CN109289438A - Active carbon adsorber - Google Patents
Active carbon adsorber Download PDFInfo
- Publication number
- CN109289438A CN109289438A CN201811366637.7A CN201811366637A CN109289438A CN 109289438 A CN109289438 A CN 109289438A CN 201811366637 A CN201811366637 A CN 201811366637A CN 109289438 A CN109289438 A CN 109289438A
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- China
- Prior art keywords
- heat exchange
- pipe
- long straight
- sleeve
- branch pipe
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 33
- 239000006096 absorbing agent Substances 0.000 claims abstract description 58
- 239000003463 adsorbent Substances 0.000 claims abstract description 36
- 238000012546 transfer Methods 0.000 claims abstract description 25
- 230000003416 augmentation Effects 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 11
- 230000009467 reduction Effects 0.000 description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 8
- 230000003247 decreasing effect Effects 0.000 description 6
- 238000003795 desorption Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010572 single replacement reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Gases By Adsorption (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of active carbon adsorbers, comprising: absorber main body has adsorbent entrance, gas access and gas vent, and lower end is lower head, and the outer wall of absorber main body is equipped with heat transfer structure；Spigot-and-socket sheath assembly, comprising: supervisor, supervisor include interior supervisor and outer supervisor；Branch pipe, including interior branch pipe and outer branch pipe, interior branch pipe and interior supervisor's vertical connection, outer branch pipe and outer supervisor's vertical connection；Long straight pipe, including the straight inner casing tube of length and long straight pipe outer tube, long straight inner casing tube and interior branch pipe use bell and spigot frame vertical connection, long straight pipe outer tube and outer branch pipe vertical connection；Heat exchange sleeve, including heat exchange inner sleeve and heat exchange outer tube, heat exchange inner sleeve and long straight inner casing tube use bell and spigot frame vertical connection, the other end of heat exchanger tube outer tube and long straight pipe outer tube vertical connection, and the outer tube that exchanges heat passes through lower head and is inserted into absorber body interior；Skirt, skirt are connected with absorber main body.
Description
Technical field
The invention belongs to absorber fields, specifically, the present invention relates to active carbon adsorbers.
Background technique
Active carbon adsorber is the key that purify setting to the hydrogen in reduction tail gas in polysilicon Dry recovery technique
It is standby, it is one of the capital equipment for realizing " improved Siemens " closed-loop control.As its name suggests, what is be substantially carried out in the equipment is object
Adsorption process is managed, is to be adsorbed to other impurities gas in addition to the hydrogen, and then realize and followed to high-purity hydrogen after absorption
Ring utilizes.
Currently, activated carbon adsorption prevailing technology is realized under conditions of alternating temperature transformation, pass through the control of pressure and temperature
System and adjusting shorten the adsorbent reactivation time to improve adsorption efficiency.Relative to pressure control, because adsorbent heat transfer it is special
The complexity of property and device structure, causes to be difficult reality to the flexible modulation of adsorbent temperature and the uniformity controlling of adsorbent temperature
It is existing.
In order to solve temperature controlled relevant issues in absorber, prior art generally in the inside of active carbon adsorber and
Outside setting temperature-controlling component, the heat-exchanging component of inside setting mainly include set of heat exchange tubes and various inner coil pipes, the control of outside setting
Warm component mainly includes collet and outer endless tube.Such as the absorption of set of heat exchange tubes is set inside a kind of existing external setting collet
Tower, set of heat exchange tubes is stepped, is connected in series；Setting hollow inner cylinder and inner coil pipe inside a kind of, outside are arranged outer coil pipe and add
The multilayer adsorption tower of heat；A kind of outer wall is arranged outer semicanal endless tube, and inside uses cannula structure inline tube, and adsorption column inner sleeve and
Inner sleeve endless tube uses the adsorption column etc. of flanged joint.
Although the heat-exchanging component in existing active carbon adsorber controls to a certain extent the temperature of adsorbent and absorption
The raising of device heat exchange efficiency has positive effect, but has some problem values that must discuss.
