Oxygen purity monitoring device with automatic recovery function

Abstract

The application discloses an oxygen purity monitoring device with an automatic recovery function, relates to the technical field of sensor detection, and discloses an oxygen purity monitoring device with an automatic recovery function, which comprises a machine case, a base, two stop valves, a spiral dust removal assembly, a detection assembly and a recovery assembly. The machine case is arranged on the base, and air inlet and air outlet connecting holes are formed in the two sides of the machine case. The two stop valves comprise a first stop valve and a second stop valve. The first stop valve is arranged at the position of the air inlet connecting hole, and the second stop valve is arranged at the position of the air outlet connecting hole. One end of the spiral dust removal assembly is connected with the first stop valve, and the other end of the spiral dust removal assembly is connected with the detection assembly. The detection assembly is connected with the second stop valve through an air outlet pipe. The technical scheme of centrifugal separation is used to separate floating impurities in oxygen, so that the oxygen concentration is prevented from being interfered with during detection, and the precision of oxygen concentration detection is improved.

Description

Technical Field

[0001] This invention relates to the field of sensor detection technology, specifically to an oxygen purity monitoring device with automatic recovery function. Background Technology

[0002] Oxygen concentration detection is a core technology for ensuring human health and industrial safety. Its applications cover medical monitoring, industrial protection, environmental optimization, and special field needs. Oxygen is required in many industrial production settings, playing an indispensable role as a combustion accelerant. In the medical field, oxygen plays a vital role in protecting patients' lives. Oxygen concentration detection is one of the most important processes in oxygen preparation. With the development of intelligent systems, integrated multi-parameter monitoring systems will further improve detection efficiency and safety. Existing oxygen detection equipment is connected to the oxygen supply system. The oxygen pressure in the oxygen supply pipeline is usually high, and the detection equipment will inevitably be impacted by the airflow when connecting to or disconnecting from the oxygen system, causing the entire detection device to vibrate due to rigid impact. Over time, this can easily damage the detection equipment. Under normal circumstances, the detection equipment is not connected in series with the oxygen supply system, so the oxygen used for concentration detection does not enter the system circulation, resulting in oxygen waste. Summary of the Invention

[0003] The purpose of this invention is to provide an oxygen purity monitoring device with automatic recovery function to solve the problems raised in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an oxygen purity monitoring device with automatic recovery function, comprising a chassis, a base, two shut-off valves, a spiral dust collector assembly, a detection assembly, and a recovery assembly. The chassis is mounted on the base, and an air inlet and an air outlet are respectively provided on both sides of the chassis. The two shut-off valves include a first shut-off valve and a second shut-off valve. The first shut-off valve is located at the air inlet, and the second shut-off valve is located at the air outlet. One end of the spiral dust collector assembly is connected to the first shut-off valve, and the other end of the spiral dust collector assembly is connected to the detection assembly. The detection assembly is connected to the second shut-off valve through an air outlet pipe.

[0005] Furthermore, the base is provided with brackets for installing the first and second shut-off valves. Each set of brackets is symmetrically provided with sliding seats. The first shut-off valve includes a fixed valve body, a rotating valve body, and six sealing plates. The fixed valve body and the rotating valve body are provided with docking rings on the sides away from each other. Each pair of sliding seats is provided with an annular groove on the sides close to each other. The docking rings are slidably and sealingly installed in the annular grooves.

