CN105928215B - Solar energy phase transition heat accumulation, heat recovery technology are applied in precast concrete maintaining process - Google Patents

Solar energy phase transition heat accumulation, heat recovery technology are applied in precast concrete maintaining process Download PDF

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Publication number
CN105928215B
CN105928215B CN201610250018.6A CN201610250018A CN105928215B CN 105928215 B CN105928215 B CN 105928215B CN 201610250018 A CN201610250018 A CN 201610250018A CN 105928215 B CN105928215 B CN 105928215B
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China
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air
operated valve
electrically operated
precast concrete
chamber
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CN201610250018.6A
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CN105928215A (en
Inventor
陈超
于楠
李印
张明星
凌浩恕
李娜
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Beijing University of Technology
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Beijing University of Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • 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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The application of solar energy phase transition heat accumulation, heat recovery technology in precast concrete maintaining process, belongs to regenerative resource application field.Device includes solar energy air heat collector, firing chamber, thermostatic chamber and cooling chamber；Solar energy air heat collector is provided with air supply duct, return air duct and No. 1 blower fan；The first air outlet and the first return air inlet are provided with thermostatic chamber, firing chamber is provided with the second air outlet and the second return air inlet；The air outlet below the precast concrete in the return air inlet below precast concrete, the first return air duct, No. 2 blower fans, the first air supply duct, cooling chamber in firing chamber is sequentially connected, the second return air duct in suspended hood, residual neat recovering system in cooling chamber above precast concrete, the second air supply duct in No. 3 blower fans, residual neat recovering systems, cyclonic air outlet are sequentially connected, cyclonic air outlet connection firing chamber.The present invention reduces precast concrete maintaining process energy consumption, reduces carbon emission.

Description

Solar energy-phase-transition heat-storage, heat recovery technology are in precast concrete maintaining process Middle application
Technical field
The present invention relates to one kind by solar energy-phase-change heat storage technology, heat recovery technology integrated use in precast concrete The high-efficiency energy-saving technology of component conservation technique, belong to regenerative resource application field.
Background technology
Also it is precast concrete while housing industrialization turns into development trend with the fast development of China's urbanization The development of component production and processing industry brings opportunity.However, in precast concrete production process, to reach requirement The demoulding or prestressing force put Zhang Qiangdu, not only need the curing time up to 10-18 hour, and it is also required to provide largely Maintaining process heat, belongs to high energy consumption processing technology.Existing precast concrete maintaining process process be broadly divided into it is quiet stop, Heating, constant temperature, cooling four-stage, power consumption occur mainly in heating and constant temperature stage.Temperature rise period is usually required prefabricated structure Part is heated to 30~40 DEG C from normal temperature state in firing chamber and maintained 2~3 hours；Constant temperature stage needs will go out from firing chamber The pre- hot component come continues to be warming up to 50~60 DEG C or so in thermostatic chamber and maintained 6~7 hours；Temperature-fall period then need by from The hot component that thermostatic chamber comes out was quickly cooled to 20~30 DEG C in greenhouse by 2~3 hours.Whole maintaining process process, one Aspect needs to continue to provide substantial amounts of heat energy, on the other hand there is also a need for constantly providing the substantial amounts of energy that cools.How With reference to the characteristics of precast concrete maintaining process, effectively solve the problems, such as the energy recycling of process energy process, be solution The certainly key point of maintaining process high energy consumption issues.Therefore, the present invention proposes one kind using solar energy as heating and constant temperature rank The supplemental heat source of Duan Jiare energy；The waste heat energy of temperature-fall period is effectively reclaimed simultaneously and as the supplemental heat of temperature rise period heating energy Source；And the phase change walling materials of high accumulation of energy are applied to firing chamber and thermostatic chamber wall-body energy saving, to improve architectural exterior-protecting construction Thermal inertia and solar thermal utilization rate energy-saving design theory, with reach efficiently using solar energy, waste heat energy, to greatest extent Precast concrete maintaining process fossil energy dosage is reduced, production cost is reduced, reduces carbon emission, the mesh of environmental protection 's.
