CN114963582A - Multi-pipe heat storage type double-flow-passage ventilation regulation and control system based on solar drive - Google Patents

Multi-pipe heat storage type double-flow-passage ventilation regulation and control system based on solar drive Download PDF

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Publication number
CN114963582A
CN114963582A CN202210720431.XA CN202210720431A CN114963582A CN 114963582 A CN114963582 A CN 114963582A CN 202210720431 A CN202210720431 A CN 202210720431A CN 114963582 A CN114963582 A CN 114963582A
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China
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heat
heat storage
wall surface
building
heat collection
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CN202210720431.XA
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Chinese (zh)
Inventor
雷勇刚
孙嘉伟
刘国禄
陈星宇
王子安
王利明
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Taiyuan University of Technology
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Taiyuan University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00Solar heat collectors specially adapted for particular uses or environments
    • F24S20/60Solar heat collectors integrated in fixed constructions, e.g. in buildings
    • F24S20/66Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of facade constructions, e.g. wall constructions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00Other domestic- or space-heating systems
    • F24D15/02Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/40Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/50Solar heat collectors using working fluids the working fluids being conveyed between plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00Solar heat collectors specially adapted for particular uses or environments
    • F24S20/60Solar heat collectors integrated in fixed constructions, e.g. in buildings
    • F24S20/67Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of roof constructions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00Arrangements for storing heat collected by solar heat collectors
    • F24S60/10Arrangements for storing heat collected by solar heat collectors using latent heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/10Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • 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
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The invention discloses a solar-drive-based multi-pipe heat storage type double-flow-passage ventilation regulation and control system, and relates to the field of building ventilation temperature regulation and control. The system comprises a peripheral wall surface, a heat collection wall surface, a ceiling and a building inner wall, wherein the ceiling and the peripheral wall surface are connected to form an integral outer frame which is positioned outside a building with the temperature to be regulated and controlled; the heat collection wall surface is opposite to the peripheral wall surface, an outer air duct is arranged between the heat collection wall surface and the peripheral wall surface, and an inner air duct is arranged between the heat collection wall surface and the building inner wall; the peripheral wall surface comprises a PC sunlight plate; the heat collection wall surface comprises a plurality of heat storage columns which are vertically and orderly arranged, a heat storage column heat insulation layer is arranged outside the heat storage columns, and a heat collection plate is arranged on the inner side of a heat storage array formed by the heat storage columns; the heat storage column is arranged on a fixing plate at the upper position and the lower position, a plurality of ventilation openings are arranged at each heat exchange position of the inner air channel and the outer air channel, corresponding electromagnetic valves are arranged, and the opening and the closing of the electromagnetic valves are controlled by an automatic control system. The invention fully utilizes solar energy and ground temperature energy under the condition of ensuring indoor thermal comfort, and realizes the aims of energy conservation, emission reduction and low carbonization of buildings.

Description

Multi-pipe heat storage type double-flow-passage ventilation regulation and control system based on solar drive
Technical Field
The invention relates to the field of building ventilation temperature regulation, in particular to a solar-drive-based multi-pipe heat storage type double-flow-passage ventilation regulation and control system.
Background
Solar walls are essentially a passive solar collector attached directly to the wall of a room, usually on the south-facing outer wall.
The traditional solar wall mainly comprises transparent glass, a heat absorption wall surface (a heat collection wall body) and a heat insulation wall surface, wherein a cavity is formed between the glass wall surface and the heat absorption wall surface. Solar radiation enters the cavity through the glass wall surface and is absorbed by the heat collection wall body. The heat collection wall absorbs solar radiation, then the temperature rises, the gas in the cavity is heated, the temperature of the gas rises, the density of the gas is reduced, the gas vertically flows upwards along the cavity and is exhausted to the outside through the air outlet; the cavity is in a local negative pressure state because part of air is exhausted to the outside under heat pressure, indoor air enters the cavity through the air inlet to supplement air, and the effect of passive natural ventilation of the solar wall can be achieved through circulation.
However, the conventional solar wall has the following disadvantages: most of heat storage materials of the heat collection wall body are brick, concrete and other traditional engineering materials, and are heavy and the heat storage capacity needs to be improved; the heat collection wall body is mostly made of deep-color coating, so that the light transmission performance is poor and the building appearance is influenced; ordinary glass apron is breakable, and can't solve the sunshade problem in summer. Therefore, improvement needs to be made on the basis of temperature regulation of the conventional solar wall to achieve better temperature regulation effect on the building.
