Breathing wall enclosure structure with temperature and humidity coordinated control function and operation method

By combining the sandwich hollow wall matrix and the airflow control module with the four operating modes of the concentrating dehumidification module, the technical defects of the breathing wall in the coordinated control of temperature and humidity are solved, the efficient use of solar energy and the dynamic thermal insulation of the wall are achieved, and the service life of the building and the quality of the indoor environment are improved.

CN116446558BActive Publication Date: 2025-09-23HEFEI UNIV OF TECH
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Patent Information

Application Number
CN202211246497.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-12
Publication Date
2025-09-23
Estimated Expiration
2042-10-12

AI Technical Summary

Technical Problem

Existing breathing walls have technical defects in the coordinated control of temperature and humidity, which leads to a decrease in the thermal insulation performance of the wall, water vapor penetration, microbial growth and shortened building service life. In addition, the existing vapor and moisture-proof methods limit ventilation and dynamic thermal insulation capabilities.

Method used

It adopts a sandwich hollow wall matrix, an upper airflow control module and a lower airflow control module, combined with a concentrating dehumidification module, to achieve coordinated temperature and humidity control through four operating modes, including nighttime insulation and dehumidification in the heating season, daytime power generation and desorption heating in the heating season, nighttime heat dissipation and dehumidification in the cooling season, and daytime power generation, desorption and insulation in the cooling season, using solar energy for ultra-low power consumption control.

Benefits of technology

The coordinated control of temperature and humidity of the breathing wall is achieved, which improves the service life of the wall and the indoor thermal and humid environment, enhances the dynamic thermal insulation capacity, reduces energy consumption through concentrated photovoltaic power generation, and realizes efficient cascade utilization of solar energy.

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Abstract

The present invention discloses a breathing wall enclosure structure and operation method with a coordinated temperature and humidity control function, comprising a sandwich hollow wall base, an upper airflow control module, a concentrating dehumidification module, and a lower airflow control module; the sandwich hollow wall base comprises, from the inside to the outside, a porous breathable concrete wall panel, an air interlayer, and an ordinary concrete wall panel, the porous breathable concrete wall panel is fixedly connected to the ordinary concrete wall panel, and the ordinary concrete wall panel is provided with a module mounting channel that completely penetrates the thickness of the wall panel itself, the upper airflow control module and the lower airflow control module are respectively mounted on the upper and lower sides of the concentrating dehumidification module, and are jointly mounted in the module mounting channel. This solves the technical defects of traditional breathing walls in coordinated temperature and humidity control, and can improve the indoor thermal and humid environment while extending the service life of the wall.
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Description

Technical Field

[0001] The present invention relates to the field of building energy conservation, and in particular to a breathing wall enclosure structure with temperature and humidity coordinated control functions and an operation method thereof. Background Art

[0002] Energy shortages and environmental crises are common global challenges. Reducing building energy consumption and carbon emissions remains a pressing bottleneck. While natural or mechanical ventilation can reduce indoor temperatures in the summer, these energy-saving measures can also introduce significant noise and other issues, such as the introduction of external air pollutants. Breathing walls are a novel building energy-saving technology that dynamically alters the relative direction of airflow and heat flow within a porous breathing layer, altering its thermal performance. They also offer advantages such as fresh air filtration and noise isolation. A Chinese patent application, application number 201010509699.6, discloses an energy-saving, environmentally friendly, multifunctional breathing wall. The wall comprises double-layer transmissive glass, an air heating cavity, a solar radiation heat absorption plate, a main air inlet, a main air inlet guide baffle, lower air inlet louvers, a lower air inlet baffle, upper air inlet louvers, an upper air inlet baffle, an air cavity top baffle, an internal wall guide plate, a filter unit support plate, a porous medium filter unit, a crossflow fan, a silencer, air outlet louvers, an air outlet opening adjustment baffle, a lower air inlet baffle opening and closing control link, an upper air inlet baffle opening and closing control link, a cavity top baffle opening and closing control link, a wall base, and a glass panel fixing frame. The internal functional layer of the breathing wall typically has a high porosity, which makes it difficult for the breathing wall itself to effectively inhibit the penetration of water vapor into the wall and the room during ventilation. Furthermore, water vapor generated by people breathing indoors is easily absorbed by the breathing wall. It's worth noting that prolonged high humidity in breathing walls can lead to: 1) the growth of microorganisms such as bacteria, mold, and dust mites within the porous breathing layer, potentially causing allergies and other potential health issues in sensitive individuals; 2) a significant increase in the thermal conductivity of the wall material when damp, resulting in a decrease in insulation performance and increased energy consumption; and 3) condensation on the wall surface when exposed to cold, which can lead to peeling and termite infestation, significantly reducing the building's service life. Coordinated temperature and humidity control in breathing walls is key to addressing these shortcomings and enabling their large-scale deployment. However, existing vapor and moisture barrier methods are not suitable for achieving coordinated temperature and humidity control in breathing walls. For example: 1) Although adding structural layers such as waterproof layers or vapor barriers to the wall surface or inside the wall can prevent water or water vapor penetration, it also limits the special ventilation and dynamic thermal insulation capabilities of the breathing wall; 2) Although the use of hygroscopic materials such as porous silica gel and calcium chloride can play a role in controlling the humidity of the wall, the hygroscopic materials cannot be recycled because water vapor is difficult to desorb. Even if active desorption is carried out through means such as high-temperature heating, it will generate unnecessary additional building heat load during the cooling season, resulting in an increase in building energy consumption. Summary of the Invention

