CN2620838Y

CN2620838Y - Roof greenhouse type solar energy electric generating system

Info

Publication number: CN2620838Y
Application number: CNU032464975U
Authority: CN
Inventors: 赵贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-18
Filing date: 2003-04-18
Publication date: 2004-06-16
Anticipated expiration: 2013-04-18

Abstract

A generating system of solar energy of a roof greenhouse consists of a solar energy greenhouse built on a flat roof of a house roof, a bottom air entry, a top air entry, an electric generating set of a gas turbine, a top side opening and a top cover board. The bottom air entry of the greenhouse collects hot siphon currents of air which are produced from three building elevations and further heated and collected by solar energy when entering into the greenhouse, and high-speed currents of air are formed to impact the gas turbine built in the ridge of the greenhouse together with the roof wind power coming from the top side opening. The gas turbine rotates and drives a generator to generate electricity which is merged into nets and used nearby. Compared with the engineering system of roof sunshine using photosensitive cells of solar energy, the generating system of solar energy of the roof greenhouse has higher efficiency and better versatility.

Description

Greenhouse of roof's formula solar power system

The utility model relates to a kind of electricity generation system of solar thermal utilization.

At present utilize the technology path of solar electrical energy generation to mainly contain two kinds both at home and abroad: 1. solar photovoltaic generating; 2 solar thermal power generations.

Early stage solar electrical energy generation is based on solar thermal power generation, and some developed countries of Europe have carried out some experiment and demonstration engineerings, because reason such as the hold facility soil of this solar electrical energy generation and one-time investment be too big fails to apply after all.

Nearly two during the last ten years, and the producer, businessman and the user that are engaged in solar electrical energy generation both at home and abroad almost concentrate on the hope of solar electrical energy generation on the solar cell.Its reason is: 1 this photovoltaic cell area is big and in light weight, is well suited in the aerospace craft of satellite class to use, and is same, and being assemblied on the building surface of solar radiation not, land occupation also is rational; Without any running gear, there is not wear problem in the 2 photovoltaic electrification component systems.In a single day high transformation efficiency and low-cost production appear in 3 people a kind of new material that waits in expectation, and finally reach the level that can compete mutually with conventional energy resource.But present market reality is: the transformation efficiency of monocrystalline silicon, polysilicon and non-crystalline silicon solar cell increases closely during the last ten years to some extent, but recruitment and little.Up to the present, the efficient that transforms of photoelectricity is only in 20%.For example, introduce Japanese advanced technology by Rijia Power Co., Ltd., Beijing in June, 2002, adopts state-of-the-art technology and product, built up the demonstration project of 10KW photovoltaic grid-connection power plant for No. one in Nan Li, Gaobeidian City, Chaoyang District, Beijing City Si Qu first.Its electricity conversion just 13.1%, and the combined efficiency of system is only 10% more; Yet price is up to more than 30-40 unit/WP; Exactly because also low the and high reason of price of efficient forces its produce market to move back to the equilateral area of not having electricity far away, frontier defense sentry post, and economically underdeveloped area exactly, these areas, this has just determined the very little result of this product market share; In addition, the solar cell common buildings is on building inclined roof face, and " new sunlight program " and the heavy constructions such as " 1,000,000 roof plans " of the U.S. of Japan all are such.Solar panel blocks the sunlight on roof, the comprehensive utilization of other solar energy of overslaugh; Can generate electricity when have solar radiation daytime, and when not having solar radiation daytime and night, solar panel just can not generate electricity.

The purpose of this utility model is: the inclined roof attic floor of building is changed and is designed to solar energy greenhouse, three in the east southeast in greenhouse west is domatic to be transparent surface, these three domatic bottom surfaces are to choose cornicing of certain distance, the south of the following and building that cornices, east, outer, three vertical plane wall tops, west form the bottom air import in greenhouse, so that air-flow flows in the greenhouse from the lower plane of cornicing suitablely, cornicing and being designed to section is rectangle, trapezoidal or semicircular water leg, so that collect precipitation; The north slope face is the structural plane of insulation, and the bottom is not established to cornice and directly is connected so that the gas-flow resistance minimum with northern facade is slick and sly; Spine's design and installation in greenhouse has the turbo-generator group of horizontal axis, and the both ends or one end of turbine axle are equipped with generator, and following, the southern side face of turbine, the building part of north side face are provided with the air port, so that the smooth-going inflow or the outflow of air-flow; Because solar radiation is very big at the energy of roof of storied building, south elevation and thing facade, solar energy is heated into hot body with these building surfaces, being attached to air on the building surface is heated the back and upwards quickens to flow along metope, to roof after the water conservancy diversion that cornices enters the greenhouse, further heating in the greenhouse again, air-flow is collected to the top, greenhouse fast, and connection impacts the turbine rotation jointly with the wind-force of roof, and then the drive generator for electricity generation, just proximad architecture indoor provides electric power.

The shared soil of building is recycled to is used for high economic plantation in the greenhouse or cultures, this saves a large amount of land resource for the national conditions that China has a large population and a few land and the increase income is very important.It is very necessary utilizing the greenhouse to reclaim the precipitation comprehensive utilization.

The utility model is greenhouse of roof's formula solar power system of building greenhouse of roof and turbo-generator and corollary equipment formation.For making the person of an ordinary skill in the technical field can understand concrete structure principle of the present utility model and characteristics, so description of drawings.

Fig. 1 is the integral arrangement and the operational system schematic diagram of greenhouse of roof's formula electricity generation system;

Fig. 2 is the domatic structural representation of spine of greenhouse of roof and north and south;

Fig. 3 is the profile of turbo-generator.

