Multi-functional intelligent control matrix oxygen generator

Abstract

The application discloses a multifunctional intelligent control matrix type oxygen generator, which comprises at least two second tank bodies, the inside of the second tank bodies is filled with molecular sieve particles, the first end of the second tank body is provided with a first air inlet pipe, the second end is provided with a first air outlet pipe, and the multifunctional intelligent control matrix type oxygen generator further comprises a first tank body, a plurality of the second tank bodies are uniformly arranged in the first tank body with the axis of the first tank body as the center, fourth sealing plates are arranged between adjacent second tank bodies, the second tank bodies and the fourth sealing plates form isolated cylinder bodies, the isolated cylinder bodies divide the first tank body into an inner space and an outer space, the first tank body is provided with a second air inlet pipe for air inlet of the inner space and a second air outlet pipe for air outlet of the outer space, the matrix type oxygen generator can realize axial flow adsorption tank axial flow oxygen production and radial flow oxygen production, meets different oxygen production use scenes, and is provided with a dust removal structure, so that air inlet cleanliness is ensured and oxygen production efficiency is ensured.

Description

Technical Field

[0001] This invention relates to the field of oxygen generation equipment technology, and in particular to a multifunctional intelligent control matrix oxygen generator. Background Technology

[0002] A mine shaft is a vertical or inclined passage (such as a vertical shaft or inclined shaft) excavated in a mine for the extraction of mineral resources. It is a critical infrastructure for transportation, ventilation, drainage, and personnel access in underground mines. The working environment in mines is harsh, and ventilation systems are typically installed to create air convection between the mine interior and the outside. However, during deep mining, the long ventilation distances and poor airflow can easily lead to a decrease in oxygen concentration, affecting miners' normal work. Some ventilation systems are equipped with corresponding oxygen generation equipment to supply oxygen to the mine interior. A matrix oxygen generator is an oxygen generation device based on molecular sieve adsorption technology, which improves oxygen production and energy efficiency through a modular matrix design. A matrix oxygen generator is generally equipped with multiple adsorption towers, which work together (alternating between adsorption and desorption) to achieve continuous oxygen production. While the adsorption towers can supply oxygen on-site using molecular sieve oxygen generation technology (PSA), high concentrations of dust in the mine air (such as coal dust and rock dust) can clog the pores of the molecular sieves, reducing oxygen generation efficiency and shortening equipment lifespan. Furthermore, the adsorption tanks of axial flow oxygen generators are typically cylindrical, with the gas flowing axially within the adsorption tower during both adsorption and desorption processes, resulting in a single gas flow pattern. Due to the relatively small cross-sectional area and long axial flow path of the axial flow adsorption tower, flow resistance is high, leading to significant pressure drop. When gas passes through the molecular sieve bed at high speed, excessive pressure drop creates fluid shear and collision forces on the molecular sieve particles, intensifying friction between particles and causing localized pulverization. In addition, the longer mass transfer path increases the time required for adsorption and desorption processes, resulting in lower overall efficiency. Summary of the Invention

[0003] This invention addresses the shortcomings of existing axial flow matrix oxygen generators used in mine ventilation systems, such as susceptibility to dust and the single gas flow pattern (axial flow only) in the oxygen adsorption tank. It proposes a multi-functional intelligent control matrix oxygen generator that incorporates a dust removal structure on the adsorption tank, improves the tank structure, and achieves multiple oxygen production modes with various gas flow patterns through a ring-matrix arrangement of the adsorption tanks to meet different oxygen production needs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A multifunctional intelligent control matrix oxygen generator includes at least two second tanks, each containing molecular sieve particles. Each second tank has a first air inlet pipe at its first end and a first exhaust pipe at its second end. The generator also includes at least one first tank. Multiple second tanks are evenly arranged around the axis of the first tank inside the first tank. A fourth sealing plate is provided between adjacent second tanks. The second tanks and the fourth sealing plates enclose an isolation cylinder, which divides the first tank into an inner space and an outer space. Each first tank has a second air inlet pipe for air intake into the inner space and a second exhaust pipe for air exhaust into the outer space. The first exhaust pipe of the second tank is connected to the second air inlet pipe via a balance pipe.

[0005] When the two perforated plates are open, the end of the second tank is sealed, and the inner and outer spaces are connected. The airflow flows from the inner space through the second tank to the outer space, forming a radial flow. When the two perforated plates are closed, the inner and outer spaces are isolated, and the airflow flows from the first end to the second end of the second tank, forming an axial flow.