For concatenated ladder-like heat exchange tube assemblies, heat exchange efficiency needs to be further increased；Coil pipe subtracts when for manufacture
It the problem of thin and welding, is easy to leak heat-exchanging component at runtime, adsorbent is caused to fail, even more so that adsorption tower is scrapped；
For the absorber of inner sleeve and inner sleeve endless tube flanged joint, it is not easy to examine when leaking at flange fastening difficulty and flange seal
Feel, maintenance difficult, and the design structure of inner sleeve endless tube is complicated, it is desirable that sufficiently large installation space is arranged at skirt lower part.
In conclusion for active carbon adsorber, it is comprehensive in terms of heat exchange efficiency and equipment safety stablize longtime running two
It closes and considers, design needs to be further improved and optimize.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of active carbon adsorber.The heat exchange sleeve of the absorber is arranged using parallel way, heat transfer efficiency
It is all made of bell and spigot frame connection between height, long straight inner casing tube and interior branch pipe and heat exchange inner sleeve, can not only reduce connection
Weld seam quantity, is effectively reduced the risk of heat source medium leakage, but also can effective heat-absorbing deformation, the heat for reducing each pipe answers
Power.
In one aspect of the invention, the invention proposes a kind of active carbon adsorbers, according to an embodiment of the invention, should
Absorber includes:
Absorber main body, the absorber main body have adsorbent entrance, gas access and gas vent, the absorber
The lower end of main body is lower head, and the outer wall of the absorber main body is equipped with heat transfer structure；
Spigot-and-socket sheath assembly, the spigot-and-socket sheath assembly include:
Supervisor, the supervisor include interior supervisor and outer supervisor, and the interior supervisor is that inner-outer sleeve tubular type is double with the outer supervisor
Layer structure, and be suitable for being responsible for by the inside/outside toward the spigot-and-socket sheath assembly delivery heat transfer medium, and pass through outside described/
Medium after heat exchange is discharged in interior supervisor；
Branch pipe, the branch pipe include interior branch pipe and outer branch pipe, and the interior branch pipe and the outer branch pipe are that inner-outer sleeve tubular type is double
Layer structure, the interior branch pipe and interior supervisor's vertical connection, the outer branch pipe and outer supervisor's vertical connection；
Long straight pipe, the long straight pipe include long straight inner casing tube and long straight pipe outer tube, the long straight pipe
Inner sleeve and the long straight pipe outer tube are inner-outer sleeve tubular type double-layer structure, the straight inner casing tube of length and the interior branch pipe
Using bell and spigot frame vertical connection, the long straight pipe both ends are equipped with the first pipe cap, the long straight pipe outer tube and described outer
Branch pipe vertical connection；
Heat exchange sleeve, the heat exchange sleeve include heat exchange inner sleeve and heat exchange outer tube, the heat exchange inner sleeve and described
Heat exchange outer tube is inner-outer sleeve tubular type double-layer structure, and the heat exchange inner sleeve and the straight inner casing tube of the length use bell and spigot frame
Vertical connection, one end of the heat exchange outer tube are equipped with the second pipe cap, and the other end of the heat exchanger tube outer tube and the length are flat
Straight tube outer tube vertical connection, the heat exchange sleeve pass axially through the lower head and are inserted into the absorber body interior；
Skirt, the skirt are connected with the absorber main body.
Active carbon adsorber according to an embodiment of the present invention, by using the supervisor of inner-outer sleeve tubular type double-layer structure, branch pipe,
Long straight pipe and heat exchange sleeve can significantly reduce the volume of heat exchange tube assemblies in absorber, save space, skirt is effectively reduced
Mounting height；Long straight inner casing tube is all made of bell and spigot frame with heat exchange inner sleeve and connect with interior branch pipe, long straight inner casing tube,
It is convenient for disassembly and assembly, and reduce the weld seam that heat exchange inner sleeve is connect with external pipe, compared with the flanged joint of heat exchange inner sleeve,
The leakage of heat exchange sleeve can be effectively reduced, meanwhile, this connection type can be absorbed interior branch pipe, long straight inner casing tube and
Exchange heat deformation caused by inner sleeve expanded by heating, stress caused by reducing due to structure limitation；Heat exchange sleeve passes axially through down
End socket is inserted into absorber body interior, and heat exchange sleeve is arranged in parallel, heat exchange efficiency with higher.As a result, using the application's
Active carbon adsorber with spigot-and-socket sheath assembly composition is compact-sized, easy for assemble or unload, with previous coil pipe or other shapes
Heat-exchanging component built in the active carbon adsorber of formula is compared, and can effectively reduce the risk of heat source medium leakage, while in heat transfer structure
Under the collective effect of heat exchange sleeve, the heat transfer heat exchange efficiency of absorber body interior can be effectively improved, is made in absorber main body
Adsorbent temperature be evenly distributed.
