CN114272728A - Device for improving heat conduction efficiency of adsorption drying tower - Google Patents
Device for improving heat conduction efficiency of adsorption drying tower Download PDFInfo
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- CN114272728A CN114272728A CN202111675616.5A CN202111675616A CN114272728A CN 114272728 A CN114272728 A CN 114272728A CN 202111675616 A CN202111675616 A CN 202111675616A CN 114272728 A CN114272728 A CN 114272728A
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- adsorption
- tower
- drying tower
- connecting pipe
- drying
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 84
- 238000001035 drying Methods 0.000 title claims abstract description 65
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002808 molecular sieve Substances 0.000 claims description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 5
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 21
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 15
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 12
- 230000008929 regeneration Effects 0.000 abstract description 10
- 238000011069 regeneration method Methods 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012855 volatile organic compound Substances 0.000 abstract description 6
- 230000035943 smell Effects 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 30
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 28
- 238000000034 method Methods 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000003463 adsorbent Substances 0.000 description 7
- 238000003795 desorption Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of adsorption drying towers, and discloses a device for improving heat conduction efficiency of an adsorption drying tower, which comprises a first adsorption tower, a first drying tower, a second adsorption tower and a second drying tower, wherein the top and the bottom of the first drying tower are respectively provided with a first four-way valve and a second four-way valve; according to the invention, CO2 gas discharged from the compressor firstly enters the dehydrator to remove water vapor, 90-95% of condensed water and impurities possibly dissolved in water molecules or mutually soluble with water are removed, then the gas enters the first adsorption tower through the first four-way valve and is adsorbed and removed with peculiar smells such as various volatile organic compounds, benzene, formaldehyde and the like by utilizing the broad-spectrum adsorption performance of the activated carbon through the activated carbon base layer, the advantages of good heat conduction effect, high heat utilization rate and capability of being adjusted randomly according to the requirements of users can be realized, the structure is simple, the regeneration time is short, the consumption of the regenerated gas is low, and the recovery amount is usually 3-5%.
Description
Technical Field
The invention relates to the technical field of adsorption drying towers, in particular to a device for improving heat conduction efficiency of an adsorption drying tower.
Background
The adsorption dryer is mainly used for adsorbing and drying various types of CO2 gases, removing peculiar smell, odor, volatile organic compounds and water, ensuring that the gases have no peculiar smell and extremely high dryness, in order to remove various impurities in the CO2 gas and ensure that the recovered CO2 meets the requirements of industrial grade, food grade and high purity CO2 gas, water, volatile organic compounds, methanol, ethanol, formaldehyde, benzene and hydrocarbon which are mixed in the gases are effectively adsorbed and desorbed by various adsorbents in a drying adsorption tower through a PTSA principle, the regeneration of adsorption drying is usually realized by heating regenerated gases to 150-300 ℃ through an external electric heating gas and then introducing the regenerated gases into a regeneration tower to heat and desorb various saturated adsorbents, the adsorbent in the tower body is heated to more than 180-270 ℃ to realize desorption, the common heating method is a simple method which heats the regenerated gases by means of electric heating, and then the heated gas transfers heat to the adsorbent in the tower through flowing, the method has low heat utilization efficiency, long regeneration time, poor regeneration effect and large regenerated gas consumption, the adsorbent in the tower is difficult to heat to an ideal desorption temperature, especially the adsorbent at the bottom of the tower core and the tower body cannot be heated at all, the product quality of CO2 is difficult to ensure for a long time due to the poor desorption effect, and the regenerated gas consumption is 7-10% of the recovery amount.
Disclosure of Invention
The invention aims to provide a device for improving heat conduction efficiency of an adsorption drying tower, which has the advantages of good heat conduction effect, high heat utilization rate and capability of being adjusted randomly according to the requirements of users, and solves the problems that the existing adsorption drying tower is low in heat utilization rate, long in regeneration time and difficult to heat an adsorbent in the tower to an ideal desorption temperature.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a device that adsorption drying tower improved heat conduction efficiency, includes first adsorption tower, first drying tower, second adsorption tower and second drying tower, the top and the bottom of first drying tower are provided with first cross valve and second cross valve respectively, the top of second cross valve is provided with first external electric heater, the external electric heater of second and the external electric heater of third respectively, first outer nation heater is all installed in the front of first adsorption tower and first drying tower, the outer nation heater of second is all installed in the front of second adsorption tower and second drying tower.
