CN112169555B - Centrifugal thermal back-blowing dehumidification mechanism of oxygenerator - Google Patents
Centrifugal thermal back-blowing dehumidification mechanism of oxygenerator Download PDFInfo
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- CN112169555B CN112169555B CN202011228905.6A CN202011228905A CN112169555B CN 112169555 B CN112169555 B CN 112169555B CN 202011228905 A CN202011228905 A CN 202011228905A CN 112169555 B CN112169555 B CN 112169555B
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- 238000007664 blowing Methods 0.000 title claims abstract description 47
- 238000007791 dehumidification Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 239000002274 desiccant Substances 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 40
- 238000000926 separation method Methods 0.000 claims abstract description 37
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 9
- 239000012774 insulation material Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 1
- 239000002808 molecular sieve Substances 0.000 description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- 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
-
- 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
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
-
- 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
- B01D53/24—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 centrifugal force
-
- 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
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a centrifugal thermal back-blowing dehumidification mechanism of an oxygen generator, wherein an air inlet is formed in the upper tank wall of a centrifugal separation tank, a gas collector is arranged at the lower part in the centrifugal separation tank, the inlet of a gas outlet pipe is connected with the outlet of the gas collector, a desiccant module is arranged in a ventilating duct, the lower end of the centrifugal separation tank is communicated with the wall of the ventilating duct and corresponds to the desiccant module, a back-blowing through hole is formed in the pipe wall of the gas outlet pipe and is connected with the first end of a back-blowing pipe through the back-blowing through hole, the second end of the back-blowing pipe is communicated with the first end of the ventilating duct, and a heater is arranged outside the back-blowing pipe and is used for heating oxygen in the back-blowing pipe. The centrifugal thermal back-blowing dehumidification mechanism has good dehumidification effect, does not need to place a water storage barrel, saves the following problems of time and labor waste, potential safety hazard and the like caused by water separation, prolongs the service life of the oxygenerator, does not need to be provided with a special interface, is convenient to process and is attractive.
Description
Technical Field
The invention relates to a dehumidifying mechanism of an oxygen generator, in particular to a centrifugal thermal back-blowing dehumidifying mechanism of the oxygen generator.
Background
The oxygen generator adopting the molecular sieve pressure swing adsorption principle generally needs to remove water in compressed air at the front section of the molecular sieve, otherwise, after the molecular sieve absorbs water in air, the molecular sieve strength can be reduced, and under the alternate change of the internal pressure of the molecular sieve cylinder, the molecular sieve can be rapidly powdered, so that the service life of the oxygen generator is greatly shortened. Meanwhile, when the water content of the produced oxygen is high, corrosion damage can be caused to the inner wall of the gas storage steel cylinder.
In addition, for medical oxygen produced by a small-sized oxygen generator, the national standard has strict standards on the moisture content in the produced oxygen, so that the removal of the moisture in the compressed air is very necessary in the oxygen production process.
For general oxygenerator, can use the cold drier to remove water, but the cold drier is relatively big, only the large-scale molecular sieve center oxygen generation system can be supporting to have the cold drier after again pass through the drier and adsorb the dewatering, and domestic or medical small-size molecular sieve oxygenerator then directly uses the adsorbent to adsorb the dewatering mode. However, the direct adsorption type water removal mode cannot continue adsorption after adsorption saturation, so that the service life of the water removal device can be obviously reduced in areas with high humidity. The water removal is also called dehumidification, and the effect is the same, and the moisture content in oxygen is not high, so the industry is generally called dehumidification, and all matters below adopt dehumidification to replace water removal.
In the case of small molecular sieve oxygenerator for household or medical use, there is a centrifugal dehumidifying method, i.e. compressed air is filled into a centrifugal separating tank, and because the water content in the air is greater than the water content in the air itself, the water will adhere to the inner wall of the centrifugal separating tank and flow down along the inner wall, and then flow into a water storage tank.
The conventional centrifugal dehumidification method avoids the problem that the adsorbent cannot continuously adsorb water after saturation, but has the following defects: on one hand, the water storage tank needs to be connected below the centrifugal separation tank, so that not only can space be occupied, but also a special interface is needed for matching, the processing difficulty is increased, and the attractiveness is influenced; on the other hand, more importantly, the water storage tank needs to be taken out and poured out when the water storage tank is nearly full, so that time and labor are wasted, water in the water storage tank is easy to overflow due to forgetting or advanced water filling, equipment is damaged due to corrosion, safety accidents are caused due to electric leakage, and the like.
