A kind of small-sized photo-thermal coupling solar power station
The present invention relates to a kind of solar power station, especially relate to a kind of small-sized photo-thermal coupling solar power station, belong to application of solar.
Photovoltaic industry domestic at present, also trial is had to utilize solar photovoltaic assembly, design photothermal combined apparatus or power station, but mainly with the heat that the collection assembly that the form of " thermal-collecting tube " is scattered generates, like this and cause that heat collection is scattered, effect is low, well can not reduce temperature when assembly normally works, be difficult to obtain good economic benefit.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of small-sized photo-thermal coupling solar power station is provided, this Power Plant Design structure is simple, cost is low, heat radiation is good, generating efficiency is high, and can the abundant heat that comes out of Collection utilization assembly solar power generation assembly.
In order to solve above technical problem, the invention provides a kind of small-sized photo-thermal coupling solar power station, comprise shallow-water tank and solar power generation assembly, solar power generation assembly is that array is arranged in shallow-water tank, in shallow-water tank, inject water and ensure that the upper surface of solar power generation assembly is not immersed in water, after each solar power generation modules in parallel or series connection, connecting the inverter and load formation distributed solar energy power station that are placed in shallow-water tank outside successively; The bottom of one side of shallow-water tank has delivery port, another side of shallow-water tank is provided with the first ball-cock assembly, first ball-cock assembly connects cold tanks and controls the height of water level of shallow-water tank, the second ball-cock assembly is provided with in cold tanks, cold tanks connects circulating chilled water mechanism and oral siphon by the second ball-cock assembly, and the other end of circulating chilled water mechanism connects delivery port by the first break valve.
The technical scheme that the present invention limits further is:
Be provided with hot water between first break valve and circulating chilled water mechanism, be provided with heat exchanger in hot water, hot water connects hot water outlet by the second break valve, and hot water is connected by the 3rd break valve with circulating chilled water mechanism.
Further, aforementioned first ball-cock assembly is connected with aforementioned cold tanks by the 4th break valve.
Aforementioned oral siphon is provided with the 5th break valve.
Aforementioned solar power generation component count is 5-30 block.
Aforementioned solar power generation assembly is filling junction box assembly.
Aforementioned shallow-water tank adopts heat-insulating material to make.
Former hotter water outlet is provided with collector container, collects shallow-water tank and flow out hot water.
The invention has the beneficial effects as follows:
Shallow-water tank of the present invention adopts heat-insulating material, when the water in shallow-water tank is collected the heat produced during component operation, prevents shallow-water tank cell body to heat absorption and discharges, effectively can reduce thermal loss.
The filling junction box assembly of assembly of the present invention, can for a long time, directly be immersed in water, can be good at like this reducing the working temperature of assembly, can the working temperature of more effective Assurance component at about 20 DEG C.
Crystalline silicon component has the characteristic of negative temperature coefficient, and the lower conversion efficiency of working temperature is higher, be generally-0.4%/DEG C about.The normal working temperature of assembly is about 60 DEG C, assembly is placed in the working temperature of water at about 20 DEG C, can the overall generating efficiency improving photovoltaic plant 10-15%.
In the present invention, assembly lower surface and alloy frame are soaked in water, and upper surface floats on the surface, can better collection assembly work time the heat that comes out, and be conducive to the Collection utilization of heat.
Cold water of the present invention adopts ball-cock assembly to during shallow-water tank water filling, ball-cock assembly can control the height of the water surface in shallow-water tank, ensure that alloy frame and the lower surface of filling junction box assembly are immersed in the water, upper surface is exposed at outside the water surface, while guarantee heat collection, do not affect the life-span of generating efficiency and device.
Hot water outlet installs collector container, collects hot water and carry out life and utilize, can more fully collection photovoltaics component operation time the heat that produces, and utilization of can directly living, make about 50% must heat can by Collection utilization again.
