Novel solar energy and geothermal energy combined heating double-layer coil pipe wood wall body

Abstract

The utility model discloses a novel solar energy and geothermal energy combined heating double-layer coil pipe wooden wall body, which is characterized in that a double-layer water pipe is additionally arranged in the structure of a wooden building wall body, a solar water heater is utilized to generate hot water, the hot water is introduced into a water passing pipe on the inner layer of the wooden building wall, and the wooden building is heated in winter. An underground circulating water low-grade heat source is used for supplying heat to circulating water and introducing the circulating water into an outer-layer water pipe of the wall body of the timberwork building, so that heat preservation is performed on the wall body, namely, the outdoor temperature is increased, and the energy-saving effect is achieved. The building wall is characterized in that the structure of the building wall sequentially comprises cork, a waterproof coiled material, an OSB (Oriented Strand Board) 1, a cold water through pipeline, a thermal insulation material 1, an OSB 2, a stud column, thick thermal insulation cotton, an OSB 3, a reflecting film, a thermal insulation material 2, a hot water through pipeline and a gypsum board from outside to inside.

Description

Technical Field

[0001] The invention patent relates to the field of building energy conservation, and in particular to a new type of double-layer coil wood wall for combined heating using solar energy and geothermal energy. Background Art

[0002] At present, my country's energy structure mainly uses fossil fuels such as coal. In recent years, the air pollution problem represented by haze caused by the burning of fossil energy has had a great impact on people's health and quality of life. Therefore, renewable clean energy heating technology has received increasing attention. Solar energy and geothermal energy, as renewable clean energy, have the advantages of wide distribution, stability and reliability, and have broad development prospects. In recent years, in order to achieve sustainable green development of buildings, the use of renewable energy such as solar energy, wind energy, geothermal energy, etc. has become the focus of research in the field of building energy conservation in my country, including research on solar energy and geothermal energy heating.

[0003] With the improvement of living standards, people's requirements for the quality of living environment are getting higher and higher, which leads to a sharp increase in building energy consumption. In actual engineering, if only shallow geothermal energy resources are used for winter heating, it will occupy a large area, and the long-term imbalance of energy extraction and release will cause cold and heat accumulation problems. In addition, the low-quality thermal energy water source pumped up is far from meeting the needs of building heating. It is necessary to use ground source heat pump technology to heat the low-quality thermal energy water to a higher temperature, thereby wasting a lot of electricity. When using shallow geothermal energy for heating in winter, it is necessary to occupy a large area of ​​land for equipment installation and lay a large number of pipes for heat exchange of water sources.

[0004] As an important part of the building envelope structure, the thermal conductivity of the wall will directly affect the energy consumption of the building due to heating and cooling in winter and summer. In recent years, with the research and promotion of ultra-low energy consumption buildings, the energy-saving wall structure of new buildings has been continuously innovated. Passing water inside the wall is a new type of building structure. The water pipe is buried in the wall, and the circulating water flowing inside the water pipe is used for heat transfer. This structure is similar to radiant heating / cooling. The cold water pipe is buried in the wall near the outdoor side, and constant temperature cold water exchanged by groundwater is passed in. Geothermal energy can be used to reduce the impact of the outdoor climate environment on the indoor environment of the building, thereby reducing the energy consumption of the building; while the hot water pipe is buried in the wall near the indoor side, and the hot water is heated by solar energy and passed into the hot water pipe to heat the indoor space, meeting the building's winter heating needs and improving the indoor thermal comfort of the building.

[0005] Wood structure buildings refer to buildings that use wood to form load-bearing components. Compared with buildings made of other materials, wood structure buildings have the following characteristics: (1) renewable raw materials; (2) heat preservation and energy saving; (3) flexible design and convenient renovation; (4) short construction period and small impact on the environment; (5) good fire resistance and earthquake resistance; (6) good external benefits. Therefore, at this stage, my country's development of wood structure buildings is on the rise.

