CN111408235A - Oxygen reduction device and refrigerator - Google Patents
Oxygen reduction device and refrigerator Download PDFInfo
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- CN111408235A CN111408235A CN202010322980.2A CN202010322980A CN111408235A CN 111408235 A CN111408235 A CN 111408235A CN 202010322980 A CN202010322980 A CN 202010322980A CN 111408235 A CN111408235 A CN 111408235A
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- way valve
- air
- oxygen reduction
- adsorption
- pipeline
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- 239000001301 oxygen Substances 0.000 title claims abstract description 63
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 63
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 230000009467 reduction Effects 0.000 title claims abstract description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000001179 sorption measurement Methods 0.000 claims abstract description 69
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 38
- 238000000605 extraction Methods 0.000 claims abstract description 8
- 239000002808 molecular sieve Substances 0.000 claims description 15
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 15
- 238000003795 desorption Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 3
- 238000002360 preparation method Methods 0.000 abstract 3
- 235000013305 food Nutrition 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- 235000012055 fruits and vegetables Nutrition 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 210000001779 taste bud Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- 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
- B01D2256/10—Nitrogen
-
- 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
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses an oxygen reduction device and a refrigerator, comprising: the air-extracting device of inlet end intercommunication refrigerator walk-in, the first adsorption equipment of end absorption nitrogen gas and the second adsorption equipment of absorption oxygen of giving vent to anger of intercommunication air-extracting device, make the first pipeline subassembly that the first adsorption equipment end of giving vent to anger communicates with the external world or communicates with the walk-in and make the second adsorption equipment end of giving vent to anger communicate with the external world or communicate with the walk-in second pipeline subassembly through breaking the pipeline, control air-extracting device switch and first, the controller of the continuous system nitrogen of second pipeline subassembly pipeline on-off state and oxygen reduction. According to the invention, by controlling the on-off state of the air compressor and the on-off state of the first pipeline assembly and the second pipeline assembly, the second adsorption device is used for nitrogen preparation and oxygen reduction during air extraction, the first adsorption device is used for nitrogen absorption and oxygen reduction, the second adsorption device is used for desorbing oxygen at normal pressure and discharging oxygen when the air compressor is closed, and the first adsorption device is used for desorbing nitrogen at normal pressure to prepare nitrogen, so that the effect of continuous nitrogen preparation and oxygen reduction is achieved, and the nitrogen preparation efficiency and the oxygen reduction efficiency are improved.
Description
Technical Field
The invention relates to the field of refrigerators, in particular to an oxygen reduction device and a refrigerator.
Background
With the increase of the economic level, the requirements of people on the quality of life are higher and higher. For the refrigerator, people no longer satisfy the function that the refrigerator only has low-temperature storage, but want the refrigerator to keep the freshness of food as much as possible and bring more taste bud experience to the refrigerator. However, foods such as fruits and vegetables are rotten and deteriorated in the refrigerator due to their own respiration and aerobic microorganisms. Since foods such as fruits and vegetables absorb oxygen in the refrigerator, exhale carbon dioxide and moisture and emit heat, the foods are easily rotten if moisture and heat are not discharged in time. Aerobic microorganisms are also bred in the oxygen in the refrigerator, so that the food is accelerated to deteriorate.
In the prior art, the modified atmosphere preservation technology is a common preservation technology. Modified atmosphere preservation refers to a technology for achieving the purpose of preservation and storage of stored materials such as meat, fruits and vegetables by artificially changing the components of environmental gases on the basis of low-temperature storage. Specifically, modified atmosphere is actually to reduce the oxygen content in the ambient gas and to appropriately change the composition ratio of carbon dioxide and nitrogen while maintaining a suitably low temperature. The existing air-conditioning preservation technology can only carry out single oxygen reduction, and the oxygen reduction efficiency is low.
