CN215538629U - Chlorine blowing device for adjacent chlorine product - Google Patents
Chlorine blowing device for adjacent chlorine product Download PDFInfo
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- CN215538629U CN215538629U CN202121070427.0U CN202121070427U CN215538629U CN 215538629 U CN215538629 U CN 215538629U CN 202121070427 U CN202121070427 U CN 202121070427U CN 215538629 U CN215538629 U CN 215538629U
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- Prior art keywords
- chlorine
- blowing
- area
- falling film
- tube
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- 239000000460 chlorine Substances 0.000 title claims abstract description 88
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 88
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000007664 blowing Methods 0.000 title claims abstract description 77
- 125000001309 chloro group Chemical group Cl* 0.000 title description 10
- 239000011552 falling film Substances 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000005187 foaming Methods 0.000 claims abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 26
- 239000007789 gas Substances 0.000 abstract description 24
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 23
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 23
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 239000006260 foam Substances 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 16
- 229910001873 dinitrogen Inorganic materials 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 239000010408 film Substances 0.000 description 6
- NPDACUSDTOMAMK-UHFFFAOYSA-N 4-Chlorotoluene Chemical compound CC1=CC=C(Cl)C=C1 NPDACUSDTOMAMK-UHFFFAOYSA-N 0.000 description 4
- IBSQPLPBRSHTTG-UHFFFAOYSA-N 1-chloro-2-methylbenzene Chemical compound CC1=CC=CC=C1Cl IBSQPLPBRSHTTG-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- BASMANVIUSSIIM-UHFFFAOYSA-N 1-chloro-2-(chloromethyl)benzene Chemical compound ClCC1=CC=CC=C1Cl BASMANVIUSSIIM-UHFFFAOYSA-N 0.000 description 1
- JQZAEUFPPSRDOP-UHFFFAOYSA-N 1-chloro-4-(chloromethyl)benzene Chemical compound ClCC1=CC=C(Cl)C=C1 JQZAEUFPPSRDOP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical group ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本实用新型涉及化工反应装置技术领域，提出了一种邻对氯产品的吹氯器，包括吹氯腔，吹氯腔具有进液口和排液口，吹氯腔还具有进气口和出气口，还包括第一管板和第二管板，均设置在吹氯腔内，将吹氯腔从上到下依次分为除沫区、吹气区和成品区，进液口和出气口均位于除沫区，进气口位于吹气区，降膜管设置在第一管板和第二管板上，顶端具有降膜头，降膜管顶端位于除沫区，中间穿过吹气区，底端具有出液口，出液口通向成品区，降膜管还具有倾斜设置的通孔，通孔将降膜管内部与吹气区连通。通过上述技术方案，解决了相关技术中产生的氯化氢尾气处理不当，造成下游设备受氯化氢腐蚀，不仅寿命减少，还会增加下游产品的反应难度的问题。
The utility model relates to the technical field of chemical reaction devices, and provides a chlorine blower for adjacent-to-chlorine products, which comprises a chlorine blowing cavity, the chlorine blowing cavity has a liquid inlet and a liquid discharge port, and the chlorine blowing cavity also has an air inlet and an outlet. The air port also includes the first tube sheet and the second tube sheet, all of which are arranged in the chlorine blowing chamber, and the chlorine blowing chamber is divided into a de-foaming area, an air blowing area and a finished product area from top to bottom, a liquid inlet and an air outlet. Both are located in the defoaming area, the air inlet is located in the blowing area, the falling film tube is arranged on the first tube sheet and the second tube sheet, the top has a falling film head, the top of the falling film tube is located in the foam removing area, and the middle passes through the blowing air. The bottom end has a liquid outlet, the liquid outlet leads to the finished product area, and the falling film tube also has through holes arranged obliquely, and the through holes connect the inside of the falling film tube with the blowing area. The above technical solution solves the problem that the hydrogen chloride tail gas generated in the related art is improperly treated, causing the downstream equipment to be corroded by hydrogen chloride, which not only reduces the service life, but also increases the reaction difficulty of the downstream products.
Description
Technical Field
The utility model relates to the technical field of chemical reaction devices, in particular to a chlorine blowing device for an adjacent-pair chlorine product.
Background
In recent years, various novel intermediates such as medicines, pesticides, dyes and the like are used as starting materials, the intermediates show bright development prospects, the markets at home and abroad are good, and many of the intermediates become hotspot development products.
At present, the industrial production at home and abroad mainly adopts toluene liquid phase chlorination reaction to produce o-chlorotoluene and p-chlorotoluene, and the o-chlorotoluene chlorination catalysis method is the most common industrial production method of o-chlorobenzyl chloride and p-chlorobenzyl chloride at present. The four products are all obtained by chlorination of chlorine, hydrogen chloride tail gas is generated in the reaction process, most of hydrogen chloride enters a tail gas absorption system and is absorbed by water to be used as hydrochloric acid, but trace hydrogen chloride can be dissolved or dissociated in the products, and the products enter a storage system and downstream products, so that the corrosion of the storage equipment by the hydrogen chloride is caused, the corrosion service life of the downstream reaction equipment is reduced, hydrogen chloride impurities are introduced into the downstream products, the purity of the products is reduced, and the reaction difficulty of the downstream products is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a chlorine blowing device for adjacent chlorine products, which solves the problems that downstream equipment is corroded by hydrogen chloride due to improper treatment of hydrogen chloride tail gas generated in the related technology, the service life is shortened, and the reaction difficulty of the downstream products is increased.
The technical scheme of the utility model is as follows:
the utility model provides an adjacent chlorine ware that blows to chlorine product, is including blowing chlorine chamber, it has inlet and leakage fluid dram to blow chlorine chamber, it still has air inlet and gas outlet to blow chlorine chamber, the air inlet is used for blowing in nitrogen gas, still includes
A first tube plate arranged in the chlorine blowing cavity,
the second tube plate is arranged in the chlorine blowing cavity, the chlorine blowing cavity is sequentially divided into a defoaming area, an air blowing area and a finished product area from top to bottom by the second tube plate and the first tube plate, the liquid inlet and the air outlet are both positioned in the defoaming area, the air inlet is positioned in the air blowing area, the liquid outlet is positioned at the lowest part of the finished product area,
falling the membrane pipe, vertical setting is in first tube sheet with on the second tube sheet, the top has and falls the membrane head, falling the membrane pipe top is located remove the foam district, the centre is passed blow the gas district, the bottom has the liquid outlet, the liquid outlet accesss to the finished product district, still have the through-hole that the slope set up on the falling membrane pipe wall, the incline direction orientation fall the membrane head, the through-hole is located blow the gas district, will falling the membrane intraduct with blow the district intercommunication.
As a further technical scheme, the diameter of the through hole is 4-7 mm, and an included angle between the through hole and the inner wall of the falling film tube is 45 degrees.
As a further technical scheme, the film falling head is in a sawtooth shape, and the height of the film falling head is lower than the liquid inlet.
As a further technical proposal, the method also comprises
A baffle plate arranged on the inner wall of the chlorine blowing cavity,
the demister is arranged on the inner wall of the chlorine blowing cavity, the baffle plate and the demister are both positioned in the defoaming area, and the air outlet, the demister and the baffle plate are sequentially arranged from high to low.
As a further technical solution, the baffle comprises
A transverse plate horizontally arranged on the inner wall of the chlorine blowing cavity, a gap is arranged between the transverse plate and the inner wall of the chlorine blowing cavity,
the inclined plate is obliquely arranged on the inner wall of the chlorine blowing cavity and is positioned below the transverse plate.
As a further technical scheme, a plurality of through holes are arranged in parallel.
As a further technical scheme, the second tube plate is also provided with a return port, and the return port is communicated with the blowing area and the finished product area.
The working principle and the beneficial effects of the utility model are as follows:
according to the utility model, when the o-chlorotoluene and the p-chlorotoluene are produced, the hydrogen chloride is generated, once the tail gas is improperly treated, the downstream equipment is corroded by the hydrogen chloride, the service life is reduced, the reaction difficulty of downstream products is increased, and in order to solve the problem of hydrogen chloride tail gas treatment, a more reasonable chlorine blower is arranged, and the main principle is that the hydrogen chloride entrained in the products is better removed by utilizing the reverse cross flow of nitrogen and materials in a falling film pipe and a larger contact area.