[0006] Generally speaking, the hot water produced by solar water heaters during sunny days in winter can meet the heating needs of wooden structures, and the electric energy stored in solar photovoltaic panels during the day can be used to heat the hot water in the hot water tank to heat the building at night. However, how to continuously heat wooden structures on rainy days and when the amount of hot water produced is insufficient is still a technical gap in the research of this field. Summary of the invention

[0007] The technical problem to be solved by the present invention is how to overcome the existing technical defects and provide a double-layer coil wooden wall that can enhance the thermal insulation effect of the wooden building envelope, reduce the load and energy consumption of the wooden building, effectively utilize constant temperature groundwater to insulate the interior, and utilize the hot water generated by the solar water heater to heat the interior.

[0008] To this end, the technical solution of the present invention to achieve the above-mentioned purpose is:

[0009] A new type of double-layer coiled wooden wall for combined solar and geothermal heating, mainly using solar thermal technology, to pass hot water generated by solar energy into the inner water pipes of the wooden structure wall through water pipes for heating. At the same time, low-temperature cold water generated by geothermal energy is passed into the outer water pipes of the wooden structure wall for insulation.

[0010] The present invention proposes a novel double-layer coiled wood wall for combined solar and geothermal heating, which comprises, from outside to inside, cork (13), waterproof coiled material (12), OSB board 1 (11), cold water pipe (10), thermal insulation material 1 (9), OSB board 2 (8), wall stud column (7), thick thermal insulation cotton (6), OSB board 3 (5), reflective film (4), thermal insulation material 2 (3), hot water pipe (2) and gypsum board (1).

[0011] Furthermore, by setting the structural form of the exterior wall of the wooden structure building, the thermal insulation performance of the exterior wall of the wooden structure building can be maximized while ensuring safety and economy, and the heat transfer coefficient of the wall can be reduced, thereby reducing the load and energy consumption of the building, while ensuring the thermal comfort of indoor personnel.

[0012] Furthermore, the water pipes in the wall of the wooden structure building are arranged in a serpentine shape.

[0013] Furthermore, in order to utilize solar energy with maximum efficiency, solar water heaters and solar photovoltaic panels are placed on top of the wooden structure.

[0014] Furthermore, the hot water produced by the solar collector is directly fed into the hot water tank. The water pipes in the external walls in all directions are independent pipes, and the water supply pipes are connected to the water distributor, which is then connected to the hot water tank. The return pipe is directly fed into the hot water tank, and then fed into the solar water heater through a circulation pump for circulation.

[0015] Furthermore, a controller is installed at the hot water tank, and a temperature sensor of the controller is set at 40°C. When the water temperature of the hot water tank is lower than 40°C, the controller will control the DC / AC inverter and the electric heater to start.

[0016] Furthermore, the cold water generated by the groundwater circulation system is heat exchanged with the system circulating cold water and then passed into the cold water tank. The cold water pipes on the external walls in all directions are independent pipes, the water supply pipes are connected to the water distributor, the water distributor is connected to the cold water tank, and the return pipe is connected to the water collector. The groundwater is sent to the recharging well for circulation through a circulation pump.

[0017] Preferably, the heat-insulating material filled between the water pipes is foamed polyurethane.

[0018] Compared with the previous technology, the present invention has the following advantages:

[0019] (1) It can reduce the load and energy consumption of wooden structure buildings. The present invention designs the structural form of the wall of the wooden structure building and installs water pipes inside the wall, which effectively reduces the heat transfer coefficient of the building and further reduces the building load and energy consumption while meeting the heating demand.

[0020] (2) The system makes full use of renewable energy - solar energy and geothermal energy, so that winter heating of pastoral buildings no longer depends solely on firewood or relatively expensive electricity. The system can generate certain social, ecological and economic benefits and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 .Structural diagram of the exterior wall of the present invention;

[0022] Figure 2 . Flowchart of the system operation of the present invention

[0023] In the figure: 1. Gypsum board; 2. Hot water pipe; 3. Insulation material 2; 4. Reflective film; 5. OSB board 3; 6. Thick insulation cotton; 7. Wall column; 8. OSB board 2; 9. Insulation material 1; 10. Cold water pipe; 11. OSB board 1; 12. Waterproof membrane; 13. Cork. DETAILED DESCRIPTION

[0024] In conjunction with the accompanying drawings, the wall of the present invention is further described below;

[0025] As attached Figure 1 The novel double-layer coiled wood wall for combined solar and geothermal heating is shown, and its structure from outside to inside is cork (13), waterproof coiled material (12), OSB board 1 (11), cold water pipe (10), thermal insulation material 1 (9), OSB board 2 (8), wall column (7), thick thermal insulation cotton (6), OSB board 3 (5), reflective film (4), thermal insulation material 2 (3), hot water pipe (2) and gypsum board (1).