In addition, active carbon adsorber according to the above embodiment of the present invention can also have the following additional technical features:
In some embodiments of the invention, the outer branch pipe, the long straight pipe outer tube and institute are connected to by four-way
State heat exchange outer tube.It can be further reduced the weld seam of spigot-and-socket sheath assembly as a result, reduce the leakage wind of spigot-and-socket sheath assembly
Danger.
In some embodiments of the invention, the heat exchange outer tube and the long straight pipe housing are connected to by concentric reducer
Pipe.It can be further reduced the weld seam of spigot-and-socket sheath assembly as a result, reduce the disclosure risk of spigot-and-socket sheath assembly.
It in some embodiments of the invention, is that light pipe or outer wall are equipped with augmentation of heat transfer structure in the heat exchange inner sleeve
Pipe.Be conducive to improve the heat exchange efficiency of heat exchange sleeve as a result,.
It in some embodiments of the invention, is that light pipe or outer wall are equipped with augmentation of heat transfer structure in the heat exchange outer tube
Pipe.It can further improve the heat exchange efficiency of heat exchange sleeve as a result,.
In some embodiments of the invention, the upper a plurality of branch pipe of vertical connection of the supervisor.Be conducive to save as a result,
The volume of spigot-and-socket sheath assembly.
In some embodiments of the invention, include a plurality of long straight pipe, and every long straight pipe with every
The branch pipe vertical connection.The volume of spigot-and-socket sheath assembly can be further saved as a result,.
In some embodiments of the invention, a plurality of heat exchange sleeve of vertical connection in every long straight pipe.By
This, can further save the volume of spigot-and-socket sheath assembly.
In some embodiments of the invention, a plurality of heat exchange sleeve is in parallel.Spigot-and-socket set can be further saved as a result,
The volume of tube assembly.
In some embodiments of the invention, the spread pattern of the heat exchange sleeve being arranged in parallel be square, positive three
Angular or regular hexagon.Be conducive to improve the uniformity of adsorbent Temperature Distribution in absorber main body as a result,.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the main view of active carbon adsorber according to an embodiment of the invention；
Fig. 2 is the main view of the spigot-and-socket sheath assembly of active carbon adsorber according to an embodiment of the invention；
Fig. 3 is the top view of the spigot-and-socket sheath assembly of the active carbon adsorber of further embodiment according to the present invention；
Fig. 4 is bell and spigot frame schematic diagram according to an embodiment of the invention；
Fig. 5 is locally connected's structural schematic diagram of spigot-and-socket sheath assembly according to an embodiment of the invention；
The temperature profile (left side) and absorber body interior that Fig. 6 is the heat exchange sleeve of the embodiment of the present invention are apart from lower head
The adsorbent temperature distribution map (right side) of cross section at 1m；
Fig. 7 is the stress intensity figure (left side) and alternation at the heat exchange outer tube and lower head welded connecting of the embodiment of the present invention
Stress intensity figure (neutralizes right).
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In one aspect of the invention, the invention proposes a kind of active carbon adsorbers, according to an embodiment of the invention, ginseng
Fig. 1-5 is examined, which includes: absorber main body 100, spigot-and-socket sheath assembly 200 and skirt 300.
According to one embodiment of present invention, in absorber main body 100 there is adsorbent entrance, gas access and gas to go out
Mouthful, 100 lower end of absorber main body is lower head, and outer wall is equipped with heat transfer structure 11, and is suitable for being passed through suction by adsorbent entrance
Attached dose, polycrystalline silicon reduction exhaust is passed through by gas access, to realize the purifying and adsorbent of polycrystalline silicon reduction exhaust
Desorption and regenerative process.It should be noted that the heat transfer structure on absorber body outer wall is not particularly restricted, this field skill
Art personnel can select according to actual needs, such as can be the heat exchange structure of collet form, or spiral coil.
