Microbial fuel cell for generating electric energy by using soil

Abstract

The utility model belongs to the technical field of new energy and green low carbon, and particularly relates to a microbial fuel cell for generating electric energy by utilizing soil, which comprises an anode electrode, a cathode electrode, a gas exchange membrane, a circular folding cover, a square folding cover, a gas chamber and a protective cover, the gas chamber is fixedly mounted on the top surface of the circular folding cover, the gas exchange membrane and the cathode electrode are respectively and sequentially arranged in the gas chamber, the square folding cover is arranged in the gas chamber, and the protective cover is buckled at the top end of the gas chamber. The utility model has the advantage that the microbial fuel cell provides power for the underground sensor used in precision agriculture and green infrastructure so as to prevent environmental threat caused by the use of the traditional cell.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy and green low carbon technology field, specifically, the utility model relates to a kind of microorganism fuel cell for generating electric energy using soil. BACKGROUND

[0002] Microbial fuel cell is a kind of technology for generating electric energy using the metabolic process of microorganism.In microbial fuel cell, instead of obtaining electric energy from chemical source, bacteria naturally provide electrons to nearby conductor when decomposing soil.Currently, the battery we use is made of lithium, heavy metal and other environment-harmful materials, and heavy metal and other materials have enrichment effect in environment, causing long-term harm to environment.Microbial fuel cell can provide power for underground sensor used in precision agriculture and green infrastructure, to prevent environmental threat caused by traditional battery use.The electric quantity generated by microbial fuel cell is not enough to drive smart phone, but can provide electric energy for small sensor, which can operate for a long time without regular battery replacement. SUMMARY

[0003] Therefore, the utility model provides a kind of microorganism fuel cell for generating electric energy using soil, to solve or at least alleviate the above-mentioned problems existing in prior art.

[0004] To achieve the foregoing object, the utility model provides a kind of microorganism fuel cell for generating electric energy using soil, including: anode electrode, cathode electrode, gas exchange membrane, circular folding cover, square folding cover, gas chamber and protective cover, the anode electrode is installed in the inside of circular folding cover, the circular folding cover is hollow, the gas chamber is fixedly installed at the top surface of circular folding cover, the gas exchange membrane and cathode electrode are sequentially arranged in gas chamber respectively, the square folding cover is arranged in gas chamber, and the protective cover is buckled at the top end of gas chamber.

[0005] In the microorganism fuel cell for generating electric energy using soil as described above, the gas chamber and the circular folding cover are perpendicular to each other, cavities are formed at both ends of the gas chamber, and openings are formed at the upper end and the front side of the cavities.

[0006] In the microorganism fuel cell for generating electric energy using soil as described above, the square folding cover is hollow, and the square folding cover is slidably installed on the outer wall of the gas chamber, so as to shield the opening.

[0007] In the microorganism fuel cell for generating electric energy using soil as described above, the bottom end of the circular folding cover is provided with an annular groove, and the bottom end of the circular folding cover is provided with limit rods arranged in circumferential direction, and the limit rods are rotatably installed on the bottom end of the circular folding cover.

[0008] In the microbial fuel cell for generating electric energy by soil as described above, optionally, a rotating groove is formed in the bottom end of the circular folding cover, the limiting rod is rotatably installed in the rotating groove, and the upper and lower sides of the rotating groove are fixedly installed with limiting plates.

[0009] In the microbial fuel cell for generating electric energy by soil as described above, optionally, a movable groove is formed in the outer wall of the circular folding cover, and a circular ring is arranged in the movable groove.

[0010] In the microbial fuel cell for generating electric energy by soil as described above, optionally, a limiting ring is arranged at the bottom end of the circular ring, the top surface of the limiting ring is in contact with the bottom surface of the circular ring, and a driving ring is fixedly installed on the outer wall of the limiting ring.

[0011] In the microbial fuel cell for generating electric energy by soil as described above, optionally, an inclined block is fixedly installed on the driving ring, a clamping groove is formed in the center of the inclined block, the limiting rod can be inserted into the clamping groove, a stabilizing ring is fixedly installed on the outer wall of the driving ring, and the stabilizing ring is sleeved on the outer wall of the circular folding cover.

[0012] The microbial fuel cell for generating electric energy by soil can realize that the microbial fuel cell provides power for underground sensors used in precision agriculture and green infrastructure to prevent environmental threats caused by the use of traditional batteries. BRIEF DESCRIPTION OF DRAWINGS

[0013] The disclosure of the present application will be more apparent with reference to the drawings. It should be understood that these drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings:

[0014] Fig. 1 It is a structural schematic view of the embodiment one of the present application.

[0015] Fig. 2 It is a structural schematic view of the embodiment one of the present application.

