Overhead hot air type heat storage floor suitable for rural areas

Abstract

The utility model relates to the technical field of building energy conservation and heat supply, in particular to an overhead hot air type heat storage floor suitable for rural areas, which comprises a heat storage layer, a hot water coil pipe coiled in the heat storage layer, an aluminum plate layer arranged above the heat storage layer, an overhead layer arranged above the aluminum plate layer, and a wood plate layer laid above the overhead layer. Air supply boxes and first air supply pipes are erected on the wood board layer at intervals in a staggered mode and both communicate with the empty space. Circulating heat of the hot water coil pipe exchanges heat with the heat storage layer, one part of the heat is stored in the heat storage layer, the other part of the heat exchanges heat with the aluminum plate layer, and the heated aluminum plate layer conducts convection heat exchange with air in the empty space. The temperature nonuniformity of the floor is effectively improved through heat flow conduction among the heat storage layer, the empty space layer and the wood board layer; and by controlling opening and closing of the air supply box, indoor air flow is controlled, circulation from the indoor space to the empty space is completed, and the heat requirements of farmers in different time periods are met through different heat exchange efficiencies.

Description

Technical Field

[0001] The utility model relates to the technical field of building energy-saving heating, in particular to an overhead hot air type heat storage ground suitable for rural areas. Background Art

[0002] my country is rich in solar energy resources, which are clean and renewable, but are easily affected by outdoor climate conditions, intermittent, unstable, and have low solar energy utilization. Under the continuous promotion of clean heating transformation in my country, air source heat pump technology has been widely used due to its efficient energy conversion and environmentally friendly advantages. However, compared with farmers' original heating equipment, its operating cost is relatively high, which hinders the promotion of the system in rural areas. Therefore, in order to make full use of solar energy resources and reduce the operating cost of air source heat pumps, it is necessary to fully combine solar energy or air source heat pump technology with building thermal storage components, convert unstable solar energy resources into stable heat, and enable the operation of air source heat pumps to achieve peak-to-valley shifts in electricity prices. In addition, through a large number of surveys and studies, it is known that farmers' demand for indoor thermal environment is dynamic, and the heat load demand is different in different periods, but at this stage, there is little research on thermal storage components that fully combine farmers' dynamic heat demand.

[0003] After searching, it was found that: Application No. 200910310400.1 discloses a solar pebble heat storage heating system, including a pebble heat storage layer, a grid plate, and an overhead air duct. The pebble heat storage layer is located under the indoor floor of the house, and a grid plate is provided at the bottom of the heat storage layer. An overhead air duct is laid between the grid plate and the ground. The heat source is a solar air collector, and solar energy can also be used at night, reducing the consumption of conventional energy and reducing the emission of carbon dioxide. Application No. 201020164969.X discloses a raw soil heat preservation and heat storage ground, which mainly uses heavy soil bricks as the heat storage layer, and the leveling layer is cement and plant fiber reinforced lightweight clay. Economical and easy-to-obtain materials are used, so that the cement and plant fiber reinforced lightweight clay and heavy soil bricks play a dual role of heat preservation and heat storage on the ground, reducing the temperature change range. Application No. 201120010384.7 invented a solar thermal storage air duct for air preheating. The system uses the heat collecting surface to absorb solar radiation through the glass cover during the day, and transmits it to the thermal storage layer for heat storage and heating the air in the duct, thereby effectively increasing the inlet temperature of the heat pump unit and improving the energy efficiency of the heat pump unit. Application No. 201510209380.4 and Application No. 201520269361.6 respectively invented a rural active solar thermal storage ground system and a thermal storage ground for storing solar energy across seasons. The thermal storage ground consists of a leveling layer, a moisture-proof layer, a thermal insulation layer, a clay layer, a thermal storage and heat exchange coil layer, a sand layer, and a finishing layer from bottom to top, which can solve the problem of unstable solar heating.

[0004] However, there are still some shortcomings and deficiencies in the above patents:

[0005] (1) The proposed heat storage component technologies do not take into account the dynamic heat demand of farmers. Although the selected materials have certain heat storage performance, when farmers have a large demand for heat load, such as when getting up in the morning, the heat storage components cannot meet the farmers' instant heating requirements.

[0006] (2) The existing heat storage components use coils as heat sources, which may lead to uneven ground temperature distribution due to factors such as the distance between coils.