[0003] The purpose of the present invention is to address the technical defects existing in the prior art and provide a breathing wall enclosure structure and operation method with coordinated temperature and humidity regulation and control functions, which effectively solves the problem of coordinated temperature and humidity control faced in the dynamic thermal insulation process of breathing walls.

[0004] The technical solution adopted to achieve the purpose of the present invention is:

[0005] A breathing wall enclosure structure with temperature and humidity coordinated control function, comprising a sandwich hollow wall base, an upper airflow control module, a concentrating dehumidification module and a lower airflow control module;

[0006] Among them, the sandwich hollow wall matrix is ​​composed of a porous breathable concrete wall panel, an air layer and an ordinary concrete wall panel from the inside to the outside. The porous breathable concrete wall panel is fixedly connected to the ordinary concrete wall panel. The ordinary concrete wall panel is provided with a module installation channel that completely penetrates the thickness of the wall panel itself. The upper airflow control module and the lower airflow control module are respectively installed on the upper and lower sides of the concentrating dehumidification module, and are jointly installed in the module installation channel.

[0007] Preferably, the upper airflow control module and the lower airflow control module have the same structure, and are respectively composed of an airflow control module body and a fan. The airflow control module body is provided with an airflow duct. The fan is installed on the upper part of the airflow control module body and is connected to one end of the airflow duct. The other end of the airflow duct is located on the side of the airflow control module body, and the focusing dehumidification module is connected to the outdoor environment through the airflow duct.

[0008] Preferably, the concentrating dehumidification module includes a concentrating shaft, a connecting rod, glass, a ring track, a porous breathable concrete groove and a concentrating mirror. The porous breathable concrete groove has a vertically penetrating groove, and the concentrating mirror with additional rollers on the upper and lower sides is installed in the groove. The upper and lower airflow control modules are combined with the porous concrete groove to form the ring track. The concentrating mirror slides in a controlled manner in the ring track. The concentrating shaft is located at the focus of the groove and is connected to the concentrating mirror through a connecting rod to form a whole. The concentrating shaft is driven to rotate by a stepping motor.

[0009] Preferably, the upper and lower sides of the focusing axis are rotatably connected to the upper airflow control module and the airflow control module body in the upper airflow control module respectively, the stepper motor is located in the upper airflow control module or the upper airflow control module, and the output end of the stepper motor is connected to one end of the focusing axis.

[0010] Preferably, the concentrating axis includes a concentrating solar energy conversion element, a hygroscopic material layer, a heat conduction member and a vertical metal rod. The heat conduction member is fixed on the vertical metal rod. The concentrating solar energy conversion element is installed on the inside of the heat conduction member, and the hygroscopic material is installed on the outside. The current generated by the photoelectric conversion is stored through a wire.

[0011] Preferably, the concentrated solar energy conversion element is a concentrated solar cell or an ordinary solar photovoltaic cell or a dark coating; the hygroscopic material is porous silica gel; and the heat conduction member is a heat-conducting copper tube or a heat-conducting aluminum tube.

