CN108589960B - Phase-change heat collection-radiating wall system operated under all working conditions - Google Patents
Phase-change heat collection-radiating wall system operated under all working conditions Download PDFInfo
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- CN108589960B CN108589960B CN201810369035.0A CN201810369035A CN108589960B CN 108589960 B CN108589960 B CN 108589960B CN 201810369035 A CN201810369035 A CN 201810369035A CN 108589960 B CN108589960 B CN 108589960B
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 26
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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
- E04B1/74—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
- E04B1/7675—Insulating linings for the interior face of exterior walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0075—Systems using thermal walls, e.g. double window
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention belongs to the technical field of building energy conservation, and relates to a phase-change heat collection-radiation wall system operating under all working conditions, which comprises a glass cover plate arranged on a room window body, wherein a heat storage wall body is arranged on the inner side of the glass cover plate, and a decorative plate is arranged on the inner side of the heat storage wall body; the top opening of the glass cover plate is communicated with the outside, the top opening and the bottom opening of the heat storage wall form a double-cavity channel, the top opening and the bottom opening of the decorative plate are communicated with a room, and an outdoor exhaust suction fan and an indoor air supply suction fan are arranged at the top opening of the glass cover plate and the top opening of the decorative plate; the inner side of the glass cover plate is provided with a heat preservation and insulation roller shutter. The heat storage wall body is provided with phase change materials with different phase change temperatures, a punched aluminum plate is attached to the outer side of the phase change material, and the vortex generators on the surface of the inner side of the phase change material are longitudinally arranged, so that heating in winter and cooling in summer are realized by opening different operation modes in winter and summer. The phase-change heat collection-radiation wall system has wide application prospect and popularization value in areas with enriched solar energy resources and large day and night temperature difference.
Description
Technical Field
The invention belongs to the technical field of building energy conservation, and relates to a phase-change heat collection-radiating wall system which adopts phase-change materials with different phase-change temperatures, combines a heat-preservation heat-insulation roller shutter and a fan to adjust indoor thermal environment, and can be used under annual working conditions.
Background
The northern area of China is cold and is a main area for heating, wherein the heating energy consumption of northern towns is 1.84 hundred million tce, which accounts for 21% of the building energy consumption, but the total amount of heating energy consumption is continuously increased due to the increase of the building area and the improvement of the comfort requirement of people. Therefore, the reduction of the building heating energy consumption has great significance for building energy conservation. The heat preservation and storage performance of the building envelope structure is improved, renewable resources such as solar energy are utilized, and the building heating energy consumption can be reduced. The solar energy resource is abundant in the northern area of China, especially in the northwest area, and the solar heating mode is an effective solar heating mode by combining building heat storage with solar heating. The heat collection and storage wall is a mature and simple solar heating utilization mode, and is generally made of concrete, bricks and other materials with strong heat storage performance for sensible heat storage, but has the problems of insufficient heat storage capacity and the like, so that the requirement of thermal comfort all day around is difficult to meet. The phase-change energy storage material has the advantage of high energy storage density, and in recent years, with the continuous development of phase-change energy storage technology and material science and technology, a phase-change heat collection and storage wall has been adopted to adjust the indoor thermal environment, but the phase-change heat storage material has the problems of low heat storage and release rate and the like. Meanwhile, the heat-collecting and heat-accumulating wall is designed with less consideration on heat preservation at night in winter and heat insulation and cooling in summer, and the utilization efficiency of the phase-change heat-collecting and heat-accumulating wall is lower due to the lack of a scientific and reasonable operation strategy.
In conclusion, the heat collection and storage wall mainly has the following problems:
(1) the traditional heat collection and storage wall has limited heat storage capacity and cannot meet the heat comfort requirement at night; the phase-change heat collection and storage wall has low heat storage and release rate and low heating efficiency.
(2) The heat preservation performance is poor, so that the heat loss in winter is more, and the utilization rate of the stored heat is reduced.
(3) The heat insulation performance is poor, so that the indoor environment is easy to overheat in summer, and the requirement of thermal comfort in summer is not met.