Disclosure of Invention
The invention provides an oxygen reduction device and a refrigerator, aiming at solving the technical problem of low oxygen reduction efficiency of the refrigerator in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides an oxygen reduction device, which comprises: the air inlet end is communicated with an air extractor of a refrigerating chamber of the refrigerator, the air outlet end of the air extractor is simultaneously communicated with a first adsorption device for adsorbing nitrogen and a second adsorption device for adsorbing oxygen, a first pipeline assembly for communicating the air outlet end of the first adsorption device with the outside or with the refrigerating chamber and a second pipeline assembly for communicating the air outlet end of the second adsorption device with the outside or with the refrigerating chamber are connected through a cut-off pipeline, and a controller for controlling the switch of the air extractor and the continuous nitrogen and oxygen production of the first and second pipeline assemblies in a pipeline cut-off state is used.
Furthermore, the first adsorption device and the second adsorption device are communicated with the air outlet end of the air exhaust device through a third pipeline assembly.
The third conduit assembly includes: the three-way valve is connected with the air outlet pipeline of the air extractor and controlled by the controller, the first air inlet pipe is connected with the three-way valve and the air inlet end of the first adsorption device, and the second air inlet pipe is connected with the three-way valve and the air inlet end of the second adsorption device.
The first pipe assembly includes: the first three-way valve is connected with the air outlet pipeline of the first adsorption device and controlled by the controller, the first exhaust pipe is connected with the first three-way valve, and the first circulating pipe is connected with the first three-way valve and the refrigerating chamber.
The second pipe assembly includes: a second three-way valve connected with the air outlet pipeline of the second adsorption device and controlled by the controller, a second exhaust pipe connected with the second three-way valve, and a second circulating pipe connected with the second three-way valve and the refrigerating chamber.
Further, an air battery is arranged in the refrigerating chamber. And the air inlet end of the air exhaust device is provided with a switch valve which is controlled to be switched on and off by a controller.
Preferably, the first and second adsorption means comprise at least one molecular sieve.
When the low-oxygen fresh-keeping function of the refrigerator is started, the refrigerator circularly runs the first preset time of the pressurization mode, the second preset time of the desorption mode and the third preset time of the interruption mode in sequence.
The specific control of the pressurization mode is as follows: the controller controls the air extraction device and the three-way valve to be opened, the first three-way valve is switched to be communicated with the first exhaust pipe, and the second three-way valve is switched to be communicated with the second circulating pipe; the specific control of the desorption mode is as follows: the controller controls the air exhaust device to be closed, the first three-way valve is switched to be communicated with the first circulating pipe, and the second three-way valve is switched to be communicated with the second exhaust pipe; the specific control of the interrupt mode is as follows: the three-way valve, the first three-way valve and the second three-way valve are closed.
The invention also provides a refrigerator comprising the oxygen reduction device.
Compared with the prior art, the first adsorption device capable of adsorbing oxygen and separating nitrogen and the second adsorption device capable of adsorbing nitrogen and separating oxygen are arranged at the air outlet end of the air compressor in parallel, the on-off state of the air compressor and the on-off state of the first pipeline assembly and the second pipeline assembly are controlled by the controller, so that the second adsorption device can be used for producing nitrogen and reducing oxygen during air extraction, the first adsorption device can be used for absorbing nitrogen and reducing oxygen, the second adsorption device can be used for desorbing oxygen at normal pressure and discharging oxygen when the air compressor is turned off, and the first adsorption device can be used for desorbing nitrogen at normal pressure to produce nitrogen, so that the effect of continuously producing nitrogen and reducing oxygen is achieved, and the nitrogen production efficiency and the oxygen reduction efficiency are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an oxygen reduction device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, the present invention provides an oxygen reduction device, comprising: the device comprises an air extracting device 5, a first adsorption device 1, a second adsorption device 2, a first pipeline assembly, a second pipeline assembly and a controller; the air inlet end of the air extracting device 5 is communicated with the refrigerating chamber of the refrigerator, the air outlet end of the air extracting device 5 is simultaneously communicated with the air inlet ends of the first adsorption device 1 and the second adsorption device 2 through a third pipeline assembly, and therefore air extracted from the refrigerating chamber through the air extracting device 5 can simultaneously pass through the first adsorption device 1 and the second adsorption device 2. The air outlet end of the first adsorption device 1 is communicated with the outside and the refrigerating chamber through a first pipeline assembly, and the first pipeline assembly can be controlled by a controller to be switched on and off to enable the air outlet end of the first adsorption device 1 to be communicated with the outside or the refrigerating chamber. The air outlet end of the second adsorption device 2 is communicated with the outside and the refrigerating chamber through a second pipeline assembly, and the controller can control the second pipeline assembly to be switched on and off, so that the air outlet end of the second adsorption device 2 is switched between being communicated with the outside or the refrigerating chamber. First adsorption equipment 1 adsorbable oxygen separation nitrogen gas, the adsorbable nitrogen separation oxygen of second adsorption equipment 2, the controller is through controlling 5 switches of air exhaust device and first, second pipeline subassembly pipeline on-off state, make when bleeding second adsorption equipment 2 carry out the system nitrogen and reduce oxygen, first adsorption equipment 1 inhales nitrogen and reduces oxygen, 2 ordinary pressure desorption oxygen of second adsorption equipment discharge when air exhaust device 5 closes, 1 ordinary pressure desorption nitrogen of first adsorption equipment carries out the system nitrogen, thereby reach the effect that lasts system nitrogen and reduce oxygen.
