CN209027174U - A kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment - Google Patents
A kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment Download PDFInfo
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- CN209027174U CN209027174U CN201821832939.4U CN201821832939U CN209027174U CN 209027174 U CN209027174 U CN 209027174U CN 201821832939 U CN201821832939 U CN 201821832939U CN 209027174 U CN209027174 U CN 209027174U
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Abstract
The utility model discloses nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment, the cryopreservation equipment includes refrigerating chamber and freezing chamber；Including gas boosting module, nitrogen separation module and gas supply module；Gas boosting module includes first filter, the front end of first filter is connected with first pipe, second pipe and third pipeline, first pipe is connect with refrigerating chamber, the first valve is set thereon, second pipe is connect with freezing chamber, the second valve is set thereon, and third pipeline is circumscribed with diamond, sets third valve thereon；Rear end connect compressor, the first heat-exchanging component, moisture trap and the second filter of first filter；The rear end of second filter is sequentially connected with the nitrogen separation module and gas supply module.The utility model has the advantage of fully consider the performance of cryopreservation equipment, increase heat-exchanger rig, retain cooling capacity to the maximum extent, energy saving improves the indoor humidity of refrigeration by increasing humidifier, and improves fruit vegetables storing effect.
Description
Technical field
The utility model belongs to controlled atmosphere technical field, and in particular to a kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation
Equipment.
Background technique
With the continuous quickening of people's Working Life rhythm, daily life is for the time of fruit vegetables storing and fresh-keeping quality etc.
The requirement of aspect is also being continuously improved, and refrigerator has become indispensable household electrical appliance as freshness preserving equipment.It is the freezing of refrigerator, cold
Hiding, fresh-retaining preserving function constantly improve the raising that quality of life requires also with people.Compare mainstream currently on the market
Preservation technology has: zero degree is fresh-keeping, vacuum freshness retaining, light wave is fresh-keeping, silver ion bacteriostasis, preservation, the total space is fresh-keeping, hydrone is fresh-keeping etc..
Above all kinds of preservation technologies are all based on the general cold platform exploitation of refrigerator, and the heat preservation of refrigerator, temperature control technology are required all to compare
It is higher.However the preservation by low temperature time is short, of poor quality, it may appear that fruits and vegetables rot, or the phenomenon that be damaged by frost.In addition, household ice
Case is inevasible in use to will appear frosting freezing phenomena, if cannot handle in time, not only will affect the system of refrigerator
Cold effect increases energy consumption, or even will cause the deformation of refrigeration for refrigerator pipeline.
Preserving fruit and vegetable utilizing is in addition to traditional preservation by low temperature, and there are also controlled atmosphere developed in recent years, biological preservation, chemistry
It is fresh-keeping etc..Wherein controlled atmosphere has many advantages, such as: can keep original form, quality, color, flavor and battalion well
It supports, fruit-vegetable quality and freshly harvested phase difference through air conditioned storage are very few；Under controlled atmosphere low-oxygen environment, it is able to suppress fruits and vegetables mould
Growth and the generation of pest and disease damage；Storage time is long, 0.5-1 times longer than general cryopreservation, and without any pollution.
However the existing air conditioning technology applied on refrigerator does not consider the performance indicator of refrigerator, so that refrigerator load increases
Add or even overload operation, while causing in refrigerator that environment is excessively dry, causes fruits and vegetables dehydration, be unable to reach preserving fruit and vegetable utilizing storage
The purpose of hiding.
Utility model content
The technical problem to be solved by the utility model is to: existing air conditioning technology directly applies to refrigerator, increases refrigerator
Load causes refrigerator environment excessively to be dried so as to cause fruits and vegetables dehydration.
