CN102918332B - Heat pump hot-water supply device - Google Patents
Heat pump hot-water supply device Download PDFInfo
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- CN102918332B CN102918332B CN201080067195.1A CN201080067195A CN102918332B CN 102918332 B CN102918332 B CN 102918332B CN 201080067195 A CN201080067195 A CN 201080067195A CN 102918332 B CN102918332 B CN 102918332B
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- temperature
- hot water
- heat
- water supply
- heat exchanger
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 522
- 239000003507 refrigerant Substances 0.000 claims abstract description 140
- 239000007788 liquid Substances 0.000 claims abstract description 111
- 238000010438 heat treatment Methods 0.000 claims abstract description 76
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 230000009183 running Effects 0.000 claims description 122
- 238000012546 transfer Methods 0.000 claims description 60
- 238000001556 precipitation Methods 0.000 claims description 55
- 238000009835 boiling Methods 0.000 claims description 53
- 238000001514 detection method Methods 0.000 claims description 17
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000003860 storage Methods 0.000 description 52
- 238000012423 maintenance Methods 0.000 description 10
- 239000000470 constituent Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000035622 drinking Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 208000027534 Emotional disease Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
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- 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
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-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
- F24D19/00—Details
- F24D19/0092—Devices for preventing or removing corrosion, slime or scale
-
- 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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1054—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump
-
- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
-
- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/288—Accumulation of deposits, e.g. lime or scale
-
- 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
-
- 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
- F24H15/395—Information to users, e.g. alarms
-
- 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
-
- 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
-
- 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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/123—Compression type 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/08—Storage tanks
-
- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/215—Temperature of the water before heating
-
- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/227—Temperature of the refrigerant in heat pump cycles
-
- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
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- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/258—Outdoor temperature
-
- 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
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/281—Input from user
-
- 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
-
- 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
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible
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
Provided is a heat pump hot-water supply device capable of determining whether scale is deposited. Specifically disclosed is a heat pump hot-water supply device provided with a heat pump refrigerant circuit which is configured by connecting at least a compressor (1), a refrigerant-side heat transmission tube (2a) of a liquid refrigerant heat exchanger (2), a pressure reduction unit (4), and an air heat exchanger (5) by refrigerant piping, a liquid-to-be-heated circuit which is configured by connecting at least a pump (15) and a liquid-side heat transmission tube (2b) of the liquid refrigerant heat exchanger (2) by liquid piping, a first temperature sensor (20) which detects the temperature of a liquid to be heated on the outlet side of the liquid refrigerant heat exchanger (2), and an operation control means (52); which controls the heat pump refrigerant circuit and/or the liquid-to-be-heated circuit to perform a liquid heating operation, said heat pump hot-water supply device being provided with a second temperature sensor (24) which detects the temperature of the liquid to be heated on the upstream side from the liquid to be heated the temperature of which is detected by the first temperature sensor (20).
Description
Technical field
The present invention relates to heat-pump hot water supply apparatus, particularly relate to the detection of scale attachment and prevent.
Background technology
Heat-pump hot water supply apparatus is generally following this storage hot-water type heat-pump hot water supply machine, utilize discounting electricity charge running heat pump and the pump at night, normal-temperature water (by heating liquid) added thermosetting high-temperature water (high temperature by heating liquid) and be stored in receiver, use when to fetch boiling water tap during hot water by day, make the high-temperature water in receiver and normal-temperature water be mixed and made into thermophilic water and supplying hot water.
In addition, the boiling temperature of the water of the heat pump running of heat-pump hot water supply apparatus is about 65 DEG C ((company) Japanese refrigerating and air conditioning commercial size (JRA4050:2007R) standard boiling temperatures: 65 DEG C) usually under common storage hot water running (heating liquid running), is the high temperature (high-boiling) of about 85 DEG C ~ 90 DEG C under storage hot water running (heating liquid running) when teletostage low temperature.In addition, when direct heating water transport turns, be generally about 42 DEG C that can be described as preference temperature when washing one's face or have a bath.
Running water for heat-pump hot water supply apparatus contains the hardness components such as calcium or magnesium, therefore, the hardness components such as the calcium of separating out from running water after long-term use or magnesium are separated out as scale at the internal face of water pipe arrangement, hinder water circulation, the heating properties of heat-pump hot water supply apparatus may be made to reduce.
With regard to the solubility of hardness components, water temperature is more high lower, more easily separates out scale.Therefore, attachment scale near the high-temperature portion (going out hot water portion) of the water refrigerant heat exchanger particularly due to high-boiling runnings such as high temperature storage hot water runnings during teletostage low temperature at heat-pump hot water supply apparatus.
When the core of water pipe inner face attachment hardness components, scale is grown up and is piled up, and the heating efficiency of heat-pump hot water supply apparatus reduces.In addition, when growth, the accumulation development of scale, water pipe arrangement is inaccessible, can not carry out the running of heat-pump hot water supply apparatus.
As the solution that the scale of the water loop for water refrigerant heat exchanger is separated out, in JP 2009-30959 publication (patent document 1), disclose the method using water quality survey unit to remove the hardness components comprised in running water in advance.In addition, disclose in patent document 1 and measure water quality and judge the pliability that scale is separated out, control the running of heat-pump hot water supply apparatus.
In addition, as the detection method that scale is separated out, following method is disclosed in JP 2009-250461 publication (patent document 2), namely the detection part of the injection detecting water-circulating pump is possessed, increase by detecting the pressure loss of water pipe arrangement because scale is separated out, be judged to be that scale is separated out, control the running of heat-pump hot water supply apparatus.
In addition, disclose following content in JP 2009-250575 publication (patent document 3), namely judge to arrange area, when carrying out the arrangement of heat-pump hot water supply apparatus in the area being judged as high rigidity area, likely there is scale to separate out, change the running of heat-pump hot water supply apparatus.
Prior art document
Patent document
Patent document 1: JP 2009-30959 publication
Patent document 2: JP 2009-250461 publication
Patent document 3: JP 2009-250575 publication
Summary of the invention
The problem that invention will solve
Heat-pump hot water supply apparatus carries out storage hot water running (heating liquid running), at receiver as hot water (high temperature by heating liquid) storage, in the characteristic of the equipment towards the supplying hot water in family, particularly in the teletostage etc. that supplying hot water heat demand is many, much carry out high-boiling running to prevent disconnected hot water.
The water quality of running water is different in each department, in addition, also has variation in each season, therefore, when carrying out high-boiling running area/season that hardness components is high, producing the precipitation of scale, the running that heating efficiency reduces, water pipe arrangement obturation is brought may be produced and stop.
In addition, when scale is separated out, for needing the cleaning implementing to use large-scale equipment except disincrustant.In addition, when separate out carry out and stream obturation, become and have to change the situation of heat pump unit.
In prior art disclosed in patent document 1, possesses the water quality survey unit for removing the hardness components contained in running water, the hot hardness of water of adjustment boiling.As scale separate out to prevent be effective, but due to built-in water quality survey unit, so heat-pump hot water supply apparatus is complicated, at high price, also need the maintenance carrying out water quality survey unit in addition.In addition, as the detection technique that the scale recorded in patent document 1 is separated out, measure the composition of running water by the components of assays such as conductance, optical detecting, heat-pump hot water supply apparatus becomes complicated, at high price.
In prior art disclosed in patent document 2, when the injection and such as comparing of relatively water-circulating pump increased the day before yesterday export, be judged to be that the pressure loss that scale separates out the water pipe arrangement caused increases, change boiling and operate, realize heat-pump hot water supply apparatus extension.But the change of the output of the circulating pump that the pressure loss causes is minimum, for detecting this change, need the detector that precision is high.
In prior art described in patent document 3, the area according to arranging judges hardness of water from the beginning, carries out the running suppressing scale to be separated out in high rigidity area.But there is various change, so be difficult to abundant reply according to area or season in hardness of water.
