1. A thermal storage passive solar house, comprising:

a housing having a first wall and a second wall;

and the heat pipe is filled with a circulating working medium, the heat pipe comprises an evaporation section and a condensation section, the evaporation section is arranged on the outer side of the first wall body and used for absorbing solar radiation to heat the circulating working medium, and the condensation section is arranged inside the second wall body so as to release the heat of the circulating working medium into the second wall body.

2. The heat accumulating passive solar house according to claim 1, further comprising a light-transmitting cover provided outside the first wall for covering the evaporation section, and a sun visor or a photovoltaic panel provided above the light-transmitting cover.

3. The thermal storage passive solar house according to claim 1, wherein the first wall is a front wall of the house body and the second wall is a side wall and/or a rear wall of the house body.

4. The heat accumulating passive solar house according to claim 3, wherein the heat pipe is L-shaped or arc-shaped, and the condensation section is provided in a side wall of the house body.

5. The thermal storage passive solar house according to claim 1, characterized in that the heat pipe is composed of an arrangement of a plurality of micro heat pipes.

6. The heat accumulating passive solar house according to claim 1, wherein the surface of the evaporation section is provided with a heat absorbing coating or heat collecting member.

7. The thermal storage passive solar house according to claim 1, wherein the second wall is a thermal storage wall.

8. The thermal storage passive solar house according to claim 7, wherein the thermal storage wall is an orthothermic wall or a phase change wall.

9. The thermal storage passive solar house according to any of claims 1-8, characterized in that the heat pipe extends obliquely upwards in a direction from the evaporation section towards the condensation section.

10. The thermal storage passive solar house according to claim 9, characterized in that the inclination angle of the heat pipes is 5 ° or more and less than 90 °.

Background

The proportion of the building energy consumption in China to the total energy consumption in China exceeds 20%, the total building area is huge, and the building energy conservation becomes a necessary trend in the building industry. In the solar energy utilization technology, solar energy photo-thermal utilization is a common application form, solar energy is fully utilized to reduce heating load, and the method is an effective way for realizing near-zero energy consumption of buildings. Through reasonable and efficient building thermal design, the solar energy can be collected, stored and distributed in winter by the building, the heating problem is solved, and the solar energy-saving building has the characteristics of no maintenance, convenience in operation, economy and energy conservation.

Typical passive solar house types widely used at present include a direct benefit type, an additional sunlight room type, a heat collecting and accumulating wall type and the like. The direct beneficial mode is that when the south window wall ratio of the building is too large, the heat loss of a room outdoors through a window at night is more serious, the daily fluctuation range of the room temperature is larger, and glare exists in the daytime. An additional sunlight room type needs to additionally arrange a glass compartment outside a building, so that the occupied space is large; and the heat storage design is weak, and the heat loss between the glass plates at night is serious, so the application scene is limited. The heat collection and storage wall type heat collector cannot meet the dual requirements of heat conduction in the daytime and heat preservation at night.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a heat storage passive solar house which is mainly used for indoor heating in winter. The invention uses the characteristics of large thermal diode and heat transfer coefficient of the heat pipe to decouple the functions of the inner and outer walls of the building, the outer wall is only used for heat preservation and solar heat collection, and the inner wall or the outer wall on the other side is used for heat storage and heat release. In the daytime, the solar radiation heat received by the outer wall of the building is transferred to the inner wall of the building or the outer wall on the other side and stored through the combination of the solar heat collection process and the heat conduction process of the heat pipe; at night, the heat pipe does not work, and the wall body in the room or the outer wall body on the other side releases the stored heat to the room to supply heat to the room. The invention has the characteristics of high solar energy utilization rate, obvious indoor temperature increase, small daily fluctuation of room temperature and the like, and is also suitable for other solar house applications facing to the wall.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the passive solar house of heat accumulation that this disclosed embodiment provided includes:

a housing having a first wall and a second wall;

and the heat pipe is filled with a circulating working medium, the heat pipe comprises an evaporation section and a condensation section, the evaporation section is arranged on the outer side of the first wall body and used for absorbing solar radiation to heat the circulating working medium, and the condensation section is arranged inside the second wall body so as to release the heat of the circulating working medium into the second wall body.

