Ultra-pure ammonia deep purification device

By using a buffer seat and a conical seat in conjunction with a heating plate to preheat the liquid, and using a reboiler to generate steam for gas-liquid separation, the problem of ammonia being absorbed by the liquid phase and low purification efficiency in existing technologies is solved, and high-efficiency purification of ultrapure ammonia is achieved.

CN224220767UActive Publication Date: 2026-05-12WUHAN ZHONGXIN RUIYUAN GAS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN ZHONGXIN RUIYUAN GAS CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing ultrapure ammonia purification processes, the ammonia gas is absorbed by the liquid phase when the distillation column comes into contact with the gas phase, resulting in slow purification efficiency and a lack of effective liquid preheating methods.

Method used

The system uses a combination of a buffer seat and a conical seat to slow down the descent of the liquid, and preheats the liquid with an internal heating plate. At the same time, it uses a reboiler to generate steam, which is then collected by a mist eliminator after condensation, thus achieving gas-liquid separation.

Benefits of technology

The purification efficiency of ultrapure ammonia is improved by accelerating the purification process through liquid preheating, reducing the absorption of ammonia by the liquid phase, and achieving efficient gas-liquid separation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an ultrapure ammonia deep purification device which comprises a fixed seat, a movable seat is movably mounted on the side of the fixed seat, a groove is formed in the top of the movable seat, a collecting tank is movably mounted in the groove, a drain pipe and an exhaust pipe are fixedly mounted on the side of the collecting tank respectively, and the drain pipe and the exhaust pipe are communicated with the groove. A barrel body is fixed to the top of the fixing base, an annular pipe is fixed to the top of the barrel body, a feeding pipe is fixed to the side of the annular pipe, an exhaust barrel is fixed to the top of the barrel body, and a condensation barrel is fixedly installed on the exhaust barrel. When the ultra-pure ammonia deep purification device is used, ammonia-containing liquid reciprocates between the buffer seat and the conical seat, the buffer seat and the conical seat are matched to slow down the descending speed of the liquid, and meanwhile, the liquid is preheated in the early stage through the heating plates in the buffer seat and the conical seat.
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Description

Technical Field

[0001] This utility model relates to the field of ultrapure ammonia purification equipment, specifically an ultrapure ammonia deep purification device. Background Technology

[0002] In the processing of ultrapure ammonia, purification methods are generally used to obtain ultrapure ammonia. The existing purification process for ultrapure ammonia generally involves distilling ammonia water to separate the ammonia gas from the water to obtain ultrapure ammonia. However, when the existing distillation column turns the ammonia water into a gaseous reflux, it needs to contact the liquid phase to achieve component separation. However, this causes some of the ammonia gas to be absorbed by the liquid phase of the ammonia water, resulting in a slow purification process for ultrapure ammonia.

[0003] According to the patent document CN220968121U, an ultrapure ammonia deep purification device includes a first distillation column and a second distillation column. A first feed pipe is fixedly installed on one side of the middle of the first distillation column, and a first liquid inlet pipe is fixedly installed at the bottom of the first distillation column. A first reboiler is fixedly installed at the end of the first liquid inlet pipe, and a first steam pipe is fixedly installed on the first reboiler. The first steam pipe is fixedly connected to the middle of the first distillation column. In this technical solution, the gas phase and liquid phase in the first distillation column do not come into contact, and the ammonia water in the gas phase is purified for the first time. The purified ammonia water is compressed and becomes liquid before entering the second distillation column. After the interaction of the gas and liquid phases, ultrapure ammonia is obtained, which is beneficial to improving the practicality of the device and improving the purification efficiency of ultrapure ammonia. Regarding the above technical solution, although the purification efficiency is improved, it cannot preheat the ammonia-containing liquid in the early stage during use, which is inconvenient. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an ultrapure ammonia deep purification device to solve the problems mentioned in the background technology. The utility model has a novel structure. In use, the ammonia-containing liquid moves back and forth between the buffer seat and the conical seat. The buffer seat and the conical seat cooperate to slow down the speed of liquid descent. At the same time, the heating plate inside the buffer seat and the conical seat completes the preheating of the liquid.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultrapure ammonia deep purification device, comprising a fixed base, a movable base movably mounted on the side of the fixed base, a groove on the top of the movable base, a collection tank movably mounted inside the groove, a drain pipe and an exhaust pipe fixedly mounted on the side of the collection tank, a barrel fixedly mounted on the top of the fixed base, a ring pipe fixedly mounted on the top of the barrel, a feed pipe fixedly mounted on the side of the ring pipe, an exhaust pipe fixedly mounted on the top of the barrel, and a condensation tank fixedly mounted on the exhaust pipe.

