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AssigneeEltech Systems Corporation
InventorsRichard J. Kawolics, Philip J. Zivich, Bonnie I. Nelson
Estimating the term…
A feeder device for controlled dissolution of a solid treating agent in a liquid of variable flow rate is designed such that the concentration of treating agent in the effluent liquid can be substantially constant, irrespective of the actual flow rate of the liquid. Further, the value of this concentration may be adjusted to varying levels and adapted to meet specific needs and requirements of the particular liquid system in which this feeder device may be employed. The constancy of concentration of the agent is obtained by the provision of a proportional weir, positioned in connection with a dissolution chamber, useful for maintaining a liquid volume in this dissolution chamber which can be linearly proportional to the flow rate of the liquid therethrough. In this liquid volume, dammed up by the weir, the solid treating agent, generally a substance containing hypochlorite, sulfite, sulphate or permanganate, can be present at least partly as a soluble solid. An amount of the agent not yet solubilized, proportional to the depth of the liquid, is contacted by and then dissolved in the liquid. Thus, the desired proportionality between this amount or the dissolution rate of the treating agent and the flow rate of the liquid is established.
A feeder device for controlled addition of a treating agent to a flowing liquid of variable flow rate, wherein the device is adapted for the outflow of the liquid from the feeder device by gravity, the feeder comprising:
A method of adding solid treating agent to a flowing liquid of varying flow rate, comprising:
In a feeder assembly for controlled addition of a treating agent to a flowing liquid of variable flow rate, wherein said assembly has a housing element for temporarily confining a flowing liquid, which housing element includes liquid inlet means, liquid outlet means, a dissolution chamber containing holding means for solid treating agent and said assembly includes at least one weir, the improvement in said assembly which comprises a liquid inlet zone having a floor, within said housing element, which floor is at a first level for said assembly and said liquid inlet zone, said dissolution chamber having a floor at a second level, with said second level dissolution chamber floor being above said assembly floor, and including a raised surface means between floors providing a flow baffle, and with said at least one weir including a weir positioned between said dissolution chamber and said outlet means, which weir is a proportional weir.
In a feeder assembly for controlled addition of a treating agent to a flowing liquid of variable flow rate, wherein said assemby has a housing element for temporarily confining a flowing liquid, which housing element includes liquid inlet means, liquid outlet means, a dissolution chamber containing holding means for solid treating agent and said assembly includes at least one weir, the improvement in said assembly which comprises a liquid inlet zone having a floor within said housing element which floor is at a first level for said assembly and said liquid inlet zone, said dissolution chamber having a floor at a second level, a bypass chamber within said housing element between said liquid inlet zone and said liquid outlet means and having a floor at said second level, said bypass chamber floor being above said assemby floor and with said assemby including a raised surface means between floors providing a flow baffle.
In a feeder assembly for controlled addition of a treating agent to a flowing liquid of variable flow rate, wherein said assembly has a housing element for temporarily confining a flowing liquid, which housing element includes liquid inlet means, liquid outlet means, a dissolutin chamber containing holding means for solid treating agent and said assembly includes at least one weir, the improvement in said assembly which comprises a liquid inlet zone within said housing element, a dissolution chamber within said housing element between said inlet means and outlet means, said at least one weir incuding a proportional weir positioned adjacent said dissolution chamber a with there being as said liquid inlet means a perforate, elongated liquid inlet element extending into said liquid inlet zone, and with there being a raised surface means flow baffle extending between said inlet zone and said dissolution chamber.
In a feeder assembly for controlled addition of a treating agent to a flowing liquid of variable flow rate, wherein said assembly has a housing element for temporarily confining a flowing liquid, which housing element includes liquid inlet means, liquid outlet means, a dissolution chamber containing holding means for solid treating agent, the improvement in said assembly which comprisies a liquid inlet zone having a floor within said housing element, which floor is at a first level for said assembly and said liquid inlet zone, a dissolution chamber with a floor at a second level, with said dissolution chamber floor being above said assembly floor, a raised surface means flow baffle between said floors and with the ratio of the distance across the inlet zone to the height of the raised surface means between the floor levels being at least 2:1.
Dependencies are inferred from the claim text.