CN217109748U - Village and town cleaning heat supply system utilizing solar energy, wind energy and hot water heat accumulator - Google Patents
Village and town cleaning heat supply system utilizing solar energy, wind energy and hot water heat accumulator Download PDFInfo
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- CN217109748U CN217109748U CN202220887316.7U CN202220887316U CN217109748U CN 217109748 U CN217109748 U CN 217109748U CN 202220887316 U CN202220887316 U CN 202220887316U CN 217109748 U CN217109748 U CN 217109748U
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Abstract
The utility model belongs to the technical field of renewable energy heat supply and heat accumulation, a clean heating system of villages and small towns that utilizes solar energy and wind energy and hot water heat accumulator is proposed. The solar energy and the wind energy are used as heating sources, and the prepared hot water is stored in the heat accumulator together with a hot water heat accumulation technology. When the temperature of the hot water meets the requirement, the hot water is directly used for heat supply, and when the temperature of the hot water is insufficient, the wind power is used for secondary heating to supplement heat and ensure that the temperature of the outlet water of the water tank meets the requirement; the wind power generation is used for heat compensation and electric tracing of the outdoor part of the pipeline and the heat-insulating layer of the high-level water tank. The utility model provides an unstable problem of solar energy and wind energy heat supply, ensure the reliability of heating, the system is simple, simple to operate, area is little, is applicable to the area that can't realize extensive central heating, breaks the heating mode of traditional scattered coal burning or the burning of timber straw, effectively solves heating in villages and small towns, excessive dispersion, inefficiency and high contaminated problem, reduces the carbon emission of running cost and heating in villages and small towns.
Description
Technical Field
The utility model relates to a renewable energy heat supply and heat accumulation technical field, in particular to utilize clean heating system in villages and small towns of solar energy and wind energy and hot water heat accumulator.
Background
The central heating is common in northern cities, the heating requirements and loads of villages and towns are scattered, the central heating belongs to an area which is difficult to cover, the mode of bulk coal combustion or wood straw combustion is mostly adopted for winter heating of villages and towns in China at present, the mode has low heating efficiency, indoor and outdoor environmental pollution caused by the mode is serious, especially, indoor particulate matters are prone to exceeding standards and carbon monoxide poisoning, and hidden dangers are brought to the health of people and even the life safety of people. The villages and the towns do not have high-rise building shelters, and solar energy and wind energy are easily obtained, so that the task of pushing the villages and the towns to fully utilize scattered renewable energy sources to construct a clean heating system is not slow.
In view of the above problems, according to the requirements of building modern energy systems and low-carbon heating in China, solar energy and wind energy heating and heat storage heating technologies are built in villages and small towns. Solar energy is used as a clean renewable energy source, so that the utilization value is high, the solar energy resources in China are rich but are distributed unevenly, the solar energy utilization rate in vast rural areas is low, and the heating operation cost of villages and towns can be effectively reduced by using the solar energy for heating; in addition, the installed capacity of wind power in China is continuously increased, the wind power is gradually utilized mature, high-rise buildings in village and town areas are few, good wind power resources are provided in winter, clean heating can be achieved, and carbon emission of heat supply in villages and towns is further reduced.
The solar energy and wind energy heating system and the hot water heat storage system can be installed by utilizing the positions of a house roof, a courtyard open space, a conditioned single-storey house roof and the like, and have the advantages of small occupied area, convenience in installation and the like.
The utility model discloses utilize solar energy and wind energy as the clean heating's in villages and small towns heat source, utilize hot water heat accumulation technique simultaneously, the hot water storage that will prepare in the heat accumulator, can directly be used for the heat supply when hot water temperature reaches the requirement, when hot water temperature is not enough, utilize wind power generation to carry out the secondary heating to supply the heat and make water tank leaving water temperature reach the requirement, wind power generation can also be used for the electric heat tracing of outdoor partial pipeline and high-order water tank heat preservation except being used for the concurrent heating. The defect of unstable heat supply of solar energy and wind energy is further overcome, the reliability of heat supply is ensured, and the operation cost and the carbon emission of heating in villages and small towns are reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize clean heating system in villages and small towns of solar energy and wind energy and hot water heat accumulator, with the hot water that solar energy prepared, store in the heat accumulator, utilize wind power generation, carry out secondary heating to the hot water in the heat accumulator, increase the heat accumulation volume in the heat accumulator and make the hot water in the heat accumulator reach required temperature. The heat supply problem of villages and small towns is solved, and the balance of initial investment and operating cost is realized.
