CN105698243A - Heating system integrated with greenhouse building - Google Patents
Heating system integrated with greenhouse building Download PDFInfo
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- CN105698243A CN105698243A CN201610157695.3A CN201610157695A CN105698243A CN 105698243 A CN105698243 A CN 105698243A CN 201610157695 A CN201610157695 A CN 201610157695A CN 105698243 A CN105698243 A CN 105698243A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1042—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Greenhouses (AREA)
Abstract
The invention discloses a heating system integrated with a greenhouse building. The system comprises an initiative heat collecting device, a heat insulation and accumulation water tank, an auxiliary heating device, a sun shielding device, a hot water conveying pipeline, a radiating device and a temperature sensing control device. The initiative heat collecting device is composed of a Fresnel lens array, a lens array framework and an absorber. The initiative heat collecting device is installed on a roof of a greenhouse buffering room and integrated with the greenhouse building. The heat insulation and accumulation water tank is arranged in the greenhouse buffering room, a stainless steel inner container is adopted in the heat insulation and accumulation water tank, polyurethane is sprayed to the middle of the heat insulation and accumulation water tank for heat insulation, and a color plate is additionally arranged on the outer face of the heat insulation and accumulation water tank. The auxiliary heating device is located in the heat insulation and accumulation water tank. Solar radiant heat can be sufficiently collected and utilized by the heating system, a heating system of a traditional coal-fired boiler is replaced, and no pollution is generated in the heating process. The heat accumulation water tank of the heating system can release heat at night, and water can be maintained at a high temperature. The heating system is low in manufacturing cost.
Description
Technical field
The present invention relates to agricultural engineering technology field, be more particularly to a kind of heating system integrated with Greenhouse building。
Background technology
Suitable temperature is to ensure that the necessary factor of plant growing, and the temperature of inside greenhouse is subject to ectocine, often occurs meeting the low temperature phenomenon of plant growing requirement winter。In the greenhouse of some particular design, it is easier to this situation occurs。Such as, the negative and positive greenhouse of emerging development in the last few years, owing to Qi Yinpeng is in the shade of north orientation, it is impossible to directly obtain sun heat radiation, therefore the temperature in the moon in winter canopy is lower than common heliogreenhouse。In the winter of northern China, how under cold outdoor weather condition, it is ensured that greenhouse remains adapted to the temperature conditions of plant growing, is sixty-four dollar question in Design of Greenhouse, construction and use。
Traditional greenhouse heating mode generally adopts coal-burning boiler to heat, and improves indoor temperature, this mode of heating not only invest high with operating cost, efficiency is low, but also can produce substantial amounts of harmful gas, to environment。
Relevant information shows, China is the country that solar energy resources is very abundant, 2/3rds area year sunshine amount more than 2200 hours, annual radiant all quality is approximately in annual 3340～8360MJ/ square metre, be equivalent to 110～250kg standard coal/square metre。From the distribution of whole nation radiation amount in solar year, the solar radiation total amount of the wide geographic area such as Tibet, Qinghai, Xinjiang, Southern Nei Mongol, Shanxi, North Shaanxi, Hebei, Shandong, Liaoning, Technique in Western Jilin Province is very big。
If this inexhaustible, nexhaustible clean reproducible energy of solar energy can be made good use of, provide heating for hothouse production, it will greatly reduce coal-fired dependence, it is achieved the efficient energy-saving in greenhouse produces。
It addition, heating system and Greenhouse building through integrated design combine, it is possible to effectively utilize the roof space of Greenhouse building, with building harmony, personnalité Greenhouse building artistic image can be advantageously formed in appearance。
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is how to collect fully and utilize solar radiant heat, substitutes the heating system of tradition coal-burning boiler, and heating process does not produce any pollution；How to fully absorb solar radiant heat, can effectively save the energy, it is achieved the low-carbon energy-saving in greenhouse efficiently produces；The heating system and the Greenhouse building that how to make integrated design combine, and effectively utilize the roof space of Greenhouse building, in appearance with building harmony, advantageously form personnalité Greenhouse building artistic image；How to adopt Automated condtrol, be conducive to the subenvironment accurately controlling in greenhouse；How thermal isolation and heat storage makes heat release at night, continues the water in heating water tank, makes the temperature that water maintenance is higher, saves the energy；And it is convenient for changing component, reduce cost；Thus providing a kind of heating system integrated with Greenhouse building。
