CN112850650A - Oxygen generating apparatus capable of simultaneously performing oxygen generation and cleaning - Google Patents
Oxygen generating apparatus capable of simultaneously performing oxygen generation and cleaning Download PDFInfo
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- CN112850650A CN112850650A CN201911182456.3A CN201911182456A CN112850650A CN 112850650 A CN112850650 A CN 112850650A CN 201911182456 A CN201911182456 A CN 201911182456A CN 112850650 A CN112850650 A CN 112850650A
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- oxygen
- adsorption
- moisture
- nitrogen
- generating apparatus
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000001301 oxygen Substances 0.000 title claims abstract description 81
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 81
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 238000001179 sorption measurement Methods 0.000 claims abstract description 117
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 32
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 26
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 239000010457 zeolite Substances 0.000 claims abstract description 12
- 239000003463 adsorbent Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- -1 Polypropylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0062—Water
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The present invention relates to an oxygen generation device capable of simultaneously performing generation and cleaning of oxygen, comprising: a pair of adsorption towers, wherein a moisture adsorption layer using a moisture adsorbent is formed at the lower part of the adsorption towers, and a nitrogen adsorption layer using zeolite is formed at the upper part of the moisture adsorption layer; air injection pipes connected to the lower ends of the adsorption towers through valves; oxygen discharge pipes connected to the upper ends of the adsorption towers through valves; nitrogen gas discharge pipes connected to the lower ends of the adsorption towers through valves; and an oxygen supply pipe connected between the pair of oxygen discharge pipes through a valve.
Description
Technical Field
The present invention relates to an oxygen generating apparatus capable of simultaneously performing oxygen generation and cleaning and capable of operating efficiently.
Background
Generally, an oxygen generating apparatus is widely used for domestic use, industrial use, medical use, and the like as an apparatus for separating and concentrating oxygen in the atmosphere.
Among them, the most widely used oxygen generation apparatus is the Pressure Swing Adsorption (hereinafter, abbreviated as PSA) system using an adsorbent called Zeolite (Zeolite). The PSA method is a method of removing nitrogen from air and increasing the concentration of oxygen by using the characteristic that nitrogen, which accounts for about 80% of the atmosphere, is more easily adsorbed to the adsorbent than oxygen at a relatively high pressure.
As an example of the oxygen generating apparatus as described above, there is disclosed in korean registered patent No. 10-1767640 an oxygen generating apparatus comprising: a compressed air supply part for compressing air sucked from the outside and supplying the compressed air; a pressure sensor connected to the compressed air supply unit for detecting the pressure of air compressed therein; an air discharge valve connected to the compressed air supply unit, provided in an air discharge flow path communicating with the outside of the room, and configured to discharge the compressed air to the outside of the room after decompressing the compressed air based on a pressure measurement value detected by the pressure sensor; a nitrogen adsorption unit having an inflow end connected to a discharge end of the compressed air supply unit and including a plurality of adsorption plates for adsorbing nitrogen contained in the compressed air, thereby discharging separated and concentrated oxygen; a membrane part including a moisture separating part connected to an inflow end side of the nitrogen adsorbing part to separate moisture contained in the compressed air according to diffusion and permeation rates, and a water storing part disposed at a lower part of the moisture separating part to store the separated moisture; an air cooling unit which cools the compressed air through being provided at an inflow end side of the membrane unit to condense moisture, and which is provided with a water storage connection flow path connected to the water storage unit to separate the condensed moisture during the cooling process; a moisture discharge valve device which discharges the separated moisture to the outside at a predetermined time interval by being disposed at a lower portion of the thin film part; a main control part for receiving an input of a pressure measurement value of the pressure sensor, controlling driving of the compressed air supply part and the air discharge valve by a loaded power supply, and opening the air discharge valve when the pressure measurement value exceeds a preset pressure reference value to discharge air inside the compressed air supply part to the outside through the air discharge flow path, thereby ensuring supply of compressed air reduced to the pressure reference value or less to the nitrogen adsorption part; a display unit for visually displaying the pressure measurement value input to the main control unit; and a warning display device for displaying a warning message when the pressure measurement value exceeds the pressure reference value for a predetermined time or more.
However, the above-described technology has a problem that it is necessary to stop the operation of the entire apparatus and perform a cleaning process for the nitrogen adsorption part when clogging or the like occurs in the nitrogen adsorption part, and also has a problem that moisture cannot be sufficiently removed from the air.