[0026] The thickness of the cork (13) is 40 mm, and the specifications are 1500 mm×1500 mm×40 mm; the thickness of the waterproofing coil (12) is 2 mm; the thickness of the OSB board 2 (8) and the OSB board 3 (5) are both 9 mm; the material of the wall column (7) is SPF profile, and the specifications are 38×140 mm; the reflective film (4) is aluminum film; the thickness of the gypsum board (1) is 12 mm. The above materials are all existing products on the market.

[0027] The water pipes in the building wall are arranged in a serpentine shape. The water pipe material is PERT pipe, with a pipe spacing of 60mm and a pipe diameter of 20mm.

[0028] The thermal insulation material filled in the gaps of the water pipes is foamed polyurethane.

[0029] The above structure of the wooden building wall can effectively reduce its heat transfer coefficient, thereby reducing the load and energy consumption of the wooden building. When water is passed into the wall, the outer layer of cold water can isolate the heat exchange between the wooden building wall and the outside world, and the inner layer of hot water can provide heating to the room through radiation, thereby better maintaining the room temperature and ensuring the thermal comfort of the indoor occupants.

[0030] As attached Figure 2As shown in the figure, the operation process of a new type of double-layer coil wooden wall for combined solar and geothermal heating is as follows: on a sunny day in winter, the hot water generated by the solar water heater is sent to the hot water tank, then sent to the water distributor through the water supply pump and then transported to the walls in all directions to heat the wooden structure; at night, due to the insufficient amount of hot water supplied by the hot water tank, the electric energy generated by the solar photovoltaic panel is used to heat the hot water in the hot water tank to heat the wooden structure, thereby maintaining a constant indoor temperature in winter. The electricity generated by the solar photovoltaic panel is stored in the battery. When the temperature sensor on the controller measures that the temperature of the hot water tank is lower than the set temperature, the controller will control the DC / AC inverter to convert the direct current stored in the battery into alternating current and heat the water in the hot water tank, so that the water temperature of the hot water tank reaches the set requirement, thereby achieving continuous heating; at the same time, the constant temperature cold water generated by geothermal energy is continuously and uninterruptedly passed into the water pipe outside the wooden structure wall to insulate the wall.

[0031] A controller is installed at the hot water tank. The controller uses the STC89C52RC microcontroller as the control core and adopts the digital temperature sensor DSI8820 to measure the temperature. The measured temperature is fed back to the microcontroller in the form of a signal, and the microcontroller controls the DC / AC inverter and the start and stop of the electric heater.

[0032] There are many specific implementations of the present invention, and all technical solutions formed by equivalent replacement or equivalent change fall within the scope of protection required by the present invention.

Claims

1. A new type of double-layer coil wood wall for combined solar and geothermal heating, characterized by: The wooden wall is structured from outside to inside in order: cork (13), waterproof coiled material (12), OSB board 1 (11), cold water pipe (10), thermal insulation material 1 (9), OSB board 2 (8), wall stud column (7), thick thermal insulation cotton (6), OSB board 3 (5), reflective film (4), thermal insulation material 2 (3), hot water pipe (2) and gypsum board (1).

2. According to claim 1, a new type of double-layer coil wood wall for combined solar and geothermal heating, characterized in that: The water pipes in the wall are arranged in a serpentine shape.

3. The novel double-layer coil wood wall for combined solar and geothermal heating according to claim 1 is characterized by: The water pipes are evenly distributed.

4. The novel double-layer coil wood wall for combined solar and geothermal heating according to claim 1 is characterized by: The thermal insulation material 1 and the thermal insulation material 2 are foamed polyurethane.

Images