CN110863622A - Novel ventilation roof and integrated building - Google Patents

Novel ventilation roof and integrated building Download PDF

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Publication number
CN110863622A
CN110863622A CN201911305718.0A CN201911305718A CN110863622A CN 110863622 A CN110863622 A CN 110863622A CN 201911305718 A CN201911305718 A CN 201911305718A CN 110863622 A CN110863622 A CN 110863622A
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CN
China
Prior art keywords
roof
room
air
energy storage
flow channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911305718.0A
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Chinese (zh)
Inventor
唐赛红
张恺
马明泉
陈露芳
吴少杰
朱晋辰
姚炳如
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Tech University
Original Assignee
Nanjing Tech University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Tech University filed Critical Nanjing Tech University
Priority to CN201911305718.0A priority Critical patent/CN110863622A/en
Publication of CN110863622A publication Critical patent/CN110863622A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/17Ventilation of roof coverings not otherwise provided for
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • F24F5/0007Air-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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017Air-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 cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • F24F5/0089Systems using radiation from walls or panels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Abstract

The invention discloses a novel ventilation roof and an integrated building, which comprise a radiation refrigeration film, a phase change energy storage capsule, a variable frequency fan, an air flow channel, an external window, a wall body, a heat preservation baffle, a roof air inlet, a plate and a room. The invention stores the generated cold energy in the phase-change energy storage capsule through the radiation refrigeration film, when the room needs to be ventilated and cooled, the ambient air enters the air flow channel through the air inlet on the roof to exchange heat with the phase-change energy storage capsule, and the low-temperature air enters the room to be cooled under the action of the variable-frequency fan. The natural cold source is fully utilized, the energy consumption can be reduced, and the energy conservation and emission reduction can be realized.

