CN110792199A - Active energy-saving wall for passive house and energy-saving building - Google Patents
Active energy-saving wall for passive house and energy-saving building Download PDFInfo
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- CN110792199A CN110792199A CN201911146248.8A CN201911146248A CN110792199A CN 110792199 A CN110792199 A CN 110792199A CN 201911146248 A CN201911146248 A CN 201911146248A CN 110792199 A CN110792199 A CN 110792199A
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- 238000009423 ventilation Methods 0.000 claims abstract description 33
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- 238000007789 sealing Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 230000001965 increasing effect Effects 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 3
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- 239000002356 single layer Substances 0.000 claims description 2
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- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
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- 238000005192 partition Methods 0.000 description 2
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- 239000011150 reinforced concrete Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
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- 239000002131 composite material Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 239000006260 foam Substances 0.000 description 1
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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
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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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
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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
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—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 using natural energy, e.g. solar energy, energy from the ground using solar energy
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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Abstract
In the existing passive houses and various energy-saving buildings, the used walls are all made of building materials and structures with the best heat insulation performance, so that the heat insulation performance of the walls is enhanced as much as possible; the invention relates to an active energy-saving wall for passive rooms and energy-saving buildings, which is characterized in that according to the orientation directions of building floors and walls and the positions of rooms, building outer walls are divided into units which correspond to the rooms and are provided with temperature control mechanisms, each unit is composed of an inner wall body which has strong heat insulation capacity and is provided with ventilation holes for opening and closing a valve controllably at the upper part and the lower part, an outer wall body which has strong heat conduction capacity, a surrounding frame which is sealed at the periphery and a cavity of a sandwich wall, and air in the cavity of the sandwich wall can flow up and down or be static through automatic temperature control of the units in different states according to the requirements of indoor temperature rise or temperature fall, so that the contribution to indoor temperature rise or temperature fall is realized, or only the heat preservation capacity is enhanced.
Description
The technical field is as follows: the invention belongs to the technical field of building energy conservation.
(II) background technology: the concept of "passive house" construction was established on the basis of low energy consumption buildings in the last 80 th century of germany. "Passive room" buildings are buildings that maintain a comfortable indoor thermal environment without the use of active heating and air conditioning systems, and are also known as passive ultra-low energy buildings. The building integrates the building and the energy-saving technology, greatly improves the heat-insulating property and the air tightness of the building, and greatly reduces the energy requirement of the building for actively facing outwards. It can also be said that this is an energy-saving building that creates a space relatively isolated from the outside by heat preservation and sealing technology, and recovers and recycles the heat generated by sunlight, terrestrial heat, household appliances, even human body itself through energy exchange equipment.
As for the wall used by the energy-saving building, the wall used for the building of the passive house has the outstanding characteristics of good heat preservation and insulation performance and air tightness. The wall is a common characteristic of various energy-saving buildings. In order to provide good thermal insulation, the wall is designed to be as thick as possible, or building materials with good thermal insulation properties are selected or a multi-layer composite structure is used to reduce the thermal conductivity of the wall, i.e. to enhance the thermal insulation of the wall. Particularly, a layer of foam material heat insulation layer with a metal net and an outer wall skin is compounded outside a masonry or reinforced concrete wall, and is a technical measure for enhancing the heat insulation performance of the wall which is commonly used in recent years. The good heat preservation performance is helpful to obviously separating the indoor and outdoor temperature environment, so that the indoor temperature is not influenced too much by the outdoor environment temperature and the change thereof.
