CN210035682U - Solar energy seasonal soil energy storage heating system - Google Patents
Solar energy seasonal soil energy storage heating system Download PDFInfo
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- CN210035682U CN210035682U CN201920709068.5U CN201920709068U CN210035682U CN 210035682 U CN210035682 U CN 210035682U CN 201920709068 U CN201920709068 U CN 201920709068U CN 210035682 U CN210035682 U CN 210035682U
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Abstract
The utility model relates to the technical field of solar heat utilization, in particular to a solar energy seasonal soil energy storage heating system, which comprises a solar heat collector arranged on a heating building, a radiator arranged in the heating building, a heat storage pool arranged below the earth surface, a transmission pipeline for communicating the solar heat collector with the radiator, a heat transfer carrier arranged in the transmission pipeline, and the like; the heat storage pool is composed of heat exchange wells distributed radially from the center, U-shaped heat exchange tubes are arranged in each heat exchange well, the upper ends of the U-shaped heat exchange tubes are connected in series by virtue of underground collecting tubes, and the depth of each heat exchange well is 30-50 m. Compared with the ground source heat pump soil energy storage mode, the utility model reduces the occupied area by 70%; the cost is reduced by 40%, the energy storage time is shortened by 50%, the heat supply temperature is increased by 12-15 ℃ in the same period, the heat supply time is prolonged by 1.5-1.8 times, and the economic benefit and the thermal performance index are greatly improved.
Description
Technical Field
The invention relates to the technical field of solar heat utilization, in particular to a solar cross-season soil energy storage heating system which is particularly suitable for winter heating in most areas in North China.
Background
At present, the bottleneck of emission reduction of the haze in the north is the emission problem of coal-fired heating in winter, the solar energy is used as auxiliary heating energy, a powerful measure for solving the haze cause is provided, and long-term economic benefits and ecological and social benefits are remarkable. However, the solar energy system is restricted by weather and night, and cannot work all weather, so that other auxiliary energy sources and corresponding equipment must be matched for heating by utilizing solar energy at present. In order to solve the problem of effective utilization of solar energy in heating seasons, various energy storage technologies matched with a solar energy heat utilization system are developed, wherein the solar energy seasonal soil energy storage technology is suitable for national conditions and is fast in development.
The existing solar energy seasonal soil energy storage heating mode is often followed by a mature soil energy storage technology of a ground source heat pump. However, the soil energy storage of the ground source heat pump is essentially different from the solar seasonal soil energy storage. The ground source heat pump soil energy storage requires that the temperature of the soil around the heat exchange well is stable so as to be convenient for heat extraction in winter and cold extraction in summer. In order to reduce the temperature change outside the heat exchange wells and prevent the thermal interference among the heat exchange wells, the well spacing is generally selected to be 4-6m or more, the well position arrangement adopts a grid type or a rectangle, and the heat exchange well depth is all between 100 and 180 m. The solar energy soil energy storage and heat storage pool is built according to the soil energy storage method of the ground source heat pump, and the thickness of the solar energy soil energy storage and heat storage pool is 100m2The building area is energy storage and heating, the cost of a single-hole heat exchange well needs 1-1.2 ten thousand yuan, the investment is very high, and the heating application effect is not good due to unreasonable layout and the influence of underground water level.
Disclosure of Invention
The invention provides a solar energy seasonal soil energy storage heating system, which realizes four-season heating and warming, has a simple structure and is convenient to operate.
The specific technical scheme of the invention is as follows:
a solar energy seasonal soil energy storage heating system comprises a solar heat collector arranged on a heating building, a radiator arranged in the heating building, a heat storage pool arranged below the ground surface, a transmission pipeline for communicating the solar heat collector with the radiator, the heat storage pool, the transmission pipeline and a heat transfer carrier arranged in the transmission pipeline; the heat storage pool is composed of heat exchange wells distributed radially from the center, U-shaped heat exchange tubes are arranged in each heat exchange well, the upper ends of the U-shaped heat exchange tubes are connected in series by virtue of underground collecting tubes, and the depth of each heat exchange well is 30-50 m.
The heat exchange wells are arranged in a variable-interval mode by gradually increasing the interval from the center to the outside, and are distributed on the end points or the side lengths of a plurality of concentric regular polygons.
