A gas purification apparatus

Abstract

This application relates to the field of gas purification technology, and in particular to a gas purification device, which includes a housing and two mounting plates disposed within the housing. Each mounting plate has multiple independent gas chambers with ventilation valves. Between the two mounting plates, an inlet tank and multiple purification tanks with a spindle-shaped cross-section are sequentially mounted in a front-to-back direction. The purification tanks are slidable, with their tips connected when aligned with the ventilation valves and sealed when offset. A slot is formed between the inlet tank and an adjacent purification tank for inserting a new tank. The multiple spindle-shaped tanks communicate with the multiple gas chambers to form a serpentine airflow channel. This application utilizes a step-by-step tank-changing mechanism to sequentially traverse all working positions of each purification tank. Combined with the reversal of the airflow direction within the tanks, it eliminates the problem of uneven consumption of purified materials from both the inter-tank and intra-tank dimensions, significantly improving material utilization. Furthermore, tank-changing operations can be completed without stopping the machine, significantly improving the continuous operation capability and material economy of the equipment.

Description

Technical Field

[0001] This application relates to the field of gas purification technology, and in particular to a gas purification device. Background Technology

[0002] Gas purification equipment is an important industrial device used to remove impurities from gases to obtain high-purity gases. High-purity gases are crucial for the fabrication of high-quality devices. Gas purification equipment can control the impurity content in gases below set standards, thereby preventing contamination of production equipment and improving product yield and reliability. Gas purification equipment mainly uses adsorption and other methods to remove gaseous impurities. A common method involves filling a purification tank with solid purification materials such as activated carbon. The purified gas enters from the inlet, flows through the material layer, and exits from the outlet. Impurities are adsorbed and captured by the material during the flow process.

[0003] The gas consistently flows through the material layer in the same direction, causing the purified material near the inlet to always come into contact with high-concentration impurities first, resulting in the highest adsorption load and fastest consumption rate. Conversely, the purified material near the outlet comes into contact with significantly lower-concentration impurities, resulting in a lower adsorption load and slower consumption rate. This uneven consumption means that even when the material at the inlet is completely saturated and ineffective, the material at the outlet still has a large amount of unused adsorption capacity, leading to low overall material utilization and requiring frequent replacement of the purified material. These replacements not only cause equipment downtime and affect production efficiency but also result in the waste of a large amount of underutilized purified material, significantly increasing operating costs. Summary of the Invention

[0004] To address the problems of uneven consumption of purified materials, low utilization rate, and high downtime replacement costs in traditional gas purification equipment, this application provides a gas purification device.

[0005] The gas purification device provided in this application adopts the following technical solution:

[0006] A gas purification device, comprising:

[0007] The body, on which an air inlet pipe and an air outlet pipe are connected;

[0008] Two mounting plates are arranged in parallel and installed on the body. The length direction of the mounting plates is defined as the front-to-back direction. Each mounting plate has multiple independent air chambers spaced apart in the front-to-back direction. Each mounting plate has at least one air valve at each air chamber.

[0009] Multiple shuttle-shaped cans, including an air inlet can and multiple purification cans, each with a shuttle-shaped cross-section, are arranged sequentially between two mounting plates along the front-back direction. The bulging portions in the middle of adjacent shuttle-shaped cans abut against each other. One tip of the air inlet can communicates with an air chamber, and the other tip communicates with an air inlet pipe. The purification cans are configured to slide along the front-back direction. The tip of each purification can has an opening. A slot is formed between the other tip of the air inlet can and the tip of an adjacent purification can for insertion of the purification can after material replacement.

[0010] When the tip of the purification tank is opposite to the vent valve, the two are in a connected state, and each of the air chambers is simultaneously connected to the adjacent tip, so that multiple shuttle-shaped tanks and multiple air chambers are connected to form a serpentine airflow channel, and the tail end of the serpentine airflow channel is connected to the outlet pipe; when the tip of the purification tank and the vent valve are offset, both are in a sealed state.

[0011] Optionally, the rear side of the air inlet tank is elastic, and the bulge height of the rear side of the air inlet tank is greater than the bulge height of the side of the purification tank.

[0012] Optionally, the mounting plate is provided with magnetic plates corresponding to the air holes one by one, and the tip of the purification tank is provided with a magnetic plate. When the tip of the purification tank is connected to the air valve, the magnetic plates attract each other.

[0013] Optionally, the machine body is provided with a stop member, which has a stop state and an unlock state. When the tip of the purification tank is connected to the vent valve, the stop member is in the stop state to limit the rearward movement of the last purification tank. When the stop member is in the unlock state, the restriction on the last purification tank is released.

[0014] Optionally, each of the purification tanks has a magnetic attraction component on the bulges on the front and rear sides, so that adjacent purification tanks are in an attractive state.

[0015] Optionally, the mounting plate is provided with a plurality of air holes communicating with the air chambers. One air chamber located at the rear end is provided with one air hole, and the remaining air chambers are provided with two air holes. The venting valve includes a sealing plate connected to the inner sidewall of the air chamber by a first spring. The sealing plate is provided with a magnetic repulsion plate, and the tip of the purification tank is provided with a magnetic plate.

[0016] When the tip of the purification vessel is away from the vent, the sealing plate seals the vent under the action of the first spring; when the tip of the purification vessel is directly opposite the vent, the magnetic repulsion plate and the magnetic plate repel each other, and the sealing plate moves away from the vent so that the gas chamber communicates with the interior of the purification vessel.

[0017] Optionally, the pores are constricted pores with a gradually decreasing diameter from the inside to the outside.

[0018] Optionally, each of the air chambers has a settling trough on the inner bottom wall near the air inlet tank, and the machine body is connected to a dust discharge pipe, which extends into the mounting plate and communicates with the settling trough.

[0019] Optionally, the purification tank is provided with a slider that extends along the long axis of the spindle shape of the purification tank. The inner wall of the machine is provided with a guide rail that extends in the front-back direction. The slider slides on the guide rail. The front and rear ends of the guide rail are open. The slider is configured to slide into the guide rail from the front end and slide out from the rear end of the guide rail.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application utilizes a sliding fit between multiple shuttle-shaped purification tanks and mounting plates with independent air chambers on both sides. When the purification tank is in its working position, its tip connects to the corresponding air valve. Adjacent shuttle-shaped tanks alternately connect with the mounting plates, forming a serpentine airflow channel. This allows the gas to be purified to flow sequentially through each purification tank, with opposite flow directions in adjacent tanks. During the step-change process, as the purification tank slides from one position to the next, the alternating structure of the serpentine channel reverses the airflow direction inside the tank. This ensures that the same purification tank experiences alternating high-concentration impurities at both ends throughout its lifespan, avoiding the uneven consumption seen in tanks with a fixed flow direction where the inlet end is saturated first while the outlet end remains fresh. Simultaneously, through the step-change mechanism, each purification tank sequentially experiences all working positions from the inlet to the outlet during its complete lifespan, moving step-by-step from the position with the highest impurity concentration to the position with the lowest impurity concentration. This ensures that the total adsorption capacity of each tank is nearly equal, fundamentally eliminating consumption differences between tanks and allowing the purified material in each tank to nearly fully utilize its adsorption capacity. The equipment completely solves the problem of low material utilization in traditional purifiers from both the "tank room" and "tank room" dimensions, significantly extending the continuous operating time of the equipment and reducing material costs.

[0022] 2. This application utilizes the triple action of the elastic surface of the inlet tank, the magnetic attraction between adjacent purification tanks, and the magnetic attraction plate on the mounting plate and the magnetic plate at the tip of the purification tank to apply a stable axial preload and precise positioning force to the entire tank assembly during purification operation. The elastic surface of the inlet tank, in conjunction with the locking of the stop, provides the basic preload; the magnetic attraction between the bulging parts of adjacent tanks forms a secondary positioning guarantee; and the alignment and attraction between the magnetic attraction plate on the mounting plate and the magnetic plate of the purification tank achieves tertiary precise positioning. These three elements together eliminate axial gaps between tanks, ensuring that the tip of each purification tank and the vent valve are always precisely aligned. Even if the elastic preload of the inlet tank slightly decreases due to long-term use, the magnetic attraction force still maintains a tight fit. This multi-layered preload positioning structure also ensures the stability of the tank assembly when subjected to airflow pulsation or external vibration, guaranteeing reliable sealing of the airflow channel under continuous operation and frequent tank replacement conditions.