But, in order to carry out the running of the heat-pump hot water supply apparatus of the precipitation suppressing scale, first cheapness is needed and reliably for detecting the checkout equipment of the precipitation of scale, and require a kind of heat-pump hot water supply apparatus, its running carrying out the precipitation suppressing scale based on its testing result controls, and sends information by maintenance call etc. to user.
Therefore, problem of the present invention is, provides a kind of heat-pump hot water supply apparatus carrying out the judgement of scale precipitation.
The technological means of dealing with problems
For solving such problem, first aspect present invention provides a kind of heat-pump hot water supply apparatus, it possesses: to major general's compressor, the refrigerant side heat transfer pipe of liquid refrigerant heat exchanger, decompressor, and the heat pump refrigerant loop that air heat exchanger is connected by refrigerant piping and forms, hydraulic fluid side heat-transfer pipe to major general's pump and described liquid refrigerant heat exchanger connected by liquid pipe arrangement and form by heating liquid loop, detect the outlet side of described liquid refrigerant heat exchanger by the first temperature sensor of the temperature of heating liquid, control described heat pump refrigerant loop and/or describedly carried out the operation control section part of heating liquid running by heating liquid loop, it is characterized in that, possess detect than by described first temperature sensor detected temperatures by heating liquid more upstream side by the second temperature sensor of the temperature of heating liquid.
In addition, the feature of the heat-pump hot water supply apparatus of second aspect is, the described hydraulic fluid side heat-transfer pipe of described liquid refrigerant heat exchanger is located at by described second temperature sensor.
In addition, the feature of the heat-pump hot water supply apparatus of the third aspect is, described liquid refrigerant heat exchanger has high temperature side liquid refrigerant heat exchanger and low temperature side liquid refrigerant heat exchanger, and the liquid pipe arrangement be connected with the hydraulic fluid side heat-transfer pipe of described low temperature side liquid refrigerant heat exchanger by the hydraulic fluid side heat-transfer pipe of described high temperature side liquid refrigerant heat exchanger is located at by described second temperature sensor.
In addition, the feature of the heat-pump hot water supply apparatus of fourth aspect is, described second temperature sensor is fixed on the surface of pipe, is by the temperature sensor of the temperature of heating liquid according to the temperature detection of described pipe.
In addition, the feature of the heat-pump hot water supply apparatus of the 5th aspect is, described second temperature sensor be by set temperature test section in the stream of the pipe of heating liquid and direct-detection by the temperature sensor of the temperature of heating liquid.
In addition, the feature of the heat-pump hot water supply apparatus of the 6th aspect is, the difference of the temperature that described operation control section part detects according to the temperature of described first temperature sensor detection and described second temperature sensor judges the precipitation of scale.
In addition, the feature of the heat-pump hot water supply apparatus of the 7th aspect is, also possess the entrance side detecting described liquid refrigerant heat exchanger by the three-temperature sensor of the temperature of heating liquid,
The difference of the temperature that the thermometer that described operation control section part detects according to the temperature of described first temperature sensor detection and described three-temperature sensor calculates and the temperature that described second temperature sensor detects judges the precipitation of scale.
In addition, the feature of the heat-pump hot water supply apparatus of eighth aspect is, described operation control section part, when being judged to be that scale is separated out, changes described heat pump refrigerant loop and/or described by the running in heating liquid loop.
In addition, the feature of the heat-pump hot water supply apparatus of the 9th aspect is, the change of described running change to the outlet side making described liquid refrigerant heat exchanger by the running of the setting low temperature of the temperature of heating liquid.
In addition, the feature of the heat-pump hot water supply apparatus of the tenth aspect is, the change of described running possesses threshold value corresponding to multiple and described temperature difference, make according to this threshold value the outlet side of described liquid refrigerant heat exchanger by the setting low temperature of the temperature of heating liquid.
The feature of the heat-pump hot water supply apparatus of other 11 aspect is, possess storage by described liquid refrigerant heat exchanger heats by the receiver of heating liquid, described operation control section part, heating liquid running is carried out at evening hours, at described receiver storage high temperature by heating liquid, simultaneously, when change to make by the outlet side of described liquid refrigerant heat exchanger by the running of the setting low temperature of the temperature of heating liquid, force change to perform daylight hours boiling running running.
In addition, the feature of the heat-pump hot water supply apparatus of the 12 aspect is, possess the notifying parts of the operating condition notifying described heat-pump hot water supply apparatus to user, described operation control section part, when being judged to be that scale is separated out, notifies the precipitation of scale by described notifying parts.
In addition, the feature of the heat-pump hot water supply apparatus of the 13 aspect is, possesses the notifying parts of operational situation user being notified to described heat-pump hot water supply apparatus, described operation control section part, possess multiple threshold value corresponding with being judged to be described temperature difference that scale is separated out, according to this threshold value by the outlet side of described liquid refrigerant heat exchanger by the setting low temperature of the temperature of heating liquid, when the precipitation of scale is carried out, pass through notify until notify the precipitation of scale.
In addition, the feature of the heat-pump hot water supply apparatus of fourteenth aspect is, described cold-producing medium is carbon dioxide.
Invention effect
According to the present invention, the heat-pump hot water supply apparatus that can carry out the judgement of scale precipitation can be provided.
Accompanying drawing explanation
Fig. 1 is the structural representation of the heat-pump hot water supply apparatus of the first embodiment.
Fig. 2 is the flow chart of the motion of the heat-pump hot water supply apparatus of the first embodiment.
Fig. 3 is the water of water refrigerant heat exchanger of the heat-pump hot water supply apparatus representing the first embodiment and the chart of the variations in temperature of cold-producing medium.
The water of water refrigerant heat exchanger when Fig. 4 is the scale precipitation of the heat-pump hot water supply apparatus representing the first embodiment and the chart of the variations in temperature of cold-producing medium.
Fig. 5 is the chart of the temperature that detects of temperature sensor that the water side heat-transfer pipe of the heat-pump hot water supply apparatus representing the first embodiment is arranged and the relation that goes out hot water temperature.
Fig. 6 is that the scale of the heat-pump hot water supply apparatus that the first embodiment is described separates out the chart judged.
Fig. 7 is that the scale of the heat-pump hot water supply apparatus that the first embodiment is described separates out the flow chart judging and operate the change controlled.
Fig. 8 is the structural representation of the heat-pump hot water supply apparatus of the second embodiment.
Fig. 9 is the water of water refrigerant heat exchanger of the heat-pump hot water supply apparatus representing the second embodiment and the chart of the variations in temperature of cold-producing medium.
Figure 10 is that the scale of the heat-pump hot water supply apparatus that the 3rd embodiment is described separates out the chart judged.
Figure 11 is that the scale of the heat-pump hot water supply apparatus that the 3rd embodiment is described separates out the flow chart judging and operate the change controlled.
Detailed description of the invention
Below, suitably describe in detail for implementing mode of the present invention (hereinafter referred to as " embodiment ") with reference to accompanying drawing.In addition, in each figure, for common part mark same symbol, the repetitive description thereof will be omitted.
" the first embodiment "
Fig. 1 is the structural representation of the heat-pump hot water supply apparatus of the first embodiment.
Heat-pump hot water supply apparatus possess storage heat pump refrigerant loop constituent part and by the heat pump unit 30 of a constituent part in heating liquid loop, receive by the storage liquid unit 40 of the constituent part in another constituent part in heating liquid loop and feeding loop, control storage liquid unit 40 operation control section part 51, control heat pump unit 30 operation control section part 52, as the interface to user remote control 50 and form.In addition, remote control 50, operation control section part 51 can be connected communicatedly with operation control section part 52.
Below, heat pump refrigerant loop is described, by the structure in heating liquid loop and feeding loop.