Greenhouse of roof's formula solar power system overall construction design and operation principle such as Fig. 1, Fig. 2 and shown in Figure 3.Solar radiation is the end face of building, south elevation and the heating of thing facade, is attached to air on end face 1, south elevation 2, east elevation 3 and the western facade 4 and near air and is heated immediately, produces thermal siphon pressure, and heated air upwards flows.Because the bottom in 5 south domatic 6, greenhouse cornices 7, domatic 8 bottom, east cornices 9 and the bottom in the west domatic 10 11 common interception guide functions of cornicing, hot gas confluxes to enter in the greenhouse 5 from greenhouse bottom air import 12 and further is heated, and in the greenhouse under the domatic effect that further compiles, flow into the long strip type rectangle or the conical top air outlet slit 14 of greenhouse spine 13 with higher speed, the turbine 16 that horizontal axis is installed above this outlet directly is subjected to the impact of high flow velocities air-flow and the wind-force associating impetus that enters from ridge top side air port 17 produces and rotates around the orientation of axle 18, drives generators 20 by shaft coupling pin 19 and sends electric energy.Because turbo-generator system head, the junction running in bearings box 21 between turbine and between turbine and generator makes each maintenance concentric, and bearing box base 22 is fixed on the building foundation of top air outlet slit.The top blind flange 23 capping turbo-generator groups of greenhouse ridge are rainproof, water conservancy diversion and be convenient to safeguard.

Because the variation in the four seasons, round the clock alternately, the instability of sun altitude and azimuthal variation and atmosphere air quality, the particularly influence of meteorological condition such as wind and cloud sleet, solar radiation is extremely unsettled to the energy on the building surface, and it is essential adopting the battery savings and being incorporated into the power networks.Except the function of roof solar generating, the greenhouse on roof is recycled to the shared soil of building in the greenhouse and plants, and one side adequately protects and utilized land resource, has avoided the large-area loss in soil; Reclaim rainwater resource timely on the one hand and utilized nearby, slowed down the many-side harm that flood outburst and soil erosion etc. are caused; High economic plantation in the greenhouse has increased very considerable economic on the other hand; The a large amount of absorbing carbon dioxide of plant discharges oxygen, has slowed down greenhouse effects, and the people for architecture indoor provide fresh air nearby, also improve and optimize the environment of our human survival at last gradually; From the angle of construction investment, adopt the construction scheme of greenhouse of roof's solar power system, under the building cost conditions of higher of big and medium-sized cities, one-time investment might be also lower than inclined roof loft.For samll cities and towns, one-time investment is close to quite; As for the year operational and administrative expenses, the utility model then has remarkable advantages obviously.

In greenhouse of roof's formula solar power system, the parts of key problem in technology are turbines.The utility model has adopted the major axis impeller of screw type blade to help the raising of generating efficiency, has the sensitivity of startup for low speed flow, then has certain resistance for super-strength wind-force.Impeller adopts corrosion resistant and aging-resistant fiberglass class light material to make, so have desirable practical characteristics such as safe, firm, durable in use.It is very reasonable to combine with architecture-integral.Has the great market prospect of applying.

Claims

1, greenhouse of roof's formula solar power system, constitute by solar energy greenhouse, bottom air import, top air outlet slit, turbo-generator group, top side air port and top blind flange, it is characterized in that: solar energy greenhouse is built on the building deck, the turbo-generator group is installed in the ridge place in greenhouse, thereby constituted the air that rises along elevation of building from greenhouse bottom air import enter the greenhouse by sun heating after, flow out the operational system of impacting the turbine rotation and driving generator for electricity generation through the top of greenhouse ridge air outlet slit.

2, greenhouse of roof according to claim 1 formula solar power system, it is characterized in that: the solar energy greenhouse of building on the building deck, south, east, three the domatic bottom design in west are stretched out the roof, building of south, east, three elevations of building in west along certain distance and certain altitude outside becoming to cornice, form the strip air intlet of bottom, greenhouse, north slope face and build that northern facade is smooth-going to be connected.

3, greenhouse of roof according to claim 2 formula solar power system, it is characterized in that: cornicing and be designed to section in south, greenhouse, east, three domatic bottoms, west is rectangle, trapezoidal or semicircular water leg.

4, greenhouse of roof according to claim 1 formula solar power system, it is characterized in that: the ridge center along the greenhouse is provided with a vertical strip top air outlet slit that makes progress of opening.

5, greenhouse of roof according to claim 4 formula solar power system, it is characterized in that: the section configuration of strip top air outlet slit is straight-tapered or rectangle.

6, greenhouse of roof according to claim 1 formula solar power system, it is characterized in that: in the turbo-generator group, generator is arranged on the two ends of greenhouse ridge, a plurality of turbines are then evenly arranged and assembling successively along the shaft centre line of generator, between each turbine and the end axle between turbine and generator connect with one heart with the shaft coupling pin and be inserted in the bearing box, the bearing box support is fixed on the greenhouse ridge, constitutes a complete turbo-generator group.

7, greenhouse of roof according to claim 6 formula solar power system, it is characterized in that: the blade of turbine is a screw type, helical angle is 30 °-60 °.

8, greenhouse of roof according to claim 1 formula solar power system, it is characterized in that: the turbine design and installation in the turbo-generator group forms the arc surface matched in clearance directly over the air outlet slit of ridge top, greenhouse.

9, greenhouse of roof according to claim 1 formula solar power system, it is characterized in that: the cover plate that is provided with capping turbo-generator group directly over the turbine of turbo-generator group, the bottom surface of cover plate is that a face of cylinder and turbine are formed the circular arc matched in clearance, and be fixed on above the greenhouse ridge, form strip top side air port in the both sides of turbine simultaneously, so that the wind-force on the building deck promotes the generating of turbo-generator group jointly.