Solar energy and thermoelectric device cooperative power supply auxiliary illumination photocatalysis sewage treatment device

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device with solar energy and thermoelectric device collaborative power supply and auxiliary illumination photocatalysis, which comprises solar panels, a storage battery, a thermoelectric device, a photocatalysis reaction tank, a sewage input device and a sewage output device, the solar panel is connected with the storage battery, solar energy, thermoelectric device power generation and storage battery energy storage are cooperatively used for power supply, and under the condition that external power supply is not needed, full-automatic organic sewage degradation with multiple functions of organic sewage degradation through auxiliary illumination photocatalytic reaction, automatic sewage injection, automatic sewage discharge, automatic sewage dissolved oxygen concentration measurement and the like is achieved. The thermoelectric device plays a role in power generation and also plays a role in cooling, and the device can realize automatic photocatalytic degradation of organic sewage without external power supply, so that the energy consumption is reduced, and the sewage treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment device that uses solar energy and thermoelectric devices to power a combined system of light irradiation and photocatalysis. Background Technology

[0002] With increasing population and accelerated industrialization and urbanization, wastewater discharge is increasing year by year, and water pollution is becoming increasingly serious. Harmful substances in wastewater pose a serious threat to the environment and human health. Reducing energy consumption in wastewater treatment and achieving efficient wastewater treatment have become hot topics. Traditional organic wastewater treatment methods suffer from low treatment efficiency and high energy consumption. Photocatalysis technology, due to its high efficiency and low energy consumption, has broad application potential in the field of organic wastewater treatment. However, photocatalytic reactions usually require photoexcitation, and the photocatalytic reaction rate decreases significantly under insufficient light conditions, affecting the treatment effect of organic wastewater. To address the above problems, under the advocacy of carbon peaking and carbon neutrality, there is an urgent need to develop a low-cost, low-energy organic wastewater treatment device and supporting technologies. Therefore, this application proposes a wastewater treatment device that uses solar energy and thermoelectric devices to power a photocatalytic process. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] In view of the above and / or existing problems in wastewater treatment, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a wastewater treatment device that uses solar energy and thermoelectric devices to power a photocatalytic reaction assisted by light. By generating electricity from solar energy and thermoelectric devices and storing energy in a battery, the device can achieve fully automated organic wastewater degradation without the need for external power supply. This includes functions such as auxiliary lighting for photocatalytic reaction degradation of organic wastewater, automatic wastewater injection, automatic discharge, and automatic measurement of dissolved oxygen concentration in wastewater. The thermoelectric devices not only generate electricity but also provide cooling. This device can achieve automated photocatalytic degradation of organic wastewater without external power supply, reducing energy consumption and improving wastewater treatment efficiency.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A wastewater treatment device that uses solar energy and thermoelectric devices to power and assist photocatalysis includes: a solar panel, a battery, thermoelectric devices, a photocatalytic reaction tank, a wastewater input device, and a wastewater output device. Solar panels are installed on both sides of the top of the photocatalytic reaction tank. The solar panels are connected to the battery, and thermoelectric devices are installed on the solar panels. The wastewater input device is connected to the left side of the photocatalytic reaction tank, and the wastewater output device is connected to the right side of the photocatalytic reaction tank.

[0008] As a preferred embodiment of the wastewater treatment device that uses solar energy and thermoelectric devices to provide synergistic power supply and assist photocatalysis, as described in this utility model, the solar panel is connected to a rotating shaft and a rotating shaft motor. The solar panel is connected to the upper edge of the photocatalytic reaction tank via the rotating shaft, and the rotating shaft is connected to the rotating shaft motor.

[0009] As a preferred embodiment of the wastewater treatment device of the present invention, which uses solar energy and thermoelectric devices to provide power and assist in photocatalysis, a DC / DC converter is connected between the battery and the solar panel.