< heat pump refrigerant loop >
Heat pump refrigerant loop possesses compressor 1, the refrigerant side heat transfer pipe 2a of water refrigerant heat exchanger 2, decompressor 4, air heat exchanger 5 and forming, and connects annularly successively respectively in the mode that cold-producing medium carries out circulating via refrigerant piping.In addition, as the cold-producing medium of present embodiment, be sealed with carbonic acid gas (CO2) cold-producing medium, in addition, as present embodiment by heating liquid (liquid), use water (drinking public water supply) be described as follows.
Cold-producing medium from air heat exchanger 5 compresses by compressor 1, is sent by the refrigerant side heat transfer pipe 2a of the gas refrigerant (high temperature refrigerant) of the high temperature of compression to water refrigerant heat exchanger 2 simultaneously.
Compressor 1 is by PWM(Pulse Width Modulation) control, Control of Voltage (such as PAM(Pulse Amplitude Modulation) controls) and by the control of above-mentioned control combination, rotating speed control can be carried out at low speed (such as 700 revs/min) ~ at a high speed (such as 6000 revs/min).
In addition, operation control section part 52 controls to make the heating efficiency of heat pump unit 30 be certain owing to carrying out running, so the summer that temperature degree is high outside makes the rotating speed of compressor 1 at low speed, the winter that temperature degree is low outside makes the rotating speed of compressor 1 to run up, and according to the situation of outer temperature degree, enters coolant-temperature gage, goes out the rotating speed that hot water temperature controls compressor 1.
Water refrigerant heat exchanger 2 is configured to possess the refrigerant side heat transfer pipe 2a of the high temperature refrigerant circulation making to spray from compressor 1 and makes the water side heat-transfer pipe 2b that current described later are logical, touches setting in the mode of carrying out heat exchange between refrigerant side heat transfer pipe 2a and water side heat-transfer pipe 2b.
Decompressor 4 is arranged at the midway of the refrigerant piping of configuration between the refrigerant side heat transfer pipe 2a and air heat exchanger 5 of water refrigerant heat exchanger 2, usually uses electric expansion valve.
Decompressor 4, by high-pressure refrigerant decompression warm in sending here via water refrigerant heat exchanger 2, is sent to air heat exchanger 5 as the evaporable low pressure refrigerant of appearance.
In addition, the adjustable throttle opening of decompressor 4, also play the effect that changes this throttle opening and circulating mass of refrigerant in adjusting heat pump refrigerant loop and carry out heat pump running when teletostage low temperature and on air heat exchanger 5 number frost throttle opening is set to standard-sized sheet and middle temperature cold-producing medium is sent in a large number the effect of the defroster that air heat exchanger 5 makes frost melt.
Air heat exchanger 5 carries out being taken into by the rotation of Air Blast fan 6 air and the heat exchange of the cold-producing medium of circulation in air heat exchanger 5 of outer gas, draws heat from outer gas.And cold-producing medium is sent to compressor 1 from air heat exchanger 5.
< is by heating liquid loop >
It is the liquid loop of storing high-temperature water for " storage hot water running (heating liquid running) " by utilizing the discounting electricity charge at night regularly hot water (high-temperature water) to be stored to receiver 10 and " tank boiling operates (heating liquid running) " that only operate when the delayed heat water yield is below setting to receiver 10 by heating liquid loop.
The water side heat-transfer pipe 2b possessing receiver 10, pump 15, water refrigerant heat exchanger 2 is configured to, respectively via water pipe arrangement successively loop connecting by heating liquid loop.
Pump 15 be conveying by the pump of the water in heating liquid loop, specifically, the water in receiver 10 is entered water to the water side heat-transfer pipe 2b of water refrigerant heat exchanger 2 by the water pipe arrangement via the bottom being connected to receiver 10.
Water refrigerant heat exchanger 2 is configured to the water side heat-transfer pipe 2b possessing above-mentioned refrigerant side heat transfer pipe 2a and make the water at low temperature circulation sprayed from pump 15, and contiguity is arranged to carry out heat exchange between refrigerant side heat transfer pipe 2a and water side heat-transfer pipe 2b.
That is, the water at low temperature sprayed from pump 15 flows into the water side heat-transfer pipe 2b of water refrigerant heat exchanger 2, is heated to the top storage hot water of set point of temperature from receiver 10.
In addition, when being set point of temperature 90 DEG C in the high temperature storage hot water running when teletostage low temperature, the water at low temperature water refrigerant heat exchanger 2 of spray from pump 15 about 10 DEG C being heated to about 90 DEG C and going out hot water.Therefore, the temperature of cold-producing medium sprayed from the compressor 1 becoming heating source is also more than 100 DEG C sometimes.
< feeding loop >
Feeding loop is by carrying out " supplying hot water running " and for the liquid loop from supplying hot water such as tap 14 grade when using hot water.
Water supply metalwork 7, pressure-reducing valve 8, flow sensor 9, receiver 10, hot water mixing valve 12, supplying hot water metalwork 13 are sequentially connected in series via water pipe arrangement and form by feeding loop.
In addition, be configured at water pipe arrangement between flow sensor 9 and receiver 10 at branched halfway, be connected with hot water mixing valve 12.
Water supply metalwork 7 is connected with waterings such as running water pipes, and supplying hot water metalwork 13 is connected with tap 14.In addition, in Fig. 1, supplying hot water metalwork 13 is only connected with tap 14, but also can connect and lay loop (not shown) etc. in face washing water tap (not shown) or bathing water and use terminal.
< operation control section part >
Then, the operation control section part 51,52 of heat-pump hot water supply apparatus is described.
The operation control section part 51 controlling storage liquid unit 40 controls hot water mixing valve 12, regulates the supplying hot water temperature of the hot water sprayed from tap 14, controls supplying hot water running.
In addition, operation control section part 51 detects the storage hot water amount of receiver 10 according to the flow sensor 9 for detecting supplying hot water use amount and/or multiple tank temperature sensor 10a, 10b, 10c, 10d for detecting storage hot water temperature and storage hot water amount, controls boiling timing and the boiling temperature of receiver 10.
In addition, operation control section part 51 also can possess following learning control function, namely judges the supplying hot water load of a day from the flow sensor 9 detecting supplying hot water use amount, controls boiling temperature and boiling amount, boiling time in the mode becoming energy-conservation optimum operation.
The operation control section part 52 controlling heat pump unit 30 carries out the rotating speed control of compressor 1 and Air Blast fan 6, and is controlled the running in heat pump refrigerant loop by the throttle opening controlling decompressor 4.In addition, the running that operation control section part 52 carries out heat pump refrigerant loop controls, and based on heat pump unit 30 heating efficiency, enter coolant-temperature gage (temperature of water at low temperature to heat pump unit 30 supplies) and control to become the set rotating speed going out the mode control pump 15 of hot water temperature's (temperature of the high-temperature water heated by heat pump unit 30), and control storage hot water running (heating liquid running).
In addition, operation control section part 52 has optimum operation control assembly (not shown), it stores hot water when teletostage low temperature with the set point of temperature (flowing into 90 DEG C) of high temperature storage hot water, and, due to environment temperature and supply water temperature is low and heating load is large, so compressor 1 to be set to high rotating speed (flowing into 3000 ~ 4000 revs/min), and due to summer or intergrade heating load little, so be set to the lower slow-speed of revolution (flowing into 1000 ~ 2000 revs/min) etc. according to the set point of temperature (about 65 DEG C) of usual storage hot water.
Heat pump unit 30 is configured to the ejection pressure sensor (not shown) possessing the pressure detecting the cold-producing medium sprayed from compressor 1, detect the ejection temperature sensor 22 of the temperature of the cold-producing medium sprayed from compressor 1, detect the outer gas temperature sensor 23 of outer temperature degree, detect that hot water temperature's goes out hot water temperature sensor 20, detect and enter water temperature sensor 21 into coolant-temperature gage, detect the sensor such as water pipe temperature sensor 24 grade of the temperature of the water (by heating liquid) in the water side heat-transfer pipe 2b of water refrigerant heat exchanger 2, by each detection signal input operation control section part 52.
