A drying device for nitrogen production

Abstract

The utility model discloses a drying device for nitrogen preparation relates to a drying device, including heat exchanger, gas -liquid separator and adsorption dryer, and nitrogen is imported heat exchanger, and heat exchanger is connected with gas -liquid separator through first pipeline, and gas -liquid separator is connected with adsorption dryer through second pipeline, including a plurality of adsorption drying chamber in adsorption dryer, and different adsorbent is filled in different adsorption drying chamber. Compared with prior art, the utility model has the beneficial effects that: the utility model simple structure, convenient to use, nitrogen is passed through heat exchanger and gas -liquid separator once, so that most moisture can be removed initially, then through adsorption dryer, so that moisture is removed further, and adsorption dryer is provided with a plurality of different adsorbents, and is matched with the active alumina adsorption of regenerable simultaneously, can ensure that nitrogen is dried thoroughly, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to a drying device, specifically a drying device for nitrogen preparation. Background Technology

[0002] In the nitrogen preparation process, drying is a crucial step to ensure nitrogen purity and its subsequent performance. However, existing drying equipment for nitrogen preparation has many shortcomings and cannot meet the requirements for efficient and thorough drying.

[0003] Currently, traditional nitrogen drying devices are often complex in structure and inconvenient to operate, increasing the difficulty of equipment maintenance and operation. In terms of the drying process, most devices treat nitrogen through only a single drying stage, such as using only an adsorption dryer, resulting in limited moisture removal efficiency. Even in devices with multiple drying steps, the coordination between these stages is not optimal, failing to fully leverage synergy and making it difficult to completely remove moisture from the nitrogen, thus affecting the quality of the nitrogen.

[0004] Meanwhile, existing adsorption dryers use a single type of adsorbent, resulting in low adsorption efficiency and a lack of effective regeneration mechanisms. This not only leads to unstable drying effects and requires frequent adsorbent replacements, increasing operating costs, but also makes it difficult to adapt to the varying degrees of nitrogen drying required under different operating conditions. The shortcomings of existing drying equipment are particularly pronounced in fields with high nitrogen purity requirements, such as the electronics and chemical industries, failing to meet production demands.

[0005] Therefore, developing a drying device that is simple in structure, easy to use, can efficiently remove moisture from nitrogen through the synergistic effect of multiple stages, and has excellent adsorbent performance and is regenerable has become an urgent problem to be solved in the field of nitrogen preparation. Utility Model Content

[0006] The purpose of this invention is to provide a drying apparatus for nitrogen preparation, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A drying apparatus for nitrogen preparation includes a heat exchanger, a gas-liquid separator, and an adsorption dryer. Nitrogen is introduced into the heat exchanger, which is connected to the gas-liquid separator via a first pipe. The gas-liquid separator is connected to the adsorption dryer via a second pipe. The adsorption dryer includes multiple adsorption drying chambers, each filled with a different adsorbent.

[0009] As a further embodiment of this utility model: the adsorption dryer is provided with a first partition, a second partition and a third partition, which divide the interior of the adsorption dryer into four different chambers, which are connected in an S-shape.

[0010] As a further embodiment of this utility model: a sliding frame is longitudinally slidably connected inside the chamber at the end, and two active alumina adsorption layers are provided inside the sliding frame. A driving component is also provided on the side of the adsorption dryer to drive the sliding frame to move up and down. The driving component drives different active alumina adsorption layers to alternately enter the chamber for drying and adsorption.

[0011] As a further embodiment of this utility model: the drive assembly includes a motor, a punching disc is fixedly connected to the motor rotor, a drive rod is fixedly connected to the eccentric position of the punching disc, a drive groove is fixedly connected to the middle of the slide frame, and the drive rod cooperates with the drive groove.

[0012] As a further improvement of this utility model, two drying components are respectively provided above and below the adsorption dryer, and the drying components are used to regenerate the active alumina adsorption layer.

