CN105102902B - Hot-water supply - Google Patents
Hot-water supply Download PDFInfo
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- CN105102902B CN105102902B CN201480017987.6A CN201480017987A CN105102902B CN 105102902 B CN105102902 B CN 105102902B CN 201480017987 A CN201480017987 A CN 201480017987A CN 105102902 B CN105102902 B CN 105102902B
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- Prior art keywords
- thermal medium
- water
- heat
- tank
- supply
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 649
- 239000008400 supply water Substances 0.000 claims abstract description 117
- 238000010438 heat treatment Methods 0.000 claims abstract description 92
- 239000003507 refrigerant Substances 0.000 claims description 185
- 230000002441 reversible effect Effects 0.000 claims description 33
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 3
- 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 17
- 238000001514 detection method Methods 0.000 description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 description 10
- 239000001569 carbon dioxide Substances 0.000 description 10
- 239000003643 water by type Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000013517 stratification Methods 0.000 description 7
- 239000013589 supplement Substances 0.000 description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000008233 hard water Substances 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000010792 warming Methods 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
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 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
- 238000004378 air conditioning Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 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
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011800 void material Substances 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
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity 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
- 230000020169 heat generation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000004804 winding Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The hot-water supply of the present invention is characterised by comprising：The thermal medium circuit (4) that the lower part of the tank (11) of thermal medium and top are annularly formed by connecting by thermal medium piping is stored, thermal medium recycles in the thermal medium circuit (4)；The heating unit (30) heated to thermal medium；It is configured at thermal medium circuit (4), the pump (14,31) for recycling thermal medium；With the heat supply water loop (16) flowed from the water that running water pipe supplies to supplying hot water terminal (17), it is provided with the heat supply water heat exchanger (13) for carrying out heat exchange in the thermal medium flowed in thermal medium circuit (4) and heat supply water loop (16) between flowing water, due to thermal medium circuit (4) as loop circuit thus can use containing more hardness components water, and the heating of thermal medium can be carried out using a thermal medium circuit (4) and both heating of water for being supplied to supplying hot water terminal, so can minimize, is cost effective.
Description
Technical field
The present invention relates to hot-water supplies.
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, which includes：Store the heat-accumulator tank of thermal medium；The heat pump heated to thermal medium
Unit；Hot-water return is typically for general supplying hot water terminal supply hot water；Bathtub heat supply water loop to bathtub supply hot water；
It is stored in the supplying hot water heating circuit of the thermal medium flowing of the high temperature of heat-accumulator tank；With the supplying hot water height flowed in heating circuit
The thermal medium of temperature carries out the supplying hot water heat exchanger of heat exchange with the water supplied from running water pipe.
The 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 heat of heat-accumulator tank
Medium and water supply from running water pipe carry out heat exchange in heat supply water heat exchanger and generate hot water.
According to the structure, water loop and supplying hot water heat that thermal medium is only annularly connect in heat pump unit and heat-accumulator tank are handed over
Parallel operation is recycled with the supplying hot water that heat-accumulator tank is annularly connect in heating circuit, as a result, will not to general supplying hot water terminal or
Bathtub supplies.That is, thermal medium is recycled in loop circuit.The water more than hardness components will not always flow through heat pump unit as a result, inhibit water
The precipitation of dirt (calcium component in water etc. becomes substance obtained by solid-state), can use the water more than hardness components.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2012-7802 bulletins
Invention content
The subject that the invention solves
But in above-mentioned existing structure, it is respectively arranged with the water that heat pump unit is annularly formed by connecting with heat-accumulator tank
The supplying hot water heating circuit that circuit and supplying hot water heat exchanger are annularly formed by connecting with heat-accumulator tank.In addition, follow fluid
The pump of ring is loaded in each circuit.There are hot-water supply enlargement, the increased subjects of cost as a result,.
The present invention solves above-mentioned existing subject, it is therefore an objective to which offer can use the water more than hardness components, and can be small-sized
Change, cost effective hot-water supply.
The method used for solving the problem
In order to solve above-mentioned existing subject, hot-water supply of the invention is characterised by comprising：With thermal medium piping
The thermal medium circuit that the lower part for the tank for storing thermal medium and top are annularly formed by connecting, above-mentioned thermal medium is in above-mentioned thermal medium
It is recycled in circuit；To the heating unit of above-mentioned thermal medium heating；Be configured at above-mentioned thermal medium circuit recycles above-mentioned thermal medium
Pump；The heat supply water loop of supplying hot water terminal is flow to the water supplied from running water pipe, above-mentioned hot-water supply is provided with upper
It states and heat exchange is carried out between the above-mentioned thermal medium flowed in thermal medium circuit and the above-mentioned water flowed in above-mentioned heat supply water loop
Heat exchanger.
Thermal medium circuit becomes loop circuit as a result,.Further, since the thermal medium that heat exchanger flows in thermal medium circuit
Heat exchange is carried out between flowing water in heat supply water loop, so the heating of thermal medium can be realized with a thermal medium circuit
Both with the heating of water that is supplied to supplying hot water terminal.
Invention effect
According to the present invention be capable of providing can use contain more hardness components it is water, can minimize, cost effective
Hot-water supply.
Description of the drawings
Fig. 1 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 1.
Fig. 2 is to represent calcium carbonate (CaCO3) solubility curve chart.
Fig. 3 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 2.
Fig. 4 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 3.
Fig. 5 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 4.
Fig. 6 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 5.
Fig. 7 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 6.
Fig. 8 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 7.
Fig. 9 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 8.
Figure 10 (a) is the solid of the outline of the threeway heat exchanger for the hot-water supply for representing embodiments of the present invention 9
Figure, (b) is the sectional view for the outline for representing the threeway heat exchanger.
Figure 11 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 10.
Figure 12 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 11.
Figure 13 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 12.
Figure 14 is the schematic structural diagram of existing hot-water supply.
Specific embodiment
1st aspect is that hot-water supply is characterised by comprising：The lower part of the tank of thermal medium will be stored with thermal medium piping
The thermal medium circuit being annularly formed by connecting with top, above-mentioned thermal medium recycle in above-mentioned thermal medium circuit；It is situated between to above-mentioned heat
The heating unit of matter heating；It is configured at the pump for making above-mentioned thermal medium cycle in above-mentioned thermal medium circuit；It is supplied with from running water pipe
Water flow to the heat supply water loop of supplying hot water terminal, above-mentioned hot-water supply be provided with flowed in above-mentioned thermal medium circuit it is upper
State the heat exchanger that heat exchange is carried out between the above-mentioned water flowed in thermal medium and above-mentioned heat supply water loop.
Thermal medium circuit becomes loop circuit as a result,.In addition, using the thermal medium flowed in thermal medium circuit is utilized to certainly
The structure that water is heated.Therefore, it is possible to which the heat near high-temperature portion, particularly the heating unit in hot-water supply is inhibited to be situated between
The precipitation of incrustation scale (calcium component in water etc. becomes substance obtained by solid-state) in matter circuit.Thereby, it is possible to provide that packet can be used
The hot-water supply of water containing more hardness components.
In addition, the water of heat supply water loop is supplied and flowed into from running water pipe, because of the pressure in running water pipe flowing water
(hydraulic pressure) and to supplying hot water end flow.Flow thereby, it is possible to the hot water for ensuring to supply from supplying hot water terminal.Therefore, it is possible to
Improve the usability of user.
Furthermore it is possible to use the water that a thermal medium circuit supplies the heating that carries out thermal medium and to supplying hot water terminal
Heating can cut down the number of pump.Thereby, it is possible to realize the minimizing of hot-water supply, cost effective.
2nd aspect is characterized in that, particularly in the 1st aspect, is provided in above-mentioned thermal medium circuit and is added using above-mentioned
Thermal heats the heating part of above-mentioned thermal medium, make above-mentioned heat exchanger be with the thermal medium flow path that above-mentioned thermal medium flow with
The heat supply water heat exchanger on the flow road of above-mentioned water flowing.
In heat supply water heat exchanger, heat exchange is carried out between water and thermal medium supplying to obtain from running water pipe, is supplied
To the hot water as the shower of general supplying hot water terminal, tap and bathtub temperature in the case that it is highest for 50 degree a left sides
It is right.Due to the water easier precipitation for generating incrustation scale of temperature height, so in the heat supply water heat exchanger lower than heating part temperature
In, it is difficult to generate the precipitation of incrustation scale.
3rd aspect is characterized in that particularly in the 2nd aspect, above-mentioned heating unit is the heat for having refrigerant circuit
Compressor, radiator, decompressor, evaporator are annularly formed by connecting by pump installation, the refrigerant circuit, and refrigerant is upper
The inside cycle of refrigerant circuit is stated, the above-mentioned refrigerant that above-mentioned radiator flows in above-mentioned refrigerant circuit is situated between with above-mentioned heat
Heat exchange is carried out between the above-mentioned thermal medium flowed in matter circuit.
Thereby, it is possible to realize the excellent hot-water supply of energy saving.
4th aspect is characterized in that, particularly in the 3rd aspect, has control device, which implements above-mentioned
In radiator the heating operating of above-mentioned refrigerant and above-mentioned thermal medium relative flow and in above-mentioned heat supply water heat exchanger it is above-mentioned
Thermal medium and the supplying hot water of above-mentioned water relative flow operate.
It is opposite stream to make the flowing of refrigerant and the flowing of thermal medium as a result, can improve the heating heated to thermal medium
The heat exchanger effectiveness of operating.In addition, the flowing of thermal medium and the flowing of water is made to be opposite stream, the heat supply heated to water can be improved
The heat exchanger effectiveness that water transport turns.That is, by a thermal medium circuit for heating both operating and supplying hot water operating, and can carry
The energy saving of high hot-water supply.
5th aspect is characterized in that, in the particularly the 4th aspect, above-mentioned control device implements supplying hot water auxiliary rotating, above-mentioned
Supplying hot water auxiliary rotating makes above-mentioned refrigerant carry out heat exchange with above-mentioned thermal medium in above-mentioned radiator, and in above-mentioned heat supply
Above-mentioned thermal medium is made to carry out heat exchange with above-mentioned water in water heat exchanger.
When the thermal medium of high temperature in tank carries out supplying hot water operating in the state of reducing, only pass through heat supply hydrothermal exchange
The heat exchange of thermal medium and water in device, sometimes water do not heated fully.Under such circumstances, control device makes heat pump assembly
Action with radiators heat thermal medium, and carries out with heat supply water heat exchanger the heating of water.Thereby, it is possible to supplying hot water end
End supply hot water.
That is, in the case that the thermal medium of the high temperature in tank reduces, due to refrigerant being utilized to realize by being carried out at the same time
Thermal medium heating and can generate hot water using both the heating of water that thermal medium is realized, so can realize to improve makes
The hot-water supply of the comfort of user.
6th aspect is characterized in that particularly in the 1st aspect, above-mentioned heating unit is recycled with refrigerant
Refrigerant circuit and the heat pump assembly that is heated to above-mentioned thermal medium, above-mentioned heat exchanger is threeway heat exchanger, this three
Logical heat exchanger has：The refrigerant flow path for forming above-mentioned refrigerant circuit, the thermal medium flow path for forming above-mentioned thermal medium circuit,
With the supplying hot water flow path for forming above-mentioned heat supply water loop.
Thermal medium circuit becomes loop circuit as a result,.In addition, using the thermal medium flowed in thermal medium circuit is utilized to certainly
The structure that water is heated.Therefore, it is possible to which the heat near high-temperature portion, particularly the heating unit in hot-water supply is inhibited to be situated between
The precipitation of incrustation scale (calcium component in water etc. becomes substance obtained by solid-state) in matter circuit.Thereby, it is possible to provide that packet can be used
The hot-water supply of water containing more hardness components.
In addition, the water of heat supply water loop is supplied and flowed into from running water pipe, because of the pressure in running water pipe flowing water
(hydraulic pressure) and to supplying hot water end flow.Flow thereby, it is possible to the hot water for ensuring to supply from supplying hot water terminal.Therefore, it is possible to
Improve the usability of user.
In addition, the heating of thermal medium can be carried out and to heat supply using a thermal medium circuit and a threeway heat exchanger
The heating of the water of water terminal supply can cut down the number of pump.Thereby, it is possible to realize the minimizing of hot-water supply, low cost
Change.
Moreover, in threeway heat exchanger, the heating of the water supplied from running water pipe can be carried out, but is supplied to conduct
The temperature of the hot water of the shower of general supplying hot water terminal, tap and bathtub in the case that it is highest be 50 degree or so.Water is got over
It is the easier precipitation for generating incrustation scale of temperature height, so being difficult to generate the precipitation of incrustation scale in supplying hot water flow path.
