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US 12,007,182 B2Granted
Flow rate abnormality detection device, cooling system, flow rate abnormality detection method and program
AssigneeNEC Platforms, Ltd.
InventorYasuhito Nakamura
Life of this patent
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Abstract
A flow rate abnormality detection device includes: a number determination unit that determines a number of devices to be cooled; a threshold value setting unit that sets a threshold value based on the number of devices to be cooled; and an abnormality determination unit that determines that there is an abnormality when a total flow rate of refrigerant supplied to the devices to be cooled is less than the threshold value.
Claims5
A flow rate abnormality detection device comprising:
- a memory configured to store instructions;
- a processor configured to execute the instructions to determine a number of devices to be cooled;
- a flow rate detector configured to output a first signal of a first current value proportional to a total flow rate of refrigerant supplied to the devices to be cooled;
- and
- a circuit configured to output a second signal of a second current value for determining whether the total flow rate is abnormal, based on the number of devices to be cooled,
- wherein the processor is configured to execute the instructions to determine that the total flow rate is abnormal when a magnitude of the first current value is smaller than a magnitude of the second current value,
- wherein the circuit is configured to multiply a refrigerant flow rate per device to be cooled by the number of the devices to be cooled to calculate a threshold value,
- and wherein the refrigerant flow rate per device to be cooled is a predetermined constant, and the second signal indicates the threshold value.
5 more elements
A flow rate abnormality detection method comprising:
- determining a number of devices to be cooled;
- outputting, by a flow rate detector, a first signal of a first current value proportional to a total flow rate of refrigerant supplied to the devices to be cooled;
- outputting, by a circuit, a second signal of a second current value for determining whether the total flow rate is abnormal, based on the number of devices to be cooled;
- determining that the total flow rate is abnormal when a magnitude of the first current value is smaller than a magnitude of the second current value;
- and
- multiplying, by the circuit, a refrigerant flow rate per device to be cooled by the number of the devices to be cooled to calculate a threshold value,
- wherein the refrigerant flow rate per device to be cooled is a predetermined constant, and the second signal indicates the threshold value.
4 more elements
Dependencies are inferred from the claim text.