CN109594678B - Novel solar radiant heat auxiliary heating concrete wall - Google Patents
Novel solar radiant heat auxiliary heating concrete wall Download PDFInfo
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- CN109594678B CN109594678B CN201811449392.4A CN201811449392A CN109594678B CN 109594678 B CN109594678 B CN 109594678B CN 201811449392 A CN201811449392 A CN 201811449392A CN 109594678 B CN109594678 B CN 109594678B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 52
- 239000011148 porous material Substances 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 18
- 230000001133 acceleration Effects 0.000 claims description 14
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 12
- 239000010436 fluorite Substances 0.000 claims description 12
- 239000010699 lard oil Substances 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000010775 animal oil Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000011325 microbead Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012546 transfer Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Building Environments (AREA)
Abstract
The invention provides a novel solar radiant heat auxiliary heating concrete wall, and relates to the technical field of building engineering materials. The wall comprises a concrete wall body 1, a concrete wall body 2, a plurality of air heating pore channels, a hot air collecting pore channel, an inlet channel, an outlet channel and a concrete wall body 3; the concrete wall body 1 is arranged on the side of the wall body, which is in contact with outdoor air, and is used for collecting solar energy; the concrete wall body 3 is arranged at the contact side of the wall body and the indoor, the lower part of the concrete wall body is provided with an inlet channel for flowing low-temperature air at the bottom of the indoor into the hot air collecting pore channel, and the upper part of the concrete wall body is provided with an outlet channel for flowing out the hot air in the hot air collecting pore channel; the concrete wall 2 is arranged between the concrete wall 1 and the concrete wall 3, a plurality of air heating channels are arranged in the concrete wall, and 2 hot air collecting channels are arranged in each bay. The novel solar radiant heat auxiliary heating concrete wall provided by the invention can collect the surface heat of the solar radiant wall and transmit the surface heat to the indoor space, so that the indoor temperature is effectively increased.
Description
Technical Field
The invention relates to the technical field of building engineering materials, in particular to a novel solar radiant heat auxiliary heating concrete wall.
Background
The solar heating is divided into active solar heating and passive solar heating. The passive solar heating utilizes radiation and convection heat conduction to enable heat energy to enter the interior of a building and achieve the effect of improving the indoor temperature. According to the current research results at home and abroad and in combination with the current economic development situation of China, the passive solar radiant heat auxiliary heating mode continues to be developed in a quite long historical stage of China.
At present, the outer wall of the northern civil building plays a role of enclosure, mainly plays roles of heat preservation and heat insulation, and rarely considers the role of solar radiant heat. Heating in winter mainly adopts heating equipment indoors. The heat load amount is reduced by considering only the orientation correction coefficient in the heating design. In fact, during the winter day, a large part of the heat radiated to the outer wall body by the solar energy is not utilized due to the blocking of the thermal insulation layer. Therefore, it is necessary to develop a wall body capable of insulating heat and assisting heating.
Disclosure of Invention
The invention aims to solve the technical problem that the prior art is not enough, and the novel solar radiant heat auxiliary heating concrete wall comprises a concrete wall body 1 serving as a solar energy collecting layer, a heat-insulating concrete wall body 2, a plurality of air heating pore channels, a plurality of hot air collecting pore channels, an inlet channel, an outlet channel and a concrete wall body 3; the concrete wall body 1 is arranged on the side of the wall body, which is in contact with outdoor air, and is used for collecting solar energy; the concrete wall body 3 is arranged at the side of the wall body contacting with the indoor, an inlet channel for leading air with low temperature at the indoor bottom to flow into the hot air collecting pore channel is arranged at the lower part, and an outlet channel for leading the hot air of the hot air collecting pore channel to flow out is arranged at the upper part; the heat-insulation concrete wall 2 is arranged between the concrete wall 1 and the concrete wall 3; the plurality of air heating pore channels and the hot air collecting pore channels are all arranged in the heat insulation concrete wall body 2.
