CN102249356B - Hot water pure water coproduction device by solar energy - Google Patents
Hot water pure water coproduction device by solar energy Download PDFInfo
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- CN102249356B CN102249356B CN2011101156920A CN201110115692A CN102249356B CN 102249356 B CN102249356 B CN 102249356B CN 2011101156920 A CN2011101156920 A CN 2011101156920A CN 201110115692 A CN201110115692 A CN 201110115692A CN 102249356 B CN102249356 B CN 102249356B
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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
- 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
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Abstract
The invention discloses a hot water pure water coproduction device by solar energy, comprising an evacuated tube collector, a hot water tank, a cooling water tank, a condenser, a defrosting tray, a water pump, a water level sensor, a motor operated valve and a pipeline. The process for the device to prepare pure water comprises the following steps: the water tank of a solar energy water heater is under the high-temperature and high-moisture environment; damp air enters the condenser on the upper part by natural convection to generate pure water; after cooling water adsorbs latent heat of condensation, a temperature rises; and then, the cooling water serves as water heater make-up water to utilize the regenerative heat of steam latent heat of condensation. The pure water coproduction device has the advantages of simple structure and small assistant energy consumption, and is especially suitable for dispersed water supply for areas lacking in freshwater, such as islands, brackish water areas and the like, the purpose of hot water pure water coproduction is realized, and the problem of home drinking water is solved.
Description
One, technical field
The present invention relates to a kind of sun power and produce the pure water hot-water integration method of pure water, particularly a kind of hot water that utilizes solar water heater to produce to the air humidification dehumidification, realizes producing the device of pure water and hot water through natural convection.
Two, background technology
China's Freshwater resources are very deficient, and China has more than 3,800 ten thousand people to drink brackish water according to statistics, and the many places, coastal cities are in the serious water shortage state to the north of the Changjiang river, and water resource pollution also constitutes a threat to quality of drinking water, and purified drinking water becomes a kind of general choice.The method of producing pure water at present is main with reverse osmosis method, MSF, low-temperature multi-effect, and these methods are mainly the densely populated areas central water supply, and regional energy shortages such as rural area, island, supply water to disperse, and traditional sea water distiling plant benefit is lower.Present home-use pure water drinking machine is produced pure water through reverse osmosis membrane, and its subject matter is: reverse osmosis membrane efficient is lower, and the life-span is shorter; Need pre-treatments such as filtration, absorption, higher to requirements in water quality; Power consumption is higher, should not use in the deficient area of electric power, and developing a kind of small-sized less energy-consumption sea water distiling plant becomes the task of top priority.
Sun power is as a kind of renewable energy source of cleaning; Be widely used in industries such as hot water, generating, drying in recent years; Technology reaches its maturity, and heat capacity is greatly improved, except that satisfying domestic hot water's demand; Still there is certain surplus to use it for anything else, utilizes sun power to realize that the coproduction of hot water pure water becomes a kind of feasible water desalination treatment technology.
Existing multinomial both at home and abroad at present related patent U.S. Patent No. technology; As: a kind of solar water heater and water purification machine integrated apparatus, its patent No. are 200710304369.1; Solar water water purifior, its patent No. are 200920190332.5; Desalinize seawater technology, its patent No. of high-efficiency and energy-saving type solar energy is 200910200016.6; Large-sized solar hot water pure water device, its patent No. are 200820081644.8; One-piece type solar vacuum-tube water pure water device, its patent No. are 200820081642.9; A kind of method, its patent No. of utilizing solar water heater to produce pure water is 200810000548.0, and solar heater for purified water, its patent No. are 00101276.2, and a kind of solar seawater desalination and salt production device, its patent No. are 200920151175.7; Single utilization sun power desalinizes seawater or vacuum distillation apparatus and method, its patent No. of brackish water are 200910067653.0; Hybrid solar water desalination system, its patent No. are 200810226488.4, and solar energy high-temperature heat collection desalination water treatment technology, its patent No. are 200920216734.8, and solar spotlighting distilled water machine, its patent No. are 200910161290.0; Portable all-glass evacuated solar collector tube pressure-bearing seawater distilling desalinator, its patent No. are 201010216323.6, and apparatus of combined solar energy heat pump for desaltination of sea water, its patent No. are 200510015302.3 etc.
All there is certain deficiency in above technology, and wherein the part technology is a thermal source with high temperature optically focused, and the drawback of this method is that high-temperature scaling is difficult to solve, and system thermal efficiency is lower; The part technology is the basis with the membrane distillation, preferably resolve the low problem of producing water ratio, but the life-span of permeable membrane is shorter, and higher to water quality requirement; The part technology does not have the recycling of explanation to steam latent heat, has reduced the thermo-efficiency of system; The part technology adopts the mode of low-temperature multi-effect or MSF, and this mode is had relatively high expectations to the evaporator room negative pressure, and energy consumption is high, and complicated operation is not suitable for dispersion user and uses.
