CN201233145Y - Air-adjusting refrigerator by employing nitrogen making device by using pressure swing adsorption process - Google Patents
Air-adjusting refrigerator by employing nitrogen making device by using pressure swing adsorption process Download PDFInfo
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- CN201233145Y CN201233145Y CNU2008200137589U CN200820013758U CN201233145Y CN 201233145 Y CN201233145 Y CN 201233145Y CN U2008200137589 U CNU2008200137589 U CN U2008200137589U CN 200820013758 U CN200820013758 U CN 200820013758U CN 201233145 Y CN201233145 Y CN 201233145Y
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- refrigerator
- nitrogen
- swing adsorption
- pressure swing
- adsorption device
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Abstract
The utility model relates to an air conditioning refrigerator by using pressure swing adsorption nitrogen-making device. The air conditioning refrigerator comprises a pressure swing adsorption nitrogen-making device, a moisture separator, a one-way valve, a nitrogen inlet pipe, a control switch, an electric control part and a refrigerator. The pressure swing adsorption nitrogen-making device comprises an oil-free lubrication compressor, a valve, a self-drying absorber, a one-way valve, a throttle valve, a filter and so on. The air in the refrigerator and the outside can be separated through the device. 90 percent to 97 percent nitrogen can be produced, and the nitrogen can be sent into the refrigerating chamber of the refrigerator. The pressure swing adsorption nitrogen-making device is installed on the back of the refrigerator and beside the refrigerating compressor. The nitrogen outlet is connected with the upper part of the refrigerating chamber through the nitrogen inlet pipe. The air outlet of the refrigerator is arranged on the condensed water outlet. Therefore, the position which is originally provided with the condensed water drip try is provided with the moisture separator and the exhaust one-way valve. The control switch of the nitrogen-making device is installed on the door of the refrigerator. The starting and the working time of the nitrogen-making device are controlled by the control switch on the door and the electric control part.
Description
Affiliated technical field
The utility model relates to food preservative technology and refrigerator technical field, definite a kind of controlled atmosphere refrigerator that adopts the making nitrogen by pressure swing adsorption device of saying so.
Technical background
At present, food preservative technology mainly contains five kinds of modes such as preservation by low temperature, controlled atmosphere, physical fresh-keeping, fresh chemically and biological preservation, and controlled atmosphere technology is not wherein destroyed the taste and the quality of food because its fresh keeping time is long, is rapidly developed.China's controlled atmosphere technology is started late, and now just build some large-scale air-conditioned cold stores, and the controlled atmosphere technology and equipment in food transport, sale and process of consumption still belongs to blank.Controlled atmosphere and technique of refrigeration combine fresh-keeping better effects if, and the controlled atmosphere refrigerator becomes new developing direction.But, all concentrate on the membrane separation technique aspect as the research of the important component part air-separating plant (abbreviation air separation unit) of controlled atmosphere refrigerator.Most of food fresh keeping is between 3%-10% to the optimum value that the oxygen concentration in the gas requires, and this just requires air separation unit will reach between the 90%-97% by the nitrogen gas concn in the refrigerator.And membrane separation technique is difficult to reach this index, causes the slower development of controlled atmosphere refrigerator.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of controlled atmosphere refrigerator that adopts the making nitrogen by pressure swing adsorption device, this controlled atmosphere refrigerator is by the making nitrogen by pressure swing adsorption device, refrigerator exhaust outlet moisture trap, check valve, the nitrogen air inlet pipe, gauge tap, automatically controlled part and refrigerator are formed, the making nitrogen by pressure swing adsorption device is by non-lubricated compressor, valve, the self-drying type absorber, check valve, choke valve, compositions such as filter, by this covering device, with in the refrigerator and the oxygen separation of extraneous air come out, produce the nitrogen of 90%-97%, and nitrogen sent in the cold compartment of refrigerator, controlled atmosphere and technique of refrigeration combine makes food fresh keeping reach best effect.Realize the purpose of this utility model, a kind of controlled atmosphere refrigerator that adopts the making nitrogen by pressure swing adsorption device.
