Process for precise volumetrio diluting/mixing of chemicals
First Claim
Patent Images
1. A process for precision mixing of chemicals from multiple bulk sources which comprises:
- providing a metered vessel, such vessel comprising a container of predetermined volume;
providing a first intake conduit for the flow of chemical between a first bulk source and the metered vessel;
providing a first constricted fill tube in the container, the first fill tube extending to a first height;
providing a second intake conduit for the flow of chemical between a second bulk source and the metered vessel;
providing a second constricted fill tube in the container, the second fill tube extending to a second height which is higher than the first height;
providing at least first and second sensors associated with each fill tube, the first sensor detecting when the chemical level is approaching a desired volume and the second sensor positioned to detect the presence of chemical in the associated fill tube when chemical has reached the desired volume in the metered vessel;
providing a first valve on the first intake conduit responsive to the second sensor associated with the first fill tube, for ceasing fluid flow to the metered vessel through the first intake conduit;
providing a second valve on the second intake conduit responsive to the second sensor associated with the second fill tube, for ceasing fluid flow to the metered vessel through the second intake conduit;
providing a conduit from the metered vessel to at least one down-stream facility;
providing means to transfer chemical from the bulk sources to the metered vessel;
providing means to motivate chemical from the metered vessel to the down-stream facility; and
wherein precision mixing is accomplished by the following steps;
motivating chemical from the first bulk source into the metered vessel until chemical reaches the second sensor associated with the first fill tube, at which point the first valve on the first intake conduit is regulated to cease chemical flow to the metered vessel;
motivating chemical from the second bulk source into the metered vessel until chemical reaches the second sensor associated with the second fill tube, at which point the second valve on the second intake conduit is regulated to cease chemical flow into the metered vessel;
mixing together the chemicals from the first bulk source and the second bulk source in measured proportions provided from the metered vessel; and
transferring mixed chemical to the down-stream facility.
9 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and method for accurate measuring and mixing of chemicals is disclosed. The apparatus includes one or more metered vessels having a container of predetermined volume and at least one constricted vent tube therein. By mounting a sensor on the constricted vent tube, a greatly amplified measurement of the precise chemical volume in the metered vessel is provided. The apparatus and method of the present invention readily lends itself to a variety of applications and can be adapted to handle virtually any form of chemical mixing, diluting, or generating process.
-
Citations
13 Claims
-
1. A process for precision mixing of chemicals from multiple bulk sources which comprises:
-
providing a metered vessel, such vessel comprising a container of predetermined volume; providing a first intake conduit for the flow of chemical between a first bulk source and the metered vessel; providing a first constricted fill tube in the container, the first fill tube extending to a first height; providing a second intake conduit for the flow of chemical between a second bulk source and the metered vessel; providing a second constricted fill tube in the container, the second fill tube extending to a second height which is higher than the first height; providing at least first and second sensors associated with each fill tube, the first sensor detecting when the chemical level is approaching a desired volume and the second sensor positioned to detect the presence of chemical in the associated fill tube when chemical has reached the desired volume in the metered vessel; providing a first valve on the first intake conduit responsive to the second sensor associated with the first fill tube, for ceasing fluid flow to the metered vessel through the first intake conduit; providing a second valve on the second intake conduit responsive to the second sensor associated with the second fill tube, for ceasing fluid flow to the metered vessel through the second intake conduit; providing a conduit from the metered vessel to at least one down-stream facility; providing means to transfer chemical from the bulk sources to the metered vessel; providing means to motivate chemical from the metered vessel to the down-stream facility; and wherein precision mixing is accomplished by the following steps;
motivating chemical from the first bulk source into the metered vessel until chemical reaches the second sensor associated with the first fill tube, at which point the first valve on the first intake conduit is regulated to cease chemical flow to the metered vessel;
motivating chemical from the second bulk source into the metered vessel until chemical reaches the second sensor associated with the second fill tube, at which point the second valve on the second intake conduit is regulated to cease chemical flow into the metered vessel;
mixing together the chemicals from the first bulk source and the second bulk source in measured proportions provided from the metered vessel; and
transferring mixed chemical to the down-stream facility. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. Apparatus for accurately mixing chemicals from at least two bulk sources which comprises:
-
a metered vessel comprising a container of predetermined volume. at 1easer first and second constricted fill tubes in the container, the first fill tube extending to a first height, and the second fill tube extending to a second height which is higher than the first height; a first intake line providing fluid communication between a first bulk source and the metered vessel; a second bulk intake line providing fluid communication between a second bulk source and the metered vessel; a dispense line providing fluid communication between the metered vessel and at least one down-stream facility; at least first and second sensors associated with each fill tube, the first sensor detecting when chemical level is approaching a desired volume and the second sensor positioned to detect the presence of chemical in the associated fill tube when chemical has reached the desired volume in the metered vessel so as to assure precise cessation of chemical flow at the desired volume; a first value on the first intake line responsive to the second sensor associated with the first fill tube, for ceasing fluid flow to the metered vessel through the first intake line; a second valve on the second intake line responsive to the second sensor associated with the second fill tube, for ceasing fluid flow to the metered vessel through the second intake line; wherein the metered vessel is first filled with chemical from the first bulk source until the second sensor associated with the first fill tube detects the presence of chemical in the first fill tube and the valve on the first intake line is closed to cease fluid flow from the first bulk source; and
the metered vessel is next filled with chemical from the second bulk source until the second sensor associated with the second fill tube detects the presence of chemical in the second fill tube and the valve on the second intake line is closed to cease fluid flow from the second bulk source. - View Dependent Claims (9, 10, 11, 12, 13)
-
Specification