Nitrous oxide purification device

Abstract

The utility model discloses a nitrous oxide purification device, which belongs to the field of gas purification and comprises a mounting bottom plate, a gas inlet mechanism is mounted on one side of the upper surface of the mounting bottom plate, an adsorption processing mechanism is mounted on the upper surface of the mounting bottom plate, and the adsorption processing mechanism comprises a processing kettle fixedly connected to the upper surface of the mounting bottom plate; through cooperative use of the devices, the gas conveying pipe and the sealing cover are mounted on the surface of the processing kettle, so that the adsorbent shell is inserted into the processing kettle, the rotating rod is rotated, the fixing rod drives the adsorbent shell to rotate in the processing kettle, and therefore the adsorbent shell is in threaded connection with the mounting block; through the mutual action force between the gravity of components such as the mounting block and the elastic force of the abutting spring, the adsorbent shell is stably mounted in the processing kettle, and through the threaded connection of the conveying pipe and the gas collecting bottle, the gas conveying pipe is limited, so that the adsorbent shell is more stable when being mounted in the processing kettle.

Description

Technical Field

[0001] This utility model relates to the field of gas purification technology, specifically a nitrous oxide purification device. Background Technology

[0002] Nitrous oxide, also known as "laughing gas," has the chemical formula N₂O. At room temperature, nitrous oxide is a colorless, non-flammable gas with a slightly sweet odor. It has a mild anesthetic effect and can induce laughter. At high temperatures, nitrous oxide is a strong oxidizing agent similar to oxygen. Nitrous oxide has important medical uses, possessing anesthetic and pain-relieving effects, and is widely used as an anesthetic in surgery and dentistry.

[0003] The nitrous oxide gas prepared in this way usually has low purity and contains certain impurities such as water, carbon dioxide, nitrogen, nitric oxide, nitrogen dioxide and oxygen. These impurities seriously affect the quality of nitrous oxide, so further purification is needed to remove them.

[0004] To purify nitrous oxide, a nitrous oxide purification device is needed to process the nitrous oxide gas. Most existing nitrous oxide purification devices generally use an adsorbent shell to adsorb impurities inside the nitrous oxide to achieve the purpose of nitrous oxide purification. However, after the adsorbent shell has been used for a long time, the adsorption performance of the adsorbent shell decreases, and the adsorbent shell needs to be replaced.

[0005] The existing nitrous oxide purification equipment requires special tools to disassemble the adsorbent shell when replacing it, which makes the disassembly of the adsorbent shell inconvenient and affects the normal use of the nitrous oxide purification equipment.

[0006] Therefore, this invention provides a nitrous oxide purification device to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] This invention provides a nitrous oxide purification device, which aims to solve the problems mentioned in the background art, such as the need to prepare corresponding tools to disassemble the adsorbent shell when replacing the adsorbent shell in existing nitrous oxide purification devices, which makes the disassembly of the adsorbent shell inconvenient and affects the normal use of the nitrous oxide purification device.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: a nitrous oxide purification device, comprising a mounting base plate, an air inlet mechanism mounted on one side of the upper surface of the mounting base plate, and an adsorption processing mechanism mounted on the upper surface of the mounting base plate;

[0011] The adsorption processing mechanism includes a processing vessel fixedly connected to the upper surface of the mounting base plate and an outlet pipe fixedly connected to one side of the processing vessel. An installation ring is fixedly connected inside the processing vessel. A series of clamping springs are fixedly connected to the upper surface of the installation ring in a circular array. The upper surfaces of several clamping springs are collectively attached to an adsorbent shell. Fixing rods are fixedly connected to both sides of the upper surface of the adsorbent shell. A limiting disc is fixedly connected to the surfaces of two fixing rods. A rotating rod is fixedly connected to the surface of the limiting disc. A sealing cover is rotatably fitted onto the surface of the limiting disc. The sealing cover corresponds to the processing vessel. The rotating rod is rotatably connected to the sealing cover. The limiting disc is rotatably connected to the inside of the sealing cover. A cleaning mechanism is installed on the surface of the adsorbent shell.

