CN103090638A - Method for controlling gas adjusting system of fresh-keeping refrigerator - Google Patents
Method for controlling gas adjusting system of fresh-keeping refrigerator Download PDFInfo
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- CN103090638A CN103090638A CN2012104115611A CN201210411561A CN103090638A CN 103090638 A CN103090638 A CN 103090638A CN 2012104115611 A CN2012104115611 A CN 2012104115611A CN 201210411561 A CN201210411561 A CN 201210411561A CN 103090638 A CN103090638 A CN 103090638A
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Abstract
The invention relates to a system control method for a refrigerator, in particular to a method for controlling a gas adjusting system of a fresh-keeping refrigerator. The method comprises the following steps that: when oxygen concentration sensors in storage chambers sense that the oxygen concentration in one or more of the storage chambers is greater than a set value, the oxygen concentration sensors transmit signals to a controller; the controller controls a compression pump to work according to the signals transmitted by the oxygen concentration sensors, and controls a gas distribution device to be communicated to the storage chambers in which fresh-keeping gas is needed to be supplemented; and when the oxygen concentration sensors sense that the oxygen concentration in all the storage chambers is equal to or smaller than the set value, the oxygen concentration sensors transmit signals to the controller, and the controller controls the compression pump to stop working. By the method for controlling the gas adjusting system of the fresh-keeping refrigerator, requirements of different foods with different fresh-keeping gas adjusting parameters can be met, the best fresh-keeping effects on different foods are achieved, each closed storage chamber is independently controlled, and gas in the storage chamber can be independently replaced; and the method has the advantages that the fresh-keeping time is prolonged, fresh-keeping quality is upgraded, energy consumption is reduced, and cross-contamination of the foods is reduced.
Description
Technical field
The present invention relates to a kind of system control method of refrigerator, relate in particular to a kind of Air-conditioning system control method of fresh-keeping refrigerator.
Background technology
Current, family or market are used for the refrigerator (refrigerator-freezer) of food fresh keeping, are mainly to utilize falling temperature technique, build the fresh-keeping environments of a low temperature in refrigerator or refrigerator-freezer, thereby food are carried out fresh-keeping, and in general, temperature is lower, and fresh keeping time is longer.But there are many deficiencies in this existing fresh-keeping mode.On the one hand, fresh keeping time requires longer, and is temperature required just lower, thereby wastes energy; On the other hand, because the oxygen composition and the air that contain in fresh-keeping environments are basic identical, to making the easy oxidation deterioration of food; Again on the one hand, food gives out, and various gas and the organic gas smelt reside in for a long time and can not get displacement in fresh-keeping environments, have both caused the cross pollution of food, make again fresh keeping time shorten.
Chinese invention patent application Publication Specification CN101368781A discloses a kind of fresh-keeping refrigerator, referring to Fig. 1, be provided with cooling space 15 and deaerating plant 1, deaerating plant 1 is located at outside refrigerator cooling space 15, one solid oxide electrolyte plate is separated out airtight deoxygenation district in deaerating plant 1 shell, the deoxygenation district is by advancing, escape pipe 11, 12 corresponding the going out of refrigerator cooling space 15 that connect, air inlet, the deoxygenation district is advanced, escape pipe 11, 12 are communicated with respectively the heating tube of a heat exchanger 16, cooling tube, heat exchanger uses the high metal of heat conduction efficiency to make, adopt sleeve structure, its outer heating tube is communicated with between the air inlet pipe 11 in gas outlet, refrigerator cold-storage district and deoxygenation district, its nexine cooling tube is communicated with between deoxygenation district escape pipe 12 and refrigerator cold-storage district air inlet, also be provided with fin 14 on the pipeline that is connected between its nexine cooling tube and refrigerator air inlet, fin is further cooling with heat exchanger cooling pipe gas out, the deoxygenation district side of electrolyte panel is provided with conductive cathode, and opposite side is established conductive anode, also be provided with the heater into the heating of solid oxide electrolyte plate in deaerating plant 1, connection pipeline between described deaerating plant 1 and refrigerator cooling space 15 is provided with circulation air pump 13, and circulation air pump 13 is used for cooled low-oxygen gas is drawn into cold compartment of refrigerator.This electrolyte panel is heated to 400 degree only to be passed through for oxonium ion when above, oxygen molecule in the deoxygenation district obtains electronics and becomes oxonium ion on conductive cathode, oxonium ion loses electronics at conductive anode after passing again from electrolyte panel under electric field action, again become oxygen molecule, utilize air pump with this deoxidation and deliver in refrigerator through cooled low-oxygen gas again, make the gas in cooling space be in hypoxia, more fresh-keeping.yet, a plurality of refrigerating chambers of this fresh-keeping refrigerator are communicated with each other, its Air-conditioning system is by same air inlet and the ventilation of same gas outlet, when opening refrigerator doors, all refrigerating chambers are communicated with atmosphere, ambient atmos enters refrigerator, in refrigerator, oxygen content raises, needing after refrigerator doors is closed that oxygen is fallen in all refrigerating chambers processes, relatively expend the energy, in addition, the setting of this connection of refrigerating chamber can not be satisfied different foods to different controlled atmosphere parameters or temperature controlled requirement, simultaneously, the foul smell that food produces in refrigerator, moisture and organic gas are not removed in cyclic process, be circulated back to refrigerating chamber and can produce pollution to food.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Air-conditioning system control method of the fresh-keeping refrigerator that can independently control and replace the gas componant of each airtight material storage room (being mainly foul smell and other organic gas that nitrogen, oxygen, food distribute) under fresh-keeping environments.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of Air-conditioning system control method of fresh-keeping refrigerator, this fresh-keeping refrigerator comprise some for storing the material storage room that needs fresh-keeping foodstuff, the controller that is used for providing to this material storage room the nitrogen oxygen segregation apparatus of fresh-keeping gas, the vavuum pump that is communicated with the fresh-keeping gas vent of this nitrogen oxygen segregation apparatus, gas delivery device and control vavuum pump and gas dispensing device; This mutual seal isolation of some material storage room and have respectively can airtight material storage room material storage room's door, be provided with oxygen concentration sensor in each material storage room, and have respectively gas outlet and air inlet; The gas outlet of this material storage room is communicated to the air inlet of nitrogen oxygen segregation apparatus by the gas delivery device, the air inlet of this material storage room is communicated with the gas outlet of vavuum pump by the gas delivery device; Described method comprises:
When oxygen concentration sensor sense some or certain several material storage room in oxygen concentration higher than when setting value, to the controller transmitted signal;
Controller is according to the signal controlling vavuum pump work of oxygen concentration sensor and control the gas delivery device and be communicated to the material storage room that needs replenish fresh-keeping gas;
When oxygen concentration was equal to or less than setting value in oxygen concentration sensor is sensed all material storage room, to the controller transmitted signal, controller was controlled vavuum pump and is quit work.
As a further improvement on the present invention, be communicated with foul smell and organic gas release unit between the gas outlet of described material storage room and nitrogen oxygen segregation apparatus, the oxygen rich gas that material storage room discharges then enters nitrogen oxygen segregation apparatus under the vavuum pump effect after this foul smell and the dehumidifying of organic gas release unit, breaking away from foul smell and organic gas.
As a further improvement on the present invention, the gas vent of described vavuum pump is connected with manual fresh-keeping gas inflated arm, on this inflation arm, valve is installed, and can open as required valve and treat the fresh-keeping gas of fresh-keeping foodstuff filling to other.
As a further improvement on the present invention, described nitrogen oxygen segregation apparatus is for separating the membrane type gas separator.
As a further improvement on the present invention, the air inlet of described nitrogen oxygen segregation apparatus is provided with the replenish air branch road, should replenish branch road and be provided with the additional check valve of case outer air, and after vavuum pump starts, can open the additional check valve of case outer air and replenish the case outer air to nitrogen oxygen segregation apparatus.
As a further improvement on the present invention, described foul smell and organic gas release unit are for separating membrane type gas separator or absorption type filtration deodorization device.
