Abstract:
L'invention concerne un dispositif de dosage (D) par dissolution d'un réactif dans un écoulement de liquide, remarquable en ce qu'il comprend plusieurs parties : - une base (200) fixe regroupant ladite enceinte et une entrée de liquide, des moyens d'amenée du liquide au contact du galet de réactif (G) et des moyens de sortie de liquide, - une ou plusieurs cartouches (300) formant un volume indépendant détachable regroupant ledit magasin de réactif, des moyens de formation d'au moins un jet de liquide dirigé sensiblement radialement vers le galet (G) à dissoudre et des moyens de support du galet (G), ladite cartouche (300) venant s'associer à ladite base (200) préformée d'au moins une zone d'accueil de ladite cartouche (300) à des fins de dissolution du réactif.
Abstract:
A method of dispensing a first solid product (150) and a second solid product (160) with a solid product dispenser (100) includes placing the first solid product in a product housing (103) of the dispenser and placing the second solid product in the product housing on top of the first solid product, the first and second solid products being different products. A portion of the first solid product is dispensed during each cycle of the dispenser until the first solid product has been partially depleted to a size small enough to allow the second solid product to also be dispensed, then a portion of the first solid product and a portion of the second solid product are dispensed during each cycle of the dispenser until the first solid product has been completely depleted, and then a portion of the second solid product is dispensed during each cycle of the dispenser.
Abstract:
A dispenser (10) uses first and second flow controls (70, 73). The flow controls maintain first and second flow ranges independent of diluent pressure within a pressure range, wherein the use solution's concentration is maintained over the pressure range. A third flow control (75) may also be utilized in a third diluent passageway for maintaining a third flow range independent of the diluent pressure within the pressure range. A bypass valve assembly (41) is operatively connected to the third incoming diluent passageway. The bypass valve has a temperature control valve. The temperature control valve having a bypass passageway, wherein additional diluent is added to the use solution, thereby controlling the use solution's concentration.
Abstract:
The present invention relates to a chemical feeder that includes a container (11) having an open container end (20) that is attached to the second surface (38) of a lid (32), and a housing (50) having an upper portion that is attached to the first surface (35) of the lid. The housing includes a perforated support plate (77) and a nozzle (92) having a distributor head (95) that extends up through a first support plate opening (86) and a first lid opening (41). The distributor head includes at least one distributor head aperture (101) that resides above second surface (35) of the lid, and which distributes a feed liquid laterally into the container chamber (23) where it contacts a solid chemical material (47) and forms a treated liquid, which is removed from the chemical feed through a housing outlet (110). Methods of forming a treated liquid are also provided.
Abstract:
An extraction system for distributing a test product (20) in an extraction fluid, the system including a flow cell (2) and a pump (16). The flow cell has walls defining an internal passageway (4) having an extraction region (10) for holding the test product and also an upstream end (12) and a downstream end (14) between which the extraction region extends. The internal cross-sectional area of the upstream end is larger than the internal cross-sectional area of the downstream end the and extraction region tapers from the upstream end to the downstream end. The pump has an inlet in fluid communication with the downstream end and an outlet in fluid communication with the upstream end. The pump re-circulates extraction fluid from the downstream end back to the upstream end so as to progressively erode the test product and distribute the test product in the extraction fluid.
Abstract:
A tablet holder including a plurality of perforations that allow diffusion of an enclosed tablet into a surrounding liquid through the perforations. The holder includes a retainer portion and an extension portion that engages selectively with the retainer portion and extends therefrom. In some embodiments, the extension portion extends parallel to a plane formed by a diffusion surface in the retainer portion.
Abstract:
A solid product dispenser includes a housing and a product holder. The housing includes a concentrated solution outlet, a diluent outlet, and an outlet tube in which concentrated solution from the concentrated solution outlet and diluent from the diluent outlet are mixed to form a use solution. Proximate the housing and the product holder is an overflow outlet from which a vacuum breaker is at least 3.50 inches (0,0762m).
Abstract:
A dispenser (10) uses first and second flow controls (70, 73). The flow controls maintain first and second flow ranges independent of diluent pressure within a pressure range, wherein the use solution's concentration is maintained over the pressure range. A third flow control (75) may also be utilized in a third diluent passageway for maintaining a third flow range independent of the diluent pressure within the pressure range. A bypass valve assembly (41) is operatively connected to the third incoming diluent passageway. The bypass valve has a temperature control valve. The temperature control valve having a bypass passageway, wherein additional diluent is added to the use solution, thereby controlling the use solution's concentration.
Abstract:
A chemical feeder that produces a solution of a chemical treating agent, e.g., calcium hypochlorite, is described. The chemical feeder comprises a housing (22) having a base (36), side wall (20) extending upwardly from the base, and a closed upper end (28), all of which define a cavity (2). An elongated substantially vertical hollow container (10) is centrally located within the cavity. The bottom of the side wall (12) of the container is adjacent to the base, and contains a plurality of perforations 14 in the lower portion of the side wall, which is spaced from the inside side wall of the housing. At least one hollow canister (40) having a plurality of perforations (47, 49) in its base and the lower portion of its side wall is interposed, e.g., slidably received, within the container. Conduits for delivering liquid (32) in which the chemical treating agent is soluble to a chamber (5) below the perforations in the canister and for removing a liquid stream (30) containing the chemical treating agent from the feeder are also provided.
Abstract:
A chemical feeder having a collection reservoir (4) and an erosion reservoir (45) located within and spaced from the wall of the collection reservoir (4). An elongated cylinder (20) is supported on the collection reservoir (4) and the lower end of the cylinder (20) is located in the collection reservoir (4). The collection reservoir (4) has a water discharge outlet and the erosion reservoir (45) has a water inlet with a valve to control the flow rate of water into the erosion reservoir (45). A canister (30) containing solid chemical sanitizing elements (T) is supported in the cylinder (20) and its lower end portion is located in the upper portion of the erosion reservoir (45). Openings are located in the lower end portion of the canister (20) so that solid dry chemical sanitizing elements (T) located in the lower end portion of the canister (20) can be contacted by water in the erosion reservoir (45) to erode and dissolve the solid elements (T) to chemically treat water flowing out of the erosion reservoir (45) into the collection reservoir (4).