[0010] As a preferred embodiment of the wastewater treatment device for which solar energy and thermoelectric devices work together to provide power and assist in photocatalysis, as described in this utility model, the thermoelectric device is connected to a TU oxygen-free copper heat sink, a copper tube, and a spiral heat dissipation copper tube. The cold end of the thermoelectric device is connected to the TU oxygen-free copper heat sink with thermally conductive silicone. The TU oxygen-free copper heat sink is connected to the spiral heat dissipation copper tube through the copper tube.

[0011] As a preferred embodiment of the wastewater treatment device that uses solar energy and thermoelectric devices to power synergistically and assist in photocatalysis, the photocatalytic reaction tank is equipped with a net, an ultraviolet LED lamp, a dissolved oxygen test probe, and a float trigger switch.

[0012] As a preferred embodiment of the wastewater treatment device that uses solar energy and thermoelectric devices to power synergistically and assist photocatalysis, the wastewater input device includes an input inlet pipe, an input pump, and an input discharge pipe. The inlet of the input pump is connected to the input inlet pipe, and the outlet of the input pump is connected to the input discharge pipe that is connected to the photocatalytic reaction tank.

[0013] As a preferred embodiment of the wastewater treatment device that uses solar energy and thermoelectric devices to provide synergistic power supply and assist photocatalysis, the wastewater output device includes an output inlet pipe, an output pump, and an output discharge pipe. The output pump is connected to the photocatalytic reaction tank through the output inlet pipe, and the outlet end of the output pump is connected to the output discharge pipe.

[0014] Compared with existing technologies, this utility model achieves fully automated organic wastewater degradation by combining solar energy, thermoelectric devices for power generation, and battery energy storage for power supply. It enables the degradation of organic wastewater through photocatalytic reaction with auxiliary lighting, automatic wastewater injection, automatic discharge, and automatic measurement of dissolved oxygen concentration without the need for external power supply. The thermoelectric devices serve both as power generators and as cooling devices. This device can achieve automated photocatalytic degradation of organic wastewater without external power supply, reducing energy consumption and improving wastewater treatment efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This utility model includes a simplified connection diagram for the storage battery and thermoelectric device, ultraviolet LED lamp, solar panel, DC / DC converter, dissolved oxygen test probe, and pump.

[0018] Figure 3 This is a schematic diagram of the structure of the photocatalytic reaction tank wall and the float trigger switch of this utility model;

[0019] Figure 4 This is a cross-sectional view of the connection between the solar panel shaft and the shaft motor of this utility model.

[0020] In the diagram: 1. Solar panel; 11. Shaft; 12. Shaft motor; 2. Battery; 21. DC / DC converter; 3. Thermoelectric device; 31. TU2 oxygen-free copper heat sink; 32. Copper pipe; 33. Spiral heat dissipation copper pipe; 4. Photocatalytic reaction tank; 41. Net; 42. Ultraviolet LED lamp; 43. Dissolved oxygen test probe; 44. Float trigger switch; 5. Sewage input device; 51. Input inlet pipe; 52. Input discharge pipe; 53. Sewage output device; 6. Output inlet pipe; 61. Output pump; 62. Output discharge pipe; 63. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This utility model provides a wastewater treatment device that uses solar energy and thermoelectric devices to collaboratively power photocatalysis. By combining solar energy, thermoelectric devices for power generation, and battery storage for energy storage, it achieves fully automated organic wastewater degradation without external power supply. This includes functions such as auxiliary lighting for photocatalytic degradation of organic wastewater, automatic wastewater injection and discharge, and automatic measurement of dissolved oxygen concentration. The thermoelectric devices function both as power generators and as cooling devices. This device can achieve automated photocatalytic degradation of organic wastewater without external power supply, reducing energy consumption and improving wastewater treatment efficiency. Please refer to [link / reference]. Figures 1-2 It includes: 1. Solar panel; 2. Battery; 3. Thermoelectric device; 4. Photocatalytic reaction tank; 5. Wastewater input device; and 6. Wastewater output device.

