CN205700479U - Steam ascending manner radial flow reactors - Google Patents
Steam ascending manner radial flow reactors Download PDFInfo
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- CN205700479U CN205700479U CN201620556733.8U CN201620556733U CN205700479U CN 205700479 U CN205700479 U CN 205700479U CN 201620556733 U CN201620556733 U CN 201620556733U CN 205700479 U CN205700479 U CN 205700479U
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- 230000001174 ascending effect Effects 0.000 title claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 138
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000003054 catalyst Substances 0.000 claims abstract description 42
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 238000009413 insulation Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 230000002779 inactivation Effects 0.000 abstract description 7
- 239000006227 byproduct Substances 0.000 abstract description 6
- 206010020843 Hyperthermia Diseases 0.000 abstract description 5
- 230000036031 hyperthermia Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
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- 239000007789 gas Substances 0.000 description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000004044 response Effects 0.000 description 6
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- 230000008901 benefit Effects 0.000 description 3
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- 238000006555 catalytic reaction Methods 0.000 description 3
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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Abstract
This utility model provides a kind of steam ascending manner radial flow reactors, relate to petrochemical industry and Coal Chemical Industry reactor field, this steam ascending manner radial flow reactors, including reactor shell, heat-exchanging tube bundle, beds, shunt cylinder, conflux cylinder, collecting pipe, reacting material inlet and moisture outlet, reacting material outlet, cooling water inlet, catalyst discharge port and adiabatic reaction section, shunt cylinder, the cylinder that confluxes is the most sheathed with collecting pipe and connects, beds be arranged at shunt cylinder and conflux between cylinder gap in, heat-exchanging tube bundle passes beds, the bottom of collecting pipe connects with reacting material outlet, adiabatic reaction section connects with reacting material inlet, it is provided with catalyst in adiabatic reaction section.This utility model realizes reacting gas radial through beds, and circulation area is big, and pressure drop is low, and uniformity of temperature profile, it is to avoid localized hyperthermia, effectively reduces catalyst carbon deposit or inactivation risk, and byproduct steam, good in economic efficiency.
Description
Technical field
This utility model relates to petrochemical industry and Coal Chemical Industry reactor field, in particular to a kind of steam ascending manner
Radial flow reactors.
Background technology
In recent years, methanol-fueled CLC, carbon monodixe conversion, preparing methane by synthetic gas, ammonia synthesis, methanol-to-olefins, methanol system
The field such as aromatic hydrocarbons, preparing gasoline by methanol is the most noticeable, and wherein the research of catalytic bed reactor is always this field with improving
Focus.For the strong exothermal reaction of fixed bed, course of reaction is effectively removed waste heat, maintain reaction temperature stable, keep away
Exempt from catalyst carbon deposit or inactivation, it is ensured that selectivity and the yield of reaction are most important.
According to reaction mass flow direction in the reactor, fixed bed catalytic reactor can be divided into again axial flow reactor
With Radial Flow reactor.Owing to current chemical plant installations scale gradually expands, traditional axially flowing fixed bed reactors due to
Diameter is affected by traffic condition so that it is the space of volume increase is restricted；Additionally, its heat transfer effect also can have much room for improvement.And footpath
To flow reactor then owing to loaded catalyst is big, flow process is short, pressure drop is little and becomes reversible exothermic reaction industrial large-sizedization and sets
Standby preferred reactor type.But for methanol synthesis reactor, shift-converter etc., conventional adiabatic reactor radial reactor depends on
So there is thermal discharge big, the temperature of reactor is high, wayward, the problem that catalyst overtemperature is short with the cycle of use, adds life
Produce cost.
Utility model content
The purpose of this utility model is to provide a kind of steam ascending manner radial flow reactors, and it can make reacting gas radially
By beds, circulation area is big, and pressure drop is low, and uniformity of temperature profile, it is to avoid localized hyperthermia, effectively reduces catalyst and amasss
Charcoal or inactivation risk, simultaneously byproduct steam, good in economic efficiency.
