CN115854563A - Photovoltaic photo-thermal heat storage double-heating system - Google Patents
Photovoltaic photo-thermal heat storage double-heating system Download PDFInfo
- Publication number
- CN115854563A CN115854563A CN202211709237.8A CN202211709237A CN115854563A CN 115854563 A CN115854563 A CN 115854563A CN 202211709237 A CN202211709237 A CN 202211709237A CN 115854563 A CN115854563 A CN 115854563A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- heat
- heat storage
- photovoltaic
- solar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to a photovoltaic photo-thermal heat storage double-heating system, which comprises: the solar-thermal heat storage system comprises a photo-thermal heat storage unit, a photovoltaic heat storage unit, a heat dissipation unit and a control unit; the photo-thermal heat storage unit is used for storing heat energy converted from solar radiation; the photovoltaic heat storage unit is used for consuming electric energy converted from the solar radiation or commercial power and storing the electric energy or the heat energy converted from the commercial power; the heat dissipation unit is used for diffusing the heat energy stored in the photo-thermal heat storage unit and the heat energy stored in the photovoltaic heat storage unit to an indoor environment; the control unit is used for switching the operation mode of the dual-heating system; the photo-thermal heat storage unit and the photovoltaic heat storage unit are connected with the heat dissipation unit and the control unit. According to the invention, by designing the double-water-tank system, heating and heat storage are alternately performed, solar energy is fully utilized, and high-reliability heating is realized.
Description
Technical Field
The invention relates to the technical field of solar heating, in particular to a photovoltaic photo-thermal heat storage dual-heating system.
Background
A common solar heating system is a technology for collecting solar radiation and converting the solar radiation into heat energy for heating by using a heat collector. The system uses liquid as heat transfer medium, uses water as heat storage medium, and the heat is transferred to indoor for heating and domestic water by the heat dissipation component.
The heat absorption process of the heat collector is that solar radiation penetrates through an outer pipe of the vacuum pipe, is absorbed by a coating film of the heat collector and then is transmitted to water in the pipe along the wall of the inner pipe. The temperature of the water in the pipe rises after the heat absorption, and rises along with the reduction of specific gravity, so that an upward power is formed, and a thermosiphon system is formed. The hot water continuously moves upwards and is stored at the upper part of the water storage tank, meanwhile, the water with lower temperature is continuously supplemented along the other side of the pipe to be circularly reciprocated, and finally, the whole tank of water is raised to a certain temperature.
However, solar energy is very strong in timeliness and sufficient in daytime, the output of the heat collector is very large, and the heat collector does not work at night, but in the heating process, heating is needed in both daytime and night. Therefore, in order to compensate for the lack of sunlight utilization at night, a supplemental heat source is required. For example, many electric heating devices are adopted, and the matching mode ensures the heating reliability to a certain extent, but the heating cost is higher.
Disclosure of Invention
The invention aims to provide a photovoltaic photo-thermal heat storage double-heating system, which is characterized in that a double-water tank system is designed, heating and heat storage are alternately performed, solar energy is fully utilized, and high-reliability heating is realized.
In order to achieve the purpose, the invention provides the following scheme:
a photovoltaic light and heat thermal storage's two heating system includes:
the solar-thermal heat storage system comprises a photo-thermal heat storage unit, a photovoltaic heat storage unit, a heat dissipation unit and a control unit;
the photo-thermal heat storage unit is used for storing heat energy converted from solar radiation;
the photovoltaic heat storage unit is used for consuming electric energy converted from the solar radiation or commercial power and storing the electric energy or the heat energy converted from the commercial power;
the heat dissipation unit is used for diffusing the heat energy stored in the photo-thermal heat storage unit and the heat energy stored in the photovoltaic heat storage unit to an indoor environment;
the control unit is used for switching the operation mode of the dual-heating system;
the photo-thermal heat storage unit and the photovoltaic heat storage unit are connected with the heat dissipation unit and the control unit.
Preferably, the photothermal heat storage unit includes:
the solar energy heat collecting device, the electric tracing band and the first pipeline;
the solar heat collection device is used for collecting the solar radiation and converting the solar radiation into heat energy; the electric tracing band is used for carrying out pipeline heat preservation on an outdoor exposed section of the first pipeline; the first pipeline is used for transmitting a heat storage medium;
the water outlet of the solar heat collection device is connected with one end of the first pipeline, and the electric tracing band is arranged at the outdoor exposed section of the first pipeline.
Preferably, the photothermal heat storage unit further includes:
the solar heat collecting device comprises a solar heat collecting device, a second pipeline, a third pipeline and a fourth pipeline;
the solar heat collection device is used for storing heat generated by the solar heat collection device; the second pipeline, the third pipeline and the fourth pipeline are used for transmitting the heat storage medium;
the water inlet of the solar heat collection device is connected with the other end of the first pipeline, the water outlet of the solar heat collection device is connected with one end of the second pipeline, the water inlet of the solar heat collection device is connected with one end of the third pipeline, and the second pipeline is connected with the third pipeline through the fourth pipeline;
the outdoor exposed section of the third pipeline is also provided with the electric tracing band.