[0006] Furthermore, a drive motor is fixed to the top of the condenser tank, and a circulation pipe is fixed to the bottom of the condenser tank, with one end of the circulation pipe fixed to the tank body.

[0007] Furthermore, a connecting seat is fixed to one end of the exhaust pipe, a connecting pipe is movably installed inside the connecting seat, one end of the connecting pipe is fixed to the collection tank, and a sealing gasket is installed between the connecting pipe and the connecting seat.

[0008] Furthermore, an inner liner is fixed inside the barrel, a buffer seat is fixed on the inner liner, and a conical seat is fixed on the inner wall of the barrel. The conical seat and the buffer seat are staggered vertically, and a heating plate is fixedly installed inside both the conical seat and the buffer seat.

[0009] Furthermore, a fixing cylinder is installed inside the inner liner, one end of the fixing cylinder is fixed to the exhaust pipe, a reboiler is fixed to one end of the fixing cylinder, an opening is opened on the side of the reboiler, and a connection hole is opened on the inner liner.

[0010] Furthermore, a fixing groove is provided on the side of the fixing base, and a lifting mechanism is fixedly installed inside the fixing groove. A fixing block is fixed to one end of the lifting mechanism, and one end of the fixing block is fixed to the movable base.

[0011] Furthermore, a limiting ring is fixed inside the condenser tank, a fixing ring is movably installed on the side of the limiting ring, a fixing plate is fixed on the fixing ring, and a sealing ring is fixed on the side of the fixing plate.

[0012] Furthermore, a support mechanism is fixed to one side of the fixed plate, one end of the support mechanism is fixed to the inner wall of the condenser tank, a mist-catching net is fixedly installed on the fixed plate, a rotating seat is rotatably installed between the fixed plates, a rotating column is fixed to the side of the rotating seat, and the rotating seat is mounted on the drive motor through an output shaft.

[0013] The beneficial effects of this utility model are:

[0014] 1. In this ultrapure ammonia deep purification device, the ammonia-containing liquid moves back and forth between the buffer seat and the conical seat during use. The buffer seat and the conical seat work together to slow down the rate at which the liquid falls. At the same time, the liquid is preheated by the heating plates inside the buffer seat and the conical seat.

[0015] 2. This ultrapure ammonia deep purification device generates water vapor from the heated liquid in the reboiler, which moves upward. The water vapor is condensed and circulated inside the condenser tank and enters the tank body for redistillation. The water vapor carried in the ammonia is collected by a mist-catching net. The mist-catching net is shaken later to facilitate the rapid downward fall of the water droplets adhering to it.

[0016] 3. This ultrapure ammonia deep purification device has a movable seat that pushes the connecting pipe into the interior of the connecting seat. The vertical up-and-down movement of the collection tank facilitates disassembly. In addition, the collection tank can be used for transfer, and gas-liquid separation can be achieved again through the drain pipe and exhaust pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an ultrapure ammonia deep purification device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the inner liner of an ultrapure ammonia deep purification device according to the present invention;

[0019] Figure 3 This is a schematic diagram of the reboiler structure of an ultrapure ammonia deep purification device according to this utility model;

[0020] Figure 4 This is a side view cross-sectional structural diagram of the condenser tank of an ultrapure ammonia deep purification device according to this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the rotating seat of an ultrapure ammonia deep purification device according to the present invention;