[0012] As a preferred technical solution of this application, the air intake mechanism includes a gas collecting bottle fixedly connected to one side of the upper surface of the mounting base plate, an air intake pipe fixedly connected to one side of the upper surface of the gas collecting bottle, a conveying pipe threadedly connected to the upper surface of the gas collecting bottle, a gas supply pipe rotatably connected to the surface of the conveying pipe and communicating with the conveying pipe, an air valve installed on the surface of the gas supply pipe, and the gas supply pipe communicating with the processing vessel through a sealing cap.

[0013] As a preferred technical solution of this application, the cleaning mechanism includes a mounting block threaded to the surface of the adsorbent shell, the mounting block being slidably connected to the inside of the processing vessel, the surface of the mounting block being fixedly connected with connecting rods in a ring array, one end of each of the connecting rods being fixedly connected to four corresponding cleaning plates, and a limit mechanism being installed on the surface of the mounting block.

[0014] As a preferred technical solution of this application, the cleaning mechanism further includes an elastic plate fixedly connected to the inner arc surface of the mounting ring. The lower surface of the elastic plate is fixedly connected with arc-shaped plates in a ring array. The surfaces of several arc-shaped plates are jointly fixedly connected with a cleaning ring. The cleaning ring is in contact with the adsorbent shell, and the cleaning plate is in contact with the inner wall of the processing vessel.

[0015] As a preferred technical solution of this application, the limiting mechanism includes two hollow tubes that are fixedly connected to the middle of the inner wall of the processing vessel. A snap-fit ​​spring is fixedly connected inside the hollow tube. A limiting rod is fixedly connected to one end of the snap-fit ​​spring. The limiting rod is slidably connected to the hollow tube.

[0016] The limiting mechanism also includes two limiting grooves respectively opened on both sides of the surface of the mounting block, and the limiting grooves correspond to the limiting rods.

[0017] As a preferred technical solution of this application, a conical block is fixedly connected to the inner wall of the processing vessel, the conical block is connected to the processing vessel, and the conical block corresponds to the cleaning plate.

[0018] (III) Beneficial Effects

[0019] By installing a gas delivery pipe, the gas delivery pipe and the sealing cap are installed on the surface of the processing vessel, allowing the adsorbent shell to be inserted into the interior of the processing vessel. Rotating the rotating rod causes the fixed rod to rotate the adsorbent shell inside the processing vessel, thereby connecting the adsorbent shell to the mounting block via a thread. Through the interaction between the gravity of the mounting block and other components and the elastic force of the clamping spring, the adsorbent shell is stably installed inside the processing vessel. Furthermore, the gas delivery pipe is threadedly connected to the gas collecting bottle, limiting the position of the gas delivery pipe. This makes the adsorbent shell more stable when installed inside the processing vessel and makes the installation of the adsorbent shell more convenient.

[0020] When the adsorbent housing needs to be replaced, the delivery pipe is disconnected from the gas collecting bottle, thereby causing the delivery pipe and the sealing cap to detach from the processing vessel simultaneously. By removing the sealing cap, the adsorbent housing moves synchronously, causing the mounting block to move along with it. The mounting block then moves the cleaning plate to clean the inside of the processing vessel, collecting the impurities on the conical block. This not only facilitates the cleaning of the inside of the processing vessel but also makes the installation and removal of the adsorbent housing easier, improving the efficiency of adsorbent housing replacement. Furthermore, the elasticity of the retaining spring makes it easier to remove the adsorbent housing from the processing vessel. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a nitrous oxide purification device.

[0022] Figure 2 This is a schematic diagram of the adsorption processing mechanism in a nitrous oxide purification device.

[0023] Figure 3 This is a schematic diagram of the cleaning mechanism in a nitrous oxide purification device.

[0024] Figure 4 This is a schematic diagram of the structure of a conical block in a nitrous oxide purification device.

[0025] Figure 5 This is a schematic diagram of the cleaning ring in a nitrous oxide purification device.

[0026] In the picture:

[0027] 1. Mounting base plate; 2. Processing vessel; 3. Mounting ring; 4. Clamping spring; 5. Adsorbent shell; 6. Fixing rod; 7. Limiting plate; 8. Rotating rod; 9. Sealing cap; 10. Gas collecting bottle; 11. Delivery pipe; 12. Mounting block; 13. Connecting rod; 14. Cleaning plate; 15. Elastic plate; 16. Arc plate; 17. Cleaning ring; 18. Hollow tube; 19. Snap-fit ​​spring; 20. Limiting rod; 21. Limiting groove; 22. Conical block; 23. Gas delivery pipe. Detailed Implementation

[0028] 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.