Preferably, a first circulating pump, a first check valve and a first regulating valve are sequentially arranged in the third pipeline according to the flowing direction of the heat storage medium, the first circulating pump is used for ensuring that the heat storage medium circularly flows in the pipeline, a first electromagnetic valve is arranged in the fourth pipeline, the solar heat collection device comprises a first T/P safety valve and a first ball float valve, the first ball float valve is used for automatically supplementing water, the first T/P safety valve is used for ensuring that the internal pressure of the solar heat collection device does not exceed the limit, and a first temperature sensor is arranged at a water outlet of the solar heat collection device and used for collecting and transmitting first heat storage parameters.
Preferably, the photovoltaic heat storage unit includes:
the system comprises a solar cell panel, a photovoltaic grid-connected inverter, a distribution box and an auxiliary heater;
the solar panel is used for collecting the solar radiation, converting the solar radiation into electric energy and supplying the electric energy to the auxiliary heater; the photovoltaic grid-connected inverter is used for converting direct current into alternating current to be supplied to an electric boiler and grid-connected; the distribution box is used for realizing a grid-connected function by being connected with a municipal power grid; the auxiliary heater is used for consuming the electric quantity generated by the solar panel or the electric energy generated by the commercial power grid to heat the heat storage medium;
the solar cell panel, the photovoltaic grid-connected inverter, the distribution box and the auxiliary heater are sequentially connected.
Preferably, the photovoltaic heat storage unit further includes:
the photovoltaic heat storage device comprises a photovoltaic heat storage water device, a fifth pipeline, a sixth pipeline, a seventh pipeline and an eighth pipeline;
the photovoltaic heat storage water device is used for storing heat generated by the auxiliary heater; the fifth pipeline, the sixth pipeline, the seventh pipeline and the eighth pipeline are used for transmitting the heat storage medium;
the water inlet of the auxiliary heater is connected with one end of the seventh pipeline, the water outlet of the auxiliary heater is connected with one end of the fifth pipeline, the other end of the fifth pipeline is connected with the water inlet of the photovoltaic heat storage water device, the water outlet of the photovoltaic heat storage water device is connected with one end of the sixth pipeline, and the sixth pipeline is connected with the seventh pipeline through the eighth pipeline.
Preferably, the seventh pipeline is sequentially provided with a second circulating pump, a second check valve and a second regulating valve according to the flowing direction of the heat storage medium, the second circulating pump is used for ensuring that the heat storage medium circularly flows in the pipeline, the eighth pipeline is provided with a second electromagnetic valve, the photovoltaic heat storage water device is provided with a second T/P safety valve and a second ball float valve, the second ball float valve is used for automatically supplementing water, the second T/P safety valve is used for ensuring that the internal pressure of the photovoltaic heat storage water device does not exceed the limit, a water outlet of the solar heat collection device is provided with a second temperature sensor used for collecting and transmitting second heat storage parameters, and a heat exchange coil is further arranged in the solar heat collection device and used for providing domestic hot water for residents.
Preferably, the heat dissipating unit includes:
the heating system comprises a first electromagnetic three-way valve, a second electromagnetic three-way valve, a heating water inlet pipe, a heating water return pipe and radiating fins;
the first electromagnetic three-way valve and the second electromagnetic three-way valve are used for connecting pipelines and can change the flow direction of a heat storage medium; the heating water inlet pipe and the heating water return pipe are used for transmitting the heat storage medium; the radiating fin is used for diffusing the heat generated by the solar heat collecting device and the heat generated by the photovoltaic heat storage water device to an indoor environment;
the other end of the second pipeline, the other end of the sixth pipeline and one end of the heating water inlet pipe are all connected with the first electromagnetic three-way valve, the other end of the third pipeline, the other end of the seventh pipeline and one end of the heating water return pipe are all connected with the second electromagnetic three-way valve, and the other end of the heating water inlet pipe and the other end of the heating water return pipe are all connected with the radiating fins.
Preferably, the control unit includes: a control device;
the control device is used for receiving the first heat storage parameter, the second heat storage parameter, the light intensity sensor data and the indoor temperature sensor data, controlling the electromagnetic valves, the auxiliary heater, the circulating pump and the electric tracing band to work in a coordinated mode, and completing the switching of the operation modes;
the control device is respectively connected with the first temperature sensor, the second temperature sensor, the light intensity sensor and the indoor temperature sensor.
Preferably, the operation modes include:
a self-circulation mode, a heat collector heating mode and a photovoltaic-auxiliary heater heating mode;
wherein the self-loop mode comprises: the system comprises an auxiliary heater-photovoltaic heat storage water device self-circulation sub-mode and a solar heat collection device-solar heat collection device self-circulation sub-mode;
the auxiliary heater-photovoltaic heat storage water device self-circulation sub-mode circulation loop is as follows: the auxiliary heater-the photovoltaic heat storage water device-the second electromagnetic valve-the second circulating pump-the second check valve-the second regulating valve-the auxiliary heater;
the solar heat collection device-solar heat collection device self-circulation sub-mode circulation loop is as follows: said solar thermal collector-said first solenoid valve-said first circulation pump-said first check valve-said first regulating valve-said solar thermal collector;
the heating loop of the heat collector heating mode is as follows: the solar thermal collector-the first electromagnetic three-way valve-the heat sink-the second electromagnetic three-way valve-the first circulation pump-the first check valve-the first regulating valve-the solar thermal collector;
the heating loop of the photovoltaic-auxiliary heater heating mode is as follows: the auxiliary heater-the photovoltaic heat storage water device-the first electromagnetic three-way valve-the heat sink-the second electromagnetic three-way valve-the second circulation pump-the second check valve-the second regulator valve-the auxiliary heater.