As a further improvement on the present invention, described air inlet is positioned at the bottom of described material storage room, and described gas vent is positioned at the upper end of described material storage room.
the present invention compared with prior art, due to the mutual seal isolation of several material storage room of fresh-keeping refrigerator of the present invention and have respectively can airtight material storage room material storage room's door, each material storage room has respectively gas outlet and air inlet, the air inlet of material storage room is communicated with respectively the fresh-keeping gas vent of nitrogen oxygen segregation apparatus by vavuum pump, the gas outlet of material storage room is communicated with respectively the air inlet of nitrogen oxygen segregation apparatus, simultaneously, the present invention also comprises the gas delivery device and controls described compression pump and the controller of gas dispensing device work, and the oxygen concentration sensor in material storage room, after adopting such structure, oxygen concentration sensor compares measured value and the setting value of oxygen concentration in real time, and then to the work of controller transmitted signal with control compression pump and gas dispensing device.Adopt the Air-conditioning system control method of above-mentioned fresh-keeping refrigerator, can satisfy different fresh-keeping food has the requirement of different fresh keeping gas parameters, to reach the effect that different food is obtained best preservation quality, and can independently control and substitution gas each airtight material storage room, has the prolongation fresh keeping time, improve preservation quality, reduce energy resource consumption, reduce the advantages such as cross pollution of food.
Description of drawings
Fig. 1 is the systematic schematic diagram of prior art fresh-keeping refrigerator.
Fig. 2 is the fresh-keeping refrigerator Air-conditioning system control method systematic schematic diagram of the embodiment of the present invention one.
Fig. 3 is the fresh-keeping refrigerator Air-conditioning system control method systematic schematic diagram of the embodiment of the present invention two.
The specific embodiment
Illustrate the specific embodiment of the present invention below in conjunction with accompanying drawing:
Embodiment one: as shown in Figure 2, a kind of fresh-keeping refrigerator 1 of the present invention, comprise several material storage room, each material storage room has respectively an air inlet and a gas outlet, and the gas outlet is in the upper end of material storage room, and air inlet is in the bottom of material storage room, this is because nitrogen is lighter than oxygen, when the fresh-keeping gas that is filled with is that after nitrogen-rich gas enters material storage room by air inlet, nitrogen can upwards waft, and the air of top is constantly taken away, and then reaches fast the purpose of gas displacement.Two material storage room 41 and 42 have been drawn as shown in Figure 2, material storage room 41 has gas outlet a1 and air inlet b1, material storage room 42 has gas outlet a2 and air inlet b2, gas outlet a1, a2 are in the upper end of material storage room, air inlet b1, b2 are in the bottom of material storage room, two material storage room 41 and 42 mutual seal isolation and have respectively can airtight material storage room material storage room's door 31 and 32, in order to guarantee sealing, be fitted with sealing strip 2 on airtight material storage room door 31,32, when airtight material storage room door 31,32 is closed and airtight material storage room 41,42 doorframe form and be sealed and matched.
Fresh-keeping refrigerator 1 also comprises the nitrogen oxygen segregation apparatus 13 that is arranged on outside material storage room, nitrogen oxygen segregation apparatus 13 is used for gas is carried out nitrogen oxygen separating treatment, the air inlet k of nitrogen oxygen segregation apparatus 13 is communicated with respectively material storage room 41,42 gas outlet a1, a2, its fresh-keeping gas vent h is communicated with respectively material storage room 41,42 air inlet b1, b2 through vavuum pump 20, and its oxygen enrichment gas outlet g can be in communication with the outside.The diffusion barrier of nitrogen oxygen segregation apparatus 13 can be board-like film or hollow-fibre membrane.
Be communicated with gas delivery device 8 between nitrogen oxygen segregation apparatus 13 and material storage room 41,42, this gas delivery device 8 has two groups of linkage valve c1/d1-e1/f1 and c2/d2-e2/f2, can optionally be communicated with respectively or simultaneously as required material storage room 41, material storage room 42. Material storage room 41,42 gas outlet a1, a2 are communicated with respectively foul smell and organic gas import c1, the c2 of gas delivery device 8, the foul smell of gas delivery device 8 and organic gas outlet e1, e2 are communicated with respectively the air inlet k of nitrogen oxygen segregation apparatus 13, material storage room 41,42 air inlet b1, b2 are communicated with respectively fresh-keeping gas vent d1, the d2 of gas delivery device 8, and fresh-keeping gas feed f1, the f2 of gas delivery device 8 is communicated with respectively the fresh-keeping gas vent h of nitrogen oxygen segregation apparatus 13 through vavuum pump 20.Fresh-keeping gas delivery device 8, nitrogen oxygen separation assembly 13, vavuum pump 20 have consisted of controlled atmosphere control system 16.