7th aspect be characterized in that, particularly the 6th aspect in, above-mentioned threeway heat exchanger for above-mentioned refrigerant flow path,
The structure that above-mentioned thermal medium flow path and above-mentioned supplying hot water flow path contact with each other.
Form refrigerant flow path as a result, the threeway heat exchanger that thermal medium flow path and supplying hot water flow path are integrally formed.By
This, can realize the miniaturization of threeway heat exchanger and minimize hot-water supply.
8th aspect is characterized in that, particularly in the 7th aspect, has control device, which implements above-mentioned
Above-mentioned refrigerant is with the heating operating of above-mentioned thermal medium relative flow and in above-mentioned threeway heat exchanger in threeway heat exchanger
Above-mentioned thermal medium and the supplying hot water of above-mentioned water relative flow operate.
It is opposite stream to make the flowing of refrigerant and the flowing of thermal medium as a result, can improve the heating heated to thermal medium
The heat exchanger effectiveness of operating.In addition, the flowing of thermal medium and the flowing of water is made to be opposite stream, the heat supply heated to water can be improved
The heat exchanger effectiveness that water transport turns.That is, by a thermal medium circuit for heating both operating and supplying hot water operating, and can carry
The energy saving of high hot-water supply.
9th aspect is characterized in that, particularly in the 8th aspect, the implementation of above-mentioned control device makes above-mentioned refrigerant, above-mentioned
The supplying hot water auxiliary rotating that thermal medium and above-mentioned water are flowed into above-mentioned threeway heat exchanger to heat above-mentioned water.
When the thermal medium of high temperature in tank carries out supplying hot water operating in the state of reducing, only pass through threeway heat exchanger
In thermal medium and water heat exchange, sometimes water cannot fully be heated.In this case, control device fills heat pump
Action is put, refrigerant, thermal medium and water is made to be flowed into threeway heat exchanger, carries out the heating of water.Thereby, it is possible to supplying hot water end
End supply hot water.
That is, in the case that the thermal medium of the high temperature in tank reduces, due to refrigerant being utilized to realize by being carried out at the same time
Thermal medium heating and can generate hot water using both the heating of water that thermal medium is realized, so can realize to improve makes
The hot-water supply of the comfort of user.
10th aspect is characterized in that, particularly in the 8th or the 9th aspect, is had upper in above-mentioned tank to being stored in
The thermistor that the temperature of thermal medium is detected is stated, is being supplied to the temperature of the hot water of above-mentioned supplying hot water terminal than in above-mentioned tank
Above-mentioned thermal medium above-mentioned temperature height in the state of to above-mentioned supplying hot water terminal supply hot water in the case of, above-mentioned control device
Implement above-mentioned refrigerant and the emergent supplying hot water of above-mentioned water relative flow in above-mentioned threeway heat exchanger to operate.
In the case that the temperature of hot water of the temperature of the thermal medium inside tank than being supplied to supplying hot water terminal is low as a result,
Refrigerant is exchanged with water, hot water can be generated.Even if the situation inside tank is not stored in the thermal medium of high temperature as a result,
Under, can also hot water be supplied to user, can improve usability.
11st aspect is characterized in that particularly in any aspect in the 1 to the 10th, above-mentioned thermal medium circuit has
Switch the switching valve of the loop direction of above-mentioned thermal medium.
Thereby, it is possible to utilize the loop direction for switching Vavle switching thermal medium.That is, only by being arranged one in thermal medium circuit
Pump, it is opposite stream, and make threeway heat exchanger that can make the flowing of the refrigerant in threeway heat exchanger and the flowing of thermal medium
In the flowing of thermal medium and the flowing of water be opposite stream.Thereby, it is possible to improve the running efficiency of hot-water supply.
12nd aspect be characterized in that, particularly in any aspect in the 1 to the 10th, said pump be can make it is above-mentioned
The reversible pump of the loop direction reversion of thermal medium.
The loop direction of thermal medium is allowed hand over using reversible pump as a result,.That is, only by being arranged one in thermal medium circuit
Pump, it is opposite stream that can make the flowing of the refrigerant in threeway heat exchanger and the flowing of thermal medium, in addition, in Shi Jiao Change devices
The flowing of thermal medium and the flowing of water are opposite stream.Thereby, it is possible to improve the running efficiency of hot-water supply.
13rd aspect is characterized in that, particularly in any aspect in the 1 to the 12nd, has supply pipe, the supply
Pipe is connect with the shut-off valve for ending flow path with the top of above-mentioned tank.
Thereby, it is possible to open shut-off valve to supplement thermal medium to thermal medium circuit.In addition, for example using anti-icing fluid as
During thermal medium, the thermal medium of thermal medium loop inner will not freeze.Therefore, made in thermal medium circuit by only making pump driving
Thermal medium recycles, and do not need to prevent from freezing freezes the heater of prevention operating or installation for pre- anti-freeze.
14th aspect is characterized in that, particularly in any aspect in the 1 to the 12nd, has oral siphon, this enters water
Shut-off valve of the pipe with pressure reducing valve or by flow path cut-off is returned from than the above-mentioned supplying hot water of above-mentioned threeway heat exchanger on the upstream side
Road branch simultaneously connect with the above-mentioned lower part of above-mentioned tank.
Even if in the case that the amount of the thermal medium in thermal medium circuit reduces as a result, thermal medium flows in oral siphon
It moves and is supplied to tank.Thereby, it is possible to the thermal medium of the inside in thermal medium circuit is made to be always more than a certain amount of.In addition, thermal medium
Adjunctive program become simple.
Below, the embodiments of the present invention will be described with reference to the drawings.Moreover, the present invention is not limited by the embodiment
It is fixed.
(embodiment 1)
Fig. 1 is the schematic structural 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, heat pump assembly 30 is used as heating unit.Heat pump assembly
30 have refrigerant circuit 3.
In addition, as shown in Figure 1, the hot-water supply of present embodiment includes heat pump unit 1, tank unit (tank unit)
2 and carry out hot-water supply control control device 50.Heat pump unit 1 is mutually interconnected with tank unit 2 using connecting pipings 23
It connects.Present embodiment is the structure used from the water that running water pipe supplies as thermal medium.
The refrigerant circuit 3 that forms heat pump assembly 30 and recycled in internal refrigerant is accommodated in heat pump unit 1
A part.A part for refrigerant circuit 3 is accommodated in tank unit 2 and thermal medium circuit 4 that thermal medium is recycled.
Refrigerant circuit 3 is the compressor 5 compressed to refrigerant, heat exchange is carried out between refrigerant and thermal medium
Radiator 8, the decompressor 6 that is depressurized to refrigerant and the evaporator 7 that heat exchange is carried out between refrigerant and air
It is annularly connected and formed by refrigerant piping successively.Radiator 8 is configured in tank unit 2, compressor 5, decompressor 6,
Evaporator 7 is configured in heat pump unit 1.Moreover, as decompressor 6 for example using electric expansion valve.In addition, for evaporation
The Air Blast fan 9 that device 7 is blown is configured in heat pump unit 1.
The thermal medium circuit 4 that thermal medium is recycled is the lower part for the tank 11 for storing thermal medium, between water and thermal medium
Carry out the top (being upper side or top in Fig. 1) of the heat supply water heat exchanger 13 of heat exchange, radiator 8, tank 11
It is annularly connected and formed by thermal medium piping successively.
Radiator 8 includes the refrigerant flow path 8a of refrigerant flowing and the thermal medium flow path (heating part) of thermal medium flowing
8b.In addition, heat supply water heat exchanger 13 includes thermal medium flow path 13a and flow road 13b.As radiator 8, heat supply hydrothermal exchange
Device 13, such as use board-like heat exchanger, the heat exchanger of Double-pipe type.
Thermal medium circuit 4 between the top of radiator 8 and tank 11 is configured with the temperature-sensitive electricity of the temperature of detection thermal medium
Hinder 22e.In addition, the thermal medium circuit 4 between the lower part of heat supply water heat exchanger 13 and tank 11 is configured with detection thermal medium
The thermistor 22f of temperature.
In addition, the thermal medium circuit 4 between tank 11 and heat supply water heat exchanger 13 is configured with to recycle thermal medium
Pump 14.Moreover, the thermal medium circuit 4 between tank 11 and heat supply water heat exchanger 13 is configured with switching valve 15.Switching valve 15
The loop direction of thermal medium is inverted as switching device by switching the flow path in thermal medium circuit 4.That is, utilize switching valve
15, it allows hand over thermal medium and is flowed out from the top of tank 11 and the loop direction and thermal medium that are flowed into from the lower part of tank 11 are from tank 11
The loop direction that lower part is flowed out and flowed into from the top of tank 11.
Switching valve 15 is provided with entrance or outlet in 4 directions, allows hand over the loop direction of thermal medium.Such as Fig. 1 institutes
Show, switching valve 15 allows hand over the flow path represented by solid line and the flow path being represented by the dotted line.
Heat supply water loop 16 is that the water from running water pipe is flowed to the supplying hot waters such as tap, bathtub and shower head terminal 17
Circuit.In heat supply water heat exchanger 13, water and thermal medium carry out heat exchange, generate hot water.The hot water of generation is in supplying hot water
It flows in circuit 16, is supplied from supplying hot water terminal 17 to user.Between heat supply water heat exchanger 13 and supplying hot water terminal 17
Heat supply water loop 16 be configured with detection water temperature thermistor 22d and detection water flowing flow switch 10.
In addition, oral siphon 18 leans on upstream from than heat supply water heat exchanger 13 on the flow direction of the water of heat supply water loop 16
16 branch of heat supply water loop of side, and connect with the lower part of tank 11.Oral siphon 18 has the pressure made in 18 flowing water of oral siphon
The pressure reducing valve 19 of power reduction.When pressure inside thermal medium circuit 4 is declined more than certain value, it is flowed into the water of heat supply water loop 16
A part flowed to oral siphon 18, the lower part of tank 11 is flowed into via pressure reducing valve 19.That is, the hot-water supply of present embodiment
Using the water in thermal medium circuit 4 is flowed into from oral siphon 18 as thermal medium.Furthermore, it is also possible to instead of pressure reducing valve 19, energy is used
Enough flow paths by oral siphon 18 are closed or open shut-off valve.
Moreover, by piping 21 of the top of tank 11 connection with relief valve (safety valve) 20, composition returns thermal medium
The pressure removing device of pressure reduction in road 4.
In addition, tank 11 is provided with thermistor 22a, 22b, 22c of the temperature for measuring the thermal medium in tank 11.
Heat pump unit 1 and tank unit 2 are connected with each other using connecting pipings 23.In the present embodiment, in tank unit 2
Portion is configured with the radiator 8 that heat exchange is carried out between refrigerant and thermal medium.That is, connecting pipings 23 is to form refrigerant circuit
The refrigerant piping of 3 part.
Heat pump unit 1 and tank unit 2 are connected with each other in the setting of hot-water supply using connecting pipings 23.It moreover, will
Remote controler (not shown) and the lead connected of heat pump unit 1 and the power cord for connecting heat pump unit 1 and tank unit 2 are also in heat supply
It is connected during the setting of water installations.
After hot-water supply is set, it is open state that relief valve 20 is made in a state that supplying hot water terminal 17 is closed
When, water is flowed into heat supply water loop 16, is flowed through oral siphon 18 by pressure reducing valve 19, is flowed into tank 11.Later, water is also flowed into heat
Medium loop 4, tank 11 and thermal medium circuit 4 are filled with water.Whether thermal medium circuit 4 and tank 11 are full of than water, can pass through water
Whether from piping 21 judgement is flowed out.That is, if water flows out, the inside ratio water of thermal medium circuit 4 and tank 11 is full of.This implementation
The hot-water supply of mode is used is flowed into the water in tank 11 and thermal medium circuit 4 as thermal medium after the flowing of oral siphon 18.
Moreover, after tank 11 and thermal medium circuit 4 are full of by thermal medium (water), the thermal medium of the inside in thermal medium circuit 4
During reduction, the pressure reduction of the inside in tank 11 and thermal medium circuit 4.The pressure reduction of the inside in tank 11 and thermal medium circuit 4 is arrived
When more than certain value, the water for being flowed into heat supply water loop 16 flows in oral siphon 18, and automatically flows into the inside of tank 11.
The user oneself for not needing to hot-water supply as a result, carries out the supplement of thermal medium.
In addition, the water flowed into from running water pipe to heat supply water loop 16 due to the pressure of flowing water in running water pipe to
Supplying hot water terminal 17 flows.In general, running water pipe flowing water pressure (hydraulic pressure) than by pump 14 force feeds water pressure
Power is high.Therefore, it is possible to it will be ensured to be certain from the water for the hot water that supplying hot water terminal 17 flows out more than, the comfortable of user is improved
Property.
