阅读说明：本技术 基于海绵城市的cpc聚光光伏节能平屋顶 (CPC concentrating photovoltaic energy-saving flat roof based on sponge city ) 是由 张阳 于 2019-10-18 设计创作，主要内容包括：本发明公开了基于海绵城市的CPC聚光光伏节能平屋顶,包括倾斜向上设置的平板,所述平板侧壁均布有多组开口向外的CPC聚光器,所述平板的上端嵌设有多个位于CPC聚光器内的光伏板,所述平板侧壁上位于每个光伏板的下方处均开设有储液腔,多组所述CPC聚光器上均安装有对光伏板和CPC聚光器表面灰尘进行清理的清理装置。本发明通过设置在储液腔内的蒸发液,在蒸发液受热蒸发后使得蒸汽进入滑塞腔内,推动磁性滑塞向下滑动,进而带动清洁板下移,对光伏板和CPC聚光器上的灰尘进行清理,通过设置滑塞腔与空腔之间连通出水管,在磁性滑塞下滑时,会将活动腔内的水通过出水管进入空腔内,通过喷水孔对光伏板表面进行洒水降温清洁。(The invention discloses a CPC concentrating photovoltaic energy-saving flat roof based on a sponge city, which comprises a flat plate which is obliquely and upwards arranged, wherein a plurality of groups of CPC concentrators with outward openings are uniformly distributed on the side wall of the flat plate, a plurality of photovoltaic plates positioned in the CPC concentrators are embedded at the upper end of the flat plate, liquid storage cavities are respectively formed in the positions, below each photovoltaic plate, on the side wall of the flat plate, and cleaning devices for cleaning dust on the surfaces of the photovoltaic plates and the CPC concentrators are respectively installed on the plurality of groups of CPC concentrators. According to the invention, by means of the evaporating liquid arranged in the liquid storage cavity, after the evaporating liquid is heated and evaporated, steam enters the sliding plug cavity, the magnetic sliding plug is pushed to slide downwards, so that the cleaning plate is driven to move downwards, dust on the photovoltaic plate and the CPC condenser is cleaned, and by arranging the water outlet pipe communicated between the sliding plug cavity and the cavity, when the magnetic sliding plug slides downwards, water in the movable cavity enters the cavity through the water outlet pipe, and the surface of the photovoltaic plate is sprayed with water, cooled and cleaned through the water spray hole.)

1. Energy-conserving flat roof of CPC spotlight photovoltaic based on sponge city, including slope upwards the flat board (1) that sets up, dull and stereotyped (1) lateral wall equipartition has outside CPC spotlight ware (3) of multiunit opening, the upper end of flat board (1) is inlayed and is equipped with a plurality of photovoltaic boards (2) that are located CPC spotlight ware (3), dull and stereotyped (1) lateral wall fixedly connected with storage water tank (4), its characterized in that, the below department that is located every photovoltaic board (2) on the flat board (1) lateral wall has all seted up stock solution chamber (5), stock solution chamber (5) intussuseption is filled with evaporating liquid (6), multiunit CPC spotlight ware (3) lateral wall has all seted up sliding plug chamber (10), sliding plug chamber (10) inner seal sliding connection has magnetism sliding plug (11), sliding plug chamber (10) inner wall passes through intake pipe (8) and rather than stock solution chamber (5) inner wall intercommunication of organizing, the one end inner wall that intake pipe (8) were kept away from in sliding plug chamber (10) is through absorbing water pipe (16) and storage water tank (4) lateral wall intercommunication, it all allows water to flow into first check valve (17) in sliding plug chamber (10) from storage water tank (4) to absorb water to install in pipe (16), the multiunit all install on CPC spotlight ware (3) and carry out the cleaning device who clears up photovoltaic board (2) and CPC spotlight ware (3) surface dust.