The utility model solves above-mentioned technical problem using following technical scheme:
A kind of nitrogen charging controlled-atmosphere preservation system is applied in cryopreservation equipment, and the cryopreservation equipment includes refrigerating chamber
And freezing chamber；The system includes gas boosting module, nitrogen separation module and gas supply module；The gas boosting module includes the
One filter, the front end of the first filter are connected with first pipe, second pipe and third pipeline, the first pipe with
Refrigerating chamber connection, which is provided with the first valve, and the second pipe is connect with freezing chamber, which is provided with the second valve, and described the
Three pipelines are circumscribed with diamond, and third pipeline is equipped with third valve；The rear end of first filter be connected in turn compressor,
First heat-exchanging component, moisture trap and the second filter；The rear end of second filter and the nitrogen separation module connect
It connects；The gas supply module includes the 4th pipeline and the 5th pipeline, the 4th pipeline and the 5th pipeline with nitrogen separation module
Connection, the 4th pipeline are equipped with the 4th valve, and the end of the 4th pipeline is connected with humidifier, and the end is set in refrigerating chamber,
5th pipeline is equipped with the 5th valve, and the end of the 5th pipeline is set in freezing chamber.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, the gas boosting module further include
Two heat-exchanging components, the end of the first pipe and second pipe far from cryopreservation equipment and second heat-exchanging component into
The connection of mouth end, the outlet end of the second heat-exchanging component are connect with first filter, and the third pipeline is arranged in first filter
Between the second heat-exchanging component.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, further includes monitoring module, the monitoring mould
Block includes first pressure sensor, second pressure sensor, third pressure sensor, oxygen concentration instrument and hygronom, and described first
Pressure sensor is set in refrigerating chamber, and second pressure sensor is set in freezing chamber, the third pressure sensor setting
In first filter input end, first pipe is arranged at the position of refrigerating chamber in the oxygen concentration instrument, and the hygronom is set
It sets at the position in second pipe close to freezing chamber.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, first valve, the second valve,
Three valves, the 4th valve and the 5th valve are solenoid valve.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, further includes control module, the monitoring mould
Block, the first valve, the second valve, third valve, the 4th valve, the 5th valve and compressor electrically connect with the control module
It connects.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, the humidifier includes water tank and microvesicle
Generator, the upper end opening of the water tank, the microvesicle generators are arranged in water tank；Water is protruded into the end of the second pipe
In case, and it is connected to microvesicle generators.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, the diamond are atmosphere.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, the nitrogen separation module includes hollow
Fiber membrane separator, the hollow fiber membrane separator are equipped with an inlet end and two outlet sides, the inlet end and second
Filter connection, an external evacuated tube in outlet side, another described outlet side pass through pressure regulator valve and the 4th pipeline, the 5th
Pipeline connection.
Preferably, a kind of nitrogen charging controlled-atmosphere preservation system described in the utility model, the compressor are oilless (oil free) compressor.
The utility model additionally provides a kind of cryopreservation equipment comprising a kind of above-mentioned nitrogen charging controlled-atmosphere preservation system；
The cryopreservation equipment includes refrigerator and vehicle-mounted freezer.
The utility model technology the utility model has the advantages that
The nitrogen charging controlled-atmosphere preservation system of technical solutions of the utility model fully considers the performance of cryopreservation equipment, and increase is changed
Thermal, retains cooling capacity to the maximum extent, and energy saving improves the indoor humidity of refrigeration by increasing humidifier, improves fruits and vegetables
Storage effect；And the system realizes the dehumidifier function of freezing chamber, alleviates the frost of freezing chamber, ensure that refrigeration effect
Fruit；
By the setting of monitoring module, the parameters during controlled atmosphere are monitored in real time, avoid that storage equipment is caused to damage
Wound.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of nitrogen charging controlled-atmosphere preservation system described in the utility model embodiment；
Fig. 2 is the structural schematic diagram of humidifier described in the present embodiment.
Specific embodiment
For convenient for those skilled in the art understand that technical solutions of the utility model, practical new to this now in conjunction with Figure of description
Type technical solution is described further.
Fig. 1 show a kind of nitrogen charging controlled-atmosphere preservation system disclosed in the present embodiment, is applied in cryopreservation equipment,
The cryopreservation equipment includes refrigerating chamber 21 and freezing chamber 22.This system includes gas boosting module, nitrogen separation mould
Block, gas supply module.
The gas boosting module includes first filter 1101, compressor 1102, the first heat-exchanging component 1103, air water point
From device 1104, the second filter 1105 and the second heat-exchanging component 1106.
The front end of the first filter 1101 is connected with first pipe 1107, second pipe 1108 and third pipeline
1109.The first pipe 1107 is connect with refrigerating chamber 21, which is provided with the first valve 1110；The second pipe 1108 with it is cold
Freeze room 22 to connect, which is provided with the second valve 1111；The third pipeline 1109 is circumscribed with diamond, in the present embodiment, institute
Stating diamond is atmosphere, and third pipeline 1109 is equipped with third valve 1112.