Embodiment of the present utility model is achieved in that
A kind of steam ascending manner radial flow reactors, including reactor shell, heat-exchanging tube bundle, beds, shunt cylinder,
Conflux cylinder and collecting pipe, and the top of reactor shell is provided with reacting material inlet and moisture outlet, and the bottom of reactor shell sets
Being equipped with reacting material outlet, cooling water inlet and catalyst discharge port, moisture outlet connects with the top of heat-exchanging tube bundle, cools down water
Entrance connects with the bottom of heat-exchanging tube bundle；Shunt cylinder is set in the outside of the cylinder that confluxes, the inner chamber of the cylinder that confluxes and the inner chamber of shunt cylinder
Connection, the jacket casing that confluxes is located at the outside of collecting pipe, the inner space of the inner chamber of collecting pipe and the cylinder that confluxes, and the inner chamber of shunt cylinder is with anti-
Answer the inner space of device housing, beds be arranged at shunt cylinder and conflux between cylinder gap in, heat-exchanging tube bundle is through urging
Agent bed, the bottom of collecting pipe connects with reacting material outlet, and steam ascending manner radial flow reactors also includes adiabatic reaction
Section, adiabatic reaction section connects with reacting material inlet, is provided with catalyst in adiabatic reaction section.
Further, in preferred embodiment of the present utility model, above-mentioned heat-exchanging tube bundle is located on the outside of the cylinder that confluxes, absolutely
Thermal response section includes internal layer adiabatic reaction section and secondary insulation conversion zone, the beds shape between heat-exchanging tube bundle and shunt cylinder
Secondary insulation conversion zone, heat-exchanging tube bundle and the beds confluxed between cylinder is become to form internal layer adiabatic reaction section.
Further, in preferred embodiment of the present utility model, the radial thickness of above-mentioned secondary insulation conversion zone is for dividing
Flow cartridge to the cylinder that confluxes radial distance 5%～40%；The radial thickness of internal layer adiabatic reaction section is that shunt cylinder is to the cylinder that confluxes
The 2%～35% of radial distance.
Further, in preferred embodiment of the present utility model, above-mentioned adiabatic reaction section is arranged in reactor enclosure body,
Adiabatic reaction section is positioned at the lower section of reacting material inlet, and is positioned at the top of shunt cylinder.
Further, in preferred embodiment of the present utility model, above-mentioned steam ascending manner radial flow reactors also includes
Adiabatic reactor, it is external that adiabatic reactor is positioned at reactor enclosure, and adiabatic reaction section is arranged in adiabatic reactor, adiabatic reactor
Being provided with pre-reaction import and pre-reaction outlet, pre-reaction outlet connects with reacting material inlet.
Further, in preferred embodiment of the present utility model, the top of above-mentioned collecting pipe seals, and collecting pipe is provided with
The inner chamber of multiple first through holes, the inner chamber of collecting pipe and the cylinder that confluxes is connected by the first through hole；It is provided with on the barrel of shunt cylinder
Multiple third through-holes, the inner chamber of shunt cylinder is connected by third through-hole with the inner chamber of reactor shell, shunt cylinder and reactor enclosure
There is gap between body, form split channel.
Further, in preferred embodiment of the present utility model, the barrel of the above-mentioned cylinder that confluxes is provided with multiple second and leads to
Hole, the inner chamber of the cylinder that confluxes is connected by the second through hole with the inner chamber of shunt cylinder.
Further, in preferred embodiment of the present utility model, the above-mentioned cylinder that confluxes is made up of silk screen.
Further, in preferred embodiment of the present utility model, above-mentioned heat-exchanging tube bundle includes many heat exchanger tubes, Vapor Sinks
House steward, cooling supply mains, upper perforated plate and lower perforated plate, the top of Vapor Sink house steward connects with moisture outlet, the end of Vapor Sink house steward
End is connected with upper perforated plate, and the top of cooling supply mains is connected with lower perforated plate, and the bottom of cooling supply mains connects with cooling water inlet,
Heat exchanger tube is fixed in reactor enclosure body by upper perforated plate and lower perforated plate.
Further, in preferred embodiment of the present utility model, above-mentioned Vapor Sink house steward, cooling supply mains, steam go out
The quantity of mouth, cooling water inlet, upper perforated plate and lower perforated plate is 1～6.
