A photovoltaic and rainwater comprehensive utilization system suitable for buildings

Abstract

The present invention relates to a photovoltaic and rainwater comprehensive utilization system suitable for buildings, comprising a building body, a photovoltaic power generation panel is arranged on the roof of the building body, and a rainwater collection device and a cooling device, wherein the rainwater collection device comprises a first water collection trough, a first water collection tank, and a plurality of second water collection tanks, wherein the first water collection trough is arranged on the lower side of the photovoltaic power generation panel, the first water collection tank is arranged below the photovoltaic power generation panel, the second water collection tanks are arranged on each floor of the building body, the first water collection trough, the first water collection tank, and the second water collection tanks are connected in sequence through a water inlet pipe; the cooling device comprises a water pump and a spray head, wherein the water pump is connected to the first water collection tank, the spray head is connected to the water pump, and the spray head is arranged on the higher side of the photovoltaic power generation panel. The present invention has a reasonable structure, scientifically combines photovoltaic power generation with rainwater collection, and realizes energy conservation and emission reduction.

Description

Technical Field

[0001] The invention relates to the technical field of energy resource utilization, and in particular to a photovoltaic and rainwater comprehensive utilization system suitable for buildings. Background Art

[0002] Building energy conservation refers to reducing energy consumption as much as possible under the conditions of meeting the same needs or achieving the same purpose during the production of building materials, construction of houses and structures, and use. Building energy conservation is an important part of implementing the sustainable development strategy, a major trend in the development of world architecture, and an important measure to improve people's living environment and improve living comfort. It requires "improving the energy utilization rate in buildings", using energy reasonably and continuously improving energy utilization efficiency under the condition of ensuring the improvement of building comfort.

[0003] Photovoltaic energy, as a clean and renewable energy source, is widely used in the field of building energy conservation. Photovoltaic modules generate heat due to sunlight and their own power generation. Generally speaking, the output power will decrease by 0.3~0.5% for every degree increase in temperature. On the basis of the continuous improvement of battery production technology, it is a technical problem that technicians in this field need to solve urgently by lowering the operating temperature of the modules and improving the power generation capacity of the modules and photovoltaic systems.

[0004] The utilization of rainwater resources is also an important topic in the field of building energy conservation. The existing rainwater collection system cannot meet the needs of energy conservation and environmental protection due to its unreasonable structure and low rainwater resource utilization rate. Summary of the invention

[0005] The purpose of the present invention is to provide a photovoltaic and rainwater comprehensive utilization system suitable for buildings, which has a reasonable structure and scientifically combines photovoltaic power generation with rainwater collection to achieve energy conservation and emission reduction.

[0006] A photovoltaic and rainwater comprehensive utilization system suitable for buildings, comprising a building body, a photovoltaic power generation panel is arranged on the roof of the building body, and also comprising a rainwater collection device and a cooling device, the rainwater collection device comprising a first water collection trough, a first water collection tank, and a plurality of second water collection tanks, the first water collection trough is arranged on the lower side of the photovoltaic power generation panel, the first water collection tank is arranged below the photovoltaic power generation panel, the second water collection tanks are respectively arranged on each floor of the building body, the first water collection trough, the first water collection tank, and the second water collection tanks are connected in sequence through a water inlet pipe; the cooling device comprises a water pump and a sprinkler head, the water pump is connected to the first water collection tank, the sprinkler head is connected to the water pump, and the sprinkler head is arranged on the higher side of the photovoltaic power generation panel.

[0007] Furthermore, the upper ends of the first water collecting tank and the second water collecting tank are both provided with water inlets, and the outer side of the water inlet is provided with a flow guide structure, and the flow guide structure includes a main pipe, a branch pipe and a partition. The water inlet is arranged on one side of the main pipe, and the partition is arranged below the water inlet and blocks the main pipe. One end of the branch pipe is arranged above the water inlet and connected to the main pipe, and the other end of the branch pipe is connected to the main pipe below the partition after being bent.

[0008] Furthermore, a float valve is provided on the inner side of the water inlet.

[0009] Furthermore, a plurality of second water collection grooves are provided on the wall surface of the building body, and the second water collection grooves are connected to the main pipe.

[0010] Furthermore, a temperature sensor is provided on the photovoltaic power generation panel, and the temperature sensor is electrically connected to the water pump.

[0011] Compared with the prior art, the beneficial effects of the present invention are: by setting up a rainwater collection device to collect rainwater, and by using the collected rainwater for cooling the photovoltaic panels through the cooling device, the power generation efficiency of the photovoltaic panels is ensured, the service life thereof is extended, and the purpose of economy and environmental protection is achieved. By setting up a diversion structure in the first water collecting tank and the second water collecting tank, and setting up a float valve in the water inlet, the rainwater is poured into the second water collecting tank after filling up the first water collecting tank, so as to give priority to the water consumption of the cooling device. And the second water collecting tank is filled with water from the upper layer to the lower layer in sequence, so as to give priority to the water storage of the upper layers of the building, reduce the energy consumption required for pumping domestic water to the upper layers, and further achieve the purpose of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the photovoltaic and rainwater comprehensive utilization system suitable for buildings of the present invention.

[0013] Figure 2 It is a structural schematic diagram of the diversion structure of the photovoltaic and rainwater comprehensive utilization system suitable for buildings of the present invention. DETAILED DESCRIPTION

[0014] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0015] like Figure 1 and Figure 2As shown, in a preferred embodiment, the photovoltaic and rainwater comprehensive utilization system for buildings of the present invention mainly includes a building body 1, a photovoltaic power generation panel 2, a rainwater collection device, and a cooling device. The photovoltaic power generation panel 2 is arranged on the roof of the building body 1, and is arranged in an inclined manner to collect solar energy and supply power to the building body 1.

