CN208049901U - A kind of trickle bed reactor - Google Patents
A kind of trickle bed reactor Download PDFInfo
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- CN208049901U CN208049901U CN201820113399.8U CN201820113399U CN208049901U CN 208049901 U CN208049901 U CN 208049901U CN 201820113399 U CN201820113399 U CN 201820113399U CN 208049901 U CN208049901 U CN 208049901U
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- Prior art keywords
- preheater
- mixing
- reaction tube
- electric furnace
- bed reactor
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 50
- 239000003054 catalyst Substances 0.000 claims abstract description 42
- 210000004907 gland Anatomy 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 7
- 239000010432 diamond Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 36
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 4
- 238000003889 chemical engineering Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011949 solid catalyst Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model is related to chemical engineering experiment device design fields, more particularly to a kind of trickle bed reactor, including reacting tube body, first electric furnace, second electric furnace, discharging section, gland, catalyst bed, it mixes preheater and collects redistributor, due to mixing groove and the prominent face of diamond shape on preheater, increase heat exchange area and material turbulent flow, in addition the heat accumulation function of solid, material is set to easily reach the temperature of technological requirement, and it collects redistributor and material is pooled to reaction tube hub, the logistics for keeping mixing preheated just falls on catalyst bed center.The utility model provides a kind of novel trickle bed reactor, preheating, mixing, distributed function is combined, and then improve material preheating temperature control accuracy, makes that material is uniformly mixed, catalyst fully soaks.
Description
Technical field
The utility model is related to chemical engineering experiment device design field, more particularly to a kind of trickle bed reactor.
Background technology
It is trickle bed reactor, also known as trickle bed reactor to have a kind of reactor in chemical industry experimental rig field, it is energy
Gas and liquid cocurrent is set to pass through particulate solid catalyst bed, to carry out a kind of reaction of gas, liquid, solid phase reaction process
Device.Downward liquid flow is dispersed phase with a kind of very thin form of liquid film by solid catalyst filler, and continuous gas phase with
The form of cocurrent or countercurrent flows, but normal mode of operation is that air-flow and liquid stream cocurrent flow downward, to carry out gas-liquid solid phase
A kind of reactor of reaction process.Since fluid flow is small, formation drip shape or tricklet in bed, therefore referred to as trickle bed
Or trickle bed reactor.This reactor is particularly advantageous to the hydrogenation reaction in PETROLEUM PROCESSING.
Under normal conditions, reaction requires material to want vapour-liquid to be mixed before entering catalyst bed, and subscribes to specified
Temperature will come into full contact with wetting catalyst into catalyst bed, so could obtain the authentic and valid data of evaluating catalyst.It is existing
Technology way is that one preheater of setting, reaction raw materials first pass through preheater and are heated to assigned temperature outside trickle bed, so
It is passed into trickle bed reactor again afterwards, by the filler or inert particulate filler on catalyst bed top mix laggard
Enter to catalyst bed and is reacted.
The technology generally used currently on the market has the following problems：(1) it is carried out outside reactor due to preheating, preheater
Have to catalyst bed through radiators such as piping, connectors, material arrival catalyst bed is difficult to keep former after leading to preheating
The preheating temperature come, even if by whole heat tracings such as preheater, conveying pipeline, connector or being placed in incubator, it is dead that there is also heating
Area and material supercooling, superheating phenomenon；(2) since the above raw material of at least two-phase of trickle bed reactor participates in reaction, preheater
There are larger buffering areas, cause two phase materials that can not continuously be flowed with plug flow according to processing compound, Flow of Goods and Materials can go out
Existing " slug flow " phenomenon, and then influence reaction effect；(3) due to material, especially liquid material in the reactor initial mixing,
It is distributed bad, wall stream, bias current, channel occurs in fixed bed reactors, causes gas-liquid mixed irregular, catalyst surface cannot fill
Divide effective wetting, therefore influences evaluating catalyst effect.Based on the above circumstances, it needs to design a kind of preheating, mixing, distribution work(
The trickle bed reactor that can be combined, and then solve not high material preheating temperature control accuracy, mixing unevenness, catalyst profit
Wet insufficient problem.
Utility model content
In view of problem above, the utility model provides a kind of novel trickle bed reactor, preheating, mixing, distribution work(
It can combine, and then improve material preheating temperature control accuracy, make that material is uniformly mixed, catalyst fully soaks.