Disclosure of Invention
The invention provides a multi-pipe heat storage type double-flow-passage ventilation regulation and control system based on solar drive, aiming at solving the problems of poor temperature regulation effect and low energy efficiency caused by materials and structures of the conventional solar wall.
The invention is realized by the following technical scheme: a multi-pipe heat storage type double-flow-channel ventilation regulation and control system based on solar drive comprises a peripheral wall surface, a heat collection wall surface, a ceiling and a building inner wall, wherein the ceiling and the peripheral wall surface are connected to form an integral outer frame, are positioned outside a building with temperature to be regulated and controlled and surround the heat collection wall surface; the peripheral wall surface faces south and is positioned on the sunny side; the heat collection wall surface is opposite to the peripheral wall surface, an outer air duct is arranged between the heat collection wall surface and the peripheral wall surface, and an inner air duct is arranged between the heat collection wall surface and the building inner wall; the peripheral wall surface comprises a PC sunlight plate which is transparent; the heat collection wall surface comprises a plurality of heat storage columns which are vertically and orderly arranged, heat storage column heat insulation layers are arranged outside the heat storage columns, and heat collection plates are arranged on the inner sides of heat storage arrays formed by the heat storage columns; the heat storage columns are arranged on the fixing plates at the upper and lower positions, the fixing plates at the upper and lower positions are respectively connected with the ceiling and the ground, a heat collection side upper air inlet is arranged between the fixing plate at the upper position and the ceiling, a heat collection side lower air inlet is arranged between the fixing plate at the lower position and the ground, and a heat collection side middle ventilation opening is arranged at the middle position of the heat collection plate; an outer side air inlet is formed in the position, corresponding to the outer air duct, of the ceiling; an inner side air inlet is arranged between the building inner wall and the ceiling, an inner side air outlet is arranged between the building inner wall and the ground, and an inner side middle ventilation opening is further formed in the middle of the building inner wall.
The invention designs a solar-drive-based multi-pipe heat storage type double-flow-passage ventilation regulation and control system which is used for regulating and controlling the temperature according to the functional requirements of buildings under different seasonal working conditions. The system comprises a peripheral wall surface, a heat collection wall surface, a ceiling and a building inner wall, wherein the peripheral wall surface is used for dust prevention and protection, the heat collection wall surface is used for heat collection, and the building inner wall is provided with a certain ventilation opening and is communicated with an inner air duct. The ceiling and the peripheral wall surface are connected to form an integral outer frame, the integral outer frame is positioned outside a building with the temperature to be regulated and controlled, and the integral outer frame surrounds a heat collection wall surface; the peripheral wall surface faces south and is positioned on the sunny side, the heat collection wall surface is opposite to the peripheral wall surface, and sunlight penetrates through the peripheral wall surface and irradiates the heat collection wall surface to enable the heat collection wall surface to store heat. An outer air channel is arranged between the heat collection wall surface and the peripheral wall surface, an inner air channel is arranged between the heat collection wall surface and the building inner wall, and the traditional air channel is divided into the outer air channel and the inner air channel through the heat storage column, so that the optimization of air flow organization is facilitated on one hand, and the indoor air quality is effectively improved; on the other hand, the system is beneficial to reducing the heat transfer of the building structure at night in winter, the heat loss is obviously reduced, and the heat preservation target is realized. The specific structure of the peripheral wall surface is as follows: the PC sunlight plate is transparent and has the advantages of high light transmittance, strong heat insulation effect, strong chemical resistance and long service life; the sunlight irradiates the PC sunlight plate and enters the outer air duct; the heat collection wall collects solar radiation heat, the heat collection wall comprises a plurality of heat storage columns which are vertically and orderly arranged, heat collection is achieved through the heat storage columns, heat storage column heat insulation layers are arranged outside the heat storage columns, heat collection plates are arranged on the inner sides of heat storage arrays formed by the heat storage columns, the heat collection plates connect different heat storage columns, heat storage and exchange are carried out to the