[0013] As a further embodiment of this utility model: the drying component includes a sliding groove fixedly connected to the side wall of the adsorption dryer, and an electric heater is slidably connected in the sliding groove, the electric heater being locked in position by a locking bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the utility model has a simple structure and is easy to use. Nitrogen gas passes through the heat exchanger and gas-liquid separator once, so that most of the moisture can be initially removed. Then, it passes through the adsorption dryer, so that the moisture is further removed. The adsorption dryer is equipped with multiple different adsorbents, and at the same time, it is combined with regenerable activated alumina adsorption, which can ensure that the nitrogen gas is thoroughly dried and has a good effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a drying device for nitrogen production;

[0016] Figure 2 This is a magnified view of point A in a drying apparatus used for nitrogen preparation;

[0017] Figure 3 This is a schematic diagram of the perforated disc in a drying device for nitrogen production.

[0018] Figure 4 This is a schematic diagram of the sliding frame in a drying device for nitrogen preparation.

[0019] In the diagram: 1. Heat exchanger; 2. Gas-liquid separator; 3. Adsorption dryer; 4. First pipe; 5. Second pipe; 6. First partition; 7. Second partition; 8. Third partition; 9. Sliding frame; 10. Activated alumina adsorption layer; 11. Motor; 12. Perforated plate; 13. Drive rod; 14. Drive groove; 15. Drying assembly; 16. Sliding groove; 17. Electric heater. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1: Please refer to Figures 1 to 4 A drying device for nitrogen preparation includes a heat exchanger 1, a gas-liquid separator 2, and an adsorption dryer 3. Nitrogen is introduced into the heat exchanger 1. The heat exchanger 1 is connected to the gas-liquid separator 2 through a first pipe 4. The gas-liquid separator 2 is connected to the adsorption dryer 3 through a second pipe 5. The adsorption dryer 3 includes multiple adsorption drying chambers, and different adsorbents are filled in different adsorption drying chambers.

[0025] In operation, nitrogen gas is introduced into heat exchanger 1 to cool the nitrogen, causing moisture to separate from the gas. The cooled gas-liquid mixture then enters gas-liquid separator 2, where the liquid water is separated. The mixed gas with lower water content then enters adsorption dryer 3, where the moisture is thoroughly removed by adsorption of the adsorbent in different chambers.

[0026] The adsorption dryer 3 is internally equipped with a first partition 6, a second partition 7, and a third partition 8, which divide the interior of the adsorption dryer 3 into four different chambers connected in an S-shape. This S-shaped flow channel allows the gas to fully contact the different adsorbents, thereby improving absorption efficiency.

[0027] A sliding frame 9 is longitudinally slidably connected inside the end chamber. Two activated alumina adsorption layers 10 are disposed inside the sliding frame 9. A drive assembly is also provided on the side of the adsorption dryer 3 to drive the sliding frame 9 up and down. The drive assembly drives different activated alumina adsorption layers 10 to alternately enter the chamber for drying and adsorption. The up-and-down movement of the sliding frame 9 relative to the adsorption dryer 3 allows different activated alumina adsorption layers 10 to participate in the adsorption process, preventing adsorption saturation.

[0028] The drive assembly includes a motor 11, with a perforated disc 12 fixedly connected to the rotor of the motor 11. A drive rod 13 is fixedly connected to the perforated disc 12 at an eccentric position. A drive groove 14 is fixedly connected to the center of the slide frame 9, and the drive rod 13 cooperates with the drive groove 14. The rotation of the motor 11 drives the perforated disc 12 to rotate, which in turn drives the drive rod 13 to rotate. The drive rod 13 drives the slide frame 9 to move up and down through the drive groove 14. The perforated disc 12 can also evenly disperse the airflow, thereby improving the drying effect.

