Preparation device of high-purity nitrous oxide

Abstract

The high-purity nitrous oxide preparation device comprises a reaction kettle body, two groups of first supporting legs are fixedly connected to the bottom of the reaction kettle body, and two rollers are fixedly connected to the middle, close to a fixing plate, of the reaction kettle body; through the structural design that a plurality of ejector pins are mounted in the middle of the second filter plate and are matched with the first filter plate for use, solid particles in the middle of the first filter plate are cleaned in time, so that a reaction mixture is continuously and efficiently filtered through the filter plates; according to the nitrous oxide preparation device, abnormal pressure change in the reaction kettle body and fluctuation of reactant flow caused by blockage of the first filtering plate are avoided, stable operation of the whole nitrous oxide preparation device is facilitated due to stable filtering efficiency, the production efficiency is improved, solid particle impurities in a reaction mixture can be more effectively removed due to a good filtering effect, and the product quality is improved. And the purity of the nitrous oxide gas entering the subsequent treatment process is higher.

Description

Technical Field

[0001] This utility model relates to the field of high-purity nitrous oxide preparation technology, specifically, it mainly relates to a high-purity nitrous oxide preparation apparatus. Background Technology

[0002] With the development of technology, a high-purity nitrous oxide preparation device is a set of equipment systems used to produce high-purity nitrous oxide. Nitrous oxide is a colorless gas with a sweet taste and has wide applications in many fields such as industry, medicine, and food. For example, it is used as an anesthetic in medicine and in food processing to make cream. High-purity nitrous oxide usually requires extremely low impurity content, so its preparation device needs to achieve this goal through a series of complex processes and unit operations.

[0003] Traditional preparation devices have limited filtration efficiency. For complex reaction products, it is difficult to completely remove impurities. A single filtration can only intercept larger solid particles. Moreover, as the filtration process proceeds, impurities gradually accumulate on the surface of the filter plate, causing the filtration speed to gradually slow down. Due to the non-removable design of the filter plate, it is difficult to clean it effectively. Unlike detachable filter components, it cannot be removed and its filtration performance can be restored using appropriate cleaning methods. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an apparatus for preparing high-purity nitrous oxide.

[0005] This utility model discloses a device for preparing high-purity nitrous oxide, comprising a reaction vessel body. Two sets of first support legs are fixedly connected to the bottom of the reaction vessel body, arranged symmetrically. A top plate is detachably connected to the top of the reaction vessel body. Two fixing plates are fixedly connected to the middle of the reaction vessel body near the top plate, arranged symmetrically. Two rollers are fixedly connected to the middle of the reaction vessel body near the fixing plates, arranged symmetrically. Two sliding grooves are formed in the middle of the reaction vessel body near the first support legs, arranged symmetrically. A second filter plate is slidably connected to the middle of the sliding grooves. Multiple ejector pins are detachably connected to the middle of the second filter plate, distributed at equal intervals. A first filter plate is slidably connected to the middle of the sliding grooves near the second filter plate. Two elastic ropes are fixedly connected to the top of the first filter plate, arranged symmetrically and passing through the rollers. A rubber ring is fixedly connected to the end of each elastic rope away from the first filter plate. The rubber ring cooperates with the fixing plate. The second filter plate is located away from the first support legs. A guide plate is fixed to the bottom of a filter plate. A condensation assembly is installed on the outside of the reactor body. A stirring assembly is installed in the middle of the reactor body. An adsorption assembly is installed on the outside of the condensation assembly. A feeding assembly is fixed to the top of the top plate. A sealing assembly is detachably connected to the top of the feeding assembly. This step, through the structural design of installing multiple pins in the middle of the second filter plate to cooperate with the first filter plate, can promptly clean the solid particles in the middle of the first filter plate, ensuring that the filter holes in the middle of the first filter plate are unobstructed. This allows the reaction mixture to pass through the filter plate continuously and efficiently, avoiding abnormal pressure changes and fluctuations in the reaction stream caused by blockage of the first filter plate. Stable filtration efficiency contributes to the stable operation of the entire nitrous oxide preparation device, improves production efficiency, and the good filtration effect can more effectively remove solid particulate impurities in the reaction mixture, resulting in higher purity nitrous oxide gas entering the subsequent processing flow.