Preferably, the thickness of the concrete wall 1 of the solar energy collecting layer is 20mm, the thickness of the heat-insulating concrete wall 2 is 150mm, and the thickness of the concrete wall 3 is 200 mm.
Preferably, the opening degree of the air heating pore channel is 6mm, the included angle between the pore channel and the gravity acceleration direction is 30 degrees, the included angle between the pore channel and the vertical gravity acceleration direction is 3 degrees, the pore channel is communicated with wall body parts at the upper part and the lower part of the window, the pore channel is not communicated with the window at the same elevation position as the window due to the blocking of the window, animal oil is injected into the lower space of each air heating pore channel, and the upper space is communicated with the hot air collecting pore channel.
Preferably, the inlet channel is at an angle of 80 ° to the vertical gravitational acceleration direction; the outlet channel is of an N-shaped structure and comprises three air channels, namely a left air channel, a middle air channel and a right air channel, wherein the left air channel and the right air channel are parallel and have a distance of 200mm, an angle of 30 degrees is formed between the left air channel and the right air channel and the direction of the gravitational acceleration, and the middle air channel is along the direction of the gravitational acceleration.
Preferably, said hot air collecting duct is made of 0.1mm thick PVC material.
Preferably, the height of the animal oil injected into the lower part of each air heating pore channel is 30mm, and the animal oil is lard oil.
Preferably, the concrete wall 1 consists of concrete 1 and a metal net; the concrete 1 comprises cement, fluorite fine aggregate, fluorite coarse aggregate and a carbon black wall body, the weight ratio of the materials is 1:2: 0.05, the diameter of the fluorite fine aggregate is 0.5-2mm, and the diameter of the fluorite coarse aggregate is 4-6 mm; the diameter of the steel wire is 1mm, and the size of the grid made of cold-drawn low-carbon steel is 15-25 mm.
Preferably, the heat-preservation and heat-insulation concrete wall body 2 consists of concrete 2 and a double-layer steel wire mesh; the concrete 2 comprises cement, sand, broken stone, ceramsite, vitrified micro-beads, fly ash and water, and the weight ratio of the materials is 1:1.62:1.48:0.37:0.22:0.19: 0.40.
The design idea of the invention is as follows:
the invention utilizes sunlight to irradiate the south outer wall of the building to increase the temperature of the outer surface of the concrete wall body 1 serving as the solar energy collecting layer on the outer surface of the outer wall. The solar energy collecting layer is characterized in that a part of heat heats outdoor air near the outer surface, so that the heat flows upwards along the outer surface wall, most of the heat is transferred to the interior of the concrete wall 1 of the solar energy collecting layer in a heat conduction mode, the heating air heats the joint position of the pore channel, so that the temperature of lard oil at the joint position is raised, the lard oil is changed into liquid from solid, the lard oil heat transfer is mainly changed from solid heat transfer into liquid convection heat transfer, the lard oil with the raised temperature heats air in the pore channel, the hot air flows upwards along the upper surface of the air heating pore channel under the action of buoyancy force to enter the hot air collecting pore channel, the hot air flows upwards along the air collecting pore channel after being collected, and finally enters the room along the outlet channel. The hot air entering the room reaches the indoor space to achieve the purpose of heating, and the indoor low-temperature air enters the hot air collecting pore passage through the inlet channel and enters the air heating pore passage to complete the whole circulation process.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: according to the novel solar radiant heat auxiliary heating concrete wall provided by the invention, due to the arrangement of the solar energy collecting layer concrete wall body 1, the surface heat of the solar radiation wall body can be collected in winter in daytime, and rainwater is prevented from invading the wall body in rainy days, so that the wall body is protected. The arrangement of the heat-insulation concrete wall body 2 can effectively prevent heat stored in a room from dissipating outwards through the south outer wall, and meanwhile, the heat of the solar energy collecting wall is guaranteed to heat air in the air heating pore channel, so that the temperature of the air heating pore channel rises, and the air enters the room through the air outlet along the hot air collecting pore channel, so that the purpose of passively heating by utilizing solar energy is achieved. The concrete wall 3 can provide effective horizontal and vertical supports for buildings, and simultaneously plays a role in preventing indoor heat from transferring heat to outdoor walls. An outlet channel is arranged at the position 200mm away from the indoor ceiling on the upper part of the concrete wall body 3, so that hot air can flow into the room, meanwhile, the hot air in the room at night or in cloudy days is prevented from returning to an air duct, and the purpose of reducing the indoor temperature is achieved. An inlet channel for indoor low-temperature air to enter is arranged at the position, 150mm away from the indoor ground, of the lower portion of the concrete wall body 3, the included angle between the air inlet channel and the direction of the gravitational acceleration is 80 degrees, air with low indoor temperature can enter the hot air collecting hole channel, and indoor heat can be prevented from being dissipated outwards through the inlet channel at night or in cloudy days.
