CN103234319B - Controlled atmosphere refrigerator fresh-keeping system - Google Patents
Controlled atmosphere refrigerator fresh-keeping system Download PDFInfo
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- CN103234319B CN103234319B CN201310113859.9A CN201310113859A CN103234319B CN 103234319 B CN103234319 B CN 103234319B CN 201310113859 A CN201310113859 A CN 201310113859A CN 103234319 B CN103234319 B CN 103234319B
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Abstract
The invention discloses a kind of controlled atmosphere refrigerator fresh-keeping system, comprise controlled atmosphere refrigerator group, described controlled atmosphere refrigerator group has N number of controlled atmosphere refrigerator, it is characterized in that, also comprise nitrogen gas generating system, controlled atmosphere integrating device, described nitrogen gas generating system and controlled atmosphere integrating device are connected controlled atmosphere refrigerator group respectively.Controlled atmosphere refrigerator fresh-keeping system of the present invention can select the quantity of controlled atmosphere refrigerator according to the total useful load of fruits and vegetables, each controlled atmosphere refrigerator is all with independently refrigeration system, cold in-cabinet temperature is adjustable, the requirement of the reserve temperature needed for different fruits and vegetables can be met, classification storage can be carried out according to the kind of fruits and vegetables, nitrogen consumption can be reduced, and accurately can control composition and the ratio of the various gases in refrigerator, and the parameter such as humiture, there are good market prospects.
Description
Technical field
The present invention relates to a kind of fresh-keeping system, be specifically related to a kind of controlled atmosphere refrigerator fresh-keeping system.
Background technology
At present, controlled atmosphere freezer has become a kind of important preserving fruit and vegetable utilizing equipment.Controlled atmosphere freezer, by changing composition and the ratio of the various gases in storehouse, reaches the object of preserving fruit and vegetable utilizing insurance.But there is following shortcoming in controlled atmosphere freezer: 1. the bulky of controlled atmosphere freezer, and build up rear refrigeration volume be difficult to change, volume can not be selected according to the total useful load of fruits and vegetables, be not suitable for very much the place that naval vessel etc. is harsher to the volume requirement of equipment; 2. controlled atmosphere freezer can not carry out classification storage according to the kind of fruits and vegetables; 3., when entering storehouse picking, needing to consume certain nitrogen, therefore needing the loss constantly supplementing nitrogen; 4. be difficult to composition and the ratio of the various gases accurately controlled in storehouse, and the parameter such as humiture.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of controlled atmosphere refrigerator fresh-keeping system.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Controlled atmosphere refrigerator fresh-keeping system, comprise controlled atmosphere refrigerator group, described controlled atmosphere refrigerator group at least comprises a controlled atmosphere refrigerator, it is characterized in that, also comprise nitrogen gas generating system, controlled atmosphere integrating device, described nitrogen gas generating system and controlled atmosphere integrating device are connected controlled atmosphere refrigerator group respectively.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, it is characterized in that, described nitrogen gas generating system comprises air compressor machine cooling driers module, controlled atmosphere all-in-one module, controlled atmosphere all-in-one module described in described air compressor machine cooling driers model calling, controlled atmosphere refrigerator described in described controlled atmosphere all-in-one model calling.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, it is characterized in that, described air compressor machine cooling driers module comprises air compressor machine, first order filter, cooling driers, described controlled atmosphere all-in-one module comprises second level filter, third level filter, heater, nitrogen separation device, described air compressor machine connects first order filter, first order filter connects cooling driers, described cooling driers connects second level filter, second level filter connects third level filter, third level filter connects heater, described heater connects nitrogen separation device, nitrogen separation device connects controlled atmosphere refrigerator.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, it is characterized in that, air compressor machine connects air accumulator, air accumulator connects first order filter, temperature sensor is connected with between cooling driers and first order filter, pressure switch is connected with between third level filter and heater, described heater is controlled by temperature controller, nitrogen separation device connects purity control valve, purity control valve connects controlled atmosphere refrigerator, flowmeter is provided with between purity control valve and controlled atmosphere refrigerator, described air compressor machine, cooling driers, first order filter, second level filter, third level filter is connected to drainage arrangement, nitrogen separation device is connected with oxygen rich exhaust device.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, it is characterized in that, described drainage arrangement comprises drain solenoid valve, condensate draining pipeline, described oxygen rich exhaust device comprises oxygen enrichment electromagnetic exhaust valve, described air compressor machine, cooling driers, first order filter, second level filter, third level filter is connected to condensate draining pipeline, drain solenoid valve is connected with between air compressor machine and condensate draining pipeline, drain solenoid valve is connected with between second level filter and condensate draining pipeline, described nitrogen separation device connects oxygen enrichment electromagnetic exhaust valve, magnetic valve is provided with between flowmeter and controlled atmosphere refrigerator.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, is characterized in that, first order filter is C level filter, and second level filter is T level filter, and third level filter is A level filter.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, is characterized in that, nitrogen separation device is hollow-fibre membrane group.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, it is characterized in that, described controlled atmosphere integrating device comprises gas detect control system, MCS, ethylene removal system, and described gas detect control system, MCS, ethylene removal system connect described controlled atmosphere refrigerator respectively.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, it is characterized in that, described controlled atmosphere refrigerator connects main exhaust duct, magnetic valve is provided with between controlled atmosphere refrigerator and main exhaust duct, gas detect control system connects gas detect and gathers house steward, gas detect gathers house steward and connects controlled atmosphere refrigerator, and controlled atmosphere refrigerator and gas detect gather between house steward and be provided with magnetic valve, is provided with magnetic valve between controlled atmosphere refrigerator and MCS, ethylene removal system.
Aforesaid controlled atmosphere refrigerator fresh-keeping system, is characterized in that, described ethylene removal system comprises ozone generating-device.
Usefulness of the present invention is: controlled atmosphere refrigerator fresh-keeping system of the present invention can according to the total useful load of fruits and vegetables to select volume, classification storage can be carried out according to the kind of fruits and vegetables, nitrogen consumption can be reduced, and accurately can control composition and the ratio of the various gases in storehouse, and the parameter such as humiture, there are good market prospects.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of controlled atmosphere refrigerator fresh-keeping system of the present invention;
Fig. 2 is a kind of physical unit connection diagram of controlled atmosphere refrigerator fresh-keeping system of the present invention;
Fig. 3 is the enlarged diagram of air compressor machine cooling driers module in Fig. 2;
Fig. 4 is the enlarged diagram of controlled atmosphere all-in-one module in Fig. 2;
Fig. 5 is the enlarged diagram of controlled atmosphere integrating device and controlled atmosphere refrigerator group in Fig. 2.
The implication of Reference numeral in figure:
1, nitrogen gas generating system, 2, controlled atmosphere integrating device, 3, controlled atmosphere refrigerator group, 4, air compressor machine, 5, air accumulator, 6, first order filter, 7, cooling driers, 8, temperature sensor, 9, coolant outlet, 10, cooling water inlet, 11, condensate draining pipeline, 12, air compressor machine cooling driers module outlet, 13, drain solenoid valve, 14, second level filter, 15, third level filter, 16, pressure switch, 17, temperature controller, 18, heater, 19, electric cabinet, 20, motor, 21, oxygen enrichment electromagnetic exhaust valve, 22, flexible connection, 23, purity control valve, 24, flowmeter, 25, controlled atmosphere refrigerator, 26, magnetic valve, 27, main exhaust duct, 28, gas detect gathers house steward, 29, outlet, 30, gas detect control system, 31, MCS, 32, ethylene removal system, 33, air compressor machine cooling driers module, 34, controlled atmosphere all-in-one module, 35, nitrogen separation device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
With reference to shown in Fig. 1, controlled atmosphere refrigerator fresh-keeping system of the present invention, comprise controlled atmosphere refrigerator group 3, controlled atmosphere refrigerator group 3 at least comprises a controlled atmosphere refrigerator 25, also comprise nitrogen gas generating system 1, controlled atmosphere integrating device 2, nitrogen gas generating system 1 and controlled atmosphere integrating device 2 are connected controlled atmosphere refrigerator group 3 respectively.Controlled atmosphere refrigerator fresh-keeping system of the present invention does not limit its concrete application scenario, and also do not limit the kind of the article of its storage, in reality, it is highly suitable for the environment such as naval vessel, and is applicable to storage fruits and vegetables etc.