The regular polygon is a regular hexagon, the radius D of the regular hexagon at the innermost layer is 1-1.5m, the difference value between the radius of the Nth layer and the radius of the Nth-1 layer of the regular hexagons sequentially arranged from inside to outside is D + (N-1) D, wherein D is 0.2-0.3m, N is more than or equal to 1, and N is a positive integer; the heat exchange wells and the two heat exchange wells in the adjacent layers are arranged in an equilateral mode.
The U-shaped heat exchange tubes are arranged from the center outwards and form 6-7U-shaped heat exchange tube series groups, all the U-shaped heat exchange tube series groups are radially distributed from the center, and the outermost U-shaped heat exchange tubes are arranged in parallel.
The center end of the underground collecting pipe is communicated with the water inlet pipe; the outermost U-shaped heat exchange tubes are connected in parallel and communicated with the water return tube.
The heat storage pool is paved with a heat insulation layer, the thickness of the heat insulation layer is more than 30cm, and the thickness of a soil layer paved on the heat insulation layer is 0.7-1 m.
A central temperature measuring well is arranged in the center of the heat storage pool, a heat storage pool temperature sensor is arranged in the central temperature measuring well, a peripheral temperature measuring well is arranged at the periphery of the heat storage pool, a heat storage pool temperature sensor is arranged in the peripheral temperature measuring well, and the peripheral temperature measuring well is arranged in the same side with the two adjacent peripheral heat exchange wells; a heat collector temperature sensor is arranged in the solar heat collector.
The temperature measuring points are arranged inside the central temperature measuring well and the peripheral temperature measuring wells, the temperature measuring points comprise upper measuring points, middle measuring points and lower measuring points, the lower measuring points are arranged 1-1.5m above the bottom of the U-shaped heat exchange tube, the upper measuring points are arranged 0.5-1m below the heat insulating layer, and the number of the middle measuring points is 1-3.
When the heat transfer carrier is water,
the heating system comprises a valve B and a water pump A which are communicated with the solar heat collector and the U-shaped heat exchange tube, a valve A and a water pump B which are communicated with the solar heat collector and the heat radiator, a water pump B which is communicated with the heat radiator and the U-shaped heat exchange tube, a water inlet pipe and a water return pipe which are connected with the buried collecting pipe, a controller arranged in the heating building, and a heat collector temperature sensor and a heat storage pool temperature sensor which are respectively connected with the controller.
When the heat transfer carrier is air,
the heating system comprises an air valve B and a pipeline pump which are communicated with the solar heat collector and the U-shaped heat exchange tube, an air valve A and a pipeline pump B which are communicated with the solar heat collector and the heat radiator, an air valve C and a pipeline pump B which are communicated with the heat radiator and the U-shaped heat exchange tube, an air inlet pipe and an air outlet pipe which are connected with the U-shaped heat exchange tube, a controller arranged in the heating building, a heat collector temperature sensor and a heat storage pool temperature sensor which are respectively connected with the controller, an air valve D and an air valve E which are connected with the air outlet pipe, an air filter is arranged in the heating building, and the air filter is connected with.
The invention has the beneficial effects that:
compared with the heat storage pool built by the ground source heat pump soil energy storage method in the prior art, the heat storage pool also supplies heat for a building area of 2000 square meters, the system of the invention needs 84 heat exchange wells with the depth of 35m, the ground source heat pump soil energy storage needs 28 heat exchange wells with the depth of 100m, and the energy storage soil volumes of the heat storage pools are basically equal. The construction cost of the heat exchange wells with the depth of 35m is 1000-2The square meter is 346 square meter with 70% of floor area, 40% of cost, 50% of energy storage time, 12-15 deg.C of heat supply temperature, 1.5-1.8 times of heat supply time, and greatly increased economic benefit and thermal performance. The solar energy cross-season soil energy storage heating system has the following structural advantages:
(1) in order to reduce the heat dissipation loss, the smaller the peripheral surface area is, the better the heat storage tank volume is. In order to reduce the surface area of the heat storage pool, the depth of the heat exchange well is close to the diameter of the heat storage pool, and is preferably 30-50m, so that the depth of the heat exchange well is 30-50 m.