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of heating system integrated with Greenhouse building, described system includes: actively heat collector, thermal isolation and heat storage water tank, assisted heating device, solar protection devices, delivery pipeline, heat abstractor and temperature sensing control device；Actively heat collector is made up of fresnel lens array, lens arra skeleton and absorber；Actively heat collector is arranged on (management house) roof between greenhouse buffering, and Greenhouse building forms one, is used for collecting, assembling and absorb solar radiant heat；Thermal isolation and heat storage water tank is placed between greenhouse buffering in (management house), adopts stainless steel inner container, intermediate urethane insulation bed course, the additional color steel in outside, for storing the hot water of actively heat collector heating；Assisted heating device is arranged in thermal isolation and heat storage water tank, is used for ensureing round-the-clock hot water supply；Solar protection devices is become by semicircle light steel skeleton, sunshade curtain and drive train, is mainly used in that summer temp is too high or keeps the sun off during maintenance；Delivery pipeline for carrying hot water in greenhouse；Heat abstractor is used for the soil ground temperature and the temperature indoor air temperature that promote in greenhouse；Temperature sensing controls device and is made up of temperature sensor, electromagnetic valve, temperature controller and water circulating pump, electromagnetic valve is connected with temperature controller and water circulating pump, when reaching certain temperature requirement, control being turned on and off of electromagnetic valve and water circulating pump, thus realizing the Automated condtrol of greenhouse heat supply。
Preferably, described lens arra skeleton is to be formed fixing grid by the light steel skeleton that semicircle is spherical is interlaced, and the direct ironware pre-buried with on roof between greenhouse buffering of array backbone is connected。
Preferably, described fresnel lens array is in the light steel skeleton grid that semicircle is spherical, inlays multiple Fresnel Lenses, and lens focus is positioned at absorber surface, and focal length is the distance that Fresnel Lenses arrives absorber surface tangent line。
Preferably, described absorber is to adopt steel plate to be fabricated in hemispherical empty, outer topcoating solar selective coat；The external cold water inlet of absorber and hot water outlet pipe。
Preferably, between described greenhouse buffering, its position is located at side, greenhouse, and roofing adopts flat roof, and roof boarding adopts armoured concrete slab, and actively heat collector is arranged on roof boarding, actively arranges polyurethane heat-insulation bed course between heat collector and roof boarding。
Preferably, additional layer steel plate, employing heat-storing material filling between two-layered steel plates again outside the inner bag of described thermal isolation and heat storage water tank。
Preferably, described assisted heating device is arranged in thermal isolation and heat storage water tank, adopts Electric heating；When the water temperature in thermal isolation and heat storage water tank is lower than certain limit value, it is possible to automatically turn on, it is used for ensureing round-the-clock hot water supply；When the water temperature in thermal isolation and heat storage water tank is higher than certain limit value, it is possible to be automatically switched off to save the energy；Described assisted heating device adopts manually opened and automatically turns on two ways。
Preferably, described solar protection devices is arranged on outside active heat collector, semicircle light steel skeleton radical is three, sunshade curtain is connected with jump ring by draw-in groove with light steel skeleton, rotating with the diameter of active heat collector for rotating axle, the mode of rotation adopts manually or gear drives machine to drive。
Preferably, arranging temperature sensor in described active heat collector outlet and thermal isolation and heat storage water tank, when in heat collector, hot water temperature reaches the temperature set, temperature controller order electromagnetic valve starts, hot water is entered in thermal isolation and heat storage water tank, promote the water temperature in thermal isolation and heat storage water tank；When in heat collector, water temperature is lower than the temperature set, temperature controller order electromagnetic valve starts, and is entered by water in thermal isolation and heat storage water tank, it is achieved evacuation and anti-freezing。
Preferably, when the described water level in thermal isolation and heat storage water tank reaches the upper limit position set, closed electromagnetic valve；When the temperature difference of the water in hot water temperature and thermal isolation and heat storage water tank in active heat collector reaches the upper limit set, water circulating pump starts, and promotes the water temperature in thermal isolation and heat storage water tank；When the temperature difference of the water in hot water temperature and thermal isolation and heat storage water tank in active heat collector reaches the lower limit set, water circulating pump quits work。