[0006] Preferably, the condensation assembly includes a condenser tube, a storage tank, a fixing block, a filter cartridge, a pressure pump, a guide pipe, and a discharge port. A pressure pump is fixedly connected to the middle of the reactor body near the guide plate. The output end of the pressure pump is detachably connected to the filter cartridge. A guide pipe is fixedly connected to the middle of the filter cartridge. A condenser tube is fixedly connected to the middle of the guide pipe. A fixing block is fixedly connected to the middle of the condenser tube. A discharge port is opened on the fixing block near the middle of the condenser tube. A storage tank is fixedly connected to the middle of the discharge port. This step utilizes the condensate to condense the liquid and gas in the middle of the guide pipe. The cooling structure design enables efficient cooling of nitrous oxide within the guide tube. By circulating the coolant within the condenser tube, the cooling temperature of nitrous oxide can be precisely controlled. A suitable cooling temperature allows water vapor in nitrous oxide to condense and separate more easily, or converts nitrous oxide into a liquid form that is easier to store and transport, thus improving the efficiency of the entire preparation process. Furthermore, the filter cartridge effectively removes solid impurities from the mixture, providing a purer material basis for subsequent cooling and adsorption steps, which helps improve the purity of the final nitrous oxide product.

[0007] Preferably, the stirring assembly includes a motor, a rotating shaft, pulverizing blades, rotating rods, and scrapers. The motor is fixedly connected to the top of the top plate and is located at the center of the top plate. The output end of the motor is rotatably connected to the rotating shaft. Pulverizing blades are fixedly connected to the middle of the rotating shaft. Two rotating rods are fixedly connected to the middle of the rotating shaft near the top plate, arranged symmetrically. Scrapers are fixedly connected to the rotating rods near the side wall of the reactor body. This step, through the structural design of using pulverizing blades to shear the raw materials and scrapers to clean the inner wall of the reactor body, can not only reduce the size of the raw material particles and accelerate the reaction rate, but also scrape off the raw materials adhering to the inner wall of the reactor body, allowing these raw materials to participate in the reaction again, improving the utilization rate of raw materials and reducing production costs. Furthermore, timely cleaning of the adhering raw materials on the inner wall of the reactor during the reaction process can prevent these raw materials from accumulating on the wall for a long time, thereby preventing scaling, corrosion, and other problems caused by high temperature, chemical reaction, and other factors.

[0008] Preferably, the adsorption assembly includes an adsorption tower body, an outlet, second support legs, activated carbon sheets, and the ends of the condenser tube and the guide tube away from the reactor body are all fixed to the adsorption tower body, with the guide tube penetrating the adsorption tower body. The top of the adsorption tower body is fixed to an outlet, and the bottom of the adsorption tower body is fixed to two sets of second support legs, which are symmetrically arranged. Multiple activated carbon sheets are detachably connected to the middle of the second support legs and are evenly distributed. This step, through the structural design of installing activated carbon sheets in the middle of the adsorption tower body, can effectively remove impurities, including some organic impurities and trace amounts of moisture that are difficult to remove through cooling and filtration, which helps to significantly improve the purity of nitrous oxide and make it more in line with the requirements of high-purity products.

[0009] Preferably, the feeding assembly includes a feed inlet, a third filter plate, and fixing ropes. The feed inlet is located on the top of the top plate near the motor. Two fixing ropes are slidably connected to the middle of the feed inlet and are arranged symmetrically. The third filter plate is fixed to the end of each fixing rope. This step, through the structural design of the third filter plate, uses the third filter plate for initial filtration, which can ensure that the raw materials entering the reactor body are in a relatively uniform state, which is conducive to the uniform reaction and improves the efficiency of the entire reaction process.

[0010] Preferably, the sealing assembly includes a sealing cap, and the top of the inlet is detachably connected to the sealing cap. This step, through the structural design of installing the sealing cap, can effectively prevent outside air from entering the interior of the reactor body, thereby ensuring the stability of the reaction environment and improving the selectivity of the reaction and the purity of the product.

[0011] Preferably, the scraper is made of PTFE material. During operation, the PTFE scraper has an extremely low surface friction coefficient, resulting in minimal wear on the inner wall of the reactor when scraping off deposits. This step, by designing the scraper with a PTFE material structure, avoids scratching the inner wall of the reactor, thus not affecting the performance of the reactor itself. Furthermore, this low-friction characteristic also makes the scraper easier to operate and requires less effort.