This utility model embodiment provides the benefit that: by arranging shunt cylinder, conflux cylinder and remittance in reactor enclosure body
Flow tube, shunt cylinder, confluxes cylinder and collecting pipe is sequentially communicated, and beds is arranged at shunt cylinder and confluxes between cylinder, real
Existing reacting gas is radial through beds, and circulation area is big, and system pressure drop is low, the steam ascending manner that this utility model provides
The pressure drop of radial flow reactors is only the 10%～50% of axial flow reactor pressure drop.Cooling water flows in tube side, passes through vapour
Change and remove the heat that reaction produces, whole heat-exchanging tube bundle uniformity of temperature profile, it is to avoid localized hyperthermia, effectively reduce catalyst carbon deposit
Or inactivation risk, greatly reduce the heat-exchanging tube bundle requirement to material high temperature heat-resistant, effectively reduce equipment investment.By-product simultaneously
High pressure or middle pressure steam, good in economic efficiency.By controlling steam outlet pressure, the reaction temperature of isothermal section can be controlled, whole
Response system temperature flexible adjustment, effectively.The most in the present embodiment, by arranging adiabatic reaction section, reacting gas is made to carry out
Pre-reaction, reacting gas first carries out pre-reaction with the catalyst in adiabatic reaction section, and adiabatic reaction section can eliminate reaction mass
Middle part harmful constituent, and preheat reacting gas, makes reacting gas reach ideal feed state.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other relevant accompanying drawings according to these accompanying drawings.
The structural representation of the steam ascending manner radial flow reactors that Fig. 1 provides for this utility model first embodiment；
The structural representation of the steam ascending manner radial flow reactors that Fig. 2 provides for this utility model the second embodiment；
The structural representation of the steam ascending manner radial flow reactors that Fig. 3 provides for this utility model the 3rd embodiment.
In figure:
Steam ascending manner radial flow reactors 100,200,300；
Reactor shell 110,210；Top end socket 111；Middle cylinder 112；Bottom head 113；Reacting material inlet
114；Reacting material outlet 115；Cooling water inlet 116；Moisture outlet 117；Catalyst discharge port 118；
Heat-exchanging tube bundle 120；Heat exchanger tube 121；Vapor Sink house steward 122；Cooling supply mains 123；Upper perforated plate 124；Lower perforated plate
125；
Beds 130；
Shunt cylinder 141；Conflux cylinder 142,242；Collecting pipe 143；First through hole 144；Second through hole 145；Third through-hole
146；
Air distributor 150；
Inert ceramic balls layer 160；
Shunt cylinder cover plate 170；
Heat-exchanging tube bundle support member 180；
Adiabatic reactor 290；Adiabatic reaction section 191,291,391；Secondary insulation conversion zone 191a；Internal layer adiabatic reaction section
191b；Pre-reaction import 292；Pre-reaction outlet 293.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and
The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.
Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in this utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In description of the present utility model, it should be noted that term " " center ", " on ", D score, " level ", " interior ",
Orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this utility model product
The orientation usually put during use or position relationship, or the orientation that usually understands of those skilled in the art or position relationship,
It is for only for ease of description this utility model and simplifies description rather than instruction or imply that the device of indication or element must have
Specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term
" first ", " second ", " the 3rd " etc. are only used for distinguishing and describe, and it is not intended that indicate or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly " installation ", " connection ", connect for example, it may be fixing, it is also possible to be to removably connect, or integratedly
Connect；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, it is also possible to be the connection of two element internals.Right
For those of ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
First embodiment
Refer to Fig. 1, the present embodiment provides a kind of steam ascending manner radial flow reactors 100, and it includes reactor shell
110, heat-exchanging tube bundle 120, beds 130, shunt cylinder 141, conflux cylinder 142 and collecting pipe 143, heat-exchanging tube bundle 120, catalysis
Agent bed 130, shunt cylinder 141, conflux cylinder 142 and collecting pipe 143 is separately positioned on the inside of reactor shell 110.
In the present embodiment, reactor shell 110 includes top end socket 111, middle cylinder 112 and bottom head 113.Top
End socket 111 is provided with reacting material inlet 114 and moisture outlet 117, and bottom head 113 is provided with reacting material outlet 115, cold
But water inlet 116 and catalyst discharge port 118.Wherein, moisture outlet 117 connects with the top of hot heat-exchanging tube bundle 120, cools down water
Import 116 connects with the bottom of heat-exchanging tube bundle 120.