Three, summary of the invention
The objective of the invention is to design a kind of solar water heater hot water, pure water combination preparing device based on natural convection; Combined solar thermal hydrophone technology and air humidification dehumidification technology realize hot water and pure water supply, solve domestic consumer's tap water problem; Saves energy, the protection environment.
A kind of solar water pure water combination preparing device; Comprise vacuum tube collector, hot well tank, cooling water tank, condensing surface, drip tray, water circulating pump, water level sensor, motorized valve and pipeline etc.; In hot well tank and cooling water tank, be respectively equipped with high water level sensor and low water level sensor; Bottom at cooling water tank is provided with inlet channel, it is characterized in that the upper position in hot well tank is equipped with condensing surface, and the import of condensing surface is through the lower end of pipe connection to cooling water tank; The outlet of condensing surface is through the upper end of pipe connection to cooling water tank; Drip tray is equipped with in the bottom of condensing surface, and the bottom of drip tray is provided with thermal insulation layer, is provided with connecting tube in the bottom of hot well tank and cooling water tank.The high water level sensor of hot well tank is connected with the water monitor of hot well tank with low water level sensor, and the high water level sensor of cooling water tank is connected with the water monitor of cooling water tank with low water level sensor; On the inlet channel of cooling water tank motorized valve is housed, the water level sensor control of oil cooling water tank; On the connecting tube of hot well tank and cooling water tank motorized valve is housed, by the water level sensor control of hot well tank; The drip tray exterior bottom is provided with polyurethane insulation coating, and drip tray is slight inclination along its length, inclination angle 1～3 degree, and the low side of drip tray is provided with external DI; , cooling water tank is provided with water circulating pump from being connected to the pipeline loop of condenser inlet; The water level of cooling water tank and water level sensor are higher than the water level and the water level sensor of hot well tank.
The process that the present invention produces pure water is following: water is after the solar energy vacuum tube heating, and natural convection gets into hot well tank top; Hot well tank top water temperature is higher; And form hot and humid saturated moist air frictional belt at water surface place; Because there is the gradient difference of temperature and humidity in wet air in frictional belt and the hot well tank; Wet air constantly carries out the wet exchange of heat with the frictional belt in the hot well tank, thus the higher wet air of formation humiture, the humidification process of completion water tank inner air; Density of moist air behind the humidification reduces, and is on the rise in hot well tank, and wet air gets into the condensing surface on hot well tank top with the natural convection mode, and generates pure water in condenser surface cooling dehumidification; Density of moist air after the cooling dehumidification increases, and moves to hot well tank water surface place with natural convection, and carries out the wet exchange of heat with it, so moves in circles, and constantly produces pure water.
The latent heat of vaporization temperature that discharges when the inner recirculated water of condensing surface absorbs water vapor condensation among the present invention rises, and then gets into cooling water tank, and the cooling water tank water temperature rises gradually; After confessing hot water, the hot well tank water level inside descends, and water coolant gets into the make up water of hot well tank as water-heater, and heat is taken back in the water-heater, realizes effective utilization of vapor condenses latent heat.
Compared with prior art, the invention has the advantages that: hot water and pure water coproduction, condensing surface water outlet have realized effective utilization of vapor condenses latent heat as the make up water of water-heater, have improved thermo-efficiency; Concentration rate is low, and the tendency of fouling is little, does not need special blowdown; Evaporative process is the natural convection mode, and is simple in structure, and auxiliarypower consumption is few.The present invention utilizes solar water heater, has realized the coproduction of hot water pure water, is particularly suitable for being applied to the deficient geographic dispersion of fresh water such as island, brackish water area and supplies water, and solves a household drinking water difficult problem.
Four, description of drawings
Fig. 1 is a structural representation of the present invention, and Fig. 2 is a hot well tank cross-sectional view of the present invention.
Wherein: 1 is vacuum tube collector; 2 is hot well tank; 3 is condensing surface; 4 is drip tray; 5 is water circulating pump; 6 is cooling water tank; 7～8 is motorized valve; 9 is the hot well tank water monitor; 10 is the cooling water tank water monitor; 11 is the high-water measuring point of water level sensor in the hot well tank; 12 is the high-water measuring point of water level sensor in the cooling water tank; 13 is the low-water level measuring point of water level sensor in the hot well tank; 14 is the low-water level measuring point of water level sensor in the cooling water tank; 15 is DI; 16 is hot-water line; 17 is polyurethane insulation coating.