The heat transfer efficiency for helping speed up absorber body interior adsorbent as a result, improve polycrystalline silicon reduction exhaust purifying and
The desorption of adsorbent and regenerated efficiency.
Still another embodiment in accordance with the present invention, spigot-and-socket sheath assembly 200 includes: supervisor 210, branch pipe 220, length is straight
Pipe 230 and heat exchange sleeve 240, and be suitable for that the intracorporal adsorbent of absorber master is heated or cooled.
A specific embodiment according to the present invention, supervisor 210 include interior supervisor 211 and outer supervisor 212, interior supervisor 211
It is inner-outer sleeve tubular type double-layer structure with outer supervisor 212, and is suitable for being responsible for by inside/outside toward spigot-and-socket sheath assembly delivery heat transfer and be situated between
Matter, and pass through medium after outer/inner supervisor discharge heat exchange.Inventors have found that supervisor has by using inner-outer sleeve tubular type double-layer structure
Conducive to the occupied space of reduction spigot-and-socket sheath assembly, and then reduce the cost of the absorber.
Another specific embodiment according to the present invention, branch pipe 220 include interior branch pipe 221 and outer branch pipe 222, interior branch pipe
221 and outer branch pipe 222 are inner-outer sleeve tubular type double-layer structure, interior branch pipe 221 and 211 vertical connections of interior supervisor, outer branch pipe 222 with outside
212 vertical connections are responsible for, and are suitable for connection supervisor and long straight pipe.Inventors have found that branch pipe is double by using inner-outer sleeve tubular type
Layer structure, can further decrease the occupied space of spigot-and-socket sheath assembly, and then further decrease the cost of the absorber.According to
One embodiment of the present of invention is responsible for a plurality of branch pipe 220 of vertical connection on 210, and a plurality of branch pipe forms alternate path as a result, can
The occupied space of spigot-and-socket sheath assembly is further decreased, meanwhile, be conducive to the heat exchange efficiency for improving absorber.Specifically, more
Arms parallel with supervisor's vertical connection.
Another specific embodiment according to the present invention, long straight pipe 230 include that long straight inner casing tube 231 and length are straight
Pipe outer tube 232, long straight inner casing tube 231 and long straight pipe outer tube 232 are inner-outer sleeve tubular type double-layer structure, long straight pipe
Inner sleeve 231 and interior branch pipe 221 use bell and spigot frame vertical connection, and long 230 both ends of straight pipe are equipped with the first pipe cap 233, long flat
Straight tube outer tube 232 and outer 222 vertical connection of branch pipe, and it is suitable for connection branch pipe and heat exchange sleeve.Inventors have found that long straight pipe
By using inner-outer sleeve tubular type double-layer structure, the occupied space of spigot-and-socket sheath assembly can be further decreased, this is further decreased
The cost of absorber.Long straight pipe both ends are equipped with the first pipe cap, that is, grow the both ends of straight inner casing tube and long straight pipe outer tube
It is equipped with the first pipe cap.The middle part of long flat branch pipe is connected with branch pipe.The occupancy of spigot-and-socket sheath assembly can be further decreased as a result,
Space.Long straight inner casing tube and interior branch pipe use bell and spigot frame vertical connection, convenient for disassembly and assembly, and advantageously reduce spigot-and-socket
The leakage of spigot-and-socket sheath assembly can be effectively reduced compared with flanged joint in the weld seam of sheath assembly, meanwhile, this company
The mode of connecing can effectively absorb deformation caused by long straight inner casing tube and interior branch pipe expanded by heating, reduce since structure limits
Caused stress.A specific embodiment according to the present invention, include a plurality of long straight pipe 230, and every long straight pipe 230 with
Every 220 vertical connection of branch pipe.For example, every long straight pipe with and the branch pipe of its vertical connection where plane and supervisor and prop up
Plane where pipe is vertical.