Then, illustrate the action of the hot-water supply of present embodiment.
In the heating operating heated to the thermal medium for being stored in tank 11, control device 50 acts heat pump assembly 30, with
So that the refrigerant of high temperature and pressure is flowed into radiator 8, in addition, control switching valve 15 and pump 14, so that thermal medium is in Fig. 1 institutes
The direction cycle of the solid arrow shown.Refrigerant and thermal medium carry out heat exchange in radiator 8 as a result,.
At this point, the flow path that thermal medium represents as shown in Figure 1 in the solid line of switching valve 15.Thermal medium flows successively as a result,
It crosses the lower part of tank 11, switching valve 15, pump 14, switching valve 15, heat supply water heat exchanger 13, radiator 8, flowed into from the top of tank 11
To tank 11.
In addition, control device 50 starts the compressor 5 of heat pump assembly 30, by refrigerant compression to high pressure.It is compressed
And the refrigerant for becoming high temperature and pressure is flowed into radiator 8 of the configuration in the inside of tank unit 2 by connecting pipings 23.
In radiator 8, become the refrigerant of the gas phase state of high temperature and pressure and by pumping 14 force feeds and in thermal medium circuit 4
The thermal medium of flowing carries out heat exchange.Thermal medium is heated as a result, generates the thermal medium of high temperature.The thermal medium of high temperature is from heat dissipation
Device 8 flows, and be flowed into tank 11 from the top of tank 11 after flowing out in thermal medium circuit 4.
Refrigerant is condensed by carrying out heat exchange in radiator 8 and thermal medium, becomes the gas-liquid two-phase shape of low-temp low-pressure
State or liquid condition.Later, refrigerant is depressurized using decompressor 6 and is expanded, and is flowed into evaporator 7.In evaporator 7
In, refrigerant carries out heat exchange with the air blown by Air Blast fan 9, evaporates and becomes gas phase state.Gas phase state should be become
Refrigerant flow again into compressor 4.
In this way, refrigerant recycles in refrigerant circuit 3, in addition, thermal medium recycles in thermal medium circuit 4, by
Refrigerant and thermal medium carry out heat exchange in radiator 8, are heated in the thermal medium of the internal storage of tank 11.Moreover, control dress
Put 50 can also control heat pump assembly 30 and pump 14 rotating speed so that by the thermistor 22e thermal mediums detected temperature into
For specified value.
It is heated by radiator 8 and is flowed into tank 11 from the top of tank 11 as the thermal medium of high temperature.The heat of high temperature is situated between as a result,
Matter is stored in tank 11.The temperature for the thermal medium being stored in as a result, in tank 11 is that the top of tank 11 becomes temperature higher, tank 11
To become temperature lower for lower part.
That is, form the thermal stratification of thermal medium in the inside of tank 11.The chain-dotted line of the inside of tank 11 shown in FIG. 1 represents should
Thermal stratification, right is more as high temperature.As shown in Figure 1, the thermal medium inside tank 11 is divided into substantially certain temperature
High-temperature region, the migration region of sharp temperature drop, low temperature region.
The thermal medium flowed out in heating operates from the lower part of tank 11 is the thermal medium in low temperature region.As a result, until tank
Whole thermal mediums inside 11 become high temperature, and the temperature rise for being flowed into the thermal medium of radiator 8 is suppressed.It is being flowed into heat dissipation
The running efficiency of heat pump assembly 30 is high when the heat medium temperature of device 8 is low.The running efficiency of heat pump assembly 30 is improved as a result,.
In this way, in heating operates, refrigerant and thermal medium carry out heat exchange in radiator 8, and the heat for generating high temperature is situated between
Matter.
Herein, control device 50 control switching valve 15 so that heating operate in refrigerant flow path 8a flow direction and
The flow direction of thermal medium flow path 8b is opposite.That is, in the temperature change of the refrigerant of refrigerant flow path 8a flowings and in thermal medium
The temperature change of the thermal medium of flow path 8b flowings is opposite.Refrigerant is flowed into refrigerant flow path 8a in the state of temperature height, with
Thermal medium carry out heat exchange, and become than flow into when temperature it is low and from refrigerant flow path 8a flow out.On the other hand, thermal medium is low
Thermal medium flow path 8b is flowed under temperature state, with refrigerant carry out heat exchange, and with flow into when compare as high temperature and from heat Jie
Mass flow road 8b flows out.Refrigerant and thermal medium carry out heat exchange in a state that temperature difference is ensured more than certain as a result,.By
This, improves the heat exchanger effectiveness in radiator 8.Therefore, the running efficiency of heat pump assembly 30 improves.
Then, illustrate that it is acted for by the supplying hot water operating of hot water supply to supplying hot water terminal 17.Supplying hot water operates
Water heating is generated into the heat for being supplied to supplying hot water terminal 17 by using the thermal medium for the high temperature being stored in inside tank 11
The operating of water.
When supplying hot water terminal 17 is opened by user, the water inside heat supply water loop 16 is flowed out from supplying hot water terminal 17.Stream
When amount switch 10 detects the flowing of water of heat supply water loop 16, start supplying hot water operating.Moreover, supplying hot water operating can also example
Such as indicated and since remote controler (not shown) by user.
Flowing water heats and generates hot water in heat supply water loop 16, and supplies hot water from supplying hot water terminal 17
In supplying hot water operating, control device 50 controls switching valve 15 and pump 14, so that the side of thermal medium dotted arrow shown in Fig. 1
To cycle.Thermal medium and water carry out heat exchange in heat supply water heat exchanger 13 as a result,.Moreover, control device 50 can also be controlled
The rotating speed of system pump 14, so that the temperature of handy thermistor 22d detections becomes specified value.
In supplying hot water operating, the control of control device 50 pump 14 and switching valve 15, so that the void that thermal medium is shown in Fig. 1
Direction flowing shown in line arrow.It is stored in the thermal medium of the high temperature on the top in tank 11 as a result, after the outflow of the top of tank 11
It is flowed in thermal medium circuit 4, by being flowed into heat supply water heat exchanger 13 after radiator 8.It is flowed into heat supply water heat exchanger
13 thermal medium and flow through heat supply water loop 16 and be flowed into heat supply water heat exchanger 13 water carry out heat exchange.It generates as a result,
Hot water.The hot water of generation is flowed in heat supply water loop 16, and is flowed out from supplying hot water terminal 17.
Herein, heat supply water heat exchanger 13 be configured to supplying hot water operate in make thermal medium flow path 13a flow direction and
The flow direction of supplying hot water flow path 13b is opposite.That is, in the temperature change of the thermal medium of thermal medium flow path 13a flowings and in heat supply
The temperature change of flow road 13b flowing waters is opposite.Thermal medium is flowed into thermal medium flow path 13a in the state of temperature height, with
Water carry out heat exchange, and become than flow into when temperature it is low and from thermal medium flow path 13a flow out.On the other hand, water is low in temperature
Supplying hot water flow path 13b is flowed under state, heat exchange is carried out with thermal medium, and it is high and from heat supply flow to become temperature during than flowing into
Road 13b flows out.Thermal medium and water carry out heat exchange in a state that temperature difference is ensured to be more than centainly as a result,.As a result, in heat supply
Heat exchanger effectiveness in water heat exchanger 13 improves.
The thermal medium that carrying out heat exchange and temperature with water in heat supply water heat exchanger 13 reduces flows through switching valve 15, pump
14th, switching valve 15 are flowed into tank 11 from lower part.When carrying out supplying hot water operating as a result, in the inside of tank 11, low temperature region
The amount of thermal medium increases.In this way, heat exchange is carried out with water in heat supply water heat exchanger 13 and thermal medium that temperature reduces from
The lower part of tank 11 is flowed into low temperature region.Therefore, it is possible to maintain the thermal stratification inside tank 11, and water is heated.
By using the loop direction of switching device switching thermal medium, the thermal stratification of the thermal medium inside tank 11 is maintained,
And implement supplying hot water operating and heating operating.Thereby, it is possible to improve the running efficiency of heat pump assembly 30.Furthermore it is possible to it adjusts
The temperature of the hot water supplied to supplying hot water terminal 17.
Moreover, the situation of the temperature of hot water for example flowed out in user using remote control control from supplying hot water terminal 17
Under, control device 50 can control the rotating speed of pump 14, so that becoming setting by the temperature of the thermistor 22d hot water detected
Temperature.The hot water of the temperature of user's setting is supplied from supplying hot water terminal 17 as a result,.In addition, there is temperature in supplying hot water terminal 17
In the case of spending control function, the rotating speed of control pump 14 is not needed to adjust the temperature of the hot water of generation, as long as to supplying hot water end
The hot water of temperature as defined in 17 supply of end.
In such manner, it is possible to switch the loop direction of thermal medium using switching valve 15.That is, in heating operates, thermal medium is successively
Flow through the lower part of tank 11, switching valve 15, pump 14, switching valve 15, heat supply water heat exchanger 13, radiator 8, tank 11 top.Separately
On the one hand, in supplying hot water operating, thermal medium flows successively through the top of tank 11, radiator 8, heat supply water heat exchanger 13, switching
Valve 15, pump 14, switching valve 15, tank 11 lower part.
As a result, when control device 50 implements heating operating, refrigerant and thermal medium relatively flow in radiator 8,
Thus heat exchanger effectiveness improves.And then when control device 50 implements supplying hot water operating, heat is situated between in heat supply water heat exchanger 13
Matter and water phase flow over the ground, and thus heat exchanger effectiveness improves.Thereby, it is possible to realize the energy-saving of hot-water supply.
Further, since using a thermal medium circuit 4 and a pump 14, thermal medium can be in different loop direction stream
It is dynamic, so the running efficiency of hot-water supply can be improved, and it can realize the miniaturization of hot-water supply and cost effective.
In addition, cutting down the number of pump 14, the noise generated due to 14 action of pump, the reduction of vibration can be realized.
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 prevent from pressing
The resonance of vibration that the vibration that contracting machine 5 is acted and generated is acted with pump 14 and generated.Make lower noise as a result, and cut down every
The usage amount of sound material can realize the cost effective of hot-water supply.
Moreover, switching valve 15 is more cheap than pump 14, the control circuit also control than acting pump 14 for acting switching valve 15
Circuit is cheap.As a result, when comparing using two pumps 14 to make situation that thermal medium recycles and using pumping 14 and switching valve 15
During the situation for recycling thermal medium, and thermal medium cycle is made to be low cost with pump 14 and switching valve 15.
Then, illustrate to carry out the heating of thermal medium, and recycle thermal medium by making the action of heat pump assembly 30, next pair
Supplying hot water terminal 17 supplies the supplying hot water auxiliary rotating of hot water.
When carrying out supplying hot water operating in a state that the thermal medium in the high-temperature region inside tank 11 is few, even with supplying
The heat exchange of thermal medium and water that hot water heat exchanger 13 carries out, cannot abundant quilt there is also flowing water in heat supply water loop 16
The situation of heating.
Detected value of the control device 50 based on thermistor 22a~22c mounted on tank 11 is able to detect that inside tank 11
High-temperature region thermal medium it is fewer than specified value.In a state that the thermal medium in high-temperature region is fewer than specified value, need to
In the case that supplying hot water terminal 17 supplies hot water, control device implementation concurrently carries out the thermal medium realized using heat pump assembly 30
Heating and using thermal medium realize water heating supplying hot water auxiliary rotating.Moreover, specified value in this case being capable of root
It is set according to the design value of the hot-water supplies such as the thermal capacity that can be stored in tank 11, the lift for pumping 14.
Moreover, supplying hot water auxiliary rotating can also be indicated to implement by user from remote controler.
In supplying hot water auxiliary rotating, control device 50 includes heat pump assembly 30, pump 14 and switching valve 15.It is auxiliary in supplying hot water
It helps in operating, refrigerant recycles in the direction of the inside of refrigerant circuit 3 solid arrow shown in Fig. 1.Thermal medium is situated between in heat
The direction cycle of the inside in matter circuit 4 dotted arrow shown in Fig. 1.That is, thermal medium flows successively through the top of tank 11, radiator
8th, the lower part of heat supply water heat exchanger 13, switching valve 15, pump 14, switching valve 15, tank 11.
In supplying hot water auxiliary rotating and supplying hot water operating, the loop direction of thermal medium is identical.Confession is flowed into from running water pipe
The water of hot-water return 16, with thermal medium progress heat exchange and as the hot water of set point of temperature in heat supply water heat exchanger 13, and
It is flowed to supplying hot water terminal 17.
