CN105102902A - Hot-water supply device - Google Patents
Hot-water supply device Download PDFInfo
- Publication number
- CN105102902A CN105102902A CN201480017987.6A CN201480017987A CN105102902A CN 105102902 A CN105102902 A CN 105102902A CN 201480017987 A CN201480017987 A CN 201480017987A CN 105102902 A CN105102902 A CN 105102902A
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- CN
- China
- Prior art keywords
- thermal medium
- water
- hot water
- loop
- supplying hot
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 816
- 238000010438 heat treatment Methods 0.000 claims abstract description 60
- 239000003507 refrigerant Substances 0.000 claims description 81
- 238000012546 transfer Methods 0.000 claims description 75
- 230000002441 reversible effect Effects 0.000 claims description 45
- 239000008346 aqueous phase Substances 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000008233 hard water Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 29
- 238000010586 diagram Methods 0.000 description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 20
- 238000001556 precipitation Methods 0.000 description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 10
- 239000001569 carbon dioxide Substances 0.000 description 10
- 230000015556 catabolic process Effects 0.000 description 10
- 238000006731 degradation reaction Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 230000005855 radiation Effects 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 238000013517 stratification Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 238000012217 deletion Methods 0.000 description 6
- 230000037430 deletion Effects 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- 230000008014 freezing Effects 0.000 description 6
- 238000007710 freezing Methods 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 238000012937 correction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000000153 supplemental effect Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000807 Ga alloy Inorganic materials 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000012814 acoustic material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000006023 eutectic alloy Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001084 galinstan Inorganic materials 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
- F24D2240/26—Vertically distributed at fixed positions, e.g. multiple sensors distributed over the height of a tank, or a vertical inlet distribution pipe having a plurality of orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/38—Control of compressors of heat pumps
Abstract
A hot-water supply device comprises: a heat medium circuit (4) which is formed by connecting, in a loop shape by means of heat medium piping, the upper part and lower part of a tank (11) for storing a heat medium and through which the heat medium circulates; a heating device (30) which heats the heat medium; a pump (14, 31) which is provided in the heat medium circuit (4) and which circulates the heat medium; and a hot-water supply circuit (16) through which water supplied from a water pipeline flows to a hot-water supply end (17). The hot-water supply device is characterized by comprising a hot-water supply heat exchanger (13) for exchanging heat between the heat medium which flows through the heat medium circuit (4) and water which flows through the hot-water supply circuit (16). Water which contains an increased proportion of hard water components can be used because the heat medium circuit (4) is a closed circuit, and in addition, the hot-water supply device is reduced in size and cost because the single heat medium circuit (4) performs both the heating of the heat medium and the heating of the water which is supplied to the hot-water supply end.
Description
Technical field
The present invention relates to hot-water supply.
Background technology
As existing hot-water supply, there is the tank (tank) (for example, referring to patent document 1) of storage thermal medium.
As shown in figure 14, this hot-water supply comprises: the heat-accumulator tank of storage thermal medium; To the heat pump unit that thermal medium heats; To the general supplying hot water loop of general supplying hot water terminal supplying hot water; To the bathtub supplying hot water loop of bathtub supplying hot water; Be stored in the supplying hot water heating circuit of the thermal medium flowing of the high temperature of heat-accumulator tank; The supplying hot water heat exchanger of heat exchange is carried out with the thermal medium of the high temperature flowed in supplying hot water heating circuit and the water supplied from running water pipe.
This hot-water supply will be stored in heat-accumulator tank with the warmed-up thermal medium of heat pump unit, make to be stored in the thermal medium of heat-accumulator tank and in supplying hot water heat exchanger, carry out heat exchange and generating hot water from the water supply of running water pipe.
According to this structure, circulate in the water loop that thermal medium is only connected annularly at heat pump unit and heat-accumulator tank and the supplying hot water heating circuit that supplying hot water is connected annularly with heat exchanger and heat-accumulator tank, thus, can not to general supplying hot water terminal or bathtub supply.That is, thermal medium circulates in loop circuit.Thus, the water that hardness components is many always can not flow through heat pump unit, suppresses the precipitation of incrustation scale (calcium component in water etc. become solid-state and material that is that obtain), can use the water that hardness components is many.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2012-7802 publication
Summary of the invention
The problem that invention will solve
But, in above-mentioned existing structure, be respectively arranged with water loop and supplying hot water heat exchanger that heat pump unit and heat-accumulator tank be formed by connecting annularly and the supplying hot water heating circuit that heat-accumulator tank is formed by connecting annularly.In addition, pump fluid being circulated is loaded in each loop.Thus, there is the problem that hot-water supply maximizes, cost increases.
The present invention solves above-mentioned existing problem, and object is to provide the water that hardness components can be used many, and can the hot-water supply of miniaturized, cost degradation.
For solving the method for problem
In order to solve above-mentioned existing problem, the feature of hot-water supply of the present invention is, comprising: the thermal medium loop be formed by connecting annularly in the bottom of the tank of storage thermal medium and top with thermal medium pipe arrangement, and above-mentioned thermal medium circulates in above-mentioned thermal medium loop; To the heater that above-mentioned thermal medium heats; Be configured at the pump that above-mentioned thermal medium is circulated in above-mentioned thermal medium loop; Flow to the supplying hot water loop of supplying hot water terminal with the water supplied from running water pipe, above-mentioned hot-water supply is provided with the heat exchanger carrying out heat exchange between the above-mentioned water that flows in the above-mentioned thermal medium and above-mentioned supplying hot water loop flowed in above-mentioned thermal medium loop.
Thus, thermal medium loop becomes loop circuit.In addition, between the water flowed in the thermal medium flowed in thermal medium loop due to heat exchanger and supplying hot water loop, heat exchange is carried out, so can the heating of thermal medium be realized with a thermal medium loop and be supplied to the heating of water of supplying hot water terminal.
Invention effect
According to the present invention can provide can use the water containing more hardness components, can the hot-water supply of miniaturized, cost degradation.
Accompanying drawing explanation
Fig. 1 is the summary construction diagram of the hot-water supply of embodiments of the present invention 1.
Fig. 2 represents calcium carbonate (CaCO
3) the chart of solubility curve.
Fig. 3 is the summary construction diagram of the hot-water supply of embodiments of the present invention 2.
Fig. 4 is the summary construction diagram of the hot-water supply of embodiments of the present invention 3.
Fig. 5 is the summary construction diagram of the hot-water supply of embodiments of the present invention 4.
Fig. 6 is the summary construction diagram of the hot-water supply of embodiments of the present invention 5.
Fig. 7 is the summary construction diagram of the hot-water supply of embodiments of the present invention 6.
Fig. 8 is the summary construction diagram of the hot-water supply of embodiments of the present invention 7.
Fig. 9 is the summary construction diagram of the hot-water supply of embodiments of the present invention 8.
Figure 10 (a) is the stereogram of the outline of the threeway heat exchanger of the hot-water supply representing embodiments of the present invention 9, and (b) is the sectional view of the outline representing this threeway heat exchanger.
Figure 11 is the summary construction diagram of the hot-water supply of embodiments of the present invention 10.
Figure 12 is the summary construction diagram of the hot-water supply of embodiments of the present invention 11.
Figure 13 is the summary construction diagram of the hot-water supply of embodiments of the present invention 12.
Figure 14 is the summary construction diagram of existing hot-water supply.
Detailed description of the invention
1st aspect is that the feature of hot-water supply is, comprising: the thermal medium loop be formed by connecting annularly in the bottom of the tank of storage thermal medium and top with thermal medium pipe arrangement, and above-mentioned thermal medium circulates in above-mentioned thermal medium loop; To the heater that above-mentioned thermal medium heats; Be configured at the pump that above-mentioned thermal medium is circulated in above-mentioned thermal medium loop; Flow to the supplying hot water loop of supplying hot water terminal with the water supplied from running water pipe, above-mentioned hot-water supply is provided with the heat exchanger carrying out heat exchange between the above-mentioned water that flows in the above-mentioned thermal medium and above-mentioned supplying hot water loop flowed in above-mentioned thermal medium loop.
Thus, thermal medium loop becomes loop circuit.In addition, the structure utilizing the thermal medium flowed in thermal medium loop to heat running water is adopted.Therefore, it is possible to the precipitation of incrustation scale (calcium component in water etc. become solid-state and material that is that obtain) in thermal medium loop near high-temperature portion, particularly heater in suppression hot-water supply.Thereby, it is possible to provide the hot-water supply that can use the water comprising more hardness components.
In addition, the water in supplying hot water loop has been flowed into from running water pipe supply, because of the pressure (hydraulic pressure) of water flowed at running water pipe to supplying hot water end flow.Thereby, it is possible to guarantee the flow of the hot water from the supply of supplying hot water terminal.Therefore, it is possible to improve the usability of user.
In addition, a thermal medium loop can be utilized to carry out the heating of the heating of thermal medium and the water to the supply of supplying hot water terminal, the number of pump can be cut down.Thereby, it is possible to realize miniaturization, the cost degradation of hot-water supply.
The feature of the 2nd aspect is, in particularly in the 1st, above-mentioned thermal medium loop is provided with the heating part utilizing the above-mentioned thermal medium of above-mentioned heating devices heat, makes above-mentioned heat exchanger be the supplying hot water heat exchanger with the thermal medium stream of above-mentioned thermal medium flowing and the current road of above-mentioned water flow.
In supplying hot water heat exchanger, obtaining carrying out heat exchange between water and thermal medium from running water pipe supply, the temperature be supplied to as the hot water of the shower of general supplying hot water terminal, tap and bathtub is about 50 degree when the highest.Due to the water high precipitation more easily producing incrustation scale of temperature, so in the supplying hot water heat exchanger lower than heating part temperature, be difficult to the precipitation producing incrustation scale.
The feature of the 3rd aspect is, in particularly in the 2nd, above-mentioned heater is the heat pump assembly with refrigerant loop, compressor, radiator, decompressor, evaporimeter are formed by connecting by described refrigerant loop annularly, cold-producing medium, in the inner loop of above-mentioned refrigerant loop, carries out heat exchange between the above-mentioned thermal medium flowed in the above-mentioned cold-producing medium that above-mentioned radiator flows in above-mentioned refrigerant loop and above-mentioned thermal medium loop.
Thereby, it is possible to realize the hot-water supply of energy saving excellence.
The feature of the 4th aspect is, in particularly in the 3rd, there is control device, this control device implement in above-mentioned radiator above-mentioned cold-producing medium relative with above-mentioned thermal medium flow add heat run and in above-mentioned supplying hot water heat exchanger, above-mentioned thermal medium and above-mentioned aqueous phase operate to the supplying hot water flowed.
Thus, make the flowing of cold-producing medium and the flowing of thermal medium be relative current, the heat exchanger effectiveness adding heat run to thermal medium heating can be improved.In addition, make the flowing of thermal medium and the flowing of water be relative current, the heat exchanger effectiveness of the supplying hot water running to water heating can be improved.That is, a thermal medium loop is used for add both heat run and supplying hot water running, and the energy saving of hot-water supply can be improved.
The feature of the 5th aspect is, particularly in the 4th aspect, supplying hot water auxiliary rotating implemented by above-mentioned control device, above-mentioned supplying hot water auxiliary rotating makes above-mentioned cold-producing medium and above-mentioned thermal medium carry out heat exchange in above-mentioned radiator, and in above-mentioned supplying hot water heat exchanger, make above-mentioned thermal medium and above-mentioned water carry out heat exchange.
When carrying out supplying hot water running under the state that the thermal medium of the high temperature in tank decreases, by means of only the heat exchange of the thermal medium in supplying hot water heat exchanger with water, water is fully being heated sometimes.Under such circumstances, control device makes heat pump assembly action, uses radiators heat thermal medium, and carries out the heating of water with supplying hot water heat exchanger.Thereby, it is possible to supplying hot water terminal supplying hot water.
Namely, the thermal medium of the high temperature in tank decreases, because the heating of the heating by carry out the thermal medium utilizing cold-producing medium to realize simultaneously and the water that utilizes thermal medium to realize can generating hot water, so the hot-water supply of the comfortableness that improve user can be realized.
The feature of the 6th aspect is, in particularly in the 1st, above-mentioned heater has the refrigerant loop that cold-producing medium carries out circulating and the heat pump assembly heated above-mentioned thermal medium, above-mentioned heat exchanger is threeway heat exchanger, and this threeway heat exchanger has: form the refrigerant flow path of above-mentioned refrigerant loop, form the thermal medium stream in above-mentioned thermal medium loop and form the supplying hot water stream in above-mentioned supplying hot water loop.
Thus, thermal medium loop becomes loop circuit.In addition, the structure utilizing the thermal medium flowed in thermal medium loop to heat running water is adopted.Therefore, it is possible to the precipitation of incrustation scale (calcium component in water etc. become solid-state and material that is that obtain) in thermal medium loop near high-temperature portion, particularly heater in suppression hot-water supply.Thereby, it is possible to provide the hot-water supply that can use the water comprising more hardness components.
In addition, the water in supplying hot water loop has been flowed into from running water pipe supply, because of the pressure (hydraulic pressure) of water flowed at running water pipe to supplying hot water end flow.Thereby, it is possible to guarantee the flow of the hot water from the supply of supplying hot water terminal.Therefore, it is possible to improve the usability of user.