The content of the invention
The present invention proposes one kind by reasonably optimizing precast concrete maintaining process flow, is led to using waste heat recovery Wind system effectively reclaims the waste heat of cooling chamber the waste heat ventilation preheating that energy supply is preheated for firing chamber precast concrete System, to improve energy circulation cascade utilization rate；Propose that to exempt to track double thermal-collecting tubes based on the patent No. 201510085148.4 more The solar energy air heating systems of curved surface groove type solar air collector technology, solar energy is provided and supplied for thermostatic chamber and firing chamber Heat energy；Proposing will be according to a kind of cement base composite shaping phase change material mortars of patent No. ZL201010210819.2 and its preparation Cement composite shaping phase change material plate prepared by method stores with a kind of high-performance phase transformation that light-weight building building enclosure organically combines Hot composite lightweight wall constructs mode, to improve the thermal inertia and solar thermal utilization of firing chamber and thermostatic chamber architectural exterior-protecting construction Rate.
Present invention employs following technical scheme：
Used by the application of solar energy-phase-transition heat-storage, heat recovery technology in precast concrete maintaining process Device, it is characterised in that：
Including solar energy air heat collector, firing chamber, thermostatic chamber and the cooling chamber of precast concrete are placed with；
Solar energy air heat collector is provided with air supply duct, return air duct and No. 1 blower fan；The first air outlet is provided with thermostatic chamber With the first return air inlet, firing chamber is provided with the second air outlet and the second return air inlet；First air outlet, the first return air inlet, the second air-supply Mouth and the second return air inlet are controlled by the first electrically operated valve, the second electrically operated valve, the 3rd electrically operated valve and the 4th electrically operated valve respectively；
The return air inlet below precast concrete in firing chamber, the first return air duct in residual neat recovering system, No. 2 The air outlet below the precast concrete in the first air supply duct, cooling chamber in blower fan, residual neat recovering system connects successively Connect,
The second return air duct in suspended hood, residual neat recovering system, No. 3 wind in cooling chamber above precast concrete The second air supply duct, cyclonic air outlet in machine, residual neat recovering system are sequentially connected, cyclonic air outlet connection firing chamber.
Further, phase change thermal storage wall plate is affixed directly to firing chamber and/or thermostatic chamber wall-body energy saving, is formed with wall Passive type solar energy phase change thermal storage wall.
Further, the return air inlet below the precast concrete in firing chamber, first time in residual neat recovering system Plenum chamber is provided between wind pipeline.
Further, the first air supply duct in residual neat recovering system, below the precast concrete in cooling chamber Plenum chamber is provided between air outlet.
Using the method for described device, it is characterised in that：
When solar energy air heat collector outlet temperature is less than 40 DEG C, the 3rd electrically operated valve 23, the 4th motor-driven valve in firing chamber Door 24, the first electrically operated valve 10 in thermostatic chamber, the second electrically operated valve 22 and No. 1 blower fan are turned off not blowing；When solar energy is empty When temperature at the air outlet of gas heat collector 2 is more than 40 DEG C less than 60 DEG C, the first electrically operated valve 10, the second motor-driven valve in thermostatic chamber Door 22 is closed is not blown to thermostatic chamber, and the 3rd electrically operated valve 23, the 4th electrically operated valve 24 and No. 1 blower fan 3 in firing chamber are opened, The hot blast that solar energy air heat collector 2 comes out is sent to heating by air supply duct 4, the 3rd electrically operated valve 23, the second air outlet 7 Room, the air of low temperature return to solar energy sky by the second return air inlet 9, the 4th electrically operated valve 24, return air duct 5 by No. 1 blower fan 3 Gas heat collector 2；When temperature at the air outlet of solar energy air heat collector 2 is more than 60 DEG C, the 3rd electrically operated valve in firing chamber 23rd, the 4th electrically operated valve 24 is closed does not blow to firing chamber, the first electrically operated valve 10, the and of the second electrically operated valve 22 in thermostatic chamber No. 1 blower fan 3 is opened, and the hot blast that solar energy air heat collector 2 comes out is blown by air supply duct 4, the first electrically operated valve 10, first Mouth 6 is sent to thermostatic chamber, and the air of low temperature passes through No. 1 blower fan by the first return air inlet 8, the second electrically operated valve 22, return air duct 5 3 return to solar energy air heat collector 2.
Using the method for described device, it is characterised in that：
The air of low temperature passes through first in the return air inlet below precast concrete, residual neat recovering system in firing chamber Return air duct return air duct, sent again by the first air supply duct, the air outlet in residual neat recovering system after No. 2 blower fans pressurize Enter the lower section of cooling chamber's precast concrete, precast concrete in cooling chamber is cooled.Precast concrete Heat is discharged in cooling chamber, the air of high temperature passes through in the suspended hood above precast concrete, residual neat recovering system The second return air duct, the second air supply duct in No. 3 blower fans, residual neat recovering systems, cyclonic air outlet be transported to firing chamber Top, with firing chamber low temperature precast concrete carry out forced-convection heat transfer discharge heat.
