CN104596175A - Improved tunnel type liquid nitrogen instant freezer - Google Patents
Improved tunnel type liquid nitrogen instant freezer Download PDFInfo
- Publication number
- CN104596175A CN104596175A CN201510004867.9A CN201510004867A CN104596175A CN 104596175 A CN104596175 A CN 104596175A CN 201510004867 A CN201510004867 A CN 201510004867A CN 104596175 A CN104596175 A CN 104596175A
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- CN
- China
- Prior art keywords
- refrigerating chamber
- liquid nitrogen
- conveyer belt
- tunnel type
- type liquid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- F25D3/11—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyors carrying articles to be cooled through the cooling space
-
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Abstract
The invention relates to a quick-freezing plant. Specific to the technical problems caused by the use of a conveying plate strip in a liquid nitrogen instant freezer, the invention provides an improved tunnel type liquid nitrogen instant freezer. The improved tunnel type liquid nitrogen instant freezer comprises a tunnel type freezing chamber and surrounding conveying belts in the freezing chamber, wherein support guide rails are arranged on the side walls of the freezing chamber between two layers of conveying belts; the support guide rails extend from the feeding end of the freezing chamber to the discharging end. The tunnel type liquid nitrogen instant freezer is characterized in that diffusion cavities along the freezing chamber are formed in the side walls, which are in contact with the support guide rails, of the freezing chamfer; the support guide rails are provided with a plurality of through holes for communicating cavities between upper and lower conveying belts with the diffusion cavities; a pipeline for communicating the diffusion cavities with the space above the upper layer conveying belt is arranged in the chamber wall of the freezing chamber; an exhaust fan is arranged on the pipeline. The improved tunnel type liquid nitrogen instant freezer is reasonable in structure, is easy and convenient to manufacture, and can be widely applied to the improvement of the conventional liquid nitrogen instant freezer.
Description
Technical field
The present invention relates to a kind of quick-freezing plant, specifically refer to a kind of tunnel type liquid nitrogen flash freezer machine of improvement.
Background technology
The applicant have submitted a kind of tunnel type liquid nitrogen flash freezer machine on December 4th, 2014, application number is: 201420750986.X, this tunnel type liquid nitrogen flash freezer owner will solve current liquid nitrogen flash freezer machine liquid nitrogen and leak the technical problem serious, liquid nitrogen use amount is high, and the technical scheme of employing is respectively equipped with liquid nitrogen plugging device at the feed end of refrigerating chamber and discharge end; Described liquid nitrogen plugging device comprises the bellows being arranged on foraminous conveyer top, the top of bellows is provided with air intake passage, the bottom of bellows is provided with blowing mouth, seal fixing between the top board of bellows and refrigerating chamber and two side, refrigerating chamber top board is provided with the air inlet through with bellows air intake passage, and air inlet is provided with blower fan.By above-mentioned design, liquid nitrogen freezers effectively can reduce the use amount of liquid nitrogen, keeps the low temperature in refrigerating chamber.But with the listing of this type, have user to reflect, because foraminous conveyer adopts metal wire knitted to form, when frozen food, the striped of depression can be printed off in the food back side by guipure, have impact on the outward appearance of frozen food.For this reason, foraminous conveyer is modified into conveying strip by applicant on the basis of this liquid nitrogen flash freezer machine, its structure is shown in shown in accompanying drawing 1 and accompanying drawing 2, conveying strip 1 is made up of some pieces of material plates 2, material plate 2 is long strip type plate, the both sides of material plate 2 are respectively equipped with the torch shape groove 4 of outstanding rectangular teeth 3 and depression, saw shape tooth 3 and torch shape groove 4 interval are arranged, saw shape tooth 3 inside is provided with axis hole 5, wherein to realize between two material plates by jointed shaft 6 after inlaying hinged for the saw shape tooth 3 on one piece of material plate and the torch shape groove 4 on another block material plate, after the material plate with larger amt is hinged successively, formation has the conveying strip of certain length.As shown in Figure 1, be provided with in the both sides of conveying strip 2 and drag chain 7, drag on supporting guide that chain 7 is positioned at refrigerating chamber and by