CN200998661Y - Fast-cooling agitator - Google Patents
Fast-cooling agitator Download PDFInfo
- Publication number
- CN200998661Y CN200998661Y CNU2006201587184U CN200620158718U CN200998661Y CN 200998661 Y CN200998661 Y CN 200998661Y CN U2006201587184 U CNU2006201587184 U CN U2006201587184U CN 200620158718 U CN200620158718 U CN 200620158718U CN 200998661 Y CN200998661 Y CN 200998661Y
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- dividing plate
- logistics
- outlet
- quench mixer
- runner
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Abstract
The utility model discloses a quench mixer. The quench mixer comprises an inlet opening (19), an outlet opening (17) and flow passages (15), wherein the flow passages (15) are annular drum-shaped flow passages, the annular drum-shaped flow passages are enclosed by a multi-ring drum-shaped baffle plate (18), the inlet opening (19) is enclosed by the innermost circle baffle plate (22) of the drum-shaped baffle plate (18), the outlet opening (17) is arranged on the outermost circle drum-shaped baffle plate (20) of the drum-shaped baffle plate (18), object outflow openings (21) are arranged on all inner circle baffle plates, and a plurality of object outflow openings (21) are arranged on at least an circle of inner circle baffle plates, and the adjacent flow passages (15) are communicated through the object outflow openings (21). While the quench mixer provided by the utility model obtains good mixing effect, the overall height of a reactor can be reduced, and thereby the manufacture cost, the transport cost and the installation cost of the reactor are reduced.
Description
Technical field
The utility model relates to the reactor that exothermic reaction takes place, and relates more specifically to be applied to a kind of quench mixer in the reactor.
Background technology
Exothermic reaction is very general in petroleum refining and petrochemical process process, all is exothermic reactions as hydrocracking reaction, hydrofining reaction, gasoline upgrading reaction and alkylated reaction.In these exothermal reaction process, if the temperature of reaction logistics is not controlled, then catalyst in reactor bed temperature inside just might rise rapidly at short notice, and reach unmanageable degree, so-called " temperature runaway " phenomenon appears, influence catalyst activity and optionally performance, increase the carbon deposit speed of catalyst surface, reduce life of catalyst.
In such reactor, generally regulate and control the temperature of reaction logistics by suitable cooling means, usually the cooling means of taking is that the beds in the reactor is divided into multistage, replenishes cooling medium in the space between adjacent two-stage catalytic agent bed.Being divided into two sections with the catalyst in reactor bed is example, and the reactor inner member that cools off by additional cooling medium comprises: the supportive grid of reactor inlet distributor, top fabric swatch, epimere beds, cold medium inlet tube, collecting board, quench mixer, pre-distribution grid, distribution grid and reactor outlet gatherer.Be provided with cold medium inlet tube, collecting board, quench mixer, pre-distribution grid and distribution grid in the space between the supportive grid of epimere beds and the lower section catalyst bed top.
The course of work by adding the reactor that cooling medium cools off is as follows: reactant stream enters reactor by the reactor inlet distributor, be distributed to the top of first section beds again through the top fabric swatch, under the effect of catalyst, react, reacted high temperature substrate stream arrives the collecting board of bottom by the catalyst supportive grid, and tentatively mix with cold medium that cold medium inlet tube is introduced, the preliminary logistics that mixes enters quench mixer by the perforate on the collecting board, and in quench mixer, further mix, arrive pre-distribution grid by the mixed logistics of quench mixer, distribute in advance by pre-distribution grid, logistics after pre-the distribution arrives distribution grid, distribution grid makes and mixes the top that logistics is evenly distributed to next section beds, reaction is proceeded in the reaction logistics under the effect of catalyst, the reaction logistics is advanced in reactor so successively, flows through by the reactant of final stage beds and draws reactor by the exit collector of reactor.
In this reactor by additional cooling medium conditioned reaction temperature, because cooling medium causes hot-spot in the beds with the inhomogeneous meeting that mixes of the reaction logistics of heat, improve and the selectivity reduction in hot-spot place activity of such catalysts, carbon deposit on the catalyst increases fast, and because action of high temperature, the physical property of catalyst carrier is damaged, thereby causes the premature aging of catalyst.So whether cooling medium evenly mixes with the reaction logistics of heat is an important indicator that is related to reaction selectivity, and the mixing of cold and hot logistics is mainly carried out in quench mixer, so quench mixer is a kind of important component in this type of reactor.
CN2600160Y discloses a kind of quench mixer, as shown in Figure 1, this blender is annular tube shaped structure, this blender comprises logistics inlet 1 and 2, bend pipe runner 3 and 4, the first straight tube runner 6, annular channel 8 and 9, the second straight tube runner 11 and logistics outlet 12, the bend pipe runner 3 and the 4 and first straight tube runner 6 intersect at a little 5, the first straight tube runner 6 and annular channel 8 and 9 intersect at a little 7, the annular channel 8 and the 9 and second straight tube runner 11 intersect at a little 10, and logistics inlet 1 and 2 is positioned at the both sides of the first straight tube runner 6.The course of work of this quench mixer is as follows: the thermal response logistics that a last beds comes enters the tubulose quench mixer by the logistics inlet 1 and 2 of quench mixer respectively with the mixture of the cold medium that replenishes, two bursts of logistics flow to point 5 through bend pipe runner 3 and 4 respectively, bump and mix in the two bursts of logistics in point 5 places, enter the first straight tube runner 6 subsequently, the other end 7 places at the first straight tube runner 6, mix logistics and be divided into two strands once more, flow to the point 10 on opposite respectively along annular channel 8 and 9, bump once more and mix in the two bursts of logistics in point 10 places, enter the second straight tube runner 11 subsequently, arrive the pre-distribution grid of bottom at last by logistics outlet 12.Because this quench mixer is constituted by bend pipe runner 3 and 4, the first straight tube runner 6, annular channel 8 and the 9 and second straight tube runner 11, and the tubulose runner is arranged on the collecting board, when the gas phase flow is big in mixing logistics, need to adopt larger-diameter tubulose runner, thereby need to increase collecting board to the spatial altitude between the catalyst supportive grid of top, the total height that finally causes the augmenting response device, therefore, this quench mixer utilizes in the inner space of reactor and has deficiency.Also because this type of reactor mostly is high-tension apparatus, have thicker wall thickness, the increase of total reactor height will increase the gross weight of reactor, and then causes the increase of manufacturing expense, freight and mounting cost.
The utility model content
The purpose of this utility model provides the quench mixer of a kind of compact conformation and good mixing effect.
The utility model provides a kind of quench mixer, this quench mixer comprises inlet 19, outlet 17 and runner 15, wherein, described runner 15 is annular tubular runner, this annular tubular runner 15 is surrounded by multi-turn cylindrical partition 18, the inner ring dividing plate 22 of cylindrical partition 18 surrounds inlet 19, described outlet 17 is arranged on the outmost turns dividing plate 20 of cylindrical partition 18, be provided with logistics outlet 21 on all inner ring dividing plates of described cylindrical partition 18, and at least one circle inner ring dividing plate is provided with a plurality of logistics outlets 21, and adjacent fluid channels 15 is communicated with by logistics outlet 21.
The quench mixer that the utility model provides is owing to surround runner 15 by multi-turn cylindrical partition 18, so runner 15 distributes ringwise, the length that can regulate runner by the number of turns of adjusting runner 15 makes and mixes logistics have the suitable time of staying in runner, to reach good mixed effect.In addition, because this quench mixer surrounds runner 15 by collecting board 13 and pre-distribution grid 14 jointly with cylindrical partition 18, so when the gas phase flow is big in mixing logistics, can increase the flow area area of runner by the width that increases runner, thereby just can satisfy instructions for use not needing to increase under the situation of runner height, so the quench mixer that the utility model provides can make full use of the space between collecting board 13 and the pre-distribution grid 14, and do not need to increase in addition the height of reactor, so the quench mixer that the utility model provides has advantage in the utilization of reactor inner space, help reducing the total height of reactor, reduce the manufacturing expense of reactor, freight and mounting cost.
Description of drawings
Fig. 1 is the structural representation of the quench mixer of prior art;
Fig. 2 is the structural representation of the quench mixer that provides of the utility model;
Fig. 3 is the structural representation of the quench mixer that provides of the utility model;
Fig. 4 is the structural representation of the quench mixer that provides of the utility model;
Fig. 5 is the structural representation of the quench mixer that provides of the utility model;
Fig. 6 is the structural representation of the quench mixer that provides of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 2, the quench mixer that the utility model provides comprises inlet 19, outlet 17 and runner 15, wherein, described runner 15 is annular tubular runner, this annular tubular runner 15 is surrounded by multi-turn cylindrical partition 18, the inner ring dividing plate 22 of cylindrical partition 18 surrounds inlet 19, described outlet 17 is arranged on the outmost turns dividing plate 20 of cylindrical partition 18, be provided with logistics outlet 21 on all inner ring dividing plates of described cylindrical partition 18, and at least one circle inner ring dividing plate is provided with a plurality of logistics outlets 21, and adjacent fluid channels 15 is communicated with by logistics outlet 21.
Described cylindrical partition 18 can be cylindrical shape, oval cylinder or rectangular tubular, and for convenience of installation and the layout of quench mixer in reactor, preferably, described cylindrical partition 18 is oval cylinder or rectangular tubular.When cylindrical partition 18 was rectangular tubular, the corner of cylindrical partition 18 adopted smooth arc transition.Cylindrical partition 18 be columnar quench mixer structure as shown in Figures 2 and 3, cylindrical partition 18 be rectangular tubular quench mixer structure as shown in Figure 4 and Figure 5.
The number of turns of described runner 15 can be enclosed for 2-8, and in order to simplify the structure of quench mixer, preferably, the number of turns of described runner 15 is the 2-4 circle.The total length of described runner 15 can be set as the case may be, as described the total length of runner 15 can be designed as reactor radial section girth 0.1-1.8 doubly.Different according to the size of reactor and logistics flux, the width of described runner 15 can be designed as the 30-400 millimeter, and the height of described runner 15 can be designed as the 50-300 millimeter.The shape of the lateral cross section of described runner 15 can have any shape, and is preferably rectangle or square.
Be provided with logistics outlet 21 on all inner ring dividing plates of described cylindrical partition 18, the logistics outlet 21 that is provided with on the inner ring dividing plate 22 of logistics by cylindrical partition 18 is from the 19 inner ring runners that enter runner 15 that enter the mouth, and each logistics of enclosing in the runner enters next circle runner by logistics outlet 21.Logistics exports 21 places in logistics and bumps earlier, shunting then, thus strengthened the mixing of logistics.In order to strengthen the mixing of logistics, preferably, logistics outlet 21 on every circle of described inner ring dividing plate is a plurality of, more preferably, logistics outlet 21 on every circle of described inner ring dividing plate is two, described two logistics outlet, 21 opposed distributions on dividing plate, more preferably, the line of two logistics outlets 21 on the same inner ring dividing plate is with vertical with the line of two logistics outlets 21 on the adjacent inner ring dividing plate of this circle dividing plate.Described inner ring dividing plate is meant the dividing plate except outmost turns dividing plate 20 of cylindrical partition 18.
Described outlet 17 can be the outlet of arbitrary form, as long as logistics can be drawn quench mixer, export 17 as described and can be opening, the number of described opening can be for a plurality of, and the width of described opening can be the 30-400 millimeter, as Fig. 2 and shown in Figure 4, preferably, described outlet 17 is two openings, the opposed distribution on dividing plate of described two openings, and the line of two openings is with vertical with the line of the logistics outlet 21 on the adjacent inner ring dividing plate of outmost turns dividing plate 20.As Fig. 3 and shown in Figure 5, flow out equably to be distributed to equably on the pre-distribution grid 14 in order to make logistics, preferably, described outlet 17 is a throttle orifice.Described throttle orifice can have any shape, as strip or circle.The perforated area of described throttle orifice can be the 300-3000 square millimeter, and the distance between the edge of described per two adjacent throttle orifices can be the 10-300 millimeter.Described outlet 17 can be provided with arbitrarily on outmost turns dividing plate 20, distributes around pre-distribution grid 14 in order to make logistics, preferably, described outlet 17 is a plurality of, and distribute around outmost turns dividing plate 20, more preferably, described outlet 17 evenly distributes around outmost turns dividing plate 20.
As Fig. 2 and shown in Figure 4,, logistics is evenly distributed on pre-distribution grid 14 in order to adjust from exporting the direction of 17 logistics that flow out, preferably, this quench mixer also comprises baffle plate 23, and described baffle plate 23 is arranged on the outside of outmost turns dividing plate 20, and relative with outlet 17.
The cylindrical partition 18 of described quench mixer and the thickness of baffle plate 23 do not need very thick, as long as it is just passable to bear the active force that pressure drop produced of quench mixer, the thickness of cylindrical partition 18 and baffle plate 23 can be the 4-20 millimeter as described.The material of described quench mixer is conventionally known to one of skill in the art, and quench mixer can adopt carbon steel, stainless steel, steel alloy or other alloy material to make as described.
Below, in conjunction with Fig. 6 the assembling of quench mixer in reactor that the utility model provides is described.The quench mixer that the utility model provides can be made with the part assembly of collecting board 13 and pre-distribution grid 14 is whole outside reactor 26, fits together in the inside of reactor 26 and other assembly of collecting board 13 and pre-distribution grid 14 then.Size at quench mixer is bigger, can't the situation of integral installation in reactor 26 under, quench mixer can be divided into a plurality of assemblies, fit together with collecting board 13 and pre-distribution grid 14 in that reactor 26 is inner then.When assembling, should make the inlet 19 of quench mixer aim at opening 16 on the collecting boaries 13, the cylindrical partition 18 and the baffle plate 23 of quench mixer are separately fixed on collecting board 13 and the pre-distribution grid 14, and cylindrical partition 18 is closely contacted with pre-distribution grid 14 with collecting board 13 with baffle plate 23.Described cylindrical partition 18 and baffle plate 23 can be variety of way known in the field with the connected mode of collecting board 13 and pre-distribution grid 14, connect as welding or bolt.
