A distillation column heat energy recovery and utilization device

Abstract

This invention provides a distillation column heat energy recovery and utilization device, relating to the field of distillation column technology, including a base plate, a distillation column body, a casing, and a cover plate. By setting up a serpentine tube and casing structure, this invention allows the heat energy carried by methanol vapor flowing inside the serpentine tube to be transferred through the tube wall to the cold water inside the casing, recovering the heat energy that would otherwise be wasted. The heated water can be used in the production process where hot water is needed, achieving secondary utilization of heat energy, significantly reducing energy loss, and achieving energy saving. This effectively solves the problem of serious energy waste in traditional distillation columns. Simultaneously, the quick-release mechanism makes the installation and removal of the cover plate more convenient, facilitating the cleaning of the serpentine tube inside the casing. This prevents the serpentine tube from being affected by dirt accumulation, ensuring the continuous effectiveness of heat energy recovery and overcoming the shortcomings of traditional devices where inconvenient maintenance leads to a decline in heat energy recovery efficiency.

Description

Technical Field

[0001] This utility model relates to the field of distillation column technology, and in particular to a distillation column heat energy recovery and utilization device. Background Technology

[0002] In the production process of dephenolized cottonseed protein, methanol, as a key extractant, plays a crucial role in removing toxic substances such as free gossypol from cottonseed, ensuring the safety and edibility of the final product. The distillation column, as the core equipment for methanol purification, directly determines the stability and economic efficiency of the entire production chain.

[0003] However, during the operation of traditional distillation columns, the high-concentration methanol vapor discharged from the top of the column carries a large amount of heat energy. This heat energy is usually released directly into the environment through the condensation system without being effectively recovered and utilized, resulting in serious energy loss. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a distillation column heat energy recovery and utilization device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a distillation column heat energy recovery and utilization device, comprising a base plate, a distillation column body, a housing, and a cover plate. A steam inlet pipe is fixedly installed on the outer wall of the distillation column body, and a material inlet pipe is fixedly installed on the outer wall of the distillation column body. A discharge pipe is fixedly installed on the top of the distillation column body. A first pipe is fixedly installed at the end of the discharge pipe away from the distillation column body. A serpentine pipe is fixedly installed at the end of the first pipe away from the discharge pipe. A second pipe is fixedly installed at the end of the serpentine pipe away from the first pipe. A water inlet pipe is fixedly installed on one side of the housing. The housing is located near the water inlet. A water outlet pipe is fixedly installed on one side of the pipe. A rectangular frame is fixedly installed inside the box. A sealing gasket is fixedly installed on the top of the rectangular frame. Limiting holes are symmetrically opened on the top of the box and the cover plate. A quick-release mechanism is installed on the top of the base plate. The quick-release mechanism includes a rotating shaft. A fixing post is fixedly installed on the top of the rotating shaft. A sliding groove is opened through the outer wall of the fixing post. A threaded rod is rotatably connected inside the fixing post. A sliding plate is threadedly connected to the outer wall of the threaded rod. A connecting plate is fixedly installed on one end of the sliding plate. Limiting posts are symmetrically fixedly installed on the bottom of the connecting plate. A handle is fixedly installed on the top of the threaded rod.

[0006] Preferably, both pipe one and pipe two are fixedly connected to the box body.

[0007] Preferably, the rotating shaft is located at the top of the substrate, and the rotating shaft is rotatably connected to the substrate.

[0008] Preferably, the sliding plate is slidably connected to the sliding groove, and the limiting post is slidably connected to the limiting hole.

[0009] Preferably, the distillation column body is located on top of the substrate, and the distillation column body is fixedly connected to the substrate.

[0010] Preferably, the housing is located on top of the substrate, the housing is fixedly connected to the substrate, and the serpentine tube is located inside the housing.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] In this invention, by setting up a serpentine tube and a box structure, the heat energy carried by methanol vapor flowing inside the serpentine tube can be transferred to the cold water inside the box through the tube wall, recovering the heat energy that would otherwise be wasted. The heated water can be used in the production process where hot water is needed, realizing the secondary utilization of heat energy, significantly reducing energy loss, achieving the goal of energy saving, and effectively solving the problem of serious energy waste in traditional distillation towers. At the same time, the quick-release mechanism makes the disassembly and assembly of the cover plate more convenient, facilitating the cleaning of the serpentine tube inside the box. This avoids the serpentine tube from being affected by the accumulation of dirt, ensuring the continuous effectiveness of heat energy recovery, further improving energy utilization efficiency, and ensuring the stability of energy saving effect from a long-term operation perspective. It also makes up for the defects of traditional devices that lead to a decline in heat energy recovery effect due to inconvenient maintenance. Attached Figure Description

[0013] Figure 1 This utility model provides an overall structural schematic diagram of a distillation column heat energy recovery and utilization device;

[0014] Figure 2 This utility model provides a partial structural cross-sectional schematic diagram of a distillation column heat energy recovery and utilization device;

[0015] Figure 3 This invention provides an exploded structural diagram of a distillation tower heat energy recovery and utilization device.

