Efficient NMP (N-Methyl Pyrrolidone) collecting tank

By installing a liquid level gauge and thermometer in the NMP collection tank, combined with wave-breaking plates and multiple drainage ports, the problems of incomplete unloading and resource waste in the existing technology are solved, and safe, stable transportation and efficient unloading of NMP are achieved.

CN223328254UActive Publication Date: 2025-09-12ZHUHAI SANTAI NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202422917932.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-09-12
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing NMP collection tanks easily cause resource waste and residue during unloading, which is difficult to completely eliminate.

Method used

An efficient NMP collection tank was designed, equipped with multiple level gauges and thermometers to monitor the internal conditions of the tank in real time. Combined with wave-breaking plates and multiple drain ports, it ensures clean unloading and saves energy.

Benefits of technology

The safe and stable transportation and clean unloading of NMP inside the tank are realized, which saves energy and avoids resource waste and residue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of NMP, and discloses an efficient NMP collecting tank which comprises a tank body, a submerged pump inlet is fixedly installed on the upper portion of the tank body, a support is fixedly installed in the submerged pump inlet, a pump body is fixedly installed on the upper portion of the support, and the lower portion of the pump body is fixedly provided with a hydraulic cylinder. The first remote transmission liquid level meter port, the first in-situ liquid level meter port, the second remote transmission liquid level meter port, the second in-situ liquid level meter port and the remote transmission thermometer port are fixedly mounted in front of the tank body, so that the NMP (N-methyl-2-pyrrolidone) in the tank body has certain safety during transportation; meanwhile, a first emptying opening and a second emptying opening are fixedly formed in the bottom of the tank body, when feeding and discharging are needed, the NMP can move downwards along with gravity, the discharging energy is saved, the height of the NMP in the tank body is monitored in real time through a first remote transmission liquid level meter opening, a first in-situ liquid level meter opening, a second in-situ liquid level meter opening and a remote transmission temperature meter opening, and the discharging efficiency is improved. And the effect of ensuring clean discharging is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of NMP, and more specifically, to a high-efficiency NMP collecting tank. Background Art

[0002] NMP-methylpyrrolidone is an organic substance with the chemical formula C5H9NO. It is a colorless to light yellow transparent liquid with a slight ammonia odor. It is miscible with water in any proportion and soluble in various organic solvents such as ether, acetone, esters, halogenated hydrocarbons, and aromatic hydrocarbons. However, existing NMP needs to be transported through large collection tanks during transportation. When unloading the existing collection tanks, most of them are extracted or pushed by equipment and other devices, which easily leads to resource waste and is difficult to completely remove, resulting in residues. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a high-efficiency NMP collection tank with the advantage of clean unloading.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a high-efficiency NMP collection tank, comprising a tank body, a submersible pump inlet fixedly installed on the top of the tank body, a bracket fixedly installed inside the submersible pump inlet, a pump body fixedly installed above the bracket, a connecting pipe fixedly installed on the bottom of the pump body, a feed port and a remote pressure gauge port fixedly installed on the top of the tank body, the remote pressure gauge port being located on the right side of the feed port, a first remote liquid level gauge port and a first local liquid level gauge port fixedly installed on the front of the tank body, and a first drain port and a second drain port fixedly installed on the bottom of the tank body.

[0005] As a preferred technical solution of the present invention, a second remote liquid level gauge port, a second local liquid level gauge port and a remote thermometer port are fixedly installed on the front of the tank body. The second remote liquid level gauge port is located on the left side of the second local liquid level gauge port, the second local liquid level gauge port is located on the left side of the remote thermometer port, and the remote thermometer port is located below the first remote liquid level gauge port.

[0006] As an optimal technical solution of the present invention, a limit plate is fixedly installed inside the tank body, and the limit plate is located on the left side of the feed port. A nitrogen port and a spare port are fixedly installed above the tank body, and the spare port is located on the right side of the nitrogen port.

[0007] As an optimal technical solution of the present invention, a hand hole is fixedly installed on the bottom of the tank body, a manhole is fixedly installed on the front of the tank body, a connecting block is fixedly installed on the left side of the manhole, a connecting shaft is rotatably connected to the inside of the connecting block, a manhole cover is fixedly installed on the outside of the connecting shaft, and the manhole cover is located in front of the manhole.

[0008] As a preferred technical solution of the present invention, a wave-breaking plate is provided inside the tank body, a connecting port and a discharge port are provided inside the wave-breaking plate, and the discharge port is located below the connecting port.