[0016] Fig. 3 It is a structural schematic view of the embodiment two of the present application.

[0017] Fig. 4 It is a structural schematic view of the circular folding cover of the embodiment two of the present application.

[0018] Fig. 5 The utility model discloses a Fig. 4 The utility model discloses a

[0019] Fig. 1, anode electrode 2, cathode electrode 3, gas exchange membrane 4, round folding cover 4-1, annular groove 4-2, limiting rod 4-3, rotating groove 4-4, limiting plate 4-5, movable groove 5, square folding cover 6, gas chamber 6-1, cavity 6-2, opening 7, protective cover 8, circular ring 8-1, spring 8-2, limiting ring 8-3, driving ring 8-4, inclined block 8-5, clamping groove 8-6, stabilizing ring. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0021] As shown in Figs. 1-2 In embodiment one, a kind of microbial fuel cell for generating electric energy using soil, including: anode electrode 1, cathode electrode 2, gas exchange membrane 3, round folding cover 4, square folding cover 5, gas chamber 6 and protective cover 7, anode electrode 1 is installed in the inside of round folding cover 4, round folding cover 4 is hollow, gas chamber 6 is fixedly installed on the top surface of round folding cover 4, gas exchange membrane 3 and cathode electrode 2 are sequentially arranged in gas chamber 6, square folding cover 5 is arranged in gas chamber 6, and protective cover 7 is buckled on the top of gas chamber 6.

[0022] Anode electrode 1 is horizontally placed at the bottom of the equipment, and is deeply buried in soil. When microorganisms digest soil, it can capture electrons. The hollow round folding cover 4 can cover both sides of the anode electrode 1 with soil, increase the contact area between soil and the anode electrode 1, and improve the efficiency of the anode electrode 1.

[0023] Gas chamber 6 is perpendicular to round folding cover 4, and both ends of gas chamber 6 are provided with cavities 6-1. The upper end and the front side of the cavity 6-1 are provided with openings 6-2.

[0024] The opening 6-2 facilitates the installation of the cathode electrode 2 and the gas exchange membrane 3, and the cavity 6-1 allows oxygen to pass through.

[0025] The square folding cover 5 is hollow, and the square folding cover 5 is slidingly installed on the outer wall of the gas chamber 6. The square folding cover 5 can block the opening 6-2.

[0026] After the square folding cover 5 is fixed, the protective cover 7 can be put on to prevent the square folding cover 5 from moving and falling off. The hollowed-out cathode electrode 2 can directly increase the contact area and improve efficiency.

[0027] When the anode electrode 1 is buried underground, it is in an anaerobic environment. At this time, organic matter is decomposed by microorganisms and releases electrons and protons. Electrons are effectively transferred between biological components and anode electrode 1 through a suitable electron transfer medium and are transferred to cathode electrode 2 through an external circuit to form an electric current. Protons are transferred to cathode electrode 2 through gas exchange membrane 3. Oxidant is reduced and combines with protons to form water at cathode electrode 2 after gaining electrons.

[0028] like Figs. 3-5 As shown, in Embodiment 2, the bottom end of the circular cover 4 is provided with an annular groove 4-1, and the bottom end of the circular cover 4 is provided with a limiting rod 4-2 arranged in a circumferential direction. The limiting rod 4-2 is rotatably installed at the bottom end of the circular cover 4.

[0029] The bottom of the circular folding cover 4 has a rotating groove 4-3. The limiting rod 4-2 is rotatably installed in the rotating groove 4-3. Limiting plates 4-4 are fixedly installed on both the upper and lower sides of the rotating groove 4-3. The surface of the limiting rod 4-2 is in contact with the bottom surface of the anode electrode 1.

[0030] When the limiting rod 4-2 contacts the lower limiting plate 4-4, the limiting rod 4-2 is in a vertical state, allowing the anode electrode 1 to be placed inside the circular cover 4. When the limiting rod 4-2 contacts the upper limiting plate 4-4, the limiting rod 4-2 is in a horizontal state, at which point the limiting rod 4-2 contacts the anode electrode 1, preventing the anode electrode 1 from falling out of the circular cover 4.

[0031] The outer wall of the circular folding cover 4 has a movable groove 4-5, and the inside of the movable groove 4-5 is provided with a ring 8. A spring 8-1 is fixedly installed on the top surface of the ring 8 and the top inner wall of the movable groove 4-5.

[0032] A limiting ring 8-2 is provided at the bottom end of the ring 8. The top surface of the limiting ring 8-2 contacts the bottom surface of the ring 8. A driving ring 8-3 is fixedly installed on the outer wall of the limiting ring 8-2.