In some embodiments, the solar panel further comprises a light-transmitting cover and a sun-shading board or a photovoltaic board, wherein the light-transmitting cover is arranged on the outer side of the first wall body and used for covering the evaporation section, and the sun-shading board or the photovoltaic board is arranged above the light-transmitting cover.

In some embodiments, the first wall is a front wall of the house body, and the second wall is a side wall and/or a rear wall of the house body.

In some embodiments, the heat pipe is L-shaped or arc-shaped, and the condensation section is disposed in a side wall of the housing.

In some embodiments, the heat pipe is comprised of a plurality of micro heat pipe arrangements.

In some embodiments, a heat absorbing coating or a heat collecting member is provided on the surface of the evaporation section.

In some embodiments, the second wall is a thermal storage wall.

In some embodiments, the thermal storage wall is an antifebrile wall or a phase change wall.

In some embodiments, the heat pipe extends obliquely upward in a direction from the evaporation section toward the condensation section.

In some embodiments, the inclination angle of the heat pipe is greater than or equal to 5 ° and less than 90 °.

The invention has the characteristics and beneficial effects that:

1. the embodiment of the disclosure provides a heat storage passive solar house, which utilizes a high-efficiency heat transfer element heat pipe to decouple the functions of an internal and external enclosure structure of a building, an external wall is only used for heat preservation and solar heat collection, an internal wall is used for heat storage and heat release, solar radiation energy received by a south nontransparent enclosure structure is transferred to east and west walls in the daytime, compared with a conventional building, the internal surface area of the enclosure structure, except a floor, mainly releasing heat to the indoor space is increased from a south wall to the east and west walls, the heat diode performance of the heat pipe at night determines that the enclosure structure does not work, the enclosure structure is prevented from becoming a heat dissipation component, the east and west walls continuously release heat, and compared with the conventional building, the heat release time of the indoor space by the walls in one day is effectively prolonged.

2. The heat pipes adopted by the embodiment of the disclosure are L-shaped or arc-shaped as a whole, the planes of the evaporation sections and the condensation sections of the heat pipes are respectively arranged in two or three sequentially crossed walls, and can be tightly combined with the building wall, the number density and the area proportion of the heat pipes can be set according to the local meteorological resource conditions and the room heat supply requirements, and then the actual heat storage and release total amount of the wall is designed, the indoor thermal environment is improved, and the fossil energy consumption caused by heating in winter is reduced.

3. The light-transmitting cover adopted by the embodiment of the disclosure avoids direct convection heat exchange between the surface of the evaporation section of the high-temperature heat pipe and outdoor air, effectively reduces heat dissipated to the external environment by the southward heat collection component all the day, and compared with the conventional building southward building envelope structure, the solar radiation heat absorbed by the southward building envelope structure has a larger proportion because the surface and the outdoor air do not enter the room due to the convection heat exchange, and the embodiment of the disclosure obviously improves the solar heat utilization efficiency.

4. The east-west wall body adopted by the embodiment of the disclosure is a traditional building material or a phase-change material, absorbs and stores heat in the daytime, prevents the room temperature from rising rapidly due to excessive heat supply, discharges the stored heat to the indoor at night, prevents the room temperature from reducing too much at night, can effectively reduce the daily fluctuation of the room temperature, and is controlled in a thermal comfortable room of a human body.

5. The sun shield adopted by the embodiment of the disclosure can shield solar radiation irradiating at the evaporation section of the heat pipe when the solar altitude is higher in summer, effectively avoids the condition of overheating of a room in summer, and does not influence the thermal comfort of indoor personnel in summer while improving the indoor thermal environment in winter.

6. The present disclosure is also applicable to other wall-oriented solar house applications.

Drawings

Fig. 1 is a schematic view of an overall structure of a passive solar house with heat storage according to an embodiment of the present disclosure.

Fig. 2 (a) - (c) are schematic structural diagrams of L-shaped heat pipes in the passive solar house with heat storage according to the embodiment of the disclosure.

Fig. 3 (a) and (b) are schematic diagrams illustrating the operation of the passive thermal storage solar house according to the embodiment of the present disclosure during the daytime and at night, respectively.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

For better understanding of the present invention, a heat storage passive solar house according to the embodiments of the present disclosure is described in detail below.

Referring to fig. 1, the heat storage passive solar house includes a house a having a first wall and a second wall, and a heat pipe 1, a light-transmitting cover 2 and a sun visor 3 disposed at the periphery of the house a. The house a is an implementation object of the embodiment of the present disclosure, the house B is an adjacent room of the house a, and the house a and the house B belong to the same building. The east-west wall of the house a is the inner wall and the arrangement has symmetry, because of which only the east wall 4 of the house a is shown and described in its entirety. The heat pipe 1 of the embodiment of the disclosure is divided into an evaporation section 11 and a condensation section 12 (reference numerals "11" and "12" are not illustrated in fig. 1 and will be illustrated in fig. 2), the whole body is L-shaped and is a closed pipe, a break point of the L-shape is used as a division of the evaporation section 11 and the condensation section 12, a circulating working medium is filled in the heat pipe 1, and the circulating working medium flows in a closed cavity of the heat pipe 1. The surface of the evaporation section 11 of the heat pipe 1 is sprayed with a heat absorption coating (the heat absorption coating is not shown in the figure), and the evaporation section 11 of the heat pipe 1 is positioned on the outer side of the south non-transparent envelope structure of the house body A, so that the solar energy utilization area is increased, and meanwhile, indoor lighting is not influenced; the condensation section 12 of the heat pipe 1 is embedded inside the east wall 4 of the house a to transfer heat to the inner wall by heat conduction. The light-transmitting cover 2 is positioned on the outer side of the south non-transparent enclosure structure of the house body A, and covers the evaporation section 11 of the heat pipe 1 in the interior to reduce heat loss caused by convective heat transfer. The sun visor 3 is located above the light transmissive cover 2 to avoid overheating indoors when the solar altitude is high in summer.

The heat pipe 1 is formed by a plurality of micro heat pipes which are not communicated with each other and are all in an L shape, the whole structure is in an L shape, see (a) to (c) of fig. 2, and the folding point of the L shape is used as the division of the evaporation section 11 and the condensation section 12. For easy integration with the surface of the building envelope, the evaporation section 11 and the condensation section 12 of the heat pipe 1 are located in two intersecting (e.g., perpendicular) vertical planes. In order to realize the gravity diode property of the heat pipe 1, the evaporation section 11 and the condensation section 12 of the heat pipe 1 are both obliquely arranged, and in respective planes, the inclination angle between the flow direction of working media in the evaporation section 11 and the condensation section 12 and the horizontal direction is more than or equal to 5 degrees and less than 90 degrees. The circulating working medium filled in the heat pipe 1 is generally acetone, R141b, ethanol and other substances and mixtures thereof.

The surface of the evaporation section 11 of the heat pipe 1 is provided with a heat absorption part and is arranged on the outer side of the south non-transparent enclosing structure of the house body A, so that the evaporation section 11 of the heat pipe 1 forms a south-facing vertical plane to receive solar radiation in the daytime; the absorption of the heat of the solar radiation by the evaporation section 11 of the heat pipe 1 is improved by the heat absorbing part. The condenser section 12 of the heat pipe 1 is embedded in the east wall 4 of the room a. The heat absorbing component arranged on the surface of the evaporation section 11 of the heat pipe 1 can be a heat absorbing coating sprayed on the surface of the evaporation section 11 of the heat pipe 1, and can adopt heat collecting paint or black paint and the like; the heat absorbing component disposed on the surface of the evaporation section 11 of the heat pipe 1 may also be a heat collecting element (e.g., a heat collecting plate). The east wall 4 is a heat storage wall body, and is made of traditional building materials (such as bricks or concrete) or phase-change materials, so that the heat storage in the daytime and the heat release at night are facilitated, and the fluctuation of the room temperature in the room A all day long is reduced.