The technical scheme that its technical problem that solves the utility model adopts is: as shown in Figure 1, the gas that outside air passes through behind the air cleaner and refrigerator is discharged enters the non-lubricated compressor in the making nitrogen by pressure swing adsorption device together.In the making nitrogen by pressure swing adsorption device, air after the compression enters left side self-drying type absorber through solenoid directional control valve, when compressed air passes through the bottom of self-drying type absorber, the moisture that will be condensed by the drainage filter core behind diffusion, centrifugal cyclone is retained down, and dry compressed air enters absorber top.Under pressure, the carbon molecular sieve adsorption of oxygen, and nitrogen is discharged the making nitrogen by pressure swing adsorption device through check valve and exhaust shutter.Entering in the cold compartment of refrigerator by the nitrogen air inlet pipe.Wherein a part of nitrogen enters in the right side self-drying type absorber that is in desorption state through intake-air throttle valve and carries out blowback, and oxygen remaining after the desorb is blown off, and improves the adsorption efficiency of molecular sieve.The oxygen rich gas that desorb is discharged together enters in the atmosphere through solenoid directional control valve together with isolated moisture content.Owing in refrigerator, charge into nitrogen, be small malleation in the refrigerator, air original in the refrigerator is discharged, this part air enters the compressor of making nitrogen by pressure swing adsorption device through check valve after moisture trap separates moisture content.After a circulation, the reverse battery valve switches, and left side self-drying type absorber enters the decompression desorption state, and right side self-drying type absorber enters the pressurization adsorbed state, enters next circulation, and constantly separation of air charges into nitrogen in refrigerator.Regulating exhaust shutter can control system pressure and extraction flow, thereby the concentration of control nitrogen.The unlatching of making nitrogen by pressure swing adsorption device and working time are assigned to control by the gauge tap and the electric control part that are located on the refrigerator doors, refrigerator doors is opened at every turn, when closing making nitrogen by pressure swing adsorption device start behind the door, to the indoor inflated with nitrogen of refrigerator cold-storage, when reaching setting-up time, the indoor nitrogen that is full of of refrigerator cold-storage, the making nitrogen by pressure swing adsorption device shuts down automatically, therefore after having only the each unlatching of refrigerator doors, the making nitrogen by pressure swing adsorption device is just worked.Reach the purpose of this utility model.
The beneficial effects of the utility model are that the utility model is not only simple in structure, cost is low, control is convenient.And can regulate nitrogen gas concn, adapt to the use of different food products different field.Comprise refrigerator, showcase, refrigerating transport vehicle etc.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the system schematic that adopts the controlled atmosphere refrigerator of making nitrogen by pressure swing adsorption device
Fig. 2 is the structural representation that adopts the controlled atmosphere refrigerator of making nitrogen by pressure swing adsorption device
1. air cleaners among the figure, 2. non-lubricated compressor, 3. solenoid directional control valve, 4. oxygen rich gas exhaust outlet, 5. left side self-drying type absorber, 6. right side self-drying type absorber, 7. intake-air throttle valve, 8. check valve, 9. intake-air throttle valve, 10. check valve 11. exhaust shutters, 12. refrigerators (or showcase, refrigerating transport vehicle), 13. moisture traps, 14. check valve, 15. nitrogen air inlet pipe, 16. gauge taps, 17. automatically controlled part, 18. making nitrogen by pressure swing adsorption devices.
The specific embodiment
In Fig. 1, non-lubricated compressor (2) air inlet links to each other with the check valve (14) of air cleaner (1), refrigerator exhaust outlet, non-lubricated compressor (2) exhaust outlet links to each other with solenoid directional control valve (3), two exhaust outlets of solenoid directional control valve (3) link to each other with two self-drying type absorbers (5,6) bottom respectively, two self-drying type absorbers (5,6) top is installed check valve (8,10) and intake-air throttle valve (7,9) respectively, exhaust shutter (11) is installed in the nitrogen exhaust outlet of making nitrogen by pressure swing adsorption device, has formed making nitrogen by pressure swing adsorption device (18) with top.Nitrogen outlet is connected with the refrigerating chamber of refrigerator (12) by nitrogen air inlet pipe (15).The air inlet of refrigerator (12) is located at the top of refrigerating chamber usually, and the exhaust outlet of refrigerator (12) is located at the discharge outlet place of condensed water usually, and moisture trap (13) and exhaust check valve (14) therefore are installed herein.
In Fig. 2, making nitrogen by pressure swing adsorption device (18) is installed in the next door of refrigerator back refrigeration compressor, nitrogen outlet is connected with the top of refrigerator (12) refrigerating chamber by nitrogen air inlet pipe (15), the exhaust outlet of refrigerator (12) is located at the discharge outlet place of condensed water, therefore in the place of putting the condensed water water dish originally moisture trap (13) and exhaust check valve (14) are being installed, the gauge tap of nitrogen-making device (16) be installed in refrigerator (12) on.By the unlatching and the working time of gauge tap on the door (16) and automatically controlled part (17) control nitrogen-making device.
By the explanation of the above-mentioned specific embodiment, according to described operation principle of the present utility model and embodiment, just can reach the purpose of this utility model, have nothing to do with the type selecting of accessories such as non-lubricated compressor and valve and the form size of refrigerator body.Every technical solutions of the utility model content that do not break away from, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification all belong to the protection domain of technical solutions of the utility model.
Claims (4)
1. controlled atmosphere refrigerator that adopts the making nitrogen by pressure swing adsorption device.It is characterized in that: this device is made up of making nitrogen by pressure swing adsorption device, refrigerator exhaust outlet moisture trap, check valve, nitrogen air inlet pipe, gauge tap, automatically controlled part and refrigerator.
2. a kind of controlled atmosphere refrigerator that adopts the making nitrogen by pressure swing adsorption device according to claim 1, it is characterized in that: the making nitrogen by pressure swing adsorption device is made up of non-lubricated compressor, valve, self-drying type absorber, check valve, choke valve, filter etc.
3. a kind of controlled atmosphere refrigerator that adopts the making nitrogen by pressure swing adsorption device according to claim 1 is characterized in that: the gas that refrigerator is discharged and through the outside air behind the air cleaner enters the non-lubricated compressor of making nitrogen by pressure swing adsorption device together.
4. a kind of controlled atmosphere refrigerator that adopts the making nitrogen by pressure swing adsorption device according to claim 1, it is characterized in that: the unlatching of making nitrogen by pressure swing adsorption device and working time are assigned to control by the gauge tap and the electric control part that are located on the refrigerator doors, refrigerator doors is opened at every turn, when closing making nitrogen by pressure swing adsorption device start behind the door, to the indoor inflated with nitrogen of refrigerator cold-storage, when reaching setting-up time, the indoor nitrogen that is full of of refrigerator cold-storage, the making nitrogen by pressure swing adsorption device shuts down automatically, therefore after having only the each unlatching of refrigerator doors, the making nitrogen by pressure swing adsorption device is just worked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200137589U CN201233145Y (en) | 2008-07-01 | 2008-07-01 | Air-adjusting refrigerator by employing nitrogen making device by using pressure swing adsorption process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200137589U CN201233145Y (en) | 2008-07-01 | 2008-07-01 | Air-adjusting refrigerator by employing nitrogen making device by using pressure swing adsorption process |