The technical scheme of the utility model: a village and town cleaning heat supply system utilizing solar energy, wind energy and hot water heat accumulators comprises a high-level water tank 1, a controller 2, a wind power generation device 3, a user side heating variable frequency pump 4, a solar panel 5, a heat accumulator 6, a solar side circulating variable frequency pump 7, a water treatment system 8, a valve 9, a distribution box 10, an electromagnetic valve and a static balance valve;
the external surfaces of the high-level water tank 1, the outdoor partial pipeline connected with the high-level water tank 1 and the water treatment system 8 are wound with electric heating wires, and are wrapped with heat insulation materials and protective layers;
the high-level water tank 1 is connected to the bottom of the heat accumulator 6 through a valve 9, a water treatment system 8 and an electromagnetic valve aP1 in sequence; the top of the heat accumulator 6 is provided with an overflow port for draining water, an electric heater is arranged in the heat accumulator 6, and the electric heater is powered by a distribution box 10;
an outlet at the lower part of the heat accumulator 6 is connected to an inlet of the solar panel through a solar side circulation variable frequency pump 7; the outlet of the solar panel is connected to the inlet at the upper part of the heat accumulator 6 through an electromagnetic valve bP2, and the inlet at the upper part is positioned above the electric heater;
a plurality of temperature measuring points are vertically and uniformly distributed in the heat accumulator 6 and used for monitoring the water temperature change condition in the heat accumulator 6 in real time and feeding back the water temperature change condition to the controller 2, the controller 2 is respectively connected with an inlet and outlet pipeline of the solar panel 5 and used for monitoring the inlet and outlet temperature of the solar panel 5, and the controller 2 controls the on and off of an electric heater in the heat accumulator 6 according to the inlet and outlet water temperature of the solar panel 5 and the water temperature change condition in the heat accumulator 6;
the bottom of the heat accumulator 6 is provided with a drain outlet for emptying the stored water in the system when the system does not work;
the distribution box 10 supplies power to the electric heater and the heating wire by connecting the wind power generation device 3, and supplies power by an external power supply when necessary; the distribution box 10 is used for supplying power to the solar panel inlet pipeline, the high-level water tank 1 water outlet pipeline, the water treatment system 8, the solar panel outlet pipeline and the heating wires on the secondary network supply and return pipelines respectively; the secondary network water supply and return pipelines are respectively connected to the upper end and the lower end of the heat accumulator 6;
the user side heating variable frequency pump 4 is arranged on a secondary network water supply pipeline and is positioned at a water supply port of the heat accumulator 6; the static balance valve aK1 and the static balance valve bK2 are respectively arranged at each secondary network household pipeline, and aiming at the change of the heat load of a user, the pressure drop and the flow are adjusted to ensure the qualification pressure difference of a radiator on the worst loop, so that the dynamic balance function of a pipe network is realized.
The heat storage process of the system is as follows: cold water in the heat accumulator 6 is pressurized by a solar side circulation variable frequency pump 7 and flows into the solar panel 5 for heating; the heated hot water flows through the electromagnetic valve bP2 and enters the heat accumulator 6 to complete the heat accumulation circulation; when the water temperature in the heat accumulator 6 does not meet the heating requirement, the wind power generation device 3 supplies energy to the electric heater to start, and the hot water in the heat accumulator 6 is heated to the temperature required by heating;
the exothermic process of the system is as follows: hot water in the heat accumulator 6 is pressurized by the user side heating variable frequency pump 4 and then is delivered to a user for heating, and heating return water flows back into the heat accumulator 6 to complete heating circulation.