Another specific embodiment according to the present invention, heat exchange sleeve 240 include heat exchange inner sleeve 241 and heat exchange outer tube
242, heat exchange inner sleeve 241 and heat exchange outer tube 242 are inner-outer sleeve tubular type double-layer structure, heat exchange inner sleeve 241 and long straight pipe
Inner sleeve 231 uses bell and spigot frame vertical connection, and one end of heat exchange outer tube 241 is equipped with the second pipe cap 243, heat exchanger tube outer tube
242 other end and long 232 vertical connection of straight pipe outer tube, heat exchange sleeve 240 pass axially through lower head insertion absorber
Inside main body 100, and it is suitable for the medium by flowing in heat exchange sleeve, realizes the heating or cold to adsorbent in absorber main body
But, to realize to the purifying of polycrystalline silicon reduction exhaust or the desorption of adsorbent and regeneration.Inventors have found that heat exchange sleeve
By using inner-outer sleeve tubular type double-layer structure, the occupied space of spigot-and-socket sheath assembly can be further decreased, and then reduces the suction
The cost of adnexa.Long straight inner casing tube and heat exchange inner sleeve use bell and spigot frame vertical connection, convenient for disassembly and assembly, and are conducive to
Compared with flanged joint the leakage of spigot-and-socket sheath assembly can be effectively reduced, together in the weld seam for reducing spigot-and-socket sheath assembly
When, this connection type can effectively absorb deformation caused by long straight inner casing tube and heat exchange inner sleeve expanded by heating, subtract
Stress caused by the small limitation due to structure.By the way that the second pipe cap is arranged in one end of heat exchange outer tube, be conducive to the inner sleeve that exchanges heat
Medium flow into heat exchange outer tube, or the medium in heat exchange outer tube flows into heat exchange inner sleeve.Simultaneously in heat transfer structure and heat exchange
Under the collective effect of casing, the heat transfer heat exchange efficiency of absorber body interior can be effectively improved, makes the intracorporal absorption of absorber master
Agent uniformity of temperature profile.It should be noted that the mode that welding can be used between heat exchange outer tube and lower head connects.
Another specific embodiment according to the present invention can be connected to outer branch pipe 222, long straight pipe housing by four-way 21
Pipe 232 and heat exchange outer tube 242.As a result, because of interior branch pipe and long straight inner casing tube, long straight inner casing tube and heat exchange inner sleeve
It is all made of bell and spigot frame vertical connection, and long straight pipe outer tube is connect with outer branch pipe, heat exchange outer tube using four-way, may make
Long straight pipe outer tube and outer branch pipe, heat exchange outer tube, in addition long straight inner casing tube and heat exchange inner sleeve, long straight pipe inner sleeve
Pipe is all made of bell and spigot frame with interior branch pipe and is connected to, so that long straight pipe and heat exchange sleeve are convenient for disassembly and assembly, it can be by every Heat exchange jacekt
Pipe is individually split out, and every root long straight pipe is individually split out, the single place when heat exchange sleeve or long straight pipe are revealed is conducive to
Reason, single replacement, the significant maintenance cost for saving active carbon adsorber.Meanwhile this structure can be further reduced spigot-and-socket set
The leakage of spigot-and-socket sheath assembly can be effectively reduced compared with flanged joint in the weld seam of tube assembly.
Another specific embodiment according to the present invention can be connected to heat exchange outer tube 242 by concentric reducer and length is straight
Pipe outer tube 232.As a result, because the straight inner casing tube of length and heat exchange inner sleeve use bell and spigot frame vertical connection, and long straight pipe
Outer tube is connect with heat exchange outer tube using concentric reducer, may make long straight pipe and heat exchange sleeve convenient for disassembly and assembly, and then further
The leakage of spigot-and-socket sheath assembly can be effectively reduced compared with flanged joint in the weld seam for reducing spigot-and-socket sheath assembly.
Another specific embodiment according to the present invention, heat exchange inner sleeve 241 and the outer tube 242 that exchanges heat can independently
The pipe of augmentation of heat transfer structure is equipped with for light pipe or outer wall, augmentation of heat transfer structure can be fin.Be conducive to improve Heat exchange jacekt as a result,
The heat transfer efficiency of pipe, and then improve the heat exchange efficiency of heat exchange sleeve and adsorbent.
