Heat pump-type hot-water supply device
A hot water supply device and heat pump technology, which can be used in residential hot water supply systems, heating methods, water heaters, etc., and can solve problems such as large margins
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Embodiment approach 1
[0060] first, figure 1 The configuration of the heat pump hot water supply device according to Embodiment 1 of the present invention is shown.
[0061] For example figure 1 As shown, the hot water supply device has a heat source side heat pump unit A and a hot water supply unit B. The heat source side heat pump unit A is composed of a compressor 1 that compresses a refrigerant to obtain a high-temperature and high-pressure refrigerant; The refrigerant condenses to dissipate the heat from the refrigerant; the expansion valve 3 decompresses the high-pressure refrigerant condensed by the heat radiation heat exchanger 2; and the air heat exchanger (evaporator) 4, which The refrigerant decompressed by the expansion valve 3 is evaporated to absorb heat from the air supplied via the fan 5 .
[0062] The hot water supply unit B is composed of: a vertically long water tank (hot water supply tank) 7 for storing hot water supply water; a water supply pipe 8 that supplies water from ...
Embodiment approach 2
[0100] then, Figure 2 to Figure 5 The configuration of the heat pump hot water supply device and the water supply control device thereof according to Embodiment 2, which is configured on the premise of the configuration of Embodiment 1 described above, is shown.
[0101] According to the findings of the inventors, the hardness of well water and tap water on the market and the temperature at which scale adhesion starts, for example, exist Figure 9 In the inverse proportional relationship shown in the graph of , the higher the hardness, the lower the scaling start temperature, and the lower the hardness, the higher the scaling start temperature.
[0102]Therefore, the hardness of the water used by the user is confirmed in advance, and based on the hardness, the set temperature of the hot water used (the set hot water outflow temperature from the endothermic heat exchanger 10 determined by the season) is used as a reference. The maximum allowable hardness of the water actually...
Embodiment approach 3
[0119] then, Figure 6 The configuration of the heat pump hot water supply device according to Embodiment 3, which is configured on the premise of the configuration of Embodiment 1 described above, is shown.
[0120] In Embodiment 3, scale deposition amount monitoring means 17 for monitoring the deposition amount of scale is provided at the hot water outlet portion of the endothermic heat exchanger 10 in the configuration of Embodiment 1 described above. Furthermore, in the third embodiment, a flow rate control unit 16 is provided for depositing scale at the hot water outlet portion of the heat absorption heat exchanger 10 based on the monitoring value (detection value) of the scale deposition amount monitoring unit 17 . In such a way that the amount is below a predetermined value, adjust the solenoid valve V of the second water supply system path 8b 2 to adjust the water inflow to the water quality adjustment unit 13.
[0121] The other structures are the same as those of t...
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