[0026] Solar panels 1 are installed on both sides of the top of the photocatalytic reaction tank 4. The solar panels 1 are connected to batteries 2. Thermoelectric devices 3 are installed on the solar panels 1. The wastewater input device 5 is connected to the left side of the photocatalytic reaction tank 4, and the wastewater output device 6 is connected to the right side of the photocatalytic reaction tank 4.

[0027] The solar panel 1 is connected to a rotating shaft 11 and a rotating shaft motor 12. The solar panel is connected to the upper edge of the photocatalytic reaction tank 4 via the rotating shaft 11, and the rotating shaft 11 is connected to the rotating shaft motor 12.

[0028] A DC / DC converter 21 is connected between the battery 2 and the solar panel 1.

[0029] The thermoelectric device 3 is connected to a TU2 oxygen-free copper heat sink 31, a copper tube 32, and a spiral heat sink copper tube 33. The cold end of the thermoelectric device 3 is connected to the TU2 oxygen-free copper heat sink 31 with thermally conductive silicone. The TU2 oxygen-free copper heat sink 31 is connected to the spiral heat sink copper tube 33 through the copper tube 32.

[0030] The photocatalytic reaction tank 4 is equipped with a net bag 41, an ultraviolet LED lamp 42, a dissolved oxygen test probe 43, and a float trigger switch 44.

[0031] The wastewater input device 5 includes an input inlet pipe 51, an input pump 52, and an input discharge pipe 53. The inlet of the input pump 52 is connected to the input inlet pipe 51, and the outlet of the input pump 52 is connected to the input discharge pipe 53, which is connected to the photocatalytic reaction tank 4, for introducing untreated wastewater from the outside into the treatment system.

[0032] The wastewater discharge device 6 includes an inlet / outlet pipe 61, an outlet pump 62, and an outlet / discharge pipe 63. The outlet pump 62 is connected to the photocatalytic reaction tank 4 through the inlet / outlet pipe 61, and the outlet end of the outlet pump 62 is connected to the outlet / discharge pipe 63 for discharging the treated water from the system.

[0033] The solar panel is connected to the edge of the photocatalytic reaction tank via a rotating shaft 11. It is connected to the solar panel rotating shaft drive motor 12, battery 2, ultraviolet LED lamp 42, thermoelectric device 3, sewage injection pump 52, and output pump 62 via wires. When there is sufficient sunlight, it charges the battery 2 and supplies power to the other electrical components. The solar panel adjusts its angle according to the angle of sunlight via the rotating shaft drive motor.

[0034] The battery 2 is connected to the solar panel 1, the thermoelectric device 3, and other electrical components via a DC / DC converter 21. The DC / DC converter 21 can change the voltage to meet the power supply requirements for charging the battery and powering the pump, ultraviolet LED lamp, and shaft drive motor.

[0035] Thermoelectric device 3 is installed on the back of the ultraviolet LED lamp 42 and the back of the solar panel 1 to collect the heat energy generated by the solar panel and convert it into electrical energy. The hot end of thermoelectric device 3 is fixed to the back of solar panel 1 and the outer wall of photocatalytic reaction tank 4 with thermally conductive silicone. The cold end of thermoelectric device 3 is connected to TU2 oxygen-free copper heat sink 31 with thermally conductive silicone. n-Pentane with a boiling point of 36°C is added to the hollow cavity of oxygen-free copper heat sink 31. TU2 oxygen-free copper heat sink 31 is connected to spiral heat dissipation copper pipe 33 through copper pipe 32. Spiral heat dissipation copper pipe 33 is placed in a circulating water tank higher than the solar panel. When the temperature of the cold end of thermoelectric device 3 exceeds 36°C, the n-pentane in the heat sink vaporizes and moves upward. After being cooled by the spiral water pipe to a temperature below 36°C, it liquefies and moves downward, achieving self-circulation of cooling and heat dissipation. The cooling water in the circulating water tank is taken from sewage, and the circulating water pump is powered by the solar panel and battery. During prolonged operation, the solar panel temperature can reach 70℃, while the wastewater to be treated is 15-30℃, providing a temperature difference for the thermoelectric device to generate electricity. When the solar panel is under intense sunlight, the high temperature can reduce its photovoltaic efficiency. This can be addressed by using the thermoelectric device to provide reverse power for cooling, thus lowering the solar panel temperature. Similarly, the thermoelectric device on the back of the UV LED lamp can be cooled by applying power, ensuring the UV LED lamp's operating temperature and lighting effect.