The course of work of the present invention is as follows：
The insulation of firing chamber and thermostatic chamber roof is opened when daytime, weather was fine, carries out solar energy curing.Simultaneously Solar irradiation is mapped on phase change thermal storage wall, and the solar radiation heat for being radiated at its surface is stored in the form of latent heat and sensible heat In wall；When temperature at more curved surface groove type solar air collector air outlets is less than 40 DEG C, firing chamber and thermostatic chamber are sent Electrically operated valve and blower fan on wind pipeline are turned off not blowing；Temperature at heat collector air outlet is more than 40 DEG C and is less than 60 DEG C When, the electrically operated valve on thermostatic chamber air supply duct is closed does not blow to thermostatic chamber, electrically operated valve on firing chamber air supply duct and Blower fan is opened, and firing chamber is arrived in air-supply；
When temperature at heat collector air outlet is more than 60 DEG C, the electrically operated valve on firing chamber air supply duct is closed not to liter Greenhouse is blown, and the electrically operated valve and blower fan on thermostatic chamber air supply duct are opened, and thermostatic chamber is arrived in air-supply.Precast concrete is by giving birth to Producing line it is offline by it is quiet stop reaching 15 DEG C or so after, be sent to firing chamber.Precast concrete absorbs heat in firing chamber Heating, the air of surrounding is released after thermal temperature reduces to be conveyed by the air port below precast concrete, airduct, blower fan To the lower section of cooling chamber's precast concrete, precast concrete is cooled.In 60 DEG C of temperature environment of thermostatic chamber The middle precast concrete for placing 6-7 hour, which is entered in cooling chamber, to cool, and discharges heat, obtains thermal temperature rise Room air the top of firing chamber is transported to by the suspended hood, airduct, blower fan on precast concrete top, with heating The precast concrete of lower temperature carries out forced-convection heat transfer and discharges heat in room, and temperature reduces.Go round and begin again, constantly Circulation, improve energy circulation cascade utilization rate.
The insulation of firing chamber and thermostatic chamber roof is closed when cloudy day on daytime, reduces scattering and disappearing for heat as far as possible.Together When solar energy heating supply air system blower fan and electrically operated valve close.Waste heat recovery ventilating system opens work.
When night is idle：The insulation quilt on firing chamber and thermostatic chamber roof is closed, closes the systematic ventilation blower of institute And valve, now phase change thermal storage wall heat is discharged make next day when working by day the initial temperature of fog room be unlikely to too It is low, save the energy.Beneficial effects of the present invention are：It is proposed phase change thermal storage wall material, more curved solar energy air collection first Hot device and residual neat recovering system organically combine, and are applied in the maintaining process of precast concrete, fill Divide and utilize this green energy resource of solar energy, effectively reduce precast concrete maintaining process energy consumption, reduce carbon emission.
Brief description of the drawings
The system diagram of Fig. 1 present invention；
The solar energy air heat collector scheme of installation of Fig. 2 present invention；
In figure：1st, phase change thermal storage wall, 2, solar energy air heat collector, 3, No. 1 blower fans, 4, solar energy air heat collector system The air supply duct of system, 5, the return air duct of solar energy air heat collector system, the 6, first air outlet, the 7, second air outlet, 8, One return air inlet, the 9, second return air inlet, the 10, first electrically operated valve, 12, precast concrete, 13, No. 2 blower fans (are pacified in wind ditch Dress), 14-1, No. 1 plenum chamber, 14-2, No. 2 plenum chambers, 14-3, No. 3 plenum chambers, 14-4, No. 4 plenum chambers, 15-1, waste heat recovery The first air supply duct in system, the second air supply duct in 15-2, residual neat recovering system, in 16-1, residual neat recovering system First return air duct, the second return air duct in 16-2, residual neat recovering system, 17-1, the 3rd air outlet, 17-2, the 4th air-supply Mouthful, 17-3, the 5th air outlet, 17-4, the 6th air outlet, 18-1, the 3rd return air inlet, 18-2, the 4th return air inlet, 18-3, the 5th Return air inlet, 18-4, the 6th return air inlet, 19-1, the first suspended hood, 19-2, the second suspended hood, 20, cyclonic air outlet, 21, No. 3 wind Machine (can be placed on cooling indoor hoisting), the 22, second electrically operated valve, the 23, the 3rd electrically operated valve, the 24, the 4th electrically operated valve, 25, branch Support
Embodiment