In such manner, it is possible to the thermal medium before being flowed into heat supply water heat exchanger 13 is heated with radiator 8.As a result,
Even if in the case where the thermal medium in high-temperature region is few, the temperature of the thermal medium of heat supply water heat exchanger 8 can be flowed into
Rise, and the thermal medium of heating is made to be flowed into heat supply water heat exchanger 13.
Thereby, it is possible to heat generation hot water to water in heat supply water heat exchanger 13, the high heat supply of usability can be realized
Water installations.
Moreover, in the case where implementing supplying hot water auxiliary rotating, preferably radiator 8 and heat supply water heat exchanger 13 is configured
Inside same housing.Thereby, it is possible to reduce the heat dissipation of the thermal medium circuit 16 between radiator 8 and heat supply water heat exchanger 13
Heat (radiation loss).
In addition, when the hot water water flowed out from supplying hot water terminal 17 is big, there is the thermal medium in heat supply water heat exchanger 13 to put
Situation more than the heat ratio gone out the heat that thermal medium absorbs in heat pump assembly 30.Implementing supplying hot water auxiliary rotating as a result,
In the case of, compared with no situation for carrying out supplying hot water auxiliary rotating, the heating efficiency that preferably makes heat pump assembly 30 it is big (such as
20kW)。
Moreover, detect the thermal medium in the high-temperature region inside tank 11 state fewer than specified value in control device 50
Under, in the case where implementing supplying hot water auxiliary rotating, preferably control device 50 is controlled such that the heating of heat pump assembly 30
Ability is maximum.
Moreover, in supplying hot water auxiliary rotating, due to the flow direction of refrigerant flowed in refrigerant flow path 8a and in heat
The flow direction of the thermal medium of medium flow path 8b flowings becomes same direction, so the running efficiency of heat pump assembly 30 reduces.By
This, remote controler preferably has the selecting unit for choosing whether to implement supplying hot water auxiliary rotating automatically.That is, it is preferred that with heat supply is forbidden
Water installations automatically carry out the unit of supplying hot water auxiliary rotating.User is able to select whether to implement to operate with supplying hot water as a result,
The supplying hot water auxiliary rotating low compared to 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 for including more hardness components.Illustrate its reason below
By.
The Japan that landform is dangerously steep under normal circumstances, rivers and creeks length is short, the hardness dissolved in rivers and creeks flowing water into
The amount divided is few, and the water supplied from running water pipe is that the situation of soft water is more.Moreover, according to region difference, there is also hard in water
Spend the place more than ingredient.Additionally, there are the situations that underground water includes more hardness components.
On the other hand, it is molten in rivers and creeks circulating water in gentle, rivers and creeks the length length of landform, such as Europe or China
The amount of the hardness components of solution is more, more for the situation of hard water from the water that running water pipe supplies compared with Japan.
The hardness components such as dissolved with more calcium carbonate in the hard water.The hardness components have the temperature with dampening
It increases and solubility reduction and the property being precipitated as incrustation scale.As a result, in the high-temperature portion of hot-water supply, incrustation scale is precipitated and attached
It on flow path, flow path is blocked sometimes.In addition, even if flow path does not block, the pressure loss when flow path makes attachment incrustation scale
Increase, and the running efficiency of hot-water supply deteriorates.
For example, calcium carbonate (the CaCO as one of hardness components3) solubility, as shown in Fig. 2, with when the temperature of water
The tendency reduced during rising.That is, water more becomes high temperature, easier be precipitated as incrustation scale of the hardness components in water and be attached to flow path
On.
In addition, under the situation of water of the sustainable supply comprising more hardness components, precipitation and the incrustation scale of incrustation scale are continuously generated
Attachment, so incrustation scale easily deposits.The precipitation of incrustation scale easily becomes the radiator of the highest temperature among hot-water supply as a result,
The thermal medium flow path 8b of 8 (heating units) nearby is generated.Further, since water sustainable supply more than hardness components is to thermal medium flow path
8b and the deposition for easily generating incrustation scale.
In contrast, the hot-water supply of present embodiment makes thermal medium circuit 4 be loop circuit.Therefore, thermal medium circuit 4
Interior pressure rises, and in the case of a small amount of thermal medium is discharged from piping 21, supplements thermal medium circuit 4 new water.
As a result, due to the thermal medium recycled in thermal medium circuit 4, do not use alternatively for a long time, new hardness will not be supplied
Ingredient, so precipitation and the deposition of the incrustation scale in thermal medium flow path 8b can be inhibited.
Moreover, fresh water is always supplied to the supplying hot water flow path 13b of heat supply water heat exchanger 13.Herein, to tap,
The maximum temperature for the hot water that the supplying hot waters such as bathtub, shower head terminal 17 supplies is 50 degree or so.As a result, compared with radiator 8
The precipitation of incrustation scale is not likely to produce in the low heat supply water heat exchanger 13 of temperature.
In addition, oral siphon 18 is from 16 branch of heat supply water loop than heat supply water heat exchanger 13 on the upstream side, with tank 11
Lower part connects, and is configured with pressure reducing valve 19 in oral siphon 18.When by the way that hot-water supply operating is made to be expanded and thermal medium, heat is situated between
When pressure inside matter circuit 4 rises, a part for the thermal medium expanded is released from the piping 21 with relief valve 20.Work as heat
The amount of thermal medium inside medium loop 4 is reduced, and when more than the pressure reduction to certain value inside thermal medium circuit 4, water is from confession
Hot-water return 16 is flowed into oral siphon 18, and water (thermal medium) is supplemented to thermal medium circuit 4.Pressure inside thermal medium circuit 4 as a result,
Power automatically adjusts.Therefore, user does not need to supplement thermal medium.Moreover, in the case where replacing pressure reducing valve 19 using shut-off valve,
By opening shut-off valve, water (thermal medium) can be supplied to thermal medium circuit 4 more than pressure reduction to certain value.
Moreover, the heat pump unit 1 in present embodiment is configured with compressor 5, decompressor 6, evaporator 7, Air Blast fan
9.In addition, heat pump unit 1 and tank unit 2 are connected by the connecting pipings 23 that refrigerant flows.Heat pump unit 1 and air tune as a result,
The outdoor unit of section machine is identical structure.Thereby, it is possible to realize sharing for the outdoor unit of air conditioner and heat pump unit 1.Moreover,
When refrigerant is R410A refrigerants usually used in air-conditioning, the connection of the connecting pipings 23 during construction becomes easy.
Further, since the connecting pipings 23 that heat pump unit 1 and tank unit 2 are recycled by refrigerant connects, so connection
Refrigerant inside piping 23 will not freeze, in addition also without freeze prevention operating etc..
(embodiment 2)
Fig. 3 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 2.In the present embodiment pair with implementing
Identical symbol is added in the identical place of mode, and the description thereof will be omitted.
The hot-water supply of present embodiment has the lower part of tank 11, radiator 8, heat supply water heat exchanger 13, tank 11
The thermal medium circuit 4 that top is annularly formed by connecting.In addition, the thermal medium circuit 4 between the lower part of tank 11 and radiator 8 is matched
It is equipped with pump 14 and switching valve 15.
When implement heating operating when, thermal medium in thermal medium circuit 4 successively the lower part of tank 11, switching valve 15, pump 14,
Radiator 8, heat supply water heat exchanger 13, tank 11 top cycle.In addition, when implementing supplying hot water operating, thermal medium is situated between in heat
Successively in the top of tank 11, heat supply water heat exchanger 13, radiator 8, switching valve 15, pump 14, switching valve 15, tank in matter circuit 4
11 lower part cycle.
According to the structure, when implementing supplying hot water operating, the thermal medium of the high temperature flowed out from the top of tank 11 flows into first
To heat supply water heat exchanger 13, to being heated in 16 flowing water of heat supply water loop.Thereby, it is possible to reduce from the top of tank 11 and confession
The heat (radiation loss) that thermal medium circuit 4 between hot water heat exchanger 13 is radiated.
(embodiment 3)
Fig. 4 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 3.In the present embodiment pair with implementing
Identical symbol is added in the identical place of mode, and the description thereof will be omitted.
The hot-water supply of present embodiment has the heat pump unit 1 for being configured with heat pump assembly 30.In heat pump unit 1
Portion is configured with refrigerant circuit 3 and Air Blast fan 9.Refrigerant circuit 3 is the compressor 5 compressed to refrigerant, is freezing
Between agent and thermal medium carry out heat exchange radiator 8, make refrigerant depressurize decompressor 6, between refrigerant and air
What the evaporator 7 of progress heat exchange was annularly formed by connecting successively by refrigerant piping.As refrigerant, carbon dioxide is used.
In addition, the connecting pipings 24 that heat pump unit 1 and tank unit 2 are recycled using thermal medium is connected with each other.That is, 24 structure of connecting pipings
Into the part in thermal medium circuit 4.
As the refrigerant recycled in refrigerant circuit 3, global warming potential (Global Warming can be used
Potential) be zero (0) carbon dioxide.Compared with the HFC refrigerant that R410A or R32 etc. is always used, carbon dioxide
Critical point temperature it is low.As a result, using carbon dioxide as refrigerant in use, forming the on high-tension side pressure of refrigerant circuit 3
The supercritical steam cycle of postcritical.
Thermal medium can be heated to high temperature (such as 85 degree) compared with the HFC refrigerants such as R410A or R32 as a result,.This
Outside, due to can thermal medium be heated to high temperature, so can increase the heat being stored in tank 11, and tank can be realized
11 miniaturization.
On the other hand, using carbon dioxide as refrigerant in use, the on high-tension side pressure of refrigerant circuit 3 is with using
The situation of HFC refrigerant is compared and is increased (such as 8MPa).Thus, it is desirable to improve the resistance to pressure of refrigerant piping.
The hot-water supply of present embodiment, by radiator 8 be configured heat pump unit 1, heat pump unit 1 and tank unit 2 by
The connecting pipings 24 that thermal medium is recycled connects.As a result, in connecting pipings 24 without flowing refrigerant.It does not need to make as a result,
The resistance to pressure of connecting pipings 23 excessively increases.Thereby, it is possible to make construction operation during setting hot-water supply easy.
(embodiment 4)
Fig. 5 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 4.In the present embodiment pair with implementing
Identical symbol is added in the identical place of mode, and the description thereof will be omitted.
The hot-water supply of present embodiment includes heat pump assembly 30, thermal medium circuit 4, heat supply water loop 16, oral siphon
18th, it is configured with the integrated unit 25 of piping 21.
Thereby, it is possible to shorten construction time during setting hot-water supply.Further, since without connecting pipings, so energy
Enough prevent the heat dissipation from connecting pipings.Furthermore it is possible to radiator 8 and heat supply water heat exchanger 13 is made closely to be configured, it can
Reduce the radiation loss from thermal medium circuit 4.
(embodiment 5)
Fig. 6 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 5.In the present embodiment pair with implementing
Identical symbol is added in the identical place of mode, and the description thereof will be omitted.
The hot-water supply of present embodiment, as shown in fig. 6, including it is being connect with the top of tank 11, have can will flow
Road is closed and the supply pipe 27 of open shut-off valve 26.
In addition, tank 11 has the liquid level sensor 28 that the amount of the thermal medium to being stored in tank 11 is detected.Control dress
The reduction of 50 amounts that thermal medium is detected using liquid level sensor 28 is put, and is shown on a remote control, and can notify user.
Annularly connect moreover, thermal medium circuit 4 is tank 11, switching valve 15, pump 14, heat supply water heat exchanger 13, radiator 8
The loop circuit for connecing and completing.The water more than hardness components may not flow into radiator 8 as a result,.Thereby, it is possible to inhibit the precipitation of incrustation scale
And deposition.It is situated between moreover, the thermal medium circuit 4 between the top of radiator 8 and tank 11 adjusts heat when being configured with thermal medium expansion
The expansion drum 29 of pressure inside matter circuit 4.
When the amount of thermal medium is reduced, open shut-off valve 26, inside supplemental heat from supply pipe 27 to tank 11 that can be from is situated between
Matter.
Anti-icing fluid is recycled as thermal medium in thermal medium circuit 4.As thermal medium, principal component can be water, this
Thermal medium outer or with the specific heat or pyroconductivity higher than water.For example, it can be total to used as gallium, indium, tin
The gallium-indium-tin alloy (Galinstan) of peritectic alloy.Thereby, it is possible to prevent from freezing in the thermal medium that thermal medium circuit 4 is flowed.
(embodiment 6)
Fig. 7 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 6.In the present embodiment pair with implementing
Identical symbol is added in the identical place of mode, and the description thereof will be omitted.
The hot-water supply of present embodiment has pump of the reversible pump 31 as force feed thermal medium.
