CN203379780U - Multi-tower type temperature swing adsorption concentration device of ventilation air marsh gas - Google Patents
Multi-tower type temperature swing adsorption concentration device of ventilation air marsh gas Download PDFInfo
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- CN203379780U CN203379780U CN201320395140.4U CN201320395140U CN203379780U CN 203379780 U CN203379780 U CN 203379780U CN 201320395140 U CN201320395140 U CN 201320395140U CN 203379780 U CN203379780 U CN 203379780U
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Abstract
The utility model discloses a multi-tower type temperature swing adsorption concentration device of ventilation air marsh gas. The multi-tower type temperature swing adsorption concentration device comprises a ventilation-air gas inlet pipe, a hot smoke pipe, a blowing-gas gas inlet pipe, a ventilation-air gas outlet pipe, a desorption gas outlet pipe, a blowing-gas gas outlet pipe and at least three adsorption towers, wherein each adsorption tower is provided with a first pipeline connector and a second pipeline connector; a marsh gas adsorption device is arranged between the first pipeline connector and the second pipeline connector of each adsorption tower. According to the multi-tower type temperature swing adsorption concentration device of the ventilation air marsh gas, a plurality of adsorption tower structures are adopted and the combination quantity of the adsorption towers can be selected according to ventilation air flow; the concentration of the ventilation air marsh gas is realized by a temperature swing adsorption process through utilizing the characteristics of adsorbing the marsh gas at the room temperature and desorbing at a high temperature of a marsh gas adsorption device; marsh gas desorption can be realized by waste hot smoke of a follow-up heat accumulation and oxidization device, so that the energy consumption of the system is low; all the adsorption towers in the device circularly have the effects of adsorbing at the room temperature, heating for desorbing, cooling for regenerating; the whole device has a high utilization rate and a strong marsh gas concentration capability.
Description
Technical field
The utility model relates to a kind of gas concentrator, particularly a kind of concentrator for ventilation air gas.
Background technology
Coal mine to ventilate mash gas claims again ventilation air gas, and its methane content is low and for want of effectively utilize mode and directly enter in atmosphere.The gas emission in China's coal-mine every year approximately has 80%～90%, in the mine ventilation mode, discharges.According to relevant statistics, the methane content entered in atmosphere by weary wind in 2008 has reached 161 billion cubic meters.Separately there are some researches show, the methane greenhouse effects are about 21 times of carbon dioxide, extremely strong to environmental destruction.Therefore, recycle ventilation air gas and there is energy-conservation and environmental protection double meaning.
In weary wind, the methane volume fraction is very low, and most coal mine wind-lack gas concentration is all below 0.3%.Process at present ventilation air gas and utilize hot counter flow oxidation technology more, existing many companies just carry out industrial test or apply in coal enterprise.But this technology has a bottleneck problem, only has the economical operation that just can realize equipment when ventilation air gas concentration maintains 1% left and right, thereby realize higher utilization efficiency of heat energy.Especially for coal enterprise, can't by the mode of blending mash gas extraction, promote in the situation of concentration, by Temp .-changing adsorption concentrate make ventilation air gas concentration be promoted to 1% just become especially important.
Only has at present minority unit in the research of carrying out the coal mine wind-lack gas Adsorption Concentration, patent documentation disclosed " in the methane-rich in mine air-lack and utilize method " (200910187318.4), " containing the separation absorption device of low-concentration methane gas " (200920203210.5) have all adopted the mode of pressure-variable adsorption to be concentrated ventilation air gas, the shortcoming of pressure-variable adsorption mode is the absorption of boosting frequently, energy consumption is higher, is unfavorable for the economical operation of total system.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility, this device adopts the mode of Temp .-changing adsorption, desorption process adopts the waste heat flue gas of follow-up regenerative oxidation device, to realize reducing the energy consumption of Adsorption Concentration device, improved the utilization efficiency of heat energy of a whole set of weary wind treatment system simultaneously.
The utility model multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility, comprise weary wind air inlet pipe, thermal chimney, sweep gas air inlet pipe, weary wind escape pipe, desorption escape pipe, sweep gas escape pipe and at least three adsorption towers, be provided with the first pipe joint and second pipe interface on each adsorption tower, and be provided with the gas adsorption device in adsorption tower between the first pipe joint and second pipe interface;
The first pipe joint of described weary wind air inlet pipe and each adsorption tower is communicated with by weary wind inlet valve respectively, and the second pipe interface of described weary wind escape pipe and each adsorption tower is communicated with by weary wind outlet valve;
The second pipe interface of described thermal chimney and each adsorption tower is communicated with by the desorption inlet valve respectively, and the first pipe joint of described desorption escape pipe and each adsorption tower is communicated with by the desorption valve respectively;
The second pipe interface of described sweep gas air inlet pipe and each adsorption tower is communicated with by the cold blowing inlet valve respectively, and the first pipe joint of described sweep gas escape pipe and each adsorption tower is communicated with by the cold blowing outlet valve respectively.
