A rapid ethylene glycol recovery system

By designing structures such as annular frames, filter screens, and activated carbon filter plates, the problem of ethylene glycol being difficult to discharge into storage tanks after filtration in the ethylene glycol recovery system was solved, achieving rapid recovery and efficient storage of ethylene glycol.

CN224672280UActive Publication Date: 2026-08-25SUQIAN YIDA NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202522129407.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-08-25
Estimated Expiration
2035-10-09

AI Technical Summary

Technical Problem

Existing rapid ethylene glycol recovery systems do not allow for the direct discharge of recovered ethylene glycol into the recovery storage tank after filtration, increasing the workload for personnel.

Method used

A filtration system comprising an annular frame, a filter screen, a porous filter plate, and an activated carbon filter plate was designed. Combined with a limiting frame, a funnel, and a connecting plate, the system enables the filtered ethylene glycol to be directly discharged into a recovery storage tank and sealed with a sealing cap.

Benefits of technology

The process of ethylene glycol recovery has been simplified, reducing the workload of personnel and improving recovery efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of ethylene glycol rapid recovery systems, including installation base, filter cartridge, support base plate, the filter cartridge top outer thread place screw thread connection cylinder cover inner thread place, the cylinder cover inner top surface two ends are respectively fixedly connected vertical rod one. The utility model is through being provided with annular frame one, filter screen plate, vertical rod one, annular frame two, porous filter plate, vertical rod three, annular frame three, activated carbon filter plate etc., can filter the impurity suspended particles in the recovered ethylene glycol, and filter screen plate, porous filter plate, activated carbon filter plate are convenient to disassemble and clean, by being provided with limiting frame, hopper, connecting plate, positioning rod, connecting block, positioning hole slot etc., it is convenient to move recovery liquid storage tank and the position of recovery liquid storage tank is positioned so that hopper is located directly below liquid outlet pipe, it is convenient to directly discharge into the recovery storage tank of ethylene glycol after filtering recovery ethylene glycol, reduce personnel workload, after recovery is completed, it can be sealed by sealing cover screwing on, improve efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of ethylene glycol recovery technology, specifically to a rapid ethylene glycol recovery system. Background Technology

[0002] Ethylene glycol, also known as glycol or 1,2-ethylene glycol, abbreviated as EG, is the simplest diol. It is a colorless, odorless, sweet-tasting liquid, toxic to animals, with a lethal dose for humans of approximately 1.6 g / kg. Ethylene glycol is miscible with water and acetone, but its solubility in ethers is low. It is used as a solvent, antifreeze, and a raw material for the synthesis of polyester. The polymer polyethylene glycol (PEG) is a phase transfer catalyst and is also used in cell fusion. Used ethylene glycol contains impurities and requires filtration during recycling.

[0003] For example, Chinese utility model patent CN221207087U discloses an ethylene glycol recovery filter, specifically relating to the field of ethylene glycol recovery technology. The filter includes: a filter housing with a rotating tube rotatably connected inside, and three filter screens of different particle sizes fixedly installed at the inner end of the rotating tube; a collection frame with three discharge ports at the bottom of the filter housing and multiple connecting ports on the rotating tube; a groove with a movable sealing plate on one side of the collection frame; and a connecting pipe with a valve fixedly installed on it, and a filter screen frame at one end. This utility model uses a movable sealing plate to seal the top of the collection frame, allowing the filtered residue to be cleaned from the collection frame during ethylene glycol filtration. This avoids the need to open the filter housing to clean the residue, and the cleaning process does not affect the ethylene glycol filtration process, resulting in high ethylene glycol filtration efficiency and good overall performance.

[0004] However, the existing rapid ethylene glycol recovery system discharges the filtered recovered ethylene glycol through the outlet pipe, which is inconvenient to directly discharge the filtered recovered ethylene glycol into the ethylene glycol recovery storage tank, increasing the workload of personnel.

[0005] Therefore, we propose a rapid ethylene glycol recovery system to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a rapid ethylene glycol recovery system to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an ethylene glycol rapid recovery system, comprising a mounting base, a filter cylinder, and a supporting base plate. The external thread at the top of the filter cylinder is threaded to the internal thread of the cylinder cover. Vertical rod 1 is fixed to both ends of the inner top surface of the cylinder cover. An annular frame 1 is fixed to the bottom end of vertical rod 1. A filter screen plate is fixed to the bottom of the annular frame 1. Vertical rod 2 is fixed to both ends of the bottom surface of the annular frame 1. An annular frame 2 is fixed to the bottom end of vertical rod 2. A porous filter plate is fixed to the bottom of the annular frame 2. Vertical rod 3 is fixed to both ends of the bottom surface of the annular frame 2. An annular frame 3 is fixed to the bottom end of vertical rod 3. An activated carbon filter plate is fixed to the bottom of the annular frame 3. An outlet pipe is fixed to the bottom surface of the filter cylinder. A recovery storage tank is placed on the supporting base plate. An injection pipe is fixed to the top of the recovery storage tank. The internal thread of the injection pipe is threaded to the external thread at the bottom of the funnel. A connecting plate is fixed to the top surface of the funnel. Positioning rods are fixed to both ends of one side of the connecting plate. Connecting blocks are fixed to both sides of the outlet pipe. A positioning hole groove is opened on one side of the connecting block. The positioning rod is slidably connected to the positioning hole groove.

