CN107178903A - Solar heat pump water heating apparatus and its control method - Google Patents
Solar heat pump water heating apparatus and its control method Download PDFInfo
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- CN107178903A CN107178903A CN201610134744.1A CN201610134744A CN107178903A CN 107178903 A CN107178903 A CN 107178903A CN 201610134744 A CN201610134744 A CN 201610134744A CN 107178903 A CN107178903 A CN 107178903A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 172
- 238000010438 heat treatment Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 74
- 239000003054 catalyst Substances 0.000 claims description 52
- 230000008676 import Effects 0.000 claims description 18
- 230000009194 climbing Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000008236 heating water Substances 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000011144 upstream manufacturing 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
-
- 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
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- 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 invention provides a kind of solar heat pump water heating apparatus and its control method.The solar heat pump water heating apparatus includes water tank；Heat pump heating device, it is thermally coupled with water tank, to utilize the water in the working media heating water tank in it；And solar heat collector, with flow passage selector device, and it is thermally coupled with water tank and heat pump heating device, flow passage selector device is configured to controllably make solar heat collector heat the water in water tank and the offer heat of the working media into heat pump heating device, or the working media offer heat only into heat pump heating device successively.The solar heat pump water heating apparatus of the present invention disclosure satisfy that user is round-the-clock to hot water amount, the requirement of hot water heating speed.
Description
Technical field
The present invention relates to field of water heaters, more particularly to a kind of solar heat pump water heating apparatus and its controlling party
Method.
Background technology
Current water heater is generally divided into fuel-firing gas-firing water heater, electric heating hot water, solar water heater, sky
Air supply heat pump water heater etc. is several.Fuel-firing gas-firing water heater be by burning liquid gas, natural gas, kerosene,
The mineral such as alcohol or organic-fuel heat a kind of water heater of water, and such water heater is easily fired by fuel
The influences of the factors such as the fluctuation of burning degree and hydraulic pressure is and not enough in oxygen supply so as to cause fluctuating temperature ratio larger
In the case of, the toxic gases such as carbon monoxide are easily produced, can when having very big injury serious to human body
Poisoning can be caused, it is often more important that need to consume substantial amounts of non-renewable resources, use cost is high,
Effect on environment is also larger.Electric heating hot water is a kind of hot water heated by consuming high-grade electric energy
Device, the type obtains water heater using more convenient, but for electric energy service efficiency than relatively low, and easily
There is the potential safety hazard of electric shock.Solar water heater is that one kind is a kind of using vacuum tube collection solar water heater
Solar energy is collected the water heater that heats using vacuum tube, environmentally friendly and operating cost is low, the i.e. sun
There is the not enough defect of hot water temperature made from rainy weather in energy water heater.Air source hot pump water heater is a kind of
Using inverse Carnot's principle from natural environment draw heat, and consume a small amount of band electric energy and transfer energy to water and make
The elevated water heater of its temperature, but there is heating capacity when environment temperature is relatively low in air source hot pump water heater
Not enough defect.In order to solve the above problems, some existing schemes realize the sun using four magnetic valves
Evaporator heat supply, or individually feed-tank heat supply can be individually given, to realize two kinds of heat-supplying modes.However, these
Systematic comparison is complicated, and cost is higher；And its solar energy system can only give evaporator or water tank heat supply respectively,
Make solar energy system utilization rate not high, and it is larger to be likely to result in heat pump evaporation load, influence heat pump system
System reliability.
The content of the invention
One purpose of first aspect present invention is intended to overcome existing solar water heater and air source heat pump
At least one defect of water heater is there is provided a kind of solar heat pump water heating apparatus, and it can solve solar water
The water heating defect that device and air source hot pump water heater are individually present, to obtain higher, stable water temperature.
Another purpose of first aspect present invention is solar energy to be made feed-tank and evaporator heat supply simultaneously, is carried
The utilization rate of high solar.
One purpose of second aspect of the present invention is to provide for a kind of for above-mentioned solar heat pump water heating apparatus
Control method.
According to the first aspect of the invention, the invention provides a kind of solar heat pump water heating apparatus, including：
Water tank；
Heat pump heating device, it is thermally coupled with the water tank, to heat the water tank using the working media in it
In water；With
Solar heat collector, with flow passage selector device, and with the water tank and the heat pump heating device
Thermally coupled, it is described that the flow passage selector device is configured to controllably to make the solar heat collector to heat successively
Water in water tank and the working media into the heat pump heating device provide heat, or only to described
The working media in heat pump heating device provides heat.