[0012] The beneficial effects of this application are as follows: By installing multiple pins in the middle of the second filter plate to cooperate with the first filter plate, the solid particles in the middle of the first filter plate can be cleaned in time, ensuring that the filter holes in the middle of the first filter plate are unobstructed. This allows the reaction mixture to pass through the filter plate continuously and efficiently, avoiding abnormal pressure changes and fluctuations in the reaction flow caused by blockage of the first filter plate. The stable filtration efficiency contributes to the stable operation of the entire nitrous oxide preparation device, improves production efficiency, and the good filtration effect can more effectively remove solid particulate impurities in the reaction mixture, resulting in higher purity of nitrous oxide gas entering the subsequent processing flow. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first filter plate and the ejector pin in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the pulverizing blade and scraper in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the filter cartridge and the guide tube in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the adsorption tower body and the activated carbon sheet in this utility model.

[0019] In the attached diagram: 1. Reactor body; 11. First support leg; 12. Top plate; 13. Elastic rope; 14. Fixing plate; 15. Rubber ring; 16. Roller; 17. First filter plate; 18. Second filter plate; 19. Ejector pin; 110. Guide plate; 111. Slide groove; 2. Condenser; 21. Liquid storage tank; 22. Fixing block; 23. Filter cylinder; 24. Pressure pump; 25. Guide pipe; 26. Feed port; 3. Motor; 31. Rotating shaft; 32. Crushing blade; 33. Rotating rod; 34. Scraper; 4. Adsorption tower body; 41. Gas outlet; 42. Second support leg; 43. Activated carbon sheet; 5. Feed port; 51. Third filter plate; 52. Fixing rope; 6. Sealing cover. Detailed Implementation

[0020] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0021] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish conditions or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this utility model.

[0023] To further understand the utility model's content, features, and effects, the following embodiments are provided, along with detailed descriptions in conjunction with the accompanying drawings:

[0024] Reference Figures 1 to 3This embodiment of a high-purity nitrous oxide preparation apparatus includes a reactor body 1. Two sets of first support legs 11 are fixedly connected to the bottom of the reactor body 1, arranged symmetrically. A top plate 12 is detachably connected to the top of the reactor body 1. Two fixing plates 14 are fixedly connected to the center of the reactor body 1 near the top plate 12, arranged symmetrically. Two rollers 16 are fixedly connected to the center of the reactor body 1 near the fixing plates 14, arranged symmetrically. Two sliding grooves 111 are formed in the center of the reactor body 1 near the first support legs 11, arranged symmetrically. A second filter plate 18 is slidably connected to the center of the sliding grooves 111. Multiple ejector pins 19 are detachably connected to the center of the second filter plate 18, distributed at equal intervals. A series of ejector pins 19 are slidably connected to the center of the sliding grooves 111 near the center of the second filter plate 18. The first filter plate 17 has two elastic ropes 13 fixed to its top, arranged symmetrically and passing through the roller 16. A rubber ring 15 is fixed to the end of each elastic rope 13 away from the first filter plate 17, and the rubber ring 15 works in conjunction with the fixing plate 14. A guide plate 110 is fixed to the bottom of the second filter plate 18 away from the first filter plate 17. A condensing assembly is installed on the outside of the reactor body 1, a stirring assembly is installed in the middle of the reactor body 1, and an adsorption assembly is installed outside the condensing assembly. A feeding assembly is fixed to the top of the top plate 12, and a sealing assembly is detachably connected to the top of the feeding assembly. During operation, the sealing assembly is opened, and nitrous oxide raw material is poured in through the feeding assembly. The stirring assembly is used to stir the raw material, which then undergoes reaction within the reactor body 1. After the reaction, the mixture produced will be filtered through the first filter plate 17 to intercept solid particulate impurities. During the reaction, solid particulate impurities tend to adhere to the middle of the first filter plate 17, affecting the filtration effect. At this time, the ejector pin 19 in the middle of the second filter plate 18 can play a role. When the first filter plate 17 slides back and forth under the pull of the elastic rope 13, the middle of the first filter plate 17 will generate relative movement with the ejector pin 19, causing the solid particles attached to the middle of the first filter plate 17 to be stirred by the ejector pin 19 and thus fall off the filter plate. The fallen solid particles will fall back to the top of the first filter plate 17 for secondary filtration, so that the relatively pure nitrous oxide gas and some gaseous byproducts can flow through the guide plate 110 to the bottom of the reactor body 1. The reaction mixture is processed by a condensation assembly and then purified by an adsorption assembly before proceeding to subsequent operations. After preparation, the first filter plate 17 is pulled out of the reactor body 1 using elastic ropes 13 for cleaning. This step, through a structural design that uses multiple ejector pins 19 installed in the middle of the second filter plate 18 in conjunction with the first filter plate 17, promptly removes solid particles from the middle of the first filter plate 17, ensuring unobstructed filter holes. This allows the reaction mixture to pass through the filter plate continuously and efficiently, preventing abnormal pressure changes and fluctuations in the reaction stream caused by blockage of the first filter plate 17. Stable filtration efficiency contributes to the stable operation of the entire nitrous oxide preparation unit, improving production efficiency.Furthermore, excellent filtration can more effectively remove solid particulate impurities from the reaction mixture, resulting in higher purity nitrous oxide gas entering subsequent processing steps.

