CN209706355U - A kind of solar water heating system that no charges for water and electricity are equally shared by all - Google Patents
A kind of solar water heating system that no charges for water and electricity are equally shared by all Download PDFInfo
- Publication number
- CN209706355U CN209706355U CN201920249755.3U CN201920249755U CN209706355U CN 209706355 U CN209706355 U CN 209706355U CN 201920249755 U CN201920249755 U CN 201920249755U CN 209706355 U CN209706355 U CN 209706355U
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- heating
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- heat exchanger
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 132
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 230000005611 electricity Effects 0.000 title claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 72
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
A kind of solar water heating system that no charges for water and electricity are equally shared by all of the utility model, including solar thermal collector group, heating agent delivery trunk, heating agent return header, user's heat exchanger group, solar thermal collection system controller and parallel net type photovoltaic generating system, solar thermal collector group includes solar heat-collection plate, the first temperature sensor, second temperature sensor, expansion drum and heat medium circulation pump group；User's heat exchanger group includes volumetric heat exchanger and auxiliary thermal, and heating coil is provided in volumetric heat exchanger, and two end interfaces of heating coil are connect with heating agent delivery trunk and heating agent return header respectively, to form heating agent circulation loop；The water outlet of volumetric heat exchanger upper end is connect with auxiliary thermal.It will not be generated in the solar water heating system whole year of the utility model and be equally shared by all charges for water and electricity, hot water unit price is low, and system control is simple and manages simplicity, greatly improves the acceptance level of resident and property enterprise, is conducive to the popularization and application of solar water heating system.
Description
Technical field
The utility model relates to a kind of solar water heating system, in particular to a kind of solar water that no charges for water and electricity are equally shared by all
System.
Background technique
Domestic hot-water's energy consumption is one of big energy consumption of house four, and for energy-saving and emission-reduction, China is being widelyd popularize including too at present
Renewable energy application including positive energy hot water, and put into effect many supporting policys.Existing solar water heating system is using too
Sun radiation keeps heating pipeline system temperature to stablize by heating medium for heating to certain temperature, using circulating pump, is assisted by each household band
The positive displacement heat-exchanging water tank of heating equipment supplies resident after the cold water in water tank to be heated to the hot water of water temperature needed for resident.Such
System structure is complicated, needs the component of Electronic control more, the comfort that resident uses is low, and needs to share the electricity charge, property
Enterprise's difficult charge increases management difficulty, and therefore, this kind of universal acceptance level of solar water heating system is not high.
Summary of the invention
The purpose of this utility model be in view of the problems of the existing technology, provide a kind of control of system it is simple, without water power
Expense is equally shared by all, and comfort that resident uses is high, and manages easy solar water heating system, improves connecing for resident and property enterprise
By degree, be conducive to the popularization and application of solar water heating system.
The technical solution for solving above-mentioned technical problem is: a kind of solar water heating system that no charges for water and electricity are equally shared by all, including too
Positive energy heat collector group, heating agent delivery trunk, heating agent return header, solar thermal collection system controller and parallel net type photovoltaic power generation system
System, the solar thermal collector group are connect by solar thermal collection system controller with parallel net type photovoltaic generating system；Further include
It is multiple to be separately positioned on indoor user's heat exchanger group；The solar thermal collector group includes solar heat-collection plate, the first temperature
Sensor, second temperature sensor, expansion drum and heat medium circulation pump group, the heating agent delivery trunk and solar heat-collection plate go out
The connection of mouth end, heating agent return header are connected by the arrival end of heat medium circulation pump group and solar heat-collection plate, and the expansion drum connects
It connects on the pipeline between heating agent return header and heat medium circulation pump group, first temperature sensor is arranged in solar energy heating
At the outlet end of plate, second temperature sensor is arranged at the arrival end of solar heat-collection plate, and first temperature sensor,
Second temperature sensor and heat medium circulation pump group are electrically connected with solar thermal collection system controller respectively；User's heat exchanger
Group includes volumetric heat exchanger and auxiliary thermal, is provided with heating coil, the heating agent entrance of heating coil in volumetric heat exchanger
It is connect respectively with heating agent delivery trunk, the heating agent outlet of heating coil is connect with heating agent return header respectively, thus defeated with heating agent
General pipeline, heating agent return header and solar thermal collector group form heating agent circulation loop out；The lower end of the volumetric heat exchanger
Equipped with the water inlet connecting with running water pipe, the upper end of volumetric heat exchanger is equipped with water outlet, the water outlet and auxiliary thermal
Connection.
