Air separation device and method

Abstract

The invention discloses an air separation device and method, relates to the technical field of air separation equipment, and aims to solve the problem that an air separation device in the prior art cannot finely separate air. The device comprises an air separation mechanism used for separating air of different qualities, a scattering and screening mechanism used for scattering and screening air of different qualities and a discharging mechanism used for discharging high-quality air, and efficient separation of air is achieved by combining an air cooling cylinder and the scattering and screening mechanism; the application of the cooling medium effectively reduces the temperature of the gas, so that the gases with different masses are naturally layered due to density difference, and the separation efficiency is improved; and meanwhile, uniform distribution of the airflow is promoted through rotation and up-down disturbance of the scattering assembly, the separation effect is further refined by changing the angle of disturbed airflow, and the accuracy and high efficiency of the separation process are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of air separation equipment, and in particular to an air separation device and method. Background Art

[0002] Air separation technology, referred to as air separation, is a process that uses the differences in the physical properties of the components in the air to separate oxygen, nitrogen and rare gases (such as argon, helium, etc.) from the air through physical or chemical means. Although the current technology has made significant progress, there are still some technical problems that need to be solved.

[0003] The existing patent application with publication number CN102649027A discloses an air separation device, including an adsorption tower filled with carbon molecular sieve and a nitrogen tank, the upper end of which is connected to the nitrogen tank through an eighth air inlet valve, and there are two adsorption towers, and a second air inlet valve and a third air inlet valve are connected between the bottoms of the two adsorption towers, and an air inlet pipe is connected between the second air inlet valve and the third air inlet valve through a first air inlet valve. In order to solve the problem of low air separation efficiency in the prior art, the application uses two adsorption towers alternately to ensure that the air separation device is always in working condition, thereby improving working efficiency.

[0004] However, the application cannot perform fine separation of air, and the air separation accuracy is low. Therefore, an air separation device and method are proposed. Summary of the invention

[0005] The object of the present invention is to provide an air separation device and method to solve the problem that the air cannot be finely separated in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: an air separation device, comprising an air separation mechanism, which comprises an air separation cylinder, an air cooling cylinder and an exhaust assembly for extracting light gas from the air separation cylinder, the air cooling cylinder is installed on one side of the air separation cylinder and is interconnected with the air separation cylinder, and the exhaust assembly is installed on the air separation cylinder;

[0007] A scattering and screening mechanism, comprising a limiting ring, a first sieve plate, a second sieve plate and a scattering assembly, wherein the second sieve plate is fixedly mounted on the inner wall of the air separation cylinder, the first sieve plate is movably mounted on the inner wall of the air separation cylinder, the scattering assembly is located between the first sieve plate and the second sieve plate and is used to scatter the air between the first sieve plate and the second sieve plate, the scattering assembly is slidably connected to the inner wall of the air separation cylinder, and the exhaust assembly is connected to the scattering assembly through a limiting ring transmission;

[0008] The discharge mechanism includes a lower barrel, an electric push rod and a valve stop assembly. The lower barrel is installed on the inner wall of the bottom end of the air separation barrel and is interconnected with the air separation barrel. The valve stop assembly is installed in the lower barrel and is used to regularly discharge the heavy gas in the air separation barrel. The electric push rod is installed on the second screen plate and is connected to the valve stop assembly in a transmission manner.

[0009] Furthermore, an air outlet is provided at the top of the air separation cylinder, and the exhaust assembly includes a mounting frame located in the air outlet and installed on the inner wall of the air separation cylinder, an exhaust fan is rotatably provided in the mounting frame, and a motor for driving and connecting the exhaust fan is provided on the mounting frame.

[0010] Furthermore, the breaking up component includes a driving member and a breaking up member, wherein the driving member is used to drive the breaking up member to simultaneously disturb the airflow up and down while rotating the disturbed airflow, and the driving member is also used to change the angle at which the breaking up member disturbs the airflow.

[0011] Furthermore, the driving member includes a connecting shaft that is transmitted and arranged on the motor, a first bevel gear is sleeved on the connecting shaft, the connecting shaft is slidably sleeved on the first sieve plate, a mounting sleeve is installed on the first sieve plate, a fixed shaft is also sleeved on the connecting shaft, the outer wall of the fixed shaft is fixedly arranged on the second sieve plate, the outer peripheral surface of the second sieve plate is connected to the inner wall of the air separation cylinder, a second bevel gear is rotatably arranged on one side of the outer wall of the connecting shaft, a limiting column is provided on the second bevel gear, and an annular bevel groove that cooperates with the limiting column for sliding is provided on the inner wall of the mounting sleeve.