In order to realize that above-mentioned purpose of utility model, the utility model provide following technical scheme：
A kind of trickle bed reactor in the utility model, including reaction tube body, the first electric furnace, the second electrical heating
Stove, discharging section, gland and catalyst bed further include mixing preheater and collect redistributor, and the mixing preheater is located at
Topmost, the mixing preheater is solid round steel, plays the role of accumulation of heat, solid circular pipe is more with respect to the hollow circular-tube efficiency of heating surface
Height, uniformity of temperature profile avoid local heating from being subcooled or overheat, and the reaction tube body is located at the lower section of mixing preheater, institute
It states reaction tube body to link together with preheater is mixed, reaction tube body is selected to be connect with mixing preheater in the utility model
Design and mating high-precision electric heating stove together avoids material from being transported to instead relative to the prior art of external preheater
It answers device to cause thermal loss in the process, material preheating temperature is made to be easy to be precisely controlled., the gland, which is arranged, is mixing preheater
Outside, first electric furnace are located at the periphery of reaction tube body, and second electric furnace is located at the outer of catalyst bed
It encloses, the catalyst bed is located at the underface of reaction tube body, is equipped with and receives between the catalyst bed and reaction tube body
Collect redistributor, the lower part for collecting redistributor is equipped with sealing plate, and the collection redistributor is funnel shaped, with reaction tube
Inner wall seamless welding, compared with the existing technology in common Ceramic Balls, glass marble or woven wire etc., this collection redistributor energy
It is enough that the material flow down from mixing preheater is pooled to reaction tube hub by the effect for collecting redistributor, mixing is made to preheat
Good logistics just falls on catalyst bed center, prevents wall stream, bias current, channel, is conducive to reaction mass and catalyst
It comes into full contact with；The discharging section is located at the lowermost end of reactor, carries negative thread on the gland, band on the reactor body
There is male thread, gasket is additionally provided between the gland and reactor body, if trunk diameter is arranged in the top of the mixing preheater
To distribution hole, the lower part of the mixing preheater is to open several spiral grooves in an axial direction in filled circles steel surface, and the spiral is recessed
Slot is divided to two groups, and one of which dextrorotation, another group left-handed, and spiral groove associated cross described in two groups is arranged, the result is that in round steel table
Multiple " diamond shapes " prominent face is formed, increases heat exchange area and material turbulent flow, the heat accumulation function of solid, makes material hold very much in addition
Easily reach the temperature of technological requirement；The spiral groove slotted section of the mixing preheater is fitted close with reaction tube, shape
At orderly logistics corridor straggly, material flows downward when by filled circles steel surface from topmost portion stream, first by radially dividing
Cloth hole realizes first distribution, and in the staggeredly slype formed with reaction tube by " diamond shape " by protrusion, liquid is logical
Shunting step by step, interflow and turbulent flow are crossed, reaches geometry grade and efficiently mixes.Referring now in the prior art using the mixed of metal mesh
Conjunction effect, which has, to be obviously improved.
Further, the filled circles steel part of the mixing preheater is process through numerically-controlled machine tool, the mesh done so
's：First, reducing dead angle and material lagging；Second is that it is smooth to be conducive to logistics；Third, entity has accumulation of heat effect, is conducive to raising and adds
The thermal efficiency；Four are easy for dismounting, replace.
Further, several apertures are opened up on the lower part sealing plate for collecting redistributor.
Further, the gasket is rubber "O"-ring.Material first preheats outside reactor and leads to again in the prior art
Reactor, therefore feed inlet handles the condition of high temperature with reactor connecting component, so feed pipe can only be selected with reactor junction
Select hard sealing, because it is hard be sealed in during repeated disassembled and assembled can caused by wear, leakage accident occurs often, reaction service life is short.,
And the utility model warming member and heating element are all below charging connector, are cold materials by material herein, thus
Soft seal mode can be used, such as rubber "O"-ring, you can satisfactory sealing performance is reached, as long as "O"-ring is replaced in dismounting every time,
Reactor can be reused infinitely, it is not only economical but also durable.
Further, the gland links together tube body is reacted with preheater is mixed.
Further, first electric furnace provides heat source for mixing preheater.
Further, second electric furnace provides heat source for catalyst bed.
Further, the preheating temperature of first electric furnace is set and is controlled by intelligence instrument or PLC.
Further, the gasket can also be flat shim.
The advantages of the utility model and advantageous effect are：A kind of novel trickle bed reactor is provided, preheating, is mixed
Splitting or integrating cloth function combines, so improve material preheating temperature control accuracy, make material be uniformly mixed, catalyst it is abundant
Wetting.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is trickle bed structure of reactor schematic diagram.
Reference sign
1. mixing 2. sealing element 3. of preheater reacts 4. first electric furnace of tube body
5. collecting 8. gland of redistributor 6. second electric furnace, 7. discharging section, 9. distribution hole
10. catalyst bed
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and the protection model of the utility model cannot be limited with this
It encloses.