[0006] The second tank has sealing structures at both ends to allow it to be either open or sealed. Perforated plates and first sealing plates are located on either side of the second tank, one in the outer space and the other in the inner space. The area of ​​each perforated plate is larger than the radial area of ​​the second tank. The perforated plates have through-holes for airflow. The first sealing plate is either separated from or attached to the perforated plates to allow them to be open or closed. When both perforated plates are open, the second tank is sealed, and the inner and outer spaces are connected. Airflow flows radially from the inner space through the second tank to the outer space. When both perforated plates are closed, the inner and outer spaces are isolated, and airflow flows axially from the first end to the second end of the second tank.

[0007] Preferably, a first flow equalization plate and a second flow equalization plate are disposed inside the first end of the second tank, and a third flow equalization plate and a fourth flow equalization plate are disposed inside the second end of the second tank, with the molecular sieve particles located between the second flow equalization plate and the fourth flow equalization plate. The first flow hole on the first flow equalization plate is staggered from the second flow hole on the second flow equalization plate, and the first flow equalization plate and the second flow equalization plate form a seal at the first end of the second tank by being in contact with each other; the third flow hole on the third flow equalization plate is staggered from the fourth flow hole on the fourth flow equalization plate, and the third flow equalization plate and the fourth flow equalization plate form a seal at the second end of the second tank by being in contact with each other.

[0008] Preferably, the second end panel is fixedly connected to an elastic connecting rod, the end of which passes through the third flow equalization plate and is connected to the fourth flow equalization plate.

[0009] Preferably, the elastic connecting rod includes an elastic body and an inner rod body and an outer cylinder body arranged coaxially. The outer cylinder body is sleeved on the outside of the inner rod body and forms an axial sliding connection with the inner rod body. The inner rod body is fixedly connected to the second end panel, and the outer cylinder body is fixedly connected to the fourth flow equalization plate. The inner rod body and the fourth flow equalization plate are connected through the elastic body, and the third flow equalization plate is movably sleeved on the outside of the outer cylinder body.

[0010] Preferably, a third sealing plate is provided at the bottom of the first tank, and the first end of the second tank and the lower end of the fourth sealing plate are respectively connected to the third sealing plate. The third sealing plate is used to form a seal at the bottom of the isolation cylinder.

[0011] Preferably, a second sealing plate is provided on the top of the first tank, and the second end of the second tank and the upper end of the fourth sealing plate are respectively connected to the second sealing plate. The second sealing plate is used to form a seal on the top of the isolation cylinder.

[0012] Preferably, the interior of the first tank is provided with a first functional cylinder for driving the first sealing plate, and the axis of the first functional cylinder is perpendicular to the axis of the first tank.

[0013] Preferably, the inner space is provided with a column, and the first sealing plate inside the inner space is fixedly connected to the column through a corresponding first functional cylinder, and the first sealing plate inside the outer space is fixedly connected to the inner wall of the first tank through a corresponding first functional cylinder.

[0014] Preferably, this multi-functional intelligent control matrix oxygen generator further includes a first dust removal component, a second dust removal component, and a third dust removal component, which are connected in sequence. The exhaust end of the third dust removal component is connected to the air inlet end of the air compressor, and the exhaust end of the air compressor is connected to the air inlet end of the first tank or the air inlet end of the second tank.

[0015] The beneficial effects of this invention are: 1. This matrix oxygen generator is equipped with a multi-stage gradient filtration structure at the air inlet of the adsorption tank, which can intercept dust in the mine air, remove dust from the gas entering the adsorption tank, ensure the cleanliness of the intake air, reduce dust clogging of the molecular sieve filter, and ensure oxygen production efficiency.

[0016] 2. This matrix oxygen generator is composed of multiple axial flow adsorption tanks (second tanks). Two adsorption tanks work alternately as a group to achieve continuous axial flow oxygen production. The adsorption tanks are arranged in a ring matrix. After sealing the gaps between the adsorption tanks, an isolation cylinder is formed. The adsorption tanks are provided with perforated plates inside and outside the isolation cylinder. The perforated plates can realize gas flow between the inside (inner space) and the outside (outer space) of the isolation cylinder, forming radial flow of gas inside the adsorption tank. This matrix oxygen generator can realize axial flow oxygen production mode and radial flow oxygen production mode of axial flow adsorption tanks to meet different oxygen production application scenarios.

