Rectifying tower reboiler
By installing filter rings and positioning components in the steam inlet pipe of the reboiler in the distillation column, the problem of particulate matter in the steam entering the reboiler was solved, thereby improving the distillation effect and enabling the recovery and reuse of condensate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG DINGYING CHEM ENG
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-19
AI Technical Summary
Existing distillation column reboilers lack effective particulate matter filtration structures, causing impurities entrained in the steam to enter the reboiler body, affecting the lifespan of heat exchange elements and distillation efficiency.
A filter ring and a positioning assembly are installed in the steam inlet pipe. The filter ring is used to filter particulate matter in the steam, and the positioning assembly is used to fix the filter ring. Combined with the locking structure of the L-shaped pipe, it is convenient to disassemble and assemble the filter ring and collect condensate.
It effectively prevents particulate matter in the steam from entering the reboiler body, ensuring distillation effect and product quality, while facilitating filter ring cleaning and condensate recovery.
Smart Images

Figure CN224252095U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reboiler technology, and more particularly to a distillation column reboiler. Background Technology
[0002] In chemical production processes, distillation, as a highly efficient separation technology, is widely used in petrochemicals, organic synthesis, environmental protection, and many other fields. During distillation, a liquid mixture undergoes repeated processes of heating, vaporization, condensation, and reflux to achieve effective component separation. The reboiler, as a crucial component of the distillation column, primarily functions to heat and partially vaporize the bottom liquid, providing continuous thermal energy support to the column and thus maintaining thermodynamic balance and separation efficiency.
[0003] Existing distillation column reboilers mostly adopt shell-and-tube, thermosiphon, or forced circulation structures. They use external heating media to heat the bottom liquid, maintain the temperature inside the column, and promote partial vaporization of the liquid to support the continuous distillation separation process. However, existing distillation column reboilers usually lack an effective particulate matter filtration structure when the vapor medium enters, causing impurities entrained in the vapor to enter the reboiler body. This not only affects the service life of heat exchange elements but may also reduce the distillation efficiency. Therefore, a distillation column reboiler is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a distillation column reboiler, which aims to improve the problem of the lack of an effective particulate matter filtration structure in the prior art, which causes impurities entrained in the steam to enter the reboiler body.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A distillation column reboiler includes a reboiler body, a feed pipe fixedly connected to the top of the reboiler body, a discharge pipe fixedly connected to the bottom of the reboiler body, a steam inlet pipe fixedly connected to the side wall of the reboiler body, a heat insulation box provided on the side wall of the reboiler body, a water outlet pipe fixedly connected to the side wall of the reboiler body, a filtration mechanism provided inside the steam inlet pipe, and a conversion mechanism provided at one end of the water outlet pipe.
[0007] The filtration mechanism includes a filter ring, a slider is fixedly connected to the side wall of the filter ring, a groove is provided inside the steam inlet pipe, the side wall of the filter ring is slidably connected to the inside of the steam inlet pipe, the side wall of the slider is slidably connected to the inside of the groove, a handle is fixedly connected to the side wall of the filter ring, and a positioning component is provided on the side wall of the steam inlet pipe.
[0008] As a further description of the above technical solution:
[0009] The positioning component includes a locking block and a recessed hole inside the filter ring. A sleeve is fixedly connected inside the steam inlet pipe. The side wall of the locking block is connected to the inside of the sleeve. The side wall of the locking block is slidably connected to the inside of the recessed hole. A spring is provided inside the sleeve.
[0010] As a further description of the above technical solution:
[0011] One end of the spring is fixedly connected to the inside of the sleeve, and the other end of the spring is fixedly connected to the side wall of the locking block.
[0012] As a further description of the above technical solution:
[0013] The conversion mechanism includes an L-shaped pipe, with a fixing ring 1 fixedly connected to one end of the outlet pipe and a fixing ring 2 fixedly connected to one end of the L-shaped pipe. The fixing ring 1 and the fixing ring 2 are fitted together, and the side walls of the fixing ring 1 and the fixing ring 2 are provided with a locking component.
[0014] As a further description of the above technical solution:
[0015] The locking assembly includes a first locking claw, a first locking ring, a second locking ring, and a second locking claw. One side wall of the locking claw is fixedly connected to one side wall of the fixed ring. One side wall of the locking ring is fixedly connected to one side wall of the fixed ring. The second side wall of the locking ring is fixedly connected to the second side wall of the fixed ring. The second side wall of the locking claw is fixedly connected to the second side wall of the fixed ring.
[0016] As a further description of the above technical solution:
[0017] The first chuck engages with the second chuck, and the second chuck and the first chuck engage with each other.
[0018] As a further description of the above technical solution:
[0019] The first clamping claw and the first clamping ring are staggered, and the second clamping ring and the second clamping claw are staggered.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when steam enters the reboiler body through the steam inlet pipe, the filter ring can block the particulate matter therein, preventing it from affecting the distillation effect. After the operation is completed, the filter ring can be disassembled to clean impurities. When reinstalling, the filter ring slider is pushed into the slide groove, and the filter ring is locked by the locking block to complete the fixation. Through the cooperation between the above structures, particulate matter in the steam is effectively blocked, preventing it from entering the reboiler body and ensuring the distillation effect and product quality.