For the above reasons, the heat storage capacity, heat exchange efficiency, and heat insulation performance of the heat collecting and storing wall should be improved.
Disclosure of Invention
In order to solve the above-mentioned defects in the prior art, the present invention aims to provide a phase-change heat collection-radiation wall system operating under all working conditions, which uses a passive-type-based and active-type-based building energy-saving design technology, on one hand, the heat preservation, heat insulation and heat storage performances of a building are enhanced, and the heat exchange efficiency is enhanced, on the other hand, resources such as solar energy, wind energy and the like are reasonably utilized, and the system has great advantages from the viewpoint of energy saving and economy. Compared with the traditional heat collection and storage wall, the invention greatly improves the heating efficiency in winter and simultaneously achieves the aim of cooling in summer.
The invention is realized by the following technical scheme.
A phase-change heat collection-radiating wall system operating under all working conditions comprises a glass cover plate arranged on a window body opposite to a north window of a room, a heat storage wall body arranged on the inner side of the glass cover plate, and a decorative plate arranged on the inner side of the heat storage wall body; the top opening of the glass cover plate is communicated with the outside, the top opening and the bottom opening of the heat storage wall body form a double-cavity channel, the top opening and the bottom opening of the decorative plate are communicated with a room, and an outdoor exhaust suction fan and an indoor air supply suction fan are arranged at the top opening of the glass cover plate and the top opening of the decorative plate; the heat-preservation and heat-insulation roller shutters are installed on the inner side of the glass cover plate, and heating in winter and cooling in summer are realized by opening different operation modes in winter and summer.
With respect to the above technical solution, the present invention has a further preferable solution:
furthermore, a heat insulation material layer, an outer phase change material, a punched aluminum plate and a heat absorption coating are sequentially arranged on the outer side of the heat storage wall body from inside to outside, an inner side phase change material is arranged on the inner side of the heat storage wall body, a longitudinal vortex generator is arranged on the inner side surface of the inner side phase change material at an incident flow attack angle alpha, and alpha is larger than 0 degrees and smaller than 90 degrees.
Further, the longitudinal vortex generator is of a triangular wing type, a rectangular wing type, a triangular fin type or a rectangular fin type structure, the longitudinal vortex generator is of a triangular or rectangular structure with the same area, the two planes are in an alpha-angle distribution structure, one plane is flatly attached to the surface of the phase change material on the inner side, and the other plane and the flat surface are arranged at an alpha angle.
Further, the opening directions of the attack angle alpha of the incident flow of the triangular wing type and the rectangular wing type structures are arranged opposite to the flow direction of the air flow.
Further, the opening direction of the attack angle alpha of the triangular fin-shaped structure and the rectangular fin-shaped structure is arranged in the same direction with the airflow laminar flow direction.
Further, the longitudinal vortex generators are in a multi-row, multi-column, in-line, staggered or staggered form.
Furthermore, an upper air inlet middle baffle and a lower air inlet middle baffle are respectively arranged at the top end of the heat storage wall body and the inner side of the double-cavity channel with the opening at the bottom, and an upper air inlet outer baffle and an upper air inlet inner baffle are respectively arranged at the installation positions corresponding to the outdoor exhaust suction fan and the indoor air supply suction fan.
Furthermore, a plurality of through holes are distributed on the punching aluminum plate in an array manner, and the through holes are round holes.
In winter operation mode, in winter: the outer baffle of the upper air inlet is closed, the inner baffle of the upper air inlet, the middle baffle of the upper air inlet and the middle baffle of the lower air inlet are opened, the indoor air supply suction fan is opened, and the heat-preservation and heat-insulation rolling curtain is opened; in winter, at night: the outer baffle of the upper air inlet is closed, the inner baffle of the upper air inlet, the middle baffle of the upper air inlet and the middle baffle of the lower air inlet are opened, the indoor air supply suction fan is opened, and the heat-preservation and heat-insulation roller shutter is closed.
