CN109140859A - Quick-frozen pre-cooler and quick-frozen forecooling method - Google Patents
Quick-frozen pre-cooler and quick-frozen forecooling method Download PDFInfo
- Publication number
- CN109140859A CN109140859A CN201810972581.3A CN201810972581A CN109140859A CN 109140859 A CN109140859 A CN 109140859A CN 201810972581 A CN201810972581 A CN 201810972581A CN 109140859 A CN109140859 A CN 109140859A
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- quick
- gas
- frozen
- temperature
- chilled
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Links
- 238000000034 method Methods 0.000 title claims description 17
- 238000001816 cooling Methods 0.000 claims abstract description 51
- 238000007710 freezing Methods 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 101
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 38
- 229910052757 nitrogen Inorganic materials 0.000 description 19
- 239000007788 liquid Substances 0.000 description 8
- 238000004321 preservation Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 208000001034 Frostbite Diseases 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 241001233242 Lontra Species 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
Abstract
The invention discloses a kind of quick-frozen pre-coolers, comprising: quick-freezing plant, it is quick-frozen for treating quick-frozen object progress；Pre-cooler, including fore-cooling room and air inlet, the fore-cooling room receives the gas that the quick-freezing plant is discharged to the air inlet, and treats pre-cooling object using the gas and be pre-chilled from top to bottom；And heat riser is heated up by way of mixing with high-temperature gas when the temperature of the gas of quick-freezing plant discharge is lower than predetermined temperature.Beneficial effects of the present invention: the cryogenic gas that quick-freezing plant is discharged is used to be pre-chilled, improves capacity usage ratio by quick-frozen pre-cooler of the present invention.
Description
Technical field
The present invention relates to quick freezing and cold preserving technical fields, it particularly relates to a kind of quick-frozen pre-cooler and quick-frozen pre-cooling side
Method.
Background technique
Mostly quick-frozen to product progress using liquid nitrogen flash freezer machine in the prior art, principle is that liquid nitrogen is sprayed at product
Surface, liquid nitrogen vaporization draws the temperature of product surface at nitrogen, so that product suddenly be frozen.Liquid nitrogen flash freezer has the quick-frozen time
Short, the quick-frozen thorough, advantages such as equipment volume is small, flavour of food products loss is small, hygienic, by product temperature be reduced to -18 DEG C hereinafter, only
Need even a few minutes half an hour.
The nitrogen after evaporation is discharged directly to outside machine in the prior art, still, the nitrogen temperature of this part discharge
It is lower, it is discharged directly to cause to waste unavoidably in air.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of quick-frozen pre-cooler and quick-frozen pre-cooling side
The gas that quick-freezing plant is discharged is recycled by method.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of quick-frozen pre-cooler, comprising: quick-freezing plant, it is quick-frozen for treating quick-frozen object progress；Pre-cooler, including it is pre-
Cold house and air inlet, the fore-cooling room receives the gas that the quick-freezing plant is discharged to the air inlet, and utilizes the gas pair
Object to be pre-chilled is pre-chilled from top to bottom；And heat riser, make a reservation for when the temperature of the gas of quick-freezing plant discharge is lower than
When temperature, heated up by way of being mixed with high-temperature gas.
Preferably, the heat riser includes high-temperature gas import and the control high temperature being set to by the air inlet
The solenoid valve of gas feed opening and closing.
Preferably, further include temp probe, be set at the air inlet, for detecting the gas at the air inlet
Temperature.
Preferably, the high-temperature gas is air.
It preferably, further include circulator, the gas for making to treat after pre-cooling object is pre-chilled is dynamic to logistics to be pre-chilled again.
It preferably, further include gas exhausting device, when the gas temperature moved again to logistics to be pre-chilled is higher than predetermined temperature
When, it discharges it to outside pre-cooler.
Preferably, the gas exhausting device includes exhaust outlet and the control row for being set to the pre-cooler bottom
The solenoid valve of port opening and closing.
Preferably, the circulator includes return-air fan and gas passage,
The return-air fan makes to treat the gas after pre-cooling object is pre-chilled into the gas passage and flow from bottom to top
Dynamic, the gas passage is connected to the air inlet.
It preferably, further include pressure relief device, when the pressure in pre-cooler is higher than predetermined value, by the side that gas is discharged
Formula carries out pressure release.