[0007] To this end, the utility model provides an overhead hot air type heat storage ground suitable for rural areas to solve the above-mentioned problems. Utility Model Content

[0008] The utility model aims to solve the problems existing in the prior art and proposes an overhead hot air type heat storage ground suitable for rural areas.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] An overhead hot air type heat storage floor suitable for rural areas comprises a heat storage layer, a hot water coil is placed in the heat storage layer, an aluminum plate layer is arranged above the heat storage layer, an overhead layer is arranged above the aluminum plate layer, a wooden board layer is laid above the overhead layer, air supply boxes and a first air supply pipe are arranged on the wooden board layer in an alternating manner, and the first air supply pipe and the air supply box are both connected to the overhead layer.

[0011] In a further embodiment of the present scheme, the air supply box is provided with an air inlet and a first air inlet pipe, a second air inlet pipe and a second air supply pipe extending into the overhead layer are inserted on the wooden board layer, the first air supply pipe and the second air supply pipe are connected, and the air inlet is connected with the second air inlet pipe.

[0012] In a further embodiment of the present solution, the pipe opening of the first air inlet pipe is arranged at the upper right of the wooden board layer, and the first air supply pipe is arranged at the left side of the wooden board layer.

[0013] In a further embodiment of the present solution, a plurality of air outlets are provided on the first air supply pipe at intervals.

[0014] In a further embodiment of the present solution, air valves are provided in both the first air supply pipe and the first air inlet pipe.

[0015] In a further embodiment of the present solution, filtering devices are embedded in both the second air supply pipe and the first air inlet pipe.

[0016] In a further embodiment of the present solution, the overhead layer includes a plurality of overhead brackets arranged on the aluminum plate layer, and the wooden board layer is laid on the upper ends of the overhead brackets.

[0017] In a further embodiment of the present solution, a plurality of guide ribs are arranged at intervals and staggered between a plurality of overhead brackets on the surface of the aluminum plate layer.

[0018] In a further embodiment of the present solution, a cement mortar layer is provided between the heat storage layer and the aluminum plate layer.

[0019] In a further embodiment of the present solution, the thickness of the heat storage layer is between 30 and 50 cm.

[0020] Compared with the prior art, the utility model provides an overhead hot air type heat storage ground suitable for rural areas, which has the following beneficial effects:

[0021] When the indoor temperature is lower than the required temperature before getting up in the morning and before going to bed at night, the air supply box is turned on, and the indoor air is drawn into the overhead layer and forced to convect with the aluminum plate layer, which increases the heat exchange efficiency between the two. At this time, the hot air in the overhead layer enters the first air supply duct and is then sent to the room, which can quickly increase the indoor temperature and meet the farmers' high heat load needs at this time.

[0022] When the indoor temperature is higher than the required temperature during the noon to afternoon period while sleeping at night, the air supply box is closed and the indoor air circulation stops. The heat exchange process is only the heat storage layer and the aluminum plate layer, the aluminum plate layer and the air in the overhead layer, and the overhead layer and the wooden board layer. This stabilizes the temperature of the wooden board within a certain temperature range and keeps the temperature of the wooden board relatively uniform, thereby meeting the demand for small heat load.

[0023] Through the heat flow conduction between the heat storage layer, the overhead layer and the wooden board layer, the uneven temperature of the floor is effectively improved, and a heat source can also be provided for the instant heating needs of farmers; and by controlling the opening and closing of the air supply box, the indoor gas flow is controlled and the circulation from the indoor to the overhead layer is completed, so that the heat needs of farmers in different time periods can be met with different heat exchange efficiencies to meet the farmers' instant heating requirements.

[0024] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic cross-sectional view of the overhead hot air type heat storage ground of the utility model.

[0026] Figure 2 This is a schematic diagram of the air duct assembly of the utility model.

[0027] In the figure: 1. waterproof layer; 2. thermal insulation layer; 3. heat storage layer; 4. hot water coil; 5. cement mortar layer; 6. aluminum plate layer; 7. overhead bracket; 8. guide ribs; 9. wooden board layer; 10. second air inlet duct; 11. second air supply duct; 12. filter device; 13. air inlet; 14. air supply box; 15. first air inlet duct; 16. air valve; 17. return air duct; 18. first air supply duct. DETAILED DESCRIPTION

[0028] The following will be combined with the attached embodiment of the utility model Figure 1-2 , the technical solutions in the embodiments of the utility model are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0029] In order to solve the problems existing in the prior art, the present embodiment provides an overhead hot air type heat storage floor suitable for rural areas, including a heat storage layer 3, a hot water coil 4 is placed inside the heat storage layer 3, an aluminum plate layer 6 is provided above the heat storage layer 3, an overhead layer is provided above the aluminum plate layer 6, a wooden board layer 9 is laid above the overhead layer, and air supply boxes 14 and a first air supply pipe 18 are arranged on the wooden board layer 9 in an alternating manner, and the first air supply pipe 18 and the air supply box 14 are both connected to the overhead layer.