Five, embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Solar water pure water combination preparing device as shown in Figure 1 is made up of vacuum tube collector 1, hot well tank 2, condensing surface 3, drip tray 4, water circulating pump 5, cooling water tank 6, motorized valve 7～8, water monitor 9～10, water level sensor 11～12 and pipeline.Condensing surface 3 is installed in hot well tank 2 inside, and keeps the above spacing of 5cm with hot well tank 2 water level inside, and condensing surface is the spacing finned tube heat exchanger, and spacing of fin is 1.5～3cm; Drip tray 4 is installed in condensing surface 3 bottoms, and drip tray 4 is installed along the length direction slight inclination of hot well tank 2,1～3 ° at inclination angle, and the polyurethane foam heat insulating is carried out in the bottom surface of drip tray 4, and the pure water that drip tray 4 is collected is drawn hot well tank 2 by DI 15; Condensing surface 3 inlets link to each other with cooling water tank 6 bottoms, and cooling water tank 6 is installed in sustained height with hot well tank 2; Condensing surface 3 outlets link to each other with cooling water tank 6 tops, and water circulating pump 5 is installed in the cooling loop, and cooling water tank 6 well is incubated; Cooling water tank 6 inlets are installed motorized valve 8; Cooling water tank is connected through connecting tube with hot well tank, and connecting tube is provided with motorized valve 7; High water sensor 12 and low water level sensor 14 are installed in the cooling water tank, inner high water level sensor 11 and the low water level sensor 13 installed of hot well tank, high water level sensor 12 positions of cooling water tank exceed hot well tank high water level sensor 11 about 10～15cm; High water level sensor 11 is installed in the drip tray below, and the signal of high water level sensor 11,12 and low water level sensor 13,14 outputs is delivered to respectively in the water monitor 9,10, controls the motorized valve 7 and 8 of inlet separately respectively by water monitor 9 and 10.
As shown in Figure 1, the hot water pure water joint process in the present embodiment: feedwater gets into vacuum tube collector 1 through cooling water tank 6, motorized valve 8, and water is heat temperature raising in vacuum tube collector 1; Density descends; Rise to hot well tank 2 waters surface through natural convection, the wet exchange of heat, the wet air that formation temperature, humidity are all higher take place in the air in water that temperature is higher and the hot well tank 2; Wet air gets into condensing surface 3 and heat exchange with it through natural convection; The wet air temperature descends and dewfall takes place and generates pure water, and pure water is being collected by the drip tray that is installed in condensing surface 3 bottoms 4, and draws water-heater by DI; Descend through cooled wet air humiture, density increases, and constantly moves downward, and gets into hot well tank 2 bottoms and hot water the wet exchange of heat takes place, and so moves in circles, and constantly produces pure water.
As shown in Figure 1, the latent heat of condensation removal process in the present embodiment: the cold water of cooling water tank 6 bottoms is pumped in the condensing surface 3 by water circulating pump 5, and the latent heat of vaporization that water coolant discharges when in condensing surface 3, absorbing water vapor condensation gets into cooling water tank 6 tops then.Because the cooling water tank 6 inner thermal stratification phenomenons that form naturally are beneficial to the make up water of the water coolant that cooling water tank 6 upper temps are high slightly as hot well tank 2.
As shown in Figure 1; Hot well tank moisturizing process in the present embodiment: when system starts; Cooling water tank 6 is all anhydrous with hot well tank 2 inside, and water monitor 9 and 10 controls are opened motorized valve 7 and 8, cooling water tank 6 and hot well tank 2 whole UNICOMs; Feedwater constantly gets into cooling water tank 6, and gets in the hot well tank 2 through cooling water tank 6; When the water level in the hot well tank 2 is higher than the high-water measuring point of high water level sensor 11; High water level sensor 11 sends a signal to water monitor 9, and control motorized valve 7 cuts out, and hot well tank 2 is no longer intake; Cooling water tank 6 continues to add water simultaneously; During the high-water measuring point of high water level sensor 12, high water level sensor 12 sends a signal to water monitor 10 in water level is higher than cooling water tank 6, and control motorized valve 8 cuts out; When the hot water load; Hot well tank 2 water level inside descend; In water level drops to hot well tank 2 during the low-water level measuring point of low water level sensor 13; Low water level sensor 13 sends a signal to water monitor 9, opens motorized valve 7 by water monitor 9 controls, and the water coolant on cooling water tank 6 tops just can get into the make up water of hot well tank 2 as water-heater; After cooling water tank 6 water level inside are reduced to the low-water level measuring point of low water level sensor 14 in the cooling water tank 6, open motorized valve 8 by water monitor 10 controls, feedwater gets into cooling water tank 6, accomplishes the moisturizing process of system.Because water coolant that cooling water tank 6 upper strata temperature are higher is as the make up water of hot well tank 2, but the latent heat of emitting during the efficient recovery steam coagulation improves system thermal efficiency greatly.
