Low-concentration oxygen preparation device based on porous medium adsorption

Abstract

The invention discloses a low-concentration oxygen preparation device based on porous medium adsorption, and belongs to the technical field of oxygen preparation, the low-concentration oxygen preparation device comprises a machine body, a conveying channel is arranged in the middle of the machine body, a water storage tank is arranged outside the machine body, a pump machine is arranged in the water storage tank, and the pump machine is communicated with the conveying channel through a pipeline; an electrolysis device is arranged in the inner wall, away from the conveying channel, of the machine body, the conveying channel is communicated with the electrolysis device, and the electrolysis device comprises an electrolytic tank arranged in the machine body; a worker controls a pump machine in a water storage tank to extract electrolyzed water through a controller, the electrolyzed water is immediately conveyed into a conveying channel through a pipeline, then the electrolyzed water is conveyed into an electrolytic bath through the conveying channel, the controller immediately controls an electrolysis device to be started, the electrolysis device electrolyzes the electrolyzed water immediately, the electrolyzed water generates hydrogen and oxygen, and the hydrogen and the oxygen are stored in a storage tank. And finally, the hydrogen and the oxygen are respectively conveyed out, so that the oxygen production by electrolyzing the water is realized, and the oxygen production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen production, and in particular to a low-concentration oxygen production device based on porous medium adsorption. Background Art

[0002] With the continuous advancement of modern industrialization, low-concentration oxygen (low oxygen concentration) is increasingly used in many fields, such as metallurgy, chemical industry, environmental protection, medical and agricultural industries; the preparation technology of low-concentration oxygen has therefore received widespread attention; traditional oxygen preparation methods mostly rely on air separation technology, such as cryogenic liquefaction, adsorption and membrane separation, but these methods usually require high energy consumption and complex equipment configuration, and have low control accuracy, which makes it difficult to meet the requirements of some special applications for oxygen concentration accuracy and stability; in the civilian field, when oxygen production is required, electrolyte oxygen production, i.e. electrolysis of water, is often used, which is connected to the electrode through direct current, and the electrode is inserted into the liquid or liquid solution, and a small amount of hydrogen ions and oxygen ions are ionized in the liquid. At the cathode, the hydrogen ions receive electrons and then precipitate hydrogen, and at the positive gas, the oxygen atoms lose electrons and then precipitate oxygen, and the hydrogen produced at the cathode is collected to achieve oxygen production; The existing oxygen production method usually uses electrode rods to extend into the electrolytic cell in a large container to electrolyze the electrolyte. In this process, the reaction time of electrolytic oxygen production in the large container is long, the efficiency is too slow, and long-term operation may cause the sealing performance of the electrolytic cell to deteriorate, which in turn leads to safety problems. Summary of the invention

[0003] The purpose of the present invention is to provide a low-concentration oxygen production device based on porous medium adsorption to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: A low-concentration oxygen production device based on porous medium adsorption comprises: a body, a delivery channel is arranged in the middle of the body, a water storage tank is arranged outside the body, a pump is arranged in the water storage tank, the pump is connected to the delivery channel through a pipeline, an electrolysis device is arranged in the inner wall of the body away from the delivery channel, the delivery channel is connected to the electrolysis device, the electrolysis device comprises: an electrolysis cell, the electrolysis cell is arranged in the body; The staff uses the controller to control the pump in the water tank to start, and the pump immediately extracts the electrolyzed water in the water tank. The electrolyzed water is then transported to the delivery channel through the pipeline, and then transported to the electrolyzer through the delivery channel. The controller immediately controls the electrolysis device to start, and the electrolysis device immediately electrolyzes the electrolyzed water. The electrolyzed water generates hydrogen and oxygen, and finally the hydrogen and oxygen are transported out separately, thereby realizing oxygen production by electrolyzing water, thereby improving the efficiency of oxygen production.

[0005] Preferably, a plurality of electrolytic cells are provided, and the plurality of electrolytic cells are arranged around the axis of the conveying path, the diameters at both ends of the electrolytic cell are larger than the diameter in the middle of the electrolytic cell, a rotating shaft is provided in the electrolytic cell, a motor cavity is provided at one end of the body, a motor is provided in the motor cavity, the rotating shaft passes through the body to be connected to a drive shaft in the motor, a partition is provided in the middle of the electrolytic cell, the rotating shaft passes through the partition, and the two ends of the electrolytic cell are separated by providing the partition to prevent hydrogen and oxygen from mixing in the electrolytic cell.