In the present invention, nitrogen gas generating system 1 can manufacture nitrogen, the nitrogen that nitrogen gas generating system 1 manufactures enters controlled atmosphere refrigerator group 3, stored with fruits and vegetables in controlled atmosphere refrigerator group 3, nitrogen can reduce the oxygen content in controlled atmosphere refrigerator group 3 greatly, the oxygen content reducing environment, to lower fruits and vegetables respiratory intensity, reduces loss and the evaporation of itself nutriment.Controlled atmosphere integrating device 2 of the present invention connects controlled atmosphere refrigerator group 3, its role is to the various parameters in controlled atmosphere refrigerator group 3, such as temperature, humidity, gas content etc. further control, regulate, thus reach the shelf-life extending fruits and vegetables in controlled atmosphere refrigerator group 3 further.
The present invention does not limit the concrete formation of nitrogen gas generating system 1, controlled atmosphere integrating device 2, controlled atmosphere refrigerator group 3, and those skilled in the art can according to the actual selection carrying out various module.
As a preferred embodiment of the present invention, nitrogen gas generating system 1 of the present invention can comprise air compressor machine cooling driers module 33, controlled atmosphere all-in-one module 34, and air compressor machine cooling driers module 33 connects controlled atmosphere all-in-one module 34, and controlled atmosphere all-in-one module 34 connects controlled atmosphere refrigerator 25.As shown in Figure 2, Figure 3 and Figure 4.Air carries out compressing by air compressor machine cooling driers module 33, cool, dry, again will through overcompression, cooling, dried air transmission to controlled atmosphere all-in-one module 34, controlled atmosphere all-in-one module 34 carries out nitrogen separation to the gas transmitted again, more isolated nitrogen is transferred to the controlled atmosphere refrigerator 25 in controlled atmosphere refrigerator group 3.The Main Function of air compressor machine cooling driers module 33 is first to be compressed by air, because the air after compression exists larger heat and moisture, be unfavorable for the nitrogen separation of controlled atmosphere all-in-one module 34, therefore air compressor machine cooling driers module 33 also need the air after by compression to carry out cooling, dry, air after compression after the cooling period, most of moisture in air is condensed, and can obtain compression, cooling, dry air thus.
The present invention does not limit the specific implementation of air compressor machine cooling driers module 33, controlled atmosphere all-in-one module 34, but as a kind of preferred version, can with reference to the parts connected mode of Fig. 2 to Fig. 4.Arrow shown in Fig. 2 to Fig. 4 is the transmission direction of gas.As Fig. 2, Fig. 3, air compressor machine cooling driers module 33 comprises air compressor machine 4, first order filter 6, cooling driers 7, controlled atmosphere all-in-one module 34 comprises second level filter 14, third level filter 15, heater 18, nitrogen separation device 35, air compressor machine 4 connects first order filter 6, first order filter 6 connects cooling driers 7, cooling driers 7 connects second level filter 14, second level filter 14 connects third level filter 15, third level filter 15 connects heater 18, heater 18 connects nitrogen separation device 35, and nitrogen separation device 35 connects controlled atmosphere refrigerator 25.
Here, the effect of air compressor machine 4 is compressed air.Air compressor machine 4 is connected with coolant outlet 9 and cooling water inlet 10, like this, the most of moisture in air can be condensed and discharge by cooling water.After air is compressed, air compressor machine 4 of the present invention connects cooling driers 7 through first order filter 6, and first order filter 6 is a kind of accurate filters, and they can a lot of impurity in filtered air, and during actual motion, first order filter 6 is preferably C level filter.Compressed air enters cooling driers 7 after first order filter 6, cooling driers 7 is by pressure-air cooling, wherein will be separated eliminating by most of water vapor condensation, cooling driers 7 is through second level filter 14, third level filter 15 connects heater 18, the second level of the present invention filter 14, third level filter 15 equally can a lot of impurity in filtered air, during actual motion, second level filter 14 can be set, the Filter Precision of third level filter 15 is by thick extremely essence, namely the filtering accuracy of third level filter 15 is higher than second level filter 14, this makes it possible to provide clean compressed air.Further, as preferably, second level filter 14 is T level filter, and third level filter 15 is A level filter.