motor, whole piece conveying strip 2 is dragged.As the prior art, carry strip 2 to be ring-type, formed two-layer up and down in refrigerating chamber inside, the surface of upper strata conveying strip is for shelving freezing material.After foraminous conveyer being modified into conveying strip, the surface of conveying strip forms formation state, keeps smooth, maintain the outward appearance of product bottom the material after freezing.But there is a more scabrous technical problem in this improvement, because upper strata conveying strip is in formation state in motion process, upper strata delivery board band is " sealing plate " state substantially, i.e. upper strata conveying strip and refrigerating chamber sidewall, the space of an opposing seal is formed between roof, after being charged into liquid nitrogen in refrigerating chamber, space temperature more than upper strata conveying strip is sharply declined, and carry the space temperature between strip obviously not decline up and down, cause material freezing uneven when freezing thus, often material upper strata is on hold, and material lower floor is still in non-frozen state, this is proved when aquatic products processing enterprise carries out the quick-frozen of squid cylinder, through the squid loop upper strata of instant freezer is on hold, the bottom of squid cylinder is still in soft condition, this is also the main cause place that its conveyer belt often adopts mesh belt structure and not substitute strip structure when causing adopting liquid nitrogen flash freezer at present.
Summary of the invention
For overcome current liquid nitrogen flash freezer machine adopt conveying strip time the freezing inequality of material and technical problem, the invention provides a kind of tunnel type liquid nitrogen flash freezer machine of improvement.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is: a kind of tunnel type liquid nitrogen flash freezer machine of improvement, comprise a tunnel type refrigerating chamber, the two ends of refrigerating chamber are respectively feed end and discharge end, also comprise circulating type conveyer belt, conveyer belt is positioned at refrigerating chamber, the two ends of conveyer belt lay respectively at the feed end of refrigerating chamber and the outside of discharge end, one end of conveyer belt is sleeved on driving wheel, the other end is set with on the driven wheel thus in refrigerating chamber, forms upper and lower two-layer conveyer belt, refrigerating chamber sidewall between two-layer conveyer belt is provided with supporting guide, supporting guide extends to discharge end by the feed end of refrigerating chamber, it is characterized in that: in the refrigerating chamber sidewall contacted with supporting guide, be provided with the diffusion chamber moved towards along refrigerating chamber, supporting guide is provided with some through holes by through between the cavity between upper and lower conveyer belt and diffusion chamber, the pipeline be communicated with the above space of upper strata conveyer belt by diffusion chamber is provided with in the locular wall of refrigerating chamber, pipeline is provided with air exhauster.
Further, playpipe is provided with in cavity between upper strata conveyer belt and conveying belt of lower floor, the two ends of playpipe are supported on on refrigerating chamber supported on both sides guide rail, and it is through with the through hole on supporting guide, playpipe is provided with some spray-holes upwards, the quantity of playpipe is consistent with the number of openings on one-sided supporting guide, and playpipe is arranged to discharge end successively by refrigerating chamber feed end.
Further, described conveyer belt is conveying strip, described conveying strip is made up of some pieces of material plates, material plate is long strip type plate, the both sides of material plate are respectively equipped with the torch shape groove of outstanding rectangular teeth and depression, saw shape tooth and torch shape groove interval are arranged, and saw shape tooth inside and are provided with axis hole, and it is hinged that the saw shape tooth on neighbors flitch and torch shape groove realize between material plate by jointed shaft after inlaying.
Further, described conveyer belt is foraminous conveyer.
Further, described refrigerating chamber feed end and discharge end are respectively equipped with liquid nitrogen plugging device; Described liquid nitrogen plugging device comprises the bellows being arranged on foraminous conveyer top, the top of bellows is provided with air intake passage, the bottom of bellows is provided with blowing mouth, seal fixing between the top board of bellows and refrigerating chamber and two side, refrigerating chamber top board is provided with the air inlet through with bellows air intake passage, and air inlet is provided with blower fan.