In a particular embodiment, the third conduit assembly comprises: the three-way valve 61 which is connected with the air outlet pipeline of the air extractor 5 and is controlled to be opened and closed by the controller is connected with the lower right port of the three-way valve 61 and the first air inlet pipe at the air inlet end of the first adsorption device 1 and connected with the upper right port of the three-way valve 61 and the second air inlet pipe at the air inlet end of the second adsorption device 2.
The first pipe assembly includes: a first three-way valve 31 connected with the air outlet pipeline of the first adsorption device 1 and controlling the opening and closing of the upper right port and the lower right port through a controller, a first exhaust pipe 32 connected with the upper right port of the first three-way valve and the outside, and a first circulating pipe 33 connected with the lower right port of the first three-way valve and the refrigerating chamber. So that the first adsorption device 1 can be switched between being communicated with the outside or the refrigerating chamber by controlling the upper right port and the lower right port to be disconnected through the controller.
The second pipe assembly includes: a second three-way valve 41 connected to the outlet duct of the second adsorption device 2 and having right upper and lower ports controlled by the controller, a second exhaust pipe 42 connected to the right upper port of the second three-way valve and the outside, and a second circulation pipe 43 connected to the right lower port of the second three-way valve and the refrigerating compartment. So that the second adsorption device 2 can be switched between communication with the outside or the refrigerating chamber by controlling the upper right port and the lower right port to be opened and closed by the controller.
The air inlet end of the air extraction device 5 communicated with the refrigerating chamber of the refrigerator is provided with a switch valve 51 which is controlled to be switched on and off by a controller, the switch valve and the three-way valve are electromagnetic valves which can be controlled by the controller, wherein the air extraction device 5 can be specifically an air compressor and provides power for air circulation.
The adsorbent of the first adsorption device and the adsorbent of the second adsorption device consist of one or more molecular sieves, the molecular sieve for adsorbing oxygen can be a carbon molecular sieve and the like, the molecular sieve for adsorbing nitrogen can be a L iX molecular sieve, a zeolite molecular sieve, a 5A molecular sieve and the like, the carbon molecular sieve is an excellent nonpolar carbon material and used for separating air and enriching nitrogen, and has the advantages of low investment cost, high nitrogen production speed, low nitrogen cost and the like, the L iX molecular sieve has obvious advantages in oxygen-nitrogen separation, large nitrogen adsorption capacity and high adsorption rate, the 5A molecular sieve can not only perform oxygen-nitrogen separation, but also adsorb water which is up to 22% of the weight of the molecular sieve, and the zeolite molecular sieve is prepared by air separation through balanced adsorption difference of nitrogen and oxygen on the surface of the zeolite molecular sieve, selectively adsorbs nitrogen because nitrogen has stronger quadrupole moment and the polarization rate of nitrogen is higher than that of nitrogen and cations in zeolite and polar surface effects of nitrogen are stronger than that of oxygen.
In the invention, the refrigerating chamber is also provided with an air battery, and the oxidant of the air battery is taken from the oxygen in the environment, thereby further improving the oxygen reduction efficiency. In a particular embodiment, the air battery may be housed in a crisper, and the air battery in the crisper may be connected to a low load component, such as a lighting device in a refrigerator. The air battery may be a zinc-air battery, a lithium-air battery, an aluminum-air battery, or the like.
The invention also provides a refrigerator which comprises the oxygen reduction device, wherein the oxygen reduction device is specifically controlled by the control logic of the low-oxygen fresh-keeping function of the refrigerator.
When the refrigerator starts the low-oxygen fresh-keeping function, the pressurization mode for the first preset time T1, the desorption mode for the second preset time T2 and the interruption mode for the third preset time T3 are operated in sequence in a circulating mode. The specific parameters can be set as follows: t1 is more than or equal to 1min and less than or equal to 2min, T2 is more than or equal to 1min and less than or equal to 2min, and T3 is more than or equal to 60min and less than or equal to 120 min.
The control states of the pressurization mode are as follows: the controller controls the air exhaust device 5, the switch valve and the three-way valve to be opened, the first three-way valve is switched to enable the air outlet end of the first adsorption device to be communicated with the first exhaust pipe, and the second three-way valve is switched to enable the air outlet end of the second adsorption device to be communicated with the second circulating pipe; the specific control of the desorption mode is: the controller controls the air exhaust device 5 to be closed, the first three-way valve is switched to enable the air outlet end of the first adsorption device to be communicated with the first circulating pipe, and the second three-way valve is switched to enable the air outlet end of the second adsorption device to be communicated with the second exhaust pipe; the specific control of the interrupt mode is as follows: and closing the switch valve, the three-way valve, the first three-way valve and the second three-way valve, and continuing to operate the pressurizing mode after the interruption mode is operated for a third preset time to form circulation to continuously perform oxygen reduction and nitrogen production.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. An oxygen reduction device comprising: air exhaust device of inlet end intercommunication refrigerator walk-in, its characterized in that still includes: the air exhaust device comprises a first adsorption device and a second adsorption device, wherein the air exhaust end of the air exhaust device is communicated with the first adsorption device for adsorbing nitrogen, the second adsorption device for adsorbing oxygen, a first pipeline assembly and a second pipeline assembly, the air exhaust end of the first adsorption device is communicated with the outside or the refrigerating chamber, the air exhaust end of the second adsorption device is communicated with the outside or the refrigerating chamber, the second pipeline assembly is communicated with the outside or the refrigerating chamber, and a controller is used for controlling the on-off state of an air exhaust device switch and the pipeline of the first pipeline assembly and the second pipeline assembly to continuously produce nitrogen and.
2. The oxygen reduction device according to claim 1, wherein the first adsorption device and the second adsorption device are communicated with the gas outlet end of the gas extraction device through a third pipeline assembly.
3. The oxygen reduction device of claim 2, wherein the third conduit assembly comprises: the air outlet pipeline of the air extractor is connected with a three-way valve controlled by a controller, a first air inlet pipe connected with the three-way valve and the air inlet end of the first adsorption device, and a second air inlet pipe connected with the three-way valve and the air inlet end of the second adsorption device.
4. The oxygen reduction device of claim 3, wherein the first conduit assembly comprises: the first three-way valve is connected with the air outlet pipeline of the first adsorption device and controlled by the controller, the first exhaust pipe is connected with the first three-way valve, and the first circulating pipe is connected with the first three-way valve and the refrigerating chamber.
5. The oxygen reduction device of claim 4, wherein the second conduit assembly comprises: a second three-way valve connected with the air outlet pipeline of the second adsorption device and controlled by the controller, a second exhaust pipe connected with the second three-way valve, and a second circulating pipe connected with the second three-way valve and the refrigerating chamber.
6. The oxygen reduction device according to claim 1, wherein an air battery is further provided in the refrigerating chamber.
7. The oxygen reduction device according to claim 1, wherein the air inlet end of the air extraction device is provided with a switch valve which is controlled to be opened and closed by a controller.