greater extent, heat supply time at night in winter is prolonged, and indoor temperature is maintained in a proper range. The installation of the heat storage column is realized through the fixing plates at the upper and lower positions, and the fixing plates at the upper and lower positions are respectively connected with the ceiling and the ground. On each wall, wall or thermal-arrest wall with inside and outside wind channel intercommunication, be equipped with a plurality of tuyeres, realize the air flow in the inside and outside wind channel cavity through these tuyeres to realize that the heat flows, specific wind gap sets up as follows: a heat collecting side upper air port is arranged between the fixing plate positioned above and the ceiling, a heat collecting side lower air port is arranged between the fixing plate positioned below and the ground, and a heat collecting side middle ventilation opening is arranged in the middle of the heat collecting plate; an outer side air inlet is arranged at the position, corresponding to the outer air duct, on the ceiling; an inner side air inlet is arranged between the building inner wall and the ceiling, an inner side air outlet is arranged between the building inner wall and the ground, and an inner side middle ventilation opening is also arranged in the middle of the building inner wall. The heat collection wall absorbs solar radiation, the temperature rises, the air in the inner air channel and the outer air channel is heated, the air generates buoyancy when being heated, flows upwards along the cavity, and is discharged to the outdoor or flows to the indoor again according to the opening and closing of each air port of the system; the cavity is in a negative pressure state due to the outflow of partial gas, so that the indoor gas is promoted to flow into the inner air channel and the outer air channel through the plurality of air ports, the supplement of the gas is completed, and the passive natural ventilation effect of the system is realized circularly.
Preferably, this ventilation regulation and control system still includes tunnel wind channel, tunnel wind channel includes the buried pipe, the buried pipe is equipped with the tunnel wind gap of air inlet, the outside parcel of buried pipe has tunnel wind heat preservation, be equipped with wind gap under the outside between the air outlet of buried pipe and the outer wind channel, the air outlet of buried pipe gets into indoor new trend runner through indoor new trend entry, indoor new trend runner buries in the earth's surface, and its air outlet passes through the indoor intercommunication of new trend diffuser and building. The ground temperature can utilize the characteristics that the temperature of soil at a certain depth is lower than the average temperature of the hottest month and higher than the average temperature of the coldest month, the indoor air is preheated and precooled, and the solar energy and the ground temperature can be effectively combined, so that the heat exchange of the system is more sufficient, and the functional requirements under different working conditions are realized. The tunnel wind is sent into the ventilation duct through the outer side lower wind port under the working condition in winter in daytime, is heated and rises under the action of solar radiation, and brings heat into the room, so that the aim of passive heating in winter is fulfilled; the tunnel wind flows through the indoor fresh air channel and is sent into the room through the fresh air diffuser under the working condition of summer, and fresh air is supplemented into the room.
Preferably, the heat storage column is a vacuum heat storage column and comprises a heat storage pipe, a vacuum pipe is sleeved outside the heat storage pipe, the vacuum heat storage column adopts calcium chloride hexahydrate as a phase change material, 3.0% barium hydroxide is contained in the calcium chloride hexahydrate, and the phase change temperature is 28.1 ℃. As the temperature of the heat storage column absorbing solar radiation rises and reaches the phase change temperature, the calcium chloride hexahydrate is converted from a solid state into a liquid state, and a large amount of heat is stored; with the decrease of the temperature at night, the calcium chloride hexahydrate is transformed from liquid state to solid state, releasing a great deal of latent heat absorbed in the day. The calcium chloride hexahydrate has the advantages of large phase change enthalpy value, comfortable phase change temperature, strong heat storage capacity and the like.
Preferably, the PC sunlight plate is processed by polycarbonate resin, and has high light transmittance, strong heat insulation effect, strong chemical resistance and long service life; the heat insulation effect is obviously improved, the heat loss is reduced, the temperature adaptability and the impact resistance are better, the service life is long, and the investment, operation and maintenance cost are reduced.
Preferably, the dustproof film is pasted on the outer side of the PC sunlight plate and is transparent, so that dust on the outer surface of the glass layer can be effectively prevented from being accumulated, and the radiation of the solar heat storage plate is further guaranteed to be heated.
