Clean oxygen generation system

Abstract

The utility model relates to the field of oxygen production equipment, in particular to a clean oxygen production system which comprises an air supply device, a gas-liquid separator, a first filtering device, a refrigeration type drying machine, a second filtering device, an oil remover, an oxygen production device and an oxygen monitoring device which are communicated in sequence, and the air supply device is used for supplying air to the gas-liquid separator; the gas-liquid separator can remove moisture in air, and the first filtering device filters the air entering the refrigerated dryer, so that the dust content of the air entering the refrigerated dryer is reduced, the situation that the heat dissipation efficiency is affected by dust deposition in the refrigerated dryer is avoided, the cleanliness of the oxygen generation system is improved, and the oxygen generation system is suitable for being popularized and used. The oil remover can remove oil gas of air entering the oxygen generation device, the oxygen monitoring device is used for monitoring the concentration of oxygen generated by the oxygen generation device, and operators can conveniently know the working condition of the clean oxygen generation system.

Description

Technical Field

[0001] The utility model relates to the field of oxygen generation equipment, and particularly relates to a clean oxygen generation system. Background Art

[0002] The working principle of the existing adsorption oxygen generation equipment is as follows: at normal temperature, by using the different adsorption capacities of zeolite molecular sieves for oxygen and nitrogen, increasing the pressure of the adsorption tower, the molecular sieve selectively adsorbs nitrogen in the air; reducing the pressure of the adsorption tower, the molecular sieve desorbs the adsorbed nitrogen, and the adsorption-desorption cycle operation is realized, so that oxygen is enriched at one end of the adsorption tower.

[0003] The utility model patent with the authorization announcement number CN209065416U discloses a low-pressure adsorption oxygen generation device, which includes a gas-liquid separator, a refrigerated dryer, a plurality of filters and an oxygen generation device arranged in sequence. A plurality of filters are all arranged between the refrigerated dryer and the oxygen generation device, and no filter is arranged between the gas-liquid separator and the refrigerated dryer. The gas entering the refrigerated dryer contains more impurities, which will cause impurities to deposit on the surface of the heat exchange components of the refrigerated dryer, reduce the heat exchange efficiency of the heat exchange components, and have an adverse impact on the refrigeration efficiency of the refrigerated dryer; moreover, the impurities deposited on the surface of the heat exchange components will also reduce the cleanliness of the oxygen generation system. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that for the existing oxygen generation system, no filter is arranged in front of the refrigerated dryer, which is not conducive to the efficient operation of the refrigerated dryer and reduces the cleanliness of the oxygen generation system.

[0005] To solve the above technical problem, the utility model provides a clean oxygen generation system, which includes a gas supply device, a gas-liquid separator, a first filtering device, a refrigerated dryer, a second filtering device, an oil remover, an oxygen generation device and an oxygen monitoring device connected in sequence. The gas supply device is used to supply air to the gas-liquid separator, and the oxygen monitoring device is used to monitor the oxygen concentration generated by the oxygen generation device.

[0006] As a preferred scheme, the gas supply device includes an air compressor and a first gas buffer tank, and the air compressor, the first gas buffer tank and the gas-liquid separator are connected in sequence.

[0007] As a preferred scheme, the clean oxygen generation system includes a second gas buffer tank arranged between the oil remover and the oxygen generation device, and the oil remover, the second gas buffer tank and the oxygen generation device are connected in sequence.

[0008] As a preferred scheme, the clean oxygen generation system includes a third filtering device arranged between the oxygen generation device and the oxygen monitoring device;

[0009] The oxygen generation device, the third filtration device, and the oxygen monitoring device are connected in sequence.

[0010] As a preferred solution, the clean oxygen generation system includes an oxygen storage tank disposed between the oxygen generation device and the third filtration device;

[0011] The oxygen generation device, the oxygen storage tank, the third filtration device, and the oxygen monitoring device are connected in sequence.

[0012] As a preferred solution, the third filtration device includes a dust filter and an activated carbon filter;

[0013] The oxygen storage tank, the dust filter, the activated carbon filter, and the oxygen monitoring device are connected in sequence.

[0014] As a preferred solution, the third filtration device further includes a sterilization filter;

[0015] The oxygen storage tank, the dust filter, the activated carbon filter, the sterilization filter, and the oxygen monitoring device are connected in sequence.

[0016] As a preferred solution, the clean oxygen generation system further includes a controller. The oxygen monitoring device includes an oxygen concentration analyzer and an alarm, and both the oxygen concentration analyzer and the alarm are electrically connected to the controller.

[0017] As a preferred solution, the oxygen monitoring device further includes a flow meter, and the flow meter is electrically connected to the controller.

[0018] As a preferred solution, the clean oxygen generation system includes an exhaust gas pipeline, a mixed gas output pipeline, and an oxygen output pipeline;

[0019] The mixed gas output pipeline is connected with a first control valve, and the oxygen output pipeline is connected with a second control valve;

[0020] One end of the exhaust gas pipeline communicates with the oxygen generation device, and both the first control valve and the second control valve are connected to the other end of the exhaust pipe;

[0021] Both the flow meter and the oxygen concentration analyzer are disposed in the exhaust gas pipeline.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] The clean oxygen generation system of the present utility model includes a gas supply device, a gas-liquid separator, a first filtration device, a refrigerated dryer, a second filtration device, an oil remover, an oxygen generation device, and an oxygen monitoring device that are connected in sequence. The gas supply device is used to supply air to the gas-liquid separator. The gas-liquid separator can remove moisture in the air. The first filtration device filters the air entering the refrigerated dryer, reducing the dust content of the air entering the refrigerated dryer, avoiding the influence of dust deposition on the heat dissipation efficiency in the refrigerated dryer, and improving the cleanliness of the oxygen generation system. The oil remover can remove oil and gas in the air entering the oxygen generation device. The oxygen monitoring device is used to monitor the oxygen concentration generated by the oxygen generation device, facilitating the operator to know the working condition of the clean oxygen generation system. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the clean oxygen generation system of the present utility model;

[0025] In the figure, 1. Gas supply device, 11. Air compressor, 12. First gas buffer tank, 2. Gas-liquid separator, 3. First filtration device, 4. Refrigerated dryer, 5. Second filtration device, 6. Oil remover, 7. Oxygen generation device, 8. Oxygen monitoring device, 81. Oxygen concentration analyzer, 82. Flowmeter, 91. Second gas buffer tank, 92. Third filtration device, 921. Dust filter, 922. Activated carbon filter, 923. Bacteria removal filter, 93. Oxygen storage tank, 94. Exhaust pipeline, 95. Mixed gas output pipeline, 96. Oxygen output pipeline, 97. First control valve, 98. Second control valve. Detailed Embodiments

[0026] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. It should be understood that the present utility model uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.

[0028] AsFigure 1 As shown in Figure 1 , a preferred embodiment of the clean oxygen generation system of the present utility model includes a gas supply device 1, a gas-liquid separator 2, a first filtration device 3, a refrigerated dryer 4, a second filtration device 5, an oil remover 6, an oxygen generation device 7, and an oxygen monitoring device 8 that are connected in sequence. The gas supply device 1 is used to supply air to the gas-liquid separator 2, and the oxygen monitoring device 8 is used to monitor the oxygen concentration of the oxygen generated by the oxygen generation device 7. The gas-liquid separator 2 can remove moisture in the air. The first filtration device 3 filters the air entering the refrigerated dryer 4, reducing the dust content of the air entering the refrigerated dryer 4 and avoiding the influence of dust deposition in the refrigerated dryer 4 on the heat dissipation efficiency. The oil remover 6 can remove the oil and gas in the air entering the oxygen generation device 7, and the oxygen monitoring device 8 is used to monitor the oxygen concentration of the oxygen generated by the oxygen generation device 7, facilitating the operator to know the working condition of the clean oxygen generation system.

[0029] Among them, the filtration accuracy of the first filtration device 3 is 5 microns, and particulate matter larger than 5 microns can be filtered out by the first filtration device 3. The second filtration device 5 includes two filters arranged in series, and the accuracies of the two filters are 0.1 micron and 0.01 micron respectively, so as to ensure the cleanliness of the compressed air entering the oxygen generation device 7 and avoid the adsorption unit of the oxygen generation device 7 from being blocked by impurities.

[0030] In this embodiment, the gas supply device 1 includes an air compressor 11 and a first gas buffer tank 12, and the air compressor 11, the first gas buffer tank 12, and the gas-liquid separator 2 are connected in sequence. The air compressor 11 pressurizes the air into compressed air, and the compressed air generated by the air compressor 11 flows into the first gas buffer tank 12. In addition to stabilizing the air pressure of the compressed air, the first gas buffer tank 12 can also cool the compressed air with a relatively high temperature. The cooling process of the compressed air can initially discharge the moisture in the compressed air. The compressed gas flowing out of the first gas buffer tank 12 enters the gas-liquid separator 2. The gas-liquid separator 2 is a mechanical water removal device used to remove large particles of impurities and water molecules, reducing the burden on the refrigerated dryer and the subsequent second filtration device 5.

[0031] In this embodiment, the clean oxygen generation system includes a second gas buffer tank 91 arranged between the oil remover 6 and the oxygen generation device 7, and the oil remover 6, the second gas buffer tank 91, and the oxygen generation device 7 are connected in sequence. The second gas buffer tank 91 is used to stabilize the pressure of the compressed air before entering the oxygen generation device 7, ensuring the stable operation of the oxygen generation device 7. Both the first air buffer tank and the second air buffer tank are equipped with safety valves, pressure gauges, and drain valves for discharging the accumulated water in the buffer tank.

[0032] In this embodiment, the clean oxygen generation system includes a third filtration device 92 disposed between the oxygen generation device 7 and the oxygen monitoring device 8; the oxygen generation device 7, the third filtration device 92, and the oxygen monitoring device 8 are connected in sequence. The third filtration device 92 can filter the oxygen generated by the oxygen generation device 7 to remove impurities in the oxygen and ensure the oxygen quality.

[0033] Specifically, the third filtration device 92 includes a dust filter 921 and an activated carbon filter 922; the dust removal filter can filter particulate matter in the oxygen, and the activated carbon filter 922 can adsorb odors. To ensure the sterility of the oxygen, in this embodiment, the third filtration device 92 further includes a sterilization filter 923; the oxygen storage tank 93, the dust filter 921, the activated carbon filter 922, the sterilization filter 923, and the oxygen monitoring device 8 are connected in sequence. The outer shell of the sterilization filter 923 is made of stainless steel, and the filter element of the sterilization filter 923 is composed of a molecular biological microfiber mesh and borosilicate, which can directly filter out bacteria and prevent the growth of bacteria, obtaining sterile and pure qualified oxygen.

[0034] Furthermore, the clean oxygen generation system includes an oxygen storage tank 93 disposed between the oxygen generation device 7 and the third filtration device 92; the oxygen generation device 7, the oxygen storage tank 93, the third filtration device 92, and the oxygen monitoring device 8 are connected in sequence. The oxygen storage tank 93 can temporarily store the oxygen generated by the oxygen generation device 7.

[0035] Specifically, the clean oxygen generation system further includes a controller. The oxygen monitoring device 8 includes an oxygen concentration analyzer 81 and an alarm, and both the oxygen concentration analyzer 81 and the alarm are electrically connected to the controller. When the oxygen concentration analyzer 81 detects that the oxygen concentration is lower than the set value, the oxygen concentration analyzer 81 sends an electrical signal to the controller. After receiving the above electrical signal, the controller sends an electrical signal to the alarm to make the alarm sound, so that the operator can timely know the oxygen concentration information of the oxygen generated by the clean oxygen generation system.

[0036] To facilitate the operator to timely know the oxygen flow information of the oxygen generated by the clean oxygen generation system, in this embodiment, the oxygen monitoring device 8 further includes a flow meter 82, and the flow meter 82 is electrically connected to the controller.

[0037] In this embodiment, the oxygen generation device 7 includes two adsorption towers that work alternately. The adsorption towers are filled with zeolite molecular sieves and a regulating pipeline for regulating the alternate operation of the two adsorption towers. According to the different adsorption capacities of zeolite molecular sieves for nitrogen in the air, nitrogen-oxygen separation is achieved during the pressurized adsorption and depressurized desorption processes. The two adsorption towers work alternately to continuously produce oxygen and discharge waste gas.

[0038] In this embodiment, the clean oxygen generation system further includes a sewage discharge pipeline, and the drain outlet of the first gas buffer tank 12, the sewage discharge outlet of the gas-liquid separator, the sewage discharge outlet of the first filtering device, and the sewage discharge outlet of the second filtering device are all communicated with the sewage discharge pipeline.

[0039] In this embodiment, the clean oxygen generation system includes an exhaust gas pipeline 94, a mixed gas output pipeline 95, and an oxygen output pipeline 96;

[0040] The mixed gas output pipeline 95 is connected with a first control valve 97, and the oxygen output pipeline 96 is connected with a second control valve 98;

[0041] One end of the exhaust gas pipeline 94 is communicated with the oxygen generation device 7. In this embodiment, one end of the exhaust gas pipeline 94 is connected to the oxygen storage tank 93, and both the first control valve 97 and the second control valve 98 are connected to the other end of the exhaust pipe;

[0042] The flowmeter 82 and the oxygen concentration analyzer 81 are both arranged in the exhaust gas pipeline 94.

[0043] Specifically, at the initial stage of the operation of the clean oxygen generation system, the oxygen generation device 7 needs to discharge the air in the oxygen storage tank 93. At this time, the oxygen concentration of the gas flowing into the exhaust gas pipeline 94 is relatively low, and the oxygen concentration value detected by the oxygen concentration detector is lower than the set value. At this time, the oxygen concentration analyzer 81 sends an electrical signal to the controller, so that the first control valve 97 is opened and the second control valve 98 is closed, and the mixed gas with an oxygen concentration not meeting the requirements is discharged into the mixed gas output pipeline 95; after the oxygen discharged into the oxygen storage tank 93 completely displaces the air in the oxygen storage tank 93, the oxygen concentration value detected by the oxygen concentration detector reaches the set value. At this time, the oxygen concentration analyzer 81 sends an electrical signal to the controller, so that the first control valve 97 is closed and the second control valve 98 is opened, and the oxygen with an oxygen concentration meeting the requirements is discharged into the oxygen output pipeline 96.

[0044] In summary, the clean oxygen generation system of the present utility model includes a gas supply device 1, a gas-liquid separator 2, a first filtering device 3, a refrigerated dryer 4, a second filtering device 5, an oil remover 6, an oxygen generation device 7, and an oxygen monitoring device 8 that are connected in sequence. The gas supply device 1 is used to supply air to the gas-liquid separator 2. The gas-liquid separator 2 can remove moisture in the air. The first filtering device 3 filters the air entering the refrigerated dryer 4, reducing the dust content of the air entering the refrigerated dryer 4 and avoiding the influence of dust deposition in the refrigerated dryer 4 on the heat dissipation efficiency. The oil remover 6 can remove the oil and gas in the air entering the oxygen generation device 7. The oxygen monitoring device 8 is used to monitor the oxygen concentration generated by the oxygen generation device 7, facilitating the operator to know the working condition of the clean oxygen generation system.

[0045] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. A clean oxygen generation system, characterized in that, It includes a gas supply device (1), a gas-liquid separator (2), a first filtration device (3), a refrigerated dryer (4), a second filtration device (5), an oil remover (6), an oxygen generation device (7), and an oxygen monitoring device (8) that are connected in sequence. The gas supply device (1) is used to supply air to the gas-liquid separator (2), and the oxygen monitoring device (8) is used to monitor the oxygen concentration generated by the oxygen generation device (7).

2. The clean oxygen generation system according to claim 1, wherein, The gas supply device (1) includes an air compressor (11) and a first gas buffer tank (12), and the air compressor (11), the first gas buffer tank (12), and the gas-liquid separator (2) are connected in sequence.

3. The clean oxygen generation system according to claim 1, wherein, The clean oxygen generation system includes a second gas buffer tank (91) disposed between the oil remover (6) and the oxygen generation device (7), and the oil remover (6), the second gas buffer tank (91), and the oxygen generation device (7) are connected in sequence.

4. The clean oxygen generation system according to claim 1, wherein, The clean oxygen generation system includes a third filtration device (92) disposed between the oxygen generation device (7) and the oxygen monitoring device (8); The oxygen generation device (7), the third filtration device (92), and the oxygen monitoring device (8) are connected in sequence.

5. The clean oxygen generation system according to claim 4, characterized in that, The clean oxygen generation system includes an oxygen storage tank (93) disposed between the oxygen generation device (7) and the third filtration device (92); The oxygen generation device (7), the oxygen storage tank (93), the third filtration device (92), and the oxygen monitoring device (8) are connected in sequence.

6. The clean oxygen generation system according to claim 5, wherein The third filtration device (92) includes a dust filter (921) and an activated carbon filter (922); The oxygen storage tank (93), the dust filter (921), the activated carbon filter (922), and the oxygen monitoring device (8) are connected in sequence.

7. The clean oxygen generation system according to claim 6, wherein, The third filtration device (92) further includes a sterilization filter (923); The oxygen storage tank (93), the dust filter (921), the activated carbon filter (922), the sterilization filter (923), and the oxygen monitoring device (8) are connected in sequence.

8. The clean oxygen generation system according to claim 1, wherein, The clean oxygen generation system further includes a controller. The oxygen monitoring device (8) includes an oxygen concentration analyzer (81) and an alarm, and both the oxygen concentration analyzer (81) and the alarm are electrically connected to the controller.

9. The clean oxygen generation system according to claim 8, characterized in that, The oxygen monitoring device (8) further includes a flow meter (82), and the flow meter (82) is electrically connected to the controller.

10. The clean oxygen generation system according to claim 9, characterized in that, The clean oxygen generation system includes an exhaust gas pipeline (94), a mixed gas output pipeline (95), and an oxygen output pipeline (96); The mixed gas output pipeline (95) is connected with a first control valve (97), and the oxygen output pipeline (96) is connected with a second control valve (98); One end of the exhaust gas pipeline (94) communicates with the oxygen generation device (7), and both the first control valve (97) and the second control valve (98) are connected to the other end of the exhaust pipe; Both the flow meter (82) and the oxygen concentration analyzer (81) are disposed in the exhaust gas pipeline (94).

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