CN101358793A - Oxygen-consuming method for refrigerator and refrigerator for adjusting fresh-keeping by oxygen consume by using the oxygen-consuming method - Google Patents
Oxygen-consuming method for refrigerator and refrigerator for adjusting fresh-keeping by oxygen consume by using the oxygen-consuming method Download PDFInfo
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- CN101358793A CN101358793A CNA2007100548637A CN200710054863A CN101358793A CN 101358793 A CN101358793 A CN 101358793A CN A2007100548637 A CNA2007100548637 A CN A2007100548637A CN 200710054863 A CN200710054863 A CN 200710054863A CN 101358793 A CN101358793 A CN 101358793A
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Abstract
The present invention relates to a deoxidization method for the refrigerator and an oxygen-consumed fresh-keeping refrigerator. The present invention adopts the deoxidization method that an air battery is arranged inside the refrigerator, and the oxygen contained in the air inside a cold storage chamber of the refrigerator is supplied to the air battery to have the chemical reaction so as to produce the electric power; a load is connected to the air battery, and the load is power supplied while consuming the oxygen. The technical requirement for the deoxidization of the cold storage chamber of the refrigerator is skillfully combined with the technical characteristics of the oxygen consumption during the working of the air battery, so that not only the surplus oxygen inside the cold storage chamber of the refrigerator can be consumed up during the working of the air battery, but also the electric current can be produced to drive the fan or the micro gas pump to work, so as to perform the effective cycling of the gas, thereby improving the deoxidization effect. During the deoxidization of the refrigerator, no foreign power source is required; the air battery can directly absorb the surplus oxygen inside the refrigerator to produce the electric current so as to supply the power to the load, thereby reducing the oxygen content in the air inside the cold storage chamber of the refrigerator, and improving the fresh-keeping performance of the refrigerator, so that the user can enjoy the fresh food at any time.
Description
Technical field
The present invention relates to a kind of method that reduces oxygen concentration in the refrigerator, simultaneously, also relate to a kind of oxygen consumption controlled atmosphere refrigerator that utilizes this deoxidization method, applicable to household refrigerator-freezer.
Background technology
Cause that food spoilage has 5 reasons usually: (1) microbial action; (2) effect of enzyme; (3) oxidation; (4) respiration; (5) mechanical damage.In general, the reduction of temperature can delay, weaken their effect, but can not suppress their effect fully, so refrigerating food, its quality always descends to some extent.In order to reach the fresh-keeping purpose of refrigerator food, must study the fridge freshness retaining technology from four aspects: Temperature Treatment, microbiological treatment, humidity are handled and gas regulation.
Oxygen content in the normal air is nearly 21%, and the content height is unfavorable for food fresh keeping.The oxidation of food, respiration are all closely related in oxygen and the refrigerator.The breathing of food is slow more, and fresh keeping time is long more; The oxidation of food is low more, and the fresh keeping time of food is long more.According to the Food Science technology, the oxygen concentration that fruits and vegetables need when storage is very low, as shown in table 1
| Kind | CO 2％ | O 2％ |
| Apple | 2～5 | 3 |
| Asparagus | 5～10 | 2.9 |
| Wild cabbage | 2.5～5 | 2.5～5 |
| Green soya bean | 5 | 2 |
| Sprouting broccoli | 10 | 2.5 |
| Cabbage | 2.5～5 | 2.5～5 |
| Lettuce | 5～10 | 1 |
| Pears | 5 | 1 |
| Spinach | 11 | 1 |
| Tomato (green) | 0 | 3 |
The continuous controlled atmospheres of table 1 part fruits and vegetables (CA) the storage condition table 1 continuous controlled atmospheres of part fruits and vegetables (CA) storage condition
The freshness date of guaranteeing the quality that can prolong food by the mode that reduces the indoor concentration of oxygen of refrigerator cold-storage, if the composition that can control the food storage environmental gas just can be controlled the breathing and the evaporation of fruits and vegetables, suppress microbial growth, suppress the oxidation and the brown stain of food composition, thereby reach the purpose that prolongs the food fresh keeping phase.