The light-transmitting cover 2 is located outside the south non-transparent enclosure structure of the house body A, the evaporation section 11 of the heat pipe 1 is located inside the light-transmitting cover 2, direct convection heat exchange between the evaporation section 11 of the heat pipe 1 and outdoor air is avoided, the proportion of solar radiation heat absorbed by the heat absorption coating of the evaporation section 11 in the daytime to the environment dissipation is reduced, and the heat utilization rate of solar energy is improved. In this embodiment, the light-transmitting cover is a glass cover.

The sun shield 3 is positioned above the glass cover 2, and can shield or reflect solar radiation irradiating the evaporation section 11 of the heat pipe 1 when the solar altitude is high in summer, so that the condition that a room is overheated in summer is effectively avoided. The sun visor 3 may be made of stainless steel or aluminum.

In some embodiments, the housing a includes an arc-shaped wall, and the heat pipe 1 is integrally arc-shaped.

In some embodiments, the sun visor 3 may be replaced by a photovoltaic panel to convert the collected solar energy into electrical energy while avoiding overheating in the room when the solar altitude is high in summer.

The working principle of the embodiment of the disclosure is as follows:

in winter and daytime, the working principle is shown in fig. 3 (a), solar radiation penetrates through the light-transmitting cover 2 to irradiate the surface of the evaporation section of the heat pipe 1 coated with the heat-absorbing coating, and the heat-absorbing coating with high absorptivity for solar radiation absorbs a large amount of solar radiation heat. The light-transmitting cover 2 isolates the air convection inside and outside the cover, and avoids the heat loss caused by the low-temperature air convection heat exchange between the evaporation section of the heat pipe 1 and the external environment.

Inside working medium of heat pipe 1 evaporates after the evaporation zone department absorbs the heat, produces and carries thermal steam, and steam flows upwards along the 1 evaporation zone of heat pipe that the slope set up to it is exothermic to run into the condensation when the lower east wall 4 of temperature is met in the condensation zone department of heat pipe 1, gives east wall 4 with heat transfer, and the condensation of working medium steam, the liquid drop of formation fall back to the evaporation zone of heat pipe 1 under the action of gravity. The heat is continuously circulated, and the heat transfer from the evaporation section to the condensation section is completed.

The east wall 4 of the room body A absorbs the heat of the condensation segment release of the heat pipe 1, stores the heat in the traditional building materials or phase-change materials in the interior through the heat conduction in the east wall 4, and simultaneously the indoor side wall surface temperature of the east wall 4 rises gradually, and the heat is transferred to the indoor air through the heat convection, so that the room temperature rises.

At night in winter, the working principle is shown in (b) of fig. 3, because no solar radiation irradiates, the working medium in the heat pipe 1 does not absorb heat and vaporize, is in a liquid state, is always positioned in the evaporation section of the heat pipe 1 under the action of self gravity, and does not form circular flow. The traditional building materials or phase-change materials of the east wall 4 continuously release the heat absorbed and stored in the daytime to supply heat for indoor space.

In summer, the sun altitude is higher, the sun shield 3 above the light-transmitting cover 2 shields the solar radiation irradiating the evaporation section of the heat pipe 1, and the heat pipe 1 is prevented from leading the absorbed solar heat into the room to cause overheating.

The invention is also applicable to other solar house applications facing the wall. The technical solution of the present invention may be modified or some technical features may be equivalently replaced without departing from the essential characteristics of the present invention; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.