CN103090347B - Steam generating device adopting compound parabolic concentrator (CPC) solar collector - Google Patents
Steam generating device adopting compound parabolic concentrator (CPC) solar collector Download PDFInfo
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- CN103090347B CN103090347B CN201310042121.8A CN201310042121A CN103090347B CN 103090347 B CN103090347 B CN 103090347B CN 201310042121 A CN201310042121 A CN 201310042121A CN 103090347 B CN103090347 B CN 103090347B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a steam generating device adopting a compound parabolic concentrator (CPC) solar collector. The steam generating device comprises a collector group and a steam generator. A medium input pipe opening and a medium output pipe opening of the collector are respectively connected with an input connecting box and an output connecting box pipeline. An electric heater is arranged in an energy storage box. Liquid pumps are respectively arranged on a medium input main pipeline and a medium input pipeline of a heat collection medium heat exchanger. The heat exchanger is a spiral coil pipe heat exchanger. A collecting lens of the collector is a rear surface mirror, and a light reflective membrane layer and a protective membrane layer are plated on the rear surface of a glass base and are compounded with the glass base into a whole in a bonding mode. The steam generating device is mainly characterized in that glass cover plates are respectively arranged on a groove opening of the groove type collecting lens and opening ends on two sides, and has the advantages of being reasonable in structure configuration, high in light reflective rate of the collecting lens, good in heat utilization effects, long in service life and the like.
Description
Technical field
The present invention relates to a kind of steam raising plant of the CPC of employing solar concentrating collector, belong to solar energy utilization technique device field.
Background technology
CPC of the present invention, is the abbreviation of English Compound Parabolic Concentrator, and the meaning is compound parabolic concentrator collector.It is the unique a kind of high-effective concentration heat collector that does not need the Continuous Tracking sun in concentrating collector.In 1 year, only need to adjust for 2 ~ 4 times the inclination angle of heat collector, just can obtain maximum light harvesting ratio.
And described steam raising plant adopts CPC solar concentrating collector exactly, heat energy is provided and produces the steam raising plant of steam.
Described this steam raising plant, Ke Gong industrial and mining enterprises, hotel and outdoor bathing place and residential quarter etc. such as decatize food (meal, steamed bun and dish), boil water, take a shower, for many-sides such as warm refrigeration, apply, also can be the light industry such as textile industry, chemical industry, papermaking and timber processing, the steam of Chinese herbal medicine processing bakes and the aspect such as processing medium and agricultural booth heating, and thermal source steam is provided.Due to this steam generator, there is the features such as energy Sustainable Exploitation uses, and low-carbon environment-friendly and production of steam cost are low, and cause the great attention of Technological Economy circle.
At present, though there are part universities and colleges, R&D institution and business entity, propose to adopt the steam raising plant of solar concentrating collector as middle temperature (100 ~ 200 ℃) steam raising plant, be used for steamed rice, the imagination boiling water, and did the trial of model experiment, but eventually due to the compound parabolic face condenser of concentrating collector, although adopted formed glass steel substrate surface pad pasting mode, but its reflecting rate unsatisfactory (≤80%) and its practical value is not high, and because the weatherability of formed glass base steel is poor, process is hard on, preparation cost is high and service life is short (general≤2.5 years), and society is difficult to accept.
Chinese patent 200410064610.4 disclosed " composite parabolic light focusing type solar rice cooker device ", adopt moulding surface of aluminum plate pottery treatment technology, the condenser of prepared solar concentrating collector (speculum), successfully improved reflecting rate (80 ~ 85%), and 12 kilowatts of CPC solar rice cooker devices (boiler) have been developed in concrete enforcement.At solar irradiation>=900W/m
2under condition, within one day 6 ~ 7 hours, can steam twice rice (steamed bun).Each 50Kg.For adopting the extensive use of the solar rice cooker device of solar concentrating collector, opened up a new road, demoncal ration case is provided.
Yet, take a broad view of described patent (application) technology, still exist many structural deficiencies, select its main having: the one, the reflecting rate of its condenser (front surface mirror) is still lower, so that its solar thermal utilization rate is not high; The 2nd, because its condenser (reflective mirror) is front surface mirror, and be laid in the reflective film of condenser front surface, face nature adverse circumstances directly, this is not only extremely easily destroyed and cause the decline of reflecting rate, and its normal useful life is also directly had a strong impact on; The 3rd, in the thermal-arrest media flow loop of its total system, the delivery outlet and the input port that are located at the thermal-arrest metal clad pipe that is U-shaped structure in glass tube with vacuum of heat collector, both are directly connected with thermal-arrest medium input house steward pipeline with thermal-arrest medium delivery trunk respectively, this can increase the resistance of medium output and the medium input of heat collector undoubtedly, but also can form the turbulent flow of thermal-arrest medium, so that the operation of thermal-arrest medium circulation has some setbacks, and affects the Heat-collecting effect of heat collector and the heat transfer effect of thermal-arrest media heat exchanger; Especially not enough is the configuration deficiency of circulating pump, also can affect Heat-collecting effect and heat transfer effect, so that steam generator steam production is undesirable; The 4th, although it is provided with medium storage tank in media flow loop, but the function that its storage tank is undertaken is very simple, especially do not possess electric heating function, thereby cannot be competent at the work of steaming at rainy weather or night, and make troubles to application entity of the present invention; The 5th, although its overall structure can complete the work of steaming, it lacks automaton, thereby the execute-in-place trouble that seems very.