Structure of the present invention is simple, and easy and simple to handle, and the heavy parts that the present invention adopts is less, and material is less demanding, and therefore cost is lower.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Reference numeral: 1-shallow-water tank, 2-solar power generation assembly, 3-first ball-cock assembly, 4-cold tanks, 5-hot water, 6-second ball-cock assembly, 7-first break valve, 8-second break valve, 9-the 3rd break valve, 10-the 4th break valve, 11-the 5th break valve, 12-oral siphon, 13-circulating chilled water mechanism, 14-heat exchanger, 15-hot water outlet.
The one that the present embodiment provides small-sized photo-thermal coupling solar power station, as shown in Figure 1, comprise shallow-water tank 1 and solar energy solar power generation assembly 2, shallow-water tank 1 adopts heat-insulating material to make to structure.The bottom of shallow-water tank 1 one sides has delivery port between two parties, and another side of shallow-water tank 1 is provided with the first ball-cock assembly 3, first ball-cock assembly 3 and connects cold tanks 4 and control the height of water level of shallow-water tank 1.
Solar power generation assembly 2 quantity is 5-30 block, solar power generation assembly 2 is filling junction box assembly, solar power generation assembly 2 is arranged in parallel and to be fixedly installed on shallow-water tank 1 inner, in shallow-water tank 1, inject water and ensure that the upper surface of solar power generation assembly 2 is not immersed in water, after each solar power generation assembly 2 is connected in parallel, connecting the inverter being placed in shallow-water tank 1 outside and load formation distributed solar energy power station successively;
First ball-cock assembly 3 is connected with cold tanks 4 by the 4th break valve 10, is provided with the second ball-cock assembly 6 in cold tanks 4, and cold tanks 4 connects circulating chilled water mechanism 13 and oral siphon 12 by the second ball-cock assembly 6, and oral siphon 12 is provided with the 5th break valve 11.
The other end of circulating chilled water mechanism 13 connects hot water 5 by the 3rd break valve 9.Be provided with heat exchanger 14 in hot water 5, hot water 5 connects hot water outlet 15 by the second break valve 8, and hot water 5 is connected to the delivery port of shallow-water tank 1 by the first break valve 7.
Hot water outlet 15 is provided with collector container, collects shallow-water tank and flow out hot water.
The working method of the present embodiment is: in cold tanks 4 and shallow-water tank 1, inject cold water by oral siphon, first ball-cock assembly 3 controls the height of water level in shallow-water tank 1, second ball-cock assembly 6 controls the height of water level in cold tanks 4, when the height of water level in shallow-water tank 1 is higher than the lower surface of solar power generation assembly 2, the alloy frame of submergence solar power generation assembly 2 and upper surface lower than solar power generation assembly 2 time, first ball-cock assembly 3 is closed, when the water level in cold tanks 4 reaches setting height, second ball-cock assembly 6 is closed, when SEA LEVEL VARIATION, ball-cock assembly opens supplementary cold water automatically.Solar power generation assembly 2 produces heat under operating conditions, and working temperature raises, and cold water absorbs the heat of solar power generation assembly, and the temperature reducing assembly is to improve generating efficiency.Hot water flows into hot water 5 by delivery port 15, and exchange heat can be gone out by the heat exchanger 14 in hot water 5 by hot water, cold water in the capillary water pipe of heat exchanger flows out by transferring hot water at hot water Inner eycle, and then heat is taken away, and cold water is entered cold tanks 4 by circulating chilled water mechanism 13 by cooled water again, or open the second break valve 8 and hot-water collection is entered collector container, the heat collection that handle component distributes gets up to recycle.
The present embodiment is close with embodiment 1, and difference is the connected mode of solar power generation assembly 2, and for being connected in series between the solar power generation assembly 2 of the present embodiment, solar power generation assembly 2 quantity is 5-30 block.
The working method of the present embodiment is identical with embodiment 1.
In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of application claims.