Embodiment 1
A kind of trickle bed reactor, as shown in Figure 1, including reaction tube body 3, the first electric furnace 4, the second electric furnace
6, discharging section 7, gland 8 and catalyst bed 10 further include mixing preheater 1 and collect redistributor 5, and mixing preheater 1 is set
Topmost, mixing preheater 1 is solid round steel, is process through numerically-controlled machine tool.Reaction tube body 3 is located at mixing preheater 1
Lower section, reaction tube body 3 link together with preheater 1 is mixed, gland 8 be arranged mix preheater 1 outside, gland 8
Reaction tube body 3 is linked together with preheater 1 is mixed, the first electric furnace 4 is located at the periphery of reaction tube body 3, described
Second electric furnace 6 is located at the periphery of catalyst bed 10, and the second electric furnace 6 is that catalyst bed 10 provides heat source.First
Electric furnace 4 provides heat source for mixing preheater, and preheating temperature is set and controlled by intelligence instrument.Catalyst bed 10 is located at instead
The underface of tube body 3 is answered, is additionally provided between catalyst bed 10 and reaction tube body 3 and collects redistributor 5, collect redistribution
The lower part of device 5 is equipped with sealing plate, and several apertures are opened up on sealing plate.Collection redistributor 5 is funnel shaped, seamless with reaction tube
Welding, the effect for collecting redistributor 5 is that material is pooled to reaction tube hub, and the logistics for keeping mixing preheated, which is just fallen on, urges
Agent bed center, prevents wall stream, bias current, channel, is conducive to reaction mass and is come into full contact with catalyst；Discharging section 7 is set
Negative thread is carried on the lowermost end of reactor, gland 8, and male thread, gland 8 and reactor body 3 are carried on reactor body 3
Between be additionally provided with gasket 2, gasket 2 is rubber "O"-ring, primarily serves sealing function.Mix the top setting of preheater 1
The lower part in several radial distribution holes 9, the mixing preheater 1 is to open several spiral grooves, spiral shell in an axial direction in filled circles steel surface
Rotation groove is divided to two groups, and one of which dextrorotation, another group left-handed, two groups of spiral groove associated cross settings, the result is that in round steel table
Multiple " diamond shapes " prominent face is formed, increases heat exchange area and material turbulent flow, the heat accumulation function of solid, makes material hold very much in addition
Easily reach the temperature of technological requirement；The spiral groove slotted section and reaction tube for mixing preheater 1 are fitted close, and are formed wrong
Fall orderly logistics corridor.
Embodiment 2
A kind of trickle bed reactor, as shown in Figure 1, including reaction tube body 3, the first electric furnace 4, the second electric furnace
6, discharging section 7, gland 8 and catalyst bed 10 further include mixing preheater 1 and collect redistributor 5, and mixing preheater 1 is set
Topmost, mixing preheater 1 is solid round steel, is process through numerically-controlled machine tool, the purpose done so：When reduce dead angle and
Material lagging；Second is that it is smooth to be conducive to logistics；Third, entity has accumulation of heat effect, be conducive to improve the efficiency of heating surface.React tube body 3
It is located at the lower section of mixing preheater 1, reaction tube body 3 links together with preheater 1 is mixed, and the setting of gland 8 is preheated in mixing
The outside of device 1, gland 8 link together tube body 3 is reacted with preheater 1 is mixed, and the first electric furnace 4 is located at reaction tube sheet
The periphery of body 3, second electric furnace 6 are located at the periphery of catalyst bed 10, and the second electric furnace 6 is catalyst bed 10
Heat source is provided.First electric furnace 4 provides heat source for mixing preheater, and preheating temperature is set and controlled by PLC.Catalyst bed
10 are located at the underface of reaction tube body 3, are additionally provided between catalyst bed 10 and reaction tube body 3 and collect redistributor 5, received
The lower part for collecting redistributor 5 is equipped with sealing plate, and several apertures are opened up on sealing plate.Collection redistributor 5 is funnel shaped, with reaction tube
Inner wall seamless welding, the effect for collecting redistributor 5 is that material is pooled to reaction tube hub, and the logistics for keeping mixing preheated is just
Catalyst bed center is fallen on well, prevents wall stream, bias current, channel, is conducive to reaction mass and is come into full contact with catalyst；Go out
Material section 7 is located at the lowermost end of reactor, and negative thread is carried on gland 8, male thread, gland 8 and reaction are carried on reactor body 3
Gasket 2 is additionally provided between device ontology 3, gasket 2 is no asbestos seal gasket.If trunk diameter is arranged in the top for mixing preheater 1
To distribution hole 9, the lower part of the mixing preheater 1 is to open several spiral grooves, spiral groove in an axial direction in filled circles steel surface
It is divided to two groups, one of which dextrorotation, another group left-handed, two groups of spiral groove associated cross settings, the result is that being formed in round steel table more
A " diamond shape " dashes forward face, increases heat exchange area and material turbulent flow, the heat accumulation function of solid, makes material easily reach in addition
The temperature of technological requirement；The spiral groove slotted section and reaction tube for mixing preheater 1 are fitted close, and are formed straggly orderly
Logistics corridor.