Summary of the invention
The object of the present invention is to provide a kind of system configuration reasonable, the condenser reflecting rate of heat collector is high, Heat-collecting effect is good, a kind of steam raising plant that adopts CPC solar concentrating collector of long service life, overcome the deficiency of prior art, for the extensive use of solar thermal utilization at people's sphere of life and workers and peasants' production field, provide equipment support.
The present invention realizes the technical though of its object, for the existing many deficiencies of prior art, carry out technological improvement: the one, by the medium input mouth of pipe of the collector metal pipe of heat collector and the medium output mouth of pipe, be connected with company's case (liquid storage voltage stabilizing bag) with larger volume respectively, and then be connected with medium input house steward pipeline with heat collector group's medium delivery trunk respectively by connecting case, thereby effectively reduce the resistance that thermal-arrest medium flowed into and flowed out the collector metal pipe of heat collector, cause thermal-arrest medium in loop, to move circulation smooth and easy; The 2nd, electric heater is set in energy-storage box, change its configuration in thermal-arrest medium loop, round-the-clock with vapour entity to adapt to, to use continuously over a long time vapour needs simultaneously; The 3rd, on the thermal-arrest medium intake line of steam generator, increase by 1 liquid pump, effectively to strengthen the motion-promotion force of thermal-arrest medium in its steam generator circuits, improve the heat transfer effect of heat exchanger; The 4th, the condenser of heat collector is improved to back surface mirror by front surface mirror, in plated surface cloth reflexed light film and protective film thereafter, and the rear surface of condenser is integral by adhesive linkage and substrate glass compound sticking, thereby make the reflective film of condenser, be arranged between laminated glass, effectively avoid the injury of natural environment to reflective film, further improve and keep the reflecting rate of condenser; The 5th, at notch and the arranged on left and right sides openend of the condenser that is U-shaped structure of heat collector, the cover-plate glass that is coated with sunshine high antireflection film layer and automatically cleaning rete is set respectively, to reduce the heat radiation in heat collector slot light collection mirror groove, further protect the safety of condenser; The 6th, on the basis of implementing in the above technical measures, increase automaton, to Related Work link of the present invention, implement automatically to control, thereby realize object of the present invention.
Based on the above technical though, the technical scheme that the present invention realizes its object is:
A steam raising plant that adopts CPC solar concentrating collector, it comprises: the solar concentrating collector spaced apart that has CPC slot light collection mirror by several is arranged the heat collector group who forms, and has the steam generator of thermal-arrest media heat exchanger; The thermal-arrest medium input mouth of pipe that is located at the collector metal pipe that is U-shaped structure in glass tube with vacuum of all solar concentrating collectors of described heat collector group and the thermal-arrest medium output mouth of pipe thereof, be connected with thermal-arrest medium delivery trunk pipeline with heat collector group's thermal-arrest medium input house steward respectively; By thermal-arrest media heat exchanger, the water being present in steam generator casing is heated, and then generating steam; In thermal-arrest medium loop, be provided with energy-storage box and the first liquid pump, and its:
A, the thermal-arrest medium input mouth of pipe of described solar concentrating collector and the thermal-arrest medium output mouth of pipe thereof, be by input pipe, to connect case respectively and efferent duct connects case, and be connected with thermal-arrest medium delivery trunk pipeline with thermal-arrest medium input house steward respectively;
B, described energy-storage box is provided with electric heater; Described energy-storage box is arranged in the rear of steam generator; Described heat collector group's thermal-arrest medium delivery trunk and thermal-arrest medium input house steward thereof, import respectively in energy-storage box, and the outlet of thermal-arrest medium delivery trunk is positioned at the top of energy-storage box, thermal-arrest medium input house steward's entrance, be positioned at the bottom of energy-storage box, thereby form heat collector group's the large loop of thermal-arrest medium; And the thermal-arrest medium input pipe of the thermal-arrest media heat exchanger of steam generator, and thermal-arrest medium efferent duct, introduce respectively in energy-storage box, and the entrance of thermal-arrest medium input pipe is positioned at the top of energy-storage box, the outlet of thermal-arrest medium efferent duct, be positioned at the bottom of energy-storage box, thereby form the thermal-arrest medium minor loop of steam generator;
C, also comprises the second liquid pump (circulating pump); Described the first liquid pump is arranged on heat collector group's the thermal-arrest medium input house steward pipeline of contiguous energy-storage box, and the second liquid pump is arranged on the thermal-arrest medium input pipe pipeline of thermal-arrest media heat exchanger of steam generator; By the first liquid pump, make thermal-arrest medium shuttling movement in large loop of heat collector group, and by the second liquid pump, make thermal-arrest medium shuttling movement in minor loop of steam generator;
D, described thermal-arrest media heat exchanger, is spiral coil heat exchanger, and its thermal-arrest medium input port is in the centre of spiral coil, and its thermal-arrest medium delivery outlet is in the outermost of spiral coil, and be connected with thermal-arrest medium efferent duct pipeline with thermal-arrest medium input pipe respectively; Thereby form spiral coil shell-side boiling heat transfer; And described thermal-arrest media heat exchanger is at least 1, when thermal-arrest media heat exchanger has when a plurality of, a plurality of thermal-arrest media heat exchangers are evenly arranged in steam generator casing, and by pipe joint, are connected with thermal-arrest medium efferent duct branch line with thermal-arrest medium input pipe respectively;
E, the CPC slot light collection mirror of described solar concentrating collector, is arranged by bilateral symmetry, be connected and form the slot type surface mirror that is U-shaped structure, and substrate glass forms by involute section with parabolic segment transition; Described surface mirror is back surface mirror, and in the rear surface of surface mirror glass-based, plating is furnished with reflexed light film and protective film successively from the inside to the outside; The rear surface of described surface mirror, is integral and is formed CPC slot light collection mirror by adhesive layer and substrate glass compound sticking;
F, also comprises and is closely contacted on respectively the notch end of described CPC slot light collection mirror and the notch cover-plate glass of both-side opening end and side glass cover-plate, by notch cover-plate glass and both sides side glass cover-plate, makes to be the CPC slot light collection mirror of U-shaped structure, is full closeding state.