[0030] Principle details of this embodiment:

[0031] An overhead hot air type heat storage ground suitable for rural areas includes a heat storage layer 3, which is filled with sand and pebbles. Sand and pebbles are not only easy to obtain, but also cheap, and more cost-effective for farmers; the heat storage layer 3 is covered with an insulation layer 2 and a waterproof layer 1 in sequence to prevent heat leakage and water seepage; an aluminum plate layer 6 is arranged above the heat storage layer 3, an overhead layer is arranged above the aluminum plate layer 6, a wooden board layer 9 is laid above the overhead layer, and air boxes 14 and first air supply pipes 18 are arranged alternately on the wooden board layer 9, and the first air supply pipe 18 and the air supply box 14 are both connected to the overhead layer. A hot water coil 4 is placed inside the heat storage layer 3, and the heat source of the hot water coil 4 can be a solar thermal collection system or an air source heat pump unit. The heat circulated by the hot water coil 4 is exchanged with the heat storage layer 3, part of the heat is stored in the heat storage layer 3, and part of the heat is exchanged with the aluminum plate layer 6, and the heated aluminum plate layer 6 is subjected to convection heat exchange with the air in the overhead layer.

[0032] When farmers need a large heat load when getting up in the morning and before going to bed at night and the indoor temperature is lower than the required temperature, the air supply box 14 is turned on, and the indoor air is drawn into the overhead layer and forced to convect with the aluminum plate layer 6, thereby increasing the heat exchange efficiency between the two. At this time, the hot air in the overhead layer enters the first air supply duct 18 and is then sent to the room, which can quickly increase the indoor temperature and meet the farmers' large heat load needs at this time.

[0033] When sleeping at night or during the noon to afternoon period, the solar radiation is good, the heat load required by the farmers is small, and the indoor temperature is higher than the required temperature, the air supply box 14 is closed, the indoor air flow stops circulating, and the heat exchange process is only the heat storage layer 3 and the aluminum plate layer 6 heat exchange, the aluminum plate layer 6 and the air in the overhead layer heat exchange, and the overhead layer and the wooden board layer 9 heat exchange, so that the temperature of the wooden board is stabilized within a certain temperature range and the temperature of the wooden board is kept relatively uniform, thereby meeting the demand for small heat load.

[0034] Through the heat flow conduction between the heat storage layer 3, the overhead layer and the wooden board layer 9, the uneven temperature of the floor is effectively improved, and a heat source can also be provided for the instant heating needs of farmers; and by controlling the opening and closing of the air supply box 14, the indoor gas flow is controlled and the circulation from the indoor to the overhead layer is completed, so that the heat needs of farmers in different time periods can be met with different heat exchange efficiencies.

[0035] In a further embodiment of the present scheme, an air supply box 14 is provided with an air inlet 13, a first air inlet duct 15, and a return air duct 17, a second air inlet duct 10 and a second air supply duct 11 extending into the overhead layer are inserted on the wooden layer 9, the first air supply duct 18 and the second air supply duct 11 are connected, the air inlet 13 is connected with the second air inlet duct 10, and the first air inlet duct 15 and the air inlet 13 are used as a bridge to set up a convection circulation channel between the indoor air and the overhead layer to complete the gas circulation.

[0036] In a further embodiment of the present scheme, the mouth of the first air inlet duct 15 is arranged at the upper right of the wooden board layer 9, and the first air supply duct 18 is arranged on the left side of the wooden board layer 9. The two are staggered to prevent the hot air circulated from the overhead layer from being directly sucked into the air supply box 14 and re-entering the overhead layer, so that the hot air exhaust outlet stays in the indoor space and the time is increased to improve the warming effect.

[0037] In a further embodiment of the present solution, a plurality of air outlets are provided at intervals on the first air supply pipe 18 to expand the diffusion range of hot air and improve the indoor heating efficiency.

[0038] In a further embodiment of the present scheme, an air valve 16 is provided in the first air supply duct 18 and the first air inlet duct 15, which is used to control the opening and closing of the first air supply duct 18 and the first air inlet duct 15 to prevent the air flow from still flowing or leading to backflow as required when the air supply box 14 is closed; the opening and closing of the air valve 16 and the air supply box 14 are controlled by the indoor temperature, that is, an indoor temperature threshold is set, and when the indoor temperature reaches this value, the air valve 16 and the air supply box 14 are closed, and automatic adjustment is more convenient, and it is adaptively adjusted with the temperature instead of continuous operation, thereby saving electric energy for the continuous operation of the fan in the air supply box 14.