[0008] Preferably, a push rod is fixedly connected to the top surface of the support base plate, and multiple brake casters are fixedly installed at the bottom of the support base plate.

[0009] Preferably, a centrifugal pump is fixedly connected to the top of the mounting base, an input pipe is fixedly connected to one side of the centrifugal pump, the input pipe flange is connected to the liquid inlet pipe, an output pipe is fixedly connected to the top of the centrifugal pump, the output pipe flange is connected to one end of the delivery pipe, the other end of the delivery pipe is fixedly connected to one side of the filter cylinder, and the delivery pipe and the filter cylinder are internally connected.

[0010] Preferably, the handle is fixed to the top surface of the cylinder cover, and the annular frame one, annular frame two, and annular frame three contact the inner wall of the filter cylinder.

[0011] Preferably, a flow guide block is fixedly connected to the bottom of the filter cylinder, and a support block is fixedly connected to the outer surface of the filter cylinder.

[0012] Preferably, the liquid outlet pipe and the filter cylinder are internally connected, the liquid outlet pipe is equipped with a valve, the top surface of the support base plate is fixed to a limiting frame, and the base of the recovery storage tank contacts the limiting frame.

[0013] Preferably, the injection pipe and the recovery storage tank are internally connected, a limiting ring plate is fixed to the outer surface of the funnel, the bottom surface of the limiting ring plate contacts the top surface of the injection pipe, and the external thread of the injection pipe is threaded to the internal thread of the sealing cap.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention, by incorporating a ring frame, a filter screen, a vertical rod, a ring frame, a porous filter plate, a vertical rod, a ring frame, and an activated carbon filter plate, can filter suspended particles of impurities in recovered ethylene glycol. The filter screen, porous filter plate, and activated carbon filter plate are easily disassembled for cleaning. The inclusion of a limiting frame, funnel, connecting plate, positioning rod, connecting block, and positioning slots facilitates the movement and positioning of the recovery storage tank, ensuring the funnel is directly below the outlet pipe. This allows for direct discharge of the filtered recovered ethylene glycol into the recovery storage tank, reducing workload. After recovery, the tank can be sealed with a cap, improving efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the top cross-sectional structure of a portion of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 This is a schematic diagram of the structure of the sealing cap after connection.

[0016] In the diagram: 1. Mounting base; 2. Centrifugal pump; 3. Input pipe; 4. Output pipe; 5. Liquid inlet pipe; 6. Delivery pipe; 7. Filter cartridge; 8. Cylinder cover; 9. Handle; 10. Vertical rod one; 11. Annular frame one; 12. Filter screen plate; 13. Vertical rod two; 14. Annular frame two; 15. Porous filter plate; 16. Vertical rod three; 17. Annular frame three; 18. Activated carbon filter plate; 19. Guide block; 20. Liquid outlet pipe; 21. Valve; 22. Support base plate; 23. Push rod; 24. Brake caster wheel; 25. Limiting frame; 26. Recovery storage tank; 27. Injection pipe; 28. Funnel; 281. Limiting ring plate; 29. ​​Sealing cover; 30. Connecting plate; 31. Positioning rod; 32. Connecting block; 321. Positioning hole groove; 33. Support block. Detailed Implementation

[0017] 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.