[0012] Preferably, L-shaped module connectors are pre-installed on the upper and lower surfaces of the module installation channel respectively by bolts.

[0013] Preferably, the upper and lower sides of the concentrating dehumidification module are respectively connected with a bolt connection base by bolts, and the upper and lower airflow control modules corresponding to the bolt connection base are provided with corresponding limit grooves. The bolt connection base is placed in the limit groove, and the upper and lower airflow control modules are fixed to the L-shaped module connector by bolts.

[0014] Preferably, an axial sealing strip installation groove is provided on the inner surface of the module installation channel, and the upper airflow control module, the concentrating dehumidification module and the lower airflow control module are sealed on the ordinary concrete wall panel by the sealing strip.

[0015] An operating method for a breathing wall enclosure structure with coordinated temperature and humidity control functions includes four operating modes: a nighttime heat preservation and dehumidification mode in the heating season, a daytime power generation and desorption heating mode in the heating season, a nighttime heat dissipation and dehumidification mode in the cooling season, and a daytime power generation and desorption insulation mode in the cooling season.

[0016] In the nighttime heat preservation and dehumidification mode during the heating season, the upper and lower airflow control modules simultaneously deliver a small amount of fresh air into the airflow cavity of the concentrating dehumidification module. The fresh air enters the room from the outside through the airflow cavity of the concentrating dehumidification module, the porous breathable concrete trough, the air interlayer, and the porous breathable concrete wall panels. During this process, moisture in the porous breathable concrete wall panels and the porous breathable concrete trough is adsorbed onto the porous silica gel through a process of water vapor reverse osmosis, thereby ensuring that the humidity inside the wall does not increase significantly.

[0017] During the heating season, the daytime power generation and desorption heating mode: the lower airflow control module conveys air inward, and the upper airflow control module exhausts air outward. The fresh air passes through the airflow cavity of the concentrating dehumidification module and is discharged from the upper airflow control module outside the wall. The concentrating mirror tracks and reflects sunlight to the concentrating cell to generate electricity. The high-temperature waste heat generated by power generation is conducted to the porous silica gel through the copper tube to desorb moisture. The water vapor generated by evaporation is discharged from the upper ventilation valve outside the wall with the airflow. This process can significantly reduce the temperature of the concentrating cell and increase the power generation efficiency of the concentrating cell. After the moisture on the silica gel is desorbed, Switch the fan status and make the upper airflow control module and the lower airflow control module simultaneously deliver fresh air to the airflow cavity of the concentrating dehumidification module. The fresh air passes through the airflow cavity of the concentrating dehumidification module, the porous breathable concrete groove, the air layer, and the porous breathable concrete wall panel in sequence and then enters the room. In this process, the heat flow in the wall is opposite to the direction of the airflow. The outdoor cold air can recover the heat loss generated by heat conduction through the wall when flowing through the wall, thereby reducing the dynamic heat transfer coefficient U value of the wall at night during the heating season, and the overall thermal performance of the wall is improved.

[0018] Nighttime heat dissipation and dehumidification mode during the cooling season: If the indoor temperature is higher than the outdoor temperature, the upper and lower airflow modules simultaneously exhaust air to the outdoors. Air enters the room through other air inlets and outlets in the building, in addition to the breathing wall itself, and then passes through the porous concrete wall panels, air gaps, porous concrete troughs, and the cavity inside the concentrating dehumidification module before being discharged outdoors. If the indoor temperature is lower than the outdoor temperature, the airflow direction is reversed, and the upper and lower airflow control modules simultaneously deliver air to the room. Fresh air from the outdoors passes through the air flow cavity of the concentrating dehumidification module, the porous concrete troughs, air gaps, and the porous concrete wall panels before entering the room. Regardless of whether the indoor temperature is higher than the outdoor temperature, the heat flow in the wall is in the same direction as the airflow. The cooling energy from the outdoor air ultimately penetrates the wall through the airflow, increasing the wall's dynamic heat transfer coefficient (U-value), thereby improving the wall's overall heat dissipation performance. During this process, moisture in the porous concrete wall panels and the porous concrete troughs is adsorbed onto the porous silica gel through a process of water vapor reverse osmosis, thereby ensuring that the humidity inside the wall does not increase significantly.