The end of the first pipe 1107 and second pipe 1108 far from cryopreservation equipment and the second heat exchange group
The input end of part 1106 connects, and the outlet end of the second heat-exchanging component 1106 is connect with first filter 1101, and the third pipe
Road 1109 is arranged between first filter 1101 and the second heat-exchanging component 1106.
The rear end of first filter 1101 successively with the compressor 1102, the first heat-exchanging component 1103, moisture trap
1104 and second filter 1105 connect.1102 oilless (oil free) compressors of compressor used in the present embodiment.
The nitrogen separation module is connect with the rear end of second filter 1111.Nitrogen separation module includes hollow fibre
Membrane separator 121 is tieed up, the hollow fiber membrane separator 121 is equipped with an inlet end (not shown) and two outlet sides
(not shown), the inlet end are connected to second filter 1111, an external evacuated tube 122 in outlet side,
Another described outlet side is connected with regulating valve 123.
The gas supply module includes the 4th pipeline 131 and the 5th pipeline 132, the 4th pipeline 131 and the 5th pipeline 132
It is connect with the pressure regulator valve 123.4th pipeline 132 is equipped with the 4th valve 133, and the end of the 4th pipeline 133, which is connected with, to be added
Wet device 134, and the end is set in refrigerating chamber 21.5th pipeline 132 is equipped with the 5th valve 135, the 5th pipeline 134
End is set in freezing chamber 22.
This system maintains cryopreservation by the cycle operation of gas boosting module, nitrogen separation module and gas supply module
High-nitrogen hypoxia environment in equipment realizes the controlled atmosphere work of fruits and vegetables.
The major function of gas boosting module is to extract the air in refrigerating chamber 21 and freezing chamber 22 out, and carry out primary mistake
Nitrogen is obtained for nitrogen separation module after filter, pressurization, heat exchange, water removal, secondary filter processing, and then supplies cryopreservation equipment.
The purpose of setting of first heat-exchanging component 1103 and the second heat-exchanging component 1106 is by the Cooling capacity exchanging of cryogenic gas to system air inlet
In, compressor 1102 is directly entered to avoid low temperature gas and causes loss of refrigeration capacity, and then increases the energy consumption of cryopreservation equipment, simultaneously
Compressed gas is cooled down using the cold gas extracted from cryopreservation equipment, the dew point of compressed gas can be reduced, with benefit
In subsequent nitrogen separation.
In whole system operational process, the cryogenic gas extracted from cryopreservation equipment can be lost to cause gas
Bulk diffusion, thus the setting purpose of third pipeline 1109 is to introduce surrounding air, to keep the pressure in cryopreservation equipment
Balance.
The gas componant for entering nitrogen separation module is mainly nitrogen and oxygen, using two kinds of gases in hollow-fibre membrane
In infiltration rate it is different, realize nitrogen and oxygen separation, obtain the nitrogen at concentrations up to 98% or more.Oxygen after separation
Gas is excluded from evacuated tube 122, and nitrogen is then assigned to refrigerating chamber 21 and freezing chamber 22 through pressure regulator valve 123.
Very dry through the isolated nitrogen of hollow fiber membrane separator 121, dew point is lower than subzero 20 °.And it refrigerates
The fruits and vegetables stored in room 21 there are certain requirements ambient humidity, and excessively dry environment can reduce the quality of fruit vegetables storing, thus
It is provided with humidifier 134 in the present system.
Under conditions of fully considering the operating condition and real requirement of cryopreservation equipment, the present embodiment is freely expanded using microvesicle
Scattered mode is humidified.Referring to Fig.2, humidifier 134 described in the present embodiment includes water tank 1341 and microvesicle generators
1342, the upper end opening of the water tank 1341, the microvesicle generators 1342 are arranged in water tank 1341；The second pipe
1108 end is protruded into water tank 1341, and is connected to microvesicle generators 1342, and microvesicle generators 1342 impregnate in water.