Preferably, four ports of first cross valve are fixed the cover respectively and are connected first connecting pipe, second connecting pipe, third connecting pipe and fourth connecting pipe, the other end of first connecting pipe and second connecting pipe respectively with first adsorption tower and second adsorption tower intercommunication, the other end of third connecting pipe and first external electric heater's bottom bolt joint, four ports of second cross valve are fixed the cover respectively and are connected fifth connecting pipe, sixth connecting pipe, seventh connecting pipe and eighth connecting pipe, the other end of fifth connecting pipe and sixth connecting pipe respectively with the outer heater intercommunication of first outer nation heater and second.
Preferably, the other end of the second connecting pipe is communicated with a dehydrator.
Preferably, first temperature sensor is all installed in first external electric heater, the external electric heater of second and the external electric heater's of third front, second temperature sensor is all installed in the front of first adsorption tower, first drying tower, first outer nation heater, second adsorption tower, second drying tower and the outer nation heater of second.
Preferably, valves are installed on the surfaces of the second connecting pipe and the seventh connecting pipe.
Preferably, perlite cotton sleeves are fixedly sleeved on the surfaces of the first adsorption tower, the first drying tower, the second adsorption tower and the second drying tower.
Preferably, a plurality of activated carbon base layers are installed in the first adsorption tower and the second adsorption tower, and a plurality of molecular sieve adsorption layers are installed in the first drying tower and the second drying tower.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, CO2 gas discharged from the compressor firstly enters the dehydrator to remove water vapor, 90-95% of condensed water and impurities possibly dissolved in water molecules or mutually soluble with water are removed, then the gas enters the first adsorption tower through the first four-way valve and is adsorbed and removed with peculiar smells such as various volatile organic compounds, benzene, formaldehyde and the like by utilizing the broad-spectrum adsorption performance of the activated carbon through the activated carbon base layer, the advantages of good heat conduction effect, high heat utilization rate and capability of being adjusted randomly according to the requirements of users can be realized, the structure is simple, the regeneration time is short, the consumption of the regenerated gas is low, and the recovery amount is usually 3-5%.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic front sectional view of the structure of the present invention.
In the figure: 1. a first adsorption tower; 2. a first drying tower; 3. a second adsorption column; 4. a second drying tower; 5. a first four-way valve; 6. a second four-way valve; 7. a first external electric heater; 8. a second external electric heater; 9. a third external electric heater; 10. a first outer upper heater; 11. a second outer heater; 12. a first connecting pipe; 13. a second connecting pipe; 14. a third connecting pipe; 15. a fourth connecting pipe; 16. a fifth connecting pipe; 17. a sixth connecting pipe; 18. a seventh connecting pipe; 19. an eighth connecting pipe; 20. a dehydrator; 21. a first temperature sensor; 22. a second temperature sensor; 23. a valve; 24. a perlite cotton sleeve; 25. an activated carbon base layer; 26. and a molecular sieve adsorption layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a device for improving heat conduction efficiency of an adsorption drying tower includes a first adsorption tower 1, a first drying tower 2, a second adsorption tower 3 and a second drying tower 4, a first four-way valve 5 and a second four-way valve 6 are respectively arranged at the top and the bottom of the first drying tower 2, a first external electric heater 7, a second external electric heater 8 and a third external electric heater 9 are respectively arranged above the second four-way valve 6, a first outer bond heater 10 is respectively arranged on the front surfaces of the first adsorption tower 1 and the first drying tower 2, a second outer bond heater 11 is respectively arranged on the front surfaces of the second adsorption tower 3 and the second drying tower 4, CO2 gas discharged from a compressor firstly enters a dehydrator 20 to remove water vapor, 90-95% condensed water and impurities possibly dissolved in water molecules or dissolved in water are removed, then the gas enters the first adsorption tower 1 through the first four-way valve 5 and is removed through broad-spectrum adsorption of active carbon by using the active carbon base layer 25 The novel solar heat collector has the advantages of good heat conduction effect, high heat utilization rate, capability of being adjusted randomly according to the requirements of users, simple structure, short regeneration time, low regeneration gas consumption and capability of generally recycling 3-5%.
Further, four ports of the first four-way valve 5 are respectively fixedly sleeved with a first connecting pipe 12, a second connecting pipe 13, a third connecting pipe 14 and a fourth connecting pipe 15, the other ends of the first connecting pipe 12 and the second connecting pipe 13 are respectively communicated with the first adsorption tower 1 and the second adsorption tower 3, the other end of the third connecting pipe 14 is bolted with the bottom of the first external electric heater 7, four ports of the second four-way valve 6 are respectively fixedly sleeved with a fifth connecting pipe 16, a sixth connecting pipe 17, a seventh connecting pipe 18 and an eighth connecting pipe 19, and the other ends of the fifth connecting pipe 16 and the sixth connecting pipe 17 are respectively communicated with the first external heater 10 and the second external heater 11.