(2) In order to reduce the surface area of the heat storage pool, the heat exchange wells are distributed in a radial shape from the center and are distributed on the end points or the side length of a plurality of concentric regular polygons; in order to further reduce the surface area of the heat storage pool, 1-3 heat exchange wells at the vertex angles of the regular hexagon can be symmetrically removed, so that the connecting line of the peripheral heat exchange wells is closer to a circle, the heat dissipation surface area is reduced, and the heat loss is further reduced.
(3) The heat exchange wells are arranged in a variable-interval mode by gradually increasing the interval from the center to the outside, the heat exchange wells in the center of the heat storage pool are arranged densely, the heat accumulation effect is increased, the central temperature of the heat storage pool is increased as much as possible, the interval between the heat exchange wells in the periphery of the heat storage pool is increased, the peripheral temperature of the heat storage pool is reduced as much as possible, a temperature gradient is formed, and the heat loss outwards is reduced. The heat exchange wells and the two heat exchange wells of the adjacent layers are arranged in an equilateral way and are arranged in an approximate isosceles triangle way, so that the horizontal thermal field dead angle of the adjacent heat exchange wells is minimum.
(4) The U-shaped heat exchange tubes are radially grouped and are communicated with the water inlet pipe through the buried collecting pipe, the U-shaped heat exchange tubes on the outermost layer of the heat storage pool are connected in parallel and are then respectively communicated with the water return pipe, and the water inlet pipe and the water return pipe are arranged to further reduce temperature loss.
(5) In order to further reduce the temperature loss, the top of the heat storage pool is provided with a heat insulation layer with the thickness of more than 30cm, and a soil layer covers the heat insulation layer by 0.7-1 m.
(6) The depth of the heat exchange well is 30-50m, because the heat exchange well is much shallower than a heat storage well required by a ground source heat pump, and the influence of flowing underground water on the temperature of the heat storage pool can be not considered based on the hydrological distribution condition in North China.
(7) In order to conveniently control the heating, energy storage and heat taking of the heat storage pool, a central temperature measuring well is arranged in the center of the heat storage pool, a heat storage pool temperature sensor is arranged in the central temperature measuring well, a peripheral temperature measuring well is arranged on the periphery of the heat storage pool, and a heat storage pool temperature sensor is arranged in the peripheral temperature measuring well.
Drawings
FIG. 1 is a schematic diagram of a solar energy seasonal soil energy storage heating system;
FIG. 2 is a longitudinal cross-sectional view of the thermal storage tank of FIG. 1;
FIG. 3 is a plan view of a variable spacing arrangement of heat exchange wells;
FIG. 4 is a diagram of an arrangement of 84-hole heat exchange wells and an arrangement of water inlet and outlet pipelines;
FIG. 5 is a diagram of 90-hole heat exchange well arrangement and water inlet and outlet pipeline arrangement;
FIG. 6 is a diagram of arrangement of 108 heat exchange wells and arrangement of water inlet and outlet pipelines;
FIG. 7 is a diagram of 120-hole heat exchange well arrangement and water inlet and outlet pipeline arrangement;
FIG. 8 is a diagram of arrangement of the 132-hole heat exchange wells and arrangement of water inlet and outlet pipes;
FIG. 9 is a diagram of a 150-hole heat exchange well arrangement and water inlet and outlet pipeline arrangement;
FIG. 10 is a diagram of a 162-well arrangement;
FIG. 11 is a schematic diagram of a solar cross-season soil energy storage air heating system;
in the attached drawings, 1, U-shaped heat exchange tubes; 2. a heat exchange well; 3. a heat-insulating layer; 4. an underground collector pipe;
5. a central temperature measurement well; 6. a water inlet pipe; 7. a heat storage tank; 8. a water return pipe; 9. a peripheral temperature measurement well; 10. an outdoor ground; 11. a valve A; 12. a valve B; 13. a water pump A; 14. a water pump B; 15. a thermal storage tank temperature sensor; 16. a controller; 17. a heat sink; 18. heating a building; 19. a solar heat collector; 20. a collector temperature sensor; a. an upper measurement point; b. a middle measurement point; c. a lower measurement point; 21. an air valve A; 22. an air valve B; 23. a pipeline pump A; 24. a pipeline pump B; 25. an air valve C; 26. an air inlet pipe; 27. an exhaust pipe; 28. an air valve E; 29. an air cleaner; 30. and an air valve D.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, in the solar cross-season soil energy storage and heating system, a solar thermal collector 19 arranged on a heating building 18 collects heat, and when sunlight is sufficient in spring, summer, autumn and winter, the surplus heat collected by the solar thermal collector 19 is used as a heat transfer carrier, and water or air is injected into a heat storage pool 7 through a transmission pipeline by a controller 16 control valve to store heat; as shown in fig. 2, the heat storage tank 7 is composed of a plurality of heat exchange wells 2, the heat exchange wells 2 are internally provided with U-shaped heat exchange tubes 1, the U-shaped heat exchange tubes 1 transfer heat to soil through water or air, the soil between the heat exchange wells 2 is utilized to store heat energy, the water or air is pumped into the U-shaped heat exchange tubes 1 in a heating season, and the heat energy stored in the soil is led out for heating through heat exchange on the wall surfaces of the heat exchange tubes.