Fresh-keeping refrigerator 1 also comprises total refrigerator doors 19 and controller 6, controller 6 has input port part A, processing unit and delivery outlet part B, this controller adopts conventional signal controller, the input port of input port part A connects control panel 7, another four input ports connect respectively temperature sensor 17 and the oxygen concentration sensor 18 that is installed in airtight material storage room 41,42, the delivery outlet of delivery outlet part B connects vavuum pump 20, and another three delivery outlets are connected with fresh-keeping gas delivery device 8, oxygen enrichment air bleeding valve 12 and refrigeration system 5 respectively.Control panel 7 and controller 6 are interior can set and solidify required fresh-keeping gas component parameter and preservation temperature, and be arranged on airtight material storage room 41,42 in temperature sensor 17 and the current actual measurement parameter that provides of oxygen concentration sensor 18 and the temperature basis of comparing on, refrigeration system and Air-conditioning system are controlled in real time, be respectively a plurality of airtight material storage room the fresh-keeping gas component of Extraordinary and temperature are provided, thereby prevent the food cross pollution, extend fresh keeping time, improve preservation quality, energy savings consumption.Controller 6, control panel 7, temperature sensor 17 and oxygen concentration sensor 18 have consisted of the whole control system 21 of fresh-keeping refrigerator 1.
when the measured value of the oxygen concentration sensor 18 in material storage room 41 surpasses setting value, controller 6 starts the work of vavuum pump 20 and gas dispensing device 8, be that vavuum pump 20 is with the gas suction nitrogen oxygen segregation apparatus 13 of airtight material storage room 41, controller 6 is controlled one group of linkage valve of gas delivery device 8---namely is communicated with simultaneously with respective channel c1-e1 and the f1-d1 of material storage room 41, gas in material storage room 41 is from the c1-e1 passage of gas outlet a1 through fresh-keeping gas delivery device 8, enter nitrogen oxygen segregation apparatus 13 under the effect of vavuum pump 20, open replenish air check valve 11, can replenish the part fresh air to nitrogen oxygen segregation apparatus 13, 13 pairs of gases of nitrogen oxygen segregation apparatus carry out nitrogen oxygen to be separated, oxygen rich gas is discharged in outside air by oxygen enrichment gas outlet g, the fresh-keeping gas of rich nitrogen after processing passes through fresh-keeping gas outlet h through vavuum pump 20, the f1-d1 valve of gas delivery device 8 is admitted in the air inlet b1 of material storage room 41, realization is filled fresh-keeping gas to material storage room 41, so through some circulations, until the oxygen concentrations in material storage room 41 reach or lower than till the oxygen concentration parameter index of setting, this moment, oxygen concentration sensor 18 was to controller 6 transmitted signals, controller 6 is controlled vavuum pump 20 and is quit work, one group of linkage valve of gas delivery device 8---be that gas inlet and outlet c1-e1 and f1-d1 will disconnect path simultaneously, finally realized the displacement to material storage room's 41 interior gases, material storage room 41 is in rich nitrogen atmosphere, food in it is carried out effectively fresh-keeping, in like manner, in the time need to replacing the gas in material storage room 42, one group of gas inlet and outlet c2, e2 and f2, the d2 of corresponding gas delivery device 8 will be communicated with simultaneously, realization is filled fresh-keeping gas to material storage room 42, the above-mentioned cyclic process of process can realize the displacement to material storage room's 42 interior gases, when needs stop the gas displacement in material storage room 42, one group of linkage valve of gas delivery device 8, namely gas inlet and outlet c2, e2 and f2, d2 will disconnect path simultaneously.Like this, can reach respectively provides the purpose of the fresh-keeping gas component of Extraordinary to a plurality of airtight material storage room, thereby prevents the food cross pollution, extends fresh keeping time, improves preservation quality, energy savings consumption.