The invention has the beneficial effects that:
according to the invention, the heat exchange coil is arranged in the heat storage water tank, and the fluid in the heat storage water tank is used for heating the liquid in the coil and heating the liquid, so that the heat storage water tank can be used as a domestic hot water source;
the invention designs a double-water tank system, and the heating and heat storage are alternately carried out, so that the solar energy is fully utilized, and the high-reliability heating is realized;
the auxiliary heater is designed and provided with a photovoltaic power generation system, and the generated energy of the solar cell panel is utilized to drive the auxiliary heater to operate and store heat for the photovoltaic heat storage water tank;
the photovoltaic power generation system provided by the invention has a grid-connected power generation function, and can send generated energy to a power grid in non-heating seasons, earn electric charge and recover investment cost as early as possible.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a photovoltaic photo-thermal heat storage dual heating system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a dual system self-loop according to an embodiment of the present invention;
FIG. 3 is a schematic view of photothermal heating according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of photovoltaic heating according to an embodiment of the present invention;
the solar energy heat collector comprises a solar energy heat collector 1, a photo-thermal heat storage water tank 2, a first electromagnetic three-way valve 3, a second electromagnetic three-way valve 4, a first circulating pump 5, a first check valve 6, a regulating valve 7, a solar cell panel 8, a photovoltaic grid-connected inverter 9, an auxiliary heater 10, a photovoltaic heat storage water tank 11, a second circulating pump 12, a second check valve 13, a second regulating valve 14, a distribution box 15, a first T/P safety valve 16, a first ball float valve 17, a first electromagnetic valve 18, a second electromagnetic valve 19, a radiating fin 20, a first temperature sensor 21, a second temperature sensor 22, a first pipeline 23, a second pipeline 24, a third pipeline 25, a fourth pipeline 26, a fifth pipeline 27, a sixth pipeline 28, a seventh pipeline 29, an eighth pipeline 30, a heating water inlet pipe 31, a heating water return pipe 32, a second T/P safety valve 33, a second ball float valve 34, a controller 35, a heat exchange coil pipe and an electric tracing band 37.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A photovoltaic photo-thermal heat storage dual-heating system comprises:
the solar-thermal heat storage system comprises a photo-thermal heat storage unit, a photovoltaic heat storage unit, a heat dissipation unit and a control unit;
the photo-thermal heat storage unit is used for storing heat energy converted from solar radiation;
the photovoltaic heat storage unit is used for consuming electric energy converted from the solar radiation or commercial power and storing the electric energy or the heat energy converted from the commercial power;
the heat dissipation unit is used for diffusing the heat energy stored in the photo-thermal heat storage unit and the heat energy stored in the photovoltaic heat storage unit to an indoor environment;
the control unit is used for switching the operation mode of the dual-heating system;
the photo-thermal heat storage unit and the photovoltaic heat storage unit are connected with the heat dissipation unit and the control unit.
Further, the photothermal heat storage unit includes:
the solar energy heat collecting device, the electric tracing band and the first pipeline;
the solar heat collection device is used for collecting the solar radiation and converting the solar radiation into heat energy; the electric tracing band is used for carrying out pipeline heat preservation on an outdoor exposed section of the first pipeline; the first pipeline is used for transmitting a heat storage medium;
the water outlet of the solar heat collection device is connected with one end of the first pipeline, and the electric tracing band is arranged at the outdoor exposed section of the first pipeline.
Further, the photothermal heat storage unit further includes:
the solar heat collecting device comprises a solar heat collecting device, a second pipeline, a third pipeline and a fourth pipeline;
the solar heat collection device is used for storing heat generated by the solar heat collection device; the second pipeline, the third pipeline and the fourth pipeline are used for transmitting the heat storage medium;
the water inlet of the solar heat collection device is connected with the other end of the first pipeline, the water outlet of the solar heat collection device is connected with one end of the second pipeline, the water inlet of the solar heat collection device is connected with one end of the third pipeline, and the second pipeline is connected with the third pipeline through the fourth pipeline;
the outdoor exposed section of the third pipeline is also provided with the electric tracing band.
Furthermore, a first circulating pump, a first check valve and a first regulating valve are sequentially arranged in the third pipeline according to the flowing direction of the heat storage medium, the first circulating pump is used for ensuring that the heat storage medium circularly flows in the pipeline, a first electromagnetic valve is arranged in the fourth pipeline, a first T/P safety valve and a first ball float valve are arranged in the solar heat collection device, the first ball float valve is used for automatically supplementing water, the first T/P safety valve is used for ensuring that the internal pressure of the solar heat collection device does not exceed the limit, and a first temperature sensor is arranged at a water outlet of the solar heat collection device and used for collecting and transmitting first heat storage parameters.