Prior art documents:
patent document
Korean registered patent No. 10-1767640
Disclosure of Invention
Accordingly, an object of the present invention is to provide an apparatus that can simultaneously perform generation and cleaning of oxygen and can operate efficiently, and also can produce high-purity oxygen by sufficiently removing moisture.
In order to solve the above-described problems, an oxygen generation device (hereinafter, simply referred to as "device to which the present invention is applied") to which the present invention is applied and which can simultaneously perform generation and cleaning of oxygen is characterized by comprising: a pair of adsorption towers, wherein a moisture adsorption layer using a moisture adsorbent is formed at the lower part of the adsorption towers, and a nitrogen adsorption layer using zeolite is formed at the upper part of the moisture adsorption layer; air injection pipes connected to the lower ends of the adsorption towers through valves; oxygen discharge pipes connected to the upper ends of the adsorption towers through valves; nitrogen gas discharge pipes connected to the lower ends of the adsorption towers through valves; and an oxygen supply pipe connected between the pair of oxygen discharge pipes through a valve.
As an embodiment, the present invention is characterized in that: the air injection pipe is provided with a compressor, a cooling plate, and a moisture filter, and the nitrogen gas discharge pipe is provided with a vacuum pump.
As an embodiment, the present invention is characterized in that: in the case where oxygen is generated in one of the adsorption towers and the other adsorption tower is cleaned, air is injected through the air injection pipe and oxygen is discharged through the oxygen discharge pipe only in one adsorption tower, while oxygen is supplied from the upper end of the other adsorption tower through the oxygen supply pipe and the vacuum pump is driven only in the other adsorption tower and nitrogen is discharged through the nitrogen discharge pipe.
As an embodiment, the present invention is characterized in that: the moisture adsorption layer and the nitrogen adsorption layer of the adsorption tower are divided by a gas-liquid separation membrane.
As an embodiment, the present invention is characterized in that: the moisture adsorption layer of the adsorption tower is provided with a heating unit.
As an embodiment, the present invention is characterized in that: the heating section includes: a rotating shaft made of a heat conductive material, provided inside the moisture adsorption layer, and having an electric heating wire mounted therein; the stirring rods are made of heat conductive material and are formed in a plurality on the rotating shaft in a radial projecting manner.
The apparatus to which the present invention is applied as described above can simultaneously perform the generation of oxygen and the cleaning and can operate efficiently.
Furthermore, it is also possible to sufficiently remove moisture during the generation of oxygen, thereby sufficiently adsorbing nitrogen and moisture during the execution of cleaning and thereby sufficiently improving the efficiency of the device.
Drawings
Fig. 1 is a schematic diagram illustrating an apparatus to which the present invention is applied.
Fig. 2 is an operational state diagram illustrating an operational state of the present invention.
Fig. 3 is a schematic diagram illustrating an embodiment of the present invention.
Fig. 4 is an operation state diagram illustrating an embodiment of the heating part in fig. 3.
[ description of symbols ]
1: apparatus suitable for use with the invention
2: adsorption tower
3: air injection pipe
4: oxygen discharge pipe
5: nitrogen gas discharge pipe
6: oxygen supply pipe
Detailed Description
Next, the configuration and operation of the present invention will be described in detail with reference to the drawings. In describing the present invention, terms or words used in the present specification and claims should be interpreted as having meanings and concepts conforming to the technical idea of the present invention in consideration of the principle that the inventor can appropriately define the concept of the terms for the best explanation of his invention.
The apparatus 1 to which the present invention is applied is characterized by comprising: a pair of adsorption towers 2, which are provided with a moisture adsorption layer 21 using a moisture adsorbent at the lower part and a nitrogen adsorption layer 23 using zeolite at the upper part of the moisture adsorption layer 21; air injection pipes 3 connected to the lower ends of the pair of adsorption towers 2 through valves, respectively; oxygen discharge pipes 4 connected to the upper ends of the pair of adsorption towers 2 through valves, respectively; nitrogen gas discharge pipes 5 connected to the lower ends of the pair of adsorption towers 2 through valves, respectively; and an oxygen supply pipe 6 connected between the pair of oxygen discharge pipes through a valve.
That is, the apparatus 1 to which the present invention is applied relates to an oxygen generating apparatus which can simultaneously generate oxygen by a pair of adsorption towers 2 and can simultaneously perform generation and cleaning of oxygen to realize continuous operation.
The adsorption towers 2 are formed in pairs, and as shown in the figure, the adsorption towers are characterized in that: a moisture adsorption layer 21 using a moisture adsorbent is formed on the lower part, and a nitrogen adsorption layer 23 using zeolite is formed on the upper part of the moisture adsorption layer 21.
