2-chloro-5-chloromethylthiazole rectification apparatus

Abstract

The utility model relates to a 2-chloro-5-chloromethylthiazole rectification device belongs to chemical industry production technical field. Tower top reflux condenser is installed in the upper portion of rectifying tower one side through fixed frame, the liquid outlet of tower top reflux condenser is connected with reflux storage tank, the fixed frame includes suspender, support beam A, the suspender is fixed on rectifying tower through upper hoop, support beam A is installed on rectifying tower through lower hoop, tower top reflux condenser is fixed between suspender and support beam A. Advantageous effect: tower top reflux condenser adopts side-mounted type layout node, to save the land space, and the fixed frame design avoids the condenser direct welding tower body, reduces tower top structural deformation risk. The compound fixed frame that adopts suspender, support beam A constitutes, and cooperates upper and lower hoop, disperses condenser load to tower body circumference, improves its anti -seismic performance, effectively avoids the tower body deformation caused by local stress concentration, guarantees long -term operation safety.

Description

Technical Field

[0001] This utility model relates to a 2-chloro-5-chloromethylthiazole distillation apparatus, belonging to the field of chemical production technology. Background Technology

[0002] Distillation columns utilize the property that the components in a mixture have different volatility, i.e., different vapor pressures at the same temperature. This allows lighter components (low-boiling-point substances) in the liquid phase to transfer to the gas phase, while heavier components (high-boiling-point substances) in the gas phase transfer to the liquid phase, thus achieving separation. The production of 2-chloro-5-chloromethylthiazole requires distillation to obtain a pure product.

[0003] Utility model patent number 202423010978.4 discloses a hydroxypropyl beta-cyclodextrin production system. It includes a reaction vessel, with a distillation column, a nanofiltration unit, and a separation column sequentially connected to the bottom of the reaction vessel. The top of the reaction vessel is equipped with an alkali inlet, a cyclodextrin inlet, an acid inlet, and a propylene oxide inlet. A pH meter is installed on the reaction vessel, and a sensing valve is installed at the acid inlet, electrically connected to the pH meter. The distillation column has an upper packing layer, a middle packing layer, and a lower packing layer arranged from top to bottom. The upper packing layer is connected to a condenser, and the middle packing layer is connected to the bottom of the reaction vessel via a pipeline.

[0004] While the aforementioned patents can achieve the function of material distillation, current technology is not comprehensive and has the following drawbacks: 1. When the condenser is side-mounted, there is a lack of supporting structure. The condenser is installed on the distillation column using the traditional welding method, which can easily lead to localized thermal deformation at the top of the column, affecting the overall structural stability of the distillation column. 2. Welded condensers are difficult to disassemble, requiring cutting the column body for maintenance, increasing maintenance costs and potentially damaging the integrity of the column.

[0005] To solve one of the above problems, there is an urgent need for a 2-chloro-5-chloromethylthiazole distillation apparatus. Utility Model Content

[0006] Based on the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to use a fixing frame to install the top reflux condenser on one side of the upper part of the distillation column, and how to design the fixing frame to avoid direct welding of the condenser to the column body and reduce the risk of deformation of the column top structure. To this end, a 2-chloro-5-chloromethylthiazole distillation device is provided.

[0007] The 2-chloro-5-chloromethylthiazole distillation apparatus of this utility model includes a distillation column. The top of the distillation column has a top vapor outlet and a reflux liquid inlet. The middle of the distillation column has a feed inlet connected to a feed pipe. The other end of the feed pipe is connected to a raw material storage tank. A feed pump is installed on the feed pipe. The bottom of the distillation column has a vapor inlet and a bottom liquid outlet. Both the vapor inlet and the bottom liquid outlet are connected to a reboiler. The vapor outlet is connected to the vapor inlet of the top reflux condenser via pipes A and B. The top reflux condenser is installed on one side of the upper part of the distillation column by a fixing frame. The liquid outlet of the top reflux condenser is connected to a reflux storage tank. The fixing frame includes a lifting beam and a support beam A. The lifting beam is fixed to the distillation column by an upper clamp, and the support beam A is installed on the distillation column by a lower clamp. The top reflux condenser is fixed between the lifting beam and the support beam A. The top reflux condenser adopts a side-mounted layout to save space, while the fixed frame design avoids direct welding of the condenser to the tower body, reducing the risk of deformation of the top structure.

[0008] In addition, a composite fixing frame consisting of a hanging beam and a support beam A, along with upper and lower clamps, is used to distribute the condenser load to the circumference of the tower body, thereby improving its seismic performance, effectively avoiding tower deformation caused by local stress concentration, and ensuring long-term operational safety.

[0009] The distillation column and condenser can be directly fixed together. Direct fixing reduces connecting pipelines, simplifies system design, and reduces the complexity of installation and maintenance. The condenser is directly connected to the top of the column through pipelines A and B, which can reduce pipeline pressure drop and maintain column pressure stability.

[0010] Preferably, the top reflux condenser is fixed with a suspension rope A and a suspension rope B. The upper end of the suspension rope A passes through the suspension beam and is connected to the top plate A. The upper end of the suspension rope B passes through the suspension beam and is connected to the top plate A. A compression spring A is provided between the top plate A and the suspension beam. A compression spring B is provided between the top plate A and the suspension beam. The bottom of the top reflux condenser is provided with a condenser base connected to the support beam A.

[0011] The vibration resistance is enhanced through the synergistic effect of the double rope-spring composite suspension system and the bottom support beam.

[0012] Preferably, pipe clamp A and pipe clamp B are installed on the pipe B, the lifting beam includes beam unit A and beam unit B, beam unit A is installed between the upper clamp and pipe clamp B, beam unit B is connected to pipe clamp B, a diagonal support A is fixed on beam unit B, and the other end of the diagonal support A is connected to pipe clamp A.

[0013] Preferably, an inclined support B is provided between the support beam A and the distillation column.

[0014] Preferably, the inclined support B includes a support beam hinge seat fixed to the support beam A, a lower hinge seat fixed to the outer wall of the distillation column, a first rod hinged to the lower hinge seat, and a second rod hinged to the support beam hinge seat. The other ends of both the first and second rods are provided with external threads that mate with a threaded pipe, and the external threads on the first and second rods have opposite directions of rotation. By rotating the threaded pipe, the depth to which the first and second rods are screwed into the threaded pipe is changed, thus changing the distance between the two ends of the first and second rods. After adjustment, the first and second rods are welded to the threaded pipe. By adjusting the length of the inclined support B to adapt to the support beam A, stable support is provided for the support beam A.

[0015] Preferably, the reflux storage tank is connected to a reflux main pipe, a reflux pump is installed on the reflux main pipe, the outlet of the reflux pump is connected to a reflux pipe and a product discharge pipe A, the reflux pipe is connected to the reflux liquid inlet, and a flow regulating valve is installed on both the reflux pipe and the product discharge pipe A.

[0016] Preferably, the condenser base has a rectangular structure, and the reflux main pipe can pass through the condenser base.

[0017] Preferably, one end of the diagonal support A is provided with a connecting plate, which is detachably mounted on the lifting beam by bolts.

[0018] Preferably, both the lifting beam and the support beam A are rectangular steel pipes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention features a side-mounted reflux condenser at the top of the column to save space. At the same time, the fixed frame design avoids direct welding of the condenser to the column body, reducing the risk of structural deformation at the top of the column.

[0021] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention uses a composite fixing frame composed of a hanging beam and a support beam A, and is equipped with upper and lower clamps to distribute the condenser load to the circumference of the tower body, thereby improving its seismic performance, effectively avoiding tower deformation caused by local stress concentration, and ensuring long-term safe operation.

[0022] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention allows the distillation column and condenser to be directly fixed together. This direct fixing reduces the number of connecting pipelines, simplifies the system design, and lowers the complexity of installation and maintenance. The condenser is directly connected to the top of the column through pipelines A and B, which reduces pipeline pressure drop and maintains stable column pressure.

[0023] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention changes the depth to which the first and second rods are screwed into the threaded tube by rotating the threaded tube, thereby changing the distance between the two ends of the first and second rods. After adjustment, the first and second rods are welded to the threaded tube. The length of the inclined support B is adjusted to adapt to the support beam A, thus providing stable support for the support beam A. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the external structure of the top reflux condenser of this utility model;

[0027] Figure 3 This is a structural diagram of the condenser base.

[0028] In the diagram: 1. Distillation column; 2. Feed inlet; 3. Top reflux condenser; 4. Bottom reboiler; 5. Reflux storage tank; 6. Raw material storage tank; 7. Feed pump; 8. Feed pipe; 9. Lifting beam; 10. Support beam A; 11. Pipe A; 12. Pipe B; 13. Diagonal support A; 14. Diagonal support B; 15. Lifting rope A; 16. Lifting rope B; 17. Top plate A; 18. Top plate A; 19. Compression spring A; 20. Compression spring B; 21. Reflux pump; 22. Upper clamp; 23. Lower clamp; 24. Condenser base; 25. Pipe clamp A; 26. Pipe clamp B; 27. Reflux main pipe. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0030] Example 1, as Figure 1-2As shown, the 2-chloro-5-chloromethylthiazole distillation apparatus includes a distillation column 1. The top of the distillation column 1 has a top vapor outlet and a reflux inlet. The middle of the distillation column 1 has a feed inlet 2, to which a feed pipe 8 is connected. The other end of the feed pipe 8 is connected to a raw material storage tank 6. A feed pump 7 is installed on the feed pipe 8. The bottom of the distillation column 1 has a vapor inlet and a bottom liquid outlet. Both the vapor inlet and the bottom liquid outlet are connected to a reboiler 4. The steam inlet of the top reflux condenser 3 is connected to the steam inlet of the column top reflux condenser 3 via pipes A11 and B12. The top reflux condenser 3 is installed on one side of the upper part of the distillation column 1 via a fixing frame. The liquid outlet of the top reflux condenser 3 is connected to the reflux storage tank 5. The fixing frame includes a lifting beam 9 and a support beam A10. The lifting beam 9 is fixed to the distillation column 1 by an upper clamp 22, and the support beam A10 is installed on the distillation column 1 by a lower clamp 23. The top reflux condenser 3 is fixed between the lifting beam 9 and the support beam A10. The side-mounted layout saves space, and the fixing frame design avoids direct welding of the condenser to the column body, reducing the risk of deformation of the column top structure.

[0031] In addition, a composite fixing frame consisting of lifting beam 9 and support beam A10, along with upper and lower clamps, is used to distribute the condenser load to the circumference of the tower body, thereby improving its seismic performance, effectively avoiding tower deformation caused by local stress concentration, and ensuring long-term operational safety.

[0032] The distillation column and condenser can be directly fixed together. Direct fixing reduces connecting pipelines, simplifies system design, and reduces the complexity of installation and maintenance. The condenser is directly connected to the top of the column through pipelines A11 and B12, which can reduce pipeline pressure drop and maintain column pressure stability.

[0033] Example 2, as Figure 1-2As shown, the 2-chloro-5-chloromethylthiazole distillation apparatus includes a distillation column 1. The top of the distillation column 1 has a top vapor outlet and a reflux inlet. The middle of the distillation column 1 has a feed inlet 2, to which a feed pipe 8 is connected. The other end of the feed pipe 8 is connected to a raw material storage tank 6. A feed pump 7 is installed on the feed pipe 8. The bottom of the distillation column 1 has a vapor inlet and a bottom liquid outlet. Both the vapor inlet and the bottom liquid outlet are connected to a reboiler 4. The steam inlet of the top reflux condenser 3 is connected to the steam inlet of the column top reflux condenser 3 via pipes A11 and B12. The top reflux condenser 3 is installed on one side of the upper part of the distillation column 1 via a fixing frame. The liquid outlet of the top reflux condenser 3 is connected to the reflux storage tank 5. The fixing frame includes a lifting beam 9 and a support beam A10. The lifting beam 9 is fixed to the distillation column 1 by an upper clamp 22, and the support beam A10 is installed on the distillation column 1 by a lower clamp 23. The top reflux condenser 3 is fixed between the lifting beam 9 and the support beam A10. The side-mounted layout saves space, and the fixing frame design avoids direct welding of the condenser to the column body, reducing the risk of deformation of the column top structure.

[0034] Furthermore, the top reflux condenser 3 is fixed with a suspension rope A15 and a suspension rope B16. The upper end of the suspension rope A15 passes through the suspension beam 9 and is connected to the top plate A17. The upper end of the suspension rope B16 passes through the suspension beam 9 and is connected to the top plate A18. A compression spring A19 is provided between the top plate A17 and the suspension beam 9. A compression spring B20 is provided between the top plate A18 and the suspension beam 9. The bottom of the top reflux condenser 3 is provided with a condenser base 24 connected to the support beam A10.

[0035] The vibration resistance is enhanced through the synergistic effect of the double rope-spring composite suspension system and the bottom support beam.

[0036] Furthermore, pipe clamps A25 and B26 are installed on the pipe B12, and the lifting beam 9 includes beam unit A and beam unit B. Beam unit A is installed between the upper clamp 22 and pipe clamp B26. Beam unit B is connected to pipe clamp B26. An inclined support A13 is fixed on beam unit B, and the other end of the inclined support A13 is connected to pipe clamp A25.

[0037] Furthermore, an inclined support B14 is provided between the support beam A10 and the distillation column 1.

[0038] Furthermore, the inclined support B14 includes a support beam hinge seat fixed to the support beam A10, a lower hinge seat fixed to the outer wall of the distillation column 1, a first rod 14.1 hinged to the lower hinge seat, and a second rod 14.2 hinged to the support beam hinge seat. The other ends of both the first rod 14.1 and the second rod 14.2 are provided with external threads that mate with the threaded tube 14.3, and the external threads on the first and second rods rotate in opposite directions. By rotating the threaded tube, the depth to which the first and second rods are screwed into the threaded tube is changed, thus changing the distance between the two ends of the first and second rods. After adjustment, the first and second rods are welded to the threaded tube. By adjusting the length of the inclined support B14 to adapt to the support beam A10, stable support is provided for the support beam A10.

[0039] Furthermore, the reflux storage tank 5 is connected to the reflux main pipe 27, and a reflux pump 21 is installed on the reflux main pipe. The outlet of the reflux pump 21 is connected to the reflux pipe and the product discharge pipe A. The reflux pipe is connected to the reflux liquid inlet, and a flow regulating valve is installed on both the reflux pipe and the product discharge pipe A.

[0040] Furthermore, referring to Figure 3 The condenser base 24 has a rectangular structure, and the return main pipe 27 can pass through the condenser base 24.

[0041] Furthermore, a connecting plate is provided at one end of the inclined support A13, and the connecting plate is detachably installed on the hanging beam 9 by bolts.

[0042] Furthermore, both the lifting beam 9 and the support beam A10 are rectangular steel pipes.

[0043] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention features a side-mounted reflux condenser at the top of the column to save space. At the same time, the fixed frame design avoids direct welding of the condenser to the column body, reducing the risk of structural deformation at the top of the column.

[0044] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention uses a composite fixing frame composed of a hanging beam and a support beam A, and is equipped with upper and lower clamps to distribute the condenser load to the circumference of the tower body, thereby improving its seismic performance, effectively avoiding tower deformation caused by local stress concentration, and ensuring long-term safe operation.

[0045] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention allows the distillation column and condenser to be directly fixed together. This direct fixing reduces the number of connecting pipelines, simplifies the system design, and lowers the complexity of installation and maintenance. The condenser is directly connected to the top of the column through pipelines A and B, which reduces pipeline pressure drop and maintains stable column pressure.

[0046] The 2-chloro-5-chloromethylthiazole distillation apparatus of this invention changes the depth to which the first and second rods are screwed into the threaded tube by rotating the threaded tube, thereby changing the distance between the two ends of the first and second rods. After adjustment, the first and second rods are welded to the threaded tube. The length of the inclined support B is adjusted to adapt to the support beam A, thus providing stable support for the support beam A.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0048] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A 2-chloro-5-chloromethylthiazole distillation apparatus, comprising a distillation column, wherein the top of the distillation column has a top vapor outlet and a reflux inlet, the middle of the distillation column has a feed inlet, a feed pipe is connected to the feed inlet, the other end of the feed pipe is connected to a raw material storage tank, a feed pump is installed on the feed pipe, and the bottom of the distillation column has a vapor inlet and a bottom liquid outlet, both of which are connected to a reboiler, characterized in that: The steam outlet is connected to the steam inlet of the top reflux condenser via pipes A and B. The top reflux condenser is installed on one side of the upper part of the distillation column via a fixing frame. The liquid outlet of the top reflux condenser is connected to a reflux storage tank. The fixing frame includes a lifting beam and a support beam A. The lifting beam is fixed to the distillation column by an upper clamp, and the support beam A is installed on the distillation column by a lower clamp. The top reflux condenser is fixed between the lifting beam and the support beam A.

2. The 2-chloro-5-chloromethylthiazole distillation apparatus according to claim 1, characterized in that, The top reflux condenser is fixed with a suspension rope A and a suspension rope B. The upper end of the suspension rope A passes through the suspension beam and is connected to the top plate A. The upper end of the suspension rope B passes through the suspension beam and is connected to the top plate A. A compression spring A is installed between the top plate A and the suspension beam. A compression spring B is installed between the top plate A and the suspension beam. The bottom of the top reflux condenser is provided with a condenser base connected to the support beam A.

3. The 2-chloro-5-chloromethylthiazole distillation apparatus according to claim 2, characterized in that, Pipe B is equipped with pipe clamps A and B. The lifting beam includes beam unit A and beam unit B. Beam unit A is installed between the upper clamp and pipe clamp B. Beam unit B is connected to pipe clamp B. An inclined support A is fixed on beam unit B. The other end of the inclined support A is connected to pipe clamp A.

4. The 2-chloro-5-chloromethylthiazole distillation apparatus according to claim 3, characterized in that, An inclined support B is provided between the support beam A and the distillation column.

5. The 2-chloro-5-chloromethylthiazole distillation apparatus according to claim 4, characterized in that, The inclined support B includes a support beam hinge seat fixed to the support beam A, a lower hinge seat fixed to the outer wall of the distillation column, a first rod body hinged to the lower hinge seat, and a second rod body hinged to the support beam hinge seat. The other ends of the first rod body and the second rod body are provided with external threads that mate with threaded pipes, and the external threads on the first rod body and the second rod body have opposite directions of rotation.

6. The 2-chloro-5-chloromethylthiazole distillation apparatus according to claim 5, characterized in that, The reflux storage tank is connected to a reflux main pipe, which is equipped with a reflux pump. The outlet of the reflux pump is connected to a reflux pipe and a product discharge pipe A. The reflux pipe is connected to the reflux liquid inlet, and both the reflux pipe and the product discharge pipe A are equipped with flow regulating valves.

7. The 2-chloro-5-chloromethylthiazole distillation apparatus according to claim 6, characterized in that, The condenser base has a rectangular structure, and the reflux main pipe can pass through the condenser base.

8. The 2-chloro-5-chloromethylthiazole distillation apparatus according to claim 7, characterized in that, One end of the diagonal support A is provided with a connecting plate, which is detachably installed on the lifting beam by bolts.

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