CN2116176U

CN2116176U - Combined solar boiler

Info

Publication number: CN2116176U
Application number: CN91219979U
Authority: CN
Inventors: 郭纯道
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-08-09
Filing date: 1991-08-09
Publication date: 1992-09-16

Abstract

The utility model relates to a combined solar boiler which is mainly composed of a support, a frame, a boiler unit assembly. The boiler unit assembly is a groove-shaped parabolic box. The inner layer and the outer layer of the box are flexuously nailed by fibred board. The end board is made by non-metallic thermal insulating material. The inner layer and end board are pasted by vacuum aluminized polyester film. The middle layer is the wool or glass wool heat-insulating layer. The upper cover is glass. The heat collector is arranged on the focal line of the reflector between the both end boards of the box. The utility model utilizes solar energy to cause the water arranged on the focal line of the heat collecting pipe boiling up. The surface of the heat collector forms a black cupric oxide thin film via treatment. The utility model adopts dual spindle equator manual tracking system and has the advantages of high thermal efficiency, convenient and accuracy manual tracking, simple preparing process, low cost, etc.

Description

Combined solar boiler

The utility model relates to a kind of solar device that utilizes, and especially has " the combined solar energy boiler " of " box ", " focusing " advantage.

At present, known solar facilities has " box " and " paraboloid of revolution is focusing " two big discrete form.The former shortcoming is generally not follow the tracks of the sun, can not make full use of solar energy.The latter's shortcoming is that reflector, heat collector are exposed in the atmosphere, and temperature, wind-force influence big to equipment thermal efficiency, and thermal loss is big, and reflector easily pollutes, and wipes inconvenience, and the life-span is low.Moreover make paraboloidal antenna processing technology complexity, the cost height.The existing heat-absorbent surface that utilizes solar energy (heat energy) equipment all is to obtain absorbing surface with spraying, brushing method,, thick coating thicker because of coating, and absorptivity is below 90%, and emissivity is 30～60%.The formality of the present manual tracking sun is all complicated, need carry out elevation angle and azimuthal tracking simultaneously.

The purpose of this utility model provides a kind of combined solar energy boiler, utilizes solar energy to produce boiling water with the higher thermal efficiency, reduces the thermal loss of equipment; Improve the solar spectral absorptivity of thermal-collecting tube, reduce emissivity; Simplify the formality of manually following the tracks of the sun, improve the accuracy of following the tracks of the sun; Reduce the influence of temperature, wind-force, the life-span of improving reflector to equipment thermal efficiency; For country economizes on resources, replace materials such as traditional metal, plastics, fiberglass with cheap practical nonmetallic materials, reduce cost;

Order of the present utility model is achieved in that

1. adopt the focusing of flute profile paraboloid, thermal-insulating sealing, put thermal-collecting tube, make thermal-collecting tube avoid the influence of temperature, wind-force, reduce thermal loss, be convenient to wipe, improved the life-span of reflector on the line concentration, under the glass;

2. the treated formation selective solar spectrum sorbent surface in thermal-collecting tube surface-cupric oxide film makes absorptivity be increased to more than 95% less than 90% by traditional, and emissivity is reduced to below 10% by 30～60%;

Employing is by support, the bearing that moves about, universal bearing, day axle, the season twin shaft equator tracking system formed such as axle, simplified the formality of the manual tracking sun, improved the accuracy of following the tracks of, axle every day in season or a couple of days rotate once, and each tracking only need be stirred framework and be got final product.Native system is applicable to that the earth is taken up an official post and where distinguishes;

The concrete grammar of dealing with problems is:

1. the boiler assembly is the parabolic case of flute profile of a three-decker.Internal layer is by cheap practical fiberboard, according to the x of two end plates ²The parabola shaped sigmoid nail of=2py system forms.If p=430mm, focal length=p/2.Internal layer and two end plates the inside are pasted vacuum aluminum-coated polyester film and are constituted reflector.The middle level is the heat-insulation layer that mineral wool or mineral wool are formed.Skin is also with fiberboard nail system.Twice of 191 coating brushing of shell, end plate outside good waterproof performance, good weatherability.End plate with magnesia, magnesium chloride, saw foam wood shavings fill a prescription routinely moulding by casting, solidify and form.Respectively there is the hole of a φ 23 at 235 places apart from the summit on the parabola axis of two end plates, in order to thermal-collecting tube is installed.Parabola summit distance to glass is that 279.2 thermal-collecting tubes are that the end socket two ends, aluminum pipe two ends of a φ 70 wall thickness 1 long 960 are connected to filler pipe, adjutage and valve respectively.Aluminum tube surfaces is through following PROCESS FOR TREATMENT: with clear water clean-aqueous sodium carbonate with 5% cleans again and again with the clear water flushing, wipe dried-evenly be heated to 300 ℃-spray 5% vaporific copper nitrate aqueous solution-evenly the be heated to uniform cupric oxide film of appearance.The thermal-collecting tube two end plates of packing into is given in the hole of staying, and rubber cushion on the pad covers glass, presses the angle.On the casing center of gravity line parallel, the season axle is installed with end plate.The water inlet pipe of the upper end (water inlet pipe end) of boiler assembly and the gap in hole are obturaged, prevent that with putty in the current cartonning, the hole of lower end must not be obturaged, and preventing that air is swollen rises by spalling glass.

