Nitrogen purification device

Abstract

The utility model discloses a nitrogen purification device, which belongs to the technical field of nitrogen purification and comprises a reaction tank and a nitrogen purification mechanism positioned in an inner cavity of the reaction tank, a gas inlet pipe is fixedly connected to the top wall of the reaction tank, a gas outlet pipe is fixedly connected to the bottom wall of the reaction tank, and a servo motor is horizontally mounted on one side wall of the reaction tank. Fixing rods are embedded in the two sides of an inner cavity of the reaction tank respectively, inner cavities of the two fixing rods are located on the opposite sides of the two fixing rods, a screw rod and a limiting rod are arranged in the two fixing rods respectively, an output shaft of the servo motor is coaxially connected with the screw rod, the two ends of the limiting rod are welded to the fixing rods, and the limiting rod is connected with the servo motor. A storage plate is horizontally arranged in the center of the inner cavity of the reaction tank, sliding plates are symmetrically welded to the two sides of the storage plate, and lug plates are welded to the sides, facing the servo motor, of the two sliding plates. According to the nitrogen purification device, the heating area of the surface of the metal bar is increased, so that the reaction between the metal bar and oxygen is quicker, and the nitrogen purification efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of nitrogen purification, in particular to a nitrogen purification device. Background Art

[0002] Nitrogen purification mainly removes oxygen from nitrogen to improve the purity of nitrogen. Currently, nitrogen is often purified by adding nitrogen into a sealed device to react with the heated metal in the sealed device to consume oxygen.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology: in the current device for nitrogen purification, when the metal is heated and reacts with oxygen, the hot spot area of ​​the metal is very small, and the metal itself cannot move, resulting in a very small range of oxidation on the metal, so the efficiency of oxygen consumption is low, resulting in low nitrogen purification efficiency.

[0004] To this end, we proposed a nitrogen purification device to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a nitrogen purification device, which increases the heating area of ​​the metal rod surface, makes it react with oxygen more quickly, thereby improving the efficiency of nitrogen purification, and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A nitrogen purification device comprises a reaction tank and a nitrogen purification mechanism located in the inner cavity of the reaction tank, wherein an air inlet pipe is fixedly connected to the top wall of the reaction tank, and an air outlet pipe is fixedly connected to the bottom wall of the reaction tank, a servo motor is horizontally installed on one side wall of the reaction tank, and fixing rods are respectively inlaid and installed on both sides of the inner cavity of the reaction tank, wherein the inner cavities of the two fixing rods are located on the sides facing each other, and a screw rod and a limit rod are respectively arranged in the two fixing rods, wherein the output shaft of the servo motor is coaxially connected to the screw rod, and both ends of the limit rod are welded to the fixing rod;

[0008] A storage plate is horizontally arranged at the center of the inner cavity of the reaction tank, wherein slide plates are symmetrically welded on both sides of the storage plate, and ear plates are welded on the side of the two slide plates facing the servo motor, wherein one ear plate is threadedly sleeved on the screw, and the other ear plate is slidably sleeved on the limit rod, a plurality of partitions distributed at equal intervals are fixedly welded in the inner cavity of the storage plate, a plurality of metal rods are arranged in the inner cavity of the storage plate, and the plurality of metal rods are separated by a plurality of partitions, and an electric heating plate is fixedly installed at the bottom of the storage plate.

[0009] As a preferred embodiment, a valve is installed on both the air inlet pipe and the air outlet pipe; the air inlet pipe and the air outlet pipe are opened and closed by the valve.

[0010] As a preferred embodiment, the screw rod and the limiting rod are both arranged horizontally, and both ends of the screw rod are rotatably connected to the fixing rod; so that the screw rod can operate stably under the drive of the servo motor.

[0011] As a preferred embodiment, a mounting groove is formed on the bottom wall of the storage plate, wherein the electric heating plate is fixedly installed in the mounting groove; the servo motor and the electric heating plate need to be powered by external power facilities.