As shown in Figure 2, the hot well tank structural representation in the present embodiment.Drip tray 4 is weldingly fixed on condensing surface 3 bottoms, 1～3 ° of drip tray 4 setting angle, and the low side of drip tray 4 links to each other with DI 15, and the bottom of drip tray 4 adds polyurethane insulation coating 17, polyurethane heat-insulation layer thickness 1cm, the distance of the drip tray 4 and the water surface is greater than 5cm; The high-water measuring point 7 and drip tray 4 vertical ranges of water level sensor are 5cm, and the low-water level measuring point 8 of water level sensor is installed in the above about 5cm place of water tank bottom.
Claims (1)
1. solar water pure water combination preparing device; Comprise vacuum tube collector, hot well tank, cooling water tank, condensing surface, drip tray, water circulating pump, water level sensor, motorized valve and pipeline etc.; In hot well tank and cooling water tank, be respectively equipped with high water level sensor and low water level sensor; Bottom at cooling water tank is provided with inlet channel, it is characterized in that the upper position in hot well tank is equipped with condensing surface, and the import of condensing surface is through the lower end of pipe connection to cooling water tank; The outlet of condensing surface is through the upper end of pipe connection to cooling water tank; Drip tray is equipped with in the bottom of condensing surface, and the bottom of drip tray is provided with thermal insulation layer, is provided with connecting tube in the bottom of hot well tank and cooling water tank; The high water level sensor of hot well tank is connected with the water monitor of hot well tank with low water level sensor, and the high water level sensor of cooling water tank is connected with the water monitor of cooling water tank with low water level sensor; On the inlet channel of cooling water tank motorized valve is housed, the water level sensor control of oil cooling water tank; On the connecting tube of hot well tank and cooling water tank motorized valve is housed, by the water level sensor control of hot well tank; The drip tray exterior bottom is provided with polyurethane insulation coating, and drip tray is slight inclination along its length, inclination angle 1 ~ 3 degree, and the low side of drip tray is provided with external DI; , cooling water tank is provided with water circulating pump from being connected to the pipeline loop of condenser inlet; The water level of cooling water tank and water level sensor are higher than the water level and the water level sensor of hot well tank.
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| CN2011101156920A CN102249356B (en) | 2011-05-05 | 2011-05-05 | Hot water pure water coproduction device by solar energy |
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| CN2011101156920A CN102249356B (en) | 2011-05-05 | 2011-05-05 | Hot water pure water coproduction device by solar energy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102718275B (en) * | 2012-06-26 | 2013-06-19 | 徐军 | Double-barrel layered solar seawater desalting device |
| CN104236141A (en) * | 2014-09-30 | 2014-12-24 | 广西大学 | Distilled water recycling device for solar water heating tank |
| CN105858763B (en) * | 2016-04-08 | 2019-04-09 | 哈尔滨工业大学 | Purify heating integral device |
| CN108619914B (en) * | 2017-03-15 | 2020-09-15 | 中国石油化工股份有限公司 | Membrane distillation system using solar heat pump |
| CN108483539B (en) * | 2018-03-26 | 2023-09-22 | 宁夏大学 | Solar water treatment device with intelligent water level control function |
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| CN1058470C (en) * | 1994-07-12 | 2000-11-15 | 北京市西城区新开通用试验厂 | Combined solar apparatus for seawater desalination and heat supply |
| CN101134605A (en) * | 2006-08-29 | 2008-03-05 | 北京索能技术有限公司 | Temperature-differential sea-water distillator |
| CN201259341Y (en) * | 2008-09-03 | 2009-06-17 | 红河学院 | Large-sized solar water heating and water purifying device |
| JP4693916B2 (en) * | 2009-05-08 | 2011-06-01 | 佑吉 堀岡 | Anhydrous manure treatment method and anhydrous manure treatment toilet system |
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Address after: 250061, No. ten, No. 17923, Lixia District, Ji'nan City, Shandong Province Co-patentee after: SHANDONG SHENHUA SHANDA ENERGY ENVIRONMENTAL Co.,Ltd. Patentee after: SHANDONG University Address before: 250061, No. ten, No. 17923, Lixia District, Ji'nan City, Shandong Province Co-patentee before: SHANDONG SHANDONG UNIVERSITY ENERGY ENVIRONMENT Co.,Ltd. Patentee before: SHANDONG University |
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Address after: 250061, No. ten, No. 17923, Lixia District, Ji'nan City, Shandong Province Patentee after: SHANDONG University Patentee after: Guoneng (Shandong) energy environment Co.,Ltd. Address before: 250061, No. ten, No. 17923, Lixia District, Ji'nan City, Shandong Province Patentee before: SHANDONG University Patentee before: SHANDONG SHENHUA SHANDA ENERGY ENVIRONMENTAL Co.,Ltd. |
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