[0006] Preferably, an electrode sheet is provided on the surface of the rotating shaft, and the electrode sheet consists of a left spiral plate and a right spiral plate, and the left spiral plate and the right spiral plate are respectively arranged at two ends of the rotating shaft, and the rotation directions of the left spiral plate and the right spiral plate are opposite, the left spiral plate is the negative electrode, and the right spiral plate is the positive electrode, and the diameter of one end of the left spiral plate and the right spiral plate close to the center of the electrolytic cell is smaller than the diameter of one end of the left spiral plate and the right spiral plate away from the electrolytic cell.

[0007] Preferably, a hydrogen chamber is provided at one end of the electrolyzer away from the motor chamber, an oxygen chamber is provided at one end of the electrolyzer close to the motor chamber, gas outlets are symmetrically provided at both ends of the electrolyzer, one end of the electrolyzer is connected to the hydrogen chamber through the gas outlet, and the other end of the electrolyzer is connected to the oxygen chamber through the gas outlet, and delivery ports are provided at the tops of the hydrogen chamber and the oxygen chamber.

[0008] Preferably, a water outlet is provided on one side of the electrolytic cell close to the conveying channel, the water outlet connects the electrolytic cell and the conveying channel, a blocking block is provided in the water outlet, a spring is provided between the blocking block and the water outlet, and the blocking block is slidably connected to the water outlet through the spring; When the electrolyzed water enters the conveying channel, the blocking block moves to the side away from the water outlet, so that the blocking block loses its blocking effect on the water outlet, and the water outlet is connected to the conveying channel. Since the water pressure in the conveying channel is greater than the water pressure in the electrolytic cell, the electrolyzed water in the conveying channel immediately enters the water outlet, and is then transported to the electrolytic cell through the water outlet. During the electrolyte transportation process, the electrode sheet does not electrolyze the electrolyte. Each time the electrolyte is transported to the electrolytic cell, the electrolytic cell is filled. Since the diameter at both ends of the electrolytic cell is greater than the diameter in the middle of the electrolytic cell, the liquid level height at both ends of the electrolytic cell is The liquid level in the middle of the electrolytic cell is the same, so that there is a vacuum area at the top of the electrolytic cell near the gas outlet. When the electrolyzed water enters the electrolytic cell, the controller controls the electrode sheet to be energized, and the electrode sheet immediately electrolyzes the electrolyzed water in the electrolytic cell. Since the left spiral plate is the negative electrode and the right spiral plate is the positive electrode, hydrogen is generated on the surface of the left spiral plate, and oxygen is generated on the surface of the right spiral plate. By setting the electrode sheet in a spiral shape, the contact area between the electrode sheet and the electrolyzed water is increased, thereby increasing the conductive area, thereby shortening the water electrolysis time, and thus improving the efficiency of water electrolysis. As the guide block rotates under the action of the impeller, and the guide ball moves to the end along the guide groove in the guide block, the guide ball slides out of the guide block. At this time, the blocking block loses its driving effect. The blocking block then moves to the side close to the water outlet under the action of the spring, so that the blocking block blocks the water outlet again, so that the electrolytic cell forms a closed space. Several electrode sheets simultaneously electrolyze electrolytic water in several electrolytic cells, thereby improving the efficiency of electrolytic oxygen production. Due to the closed space formed by the electrolytic cell, the capacity of electrolytic water stored in the electrolytic cell is small, which further improves the efficiency of electrolytic oxygen production, thereby improving the quality of electrolytic oxygen production. Electrolysis in a closed space avoids the leakage of generated hydrogen and oxygen, which causes safety accidents, thereby improving the safety of the equipment, thereby improving the sealing performance of the electrolytic cell; During the electrolysis process, the controller controls the motor in the motor cavity to start, and the drive shaft in the motor drives the rotating shaft to rotate. During the rotation of the rotating shaft, the rotating shaft drives the left spiral plate and the right spiral plate to rotate. Since the left spiral plate and the right spiral plate rotate in opposite directions, hydrogen is transported to the side close to the hydrogen cavity under the driving action of the left spiral plate, and oxygen is transported to the side close to the oxygen cavity under the driving action of the right spiral plate, thereby realizing the separate transportation of hydrogen and oxygen, thereby avoiding the mixing of hydrogen and oxygen, thereby preventing safety accidents, and further improving the safety of the equipment; Since the diameters at both ends of the electrolytic cell are larger than the diameter in the middle of the electrolytic cell, and the diameters of the ends of the left and right spiral plates close to the center of the electrolytic cell are smaller than the diameters of the ends of the left and right spiral plates away from the electrolytic cell, the electrolytic cell diffuses from the center to both ends, so that a slope is formed on the side wall of the electrolytic cell, so that hydrogen and oxygen are respectively transported to the two ends of the electrolytic cell, and hydrogen is then transported to the hydrogen cavity through the gas outlet, and oxygen is transported to the oxygen cavity through the gas outlet, and finally hydrogen and oxygen are output and stored from the transport ports set at the tops of the hydrogen cavity and the oxygen cavity, respectively.