Reaction mass enters from reacting material inlet 114 after reacting in reactor shell 110, from reacting material outlet
115 discharge；Cooling water enters from cooling water inlet 116, and through heat-exchanging tube bundle 120, cooling water is by vaporization absorption reactor enclosure
After the heat that in body 110, reaction mass reaction is discharged, discharge from moisture outlet 117.In the present embodiment, reacting material inlet
114 can be used as catalyst filling mouth, for loading catalyst in reactor shell 110, form beds 130, it is not necessary to
Separately set catalyst filling mouth, save equipment cost.When loading catalyst, catalyst is put into instead from reacting material inlet 114
In answering device housing 110, after reaction a period of time, then catalyst is drawn off from the catalyst discharge port 118 of reactor shell 110,
The handling of catalyst are very convenient, quick.Meanwhile, reacting material inlet 114 also acts as manhole and uses, convenient to reaction
Overhaul inside device and clear up.In this utility model embodiment, Catalyst packing in tube bank outside, cooling water at tube side flow,
Removing the heat that reaction produces, whole heat-exchanging tube bundle 120 uniformity of temperature profile by vaporization, it is to avoid localized hyperthermia, reduction is urged
Agent carbon deposit or inactivation risk, by-product high pressure or middle pressure steam, good in economic efficiency simultaneously.
The cooling medium that cooling water inlet 116 is passed through is the aqueous water of saturation.Owing to the water of saturation is in vaporization
During temperature-resistant, temperature in whole heat-exchanging tube bundle 120 keeps constant, and heat-exchanging tube bundle 120 is inhaled in reactor shell 110
The heat released when receiving material reaction so that internal aqueous water is constantly evaporated to steam, forms gas-vapor mix, constantly from top
The moisture outlet 117 of end socket 111 is discharged, and by controlling the outlet pressure of moisture outlet 117, can control reactor shell 110
Interior reaction temperature so that the temperature of whole response system can be adjusted the most effectively.
Specifically, seeing Fig. 1, heat-exchanging tube bundle 120 includes many heat exchanger tubes 121, Vapor Sink house steward 122 and cooling supply mains
123, wherein, the two ends of Vapor Sink house steward 122 connect with top and the moisture outlet 117 of heat exchanger tube 121 respectively, cool down supply mains
The two ends of 123 connect with bottom and the cooling water inlet 116 of heat exchanger tube 121 respectively, and cooling water enters cold from cooling water inlet 116
But in supply mains 123, it is then tapped off in many heat exchanger tubes 121, increases heat exchange area, fully in reactor shell 110
Reaction liberated heat absorbs, and is aggregated in Vapor Sink house steward 122 discharge the most again.Meanwhile, in the present embodiment, also dividing
Flow cartridge 141 and conflux and be provided with heat-exchanging tube bundle support member 180 between cylinder 142, heat-exchanging tube bundle support member 180 and heat-exchanging tube bundle 120
Connect, and can heat exchanging tube bank 120 play a supporting role, it is to avoid because heat-exchanging tube bundle 120 shakes, beds 130 is caused
Destroy.
The upper perforated plate 124 for fixing heat exchanger tube 121 top it is provided with, in cooling supply mains 123 in Vapor Sink house steward 122
It is provided with the lower perforated plate 125 for fixing heat exchanger tube 121 bottom, by upper perforated plate 124 and the setting of lower perforated plate 125 so that
Heat exchanger tube 121 can be fixed in reactor shell 110, simultaneously by the tube side steam in reactor shell 110 and the outer reactant of pipe
Material is effectively isolated.
The cooling water inlet 116 that is sequentially communicated, cooling supply mains 123, lower perforated plate 125, many heat exchanger tubes 121, upper perforated plates
124, Vapor Sink house steward 122 and moisture outlet 117 form one group of heat-exchanging tube bundle 120, and quantity is 1～6 group.In the present embodiment, excellent
Selecting heat-exchanging tube bundle 120 is four groups, and is symmetrical arranged.Specifically, in the present embodiment, moisture outlet 117 is four, and four steam
Outlet 117 is symmetrical arranged, and in like manner, cooling water inlet 116 is also four, and corresponding with the position of four moisture outlet 117 respectively.
Correspondingly, in the present embodiment, Vapor Sink house steward 122, cooling supply mains 123, upper perforated plate 124 and lower perforated plate 125 also correspond to four
Individual.In the present embodiment, heat exchanger tube 121 is disposed through shunt cylinder 141 and the beds 130 confluxed between cylinder 142, and right
Claim distribution so that in whole reactor, heat exchange is uniform, and reaction mass flow through the resistance drop of beds 130 and is evenly distributed,
Be conducive to the heat and mass transfer in reactor.Certainly, in other embodiments, according to the size of reactor shell 110, or can change
The demand that hot side is long-pending, the group number of heat exchanging tube bank 120 is adjusted correspondingly.