[0016] The rainwater collection device includes a first water collection trough 3, a first water collection tank 4, and a plurality of second water collection tanks 5. The first water collection trough 3 is arranged at the lower end of the photovoltaic power generation panel 2, and is used to collect rainwater flowing down from the surface of the photovoltaic power generation panel 2. The first water collection tank 4 is arranged below the photovoltaic power generation panel 2, and the first water collection trough 3 is connected to the first water collection tank 4 through a water inlet pipe. The second water collection tank 5 is arranged on each floor of the building body 1, and is used to store rainwater to provide domestic water.

[0017] The first water collecting tank 4 and the second water collecting tank 5 are both provided with a water inlet 6 near the upper end, and a diversion structure is provided outside the water inlet 6, which includes a main pipe 7, a branch pipe 8, and a partition 9. The main pipe 7 is vertically arranged, and the water inlet 6 is connected to one side of the main pipe 7. The partition 9 is arranged in the main pipe 7 near the lower end of the water inlet 6 and shields the main pipe 7. One end of the branch pipe 8 is arranged above the water inlet 6 and connected to the main pipe 7, and the other end of the branch pipe 8 is connected to the main pipe 7 below the partition 9 after being bent. A float valve 10 is provided inside the water inlet 6. In specific implementation, the rainwater collected by the first water collecting tank 3 enters the first water collecting tank 4 through the main pipe 7. When the first water collecting tank 4 is full, the float valve 10 moves up and closes the water inlet 6, and the rainwater flows from the branch pipe 8 into the next section of the main pipe 7, and fills the second water collecting tank 5 from the upper layer to the lower layer in sequence. This design can ensure that the first water collecting tank 4 is filled first, and the water supply of the cooling device is guaranteed. Then fill up the second water collecting tank 5 of the upper layer to the second water collecting tank 5 of the lower layer in turn, so as to ensure the priority of water storage in the upper layer, thereby reducing the energy consumption required for pumping water to the upper layer and achieving the purpose of energy saving and emission reduction.

[0018] In order to further improve the rainwater collection efficiency, a plurality of second water collection grooves 11 can be arranged on the wall of the building body 1, and the second water collection grooves 11 are connected to the main pipe 7, so as to collect rainwater on the wall and improve the water collection efficiency.

[0019] The cooling device includes a water pump 12 and a spray head 13. The water pump 12 is connected to the first water collecting tank 4, and the spray head 13 is connected to the water pump 12. A temperature sensor not shown in the figure is provided on the photovoltaic power generation panel 2, and the temperature sensor is connected to the water pump 12. When the temperature of the photovoltaic power generation panel 2 is too high, the water pump 12 starts to pump the water in the first water collecting tank 4 to the spray head 13 to spray the surface of the photovoltaic power generation panel 2, thereby achieving cooling. The unevaporated water can flow along the surface of the photovoltaic power generation panel 2 to the first water collecting tank 3 and then enter the first water collecting tank 4, so as to realize the recycling of water and further achieve energy saving and environmental protection.

[0020] In actual implementation, a filtering device may be provided in the second water collecting tank 5 to filter rainwater so that it can be used for domestic water. The filtering method may adopt existing technology and will not be elaborated here.

[0021] The present invention has a reasonable structure and scientifically combines photovoltaic energy with rainwater resources. On the one hand, rainwater can be used to cool the photovoltaic panels 2 to ensure their power generation efficiency and extend their service life; on the other hand, rainwater can be effectively collected to save water resources and reduce the energy consumption of pumping domestic water, thereby achieving energy saving and environmental protection.

[0022] Although the present invention is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A photovoltaic and rainwater comprehensive utilization system suitable for a building, comprising a building body, a photovoltaic power generation panel is arranged on the roof of the building body, characterized in that: It also includes a rainwater collection device and a cooling device, wherein the rainwater collection device includes a first water collection trough, a first water collection tank, and a plurality of second water collection tanks, wherein the first water collection trough is arranged at a lower side of the photovoltaic power generation panel, the first water collection tank is arranged below the photovoltaic power generation panel, the second water collection tanks are arranged at each floor of the building body, the first water collection trough is connected to the first water collection tank through a water inlet pipe, the cooling device includes a water pump and a sprinkler head, the water pump is connected to the first water collection tank, the sprinkler head is connected to the water pump, and the sprinkler head is arranged at a higher side of the photovoltaic power generation panel; The upper ends of the first water collecting tank and the second water collecting tank are both provided with water inlets, and the outer side of the water inlet is provided with a guide structure, and the guide structure includes a main pipe, a branch pipe and a partition. The water inlet is arranged on one side of the main pipe, and the partition is arranged below the water inlet and blocks the main pipe. One end of the branch pipe is arranged above the water inlet and connected to the main pipe, and the other end of the branch pipe is connected to the main pipe below the partition after being bent. A float valve is provided on the inner side of the water inlet, and a plurality of second water collecting grooves are provided on the wall of the building body, and the second water collecting grooves are connected to the main pipe. Rainwater collected by the first water collecting groove enters the first water collecting tank through the main pipe. When the first water collecting tank is full, the float valve moves up and closes the water inlet, and the rainwater flows from the branch pipe into the next section of the main pipe, and fills the second water collecting tank from the upper layer to the lower layer in sequence.

2. The photovoltaic and rainwater comprehensive utilization system suitable for buildings according to claim 1 is characterized in that: The photovoltaic power generation panel is provided with a temperature sensor, and the temperature sensor is electrically connected to the water pump.

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