Fresh-keeping refrigerator 1 also comprises refrigeration system 5, controller 6, control panel 7 and temperature sensor 17, can pass through the preservation temperature that control panel 7 is set in material storage room, when the temperature sensor 17 in material storage room temperature in material storage room detected higher than design temperature the time, controller 6 starts 5 pairs of refrigerators of refrigeration system and freezes, until till reaching design temperature, because this content belongs to prior art, the present invention does not specifically launch narration at this.Equally, when the measured value of the temperature sensor 17 in airtight material storage room 41 surpassed setting value, controller 6 started the work of refrigerator refrigeration systems 5, and the processing of lowering the temperature of 5 pairs of refrigerators of refrigeration system is until till reaching the temperature parameter index of setting; In like manner, in the time need to lowering the temperature to the temperature in material storage room 42 also with above-mentioned operation principle.
When fresh-keeping gas component parameter or preservation temperature depart from settings again, controller 6 will send instruction again, repeat above-mentioned circulation, until till again reaching the parameter index or temperature that controlled atmosphere sets.
Further, can be connected with manual fresh-keeping gas inflated arm 14 on the gas vent j of vavuum pump 20, on this inflation arm 14, valve 15 is installed, can open valve 15 when needed, fresh-keeping gas externally is provided, such as fresh-keeping gas is filled with in other containers or packing material, the edible product such as other edible product such as rice class, wheat class, beans, fresh and dried goods class, greengrocery, meat, fruits, tealeaves class are carried out the normal temperature controlled atmosphere; The air inlet of nitrogen oxygen segregation apparatus 13 is provided with the replenish air branch road, should replenish branch road and be provided with the additional check valve 11 of case outer air, opening check valve 11 can carry out replenish air to nitrogen oxygen segregation apparatus 13, makes nitrogen oxygen segregation apparatus 13 can isolate enough nitrogen-rich gas and is filled with material storage room 41,42; The oxygen rich gas of nitrogen oxygen segregation apparatus 13 outlet g is provided with oxygen enrichment air bleeding valve 12, by oxygen enrichment air bleeding valve 12, can externally provide oxygen, and this oxygen can be used as him, as for indoor oxygen-enhanced or be connected to the kitchen to be used for gas-cooker combustion-supporting.
Embodiment two: owing to containing foul smell, organic gas and moisture in the gas in material storage room 41 and 42, remove these gases and be conducive to gas cleaning in the fresh-keeping and material storage room of food, so on the basis of embodiment one, as shown in Figure 3, be communicated with foul smell and organic gas release unit 9 between gas delivery device 8 and nitrogen oxygen segregation apparatus 13, the foul smell of gas delivery device 8 and organic gas outlet e1, e2 are communicated with the air inlet of foul smell and organic gas release unit 9, and the gas outlet of foul smell and organic gas release unit 9 is communicated with the air inlet k of nitrogen oxygen segregation apparatus 13.After carrying out the removal of foul smell, organic gas and moisture from material storage room 41 or 42, gas delivery device 8 gas out through foul smell and organic gas release unit 9, send into nitrogen oxygen segregation apparatus 13.This foul smell and organic gas release unit 9 can be and separate membrane type gas separator or absorption type filtration deodorization device.
Certainly, the airtight material storage room of above-mentioned all embodiment is not limited to two, can be arranged to as required a plurality ofly, but its principle is identical with the present invention.To sum up, the present invention can realize providing the purpose of the fresh-keeping gas component of Extraordinary to a plurality of airtight material storage room respectively, thereby prevents the food cross pollution, extends fresh keeping time, improves preservation quality, energy savings consumption.