[0022] In the diagram: 1. Fixed seat; 2. Movable seat; 3. Fixed groove; 4. Groove; 5. Collection tank; 6. Drain pipe; 7. Exhaust pipe; 8. Barrel body; 9. Ring pipe; 10. Feed pipe; 11. Exhaust stack; 12. Condenser; 13. Drive motor; 14. Circulation pipe; 15. Connecting seat; 16. Connecting pipe; 17. Lifting mechanism; 18. Fixed block; 19. Inner liner; 20. Buffer seat; 21. Conical seat; 22. Fixed cylinder; 23. Reboiler; 24. Opening; 25. Limiting ring; 26. Fixed ring; 27. Fixed plate; 28. Sealing ring; 29. ​​Mist eliminator; 30. Support mechanism; 31. Rotating seat; 32. Rotating column; 33. Output shaft. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figures 1 to 5This utility model provides a technical solution: an ultrapure ammonia deep purification device, including a fixed base 1, a movable base 2 movably installed on the side of the fixed base 1, a groove 4 on the top of the movable base 2, a collection tank 5 movably installed inside the groove 4, a drain pipe 6 and an exhaust pipe 7 fixedly installed on the side of the collection tank 5, a barrel 8 fixed on the top of the fixed base 1, a ring pipe 9 fixed on the top of the barrel 8, a feed pipe 10 fixed on the side of the ring pipe 9, an exhaust pipe 11 fixed on the top of the barrel 8, a condenser 12 fixedly installed on the exhaust pipe 11, a drive motor 13 fixed on the top of the condenser 12, and a circulation pipe 14 fixed on the bottom of the condenser 12. One end of the circulation pipe 14 is fixed to the barrel 8, and the liquid that is not completely extracted re-enters the barrel 8 through the circulation pipe 14 for re-distillation.

[0025] In this embodiment, a connecting seat 15 is fixed to one end of the exhaust pipe 11. A connecting pipe 16 is movably installed inside the connecting seat 15. One end of the connecting pipe 16 is fixed to the collection tank 5. A sealing gasket is installed between the connecting pipe 16 and the connecting seat 15. An inner liner 19 is fixed inside the barrel body 8. A buffer seat 20 is fixed on the inner liner 19. A conical seat 21 is fixed on the inner wall of the barrel body 8. The conical seat 21 and the buffer seat 20 are staggered vertically. Heating plates are fixedly installed inside both the inner liner 1 and the buffer seat 20. The heating plates are composed of electric heating wires. After being energized, they generate high temperature to preheat the liquid. A fixed cylinder 22 is installed inside the inner liner 19. One end of the fixed cylinder 22 is fixed to the exhaust pipe 11. A reboiler 23 is fixed to one end of the fixed cylinder 22. An opening 24 is opened on the side of the reboiler 23. A connection hole is opened on the inner liner 19. The heating device inside the reboiler 23 heats the liquid to generate gas that moves upward.

[0026] In this embodiment, a fixing groove 3 is formed on the side of the fixing base 1. A lifting mechanism 17 is fixedly installed inside the fixing groove 3. The lifting mechanism 17 is a linear reciprocating electric push rod. The lifting mechanism 17 pushes the collection tank 5 upward to press the connecting pipe 16 into the inside of the connecting base 15 for sealing. A fixing block 18 is fixed to one end of the lifting mechanism 17, and one end of the fixing block 18 is fixed to the movable base 2. A limit ring 25 is fixed inside the condensation tank 12. A fixing ring 26 is movably installed on the side of the limit ring 25, and a fixing plate is fixed on the fixing ring 26. 27. A sealing ring 28 is fixed to the side of the fixed disk 27. A support mechanism 30 is fixed to one side of the fixed disk 27. One end of the support mechanism 30 is fixed to the inner wall of the condenser tank 12. A mist-catching net 29 is fixedly installed on the fixed disk 27. A rotating seat 31 is rotatably installed between the fixed disks 27. A rotating column 32 is fixed to the side of the rotating seat 31. The rotating seat 31 is mounted on the drive motor 13 through the output shaft 33. The support mechanism 30 is a support spring. The support spring pushes the fixed disk 27 to shake. The shaking of the fixed disk 27 completes the rapid shaking off of water droplets.