The solar energy soil energy storage test result shows that: when the heat transfer carrier at the inlet is used for energy storage at 50-60 ℃, the heat is exchanged by vertically burying the pipe, and the long-term heat transfer distance of the soil in the horizontal direction is not more than 1.5 m. Therefore, the average pitch of the heat exchange wells 2 is not preferably more than 3 m. The heat-insulating layer 3 is arranged on the heat-storing pool 7 to prevent heat dissipation, the heat dissipation capacity is less than or equal to 20% of the total heat, the heat dissipation capacity below the heat-storing pool 7 is less than or equal to 8% of the total heat, and the heat dissipation capacity at the periphery of the heat-storing pool 7 is more than or equal to 70% of the total heat. In order to reduce the heat dissipation loss, the smaller the peripheral surface area is, the better the volume of the heat storage pool 7 is. In order to reduce the surface area of the heat storage pool 7, the depth of the heat exchange well 2 is close to the diameter of the heat storage pool 7, and is preferably 30-50m, so that the depth of the heat exchange well 2 is 30-50 m.
Therefore, the heat exchange wells 2 shown in fig. 3 are distributed radially from the center of the heat storage pool 7, the heat exchange wells 2 are distributed on the end points or the side lengths of a plurality of concentric regular hexagons, the heat exchange wells 2 and two adjacent heat exchange wells 2 are arranged in an equilateral mode, the radius D of the regular hexagon at the innermost layer is 1-1.5m, the difference value between the radius of the N-th layer of the regular hexagons sequentially arranged from inside to outside and the radius of the N-1-th layer is D + (N-1) D, wherein D is 0.2-0.3m, N is more than or equal to 1, and N is a positive integer. The heat exchange well 2 is arranged in a variable-interval mode, so that the distribution area can be reduced to the maximum degree, and the heat loss is reduced to the maximum degree. Because various soils have different heat capacities, in the actual engineering, D and D take low values when the soil heat capacity is large, and D and D take high values when the soil heat capacity is small; in order to reduce the surface area of the heat storage pool 7, 1-3 heat exchange wells 2 at the vertex angles of the regular hexagon can be symmetrically removed, so that the connecting line of the peripheral heat exchange wells 2 is closer to a circle, the heat dissipation surface area is reduced, and the heat loss is further reduced.
After the number of the heat exchange wells 2 is determined, the drilling depth is selected between 30 m and 50 m. Because the heat exchange well 2 is much shallower than a heat storage well required by a ground source heat pump, the influence of flowing underground water on the temperature of the heat storage pool 7 can be not considered based on the hydrological distribution condition in North China.
Theoretically, the more the heat exchange wells 2 are, the more heat is stored, the lower the heat storage pool 7 is than 30 wells, the peripheral area of the heat storage pool 7 is relatively large, and the heat dissipation loss is obviously increased. Fig. 4-10 of the present invention show an embodiment of a heat exchange well 2 with 84-162 holes.