Further, the photovoltaic heat storage unit includes:
the system comprises a solar cell panel, a photovoltaic grid-connected inverter, a distribution box and an auxiliary heater;
the solar panel is used for collecting the solar radiation, converting the solar radiation into electric energy and supplying the electric energy to the auxiliary heater; the photovoltaic grid-connected inverter is used for converting direct current into alternating current to be supplied to an electric boiler and grid-connected; the distribution box is used for realizing a grid-connected function by being connected with a municipal power grid; the auxiliary heater is used for consuming the electric quantity generated by the solar panel or consuming the electric energy generated by the commercial power grid to heat the heat storage medium;
the solar cell panel, the photovoltaic grid-connected inverter, the distribution box and the auxiliary heater are sequentially connected.
Further, the photovoltaic heat storage unit further includes:
the photovoltaic heat storage device comprises a photovoltaic heat storage water device, a fifth pipeline, a sixth pipeline, a seventh pipeline and an eighth pipeline;
the photovoltaic heat storage water device is used for storing heat generated by the auxiliary heater; the fifth pipeline, the sixth pipeline, the seventh pipeline and the eighth pipeline are used for transmitting the heat storage medium;
the water inlet of the auxiliary heater is connected with one end of the seventh pipeline, the water outlet of the auxiliary heater is connected with one end of the fifth pipeline, the other end of the fifth pipeline is connected with the water inlet of the photovoltaic heat storage water device, the water outlet of the photovoltaic heat storage water device is connected with one end of the sixth pipeline, and the sixth pipeline is connected with the seventh pipeline through the eighth pipeline.
Furthermore, the seventh pipeline is sequentially provided with a second circulating pump, a second check valve and a second regulating valve according to the flowing direction of the heat storage medium, the second circulating pump is used for ensuring that the heat storage medium circularly flows in the pipeline, the eighth pipeline is provided with a second electromagnetic valve, the photovoltaic water storage and heating device is provided with a second T/P safety valve and a second ball float valve, the second ball float valve is used for automatically supplementing water, the second T/P safety valve is used for ensuring that the internal pressure of the photovoltaic water storage and heating device does not exceed the limit, a water outlet of the solar heat collection device is provided with a second temperature sensor which is used for collecting and transmitting second heat storage parameters, and a heat exchange coil is further arranged in the solar heat collection device and used for providing domestic hot water for residents.
Further, the heat dissipating unit includes:
the heating system comprises a first electromagnetic three-way valve, a second electromagnetic three-way valve, a heating water inlet pipe, a heating water return pipe and radiating fins;
the first electromagnetic three-way valve and the second electromagnetic three-way valve are used for connecting pipelines and can change the flow direction of a heat storage medium; the heating water inlet pipe and the heating water return pipe are used for transmitting the heat storage medium; the radiating fin is used for diffusing the heat generated by the solar heat collecting device and the heat generated by the photovoltaic heat storage water device to an indoor environment;
the other end of the second pipeline, the other end of the sixth pipeline and one end of the heating water inlet pipe are all connected with the first electromagnetic three-way valve, the other end of the third pipeline, the other end of the seventh pipeline and one end of the heating water return pipe are all connected with the second electromagnetic three-way valve, and the other end of the heating water inlet pipe and the other end of the heating water return pipe are all connected with the radiating fins.
Further, the control unit includes: a control device;
the control device is used for receiving the first heat storage parameter, the second heat storage parameter, the light intensity sensor data and the indoor temperature sensor data, controlling the electromagnetic valves, the auxiliary heater, the circulating pump and the electric tracing band to work in a coordinated mode, and completing the switching of the operation modes;
the control device is respectively connected with the first temperature sensor, the second temperature sensor, the light intensity sensor and the indoor temperature sensor.
Further, the operation mode includes:
a self-circulation mode, a heat collector heating mode and a photovoltaic-auxiliary heater heating mode;
wherein the self-loop mode comprises: the system comprises an auxiliary heater-photovoltaic heat storage water device self-circulation sub-mode and a solar heat collection device-solar heat collection device self-circulation sub-mode;
the auxiliary heater-photovoltaic heat storage water device self-circulation sub-mode circulation loop is as follows: the auxiliary heater-the photovoltaic heat storage water device-the second solenoid valve-the second circulation pump-the second check valve-the second regulator valve-the auxiliary heater;
the solar heat collection device-solar heat collection device self-circulation sub-mode circulation loop is as follows: -said solar thermal collector-said first solenoid valve-said first circulation pump-said first check valve-said first regulating valve-said solar thermal collector;
the heating loop of the heat collector heating mode is as follows: the solar thermal collector-the first electromagnetic three-way valve-the heat sink-the second electromagnetic three-way valve-the first circulation pump-the first check valve-the first regulating valve-the solar thermal collector;
the heating loop of the photovoltaic-auxiliary heater heating mode is as follows: the auxiliary heater-the photovoltaic heat storage water device-the first electromagnetic three-way valve-the heat sink-the second electromagnetic three-way valve-the second circulation pump-the second check valve-the second regulator valve-the auxiliary heater.