Further, overflowed by the end of cavity between described upper and lower conveyer belt for preventing liquid nitrogen, blower is respectively equipped with bottom cavity two ends between upper and lower conveyer belt, blower is provided with blowhole upwards, be provided with blowing arm between blower and described air intake passage, blowing arm is positioned at refrigerating chamber interior.
Further, be provided with some Diffusion fans at refrigerating chamber top along refrigerating chamber trend, the blade of Diffusion fan is positioned at refrigerating chamber inside.
The tunnel type liquid nitrogen flash freezer machine of this improvement makes the cavity between upper and lower conveyer belt and the above space temperature of upper strata conveyer belt be consistent by arranging through pipeline in refrigerating chamber locular wall by the forced circulation of air exhauster, ensure that in refrigerating chamber, entirety is in low temperature environment, the top of material and bottom synchronously can reach freezing under the condition of same low temperature, thoroughly solve the technical problem that quick-frozen that the isolation due to conveyer belt causes is uneven.The tunnel type liquid nitrogen flash freezer machine of this improvement is not only applicable to the instant freezer adopting delivery board band structure, and equally also may be used on the instant freezer adopting foraminous conveyer structure, its quick-frozen effect has obvious advantage relative to traditional liquid nitrogen flash freezer facility.The tunnel type liquid nitrogen flash freezer machine of this improvement is rational in infrastructure, simple for production, can extensively improve existing liquid nitrogen flash freezer machine.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of conveying strip.
Accompanying drawing 2 is the decomposition texture schematic diagram of conveying strip material plate.
Accompanying drawing 3 is the structural representation of the tunnel type liquid nitrogen flash freezer machine of this improvement.
Accompanying drawing 4 be in accompanying drawing 3 A-A to structure sectional view.
Accompanying drawing 5 is that the A-A of improvement further in accompanying drawing 3 is to structure sectional view.
Accompanying drawing 6 is the structural representation of liquid nitrogen plugging device.
Accompanying drawing 7 is the cross section structure figure of this liquid nitrogen flash freezer machine feed end and discharge end.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1
As shown in Figure 3, only draw the feed end of tunnel type liquid nitrogen flash freezer machine and the part-structure of refrigerating chamber in the figure, basically identical in the basic structure of this tunnel type liquid nitrogen flash freezer machine and prior art, do not showed in accompanying drawing.This tunnel type liquid nitrogen flash freezer machine, comprise a tunnel type refrigerating chamber 8, the two ends of refrigerating chamber are respectively feed end 9 and discharge end, also comprise circulating type conveyer belt 1, conveyer belt 1 is positioned at refrigerating chamber, the two ends of conveyer belt 1 lay respectively at the feed end 8 of refrigerating chamber and the outside of discharge end, one end of conveyer belt is sleeved on driving wheel, the other end is set with on the driven wheel thus in refrigerating chamber, forms upper and lower two-layer conveyer belt, (structure of discharge end is consistent with feed end structure to be provided with liquid nitrogen spraying pipe in refrigerating chamber 8, the installation of conveyer belt and shower be non-concrete manifestation in fig. 3, according to prior art).
As shown in Figure 4, refrigerating chamber sidewall between two-layer conveyer belt is provided with supporting guide 10, supporting guide 10 extends to discharge end by the feed end of refrigerating chamber, the diffusion chamber 11 moved towards along refrigerating chamber is provided with in the refrigerating chamber sidewall contacted with supporting guide, supporting guide is provided with some through holes 12 by through between the cavity 13 between upper strata conveyer belt 1-1 and conveying belt of lower floor 1-2 and diffusion chamber 11, this through hole 12 is evenly arranged along the length direction of supporting guide 10, the pipeline 16 be communicated with the above space 15 of upper strata conveyer belt 1-1 by diffusion chamber 11 is provided with in the locular wall 14 of refrigerating chamber, pipeline is provided with air exhauster 17.
As shown in accompanying drawing 3 and accompanying drawing 4, as the prior art, be provided with some Diffusion fans 18 at refrigerating chamber top along refrigerating chamber trend, the blade of Diffusion fan is positioned at refrigerating chamber inside.