[0009] Preferably, two bell mouths are provided in the conveying path, the two bell mouths are symmetrically arranged in the middle of the conveying path, an impeller is provided between the two bell mouths, and the impeller is rotatably connected to the bell mouths.

[0010] Preferably, a plurality of blades are provided on the inner wall of the impeller, and the plurality of blades are arranged around the axis of the impeller. A water delivery trough is provided on the side of the impeller close to the blades. The two bell mouths and the delivery channel form a delivery cavity. The delivery channel is connected to the delivery cavity through the water delivery trough. The interior of the blade is a hollow structure. An adsorption medium is provided in the blade, and a plurality of channels are provided on the surface of the blade.

[0011] Preferably, two guide blocks are provided on the side of the impeller close to the conveying chamber, guide grooves are provided in the guide blocks, and a guide ball is provided on the side of the blocking block close to the conveying chamber; the guide ball is slidably connected to the guide block; The pump conveys the electrolyzed water to the delivery channel through the pipeline, and the electrolyzed water then moves to the side close to the bell mouth through the delivery channel. Since the diameter of the delivery channel is larger than the diameter of the bell mouth, the flow rate of the electrolyzed water gradually increases, and the electrolyzed water then enters the bell mouth, and then moves to the impeller through the bell mouth. Since a number of blades are arranged on the inner wall of the impeller, the blades generate lateral force under the impact of the electrolyzed water, and then the blades rotate under the action of the lateral force, and then the blades drive the impeller to rotate, and the electrolyzed water also moves along the surface of the blade, and the electrolyzed water moves along the surface of the blade to the side close to the water delivery trough, and at the same time, a part of the electrolyzed water flows into the inside of the blade through the hole of the blade, and is driven by Activated carbon is arranged inside the blades. The activated carbon adsorbs impurities in the electrolyzed water, thereby achieving the adsorption effect of the porous medium, and then transports it to the delivery chamber through the water delivery trough. During the rotation of the impeller, the guide block is also driven to rotate. When the guide block rotates, it encounters one of the guide balls, and the guide ball immediately enters from one end of the guide groove in the guide block. During the rotation of the impeller, since the guide groove is convex, the guide ball is squeezed to move to the side away from the water outlet, so that the guide ball drives the blocking block to move, so that the blocking block is separated from the water outlet, and then the electrolytic cell is connected with the delivery chamber, and the electrolyzed water in the delivery chamber is immediately transported to the electrolytic cell through the water outlet.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. As the guide block rotates under the action of the impeller, and the guide ball moves to the end along the guide groove in the guide block, the guide ball slides out of the guide block. At this time, the blocking block loses its driving effect. The blocking block then moves to the side close to the water outlet under the action of the spring, so that the blocking block blocks the water outlet again, so that the electrolytic cell forms a closed space. Several electrode sheets simultaneously electrolyze electrolytic water in several electrolytic cells to prepare hydrogen and oxygen, thereby improving the efficiency of electrolytic hydrogen and oxygen production. Due to the closed space formed by the electrolytic cell, the capacity of electrolytic water stored in the electrolytic cell is less, which further improves the efficiency of electrolytic hydrogen and oxygen production, thereby improving the quality of electrolytic hydrogen and oxygen production. Electrolysis in a closed space avoids the leakage of generated hydrogen and oxygen, which leads to safety accidents, thereby improving the safety of the equipment, thereby improving the sealing performance of the electrolytic cell.

[0013] 2. During the electrolysis process, the controller controls the motor in the motor cavity to start, and the drive shaft in the motor drives the shaft to rotate. During the rotation of the shaft, the shaft drives the left spiral plate and the right spiral plate to rotate. Since the left spiral plate and the right spiral plate rotate in opposite directions, hydrogen is transported to the side close to the hydrogen cavity under the push of the left spiral plate, and oxygen is transported to the side close to the oxygen cavity under the push of the right spiral plate, thereby realizing the separate transportation of hydrogen and oxygen, and ensuring the safe transportation of hydrogen and oxygen, thereby avoiding the mixing of hydrogen and oxygen, thereby preventing safety accidents, and further improving the safety of the equipment.