By above given technical scheme, in conjunction with the present invention, realize the technical though of its object and can understand, the present invention has realized the object of its required realization.
Consideration based on facilitating described Yong Qi entity long-time continuous with vapour, the present invention also comprises the automaton with automatic controller, described automaton, comprise: automatic controller, be located at the first magnetic valve of heat collector group's thermal-arrest medium delivery trunk downstream portion, be located at the first temperature sensor in energy-storage box, be located at the second temperature sensor in steam generator, be located at the second magnetic valve on steam generator and city public water water source attaching pipeline, be located at the level sensor in steam generator casing, be located at the 3rd magnetic valve on the thermal-arrest medium efferent duct pipeline of thermal-arrest media heat exchanger and be located at the flow sensor on the steam output pipe road on steam generator casing top, described the first magnetic valve, the first temperature sensor, the second temperature sensor, the second magnetic valve, level sensor, the 3rd magnetic valve, flow sensor, and the first liquid pump and the second liquid pump, be all electrically connected to automatic controller, accepts automatic controller and control, when whole device is started working, by automatic controller, drive the first liquid pump work and open the first magnetic valve, order is present in the thermal-arrest medium motion in system and forms loop, accepts solar energy heating, when the thermal-arrest medium of energy-storage box reaches design temperature, the first temperature sensor passes through automatic controller, drive the second liquid pump to start working, and open the 3rd magnetic valve, make thermal-arrest medium in energy-storage box enter the thermal-arrest media heat exchanger of steam generator and form loop, to being present in the water heating in steam generator casing, and when energy storage the temperature inside the box is during lower than design temperature, by the first temperature sensor, by automatic controller, drive electric heater to work, thermal-arrest dielectric heating in energy-storage box is produced to steam, and when energy storage the temperature inside the box reaches design temperature, electric heater quits work and no longer heats, when the water in being located at steam generator casing reaches design temperature, the second temperature sensor sends early warning signal by automatic controller, informs that people can implement with vapour, when the water level of steam generator drops to minimum critical groundwater table, by level sensor, by automatic controller, open the second magnetic valve, give the moisturizing of steam generator casing, and when in steam generator, water level rises to the highest critical groundwater table,, by level sensor, by automatic controller, close the second magnetic valve and stop to the moisturizing of steam generator casing, when gas utilization unit stops using vapour, by flow sensor, by automatic controller, close the 3rd electromagnetism and the second liquid pump, stop thermal-arrest medium being provided and stopping steaming to thermal-arrest media heat exchanger.The object of this technical scheme is convenient application and saves recruitment.
In technique scheme, the present invention also advocates, the caliber of described thermal-arrest media heat exchanger is within the scope of 10 ~ 12mm, and the spacing of adjacent 2 tube and tube is not less than 4mm, and its spiral number of turns is within the scope of 10 ~ 15 circles.The object of this technical scheme is obviously, shell-side by thermal-arrest media heat exchanger seethes with excitement, effectively improve steam production, certainly be not limited to this, also can adopt and be similar to the heat exchanger of cylindrical spring or pagoda spring structure and the material of spiral coil is copper pipe or the aluminum pipe with high performance-price ratio.The number of turns of described spiral coil (being its length) is unsuitable long, and long not only heat transfer effect is undesirable on the contrary, but also can affect its scope that takes up room, and manufacturing cost also can increase.
In technique scheme, the present invention also advocates that described reflexed light film is silver-colored reflexed light film, and described protective film is Cu protective film layer.Certainly be not limited to this, described reflexed light film can be also mercury reflexed light film, and described protective film can be also aluminium protective film.