Disclosure of Invention
The invention aims to solve the problems and provide a centrifugal thermal back-flushing dehumidification mechanism of an oxygen generator, which can centrifugally separate and dehumidify and does not need to manually solve the problem of separating water.
The invention realizes the above purpose through the following technical scheme:
The centrifugal thermal back-blowing dehumidification mechanism of the oxygenerator comprises a centrifugal separation tank, a gas collector and a gas outlet pipe, wherein an air inlet is formed in the wall of the upper portion of the centrifugal separation tank, the gas collector is arranged at the lower portion of the centrifugal separation tank and is used for collecting dry air separated from moisture, the inlet of the gas outlet pipe is connected with the outlet of the gas collector, the centrifugal thermal back-blowing dehumidification mechanism of the oxygenerator further comprises a drying agent module, a gas guide cylinder, a back-blowing pipe and a heater, the drying agent module is arranged in the gas guide cylinder, the lower end of the centrifugal separation tank is connected with the wall of the gas guide cylinder in a communicating manner and corresponds to the drying agent module, a back-blowing through hole is formed in the wall of the gas outlet pipe and is connected with the first end of the back-blowing pipe through the back-blowing through hole, the second end of the back-blowing pipe is connected with the first end of the gas guide cylinder in a communicating manner, the second end of the gas guide cylinder is used as the air outlet of air on the drying agent module, and the heater is arranged outside the back-blowing pipe and is used for heating the air in the back-blowing pipe.
In the structure, the drying agent module is used for absorbing the water separated in the centrifugal separation tank; the air duct is used for placing the drying agent module and directionally discharging the air taking away the moisture on the drying agent module to the outside of the device; the back blowing pipe is used for blowing a small air diversion part in the air outlet pipe on the drying agent module to timely discharge water out of the device through the air duct; the heater is used for heating the air in the back blowing pipe to form hot air, so that the moisture on the desiccant module can be discharged more efficiently and timely.
Further, in order to prevent heat of the heater from damaging the air outlet pipe or heating air in the air outlet pipe, a heat insulating material is arranged at the position closest to the position between the heater and the air outlet pipe.
Specifically, the heat insulating material is heat insulating cotton.
Further, in order to avoid the effect that moisture in the centrifugal separation tank flows onto the drying agent module at a certain stage rapidly to form moisture transition concentration and is difficult to discharge in time, the lower end of the centrifugal separation tank is communicated with the air duct through a bending damping pipe, the bending damping pipe is a pipe which is bent for at least one time by more than 180 degrees and has an inner diameter smaller than 1cm, and an outlet of the bending damping pipe is completely arranged in a region where the drying machine module is located.
In particular, the desiccant module is a desiccant bag, a desiccant mesh or a desiccant bore cartridge containing a desiccant.
Preferably, in order to reduce the amount of blowback air and at the same time to increase the efficiency of draining the desiccant module of moisture, the first end of the air duct is flared and the small end thereof is connected to the blowback pipe.
Preferably, for convenience and rapidness in heating, the heater is an electric heating pipe and is sleeved outside the back-blowing pipe.
Preferably, in order to facilitate efficient collection of air, the gas collector is a funnel with a large top and a small bottom.
The invention has the beneficial effects that:
According to the invention, the desiccant module, the air duct, the back blowing pipe and the heater are added on the basis of the traditional separation dehumidification mechanism, separated water is drained to the desiccant module in real time, and the water on the desiccant module is discharged out of the equipment in real time by splitting air in a small part of air outlet pipes to form hot air, so that the novel oxygen generator has a good dehumidification effect, does not need to place a water storage bucket, does not need to pour water in the water storage bucket at regular time or at irregular time, saves the time and labor consumption, potential safety hazard and other problems caused by subsequent manual solution of separating water, prolongs the service life of the oxygen generator, does not need to be provided with a special interface, is convenient to process and is attractive.