Another specific embodiment according to the present invention, a plurality of heat exchange sleeve of vertical connection in every long straight pipe 230
240.The occupied space of spigot-and-socket sheath assembly can be further decreased as a result, and then reduces the cost of the absorber.
Another specific embodiment according to the present invention, a plurality of heat exchange sleeve 240 are in parallel.It can further decrease and hold as a result,
The occupied space of formula sheath assembly is inserted, and then reduces the cost of the absorber.Meanwhile being conducive to improve spigot-and-socket sheath assembly
Heat exchange efficiency.Specifically, the medium in spigot-and-socket sheath assembly can be responsible for the inside/outside for flowing to each parallel connection by inside/outside
Branch pipe, then the long straight pipe inside/outside casing of each parallel connection is flowed to from the inside/outside branch pipe of each parallel connection, it is then straight from the length of each parallel connection
Pipe inside/outside casing flows to the heat exchange inside/outside casing of each parallel connection, and then under the action of the second pipe cap, medium is changed from each in parallel
The outer/inner casing of long straight pipe of each parallel connection, then the outer/inner casing of long straight pipe from each parallel connection are flowed at the top of the outer/inner casing of heat
The outer/inner branch pipe for flowing to each parallel connection is finally pooled to outer/inner supervisor, then flows out spigot-and-socket heat exchanger tube from outer/inner supervisor, completes
Flowing of the medium in spigot-and-socket sheath assembly.It should be noted that medium both can be flowed into first from interior supervisor, from outer supervisor
It flows out, can also be flowed into from outer supervisor, then flowed out from interior supervisor.Meanwhile medium is either thermal medium, is adsorbent
Heat is provided, cold medium is also possible to, is cooled down for adsorbent.In this regard, those skilled in the art can carry out according to actual needs
Selection.
The spread pattern of another specific embodiment according to the present invention, the heat exchange sleeve 240 being arranged in parallel can be positive
Rectangular, equilateral triangle or regular hexagon arrangement.Inventors have found that passing through the heat exchange sleeve that will be arranged in parallel with square, positive three
The arrangement of angular or regular hexagon is conducive to the temperature distribution evenness for improving adsorbent in absorber main body, and then improves polycrystalline
The purifying efficiency of Si reduction tail gas and the desorption and regeneration efficiency of adsorbent.
According to still another embodiment of the invention, skirt 300 is connected with absorber main body 100.
Active carbon adsorber according to an embodiment of the present invention, by using the supervisor of inner-outer sleeve tubular type double-layer structure, branch pipe,
Long straight pipe and heat exchange sleeve can significantly reduce the volume of heat exchange tube assemblies in absorber, save space, skirt is effectively reduced
Mounting height；Long straight inner casing tube is all made of bell and spigot frame with heat exchange inner sleeve and connect with interior branch pipe, long straight inner casing tube,
It is convenient for disassembly and assembly, and reduce the weld seam that heat exchange inner sleeve is connect with external pipe, compared with the flanged joint of heat exchange inner sleeve,
The leakage of heat exchange sleeve can be effectively reduced, meanwhile, this connection type can effectively absorb interior branch pipe, in long straight pipe
Deformation caused by casing and heat exchange inner sleeve expanded by heating, stress caused by reducing due to structure limitation；Heat exchange sleeve is along axial
It is inserted into absorber body interior across lower head, heat exchange sleeve is arranged in parallel, heat exchange efficiency with higher.As a result, using this
Application with spigot-and-socket sheath assembly composition active carbon adsorber it is compact-sized, easy for assemble or unload, with previous coil pipe or
Heat-exchanging component built in the active carbon adsorber of other forms is compared, and can effectively reduce the risk of heat source medium leakage, while being passed
Under the collective effect of heat structure and heat exchange sleeve, the heat transfer heat exchange efficiency of absorber body interior can be effectively improved, absorber is made
Main intracorporal adsorbent temperature is evenly distributed.