[0033] When the drive ring 8-3 rotates, it can drive the limit ring 8-2 to rotate, so that the limit ring 8-2 can rotate outside the circular cover 4. At this time, the spring 8-1 tightly fits the circular ring 8 against the limit ring 8-2.

[0034] An inclined block 8-4 is fixedly installed on the drive ring 8-3. A slot 8-5 is provided at the center of the inclined block 8-4. The limiting rod 4-2 can be inserted into the slot 8-5. A stabilizing ring 8-6 is fixedly installed on the outer wall of the drive ring 8-3. The stabilizing ring 8-6 is sleeved on the outer wall of the circular folding cover 4.

[0035] When the driving ring 8-3 rotates, the inclined block 8-4 can be driven to move, when the inclined block 8-4 moves, one end of the limiting rod 4-2 can be pressed, so that the limiting rod 4-2 rotates, so that the limiting rod 4-2 can stably install the anode electrode 1 in the circular folding cover 4, and the clamping groove 8-5 can stably install the driving ring 8-3 on the circular folding cover 4, the spring 8-1 stably contacts the clamping groove 8-5 and the limiting rod 4-2, and the stabilizing ring 8-6 can block the movable cavity and prevent soil from entering the movable cavity.

[0036] Compared with example one, example two can stably install the anode electrode 1 in the circular folding cover 4, and prevent the anode electrode 1 from falling off.

[0037] The technical scope of the utility model is not only limited to the contents in the above description, and the skilled in the art can deform and modify the above implementation in various ways without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the scope of the utility model.

Claims

1. A microbial fuel cell for generating electrical energy using soil, characterized by comprising: Include: Anode electrode (1), cathode electrode (2), gas exchange membrane (3), round folding cover (4), square folding cover (5), gas chamber (6) and protective cover (7), the anode electrode (1) is installed in the inside of round folding cover (4), the round folding cover (4) is provided as hollow, the gas chamber (6) is fixedly installed on the top surface of round folding cover (4), the gas exchange membrane (3) and cathode electrode (2) are arranged in gas chamber (6) in turn respectively, the square folding cover (5) is arranged in gas chamber (6), the protective cover (7) is buckled on the top end of gas chamber (6).

2. The microbial fuel cell for generating electric energy using soil according to claim 1, wherein The gas chamber (6) is perpendicular to the round folding cover (4), the both ends of the gas chamber (6) are provided with cavities (6-1), the upper end and the front side of the cavity (6-1) are provided with openings (6-2).

3. The microbial fuel cell utilizing soil for generating electric energy according to claim 2, wherein, The square folding cover (5) is provided as hollow, the square folding cover (5) is slidingly installed on the outer wall of the gas chamber (6), and the square folding cover (5) can shield the opening (6-2).

4. The microbial fuel cell for generating electric energy using soil according to claim 1, wherein The bottom end of the round folding cover (4) is provided with an annular groove (4-1), and the bottom end of the round folding cover (4) is provided with a plurality of limiting rods (4-2) arranged in the circumferential direction, and the limiting rods (4-2) are rotatably installed on the bottom end of the round folding cover (4).

5. The microbial fuel cell utilizing soil for generating electric energy according to claim 4, wherein The bottom end of the round folding cover (4) is provided with a rotating groove (4-3), and the limiting rods (4-2) are rotatably installed in the rotating groove (4-3), and the upper and lower sides of the rotating groove (4-3) are fixedly installed with limiting plates (4-4), and the surface of the limiting rod (4-2) is in contact with the bottom surface of the anode electrode (1).

6. The microbial fuel cell utilizing soil for generating electric energy according to claim 5, wherein, The outer wall of the round folding cover (4) is provided with a movable groove (4-5), and the inside of the movable groove (4-5) is provided with a circular ring (8), and the top surface of the circular ring (8) and the top end inner wall of the movable groove (4-5) are fixedly installed with a spring (8-1).

7. A microbial fuel cell for generating electrical energy from soil according to claim 6, wherein, The bottom end of the circular ring (8) is provided with a limiting ring (8-2), the top surface of the limiting ring (8-2) and the bottom surface of the circular ring (8) are in contact, and the outer wall of the limiting ring (8-2) is fixedly installed with a driving ring (8-3).

8. The microbial fuel cell utilizing soil for generating electric energy according to claim 7, wherein, The driving ring (8-3) is fixedly installed with an inclined block (8-4), the center of the inclined block (8-4) is provided with a clamping groove (8-5), the limiting rod (4-2) can be inserted into the clamping groove (8-5), and the outer wall of the driving ring (8-3) is fixedly installed with a stabilizing ring (8-6), and the stabilizing ring (8-6) is sleeved on the outer wall of the round folding cover (4).

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