Oxygen production device
By simplifying the structure of the oxygen generator and using common components such as filter plates, pneumatic plates, and molecular sieve plates to achieve air separation, the problems of high maintenance difficulty and high risk of existing oxygen generators are solved, and convenient, safe, and energy-saving oxygen generation is achieved.
Patent Information
- Application Number
- CN202422749843.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing oxygen concentrators are difficult to use and maintain due to their complex components, resulting in high costs and low adoption rates. Furthermore, the chemical and electrolysis methods of oxygen production are highly dangerous and expensive, making them difficult to promote and use.
The oxygen generation device adopts a simple structure, including an intake component and a generation component. It filters air impurities through a filter plate, compresses air through a pneumatic plate, separates nitrogen and oxygen through a molecular sieve plate, and performs secondary impurity removal through a purification plate. It achieves physical separation oxygen generation by using common components.
It achieves simplicity and safety in oxygen production operation, reduces maintenance and usage costs, promotes the popularization and use of oxygen production equipment, and adopts a physical separation method that is more energy-efficient and environmentally friendly.
Smart Images
Figure CN223490718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of oxygen generators, specifically to an oxygen generating device. Background Technology
[0002] An oxygen concentrator is a machine that produces oxygen. Its principle is based on air separation technology. First, air is compressed at high density, and then the different condensation points of the air components are used to separate the gas and liquid phases at a certain temperature. Then, distillation is performed to separate it into oxygen and nitrogen. Because it is primarily used to produce oxygen, it is commonly called an oxygen concentrator. Since oxygen and nitrogen have a wide range of uses, oxygen concentrators are widely used in the national economy. However, existing oxygen concentrators suffer from high operating and maintenance difficulties due to their complex components, resulting in high operating costs, low adoption rates, poor practicality, and difficulty in widespread use. Furthermore, existing oxygen production equipment using chemical and electrolytic methods is highly dangerous and expensive. Utility Model Content
[0003] To address the problems of existing oxygen concentrators, which are difficult to use and maintain due to their complex components, resulting in high operating costs, low adoption rates, poor practicality, and difficulty in widespread use, as well as the high risks and high costs associated with existing oxygen production equipment using chemical and electrolytic methods, this utility model aims to achieve the goals of compression separation oxygen production, simple operation, simple structure, safety, reliability, and practicality through the following technical solution: An oxygen generating device includes a housing, with an oxygen generating mechanism movably connected inside the housing. The oxygen generating mechanism includes an intake component for air collection and a generating component for separating and purifying nitrogen and oxygen in the air. The intake component and the generating component are movably connected inside the housing.
[0004] Furthermore, the suction assembly includes a flow port, a filter plate, a pressure hood, a one-way air inlet valve, a motor, an eccentric plate, a slider, a connecting rod, a sliding rod, a pneumatic plate, and a one-way air outlet valve. The surface of the outer shell has a flow port. A filter plate is fixedly connected to the inner side of the flow port. A pressure hood is fixedly connected to the inside of the outer shell. A one-way air inlet valve is fixedly connected to the outside of the pressure hood. A motor is fixedly connected to the inside of the outer shell. An eccentric plate is fixedly connected to the outside of the motor. A slider is slidably connected to the outside of the eccentric plate. A connecting rod is movably connected to the outside of the slider. A sliding rod is slidably connected to the inner side of the pressure hood. A pneumatic plate is fixedly connected to the outside of the sliding rod. A one-way air outlet valve is fixedly connected to the outside of the pressure hood.