[0017] 3. The first exhaust pipe of the adsorption tank (second tank) of this matrix oxygen generator is connected to the interior (inner space) of the isolation cylinder, so that some oxygen can be purged and desorbed through radial flow. The flow area of ​​the purging gas is increased and the flow path is shortened, which improves the nitrogen desorption efficiency and reduces the pressure drop of the purging gas, thereby reducing the probability of molecular sieve particle breakage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the airflow connection structure of this matrix oxygen concentrator; Figure 2 This is a schematic diagram of the external structure of the first tank of this matrix oxygen generator; Figure 3 This is a schematic diagram of the axial cross-section of the first tank of this matrix oxygen generator; Figure 4 For this matrix oxygen concentrator Figure 3 Schematic diagram of the cross section at point AA in the first tank; Figure 5 This is a schematic diagram of the internal structure of the first tank of this matrix oxygen generator; Figure 6 This is a schematic diagram of the structure of the second tank of this matrix oxygen generator; Figure 7 This is a schematic diagram of the structure of this matrix oxygen concentrator during axial flow oxygen production (first desorption mode); Figure 8 This is a schematic diagram of the structure of this matrix oxygen generator during axial flow oxygen production (second desorption mode); Figure 9 This is a schematic diagram of the radial flow oxygen generation process of this matrix oxygen generator.

[0019] In the diagram: 1. First tank; 2. Second tank; 3. First sealing plate; 4. Second sealing plate; 5. Third sealing plate; 6. Fourth sealing plate; 7. Column; 8. External space; 9. Internal space; 10. Base; 11. First exhaust pipe; 12. First air inlet pipe; 13. Balance pipe; 14. Second air inlet pipe; 15. Second exhaust pipe; 16. Air compressor; 17. Oxygen storage tank; 18. First dust collector; 19. Second dust collector; 20. Third dust collector; 101. Top plate; 102. Bottom plate; 21. First end panel; 22. First flow equalization plate; 23. Second flow equalization plate; 24. Second end panel; 25. Third flow equalization plate; 26. Fourth flow equalization plate; 27. Elastic connecting rod; 28. Perforated plate; 31. First functional cylinder; 111. First valve body; 121. Second valve body; 131. Third valve body; 141. Fourth valve body; 142. Fifth valve body; 221. Second functional cylinder; 251. Third functional cylinder; 271. Inner rod body; 272. Outer cylinder body; 273. Elastic body. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] This embodiment proposes a multifunctional intelligent control matrix oxygen generator, referring to... Figure 1 The matrix-type oxygen generator includes a first dust removal component 18, a second dust removal component 19, and a third dust removal component 20, an air compressor 16, a first tank 1, and an oxygen storage tank 17. The first dust removal component 18, the second dust removal component 19, and the third dust removal component 20 are combined to form a dust removal structure, which is used to intercept dust in the mine gas and remove dust from the gas entering the adsorption tank. The air compressor 16 can compress the dust-removed gas to obtain compressed air. The first tank 1 is used to separate nitrogen and oxygen in the compressed air to realize oxygen production. The produced oxygen can be stored inside the oxygen storage tank 17.

[0022] In this embodiment, the first dust collector 18, the second dust collector 19, and the third dust collector 20 are connected in sequence. The air inlet of the first dust collector 18 is connected to the outside air, and the exhaust end of the third dust collector 20 is connected to the air inlet of the air compressor 16. The first dust collector 18 is a cyclone separator used to remove large dust particles from the mine gas; the second dust collector 19 is a bag filter, mainly intercepting PM10-PM2.5 dust particles; and the third dust collector 20 is an electrostatic precipitator, removing submicron-sized particles. After passing through the first dust collector 18, the second dust collector 19, and the third dust collector 20 in sequence, the mine gas is compressed by the air compressor 16. The three dust collectors form a multi-stage gradient filtration of the dust in the mine gas, ensuring the cleanliness of the air entering the adsorption tank.

[0023] Reference Figure 2 and Figure 3 The first tank 1 is fixedly installed on the base 10. A bottom plate 102 is provided at the bottom of the first tank 1 to seal the bottom. A top plate 101 is provided at the top of the first tank 1 to seal the top. Multiple second tanks 2 are arranged inside the first tank 1. Both the first tank 1 and the second tanks 2 are cylindrical. The axis of the second tanks 2 is parallel to the axis of the first tank 1. The multiple second tanks 2 are evenly distributed around the axis of the first tank 1 inside the first tank 1. The number of second tanks 2 can be set according to requirements, such as four, six, or eight. (Reference) Figure 4 and Figure 5 In this embodiment, there are four second tanks 2, which are arranged in a ring around the inside of the first tank 1.

