CN103795327A - Small photo-thermal combination solar power station - Google Patents

Abstract

The invention discloses a small photo-thermal combination solar power station. The small photo-thermal combination solar power station comprises a shallow water channel and solar power generation components, wherein the solar power generation components are arranged in the shallow water channel in an array mode, water is poured into the shallow water channel, it is guaranteed that the upper surfaces of the solar power generation components are not soaked in water, all the solar power generation components are connected with an inverter and a load in sequence after being connected in parallel or in series to form a distributed solar power station, the inverter and the load are arranged outside the shallow water channel, a water outlet is formed in the bottom of one side edge of the shallow water channel, a first ball float valve is arranged on the other side edge of the shallow water channel and connected with a cold water tank and controls the water level of the shallow water channel, a second ball float valve is arranged in the cold water tank, the cold water tank is connected with a cold water circulating mechanism and a water inlet pipe through the second float ball valve, and the other end of the cold water circulating mechanism is connected with the water outlet through a first stop valve. The small photo-thermal combination solar power station is simple in structural design, low in cost, good in cooling performance, high in power generation efficiency, and capable of sufficiently collecting and utilizing heat emitted by the solar power generation components.

Description

A kind of small-sized photo-thermal coupling solar power station

Technical field

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.

Background technology

Domestic photovoltaic industry at present, also have and attempt utilizing solar photovoltaic assembly, design photothermal combined apparatus or power station, but the heat generating mainly with the scattered collection assembly of the form of " thermal-collecting tube ", like this and caused that heat collection is scattered, effect is low, temperature can not well reduce assembly and normally work time, is 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 is simple in structure, cost is low, heat radiation is good, generating efficiency is high, and can fully collect the heat that utilizes assembly solar power generation assembly to come out.

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 array and is arranged in shallow-water tank, injected water guarantee that the upper surface of solar power generation assembly is not immersed in water in shallow-water tank, connects successively the inverter and the load that are placed in shallow-water tank outside and forms distributed solar energy power station after the in parallel or series connection of each solar power generation assembly; 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, the first ball-cock assembly connects cold water water tank and controls the height of water level of shallow-water tank, in cold water water tank, be provided with the second ball-cock assembly, cold water water tank connects cold water cycling mechanism and oral siphon by the second ball-cock assembly, and the other end of cold water cycling mechanism connects delivery port by the first break valve.

The technical scheme that the present invention further limits is:

Between the first break valve and cold water cycling mechanism, be provided with hot water, heat exchanger is installed 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 cold water cycling mechanism.

Further, aforementioned the first ball-cock assembly is connected with aforementioned cold water water tank by the 4th break valve.

Aforementioned oral siphon is provided with the 5th break valve.

Aforementioned solar power generation component count is 5-30 piece.

Aforementioned solar power generation assembly is filling junction box assembly.

Aforementioned shallow-water tank adopts heat-insulating material to make.

In former hotter water outlet, collector container is installed, 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 heat producing is collected, has prevented shallow-water tank cell body to heat absorption and has discharged when the water in shallow-water tank is worked to assembly, can effectively 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, and more effectively the working temperature of Assurance component is 20 ℃ of left and right.

Crystalline silicon component has the characteristic of negative temperature coefficient, and the lower conversion efficiency of working temperature is higher, is generally-0.4%/℃ left and right.The normal working temperature of assembly is 60 ℃ of left and right, assembly is placed in to the working temperature of water 20 ℃ of left and right, can the overall generating efficiency that improves photovoltaic plant 10-15%.

In the present invention, assembly lower surface and alloy frame are under water, and upper surface floats on the surface, the heat coming out when collection assembly work better, and be conducive to the collection utilization of heat.

Cold water of the present invention adopts ball-cock assembly during to shallow-water tank water filling, ball-cock assembly can be controlled the height of the water surface in shallow-water tank, the alloy frame and the lower surface that guarantee filling junction box assembly are immersed in the water, upper surface is exposed at outside the water surface, in guaranteeing heat collection, do not affect the life-span of generating efficiency and device.

Collector container is installed on hot water outlet, is collected hot water utilizations of live, the heat of generation when collection photovoltaics assembly is worked more fully, and the utilization of can directly living, make 50% left and right obtain heat and can again be collected utilization.

Of the present invention simple in structure, and easy and simple to handle, 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-the first ball-cock assembly, 4-cold water water tank, 5-hot water, 6-the second ball-cock assembly, 7-the first break valve, 8-the second break valve, 9-the 3rd break valve, 10-the 4th break valve, 11-the 5th break valve, 12-oral siphon, 13-cold water cycling mechanism, 14-heat exchanger, 15-hot water outlet.

Embodiment

embodiment 1

The small-sized photo-thermal coupling of the one solar power station that the present embodiment provides, structure as shown in Figure 1, comprises shallow-water tank 1 and solar energy solar power generation assembly 2, shallow-water tank 1 adopts heat-insulating material to make.The bottom of 1 one sides of shallow-water tank has delivery port between two parties, and another side of shallow-water tank 1 is provided with the height of water level that the first ball-cock assembly 3, the first ball-cock assemblys 3 connect cold water water tank 4 and control shallow-water tank 1.