In summer operation mode, in summer: the inner baffle of the upper air inlet is opened, the outer baffle of the upper air inlet, the middle baffle of the upper air inlet and the middle baffle of the lower air inlet are closed, the indoor air supply suction fan is opened, and the heat-preservation and heat-insulation rolling curtain is closed; and (3) in summer at night: the outer baffle of the upper air inlet and the middle baffle of the upper air inlet are opened, the inner baffle of the upper air inlet and the middle baffle of the lower air inlet are closed, the outdoor exhaust suction fan is opened, the heat-preservation and heat-insulation rolling curtain is opened, and the north window is opened.
Compared with the prior art, the invention has the following effects:
(1) the invention adopts two phase-change materials with different phase-change temperatures, the outer phase-change material is used for heating in winter, the inner phase-change material is used for cooling in summer, and the two phase-change materials are respectively attached to two sides of a building wall body, so that the indoor thermal environment in winter and summer can be adjusted.
(2) According to the invention, the punched aluminum plate is attached to the surface of the outer phase-change material, so that on one hand, the aluminum plate strengthens heat conduction of the phase-change material and improves heat storage and release rate of the outer phase-change material, on the other hand, the circular hole induces vortex to destroy wall laminar flow, heat exchange between air in the outer cavity and the punched aluminum plate is enhanced, and heating efficiency in winter is improved.
(3) The surface of the inner phase-change material adopted by the invention is provided with various longitudinal vortex generators in a certain incident flow attack angle and array mode, the induced vortex destroys the boundary layer attached to the wall surface, the turbulence intensity is increased, the heat exchange between the air in the inner cavity channel and the inner phase-change material is strengthened, and the cooling efficiency in summer is improved.
(4) The heat-preservation and heat-insulation rolling curtain adopted by the invention has good heat-preservation and heat-insulation effects, and at night in winter, the heat-preservation and heat-insulation rolling curtain and the glass cover plate form a closed air interlayer, so that the air heat loss of the outer cavity channel is reduced, and meanwhile, the radiation heat loss of the punched aluminum plate is reduced, and the heat-preservation effect is achieved. In summer, the reflective coating on the surface of the heat-insulating roller shutter can reduce the transmission of solar radiation heat, and meanwhile, the heat-insulating roller shutter and the glass cover plate and the wall body form two closed air interlayers respectively, so that the transmission of outdoor heat is reduced, and the heat-insulating effect is achieved.
(5) The invention adopts two auxiliary fans and four baffles, and respectively adopts different operation strategies under different working conditions, thereby realizing high-efficiency regulation of indoor thermal environment.
Adopt phase change heat storage material reinforcing its heat accumulation performance, adopt heat preservation thermal-insulated roll curtain reinforcing its heat preservation heat-proof quality, adopt aluminum plate, vertical vortex generator and the fan that punches a hole to improve its heat exchange efficiency, realize the regulation to the indoor thermal environment of annual different time through adopting different operation strategies, improve indoor comfort level.
The phase-change heat collection-radiation wall system has wide application prospect and popularization value in areas with enriched solar energy resources and large day and night temperature difference.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention:
FIGS. 1(a) - (d) are schematic structural views of a phase-change heat collection-radiating wall system operating under all working conditions, wherein FIG. 1(a) is a schematic view of the working conditions in the daytime in winter; FIG. 1(b) is a schematic diagram illustrating the night working condition in winter; FIG. 1(c) is a schematic view of summer daytime conditions; FIG. 1(d) is a schematic diagram of nighttime conditions in summer;
FIG. 2 is a schematic view of a punched aluminum sheet;
FIG. 3 is a schematic layout of longitudinal vortex generators on the surface of the inner phase-change material;
FIGS. 4(a) - (d) are schematic diagrams of several different longitudinal vortex generators, respectively.
