CN220976899U - Methane purifying device - Google Patents
Methane purifying device Download PDFInfo
- Publication number
- CN220976899U CN220976899U CN202322621622.3U CN202322621622U CN220976899U CN 220976899 U CN220976899 U CN 220976899U CN 202322621622 U CN202322621622 U CN 202322621622U CN 220976899 U CN220976899 U CN 220976899U
- Authority
- CN
- China
- Prior art keywords
- biogas
- filter
- filter cavity
- filter chamber
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 31
- 230000023556 desulfurization Effects 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- 238000005273 aeration Methods 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 230000003009 desulfurizing effect Effects 0.000 claims description 13
- 235000019738 Limestone Nutrition 0.000 claims description 11
- 239000006028 limestone Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 8
- 239000006004 Quartz sand Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 18
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 11
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 abstract description 6
- 239000011593 sulfur Substances 0.000 abstract description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005276 aerator Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 residual harmful gas Chemical compound 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model provides a biogas purifying device, which comprises a box body, a first filter cavity, a second filter cavity, a baffle plate and a baffle-shaped air passage; the utility model is provided with a first filter cavity, a second filter cavity and a baffling air passage, when the generated biogas is filtered by solid particles in the first filter cavity, then flows into a desulfurization solution for primary desulfurization, and finally the desulfurization agent flowing through the inside of the baffling air passage is subjected to dry desulfurization, so that hydrogen sulfide and sulfur-containing impurities in the biogas are eliminated; therefore, the utility model removes the residual impurities in the methane and relieves the corrosion and blockage of the metal pipeline, the valve and the flowmeter. The content of hydrogen sulfide is reduced, so that less sulfur dioxide and sulfurous acid are generated after the biogas is combusted, thereby reducing the corrosion of the metal surface of equipment and simultaneously preventing the pollution of sulfur dioxide to the atmosphere.
Description
Technical Field
The utility model relates to the technical field of biogas purification, in particular to a biogas purification device.
Background
Biogas is a combustible gas generated by fermenting organic substances under anaerobic conditions by microorganisms. This gas is known as biogas, since it was first found in swamps. The waste water biological treatment method in the high-concentration cultivation waste water two-stage anaerobic treatment system mainly adopts an anaerobic biological treatment technology, and under the anaerobic (no oxygen) condition, methane can be generated in a first-stage anaerobic methane tank in the high-concentration cultivation waste water two-stage anaerobic treatment system, but because the methane is generated from the first-stage anaerobic methane tank, partial solid particles, hydrogen sulfide and other substances can be carried, and the mixed substances accelerate the corrosion and blockage of metal pipelines, valves and flow meters. In addition, sulfur dioxide generated after the combustion of hydrogen sulfide is combined with water vapor in combustion products to form sulfurous acid, so that the metal surface of equipment is corroded, and the pollution to the atmosphere environment is caused, thereby affecting the health of human bodies.
Disclosure of utility model
The utility model aims to provide a methane purifying device which aims to solve the problems of the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: including the top be equipped with the box of blast pipe, install in first filter chamber bottom the box is internal bottom and place the second filter chamber of desulfurization solution, install in a plurality of baffles of box inside, first filter chamber is inside to be equipped with the filter layer that is used for filtering solid particles, first filter chamber is equipped with the intake pipe that can supply marsh gas to get into just the outlet duct intercommunication of first filter chamber the bottom of second filter chamber, the gas outlet of outlet duct is located the liquid level below of desulfurization solution, form baffling shape air flue between the baffles, be equipped with the desulfurizing agent on the air flue, be equipped with on the baffle of bottommost and supply filtering gas inflow the breach of shape air flue, the breach is located and keeps away from the one end of first filter chamber.
Further, the gas outlet of outlet duct intercommunication has annular aeration pipe, be equipped with the aeration hole on the aeration pipe, the aeration pipe is located the bottom of second filter chamber just annular aeration pipe is located the liquid level below of desulfurization solution.
Further, a plurality of filter screen plates are arranged in the first filter cavity, and a quartz sand layer is arranged between two adjacent filter screen plates.
Further, the air outlet pipe is positioned at the upper part of the first filter cavity, and the joint of the air outlet pipe and the first filter cavity is positioned above the liquid level of the desulfurization solution.
Further, the baffling air flue is provided with three layers, each layer of baffling air flue is provided with a filtering frame, and the interiors of the three filtering frames are respectively filled with desulfurizing agents, limestone and active carbon.
Further, the three filter frames are sequentially provided with the desulfurizing agent, the limestone and the activated carbon from bottom to top.
Further, a plurality of cleaning grooves aligned with the filtering frames are formed in the box body, a detachable sealing plate is arranged on the outer wall of the box body, and the sealing plate is aligned with the cleaning grooves.