In addition, utilize a thermal medium loop and threeway heat exchanger can carry out the heating of the heating of thermal medium and the water to the supply of supplying hot water terminal, the number of pump can be cut down.Thereby, it is possible to realize miniaturization, the cost degradation of hot-water supply.
And, in threeway heat exchanger, the heating of water from running water pipe supply can be carried out, but the temperature be supplied to as the hot water of the shower of general supplying hot water terminal, tap and bathtub is about 50 degree when the highest.Water temperature height more easily produces the precipitation of incrustation scale, so be difficult to the precipitation producing incrustation scale in supplying hot water stream.
The feature of the 7th aspect is, the structure that in particularly in the 6th, above-mentioned threeway heat exchanger is above-mentioned refrigerant flow path, above-mentioned thermal medium stream and above-mentioned supplying hot water stream contact with each other.
Thus, the threeway heat exchanger that refrigerant flow path, thermal medium stream become to be integrated with supplying hot water stream is formed.Thereby, it is possible to realize the miniaturization of threeway heat exchanger and make hot-water supply miniaturized.
The feature of the 8th aspect is, in particularly in the 7th, there is control device, this control device implement in above-mentioned threeway heat exchanger above-mentioned cold-producing medium relative with above-mentioned thermal medium flow add heat run and in above-mentioned threeway heat exchanger, above-mentioned thermal medium and above-mentioned aqueous phase operate to the supplying hot water flowed.
Thus, make the flowing of cold-producing medium and the flowing of thermal medium be relative current, the heat exchanger effectiveness adding heat run to thermal medium heating can be improved.In addition, make the flowing of thermal medium and the flowing of water be relative current, the heat exchanger effectiveness of the supplying hot water running to water heating can be improved.That is, a thermal medium loop is used for add both heat run and supplying hot water running, and the energy saving of hot-water supply can be improved.
The feature of the 9th aspect is, in particularly in the 8th, and the supplying hot water auxiliary rotating that above-mentioned control device is implemented to make above-mentioned cold-producing medium, above-mentioned thermal medium and above-mentioned water flow into above-mentioned threeway heat exchanger and heated above-mentioned water.
When carrying out supplying hot water running under the state that the thermal medium of the high temperature in tank decreases, by means of only the heat exchange of the thermal medium in threeway heat exchanger and water, water can not be heated fully sometimes.Under these circumstances, control device makes heat pump assembly action, makes cold-producing medium, thermal medium and water flow into threeway heat exchanger, carries out the heating of water.Thereby, it is possible to supplying hot water terminal supplying hot water.
Namely, the thermal medium of the high temperature in tank decreases, because the heating of the heating by carry out the thermal medium utilizing cold-producing medium to realize simultaneously and the water that utilizes thermal medium to realize can generating hot water, so the hot-water supply of the comfortableness that improve user can be realized.
The feature of the 10th aspect is, in particularly in the 8th or the 9th, there is the thermistor detected the temperature of the above-mentioned thermal medium be stored in above-mentioned tank, when under the state that the temperature of the hot water being supplied to above-mentioned supplying hot water terminal is higher than the said temperature of the above-mentioned thermal medium in above-mentioned tank to above-mentioned supplying hot water terminal supplying hot water, above-mentioned control device is implemented above-mentioned cold-producing medium and above-mentioned aqueous phase in above-mentioned threeway heat exchanger and is operated to the emergent supplying hot water flowed.
Thus, when the temperature of the thermal medium of tank inside is lower than the temperature of the hot water to the supply of supplying hot water terminal, make cold-producing medium and hydrothermal exchange, can generating hot water.Thus, even if when the thermal medium of high temperature is not stored in tank inside, also to user's supplying hot water, usability can be improved.
The feature of the 11st aspect is, in any aspect particularly in the 1st to the 10th, above-mentioned thermal medium loop has the transfer valve of the loop direction switching above-mentioned thermal medium.
Thereby, it is possible to utilize transfer valve to switch the loop direction of thermal medium.That is, arrange a pump by means of only in thermal medium loop, the flowing of the cold-producing medium in threeway heat exchanger and the flowing of thermal medium can be made to be relative current, and make the flowing of the thermal medium in threeway heat exchanger and the flowing of water be relative current.Thereby, it is possible to improve the running efficiency of hot-water supply.
The feature of the 12nd aspect is, in any aspect particularly in the 1st to the 10th, said pump is the reversible pump that the loop direction of above-mentioned thermal medium can be made to reverse.
Thus, reversible pump is utilized can to switch the loop direction of thermal medium.That is, arrange a pump by means of only in thermal medium loop, the flowing of the cold-producing medium in threeway heat exchanger and the flowing of thermal medium can be made to be relative current, in addition, the flowing of thermal medium in Shi Jiao Change device and the flowing of water are relative current.Thereby, it is possible to improve the running efficiency of hot-water supply.
The feature of the 13rd aspect is, in any aspect particularly in the 1st to the 12nd, has supply pipe, and this supply pipe has the stop valve ended by stream, and is connected with the top of above-mentioned tank.
Thereby, it is possible to stop valve is opened thermal medium loop supplemental heat medium.In addition, such as, when using anti-icing fluid as thermal medium, the thermal medium of thermal medium loop inner can not freeze.Therefore, in thermal medium loop, thermal medium being circulated by only making pump drive, not needing the heater freezing to prevent running or install for pre-anti-freeze preventing from freezing.
The feature of the 14th aspect is, in any aspect particularly in the 1st to the 12nd, there is oral siphon, the stop valve that this oral siphon has pressure-reducing valve or ended by stream, from leaning on the above-mentioned supplying hot water branch of a circuit of upstream side than above-mentioned threeway heat exchanger and being connected with the above-mentioned bottom of above-mentioned tank.
Thus, even if the amount of the thermal medium in thermal medium loop decreases, thermal medium flows and supplies to tank in oral siphon.Thereby, it is possible to make the thermal medium of the inside in thermal medium loop always for more than a certain amount of.In addition, the adjunctive program of thermal medium becomes simple.
Below, with reference to accompanying drawing, embodiments of the present invention are described.And the present invention is not by the restriction of this embodiment.
(embodiment 1)
Fig. 1 is the summary construction diagram of the hot-water supply of embodiments of the present invention 1.
As shown in Figure 1, the hot-water supply of present embodiment, uses heat pump assembly 30 as heater.Heat pump assembly 30 has refrigerant loop 3.
In addition, as shown in Figure 1, the hot-water supply of present embodiment comprises heat pump unit 1, tank unit (tankunit) 2 and carries out the control device 50 of control of hot-water supply.Heat pump unit 1 and tank unit 2 utilize connecting pipings 23 to be interconnected.Present embodiment uses from the water of running water pipe supply as the structure of thermal medium.
Be accommodated with formation heat pump assembly 30 at heat pump unit 1 and carry out a part for the refrigerant loop 3 circulated in internal refrigeration storage agent.The thermal medium loop 4 that the part of refrigerant loop 3 and thermal medium carry out circulating is accommodated with in tank unit 2.
The compressor 5 that refrigerant loop 3 compresses cold-producing medium, the radiator 8 carrying out heat exchange between cold-producing medium with thermal medium, the decompressor 6 reduced pressure to cold-producing medium and the evaporimeter 7 carrying out heat exchange between cold-producing medium with air are connected annularly by refrigerant piping successively and form.Radiator 8 is configured in tank unit 2, and compressor 5, decompressor 6, evaporimeter 7 are configured in heat pump unit 1.And, such as use electric expansion valve as decompressor 6.In addition, the Air Blast fan 9 for blowing to evaporimeter 7 is configured in heat pump unit 1.
The thermal medium loop 4 that thermal medium carries out circulating is bottoms of tank 11 of storage thermal medium, the top of the supplying hot water heat exchanger 13 carrying out heat exchange between water and thermal medium, radiator 8, tank 11 (be upper side in Fig. 1, also can top) be connected annularly by thermal medium pipe arrangement successively and form.
Radiator 8 comprises the refrigerant flow path 8a of flow of refrigerant and thermal medium stream (heating part) 8b of thermal medium flowing.In addition, supplying hot water heat exchanger 13 comprises thermal medium stream 13a and current road 13b.As radiator 8, supplying hot water heat exchanger 13, such as, use board-like heat exchanger, the heat exchanger of Double-pipe type.
Thermal medium loop 4 between radiator 8 and the top of tank 11 is configured with the thermistor 22e of the temperature detecting thermal medium.In addition, the thermal medium loop 4 between supplying hot water heat exchanger 13 and the bottom of tank 11 is configured with the thermistor 22f of the temperature detecting thermal medium.
In addition, the thermal medium loop 4 between tank 11 and supplying hot water heat exchanger 13 is configured with the pump 14 for making thermal medium circulate.And the thermal medium loop 4 between tank 11 and supplying hot water heat exchanger 13 is configured with transfer valve 15.Transfer valve 15 makes the loop direction of thermal medium reverse as switching device shifter by the stream switching thermal medium loop 4.That is, utilize transfer valve 15, the loop direction that thermal medium flows out from the top of tank 11 and the loop direction that flows into from the bottom of tank 11 and thermal medium flow into from the top of tank 11 from the bottom outflow of tank 11 can be switched.
Transfer valve 15 is provided with entrance or outlet in 4 directions, can switch the loop direction of thermal medium.As shown in Figure 1, transfer valve 15 can switch the stream represented by solid line and the stream be illustrated by the broken lines.
Supplying hot water loop 16 is the loops of flowing to the first-class supplying hot water terminal 17 of tap, bathtub and shower from the water of running water pipe.In supplying hot water heat exchanger 13, water and thermal medium carry out heat exchange, generating hot water.The hot water generated flows in supplying hot water loop 16, supplies from supplying hot water terminal 17 to user.Supplying hot water loop 16 between supplying hot water heat exchanger 13 and supplying hot water terminal 17 is configured with the thermistor 22d of the temperature detecting water and detects the flow switch 10 of flowing of water.
In addition, oral siphon 18 from supplying hot water loop 16 branch of leaning on upstream side than supplying hot water heat exchanger 13 at the flow direction of the water in supplying hot water loop 16, and is connected with the bottom of tank 11.Oral siphon 18 has the pressure-reducing valve 19 that the pressure of the water flowed at oral siphon 18 is reduced.Time more than the pressure drop certain value of inside, thermal medium loop 4, the part flowing into the water in supplying hot water loop 16 flows to oral siphon 18, flow into the bottom of tank 11 via pressure-reducing valve 19.That is, the hot-water supply of present embodiment uses and flow into the water in thermal medium loop 4 as thermal medium from oral siphon 18.And, also can replace pressure-reducing valve 19, use and the stream of oral siphon 18 can be closed or open stop valve.
And, by connecting the pipe arrangement 21 with relief valve (safety valve) 20 on the top of tank 11, form the pressure removing device that the pressure in thermal medium loop 4 is reduced.
In addition, thermistor 22a, 22b, 22c of the temperature of the thermal medium measured in tank 11 is provided with at tank 11.
Heat pump unit 1 and tank unit 2 utilize connecting pipings 23 to be interconnected.In the present embodiment, the radiator 8 carrying out heat exchange between cold-producing medium and thermal medium is configured with in the inside of tank unit 2.That is, connecting pipings 23 is the refrigerant pipings of the part forming refrigerant loop 3.
Heat pump unit 1 and tank unit 2 utilize connecting pipings 23 to be interconnected when the arranging of hot-water supply.And the lead-in wire be connected with heat pump unit 1 by remote controller (not shown) and the power line be connected with tank unit 2 by heat pump unit 1 also connect when the arranging of hot-water supply.
After arranging hot-water supply, when making relief valve 20 for open state under state supplying hot water terminal 17 closed, water flows into supplying hot water loop 16, flows through oral siphon 18 by pressure-reducing valve 19, flow into tank 11.Afterwards, water also flow into thermal medium loop 4, and tank 11 and thermal medium loop 4 are full of by water.Whether thermal medium loop 4 and tank 11 are full of than water, whether can flow out judgement from pipe arrangement 21 by water.That is, if water flows out, then the inside of thermal medium loop 4 and tank 11 is full of than water.The hot-water supply of present embodiment is used in after oral siphon 18 flows and flow into the water in tank 11 and thermal medium loop 4 as thermal medium.
And after tank 11 and thermal medium loop 4 are full of by thermal medium (water), when the thermal medium of the inside in thermal medium loop 4 reduces, the pressure of the inside in tank 11 and thermal medium loop 4 reduces.When the pressure of the inside in tank 11 and thermal medium loop 4 is reduced to more than certain value, the water flowing into supplying hot water loop 16 flows in oral siphon 18, and automatically flow into the inside of tank 11.Thus, the user oneself of hot-water supply is not needed to carry out supplementing of thermal medium.
In addition, the water flowed into supplying hot water loop 16 from running water pipe flows to supplying hot water terminal 17 because of the pressure of water that flows running water pipe.Generally speaking, high by the pressure of the water of pump 14 force feed at pressure (hydraulic pressure) ratio of the water of running water pipe flowing.Therefore, it is possible to the water yield of the hot water flowed out from supplying hot water terminal 17 ensured necessarily, improve the comfortableness of user.
