CN203454431U - Household wall-hung flat plate solar thermal pump water heater - Google Patents

Household wall-hung flat plate solar thermal pump water heater Download PDF

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Publication number
CN203454431U
CN203454431U CN201320497795.2U CN201320497795U CN203454431U CN 203454431 U CN203454431 U CN 203454431U CN 201320497795 U CN201320497795 U CN 201320497795U CN 203454431 U CN203454431 U CN 203454431U
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heat
water heater
solar
temperature
compressor
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蒋绿林
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H & C Environmental Science Inc
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H & C Environmental Science Inc
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

The utility model discloses a household wall-hung flat plate solar thermal pump water heater, which comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a heat-collecting plate core of a flat plate solar heat-collecting plate and a tube-wing type heat-collecting evaporator which is formed integrally with an evaporator of a thermal pump, a solar thermal pump compressor, a thermal expansion valve, a reservoir, a drying filter and an electromagnetic valve; the indoor unit comprises a controller, a hot water storing tank and a coil condenser arranged inside the hot water storing tank; running of the flat plate solar thermal pump water heater is realized by controlling the compressor, the thermal expansion valve and the electromagnetic valve with the controller. Through the way, various complex, variable and severe working conditions of a solar heat-collecting evaporator are eliminated successfully, and the application of a thermal pump technology to the solar heat utilization is realized; compared with a solar water heater and an air source thermal pump water heater, the household wall-hung flat plate solar thermal pump water heater has the advantages that the efficiency is increased greatly; meanwhile, the problems of anti-freezing of a flat plate solar water heater in winter, defrosting of the air source thermal pump water heater in winter, and the like are solved.

Description

Domestic hanging plate type solar heat pump water heater
Technical field
The utility model relates to solar thermal utilization and heat pump system designs and manufacturing technology field, particularly relates to a kind of Domestic hanging plate type solar heat pump water heater.
Background technology
The unique channel that solar water heater is come into city is, as Split air source hot pump water heater is installed, Split wall-mounted solar water heater is installed.Its concrete technology path of implementing is that solar heat-collection plate is arranged on to the outer facade (as balcony, metope, sunshade etc.) of building south orientation, heat storage water tank is arranged on indoor, and collecting plate and heat storage water tank part are arranged thermal-arrest circulation line.
Solar heat-collection plate is arranged on facade and must and builds perfect adaptation, meet the requirement of architecture-integral, at numerous collecting plate middle plateform formula solar heat-collection plates with its distinctive advantage---daylighting area is large, bulk strength is high, can bearing operation, anticorrosive and appearance looks elegant and showing one's talent.But existing flat panel solar heat collecting plate is also because of the popularization of its intrinsic defective effect city Solar Heater Market, and these defects comprise: 1. low temperature environment and hot operation district efficiency are low; 2. the antifreeze problem of the following collecting plate of 0 ℃ of environment temperature.
Antifreeze is the problem that plate solar collecting plate needs most solution, in prior art, solving antifreeze problem the best way is to adopt anti-icing fluid as heating carrier, but anti-icing fluid can produce cracking inefficacy through being exposed to the sun of summer high-temperature, so anti-icing fluid (2-3 at the most) replacing every year once could fully guarantee the normal operation of system.
Air source hot pump water heater is because it is energy-conservation and easy for installation being widely used, but because it needs defrosting and low being subject to of system effectiveness to use restriction 0 ℃ of environment temperature below, in the northern area of China, almost cannot promote the use of.
Heat pump and solar water heater are thought to combination, when solar radiation is not enough, adopt heat pump hot water preparing, can guarantee the stable of heat supply, have again relatively high heating efficiency, energy-saving effect is remarkable.
The apparatus for heating water by solar energy that research is at present more and the combination of heat pump mainly contain direct-expansion-type and two kinds of indirect expansion types, and the heat collector of direct-expansion-type solar heat pump is directly as the evaporimeter of heat pump, and cold-producing medium directly absorbs solar radiant energy evaporation; The heat collector of expansion type solar heat pump separates with evaporator with heat pump indirectly, the hot water that cold-producing medium obtains from heat collector, absorbs heat of vaporization.