Further, a sealing groove which can be extruded by the sealing plate is formed in the box body, a sealing ring is arranged on the sealing groove and extends out of the sealing groove, and the sealing groove is located on the outer wall of the box body around the cleaning groove.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model is provided with a first filter cavity, a second filter cavity and a baffling air passage, the generated biogas is filtered by solid particles in the first filter cavity, then flows into a desulfurization solution for primary desulfurization, and finally is subjected to dry desulfurization by a desulfurizing agent flowing through the inside of the baffling air passage, so that hydrogen sulfide and sulfur-containing impurities in the biogas are eliminated; therefore, the utility model removes the residual impurities in the methane and relieves the corrosion and blockage of the metal pipeline, the valve and the flowmeter. The content of hydrogen sulfide is reduced, so that less sulfur dioxide and sulfurous acid are generated after the biogas is combusted, thereby reducing the corrosion of the metal surface of equipment and simultaneously preventing the pollution of sulfur dioxide to the atmosphere.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the complete structure of the present utility model;
fig. 2 is a schematic cross-sectional view of the present utility model.
Wherein: 1. a case; 11. an exhaust pipe; 12. a sealing plate; 13. cleaning the groove; 14. an air inlet pipe; 2. a first filter chamber; 21. a filter screen plate; 22. an air outlet pipe; 23. an annular aerator pipe; 24. a quartz sand layer; 3. a second filter chamber; 31. a notch; 4. a baffle plate; 41. a filter frame; 42. a baffled airway.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Examples: referring to fig. 1-2, a biogas purifying device comprises a box body 1 with an exhaust pipe 11 at the top, a first filter cavity 2 arranged at the bottom of the box body 1, a second filter cavity 3 arranged at the inner bottom of the box body 1 and used for placing a desulfurization solution, and a plurality of baffle plates 4 arranged in the box body 1, wherein the desulfurization solution is a NaOH solution and is used for recovering sulfur-containing gases such as hydrogen sulfide gas in biogas; the inside of the first filter cavity 2 is provided with a filter layer for filtering solid particles, the first filter cavity 2 is provided with an air inlet pipe 14 for methane to enter, an air outlet pipe 22 of the first filter cavity 2 is communicated with the bottom of the second filter cavity 3, an air outlet of the air outlet pipe 22 is positioned below the liquid level of the desulfurization solution, a baffled air passage 42 is formed between the baffle plates 4, a desulfurizing agent is arranged on the air passage, a notch 31 for filtering the gas to flow into the baffled air passage 42 is arranged on the baffle plate 4 at the bottommost part, and the notch 31 is positioned at one end far away from the first filter cavity 2; the first filter cavity 2 is internally provided with three filter screen plates 21, a quartz sand layer 24 is arranged between two adjacent filter screen plates 21 and used for primary purification of methane, solid particles are prevented from entering into a desulfurization solution to influence the desulfurization effect of the desulfurization solution, and the filter screen plates 21 are provided with vent holes, so that gas can flow through on one hand, and a supporting effect is achieved on the quartz sand layer 24 on the other hand; the biogas generated in the anaerobic treatment system flows through the quartz sand layer 24 to filter solid particles in the biogas, the filtered biogas is introduced into the NaOH solution for primary desulfurization, and finally, the desulfurizing agent flowing through the inside of the folded-flow air passage 42 is subjected to dry desulfurization, so that hydrogen sulfide and sulfur-containing impurities in the biogas are eliminated; therefore, the utility model removes the residual impurities in the methane and relieves the corrosion and blockage of the metal pipeline, the valve and the flowmeter. The content of hydrogen sulfide is reduced, so that less sulfur dioxide and sulfurous acid are generated after the biogas is combusted, thereby reducing the corrosion of the metal surface of equipment and simultaneously preventing the pollution of sulfur dioxide to the atmosphere.
In the embodiment, the air outlet of the air outlet pipe 22 is communicated with an annular aeration pipe 23, the aeration pipe is provided with an aeration hole, the aeration pipe is positioned at the bottom of the second filter cavity 3, and the annular aeration pipe 23 is positioned below the liquid level of the desulfurization solution, so that the biogas is fully contacted with the desulfurization solution, and the desulfurization quality of the biogas is improved; in addition, the outlet duct 22 is located in the upper portion of the first filter chamber 2 and the junction of the outlet duct 22 and the first filter chamber 2 is located above the liquid level of the desulfurization solution, preventing the desulfurization solution from flowing backward into the first filter chamber 2.
In the embodiment, the baffling air passage 42 is provided with three layers, each layer of baffling air passage 42 is provided with a filtering frame 41, the three filtering frames 41 are respectively filled with a desulfurizing agent, limestone and active carbon, the baffling air passage 42 improves the stay time of the marsh gas in the filtering frames 41 and is beneficial to improving the purification quality of the marsh gas, wherein the desulfurizing agent is used for carrying out secondary desulfurization on the marsh gas, sulfur-containing impurities in the marsh gas are further reduced, the active carbon absorbs peculiar smell in the marsh gas, namely residual harmful gas, and the limestone effectively absorbs moisture in the marsh gas, so that the purification quality of the marsh gas is improved; in addition, the inside of the three filter frames 41 is sequentially provided with a desulfurizing agent, limestone and active carbon from bottom to top, and the active carbon is arranged behind the limestone according to the gas flow direction, so that dust in the limestone is prevented from being carried out of the device by biogas.