In order to reduce the heat dissipation amount, the temperature of the periphery of the heat storage tank 7 should be reduced as much as possible. During heat storage, the heat transfer carrier preferably enters from the center and exits from the periphery; when heating, the heat transfer carrier preferably enters from the periphery and exits from the center. The arrangement of the heat exchange wells 2 ensures that the heat exchange wells 2 at the center of the heat storage pool 7 are densely arranged, the heat accumulation effect is increased, the central temperature of the heat storage pool 7 is improved as much as possible, the distance between the heat exchange wells 2 at the center of the heat storage pool 7 is minimum, and the distance between the heat exchange wells 2 is gradually increased from the center outwards, so that the plurality of heat exchange wells 2 are arranged at variable intervals, the peripheral temperature of the heat storage pool 7 is reduced as much as possible, a temperature gradient is formed, and the heat loss outwards is reduced. The heat exchange well 2 and the two heat exchange wells 2 of the adjacent layers are arranged in an equilateral way and are arranged in an approximate isosceles triangle way, so that the dead angle of the horizontal thermal field of the adjacent heat exchange wells 2 is minimum.
The U-shaped heat exchange tubes 1 in the heat storage pool 7 are outwards arranged from the center, 6-7 are formed into U-shaped heat exchange tube series groups, all the U-shaped heat exchange tube series groups are radially distributed from the center, the upper ends of all the U-shaped heat exchange tubes 1 are connected in series by virtue of the underground bus-bars 4, and the central ends of the underground bus-bars 4 are communicated with the water inlet pipe 6; the outermost layer U-shaped heat exchange tube 1 of the heat storage pool 7 is connected in parallel and communicated with the water return pipe 8. The total length of the single U-shaped heat exchange tube 1 is 60-90m, and the total length of the series tubes is 360-600 m. The connection mode of the U-shaped heat exchange tubes 1 and the variable-interval arrangement mode of the auxiliary heat exchange wells 2 further gather heat at the center of the heat storage pool 7, so that heat loss is avoided; the water inlet pipe 6 and the water return pipe 8 are arranged, so that the temperature loss is further reduced.
In order to conveniently control the heating, energy storage and heat extraction to the heat storage pool 7, the actual engineering must be provided with a temperature measuring well, and a heat storage pool temperature sensor 15 is arranged in the well and used for observing and controlling the energy storage condition of the heat storage pool 7. The central temperature measuring well 5 is arranged in the center of the heat storage pool 7, and the peripheral temperature measuring well 9 and the two adjacent peripheral heat exchange wells 2 are arranged in an equilateral mode and are arranged on the outer layer of the heat storage pool 7 in an isosceles triangle mode. The central temperature measuring well 5 and the peripheral temperature measuring well 9 are provided with temperature measuring points, the lower measuring point c is arranged within the range of 1-1.5m away from the bottom of the U-shaped heat exchange tube 1, the upper measuring point a is arranged within the range of 0.5-1m below the heat preservation layer 3, and the middle measuring points b can be arranged 1-3 as required.
After the U-shaped heat exchange tube 1 is arranged in the heat exchange well 2 and the temperature sensor is arranged in the measuring well, fine sand is used for filling. In order to further reduce the temperature loss, the heat-insulating layer 3 with the thickness of more than 30cm is laid on the heat-storing pool 7, and the soil layer is covered on the heat-insulating layer 3 by 0.7-1 m.
The solar energy seasonal soil energy storage heating system disclosed by the invention works by taking water as a heat transfer carrier, as shown in figure 1.
1. If energy storage is needed, when the temperature of the outlet at the upper end of the solar heat collector 19 reaches a set value, the heat collector temperature sensor 20 transmits a signal to the controller 16, the valve A11 and the water pump B14 are controlled to be closed, the valve B12 and the water pump A13 are controlled to be opened, the waste heat water in the solar heat collector 19 is input into the U-shaped heat exchange tube 1 of the heat storage pool 7 through the water inlet tube 6, the cooling water with the heat energy is replaced, and the cooling water returns to the solar heat collector 19 through the water return tube;
2. when the solar thermal collector 19 is required to directly supply heat, the thermal collector temperature sensor 20 transmits a signal to the controller 16, the valve A11 and the water pump B14 of the controller 16 are opened, the valve B12 and the water pump A13 are closed, the solar thermal collector 19 directly supplies heat to the radiator 17, and the cooled water returns to the solar thermal collector 19 to be continuously heated;
3. when the heat storage tank 7 is required to heat, the valve A11, the valve B12 and the water pump A13 are closed, the water pump B14 is opened, and the heat energy stored in the heat storage tank 7 is taken out to directly heat the indoor radiator 17. The cooled water returns to the heat storage pool 7 to be heated continuously.