Direct-expansion-type solar heat pump compact conformation, and due to cold-producing medium heat absorption evaporation, heat-collecting plate core temperature is relatively not high and be evenly distributed, collecting efficiency can remain at higher level, required solar thermal collector area dwindles greatly, is the best-of-breed technology approach that realizes Domestic hanging plate type solar heat pump water heater.But the collecting efficiency of plate solar collector is subject to the impact of intensity of solar radiation and environment temperature very large, wherein the impact of intensity of solar radiation climate (as two seasons of summer in winter), environment (as fine in a nether world) and solar energy incidence angle is very large and extremely unstable, make solar thermal collector bear huge test as the evaporimeter of heat pump, the vexed solarization temperature of flat-plate solar collector is up to more than 130 ℃, it is very wide that the scope of evaporating temperature and pressure will become, and existing heat pump cannot adapt to these operating modes complicated and changeable at all.
Patent " directly expanding solar heat-pump water heater " (is authorized publication number: CN2520486, application number: 01276456Y) adopt without glass cover-plate, without the naked plate-type solar thermal collector of bottom insulation as evaporator with heat pump, avoided flat-plate solar collector operating mode complicated and changeable, but do not make full use of the high advantage of solar collector energy light energy conversion efficiency, simultaneously bare board is easily subject to environmental pollution (as surface adhesion dust etc.), and surperficial solar energy selective coating must have high corrosion resistance and weatherability.
Utility model patent " a kind of direct expanding solar heating pump hot-water heating system " (application number: 201210157307.3) adopt naked plate-type solar thermal collector and band glass solar heat collector to combine as evaporator with heat pump, control in real time collector area according to the variation of external environment by PLC and realize the relatively stable of heat pump working condition.This patent system is complicated, and same bare board is easily subject to environmental pollution (as surface adhesion dust etc.), and surperficial solar energy selective coating must have high corrosion resistance and weatherability.
How other direct expanding solar heating pump aspects of the prior art controls and realizes the complicated and changeable and various severe operating modes of solar heat pump if all not relating to.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of Domestic hanging plate type solar heat pump water heater, can solve:
1, Split wall-mounted flat plate solar water heater: 1. low temperature environment and hot operation district efficiency are low; 2. the problem such as antifreeze of the following collecting plate of 0 ℃ of environment temperature;
2, the low problem of air source hot pump water heater winter frost removing and system effectiveness.
3, the collecting efficiency of flat-plate solar collector is subject to the impact of intensity of solar radiation and environment temperature very large, vexed solarization temperature is especially up to more than 130 ℃, it is very wide that the scope of evaporating temperature and pressure will become, and existing direct expanding solar heating pump system cannot adapt to these complicated and changeable and various severe operating modes at all.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of Domestic hanging plate type solar heat pump water heater is provided, comprise: off-premises station and indoor set, described off-premises station comprises solar energy heating evaporimeter, solar energy heating evaporimeter inside is provided with tube wing type heat absorption evaporation plate core, the heat-collecting plate core of tube wing type heat absorption evaporation plate core in flat panel solar heat collecting plate and the evaporimeter of heat pump are integrally formed, and described indoor set comprises controller, heat storage water tank and the coiled tube condenser that is arranged on heat storage water tank inside.
In preferred embodiment of the utility model, described tube wing type heat absorption evaporation plate core top or inside are provided with evaporating heat-exchanging pipe and heat absorbing fins, between heat absorbing fins and evaporating heat-exchanging pipe, by welding or expanded joint mode, connect into a whole plate, the inside of evaporating heat-exchanging pipe is filled with cold-producing medium.
In preferred embodiment of the utility model, described tube wing type heat absorption evaporation plate core adopts many evaporating heat-exchanging pipe series connection, many evaporating heat-exchanging pipe parallel connections or the many series-parallel forms of evaporating heat-exchanging pipe.