8. The oxygen reduction device of claim 1, wherein the first and second adsorption devices comprise at least one molecular sieve.
9. The oxygen reduction device according to claim 5, wherein when the refrigerator starts the low oxygen fresh-keeping function, the pressurization mode is operated for a first preset time, the desorption mode is operated for a second preset time, and the interruption mode is operated for a third preset time in a cyclic manner in sequence.
10. The oxygen reduction device according to claim 9, wherein the specific control of the pressurization mode is: the controller controls the air extraction device and the three-way valve to be opened, the first three-way valve is switched to be communicated with the first exhaust pipe, and the second three-way valve is switched to be communicated with the second circulating pipe; the specific control of the desorption mode is as follows: the controller controls the air exhaust device to be closed, the first three-way valve is switched to be communicated with the first circulating pipe, and the second three-way valve is switched to be communicated with the second exhaust pipe; the specific control of the interrupt mode is as follows: the three-way valve, the first three-way valve and the second three-way valve are closed.
11. A refrigerator characterized by comprising the oxygen reduction device according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322980.2A CN111408235A (en) | 2020-04-22 | 2020-04-22 | Oxygen reduction device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322980.2A CN111408235A (en) | 2020-04-22 | 2020-04-22 | Oxygen reduction device and refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN111408235A true CN111408235A (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010322980.2A Pending CN111408235A (en) | 2020-04-22 | 2020-04-22 | Oxygen reduction device and refrigerator |
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| CN (1) | CN111408235A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151967A (en) * | 1995-11-06 | 1997-06-18 | 普拉塞尔技术有限公司 | Single bed pressure swing adsorption process for recovery of oxygen from air |
| CN1225036A (en) * | 1996-07-08 | 1999-08-04 | 拜尔公司 | Method for the adsorptive separation of air |
| CN106091519A (en) * | 2016-05-31 | 2016-11-09 | 青岛海尔股份有限公司 | Refrigerator |
| CN206291602U (en) * | 2016-12-13 | 2017-06-30 | 西安石油大学 | A kind of wind cooling refrigerator deoxygenation preservation device |
| CN206410411U (en) * | 2016-12-29 | 2017-08-15 | 西安石油大学 | A kind of fixed absorption deaerating plant for improving fridge freshness retaining |
| CN109464877A (en) * | 2017-09-08 | 2019-03-15 | 霍尼韦尔特性材料和技术（中国）有限公司 | Change the method, drop oxygen device and method and refrigerator of the GN 2 oxygen concentration |
| JP2019085293A (en) * | 2017-11-06 | 2019-06-06 | ダイキン工業株式会社 | Low oxygen concentration air supply apparatus |
-
2020
- 2020-04-22 CN CN202010322980.2A patent/CN111408235A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151967A (en) * | 1995-11-06 | 1997-06-18 | 普拉塞尔技术有限公司 | Single bed pressure swing adsorption process for recovery of oxygen from air |
| CN1225036A (en) * | 1996-07-08 | 1999-08-04 | 拜尔公司 | Method for the adsorptive separation of air |
| CN106091519A (en) * | 2016-05-31 | 2016-11-09 | 青岛海尔股份有限公司 | Refrigerator |
| CN206291602U (en) * | 2016-12-13 | 2017-06-30 | 西安石油大学 | A kind of wind cooling refrigerator deoxygenation preservation device |
| CN206410411U (en) * | 2016-12-29 | 2017-08-15 | 西安石油大学 | A kind of fixed absorption deaerating plant for improving fridge freshness retaining |
| CN109464877A (en) * | 2017-09-08 | 2019-03-15 | 霍尼韦尔特性材料和技术（中国）有限公司 | Change the method, drop oxygen device and method and refrigerator of the GN 2 oxygen concentration |
| JP2019085293A (en) * | 2017-11-06 | 2019-06-06 | ダイキン工業株式会社 | Low oxygen concentration air supply apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 程勤阳等: "《果蔬产地批发市场建设与管理》", 31 May 2014 * |
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Application publication date: 20200714 |
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| RJ01 | Rejection of invention patent application after publication |