Reversible pump 31 has the function of to make the loop direction reversion in the thermal medium of 4 internal flow of thermal medium circuit.It that is, can
Inverse pump 31 works as the switching device for inverting the loop direction of thermal medium.It can just be changed without using switching valve as a result,
The loop direction of thermal medium.
In heating operates, control device 50 controls reversible pump 31, so that thermal medium solid arrow shown in Fig. 7
Direction recycles.Thermal medium in thermal medium circuit 4 flows successively through the lower part of tank 11, reversible pump 31, heat supply water heat exchanger 13, dissipates
The top of hot device 8, tank 11.
At this point, control device 50 controls heat pump assembly 30, so that the refrigerant of high temperature and pressure is flowed into radiator 8.By
This, the refrigerant and thermal medium for being flowed into radiator 8 carry out heat exchange, generate the thermal medium of high temperature.The thermal medium of generation is in warm
Medium loop 4 flows, and is flowed into tank 11 from the top of tank 11.As a result, in the thermal medium of the internal storage high temperature of tank 11.And
And control device 50 can also control reversible pump 31 and heat pump assembly 30, so that the detected value of thermistor 22e becomes regulation
Value.
In supplying hot water operating, control device 50 controls reversible pump 31, so that the dotted arrow that thermal medium is shown in Fig. 7
Direction cycle.Thermal medium in thermal medium circuit 4 flow successively through the top of tank 11, radiator 8, heat supply water heat exchanger 13,
The lower part of reversible pump 31, tank 11.
Thermal medium circuit 4 internal flow thermal medium in heat supply water heat exchanger 13 with being flowed in heat supply water loop 16
Dynamic water carries out heat exchange.Hot water is generated as a result,.
For example, in the case of the temperature of hot water flowed out in user using remote controler setting from supplying hot water terminal 17, control
Device 50 processed is flowed into the temperature of heat supply water heat exchanger 13 using thermistor 22e detections, and reversible pump is controlled based on detected value
31 rotating speed, so that becoming the temperature of setting by the temperature of the thermistor 22d hot water detected.
Moreover, in the case where supplying hot water terminal 17 can adjust temperature, control device 50 does not need to adjust to confession
Hot water terminal 17 supply hot water temperature and suitable control reversible pump 31 rotating speed, as long as by hot water more than set point of temperature to
Supplying hot water terminal 17 supplies.
In this way, switching the loop direction of thermal medium by using reversible pump 31, a thermal medium circuit 4 and one can be utilized
A reversible pump 31 implements both heating operating and supplying hot water operating.
(embodiment 7)
Fig. 8 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 7.In the present embodiment pair and other
The identical place of embodiment add identical symbol, the description thereof will be omitted.
As shown in figure 8, the thermal medium circuit 4 of the hot-water supply of present embodiment includes being provided with the mainstream of radiator 8
The road 4a and secondary flow path 4b for being provided with heat supply water heat exchanger 13.
Secondary flow path 4b connections are arranged on the branch point P in the thermal medium circuit 4 between radiator 8 and switching valve 15 and are arranged on
The branch point Q in the thermal medium circuit 4 between the top of radiator 8 and tank 11.Make by radiator 8 that is, secondary flow path 4b has to be used as
The function of logical bypass.
Also, it is preferred that thermistor 22f is arranged on the thermal medium circuit 4 between branch point P and switching valve 15, thermistor
22e is arranged on the thermal medium circuit 4 between the top of branch point Q and tank 11.Moreover, it is reversible pump 31, is not provided in pump 14
In the case of switching valve 15, fulcrum P is arranged on the thermal medium circuit 4 between radiator 8 and reversible pump 31.At this point, thermistor
22f is preferably provided between branch point P and reversible pump 31.
It is provided with to make thermal medium selectively in primary flow path 4a and the arbitrary middle stream of secondary flow path 4b in thermal medium circuit 4
Dynamic flow passage selector device (not shown).Thermal medium circuit 4 as a result, makes thermal medium in primary flow path 4a situations about flowing and is making
Thermal medium has multiple the circulation paths in the case where secondary flow path 4b flows.
Flow passage selector device can be realized in multiple methods.For example, by can in primary flow path 4a and secondary flow path 4b settings
The shut-off valve of cut-off flow path can realize flow passage selector device.That is, thermal medium is made to make in the case where primary flow path 4a flows
The 1st shut-off valve for being arranged on primary flow path 4a is opened, and makes to be arranged in the state of the 2nd shut-off valve closing of secondary flow path 4b, is made
14 operating of pump.On the other hand, make thermal medium in the case where secondary flow path 4b flows, closing the 1st shut-off valve, making to set
It puts in a state that the 2nd shut-off valve of secondary flow path 4b is closed, operates pump 14.In addition, for example by branch point P or
Branch point Q setting triple valves can realize flow passage selector device.That is, in the case where thermal medium is made to be flowed in primary flow path 4a,
Triple valve is switched to primary flow path 4a sides, on the other hand, in the case where thermal medium is made to be flowed in secondary flow path 4b, by triple valve
Secondary flow path 4b sides are switched to, operate pump 14.Moreover, if flow passage selector device is configured to make thermal medium in mainstream
The arbitrary middle flowing of road 4a and secondary flow path 4b, then be not limited to these modes, can also make with other methods.
In heating operates, control device 50 controls pump 14, switching valve 15, flow passage selector device respectively, so that heat is situated between
The direction cycle of matter solid arrow shown in Fig. 8.Thermal medium is in lower part of the thermal medium circuit 4 via tank 11, switching valve as a result,
15th, pump 14, switching valve 15 are flowed to primary flow path 4a, are heated in thermal medium flow path 8b by heating unit 30, and be flowed into tank 11
Top.
In supplying hot water operating, the control of control device 50 pump 14, switching valve 15, flow passage selector device, so that thermal medium
The direction cycle of dotted arrow shown in Fig. 8.As a result, thermal medium in thermal medium circuit 4 from the top of tank 11 to secondary flow path
4b flows, will be in heat supply water loop 16 after flowing water heating, via switching valve 15, pump using heat supply water heat exchanger 13
14th, switching valve 15 is flowed into the lower part of tank 11.
In this way, the primary flow path 4a for being equipped with radiator 8 is provided in thermal medium circuit 4 and is equipped with heat supply water heat exchanger
13 secondary flow path 4b is used separately primary flow path 4a and secondary flow path 4b, and thus, it is possible to reduce the heat dissipation damage from thermal medium circuit 4
It loses.That is, since control device 50 is controlled such that in heating operates thermal medium is only flowed in primary flow path 4a, so can
Reduce the radiation loss of the thermal medium in heat supply water heat exchanger 13.Further, since control device 50 is controlled such that
Thermal medium is only flowed in secondary flow path 4b in supplying hot water operating, so the radiation loss of the thermal medium in radiator 8 can be reduced.This
Outside, a pump can be utilized, carries out the heating of thermal medium and the heating of the water supplied to supplying hot water terminal 17.As a result, energy
Enough realize minimizing, being cost effective for hot-water supply.
(embodiment 8)
Fig. 9 is the schematic structural 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 to be used as heating unit.Heat pump assembly 30
With refrigerant circuit 3.
In addition, as shown in figure 9, the hot-water supply of present embodiment includes heat pump unit 1, tank unit 2 and carries out heat supply
The control device 50 of the control of water installations.Heat pump unit 1 and tank unit 2 are connected with each other using connecting pipings 23.Present embodiment
It is the structure used from the water that running water pipe supplies as thermal medium.
The part for refrigerant circuit 3 that refrigerant is recycled in inside is accommodated in heat pump unit 1.In tank unit
A part for refrigerant circuit 3 is accommodated in 2 and thermal medium circuit 4 that thermal medium is recycled.
Refrigerant circuit 3 is the compressor 5 compressed to refrigerant, configuration in threeway (three-way) heat exchanger
60 refrigerant flow path 60a, the decompressor 6 for making refrigerant decompression and the evaporation that heat exchange is carried out between refrigerant and air
Device 7 is annularly connected and is formed using refrigerant piping successively.Threeway heat exchanger 60 is configured in tank unit 2, compressor
5th, decompressor 6, evaporator 7 are configured in heat pump unit 1.Moreover, as decompressor 6 for example using electric expansion valve.This
Outside, the Air Blast fan 9 for blowing to evaporator 7 is configured in heat pump unit 1.
The thermal medium circuit 4 that thermal medium is recycled is the lower part for the tank 11 for storing thermal medium, configuration in threeway heat exchange
The thermal medium flow path 60b of device 60, the top (being upper side or top in Fig. 9) of tank 11 are matched successively using thermal medium
Pipe is annularly connected and is formed.
Threeway heat exchanger 60 includes refrigerant flow path 60a, thermal medium flow path 60b, supplying hot water flow path 60c.Heat supply flow
The part for the heat supply water loop 16 of water flowing that 60c compositions in road are supplied from running water pipe.Threeway heat exchanger 60 is in refrigerant
In the thermal medium and supplying hot water flow path 60c that are flowed in the refrigerant that is flowed in flow path 60a, thermal medium flow path 60b flowing water it
Between carry out heat exchange.That is, threeway heat exchanger 60 is the radiator of heat exchange to be carried out between refrigerant and thermal medium and in heat
The heat supply water heat exchanger that heat exchange is carried out between medium and water is integrally formed and forms.Refrigerant flow path 60a, thermal medium stream
Road 60b, supplying hot water flow path 60c are arranged side-by-side successively.
Thermal medium circuit 4 between the top of threeway heat exchanger 60 and tank 11 is configured with the temperature of detection thermal medium
Thermistor 22e.It is situated between in addition, the thermal medium circuit 4 between the lower part of threeway heat exchanger 60 and tank 11 is configured with detection heat
The thermistor 22f of the temperature of matter.
In addition, the thermal medium circuit 4 between tank 11 and threeway heat exchanger 60 is configured with what is recycled for making thermal medium
Pump 14.Moreover, the thermal medium circuit 4 between tank 11 and heat supply water heat exchanger 13 is configured with switching valve 15.Switching valve 15 is made
The loop direction of thermal medium is inverted for switching device by switching the flow path in thermal medium circuit 4.That is, using switching valve 15,
Thermal medium is allowed hand over to flow out from the top of tank 11 and the loop direction and thermal medium that flow into from the lower part of tank 11 are under tank 11
The loop direction that portion flows out and flowed into from the top of tank 11.
Switching valve 15 is provided with entrance or outlet in 4 directions, allows hand over the loop direction of thermal medium.Such as Fig. 9 institutes
Show, switching valve 15 allows hand over the flow path represented by solid line and the flow path being represented by the dotted line.
Heat supply water loop 16 is that the water from running water pipe is flowed to the supplying hot waters such as tap, bathtub and shower head terminal 17
Circuit.In threeway heat exchanger 60, hot water is generated.The hot water of generation flows in heat supply water loop 16, from supplying hot water end
End 17 is supplied to user.Heat supply water loop 16 between threeway heat exchanger 60 and supplying hot water terminal 17 is configured with detection water
Temperature thermistor 22d and detection water flowing flow switch 10.
In addition, oral siphon 18 leans on upstream from than heat supply water heat exchanger 13 on the flow direction of the water of heat supply water loop 16
16 branch of heat supply water loop of side, and connect with the lower part of tank 11.Oral siphon 18 has the pressure made in 18 flowing water of oral siphon
The pressure reducing valve 19 of power reduction.When pressure inside thermal medium circuit 4 is declined more than certain value, it is flowed into the water of heat supply water loop 16
A part flowed to oral siphon 18, the lower part of tank 11 is flowed into via pressure reducing valve 19.That is, the hot-water supply of present embodiment
Using the water in thermal medium circuit 4 is flowed into from oral siphon 18 as thermal medium.Furthermore, it is also possible to instead of pressure reducing valve 19, energy is used
Enough flow paths by oral siphon 18 are closed or open shut-off valve.
Moreover, by piping 21 of the top of tank 11 connection with relief valve (safety valve) 20, composition returns thermal medium
The pressure removing device of pressure reduction in road 4.
In addition, tank 11 is provided with thermistor 22a, 22b, 22c of the temperature for measuring the thermal medium in tank 11.
Heat pump unit 1 and tank unit 2 are connected with each other using connecting pipings 23.In the present embodiment, in tank unit 2
Portion is configured with the radiator 8 that heat exchange is carried out between refrigerant and thermal medium.That is, connecting pipings 23 is to form refrigerant circuit
The refrigerant piping of 3 part.
Heat pump unit 1 and tank unit 2 are connected with each other in the setting of hot-water supply using connecting pipings 23.It moreover, will
Remote controler (not shown) and the lead connected of heat pump unit 1 and the power cord for connecting heat pump unit 1 and tank unit 2 are also in heat supply
It is connected during the setting of water installations.