Remote controller 50 as the interface to user can carry out the setting of supplying hot water temperature, the display of mistake, the change etc. of operation mode.
The motion > of < heat-pump hot water supply apparatus
Next, reference Fig. 1 also uses Fig. 2 that the motion of the heat-pump hot water supply apparatus of the first embodiment is described.
Fig. 2 is the running to the supplying hot water running of next day from the storage hot water at night, relating to the flow chart of the motion of 1 day of study control of the heat-pump hot water supply apparatus of the first embodiment.
Operation control section part 51 has study control parts, it stores the supplying hot water use amount the supplying hot water use amount estimating next day that learn every day, determine storage hot water temperature and the storage hot water amount at night, simultaneously with above-mentioned storage hot water amount application to give a discount night the electricity charge stipulated time (such as 23 point ~ 7 points) in the mode of boiling set storage hot water and operate start time.
When becoming storage hot water running start time, the operation control section part 51,52 of heat-pump hot water supply apparatus starts to store hot water running (step S61).
Namely, operation control section part 52 carries out following storage hot water running, namely, starting compressor 1, decompressor 4, Air Blast fan 6, start heat pump running, simultaneously control pump 15, the tank storage hot water from receiver 10 bottom cycle is carried out heat exchange at water refrigerant heat exchanger 2 and high temperature refrigerant, become the high-temperature water of set point of temperature, return from receiver 10 top.
Secondly, the storage hot water amount that operation control section part 51 carries out receiver 10 based on the detection signal from multiple tank temperature sensor 10a, 10b, 10c, 10d judges (step S62).When storage hot water temperature and storage hot water amount do not reach setting, continue the running of storage hot water, after reaching setting, operation control section part 52 stops heat pump operating, and terminates storage hot water running (step S63).
User is when hot water brought into use by tap 14 of fetching boiling water (step S64), operation control section part 51 adjusts the output from hot water mixing valve 12 for the mode that hot water temperature becomes thermophilic (being generally about 42 DEG C), starts with the feeding loop of the metalwork 7 that supplies water, pressure-reducing valve 8, flow sensor 9, receiver 10, hot water mixing valve 12, supplying hot water metalwork 13, tap 14 supplying hot water running (step S65) supplying thermophilic water.In addition, supplying hot water is carried out with the hydraulic pressure of the watering from running water pipe etc. during supplying hot water running.
Secondly, closed tap 14 and terminate hot water use after (step S66), supplying hot water stops, and hot water mixing valve 12 is set at the position of regulation, and supplying hot water running stops (step S67).
And then, after operation control section part 51 (step S65) and supplying hot water in supplying hot water running operate and stop (step S67), detect the storage hot water temperature in receiver 10 by tank temperature sensor 10a, 10b, 10c, 10d and store hot water amount, carrying out the judgement (step S68) of the tank delayed heat water yield.
Be generally the above surplus hot water of ormal weight, do not carry out tank boiling running, but the presumption amount obtained than study control in supplying hot water use amount is many, when tank surplus hot water quantity not sufficient setting, carry out tank boiling running (step S69), in storage hot water amount judges (step S70), after storage hot water temperature and storage hot water amount reach setting, terminate tank boiling running (step S71).
Repeat step S64 ~ step S71, until user's hot water of 1 day uses terminate (in step S72 No), after the hot water of 1 day uses and terminates, (in step S72 Yes), operation control section part 51 makes study control parts (not shown) work.Namely, operation control section part 51 detects tank surplus hot water's temperature and the delayed heat water yield based on the detection signal from multiple tank temperature sensor 10a, 10b, 10c, 10d, calculate the hot water use amount of every 1 day, the presumption carrying out use amount next day calculates, carry out applicable its storage hot water temperature and storage hot water amount, the storage hot water running storage such as start time hot water operating conditions setting (step S73).
In addition, the presumption of the hot water use amount of next day that study control parts carry out calculates and usually estimates in the mode fully met by means of only the storage hot water running at night the hot water use amount calculating next day based on the outer temperature degree in past about 7 days and hot water use amount etc.
In addition, hot water uses the time terminated usually to give a discount the electricity charge time period at night 23 points that (23 point ~ 7 point) start.
Thus, running to supplying hot water from the storage hot water at the night of heat-pump hot water supply apparatus uses the motion of 1 day terminated to terminate.
In addition, based on the storage hot water operating condition set in step S73, when becoming storage hot water running start time, (step S61) is operated according to the storage hot water that storage hot water operating condition starts to use for the supplying hot water of next day.
The precipitation > of < scale
Then, the precipitation of scale is described.
In heat-pump hot water supply apparatus, usually use drinking public water supply as by heating liquid.Containing the hardness components such as calcium and magnesium in drinking public water supply.
With regard to hardness components, water temperature is higher, and solubility is lower.Drinking public water supply is heated by water refrigerant heat exchanger 2, and super oversaturated hardness components is separated out in water.Separate out hardness components a part with together flowed into receiver 10 by the water heated, pile up in the bottom of receiver 10.In addition, the hardness components flowing into receiver 10 is also discharged when tank draining.
In addition, a part for the hardness components of precipitation is separated out at the inwall of the water side heat-transfer pipe 2b of water refrigerant heat exchanger 2, is stacked into the inwall of water side heat-transfer pipe 2b as scale gradually.
Particularly, when teletostage high temperature (routine え ば 90 DEG C) storage hot water running, the refrigerant temperature sprayed from compressor 1 also reaches more than 100 DEG C, water refrigerant heat exchanger 2 water side heat-transfer pipe 2b go out hot water side high-temperature portion, the solubility of the hardness components in water extremely reduces, and separates out at the inwall of water side heat-transfer pipe 2b.Hinder the water circulation in the heat-transfer pipe 2b of water side because of the scale of separating out at inwall, thus heating properties reduces.When scale is separated out further, hinder the flowing of water, can not water circulation be carried out, sometimes become and can not carry out the situation operated of seething with excitement.
Therefore, judge the precipitation of scale, need when scale is separated out the running carrying out being suitable for control.
The water quality (hardness of hardness components) arranging the place of heat-pump hot water supply apparatus is significantly different according to area, even if also water quality is different sometimes in areal.In addition, also hardness changed according to season sometimes, was difficult to the generation predicting scale.
In addition, carry out the constituent analysis of water when also considering to arrange heat-pump hot water supply apparatus, hardness carrys out the method that tool side scale occurs by inquiry, but not only needs operation and expense, and when changing according to season, can not correctly judge hardness at every turn.
< scale is separated out and is judged >
Then, with reference to Fig. 1 and use Fig. 3 ~ Fig. 6 illustrate scale separate out judge.
Fig. 3 is the water of water refrigerant heat exchanger of the heat-pump hot water supply apparatus representing the first embodiment and the chart of the variations in temperature of cold-producing medium.
In addition, the longitudinal axis represents the temperature of cold-producing medium and water (by heating liquid).Transverse axis represents the length direction of water refrigerant heat exchanger 2, and the position of length 0% is the entrance of water, and the position of length 100% is the outlet of water.
Water for entering coolant-temperature gage, carries out heat exchange with the cold-producing medium flowed with counter current flow in the position of length 0%, becomes hot water temperature in heat exchanger length 100% position, i.e. export department.
The operation control section part 52 of heat-pump hot water supply apparatus adjusts the aperture of circularly cooling dosage or adjustment decompressor 4 by the flow that adjusts pump 15 or the rotating speed that changes compressor 1, and the mode becoming set point of temperature to go out hot water temperature carries out running control.
The water of water refrigerant heat exchanger when Fig. 4 is the scale precipitation of the heat-pump hot water supply apparatus representing the first embodiment and the chart of the variations in temperature of cold-producing medium.
With regard to hardness components, water temperature is higher, and solubility is less, more easily separates out, therefore, and the precipitation of scale from the region that water becomes high temperature.