In technique scheme, the present invention also advocates, the outer surface of described notch cover-plate glass and notch both sides side glass cover-plate all from the inside to the outside successively plating be furnished with sunshine high antireflection film layer and automatically cleaning rete, and all plate and be furnished with sunshine high antireflection film at both inner surface.Wherein, described cover-plate glass and both sides side plate glass, suggestion adopts the tempering simple glass of thickness within the scope of 3 ~ 5mm and described sunshine high antireflection film layer is SiO
2rete, and described automatically cleaning rete is TiO
2rete.But be not limited to this.
In technique scheme, the present invention also advocates, in the troop downstream portion of thermal medium delivery trunk pipeline of heat collector, is also provided with liquid-gas separator.Due to the existence of liquid-steam separator, can purify the inevitable gas existing in thermal-arrest medium (conduction oil or low-melting-point metal salting liquid), and effectively improve Heat-collecting effect and heat transfer effect.If necessary, this liquid-gas separator can be on the pipeline of large loop, and a minute section is established several more.And described liquid-gas separator is the product that market can be purchased.
In technique scheme, the present invention also advocates, the casing of described steam generator is cylindric, and its diameter aspect ratio is within the scope of 2 ~ 2.5:1.The object of this technical scheme, is effectively to expand the area that steams (steam interface) of steam generator to reduce the water capacity in its casing, effectively to improve the heat utilization ratio of its steam production and thermal-arrest medium, reaches the object of efficiently steaming.
After technique scheme is implemented in full, rationally, the reflecting rate of heat collector condenser is high for the configuration of structure that the present invention has, and thermal utilization effect is good, and automaticity is high, and the feature such as long service life, is apparent.
Accompanying drawing explanation
Fig. 1 is the plane figure schematic diagram of a kind of specific embodiment of the present invention;
Fig. 2 is the structural upright schematic diagram of CPC solar concentrating collector 1-1 as shown in Figure 1;
Fig. 3 is the A portion enlarged drawing of Fig. 2;
Fig. 4 is the structural representation of CPC condenser 1-1-1 as shown in Figure 2;
Fig. 5 is the B portion enlarged drawing of Fig. 4;
Fig. 6 is that the master of thermal-arrest media heat exchanger 2-1 as shown in Figure 1 looks schematic diagram;
Fig. 7 is the structural representation of cover-plate glass 114 and side glass cover-plate 115 as shown in Figure 2; A shown in figure is sunshine high antireflection film layer, and b is automatically cleaning rete;
Fig. 8 is the schematic diagram of microscope base 1-1-3 as shown in Figure 3; Wherein Fig. 8 a is front view, and Fig. 8 b is the C-C cutaway view of Fig. 8 a.
The specific embodiment
Below contrast accompanying drawing, by the description of the specific embodiment, the invention will be further described.
One of specific embodiment, please join and read accompanying drawing 1 ~ 8.
A kind of steam raising plant that adopts CPC solar concentrating collector, the solar concentrating collector 1-1 spaced apart that has CPC slot light collection mirror 1-1-1 by several is arranged the heat collector group 1 who forms, and has the steam generator 2 of thermal-arrest media heat exchanger 2-1; The thermal-arrest medium input mouth of pipe 1-1-2-1 that is located at the thermal conductive metal pipe that is U-shaped structure in glass tube with vacuum 1-4 of all solar concentrating collector 1-1 of described heat collector group 1 and thermal-arrest medium output mouth of pipe 1-1-2-2 thereof, be connected with thermal-arrest medium delivery trunk 1-3 pipeline with heat collector group 1 thermal-arrest medium input house steward 1-2 respectively; By thermal-arrest media heat exchanger 2-1, the water being present in steam generator 2 casings is heated, and then generating steam; In thermal-arrest medium loop, be provided with energy-storage box 3 and the first liquid pump 4,
And its:
A, the thermal-arrest medium input mouth of pipe 1-1-2-1 of described solar concentrating collector 1-1 and thermal-arrest medium output mouth of pipe 1-1-2-2 thereof, by input pipe, to connect case 1-1-3 respectively and efferent duct connects case 1-1-4, and be connected with thermal-arrest medium delivery trunk 1-3 pipeline with thermal-arrest medium input house steward 1-2 respectively;
