Nitrogen dryer

Abstract

The utility model provides a nitrogen dryer, and particularly relates to the technical field of nitrogen drying, the nitrogen dryer comprises a first drying box and a second drying box, when the nitrogen dryer is used, nitrogen is injected into the first drying box through a gas inlet pipe, calcium oxide is placed in a material frame on the inner side of the first drying box, and the nitrogen penetrates through the material frame and passes through the calcium oxide; according to the drying device, the nitrogen is dried, then the nitrogen subjected to primary drying enters the second drying box through the gas supply pipe, is subjected to secondary drying through activated aluminum oxide in the second drying box and is exhausted through the gas outlet pipe, and therefore the drying effect is achieved; the small activated aluminum oxide and calcium oxide can be collected, the filter screen can achieve the filtering effect, the top of the filter screen abuts against the bottom of the material frame, the filter screen can be better fixed, and the filter screen is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen drying technology, and in particular to a nitrogen dryer. Background Technology

[0002] Nitrogen is a colorless, odorless, and tasteless gas with very stable chemical properties. It is one of the most abundant components of the atmosphere. Nitrogen needs to be kept dry during storage and use to prevent it from reacting with water or other substances. The dryness and cleanliness of nitrogen, free of water and oil, gives it advantages in many applications, thus necessitating a nitrogen dryer. Utility Model Content

[0003] The purpose of this invention is to provide a nitrogen dryer to solve the problem mentioned in the background art that nitrogen needs to be kept dry during storage and use to prevent it from reacting with water or other substances.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen dryer, comprising a first drying chamber and a second drying chamber. The tops of both the first and second drying chambers are fixedly connected to a cover by bolts. An air inlet pipe is fixedly connected to the top of each cover. An air outlet pipe is provided on the outer side of both the first and second drying chambers. An air supply pipe is fixedly connected to the air outlet pipe on the outer side of the first drying chamber. One end of the air supply pipe is fixedly connected to the air inlet pipe on the top of the second drying chamber. A filter mechanism is provided on the inner side of both the first and second drying chambers. The filter mechanism includes an inclined surface and a collection box. The first and second drying chambers are equipped with an inclined surface at the bottom of their inner cavities. A collection box is provided at the bottom of the inner cavities of both the first and second drying chambers. An installation frame is fixedly connected to the inner sidewalls of both the first and second drying chambers. A filter screen is slidably connected to the inner side of the installation frame. A material frame is provided on the inner side of both the first and second drying chambers. An installation mechanism is provided at the connection between the material frame and the first drying chamber. Calcium oxide is placed in the material frame inside the first drying chamber, and activated alumina is placed in the material frame inside the second drying chamber.

[0005] Preferably, an installation groove is provided between the mounting frame and the inner wall of the first drying oven, and the inner wall of the installation groove is in contact with the outer wall of the filter screen frame.

[0006] Preferably, one side of the filter screen is attached to the inner wall of the first drying chamber, and the top of the filter screen abuts against the bottom of the material frame.

[0007] Preferably, the installation mechanism includes an installation protrusion, a limiting groove, an anti-detachment rod, a pin hole, a slot, a fixing frame, a pin rod, and a tension spring. The outer side of the material frame is integrally formed with an installation protrusion, and the outer side of the installation protrusion is slidably connected to the limiting groove. The inner side of the first drying box is fixedly connected with an anti-detachment rod, and one end of the anti-detachment rod has a pin hole extending through its outer side. The top of the installation protrusion has a slot extending through its outer side. The top of the material frame is fixedly connected with a fixing frame, and one side of the fixing frame is slidably connected with a pin rod. The outer side of the pin rod is fixedly connected with a tension spring.

[0008] Preferably, one end of the tension spring is fixedly connected to one side of the fixing frame.

[0009] Preferably, the inner wall of the pin hole is adapted to the outer wall of one end of the pin rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, nitrogen gas is injected into the first drying chamber through the inlet pipe. Calcium oxide is placed in the material frame inside the first drying chamber. The nitrogen gas passes through the material frame and is dried by the calcium oxide. The initially dried nitrogen gas then enters the second drying chamber through the supply pipe, undergoes secondary drying by the activated alumina inside the second drying chamber, and is discharged through the outlet pipe, thus achieving the drying effect. The inclined surface and collection box can collect small pieces of activated alumina and calcium oxide. The filter screen can also filter the material, with its top abutting against the bottom of the material frame for better fixation and easy cleaning. Activated alumina or calcium oxide is placed in the material frame, and the mounting protrusion of the material frame slides into the limiting groove, allowing the anti-detachment rod to engage with the slot. Then, the pin is pulled, stretching the tension spring. After the material frame is fully inserted, the pin is released, the tension spring rebounds, and the pin is inserted into the pin hole, thus fixing the material frame and facilitating material replacement. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the mounting protrusion and the limiting slide groove used in conjunction with this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the mounting bracket and filter screen used together in this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the anti-detachment rod and pin hole used in conjunction with this utility model;

