초록 ▼

A failure diagnosing system for an absorption chiller including an evaporator, absorber, etc. comprises a plurality of sensors for measuring at least one representative temperatures of each of two fluids participating in heat exchange in a specified heat exchange unit, and an arithmetic unit for rec

A failure diagnosing system for an absorption chiller including an evaporator, absorber, etc. comprises a plurality of sensors for measuring at least one representative temperatures of each of two fluids participating in heat exchange in a specified heat exchange unit, and an arithmetic unit for receiving measurement data from the sensors. The arithmetic unit comprises a circuit for calculating an actual temperature difference using a simple calculation equation defined by a linear expression, a circuit for calculating the amount of heat exchange by the absorber, and a circuit for calculating the degree of abnormality of the absorber by comparing the actual temperature difference with an ideal temperature difference for the same amount of heat exchange as the calculated amount.

대표청구항 ▼

A failure diagnosing system for an absorption chiller comprising a plurality of heat exchange units including a regenerator, condenser, evaporator and absorber, the failure diagnosing system comprising: temperature measuring means for measuring at least one representative temperature of each of two

A failure diagnosing system for an absorption chiller comprising a plurality of heat exchange units including a regenerator, condenser, evaporator and absorber, the failure diagnosing system comprising: temperature measuring means for measuring at least one representative temperature of each of two fluids participating in heat exchange at a specified heat exchange unit, temperature difference data calculating means for storing a temperature difference data calculating equation comprising a linear expression containing the representative temperatures of the two fluids as its factors and using the calculating equation to calculate actual temperature difference data from the measurement data obtained by the temperature measuring means, heat exchange amount deriving means for deriving by measuring and calculation the amount of heat exchange by the specified heat exchange unit or other amount of heat exchange which varies with said amount of heat exchange, storage means having stored therein ideal temperature difference data for normal operation as related to the amount of heat exchange, and abnormality identifying means for preparing abnormality data indicating an abnormality of the specified heat exchange unit by comparing the actual temperature difference data obtained by the temperature difference calculating means with the ideal temperature difference data for the same amount of heat exchange as the amount of heat exchange obtained by the deriving means.