In preferred embodiment of the utility model, described off-premises station also comprises compressor, reservoir, device for drying and filtering, magnetic valve and heating power expansion valve.
In preferred embodiment of the utility model, described solar energy heating evaporimeter is connected with coiled tube condenser vapour phase by compressor, and described coiled tube condenser is connected with solar energy heating evaporimeter liquid phase by reservoir, device for drying and filtering, magnetic valve and heating power expansion valve.
In preferred embodiment of the utility model, described compressor is solar heat pump compressor.
In preferred embodiment of the utility model, the evaporating temperature scope of described compressor is-15 ℃-45 ℃, and the suction temperature of compressor is≤80 ℃.
In preferred embodiment of the utility model, described controller and heat storage water tank are set to be wholely set or controller and heat storage water tank are separate type setting.
In preferred embodiment of the utility model, it is separate type setting that described controller and heat storage water tank are set to one or controller and heat storage water tank.
In preferred embodiment of the utility model, described controller comprises:
The first cooling-water temperature sensor, for detection of the water temperature of described heat storage water tank;
The second temperature sensor, for detection of the temperature of outdoor environment;
Three-temperature sensor, for detection of the temperature of described tube wing type heat absorption evaporation plate core;
The 4th temperature sensor, for detection of vaporized refrigerant temperature in solar energy heating evaporimeter.
The beneficial effects of the utility model are:
The evaporimeter of the heat-collecting plate core in flat panel solar heat collecting plate and heat pump is made and is integrally formed tube wing type thermal-arrest evaporimeter, evaporation and heat-exchange is even, whole heat-collecting plate core surface temperature is even, greatly reduce surface heat migration loss, liquid-gas phase transition heat transfer is simultaneously tens times of heat convection, with respect to solar water heating system efficiency, greatly improve, thoroughly solved the antifreeze problem of flat-plate solar collector simultaneously, by control, guarantee that thermal-arrest evaporator evaporation temperature can be not too low, overcome the problem of air source hot pump water heater winter frost removing and inefficiency, realize the high efficiency of solar energy heat pump system, by controller, realize compressor, the control of heating power expansion valve and magnetic valve, complicated and changeable and the various severe operating modes of solar energy heating evaporimeter have been overcome, realized heat pump techniques in the application of solar thermal utilization.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of Domestic hanging plate type solar heat pump water heater of the present utility model one preferred embodiment;
Fig. 2 is the structural representation of a preferred embodiment of tube wing type thermal-arrest evaporimeter of the present utility model;
Fig. 3 is that the A-A of Fig. 2 is to view;
In accompanying drawing, the mark of each parts is as follows: 1, solar energy heating evaporimeter, 2, tube wing type heat absorption evaporation plate core, 3, compressor, 4, controller, 5, heat storage water tank, 6, coiled tube condenser, 7, reservoir, 8, device for drying and filtering, 9, magnetic valve, 10, heating power expansion valve, 11, evaporating heat-exchanging pipe, 12, heat absorbing fins, 13, frame, 14, insulating, 15, transparent cover plate, 16, backboard.
The specific embodiment
Below the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 to Fig. 3, the utility model embodiment comprises:
A kind of Domestic hanging plate type solar heat pump water heater, comprise: off-premises station and indoor set, described off-premises station comprises solar energy heating evaporimeter 1, solar energy heating evaporimeter 1 inside is provided with tube wing type heat absorption evaporation plate core 2, the heat-collecting plate core of tube wing type heat absorption evaporation plate core 2 in flat panel solar heat collecting plate is integrally formed with the evaporimeter of heat pump, described indoor set comprise store up controller 4, heat storage water tank 5 and be arranged on heat storage water tank 5 inside by coiled tube condenser 6.
Described off-premises station also comprises compressor 3, reservoir 7, device for drying and filtering 8, magnetic valve 9 and heating power expansion valve 10, described solar energy heating evaporimeter 1 is connected with coiled tube condenser 6 vapour phases by compressor 3, and described coiled tube condenser 6 is connected with solar energy heating evaporimeter 1 liquid phase by reservoir 7, device for drying and filtering 8, magnetic valve 9 and heating power expansion valve 10.