If the air-liquid material come from charge door gets off to radial distribution hole 9 to distribute along 1 upper vertical channel of mixing preheater
Mainstream stock, then respectively the overflow of stream stock extremely mixes 1 lower part helical groove of preheater and " diamond shape " protrusion and reaction tube gap shape
At several mixed cells so that two strands or a plurality of fluids is generated cutting, shearing, rotation when logistics is followed by mixed cell
With re-mix, reach fine dispersion and well-mixed purpose between fluid.Due to mixing preheater 1 and collect redistributor
5 with 10 three of catalyst bed in a reaction tube, flow direction of material vertical arrangement successively, seamless connection, therefore, mixing,
Preheated material is not in phase separation or preheating temperature deviation.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of trickle bed reactor, including reaction tube body, the first electric furnace, the second electric furnace, discharging section, gland and
Catalyst bed, which is characterized in that further include mixing preheater and collection redistributor, the mixing preheater is located at most upper
End, the mixing preheater is solid round steel, and the reaction tube body is located at the lower section of mixing preheater, the reaction tube body
It links together with preheater is mixed, the mixing preheater is linked together by gland and reactor body, the gland
Gasket is additionally provided between reactor body, several radial distribution holes, the mixing is arranged in the top of the mixing preheater
The lower part of preheater is to open several spiral grooves in an axial direction in filled circles steel surface, and the spiral groove is divided to two groups, one of which
Dextrorotation, another group left-handed, and spiral groove associated cross described in two groups is arranged, described on round steel surface at multiple " diamond shapes " prominent face
The spiral groove slotted section and reaction tube for mixing preheater are fitted close, and form orderly logistics corridor straggly, described
First electric furnace is located at the periphery of reaction tube body, and second electric furnace is located at the periphery of catalyst bed, described to urge
Agent bed is located at the underface of reaction tube body, and collection redistribution is additionally provided between the catalyst bed and reaction tube body
Device, the collection redistributor are funnel-form, and with reaction tube seamless welding, the discharging section is located at the most bottom of reactor
End.
2. a kind of trickle bed reactor according to claim 1, which is characterized in that the solid round steel of the mixing preheater
Component is process through numer centre.
3. a kind of trickle bed reactor according to claim 1, which is characterized in that the lower part for collecting redistributor is set
There is sealing plate, several apertures are opened up on the lower part sealing plate for collecting redistributor.
4. a kind of trickle bed reactor according to claim 1, which is characterized in that the gasket is rubber "O"-ring
Or plain cushion, play sealing function.
5. a kind of trickle bed reactor according to claim 1, which is characterized in that first electric furnace is that mixing is pre-
Hot device provides heat source.
6. a kind of trickle bed reactor according to claim 1, which is characterized in that second electric furnace is catalyst
Bed provides heat source.
7. a kind of trickle bed reactor according to claim 1, which is characterized in that first electric furnace and second adds
The heating temperature of hot stove is set separately and is controlled by intelligence instrument or PLC.
8. a kind of trickle bed reactor according to claim 1, which is characterized in that carry negative thread, institute on the gland
It states and carries male thread on reactor body, the gland and reactor body are connected through a screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820113399.8U CN208049901U (en) | 2018-01-23 | 2018-01-23 | A kind of trickle bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820113399.8U CN208049901U (en) | 2018-01-23 | 2018-01-23 | A kind of trickle bed reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208049901U true CN208049901U (en) | 2018-11-06 |
Family
ID=63995244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820113399.8U Withdrawn - After Issue CN208049901U (en) | 2018-01-23 | 2018-01-23 | A kind of trickle bed reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208049901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108160011A (en) * | 2018-01-23 | 2018-06-15 | 上海尚信化工装置科技有限公司 | A kind of trickle bed reactor |
-
2018
- 2018-01-23 CN CN201820113399.8U patent/CN208049901U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108160011A (en) * | 2018-01-23 | 2018-06-15 | 上海尚信化工装置科技有限公司 | A kind of trickle bed reactor |
| CN108160011B (en) * | 2018-01-23 | 2024-03-15 | 上海迪化科技股份有限公司 | Trickle bed reactor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 708, Building 6558, Tingwei Road, Jinshan Industrial Zone, Shanghai, 201500 Patentee after: Shanghai Dihua Technology Co.,Ltd. Address before: 201500 room 708, 4 Ting Wei Road, Jinshan Industrial Zone, Jinshan District, Shanghai, 6558 Patentee before: SHANGHAI SHANGXIN CHEM-UNIT TECHNOLOGY Co.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181106 Effective date of abandoning: 20240315 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181106 Effective date of abandoning: 20240315 |