When scale is separated out in high-temperature portion, scale is separated out at the wall of water side heat-transfer pipe 2b, thus, compare scale undecomposed normal time, the heat transfer performance of water refrigerant heat exchanger 2 reduces in high-temperature portion.Therefore, the gradient (inclination of the chart shown in Fig. 4) that the water of high-temperature portion and the temperature of cold-producing medium rise reduces.
At this, go out hot water temperature's such as above-mentioned mode becoming set point of temperature to go out hot water temperature and to be operated control, therefore, with scale undecomposed normal time and scale separate out time independently become certain.
Namely, when scale is separated out, operation control section part 52 is by control pump 15 make the flow of water reduce amount that the heat transfer performance near high-temperature portion reduces or control the rotating speed of compressor 1 and the aperture of decompressor 4 makes circulating mass of refrigerant increase, carries out using hot water temperature and the identical control of set point of temperature.
Like this, when scale is separated out, in the high-temperature portion that scale is separated out, heat transfer property reduces, the rising gradient (inclination of the chart shown in Fig. 4) of the variations in temperature of water and cold-producing medium reduces, in the undecomposed region of scale, reduced the flow of water by the mode becoming set point of temperature to go out hot water temperature and/or circulating mass of refrigerant is increased, the rising gradient (inclination of the chart shown in Fig. 4) of the variations in temperature of water and cold-producing medium increases.
In addition, although scale undecomposed normal time and scale when separating out to go out hot water temperature certain, because the performance of water refrigerant heat exchanger 2 reduces, so the efficiency reduction of the freeze cycle such as the power consumption increase that reduces of heating efficiency.Therefore, also consider that the performance of presumption water refrigerant heat exchanger 2 reduces, judge the method for the precipitation of scale.But, the operating condition of freeze cycle according to outer temperature degree, humidity, enter the various environmental conditions such as coolant-temperature gage and change, therefore, the performance according to the operating condition presumption water refrigerant heat exchanger 2 of freeze cycle reduces and judges that the precipitation of scale is extremely difficult.
At this, as shown in Figure 1, the heat-pump hot water supply apparatus of the first embodiment possesses the water pipe temperature sensor 24 of the temperature of the water of the midway of the water side heat-transfer pipe 2b detecting water refrigerant heat exchanger 2.
Fig. 5 is the temperature that the temperature sensor being located at water side heat-transfer pipe of the heat-pump hot water supply apparatus representing the first embodiment detects and the chart of relation going out hot water temperature.
As shown in Figure 5, when the running course of event of heat-pump hot water supply apparatus, namely when the wall of water side heat-transfer pipe 2b separates out scale, the temperature that water pipe temperature sensor 24 detects rises, close to going out hot water temperature.This be in order to, in the further downstream side (outlet of the installation site ~ water side heat-transfer pipe 2b of water pipe temperature sensor 24) of position being provided with water pipe temperature sensor 24, because of the precipitation of scale, heat transfer performance reduces, and carries out heat exchange further at the more upstream side (installation site of the entrance ~ water pipe temperature sensor 24 of water side heat-transfer pipe 2b) of the position being provided with water pipe temperature sensor 24.
Fig. 6 is that the scale of the heat-pump hot water supply apparatus that the first embodiment is described separates out the chart judged.
As above-mentioned, just go out with regard to hot water temperature, due to scale undecomposed normal time and scale separate out time be set point of temperature, so it does not change.On the other hand, as used illustrated by Fig. 5, the detected value of water pipe temperature sensor 24 rises while scale is separated out, and reduces with the temperature difference going out hot water temperature.
Therefore, water refrigerant heat exchanger 2 the part (going out hot water temperature sensor 20) detecting hot water temperature more upstream side heat exchange midway position install water pipe temperature sensor 24, by detecting this temperature, the precipitation of scale can be judged, in addition, that also can predict that scale separates out by this temperature levels carries out degree.
In addition, water pipe temperature sensor 24 can be the surface of the water side heat-transfer pipe 2b being fixed on water refrigerant heat exchanger 2, according to the temperature sensor of pipe arrangement temperature detection coolant-temperature gage, also can be temperature detecting part is installed, the temperature sensor of the temperature of direct-detection water in the heat-transfer pipe 2b of water side.
But, when detecting the temperature on heat-transfer pipe 2b surface, water side, be preferably set to the structure of the mode do not affected by the refrigerant temperature of refrigerant side heat-transfer pipe 2a.
In addition, when being provided with temperature detecting part in the heat-transfer pipe 2b of water side, can the temperature of direct-detection water, therefore, can more high-precision judgement be carried out.
In addition, scale due to from become high temperature water side heat-transfer pipe 2b outlet near separate out, so preferably water pipe temperature sensor 24 is arranged on the position of the outlet side close to water side heat-transfer pipe 2b, be preferably mounted at relative to going out the position of hot water temperature than low 2 DEG C ~ 10 DEG C of temperature time normal.When almost there is no temperature difference, may misinterpretation be produced, when temperature difference is excessive, when the precipitation of a small amount of scale, at least can not judge variations in temperature.
Such as, when going out hot water temperature and being 90 DEG C, be 85 DEG C with the detected temperatures of the water pipe temperature sensor 24 time normal and be described.Under the undecomposed state of scale (time normal) be the hot water of 85 DEG C while scale is separated out, the detected temperatures of water pipe temperature sensor 24 rises.
At this, such as, setting value is set to 87 DEG C, after the detected temperatures of water pipe temperature sensor 24 becomes 87 DEG C, is judged to be that scale is separated out, carry out the change controlled that operates, prevent the carrying out that scale is separated out.
In addition, the judgement that scale is separated out can judge as with the temperature difference going out hot water temperature, also initial value can be set to 5 DEG C (90 DEG C-85 DEG C), the setting value that scale judges is set to 3 DEG C (90 DEG C-87 DEG C).
< scale separates out the change > controlled that judges and operate
In addition, the setting value judging the precipitation of scale can, as one, also can be multiple.When being provided with multiple setting value, also interimly can changing running and controlling.
Fig. 7 is that the scale of the heat-pump hot water supply apparatus that the first embodiment is described separates out the flow chart judging and operate the change controlled.
In Fig. 7, be provided with three setting values relative to the temperature difference of the detected temperatures going out hot water temperature and water pipe temperature sensor 24.
Operation control section part 52 controls heat pump unit 30, carries out boiling running (step S101).In addition, after boiling running starts, the temperature of the water in water refrigerant heat exchanger 2 is unstable, therefore, after circulation becomes stable state, enters step S102.
Operation control section part 52 obtains out the detected temperatures of hot water temperature and water pipe temperature sensor 24 from going out hot water temperature sensor 20, calculate difference (temperature difference) (the step S102) of the detected temperatures of hot water temperature and water pipe temperature sensor 24.
Operation control section part 52 judges the temperature difference obtained in step S102 whether as more than first setting value (step S103).When temperature difference is more than first setting value (in step S103 Yes), operation control section part 52 makes the precipitation of scale disappear or becomes trace, the upper limit of the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 90 DEG C (step S104), continues boiling running.
On the other hand, in temperature difference less than (in step S103 No) when the first setting value, be judged to be that scale starts to separate out, enter step S105.
That is, being provided with hardness components in the water quality in the place of heat-pump hot water supply apparatus many, by carrying out the boiling (90 DEG C) of high temperature, being judged to be that scale is separated out.
Operation control section part 52 judges the temperature difference obtained in step S102 whether as more than second setting value (step S 105).In addition, the second setting value is the value less than the first setting value.When temperature difference is more than second setting value (in step S105 Yes), operation control section part 52 makes the precipitation of scale reduce, and the upper limit of the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 80 DEG C (step S106), continues boiling running.
In running afterwards, the upper limit going out hot water temperature is set to 80 DEG C.Hardness components is high temperature, and saturation capacity more reduces, and hot water starts to separate out.By reducing the temperature of boiling, the amount of precipitation of scale can be reduced.