Reduce oxygen content in the air, food fresh keeping is had tangible effect: hypoxemia can suppress chlorophyllous degraded, reaches the purpose of food fresh keeping; Can reduce the loss of ascorbic acid, improve nutritive value of food; Can reduce the minimizing speed of insoluble pectin material, increase the crisp hardness of food.Reduce oxygen content in the air, can reduce the respiratory intensity of fruits and vegetables and postpone the appearance of its respiratory climacteric, oxygen just works in the time of must dropping to 7% following content to the inhibition of respiratory intensity, but should not be lower than 2%, otherwise is prone to intoxicating phenomenon.Reduce airborne oxygen content, generation that can ethene suppressing, and weaken the spread effect of ethene to maturation, therefore also just be subjected to inhibition by the caused physiological action of ethene, as coming off and the hydrolysis of cracking, climacteric and reserve substance etc. of synthetic, the histoorgan of the chlorisis of chlorophyllous degraded, fruit and maturation, protein, thereby delayed the senescence process of fruits and vegetables, prolonged the freshness date of food, improved the preservation quality of food.
The Food Science technology has been the science and technology of a maturation, and people have worked out the fresh-keeping science and technology of numerous food product, as vacuum freshness retaining, and controlled atmosphere etc.Food preservative technology has obtained application in large cold storage, usually oxygen content, humidity and carbon dioxide content in cryogenic technique and the control gas is combined, and prolongs the freshness date of food.
The refrigerator of listing has adopted preservation by low temperature technology, high humility preservation technique and sterilization fresh-keeping technology now, these The Application of Technology, to the fresh-keeping positive role that played of refrigerator foodstuff storing, but the refrigerator of up to the present also the oxygen in the refrigerator, carbon dioxide not being controlled in the world wide.
Chinese patent CN86204116 discloses a kind of fresh-keeping device, and this fresh-keeping device is made up of conventional refrigerator and degasifier, and this degasifier is made up of iron pond body, core pipe, carbon-point, electrolyte and bubbling pipe.The deoxidation of the disclosure patent is that the air in the refrigerator feeds electrolyte through gas circulator, be dispersed into tiny bubble by bubbling pipe, air contacts with electrolyte, electrolyte absorption oxygen, become oxidation state by going back ortho states, under galvanic effect, electrolyte is become by oxidation state at negative pole goes back ortho states, at anodal precipitated oxygen, so just reduced by the airborne oxygen concentration after the degasifier processing.The gas of storeroom by getting back to storeroom after the degasifier deoxidation, carries out continuous deoxidation in the gas return path of a closure under the effect of gas circulator.This utility model patent structure is comparatively complicated, applies thereby limited it.
The Chinese patent communique discloses a kind of name and has been called " refrigerator ", application number is 03160147.2 patent, its technical scheme is: be provided with mounting or dismounting lid freely on the accepting container of vegetable compartment, this lid is provided with device for deoxidizing, device for deoxidizing, to be housed in the inside of casing by the electrolytic element of anode electrode and negative electrode clamping polyelectrolyte membrane, and utilize lid the airborne oxygen in the confined space to be separated removal with accepting container and by this device for deoxidizing.This patent is at the fruit and vegetable box design, and is inapplicable to whole refrigerating chamber.
In sum, the device for deoxidizing that existing refrigerator with deoxygenation function is used all must realize reducing the purpose of oxygen concentration by the external application supply unit, complex structure, and energy consumption is bigger, has limited its application in actual production.
Air cell comprises metal negative pole 1, oxygen anodal 2 and alkaline solution medium 3 (as shown in Figure 1), and wherein the metal negative pole is the active metal, adopts powder porous electrode structure; Alkaline solution is NaOH or KOH alkaline solution; The oxygen positive electrode will react with catalytic membrane when air enters inside battery for promoting the catalytic membrane of oxygen reduction, forms the air positive pole; Airborne oxygen is participated in electrochemical reaction at positive pole and is produced electric current, constantly absorbs new fresh oxygen after oxygen is consumed from air, continues to produce electric current.
Summary of the invention
The object of the present invention is to provide a kind of refrigerator deoxidization method, with concentration of oxygen in effective reduction refrigerator.
Simultaneously, the present invention also aims to provide a kind of oxygen consumption controlled atmosphere refrigerator that utilizes this refrigerator deoxidization method,, improved the freshness date of guaranteeing the quality of the indoor food of refrigerator cold-storage to reduce the content of oxygen in the indoor gas of refrigerator cold-storage.
To achieve these goals, technical program of the present invention lies in having adopted a kind of refrigerator deoxidization method, this method is that-air cell is arranged in the refrigerator, utilize the indoor airborne oxygen supply air cell generation chemical reaction of refrigerator cold-storage to produce electric energy, on air cell, be connected with a load, powering load when consuming oxygen.
Simultaneously, technical program of the present invention also lies in providing a kind of oxygen consumption controlled atmosphere refrigerator that utilizes the refrigerator deoxidization method, comprise refrigerating chamber, in refrigerating chamber, be provided with an air cell, on air cell, be connected with a power switch and a load.