[0029] This utility model provides a nitrous oxide purification device, such as... Figures 1-5 As shown, a nitrous oxide purification device includes a mounting base plate 1. An air inlet mechanism is mounted on one side of the upper surface of the mounting base plate 1. The air inlet mechanism includes a gas collecting bottle 10 fixedly connected to one side of the upper surface of the mounting base plate 1. An air inlet pipe is fixedly connected to one side of the upper surface of the gas collecting bottle 10. A delivery pipe 11 is threadedly connected to the surface of the gas collecting bottle 10, so that a delivery pipe 23 and a sealing cap 9 are mounted on the surface of a processing vessel 2, allowing the adsorbent shell 5 to be inserted into the interior of the processing vessel 2. Nitrous oxide is delivered to the interior of the gas collecting bottle 10 through the air inlet pipe. The delivery pipe 11 is threadedly connected to the upper surface of the gas collecting bottle 10. A delivery pipe 23, communicating with the delivery pipe 11, is rotatably connected to the surface of the delivery pipe 11. A gas delivery pipe 23 is mounted on the surface of the delivery pipe 23. The valve and gas supply pipe 23 are connected to the processing vessel 2 through the sealing cover 9. An adsorption processing mechanism is installed on the upper surface of the mounting base plate 1. The adsorption processing mechanism includes the processing vessel 2 fixedly connected to the upper surface of the mounting base plate 1 and the gas outlet pipe fixedly connected to one side of the processing vessel 2. An installation ring 3 is fixedly connected inside the processing vessel 2. The upper surface of the installation ring 3 is fixedly connected with a retaining spring 4 in a ring array. The upper surfaces of several retaining springs 4 are together attached to the adsorbent shell 5. When it is necessary to purify nitrous oxide, the gas valve is opened so that nitrous oxide enters the interior of the processing vessel 2 through the delivery pipe 11 and the gas supply pipe 23. Through the setting of the adsorbent shell 5, the impurities contained in the nitrous oxide are adsorbed, thereby purifying the nitrous oxide.

[0030] Fixed rods 6 are fixedly connected to both sides of the upper surface of the adsorbent shell 5. A limiting plate 7 is fixedly connected to the surface of the two fixed rods 6. A rotating rod 8 is fixedly connected to the surface of the limiting plate 7. A sealing cover 9 is rotatably sleeved on the surface of the limiting plate 7. The sealing cover 9 corresponds to the processing vessel 2. The rotating rod 8 is rotatably connected to the sealing cover 9. The limiting plate 7 is rotatably connected to the inside of the sealing cover 9. When the adsorbent shell 5 needs to be replaced, the gas supply pipe 23 and the delivery pipe 11 are disassembled, so that the sealing cover 9 moves the adsorbent shell 5 out of the processing vessel 2, making it easier to replace the adsorbent shell 5. A cleaning mechanism is installed on the surface of the adsorbent shell 5. The cleaning mechanism includes a mounting block 12 threaded to the surface of the adsorbent shell 5. When the adsorbent shell 5 is inserted into the processing vessel 2, the adsorbent shell 5 is inserted into the inside of the mounting block 12. By rotating the rotating rod 8, the limiting plate 7 is rotated, so that the fixed rod 6 drives the adsorbent shell 5 to rotate synchronously, so that the adsorbent shell 5 is threadedly connected to the mounting block 12.

[0031] The limiting mechanism also includes two limiting grooves 21 respectively opened on both sides of the surface of the mounting block 12. The mounting block 12 is slidably connected to the inside of the processing vessel 2. The surface of the mounting block 12 is fixedly connected with connecting rods 13 in a ring array. One end of several connecting rods 13 is fixedly connected to four corresponding cleaning plates 14. Through the force between the gravity of the mounting block 12 and the cleaning plate 14 and the elastic force of the clamping spring 4, the adsorbent shell 5 is more stably installed inside the processing vessel 2. The cleaning plate 14 is in contact with the inner wall of the processing vessel 2. Through the setting of the gas supply pipe 23 and the sealing cover 9, the adsorbent shell 5 is limited, making the adsorbent shell 5 more stable during use. When the adsorbent shell 5 moves, the mounting block 12 moves synchronously, so that the connecting rods 13 drive the cleaning plate 14 to slide on the inner wall of the processing vessel 2 to clean the inside of the processing vessel 2.

