초록 ▼

An exemplary embodiment includes a booster water heater for fluids, e.g., water, that has a reservoir for the fluids, at least one electrical heating element extending into the reservoir and a control system for applying an overload voltage to the heating element. In a more preferred embodiment, the

An exemplary embodiment includes a booster water heater for fluids, e.g., water, that has a reservoir for the fluids, at least one electrical heating element extending into the reservoir and a control system for applying an overload voltage to the heating element. In a more preferred embodiment, the booster water heater is used to preheat water in commercial dishwashing applications.

대표청구항 ▼

1. A booster water heater, comprising: a container for water having an inlet and an outlet;an immersion electrical heating element extending into the container, the electrical heating element having an upper design voltage limit; anda controller configured to adjust the electrical heating element vo

1. A booster water heater, comprising: a container for water having an inlet and an outlet;an immersion electrical heating element extending into the container, the electrical heating element having an upper design voltage limit; anda controller configured to adjust the electrical heating element voltage from a first voltage pattern to a second voltage pattern when a predetermined condition is met, wherein the first voltage pattern comprises an overload voltage of the electrical heating element that is above the upper design voltage limit of the electrical heating element. 2. The booster water heater of claim 1, wherein a mean voltage of the first voltage pattern is at least 1.5 times greater than a mean voltage of the second voltage pattern. 3. The booster water heater of claim 1, wherein the first voltage pattern is a first voltage level and the second voltage pattern is a second voltage level. 4. The booster water heater of claim 1, wherein the electrical heating element is an electric resistance heating element. 5. The booster water heater of claim 1, further comprising a timer coupled to the controller, wherein the controller is configured to adjust the heating element voltage from the first pattern to the second pattern after a predetermined amount of time. 6. The booster water heater of claim 5, wherein the predetermined amount of time does not exceed fifteen seconds. 7. The booster water heater of claim 1, further comprising a temperature sensor coupled to the controller, wherein the controller is configured to adjust the heating element voltage from the first pattern to the second pattern after a predetermined temperature has been reached. 8. The booster water heater of claim 7, wherein the predetermined temperature is measured with regard to the heating element. 9. The booster water heater of claim 1, further comprising a voltmeter coupled to the controller and a data recorder coupled to the voltmeter, wherein the data recorder records a parameter that is a function of the measurements of the voltmeter with respect to time, and wherein the controller is configured to adjust the heating element voltage from the first voltage pattern to the second voltage pattern when a predetermined parameter has been recorded. 10. The booster water heater of claim 1, further comprising a dishwasher coupled to the outlet. 11. The booster water heater of claim 1, wherein the container is a vessel with a volume of a gallon or less. 12. The booster water heater of claim 1, wherein the container is a tank with a volume of more than a gallon. 13. A fluid heater, comprising: a container having an inlet and an outlet;an electrical heating element coupled to the container, wherein the heating element is rated to operate at an operational level; anda controller configured to adjust the electrical heating element voltage and/or current from an overload level to the operational level after a predetermined condition is met, wherein the overload level is above an upper design limit of the electrical heating element. 14. The booster water heater of claim 13, further comprising a timer coupled to the controller, wherein the predetermined condition is a predetermined amount of time measured by the timer, and wherein the predetermined amount of time is less than sixty seconds following the start of the overload level. 15. The fluid heater of claim 14, wherein the predetermined amount of time is less than fifteen seconds following the start of the overload level. 16. The fluid heater of claim 13, wherein the electrical heating element is an electric resistance heating element, and wherein the overload level is a first voltage level and the operational level is a second voltage level. 17. The fluid heater of claim 13, wherein the electrical heating element is an electric induction heating element, and wherein the overload level is a first current level and the operational level is a second current level. 18. The fluid heater of claim 13, further comprising a dishwasher coupled to the outlet. 19. A method to reduce response time in an electrical booster water heater, comprising: supplying an overload voltage to a heating element having an upper design voltage limit, wherein the overload voltage is above the upper design voltage limit; andreducing the overload voltage to an operational voltage that is less than the upper design voltage limit once a predetermined condition is met. 20. The method to reduce response time in claim 19, wherein the predetermined condition is a water temperature. 21. The method to reduce response time in claim 19, wherein the predetermined condition is a time limit.