Description

Novel ventilation roof and integrated building
Technical Field
The invention belongs to the technical field of energy conservation of refrigeration and air conditioning equipment, and particularly relates to a novel ventilation roof and an integrated building.
Background
With the increase of negative effects of greenhouse effect, green buildings get more and more attention. The roof has higher heat gain as an important building enclosure, and the adoption of the ventilated roof can not only fully utilize natural resources, but also reduce the energy consumption of the building. The ventilation roof is provided with a ventilation interlayer for heat insulation, and the outer layer of the ventilation interlayer is used for shielding sunlight; roof arrangement by the action of wind pressure and hot pressing. Compared with the solid material heat insulation roof, the ventilated roof has the advantages of material saving, lightness, few material layers, simple structure, good rain and leakage prevention, economy, easy maintenance and the like.
At present, due to the limitation of materials, the heat insulation effect of a heat insulation board is poor, and the reflection degree of solar radiation is only about 35 percent; and the heat dissipation effect is relatively poor only through natural ventilation. In order to solve the problems, the chinese patent CN201191057Y utilizes the solar thermal pressure principle and forced draft by a fan, so that the accumulated hot air in the hot-pressing ventilation layer can be discharged in time, and the energy consumption for cooling the top building is reduced. The implementation method comprises the steps that a plurality of hot-pressing ventilation layers with air inlets at the bottoms are arranged on the roof structure base layer, air outlets are arranged in the hot-pressing ventilation layers, fans are arranged on the air outlets, and the fans take away a large amount of hot air to achieve ventilation cooling. Chinese patent CN208950189U provides a ventilated roof structure, which is implemented by adding reinforced concrete slabs, air layers, waterproof layers of coiled materials, aerated concrete slabs, reinforced concrete roof slabs and other structures on the traditional roof to improve the heat insulation performance of the roof, but the method has relatively complex structure and poor heat insulation effect.
Aiming at the defects, the invention discloses a novel ventilation roof and an integrated building, wherein the device stores the generated cold energy in a phase change energy storage capsule through a radiation refrigeration film to realize the cold storage function; when the room needs to be ventilated and cooled, ambient air enters the air flow channel through the roof air inlet to exchange heat with the phase change energy storage capsule, and low-temperature air enters the room to be cooled under the action of the variable frequency fan. The natural cold source is fully utilized, the energy consumption can be reduced, and the energy conservation and emission reduction can be realized.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the novel ventilated roof and the integrated building are provided, and the generated cold energy is stored in the phase change energy storage capsule through the radiation refrigeration film, so that the cold storage function is realized; when the room needs to be ventilated and cooled, ambient air enters the air flow channel through the roof air inlet to exchange heat with the phase change energy storage capsule, and low-temperature air enters the room to be cooled under the action of the variable frequency fan. The natural cold source is fully utilized, the energy consumption can be reduced, and the energy conservation and emission reduction can be realized.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
a novel ventilation roof and an integrated building are disclosed, the system comprises a first roof (1), a second roof (2), an external window (3), a variable frequency fan (4), a first air flow channel (5), a second air flow channel (6), a wall body (7), a room (8), a heat preservation baffle (12), a first roof air inlet (13) and a second roof air inlet (14);
the first roof (1) comprises: a radiation refrigeration film (9), a phase change energy storage capsule (10) and a plate (11);
the radiation refrigeration film (9) is placed on the upper surface of the plate (11) and is tightly connected with the upper surface of the plate (11), and the phase change energy storage capsule (10) is placed on the lower surface of the plate (11) and is tightly connected with the lower surface of the plate (11);
the first roof (1) is connected with the second roof (2) through a heat insulation baffle (12), a first air flow channel (5) and a second air flow channel (6) are arranged between the first roof (1) and the second roof (2), the second roof (2) is tightly connected with a wall body (7) of a room (8), and an outer window (3) is arranged on the wall body (7);
the top center position of second roofing (2) put and be equipped with the trompil, trompil department sets up frequency conversion fan (4).
As a preferable example, the emissivity of the radiation refrigeration film in a wave band (an atmospheric window wave band) of 8-13 μm is more than 0.90; meanwhile, the reflectivity in a wave band of 0.25-3 mu m (solar heat radiation wave band) is more than 0.90;
the radiation refrigeration film can be a spectrum selective film of a metamaterial, a nanometer laser selective emission material or one of a radiation refrigeration coating or paint.
As a preferable example, the novel ventilated roof and integrated building is characterized in that the heights of the first air flow channel and the second air flow channel are not lower than 0.1 m.
As a preferred example, the novel ventilated roof and integrated building is characterized in that the phase change energy storage capsules are uniformly arranged on the lower surface of the plate;