[0025] Reference Figure 1 and Figure 3 The condensation assembly includes a condenser tube 2, a storage tank 21, a fixing block 22, a filter cartridge 23, a pressure pump 24, a guide pipe 25, and a discharge port 26. A pressure pump 24 is fixedly connected to the middle of the reactor body 1 near the guide plate 110. The output end of the pressure pump 24 is detachably connected to the filter cartridge 23. A guide pipe 25 is fixedly connected to the middle of the filter cartridge 23. A condenser tube 2 is fixedly connected to the middle of the guide pipe 25. A fixing block 22 is fixedly connected to the middle of the condenser tube 2. The fixing block 22 is located near the condenser tube 23. A discharge port 26 is provided in the middle of the condenser pipe 2, and a storage tank 21 is fixedly connected to the middle of the discharge port 26. During operation, after the raw material is filtered and reacted, it flows to the bottom of the reactor body 1 and is transported by the pressure pump 24. When the mixture containing nitrous oxide and other impurities flows through the filter cylinder 23, the filter cylinder 23 will filter it again, so that only the liquid and gas components can flow to the middle of the guide pipe 25. A condenser pipe 2 is installed on the outside of the guide pipe 25, and the storage tank... The coolant in 21 flows into the middle of the condenser tube 2 through the feed port 26. Since the condenser tube 2 wraps around the guide tube 25, the coolant absorbs the heat of nitrous oxide in the guide tube 25 when it flows in the condenser tube 2, thus cooling the nitrous oxide and facilitating the subsequent adsorption steps. This step, through the structural design of using the coolant to cool the liquid and gas in the middle of the guide tube 25, can efficiently cool the nitrous oxide in the guide tube 25. By circulating the coolant in the condenser tube 2, the cooling temperature of the nitrous oxide can be precisely controlled. A suitable cooling temperature can make the water vapor in the nitrous oxide easier to condense and separate, or convert the nitrous oxide into a liquid form that is easier to store and transport, thus improving the efficiency of the entire preparation process. In addition, the filter cartridge 23 can effectively remove solid impurities in the mixture, providing a purer material basis for the subsequent cooling and adsorption steps, which helps to improve the purity of the final nitrous oxide product.

[0026] Reference Figure 1 and Figure 2The stirring assembly includes a motor 3, a rotating shaft 31, a grinding blade 32, a rotating rod 33, and a scraper 34. The motor 3 is fixedly connected to the top of the top plate 12 and is located at the center of the top plate 12. The output end of the motor 3 is rotatably connected to the rotating shaft 31. The grinding blade 32 is fixedly connected to the middle of the rotating shaft 31. Two rotating rods 33 are fixedly connected to the middle of the rotating shaft 31 near the top plate 12, arranged symmetrically. The scraper 34 is fixedly connected to the side wall of the rotating rods 33 near the side wall of the reactor body 1. During operation, the motor 3 is started, driving the rotating shaft 31 to rotate. Since the grinding blade 32 is fixed on the rotating shaft 31, it also performs a circular motion as the rotating shaft 31 rotates. When the raw material is inside the reactor body 1, the high-speed circular motion of the grinding blade 32 applies impact and shearing forces to the raw material, breaking larger raw material particles into smaller particles. Simultaneously, the rotating rod 33 is also fixed on the rotating shaft 31, and the scraper 34 is connected to the rotating rod 33. When the rotating shaft 31 rotates, the rotating rod 33 and the scraper 34 also rotate together, which can scrape off the raw materials adhering to the inner wall of the reactor body 1. After the reaction is completed, when no new raw materials are added to the reactor body 1, the motor 3 is started. The same rotational motion allows the scraper 34 to thoroughly clean the inner wall of the reactor body 1. This step, through the structural design of using the crushing blade 32 to shear the raw materials and the scraper 34 to clean the inner wall of the reactor body 1, can not only reduce the size of the raw material particles and accelerate the reaction rate, but also scrape off the raw materials adhering to the inner wall of the reactor body 1, so that these raw materials can re-participate in the reaction, improve the utilization rate of raw materials, and reduce production costs. In addition, timely cleaning of the raw materials adhering to the inner wall of the reactor during the reaction can prevent these raw materials from accumulating on the wall for a long time, thereby preventing scaling, corrosion and other problems caused by high temperature, chemical reaction and other factors.

[0027] Reference Figure 1 and Figure 5The adsorption assembly includes an adsorption tower body 4, an outlet 41, second support legs 42, activated carbon sheets 43, a condenser 2, and a guide pipe 25. The ends of the adsorption tower body 4 away from the reactor body 1 are all fixedly connected to the adsorption tower body 4, and the guide pipe 25 penetrates the adsorption tower body 4. An outlet 41 is fixedly connected to the top of the adsorption tower body 4, and two sets of second support legs 42 are fixedly connected to the bottom of the adsorption tower body 4, arranged symmetrically. Multiple activated carbon sheets 43 are detachably connected to the middle of the second support legs 42, distributed at equal intervals. During operation, cooled nitrous oxide is transported to the adsorption tower body 4 through the guide pipe 25 under the pressure provided by the pressure pump 24. When nitrous oxide enters... After entering the adsorption tower body 4, the nitrous oxide gas comes into contact with multiple activated carbon sheets 43 inside the tower. Organic impurities and some residual moisture in the nitrous oxide are adsorbed onto the pore surface of the activated carbon sheets 43. The relatively pure nitrous oxide gas after adsorption treatment is discharged from the outlet 41 of the adsorption tower body 4 and then connected to the subsequent processing equipment for further processing or storage. This step, through the structural design of installing activated carbon sheets 43 in the middle of the adsorption tower body 4, can effectively remove impurities, including some organic impurities and trace amounts of moisture that are difficult to remove by cooling, filtration, etc., which helps to significantly improve the purity of nitrous oxide and make it more in line with the requirements of high-purity products.

[0028] Reference Figure 2 and Figure 3 The feeding assembly includes an inlet 5, a third filter plate 51, and fixing ropes 52. The inlet 5 is located on the top of the top plate 12 near the motor 3. Two fixing ropes 52 are slidably connected to the middle of the inlet 5, arranged symmetrically. The ends of the fixing ropes 52 are fixed to the third filter plate 51. During operation, when the raw material enters from the inlet 5 at the top of the top plate 12, larger particles of impurities or lumps that do not meet the reaction requirements will be intercepted above the third filter plate 51, while the raw material that meets the requirements can pass through the third filter plate 51 and enter the reactor body 1 for reaction. When feeding is not required, the fixing ropes 52 can be pulled directly to remove the third filter plate 51 from the middle of the inlet 5 for cleaning. This step, through the structural design of the third filter plate 51, uses the third filter plate 51 for initial filtration to ensure that the state of the raw material entering the reactor body 1 is relatively uniform, which is conducive to the uniform reaction and improves the efficiency of the entire reaction process.

[0029] Reference Figure 3The sealing assembly includes a sealing cover 6, which is detachably connected to the top of the feed inlet 5. During operation, when the sealing cover 6 is installed on the top of the feed inlet 5, the sealing cover 6 is tightly fitted to the feed inlet 5 through the detachable connection, preventing external air, impurities, etc. from entering the equipment and preventing leakage of raw materials or reaction gases inside the equipment. This step, through the structural design of installing the sealing cover 6, can effectively prevent external air from entering the reactor body 1, thereby ensuring the stability of the reaction environment and improving the selectivity of the reaction and the purity of the product.

[0030] Reference Figure 3 The scraper 34 is made of PTFE. During operation, due to the extremely low surface friction coefficient of the PTFE scraper 34, the wear on the inner wall of the reactor body 1 is minimal when scraping off the deposits. This step, by designing the scraper 34 with a PTFE material structure, avoids scratching the inner wall of the reactor body 1, thus not affecting the performance of the reactor body 1. Moreover, this low friction characteristic also makes the scraper 34 easier to operate and requires less effort.