[0005] Furthermore, the generating components include an isolation shell, an iron swing plate, a spring, a coil, a limiting block, an exhaust port, a protective shell, a molecular sieve plate, a detection shell, a moving plate, a contact strip, a vent, a baffle, a spiral spring, a collecting plate, a purification plate, a nozzle, and an adjusting plate. The isolation shell is fixedly connected inside the outer shell, and the iron swing plate is movably connected inside the isolation shell. A spring is fixedly connected to the outside of the iron swing plate. A coil is fixedly connected inside the isolation shell, and a limiting block is fixedly connected inside the isolation shell. An exhaust port is provided on the surface of the isolation shell. A protective shell is fixedly connected to the interior of the protective shell, a molecular sieve plate is fixedly connected inside the protective shell, a detection shell is fixedly connected inside the protective shell, a moving plate is slidably connected inside the detection shell, a contact strip is fixedly connected inside the detection shell, a vent is provided on the surface of the protective shell, a baffle is slidably connected inside the vent, a spiral spring is fixedly connected to the outside of the baffle, a collecting plate is fixedly connected to the inside of the outer shell, a purification plate is fixedly connected inside the collecting plate, an air nozzle is fixedly connected to the outside of the collecting plate, and an adjusting plate is slidably connected to the inside of the air nozzle.
[0006] Furthermore, an outlet is provided on the surface of the outer casing, and a power button is fixedly connected to the outside of the outer casing.
[0007] Furthermore, activated carbon particles and calcium oxide particles are added inside the filter plate. The flow port is connected to the one-way air inlet valve through a hose. The one-way air outlet valve is connected to the isolation shell through a hose. The two ends of the connecting rod are respectively movably connected to the outside of the slider and the outside of the slide rod. The pneumatic plate is slidably and sealed to the air pressure cover.
[0008] Furthermore, the two ends of the spring are respectively fixedly connected to the outside of the iron pendulum plate and the inside of the isolation shell. The iron pendulum plate corresponds to the position of the coil and matches its specifications. The iron pendulum plate corresponds to the position of the limiting block and matches its specifications. The iron pendulum plate corresponds to the position of the exhaust port and matches its specifications. There are two exhaust ports. The exhaust ports are connected to the protective shell through hoses. Zeolite is added inside the molecular sieve plate. Nitrogen is added inside the sealed space formed between the detection shell, the moving plate, and the contact strip. The moving plate corresponds to the position of the contact strip and matches its specifications. The protective shell is connected to the collecting plate through hoses. The two ends of the spring are respectively fixedly connected to the outside of the baffle and the inside of the vent. The baffle corresponds to the position of the vent and matches its specifications. Activated carbon is added inside the purification plate. The air nozzle corresponds to the position of the adjusting plate and matches its specifications.
[0009] Furthermore, the motor and the contact bar are electrically connected to the power button, the coil and the left spiral spring are electrically connected to the left contact bar, and the right spiral spring is electrically connected to the right contact bar. When the contact bar is triggered, its internal circuit changes from an open circuit to a closed circuit, thereby energizing the coil and the spiral spring.
[0010] This utility model provides an oxygen generating device. It has the following beneficial effects:
[0011] This oxygen generator uses a filter plate to filter air impurities, and a pneumatic plate slides to compress air inside the pressure hood. The compressed air then passes through a molecular sieve plate inside the protective shell to separate nitrogen and oxygen from the air, thus achieving efficient compression and separation of oxygen. At the same time, this device uses common components, which simplifies the manufacturing structure of the oxygen generator, reduces the difficulty of oxygen generation operation and maintenance costs, and promotes the popularization and use of oxygen generators.
[0012] This oxygen generator uses a purification plate to further remove impurities from the separated oxygen, making the oxygen produced by the protective shell cleaner and more hygienic. The adjustable plate can change the diameter of the nozzle, making the oxygen generator convenient to use. At the same time, this device uses physical separation and compression, making the oxygen generation more energy-efficient and environmentally friendly. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a partial cross-sectional view of the internal structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the connection structure of the suction component of this utility model;
[0015] Figure 3 This is a schematic diagram of the component connection structure of this utility model;
[0016] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point A in the middle;
[0017] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point B;
[0018] Figure 6 This utility model Figure 3 Schematic diagram of the structure at point C;
[0019] Figure 7 This utility model Figure 3 Schematic diagram of the structure at point D;
[0020] Figure 8 This utility model Figure 3 Schematic diagram of the structure at point E in the middle.
[0021] In the diagram: 1. Outer shell; 2. Oxygen generating mechanism; 21. Suction assembly; 211. Flow port; 212. Filter plate; 213. Pressure hood; 214. One-way inlet valve; 215. Motor; 216. Eccentric plate; 217. Slider; 218. Connecting rod; 219. Slide rod; 2110. Pneumatic plate; 2111. One-way outlet valve; 22. Generating assembly; 221. Isolation shell; 222. Iron swing plate; 223. 224. Spring; 225. Coil; 226. Limiting block; 227. Exhaust port; 228. Protective shell; 229. Molecular sieve plate; 220. Detection shell; 2210. Moving plate; 2211. Contact strip; 2212. Vent; 2213. Baffle; 2214. Spiral spring; 2215. Collecting plate; 2216. Purification plate; 2217. Air nozzle; 2218. Adjusting plate; 3. Outlet; 4. Power button. Detailed Implementation
[0022] 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.
[0023] An example of this oxygen generating device is as follows: Example
[0024] Please see Figure 1 - Figure 8 An oxygen generating device includes a housing 1, and an oxygen generating mechanism 2 is movably connected inside the housing 1. The oxygen generating mechanism 2 includes an intake component 21 for air collection and a generating component 22 for separating and purifying nitrogen and oxygen in the air. The intake component 21 is movably connected inside the housing 1, and the generating component 22 is movably connected inside the housing 1.
[0025] The suction assembly 21 includes a flow port 211, a filter plate 212, a pressure hood 213, a one-way air inlet valve 214, a motor 215, an eccentric plate 216, a slider 217, a connecting rod 218, a sliding rod 219, a pneumatic plate 2110, and a one-way air outlet valve 2111. The surface of the outer casing 1 has a flow port 211. The filter plate 212 is fixedly connected to the inner side of the flow port 211. The pressure hood 213 is fixedly connected to the inside of the outer casing 1. The one-way air inlet valve 214 is fixedly connected to the outside of the pressure hood 213. The motor 215 is fixedly connected to the inside of the outer casing 1. The eccentric plate 216 is fixedly connected to the outside of the motor 215. The slider 217 is slidably connected to the outside of the eccentric plate 216. The device is externally connected by a connecting rod 218, and a sliding rod 219 is slidably connected to the inner side of the pressure hood 213. A pneumatic plate 2110 is fixedly connected to the outside of the sliding rod 219, and a one-way exhaust valve 2111 is fixedly connected to the outside of the pressure hood 213. Air impurities are filtered through a filter plate 212, and the sliding of the pneumatic plate 2110 compresses the air inside the pressure hood 213. The compressed air passes through a molecular sieve plate 228 inside the protective shell 227 to separate nitrogen and oxygen in the air, thereby achieving efficient compression and separation of oxygen. At the same time, this device uses common components, which simplifies the manufacturing structure of the oxygen generator, reduces the difficulty of oxygen generation operation and maintenance costs, and promotes the popularization and use of oxygen generators.
[0026] The generating component 22 includes an isolation shell 221, an iron swing plate 222, a spring 223, a coil 224, a limiting block 225, an exhaust port 226, a protective shell 227, a molecular sieve plate 228, a detection shell 229, a moving plate 2210, a contact strip 2211, a vent 2212, a baffle 2213, a spiral spring 2214, a collecting plate 2215, a purification plate 2216, an air nozzle 2217, and an adjusting plate 2218. An isolation shell 2 is fixedly connected inside the outer shell 1. 21. An iron swing plate 222 is movably connected inside the isolation shell 221. A spring 223 is fixedly connected to the outside of the iron swing plate 222. A coil 224 is fixedly connected inside the isolation shell 221. A limit block 225 is fixedly connected inside the isolation shell 221. An exhaust port 226 is opened on the surface of the isolation shell 221. A protective shell 227 is fixedly connected inside the outer shell 1. A molecular sieve plate 228 is fixedly connected inside the protective shell 227. The protective shell 227 is fixedly connected inside. A detection shell 229 is fixedly connected, and a moving plate 2210 is slidably connected inside the detection shell 229. A contact strip 2211 is fixedly connected inside the detection shell 229. A vent 2212 is opened on the surface of the protective shell 227. A baffle 2213 is slidably connected inside the vent 2212. A spiral spring 2214 is fixedly connected to the outside of the baffle 2213. A collecting plate 2215 is fixedly connected to the inside of the outer shell 1. A purification plate 2216 is fixedly connected inside the collecting plate 2215. A gas nozzle 2217 is fixedly connected to the outside of the collecting plate 2215. An adjusting plate 2218 is slidably connected to the inside of the gas nozzle 2217. The oxygen separated by the purification plate 2216 undergoes secondary impurity removal, making the oxygen produced by the protective shell 227 cleaner and more hygienic. The adjusting plate 2218 slides to change the diameter of the gas nozzle 2217, thereby making the oxygen production convenient and easy to use. At the same time, this device adopts physical separation and compression, making oxygen production more energy-saving and environmentally friendly.
[0027] An outlet 3 is provided on the surface of the outer casing 1, and an energizing button 4 is fixedly connected to the outside of the outer casing 1.
[0028] The filter plate 212 contains activated carbon particles and calcium oxide particles. The flow port 211 is connected to the one-way air inlet valve 214 via a hose. The one-way air outlet valve 2111 is connected to the isolation shell 221 via a hose. The two ends of the connecting rod 218 are movably connected to the outside of the slider 217 and the outside of the slide rod 219, respectively. The pneumatic plate 2110 is slidably and sealed to the air pressure cover 213.
[0029] The two ends of the spring 223 are fixedly connected to the outside of the iron pendulum plate 222 and the inside of the isolation shell 221, respectively. The iron pendulum plate 222 corresponds to the coil 224 in position and matches its specifications. The iron pendulum plate 222 corresponds to the limit block 225 in position and matches its specifications. The iron pendulum plate 222 corresponds to the exhaust port 226 in position and matches its specifications. There are two exhaust ports 226. The exhaust ports 226 are connected to the protective shell 227 through a flexible hose. The molecular sieve plate 228 is filled with zeolite. The detection shell 229 and the moving plate 221 are also included. 0. Nitrogen gas is added to the sealed space formed between the contact strips 2211. The moving plate 2210 is positioned and matched with the contact strips 2211. The protective shell 227 is connected to the collecting plate 2215 through a hose. The two ends of the spring 223 are fixedly connected to the outside of the baffle 2213 and the inside of the vent 2212, respectively. The baffle 2213 is positioned and matched with the vent 2212. Activated carbon is added inside the purification plate 2216. The air nozzle 2217 is positioned and matched with the adjusting plate 2218.
[0030] Motor 215 and contact bar 2211 are electrically connected to power button 4. Coil 224 and left spiral spring 2214 are electrically connected to left contact bar 2211, and right spiral spring 2214 is electrically connected to right contact bar 2211. When contact bar 2211 is triggered, its internal circuit changes from open circuit to closed circuit, thereby energizing coil 224 and spiral spring 2214.
[0031] In use, the user presses the power button 4, which powers on the motor 215. The motor 215 drives the eccentric plate 216 to rotate, which in turn causes the slider 217 to slide on its surface. The slider 217 then drives the connecting rod 218 to rotate, which in turn causes the sliding rod 219 to slide back and forth outside the pressure shroud 213. This back-and-forth sliding of the sliding rod 219 causes the pneumatic plate 2110 to slide inside the pressure shroud 213. When the pneumatic plate 2110 slides along the direction of the motor 215, the air pressure inside the pressure shroud 213 decreases. Outside air enters the flow port 211 under pressure. Inside the filter plate 212, activated carbon adsorbs air impurities, and calcium oxide absorbs moisture from the air. The air is then transported through a hose to the one-way inlet valve 214 and enters the pressure shroud 213. When the pneumatic plate 2110... Sliding along the one-way inlet valve 214 compresses the air entering the pressure hood 213. The compressed air enters the one-way outlet valve 2111 and is delivered to the interior of the isolation shell 221 through a hose. The air entering the isolation shell 221 enters the exhaust port 226 and is delivered to the interior of the protective shell 227 through a hose. As the concentration of compressed air inside the protective shell 227 increases, the oxygen in the air is filtered by the zeolite inside the molecular sieve plate 228 and is delivered to the interior of the collecting plate 2215 through a hose. The oxygen entering the collecting plate 2215 is adsorbed by the activated carbon inside the purification plate 2216 and then passes through the nozzle 2217 to complete the oxygen filtration. At the same time, the user can manually push the adjusting plate 2218 to change the diameter of the nozzle 2217 and adjust the oxygen compression level.
[0032] Meanwhile, the compressed air, filtered by the molecular sieve plate 228, contains a large amount of nitrogen. This compressed exhaust gas accumulates inside the protective shell 227, increasing the internal pressure. This increased pressure causes the moving plate 2210 to slide inside the detection shell 229. The sliding of the moving plate 2210 compresses the air inside the detection shell 229. The moving plate 2210 slides until it contacts the left contact strip 2211, energizing the left spiral spring 2214 and the coil 224. When energized, the coil 2214 generates an electromagnetic field. The left spiral spring 2214 contracts under the magnetic attraction of this field. This contraction causes the baffle 2213 to slide inside the vent 2212. The sliding of the baffle 2213 opens the vent 2212, allowing compressed exhaust gas from inside the protective shell 227 to enter the vent 2212 and be discharged into the interior of the outer shell 1. The compressed exhaust gas entering the outer shell 1 is then discharged to the outside through the outlet 3. Simultaneously, the coil 224 is energized, generating an electromagnetic field that causes the iron pendulum 222 to... Under the magnetic attraction of the magnetic field, the iron pendulum 222 rotates counterclockwise, causing the spring 223 to contract. The iron pendulum 222 rotates counterclockwise until it contacts the limiting block 225. The counterclockwise rotation of the iron pendulum 222 closes the left exhaust port 226, while the right exhaust port 226 of the isolation shell 221 opens. Similarly, the compressed air entering the isolation shell 221 is delivered to the inside of the right protective shell 227 through a hose. Similarly, when the compressed exhaust gas inside the right protective shell 227 increases, the right... When the side contact bar 2211 is triggered, the right spiral spring 2214 is energized to generate an electromagnetic field. The body of the right spiral spring 2214 is attracted by the magnetic force in the electromagnetic field and contracts. The contraction of the right spiral spring 2214 causes the baffle 2213 to slide inside the vent 2212. The sliding of the baffle 2213 causes the vent 2212 to open, allowing the compressed exhaust gas inside the protective shell 227 to enter the vent 2212 and be discharged into the interior of the outer shell 1. The compressed exhaust gas that enters the interior of the outer shell 1 is discharged to the outside through the outlet 3.
[0033] After the compressed exhaust gas inside the left protective shell 227 is discharged, the moving plate 2210 slides under the action of the nitrogen restoring force inside the detection shell 229 until it separates from the left contact bar 2211. Similarly, the left spiral spring 2214 and coil 224 stop being energized. Similarly, the left spiral spring 2214 drives the baffle 2213 to slide under the action of the restoring force, causing the vent 2212 to close. At the same time, the iron swing plate 222 rotates under the action of the restoring force of the spring 223, opening the left exhaust port 226 again and closing the right exhaust port 226.
[0034] After the compressed nitrogen inside the right protective shell 227 is purged, the right moving plate 2210 slides under the action of the nitrogen restoring force until it separates from the right contact bar 2211. Similarly, the right spiral spring 2214 stops being energized, and the baffle 2213 closes the vent 2212 of the right protective shell 227 again.