See Fig. 1, in this utility model embodiment, shunt cylinder 141, conflux cylinder 142 and collecting pipe 143 is cylinder knot
Structure, is arranged in reactor shell 110.Wherein, shunt cylinder 141 is set in the outside of the cylinder 142 that confluxes, and the cylinder 142 that confluxes is set in
The outside of collecting pipe 143, the inner space of the inner chamber of shunt cylinder 141 and reactor shell 110, the inner chamber of the cylinder 142 that confluxes with point
The inner space of flow cartridge 141, the inner space of the inner chamber of collecting pipe 143 and the cylinder 142 that confluxes, beds 130 is arranged at point
In flow cartridge 141 and the gap confluxed between cylinder 142, heat-exchanging tube bundle 120 through beds 130, the bottom of collecting pipe 143 with
Reacting material outlet 115 connects.
Specifically, the top of collecting pipe 143 seals, and is provided with multiple first through hole 144 on the tube wall of collecting pipe 143,
The inner chamber of collecting pipe 143 is connected by the first through hole 144 with the inner chamber of the cylinder 142 that confluxes, same, at the barrel of cylinder 142 that confluxes
On be provided with multiple second through hole 145, the barrel of shunt cylinder 141 is provided with multiple third through-hole 146, conflux cylinder 142
Inner chamber is connected by the second through hole 145 with the inner chamber of shunt cylinder 141, the inner chamber of shunt cylinder 141 and the inner chamber of reactor shell 110
Connected by third through-hole 146.There is gap between shunt cylinder 141 and reactor shell 110, this gap forms reaction mass and divides
Circulation road.Reacting gas enters reactor shell 110 from reacting material inlet 114, shunts through split channel, after shunting
Reacting gas enter in shunt cylinder 141 from the third through-hole 146 of shunt cylinder 141, with the beds in shunt cylinder 141
130 contact and react, after reaction, by the second through hole 145 on cylinder 142 and the first through hole on collecting pipe 143 of confluxing
144 enter collecting pipe 143, finally discharge from reacting material outlet 115.
In the present embodiment, by shunt cylinder 141, conflux cylinder 142 and the ingehious design of collecting pipe 143, it is achieved reacting gas
Radial through beds 130, circulation area is big, and system pressure drop is low, the steam ascending manner radial flow that this utility model provides
The pressure drop of reactor 100 is only the 10%～50% of axial flow reactor pressure drop.Meanwhile, conflux cylinder 142 and collecting pipe 143 overlaps
If the system jams caused can be prevented effectively from being brought into collecting pipe 143 because of the catalyst in beds 130 by air-flow and urges
Agent runs off.Additionally, conflux cylinder 142 by setting and collecting pipe 143 can suitably increase fluid and flow through the resistance drop of the facility that confluxes
Ratio in system drag overall is dropped so that air-flow is more evenly distributed when Radial Flow.
Specifically, in the present embodiment, first through hole the 144, second through hole 145 and third through-hole 146 are evenly distributed respectively
In collecting pipe 143, conflux on cylinder 142 and shunt cylinder 141.First through hole the 144, second through hole 145 and the diameter of third through-hole 146
Being 1～8mm, this aperture can make the circulation of reacting gas smooth and easy, can be effectively prevented again catalyst and be brought into reactant by air-flow
Material outlet 115.In the present embodiment, collecting pipe 143, the top of the cylinder 142 that confluxes all seal setting, additionally, set at shunt cylinder top
It is equipped with shunt cylinder cover plate 170, it is to avoid reacting gas enters from the top of shunt cylinder 141, causes the short circuit of reaction mass runner.Pass through
The sealing at top is arranged, and defines that reacting gas can only radially flow, and makes contacting more of reacting gas and beds 130
Fully, reaction is more complete.And in this utility model embodiment, shunt cylinder cover plate 170 is spliced by multiple dismountable plates,
Conveniently when Catalyst packing, shunt cylinder cover plate 170 is dismantled.
Further, in the present embodiment, steam ascending manner radial flow reactors 100 also includes adiabatic reaction section 191, adiabatic
Conversion zone 191 connects with reacting material inlet 114, is provided with catalyst in adiabatic reaction section 191.Reaction mass is first in thermal insulation
Carrying out pre-reaction under the catalytic action of the catalyst in conversion zone 191, adiabatic reaction section 191 can eliminate part in reaction mass
Harmful constituent, and utilize pre-reaction heat that reacting gas is preheated, make reacting gas reach ideal feed state.
Adiabatic reaction section 191 can be arranged on the inside of reactor shell 110, it is also possible to is arranged at reactor shell 110
Outside.