On the other hand, in temperature difference less than (in step S105 No) when the second setting value, step S107 is entered.
Operation control section part 52 judges that whether the temperature difference obtained in step S102 is as more than 3rd setting value (step S107).In addition, the 3rd setting value is the value less than the second setting value.When temperature difference is more than 3rd setting value (in step S107 Yes), the precipitation of scale is set to middle degree by operation control section part 52, the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 75 DEG C, license boiling on daytime running, and on remote controller 50, show this message (step S108), continue boiling running.
That is, even if the upper limit going out hot water temperature is set to 80 DEG C, be also judged to be that scale is separated out, in running afterwards, the upper limit going out hot water temperature be set to 75 DEG C.The further reduction upper limit, prevents the precipitation of scale, proceeds the running of heat-pump hot water supply apparatus.
In addition, by reducing boiling temperature, the heat being stored in receiver 10 also reduces, and produces disconnected hot water in may using by day.Heat-pump hot water supply apparatus has various operation mode sometimes.Considering economical, when being only set as the operation mode of time period (such as 11 point ~ 7 points) license running at dead of night, sometimes can not bear the supplying hot water load of a day with the storage hot water amount of late night hours section.Consider this situation, the running of compulsory licensing day time period, prevent disconnected hot water, can be corresponding with the request that the supplying hot water of user needs.In this situation, also can show license running on daytime at remote controller 50.
On the other hand, when temperature difference less than the 3rd setting value less than (in step S107 No), enter step S109.
The precipitation of scale is set to greatly by operation control section part 52, and the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 65 DEG C, license boiling on daytime running, and this message is shown maintenance call (step S109) at remote controller 50, continues boiling running.
That is, hot water temperature will be gone out and be set to 65 DEG C.In this case, can not be reduced it and above go out hot water temperature, when carrying out the precipitation of scale, also may block water side heat-transfer pipe 2b, therefore, showing maintenance call at remote controller 50, ask to safeguard to user.
But, heat-pump hot water supply apparatus due to the state for still operating, so Problem can be carried out according to the degree of convenience of user.In addition, the running due to the heat-pump hot water supply apparatus of urgency can be avoided to stop and the situation of supplying hot water can not be used.
In addition, scale also can by material removings such as the cleaning agents of acid, alkali or load, and cleaning expends time in, and in addition, significantly separates out at scale, when piling up, is also sometimes difficult to remove completely.Therefore, by carrying out calling comparatively early, the running of heat-pump hot water supply apparatus can be continued until accept maintenance.
Like this, when being judged to be that scale is separated out, switch to the running suppressing scale to be separated out, carry out the suppression of separating out, simultaneously when the precipitation of scale is carried out further, by carrying out maintenance call comparatively early, the fascination that the running of anxious heat-pump hot water supply apparatus can not be brought to stop and so on to user and maintaining.
In addition, in Fig. 7, the change that the running carrying out reducing boiling temperature controls, but as the running suppressing scale to be separated out, the circulating mass of refrigerant of the circulation by shortening the duration of runs, when changing running, change the flow etc. of pump 15 and bring the operating condition of impact to be also effective on the precipitation of scale, in addition, changing by combining various running, also can suppress to separate out.In addition, also can make hot water circuit, implement the scale of precipitation to be dissolved again etc. and control for the running except disincrustant.
" the second embodiment "
Secondly, use Fig. 8 and Fig. 9 that the heat-pump hot water supply apparatus of the second embodiment is described.
Fig. 8 is the structural representation of the heat-pump hot water supply apparatus of the second embodiment.
The heat-pump hot water supply apparatus (with reference to Fig. 8) of the second embodiment replaces the water refrigerant heat exchanger 2 of the heat-pump hot water supply apparatus (with reference to Fig. 1) of the first embodiment, possesses: low temperature side water refrigerant heat exchanger 2A, high temperature side water refrigerant heat exchanger 2B, cold-producing medium connecting pipings 3a, water connecting pipings 3b.
The cold-producing medium sprayed from compressor 1 flows into the refrigerant side heat transfer pipe 2Ba of high temperature side water refrigerant heat exchanger 2B and water side heat-transfer pipe 2Bb and carries out heat exchange, the refrigerant side heat transfer pipe 2Aa flowing into low temperature side water refrigerant heat exchanger 2A via cold-producing medium connecting pipings 3a carries out heat exchange with water side heat-transfer pipe 2Ab, and inflow decompressor 4.
On the other hand, the water at low temperature sprayed from pump 15 flows into the water side heat-transfer pipe 2Ab of low temperature side water refrigerant heat exchanger 2A and rises to the temperature of certain degree, flow into the water side heat-transfer pipe 2Bb of high temperature side water refrigerant heat exchanger 2B afterwards via water connecting pipings 3b, be heated to set point of temperature and store hot water from the top of receiver 10.
Like this, by water refrigerant heat exchanger is set to 2 segment structures, the internal diameter of the water side heat-transfer pipe 2Bb of high temperature side water refrigerant heat exchanger 2B can be increased, can strengthen the precipitation of scale.In addition, be set to dismountable structure by the water side heat-transfer pipe 2Bb of the high temperature side of being separated out by scale, maintenance when scale is separated out becomes easy.
In addition, water pipe temperature sensor 24 is located at water connecting pipings 3b.Thus, on the surface for water pipe temperature sensor 24 being fixed on water connecting pipings 3b, when temperature sensor according to pipe arrangement temperature detection coolant-temperature gage, also can detected temperatures accurately.
Fig. 9 is the water of water refrigerant heat exchanger of the heat-pump hot water supply apparatus representing the second embodiment and the chart of the variations in temperature of cold-producing medium.
As shown in Figure 9, the cold-producing medium connecting pipings 3a be connected low temperature side water refrigerant heat exchanger 2A with high temperature side water refrigerant heat exchanger 2B and water connecting pipings 3b does not carry out heat exchange, the therefore par of formation temperature.By arranging water pipe temperature sensor 24 at this par (i.e. water connecting pipings 3b), the impact of the error of the temperature that the dislocation being difficult to be subject to installation site brings, can more precisely detect.
" the 3rd embodiment "
Secondly, use Figure 10 and Figure 11 that the heat-pump hot water supply apparatus of the 3rd embodiment is described.
The difference of the heat-pump hot water supply apparatus of the heat-pump hot water supply apparatus of the 3rd embodiment and the first embodiment and the second embodiment is that the decision method that scale is separated out is different.
The heat-pump hot water supply apparatus of the 3rd embodiment possess the water temperature (warm water) going out hot water side entering water temperature sensor 21, detect water refrigerant heat exchanger 2 of the water temperature of the water inlet side detecting water refrigerant heat exchanger 2 go out hot water temperature sensor 20, water refrigerant heat exchanger 2 water pipe way in the water pipe temperature sensor 24 that arranges, carry out the judgement of scale precipitation.
Figure 10 is that the scale of the heat-pump hot water supply apparatus that the 3rd embodiment is described separates out the chart judged.
As shown in Figure 10, if the thermograde of the water in water refrigerant heat exchanger 2 be set to linearly, then can calculate temperature when water pipe temperature sensor 24 does not separate out scale normal according to the installation site entering coolant-temperature gage and go out hot water temperature and water pipe temperature sensor 24.
The temperature calculated according to this and the difference of detected temperatures detected by water pipe temperature sensor 24, can judge the precipitation of scale.That is, can be judged to be the temperature that calculates and the temperature difference of detected temperatures detected by water pipe temperature sensor 24 larger, scale is more separated out.
Figure 11 is that the scale of the heat-pump hot water supply apparatus that the 3rd embodiment is described separates out the flow chart judging and operate the change controlled.