Then, the action of the hot-water supply of present embodiment is described.
Add in heat run what heat the thermal medium being stored in tank 11, control device 50 makes heat pump assembly 30 action, to make the cold-producing medium of HTHP flow into radiator 8, in addition, control transfer valve 15 and pump 14, circulate to make the direction of the solid arrow of thermal medium shown in Fig. 1.Thus, cold-producing medium and thermal medium carry out heat exchange at radiator 8.
Now, thermal medium is as shown in Figure 1 in the flow path that the solid line of transfer valve 15 represents.Thus, thermal medium flows through the bottom of tank 11, transfer valve 15, pump 14, transfer valve 15, supplying hot water heat exchanger 13, radiator 8 successively, flow into tank 11 from the top of tank 11.
In addition, control device 50 makes the compressor 5 of heat pump assembly 30 start, by refrigerant compression to high pressure.The cold-producing medium being become HTHP by compressing, by connecting pipings 23, flow into the radiator 8 of the inside being configured in tank unit 2.
In radiator 8, the cold-producing medium becoming the gas phase state of HTHP and the thermal medium flowed in thermal medium loop 4 by pump 14 force feed carry out heat exchange.Thus, thermal medium is heated, and generates the thermal medium of high temperature.The thermal medium of high temperature flows in thermal medium loop 4 after radiator 8 flows out, and flow into tank 11 from the top of tank 11.
Cold-producing medium, by carrying out heat exchange and condensation at radiator 8 and thermal medium, becomes gas-liquid two-phase state or the liquid condition of low-temp low-pressure.Afterwards, cold-producing medium utilizes decompressor 6 be depressurized and expand, and flow into evaporimeter 7.In the evaporator 7, cold-producing medium carries out heat exchange with the air of being blown by Air Blast fan 9, evaporates and becomes gas phase state.This cold-producing medium becoming gas phase state flow into compressor 4 again.
Like this, cold-producing medium circulates in refrigerant loop 3, and in addition, thermal medium circulates in thermal medium loop 4, carries out heat exchange by cold-producing medium in radiator 8 and thermal medium, is heated at the thermal medium of the internal storage of tank 11.And control device 50 also can control the rotating speed of heat pump assembly 30 and pump 14, become setting to make the temperature of the thermal medium detected by thermistor 22e.
To be heated by radiator 8 and the thermal medium becoming high temperature flow into tank 11 from the top of tank 11.Thus, the thermal medium of high temperature is stored in tank 11.Thus, the temperature being stored in the thermal medium in tank 11 is, it is higher that the top of tank 11 becomes temperature, and it is lower that the bottom of tank 11 becomes temperature.
That is, the thermal stratification of thermal medium is formed in the inside of tank 11.The chain-dotted line of the inside of the tank 11 shown in Fig. 1 represents this thermal stratification, and right more becomes high temperature.As shown in Figure 1, the migration region that the thermal medium of tank 11 inside is divided into the high-temperature region of roughly certain temperature, temperature sharply declines, low temperature region.
Adding the thermal medium that the thermal medium flowed out from the bottom of tank 11 in heat run is low temperature region.Thus, until whole thermal mediums of tank 11 inside become high temperature, the temperature flowing into the thermal medium of radiator 8 rises suppressed.When the heat medium temperature flowing into radiator 8 is low, the running efficiency of heat pump assembly 30 is high.Thus, the running efficiency of heat pump assembly 30 is improved.
Like this, adding in heat run, in radiator 8, cold-producing medium and thermal medium carry out heat exchange, generate the thermal medium of high temperature.
Herein, control device 50 controls transfer valve 15 to make the flow direction adding refrigerant flow path 8a in heat run relative with the flow direction of thermal medium stream 8b.That is, relative with the variations in temperature of the thermal medium flowed at thermal medium stream 8b in the variations in temperature of the cold-producing medium of refrigerant flow path 8a flowing.Cold-producing medium flow into refrigerant flow path 8a under the state that temperature is high, carries out heat exchange with thermal medium, and becomes lower than temperature during inflow and flow out from refrigerant flow path 8a.On the other hand, thermal medium flow into thermal medium stream 8b under low-temperature condition, carries out heat exchange with cold-producing medium, and becomes high temperature and flow out from thermal medium stream 8b compared with during inflow.Thus, temperature difference is being guaranteed to carry out heat exchange under the state more than necessarily by cold-producing medium and thermal medium.Thus, the heat exchanger effectiveness in radiator 8 is improved.Therefore, the running efficiency of heat pump assembly 30 improves.
Then, for by hot water supply to supplying hot water terminal 17 supplying hot water running its action is described.Supplying hot water running is by utilizing the thermal medium being stored in the high temperature of tank 11 inside that water heating is generated the running being used for the hot water supplied to supplying hot water terminal 17.
When supplying hot water terminal 17 is open by user, the water of inside, supplying hot water loop 16 flows out from supplying hot water terminal 17.When flow switch 10 detects the flowing of the water in supplying hot water loop 16, start supplying hot water running.And, supplying hot water running also can such as by user from remote controller (not shown) carry out indicating and.
The water heating of flowing in supplying hot water loop 16 and generating hot water, and from the supplying hot water running of supplying hot water terminal 17 supplying hot water, control device 50 controls transfer valve 15 and pump 14, circulates to make the direction of the dotted arrow of thermal medium shown in Fig. 1.Thus, thermal medium and water carry out heat exchange in supplying hot water heat exchanger 13.And control device 50 also can the rotating speed of control pump 14, becomes setting to make the temperature with thermistor 22d detects.
In supplying hot water running, control device 50 control pump 14 and transfer valve 15, flow to make the direction shown in the dotted arrow of thermal medium shown in Fig. 1.Thus, the thermal medium being stored in the high temperature on the top in tank 11 flows, by flowing into supplying hot water heat exchanger 13 after radiator 8 after the top of tank 11 is flowed out thermal medium loop 4.The thermal medium flowing into supplying hot water heat exchanger 13 with flow through supplying hot water loop 16 and the water flowing into supplying hot water heat exchanger 13 carries out heat exchange.Thus, hot water is produced.The hot water generated flows in supplying hot water loop 16, and flows out from supplying hot water terminal 17.
Herein, supplying hot water heat exchanger 13 is configured to make the flow direction of thermal medium stream 13a relative with the flow direction of supplying hot water stream 13b in supplying hot water running.That is, relative with the variations in temperature of the water flowed at supplying hot water stream 13b in the variations in temperature of the thermal medium of thermal medium stream 13a flowing.Thermal medium flow into thermal medium stream 13a under the state that temperature is high, carries out heat exchange with water, and becomes lower than temperature during inflow and flow out from thermal medium stream 13a.On the other hand, water flow into supplying hot water stream 13b under the state that temperature is low, carries out heat exchange with thermal medium, and becomes higher than temperature during inflow and flow out from supplying hot water stream 13b.Thus, thermal medium and water carry out heat exchange under temperature difference ensures the state necessarily.Thus, the heat exchanger effectiveness in supplying hot water heat exchanger 13 improves.
In supplying hot water heat exchanger 13, carry out heat exchange with water and the thermal medium that temperature reduces flows through transfer valve 15, pump 14, transfer valve 15, flow into tank 11 from bottom.Thus, when carrying out supplying hot water running, in the inside of tank 11, the amount of the thermal medium in low temperature region increases.Like this, in supplying hot water heat exchanger 13, heat exchange is carried out with water and the thermal medium that temperature reduces flow into low temperature region from the bottom of tank 11.Therefore, it is possible to maintain the thermal stratification of tank 11 inside, and water is heated.
By the loop direction utilizing switching device shifter to switch thermal medium, maintain the thermal stratification of the thermal medium of tank 11 inside, and implement supplying hot water running and add heat run.Thereby, it is possible to improve the running efficiency of heat pump assembly 30.In addition, the temperature of the hot water supplied to supplying hot water terminal 17 can be regulated.
And such as when user utilizes remote controller to control the temperature of hot water flowed out from supplying hot water terminal 17, control device 50 can the rotating speed of control pump 14, with the temperature making the temperature of the hot water detected by thermistor 22d become setting.Thus, the hot water of the temperature of user's setting is supplied from supplying hot water terminal 17.In addition, when supplying hot water terminal 17 has temp. control function, do not need the rotating speed of control pump 14 to regulate the temperature of the hot water of generation, as long as supply the hot water of the temperature of regulation to supplying hot water terminal 17.
Like this, transfer valve 15 can be utilized to switch the loop direction of thermal medium.That is, adding in heat run, thermal medium flows through the top of the bottom of tank 11, transfer valve 15, pump 14, transfer valve 15, supplying hot water heat exchanger 13, radiator 8, tank 11 successively.On the other hand, in supplying hot water running, thermal medium flows through the bottom of the top of tank 11, radiator 8, supplying hot water heat exchanger 13, transfer valve 15, pump 14, transfer valve 15, tank 11 successively.
Thus, when control device 50 is implemented to add heat run, in radiator 8, cold-producing medium and thermal medium relatively flow, and heat exchanger effectiveness improves thus.And then when supplying hot water running implemented by control device 50, in supplying hot water heat exchanger 13, thermal medium and aqueous phase flow over the ground, and heat exchanger effectiveness improves thus.Thereby, it is possible to realize the energy-saving of hot-water supply.
In addition, owing to utilizing a thermal medium loop 4 and a pump 14, thermal medium can flow at different loop directions, so can improve the running efficiency of hot-water supply, and can realize miniaturization and the cost degradation of hot-water supply.In addition, the number of pump 14 is cut down, the noise that can realize producing because of pump 14 action, the reduction of vibration.
In addition, the hot-water supply of present embodiment is configured with pump 14 in the inside of tank unit 2.Thereby, it is possible to the vibration preventing compressor 5 action and produce and pump 14 action and the resonance of the vibration produced.Thus, noise is reduced, and cut down the use amount of acoustic material, the cost degradation of hot-water supply can be realized.
And transfer valve 15 is more cheap than pump 14, make the control circuit of transfer valve 15 action also cheap than making the control circuit of pump 14 action.Thus, when comparing use two pumps 14 to the situation making thermal medium circulate with when using pump 14 and transfer valve 15 to the situation making thermal medium circulate, and thermal medium circulation is made to be low cost with pump 14 and transfer valve 15.
Then, the heating by making heat pump assembly 30 action carry out thermal medium is described, and thermal medium is circulated, carry out the supplying hot water auxiliary rotating to supplying hot water terminal 17 supplying hot water.
When carrying out supplying hot water running under the state that the thermal medium in the high-temperature region of tank 11 inside is few, even if utilize the heat exchange of thermal medium and the water carried out at supplying hot water heat exchanger 13, the water that also there is flowing in supplying hot water loop 16 can not fully by situation about heating.
Based on the detected value of the thermistor 22a ~ 22c being arranged on tank 11, control device 50 can detect that the thermal medium in the high-temperature region of tank 11 inside is fewer than setting.Under the state that thermal medium in high-temperature region is fewer than setting, when needing to supplying hot water terminal 17 supplying hot water, the supplying hot water auxiliary rotating of the heating of the heating that control device is implemented to carry out the thermal medium utilizing heat pump assembly 30 to realize concurrently and the water that utilizes thermal medium to realize.And the setting in this situation can set according to the design load of the hot-water supplies such as the lift of the thermal capacity can stored at tank 11, pump 14.
And supplying hot water auxiliary rotating also can carry out indicating implementing from remote controller by user.
In supplying hot water auxiliary rotating, control device 50 comprises heat pump assembly 30, pump 14 and transfer valve 15.In supplying hot water auxiliary rotating, cold-producing medium circulates in the direction of the solid arrow of the inside of refrigerant loop 3 shown in Fig. 1.Thermal medium circulates in the direction of the dotted arrow of inside shown in Fig. 1 in thermal medium loop 4.That is, thermal medium flows through the bottom of the top of tank 11, radiator 8, supplying hot water heat exchanger 13, transfer valve 15, pump 14, transfer valve 15, tank 11 successively.
During supplying hot water auxiliary rotating and supplying hot water operate, the loop direction of thermal medium is identical.Flow into the water in supplying hot water loop 16 from running water pipe, in supplying hot water heat exchanger 13, carry out heat exchange with thermal medium and become the hot water of set point of temperature, and flowing to supplying hot water terminal 17.
Like this, can heat the thermal medium flow into before supplying hot water heat exchanger 13 with radiator 8.Thus, even if when the thermal medium in high-temperature region is few, the temperature of the thermal medium flowing into supplying hot water heat exchanger 8 can be made to increase, and make the thermal medium of heating flow into supplying hot water heat exchanger 13.
Thereby, it is possible to water heating generating hot water in supplying hot water heat exchanger 13, the hot-water supply that usability is high can be realized.
And when implementing supplying hot water auxiliary rotating, preferred radiator 8 and supplying hot water heat exchanger 13 are configured in same enclosure interior.Thereby, it is possible to reduce the heat (radiation loss) dispelled the heat from the thermal medium loop 16 between radiator 8 and supplying hot water heat exchanger 13.