Preferably, electromagnetic switch valves are arranged at the heat collection side upper air inlet, the heat collection side lower air inlet, the heat collection side middle ventilation opening, the outer side upper air inlet, the inner side lower air inlet, the inner side middle ventilation opening and the outer side lower air inlet, and are controlled to be opened and closed through the electromagnetic switch valves, and further, a temperature sensor and an automatic control device are arranged in a building room with the temperature to be regulated and controlled; by monitoring the indoor temperature, the operation of the automatic control element is controlled, so that the system can convert working conditions under different weather conditions, and the balance between indoor thermal comfort and energy conservation is achieved.
Preferably, a green plant is cultivated on the ground outside the building above the buried pipe; utilize the transpiration of plant leaf to reduce ground temperature under the summer operating mode, the tunnel wind temperature further obtains descending, provides more sufficient cold source for the dissipation of waste heat in the room in summer.
Compared with the prior art, the invention has the following beneficial effects: according to the solar-driven multi-tube heat storage type double-flow-channel ventilation control system, firstly, a common glass cover plate is replaced by the PC sunlight plate, the heat insulation effect is obviously improved, the heat loss is reduced, and the system has the advantages of better temperature adaptability, impact resistance, long service life and reduction of investment, operation and maintenance cost; the automatic control system is arranged, so that the system can realize automatic switching of working modes under working conditions in different seasons, manual adjustment of the air valve is not needed, labor resources are saved, and intellectualization is realized. The system is designed to cultivate green plants above the buried pipe, and the transpiration of plant leaves is utilized to reduce the surface temperature in summer, so that the tunnel wind temperature is further reduced, and a more sufficient cold source is provided; secondly, the invention designs the tunnel wind heat exchange and wind supply part, and effectively utilizes the ground temperature energy by utilizing the characteristics that the temperature of the soil in the hottest month is lower than the annual average temperature and the temperature of the soil in the coldest month is higher than the annual average temperature under a certain depth, thereby fully playing the precooling and preheating functions of the tunnel wind and realizing the refrigeration and heat supply requirements in different seasons. The system adopts vacuum heat storage columns arranged in parallel to replace the traditional heat storage wall, selects calcium chloride hexahydrate as a phase change material, releases latent heat by utilizing the phase change of the material, adopts heat collection plates to connect different heat storage columns, stores and exchanges heat to the maximum extent, prolongs the heat supply time at night in winter, maintains the appropriate indoor temperature, and realizes the heat preservation target. The multi-pipe heat storage type structure of the system effectively improves the problems of volatility and time delay of solar radiation; the double air channels are adopted, so that under the working condition of summer, the double air channels play a role in strengthening natural ventilation, the outflow of indoor air and the supplement of tunnel fresh air are accelerated, the optimization of airflow organization is facilitated, and the quality of the indoor air is improved; under the working condition in winter, the double air ducts play a role in strengthening heat exchange, and are beneficial to reducing heat transfer of the building structure at night in winter, so that the heat loss is obviously reduced, and the heat preservation target is realized.
Under the background of the current social technology, the invention has the following meanings: the proportion of the building energy consumption in the energy consumption of China is up to 35%, and energy conservation in the building field is the key point of energy conservation and emission reduction in China. And the energy consumption of the heating, ventilating and air conditioning system accounts for about 65 percent of the total energy consumption of the building, so the renewable energy utilization of the building has great significance for building energy conservation. How to reasonably utilize clean energy and how to innovatively design a heat supply and ventilation system in a building so as to realize energy conservation and low carbon of the building is an important direction for development of the heating and ventilation industry; secondly, both solar energy and ground temperature energy belong to clean energy which is easy to utilize. The tunnel wind takes shallow rock soil as a natural cold and heat source, exchanges heat with soil, and sends preheated or cooled gas into a room. On one hand, the system directly heats the air in the flow channel by using solar energy, thereby bearing the indoor cold and heat load; on the other hand, the system combines solar radiation with natural ventilation, and utilizes hot pressure or wind pressure caused by temperature difference to drive indoor air to naturally flow, thereby meeting the requirements of thermal comfort and air quality, and being an environment-friendly passive ventilation energy-saving technology; solar energy is one of the widely used renewable energy sources at present, has the defects of volatility, time delay, instability and the like, is limited by multiple natural conditions such as day and night, seasons, geographical latitudes, altitudes and the like, and is low in utilization efficiency. The proposal of the work can effectively solve the problems of instability, time delay and the like of solar energy. The system adopts the vacuum heat storage columns which are arranged in parallel to replace the traditional heat storage wall, and the heat storage columns are connected through the heat collection plate, so that the heat storage capacity of the system is further enhanced, the heat generated by solar ray irradiation in the daytime is stored, and the latent heat is released through material phase change at night, so that the relatively comfortable temperature is kept at night in winter. The system adopts double flow passages to replace the traditional single air passage, the airflow organization of the system is further optimized, and the division of the inner flow passage and the outer flow passage has good benefit on heat preservation at night in winter.