[0023] 3. This application utilizes the characteristic that the rear side of the air inlet tank is made of elastic material and its bulge height is greater than that of the purification tank side. Combined with the energy storage of the elastic surface when the new tank is inserted into the slot, and the high-pressure gas pressure formed in the closed space by the continuous air supply from the air inlet pipe, the tank changing process is achieved without power drive. The new tank is inserted, compressing the elastic surface and pushing the tank group backward by half a shaft distance, so that the tip of each purification tank is misaligned with the air valve and the magnetic locking is released; after the saturated tank at the end is pushed over the stop and discharged, the energy released by the elastic surface and the high-pressure gas pressure together push the tank group to continue to move backward. With the gradually increasing attraction between the magnetic plate and the next magnetic plate, the precise positioning of the tank is completed. The entire stepping tank changing process does not require complex drive devices such as external motors and cylinders. It can achieve adaptive continuous material changing by relying on the synergistic effect of elastic energy storage, gas accumulation pressure and magnetic force. The structure is simple and the operation is reliable.

[0024] 4. The vent valve of this application adopts an inside-out sealing structure. The sealing plate seals the vent under the action of spring thrust. The gas pressure inside the gas chamber acts on the sealing plate in the same direction as the sealing direction. The higher the gas pressure inside the gas chamber, the greater the sealing pressure between the sealing plate and the side wall of the vent. This ensures that even if the pressure in the inlet tank and the gas chamber increases during the tank replacement process, there will be no leakage downstream through the closed vent, ensuring the continuous stability of the downstream gas purity during the tank replacement. When the tank replacement is completed and the vent valve is reopened, the pressure in the inlet tank and the gas chamber is significantly higher than before the new tank is inserted. The pulse airflow generated at the moment of connection rushes into the newly inserted purification tank at high speed, which can disperse any trace dust or loose materials that may be present at the inlet of the new tank, avoiding local blockage during initial operation. It also provides conditions for sealing detection using sound or pressure changes.

[0025] 5. This application breaks down the traditional single large-volume purification tank into multiple independent small shuttle-shaped purification tanks. The purification function is completed in relay by multiple small tanks with the same structure. If one of the purification tanks is damaged, the seal fails, or the internal components are damaged, the faulty tank can be discharged normally as a saturation tank during the step-by-step tank replacement process, and a new tank can be inserted from the slot to restore all functions. Operators can remove the discharged faulty tank for repair or replacement, while the other intact purification tanks remain in the equipment to continue operation, without the need for a complete shutdown of the entire machine or the purchase and replacement of the entire large purification container. This modular design limits the impact of a single point of failure to an individual tank, significantly shortening maintenance time, reducing the types of spare parts inventory and replacement costs, and fundamentally improving the maintainability and continuous operational reliability of the equipment.

[0026] 6. The purification tank of this application is designed as a shuttle shape, and the air vent is designed as a constriction. When the gas enters the constriction through a 90° turn in the gas chamber, it generates a vortex, achieving initial mixing. Subsequently, the airflow flows around both sides of the sealing plate along the inclined inner wall to the constriction outlet. The two airflows collide at the narrowest point of the constriction, further enhancing the mixing and making the gas concentration distribution in the purification tank more uniform, which is conducive to the uniform adsorption of materials. At the same time, the dust in the high-speed airflow loses kinetic energy after impacting the top plate of the constriction due to inertia, and settles into the settling tank at the bottom under the action of gravity, achieving inertial dust removal. At each turn of the serpentine channel, the gas changes direction, and the dust in the airflow cannot follow the sharp turn due to inertia and detaches from the main airflow and settles into the settling tank. The setting of the settling tank effectively prevents the settled dust from being re-entrained and forming secondary dust, which can be cleaned periodically through the dust discharge pipe. Airflow mixing and inertial dust removal are achieved simultaneously in the gas chamber and constriction structure, simplifying the equipment structure and improving the efficiency of impurity removal. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a gas purification device in one embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the gas purification device from another perspective in one embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the internal structure of a gas purification device in one embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the structure of the air inlet tank and the purification tank in one embodiment of this application;

[0031] Figure 5 yes Figure 1 Side view of the gas purification equipment;

[0032] Figure 6 yes Figure 5 Cross-sectional view along the middle AA;

[0033] Figure 7 yes Figure 6 Enlarged view of point B in the middle;

[0034] Figure 8 yes Figure 7 A schematic diagram of the structure of the sealing plate away from the vent.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Body; 11. Inlet pipe; 12. Outlet pipe; 13. Guide rail;

[0037] 2. Mounting plate; 21. Air chamber; 22. Magnetic suction plate; 23. Air hole; 24. First spring; 25. Sealing plate; 26. Magnetic repulsion plate; 27. Fixing plate; 28. Top plate;

[0038] 3. Air inlet; 31. Slot; 32. Air outlet;

[0039] 4. Purification vessel; 41. Opening; 42. Magnetic sheet; 43. Slider; 44. Ball bearing;

[0040] 5. Stop; 51. Wedge block; 52. Second spring. Detailed Implementation

[0041] The following will be combined with the appendix Figure 1-8 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] This application discloses a gas purification device, such as... Figure 1 and Figure 2 As shown, the device includes a body 1, on which an air inlet pipe 11 and an air outlet pipe 12 are connected. Figure 3 As shown, two parallel mounting plates 2 are fixed inside the body 1, with the length direction of the mounting plates 2 serving as the front-back direction. Each mounting plate 2 has multiple independent air chambers 21 (e.g., ...). Figure 6 As shown in the figure, these air chambers 21 are arranged at intervals in the front-to-back direction, and each air chamber 21 has at least one vent valve.

[0043] like Figure 3 and Figure 4 As shown, between the two mounting plates 2, an air inlet tank 3 and multiple purification tanks 4 are installed sequentially in the front-to-back direction. The cross-section of all tanks (i.e., air inlet tank 3 and multiple purification tanks 4) is spindle-shaped, and the bulging parts in the middle of adjacent tanks abut against each other.

[0044] The air inlet canister 3 is fixed inside the body 1. One of the pointed ends of the air inlet canister 3 has an air outlet 32 ​​extending vertically. The air outlet 32 ​​communicates with an air chamber 21 within the mounting plate 2, while the other pointed end communicates with the air inlet pipe 11 (e.g., ...). Figure 6 (As shown). The side of the air inlet tank 3 facing the purification tank 4 is designed as a convex surface with a central protrusion, while the side facing away from the purification tank 4 can be designed as a flat or concave surface, or a convex surface with a central protrusion. The rear side of the air inlet tank 3 is made of an elastic material, giving it elastic compression capability. The bulge height of the rear side of the air inlet tank 3 is greater than the bulge height of the sides of each purification tank 4, thereby storing more elastic energy and facilitating the rebound of the rear side of the air inlet tank 3. The bulge height of the rear side of the air inlet tank 3 is the distance from the center of the air inlet tank 3 to the maximum bulge position of the rear side, and the bulge height of the side of the purification tank 4 is the distance from the center of the purification tank 4 to the maximum bulge position of the side.

[0045] Multiple purification vessels 4 are configured to slide in the front-to-back direction. Each purification vessel 4 has a slider 43 fixed on it, extending along its spindle-shaped long axis. A guide rail 13 extending in the front-to-back direction is provided on the inner top wall of the body 1. The slider 43 is engaged with the guide rail 13 and can slide back and forth. Both ends of the guide rail 13 are open, allowing the purification vessel 4 to slide in from the front end and out from the rear end of the guide rail 13. To reduce movement resistance, multiple ball bearings 44 can also be provided at the bottom of the purification vessel 4.

[0046] Between the air inlet tank 3 and the adjacent first purification tank 4, a slot 31 is naturally formed at the two pointed ends due to its fusiform profile. This slot 31 is used for the lateral insertion of a new purification tank 4 without stopping the machine. In an optional embodiment, the machine body 1 may be provided with a slide rail extending along the long axis of the fusiform shape. The new purification tank 4 moves along the slide rail and is inserted between the air inlet tank 3 and the first purification tank 4. When fully inserted, the new purification tank 4 disengages from the slide rail. Thus, during the insertion process, the new purification tank 4 first moves along the long axis of the fusiform shape and then along the short axis. The side walls of the machine body 1 opposite to the slot 31 and the side walls opposite to the last purification tank 4 are provided with operating ports, each equipped with a hinged door. Opening the front hinged door allows the new purification tank 4 to be inserted laterally into the slot 31 through the operating port, while opening the rear hinged door facilitates the removal of the saturated purification tank 4 through the operating port.

[0047] Each purification tank 4 has a vertically extending opening 41 at its tip, and a sealing ring is provided at the opening 41. When the purification tank 4 slides to the point where its tip is directly opposite the vent valve, the two are in a connected state; when the tip of the purification tank 4 and the vent valve are offset from each other, both are switched to a sealed state, wherein the tip of the purification tank 4 abuts against the mounting plate 2 to achieve a seal.

[0048] Each purification vessel 4 has a magnetic plate 42 at its tip. A magnetic attracting plate 22 is fixed to the corresponding tip of each purification vessel 4 at the connection point. When the purification vessel 4 slides until its tip is directly opposite the vent valve, the magnetic plate 42 at the tip of the purification vessel 4 attracts the magnetic attracting plate 22, thus providing precise positioning and holding force. The bulges on the front and rear sides of each purification vessel 4 are equipped with magnetic attracting elements, and adjacent vessels attract each other through these magnetic attracting elements. Figure 4 As shown, a stop 5 is also provided inside the body 1, which has a stopped state and an unlocked state. When the tip of the purification tank 4 is connected to the vent valve, the stop 5 is in the stopped state, blocking the last purification tank 4 to restrict its backward movement. When the stop 5 switches to the unlocked state, the restriction on the last purification tank 4 is released.

[0049] In an optional embodiment, the stop 5 includes a wedge block 51 and a second spring 52. A groove is provided on the side wall of the body 1, and the wedge block 51 is slidably installed in the groove via the second spring 52. The wedge block 51 is located behind the last purification tank 4, with its wedge surface facing forward. When a new purification tank 4 is inserted into the slot 31, the rear side of the air inlet tank 3 is compressed, and all purification tanks 4 are simultaneously squeezed and moved rearward. The last purification tank 4 presses against the wedge block 51, causing the wedge block 51 to move to the unlocked state. After the last purification tank 4 passes the wedge block 51, the wedge block 51 protrudes from the groove under the action of the second spring 52, abutting against the rear side of the next purification tank 4, thus continuing to limit the movement of the next purification tank 4.

[0050] The vent valve on mounting plate 2 is switched on and off via the following structure. For example... Figure 6 and Figure 7 As shown, each air chamber 21 has an air hole 23 on its wall corresponding to the tip of the shuttle-shaped can. Multiple fixing plates 27 and an annular top plate 28 are fixed to the sidewalls of the air holes 23. The fixing plates 27 and top plate 28 are located on both sides of the sealing plate 25. The multiple fixing plates 27 are connected to the sealing plate 25 by multiple first springs 24. Under the thrust of the first springs 24, the sealing plate 25 abuts against the top plate 28 to seal the air hole 23. A magnetic repulsion plate 26 is fixed to the side of the sealing plate 25 facing the purification tank 4. The magnetic repulsion plate 26 and the magnetic attraction plate 22 can be staggered vertically and arranged at different heights.

[0051] When the purification vessel 4 is moved until its tip is directly aligned with the vent 23, a repulsive force is generated between the magnetic plate 42 and the magnetic repulsion plate 26. This repulsive force overcomes the force of the first spring 24 and pushes open the sealing plate 25, allowing the gas chamber 21 to connect with the interior of the purification vessel 4. When the purification vessel 4 is moved away and the tip is misaligned with the vent 23, the magnetic repulsion disappears, and the sealing plate 25 re-closes the vent 23 under the restoring force of the first spring 24, cutting off the passage.

[0052] The sealing plate 25 seals the vent 23 from the inside out. The gas pressure inside the gas chamber 21 acts on the sealing plate 25. The direction of the gas pressure is the same as the sealing direction. The higher the gas pressure, the greater the sealing pressure between the sealing plate 25 and the side wall of the vent 23. This ensures that even if the pressure inside the gas chamber 21 increases during tank replacement, there will be no leakage downstream through the closed vent 23.

[0053] In addition, each air chamber 21 and air hole 23 has a settling tank on its inner bottom wall. A dust discharge pipe is connected to the body 1. The dust discharge pipe extends into the mounting plate 2 and communicates with the settling tank to periodically discharge accumulated dust.

[0054] During purification operation, the stop 5 is in a stopped state, locking the last purification tank 4. The elastic surface of the inlet tank 3 remains moderately compressed, working in conjunction with the stop 5 to apply a pre-tightening force to the entire tank assembly. Simultaneously, the magnetic attraction between the bulging parts of adjacent purification tanks 4 attracts each other. Furthermore, the magnetic plate 22 on the mounting plate 2 attracts the magnetic plate 42 at the tip of the purification tank 4. These three factors work together to eliminate the axial gap between the tanks, ensuring that the tip of each purification tank 4 is aligned with the vent valve, forming a triple seal. Even if the elastic pre-tightening force of the inlet tank 3 slightly decreases due to long-term use, the magnetic attraction still maintains a tight fit. This pre-tightening force and attraction also keep the tank assembly stable when subjected to airflow pulsations or external vibrations, ensuring that the tip and vent valve are always precisely aligned.

[0055] Multiple shuttle-shaped canisters are alternately connected to multiple air chambers 21, forming a serpentine airflow channel. Gas enters the intake canister 3 through the intake pipe 11, enters the first purification canister 4 through the air chamber 21, then enters the second purification canister 4 through the next air chamber 21, and so on, finally exiting from the air chamber 21 connected to the exhaust pipe 12, and the gas flows in opposite directions in adjacent purification canisters 4.

[0056] When the material in the last purification tank 4 is saturated, the equipment can complete a step-by-step tank changing operation without stopping the machine. A new purification tank 4 is inserted laterally into the slot 31 between the air inlet tank 3 and the first purification tank 4. The front half of the new tank compresses the elastic surface of the air inlet tank 3 to further compress and store energy, while the raised contour of its rear half pushes the first purification tank 4 backward, causing all purification tanks 4 to move backward by approximately half the length of the minor axis of the purification tank 4. This displacement completely displaces the tip of each purification tank 4 from the original vent valve, releasing the magnetic attraction plate 22 and the magnetic force plate 42, allowing all purification tanks 4 to move freely. At the same time, all vent valves are sealed and closed by the sealing plate 25. The last saturated purification tank 4 moves backward under the thrust of the tank group, switching the stop 5 to the unlocked state. After the saturated purification tank 4 passes the stop 5, the stop 5 returns to the stop state, blocking the other purification tanks 4.

[0057] As the new canister is inserted, the internal volume of the air inlet canister 3 decreases, while the air inlet pipe 11 continues to supply air, causing the gas pressure in the air inlet canister 3 and the connected air chamber 21 to rise rapidly. After the new canister is fully inserted and disengaged from the slide rail, the elastic surface of the air inlet canister 3 releases the stored energy, which, together with the high-pressure gas pressure in the enclosed space, pushes all the remaining purification canisters 4 to continue moving backward. During the movement, the magnetic plates 42 at the tips of each purification canister 4 gradually approach the magnetic suction plate 22 corresponding to the next working position. The magnetic attraction increases as the distance shortens, generating a backward pulling force, which, together with the elastic thrust, drives the canister assembly. When the magnetic plate 42 is fully aligned and attracted to the next magnetic suction plate 22, the canister assembly has moved into position, completing the precise positioning of the canisters.

[0058] The tip of each purification tank 4 is aligned with the corresponding vent 23 again. The repulsive force of the magnetic plate 42 and the magnetic repulsion plate 26 pushes open the sealing plate 25, and the vent valve reopens. At this time, the pressure in the inlet tank 3 and the air chamber 21 is significantly higher than before the new tank is inserted. A pulse airflow is generated at high speed and rushes into the newly inserted purification tank 4. This pulse airflow can disperse any trace dust that may be present at the inlet of the new tank, avoiding local blockage during initial operation. If the purification tank 4 is not properly sealed, the high-speed leaking airflow will produce an audible hissing sound. The operator or sensor can judge the sealing status based on this. Based on this principle, sealing detection can be performed before the purification process. Specifically, during sealing detection, several empty tanks without material are pre-placed in the machine body 1. A new empty tank is inserted horizontally from the slot 31, with one of its tips aligned with the vent valve. Test gas is introduced from the inlet pipe 11, and the high pressure of the first air chamber 21 is used to check the sealing performance of the tip and the tank body. After passing the inspection, insert the next new empty can and perform a seal test on the newly inserted empty can. Continue in this way until both ends of all empty cans have passed the inspection.

[0059] Through a step-by-step tank changing process, the newly added purification tank 4 sequentially passes through each working position from the first position closest to the inlet to the last position. At the inlet, the impurity concentration is the highest, and the purification tank 4 bears the greatest adsorption load. As subsequent new tanks are continuously added and pushed backward, more purification tanks 4 in front of it pre-adsorb some impurities, thus the impurity concentration at that position gradually decreases, and the adsorption load gradually decreases. Since each purification tank 4 goes through all positions in turn during its complete life cycle, the total adsorption capacity of each tank tends to be equal, fundamentally eliminating the consumption differences between tanks and ensuring that the purified material in each tank can exert its adsorption capacity equally.

[0060] Meanwhile, when the purification tank 4 slides from one position to the next, the airflow direction inside it will be reversed due to the alternating structure of the serpentine channel. The original inlet end becomes the outlet end, so that the front and rear ends of the packing inside the tank are alternately subjected to the impact of high concentration impurities, avoiding the local uneven consumption of "the inlet end is saturated first and the outlet end is still fresh" when the flow direction is fixed.

[0061] In this way, the equipment solves the problem of low material utilization in traditional purifiers from two dimensions: "between tanks" and "inside tanks". The elastic surface of the inlet tank 3 and the magnetic force provide a non-powered tank changing thrust. Combined with the fact that new tanks can be inserted from slot 31 and saturated tanks can be automatically discharged from the end, the entire tank changing process does not require machine shutdown or complex external drives, realizing adaptive continuous material changing, which greatly improves the continuous operation capability and material economy of the gas purification equipment.

[0062] This application employs multiple independent small shuttle-shaped purification tanks 4, significantly reducing the difficulty and cost of equipment maintenance. When a single large tank suffers damage, seal failure, or internal component damage, it often requires a complete shutdown and replacement or return to the factory for repair of the entire large tank. This results in long maintenance cycles, high spare parts costs, and disruption of production continuity due to the overall machine downtime. In this solution, however, the purification function is completed in relay by multiple small tanks with identical structures. If one of the purification tanks 4 is damaged, it can be discharged normally as a saturation tank during the step-by-step tank replacement process, and a new tank can be inserted through slot 31 to restore all functions. Operators can remove the discharged faulty tank for repair or replacement, while the other intact purification tanks 4 remain in the equipment to continue operating. This not only significantly shortens maintenance time but also substantially improves the maintainability and continuous operational reliability of the equipment.

[0063] The air inlet tank 3 is larger than each of the purification tanks 4, and the bulge on its rear side is significantly greater than that on the side of the purification tank 4, making the air inlet tank 3 more prominent in the tank assembly. This difference allows operators to visually distinguish the inlet and outlet ends simply by the degree of bulge in the middle of the spindle-shaped tank, without needing to check the internal airflow pipes or markings; the side where the air inlet tank 3 is located is the inlet end. This visual identification feature effectively avoids misinsertion or reversed pipe connections due to confusion of direction when replacing the purification tank 4 or performing maintenance operations, reducing the risk of misoperation and improving the ease of operation of the equipment.

[0064] In an optional embodiment, the pore 23 is a shrinkage pore with a gradually decreasing diameter from the inside to the outside. For example... Figure 8 As shown, the transverse airflow in the air chamber 21 first undergoes a 90° turn, and the vortex generated by the turn causes the airflow to mix initially. Then, when the sealing plate 25 moves away from the top plate 28, the airflow goes around the front and rear sides of the sealing plate 25 and flows along the inclined inner wall of the air hole 23 to the constriction. The two airflows collide at the narrowest point of the constriction, further enhancing the mixing. Then, the gas enters the flared section of the purification tank 4, the flow rate decreases and diffuses to the surroundings, filling the entire cross section at the widest point in the middle of the tank.

[0065] Meanwhile, dust particles in the high-speed airflow impact the top plate 28 at the constriction due to inertia. After losing kinetic energy, they no longer move with the airflow and settle into the settling trough at the bottom of the air chamber 21 under gravity, thus achieving inertial dust removal. At each bend in the serpentine channel, the gas changes direction within the air chamber 21. Dust particles in the airflow, due to inertia, cannot follow the sharp bends and detach from the main airflow, settling into the settling trough. The settling trough effectively prevents the settled dust from being re-entrained and forming secondary dust. It can be cleaned periodically through the dust exhaust pipe.

[0066] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0067] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gas purification device, characterized in that, include: The body, on which an air inlet pipe (11) and an air outlet pipe (12) are connected; Two mounting plates (2) are arranged in parallel and installed on the body. The length direction of the mounting plate (2) is defined as the front-back direction. Each mounting plate (2) has multiple independent air chambers (21) spaced apart in the front-back direction. Each mounting plate (2) has at least one air valve at each air chamber (21). Multiple shuttle-shaped cans, including an air inlet can (3) and multiple purification cans (4), are arranged in a shuttle shape in cross-section and installed between two mounting plates (2) in a front-back direction. The middle bulges of adjacent shuttle-shaped cans abut against each other. One tip of the air inlet can (3) is connected to a gas chamber (21), and the other tip is connected to the air inlet pipe (11). The purification cans (4) are configured to slide in a front-back direction. The tip of each purification can (4) is provided with an opening (41). A slot (31) is formed between the other tip of the air inlet can (3) and the tip of the adjacent purification can (4) for the purification can (4) to be inserted after material replacement. When the tip of the purification tank (4) is opposite to the vent valve, the two are in a connected state, and each of the air chambers (21) is simultaneously connected to the adjacent tip, so that multiple shuttle-shaped tanks and multiple air chambers (21) are connected to form a serpentine airflow channel, and the tail end of the serpentine airflow channel is connected to the outlet pipe (12); when the tip of the purification tank (4) is offset from the vent valve, both are in a sealed state.

2. The gas purification device according to claim 1, characterized in that, The rear side of the air inlet tank (3) is elastic, and the bulge height of the rear side of the air inlet tank (3) is greater than the bulge height of the side of the purification tank (4).

3. The gas purification device according to claim 2, characterized in that, The mounting plate (2) is provided with magnetic plates (22) that correspond one-to-one with the air holes (23). The tip of the purification tank (4) is provided with a magnetic plate (42). When the tip of the purification tank (4) is connected to the air valve, the magnetic plates (22) and the magnetic plates (42) attract each other.

4. The gas purification device according to claim 2, characterized in that, The machine body is provided with a stop (5), which has a stop state and an unlock state. When the tip of the purification tank (4) is connected to the ventilation valve, the stop (5) is in the stop state to restrict the rearward movement of the last purification tank (4). When the stop (5) is in the unlock state, the restriction on the last purification tank (4) is released.

5. The gas purification device according to claim 1, characterized in that, Each of the purification tanks (4) has a magnetic attraction component on the bulging part on the front and rear sides, and the adjacent purification tanks (4) are in a state of mutual attraction.

6. The gas purification device according to claim 1, characterized in that, The mounting plate (2) is provided with a plurality of air holes (23) communicating with the air chamber (21). One air chamber (21) located at the rear end is provided with one air hole (23), and the other air chambers (21) are provided with two air holes (23). The ventilation valve includes a sealing plate (25) connected to the inner wall of the air chamber (21) by a first spring (24). The sealing plate (25) is provided with a magnetic repulsion plate (26). The tip of the purification tank (4) is provided with a magnetic plate (42). When the tip of the purification vessel (4) is far away from the vent (23), the sealing plate (25) seals the vent (23) under the thrust of the first spring (24); when the tip of the purification vessel (4) is directly opposite the vent (23), the magnetic repulsion plate (26) repels the magnetic plate (42), and the sealing plate (25) moves away from the vent (23) so that the gas chamber (21) communicates with the interior of the purification vessel (4).

7. The gas purification apparatus according to claim 6, characterized in that, The pores (23) are constricted pores with gradually decreasing diameters from the inside to the outside.

8. The gas purification apparatus according to claim 1 or 7, characterized in that, Each of the air chambers (21) has a settling trough on the inner bottom wall near the air inlet tank (3). The machine body is connected to a dust discharge pipe, which extends into the mounting plate (2) and communicates with the settling trough.

9. The gas purification device according to claim 1, characterized in that, The purification tank (4) is provided with a slider (43), which extends along the long axis of the spindle shape of the purification tank (4). The inner wall of the machine is provided with a guide rail (13) extending in the front-back direction. The slider (43) slides on the guide rail (13). The front and rear ends of the guide rail (13) are provided with openings (41). The slider (43) is configured to slide into the guide rail (13) from the front end and slide out from the rear end of the guide rail (13).

Images