Described load is bulb, fan or mini air pump.
Described air cell is arranged on inside, deoxidation storehouse, is respectively arranged with a gas outlet and an air inlet on the deoxidation warehouse, is provided with a fan or micro air pump at the air inlet place.
In addition, technical program of the present invention also lies in having adopted another refrigerator deoxidization method, this method is earlier an air cell to be placed in the gas-tight silo, bottom and top at gas-tight silo are respectively arranged with an air inlet and a gas outlet, air inlet all is connected with the refrigerating chamber of refrigerator by wireway with the gas outlet, wireway is provided with a load, and the indoor airborne oxygen supply air cell generation chemical reaction of refrigerator cold-storage produces electric energy, powering load when consuming oxygen.
Technical program of the present invention also lies in adopting a kind of oxygen consumption controlled atmosphere refrigerator that utilizes this refrigerator deoxidization method, comprise refrigerating chamber, be outside equipped with an air cell at refrigerating chamber, air cell is arranged in the gas-tight silo, bottom and top at gas-tight silo are respectively arranged with an air inlet and a gas outlet, air inlet all is connected with the refrigerating chamber of refrigerator by wireway with the gas outlet, is connected with a load on wireway.
Described load is fan or micro air pump.
Deoxidization method of the present invention is that an air cell is acted in the refrigerator, be connected with a switch and a load on the air cell, what the oxygen positive electrode of air cell adopted is the catalytic membrane that can promote oxygen reduction, its characteristic is to react by catalytic oxygen, and oxygen can be in its intermediate transfer, oxygen in the deoxidation storehouse from around enter in the oxygen positive pole, under the anodal catalytic action of oxygen, react; The metal negative pole is the active metal, adopts powder porous electrode structure, to increase output current density; With the alkaline solution is medium, can adopt alkaline solutions such as NaOH, KOH.Chemical reaction takes place in active metal Zn in alkaline medium, the general formula of electrode reaction is:
Zn+2OH
-→Z
n(OH)
2+2e
- E
0＝-0.42V(vs.RHE)
Or Zn (OH)
2+ 2OH
-→ Z
n(OH)
4 2-
Product is Z
n(OH)
2Or Z
n(OH)
4 2-Depend on OH
-Concentration
The oxidant of device for deoxidizing is airborne O
2, oxygen is reduced to OH during discharge
-
O
2+2H
2O+4e→4OH
Because when having only discharge, O
2Just be reduced to OH, therefore need only the power switch closure, air cell will continue powering load, and chemical reaction will carry out always, and the oxygen in the deoxidation storehouse will constantly be consumed.Method of the present invention does not need external power supply, and the indoor airborne oxygen of refrigerator cold-storage is participated in electrochemical reaction at positive pole and produced electric current, constantly absorbs new fresh oxygen after oxygen is consumed again from air, continues to produce electric current, powering load.
Because air cell can work at low temperatures, and can not produce heat, volume is also little, so air cell can be arranged on refrigerator inside, also can be arranged on the outside of refrigerator.
When air cell is arranged on refrigerator inside, can directly constantly consume the indoor oxygen of refrigerator cold-storage, reduce the indoor concentration of oxygen of refrigerator cold-storage, reach the purpose of preserving fruit and vegetable utilizing.
When air cell is arranged on the refrigerator outside, earlier air cell is placed in the confined space, when the indoor hyperoxia gas of refrigerator cold-storage is flowed through the confined space at air cell place, oxygen is consumed by air cell, it is indoor that low-oxygen gas returns refrigerator cold-storage under the effect of air pump, reduces concentration of oxygen in the indoor air of refrigerator cold-storage with this.
The present invention is that the technical characterstic of oxygen consumption has carried out combination cleverly during with the work of cold compartment of refrigerator deoxidation technology demand and air cell, not only the indoor unnecessary oxygen expenditure of refrigerator cold-storage can be fallen when making air cell work, and can produce electric current, drive fan or micro air pump work, carry out effective circulation of gas, strengthen deoxidation effect.Refrigerator of the present invention does not need external power supply when deoxidation, the air cell that adopts can directly absorb unnecessary oxygen in the refrigerator, produce electric current, powering load, can reduce the content of oxygen in the indoor gas of refrigerator cold-storage, improve refrigerator and preserve food performance, allow the user can enjoy FF at any time.The present invention proposes a kind of simple fresh-keeping structure of oxygen of falling cheaply, good using value is arranged at refrigerating field.
