An oxygen automatic gas distribution, regulating and filling device

Abstract

The present invention discloses an automatic oxygen distribution, regulating and filling device. The device comprises: a compressed air source unit; a gas pretreatment unit, whose input end is connected to the output end of the compressed air source unit; an oxygen-nitrogen separation unit, which comprises: an oxygen-nitrogen separation module, a first oxygen-enriched storage tank and a second oxygen-enriched storage tank; the first output end of the gas pretreatment unit is connected to the input end of the first oxygen-enriched storage tank through a first regulating valve; the first output end of the oxygen-nitrogen separation module is connected to the input end of the first oxygen-enriched storage tank through a second regulating valve, and the second output end of the oxygen-nitrogen separation module is connected to the input end of the gas distribution bag through a third regulating valve; a control unit, which is used to automatically control the opening of the first regulating valve, the second regulating valve and the third regulating valve according to the purity of oxygen distribution; an output unit, whose output end is used to deliver oxygen to various gas equipment. Through the device, automatic regulation and precise control in the process of preparing oxygen with different purities are realized.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen preparation, in particular to an automatic oxygen gas distribution, regulation and filling device. Background Art

[0002] With the continuous upgrading of gas demand in the biopharmaceutical (BD) industry and other related industries, traditional pure oxygen production devices have gradually exposed many drawbacks that cannot meet the requirements of modern production. In the past, the gas supply system that relied on traditional oxygen generators often could not achieve precise allocation and automatic control, resulting in limited stability and accuracy of gas supply.

[0003] With regard to the problem that the oxygen production device in the prior art cannot adjust the accuracy and is not automated, no effective solution has been proposed yet. Summary of the invention

[0004] An oxygen automatic gas distribution, adjustment and filling device is provided in an embodiment of the present invention to solve the problem that the oxygen production device in the prior art cannot adjust the accuracy and is not automated.

[0005] To achieve the above-mentioned object, the present invention provides an automatic oxygen gas distribution, regulation and filling device, which comprises: a compressed air source unit, which is used to compress air; a gas pretreatment unit, the input end of which is connected to the output end of the compressed air source unit, and is used to pretreat the compressed air; an oxygen-nitrogen separation unit, which comprises: an oxygen-nitrogen separation module, a first oxygen-enriched storage tank and a second oxygen-enriched storage tank; the first output end of the gas pretreatment unit is connected to the input end of the first oxygen-enriched storage tank through a first regulating valve; the first output end of the oxygen-nitrogen separation module is connected to the input end of the first oxygen-enriched storage tank through a second regulating valve, and the oxygen-nitrogen separation module is connected to the input end of the first oxygen-enriched storage tank through a second regulating valve. The second output end of the oxygen-nitrogen separation module is connected to the input end of the gas separation bag through the third regulating valve; the output end of the first oxygen-enriched storage tank is connected to the input end of the second oxygen-enriched storage tank; a control unit, the control unit is electrically connected to the first regulating valve, the second regulating valve, and the third regulating valve, and is used to automatically control the opening of the first regulating valve, the second regulating valve, and the third regulating valve according to the purity of oxygen distribution; an oxygen boosting unit, the input end of the oxygen boosting unit is connected to the output end of the second oxygen-enriched storage tank; an output unit, whose input end is connected to the output end of the oxygen boosting unit, and the output end is used to transport the pressurized oxygen to various gas equipment.

[0006] Optionally, the compressed air source unit includes: a compressor for compressing air; and an air buffer tank, wherein an input end of the air buffer tank is connected to an output end of the compressor for storing compressed air.

[0007] Optionally, the gas pretreatment unit includes: a filter module and a drying module; the input end of the filter module is connected to the output end of the air buffer tank; the output end of the filter module is connected to the first input end of the drying module.

[0008] Optionally, the second input end of the drying module is connected to the first output end of the gas separation bag through a manual valve for reabsorbent nitrogen; the first output end of the drying module is connected to the input end of the first oxygen-enriched storage tank through a first regulating valve; the second output end of the drying module is connected to the input end of the oxygen-nitrogen separation module.