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, a photovoltaic photo-thermal heat storage dual heating system includes:
the solar energy heat collector, the two expansion heat storage water tanks, the monocrystalline silicon solar panel, the photovoltaic grid-connected inverter, the valves, the connecting pipeline, the auxiliary heater, the controller, the heating water inlet pipe and the heating water return pipe;
the solar heat collector 1 is used for collecting solar radiation and converting the solar radiation into heat energy; the photo-thermal heat storage water tank 2 is used for storing heat generated by the heat collector; the photovoltaic heat storage water tank 11 is used for storing heat generated by the auxiliary heater; a heat sink 20 for diffusing the heat collected by the heat collector to the indoor environment; the solar cell panel 8 is used for collecting solar radiation, converting the solar radiation into electric energy and supplying the electric energy to the auxiliary heater; the photovoltaic grid-connected inverter 9 is used for converting direct current into alternating current to be supplied to an electric boiler and grid connection; the auxiliary heater 10 is used for consuming electric quantity generated by the solar photovoltaic panel or consuming fluid in the commercial power heating water tank; a circulation pump 5 and a circulation pump 12 for circulating a driving fluid in the pipe; and a controller 35 for controlling the switching of the operation mode of the whole system.
The controller is connected with the auxiliary heater, the first circulating pump, the second circulating pump, the first electromagnetic three-way valve, the second electromagnetic three-way valve, the first electromagnetic valve and the second electromagnetic valve respectively. The water outlet of the solar thermal collector is connected with the photo-thermal heat storage water tank through a first pipeline, the water outlet of the photo-thermal heat storage water tank is connected with the first three-way valve through a second pipeline, the second three-way valve is connected with the water inlet of the solar thermal collector through a third pipeline, and the second pipeline is connected with the third pipeline through a fourth pipeline; the solar cell panel is connected with the photovoltaic grid-connected inverter through a cable, the photovoltaic grid-connected inverter is connected with the distribution box through a cable, the distribution box is connected with the auxiliary heater through a cable, the auxiliary heater is connected with the photovoltaic heat storage water tank water inlet through a fifth pipeline, the photovoltaic heat storage water tank water outlet is connected with the first three-way valve through a sixth pipeline, the auxiliary heater water inlet is connected with the second three-way valve through a seventh pipeline, and the sixth pipeline is connected with the seventh pipeline through an eighth pipeline.
Further, the solar heat collector is an all-glass vacuum tube type solar heat collector.
Further, the auxiliary heater is an electric boiler. The electric boiler has a staged heating function according to the output condition of the solar photovoltaic panel, and is in a standby state when the power generation power of the solar photovoltaic panel is lower than the first power of the electric boiler set by the controller; when the power generation power of the solar photovoltaic panel is higher than the first power of the electric boiler set by the controller and lower than the second power of the electric boiler, the electric boiler operates at the first power; when the power generation power of the solar photovoltaic panel is higher than the second power of the electric boiler set by the controller and lower than the third power of the electric boiler, the electric boiler operates at the second power; and when the power generation power of the solar photovoltaic panel is higher than the third power of the electric boiler set by the controller, the electric boiler operates at the third power.
Further, the controller controls the electromagnetic valves, the auxiliary heater, the circulating pump and the electric tracing band to work in a coordinated mode.
Furthermore, light and heat accumulation water tank, photovoltaic heat accumulation water tank are provided with ball-cock assembly, T/P relief valve respectively, be provided with heat exchange coil pipe in the photovoltaic heat accumulation water tank, can provide life hot water for the resident.
Furthermore, the outer sides of the photo-thermal heat storage water tank and the photovoltaic heat storage water tank are coated with heat insulation layers.
Furthermore, a first electromagnetic valve is arranged on the fourth pipeline, and a second electromagnetic valve is arranged on the eighth pipeline.
Furthermore, a first circulating pump, a first check valve and a first regulating valve are sequentially arranged on the third pipeline according to the flowing direction of the heat storage medium, and a second circulating pump, a second check valve and a second regulating valve are sequentially arranged on the seventh pipeline according to the flowing direction of the heat storage medium.
Furthermore, photo-thermal heat storage water tank, photovoltaic heat storage water tank delivery port department are provided with first temperature sensor, second temperature sensor respectively to can transmit the acquisition parameter for the controller through wireless transmission.
Furthermore, the photo-thermal heat storage water tank and the photovoltaic heat storage water tank are respectively provided with a ball float valve and a T/P safety valve, the ball float valve is used for automatically supplementing water, and the T/P safety valve is used for ensuring that the internal pressure of the system does not exceed the limit.
Furthermore, the photovoltaic grid-connected inverter can be connected with the mains supply through the distribution box, so that the grid-connected function is realized.
Further, the heat storage medium in the system is water.
Furthermore, the controller controls the electromagnetic valves, the auxiliary heater, the circulating pump and the electric tracing band to work in a coordinated manner.
The system controls the electromagnetic valves, the auxiliary heater and the circulating pump to work in a coordinated way by the controller, and realizes the following three operation modes:
self-circulation mode: the solar water heater comprises an auxiliary heater, a photovoltaic heat storage water tank self-circulation mode and a solar heat collector, a photo-thermal heat storage water tank self-circulation mode as shown in figure 2, and aims to store heat for water circulation in the water tank.