[0015] Figure 5 This is a utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. First drying oven; 2. Second drying oven; 3. Oven lid; 4. Air inlet pipe; 5. Air outlet pipe; 6. Air supply pipe; 7. Inclined surface; 8. Collection box; 9. Mounting frame; 10. Filter screen; 11. Material frame; 12. Mounting protrusion; 13. Limiting groove; 14. Anti-detachment rod; 15. Pin hole; 16. Slot; 17. Fixing frame; 18. Pin rod; 19. Tension spring. 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] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0019] Example

[0020] Please see Figure 1-5This utility model discloses a nitrogen dryer, comprising a first drying chamber 1 and a second drying chamber 2. The tops of both the first and second drying chambers 1 and 2 are fixedly connected to a cover 3 by bolts. An air inlet pipe 4 is fixedly connected to the top of the cover 3. An air outlet pipe 5 is provided on the outer side of both the first and second drying chambers 1. An air supply pipe 6 is fixedly connected to the air outlet pipe 5 on the outer side of the first drying chamber 1, and one end of the air supply pipe 6 is fixedly connected to the air inlet pipe 4 on the top of the second drying chamber 2. A filter mechanism is provided on the inner side of both the first and second drying chambers 1 and 2. The filter mechanism includes an inclined surface 7, a collection box 8, a mounting frame 9, a filter screen 10, and a material frame 11. An inclined surface 7 is provided at the bottom of the inner cavity of both the first and second drying chambers 1 and 2. A collection box 8 is provided at the bottom of the inner cavity of both the first and second drying chambers 1 and 2. A mounting frame 9 is fixedly connected to the side wall of the inner cavity of both the first and second drying chambers 1 and 2. A filter screen 10 is slidably connected to the inner side of the mounting frame 9. The first and second drying chambers 1 and 2... Material frames 11 are provided on the inner side of each drying chamber 1. An installation mechanism is provided at the connection between the material frames 11 and the first drying chamber 1. Calcium oxide is placed in the material frames 11 inside the first drying chamber 1, and activated alumina is placed in the material frames 11 inside the second drying chamber 2. During use, nitrogen gas is injected into the first drying chamber 1 through the air inlet pipe 4. Since calcium oxide is placed in the material frames 11 inside the first drying chamber 1, the nitrogen gas passes through the material frames 11 and the calcium oxide to dry the nitrogen gas. Then, the nitrogen gas after the first drying passes through the air supply pipe 6 into the second drying chamber 2, passes through the activated alumina inside the second drying chamber 2 for secondary drying, and is discharged through the air outlet pipe 5, thereby achieving the drying effect. The inclined surface 7 and the collection box 8 can collect small pieces of activated alumina and calcium oxide, and the filter screen 10 can play a filtering role. The top of the filter screen 10 abuts against the bottom of the material frames 11, which can better fix the filter screen 10 and facilitate cleaning the filter screen 10.

[0021] To facilitate nitrogen drying, an installation groove is provided between the mounting frame 9 and the inner wall of the first drying chamber 1, and the inner wall of the installation groove is in contact with the outer wall of the filter screen 10 frame.

[0022] To facilitate nitrogen drying, one side of the filter screen 10 is attached to the inner wall of the first drying chamber 1, and the top of the filter screen 10 abuts against the bottom of the material frame 11.

[0023] To facilitate the installation of the material frame 11, the installation mechanism includes a mounting protrusion 12, a limiting slide groove 13, an anti-detachment rod 14, a pin hole 15, a slot 16, a fixing bracket 17, a pin 18, and a tension spring 19. The mounting protrusion 12 is integrally formed on the outer side of the material frame 11, and the limiting slide groove 13 is slidably connected to the outer side of the mounting protrusion 12. The anti-detachment rod 14 is fixedly connected to the inner side of the first drying chamber 1. A pin hole 15 is provided through the outer side of one end of the anti-detachment rod 14, and a slot 16 is provided through the top of the mounting protrusion 12. A fixing bracket 17 is fixedly connected to the top of the material frame 11. The frame 17 has a pin 18 that slides through one side. A tension spring 19 is fixedly connected to the outside of the pin 18. Activated alumina or calcium oxide is placed into the material frame 11. Then, the mounting protrusion 12 of the material frame 11 is slid into the limiting groove 13, so that the anti-detachment rod 14 is inserted into the slot 16. Then, the pin 18 is pulled, thereby stretching the tension spring 19. After the material frame 11 is fully inserted, the pin 18 is released, the tension spring 19 rebounds, and the pin 18 is inserted into the pin hole 15, thereby fixing the material frame 11 and facilitating the replacement of materials in the material frame 11.

