Photovoltaic photo-thermal rainwater utilization multifunctional water tank

Abstract

The utility model discloses a photovoltaic photo-thermal rainwater utilization multifunctional water tank which comprises a tank body and is characterized in that a heating cavity is arranged at the upper position in the tank body, a rainwater storage cavity and a hot water storage cavity are arranged at the lower position in parallel at intervals, and the lower end of the rainwater storage cavity is communicated with the heating cavity through a water delivery pump and a water delivery pipeline. The lower end of the heating cavity is communicated with the hot water storage cavity through a temperature control valve, a hot water outlet used for being externally connected with a hot water output pipeline is formed in the lower end of the hot water storage cavity, a solar heat collection plate and a solar photovoltaic plate are arranged on the upper end face of the box body, and the lower surface of the solar heat collection plate is attached to the upper surface of the heating cavity. A water collecting structure is further arranged at the upper end of the box body and connected with the rainwater storage cavity through a water collecting pipe. According to the utility model, photovoltaic and photo-thermal energy can be absorbed and utilized, hot water supply can be realized by utilizing rainwater resources, photovoltaic and photo-thermal requirements can be adjusted and controlled, meanwhile, the photovoltaic panel can be better protected, and the service life of the photovoltaic panel can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of photovoltaic light heat utilization device technical field, specifically to a kind of photovoltaic light heat rainwater utilization multifunctional water tank. BACKGROUND

[0002] As a kind of green energy, compared with traditional fuel energy, solar energy has the advantages of never exhausted, clean and environmental protection etc..Combining solar energy utilization with building energy-saving technology can reduce energy consumption, reduce environmental pollution brought by energy consumption, and is an important way of building energy-saving.China's application of solar energy heating develops rapidly, and energy-saving effect is obvious.In the energy consumption structure of building, about 75% of energy is used for building heating and hot water supply.

[0003] Conventional solar energy utilization technology is generally directly using photovoltaic panel to absorb solar energy to generate electricity and hot water, which is restricted by water supply capacity of water pipe, and conventional solar energy utilization device cannot realize the utilization of rainwater resource.In addition, the existing solar energy utilization device is usually directly exposed to air for a long time, and the service life is short. UTILITY MODEL CONTENT

[0004] In view of the above deficiencies of prior art, the technical problem to be solved by the utility model is: how to provide a photovoltaic light heat rainwater utilization multifunctional water tank capable of absorbing and utilizing photovoltaic light heat energy and realizing hot water supply by using rainwater resource, and making it better protect photovoltaic panel and prolong its service life.

[0005] In order to solve the above technical problem, the utility model adopts the following technical scheme:

[0006] A kind of photovoltaic light heat rainwater utilization multifunctional water tank, including tank body, characterized by, heating cavity is arranged at upper position in tank body, rainwater storage cavity and hot water storage cavity are arranged at lower position and are arranged in parallel and are separated, rainwater storage cavity lower end is communicated with heating cavity by water pump and water pipeline, heating cavity lower end is communicated with hot water storage cavity by temperature control valve, hot water outlet for external hot water output pipeline is arranged at hot water storage cavity lower end, solar energy collector and solar photovoltaic panel are arranged on the upper end surface of the tank body, solar energy collector lower surface is arranged on the upper surface of heating cavity by pasting, the power output end of solar photovoltaic panel is connected with battery, battery and water pump are connected and are powered, water collecting structure is further arranged on the upper end of the tank body, and water collecting structure is connected with rainwater storage cavity by water collecting pipe.

[0007] Thus, the device is directly installed on the roof when in use. When it rains, rainwater is collected by the water collecting structure and gathered in the rainwater storage chamber. When the sun is shining, the solar photovoltaic panel collects solar energy to generate electricity and store it in the battery. The battery power supplies the water pump to work, pumping the stored rainwater into the heating chamber. The heating chamber relies on the solar heat collecting plate on the upper surface to collect solar heat to achieve heating. When the water temperature in the heating chamber is heated high enough, the temperature control valve automatically opens and inputs hot water into the hot water storage chamber for standby. After the hot water in the heating chamber is output, the water pump is used again to pump water from the rainwater storage chamber for continuous heating. In this way, the device can collect rainwater and heat it to supply hot water for the family. At the same time, the electricity generated by the solar photovoltaic panel is stored in the battery, which can also be used by the family, achieving the effect of utilizing photovoltaic and photothermal energy and utilizing rainwater resources to realize hot water supply.