Operation control section part 52 controls heat pump unit 30, carries out boiling running (step S201).In addition, after boiling running starts, the temperature of the water in water refrigerant heat exchanger 2 is unstable, therefore, if circulation becomes stable state, then enters step S202.
Operation control section part 52 obtains out hot water temperature according to going out hot water temperature sensor 20, and obtains into coolant-temperature gage according to entering water temperature sensor 21, calculate the scale of installation site of water pipe temperature sensor 24 undecomposed normal time coolant-temperature gage.And operation control section part 52 obtains the detected temperatures of water pipe temperature sensor 24, computing calculate normal time temperature and difference (temperature difference) (the step S202) of detected temperatures of water pipe temperature sensor 24.
Operation control section part 52 judges that whether the temperature difference obtained in step S202 is as below the 4th setting value (step S203).When temperature difference is below the 4th setting value (in step S203 Yes), operation control section part 52 makes the precipitation of scale disappear or becomes trace, the upper limit of the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 90 DEG C (step S204), continues boiling running.
On the other hand, when temperature difference is larger than the 4th setting value (in step S203 No), is judged to be that scale starts to separate out, enters step S205.
That is, being provided with hardness components in the water quality in the place of heat-pump hot water supply apparatus many, by carrying out the boiling (90 DEG C) of high temperature, being judged to be that scale is separated out.
Operation control section part 52 judges that whether the temperature difference obtained in step S202 is as below the 5th setting value (step S205).In addition, the 5th setting value is the value larger than the 4th setting value.When temperature difference is below the 5th setting value (in step S205 Yes), the precipitation of scale is set to little by operation control section part 52, the upper limit of the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 80 DEG C (step S206), continues boiling running.
In running afterwards, the upper limit going out hot water temperature is set to 80 DEG C.Hardness components is high temperature, and saturation capacity is fewer, and therefore, hot water starts to separate out.By reducing the temperature of boiling, the amount of precipitation of scale can be reduced.
On the other hand, when temperature difference is larger than the 5th setting value (in step S205 No), step S207 is entered.
Operation control section part 52 judges that whether the temperature difference obtained in step S202 is as below the 6th setting value (step S207).In addition, the 6th setting value is the value larger than the 5th setting value.When temperature difference is below the 6th setting value (in step S207 Yes), the precipitation of scale is set to middle degree by operation control section part 52, the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 75 DEG C, license boiling on daytime running, and this message is shown (step S208) at remote controller 50, proceed boiling running.
That is, even if the upper limit going out hot water temperature is set to 80 DEG C, also can be judged to be that the precipitation of scale is carried out, in running afterwards, the upper limit going out hot water temperature be set to 75 DEG C.The further reduction upper limit, prevents the precipitation of scale, proceeds the running of heat-pump hot water supply apparatus.
In addition, by reducing boiling temperature, the heat being stored in receiver 10 also reduces, and therefore, produces disconnected hot water in may using by day.Heat-pump hot water supply apparatus has various operation mode sometimes.Consider economical, when being only set as the operation mode of time period (flowing into 11 point ~ 7 points) license running at dead of night, the storage hot water amount of late night hours section can not bear the supplying hot water load of a day sometimes.Consider this situation, the running of compulsory licensing day time period, the section of preventing hot water, can respective user supplying hot water need requirement.In this situation, also can show license running on daytime at remote controller 50.
On the other hand, when temperature difference is larger than the 6th setting value (in step S207 No), step S209 is entered.
The precipitation of scale is set to greatly by operation control section part 52, and the set point of temperature of boiling temperature, instant-heating and outlet hot temperature is set to 65 DEG C, license boiling on daytime running, and this message is shown maintenance call (step S209) at remote controller 50, continues boiling running.
That is, hot water temperature will be gone out and be set to 65 DEG C.In this situation, can not be reduced it and above go out hot water temperature, when the precipitation of scale is carried out, also may block water side heat-transfer pipe 2Bb, so show maintenance call at remote controller 50, ask to safeguard to user.
But heat-pump hot water supply apparatus is used for the state for still operating, so can carry out overhauling or safeguarding according to the degree of convenience of user.In addition, the running because of the heat-pump hot water supply apparatus of urgency can be avoided to stop and the situation of supplying hot water can not be used.
Like this, when being judged to be that scale is separated out, switch to the running of the precipitation suppressing scale, carry out the suppression of separating out, simultaneously, when the precipitation of scale is carried out further, by carrying out maintenance call comparatively early, the fascination that the running of anxious heat-pump hot water supply apparatus can not be brought to stop and so on to user and maintaining.
In addition, owing to also using the judgement carrying out scale precipitation into coolant-temperature gage, even if so when entering coolant-temperature gage and significantly changing, also can carry out scale aptly and separate out judgement.
In addition, the heat-pump hot water supply apparatus of present embodiment is not limited to the structure of above-mentioned embodiment, can carry out various change without departing from the spirit and scope of the present invention.
Such as, in the formation of above-mentioned embodiment, water in receiver 10 is passed out to the structure of water refrigerant heat exchanger 2 by the liquid pipe arrangement be set to via the bottom being connected to receiver 10, but also can for sending the structure of water (by heating liquid) from the arbitrary watering beyond receiver 10 to water refrigerant heat exchanger 2.Such as, also can for the structure that the water reduced pressure by pressure-reducing valve 8 is sent to water refrigerant heat exchanger 2.
In addition, in the structure of above-mentioned embodiment, be set to and the water heated by water refrigerant heat exchanger 2 is store forming of hot water from the pipe arrangement on the top being connected to receiver 10 in receiver 10, but also can for without going out the structure of hot water from supplying hot water metalwork 13 supplying hot water by receiver 10 by ionized water refrigerant heat exchanger 2.
In addition, the position of pump 15 is not limited to the upstream side of water refrigerant heat exchanger 2, also can be the downstream of water refrigerant heat exchanger 2.
In addition, when taking carbon dioxide as cold-producing medium, become supercritical steam cycle, the high temperature of about 90 degree can be brought up to, owing to there is the precipitation risk of scale, and be supercritical steam cycle, so there is the trend that the temperature linearity of the water of water refrigerant heat exchanger and the heat exchange of cold-producing medium is passed, therefore effective especially.As cold-producing medium, for HFC series coolant, HC series coolant too, by detected temperatures, the precipitation of scale can be judged.
Description of symbols
1: compressor; 2: water refrigerant heat exchanger (liquid refrigerant heat exchanger); 2a, 2Aa, 2Ba: refrigerant side heat transfer pipe; 2b, 2Ab, 2Bb: water side heat-transfer pipe; 2A: low temperature side water refrigerant heat exchanger (liquid refrigerant heat exchanger); 2B: high temperature side water refrigerant heat exchanger (liquid refrigerant heat exchanger); 3a: cold-producing medium connecting pipings; 3b: water connecting pipings (liquid pipe arrangement); 4: decompressor; 5: air heat exchanger; 6: Air Blast fan; 7: water supply metalwork; 8: pressure-reducing valve; 9: flow sensor; 10: receiver; 10a, 10b, 10c, 10d: tank temperature sensor; 12: hot water mixing valve; 13: supplying hot water metalwork; 14: tap; 15: pump; 20: go out hot water temperature sensor's (the first temperature sensor); 21: enter water temperature sensor (three-temperature sensor); 22: ejection temperature sensor; 23: outer gas temperature sensor; 24: water pipe temperature sensor (the second temperature sensor); 30: heat pump unit; 40: storage liquid unit; 50: remote control (notifying parts); 51,52: operation control section part.