Alternatively, the solar heat collector also includes：
Solar thermal collector, is configured to absorb catalyst carrier of the solar energy heating in it, and with catalyst carrier import
With catalyst carrier outlet；
First Heat Exchanger, its inlet communication to the catalyst carrier is exported, and is configured to heat the water in the water tank；
Bypass line, its inlet communication to the catalyst carrier is exported；And
Second heat exchanger, the outlet of the First Heat Exchanger and the outlet of the bypass line are communicated to described
The import of second heat exchanger, second heat exchanger is configured to the work into the heat pump heating device
Medium provides heat；And
The flow shifting device is configured to controllably make the catalyst carrier flow out after the solar thermal collector
Enter second heat exchanger via the First Heat Exchanger, or the catalyst carrier is flowed out the solar energy collection
Passed through after hot device and second heat exchanger is entered by the bypass line.
Alternatively, the flow shifting device includes the first valve and the second valve, and first valve is set
It is placed on the pipeline between the import of the First Heat Exchanger and catalyst carrier outlet, second valve is set
It is placed on the bypass line；Or
The flow shifting device is electric T-shaped valve, its import and the catalyst carrier outlet, two
Outlet is respectively communicated with the import of the First Heat Exchanger and the bypass line.
Alternatively, the heat pump heating device has condenser and the first evaporator, and the condenser and institute
State water tank thermally coupled, first evaporator is connected with second exchanger heat.
Alternatively, the First Heat Exchanger is built-in coil heat exchanger, is arranged in the water tank；
The condenser is externally-wound type coil heat exchanger or externally-wound type concurrent flow micro-channel heat exchanger, is arranged at institute
On the outer wall for the inner bag for stating water tank.
Alternatively, first evaporator and second heat exchanger are heat exchanger tube；And
First evaporator and second heat exchanger are respectively two heat exchanger tubes of plate type heat exchanger, or
First evaporator and second heat exchanger are respectively the inner and outer tubes of double pipe heat exchanger.
Alternatively, the heat pump heating device also includes the second evaporator, second evaporator and described the
One evaporator series are arranged in parallel.
Alternatively, second evaporator is finned tube evaporator.
Alternatively, the solar heat collector also has pumping installations, is configured to promote the catalyst carrier to follow
Circulation is moved；The catalyst carrier is anti-icing fluid or water.
According to the second aspect of the invention, it is used for any of the above-described kind of solar heat pump present invention also offers one kind
The control method of hot water apparatus, it includes：
The water temperature in the water tank is detected, the first detection temperature is obtained；And detect the solar energy heating dress
The temperature of the catalyst carrier in the catalyst carrier exit for the solar thermal collector put, obtains the second detection temperature；
Difference between first detection temperature and target water temperature is more than or equal to default first threshold
When, start the solar heat collector；
Judge whether second detection temperature is more than first detection temperature, if so, then judging described the
Whether the difference between two detection temperatures and first detection temperature is more than default Second Threshold；Described
When difference between second detection temperature and first detection temperature is more than the Second Threshold, make it is described too
Positive energy heater heats the water in the water tank and the work into the heat pump heating device successively
Medium provides heat；
Judge whether the climbing speed of first detection temperature is less than or equal to default 3rd threshold value, and
Judge whether the difference between second detection temperature and first detection temperature is less than or equal to described
Second Threshold；
When the climbing speed of first detection temperature is less than or equal to three threshold value, or described the
When difference between two detection temperatures and first detection temperature is less than or equal to the Second Threshold, start
The heat pump heating device；And the difference between second detection temperature and first detection temperature is small
When the Second Threshold, make the solar heat collector only into the heat pump heating device
The working media provides heat；
After the solar heat collector is started, judgement obtains second detection temperature more than described first
Difference between detection temperature, and second detection temperature and first detection temperature is less than or equal to
The Second Threshold, starts the heat pump heating device, and make the solar heat collector only to the heat
The working media in pump heater provides heat.
Because solar heat collector can individually heat water tank in the solar heat pump water heating apparatus of the present invention
In water, individually heat the evaporator of heat pump heating device, and can first heat the water in water tank, then profit
With the evaporator of waste-heat heat pump heating device, heat pump heating device can also work independently, can be by weather feelings
Condition is also simultaneously operable from the water heating mode most saved, and raising heats water speed, also can be standby each other,
Ensure the supply of user's hot water.The solar heat pump water heating apparatus of the present invention disclosure satisfy that user is round-the-clock to hot water
Amount, the requirement of hot water heating speed, greatly extend Teat pump boiler territory of use, improve heat pump
Efficiency when reliability.
