CN117299066B - Tubular reactor for preparing dichloro sulfimide acid - Google Patents
Tubular reactor for preparing dichloro sulfimide acid Download PDFInfo
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- CN117299066B CN117299066B CN202311125673.5A CN202311125673A CN117299066B CN 117299066 B CN117299066 B CN 117299066B CN 202311125673 A CN202311125673 A CN 202311125673A CN 117299066 B CN117299066 B CN 117299066B
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- transverse
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- matching
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- 239000002253 acid Substances 0.000 title claims abstract description 23
- ATMIHASMQFJNLZ-UHFFFAOYSA-N dichloro(imino)-$l^{4}-sulfane Chemical compound ClS(Cl)=N ATMIHASMQFJNLZ-UHFFFAOYSA-N 0.000 title description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000000376 reactant Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000013011 mating Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical group ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 22
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 3
- -1 dichloro sulfinamic acid Chemical compound 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 4
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 3
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- WRJWRGBVPUUDLA-UHFFFAOYSA-N chlorosulfonyl isocyanate Chemical compound ClS(=O)(=O)N=C=O WRJWRGBVPUUDLA-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002466 imines Chemical class 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- KTQDYGVEEFGIIL-UHFFFAOYSA-N n-fluorosulfonylsulfamoyl fluoride Chemical compound FS(=O)(=O)NS(F)(=O)=O KTQDYGVEEFGIIL-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- QDWYPRSFEZRKDK-UHFFFAOYSA-M sodium;sulfamate Chemical compound [Na+].NS([O-])(=O)=O QDWYPRSFEZRKDK-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/242—Tubular reactors in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00092—Tubes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a tubular reactor for preparing dichloro sulfinamic acid, which relates to a reactor for preparing chemistry, comprising the following steps: the inner pipe part is provided with a plurality of linear cavity pipes, a plurality of arc cavity pipes and a flange seat; an outer tube portion including a lateral circulation tube; the steam circulation structure comprises a communication pipe and a transverse communication pipe, a plurality of transverse matching pieces are arranged below the transverse communication pipe and are inserted into all transverse circulation pipes, a plurality of longitudinal communication pipes which are vertically and fixedly connected on the transverse communication pipe and are flush with the transverse communication pipe are arranged below the longitudinal communication pipe and are inserted into the lateral circulation pipes, the shape and the structure of the transverse matching pieces are the same as those of the longitudinal matching pieces, the defects that the reaction is complex, three wastes are more, the equipment requirement degree is high, the yield is relatively low, and the energy consumption is high in the prior art are overcome, the continuous production of the dichlorosulfonylimide acid is achieved, the purity of the product can be ensured, and the yield of the product is improved.
Description
Technical Field
The invention relates to a reactor for chemical preparation, in particular to a tubular reactor for preparing dichloro sulfimide acid.
Background
The lithium bis (fluorosulfonyl) imide becomes a novel lithium salt with the fastest industrialization process due to excellent structural stability and electrochemical performance, the conductivity and the safety of the lithium ion battery can be improved, the high-low temperature performance of the lithium ion battery is obviously improved, and the bis (fluorosulfonyl) imide acid is used as an important intermediate for synthesizing the lithium bis (fluorosulfonyl) imide.
In the existing technology for preparing the dichloro sulfonyl imide acid, if sulfamic acid, chlorosulfonic acid and thionyl chloride are used as raw materials to prepare the dichloro sulfonyl imide acid, the following defects exist: the method has the advantages of more reaction raw materials, complex reaction, more by-product three wastes, complex process for separating and purifying the dichlorosulfonylimide acid, and against the development trend of energy conservation, cleanness and environmental protection of fine chemical engineering, the existing method for preparing the dichlorosulfonylimide acid by taking chlorosulfonyl isocyanate and chlorosulfonic acid as raw materials has the following defects: the reaction condition is more severe, the requirement on equipment is high, the industrial production is not facilitated, and the other method adopts sodium sulfamate or sulfamate to react at 150-200 ℃ to obtain imine disulfonate, and then the imine disulfonate is placed in thionyl chloride, sulfuric acid is added dropwise, and the reaction, filtration and rectification are carried out to obtain the product.
Aiming at the defects of complex reaction, more three wastes, high equipment requirement, relatively low yield and higher energy consumption in the prior art, a tubular reactor is often adopted for treatment, a process line can be shortened through the tubular reactor, the purposes of continuous production and production efficiency improvement are achieved, however, in the existing tubular reactor, a natural reaction mode is often adopted, or a mode of directly heating reactants is adopted, uneven heating in the whole reaction process is caused, the reaction cannot completely reach the reaction condition, and the purity and yield of the product are greatly influenced.
The scheme aims to provide the tubular reactor for preparing the dichloro sulfimide acid, which can achieve continuous production of the dichloro sulfimide acid, ensure the purity of the product and improve the yield of the product.
Disclosure of Invention
The invention provides a tubular reactor for preparing dichloro sulfimide acid, which can effectively solve the problems.
The invention is realized in the following way:
a tubular reactor for producing bischlorosulfonylimide acid, comprising:
the inner tube part is provided with a plurality of linear cavity tubes and a plurality of arc cavity tubes, the linear cavity tubes and the arc cavity tubes are alternately connected, and flange plate seats are welded at two ends of the linear cavity tubes and the arc cavity tubes;
the outer tube part comprises a transverse circulating tube nested on the outer peripheral surface of the linear cavity tube and a lateral circulating tube nested on the outer peripheral surface of the arc cavity tube;
the steam circulation structure comprises a communicating pipe connected with an external steam source, a transverse flow pipe communicated with the communicating pipe, a plurality of transverse matching pieces which are arranged below the transverse flow pipe and are inserted into all the transverse circulation pipes, a plurality of longitudinal flow pipes which are vertically and fixedly connected to the transverse flow pipe and are flush with the transverse flow pipe, a plurality of longitudinal matching pieces which are arranged below the longitudinal flow pipe and are inserted into the lateral circulation pipes, and the shape and the structure of the transverse matching pieces are the same as those of the longitudinal matching pieces.
As a further improvement, the transverse circulating pipe comprises two semicircular pipes which are combined to form a circular pipe, a hinge shaft connected to the bottoms of the semicircular pipes, two semicircular rings connected to the tops of the semicircular pipes, sealing rubber strips glued to the inner side walls of the semicircular pipes and the semicircular rings, and a circular ring structure formed by the two semicircular rings after the two semicircular pipes are attached to each other, wherein the length of the semicircular pipe is shorter than that of the linear cavity pipe.
As a further improvement, two sides of the transverse circulating pipe are clamped with a lateral mounting structure, the lateral mounting structure comprises a clamping power structure locked on the outer peripheral surface of the transverse circulating pipe, a movable plate fixedly connected with the clamping power structure and movably attached to the transverse circulating pipe, a sealing ring connected to the inner side of the movable plate and attached to the transverse circulating pipe, and a clamping seat welded on the movable plate and attached to the flange seat.
As a further improvement, the clamping power structure comprises an air guide disc clamped at the outer sides of the two semicircular pipes, an air guide column communicated with the air guide disc, and an air inlet cavity pipe connected with the air guide column and inserted into the movable disc.
As a further improvement, the flange plate seat on the side of the linear cavity tube comprises a connecting plate body, a mounting hole is formed in the connecting plate body, a clamping plate on the axial direction of the connecting plate body is welded, the clamping plate is positioned on the outer side of the clamping plate and is glued to a closing ring on the connecting plate body, the closing ring is arranged at intervals with the clamping plate, and the clamping seat is clamped in a gap between the closing ring and the clamping plate after being pushed out.
As a further improvement, the transverse matching piece comprises a column head fixedly connected below the transverse flow pipe, an outer matching cylinder attached to the outer side of the column head and welded below the transverse flow pipe, an inner matching cylinder vertically fixed to the bottom of the column head and arranged at intervals with the outer matching cylinder, the inner matching cylinder is inserted into a ring structure formed by two semicircular rings, and the outer matching cylinder is sleeved on the outer side of the ring structure formed by the two semicircular rings.