Claims (13)
1. a heat-pump hot water supply apparatus, it possesses:
To the heat pump refrigerant loop that the refrigerant side heat transfer pipe of major general's compressor, liquid refrigerant heat exchanger, decompressor and air heat exchanger are connected by refrigerant piping and form,
Hydraulic fluid side heat-transfer pipe to major general's pump and described liquid refrigerant heat exchanger connected by liquid pipe arrangement and form by heating liquid loop,
Detect the outlet side of described liquid refrigerant heat exchanger by the first temperature sensor of the temperature of heating liquid,
Control described heat pump refrigerant loop and/or the described operation control section part being carried out heating liquid running by heating liquid loop, it is characterized in that,
Described liquid refrigerant heat exchanger has high temperature side liquid refrigerant heat exchanger and low temperature side liquid refrigerant heat exchanger,
In the liquid pipe arrangement that the hydraulic fluid side heat-transfer pipe of the hydraulic fluid side heat-transfer pipe of described high temperature side liquid refrigerant heat exchanger and described low temperature side liquid refrigerant heat exchanger is coupled together, possess the second temperature sensor, its detect than by described first temperature sensor detected temperatures by heating liquid more upstream side by the temperature of heating liquid.
2. heat-pump hot water supply apparatus according to claim 1, is characterized in that,
The described hydraulic fluid side heat-transfer pipe of described liquid refrigerant heat exchanger is located at by described second temperature sensor.
3. heat-pump hot water supply apparatus according to claim 1, is characterized in that,
Described second temperature sensor is fixed on the surface of pipe, is by the temperature sensor of the temperature of heating liquid according to the temperature detection of described pipe.
4. heat-pump hot water supply apparatus according to claim 1, is characterized in that,
Described second temperature sensor be by set temperature test section in the stream of the pipe of heating liquid direct-detection by the temperature sensor of the temperature of heating liquid.
5. heat-pump hot water supply apparatus according to claim 1, is characterized in that,
The precipitation judging scale is differed between the temperature that described operation control section part detects according to described first temperature sensor and the temperature that detects of described second temperature sensor.
6. heat-pump hot water supply apparatus according to claim 1, is characterized in that,
Also possess: detect the entrance side of described liquid refrigerant heat exchanger by the three-temperature sensor of the temperature of heating liquid,
Difference between the temperature that the thermometer that described operation control section part detects according to the temperature detected based on described first temperature sensor and described three-temperature sensor calculates and the temperature that described second temperature sensor detects, judges the precipitation of scale.
7. heat-pump hot water supply apparatus according to claim 5, is characterized in that,
Described operation control section part, when being judged to be that scale is separated out, changes described heat pump refrigerant loop and/or described by the running in heating liquid loop.
8. heat-pump hot water supply apparatus according to claim 7, is characterized in that,
The change of described running be change to the outlet side that makes described liquid refrigerant heat exchanger by the running of the setting low temperature of the temperature of heating liquid.
9. heat-pump hot water supply apparatus according to claim 7, is characterized in that,
The change of described running possesses threshold value corresponding to multiple and described temperature difference, make according to this threshold value the outlet side of described liquid refrigerant heat exchanger by the setting low temperature of the temperature of heating liquid.
10. heat-pump hot water supply apparatus according to claim 8, is characterized in that,
Possess: store by described liquid refrigerant heat exchanger heats by the receiver of heating liquid,
Described operation control section part carries out heating liquid running at evening hours, store in described receiver high temperature by heating liquid, and, when change to the outlet side that makes described liquid refrigerant heat exchanger by the running of the setting low temperature of the temperature of heating liquid, force the running changing to the boiling running performing daylight hours.
11. heat-pump hot water supply apparatus according to claim 5, is characterized in that,
Possess: the notifying parts notifying the operating condition of described heat-pump hot water supply apparatus to user,
Described operation control section part, when being judged to be that scale is separated out, notifies the precipitation of scale by described notifying parts.
12. heat-pump hot water supply apparatus according to claim 5, is characterized in that,
Possess: notifying parts user being notified to the operational situation of described heat-pump hot water supply apparatus,
Described operation control section part possesses multiple threshold value corresponding with being judged to be described temperature difference that scale is separated out, make according to this threshold value the outlet side of described liquid refrigerant heat exchanger by the setting low temperature of the temperature of heating liquid, and when the precipitation of scale is carried out, by the precipitation of described notifying parts notice scale.
13. heat-pump hot water supply apparatus according to claim 1, is characterized in that,
Described cold-producing medium is carbon dioxide.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-127971 | 2010-06-03 | ||
| JP2010127971A JP5444127B2 (en) | 2010-06-03 | 2010-06-03 | Heat pump water heater |
| PCT/JP2010/064099 WO2011151933A1 (en) | 2010-06-03 | 2010-08-20 | Heat pump hot-water supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102918332A CN102918332A (en) | 2013-02-06 |
| CN102918332B true CN102918332B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080067195.1A Expired - Fee Related CN102918332B (en) | 2010-06-03 | 2010-08-20 | Heat pump hot-water supply device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5444127B2 (en) |
| KR (1) | KR101465571B1 (en) |
| CN (1) | CN102918332B (en) |
| WO (1) | WO2011151933A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013242055A (en) * | 2012-05-18 | 2013-12-05 | Panasonic Corp | Water heater |
| JP6071352B2 (en) * | 2012-09-07 | 2017-02-01 | 三菱重工業株式会社 | Heat pump system |
| JP2014196849A (en) * | 2013-03-29 | 2014-10-16 | パナソニック株式会社 | Heat pump water heater |
| JP6239289B2 (en) * | 2013-07-11 | 2017-11-29 | 三菱重工サーマルシステムズ株式会社 | Heat pump hot water supply system |
| JP6168958B2 (en) * | 2013-10-01 | 2017-07-26 | 三菱電機株式会社 | Hot water apparatus and abnormality notification method in hot water apparatus |
| CN106403297B (en) * | 2015-07-31 | 2019-11-05 | 青岛经济技术开发区海尔热水器有限公司 | Control method of water heater and water heater |
| CN106568111A (en) * | 2015-10-09 | 2017-04-19 | 上海日立电器有限公司 | Carbon dioxide heat pump heating system |
| CN105352016A (en) * | 2015-12-15 | 2016-02-24 | 重庆财信合同能源管理有限公司 | Hot water supply system |
| EP3495760B1 (en) * | 2016-08-05 | 2022-08-10 | Mitsubishi Electric Corporation | Heat exchanger and refrigeration cycle device provided with heat exchanger |
| CN107763896A (en) * | 2017-12-01 | 2018-03-06 | 青岛新欧亚能源有限公司 | A kind of Split type air source heat pump system |
| CN109700321A (en) * | 2019-02-25 | 2019-05-03 | 佛山市顺德区阿波罗环保器材有限公司 | A kind of cleaning method of liquid heating apparatus and its hot-water heating system and the hot-water heating system |
| CN113785162B (en) * | 2019-05-10 | 2023-02-17 | 三菱电机株式会社 | Heat storage system |
| CN110953715B (en) * | 2019-12-25 | 2022-04-22 | 青岛海尔新能源电器有限公司 | Dynamic descaling control method for heat pump hot water unit |
| CN111503889A (en) * | 2020-04-09 | 2020-08-07 | 青岛海尔空调电子有限公司 | Circulating air source heat pump water heater and control method thereof |
| CN114636397A (en) | 2020-12-15 | 2022-06-17 | 艾欧史密斯(中国)热水器有限公司 | Water heater, and scale detection system and method |
| CN112716293B (en) * | 2021-01-27 | 2022-12-06 | 上海朴道水汇环保科技股份有限公司 | Method and system for detecting scale of heating hot liner of water dispenser |
| CN114766914B (en) * | 2022-04-18 | 2024-07-16 | 广东顺德星声电子实业有限公司 | Heating assembly, heating method thereof and water dispenser |
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- 2010-08-20 WO PCT/JP2010/064099 patent/WO2011151933A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2011252676A (en) | 2011-12-15 |
| WO2011151933A1 (en) | 2011-12-08 |
| CN102918332A (en) | 2013-02-06 |
| KR20130010484A (en) | 2013-01-28 |
| JP5444127B2 (en) | 2014-03-19 |
| KR101465571B1 (en) | 2014-11-26 |
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