[0035] 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. An oxygen generating device, comprising a housing (1), characterized in that: An oxygen generating mechanism (2) is connected inside the outer shell (1). The oxygen generating mechanism (2) includes an intake component (21) for air collection and a generating component (22) for separating and purifying nitrogen and oxygen in the air. The intake component (21) is connected inside the outer shell (1), and the generating component (22) is connected inside the outer shell (1). The intake component (21) includes a flow port (211), a filter plate (212), a pressure hood (213), a one-way air intake valve (214), a motor (215), an eccentric plate (216), a slider (217), a connecting rod (218), a slide rod (219), a pneumatic plate (2110), and a one-way air outlet valve (2111). A flow port (211) is provided on the surface of the outer shell (1). A filter plate (212) is fixedly connected to the inside of the outer shell (1). A pressure hood (213) is fixedly connected to the inside of the outer shell (1). A one-way air inlet valve (214) is fixedly connected to the outside of the pressure hood (213). A motor (215) is fixedly connected to the inside of the outer shell (1). An eccentric plate (216) is fixedly connected to the outside of the motor (215). A slider (217) is slidably connected to the outside of the eccentric plate (216). A connecting rod (218) is movably connected to the outside of the slider (217). A slide rod (219) is slidably connected to the inside of the pressure hood (213). A pneumatic plate (2110) is fixedly connected to the outside of the slide rod (219). A one-way air outlet valve (2111) is fixedly connected to the outside of the pressure hood (213).The generating component (22) includes an isolation shell (221), an iron swing plate (222), a spring (223), a coil (224), a limiting block (225), an exhaust port (226), a protective shell (227), a molecular sieve plate (228), a detection shell (229), a moving plate (2210), a contact strip (2211), a vent (2212), a baffle (2213), a spiral spring (2214), a collecting plate (2215), a purification plate (2216), an air nozzle (2217), and an adjusting plate (2218). The isolation shell (221) is fixedly connected inside the outer shell (1). An iron pendulum plate (222) is internally connected to the movable part of the outer shell (1). A spring (223) is fixedly connected to the outside of the iron pendulum plate (222). A coil (224) is fixedly connected inside the isolation shell (221). A limit block (225) is fixedly connected inside the isolation shell (221). An exhaust port (226) is opened on the surface of the isolation shell (221). A protective shell (227) is fixedly connected inside the outer shell (1). A molecular sieve plate (228) is fixedly connected inside the protective shell (227). A detection shell (229) is fixedly connected inside the protective shell (227). The detection shell (229) has an internal... A sliding plate (2210) is slidably connected to the detection shell (229). A contact strip (2211) is fixedly connected inside the detection shell (229). A vent (2212) is provided on the surface of the protective shell (227). A baffle (2213) is slidably connected inside the vent (2212). A spiral spring (2214) is fixedly connected to the outside of the baffle (2213). A collecting plate (2215) is fixedly connected to the inside of the outer shell (1). A purification plate (2216) is fixedly connected inside the collecting plate (2215). An air nozzle (2217) is fixedly connected to the outside of the collecting plate (2215). 7) The inner side of the shell (1) is slidably connected to an adjusting plate (2218); the surface of the shell (1) is provided with an outlet (3), and the outside of the shell (1) is fixedly connected to an energizing button (4); the filter plate (212) is filled with activated carbon particles and calcium oxide particles; the flow port (211) is connected to the one-way air inlet valve (214) through a hose; the one-way air outlet valve (2111) is connected to the isolation shell (221) through a hose; the two ends of the connecting rod (218) are respectively movably connected to the outside of the slider (217) and the outside of the slide rod (219); the pneumatic plate (2110) is slidably and sealed to the air pressure cover (213).
2. The oxygen generating device according to claim 1, characterized in that: The two ends of the spring (223) are fixedly connected to the outside of the iron pendulum plate (222) and the inside of the isolation shell (221), respectively. The iron pendulum plate (222) corresponds to the position of the coil (224) and matches its specifications. The iron pendulum plate (222) corresponds to the position of the limiting block (225) and matches its specifications. The iron pendulum plate (222) corresponds to the position of the exhaust port (226) and matches its specifications. There are two exhaust ports (226). The exhaust ports (226) are connected to the protective shell (227) through a flexible hose. The molecular sieve plate (228) is filled with zeolite. The detection shell (229) and the moving plate ( Nitrogen gas is added to the sealed space formed between the contact strip (2210) and the contact strip (2211). The moving plate (2210) and the contact strip (2211) are positioned and matched in size. The protective shell (227) and the collecting plate (2215) are connected by a hose. The two ends of the spring (223) are fixedly connected to the outside of the baffle (2213) and the inside of the vent (2212) respectively. The baffle (2213) and the vent (2212) are positioned and matched in size. Activated carbon is added inside the purification plate (2216). The air nozzle (2217) and the adjusting plate (2218) are positioned and matched in size.