Further, the other end of the second connecting pipe 13 is communicated with a dehydrator 20, and water vapor in the gas can be removed through the dehydrator 20.
Further, a first temperature sensor 21 is installed on the front faces of the first external electric heater 7, the second external electric heater 8 and the third external electric heater 9, a second temperature sensor 22 is installed on the front faces of the first adsorption tower 1, the first drying tower 2, the first outer upper heater 10, the second adsorption tower 3, the second drying tower 4 and the second outer upper heater 11, and the working personnel can know the internal temperature in real time through the arrangement of the first temperature sensor 21 and the second temperature sensor 22.
Further, valves 23 are mounted on the surfaces of the second connecting pipe 13 and the seventh connecting pipe 18, and through the arrangement of the valves 23, the second connecting pipe 13 and the seventh connecting pipe 18 can be conveniently opened or closed by a worker at any time.
Further, the surface of first adsorption tower 1, first drying tower 2, second adsorption tower 3 and second drying tower 4 is all fixed the cover and is connected with the cotton cover of pearlite 24, through the setting of the cotton cover of pearlite 24, can reduce the inside thermal loss of first adsorption tower 1, first drying tower 2, second adsorption tower 3 and second drying tower 4.
Further, a plurality of activated carbon base layers 25 are installed inside the first adsorption tower 1 and the second adsorption tower 3, a plurality of molecular sieve adsorption layers 26 are installed inside the first drying tower 2 and the second drying tower 4, odor of various volatile organic compounds, benzene, formaldehyde and the like contained in the gas can be removed through the arrangement of the activated carbon base layers 25, and adsorption and purification can be performed on hydrocarbons below water, O2, N2, CO2, methanol, ethanol and C3 in the gas through the arrangement of the molecular sieve adsorption layers 26.
The working principle is as follows: the CO2 gas coming out of the compressor firstly enters a dehydrator 20 to remove water vapor, 90-95% of condensed water and impurities possibly dissolved in water molecules or mutually soluble with water are removed, then the gas enters a first adsorption tower 1 through a first four-way valve 5 and is adsorbed and removed with peculiar smells of various volatile organic compounds, benzene, formaldehyde and the like through an activated carbon base layer 25 by utilizing the broad-spectrum adsorption performance of activated carbon, then the CO2 gas comes out of the first adsorption tower 1 and enters a first drying tower 2, the CO2 gas passing through the first drying tower 2 is respectively adsorbed and purified on water, O2, N2, CO2, methanol, ethanol and hydrocarbons below C3 by utilizing the adsorption polarities of different molecular sieves and the molecular diameter characteristics of the adsorbed impurities through a molecular sieve adsorption layer 26, at the moment, the dew point of the CO2 gas coming out of the first adsorption tower 1 and the first drying tower 2 can reach-75 to-80 ℃, the content of various impurities can be removed to PPM level to meet the requirement of food additives, so that the whole adsorption process is completed, then CO2 gas enters a downstream liquefaction system, the second adsorption tower 3 and the second drying tower 4 start to regenerate when the first adsorption tower 1 and the first drying tower 2 work, the regeneration gas enters the first external electric heater 7, then-25 ℃ low-temperature gas is heated to +200 ℃ to +280 ℃, the heated gas is firstly conducted to the tower core of the first adsorption tower 1 through a heat conduction pipe in the center of the tower body, and then is conducted to the inner periphery of the tower through the heat conduction pipe.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a device that adsorption drying tower improves heat conduction efficiency, includes first adsorption tower (1), first drying tower (2), second adsorption tower (3) and second drying tower (4), its characterized in that: the top and the bottom of first drying tower (2) are provided with first cross valve (5) and second cross valve (6) respectively, the top of second cross valve (6) is provided with first external electric heater (7), the external electric heater of second (8) and the external electric heater of third (9) respectively, first outer nation heater (10) is all installed in the front of first adsorption tower (1) and first drying tower (2), the outer nation heater of second (11) is all installed in the front of second adsorption tower (3) and second drying tower (4).
