CN108636152A - Mixer for propylene high-temperature chlorination reaction - Google Patents
Mixer for propylene high-temperature chlorination reaction Download PDFInfo
- Publication number
- CN108636152A CN108636152A CN201810522937.3A CN201810522937A CN108636152A CN 108636152 A CN108636152 A CN 108636152A CN 201810522937 A CN201810522937 A CN 201810522937A CN 108636152 A CN108636152 A CN 108636152A
- Authority
- CN
- China
- Prior art keywords
- taper pipe
- annular slab
- outer tube
- chlorination reaction
- temperature chlorination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 50
- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 36
- 230000000694 effects Effects 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000006227 byproduct Substances 0.000 abstract description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 15
- 229910052801 chlorine Inorganic materials 0.000 description 15
- 239000000460 chlorine Substances 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- OWXJKYNZGFSVRC-NSCUHMNNSA-N (e)-1-chloroprop-1-ene Chemical compound C\C=C\Cl OWXJKYNZGFSVRC-NSCUHMNNSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/27—Mixing by jetting components into a conduit for agitating its contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2204—Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of mixers for propylene high-temperature chlorination reaction, including the outer tube and inner tube being coaxially disposed, and the outer tube is pipe, is provided with air inlet pipe on outer tube, the both ends of outer tube are connected separately with first annular plate and the second annular slab；The centre bore of the second annular slab is inserted into the centre bore of the protruding first annular plate of input end of said inner tube, the outlet end of inner tube；Multiple through-holes are provided on second annular slab, that one end that the second annular slab is corresponded on outer tube is connected with first Taper Pipe, and the bigger diameter end of the first Taper Pipe is connect with outer tube.Play the role of mixing chamber by the way that the first Taper Pipe is arranged provided by the present invention for the mixer of propylene high-temperature chlorination reaction, first Taper Pipe channel is larger, what will not be generated in reaction process easily is blocked by by-product, extends the quantity-produced time, improves productivity effect.
Description
Technical field
The present invention relates to chemical equipment technical fields, more particularly to a kind of mixer for propylene high-temperature chlorination reaction.
Background technology
Propylene high-temperature chlorination reaction is to produce the common method of chloropropene, and the mixer of generally use venturi type is by propylene
It is mixed with chlorine.But in actual production process, propylene and the chlorine horse back after mixing at the trunnion of the mixer of venturi type
Just reaction takes place, and generates more by-product in reaction process, is commonly called as " knot carbon " or coking；Due to the channel sheet of trunnion
Body is thinner, and with the accumulation of knot carbon, the channel of trunnion, which is gradually blocked, to lead to not normally produce, it is therefore desirable to continually（Greatly
Cleaning in about two weeks is primary）The knot carbon accumulated at trunnion is cleared up, causes production to be often interrupted, reduces productivity effect.
As it can be seen that the prior art could be improved and improve.
Invention content
Place in view of above-mentioned deficiencies of the prior art, it is anti-for propylene high-temperature chlorination that the purpose of the present invention is to provide one kind
The mixer answered, it is intended to which the mixer for solving to be used for propylene high-temperature chlorination reaction in the prior art needs frequently to clear up the skill of knot carbon
Art problem.
In order to achieve the above object, this invention takes following technical schemes：
A kind of mixer for propylene high-temperature chlorination reaction, including the outer tube and inner tube that are coaxially disposed, the outer tube are circle
It manages, is provided with air inlet pipe on outer tube, the both ends of outer tube are connected separately with first annular plate and the second annular slab；Said inner tube into
The centre bore of the second annular slab is inserted into the centre bore of the protruding first annular plate in mouth end, the outlet end of inner tube；Second annular slab
On be provided with multiple through-holes, that one end of corresponding second annular slab is connected with first Taper Pipe on outer tube, the first Taper Pipe it is big
Diameter end is connect with outer tube.
In the mixer for propylene high-temperature chlorination reaction, the through-hole for being on the second annular slab is in concentric annular point
Cloth, the through-hole in each ring are circumferentially angularly distributed, each through-hole it is equal sized.
In the mixer for propylene high-temperature chlorination reaction, the outlet end of each through-hole is directed to the axis of inner tube
Line, the axis of each through-hole is equal with the angle of the axis of inner tube, the angular range of the axis of each through-hole and the axis of inner tube
It is 30 ° ~ 45 °.
In the mixer for propylene high-temperature chlorination reaction, the cross-sectional area sum of all through-holes is the second annular
2 times of the cross-sectional area of the centre bore of plate ~ 2.5 times.
In the mixer for propylene high-temperature chlorination reaction, said inner tube includes sequentially connected straight tube and second
Taper Pipe, the centre bore of the protruding first annular plate of straight tube；The miner diameter end of second Taper Pipe is connect with straight tube, the major diameter of the second Taper Pipe
The centre bore of the second annular slab and concordant with the outlet side of the second annular slab is inserted at end, and the diameter of the bigger diameter end of the second Taper Pipe is equal to
The diameter of the centre bore of second annular slab.
In the mixer for propylene high-temperature chlorination reaction, the range of taper of second Taper Pipe is（1∶3）~（1
∶4）.
In the mixer for propylene high-temperature chlorination reaction, the range of taper of the first Taper Pipe is（1∶4）~（1∶6）.
Advantageous effect：
The present invention provides a kind of mixers for propylene high-temperature chlorination reaction, compared with prior art, pass through the first cone of setting
Pipe plays the role of mixing chamber, therefore in structure there is no the trunnions that channel cross-sectional area is relatively thin；And the first Taper Pipe is logical
Road is larger, although also having knot carbon accumulation on its inner wall, will not be blocked easily, about 6 months even longer time
Cleaning is primary.It is of the present invention to be used for propylene high-temperature chlorination compared to the primary knot carbon of mixer cleaning in 2 weeks of existing venturi type
Cleaning frequency in the mixer of reaction is greatly reduced, and ensure that device continuous production, improves productivity effect.
Description of the drawings
Fig. 1 is the structural schematic diagram provided by the present invention for the mixer of propylene high-temperature chlorination reaction.
Fig. 2 is the partial enlarged view in the regions S in Fig. 1.
Fig. 3 is the front view of the second annular slab provided by the present invention in the mixer of propylene high-temperature chlorination reaction.
Specific implementation mode
The present invention provides a kind of mixer for propylene high-temperature chlorination reaction, to make the purpose of the present invention, technical solution
And effect is clearer, clear, the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should be appreciated that this
Place is described, and specific examples are only used to explain the present invention, is not intended to limit the present invention.
It please refers to Fig.1 to Fig.3, the present invention provides a kind of mixer for propylene high-temperature chlorination reaction.
The mixer for propylene high-temperature chlorination reaction includes the outer tube 1 being coaxially disposed and inner tube 2, the outer tube
1 is pipe, and air inlet pipe 10 is provided on outer tube 1, and the both ends of outer tube are connected separately with first annular plate 31 and the second annular slab 32；
The input end of said inner tube 2（The visual angles Fig. 1 are left end）The centre bore of protruding first annular plate 31（Do not observe in figure）,
The outlet end of inner tube 2（The visual angles Fig. 1 are right end）It is inserted into the centre bore 3201 of the second annular slab；It is provided on second annular slab 32 more
A through-hole 3202, that one end of corresponding second annular slab is connected with first Taper Pipe 4, the bigger diameter end of the first Taper Pipe 4 on outer tube 1
It is connect with outer tube.Outer tube and the first Taper Pipe are coaxial arrangement, and are generally connected between the two by flange 80 in order to dismount.On
It states outer tube, inner tube, first annular plate and the second annular slab and surrounds a cavity.
In actual use, chlorine enters from the input end of inner tube 1 and sprays to the first Taper Pipe from the centre bore of the second annular slab
In；Propylene（Gaseous state）To which above-mentioned air inlet pipe 10 enters the cavity between outer tube and inner tube, and by each on the second annular slab
A through-hole sprays in the first Taper Pipe.Since the first Taper Pipe is in gradually-reducing shape state to the direction of outlet end, propylene is to the axis side of Taper Pipe
High-temperature chlorination occurs immediately to be mixed with chlorine to movement.Certainly, in actual production, high-temperature chlorination can continue
Several seconds time, therefore the outlet end of the first Taper Pipe is connected with a segment pipe, mixed chlorine and propylene are in subsequent pipeline
In continue high-temperature chlorination.It is subsequently used for the pipeline of reaction not within protection scope of the present invention.
By above-mentioned analysis it is found that in the mixer for propylene high-temperature chlorination reaction, the first Taper Pipe plays mixed
The effect for closing room, realizes chlorine and propylene and is mixed in the first Taper Pipe.Since hybrid mode is not venturi type mixing,
There is no the relatively thin trunnions of channel cross-sectional area, on the contrary, the input end diameter of the first Taper Pipe is equal to the diameter of outer tube, and first
The outlet end diameter of Taper Pipe is also greater than the diameter at inner tube outlet end, and in other words, the channel of the first Taper Pipe is larger, although on its inner wall
Also knot carbon accumulation is had, but will not be blocked easily, even the longer time, just cleaning was primary within about 6 months.Compared to existing
Carbon is once tied in the mixer cleaning in 2 weeks of venturi type, clear in the mixer of the present invention for propylene high-temperature chlorination reaction
Reason frequency is greatly reduced, and ensure that device continuous production, improves productivity effect.
Preferably, in order to enable propylene equably sprays in the first Taper Pipe, the through-hole 3202 for being on the second annular slab 32 is in
Concentric annular is distributed, and the through-hole in each ring is circumferentially angularly distributed, each through-hole it is equal sized.Preferably, such as Fig. 3
It is shown, it is provided with through-hole altogether in a manner of inner ring, middle ring and outer shroud（Share 3 rings）Setting so that through-hole is on the second annular slab
Circumferentially it is evenly distributed.
As shown in Fig. 2, further, in order to enter in the first Taper Pipe propylene be oriented to, each through-hole goes out
Mouth end is directed to the axis 901 of inner tube, and the axis of each through-hole is equal with the included angle A of the axis of inner tube, the axis of each through-hole
With the included angle A of the axis of inner tube（Acute angle）Ranging from 30 ° ~ 45 °.That is, propylene after each through-hole by having to the first Taper Pipe
The trend of axis direction movement improves mixed effect to improve propylene and chlorine mixing machine meeting.
Further, the cross-sectional area sum of all through-holes 3202 is the cross-sectional area of the centre bore 3201 of the second annular slab
2 times ~ 2.5 times.When due to actual production, in propylene high-temperature chlorination reaction, the flow-rate ratio of propylene and chlorine is about 5: 1（That is,
The propylene for participating in reaction is excessive）, and the cross-sectional area sum of all through-holes is limited as the transversal of the centre bore of the second annular slab
2 times of area ~ 2.5 times so that the speed that propylene is sprayed from through-hole is 2.5 times of the speed that chlorine is sprayed from inner tube outlet end
~ 2 times, therefore, propylene have sufficiently large speed enter chlorine layer until the first Taper Pipe near axis so that chlorine and
Propylene is adequately mixed.
In addition, further, said inner tube 2 includes sequentially connected straight tube 21 and the second Taper Pipe 22, and straight tube is protruding
The centre bore of first annular plate；The miner diameter end of second Taper Pipe 22 is connect with straight tube 21, and the bigger diameter end of the second Taper Pipe 22 is inserted into second
The diameter of the centre bore 3201 of annular slab and concordant with the outlet side of the second annular slab, the bigger diameter end of the second Taper Pipe is equal to the second ring
The diameter of the centre bore of shape plate.By the way that the second Taper Pipe is arranged so that chlorine is from the outlet end of the second Taper Pipe（Corresponding second annular slab
Central hole）The certain angle for being in after ejection can improve contact of the chlorine with propylene in the first Taper Pipe to external diffusion
Chance improves mixability, that is, improves reaction effect.In general, above-mentioned straight tube is also pipe, the miner diameter end of the second Taper Pipe
Diameter is equal to the diameter of straight tube.
Preferably, the range of taper of second Taper Pipe 22 is（1∶3）~（1∶4）, the second Taper Pipe under the range of taper is
Can guarantee can spread after chlorine sprays in the first Taper Pipe, and the outlet end diameter for also avoiding the second Taper Pipe is excessive and leads to chlorine
The problems such as pressure is inadequate after ejection, speed reduces.
Preferably, the range of taper of the first Taper Pipe 4 is（1∶4）~（1∶6）.The first Taper Pipe in this way under range of taper can
Play the role of being oriented to propylene, the problem that the first Taper Pipe is long or outlet end is too small will not be caused.
In order to make it easy to understand, the production method of the mixer described briefly below for propylene high-temperature chlorination reaction（But it does not limit
In this）：（1）Make first annular plate, the second annular slab, outer tube, straight tube, the second Taper Pipe, the first Taper Pipe.（2）By straight tube and
Two Taper Pipes coaxially weld and obtain inner tube.（3）The bigger diameter end of second Taper Pipe is inserted into the centre bore of the second annular slab, to second
It is welded at the circumferential weld formed between the bigger diameter end of Taper Pipe and the second annular slab.（4）By one end of the second annular slab and outer tube
Welding.（5）By first annular sleeve-board simultaneously until the other end with outer tube offsets, by first annular plate and outer tube weldering on straight tube
It connects, will be welded at the circumferential weld formed between first annular plate and straight tube.（6）That one end of annular slab is corresponded in outer tube（Fig. 1
It show right end）Place's welded flange 80 is connected two pieces of flanges 80 by bolt in the bigger diameter end welded flange 80 of the first Taper Pipe
It connects, to realize the connection of outer tube and the first Taper Pipe.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the scope of protection of the present invention.
Claims (7)
1. a kind of mixer for propylene high-temperature chlorination reaction, which is characterized in that including the outer tube being coaxially disposed and inner tube,
The outer tube is pipe, is provided with air inlet pipe on outer tube, the both ends of outer tube are connected separately with first annular plate and the second annular slab；
The center of the second annular slab is inserted into the centre bore of the protruding first annular plate of input end of said inner tube, the outlet end of inner tube
Hole；Multiple through-holes are provided on second annular slab, that one end that the second annular slab is corresponded on outer tube is connected with first Taper Pipe,
The bigger diameter end of first Taper Pipe is connect with outer tube.
2. the mixer according to claim 1 for propylene high-temperature chlorination reaction, which is characterized in that on the second annular slab
The through-hole for being in is distributed in concentric annular, and the through-hole in each ring is circumferentially angularly distributed, each through-hole it is equal sized.
3. the mixer according to claim 2 for propylene high-temperature chlorination reaction, which is characterized in that each through-hole goes out
Mouthful end is directed to the axis of inner tube, and the axis of each through-hole is equal with the angle of the axis of inner tube, the axis of each through-hole with it is interior
The angular range of the axis of pipe is 30 ° ~ 45 °.
4. the mixer according to claim 3 for propylene high-temperature chlorination reaction, which is characterized in that the cross of all through-holes
The sum of sectional area is 2 times ~ 2.5 times of the cross-sectional area of the centre bore of the second annular slab.
5. the mixer according to claim 4 for propylene high-temperature chlorination reaction, which is characterized in that said inner tube includes
Sequentially connected straight tube and the second Taper Pipe, the centre bore of the protruding first annular plate of straight tube；The miner diameter end of second Taper Pipe with it is straight
Pipe connects, and the bigger diameter end of the second Taper Pipe is inserted into the centre bore of the second annular slab and concordant with the outlet side of the second annular slab, and second
The diameter of the bigger diameter end of Taper Pipe is equal to the diameter of the centre bore of the second annular slab.
6. the mixer according to claim 5 for propylene high-temperature chlorination reaction, which is characterized in that second Taper Pipe
Range of taper be（1∶3）~（1∶4）.
7. the mixer according to claim 1 for propylene high-temperature chlorination reaction, which is characterized in that the cone of the first Taper Pipe
Degree is ranging from（1∶4）~（1∶6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522937.3A CN108636152A (en) | 2018-05-28 | 2018-05-28 | Mixer for propylene high-temperature chlorination reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522937.3A CN108636152A (en) | 2018-05-28 | 2018-05-28 | Mixer for propylene high-temperature chlorination reaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108636152A true CN108636152A (en) | 2018-10-12 |
Family
ID=63758286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810522937.3A Pending CN108636152A (en) | 2018-05-28 | 2018-05-28 | Mixer for propylene high-temperature chlorination reaction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108636152A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448987A (en) * | 2019-09-03 | 2019-11-15 | 安徽徽天标准件制造有限公司 | A kind of antipollution plasma cutting machines dust-extraction unit of environmental protection |
| CN114100390A (en) * | 2021-12-21 | 2022-03-01 | 中冶焦耐(大连)工程技术有限公司 | Premixing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001187326A (en) * | 2000-01-05 | 2001-07-10 | Nomura Denshi Kogyo Kk | Device for mixing gas and water |
| CN1646212A (en) * | 2002-04-12 | 2005-07-27 | 日本碍子株式会社 | Carbonated water manufacturing device, water purifier with the device, and stationary water purifier |
| CN201346449Y (en) * | 2008-12-29 | 2009-11-18 | 河北盛华化工有限公司 | Polymerization kettle temperature raising gas and water mixer |
| CN202096906U (en) * | 2011-06-03 | 2012-01-04 | 大庆科美达采油成套设备有限公司 | Water jetting and air conveyance combination dispersing head |
-
2018
- 2018-05-28 CN CN201810522937.3A patent/CN108636152A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001187326A (en) * | 2000-01-05 | 2001-07-10 | Nomura Denshi Kogyo Kk | Device for mixing gas and water |
| CN1646212A (en) * | 2002-04-12 | 2005-07-27 | 日本碍子株式会社 | Carbonated water manufacturing device, water purifier with the device, and stationary water purifier |
| CN201346449Y (en) * | 2008-12-29 | 2009-11-18 | 河北盛华化工有限公司 | Polymerization kettle temperature raising gas and water mixer |
| CN202096906U (en) * | 2011-06-03 | 2012-01-04 | 大庆科美达采油成套设备有限公司 | Water jetting and air conveyance combination dispersing head |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448987A (en) * | 2019-09-03 | 2019-11-15 | 安徽徽天标准件制造有限公司 | A kind of antipollution plasma cutting machines dust-extraction unit of environmental protection |
| CN114100390A (en) * | 2021-12-21 | 2022-03-01 | 中冶焦耐(大连)工程技术有限公司 | Premixing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181012 |