Wherein, 1-glass cover plate; 2-heat preservation and heat insulation rolling curtain; 3-outer baffle of upper tuyere; 4-middle baffle of upper tuyere; 5-an inner baffle of the upper air inlet; 6-lower tuyere middle baffle; 7-a heat-absorbing coating; 8-longitudinal vortex generators; 9-punching an aluminum plate; 10-outer phase change material (for winter heating); 11-a layer of insulating material; 12-a body structure layer; 13-inner phase change material (for cooling in summer); 14-outdoor exhaust suction fan; 15-indoor air supply suction fan; 16-a decorative plate; 17-northbound window.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions of the present invention are provided to explain the present invention without limiting the invention thereto.
Referring to fig. 1(a) -1 (d), the invention provides a phase-change heat collection-radiating wall system operating under all working conditions, which comprises a glass cover plate 1 arranged on a window body of a room (in this embodiment, on the window body opposite to a north window 17), wherein a heat storage wall body 12 is arranged on the inner side of the glass cover plate 1, and a decorative plate 16 is arranged on the inner side of the heat storage wall body 12; the top opening of the glass cover plate 1 is communicated with the outside, the top opening and the bottom opening of the heat storage wall body 12 form a double-cavity channel, the top opening and the bottom opening of the decorative plate 16 are communicated with the room, and an outdoor exhaust suction fan 14 and an indoor air supply suction fan 15 are arranged at the top opening of the glass cover plate 1 and the top opening of the decorative plate 16; the inner side of the glass cover plate 1 is provided with a heat-preservation and heat-insulation roller shutter 2, and different operation strategies are adopted in winter and summer respectively to realize heating in winter and cooling in summer.
Wherein, the heat storage wall body 12 outside is equipped with insulation material layer 11, outside phase change material 10 (for winter heating), punching hole aluminum sheet 9 and heat absorption coating 7 from inside to outside in proper order, is equipped with inboard phase change material 13 (for summer cooling) in heat storage wall body 12 inboard, and the vertical vortex generator 8 is arranged with certain angle of attack and display on inboard surface in inboard phase change material 13.
The inner sides of the room walls of the double-cavity channel with the top opening and the bottom opening of the heat storage wall 12 are respectively provided with an upper air inlet middle baffle 4 and a lower air inlet middle baffle 6, and the installation positions of an outdoor exhaust suction fan 14 and an indoor air supply suction fan 15 at the top opening of the glass cover plate 1 and the top opening of the decorative plate 16 are respectively provided with an upper air inlet outer baffle 3 and an upper air inlet inner baffle 5. The heat-preservation and heat-insulation rolling curtain 2 is arranged on the wall body on the inner side of the glass cover plate 1, the surface, close to the outdoor side, of the heat-preservation and heat-insulation rolling curtain 2 is coated with a coating with a large reflectivity, the transmission of solar radiation heat is reduced, meanwhile, a closed air space can be formed between the heat-preservation and heat-insulation rolling curtain 2 and the glass cover plate and the wall body, the loss of indoor heat or the transmission of outdoor heat is reduced, and certain heat-preservation and heat-insulation effects are achieved. The position in the outer cavity air interlayer is deviated from one side of the glass cover plate, and the specific installation position meets the requirements of ventilation and heating of the outer cavity of the building heat collection and storage wall. The glass cover plate 1 has high transmittance to solar radiation, can permeate a large amount of solar radiant heat and has a certain heat preservation effect.
Wherein, the outer phase-change material 10 adopts Na 2 S 2 O 3 ·5H 2 The phase-change material such as O, paraffin and the like has higher phase-change temperature, is a phase-change material for heating in winter and is used for storing and releasing heat in winter; the heat insulation material layer 11 is made of heat insulation materials such as polystyrene, extruded polystyrene boards and the like; the inner phase-change material 13 adopts CaCl 2 ·6H 2 The phase change material such as O has lower phase change temperature, is a phase change material for cooling in summer and is used for absorbing heat in summer. The heat absorption coating can increase the absorption of solar radiation heat and collect more heat.
The decorative plate and the heat storage wall form an inner cavity channel, the inner cavity channel is combined with the fan to strengthen the flow heat transfer in the cavity channel, and meanwhile, the decorative plate is convenient to detach and mount and has a certain attractive effect. The top end of the glass cover plate and the top end of the decorative plate are provided with the fans, so that ventilation and heat exchange of cavity air and indoor air can be enhanced.