(3) beneficial effect
Heating system of the present invention can collect and utilize solar radiant heat fully, substitutes the heating system of tradition coal-burning boiler, and heating process does not produce any pollution；Heating system of the present invention can fully absorb solar radiant heat, can effectively save the energy, it is achieved the low-carbon energy-saving in greenhouse efficiently produces；Heating system and Greenhouse building through integrated design combine, it is possible to effectively utilize the roof space of Greenhouse building, with building harmony, can advantageously form personnalité Greenhouse building artistic image in appearance；Adopt Automated condtrol, be conducive to the subenvironment accurately controlling in greenhouse；Being easily changed component, cost is relatively cheap；Thermal isolation and heat storage water tank in heat release at night, can continue the water in heating water tank, makes the temperature that water maintenance is higher, saves the energy。
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Fig. 1 is greenhouse south elevation schematic diagram；
Fig. 2 is greenhouse side elevation schematic diagram；
Fig. 3 is greenhouse roof schematic diagram；
Fig. 4 is greenhouse management room and active heat collector schematic diagram；
Fig. 5 is heating system operation logic figure of the present invention；
Accompanying drawing labelling: 1, fresnel lens array, 2, absorber, 3, solar protection devices, 4, between greenhouse buffering (management house), 5, warmhouse booth, 6, (management house) deck between greenhouse buffering, 7, manually or gear drive machine, 8, polyurethane heat-insulation bed course, 9, thermal isolation and heat storage water tank。
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail。Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention。
Fresnel lens array size and the volume of absorber in the present invention are relevant with the roofing area in greenhouse, below for ordinary greenhouse, set forth computational methods and the step of relation between foregoing invention design medium temperature chamber's heat supply total load and absorber volume:
(1), heating total heat duties in greenhouse calculates:
The heating total heat duties in greenhouse calculates according to the following formula:
Q=a1a2Q1+Q2+Q3 (1-1)
In formula: the heating total heat duties (W) in Q greenhouse；
A1 greenhouse structure additional coefficient；Positive canopy for heliogreenhouse can take 1.0, can take 1.02 for cloudy canopy；
A2 wind-force additional coefficient；Relevant with wind speed, general wind speed is that 6.71m/s can take 1.0, and wind speed is that 15.65m/s can take 1.16, and centre takes mathematic interpolation；
The basic heat output (W) in Q1 greenhouse；
The Air Infiltration thermic load (W) in Q2 greenhouse；
The ground heat output (W) in Q3 greenhouse；
(2), the calculating of absorber volume:
When heat-supplying system design thermic load and for, return water temperature it has been determined that time, then for the hot water flow (circulating load) met required for total heat duties be:
G=3.6Q/ (T1-T2) C (2-2)
In formula: the heating total heat duties (W) in Q greenhouse；
T1 feed pipe temperature (DEG C)；Experimental data of the present invention shows to take 95 DEG C
T2 outlet pipe temperature (DEG C)；Experimental data of the present invention shows to take 60 DEG C
C specific heat of water, 4.1868 (J kg-1 DEG C-1)；
Parameters is substituted into (2-2) draw:
G=0.021129Q (3-3)
Assume fair weather in the winter time, absorber of the present invention can work 3:00 in afternoon from 9:00 in the morning, calculated according to 6 hours, in these 6 hours, the solar radiation heat that the space heating load in greenhouse is absorbed by absorber undertakes, and all the other deficiency of time parts are met by auxiliary thermal source。
So the hot water global cycle amount that the day hot water yield of absorber should be 6 hours is: V6=6*0.021129Q=0.1267Q
Prove through lot of experiments, the present invention at the overall efficiency of the thermal-arrest of Heating Period, heat accumulation and heat supply between 0.35-0.45, according to Conservative estimation, the relation between volume and the heating total heat duties in greenhouse of absorber:
The volume V absorber of absorber=0.1267Q/0.35=0.365Qm3 (3-3)
(3), the calculating of thermal isolation and heat storage water tank volume:
In sunny winter, for one side heliogreenhouse, in the regions of 6 hours of 9:00-in morning 3:00 in afternoon, what can be similar to thinks that temperature of shed is suitable for the growth promoter of plant, need not heating, produced by these 6 hours, hot water storage is in thermal isolation and heat storage water tank, for the heating of all the other time periods；Add the volume of the water of evacuation and anti-freezing at night, therefore,
The volume V=0.1267Q+0.365Q=0.4917Qm3 (4-4) of heat storing and heat preserving water tank
Take heat storing and heat preserving water tank volume V=0.5Qm3。
To build two-sided greenhouse installation heat-collection heat-supply system embodiment of the present invention, the invention will be further described below。
Embodiment 1