, can be according to the load after solar energy heating in the solar heat pump water heating apparatus and its control method of the present invention
The climbing speed control solar heat pump water heating apparatus of thermit powder temperature and Water in Water Tanks temperature and Water in Water Tanks temperature
Work, the various demands such as energy-conservation, high water temperature, rapid hot water output can be achieved.
According to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will
More understand above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Some of the invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter specific
Embodiment.Identical reference denotes same or similar part or part in accompanying drawing.Art technology
Personnel are it should be understood that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the schematic diagram of solar heat pump water heating apparatus according to an embodiment of the invention；
Fig. 2 is the schematic diagram of solar heat pump water heating apparatus according to an embodiment of the invention.
Embodiment
Fig. 1 is the schematic diagram of solar heat pump water heating apparatus according to an embodiment of the invention.Such as
Shown in Fig. 1, the embodiments of the invention provide a kind of solar heat pump water heating apparatus, the solar heat pump and water heating
Device may include water tank 20, heat pump heating device 30, solar heat collector 40, controller 50 and temperature
Detection means.
Water tank 20 may include to be used to store water in inner water tank, heat-insulation layer and shell, and inner water tank.
Heat pump heating device 30 can have compressor, condenser 31, restricting element and the first evaporator 32.
Restricting element is electric expansion valve or capillary.Work is filled with the circulation line of heat pump heating device 30
Medium, such as freon or natural refrigerant refrigerant.Heat pump heating device 30 and water tank 20 are thermally coupled, with profit
With the water in the working media heating water tank 20 in it.Specifically, condenser 31 and water tank 20 are thermally coupled,
To heat the water in water tank 20.
Solar heat collector 40 have flow passage selector device, and with water tank 20 and heat pump heating device 30
Thermally coupled, flow passage selector device is configured to controllably make solar heat collector 40 heat in water tank 20 successively
Water and working media into heat pump heating device 30 heat is provided, or only to heat pump heating device 30
Interior working media provides heat.Specifically, solar heat collector 40 further comprises solar energy heating
Device 41, First Heat Exchanger 42, bypass line, the second heat exchanger 43.Solar thermal collector 41 is configured to inhale
Catalyst carrier of the solar energy heating in it is received, and is exported with catalyst carrier import and catalyst carrier.First Heat Exchanger 42
Import with bypass line is communicated to catalyst carrier outlet, the outlet of First Heat Exchanger 42 and bypass line
Outlet is communicated to the import of the second heat exchanger 43, the outlet of the second heat exchanger 43 to catalyst carrier import.
Moreover, First Heat Exchanger 42 is configured to heat the water in water tank 20, the second heat exchanger 43 is configured to heat
Working media in pump heater 30 provides heat.Flow shifting device is electrically connected with controller 50, and
Can be configured to controllably makes catalyst carrier flow out after solar thermal collector 41 through entering second by First Heat Exchanger 42
Heat exchanger 43, or catalyst carrier is flowed out after solar thermal collector 41 through entering the second heat exchanger by bypass line
43。
Temperature-detecting device is electrically connected with controller 50, it may include environment temperature sensor, water tank temperature are passed
Sensor 61, solar energy leaving water temperature sensors 62, compressor air suction temperature sensor etc..Water tank temperature is passed
Sensor 61 is arranged in water tank 20, to detect the water temperature in water tank 20.Solar energy leaving water temperature sensors
62 are arranged at catalyst carrier exit, with the temperature of the catalyst carrier in the catalyst carrier exit of detecting solar thermal collector
Degree.Environment temperature sensor and compressor air suction temperature sensor are respectively used to detection environment temperature and compressor
Suction temperature.
In some embodiments of the invention, as shown in figure 1, flow shifting device can be electric T-shaped valve 47,
It is arranged at catalyst carrier exit, import and the catalyst carrier outlet of electric T-shaped valve 47, two outlets point
Not Lian Tong First Heat Exchanger 42 and bypass line import.In some alternate embodiments of the present invention,
As shown in Fig. 2 flow shifting device may include two two-port valves, such as the first valve 44 and the second valve 45.
