Triethylamine distillation recovery kettle structure

By installing a water purification mechanism and a spiral guide channel in the triethylamine recovery vessel, the problem of cooling scale was solved, achieving efficient triethylamine recovery, reducing cleaning frequency, and improving the cooling effect inside the vessel.

CN224126581UActive Publication Date: 2026-04-17SICHUAN JILONG XINGRUI PHARM CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN JILONG XINGRUI PHARM CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing triethylamine recovery vessel generates a large amount of scale during the cooling process, which requires frequent cleaning and reduces the triethylamine recovery efficiency.

Method used

A water purification system is installed in the reactor, including a purification tank, a water purification cylinder, and a delivery pump. The purified cooling water is then delivered into the reactor. Combined with a spiral guide channel, the residence time of the coolant in the reactor is extended, reducing scale formation.

Benefits of technology

It effectively reduces scale formation inside the reactor, improves triethylamine recovery efficiency, reduces the frequency of manual cleaning, and maintains a high-efficiency cooling and recovery effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224126581U_ABST
    Figure CN224126581U_ABST
Patent Text Reader

Abstract

The utility model relates to a triethylamine distillation recovery kettle structure, which belongs to the technical field of triethylamine distillation and comprises a reaction kettle body and a sealing cover plate fixedly mounted at the top of the reaction kettle body, and a recovery liner extending into the reaction kettle body is mounted at the bottom of the sealing cover plate. A water quality purification mechanism capable of purifying cooling water is arranged on one side of the reaction kettle body and comprises a purification box fixedly mounted on one side of the reaction kettle body. According to the triethylamine distillation recovery kettle structure, cooling water can be preferentially conveyed into the purification box by arranging the purification box and the water inlet pipeline, then the cooling water can be purified and filtered by arranging the supporting plate and the water quality purification cylinder, so that impurities in the cooling water are removed, and the triethylamine can be recycled through the conveying pump and the conveying pipeline. The purified cooling water can be conveyed into the reaction kettle body, so that the triethylamine can be conveniently cooled and recycled, and the condition that water scales are generated in the reaction kettle body is greatly reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of triethylamine distillation technology, specifically to a triethylamine distillation recovery vessel structure. Background Technology

[0002] A triethylamine distillation recovery vessel is an important piece of equipment for recovering triethylamine. Utilizing the difference in boiling points between triethylamine and other impurities (such as moisture, reaction byproducts, etc.), the triethylamine is vaporized by heating, and then the vapor is cooled and condensed back into liquid, thus separating the triethylamine from the impurities and achieving the goal of recovering triethylamine. The distillation recovery operation of triethylamine can be carried out in this type of reaction vessel. The reaction vessel typically includes a heating system, a cooling system, a recovery system, and a control system to ensure that triethylamine can be effectively separated and recovered from the mixture.

[0003] Chinese utility model patent CN222490089U discloses a triethylamine recovery reactor, which includes an outer shell. Symmetrically distributed support legs are fixedly installed on both sides of the bottom of the outer shell. Several fixing blocks are fixedly installed on the outer surface of the outer shell, and an electric telescopic rod is fixedly installed on the top of each fixing block. This utility model utilizes the combined use of the outer shell, the inner liner of the recovery reactor, a top seat, an installation port, a sealing ring, an annular water storage plate, a flow guide, an electric telescopic rod, fixing blocks, a drain pipe, support legs, and a water inlet pipe. The reactor is cooled by pumping cooling water into the area above the annular water storage plate inside the outer shell. Because the gap between the bottom opening of the annular water storage plate and the outer surface of the inner liner of the recovery reactor is limited, the flow rate of the cooling water can be restricted. The annular design of the water storage plate guides the cooling water, forming a water curtain on the outer surface of the inner liner of the recovery reactor.

[0004] However, although this utility model makes it convenient for staff to clean the inside of the shell during use, it still produces a lot of scale during cooling, requiring staff to clean the inside of the shell frequently, which reduces the efficiency of triethylamine recovery and cannot meet production needs. Therefore, a triethylamine distillation recovery kettle structure is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a triethylamine distillation recovery vessel structure that directly reduces scale buildup inside the reaction vessel. This solves the problem that while existing recovery reaction vessels allow for easy cleaning of the interior, they still generate a large amount of scale during cooling, requiring frequent cleaning and thus reducing the efficiency of triethylamine recovery.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a triethylamine distillation recovery vessel structure, including a reaction vessel body and a sealing cover plate fixedly installed on the top of the reaction vessel body, wherein a recovery inner liner extending into the interior of the reaction vessel body is installed at the bottom of the sealing cover plate, and a water purification mechanism capable of purifying cooling water is provided on one side of the reaction vessel body.

[0007] The water purification mechanism includes a purification box fixedly installed on one side of the reactor body. A protective cover is installed on the top of the purification box. A support plate is slidably connected inside the purification box. A connecting rod is fixedly connected between the support plate and the protective cover. A water purification cylinder extending to the bottom of the support plate is installed on the top of the support plate.