Adiabatic reaction section 191 is preferably arranged on the inside of reactor shell 110, specifically, adiabatic reaction by the present embodiment
Section 191 includes secondary insulation conversion zone 191a and internal layer adiabatic reaction section 191b, the heat-exchanging tube bundle 121 in the present embodiment, uniformly
The outside being distributed in the cylinder 142 that confluxes, and arrange ringwise, be filled with in the gap between heat-exchanging tube bundle 120 and shunt cylinder 141
Beds 130, this partial catalyst bed 130 is not owing to setting heat exchanger tube 121, and is positioned at heat-exchanging tube bundle 120 near shunting
The side of cylinder 141, therefore the beds of this part is considered secondary insulation conversion zone 191a, and heat-exchanging tube bundle 120 with converge
Being also filled with beds 130 in gap between flow cartridge 142, this partial catalyst bed 130 is not owing to setting heat exchanger tube
121, and it is positioned at the heat-exchanging tube bundle 120 side near the cylinder 142 that confluxes, therefore the beds of this part is considered internal layer thermal insulation
Conversion zone 191b, and owing to being provided with heat-exchanging tube bundle 120 between internal layer adiabatic reaction section 191b and secondary insulation conversion zone 191a,
Heat of reaction is absorbed fully, so that this part bed can keep the steady of reaction temperature by the cooling water in heat-exchanging tube bundle
Fixed, therefore, this part bed is considered isothermal reaction section.
In the present embodiment, the radial thickness of secondary insulation conversion zone 191a be shunt cylinder 141 to the cylinder 142 that confluxes radial direction away from
From 5%～40%, the radial thickness of internal layer adiabatic reaction section 191b is the shunt cylinder 141 radial distance to the cylinder 142 that confluxes
2%～35%.
Reaction mass is after the reacting material inlet 114 of reactor shell 110 enters, first in outer layer adiabatic reaction section
Carrying out pre-reaction under the catalyst action of 191a, material is carried out pre-by the heat utilizing secondary insulation conversion zone 191a pre-reaction to release
Heat so that it is temperature reaches optimal reaction temperature, effectively eliminates the harmful substance in raw material by pre-reaction simultaneously.After pre-reaction
Material enters isothermal reaction section, and isothermal reaction section utilizes the water vapor in heat-exchanging tube bundle 120, removes reaction liberated heat, and
Byproduct steam, makes reaction condition close to isothermal operation, effectively prevent the problems such as catalyst carbon deposit or inactivation that high temperature causes.
After isothermal reaction section is reacted, most of reactive material has participated in reaction, at the response magnitude of internal layer adiabatic reaction section 191b
Less, temperature rise is relatively low, therefore can be without heat exchange.The setting of internal layer adiabatic reaction section 191b, adds the total conversion of reaction, with
Time owing to being not provided with heat-exchanging tube bundle 120 in internal layer adiabatic reaction section 191b, unit volume inner catalyst loadings is big, can effectively contract
The volume of little reactor.
See Fig. 1, in the present embodiment, in the bottom head 113 of reactor shell 110, be additionally provided with inert ceramic balls layer 160.
This inert ceramic balls layer 160 is positioned at the lower section of beds 130, when carrying out catalyst filling, is first loaded by inert ceramic balls into anti-
In answering the bottom head 113 of device housing 110, form inert ceramic balls layer 160, then catalyst is deposited in inert ceramic balls layer 160
Above.Well beds 130 can be played a supporting role by arranging inert ceramic balls layer 160.
Seeing Fig. 1, further, the lower section of reacting material inlet 114 is provided with air distributor 150, the gas of reaction
Material can shunt, more fully with catalysis after reacting material inlet 114 enters under the effect of air distributor 150
Agent contacts, it is to avoid the air-flow of the bigger flow velocity destruction to beds 130.
Second embodiment
Seeing Fig. 2, the present embodiment provides a kind of steam ascending manner radial flow reactors 200, and it provides with first embodiment
The structure of steam ascending manner radial flow reactors 100 roughly the same, the difference of the two is the adiabatic reaction in the present embodiment
Section 271 is arranged at the outside of reactor shell 210, and the cylinder 242 that confluxes in the present embodiment uses silk screen to make.
In the present embodiment, steam ascending manner radial flow reactors 200 includes reactor shell 210 and adiabatic reactor 290,
This adiabatic reactor 290 connects with reactor shell 210.