Catalyst carrier exit can be provided with three-way pipe, and two outlets of three-way pipe are respectively communicated with the He of First Heat Exchanger 42
The import of bypass line.And first valve 44 be arranged at the import of First Heat Exchanger 42 and catalyst carrier exports it
Between pipeline on.Second valve 45 is arranged on bypass line.Preferably, the first valve 44 and the second valve
Door 45 is magnetic valve.
In some embodiments of the invention, solar thermal collector 41 can have glass tube heat collector or flat board
Heat collector.Catalyst carrier is preferably anti-freeze type catalyst carrier, and such as anti-icing fluid prevents catalyst carrier from freezing in winter.
Solar heat collector 40 also has pumping installations 46, is configured to promote catalyst carrier to circulate.At some
In alternate embodiment, catalyst carrier is alternatively water.
In some embodiments of the invention, First Heat Exchanger 42 is built-in coil heat exchanger, is arranged at
In water tank 20.Condenser 31 be externally-wound type coil heat exchanger or externally-wound type concurrent flow micro-channel heat exchanger, if
On the outer wall for being placed in the inner bag of water tank.In some alternate embodiments, First Heat Exchanger 42 can be heating
On coil pipe, the outer wall for being arranged at the inner bag of water tank 20.Condenser 31 can be built-in heat exchanger, be arranged at
In water tank 20.Further, First Heat Exchanger 42 may be disposed at the bottom of water tank 20, and condenser 31 can
It is arranged at the top of water tank 20.
In some embodiments of the invention, the first evaporator 32 and the second heat exchanger 43 are thermally coupled, so that
Working media of second heat exchanger 43 into heat pump heating device 30 provides heat.Second heat exchanger 43 with
First evaporator 32 is monolithic construction, in order to which the first evaporator 32 and the second heat exchanger 43 carry out heat
Exchange.For example, the second heat exchanger 43 and the first evaporator 32 may make up two-way heat exchanger, such as bushing type is changed
Hot device, plate type heat exchanger etc..Specifically, the first evaporator 32 and the second heat exchanger 43 are heat exchanger tube；
And first evaporator 32 and the second heat exchanger 43 be respectively plate type heat exchanger two heat exchanger tubes, or first steam
Send out the inner and outer tubes that the heat exchanger 43 of device 32 and second is respectively double pipe heat exchanger.
Preferably, in some embodiments of the embodiment, the first evaporator 32 can also be arranged to same
When there is the evaporator of heat in absorption air.In other embodiments, heat pump heating device 30 is also
Including the second evaporator 33 and blower fan 34 so that heat pump heating device 30 in solar heat collector 40 not
Worked independently during work.Second evaporator 33 and the serial or parallel connection of the first evaporator 32 are set.For example, the
Two evaporators 33 are finned tube evaporator etc..Specifically, the second evaporator 33 and the first evaporator 32
Series connection, and as shown in figure 1, the second evaporator 33 is arranged at the upstream of the first evaporator 32.
The solar heat pump water heating apparatus of the embodiment of the present invention can have multiple-working mode：Work as solar energy heating
When the endothermic effect of device 41 is fabulous, solar heat collector 40 is worked, and the first valve 44 is opened, the second valve
Door 45 is closed, and heat pump heating device 30 does not work, and solar energy can individually heat the water in water tank 20.When
During 41 endothermic effect extreme difference of solar thermal collector, the first valve 44 and the second valve 45 can be closed, too
Positive energy heater 40 does not work, and heat pump heating device 30 works independently, individually to heat in water tank 20
Water.Preferably, solar heat collector 40 and heat pump heating device 30 are also simultaneously operable, and work as the sun
When the energy endothermic effect of heat collector 41 is not so good or general, the first valve 44 is opened, and the second valve 45 is closed,
Solar energy first heats the water in water tank 20, recycles the waste-heat heat pump heating device 30 after heating water
First evaporator 32, to make full use of solar energy.When the endothermic effect of solar thermal collector 41 is poor, the
One valve 44 is closed, and the second valve 45 is opened, and solar energy only heats the first steaming of heat pump heating device 30
Device 32 is sent out, to improve the operating efficiency of heat pump heating device.
The solar heat pump water heating apparatus of the embodiment of the present invention has heat pump heating device 30 and solar energy heating
Double heatings that device 40 is constituted, can be by weather condition from the water heating mode most saved；Can be same
When work, raising heat water speed；Can be standby each other, it is ensured that user's hot water is supplied.Dual system can be single
Solely work, in parallel can also work simultaneously, can also connect and work simultaneously, disclosure satisfy that user is round-the-clock to hot water
Amount, the requirement of hot water heating speed.Solar heat collector 40 can as heat pump heating device 30 heat
Source, greatly extends the territory of use of heat driven heat pump heater 30, improves the energy of heat pump heating device 30
Imitate when reliability.