[0018] Example 1: Please see Figure 1-5This is the first embodiment of the present invention, which provides a technical solution: an ethylene glycol rapid recovery system, including a mounting base 1, a filter cylinder 7, and a supporting base plate 22. The external thread at the top of the filter cylinder 7 is threaded to the internal thread of the cylinder cover 8, making it easy to unscrew the cylinder cover 8. Vertical rods 10 are fixed to both ends of the inner top surface of the cylinder cover 8, and an annular frame 11 is fixed to the bottom of the vertical rods 10. A filter screen plate 12 is fixed to the bottom of the annular frame 11, which can filter large particulate impurities. Vertical rods 23 are fixed to both ends of the bottom surface of the annular frame 11, and an annular frame 24 is fixed to the bottom of the vertical rods 213. A porous filter plate 15 is fixed to the bottom of the annular frame 24, which can filter suspended particles and organic matter. Vertical rods 36 are fixed to both ends of the bottom surface of the annular frame 24, and an annular frame 37 is fixed to the bottom of the vertical rods 316. An activated carbon filter plate 18 is fixed to the bottom of the annular frame 37, which can further adsorb harmful substances. An outlet pipe 20 is fixed to the bottom surface of the filter cylinder 7. A recovery storage tank 26 is placed on the support base plate 22. A liquid injection pipe 27 is fixed to the top of the recovery storage tank 26. The internal thread of the liquid injection pipe 27 is threaded to the external thread of the bottom of the funnel 28. A connecting plate 30 is fixed to the top surface of the funnel 28. Positioning rods 31 are fixed to both ends of one side of the connecting plate 30. Connecting blocks 32 are fixed to both sides of the liquid outlet pipe 20. A positioning hole groove 321 is opened on one side of the connecting block 32. The positioning rods 31 are slidably connected to the positioning hole groove 321. When positioning the recycling tank 26, the external thread of the funnel 28 can be screwed into the internal thread of the injection pipe 27, so that the bottom surface of the limiting ring plate 281 on the funnel 28 contacts the bottom surface of the injection pipe 27, thus limiting the position of the funnel 28. Then, the support base plate 22 can be moved by pushing the push rod 23 through the brake caster 24, so that the positioning rod 31 on one side of the connecting plate 30 on the funnel 28 can slide into the positioning hole groove 321 on one side of the connecting block 32, so that one end of the positioning rod 31 abuts against one side of the positioning hole groove 321. Then, the brake pad on the brake caster 24 can be pressed to lock the brake caster 24, thus fixing the position of the support base plate 22, thereby fixing the position of the recycling tank 26, so that the funnel 28 is directly below the outlet pipe 20.

[0019] Example 2: Please see Figure 1-5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. A push rod 23 is fixedly connected to the top surface of the support base plate 22 to facilitate pushing the support base plate 22. Multiple brake casters 24 are fixedly installed at the bottom of the support base plate 22.

[0020] The centrifugal pump 2 is fixed to the top of the mounting base 1. The mounting base 1 is provided with mounting holes to facilitate the fixing of the mounting base 1 in a suitable position. The input pipe 3 is fixed to one side of the centrifugal pump 2. The input pipe 3 is flanged and connected to the liquid inlet pipe 5. The liquid inlet pipe 5 is connected to the discharge pipe of ethylene glycol. The output pipe 4 is fixed to the top of the centrifugal pump 2. The output pipe 4 is flanged and connected to one end of the delivery pipe 6. The other end of the delivery pipe 6 is fixed to one side of the filter cylinder 7. The delivery pipe 6 and the filter cylinder 7 are internally connected.

[0021] The top surface of the cylinder cover 8 is fixed with the handle 9, and the annular frame 11, annular frame 2 14, and annular frame 3 17 contact the inner wall of the filter cylinder 7.

[0022] A guide block 19 is fixed to the bottom of the filter cartridge 7 to facilitate the flow of filtered ethylene glycol to the outlet pipe 20. A support block 33 is fixed to the outer surface of the filter cartridge 7 to support the filter cartridge 7.

[0023] The outlet pipe 20 and the filter cylinder 7 are internally connected. The outlet pipe 20 is equipped with a valve 21. The top surface of the support base plate 22 is fixed with a limiting frame 25, which can limit the position of the recycling storage tank 26 when it is placed to prevent it from shifting. The base of the recycling storage tank 26 contacts the limiting frame 25.

[0024] The injection pipe 27 and the recovery storage tank 26 are internally connected. A limiting ring plate 281 is fixed to the outer surface of the funnel 28. The bottom surface of the limiting ring plate 281 contacts the top surface of the injection pipe 27. The external thread of the injection pipe 27 is threaded to the internal thread of the sealing cap 29. After filtration and recovery are completed, the brake pads can be released, and the support base plate 22 can be pushed by the push rod 23. The recovery storage tank 26 moves accordingly, and the positioning rod 31 on one side of the connecting plate 30 moves and slides out of the positioning hole groove 321 on the connecting block 32. The funnel 28 can be unscrewed from the internal thread of the injection pipe 27, and then the internal thread of the sealing cap 29 can be screwed into the external thread of the injection pipe 27 to seal.