Compressed air needed to heat before entering nitrogen separation device 35, the effect of heater 18 is heated compressed air exactly, the effect of nitrogen separation device 35 is separation of nitrogen, the present invention does not limit the concrete structure of nitrogen separation device 35, but as preferred, nitrogen separation device 35 can be hollow-fibre membrane group.Hollow-fibre membrane group comprises organizes hollow-fibre membrane more, and one group of hollow-fibre membrane contains millions of fibers, the size of each fiber and the hairline of people similar.Under stress, air enters from one of fiber, is then arrived the other end of hollow-fibre membrane group of the present invention by fibre inner diameter.When compressed air touches hollow-fibre membrane, gas is just separated." fast " gas is as oxygen, and carbon dioxide and aqueous vapor rapid permeability fibre wall are with the exhaust outlet of atmospheric pressure through hollow-fibre membrane group side.Nitrogen can not cross fiber by rapid permeability under flow regime, but the other end flowing to fiber enters the air chamber of hollow-fibre membrane group termination.The nitrogen of very high purity can be obtained thus.Nitrogen separation device 35 connects controlled atmosphere refrigerator 25, therefore the nitrogen of acquisition can be transferred to controlled atmosphere refrigerator 25.
Can also be improved on above-mentioned basis and be optimized during actual motion of the present invention, as shown in Figure 2.The present invention can connect air accumulator 5 below at air compressor machine 4, and air accumulator 5 connects first order filter 6, increases the strainability that air accumulator 5 can strengthen first order filter 6.In addition, can connect temperature sensor 8 between cooling driers 7 and first order filter 6, temperature sensor 8 can detect cooling driers 7 outlet temperature, and whether reflection cooling driers 7 is working properly.Can Bonding pressure switch 16 between third level filter 15 and heater 18, this is because filter all has working life, pressure switch 16 can reflect the working life of filter, when pressure switch 16 is reported to the police, just should change filter.This pressure switch 16 can play the effect of prompting changing filter.In addition, heater 18 is controlled by temperature controller 17, and temperature controller 17 completes the setting of the heating-up temperature to nitrogen separation device 35, control and display.The present invention can also connect purity control valve 23 in the outlet of nitrogen separation device 35, and purity control valve 23 connects controlled atmosphere refrigerator 25, so just film group can be regulated to export the purity of nitrogen by purity control valve 23.In addition, between purity control valve 23 and controlled atmosphere refrigerator 25, flowmeter 24 can also be set, to measure the flow of nitrogen.Nitrogen is delivered in fresh-keeping refrigerator and is carried out dilution displacement and fall oxygen.In addition, air compressor machine 4 of the present invention, cooling driers 7, first order filter 6, second level filter 14, third level filter 15 are connected to drainage arrangement, enter the compressed air drying in nitrogen separation device 35 with guarantee, clean, and nitrogen separation device 35 is connected with oxygen rich exhaust device, thus can effectively gas higher for isolated for nitrogen separation device 35 oxygen content be got rid of by oxygen rich exhaust device.In addition, controlled atmosphere all-in-one module 34 can also comprise electric cabinet 19, and electric cabinet 19 is made up of consumer unit, control cabinet, detecting portion, and electric cabinet 19 connects motor 20, carries out Power supply and control to various valve, equipment etc.
Further, the present invention preferably can also be arranged drainage arrangement, oxygen rich exhaust device.Drainage arrangement as Fig. 2 comprises drain solenoid valve 13, condensate draining pipeline 11, oxygen rich exhaust device comprises oxygen enrichment electromagnetic exhaust valve 21, air compressor machine 4, cooling driers 7, first order filter 6, second level filter 14, third level filter 15 are connected to condensate draining pipeline 11, drain solenoid valve 13 is connected with between air compressor machine 4 and condensate draining pipeline 11, drain solenoid valve 13 is connected with between second level filter 14 and condensate draining pipeline 11, nitrogen separation device 35 connects oxygen enrichment electromagnetic exhaust valve 21, is provided with magnetic valve 26 between flowmeter 24 and controlled atmosphere refrigerator 25.Above-mentioned setting can make drainage arrangement, oxygen rich exhaust device can better run.
