| 摘要 |
In a constant-temperature liquid circulating apparatus provided with a constant-temperature liquid circuit section, a refrigerating circuit section and a control section, the refrigerating circuit section is provided with a main circuit section which comprises a compressor whose revolution speed is controlled by an inverter power source, a condenser, an electronic expansion valve and an evaporator, and a hot gas circuit section which bypasses the condenser and which has an electronic expansion valve; the constant-temperature circuit section is provided with a heat exchanger, a temperature sensor and circulating means; and the control section controls the opening degree of the electronic expansion valve, and the revolution speed of the compressor according to a signal from the temperature sensor, thereby controlling the temperature of constant-temperature liquid supplied to a load to a predetermined temperature.
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