(III) the invention content: the invention provides an active energy-saving wall for passive rooms and energy-saving buildings. The wall not only aims at improving the heat insulation performance of the wall, but also can fully utilize the indoor and outdoor temperature difference through special structural design, thereby actively increasing the efficiency for realizing the purpose of indoor temperature rise or temperature reduction. The active energy-saving wall is characterized in that: according to the orientation (east, west, south and north) of the floor and wall and the position of each room, an independent inner wall body which is divided into an inner wall body with stronger heat insulation capability, ventilation holes at the upper part and the lower part and is provided with a controllable valve capable of being opened or closed at the ventilation hole, an active energy-saving wall unit structure which is formed by a sealed outer wall body with stronger heat conduction capability and strength and composed of a weather-resistant metal plate or a single-layer glass plate or a natural stone plate or an artificial outer wall plate, a surrounding sealed frame which is arranged between the inner wall body and the outer wall body and has supporting connection function and weather resistance durability, and a sandwiched wall cavity which is formed by the inner wall body, the outer wall body and the surrounding sealed frame, and a temperature sensor which can respectively detect the temperature of the sandwiched wall cavity and the indoor air temperature is arranged at the controllable valve, and the independent branch temperature control mechanism of this unit that links with total temperature control mechanism mutually can carry out total control for the needs of indoor intensification or cooling according to passive room or energy-conserving building owner to make each initiative energy-conserving wall unit can be according to the contrast situation of the air temperature in this unit double-layered wall cavity and indoor air temperature, control opening or closing of upper and lower valve respectively: if the temperature of the unit with the air temperature lower than the indoor air temperature is reduced, the upper and lower valves of the wall body in the unit can be opened through the automatic temperature control mechanism, so that the air in the cavity of the double-wall can continuously flow from top to bottom to the indoor, and in the flowing process, the air and the outdoor cooler air are subjected to heat exchange through an outer wall which is easy to transfer heat, and the indoor air is reduced; for the unit with the air temperature in the cavity of the double-wall higher than the indoor air temperature, the upper and lower movable doors of the wall body in the unit are automatically closed through the automatic temperature control mechanism of the unit, so that the air in the cavity of the double-wall of the unit can not flow and only plays a passive role in increasing the heat insulation effect; if in order to heat up, for the unit with the air temperature in the cavity of the double-wall higher than the indoor air temperature, the upper and lower movable doors of the wall body in the unit are opened through the automatic temperature control mechanism of the unit, so that the air in the cavity of the double-wall can continuously flow from bottom to top indoors, and in the flowing process, the air exchanges heat with the outdoor hotter air through an outer wall which is easy to transfer heat, and the temperature of the indoor air is raised; for the unit with the air temperature in the cavity of the double-wall lower than the indoor air temperature, the upper and lower valves of the wall body in the unit are automatically closed through the temperature automatic control mechanism of the unit, so that the air in the cavity of the double-wall of the unit can not flow, the heat exchange of the indoor air and the outdoor air through the flow of the air in the cavity of the double-wall is stopped, and the passive effect of increasing the heat insulation effect is only achieved.
The invention constructs units (energy-saving units for short) of the active energy-saving wall according to different layers (floors) of the building, and the upper part and the lower part of the units are not communicated with each other. And in the building of each floor, the active energy-saving units are respectively constructed according to the corresponding parts of the rooms where the outer walls are located. The partitions are not communicated with each other. Each energy-saving unit is composed of an inner wall body with good heat insulation performance, an outer wall body with good heat transfer performance, a surrounding frame with good sealing performance and a cavity of a sandwich wall surrounded by the surrounding frame. In general, the air layer in the cavity of the double-wall can play a certain role in heat preservation and insulation. And holes which can lead the air in the cavity of the double-wall to flow upwards or downwards for ventilation are arranged at the upper part and the lower part of the inner wall body with good heat insulation property. The upper and lower holes are provided with valves capable of controlling opening and closing. And the opening and closing of the upper valve and the lower valve of each energy-saving unit are controlled by the automatic temperature control system independent of each energy-saving unit. When the upper and lower valves are opened, the air in the cavity of the double-wall can communicate with the indoor air and exchange heat with the outdoor air through the outer wall which is easy to transfer heat in the flowing process; when the valve is closed, the air in the cavity of the double-wall can not be communicated with the indoor air, and only the function of enhancing the heat insulation performance of the wall is achieved.
The controllable valve is provided with a temperature sensor which can respectively detect the temperature of the cavity of the sandwich wall and the indoor air, and a branch temperature control mechanism which is linked with the overall temperature control mechanism and is independent of the unit, so that the overall control can be carried out according to the requirement and the instruction for heating or cooling the indoor space, and each energy-saving wall unit in different conditions can be automatically distinguished and controlled, so that each energy-saving wall unit can control the opening or closing of the upper and lower valves of the wall body in the subarea according to the comparison condition of the air temperature in the cavity of the sandwich wall and the indoor air temperature of the unit and the requirement and the instruction for heating or cooling the indoor space.