2. The sponge city-based CPC concentrated photovoltaic energy-saving flat roof of claim 1, characterized in that said cleaning device comprises a cleaning plate (9), said cleaning plate (9) being curved in proximity to the photovoltaic panel (2) and to the CPC concentrator (3) surface, a rubber scraper is fixedly connected on the cleaning plate (9), a cavity (12) is arranged on the side wall of the cleaning plate (9) opposite to the photovoltaic plate (2), the inner wall of the cavity (12) is communicated with the inner wall of the sliding plug cavity (10) through a water outlet pipe (14), a second one-way valve (15) which only allows water to flow into the cavity (12) from the sliding plug cavity (10) is arranged in the water outlet pipe (14), the side wall of the cleaning plate (9) which is positioned right above the magnetic sliding plug (11) is embedded with a magnet (18) which is opposite to and attracted with the magnetic sliding plug (11), and the side wall of the cleaning plate (9) is uniformly provided with water spray holes (13) communicated with the cavity (12).

3. The CPC concentrating photovoltaic energy-saving flat roof based on the sponge city according to claim 1, characterized in that a plurality of radiating fins (7) are uniformly and fixedly connected to the inner wall of the liquid storage cavity (5), and one end of each radiating fin (7) is fixedly connected with the lower end of the photovoltaic panel (2).

Technical Field

The invention relates to the technical field of sponge city construction, in particular to a CPC concentrating photovoltaic energy-saving flat roof based on a sponge city.

Background

Sponge city is a new generation city rain and flood management concept, means the city can be like the sponge, absorbs water, retaining, infiltration, water purification during rainy, releases the water of depositing and utilizes when needing, realizes that the rainwater freely migrates in the city, and the energy-conserving roof of water-collecting type CPC spotlight photovoltaic can be changed into oneself through collecting the rainwater, preheats domestic water, and resources are saved can carry out the efficient collection to the rainwater in sponge city, realizes the high-efficient utilization of building integration.

The existing rain-collecting CPC concentrating photovoltaic energy-saving flat roof can enable the concentrating multiple to reach 2-6 times by using a CPC concentrator as described in the invention patent of 'rain-collecting CPC concentrating photovoltaic energy-saving flat roof' with the application number of '201710176044.3', can improve the solar energy utilization efficiency and reduce the number of photovoltaic cells, and can collect rainwater in rainy days, but as the illumination intensity temperature received by a photovoltaic panel is higher, the influence of high temperature on a power generation assembly is larger, and the influence on an inverter is larger, so that the power generation efficiency of the photovoltaic panel is reduced, and the concentrating multiple of sunlight by the CPC concentrator reaches 2-6 times, so that the temperature of the surface of the photovoltaic panel is increased in geometric times, the invention patent does not perform cooling treatment on the photovoltaic panel, so that the power generation efficiency of the photovoltaic panel at high temperature is reduced, and the service life of the power generation assembly is shortened, the long-term use of the photovoltaic panel is not facilitated;

in addition, because the CPC concentrator is gathered sunshine and is shone the photovoltaic board, gather the dust when many on CPC concentrator surface, the dust is stronger to the adsorption affinity of sunshine, it is relatively poor to make the CPC concentrator to the gathering ability of sunshine, influence the generating efficiency of photovoltaic board, in addition, gather when many on the photovoltaic board, the local temperature that can make the heating element on the photovoltaic board under strong sunshine shines is uneven, make to produce the hot spot effect on the photovoltaic board, also can shorten the life-span of photovoltaic board when influencing generating efficiency.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a CPC concentrating photovoltaic energy-saving flat roof based on a sponge city.

In order to achieve the purpose, the invention adopts the following technical scheme:

a CPC concentrating photovoltaic energy-saving flat roof based on a sponge city comprises a flat plate which is obliquely and upwards arranged, a plurality of groups of CPC condensers with outward openings are uniformly distributed on the side wall of the flat plate, a plurality of photovoltaic plates positioned in the CPC condensers are embedded at the upper end of the flat plate, the side wall of the flat plate is fixedly connected with a water storage tank, a liquid storage cavity is arranged at the position below each photovoltaic plate on the side wall of the flat plate, evaporating liquid is filled in the liquid storage cavity, a plurality of CPC condenser side walls are provided with sliding plug cavities, the inner wall of the sliding plug cavity is communicated with the inner wall of the liquid storage cavity in the same group through an air inlet pipe, the one end inner wall that the intake pipe was kept away from in the sliding plug chamber is through inhaling water pipe and storage water tank lateral wall intercommunication, it all allows water to flow into the first check valve in the sliding plug intracavity from the storage water tank to inhale to install intraductally, the multiunit all install the cleaning device who clears up photovoltaic board and CPC concentrator surface dust on the CPC concentrator.