Below, the course of work of the quench mixer that the utility model provides is described in conjunction with Fig. 2 and Fig. 6.Logistics 27 enters quench mixer by the opening on the collecting board 13 16 the inlet 19 that mixes of the thermal response logistics that a last beds comes and additional cold medium, and flow into first lap runners 24 via two logistics outlets 21 that are provided with on the inner ring dividing plate 22, logistics 27 is divided into four plumes in first lap runner 24 moving, after head-on collision in twos, two logistics outlets 21 by first lap runner 24 enter the second circle runner 25 respectively, logistics 27 is divided into four plumes once more and moves in the second circle runner 25, after head-on collision in twos, flow out runner 15 via two outlets 17 respectively, and through after the baffle plate 23 adjustment directions, be distributed to equably on the pre-distribution grid 14, at last, flow out pre-distribution grid 14 by the sieve aperture on the pre-distribution grid 14 28.
The structure and the application of the quench mixer that provides of the utility model for convenience of explanation, the utility model has been expressed the structure of the collecting board that belongs to reactor inner member part and pre-distribution grid in the drawings, but the quench mixer that the utility model provides does not comprise collecting board and pre-distribution grid.
Claims (12)
1, a kind of quench mixer, this quench mixer comprises inlet (19), outlet (17) and runner (15), it is characterized in that, described runner (15) is annular tubular runner, this annular tubular runner (15) is surrounded by multi-turn cylindrical partition (18), the inner ring dividing plate (22) of cylindrical partition (18) surrounds inlet (19), described outlet (17) is arranged on the outmost turns dividing plate (20) of cylindrical partition (18), be provided with logistics outlet (21) on all inner ring dividing plates of described cylindrical partition (18), and at least one circle inner ring dividing plate is provided with a plurality of logistics outlets (21), and adjacent fluid channels (15) is communicated with by logistics outlet (21).
2, quench mixer according to claim 1 is characterized in that, described cylindrical partition (18) is oval cylinder or rectangular tubular.
3, quench mixer according to claim 1 is characterized in that, the number of turns of described runner (15) is the 2-8 circle.
4, quench mixer according to claim 1 is characterized in that, the lateral cross section of described runner (15) be shaped as rectangle or square.
5, quench mixer according to claim 1 is characterized in that, the logistics outlet (21) on every circle of described inner ring dividing plate is a plurality of.
6, quench mixer according to claim 5 is characterized in that, the logistics outlet (21) on every circle of described inner ring dividing plate is two, described two logistics outlet (21) opposed distribution on dividing plate.
7, quench mixer according to claim 6 is characterized in that, the line of two the logistics outlets (21) on the same inner ring dividing plate is with vertical with the line of two the logistics outlets (21) on the adjacent inner ring dividing plate of this circle dividing plate.
8, quench mixer according to claim 6, it is characterized in that, described outlet (17) is two openings, the opposed distribution on dividing plate of described two openings, and the line of two openings is with vertical with the line of the outlet of the logistics on the adjacent inner ring dividing plate of outmost turns dividing plate (20) (21).
9, quench mixer according to claim 1 is characterized in that, described outlet (17) is a throttle orifice.
According to claim 1 or 9 described quench mixers, it is characterized in that 10, described outlet (17) is a plurality of, and around outmost turns dividing plate (20), distribute.
11, quench mixer according to claim 10 is characterized in that, described outlet (17) evenly distributes around outmost turns dividing plate (20).
According to claim 1 or 8 described quench mixers, it is characterized in that 12, this quench mixer also comprises baffle plate (23), described baffle plate (23) is arranged on the outside of outmost turns dividing plate (20), and relative with outlet (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201587184U CN200998661Y (en) | 2006-12-05 | 2006-12-05 | Fast-cooling agitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201587184U CN200998661Y (en) | 2006-12-05 | 2006-12-05 | Fast-cooling agitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200998661Y true CN200998661Y (en) | 2008-01-02 |
Family
ID=39013069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201587184U Expired - Lifetime CN200998661Y (en) | 2006-12-05 | 2006-12-05 | Fast-cooling agitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200998661Y (en) |
-
2006
- 2006-12-05 CN CNU2006201587184U patent/CN200998661Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: CHINA PETROLEUM + CHEMICAL CORPORATION RESEARCH INSTITUTE OF PETROLEUM ¬ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: China Petroleum Chemical Co Petrochemical Research Institute Number: 01 Page: The title page Volume: 24 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: China Petroleum Chemical Co Petrochemical Research Institute Number: 01 Volume: 24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ¬ TO: CHINA PETROLEUM + CHEMICAL CORPORATION RESEARCH INSTITUTE OF PETROLEUM ¬ |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080102 |
|
| EXPY | Termination of patent right or utility model |