[0019] During the cooling season, in the daytime power generation, desorption and insulation mode, the upper airflow control module and the lower airflow control module discharge air to the outside at the same time. The air flows from the room through the porous breathable concrete wall panels, the air interlayer, the porous breathable concrete trough and the cavity inside the concentrating dehumidification module and is discharged to the outside. At this time, the heat flow in the wall is opposite to the direction of the airflow. By recycling the cold air flowing through the wall, the wall temperature is reduced and the dynamic heat transfer coefficient U value of the wall is reduced, thereby improving the overall thermal insulation performance of the wall. The concentrating mirror tracks and reflects sunlight to the concentrating cell to generate electricity. The high-temperature waste heat generated by power generation is conducted to the porous silica gel through the copper tube to desorb moisture. The water vapor generated by evaporation is discharged to the outside through the upper and lower ventilation valves along with the airflow. This process can significantly reduce the temperature of the concentrating cell and increase the power generation efficiency of the concentrating cell.

[0020] Compared with the existing technology, the beneficial effects of the present invention are: 1) The breathing wall structure of the present invention has the function of ultra-low power consumption temperature and humidity coordinated control using solar energy, which solves the technical defects of traditional breathing walls in temperature and humidity coordinated control, and can improve the indoor thermal and humidity environment while improving the service life of the wall; 2) The breathing wall structure of the present invention has dynamic thermal insulation capabilities that can actively adapt to environmental changes, which solves the technical contradiction that traditional enclosure structures cannot take into account both the heat dissipation performance and thermal insulation performance of the wall; 3) The breathing wall structure of the present invention can use the waste heat generated by concentrated photovoltaic cells to perform ultra-low energy consumption moisture desorption, and during the desorption process, the temperature of the concentrated photovoltaic cells can be reduced by evaporative cooling, thereby improving the photoelectric conversion efficiency of the concentrated photovoltaic cells, and realizing efficient cascade utilization of solar energy in the process of "ventilation-temperature control-dehumidification-power generation-desorption". BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure shows a schematic diagram of a breathing wall enclosure structure with temperature and humidity coordinated control function according to the present invention;

[0022] Figure 2 Shown is an exploded view of a single body of the breathing wall enclosure structure of the present invention;

[0023] Figure 3a Shown Figure 1 Middle AA section view;

[0024] Figure 3b Shown Figure 3a A partial enlarged view of the middle part;

[0025] Figure 4 Shown Figure 1 Middle BB section view;

[0026] Figure 5 shows a schematic diagram of the nighttime heat preservation and dehumidification mode during the heating season;

[0027] Figure 6 shows a schematic diagram of the daytime power generation and dehumidification heating mode during the heating season;

[0028] Figure 7 shows a schematic diagram of the heat dissipation and dehumidification mode during the night in the cooling season;

[0029] FIG8 shows a schematic diagram of the daytime power generation, dehumidification and insulation mode in the cooling season. DETAILED DESCRIPTION

[0030] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The present invention has a breathing wall enclosure structure with temperature and humidity coordinated control function. Figure 1-4 As shown, the structure primarily consists of a sandwich hollow wall base 1, an upper airflow control module 2, a concentrating dehumidification module 3, and a lower airflow control module 4. The sandwich hollow wall base 1 is primarily composed of three distinct structural layers: from the inside out, a porous breathable concrete wall panel 11, an air space 12, and a conventional concrete wall panel 13. After air passes through the porous breathable concrete grooves 35 from the airflow cavity, it diffuses evenly within the air space 12 before penetrating the porous breathable concrete wall panel 11 and entering the room. The same principle applies to airflow from indoors to outdoors. If the air layer 12 is eliminated and the ordinary concrete wall panel 13 is directly bonded to the porous breathable concrete wall panel 11, the porous concrete groove 35 and the porous breathable concrete wall panel 11 made of the same material will become a whole, and in fact form an "irregular porous breathable concrete block". Considering that the penetration resistance is directly related to the thickness of the porous breathable concrete block, and the thickness of the above-mentioned "irregular porous breathable concrete block" at different positions is not consistent, this is actually not conducive to the uniform penetration of airflow through the entire porous breathable concrete wall panel 11. Most of the airflow will directly pass through the area adjacent to the porous concrete wall panel 11 and the porous concrete groove 35, while there will be only a small amount or even no airflow passing through the area of ​​the porous concrete wall panel 11 far away from the porous concrete groove 35. If the airflow cannot penetrate evenly through the entire porous concrete wall panel 11, the porous concrete wall panel in the area farther away from the porous concrete groove 35 will not be able to fully exert its ventilation, filtration and dynamic insulation functions due to the large penetration resistance and small airflow rate. At the same time, the area with a larger airflow rate of the porous concrete wall panel 11 will accumulate more water vapor during the airflow process, which will cause the service life of the entire composite wall panel to be significantly reduced.

[0032] The porous breathable concrete wall panel 11 is fixedly connected to the conventional concrete wall panel 13 via wall panel connectors 14. The conventional concrete wall panel 13 is provided with a module mounting channel 15 that extends completely through the thickness of the wall panel. L-shaped module connectors 16 are pre-installed on the upper and lower surfaces of the module mounting channel 15 using bolts 161. The concentrating dehumidification module 3 is connected to the upper airflow control module 2 and the lower airflow control module 4 via bolts 38 and bolted to the bolted base 45. After the upper airflow control module 2, the concentrating dehumidification module 3, and the lower airflow control module 4 are securely connected, the L-shaped module connectors 16 are fixed to the upper airflow control module 2 and the lower airflow control module 4 via bolts 46. Axial sealing strip mounting grooves 151 are defined on the inner surface of the module mounting channel 15. The upper airflow control module 2, the concentrating dehumidification module 3, and the lower airflow control module 4 are sealed to the conventional concrete wall panel 13 via sealing strips 152.

[0033] The concentrating dehumidification module 3 has a porous concrete trough 35 with a vertically extending groove. A concentrating mirror 36 with attached rollers 37 is mounted within the groove. The concentrating mirror 36 can slide controlled within a ring track 34, a semicircular ring-shaped groove formed by the porous concrete trough 35 and semicircular protrusions on the upper and lower airflow control modules. Because the concentrating mirror 36 does not completely cover the entire inner wall of the groove, air can be controlled to penetrate the porous concrete trough 35, allowing bidirectional flow between the groove and the air layer 12. A concentrating shaft 31 is located at the focal point of the groove and is connected to the concentrating mirror 36 by a connecting rod 32. The concentrating shaft 31 can rotate under the control of a stepper motor 315 mounted above or below the concentrating shaft 31. Double-glazed glass 33 is installed on the outside of the porous concrete trough 35, forming an airflow cavity with the groove.

[0034] The upper airflow control module 2 and the lower airflow control module 4 have similar structures and compositions. Both are connected to the focusing dehumidification module 3 and the outdoor environment through an airflow duct 43, and the airflow circulation and direction are controlled by a fan 44. A rain shield 41 and a dust net 42 are provided at the wall vents from the outside to the inside.

[0035] The heat conduction member 313 in the focusing axis 31 in the focusing dehumidification module 3 is fixed to a vertical metal rod 314, a focusing solar energy conversion element 311 is installed on the inside thereof, a hygroscopic material 312 is installed on the outside thereof, and the current generated by the photoelectric conversion is drawn out through a wire 39 for storage.

[0036] Preferably, the concentrated solar energy conversion element 311 is a concentrated solar cell, but may also be an ordinary solar photovoltaic cell or a dark coating.

[0037] Preferably, the hygroscopic material 312 is porous silica gel.

[0038] Preferably, the heat conducting member 313 is a heat conducting copper tube, or may be a heat conducting aluminum tube.

[0039] As shown in Figures 5-8, the breathing wall enclosure structure with temperature and humidity coordinated control function of the present invention has the following four different operating modes.

[0040] Heating season night insulation and dehumidification mode: Figure 5a and Figure 5b As shown, the upper airflow control module 2 and the lower airflow control module 4 simultaneously deliver a small amount of fresh air to the airflow cavity of the concentrating dehumidification module 3. The fresh air enters the room from the outside through the airflow cavity of the concentrating dehumidification module 3, the porous breathable concrete groove 35, the air interlayer 12, and the porous breathable concrete wall panel 11. Since the heat flow in the wall is in the opposite direction to the fresh air flow, the outdoor cold air can recover the heat loss caused by heat conduction through the wall when flowing through the wall, thereby reducing the dynamic heat transfer coefficient U value of the wall at night during the heating season and improving the overall thermal performance of the wall. Figure 5c As shown, during the above process, the moisture in the porous breathable concrete wallboard 11 and the porous breathable concrete tank 35 is adsorbed on the porous silica gel 312 through the water vapor reverse osmosis process, thereby ensuring that the humidity inside the wall will not increase significantly.