[0006] Furthermore, a shock-absorbing spring is provided between each of the annular grooves and the docking ring. The rotating valve body is rotatably connected to the fixed valve body, with the rotating valve body partially encased in the inner layer of the fixed valve body. Six sealing plates are installed between the fixed valve body and the rotating valve body. The fixed valve body can only slide along the axial direction of the docking ring. Since the oxygen in the oxygen supply system has a certain pressure, when the first or second shut-off valve is closed, the inertia of the gas flow does not immediately disappear. The sealing plates bear the impact of the airflow, and the impact force is transmitted to the fixed valve body, causing the fixed valve body to move. Due to the sealed connection between the docking ring and the annular groove, the air pressure in the annular groove increases. The shock-absorbing spring simultaneously weakens the impact on the fixed valve body. After the impact force of the airflow disappears, under the push of the shock-absorbing springs on both sides and the air pressure in the annular grooves on both sides, the first shut-off valve returns to the middle of a pair of sliding seats. Similarly, the second shut-off valve is also suitable for weakening the impact generated when the valve body is closed. By setting a sliding shut-off valve, the airflow impact generated when the shut-off valve is opened and closed is gradually weakened, avoiding the rigid impact vibration of the entire detection device and protecting the detection equipment from damage.

[0007] Furthermore, each of the closed gate plates is provided with a cylindrical slider on the side near the fixed valve body, and a rectangular slider is provided on one side of each closed gate plate. The fixed valve body has six oblique sliding grooves, which are evenly distributed around the circumference. Each cylindrical slider is slidably installed in one oblique sliding groove. The rotating valve body has hexagonal sliding grooves, and all six rectangular sliders are installed in the hexagonal sliding grooves.

[0008] Furthermore, the outer contour of the rotating valve body is provided with three magnetic protrusions, which are evenly distributed circumferentially. The fixed valve body has a through groove for the magnetic protrusions to slide. An electromagnet is provided on the outer side of the fixed valve body corresponding to the edge of each through groove. A return spring is provided between each magnetic protrusion and the through groove. When the valve body is closed, when the electromagnet is energized, the electromagnet generates a magnetic force. The magnetic protrusion is attracted by the electromagnet, overcoming the elastic force of the return spring. The magnetic protrusion drives the rotating valve body to rotate, and the hexagonal slide moves the sealing plate, opening the valve body and allowing oxygen to flow. After the electromagnet is de-energized, the rotating valve body returns to its original position under the pushing force of the return spring, and the valve body closes, cutting off the oxygen supply.

[0009] Furthermore, the structure of the second shut-off valve is the same as that of the first shut-off valve.

[0010] Furthermore, the spiral dust removal assembly includes a spiral tube, a dust discharge pipe, a water tank, and a recovery pipe. The detection assembly includes a detection box and a constricted tube. One end of the spiral tube is connected to the sliding seat of the first shut-off valve, and the other end of the spiral tube is connected to the detection box. The tangential direction of the spiral tube is connected to the dust discharge pipe. Both the dust discharge pipe and the recovery pipe are connected to the water tank. The constricted tube is connected to one side of the detection box. One end of the recovery pipe is connected through the middle of the constricted tube. The end of the constricted tube away from the detection box is connected to the exhaust pipe. After oxygen enters the spiral tube, the spiral tube guides the oxygen to flow spirally. Under the action of centrifugal force, floating impurities in the oxygen flow to the outer layer. After flowing to the bottom, they are discharged along the dust discharge pipe. By using centrifugal separation technology, floating impurities in the oxygen are separated, avoiding interference with oxygen concentration detection and improving the accuracy of oxygen concentration detection. The de-dusted oxygen enters the detection box. Oxygen has absorption characteristics for infrared light of a specific wavelength. The intensity of infrared light is received by the receiving plate, and the oxygen concentration is calculated by using the light intensity attenuation, providing real-time feedback on the oxygen concentration index.