In addition, when the hot water water yield flowed out from supplying hot water terminal 17 is large, the situation that the heat having in supplying hot water heat exchanger 13 thermal medium liberated heat to absorb than thermal medium in heat pump assembly 30 is many.Thus, when implementing supplying hot water auxiliary rotating, compared with not carrying out the situation of supplying hot water auxiliary rotating, preferably make the heating efficiency large (such as 20kW) of heat pump assembly 30.
And the state that the thermal medium in the high-temperature region of tank 11 inside is fewer than setting detected at control device 50 under, when implementing supplying hot water auxiliary rotating, preferred control device 50 carries out controlling to make the heating efficiency of heat pump assembly 30 maximum.
And, in supplying hot water auxiliary rotating, because the flow direction of cold-producing medium that flows at refrigerant flow path 8a and the flow direction of thermal medium that flows at thermal medium stream 8b become same direction, so the running efficiency of heat pump assembly 30 reduces.Thus, remote controller preferably has the selection unit whether selection implements supplying hot water auxiliary rotating automatically.That is, preferably have and forbid that hot-water supply automatically implements the unit of supplying hot water auxiliary rotating.Thus, user can select whether to implement to operate with supplying hot water compared with the low supplying hot water auxiliary rotating of running efficiency.Thereby, it is possible to improve the usability of hot-water supply.
In addition, the hot-water supply of present embodiment can use the water comprising more hardness components.Its reason is below described.
The Japan that landform length that is dangerously steep, rivers and creeks is short in the ordinary course of things, the amount of hardness components of dissolving in the water of rivers and creeks flowing is few, is that the situation of soft water is more from the water of running water pipe supply.And, different according to region, also there is the place that hardness components in water is many.In addition, there is the situation that underground water comprises more hardness components.
On the other hand, length that is mild in landform, rivers and creeks long, such as Europe or Chinese, the amount of the hardness components of dissolving in rivers and creeks circulating water is many, and comparing the water supplied from running water pipe with Japan is that the situation of hard water is more.
The hardness components such as more calcium carbonate are such as dissolved with in this hard water.This hardness components temperature had along with water uprises and solubility reduces and the character separated out as incrustation scale.Thus, in the high-temperature portion of hot-water supply, incrustation scale is separated out and is attached on stream, and stream is blocked sometimes.In addition, even if stream does not block, when stream makes attachment incrustation scale, the pressure loss also increases, and the running efficiency of hot-water supply worsens.
Such as, as the calcium carbonate (CaCO of one of hardness components
3) solubility, as shown in Figure 2, have when water temperature rise time reduce tendency.That is, water more becomes high temperature, and the hardness components in water is easier to be attached on stream as incrustation scale precipitation.
In addition, comprise the situation of the water of more hardness components at sustainable supply under, the precipitation of incrustation scale and the attachment of incrustation scale is produced continuously, so incrustation scale easily deposits.Thus, the precipitation of incrustation scale among hot-water supply, easily become the highest temperature radiator 8 (heater) near thermal medium stream 8b produce.In addition, because the many water sustainable supply of hardness components easily to produce the deposition of incrustation scale to thermal medium stream 8b.
On the other hand, the hot-water supply of present embodiment makes thermal medium loop 4 for loop circuit.Therefore, the pressure increase in thermal medium loop 4, discharging a small amount of thermal medium from pipe arrangement 21, supplements new water to thermal medium loop 4.
Thus, due to the thermal medium circulated in thermal medium loop 4, alternatively do not use for a long time, new hardness components can not be supplied, so precipitation and the deposition of the incrustation scale in thermal medium stream 8b can be suppressed.
And, always fresh water is supplied to the supplying hot water stream 13b of supplying hot water heat exchanger 13.Herein, the maximum temperature to the hot water of tap, bathtub, first-class supplying hot water terminal 17 supply of shower is about 50 degree.Thus, in the supplying hot water heat exchanger 13 low with radiator 8 C.T, not easily produce the precipitation of incrustation scale.
In addition, oral siphon 18, from than supplying hot water loop 16 branch of supplying hot water heat exchanger 13 by upstream side, is connected with the bottom of tank 11, and is configured with pressure-reducing valve 19 at oral siphon 18.When by making hot-water supply operate, thermal medium expands, during the pressure increase of inside, thermal medium loop 4, a part for dilated thermal medium is released from the pipe arrangement 21 with relief valve 20.When the amount of the thermal medium of inside, thermal medium loop 4 reduces, when the pressure of inside, thermal medium loop 4 is reduced to more than certain value, water flow into oral siphon 18 from supplying hot water loop 16, to thermal medium loop 4 supplementing water (thermal medium).Thus, the pressure of inside, thermal medium loop 4 regulates automatically.Therefore, user does not need supplemental heat medium.And, when replacing pressure-reducing valve 19 to use stop valve, by making stop valve open, the thermal medium loop 4 of more than certain value can be reduced to for feedwater (thermal medium) to pressure.
And, be configured with compressor 5, decompressor 6, evaporimeter 7, Air Blast fan 9 at the heat pump unit 1 of present embodiment.In addition, heat pump unit 1 is connected with the connecting pipings 23 of tank unit 2 by flow of refrigerant.Thus, heat pump unit 1 is identical structure with the off-premises station of air conditioner.Thereby, it is possible to realize the off-premises station of air conditioner and sharing of heat pump unit 1.And when cold-producing medium is normally used R410A cold-producing medium in air-conditioning, the connection of the connecting pipings 23 during construction becomes easy.
In addition, the connecting pipings 23 being undertaken circulating by cold-producing medium due to heat pump unit 1 and tank unit 2 is connected, so the cold-producing medium of connecting pipings 23 inside can not freeze, does not also need in addition to carry out freezing prevention running etc.
(embodiment 2)
Fig. 3 is the summary construction diagram of the hot-water supply of embodiments of the present invention 2.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
The hot-water supply of present embodiment has the thermal medium loop 4 that is formed by connecting annularly, top of the bottom of tank 11, radiator 8, supplying hot water heat exchanger 13, tank 11.In addition, the thermal medium loop 4 between the bottom of tank 11 and radiator 8 is configured with pump 14 and transfer valve 15.
When implementing to add heat run, thermal medium in thermal medium loop 4 successively in the bottom of tank 11, the circulation of the top of transfer valve 15, pump 14, radiator 8, supplying hot water heat exchanger 13, tank 11.In addition, when implementing supplying hot water running, thermal medium in thermal medium loop 4 successively on the top of tank 11, the circulation of the bottom of supplying hot water heat exchanger 13, radiator 8, transfer valve 15, pump 14, transfer valve 15, tank 11.
According to this structure, when implementing supplying hot water running, first the thermal medium of the high temperature flowed out from the top of tank 11 flow into supplying hot water heat exchanger 13, to the water heating of flowing in supplying hot water loop 16.Thereby, it is possible to reduce the heat (radiation loss) dispelled the heat from the thermal medium loop 4 between the top and supplying hot water heat exchanger 13 of tank 11.
(embodiment 3)
Fig. 4 is the summary construction diagram of the hot-water supply of embodiments of the present invention 3.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
The hot-water supply of present embodiment has the heat pump unit 1 being configured with heat pump assembly 30.Refrigerant loop 3 and Air Blast fan 9 is configured with in the inside of heat pump unit 1.Refrigerant loop 3 is the compressors 5 compressed cold-producing medium, the radiator 8 carrying out heat exchange between cold-producing medium and thermal medium, the decompressor 6 that cold-producing medium is reduced pressure, the evaporimeter 7 that carries out heat exchange between cold-producing medium and air are formed by connecting annularly by refrigerant piping successively.As cold-producing medium, use carbon dioxide.In addition, the connecting pipings 24 that heat pump unit 1 and tank unit 2 utilize thermal medium to carry out circulating is interconnected.That is, connecting pipings 24 forms the part in thermal medium loop 4.
As in refrigerant loop 3 circulation cold-producing medium, can use global warming up trend (GlobalWarmingPotential) be zero (0) carbon dioxide.The HFC cold-producing medium always used with R410A or R32 etc. compares, and the critical point temperature of carbon dioxide is low.Thus, when being used as cold-producing medium by carbon dioxide, form the supercritical steam cycle of the on high-tension side pressure postcritical of refrigerant loop 3.
Thus, compare with HFC cold-producing mediums such as R410A or R32 and thermal medium can be heated to high temperature (such as 85 degree).In addition, owing to thermal medium can be heated to high temperature, so the heat be stored in tank 11 can be made to increase, and the miniaturization of tank 11 can be realized.
On the other hand, when being used as cold-producing medium by carbon dioxide, the on high-tension side pressure of refrigerant loop 3 uprises (such as 8MPa) compared with using the situation of HFC cold-producing medium.Thus, the resistance to pressure improving refrigerant piping is needed.
The hot-water supply of present embodiment, is configured in heat pump unit 1 by radiator 8, and the connecting pipings 24 that heat pump unit 1 is undertaken circulating by thermal medium with tank unit 2 is connected.Thus, flow system cryogen is not had at connecting pipings 24.Thus, do not need the resistance to pressure of connecting pipings 23 is excessively increased.Thereby, it is possible to make construction operation when arranging hot-water supply easy.
(embodiment 4)
Fig. 5 is the summary construction diagram of the hot-water supply of embodiments of the present invention 4.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
The hot-water supply of present embodiment comprises heat pump assembly 30, thermal medium loop 4, supplying hot water loop 16, oral siphon 18, is configured with the integrated unit 25 of pipe arrangement 21.
Thereby, it is possible to shorten engineering time when arranging hot-water supply.In addition, owing to there is no connecting pipings, so the heat radiation from connecting pipings can be prevented.In addition, radiator 8 and supplying hot water heat exchanger 13 can be made closely to configure, the radiation loss from thermal medium loop 4 can be reduced.
(embodiment 5)
Fig. 6 is the summary construction diagram of the hot-water supply of embodiments of the present invention 5.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
The hot-water supply of present embodiment, as shown in Figure 6, comprises supply pipe 27 that be connected with the top of tank 11, that have the stop valve 26 stream can closed and open.
In addition, tank 11 has the liquid level sensor 28 detected the amount of the thermal medium be stored in tank 11.Control device 50 utilizes liquid level sensor 28 to detect the minimizing of the amount of thermal medium, and shows on a remote control, and can notify user.
And the loop circuit that thermal medium loop 4 is tanks 11, transfer valve 15, pump 14, supplying hot water heat exchanger 13, radiator 8 connect annularly and complete.Thus, the water that hardness components is many can not flow into radiator 8.Thereby, it is possible to suppress precipitation and the deposition of incrustation scale.And the thermal medium loop 4 between radiator 8 and the top of tank 11 is configured with the expansion drum 29 of the pressure regulating inside, thermal medium loop 4 when thermal medium expands.
When the amount of thermal medium reduces, make stop valve 26 open, can inside supplemental heat medium from from supply pipe 27 to tank 11.
In thermal medium loop 4, anti-icing fluid circulates as thermal medium.As thermal medium, principal component can be water, in addition, also can be have the specific heat higher than water or the thermal medium of pyroconductivity.Such as, the gallium-indium-tin alloy (Galinstan) of the eutectic alloy of gallium, indium, tin can be used as.Thereby, it is possible to prevent the thermal medium flowed in thermal medium loop 4 from freezing.
(embodiment 6)
Fig. 7 is the summary construction diagram of the hot-water supply of embodiments of the present invention 6.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
The hot-water supply of present embodiment has the pump of reversible pump 31 as force feed thermal medium.
Reversible pump 31 has the function making to reverse at the loop direction of the thermal medium of thermal medium loop 4 internal flow.That is, reversible pump 31 works as the switching device shifter making the loop direction of thermal medium reverse.Thus, transfer valve is not used just can to change the loop direction of thermal medium.
Adding in heat run, control device 50 controls reversible pump 31, circulates to make the direction of the solid arrow of thermal medium shown in Fig. 7.Thermal medium in thermal medium loop 4 flows through the top of the bottom of tank 11, reversible pump 31, supplying hot water heat exchanger 13, radiator 8, tank 11 successively.
Now, control device 50 controls heat pump assembly 30, flow into radiator 8 to make the cold-producing medium of HTHP.Thus, the cold-producing medium and the thermal medium that flow into radiator 8 carry out heat exchange, generate the thermal medium of high temperature.The thermal medium generated flows in thermal medium loop 4, flow in tank 11 from the top of tank 11.Thus, at the thermal medium of the internal storage high temperature of tank 11.And control device 50 also can control reversible pump 31 and heat pump assembly 30, become setting to make the detected value of thermistor 22e.
In supplying hot water running, control device 50 controls reversible pump 31, circulates to make the direction of the dotted arrow of thermal medium shown in Fig. 7.Thermal medium in thermal medium loop 4 flows through the bottom of the top of tank 11, radiator 8, supplying hot water heat exchanger 13, reversible pump 31, tank 11 successively.
The thermal medium of the internal flow in thermal medium loop 4 carries out heat exchange with the water flowed in supplying hot water loop 16 in supplying hot water heat exchanger 13.Thus, hot water is produced.
Such as, when user utilizes remote controller to set the temperature of the hot water flowed out from supplying hot water terminal 17, control device 50 utilizes thermistor 22e to detect the temperature flowing into supplying hot water heat exchanger 13, the rotating speed of reversible pump 31 is controlled, with the temperature making the temperature of the hot water detected by thermistor 22d become setting based on detected value.