[0041] Daytime power generation and desorption heating mode during the heating season: Figure 6a As shown, the lower air flow control module 4 conveys air inwards, and the upper air flow control module 2 exhausts air outwards, and the fresh air passes through the air flow cavity of the concentrating dehumidification module 3 and exits the wall of the upper air flow control module 2. Figure 6b As shown, the concentrating mirror 36 tracks and reflects sunlight to the concentrating cell 311 to generate electricity. The high-temperature waste heat generated by power generation is transferred to the porous silica gel 312 through the copper tube 313 to desorb water. The water vapor generated by evaporation is discharged outside the wall through the upper ventilation valve along with the air flow. This process can significantly reduce the temperature of the concentrating cell and increase the power generation efficiency of the concentrating cell. Figure 6c and Figure 6d As shown, after the silica gel has desorbed moisture, the fan status is switched, and the upper airflow control module 2 and the lower airflow control module 4 are simultaneously configured to deliver fresh air into the airflow cavity of the concentrating dehumidification module 3. The fresh air then passes through the airflow cavity of the concentrating dehumidification module 3, the porous breathable concrete groove 35, the air interlayer 12, and the porous breathable concrete wall panel 11 before entering the room. At this point, the waste heat generated by the concentrating cell 311 is no longer used solely to heat the silica gel, but is also used to heat the fresh air. During this process, the heat flow within the wall is in the opposite direction of the airflow, and the outdoor cold air can recover the heat lost through heat conduction through the wall as it flows through the wall. This reduces the dynamic heat transfer coefficient (U value) of the wall at night during the heating season, improving the overall thermal performance of the wall.

[0042] Night heat dissipation and dehumidification mode in cooling season: Figure 7aand 7b As shown, if the indoor temperature is higher than the outdoor temperature, the upper airflow module 2 and the lower airflow module 4 discharge air to the outside at the same time, and the airflow enters the room from other air inlets and outlets opened in the building except for the breathing wall, and then passes through the porous breathable concrete wall panel 11, the air interlayer 12, the porous breathable concrete groove 35, and the cavity inside the concentrating dehumidification module and is discharged to the outside. If the indoor temperature is lower than the outdoor temperature, the above-mentioned airflow direction is reversed. The upper airflow control module 2 and the lower airflow control module 4 deliver air to the room at the same time, and the fresh air from the outside passes through the airflow cavity of the concentrating dehumidification module 3, the porous breathable concrete groove 35, the air interlayer 12 and the porous breathable concrete wall panel 11 and then enters the room. Regardless of whether the indoor temperature is higher than the outdoor temperature, the heat flow in the wall is in the same direction as the airflow, and the cold air from the outdoor air eventually penetrates into the wall through the airflow and increases the dynamic heat transfer coefficient U value of the wall, thereby improving the overall heat dissipation performance of the wall. As shown Figure 7c As shown, during the above process, the moisture in the porous breathable concrete wallboard 11 and the porous breathable concrete tank 35 is adsorbed on the porous silica gel 312 through the water vapor reverse osmosis process, thereby ensuring that the humidity inside the wall will not increase significantly.

