Street lamp utilizing sewage to generate electricity

Abstract

The utility model relates to a street lamp utilizing sewage to generate power, belongs to the technical field of street lamps, and aims to solve the problems that solar power generation of the conventional street lamp is difficult to guarantee in winter, and hydroelectric power generation wastes resources. The utility model provides a hydroelectric generation street lamp which comprises a lamp pole and a lamp tube and further comprises a storage battery, a generator, a monitoring assembly and a Venturi tube. The storage battery is arranged on the lower portion of the lamp pole and used for supplying power to the lamp tube. The generator is arranged in the sewage well and is used for charging the storage battery; the generator comprises an impeller, a rotating shaft and a generator; the multiple impellers are arranged, the power generators and the impellers are coaxially fixed to the rotating shaft, and the power generators can rotate along with the impellers. The monitoring assembly is arranged in a sewage well and comprises a methane concentration monitor and a hydrogen sulfide concentration monitor; the venturi tube is used for increasing the flow velocity of sewage entering the generator; the Venturi tube is horizontally arranged at the end, close to the water inlet, of the generator. The sewage power generation device can generate power by using sewage and is high in power generation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a street light that generates electricity from wastewater. Background Technology

[0002] Currently, existing streetlights often use solar photovoltaic panels for power generation. However, during winter and rainy weather, the short sunshine hours and insufficient solar energy supply make it difficult to guarantee lighting efficiency and usage time. Current hydroelectric streetlights require water, resulting in high energy consumption. Existing technologies use rainwater for power generation, but storing rainwater in sewers and having it coexist with the generator poses a risk of generator fire due to the potential for flammable gases to be released from the air in the sewers. Utility Model Content

[0003] Based on the above analysis, the present invention aims to provide a street light that generates electricity from wastewater, in order to solve the problems of the difficulty in guaranteeing the duration of solar power generation in winter and the waste of resources in hydropower generation.

[0004] The objective of this utility model is mainly achieved through the following technical solutions:

[0005] This utility model provides a street light that generates electricity from wastewater, including a light pole and a light tube, as well as a storage battery, a generator, a monitoring component and a venturi tube;

[0006] The storage battery is located at the lower part of the light pole and is used to power the light tube; the generator is located in the sewage well and is used to charge the storage battery.

[0007] The generator includes an impeller, a shaft, and a generator; multiple impellers are provided, and the generator is coaxially fixed to the shaft with the impeller and can rotate with the impeller;

[0008] The monitoring component is installed in the sewage well, and the monitoring component includes a methane concentration monitor and a hydrogen sulfide concentration monitor;

[0009] The venturi tube is used to increase the flow rate of wastewater entering the generator;

[0010] The venturi tube is horizontally positioned at one end of the generator near the water inlet.

[0011] Furthermore, the middle of the Venturi tube is a straight tube, and the two ends of the Venturi tube are tapered tubes with the same taper but opposite taper directions.

[0012] Furthermore, the venturi tube is connected to the inlet pipe at the sewage well inlet.

[0013] Furthermore, the monitoring component also includes a display screen.

[0014] Furthermore, the display screen is mounted on the lamp post.

[0015] Furthermore, the display screen is used to show the concentrations of methane and hydrogen sulfide in the sewage well.

[0016] Furthermore, the battery can power the display screen.

[0017] Furthermore, multiple generators are provided, and the multiple generators are connected in parallel.

[0018] Furthermore, a filter screen is installed near the inlet of the sewage well, and the filter screen is used to clean debris.

[0019] Furthermore, it also includes solar photovoltaic panels.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] (1) Compared with the prior art, the present invention sets up a generator in the sewage well, converts the gravitational potential energy of the sewage into electrical energy of the generator, and transmits it to the storage battery to charge the storage battery. This ensures that the street light can continue to work on cloudy and rainy days, avoiding the problems of insufficient charging, low lighting efficiency and short usage time when only solar energy is used for charging, and maintaining stable power supply. At the same time, the sewage is effectively utilized, saving electricity costs, avoiding resource waste, and achieving green environmental protection and cost reduction and efficiency improvement.

[0022] (2) Compared with the prior art, this utility model sets up a sewage well air pollutant concentration monitoring component in the sewage well to monitor the methane concentration and hydrogen sulfide concentration in the sewage well in real time, so that staff can give early warning and avoid phenomena such as fire in the generator in the sewage well.