In the utility model, adopt heat pump techniques to be applied in solar thermal utilization aspect, be specially the evaporimeter of the heat-collecting plate core of flat panel solar heat collecting plate and heat pump is integrally formed to tube wing type heat absorption evaporation plate core 2, the condenser of heat pump is made to coiled tube condenser 6 and be placed in the inside of heat storage water tank 5, be arranged on balcony or indoor.
Wherein, coiled tube condenser 6 can not be arranged on heat storage water tank 5 inside, by condenser secondary heat exchange is set independently or by coiled tube condenser 6 on the inner bladder outer wall of heat storage water tank 5.
Described tube wing type heat absorption evaporation plate core 2 tops or inside are provided with evaporating heat-exchanging pipe 11 and heat absorbing fins 12, between heat absorbing fins 12 and evaporating heat-exchanging pipe 11, by welding or expanded joint mode, connect into a whole plate, and the inside of evaporating heat-exchanging pipe 11 is filled with cold-producing medium.
Described tube wing type heat absorption evaporation plate core 2 adopts 11 series connection of many evaporating heat-exchanging pipes, many evaporating heat-exchanging pipe 11 parallel connection or the many series-parallel forms of evaporating heat-exchanging pipe 11.
Described solar energy heating evaporimeter 1 comprises tube wing type heat absorption evaporation plate core 2, frame 13, thermal insulation separation thermosphere 14, transparent cover plate 15 and backboard 16, as shown in Figure 2.
Wherein, the top of described tube wing type heat absorption evaporation plate core 2 is provided with transparent cover plate 15, the back of tube wing type heat absorption evaporation plate core 2 is provided with backboard 16, frame 13 is arranged on the surrounding of solar energy heating evaporimeter 1, and the backboard 16 of solar energy heating evaporimeter 1 and tube wing type absorb heat between evaporation plate core 2 and surrounding is provided with thermal insulation separation thermosphere 14.
Thermal insulation separation thermosphere 14 has adopted polyurethane foam or mineral wool, has stopped heat bridge, reduces heat waste, has greatly improved heat collector collecting efficiency.
Described transparent cover plate 15 adopts low iron, woven design, safety glass, and high transmission rate and woven design diffuse reflection make to form greenhouse effects between tube wing type heat absorption evaporation plate core 2 and glass inner chamber, and tempering makes intensity higher, not easy damaged.
The top of described tube wing type heat absorption evaporation plate core 2 or the inner evaporating heat-exchanging pipe 11 and heat absorbing fins 12 linking into an integrated entity that be provided with, the surface of heat absorbing fins 12 adopts magnetron sputtering titanium oxynitrides or electroplating black chromium solar coating for selective absorption, heat absorption rate reaches 95% ± 2%, emissivity is lower than 8%, stable performance.
Between described heat absorbing fins 12, be interconnected to a whole plate, evaporating heat-exchanging pipe 11 is connected by welding or expanded joint mode with heat absorbing fins 12.
Described evaporating heat-exchanging pipe 11 adopts the metals such as copper, alloy aluminum to make, by 11 series connection of many evaporating heat-exchanging pipes, form described tube wing type heat absorption evaporation plate core 2, or adopt the form of many evaporating heat-exchanging pipes 11 parallel connections, or adopt the series-parallel form of many evaporating heat-exchanging pipes 11.
The working medium of described heat pump inside adopts refrigerant R134a, vacuumizes injection.
Before solar heat pump startup, solar energy heating evaporimeter 1 inner flow passage is full of refrigerant vapour, at this moment the temperature of evaporimeter inner refrigerant steam equates with environment temperature, along with tube wing type heat absorption evaporation plate core 2 absorbs solar radiation energy, heat-absorbing plate core temperature rises, when heat-absorbing plate core temperature rises to higher during to certain value than environment temperature, open magnetic valve 9, refrigerant liquid in reservoir 7 enters into the runner of tube wing type thermal-arrest evaporimeter 1 inside by heating power expansion valve 10, start vaporizer also absorbs heat, and temperature and pressure starts to decline.