The heat collector heating mode: the heating loop is a solar heat collector, a photo-thermal heat storage water tank, a first electromagnetic three-way valve, a cooling fin, a second electromagnetic three-way valve, a first circulating pump, a first check valve, a first regulating valve and a solar heat collector as shown in figure 3.
Photovoltaic-auxiliary heater heating mode: the heating loop is an auxiliary heater, a photovoltaic heat storage water tank, a first electromagnetic three-way valve, a radiating fin, a second electromagnetic three-way valve, a second circulating pump, a second check valve, a second regulating valve and an auxiliary heater, and is shown in figure 4.
The operation mode can realize full-day solar heating, does not consume or consumes less commercial power, has far lower operation cost than centralized heating or commercial power heating, effectively saves the heating expenditure of users, and realizes energy conservation and emission reduction.
Referring to fig. 1, in a heating season, in a sunny day, a solar thermal collector 1 stores heat to a photo-thermal heat storage water tank 2, meanwhile, a solar panel 8 absorbs solar energy to generate electricity, an auxiliary heater 10 is driven by a photovoltaic grid-connected inverter 9 to boil water, and the heat is stored in a photovoltaic heat storage water tank 11; when the water temperature in the photo-thermal heat storage water tank 2 rises to the specified heating temperature, the controller automatically opens the first circulating pump 5, drives the heat storage medium to flow through the first electromagnetic three-way valve 3, the radiating fin 20 and the second electromagnetic three-way valve 4, and performs indoor heating circulation. At this time, the first electromagnetic valve 18 is in a closed state, the second electromagnetic valve 19 is in an open state, and the second circulating pump 12 drives the heat storage medium to perform self-circulation of the electric boiler 10 and the photovoltaic heat storage water tank 11. When the water temperature of the photo-thermal heat storage water tank 2 is lower than the designated temperature, the controller automatically monitors the water temperature of the photovoltaic heat storage water tank 11, if the water temperature reaches the designated temperature, the controller controls the first electromagnetic valve 18 to be automatically opened, and the heat storage medium of the photo-thermal heating system is self-circulated through the fourth pipeline; the second electromagnetic valve 19 is automatically turned off, the photovoltaic heat storage water tank 11 bears the heating duty, and the heat storage medium is heated through the first electromagnetic three-way valve, the radiating fin, the second electromagnetic three-way valve, the electric boiler and the like; when the water temperatures of the two water tanks are lower than the designated temperature, the controller controls the electric boiler to automatically start, and the electric boiler is driven by the commercial power to heat the heat storage medium so as to perform indoor heating work.
When the indoor temperature reaches the set temperature, the whole system enters a self-circulation mode, the two electromagnetic valves are both in an open state, and the heat storage medium in the radiating fin is static; when the indoor temperature is lower than the set temperature by 2 ℃, the system is restarted. The water tank of the system is provided with a ball float valve, so that the system has an automatic water replenishing function, and when the water level in any one of the two water tanks is lower than 80%, water can be automatically replenished into the water tank.
The controller has the function of controlling the electric tracing band to carry out pipeline heat preservation, starts the pipeline heat preservation when the photothermal heating system stops circulating and the temperature in the pipeline reaches zero, and the electric tracing band is closed after the photothermal heating system starts circulating.
In non-heating seasons, the solar photovoltaic panel power generation can be incorporated into the power grid through the photovoltaic grid-connected inverter 9, and the cost recovery is realized through grid-connected power generation.
The invention is an open non-pressure-bearing system, and has lower system operation pressure and high safety.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The utility model provides a photovoltaic light and heat thermal storage's two heating systems which characterized in that includes:
the solar-thermal heat storage system comprises a photo-thermal heat storage unit, a photovoltaic heat storage unit, a heat dissipation unit and a control unit;
the photo-thermal heat storage unit is used for storing heat energy converted from solar radiation;
the photovoltaic heat storage unit is used for consuming electric energy converted from the solar radiation or commercial power and storing the electric energy or the heat energy converted from the commercial power;
the heat dissipation unit is used for diffusing the heat energy stored in the photo-thermal heat storage unit and the heat energy stored in the photovoltaic heat storage unit to an indoor environment;
the control unit is used for switching the operation mode of the dual-heating system;
the photo-thermal heat storage unit and the photovoltaic heat storage unit are connected with the heat dissipation unit and the control unit.
2. The photovoltaic photo-thermal storage dual heating system according to claim 1, wherein the photo-thermal storage unit comprises:
the solar energy heat collecting device, the electric tracing band and the first pipeline;
the solar heat collection device is used for collecting the solar radiation and converting the solar radiation into heat energy; the electric tracing band is used for carrying out pipeline heat preservation on an outdoor exposed section of the first pipeline; the first pipeline is used for transmitting a heat storage medium;
the water outlet of the solar heat collection device is connected with one end of the first pipeline, and the electric tracing band is arranged at the outdoor exposed section of the first pipeline.