[0012] Furthermore, the disintegrating part includes a stirring plate. Both ends of the stirring plate are provided with universal shafts. One of the universal shafts is connected to the outer wall of the mounting sleeve, and a limiting groove is provided in the air separation cylinder, and the other universal shaft is slidably connected to the air separation cylinder through the limiting groove.

[0013] Furthermore, the limiting ring is arranged on the connecting shaft, and the limiting ring is used to limit the height of the first screen plate sliding upward in the air separation cylinder.

[0014] Furthermore, the valve stop assembly includes an electric push rod arranged on the outer wall of the fixed shaft, a connecting plate is provided at one end of the electric push rod, sliding grooves are symmetrically provided on the connecting plate, a hinged rod is slidably provided in the sliding groove, a valve plate is provided at the bottom end of the air separation cylinder which rotates through a rotating shaft, one end of the hinged rod is hinged to the valve plate, and a spring is provided on the valve plate to assist the valve plate in resetting through the rotating shaft.

[0015] A spraying mechanism for spraying cooling medium is arranged in the air cooling cylinder, and a liquid level sensor and a controller are also arranged on the electric push rod.

[0016] An air separation method is implemented based on the above-mentioned air separation device, and the method comprises:

[0017] Step S1: Determine the required equipment, materials and proportions according to the preset plan;

[0018] Step S2: injecting gas into the air separation cylinder through the air cooling cylinder, and cooling the gas through the cooling medium. The gas after cooling rises or falls due to different qualities, and the gases of different qualities are collected. If the collected gas does not meet the preset plan standard, it is re-injected into the air separation cylinder through the air cooling cylinder until the collected gas meets the preset plan standard;

[0019] Furthermore, step S2 specifically includes:

[0020] Step S2.1: Start the motor, air enters the air cooling cylinder, and is cooled by the cooling medium sprayed by the spraying mechanism. At this time, the light gas gathers in the top area of ​​the air separation cylinder;

[0021] Step S2.2: The exhaust assembly starts to work, and generates suction through the rotation of the exhaust fan in the mounting frame, and extracts the light gas in the top area through the air outlet to achieve preliminary air separation;

[0022] Step S2.3: The exhaust fan rotates and cooperates with the connecting shaft on the motor to drive the scattered parts to rotate and disturb up and down, while changing the angle of the disturbed airflow;

[0023] Step S2.4: Heavy gas gathers in the bottom area of ​​the air separation cylinder; when the preset condition of the liquid level sensor is reached, the electric push rod starts the valve stop assembly through the controller on the second screen plate to discharge the liquefied heavy gas, and detects the discharged liquefied gas. If it does not meet the preset plan, it will be put back into separation.

[0024] Furthermore, step S2.4 specifically includes: step S2.41: under the guidance of the connecting plate, the hinged rod slides along the slide groove, pushing the valve plate to rotate around the rotating axis, thereby opening the outlet of the lower barrel; the heavy gas in the bottom area of ​​the air separation barrel is discharged through the lower barrel under the action of gravity to complete the collection; at the same time, the spring acts as a reset auxiliary device to ensure that the valve plate can automatically reset after the discharge is completed, preparing for the next discharge.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. By combining the air cooling cylinder with the breaking and screening mechanism, efficient separation of air is achieved. The application of cooling medium effectively reduces the gas temperature, allowing gases of different qualities to be naturally stratified due to density differences, thereby improving separation efficiency. At the same time, the rotation and up and down disturbance of the breaking component not only promotes the uniform distribution of the airflow, but also further refines the separation effect by changing the angle of the disturbed airflow, ensuring the accuracy and efficiency of the separation process.

[0027] 2. The accumulation of heavy gas in the bottom area of ​​the air separation cylinder is monitored in real time through the liquid level sensor. Once the preset conditions are reached, the electric push rod is automatically triggered to start the valve stop assembly for discharge without manual intervention, which greatly improves the convenience and safety of operation. In addition, the controller accurately controls the discharge process, ensuring the accuracy and timeliness of the discharge, further improving the overall separation efficiency.

[0028] 3. By adjusting the type of cooling medium, spraying volume, and power of the exhaust assembly, it can meet the needs of gas separation of different types and concentrations. At the same time, the design of the scattering assembly allows the disturbance mode and angle to be adjusted according to actual needs to optimize the separation effect. In addition, the design of the discharge mechanism also fully considers the needs of different application scenarios. By adjusting the configuration of the electric push rod and the valve stop assembly, it can flexibly respond to separation tasks of different scales and conditions, improving the versatility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is an axonometric diagram of an air separation device of the present invention;

[0030] Figure 2 A top view of an air separation device according to the present invention;

[0031] Figure 3 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 4 This is a schematic cross-sectional structural diagram of an air separation device of the present invention;

[0033] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0034] Figure 6 The present invention is a schematic flow chart of an air separation method.

[0035] : Figure numerals: 100, air separation mechanism; 101, air separation cylinder; 102, air cooling cylinder; 103, mounting frame; 1031, exhaust fan; 1032, motor; 1033, connecting shaft; 200, breaking and screening mechanism; 201, limiting ring; 202, first sieve plate; 203, mounting sleeve; 2031, first bevel gear; 2032, second bevel gear; 2033, limiting column; 2034, universal shaft; 2035, stirring plate; 204, second sieve plate; 205, fixed shaft; 300, discharge mechanism; 301, electric push rod; 302, connecting plate; 303, hinged rod; 304, spring; 305, valve plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Example 1

[0038] See also Figure 1-Figure 6 This embodiment provides an air separation device, including an air separation mechanism 100, which includes an air separation cylinder 101, an air cooling cylinder 102 and an exhaust assembly for extracting light gas from the air separation cylinder 101, the air cooling cylinder 102 is installed on one side of the air separation cylinder 101 and is in communication with the air separation cylinder 101, and the exhaust assembly is installed on the air separation cylinder 101;

[0039] The scattering and screening mechanism 200 comprises a limiting ring 201, a first sieve plate 202, a second sieve plate 204 and a scattering assembly, wherein the second sieve plate 204 is fixedly mounted on the inner wall of the air separation cylinder 101, the first sieve plate 202 is movably mounted on the inner wall of the air separation cylinder 101, the scattering assembly is located between the first sieve plate 202 and the second sieve plate 204 and is used to scatter the air between the first sieve plate 202 and the second sieve plate 204, the scattering assembly is slidably connected to the inner wall of the air separation cylinder 101, and the exhaust assembly is transmission-connected to the scattering assembly via the limiting ring 201;

[0040] The discharge mechanism 300 includes a lower barrel, an electric push rod 301 and a valve stop assembly. The lower barrel is installed on the inner wall of the bottom end of the air separation barrel 101 and is interconnected with the air separation barrel 101. The valve stop assembly is installed in the lower barrel and is used to regularly discharge the heavy gas in the air separation barrel 101. The electric push rod 301 is installed on the second sieve plate 204 and is connected to the valve stop assembly through transmission.

[0041] An air outlet is provided at the top of the air separation cylinder 101, and the exhaust assembly includes a mounting frame 103 located in the air outlet and installed on the inner wall of the air separation cylinder 101, an exhaust fan 1031 is rotatably provided in the mounting frame 103, and a motor 1032 for driving and connecting the exhaust fan 1031 is provided on the mounting frame 103.

[0042] The breaking up assembly comprises a driving member and a breaking up member, wherein the driving member is used to drive the breaking up member to perform a synchronous up and down disturbance while rotating and disturbing the airflow, and the driving member is also used to change the angle at which the breaking up member disturbs the airflow.

[0043] The driving member includes a connecting shaft 1033 which is transmission-set on the motor 1032, a first bevel gear 2031 is sleeved on the connecting shaft 1033, the connecting shaft 1033 is slidably sleeved on the first sieve plate 202, a mounting sleeve 203 is installed on the first sieve plate 202, a fixed shaft 205 is also sleeved on the connecting shaft 1033, the outer wall of the fixed shaft 205 is fixedly set on the second sieve plate 204, the outer peripheral surface of the second sieve plate 204 is connected to the inner wall of the air separation cylinder 101, a second bevel gear 2032 is rotatably provided on one side of the outer wall of the connecting shaft 1033, a limiting column 2033 is provided on the second bevel gear 2032, and an annular bevel groove for sliding with the limiting column 2033 is provided on the inner wall of the mounting sleeve 203.

[0044] The disintegrating part includes a stirring plate 2035. Both ends of the stirring plate 2035 are provided with universal shafts 2034. One universal shaft 2034 is connected to the outer wall of the mounting sleeve 203, and a limiting groove is provided in the air separation cylinder 101, and the other universal shaft 2034 is slidably connected to the air separation cylinder 101 through the limiting groove.

[0045] The limiting ring 201 is disposed on the connecting shaft 1033 , and is used to limit the height of the first sieve plate 202 sliding upward in the air separation cylinder 101 .

[0046] The valve stop assembly includes an electric push rod 301 arranged on the outer wall of the fixed shaft 205, a connecting plate 302 is provided at one end of the electric push rod 301, and a slide groove is symmetrically provided on the connecting plate 302, and a hinge rod 303 is slidably provided in the slide groove. A valve plate 305 is provided at the bottom end of the air separation cylinder 101 through rotation of a rotating shaft, and one end of the hinge rod 303 is hinged to the valve plate 305, and a spring 304 is provided on the valve plate 305 for assisting the valve plate 305 to reset through the rotating shaft.

[0047] The motor 1032 transmits the rotational power through the connecting shaft 1033. The connecting shaft 1033 is provided with a first bevel gear 2031 and a second bevel gear 2032, and the change of the power transmission direction is achieved through the meshing of the two.

[0048] The first screen plate 202 is slidably matched with the connecting shaft 1033 via the mounting sleeve 203 , allowing it to move freely in the axial direction to a certain extent, while being limited by the limiting ring 201 to its maximum upward sliding height.

[0049] The limiting column 2033 on the second bevel gear 2032 cooperates with the annular bevel groove in the installation sleeve 203. When the connecting shaft 1033 rotates, the limiting column 2033 slides in the annular bevel groove, driving the installation sleeve 203 and the first screen plate 202 to reciprocate up and down.

[0050] The stirring plate 2035 is used as a breaking piece, and is connected to the installation sleeve 203 and the limit groove of the air separation cylinder 101 through the universal shafts 2034 at both ends, so as to realize its free swing in the horizontal and vertical directions. When the connecting shaft 1033 rotates, the stirring plate 2035 rotates accordingly and disturbs the airflow, and at the same time, due to its up and down movement, the breaking effect is further enhanced.

[0051] A screening area is formed between the first screen plate 202 and the second screen plate 204, and gases of different particle sizes or densities are preliminarily separated by screening in this area.

[0052] The electric push rod 301 is mounted on the second sieve plate 204 and connected to the valve plate 305 through the connecting plate 302 and the hinge rod 303. When the electric push rod 301 is extended, it pushes the connecting plate 302 to move, and then the valve plate 305 rotates around the rotating axis through the hinge rod 303, opening the outlet of the lower barrel and allowing the heavy gas to be discharged.

[0053] The spring 304 serves as a reset device to ensure that the valve plate 305 can automatically reset and close the outlet of the discharge barrel after the electric push rod 301 contracts.

[0054] The gas first passes through the air cooling cylinder 102 for cooling, and after the temperature is reduced, enters the air separation cylinder 101. Due to the difference in density of different gases, the light gas will naturally rise to the top area of ​​the air separation cylinder 101.

[0055] The motor 1032 is started, driving the connecting shaft 1033 to rotate, thereby driving the stirring plate 2035 to rotate between the first sieve plate 202 and the second sieve plate 204 and disturb the airflow up and down, further breaking up the airflow and promoting the separation of gases with different densities.

[0056] At the same time, the first screen plate 202 is driven by the connecting shaft 1033 and the limiting column 2033 to reciprocate up and down, thereby increasing the disturbance of the screening area and improving the separation effect.

[0057] The exhaust fan 1031 of the exhaust assembly rotates under the drive of the motor 1032, generating suction to extract the light gas in the top area through the air outlet, thereby achieving preliminary air separation.

[0058] When a certain amount of heavy gas accumulates in the bottom area of ​​the air separation cylinder 101, the liquid level sensor sends a signal to the controller.

[0059] After receiving the signal, the controller starts the electric push rod 301, pushes the connecting plate 302 and the hinge rod 303, and causes the valve plate 305 to rotate around the rotating shaft, thereby opening the outlet of the lower barrel and allowing the heavy gas to be discharged.

[0060] After the discharge is completed, the electric push rod 301 shrinks, and the valve plate 305 automatically returns to its original position under the action of the spring 304, closing the outlet of the discharge barrel and waiting for the next discharge.

[0061] Example 2

[0062] Based on Example 1, please refer to Figure 1-Figure 6 .

[0063] Replacement of scattered components:

[0064] Original structure: The stirring plate 2035 is connected through the universal shaft 2034 to achieve rotation and up and down disturbance.

[0065] Alternative structure: A spiral blade type scatterer is used, which is directly fixed on the connecting shaft 1033 and extends axially through the space between the first sieve plate 202 and the second sieve plate 204. The design of the spiral blade can simultaneously generate upward airflow disturbance and radial mixing effect when rotating.

[0066] Optimization of transmission mode:

[0067] Original structure: Power transmission and up and down movement are achieved through the meshing of the first bevel gear 2031 and the second bevel gear 2032 and the cooperation of the limit post 2033 and the annular bevel groove.

[0068] Replacement structure: adopt the mode of cooperation between cam mechanism and slide slot. A cam is installed on the connecting shaft 1033, and the cam profile design can push the slider on the first screen plate 202 to move up and down in the slide slot during the rotation process, thereby simplifying the transmission structure and reducing gear wear.

[0069] Improvements to valve stop assembly:

[0070] Original structure: The electric push rod 301 controls the opening and closing of the valve plate 305 through the connecting plate 302 and the hinge rod 303.

[0071] Replacement structure: Electromagnets are used to directly control the turning of the valve plate 305. Electromagnets are installed at the rotating shaft of the valve plate 305, and the attraction and release of the electromagnets are controlled by the presence or absence of current, thereby directly driving the opening and closing of the valve plate 305, reducing mechanical parts and improving response speed.

[0072] The spiral blade type disperser rotates with the connecting shaft 1033. Its spiral shape not only pushes the gas to rise axially during rotation, but also generates radial disturbance through the radial extension of the blades, effectively disperses particles and bubbles in the gas, and promotes gas separation.

[0073] The motor 1032 drives the connecting shaft 1033 to rotate, thereby driving the spiral blade type disperser to rotate, so as to disperse and mix the gas. At the same time, the up and down reciprocating motion of the first screen plate 202 is realized by the cam mechanism (or the optimized transmission mode), so as to further enhance the dispersion effect.

[0074] The cam mechanism, through its specific profile design, pushes the slider to move up and down in the slide slot during the rotation process, thereby driving the first screen plate 202 to perform an up and down disturbance.

[0075] The cam on the connecting shaft 1033 rotates with the motor 1032, and its profile pushes the slider to move along the slide slot, thereby driving the first screen plate 202 to move up and down. This design simplifies the transmission structure and reduces friction and wear between gears.

[0076] The electromagnet controls the presence or absence of its magnetism through electric current, thereby attracting or releasing the iron parts on the valve plate 305 to achieve the flipping of the valve plate 305 .

[0077] When heavy gas needs to be discharged, the controller sends a signal to the electromagnet, which generates magnetism when powered on, attracts the iron parts on the valve plate 305, and causes the valve plate 305 to flip open around the rotating shaft. After the discharge is completed, the electromagnet is powered off to release the magnetism, and the valve plate 305 is reset and closed under the action of the spring 304.

[0078] Example 3

[0079] Based on Example 1 and Example 2, please refer to Figure 1-Figure 6 .

[0080] The air cooling cylinder 102 is provided with a spraying mechanism for spraying cooling medium, and the electric push rod 301 is also provided with a liquid level sensor and a controller.

[0081] An air separation method comprising:

[0082] Step S1: Determine the required equipment and materials according to the preset plan;

[0083] The required device includes an air separation cylinder 101 for containing the air to be separated and serving as the main container of the separation process:

[0084] An air cooling cylinder 102 for injecting gas into the air separation cylinder 101 and cooling the gas by a cooling medium;

[0085] Mounting frame 103: includes exhaust fan 1031, motor 1032 and connecting shaft 1033, used to generate suction to extract light gas in the top area, and drive the breaking parts to disturb through the rotation of motor 1032;

[0086] Dispersing member: connected to the connecting shaft 1033, used to disturb the air in the air separation cylinder 101 up and down, change the angle of the disturbed air flow, so as to improve the separation efficiency;

[0087] Liquid level sensor: used to monitor the liquid level of heavy gas liquefaction in the air separation cylinder 101, and trigger the electric push rod 301 when the preset condition is reached;

[0088] The electric push rod 301 and the valve stop assembly on the second sieve plate 204 are used to discharge the heavy gas after it is liquefied.

[0089] Cooling medium spraying mechanism: used to spray cooling medium into the air cooling cylinder 102 to cool the incoming air;

[0090] Gas detection device: used to detect the discharged liquefied gas to ensure that it meets the preset plan standards;

[0091] Materials include:

[0092] Cooling medium: liquid nitrogen, used to cool the gas entering the air separation cylinder 101 .

[0093] Sealing material: Sealing film, used to ensure the sealing between the components of the air separation device to prevent gas leakage.

[0094] Electrical materials: a motor controller, used to drive electrical components such as the motor 1032 and the exhaust fan 1031 .

[0095] Step S2: Inject gas into the air separation cylinder 101 through the air cooling cylinder 102, and cool the gas through the cooling medium. The cooled gas rises or falls due to different masses, and gases of different masses are collected. If the collected gas does not meet the preset plan standards, it is re-injected into the air separation cylinder 101 through the air cooling cylinder 102 until the collected gas meets the preset plan standards.

[0096] Step S2 specifically includes:

[0097] Step S2.1: Start the motor 1032, the air enters the air cooling cylinder 102, and is cooled by the cooling medium sprayed by the spraying mechanism. The air enters the main part of the air separation cylinder 101. Inside the air separation cylinder 101, due to the density difference of the air components, the light gas will naturally rise and gather in the top area of ​​the air separation cylinder 101;

[0098] Step S2.2: At the same time, the exhaust assembly starts to work, and generates suction through the rotation of the exhaust fan 1031 in the mounting frame 103, and the light gas in the top area is extracted through the air outlet to achieve preliminary air separation;

[0099] Step S2.3: The exhaust fan 1031 rotates and cooperates with the connecting shaft 1033 on the motor 1032 to drive the scattered pieces to rotate and disturb the airflow up and down, while changing the angle of the disturbed airflow;

[0100] Step S2.4: Heavy gas will gather in the bottom area of ​​the air separation cylinder 101; when the preset condition of the liquid level sensor is reached, the electric push rod 301 starts the valve stop assembly through the controller on the second sieve plate 204 to discharge the liquefied heavy gas, and detects the discharged liquefied gas. If it does not meet the preset plan, it will be put back into separation.

[0101] Step S2.4 specifically includes: Step S2.41: Under the guidance of the connecting plate 302, the hinged rod 303 slides along the slide groove, pushing the valve plate 305 to rotate around the rotating axis, thereby opening the outlet of the discharge barrel; the heavy gas in the bottom area of ​​the air separation barrel 101 is discharged through the discharge barrel under the action of gravity to complete the collection; at the same time, the spring 304 serves as a reset auxiliary device to ensure that the valve plate 305 can automatically reset after the discharge is completed, preparing for the next discharge.

[0102] The air cooling cylinder 102 is internally designed with a spraying mechanism for uniformly spraying the cooling medium to effectively reduce the temperature of the air passing through the cylinder. The spraying mechanism is usually composed of a nozzle, a pipeline and a control system, and achieves uniform and effective cooling of the air entering the air separation cylinder 101 by precisely controlling the flow rate and spray angle of the cooling medium.

[0103] The air separation cylinder 101 is a core component, and its internal space forms natural stratification according to the different densities of air components. Light gases (such as nitrogen and lighter components in oxygen) rise due to their lower density and gather at the top of the cylinder, while heavy gases (such as carbon dioxide, condensed water vapor, etc.) sink to the bottom of the cylinder.

[0104] The exhaust assembly generates suction through the exhaust fan 1031 in the mounting frame 103 to accelerate the discharge of light gas at the top. The exhaust fan 1031 is driven by the motor 1032, and generates a negative pressure area through rotation to guide the gas flow. At the same time, the connecting shaft 1033 not only transmits power to the exhaust fan 1031, but also drives the scattered parts to rotate, thereby enhancing gas disturbance and improving separation efficiency.

[0105] The discharge of the heavy gas at the bottom is controlled by the valve stop assembly, which consists of an electric push rod 301, a connecting plate 302, a hinge rod 303, a spring 304 and a valve plate 305. The electric push rod 301 receives signals from the liquid level sensor and the controller. When the heavy gas in the bottom area reaches a preset liquid level, it pushes the valve plate 305 to rotate and open the outlet to discharge the gas. The spring 304 ensures that the valve plate 305 can automatically reset after the discharge.

[0106] The breaking piece is installed inside the air separation cylinder 101, and rotates with the connecting shaft 1033 to disturb the airflow up and down. Its design is to break the airflow stratification, increase the mixing and collision between gases, and promote the further separation of gases with different densities.

[0107] External air enters through the inlet of the air cooling cylinder 102, and the spraying mechanism is started to spray the cooling medium to cool the air. The cooled air enters the air separation cylinder 101.

[0108] In the air separation cylinder 101, due to the density difference of the air components, natural stratification is formed. The light gas rises to the top and the heavy gas sinks to the bottom.

[0109] The exhaust assembly is started, and the exhaust fan 1031 rotates to generate suction, extracting and collecting the light gas at the top through the air outlet. At the same time, the scattering part rotates to disturb the airflow and improve the separation efficiency.

[0110] When the heavy gas at the bottom reaches the preset level, the level sensor sends a signal to the controller, which drives the electric push rod 301 to work, pushes the valve plate 305 to rotate and open the outlet, and the heavy gas is discharged under the action of gravity. The discharged gas needs to be tested, and if it does not meet the standard, it needs to be separated again.

[0111] After the discharge is completed, the spring 304 assists the valve plate 305 to automatically reset and prepare for the next discharge. The entire system continues to work in a cycle until the standard requirements of the preset plan are met.

[0112] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the system is only a logical function division. There may be other division methods in actual implementation. For example, multiple systems or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0113] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An air separation device, characterized in that: The invention comprises an air separation mechanism (100), which comprises an air separation cylinder (101), an air cooling cylinder (102) and an exhaust assembly for extracting light gas from the air separation cylinder (101), wherein the air cooling cylinder (102) is installed on one side of the air separation cylinder (101) and is in communication with the air separation cylinder (101), and the exhaust assembly is installed on the air separation cylinder (101); A scattering and screening mechanism (200), comprising a limiting ring (201), a first sieve plate (202), a second sieve plate (204) and a scattering assembly, wherein the second sieve plate (204) is fixedly mounted on the inner wall of an air separation cylinder (101), the first sieve plate (202) is movably mounted on the inner wall of the air separation cylinder (101), the scattering assembly is located between the first sieve plate (202) and the second sieve plate (204) and is used to scatter the air between the first sieve plate (202) and the second sieve plate (204), the scattering assembly is slidably connected to the inner wall of the air separation cylinder (101), and the exhaust assembly is transmission-connected to the scattering assembly via the limiting ring (201); The discharge mechanism (300) comprises a lower material barrel, an electric push rod (301) and a valve stop assembly. The lower material barrel is installed on the inner wall of the bottom end of the air separation barrel (101) and is interconnected with the air separation barrel (101). The valve stop assembly is installed in the lower material barrel and is used to regularly discharge heavy gas in the air separation barrel (101). The electric push rod (301) is installed on the second sieve plate (204) and is connected to the valve stop assembly in a transmission manner.

2. An air separation device according to claim 1, characterized in that: An air outlet is provided at the top of the air separation cylinder (101); the exhaust assembly comprises a mounting frame (103) located in the air outlet and mounted on the inner wall of the air separation cylinder (101); an exhaust fan (1031) is rotatably arranged in the mounting frame (103); and a motor (1032) for transmission connection with the exhaust fan (1031) is provided on the mounting frame (103).

3. An air separation device according to claim 2, characterized in that: The breaking up assembly comprises a driving member and a breaking up member, wherein the driving member is used to drive the breaking up member to perform a synchronous up and down disturbance while rotating and disturbing the airflow, and the driving member is also used to change the angle at which the breaking up member disturbs the airflow.

4. An air separation device according to claim 3, characterized in that: The driving member comprises a connecting shaft (1033) which is transmission-mounted on the motor (1032); a first bevel gear (2031) is sleeved on the connecting shaft (1033); the connecting shaft (1033) is slidably sleeved on the first sieve plate (202); a mounting sleeve (203) is mounted on the first sieve plate (202); a fixed shaft (205) is also sleeved on the connecting shaft (1033); an outer wall of the fixed shaft (205) is fixedly mounted on the second sieve plate (204); an outer peripheral surface of the second sieve plate (204) is connected to an inner wall of the air separation cylinder (101); a second bevel gear (2032) is rotatably mounted on one side of the outer wall of the connecting shaft (1033); a limiting column (2033) is mounted on the second bevel gear (2032); and an annular inclined groove which cooperates with the limiting column (2033) for sliding is mounted on the inner wall of the mounting sleeve (203).

5. An air separation device according to claim 4, characterized in that: The disintegrating part comprises a stirring plate (2035), and both ends of the stirring plate (2035) are provided with universal shafts (2034); one of the universal shafts (2034) is connected to the outer wall of the mounting sleeve (203), a limiting groove is provided in the air separation cylinder (101), and the other universal shaft (2034) is slidably connected to the air separation cylinder (101) through the limiting groove.

6. An air separation device according to claim 4, characterized in that: The limiting ring (201) is arranged on the connecting shaft (1033), and the limiting ring (201) is used to limit the height of the first sieve plate (202) sliding upward in the air separation cylinder (101).

7. An air separation device according to claim 4, characterized in that: The valve stop assembly comprises an electric push rod (301) arranged on the outer wall of the fixed shaft (205), a connecting plate (302) is arranged at one end of the electric push rod (301), a slide groove is symmetrically arranged on the connecting plate (302), a hinge rod (303) is slidably arranged in the slide groove, a valve plate (305) is arranged at the bottom end of the air separation cylinder (101) through a rotating shaft, one end of the hinge rod (303) is hinged to the valve plate (305), and a spring (304) for assisting the valve plate (305) to return to its original position through the rotating shaft is arranged on the valve plate (305); The air cooling cylinder (102) is provided with a spraying mechanism for spraying cooling medium, and the electric push rod (301) is also provided with a liquid level sensor and a controller.

8. An air separation method, implemented based on an air separation device according to any one of claims 1 to 7, characterized in that: The method comprises: Step S1: Determine the required equipment and materials according to the preset plan; Step S2: injecting gas into the air separation cylinder (101) through the air cooling cylinder (102), and cooling the gas through the cooling medium. The gas after cooling rises or falls due to different masses, and the gases of different masses are collected. If the collected gas does not meet the preset plan standard, it is re-injected into the air separation cylinder (101) through the air cooling cylinder (102) until the collected gas meets the preset plan standard.

9. An air separation method according to claim 8, characterized in that: Step S2 specifically includes: Step S2.1: Start the motor (1032), air enters the air cooling cylinder (102), and is cooled by the cooling medium sprayed by the spraying mechanism. At this time, the light gas gathers in the top area of ​​the air separation cylinder (101); Step S2.2: the exhaust assembly starts to work, and generates suction through the rotation of the exhaust fan (1031) in the mounting frame (103), so as to extract the light gas in the top area through the air outlet, thereby achieving preliminary air separation; Step S2.3: The exhaust fan (1031) rotates and cooperates with the connecting shaft (1033) on the motor (1032) to drive the scattered pieces to rotate and disturb the air up and down, while changing the angle of the disturbed airflow; Step S2.4: Heavy gas gathers in the bottom area of ​​the air separation cylinder (101); when the preset condition of the liquid level sensor is reached, the electric push rod (301) starts the valve stop assembly through the controller on the second sieve plate (204) to discharge the liquefied heavy gas, and detects the discharged liquefied gas. If it does not meet the preset plan, it is re-started for separation.

10. An air separation method according to claim 9, characterized in that: Step S2.4 specifically includes: under the guidance of the connecting plate (302), the hinged rod (303) slides along the slide groove, pushing the valve plate (305) to rotate around the rotating axis, thereby opening the outlet of the lower barrel; the heavy gas in the bottom area of ​​the air separation barrel (101) is discharged through the lower barrel under the action of gravity to complete the collection; at the same time, the spring (304) is used to ensure that the valve plate (305) can automatically reset after the discharge is completed.

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