After time delay a period of time, start compressor 3, low-temperature low-pressure refrigerant steam in solar energy heating evaporimeter 1 enters compressor 3, the refrigerant vapour of discharging HTHP in compressor 3 outlets through compressor 3 actings enters the coiled tube condenser 6 condensation heat releases that are arranged in heat storage water tank 5 and heats the cold water in heat storage water tank 5, condensate liquid enters reservoir 7, enter evaporimeter by heating power expansion valve 10 step-down coolings under the effect of height pressure reduction in, absorb evaporation, thereby form a heat pump working cycles.
Along with heat storage water tank 5 inner cold water temperature improve constantly, the pressure at expulsion of compressor 3 and delivery temperature and the interior condensing pressure of coiled tube condenser 6 and condensation temperature also constantly raise, to adapt to dynamics and thermodynamical equilibrium under new operating mode, until the water temp. heating in heat storage water tank 5 is to when setting value, close battery valve 9, stop feed flow, in solar energy heating evaporimeter 1, residual liquid working medium can continue evaporation, until all dry up and form superheated steam, compressor 3 time delay certain hours are out of service.
In the utility model, in described evaporating heat-exchanging pipe 11, be full of cold-producing medium (R134a), be the moving state of stream-liquid two-phase flow, form dry type evaporation, have the following advantages:
1. original convective heat transfer liquid mode is changed over to phase-change heat-exchange mode, greatly reduce heat waste, improved heat transference efficiency, make plate solar collector just can keep high collecting efficiency at low-temperature space;
2. cold-producing medium is at evaporating heat-exchanging pipe 11 flow evaporations, and evenly fully, whole heat-collecting plate core surface temperature is even, greatly reduces surface heat and migrates loss in evaporation;
3. adopt refrigerant R134a as the working media of heat pump, within the scope of normal working temperature, system, all the time in operation under positive pressure, avoids conventional heat-tube vacuum to move many adverse effects of bringing;
4. within the scope of normal working temperature, working media, without freezing point, thoroughly solves antifreeze problem.
Above-mentioned some realized the efficient and stable operation that heat pump techniques is applied to solar water heating system.
Described compressor 3 is arranged on the outlet of solar energy heating evaporimeter 1, compressor 3 adopts follow-on solar heat pump dedicated compressor, the feature with evaporating temperature wide ranges (ceiling temperature reaches 45 ℃), suction temperature high (ceiling temperature reaches 80 ℃), is applicable to the complicated and changeable and various severe operating modes of solar heat pump.Coiled tube condenser 6 is arranged in heat storage water tank 5, directly heats the cold water in heat storage water tank 5, with respect to the condenser separated with heat storage water tank 5, has save heating water circulating pump, has avoided secondary heat exchange, and heat exchange efficiency is high.
In the outlet of coiled tube condenser 6, reservoir 7, device for drying and filtering 8, magnetic valve 9 and heating power expansion valve 10 have been installed, when heat storage water tank 5 water temperatures reach design temperature, first shut electromagnetic valve 9, close compressor 3 after time delay a period of time, can effectively avoid like this solar energy heating evaporimeter 1 to occur too high pressure, if do not stop the feed flow to solar energy heating evaporimeter 1, in sun-drenched situation, can make whole system hypertonia.
Controller 4 is arranged on indoor, can be arranged on heat storage water tank 5 and be made of one with water tank, also can be separated with heat storage water tank 5.Controller 4 arranges No. four temperature sensors: the first cooling-water temperature sensor, for detection of the water temperature of described heat storage water tank 5; The second temperature sensor, for detection of the temperature of surrounding environment; Three-temperature sensor, for detection of the temperature of described tube wing type heat absorption evaporation plate core 2; The 4th temperature sensor, for detection of vaporized refrigerant temperature in solar energy heating evaporimeter 1.