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| Publication Number | Publication Date |
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| CN201233145Y true CN201233145Y (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200137589U Expired - Fee Related CN201233145Y (en) | 2008-07-01 | 2008-07-01 | Air-adjusting refrigerator by employing nitrogen making device by using pressure swing adsorption process |
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| CN (1) | CN201233145Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923613A (en) * | 2016-04-27 | 2016-09-07 | 青岛海尔股份有限公司 | Nitrogen production device and refrigerator |
| CN105953495A (en) * | 2016-04-27 | 2016-09-21 | 青岛海尔股份有限公司 | Cold storage refrigerating device and control method thereof |
| CN106052254A (en) * | 2016-05-30 | 2016-10-26 | 青岛海尔股份有限公司 | Cold storage and refrigeration device |
| CN106091532A (en) * | 2016-05-31 | 2016-11-09 | 青岛海尔股份有限公司 | Nitrogen control method processed and refrigerating equipment for refrigerating equipment |
| CN106839584A (en) * | 2016-12-09 | 2017-06-13 | 青岛海尔股份有限公司 | Wind cooling refrigerator |
| WO2017202090A1 (en) * | 2016-05-26 | 2017-11-30 | 青岛海尔股份有限公司 | Nitrogen generation control method and apparatus for refrigerator |
| CN107923695A (en) * | 2015-08-28 | 2018-04-17 | 大金工业株式会社 | Conditioner and include the freezer for container of conditioner in the case in case |
| WO2018108056A1 (en) * | 2016-12-12 | 2018-06-21 | 青岛海尔股份有限公司 | 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 |
| CN113446800A (en) * | 2020-03-24 | 2021-09-28 | 合肥华凌股份有限公司 | Fresh-keeping device and refrigerator |
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2008
- 2008-07-01 CN CNU2008200137589U patent/CN201233145Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107923695A (en) * | 2015-08-28 | 2018-04-17 | 大金工业株式会社 | Conditioner and include the freezer for container of conditioner in the case in case |
| CN107923695B (en) * | 2015-08-28 | 2019-03-08 | 大金工业株式会社 | Conditioner and the freezer for container including conditioner in the case in case |
| CN105953495A (en) * | 2016-04-27 | 2016-09-21 | 青岛海尔股份有限公司 | Cold storage refrigerating device and control method thereof |
| CN105923613A (en) * | 2016-04-27 | 2016-09-07 | 青岛海尔股份有限公司 | Nitrogen production device and refrigerator |
| CN105923613B (en) * | 2016-04-27 | 2018-02-02 | 青岛海尔股份有限公司 | nitrogen-making device and refrigerator |
| CN105953495B (en) * | 2016-04-27 | 2018-07-13 | 青岛海尔股份有限公司 | Refrigerating device and its control method |
| WO2017202090A1 (en) * | 2016-05-26 | 2017-11-30 | 青岛海尔股份有限公司 | Nitrogen generation control method and apparatus for refrigerator |
| CN106052254B (en) * | 2016-05-30 | 2018-10-12 | 青岛海尔股份有限公司 | Refrigerating device |
| CN106052254A (en) * | 2016-05-30 | 2016-10-26 | 青岛海尔股份有限公司 | Cold storage and refrigeration device |
| CN106091532A (en) * | 2016-05-31 | 2016-11-09 | 青岛海尔股份有限公司 | Nitrogen control method processed and refrigerating equipment for refrigerating equipment |
| WO2017206557A1 (en) * | 2016-05-31 | 2017-12-07 | 青岛海尔股份有限公司 | Nitrogen generation control method for refrigerating and freezing equipment, and refrigerating and freezing equipment |
| CN106839584A (en) * | 2016-12-09 | 2017-06-13 | 青岛海尔股份有限公司 | Wind cooling refrigerator |
| CN106839584B (en) * | 2016-12-09 | 2023-11-21 | 海尔智家股份有限公司 | air-cooled refrigerator |
| WO2018108056A1 (en) * | 2016-12-12 | 2018-06-21 | 青岛海尔股份有限公司 | 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 |
| CN113446800A (en) * | 2020-03-24 | 2021-09-28 | 合肥华凌股份有限公司 | Fresh-keeping device and refrigerator |
| CN113446800B (en) * | 2020-03-24 | 2022-05-31 | 合肥华凌股份有限公司 | Fresh-keeping device and refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Dong Liang Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20100701 |