The operation principle of the tunnel type liquid nitrogen flash freezer machine of this improvement is: during work, it is inner that liquid nitrogen is charged into refrigerating chamber 1, spread by Diffusion fan 18 pairs of liquid nitrogen, space temperature above the conveyer belt 1-1 of upper strata is sharply declined, air exhauster 17 works simultaneously, the liquid nitrogen of vaporizing above the conveyer belt 1-1 of upper strata brute force to be arranged in diffusion chamber 11 and to be diffused in the space 15 between upper strata conveyer belt 1-1 and conveying belt of lower floor 1-2 by the through hole 12 on supporting guide 10, temperature in this space 15 is declined equally, thus make the low temperature that the temperature of upper strata conveyer belt 1-1 surface and bottom surface is consistent, material on the conveyer belt 1-1 of upper strata can obtain even quick-frozen when freezing, prevent material quick-frozen from occurring layering.
As shown in Figure 5, for strengthening the cooling effect bottom to upper strata conveyer belt 1-1 further, playpipe 25 is provided with in cavity 13 between upper strata conveyer belt 1-1 and conveying belt of lower floor 1-2, the two ends of playpipe 25 are supported on on refrigerating chamber supported on both sides guide rail 10, and it is through with the through hole 12 on supporting guide 10, playpipe 25 is provided with some spray-holes 26 upwards, the quantity of playpipe 25 is consistent with the number of openings on one-sided supporting guide 10, and playpipe 25 is arranged to discharge end successively by refrigerating chamber feed end.The liquid nitrogen after the vaporization of conveyer belt 1-1 top, upper strata and the directed bottom being sprayed onto upper strata conveyer belt 1-1 of low temperature can be made after increasing playpipe 25, further ensure the uniformity of upper strata conveyer belt 1-1 surface and bottom low temperature.
For solving material when quick-frozen because foraminous conveyer prints off impression, in this embodiment, conveyer belt preferably adopts conveying strip, and the structure of conveying strip 1 is shown in that shown in accompanying drawing 1 and accompanying drawing 2, its structure is described in the background section, does not repeat them here.Owing to carrying the surfacing of strip 1, material its bottom surface when quick-frozen being shelved on conveying strip 1 surface occurs without impression, fully can ensure the outward appearance of material.
Although the tunnel type liquid nitrogen flash freezer machine of this improvement improves for carrying the application of strip 1, but when adopting foraminous conveyer, this structure can use equally, although foraminous conveyer can make liquid nitrogen arrive the bottom of upper strata foraminous conveyer with gap, but when on foraminous conveyer during cloth full with substance, due to the stop of material, the amount of liquid nitrogen that can arrive below the foraminous conveyer of upper strata is less, the surface of upper strata foraminous conveyer and bottom surface still have certain temperature difference, adopt the liquid nitrogen flash freezer machine structure of this improvement effectively can ensure the uniformity of foraminous conveyer surface, upper strata and bottom surface low temperature, have greatly improved relative to the refrigerating effect tool of traditional liquid nitrogen flash freezer machine.
The application number submitted on December 4th, 2014 the applicant is: 201420750986.X, a kind of tunnel type liquid nitrogen flash freezer machine, refrigerating chamber feed end is disclosed and discharge end is respectively equipped with liquid nitrogen plugging device in this application file, this liquid nitrogen plugging device also can use in the liquid nitrogen flash freezer machine of this improvement, as shown in accompanying drawing 3 and accompanying drawing 6, liquid nitrogen plugging device comprises the bellows 19 being arranged on conveyer belt 1 top, the top of bellows 19 is provided with air intake passage 20, the bottom of bellows 19 is provided with blowing mouth 21, seal fixing between the top board of bellows 19 and refrigerating chamber 1 and two side, refrigerating chamber top board is provided with the air inlet through with bellows air intake passage, air inlet is provided with blower fan 22.The specific works principle of this plugging device at application number is: have a detailed description in the patent application of 201420750986.X, repeat no more.