Description of drawings
Fig. 1 is the structural representation of air cell among the present invention;
Fig. 2 is the structural representation of a kind of embodiment of refrigerator of the present invention;
Fig. 3 is the structural representation of the another kind of embodiment of refrigerator of the present invention;
Fig. 4 is the structural representation of the third embodiment of refrigerator of the present invention.
The specific embodiment
Embodiment 1
As shown in Figure 2, refrigerator of the present invention comprises refrigerating chamber 5, is provided with an air cell 6 in refrigerating chamber 5, is connected with a power switch 7 and a load on air cell 6.Load in the present embodiment is a fan 8.
During work, after power switch 7 was closed, air cell 6 was started working, and gave circulating fan 8 power supplies simultaneously, fan 8 runnings; The indoor oxygen of refrigerator cold-storage is consumed, reach the purpose of deoxidation, the running of fan 8 can promote to refrigerate the circulation of indoor gas, and the gas of hypoxemia around the air cell 6 is dispelled from air cell space far away, simultaneously will be near air cell hyperoxia gas far away is recycled to device.
As shown in Figure 3, the difference of present embodiment and embodiment 1 is: air cell 6 is arranged on 9 inside, a deoxidation storehouse, the deoxidation warehouse is provided with an air inlet and a gas outlet 11, air inlet is provided with a fan 10, wherein the air outlet of fan 10 is connected with a power switch 7 and a bulb 19 towards deoxidation warehouse inside on air cell 6.
Embodiment 3
As shown in Figure 4, present embodiment oxygen consumption controlled atmosphere refrigerator, comprise refrigerating chamber 5, be outside equipped with an air cell 6 at refrigerating chamber 5, air cell 6 is arranged in the gas-tight silo 12, is respectively arranged with an air inlet 13 and a gas outlet 14 on the bottom and the top of gas-tight silo 12, and air inlet 13 all is connected with the refrigerating chamber 5 of refrigerator by wireway with gas outlet 14, on wireway 15, be connected with a micro air pump 16, on air cell 6, be connected with a power switch 17.
Its operation principle is: after shutting power switch 17, air cell 6 is started working, and gives micro air pump 16 power supplies simultaneously; Micro air pump 16 is extracted the hyperoxia air in the cold compartment of refrigerator 5 out, and enter in the gas-tight silo 12 by hyperoxia air wireway 15, air cell 6 consumes airborne part oxygen in the gas-tight silo 12, and the hypoxic air after the deoxidation is in hypoxic air wireway 18 enters cold compartment of refrigerator 5; So constitute circulation, constantly consume the oxygen in the refrigerating chamber, reduce the indoor concentration of oxygen of refrigerator cold-storage, thereby reduce the oxidation rate of refrigerating chamber food, kept the indoor high-nitrogen hypoxia environment of refrigerator cold-storage, come fresh-keeping foodstuff by the respiration that suppresses vegetable and fruit, low-oxygen environment also can effectively suppress the breeding of aerobic bacteria simultaneously, these all help slowing down the rate of deterioration of food, prolong storage life.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. refrigerator deoxidization method, it is characterized in that: this method is that an air cell is arranged in the refrigerator, utilize the indoor airborne oxygen supply air cell generation chemical reaction of refrigerator cold-storage to produce electric energy, on air cell, be connected with a load, powering load when consuming oxygen.
2. an oxygen consumption controlled atmosphere refrigerator that utilizes refrigerator deoxidization method as claimed in claim 1 comprises refrigerating chamber, it is characterized in that: be provided with an air cell in refrigerating chamber, be connected with a power switch and a load on air cell.
3. oxygen consumption controlled atmosphere refrigerator according to claim 2 is characterized in that: described load is bulb, fan or mini air pump.
4. oxygen consumption controlled atmosphere refrigerator according to claim 2 is characterized in that: described air cell is arranged on inside, deoxidation storehouse, is respectively arranged with a gas outlet and an air inlet on the deoxidation warehouse, is provided with a fan or micro air pump at the air inlet place.
5. refrigerator deoxidization method, it is characterized in that: this method is earlier an air cell to be placed in the gas-tight silo, bottom and top at gas-tight silo are respectively arranged with an air inlet and a gas outlet, air inlet all is connected with the refrigerating chamber of refrigerator by wireway with the gas outlet, on wireway, be connected with a load, the indoor airborne oxygen supply air cell generation chemical reaction of refrigerator cold-storage produces electric energy, powering load when consuming oxygen.
6. refrigerator deoxidization method according to claim 5 is characterized in that: described load is fan or micro air pump.