Further, the gas adsorption device of described gas adsorption device for being made by NACF, and the two ends of gas adsorption device are provided with the screen cloth be bolted.
Further, described adsorption tower is three or six.
Further, described multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility also comprises the refractory insulating layer be wrapped in outside adsorption tower.
The beneficial effects of the utility model:
1, the utility model multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility, it adopts a plurality of adsorption tower structures, can select according to weary wind flow size the number of combinations of adsorption tower, and utilize gas adsorption device adsorption gas, the characteristics of desorption at high temperature at normal temperatures, realize the concentrated of ventilation air gas by temperature swing adsorption process, and the gas desorption can utilize the waste heat flue gas of follow-up regenerative oxidation device to realize, system energy consumption is low, and can improve the utilization efficiency of heat energy of whole weary wind treatment system.
2, the utility model multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility, the normal temperature that plays a part that each adsorption tower wherein all circulates adsorbs, adds thermal desorption and cooling regeneration, and whole utilization ratio of device is high, and the gas concentrating capacity is strong.
3, the utility model multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility, large as the specific area of the NACF of gas adsorption device, the direct perforate of micropore is in fiber surface, and the selection advantages of good adsorption effect to methane, can well be concentrated ventilation air gas.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility, comprise weary wind air inlet pipe 1, thermal chimney 2, sweep gas air inlet pipe 3, weary wind escape pipe 4, desorption escape pipe 5, sweep gas escape pipe 6 and three adsorption towers 7, be provided with the first pipe joint 8 and second pipe interface 9 on each adsorption tower 7, and be provided with gas adsorption device 10 in adsorption tower 7 between the first pipe joint 8 and second pipe interface 9;
The first pipe joint 8 of described weary wind air inlet pipe 1 and each adsorption tower 7 is communicated with by weary wind inlet valve 11 respectively, and the second pipe interface 9 of described weary wind escape pipe 4 and each adsorption tower 7 is communicated with by weary wind outlet valve 12;
The second pipe interface 9 of described thermal chimney 2 and each adsorption tower 7 is communicated with by desorption inlet valve 13 respectively, and the first pipe joint 8 of described desorption escape pipe 5 and each adsorption tower 7 is communicated with by desorption valve 14 respectively;
The second pipe interface 9 of described sweep gas air inlet pipe 3 and each adsorption tower 7 is communicated with by cold blowing inlet valve 15 respectively, and the first pipe joint 8 of described sweep gas escape pipe 3 and each adsorption tower 7 is communicated with by cold blowing outlet valve 16 respectively.
In concrete enforcement, thermal chimney 2 is connected with follow-up weary wind regenerative oxidation device, thereby the hot flue gas of the part that weary wind regenerative oxidation device rear end is produced is introduced adsorption tower 7 and is realized adding thermal desorption, reduction plant energy consumption that can be very large, the while can be improved the utilization efficiency of heat energy of whole weary wind treatment system.
Below the workflow of the present embodiment three-tower type ventilation air gas Temp .-changing adsorption enrichment facility is elaborated, three adsorption towers are distinguished called after adsorption tower A, the adsorption tower B and adsorption tower C, three circulations of a complete course of work:
The absorption of circulation 1-adsorption tower A normal temperature, adsorption tower B add thermal desorption, adsorption tower C cold blowing regeneration:
Weary wind inlet valve 11 and the weary wind outlet valve 12 of adsorption tower A are opened, weary wind inlet valve 11 and the weary wind outlet valve 12 of all the other adsorption towers are closed, make weary wind enter adsorption tower A by weary wind inlet valve 11, after gas is adsorbed agent absorption, clean weary wind waste gas drains into weary wind escape pipe 4 through weary wind outlet valve 12, then emptying; Desorption inlet valve 13 and the desorption valve 14 of adsorption tower B are opened, desorption inlet valve 13 and the desorption valve 14 of all the other adsorption towers are closed, and the hot flue gas of desorption makes the adsorbate gas generation desorption retained in adsorption tower B and delivers to desorption escape pipe 5 with thermal current by adsorption tower B; Cold blowing inlet valve 15 and the cold blowing outlet valve 16 of adsorption tower C are opened, cold blowing inlet valve 15 and the cold blowing outlet valve 16 of all the other adsorption towers are closed simultaneously, make purging air enter adsorption tower C by cold blowing inlet valve 15, adsorption tower C is cooled to normal temperature to prepare to enter next adsorption process, then purging air enters sweep gas escape pipe 6 from cold blowing outlet valve 16, and weary wind escape pipe 4 converges rear emptying.