After setting hot-water supply, it is open state that relief valve 20 is made in a state that supplying hot water terminal 17 is enclosed
When, it flows into, is flowed in oral siphon 18 and by pressure reducing valve 19, and flowed into heat supply water loop 16 in running water pipe flowing water
To tank 11.Later, water is also flowed into thermal medium circuit 4, and tank 11 and thermal medium circuit 4 are filled with water.Thermal medium circuit 4 and tank 11
Whether it is full of than water, can whether judgement from piping 21 be flowed out by water.If that is, water outflow, thermal medium circuit 4 and tank
11 inside is full of than water.The hot-water supply use of present embodiment is flowed into tank 11 and thermal medium after the flowing of oral siphon 18
The water in circuit 4 is as thermal medium.
Moreover, after tank 11 and thermal medium circuit 4 are full of by thermal medium (water), the thermal medium of the inside in thermal medium circuit 4
During reduction, the pressure reduction of the inside in tank 11 and thermal medium circuit 4.The pressure reduction of the inside in tank 11 and thermal medium circuit 4 is arrived
When more than certain value, the water for being flowed into heat supply water loop 16 flows in oral siphon 18, and automatically flows into the inside of tank 11.
The user oneself for not needing to hot-water supply as a result, carries out the supplement of thermal medium.
In addition, the water flowed into from running water pipe to heat supply water loop 16 due to the pressure of flowing water in running water pipe to
Supplying hot water terminal 17 flows.In general, running water pipe flowing water pressure (hydraulic pressure) than by pump 14 force feeds water pressure
Power is high.Therefore, it is possible to it will be ensured to be certain from the water for the hot water that supplying hot water terminal 17 flows out more than, the comfortable of user is improved
Property.
Then, illustrate the action of the hot-water supply of present embodiment.
In the heating operating heated to the thermal medium being stored in tank 11, control device 50 is with the refrigerant stream of high temperature and pressure
The mode entered to threeway heat exchanger 60 acts heat pump assembly 30, in addition, control switching valve 15 and pump 14, so that thermal medium
The direction cycle of solid arrow shown in Fig. 9.Refrigerant and thermal medium carry out hot friendship in threeway heat exchanger 60 as a result,
It changes.
At this point, thermal medium is as shown in Figure 9 in the flow path represented by solid line of switching valve 15.Thermal medium is successively as a result,
It flows through the lower part of tank 11, switching valve 15, pump 14, switching valve 15, threeway heat exchanger 60, and tank is flowed into from the top of tank 11
11。
In addition, control device 50 starts the compressor 5 of heat pump assembly 30, by refrigerant compression to high pressure.It is compressed
And the refrigerant for becoming high temperature and pressure is flowed into threeway heat exchanger 60 of the configuration inside tank unit 2 by connecting pipings 23.
In threeway heat exchanger 60, become the refrigerant of the gas phase state of high temperature and pressure and be situated between by pumping 14 force feeds in heat
The thermal medium that matter circuit 4 is flowed carries out heat exchange.Thermal medium is heated as a result, generates the thermal medium of high temperature.The thermal medium of high temperature
It is flowed, and tank 11 is flowed into from the top of tank 11 in thermal medium circuit 4 after the outflow of radiator 8.
Refrigerant is condensed by carrying out heat exchange in threeway heat exchanger 60 and thermal medium, becomes the gas-liquid of low-temp low-pressure
Two-phase state or liquid condition.Later, refrigerant is depressurized using decompressor 6 and is expanded, and is flowed into evaporator 7.It is steaming
It sends out in device 7, refrigerant carries out heat exchange with the air blown by Air Blast fan 9, evaporates and becomes gas phase state.Gas phase should be become
The refrigerant of state flows again into compressor 4.
In this way, refrigerant is recycled in refrigerant circuit 3, in addition, thermal medium recycles in thermal medium circuit 4, handed in threeway heat
Refrigerant and thermal medium carry out heat exchange in parallel operation 60, are thus stored in the thermal medium inside tank 11 and are heated.Moreover, control dress
Put 50 can also control heat pump assembly 30 and pump 14 rotating speed so that by the thermistor 22e thermal mediums detected temperature into
For specified value.
Tank 11 is flowed into from the top of tank 11 as the thermal medium of high temperature by heating in threeway heat exchanger 60.As a result,
The thermal medium of high temperature is stored in tank 11.The temperature for the thermal medium being stored in as a result, in tank 11 is that the top of tank 11 becomes temperature
Higher, it is lower that the lower part of tank 11 becomes temperature.
That is, form the thermal stratification of thermal medium in the inside of tank 11.Chain-dotted line inside tank 11 shown in Fig. 9 represents the temperature
Degree layering, more right side more high temperature.As shown in figure 9, the thermal medium inside tank 11 be divided into substantially certain temperature high-temperature region,
Migration region that temperature drastically reduces, low temperature region.
The thermal medium flowed out in heating operates from the lower part of tank 11 is the thermal medium in low temperature region.As a result, in tank 11
Internal thermal medium all as high temperature before, the temperature rise for being flowed into the thermal medium of heat exchanger 8 is suppressed.It is being flowed into
The running efficiency of heat pump assembly 30 is high when the heat medium temperature of radiator 8 is low.The running efficiency of heat pump assembly 30 is improved as a result,.
In this way, in heating operates, refrigerant and thermal medium carry out heat exchange in radiator 8, and the heat for generating high temperature is situated between
Matter.
Herein, control device 50 control switching valve 15 so that heating operate in refrigerant flow path 60a flow direction
It is opposite with the flow direction of thermal medium flow path 60b.That is, in the temperature change of the refrigerant of refrigerant flow path 60a flowings and in heat
The temperature change of the thermal medium of medium flow path 60b flowings is opposite.Refrigerant is flowed into refrigerant flow path in the state of temperature height
60a, with thermal medium carry out heat exchange, and become than flow into when temperature it is low and from refrigerant flow path 60a flow out.On the other hand, it is hot
Medium is flowed into thermal medium flow path 60b in a state that temperature is low, and heat exchange is carried out with refrigerant, and becomes temperature during than flowing into
Height is simultaneously flowed out from thermal medium flow path 60b.As a result, refrigerant and thermal medium in a state that temperature difference is ensured more than certain into
Row heat exchange.The heat exchanger effectiveness in threeway heat exchanger 60 improves as a result,.Therefore, the running efficiency of heat pump assembly 30 carries
It is high.
Then, illustrate that it is acted for by the supplying hot water operating of hot water supply to supplying hot water terminal 17.Supplying hot water operates
Water heating is generated into the heat for being supplied to supplying hot water terminal 17 by using the thermal medium for the high temperature being stored in inside tank 11
The operating of water.
When supplying hot water terminal 17 is opened by user, the water inside heat supply water loop 16 is flowed out from supplying hot water terminal 17.Stream
When amount switch 10 detects the flowing of water of heat supply water loop 16, start supplying hot water operating.Moreover, supplying hot water operating can also example
Such as indicated and since remote controler (not shown) by user.
Hot water is generated to being heated in 16 flowing water of heat supply water loop and the heat supply of hot water is supplied from supplying hot water terminal 17
During water transport turns, control device 50 controls switching valve 15 and pump 14, so that the direction of thermal medium dotted arrow shown in Fig. 9 is followed
Ring.Thermal medium and water carry out heat exchange in threeway heat exchanger 60 as a result,.Moreover, control device 50 can also control pump 14
Rotating speed, so that the temperature of handy thermistor 22d detections becomes specified value.
In supplying hot water operating, the control of control device 50 pump 14 and switching valve 15, so that the void that thermal medium is shown in Fig. 9
Direction flowing shown in line arrow.It is stored in the thermal medium of the high temperature on the top in tank 11 as a result, after the outflow of the top of tank 11
It is flowed in thermal medium circuit 4, and is flowed into threeway heat exchanger 60.The thermal medium of threeway heat exchanger 60 is flowed into supplying hot water
Circuit 16 is flowed and the water with being flowed into threeway heat exchanger 60 carries out heat exchange.Hot water is generated as a result,.The hot water of generation is supplying
Hot-water return 16 flows, and is flowed out from supplying hot water terminal 17.
Herein, control device 50 control switching valve 15 so that supplying hot water operating in thermal medium flow path 60b flowing side
To opposite with the flow direction of supplying hot water flow path 60c.That is, thermal medium flow path 60b flowing heat mediums temperature change with supplying
The temperature change of hot water flow path 60c flowing waters is opposite.Thermal medium is flowed into thermal medium flow path 60b in the high state of temperature, with
Water carry out heat exchange, and become than flow into when temperature it is low and from thermal medium flow path 60b flow out.On the other hand, water is low in temperature
Supplying hot water flow path 60c is flowed under state, heat exchange is carried out with thermal medium, and it is high and from heat supply flow to become temperature during than flowing into
Road 60c flows out.Thermal medium and water carry out heat exchange in a state that temperature difference is ensured to be more than centainly as a result,.As a result, in threeway
Heat exchanger effectiveness in heat exchanger 60 improves.
In threeway heat exchanger 60 with water carry out heat exchange, the thermal medium that temperature reduces flow through switching valve 15, pump 14,
Switching valve 15, and flowed into from lower part to tank 11.When carrying out supplying hot water operating as a result, in the inside of tank 11, the heat in low temperature region
The amount of medium increases.In this way, heat exchange is carried out with water in threeway heat exchanger 60 and thermal medium that temperature reduces from tank 11
Lower part be flowed into low temperature region.Therefore, it is possible to maintain the thermal stratification inside tank 11, and water is heated.
By using the loop direction of switching device switching thermal medium, the thermal stratification of the thermal medium inside tank 11 is maintained,
And implement supplying hot water operating and heating operating.Thereby, it is possible to improve the running efficiency of heat pump assembly 30.Furthermore it is possible to it adjusts
The temperature of the hot water supplied to supplying hot water terminal 17.
Moreover, the situation of the temperature of hot water for example flowed out in user using remote control control from supplying hot water terminal 17
Under, control device 50 can control the rotating speed of pump 14, so that becoming setting by the temperature of the thermistor 22d hot water detected
Temperature.The hot water of the temperature of user's setting is supplied from supplying hot water terminal 17 as a result,.In addition, there is temperature in supplying hot water terminal 17
In the case of spending control function, the rotating speed of control pump 14 is not needed to particularly to adjust the temperature of the hot water of generation, as long as will rule
The hot water of constant temperature degree is supplied to supplying hot water terminal 17.
In such manner, it is possible to switch the loop direction of thermal medium using switching valve 15.That is, in heating operates, thermal medium is successively
Flow through the lower part of tank 11, switching valve 15, pump 14, switching valve 15, threeway heat exchanger 60, tank 11 top.On the other hand, it is supplying
In hot water operating, thermal medium flows successively through the top of tank 11, threeway heat exchanger 60, switching valve 15, pump 14, switching valve 15, tank
11 lower part.
When control device 50 implements heating operating as a result, refrigerant and thermal medium be relatively in threeway heat exchanger 60
Flowing, thus heat exchanger effectiveness raising.Moreover, when control device 50 implements supplying hot water operating, it is hot in threeway heat exchanger 60
Medium and water phase flow over the ground, and thus heat exchanger effectiveness improves.Thereby, it is possible to realize the energy-saving of hot-water supply.
Further, since using a thermal medium circuit 4 and a pump 14, thermal medium can be in different loop direction stream
It is dynamic, so the running efficiency of hot-water supply can be improved, and it can realize the miniaturization of hot-water supply and cost effective.
In addition, cutting down the number of pump 14, the noise generated due to 14 action of pump, the reduction of vibration can be realized.
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 prevent from pressing
The resonance of vibration that the vibration that contracting machine 5 is acted and generated is acted with pump 14 and generated.Make lower noise as a result, and cut down every
The usage amount of sound material can realize the cost effective of hot-water supply.
Moreover, switching valve 15 is more cheap than pump 14, the control circuit also control than acting pump 14 for acting switching valve 15
Circuit is cheap.As a result, when comparing using two pumps 14 to make situation that thermal medium recycles and using pumping 14 and switching valve 15
During the situation for recycling thermal medium, and thermal medium cycle is made to be low cost with pump 14 and switching valve 15.
Then, illustrate supplying hot water auxiliary rotating, the supplying hot water auxiliary rotating is as described below：Make heat pump assembly 30 action come into
The heating of row thermal medium and thermal medium is recycled, hot water thus is supplied to supplying hot water terminal 17.
When carrying out supplying hot water operating in a state that the thermal medium in the high-temperature region inside tank 11 is few, even with supplying
The heat exchange of thermal medium and water that hot water heat exchanger 13 carries out, cannot abundant quilt there is also flowing water in heat supply water loop 16
The situation of heating.