[0043] Daytime power generation, desorption and insulation mode in cooling season: Figure 8a and Figure 8b As shown, the upper airflow control module 2 and the lower airflow control module 4 simultaneously exhaust air to the outside. The air flows from the room through the porous breathable concrete wall panel 11, the air interlayer 12, the porous breathable concrete groove 35, and the cavity inside the concentrating dehumidification module and then out. At this time, the heat flow in the wall is opposite to the direction of the airflow. By recycling the cold energy of the exhaust airflow flowing through the wall, the wall temperature can be reduced and the dynamic heat transfer coefficient U value of the wall can be reduced, thereby improving the overall thermal insulation performance of the wall. Figure 8c As shown, the concentrating mirror 36 tracks and reflects sunlight to the concentrating cell to generate electricity. The high-temperature waste heat generated by power generation is conducted to the porous silica gel 312 through the copper tube 313 to desorb moisture. The water vapor generated by evaporation is discharged to the outside through the upper and lower ventilation valves along with the air flow. This process can significantly reduce the temperature of the concentrating cell and increase the power generation efficiency of the concentrating cell.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A breathing wall enclosure structure with temperature and humidity coordinated control function, characterized in that: It includes a sandwich hollow wall matrix, an upper airflow control module, a concentrating dehumidification module and a lower airflow control module; The interlayer hollow wall matrix comprises, from the inside to the outside, a porous breathable concrete wall panel, an air layer, and an ordinary concrete wall panel. The porous breathable concrete wall panel is fixedly connected to the ordinary concrete wall panel. The ordinary concrete wall panel is provided with a module mounting channel that completely penetrates the thickness of the wall panel itself. The upper airflow control module and the lower airflow control module are respectively installed on the upper and lower sides of the concentrating dehumidification module and are installed together in the module mounting channel. The upper airflow control module and the lower airflow control module have the same structure, and are respectively composed of an airflow control module body and a fan. The airflow control module body is provided with an airflow duct. The fan is installed on the upper part of the airflow control module body and is connected to one end of the airflow duct. The other end of the airflow duct is located on the side of the airflow control module body, and the concentrating dehumidification module is connected to the outdoor environment through the airflow duct. The concentrating dehumidification module includes a concentrating shaft, a connecting rod, glass, a ring track, a porous breathable concrete groove and a concentrating mirror. The porous breathable concrete groove has a vertically penetrating groove, and the concentrating mirror with upper and lower rollers is installed in the groove. The upper and lower airflow control modules are combined with the porous concrete groove to form the ring track. The concentrating mirror slides in a controlled manner in the ring track. The concentrating shaft is located at the focus of the groove and is connected to the concentrating mirror through a connecting rod to form a whole. The concentrating shaft is driven to rotate by a stepping motor.

2. The breathing wall enclosure structure with temperature and humidity coordinated control function according to claim 1 is characterized in that: The upper and lower sides of the focusing axis are rotatably connected to the airflow control module body in the upper airflow control module and the lower airflow control module respectively. The stepper motor is located in the upper airflow control module or the lower airflow control module, and the output end of the stepper motor is connected to one end of the focusing axis.

3. The breathing wall enclosure structure with temperature and humidity coordinated control function according to claim 1 or 2 is characterized in that: The concentrating axis includes a concentrating solar energy conversion element, a hygroscopic material layer, a heat conduction member and a vertical metal rod. The heat conduction member is fixed on the vertical metal rod. The concentrating solar energy conversion element is installed on the inside of the heat conduction member, and the hygroscopic material layer is installed on the outside. The current generated by the photoelectric conversion is stored through a wire.

4. The breathing wall enclosure structure with temperature and humidity coordinated control function according to claim 3 is characterized in that: The concentrated solar energy conversion element is a concentrated solar cell or a common solar photovoltaic cell or a dark coating; the moisture absorbing material layer is porous silica gel; and the heat conducting member is a heat conducting copper tube or a heat conducting aluminum tube.

5. The breathing wall enclosure structure with temperature and humidity coordinated control function according to claim 1 is characterized in that: The upper and lower surfaces of the module installation channel are respectively pre-installed with L-shaped module connectors by bolts.

6. The breathing wall enclosure structure with temperature and humidity coordinated control function according to claim 5 is characterized in that: The upper and lower sides of the concentrating dehumidification module are respectively connected to a bolt connection base by bolts, and the upper and lower airflow control modules corresponding to the bolt connection base are provided with corresponding limit grooves. The bolt connection base is placed in the limit groove, and the upper and lower airflow control modules are fixed to the L-shaped module connector by bolts.

7. The breathing wall enclosure structure with temperature and humidity coordinated control function according to claim 1 is characterized in that: The inner surface of the module installation channel is provided with an axial sealing strip installation groove, and the upper airflow control module, the concentrating dehumidification module and the lower airflow control module are sealed on the ordinary concrete wall panel through the sealing strip.