B, described energy-storage box 3 is provided with electric heater 6; Described energy-storage box 3 is arranged in the rear of steam generator 2; Described heat collector group's 1 thermal-arrest medium delivery trunk 1-3 and thermal-arrest medium input house steward 1-2 thereof, import respectively in energy-storage box 3, and the outlet of thermal-arrest medium delivery trunk 1-3 is positioned at the top of energy-storage box 3, the entrance of thermal-arrest medium input house steward 1-2, be positioned at the bottom of energy-storage box 3, thereby form heat collector group 1 the large loop of thermal-arrest medium; And the thermal-arrest medium input pipe 2-1-1 of the thermal-arrest media heat exchanger 2-1 of steam generator 2, and thermal-arrest medium efferent duct 2-1-2, introduce respectively in energy-storage box 3, and the entrance of thermal-arrest medium input pipe 2-1-1 is positioned at the top of energy-storage box 3, the outlet of thermal-arrest medium efferent duct 2-1-2, be positioned at the bottom of energy-storage box 3, thereby form the thermal-arrest medium minor loop of steam generator 2;
C, also comprises the second liquid pump 5; Described the first liquid pump 4 is arranged on heat collector group 1 the thermal-arrest medium input house steward 1-2 pipeline of contiguous energy-storage box 3, and the second liquid pump 5 is arranged on the thermal-arrest medium input pipe 2-1-1 pipeline of thermal-arrest media heat exchanger 2-1 of steam generator 2; By the first liquid pump 4, make thermal-arrest medium shuttling movement in large loop of heat collector group 1, and by the second liquid pump 5, make thermal-arrest medium shuttling movement in minor loop of steam generator 2;
D, described thermal-arrest media heat exchanger 2-1, that its line style is the thermal-arrest media heat exchanger of spiral of Archimedes, and its thermal-arrest medium input port 2-1-1-1 is in the centre of spiral coil, and its thermal-arrest medium delivery outlet 2-1-1-2, be in the outermost of spiral coil, and be connected with thermal-arrest medium efferent duct 2-1-2 pipeline with thermal-arrest medium input pipe 2-1-1 respectively; Thereby form spiral coil shell-side boiling heat transfer; And described thermal-arrest media heat exchanger 2-1 is at least 1, when thermal-arrest media heat exchanger 2-1 has when a plurality of, a plurality of thermal-arrest media heat exchanger 2-1 are in steam generator 2 casings that uniform plane is arranged or layering is evenly arranged, and by pipe joint, are connected with thermal-arrest medium efferent duct 2-1-2 branch line with thermal-arrest medium input pipe 2-1-1 respectively;
E, the CPC slot light collection mirror 1-1-1 of described solar concentrating collector 1-1, is arranged by bilateral symmetry, be connected and form the slot type surface mirror 111 that is U-shaped structure, and substrate glass 112 forms by involute section 1-1-1-1 with parabolic segment 1-1-1-2 transition; Described surface mirror 111 is back surface mirrors, and in the rear surface of surface mirror 111 glass-based 1-1-1-4, plating is furnished with reflexed light film 111-1 and protective film 111-2 successively from the inside to the outside; The rear surface of described surface mirror 111, is integral and is formed CPC slot light collection mirror 1-1-1 by adhesive layer 1-1-1-3 and substrate glass 112 compound stickings;
F, also comprise and be closely contacted on respectively the notch end of described CPC slot light collection mirror 1-1-1 and cover-plate glass 114 and the side glass cover-plate 115 of both-side opening end, by notch cover-plate glass 114 and both sides side glass cover-plate 115, make to be the CPC slot light collection mirror of U-shaped structure, be full closeding state.
And the caliber of described spiral tube exchanger 2-1 is within the scope of 10 ~ 12mm, the spacing of adjacent 2 tube and tube is not less than 4mm, and its spiral number of turns is within the scope of 10 ~ 15 circles.
And described reflexed light film 111-1 is silver-colored reflexed light film, described protective film 111-2 is Cu protective film layer.
And the outer surface of described notch cover-plate glass 114 and notch both sides side glass cover-plate 115 all from the inside to the outside successively plating be furnished with sunshine high antireflection film layer and automatically cleaning rete, and all plate and be furnished with sunshine high antireflection film at both inner surface.
And in the downstream portion of heat collector group 1 thermal-arrest medium delivery trunk 1-3 pipeline, be also provided with liquid-gas separator 8.
And the casing of described steam generator 2 is cylindric, and its diameter aspect ratio is within the scope of 2 ~ 2.5:1.
And at some position in the heat-conducting medium loop of its whole system, heat-conducting medium delivery trunk pipeline 1-3 for example, the positions such as casing of energy-storage box 3 and steam generator 2, are all also provided with release of pressure safety valve.
One of above specific embodiment is described, is a kind of manually-operated the present invention.
Two of the specific embodiment, as shown in accompanying drawing 1 ~ 8.