Detected value of the control device 50 based on thermistor 22a~22c mounted on tank 11 is able to detect that inside tank 11
High-temperature region thermal medium it is fewer than specified value.In such a state, it is sometimes desirable to hot water is supplied to supplying hot water terminal 17,
Control device implement parallel carry out using heat pump assembly 30 realize thermal medium heating and using thermal medium realize water plus
The supplying hot water auxiliary rotating of heat.Moreover, specified value in this case can be raised according to the thermal capacity that can be stored in tank 11, pump 14
The design value of the hot-water supplies such as journey and set.
Moreover, supplying hot water auxiliary rotating can also be indicated to implement by user from remote controler.
In supplying hot water auxiliary rotating, control device 50 includes heat pump assembly 30, pump 14 and switching valve 15.It is auxiliary in supplying hot water
It helps in operating, refrigerant recycles in the direction of the inside of refrigerant circuit 3 solid arrow shown in Fig. 9.Thermal medium is situated between in heat
The direction cycle of the inside in matter circuit 4 dotted arrow shown in Fig. 9.That is, thermal medium flows successively through the top of tank 11, threeway heat
Exchanger 60, switching valve 15, pump 14, switching valve 15, tank 11 lower part.
In supplying hot water auxiliary rotating and supplying hot water operating, the loop direction of thermal medium is identical.Confession is flowed into from running water pipe
The water of hot-water return 16 is in threeway heat exchanger 60 with thermal medium and refrigerant progress heat exchange and as the heat of set point of temperature
Water, and flowed to supplying hot water terminal 17.
In such manner, it is possible to the thermal medium for being flowed into threeway heat exchanger 60 is heated, and can carry out water with refrigerant
Heating.Even if as a result, in the case where the thermal medium in high-temperature region is few, the heat of threeway heat exchanger 60 can be also flowed into
The temperature rise of medium.Water is heated in threeway heat exchanger 60 as a result, hot water can be generated, can realize usability height
Hot-water supply.
Moreover, from supplying hot water terminal 17 flow out hot water amount it is big when, sometimes in heat pump assembly 30 thermal medium absorb
Heat compare, in heat supply water heat exchanger 13 thermal medium release heat it is more.Implementing supplying hot water auxiliary rotating as a result,
In the case of, compared with no situation for carrying out supplying hot water auxiliary rotating, the heating efficiency that preferably makes heat pump assembly 30 it is big (such as
20kW)。
Moreover, detect the thermal medium in the high-temperature region inside tank 11 state fewer than specified value in control device 50
Under, in the case where implementing supplying hot water auxiliary rotating, preferably control device 50 is controlled such that the heating of heat pump assembly 30
Ability is maximum.
Moreover, supplying hot water auxiliary rotating, since the flow direction of refrigerant flowed in refrigerant flow path 60a in heat with being situated between
The flow direction of the thermal medium of mass flow road 60b flowings is identical direction, so the running efficiency of heat pump assembly 30 reduces.By
This, remote controler preferably has the selecting unit for choosing whether to implement supplying hot water auxiliary rotating automatically.That is, it is preferred that with heat supply is forbidden
Water installations automatically carry out the unit of supplying hot water auxiliary rotating.User is able to select whether to implement to operate with supplying hot water as a result,
The supplying hot water auxiliary rotating low compared to 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 for including more hardness components.Illustrate its reason below
By.
The Japan that landform is dangerously steep under normal circumstances, rivers and creeks length is short, the hardness dissolved in rivers and creeks flowing water into
The amount divided is few, and the water supplied from running water pipe is that the situation of soft water is more.Moreover, according to region difference, there is also hard in water
Spend the place more than ingredient.Additionally, there are the situations that underground water includes more hardness components.
On the other hand, it is molten in rivers and creeks circulating water in gentle, rivers and creeks the length length of landform, such as Europe or China
The amount of the hardness components of solution is more, more for the situation of hard water from the water that running water pipe supplies compared with Japan.
The hardness components such as dissolved with more calcium carbonate in the hard water.The hardness components have the temperature with dampening
It increases and solubility reduction and the property being precipitated as incrustation scale.As a result, in the high-temperature portion of hot-water supply, incrustation scale is precipitated and attached
It on flow path, flow path is blocked sometimes.In addition, even if flow path does not block, the pressure loss when flow path makes attachment incrustation scale
Increase, and the running efficiency of hot-water supply deteriorates.
For example, calcium carbonate (the CaCO as one of hardness components3) solubility, as shown in Fig. 2, with when the temperature of water
The tendency reduced during rising.That is, water more becomes high temperature, easier be precipitated as incrustation scale of the hardness components in water and be attached to flow path
On.
In addition, under the situation of water of the sustainable supply comprising more hardness components, precipitation and the incrustation scale of incrustation scale are continuously generated
Attachment, so incrustation scale easily deposits.The precipitation of incrustation scale is easily in the flowing of the refrigerant of the high temperature of hot-water supply as a result,
Thermal medium flow path 60b near refrigerant flow path 60a is generated.Further, since the water more than hardness components is continuously fed into thermal medium
Flow path 60b, so easily generating the deposition of incrustation scale.
In contrast, the hot-water supply of present embodiment makes thermal medium circuit 4 be loop circuit.Therefore, thermal medium circuit 4
Interior pressure rises, and in the case of a small amount of thermal medium is discharged from piping 21, supplements thermal medium circuit 4 new water.
The thermal medium recycled as a result, in thermal medium circuit 4, can use, not supply new hardness with being changed without for a long time
Ingredient, so the precipitation in the incrustation scale of thermal medium flow path 60b and deposition can be inhibited.
Moreover, the supplying hot water flow path 60c to threeway heat exchanger 60 is always supplied with fresh water.Herein, to tap, bath
The maximum temperature for the hot water that the supplying hot waters such as cylinder, shower head terminal 17 supplies is 50 degree or so.As a result, with thermal medium flow path 60b
In the low heat supply water heat exchanger of comparison temperature, it is difficult to generate the precipitation of incrustation scale.
In addition, oral siphon 18 is from 16 branch of heat supply water loop than threeway heat exchanger 60 on the upstream side, and with tank 11
Lower part connects, and is configured with pressure reducing valve 19 in oral siphon 18.When by the way that hot-water supply operating is made to be expanded and thermal medium, heat is situated between
When pressure inside matter circuit 4 rises, a part for the thermal medium expanded is released from the piping 21 with relief valve 20.Work as heat
The amount of thermal medium inside medium loop 4 is reduced, and when more than the pressure reduction to certain value inside thermal medium circuit 4, water is from confession
Hot-water return 16 is flowed into oral siphon 18, and water (thermal medium) is supplemented to thermal medium circuit 4.Pressure inside thermal medium circuit 4 as a result,
Power automatically adjusts.Therefore, user does not need to supplement thermal medium.Moreover, in the case where replacing pressure reducing valve 19 using shut-off valve,
By opening shut-off valve, water (thermal medium) can be supplied to thermal medium circuit 4 more than pressure reduction to certain value.
Moreover, the heat pump unit 1 in present embodiment is configured with compressor 5, decompressor 6, evaporator 7, Air Blast fan
9.In addition, heat pump unit 1 and tank unit 2 are connected by the connecting pipings 23 that refrigerant flows.Heat pump unit 1 and air tune as a result,
The outdoor unit of section machine is identical structure.Thereby, it is possible to realize sharing for the outdoor unit of air conditioner and heat pump unit 1.Moreover,
When refrigerant is R410A refrigerants usually used in air-conditioning, the connection of the connecting pipings 23 during construction becomes easy.
Further, since the connecting pipings 23 that heat pump unit 1 and tank unit 2 are recycled by refrigerant connects, so connection
Refrigerant inside piping 23 will not freeze, in addition also without freeze prevention operating etc..
(embodiment 9)
Figure 10 is the schematic structural diagram of the threeway heat exchanger 60 of the hot-water supply of embodiments of the present invention 9.At this
Identical symbol is added in pair place identical with embodiment in embodiment, and the description thereof will be omitted.
As shown in Figure 10, the hot-water supply of present embodiment has threeway heat exchanger 60, including refrigerant flow path
60a, thermal medium flow path 60b, supplying hot water flow path 60c, each flow path contact with each other.As a result, in the system of refrigerant flow path 60a flowings
Cryogen can mutually carry out heat exchange in the thermal medium of thermal medium flow path 60b flowings, in supplying hot water flow path 60c flowing waters.
Then, illustrate the action of the hot-water supply of present embodiment.
In heating operates, refrigerant is flowed in refrigerant flow path 60a, and thermal medium is flowed in thermal medium flow path 60b.
Refrigerant and thermal medium mutually carry out heat exchange as a result,.At this point, refrigerant and thermal medium become opposite stream.
On the other hand, in supplying hot water operating, thermal medium is flowed in thermal medium flow path 60b, and water is in supplying hot water flow path
60c flows.Thermal medium and water phase mutually carry out heat exchange as a result,.At this point, thermal medium and water become opposite stream.
In addition, in supplying hot water auxiliary rotating, refrigerant is flowed in refrigerant flow path 60a, and thermal medium is in thermal medium flow path
60b flows, and water is flowed in supplying hot water flow path 60c.As a result, in supplying hot water flow path 60c flowing waters from refrigerant and thermal medium two
Person is absorbed heat.That is, water can be heated using the refrigerant of high temperature and pressure and both the thermal medium of high temperature.At this point, refrigerant
Become opposite stream in same direction flowing, refrigerant and thermal medium and in the water of supplying hot water flow path with thermal medium.As a result,
Hot water can be generated in the case of lacking due to the thermal medium even if inside tank 11, so the usability of hot-water supply carries
It is high.
Then, illustrate emergent supplying hot water operating.Emergent supplying hot water operating, in threeway heat exchanger 60, in refrigerant stream
The refrigerant and carry out heat exchange in supplying hot water flow path 60c flowing waters that road 60a flows, generate hot water.
When supplying hot water operating is carried out in the state of the thermal medium in the high-temperature region inside no tank 11, by being handed over by heat
The heat exchange of thermal medium and water that parallel operation 60 carries out, can not fully heat the flowing water in heat supply water loop 16.
Control device 50, produce to supplying hot water terminal 17 supply hot water needs in the case of, first, utilize installation
The temperature of thermal medium inside thermistor 22a~22c detection tanks 11 of tank 11, to the detected value and to supplying hot water terminal 17
The temperature of the hot water of supply is compared.Moreover, the temperature (set temperature) for being supplied to the hot water of supplying hot water terminal 17 can be by
User is set with remote controler (not shown), in addition it is also possible to preset.
Control device 50, when the temperature for the thermal medium being determined as inside tank 11 is than the temperature of the water supplied to supplying hot water terminal 17
When spending low, heat pump assembly 30 is acted, and the refrigerant of high temperature and pressure is made to be flowed into threeway heat exchanger 60.High temperature is high as a result,
The refrigerant of pressure is flowed in the refrigerant flow path 60a of threeway heat exchanger 60.As a result, in threeway heat exchanger 60, freezing
The refrigerant and carry out heat exchange in supplying hot water flow path 60c flowing waters that agent flow path 60a flows, generate hot water.At this point, such as Figure 10
Shown, refrigerant and water become opposite stream.
(embodiment 10)
Figure 11 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 10.In the present embodiment pair with it is real
It applies the identical place of mode and adds identical symbol, the description thereof will be omitted.
The hot-water supply of present embodiment includes heat pump assembly 30, thermal medium circuit 4, heat supply water loop 16, oral siphon
18th, it is configured with the integrated unit 25 of piping 21.As a result, due to there is no connecting pipings, so setting hot-water supply can be shortened
When construction time.Further, since without connecting pipings, so the heat dissipation from connecting pipings can be prevented.
The hot-water supply of present embodiment uses carbon dioxide.As the refrigerant recycled in refrigerant circuit 3, energy
Enough using the carbon dioxide that global warming potential (Global Warming Potential) is zero (0).With R410A or R32
Compare Deng the HFC refrigerant always used, the critical point temperature of carbon dioxide is low.Make as a result, using carbon dioxide as refrigerant
Used time forms the supercritical steam cycle of the on high-tension side pressure postcritical of refrigerant circuit 3.
Thermal medium can be heated to high temperature (such as 85 degree) compared with the HFC refrigerants such as R410A or R32 as a result,.This
Outside, due to can thermal medium be heated to high temperature, so can increase the heat being stored in tank 11, and tank can be realized
11 miniaturization.
On the other hand, using carbon dioxide as refrigerant in use, the on high-tension side pressure of refrigerant circuit 3 is with using
The situation of HFC refrigerant is compared and is increased (such as 8MPa).Thus, it is desirable to improve the resistance to pressure of refrigerant piping, particularly need
Improve the resistance to pressure of the connecting pipings needed for construction.On the other hand, the hot-water supply of present embodiment does not have connecting pipings.