The further technical solution of the utility model is: the heating agent exit of the heating coil of the volumetric heat exchanger connects
It is connected to Self-operated temperature control valve, the temperature sensing package of Self-operated temperature control valve is arranged in volumetric heat exchanger；The auxiliary hot charging
Set is constant temp gas water heater or instant electric water heater.
The further technical solution of the utility model is: further including solenoid valve controller, the volumetric heat exchanger adds
The heating agent exit of hot coil is connected with solenoid valve, and third temperature sensor, the third temperature are provided in volumetric heat exchanger
It spends sensor to be electrically connected with the input terminal of solenoid valve controller respectively, solenoid valve is electric with the output end of solenoid valve controller respectively
Property connection.
The further technical solution of the utility model is: the outlet end of the solar heat-collection plate is additionally provided with pressure gauge.
The further technical solution of the utility model is: the heat medium circulation pump group includes that two frequency conversions being arranged in parallel follow
Ring pump, and two frequency variable circulating pumps are electrically connected with solar thermal collection system controller respectively；On the heating agent delivery trunk also
It is connected with for the filling interface of working medium to heating agent circulation loop supplement heating agent.
The further technical solution of the utility model is: the water outlet of the auxiliary thermal and the water inlet of volumetric heat exchanger
It is connected with circulating water pipe between mouthful, is provided with hot water circulating pump on circulating water pipe.
The solar water heating system that a kind of no charges for water and electricity of the utility model are equally shared by all is due to using the above structure, having as follows
The utility model has the advantages that
1. the utility model utilizes solar radiation by heating medium for heating to certain temperature by solar heat-collection plate, and passes through
Heat medium circulation pump group recycles the heating agent after heating in pipeline, and cold water exchanges heat in volumetric heat exchanger with heating coil,
So that the cold water in volumetric heat exchanger supplies resident after being heated to certain temperature, then auxiliary hot charging set in addition is passed through by resident
The hot water for being heated to required water temperature is set, achievees the purpose that supply hot water to resident, and the utility model is sent out by parallel net type photovoltaic
Electric system is to solar thermal collection system controller and other electricity consumption facility powers, so that the solar water heating system of the utility model
It will not be generated in whole year and be equally shared by all charges for water and electricity；
2. the control of self-operated type temperature is arranged by the heating agent exit of the heating coil in volumetric heat exchanger in the utility model
Valve processed reduces the electricity consumption and complexity of the utility model, reduces the photovoltaic cell area of photovoltaic generating system, convenient for control
System, and can effectively prevent the water temperature overtemperature of volumetric heat exchanger and prevent from reversely exchanging heat；
3. the utility model heat medium circulation pump group includes two frequency variable circulating pumps being arranged in parallel, solar thermal collection system control
The real time temperature that device processed is fed back by the first temperature sensor and second temperature sensor, judge solar heat-collection plate outlet end and
The temperature difference of arrival end, and the working condition of two frequency variable circulating pumps is controlled according to the temperature difference, reduce solar water heating system
Electricity consumption improves solar water heating system heat exchange efficiency and heat transfer effect.
In the following, the skill for the solar water heating system that no charges for water and electricity a kind of to the utility model are equally shared by all in conjunction with the accompanying drawings and embodiments
Art feature is further described.
Detailed description of the invention
A kind of Fig. 1: structural schematic diagram for the solar water heating system that no charges for water and electricity are equally shared by all of the utility model；
Fig. 2: the structural schematic diagram of the utility model user's heat exchanger group embodiment one；
Fig. 3: the structural schematic diagram of the utility model user's heat exchanger group embodiment two；
Drawing reference numeral explanation: 1- solar thermal collector group, 2- second temperature sensor, 3- parallel net type photovoltaic generating system,
4- arrival end, 5- solar thermal collection system controller, 6- solar heat-collection plate, the outlet end 7-, the first temperature sensor of 8-, 9- pressure
Power table, the filling interface of 10- working medium, 11- heating agent delivery trunk, 12- user's heat exchanger group, 13- heating agent return header, 14- expansion
Tank, 15- frequency variable circulating pump, 16- heat medium circulation pump group, the auxiliary thermal of 17-, 18- water outlet, 19- volumetric heat exchanger, 20- sense
Thermometer bulb, 21- heating agent entrance, 22- Self-operated temperature control valve, the outlet of 23- heating agent, 24- heating coil, 25- water inlet, 26- are followed
Ring water pipe, 27- hot water circulating pump, 28- solenoid valve, 29- third temperature sensor.