,Yi road, controller 4 control output ends, Hai San road (comprising the control output end that connects respectively compressor 3, auxiliary thermal source and magnetic valve 9) is connected the control output end (for high-low pressure protection etc.) of external alarm signal.Major function has:
1. temperature shows and controls: can show Water in Water Tank benign environment temperature, and within water tank temperature being controlled to the bound of design temperature;
2. the control of auxiliary electrical heater: controller has " automatically " and " economy " two kinds of operational modes, under " economy " pattern, does not electrically heatedly start;
3. delivery temperature protection: when excessive discharge temperature, stop unit operation and produce alarm signal;
4. external alarm function: a road external switch amount alarm signal input, can be arranged to often open, normally closed or forbidding, automatically restoring fault number of times and time can be set;
5. regularly section operation: there is regularly section operation function;
6. other: real-time clock (RTC), power-failure memory on-off state (can arrange), compressor 3 start delay protections, temperature sensor fault warning, fluoridize, test etc.
The operation principle of the utility model Domestic hanging plate type solar heat pump water heater is:
Sunlight sees through transparent cover plate 15 and is irradiated on tube wing type heat absorption evaporation plate core 2, now on heat absorbing fins 12, solar selectively absorbing coating absorbs solar radiant energy and is converted to heat energy, transfer heat to the cold-producing medium working medium of evaporating heat-exchanging pipe 11 inside simultaneously, make it to become steam state by liquid state heat absorption, under the effect of solar energy heating evaporimeter 1 import department's heating power expansion valve 10, vaporized refrigerant keeps certain degree of superheat to enter compressor 3, through compressor 3 compressions, form high-temperature high-pressure refrigerant steam, enter the coiled tube condenser 6 being arranged in heat storage water tank 5, by steam state heat release, be condensed into liquid state, cold water in cold-producing medium working medium condensation liberated heat heating heat storage water tank 5, liquid refrigerant working medium is passed through under pressure through reservoir 7, device for drying and filtering 8, magnetic valve 9 enters heating power expansion valve 10 throttling expansions, step-down cooling enters solar energy heating evaporimeter 1, again absorb the solar energy of changing from tube wing type heat absorption evaporation plate core 2 and enter next heat transmission circulation.
The start and stop of system are realized by controller 4, when tube wing type heat absorption evaporation plate core 2 temperature are set the temperature difference higher than environment temperature, show that solar energy irradiation intensity has reached certain value, open magnetic valve 9 delayed start-up compressor 3, and system starts.
When the water temperature of heat storage water tank 5 reaches set water temperature, shut electromagnetic valve 9 time-delay closing compressor 3; Or when tube wing type heat absorption evaporation plate core 2 temperature are set the temperature difference and tube wing type heat absorption evaporation plate core 2 temperature lower than setting value lower than environment temperature, close compressor 3, simultaneously shut electromagnetic valve 9.
Below set forth several special operating conditions:
Operating mode one a: nether world is fine.
When the fine climate condition in the nether world between occurring, solar radiation intensity there will be very large fluctuation, and when selecting invariable frequency compressor, the evaporating temperature of solar energy heating evaporimeter 1 is along with occurring very great fluctuation process, especially in winter, evaporating temperature there will be the situation lower than working conditions of compressor scope; Evaporating temperature is lower than 0 ℃ in addition, and system energy efficiency is just lower, may occur the phenomenon of frosting on glass cover-plate 15 surfaces of solar energy heating evaporimeter 1 simultaneously, is unfavorable for system stable operation.