[0014] 3. Since the diameters at both ends of the electrolytic cell are larger than the diameter in the middle of the electrolytic cell, and the diameters of the ends of the left and right spiral plates close to the center of the electrolytic cell are smaller than the diameters of the ends of the left and right spiral plates away from the electrolytic cell, the electrolytic cell diffuses from the center to both ends, so that a slope is formed on the side wall of the electrolytic cell, so that hydrogen and oxygen are respectively transported to the two ends of the electrolytic cell, and hydrogen is then transported to the hydrogen cavity through the gas outlet, and oxygen is transported to the oxygen cavity through the gas outlet, and finally hydrogen and oxygen are output and stored from the transport ports set at the top of the hydrogen cavity and the oxygen cavity, respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 is an internal front view of the present invention; Figure 4 is a cross-sectional view of the present invention; Figure 5 is a cross-sectional elevation view of the present invention; Figure 6 It is a schematic diagram of the structure of the impeller, blades, water delivery trough and guide block; Figure 7 It is a schematic diagram of the structure of the liquid surface in the electrolytic cell; Figure 8 It is a schematic diagram of the structure of the gas outlet and the hydrogen chamber; In the figure: 1, machine body; 11, conveying channel; 12, motor cavity; 13, bell mouth; 14, impeller; 15, blades; 16, water delivery trough; 17, conveying cavity; 18, guide block; 19, guide ball; 2. Electrolysis device; 21. Electrolytic cell; 22. Rotating shaft; 23. Electrode sheet; 24. Left spiral plate; 25. Right spiral plate; 26. Hydrogen chamber; 27. Oxygen chamber; 28. Gas outlet; 29. ​​Water outlet; 30. Sealing block.

[0016] A. The liquid level of the electrolyte in the electrolytic cell B. Vacuum area DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 8 , the present invention provides a technical solution: A low-concentration oxygen production device based on porous medium adsorption comprises: a body 1, a delivery path 11 is arranged in the middle of the body 1, a water storage tank is arranged outside the body 1, a pump is arranged in the water storage tank, and the pump is connected to the delivery path 11 through a pipeline, an electrolysis device 2 is arranged in the inner wall of the body 1 away from the delivery path 11, the delivery path 11 is connected to the electrolysis device 2, and the electrolysis device 2 comprises: an electrolytic cell 21, and the electrolytic cell 21 is arranged in the body 1; The staff controls the pump in the water tank to start through the controller, and the pump immediately extracts the electrolyzed water in the water tank, and the electrolyzed water is then transported to the delivery channel 11 through the pipeline, and then the electrolyzed water is transported to the electrolytic cell 21 through the delivery channel 11. The controller immediately controls the electrolysis device 2 to start, and the electrolysis device 2 immediately electrolyzes the electrolyzed water. The electrolyzed electrolyzed water generates hydrogen and oxygen, and finally the hydrogen and oxygen are transported out separately.

[0019] As a specific embodiment of the present invention, a plurality of electrolytic cells 21 are provided, and the plurality of electrolytic cells 21 are arranged around the axis of the conveying path 11. The diameters at both ends of the electrolytic cell 21 are larger than the diameter in the middle of the electrolytic cell 21. A rotating shaft 22 is provided in the electrolytic cell 21. A motor cavity 12 is provided at one end of the body 1. A motor is provided in the motor cavity 12. The rotating shaft 22 passes through the body 1 to connect to the drive shaft in the motor. A partition is provided in the middle of the electrolytic cell 21. The rotating shaft 22 passes through the partition. The two ends of the electrolytic cell 21 are separated by providing the partition to prevent hydrogen and oxygen from mixing in the electrolytic cell 21.

[0020] As a specific embodiment of the present invention, an electrode sheet 23 is provided on the surface of the rotating shaft 22, and the electrode sheet 23 is composed of a left spiral plate 24 and a right spiral plate 25. The left spiral plate 24 and the right spiral plate 25 are respectively arranged at the two ends of the rotating shaft 22, and the rotation directions of the left spiral plate 24 and the right spiral plate 25 are opposite. The left spiral plate 24 is a negative electrode, and the right spiral plate 25 is a positive electrode. The diameter of one end of the left spiral plate 24 and the right spiral plate 25 close to the center of the electrolytic cell 21 is smaller than the diameter of one end of the left spiral plate 24 and the right spiral plate 25 away from the electrolytic cell 21.