Adiabatic reactor 290 is provided with pre-reaction import 292, adiabatic reaction section 291 and pre-reaction outlet 293, pre-reaction
Outlet 293 connects with the reacting material inlet 114 of reactor shell 210, and this adiabatic reactor 290 is positioned at reactor shell 210
Outside, and both are split-type structural, and reacting gas is entered in adiabatic reactor 290 by pre-reaction import 292, and absolutely
Thermal response section 291 carries out pre-reaction, after pre-reaction, by pre-reaction outlet 293 entrance reacting material inlet 114, thus instead
React in answering device housing 210.
The present embodiment, by reacting gas being carried out pre-reaction outside reactor shell 210, can preferably detect and control
The pre-reaction situation of reaction mass, additionally, the catalyst loading and unloading of pre-reaction section is more convenient.
Meanwhile, in the present embodiment, the cylinder 242 that confluxes uses silk screen to make, and fills between cylinder 242 and collecting pipe 143 confluxing
Fill out inert ceramic balls layer, silk screen is effectively supported.The network structure of silk screen can not only avoid catalyst to enter collecting pipe 143
In, also ensure that good air penetrability simultaneously.In the present embodiment, by arranging the cylinder 242 that confluxes that silk screen is made, it is not necessary to use and open
The tube structure in hole, making is more prone to, and equipment cost is lower.
3rd embodiment
Seeing Fig. 3, the present embodiment provides a kind of steam ascending manner radial flow reactors 300, and it provides with first embodiment
The structure of steam ascending manner radial flow reactors 100 roughly the same, the difference of the two is the adiabatic reaction in the present embodiment
Section 391 is arranged at the lower section of reacting material inlet 114, and is positioned at the top of shunt cylinder 141.
Adiabatic reaction section 391 is positioned at the lower section of reacting material inlet 114, the top of shunt cylinder 141, and with Vapor Sink house steward
122 contacts.Owing to the heat exchange area in this section of beds unit volume is less, it is accordingly regarded as adiabatic reaction section.Reaction
Gas enters in reactor shell 110 from reacting material inlet 114, then enters under the catalyst action of adiabatic reaction section 391
Row pre-reaction, the reacting gas after pre-reaction enters split channel, then enters beds 130 through third through-hole 146 and enter
Row catalytic reaction, reacted material, by the second through hole 145 on cylinder 142 and the first through hole on collecting pipe 143 of confluxing
144 enter in collecting pipe 143, and discharge from reacting material outlet 115.
In sum, this utility model by arranging shunt cylinder 141, conflux cylinder 142 and collecting pipe 143, shunt cylinder 141,
Conflux cylinder 142 and collecting pipe 143 be sequentially communicated, and beds 130 is arranged at shunt cylinder 141 and confluxes between cylinder 142,
Realizing reacting gas radial through beds 130, circulation area is big, and system is forced down.On the steam that this utility model provides
The pressure drop of lift-type radial flow reactors 100 is only the 10～50% of axial flow reactor pressure drop.Catalyst packing is outside tube bank, cold
But water flows in tube side, removes the heat that reaction produces, whole heat-exchanging tube bundle 120 uniformity of temperature profile by vaporization, it is to avoid
Localized hyperthermia, effectively reduces catalyst carbon deposit or inactivation risk, greatly reduces heat-exchanging tube bundle 120 and want material high temperature heat-resistant
Ask, effectively reduce equipment investment.By-product high pressure or middle pressure steam, good in economic efficiency simultaneously.By controlling steam outlet pressure
Power, can control the reaction temperature of isothermal section, whole response system temperature flexible adjustment, effectively.Adiabatic reaction section 191 is set, right
Reaction mass carries out pre-reaction, eliminates part harmful constituent in reaction mass, and preheats reaction mass so that it is reaches relatively
For preferable feed state.Therefore this utility model has reaction pressure reduction, the advantage such as reduced investment, flexible adjustment.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a steam ascending manner radial flow reactors, it is characterised in that include reactor shell, heat-exchanging tube bundle, catalyst bed
Layer, shunt cylinder, conflux cylinder and collecting pipe, and the top of described reactor shell is provided with reacting material inlet and moisture outlet, described
The bottom of reactor shell is provided with reacting material outlet, cooling water inlet and catalyst discharge port, described moisture outlet and institute
Stating the top connection of heat-exchanging tube bundle, described cooling water inlet connects with the bottom of described heat-exchanging tube bundle；Described shunt cylinder is set in
The outside of the described cylinder that confluxes, described in conflux the inner chamber of cylinder and the inner space of described shunt cylinder, described in the jacket casing that confluxes be located at described
The outside of collecting pipe, the inner space of the inner chamber of described collecting pipe and the described cylinder that confluxes, the inner chamber of described shunt cylinder with described instead
The inner space of device housing, described beds is answered to be arranged in described shunt cylinder and the described gap confluxed between cylinder, institute
Stating heat-exchanging tube bundle and pass described beds, the bottom of described collecting pipe connects with described reacting material outlet, described steam
Ascending manner radial flow reactors also includes adiabatic reaction section, and described adiabatic reaction section connects with described reacting material inlet, described
It is provided with catalyst in adiabatic reaction section.