[0009] As a preferred technical solution of the present invention, support blocks are fixedly installed on the bottom of the tank body. There are four support blocks, and the four support blocks are all located below the tank body.

[0010] As a preferred technical solution of the present invention, there are three wave-breaking plates, all of which are located inside the tank body; there are three discharge ports, all of which are located at the bottom of the wave-breaking plates.

[0011] As a preferred technical solution of the present invention, the bottom of the feed port is located inside the tank body, and the bottom end of the feed port is distributed at a 45° angle, and the diameter of the hand hole is larger than the diameter of the feed port.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model achieves real-time monitoring of the temperature and height of the NMP inside the tank body by fixedly installing a first remote liquid level gauge port, a first local liquid level gauge port, a second remote liquid level gauge port, a second local liquid level gauge port and a remote thermometer port on the front of the tank body, thereby improving the safety of the NMP inside the tank body during transportation. At the same time, a first row of clean ports and a second row of clean ports are fixedly installed on the bottom of the tank body. When loading and unloading are required, the NMP will move downward with gravity, thereby saving energy for unloading. In addition, the height of the NMP inside the tank body is monitored in real time by the first remote liquid level gauge port, the first local liquid level gauge port, the second local liquid level gauge port and the remote thermometer port, thereby ensuring clean unloading.

[0014] 2. The utility model fixes a wave-breaking plate inside the tank body, opens a connecting port inside the wave-breaking plate, and opens a discharge port at the bottom of the wave-breaking plate. At the same time, there are three wave-breaking plates, all of which are located inside the tank body. When NMP needs to be transported, the vehicle will often accelerate or brake while driving on the road. Due to the effect of inertia, the NMP will be driven to shake, which will cause the center of gravity inside the tank body to shift, resulting in instability. At this time, the wave-breaking plate disperses the NMP inside the tank body, thereby preventing the NMP inside the tank body from shaking, thereby achieving the effect of ensuring stability. At the same time, the discharge port is located at the bottom of the wave-breaking plate, which ensures that the NMP can flow normally inside the tank body during unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A magnified schematic diagram of the structure at A;

[0017] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the structure at B;

[0018] Figure 4 This is a schematic diagram of the tank structure of the utility model;

[0019] Figure 5 It is a cross-sectional view of the overall structure of the utility model.

[0020] In the figure: 1. Tank body; 2. Submersible pump inlet; 3. Bracket; 4. Pump body; 5. Connecting pipe; 6. Feed inlet; 7. Remote pressure gauge port; 8. First remote level gauge port; 9. First local level gauge port; 10. Second remote level gauge port; 11. Second local level gauge port; 12. Remote thermometer port; 13. First drain port; 14. Second drain port; 15. Nitrogen port; 16. Spare port; 17. Hand hole; 18. Manhole; 19. Connecting block; 20. Connecting shaft; 21. Manhole cover; 22. Wave-breaking plate; 23. Connecting port; 24. Discharge port; 25. Limit plate; 26. Support block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 5 As shown, the utility model provides a high-efficiency NMP collection tank, including a tank body 1, a submersible pump inlet 2 is fixedly installed on the top of the tank body 1, a bracket 3 is fixedly installed inside the submersible pump inlet 2, a pump body 4 is fixedly installed above the bracket 3, a connecting pipe 5 is fixedly installed at the bottom of the pump body 4, a feed port 6 and a remote pressure gauge port 7 are fixedly installed on the top of the tank body 1, the remote pressure gauge port 7 is located on the right side of the feed port 6, a first remote liquid level gauge port 8 and a first local liquid level gauge port 9 are fixedly installed in front of the tank body 1, and a first drain port 13 and a second drain port 14 are fixedly installed at the bottom of the tank body 1.

[0023] The diameter of the submersible pump inlet 2 is greater than the diameter of the feed port 6. Its main function is to install a pump body 4 and a connecting pipe 5 inside to process the NMP inside the tank body 1 to prevent internal air blockage. At the same time, since a first drain port 13 and a second drain port 14 are fixedly installed at the bottom of the tank body 1, the main function of the first drain port 13 and the second drain port 14 is to facilitate the discharge of NMP inside the tank body 1 downwardly under gravity, thereby saving energy and improving the discharge effect, while achieving the effect of completely eliminating NMP.