2. The apparatus of claim 1, wherein the adsorption drying tower further comprises: four ports of first cross valve (5) are fixed respectively and have been cup jointed first connecting pipe (12), second connecting pipe (13), third connecting pipe (14) and fourth connecting pipe (15), the other end of first connecting pipe (12) and second connecting pipe (13) communicates with first adsorption tower (1) and second adsorption tower (3) respectively, the other end of third connecting pipe (14) and the bottom bolt of first external electric heater (7), four ports of second cross valve (6) are fixed respectively and are fixed the cover and have been connected fifth connecting pipe (16), sixth connecting pipe (17), seventh connecting pipe (18) and eighth connecting pipe (19), the other end of fifth connecting pipe (16) and sixth connecting pipe (17) communicates with first outer nation heater (10) and second outer nation heater (11) respectively.
3. The apparatus of claim 2, wherein the adsorption drying tower further comprises: the other end of the second connecting pipe (13) is communicated with a dehydrator (20).
4. The apparatus of claim 1, wherein the adsorption drying tower further comprises: first temperature sensor (21) are all installed in the front of first external electric heater (7), the external electric heater of second (8) and the external electric heater of third (9), second temperature sensor (22) are all installed in the front of first adsorption tower (1), first drying tower (2), first outer nation heater (10), second adsorption tower (3), second drying tower (4) and the outer nation heater of second (11).
5. The apparatus of claim 2, wherein the adsorption drying tower further comprises: and valves (23) are arranged on the surfaces of the second connecting pipe (13) and the seventh connecting pipe (18).
6. The apparatus of claim 1, wherein the adsorption drying tower further comprises: the surfaces of the first adsorption tower (1), the first drying tower (2), the second adsorption tower (3) and the second drying tower (4) are all fixedly sleeved with perlite cotton sleeves (24).
7. The apparatus of claim 1, wherein the adsorption drying tower further comprises: a plurality of activated carbon base layers (25) are installed in the first adsorption tower (1) and the second adsorption tower (3), and a plurality of molecular sieve adsorption layers (26) are installed in the first drying tower (2) and the second drying tower (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111675616.5A CN114272728A (en) | 2021-12-31 | 2021-12-31 | Device for improving heat conduction efficiency of adsorption drying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111675616.5A CN114272728A (en) | 2021-12-31 | 2021-12-31 | Device for improving heat conduction efficiency of adsorption drying tower |
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| Publication Number | Publication Date |
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| CN114272728A true CN114272728A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111675616.5A Withdrawn CN114272728A (en) | 2021-12-31 | 2021-12-31 | Device for improving heat conduction efficiency of adsorption drying tower |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140331864A1 (en) * | 2011-12-09 | 2014-11-13 | Kawasaki Jukogyo Kabushiki Kaisha | Carbon dioxide separation apparatus |
| US20170136404A1 (en) * | 2014-03-20 | 2017-05-18 | Kawasaki Jukogyo Kabushiki Kaisha | Carbon dioxide separation and recovery system |
| CN110368780A (en) * | 2019-08-02 | 2019-10-25 | 浙江正大空分设备有限公司 | A kind of energy-saving pressure-variable adsorption tail gas recycle and the complete set of equipments and method utilized |
| CN209668780U (en) * | 2019-01-30 | 2019-11-22 | 南京亿碳科技有限公司 | A kind of regeneration gas preheating dual control protection carbon dioxide recovery system, in accordance |
| CN214287468U (en) * | 2020-10-27 | 2021-09-28 | 杭州优联超滤设备有限公司 | Waste heat regeneration adsorption drying system |
-
2021
- 2021-12-31 CN CN202111675616.5A patent/CN114272728A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140331864A1 (en) * | 2011-12-09 | 2014-11-13 | Kawasaki Jukogyo Kabushiki Kaisha | Carbon dioxide separation apparatus |
| US20170136404A1 (en) * | 2014-03-20 | 2017-05-18 | Kawasaki Jukogyo Kabushiki Kaisha | Carbon dioxide separation and recovery system |
| CN209668780U (en) * | 2019-01-30 | 2019-11-22 | 南京亿碳科技有限公司 | A kind of regeneration gas preheating dual control protection carbon dioxide recovery system, in accordance |
| CN110368780A (en) * | 2019-08-02 | 2019-10-25 | 浙江正大空分设备有限公司 | A kind of energy-saving pressure-variable adsorption tail gas recycle and the complete set of equipments and method utilized |
| CN214287468U (en) * | 2020-10-27 | 2021-09-28 | 杭州优联超滤设备有限公司 | Waste heat regeneration adsorption drying system |
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Application publication date: 20220405 |