When needs are indoor intensification, put total temperature control mechanism at the shelves that heat up, the independent branch temperature control mechanism of each unit that is linked together with total temperature control mechanism just can be according to the instruction, according to the temperature in this unit double-layered wall cavity and the contrast of who is high and low of indoor temperature, the upper and lower valve of wall body is opened and is closed in the decision unit: if the air temperature in the cavity of the unit double-wall is higher than the indoor air temperature, the valve is opened, so that the air with the air temperature higher than the indoor air temperature in the cavity of the unit double-wall can flow from bottom to top, enter the room to heat the room, and continuously exchange heat with the outer wall and the outer wall which is separated from the outer wall and easy to conduct heat in the flowing process and the hot outdoor air; in the unit with the air temperature lower than the indoor air temperature in the cavity of the double-wall, the upper and lower movable doors of the inner wall body are closed, air with the air temperature lower than the indoor air temperature in the cavity of the double-wall of the unit cannot enter the room, and the air temperature of the outdoor air cannot influence the room.
When needs are indoor cooling, put the shelves of cooling down with total temperature control mechanism, the independent branch temperature control mechanism of each unit that is linked together with total temperature control mechanism just can be according to the temperature in this unit double-layered wall cavity and the contrast of who is high low of indoor temperature, opening and closing of upper and lower valve of wall body in the decision unit: if the air temperature in the cavity of the unit double-wall is lower than the indoor air temperature, the valve is opened, so that the air with the air temperature lower than the indoor air temperature in the cavity of the unit double-wall can flow from top to bottom and enter the room to cool the room, and the air continuously separates an outer wall body easy to conduct heat in the flowing process and exchanges heat with the outdoor cooler air; the upper and lower valves of the unit inner wall body with the air temperature higher than the indoor air temperature in the cavity of the double-wall are closed, and the air with the air temperature higher than the indoor air temperature in the cavity of the unit double-wall cannot enter the room to increase the temperature of the room.
Each building has an east, west, south and north orientation. Different orientations will have different periods of exposure to the sun at different times. The wall of a building in the northern hemisphere of the earth, which faces to east, south and west, faces to the sun and is sunned by the sun in different periods of time, and the wall facing to the north can not always see the sun. The objective orientation of each specific wall determines the heat absorption and heat dissipation states of the outer wall which is easy to transfer heat in different time periods, and the heat absorption or heat dissipation effect is transferred to the air in the cavity of the unit double-wall, so that the temperature of the air is raised or lowered. In the time period when the outer wall is exposed to the sun, the outer wall absorbs the heat radiation of the sun, raises the temperature, and transfers heat to the adjacent outdoor air in addition to performing partial heat exchange with the outdoor air so as to heat the air in the cavity of the inner double-wall; and in the time period of not being exposed to the sun, the outer wall is in a state of simply exchanging heat with the adjacent outdoor air. If the outdoor air temperature is lower than the temperature of the outer surface of the unit wall, the unit wall radiates outwards, and the radiating effect is transferred to the air in the cavity of the double-walled wall in the outer wall of the unit, so that the air is cooled; when the outdoor temperature of the unit is higher than the temperature of the outer surface of the wall (for example, the temperature is high in summer), the wall absorbs heat and transmits the heat absorption effect to the air in the cavity of the inner double-wall, so that the temperature of the air is increased. This is a characteristic of each building that walls of different orientation have heat exchange with the sun and the outdoor air. The invention relates to an active energy-saving wall for passive rooms and energy-saving buildings, which utilizes the characteristic of walls in different directions, and carries out differential treatment and control on energy-saving wall units in different states at different time intervals according to the comparison condition of the air temperature in a double-wall and the indoor air temperature according to the requirements of indoor heating or cooling:
when indoor temperature rise is needed (for example, in winter), the outer wall can be exposed to the sun and can absorb solar heat radiation energy to transfer heat inwards by controlling the upper and lower ventilation holes of the inner wall, the temperature in the cavity of the double-wall is higher than that of the upper and lower ventilation holes of the inner wall of the indoor energy-saving unit, and the air heated and heated by the outer wall in the cavity of the adjacent double-wall can continuously flow from the opened upper and lower ventilation holes to the indoor from bottom to top and continuously exchanges heat with the exposed outer wall in the flowing process to heat the indoor; meanwhile, for the energy-saving unit which is in a shady position and cannot absorb solar heat radiation energy to transfer heat inwards, if the outdoor temperature is higher than that of the indoor space in the time period, the upper ventilation hole and the lower ventilation hole of the inner wall body are also opened, and air heated by the outer wall in the cavity of the adjacent double-wall can be continuously flowed into the indoor space from bottom to top through the opened upper ventilation hole and the opened lower ventilation hole to heat the indoor space; if the outdoor temperature of the energy-saving unit and the temperature in the cavity of the double-wall are lower than those of the indoor space, the upper and lower ventilation holes of the wall in the unit are closed, and the air in the cold double-wall cavity adjacent to the upper and lower ventilation holes can not flow into the indoor space, so that the effect of enhancing the heat preservation effect is achieved.