The feasibility of the invention is as follows: the invention utilizes solar energy to radiate heat, realizes natural ventilation in summer, realizes indoor heat supplement in winter, and reduces the consumption of non-renewable energy. China has abundant solar energy resources, the annual sunshine hours in areas with the total area of more than 2/3 in China are more than 2000 hours, and the annual radiation quantity is more than 5000 MJ/square meter. Except for the plateau region of Guizhou part, all regions in China are regions available for solar energy resources. The solar energy is comprehensively utilized, the comprehensive utilization of solar energy photo-thermal and photoelectric is comprehensively realized, the energy consumption of buildings can be effectively reduced, and the use amount of non-renewable energy sources is reduced. Secondly, the shallow geothermal energy can be used as a novel high-quality clean energy, and has the characteristics of reproducibility, wide distribution, large storage capacity, cleanness, environmental protection, economy, practicability, strong safety, convenient utilization and the like. The utilization of shallow geothermal energy in China has been in the history of nearly 30 years, and the development and utilization technology of shallow geothermal energy is continuously innovated and improved through the absorption reference of foreign advanced technologies and the continuous accumulation of experience. In the hottest month, the temperature of the soil at a certain depth is instead lower than the annual average temperature. And in the coldest month, the temperature at this point is higher than the annual average temperature. Therefore, the heat exchange between the geothermal energy and the air can be realized, the precooling of the air in summer and the preheating of the air in winter can be realized, and the cold and heat supplement under different working conditions can be realized; the invention can be applied to (1) data machine rooms of industrial factory buildings (2), computer machine rooms (3), rural buildings (4), small railway station waiting halls (5), small expressway service areas (6) and tourist attraction service centers; has wide application prospect; has good economic benefit and ecological benefit.
Drawings
Fig. 1 is a structural sectional view of the present invention.
FIG. 2 is a schematic structural view of a heat collecting wall surface according to the present invention.
Fig. 3 is a schematic structural view of a vacuum thermal storage column according to the present invention.
FIG. 4 is a schematic representation of the flow of the gas stream during operating conditions of the present invention.
FIG. 5 is a schematic view of the air flow conditions of the present invention in condition two (heat release phase).
FIG. 6 is a schematic view of the air flow conditions of the present invention in condition two (soak phase).
FIG. 7 is a schematic view of the flow of air under condition three of the present invention.
FIG. 8 is a schematic view of the air flow conditions of the present invention at condition four.
The figures are labeled as follows: 1-PC sunlight panel; 2-dust-proof film; 3-heat storage column; 4-heat storage column insulating layer; 5-an outer air duct; 6-outer side air inlet; 7-a heat collection side upper air port; 8-inner side air inlet; 9-outer side lower tuyere; 10-heat collecting side lower tuyere; 11-inner side lower tuyere; 12-a fixing plate; 13-a heat collecting plate; 14-building interior walls; 15-inner air duct; 16-a heat storage tube; 17-vacuum tube; 18-a buried pipe; 19-tunnel air port; 20-a tunnel wind insulating layer; 21-a central ventilation opening at the heat collecting side; 22-inner medial vent; 23-indoor fresh air inlet; 24-indoor fresh air flow channel; 25-a fresh air diffuser; 26-ceiling.
Detailed Description
The present invention is further illustrated by the following specific examples.