When the system needs water supplement, the valve 9 and the electromagnetic valve aP1 are opened, and the valve is closed in the rest time; water in the high-level water tank 1 enters the water treatment system 8 under the action of gravity, and enters the heat accumulator 6 for water supplement after the water quality reaches the standard. The high-level water tank is connected with a tap water pipe for water replenishing.
The controller 2 is the key for realizing automatic control of the system, monitors the temperature of the solar panel inlet and the temperature of the solar panel outlet, monitors the temperature layering condition in the heat accumulator 6, coordinates with the distribution box 10 and controls the stop and start of the electric heater.
The distribution box 10 controls the high-level water tank 1, an outdoor part pipeline connected with the high-level water tank 1 and a heating wire wound by the water treatment system 8 to be powered on and off according to the outdoor temperature, so that water in the water replenishing system is prevented from being frozen due to low temperature in winter, and the distribution box 10 supplies power to the electric heater.
The overflow port is communicated with the atmosphere, and the water outlet is closed under the action of gravity; when the water in the heat accumulator 6 is excessive, the overflow port valve automatically opens to drain water when the water level rises or the air is exhausted; in other cases, the overflow port valve is manually opened to drain water.
When the temperature of the hot water prepared by solar energy is insufficient and cannot meet the heating requirement, the wind power generation device 3 is used for providing electric energy for the electric heater to heat the hot water in the heat accumulator 6 to the temperature required by heating.
When the system operates in winter, the problem of pipeline freezing is easy to occur, so that heating wires and heat insulation layers are needed to be additionally arranged on outdoor partial pipelines, electric tracing treatment is carried out by using electric energy generated by the wind power generation device 3, and the operation safety of the system is ensured. When electric tracing is not needed, the electric energy of the wind power generation device 3 can be completely used for heating hot water in the water tank of the heat accumulator 6, so that the heat supply capacity is further increased, and the wind power waste is reduced. When the wind power generation cannot heat the heating hot water in the heat accumulator 6 under full load due to the fact that the electric tracing is guaranteed in extremely cold weather and the solar energy is insufficient, the external power supply can be used for heating the heating hot water in the heat accumulator 6, and therefore the reliability of heat supply is guaranteed, but the situations are few.
The user side heating variable frequency pump 4 can dynamically adjust according to the user side heat load demand condition and the pressure difference of the worst heat exchanger, adjusts the flow of a pipe network, and plays a role in saving energy.
The heat accumulator 6 is used for storing hot water prepared by the solar panel 5, is provided with an electric heater and heats the hot water for the second time when necessary, so that the hot water in the heat accumulator 6 reaches the temperature required by heating. The water distribution disk in the inlet at the upper part of the heat accumulator 6 has upward openings, and the water distribution disk at the outlet at the lower part has downward openings, so that the water flow is ensured to be uniform.
The outdoor pipeline part of the system is as short as possible to prevent the pipeline freezing problem during winter operation, and in addition, the outdoor pipeline is additionally provided with an electric tracing heat and an insulating layer, and the power supply of the electric tracing heat comes from the distribution box 10.
The utility model discloses an intelligent control system carries out real-time supervision to the water temperature in the heat accumulator 6 to this control electric heater stop opening with the size of power, be used for electric tracing with unnecessary electric energy, can reduce the unnecessary wasting of resources.
The utility model has the advantages that: the utility model discloses an utilize clean heating system in villages and small towns of solar energy and wind energy and hot water heat accumulator to the characteristics of the heating in villages and small towns winter, select clean energy solar energy and wind energy as heat source preparation heating water to store in the heat accumulator, reduce the influence of solar energy and wind energy instability to the heating reliability with this. The utility model discloses the system is simple, simple to operate, and is with low costs, and area is little, is applicable to the area that can't realize extensive central heating such as villages and small towns, utilizes solar energy and wind energy to heat, need not adopt traditional coal-fired heating, has effectively solved villages and small towns heating, excessive dispersion, inefficiency, high pollution's problem, and it has important meaning to accelerate rural energy transformation development helping hand rural area happy.