[0008] Further, the bottom of the heating chamber is also provided with a water pressure sensor connected with the controller, and the controller is connected with and controls the water pump. In this way, the water pressure sensor can detect the water pressure in the heating chamber in real time. When the hot water in the heating chamber is output, the water pressure decreases, and the water pump can be controlled to start to supply water to the heating chamber, realizing automatic control.

[0009] Further, the hot water storage chamber is provided with a heat preservation layer around. In this way, the hot water storage chamber can better realize heat preservation.

[0010] Further, the hot water storage chamber is also provided with an electric auxiliary heating device connected with the battery. In this way, when the temperature of the hot water in the hot water storage chamber decreases, the electric auxiliary heating device can also be used to assist heating, ensuring that the temperature of the hot water is sufficient.

[0011] Further, the hot water storage chamber is also provided with a temperature probe connected with the electric auxiliary heating device and the controller respectively. In this way, the temperature in the hot water storage chamber can be conveniently and automatically detected, realizing automatic heat preservation control.

[0012] Further, the lower part of the box body is also provided with a tap water chamber connected with a tap water pipe at the water inlet end, and the lower end of the tap water chamber is connected with the water inlet pipe of the heating chamber through a pipe with a switch valve.

[0013] In this way, when the rainwater storage chamber is insufficient in storing rainwater, the switch valve of the tap water chamber can be opened to supply water to the heating chamber, ensuring the effect of hot water.

[0014] Further, the water collecting structure includes a circle of water collecting grooves around the upper surface of the box body. The lowest part of the bottom of the water collecting groove is provided with a water collecting pipe downwardly. A first filter screen is arranged at the inlet of the upper end of the water collecting pipe. The lower end of the water collecting pipe is provided with a sand discharge port communicating with the outside, and a sand discharge cover is arranged at the sand discharge port. A rainwater inlet pipe is bypass connected to the upper part of the water collecting pipe above the sand discharge port.

[0015] Thus, the rainwater gathered on the upper end of the box is collected into the water collecting groove, flows downward into the water collecting pipe after being filtered by the first filter screen, and the residual little sediment can be deposited at the lower end of the water collecting pipe, and the clean water overflows into the rainwater inlet pipe and flows into the rainwater storage tank for storage. After a period of time, the sediment discharge cover can be opened to discharge the sediment. Therefore, the device has the advantages of simple structure, reliable water collection, good filtering effect, etc.

[0016] Further, a second filter screen is arranged at the inlet of the rainwater inlet pipe. The filtering effect can be better achieved.

[0017] Further, a heat exchange structure extending into the heating cavity is fixedly connected to the lower surface of the solar heat collecting plate. In this way, the solar heat collecting plate can better heat the water in the heating cavity. In practice, the heat exchange structure can be a heat exchange protrusion made of a high-thermal-conductivity material (for example, ceramic), or a heat pipe device containing a flowing medium to improve the heat exchange efficiency.

[0018] Further, the solar heat collecting plate is installed at the two sides of the upper end of the box, and the solar photovoltaic panel is installed at the middle of the upper end of the box. This facilitates installation and arrangement.

[0019] Further, a rectangular installation groove is arranged downward at the middle of the upper end of the box, a telescopic electric cylinder is arranged vertically upward at the middle of the installation groove, a horizontal connecting head is arranged at the upper end of the telescopic electric cylinder, the solar photovoltaic panel is symmetrically arranged in two pieces and is hingedly installed on the connecting head, a rotating motor is further fixedly and drivingly connected to one end of the installation rotating shaft of the solar photovoltaic panel, the telescopic height of the telescopic electric cylinder is greater than the width of the solar photovoltaic panel, the width of the solar photovoltaic panel and the depth of the installation groove are matched so that the solar photovoltaic panel can fall into the installation groove after being folded, and the telescopic electric cylinder and the rotating motor are connected to the storage battery for power supply.