Specifically, a first tube plate and a second tube plate are arranged in the chlorine blowing cavity, and the first tube plate and the second tube plate divide the chlorine blowing cavity into a defoaming area, an air blowing area and a finished product area from top to bottom. The adjacent chlorine product is through the transfer jar body, beats out through the knockout pump, after liquid flow meter and liquid flow valve in proper order, lets in the defoaming district that blows the chlorine chamber from the inlet, and nitrogen gas is discharged from nitrogen buffer tank simultaneously, after gas flow meter, gas control valve in proper order, blows in the district that blows of blowing the chlorine chamber from the air inlet. The falling film tube is fixed on the first tube plate and the second tube plate, the top falling film head of the falling film tube is positioned in a defoaming area, the middle section of the falling film tube is positioned in a blowing area, a lower liquid outlet is communicated with a finished product area, adjacent and opposite chlorine products with hydrogen chloride impurities coming from a liquid inlet are accumulated in the defoaming area until overflowing from the outside of the falling film head to enter the falling film tube, the materials form a very thin film in the falling film tube due to the action of the falling film head and flow downwards under the action of gravity, after the nitrogen enters the blowing area of a chlorine blowing cavity, the nitrogen enters the falling film tube from through holes of the falling film tube, the nitrogen is obliquely arranged upwards due to the fact that the through holes are smaller than air, after the nitrogen enters the falling film tube through the through holes, the nitrogen rotates clockwise and spirally upwards along the inner wall of the falling film tube, the nitrogen and the material reversely and the material flow in the falling film tube in a cross mode, the contact area of gas and liquid is increased, and all hydrogen chloride in the products is blown. This structure can reduce equipment and receive the hydrogen chloride corruption, can also increase the purity of low reaches product, and whole chlorine device that blows consumes tolerance is little, has guaranteed that environmental protection production can also reduce the running cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
figure 2 is a schematic view of a falling film tube arrangement according to the present invention;
FIG. 3 is a schematic view of a through hole structure on the falling film tube according to the present invention;
in the figure: 1. chlorine blowing cavity, 2, liquid inlet, 3, liquid discharge port, 4, air inlet, 5, gas outlet, 6, first tube sheet, 7, second tube sheet, 8, defoaming area, 9, gas blowing area, 10, finished product area, 11, falling film tube, 12, falling film head, 13, through hole, 14, baffle plate, 15, defoaming device, 16, transverse plate, 17, inclined plate, 18, reflux port, 19 and liquid outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1 to 3, the present embodiment proposes
The utility model provides an adjacent chlorine ware that blows to chlorine product, including blowing chlorine chamber 1, blow chlorine chamber 1 and have inlet 2 and leakage fluid dram 3, blow chlorine chamber 1 and still have air inlet 4 and gas outlet 5, air inlet 4 is used for blowing in nitrogen gas, still includes
A first tube plate 6 arranged in the chlorine blowing cavity 1,
a second tube plate 7 arranged in the chlorine blowing cavity 1, the chlorine blowing cavity 1 is sequentially divided into a defoaming area 8, an air blowing area 9 and a finished product area 10 from top to bottom by the second tube plate 7 and the first tube plate 6, the liquid inlet 2 and the air outlet 5 are both positioned in the defoaming area 8, the air inlet 4 is positioned in the air blowing area 9, the liquid outlet 3 is positioned at the lowest part of the finished product area 10,
When production adjacent chlorotoluene and parachlorotoluene, can produce hydrogen chloride, in case the tail gas is handled improperly, cause low reaches equipment to receive the hydrogen chloride corruption, not only the life-span reduces, still can increase the reaction degree of difficulty of low reaches product, in this embodiment, in order to solve the problem that hydrogen chloride tail gas was handled, through setting up a more reasonable chlorine ware that blows, main principle is that utilize nitrogen gas and material reverse cross flow in falling liquid film pipe, area of contact is bigger, realize better getting rid of the hydrogen chloride that smugglies secretly in the product.
Specifically, a first tube plate 6 and a second tube plate 7 are arranged in the chlorine blowing cavity 1, and the first tube plate 6 and the second tube plate 7 divide the chlorine blowing cavity 1 into a defoaming area 8, an air blowing area 9 and a finished product area 10 from top to bottom. The adjacent chlorine product is through the transfer jar body, beats out through the pump of beating the material, after liquid flowmeter and liquid flow valve in proper order, lets in the defoaming district 8 that blows chlorine chamber 1 from inlet 2, and nitrogen gas is discharged from the nitrogen buffer tank simultaneously, after gas flowmeter, gas control valve in proper order, blows in the district 9 of blowing that blows chlorine chamber 1 from air inlet 4. The falling film tube is fixed on the first tube plate 6 and the second tube plate 7, the top end of the falling film tube is provided with a falling film head 12 positioned in a defoaming area 8, the middle section of the falling film tube is positioned in a blowing area 9, a lower liquid outlet 19 is communicated with a finished product area 10, adjacent chlorine products with hydrogen chloride impurities coming from a liquid inlet 2 are accumulated in the defoaming area 8 until the adjacent chlorine products overflow from the falling film head 12 and flow into the falling film tube, the materials form a very thin film in the falling film tube due to the action of the falling film head 12 and flow downwards under the action of gravity, after the nitrogen enters the blowing area 9 of the chlorine blowing cavity 1, the nitrogen enters the falling film tube from a through hole 13 of the falling film tube, because the through hole 13 is arranged obliquely upwards and the density of the nitrogen is less than that of air, the nitrogen rotates clockwise and spirally upwards along the inner wall of the falling film tube, the nitrogen and the materials reversely and crossly flow in the falling film tube, so that the contact area of gas and liquid is increased, the hydrogen chloride in the product is completely blown off. This structure can reduce equipment and receive the hydrogen chloride corruption, can also increase the purity of low reaches product, and whole chlorine device that blows consumes tolerance is little, has guaranteed that environmental protection production can also reduce the running cost.