Claims (7)
1. the Air-conditioning system control method of a fresh-keeping refrigerator, this fresh-keeping refrigerator comprise some for storage need fresh-keeping foodstuff material storage room (41,42), be used for providing to this material storage room (41,42) controller (6) of the nitrogen oxygen segregation apparatus (13) of fresh-keeping gas, the vavuum pump (20) that is communicated with the fresh-keeping gas vent (h) of this nitrogen oxygen segregation apparatus (13), gas delivery device (8) and control vavuum pump (20) and gas dispensing device (8); These some material storage room (41,42) mutually seal isolation and have respectively can airtight material storage room (41,42) material storage room's door (31,32), each material storage room is provided with oxygen concentration sensor (18) in (41,42), and has respectively gas outlet (a1, a2) and air inlet (b1, b2); The gas outlet (a1, a2) of this material storage room (41,42) is communicated to the air inlet (k) of nitrogen oxygen segregation apparatus (13) by gas delivery device (8), the air inlet (b1, b2) of this material storage room (41,42) is communicated with the gas outlet (j) of vavuum pump (20) by gas delivery device (8); Described method comprises:
When oxygen concentration sensor (18) sense some or certain several material storage room (41,42) in oxygen concentration higher than when setting value, to controller (6) transmitted signal;
Controller (6) is worked according to the signal controlling vavuum pump (20) of oxygen concentration sensor (18) and is controlled the material storage room (41,42) that gas delivery device (8) is communicated to needs to replenish fresh-keeping gas;
When oxygen concentration was equal to or less than setting value in oxygen concentration sensor (18) is sensed all material storage room (41,42), to controller (6) transmitted signal, controller (6) was controlled vavuum pump (20) and is quit work.
2. the Air-conditioning system control method of fresh-keeping refrigerator according to claim 1, it is characterized in that: be communicated with foul smell and organic gas release unit (9) between the gas outlet (a1, a2) of described material storage room (41,42) and nitrogen oxygen segregation apparatus (13), the oxygen rich gas that material storage room (41,42) discharges then enters nitrogen oxygen segregation apparatus (13) under vavuum pump (20) effect after this foul smell and organic gas release unit (9) dehumidifying, breaking away from foul smell and organic gas.
3. the Air-conditioning system control method of fresh-keeping refrigerator according to claim 1, it is characterized in that: the gas vent (j) of described vavuum pump (20) is connected with manual fresh-keeping gas inflated arm (14), on this inflation arm (14), valve (15) is installed, can opens as required valve (15) and treat the fresh-keeping gas of fresh-keeping foodstuff filling to other.
4. the Air-conditioning system control method of fresh-keeping refrigerator according to claim 1 is characterized in that: described nitrogen oxygen segregation apparatus (13) is for separating the membrane type gas separator.
5. the Air-conditioning system control method of fresh-keeping refrigerator according to claim 1, it is characterized in that: the air inlet of described nitrogen oxygen segregation apparatus (13) is provided with the replenish air branch road, should replenish branch road and be provided with the additional check valve (11) of case outer air, after vavuum pump (20) starts, can open the case outer air and replenish check valve (11) to the additional case outer air of nitrogen oxygen segregation apparatus (13).
6. the Air-conditioning system control method of fresh-keeping refrigerator according to claim 1 is characterized in that: described foul smell and organic gas release unit (9) are for separating membrane type gas separator or absorption type filtration deodorization device.
7. the Air-conditioning system control method of the described fresh-keeping refrigerator of any one according to claim 1 to 6, it is characterized in that: described air inlet (b1, b2) is positioned at the bottom of described material storage room (41,42), and described gas vent (a1, a2) is positioned at the upper end of described material storage room (41,42).
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| CN2012104115611A CN103090638A (en) | 2012-10-24 | 2012-10-24 | Method for controlling gas adjusting system of fresh-keeping refrigerator |
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| CN2012104115611A CN103090638A (en) | 2012-10-24 | 2012-10-24 | Method for controlling gas adjusting system of fresh-keeping refrigerator |
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| CN106642915A (en) * | 2016-12-09 | 2017-05-10 | 青岛海尔股份有限公司 | Refrigerating and freezing device with air-regulating fresh-keeping function |
| CN106679320A (en) * | 2016-12-09 | 2017-05-17 | 青岛海尔股份有限公司 | Cold storage and refrigeration device and control method thereof |
| CN106679277A (en) * | 2016-12-09 | 2017-05-17 | 青岛海尔股份有限公司 | Refrigerating and freezing device and control method thereof |
| CN107046784A (en) * | 2017-01-20 | 2017-08-15 | 成都百胜野牛科技有限公司 | Electronic and electrical equipment storing apparatus and electronic and electrical equipment |
| CN111480760A (en) * | 2019-01-29 | 2020-08-04 | 宁波方太厨具有限公司 | Household fresh food fresh-keeping device and fresh-keeping method |
| CN110793259A (en) * | 2019-10-08 | 2020-02-14 | 长虹美菱股份有限公司 | Refrigerator special area and control method |
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Application publication date: 20130508 |