The embodiment of the present invention additionally provides a kind of solar heat pump and water heating dress being used in any of the above-described embodiment
The control method put, the control method may include：
The water temperature in water tank is detected, the first detection temperature is obtained；And the sun of detection solar heat collector
The temperature of the catalyst carrier in the catalyst carrier exit of energy heat collector, obtains the second detection temperature.In order to control heat pump
The work of heater, will also detect that environment temperature obtains the 3rd detection temperature；And the suction of detection compressor
Temperature degree, obtains the 4th detection temperature.
When difference between the first detection temperature and target water temperature is more than or equal to default first threshold, open
Dynamic solar heat collector.
Judge the second detection temperature whether be more than the first detection temperature, if so, then judge the second detection temperature with
Whether the difference between the first detection temperature is more than default Second Threshold；
When difference between the second detection temperature and the first detection temperature is more than Second Threshold, add solar energy
Thermal heats the water in water tank successively and the working media into heat pump heating device provides heat, that is,
Say, catalyst carrier is flowed out solar thermal collector, enter the second heat exchanger by by First Heat Exchanger, finally return
Return solar thermal collector；
Judge whether the climbing speed of the first detection temperature is less than or equal to default 3rd threshold value, and judge
Whether the difference between the second detection temperature and the first detection temperature is less than or equal to Second Threshold；
The first detection temperature climbing speed be less than or equal to three threshold values when, or the second detection temperature with
When difference between first detection temperature is less than or equal to Second Threshold, start heat pump heating device；And
When difference between two detection temperatures and the first detection temperature is less than or equal to Second Threshold, make solar energy heating
Working media of the device only into heat pump heating device provides heat, i.e. catalyst carrier is flowed out solar energy heating
Device, enters the second heat exchanger by by bypass line, finally returns to solar thermal collector.Heat pump heating device
During work, opening for blower fan start and stop and throttling arrangement can be controlled according to the 3rd detection temperature and the 4th detection temperature
Degree.
After solar heat collector is started, judgement obtains the second detection temperature and is more than the first detection temperature, with
And the second difference between detection temperature and the first detection temperature is less than or equal to Second Threshold, starts heat pump and add
Thermal, and working media of the solar heat collector only into heat pump heating device is provided heat, i.e.
Catalyst carrier is flowed out solar thermal collector, enter the second heat exchanger by by bypass line, finally return to the sun
Energy heat collector, and start heat pump heating device.
In the control method, it may also include：Difference between the first detection temperature and target water temperature is more than
Or during equal to default first threshold, judgement obtains the second detection temperature less than or equal to the first detection temperature,
The pumping installations of solar heat collector can be made not work and (can be regarded as solar heat collector not work),
Start heat pump heating device, to rely solely on heat pump heating device heat hot water.
The control method can make controller according to the catalyst carrier exit of coolant-temperature gage, solar thermal collector in water tank
Catalyst carrier temperature and water tank water temperature climbing speed etc., automatically control the first valve and the second valve start and stop,
Control pumping installations start and stop and control compressor and blower fan start and stop, realize user's energy-conservation, high water temperature,
The various demands such as rapid hot water output.
So far, although those skilled in the art will appreciate that detailed herein have shown and described the present invention's
Multiple exemplary embodiments, still, still can be according to this without departing from the spirit and scope of the present invention
Disclosure of invention directly determines or derived many other variations or modifications for meeting the principle of the invention.Cause
This, the scope of the invention should be understood and defined as covering other all these variations or modifications.
Claims (10)
1. a kind of solar heat pump water heating apparatus, it is characterised in that including：
Water tank；
Heat pump heating device, it is thermally coupled with the water tank, to heat the water tank using the working media in it
In water；With
Solar heat collector, with flow passage selector device, and with the water tank and the heat pump heating device
Thermally coupled, it is described that the flow passage selector device is configured to controllably to make the solar heat collector to heat successively
Water in water tank and the working media into the heat pump heating device provide heat, or only to described
The working media in heat pump heating device provides heat.