the phase-change material in the phase-change energy storage capsule can be paraffin, n-octadecane and other phase-change materials.
As a preferred example, the frequency conversion fan can automatically adjust the rotating speed of the fan according to the indoor temperature.
Preferably, the plate material is one of high-grade heat-conducting metals such as aluminum, copper, titanium, iron and the like.
As a preferred example, the system mainly has the following two modes:
cold storage mode: when the room (8) does not need to supply cold, the variable frequency fan (4) is closed, the radiation refrigeration film (9) and the outer space perform radiation heat exchange at the moment, and the obtained cold energy is transmitted to the phase change energy storage capsule (10) through the plate (11) to be stored, so that cold storage is realized;
and (3) ventilating and cooling mode: when the room (8) needs to be ventilated and cooled, the variable frequency fan (4) is started, ambient air enters the first air flow channel (5) and the second air flow channel (6) through the first roof air inlet (13) and the second roof air inlet (14), when the air flows through the phase-change energy storage capsule (10), the ambient air exchanges heat with the phase-change energy storage capsule (10), the air temperature is reduced, low-temperature air enters the room (8) under the driving of the variable frequency fan (4), the room (8) is cooled, and air with higher temperature in the room (8) can be directly discharged outdoors through the outer window (3).
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the generated cold energy is stored in the phase change energy storage capsule through the radiation refrigeration film, so that the cold storage function is realized; when the room needs to be ventilated and cooled, ambient air enters the air flow channel through the roof air inlet to exchange heat with the phase change energy storage capsule, and low-temperature air enters the room to be cooled under the action of the variable frequency fan. The natural cold source is fully utilized, the energy consumption can be reduced, and the energy conservation and emission reduction can be realized.
Drawings
FIG. 1 is a schematic view of a new ventilated roof and integrated building;
reference number designations in the drawings: 1. a first roof; 2. a second roof; 3. an outer window; 4. a variable frequency fan; 5. a first air flow passage; 6. a second air flow passage; 7. a wall body; 8. a room; 9. a radiation-cooled film; 10. a phase change energy storage capsule; 11. a plate material; 13. a first roof air inlet; 14. and a second roof air inlet.
FIG. 2 is a three-dimensional schematic of an integrated building of the present invention;
reference number designations in the drawings: 1. a first roof; 2. a second roof; 3. an outer window; 7. a wall body; 9. a radiation-cooled film; 10. a phase change energy storage capsule; 11. a plate material; 12. a heat preservation baffle.
FIG. 3 is a schematic view of a phase change energy storage capsule of the present invention;
reference number designations in the drawings: 1. a first roof; 2. a second roof; 10. a phase change energy storage capsule; 11. a plate material.
Detailed description of the invention
As shown in fig. 1, fig. 2 and fig. 3, the invention relates to a novel ventilated roof and integrated building, which comprises a first roof 1; 2. a second roof; 3. an outer window; 4. a variable frequency fan; 5. a first air flow passage; 6. a second air flow passage; 7. a wall body; 8. a room; 12. a heat preservation baffle plate; 13. a first roof air inlet; 14. a second roof air inlet;
the first roof comprises: 9. a radiation-cooled film; 10. a phase change energy storage capsule; 11. a plate material;
the radiation refrigeration film (9) is placed on the upper surface of the plate (11) and is tightly connected with the upper surface of the plate (11), and the phase change energy storage capsule (10) is placed on the lower surface of the plate (11) and is tightly connected with the lower surface of the plate (11);
the first roof (1) is connected with the second roof (2) through a heat insulation baffle (12), a first air flow channel (5) and a second air flow channel (6) are arranged between the first roof (1) and the second roof (2), the second roof (2) is tightly connected with a wall body (7) of a room (8), and an outer window (3) is arranged on the wall body (7);
the top center position of second roofing (2) put and be equipped with the trompil, trompil department sets up frequency conversion fan (4).
A radiation-cooled film having an emissivity greater than 0.90 in the 8-13 μm band (the "atmospheric window" band); meanwhile, the reflectivity in a wave band of 0.25-3 mu m (solar heat radiation wave band) is more than 0.90;
the radiation refrigeration film can be a spectrum selective film of a metamaterial, a nanometer laser selective emission material or one of radiation refrigeration coatings or paints.
The heights of the first air flow channel and the second air flow channel are not less than 0.1 m. And cold water in the water tank enters the heat exchanger under the action of the water pump to supercool the refrigerant in the heat exchanger.
The phase change energy storage capsules are uniformly arranged on the lower surface of the plate;
the phase-change material in the phase-change energy storage capsule can be paraffin, octadecane and other phase-change materials.
The frequency conversion fan can automatically adjust the rotating speed of the fan according to the indoor temperature.
The material of the plate can be one of high-grade heat-conducting metals such as aluminum, copper, titanium, iron and the like.
The invention has the following two modes:
cold storage mode: when the room (8) does not need to supply cold, the variable frequency fan (4) is closed, the radiation refrigeration film (9) and the outer space perform radiation heat exchange at the moment, and the obtained cold energy is transmitted to the phase change energy storage capsule (10) through the plate (11) to be stored, so that cold storage is realized;