[0020] In this way, on cloudy, rainy days, and at night, etc., the solar photovoltaic panel can be folded and retracted into the installation groove to avoid wind and rain, and to achieve protection. When it is needed to work (for example, when the sunlight is strong during the day or when the hot water storage cavity is full of hot water, etc.), the telescopic electric cylinder can be controlled to extend upward, and then the solar photovoltaic panel can be controlled to rotate and unfold to collect solar energy. Therefore, the adjustment and control of the photovoltaic and photothermal demand are better achieved, and the protection effect of the photovoltaic panel is greatly improved.

[0021] Further, a water leakage pipe with a filter screen is arranged at the bottom of the installation groove and is communicated with the upper end of the rainwater storage cavity.

[0022] In this way, part of the rainwater flowing into the installation groove can also enter the rainwater storage cavity, avoiding water accumulation in the installation groove.

[0023] In summary, the utility model can absorb and utilize photovoltaic light heat energy and utilize rainwater resources to realize hot water supply, can realize the regulation and control to photovoltaic light heat demand, can better protect photovoltaic panel and prolong its service life simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the cross section structure schematic diagram of the utility model.

[0025] Figure 2 It is Figure 1 It is the structure schematic diagram of the separate solar photovoltaic panel after being folded up in the middle.

[0026] Figure 3 It is Figure 1 It is the plan view of the solar photovoltaic panel after being folded up in the middle. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail in combination with specific implementation and drawings.

[0028] Implementation: refer to Figures 1-3 As shown in the figure, a photovoltaic light heat rainwater utilization multifunctional water tank, including the box body 1, its feature lies in, the upper position of the inside of the box body 1 is provided with heating cavity 2, the lower position is provided with rainwater storage cavity 3 and hot water storage cavity 4 parallelly and separately, the lower end of rainwater storage cavity 3 is connected with heating cavity 2 through water pump 13 and water pipeline 14, the lower end of heating cavity 2 is connected with hot water storage cavity 4 through temperature control valve 5, the lower end of hot water storage cavity 4 is provided with hot water outlet 6 for external hot water output pipeline, the upper end surface of the box body 1 is provided with solar heat collection plate 7 and solar photovoltaic plate 8, the lower surface of solar heat collection plate 7 is attached to the upper surface of heating cavity 2, the power output end of solar photovoltaic plate 8 is connected with battery 10, battery 10 is connected with water pump and is powered, the upper end of the box body 1 is also provided with water collecting structure, and the water collecting structure is connected with rainwater storage cavity 3 through water collecting pipe 9.

[0029] In this way, the device is directly installed on the roof when in use, rainwater is collected and gathered in the rainwater storage cavity by the water collecting structure when it rains. Solar photovoltaic panels collect solar energy to generate electricity and store it in the battery when the sun is shining. The battery supplies power to the water pump to work, and the stored rainwater is pumped into the heating cavity. The heating cavity collects solar heat on the upper surface of the solar heat collection plate to achieve heating. When the water temperature in the heating cavity is high enough, the temperature control valve automatically opens and inputs hot water into the hot water storage cavity for standby. After the hot water in the heating cavity is output, the water pump is used again to pump water from the rainwater storage cavity for continuous heating. In this way, the device can collect and heat rainwater to supply domestic hot water. At the same time, the electric energy generated by the solar photovoltaic panel is stored in the battery, which can also be used by the family, achieving the effect of utilizing photovoltaic light heat energy and utilizing rainwater resources to realize hot water supply.

[0030] The temperature control valve can be a memory alloy temperature control valve.

[0031] The bottom of the heating cavity 2 is also provided with a water pressure sensor 11, which is connected to the controller 12, and the controller 12 is connected to and controls the water pump. In this way, the water pressure sensor can detect the water pressure in the heating cavity in real time. When the hot water in the heating cavity is output, the water pressure decreases, and the water pump can be controlled to supply water to the heating cavity, realizing automatic control.