[0039] In a further embodiment of the present scheme, a filter device 12 is embedded in both the second air supply pipe 11 and the first air inlet pipe 15 to filter the air flowing in the room, reduce dust and debris in the air, and cooperate with the gas circulation to purify the air.

[0040] In a further embodiment of the present scheme, the overhead layer includes a plurality of overhead brackets 7 arranged on the aluminum plate layer 6, and the wooden board layer 9 is laid on the upper end of the overhead brackets 7 (there is a layer of aluminum plate with good thermal conductivity between the wooden board layer 9 and the overhead layer to increase the stress-bearing surface of the wooden board layer 9 and improve the stability and firmness of the installation of the wooden board layer 9). The wooden board layer 9 is supported by the overhead brackets 7 to form a cavity between the aluminum plate layer 6 and the wooden board layer 9 for gas circulation and heat exchange.

[0041] In a further embodiment of the present scheme, a plurality of guide ribs 8 are staggeredly arranged on the surface of the aluminum plate layer 6 between a plurality of overhead brackets 7. The guide ribs 8 in the aluminum plate layer 6 help to evenly distribute the air in the overhead layer, maintain a relatively uniform temperature of the wooden board, and thus make the indoor temperature more uniform.

[0042] In a further embodiment of the present solution, a cement mortar layer 5 is provided between the heat storage layer 3 and the aluminum plate layer 6 to reinforce the supporting base surface, and at the same time, the heat storage layer 3 is capped to improve the heat storage density and capacity.

[0043] In a further embodiment of the present solution, the thickness of the heat storage layer 3 is between 30 and 50 cm, ensuring that the heat storage and release process of the heat storage ground matches the dynamic heat demand of the farmers.

[0044] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An overhead hot air type heat storage floor suitable for rural areas, comprising a heat storage layer (3), wherein a hot water coil (4) is placed inside the heat storage layer (3), characterized in that: An aluminum plate layer (6) is provided above the heat storage layer (3), an overhead layer is provided above the aluminum plate layer (6), a wooden board layer (9) is laid above the overhead layer, air supply boxes (14) and first air supply pipes (18) are arranged on the wooden board layer (9) in an alternating manner, and both the first air supply pipe (18) and the air supply box (14) are connected to the overhead layer.

2. The overhead hot air type heat storage ground suitable for rural areas according to claim 1, characterized in that: The air supply box (14) is provided with an air inlet (13) and a first air inlet pipe (15); a second air inlet pipe (10) and a second air supply pipe (11) extending into the overhead layer are inserted into the wooden board layer (9); the first air supply pipe (18) and the second air supply pipe (11) are connected; and the air inlet (13) and the second air inlet pipe (10) are connected.

3. The overhead hot air type heat storage ground suitable for rural areas according to claim 2, characterized in that: The outlet of the first air inlet pipe (15) is arranged at the upper right of the wooden board layer (9), and the first air supply pipe (18) is arranged at the left side of the wooden board layer (9).

4. The overhead hot air type heat storage ground suitable for rural areas according to claim 1, characterized in that: The first air supply pipe (18) is provided with a plurality of air outlets at intervals.

5. The overhead hot air type heat storage ground suitable for rural areas according to claim 1, characterized in that: Air valves (16) are provided in both the first air supply pipe (18) and the first air inlet pipe (15).

6. The overhead hot air type heat storage ground suitable for rural areas according to claim 1, characterized in that: A filter device (12) is embedded in both the second air supply pipe (11) and the first air inlet pipe (15).

7. The overhead hot air type heat storage ground suitable for rural areas according to claim 1, characterized in that: The overhead layer comprises a plurality of overhead supports (7) arranged on an aluminum plate layer (6), and a wooden board layer (9) is laid on the upper ends of the overhead supports (7).

8. The overhead hot air type heat storage ground suitable for rural areas according to claim 7, characterized in that: A plurality of flow-guiding ribs (8) are arranged in an interlaced manner on the surface of the aluminum plate layer (6) and located between a plurality of overhead brackets (7).

9. The overhead hot air type heat storage ground suitable for rural areas according to claim 1, characterized in that: A cement mortar layer (5) is provided between the heat storage layer (3) and the aluminum plate layer (6).

10. The overhead hot air type heat storage ground suitable for rural areas according to claim 1, characterized in that: The thickness of the heat storage layer (3) is between 30 and 50 cm.

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