A multi-pipe heat storage type double-channel ventilation regulation and control system based on solar drive is disclosed as shown in figures 1 and 2: the heat collecting wall comprises a peripheral wall surface, a heat collecting wall surface, a ceiling 26 and a building inner wall 14, wherein the ceiling 26 is connected with the peripheral wall surface to form an integral outer frame, is positioned outside a building with temperature to be regulated and controlled, and surrounds the heat collecting wall surface; the peripheral wall surface faces south and is positioned on the sunny side; the heat collection wall surface is opposite to the peripheral wall surface, an outer air duct 5 is arranged between the heat collection wall surface and the peripheral wall surface, and an inner air duct 15 is arranged between the heat collection wall surface and the building inner wall 14; the peripheral wall surface comprises a PC sunlight plate 1, and the PC sunlight plate 1 is transparent; the heat collection wall surface comprises a plurality of heat storage columns 3 which are vertically and orderly arranged, heat storage column heat insulation layers 4 are arranged outside the heat storage columns 3, and heat collection plates 13 are arranged on the inner sides of heat storage arrays formed by the heat storage columns 3; the heat accumulation column 3 is arranged on the fixing plates 12 at the upper and lower positions, the fixing plates 12 at the upper and lower positions are respectively connected with a ceiling 26 and the ground, a heat collection side upper air inlet 7 is arranged between the fixing plate 12 at the upper position and the ceiling 26, a heat collection side lower air inlet 10 is arranged between the fixing plate 12 at the lower position and the ground, and a heat collection side middle ventilation opening 21 is arranged at the middle position of the heat collection plate 13; an outer side air inlet 6 is arranged at the position, corresponding to the outer air duct 5, on the ceiling 26; an inner side air inlet 8 is arranged between the building inner wall 14 and the ceiling 26, an inner side air outlet 11 is arranged between the building inner wall 14 and the ground, and an inner side middle ventilation opening 22 is further arranged in the middle of the building inner wall 14.
The following preferred scheme is also adopted in the embodiment: the system further comprises a tunnel air duct, the tunnel air duct comprises a buried pipe 18, the buried pipe 18 is provided with a tunnel air port 19 for air intake, a tunnel air heat-insulating layer 20 wraps the outside of the buried pipe 18, an outer side lower air port 9 is arranged between an air outlet of the buried pipe 18 and the outer air duct 5, an air outlet of the buried pipe 18 enters an indoor fresh air flow channel 24 through an indoor fresh air inlet 23, the indoor fresh air flow channel 24 is buried under the ground surface, and an air outlet of the indoor fresh air flow channel is communicated with the interior of the building through a fresh air diffuser 25. The heat storage column 3 is a vacuum heat storage column, and comprises a heat storage pipe 16, a vacuum pipe 17 is sleeved outside the heat storage pipe 16, the vacuum heat storage column adopts calcium chloride hexahydrate as a phase change material, the calcium chloride hexahydrate contains 3.0% of barium hydroxide, and the phase change temperature is 28.1 ℃. The PC solar panel 1 is processed from a polycarbonate resin. The outer side of the PC sunlight panel 1 is pasted with a dustproof film 2, and the dustproof film 2 is transparent. And electromagnetic switch valves are arranged at the heat collection side upper air inlet 7, the heat collection side lower air inlet 10, the heat collection side middle vent 21, the outer side upper air inlet 6, the inner side upper air inlet 8, the inner side lower air inlet 11, the inner side middle vent 22 and the outer side lower air inlet 9 and are controlled to be opened and closed through the electromagnetic switch valves. A temperature sensor and an automatic control device are arranged in a building room with the temperature to be regulated. And green plants are cultivated on the ground outside the building above the buried pipe 18.
In the specific working process of the embodiment, according to the difference of seasons and day and night, the system is divided into four working conditions of day in winter, night in winter, day in summer and night in summer, and the working conditions are named as working condition one, working condition two, working condition three and working condition four in sequence.
1) For the winter day condition (condition one), the system operates in the heating mode, and the operation adjustment is as shown in fig. 4. At the moment, the outer side air inlet 6, the heat collection side middle ventilation opening 21, the inner side middle ventilation opening 22 and the indoor fresh air inlet 23 are kept closed, and the rest air inlets are kept opened; the tunnel air enters the system from the outer side lower air inlet 9 and is fully mixed with the indoor cold air flowing out through the inner side lower air inlet 11, and the effect of preheating the indoor air is achieved. Under the action of solar radiation, the heat storage column 3 absorbs heat and the temperature rises. The mixed air flow is divided at the heat accumulation column 3, a part of the mixed air flow flows into the inner air duct 15, and a part of the mixed air flow flows into the outer air duct 5. The heat storage column 3 heats the air in the inner air duct; the solar radiation and the heat storage column 3 act together to heat the air of the outer air duct. Under the action of density difference and wind pressure, the system forms double-air-channel air circulation flow, and heat is brought into the room through the heating air flow from the inner side air inlet 8, so that the aim of passive heating in winter is fulfilled. Meanwhile, in the daytime, the heat storage columns 3 absorb latent heat and store heat through a phase change process. The tunnel air has the functions of supplementing fresh air in the room and preheating cold air in the room.
2) And for the working condition (working condition II) at night in winter, the system runs a heat preservation mode. When latent heat stored in the heat storage column 3 in the daytime is not released completely, the inner side air ports 8 and 11 are kept opened, and the other air ports are kept closed; the system enters the exothermic phase and the operational adjustments are shown in figure 5. The heat storage column 3 releases latent heat to heat the air in the inner flow passage, and the heat is sent into the room.
After the latent heat of the heat storage column 3 is released, the thermistor senses and transmits a command to the controller, all air ports of the system are kept in a closed state at the moment, the system is closed and enters a heat preservation stage, and the operation and regulation are shown in fig. 6. Because there are heat-retaining column heat preservation 4 and the multilayer thermal protection of the inner runner air that does not flow this moment, the system can effectively reduce the heat that scatters and disappears night, realizes the heat retaining target in winter.
3) For summer daytime condition (condition three), the system operates the ventilation mode, and the operation adjustment is as shown in fig. 7. At the moment, the inner side upper air inlet 8, the outer side lower air inlet 9, the heat collection side lower air inlet 10 and the inner side lower air inlet 11 are kept closed, and the rest air inlets are kept opened; the tunnel wind enters an indoor fresh wind channel 24 from an indoor fresh wind inlet 23, is sent into the room through a fresh wind diffuser 25, is used for supplementing fresh wind indoors, is mixed with indoor hot air, rises to the middle position of the system, enters an outer wind channel 5 and an inner wind channel 15 through a heat collection side middle ventilation opening 21 and an inner side middle ventilation opening 22 respectively, is heated and rises under the combined action of solar radiation and a heat storage column 3, flows out of the room through an outer side wind inlet 6, and takes away heat. At this time, a part of heat is absorbed by the heat storage column 3, so that the heat flowing into the room is reduced, and the effect of cooling is achieved. The tunnel wind has the functions of supplementing indoor fresh air and pre-cooling indoor hot air.
4) For the summer night condition (condition four), the system operates in cooling mode, and the operation adjustment is as shown in fig. 8. At the moment, the inner side upper air inlet 8, the outer side lower air inlet 9, the heat collection side lower air inlet 10 and the inner side lower air inlet 11 are kept closed, and the rest air inlets are kept opened; the tunnel wind gets into indoor new trend runner 24 by indoor new trend entry 23, send into indoor through new trend diffuser 25, for indoor supplementary new trend, mix with indoor hot-air, rise to system middle level position, get into outer wind channel 5 and interior wind channel 15 through thermal-arrest side middle part vent 21, inboard middle part vent 22 respectively, the lower air of temperature carries out the heat exchange with heat accumulation post 3, the double-wind channel air is heated and rises, and flow through outside air inlet 6, bring the heat out outdoor, heat accumulation post 3 accomplishes the phase transition process simultaneously, release the heat, do preparation for absorbing the heat the next day.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the invention should be included in the scope of the invention.