But in this embodiment, because the liquid nitrogen of upper strata conveyer belt 1-1 superjacent air space vaporization is forced to be diffused into the space between upper strata conveyer belt 1-1 and conveying belt of lower floor 1-2, liquid nitrogen is likely overflowed by the end in this space, overflow for preventing liquid nitrogen, as shown in accompanying drawing 6 and accompanying drawing 7, blower 23 is respectively equipped with bottom cavity two ends between upper and lower conveyer belt, blower 23 is provided with blowhole (can not show in accompanying drawing) upwards, be provided with arm 24 of drying between blower 23 and described air intake passage 20, blowing arm 24 is positioned at refrigerating chamber interior.After adopting this structure, twice air curtain can be formed at the top of upper strata conveyer belt 1-1 and bottom, effectively can prevent liquid nitrogen from occurring effusion, reduce the use amount of liquid nitrogen.
Claims (7)
1. the tunnel type liquid nitrogen flash freezer machine improved, comprise a tunnel type refrigerating chamber, the two ends of refrigerating chamber are respectively feed end and discharge end, also comprise circulating type conveyer belt, conveyer belt is positioned at refrigerating chamber, the two ends of conveyer belt lay respectively at the feed end of refrigerating chamber and the outside of discharge end, one end of conveyer belt is sleeved on driving wheel, the other end is set with on the driven wheel thus in refrigerating chamber, forms upper and lower two-layer conveyer belt, refrigerating chamber sidewall between two-layer conveyer belt is provided with supporting guide, supporting guide extends to discharge end by the feed end of refrigerating chamber, it is characterized in that: in the refrigerating chamber sidewall contacted with supporting guide, be provided with the diffusion chamber moved towards along refrigerating chamber, supporting guide is provided with some through holes by through between the cavity between upper and lower conveyer belt and diffusion chamber, the pipeline be communicated with the above space of upper strata conveyer belt by diffusion chamber is provided with in the locular wall of refrigerating chamber, pipeline is provided with air exhauster.
2. the tunnel type liquid nitrogen flash freezer machine of a kind of improvement according to claim 1, it is characterized in that: in the cavity between upper strata conveyer belt and conveying belt of lower floor, be provided with playpipe, the two ends of playpipe are supported on on refrigerating chamber supported on both sides guide rail, and it is through with the through hole on supporting guide, playpipe is provided with some spray-holes upwards, the quantity of playpipe is consistent with the number of openings on one-sided supporting guide, and playpipe is arranged to discharge end successively by refrigerating chamber feed end.
3. the tunnel type liquid nitrogen flash freezer machine of a kind of improvement according to claim 1, it is characterized in that: described conveyer belt is conveying strip, described conveying strip is made up of some pieces of material plates, material plate is long strip type plate, the both sides of material plate are respectively equipped with the torch shape groove of outstanding rectangular teeth and depression, saw shape tooth and torch shape groove interval are arranged, and saw shape tooth inside and are provided with axis hole, and it is hinged that the saw shape tooth on neighbors flitch and torch shape groove realize between material plate by jointed shaft after inlaying.
4. the tunnel type liquid nitrogen flash freezer machine of a kind of improvement according to claim 1, is characterized in that: described conveyer belt is foraminous conveyer.
5. the tunnel type liquid nitrogen flash freezer machine of a kind of improvement according to claim 1, is characterized in that: described refrigerating chamber feed end and discharge end are respectively equipped with liquid nitrogen plugging device; Described liquid nitrogen plugging device comprises the bellows being arranged on foraminous conveyer top, the top of bellows is provided with air intake passage, the bottom of bellows is provided with blowing mouth, seal fixing between the top board of bellows and refrigerating chamber and two side, refrigerating chamber top board is provided with the air inlet through with bellows air intake passage, and air inlet is provided with blower fan.
6. the tunnel type liquid nitrogen flash freezer machine of a kind of improvement according to claim 4, it is characterized in that: between upper and lower conveyer belt, be respectively equipped with blower bottom cavity two ends, blower is provided with blowhole upwards, be provided with blowing arm between blower and described air intake passage, blowing arm is positioned at refrigerating chamber interior.