2. the processing of thick stick frame: the thick stick frame is a rectangle frame with angle steel weldering system, be welded with on its two minor faces center line two sections day axle, on the center line on two long limits pair of bearings is installed.

3. the processing of support: support is a low shelf of the high end of an end by angle steel, band steel, steel pipe welding, connection, and it is high-end to be a curved pipe, and the bearing that moves about can be installed in the top, and low side can be installed universal bearing with band steel weldering system on it.

Since adopt such scheme, can be at cloudless autumn in summer fine day, and mountain region wind in the Hebi burns the 4kg boiling water through 45 minutes time utilization solar energy.(3～4 manually tracking)

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is a general assembly drawing of the present utility model.Double as is implemented illustration.

Fig. 2 is the A-A profile of Fig. 1.

Fig. 3 is thermal-collecting tube figure.

Fig. 4 is a frame diagram.

Fig. 5 is support figure.

Fig. 6 is the bearing figure that moves about.

Fig. 7 is universal bearing figure.

1. water heater assemblies, 2. frameworks, 3. supports 4. bearing 5.T type sieve bolt 6 floral discs 7. season axle, 8. lock handles axle 10. universal bearings on the 9.th that move about among Fig. 1

18. bar 19. end plates of 11. bearings, 12. reflectors, 13. heat-insulation layers, 14. shells, 15. thermal-collecting tubes, 16. glass, 17. sieve bolts among Fig. 2

22 aluminum pipes, 23 filler pipes, 24 adjutages, 25 valves among Fig. 3

21 locking sieve bolts among Fig. 4

Embodiment: (is example with mountain in the Hebi)

The day shaft centre line projection of support 3 is placed on the terrestrial meridian, the support low side is towards south, longitude as mountain in the Hebi is 114 ° of east longitudes, when Beijing daylight-saving time 13:24 ' promptly is the high noon on mountain in the Hebi, is the meridian of this locality this moment perpendicular to the pole shadow sensing of ground level;

The bearing 4 that will move about is installed on support 3 curved pipes, and universal bearing 10 is installed in a framework day axle end of 9 (long end);

With framework day axle 9 the other end insert in the bearing 4 that moves about, universal bearing 10 is installed in the low side U-lag of support 3;

The season axle of boiler assembly 1 is contained in the pair of bearings on the framework 2, floral disc 6 is contained on the season axle 7, good and sound axle key is set up lock handle 8;

Move up and down the bearing 4 that moves about, make day shaft centre line and horizon angle equal local geographic latitude, as 35 ° 40 of mountain in the Hebi ';

Valve-off 25 adds ninety percent full cold water by filler pipe 23;

Stir boiler assembly 1, make the sunray at glass 16 planes and high noon vertical, fastening then lock handle 8, every day or a couple of days are adjusted once;

Stir framework 2, make the shade center of thermal-collecting tube 15 drop on the summit of reflector 12, fastening then relevant T type sieve bolt 5 was adjusted once in per 15 minutes;

After the water of thermal-collecting tube 15 bottoms is opened, open valve, emit boiling water, carry out next circulation again.

Claims

1, a kind of combined solar energy boiler, " box " and " paraboloidal antenna is focusing " two big discrete form are arranged, it is characterized in that: on the low support of an at one end high end, the high-end bearing that moves about that is equipped with, low side is equipped with universal bearing, in two bearings, install and have day rectangular frame of axle, with the vertical frame center line of day axis on pair of bearings is housed, the boiler assembly that has the season axle is installed in bearing, the boiler assembly be one by the flute profile paraboloid, end plate, heat-insulation layer, shell, thermal-collecting tube, the sealing that glass etc. are formed, printing opacity, the casing of insulation, on the casing center of gravity line vertical, the season axle is installed with the reflector focal line.

2, the boiler assembly of combined solar energy boiler according to claim 1 is characterized in that: reflector is with the x of fiberboard according to two end plates ²=2py parabolic shape forms through bending nail system, and the outside lining is with the mineral wool or the mineral wool of uniform thickness, and reprocess fibre plate nail is made shell, and reflector and end plate inner surface are pasted vacuum aluminum-coated polyester film, under the reflector focal line upper glass thermal-collecting tube are being installed between two end plates.

3, the thermal-collecting tube of combined solar energy boiler according to claim 1 is characterized in that: filler pipe, aluminum pipe, adjutage, valve are linked in sequence, the treated formation selective solar spectrum absorbing surface of aluminum tube surfaces-black oxidation copper film.

4, the support of combined solar energy boiler according to claim 1, it is characterized in that: support is high-end to be a curved steel tube, installation can be slided along curved pipe and also can be fixed the bearing that moves about of a certain position on it, and low side is a band steel shelf, and universal bearing is installed on it.