2. solar heat pump water heating apparatus according to claim 1, it is characterised in that the solar energy
Heater also includes：
Solar thermal collector, is configured to absorb catalyst carrier of the solar energy heating in it, and with catalyst carrier import
With catalyst carrier outlet；
First Heat Exchanger, its inlet communication to the catalyst carrier is exported, and is configured to heat the water in the water tank；
Bypass line, its inlet communication to the catalyst carrier is exported；And
Second heat exchanger, the outlet of the First Heat Exchanger and the outlet of the bypass line are communicated to described
The import of second heat exchanger, second heat exchanger is configured to the work into the heat pump heating device
Medium provides heat；And
The flow shifting device is configured to controllably make the catalyst carrier flow out after the solar thermal collector
Enter second heat exchanger via the First Heat Exchanger, or the catalyst carrier is flowed out the solar energy collection
Passed through after hot device and second heat exchanger is entered by the bypass line.
3. solar heat pump water heating apparatus according to claim 2, it is characterised in that
The flow shifting device includes the first valve and the second valve, and first valve be arranged at it is described
On pipeline between the import of First Heat Exchanger and catalyst carrier outlet, second valve is arranged at described
On bypass line；Or
The flow shifting device is electric T-shaped valve, its import and the catalyst carrier outlet, two
Outlet is respectively communicated with the import of the First Heat Exchanger and the bypass line.
4. solar heat pump water heating apparatus according to claim 2, it is characterised in that
The heat pump heating device has condenser and the first evaporator, and the condenser and water tank heat
Connection, first evaporator is connected with second exchanger heat.
5. solar heat pump water heating apparatus according to claim 4, it is characterised in that
The First Heat Exchanger is built-in coil heat exchanger, is arranged in the water tank；
The condenser is externally-wound type coil heat exchanger or externally-wound type concurrent flow micro-channel heat exchanger, is arranged at institute
On the outer wall for the inner bag for stating water tank.
6. solar heat pump water heating apparatus according to claim 4, it is characterised in that
First evaporator and second heat exchanger are heat exchanger tube；And
First evaporator and second heat exchanger are respectively two heat exchanger tubes of plate type heat exchanger, or
First evaporator and second heat exchanger are respectively the inner and outer tubes of double pipe heat exchanger.
7. solar heat pump water heating apparatus according to claim 4, it is characterised in that
The heat pump heating device also includes the second evaporator, second evaporator and first evaporator
Serial or parallel connection is set.
8. solar heat pump water heating apparatus according to claim 7, it is characterised in that
Second evaporator is finned tube evaporator.
9. solar heat pump water heating apparatus according to claim 2, it is characterised in that
The solar heat collector also has pumping installations, is configured to promote the catalyst carrier to circulate；
The catalyst carrier is anti-icing fluid or water.
10. a kind of control of solar heat pump water heating apparatus for any one of claim 1 to 9
Method, it is characterised in that including：
The water temperature in the water tank is detected, the first detection temperature is obtained；And detect the solar energy heating dress
The temperature of the catalyst carrier in the catalyst carrier exit for the solar thermal collector put, obtains the second detection temperature；
Difference between first detection temperature and target water temperature is more than or equal to default first threshold
When, start the solar heat collector；
Judge whether second detection temperature is more than first detection temperature, if so, then judging described the
Whether the difference between two detection temperatures and first detection temperature is more than default Second Threshold；Described
When difference between second detection temperature and first detection temperature is more than the Second Threshold, make it is described too
Positive energy heater heats the water in the water tank and the work into the heat pump heating device successively
Medium provides heat；
Judge whether the climbing speed of first detection temperature is less than or equal to default 3rd threshold value, and
Judge whether the difference between second detection temperature and first detection temperature is less than or equal to described
Second Threshold；
When the climbing speed of first detection temperature is less than or equal to three threshold value, or described the
When difference between two detection temperatures and first detection temperature is less than or equal to the Second Threshold, start
The heat pump heating device；And the difference between second detection temperature and first detection temperature is small
When the Second Threshold, make the solar heat collector only into the heat pump heating device
The working media provides heat；
After the solar heat collector is started, judgement obtains second detection temperature more than described first
Difference between detection temperature, and second detection temperature and first detection temperature is less than or equal to
The Second Threshold, starts the heat pump heating device, and make the solar heat collector only to the heat
The working media in pump heater provides heat.
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| CN201610134744.1A CN107178903A (en) | 2016-03-09 | 2016-03-09 | Solar heat pump water heating apparatus and its control method |
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| CN109764379A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of energy resource system and its control method |
| CN111069246A (en) * | 2019-12-30 | 2020-04-28 | 江苏洁净企业管理有限公司 | Kitchen waste treatment device and control method thereof |
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