Gas enters microvesicle generators 1342 by the 4th pipeline 132, and gas becomes after escaping out of microvesicle generators 1342
A large amount of micro-bubbles, these bubbles come into full contact with during floating with water, so that moisture free diffusing enters bubble, and with
Bubble enters in refrigerating chamber 21.Humidifier 1342 is placed in refrigerating chamber 2, and the temperature of the moisture in refrigerating chamber 21 is entered by bubble
Spend it is consistent with the temperature in refrigerating chamber 2, enable to the intensity of moisture free diffusing with the temperature change in refrigerating chamber 2 in this way and
Variation guarantees the saturated humidity under the conditions of the controlled atmosphere humidity for entering refrigerating chamber 2 reaches the temperature just or is lower than saturated humidity.?
In this case, there will be no liquid water precipitations in refrigerating chamber 2, are conducive to fruits and vegetables preservation.
Air of the nitrogen of the drying of freezing chamber 22 in displacement freezing chamber 22 is entered, while reducing oxygen content,
Moisture in freezing chamber 22 is cemented out, the air dew point in freezing chamber 22 is reduced, greatly alleviates, even prevents freezing chamber
The phenomenon that 22 frosting.
As further improving, the present embodiment further includes having monitoring module and control module (not shown).
The monitoring module includes first pressure sensor 141, second pressure sensor 142, third pressure sensor
143, oxygen concentration instrument 144 and hygronom 145, the first pressure sensor 141 are set in refrigerating chamber 21, second pressure sensing
Device 142 is set in freezing chamber 22, and the third pressure sensor 143 is arranged in 1101 input end of first filter, the oxygen
First pipe 1110 is arranged at the position of refrigerating chamber 21 in concentration meter 144, and the hygronom 145 is arranged in second pipe
1111 at the position of freezing chamber 22.The first pressure sensor 141, second pressure sensor 142, third pressure pass
Sensor 143, oxygen concentration instrument 144 and hygronom 145 are electrically connected with control module.By the setting of monitoring module, and will prison
Real-time Data Transmission detected by control module avoids the occurrence of low to control module to be monitored in real time to whole system
The case where there is excessive fluctuation and influences whole equipment performance in pressure in warm storage facilities.
To further increase the intelligence degree that system works, the first valve 1110, the second valve described in the present embodiment
1111, third valve 1112, the 4th valve 133 and the 5th valve 135 are solenoid valve, and the first valve 1110, the second valve
1111, third valve 1112, the 4th valve 133, the 5th valve 135 and compressor 1102 electrically connect with the control module
It connects.
In the present embodiment, the control module can be computer, single-chip microcontroller etc., as long as it can receive monitoring module
Detection device, and by setting program send instruction.
This system can be applied in domestic refrigerator or vehicle-mounted freezer.
Introduce the course of work of this system applied to refrigerator when in detail below with reference to Fig. 1, arrow indicates gas stream in figure
To.
The refrigerating chamber 21 and freezing chamber 22 of nitrogen charging controlled-atmosphere preservation system described in the present embodiment and refrigerator are assembled.It opens
Monitoring module and control module are opened, when oxygen content is higher than setting value, compressor 1102 is opened, the first valve 1110 and third
Valve 133 is opened, and high pure nitrogen enters refrigerating chamber 21, while the low temperature gas in refrigerating chamber 21 is extracted, so that in refrigerating chamber 21
Oxygen content drop to setting value, close the first valve 1110 and third valve 133.When hygronom 145 detects freezing chamber 22
Humidity when being higher than setting value, compressor 1102 is switched on, and the 4th valve 135 and the second valve 1111 are opened, and high pure nitrogen enters
Into freezing chamber 22, the cryogenic gas of high humility is displaced, after the humidity in freezing chamber 22 for being drops to setting value, the second valve
Door 1111 and the 4th valve 135.When humidity is up to standard in oxygen content in refrigerating chamber 21, freezing chamber 22, compressor 1102 is shut down.When
Upper and lower limit of the pressure value that first pressure sensor 141 and second pressure sensor 142 detect close to threshold value, control module
Alarm, when detected value exceeds threshold value, compressor 1102 is shut down.When the pressure value that third pressure sensor 143 detects is less than
When setting value, then show that refrigerator inside negative pressure is more than design value, require supplementation with gas, the 5th valve 1112 of number is opened, and is introduced
Surrounding air makes internal pressure of refrigerator restore balance.
When vehicle-mounted freezer uses the nitrogen charging controlled-atmosphere preservation system, working principle is identical as refrigerator, and details are not described herein again.