[0024] Furthermore, one end of the tension spring 19 is fixedly connected to one side of the fixing bracket 17.

[0025] Furthermore, the inner wall of the pin hole 15 is adapted to the outer wall of one end of the pin rod 18.

[0026] Working principle: In operation, nitrogen gas is injected into the first drying chamber 1 through the inlet pipe 4. Calcium oxide is placed in the material frame 11 inside the first drying chamber 1. The nitrogen gas passes through the material frame 11 and the calcium oxide, drying the nitrogen. The initially dried nitrogen then enters the second drying chamber 2 through the supply pipe 6, undergoes secondary drying through the activated alumina inside the second drying chamber 2, and is discharged through the outlet pipe 5, thus achieving the drying effect. The inclined surface 7 and the collection box 8 collect small pieces of activated alumina and calcium oxide, and the filter screen 10 can... To achieve a filtering effect, the top of the filter screen 10 abuts against the bottom of the material frame 11, which can better fix the filter screen 10 and facilitate cleaning of the filter screen 10. Activated alumina or calcium oxide is placed into the material frame 11, and then the mounting protrusion 12 of the material frame 11 is slid into the limiting groove 13, so that the anti-detachment rod 14 is inserted into the slot 16. Then, the pin rod 18 is pulled, thereby stretching the tension spring 19. After the material frame 11 is fully inserted, the pin rod 18 is released, the tension spring 19 rebounds, and the pin rod 18 is inserted into the pin hole 15, thereby fixing the material frame 11 and facilitating the replacement of the material in the material frame 11.

[0027] 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 nitrogen dryer, comprising a first drying chamber (1) and a second drying chamber (2), characterized in that: The tops of the first drying chamber (1) and the second drying chamber (2) are both fixedly connected to a cover (3) by bolts. The top of the cover (3) is fixedly connected to an air inlet pipe (4). An air outlet pipe (5) is provided on the outside of the first drying chamber (1) and the second drying chamber (2). An air supply pipe (6) is fixedly connected to the air outlet pipe (5) on the outside of the first drying chamber (1). One end of the air supply pipe (6) is fixedly connected to the air inlet pipe (4) on the top of the second drying chamber (2). A filter mechanism is provided on the inside of the first drying chamber (1) and the second drying chamber (2). The filter mechanism includes an inclined surface (7), a collection box (8), a mounting frame (9), a filter screen (10), and a material frame (11). The first drying chamber (1) The bottom of the inner cavity of the first drying box (1) and the second drying box (2) are provided with inclined surfaces (7). The bottom of the inner cavity of the first drying box (1) and the second drying box (2) are provided with collection boxes (8). The inner side walls of the first drying box (1) and the second drying box (2) are fixedly connected with mounting brackets (9). The inner side of the mounting brackets (9) is slidably connected with a filter screen (10). The inner side of the first drying box (1) and the second drying box (2) are provided with material frames (11). The connection between the material frames (11) and the first drying box (1) is provided with an installation mechanism. Calcium oxide is placed in the material frame (11) inside the first drying box (1), and activated alumina is placed in the material frame (11) inside the second drying box (2).

2. A nitrogen dryer according to claim 1, characterized in that: An installation groove is provided between the mounting bracket (9) and the inner wall of the first drying box (1), and the inner wall of the installation groove is in contact with the outer wall of the filter screen (10) frame.

3. A nitrogen dryer according to claim 1, characterized in that: One side of the filter screen (10) is attached to the inner wall of the first drying box (1), and the top of the filter screen (10) abuts against the bottom of the material frame (11).

4. A nitrogen dryer according to claim 1, characterized in that: The installation mechanism includes an installation protrusion (12), a limiting groove (13), an anti-detachment rod (14), a pin hole (15), a slot (16), a fixing frame (17), a pin (18), and a tension spring (19). The material frame (11) has an integrally formed installation protrusion (12) on its outer side. The limiting groove (13) is slidably connected to the outer side of the installation protrusion (12). The anti-detachment rod (14) is fixedly connected to the inner side of the first drying box (1). A pin hole (15) is opened through the outer side of one end of the anti-detachment rod (14). A slot (16) is opened through the top of the installation protrusion (12). The fixing frame (17) is fixedly connected to the top of the material frame (11). A pin (18) is slidably connected through one side of the fixing frame (17). A tension spring (19) is fixedly connected to the outer side of the pin (18).

5. A nitrogen dryer according to claim 4, characterized in that: One end of the tension spring (19) is fixedly connected to one side of the fixing frame (17).

6. A nitrogen dryer according to claim 4, characterized in that: The inner wall of the pin hole (15) is adapted to the outer wall of one end of the pin rod (18).

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