Two-sided greenhouse length is 60m, and sun canopy span is 8m, and cloudy canopy span is 4.5m, and sun canopy north wall body of wall height is 2.6 meters, and the ridge high altitude in greenhouse is 3.6m, and the spacing of greenhouse inner frame is 1.0m。Between the buffering in greenhouse, (management house) is of a size of 3.6*3.6 rice, is highly 3.8 meters between buffering, should reserve various hole, pre-buried various pipelines by drawing in advance during greenhouse construction。
As Figure 1 and Figure 4, between greenhouse buffering, (management house) 4 is located at warmhouse booth 5 side, and roofing adopts flat roof, and roof boarding adopts armoured concrete slab。When design, according to the total load head of the water etc. in the fresnel lens array 1 on concrete slab top, solar protection devices 3 and absorber 2, thickness and the arrangement of reinforcement of concrete slab should be calculated。During construction, it should reserved various pipeline holes and built-in fitting, after concrete slab construction, spray 60 millimeters thick polyurethane heat-insulation bed courses 8 and levelling。
As shown in Figure 1, Figure 2, Figure 4 shows, producing semicircular absorber 2 in advance, absorber 2 can adopt two component screw-sockets to connect, and reserves good cold water inlet and hot water outlet pipe, then absorber 2, its outer topcoating solar selective coat are installed on the polyurethane heat-insulation bed course 8 of roofing。Calculate the radius size of fresnel lens array 1 skeleton in advance, it is desirable to lens focus is positioned at absorber 2 surface, and focal length is the Fresnel Lenses distance to absorber 2 surface tangent。
As shown in Figure 1, Figure 2, Figure 4 shows, the active heat collector being made up of fresnel lens array 1, lens arra skeleton and absorber 2 is arranged between greenhouse buffering on (management house) deck 6, fresnel lens array 1 skeleton is mutually handed over by the light steel skeleton that semicircle is spherical and is welded into fixing rack, the present embodiment is adopted to the orthogonal grid of 500*500 millimeter。After device 2 to be absorbed installs, mounted array skeleton。Ironware welding or bolt that array backbone is directly pre-buried with on (management house) 4 roof between greenhouse buffering are connected, and Greenhouse building forms one。
As shown in Figure 1, Figure 2, Figure 4 shows, in the light steel skeleton grid that semicircle is spherical, inlaying multiple Fresnel Lenses, lens can be taked circular or square, can also according to erose grid and carry out customized or cut out, the present embodiment adopts the foursquare lens of 500*500 millimeter。
As shown in Figure 1, Figure 3, after installing active heat collector, solar protection devices 3 is installed。Solar protection devices 3 is arranged on outside fresnel lens array 1, wherein semicircle light steel skeleton radical is three, white ante-venna is connected with jump ring by draw-in groove with light steel skeleton, rotating with the diameter of fresnel lens array 1 for rotating axle, the mode of rotation can adopt manually or gear drives machine 7 to drive。
As shown in Figure 4, it is respectively mounted and connects the equipment such as assisted heating device, water circulating pump, electromagnetic valve, temperature controller and form loop。In native system, thermal isolation and heat storage water tank 9, temperature controller, water circulating pump electromagnetic valve are both placed between greenhouse buffering in (management house) 4, radiator in two-sided greenhouse the moon canopy adopts D125 light tube radiator, and distributing installation is in cloudy canopy, and its remaining hot water connecting tube adopts PE pipe。
After installing, debug system。
Embodiment of above is merely to illustrate the present invention, but not limitation of the present invention。Although the present invention being described in detail with reference to embodiment, it will be understood by those within the art that, technical scheme is carried out various combination, amendment or equivalent replacement, without departure from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of scope of the presently claimed invention。
Claims (10)
1. heating system one kind integrated with Greenhouse building, it is characterised in that this system includes: actively heat collector, thermal isolation and heat storage water tank, assisted heating device, solar protection devices, delivery pipeline, heat abstractor and temperature sensing control device；Actively heat collector is made up of fresnel lens array, lens arra skeleton and absorber；Actively heat collector is arranged on roof between greenhouse buffering, and Greenhouse building forms one；Thermal isolation and heat storage water tank is placed in greenhouse buffering, adopts stainless steel inner container, intermediate urethane insulation bed course, the additional color steel in outside；Assisted heating device is arranged in thermal isolation and heat storage water tank；Solar protection devices is become by semicircle light steel skeleton, sunshade curtain and drive train；Delivery pipeline connects thermal isolation and heat storage water tank and heat abstractor, and heat abstractor adopts the mode of pipe laying in temperature indoor location or soil；Temperature sensing controls device and is made up of temperature sensor, electromagnetic valve, temperature controller and water circulating pump, and electromagnetic valve is connected with temperature controller and water circulating pump。