[0012] As a preferred embodiment, a slot is penetrated through the side of the reaction tank facing away from the servo motor, wherein a side sealing plate is inserted into the slot, and one side wall of the side sealing plate is welded to the storage plate; thereby, the slot is closed by the side sealing plate, and the storage plate and the metal rod thereon can be taken out from the inner cavity of the reaction tank for addition and replacement.

[0013] In summary, the technical effects and advantages of the utility model are as follows:

[0014] The nitrogen purification device, by driving the servo motor to operate and drive the screw to operate, can not only realize the input and output of the placement plate and the input and output of the metal rod to be heated, but also enable the placement plate to make a short-distance reciprocating translation in the reaction tank, so that the metal rod can roll within its moving range, thereby increasing the heating area of ​​the metal rod surface, making it react with oxygen more quickly, thereby improving the efficiency of nitrogen purification. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a horizontal cross-sectional view of the utility model;

[0017] Figure 3 It is a vertical cross-sectional view of the utility model.

[0018] In the figure: 1. reaction tank; 2. air inlet pipe; 3. air outlet pipe; 4. valve; 5. servo motor; 6. fixing rod; 7. screw rod; 8. limit rod; 9. slide plate; 10. storage plate; 11. partition plate; 12. metal rod; 13. installation groove; 14. electric heating plate; 15. slot; 16. side sealing plate; 17. ear plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3, a nitrogen purification device, comprising a reaction tank 1 and a nitrogen purification mechanism located in the inner cavity of the reaction tank 1, an air inlet pipe 2 is fixedly connected to the top wall of the reaction tank 1, and an air outlet pipe 3 is fixedly connected to the bottom wall of the reaction tank 1, a valve 4 is installed on each of the air inlet pipe 2 and the air outlet pipe 3, and the air inlet pipe 2 and the air outlet pipe 3 are opened and closed by the valve 4;

[0021] A servo motor 5 is horizontally installed on one side wall of the reaction tank 1, and fixed rods 6 are respectively inlaid and installed on both sides of the inner cavity of the reaction tank 1, wherein the inner cavities of the two fixed rods 6 are located on the sides facing each other, and screw rods 7 and limiting rods 8 are respectively arranged in the two fixed rods 6, wherein the output shaft of the servo motor 5 is coaxially connected with the screw rod 7, and both ends of the limiting rod 8 are welded to the fixed rod 6, and the screw rod 7 and the limiting rod 8 are both horizontally arranged, and both ends of the screw rod 7 are rotatably connected to the fixed rod 6, so that the screw rod 7 can stably operate under the drive of the servo motor 5;

[0022] A storage plate 10 is horizontally arranged at the center of the inner cavity of the reaction tank 1, wherein slide plates 9 are symmetrically welded on both sides of the storage plate 10, and ear plates 17 are welded on the side of the two slide plates 9 facing the servo motor 5, wherein one ear plate 17 is threadedly sleeved on the screw 7, and the other ear plate 17 is slidably sleeved on the limit rod 8, a plurality of equally spaced partitions 11 are fixedly welded in the inner cavity of the storage plate 10, a plurality of metal rods 12 are arranged in the inner cavity of the storage plate 10, and the plurality of metal rods 12 are separated by a plurality of partitions 11, an electric heating plate 14 is fixedly installed at the bottom of the storage plate 10, and a mounting groove 13 is formed on the bottom wall of the storage plate 10, wherein the electric heating plate 14 is fixedly installed in the mounting groove 13, and the servo motor 5 and the electric heating plate 14 need to be powered by external power facilities;

[0023] It is worth noting that a slot 15 is provided through the side of the reaction tank 1 facing away from the servo motor 5, wherein a side sealing plate 16 is inserted into the slot 15, and a side wall of the side sealing plate 16 is welded to the storage plate 10, so that the slot 15 is closed by the side sealing plate 16, and the storage plate 10 and the metal rod 12 thereon can be taken out from the inner cavity of the reaction tank 1 for addition and replacement.