Preferably, be equipped in the fore-cooling room it is multiple can the mounting apparatus that passes through of supplied gas.
Another aspect of the present invention provides a kind of quick-frozen forecooling method, and including the following steps:, which makes to treat quick-frozen object, carries out speed
Gas flow object to be pre-chilled after jelly is treated pre-cooling object from top to bottom and is pre-chilled；Wherein, if treat quick-frozen object carry out it is quick-frozen after
Gas temperature be lower than predetermined value, then object to be pre-chilled is flowed to after heating up by way of mixing with high-temperature gas again.
Preferably, further include following steps: making to treat the gas after pre-cooling object is pre-chilled and flow from bottom to top, and treat
Quick-frozen object carry out it is quick-frozen after gas mixing after flow to object to be pre-chilled.
Preferably, further include following steps: if treating the gas temperature after pre-cooling object is pre-chilled is higher than predetermined value, arranging
It is described out to treat the gas after pre-cooling object is pre-chilled.
Beneficial effects of the present invention: quick-frozen pre-cooler of the present invention and quick-frozen forecooling method, it will quick-frozen rear discharge
Cryogenic gas for being pre-chilled, improve capacity usage ratio.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of pre-cooler described in the embodiment of the present invention；
Fig. 2 is the flow chart of quick-frozen forecooling method described in the embodiment of the present invention；
Fig. 3 is the flow chart of another embodiment of quick-frozen forecooling method described in the embodiment of the present invention.
In figure: 1. pre-coolers；10. fore-cooling room；11. mounting apparatus；12. air inlet；13. supply fan；14. High Temperature Gas
Body import；15. air inlet temperature is popped one's head in；16. return-air fan；17. gas passage；18. gas returning port temp probe；19. exhaust outlet；
20. keeping the temperature cabinet body；21. relief valve；30. power control cabinet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
Fig. 1 is the structural schematic diagram of pre-cooler of the present invention.
As shown in Figure 1, a kind of quick-frozen pre-cooler described according to embodiments of the present invention, comprising: quick-freezing plant (is not schemed
Show), it is quick-frozen for treating quick-frozen object progress；Pre-cooler 1, including fore-cooling room 10 and air inlet 12, fore-cooling room 10 receive quick-frozen
The gas that device is discharged to air inlet 12, and treat pre-cooling object using the gas and be pre-chilled from top to bottom；And heating dress
It sets, when the temperature of the gas of quick-freezing plant discharge is lower than predetermined temperature, is heated up by way of being mixed with high-temperature gas.It is quick-frozen
Device is, for example, liquid nitrogen flash freezer machine, the temperature to quick-frozen object (such as aquatic products etc.) can be down to -18 DEG C hereinafter, liquid nitrogen absorb to
The heat of quick-frozen object becomes nitrogen to evaporation, this part nitrogen temperature is still very low, therefore the value also utilized makes
The nitrogen of liquid nitrogen flash freezer machine discharge enters pre-cooler, to carry out to the object to be pre-chilled (such as fruits and vegetables etc.) in pre-cooler pre-
It is cold.
Pre-cooler 1 be equipped with for example including the fore-cooling room 10 being arranged in heat preservation cabinet body 20, in fore-cooling room 10 it is multiple for
The mounting apparatus 11 that gas passes through, mounting apparatus 11 are, for example, glue frame with holes, and object to be pre-chilled is placed on mounting apparatus 11.Heat preservation
The top of cabinet body 20 offers air inlet 12, and air inlet 12 is connected to the exhaust pipe of quick-freezing plant, the nitrogen of quick-freezing plant discharge
Enter pre-cooler 1 from the air inlet 12, flows from top to bottom and pre-cooling object is pre-chilled.Supply fan is equipped at air inlet 12
13, the flowing velocity of nitrogen is accelerated under the action of supply fan 13, can be more quickly pre-chilled.
Since the temperature of the gas of quick-freezing plant discharge is still lower, there are the risks of frostbite pre-cooling object, therefore, pre- cold charge
Setting 1 further includes heat riser, when the temperature of the gas of quick-freezing plant discharge is lower than predetermined temperature, by mixing with high-temperature gas
Mode heat up.