[0024] Among them, a second remote liquid level gauge port 10, a second local liquid level gauge port 11 and a remote thermometer port 12 are fixedly installed in front of the tank body 1. The second remote liquid level gauge port 10 is located on the left side of the second local liquid level gauge port 11, the second local liquid level gauge port 11 is located on the left side of the remote thermometer port 12, and the remote thermometer port 12 is located below the first remote liquid level gauge port 8.

[0025] The main function of the remote thermometer port 12 and the second local liquid level gauge port 11 is to monitor the position of the NMP inside the tank body 1, so that when unloading, the position of the NMP inside the tank body 1 can be known in time to achieve the effect of monitoring whether the unloading is complete.

[0026] Among them, a limit plate 25 is fixedly installed inside the tank body 1, and the limit plate 25 is located on the left side of the feed port 6. A nitrogen port 15 and a spare port 16 are fixedly installed above the tank body 1, and the spare port 16 is located on the right side of the nitrogen port 15.

[0027] The main function of the limiting plate 25 is to guide and limit the falling NMP after the NMP is injected into the tank body 1. Due to the large gravity of the fall, the NMP is prevented from splashing inside the tank body 1, thereby ensuring the stability of the feeding.

[0028] Among them, a hand hole 17 is fixedly installed at the bottom of the tank body 1, a manhole 18 is fixedly installed in front of the tank body 1, a connecting block 19 is fixedly installed on the left side of the manhole 18, the internal rotation of the connecting block 19 is connected to the connecting shaft 20, and a manhole cover 21 is fixedly installed on the outside of the connecting shaft 20, and the manhole cover 21 is located in front of the manhole 18.

[0029] The manhole cover 21 is closed and opened by the rotation of the connecting shaft 20 and the connecting block 19, and the manhole cover 21 is sealed with the manhole 18 by bolts. When an emergency occurs, the interior of the tank body 1 can be opened in time to achieve the ventilation effect.

[0030] A wave-breaking plate 22 is provided inside the tank body 1 , and a connecting port 23 and a discharge port 24 are provided inside the wave-breaking plate 22 . The discharge port 24 is located below the connecting port 23 .

[0031] The main function of the wave-breaking plate 22 is to prevent the NMP inside the tank body 1 from shaking greatly due to the complicated roadside conditions when the tank body 1 is being transported, thereby preventing the tank body 1 from shaking greatly and causing the entire tank body to be unstable.

[0032] Among them, support blocks 26 are fixedly installed on the bottom of the tank body 1. There are four support blocks 26, and the four support blocks 26 are all located below the tank body 1.

[0033] The main function of the four support blocks 26 is to support the tank body 1 so as to ensure the overall stability of the tank body 1 during transportation and prevent the tank body 1 from being displaced due to inertia.

[0034] There are three wave-breaking plates 22 , all of which are located inside the tank body 1 ; there are three discharge ports 24 , all of which are located at the bottom of the wave-breaking plates 22 .

[0035] The main function of the three wave-breaking plates 22 is to ensure that the NMP can flow normally inside the tank body 1 when the NMP inside the tank body 1 is unloaded, thereby achieving the effect of facilitating unloading.

[0036] The bottom of the feed port 6 is located inside the tank body 1 , and the bottom end of the feed port 6 is distributed at a 45° angle. The diameter of the hand hole 17 is greater than the diameter of the feed port 6 .

[0037] The main function of the feed port 6 is that its bottom is inclined, which facilitates NMP to fall into the bottom of the tank body 1 during feeding, thereby achieving the effect of facilitating feeding.

[0038] The working principle and use process of this utility model:

[0039] First, the NMP material is injected into the interior of the tank body 1 through the feed port 6. At this time, since the bottom of the feed port 6 is inclined, it is convenient for the NMP to fall into the bottom of the tank body 1 better during feeding, thereby achieving the effect of facilitating feeding. At the same time, since the limit plate 25 is located on the left side of the feed port 6, when the NMP is injected into the interior of the tank body 1, the limit plate 25 guides and limits the falling NMP. Due to the large gravity of the fall, the NMP is prevented from splashing inside the tank body 1, thereby ensuring the stability of feeding.