As a result, without the concern for the resistance to pressure of connecting pipings.
Thereby, it is possible to make construction operation during setting hot-water supply easy.Further, since in the inside of integrated unit 25
Refrigerant circuit 3, thermal medium circuit 4, heat supply water loop 16 are accommodated with, so the piping for connecting each component parts can be shortened.
Moreover, by winding heat-barrier material in the piping of inside for being accommodated in integrated unit 25, radiation loss can be reduced, and carry
The running efficiency of high hot-water supply.
(embodiment 11)
Figure 12 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 11.In the present embodiment pair with it is real
It applies the identical place of mode and adds identical symbol, the description thereof will be omitted.
The hot-water supply of present embodiment has pump of the reversible pump 31 as force feed thermal medium.
Reversible pump 31 has the function of to make the loop direction reversion in the thermal medium of 4 internal flow of thermal medium circuit.It that is, can
Inverse pump 31 works as the switching device for inverting the loop direction of thermal medium.It can just be changed without using switching valve as a result,
The loop direction of thermal medium.
In heating operates, control device 50 controls reversible pump 31, so that thermal medium is in the solid arrow shown in Figure 12
Direction cycle.Thermal medium in thermal medium circuit 4 flows successively through the lower part of tank 11, reversible pump 31, threeway heat exchanger 60, tank
11 top.
At this point, control device 50 controls heat pump assembly 30 so that the refrigerant of high temperature and pressure is flowed into threeway heat exchanger
60.The refrigerant and thermal medium for being flowed into threeway heat exchanger 60 as a result, carry out heat exchange, generate the thermal medium of high temperature.Generation
Thermal medium flowed in thermal medium circuit 4, be flowed into tank 11 from the top of tank 11.As a result, in the internal storage high temperature of tank 11
Thermal medium.Moreover, control device 50 can also control reversible pump 31 and heat pump assembly 30, so that the inspection of thermistor 22e
Measured value becomes specified value.
In supplying hot water operating, control device 50 controls reversible pump 31, so that thermal medium is in the dotted line arrow shown in Figure 12
The direction cycle of head.Thermal medium in thermal medium circuit 4 flow successively through the top of tank 11, threeway heat exchanger 60, reversible pump 31,
The lower part of tank 11.
Thermal medium circuit 4 internal flow thermal medium in threeway heat exchanger 60 with being flowed in heat supply water loop 16
Water carry out heat exchange.Hot water is generated as a result,.
For example, in the case of the temperature of hot water flowed out in user using remote controler setting from supplying hot water terminal 17, control
Device 50 processed is flowed into the temperature of heat supply water heat exchanger 13 using thermistor 22e detections, and reversible pump is controlled based on detected value
31 rotating speed, so that becoming the temperature of setting by the temperature of the thermistor 22d hot water detected.Herein, by thermistor
22d detection temperature it is lower than the temperature of setting in the case of, control device 50 reduces the rotating speed of reversible pump 31.On the other hand,
By the temperature that thermistor 22d is detected it is higher than the temperature of setting in the case of, control device 50 increases the rotating speed of reversible pump 31
Greatly.
Moreover, in the case where supplying hot water terminal 17 can adjust temperature, control device 50 does not need to adjust to confession
Hot water terminal 17 supply hot water temperature and suitable control reversible pump 31 rotating speed, as long as by hot water more than set point of temperature to
Supplying hot water terminal 17 supplies.
In supplying hot water auxiliary rotating, control device 50 controls heat pump assembly 30, so that the refrigerant stream of high temperature and pressure
Enter to threeway heat exchanger 60.In addition, control device 50 controls reversible pump 31, so that thermal medium is in the dotted line arrow shown in Figure 12
The direction cycle of head.Thermal medium in thermal medium circuit 4 flow successively through the top of tank 11, threeway heat exchanger 60, reversible pump 31,
The lower part of tank 11.
In this way, switching the loop direction of thermal medium by using reversible pump 31, a thermal medium circuit 4 and one can be utilized
Heating operating, supplying hot water operates and supplying hot water auxiliary rotating to implement for a reversible pump 31.
(embodiment 12)
Figure 13 is the schematic structural diagram of the hot-water supply of embodiments of the present invention 12.In the present embodiment pair with it is real
It applies the identical place of mode and adds identical symbol, the description thereof will be omitted.
As shown in figure 13, the hot-water supply of present embodiment has supply pipe 27, is connected to the top of tank 11, has
The shut-off valve 26 that can flow path closed and be opened.
In addition, tank 11 has the liquid level sensor 28 that the amount of the thermal medium to being stored in tank 11 is detected.Control dress
The reduction of 50 amounts that thermal medium is detected using liquid level sensor 28 is put, and is shown on a remote control, and can notify user.
Moreover, thermal medium circuit 4 is tank 11, switching valve 15, pump 14, threeway heat exchanger 60 annularly connects and complete
Loop circuit.The water more than hardness components is not flowed into threeway heat exchanger 60 as a result,.Thereby, it is possible to inhibit the precipitation of incrustation scale and
Deposition.Moreover, the thermal medium circuit 4 between the top of radiator 8 and tank 11 adjusts thermal medium when being configured with thermal medium expansion
The expansion drum 29 of pressure inside circuit 4.
When the amount of thermal medium is reduced, open shut-off valve 26, inside supplemental heat from supply pipe 27 to tank 11 that can be from is situated between
Matter.
Anti-icing fluid is recycled as thermal medium in thermal medium circuit 4.As thermal medium, principal component can be water, this
Thermal medium outer or with the specific heat or pyroconductivity higher than water.For example, it can be total to used as gallium, indium, tin
The gallium-indium-tin alloy of peritectic alloy.Thereby, it is possible to prevent from freezing in the thermal medium that thermal medium circuit 4 is flowed.
Industrial availability
As described above, the hot-water supply of the present invention, since the water containing more hardness components can be used, and can
It realizes and minimizes, is cost effective, so the hot-water supply of home-use or business use etc. can be suitable for.
Reference sign
1 heat pump unit
2 tank units
3 refrigerant circuits
4 thermal medium circuits
5 compressors
6 decompressors
7 evaporators
8 radiators
8b thermal mediums flow path (heating part)
9 Air Blast fans
11 tanks
13 heat supply water heat exchangers
14 pumps
15 switching valves (switching device)
16 heat supply water loops
17 supplying hot water terminals
18 oral siphons
19 pressure reducing valves
20 relief valves
21 pipings
26 shut-off valves
27 supply pipes
28 liquid level sensors
30 heat pump assemblies (heating unit)
31 reversible pumps (switching device)
50 control devices
60 threeway heat exchangers
Claims (6)
1. a kind of hot-water supply, which is characterized in that including：
The thermal medium circuit that the lower part for the tank for storing thermal medium and top are annularly formed by connecting with thermal medium piping, the heat
Medium recycles in the thermal medium circuit；
The heating unit of heater with the thermal medium circuit is set to for being heated to the thermal medium；
It is configured at the pump for making the thermal medium cycle in the thermal medium circuit；
The water supplied from running water pipe flow to the heat supply water loop of supplying hot water terminal；With
Control device,
The hot-water supply is provided in the thermal medium flowed in the thermal medium circuit and the heat supply water loop
The heat supply water heat exchanger of heat exchange is carried out between the water of flowing,
The thermal medium circuit connects the lower part of the tank with the thermal medium piping successively, the heat supply water heat exchanger, dissipates
The top of hot device, the tank,
The thermal medium circuit setting pump and switching institute between the lower part of the tank and the heat supply water heat exchanger
The switching device of the loop direction of thermal medium is stated,
The control device,
In the heating operating heated to the thermal medium being stored in the tank, in the state for making the heating unit work
Under, make to be stored in the thermal medium of the low temperature of the lower part of the tank to flow successively through the heat supply water heat exchanger, described dissipate
Hot device is simultaneously flowed into the mode on top of the tank and is flowed in the thermal medium circuit,
In the supplying hot water operating to supplying hot water terminal supply hot water, in the case where making the idle state of the heating unit,
Make to be stored in the thermal medium of the high temperature on the top of the tank to flow successively through the radiator, the heat supply water heat exchanger
And the mode for being flowed into the lower part of the tank flows in the thermal medium circuit,
In the supplying hot water auxiliary rotating to supplying hot water terminal supply hot water, in the state for making the heating unit work
Under, make to be stored in the thermal medium of the high temperature on the top of the tank to flow successively through the radiator, heat supply hydro-thermal friendship
Parallel operation is simultaneously flowed into the mode of lower part of the tank and is flowed in the thermal medium circuit.
2. hot-water supply as described in claim 1, it is characterised in that：
The heating unit is the heat pump assembly for having refrigerant circuit, and the refrigerant circuit is by compressor, radiator, decompression
Device, evaporator are annularly formed by connecting, and refrigerant is recycled in the inside of the refrigerant circuit,
The refrigerant that the radiator flows in the refrigerant circuit and the heat flowed in the heating part are situated between
Heat exchange is carried out between matter.
3. hot-water supply as described in claim 1, it is characterised in that：
In the heating operating, refrigerant and the thermal medium relative flow in the radiator, in the supplying hot water operating,
The thermal medium described in the heat supply water heat exchanger and the water relative flow.
4. hot-water supply as described in claim 1, it is characterised in that：
The pump is the reversible pump functioned as the switching device for inverting the loop direction of the thermal medium.
5. hot-water supply as described in claim 1, it is characterised in that：
With supply pipe, which has the shut-off valve for ending flow path, and is connect with the top of the tank.
6. hot-water supply as described in claim 1, it is characterised in that：
With oral siphon, which has pressure reducing valve or the shut-off valve for ending flow path, from than the heat supply hydrothermal exchange
The device supplying hot water branch of a circuit on the upstream side is simultaneously connect with the lower part of the tank.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-065855 | 2013-03-27 | ||
| JP2013065856 | 2013-03-27 | ||
| JP2013065855 | 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 CN105102902A (en) | 2015-11-25 |
| CN105102902B true 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) |
Families Citing this family (7)
| 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 |
| JP7215956B2 (en) * | 2019-04-23 | 2023-01-31 | リンナイ株式会社 | Hybrid hot water system |
| DE102019119243A1 (en) * | 2019-07-16 | 2021-01-21 | Vaillant Gmbh | Safety drain of an external heat pump unit |
| DE102019119229A1 (en) * | 2019-07-16 | 2021-01-21 | Vaillant Gmbh | Safety drain of an external heat pump unit |
| JP7283029B2 (en) * | 2019-10-25 | 2023-05-30 | 株式会社ノーリツ | Heating 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 |
| CN115224303B (en) * | 2022-07-01 | 2023-06-13 | 上海卓微氢科技有限公司 | Fuel cell circulation cooling device and temperature balance control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102809185A (en) * | 2011-05-31 | 2012-12-05 | 松下电器产业株式会社 | Heat pump hydronic heater |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04126924A (en) * | 1990-09-19 | 1992-04-27 | Takenaka Komuten Co Ltd | Hot water supply system |
| JP3414825B2 (en) * | 1994-03-30 | 2003-06-09 | 東芝キヤリア株式会社 | Air conditioner |
| JP3856024B2 (en) * | 2004-09-24 | 2006-12-13 | 松下電器産業株式会社 | Heat pump bath water supply system |
| JP2008008563A (en) * | 2006-06-30 | 2008-01-17 | Hanshin Electric Co Ltd | Storage type hot-water supply method and storage type hot-water supply device |
| JP2009174753A (en) * | 2008-01-23 | 2009-08-06 | Mitsubishi Electric Corp | Heat exchanger and heat pump water heater |
| JP5310431B2 (en) * | 2009-09-17 | 2013-10-09 | パナソニック株式会社 | Heat pump type hot water heater |
| JP5404541B2 (en) * | 2010-07-07 | 2014-02-05 | 三菱電機株式会社 | Heat exchanger and hot water supply apparatus provided with the same |
-
2014
- 2014-03-07 EP EP14776050.8A patent/EP2980504B1/en active Active
- 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 JP JP2015508010A patent/JPWO2014155993A1/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102809185A (en) * | 2011-05-31 | 2012-12-05 | 松下电器产业株式会社 | Heat pump hydronic heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105102902A (en) | 2015-11-25 |
| JPWO2014155993A1 (en) | 2017-02-16 |
| EP2980504A4 (en) | 2016-07-13 |
| WO2014155993A1 (en) | 2014-10-02 |
| EP2980504B1 (en) | 2019-05-08 |
| EP2980504A1 (en) | 2016-02-03 |
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