Specifically, high-temperature gas import 14 and air inlet temperature probe 15, the high temperature are also provided near air inlet 12
The opening and closing of gas feed 14 are by solenoid valve control.The temperature of the gas of 15 detection quick-freezing plant discharge of air inlet temperature probe
Degree opens high-temperature gas import 14, enters high-temperature gas, mix with low temperature nitrogen when temperature is lower than predetermined temperature, thus
Temperature is improved, frostbite object to be pre-chilled is prevented.As preferred embodiment, nearby a chamber can also be arranged in air inlet 12,
The gas flowed out from air inlet 12 and high-temperature gas import 14 is introduced into the chamber, after so that two kinds of gases is sufficiently mixed temperature stabilization
Enter back into pre-cooler 1.High-temperature gas is preferably air, enters external air after opening high-temperature gas import 14.
It is still relatively low to treat the gas temperature that pre-cooling object carries out after once pre-cooling, can also reuse.For this purpose, pre-cooling
Device 1 further includes circulator, and the gas for making to treat after pre-cooling object is pre-chilled is dynamic to logistics to be pre-chilled again.
Specifically, circulator includes return-air fan 16 and gas passage 17, and return-air fan 16 makes to treat pre-cooling object progress
Gas after pre-cooling enters gas passage 17, and the position (i.e. air inlet 12) of gas is discharged even in gas passage 17 and quick-freezing plant
It is logical.The bottom of heat preservation cabinet body 20 is arranged in return-air fan 16, and gas passage 17 is also disposed in heat preservation cabinet body 20, passes through isolation board
It is separated with fore-cooling room 10, metal otter board (figure is set on position corresponding with return-air fan 16 and supply fan 13 on isolation board
In the position that indicates by a dotted line), supplied gas circulation.That is, the gas for freezing device discharge initially enters gas passage 17, in air inlet
Enter fore-cooling room 10 under the action of fan 13, flows down to the bottom of fore-cooling room 10, enter under the action of return-air fan 16
Gas passage 17 flows up to the top of gas passage 17, is again introduced into fore-cooling room 10 and completes one cycle.Treat pre-cooling object
The gas mixing that the gas after being once pre-chilled can also just be discharged at the top of gas passage 17 and quick-freezing plant is carried out, so as not to it is quick-frozen
The gas temperature that device has just been discharged is too low.
With increasing for cycle-index, the temperature of gas rises gradually, can reduce precooling effect, so, when appropriate
Machine needs to be discharged a part of gas.For this purpose, pre-cooler 1 further includes gas exhausting device, when what is moved again to logistics to be pre-chilled
When gas temperature is higher than predetermined temperature, discharge it to outside pre-cooler.
Specifically, gas returning port temp probe 18 and exhaust outlet 19, the unlatching of exhaust outlet 19 are equipped near return-air fan 16
With closing by solenoid valve control, when gas returning port temp probe 18 detects that temperature is higher than predetermined temperature, Exhaust Open, gas
It is discharged from exhaust outlet 19, no longer flows up.
Further, since air inlet 12 has always gas inflow, the pressure kept the temperature in cabinet body 20 can increase gradually, therefore,
It is additionally provided with relief valve 21 on heat preservation cabinet body 20, keeps the temperature and is equipped with barometer in cabinet body 20, when the pressure in heat preservation cabinet body 20 is higher than in advance
When definite value, relief valve 21 is opened, by gas discharge to pressure release.
It keeps the temperature and is equipped with power control cabinet 30 above cabinet body 20, connect with each electric elements, receive each measuring cell (air inlet temperature
Degree probe 15, gas returning port temp probe 18 and barometer) data and according to these data, control the opening and closing of each valve.
In the following, being illustrated to a kind of quick-frozen forecooling method of the present invention.
As shown in Fig. 2, being the flow chart of quick-frozen forecooling method described in the embodiment of the present invention.
Quick-frozen forecooling method of the present invention, include the following steps: to make to treat quick-frozen object carry out it is quick-frozen after gas stream
To object to be pre-chilled, pre-cooling object is treated from top to bottom and is pre-chilled；Wherein, if treat quick-frozen object carry out it is quick-frozen after gas temperature it is low
In predetermined value, then object to be pre-chilled is flowed to after heating up by way of mixing with high-temperature gas again.
