초록 ▼

A system for providing a chemical to a stream of a fluid. The system includes an elongate member with the chemical therein and moveable through the fluid to provide the chemical to the fluid. Optionally, the elongate member may be unwound from a first reel to a second reel through the stream of flui

A system for providing a chemical to a stream of a fluid. The system includes an elongate member with the chemical therein and moveable through the fluid to provide the chemical to the fluid. Optionally, the elongate member may be unwound from a first reel to a second reel through the stream of fluid to provide the chemical to the fluid.

대표청구항 ▼

What is claimed is: 1. A system to provide a chemical to a fluid, the system comprising: a stream of the fluid having a flow rate; an elongate line constructed from a flexible material and having the chemical impregnated within the flexible material, the elongate line provided in a module mounted s

What is claimed is: 1. A system to provide a chemical to a fluid, the system comprising: a stream of the fluid having a flow rate; an elongate line constructed from a flexible material and having the chemical impregnated within the flexible material, the elongate line provided in a module mounted so that the elongate line is configured to traverse through the fluid stream; at least one supply portion of the flexible material with the chemical therein contacting the fluid stream to provide the chemical to the fluid; and the chemical being transferred from the at least one supply portion of the flexible material to the fluid in order to provide a concentration of the chemical in the fluid downstream from the elongate line. 2. The system of claim 1, wherein the chemical is selected from the group consisting of a metal halide and silver nitrate. 3. The system of claim 2, wherein the metal halide is sodium fluoride. 4. The system of claim 3, wherein the elongate line has an amount of the chemical impregnated within sufficient to form the downstream concentration of the sodium fluoride up to about 1 ppm. 5. The system of claim 1, wherein the elongate line includes an extruded polymer. 6. The system of claim 1, wherein the elongate line includes a nylon strand. 7. The system of claim 1, wherein the elongate line includes an extruded polymer having the chemical added therein prior to extrusion. 8. The system of claim 1, wherein the fluid includes water. 9. The system of claim 8, further comprising a single dwelling unit and wherein the water is supplied to the single dwelling unit. 10. A method of providing a chemical to a fluid, the method comprising: drawing a flexible elongate line with a chemical impregnated within the elongate member through a stream of the fluid at a predetermined rate providing the chemical to the fluid; measuring a fluid parameter; and adjusting the predetermined rate based on the fluid parameter to provide a generally constant concentration of the chemical in the fluid downstream of the flexible elongate line. 11. The method of 10, wherein the fluid parameter is a flow rate. 12. The method of claim 10, wherein the fluid parameter is the concentration of the chemical downstream of the elongate line. 13. The method of claim 10, wherein the chemical is selected from the group consisting of a metal halide and a silver nitrate. 14. The method of claim 10, wherein the chemical is sodium fluoride. 15. The method of claim 10, wherein the constant concentration is generally about 1 ppm. 16. The method of claim 10, wherein the fluid is water. 17. The method of claim 16, wherein the water is supplied to a dwelling unit. 18. A system to provide a chemical to water flowing to a dwelling unit, the system comprising: a dwelling unit; a supply of water flowing to the dwelling unit; an elongate member constructed of a flexible material and having a chemical impregnated within the elongate member, the elongate member operable to traverse through the flow of water; at least one supply portion of the elongate member contacting the water flow to provide the chemical to the water; and the chemical transferable from the at least one supply portion to the water to provide a concentration of the chemical downstream from the flexible elongate member to supply water to the dwelling unit having the chemical therein. 19. The system of claim 18, wherein the chemical is sodium fluoride. 20. The system of claim 18, wherein the elongate member is an extruded polymer line.