In figure, arrow K be with water flow to；Arrow P is heating agent flow direction.
Specific embodiment
Embodiment one:
As shown in Figure 1 and Figure 2, a kind of solar water heating system that no charges for water and electricity are equally shared by all of the utility model, including solar energy collection
Hot device group 1, heating agent delivery trunk 11, heating agent return header 13, solar thermal collection system controller 5, parallel net type photovoltaic power generation system
System 3 and it is multiple be separately positioned on indoor user's heat exchanger group 12, the solar thermal collector group 1 passes through solar thermal collection system
Controller 5 is connect with parallel net type photovoltaic generating system 3, and user's heat exchanger group 12 passes through heating agent delivery trunk 11 and heating agent respectively
Return header 13 connect to form heating agent circulation loop with solar thermal collector group 1.The present embodiment passes through parallel net type photovoltaic power generation system
The each electrical component power supply united to solar thermal collector group 1, solar thermal collection system controller 5 and the utility model, makes
It obtains to generate in the solar water heating system whole year of the utility model and is equally shared by all the electricity charge.
The solar thermal collector group 1 of the utility model includes solar heat-collection plate 6, the first temperature sensor 8, second temperature
Sensor 2, expansion drum 14 and heat medium circulation pump group 16；The outlet end 7 of the heating agent delivery trunk 11 and solar heat-collection plate 6 connects
It connects, the outlet end 7 of solar heat-collection plate 6 is additionally provided with pressure gauge 9, is also connected on the heating agent delivery trunk 11 for heat
The filling interface 10 of working medium of matchmaker's circulation loop supplement heating agent；The heating agent return header 13 passes through heat medium circulation pump group 16 and the sun
The arrival end 4 of energy collecting plate 6 connects, and the expansion drum 14 is connected between heating agent return header 13 and heat medium circulation pump group 16
On pipeline, first temperature sensor 8 is arranged at the outlet end 7 of solar heat-collection plate 6, and second temperature sensor 2 is arranged
At the arrival end 4 of solar heat-collection plate 6, and first temperature sensor 8, second temperature sensor 2 and heat medium circulation pump
Group 16 is electrically connected with solar thermal collection system controller 5 respectively；The heat medium circulation pump group 16 includes two and is arranged in parallel
Frequency variable circulating pump 15, and two frequency variable circulating pumps 15 are electrically connected with solar thermal collection system controller 5 respectively.
User's heat exchanger group 12 includes volumetric heat exchanger 19 and auxiliary thermal 17, is provided with and adds in volumetric heat exchanger 19
The heating agent entrance 21 of hot coil 24, heating coil 24 is connect with heating agent delivery trunk 11 respectively, the heating agent outlet of heating coil 24
23 connect with heating agent return header 13 respectively, thus with heating agent delivery trunk 11, heating agent return header 13 and solar energy heating
Device group 1 forms heating agent circulation loop.In addition, the heating agent outlet 23 of the heating coil 24 of the volumetric heat exchanger 19 of the utility model
Place is also connected with Self-operated temperature control valve 22, and the temperature sensing package 20 of Self-operated temperature control valve 22 is arranged in volumetric heat exchanger 19
In.
The lower end of the volumetric heat exchanger 19 is equipped with the water inlet 25 connecting with running water pipe, volumetric heat exchanger 19
Upper end is equipped with water outlet 18, and the water outlet 18 is connect with auxiliary thermal 17；In addition, the auxiliary thermal 17 of the utility model goes out
It is connected with circulating water pipe 26 between water end (W.E.) and the water inlet 25 of volumetric heat exchanger 19, is provided with hot water circuit on circulating water pipe 26
Pump 27.In the present embodiment, auxiliary thermal 17 is constant temp gas water heater or instant electric water heater.