[0031] In summary: After opening the sealing assembly, nitrous oxide raw material is poured in through the feeding assembly. The stirring assembly agitates the raw material. After the raw material reacts within the reactor body 1, the resulting mixture is filtered through the first filter plate 17 to intercept solid particulate impurities. During the reaction, solid particulate impurities tend to adhere to the middle of the first filter plate 17, affecting the filtration effect. At this point, the ejector pin 19 in the middle of the second filter plate 18 comes into play. When the first filter plate 17 slides back and forth under the pull of the elastic rope 13, the middle of the first filter plate 17 moves relative to the ejector pin 19, causing the solid particles adhering to the middle of the first filter plate 17 to be agitated by the ejector pin 19 and thus detached from the filter plate. The detached solid particles fall back onto the first filter plate 18. The top of filter plate 17 performs secondary filtration, allowing relatively pure nitrous oxide gas and some gaseous byproducts to flow through guide plate 110 to the bottom of reactor body 1. After processing by condensation components, it undergoes final purification by adsorption components before proceeding with subsequent operations. After preparation, elastic rope 13 pulls the first filter plate 17 out of reactor body 1 for cleaning. After filtration and reaction, the raw materials flow to the bottom of reactor body 1 and are transported by pressure pump 24. When the mixture containing nitrous oxide and other impurities flows through filter cylinder 23, it undergoes secondary filtration, ensuring that only liquid and gas components flow to the middle of guide pipe 25. A condenser pipe 2 is installed outside guide pipe 25 for storage. The coolant in the liquid tank 21 flows into the middle of the condenser tube 2 through the feed port 26. Since the condenser tube 2 wraps around the guide tube 25, the coolant absorbs the heat of nitrous oxide in the guide tube 25 when it flows inside the condenser tube 2, thus cooling the nitrous oxide and facilitating the subsequent adsorption steps. The motor 3 is started, and the motor 3 drives the rotating shaft 31 to rotate. Since the crushing blade 32 is fixed on the rotating shaft 31, the crushing blade 32 also makes a circular motion as the rotating shaft 31 rotates. When the raw material is in the reactor body 1, the high-speed circular motion of the crushing blade 32 applies impact and shearing forces to the raw material, which can break larger raw material particles into smaller particles. At the same time, a rotating rod 33 is also fixed on the rotating shaft 31, and a scraper 34 is connected to the side wall of the rotating rod 33. When the rotating shaft 31 rotates... The rotating rod 33 and scraper 34 also rotate together, which can scrape off the raw materials adhering to the inner wall of the reactor body 1. After the reaction is completed, when no new raw materials are added to the reactor body 1, the motor 3 is started. The same rotational motion allows the scraper 34 to thoroughly clean the inner wall of the reactor body 1. The cooled nitrous oxide is transported to the adsorption tower body 4 through the guide pipe 25 under the pressure provided by the pressure pump 24. When the nitrous oxide enters the adsorption tower body 4, it will come into contact with multiple activated carbon sheets 43 in the tower. The organic impurities in the nitrous oxide and some residual moisture will be adsorbed on the pore surface of the activated carbon sheets 43. The relatively pure nitrous oxide gas after adsorption treatment is discharged from the outlet 41 of the adsorption tower body 4.Then it is connected to subsequent processing equipment for further processing or storage. When the raw material enters from the feed port 5 at the top of the top plate 12, larger particles of impurities or lumps that do not meet the reaction requirements will be intercepted above the third filter plate 51, while the raw material that meets the requirements can pass through the third filter plate 51 and enter the reactor body 1 for reaction. When it is not necessary to feed, the fixing rope 52 can be pulled directly to remove the third filter plate 51 from the middle of the feed port 5 for cleaning. When the sealing cover 6 is installed on the top of the feed port 5, the sealing cover 6 is tightly fitted to the feed port 5 through a detachable connection, preventing external air, impurities, etc. from entering the equipment and preventing the leakage of raw materials or reaction gases inside the equipment. Because the scraper 34 made of PTFE material has an extremely low surface friction coefficient, the wear on the inner wall of the reactor body 1 is minimal when scraping off the deposits.