And, when supplying hot water terminal 17 can regulate temperature, control device 50 does not need the rotating speed in order to regulate the temperature of the hot water supplied to supplying hot water terminal 17 suitably to control reversible pump 31, as long as supplied to supplying hot water terminal 17 by hot water more than set point of temperature.
Like this, by the loop direction utilizing reversible pump 31 to switch thermal medium, a thermal medium loop 4 and a reversible pump 31 can be utilized to implement to add both heat run and supplying hot water running.
(embodiment 7)
Fig. 8 is the summary construction diagram of the hot-water supply of embodiments of the present invention 7.Add identical symbol to the place identical with other embodiment in the present embodiment, the description thereof will be omitted.
As shown in Figure 8, the thermal medium loop 4 of the hot-water supply of present embodiment comprises the primary flow path 4a being provided with the radiator 8 and secondary stream 4b being provided with supplying hot water heat exchanger 13.
Secondary stream 4b connects the branch point Q in the thermal medium loop 4 between the branch point P in the thermal medium loop 4 be arranged between radiator 8 and transfer valve 15 and the top being arranged on radiator 8 and tank 11.That is, secondary stream 4b has the function as the bypass making radiator 8 bypass.
And preferred thermistor 22f is arranged on the thermal medium loop 4 between branch point P and transfer valve 15, thermistor 22e is arranged on the thermal medium loop 4 between the top of branch point Q and tank 11.And, when pump 14 are reversible pumps 31, do not arrange transfer valve 15, fulcrum P is arranged on the thermal medium loop 4 between radiator 8 and reversible pump 31.Now, thermistor 22f is preferably arranged between branch point P and reversible pump 31.
Be provided with in thermal medium loop 4 for making thermal medium optionally at the flow passage selector device (not shown) of the middle arbitrarily flowing of primary flow path 4a and secondary stream 4b.Thus, thermal medium loop 4, when making thermal medium in the situation that primary flow path 4a flows and making thermal medium flow at secondary stream 4b, has multiple circulation road.
Flow passage selector device can realize with multiple method.Such as, flow passage selector device can be realized by arranging the stop valve that can end stream at primary flow path 4a and secondary stream 4b.That is, when making thermal medium flow at primary flow path 4a, the 1st stop valve being arranged on primary flow path 4a is opened, and under the state that the 2nd stop valve being arranged on secondary stream 4b is closed, pump 14 is being operated.On the other hand, when making thermal medium flow at secondary stream 4b, under the state close making the 1st stop valve, the 2nd stop valve being arranged on secondary stream 4b closed, pump 14 is operated.In addition, such as flow passage selector device can be realized by arranging triple valve at branch point P or branch point Q.That is, when making thermal medium flow in primary flow path 4a, triple valve being switched to primary flow path 4a side, on the other hand, when making thermal medium flow in secondary stream 4b, triple valve being switched to secondary stream 4b side, pump 14 is operated.And, if flow passage selector device is configured to the middle arbitrarily flowing that thermal medium can be made at primary flow path 4a and secondary stream 4b, is then not limited to these modes, also can uses other method.
Adding in heat run, control device 50 is control pump 14, transfer valve 15, flow passage selector device respectively, circulates to make the direction of the solid arrow of thermal medium shown in Fig. 8.Thus, thermal medium flows to primary flow path 4a via the bottom of tank 11, transfer valve 15, pump 14, transfer valve 15 in thermal medium loop 4, is heated, and flow into the top of tank 11 in thermal medium stream 8b by heater 30.
In supplying hot water running, control device 50 control pump 14, transfer valve 15, flow passage selector device, circulate to make the direction of the dotted arrow of thermal medium shown in Fig. 8.Thus, thermal medium flows from the top of tank 11 to secondary stream 4b in thermal medium loop 4, utilizes supplying hot water heat exchanger 13 by after the heating of the water of flowing in supplying hot water loop 16, flow into the bottom of tank 11 via transfer valve 15, pump 14, transfer valve 15.
Like this, be provided with the primary flow path 4a being equipped with the radiator 8 and secondary stream 4b being equipped with supplying hot water heat exchanger 13 in thermal medium loop 4, separately use primary flow path 4a and secondary stream 4b, the radiation loss from thermal medium loop 4 can be reduced thus.That is, because control device 50 carries out controlling making adding in heat run thermal medium only in primary flow path 4a flowing, so can reduce the radiation loss of the thermal medium in supplying hot water heat exchanger 13.In addition, because control device 50 carries out controlling to make thermal medium in supplying hot water running only flow at secondary stream 4b, so can reduce the radiation loss of the thermal medium in radiator 8.In addition, a pump can be utilized, carry out the heating of the heating of thermal medium and the water to supplying hot water terminal 17 supply.Consequently, miniaturization, the cost degradation of hot-water supply can be realized.
(embodiment 8)
Fig. 9 is the summary construction diagram of the hot-water supply of embodiments of the present invention 8.
As shown in Figure 9, the hot-water supply of present embodiment uses heat pump assembly 30 as heater.Heat pump assembly 30 has refrigerant loop 3.
In addition, as shown in Figure 9, the hot-water supply of present embodiment comprises heat pump unit 1, tank unit 2 and carries out the control device 50 of control of hot-water supply.Heat pump unit 1 and tank unit 2 utilize connecting pipings 23 to be interconnected.Present embodiment uses from the water of running water pipe supply as the structure of thermal medium.
Cold-producing medium carries out the refrigerant loop 3 a circulated part in inside is accommodated with in heat pump unit 1.The thermal medium loop 4 that the part of refrigerant loop 3 and thermal medium carry out circulating is accommodated with in tank unit 2.
The compressor 5 that refrigerant loop 3 compresses cold-producing medium, the refrigerant flow path 60a being configured in threeway (three-way) heat exchanger 60, the decompressor 6 that cold-producing medium is reduced pressure and the evaporimeter 7 carrying out heat exchange between cold-producing medium with air utilize refrigerant piping to be connected annularly to form successively.Threeway heat exchanger 60 is configured in tank unit 2, and compressor 5, decompressor 6, evaporimeter 7 are configured in heat pump unit 1.And, such as use electric expansion valve as decompressor 6.In addition, the Air Blast fan 9 for blowing to evaporimeter 7 is configured in heat pump unit 1.
The thermal medium loop 4 that thermal medium carries out circulating is bottoms of tank 11 of storage thermal medium, the top of the thermal medium stream 60b being configured in threeway heat exchanger 60, tank 11 (be upper side in Fig. 9, also can top) utilizes thermal medium pipe arrangement to connect annularly to form successively.
Threeway heat exchanger 60 comprises refrigerant flow path 60a, thermal medium stream 60b, supplying hot water stream 60c.Supplying hot water stream 60c forms the part in the supplying hot water loop 16 of the water flow from running water pipe supply.Heat exchange is carried out between the water flowed in the thermal medium flowed in the cold-producing medium that threeway heat exchanger 60 flows in refrigerant flow path 60a, thermal medium stream 60b and supplying hot water stream 60c.That is, threeway heat exchanger 60 radiator that carries out heat exchange between cold-producing medium with thermal medium and the supplying hot water heat exchanger that carries out heat exchange between thermal medium with water become to be integrated and form.Refrigerant flow path 60a, thermal medium stream 60b, supplying hot water stream 60c are successively and row arrangement.
Thermal medium loop 4 between threeway heat exchanger 60 and the top of tank 11 is configured with the thermistor 22e of the temperature detecting thermal medium.In addition, the thermal medium loop 4 between threeway heat exchanger 60 and the bottom of tank 11 is configured with the thermistor 22f of the temperature detecting thermal medium.
In addition, the thermal medium loop 4 between tank 11 and threeway heat exchanger 60 is configured with the pump 14 for making thermal medium circulate.And the thermal medium loop 4 between tank 11 and supplying hot water heat exchanger 13 is configured with transfer valve 15.Transfer valve 15 makes the loop direction of thermal medium reverse as switching device shifter by the stream switching thermal medium loop 4.That is, utilize transfer valve 15, the loop direction that thermal medium flows out from the top of tank 11 and the loop direction that flows into from the bottom of tank 11 and thermal medium flow into from the top of tank 11 from the bottom outflow of tank 11 can be switched.
Transfer valve 15 is provided with entrance or outlet in 4 directions, can switch the loop direction of thermal medium.As shown in Figure 9, transfer valve 15 can switch the stream represented by solid line and the stream be illustrated by the broken lines.
Supplying hot water loop 16 is the loops of flowing to the first-class supplying hot water terminal 17 of tap, bathtub and shower from the water of running water pipe.In threeway heat exchanger 60, generating hot water.The hot water generated flows in supplying hot water loop 16, supplies from supplying hot water terminal 17 to user.Supplying hot water loop 16 between threeway heat exchanger 60 and supplying hot water terminal 17 is configured with the thermistor 22d of the temperature detecting water and detects the flow switch 10 of flowing of water.
In addition, oral siphon 18 from supplying hot water loop 16 branch of leaning on upstream side than supplying hot water heat exchanger 13 at the flow direction of the water in supplying hot water loop 16, and is connected with the bottom of tank 11.Oral siphon 18 has the pressure-reducing valve 19 that the pressure of the water flowed at oral siphon 18 is reduced.Time more than the pressure drop certain value of inside, thermal medium loop 4, the part flowing into the water in supplying hot water loop 16 flows to oral siphon 18, flow into the bottom of tank 11 via pressure-reducing valve 19.That is, the hot-water supply of present embodiment uses and flow into the water in thermal medium loop 4 as thermal medium from oral siphon 18.And, also can replace pressure-reducing valve 19, use and the stream of oral siphon 18 can be closed or open stop valve.
And, by connecting the pipe arrangement 21 with relief valve (safety valve) 20 on the top of tank 11, form the pressure removing device that the pressure in thermal medium loop 4 is reduced.
In addition, thermistor 22a, 22b, 22c of the temperature of the thermal medium measured in tank 11 is provided with at tank 11.
Heat pump unit 1 and tank unit 2 utilize connecting pipings 23 to be interconnected.In the present embodiment, the radiator 8 carrying out heat exchange between cold-producing medium and thermal medium is configured with in the inside of tank unit 2.That is, connecting pipings 23 is the refrigerant pipings of the part forming refrigerant loop 3.
Heat pump unit 1 and tank unit 2 utilize connecting pipings 23 to be interconnected when the arranging of hot-water supply.And the lead-in wire be connected with heat pump unit 1 by remote controller (not shown) and the power line be connected with tank unit 2 by heat pump unit 1 also connect when the arranging of hot-water supply.
After hot-water supply is set, when making relief valve 20 for open state under state supplying hot water terminal 17 enclosed, flow into supplying hot water loop 16 at the water of running water pipe flowing, flow in oral siphon 18 and pass through pressure-reducing valve 19, and flowing into tank 11.Afterwards, water also flow into thermal medium loop 4, and tank 11 and thermal medium loop 4 are full of by water.Whether thermal medium loop 4 and tank 11 are full of than water, whether can flow out judgement from pipe arrangement 21 by water.That is, if water flows out, then the inside of thermal medium loop 4 and tank 11 is full of than water.The hot-water supply of present embodiment is used in after oral siphon 18 flows and flow into the water in tank 11 and thermal medium loop 4 as thermal medium.
And after tank 11 and thermal medium loop 4 are full of by thermal medium (water), when the thermal medium of the inside in thermal medium loop 4 reduces, the pressure of the inside in tank 11 and thermal medium loop 4 reduces.When the pressure of the inside in tank 11 and thermal medium loop 4 is reduced to more than certain value, the water flowing into supplying hot water loop 16 flows in oral siphon 18, and automatically flow into the inside of tank 11.Thus, the user oneself of hot-water supply is not needed to carry out supplementing of thermal medium.
In addition, the water flowed into supplying hot water loop 16 from running water pipe flows to supplying hot water terminal 17 because of the pressure of water that flows running water pipe.Generally speaking, high by the pressure of the water of pump 14 force feed at pressure (hydraulic pressure) ratio of the water of running water pipe flowing.Therefore, it is possible to the water yield of the hot water flowed out from supplying hot water terminal 17 ensured necessarily, improve the comfortableness of user.
Then, the action of the hot-water supply of present embodiment is described.
That heats the thermal medium be stored in tank 11 adds in heat run, the mode that control device 50 flow into threeway heat exchanger 60 with the cold-producing medium of HTHP makes heat pump assembly 30 action, in addition, control transfer valve 15 and pump 14, circulate to make the direction of the solid arrow of thermal medium shown in Fig. 9.Thus, cold-producing medium and thermal medium carry out heat exchange in threeway heat exchanger 60.
Now, thermal medium is as shown in Figure 9 in the flow path represented by solid line of transfer valve 15.Thus, thermal medium flows through the bottom of tank 11, transfer valve 15, pump 14, transfer valve 15, threeway heat exchanger 60 successively, and flow into tank 11 from the top of tank 11.
In addition, control device 50 makes the compressor 5 of heat pump assembly 30 start, by refrigerant compression to high pressure.The cold-producing medium being become HTHP by compressing, by connecting pipings 23, flow into the threeway heat exchanger 60 being configured in tank unit 2 inside.