Below with reference to specific embodiment, present invention is described, it should be noted that these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment
One active carbon adsorber, including absorber main body 100, spigot-and-socket sheath assembly 200 and skirt 300.
Wherein, absorber main body 100 has adsorbent entrance, gas access and gas vent, and lower end is lower head, interior
Diameter is 3m, and outer wall is equipped with spiral coil heat transfer structure, and is suitable for being passed through adsorbent by adsorbent entrance, logical by gas access
Enter polycrystalline silicon reduction exhaust, to realize the purifying of polycrystalline silicon reduction exhaust and the desorption and regenerative process of adsorbent.
Spigot-and-socket sheath assembly 200 includes: supervisor 210, branch pipe 220, long straight pipe 230 and heat exchange sleeve 240, and is suitable for
The intracorporal adsorbent of absorber master is heated or cooled.Supervisor 210 includes interior supervisor 211 and outer supervisor 212, interior supervisor
211 are responsible for 212 with outer as inner-outer sleeve tubular type double-layer structure, and are suitable for being responsible for by inside/outside toward the conveying of spigot-and-socket sheath assembly and change
Thermal medium, and pass through medium after outer/inner supervisor discharge heat exchange.11 branch pipes 220 of vertical connection on supervisor 210, every branch pipe 220
Including interior branch pipe 221 and outer branch pipe 222, interior branch pipe 221 is inner-outer sleeve tubular type double-layer structure with outer branch pipe 222, interior branch pipe 221 with
211 vertical connections of interior supervisor, outer branch pipe 222 and 212 vertical connections of outer supervisor, and it is suitable for connection supervisor and long straight pipe.Every
230 vertical connection of branch pipe 220 and one long straight pipe, long straight pipe 230 include outside long straight inner casing tube 231 and long straight pipe
Casing 232, long straight inner casing tube 231 and long straight pipe outer tube 232 are inner-outer sleeve tubular type double-layer structure, long straight pipe inner sleeve
Pipe 231 and interior branch pipe 221 use bell and spigot frame vertical connection, and long 230 both ends of straight pipe are equipped with the first pipe cap 233, long straight pipe
Outer tube 232 and outer 222 vertical connection of branch pipe, and it is suitable for connection branch pipe and heat exchange sleeve.Every long straight pipe 230 is changed with a plurality of
Thermal sleeve 240 is connected to, and is provided with 93 heat exchange sleeves altogether, and the heat exchange sleeve is arranged with square mode, every heat exchange sleeve
240 include heat exchange inner sleeve 241 and heat exchange outer tube 242, and heat exchange inner sleeve 241 and heat exchange outer tube 242 are inner-outer sleeve tubular type
Double-layer structure, heat exchange inner sleeve 241 and long straight inner casing tube 231 use bell and spigot frame vertical connection, heat exchange outer tube 241
One end is equipped with the second pipe cap 243, the other end of heat exchanger tube outer tube 242 and long 232 vertical connection of straight pipe outer tube, Heat exchange jacekt
Pipe 240 passes axially through inside lower head insertion absorber main body 100, and exchanges heat between outer tube and lower head using welding
Mode is attached, and the length of insertion absorber body interior is about 11.97m, heat exchange inner sleeve 241 and heat exchange outer tube 242
Outer wall be provided with fin, and be suitable for the medium by flowing in heat exchange sleeve, realize to adsorbent in absorber main body
It is heated or cooled, to realize to the purifying of polycrystalline silicon reduction exhaust or the desorption of adsorbent and regeneration.Wherein, outer branch pipe
222, long straight pipe outer tube 232 is connected to heat exchange outer tube 242 by four-way 21.
Skirt 300 is connected with absorber main body 100, specifically, can be connected with lower head.
Heat exchange sleeve and adsorbent in absorber main body when being flowed in spigot-and-socket sheath assembly to medium under above structure
Temperature field carry out unstable state analogue simulation, as a result as shown in Figure 6.As seen from the figure, heat exchange sleeve and adsorbent under this structure
Between heat transfer efficiency with higher, and in absorber main body adsorbent temperature distribution uniform.