[0032] The surface of the mounting block 12 is equipped with a limiting mechanism. The cleaning mechanism also includes an elastic plate 15 fixedly connected to the inner arc surface of the mounting ring 3. The lower surface of the elastic plate 15 is fixedly connected with an arc plate 16 in a ring array. The surfaces of several arc plates 16 are fixedly connected with a cleaning ring 17. The cleaning ring 17 is in contact with the adsorbent shell 5. When the adsorbent shell 5 moves, its surface is in contact with the cleaning ring 17. The surface of the adsorbent shell 5 is cleaned by the cleaning ring 17, which not only makes the cleaning of the processing vessel 2 more convenient, but also makes the cleaning of the adsorbent shell 5 more convenient. The inner wall of the processing vessel 2 is fixedly connected with a conical block 22. The conical block 22 is connected to the processing vessel 2 and corresponds to the cleaning plate 14. The setting of the conical block 22 collects the cleaned impurities, which facilitates the cleaning by the staff.

[0033] The limiting mechanism includes two hollow tubes 18 that are fixedly connected to the middle of the inner wall of the processing vessel 2. A snap-fit ​​spring 19 is fixedly connected inside the hollow tube 18. One end of the snap-fit ​​spring 19 is fixedly connected to a limiting rod 20. The limiting rod 20 is slidably connected to the hollow tube 18. Through the mutual cooperation between the limiting groove 21 and the limiting rod 20, when the mounting block 12 moves the limiting groove 21 to the same horizontal level as the limiting rod 20, the elastic force of the snap-fit ​​spring 19 causes the limiting rod 20 to be inserted into the inside of the limiting groove 21, limiting the mounting block 12 and making the mounting block 12 snap into the inside of the processing vessel 2. This makes it more convenient to install the adsorbent shell 5 for the second time. The limiting groove 21 and the limiting rod 20 correspond to each other.

[0034] Specifically, when this nitrous oxide purification device is in use: the delivery pipe 11 is threaded to the surface of the gas collecting bottle 10, so that the gas delivery pipe 23 and the sealing cap 9 are installed on the surface of the processing vessel 2, and the adsorbent shell 5 is inserted into the interior of the processing vessel 2. Nitrous oxide is delivered to the interior of the gas collecting bottle 10 through the gas inlet pipe. When it is necessary to purify nitrous oxide, the gas valve is opened, so that nitrous oxide enters the interior of the processing vessel 2 through the delivery pipe 11 and the gas delivery pipe 23. Through the setting of the adsorbent shell 5, the impurities contained in the nitrous oxide are adsorbed, thereby purifying nitrous oxide.

[0035] When the adsorbent housing 5 is inserted into the processing vessel 2, the adsorbent housing 5 is inserted into the mounting block 12. By rotating the rotating rod 8, it drives the limiting plate 7 to rotate, thereby causing the fixing rod 6 to drive the adsorbent housing 5 to rotate synchronously, so that the adsorbent housing 5 is threadedly connected to the mounting block 12. Through the force between the gravity of the mounting block 12 and the cleaning plate 14 and the elastic force of the clamping spring 4, the adsorbent housing 5 is installed more stably inside the processing vessel 2. Furthermore, the setting of the gas supply pipe 23 and the sealing cover 9 limits the position of the adsorbent housing 5, making the adsorbent housing 5 more stable during use.