8. A method for operating a breathing wall enclosure structure with temperature and humidity coordinated control function according to any one of claims 1 to 7, characterized in that: It includes four operating modes: nighttime heat preservation and dehumidification mode in the heating season, daytime power generation and desorption heating mode in the heating season, nighttime heat dissipation and dehumidification mode in the cooling season, and daytime power generation and desorption insulation mode in the cooling season. In the nighttime heat preservation and dehumidification mode during the heating season, the upper and lower airflow control modules simultaneously deliver a small amount of fresh air into the airflow cavity of the concentrating dehumidification module. The fresh air enters the room from the outside through the airflow cavity of the concentrating dehumidification module, the porous breathable concrete trough, the air interlayer, and the porous breathable concrete wall panels. During this process, moisture in the porous breathable concrete wall panels and the porous breathable concrete trough is adsorbed onto the porous silica gel through a process of water vapor reverse osmosis, thereby ensuring that the humidity inside the wall does not increase significantly. During the heating season, the daytime power generation and desorption heating mode: the lower airflow control module conveys air inward, and the upper airflow control module exhausts air outward. The fresh air passes through the airflow cavity of the concentrating dehumidification module and is discharged from the upper airflow control module outside the wall. The concentrating mirror tracks and reflects sunlight to the concentrating cell to generate electricity. The high-temperature waste heat generated by power generation is conducted to the porous silica gel through the copper tube to desorb moisture. The water vapor generated by evaporation is discharged from the upper ventilation valve outside the wall with the airflow. This process can significantly reduce the temperature of the concentrating cell and increase the power generation efficiency of the concentrating cell. After the moisture on the silica gel is desorbed, Switch the fan status and enable the upper and lower airflow control modules to simultaneously deliver fresh air into the airflow cavity of the concentrating dehumidification module. The fresh air then passes through the airflow cavity of the concentrating dehumidification module, the porous breathable concrete groove, the air interlayer, and the porous breathable concrete wall panel before entering the room. During this process, the heat flow in the wall is opposite to the direction of the airflow. When the outdoor cold air flows through the wall, it can recover the heat loss caused by heat conduction through the wall, thereby reducing the dynamic heat transfer coefficient U value of the wall at night during the heating season and improving the overall thermal performance of the wall. Night heat dissipation and dehumidification mode in the cooling season: If the indoor temperature is higher than the outdoor temperature, the upper air flow control module and the lower air flow control module discharge air to the outside at the same time. The air enters the room from other air inlets and outlets opened in the building except for the breathing wall, and then passes through the porous breathable concrete wall panels, air interlayers, porous breathable concrete grooves, and the cavity inside the concentrating dehumidification module and is discharged to the outside. If the indoor temperature is lower than the outdoor temperature, the above-mentioned air flow direction is reversed, and the upper air flow control module and the lower air flow control module simultaneously deliver air to the room. Fresh air from the outside passes through the air flow cavity of the concentrating dehumidification module, the porous breathable concrete grooves, air interlayers and the porous breathable concrete wall panels in turn and enters the room. Regardless of whether the indoor temperature is higher than the outdoor temperature, the heat flow in the wall is in the same direction as the air flow. The cold air from the outdoor air finally penetrates into the wall through the air flow and increases the dynamic heat transfer coefficient U value of the wall, thereby improving the overall heat dissipation performance of the wall. In the above process, the moisture in the porous breathable concrete wall panels and the porous breathable concrete grooves is adsorbed on the porous silica gel through the water vapor reverse osmosis process, thereby ensuring that the humidity inside the wall does not increase significantly. During the cooling season, in the daytime power generation, desorption and insulation mode, the upper airflow control module and the lower airflow control module discharge air to the outside at the same time. The air flows from the room through the porous breathable concrete wall panels, the air interlayer, the porous breathable concrete trough and the cavity inside the concentrating dehumidification module and is discharged to the outside. At this time, the heat flow in the wall is opposite to the direction of the airflow. By recycling the cold air flowing through the wall, the wall temperature is reduced and the dynamic heat transfer coefficient U value of the wall is reduced, thereby improving the overall thermal insulation performance of the wall. The concentrating mirror tracks and reflects sunlight to the concentrating cell to generate electricity. The high-temperature waste heat generated by power generation is conducted to the porous silica gel through the copper tube to desorb moisture. The water vapor generated by evaporation is discharged to the outside through the upper and lower ventilation valves along with the airflow. This process can significantly reduce the temperature of the concentrating cell and increase the power generation efficiency of the concentrating cell.

Citation Information

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