7. the tunnel type liquid nitrogen flash freezer machine of a kind of improvement according to claim 1, is characterized in that: be provided with some Diffusion fans at refrigerating chamber top along refrigerating chamber trend, the blade of Diffusion fan is positioned at refrigerating chamber inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004867.9A CN104596175A (en) | 2015-01-07 | 2015-01-07 | Improved tunnel type liquid nitrogen instant freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004867.9A CN104596175A (en) | 2015-01-07 | 2015-01-07 | Improved tunnel type liquid nitrogen instant freezer |
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| Publication Number | Publication Date |
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| CN104596175A true CN104596175A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510004867.9A Pending CN104596175A (en) | 2015-01-07 | 2015-01-07 | Improved tunnel type liquid nitrogen instant freezer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091446A (en) * | 2015-09-14 | 2015-11-25 | 王琰 | Double-chamber tunnel type liquid nitrogen instant freezer |
| CN106052237A (en) * | 2016-07-27 | 2016-10-26 | 王琰 | Liquid nitrogen quick freezing cabinet capable of achieving balanced refrigeration |
| CN107421187A (en) * | 2017-08-22 | 2017-12-01 | 河南大学 | A kind of deep-sea fishing liquid air instant-frozen system |
| CN107883631A (en) * | 2017-12-12 | 2018-04-06 | 广州鲜之源生态冷链技术有限公司 | A kind of multinode temperature control device and regulation and control method |
| CN109619164A (en) * | 2018-12-07 | 2019-04-16 | 科威嘉尼（江苏）制冷设备有限公司 | A kind of Double-layer intelligent formula liquid nitrogen flash freezer tunnel structure applied to meat products |
| CN109764592A (en) * | 2019-01-04 | 2019-05-17 | 科威嘉尼（江苏）制冷设备有限公司 | A kind of cabinet type liquid nitrogen flash freezer machine of self-loopa |
| CN116294343A (en) * | 2023-05-16 | 2023-06-23 | 科威嘉尼（江苏）制冷设备有限公司 | Tunnel type liquid nitrogen instant freezer |
-
2015
- 2015-01-07 CN CN201510004867.9A patent/CN104596175A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091446A (en) * | 2015-09-14 | 2015-11-25 | 王琰 | Double-chamber tunnel type liquid nitrogen instant freezer |
| CN106052237A (en) * | 2016-07-27 | 2016-10-26 | 王琰 | Liquid nitrogen quick freezing cabinet capable of achieving balanced refrigeration |
| CN106052237B (en) * | 2016-07-27 | 2018-07-20 | 荣成市同福机械制造有限公司 | A kind of liquid nitrogen flash freezer cabinet of balance refrigeration |
| CN107421187A (en) * | 2017-08-22 | 2017-12-01 | 河南大学 | A kind of deep-sea fishing liquid air instant-frozen system |
| CN107883631A (en) * | 2017-12-12 | 2018-04-06 | 广州鲜之源生态冷链技术有限公司 | A kind of multinode temperature control device and regulation and control method |
| CN109619164A (en) * | 2018-12-07 | 2019-04-16 | 科威嘉尼（江苏）制冷设备有限公司 | A kind of Double-layer intelligent formula liquid nitrogen flash freezer tunnel structure applied to meat products |
| CN109764592A (en) * | 2019-01-04 | 2019-05-17 | 科威嘉尼（江苏）制冷设备有限公司 | A kind of cabinet type liquid nitrogen flash freezer machine of self-loopa |
| CN116294343A (en) * | 2023-05-16 | 2023-06-23 | 科威嘉尼（江苏）制冷设备有限公司 | Tunnel type liquid nitrogen instant freezer |
| CN116294343B (en) * | 2023-05-16 | 2023-08-04 | 科威嘉尼（江苏）制冷设备有限公司 | Tunnel type liquid nitrogen instant freezer |
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Application publication date: 20150506 |