Referring to fig. 2, a plurality of through holes are distributed on the punching aluminum plate 9 in an array manner, the through holes are circular holes, and the circular holes induce vortexes to thin and destroy the laminar flow of the bottom layer of the boundary layer attached to the wall surface, so that the heat storage and release of the outer-cavity phase-change material and the convection heat exchange of the outer-cavity channel air and the punching aluminum plate 9 are enhanced, the heat storage and release rate of the outer-cavity phase-change material 10 is increased, and the indoor heating efficiency is improved. The thickness of the punched aluminum plate, the size, the number and the display form of the round holes are determined according to the design requirements of the size of the cavity channel, the display can be in the forms of multiple rows, multiple columns, sequential rows, staggered rows and the like, and the mutual distance between the front, the back, the left and the right is determined according to the design requirements of the operation conditions of the phase change heat storage wall and the like. Referring to fig. 2, the upper and lower ends of the punched aluminum plate 9 are provided with vent holes, the vent hole at the upper end is square, and the vent hole at the lower end is rectangular; correspondingly, the structures of the thermal insulation material layer 11, the outer phase-change material 10, the heat absorption coating 7 and the inner phase-change material 13 on the inner side of the heat storage wall body 12, which are included on the outer side of the heat storage wall body 12, are provided with top and bottom vent holes; the square ventilation hole in the upper end is matched with the fan to facilitate ventilation, the rectangular ventilation hole in the lower end is used for increasing the contact surface of air and a punched aluminum plate and enhancing heat exchange.
Referring to fig. 3, various longitudinal vortex generators 8 are arranged on the surface of the phase change material 13 inside the structural layer 12 of the building wall body at a certain attack angle α of incident flow and in a display manner, respectively (fig. 4(a) - (d)).
Referring to fig. 4(a) - (d), the longitudinal vortex generator 8 has a triangular airfoil, a rectangular airfoil, a triangular fin or a rectangular fin structure. The longitudinal vortex generator 8 induces the vortex to reduce and destroy the laminar flow of the boundary layer attached to the wall surface, increases the turbulence intensity to strengthen the convective heat exchange between the air in the inner cavity channel and the inner side phase-change material 13, improves the heat storage and release rate of the inner side phase-change material 13, and improves the indoor cooling efficiency. The attack angle alpha of the longitudinal vortex generator 8 is 0-90 degrees, which is determined by the position of the surface of the inner phase change material 13. The size, number and display form of the longitudinal vortex generators 8 are determined by the design requirements of the channel size, the display can be in the forms of multiple rows, multiple columns, sequential rows, staggered rows and the like, and the mutual distance between the front and the back, the left and the right and the surface position of the phase-change material are determined according to the design requirements of the phase-change heat storage wall, the operation conditions and the like.
The effect of the present invention will be further explained by the working principle of the present system.
Wherein, fig. 1(a) and fig. 1(b) are schematic diagrams of working conditions in the daytime and at night in winter respectively, fig. 1(c) and fig. 1(d) are schematic diagrams of working conditions in the daytime and at night in summer respectively, and the indoor thermal environment in the daytime and at night in winter and summer is adjusted by opening and closing the baffle, the fan and the heat-insulating rolling curtain.
(1) Working conditions in winter and daytime
The outer baffle 3 of the upper air inlet is closed, the inner baffle 5 of the upper air inlet, the middle baffle 4 of the upper air inlet and the middle baffle 6 of the lower air inlet are opened, the indoor air supply suction fan 15 is opened, the heat-preservation and heat-insulation roller shutter 2 is opened, and indoor air enters the room after being heated by the outer cavity channel. Solar radiation penetrates through the glass cover plate 1 and is absorbed by the punched aluminum plate 9 and stored in the outer phase-change material 10, the glass cover plate 1 and the punched aluminum plate 9 heat interlayer air through surface convection heat exchange, and the interlayer air exchanges heat with indoor ventilation under the action of the indoor air supply and suction fan 15. The circular holes in the punched aluminum plate 9 induce vortex to destroy the laminar flow on the wall surface, heat exchange between interlayer air and the punched aluminum plate 9 is enhanced, and the heat storage rate of the phase change material 10 on the outer side is improved.