[0023] (3) Compared with the prior art, this utility model sets a Venturi tube at the end of the generator near the water inlet. The Venturi tube is connected to the inlet pipe at the sewage well inlet. The middle of the Venturi tube is a straight pipe, and the two ends are tapered pipes with the same taper and opposite taper directions. According to Bernoulli's law, the water flow velocity gradually increases when flowing through the tapered pipe, and the water flow velocity is the maximum at the throat. The overall flow velocity of the sewage from the sewage well through the Venturi tube is much greater than the overall flow velocity through an ordinary circular pipe. The sewage after passing through the Venturi tube flows directly to the generator at a high velocity, which can significantly improve the generator's power generation efficiency.

[0024] (4) The present invention provides a filter screen near the water inlet of the venturi tube to clean up debris, prevent debris from entering the unit and affecting the operating efficiency, reduce the risk of mechanical failure, and ensure the efficient operation of the unit.

[0025] (5) In addition to wastewater power generation, this utility model is also equipped with a solar photovoltaic panel for charging the storage battery during the daytime sunshine, thereby providing the street light with multiple resources and energy methods to ensure the continuous power supply of the street light.

[0026] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0027] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0028] Figure 1 This is a schematic diagram of the street light structure in specific embodiment 1;

[0029] Figure 2 This is a schematic diagram of the generator in specific embodiment 1;

[0030] Figure 3 This is a schematic diagram of the wiring structure of the generator in specific embodiment 1;

[0031] Figure 4 This is a schematic diagram of the structure of a street light with pollutant monitoring according to specific embodiment 1.

[0032] Figure 5 This is a schematic diagram of the street light in specific embodiment 2.

[0033] Figure label:

[0034] 1-Lamp tube, 2-Lamp pole, 3-Battery, 4-Generator, 401-Inlet, 402-Outlet, 403-Generator, 404-Impeller, 405-Wire, 406-Generator housing, 5-Solar photovoltaic panel, 6-Monitoring components, 601-Methane concentration monitor, 602-Hydrogen sulfide concentration monitor, 603-Pipe, 604-Display screen, 7-Venturi tube, 8-Filter screen. Detailed Implementation

[0035] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0036] Example 1

[0037] A specific embodiment of this utility model is as follows: Figure 1 As shown, a street light that generates electricity from sewage is disclosed, including a light pole 2, a light tube 1, a storage battery 3 and a generator 4.

[0038] The lamp tube 1 is located on the upper part of the lamp post 2. The battery 3 is located on the lower part of the lamp post 2 and is used to supply power to the lamp tube 1.

[0039] Generator 4 is installed in a sewage well next to battery 3 to generate hydroelectric power using sewage from the well. To increase power generation, at least one generator 4 is installed, and multiple generators 4 are connected in parallel and connected to battery 3 via wire 405. The electricity generated by generator 4 is stored in battery 3.

[0040] like Figure 2 As shown, generator 4 is housed within generator housing 406. Generator 4 includes impeller 404, shaft, and generator 403. Multiple impellers 404 are provided. Generator 403 is coaxially fixed to the shaft with impeller 404 and can rotate together with impeller 404. Figure 3 As shown, the output wire 405 of the generator 403 is connected to the storage battery 3 and then to the street light to provide illumination for the street light. A conduit 603 is installed outside the wire 405.

[0041] The sewage well includes an inlet 401 and an outlet 402. A generator 4 is positioned between the inlet 401 and the outlet 402. Sewage flows into the sewage well through the inlet 401 and onto the impeller 404. The impact of the sewage flow causes the impeller 404 to rotate. Thus, the gravitational potential energy of the sewage is converted into the kinetic energy of the rotating impeller 404. Simultaneously, the rotation of the impeller 404 drives the generator 403, which is coaxially connected to the impeller 404, to rotate, converting the kinetic energy of the impeller 404 into electrical energy. This electrical energy is then connected to the battery 3 via wire 405 to charge the battery 3, ensuring the continuous operation of the streetlights. The sewage flowing into the sewage well is discharged from the outlet 402 after passing through the impeller 404.

[0042] Furthermore, solar photovoltaic panels 5 are installed to charge the storage battery 3 during the day and provide lighting for the streetlights, thus providing the streetlights with multiple resources and energy sources to ensure continuous power supply.

[0043] Compared with the prior art, this embodiment sets up a generator 4 in the sewage well, converting the gravitational potential energy of the sewage into electrical energy for the generator 403, and transmitting it to the storage battery 3 to charge the storage battery 3. This ensures that the street light can work continuously, avoiding the problems of insufficient charging, low lighting efficiency and short usage time when only solar power is available on rainy days, and maintaining a stable power supply. At the same time, it effectively utilizes sewage, saves electricity costs, avoids resource waste, and achieves energy conservation, environmental protection and cost reduction.

[0044] Because the sewage in the sewage well produces polluting gases such as methane and hydrogen sulfide, and generator 4 has always been placed in the sewage well, to prevent a fire, further measures should be taken, such as... Figure 4 As shown, monitoring component 6 is set up to monitor the concentration of pollutants inside the sewage well in real time.