A kind of steam raising plant that adopts CPC solar concentrating collector, comprise the automaton 7 with automatic controller, automaton 7 described in described automaton 7, comprise: automatic controller 7-1, be located at the first magnetic valve 7-2 of heat collector group 1 thermal-arrest medium delivery trunk 1-3 downstream portion, be located at the first temperature sensor 7-3 in energy-storage box 3, be located at the second temperature sensor 7-4 in steam generator 2, be located at the second magnetic valve 7-5 on steam generator 2 and city public water water source attaching pipeline, be located at the level sensor 7-6 in steam generator 2 casings, be located at the 3rd magnetic valve 7-7 on the thermal-arrest medium efferent duct 2-1-2 pipeline of thermal-arrest media heat exchanger 2-1 and be located at the flow sensor 7-8 on the steam output pipe road 2-3 on steam generator 2 casings tops, described the first magnetic valve 7-2, the first temperature sensor 7-3, the second temperature sensor 7-4, the second magnetic valve 7-5, level sensor 7-6, the 3rd magnetic valve 7-7, flow sensor 7-8, and first liquid pump 4 and the second liquid pump 7, be all electrically connected to automatic controller 7-1 and accept automatic controller 7-1 and control, when whole device is started working, by automatic controller 7-1, drive the first liquid pump 4 to work and open the first magnetic valve 7-2, order is present in the thermal-arrest medium motion in system and forms loop, accepts solar energy heating, when the thermal-arrest medium of energy-storage box 3 reaches 105 ℃, the first temperature sensor 7-3, by automatic controller 7-1, drive the second liquid pump 7 to start working, make the interior thermal-arrest medium of energy-storage box 3 enter the thermal-arrest media heat exchanger 2-1 of steam generator 2 and form loop, the water heating being present in steam generator 2 casings is produced to steam, and when the interior temperature of energy-storage box 3 is during lower than 80 ℃, by the first temperature sensor 7-3, by automatic controller 7-1, drive electric heater 6 work, to the thermal-arrest dielectric heating in energy-storage box 3, and when the interior temperature of energy-storage box 3 reaches 105 ℃, electric heater 6 quits work and no longer heats, when the water within being present in steam generator 2 casings reaches 105 ℃, the second temperature sensor 7-4 sends early warning signal by automatic controller 7-1, informs that people can implement with vapour, when the water level of steam generator 2 drops to minimum critical groundwater table, by level sensor 7-6, by automatic controller 7-1, open the second magnetic valve 7-5, give steam generator 2 casing moisturizings, and when the interior water level of steam generator 2 rises to the highest critical groundwater table,, by level sensor 7-6, by automatic controller 7-1, close the second magnetic valve 7-5 and stop to steam generator 2 casing moisturizings, when gas utilization unit stops using vapour, by flow sensor 7-8, by automatic controller 7-1, close the 3rd electromagnetism 7-7, stop thermal-arrest medium being provided and stopping steaming to thermal-arrest media heat exchanger 2-1.In addition, other is all as one of specific embodiment.
The above specific embodiment two described is a kind of the present invention with automatic control function.
And the version of solar concentrating collector 1-1 of the present invention, as shown in Figure 3.It has the glass tube with vacuum 1-1-2 of the collector metal medium tube 1-1-2-1 that is U-shaped structure being fixed by metal fin, the medium of its thermal-arrest medium tube enters, outlet 1-1-2-1, 1-1-2-2, all stretch outside glass tube with vacuum 1-1-2, the two ends of condenser 1-1-1, be inlaid in respectively Precision Aluminum foundry goods left, in the first embedding slot 1-1-3-1 of right microscope base 1-1-3, and be located at the both sides side cover plate 115 of condenser 1-1-1 both-side opening end, be inlaid in the second embedding slot 1-1-3-2 of microscope base 1-1-3, left, right microscope base 1-1-3 bottom is connected with connector (triangular steel) 1-1-4 left and right end respectively, left and right base 1-1-5 is connected with connector 1-1-4 left and right end respectively, the two ends of glass tube with vacuum 1-1-2, to be axis hole equipped with the axle sleeve of left and right support member 1-1-6 respectively, the axle sleeve of base 1-1-5 is sleeved on the axle sleeve of support member 1-1-6, the axle sleeve of base 1-1-5 is provided with for adjusting the screw 1-1-7 at condenser 1-1-1 inclination angle.
The specific constructive form of described solar concentrating collector 1-1, asks for an interview the application documents of " in temperature solar heat collector " of being applied for by the applicant and the same applying date.
The present invention is located at the steam output pipe road 2-3 on steam generator 2 casing tops, by a plurality of output arms, respectively with cooking food (meal, steamed bun, dish) case, (bath water) device boils water, refrigeration air conditioner, heating device, steam curer is connected with pipelines such as vapour with manufacturing industry processing medium bath and agricultural booth, to supply with required steam.
And several solar concentrating collectors 1-1 of described heat collector group 1 is queue square formation to arrange, effectively to save floor space.
A thermal-arrest medium input house steward 1-2 for the described heat collector 1 of exemplary embodiments, and thermal-arrest medium delivery trunk 1-3 all adopts Φ 150mm pipe, and described input pipe connects case 1-1-3 and efferent duct connects case 1-1-4, all adopts Φ 100mm pipe; And when adopt 2 the above connect case 1-1-3, during 1-1-4 series connection, adopt 100mm cutting ferrule to connect;
And slot opening of slot light collection mirror 1-1-1 of solar concentrating collector 1-1 is 400mm described in it, flute length is 1700mm, and groove depth is 420mm, and solar concentrating collector 1-1 is East and West direction layout, 8 of every rows, 40 heat collectors of totally 5 rows; The notch light-receiving area of each solar concentrating collector 1-1 is 0.68m
2, the notch light-receiving area of 40 solar concentrating collector 1-1 amounts to 27.2m
2.
Experimental result demonstration, described exemplary embodiments is at the total irradiation>=800w/m of sunshine
2situation under, the Medium Oil temperature that enters heat exchanger 2-1, generally 110 ℃ of left and right, the medium temperature of thermal-arrest media heat exchanger 2-1 outlet is within the scope of 90 ~ 100 ℃, vapor (steam) temperature is 102 ℃ of left and right, as sunlight irradiation amount > 950w/m
2time, vapor (steam) temperature can reach>=103 ℃, and the normal length of service of the present invention can reach>=and 25 years.
