Formulating chemical solutions based on volumetric and weight based control measurements
First Claim
1. A system comprising:
- a storage tank that stores at least one component chemical concentrate;
a controller that receives an instruction requesting formulation of a specified amount of a chemical solution and determines a target volume of water and a target weight of the at least one component chemical concentrate based on the specified amount of the chemical solution;
an output port that receives water from a water source and the at least one component chemical concentrate from the storage tank and dispenses the water and the at least one component chemical concentrate to a solution container;
a flow meter that measures volumetric readings representing a volume of the water supplied from the water source to the output port; and
a weight measuring device that measures weight readings representing an actual weight of the at least one component chemical concentrate contained in the storage tank,wherein the controller further controls supply of the water to the output port based on the volumetric readings and controls supply of the at least one component chemical concentrate to the output port based on the weight readings to form the specified amount of the chemical solution.
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Accused Products
Abstract
A system and method for formulating a chemical solution using both volumetric and weight based measurements of components of the chemical solution is disclosed. The components of the chemical solution include water and at least one other component, which may take any form, such as, without limitation, liquid, solid, powder or gaseous form. Formulation of the chemical solution is administered by combining water with the one or more other components at an output port, from which this combination is dispensed to a solution storage tank. In response to a user'"'"'s request to formulate a specified amount of the chemical solution, the volume of water provided to the output port is monitored by a flow meter and the weight of the other component(s) provided to the output port is monitored by one or more load cells. Based on such monitoring, appropriate amounts of water and the other component(s) are combined together to formulate the specified amount of the chemical solution in the solution storage tank.
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Citations
14 Claims
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1. A system comprising:
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a storage tank that stores at least one component chemical concentrate; a controller that receives an instruction requesting formulation of a specified amount of a chemical solution and determines a target volume of water and a target weight of the at least one component chemical concentrate based on the specified amount of the chemical solution; an output port that receives water from a water source and the at least one component chemical concentrate from the storage tank and dispenses the water and the at least one component chemical concentrate to a solution container; a flow meter that measures volumetric readings representing a volume of the water supplied from the water source to the output port; and a weight measuring device that measures weight readings representing an actual weight of the at least one component chemical concentrate contained in the storage tank, wherein the controller further controls supply of the water to the output port based on the volumetric readings and controls supply of the at least one component chemical concentrate to the output port based on the weight readings to form the specified amount of the chemical solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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storing at least one component chemical concentrate in a storage tank; receiving an instruction from a user requesting formulation of a specified amount of a chemical solution; determining a target volume of water and a target weight of the at least one component chemical concentrate appropriate to formulate the specified amount of the chemical solution; measuring volumetric readings representing a volume of the water supplied to a solution container; measuring weight readings representing an actual weight of the at least one component chemical concentrate remaining in the storage tank while the component chemical concentrate is supplied to the solution container; and controlling the supply of the water and the supply of the at least one component chemical concentrate to the solution container based on the volumetric readings and the weight readings to formulate the specified amount of the chemical solution. - View Dependent Claims (11, 12, 13)
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14. A system comprising:
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a concentrate container that stores at least one component chemical concentrate; a solution storage container that receives the at least one component chemical concentrate and water; a controller, communicatively coupled to a weight measuring device, a flow meter, a first control valve, a second control valve, and a user interface selection device, that receives an instruction via the user interface selection device requesting formulation of a specified amount of a chemical solution and determines a target volume of water and a target weight of the at least one component chemical concentrate to be dispensed into the solution storage container based on the specified amount of the chemical solution; a component sump connected to the weight measuring device, wherein the weight measuring device measures, as the at least one component chemical concentrate is pumped into the component sump, an actual weight of the at least one component chemical concentrate contained in the component sump; a pump fluidly connected between the concentrate container and the component sump that pumps the at least one component chemical concentrate from the concentrate container into the component sump; wherein the controller further receives the measured actual weight and controls the pump such that the target weight of the at least one component chemical concentrate is pumped into the component sump; wherein the flow meter is fluidly connected to the first control valve, and the flow meter measures a volume of water supplied from the first control valve to the solution storage container, wherein the controller further receives the measured volume of water and controls the first control valve such that the target volume of water is supplied to the solution storage container, wherein the second control valve fluidly connected between the component sump and the solution storage container enables flow of the at least one component chemical concentrate from the component sump to the solution storage container, and wherein the controller further controls the second control valve such that the target weight of the at least one component chemical concentrate flows from the component sump to the solution storage container.
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Specification