Preferably, cleaning device is including cleaning plate, cleaning plate bends to press close to with photovoltaic board and CPC spotlight ware surface mutually, fixedly connected with rubber scraper on the cleaning plate, cleaning plate and photovoltaic board just right lateral wall have seted up the cavity, the cavity inner wall passes through outlet pipe and sliding plug intracavity wall intercommunication, install in the outlet pipe and only allow water to flow into the second check valve in the cavity from the sliding plug chamber, the cleaning plate is located the magnetism sliding plug and inlays on the lateral wall directly over the magnet that is equipped with and attracts mutually with magnetism sliding plug opposite sex, the hole for water spraying with the cavity intercommunication is seted up to cleaning plate lateral wall equipartition.

Preferably, the inner wall of the liquid storage cavity is uniformly and fixedly connected with a plurality of radiating fins, and one ends of the radiating fins are fixedly connected with the lower end of the photovoltaic panel.

The invention has the following beneficial effects:

1. the heat radiating fins fixedly connected with the side walls of the photovoltaic panel can quickly conduct heat of the photovoltaic panel to the liquid storage cavity in first time, so that the evaporated liquid can absorb the heat of the photovoltaic panel, the evaporated liquid is prevented from being quickly evaporated when the temperature of the photovoltaic panel is too high, and a power generation assembly in the photovoltaic panel is effectively protected;

2. by arranging the evaporating liquid filled in the liquid storage cavity, after the evaporating liquid is heated and evaporated, steam enters the sliding plug cavity, the magnetic sliding plug is pushed to slide downwards, and the magnet attracted oppositely to the magnetic sliding plug is driven to move downwards synchronously, so that the cleaning plate cleans dust on the photovoltaic panel and the CPC condenser, the phenomenon that the dust on the CPC condenser is accumulated too much to influence the sunlight is avoided, meanwhile, the dust on the photovoltaic panel is also avoided from being accumulated, the hot spot effect is avoided, and the service life of the photovoltaic panel is prolonged;

3. the water outlet pipe is communicated between the sliding plug cavity and the cavity, so that when the magnetic sliding plug slides downwards, water in the movable cavity enters the cavity through the water outlet pipe, and the surface of the photovoltaic panel is cooled through the water spraying hole, so that the problem that the power generation efficiency of the photovoltaic panel is influenced due to overhigh temperature of the surface of the photovoltaic panel is avoided, and meanwhile, the problem that electronic elements in the photovoltaic panel are rapidly aged due to overhigh temperature can be solved;

4. when the temperature reduces at night, the evaporating liquid is no longer heated, the steam temperature reduces and begins the liquefaction, produce the negative pressure in the stock solution intracavity, the magnetism sliding plug shifts up under the atmospheric pressure effect to make cleaning plate automatic re-setting, the dust of accumulating night on the photovoltaic board that can be by oneself again when the day clears up, need not artificial intervention, the effectual production of hot spot effect on having avoided the photovoltaic board, and the evaporating liquid can absorb the photovoltaic board heat once more, guarantees the continuous use of device.

Drawings

Fig. 1 is a schematic structural diagram of a CPC concentrating photovoltaic energy-saving flat roof based on a sponge city, which is provided by the invention;

fig. 2 is a schematic side sectional structural view of a CPC concentrating photovoltaic energy-saving flat roof based on a sponge city.