And in high altitude localities (height above sea level of the most areas in Tibet be 4000m or below 4000m), its atmospheric pressure is 61.61KPa, available High Pressure Difference (0.05MPa) steam box, guarantee under local low air pressure condition, steam box internal pressure still reached and maintain 0.11MPa, and can equally with common height above sea level condition implement the prepared food things such as decatize rice.
Experimental result demonstration, the present invention has obtained very significantly techno-economic effect.
Claims (7)
1. a steam raising plant that adopts CPC solar concentrating collector, it comprises: solar concentrating collector (1-1) spaced apart that has CPC slot light collection mirror (1-1-1) by several is arranged the heat collector group (1) who forms, and has the steam generator (2) of thermal-arrest media heat exchanger (2-1); The thermal-arrest medium input mouth of pipe (1-1-2-1) that is located at the collector metal pipe that is U-shaped structure in glass tube with vacuum of all solar concentrating collectors (1-1) of described heat collector group (1) and the thermal-arrest medium output mouth of pipe (1-1-2-2) thereof, be connected with thermal-arrest medium delivery trunk (1-3) pipeline with heat collector group's (1) thermal-arrest medium input house steward (1-2) respectively; By thermal-arrest media heat exchanger (2-1), the water being present in steam generator (2) casing is heated, and then generating steam; In thermal-arrest medium loop, be provided with energy-storage box (3) and the first liquid pump (4),
It is characterized in that:
A, the thermal-arrest medium input mouth of pipe (1-1-2-1) of described solar concentrating collector (1-1) and the thermal-arrest medium output mouth of pipe (1-1-2-2) thereof, be by input pipe, to connect case (1-1-3) respectively and efferent duct connects case (1-1-4), and be connected with thermal-arrest medium delivery trunk (1-3) pipeline with thermal-arrest medium input house steward (1-2) respectively;
B, described energy-storage box (3) is provided with electric heater (6); Described energy-storage box (3) is arranged in the rear of steam generator (2); Described heat collector group's (1) thermal-arrest medium delivery trunk (1-3) and thermal-arrest medium input house steward (1-2) thereof, import respectively in energy-storage box (3), and the outlet of thermal-arrest medium delivery trunk (1-3) is positioned at the top of energy-storage box (3), thermal-arrest medium input house steward's (1-2) entrance, be positioned at the bottom of energy-storage box (3), thereby form heat collector group's (1) the large loop of thermal-arrest medium; And the thermal-arrest medium input pipe (2-1-1) of the thermal-arrest media heat exchanger (2-1) of steam generator (2), and thermal-arrest medium efferent duct (2-1-2), introduce respectively in energy-storage box (3), and the entrance of thermal-arrest medium input pipe (2-1-1) is positioned at the top of energy-storage box (3), the outlet of thermal-arrest medium efferent duct (2-1-2), be positioned at the bottom of energy-storage box (3), thereby form the thermal-arrest medium minor loop of steam generator (2);
C, also comprises the second liquid pump (5); Described the first liquid pump (4) is arranged on heat collector group's (1) thermal-arrest medium input house steward (1-2) pipeline of contiguous energy-storage box (3), and the second liquid pump (5) is arranged on thermal-arrest medium input pipe (2-1-1) pipeline of thermal-arrest media heat exchanger (2-1) of steam generator (2); By the first liquid pump (4), make thermal-arrest medium shuttling movement in large loop of heat collector group (1), and by the second liquid pump (5), make thermal-arrest medium shuttling movement in minor loop of steam generator (2);
D, described thermal-arrest media heat exchanger (2-1), it is spiral coil heat exchanger, and its thermal-arrest medium input port (2-1-1-1) is in the centre of spiral coil, and its thermal-arrest medium delivery outlet (2-1-1-2), be in the outermost of spiral coil, and be connected with thermal-arrest medium efferent duct (2-1-2) pipeline with thermal-arrest medium input pipe (2-1-1) respectively, thereby form spiral coil shell-side boiling heat transfer; And described thermal-arrest media heat exchanger (2-1) is at least 1, when thermal-arrest media heat exchanger (2-1) has when a plurality of, a plurality of thermal-arrest media heat exchangers (2-1) are evenly arranged in steam generator (2) casing, and by pipe joint, are connected with thermal-arrest medium efferent duct (2-1-2) branch line with thermal-arrest medium input pipe (2-1-1) respectively;
E, the CPC slot light collection mirror (1-1-1) of described solar concentrating collector (1-1), by bilateral symmetry, arranged, by involute section (1-1-1-1), be connected with parabolic segment (1-1-1-2) transition and form the slot type surface mirror (111) that is U-shaped structure, and substrate glass (112) forms; Described surface mirror (111) is back surface mirror, and in the rear surface of surface mirror (111) glass-based (111-4), plating is furnished with reflexed light film (111-1) and protective film (111-2) successively from the inside to the outside; The rear surface of described surface mirror (111), is integral and is formed CPC slot light collection mirror (1-1-1) by adhesive layer (111-3) and substrate glass (112) compound sticking;
F, also comprise and be closely contacted on respectively the notch end of described CPC slot light collection mirror (1-1-1) and the notch cover-plate glass (114) of both-side opening end and side glass cover-plate (115), by notch cover-plate glass (114) and both sides side glass cover-plates (115), the CPC slot light collection mirror that makes to be U-shaped structure, is full closeding state.