(2) Night working condition in winter
The outer baffle 3 of the upper air inlet is closed, the inner baffle 5 of the upper air inlet, the middle baffle 4 of the upper air inlet and the middle baffle 6 of the lower air inlet are opened, the indoor air supply suction fan 15 is opened, the heat-preservation and heat-insulation roller shutter 2 is closed, and indoor air enters the room after being heated by the outer cavity channel. The phase-change material 10 on the outer side is solidified to release stored heat, interlayer air is heated through the punched aluminum plate, and the interlayer air is subjected to indoor ventilation and heat exchange under the action of the indoor air supply and suction fan 15. The circular holes in the punched aluminum plate 9 induce vortex to destroy the laminar flow on the wall surface, heat exchange between the interlayer air and the punched aluminum plate 9 is enhanced, and the heat release rate of the phase change material 10 on the outer side is improved. The heat-insulating roller shutter 2 and the glass cover plate 1 form a closed air interlayer, so that the heat loss of the air in the outer cavity channel is reduced, and the radiation heat loss of the punched aluminum plate 9 is reduced.
(3) Working condition in summer and daytime
The upper air inlet inner baffle 5 is opened, the upper air inlet outer baffle 3, the upper air inlet middle baffle 4 and the lower air inlet middle baffle 6 are closed, the indoor air supply suction fan 15 is opened, and the heat-preservation heat-insulation roller shutter 2 is closed. The air with higher indoor temperature flows through the inner cavity channel under the action of the indoor air supply and suction fan 15, part of heat is absorbed and stored by the inner phase-change material 13, and the cooled air enters the indoor space from the upper air inlet. The longitudinal vortex generator 8 induces vortex to destroy the wall laminar flow, and heat exchange between the interlayer air and the inner side phase change material 13 is enhanced. The heat-preservation and heat-insulation roller shutter 2 can reduce the absorption of solar radiation heat penetrating through the glass cover plate 1, and meanwhile, the heat-preservation and heat-insulation roller shutter 2, the glass cover plate 1 and the heat storage wall body respectively form two closed air interlayers to reduce the transmission of outdoor heat into a room.
(4) Working condition at night in summer
The outer baffle 3 of the upper air inlet and the middle baffle 4 of the upper air inlet are opened, the inner baffle 5 of the upper air inlet and the middle baffle 6 of the lower air inlet are closed, the outdoor exhaust suction fan 14 is opened, the heat-preservation and heat-insulation roller shutter 2 is opened, and the north-direction window 17 is opened. The phase-change material 13 on the inner side is solidified to release stored heat, outdoor low-temperature air enters the room from the north window 17, and the indoor air heat and the phase-change material released heat are discharged out of the room under the action of the outdoor exhaust suction fan 14. The longitudinal vortex generator 8 induces vortex to destroy the laminar flow of the wall surface, and heat exchange between the interlayer air and the phase change material 13 on the inner side is enhanced. Meanwhile, the heat of the air in the outer cavity is transmitted to the outside through the glass, and the heat stored in the phase-change material 10 at the outer side is transmitted to the outside in a radiation mode.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (7)
1. A phase change heat collection-radiating wall system running under all working conditions is characterized by comprising a glass cover plate (1) arranged on a window body opposite to a northbound window (17) of a room, wherein a heat storage wall body (12) is arranged on the inner side of the glass cover plate (1), and a decorative plate (16) is arranged on the inner side of the heat storage wall body (12); an opening at the top end of the glass cover plate (1) is communicated with the outdoor, openings at the top end and the bottom end of the heat storage wall body (12) form a double-cavity channel, openings at the top end and the bottom end of the decorative plate (16) are communicated with a room, and an outdoor exhaust suction fan (14) and an indoor air supply suction fan (15) are arranged at the opening at the top end of the glass cover plate (1) and the opening at the top end of the decorative plate (16); the inner side of the glass cover plate (1) is provided with a heat-preservation and heat-insulation rolling curtain (2), and heating in winter and cooling in summer are realized by opening different operation modes in winter and summer;