Specifically, for example, first treating quick-frozen object using quick-frozen dose (liquid nitrogen) carries out quick-frozen (S1), then, quick-frozen dose of evaporation
At gas (nitrogen), the temperature (S2) of the gas is detected, if being lower than predetermined temperature, illustrates the wind for having frostbite object to be pre-chilled
Danger is promoted temperature (S2.1) at this point, the gas is mixed with high-temperature gas, and hereafter, the gas flow for finishing mixing waits being pre-chilled
Object (S3).If detection gas temperature is greater than or equal to predetermined temperature in step S2, step S2.1 is skipped, gas stream is directly made
To object to be pre-chilled (S3), pre-cooling object is treated from top to bottom and is pre-chilled.
Fig. 3 is the flow chart of another embodiment of quick-frozen forecooling method described in the embodiment of the present invention.
On the basis of the above embodiment, further include following steps: making to treat the gas after pre-cooling object is pre-chilled certainly
Lower and upper flowing, with treat quick-frozen object carry out it is quick-frozen after gas mixing after flow to object to be pre-chilled.
Specifically, gas is treated temperature after pre-cooling object is pre-chilled from top to bottom and can be increased, and keeps this portion gas upward
Flowing, with treat quick-frozen object carry out it is quick-frozen after gas mixing (S4.1), again execute step S2, flow to object to be pre-chilled again.
Can prevent from terms of the step 1 treating quick-frozen object carry out it is quick-frozen after gas temperature it is too low, frostbite object be pre-chilled, another aspect
Gas is recycled, is repeatedly utilized, to improve efficiency.
Wherein, the gas after making to treat pre-cooling object and being pre-chilled flows up, with treat quick-frozen object carry out it is quick-frozen after
Further include following steps before gas mixing: the gas temperature (S3.1) after pre-cooling object is pre-chilled is treated in detection, if treating pre-
Gas temperature after cold object is pre-chilled is higher than predetermined value, then (all or part) described treat is discharged and is pre-chilled after object is pre-chilled
Gas (S4.2).The phenomenon that step can prevent gas circulation from becoming excessively high afterwards several times and reducing precooling effect generation.
In conclusion quick-frozen pre-cooler of the present invention and quick-frozen forecooling method, are utilized quick-freezing plant discharge
Cryogenic gas (nitrogen), improves the energy consumption efficiency of quick-freezing plant.Foring quick-frozen and pre-cooling two-stage cooling, quick-freezing plant can incite somebody to action
Aquatic products, fruits and vegetables temperature are reduced to -18 DEG C hereinafter, storing into freezing chamber, and fruits and vegetables can be reduced to 0~10 DEG C by pre-cooler, into
Enter refrigerating chamber storage.In addition, also introducing the temperature that normal temperature air adjusts cryogenic gas, the uncontrollable gas of temperature is made to become temperature
Controllable pre- cold air, realizes accurate pre-cooling, prevents fruits and vegetables frost bitten.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of quick-frozen pre-cooler characterized by comprising
Quick-freezing plant, it is quick-frozen for treating quick-frozen object progress；
Pre-cooler, including fore-cooling room and air inlet, the fore-cooling room receive what the quick-freezing plant was discharged to the air inlet
Gas, and treat pre-cooling object using the gas and be pre-chilled from top to bottom；And
Heat riser, when the temperature of the gas of quick-freezing plant discharge is lower than predetermined temperature, by being mixed with high-temperature gas
Mode heat up.
2. quick-frozen pre-cooler according to claim 1, which is characterized in that
The heat riser includes being set to high-temperature gas import by the air inlet and the control high-temperature gas import is opened
The solenoid valve closed.
3. quick-frozen pre-cooler according to claim 1, which is characterized in that
Further include air inlet temperature probe, is set at the air inlet, for detecting the temperature of the gas at the air inlet.
4. quick-frozen pre-cooler according to claim 1, which is characterized in that
The high-temperature gas is air.
5. quick-frozen pre-cooler according to claim 1, which is characterized in that
It further include circulator, the gas for making to treat after pre-cooling object is pre-chilled is dynamic to logistics to be pre-chilled again.
6. quick-frozen pre-cooler according to claim 5, which is characterized in that
It further include gas exhausting device, when to when being higher than predetermined temperature wait which the dynamic gas temperature of logistics is pre-chilled, discharging it again
To outside pre-cooler.
7. quick-frozen pre-cooler according to claim 6, which is characterized in that
The gas exhausting device includes the exhaust outlet and the control exhaust orifice open/close for being set to the pre-cooler bottom
Solenoid valve.