Claims (8)

1. The utility model provides a multitube heat-retaining formula double-flow-passage ventilation regulation and control system based on solar drive which characterized in that: the heat collecting wall comprises a peripheral wall surface, a heat collecting wall surface, a ceiling (26) and a building inner wall (14), wherein the ceiling (26) is connected with the peripheral wall surface to form an integral outer frame, is positioned outside a building with the temperature to be regulated and controlled, and surrounds the heat collecting wall surface; the peripheral wall surface faces south and is positioned on the sunny side; the heat collection wall surface is opposite to the peripheral wall surface, an outer air channel (5) is arranged between the heat collection wall surface and the peripheral wall surface, and an inner air channel (15) is arranged between the heat collection wall surface and the building inner wall (14);
the peripheral wall surface comprises a PC sunlight plate (1), and the PC sunlight plate (1) is transparent; the heat collection wall surface comprises a plurality of heat storage columns (3) which are vertically and orderly arranged, heat storage column heat insulation layers (4) are arranged outside the heat storage columns (3), and heat collection plates (13) are arranged on the inner sides of heat storage arrays formed by the heat storage columns (3); the heat accumulation columns (3) are arranged on the fixing plates (12) at the upper and lower positions, the fixing plates (12) at the upper and lower positions are respectively connected with a ceiling (26) and the ground, a heat collection side upper air inlet (7) is arranged between the fixing plate (12) at the upper position and the ceiling (26), a heat collection side lower air inlet (10) is arranged between the fixing plate (12) at the lower position and the ground, and a heat collection side middle ventilation opening (21) is arranged at the middle position of the heat collection plate (13); an outer side air inlet (6) is arranged at the position, corresponding to the outer air duct (5), on the ceiling (26); an inner side air inlet (8) is arranged between the building inner wall (14) and the ceiling (26), an inner side air outlet (11) is arranged between the building inner wall (14) and the ground, and an inner side middle ventilation opening (22) is further arranged in the middle of the building inner wall (14).
2. The solar-drive-based multi-pipe heat storage type double-flow-channel ventilation regulating and controlling system is characterized in that: still include tunnel wind channel, tunnel wind channel includes buried pipe (18), buried pipe (18) are equipped with tunnel wind gap (19) of air inlet, buried pipe (18) outside parcel has tunnel wind heat preservation (20), be equipped with outside lower wind gap (9) between the air outlet of buried pipe (18) and outer wind channel (5), the air outlet of buried pipe (18) passes through indoor new trend entry (23) and gets into indoor new trend runner (24), indoor new trend runner (24) bury in the earth's surface, and its air outlet passes through new trend diffuser (25) and the indoor intercommunication of building.
3. The solar-drive-based multi-pipe heat storage type double-flow-channel ventilation regulating and controlling system is characterized in that: the heat storage column (3) is a vacuum heat storage column and comprises a heat storage pipe (16), a vacuum pipe (17) is sleeved on the outer side of the heat storage pipe (16), the vacuum heat storage column adopts calcium chloride hexahydrate as a phase change material, 3.0% barium hydroxide is contained in the calcium chloride hexahydrate, and the phase change temperature is 28.1 ℃.
4. The solar-drive-based multi-tube heat storage type double-flow-passage ventilation regulating and controlling system as claimed in claim 1, wherein: the PC sunlight plate (1) is processed by polycarbonate resin.
5. The solar-drive-based multi-pipe heat storage type double-flow-channel ventilation regulating and controlling system is characterized in that: the dustproof film (2) is pasted on the outer side of the PC sunlight plate (1), and the dustproof film (2) is transparent.
6. The solar-drive-based multi-pipe heat storage type double-flow-channel ventilation regulating and controlling system according to claim 2, characterized in that: and electromagnetic switch valves are arranged at the heat collection side upper air inlet (7), the heat collection side lower air inlet (10), the heat collection side middle ventilation opening (21), the outer side upper air inlet (6), the inner side upper air inlet (8), the inner side lower air inlet (11), the inner side middle ventilation opening (22) and the outer side lower air inlet (9) and are controlled to be opened and closed through the electromagnetic switch valves.
7. The solar-drive-based multi-pipe heat storage type double-flow-channel ventilation regulating and controlling system according to claim 6, wherein: a temperature sensor and an automatic control device are arranged in a building room with the temperature to be regulated.
8. The solar-drive-based multi-pipe heat storage type double-flow-channel ventilation regulating and controlling system according to claim 2, characterized in that: and green plants are cultivated on the ground outside the building above the buried pipe (18).
CN202210720431.XA 2022-06-24 2022-06-24 Multi-pipe heat storage type double-flow-passage ventilation regulation and control system based on solar drive Pending CN114963582A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11754308B1 (en) * 2022-08-25 2023-09-12 Jason Sullins Apparatus and method for fresh air cooling of a residence or building utilizing a thermostat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11754308B1 (en) * 2022-08-25 2023-09-12 Jason Sullins Apparatus and method for fresh air cooling of a residence or building utilizing a thermostat

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