Further, as preferably, controlled atmosphere integrating device 2 of the present invention can comprise gas detect control system 30, MCS 31, ethylene removal system 32, and gas detect control system 30, MCS 31, ethylene removal system 32 connect controlled atmosphere refrigerator 25 respectively.As shown in Fig. 2, Fig. 5.The effect of gas detect control system 30 is to detect the parameter such as various gas ratios, temperature in controlled atmosphere refrigerator 25, control, and the humidity in MCS 31 pairs of controlled atmosphere refrigerators 25 controls, ethylene removal system 32 can reduce the ethylene contents in controlled atmosphere refrigerator 25.The present invention does not limit the actual component of gas detect control system 30, MCS 31, ethylene removal system 32, and those skilled in the art can be selected according to reality.As preferably, ethylene removal system 32 comprises ozone generating-device.Ozone generating-device can produce ozone, after the ozone delivery of generation enters controlled atmosphere refrigerator 25, can fungus and mildew resistance fast decoupled ethene, and to slow down fruits and vegetables metabolism, reach the object removing ethene, effectively prevent fruits and vegetables from rotting.
The present invention adopts the reason of MCS 31 to be, and the nitrogen produced from nitrogen gas generating system 1 is very dry, for preventing the excessive drying loss of fruits and vegetables, improve fresh-keeping effect, constantly keep the relative humidity in controlled atmosphere refrigerator 25, for this reason controlled atmosphere refrigerator 25 built with MCS 31 to regulate humidity.
Further, controlled atmosphere refrigerator 25 of the present invention connects main exhaust duct 27, is provided with magnetic valve 26 between controlled atmosphere refrigerator 25 and main exhaust duct 27, this makes it possible to be exhausted more easily.And the waste gas that controlled atmosphere refrigerator 25 produces can be discharged through outlet 29 by main exhaust duct 27.In addition, gas detect control system 30 connects gas detect collection house steward 28, gas detect gathers house steward 28 and connects controlled atmosphere refrigerator 25, controlled atmosphere refrigerator 25 and gas detect gather between house steward 28 and are provided with magnetic valve 26, are provided with magnetic valve 26 between controlled atmosphere refrigerator 25 and MCS 31, ethylene removal system 32.This set is conducive to the operation of gas detect control system 30.
Controlled atmosphere refrigerator fresh-keeping system automaticity of the present invention is high, can work in unmanned situation.In addition, pipeline of the present invention can also adopt flexible connection 22 on connecting, and air compressor machine cooling driers module 33 as shown in Figure 2 exports between 12 and second level filter 14 and just have employed flexible connection 22.
Controlled atmosphere refrigerator fresh-keeping system of the present invention oxygen content, ethylene contents and factor such as humidity, temperature from control storage environment are set about, while keeping the cryogenic conditions be suitable for, reduce the oxygen content of environment to lower fruits and vegetables respiratory intensity, reduce loss and the evaporation of itself nutriment, the decomposition of suppression pectin and ethene are to the dematuration of fruits and vegetables, thus make fruits and vegetables keep fresh ready state more muchly, extend shelf-life.
Controlled atmosphere refrigerator fresh-keeping system of the present invention can select volume according to the total useful load of fruits and vegetables, classification storage can be carried out according to the kind of fruits and vegetables, the humiture requirement that different cultivars fruits and vegetables reservoir needs can be met, decrease the energy consumption of nitrogen processed again after the picking of storehouse, and accurately can control composition and the ratio of the various gases in storehouse, and the parameter such as humiture, there are good market prospects.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (5)
1. controlled atmosphere refrigerator fresh-keeping system, comprise controlled atmosphere refrigerator group, described controlled atmosphere refrigerator group at least comprises a controlled atmosphere refrigerator, it is characterized in that, also comprise nitrogen gas generating system, controlled atmosphere integrating device, described nitrogen gas generating system and controlled atmosphere integrating device are connected controlled atmosphere refrigerator group respectively, described nitrogen gas generating system comprises air compressor machine cooling driers module, controlled atmosphere all-in-one module, controlled atmosphere all-in-one module described in described air compressor machine cooling driers model calling, controlled atmosphere refrigerator described in described controlled atmosphere all-in-one model calling, described air compressor machine cooling driers module comprises air compressor machine, first order filter, cooling driers, described controlled atmosphere all-in-one module comprises second level filter, third level filter, heater, nitrogen separation device, described air compressor machine connects first order filter, first order filter connects cooling driers, described cooling driers connects second level filter, second level filter connects third level filter, third level filter connects heater, described heater connects nitrogen separation device, and nitrogen separation device connects controlled atmosphere refrigerator, air compressor machine connects air accumulator, air accumulator connects first order filter, temperature sensor is connected with between cooling driers and first order filter, pressure switch is connected with between third level filter and heater, described heater is controlled by temperature controller, nitrogen separation device connects purity control valve, purity control valve connects controlled atmosphere refrigerator, flowmeter is provided with between purity control valve and controlled atmosphere refrigerator, described air compressor machine, cooling driers, first order filter, second level filter, third level filter is connected to drainage arrangement, nitrogen separation device is connected with oxygen rich exhaust device, described drainage arrangement comprises drain solenoid valve, condensate draining pipeline, described oxygen rich exhaust device comprises oxygen enrichment electromagnetic exhaust valve, described air compressor machine, cooling driers, first order filter, second level filter, third level filter are connected to condensate draining pipeline, drain solenoid valve is connected with between air compressor machine and condensate draining pipeline, drain solenoid valve is connected with between second level filter and condensate draining pipeline, described nitrogen separation device connects oxygen enrichment electromagnetic exhaust valve, is provided with magnetic valve between flowmeter and controlled atmosphere refrigerator, described controlled atmosphere integrating device comprises gas detect control system, MCS, ethylene removal system, and described gas detect control system, MCS, ethylene removal system connect described controlled atmosphere refrigerator respectively.