[0022] 2. In this utility model, the second fixing ring on the L-shaped tube is attached to the first fixing ring, and the second clamp is positioned between the first clamp and the first clamp. By rotating the L-shaped tube, the second clamp gradually engages with the first clamp, while the first clamp engages with the second clamp, thereby completing the installation of the L-shaped tube for the collection and recycling of condensate. Through the cooperation between the above structures, the rapid collection and recycling of condensate is achieved. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of the reboiler for the distillation column proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the upper part of the reboiler body of the distillation column reboiler proposed in this utility model;
[0025] Figure 3 This is a cross-sectional view of the feed pipe of the reboiler in the distillation column proposed in this utility model;
[0026] Figure 4 This is a schematic diagram of the lower part of the reboiler body of the distillation column reboiler proposed in this utility model;
[0027] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0028] Legend:
[0029] 1. Reboiler body; 2. Feed pipe; 3. Discharge pipe; 4. Steam inlet pipe; 5. Insulation box; 6. Water outlet pipe; 7. Filter ring; 8. Sliding block; 9. Slide groove; 10. Handle; 11. Sleeve; 12. Spring; 13. Clamping block; 14. Recessed hole; 15. Fixing ring one; 16. L-shaped tube; 17. Clamping claw one; 18. Clamping ring one; 19. Fixing ring two; 20. Clamping ring two; 21. Clamping claw two. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1-3This utility model provides an embodiment of a distillation column reboiler, comprising a reboiler body 1, a feed pipe 2 fixedly connected to the top of the reboiler body 1 for supplying the raw material liquid requiring heating into the reboiler, a discharge pipe 3 fixedly connected to the bottom of the reboiler body 1 for discharging the heated liquid or residual liquid, a steam inlet pipe 4 fixedly connected to the side wall of the reboiler body 1 for allowing steam to enter the body and provide a heat source for heating the material, thereby improving pre-distillation efficiency, a heat insulation box 5 provided on the side wall of the reboiler body 1 for reducing heat loss, improving thermal energy utilization, and reducing energy consumption, and a water outlet pipe 6 fixedly connected to the side wall of the reboiler body 1 for timely discharge of condensate, preventing water accumulation from affecting the heating effect and improving the stability of equipment operation, a filter mechanism provided inside the steam inlet pipe 4 for filtering out particulate impurities before steam enters the reboiler, protecting the internal cleanliness of the equipment, and improving distillation purity and efficiency, and a conversion mechanism provided at one end of the water outlet pipe 6 for interface conversion or connection to external drainage according to usage requirements. The device enhances equipment adaptability; the filtration mechanism includes a filter ring 7, a slider 8 fixedly connected to the side wall of the filter ring 7, and a groove 9 opened inside the steam inlet pipe 4. The side wall of the filter ring 7 is slidably connected to the inside of the steam inlet pipe 4, and the side wall of the slider 8 is slidably connected to the inside of the groove 9, which facilitates guidance. A handle 10 is fixedly connected to the side wall of the filter ring 7 for easy manual disassembly and maintenance, improving operational convenience. A positioning component is provided on the side wall of the steam inlet pipe 4 to automatically lock the filter ring after installation, preventing loosening or falling off during operation. The positioning component includes a locking block 13 and a recess 14 formed inside the filter ring 7. A sleeve 11 is fixedly connected inside the steam inlet pipe 4. The side wall of the locking block 13 is connected to the inside of the sleeve 11, and the side wall of the locking block 13 is slidably connected to the inside of the recess 14. A spring 12 is provided inside the sleeve 11. One end of the spring 12 is fixedly connected to the inside of the sleeve 11, and the other end of the spring 12 is fixedly connected to the side wall of the locking block 13. After the filter ring is installed, the spring automatically resets and pushes the locking block 13 into the recess 14, thereby achieving automatic locking of the filter ring.
[0032] Reference Figures 4-5The conversion mechanism includes an L-shaped pipe 16, with a fixing ring 15 fixedly connected to one end of the outlet pipe 6, and a fixing ring 29 fixedly connected to the other end of the L-shaped pipe 16. The fixing ring 15 and the fixing ring 29 are fitted together. The sidewalls of the fixing ring 15 and the fixing ring 29 are provided with engaging components to achieve quick and stable assembly and disassembly. The engaging components include a claw 17, a retaining ring 18, a retaining ring 20, and a claw 21. The sidewall of the claw 17 is fixedly connected to the sidewall of the fixing ring 15, and the retaining ring 18 is fixedly connected to the sidewall of the fixing ring 19. 15 sidewalls form the first engaging unit. The sidewall of the second retaining ring 20 is fixedly connected to the sidewall of the second fixing ring 19, and the sidewall of the second retaining claw 21 is fixedly connected to the sidewall of the second fixing ring 19, forming the second engaging unit. The first retaining claw 17 engages with the second retaining ring 20, and the second retaining claw 21 engages with the first retaining ring 18. The first retaining claw 17 and the first retaining ring 18 are staggered, and the second retaining ring 20 and the second retaining claw 21 are staggered. Thus, in the actual installation process, the effect of multi-point synchronous buckling can be achieved through rotation operation, which enhances the connection firmness.
[0033] Working principle: When the equipment is in use, steam enters the reboiler body 1 through the steam inlet pipe 4. When the steam enters, the particulate matter mixed in with it will be blocked by the filter ring 7, so as to prevent it from entering the reboiler body 1 and affecting the subsequent distillation effect. After the equipment is finished working, the filter ring 7 can be removed from the steam inlet pipe 4 by pulling the handle 10 to clean the blocked particulate matter. When reinstalling after cleaning, first slide the slider 8 on the side wall of the filter ring 7 into the slide groove 9 and push the filter ring 7 into the steam inlet pipe 4, thereby squeezing the locking block 13, which moves upward to squeeze the spring 12. When the concave hole 14 moves to the bottom of the locking block 13, the spring 12 loses pressure and resets, thereby pushing the locking block 13 downward and locking it in the concave hole 14 for fixation.
[0034] When it is necessary to collect the water flowing out of the outlet pipe 6 for reuse, the fixing ring 19 on the L-shaped pipe 16 can be fitted with the fixing ring 15, and the claw 21 can be positioned between the claw 17 and the ring 18. At the same time, the claw 17 is positioned between the ring 20 and the claw 21. Then, by rotating the L-shaped pipe 16, the claw 21 gradually engages with the ring 18, and the claw 17 engages with the ring 20, thus completing the installation of the L-shaped pipe 16 for collecting condensate for recycling.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A distillation column reboiler, comprising a reboiler body (1), characterized in that: The reboiler body (1) is fixedly connected to the top of the feed pipe (2), the reboiler body (1) is fixedly connected to the bottom of the feed pipe (3), the reboiler body (1) is fixedly connected to the side wall of the reboiler body (1) and the heat insulation box (5) is provided on the side wall of the reboiler body (1) and the water outlet pipe (6) is fixedly connected on the side wall of the reboiler body (1). The steam inlet pipe (4) is provided with a filter mechanism, and the water outlet pipe (6) is provided with a conversion mechanism at one end. The filtration mechanism includes a filter ring (7), a slider (8) is fixedly connected to the side wall of the filter ring (7), a groove (9) is provided inside the steam inlet pipe (4), the side wall of the filter ring (7) is slidably connected to the inside of the steam inlet pipe (4), the side wall of the slider (8) is slidably connected to the inside of the groove (9), a handle (10) is fixedly connected to the side wall of the filter ring (7), and a positioning component is provided on the side wall of the steam inlet pipe (4).
2. The reboiler for the distillation column according to claim 1, characterized in that: The positioning component includes a locking block (13) and a recess (14) opened inside the filter ring (7). A sleeve (11) is fixedly connected inside the steam inlet pipe (4). The side wall of the locking block (13) is connected inside the sleeve (11). The side wall of the locking block (13) is slidably connected inside the recess (14). A spring (12) is provided inside the sleeve (11).
3. The reboiler for the distillation column according to claim 2, characterized in that: One end of the spring (12) is fixedly connected to the inside of the sleeve (11), and the other end of the spring (12) is fixedly connected to the side wall of the block (13).
4. The reboiler for the distillation column according to claim 1, characterized in that: The conversion mechanism includes an L-shaped pipe (16), one end of the outlet pipe (6) is fixedly connected to a fixing ring one (15), and one end of the L-shaped pipe (16) is fixedly connected to a fixing ring two (19). The fixing ring one (15) and the fixing ring two (19) are fitted together, and the side walls of the fixing ring one (15) and the fixing ring two (19) are provided with a locking component.
5. The reboiler for the distillation column according to claim 4, characterized in that: The locking assembly includes a first locking claw (17), a first locking ring (18), a second locking ring (20), and a second locking claw (21). The first locking claw (17) is fixedly connected to the side wall of the first fixing ring (15). The side wall of the first locking ring (18) is fixedly connected to the side wall of the first fixing ring (15). The side wall of the second locking ring (20) is fixedly connected to the side wall of the second fixing ring (19). The side wall of the second locking claw (21) is fixedly connected to the side wall of the second fixing ring (19).
6. The reboiler for a distillation column according to claim 5, characterized in that: The first clasp (17) engages with the second clasp (20), and the second clasp (21) engages with the first clasp (18).
7. The reboiler for a distillation column according to claim 6, characterized in that: The first clasp (17) and the first clasp (18) are alternately arranged, and the second clasp (20) and the second clasp (21) are alternately arranged.