The type of the moisture adsorbent is not particularly limited, and silica gel can be used as an example.
The above-described moisture adsorption by silica gel and nitrogen adsorption by zeolite belong to known mechanisms of action, and therefore, detailed description thereof will be omitted.
In the present invention, a partitioning means for preventing the silica gel and the zeolite from being mixed with each other is provided between the moisture adsorption layer 21 using the silica gel and the nitrogen adsorption layer 23 using the zeolite, and a case where the gas-liquid separation membrane 22 is applied will be described as an example.
That is, the configuration of the gas-liquid separation membrane 22 ensures that only oxygen and nitrogen, which are gases, can flow into the nitrogen adsorption layer 23 in the air after passing through the moisture adsorption layer 21 in the oxygen production process by means of the gas-liquid separation membrane 22, thereby preventing a problem of a decrease in the nitrogen adsorption capacity due to the inflow of moisture into the nitrogen adsorption layer 23. That is, in addition to moisture adsorption by the moisture adsorption layer 21, the gas-liquid separation membrane 22 can prevent moisture from flowing into the nitrogen adsorption layer 23, thereby increasing the adsorption capacity of zeolite constituting the nitrogen adsorption layer by a factor.
Further, in the cleaning process, when the vacuum pump 54 described below is operated, the nitrogen gas adsorbed by the nitrogen gas adsorption layer 21 is more easily discharged through the nitrogen gas discharge pipe 5 than the moisture adsorbed by the moisture adsorption layer 21 and thus a negative pressure is formed on the nitrogen gas adsorption layer 23, resulting in a phenomenon in which the moisture in the moisture adsorption layer 21 is refluxed to the nitrogen gas adsorption layer 23, and the above-described phenomenon can be prevented by the configuration of the gas-liquid separation membrane 22.
The gas-liquid separation membrane 22 may be made of a known material, and may be selected from polymer materials such as Polypropylene (Polypropylene), Polysulfone (polysulfonene), Polyimide (Polyimide), Polyamide (Polyamide), Polyacrylonitrile (Polyacrylonitrile), and Cellulose (Cellulose).
The air injection pipe 3 is connected to the lower ends of the pair of adsorption towers 2 through valves, respectively, and is provided with a main pipe 31, and is provided with branch pipes 32 connected to the lower ends of the pair of adsorption towers 2 from the main pipe 31 through valves, respectively.
Further, a compressor 33, a cooling plate 34, and a moisture filter 35 may be provided in the main pipe 31 of the air injection pipe 3, compressed air is supplied to the main pipe 31 by the compressor 33, moisture mixed into the air is condensed by cooling the air by the cooling plate 34, and then the air is selectively flowed into the adsorption tower 2 through the respective branch pipes 32 in a state where the moisture in the air is removed by the moisture filter 35 for the 1 st time.
The pair of adsorption towers 2 are respectively provided at upper ends thereof with oxygen discharge pipes 4 connected by valves, and the oxygen discharge pipes 4 include branch pipes 41 connected to the upper ends of the respective adsorption towers 2 by valves and main pipes 42 connected to the respective branch pipes 41. The oxygen gas after the moisture and nitrogen gas are removed by the adsorption tower 2 is discharged to the outside.
The nitrogen gas discharge pipes 5 are connected to the lower ends of the pair of adsorption towers 2 through valves, respectively, for discharging nitrogen gas generated in the cleaning process to the outside. The nitrogen gas discharge pipe 5 includes, as shown in the figure: branch pipes 51 connected to the lower ends of the adsorption towers 2 through valves, respectively; a main pipe 52 connected to each of the branch pipes 51 for discharging nitrogen gas to the outside; and connection pipes 53 connected to the respective branch pipes 51, one end of each of which is connected to a vacuum pump 54.
The oxygen supply pipe 6 is configured to connect the branch pipes 41 between the oxygen discharge pipes 4, i.e., in the oxygen discharge pipes 4, by valves, as shown in fig. 2, for supplying a part of the oxygen produced on the other adsorption tower 2 to the adsorption tower 2 performing the cleaning process. That is, a process for ensuring that the removal of nitrogen gas from zeolite can be easily performed in the adsorption tower 2 performing the cleaning process.
Further, an example in which the oxygen is produced on one adsorption tower 2-1 while the cleaning process is performed on the other adsorption tower 2-2 is illustrated in fig. 2.
In the case as described above, air is injected through the air injection pipe 3 and oxygen is discharged through the oxygen discharge pipe 4 only on one adsorption tower 2-1, while oxygen is supplied from the upper end of the other adsorption tower 2-2 through the above oxygen supply pipe 6 and the above vacuum pump 54 is driven and nitrogen is discharged through the above nitrogen discharge pipe 5 only in the other adsorption tower 2-2.