2. the heating system integrated with Greenhouse building according to claim 1, it is characterized in that, described lens arra skeleton is to be formed fixing grid by the light steel skeleton that semicircle is spherical is interlaced, and the direct ironware pre-buried with on roof between greenhouse buffering of array backbone is connected。
3. the heating system integrated with Greenhouse building according to claim 2, it is characterized in that, described fresnel lens array is in the light steel skeleton grid that semicircle is spherical, inlay multiple Fresnel Lenses, lens focus is positioned at absorber surface, and focal length is the distance that Fresnel Lenses arrives absorber surface tangent line。
4. the heating system integrated with Greenhouse building according to claim 1, it is characterised in that described absorber is to adopt steel plate to be fabricated in hemispherical empty, outer topcoating solar selective coat；The external cold water inlet of absorber and hot water outlet pipe。
5. the heating system integrated with Greenhouse building according to claim 1, it is characterized in that, between described greenhouse buffering, its position is located at side, greenhouse, roofing adopts flat roof, roof boarding adopts armoured concrete slab, and actively heat collector is arranged on roof boarding, actively arranges polyurethane heat-insulation bed course between heat collector and roof boarding。
6. the heating system integrated with Greenhouse building according to claim 1, it is characterised in that additional layer steel plate, employing heat-storing material filling between two-layered steel plates again outside the inner bag of described thermal isolation and heat storage water tank。
7. the heating system integrated with Greenhouse building according to claim 1, it is characterised in that described assisted heating device is arranged in thermal isolation and heat storage water tank, adopts Electric heating；When the water temperature in thermal isolation and heat storage water tank is lower than certain limit value, it is possible to automatically turn on, it is used for ensureing round-the-clock hot water supply；When the water temperature in thermal isolation and heat storage water tank is higher than certain limit value, it is possible to be automatically switched off to save the energy；Described assisted heating device adopts manually opened and automatically turns on two ways。
8. the heating system integrated with Greenhouse building according to claim 1, it is characterized in that, described solar protection devices is arranged on outside active heat collector, semicircle light steel skeleton radical is three, sunshade curtain is connected with jump ring by draw-in groove with light steel skeleton, rotating with the diameter of active heat collector for rotating axle, the mode of rotation adopts manually or gear drives machine to drive。
9. the heating system integrated with Greenhouse building according to claim 1, it is characterized in that, described active heat collector outlet and thermal isolation and heat storage water tank arrange temperature sensor, when in heat collector, hot water temperature reaches the temperature set, temperature controller order electromagnetic valve starts, hot water is entered in thermal isolation and heat storage water tank, promote the water temperature in thermal isolation and heat storage water tank；When in heat collector, water temperature is lower than the temperature set, temperature controller order electromagnetic valve starts, and is entered by water in thermal isolation and heat storage water tank, it is achieved evacuation and anti-freezing。
10. the heating system integrated with Greenhouse building according to any one of claim 1-9, it is characterised in that when the described water level in thermal isolation and heat storage water tank reaches the upper limit position set, closed electromagnetic valve；When the temperature difference of the water in hot water temperature and thermal isolation and heat storage water tank in active heat collector reaches the upper limit set, water circulating pump starts, and promotes the water temperature in thermal isolation and heat storage water tank；When the temperature difference of the water in hot water temperature and thermal isolation and heat storage water tank in active heat collector reaches the lower limit set, water circulating pump quits work。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607103A (en) * | 2022-03-24 | 2022-06-10 | 重庆大学 | Water-saving and energy-saving method by utilizing roof |
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| JPS5922141B2 (en) * | 1977-12-26 | 1984-05-24 | 松下電器産業株式会社 | heating equipment |
| US4509503A (en) * | 1983-04-11 | 1985-04-09 | Young James E | Solar heating system |
| CN202587972U (en) * | 2012-06-01 | 2012-12-12 | 西北农林科技大学 | Phase-change heat accumulation circulating device suitable for sunlight greenhouse |
| CN204227716U (en) * | 2014-08-06 | 2015-03-25 | 宋亮 | Solar light-condensing and heat-collecting device |
| CN104864460A (en) * | 2015-04-29 | 2015-08-26 | 大连理工大学 | Rural active solar heat storage floor system |
| CN205536054U (en) * | 2016-03-18 | 2016-08-31 | 中国农业大学 | Heating system with greenhouse building integration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607103A (en) * | 2022-03-24 | 2022-06-10 | 重庆大学 | Water-saving and energy-saving method by utilizing roof |
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