2. the steam raising plant of employing CPC solar concentrating collector according to claim 1, is characterized in that: also comprise the automaton (7) with automatic controller, described automaton (7), comprise: automatic controller (7-1), be located at first magnetic valve (7-2) of heat collector group's (1) thermal-arrest medium delivery trunk (1-3) downstream portion, be located at the first temperature sensor (7-3) in energy-storage box (3), be located at the second temperature sensor (7-4) in steam generator (2), be located at the second magnetic valve (7-5) on steam generator (2) and city public water water source attaching pipeline, be located at the level sensor (7-6) in steam generator (2) casing, be located at the 3rd magnetic valve (7-7) on thermal-arrest medium efferent duct (2-1-2) pipeline of thermal-arrest media heat exchanger (2-1) and be located at the flow sensor (7-8) on the steam output pipe road (2-3) on steam generator (2) casing top, described the first magnetic valve (7-2), the first temperature sensor (7-3), the second temperature sensor (7-4), the second magnetic valve (7-5), level sensor (7-6), the 3rd magnetic valve (7-7), flow sensor (7-8), and first liquid pump (4) and the second liquid pump (5), all be electrically connected to automatic controller (7-1), accept automatic controller (7-1) and control, when whole device is started working, by automatic controller (7-1), drive the first liquid pump (4) to work and open the first magnetic valve (7-2), order is present in the thermal-arrest medium motion in system and forms loop, accepts solar energy heating, when the thermal-arrest medium of energy-storage box (3) reaches design temperature, the first temperature sensor (7-3) is by automatic controller (7-1), drive the second liquid pump (5) to start working, and open the 3rd magnetic valve (7-7), make the interior thermal-arrest medium of energy-storage box (3) enter the thermal-arrest media heat exchanger (2-1) of steam generator (2) and form loop, the water heating being present in steam generator (2) casing is produced to steam, and when in energy-storage box (3), temperature is lower than design temperature, by the first temperature sensor (7-3), by automatic controller (7-1), drive electric heater (6) work, to the thermal-arrest dielectric heating in energy-storage box (3), and when in energy-storage box (3), temperature reaches design temperature, electric heater (6) quits work and no longer heats, when the water within being present in steam generator (2) casing reaches design temperature, the second temperature sensor (7-4) sends early warning signal by automatic controller (7-1), informs that people can implement with vapour, when the water level of steam generator (2) drops to minimum critical groundwater table, by level sensor (7-6), by automatic controller (7-1), open the second magnetic valve (7-5), give steam generator (2) casing moisturizing, and when in steam generator (2), water level rises to the highest critical groundwater table,, by level sensor (7-6), by automatic controller (7-1), close the second magnetic valve (7-5) and stop to steam generator (2) casing moisturizing, when gas utilization unit stops using vapour, by flow sensor (7-8), by automatic controller (7-1), close the 3rd electromagnetism (7-7) and the second liquid pump (5), stop thermal-arrest medium being provided and stopping steaming to thermal-arrest media heat exchanger (2-1).
3. the steam raising plant of employing according to claim 1 CPC solar concentrating collector, it is characterized in that: the caliber of described thermal-arrest media heat exchanger (2-1) is within the scope of 10 ~ 12mm, the spacing of adjacent 2 tube and tube is not less than 4mm, and its spiral number of turns is within the scope of 10 ~ 15 circles.
4. the steam raising plant of employing CPC solar concentrating collector according to claim 1, is characterized in that: described reflexed light film (111-1) is silver-colored reflexed light film, and described protective film (111-2) is Cu protective film layer.
5. the steam raising plant of employing according to claim 1 CPC solar concentrating collector, it is characterized in that: the outer surface of described notch cover-plate glass (114) and notch both sides side glass cover-plates (115) also all from the inside to the outside successively plating be furnished with sunshine high antireflection film layer and automatically cleaning rete, and both inner surface also all plating be furnished with sunshine high antireflection film layer.
6. the steam raising plant of employing CPC solar concentrating collector according to claim 1, is characterized in that: in the downstream portion of heat collector group (1) thermal-arrest medium delivery trunk (1-3) pipeline, be also provided with liquid-gas separator (8).
7. the steam raising plant of employing CPC solar concentrating collector according to claim 1, it is characterized in that: the casing of described steam generator (2) is cylindric, and its diameter aspect ratio is within the scope of 2 ~ 2.5:1.
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| CN201310042121.8A CN103090347B (en) | 2013-02-04 | 2013-02-04 | Steam generating device adopting compound parabolic concentrator (CPC) solar collector |
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| JPS59150252A (en) * | 1983-02-16 | 1984-08-28 | Hitachi Ltd | Heat-exchange-part sealing type vacuum tube system solar heat collector |
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Address after: 213100 Changzhou Province, Wujin District, the town of cattle, the town of rainbow road, No. 26 Patentee after: ROYAL TECH CSP LIMITED Address before: 213163, No. 26, West Rainbow Road, Changzhou Tong Industrial Park, Wujin District, Jiangsu Patentee before: Changzhou Longteng Solar Energy Heating Equipment Co., Ltd. |