Drawings
Fig. 1 is a schematic cross-sectional view of a novel solar radiant heat assisted heating concrete wall according to an embodiment of the present invention;
fig. 2 is a schematic main force surface view of a novel solar radiant heat assisted heating concrete wall provided by an embodiment of the invention;
FIG. 3 is an enlarged, fragmentary view of an inlet channel provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic, enlarged view of a portion of an outlet channel provided in accordance with an embodiment of the present invention;
fig. 5 is a partially enlarged schematic view of an air heating duct according to an embodiment of the present invention.
In the figure, 1, a concrete wall 1; 2. a heat-insulating concrete wall body 2; 3. an air heating tunnel; 4. a hot air collection duct; 5. a concrete wall 3; 6. an air inlet; 7. an air outlet; 8. an outlet channel; 9. an inlet channel.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In this embodiment, a building is taken as an example, and the novel solar radiant heat auxiliary heating concrete wall of the present invention is used for auxiliary heating of the building.
A novel solar radiant heat auxiliary heating concrete wall, as shown in fig. 1 and 2, comprises a concrete wall 11 as a solar energy collection layer, a heat preservation and insulation concrete wall 22, a plurality of air heating channels 3, two hot air collection channels 4, an inlet channel 9, an outlet channel 8 and a concrete wall 35; the concrete wall body 11 is arranged on the side, which is in contact with outdoor air, of the wall body and is used for collecting solar energy, and the thickness of the wall body is 20 mm; the concrete wall 35 is arranged at the side of the wall body contacting with the indoor, the lower part of the wall body is provided with an inlet channel 9 for leading air with low temperature at the indoor bottom to flow into the hot air collecting pore channel, the upper part of the wall body is provided with an outlet channel 8 for leading the hot air in the hot air collecting pore channel to flow out, and the thickness of the wall body is 200 mm; the inlet channel 9, as shown in fig. 3, forms an angle of 80 degrees with the vertical gravitational acceleration direction, which is beneficial for the indoor low-temperature air to enter the hot air collecting duct when the lower part of the hot air collecting duct is at low pressure; the outlet channel 8 is of an N-shaped structure, and as shown in fig. 4, includes three air ducts, namely a left air duct, a middle air duct and a right air duct, wherein the left air duct and the right air duct are parallel and have a distance of 200mm, and both form an angle of 30 degrees with the direction of gravitational acceleration, and the middle air duct is along the direction of gravitational acceleration; the heat-insulation concrete wall 22 is arranged between the concrete wall 11 and the concrete wall 35, and the thickness of the wall is 150 mm; the air heating pore channels 3 and the hot air collecting pore channels 4 are arranged in the heat insulation concrete wall 22, and two hot air collecting pore channels are arranged on two sides of the window in each bay; the air heating pore channels 3 are as shown in fig. 5, the opening degrees of the pore channels are all 6mm, the included angle between the pore channels and the gravity acceleration direction is 30 degrees and the included angle between the pore channels and the vertical gravity acceleration direction is 3 degrees, multiple times of experimental verification and numerical calculation prove that the 30-degree angle is the optimal angle for fluid heat transfer, heat can be promoted to enter the hot air collecting pore channels to the maximum extent, the pore channels are communicated at the upper part and the lower part of a window, the pore channels are not communicated due to the blocking of the window at the same elevation as the window, lard oil with the thickness of 30mm is injected into the lower space of each air heating pore channel, the upper space is communicated with the hot air collecting pore channels 4, and the lard oil is arranged to be solidified to form solid heat which is slowly transmitted when the temperature is low at night or in cloudy days, the phase is changed into liquid when the temperature is high, the convection heat; the heat-insulating concrete wall 22 has the function of increasing the heat resistance and preventing the indoor heat from being dissipated outdoors in winter. Under the division of the air heating pore canal 3, the thermal resistance of the heat-preservation and heat-insulation concrete wall 22 is increased by about 10 percent through tests, and the heat-preservation and heat-insulation effects are fully achieved.