[0029] Example 2: This example discloses the following technical content based on the previous example: Two drying components 15 are respectively arranged above and below the adsorption dryer 3. The drying components 15 are used to regenerate the activated alumina adsorption layer 10. When the activated alumina adsorption layer 10 is located outside the adsorption dryer 3, the drying component 15 on the corresponding side is turned on, and the activated alumina adsorption layer 10 is regenerated by heating. When it re-enters the adsorption dryer 3, it can obtain a better adsorption effect.

[0030] The drying assembly 15 includes a slide groove 16 fixedly connected to the side wall of the adsorption dryer 3, and an electric heater 17 is slidably connected in the slide groove 16. The electric heater 17 is locked in position by a locking bolt.

[0031] Working Principle: During operation, nitrogen gas is introduced into heat exchanger 1 to cool the nitrogen, causing moisture to separate from the gas. The cooled gas-liquid mixture then enters gas-liquid separator 2, where liquid water is separated. The mixture with lower water content then enters adsorption dryer 3, where moisture is thoroughly removed by adsorption of adsorbents in different chambers. An S-shaped interconnected flow channel allows the gas to fully contact different adsorbents, improving absorption efficiency. The sliding frame 9 moves up and down relative to adsorption dryer 3, allowing different activated alumina adsorption layers 10 to participate in adsorption, preventing adsorption saturation. When the activated alumina adsorption layer 10 is located outside adsorption dryer 3, the corresponding drying component 15 is activated, regenerating the activated alumina adsorption layer 10 through heating. When it re-enters adsorption dryer 3, it achieves better adsorption. Motor 11 rotates, driving perforated disc 12, which in turn rotates drive rod 13. Drive rod 13, through drive groove 14, moves sliding frame 9 up and down. The perforated disc 12 can also evenly disperse the airflow, thereby improving the drying effect.

[0032] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] 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 drying apparatus for nitrogen preparation, comprising a heat exchanger (1), a gas-liquid separator (2), and an adsorption dryer (3), characterized in that, Nitrogen gas is introduced into the heat exchanger (1), which is connected to the gas-liquid separator (2) through the first pipe (4). The gas-liquid separator (2) is connected to the adsorption dryer (3) through the second pipe (5). The adsorption dryer (3) includes multiple adsorption drying chambers, and different adsorbents are filled in different adsorption drying chambers.

2. The drying apparatus for nitrogen preparation according to claim 1, characterized in that, The adsorption dryer (3) is provided with a first partition (6), a second partition (7) and a third partition (8), which divide the interior of the adsorption dryer (3) into four different chambers, which are connected in an S-shape.

3. The drying apparatus for nitrogen preparation according to claim 2, characterized in that, The chamber at the end is longitudinally slidably connected with a sliding frame (9), and two active alumina adsorption layers (10) are provided inside the sliding frame (9). The side of the adsorption dryer (3) is also provided with a driving component that drives the sliding frame (9) to move up and down. The driving component drives different active alumina adsorption layers (10) to alternately enter the chamber for drying and adsorption.

4. The drying apparatus for nitrogen preparation according to claim 3, characterized in that, The drive assembly includes a motor (11), a punching disc (12) is fixedly connected to the rotor of the motor (11), a drive rod (13) is fixedly connected to the eccentric position of the punching disc (12), and a drive groove (14) is fixedly connected to the middle of the slide frame (9), with the drive rod (13) cooperating with the drive groove (14).

5. The drying apparatus for nitrogen preparation according to claim 1, characterized in that, The adsorption dryer (3) is provided with two drying components (15) on the upper and lower sides respectively. The drying components (15) are used to regenerate the active alumina adsorption layer (10).

6. The drying apparatus for nitrogen preparation according to claim 5, characterized in that, The drying assembly (15) includes a slide groove (16) fixedly connected to the side wall of the adsorption dryer (3), and an electric heater (17) is slidably connected in the slide groove (16). The electric heater (17) is locked in position by a locking bolt.

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