In the figure: the solar photovoltaic water heater comprises a flat plate 1, a photovoltaic plate 2, a CPC condenser 3, a water storage tank 4, a liquid storage cavity 5, an evaporation liquid 6, a heat radiating fin 7, an air inlet pipe 8, a cleaning plate 9, a sliding plug cavity 10, a magnetic sliding plug 11, a cavity 12, a water spray hole 13, a water outlet pipe 14, a second check valve 15, a water suction pipe 16, a first check valve 17 and a magnet 18.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-2, a CPC concentrating photovoltaic energy-saving flat roof based on a sponge city comprises a flat plate 1 which is obliquely and upwardly arranged, a plurality of groups of CPC concentrators 3 with outward openings are uniformly distributed on the side wall of the flat plate 1, a reflective coating is coated on the surface of each CPC concentrator 3 and can increase the reflection efficiency of sunlight, so that the sunlight can be accumulated to the maximum extent, the power generation efficiency of a photovoltaic panel 2 is increased, a plurality of photovoltaic panels 2 positioned in the CPC concentrators 3 are embedded in the side wall of the flat plate 1, a water storage tank 4 is fixedly connected to the side wall of the flat plate 1, a liquid storage chamber 5 is arranged on the side wall of the flat plate 1 and positioned below each photovoltaic panel 2, a plurality of radiating fins 7 are uniformly distributed on the inner wall of the liquid storage chamber 5, one ends of the radiating fins 7 are fixedly connected with the lower end of the photovoltaic panel 2, the radiating fins 7 are made of copper, the, the power generation assembly in the photovoltaic panel 2 can be protected, the melting point of copper is high, materials are easy to obtain, an evaporated liquid 6 is arranged in the liquid storage cavity 5, the evaporated liquid 6 is an ethanol solution, the boiling point of the ethanol solution is 78 ℃, heat of the photovoltaic panel 2 can be well absorbed, the power generation assembly in the photovoltaic panel 2 is protected, and the power generation efficiency of the photovoltaic panel 2 is improved;

the side walls of the CPC condensers 3 are provided with a sliding plug cavity 10, a magnetic sliding plug 11 is connected in the sliding plug cavity 10 in a sealing sliding manner, the sliding plug cavity 10 is communicated with the liquid storage cavities 5 in the same group through an air inlet pipe 8, one end, far away from the air inlet pipe 8, of the sliding plug cavity 10 is communicated with the water storage tank 4 through a water suction pipe 16, a first one-way valve 17 which only allows water to flow into the sliding plug cavity 10 from the water storage tank 4 is installed in the water suction pipe 16 and can suck the water in the water storage tank 4 into the sliding plug cavity 10 for storage, when the evaporated liquid 6 in the liquid storage cavity 5 is heated in the daytime, the evaporated liquid 6 is evaporated and changed from liquid to gas, the volume is changed greatly, the gas enters the sliding plug cavity 10 to push the magnetic sliding plug 11 to move downwards, when the evaporated liquid 6 is not heated at night, at the moment, the steam in the liquid storage cavity 5 and the sliding plug cavity 10 is gradually liquefied, so that negative pressure exists in the liquid storage cavity 5, and the magnetic, the evaporation liquid 6 in the sliding plug cavity 10 is extruded to flow into the liquid storage cavity 5, and the distance between the air inlet pipe 8 and the sliding plug cavity 10 is short, so that the evaporation liquid 6 in the sliding plug cavity 10 is extruded to flow into the liquid storage cavity 5, the recovery of the evaporation liquid 6 is completed, and the use for the next time is facilitated.