The utility model is to utilize the sun by solar heat-collection plate 6 without the solar water heating system that charges for water and electricity are equally shared by all
Radiation by heating medium for heating to certain temperature, and by heat medium circulation pump group 16 make heat up after heating agent followed in pipeline it is bad,
Cold water exchanges heat in volumetric heat exchanger 19 with heating coil 24, so that the cold water in volumetric heat exchanger 19 is heated to certain temperature
Resident is supplied after degree, then is heated to the hot water of required water temperature by auxiliary thermal 17 set in addition by resident.The utility model
Heating agent circulation use temperature difference cycle mode, pass through the outlet end 7 of 8 real-time detection solar heat-collection plate 6 of the first temperature sensor
Heat medium temperature T1,2 real-time detection solar heat-collection plate 6 of second temperature sensor arrival end 4 heat medium temperature T2, and will
T1, T2 feed back to solar thermal collection system controller 5；As 40 °C of T1 > and T1 is greater than T2, while-T2 > 5 ~ 10 °C T1
When, one of frequency variable circulating pump 15 of heat medium circulation pump group 16 starts；As 40 °C of T1 > and T1 is greater than T2, while T1-T2
At > 10 ~ 15 °C, two frequency variable circulating pumps 15 of heat medium circulation pump group 16 all start, and to accelerate following for heating agent bad, raising is changed
The thermal efficiency；As 40 °C of T2 < and when T1 is less than-T2 < 1 ~ 3 °C T2 or T1, heat medium circulation pump group 16 is closed, and heating agent stopping follows
Ring improves heat transfer effect so that heating agent is heated to just start the cycle over heat exchange after certain temperature at solar heat-collection plate 6.
In addition, it is also connected with Self-operated temperature control valve 22 at the heating agent outlet 23 of the heating coil 24 of the utility model,
The set temperature of Self-operated temperature control valve 22 is 50 ~ 75 °C when use, when the water temperature in volumetric heat exchanger 19 constantly rises
When, Self-operated temperature control valve 22 gradually turns down, and when water temperature rises to set temperature, Self-operated temperature control valve 22 closes completely
It closes；The Self-operated temperature control valve 22 of each household is adjusted to reach the mesh of 19 uniform heat exchange of volumetric heat exchanger of whole users
, so that the water temperature in the volumetric heat exchanger 19 at each family is consistent.By the way that Self-operated temperature control valve 22 is arranged, this reality is reduced
With the electricity consumption and complexity of novel solar water heating system, the photovoltaic cell area of photovoltaic generating system is reduced, convenient for control
System, and can effectively prevent the water temperature overtemperature of volumetric heat exchanger 19 and prevent from reversely exchanging heat.
Embodiment two:
It is substituted as shown in figure 3, common solenoid valve 28 also can be used in the Self-operated temperature control valve 22 of the utility model, In
Increase a solenoid valve controller in solar water heating system, and also installs one in the volumetric heat exchanger 19 at each family respectively
Third temperature sensor 29, all third temperature sensors 29 are connect with the input terminal of solenoid valve controller, all electricity
Magnet valve 28 is connect with the output end of solenoid valve controller, and the third temperature sensor 29 at each family exchanges heat the positive displacement of the user
The water temperature of device 19 feeds back to solenoid valve controller, and when water temperature reaches setting value, solenoid valve controller controls the electricity of corresponding user
Magnet valve 28 is closed, so that the volumetric heat exchanger 19 of the user stops heat exchange, the positive displacement of the whole users of adjusting is reached with this
The purpose of 19 uniform heat exchange of heat exchanger, so that the water temperature in the volumetric heat exchanger 19 at each family is consistent.
In example 1 and example 2, solar thermal collector group 1, solar thermal collection system controller 5 and this reality
Pass through parallel net type photovoltaic generating system with novel each electrical component to power, parallel net type photovoltaic generating system is existing skill
Art does not elaborate herein.In the present invention, when the generated energy of parallel net type photovoltaic generating system is enough to provide to this reality
With novel each electrical component in use, extra electricity is transported to the municipal power grid with the grid-connected connection of photovoltaic generating system
In, from municipal power grid unified allocation of resources to customer power supply；When the generated energy of parallel net type photovoltaic generating system is lower than the utility model
When the electricity consumption of each electrical component, powered from the municipal power grid with the grid-connected connection of photovoltaic generating system to the utility model, with
Ensure the normal operation of system.Parallel net type photovoltaic generating system whole year generated energy is not less than solar thermal collector group 1, solar energy collection
The Urban Annual Electrical Power Consumption amount of each electrical component of hot systems controller 5 and the utility model.
Above embodiments are only the preferred embodiment of the utility model, and the structure of the utility model is not limited to above-mentioned implementation
The form enumerated of example, any modification made within the spirit and principle of the present invention, equivalent replacement etc. should all include
It is within the protection scope of the utility model.