Circulation 2-adsorption tower A adds thermal desorption, adsorption tower B cold blowing regeneration, the absorption of adsorption tower C normal temperature:
Weary wind inlet valve 11 and the weary wind outlet valve 12 of adsorption tower C are opened, weary wind inlet valve 11 and the weary wind outlet valve 12 of all the other adsorption towers are closed, make weary wind enter adsorption tower C by weary wind inlet valve 11, after gas is adsorbed agent absorption, clean weary wind waste gas drains into weary wind escape pipe 4 through weary wind outlet valve 12, then emptying; Desorption inlet valve 13 and the desorption valve 14 of adsorption tower A are opened, desorption inlet valve 13 and the desorption valve 14 of all the other adsorption towers are closed, and the hot flue gas of desorption makes the adsorbate gas generation desorption retained in adsorption tower A and delivers to desorption escape pipe 5 with thermal current by adsorption tower A; Cold blowing inlet valve 15 and the cold blowing outlet valve 16 of adsorption tower B are opened, cold blowing inlet valve 15 and the cold blowing outlet valve 16 of all the other adsorption towers are closed simultaneously, make purging air enter adsorption tower B by cold blowing inlet valve 15, adsorption tower B is cooled to normal temperature to prepare to enter next adsorption process, then purging air enters sweep gas escape pipe 6 from cold blowing outlet valve 16, and weary wind escape pipe 4 converges rear emptying.
Circulation 3-adsorption tower A cold blowing regeneration, adsorption tower B heating adsorption, adsorption tower C normal temperature desorption:
Weary wind inlet valve 11 and the weary wind outlet valve 12 of adsorption tower B are opened, weary wind inlet valve 11 and the weary wind outlet valve 12 of all the other adsorption towers are closed, make weary wind enter adsorption tower B by weary wind inlet valve 11, after gas is adsorbed agent absorption, clean weary wind waste gas drains into weary wind escape pipe 4 through weary wind outlet valve 12, then emptying; Desorption inlet valve 13 and the desorption valve 14 of adsorption tower C are opened, desorption inlet valve 13 and the desorption valve 14 of all the other adsorption towers are closed, and the hot flue gas of desorption makes the adsorbate gas generation desorption retained in adsorption tower C and delivers to desorption escape pipe 5 with thermal current by adsorption tower C; Cold blowing inlet valve 15 and the cold blowing outlet valve 16 of adsorption tower A are opened, cold blowing inlet valve 15 and the cold blowing outlet valve 16 of all the other adsorption towers are closed simultaneously, make purging air enter adsorption tower A by cold blowing inlet valve 15, adsorption tower A is cooled to normal temperature to prepare to enter next adsorption process, then purging air enters sweep gas escape pipe 6 from cold blowing outlet valve 16, and weary wind escape pipe 4 converges rear emptying.
After circulation 3 finishes, return circulation 1, continuous operation goes round and begins again.The control module of can being open to the custom in implementation process arranges the switching of controlling each valve according to system.The three-tower type ventilation air gas Adsorption Concentration device course of work briefly is expressed as follows:
| ? | Adsorption tower A | Adsorption tower B | Adsorption |
| Circulation | |||
| 1 | Absorption | Desorption | Cold blowing |
| Circulation | |||
| 2 | Desorption | Cold blowing | Absorption |
| Circulation | |||
| 3 | Cold blowing regeneration | Absorption | Desorption |
Certainly in concrete enforcement, the adsorption tower quantity of this multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility can specifically be adjusted according to the size of weary wind flow, its quantity more than 3 and 3 all can, as can be 4,5,6,7 etc.
In reality, three-tower type ventilation air gas Adsorption Concentration device is applicable to little of medium weary wind flow, (generally be greater than 10000m3/h) when weary wind flow is larger, adopt six tower ventilation air gas Adsorption Concentration device effects better, in six adsorption towers: four adsorption towers are for normal temperature absorption, 1 adsorption tower is for adding thermal desorption, and 1 adsorption tower is for cold blowing regeneration.Equally, when treating capacity is larger, the tower of available greater number is combined.With the above-mentioned three-tower type Adsorption Concentration device course of work, analogize, the six tower ventilation air gas Adsorption Concentration device courses of work can mean as follows:
| ? | Adsorption tower A | Adsorption tower B | Adsorption tower C | Adsorption tower D | Adsorption tower E | Adsorption tower F |
| Circulation one | Absorption | Absorption | Absorption | Absorption | Desorption | Cold blowing |
| Circulation two | Absorption | Absorption | Absorption | Desorption | Cold blowing | Absorption |
| Circulation three | Absorption | Absorption | Desorption | Cold blowing | Absorption | Absorption |
| Circulation four | Absorption | Desorption | Cold blowing | Absorption | Absorption | Absorption |
| Circulation five | Desorption | Cold blowing | Absorption | Absorption | Absorption | Absorption |
| Circulation six | Cold blowing | Absorption | Absorption | Absorption | Absorption | Desorption |
As the improvement to the present embodiment, the gas adsorption device of described gas adsorption device 10 for being made by NACF, and the two ends of gas adsorption device 10 are provided with the screen cloth (screen cloth does not draw in the accompanying drawings) be bolted, the specific area of NACF is large, the direct perforate of micropore is in fiber surface, selection advantages of good adsorption effect to methane, can well be concentrated ventilation air gas; The two ends of gas adsorption device 10 are provided with the screen cloth be bolted simultaneously, are convenient to gas adsorption device 10 is changed.