8. quick-frozen pre-cooler according to claim 5, which is characterized in that
The circulator includes return-air fan and gas passage,
The return-air fan makes to treat the gas after pre-cooling object is pre-chilled into the gas passage and flow from bottom to top, institute
Gas passage is stated to be connected to the air inlet.
9. quick-frozen pre-cooler according to claim 1, which is characterized in that
Further include pressure relief device, when the pressure in pre-cooler is higher than predetermined value, carries out pressure release by way of gas is discharged.
10. quick-frozen pre-cooler according to claim 1, which is characterized in that
Be equipped in the fore-cooling room it is multiple can the mounting apparatus that passes through of supplied gas.
11. a kind of quick-frozen forecooling method, which comprises the steps of:
Make to treat quick-frozen object carry out it is quick-frozen after gas flow object to be pre-chilled, treat pre-cooling object from top to bottom and be pre-chilled；Wherein,
If treat quick-frozen object carry out it is quick-frozen after gas temperature lower than predetermined value, heated up by way of being mixed with high-temperature gas
Flow to object to be pre-chilled again afterwards.
12. quick-frozen forecooling method according to claim 11, which is characterized in that further include following steps:
Make to treat the gas after pre-cooling object is pre-chilled to flow from bottom to top, with treat quick-frozen object carry out it is quick-frozen after gas mixing
After flow to object to be pre-chilled.
13. quick-frozen forecooling method according to claim 12, which is characterized in that further include following steps:
If treat pre-cooling object be pre-chilled after gas temperature be higher than predetermined value, discharge described in treat pre-cooling object be pre-chilled after
Gas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972581.3A CN109140859B (en) | 2018-08-24 | 2018-08-24 | Quick-freezing precooling device and quick-freezing precooling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972581.3A CN109140859B (en) | 2018-08-24 | 2018-08-24 | Quick-freezing precooling device and quick-freezing precooling method |
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| CN109140859A true CN109140859A (en) | 2019-01-04 |
| CN109140859B CN109140859B (en) | 2023-10-27 |
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| CN201810972581.3A Active CN109140859B (en) | 2018-08-24 | 2018-08-24 | Quick-freezing precooling device and quick-freezing precooling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970941A (en) * | 2020-07-22 | 2022-01-25 | 青岛海尔生物医疗科技有限公司 | Program cooling instrument and cooling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2231722C2 (en) * | 2002-12-26 | 2004-06-27 | Общество с ограниченной ответственностью "Темп-11" | Line for bird carcasses cold treatment |
| CN104697263A (en) * | 2015-03-10 | 2015-06-10 | 王琰 | Self-prefreezing liquid nitrogen tunnel quick freezer |
| CN104886234A (en) * | 2015-06-30 | 2015-09-09 | 温州科技职业学院 | Liquid nitrogen precooling device for fruits and vegetables |
| CN206760625U (en) * | 2017-03-22 | 2017-12-19 | 徐州市海涛制冷设备有限公司 | Pump ring continous way fruit and vegetable drying precooling freeze tunnel |
| CN209131213U (en) * | 2018-08-24 | 2019-07-19 | 顺启和(深圳)科技有限公司 | Quick-frozen pre-cooler |
-
2018
- 2018-08-24 CN CN201810972581.3A patent/CN109140859B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2231722C2 (en) * | 2002-12-26 | 2004-06-27 | Общество с ограниченной ответственностью "Темп-11" | Line for bird carcasses cold treatment |
| CN104697263A (en) * | 2015-03-10 | 2015-06-10 | 王琰 | Self-prefreezing liquid nitrogen tunnel quick freezer |
| CN104886234A (en) * | 2015-06-30 | 2015-09-09 | 温州科技职业学院 | Liquid nitrogen precooling device for fruits and vegetables |
| CN206760625U (en) * | 2017-03-22 | 2017-12-19 | 徐州市海涛制冷设备有限公司 | Pump ring continous way fruit and vegetable drying precooling freeze tunnel |
| CN209131213U (en) * | 2018-08-24 | 2019-07-19 | 顺启和(深圳)科技有限公司 | Quick-frozen pre-cooler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970941A (en) * | 2020-07-22 | 2022-01-25 | 青岛海尔生物医疗科技有限公司 | Program cooling instrument and cooling method |
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| Publication number | Publication date |
|---|---|
| CN109140859B (en) | 2023-10-27 |
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