[0009] Optionally, the second output end of the gas separation bag is connected to an exhaust silencer for outputting nitrogen; the third output end of the gas separation bag is a sampling port.

[0010] Optionally, it also includes: a concentration detection unit, used to detect the concentration of nitrogen taken out from the sampling port; the control unit is electrically connected to the concentration detection unit, and is used to control the opening of the first regulating valve, the second regulating valve, and the third regulating valve according to the concentration of nitrogen measured by the concentration detection unit, so as to adjust the concentration of oxygen to a target range.

[0011] Optionally, a manual valve, a flow meter, a manual valve, and a sterilizing filter are sequentially arranged between the output end of the first oxygen-enriched storage tank and the input end of the second oxygen-enriched storage tank.

[0012] Optionally, the filtering module includes: a four-stage filter group; the four-stage filter group includes: a CS-level filter, a U-level filter, an S-level filter, and an H-level filter.

[0013] Beneficial effects of the present invention:

[0014] The present invention automatically adjusts the oxygen production concentration in real time by automatically controlling the opening of the first regulating valve, the second regulating valve and the third regulating valve according to the oxygen distribution purity through the control unit, and realizes automatic adjustment and precise control of the distribution in the process of producing oxygen with various purities. No manual intervention is required, thereby reducing operating errors and human errors and improving the efficiency and safety of system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an automatic oxygen gas distribution, regulation and filling device provided in an embodiment of the present invention.

[0016] Explanation of symbols:

[0017] Compressor-1, air buffer tank-2, pressure transmitter-3, safety valve-4, manual valve-5, CS-level filter-6, U-level filter-7, S-level filter-8, H-level filter-9, drying module-10, oxygen and nitrogen separation module-11, first regulating valve-12, second regulating valve-13, third regulating valve-14, first oxygen-enriched storage tank-15, second oxygen-enriched storage tank-16, analyzer-17, flow meter-18, sterilizing filter-19, oxygen-enriched booster-20, gas equipment-21, gas distribution bag-22, emission silencer-23, sampling port-24. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all 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.

[0019] Figure 1 FIG. 1 is a schematic diagram of the structure of an automatic oxygen distribution, regulating and filling device provided by an embodiment of the present invention. Figure 1 As shown, the device comprises:

[0020] A compressed air source unit, used for compressing air;

[0021] Specifically, the compressed air source unit includes:

[0022] Compressor 1 is used to compress air; it is used to compress air to a higher pressure and provide a continuous supply of high-pressure gas. Compressor 1 is the air source provider for the entire system, ensuring that subsequent processing can proceed smoothly.

[0023] An air buffer tank 2, the input end of which is connected to the output end of the compressor 1, for storing compressed air.

[0024] The function of the air buffer tank 2 is to store the compressed air from the compressor 1 to reduce the pressure fluctuation caused by the start and stop of the compressor 1 and provide a stable air supply. The buffer tank enables the system to maintain a stable output pressure during the peak period of gas demand.

[0025] Furthermore, the air buffer tank 2 is connected to a pressure transmitter 3, which is used to monitor the air pressure in the air buffer tank 2 in real time and transmit the pressure data to the control unit. The control unit can determine whether the gas system is in a normal working pressure range based on the information fed back by the pressure transmitter 3, and ensure stable operation of the system.

[0026] Furthermore, the air buffer tank 2 is connected to the safety valve 4, which is mainly used to automatically open the exhaust when the air pressure exceeds the set safety threshold to release excess gas to prevent the air buffer tank 2 or the system from being damaged due to excessive pressure. The safety valve 4 ensures that the air pressure does not exceed the designed safety range of the equipment to prevent safety hazards caused by excessive pressure.

[0027] A gas pre-processing unit, the input end of which is connected to the output end of the compressed air source unit, and is used to pre-process the compressed air;

[0028] Specifically, the gas pre-treatment unit includes: a filtering module and a drying module 10;

[0029] The input end of the filter module is connected to the output end of the air buffer tank 2;

[0030] The output end of the filter module is connected to the first input end of the drying module 10 .

[0031] Specifically, the filtering module includes: a four-stage filter group;

[0032] The four-stage filter group includes: a CS-stage filter 6 , a U-stage filter 7 , an S-stage filter 8 , and an H-stage filter 9 .

[0033] CS grade filter 6: used for coarse filtration to remove larger particles in the air, such as dust;

[0034] U-grade filter 7: used to remove medium particles and ensure the removal of impurities in the air;

[0035] S-level filter 8: used for precision filtration, removal of smaller particles, and ensuring higher gas purity;

[0036] H-grade filter 9: used for high-precision filtration to further remove impurities such as tiny particles and oil mist, ensuring that the air quality reaches the highest standards.

[0037] The drying module 10 is used to remove moisture from the air to prevent moisture from affecting subsequent oxygen separation, storage and transportation. The drying module 10 ensures the dryness of the gas in the system to prevent equipment damage or reduced separation efficiency due to excessive moisture.

[0038] An oxygen-nitrogen separation unit, the oxygen-nitrogen separation unit comprising: an oxygen-nitrogen separation module 11, a first oxygen-enriched storage tank 15 and a second oxygen-enriched storage tank 16;

[0039] The first output end of the gas pretreatment unit is connected to the input end of the first oxygen-enriched storage tank 15 through the first regulating valve 12; the first output end of the oxygen-nitrogen separation module 11 is connected to the input end of the first oxygen-enriched storage tank 15 through the second regulating valve 13, and the second output end of the oxygen-nitrogen separation module 11 is connected to the input end of the gas separation bag 22 through the third regulating valve 14; the output end of the first oxygen-enriched storage tank 15 is connected to the input end of the second oxygen-enriched storage tank 16;

[0040] Furthermore, the second input end of the drying module 10 is connected to the first output end of the gas distribution bag 22 through a manual valve 5 for reabsorbent nitrogen;

[0041] The first output end of the drying module 10 is connected to the input end of the first oxygen-enriched storage tank 15 through the first regulating valve 12;

[0042] The second output end of the drying module 10 is connected to the input end of the oxygen-nitrogen separation module 11 .

[0043] Specifically, nitrogen and oxygen in the air are separated by the oxygen-nitrogen separation module 11 , the separated oxygen-enriched gas is stored in the first oxygen-enriched storage tank 15 , and the separated nitrogen is transported to the gas separation bag 22 .

[0044] The first output end of the gas separation bag 22 is connected to the second input end of the drying module 10, so that the function of nitrogen reabsorption can be realized, that is, nitrogen is recovered from the gas separation bag 22, and the gas inside the drying module 10 is reused to reduce energy waste.

[0045] The second output end of the gas separation bag 22 is connected to the exhaust silencer 23 for outputting nitrogen; specifically, the nitrogen is discharged through the silencer, which reduces the noise during the exhaust process and avoids interference with the environment during gas exhaust.

[0046] The third output end of the gas separation bag 22 is a sampling port 24 for taking out the nitrogen in the gas separation bag 22 .

[0047] The oxygen automatic gas distribution, regulation and filling device also includes:

[0048] A concentration detection unit, used to detect the concentration of nitrogen taken out from the sampling port 24;

[0049] A control unit, the control unit is electrically connected to the first regulating valve 12, the second regulating valve 13, and the third regulating valve 14, and is used to automatically control the opening of the first regulating valve 12, the second regulating valve 13, and the third regulating valve 14 according to the oxygen distribution purity;

[0050] Furthermore, the control unit is electrically connected to the concentration detection unit, and is used to control the opening of the first regulating valve 12, the second regulating valve 13, and the third regulating valve 14 according to the concentration of nitrogen measured by the concentration detection unit, so as to adjust the concentration of oxygen to a target range.

[0051] In the air, the concentrations of oxygen and nitrogen are usually opposite to each other. If we know the concentration of nitrogen, we can get the concentration of oxygen by reverse calculation. According to the concentration of nitrogen measured by the concentration detection unit, the concentration of oxygen can be known, and then the control unit controls the opening of the first regulating valve 12, the second regulating valve 13, and the third regulating valve 14 to adjust the concentration of oxygen to the target range.

[0052] The purity of the filled oxygen can be accurately and stably adjusted within the range of 30% to 40% according to the setting, with an adjustment accuracy of ±1%, that is, 30%, 31%, 32%...40% can be adjusted arbitrarily; the control unit adjusts the opening of the first regulating valve 12, the second regulating valve 13, and the third regulating valve 14 to ensure that the oxygen concentration is accurately adjusted within the range of 30% to 40%;

[0053] The first oxygen-enriched storage tank 15 is connected to an analyzer 17, and the main function of the analyzer 17 is to monitor the oxygen concentration in the first oxygen-enriched storage tank 15 in real time to ensure that it meets the predetermined standard. The analyzer 17 can accurately measure the purity of oxygen and feed back the detection results to the control unit so that the control unit can automatically adjust based on the current oxygen concentration.

[0054] Since the oxygen concentration in the first oxygen-enriched storage tank 15 is affected by the regulating valve in real time, the gas concentration is in an unstable state. Therefore, in order to overcome the problem of unstable oxygen concentration in the first oxygen-enriched storage tank 15, a second oxygen-enriched storage tank 16 is provided. The second oxygen-enriched storage tank 16 can buffer such fluctuations and ensure stable gas supply quality.

[0055] Furthermore, a manual valve 5 , a flow meter 18 , a manual valve 5 , and a sterilizing filter 19 are sequentially arranged between the output end of the first oxygen-enriched storage tank 15 and the input end of the second oxygen-enriched storage tank 16 .

[0056] Manual valve 5, flow meter 18, manual valve 5, sterilizing filter 19: These components are sequentially installed between the output end of the first oxygen-enriched storage tank 15 and the input end of the second oxygen-enriched storage tank 16, and are used to control the gas flow, monitor the gas flow, and ensure the purity of the gas when it flows into the second oxygen-enriched storage tank 16. The manual valve 5 is used to manually adjust the gas flow, the flow meter 18 is used to accurately measure the flow, and the sterilizing filter 19 is used to remove bacteria in the air to ensure that the oxygen in the system is pure and uncontaminated.

[0057] In an optional embodiment, the bottom ends of the air buffer tank 2, the first oxygen-enriched storage tank 15, and the second oxygen-enriched storage tank 16 are provided with drain ports for regularly removing sediment and impurities in the storage tanks to keep the gas storage system clean and running stably.

[0058] an oxygen pressurizing unit, wherein an input end of the oxygen pressurizing unit is connected to an output end of the second oxygen-enriched storage tank 16;

[0059] The stored oxygen-rich gas is pressurized to increase the gas pressure to ensure that the oxygen can be delivered to the downstream equipment at an appropriate pressure. Specifically, the oxygen pressurization unit is an oxygen-rich booster 20, which can pressurize the gas to 30 MPa.

[0060] The output unit has an input end connected to the output end of the oxygen pressurizing unit, and the output end is used to transport the pressurized oxygen to various gas equipment 21.

[0061] The various types of gas equipment 21 include but are not limited to boat-mounted breathing cylinders, self-contained breathing apparatus, escape breathing apparatus, conventional diving cylinders, medical cabins, etc.

[0062] Beneficial effects of the present invention:

[0063] Stabilize oxygen concentration: By setting up multiple storage tanks, regulating valves and concentration detection units, the present invention can accurately adjust and stably control the oxygen concentration to ensure that the oxygen concentration output by the system always remains within the set range. Improve system reliability: The setting of the second oxygen-enriched storage tank 16 effectively alleviates the problem of oxygen concentration fluctuations in the first oxygen-enriched storage tank 15 and improves the stability of the gas supply. Accurate airflow control: Through the configuration of the flow meter 18 and the manual valve 5, the system can accurately adjust the gas flow rate to ensure that the gas supply in each link meets the requirements. Ensure gas quality: The sterilizing filter 19 effectively removes impurities in the gas, ensures the purity of the output gas, and meets high-standard application requirements. Enhance operational flexibility: The design of the manual valve 5 provides operational flexibility, facilitates system adjustment, maintenance and troubleshooting, and ensures efficient operation of the system. Intelligent control: The cooperation between the concentration detection unit and the control unit enables the oxygen concentration to be automatically adjusted, reduces manual intervention, and improves the level of automation.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oxygen automatic gas distribution, regulation and filling device, characterized in that: include: A compressed air source unit, used for compressing air; A gas pre-processing unit, the input end of which is connected to the output end of the compressed air source unit, and is used to pre-process the compressed air; An oxygen-nitrogen separation unit, the oxygen-nitrogen separation unit comprising: an oxygen-nitrogen separation module, a first oxygen-enriched storage tank and a second oxygen-enriched storage tank; The first output end of the gas pretreatment unit is connected to the input end of the first oxygen-enriched storage tank through a first regulating valve; the first output end of the oxygen-nitrogen separation module is connected to the input end of the first oxygen-enriched storage tank through a second regulating valve, and the second output end of the oxygen-nitrogen separation module is connected to the input end of the gas separation bag through a third regulating valve; the output end of the first oxygen-enriched storage tank is connected to the input end of the second oxygen-enriched storage tank; A control unit, the control unit is electrically connected to the first regulating valve, the second regulating valve, and the third regulating valve, and is used to automatically control the opening of the first regulating valve, the second regulating valve, and the third regulating valve according to the oxygen distribution purity; an oxygen pressurizing unit, wherein an input end of the oxygen pressurizing unit is connected to an output end of the second oxygen-enriched storage tank; The output unit has an input end connected to the output end of the oxygen boosting unit, and the output end is used to transport the pressurized oxygen to various gas equipment.

2. The device according to claim 1, characterized in that: The compressed air source unit comprises: A compressor, used to compress the air; An air buffer tank, the input end of which is connected to the output end of the compressor, and is used to store compressed air.

3. The device according to claim 2, characterized in that: The gas pre-treatment unit comprises: a filtering module and a drying module; The input end of the filter module is connected to the output end of the air buffer tank; The output end of the filter module is connected to the first input end of the drying module.

4. The device according to claim 3, characterized in that: The second input end of the drying module is connected to the first output end of the gas distribution bag through a manual valve for back-absorbing nitrogen; The first output end of the drying module is connected to the input end of the first oxygen-enriched storage tank through a first regulating valve; The second output end of the drying module is connected to the input end of the oxygen-nitrogen separation module.

5. The device according to claim 1, characterized in that: The second output end of the gas distribution bag is connected to the exhaust muffler for outputting nitrogen; The third output end of the gas separation bag is a sampling port.

6. The device according to claim 5, characterized in that Also includes: A concentration detection unit, used to detect the concentration of nitrogen taken out from the sampling port; The control unit is electrically connected to the concentration detection unit, and is used to control the openings of the first regulating valve, the second regulating valve, and the third regulating valve according to the concentration of nitrogen measured by the concentration detection unit, so as to adjust the concentration of oxygen to a target range.

7. The device according to claim 1, characterized in that: A manual valve, a flow meter, a manual valve, and a sterilizing filter are sequentially arranged between the output end of the first oxygen-enriched storage tank and the input end of the second oxygen-enriched storage tank.

8. The device according to claim 3, characterized in that: The filtering module comprises: a four-stage filter group; The four-stage filter group includes: a CS-stage filter, a U-stage filter, an S-stage filter, and an H-stage filter.

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