[0011] Furthermore, an aeration head is installed at one end of the dust discharge pipe inside the water tank, and the aeration head is submerged in water. Moisture-absorbing cotton is installed inside the recovery pipe. The detection assembly also includes an infrared generator and a receiving plate, which are installed inside the detection box and connected to the control system via a circuit. Oxygen carrying floating impurities enters the water tank and overflows upwards from the water through the aeration head. At this time, the floating impurities are filtered by the water, and the pure oxygen enters the recovery pipe. The moisture-absorbing cotton absorbs the moisture in the oxygen. Because the oxygen flow rate increases and the pressure decreases when passing through the constriction tube, it acts as a suction force on the oxygen in the recovery pipe, assisting in the return of filtered oxygen to the system, thus achieving a recycling and efficiency enhancement effect.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By setting a sliding shut-off valve, the airflow impact generated when the shut-off valve opens and closes is gradually weakened, avoiding rigid impact vibration of the entire detection device and protecting the detection equipment from damage; by using centrifugal separation technology, floating impurities in oxygen are separated, avoiding interference with oxygen concentration during detection and improving the accuracy of oxygen concentration detection; when oxygen passes through the constricted tube, the flow rate increases, and the pressure difference is used to draw oxygen in the recovery tube, assisting the return of filtered oxygen to the system, thus playing a role in recovery and efficiency enhancement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 ;

[0017] Figure 4 This is a schematic diagram of the structure of the first shut-off valve of the present invention. Figure 1 ;

[0018] Figure 5 This is a schematic diagram of the structure of the first shut-off valve of the present invention. Figure 2 ;

[0019] Figure 6 This is a schematic diagram of the structure of the first shut-off valve of the present invention. Figure 3 ;

[0020] Figure 7 This is a schematic diagram of the internal structure of the present invention. Figure 3 ;

[0021] Figure 8 This is a schematic diagram of the internal structure of the present invention. Figure 4 .

[0022] In the diagram: 1. Chassis; 2. Base; 3. First shut-off valve; 4. Second shut-off valve; 5. Spiral tube; 6. Detection box; 7. Dust exhaust pipe; 8. Water tank; 9. Aeration head; 10. Recovery pipe; 11. Necked tube; 12. Air outlet pipe; 13. Sliding seat; 14. Fixed valve body; 15. Rotating valve body; 16. Connecting ring; 17. Electromagnet; 18. Return spring; 19. Magnetic protrusion; 20. Inclined slide groove; 21. Hexagonal slide groove; 22. Sealing plate; 23. Cylindrical slider; 24. Rectangular slider; 25. Infrared generator; 26. Receiver plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example: Figures 1-8As shown, the present invention provides a technical solution: an oxygen purity monitoring device with automatic recovery function, comprising a chassis 1, a base 2, two shut-off valves, a spiral dust collector assembly, a detection assembly, and a recovery assembly. The chassis 1 is mounted on the base 2, and inlet and outlet ports are respectively provided on both sides of the chassis 1. The two shut-off valves include a first shut-off valve 3 and a second shut-off valve 4. The first shut-off valve 3 is located at the inlet port, and the second shut-off valve 4 is located at the outlet port. One end of the spiral dust collector assembly is connected to the first shut-off valve 3, and the other end of the spiral dust collector assembly is connected to the detection assembly. The components are connected, and the detection component is connected to the second shut-off valve 4 through an air outlet pipe 12. The base 2 is provided with a bracket for installing the first shut-off valve 3 and the second shut-off valve 4. Each set of brackets is symmetrically provided with sliding seats 13. The first shut-off valve 3 includes a fixed valve body 14, a rotating valve body 15 and six sealing plates 22. The fixed valve body 14 and the rotating valve body 15 are provided with a docking ring 16 on the side away from each other. Each pair of sliding seats 13 is provided with an annular groove on the side close to each other. The docking ring 16 is slidably sealed in the annular groove. The structure of the second shut-off valve 4 is the same as that of the first shut-off valve 3.

[0025] A shock-absorbing spring (not shown in the figure) is provided between each annular groove and the docking ring 16. The rotating valve body 15 is rotatably connected to the fixed valve body 14, and the rotating valve body 15 is partially enclosed in the inner layer of the fixed valve body 14. Six sealing plates 22 are installed between the fixed valve body 14 and the rotating valve body 15. The fixed valve body 14 can only slide along the axial direction of the docking ring 16. Since the oxygen in the oxygen supply system has a certain pressure, when the first shut-off valve 3 or the second shut-off valve 4 is closed, the inertia of the gas flow will not disappear immediately. The sealing plates 22 bear the impact of the airflow, and the impact force is transmitted to the fixed valve body 14. As body 14 moves, the air pressure in the annular groove increases due to the sealed connection between the docking ring 16 and the annular groove. The shock-absorbing springs simultaneously weaken the impact on the fixed valve body 14. After the impact force of the airflow disappears, the first shut-off valve 3 returns to the middle of the pair of sliding seats 13 under the push of the shock-absorbing springs on both sides and the air pressure in the annular grooves on both sides. Similarly, the second shut-off valve 4 is also suitable for weakening the impact generated when the valve body is closed. By setting a sliding shut-off valve, the airflow impact generated when the shut-off valve is opened and closed is gradually weakened, avoiding the vibration of rigid impact on the entire detection device and protecting the detection equipment from damage.

[0026] Each enclosed gate plate 22 has a cylindrical slider 23 on one side near the fixed valve body 14, and a rectangular slider 24 on one side of each enclosed gate plate 22. The fixed valve body 14 has six oblique sliding grooves 20, which are evenly distributed around the circumference. Each cylindrical slider 23 is slidably installed in one oblique sliding groove 20. The rotating valve body 15 has hexagonal sliding grooves 21, and all six rectangular sliders 24 are installed in the hexagonal sliding grooves 21. The outer contour of the rotating valve body 15 has three magnetic protrusions 19, which are evenly distributed around the circumference. The fixed valve body 14 has through grooves for the magnetic protrusions 19 to slide. An electromagnet 17 is provided on the outer side of the fixed valve body 14 corresponding to the edge of each through slot. A return spring 18 is provided between each magnetic protrusion 19 and the through slot. When the valve body is closed, when the electromagnet 17 is energized, the electromagnet 17 generates a magnetic attraction force. The magnetic protrusion 19 overcomes the elastic force of the return spring 18 and is attracted by the electromagnet 17. The magnetic protrusion 19 drives the rotating valve body 15 to rotate. The hexagonal slide 21 drives the closing plate 22 to move, opening the valve body and allowing oxygen to flow. After the electromagnet 17 is de-energized, the rotating valve body 15 returns to its original position under the pushing force of the return spring 18, and the valve body closes, cutting off the oxygen supply.

[0027] The spiral dust collector assembly includes a spiral tube 5, a dust discharge pipe 7, a water tank 8, and a recovery pipe 10. The detection assembly includes a detection box 6 and a necked tube 11. One end of the spiral tube 5 is connected to the sliding seat 13 of the first shut-off valve 3, and the other end of the spiral tube 5 is connected to the detection box 6. The tangential direction of the spiral tube 5 is connected to the dust discharge pipe 7. Both the dust discharge pipe 7 and the recovery pipe 10 are connected to the water tank 8. The necked tube 11 is connected to one side of the detection box 6. One end of the recovery pipe 10 is connected through the middle of the necked tube 11. The end of the necked tube 11 away from the detection box 6 is connected to the exhaust pipe. The 12-phase connection allows oxygen to enter the spiral tube 5, which guides the oxygen to flow in a spiral. Under the action of centrifugal force, floating impurities in the oxygen flow to the outer layer. After flowing to the bottom, they are discharged along the dust discharge pipe 7. By using centrifugal separation technology, floating impurities in the oxygen are separated, avoiding interference with the oxygen concentration during detection. The de-dusted oxygen enters the detection chamber 6. Oxygen has absorption characteristics for infrared light of a specific wavelength. The intensity of infrared light is received by the receiving plate 26, and the oxygen concentration is calculated by using the light intensity attenuation, providing real-time feedback on the oxygen concentration index.

[0028] An aeration head 9 is installed at one end of the dust discharge pipe 7 inside the water tank 8. The aeration head 9 is submerged in water. The inside of the recovery pipe 10 is equipped with absorbent cotton (not shown in the figure). The detection assembly also includes an infrared generator 25 and a receiving plate 26, which are installed inside the detection box 6. The infrared generator 25 and the receiving plate 26 are connected to the control system through a circuit. Oxygen carrying floating impurities enters the water tank 8 and overflows from the water through the aeration head 9. At this time, the floating impurities are filtered by the water, and the pure oxygen enters the recovery pipe 10. The absorbent cotton absorbs the moisture in the oxygen. As the oxygen flow rate increases and the pressure decreases when it passes through the constriction tube 11, it plays a role in suction of the oxygen in the recovery pipe 10, and the filtered oxygen is returned to the system, which plays a role in recovery and efficiency enhancement.

[0029] The working principle of this invention is as follows: Since the oxygen in the oxygen supply system has a certain pressure, when the first shut-off valve 3 or the second shut-off valve 4 is closed, the inertia of the gas flow will not disappear immediately. The sealing plate 22 bears the impact of the airflow, and the impact force is transmitted to the fixed valve body 14. The fixed valve body 14 moves. Since the docking ring 16 is sealed to the annular slide groove, the air pressure in the annular slide groove increases. The shock-absorbing spring weakens the impact on the fixed valve body 14. After the impact force of the airflow disappears, under the push of the shock-absorbing springs on both sides and the air pressure in the annular slide grooves on both sides, the first shut-off valve 3 returns to the middle of the pair of sliding seats 13. Similarly, the second shut-off valve 4 is also suitable for weakening the impact generated when the valve body is closed. By setting a sliding shut-off valve, the airflow impact generated when the shut-off valve is opened and closed is gradually weakened, avoiding the rigid impact vibration of the entire detection device and protecting the detection equipment from damage.

[0030] When the valve body is closed, energizing the electromagnet 17 generates a magnetic attraction force. The magnetic protrusion 19 overcomes the elastic force of the return spring 18 and is attracted by the electromagnet 17. The magnetic protrusion 19 drives the rotating valve body 15 to rotate, and the hexagonal slide 21 drives the closing plate 22 to move, opening the valve body and allowing oxygen to flow. After the electromagnet 17 is de-energized, the rotating valve body 15 returns to its original position under the pushing force of the return spring 18, and the valve body closes, cutting off the oxygen supply.

[0031] After oxygen enters the spiral tube 5, the spiral tube 5 guides the oxygen to flow in a spiral. Under the action of centrifugal force, the floating impurities in the oxygen flow to the outer layer. After flowing to the bottom, they are discharged along the dust discharge pipe 7. The centrifugal separation technology is used to separate the floating impurities in the oxygen, so as to avoid interference with the oxygen concentration during detection. The de-dusted oxygen enters the detection chamber 6. Oxygen has the characteristic of absorbing infrared light of a specific wavelength. The intensity of infrared light is received by the receiving plate 26, and the oxygen concentration is calculated by using the light intensity attenuation, and the oxygen concentration index is fed back in real time.

[0032] Oxygen carrying floating impurities enters the water tank 8 and overflows upward from the water through the aeration head 9. At this time, the floating impurities are filtered by the water, and the pure oxygen enters the recovery pipe 10. The absorbent cotton absorbs the moisture in the oxygen. As the oxygen flows through the constriction tube 11, the flow rate increases and the pressure decreases, which plays a role in suction of the oxygen in the recovery pipe 10. The filtered oxygen is returned to the system, which plays a role in recycling and improving efficiency.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oxygen purity monitoring device with automatic recovery function, characterized in that: The system includes a chassis (1), a base (2), two shut-off valves, a spiral dust collector assembly, a detection assembly, and a recycling assembly. The chassis (1) is mounted on the base (2). An air inlet and an air outlet are respectively provided on both sides of the chassis (1). The two shut-off valves include a first shut-off valve (3) and a second shut-off valve (4). The first shut-off valve (3) is located at the air inlet, and the second shut-off valve (4) is located at the air outlet. One end of the spiral dust collector assembly is connected to the first shut-off valve (3), and the other end of the spiral dust collector assembly is connected to the detection assembly. The detection assembly is connected to the second shut-off valve (4) through an air outlet pipe (12). The base (2) is provided with a bracket for installing the first shut-off valve (3) and the second shut-off valve (4). Each bracket is symmetrically provided with a sliding seat (13). The first shut-off valve (3) includes a fixed valve body (14), a rotating valve body (15) and six sealing plates (22). The fixed valve body (14) and the rotating valve body (15) are provided with a docking ring (16) on the side away from each other. Each pair of sliding seats (13) is provided with an annular groove on the side close to each other. The docking ring (16) is slidably and sealed in the annular groove. A shock-absorbing spring is provided between each of the annular grooves and the docking ring (16). The rotating valve body (15) is rotatably connected to the fixed valve body (14). The rotating valve body (15) is partially enclosed in the inner layer of the fixed valve body (14). Six sealing plates (22) are installed between the fixed valve body (14) and the rotating valve body (15). The fixed valve body (14) can only slide along the axial direction of the docking ring (16).

2. The oxygen purity monitoring device with automatic recovery function according to claim 1, characterized in that: Each of the closed gate plates (22) is provided with a cylindrical slider (23) on one side near the fixed valve body (14), and a rectangular slider (24) is provided on one side of each closed gate plate (22). The fixed valve body (14) is provided with six oblique sliding grooves (20), which are evenly distributed around the circumference. Each cylindrical slider (23) is slidably installed in one oblique sliding groove (20). The rotating valve body (15) is provided with a hexagonal sliding groove (21), and the six rectangular sliders (24) are all installed in the hexagonal sliding grooves (21).

3. The oxygen purity monitoring device with automatic recovery function according to claim 1, characterized in that: The outer contour of the rotating valve body (15) is provided with three magnetic protrusions (19), which are evenly distributed in a circle. The fixed valve body (14) is provided with a through groove for the magnetic protrusions (19) to slide. An electromagnet (17) is provided on the outer side of the fixed valve body (14) corresponding to the edge of each through groove. A reset spring (18) is provided between each magnetic protrusion (19) and the through groove.

4. An oxygen purity monitoring device with automatic recovery function according to any one of claims 1-3, characterized in that: The structure of the second shut-off valve (4) is the same as that of the first shut-off valve (3).

5. The oxygen purity monitoring device with automatic recovery function according to claim 1, characterized in that: The spiral dust removal assembly includes a spiral tube (5), a dust discharge pipe (7), a water tank (8), and a recovery pipe (10). The detection assembly includes a detection box (6) and a constricted tube (11). One end of the spiral tube (5) is connected to the sliding seat (13) of the first shut-off valve (3), and the other end of the spiral tube (5) is connected to the detection box (6). The tangential direction of the bottom outer side of the spiral tube (5) is connected to the dust discharge pipe (7). The dust discharge pipe (7) and the recovery pipe (10) are both connected to the water tank (8). The constricted tube (11) is connected to one side of the detection box (6). One end of the recovery pipe (10) is connected to the middle of the constricted tube (11). The end of the constricted tube (11) away from the detection box (6) is connected to the air outlet pipe (12).

6. The oxygen purity monitoring device with automatic recovery function according to claim 5, characterized in that: An aeration head (9) is provided at one end of the dust discharge pipe (7) located inside the water tank (8). The aeration head (9) is submerged in water. The inside of the recovery pipe (10) is provided with absorbent cotton. The detection assembly also includes an infrared generator (25) and a receiving plate (26). The infrared generator (25) and the receiving plate (26) are installed in the detection box (6). The infrared generator (25) and the receiving plate (26) are connected to the control system through a circuit.

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