When the indoor temperature is required to be reduced in summer, the upper ventilation holes and the lower ventilation holes of the inner wall can be controlled to enable the inner wall to be exposed to the sun and absorb the heat radiation energy of the sun to transfer heat inwards, the ventilation holes of the inner wall of the energy-saving unit with the temperature higher than the indoor temperature in the cavity of the sandwich wall are closed, and the ventilation holes of the inner wall of the energy-saving unit with the temperature higher than the indoor temperature in the cavity of the sandwich wall are also closed, so that the air in the cavity of the sandwich wall adjacent to the ventilation holes can not flow into the indoor space to increase the temperature, and only the effect of increasing the heat insulation effect is achieved; and meanwhile, the energy-saving unit which is positioned in the shady place and can not absorb the solar heat radiation energy is also controlled: if the outdoor air temperature is higher than the indoor temperature (for example, in the afternoon of summer), the ventilation holes of the inner wall of the unit are also closed, and the air heated by the outdoor air in the cavity of the double-wall adjacent to the ventilation holes cannot flow into the indoor space to heat the indoor space; if the outdoor temperature of the energy-saving unit at the shady position is lower than that of the indoor space and the temperature in the cavity of the double-wall is also lower than that of the indoor space, the upper ventilation hole and the lower ventilation hole of the inner wall are opened, the air with the lower temperature in the cavity of the double-wall adjacent to the upper ventilation hole can continuously flow from top to bottom to the indoor space, and continuously separates the outer wall body easy to conduct heat in the flowing process to exchange heat with the outdoor cooler air so as to cool the indoor space. When the upper and lower valves of the inner wall are opened, the air in the cavity of the double-wall flows automatically because the specific gravity of the hot air is small and rises, and the specific gravity of the cold air is large and sinks.
Thus, for the passive house and the energy-saving building adopting the active energy-saving wall for the passive house and the energy-saving building, the wall not only has the functions of heat insulation, but also can actively enhance the energy-saving effect for the passive house and the energy-saving building according to different positions of the wall unit and different conditions in different time periods: when the temperature needs to be raised, the energy-saving wall can actively absorb external heat to raise the temperature indoors; when the temperature needs to be reduced, the energy-saving wall can actively radiate heat outwards to reduce the temperature indoors.
The active energy-saving wall for the passive house and the energy-saving building can be used on a new building, and can also be used for carrying out technical transformation on the active energy-saving wall on the existing building, so that the wall not only plays a role in heat preservation and heat insulation, but also can make active energy-saving contribution for the building.
Besides controlling the opening and closing of the upper and lower valves of the wall bodies in each energy-saving unit by using the automatic temperature control system, the upper and lower valves of the wall bodies in different units can be controlled to be manually opened or closed according to seasons, time intervals, requirements of temperature rise or temperature drop and orientation directions of each energy-saving unit.