The box body 1 is provided with a plurality of cleaning grooves 13 aligned with the filter frames 41, the outer wall of the box body 1 is provided with a detachable sealing plate 12, and the sealing plate 12 is aligned with the cleaning grooves 13, so that the filter frames 41 are convenient to disassemble and assemble, and the desulfurizing agent, limestone and active carbon in the filter frames 41 can be replaced, and the practicability of the device is improved; the box body 1 is provided with a sealing groove which can be extruded by the sealing plate 12, the sealing groove is provided with a sealing ring, the sealing ring extends out of the sealing groove, and the sealing groove is positioned on the outer wall of the box body 1 around the cleaning groove 13 to prevent biogas from overflowing from the cleaning groove 13.
Principle of operation
When the biogas is required to be filtered, the biogas firstly flows through the quartz sand layer 24, solid particles in the biogas are filtered, then the solid particles are introduced into the NaOH solution for primary desulfurization, and then the desulfurizer flowing through the inside of the folded-flow air passage 42 is subjected to dry desulfurization, so that hydrogen sulfide and sulfur-containing impurities in the biogas are eliminated; then removing water through limestone, and finally filtering through active carbon; therefore, the utility model removes the residual impurities in the methane and relieves the corrosion and blockage of the metal pipeline, the valve and the flowmeter. The content of hydrogen sulfide is reduced, so that less sulfur dioxide and sulfurous acid are generated after the biogas is combusted, thereby reducing the corrosion of the metal surface of equipment and simultaneously preventing the pollution of sulfur dioxide to the atmosphere.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," "front," "back," and the like are used herein for illustrative purposes only.
Claims (8)
1. A biogas purification device, which is characterized in that: including the top be equipped with box (1) of blast pipe (11), install in first filter chamber (2) of box (1) bottom, locate bottom and placed desulfurization solution's second filter chamber (3) in box (1), install in a plurality of baffling boards (4) of box (1) inside, first filter chamber (2) inside is equipped with the filter layer that is used for filtering solid particles, first filter chamber (2) are equipped with intake pipe (14) that can supply marsh gas to get into just outlet duct (22) intercommunication of first filter chamber (2) the bottom of second filter chamber (3), the gas outlet of outlet duct (22) is located desulfurization solution's liquid level below, form air flue shaped air flue (42) between baffle (4), be equipped with the desulfurizing agent on the baffle (4) of bottommost be equipped with on baffle (4) and supply filtering gas inflow baffling board shaped air flue (42) breach (31), breach (31) are located keep away from the one end of first filter chamber (2).
2. Biogas cleaning apparatus according to claim 1, characterized in that: the gas outlet of the gas outlet pipe (22) is communicated with an annular aeration pipe (23), an aeration hole is formed in the aeration pipe, the aeration pipe is positioned at the bottom of the second filter cavity (3), and the annular aeration pipe (23) is positioned below the liquid level of the desulfurization solution.
3. Biogas cleaning apparatus according to claim 1, characterized in that: a plurality of filter screen plates (21) are arranged in the first filter cavity (2), and a quartz sand layer (24) is arranged between two adjacent filter screen plates (21).
4. Biogas cleaning apparatus according to claim 1, characterized in that: the air outlet pipe (22) is positioned at the upper part of the first filter cavity (2), and the joint of the air outlet pipe (22) and the first filter cavity (2) is positioned above the liquid level of the desulfurization solution.
5. Biogas cleaning apparatus according to claim 1, characterized in that: the baffling air flue (42) is provided with three layers, each layer of baffling air flue (42) is provided with a filtering frame (41), and the interiors of the three filtering frames (41) are respectively filled with desulfurizing agents, limestone and activated carbon.
6. Biogas cleaning apparatus according to claim 5, characterized in that: the three filter frames (41) are sequentially filled with the desulfurizing agent, the limestone and the activated carbon from bottom to top.
7. The biogas purification apparatus of claim 6, wherein: the box body (1) is provided with a plurality of cleaning grooves (13) aligned with the filtering frames (41), the outer wall of the box body (1) is provided with a detachable sealing plate (12), and the sealing plate (12) is aligned with the cleaning grooves (13).
8. The biogas purification apparatus of claim 7, wherein: the novel cleaning device is characterized in that a sealing groove capable of being extruded by the sealing plate (12) is formed in the box body (1), a sealing ring is arranged on the sealing groove and extends out of the sealing groove, and the sealing groove is located on the outer wall of the box body (1) around the cleaning groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322621622.3U CN220976899U (en) | 2023-09-26 | 2023-09-26 | Methane purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322621622.3U CN220976899U (en) | 2023-09-26 | 2023-09-26 | Methane purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220976899U true CN220976899U (en) | 2024-05-17 |
Family
ID=91058992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322621622.3U Active CN220976899U (en) | 2023-09-26 | 2023-09-26 | Methane purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220976899U (en) |
-
2023
- 2023-09-26 CN CN202322621622.3U patent/CN220976899U/en active Active
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| GR01 | Patent grant | ||
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