As a further improvement, an elastic steel sheet is fixed on the inner side of the inner matching cylinder, and is clamped and attached to the outer side of a circular ring structure formed by two semicircular rings after being ejected out and attached to the inner wall of the outer matching cylinder.
As a further improvement, the back mixing structure is arranged at the two axial ends of the inside of the linear cavity tube, the back mixing structure comprises a positioning plate arranged in the linear cavity tube, a hanging seat fixed in the positioning plate, a spring locked on the hanging seat, a pushing ball arranged on the spring and a clamping cylinder for supporting the pushing ball.
As a further improvement, an inclined plane is arranged on one side of the clamping cylinder, which faces the pushing ball, and the inclined plane is movably attached to the pushing ball.
As a further improvement, the positioning plate is provided with a plurality of holes, and when the pushing ball is pushed away, the reactant passes through the holes.
The beneficial effects of the invention are as follows:
in the preparation process of the dichlorsulfoimide acid, the problems that the reaction waste is more, the yield is low, the energy consumption is high are difficult to solve are solved, and the preparation process with high cost is always an industry pain point.
In fact, the straight-line cavity tube and the arc-shaped cavity tube are designed independently, although the interiors of the straight-line cavity tube and the arc-shaped cavity tube are in a communicated state, the transverse circulating tube and the lateral circulating tube are not communicated by means of the obstruction of the flange plate seat.
The invention sets the horizontal circulating pipe corresponding to the linear cavity pipe at the linear cavity pipe as two detachable semicircular pipes, and when the inner linear cavity pipe is leaked, the whole horizontal circulating pipe can be separated in a way of disassembling the semicircular pipe, so that the inner linear cavity pipe is directly overhauled.
In the above-mentioned setting process, although the horizontal circulation pipe is set in a detachable state, the whole of the horizontal circulation pipe is easy to leak with both end positions and the cooperation with the horizontal cooperation piece, thereby letting steam run off, and in this regard, on both end positions of the horizontal circulation pipe: the invention adopts the side mounting structure, namely, the side length of the transverse circulating pipe is prolonged through the movable disc and the clamping seat, the side mounting structure can be matched with the flange seat on the linear cavity pipe in the use state, and the side mounting structure adopts a retraction mode to directly take down from the whole transverse circulating pipe in the non-use state, and then the semicircular pipe in the transverse circulating pipe can be taken down after being separated;
and at the mating position of the transverse circulation tube and the transverse mating member: the structural characteristic of the transverse matching piece is directly utilized, the matching mode of the outer matching cylinder and the inner matching cylinder is adopted, the circular ring structure formed by the two semicircular pipes on the transverse circulating pipe is fixed in a double-layer mode, and then the clearance between the inner matching cylinder and the circular ring structure is wrapped by utilizing the wrapping effect of the elastic steel sheet under the laminating effect of the elastic steel sheet on the inner side of the inner matching cylinder, so that steam is prevented from flowing out.
In summary, on the basis that the horizontal circulating pipe can be detachably arranged, the horizontal circulating pipe is fixedly matched with the horizontal matching piece through the lateral mounting structure, so that the steam can be well circulated, the energy consumption is reduced, and the stable reaction can be promoted.
If the lateral mounting structure is directly matched with the conventional flange plate seat, the air tightness is difficult to ensure in the matching process, and in this way, the invention further proposes that the clamping plate and the closing ring are arranged on the flange plate seat, so that in the pushing-out process of the clamping plate on the lateral mounting structure, the clamping plate can be directly matched with the clamping plate in a clamping way, and meanwhile, the outside of the clamping plate is limited by the closing ring, so that the matching edge seam is sealed, the effect of tight matching is achieved, steam leakage is avoided, and no loss in energy circulation is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing the front view of a tubular reactor for producing bischlorosulfinamic acid according to the invention.
FIG. 2 is a schematic view of a side mounting structure of the present invention mated with a transverse circulation tube.
Fig. 3 is a schematic side view of a side mounting structure of the present invention.
Fig. 4 is a schematic left-view structure of a flange seat according to the present invention.
Fig. 5 is a schematic structural view of a transverse circulation tube according to the present invention.
Fig. 6 is a schematic structural view (disassembled state) of a transverse circulation tube according to the present invention.
Fig. 7 is a schematic front view of a steam cycle structure according to the present invention.
Fig. 8 is a schematic view of a transverse fitting of the present invention.
Fig. 9 is a schematic structural view of a back-mixed structure of the present invention.
Detailed Description
For the purpose of making embodiments of the present invention fall within the scope of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as referring to purposes, technical solutions and advantages of the present invention in any way. All other implementations, which can be derived by a person skilled in the art without making any inventive effort, show or imply relative importance or implicitly indicate the number of technical features indicated on the basis of the implementations in the invention. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 9, a tubular reactor for producing bischlorosulfonylimido acid, comprising: the inner tube part 10 is provided with a plurality of linear cavity tubes 11 and a plurality of arc cavity tubes 12, the linear cavity tubes 11 and the arc cavity tubes 12 are alternately connected, and flange plate seats 13 are welded at two ends of the linear cavity tubes 11 and the arc cavity tubes 12; an outer tube part 20, wherein the outer tube part 20 comprises a transverse circulating tube 21 nested on the outer peripheral surface of the linear cavity tube 11 and a lateral circulating tube 22 nested on the outer peripheral surface of the arc cavity tube 12; the steam circulation structure 30, the steam circulation structure 30 includes a communicating pipe 31 connected to an external steam source, a lateral flow pipe 32 connected to the communicating pipe 31, a plurality of lateral matching members 33 disposed below the lateral flow pipe 32 and inserted into all the lateral circulation pipes 21, a plurality of longitudinal flow pipes 34 vertically fixedly connected to the lateral flow pipe 32 and flush with the lateral flow pipe 32, and a plurality of longitudinal matching members disposed below the longitudinal flow pipes 34 and inserted into the lateral circulation pipes 22, wherein the shape and structure of the lateral matching members 33 are the same as those of the longitudinal matching members.
In the reaction process, chlorosulfonyl isocyanate and chlorosulfonic acid are pumped into a carbon steel tank mixer by a high-pressure plunger pump according to the mass volume ratio of 4 kg-4.5 kg:1L for preliminary mixing reaction, and then the mixture is pumped into a tubular reactor in the embodiment, and the mixture directly reacts in the tubular reactor which is arranged in a winding way, gradually passes through the alternately arranged linear cavities 11 and the arc-shaped cavities 12, and the linear cavities 11 and the arc-shaped cavities 12 are connected by a flange seat 13.
In this embodiment, in the preparation process of the bischlorosulfonyliminoacid, the problems of more reaction waste, low yield and high energy consumption are difficult to solve, the preparation process with high cost is always an industry pain point, in the invention, the continuous tubular reactor formed by the linear cavity tube 11 and the arc cavity tube 12 is adopted first, the reactants can be connected and reacted in the long-distance tubular reactor, the sleeve type structure of the transverse circulating tube 21 and the lateral circulating tube 22 is constructed outside the continuous tubular reactor, the steam circulating structure 30 is connected into the sleeve type structure, and the stable reaction temperature is kept in the continuous tubular reactor in a steam circulating mode, so that the reaction of the bischlorosulfonyliminoacid can be promoted under the condition of a simple reactor, the temperature is stable in the reaction process, and the product conversion rate is high.
In fact, the straight-line cavity tube 11 and the arc-shaped cavity tube 12 are designed separately, and although the interiors of the straight-line cavity tube 11 and the arc-shaped cavity tube 12 are in a communicated state, the transverse circulating tube 21 and the lateral circulating tube 22 are not communicated due to the obstruction of the flange plate seat 13, and in this way, the invention further provides a mode of arranging the steam circulating structure 30 into the transverse circulating tube 32 and the longitudinal circulating tube 34, so that the transverse circulating tube 32 and the longitudinal circulating tube 34 are respectively connected to the transverse circulating tube 21 and the lateral circulating tube 22 through the transverse matching piece 33 and the longitudinal matching piece in an inserting manner, and separate steam heat circulation is respectively carried out on the transverse circulating tube 21 and the lateral circulating tube 22, thereby ensuring that each position in the continuous tubular reactor is in a constant-temperature state, and the reaction can be continuously carried out.
The steam sleeve is added to promote the whole reaction, but the pipeline of the inner pipe 10 is also isolated from the external environment, once the inner pipe 10 is leaked, the inner pipe 10 is difficult to overhaul, workers are difficult to directly cross the outer pipe 20 and the steam circulation structure 30 to test the inner pipe 10, the maintenance difficulty is improved, compared with the maintenance difficulty, the maintenance difficulty of the linear cavity pipe 11 positioned at the inner side of the whole continuous pipe reactor is larger, the refilling of the narrow space is very difficult even after the drilling maintenance, the transverse circulating pipe 21 comprises two semicircular pipes 211 which are combined to form a circular pipe, the hinge shaft 212 connected at the bottom of the semicircular pipe 211 is connected with two semicircular rings 213 at the top of the semicircular pipe 211, the sealing rubber strips 214 glued at the inner side walls of the semicircular pipe 211 and the semicircular rings 213 are adhered to form a circular ring structure, the length of the semicircular pipe 211 is shorter than that of the linear cavity pipe 11, the transverse circulating pipe 21 corresponding to the linear cavity pipe 11 is arranged at the linear cavity pipe 11, and can be detached to the inner side of the semicircular pipe 11 in order to realize the sealing rubber strips, and the sealing rubber strips can be detached at the inner side of the semicircular pipe 11, so that the sealing rubber strips can be detached at the inner side of the semicircular pipe 11.
In the above-described setting process, although the lateral circulation pipe 21 is set in a detachable state, the entire one and both end positions thereof and the engagement with the lateral engagement member 33 are liable to leak, thereby letting the steam run off, and for this, the lateral circulation pipe 21 is provided at both end positions thereof: a lateral mounting structure 40 is clamped at two sides of the transverse circulating pipe 21, the lateral mounting structure 40 comprises a clamping power structure 41 locked on the outer peripheral surface of the transverse circulating pipe 21, a movable disc 42 fixedly connected with the clamping power structure 41 and movably attached to the transverse circulating pipe 21, a sealing ring connected to the inner side of the movable disc 42 and attached to the transverse circulating pipe 21, a clamping seat 43 welded on the movable disc 42 and attached to the flange seat 13, a lateral mounting structure 40 is adopted, namely, the lateral mounting structure 40 and the clamping seat 43 extend the length of the transverse circulating pipe 21 in the lateral direction, in a use state, the lateral mounting structure 40 can be matched with a flange seat 13 on a linear cavity tube 11, in a non-use state, the lateral mounting structure 40 adopts a retraction mode, the semicircular tube 211 in the transverse circulating pipe 21 is separated and can be taken off, in the embodiment, preferably, the power structure 41 comprises air guide discs 411 clamped on the outer sides of the two semicircular tubes 211, the air guide discs 412 are clamped on the outer sides of the movable disc 42, the air guide discs 412 are connected with the clamping seat 43 through the movable disc 412, and the air guide columns are also connected to the air guide columns 411 through the air guide columns and the air guide columns 413 in the outer side of the movable disc 43, and the air guide columns are connected to the air guide columns of the air guide columns 411 through the movable disc 411;
and at the mating position of the transverse circulation tube 21 with the transverse mating member 33, in particular: the transverse matching piece 33 comprises a column head 331 fixedly connected below the transverse flow pipe 32, an outer matching cylinder 332 attached to the outer side of the column head 331 and welded below the transverse flow pipe 32 is vertically fixed to the bottom of the column head 331 and an inner matching cylinder 333 arranged at intervals with the outer matching cylinder 332, the inner matching cylinder 333 is inserted into two annular structures formed by the semicircular rings 213, the outer matching cylinder 332 is sleeved on the outer sides of the annular structures formed by the semicircular rings 213, the structural characteristics of the transverse matching piece 33 are directly utilized, the two annular structures formed by the semicircular rings 333 are firstly fixed in a double-layer manner by adopting the matching mode of the outer matching cylinder 332 and the inner matching cylinder 333, further, in the embodiment, the inner sides of the inner matching cylinder 333 are fixedly provided with an elastic steel sheet 334, the elastic steel sheet 334 is ejected and then attached to the outer sides of the annular structures formed by the semicircular rings 213, the inner walls of the outer matching cylinder 332 are attached to the inner sides of the annular structures by the elastic steel sheet 334, the elastic steel sheet 334 on the inner sides of the inner matching cylinder 333 are directly utilized, and the inner sides of the annular structures can be completely wrapped by the elastic steel sheet 334, and the outer sides of the inner ring structures can be completely wrapped by the elastic steel sheet structure, and the outer ring structures can be completely wrapped by the outer ring structures, and the outer ring structures can be completely wrapped by the elastic steel structures, and the elastic steel sheet structure can be completely wrapped by the outer the elastic steel structure, and the elastic steel sheet structure can be completely and the elastic steel sheet structure can be completely and the elastic steel sheet structure.
In summary, on the basis that the transverse circulating pipe 21 is detachably arranged, the lateral mounting structure 40 and the transverse matching piece 33 are matched and fixed, so that the steam can ensure good circulation, the energy consumption is reduced, and the stable reaction can be promoted.
If the lateral mounting structure 40 is directly matched with the conventional flange seat 13, air tightness is difficult to ensure in the matching process, for this, the back mixing structure 14 is mounted at both axial ends of the inside of the linear cavity tube 11, the back mixing structure 14 comprises a positioning plate 141 mounted in the linear cavity tube 11, a hanging seat 142 fixed in the positioning plate 141, a spring 143 locked on the hanging seat 142, a pushing ball 144 mounted on the spring 143, a clamping cylinder 145 supporting the pushing ball 144, and a clamping disc 133 and a closing ring 134 are arranged on the flange seat 13, so that in the pushing process of the clamping seat 43 on the lateral mounting structure 40, the clamping disc 133 is directly matched with the clamping disc, and meanwhile, the outside of the clamping disc is restrained by the closing ring 134, so that the matching edge is sealed, the effect of tight matching is achieved, the steam is avoided, and the energy circulation is not lost.
It should be emphasized that the direction of movement of the thrust ball 144 is always toward the end of the reactant so that back mixing is avoided rather than impeding.
In addition, in order to make the pushing ball 144 easier to be pushed up when being pushed by the reactant, the obstruction of the pushing ball to the reactant is reduced, an inclined plane is arranged on one side of the clamping cylinder 145, which faces the pushing ball 144, and the inclined plane is movably attached to the pushing ball 144, so that the pushing ball 144 can be facilitated to find a new blocking position again after being reset.
In order to facilitate the reactant to move continuously to the rear end, the positioning plate 141 is provided with a plurality of holes 146, and when the pushing ball 144 is pushed away, the reactant passes through the holes 146.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A tubular reactor for producing bischlorosulfinamic acid, comprising:
the inner tube part (10), the inner tube part (10) is provided with a plurality of linear cavity tubes (11) and a plurality of arc cavity tubes (12), the linear cavity tubes (11) and the arc cavity tubes (12) are alternately connected and arranged, and flange plate seats (13) are welded at two ends of the linear cavity tubes (11) and the arc cavity tubes (12);
an outer tube part (20), wherein the outer tube part (20) comprises a transverse circulating tube (21) nested on the outer peripheral surface of the linear cavity tube (11) and a lateral circulating tube (22) nested on the outer peripheral surface of the arc cavity tube (12);
the steam circulation structure (30), the steam circulation structure (30) comprises a communicating pipe (31) connected with an external steam source, a transverse flow pipe (32) communicated with the communicating pipe (31), a plurality of transverse matching pieces (33) arranged below the transverse flow pipe (32) and inserted into all the transverse circulation pipes (21), a plurality of longitudinal flow pipes (34) vertically fixedly connected to the transverse flow pipe (32) and flush with the transverse flow pipe (32), and a plurality of longitudinal matching pieces arranged below the longitudinal flow pipes (34) and inserted into the lateral circulation pipes (22), wherein the transverse matching pieces (33) have the same shape and structure as the longitudinal matching pieces;
the transverse circulating pipe (21) comprises two semicircular pipes (211) which are combined to form a circular pipe, a hinge shaft (212) connected to the bottom of the semicircular pipes (211), two semicircular rings (213) connected to the tops of the two semicircular pipes (211), sealing rubber strips (214) glued to the inner side walls of the semicircular pipes (211) and the semicircular rings (213), and the two semicircular rings (213) form a circular ring structure after the two semicircular pipes (211) are attached, wherein the length of the semicircular pipes (211) is shorter than that of the linear cavity pipe (11);
a lateral mounting structure (40) is clamped at two sides of the transverse circulating pipe (21), the lateral mounting structure (40) comprises a clamping power structure (41) locked on the outer peripheral surface of the transverse circulating pipe (21), a movable disc (42) fixedly connected with the clamping power structure (41) and movably attached to the transverse circulating pipe (21), a sealing ring connected to the inner side of the movable disc (42) and attached to the transverse circulating pipe (21), and a clamping seat (43) welded on the movable disc (42) and attached to the flange seat (13);
the transverse matching piece (33) comprises a column head (331) fixedly connected below the transverse flow pipe (32), an outer matching cylinder (332) attached to the outer side of the column head (331) and welded below the transverse flow pipe (32), an inner matching cylinder (333) vertically fixed to the bottom of the column head (331) and arranged at intervals with the outer matching cylinder (332), the inner matching cylinder (333) is inserted into a circular ring structure formed by two semicircular rings (213), and the outer matching cylinder (332) is sleeved on the outer side of the circular ring structure formed by the two semicircular rings (213).
2. The tubular reactor for producing bischlorosulfonylimide acid according to claim 1, wherein the clamping power structure (41) comprises an air guiding disc (411) clamped outside the two semicircular tubes (211), an air guiding column (412) communicated with the air guiding disc (411), and an air inlet cavity tube (413) connected with the air guiding column (412) and inserted into the movable disc (42).
3. The tubular reactor for preparing the bischlorosulfinic acid according to claim 1, wherein the flange seat (13) on the side of the linear cavity tube (11) comprises a connecting disc body (131), a mounting hole (132) formed on the connecting disc body (131), a clamping disc (133) welded on the axial direction of the connecting disc body (131), a closing ring (134) positioned on the outer side of the clamping disc (133) and glued on the connecting disc body (131), the closing ring (134) and the clamping disc (133) are arranged at intervals, and the clamping seat (43) is clamped in a gap between the closing ring (134) and the clamping disc (133) after being pushed out.
4. The tubular reactor for producing bis-chlorosulfonyl acid according to claim 1, wherein an elastic steel sheet (334) is fixed on the inner side of the inner mating cylinder (333), and the elastic steel sheet (334) is tightly clamped and attached to the outer side of a circular ring structure formed by the two semicircular rings (213) and attached to the inner wall of the outer mating cylinder (332) after being ejected.
5. A tubular reactor for the preparation of bischlorosulfonylimide acid according to claim 1, characterized in that, a back mixing structure (14) is installed at both axial ends of the inside of the straight lumen (11), the back mixing structure (14) comprises a positioning plate (141) installed in the straight lumen (11), a hanging seat (142) fixed in the positioning plate (141), a spring (143) locked on the hanging seat (142), a pushing ball (144) installed on the spring (143), and a clamping cylinder (145) for supporting the pushing ball (144).
6. The tubular reactor for producing bischlorosulfonylimide acid according to claim 5, wherein a side of the holding cylinder (145) facing the pushing ball (144) is provided with an inclined surface, and the inclined surface is movably attached to the pushing ball (144).
7. The tubular reactor for producing bis-chlorosulfonyl acid according to claim 5, wherein the positioning plate (141) is provided with a plurality of holes (146), and the reactant passes through the holes (146) when the pushing ball (144) is pushed open.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311125673.5A CN117299066B (en) | 2023-09-01 | 2023-09-01 | Tubular reactor for preparing dichloro sulfimide acid |
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