[0036] When the adsorbent housing 5 needs to be replaced, the gas supply pipe 23 and the delivery pipe 11 are disassembled, allowing the sealing cover 9 to move the adsorbent housing 5 out of the processing vessel 2, making the replacement of the adsorbent housing 5 more convenient. When the adsorbent housing 5 moves, the mounting block 12 moves simultaneously, causing the connecting rod 13 to slide the cleaning plate 14 on the inner wall of the processing vessel 2 to clean the inside of the processing vessel 2. At the same time, when the adsorbent housing 5 moves, its surface comes into contact with the cleaning ring 17, and the surface of the adsorbent housing 5 is cleaned by the cleaning ring 17. This not only makes the cleaning of the processing vessel 2 more convenient, but also makes the cleaning of the adsorbent housing 5 more convenient. The conical block 22 is set to collect the cleaned impurities, making it easier for the staff to clean.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nitrous oxide purification device, comprising a mounting base plate (1), characterized in that: An air intake mechanism is installed on one side of the upper surface of the mounting base plate (1), and an adsorption processing mechanism is installed on the upper surface of the mounting base plate (1). The adsorption processing mechanism includes a processing vessel (2) fixedly connected to the upper surface of the mounting base plate (1) and an exhaust pipe fixedly connected to one side of the processing vessel (2). An installation ring (3) is fixedly connected inside the processing vessel (2). A retaining spring (4) is fixedly connected in a ring array on the upper surface of the installation ring (3). The upper surfaces of several retaining springs (4) are together attached to an adsorbent shell (5). Fixing rods (6) are fixedly connected to both sides of the upper surface of the adsorbent shell (5). A limiting plate (7) is fixedly connected to the surfaces of the two fixing rods (6). A rotating rod (8) is fixedly connected to the surface of the limiting plate (7). A sealing cover (9) is rotatably sleeved on the surface of the limiting plate (7). The sealing cover (9) corresponds to the processing vessel (2). The rotating rod (8) is rotatably connected to the sealing cover (9). The limiting plate (7) is rotatably connected to the inside of the sealing cover (9). A cleaning mechanism is installed on the surface of the adsorbent shell (5).

2. The nitrous oxide purification apparatus according to claim 1, characterized in that: The air intake mechanism includes a gas collecting bottle (10) fixedly connected to one side of the upper surface of the mounting base plate (1). An air intake pipe is fixedly connected to one side of the upper surface of the gas collecting bottle (10). A delivery pipe (11) is threadedly connected to the upper surface of the gas collecting bottle (10). A gas supply pipe (23) connected to the delivery pipe (11) is rotatably connected to the surface of the delivery pipe (11). A gas valve is installed on the surface of the gas supply pipe (23). The gas supply pipe (23) is connected to the processing vessel (2) through a sealing cap (9).

3. The nitrous oxide purification apparatus according to claim 1, characterized in that: The cleaning mechanism includes a mounting block (12) threaded to the surface of the adsorbent housing (5), the mounting block (12) being slidably connected to the inside of the processing vessel (2), the surface of the mounting block (12) being fixedly connected with connecting rods (13) in a ring array, one end of several connecting rods (13) being fixedly connected to four corresponding cleaning plates (14), and a limiting mechanism being installed on the surface of the mounting block (12).

4. The nitrous oxide purification apparatus according to claim 3, characterized in that: The cleaning mechanism also includes an elastic plate (15) fixedly connected to the inner arc surface of the mounting ring (3). The lower surface of the elastic plate (15) is fixedly connected with an arc plate (16) in a ring array. The surfaces of several arc plates (16) are fixedly connected with a cleaning ring (17). The cleaning ring (17) is in contact with the adsorbent shell (5). The cleaning plate (14) is in contact with the inner wall of the processing vessel (2).

5. The nitrous oxide purification apparatus according to claim 3, characterized in that: The limiting mechanism includes two hollow tubes (18) that are fixedly connected to the middle of the inner wall of the processing vessel (2). A snap-fit ​​spring (19) is fixedly connected inside the hollow tube (18). A limiting rod (20) is fixedly connected to one end of the snap-fit ​​spring (19). The limiting rod (20) is slidably connected to the hollow tube (18). The limiting mechanism also includes two limiting grooves (21) respectively opened on both sides of the surface of the mounting block (12), and the limiting grooves (21) correspond to the limiting rod (20).

6. The nitrous oxide purification apparatus according to claim 1, characterized in that: A conical block (22) is fixedly connected to the inner wall of the processing vessel (2). The conical block (22) is connected to the processing vessel (2) and corresponds to the cleaning plate (14).

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