[0040] Secondly, by fixing the first remote liquid level gauge port 8, the first local liquid level gauge port 9, the second remote liquid level gauge port 10, the second local liquid level gauge port 11 and the remote thermometer port 12 on the front of the tank body 1, the temperature and height of the NMP inside the tank body 1 can be monitored in real time, thereby improving the safety of the NMP inside the tank body 1 during transportation;

[0041] Secondly, a wave-breaking plate 22 is fixedly installed inside the tank body 1, a connecting port 23 is opened inside the wave-breaking plate 22, and a discharge port 24 is opened at the bottom of the wave-breaking plate 22. At the same time, there are three wave-breaking plates 22, and the three wave-breaking plates 22 are all located inside the tank body 1. When NMP needs to be transported, the vehicle will often accelerate or brake while driving on the road. Due to the effect of inertia, the NMP will be driven to shake, which will cause the center of gravity inside the tank body 1 to shift, resulting in instability. At this time, the wave-breaking plate 22 disperses the NMP inside the tank body 1, thereby preventing the NMP inside the tank body 1 from shaking, thereby achieving the effect of ensuring stability. At the same time, the discharge port 24 is located at the bottom of the wave-breaking plate 22, which ensures that the NMP can flow normally inside the tank body 1 during unloading.

[0042] Finally, a first row of clean ports 13 and a second row of clean ports 14 are fixedly installed at the bottom of the tank body 1. When loading and unloading are required, the NMP will move downward with gravity, thereby saving energy for unloading. In addition, the height of the NMP inside the tank body 1 is monitored in real time through the first remote liquid level gauge port 8, the first local liquid level gauge port 9, the second local liquid level gauge port 11 and the remote thermometer port 12, thereby ensuring clean unloading.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency NMP collection tank, comprising a tank body (1), characterized in that: A submersible pump inlet (2) is fixedly mounted above the tank body (1), a bracket (3) is fixedly mounted inside the submersible pump inlet (2), a pump body (4) is fixedly mounted above the bracket (3), a connecting pipe (5) is fixedly mounted at the bottom of the pump body (4), a feed port (6) and a remote pressure gauge port (7) are fixedly mounted above the tank body (1), the remote pressure gauge port (7) is located on the right side of the feed port (6), a first remote liquid level gauge port (8) and a first local liquid level gauge port (9) are fixedly mounted at the front of the tank body (1), and a first drain port (13) and a second drain port (14) are fixedly mounted at the bottom of the tank body (1).

2. A high-efficiency NMP collecting tank according to claim 1, characterized in that: A second remote level gauge port (10), a second on-site level gauge port (11) and a remote thermometer port (12) are fixedly installed in front of the tank body (1); the second remote level gauge port (10) is located on the left side of the second on-site level gauge port (11); the second on-site level gauge port (11) is located on the left side of the remote thermometer port (12); and the remote thermometer port (12) is located below the first remote level gauge port (8).

3. A high-efficiency NMP collecting tank according to claim 1, characterized in that: A limit plate (25) is fixedly installed inside the tank body (1), and the limit plate (25) is located on the left side of the feed port (6). A nitrogen port (15) and a spare port (16) are fixedly installed above the tank body (1), and the spare port (16) is located on the right side of the nitrogen port (15).

4. A high-efficiency NMP collection tank according to claim 1, characterized in that: A hand hole (17) is fixedly installed at the bottom of the tank body (1), a manhole (18) is fixedly installed in front of the tank body (1), a connecting block (19) is fixedly installed on the left side of the manhole (18), a connecting shaft (20) is rotatably connected inside the connecting block (19), a manhole cover (21) is fixedly installed outside the connecting shaft (20), and the manhole cover (21) is located in front of the manhole (18).

5. A high-efficiency NMP collection tank according to claim 1, characterized in that: A wave-breaking plate (22) is provided inside the tank body (1), a connecting port (23) and a discharge port (24) are provided inside the wave-breaking plate (22), and the discharge port (24) is located below the connecting port (23).

6. A high-efficiency NMP collection tank according to claim 1, characterized in that: A support block (26) is fixedly installed on the bottom of the tank body (1), and there are four support blocks (26). The four support blocks (26) are all located below the tank body (1).

7. A high-efficiency NMP collection tank according to claim 5, characterized in that: There are three anti-wave plates (22), and the three anti-wave plates (22) are all located inside the tank body (1); there are three discharge ports (24), and the three discharge ports (24) are all located at the bottom of the anti-wave plates (22).

8. A high-efficiency NMP collection tank according to claim 4, characterized in that: The bottom of the feed port (6) is located inside the tank body (1), and the bottom end of the feed port (6) is distributed at a 45° angle. The diameter of the hand hole (17) is greater than the diameter of the feed port (6).