2. controlled atmosphere refrigerator fresh-keeping system according to claim 1, is characterized in that, first order filter is C level filter, and second level filter is T level filter, and third level filter is A level filter.
3. controlled atmosphere refrigerator fresh-keeping system according to claim 1, is characterized in that, nitrogen separation device is hollow-fibre membrane group.
4. controlled atmosphere refrigerator fresh-keeping system according to claim 1, it is characterized in that, described controlled atmosphere refrigerator connects main exhaust duct, magnetic valve is provided with between controlled atmosphere refrigerator and main exhaust duct, gas detect control system connects gas detect and gathers house steward, gas detect gathers house steward and connects controlled atmosphere refrigerator, and controlled atmosphere refrigerator and gas detect gather between house steward and be provided with magnetic valve, is provided with magnetic valve between controlled atmosphere refrigerator and MCS, ethylene removal system.
5. controlled atmosphere refrigerator fresh-keeping system according to claim 1, is characterized in that, described ethylene removal system comprises ozone generating-device.
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| CN201310113859.9A CN103234319B (en) | 2013-04-03 | 2013-04-03 | Controlled atmosphere refrigerator fresh-keeping system |
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| CN201310113859.9A CN103234319B (en) | 2013-04-03 | 2013-04-03 | Controlled atmosphere refrigerator fresh-keeping system |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103851866A (en) * | 2014-02-21 | 2014-06-11 | 无锡德林船舶设备有限公司 | Air-conditioning refrigerating device for ships |
| CN104407585A (en) * | 2014-11-13 | 2015-03-11 | 天津森罗科技股份有限公司 | Control device of fruit and vegetable air-conditioning fresh-keeping box |
| CN106016950B (en) * | 2016-05-26 | 2018-08-10 | 青岛海尔股份有限公司 | The nitrogen control method processed and device of refrigerator |
| CN106052254B (en) * | 2016-05-30 | 2018-10-12 | 青岛海尔股份有限公司 | Refrigerating device |
| CN109028749B (en) * | 2018-07-17 | 2021-07-20 | 陕西专壹知识产权运营有限公司 | Pressure regulating type fresh-keeping refrigerator |
| CN109393292A (en) * | 2018-11-15 | 2019-03-01 | 中国联合工程有限公司 | A kind of Chinese medicine controlled atmosphere cold storage curing system and its operation method |
| CN114259002A (en) * | 2021-12-24 | 2022-04-01 | 天津森罗科技股份有限公司 | Construction method and device of modified atmosphere preservation device |
| CN114223714A (en) * | 2021-12-29 | 2022-03-25 | 天津森罗科技股份有限公司 | Modified atmosphere preservation system and design method |
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Address after: No. 88, Shidai Avenue, Liuhe Economic Development Zone, Nanjing, Jiangsu 210007 Patentee after: NANJING HENG XINGDA MECHANICAL AND ELECTRICAL EQUIPMENT Co.,Ltd. Address before: No. 2, youyihe Road, Baixia District, Nanjing, Jiangsu 210007 Patentee before: NANJING HENG XINGDA MECHANICAL AND ELECTRICAL EQUIPMENT Co.,Ltd. |