[0008] Furthermore, a delivery pump is fixedly installed on the top of the protective cover plate, and a connecting pipe extending into the interior of the purification tank is fixedly connected to the input end of the delivery pump, and a delivery pipe extending into the interior of the reactor body is fixedly connected to the output end of the delivery pump.

[0009] Furthermore, a water inlet pipe is fixedly connected to the side of the purification tank away from the reactor body, and a drain pipe is fixedly connected to the side of the reactor body away from the purification tank.

[0010] Furthermore, a spiral guide groove is formed on the outer surface of the recycling liner, and a feed pipe extending to the bottom of the reactor body is fixedly connected to the bottom of the recycling liner.

[0011] Furthermore, a support frame capable of supporting the recovery liner is fixedly installed on the inner bottom wall of the reactor body, and a buffer gasket is fixedly connected to the side of the support frame near the recovery liner.

[0012] Furthermore, an installation sleeve is fixedly connected to the lower surface of the sealing cover plate. The installation sleeve is fitted onto the outside of the recycling inner liner, and a fixing bolt is installed between the installation sleeve and the recycling inner liner.

[0013] Furthermore, a thermometer extending into the inner liner of the recycling tank is fixedly installed on the top of the sealing cover, and a feed pipe communicating with the recycling tank is fixedly connected to the top of the sealing cover.

[0014] Furthermore, the bottom of the reactor body is fixedly connected with four support legs, which are evenly distributed at the bottom of the reactor body.

[0015] Compared with the prior art, the present invention provides a triethylamine distillation recovery vessel structure, which has the following beneficial effects:

[0016] 1. The triethylamine distillation recovery vessel structure, through the installation of a purification tank and an inlet water pipe, allows cooling water to be preferentially delivered to the purification tank. Then, through the installation of a support plate and a water purification cylinder, the cooling water is purified and filtered to remove impurities. The purified cooling water is then delivered to the reactor body via a pump and pipeline, facilitating the cooling and recovery of triethylamine. This significantly reduces the formation of scale inside the reactor body. Operators only need to replace the water purification cylinder, thus avoiding any impact on the efficiency of triethylamine distillation recovery.

[0017] 2. The triethylamine distillation recovery vessel structure, through the installation of a feed pipe, can collect and process the cooled triethylamine in the recovery inner tank. At the same time, through the installation of a spiral guide channel, the residence time of the coolant on the surface of the recovery inner tank can be increased, thereby achieving a more thorough cooling and recovery effect. This solves the problem that although existing recovery reactors are convenient for workers to clean the inside of the outer shell, they still produce a large amount of scale during cooling, requiring frequent cleaning of the inside of the outer shell, which reduces the efficiency of triethylamine recovery. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the water purification mechanism of this utility model;

[0021] Figure 4 This is a front view of the structure of the recyclable inner liner of this utility model.

[0022] In the diagram: 1. Reactor body; 2. Sealing cover; 3. Recovery liner; 4. Purification tank; 5. Protective cover; 6. Support plate; 7. Connecting rod; 8. Water purification cylinder; 9. Transfer pump; 10. Connecting pipe; 11. Transfer pipe; 12. Water inlet pipe; 13. Thermometer; 14. Drainage pipe; 15. Spiral guide channel; 16. Mounting sleeve; 17. Feed pipe; 18. Support frame; 19. Feed pipe; 20. Support leg. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 3 The triethylamine distillation recovery vessel structure in this embodiment includes a reaction vessel body 1 and a sealing cover plate 2 fixedly installed on the top of the reaction vessel body 1. A recovery inner liner 3 extending into the interior of the reaction vessel body 1 is installed at the bottom of the sealing cover plate 2. A water purification mechanism capable of purifying cooling water is provided on one side of the reaction vessel body 1. The water purification mechanism includes a purification box 4 fixedly installed on one side of the reaction vessel body 1. A protective cover plate 5 is installed on the top of the purification box 4. A support plate 6 is slidably connected inside the purification box 4. A connecting rod 7 is fixedly connected between the support plate 6 and the protective cover plate 5. A water purification cylinder 8 extending to the bottom of the support plate 6 is installed on the top of the support plate 6.

[0025] Specifically, a delivery pump 9 is fixedly installed on the top of the protective cover plate 5. A connecting pipe 10 extending into the interior of the purification box 4 is fixedly connected to the input end of the delivery pump 9, and a delivery pipe 11 extending into the interior of the reactor body 1 is fixedly connected to the output end of the delivery pump 9.

[0026] It should be noted that a water inlet pipe 12 is fixedly connected to the side of the purification box 4 away from the reactor body 1, and a drain pipe 14 is fixedly connected to the side of the reactor body 1 away from the purification box 4. Positioning blocks extending into the interior of the purification box 4 are fixedly connected to both sides of the support plate 6, and positioning grooves that match the positioning blocks are provided on the inner wall of the purification box 4.

