Patent ID: 11859924
Assignee: BALTIMORE AIRCOIL COMPANY, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 3:
4. A cooling tower system comprising:
a cooling tower comprising:
an evaporative heat exchanger, the cooling tower operable to distribute an evaporative liquid onto the evaporative heat exchanger;
a sensor configured to detect a parameter of the evaporative liquid; and
an evaporative liquid treatment system;

a controller operably coupled to the cooling tower, the controller having a normal operating mode wherein the controller operates the evaporative liquid treatment system to treat the evaporative liquid upon a determination of inadequate evaporative liquid quality based at least in part on the parameter of the evaporative liquid;
the controller having a failsafe operating mode wherein the controller changes operation of the cooling tower upon a determination that the operation of the evaporative liquid treatment system is unable to remedy the inadequate evaporative liquid quality;
wherein the controller, in the normal operating mode, is capable of operating the cooling tower in a plurality of modes including a wet mode wherein the cooling tower distributes the evaporative liquid onto the evaporative heat exchanger and a dry mode wherein the cooling tower limits distribution of the evaporative liquid onto the evaporative heat exchanger; and
wherein the controller, in the failsafe operating mode, refrains from operating the cooling tower in the wet mode;
wherein the cooling tower includes at least one operating parameter sensor configured to detect an operating parameter of the cooling tower;
the controller is configured to receive a process fluid temperature request and determine whether to operate the cooling tower in the wet mode to satisfy the process fluid temperature request based at least in part on the process fluid temperature request and the operating parameter; and
wherein the controller, in the failsafe operating mode, refrains from operating the cooling tower in the wet mode despite the controller determining operation of the cooling tower in the wet mode is appropriate to satisfy the process fluid temperature request.