3. The photovoltaic photo-thermal storage dual heating system according to claim 2, wherein the photo-thermal storage unit further comprises:
the solar heat collecting device comprises a solar heat collecting device, a second pipeline, a third pipeline and a fourth pipeline;
the solar heat collection device is used for storing heat generated by the solar heat collection device; the second pipeline, the third pipeline and the fourth pipeline are used for transmitting the heat storage medium;
the water inlet of the solar heat collection device is connected with the other end of the first pipeline, the water outlet of the solar heat collection device is connected with one end of the second pipeline, the water inlet of the solar heat collection device is connected with one end of the third pipeline, and the second pipeline is connected with the third pipeline through the fourth pipeline;
the outdoor exposed section of the third pipeline is also provided with the electric tracing band.
4. The photovoltaic photo-thermal heat storage dual-heating system according to claim 3, wherein a first circulating pump, a first check valve and a first regulating valve are sequentially arranged in the third pipeline according to the flowing direction of the heat storage medium, the first circulating pump is used for ensuring that the heat storage medium circularly flows in the pipeline, a first electromagnetic valve is arranged in the fourth pipeline, the solar heat collection device comprises a first T/P safety valve and a first ball float valve, the first ball float valve is used for automatically replenishing water, the first T/P safety valve is used for ensuring that the internal pressure of the solar heat collection device does not exceed the limit, and a first temperature sensor is arranged at a water outlet of the solar heat collection device and used for collecting and transmitting first heat storage parameters.
5. The photovoltaic photo-thermal storage dual heating system according to claim 4, wherein the photovoltaic thermal storage unit comprises:
the system comprises a solar cell panel, a photovoltaic grid-connected inverter, a distribution box and an auxiliary heater;
the solar panel is used for collecting the solar radiation, converting the solar radiation into electric energy and supplying the electric energy to the auxiliary heater; the photovoltaic grid-connected inverter is used for converting direct current into alternating current to be supplied to an electric boiler and grid-connected; the distribution box is used for connecting with a municipal power grid to realize a grid-connected function; the auxiliary heater is used for consuming the electric quantity generated by the solar panel or consuming the electric energy generated by the commercial power grid to heat the heat storage medium;
the solar cell panel, the photovoltaic grid-connected inverter, the distribution box and the auxiliary heater are sequentially connected.
6. The photovoltaic photo-thermal storage dual heating system according to claim 5, wherein the photovoltaic thermal storage unit further comprises:
the photovoltaic heat storage device comprises a photovoltaic heat storage water device, a fifth pipeline, a sixth pipeline, a seventh pipeline and an eighth pipeline;
the photovoltaic heat storage water device is used for storing heat generated by the auxiliary heater; the fifth pipeline, the sixth pipeline, the seventh pipeline and the eighth pipeline are used for transmitting the heat storage medium;
the water inlet of the auxiliary heater is connected with one end of the seventh pipeline, the water outlet of the auxiliary heater is connected with one end of the fifth pipeline, the other end of the fifth pipeline is connected with the water inlet of the photovoltaic heat storage water device, the water outlet of the photovoltaic heat storage water device is connected with one end of the sixth pipeline, and the sixth pipeline is connected with the seventh pipeline through the eighth pipeline.
7. The photovoltaic photo-thermal heat storage dual-heating system according to claim 6, wherein a second circulating pump, a second check valve and a second regulating valve are sequentially arranged on the seventh pipeline according to a flow direction of the heat storage medium, the second circulating pump is used for ensuring that the heat storage medium circularly flows in the pipeline, the eighth pipeline is provided with a second electromagnetic valve, the photovoltaic heat storage water device is provided with a second T/P safety valve and a second ball float valve, the second ball float valve is used for automatically supplementing water, the second T/P safety valve is used for ensuring that the internal pressure of the photovoltaic heat storage water device does not exceed the limit, a second temperature sensor is arranged at a water outlet of the solar heat collection device and used for collecting and transmitting second heat storage parameters, and a heat exchange coil is further arranged in the solar heat collection device and used for providing life hot water for residents.
8. The photovoltaic photo-thermal storage dual heating system according to claim 7, wherein the heat dissipation unit comprises:
the heating system comprises a first electromagnetic three-way valve, a second electromagnetic three-way valve, a heating water inlet pipe, a heating water return pipe and radiating fins;
the first electromagnetic three-way valve and the second electromagnetic three-way valve are used for connecting pipelines and can change the flow direction of a heat storage medium; the heating water inlet pipe and the heating water return pipe are used for transmitting the heat storage medium; the radiating fin is used for diffusing the heat generated by the solar heat collecting device and the heat generated by the photovoltaic heat storage water device to an indoor environment;
the other end of the second pipeline, the other end of the sixth pipeline and one end of the heating water inlet pipe are all connected with the first electromagnetic three-way valve, the other end of the third pipeline, the other end of the seventh pipeline and one end of the heating water return pipe are all connected with the second electromagnetic three-way valve, and the other end of the heating water inlet pipe and the other end of the heating water return pipe are all connected with the radiating fins.