[0045] The monitoring component 6 includes a methane concentration monitor 601, a hydrogen sulfide concentration monitor 602, and a display screen 604. The methane concentration monitor 601 and hydrogen sulfide concentration monitor 602 are mounted on fixed shafts on both sides of the impeller 404, and the display screen 604 is mounted on the light pole 2. The monitors include sensors and probes. The monitors transmit the detected methane and hydrogen sulfide concentrations in the wastewater well to the display screen 604, which displays the pollutant concentrations in real time, allowing staff to monitor and receive early warnings. The display screen 604 is powered by a storage battery 3.

[0046] Compared with the prior art, this embodiment installs a monitoring component 6 inside the sewage well to monitor the methane and hydrogen sulfide concentrations in the sewage well in real time, enabling staff to provide early warnings and prevent phenomena such as fires caused by the generator 4 inside the sewage well.

[0047] Example 2

[0048] To increase the flow rate of water entering impeller 404, such as Figure 5 As shown, this embodiment is an improvement on the first embodiment, with a Venturi tube 7 installed at the end of the generator 4 near the water inlet 401.

[0049] Venturi tube 7 connects to the inlet pipe at the sewage well inlet 401. When sewage enters, it flows into Venturi tube 7 through the water pipe. The middle of Venturi tube 7 is a straight pipe, and both ends are tapered pipes with the same taper but opposite taper directions. One end is a gradually contracting section, and the other end is an expanding section. The straight pipe in the middle is the throat section.

[0050] According to Bernoulli's principle, water velocity increases as it passes through a narrowing cross-section; the velocity is inversely proportional to the cross-sectional area. In the Venturi tube 7, the inlet cross-sectional area gradually decreases, leading to a gradual increase in water velocity, which is greatest at the throat. Therefore, the overall flow velocity of sewage from the sewage well through the Venturi tube 7 is significantly greater than that through a regular circular pipe. Because the distance between the Venturi tube 7 and the generator 4 is relatively short, the sewage flowing through the Venturi tube 7 directly to the generator 4 at a high velocity, greatly improving the generator 4's power generation efficiency.

[0051] Furthermore, a filter screen 8 is installed at the end of the venturi tube 7 near the water inlet 401 to clean debris, prevent debris from entering the unit and affecting its operating efficiency, reduce the risk of mechanical failure, and ensure the efficient operation of the unit.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A street light that generates electricity from wastewater, comprising a light pole (2) and a light tube (1), characterized in that, It also includes a storage battery (3), a generator (4), a monitoring component (6), a venturi tube (7), and a solar photovoltaic panel (5); The storage battery (3) is located at the lower part of the lamp post (2) and is used to supply power to the lamp tube (1); the generator (4) is located in the sewage well and is used to charge the storage battery (3); The generator (4) includes an impeller (404), a rotating shaft, and a generator (403); multiple impellers (404) are provided, and the generator (403) is coaxially fixed to the rotating shaft with the impeller (404), and the generator (403) can rotate with the impeller (404); The monitoring component (6) is installed in the sewage well, and the monitoring component (6) includes a methane concentration monitor (601) and a hydrogen sulfide concentration monitor (602); The Venturi tube (7) is used to increase the flow rate of sewage entering the generator (4); The venturi tube (7) is horizontally positioned at one end of the generator (4) near the water inlet (401).

2. The street light that generates electricity from wastewater according to claim 1, characterized in that, The middle part of the Venturi tube (7) is a straight tube, and the two ends of the Venturi tube (7) are tapered tubes with the same taper and opposite taper directions.

3. The street light that generates electricity from wastewater according to claim 2, characterized in that, The Venturi tube (7) is connected to the inlet pipe at the sewage well inlet (401).

4. The street light that generates electricity from wastewater according to claim 1, characterized in that, The monitoring component (6) also includes a display screen (604).

5. The street light that generates electricity from wastewater according to claim 4, characterized in that, The display screen (604) is mounted on the lamp post (2).

6. The street light that generates electricity from wastewater according to claim 4, characterized in that, The display screen (604) is used to display the concentrations of methane and hydrogen sulfide in the sewage well.

7. The street light that generates electricity from wastewater according to claim 6, characterized in that, The battery (3) can power the display screen (604).

8. The street light that generates electricity from wastewater according to claim 1, characterized in that, Multiple generators (4) are provided, and multiple generators (4) are connected in parallel.

9. The street light that generates electricity from wastewater according to claim 1, characterized in that, The Venturi tube (7) is equipped with a filter screen (8) near the water inlet (401), and the filter screen (8) is used to clean up debris.

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