[0036] A mesh bag 41 containing TiO2 photocatalyst is placed in the photocatalytic reaction tank 4 to prevent the titanium dioxide catalyst from flowing out during wastewater discharge. Several ultraviolet LED lamps 42 are installed in the tank as supplementary light sources to improve photocatalytic efficiency. A dissolved oxygen test probe 43 is placed at the interface between the photocatalytic reaction tank 4 and the output pipe 61, and connected to a dissolved oxygen concentration meter. The oxygen concentration meter is powered by the system itself. The average dissolved oxygen concentration of the wastewater in the photocatalytic reaction tank 4 is measured at adjustable time intervals to evaluate the effect of photocatalytic degradation of pollutants. When the average value is higher than the set value for three consecutive times, the wastewater degradation is considered to have reached the standard. The oxygen concentration meter issues a command, and pump 62 starts to operate, discharging the water in the photocatalytic reaction tank. Subsequently, pump 52 operates to replace the wastewater that needs further purification. To control the injection and discharge of the photocatalytic reaction tank, a float trigger switch 44 is installed in the photocatalytic reaction tank. When the float reaches its lowest value, the lowest point is set at the horizontal position of the wastewater discharge pipe. The float trigger switch 44 stops pump 62 and pump 52 starts operating simultaneously. When the float reaches its highest point due to the buoyancy of the liquid, the float trigger switch 44 stops the pump 52 that is injecting sewage.

[0037] In this device, the pump, ultraviolet LED lamp, and rotating shaft are all driven by the power provided by the battery through a DC / DC converter to a suitable operating voltage.

[0038] In specific usage;

[0039] Solar power generation and storage: The rotating shaft 11 is adjusted to a suitable power generation angle by the rotating shaft motor 12. The solar panel 1 collects solar energy and converts it into electrical and thermal energy. The electrical energy is regulated by a DC / DC converter, and the photovoltaic power is stored in the battery 2. The heat generated by the solar panel is transferred to the hot end of the thermoelectric device 3 by thermally conductive silicone. The cold end of the thermoelectric device 3 is fixed with a TU2 oxygen-free copper heat sink 31 by thermally conductive silicone, where n-pentane evaporates and dissipates heat, ensuring a large temperature difference between the two ends of the thermoelectric device and maintaining its power generation. The TU2 oxygen-free copper heat sink 31 is connected to a spiral heat dissipation copper pipe 33 by a copper pipe 32. The spiral heat dissipation copper pipe 33 is placed in a circulating water tank higher than the solar panel. When the temperature of the cold end of the thermoelectric device 3 exceeds 36 degrees Celsius, the n-pentane in the heat sink vaporizes and moves upward. After being cooled by the water in the spiral tube, its temperature drops below 36 degrees Celsius and it liquefies and moves downward, achieving a self-circulating cooling system.

[0040] Thermoelectric devices cool solar panels and UV LEDs: During periods of intense sunlight, solar panels can overheat, reducing their photovoltaic efficiency. Reverse-current thermoelectric devices can be used to cool the panels and lower their temperature. Similarly, the thermoelectric devices on the back of the UV LEDs can be powered to maintain their cooling capacity, ensuring optimal operating temperature and lighting performance.

[0041] Photocatalytic reaction: Wastewater enters the photocatalytic reaction tank 4. Under sunlight or ultraviolet LED lamps 42, the TiO2 photocatalyst produces highly active oxide species, such as hydroxyl radicals (-OH). These oxide species have extremely strong oxidizing power and can decompose various organic pollutants and some inorganic pollutants. The photocatalytic reaction tank 4 is equipped with multiple ultraviolet LED lamps 42 to provide supplementary light sources when sunlight is insufficient, ensuring the continuous progress of the photocatalytic reaction.