In the same working principle, the solar cross-season soil energy storage and heating system disclosed by the invention works by using air as a heat transfer carrier, as shown in fig. 11.
1. If energy storage is needed, when the temperature of the upper end outlet of the solar heat collector 19 reaches a set value, the heat collector temperature sensor 20 transmits a signal to the controller 16, the air valve A21, the air valve C25, the air valve D30, the air valve E28 and the pipeline pump B24 are controlled to be closed, the air valve B22 and the pipeline pump A23 are controlled to be opened, the air with the surplus heat of the solar heat collector 19 is input into the soil heat storage pool 7 through the air inlet pipe 26, the air with the heat energy is discharged, and the air returns to the solar heat collector 19 through the air. In winter, if the air with the residual heat needs to be put into the room, the air valve D30 is opened, and the residual heat air is put into the room through the air filter 29. In summer, the air valve E28 is opened without using waste heat air, and the hot air is directly exhausted to the outside.
2. When the solar heat collector 19 is required to directly supply heat, the heat collector temperature sensor 20 transmits a signal to the controller 16, the air valve B22, the air valve C25 and the pipeline pump A23 are controlled to be closed, the air valve A21 and the pipeline pump B24 are controlled to be opened, and the solar heat collector 19 directly supplies hot air to the radiator 17. The air valve D30 is opened and the solar collector 19 is replenished with air through the air filter 29.
3. When the heat storage tank 7 is required to supply heat, the air valve A21, the air valve B22 and the pipeline pump A23 are closed, the air valve C25 and the pipeline pump B24 are opened, heat energy stored in the heat storage tank 7 is taken out to directly supply heat to the radiator 17, and the heat storage tank 7 is supplemented with air through the air filter 29.
Claims (10)
1. A solar energy seasonal soil energy storage heating system comprises a solar heat collector (19) arranged on a heating building (18), a radiator (17) arranged in the heating building (18), a heat storage pool (7) arranged below the ground surface, a transmission pipeline for communicating the solar heat collector with the heat storage pool, the heat storage pool with the heat storage pool, and a heat transfer carrier arranged in the transmission pipeline; the method is characterized in that: the heat storage pool (7) is composed of heat exchange wells (2) which are radially distributed from the center, U-shaped heat exchange tubes (1) are arranged in the heat exchange wells (2), the upper ends of the U-shaped heat exchange tubes (1) are connected in series by virtue of underground collecting tubes (4), and the depth of each heat exchange well (2) is 30-50 m.
2. The solar energy cross-season soil energy storage heating system according to claim 1, wherein: the heat exchange wells (2) are arranged in a distance-variable mode by gradually increasing the distance from the center to the outside, and the heat exchange wells (2) are distributed on the end points or the side length of a plurality of concentric regular polygons.
3. The solar energy cross-season soil energy storage heating system according to claim 2, wherein: the regular polygon is a regular hexagon, the radius D of the regular hexagon at the innermost layer is 1-1.5m, the difference value between the radius of the Nth layer and the radius of the Nth-1 layer of the regular hexagons sequentially arranged from inside to outside is D + (N-1) D, wherein D is 0.2-0.3m, N is more than or equal to 1, and N is a positive integer; the heat exchange wells (2) and the two heat exchange wells (2) of the adjacent layers are arranged in an equilateral mode.
4. The solar energy cross-season soil energy storage heating system according to claim 1, wherein: the U-shaped heat exchange tubes (1) are outwards arranged from the center and form a U-shaped heat exchange tube series group 6-7, all the U-shaped heat exchange tube series groups are radially distributed from the center, and the outermost U-shaped heat exchange tubes (1) are arranged in parallel.
5. The solar energy cross-season soil energy storage heating system according to claim 4, wherein: the center end of the underground collecting pipe (4) is communicated with the water inlet pipe (6); the outermost U-shaped heat exchange tube (1) is connected in parallel and communicated with a water return tube (8).
