CN203694886U - Absorption tower for biogas purification - Google Patents
Absorption tower for biogas purification Download PDFInfo
- Publication number
- CN203694886U CN203694886U CN201420053282.7U CN201420053282U CN203694886U CN 203694886 U CN203694886 U CN 203694886U CN 201420053282 U CN201420053282 U CN 201420053282U CN 203694886 U CN203694886 U CN 203694886U
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- gas
- absorption tower
- inlet pipe
- heat
- tower body
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Abstract
The utility model discloses an absorption tower for biogas purification and relates to a biogas processing device. The absorption tower comprises a tower body, wherein the tower body is provided with an air outlet arranged in the top and a water outlet arranged in the bottom; at least two heat and mass transfer units are arranged in the tower body in sequence from the top down; each heat and mass transfer unit comprises a water inlet pipe, a gas-liquid distributor, a mixing chamber and an air inlet pipe, which are arranged from the top down; the water inlet pipes are communicated with the corresponding gas-liquid distributors; the air inlet pipes are communicated with the corresponding mixing chambers; the mixing chambers are filled with a filler. According to the utility model, each heat and mass transfer unit is provided with the air inlet pipe and the water inlet pipe, and a plurality of gas-liquid reverse heat and mass transfer areas can be formed in the absorption tower; thus, the conditions of heat and mass transfer between biogas and water are improved, and the absorption tower is beneficial to increasing the biogas purification efficiency.
Description
Technical field
The utility model relates to a kind of biogas processing unit (plant), particularly a kind of absorption tower for methane purification.
Background technology
Biogas is a kind of not only ancient but also emerging regenerative resource, main component in biogas is methane (content is 50-60%) and carbon dioxide (content is 40-50%), wherein methane is also the main component of natural gas, the methane in biogas is purified out and just can instead of natural gas make compressed natural gas used as vehicle fuel (CNG) or inject gas ductwork.In recent years, technique has obtained approval in the industry, for the few oily present situation of deficency of China, has great importance.
Methane purification is become to the existing four kinds of technological means of natural gas: pressure WATER-WASHING METHOD, chemical absorption method, pressure swing adsorption method and membrane separation process.Wherein pressure WATER-WASHING METHOD utilizes water as absorbing raw material, and water can recycle, and cost of material is low and do not produce secondary pollution, is the most widely used technology.Absorption tower is of paramount importance part in the pure system and device of press water elution, it is the main place of biogas-heat transfer water mass transfer, biogas enters absorption tower from bottom, absorption tower, water carries out reverse flow absorption from top, remove carbon dioxide and hydrogen sulfide wherein, purified gas is discharged from tower top, then obtains qualified biogas after dehydration, rich solution is discharged by bottom, absorption tower, reusable edible after regeneration.But it is in practical engineering application process, and the design on existing absorption tower has occurred that some problems need to be optimized.The existing Chemical Engineering Design technology of design Main Basis on existing absorption tower, specifically do not consider for actual conditions, want methane purification to natural gas used for automobile rank (CNG) (methane content is greater than 97%), must to there is very large liquid-gas ratio, cause the gas-liquid distributor in the existing design in absorption tower easily to occur the phenomenon that gas is general and inhomogeneous, and affect packing layer liquid gas and be uniformly distributed.
And in actual biogas production process, the source of the gas of biogas can not guarantee conventionally as stable quantity, existing absorption tower treating capacity regulating power shortage, packing layer operating parameter can not be often in optimized state.
In addition, the gas outlet on existing absorption tower, containing supersaturation water, has increased load to follow-up gas dewatering, has also increased the rate of water make-up on absorption tower simultaneously.
Utility model content
The purpose of this utility model is to provide one can form plural gas-liquid conversed heat and mass region, and gas-liquid in tower is more evenly distributed, and improves the absorption tower for methane purification of methane purification rate.
For achieving the above object, the utility model proposes a kind of absorption tower for methane purification, comprise tower body, described tower body has the delivery port of being located at the gas outlet at its top and being located at its bottom, wherein, in described tower body, be sequentially with at least two heat and mass unit from top to bottom, each described heat and mass unit comprises the water inlet pipe, gas-liquid distributor, hybrid chamber and the air inlet pipe that arrange from top to bottom, described water inlet pipe and described gas-liquid distributor are connected, described air inlet pipe is connected with described hybrid chamber, in described hybrid chamber, is filled with filler.
Absorption tower for methane purification as above, wherein, described gas-liquid distributor comprises a chassis, described chassis is along being circumferentially connected on the inwall of described tower body, on described chassis, be uniformly distributed and be useful on by the riser of gas with for by the fluid hole of liquid, described riser and described fluid hole vertically run through respectively described chassis, and the upper surface that described riser protrudes from described chassis arranges.