Solar power generation assembly 2 quantity are 5-30 piece, solar power generation assembly 2 is filling junction box assembly, solar power generation assembly 2 is arranged in parallel and is fixedly installed on shallow-water tank 1 inside, at the interior injected water of shallow-water tank 1 and guarantee 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, connect successively the inverter and the load that are placed in shallow-water tank 1 outside and form distributed solar energy power station;

The first ball-cock assembly 3 is connected with cold water water tank 4 by the4th break valve 10, is provided with the second ball-cock assembly 6 in cold water water tank 4, and cold water water tank 4 connects coldwater cycling mechanism 13 andoral siphon 12 by the second ball-cock assembly 6, andoral siphon 12 is provided with the5th break valve 11.

The other end of coldwater cycling mechanism 13 connects hot water 5 by the 3rd break valve 9.Heat exchanger 14 is installed in hot water 5, and hot water 5 connectshot water outlet 15 by thesecond break valve 8, and hot water 5 is connected to the delivery port of shallow-water tank 1 by the first break valve 7.

Onhot water outlet 15, collector container is installed, collects shallow-water tank and flow out hot water.

The working method of the present embodiment is: by oral siphon to cold water water tank 4 and the interior injection cold water of shallow-water tank 1, the first ball-cock assembly 3 is controlled the height of water level in shallow-water tank 1, the second ball-cock assembly 6 is controlled the height of water level in cold water water tank 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 during lower than the upper surface of solar power generation assembly 2, the first ball-cock assembly 3 is closed, when the water level in cold water water tank 4 reaches setting height, the second ball-cock assembly 6 is closed, in the time of SEA LEVEL VARIATION, ball-cock assembly is opened supplementary cold water automatically.Solar power generation assembly 2 produces heat under working condition, and working temperature raises, and cold water absorbs the heat of solar power generation assembly, and the temperature that reduces assembly improves generating efficiency.Hot water flows into hot water 5 bydelivery port 15, and hot water can be gone out exchange heat by theheat exchanger 14 in hot water 5, cold water in the capillary water pipe of heat exchanger transfers hot water to by circulation in hot water and flows out, and then heat is taken away, and cooled water is entered to cold water water tank 4 by coldwater cycling mechanism 13 again by cold water, or open thesecond break valve 8 hot water is collected into collector container, the heat collection that handle component distributes gets up to recycle.

embodiment 2

The present embodiment is close with embodiment 1, and difference is the connected mode of solar power generation assembly 2, and between the solar power generation assembly 2 of the present embodiment, for being connected in series, solar power generation assembly 2 quantity are 5-30 piece.

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 requirement of the present invention.

Claims (8)

1. a small-sized photo-thermal coupling solar power station, it is characterized in that: comprise shallow-water tank and solar power generation assembly, described solar power generation assembly is array and is arranged in described shallow-water tank, injected water guarantee that the upper surface of described solar power generation assembly is not immersed in water in described shallow-water tank, connects successively the inverter and the load that are placed in described shallow-water tank outside and forms distributed solar energy power station after the in parallel or series connection of each solar power generation assembly; The bottom of one side of described shallow-water tank has delivery port, another side of described shallow-water tank is provided with the first ball-cock assembly, described the first ball-cock assembly connects cold water water tank and controls the height of water level of shallow-water tank, in described cold water water tank, be provided with the second ball-cock assembly, described cold water water tank connects cold water cycling mechanism and oral siphon by the second ball-cock assembly, and the other end of described cold water cycling mechanism connects delivery port by the first break valve.

2. according to the small-sized photo-thermal coupling solar power station described in claim 1, it is characterized in that: between described the first break valve and described cold water cycling mechanism, be provided with hot water, in described hot water, heat exchanger is installed, described hot water connects hot water outlet by the second break valve, and described hot water is connected by the 3rd break valve with cold water cycling mechanism.

3. according to the small-sized photo-thermal coupling solar power station described in any one in claim 1 or 2, it is characterized in that: described the first ball-cock assembly is connected with described cold water water tank by the 4th break valve.

4. according to the small-sized photo-thermal coupling solar power station described in any one in claim 1 or 2, it is characterized in that: described oral siphon is provided with the 5th break valve.

5. according to the small-sized photo-thermal coupling solar power station described in any one in claim 1 or 2, it is characterized in that: described solar power generation component count is 5-30 piece.

6. according to the small-sized photo-thermal coupling solar power station described in any one in claim 1 or 2, it is characterized in that: described solar power generation assembly is filling junction box assembly.

7. according to the small-sized photo-thermal coupling solar power station described in any one in claim 1 or 2, it is characterized in that: described shallow-water tank adopts heat-insulating material to make.

8. according to the small-sized photo-thermal coupling solar power station described in any one in claim 1 or 2, it is characterized in that: on described hot water outlet, collector container is installed, collects shallow-water tank and flow out hot water.

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