[0032] The hot water storage cavity 4 is surrounded by a heat preservation layer 15. This can help the hot water storage cavity to better achieve heat preservation.

[0033] The hot water storage cavity 4 is also provided with an electric auxiliary heating device 16, which is connected to the battery 10. In this way, when the temperature of the hot water in the hot water storage cavity decreases, the electric auxiliary heating device can also be used to assist in heating, ensuring that the temperature of the hot water is sufficient.

[0034] The hot water storage cavity 4 is also provided with a temperature probe 17, which is connected to the controller 12. In this way, the temperature in the hot water storage cavity can be automatically detected, and automatic temperature control can be realized.

[0035] The lower part of the box 1 is also provided with a tap water cavity 18, the inlet of which is connected to the tap water pipe, and the lower end of the tap water cavity 18 is connected to the water inlet pipe 14 of the heating cavity through a pipe with a switch valve (not shown in the figure).

[0036] In this way, when the rainwater storage cavity is insufficient, the switch valve of the tap water cavity can be opened to supply water to the heating cavity, ensuring the effect of hot water.

[0037] The water collecting structure includes a circle of water collecting grooves 19 around the upper surface of the box, the lowest part of the groove bottom of the water collecting groove 19 is provided with a water collecting pipe 9, the upper end inlet of the water collecting pipe 9 is provided with a first filter screen 20, the lower end of the water collecting pipe 9 is provided with a sand discharge port 21 which is connected to the outside, and a sand discharge cover is arranged at the sand discharge port 21, and a rainwater inlet pipe 22 is bypass connected to the water collecting pipe above the sand discharge port 21 to the upper end of the rainwater storage tank.

[0038] In this way, the rainwater collected at the upper end of the box flows into the water collecting groove, and after being filtered by the first filter screen, it flows downward into the water collecting pipe, and a small amount of residual sediment can be deposited at the lower end of the water collecting pipe, and the clean water overflows into the rainwater inlet pipe and flows into the rainwater storage tank for storage. After a period of time, the sand discharge cover can be opened to discharge sand. Therefore, it has the advantages of simple structure, reliable water collection, good filtering effect, etc.

[0039] The second filter screen is arranged at the inlet of the rainwater inlet pipe. The filtering effect can be better.

[0040] Wherein, the lower surface of the solar heat collecting plate 7 is fixedly connected with a heat exchange structure 23 which extends into the heating cavity. In this way, the solar heat collecting plate can better heat the water in the heating cavity. In practice, the heat exchange structure can be a heat exchange protrusion made of high thermal conductivity material (e.g. ceramic), or a heat pipe device containing a flowing medium to improve heat exchange efficiency.

[0041] Wherein, the solar heat collecting plate 7 is installed on both sides of the upper end of the box 1, and the solar photovoltaic panel 8 is installed on the middle of the upper end of the box 1. This makes it easier to install and arrange.

[0042] Wherein, a rectangular installation slot 24 is arranged on the middle of the upper end of the box 1, and a telescopic cylinder 25 is arranged vertically upward in the middle of the installation slot 24. A horizontal connector 26 is arranged on the upper end of the telescopic cylinder 25. The solar photovoltaic panel 8 is symmetrically arranged in two pieces and is hingedly installed on the connector 26. The end of the installation shaft of the solar photovoltaic panel 8 is also fixedly and drivingly connected with a rotating motor 27. The telescopic height of the telescopic cylinder 25 is greater than the width of the solar photovoltaic panel 8. The width of the solar photovoltaic panel 8 and the depth of the installation slot 24 are matched so that the solar photovoltaic panel can be folded and dropped into the installation slot. The telescopic cylinder 25 and the rotating motor 27 are both connected with the storage battery 10 for power supply.

[0043] In this way, the solar photovoltaic panel can be folded and retracted into the installation slot on cloudy, rainy days and at night, etc. to avoid wind and rain and achieve protection. When it is needed to work (e.g. during the day when the sunlight is strong or when the hot water storage cavity is full of hot water, etc.), the telescopic cylinder can be controlled to extend upward, and the solar photovoltaic panel can be controlled to rotate and open to collect solar energy. Therefore, the adjustment and control of photovoltaic and photothermal demand are better achieved, and the protection effect of the photovoltaic panel is greatly improved.