9. The photovoltaic photo-thermal storage dual heating system according to claim 8, wherein the control unit comprises: a control device;
the control device is used for receiving the first heat storage parameter, the second heat storage parameter, the light intensity sensor data and the indoor temperature sensor data, controlling the electromagnetic valves, the auxiliary heater, the circulating pump and the electric tracing band to work in a coordinated mode, and completing the switching of the operation modes;
the control device is respectively connected with the first temperature sensor, the second temperature sensor, the light intensity sensor and the indoor temperature sensor.
10. The photovoltaic photo-thermal storage dual heating system according to claim 9, wherein the operation mode includes:
a self-circulation mode, a heat collector heating mode and a photovoltaic-auxiliary heater heating mode;
wherein the self-loop mode comprises: the system comprises an auxiliary heater-photovoltaic heat storage water device self-circulation sub-mode and a solar heat collection device-solar heat collection device self-circulation sub-mode;
the auxiliary heater-photovoltaic heat storage water device self-circulation sub-mode circulation loop is as follows: the auxiliary heater-the photovoltaic heat storage water device-the second electromagnetic valve-the second circulating pump-the second check valve-the second regulating valve-the auxiliary heater;
the solar heat collection device-solar heat collection device self-circulation sub-mode circulation loop is as follows: said solar thermal collector-said first solenoid valve-said first circulation pump-said first check valve-said first regulating valve-said solar thermal collector;
the heating loop of the heat collector heating mode is as follows: the solar thermal collector-the first electromagnetic three-way valve-the heat sink-the second electromagnetic three-way valve-the first circulation pump-the first check valve-the first regulating valve-the solar thermal collector;
the heating loop of the photovoltaic-auxiliary heater heating mode is as follows: the auxiliary heater-the photovoltaic heat storage water device-the first electromagnetic three-way valve-the heat sink-the second electromagnetic three-way valve-the second circulation pump-the second check valve-the second regulator valve-the auxiliary heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709237.8A CN115854563A (en) | 2022-12-29 | 2022-12-29 | Photovoltaic photo-thermal heat storage double-heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709237.8A CN115854563A (en) | 2022-12-29 | 2022-12-29 | Photovoltaic photo-thermal heat storage double-heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115854563A true CN115854563A (en) | 2023-03-28 |
Family
ID=85655994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211709237.8A Pending CN115854563A (en) | 2022-12-29 | 2022-12-29 | Photovoltaic photo-thermal heat storage double-heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115854563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823985A (en) * | 2024-03-06 | 2024-04-05 | 山西启远思行能源科技有限公司 | Composite energy storage heating and cooling system |
-
2022
- 2022-12-29 CN CN202211709237.8A patent/CN115854563A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823985A (en) * | 2024-03-06 | 2024-04-05 | 山西启远思行能源科技有限公司 | Composite energy storage heating and cooling system |
| CN117823985B (en) * | 2024-03-06 | 2024-05-31 | 山西启远思行能源科技有限公司 | Composite energy storage heating and cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202532727U (en) | Solar composite utilizing device for low energy consumption housing | |
| CN111023228B (en) | Wind-solar complementary clean heating system integrating molten salt heat storage and air source heat pump | |
| CN104864449A (en) | Hot water heating device having solar energy and off-peak electricity heating energy storage function | |
| CN216716614U (en) | Wind-solar-electric-heat complementary cold-hot water dual-supply system | |
| CN110043991A (en) | A kind of building energy supplying system provided multiple forms of energy to complement each other being based primarily upon solar energy and air energy | |
| CN110068038A (en) | A kind of solar energy or air energy thermal chp system and its method | |
| CN115854563A (en) | Photovoltaic photo-thermal heat storage double-heating system | |
| CN210197447U (en) | Multi-energy complementary school heating energy-saving system | |
| CN109737615B (en) | Small household solar thermoelectric cooling poly-generation system | |
| CN116857707A (en) | Solar photovoltaic photo-thermal, phase-change heat storage and heat pump coupling hot water system | |
| CN204693564U (en) | A kind of hot water heating device with solar energy, low ebb electric heating energy | |
| CN114754428B (en) | Solar photovoltaic photo-thermal multifunctional complementary system assisted by natural gas | |
| CN103162465A (en) | Solar energy supply system | |
| CN207279766U (en) | A kind of electricity auxiliary solar energy heating combined heating system | |
| CN113899084B (en) | Cold and hot water supply system utilizing wind energy and light energy and control method thereof | |
| CN212777604U (en) | Solar energy and ground source heat pump comprehensive heat supply bathing system | |
| CN205403187U (en) | Solar energy power generation heat accumulation constant temperature hot -water heating heating system | |
| CN109681952B (en) | Photovoltaic and photo-thermal hybrid heat pump system | |
| CN111336694B (en) | Heat collecting device for collecting solar energy and control method thereof | |
| CN112197333A (en) | Ground source heat pump heating system based on photovoltaic power generation waste heat | |
| CN219120647U (en) | Double-water tank heating and domestic hot water system of photovoltaic, photo-thermal and electric boiler | |
| CN219797550U (en) | Solar electric heating storage and supply system | |
| CN220397645U (en) | Trough type solar photo-thermal distributed energy storage and heating system | |
| CN210463654U (en) | Energy-saving photovoltaic photo-thermal heat pump | |
| CN220017479U (en) | Solar heat pump light Chu Zhi flexible heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |