A hot-air supplying method that includes: generating, by means of a heat pump, hot air that is at a temperature lower than a desired target hot-air temperature; subsequently heating, by a heater, the hot air having been generated by the heat pump, while controlling the heater the temperature adjuste
A hot-air supplying method that includes: generating, by means of a heat pump, hot air that is at a temperature lower than a desired target hot-air temperature; subsequently heating, by a heater, the hot air having been generated by the heat pump, while controlling the heater the temperature adjuster so as to adjust the temperature of hot air thus heated to the target hot-air temperature. This makes it possible to supply, with reduced energy loss and at low costs, hot air for processing a work, the hot air being necessary in a factory where processing and assembly or the like are carried out. Further, temperature control accuracy is enhanced.
대표청구항▼
1. A hot-air supplying device for a processing device that processes a work, the hot-air supplying device comprising: a heat pump configured to generate hot air at a temperature lower than a target hot-air temperature necessary for the process, the heat pump being connected to both a suction path to
1. A hot-air supplying device for a processing device that processes a work, the hot-air supplying device comprising: a heat pump configured to generate hot air at a temperature lower than a target hot-air temperature necessary for the process, the heat pump being connected to both a suction path to suck air into the heat pump and a preheated hot air supply path;a heater configured to heat the hot air generated by the heat pump and supplied by the preheated hot air supply path;a temperature adjuster configured to control the heater so that the temperature of the hot air, generated by the heat pump, is further heated to adjust the generated hot air to the target hot-air temperature; anda bypass that directly connects the suction path and the preheated hot air supply path such that air from the suction path is directly introducible into the preheated hot air supply path. 2. The hot-air supplying device of claim 1, wherein the heater electrically heats the generated hot air. 3. The hot-air supplying device of claim 1, wherein the bypass provides a temperature reducer configured to lower the temperature of the generated hot air when the temperature of the generated hot air is higher than a predetermined temperature by opening the bypass. 4. The hot-air supplying device of claim 1, wherein a low temperature-side heat source that enters the heat pump is liquid that has absorbed heat that has been generated in processing of a work in the processing device that uses the hot air produced in the hot-air supplying device, or in another processing device different from the processing device. 5. The hot-air supplying device of claim 1, wherein a low temperature-side heat source that enters the heat pump is coolant for the processing device or another processing device. 6. The hot-air supplying device of claim 1, wherein the heater is for being provided to a drying device configured to dry a hoop. 7. The hot-air supplying device of claim 1, wherein a low temperature-side heat source that enters the heat pump is coolant for cooling a molding device, and the heater is for being provided to a drying device configured to dry a hoop before processing of the hoop by the molding device. 8. The hot-air supplying device of claim 1, further comprising: a sensor configured to measure a temperature of a low temperature-side heat source that enters the heat pump;a sensor configured to measure a temperature of suction air that enters the heat pump; anda controller configured to control the heat pump based on results of detection by the sensors. 9. The hot-air supplying device of claim 2, wherein the bypass provides a temperature reducer configured to lower the temperature of the generated hot air when the temperature of the generated hot air is higher than a predetermined temperature by opening the bypass. 10. The hot-air supplying device of claim 3, further comprising a control valve configured to open the bypass based upon detection results of a preheated hot air temperature sensor that measures a temperature of preheated hot air and a suction air temperature sensor that measures a temperature of suction air. 11. The hot-air supplying device of claim 9, further comprising a control valve configured to open the bypass based upon detection results of a preheated hot air temperature sensor that measures a temperature of preheated hot air and a suction air temperature sensor that measures a temperature of suction air. 12. A hot-air supplying method for supplying hot air to a processing device that process a work, the hot-air supplying method comprising: generating, with a heat pump, hot air at a temperature lower than a target hot-air temperature necessary for processing;connecting the heat pump to a suction path to suck in air and a preheated hot air supply path;subsequently heating the hot air generated by the heat pump and supplied by the preheated hot air supply path, while controlling a heater, which heats the generated hot air, with a temperature adjuster so that the temperature of the generated hot air is adjusted to the target hot-air temperature; andconnecting the suction path and the preheated hot air supply path via a bypass so that air from the suction path is directly introducible into the preheated hot air supply path. 13. The hot-air supplying method of claim 12, further comprising lowering the temperature of the generated hot air, by opening the bypass, when the temperature of the generated hot air is higher than a predetermined temperature. 14. The hot-air supplying method of claim 12, further comprising providing a control valve to open the bypass based upon a temperature of preheated hot air measured by a preheated hot air temperature sensor and temperature of suction air measured by a suction air temperature sensor.
Perry Timothy J. ; Liang Hongmei ; Burkhart Larry J. ; Wright Nathan D. ; Rust ; Jr. Raymond A. ; Sullivan Louis J., Method and apparatus for controlling supplemental heat in a heat pump system.
Zimmer, Tom C.; Johnson, Tim N.; Lafleur, Robert; Bowley, Brice Alan; Hirose, Shinichi; Amazutsumi, Masanobu; Thomas, Gregory Michael; Ariga, Tohru, Triac control of positive temperature coefficient (PTC) heaters in room air conditioners.
Alley Robert P. (Onondaga NY) Pohl Walter J. (Louisville KY) Relyea John W. (Onondaga NY), Two stage control circuit for reversible air cycle heat pump.
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