As the improvement to the present embodiment, the present embodiment multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility also comprises the refractory insulating layer be wrapped in outside adsorption tower 7, refractory insulating layer does not draw in the drawings, in hot flue gas desorption process, the outside wall temperature of adsorption tower 7 is higher, refractory insulating layer is set and can avoids high temperature to damage the staff.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility is characterized in that:
Comprise weary wind air inlet pipe, thermal chimney, sweep gas air inlet pipe, weary wind escape pipe, desorption escape pipe, sweep gas escape pipe and at least three adsorption towers, be provided with the first pipe joint and second pipe interface on each adsorption tower, and be provided with the gas adsorption device in adsorption tower between the first pipe joint and second pipe interface;
The first pipe joint of described weary wind air inlet pipe and each adsorption tower is communicated with by weary wind inlet valve respectively, and the second pipe interface of described weary wind escape pipe and each adsorption tower is communicated with by weary wind outlet valve;
The second pipe interface of described thermal chimney and each adsorption tower is communicated with by the desorption inlet valve respectively, and the first pipe joint of described desorption escape pipe and each adsorption tower is communicated with by the desorption valve respectively;
The second pipe interface of described sweep gas air inlet pipe and each adsorption tower is communicated with by the cold blowing inlet valve respectively, and the first pipe joint of described sweep gas escape pipe and each adsorption tower is communicated with by the cold blowing outlet valve respectively.
2. multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility according to claim 1 is characterized in that: the gas adsorption device of described gas adsorption device for being made by NACF, and the two ends of gas adsorption device are provided with the screen cloth be bolted.
3. multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility according to claim 1, it is characterized in that: described adsorption tower is three or six.
4. multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility according to claim 1, is characterized in that: also comprise and be wrapped in the outer refractory insulating layer of adsorption tower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320395140.4U CN203379780U (en) | 2013-07-03 | 2013-07-03 | Multi-tower type temperature swing adsorption concentration device of ventilation air marsh gas |
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| CN201320395140.4U CN203379780U (en) | 2013-07-03 | 2013-07-03 | Multi-tower type temperature swing adsorption concentration device of ventilation air marsh gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301711A (en) * | 2013-07-03 | 2013-09-18 | 中煤科工集团重庆研究院 | Multi-tower type ventilation air methane temperature swing adsorption concentration device |
| CN104107620A (en) * | 2014-07-25 | 2014-10-22 | 西安交通大学 | CO2 purifying structure of solid amine embedded metallic aluminum foam |
| CN106215621A (en) * | 2016-09-19 | 2016-12-14 | 中国矿业大学 | A kind of methane adsorption concentration systems for extremely low concentration mash gas extraction |
-
2013
- 2013-07-03 CN CN201320395140.4U patent/CN203379780U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301711A (en) * | 2013-07-03 | 2013-09-18 | 中煤科工集团重庆研究院 | Multi-tower type ventilation air methane temperature swing adsorption concentration device |
| CN103301711B (en) * | 2013-07-03 | 2016-05-11 | 中煤科工集团重庆研究院有限公司 | Multi-tower type ventilation air gas Temp .-changing adsorption enrichment facility |
| CN104107620A (en) * | 2014-07-25 | 2014-10-22 | 西安交通大学 | CO2 purifying structure of solid amine embedded metallic aluminum foam |
| CN106215621A (en) * | 2016-09-19 | 2016-12-14 | 中国矿业大学 | A kind of methane adsorption concentration systems for extremely low concentration mash gas extraction |
| CN106215621B (en) * | 2016-09-19 | 2018-10-16 | 中国矿业大学 | A kind of methane adsorption concentration systems for extremely low concentration mash gas extraction |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE |
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| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: China Coal Technology Engineering Group Chongqing Research Institute Address before: 400039 Chongqing Jiulongpo Erlang Branch City Road No. 6 Patentee before: China Coal Science and Industry Group Chongqing Research Institute |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160703 |