In threeway heat exchanger 60, the cold-producing medium becoming the gas phase state of HTHP and the thermal medium flowed in thermal medium loop 4 by pump 14 force feed carry out heat exchange.Thus, thermal medium is heated, and generates the thermal medium of high temperature.The thermal medium of high temperature flows in thermal medium loop 4 after radiator 8 flows out, and flow into tank 11 from the top of tank 11.
Cold-producing medium, by carrying out heat exchange and condensation at threeway heat exchanger 60 and thermal medium, becomes gas-liquid two-phase state or the liquid condition of low-temp low-pressure.Afterwards, cold-producing medium utilizes decompressor 6 be depressurized and expand, and flow into evaporimeter 7.In the evaporator 7, cold-producing medium carries out heat exchange with the air of being blown by Air Blast fan 9, evaporates and becomes gas phase state.This cold-producing medium becoming gas phase state flow into compressor 4 again.
Like this, cold-producing medium circulates at refrigerant loop 3, and in addition, thermal medium circulates in thermal medium loop 4, and in threeway heat exchanger 60, cold-producing medium and thermal medium carry out heat exchange, and the thermal medium being stored in tank 11 inside is thus heated.And control device 50 also can control the rotating speed of heat pump assembly 30 and pump 14, become setting to make the temperature of the thermal medium detected by thermistor 22e.
The thermal medium being become high temperature at threeway heat exchanger 60 by heating flow into tank 11 from the top of tank 11.Thus, the thermal medium of high temperature is stored in tank 11.Thus, the temperature being stored in the thermal medium in tank 11 is, it is higher that the top of tank 11 becomes temperature, and it is lower that the bottom of tank 11 becomes temperature.
That is, the thermal stratification of thermal medium is formed in the inside of tank 11.The chain-dotted line of tank 11 inside shown in Fig. 9 represents this thermal stratification, and more right side is more high temperature.As shown in Figure 9, the migration region that the thermal medium of tank 11 inside is divided into the high-temperature region of roughly uniform temperature, temperature sharply reduces, low temperature region.
Adding the thermal medium that the thermal medium flowed out from the bottom of tank 11 in heat run is low temperature region.Thus, before the thermal medium of tank 11 inside all becomes high temperature, the temperature flowing into the thermal medium of heat exchanger 8 rises suppressed.When the heat medium temperature flowing into radiator 8 is low, the running efficiency of heat pump assembly 30 is high.Thus, the running efficiency of heat pump assembly 30 is improved.
Like this, adding in heat run, in radiator 8, cold-producing medium and thermal medium carry out heat exchange, generate the thermal medium of high temperature.
Herein, control device 50 controls transfer valve 15, to make the flow direction adding refrigerant flow path 60a in heat run relative with the flow direction of thermal medium stream 60b.That is, relative with the variations in temperature of the thermal medium flowed at thermal medium stream 60b in the variations in temperature of the cold-producing medium of refrigerant flow path 60a flowing.Cold-producing medium flow into refrigerant flow path 60a under the state that temperature is high, carries out heat exchange with thermal medium, and becomes lower than temperature during inflow and flow out from refrigerant flow path 60a.On the other hand, thermal medium flow into thermal medium stream 60b under the state that temperature is low, carries out heat exchange with cold-producing medium, and becomes higher than temperature during inflow and flow out from thermal medium stream 60b.Thus, temperature difference is being guaranteed to carry out heat exchange under the state more than necessarily by cold-producing medium and thermal medium.Thus, the heat exchanger effectiveness in threeway heat exchanger 60 improves.Therefore, the running efficiency of heat pump assembly 30 improves.
Then, for by hot water supply to supplying hot water terminal 17 supplying hot water running its action is described.Supplying hot water running is by utilizing the thermal medium being stored in the high temperature of tank 11 inside that water heating is generated the running being used for the hot water supplied to supplying hot water terminal 17.
When supplying hot water terminal 17 is open by user, the water of inside, supplying hot water loop 16 flows out from supplying hot water terminal 17.When flow switch 10 detects the flowing of the water in supplying hot water loop 16, start supplying hot water running.And, supplying hot water running also can such as by user from remote controller (not shown) carry out indicating and.
The generating hot water to the water heating of flowing in supplying hot water loop 16 from the running of the supplying hot water of supplying hot water terminal 17 supplying hot water, control device 50 controls transfer valve 15 and pump 14, circulates to make the direction of the dotted arrow of thermal medium shown in Fig. 9.Thus, thermal medium and water carry out heat exchange at threeway heat exchanger 60.And control device 50 also can the rotating speed of control pump 14, becomes setting to make the temperature with thermistor 22d detects.
In supplying hot water running, control device 50 control pump 14 and transfer valve 15, flow to make the direction shown in the dotted arrow of thermal medium shown in Fig. 9.Thus, the thermal medium being stored in the high temperature on the top in tank 11 flows in thermal medium loop 4 after the top outflow of tank 11, and flow into threeway heat exchanger 60.The thermal medium flowing into threeway heat exchanger 60 flows in supplying hot water loop 16 and carries out heat exchange with the water flowing into threeway heat exchanger 60.Thus, hot water is produced.The hot water generated flows in supplying hot water loop 16, and flows out from supplying hot water terminal 17.
Herein, control device 50 controls transfer valve 15, to make the flow direction of thermal medium stream 60b in supplying hot water running relative with the flow direction of supplying hot water stream 60c.That is, relative with the variations in temperature of the water flowed at supplying hot water stream 60c in the variations in temperature of thermal medium stream 60b flowing heat medium.Thermal medium flow into thermal medium stream 60b in the state that temperature is high, carries out heat exchange with water, and becomes lower than temperature during inflow and flow out from thermal medium stream 60b.On the other hand, water flow into supplying hot water stream 60c under the state that temperature is low, carries out heat exchange with thermal medium, and becomes higher than temperature during inflow and flow out from supplying hot water stream 60c.Thus, thermal medium and water carry out heat exchange under temperature difference ensures the state necessarily.Thus, the heat exchanger effectiveness in threeway heat exchanger 60 improves.
In threeway heat exchanger 60, carry out heat exchange with water, the thermal medium that temperature reduces flows through transfer valve 15, pump 14, transfer valve 15, and flows into from bottom to tank 11.Thus, when carrying out supplying hot water running, in the inside of tank 11, the amount of the thermal medium in low temperature region increases.Like this, in threeway heat exchanger 60, heat exchange is carried out with water and the thermal medium that temperature reduces flow into low temperature region from the bottom of tank 11.Therefore, it is possible to maintain the thermal stratification of tank 11 inside, and water is heated.
By the loop direction utilizing switching device shifter to switch thermal medium, maintain the thermal stratification of the thermal medium of tank 11 inside, and implement supplying hot water running and add heat run.Thereby, it is possible to improve the running efficiency of heat pump assembly 30.In addition, the temperature of the hot water supplied to supplying hot water terminal 17 can be regulated.
And such as when user utilizes remote controller to control the temperature of hot water flowed out from supplying hot water terminal 17, control device 50 can the rotating speed of control pump 14, with the temperature making the temperature of the hot water detected by thermistor 22d become setting.Thus, the hot water of the temperature of user's setting is supplied from supplying hot water terminal 17.In addition, when supplying hot water terminal 17 has temp. control function, particularly do not need the rotating speed of control pump 14 to regulate the temperature of the hot water of generation, as long as supplied to supplying hot water terminal 17 by the hot water of set point of temperature.
Like this, transfer valve 15 can be utilized to switch the loop direction of thermal medium.That is, adding in heat run, thermal medium flows through the top of the bottom of tank 11, transfer valve 15, pump 14, transfer valve 15, threeway heat exchanger 60, tank 11 successively.On the other hand, in supplying hot water running, thermal medium flows through the bottom of the top of tank 11, threeway heat exchanger 60, transfer valve 15, pump 14, transfer valve 15, tank 11 successively.
Thus, when control device 50 is implemented to add heat run, in threeway heat exchanger 60, cold-producing medium and thermal medium relatively flow, and heat exchanger effectiveness improves thus.And when supplying hot water running implemented by control device 50, in threeway heat exchanger 60, thermal medium and aqueous phase flow over the ground, and heat exchanger effectiveness improves thus.Thereby, it is possible to realize the energy-saving of hot-water supply.
In addition, owing to utilizing a thermal medium loop 4 and a pump 14, thermal medium can flow at different loop directions, so can improve the running efficiency of hot-water supply, and can realize miniaturization and the cost degradation of hot-water supply.In addition, the number of pump 14 is cut down, the noise that can realize producing because of pump 14 action, the reduction of vibration.
In addition, the hot-water supply of present embodiment is configured with pump 14 in the inside of tank unit 2.Thereby, it is possible to the vibration preventing compressor 5 action and produce and pump 14 action and the resonance of the vibration produced.Thus, noise is reduced, and cut down the use amount of acoustic material, the cost degradation of hot-water supply can be realized.
And transfer valve 15 is more cheap than pump 14, make the control circuit of transfer valve 15 action also cheap than making the control circuit of pump 14 action.Thus, when comparing use two pumps 14 to the situation making thermal medium circulate with when using pump 14 and transfer valve 15 to the situation making thermal medium circulate, and thermal medium circulation is made to be low cost with pump 14 and transfer valve 15.
Then, supplying hot water auxiliary rotating is described, this supplying hot water auxiliary rotating is as described below: make heat pump assembly 30 action to carry out the heating of thermal medium and to make thermal medium circulate, thus to supplying hot water terminal 17 supplying hot water.
When carrying out supplying hot water running under the state that the thermal medium in the high-temperature region of tank 11 inside is few, even if utilize the heat exchange of thermal medium and the water carried out at supplying hot water heat exchanger 13, the water that also there is flowing in supplying hot water loop 16 can not fully by situation about heating.
Based on the detected value of the thermistor 22a ~ 22c being arranged on tank 11, control device 50 can detect that the thermal medium in the high-temperature region of tank 11 inside is fewer than setting.In such a state, sometimes need to supplying hot water terminal 17 supplying hot water, the supplying hot water auxiliary rotating of the heating of the parallel heating carrying out the thermal medium utilizing heat pump assembly 30 to realize and the water utilizing thermal medium to realize implemented by control device.And the setting in this situation can set according to the design load of the hot-water supplies such as the lift of the thermal capacity can stored at tank 11, pump 14.
And supplying hot water auxiliary rotating also can carry out indicating implementing from remote controller by user.
In supplying hot water auxiliary rotating, control device 50 comprises heat pump assembly 30, pump 14 and transfer valve 15.In supplying hot water auxiliary rotating, cold-producing medium circulates in the direction of the solid arrow of the inside of refrigerant loop 3 shown in Fig. 9.Thermal medium circulates in the direction of the dotted arrow of inside shown in Fig. 9 in thermal medium loop 4.That is, thermal medium flows through the bottom of the top of tank 11, threeway heat exchanger 60, transfer valve 15, pump 14, transfer valve 15, tank 11 successively.
During supplying hot water auxiliary rotating and supplying hot water operate, the loop direction of thermal medium is identical.The water flowing into supplying hot water loop 16 from running water pipe carries out heat exchange with thermal medium and cold-producing medium and becomes the hot water of set point of temperature threeway heat exchanger 60, and flows to supplying hot water terminal 17.
Like this, can will flow into the thermal medium heating of threeway heat exchanger 60 with cold-producing medium, and the heating of water can be carried out.Thus, even if when the thermal medium in high-temperature region is few, the temperature of the thermal medium flowing into threeway heat exchanger 60 also can be made to increase.Thus, to water heating in threeway heat exchanger 60, can generating hot water, the hot-water supply that usability is high can be realized.
And time large from the amount of the hot water of supplying hot water terminal 17 outflow, compared with the heat sometimes absorbed with thermal medium in heat pump assembly 30, in supplying hot water heat exchanger 13, thermal medium liberated heat is many.Thus, when implementing supplying hot water auxiliary rotating, compared with not carrying out the situation of supplying hot water auxiliary rotating, preferably make the heating efficiency large (such as 20kW) of heat pump assembly 30.
And the state that the thermal medium in the high-temperature region of tank 11 inside is fewer than setting detected at control device 50 under, when implementing supplying hot water auxiliary rotating, preferred control device 50 carries out controlling to make the heating efficiency of heat pump assembly 30 maximum.
And supplying hot water auxiliary rotating, because the flow direction of cold-producing medium that flows at refrigerant flow path 60a is identical direction with the flow direction of the thermal medium flowed at thermal medium stream 60b, so the running efficiency of heat pump assembly 30 reduces.Thus, remote controller preferably has the selection unit whether selection implements supplying hot water auxiliary rotating automatically.That is, preferably have and forbid that hot-water supply automatically implements the unit of supplying hot water auxiliary rotating.Thus, user can select whether to implement to operate with supplying hot water compared with the low supplying hot water auxiliary rotating of running efficiency.Thereby, it is possible to improve the usability of hot-water supply.
In addition, the hot-water supply of present embodiment can use the water comprising more hardness components.Its reason is below described.
The Japan that landform length that is dangerously steep, rivers and creeks is short in the ordinary course of things, the amount of hardness components of dissolving in the water of rivers and creeks flowing is few, is that the situation of soft water is more from the water of running water pipe supply.And, different according to region, also there is the place that hardness components in water is many.In addition, there is the situation that underground water comprises more hardness components.
On the other hand, length that is mild in landform, rivers and creeks long, such as Europe or Chinese, the amount of the hardness components of dissolving in rivers and creeks circulating water is many, and comparing the water supplied from running water pipe with Japan is that the situation of hard water is more.
The hardness components such as more calcium carbonate are such as dissolved with in this hard water.This hardness components temperature had along with water uprises and solubility reduces and the character separated out as incrustation scale.Thus, in the high-temperature portion of hot-water supply, incrustation scale is separated out and is attached on stream, and stream is blocked sometimes.In addition, even if stream does not block, when stream makes attachment incrustation scale, the pressure loss also increases, and the running efficiency of hot-water supply worsens.
Such as, as the calcium carbonate (CaCO of one of hardness components
3) solubility, as shown in Figure 2, have when water temperature rise time reduce tendency.That is, water more becomes high temperature, and the hardness components in water is easier to be attached on stream as incrustation scale precipitation.
In addition, comprise the situation of the water of more hardness components at sustainable supply under, the precipitation of incrustation scale and the attachment of incrustation scale is produced continuously, so incrustation scale easily deposits.Thus, the precipitation of incrustation scale easily among hot-water supply the flow of refrigerant of high temperature refrigerant flow path 60a near thermal medium stream 60b produce.In addition, because the water that hardness components is many is supplied to thermal medium stream 60b continuously, so easily produce the deposition of incrustation scale.
On the other hand, the hot-water supply of present embodiment makes thermal medium loop 4 for loop circuit.Therefore, the pressure increase in thermal medium loop 4, discharging a small amount of thermal medium from pipe arrangement 21, supplements new water to thermal medium loop 4.
Thus, the thermal medium circulated in thermal medium loop 4, can not use, does not supply new hardness components with not changing for a long time, so can suppress in the precipitation of the incrustation scale of thermal medium stream 60b and deposition.
And, fresh water is always supplied to the supplying hot water stream 60c of threeway heat exchanger 60.Herein, the maximum temperature to the hot water of tap, bathtub, first-class supplying hot water terminal 17 supply of shower is about 50 degree.Thus, in the supplying hot water heat exchanger low with thermal medium stream 60b C.T, be difficult to the precipitation producing incrustation scale.
In addition, oral siphon 18 from supplying hot water loop 16 branch of leaning on upstream side than threeway heat exchanger 60, and is connected with the bottom of tank 11, and is configured with pressure-reducing valve 19 at oral siphon 18.When by making hot-water supply operate, thermal medium expands, during the pressure increase of inside, thermal medium loop 4, a part for dilated thermal medium is released from the pipe arrangement 21 with relief valve 20.When the amount of the thermal medium of inside, thermal medium loop 4 reduces, when the pressure of inside, thermal medium loop 4 is reduced to more than certain value, water flow into oral siphon 18 from supplying hot water loop 16, to thermal medium loop 4 supplementing water (thermal medium).Thus, the pressure of inside, thermal medium loop 4 regulates automatically.Therefore, user does not need supplemental heat medium.And, when replacing pressure-reducing valve 19 to use stop valve, by making stop valve open, the thermal medium loop 4 of more than certain value can be reduced to for feedwater (thermal medium) to pressure.
And, be configured with compressor 5, decompressor 6, evaporimeter 7, Air Blast fan 9 at the heat pump unit 1 of present embodiment.In addition, heat pump unit 1 is connected with the connecting pipings 23 of tank unit 2 by flow of refrigerant.Thus, heat pump unit 1 is identical structure with the off-premises station of air conditioner.Thereby, it is possible to realize the off-premises station of air conditioner and sharing of heat pump unit 1.And when cold-producing medium is normally used R410A cold-producing medium in air-conditioning, the connection of the connecting pipings 23 during construction becomes easy.
In addition, the connecting pipings 23 being undertaken circulating by cold-producing medium due to heat pump unit 1 and tank unit 2 is connected, so the cold-producing medium of connecting pipings 23 inside can not freeze, does not also need in addition to carry out freezing prevention running etc.
(embodiment 9)
Figure 10 is the summary construction diagram of the threeway heat exchanger 60 of the hot-water supply of embodiments of the present invention 9.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
As shown in Figure 10, the hot-water supply of present embodiment has threeway heat exchanger 60, and it comprises refrigerant flow path 60a, thermal medium stream 60b, supplying hot water stream 60c, and each stream contacts with each other.Thus, refrigerant flow path 60a flow cold-producing medium, thermal medium stream 60b flow thermal medium, supplying hot water stream 60c flow water mutually can carry out heat exchange.
Then, the action of the hot-water supply of present embodiment is described.
Adding in heat run, cold-producing medium flows at refrigerant flow path 60a, and thermal medium flows at thermal medium stream 60b.Thus, cold-producing medium and thermal medium carry out heat exchange mutually.Now, cold-producing medium and thermal medium become relative current.
On the other hand, in supplying hot water running, thermal medium flows at thermal medium stream 60b, and water flows at supplying hot water stream 60c.Thus, thermal medium and aqueous phase carry out heat exchange mutually.Now, thermal medium and water become relative current.
In addition, in supplying hot water auxiliary rotating, cold-producing medium flows at refrigerant flow path 60a, and thermal medium flows at thermal medium stream 60b, and water flows at supplying hot water stream 60c.Thus, the water flowed at supplying hot water stream 60c absorbs heat from cold-producing medium and thermal medium.That is, the cold-producing medium of HTHP and the thermal medium of high temperature can be utilized to heat water.Now, cold-producing medium and thermal medium flow at equidirectional, cold-producing medium and thermal medium and become relative current at the water of supplying hot water flow path.Thus, even if due to also can generating hot water when the thermal medium of tank 11 inside is few, so the usability of hot-water supply improves.
Then, emergent supplying hot water running is described.Emergent supplying hot water running, in threeway heat exchanger 60, the cold-producing medium flowed at refrigerant flow path 60a and carry out heat exchange, generating hot water at the water that supplying hot water stream 60c flows.
When carrying out supplying hot water running under the state of thermal medium not having the high-temperature region of tank 11 inside, by the heat exchange with water of the thermal medium that undertaken by heat exchanger 60, the water flowed in supplying hot water loop 16 can not be heated fully.
Control device 50, when creating the needs to supplying hot water terminal 17 supplying hot water, first, utilize the thermistor 22a ~ 22c being arranged on tank 11 to detect the temperature of the thermal medium of tank 11 inside, compare to this detected value with to the temperature of the hot water of supplying hot water terminal 17 supply.And the temperature (design temperature) being supplied to the hot water of supplying hot water terminal 17 can be set with remote controller (not shown) by user, in addition, also can preset.
Control device 50, when the temperature of the thermal medium being judged to be tank 11 inside is lower than the temperature of the water supplied to supplying hot water terminal 17, makes heat pump assembly 30 action, and makes the cold-producing medium of HTHP flow into threeway heat exchanger 60.Thus, the cold-producing medium of HTHP flows at the refrigerant flow path 60a of threeway heat exchanger 60.Thus, in threeway heat exchanger 60, refrigerant flow path 60a flow cold-producing medium and supplying hot water stream 60c flow water carry out heat exchange, generating hot water.Now, as shown in Figure 10, cold-producing medium and water become relative current.
(embodiment 10)
Figure 11 is the summary construction diagram of the hot-water supply of embodiments of the present invention 10.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
The hot-water supply of present embodiment comprises heat pump assembly 30, thermal medium loop 4, supplying hot water loop 16, oral siphon 18, is configured with the integrated unit 25 of pipe arrangement 21.Thus, owing to there is no connecting pipings, so engineering time when arranging hot-water supply can be shortened.In addition, owing to there is no connecting pipings, so the heat radiation from connecting pipings can be prevented.
The hot-water supply of present embodiment uses carbon dioxide.As in refrigerant loop 3 circulation cold-producing medium, can use global warming up trend (GlobalWarmingPotential) be zero (0) carbon dioxide.The HFC cold-producing medium always used with R410A or R32 etc. compares, and the critical point temperature of carbon dioxide is low.Thus, when being used as cold-producing medium by carbon dioxide, form the supercritical steam cycle of the on high-tension side pressure postcritical of refrigerant loop 3.
Thus, compare with HFC cold-producing mediums such as R410A or R32 and thermal medium can be heated to high temperature (such as 85 degree).In addition, owing to thermal medium can be heated to high temperature, so the heat be stored in tank 11 can be made to increase, and the miniaturization of tank 11 can be realized.
On the other hand, when being used as cold-producing medium by carbon dioxide, the on high-tension side pressure of refrigerant loop 3 uprises (such as 8MPa) compared with using the situation of HFC cold-producing medium.Thus, need the resistance to pressure making refrigerant piping to improve, particularly need the resistance to pressure of the connecting pipings improved needed for construction.On the other hand, the hot-water supply of present embodiment does not have connecting pipings.Thus, the resistance to pressure considering connecting pipings is not needed.
Thereby, it is possible to make construction operation when arranging hot-water supply easy.In addition, owing to being accommodated with refrigerant loop 3, thermal medium loop 4, supplying hot water loop 16 in the inside of integrated unit 25, so the pipe arrangement connecting each component parts can be shortened.And, by the heat-barrier material that reels on the pipe arrangement of inside being accommodated in integrated unit 25, can radiation loss be reduced, and improve the running efficiency of hot-water supply.
(embodiment 11)
Figure 12 is the summary construction diagram of the hot-water supply of embodiments of the present invention 11.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
The hot-water supply of present embodiment has the pump of reversible pump 31 as force feed thermal medium.
Reversible pump 31 has the function making to reverse at the loop direction of the thermal medium of thermal medium loop 4 internal flow.That is, reversible pump 31 works as the switching device shifter making the loop direction of thermal medium reverse.Thus, transfer valve is not used just can to change the loop direction of thermal medium.
Adding in heat run, control device 50 controls reversible pump 31, circulates to make the direction of the solid arrow of thermal medium shown in Figure 12.Thermal medium in thermal medium loop 4 flows through the top of the bottom of tank 11, reversible pump 31, threeway heat exchanger 60, tank 11 successively.
Now, control device 50 controls heat pump assembly 30 and flow into threeway heat exchanger 60 to make the cold-producing medium of HTHP.Thus, the cold-producing medium and the thermal medium that flow into threeway heat exchanger 60 carry out heat exchange, generate the thermal medium of high temperature.The thermal medium generated flows in thermal medium loop 4, flow in tank 11 from the top of tank 11.Thus, at the thermal medium of the internal storage high temperature of tank 11.And control device 50 also can control reversible pump 31 and heat pump assembly 30, become setting to make the detected value of thermistor 22e.
In supplying hot water running, control device 50 controls reversible pump 31, circulates to make the direction of the dotted arrow of thermal medium shown in Figure 12.Thermal medium in thermal medium loop 4 flows through the bottom of the top of tank 11, threeway heat exchanger 60, reversible pump 31, tank 11 successively.
The thermal medium of the internal flow in thermal medium loop 4 carries out heat exchange with the water flowed in supplying hot water loop 16 in threeway heat exchanger 60.Thus, hot water is produced.
Such as, when user utilizes remote controller to set the temperature of the hot water flowed out from supplying hot water terminal 17, control device 50 utilizes thermistor 22e to detect the temperature flowing into supplying hot water heat exchanger 13, the rotating speed of reversible pump 31 is controlled, with the temperature making the temperature of the hot water detected by thermistor 22d become setting based on detected value.Herein, when the temperature detected by thermistor 22d is lower than the temperature of setting, control device 50 makes the rotating speed of reversible pump 31 reduce.On the other hand, when the temperature detected by thermistor 22d is higher than the temperature of setting, control device 50 makes the rotating speed of reversible pump 31 increase.
And, when supplying hot water terminal 17 can regulate temperature, control device 50 does not need the rotating speed in order to regulate the temperature of the hot water supplied to supplying hot water terminal 17 suitably to control reversible pump 31, as long as supplied to supplying hot water terminal 17 by hot water more than set point of temperature.
In supplying hot water auxiliary rotating, control device 50 controls heat pump assembly 30, flow into threeway heat exchanger 60 to make the cold-producing medium of HTHP.In addition, control device 50 controls reversible pump 31, circulates to make the direction of the dotted arrow of thermal medium shown in Figure 12.Thermal medium in thermal medium loop 4 flows through the bottom of the top of tank 11, threeway heat exchanger 60, reversible pump 31, tank 11 successively.
Like this, by the loop direction utilizing reversible pump 31 to switch thermal medium, a thermal medium loop 4 and a reversible pump 31 can be utilized to implement to add heat run, supplying hot water running and supplying hot water auxiliary rotating.
(embodiment 12)
Figure 13 is the summary construction diagram of the hot-water supply of embodiments of the present invention 12.Add identical symbol to the place identical with embodiment in the present embodiment, the description thereof will be omitted.
As shown in figure 13, the hot-water supply of present embodiment has supply pipe 27, and it is connected to the top of tank 11, has the stop valve 26 stream can closed and open.
In addition, tank 11 has the liquid level sensor 28 detected the amount of the thermal medium be stored in tank 11.Control device 50 utilizes liquid level sensor 28 to detect the minimizing of the amount of thermal medium, and shows on a remote control, and can notify user.
And the loop circuit that thermal medium loop 4 is tanks 11, transfer valve 15, pump 14, threeway heat exchanger 60 connect annularly and complete.Thus, the water that hardness components is many does not flow into threeway heat exchanger 60.Thereby, it is possible to suppress precipitation and the deposition of incrustation scale.And the thermal medium loop 4 between radiator 8 and the top of tank 11 is configured with the expansion drum 29 of the pressure regulating inside, thermal medium loop 4 when thermal medium expands.
When the amount of thermal medium reduces, make stop valve 26 open, can inside supplemental heat medium from from supply pipe 27 to tank 11.
In thermal medium loop 4, anti-icing fluid circulates as thermal medium.As thermal medium, principal component can be water, in addition, also can be have the specific heat higher than water or the thermal medium of pyroconductivity.Such as, the gallium-indium-tin alloy of the eutectic alloy of gallium, indium, tin can be used as.Thereby, it is possible to prevent the thermal medium flowed in thermal medium loop 4 from freezing.
Utilizability in industry
As mentioned above, hot-water supply of the present invention, owing to can use the water containing more hardness components, and can realize miniaturization, cost degradation, so can be applicable to the hot-water supply of home-use or business use etc.
Description of reference numerals
1 heat pump unit
2 tank unit
3 refrigerant loops
4 thermal medium loops
5 compressors
6 decompressors
7 evaporimeters
8 radiators
8b thermal medium stream (heating part)
9 Air Blast fans
11 tanks
13 supplying hot water heat exchangers
14 pumps
15 transfer valves (switching device shifter)
16 supplying hot water loops
17 supplying hot water terminals
18 oral siphons
19 pressure-reducing valves
20 relief valves
21 pipe arrangements
26 stop valves
27 supply pipes
28 liquid level sensors
30 heat pump assemblies (heater)
31 reversible pumps (switching device shifter)
50 control device
60 threeway heat exchangers
Claims (amendment according to treaty the 19th article)
1. (after correction) a kind of hot-water supply, is characterized in that, comprising:
With the thermal medium loop that the bottom of the tank of storage thermal medium and top are formed by connecting by thermal medium pipe arrangement annularly, described thermal medium circulates in described thermal medium loop;
Have and be arranged at the heater of heating part of described thermal medium loop for heating described thermal medium;
Be configured at the pump that described thermal medium is circulated in described thermal medium loop; With
The supplying hot water loop of supplying hot water terminal is flow to from the water of running water pipe supply,
Described hot-water supply is provided with the supplying hot water heat exchanger carrying out heat exchange between the described water that flows in the described thermal medium and described supplying hot water loop flowed in described thermal medium loop,
Described thermal medium loop connects the top of the bottom of described tank, described supplying hot water heat exchanger, described radiator, described tank successively with described thermal medium pipe arrangement,
Described thermal medium loop between the bottom of described tank and described supplying hot water heat exchanger arranges described pump and switches the switching device shifter of loop direction of described thermal medium.
2. (deletion)
3. (after correction) hot-water supply as claimed in claim 2, is characterized in that:
Described heater is the heat pump assembly with refrigerant loop, and compressor, radiator, decompressor, evaporimeter are formed by connecting by described refrigerant loop annularly, cold-producing medium in the inner loop of described refrigerant loop,
Heat exchange is carried out between the described thermal medium flowed in the described cold-producing medium that described radiator flows in described refrigerant loop and described heating part.
4. hot-water supply as claimed in claim 3, is characterized in that:
There is control device, this control device implement described in described radiator cold-producing medium relative with described thermal medium flow add heat run and described in described supplying hot water heat exchanger, thermal medium and described aqueous phase operate to the supplying hot water flowed.
5. hot-water supply as claimed in claim 4, is characterized in that:
Supplying hot water auxiliary rotating implemented by described control device, and described supplying hot water auxiliary rotating makes described cold-producing medium and described thermal medium carry out heat exchange in described radiator, and in described supplying hot water heat exchanger, make described thermal medium and described water carry out heat exchange.
6. (deletion)
7. (deletion)
8. (deletion)
9. (deletion)
10. (deletion)
11. (after correction) hot-water supply according to any one of Claims 1 to 5, is characterized in that:
Described switching device shifter is the transfer valve of the loop direction switching described thermal medium.
12. (after correction) hot-water supply according to any one of Claims 1 to 5, is characterized in that:
Described pump is the reversible pump playing function as the described switching device shifter making the loop direction of described thermal medium reverse.
13. hot-water supplies according to any one of claim 1 ~ 12, is characterized in that:
Have supply pipe, this supply pipe has the stop valve ended by stream, and is connected with the top of described tank.
14. (after correction) hot-water supply according to any one of claim 1 ~ 12, is characterized in that:
There is oral siphon, the stop valve that this oral siphon has pressure-reducing valve or ended by stream, from leaning on the described supplying hot water branch of a circuit of upstream side than described supplying hot water heat exchanger and being connected with the described bottom of described tank.
Claims (14)
1. a hot-water supply, is characterized in that, comprising:
With the thermal medium loop that the bottom of the tank of storage thermal medium and top are formed by connecting by thermal medium pipe arrangement annularly, described thermal medium circulates in described thermal medium loop;
To the heater that described thermal medium heats;
Be configured at the pump that described thermal medium is circulated in described thermal medium loop; With
The supplying hot water loop of supplying hot water terminal is flow to from the water of running water pipe supply,
Described hot-water supply is provided with the heat exchanger carrying out heat exchange between the described water that flows in the described thermal medium and described supplying hot water loop flowed in described thermal medium loop.
2. hot-water supply as claimed in claim 1, is characterized in that:
Described thermal medium loop is provided with the heating part utilizing thermal medium described in described heating devices heat,
Described heat exchanger is made to be the supplying hot water heat exchanger with the thermal medium stream of described thermal medium flowing and the current road of described water flow.
3. hot-water supply as claimed in claim 2, is characterized in that:
Described heater is the heat pump assembly with refrigerant loop, and compressor, radiator, decompressor, evaporimeter are formed by connecting by described refrigerant loop annularly, cold-producing medium in the inner loop of described refrigerant loop,
Heat exchange is carried out between the described thermal medium flowed in the described cold-producing medium that described radiator flows in described refrigerant loop and described thermal medium loop.
4. hot-water supply as claimed in claim 3, is characterized in that:
There is control device, this control device implement described in described radiator cold-producing medium relative with described thermal medium flow add heat run and described in described supplying hot water heat exchanger, thermal medium and described aqueous phase operate to the supplying hot water flowed.
5. hot-water supply as claimed in claim 4, is characterized in that:
Supplying hot water auxiliary rotating implemented by described control device, and described supplying hot water auxiliary rotating makes described cold-producing medium and described thermal medium carry out heat exchange in described radiator, and in described supplying hot water heat exchanger, make described thermal medium and described water carry out heat exchange.
6. hot-water supply as claimed in claim 1, is characterized in that:
Described heater has the refrigerant loop that cold-producing medium carries out circulating and the heat pump assembly heated described thermal medium,
Described heat exchanger is threeway heat exchanger, and this threeway heat exchanger has: form the refrigerant flow path of described refrigerant loop, form the thermal medium stream in described thermal medium loop and form the supplying hot water stream in described supplying hot water loop.
7. hot-water supply as claimed in claim 6, is characterized in that:
The structure that described threeway heat exchanger is described refrigerant flow path, described thermal medium stream and described supplying hot water stream contact with each other.
8. hot-water supply as claimed in claim 7, is characterized in that:
There is control device, this control device implement described in described threeway heat exchanger cold-producing medium relative with described thermal medium flow add heat run and described in described threeway heat exchanger, thermal medium and described aqueous phase operate to the supplying hot water flowed.
9. hot-water supply as claimed in claim 8, is characterized in that:
The supplying hot water auxiliary rotating that described control device is implemented to make described cold-producing medium, described thermal medium and described water flow into described threeway heat exchanger and heated described water.
10. the hot-water supply as described in claim 8 or 9, is characterized in that:
There is the thermistor detected the temperature of the described thermal medium be stored in described tank,
When under the state that the temperature of the hot water being supplied to described supplying hot water terminal is higher than the described temperature of the described thermal medium in described tank to described supplying hot water terminal supplying hot water,
Described control device is implemented cold-producing medium and described aqueous phase described in described threeway heat exchanger and is operated to the emergent supplying hot water flowed.
11. hot-water supplies according to any one of claim 1 ~ 10, is characterized in that:
Described thermal medium loop has the transfer valve of the loop direction switching described thermal medium.
12. hot-water supplies according to any one of claim 1 ~ 10, is characterized in that:
Described pump is the reversible pump that the loop direction of described thermal medium can be made to reverse.
13. hot-water supplies according to any one of claim 1 ~ 12, is characterized in that:
Have supply pipe, this supply pipe has the stop valve ended by stream, and is connected with the top of described tank.
14. hot-water supplies according to any one of claim 1 ~ 12, is characterized in that:
There is oral siphon, the stop valve that this oral siphon has pressure-reducing valve or ended by stream, from leaning on the described supplying hot water branch of a circuit of upstream side than described threeway heat exchanger and being connected with the described bottom of described tank.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-065855 | 2013-03-27 | ||
| JP2013065855 | 2013-03-27 | ||
| JP2013065856 | 2013-03-27 | ||
| JP2013-065856 | 2013-03-27 | ||
| PCT/JP2014/001270 WO2014155993A1 (en) | 2013-03-27 | 2014-03-07 | Hot-water supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105102902A true CN105102902A (en) | 2015-11-25 |
| CN105102902B CN105102902B (en) | 2018-06-22 |
Family
ID=51623014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480017987.6A Expired - Fee Related CN105102902B (en) | 2013-03-27 | 2014-03-07 | Hot-water supply |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2980504B1 (en) |
| JP (1) | JPWO2014155993A1 (en) |
| CN (1) | CN105102902B (en) |
| WO (1) | WO2014155993A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556291A (en) * | 2018-12-21 | 2019-04-02 | 珠海格力电器股份有限公司 | Temperature-adjusting device and water heater |
| CN112524679A (en) * | 2020-11-16 | 2021-03-19 | 上海有隆工程勘测技术有限公司 | Pipeline heat accumulating type air source heat pump secondary heating hot water system |
| CN112710018A (en) * | 2019-10-25 | 2021-04-27 | 株式会社能率 | Heating hot water supply device |
| CN115224303A (en) * | 2022-07-01 | 2022-10-21 | 上海卓微氢科技有限公司 | Fuel cell circulating cooling device and temperature balance control method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7215956B2 (en) * | 2019-04-23 | 2023-01-31 | リンナイ株式会社 | Hybrid hot water system |
| DE102019119229A1 (en) * | 2019-07-16 | 2021-01-21 | Vaillant Gmbh | Safety drain of an external heat pump unit |
| DE102019119243A1 (en) * | 2019-07-16 | 2021-01-21 | Vaillant Gmbh | Safety drain of an external heat pump unit |
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| JP3414825B2 (en) * | 1994-03-30 | 2003-06-09 | 東芝キヤリア株式会社 | Air conditioner |
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| JP5310431B2 (en) * | 2009-09-17 | 2013-10-09 | パナソニック株式会社 | Heat pump type hot water heater |
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2014
- 2014-03-07 JP JP2015508010A patent/JPWO2014155993A1/en active Pending
- 2014-03-07 WO PCT/JP2014/001270 patent/WO2014155993A1/en active Application Filing
- 2014-03-07 CN CN201480017987.6A patent/CN105102902B/en not_active Expired - Fee Related
- 2014-03-07 EP EP14776050.8A patent/EP2980504B1/en active Active
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| JPH04126924A (en) * | 1990-09-19 | 1992-04-27 | Takenaka Komuten Co Ltd | Hot water supply system |
| JP2005030758A (en) * | 2004-09-24 | 2005-02-03 | Matsushita Electric Ind Co Ltd | Heat pump type bath hot-water supply system |
| JP2009174753A (en) * | 2008-01-23 | 2009-08-06 | Mitsubishi Electric Corp | Heat exchanger and heat pump water heater |
| CN102297505A (en) * | 2010-06-24 | 2011-12-28 | 日立空调·家用电器株式会社 | Hot-water feeder and hot-water supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109556291A (en) * | 2018-12-21 | 2019-04-02 | 珠海格力电器股份有限公司 | Temperature-adjusting device and water heater |
| CN112710018A (en) * | 2019-10-25 | 2021-04-27 | 株式会社能率 | Heating hot water supply device |
| CN112524679A (en) * | 2020-11-16 | 2021-03-19 | 上海有隆工程勘测技术有限公司 | Pipeline heat accumulating type air source heat pump secondary heating hot water system |
| CN115224303A (en) * | 2022-07-01 | 2022-10-21 | 上海卓微氢科技有限公司 | Fuel cell circulating cooling device and temperature balance control method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2980504A1 (en) | 2016-02-03 |
| JPWO2014155993A1 (en) | 2017-02-16 |
| WO2014155993A1 (en) | 2014-10-02 |
| CN105102902B (en) | 2018-06-22 |
| EP2980504B1 (en) | 2019-05-08 |
| EP2980504A4 (en) | 2016-07-13 |
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