[0032] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made to the spirit and principles of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An apparatus for preparing high-purity nitrous oxide, characterized in that: The reactor includes a reactor body (1), with two sets of first support legs (11) fixedly connected to the bottom of the reactor body (1) in a symmetrical arrangement. A top plate (12) is detachably connected to the top of the reactor body (1). Two fixing plates (14) are fixedly connected to the middle of the reactor body (1) near the top plate (12) in a symmetrical arrangement. Two rollers (16) are fixedly connected to the middle of the reactor body (1) near the fixing plates (14) in a symmetrical arrangement. Two sliding grooves (111) are opened in the middle of the reactor body (1) near the first support legs (11) in a symmetrical arrangement. A second filter plate (18) is slidably connected to the middle of the sliding grooves (111). Multiple ejector pins (19) are detachably connected to the middle of the second filter plate (18) in an equidistant arrangement. A first filter plate (17) is slidably connected to the middle of the second filter plate (18). Two elastic ropes (13) are fixed to the top of the first filter plate (17), arranged symmetrically and passing through the roller (16). A rubber ring (15) is fixed to the end of the elastic rope (13) away from the first filter plate (17). The rubber ring (15) is used in conjunction with the fixing plate (14). A guide plate (110) is fixed to the bottom of the second filter plate (18) away from the first filter plate (17). A condensing component is installed on the outside of the reactor body (1). A stirring component is installed in the middle of the reactor body (1). An adsorption component is installed on the outside of the condensing component. A feeding component is fixed to the top of the top plate (12). A sealing component is detachably connected to the top of the feeding component.

2. The apparatus for preparing high-purity nitrous oxide according to claim 1, characterized in that, The condensation assembly includes a condenser tube (2), a liquid storage tank (21), a fixing block (22), a filter cylinder (23), a pressure pump (24), a guide pipe (25), and a discharge port (26). The pressure pump (24) is fixedly connected to the middle of the reactor body (1) near the guide plate (110). The output end of the pressure pump (24) is detachably connected to the filter cylinder (23). The guide pipe (25) is fixedly connected to the middle of the filter cylinder (23). The condenser tube (2) is fixedly connected to the middle of the guide pipe (25). The fixing block (22) is fixedly connected to the middle of the condenser tube (2). The discharge port (26) is opened on the middle of the fixing block (22) near the middle of the condenser tube (2). The liquid storage tank (21) is fixedly connected to the middle of the discharge port (26).

3. The apparatus for preparing high-purity nitrous oxide according to claim 2, characterized in that, The stirring assembly includes a motor (3), a rotating shaft (31), a grinding blade (32), a rotating rod (33), and a scraper (34). The top of the top plate (12) is fixedly connected to the motor (3) and is located at the center of the top plate (12). The output end of the motor (3) is rotatably connected to the rotating shaft (31). The grinding blade (32) is fixedly connected to the middle of the rotating shaft (31). Two rotating rods (33) are fixedly connected to the middle of the rotating shaft (31) near the top plate (12) and are arranged symmetrically. The scraper (34) is fixedly connected to the side wall of the reactor body (1) near the rotating rod (33).

4. The apparatus for preparing high-purity nitrous oxide according to claim 3, characterized in that, The adsorption assembly includes an adsorption tower body (4), an outlet (41), a second support leg (42), and activated carbon sheets (43). The ends of the condenser tube (2) and the guide tube (25) away from the reactor body (1) are both fixed to the adsorption tower body (4), and the guide tube (25) penetrates the adsorption tower body (4). The top of the adsorption tower body (4) is fixed to the outlet (41), and the bottom of the adsorption tower body (4) is fixed to two sets of second support legs (42), which are symmetrically arranged. Multiple activated carbon sheets (43) are detachably connected to the middle of the second support legs (42), which are equidistantly distributed.

5. The apparatus for preparing high-purity nitrous oxide according to claim 1, characterized in that, The feeding assembly includes a feeding port (5), a third filter plate (51), and a fixing rope (52). The feeding port (5) is located on the top of the top plate (12) near the motor (3). Two fixing ropes (52) are slidably connected to the middle of the feeding port (5) and are arranged symmetrically. The third filter plate (51) is fixed to the end of the fixing rope (52).

6. The apparatus for preparing high-purity nitrous oxide according to claim 1, characterized in that, The feeding assembly includes a feeding port (5), a third filter plate (51), and a fixing rope (52). The feeding port (5) is located on the top of the top plate (12) near the motor (3). Two fixing ropes (52) are slidably connected to the middle of the feeding port (5) and are arranged symmetrically. The third filter plate (51) is fixed to the end of the fixing rope (52).

7. The apparatus for preparing high-purity nitrous oxide according to claim 3, characterized in that, The scraper (34) is made of PTFE.

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