Steam ascending manner radial flow reactors the most according to claim 1, it is characterised in that described heat-exchanging tube bundle is located on
The outside of the described cylinder that confluxes, described adiabatic reaction section includes internal layer adiabatic reaction section and secondary insulation conversion zone, described heat exchanger tube
Described beds between bundle and described shunt cylinder forms described secondary insulation conversion zone, described heat-exchanging tube bundle and described remittance
Described beds between flow cartridge forms described internal layer adiabatic reaction section.
Steam ascending manner radial flow reactors the most according to claim 2, it is characterised in that described secondary insulation conversion zone
Radial thickness be described shunt cylinder to described in conflux cylinder radial distance 5%～40%；Described internal layer adiabatic reaction section
Radial thickness be described shunt cylinder to described in conflux cylinder radial distance 2%～35%.
Steam ascending manner radial flow reactors the most according to claim 1, it is characterised in that described adiabatic reaction section is arranged
In described reactor enclosure body, described adiabatic reaction section is positioned at the lower section of described reacting material inlet, and is positioned at described shunt cylinder
Top.
Steam ascending manner radial flow reactors the most according to claim 1, it is characterised in that described steam ascending manner is radially
Flow reactor also includes adiabatic reactor, and it is external that described adiabatic reactor is positioned at described reactor enclosure, and described adiabatic reaction section sets
Putting in described adiabatic reactor, described adiabatic reactor is provided with pre-reaction import and pre-reaction outlet, and described pre-reaction goes out
Mouth connects with described reacting material inlet.
Steam ascending manner radial flow reactors the most according to claim 1, it is characterised in that the top of described collecting pipe is close
Envelope, the barrel of described collecting pipe is provided with multiple first through hole, and the inner chamber of described collecting pipe and the inner chamber of the described cylinder that confluxes pass through
Described first through hole connection；The barrel of described shunt cylinder is provided with multiple third through-hole, the inner chamber of described shunt cylinder and described instead
The inner chamber answering device housing is connected by described third through-hole, there is gap, shape between described shunt cylinder and described reactor shell
Become split channel.
Steam ascending manner radial flow reactors the most according to claim 1, it is characterised in that described in the cylinder that confluxes be provided with many
Individual second through hole, described in the conflux inner chamber of cylinder connected by described second through hole with the inner chamber of described shunt cylinder.
Steam ascending manner radial flow reactors the most according to claim 1, it is characterised in that described in conflux cylinder by silk screen system
Become.
Steam ascending manner radial flow reactors the most according to claim 1, it is characterised in that described heat-exchanging tube bundle includes many
Root heat exchanger tube, Vapor Sink house steward, cooling supply mains, upper perforated plate and lower perforated plate, the top of described Vapor Sink house steward and described steam
Outlet, the bottom of described Vapor Sink house steward is connected with described upper perforated plate, the top of described cooling supply mains and described down tube
Plate connects, and the bottom of described cooling supply mains connects with described cooling water inlet, and described heat exchanger tube passes through described upper perforated plate and institute
State lower perforated plate to be fixed in described reactor enclosure body.
Steam ascending manner radial flow reactors the most according to claim 9, it is characterised in that described Vapor Sink house steward, institute
The quantity stating cooling supply mains, described moisture outlet, described cooling water inlet, described upper perforated plate and described lower perforated plate is 1～6
Individual.
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| CN201620556733.8U CN205700479U (en) | 2016-06-08 | 2016-06-08 | Steam ascending manner radial flow reactors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833804A (en) * | 2016-06-08 | 2016-08-10 | 成都赛普瑞兴科技有限公司 | Steam rising type radial-flow reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833804A (en) * | 2016-06-08 | 2016-08-10 | 成都赛普瑞兴科技有限公司 | Steam rising type radial-flow reactor |
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