Further, the diameter of through-hole 13 is 4 ~ 7mm, and through-hole 13 is 45 with falling the inner wall contained angle of membrane tube 11.
In this embodiment, the diameter of the through hole 13 may be 4-7 mm, preferably 5 mm.
Further, the falling film head 12 is in a sawtooth shape, and the height of the falling film head 12 is lower than the liquid inlet 2.
In this embodiment, the sawtooth-shaped film falling head 12 is generally used for the falling film evaporation occasion with low requirements.
Further, also comprises
A baffle plate 14 arranged on the inner wall of the chlorine blowing cavity 1,
the demister 15 is arranged on the inner wall of the chlorine blowing cavity 1, the baffle plate 14 and the demister 15 are both positioned in the defoaming area 8, and the air outlet 5, the demister 15 and the baffle plate 14 are sequentially arranged from high to low.
In this embodiment, because nitrogen pressure is higher than the pressure that the product formed film flow in falling liquid film pipe slightly, cause the product to carry out falling film pipe 11 along with nitrogen gas secretly, in order to avoid nitrogen gas to carry the adjacent chlorine product and blow away, cause the waste, can retrieve through baffling board 14 and demister 15, concretely, the chlorine hydride and the nitrogen gas that carry the product reduce the gas velocity through baffling board 14 at first, make the big fog that smugglies secretly drip for the first time and subside, retrieve most product through demister 15 again, there are a small amount of products still can blow out from gas outlet 5 along with gas, follow-up condensing equipment that can also add realizes further the recovery.
Further, the baffle 14 comprises
A transverse plate 16 which is horizontally arranged on the inner wall of the chlorine blowing cavity 1, a gap is arranged between the transverse plate 16 and the inner wall of the chlorine blowing cavity 1,
the inclined plate 17 is obliquely arranged on the inner wall of the chlorine blowing cavity 1 and is positioned below the transverse plate 16.
In this embodiment, there are generally a plurality of swash plates 17, and the cross plate 16 and the swash plate 17 constitute a rotation path.
Furthermore, a plurality of through holes 13 are arranged in parallel with each other.
Furthermore, the second tube plate 7 is also provided with a return opening 18, and the return opening 18 is communicated with the blowing area 9 and the finished product area 10.
In this embodiment, in order to avoid falling the product in the membrane tube 11 and flow out from through-hole 13, the mistake is gone into and is blown gas district 9, is provided with backward flow mouth 18 bottom blowing district 9, can make this part product fall finished product district 10 smoothly, discharges through leakage fluid dram 3, and this backward flow mouth 18 can also make nitrogen gas pass through, and partial nitrogen gas can let in falling membrane tube 11 from the liquid outlet 19 adverse current of falling membrane tube 11.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121070427.0U CN215538629U (en) | 2021-05-19 | 2021-05-19 | Chlorine blowing device for adjacent chlorine product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121070427.0U CN215538629U (en) | 2021-05-19 | 2021-05-19 | Chlorine blowing device for adjacent chlorine product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215538629U true CN215538629U (en) | 2022-01-18 |
Family
ID=79862005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121070427.0U Active CN215538629U (en) | 2021-05-19 | 2021-05-19 | Chlorine blowing device for adjacent chlorine product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215538629U (en) |
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2021
- 2021-05-19 CN CN202121070427.0U patent/CN215538629U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 055550 dacaozhuang Industrial Park, Ningjin County, Xingtai City, Hebei Province Patentee after: Hebei Shenmao New Materials Technology Co.,Ltd. Country or region after: China Address before: 054000 Da Cao Zhuang Industrial Park, Ningjin County, Xingtai City, Hebei Province Patentee before: HEBEI SANCHUAN CHEMICAL Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |