Pipeline reaction device for chloroamine production

Abstract

The utility model relates to a pipeline reaction device for chloroamine production, which belongs to the technical field of pipeline reaction equipment and comprises a pipeline reactor, a mixing pipeline, a first raw material inlet pipe and a second raw material inlet pipe, a material spraying port is arranged on one side of the lower end of the second raw material inlet pipe, and a throttle pipe and a distribution mixing plate are arranged on the mixing pipeline on the right side of the material spraying port. The pipeline reactor comprises a plurality of horizontal reaction pipes arranged in the vertical direction, and the outer end of each horizontal reaction pipe is sleeved with a cooling jacket. According to the pipeline reactor, materials can be uniformly mixed in the mixing pipeline before entering the pipeline reactor, the subsequent reaction effect cannot be influenced, and the materials entering the first raw material inlet pipe can form vortex at the right end of the second raw material inlet pipe when encountering and bypassing the second raw material inlet pipe, so that the materials and the second raw material inlet pipe can be preliminarily mixed, and then the materials are throttled when passing through the throttle pipe; the liquid is in a turbulent flow state, so that material mixing is accelerated, and then the liquid impacts on the distribution mixing plate to be distributed and mixed again, and the mixing effect is improved.

Description

Technical Field

[0001] This utility model relates to a pipeline reaction device for the production of chloroamines, belonging to the technical field of pipeline reaction equipment. Background Technology

[0002] The production of chloroamines requires the use of pipeline reactors to mix two or more reactants, enabling a highly efficient and continuous reaction process and improving production efficiency. However, current pipeline reactors typically involve two reactants entering a pipeline mixer before mixing, resulting in uneven mixing and affecting the reaction effect. Furthermore, the serpentine arrangement of pipeline reactors makes manufacturing and installation cumbersome. Utility Model Content

[0003] This invention provides a pipeline reaction device for the production of chloroamines, which solves the problems existing in the background art.

[0004] This utility model relates to a pipeline reaction device for the production of chloroamine, including a pipeline reactor fixed on a support. The upper end of the pipeline reactor is connected to a mixing pipe via a connecting flange. A sealing plate is fixed to the outer end of the mixing pipe, and a first raw material inlet pipe coaxial with it is fixed to the sealing plate. A second raw material inlet pipe with its lower end extending into it is fixed to the top of the outer end of the mixing pipe. A spray nozzle is provided on the side of the lower end of the second raw material inlet pipe away from the first raw material inlet pipe. A throttling pipe and a distribution mixing plate are provided on the mixing pipe to the right of the spray nozzle. The pipeline reactor includes multiple horizontal reaction pipes arranged vertically. The ends of adjacent horizontal reaction pipes are connected by connecting arc pipes and the reactants are transported in a serpentine manner. The outer end of each horizontal reaction pipe is fitted with a cooling jacket. Connecting pipes are fixed to the outer walls of both ends of each cooling jacket. Adjacent cooling jackets are connected by connecting pipes and the cooling liquid is transported in a serpentine manner.

[0005] As a preferred option, both the second raw material inlet pipe and the first raw material inlet pipe are equipped with flow regulating valves and flow meters, which can accurately control the amount of raw material entering.

[0006] As a preferred option, the throttling pipe is a reducing pipe with a diameter greater than that of the right end. A support rod is fixed to the outside of the right end of the throttling pipe, and the other end of the support rod is fixed to the mixing pipe. This makes it convenient to fix and install the throttling pipe, and the throttling pipe is relatively stable.

[0007] As a preferred embodiment, the distribution mixing plate is a cone shape with a central convex shape pointing to the left. The distribution mixing plate is evenly provided with distribution through holes, and an L-shaped collection annular trough is fixed to the outer side of the distribution mixing plate. The outer side of the collection annular trough is fixed to the inner wall of the mixing pipe, which can distribute the liquid that hits the middle of the distribution mixing plate outward, making the distribution more uniform. It can also filter out large impurities in the liquid, which are then flushed into the collection annular trough for centralized collection, thus extending the cleaning cycle of impurities.

[0008] As a preferred option, the mixing pipeline has a two-section connected structure, with the two sections connected by a fixed flange. The throttling pipe is fixed on the left end of the mixing pipeline, and the distribution mixing plate is fixed on the right end of the mixing pipeline. This allows for easy disassembly and cleaning of the distribution mixing plate and the collection annular trough.

[0009] As a preferred embodiment, each cooling jacket is provided with a U-shaped fixing clamp at both ends. The two ends of the fixing clamp are connected to the fixing nut through the bracket. The bracket is provided with an embedded groove 1 corresponding to the cooling jacket. A rubber pad 1 is fixed in the embedded groove 1. An embedded groove 2 is provided on the inner side wall of the fixing clamp. A rubber pad 2 is fixed in the embedded groove 2. This facilitates the fixing of the cooling jacket and better protects the cooling jacket.

[0010] As a preferred embodiment, both ends of the cooling jacket are provided with shrink tube openings, and a welding layer is provided between the shrink tube openings and the horizontal reaction tube. The horizontal reaction tube corresponding to the welding layer is provided with an anti-detachment groove greater than a semi-circular arc. The welding layer is provided with an anti-detachment rib extending into the anti-detachment groove. The welding of the cooling jacket is more secure, the sealing effect is better, and the welding layer can be better prevented from falling off.

[0011] As a preferred embodiment, the cooling jacket has tapered fixing holes at both ends that mate with the connecting pipe. A second welding layer is provided between the connecting pipe and the cooling jacket. The inner end of the second welding layer extends into the inner end of the fixing hole. The lower side wall of the fixing hole has a second anti-detachment groove larger than a semi-circular arc. The second welding layer has a second anti-detachment rib extending into the second anti-detachment groove. The welding of the connecting pipe is more secure, the sealing effect is better, and the second welding layer can be better prevented from falling off.

[0012] This utility model has the following beneficial effects:

[0013] By setting a mixing pipe at the front end of the pipeline reactor, the materials can be uniformly mixed in the mixing pipe before entering the pipeline reactor, which will not affect the subsequent reaction effect. When the materials entering the first raw material inlet pipe encounter the second raw material inlet pipe and bypass it, a vortex will be formed at its right end, so the two will be initially mixed. Then, when passing through the throttling pipe, the flow is throttled, and the liquid is in a turbulent state, which accelerates the mixing of materials. Then, it impacts the distribution mixing plate for further distribution and mixing, which increases the mixing effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 for Figure 1 Partial structural diagram Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the welded joint between the cooling jacket and the horizontal reaction tube.

[0017] Figure 4 This is a schematic diagram of the welded joint between the cooling jacket and the connecting pipe.

[0018] Figure 5 A schematic diagram of the side structure for fixing the clamp;

[0019] In the diagram: 1. First raw material inlet pipe; 2. Second raw material inlet pipe; 3. Mixing pipe; 4. Throttling pipe; 5. Flow meter; 6. Flow regulating valve; 7. Support rod; 8. Distribution mixing plate; 9. Collection annular trough; 10. Horizontal reaction pipe; 11. Connecting pipe; 12. Cooling jacket; 13. Bracket; 14. Fixing clamp; 15. Connecting arc pipe; 16. Sealing plate; 17. Fixing nut; 18. Rubber pad two; 19. Rubber pad one; 20. Welding layer one; 21. Anti-detachment groove one; 22. Welding layer two; 23. Anti-detachment groove two. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Example 1, such as Figures 1 to 5 As shown, this utility model is a pipeline reaction device for the production of chloroamine, including a pipeline reactor, which is fixed on a support 13. The upper end of the pipeline reactor is connected to a mixing pipeline 3 through a connecting flange. A sealing plate 16 is fixed to the outer end of the mixing pipeline 3. A first raw material inlet pipe 1, coaxial with the sealing plate 16, is fixed to the sealing plate 16. A second raw material inlet pipe 2, with its lower end extending into the top of the outer end of the mixing pipeline 3, is fixed to the top of the outer end of the mixing pipeline 3. A spray nozzle is provided on the side of the lower end of the second raw material inlet pipe 2 away from the first raw material inlet pipe 1. A throttling pipe 4 and a distribution mixing plate 8 are provided on the mixing pipeline 3 to the right of the spray nozzle. The pipeline reactor includes multiple horizontal reaction pipes 10 arranged vertically. The ends of adjacent horizontal reaction pipes 10 are connected by a connecting arc pipe 15 and the reaction material is transported in a serpentine manner. The outer end of each horizontal reaction pipe 10 is fitted with a cooling jacket 12. A connecting pipe 11 is fixed to the outer wall of each cooling jacket 12. Adjacent cooling jackets 12 are connected by the connecting pipe 11 and the cooling liquid is transported in a serpentine manner.

[0022] During operation, when the material entering through the first raw material inlet pipe 1 encounters and bypasses the second raw material inlet pipe 2, a vortex is formed at its right end, resulting in initial mixing. Then, as it passes through the throttling pipe 4, the flow is throttled, creating turbulence and accelerating mixing. Finally, it impacts the distribution mixing plate 8 for further distribution and mixing, enhancing the mixing effect and ensuring the reactants are uniformly mixed before entering the tubular reactor. This allows for more thorough contact between reactant molecules in the tubular reactor, accelerating the reaction rate and improving conversion and selectivity. Furthermore, premixing reduces the concentration gradient between materials, facilitating subsequent mass transfer processes within the tubular reactor. The mixed material enters the tubular reactor for reaction. During the reaction, cooling liquid supplied through the cooling jacket 12 cools the horizontal reaction tube 10, and the reacted material is discharged from the bottom.

[0023] In Example 2, based on Example 1, both the second raw material inlet pipe 2 and the first raw material inlet pipe 1 are equipped with flow regulating valves 6 and flow meters 5. Cooling liquid enters through the lowest connecting pipe 11 and then exits through the highest connecting pipe 11. A temperature sensor is installed inside the pipeline reaction device, allowing for controllable temperature regulation by adjusting the flow regulating valve 6 based on the sensor's temperature. The temperature sensor and flow regulating valve 6 can be connected to a controller for automatic control.

[0024] The throttling pipe 4 is a reducer with a diameter larger at the left end than at the right end. A support rod 7 is fixed to the outside of the right end of the throttling pipe 4, and the other end of the support rod 7 is fixed to the mixing pipe 3. The outer wall of the left end of the throttling pipe 4 is conical to facilitate fitting against the inner wall of the mixing pipe 3. The outer end of the support rod 7 is welded and fixed to the inner wall of the mixing pipe 3.

[0025] The distribution mixing plate 8 is a cone-shaped structure that bulges to the left from the center. It has evenly distributed through holes. An L-shaped collecting annular mesh 9 is fixed to the outer side of the distribution mixing plate 8, and the outer side of the collecting annular mesh 9 is fixed to the inner wall of the mixing pipe 3. The mixed liquid is throttled when passing through the throttling pipe 4, and then impacts the center of the distribution mixing plate 8 for separation and mixing. Larger impurities in the liquid are filtered out at this time and then flushed into the collecting annular mesh 9 for centralized collection.

[0026] The mixing pipe 3 is a two-section connected structure, with the two sections connected by a fixed flange. The throttling pipe 4 is fixed to the left end of the mixing pipe 3, and the distribution mixing plate 8 is fixed to the right end of the mixing pipe 3. When it is necessary to clean the impurities in the collection annular trough 9, the bolts on the fixed flange and the flange on the right end of the mixing pipe 3 can be removed, and then the right end of the mixing pipe 3 can be removed to clean the collection annular trough 9.

[0027] Each cooling jacket 12 has a U-shaped fixing clamp 14 at both ends. The two ends of the fixing clamp 14 pass through the bracket 13 and are connected to the fixing nut 17. The bracket 13 has an embedded groove 1 corresponding to the cooling jacket 12, and a rubber pad 19 is fixed in the embedded groove 1. The inner side wall of the fixing clamp 14 has an embedded groove 2, and a rubber pad 2 18 is fixed in the embedded groove 2. During installation, both ends of each cooling jacket 12 are clamped by the fixing clamp 14, then inserted into the mounting hole on the bracket 13, and then the fixing nut 17 is screwed on to fix and tighten it.

[0028] Both ends of the cooling jacket 12 are provided with contraction tube openings. A welding layer 20 is provided between the contraction tube openings and the horizontal reaction tube 10. The horizontal reaction tube 10 corresponding to the welding layer 20 is provided with an anti-detachment groove 21 larger than a semi-circular arc. The welding layer 20 is provided with an anti-detachment rib extending into the anti-detachment groove 21. The outer wall of the contraction tube opening forms a 45-degree angle with the axis of the cooling jacket 12. There is a 1 mm gap between the inner side of the outer end of the contraction tube opening and the outer wall of the cooling jacket 12. During welding, the welding layer 20 seals this gap.

[0029] The cooling jacket 12 has tapered fixing holes at both ends that mate with the connecting pipe 11. The outer sidewall of the tapered fixing hole forms a 50-degree angle with the axis of the connecting pipe 11. A second welding layer 22 is provided between the connecting pipe 11 and the cooling jacket 12. The inner end of the second welding layer 22 extends into the inner end of the fixing hole. A second anti-detachment groove 23 larger than a semi-circular arc is provided on the lower sidewall of the fixing hole. A second anti-detachment rib 2 extends into the second anti-detachment groove 23 on the second welding layer 22.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0031] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A pipeline reaction apparatus for the production of chloroamines, comprising a pipeline reactor fixed on a support (13), characterized in that: The upper end of the pipeline reactor is connected to a mixing pipe (3) via a connecting flange. A sealing plate (16) is fixed to the outer end of the mixing pipe (3). A first raw material inlet pipe (1) coaxial with the sealing plate (16) is fixed to the sealing plate (16). A second raw material inlet pipe (2) with its lower end extending into the top of the outer end of the mixing pipe (3) is fixed to the top of the outer end of the mixing pipe (3). A spray nozzle is provided on the side of the lower end of the second raw material inlet pipe (2) away from the first raw material inlet pipe (1). A throttling pipe (4) and a distribution mixing plate (8) are provided on the mixing pipe (3) to the right of the spray nozzle. The pipeline reactor includes multiple horizontal reaction pipes (10) arranged vertically. The ends of adjacent horizontal reaction pipes (10) are connected by a connecting arc pipe (15) and the reaction material is transported in a serpentine manner. A cooling jacket (12) is fitted on the outer end of each horizontal reaction pipe (10). A connecting pipe (11) is fixed on the outer wall of each cooling jacket (12). Adjacent cooling jackets (12) are connected by a connecting pipe (11) and the cooling liquid is transported in a serpentine manner.

2. The pipeline reaction apparatus for producing chloroamine according to claim 1, characterized in that: Both the second raw material inlet pipe (2) and the first raw material inlet pipe (1) are equipped with a flow regulating valve (6) and a flow meter (5).

3. The pipeline reaction apparatus for producing chloroamine according to claim 1, characterized in that: The throttling pipe (4) is a reducing pipe with a diameter greater than that of the right end. A support rod (7) is fixed to the outside of the right end of the throttling pipe (4), and the other end of the support rod (7) is fixed to the mixing pipe (3).

4. The pipeline reaction apparatus for producing chloroamine according to claim 3, characterized in that: The distribution mixing plate (8) is a cone shape with the middle protruding to the left. The distribution mixing plate (8) is evenly provided with distribution through holes. A collection annular trough mesh (9) with an L-shaped cross-section is fixed on the outside of the distribution mixing plate (8). The outside of the collection annular trough mesh (9) is fixed to the inner wall of the mixing pipe (3).

5. The pipeline reaction apparatus for producing chloroamine according to claim 4, characterized in that: The mixing pipe (3) is a two-section connected structure. The two sections of the mixing pipe (3) are connected by a fixed flange. The throttling pipe (4) is fixed on the mixing pipe (3) at the left end, and the mixing plate (8) is fixed on the mixing pipe (3) at the right end.

6. The pipeline reaction apparatus for producing chloroamine according to claim 1, characterized in that: Each cooling jacket (12) has a U-shaped fixing clamp (14) on both ends. The two ends of the fixing clamp (14) pass through the bracket (13) and are connected to the fixing nut (17). The bracket (13) has an embedded groove one corresponding to the cooling jacket (12). A rubber pad one (19) is fixed in the embedded groove one. An embedded groove two is provided on the inner side wall of the fixing clamp (14). A rubber pad two (18) is fixed in the embedded groove two.

7. The pipeline reaction apparatus for producing chloroamine according to claim 1, characterized in that: Both ends of the cooling jacket (12) are provided with shrink tube openings. A welding layer (20) is provided between the shrink tube opening and the horizontal reaction tube (10). The horizontal reaction tube (10) corresponding to the welding layer (20) is provided with an anti-detachment groove (21) larger than a semi-circular arc. An anti-detachment rib (21) extending into the anti-detachment groove (21) is provided on the welding layer (20).

8. The pipeline reaction apparatus for producing chloroamine according to claim 1, characterized in that: The cooling jacket (12) has tapered fixing holes at both ends that mate with the connecting pipe (11). A second welding layer (22) is provided between the connecting pipe (11) and the cooling jacket (12). The inner end of the second welding layer (22) extends into the inner end of the fixing hole. A second anti-detachment groove (23) larger than a semi-circular arc is provided on the lower side wall of the fixing hole. A second anti-detachment rib (23) extending into the second anti-detachment groove (23) is provided on the second welding layer (22).

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