[0025] Please see Figure 1-5When using this utility model, open valve 21 on the outlet pipe 20, connect the inlet pipe 5 to the discharge pipe of the recovered ethylene glycol, connect the centrifugal pump 2 to an external power source, and start the centrifugal pump 2 to transport the recovered ethylene glycol through the inlet pipe 5 to the conveying pipe 6 and then to the filter cylinder 7. The recovered ethylene glycol undergoes multi-layer filtration through the filter screen plate 12, the porous filter plate 15, and the activated carbon filter plate 18, which can filter out impurities and suspended particles in the recovered ethylene glycol. The annular frame 11, annular frame 24, and annular frame 317 are set to collect the filtered impurities. The filtered ethylene glycol is directly discharged into the funnel 28 through the outlet pipe 20 and directly discharged into the recovery storage tank 26 through the injection pipe 27 for recovery. There is no need for staff to manually pour it into the recovery tank, reducing the workload of personnel. When the filter mechanism needs cleaning, the filter cylinder 7 can be unscrewed by turning the cylinder cover 8 with the handle 9 to remove the first ring frame 11, the second ring frame 14, and the third ring frame 17, and then the filter screen plate 12, the porous filter plate 15, and the activated carbon filter plate 18 can be cleaned.

[0026] 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 rapid ethylene glycol recovery system, comprising a mounting base (1), a filter cartridge (7), and a supporting base plate (22), characterized in that: The filter cylinder (7) is threaded at the external thread of the top and connected to the internal thread of the cover (8). The top two ends of the inner top surface of the cover (8) are respectively fixed to the first vertical rod (10). The bottom end of the first vertical rod (10) is fixed to the first annular frame (11). The bottom of the first annular frame (11) is fixed to the filter screen plate (12). The bottom two ends of the bottom surface of the first annular frame (11) are respectively fixed to the second vertical rod (13). The bottom end of the second vertical rod (13) is fixed to the second annular frame (14). The bottom of the second annular frame (14) is fixed to the porous filter plate (15). The bottom two ends of the bottom surface of the second annular frame (14) are respectively fixed to the third vertical rod (16). The bottom end of the third vertical rod (16) is fixed to the third annular frame (17). The bottom of the third annular frame (17) is fixed to the activated carbon filter plate (18). The bottom surface of the filter cylinder (7) is fixed to the liquid outlet pipe (20). A recovery storage tank (26) is placed on the supporting base plate (22). A liquid injection pipe (27) is fixed to the top of the recovery storage tank (26). The internal thread of the liquid injection pipe (27) is threaded to the external thread of the bottom of the funnel (28). A connecting plate (30) is fixed to the top surface of the funnel (28). Positioning rods (31) are fixed to both ends of one side of the connecting plate (30). Connecting blocks (32) are fixed to both sides of the liquid outlet pipe (20). A positioning hole groove (321) is opened on one side of the connecting block (32). The positioning rod (31) is slidably connected to the positioning hole groove (321).

2. The ethylene glycol rapid recovery system according to claim 1, characterized in that: The top surface of the support base plate (22) is fixedly connected to the push rod (23), and multiple brake casters (24) are fixedly installed at the bottom of the support base plate (22).

3. The ethylene glycol rapid recovery system according to claim 1, characterized in that: The centrifugal pump (2) is fixedly connected to the top of the mounting base (1), the input pipe (3) is fixedly connected to one side of the centrifugal pump (2), the inlet pipe (5) is connected to the flange of the input pipe (3), the output pipe (4) is fixedly connected to the top of the centrifugal pump (2), the output pipe (4) is connected to one end of the delivery pipe (6) by the flange, the other end of the delivery pipe (6) is fixedly connected to one side of the filter cylinder (7), and the delivery pipe (6) and the filter cylinder (7) are internally connected.

4. The ethylene glycol rapid recovery system according to claim 1, characterized in that: The handle (9) is fixed to the top surface of the cylinder cover (8), and the first ring frame (11), the second ring frame (14), and the third ring frame (17) contact the inner wall of the filter cylinder (7).

5. The ethylene glycol rapid recovery system according to claim 1, characterized in that: The bottom of the filter cylinder (7) is fixedly connected to a flow guide block (19), and the outer surface of the filter cylinder (7) is fixedly connected to a support block (33).

6. The ethylene glycol rapid recovery system according to claim 1, characterized in that: The liquid outlet pipe (20) and the filter cylinder (7) are internally connected. A valve (21) is provided on the liquid outlet pipe (20). A limiting frame (25) is fixed to the top surface of the supporting base plate (22). The base of the recovery storage tank (26) contacts the limiting frame (25).

7. The ethylene glycol rapid recovery system according to claim 1, characterized in that: The injection pipe (27) and the recovery storage tank (26) are internally connected. The outer surface of the funnel (28) is fixed with a limiting ring plate (281). The bottom surface of the limiting ring plate (281) contacts the top surface of the injection pipe (27). The external thread of the injection pipe (27) is threadedly connected to the internal thread of the sealing cap (29).

Citation Information

Patent Citations

  • Ethylene glycol recovery filter

    CN221207087U