[0027] It should be noted that the outer wall of the support plate 6 is fitted to the inner wall of the purification tank 4, and the water purification cylinder 8 is a salt-free scale-inhibiting filter cylinder. Through special media (such as copper-zinc alloy and activated carbon) inside the filter cylinder, the crystallization form of calcium and magnesium ions is changed, preventing them from forming hard scale. This technology does not require salt or electricity and can directly intercept and disperse hardness components in the water.

[0028] Please see Figure 1 , Figure 2 and Figure 4 In this embodiment, a spiral guide groove 15 is provided on the outer surface of the recycling inner liner 3, and a feed pipe 17 extending to the bottom of the reactor body 1 is fixedly connected to the bottom of the recycling inner liner 3. A support frame 18 that can support the recycling inner liner 3 is fixedly installed on the inner bottom wall of the reactor body 1, and a buffer gasket is fixedly connected to the side of the support frame 18 near the recycling inner liner 3.

[0029] Specifically, an installation sleeve 16 is fixedly connected to the lower surface of the sealing cover plate 2. The installation sleeve 16 is sleeved on the outside of the recycling inner liner 3, and a fixing bolt is installed between the installation sleeve 16 and the recycling inner liner 3.

[0030] It should be noted that by setting up the discharge pipe 17, the cooled triethylamine in the recycling inner liner 3 can be collected and processed. At the same time, by setting up the spiral guide channel 15, the residence time of the coolant on the surface of the recycling inner liner 3 can be increased, thereby achieving the effect of full cooling and recycling.

[0031] Please see Figure 1 and Figure 2 In this embodiment, a thermometer 13 extending into the inner liner 3 is fixedly installed on the top of the sealing cover plate 2, and a feed pipe 19 communicating with the inner liner 3 is fixedly connected to the top of the sealing cover plate 2. A support leg 20 is fixedly connected to the bottom of the reactor body 1. There are four support legs 20, and the four support legs 20 are evenly distributed at the bottom of the reactor body 1.

[0032] The working principle of the above embodiments is as follows:

[0033] First, the staff delivers the coolant to the purification tank 4 through the water inlet pipe 12. At this time, the water purification cylinder 8 can purify the coolant. The purified coolant will enter the top of the support plate 6. Then, the delivery pump 9 is started to deliver the purified coolant to the reactor body 1. The coolant will flow inside the reactor body 1 and come into contact with the outer surface of the recovery inner tank 3, thereby achieving the effect of cooling and recovery. After that, the coolant is discharged through the drain pipe 14.

[0034] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0035] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A triethylamine distillation recovery kettle structure comprising a reaction kettle body and a sealing cover plate fixedly installed on the top of the reaction kettle body, characterized in that: The bottom of the sealing cover is equipped with a recovery inner liner that extends into the interior of the reactor body, and a water purification mechanism capable of purifying cooling water is provided on one side of the reactor body. The water purification mechanism includes a purification box fixedly installed on one side of the reactor body. A protective cover is installed on the top of the purification box. A support plate is slidably connected inside the purification box. A connecting rod is fixedly connected between the support plate and the protective cover. A water purification cylinder extending to the bottom of the support plate is installed on the top of the support plate.

2. The structure of a distillation recovery kettle for triethylamine according to claim 1, wherein: A delivery pump is fixedly installed on the top of the protective cover. A connecting pipe extending into the interior of the purification tank is fixedly connected to the input end of the delivery pump, and a delivery pipe extending into the interior of the reactor body is fixedly connected to the output end of the delivery pump.

3. The distillation recovery pot structure of triethylamine according to claim 1, characterized in that: A water inlet pipe is fixedly connected to the side of the purification tank away from the reactor body, and a drain pipe is fixedly connected to the side of the reactor body away from the purification tank.

4. The distillation recovery pot structure of triethylamine according to claim 1, characterized in that: A spiral guide groove is provided on the outer surface of the recycling liner, and a feed pipe extending to the bottom of the reactor body is fixedly connected to the bottom of the recycling liner.

5. The distillation recovery pot structure of triethylamine according to claim 1, characterized in that: A support frame is fixedly installed on the inner bottom wall of the reactor body to support the recovery liner, and a buffer gasket is fixedly connected to the side of the support frame near the recovery liner.

6. The distillation recovery pot structure of triethylamine according to claim 1, characterized in that: An installation sleeve is fixedly connected to the lower surface of the sealing cover plate. The installation sleeve is fitted onto the outside of the recycling inner liner, and a fixing bolt is installed between the installation sleeve and the recycling inner liner.

7. The distillation recovery pot structure of triethylamine according to claim 1, characterized in that: A thermometer extending into the inner liner of the recycling tank is fixedly installed on the top of the sealing cover, and a feed pipe communicating with the recycling tank is fixedly connected to the top of the sealing cover.

8. The distillation recovery pot structure of triethylamine according to claim 1, characterized in that: The bottom of the reactor body is fixedly connected to four support legs, which are evenly distributed at the bottom of the reactor body.

Citation Information

Patent Citations

  • Reaction kettle for recycling triethylamine

    CN222490089U