The concrete wall 11 consists of concrete 1 and a metal net; the concrete 1 comprises cement, fluorite fine aggregate, fluorite coarse aggregate and a carbon black wall body, the weight ratio of the materials is 1:2: 0.05, the diameter of the fluorite fine aggregate is 0.5-2mm, and the diameter of the fluorite coarse aggregate is 4-6 mm; the diameter of the steel wire is 1mm, and the size of the grid made of cold-drawn low-carbon steel is 15-25 mm.
The heat-preservation and heat-insulation concrete wall 22 consists of concrete 2 and a double-layer steel wire mesh; the concrete 2 comprises cement, sand, broken stone, ceramsite, vitrified micro-beads, fly ash and water, and the weight ratio of the materials is 1:1.62:1.48:0.37:0.22:0.19: 0.40.
The hot air collecting channel 4 is made of 0.1mm thick PVC material.
In the embodiment, compared with a room without the concrete wall body, the room adopting the novel solar radiant heat auxiliary heating concrete wall can obviously improve the indoor temperature, ensure that the indoor night temperature is not lower than 7 ℃ under the condition of no indoor heat source, and improve the indoor temperature by 3-4 ℃ under the condition of heat source.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present invention as defined in the appended claims.
Claims (6)
1. The utility model provides a novel solar energy radiant heat assists heating concrete wall which characterized in that: the solar heat-insulation solar energy collection system comprises a concrete wall body 1 serving as a solar energy collection layer, a heat-insulation concrete wall body 2, a plurality of air heating pore channels, hot air collection pore channels, an inlet channel, an outlet channel and a concrete wall body 3; the concrete wall body 1 is arranged on the side of the wall body, which is in contact with outdoor air, and is used for collecting solar energy; the concrete wall 3 is arranged on the side of the wall, which is in contact with the indoor space, the lower part of the concrete wall is provided with an inlet channel for allowing air with low temperature at the indoor bottom to flow into the hot air collecting pore channel, and the upper part of the concrete wall is provided with an outlet channel for allowing hot air in the hot air collecting pore channel to flow out; the heat-insulation concrete wall 2 is arranged between the concrete wall 1 and the concrete wall 3; the plurality of air heating pore channels and the hot air collecting pore channels are all arranged in the heat insulation concrete wall body 2;
the inlet channel and the vertical gravity acceleration direction form an angle of 80 degrees; the outlet channel is of an N-shaped structure and comprises three air channels, namely a left air channel, a middle air channel and a right air channel, wherein the left air channel and the right air channel are parallel and have a distance of 200mm, an angle of 30 degrees is formed between the left air channel and the right air channel and the direction of the gravitational acceleration, and the middle air channel is along the direction of the gravitational acceleration.