6. The solar energy cross-season soil energy storage heating system according to claim 1, wherein: the heat storage pool (7) is paved with a heat insulation layer (3), the thickness of the heat insulation layer (3) is more than 30cm, and the thickness of a soil layer paved on the heat insulation layer (3) is 0.7-1 m.
7. The solar energy cross-season soil energy storage heating system according to claim 1, wherein: a central temperature measuring well (5) is arranged in the center of the heat storage pool (7), a heat storage pool temperature sensor (15) is arranged in the central temperature measuring well (5), a peripheral temperature measuring well (9) is arranged on the periphery of the heat storage pool (7), a heat storage pool temperature sensor (15) is arranged in the peripheral temperature measuring well (9), and the peripheral temperature measuring well (9) and two adjacent peripheral heat exchange wells (2) are arranged in an equilateral mode; a heat collector temperature sensor (20) is arranged in the solar heat collector (19).
8. The solar energy cross-season soil energy storage heating system according to claim 7, wherein: the central temperature measuring well (5) and the peripheral temperature measuring well (9) are respectively internally provided with temperature measuring points, each temperature measuring point comprises an upper measuring point (a), a middle measuring point (b) and a lower measuring point (c), the lower measuring point (c) is arranged 1-1.5m above the bottom of the U-shaped heat exchange tube (1), the upper measuring point (a) is arranged 0.5-1m below the heat insulation layer (3), and the middle measuring points (b) are arranged 1-3.
9. A solar energy cross-season soil energy storage heating system according to claim 5 or 7, wherein: when the heat transfer carrier is water,
the heating system comprises a valve B (12) and a water pump A (13) which are communicated with a solar heat collector (19) and a U-shaped heat exchange tube (1), a valve A (11) and a water pump B (14) which are communicated with the solar heat collector (19) and a radiator (17), a water pump B (14) which is communicated with the radiator (17) and the U-shaped heat exchange tube (1), a water inlet pipe (6) and a water return pipe (8) which are connected with each other and are embedded with a collecting pipe (4), a controller (16) which is arranged in a heating building (18), a heat collector temperature sensor (20) and a heat storage pool temperature sensor (15) which are respectively connected with the controller (16).
10. A solar energy cross-season soil energy storage heating system according to claim 1 or 7, wherein: when the heat transfer carrier is air,
the heating system comprises an air valve B (22) and a pipeline pump (23) which are communicated with a solar heat collector (19) and a U-shaped heat exchange tube (1), an air valve A (21) and a pipeline pump B (24) which are communicated with the solar heat collector (19) and a radiator (17), an air valve C (25) and a pipeline pump B (24) which are communicated with the radiator (17) and the U-shaped heat exchange tube (1), an air inlet pipe (26) and an air outlet pipe (27) which are connected with the U-shaped heat exchange tube (1), a controller (16) arranged in a heating building (18), a heat collector temperature sensor (20) and a heat storage pool temperature sensor (15) which are respectively connected with the controller (16), an air valve D (30) and an air valve E (28) which are connected with the air outlet pipe (27), an air filter (29) is arranged in the heating building (18), and the air filter (29) is connected with an air valve D (30).
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| CN201920709068.5U CN210035682U (en) | 2019-05-17 | 2019-05-17 | Solar energy seasonal soil energy storage heating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043944A (en) * | 2019-05-17 | 2019-07-23 | 河北聚日新能源科技有限公司 | A kind of solar cross-season soil energy storage heating system |
| CN111928319A (en) * | 2020-07-29 | 2020-11-13 | 天津大学 | Full-cylinder type heat storage and heat exchange integrated well |
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2019
- 2019-05-17 CN CN201920709068.5U patent/CN210035682U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043944A (en) * | 2019-05-17 | 2019-07-23 | 河北聚日新能源科技有限公司 | A kind of solar cross-season soil energy storage heating system |
| CN110043944B (en) * | 2019-05-17 | 2024-01-26 | 河北聚日新能源科技有限公司 | Solar energy cross-season soil energy storage heating system |
| CN111928319A (en) * | 2020-07-29 | 2020-11-13 | 天津大学 | Full-cylinder type heat storage and heat exchange integrated well |
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