods and system for filling a suppressant container
AssigneesTyco Building Services Products Limited, Macron Safety Systems (UK) Limited
InventorsTimothy Broughton, Alan Elder, John Walls
Life of this patent
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Abstract
Systems and methods for filling and pressurizing a container with liquid suppressant and nitrogen gas. A pressurized receiving container of nitrogen gas is initially provided at a transformative pressure and liquid suppressant is subsequently added to the pressurized receiving container. The transformative gas pressure provides a sufficient amount of nitrogen to saturate the added liquid suppressant and provide an operative head space pressure within the receiving container without the need for mechanized mixing of the nitrogen and liquid suppressant solution.
Claims19
A method of charging a container of a suppression system without a mechanized mixing process, the method comprising:
- pressurizing the container with a predetermined quantity of nitrogen identified by weight to provide a pressurized container containing nitrogen gas at a transformative pressure for a fill amount of liquid suppressant;
- and
- adding the fill amount of liquid suppressant to the pressurized container from a pressurized source of the liquid suppressant,
- wherein adding the fill amount of the liquid suppressant includes transferring the liquid suppressant from the pressurized source to the pressurized container using a transfer pump simultaneously coupled to the pressurized source and the pressurized container and comprising an inlet coupled to the pressurized source and an outlet coupled to the pressurized container, equalizing a pressure at the inlet and the outlet by opening a shut-off valve coupled to the inlet before operating the transfer pump, and while transferring the liquid suppressant to the pressurized container measuring a weight of the pressurized source until a loss in weight of the pressurized source equals a predetermined weight value,
- wherein the transformative pressure is a pressure at least sufficient to saturate the fill amount of liquid suppressant within the pressurized container and pressurize the fill amount of liquid suppressant to a target pressure within the pressurized container.
2 more elements
A method of charging a container of a suppression system without a mechanized mixing process, the method comprising:
- providing a pressurized container containing nitrogen gas at a transformative pressure for a fill amount of liquid suppressant;
- and
- adding the fill amount of liquid suppressant to the pressurized container from a pressurized source of the liquid suppressant,
- wherein adding the fill amount of liquid suppressant includes transferring the liquid suppressant from the pressurized source to the pressurized container using a transfer pump simultaneously coupled to the pressurized source and the pressurized container and comprising an inlet coupled to the pressurized source and an outlet coupled to the pressurized container, equalizing a pressure at the inlet and the outlet by opening a shut-off valve coupled to the inlet before operating the transfer pump, and measuring a weight of the pressurized source while transferring the liquid suppressant to the pressurized container until a loss in weight of the pressurized source equals a predetermined weight value,
- wherein providing the pressurized container includes determining the transformative pressure of the nitrogen from a calculated quantity of nitrogen identified by weight to saturate the weight of the fill amount of liquid suppressant and achieve a target pressure at an ambient temperature,
- wherein the transformative pressure is a pressure at least sufficient to saturate the fill amount of liquid suppressant within the pressurized container and pressurize the fill amount of liquid suppressant to the target pressure within the pressurized container.
3 more elements
A method of charging a container of a suppression system without a mechanized mixing process, the method comprising:
- pressurizing the container with a predetermined quantity of nitrogen identified by weight to provide a pressurized container containing nitrogen gas at a transformative pressure;
- and
- adding a fill amount of unsaturated liquid suppressant to the pressurized container from a pressurized source of liquid suppressant, wherein the pressurized source has a first weight,
- wherein adding the fill amount of the liquid suppressant includes transferring the liquid suppressant from the pressurized source to the pressurized container using a transfer pump simultaneously coupled to the pressurized source and the pressurized container and comprising an inlet coupled to the pressurized source and an outlet coupled to the pressurized container, equalizing a pressure at the inlet and the outlet by opening a shut-off valve coupled to the inlet before operating the transfer pump, and while transferring the liquid suppressant from the pressurized source to the pressurized container measuring a weight of the pressurized source until the pressurized source has a second weight less than the first weight, wherein a difference in weight between the first weight and the second weight equals a predetermined weight value,
- wherein a first portion of the predetermined weight of nitrogen is sufficient to saturate the fill amount of unsaturated liquid suppressant and a second portion of the predetermined weight of nitrogen is sufficient to pressurize the fill amount of liquid suppressant to a target pressure,
- wherein the transformative pressure is a pressure at least sufficient to saturate the fill amount of liquid suppressant within the pressurized container and pressurize the fill amount of liquid suppressant to the target pressure within the pressurized container.
3 more elements
Dependencies are inferred from the claim text.