The welded connecting of heat exchanging outer tube and lower head carries out stress analysis, as a result as shown in Figure 7.Wherein, left figure is
The stress intensity of heat exchange outer tube and lower head weld under worst operating condition neutralizes right it is shown that pressure and temperature changes when changing
Hot jacket pipe and the maximum alternating stress amplitude angle value of lower head weld.As seen from the figure, which can guarantee activated carbon adsorption
The reliable and stable longtime running of device.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of active carbon adsorber characterized by comprising
Absorber main body, the absorber main body have adsorbent entrance, gas access and gas vent, the absorber main body
Lower end be lower head, the outer wall of the absorber main body is equipped with heat transfer structure；
Spigot-and-socket sheath assembly, the spigot-and-socket sheath assembly include:
Supervisor, the supervisor include interior supervisor and outer supervisor, and the interior supervisor is inner-outer sleeve tubular type bilayer knot with the outer supervisor
Structure, and be suitable for being responsible for by the inside/outside toward the spigot-and-socket sheath assembly delivery heat transfer medium, and pass through the outer/inner master
Medium after pipe discharge heat exchange；
Branch pipe, the branch pipe include interior branch pipe and outer branch pipe, and the interior branch pipe and the outer branch pipe are inner-outer sleeve tubular type bilayer knot
Structure, the interior branch pipe and interior supervisor's vertical connection, the outer branch pipe and outer supervisor's vertical connection；
Long straight pipe, the long straight pipe include long straight inner casing tube and long straight pipe outer tube, the long straight pipe inner sleeve
Pipe is inner-outer sleeve tubular type double-layer structure with the long straight pipe outer tube, and the straight inner casing tube of length and the interior branch pipe use
Bell and spigot frame vertical connection, the long straight pipe both ends are equipped with the first pipe cap, the long straight pipe outer tube and the outer branch pipe
Vertical connection；
Heat exchange sleeve, the heat exchange sleeve include heat exchange inner sleeve and exchange heat outer tube, the heat exchange inner sleeve and the heat exchange
Outer tube is inner-outer sleeve tubular type double-layer structure, and the heat exchange inner sleeve is vertical using bell and spigot frame with the straight inner casing tube of the length
One end of connection, the heat exchange outer tube is equipped with the second pipe cap, the other end of the heat exchanger tube outer tube and the long straight pipe
Outer tube vertical connection, the heat exchange sleeve pass axially through the lower head and are inserted into the absorber body interior；
Skirt, the skirt are connected with the absorber main body.
2. active carbon adsorber according to claim 1, which is characterized in that be connected to the outer branch pipe, described by four-way
Long straight pipe outer tube and the heat exchange outer tube.
3. active carbon adsorber according to claim 1, which is characterized in that be connected to the heat exchange outer tube by concentric reducer
With the long straight pipe outer tube.
4. active carbon adsorber according to claim 1, which is characterized in that the heat exchange inner sleeve be light pipe or outer wall
Pipe equipped with augmentation of heat transfer structure.
5. active carbon adsorber according to claim 1, which is characterized in that the heat exchange outer tube be light pipe or outer wall
Pipe equipped with augmentation of heat transfer structure.
6. active carbon adsorber according to claim 1, which is characterized in that the upper a plurality of branch of vertical connection of the supervisor
Pipe.
7. active carbon adsorber according to claim 6, which is characterized in that it include a plurality of long straight pipe, and every
The long straight pipe and every branch pipe vertical connection.
8. active carbon adsorber according to claim 7, which is characterized in that vertical connection is more in every long straight pipe
Heat exchange sleeve described in item.
9. active carbon adsorber according to claim 8, which is characterized in that a plurality of heat exchange sleeve is in parallel.
10. active carbon adsorber according to claim 9, which is characterized in that the row of the heat exchange sleeve being arranged in parallel
Column form is square, equilateral triangle or regular hexagon.
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| CN115318057A (en) * | 2022-08-11 | 2022-11-11 | 中国恩菲工程技术有限公司 | Adsorption device |
| CN115400544A (en) * | 2022-11-02 | 2022-11-29 | 北京中科富海低温科技有限公司 | Gas adsorption device and purification equipment |
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| CN109289438B (en) | 2024-04-02 |
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