[0024] The second tank 2 mentioned above is an adsorption tank. The second tank 2 contains molecular sieve particles, which are used to separate nitrogen and oxygen from compressed air. The molecular sieve particles adsorb nitrogen to obtain oxygen. (Reference) Figure 3 and Figure 6 The second tank 2 has a first air inlet pipe 12 at its first end. The air inlet end of the first air inlet pipe 12 is used to connect to the exhaust end of the air compressor 16 or to external air. The first air inlet pipe 12 is used to introduce compressed air into the second tank 2 or to purge and expel desorbed gas. The second end of the second tank 2 has a first exhaust pipe 11. The exhaust end of the first exhaust pipe 11 is used to connect to the air inlet end of the oxygen storage tank 17. The first exhaust pipe 11 is used to discharge oxygen from the second tank 2, and the oxygen can be stored in the oxygen storage tank 17.

[0025] For details, please refer to Figure 3 and Figure 6 The second tank 2 has a first end panel 21 at its first end, which is used to seal the first end of the second tank 2. A first air inlet pipe 12 extends from the outside of the first tank 1 to the first end panel 21 and is connected to the first end panel 21. The second end of the second tank 2 has a second end panel 24 at its second end, which is used to seal the second end of the second tank 2. A first exhaust pipe 11 extends from the outside of the first tank 1 to the second end panel 24 and is connected to the second end panel 24.

[0026] Furthermore, a first flow equalization plate 22 and a second flow equalization plate 23 are provided inside the first end of the second tank body 2, and a third flow equalization plate 25 and a fourth flow equalization plate 26 are provided inside the second end of the second tank body 2. The first flow equalization plate 22, the second flow equalization plate 23, the third flow equalization plate 25, and the fourth flow equalization plate 26 are arranged in parallel and are perpendicular to the axis of the second tank body 2. The first flow equalization plate 22, the second flow equalization plate 23, the third flow equalization plate 25, and the fourth flow equalization plate 26 are respectively provided with flow holes for gas flow. Gas can be dispersed by passing through the first flow equalization plate 22, the second flow equalization plate 23, the third flow equalization plate 25, and the fourth flow equalization plate 26, thereby achieving the function of uniform airflow distribution.

[0027] The molecular sieve particles are located between the second flow equalization plate 23 and the fourth flow equalization plate 26. The second flow equalization plate 23 is fixedly connected to the inner wall of the second tank 2. An elastic connecting rod 27 is fixedly installed on the second end panel 24, and the elastic connecting rod 27 passes through the third flow equalization plate 25 and connects to the fourth flow equalization plate 26. The second end panel 24 and the second tank 2 are detachably connected, for example, by a threaded connection or by a snap-fit ​​connection. Separation of the second end panel 24 from the second tank 2 allows the second tank 2 to be opened, facilitating the replacement of the molecular sieve particles.

[0028] Furthermore, such as Figure 7As shown, the elastic connecting rod 27 includes an inner rod body 271, an outer cylinder body 272, and an elastic body 273. The inner rod body 271 and the outer cylinder body 272 are coaxially arranged. The outer cylinder body 272 is sleeved on the outside of the inner rod body 271 and is axially slidably connected to the inner rod body 271. The inner rod body 271 is fixedly connected to the second end panel 24, and the outer cylinder body 272 is fixedly connected to the fourth flow equalization plate 26. The inner rod body 271 and the fourth flow equalization plate 26 are connected through the elastic body 273. The elastic body 273 is a spring. When the second end panel 24 is connected to the second tank 2, the elastic connecting rod 27 is in a compressed state. The extension tendency of the elastic connecting rod 27 causes the fourth flow equalization plate 26 to apply pressure to the molecular sieve particles. The fourth flow equalization plate 26 is used to restrict the positional movement of the molecular sieve particles and maintain the aggregation state of the molecular sieve particles inside the second tank 2.

[0029] The two ends of the second tank 2 are respectively provided with sealing structures, which are used to form an open state or a sealed state at the ends of the second tank 2. Among them, the first flow equalization plate 22 and the second flow equalization plate 23 form the lower sealing structure of the first end of the second tank 2, and the third flow equalization plate 25 and the fourth flow equalization plate 26 form the upper sealing structure of the second end of the second tank 2.

[0030] Specifically, the first flow equalization plate 22 is provided with a first flow hole, and the second flow equalization plate 23 is provided with a second flow hole. The first flow hole on the first flow equalization plate 22 and the second flow hole on the second flow equalization plate 23 are offset. The first flow equalization plate 22 is axially slidably connected to the second tank body 2, and a sliding sealing ring is provided between the first flow equalization plate 22 and the inner wall of the second tank body 2. The bottom plate 102 of the first tank body 1 is provided with a second functional cylinder 221, and the axis of the second functional cylinder 221 is parallel to the axis of the second tank body 2. The working end of the second functional cylinder 221 is fixedly connected to a first sliding rod, which extends into the interior of the second tank body 2 and is fixedly connected to the first flow equalization plate 22. The second functional cylinder 221 is used to drive the first flow equalization plate 22 to move axially, and the first flow equalization plate 22 can be attached to or separated from the second flow equalization plate 23 by axial movement. When the first flow equalization plate 22 is in contact with the second flow equalization plate 23, the first end of the second tank 2 is in a sealed state; when the first flow equalization plate 22 is separated from the second flow equalization plate 23, the first end of the second tank 2 is in an open state.

[0031] Similarly, the third flow equalization plate 25 is provided with a third flow hole, and the fourth flow equalization plate 26 is provided with a fourth flow hole. The third flow hole on the third flow equalization plate 25 and the fourth flow hole on the fourth flow equalization plate 26 are staggered. The third flow equalization plate 25 is annular and is axially slidably connected to the second tank 2. A sliding sealing ring is provided between the third flow equalization plate 25 and the inner wall of the second tank 2. At the same time, the third flow equalization plate 25 is movably sleeved on the outside of the outer cylinder 272, and a sliding sealing ring is also provided between the third flow equalization plate 25 and the outer cylinder 272.

[0032] Furthermore, a third functional cylinder 251 is provided on the top plate 101 of the first tank 1, and the axis of the third functional cylinder 251 is parallel to the axis of the second tank 2. A second sliding rod is fixedly connected to the working end of the third functional cylinder 251. The second sliding rod extends into the interior of the second tank 2 and is fixedly connected to the third flow equalization plate 25. The third functional cylinder 251 is used to drive the third flow equalization plate 25 to move axially. The third flow equalization plate 25 can be attached to or separated from the fourth flow equalization plate 26 through axial movement. When the third flow equalization plate 25 is attached to the fourth flow equalization plate 26, the second end of the second tank 2 is in a sealed state; when the third flow equalization plate 25 is separated from the fourth flow equalization plate 26, the second end of the second tank 2 is in an open state.

[0033] Further reference Figure 4 and Figure 5 A fourth sealing plate 6 is provided between adjacent second tank bodies 2. The fourth sealing plate 6 can be an arc-shaped plate. The second tank body 2 and the fourth sealing plate 6 together form an isolation cylinder. (Reference) Figure 3 A third sealing plate 5 is provided on the bottom plate 102 of the first tank 1. The first end of the second tank 2 and the lower end of the fourth sealing plate 6 are respectively connected to the third sealing plate 5. The third sealing plate 5 is used to form a seal at the bottom of the isolation cylinder. A second sealing plate 4 is provided on the top plate 101 of the first tank 1. The second end of the second tank 2 and the upper end of the fourth sealing plate 6 are respectively connected to the second sealing plate 4. The second sealing plate 4 is used to form a seal at the top of the isolation cylinder. An inner space 9 is formed inside the isolation cylinder, and an outer space 8 is formed between the isolation cylinder and the first tank 1.

[0034] refer to Figure 3 and Figure 6 Perforated plates 28 are respectively provided on both sides of the second tank body 2. The perforated plates 28 extend from the second flow equalization plate 23 to the fourth flow equalization plate 26, and are located between the second flow equalization plate 23 and the fourth flow equalization plate 26. One perforated plate 28 is located in the outer space 8, and the other perforated plate 28 is located in the inner space 9. The perforated plates 28 are provided with through holes for airflow and are used to connect the outer space 8 and the inner space 9. In this embodiment, the area of ​​the perforated plate 28 is larger than the radial area of ​​the second tank body 2.

[0035] The first tank 1 is equipped with a first sealing plate 3 inside, and the number and position of the first sealing plates 3 correspond to the position and number of the perforated plate 28. The first sealing plates 3 are located on the outer wall of the perforated plate 28 and are used to seal the perforated plate 28.

[0036] Specifically, a first functional cylinder 31 is installed inside the first tank body 1, and the axis of the first functional cylinder 31 is perpendicular to the axis of the first tank body 1. A column 7 is installed in the inner space 9, and the bottom of the column 7 is fixedly connected to the first tank body 1. A first sealing plate 3 inside the inner space 9 is fixedly connected to the column 7 via a corresponding first functional cylinder 31, and a first sealing plate 3 inside the outer space 8 is fixedly connected to the inner wall of the first tank body 1 via a corresponding first functional cylinder 31. The first functional cylinder 31 is used to drive the first sealing plate 3 to move, causing the first sealing plate 3 to separate from or adhere to the perforated plate 28. When the first sealing plate 3 is adhered to the perforated plate 28, the perforated plate 28 is in a closed state; when the first sealing plate 3 is separated from the perforated plate 28, the perforated plate 28 is in an open state.

[0037] When the two perforated plates 28 are open, the two ends of the second tank 2 are sealed, the inner space 9 and the outer space 8 are connected, and the airflow flows from the inner space 9 through the second tank 2 to the outer space 8 to form a radial flow; when the two perforated plates 28 are closed, the inner space 9 and the outer space 8 are isolated, and the airflow flows from the first end to the second end of the second tank 2 to form an axial flow.

[0038] refer to Figure 1 A second air inlet pipe 14 is provided on the top plate 101 of the first tank body 1. The second air inlet pipe 14 is used to connect to the inner space 9. The air inlet end of the second air inlet pipe 14 is connected to the exhaust end of the air compressor 16, allowing gas to enter the interior of the inner space 9. A second exhaust pipe 15 is provided on the bottom plate 102 of the first tank body 1. The second exhaust pipe 15 is used to connect to the outer space 8, allowing gas to be discharged from the outer space 8. The exhaust end of the second exhaust pipe 15 is connected to an external air or oxygen storage tank 17.

[0039] The first exhaust pipe 11 of the second tank 2 is connected to the second intake pipe 14 through the balance pipe 13. Part of the oxygen obtained by the second tank 2 can enter the inner space 9 through the balance pipe 13 and the second intake pipe 14. This part of the oxygen can enter the interior of the second tank 2 through the perforated plate 28 of the inner space 9, and then flow out from the perforated plate 28 of the outer space 8, performing radial flow purging and desorption on the molecular sieve particles inside the second tank 2. The purging gas is discharged from the second exhaust pipe 15.

[0040] In this embodiment, a first valve body 111 is disposed on the first exhaust pipe 11, a second valve body 121 is disposed on the first intake pipe 12, a third valve body 131 is disposed on the balance pipe 13, a fourth valve body 141 and a fifth valve body 142 are disposed on the second intake pipe 14, and a sixth valve body is disposed on the second exhaust pipe 15. The first valve body 111, the second valve body 121, the third valve body 131, the fourth valve body 141, the fifth valve body 142, and the sixth valve body are all electrically controlled valves, used to control the opening and closing of the first exhaust pipe 11, the first intake pipe 12, the balance pipe 13, the second intake pipe 14, and the second exhaust pipe 15 respectively, thereby realizing the gas path control of the oxygen generator.

[0041] The connection point between the balance pipe 13 and the second intake pipe 14 is the junction point. The fourth valve body 141 is located on the communication path between the junction point and the air compressor 16, and the fifth valve body 142 is located on the communication path between the junction point and the inner space 9.

[0042] In this embodiment, the four second tanks 2 inside the first tank 1 of the oxygen generator are arranged in a circular matrix, and the four second tanks 2 can work in combination. Two second tanks 2 form an oxygen generation group, and the two second tanks 2 alternately perform adsorption and desorption operations, which can realize continuous axial flow oxygen generation. The two oxygen generation groups can work together or independently to meet different oxygen generation needs.

[0043] Furthermore, after the gap between the second tanks 2 is sealed by the fourth sealing plate 6, an isolation cylinder can be obtained. The second tank 2 is provided with perforated plates 28 inside and outside the isolation cylinder. The perforated plates 28 form gas flow between the inside (inner space 9) and the outside (outer space 8) of the isolation cylinder, forming radial flow of gas inside the second tank 2. This radial flow can be used to realize purging desorption and radial flow oxygen production.

[0044] refer to Figure 7 The oxygen generator operates in an axial flow mode, with two second tanks 2 forming one oxygen generation group. The adsorption and desorption processes of the two second tanks 2 alternate. At this time, the first sealing plate 3 is in contact with the perforated plate 28, which is in a closed state. The first flow equalization plate 22 is separated from the second flow equalization plate 23, and the first end of the second tank 2 is in an open state. The third flow equalization plate 25 is separated from the fourth flow equalization plate 26, and the second end of the second tank 2 is in an open state.

[0045] First, the first valve body 111 and the second valve body 121 are in the open state. Compressed air enters the second tank 2 from the first air inlet pipe 12. The molecular sieve particles inside the second tank 2 adsorb nitrogen, realizing the separation of nitrogen and oxygen. Oxygen is discharged from the first exhaust pipe 11 and enters the oxygen storage tank 17.

[0046] When the oxygen concentrator is in axial flow oxygen production mode, it has two desorption modes. The first desorption mode is the conventional desorption mode, see reference... Figure 7 When the other second tank 2 needs to be purged and desorbed, the third valve 131 of the balance pipe 13 corresponding to the two second tanks 2 is opened, and the fourth valve 141 and the fifth valve 142 are closed. The first valve 111 and the second valve 121 of the other second tank 2 are in the open state. Part of the oxygen inside the first air inlet pipe 12 enters the other second tank 2 from the balance pipe 13 and the first exhaust pipe 11. This part of the oxygen purges and desorbs the molecular sieve particles inside the second tank 2. The purging gas can be discharged from the first air inlet pipe 12 into the outside air to achieve axial flow purging and desorption.

[0047] The second desorption mode is a rapid desorption mode, see reference. Figure 8 When another second tank 2 needs to be purged and desorbed, the fourth valve 141 and the third valve 131 corresponding to the second tank 2 being desorbed are closed, while the fifth valve 142 and the sixth valve are opened. Part of the oxygen inside the first inlet pipe 12 enters the inner space 9 through the balance pipe 13 and the second inlet pipe 14. This oxygen can then enter the second tank 2 through the perforated plate 28 of the inner space 9 and flow out through the perforated plate 28 of the outer space 8, purging and desorbing the molecular sieve particles inside the second tank 2. The purging gas can be discharged from the second exhaust pipe 15 into the outside air, achieving radial flow purging and desorption. In this embodiment, the area of ​​the perforated plate 28 is larger than the inner diameter of the second tank 2, resulting in a larger radial flow area. This reduces the pressure of the purging gas flow, decreases the probability of molecular sieve particle breakage, and lowers energy consumption. Simultaneously, the radial dimension of the second tank 2 is smaller than its axial dimension, shortening the flow path of the purging gas inside the second tank 2, which increases the desorption speed and accelerates the alternating oxygen production cycle.

[0048] refer to Figure 9 The oxygen generator operates in radial flow mode. At this time, the first sealing plate 3 is separated from the perforated plate 28, which is in the open state; the first flow equalization plate 22 is in contact with the second flow equalization plate 23, and the third flow equalization plate 25 is in contact with the fourth flow equalization plate 26; both ends of the second tank 2 are sealed; the first valve body 111, the second valve body 121, and the third valve body 131 are all closed, while the fourth valve body 141, the fifth valve body 142, and the sixth valve body are open. Compressed air enters the inner space 9 of the isolation cylinder from the fourth valve body 141, and then enters the interior of the second tank 2 from the perforated plate 28 of the inner space 9. The molecular sieve particles inside the second tank 2 adsorb nitrogen, achieving nitrogen and oxygen separation. Oxygen flows out from the perforated plate 28 of the outer space 8 and into the outer space 8. Oxygen can also be discharged from the second exhaust pipe 15 into the oxygen storage tank 17. In this embodiment, compared with the axial flow oxygen production state, the radial flow oxygen production state has a larger gas flow area and a shorter flow path, which can reduce the flow pressure and energy consumption during oxygen blowing, reduce the probability of molecular sieve particle breakage, and at the same time, the shorter gas flow path is suitable for frequent switching of adsorption / desorption cycles, resulting in better system dynamic performance.

[0049] It is worth noting that in this embodiment, the number of the first tank 1 of the matrix oxygen generator is two ( Figure 1 (The other first tank 1 is not shown). When the oxygen generator is in radial flow oxygen production mode, the two first tanks 1 can alternately perform adsorption or desorption to achieve continuous oxygen production.

[0050] In this embodiment, the oxygen storage tank 17 of the matrix oxygen generator can be connected to the mine's ventilation system or a mine rescue capsule. The matrix oxygen generator has different oxygen production states, and workers can select the appropriate state according to their oxygen production needs. The mine rescue capsule is mainly used for medical oxygen production, requiring high oxygen concentration. Therefore, the matrix oxygen generator in this embodiment adopts an axial flow oxygen production state. The axial flow of compressed gas prolongs the contact time between the gas and the molecular sieve particles, improving the adsorption or desorption effect and obtaining high-concentration oxygen. The ventilation system is used to obtain a suitable amount of oxygen and improve the oxygen content of the gas inside the mine. Since the oxygen concentration requirement is not high, the matrix oxygen generator in this embodiment adopts a radial flow oxygen production state. The radial flow of compressed gas accelerates gas flow efficiency and reduces the flow pressure and energy consumption during oxygen production.

[0051] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multifunctional intelligent control matrix oxygen generator, comprising at least two second tanks, the interior of each second tank containing molecular sieve particles, a first air inlet pipe at a first end of each second tank, and a first exhaust pipe at a second end, characterized in that, It also includes at least one first tank, and a plurality of second tanks are evenly arranged around the axis of the first tank inside the first tank. A fourth sealing plate is respectively provided between adjacent second tanks. The second tanks and the fourth sealing plates enclose and form an isolation cylinder. The isolation cylinder divides the first tank into an inner space and an outer space. The first tank is provided with a second air inlet pipe for air intake in the inner space and a second exhaust pipe for air exhaust in the outer space. The first exhaust pipe of the second tank is connected to the second air inlet pipe through a balance pipe. The two ends of the second tank are respectively provided with sealing structures to form an open state or a sealed state of the end of the second tank. A perforated plate and a first sealing plate are respectively provided on both sides of the second tank. The perforated plate is located in the outer space and the inner space respectively. The area of ​​the perforated plate is larger than the radial area of ​​the second tank. The first sealing plate forms an open state or a closed state of the perforated plate by separating from or adhering to the perforated plate. When both perforated plates are open and the end of the second tank is sealed, the inner space and the outer space are connected, and the airflow flows from the inner space through the second tank to the outer space to form a radial flow; when both perforated plates are closed, the inner space and the outer space are isolated, and the airflow flows from the first end to the second end of the second tank to form an axial flow.

2. The multifunctional intelligent control matrix oxygen generator according to claim 1, characterized in that, The second tank has a first flow equalization plate and a second flow equalization plate inside its first end, and a third flow equalization plate and a fourth flow equalization plate inside its second end, with molecular sieve particles located between the second and fourth flow equalization plates; the first flow hole on the first flow equalization plate is offset from the second flow hole on the second flow equalization plate, and the first and second flow equalization plates are attached to each other to form a seal at the first end of the second tank; the third flow hole on the third flow equalization plate is offset from the fourth flow hole on the fourth flow equalization plate, and the third and fourth flow equalization plates are attached to each other to form a seal at the second end of the second tank.

3. The multifunctional intelligent control matrix oxygen generator according to claim 2, characterized in that, The second end of the second tank is provided with a second end panel, and an elastic connecting rod is fixedly connected to the second end panel. The end of the elastic connecting rod passes through the third flow equalization plate and is connected to the fourth flow equalization plate.

4. The multifunctional intelligent control matrix oxygen generator according to claim 3, characterized in that, The elastic connecting rod includes an elastic body and an inner rod body and an outer cylinder body arranged coaxially. The outer cylinder body is sleeved on the outside of the inner rod body and forms an axial sliding connection with the inner rod body. The inner rod body is fixedly connected to the second end panel, and the outer cylinder body is fixedly connected to the fourth flow equalization plate. The inner rod body and the fourth flow equalization plate are connected through the elastic body, and the third flow equalization plate is movably sleeved on the outside of the outer cylinder body.

5. The multifunctional intelligent control matrix oxygen generator according to any one of claims 1-4, characterized in that, The bottom of the first tank is provided with a third sealing plate, and the first end of the second tank and the lower end of the fourth sealing plate are respectively connected to the third sealing plate. The third sealing plate is used to form a seal at the bottom of the isolation cylinder.

6. The multifunctional intelligent control matrix oxygen generator according to claim 5, characterized in that, The top of the first tank is provided with a second sealing plate, and the second end of the second tank and the upper end of the fourth sealing plate are respectively connected to the second sealing plate. The second sealing plate is used to form a seal on the top of the isolation cylinder.

7. The multifunctional intelligent control matrix oxygen generator according to any one of claims 1-4, characterized in that, The first tank body is equipped with a first functional cylinder for driving the first sealing plate, and the axis of the first functional cylinder is perpendicular to the axis of the first tank body.

8. The multifunctional intelligent control matrix oxygen generator according to claim 7, characterized in that, The inner space is provided with a column, and the first sealing plate inside the inner space is fixedly connected to the column through a corresponding first functional cylinder. The first sealing plate inside the outer space is fixedly connected to the inner wall of the first tank through a corresponding first functional cylinder.

9. The multifunctional intelligent control matrix oxygen generator according to any one of claims 1-4, characterized in that, It also includes a first dust removal component, a second dust removal component, and a third dust removal component, which are connected in sequence. The exhaust end of the third dust removal component is connected to the air inlet end of the air compressor, and the exhaust end of the air compressor is connected to the air inlet end of the first tank or the air inlet end of the second tank.

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