[0044] Wherein, the bottom of the installation slot 24 is provided with a water leakage pipe 28 with a filter screen which is in communication with the upper end of the rainwater storage cavity 3.

[0045] In this way, part of the rainwater flowing into the installation slot can also enter the rainwater storage cavity to avoid water accumulation in the installation slot.

Claims

1. A photovoltaic photo-thermal rainwater utilization multifunctional water tank, comprising a tank body, characterized in that, The upper part of the box body is provided with a heating cavity, and the lower part is provided with a rainwater storage cavity and a hot water storage cavity in parallel and spaced apart, the lower end of the rainwater storage cavity is communicated with the heating cavity through a water conveying pump and a water conveying pipeline, the lower end of the heating cavity is communicated with the hot water storage cavity through a temperature control valve, the lower end of the hot water storage cavity is provided with a hot water outlet for externally connecting a hot water output pipeline, the upper end of the box body is provided with a solar heat collecting plate and a solar photovoltaic panel, the lower surface of the solar heat collecting plate is attached to the upper surface of the heating cavity, the power output end of the solar photovoltaic panel is connected with a storage battery, the storage battery is connected with the water conveying pump and supplies power, and the upper end of the box body is further provided with a water collecting structure which is connected with the rainwater storage cavity through a water collecting pipe.

2. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1, characterized in that, The bottom of the heating cavity is further provided with a water pressure sensor connected with a controller, and the controller is connected with the water conveying pump and controls the water conveying pump.

3. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1 or 2, characterized in that, The hot water storage cavity is provided with a heat preservation layer around the hot water storage cavity.

4. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1 or 2, characterized in that, The hot water storage cavity is further provided with an electric auxiliary heating device connected with the storage battery.

5. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1 or 2, characterized in that, The hot water storage cavity is further provided with a temperature probe connected with the electric auxiliary heating device and the controller.

6. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1, characterized in that, The lower part of the box body is further provided with a tap water cavity, the water inlet end of the tap water cavity is connected with a tap water pipe, and the lower end of the tap water cavity is connected with the water conveying pipeline into the heating cavity through a pipeline with a switch valve.

7. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1, characterized in that, The water collecting structure comprises a ring of water collecting grooves around the upper surface of the box body, the lowest part of the bottom of the water collecting groove is provided with a water collecting pipe, the inlet of the upper end of the water collecting pipe is provided with a first filter screen, the lower end of the water collecting pipe is provided with a sand discharge opening and is connected with the outside, a sand discharge cover is arranged at the sand discharge opening, and a rainwater inlet pipe is bypass connected to the upper end of the rainwater storage tank at the position above the sand discharge opening of the water collecting pipe.

8. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 7, characterized in that, The inlet of the rainwater inlet pipe is provided with a second filter screen.

9. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1, characterized in that, The lower surface of the solar heat collecting plate is fixedly connected with a heat exchange structure which extends into the heating cavity.

10. The photovoltaic photo-thermal rainwater utilization multifunctional water tank according to claim 1, characterized in that, The solar heat collecting plate is installed on both sides of the upper end of the box body, and the solar photovoltaic panel is installed on the middle part of the upper end of the box body. The middle part of the upper end of the box body is provided with a rectangular mounting groove, a vertical telescopic cylinder is arranged at the middle part of the mounting groove, a horizontal connector is arranged at the upper end of the telescopic cylinder, the solar photovoltaic panel is symmetrically arranged and is hingedly connected to the connector, one end of the mounting shaft of the solar photovoltaic panel is further fixedly connected and drivingly connected with a rotating motor, the telescopic height of the telescopic cylinder is greater than the width of the solar photovoltaic panel, the width of the solar photovoltaic panel matches the depth of the mounting groove, so that the solar photovoltaic panel can be folded and fallen into the mounting groove after being rotated, and the telescopic cylinder and the rotating motor are connected with the storage battery for power supply. The bottom of the mounting groove is provided with a water leakage pipe with a filter screen which is communicated with the upper end of the rainwater storage cavity.

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