the heat storage wall body (12) is characterized in that a heat insulation material layer (11), an outer phase change material (10), a punched aluminum plate (9) and a heat absorption coating (7) are sequentially arranged on the outer side of the heat storage wall body (12) from inside to outside, an inner phase change material (13) is arranged on the inner side of the heat storage wall body (12), longitudinal vortex generators (8) are arranged on the inner side surface of the inner phase change material (13) at an incident flow attack angle alpha, the longitudinal vortex generators (8) are triangular or rectangular planes with the same area and are in an alpha angle distribution structure, one plane is flatly attached to the surface of the inner phase change material (13), the other plane and the flat attached plane are in an alpha angle arrangement, and alpha is larger than 0 degrees and smaller than 90 degrees;
in winter operation mode, in winter: an upper air inlet outer baffle (3) is closed, an upper air inlet inner baffle (5), an upper air inlet middle baffle (4) and a lower air inlet middle baffle (6) are opened, an indoor air supply suction fan (15) is opened, and a heat preservation and insulation rolling curtain (2) is opened; in winter, at night: an upper air inlet outer baffle (3) is closed, an upper air inlet inner baffle (5), an upper air inlet middle baffle (4) and a lower air inlet middle baffle (6) are opened, an indoor air supply suction fan (15) is opened, and a heat preservation and insulation rolling curtain (2) is closed;
in summer operation mode, in summer: an upper air inlet inner baffle (5) is opened, an upper air inlet outer baffle (3), an upper air inlet middle baffle (4) and a lower air inlet middle baffle (6) are closed, an indoor air supply suction fan (15) is opened, and a heat preservation and insulation rolling curtain (2) is closed; and (3) in summer at night: an upper air inlet outer baffle (3) and an upper air inlet middle baffle (4) are opened, an upper air inlet inner baffle (5) and a lower air inlet middle baffle (6) are closed, an outdoor exhaust suction fan (14) is opened, a heat-preservation and heat-insulation rolling curtain (2) is opened, and a north window (17) is opened.
2. The phase-change heat collection-radiating wall system operating under all working conditions of claim 1, wherein the longitudinal vortex generators (8) are of a triangular wing type, a rectangular wing type, a triangular fin type or a rectangular fin type structure.
3. The phase-change heat collection-radiation wall system running under all working conditions as claimed in claim 2, wherein the opening direction of the attack angle alpha of the incident flow of the triangular wing-shaped structure and the rectangular wing-shaped structure is opposite to the laminar flow direction of the airflow.
4. The phase-change heat collection-radiating wall system running under all working conditions as claimed in claim 2, wherein the attack angle α of the triangular fin-shaped structure and the rectangular fin-shaped structure is arranged in the same direction as the laminar flow direction of the airflow.
5. The phase-change heat collecting-radiating wall system operating under all working conditions as claimed in claim 1, wherein the longitudinal vortex generators (8) are arranged in line, in staggered or staggered mode.
6. The phase-change heat collection-radiation wall system operated under all working conditions as claimed in claim 1, wherein the heat storage wall body (12) is provided with upper and lower air inlet intermediate baffles (4) and (6) at the top and the inner side of the double-cavity channel with the bottom opening, and the upper air inlet outer baffle (3) and the upper air inlet inner baffle (5) are respectively arranged at the positions corresponding to the installation positions of the outdoor exhaust air suction fan (14) and the indoor air supply suction fan (15).
7. The phase-change heat collecting-radiating wall system operating under all working conditions of claim 1, wherein a plurality of through holes are distributed on the punched aluminum plate (9) in an array manner, and the through holes are round holes.