Technical solutions of the utility model are exemplarily described utility model above in conjunction with attached drawing, it is clear that this is practical
Novel specific implementation is not subject to the restrictions described above, as long as using the method concept and technical solution progress of the utility model
Various unsubstantialities improve, or it is not improved the conception and technical scheme of utility model are directly applied into other occasions,
It both is within the protection scope of the present invention.
Claims (10)
1. a kind of nitrogen charging controlled-atmosphere preservation system, be applied in cryopreservation equipment, the cryopreservation equipment include refrigerating chamber and
Freezing chamber；It is characterized in that, the system includes gas boosting module, nitrogen separation module and gas supply module；The gas boosting
Module includes first filter, and the front end of the first filter is connected with first pipe, second pipe and third pipeline, described
First pipe is connect with refrigerating chamber, which is provided with the first valve, and the second pipe is connect with freezing chamber, which is provided with the second valve
Door, the third pipeline are circumscribed with diamond, and third pipeline is equipped with third valve；The rear end of first filter is sequentially connected
There are compressor, the first heat-exchanging component, moisture trap and the second filter；The rear end of second filter and the nitrogen point
It is connected from module；The gas supply module includes the 4th pipeline and the 5th pipeline, and the 4th pipeline and the 5th pipeline are and nitrogen
Separation module connection, the 4th pipeline are equipped with the 4th valve, and the end of the 4th pipeline is connected with humidifier, and the end be set to it is cold
Hiding is indoor, and the 5th pipeline is equipped with the 5th valve, and the end of the 5th pipeline is set in freezing chamber.
2. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 1, which is characterized in that the gas boosting module is also wrapped
Include the second heat-exchanging component, the end of the first pipe and second pipe far from cryopreservation equipment and second heat-exchanging component
Input end connection, the outlet end of the second heat-exchanging component connect with first filter, and third pipeline setting is in the first mistake
Between filter and the second heat-exchanging component.
3. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 1 or 2, which is characterized in that it further include monitoring module, institute
Stating monitoring module includes first pressure sensor, second pressure sensor, third pressure sensor, oxygen concentration instrument and hygronom,
The first pressure sensor is set in refrigerating chamber, and second pressure sensor is set in freezing chamber, and the third pressure passes
Sensor is arranged in first filter input end, and first pipe is arranged at the position of refrigerating chamber in the oxygen concentration instrument, described
Second pipe is arranged at the position of freezing chamber in hygronom.
4. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 3, which is characterized in that first valve, the second valve
Door, third valve, the 4th valve and the 5th valve are solenoid valve.
5. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 4, which is characterized in that it further include control module, it is described
Monitoring module, the first valve, the second valve, third valve, the 4th valve, the 5th valve and compressor with the control module
It is electrically connected.
6. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 1, which is characterized in that the humidifier include water tank and
Microvesicle generators, the upper end opening of the water tank, the microvesicle generators are arranged in water tank；It stretches the end of the second pipe
Enter in water tank, and is connected to microvesicle generators.
7. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 1, which is characterized in that the diamond is atmosphere.
8. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 1, which is characterized in that the nitrogen separation module includes
Hollow fiber membrane separator, the hollow fiber membrane separator be equipped with an inlet end and two outlet sides, the inlet end with
The connection of second filter, an external evacuated tube in outlet side, another described outlet side by pressure regulator valve and the 4th pipeline,
The connection of 5th pipeline.
9. a kind of nitrogen charging controlled-atmosphere preservation system according to claim 1, which is characterized in that the compressor is oil free compression
Machine.
10. a kind of cryopreservation equipment, which is characterized in that including a kind of described in any item nitrogen charging controlled atmospheres of such as claim 1-9
Fresh-keeping system；The cryopreservation equipment includes refrigerator and vehicle-mounted freezer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821832939.4U CN209027174U (en) | 2018-11-06 | 2018-11-06 | A kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821832939.4U CN209027174U (en) | 2018-11-06 | 2018-11-06 | A kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210854A (en) * | 2018-11-06 | 2019-01-15 | 合肥工业大学智能制造技术研究院 | A kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment |
-
2018
- 2018-11-06 CN CN201821832939.4U patent/CN209027174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210854A (en) * | 2018-11-06 | 2019-01-15 | 合肥工业大学智能制造技术研究院 | A kind of nitrogen charging controlled-atmosphere preservation system and cryopreservation equipment |
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