CN207576354U - Can fixed catalyst fixed bed - Google Patents
Can fixed catalyst fixed bed Download PDFInfo
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- CN207576354U CN207576354U CN201721362236.5U CN201721362236U CN207576354U CN 207576354 U CN207576354 U CN 207576354U CN 201721362236 U CN201721362236 U CN 201721362236U CN 207576354 U CN207576354 U CN 207576354U
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- filter
- fixed bed
- gas outlet
- cylinder
- solid catalyst
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Abstract
The utility model discloses it is a kind of can fixed catalyst fixed bed, including being provided with air inlet, gas outlet and the cylinder of leakage fluid dram, further include first filter；First filter is set on gas outlet and positioned at one end of inner barrel, for stopping that solid catalyst discharges cylinder by gas outlet.Reaction gas enters after inner barrel reacts, and fixed bed is left from gas outlet.The setting of first filter makes that originally the solid catalyst that fixed bed is left in gas outlet together may be passed through with reaction gas, is stopped by first filter, be stored in inner barrel always, first filter plays the role of fixed catalyst.
Description
Technical field
The utility model is related to gas-solid contact reactor technology fields, can fixed catalyst more specifically to one kind
Fixed bed.
Background technology
Fixed bed is widely used in heterogeneous catalytic reaction.In general, fixed bed has upper cover, low head and cylinder.Cylinder
Solid catalyst is placed in vivo, gas enters cylinder from the flange port of upper cover, in the effect of inner barrel solid catalyst
Under react after, leave fixed bed from the flange port of low head.
Fixed bed using the above structure, the solid catalyst of inner barrel can not usually be fixed on the fixation in cylinder
Region, cause reaction gas from the flange of low head leave fixed bed when, the solid catalyst in cylinder is taken out of together, causes
Solid catalyst in cylinder is constantly reduced, and influences the catalytic effect of fixed bed.
In conclusion how to provide a kind of fixed bed, can avoid the solid catalyst of inner barrel by gas outlet from
Fixed bed is opened, is a problem to be solved by those skilled in the art.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of fixed bed, can avoid the solid catalysis of inner barrel
Agent leaves fixed bed by gas outlet.
To achieve these goals, the utility model provides following technical solution：
It is a kind of can fixed catalyst fixed bed, including being provided with air inlet, gas outlet and the cylinder of leakage fluid dram, further include
First filter, the first filter is set on the gas outlet and positioned at one end of the inner barrel, solid for stopping
Body catalyst discharges the cylinder by the gas outlet.
Preferably, the first filter includes stainless steel metal filter screen device.
Preferably, the stainless steel metal filter screen device includes the netted cavity body structure of cuboid, and the cuboid is netted
Cavity body structure is equipped with the interface for being arranged the gas outlet end.
Preferably, the end of the gas outlet and the interface be respectively provided with can be in mating connection flange apparatus.
Preferably, it further includes for preventing second filter of the solid catalyst by the air inlet outflow cylinder,
Second filter is installed on the air inlet and positioned at one end of the inner barrel.
Preferably, the leakage fluid dram is equipped with the third filter for preventing solid catalyst from being flowed out from the leakage fluid dram.
Preferably, the third filter includes at least three-layer metal silk screen, the circulation of at least three layers woven wire
Hole, which intersects, stacks setting.
Fixed bed provided by the utility model including being equipped with air inlet, gas outlet and the cylinder of leakage fluid dram, further includes first
Filter, first filter is set on gas outlet close to one end of inner barrel, for stopping that solid catalyst leaves cylinder.
Reaction gas enters fixed bed from air inlet, and fixed bed is left from gas outlet after inner barrel reacts.By
Gas outlet is provided with first filter, makes that gas outlet may be passed through with reaction gas originally and leaves the solid of fixed bed together and urge
Agent is stopped by first filter, and holding is stayed in inside Solid Bed.First filter makes solid catalysis device be stored in cylinder always
Inside plays the role of fixed catalyst.
Description of the drawings
It 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 the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is provided the sectional view of specific embodiment by the utility model.
Reference numeral in Fig. 1 is：
Air inlet 1, gas outlet 2, cylinder 3, leakage fluid dram 4, first filter 5, the second filter 6, third filter 7, method
Blue device 8.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
The core of the utility model is to provide a kind of fixed bed, and the solid catalyst of inner barrel can be avoided to pass through outlet
Mouth leaves fixed bed.
It please refers to Fig.1, the sectional view of specific embodiment is provided by the utility model.
The utility model provide it is a kind of can fixed catalyst fixed bed, including being provided with air inlet 1,2 and of gas outlet
The cylinder 3 of leakage fluid dram 4, further includes first filter 5；First filter 5 is set on one on gas outlet 2 and inside cylinder 3
End, for stopping that solid catalyst discharges cylinder 3 by gas outlet 2.
Specifically, 3 upper end of cylinder is provided with upper cover, upper cover is provided with air inlet 1, the side setting of lower end or lower end
There is low head, low head is equipped with gas outlet 2, graininess or other shapes of solid catalyst are placed with inside cylinder 3.Reaction gas
Enter cylinder 3 from upper end air inlet 1, in the anti-raw reaction in 3 inside of cylinder, the gas after the completion of reacting under the action of solid catalyst
Body leaves fixed bed from gas outlet 2.
Air inlet 1 and exhaust outlet all can be communicating pipe inside and outside tubular structure, one end of wherein tubular structure is located at
Inside cylinder 3, the other end is then located at 3 outer end of cylinder.One end that gas outlet 2 is located inside cylinder 3 is provided with first filter 5,
First filter 5 can be the structures such as netted or cellular, for stop solid catalyst reacted after gas discharge and fix
Bed.
Optionally, the structure of above-mentioned cylinder 3 can also there are many, such as air inlet 1 and gas outlet 2 can be arranged in addition to
Upper end, the other positions of lower end as long as ensureing the difference of the two position, can realize that gas enters cylinder 3 and reacted.
Fixed bed provided by the utility model is provided with first filter 5 in gas outlet 2, and making originally may be with reaction
Gas leaves the solid catalyst of fixed bed by gas outlet 2 together, is stopped by first filter 5, and holding is stayed in Solid Bed
Portion.First filter 5 makes solid catalysis device be stored in always inside cylinder 3, plays the role of fixed catalyst.
Further, in order to ensure solid catalyst is not discharged fixed bed, the first filtering by the blocking of the first filter device
Device 5 includes stainless steel metal filter screen device.
Solid catalyst is usually graininess, and the first filter device can be filter screen, as long as the aperture of filter screen is less than
The minimum grain size of solid catalyst, you can ensure that solid catalyst is blocked in the side of filter screen, so as to stay in cylinder 3 always
It is internal.For example, when solid catalyst particle size range is in the range of 3mm to 15mm, the aperture of filter screen can be realized less than 3mm
To the blocking effect of solid catalyst.
In order to ensure that filter screen has enough support forces to solid catalyst, do not destroyed by solid catalyst, protect simultaneously
Demonstrate,proving filter screen has certain corrosion resistance and stability, can select material of the stainless steel metal as filter screen.
Stainless steel metal filter screen can be a plane mesh structure, and pass through wire or other fixed structures are fixed
In 2 one end of gas outlet, the solid catalyst of part thereon is used to support, and ensures that solid catalyst is not passed through stainless steel metal wire
Filter screen is stored in inside fixed bed always.
On the basis of above-described embodiment, in order to make stainless steel metal filter screen device do not influence catalysis reaction it is normal into
Row, stainless steel metal filter screen device includes the netted cavity body structure of cuboid, and the netted cavity body structure of cuboid is equipped with to cover
Set out the interface of 2 end of gas port.
The netted cavity body structure of cuboid refers to that the inside that stainless steel metal filter screen is surrounded is hollow cavity, shape is
The structure of cuboid, a face of cuboid are equipped with the interface coordinated with gas outlet 2.Interface can be set in gas outlet 2 one
End, can also by other means be fixed at the port of gas outlet 2.Compared to the reticular structure of plane, cavity body structure more has
Conducive to circulation of the reaction gas inside cylinder 3 with reacting, catalyst is avoided to get lodged in the pipe ends of gas outlet 2 and lead to outlet
The circulation of 2 gases of mouth is not smooth.
Selectable, stainless steel metal filter screen device may be the cavity body structure that the cambered surface towards gas outlet 2 surrounds.
In order to facilitate the connection of interface and gas outlet 2, the end of gas outlet 2 and interface are respectively provided with can the company of matching
The flange apparatus 8 connect.
One end that gas outlet 2 is located inside cylinder 3 is equipped with first flange, and the interface of stainless steel metal filter screen device is set
There is the second flange coordinated with first flange, connected between first flange and second flange by modes such as bolt, clips, and then
Gas outlet 2 and stainless steel metal filter screen device are fixed.
Further, on the basis of above-described embodiment, solid catalyst is by 1 outflow tube 3 of air inlet in order to prevent, Gu
Fixed bed further includes the second filter 6, and the second filter 6 is installed on one end on air inlet 1 and inside cylinder 3.
Second filter 6 can be the stainless steel metal filter screen device identical with 5 structure of first filter.Work as reaction gas
When body stops air inlet, since 3 air pressure inside of cylinder is larger, solid catalyst may be caused to be extruded fixed bed from air inlet 1, because
This can set the second filter 6 in one end that air inlet 1 is located inside cylinder 3.
Optionally, the second filter 6 can also be arranged on one end that air inlet 1 is located at outside cylinder 3.
Optionally, above-mentioned second filter 6 may be for filtration catalytic agent, other structures filter.
On the basis of any one above-mentioned embodiment, in order to better ensure that solid catalyst is in inside fixed bed,
Leakage fluid dram 4 is equipped with the third filter 7 for preventing solid catalyst from being flowed out from leakage fluid dram 4.
Fixed bed can form hydrops after coming into operation in the bottom of cylinder 3, need periodically from 4 drain of leakage fluid dram, and drain
During be easy to cause solid catalyst and be discharged fixed bed together with hydrops, therefore third is equipped in the upper end of leakage fluid dram 4
Filter 7 ensures that solid catalyst does not leave fixed bed from leakage fluid dram 4.
Further, in order to ensure the filter effect of the stabilization to solid catalyst of third filter 7, third filter
7 include at least three-layer metal silk screen, and at least the recirculation hole of three-layer metal silk screen, which intersects, stacks setting.
Specifically, third filter 7 can be reticular structure.It is used to exclude product to the outside of fixed bed in view of leakage fluid dram 4
Liquid, the aperture of reticular structure is too small to block discharge opeing process, influence drain efficiency；And aperture is larger can cause solid catalyst
Outflow, it is impossible to play the role of filter solid catalyst.
Therefore the multiple layer metal silk screen of aperture rather moderate can be selected, for example, using three-layer metal silk screen and each layer gold
The recirculation hole for belonging to silk screen intersects the screen packs stacked, while play Intercepting effects to solid catalyst.Three-layer metal silk screen
Hierarchical screening can be carried out to hydrops, in the case where ensureing drain effect, it is ensured that solid catalyst is not flowed out from leakage fluid dram 4,
Play the role of filtering solid catalyst.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Fixed bed provided by the utility model is described in detail above.Specific case used herein is to this
The principle and embodiment of utility model is expounded, and the explanation of above example is only intended to help to understand the utility model
Method and its core concept.It should be pointed out that for those skilled in the art, it is new not departing from this practicality
Under the premise of type principle, can also to the utility model, some improvement and modification can also be carried out, these improvement and modification also fall into this reality
With in novel scope of the claims.
Claims (7)
1. it is a kind of can fixed catalyst fixed bed, the cylinder including being provided with air inlet (1), gas outlet (2) and leakage fluid dram (4)
(3), which is characterized in that further include first filter (5), the first filter (5) is on the gas outlet (2) and is located at
Internal one end of the cylinder (3), for stopping that solid catalyst discharges the cylinder (3) by the gas outlet (2).
2. fixed bed according to claim 1, which is characterized in that the first filter (5) includes stainless steel metal mistake
Filter net device.
3. fixed bed according to claim 2, which is characterized in that the stainless steel metal filter screen device includes cuboid
Netted cavity body structure, the netted cavity body structure of cuboid are equipped with the interface for being arranged the gas outlet (2) end.
4. fixed bed according to claim 3, which is characterized in that the end of the gas outlet (2) and interface difference
Equipped with for can be in mating connection flange apparatus (8).
5. fixed bed according to claim 4, which is characterized in that further include to prevent solid catalyst by the air inlet
Mouthful (1) flow out the second filter (6) of the cylinder (3), second filter (6) be installed on the air inlet (1) and
One end internal positioned at the cylinder (3).
6. according to the fixed bed described in claim 1 to 5 any one, which is characterized in that the leakage fluid dram (4) is equipped with for preventing
The third filter (7) that only solid catalyst is flowed out from the leakage fluid dram (4).
7. fixed bed according to claim 6, which is characterized in that the third filter (7) includes at least three-layer metal
Silk screen, the recirculation hole of at least three layers woven wire, which intersects, stacks setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721362236.5U CN207576354U (en) | 2017-10-20 | 2017-10-20 | Can fixed catalyst fixed bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721362236.5U CN207576354U (en) | 2017-10-20 | 2017-10-20 | Can fixed catalyst fixed bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207576354U true CN207576354U (en) | 2018-07-06 |
Family
ID=62728257
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721362236.5U Active CN207576354U (en) | 2017-10-20 | 2017-10-20 | Can fixed catalyst fixed bed |
Country Status (1)
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|---|---|
| CN (1) | CN207576354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116251540A (en) * | 2023-02-15 | 2023-06-13 | 常州瑞华化工工程技术股份有限公司 | Bubbling bed reactor and method for continuous dehydration and esterification |
-
2017
- 2017-10-20 CN CN201721362236.5U patent/CN207576354U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116251540A (en) * | 2023-02-15 | 2023-06-13 | 常州瑞华化工工程技术股份有限公司 | Bubbling bed reactor and method for continuous dehydration and esterification |
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