(IV) description of the drawings: fig. 1 and 2 are schematic views of such "active energy saving wall for passive rooms and energy saving buildings", showing the basic structure of two energy saving wall units in different orientations in one room of one floor. Numeral 1 denotes an outer wall body, numeral 2 denotes a vertical enclosing wall (usually a partition wall between two rooms) of a sealed enclosing frame, numeral 3 denotes an inner wall body, numeral 4 denotes a sealing top cover (usually an extension of a ceiling of the floor) on the upper portion of the sealed enclosing frame, numeral 5 denotes a sealing lower bottom (usually an extension of the floor) on the lower portion of the sealed enclosing frame, numeral 6 denotes a cavity of a sandwiched wall, numeral 7 denotes a ventilation hole on the upper portion of the inner wall body, numeral 8 denotes a ventilation hole on the lower portion of the inner wall body, numeral 9 denotes a controllable valve capable of controlling the opening or closing of the ventilation hole on the upper portion, numeral 10 denotes a controllable valve capable of controlling the opening or closing of the ventilation hole on the lower portion, numeral 11 denotes a temperature sensor extending into the cavity of the sandwiched wall, and numeral 12 denotes a temperature sensor located indoors. The specific temperature control system is not shown in the schematic. Numeral 13 indicates vertical and horizontal auxiliary supporting frames for installing and fixing the external wall body, except for the surrounding sealing frame, and the horizontal supporting frame is provided with a plurality of holes which do not obstruct the air in the cavity of the double-wall from flowing up and down; numeral 14 denotes an indoor space, and numeral 15 denotes an outdoor space. Numeral 16 indicates the solar irradiation direction.
FIG. 1 is a schematic view of the general requirement of indoor temperature increase, controlled by the independent temperature control mechanisms of two wall units in different environmental states, so that the upper and lower doors of the inner wall body of the sunny side unit (left) heated by the sun, and thus the air temperature in the cavity of the double-wall is higher than the indoor temperature, are opened, and the air heated by the outer wall body in the cavity of the double-wall flows from bottom to top, and in the flowing process, the air exchanges heat with the outer wall body which is easy to conduct heat and is heated by absorbing the heat radiation of the sun, and then flows into the indoor to bring the heat into the indoor, thereby contributing to indoor temperature increase; meanwhile, the temperature of the air in the cavity of the double-wall is lower than the indoor temperature of the wall unit on the shady side (the right side) because of the cold outdoor environment, the upper and lower valves of the inner wall body are closed by the control mechanism, the air in the cavity of the double-wall lower than the indoor temperature is in a state of stopping flowing, the indoor temperature reduction cannot be caused, and the effect of increasing the wall heat insulation effect of the wall unit can be achieved because one more air layer is arranged on the wall between the indoor space and the outdoor space.
Fig. 2 shows that the indoor cooling is required, the opening and closing states of the upper and lower valves of the two inner wall bodies of the two units are opposite to the upper state, the upper and lower valves of the inner wall body of the unit on the left side exposed to the sun are closed, the hotter air in the cavity of the sandwich wall cannot flow, and only the effect of increasing the heat insulation effect is achieved, while the right side of the unit is shaded, if the outdoor air is cooler, so that the temperature of the air in the cavity of the sandwich wall is lower than the indoor temperature, the upper and lower valves of the inner wall body of the unit are opened, and the air lower than the indoor temperature in the cavity of the sandwich wall flows from top to bottom and enters the room, so that the contribution is made to the indoor cooling. If the outdoor air is hotter than the indoor air, the upper and lower valves of the inner wall are also closed, and the effect of enhancing the heat insulation effect is only achieved.
(V) specific embodiment: before a passive house and an energy-saving building are built, the outer wall is designed into an inner layer and an outer layer in advance during design. A cavity of the double-wall is reserved between the inner layer and the outer layer. The inner wall is made of wall material with good heat insulation performance (for example, a foam heat insulation material layer is laid outside a reinforced concrete wall), and the outer wall is sealed into a whole by using plates with good heat transfer performance (for example, aluminum alloy plates or stainless steel plates or toughened glass plates connected with the edges in a sealing mode). The transverse auxiliary supporting frame is provided with a plurality of holes which only play a role of supporting the outer wall body and do not block the air in the cavity of the unit double-wall from flowing up and down. The ventilation holes with proper size, shape and size are designed and constructed above and below the inner wall body which corresponds to each room and has good heat insulation performance. A valve structure of matched size is hermetically installed in the ventilation hole, and the valve structure is provided with an inner temperature sensor, an outer temperature sensor and an independent temperature control mechanism of the unit. The periphery between the inner wall body unit and the outer wall body unit corresponding to each room is formed with a sealing enclosure frame through the extension of the wall, the floor and the ceiling, so that an independent sealing double-wall cavity can be formed between the inner wall body, the outer wall body and the sealing enclosure frame. And adopt the auxiliary stay frame structure, under the condition of sealing treatment to all around, firmly fix the outer wall body on the sealed enclosure frame that wall, floor, ceiling formed and the auxiliary stay frame who installs additional. This creates individual active energy-saving wall units. And then the branch temperature control mechanisms of all the energy-saving units are communicated with the overall temperature control mechanism, so that the construction of a passive house and an energy-saving building with the active energy-saving wall units is completed.