For this operating mode, the utility model adopts control tube wing type heat absorption evaporation plate core 2 temperature to realize system stability and efficiently moves.When tube wing type heat absorption evaporation plate core 2 temperature are set the temperature difference higher than environment temperature, show that solar energy irradiation intensity has reached certain value, open magnetic valve 9 delayed start-up compressor 3, system starts.When heat storage water tank 5 water temperatures reach set water temperature, shut electromagnetic valve 9 time-delay closing compressor 3; Or when tube wing type heat absorption evaporation plate core 2 temperature are set the temperature difference (at this moment solar energy irradiation intensity is lower than certain value) and tube wing type heat absorption evaporation plate core 2 temperature lower than setting value lower than environment temperature, close compressor 3, simultaneously shut electromagnetic valve 9.When solar energy irradiation intensity raises again, reach certain value, when the evaporation plate of tube wing type heat absorption simultaneously core 2 temperature are set the temperature difference higher than environment temperature, again started compressor 3, completed the heating to cold water in heat storage water tank 5.
Operating mode two: heat storage water tank 5 has reached set water temperature, solar energy irradiation intensity is still very strong.
This operating mode often can be encountered in summer; if do not stop the feed flow to solar energy heating evaporimeter 1, in sun-drenched situation, can make solar energy heating evaporimeter 1 occur too high evaporating temperature and evaporating pressure; whole system hypertonia, is unfavorable for design and the operation steady in a long-term of system.
This time, system is controlled and is adopted shut electromagnetic valve 9 time-delay closing compressor 3, shut electromagnetic valve 9 stops to solar energy heating evaporimeter 1 feed flow, time-delay closing compressor 3, residual refrigerant liquid evacuator body in solar energy heating evaporimeter 1 is siphoned away, make, at the interior formation superheated steam of solar energy heating evaporimeter 1, to make whole system pressure decreased.
The beneficial effect of the utility model Domestic hanging plate type solar heat pump water heater is:
One, the evaporimeter of the heat-collecting plate core in flat panel solar heat collecting plate and heat pump is made and be integrally formed tube wing type heat absorption evaporation plate core 2, evaporation and heat-exchange is even, whole heat-collecting plate core surface temperature is even, greatly reduce surface heat migration loss, liquid-gas phase transition heat transfer is simultaneously tens times of heat convection, with respect to solar water heating system efficiency, greatly improves;
Two,, owing to adopting solar energy heating evaporimeter 1, cold-producing medium evaporating temperature is high compared with the air source heat pump evaporation temperature at equivalent environment temperature, so solar energy heat pump system COP value is high compared with air source heat pump system COP value;
Three, adopt cold-producing medium (R134a etc.) as heat pump working solution, the freezing point temperature of R134a is-103 ℃, has thoroughly solved the antifreeze problem of flat-plate solar collector;
Four, the solar energy heating evaporimeter 1 of solar energy is in low temperature (approaching environment temperature) operation all the time, and the solar energy thermal efficiency is up to more than 75%, and the thermal efficiency of more conventional solar thermal collector 40%-45% improves greatly;
Five, improve the operating mode of compressor 3, the evaporating temperature of compressor 3 and the suction temperature upper limit have been become to large, adapted to the excursion of direct expanding solar heating pump evaporating temperature and suction temperature;
Six, improve heating power expansion valve 10, the unlatching scope of heating power expansion valve 10 has been become to large, adapted to the variation of direct expanding solar heating pump refrigerant flow;
Seven, between heating power expansion valve 10 and reservoir 7, magnetic valve 9 is set, protection flat panel solar heat collecting evaporimeter 1 does not move under super-pressure;
Eight, by controlling the start and stop of compressor 3, guarantee that thermal-arrest evaporator evaporation temperature can be not too low, realize the high efficiency of solar energy heat pump system.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims (9)

1. a Domestic hanging plate type solar heat pump water heater, it is characterized in that, comprise: off-premises station and indoor set, described off-premises station comprises solar energy heating evaporimeter, solar energy heating evaporimeter inside is provided with tube wing type heat absorption evaporation plate core, the heat-collecting plate core of tube wing type heat absorption evaporation plate core in flat panel solar heat collecting plate and the evaporimeter of heat pump are integrally formed, and described indoor set comprises controller, heat storage water tank and the coiled tube condenser that is arranged on heat storage water tank inside.