7. oxygen consumption controlled atmosphere refrigerator that utilizes refrigerator deoxidization method as claimed in claim 5, comprise refrigerating chamber, it is characterized in that: be outside equipped with an air cell at refrigerating chamber, air cell is arranged in the gas-tight silo, on gas-tight silo, be respectively arranged with an air inlet and a gas outlet, air inlet all is connected with the refrigerating chamber of refrigerator by wireway with the gas outlet, is connected with a load on wireway.
8. oxygen consumption controlled atmosphere refrigerator according to claim 7 is characterized in that: described load is fan or micro air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100548637A CN101358793A (en) | 2007-07-30 | 2007-07-30 | Oxygen-consuming method for refrigerator and refrigerator for adjusting fresh-keeping by oxygen consume by using the oxygen-consuming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100548637A CN101358793A (en) | 2007-07-30 | 2007-07-30 | Oxygen-consuming method for refrigerator and refrigerator for adjusting fresh-keeping by oxygen consume by using the oxygen-consuming method |
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|---|---|
| CN101358793A true CN101358793A (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100548637A Pending CN101358793A (en) | 2007-07-30 | 2007-07-30 | Oxygen-consuming method for refrigerator and refrigerator for adjusting fresh-keeping by oxygen consume by using the oxygen-consuming method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949630A (en) * | 2010-09-27 | 2011-01-19 | 合肥美的荣事达电冰箱有限公司 | Refrigerator refreshing system and refrigerator with same |
| CN101838647B (en) * | 2009-12-31 | 2012-01-18 | 深圳华大基因科技有限公司 | Promoter BgIosP587, and preparation method and application thereof |
| CN103014747A (en) * | 2011-09-26 | 2013-04-03 | 株式会社东芝 | Disoxidation device and refrigerator |
| CN105276902A (en) * | 2014-07-16 | 2016-01-27 | Bsh家用电器有限公司 | Household appliance with oxygen device and filter device |
| CN107062768A (en) * | 2016-12-09 | 2017-08-18 | 青岛海尔股份有限公司 | Refrigerator |
| WO2018108056A1 (en) * | 2016-12-12 | 2018-06-21 | 青岛海尔股份有限公司 | Refrigerator |
| CN109539659A (en) * | 2018-12-14 | 2019-03-29 | 长虹美菱股份有限公司 | A kind of refrigerator with fresh-keeping function |
| CN109845944A (en) * | 2017-11-30 | 2019-06-07 | 青岛海尔股份有限公司 | Refrigerating device and its container for storing |
| CN111156776A (en) * | 2019-12-31 | 2020-05-15 | 安徽康佳同创电器有限公司 | Oxygen-reducing fresh-keeping structure, refrigerator, oxygen-reducing fresh-keeping method and storage medium |
-
2007
- 2007-07-30 CN CNA2007100548637A patent/CN101358793A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838647B (en) * | 2009-12-31 | 2012-01-18 | 深圳华大基因科技有限公司 | Promoter BgIosP587, and preparation method and application thereof |
| CN101949630A (en) * | 2010-09-27 | 2011-01-19 | 合肥美的荣事达电冰箱有限公司 | Refrigerator refreshing system and refrigerator with same |
| CN103014747A (en) * | 2011-09-26 | 2013-04-03 | 株式会社东芝 | Disoxidation device and refrigerator |
| CN105276902A (en) * | 2014-07-16 | 2016-01-27 | Bsh家用电器有限公司 | Household appliance with oxygen device and filter device |
| CN107062768A (en) * | 2016-12-09 | 2017-08-18 | 青岛海尔股份有限公司 | Refrigerator |
| CN107062768B (en) * | 2016-12-09 | 2023-11-07 | 青岛海尔股份有限公司 | Refrigerator with a refrigerator body |
| WO2018108056A1 (en) * | 2016-12-12 | 2018-06-21 | 青岛海尔股份有限公司 | Refrigerator |
| CN109845944A (en) * | 2017-11-30 | 2019-06-07 | 青岛海尔股份有限公司 | Refrigerating device and its container for storing |
| CN109539659A (en) * | 2018-12-14 | 2019-03-29 | 长虹美菱股份有限公司 | A kind of refrigerator with fresh-keeping function |
| CN109539659B (en) * | 2018-12-14 | 2024-03-12 | 长虹美菱股份有限公司 | Refrigerator with fresh-keeping function |
| CN111156776A (en) * | 2019-12-31 | 2020-05-15 | 安徽康佳同创电器有限公司 | Oxygen-reducing fresh-keeping structure, refrigerator, oxygen-reducing fresh-keeping method and storage medium |
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Open date: 20090204 |