Drawings
Fig. 1 is a schematic diagram of a front view of a centrifugal thermal blowback dehumidifying mechanism of an oxygenerator according to the present invention, showing an internal structure.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in figure 1, the centrifugal thermal back-blowing dehumidification mechanism of the oxygenerator comprises a centrifugal separation tank 3, a gas collector 4, a gas outlet pipe 5, a desiccant module 12, a gas duct 13, a back-blowing pipe 9 and a heater 8, wherein an air inlet 1 is formed in the upper tank wall of the centrifugal separation tank 3, the gas collector 4 is arranged at the lower part in the centrifugal separation tank 3 and is used for collecting dry air separated from moisture, the inlet of the gas outlet pipe 5 is connected with the outlet of the gas collector 4, the desiccant module 12 is arranged in the gas duct 13, the lower end of the centrifugal separation tank 3 is communicated with the wall of the gas duct 13 and corresponds to the desiccant module 12, a back-blowing through hole is formed in the wall of the gas outlet pipe 5 and is connected with the first end of the back-blowing pipe 9, the second end of the back-blowing pipe 9 is communicated with the first end of the gas duct 13, the second end of the gas duct 13 serves as an air outlet for taking away the moisture on the desiccant module 12, and the heater 8 is arranged outside the back-blowing pipe 9 and is used for heating the air in the back-blowing pipe 9. Preferably, a heat insulation material 6 is arranged at the position closest to the position between the heater 8 and the air outlet pipe 5, and the heat insulation material 6 is preferably heat insulation cotton; the lower end of the centrifugal separation tank 3 is communicated with the air duct 13 through a bending damping pipe 10, the bending damping pipe 10 is a pipeline which is bent for at least one time (twice in the figure) more than 180 degrees and has an inner diameter less than 1cm, and the outlet of the bending damping pipe 10 is completely arranged in the area where the dryer module 12 is positioned; the desiccant module 12 is a desiccant bag, a desiccant mesh, or a desiccant porous cartridge (i.e., a cartridge with a plurality of through holes) that houses a desiccant; the first end of the air duct 13 is a horn mouth 11, and the small end of the air duct 13 is connected with the back blowing pipe 9; the heater 8 is an electric heating pipe and is sleeved outside the back-blowing pipe 9; the gas collector 4 is a funnel with a large upper part and a small lower part.
As shown in fig. 1, the centrifugal separation tank 3, the gas collector 4, the bending damper pipe 10, the desiccant module 12 and the air duct 13 together form a centrifugal separation drainage module 2, the heater 8, the heat insulation material 6, the corresponding gas outlet pipe 5 and the back blowing pipe 9 together form an air diversion heating module 7, and the oxygenerator also comprises other modules, such as an oxygen generation module, a compression module and the like, but the innovation of the invention focuses on the two modules of the centrifugal separation drainage module 2 and the air diversion heating module 7, so other modules are not shown in the figure.
As shown in fig. 1, the centrifugal thermal back-blowing dehumidifying mechanism of the oxygenerator of the invention has the following working principle:
Air for oxygen production is pressurized by a compressor to obtain high-pressure air, the high-pressure air enters the centrifugal separation tank 3 after being cooled, and under the action of different centrifugal forces of the air and the water, the water adheres to the inner wall of the centrifugal separation tank 3 and descends under the action of gravity. The separated air enters the gas collector 4 and then enters the gas outlet pipe 5. The separated moisture is reduced in moisture falling speed by the curved damper pipe 10 under the action of gravity and is finally absorbed by the desiccant in the desiccant module 12. Most of the air in the air outlet pipe 5 is sent to the oxygen making module through the outlet of the air outlet pipe 5, the small part enters the back blowing pipe 9, is heated by the heater 8 and enters the bell mouth 11 of the air duct 13, and is blown to the second end from the first end in the air duct 13, and under the flowing action of hot air, the moisture absorbed in the drying agent module 12 is carried out of the equipment in real time, so that safety accidents such as equipment corrosion damage or electric leakage are avoided.
Description: in the centrifugal separation process, the centrifugal force of the air in the centrifugal separation tank 3 is generally achieved by obliquely feeding the high-pressure air into the centrifugal separation tank 3 to enable the air to flow along the inner wall of the centrifugal separation tank 3 to form a rotational flow, so that the centrifugal separation effect of water and air is achieved, the water flows down through a small gap between the air inlet of the gas collector 4 and the inner wall of the centrifugal separation tank 3, and most of the air enters the gas collector 4 through the air inlet of the gas collector 4. According to actual needs, the swirling effect of the high-pressure air can also be realized by an air swirler arranged outside the centrifugal separation tank 3, and the air swirler is conventional application equipment; or spiral drainage grooves or drainage convex strips can be arranged on the inner wall of the centrifugal separation tank 3 to realize the air cyclone effect, thereby realizing the purpose of centrifugal separation.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (4)
1. The utility model provides a centrifugal heat blowback dehumidification mechanism of oxygenerator, includes centrifugal separation jar, gas collector and outlet duct, be equipped with air inlet on the upper portion tank wall of centrifugal separation jar, gas collector arranges in the lower part in the centrifugal separation jar and be used for collecting the dry air after breaking away from moisture, the inlet of outlet duct with gas collector's exit linkage, its characterized in that: the centrifugal thermal back-blowing dehumidification mechanism of the oxygenerator further comprises a drying agent module, an air duct, a back-blowing pipe and a heater, wherein the drying agent module is arranged in the air duct, the lower end of the centrifugal separation tank is communicated with the wall of the air duct and corresponds to the drying agent module, a back-blowing through hole is formed in the wall of the air outlet pipe and is connected with the first end of the back-blowing pipe through the back-blowing through hole, the second end of the back-blowing pipe is communicated with the first end of the air duct, the second end of the air duct serves as an air outlet of air for taking away moisture on the drying agent module, and the heater is arranged outside the back-blowing pipe and is used for heating oxygen in the back-blowing pipe; a heat insulation material is arranged at the position closest to the position between the heater and the air outlet pipe; the lower end of the centrifugal separation tank is communicated with the air duct through a bending damping pipe, the bending damping pipe is a pipeline which is bent for at least one time by more than 180 degrees and has an inner diameter smaller than 1cm, and an outlet of the bending damping pipe is completely arranged in a region where the desiccant module is positioned; the first end of the air duct is a horn mouth, and the small end of the air duct is connected with the back-blowing pipe; the gas collector is a funnel with a large upper part and a small lower part.
2. The centrifugal thermal blowback dehumidification mechanism of an oxygen generator of claim 1, wherein: the heat insulation material is heat insulation cotton.
3. The centrifugal thermal blowback dehumidification mechanism of an oxygen generator according to claim 1 or 2, wherein: the drying agent module is a drying bag, a drying net or a drying hole cylinder filled with drying agent.
4. The centrifugal thermal blowback dehumidification mechanism of an oxygen generator according to claim 1 or 2, wherein: the heater is an electric heating pipe and is sleeved outside the back-blowing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228905.6A CN112169555B (en) | 2020-11-06 | 2020-11-06 | Centrifugal thermal back-blowing dehumidification mechanism of oxygenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228905.6A CN112169555B (en) | 2020-11-06 | 2020-11-06 | Centrifugal thermal back-blowing dehumidification mechanism of oxygenerator |
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| Publication Number | Publication Date |
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| CN112169555A CN112169555A (en) | 2021-01-05 |
| CN112169555B true CN112169555B (en) | 2024-05-28 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004009218A1 (en) * | 2002-07-20 | 2004-01-29 | Mann+Hummel Gmbh | Device and method for drying a gas flow |
| CN202015505U (en) * | 2011-03-21 | 2011-10-26 | 浙江盛汇化工有限公司 | Reverse blowing spray drying system |
| CN204848264U (en) * | 2015-07-24 | 2015-12-09 | 张婷 | Oxygenerator sweeps heating apparatus |
| CN110394027A (en) * | 2019-07-23 | 2019-11-01 | 中国石油大学(华东) | The step space division technique that extensive pressure-variable adsorption is coupled with cryogenic separation |
| CN209771773U (en) * | 2019-03-17 | 2019-12-13 | 中山赫朗环保技术有限公司 | Drying device of oxygenerator with drying function |
| CN210710742U (en) * | 2019-10-17 | 2020-06-09 | 成都联帮医疗科技股份有限公司 | Water removal device of small oxygenerator |
| CN213725691U (en) * | 2020-11-06 | 2021-07-20 | 中国人民解放军空军军医大学 | Centrifugal hot back-blowing dehumidification mechanism of oxygenerator |
-
2020
- 2020-11-06 CN CN202011228905.6A patent/CN112169555B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004009218A1 (en) * | 2002-07-20 | 2004-01-29 | Mann+Hummel Gmbh | Device and method for drying a gas flow |
| CN202015505U (en) * | 2011-03-21 | 2011-10-26 | 浙江盛汇化工有限公司 | Reverse blowing spray drying system |
| CN204848264U (en) * | 2015-07-24 | 2015-12-09 | 张婷 | Oxygenerator sweeps heating apparatus |
| CN209771773U (en) * | 2019-03-17 | 2019-12-13 | 中山赫朗环保技术有限公司 | Drying device of oxygenerator with drying function |
| CN110394027A (en) * | 2019-07-23 | 2019-11-01 | 中国石油大学(华东) | The step space division technique that extensive pressure-variable adsorption is coupled with cryogenic separation |
| CN210710742U (en) * | 2019-10-17 | 2020-06-09 | 成都联帮医疗科技股份有限公司 | Water removal device of small oxygenerator |
| CN213725691U (en) * | 2020-11-06 | 2021-07-20 | 中国人民解放军空军军医大学 | Centrifugal hot back-blowing dehumidification mechanism of oxygenerator |
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| CN112169555A (en) | 2021-01-05 |
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