2. Domestic hanging plate type solar heat pump water heater according to claim 1, it is characterized in that, described tube wing type heat absorption evaporation plate core top or inside are provided with evaporating heat-exchanging pipe and heat absorbing fins, between heat absorbing fins and evaporating heat-exchanging pipe, by welding or expanded joint mode, connect into a whole plate, the inside of evaporating heat-exchanging pipe is filled with cold-producing medium.
3. Domestic hanging plate type solar heat pump water heater according to claim 2, is characterized in that, described tube wing type heat absorption evaporation plate core adopts many evaporating heat-exchanging pipe series connection, many evaporating heat-exchanging pipe parallel connections or the many series-parallel forms of evaporating heat-exchanging pipe.
4. Domestic hanging plate type solar heat pump water heater according to claim 1, is characterized in that, described off-premises station also comprises compressor, reservoir, device for drying and filtering, magnetic valve and heating power expansion valve.
5. Domestic hanging plate type solar heat pump water heater according to claim 4, it is characterized in that, described solar energy heating evaporimeter is connected with coiled tube condenser vapour phase by compressor, and described coiled tube condenser is connected with solar energy heating evaporimeter liquid phase by reservoir, device for drying and filtering, magnetic valve and heating power expansion valve.
6. Domestic hanging plate type solar heat pump water heater according to claim 4, is characterized in that, described compressor is solar heat pump compressor.
7. Domestic hanging plate type solar heat pump water heater according to claim 4, is characterized in that, the evaporating temperature scope of described compressor is-15 ℃-45 ℃, and the suction temperature of compressor is≤80 ℃.
8. Domestic hanging plate type solar heat pump water heater according to claim 1, is characterized in that, described controller and heat storage water tank are set to be wholely set or controller and heat storage water tank are separate type setting.
9. Domestic hanging plate type solar heat pump water heater according to claim 8, is characterized in that, described controller comprises:
The first cooling-water temperature sensor, for detection of the water temperature of described heat storage water tank;
The second temperature sensor, for detection of the temperature of outdoor environment;
Three-temperature sensor, for detection of the temperature of described tube wing type heat absorption evaporation plate core;
The 4th temperature sensor, for detection of vaporized refrigerant temperature in solar energy heating evaporimeter.
CN201320497795.2U 2013-08-15 2013-08-15 Household wall-hung flat plate solar thermal pump water heater Expired - Fee Related CN203454431U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453679A (en) * 2013-08-15 2013-12-18 常州市康舒环境科技有限公司 Household wall-mounted flat solar heat-pump water heater and control method thereof
CN104197516B (en) * 2014-09-12 2016-10-12 山东力诺瑞特新能源有限公司 Based on the solar heat-pump water heater system under VRV pattern
CN106524502A (en) * 2016-12-19 2017-03-22 西安交通大学 Direct-expansion solar-assisted ejector synergistic heat pump hot water system and control method
CN107883593A (en) * 2017-11-09 2018-04-06 内蒙古润泰新能源科技有限公司 Energy storage pool and energy-storage system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453679A (en) * 2013-08-15 2013-12-18 常州市康舒环境科技有限公司 Household wall-mounted flat solar heat-pump water heater and control method thereof
CN103453679B (en) * 2013-08-15 2018-04-20 常州海卡太阳能热泵有限公司 The control method of household wall-mounted flat solar heat-pump water heater
CN104197516B (en) * 2014-09-12 2016-10-12 山东力诺瑞特新能源有限公司 Based on the solar heat-pump water heater system under VRV pattern
CN106524502A (en) * 2016-12-19 2017-03-22 西安交通大学 Direct-expansion solar-assisted ejector synergistic heat pump hot water system and control method
CN106524502B (en) * 2016-12-19 2019-05-07 西安交通大学 The injector synergy heat pump hot-water system and control method of direct-expansion type solar energy auxiliary
CN107883593A (en) * 2017-11-09 2018-04-06 内蒙古润泰新能源科技有限公司 Energy storage pool and energy-storage system

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