As shown in the drawing, when air is supplied through the main pipe 31 in the air supply pipe 3, only the branch pipe 32 connected to one adsorption tower 2-1 is opened and the branch pipe 32 connected to the other adsorption tower 2-2 is closed, so that air is injected into only one adsorption tower 2-1. After the moisture and nitrogen in the air injected as described above are removed, the oxygen is discharged through the oxygen discharge pipe 4, and at this time, the oxygen is discharged to the outside through the branch pipe 41 and the main pipe 42 connected to one adsorption tower 2-1 in the oxygen discharge pipe 4. In the above process, a part of the oxygen produced in one adsorption tower 2-1 can be supplied to the other adsorption tower 2-2 through the oxygen supply pipe by opening the valve of the oxygen supply pipe 6.
Simultaneously with the above-described operation mechanism, the vacuum pump 54 is driven and the valve of the branch pipe 51 connected to one adsorption tower 2-1 in the nitrogen gas exhaust pipe 5 is closed and the valve of the branch pipe 51 connected to the other adsorption tower 2-2 is opened, thereby creating a force of sucking in the downward direction on the other adsorption tower 2-2. Under the above-described force, the nitrogen gas adsorbed by the nitrogen adsorption layer 23 in the other adsorption tower 2-2 is desorbed and the desorbed nitrogen gas is discharged to the outside through the branched pipe 51 and the main pipe 52 of the open valve in the other adsorption tower 2-2.
Further, there may be a case where the moisture adsorbing layer 21 is clogged, in which case, as shown in fig. 2, it is difficult to cause the moisture adsorbed in a liquefied state by the driving of the vacuum pump 54 to be dropped off and thus the cleaning efficiency is insufficient, and further, when the vacuum pump 54 is driven in the cleaning process, the nitrogen gas adsorbed by the nitrogen gas adsorbing layer 23 is more easily discharged through the nitrogen gas discharge pipe 5 than the moisture adsorbed by the moisture adsorbing layer 21 and thus a negative pressure is formed in the nitrogen gas adsorbing layer 23, and thus the gas-liquid separation membrane 22 is subjected to an upward-direction pressure, which may cause a problem that the gas-liquid separation membrane is damaged.
Therefore, the present invention provides a configuration in which a heating unit 7 is provided on the moisture adsorption layer 21 of the adsorption tower 2 as shown in fig. 3. That is, by applying heat to the moisture adsorption layer 21 by the heating part 7 in the cleaning process, the nitrogen gas and the moisture can be more easily detached by vaporization of the adsorbed moisture and driving of the vacuum pump 54, thereby preventing the above-described problems from occurring.
The heating unit 7 is provided with a power supply unit 8 for applying heat to the moisture adsorbing layer 21 when power is applied.
Further, in the present invention, a heating portion 7 as shown in fig. 4 is provided. The heating unit 7 to which the present embodiment is applied is characterized by including: a rotating shaft 71 made of a heat conductive material, provided inside the moisture adsorption layer 21, and having a heating wire 711 mounted therein; the stirring rods 72 are made of a heat conductive material, and a plurality of the stirring rods are formed to protrude radially from the rotary shaft 71.
As shown in the drawing, the rotary shaft 71 is composed of a main body 712 having a heating wire 711 mounted therein, and the main body 712 is composed of a heat conductive material. The rotation shaft 71 is connected to a driving unit 9, and when the power supply unit 8 is supplied with power, the rotation shaft 71 rotates to emit heat H by heat generated by the heating wire 711.
The heat H is transmitted to the plurality of stirring rods 72 formed to protrude radially from the rotary shaft 71, and the heat H is uniformly diffused to the moisture adsorbing layer 21 by the heating part 7 configured as described above, and the vaporized moisture is easily released from the silica gel constituting the moisture adsorbing layer 21 by the continuous impact of the heat H and the stirring rods 72. That is, according to the present embodiment, the moisture can be uniformly peeled off from the moisture adsorption layer 21.
From the above description, a worker of the related art can make various changes and modifications without departing from the scope of the technical idea of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.
Claims (6)
1. An oxygen generating apparatus that can simultaneously perform oxygen generation and cleaning, comprising:
a pair of adsorption towers, wherein a moisture adsorption layer using a moisture adsorbent is formed at the lower part of the adsorption towers, and a nitrogen adsorption layer using zeolite is formed at the upper part of the moisture adsorption layer;
air injection pipes connected to the lower ends of the adsorption towers through valves;
oxygen discharge pipes connected to the upper ends of the adsorption towers through valves;
nitrogen gas discharge pipes connected to the lower ends of the adsorption towers through valves; and the number of the first and second groups,
an oxygen supply pipe connected between the pair of oxygen discharge pipes through a valve.
2. The oxygen generating apparatus that can simultaneously perform generation of oxygen and cleaning according to claim 1, characterized in that:
the air injection pipe is provided with a compressor, a cooling plate, and a moisture filter, and the nitrogen gas discharge pipe is provided with a vacuum pump.
3. The oxygen generating apparatus that can simultaneously perform generation of oxygen and cleaning according to claim 2, characterized in that:
in the case where oxygen is generated in one of the adsorption towers and the other adsorption tower is cleaned, air is injected through the air injection pipe and oxygen is discharged through the oxygen discharge pipe only in one adsorption tower, while oxygen is supplied from the upper end of the other adsorption tower through the oxygen supply pipe and the vacuum pump is driven only in the other adsorption tower and nitrogen is discharged through the nitrogen discharge pipe.
4. The oxygen generating apparatus that can simultaneously perform generation of oxygen and cleaning according to claim 1, characterized in that:
the moisture adsorption layer and the nitrogen adsorption layer of the adsorption tower are divided by a gas-liquid separation membrane.
5. The oxygen generating apparatus that can simultaneously perform generation of oxygen and cleaning according to claim 1, characterized in that:
the moisture adsorption layer of the adsorption tower is provided with a heating unit.
6. The oxygen generating apparatus that can simultaneously perform generation of oxygen and cleaning according to claim 5, characterized in that:
the heating section includes: a rotating shaft made of a heat conductive material, provided inside the moisture adsorption layer, and having an electric heating wire mounted therein; the stirring rods are made of heat conductive material and are formed in a plurality on the rotating shaft in a radial projecting manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182456.3A CN112850650A (en) | 2019-11-27 | 2019-11-27 | Oxygen generating apparatus capable of simultaneously performing oxygen generation and cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182456.3A CN112850650A (en) | 2019-11-27 | 2019-11-27 | Oxygen generating apparatus capable of simultaneously performing oxygen generation and cleaning |
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|---|---|
| CN112850650A true CN112850650A (en) | 2021-05-28 |
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| CN201911182456.3A Pending CN112850650A (en) | 2019-11-27 | 2019-11-27 | Oxygen generating apparatus capable of simultaneously performing oxygen generation and cleaning |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10216453A (en) * | 1997-01-30 | 1998-08-18 | Kagaku Gijutsu Shinko Jigyodan | Separation of gas |
| JPH11221423A (en) * | 1998-02-10 | 1999-08-17 | Sanyo Electric Co Ltd | Moisture removing apparatus |
| AU2003255490A1 (en) * | 2002-03-25 | 2003-10-08 | Council Of Scientific And Industrial Research | Process for the preparation of molecular sieve adsorbent for selective adsorption of nitrogen and argon |
| JP2010012367A (en) * | 2008-07-01 | 2010-01-21 | Kyuchaku Gijutsu Kogyo Kk | Oxygen-producing method and oxygen-producing apparatus according to pressure swing adsorption method that employs oxygen-selective adsorbent |
| CN102091499A (en) * | 2011-01-19 | 2011-06-15 | 上海穗杉实业有限公司 | Method and device for separating combined oxygen and nitrogen absorbed together by temperature change |
-
2019
- 2019-11-27 CN CN201911182456.3A patent/CN112850650A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10216453A (en) * | 1997-01-30 | 1998-08-18 | Kagaku Gijutsu Shinko Jigyodan | Separation of gas |
| JPH11221423A (en) * | 1998-02-10 | 1999-08-17 | Sanyo Electric Co Ltd | Moisture removing apparatus |
| AU2003255490A1 (en) * | 2002-03-25 | 2003-10-08 | Council Of Scientific And Industrial Research | Process for the preparation of molecular sieve adsorbent for selective adsorption of nitrogen and argon |
| JP2010012367A (en) * | 2008-07-01 | 2010-01-21 | Kyuchaku Gijutsu Kogyo Kk | Oxygen-producing method and oxygen-producing apparatus according to pressure swing adsorption method that employs oxygen-selective adsorbent |
| CN102091499A (en) * | 2011-01-19 | 2011-06-15 | 上海穗杉实业有限公司 | Method and device for separating combined oxygen and nitrogen absorbed together by temperature change |
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Application publication date: 20210528 |