Drawings
Fig. 1 is a flow chart of a villages and small towns clean heating system using solar energy, wind energy and hot water heat accumulator of the present invention.
In the figure: 1, a high-level water tank; 2, a controller; 3, a wind power generation device; 4, a user side heating variable frequency pump; 5 a solar panel; 6, a heat accumulator; 7 solar side circulation variable frequency pump; 8, a water treatment system; 9 a valve; 10 a distribution box; p1-solenoid valve a; p2-solenoid valve b; k1 static balancing valve a; k2 statically balances valve b.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
Fig. 1 is a flow chart of a village and town clean heat supply system using solar energy, wind energy and hot water heat accumulator, which includes a high-level water tank 1, a controller 2, a wind power generation device 3, a user side heating variable frequency pump 4, a solar panel 5, a heat accumulator 6, a solar side circulation variable frequency pump 7, a water treatment system 8, a valve 9, an electric cabinet, an electromagnetic valve aP1, an electromagnetic valve bP2, a static balance valve aK1 and a static balance valve bK 2.
When the system needs to be supplemented with water, the valve 9 and the electromagnetic valve aP1 are opened, and the valve is closed in the rest time. Water in the high-level water tank 1 enters the water treatment system 8 under the action of gravity, and after treatment, the water enters the heat accumulator 6 for water supplement after reaching the standard.
A heat storage process: cold water in the heat accumulator 6 is pressurized by the solar side circulation variable frequency pump 7, flows into the solar panel 5 to be heated, and hot water flows through the electromagnetic valve bP2 and enters the heat accumulator 6 to complete heat accumulation circulation; when the water temperature in the heat accumulator 6 does not meet the heating requirement, the electric heater is started to consume the electric energy output by the wind power generation device 3, and the hot water in the heat accumulator 6 is heated to the temperature required by heating.
An exothermic process: hot water in the heat accumulator 6 is pressurized by the user side heating variable frequency pump 4 and then is delivered to the user side for heating, and heating return water flows back into the heat accumulator 6 to complete heating circulation.
The controller 2 is the key for realizing the automatic control of the system, monitors the temperature layering condition in the heat accumulator 6 by monitoring the inlet temperature T1 and the outlet temperature T2 of the solar panel, coordinates with the electric cabinet 10, controls the stop and start of the electric heater, and ensures that the water supply temperature meets the requirement of the heating standard.
The electric energy output by the wind power generation device 3 is uniformly allocated by the electric cabinet 10, one part is used for providing energy for the electric heater, and the other part is used for electric tracing, so that the phenomenon that the pipeline is frozen when running in winter is avoided, and the safety of the system is ensured.
The outdoor pipeline is arranged as simply as possible, the heat loss of hot water in the pipeline is reduced, the outdoor pipeline is required to be as short as possible, the heat-insulating layer is additionally arranged, and the electric tracing mode is adopted, so that the phenomenon that the system is frozen when running is prevented, and the normal running of the system is prevented from being influenced.
7 temperature measuring points are vertically and uniformly distributed in the heat accumulator 6 and used for monitoring the change condition of the water temperature in the heat accumulator 6 in real time.
When the system does not work, water in the system is drained through a drain outlet of the heat accumulator 6.