Claims (8)
1. a kind of solar water heating system that no charges for water and electricity are equally shared by all, including solar thermal collector group (1), heating agent delivery trunk
(11), heating agent return header (13), solar thermal collection system controller (5) and parallel net type photovoltaic generating system (3), the sun
Energy heat collector group (1) is connect by solar thermal collection system controller (5) with parallel net type photovoltaic generating system (3)；Its feature exists
In: it further include multiple being separately positioned on indoor user's heat exchanger group (12)；The solar thermal collector group (1) includes the sun
Energy collecting plate (6), the first temperature sensor (8), second temperature sensor (2), expansion drum (14) and heat medium circulation pump group (16),
The heating agent delivery trunk (11) connect with the outlet end (7) of solar heat-collection plate (6), and heating agent return header (13) passes through heating agent
Circulation pump group (16) is connect with the arrival end (4) of solar heat-collection plate (6), and the expansion drum (14) is connected to heating agent return header
(13) on the pipeline between heat medium circulation pump group (16), first temperature sensor (8) is arranged in solar heat-collection plate (6)
Outlet end (7) at, second temperature sensor (2) is arranged at the arrival end (4) of solar heat-collection plate (6), and described first
Temperature sensor (8), second temperature sensor (2) and heat medium circulation pump group (16) respectively with solar thermal collection system controller
(5) it is electrically connected；User's heat exchanger group (12) includes volumetric heat exchanger (19) and auxiliary thermal (17), positive displacement heat exchange
It is provided with heating coil (24) in device (19), the heating agent entrance (21) of heating coil (24) connects with heating agent delivery trunk (11) respectively
It connects, the heating agent outlet (23) of heating coil (24) is connect with heating agent return header (13) respectively, thus with heating agent delivery trunk
(11), heating agent return header (13) and solar thermal collector group (1) form heating agent circulation loop；The volumetric heat exchanger
(19) lower end is equipped with the water inlet (25) connecting with running water pipe, and the upper end of volumetric heat exchanger (19) is equipped with water outlet
(18), the water outlet (18) connect with auxiliary thermal (17).
2. the solar water heating system that a kind of no charges for water and electricity according to claim 1 are equally shared by all, it is characterised in that: the volume
Self-operated temperature control valve (22), self-operated type temperature are connected at the heating agent outlet (23) of the heating coil (24) of formula heat exchanger (19)
The temperature sensing package (20) for spending control valve (22) is arranged in volumetric heat exchanger (19).
3. the solar water heating system that a kind of no charges for water and electricity according to claim 1 are equally shared by all, it is characterised in that: further include electricity
Magnetic valve controller, the heating agent of the heating coil (24) of the volumetric heat exchanger (19) export and are connected with solenoid valve at (23)
(28), is provided with third temperature sensor (29) in volumetric heat exchanger (19), the third temperature sensor (29) respectively with
The input terminal of solenoid valve controller is electrically connected, and solenoid valve (28) is electrically connected with the output end of solenoid valve controller respectively.
4. the solar water heating system that a kind of no charges for water and electricity according to claim 1 are equally shared by all, it is characterised in that: the auxiliary heat
Device (17) is constant temp gas water heater or instant electric water heater.
5. the solar water heating system that a kind of no charges for water and electricity according to claim 1 are equally shared by all, it is characterised in that: the sun
The outlet end (7) of energy collecting plate (6) is additionally provided with pressure gauge (9).
6. the solar water heating system that a kind of no charges for water and electricity according to claim 1 are equally shared by all, it is characterised in that: the heating agent
Circulation pump group (16) includes two frequency variable circulating pumps being arranged in parallel (15), and two frequency variable circulating pumps (15) respectively with solar energy
Collecting system controller (5) is electrically connected.
7. the solar water heating system that a kind of no charges for water and electricity according to claim 1 are equally shared by all, it is characterised in that: the heating agent
It is also connected on delivery trunk (11) for the filling interface of working medium (10) to heating agent circulation loop supplement heating agent.
8. the solar water heating system that a kind of no charges for water and electricity according to claim 1 are equally shared by all, it is characterised in that: the auxiliary heat
Circulating water pipe (26), circulating water pipe are connected between the water outlet of device (17) and the water inlet (25) of volumetric heat exchanger (19)
(26) hot water circulating pump (27) are provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249755.3U CN209706355U (en) | 2019-02-27 | 2019-02-27 | A kind of solar water heating system that no charges for water and electricity are equally shared by all |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249755.3U CN209706355U (en) | 2019-02-27 | 2019-02-27 | A kind of solar water heating system that no charges for water and electricity are equally shared by all |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209706355U true CN209706355U (en) | 2019-11-29 |
Family
ID=68642723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920249755.3U Expired - Fee Related CN209706355U (en) | 2019-02-27 | 2019-02-27 | A kind of solar water heating system that no charges for water and electricity are equally shared by all |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209706355U (en) |
-
2019
- 2019-02-27 CN CN201920249755.3U patent/CN209706355U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20191129 |