and (3) ventilating and cooling mode: when the room (8) needs to be ventilated and cooled, the variable frequency fan (4) is started, ambient air enters the first air flow channel (5) and the second air flow channel (6) through the first roof air inlet (13) and the second roof air inlet (14), when the air flows through the phase-change energy storage capsule (10), the ambient air exchanges heat with the phase-change energy storage capsule (10), the air temperature is reduced, low-temperature air enters the room (8) under the driving of the variable frequency fan (4), the room (8) is cooled, and air with higher temperature in the room (8) can be directly discharged outdoors through the outer window (3).
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a novel ventilation roofing and integrated building which characterized in that:
the air conditioner comprises a first roof (1), a second roof (2), an external window (3), a variable frequency fan (4), a first air flow channel (5), a second air flow channel (6), a wall body (7), a room (8), a heat preservation baffle (12), a first roof air inlet (13) and a second roof air inlet (14);
the first roof (1) comprises: a radiation refrigeration film (9), a phase change energy storage capsule (10) and a plate (11);
the radiation refrigeration film (9) is placed on the upper surface of the plate (11) and is tightly connected with the upper surface of the plate (11), and the phase change energy storage capsule (10) is placed on the lower surface of the plate (11) and is tightly connected with the lower surface of the plate (11);
the first roof (1) is connected with the second roof (2) through a heat insulation baffle (12), a first air flow channel (5) and a second air flow channel (6) are arranged between the first roof (1) and the second roof (2), the second roof (2) is tightly connected with a wall body (7) of a room (8), and an outer window (3) is arranged on the wall body (7);
the top center position of second roofing (2) put and be equipped with the trompil, trompil department sets up frequency conversion fan (4).
2. A new ventilated roofing and integration structure according to claim 1, characterized in that said radiant cooling film (9) has an emissivity greater than 0.90 in the 8-13 μm band ("atmospheric window" band); meanwhile, the reflectivity in a wave band of 0.25-3 mu m (solar heat radiation wave band) is more than 0.90;
the radiation refrigeration film (9) can be one of a spectrum selective film of a metamaterial, a nanometer laser selective emission material or a radiation refrigeration coating or paint.
3. A new ventilated roof and integration building according to claim 1, wherein the height of said first air flow channel (5) and said second air flow channel (6) is not less than 0.1 m.
4. A novel ventilated roof and integrated building according to claim 1, wherein said phase change energy storage capsules (10) are uniformly installed on the lower surface of the plate (11);
the phase change material in the phase change energy storage capsule (10) can be paraffin, octadecane and other phase change materials.
5. A new type of ventilated roof and integration building according to claim 1, wherein said variable frequency fan (4) is capable of automatically adjusting the fan speed according to the indoor temperature.
6. A new ventilated roof and building assembly according to claim 1, wherein said sheet (11) is made of one of the high grade heat conductive metals such as aluminum, copper, titanium, iron, etc.
7. The novel ventilated roof and integrated building according to claim 1, comprising a cold accumulation mode and an aeration cooling mode, wherein the specific working conditions are as follows:
cold storage mode: when the room (8) does not need to supply cold, the variable frequency fan (4) is closed, the radiation refrigeration film (9) and the outer space perform radiation heat exchange at the moment, and the obtained cold energy is transmitted to the phase change energy storage capsule (10) through the plate (11) to be stored, so that cold storage is realized;
and (3) ventilating and cooling mode: when the room (8) needs to be ventilated and cooled, the variable frequency fan (4) is started, ambient air enters the first air flow channel (5) and the second air flow channel (6) through the first roof air inlet (13) and the second roof air inlet (14), when the air flows through the phase-change energy storage capsule (10), the ambient air exchanges heat with the phase-change energy storage capsule (10), the air temperature is reduced, low-temperature air enters the room (8) under the driving of the variable frequency fan (4), the room (8) is cooled, and air with higher temperature in the room (8) can be directly discharged outdoors through the outer window (3).
CN201911305718.0A 2019-12-17 2019-12-17 Novel ventilation roof and integrated building Pending CN110863622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911305718.0A CN110863622A (en) 2019-12-17 2019-12-17 Novel ventilation roof and integrated building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911305718.0A CN110863622A (en) 2019-12-17 2019-12-17 Novel ventilation roof and integrated building

Publications (1)

Publication Number Publication Date
CN110863622A true CN110863622A (en) 2020-03-06

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ID=69659651

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911305718.0A Pending CN110863622A (en) 2019-12-17 2019-12-17 Novel ventilation roof and integrated building

Country Status (1)

Country Link
CN (1) CN110863622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112944203A (en) * 2021-03-22 2021-06-11 中海石油气电集团有限责任公司 Heat preservation cold insulation circulation system based on phase change heat insulation material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112944203A (en) * 2021-03-22 2021-06-11 中海石油气电集团有限责任公司 Heat preservation cold insulation circulation system based on phase change heat insulation material

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