[0016] Figure 4 This utility model proposes a distillation column heat energy recovery and utilization device. Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This utility model provides a schematic diagram of a quick-release mechanism for a distillation tower heat energy recovery and utilization device.

[0018] Legend: 1. Base plate; 2. Distillation column body; 3. Box; 4. Cover plate; 5. Steam inlet pipe; 6. Material inlet pipe; 7. Discharge pipe; 8. Pipe 1; 9. Serpentine pipe; 10. Pipe 2; 11. Water inlet pipe; 12. Water outlet pipe; 13. Rectangular frame; 14. Sealing gasket; 15. Limiting hole; 16. Quick release mechanism; 161. Rotating shaft; 162. Fixed column; 163. Slide groove; 164. Threaded rod; 165. Sliding plate; 166. Connecting plate; 167. Limiting column; 168. Rotary handle. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example: Figures 1-5As shown, this utility model provides a technical solution: a distillation column heat energy recovery and utilization device, including a base plate 1, a distillation column body 2, a box body 3, and a cover plate 4. A steam inlet pipe 5 is fixedly installed on the outer wall of the distillation column body 2, a material inlet pipe 6 is fixedly installed on the outer wall of the distillation column body 2, a discharge pipe 7 is fixedly installed on the top of the distillation column body 2, a pipe 8 is fixedly installed at the end of the discharge pipe 7 away from the distillation column body 2, a serpentine pipe 9 is fixedly installed at the end of the pipe 8 away from the discharge pipe 7, and a pipe 10 is fixedly installed at the end of the serpentine pipe 9 away from the pipe 8. A water inlet pipe 11 is fixedly installed on one side of the box body 3, a water outlet pipe 12 is fixedly installed on the side of the box body 3 near the water inlet pipe 11, a rectangular frame 13 is fixedly installed inside the box body 3, a sealing gasket 14 is fixedly installed on the top of the rectangular frame 13, limit holes 15 are symmetrically opened on the top of the box body 3 and the cover plate 4, and a quick-release mechanism 16 is installed on the top of the base plate 1. The quick-release mechanism 16 includes a rotating shaft 1. 61. A fixed column 162 is fixedly installed at the top of the rotating shaft 161. A groove 163 is opened through the outer wall of the fixed column 162. A threaded rod 164 is rotatably connected inside the fixed column 162. A sliding plate 165 is threadedly connected to the outer wall of the threaded rod 164. A connecting plate 166 is fixedly installed at one end of the sliding plate 165. Limiting columns 167 are symmetrically fixedly installed at the bottom of the connecting plate 166. A handle 168 is fixedly installed at the top of the threaded rod 164. Pipe 1 8 and pipe 2 10 are both fixedly connected to the housing 3. The rotating shaft 161 is located at the top of the base plate 1 and is rotatably connected to the base plate 1. The sliding plate 165 is slidably connected to the groove 163. The limiting column 167 is slidably connected to the limiting hole 15. The distillation column body 2 is located at the top of the base plate 1 and is fixedly connected to the base plate 1. The housing 3 is located at the top of the base plate 1 and is fixedly connected to the base plate 1. The serpentine tube 9 is located inside the housing 3.

[0022] In this embodiment, by setting up structures such as the serpentine tube 9 and the housing 3, the heat energy carried by methanol vapor flowing in the serpentine tube 9 can be transferred to the cold water in the housing 3 through the tube wall, thus recovering the heat energy that would otherwise be wasted. The heated water can be used in the production process where hot water is needed, realizing the secondary utilization of heat energy, significantly reducing energy loss, achieving the goal of energy saving, and effectively solving the problem of serious energy waste in traditional distillation towers. At the same time, the quick-release mechanism 16 makes the disassembly and assembly of the cover plate 4 more convenient, facilitating the cleaning of the serpentine tube 9 inside the housing 3. This can prevent the serpentine tube 9 from being affected by the accumulation of dirt, ensuring the continuous effectiveness of heat energy recovery, further improving energy utilization efficiency, ensuring the stability of energy saving effect from a long-term operation perspective, and making up for the defects of traditional devices that lead to a decline in heat energy recovery effect due to inconvenient maintenance.