[0027] In use, the liquid is injected into the ring pipe 9 through the feed pipe 10. A connecting groove is provided between the ring pipe 9 and the barrel 8, allowing the liquid to slide down to different positions inside the barrel 8. As the liquid flows between the barrel 8 and the inner liner 19, the buffer seat 20 and the conical seat 21 work together to achieve a slow descent. During the slow flow, the heating plates inside the buffer seat 20 and the conical seat 21 are activated to preheat the flowing liquid. After preheating, the liquid enters the inner liner 19 through the connecting hole at the bottom of the inner liner 19 and then enters the reboiler 23 through the opening 24. The reboiler 23 heats the liquid to generate steam containing ultrapure ammonia. The ammonia moves upward with the fixed cylinder 22 to the interior of the exhaust pipe 11. Water vapor moves inside the condenser 12, and during this movement, the water vapor comes into contact with the mist catching net 29. The mist catching net 29 filters the water vapor from the gas. Adsorption, over a long period, causes water vapor to form water droplets. During intermittent periods, the drive motor 13 is activated, causing the rotating column 32 on the rotating seat 31 to contact the fixed disk 27. The rotating column 32 pushes the fixed disk 27 to shake, which helps to quickly shake the water droplets on the mist-catching net 29 into the circulation pipe 14. Through the circulation pipe 14, the liquid is heated and distilled again by the reboiler 23. The dehumidified gas enters the collection tank 5 through the connecting pipe 16. When the collection tank 5 needs to collect gas, the gas is injected into the collection tank 5, and the control valve on the connecting pipe 16 is closed, causing the lifting mechanism 17 to move the fixed block 18 and the movable seat 2 downward. The connecting pipe 16 and the connecting seat 15 can be quickly disassembled, facilitating the quick disassembly of the collection tank 5 later. When the collection tank 5 is needed as a transfer station, the drain pipe 6 and the exhaust pipe 7 are opened to achieve gas-liquid separation.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for deep purification of ultrapure ammonia, comprising a fixed base (1), characterized in that: A movable seat (2) is movably installed on the side of the fixed seat (1). A groove (4) is opened on the top of the movable seat (2). A collection tank (5) is movably installed inside the groove (4). A drain pipe (6) and an exhaust pipe (7) are fixedly installed on the side of the collection tank (5). A barrel body (8) is fixed on the top of the fixed seat (1). A ring pipe (9) is fixed on the top of the barrel body (8). A feed pipe (10) is fixed on the side of the ring pipe (9). An exhaust pipe (11) is fixed on the top of the barrel body (8). A condenser (12) is fixedly installed on the exhaust pipe (11).

2. The ultrapure ammonia deep purification device according to claim 1, characterized in that: A drive motor (13) is fixed to the top of the condenser (12), and a circulation pipe (14) is fixed to the bottom of the condenser (12). One end of the circulation pipe (14) is fixed to the barrel body (8).

3. The ultrapure ammonia deep purification device according to claim 1, characterized in that: One end of the exhaust pipe (11) is fixed with a connecting seat (15), and a connecting pipe (16) is movably installed inside the connecting seat (15). One end of the connecting pipe (16) is fixed on the collection tank (5), and a sealing gasket is installed between the connecting pipe (16) and the connecting seat (15).

4. The ultrapure ammonia deep purification device according to claim 1, characterized in that: The barrel (8) has an inner liner (19) fixed inside, and a buffer seat (20) is fixed on the inner liner (19). A conical seat (21) is fixed on the inner wall of the barrel (8). The conical seat (21) and the buffer seat (20) are staggered vertically. A heating plate is fixedly installed inside both the conical seat (21) and the buffer seat (20).

5. The ultrapure ammonia deep purification device according to claim 4, characterized in that: The inner liner (19) is equipped with a fixing cylinder (22), one end of which is fixed to the exhaust pipe (11), and a reboiler (23) is fixed to one end of the fixing cylinder (22). The reboiler (23) has an opening (24) on its side, and the inner liner (19) has a connection hole.

6. The ultrapure ammonia deep purification device according to claim 1, characterized in that: The fixed seat (1) has a fixed groove (3) on its side. A lifting mechanism (17) is fixedly installed inside the fixed groove (3). A fixed block (18) is fixed to one end of the lifting mechanism (17). One end of the fixed block (18) is fixed to the movable seat (2).

7. The ultrapure ammonia deep purification device according to claim 1, characterized in that: A limiting ring (25) is fixed inside the condenser tank (12). A fixing ring (26) is movably installed on the side of the limiting ring (25). A fixing plate (27) is fixed on the fixing ring (26). A sealing ring (28) is fixed on the side of the fixing plate (27).

8. The ultrapure ammonia deep purification device according to claim 7, characterized in that: A support mechanism (30) is fixed on one side of the fixed disk (27), and one end of the support mechanism (30) is fixed on the inner wall of the condenser (12). A mist-catching net (29) is fixedly installed on the fixed disk (27). A rotating seat (31) is rotatably installed between the fixed disks (27). A rotating column (32) is fixed on the side of the rotating seat (31). The rotating seat (31) is mounted on the drive motor (13) through the output shaft (33).