For the existing passive house and energy-saving building, the technical improvement of adding an active energy-saving wall to the existing passive house and energy-saving building can be realized by additionally arranging a structural sealing enclosing frame capable of bearing and supporting an outer wall body at the position of the sealing enclosing frame corresponding to each unit, additionally arranging an auxiliary supporting frame capable of further fixing the outer wall body without influencing the vertical flow of air in a cavity of the sandwich wall between the sealing enclosing frame and the structural sealing enclosing frame, excavating upper and lower ventilation holes on an inner wall body, arranging a temperature sensor and a temperature control mechanism at the upper and lower ventilation holes, and finally further sealing and arranging the outer wall body.
Claims (2)
1. An active energy-saving wall for passive rooms and energy-saving buildings is characterized in that according to the orientation directions of floors and walls and the positions of all rooms, an outer wall is divided into independent inner walls which are provided with 'high heat insulation capability, ventilation holes at the upper part and the lower part of the outer wall and controllable valves which can be opened or closed at the ventilation holes', and an active energy-saving wall unit structure which is provided with 'a sealed outer wall body which has high heat conduction capability and strength and is formed by a weather-resistant metal plate or a single-layer glass plate or a natural stone plate or an artificial outer wall plate', 'a surrounding sealing frame which is arranged between the inner wall and the outer wall and has supporting connection function and weather resistance durability', and 'a sandwich wall cavity which is formed by surrounding the inner walls, the outer wall and the surrounding sealing frame', and temperature sensors which can respectively detect the temperature of the sandwich wall cavity and the indoor air are arranged at the controllable valves, and the independent branch temperature control mechanism of this unit that links with total temperature control mechanism mutually can carry out total control for the needs of indoor intensification or cooling according to passive room or energy-conserving building owner to make each initiative energy-conserving wall unit can be according to the contrast situation of the air temperature in this unit double-layered wall cavity and indoor air temperature, control opening or closing of upper and lower valve respectively: if the temperature of the unit with the air temperature lower than the indoor air temperature is reduced, the upper and lower shutters of the wall body in the unit are opened through the automatic temperature control mechanism, so that the air in the cavity of the double-wall can continuously flow from top to bottom to the indoor, and in the flowing process, the air and the outdoor cooler air exchange heat through the outer wall body which is easy to transfer heat, and the indoor air is reduced; for the unit with the air temperature in the cavity of the double-wall higher than the indoor air temperature, the upper and lower movable doors of the wall body in the unit are automatically closed through the automatic temperature control mechanism of the unit, so that the air in the cavity of the double-wall of the unit can not flow and only plays a passive role in increasing the heat insulation effect; if in order to heat up, for the unit with the air temperature in the cavity of the double-wall higher than the indoor air temperature, the upper and lower movable doors of the wall body in the unit are opened through the automatic temperature control mechanism of the unit, so that the air in the cavity of the double-wall can continuously flow from bottom to top indoors, and in the flowing process, the air and the outdoor hotter air exchange heat through the outer wall body which is easy to transfer heat, so as to heat up the indoor air; for the unit with the air temperature in the cavity of the double-wall lower than the indoor air temperature, the upper and lower valves of the wall body in the unit are automatically closed through the temperature automatic control mechanism of the unit, so that the air in the cavity of the double-wall of the unit can not flow, the heat exchange carried out by the indoor and outdoor flowing of the air through the double-wall is stopped, and only the passive effect of increasing the heat insulation effect is achieved.
2. The active energy-saving wall for passive houses and energy-saving buildings as claimed in claim 1, wherein the control of the upper and lower shutters of the inner wall can be controlled by manual opening or closing according to seasons, time periods, and the requirements of temperature rise or temperature fall and the orientation of each active energy-saving unit.
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| CN114086693A (en) * | 2021-12-22 | 2022-02-25 | 黄首赟 | Stressed efficient heat-preservation energy-saving zero-carbon passive energy consumption hollow air conditioner shear wall |
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