[0023] The working principle of this embodiment is as follows: During use, the distillation column body 2 receives the material to be processed through the material inlet pipe 6, while steam is introduced through the steam inlet pipe 5 to drive the distillation process. After distillation and separation, the high-concentration methanol vapor generated at the top of the column carries a large amount of heat energy and enters the pipe 8 through the top outlet pipe 7. It then flows along the pipe 8 into the serpentine tube 9 located inside the box body 3. At this time, cold water enters the box body 3 through the water inlet pipe 11 on one side of the box body 3. Since the serpentine tube 9 is located inside the box body 3, its outer wall is in direct contact with the cold water inside the box body 3. When the methanol vapor flows in the serpentine tube 9, the heat energy it carries is transferred to the cold water inside the box body 3 through the pipe wall of the serpentine tube 9, causing the cold water to absorb heat and its temperature to rise, thus realizing the recovery of the steam waste heat. The heated hot water can be discharged through the water outlet pipe 12 and used in the production process where hot water is needed (such as material preheating), achieving the purpose of energy saving. After the heat exchange is completed, the methanol vapor in the serpentine tube 9 condenses into liquid due to heat release and is discharged through the second pipe 10 and enters the subsequent processing steps. When it is necessary to clean the dirt on the serpentine tube 9 inside the housing 3, the handle 168 on the quick-release mechanism 16 can be rotated. The handle 168 drives the threaded rod 164 to rotate inside the fixed post 162. Since the sliding plate 165 is threadedly connected to the threaded rod 164, and the sliding plate 165 slides with the fixed post 162 through the slide groove 163, the rotation of the threaded rod 164 will be converted into the upward sliding of the sliding plate 165 along the slide groove 163. When the sliding plate 165 moves upward, it drives the connecting plate 166 to rise synchronously, so that the limiting post 167 at the bottom of the connecting plate 166 is pulled out from the limiting hole 15 at the top of the housing 3 and the cover plate 4, releasing the fixing restriction on the cover plate 4. Then, it can be rotated... Rotate the pivot 161 to rotate the fixing post 162 and related components to a position offset from directly above the cover plate 4. At this point, the cover plate 4 can be removed upwards. After the cover plate 4 is removed, the serpentine tube 9 inside the housing 3 is fully exposed, making it easy to clean the dirt. After cleaning, cover the cover plate 4 and press it against the sealing gasket 14 at the top of the rectangular frame 13. The sealing gasket 14 can ensure the sealing of the cover plate 4 and the housing 3 after they are closed. Then rotate the pivot 161 to restore it to its original position. After it is restored, rotate the handle 168 in the opposite direction to make the threaded rod 164 drive the sliding plate 165 to move downwards. The limiting post 167 is reinserted into the limiting hole 15, and the cover plate 4 can be fixed again, completing the assembly after cleaning.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rectifying tower heat energy recycling device, comprising a base plate (1), a rectifying tower body (2), a box (3) and a cover plate (4), characterized in that: A steam inlet pipe (5) is fixedly installed on the outer wall of the distillation column body (2), a material inlet pipe (6) is fixedly installed on the outer wall of the distillation column body (2), a discharge pipe (7) is fixedly installed on the top of the distillation column body (2), a pipe first (8) is fixedly installed on the end of the discharge pipe (7) away from the distillation column body (2), a serpentine pipe (9) is fixedly installed on the end of the pipe first (8) away from the discharge pipe (7), a pipe second (10) is fixedly installed on the end of the serpentine pipe (9) away from the pipe first (8), a water inlet pipe (11) is fixedly installed on one side of the box body (3), a water outlet pipe (12) is fixedly installed on the side of the box body (3) near the water inlet pipe (11), a rectangular frame (13) is fixedly installed inside the box body (3), a sealing gasket (14) is fixedly installed on the top of the rectangular frame (13), limit holes (15) are symmetrically opened on the top of the box body (3) and the cover plate (4), and a quick-release mechanism (16) is installed on the top of the base plate (1). The quick-release mechanism (16) includes a rotating shaft (161), a fixed post (162) is fixedly installed at the top of the rotating shaft (161), a sliding groove (163) is opened through the outer wall of the fixed post (162), a threaded rod (164) is rotatably connected inside the fixed post (162), a sliding plate (165) is threadedly connected to the outer wall of the threaded rod (164), a connecting plate (166) is fixedly installed at one end of the sliding plate (165), limit posts (167) are symmetrically fixedly installed at the bottom of the connecting plate (166), and a handle (168) is fixedly installed at the top of the threaded rod (164).

2. The distillation column heat energy recovery and utilization device according to claim 1, characterized in that: Both pipe one (8) and pipe two (10) are fixedly connected to the box body (3).

3. The distillation column heat energy recovery and utilization device according to claim 1, characterized in that: The rotating shaft (161) is located on the top of the substrate (1), and the rotating shaft (161) is rotatably connected to the substrate (1).

4. The distillation column heat energy recovery and utilization device according to claim 1, characterized in that: The sliding plate (165) is slidably connected to the sliding groove (163), and the limiting post (167) is slidably connected to the limiting hole (15).

5. The distillation column heat energy recovery and utilization device according to claim 1, characterized in that: The distillation column body (2) is located on top of the substrate (1), and the distillation column body (2) is fixedly connected to the substrate (1).

6. The distillation column heat energy recovery and utilization device according to claim 1, characterized in that: The housing (3) is located on top of the substrate (1), and the housing (3) is fixedly connected to the substrate (1). The serpentine tube (9) is located inside the housing (3).

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