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| CN201810369035.0A CN108589960B (en) | 2018-04-23 | 2018-04-23 | Phase-change heat collection-radiating wall system operated under all working conditions |
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| CN201810369035.0A CN108589960B (en) | 2018-04-23 | 2018-04-23 | Phase-change heat collection-radiating wall system operated under all working conditions |
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| CN108589960B true CN108589960B (en) | 2022-09-09 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761150A (en) * | 2010-01-19 | 2010-06-30 | 华北电力大学 | High-efficiency solar phase-change heat-accumulation heat-collection wall system |
| CN201680495U (en) * | 2009-10-30 | 2010-12-22 | 镇江新梦溪能源科技有限公司 | Wall-mounted solar heat collection-storage system |
| CN102444222A (en) * | 2011-10-31 | 2012-05-09 | 江西省科学院能源研究所 | Middle heat insulation type solar phase change thermal storage wall body system with double flow channels |
| CN102776959A (en) * | 2012-07-31 | 2012-11-14 | 华南理工大学 | Energy-saving solar energy combined modular split phase-changing house energy-saving system |
| CN105569213A (en) * | 2015-12-30 | 2016-05-11 | 西安交通大学 | Solar phase change heat storage wall and ventilation system provided with same |
| CN105735516A (en) * | 2016-02-20 | 2016-07-06 | 太原理工大学 | Heat storage type controllable double-channel ventilation heat preservation wall system and operation method thereof |
| KR20170057878A (en) * | 2015-11-17 | 2017-05-26 | 경상대학교산학협력단 | Air type solar heat collection device installed on pen |
| CN106836522A (en) * | 2017-03-01 | 2017-06-13 | 华中科技大学 | One kind self-regulation phase transformation Te Langbei walls |
| CN107313520A (en) * | 2017-06-24 | 2017-11-03 | 江西理工大学 | A kind of double-deck phase-change accumulation energy air-conditioning system based on Ventilating wall |
-
2018
- 2018-04-23 CN CN201810369035.0A patent/CN108589960B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201680495U (en) * | 2009-10-30 | 2010-12-22 | 镇江新梦溪能源科技有限公司 | Wall-mounted solar heat collection-storage system |
| CN101761150A (en) * | 2010-01-19 | 2010-06-30 | 华北电力大学 | High-efficiency solar phase-change heat-accumulation heat-collection wall system |
| CN102444222A (en) * | 2011-10-31 | 2012-05-09 | 江西省科学院能源研究所 | Middle heat insulation type solar phase change thermal storage wall body system with double flow channels |
| CN102776959A (en) * | 2012-07-31 | 2012-11-14 | 华南理工大学 | Energy-saving solar energy combined modular split phase-changing house energy-saving system |
| KR20170057878A (en) * | 2015-11-17 | 2017-05-26 | 경상대학교산학협력단 | Air type solar heat collection device installed on pen |
| CN105569213A (en) * | 2015-12-30 | 2016-05-11 | 西安交通大学 | Solar phase change heat storage wall and ventilation system provided with same |
| CN105735516A (en) * | 2016-02-20 | 2016-07-06 | 太原理工大学 | Heat storage type controllable double-channel ventilation heat preservation wall system and operation method thereof |
| CN106836522A (en) * | 2017-03-01 | 2017-06-13 | 华中科技大学 | One kind self-regulation phase transformation Te Langbei walls |
| CN107313520A (en) * | 2017-06-24 | 2017-11-03 | 江西理工大学 | A kind of double-deck phase-change accumulation energy air-conditioning system based on Ventilating wall |
Non-Patent Citations (3)
| Title |
|---|
| 太阳能空气集热器与相变墙复合采暖***试验研究;刘馨等;《土木工程学报》;20101215;第43卷;437-441 * |
| 夹芯墙相变保温层的热储存和热释放体系的探讨;尚建丽等;《硅酸盐通报》;20091015;第28卷(第05期);224-227 * |
| 被动式太阳能结合相变墙在苏北自然通风环境下的应用研究;黄婷等;《盐城工学院学报(自然科学版)》;20160620;第29卷(第02期);77-82 * |
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