[0024] The nitrogen purification device: first, nitrogen is injected into the inner cavity of the reaction tank 1 through the air inlet pipe 2, then the valve 4 is quickly used to close the air inlet pipe 2 (the valve 4 on the air outlet pipe 3 is also closed), the electric heating plate 14 is powered on and the plurality of metal rods 12 in the inner cavity are heated through the placement plate 10, so that the metal rods 12 react with the oxygen mixed in the nitrogen to produce an oxidation reaction, thereby consuming the oxygen. In this process, the servo motor 5 can be driven to operate and drive the screw 7 to operate, so that the placement plate 10 and the slide plates 9 and the ear plates 17 on both sides thereof are moved along the limit rod 8 for a short distance. The reciprocating translation (so that nitrogen cannot leak through the slot 15) causes the multiple metal rods 12 to roll within their moving range, so that the surface area of ​​the metal rods 12 is heated larger, the oxidation is more thorough, and more oxygen is consumed during oxidation (the metal rods 12 can be made of copper or other suitable materials); after the reaction, the valve 4 opens the outlet pipe 3 to discharge pure nitrogen, and at the same time drives the servo motor 5 to drive the screw 7 to rotate unidirectionally, so that the side sealing plate 16 and the storage plate 10 extend from the slot 15, thereby facilitating the removal of the metal rods 12 for replacement.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nitrogen purification device, comprising a reaction tank (1) and a nitrogen purification mechanism located in the inner cavity of the reaction tank (1), characterized in that: The top wall of the reaction tank (1) is fixedly connected to an air inlet pipe (2), and the bottom wall of the reaction tank (1) is fixedly connected to an air outlet pipe (3), a servo motor (5) is horizontally mounted on one side wall of the reaction tank (1), and fixing rods (6) are respectively inlaid and mounted on both sides of the inner cavity of the reaction tank (1), wherein the inner cavities of the two fixing rods (6) are located on the sides facing each other, and the two fixing rods (6) are respectively provided with a screw rod (7) and a limit rod (8), wherein the output shaft of the servo motor (5) is coaxially connected to the screw rod (7), and both ends of the limit rod (8) are welded to the fixing rod (6); A storage plate (10) is horizontally arranged at the center of the inner cavity of the reaction tank (1), wherein slide plates (9) are symmetrically welded on both sides of the storage plate (10), and ear plates (17) are welded on the sides of the two slide plates (9) facing the servo motor (5), wherein one of the ear plates (17) is threadedly sleeved on the screw rod (7), and the other ear plate (17) is slidably sleeved on the limit rod (8), a plurality of partition plates (11) distributed at equal intervals are fixedly welded in the inner cavity of the storage plate (10), a plurality of metal rods (12) are arranged in the inner cavity of the storage plate (10), and the plurality of metal rods (12) are separated by a plurality of partition plates (11), and an electric heating plate (14) is fixedly installed at the bottom of the storage plate (10).

2. The nitrogen purification device according to claim 1, characterized in that: A valve (4) is installed on each of the air inlet pipe (2) and the air outlet pipe (3).

3. The nitrogen purification device according to claim 1, characterized in that: The screw rod (7) and the limiting rod (8) are both arranged horizontally, and both ends of the screw rod (7) are rotatably connected to the fixing rod (6).

4. The nitrogen purification device according to claim 1, characterized in that: The bottom wall of the storage plate (10) is formed with a mounting groove (13), wherein the electric heating plate (14) is fixedly mounted in the mounting groove (13).

5. The nitrogen purification device according to claim 1, characterized in that: A slot (15) is provided through the side of the reaction tank (1) facing away from the servo motor (5), wherein a side sealing plate (16) is inserted into the slot (15), and a side wall of the side sealing plate (16) is welded to the storage plate (10).

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