The cleaning devices for cleaning dust on the surfaces of the photovoltaic panel 2 and the CPC condenser 3 are respectively arranged on the plurality of groups of CPC condensers 3, each cleaning device comprises a cleaning plate 9, each cleaning plate 9 is bent and is close to the surfaces of the photovoltaic panel 2 and the CPC condenser 3, a rubber scraper is fixedly connected to each cleaning plate 9, each rubber scraper can clean the dust on the photovoltaic panel 2 and the CPC condenser 3, and when the photovoltaic panel 2 and the CPC condenser 3 are sprayed, cooled and cleaned, water on the photovoltaic panel 2 and the CPC condenser 3 can be completely scraped, so that the moisture is prevented from remaining on the CPC condenser 3, the condensation efficiency on the CPC condenser 3 is poor, and the water is prevented from remaining behind the surface of the photovoltaic panel 2 and evaporating under the irradiation of sunlight to form light spots, so that a hot spot effect is generated, a cavity 12 is formed in the side wall right opposite to the photovoltaic panel 9 and the photovoltaic panel 2, and the cavity 12 is communicated with the sliding plug cavity 10 through a water outlet pipe 14, install in the outlet pipe 14 and only allow water to flow into the second check valve 15 in the cavity 12 from sliding plug chamber 10, when magnetism sliding plug 11 moves down, can make the water in the sliding plug chamber 10 get into in the cavity 12 through outlet pipe 14, it is equipped with the magnet 18 that attracts mutually with magnetism sliding plug 11 opposite sex to inlay on the lateral wall that cleaning plate 9 is located magnetism sliding plug 11 directly over, cleaning plate 9 lateral wall all is equipped with the hole for water spraying 13 with cavity 12 intercommunication, the hole for water spraying 13 blowout can be followed to the water in the cavity 12, carry out watering cooling clearance to photovoltaic board 2 and CPC spotlight ware 3 surface.

Further, the magnetic sliding plug 11 and the magnet 18 are both made of neodymium magnets, the neodymium magnets have high temperature resistance, the magnetism of the magnetic sliding plug 11 and the magnet 18 can be prevented from weakening at high temperature, and the attractive force between the magnetic sliding plug 11 and the magnet 18 is reduced, in addition, the magnetic force of the neodymium magnets is strong, so that the magnetic force between the magnetic sliding plug 11 and the magnet 18 is stronger, and the magnetic isolating layers are fixedly connected to the side walls of the magnetic sliding plug 11 and the magnet 18, so that the magnetic force on the peripheral sides of the magnetic sliding plug 11 and the magnet 18 cannot be transmitted outwards, the magnetic sliding plug 11 and the magnet 18 can only be attracted through the end magnetic force, and the influence of the magnetic force on the magnetic sliding plug 11 and the magnet 18 by the magnetic force on the peripheral sides is avoided.

In the invention, in the daytime, the CPC condenser 3 and the reflective paint thereon can collect sunlight, the collected sunlight irradiates on the photovoltaic panel 2, at the moment, the temperature on the surface of the photovoltaic panel 2 can rise rapidly, the heat radiating fins 7 can transmit the temperature on the surface of the photovoltaic panel 2 to the evaporating liquid 6 at the first time, the evaporating liquid 6 can absorb the heat on the photovoltaic panel 2, so that the evaporating liquid 6 is heated and evaporated, and the evaporated steam enters the sliding plug cavity 10 through the air inlet pipe 8, so that the air pressure in the sliding plug cavity 10 is increased, thereby pushing the magnetic sliding plug 11 to move downwards, driving the magnet 18 to move downwards, so that the cleaning plate 9 cleans dust on the surfaces of the photovoltaic panel 2 and the CPC condenser 3, meanwhile, as the magnetic sliding plug 11 gradually moves downwards, water in the sliding plug cavity 10 is squeezed into the cavity 12 through the water outlet pipe 14, and the surfaces of the photovoltaic panel 2 and the CPC condenser 3 are sprayed with water, cooled and cleaned through the water spraying holes 13.

At night, photovoltaic board 2 is no longer heated, and the temperature of evaporating liquid 6 can drop this moment and make steam liquefy gradually, thereby make to have the negative pressure in the stock solution chamber 5, make magnetism sliding plug 11 get back to the normal position under the effect of pressure, drive clean board 9 simultaneously and get back to the normal position, and move up the in-process at magnetism sliding plug 11, can inhale the water in the storage water tank 4 in sliding plug chamber 10 through the pipe 16 that absorbs water, prepare for next clearance to photovoltaic board 2 and CPC spotlight ware 3.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.