2. The novel solar radiant heat auxiliary heating concrete wall as claimed in claim 1, is characterized in that: the thickness of the solar energy collection layer concrete wall body 1 is 20mm, the thickness of the heat preservation and insulation concrete wall body 2 is 150mm, and the thickness of the concrete wall body 3 is 200 mm.
3. The novel solar radiant heat auxiliary heating concrete wall as claimed in claim 1, is characterized in that: the height of the animal oil injected into the lower part of each air heating pore channel is 30mm, and the animal oil is lard oil.
4. The novel solar radiant heat auxiliary heating concrete wall as claimed in claim 1, is characterized in that: the hot air collecting channel is made of a 0.1mm thick PVC material.
5. The novel solar radiant heat auxiliary heating concrete wall as claimed in claim 1, is characterized in that: the concrete wall 1 consists of concrete 1 and a metal net; the concrete 1 comprises cement, fluorite fine aggregate, fluorite coarse aggregate and a carbon black wall body, the weight ratio of the materials is 1:2:2:0.05, the diameter of the fluorite fine aggregate is 0.5-2mm, and the diameter of the fluorite coarse aggregate is 4-6 mm; the diameter of the steel wire is 1mm, and the size of the grid made of cold-drawn low-carbon steel is 15-25 mm.
6. The novel solar radiant heat auxiliary heating concrete wall as claimed in claim 1, is characterized in that: the heat-preservation and heat-insulation concrete wall body 2 consists of concrete 2 and a double-layer steel wire mesh; the concrete 2 comprises cement, sand, broken stone, ceramsite, vitrified micro-beads, fly ash and water, and the weight ratio of the materials is 1:1.62:1.48:0.37:0.22:0.19: 0.40.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811449392.4A CN109594678B (en) | 2018-11-30 | 2018-11-30 | Novel solar radiant heat auxiliary heating concrete wall |
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| CN201811449392.4A CN109594678B (en) | 2018-11-30 | 2018-11-30 | Novel solar radiant heat auxiliary heating concrete wall |
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| CN109594678A CN109594678A (en) | 2019-04-09 |
| CN109594678B true CN109594678B (en) | 2021-04-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2433925C (en) * | 2003-07-22 | 2011-06-14 | Alberta Research Council Inc. | Wall integrated thermal solar collector with heat storage capacity |
| CN201547970U (en) * | 2009-09-28 | 2010-08-11 | 江苏贝德莱特太阳能科技有限公司 | Solar air heat collector |
| CN103512078A (en) * | 2012-06-27 | 2014-01-15 | 南郁森 | Solar wall heat supplying and radiating system |
| CN103404391B (en) * | 2013-07-31 | 2015-01-07 | 北京工业大学 | Solar active-passive heat storage 'triple' structure wall building system of solar greenhouse |
| CN204176760U (en) * | 2014-09-26 | 2015-02-25 | 广东美的制冷设备有限公司 | Air conditioner room unit and air-conditioner |
| CN204145185U (en) * | 2014-10-17 | 2015-02-04 | 袁琪 | The anti-air-return cooling mechanism of food processor |
| CN204513816U (en) * | 2015-01-10 | 2015-07-29 | 赵贵 | A kind of orifice plate type solar energy air heat collector |
| CN104674979B (en) * | 2015-01-18 | 2017-09-01 | 北京工业大学 | A kind of high-performance phase-transition heat-storage Light Wall solar air heating system |
| CN204392751U (en) * | 2015-02-06 | 2015-06-10 | 中兴通讯股份有限公司 | A kind of air guide insertion box and rack |
| CN106936374B (en) * | 2017-04-25 | 2019-04-19 | 广东五星太阳能股份有限公司 | A kind of photovoltaic cell middle Trombe wall |
| CN208124547U (en) * | 2018-05-02 | 2018-11-20 | 皓庭(唐山）环境科技有限公司 | Single new blower in air port |
| CN108412531A (en) * | 2018-05-18 | 2018-08-17 | 西安科技大学 | A kind of Z-type return air device and method of steep-inclined thick coal seam mining |
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