[0042] Wastewater Input and Discharge: The average dissolved oxygen concentration of the wastewater in photocatalytic reactor 4 is measured at adjustable time intervals to evaluate the photocatalytic degradation effect on pollutants. When the average value is higher than the set value for three consecutive times, the wastewater degradation is considered to have reached the standard. The oxygen concentration tester issues a command, and pump 62 starts to operate, discharging the water in the photocatalytic reactor. Subsequently, pump 52 starts to replace the wastewater requiring further purification. To control the injection and discharge of the photocatalytic reactor, a float-triggered switch 44 is installed in the photocatalytic reactor. When the float reaches its lowest value (the lowest point is set at the horizontal position of the wastewater discharge pipe), the float-triggered switch 44 stops pump 62 and simultaneously starts pump 52. When the float reaches its highest point due to buoyancy, the float-triggered switch 44 stops pump 52, which is injecting wastewater.

[0043] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wastewater treatment device that uses solar energy and thermoelectric devices in synergistic power supply to assist photocatalysis, characterized in that, include: The system includes a solar panel (1), a storage battery (2), a thermoelectric device (3), a photocatalytic reaction tank (4), a sewage input device (5), and a sewage output device (6). The photocatalytic reaction tank (4) is equipped with solar panels (1) on both sides of its top. The solar panels (1) are connected to the storage battery (2). The thermoelectric device (3) is installed on the solar panels (1). The sewage input device (5) is connected to the left side of the photocatalytic reaction tank (4), and the sewage output device (6) is connected to the right side of the photocatalytic reaction tank (4).

2. The wastewater treatment device with solar energy and thermoelectric devices working together to provide power and assist photocatalysis according to claim 1, characterized in that, The solar panel (1) is connected to a rotating shaft (11) and a rotating shaft motor (12). The solar panel is connected to the upper edge of the photocatalytic reaction tank (4) via the rotating shaft (11), and the rotating shaft (11) is connected to the rotating shaft motor (12).

3. The wastewater treatment device with solar energy and thermoelectric devices working together to provide power and assist in photocatalysis according to claim 2, characterized in that, A DC / DC converter (21) is connected between the battery (2) and the solar panel (1).

4. The wastewater treatment device with solar energy and thermoelectric devices working together to provide power and assist photocatalysis according to claim 3, characterized in that, The thermoelectric device (3) is connected to a TU2 oxygen-free copper heat sink (31), a copper tube (32), and a spiral heat sink copper tube (33). The cold end of the thermoelectric device (3) is connected to the TU2 oxygen-free copper heat sink (31) with thermally conductive silicone. The TU2 oxygen-free copper heat sink (31) is connected to the spiral heat sink copper tube (33) through the copper tube (32).

5. The wastewater treatment device with solar energy and thermoelectric devices working together to provide power and assist photocatalysis according to claim 4, characterized in that, The photocatalytic reaction tank (4) is equipped with a net (41), an ultraviolet LED lamp (42), a dissolved oxygen test probe (43), and a float trigger switch (44).

6. The wastewater treatment device with solar energy and thermoelectric devices working together to provide power for photocatalysis and illumination, as described in claim 5, is characterized in that... The wastewater input device (5) includes an input inlet pipe (51), an input pump (52), and an input discharge pipe (53). The inlet of the input pump (52) is connected to the input inlet pipe (51), and the outlet of the input pump (52) is connected to the input discharge pipe (53) which is connected to the photocatalytic reaction tank (4).

7. The wastewater treatment device with solar energy and thermoelectric devices working together to provide power for photocatalysis and illumination, as described in claim 6, is characterized in that... The wastewater output device (6) includes an output inlet pipe (61), an output pump (62) and an output discharge pipe (63). The output pump (62) is connected to the photocatalytic reaction tank (4) through the output inlet pipe (61), and the outlet end of the output pump (62) is connected to the output discharge pipe (63).

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