Absorption tower for methane purification as above, wherein, the internal diameter of described riser is 20mm to 25mm, the diameter of described fluid hole is 6mm to 8mm.
Absorption tower for methane purification as above wherein, is also provided with demister in described tower body, and below, the contiguous described gas outlet of described demister arranges.
Compared with prior art, the utlity model has following characteristics and advantage:
The absorption tower for methane purification the utility model proposes, in absorption tower, be provided with plural heat and mass unit, each heat and mass unit is provided with air inlet pipe and water inlet pipe, can in absorption tower, form multiple gas-liquid conversed heat and mass region, and then effectively improved the heat and mass condition between the G&W of natural pond, be conducive to improve methane purification efficiency.
The absorption tower for methane purification the utility model proposes, in absorption tower, be provided with plural heat and mass unit, each heat and mass unit is provided with air inlet pipe and water inlet pipe, can carry out assignment of traffic to the natural pond G&W entering in absorption tower by multiple air inlet pipe and multiple water inlet pipe, the adjustability that increases absorption tower, finally makes absorption tower can be applicable to the variation of various inlet weight range.
Accompanying drawing explanation
Accompanying drawing described here is only for task of explanation, and limits never in any form the utility model scope of disclosure.In addition, shape and the proportional sizes etc. of the each parts in figure is only schematically, for helping understanding of the present utility model, is not shape and the proportional sizes that specifically limits the each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shapes and proportional sizes to implement the utility model as the case may be.
Fig. 1 is the structural representation of the utility model for the absorption tower of methane purification;
Fig. 2 is the side view of the utility model gas-liquid distributor;
Fig. 3 is the top view of the utility model gas-liquid distributor;
Fig. 4 is the enlarged drawing at A place in Fig. 3.
100-absorption tower; 110-tower body; 120-gas outlet; 130-delivery port; 140-heat and mass unit; 150-water inlet pipe; 160-gas-liquid distributor; 161-chassis; 162-riser; 163-fluid hole; 170-hybrid chamber; 180-air inlet pipe; 190-demister.
The specific embodiment
With the description of the utility model specific embodiment, can more be well understood to details of the present utility model by reference to the accompanying drawings.But the specific embodiment of the present utility model described here,, for explaining the purpose of this utility model, is only to restriction of the present utility model and can not be understood as by any way.Under instruction of the present utility model, technical staff can conceive based on possible distortion arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Please refer to Fig. 1, Fig. 1 is the structural representation of the utility model for the absorption tower of methane purification, as shown in Figure 1, absorption tower 100 for methane purification comprises tower body 110, tower body 110 has the gas outlet 120 of being located at its top and the delivery port 130 of being located at its bottom, in tower body 110, be sequentially with at least two heat and mass unit 140 from top to bottom, each heat and mass unit 140 comprises the water inlet pipe 150 arranging from top to bottom, gas-liquid distributor 160, hybrid chamber 170 and air inlet pipe 180, water inlet pipe 150 and gas-liquid distributor 160 are connected, air inlet pipe 180 is connected with hybrid chamber 170, in hybrid chamber 170, be filled with filler.
The utility model in use, biogas enters by air inlet pipe 180, water enters by water inlet pipe 150, natural pond G&W mixes in the hybrid chamber 170 of heat and mass unit 140, and in the gas-liquid conversed heat and mass of the interior formation of hybrid chamber 170 region of each heat and mass unit 140, avoid in prior art because tower body 110 is oversize and only have single reverse heat and mass region to make gas-liquid skewness also finally cause the situation of methane purification decrease in efficiency, be positioned at the plural gas-liquid conversed heat and mass region of tower body 110, can effectively improve the heat and mass condition between the G&W of natural pond, make the uniform gas-liquid distribution in each gas-liquid conversed heat and mass region, be conducive to improve methane purification efficiency.Finally, the biogas of carbon dioxide removal and hydrogen sulfide becomes purified gas discharges from gas outlet 120, is discharged by delivery port 130 and water after absorbing carbon dioxide and hydrogen sulfide becomes rich solution.Simultaneously, because natural pond G&W enters in absorption tower 100 by multiple air inlet pipe 180 and multiple water inlet pipe 150, can be by multiple air inlet pipe 180 and multiple water inlet pipe 150 carry out assignment of traffic to entering 100Nei natural pond, absorption tower G&W, the operating parameter on absorption tower 100 is increased, and then the adjustability on increase absorption tower 100, finally make absorption tower 100 can be applicable to the variation of various inlet weight range.