Based on the precast concrete maintaining process flow after optimization, below firing chamber precast concrete die station Return air inlet, ventilation shaft and axial flow blower are set, air outlet and ventilation are set below cooling chamber's precast concrete die station Pipeline.The construction area of firing chamber and cooling chamber is 500 square meters, fan delivery 18000m3/ h, each air ports size are 800mmx200mm, wind speed 2m/s, for air outlet away from die station bottom 150mm, the wind speed in airduct is 3m/s to 7m/s.By logical The air that wind pipeline and ventilation blower will heat up low temperature below the die station of room is delivered to below cooling chamber's die station and blows to die station, Cryogenic air With coming out 50~60 DEG C of precast concrete forced-convection heat transfers into cooling chamber from thermostatic chamber, Air Temperature after heat is obtained Degree rise, while precast concrete releases heat, temperature reduces；Set above cooling chamber's precast concrete die station Suspended hood, ventilation shaft and axial flow blower, common Quadruplet pipe road.Each fan delivery is 4500m3/ h, each suspended hood oral area chi Very little is 1000mmx300mm, wind speed 3m/s, and away from 300mm at the top of precast concrete, the wind speed in airduct is suspended hood mouth 3m/s to 7m/s.The air of higher temperature above cooling chamber's die station is delivered to by firing chamber by ventilation shaft and ventilation blower, passed through Swirl diffuser blows to die station, a diameter of 600mm of swirl diffuser, wind speed 5.8m/s so that hot blast as far as possible be sent to liter Greenhouse.Higher temperature air changes with 15 DEG C or so of the precast concrete forced convection after quiet stop on production line out Air themperature reduces after heat releases heat, while precast concrete absorbs heat, temperature rise.
Firing chamber and thermostatic chamber need to provide certain thermal source to maintain the hot environment of 30~40 DEG C and 50~60 DEG C.It is existing Generally required in some fog room technique and provide steam to be used as thermal source.The present invention proposes higher than thermostatic chamber using workshop More than 10 meters of the characteristics of, above thermostatic chamber roof, workshop is higher by that section of gable of thermostatic chamber by setting support frame to pacify Dress exempts to track the more curved surface groove type solar air collectors of double thermal-collecting tubes.Firing chamber and thermostatic chamber share heat collector, each thermal-arrest The length of unit is 4 meters, sets 27 heat collection units altogether.Wherein 3 heat collection units are composed in series one group, and 9 groups in parallel again.Air The total blast volume of heat collector is 1300m3/ h, blast velocity control are in 5.2m/s, blast main sizeIn firing chamber and perseverance Greenhouse bottom place near the ground sets return air inlet, return air duct, blower fan, electrically operated valve；Top set air outlet, air supply duct, Electrically operated valve.Temperature sensor is provided with the air outlet of solar energy air heat collector, the temperature at heat collector air outlet is less than At 40 DEG C, firing chamber and electrically operated valve on thermostatic chamber air supply duct and blower fan are turned off not blowing；Temperature at air outlet Firing chamber is sent into when being less than 60 DEG C more than 40 DEG C；Temperature at air outlet is sent into thermostatic chamber when being more than 60 DEG C, is sent by airduct Forced-convection heat transfer is carried out to indoor top and precast concrete, to provide absorption required for precast concrete heating Heat, reduce steam consumption quantity.
The roof of firing chamber and thermostatic chamber is glass roof, using solar energy curing, while will heat up room and thermostatic chamber Wall is according to existing patented technology --- and a kind of cement base composite shaping phase change material mortar and preparation method thereof prepares low temperature (40 DEG C) phase-transition heat-storage combined wall and medium temperature (60 DEG C) phase-transition heat-storage combined wall.The present invention can be straight by phase change thermal storage wall plate Connect the wall-body energy saving for being pasted onto firing chamber and thermostatic chamber, paste heat-preserving plate of material on the outside of wall, utilize the higher heat of phase-change material Capacitive, fully absorb and stored in the form of latent heat and sensible heat the solar thermal energy for being radiated at phase change thermal storage wall plate surface daytime, The heat stored is released to greenhouse again when night does not work, makes the initial temperature of next day fog room when working by day unlikely In too low, raising solar thermal utilization rate.Cooling chamber roof is concrete heat-insulating roof, wall outer side paste heat-preserving plate of material, Reduce the precast concrete of high temperature as far as possible makes this partial heat slattern in vain to surrounding environment heat release.
The density of the phase change heat storage material is 900kg/m3, thickness 40mm.
The thickness of the adiabator plate is 60~130mm, and its thickness regards the outdoor weather condition that fog room builds area And determine.
1~2 pair of solar energy-phase-transition heat-storage of the invention, the system of constructing of residual neat recovering system are carried out below in conjunction with the accompanying drawings Describe in detail.
Phase change thermal storage wall plate 1 is affixed directly to firing chamber and thermostatic chamber wall-body energy saving, and passive type is formed too with wall Positive energy phase change thermal storage wall.The density of phase change heat storage material is 900kg/m3, thickness 40mm.
2 three one series connection of solar energy air heat collector, nine one in parallel.Solar energy air heat collector 2 after parallel connection exports When temperature is less than 40 DEG C, the first electrically operated valve in firing chamber in the 3rd electrically operated valve 23, the 4th electrically operated valve 24, thermostatic chamber 10th, the second electrically operated valve 22 and No. 1 blower fan 3 (blower fan is not limited to be positioned only in thermostatic chamber) are turned off not blowing；When too When temperature at the positive energy air outlet of air collector 2 is more than 40 DEG C less than 60 DEG C, the first electrically operated valve 10, second in thermostatic chamber Electrically operated valve 22 is closed does not blow to thermostatic chamber, the 3rd electrically operated valve 23, the 4th electrically operated valve 24 and No. 1 blower fan in firing chamber 3 are opened, and the hot blast that solar energy air heat collector 2 comes out is sent by air supply duct 4, the 3rd electrically operated valve 23, the second air outlet 7 To firing chamber, the air of low temperature is returned to too by the second return air inlet 9, the 4th electrically operated valve 24, return air duct 5 by No. 1 blower fan 3 Positive energy air collector 2；When temperature at the air outlet of solar energy air heat collector 2 is more than 60 DEG C, the 3rd electricity in firing chamber Movable valve 23, the 4th electrically operated valve 24 are closed does not blow to firing chamber, the first electrically operated valve 10, the second motor-driven valve in thermostatic chamber 22 and No. 1 blower fans 3 of door are opened, and the hot blast that solar energy air heat collector 2 comes out passes through air supply duct 4, the first electrically operated valve 10, the One air outlet 6 is sent to thermostatic chamber, and the air of low temperature passes through 1 by the first return air inlet 8, the second electrically operated valve 22, return air duct 5 Number blower fan 3 returns to solar energy air heat collector 2 (as shown in Figure 1).Solar energy air heat collector 2 is arranged on life by support frame 25 Production workshop is higher by that section of gable of thermostatic chamber (as shown in Figure 2).
As shown in figure 1, in firing chamber low temperature air by the 3rd return air inlet 18-1 of the lower section of precast concrete 12, 4th return air inlet 18-2, the 5th return air inlet 18-3, the 6th return air inlet 18-4, No. 3 plenum chamber 14-3, No. 4 plenum chamber 14-4, waste heats The first return air duct return air duct 16-1 in recovery system, after No. 2 blower fans 13 pressurize again by residual neat recovering system The first air supply duct 15-1, No. 1 plenum chamber 14-1, No. 2 plenum chamber 14-2, the 3rd air outlet 17-1, the 4th air outlet 17-2, 5th air outlet 17-3, the 6th air outlet 17-4 are sent into the lower section of cooling chamber's precast concrete 12, to prefabricated in cooling chamber Concrete component 12 is cooled.Precast concrete 12 discharges heat in cooling chamber, and the air of high temperature passes through prefabricated The second return air duct in the first suspended hood 19-1, the second suspended hood 19-2, residual neat recovering system above concrete component 12 The second air supply duct 15-2, cyclonic air outlet 20 in 16-2, No. 3 blower fans 21, residual neat recovering systems are transported to firing chamber The precast concrete of low temperature carries out forced-convection heat transfer and discharges heat in top, with firing chamber.Wherein, in the present embodiment No. 2 blower fans 13 are arranged in wind ditch, air quantity 18000m3/h；No. 3 blower fans 21 are lifted under cooling chamber roof, per Fans wind Measure as 4500m3/ h, totally 4.
Above is the exemplary embodiments of the present invention, implementation not limited to this of the invention.

Claims (2)

1. the application of solar energy-phase-transition heat-storage, heat recovery technology in precast concrete maintaining process, used dress Put including solar energy air heat collector, be placed with firing chamber, thermostatic chamber and the cooling chamber of precast concrete；
Solar energy air heat collector is provided with air supply duct, return air duct and No. 1 blower fan；The first air outlet and the are provided with thermostatic chamber One return air inlet, firing chamber are provided with the second air outlet and the second return air inlet；First air outlet, the first return air inlet, the second air outlet and Second return air inlet is controlled by the first electrically operated valve, the second electrically operated valve, the 3rd electrically operated valve and the 4th electrically operated valve respectively；
The return air inlet below precast concrete in firing chamber, the first return air duct in residual neat recovering system, No. 2 wind The air outlet below the precast concrete in the first air supply duct, cooling chamber in machine, residual neat recovering system is sequentially connected,
The second return air duct in suspended hood, residual neat recovering system, No. 3 blower fans in cooling chamber above precast concrete, The second air supply duct, cyclonic air outlet in residual neat recovering system are sequentially connected, cyclonic air outlet connection firing chamber；
It is characterized in that：
When solar energy air heat collector outlet temperature is less than 40 DEG C, the 3rd electrically operated valve, the 4th electrically operated valve, constant temperature in firing chamber The first electrically operated valve, the second electrically operated valve and No. 1 blower fan in room are turned off not blowing；When solar energy air heat collector air-out When temperature at mouthful is more than 40 DEG C less than 60 DEG C, the first electrically operated valve, the second electrically operated valve in thermostatic chamber are closed not to constant temperature Room is blown, and the 3rd electrically operated valve, the 4th electrically operated valve and No. 1 blower fan in firing chamber are opened, and solar energy air heat collector comes out Hot blast firing chamber is sent to by air supply duct, the 3rd electrically operated valve, the second air outlet, the air of low temperature passes through the second return air Mouth, the 4th electrically operated valve, return air duct return to solar energy air heat collector by No. 1 blower fan；When solar energy air heat collector 2 goes out When temperature at air port is more than 60 DEG C, the 3rd electrically operated valve, the 4th electrically operated valve in firing chamber are closed does not blow to firing chamber, The first electrically operated valve, the second electrically operated valve and No. 1 blower fan in thermostatic chamber are opened, and the hot blast that solar energy air heat collector comes out leads to Cross air supply duct, the first electrically operated valve, the first air outlet and be sent to thermostatic chamber, the air of low temperature passes through the first return air inlet, second Electrically operated valve, return air duct return to solar energy air heat collector by No. 1 blower fan.
2. the application of solar energy-phase-transition heat-storage, heat recovery technology in precast concrete maintaining process, used dress Put including solar energy air heat collector, be placed with firing chamber, thermostatic chamber and the cooling chamber of precast concrete；
Solar energy air heat collector is provided with air supply duct, return air duct and No. 1 blower fan；The first air outlet and the are provided with thermostatic chamber One return air inlet, firing chamber are provided with the second air outlet and the second return air inlet；First air outlet, the first return air inlet, the second air outlet and Second return air inlet is controlled by the first electrically operated valve, the second electrically operated valve, the 3rd electrically operated valve and the 4th electrically operated valve respectively；
The return air inlet below precast concrete in firing chamber, the first return air duct in residual neat recovering system, No. 2 wind The air outlet below the precast concrete in the first air supply duct, cooling chamber in machine, residual neat recovering system is sequentially connected,
The second return air duct in suspended hood, residual neat recovering system, No. 3 blower fans in cooling chamber above precast concrete, The second air supply duct, cyclonic air outlet in residual neat recovering system are sequentially connected, cyclonic air outlet connection firing chamber；
It is characterized in that：
The air of low temperature passes through the first return air in the return air inlet below precast concrete, residual neat recovering system in firing chamber Pipeline, after No. 2 blower fans pressurize again by the first air supply duct in residual neat recovering system, that air outlet is sent into cooling chamber is prefabricated The lower section of concrete component, precast concrete in cooling chamber is cooled；Precast concrete is released in cooling chamber Heat is released, the air of high temperature passes through the second backwind tube in the suspended hood above precast concrete, residual neat recovering system Road, the second air supply duct in No. 3 blower fans, residual neat recovering systems, cyclonic air outlet are transported to the top of firing chamber, with heating The precast concrete of low temperature carries out forced-convection heat transfer and discharges heat in room.
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CN108592424B (en) * 2018-04-17 2020-04-21 任玉成 Prefabricated component former for building based on solar energy
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CN103404391B (en) * 2013-07-31 2015-01-07 北京工业大学 Solar active-passive heat storage 'triple' structure wall building system of solar greenhouse
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