[0021] As a specific embodiment of the present invention, a hydrogen chamber 26 is provided at one end of the electrolytic cell 21 away from the motor chamber 12, and an oxygen chamber 27 is provided at one end of the electrolytic cell 21 close to the motor chamber 12. Gas outlets 28 are symmetrically provided at both ends of the electrolytic cell 21. One end of the electrolytic cell 21 is connected to the hydrogen chamber 26 through the gas outlet 28, and the other end of the electrolytic cell 21 is connected to the oxygen chamber 27 through the gas outlet 28. Delivery ports are provided at the tops of the hydrogen chamber 26 and the oxygen chamber 27.

[0022] As a specific embodiment of the present invention, a water outlet 29 is provided on one side of the electrolytic cell 21 close to the conveying channel 11, and the water outlet 29 connects the electrolytic cell 21 and the conveying channel 11. A blocking block 30 is provided in the water outlet 29, and a spring is provided between the blocking block 30 and the water outlet 29, and the blocking block 30 is slidably connected to the water outlet 29 through the spring; When the electrolyzed water enters the delivery channel 11, the blocking block 30 moves to the side away from the water outlet 29, so that the blocking block 30 loses its blocking effect on the water outlet 29, so that the water outlet 29 is connected to the delivery channel 11. Since the water pressure in the delivery channel 11 is greater than the water pressure in the electrolytic cell 21, the electrolyzed water in the delivery channel 11 immediately enters the water outlet 29, and is then transported to the electrolytic cell 21 through the water outlet 29. During the electrolyte transportation process, the electrode sheet 23 does not electrolyze the electrolyte. Each time the electrolyte is transported to the electrolytic cell 21, the electrolytic cell 21 is filled. Since the diameter of the two ends of the electrolytic cell 21 is greater than the diameter of the electrode sheet 23, the electrolyte is not electrolyzed. The diameter of the electrolytic cell 21 in the middle is the same as that of the liquid level at both ends of the electrolytic cell 21, so that there is a vacuum area at the top of the electrolytic cell 21 near the gas outlet 28; when the electrolyzed water enters the electrolytic cell 21, the controller controls the electrode sheet 23 to be energized, and the electrode sheet 23 immediately electrolyzes the electrolyzed water in the electrolytic cell 21. Since the left spiral plate 24 is the negative electrode and the right spiral plate 25 is the positive electrode, hydrogen is generated on the surface of the left spiral plate 24, and oxygen is generated on the surface of the right spiral plate 25; by setting the electrode sheet 23 in a spiral shape, the contact area between the electrode sheet 23 and the electrolyzed water is increased; As the guide block 18 rotates under the action of the impeller 14, and the guide ball 19 moves to the end along the guide groove in the guide block 18, the guide ball 19 slides out of the guide block 18, and the blocking block 30 loses its driving effect at this time. The blocking block 30 then moves to the side close to the water outlet 29 under the action of the spring, so that the blocking block 30 blocks the water outlet 29 again, so that the electrolytic cell 21 forms a closed space, and a plurality of electrode sheets 23 simultaneously electrolyze the electrolytic water in a plurality of electrolytic cells 21, thereby improving the efficiency of electrolytic oxygen production. Due to the closed space formed by the electrolytic cell 21, the capacity of the electrolytic water stored in the electrolytic cell 21 is small, and the electrolysis is performed in the closed space, which avoids the leakage of the generated hydrogen and oxygen, resulting in safety accidents. During the electrolysis process, the controller controls the motor in the motor chamber 12 to start, and the drive shaft in the motor drives the rotating shaft 22 to rotate. During the rotation of the rotating shaft 22, the rotating shaft 22 drives the left spiral plate 24 and the right spiral plate 25 to rotate. Since the left spiral plate 24 and the right spiral plate 25 rotate in opposite directions, hydrogen is transported to the side close to the hydrogen chamber 26 under the driving action of the left spiral plate 24, and oxygen is transported to the side close to the oxygen chamber 27 under the driving action of the right spiral plate 25, thereby realizing the separate transportation of hydrogen and oxygen, thereby avoiding the mixing of hydrogen and oxygen. Since the diameters at both ends of the electrolytic cell 21 are larger than the diameter in the middle of the electrolytic cell 21, and the diameters of the ends of the left spiral plate 24 and the right spiral plate 25 close to the center of the electrolytic cell 21 are smaller than the diameters of the ends of the left spiral plate 24 and the right spiral plate 25 away from the center of the electrolytic cell 21, the electrolytic cell 21 diffuses from the center to both ends, so that the side wall of the electrolytic cell 21 forms a slope, so that hydrogen and oxygen are respectively transported to the two ends of the electrolytic cell 21, and the hydrogen is then transported to the hydrogen chamber 26 through the gas outlet 28, and the oxygen is transported to the oxygen chamber 27 through the gas outlet 28. Finally, the hydrogen and oxygen are output and stored from the transport ports set at the top of the hydrogen chamber 26 and the oxygen chamber 27, respectively.

[0023] As a specific embodiment of the present invention, two bell mouths 13 are arranged in the conveying path 11 , and the two bell mouths 13 are symmetrically arranged in the middle of the conveying path 11 . An impeller 14 is arranged between the two bell mouths 13 , and the impeller 14 is rotatably connected to the bell mouths 13 .

[0024] As a specific embodiment of the present invention, a plurality of blades 15 are arranged on the inner wall of the impeller 14, and the plurality of blades 15 are arranged around the axis of the impeller 14. A water delivery trough 16 is arranged on the side of the impeller 14 close to the blade 15. The two bell mouths 13 and the delivery channel 11 form a delivery cavity 17. The delivery channel 11 is connected to the delivery cavity 17 through the water delivery trough 16. The interior of the blade 15 is a hollow structure, an adsorption medium is arranged in the blade 15, and a plurality of channels are arranged on the surface of the blade 15.

[0025] As a specific embodiment of the present invention, two guide blocks 18 are provided on the side of the impeller 14 close to the conveying chamber 17, and guide grooves are provided in the guide blocks 18. A guide ball 19 is provided on the side of the blocking block 30 close to the conveying chamber 17; the guide ball 19 is slidably connected to the guide block 18; The pump conveys the electrolyzed water to the delivery channel 11 through the pipeline, and the electrolyzed water then moves through the delivery channel 11 to the side close to the bell mouth 13. Since the diameter of the delivery channel 11 is larger than the diameter of the bell mouth 13, the flow rate of the electrolyzed water gradually increases, and the electrolyzed water then enters the bell mouth 13, and then moves to the impeller 14 through the bell mouth 13. Since a plurality of blades 15 are arranged on the inner wall of the impeller 14, the blades 15 generate lateral force under the impact of the electrolyzed water, and then the blades 15 rotate under the action of the lateral force, and then the blades 15 drive the impeller 14 to rotate, and the electrolyzed water also moves along the surface of the blades 15, and the electrolyzed water moves along the surface of the blades 15 to the side close to the water delivery trough 16, and at the same time, a part of the electrolyzed water flows into the inside of the blades 15 through the holes of the blades 15. Activated carbon is arranged inside 15, and the activated carbon adsorbs impurities in the electrolyzed water, thereby achieving the adsorption effect of the porous medium, and then the impeller 14 is transported to the delivery chamber 17 through the water delivery trough 16. During the rotation of the impeller 14, the guide block 18 is also driven to rotate. When the guide block 18 rotates, it encounters one of the guide balls 19, and the guide ball 19 immediately enters from one end of the guide groove in the guide block 18. During the rotation of the impeller 14, the guide block 18 is squeezed to move to the side away from the water outlet 29 due to the convex guide groove, so that the guide ball 19 drives the blocking block 30 to move, so that the blocking block 30 is separated from the water outlet 29, and then the electrolytic cell 21 is connected with the delivery chamber 17, and the electrolyzed water in the delivery chamber 17 is immediately transported to the electrolytic cell 21 through the water outlet 29.

[0026] Working principle of the present invention: The staff controls the pump in the water tank to start through the controller, and the pump conveys the electrolyzed water to the delivery channel 11 through the pipeline. The electrolyzed water then moves through the delivery channel 11 to the side close to the bell mouth 13. Since the diameter of the delivery channel 11 is larger than the diameter of the bell mouth 13, the flow rate of the electrolyzed water gradually increases, and the electrolyzed water then enters the bell mouth 13, and then moves to the impeller 14 through the bell mouth 13. Since a plurality of blades 15 are arranged on the inner wall of the impeller 14, the blades 15 generate lateral force under the impact of the electrolyzed water, and then the blades 15 rotate under the action of the lateral force, and then the blades 15 drive the impeller 14 to rotate, and the electrolyzed water also moves along the surface of the blades 15, and the electrolyzed water moves along the surface of the blades 15. The surface moves toward the side close to the water delivery groove 16, and then is delivered to the delivery chamber 17 through the water delivery groove 16. During the rotation of the impeller 14, the guide block 18 is also driven to rotate. When the guide block 18 rotates, it encounters one of the guide balls 19, and the guide ball 19 then enters from one end of the guide groove in the guide block 18. During the rotation of the impeller 14, the guide block 18 is squeezed to move to the side away from the water flow port 29 due to the convex guide groove, so that the guide ball 19 drives the blocking block 30 to move, so that the blocking block 30 is separated from the water flow port 29, and then the electrolytic cell 21 is connected with the delivery chamber 17, and the electrolyzed water in the delivery chamber 17 is then delivered to the electrolytic cell 21 through the water flow port 29; When the electrolyzed water enters the delivery channel 11, the blocking block 30 moves to the side away from the water outlet 29, so that the blocking block 30 loses its blocking effect on the water outlet 29, so that the water outlet 29 is connected to the delivery channel 11. Since the water pressure in the delivery channel 11 is greater than the water pressure in the electrolytic cell 21, the electrolyzed water in the delivery channel 11 immediately enters the water outlet 29, and is then transported to the electrolytic cell 21 through the water outlet 29. During the electrolyte transportation process, the electrode sheet 23 does not electrolyze the electrolyte. Each time the electrolyte is transported to the electrolytic cell 21, the electrolytic cell 21 is filled. Since the diameter of the two ends of the electrolytic cell 21 is greater than the diameter of the electrode sheet 23, the electrolyte is not electrolyzed. The diameter of the electrolytic cell 21 in the middle is the same as that of the liquid level at both ends of the electrolytic cell 21, so that there is a vacuum area at the top of the electrolytic cell 21 near the gas outlet 28; when the electrolyzed water enters the electrolytic cell 21, the controller controls the electrode sheet 23 to be energized, and the electrode sheet 23 immediately electrolyzes the electrolyzed water in the electrolytic cell 21. Since the left spiral plate 24 is the negative electrode and the right spiral plate 25 is the positive electrode, hydrogen is generated on the surface of the left spiral plate 24, and oxygen is generated on the surface of the right spiral plate 25; by setting the electrode sheet 23 in a spiral shape, the contact area between the electrode sheet 23 and the electrolyzed water is increased; As the guide block 18 rotates under the action of the impeller 14, and the guide ball 19 moves to the end along the guide groove in the guide block 18, the guide ball 19 slides out of the guide block 18, and the blocking block 30 loses its driving effect at this time. The blocking block 30 then moves to the side close to the water outlet 29 under the action of the spring, so that the blocking block 30 blocks the water outlet 29 again, so that the electrolytic cell 21 forms a closed space, and a plurality of electrode sheets 23 simultaneously electrolyze the electrolytic water in a plurality of electrolytic cells 21, thereby improving the efficiency of electrolytic oxygen production. Due to the closed space formed by the electrolytic cell 21, the capacity of the electrolytic water stored in the electrolytic cell 21 is small, and the electrolysis is performed in the closed space, which avoids the leakage of the generated hydrogen and oxygen, resulting in safety accidents. During the electrolysis process, the controller controls the motor in the motor chamber 12 to start, and the drive shaft in the motor drives the rotating shaft 22 to rotate. During the rotation of the rotating shaft 22, the rotating shaft 22 drives the left spiral plate 24 and the right spiral plate 25 to rotate. Since the left spiral plate 24 and the right spiral plate 25 rotate in opposite directions, hydrogen is transported to the side close to the hydrogen chamber 26 under the driving action of the left spiral plate 24, and oxygen is transported to the side close to the oxygen chamber 27 under the driving action of the right spiral plate 25, thereby realizing the separate transportation of hydrogen and oxygen, thereby avoiding the mixing of hydrogen and oxygen. Since the diameters at both ends of the electrolytic cell 21 are larger than the diameter in the middle of the electrolytic cell 21, and the diameters of the ends of the left spiral plate 24 and the right spiral plate 25 close to the center of the electrolytic cell 21 are smaller than the diameters of the ends of the left spiral plate 24 and the right spiral plate 25 away from the electrolytic cell 21, the electrolytic cell 21 diffuses from the center to both ends, so that the side wall of the electrolytic cell 21 forms a slope, so that hydrogen and oxygen are respectively transported to the two ends of the electrolytic cell 21, and the hydrogen is then transported to the hydrogen chamber 26 through the gas outlet 28, and the oxygen is transported to the oxygen chamber 27 through the gas outlet 28. Finally, the hydrogen and oxygen are output and stored from the transport ports set at the top of the hydrogen chamber 26 and the oxygen chamber 27, respectively.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-concentration oxygen production device based on porous medium adsorption, characterized in that: include: A machine body (1), wherein a conveying channel (11) is arranged in the middle of the machine body (1), a water storage tank is arranged outside the machine body (1), a pump is arranged in the water storage tank, and the pump is connected to the conveying channel (11) through a pipeline; an electrolysis device (2) is arranged in the inner wall of the machine body (1) away from the conveying channel (11), and the conveying channel (11) is connected to the electrolysis device (2), and the electrolysis device (2) comprises: an electrolysis cell (21), and the electrolysis cell (21) is arranged in the machine body (1).

2. The low-concentration oxygen production device based on porous medium adsorption according to claim 1 is characterized in that: A plurality of electrolytic cells (21) are provided, and the plurality of electrolytic cells (21) are arranged around the axis of the conveying path (11). The diameters at both ends of the electrolytic cell (21) are larger than the diameter in the middle of the electrolytic cell (21). A rotating shaft (22) is provided in the electrolytic cell (21). A motor cavity (12) is provided at one end of the machine body (1). A motor is provided in the motor cavity (12). The rotating shaft (22) passes through the machine body (1) and is connected to a drive shaft in the motor. A partition is provided in the middle of the electrolytic cell (21), and the rotating shaft (22) passes through the partition.

3. The low-concentration oxygen production device based on porous medium adsorption according to claim 2 is characterized in that: An electrode sheet (23) is arranged on the surface of the rotating shaft (22), and the electrode sheet (23) is composed of a left spiral plate (24) and a right spiral plate (25). The left spiral plate (24) and the right spiral plate (25) are arranged at two ends of the rotating shaft (22) respectively. The left spiral plate (24) and the right spiral plate (25) rotate in opposite directions. The left spiral plate (24) is a negative electrode, and the right spiral plate (25) is a positive electrode. The diameter of one end of the left spiral plate (24) and the right spiral plate (25) close to the center of the electrolytic cell (21) is smaller than the diameter of one end of the left spiral plate (24) and the right spiral plate (25) far from the center of the electrolytic cell (21).

4. The low-concentration oxygen production device based on porous medium adsorption according to claim 2 is characterized in that: A hydrogen chamber (26) is arranged at one end of the electrolytic cell (21) away from the motor chamber (12), and an oxygen chamber (27) is arranged at one end of the electrolytic cell (21) close to the motor chamber (12). Gas outlets (28) are symmetrically arranged at both ends of the electrolytic cell (21). One end of the electrolytic cell (21) is connected to the hydrogen chamber (26) through the gas outlet (28), and the other end of the electrolytic cell (21) is connected to the oxygen chamber (27) through the gas outlet (28). The tops of the hydrogen chamber (26) and the oxygen chamber (27) are both provided with delivery ports.

5. The low-concentration oxygen production device based on porous medium adsorption according to claim 1 is characterized in that: A water outlet (29) is provided on one side of the electrolytic cell (21) close to the conveying channel (11), the water outlet (29) being in communication with the electrolytic cell (21) and the conveying channel (11), a blocking block (30) being provided in the water outlet (29), a spring being provided between the blocking block (30) and the water outlet (29), and the blocking block (30) being slidably connected to the water outlet (29) via the spring.

6. The low-concentration oxygen production device based on porous medium adsorption according to claim 1 is characterized in that: Two bell mouths (13) are arranged in the conveying path (11), and the two bell mouths (13) are symmetrically arranged in the middle of the conveying path (11). An impeller (14) is arranged between the two bell mouths (13), and the impeller (14) is rotatably connected to the bell mouth (13).

7. The low-concentration oxygen production device based on porous medium adsorption according to claim 6 is characterized in that: A plurality of blades (15) are arranged on the inner wall of the impeller (14), and the plurality of blades (15) are arranged around the axis of the impeller (14). A water delivery trough (16) is arranged on one side of the impeller (14) close to the blades (15). The two bell mouths (13) and the delivery channel (11) form a delivery cavity (17). The delivery channel (11) is connected to the delivery cavity (17) through the water delivery trough (16). The interior of the blade (15) is a hollow structure. An adsorption medium is arranged inside the blade (15). A plurality of channels are arranged on the surface of the blade (15).

8. The low-concentration oxygen production device based on porous medium adsorption according to claim 7 is characterized in that: Two guide blocks (18) are arranged on one side of the impeller (14) close to the conveying chamber (17), and guide grooves are arranged in the guide blocks (18). A guide ball (19) is arranged on one side of the blocking block (30) close to the conveying chamber (17); and the guide ball (19) is slidably connected to the guide block (18).

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