The utility model discloses to the particularity of villages and small towns heating, a utilize clean heating system of villages and small towns of solar energy and wind energy and hot water heat accumulator is proposed, clean energy solar energy of rational utilization and wind energy are as heat source preparation heating water to store in hot water heat accumulator, the user of supplying with heats, need not adopt traditional coal-fired heating, the heating of villages and small towns has effectively been solved, the dispersion, low efficiency, the high pollution scheduling problem can promote rural energy transformation, for realizing in the carbon and making the contribution.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A village and town cleaning heat supply system utilizing solar energy, wind energy and a hot water heat accumulator is characterized by comprising a high-level water tank (1), a controller (2), a wind power generation device (3), a user side heating variable frequency pump (4), a solar panel (5), a heat accumulator (6), a solar side circulation variable frequency pump (7), a water treatment system (8), a valve (9), a distribution box (10), an electromagnetic valve and a static balance valve;
the outer surfaces of the high-level water tank (1), the outdoor partial pipeline connected with the high-level water tank (1) and the water treatment system (8) are provided with heating wires, heat insulation materials and protective layers;
the high-level water tank (1) is connected to the bottom of the heat accumulator (6) sequentially through a valve (9), a water treatment system (8) and an electromagnetic valve a (P1); the top of the heat accumulator (6) is provided with an overflow port for draining water, an electric heater is arranged in the heat accumulator (6), and the electric heater is powered by a distribution box (10);
an outlet at the lower part of the heat accumulator (6) is connected to an inlet of the solar panel through a solar side circulation variable frequency pump (7); the outlet of the solar panel is connected to the inlet at the upper part of the heat accumulator (6) through an electromagnetic valve b (P2), and the inlet at the upper part is positioned above the electric heater;
a plurality of temperature measuring points are vertically and uniformly distributed in the heat accumulator (6), are used for monitoring the water temperature change condition in the heat accumulator (6) in real time and are respectively connected to the controller (2); the controller (2) is respectively connected with an inlet and outlet pipeline of the solar panel (5) and used for monitoring the inlet and outlet temperatures of the solar panel (5), and the controller (2) controls the on and off of an electric heater in the heat accumulator (6) according to the inlet and outlet water temperatures of the solar panel (5) and the water temperature change in the heat accumulator (6);
the bottom of the heat accumulator (6) is provided with a drain outlet for emptying the stored water in the system when the system does not work;
the distribution box (10) is connected with the wind power generation device (3) and an external power supply and is used for supplying energy; the distribution box (10) is respectively connected to a solar panel inlet pipeline, the high-level water tank (1), a high-level water tank (1) water outlet pipeline, the water treatment system (8), a solar panel outlet pipeline and heating wires on the secondary network supply and return pipelines for supplying power; the secondary network water supply and return pipelines are respectively connected to the upper end and the lower end of the heat accumulator (6);
a user side heating variable frequency pump (4) is arranged on a secondary network water supply pipeline and is positioned at a water supply port of the heat accumulator (6); and a static balance valve a (K1) and a static balance valve b (K2) which are respectively arranged at each secondary network household pipeline and used for regulating pressure drop and flow.
2. The clean village and town heating system using solar and wind energy and hot water heat accumulators as claimed in claim 1, wherein said overflow outlet is in communication with the atmosphere.
3. The clean heating system for villages and small towns using solar and wind energy and hot water heat accumulator according to claim 1, characterized in that a water distribution disk with upward opening is arranged in the inlet at the upper part of the heat accumulator (6); a water distribution disc with a downward opening is arranged at the outlet at the lower part of the heat accumulator (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220887316.7U CN217109748U (en) | 2022-04-18 | 2022-04-18 | Village and town cleaning heat supply system utilizing solar energy, wind energy and hot water heat accumulator |
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| CN202220887316.7U CN217109748U (en) | 2022-04-18 | 2022-04-18 | Village and town cleaning heat supply system utilizing solar energy, wind energy and hot water heat accumulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847603A (en) * | 2024-01-18 | 2024-04-09 | 山东第一医科大学(山东省医学科学院) | Energy-saving heating equipment with high heating efficiency |
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2022
- 2022-04-18 CN CN202220887316.7U patent/CN217109748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847603A (en) * | 2024-01-18 | 2024-04-09 | 山东第一医科大学(山东省医学科学院) | Energy-saving heating equipment with high heating efficiency |
| CN117847603B (en) * | 2024-01-18 | 2024-06-04 | 山东第一医科大学(山东省医学科学院) | Energy-saving heating equipment with high heating efficiency |
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