In the utility model, please refer to Fig. 2 to Fig. 4, Fig. 2 is the side view of the utility model gas-liquid distributor, Fig. 3 is the top view of the utility model gas-liquid distributor, Fig. 4 is the partial enlarged drawing at A place in Fig. 3, as Fig. 2, shown in Fig. 3 and Fig. 4, gas-liquid distributor 160 comprises a chassis 161, chassis 161 is along being circumferentially connected on the inwall of tower body 110, on chassis 161, be uniformly distributed and be useful on by the riser 162 of gas and for the fluid hole 163(by liquid as shown in Figure 4), riser 162 and fluid hole 163 vertically run through respectively chassis 161, the upper surface that riser 162 protrudes from chassis 161 arranges.Distance H (height of riser) between the upper surface on the upper limb of riser 162 and chassis 161 can be adjusted according to the actual conditions of liquid-gas ratio value, in the time that liquid-gas ratio value raises, distance H between the upper surface on the upper limb of riser 162 and chassis 161 is corresponding increase also, and then after avoiding liquid level to raise, water is through riser 162 overflows, cause the situation of gas-liquid distributor inefficacy, also guaranteed accordingly the efficiency of methane purification.
Further, as shown in Figure 2, the outer rim on chassis 161 is upturned and along being circumferentially connected with the inwall of tower body 110, like this, chassis 161 is plate-like, and is uniformly distributed riser 162 and fluid hole 163 in the scope of diameter D, thereby effectively prevents the overflow of liquid.
Further, the internal diameter of riser 162 is 20mm to 25mm, and the diameter of fluid hole 163 is 6mm to 8mm, to be adapted to the large situation of the interior liquid-gas ratio value of purifying column 100, guarantees that the interior natural pond of purifying column 100 G&W can be uniformly distributed.
In the utility model, in tower body 110, be also provided with demister 190,120 belows, the contiguous gas outlet of demister 190 arrange.Demister 190 can significantly reduce the water content in the biogas of exporting in gas outlet 120, and then has alleviated the load of follow-up gas dewatering, has also reduced the rate of water make-up on absorption tower simultaneously.
For the detailed explanation of the respective embodiments described above, its object is only the utility model to make an explanation, so that can understand better the utility model, but, it is to restriction of the present utility model that these descriptions can not be construed to any reason, particularly, each feature of describing in different embodiments also can be combined mutually, thereby form other embodiments, except there being clearly contrary description, these features should be understood to can be applied in any one embodiment, and are also not only confined to described embodiment.
Claims (4)
1. the absorption tower for methane purification, comprise tower body, described tower body has the delivery port of being located at the gas outlet at its top and being located at its bottom, it is characterized in that, in described tower body, be sequentially with at least two heat and mass unit from top to bottom, each described heat and mass unit comprises the water inlet pipe, gas-liquid distributor, hybrid chamber and the air inlet pipe that arrange from top to bottom, described water inlet pipe and described gas-liquid distributor are connected, described air inlet pipe is connected with described hybrid chamber, in described hybrid chamber, is filled with filler.
2. the absorption tower for methane purification as claimed in claim 1, it is characterized in that, described gas-liquid distributor comprises a chassis, described chassis is along being circumferentially connected on the inwall of described tower body, on described chassis, be uniformly distributed and be useful on by the riser of gas with for by the fluid hole of liquid, described riser and described fluid hole vertically run through respectively described chassis, and the upper surface that described riser protrudes from described chassis arranges.
3. the absorption tower for methane purification as claimed in claim 2, is characterized in that, the internal diameter of described riser is 20mm to 25mm, and the diameter of described fluid hole is 6mm to 8mm.
4. the absorption tower for methane purification as described in any one in claims 1 to 3, is characterized in that, is also provided with demister in described tower body, and below, the contiguous described gas outlet of described demister arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053282.7U CN203694886U (en) | 2014-01-27 | 2014-01-27 | Absorption tower for biogas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053282.7U CN203694886U (en) | 2014-01-27 | 2014-01-27 | Absorption tower for biogas purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203694886U true CN203694886U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420053282.7U Expired - Fee Related CN203694886U (en) | 2014-01-27 | 2014-01-27 | Absorption tower for biogas purification |
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| CN (1) | CN203694886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861371A (en) * | 2017-03-22 | 2017-06-20 | 常熟理工学院 | A kind of biogas pressure-variable adsorption tower apparatus |
-
2014
- 2014-01-27 CN CN201420053282.7U patent/CN203694886U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861371A (en) * | 2017-03-22 | 2017-06-20 | 常熟理工学院 | A kind of biogas pressure-variable adsorption tower apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151119 Address after: 025550 the Inner Mongolia Autonomous Region Chifeng city Alukerqinqi Tianshan Town New Energy Industrial Park Patentee after: Chifeng Yuan Yi Biomass Technology Co., Ltd. Address before: 100107, Chaoyang District Tianlong garden, block B, Beijing, 30, 3007 Patentee before: BEIJING JINYU BLUE SKY ECOLOGICAL ENERGY TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20210127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |