CN207357168U - A kind of gas distribution structure, gas distributor - Google Patents
A kind of gas distribution structure, gas distributor Download PDFInfo
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- CN207357168U CN207357168U CN201721135964.2U CN201721135964U CN207357168U CN 207357168 U CN207357168 U CN 207357168U CN 201721135964 U CN201721135964 U CN 201721135964U CN 207357168 U CN207357168 U CN 207357168U
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Abstract
A kind of gas distribution structure, gas distributor, belong to field of chemical equipment.Gas distribution structure includes multiple flow distribution plates, and flow distribution plate includes being mutually matched the Circular Plate of connection and conical baffled, conical baffled restriction conical cavity.Circular Plate has plate hole, and Circular Plate is connected to initiating terminal and plate hole and starting open communication, and along preset direction, the plate hole of arrangement and each Circular Plate in the form of interval forms passage is opposite and connects for multiple flow distribution plates.Curved baffle, curved baffle has arc convex, and the arc convex of curved baffle corresponds to the plate hole of the Circular Plate towards adjacent flow distribution plate.Gas distribution structure plays efficient guide functions for the flowing of gas, and gas is in each channel inner pressure equalization, velocity flow profile is uniform, resistance drop is small.Gas can be rapidly reached uniformly distributed state, uniformity is can reach at bed inlet section after distributor enters equipment, and air-flow turbulence and back-mixing degree are low, and uniformly distributed effect is good, and energy loss is small.
Description
Technical field
Field of chemical equipment is the utility model is related to, in particular to a kind of gas distribution structure, gas distributor.
Background technology
Gas gas distributor is a kind of very important equipment inner member.Gas gas distributor is widely used in tower
In the equipment such as device, adsorption tanks, reactor.The quality of its performance, can produce the even gas distribution effect in equipment and equipment performance
Tremendous influence.High performance gas gas distributor can mitigate high-velocity fluid into turbulent flow and disturbance state after equipment, make
It is horizontal that it reaches preferable uniformly distributedization in shorter distance.High performance gas gas distributor generally has following features：1)
Source of the gas uniform component distribution, reaches uniformity at bed inlet section；2) produced when fluid passes through gas gas distributor
Voltage drop value it is small, energy loss is few；3) uniformly distributed state can be rapidly reached after fluid gas coming through gas distributor, reduced as far as possible
Device height value；4) it is convenient to manufacture, simple in structure, convenient installation, cheap.
Continuous recently as petrochemical industry, the development of coal chemical industry and unit scale expands, and equipment internal diameter constantly increases,
The uniformly distributed difficulty of gas is also increasing in equipment, and gas bias current situation is serious in equipment, reduces the performance and equipment of equipment
The product index in exit, thus in equipment gas uniformly distributed problem into one of key issue of heavy construction developmental research,
Efficient inlet gas gas distributor is developed also to be particularly important.
Utility model content
In view of the problems of the prior art, the utility model proposes a kind of gas distribution structure, gas distributor, leads to
The airflow distribution state after optimization equipment entrance is crossed, even gas distribution difficulty is big in large scale equipment, gas bias current situation is tight to solve
Again, the problems such as gas turbulence situation is violent.
The utility model is realized in this way：
In the first aspect of the utility model, there is provided a kind of gas distribution structure.
A kind of gas distribution structure, it defines the first shunting zone and the second shunting zone for having and being distributed along preset direction.
Gas distribution structure includes：
Multiple flow distribution plates of the first shunting zone are arranged at, flow distribution plate is in truncated cone-shaped structure, and flow distribution plate includes the company of being mutually matched
The Circular Plate that connects and conical baffled, it is conical baffled to be formed by initiating terminal to clearing end extension, and initiating terminal is provided with starting opening,
Clearing end is provided with termination opening, the conical baffled conical cavity for limiting the open communication that is open, terminates with starting respectively, Circular Plate tool
There is plate hole, Circular Plate is connected to initiating terminal and plate hole is formed with starting open communication, multiple flow distribution plates along preset direction with interval
The form of passage is arranged and the plate hole of each Circular Plate is opposite and connects；
The curved baffle of the second shunting zone is arranged at, curved baffle has arc convex, and the arc convex of curved baffle
The plate hole of the corresponding Circular Plate towards adjacent flow distribution plate, arranged for interval between arc convex and adjacent flow distribution plate.
In a preferable example, the quantity of flow distribution plate is 2~4, and along preset direction, the plate hole of each Circular Plate
Aperture be gradually reduced, the outside diameter of each Circular Plate is gradually reduced.
In a preferable example, the plate hole of each Circular Plate has common longitudinal center line, and each Circular Plate
Plate hole connect to form central gas.
In a preferable example, first fluid passage is formed between adjacent flow distribution plate.
In a preferable example, second fluid passage is formed between adjacent curved baffle and flow distribution plate.
In a preferable example, curved baffle is provided through fluid bore.
In a preferable example, the percent opening of the fluid bore of curved baffle is 20~70%.
In a preferable example, multiple flow distribution plates, curved baffle are connected by bearing rib, and bearing rib is to connect
It is connected in the Circular Plate of flow distribution plate.
In a preferable example, the quantity of bearing rib is 4~8, and is arranged circumferentially about.
In the second aspect of the utility model, there is provided a kind of gas gas distributor.Gas gas distributor is included such as
Foregoing gas distribution structure.
The beneficial effect of such scheme：
Novel device inlet gas distributor provided by the utility model, in use, gas is entered by equipment entrance pipe
The central passage of gas distributor, after being buffered by central passage, each gas from the first shunting zone and the second shunting zone leads to respectively
Fluid bore on road and curved baffle enters inside equipment.Each passage plays efficient guide functions, gas for the flowing of gas
Body is in each channel inner pressure equalization, velocity flow profile is uniform, resistance drop is small.Gas can reach rapidly after distributor enters equipment
To uniformly distributed state, uniformity is can reach at bed inlet section, air-flow turbulence and back-mixing degree are low, and uniformly distributed effect is good, energy
Amount loss is small.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram of the flow distribution plate in the gas distribution structure that the utility model embodiment provides；
Fig. 2 shows the overlooking the structure diagram for the flow distribution plate that Fig. 1 is provided；
Fig. 3 is the structure diagram of the curved baffle in the gas distribution structure that the utility model embodiment provides；
Fig. 4 show the utility model embodiment provide gas distribution structure in flow distribution plate and curved baffle with respect to cloth
The structure diagram of seated position；
Fig. 5 shows the gas passage distributed architecture signal in the gas distribution structure that the utility model embodiment provides
Figure.
Icon：200- flow distribution plates；201- is conical baffled；202- Circular Plates；203- initiating terminals；204- clearing ends；205- plates
Hole；300- curved baffles；301- arc convex；500- upper covers；501- gas accesses；503- bearing ribs；The first gas of 901-
Body passage；902- second gas passages；903- third gas passages；904- central gas.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.Therefore, below to attached
The detailed description of the embodiment of the utility model provided in figure is not intended to limit claimed the scope of the utility model,
But it is merely representative of the selected embodiment of the utility model.Based on the embodiment in the utility model, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the model of the utility model protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship be based on orientation shown in the drawings or position relationship, or
The utility model product using when the orientation usually put or position relationship, be for only for ease of description the utility model and letter
Change description, rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for area
Divide description, and it is not intended that instruction or hint relative importance.
In the description of the utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can mechanically connect or be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can is the connection inside two elements.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
In the utility model, in the case of not contradiction or conflict, all embodiments, embodiment of the utility model
And feature can be mutually combined.In the utility model, conventional unit, component etc. both can be commercially available, can also
Made by oneself according to the utility model disclosure.It is normal to some in order to protrude the emphasis of the utility model in the utility model
The omission that the operation of rule and unit, component carry out, or be only briefly described.
Refering to Fig. 1 to Fig. 4.
Present embodiments provide a kind of gas distribution structure.Normally, gas distribution structure is used for entering in equipment
Gas is distributed, and gas is more evenly distributed, so that the problems such as avoiding or weakening air stream turbulence.
Usually, gas distribution structure be connected to equipment gas held, reaction chamber it is indoor.The gas held,
Reaction chamber is limited by the inner wall of equipment, such as Fig. 4, and equipment inner wall sets gas access 501 to be passed through the gas for needing to be distributed
Body.In the present embodiment, gas distribution structure is the inner wall for the upper cover 500 for being connected to equipment, and connects with gas access 501
It is logical, i.e., gas distribution structure is arranged on the flow path after gas into devices.
More clearly to describe gas distribution structure, according to its design feature, gas distribution structure definition has along default side
To the first shunting zone and the second shunting zone of distribution.In the first shunting zone and the second shunting zone, it is appropriate that gas distribution structure passes through
Structure design, different degrees of distribution can be produced to air-flow.Usually, the first shunting zone of aforementioned definitions and the second shunting
Area is integrally to flow to arrangement along gas.For example, when gas flows to B points by A points, point of the first shunting zone and the second shunting zone
Mode for cloth is that the first shunting zone is adjacent to A points and away from B points, and the second shunting zone is adjacent to B points and away from A points.Gas passes through first
One shunting zone is split, and is then partially into the second shunting zone and is continued to shunt.In the following description, the default side
To being that the overall of gas to be distributed flows to, as the aforementioned from A to B.
Below in conjunction with attached drawing, gas distribution structure is illustrated in more detail.
Gas distribution structure includes curved baffle 300 and multiple flow distribution plates 200.
Wherein, multiple flow distribution plates 200 are arranged at the first shunting zone.It should be noted that the particular number of flow distribution plate 200 can
To make choice as needed, so as to advantageously promoting gas distribution is advisable.The utility model does not limit its particular number
It is fixed.As a kind of optional example, the quantity of flow distribution plate 200 is 2 or 3 or 4.
Refering to Fig. 4, multiple flow distribution plates 200 (being three in the present embodiment) are overall in cone by proper shape and distribution
Shape structure.
Wherein, as depicted in figs. 1 and 2, flow distribution plate 200 is in truncated cone-shaped structure.In the present embodiment, flow distribution plate 200 includes phase
The mutually Circular Plate 202 and conical baffled 201 of matching connection.Connection mode can pass through between Circular Plate 202 and conical baffled 201
Both angle α as shown in Figure 4 adjusts.
Circular Plate 202 is planar structure, and through setting plate hole 205.The setting position of plate hole 205 can as needed into
Row selection, still, more preferably selects, plate hole 205 is at its center as one kind.The thickness of Circular Plate 202 also can be as needed
It is adjusted and improves.
Conical baffled 201 is generally conical shape, it is extended by initiating terminal 203 to clearing end 204 forms, and initiating terminal 203 is set
Starting opening is equipped with, clearing end 204 is provided with termination opening.Conical baffled 201 also have respectively with originating opening, terminating opening
The conical cavity of connection.Circular Plate 202 is defined with conical baffled 201 connection mode by being described below：Circular Plate 202 connects
In initiating terminal 203 and plate hole 205 and starting open communication.Foregoing multiple flow distribution plates 200 are formed logical along preset direction with interval
The form in road is arranged and the plate hole 205 of each Circular Plate 202 is opposite and connects；
The arrangement of multiple flow distribution plates 200 forms its shunting effect certain influence.Therefore, set in theory
When meter and actual manufacture gas distribution structure, the Circular Plate 202 of each flow distribution plate 200 can be made there is different distribution modes,
It can adjust on demand.For example, along preset direction, each 200 compartment of terrain of flow distribution plate arrangement, spaced apart flow distribution plate 200 is so that phase
First fluid passage is formed between adjacent flow distribution plate 200.The plate hole 205 of the correspondence Circular Plate 202 of each layer flow distribution plate 200 is opposite,
The plate hole 205 of each layer can and preset direction mutually orthogonal direction there are certain deviation, but with common
Central axis is preferred, and according to this, the connection of plate hole 205 of each Circular Plate 202 forms central passage.
Further, the size of the plate hole 205 of each layer Circular Plate 202 can be similar and different.As a kind of preferable real
Existing scheme, the aperture of the plate hole 205 of each Circular Plate 202 is gradually reduced, the outside diameter of each Circular Plate 202 is gradually reduced, and
It is to be gradually reduced according to preset direction.Refering to Fig. 2 and Fig. 4, the aperture of the plate hole 205 of Circular Plate 202 in first flow distribution plate 200
For D11, the outside diameter of Circular Plate 202 is D12, and conical baffled 201 maximum outside diameter is D13；Circular Plate in second flow distribution plate 200
The aperture of 202 plate hole 205 is D21；The aperture of the plate hole 205 of Circular Plate 202 is D31 in 3rd flow distribution plate 200.
In the utility model embodiment, each flow distribution plate 200 is centrosymmetric structure.The circle of the flow distribution plate 200 of each layer
Ring flat-plate 202 has the first public central axis, correspondingly, the flow distribution plate 200 of each layer conical baffled 201 also have it is public
Second central axis, and the first central axis and the second central axis are conllinear.Based on described above, the plate hole of each layer circular slab
Coaxial communication forms the central passage of supplied gas flowing.
Refering to Fig. 4, in the Circular Plate 202 and second flow distribution plate 200 in first flow distribution plate 200 between Circular Plate 202
Distance be h2, between the Circular Plate 202 in Circular Plate 202 and second flow distribution plate 200 in the 3rd flow distribution plate 200 away from
From for h3.The distance between Circular Plate 202 and foregoing 500 inner wall of upper cover in first flow distribution plate 200 are h1.
The curved baffle 300 for being included in gas distribution structure is disposed on the second shunting zone, and adjacent curved baffle
Second fluid passage is formed between 300 and flow distribution plate 200.Refering to Fig. 4, the section of the curved baffle 300 in the present embodiment is fan
Shape, and concrete structure can be adjusted by chord length L, radius R and central angle β.
As shown in figure 3, curved baffle 300 has arc convex 301, and the arc convex 301 of curved baffle 300 corresponds to court
To the plate hole 205 of the Circular Plate 202 of adjacent flow distribution plate 200.In other words, in preset direction, it is convex that curved baffle 300 forms arc
Face 301.The distance between Circular Plate 202 in the arc convex 301 of curved baffle 300 and the 3rd flow distribution plate 200 is h4.
As a kind of optional example, curved baffle 300 be by surface plate formed an arc convex 301 and
Into.In the embodiment of the utility model, the generally arcuate structure of curved baffle 300, i.e. curved baffle 300 have opposite arc
Shape convex surface 301 and arc-shaped concave, and formed by arc convex 301 to arc-shaped concave extension.As a kind of concrete implementation shape
Formula, curved baffle 300 can be a parts for sphere or spheroid outer wall.
Some in the utility model improve examples, and curved baffle 300 is provided through fluid bore, therefore along default side
It can directly pass through fluid bore to the gas of circulation.When curved baffle 300 does not open up fluid bore, fluid can be along its arc convex
301 movements.The number of openings of curved baffle 300 is preferred there are different selections using the percent opening of fluid bore as 20~70%.
As it was previously stated, gas distribution structure includes multiple flow distribution plates 200 and curved baffle 300.Multiple flow distribution plates 200 and arc
Shape baffle 300 has appropriate arranged distribution form.When multiple flow distribution plates 200 and the mutually arranged mode quilt of curved baffle 300
During fixed or restriction, as the entirety of gas distribution structure, it can be fixed by various modes.That is gas distribution structure can be with
Be fixed in the foregoing equipment for having a pending gas distribution, or be disposed in by way of being detachably connected need into
In the equipment of promoting the circulation of qi body distribution.
Therefore, when gas distribution structure is arranged in equipment, can be make flow distribution plate 200 and curved baffle 300 by
Appropriate location is separately fixed or maintained at according to set space arrangement mode.Therefore, flow distribution plate 200 and curved baffle
300 are set individually, can also be by appropriate adjusting, to obtain more while to keep in a manner of set space arrangement
Good gas distributed effect, and the tune of adaptability can also be made according to the input condition (speed, flow, component etc.) of gas
It is whole.
In the present embodiment, together with flow distribution plate 200 is fixedly connected with curved baffle 300.For example, gas is distributed
Structure setting bearing rib 503.Multiple flow distribution plates 200, curved baffle 300 are connected by bearing rib 503, and bearing rib
503 are connected in the Circular Plate 202 of flow distribution plate 200.In the example of gas distributor of bearing rib 503 is provided with,
Gas distributor is integrally connected on the inner wall of equipment by bearing rib 503 again.
Further, gas distribution structure has multiple bearing ribs 503, for example, the quantity of bearing rib 503 is 4~8
It is a, and be arranged circumferentially about.The size of bearing rib 503 is less than the gap between the flow distribution plate of different layers, again smaller than adjacent point
Gap between flowing plate and upper cover inner wall, again smaller than the gap between the arc convex of adjacent flow distribution plate and curved baffle,
To form multiple gas passages.In addition, in other examples of the utility model, through hole can also be set in bearing rib,
Using the passage flowed as gas.
Multiple gas distribution passages can be formed using gas distribution structure provided by the utility model, so as to realize
Preferable shunting effect.Fig. 5 is for details, reference can be made to, there is central gas 904, first gas passage 901, second gas passage
902, and third gas passage 903.
It should be noted that the structure of each flow distribution plate, curved baffle in the utility model can have different set
Meter.As a kind of specific optional example, D11—D21(the plate hole aperture of first circular slab and the plate hole of second circular slab
The difference in aperture) it is equal to D21—D31；D12—D22(difference of the outside diameter of first circular slab and the outside diameter of second circular slab) is equal to
D22—D32。
Novel device inlet gas distributor provided by the utility model, in use, gas is entered by equipment entrance pipe
The central passage of gas distributor, after being buffered by central passage, each gas from the first shunting zone and the second shunting zone leads to respectively
Fluid bore on road and curved baffle enters inside equipment.Each passage plays efficient guide functions, gas for the flowing of gas
Body is in each channel inner pressure equalization, velocity flow profile is uniform, resistance drop is small.Gas can reach rapidly after distributor enters equipment
To uniformly distributed state, uniformity is can reach at bed inlet section, air-flow turbulence and back-mixing degree are low, and uniformly distributed effect is good, energy
Amount loss is small.
In the present embodiment, only illustrated using gas as example, it is to be understood that the utility model carries
The gas distribution structure of confession can be used with other flowings, such as liquid, molten mass etc., is not limited with gas.By right
The material and structure of gas distribution structure carry out appropriate adjustment or improvement, can also be applied to other fluid applications.
Based on foregoing gas distribution structure, the utility model also proposed a kind of gas distributor.Gas distributor can
To set housing, gas distribution structure is fixed in housing.One end of housing sets fluid input connector.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of gas distribution structure, it is characterised in that the gas distribution structure defines first along preset direction distribution
Shunting zone and the second shunting zone, the gas distribution structure include：
Multiple flow distribution plates of first shunting zone are arranged at, the flow distribution plate is in truncated cone-shaped structure, and the flow distribution plate includes phase
The mutually Circular Plate and conical baffled of matching connection, it is described it is conical baffled formed by initiating terminal to clearing end extension, and the starting
End be provided with starting opening, the clearing end be provided with termination opening, it is described it is conical baffled restriction respectively with it is described starting opening,
The conical cavity for terminating open communication, the Circular Plate have a plate hole, and the Circular Plate is connected to the initiating terminal and described
Plate hole and the starting open communication, the multiple flow distribution plate along the preset direction in the form of interval forms passage arrangement,
And the plate hole of each Circular Plate is opposite and connect；
It is arranged at the curved baffle of second shunting zone, the curved baffle has an arc convex, and the curved baffle
The arc convex corresponds to the plate hole of the Circular Plate towards adjacent flow distribution plate, the arc convex and the adjacent flow distribution plate
Between arranged for interval.
2. gas distribution structure according to claim 1, it is characterised in that the quantity of the flow distribution plate is 2~4, and
Along the preset direction, the aperture of the plate hole of each Circular Plate is gradually reduced, the outside diameter of each Circular Plate gradually subtracts
It is small.
3. gas distribution structure according to claim 1 or 2, it is characterised in that the plate hole of each Circular Plate has
Common longitudinal center line, and the plate hole of each Circular Plate connects to form central gas.
4. gas distribution structure according to claim 1, it is characterised in that form first between the adjacent flow distribution plate
Fluid passage.
5. gas distribution structure according to claim 1, it is characterised in that the adjacent curved baffle and the shunting
Second fluid passage is formed between plate.
6. gas distribution structure according to claim 1, it is characterised in that the curved baffle is provided through fluid
Hole.
7. gas distribution structure according to claim 6, it is characterised in that the percent opening of the fluid bore of the curved baffle
For 20~70%.
8. gas distribution structure according to claim 1, it is characterised in that the multiple flow distribution plate, the curved baffle
Connected by bearing rib, and the bearing rib is connected in the Circular Plate of the flow distribution plate.
9. gas distribution structure according to claim 8, it is characterised in that the quantity of the bearing rib is 4~8,
And it is arranged circumferentially about.
10. a kind of gas gas distributor, it is characterised in that including gas distribution such as according to any one of claims 1 to 9
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135964.2U CN207357168U (en) | 2017-09-06 | 2017-09-06 | A kind of gas distribution structure, gas distributor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135964.2U CN207357168U (en) | 2017-09-06 | 2017-09-06 | A kind of gas distribution structure, gas distributor |
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| Publication Number | Publication Date |
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| CN207357168U true CN207357168U (en) | 2018-05-15 |
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ID=62351432
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139107A (en) * | 2020-01-09 | 2020-05-12 | 万华化学集团股份有限公司 | Regeneration method of molecular sieve of synthesis gas cooling box and gas distributor |
-
2017
- 2017-09-06 CN CN201721135964.2U patent/CN207357168U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139107A (en) * | 2020-01-09 | 2020-05-12 | 万华化学集团股份有限公司 | Regeneration method of molecular sieve of synthesis gas cooling box and gas distributor |
| CN111139107B (en) * | 2020-01-09 | 2020-11-24 | 万华化学集团股份有限公司 | Regeneration method of molecular sieve of synthesis gas cooling box and gas distributor |
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