| 主权项 |
1. A fluid treatment system having an increased fluid recovery ratio, comprising:
a fluid drive source; a fluid treatment device receiving fluid from said drive source and producing treated or filtered product fluid; a first valve and conduit network directing fluid flow from said drive source to said fluid treatment device; and a pressurized storage tank downstream of said fluid treatment device, said storage tank having an internal volume, and including:
a first fluid port in fluid communication with said fluid treatment device;an expandable bag or bladder within said internal volume and connected to said first fluid port, said bladder in fluid communication with said fluid treatment device and separating said product fluid from fluid within said internal volume but external said bladder; anda second fluid port in fluid communication with said fluid within said internal volume but external said bladder; anda second valve and conduit network connecting said second fluid port of said storage tank to a delivery port, and to said fluid treatment device, such that when said bladder receives product fluid from said fluid treatment device, said bladder expands and displaces fluid within said internal volume but external said bladder to exit said second fluid port and return to said fluid treatment device for treatment, unless said bladder is empty, wherein said fluid within said internal volume but external said bladder is directed via said second valve conduit network to said delivery port on demand. |
