CN113758109A - Low-temperature ozone sterilizing and killing refrigeration house system applied to cold chain articles - Google Patents
Low-temperature ozone sterilizing and killing refrigeration house system applied to cold chain articles Download PDFInfo
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- CN113758109A CN113758109A CN202110950567.5A CN202110950567A CN113758109A CN 113758109 A CN113758109 A CN 113758109A CN 202110950567 A CN202110950567 A CN 202110950567A CN 113758109 A CN113758109 A CN 113758109A
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 223
- 238000005057 refrigeration Methods 0.000 title claims abstract description 63
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 36
- 230000006378 damage Effects 0.000 claims abstract description 41
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 40
- 238000003860 storage Methods 0.000 claims abstract description 30
- 238000012806 monitoring device Methods 0.000 claims abstract description 13
- 239000003595 mist Substances 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000006870 function Effects 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 5
- 230000000593 degrading effect Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 239000007921 spray Substances 0.000 description 5
- 244000000010 microbial pathogen Species 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 235000014102 seafood Nutrition 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960000074 biopharmaceutical Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F25D13/00—Stationary devices, e.g. cold-rooms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/202—Ozone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/13—Biocide decomposition means, e.g. catalysts, sorbents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
-
- 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
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0416—Treating air flowing to refrigeration compartments by purification using an ozone generator
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a low-temperature ozone sterilizing and killing refrigeration house system applied to cold chain articles, which comprises a closed refrigeration house, an ozone gas supply device, an ozone adding system, a gas mixing device, an ozone internal circulation destroying device, an ozone tail gas destroying device, an ozone concentration monitoring device and a control system, wherein the temperature in the refrigeration house is adjustable; the refrigerator is used for placing cold chain articles to be disinfected during disinfection and is provided with one or a plurality of sealing doors, and the ozone adding system, the gas mixing device and the ozone internal circulation destruction device are arranged inside the refrigerator; the ozone gas supply device is connected with an ozone adding system, and the ozone adding system is provided with a plurality of ozone adding ports for uniformly spraying ozone gas or gas mist into the refrigeration house; the gas mixing device is used for keeping the concentration of ozone at each position in the refrigeration house uniform; the ozone internal circulation destruction device is used for rapidly destroying ozone in the cold storage when disinfection is finished; the ozone tail gas destruction device is used for eliminating residual ozone in the exhaust gas and keeping the pressure inside and outside the refrigeration house balanced.
Description
Technical Field
The invention relates to the field of cold chain article disinfection, in particular to a low-temperature ozone disinfection refrigeration house system applied to cold chain articles, and belongs to the technical field of disinfection.
Background
With the development of social economy, the living standard of people is gradually improved, various goods, particularly cold chain goods, are circulated in the global range, the goods or the outer packaging materials of the goods are easily infected with some bacteria and viruses in the production and circulation links, and the goods or the outer packaging materials of the goods also contain part of pathogenic microorganisms which can be continuously proliferated under the appropriate environmental conditions, if the goods or the outer packaging materials are not disinfected, the physical health of people in contact can be seriously harmed, even the pathogenic microorganisms are spread in a large range, and great risks are caused to the life and the environmental safety of people.
In customs or harbors, for example, the flow rate of cargoes at the inlet and the outlet is large, and many cargoes, particularly cold chain articles, need to be kept at temperature and rapidly circulated. Common cold chain articles include seafood, meat, vegetables, fruits and other frozen and low temperature foods, pharmaceuticals, biologicals, etc. at-40 deg.C to +10 deg.C.
The existing goods are generally stored or subpackaged and transported after arriving at a port and being quarantined and safe. In order to prevent the risk to the greatest extent, the goods need to be thoroughly sterilized before being stored or subpackaged and transported after arriving at port, so that the spreading and the propagation of pathogenic microorganisms are prevented.
The current goods of taking usually to spray chlorine-containing disinfectant and disinfecting, but its surface that needs to every goods sprays comprehensively, for reaching the disinfection effect, need move the goods and make its each surface receive to spray comprehensively, increase work load and disinfection time, it is easy to cause the disinfection incomplete or spray excessive formation waste because of spraying inadequately, still probably causes secondary pollution to the environment simultaneously.
Therefore, a disinfection system which can rapidly disinfect goods, has reliable disinfection effect, can maintain temperature, is safe and reliable, can rapidly disinfect goods, accelerates the circulation of goods and avoids overstocked goods is needed.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a low-temperature ozone sterilizing refrigeration house system applied to cold chain articles, which can rapidly sterilize the articles before the articles enter transportation, storage and circulation links, has reliable sterilizing effect, no secondary pollution, safety and high efficiency, avoids the diffusion and propagation of pathogenic microorganisms, can accelerate the turnover and circulation speed of the articles, and avoids the overstock of the articles.
The technical scheme of the invention is realized as follows:
the utility model provides a be applied to low temperature ozone disinfection freezer system of cold chain article, contains a closed freezer, its characterized in that: the temperature in the cold storage is adjustable, and the cold storage further comprises an ozone gas supply device, an ozone adding system, a gas mixing device, an ozone internal circulation destruction device, an ozone tail gas destruction device, an ozone concentration monitoring device and a control system; the refrigerator is used for placing cold chain articles to be disinfected during disinfection and is provided with one or a plurality of sealing doors, and the ozone adding system, the gas mixing device and the ozone internal circulation destruction device are arranged inside the refrigerator; the ozone gas supply device is connected with an ozone adding system, and the ozone adding system is provided with a plurality of ozone adding ports for uniformly spraying ozone gas or gas mist into the refrigeration house; the gas mixing device is used for keeping the concentration of ozone at each position in the refrigeration house uniform; the ozone internal circulation destruction device is used for rapidly destroying ozone in the cold storage when disinfection is finished; the ozone tail gas destruction device is used for eliminating residual ozone in the exhaust gas and keeping the pressure inside and outside the refrigeration house balanced.
For better technical effect, the technical scheme of the invention applied to the cold storage of the cold chain articles can be further characterized by the following technical characteristics:
1. during the disinfection period, the ozone concentration in the refrigerator is between 20ppm and 10000 ppm.
2. The gas mixing device is one or a combination of a plurality of fans, Venturi mixers and circulating fans.
3. Comprises a gas circulating device, an ozone destruction catalyst and an active carbon accessory, and has the functions of degrading the concentration of ozone and promoting the gas circulation.
4. The ozone tail gas destruction device comprises a blower, an ozone destruction catalyst and an active carbon accessory, and has the functions of eliminating residual ozone in the exhaust gas and keeping the pressure balance inside and outside the refrigerator.
5. The ozone adding system comprises an ozone adding pipeline and a plurality of ozone adding ports arranged on the ozone adding pipeline, and the ozone adding pipeline and the ozone adding ports are uniformly distributed along the inner top surface of the refrigeration house and/or the inner peripheral side surface of the refrigeration house.
6. The ozone concentration monitoring device is arranged outside the refrigeration house, and the sampling pipe of the ozone concentration monitoring device extends into the refrigeration house to extract gas in the refrigeration house for detecting the concentration of ozone gas in the refrigeration house.
7. The temperature in the cold storage is between-40 ℃ and +10 ℃.
8. When the temperature in the cold storage is close to or reaches the low temperature of minus 20 ℃ to minus 15 ℃, the ozone concentration in the cold storage is not lower than 30ppm during the disinfection.
9. Further, the humidity in the cold storage is 60% -96%.
10. A plurality of gas mixing devices are arranged in the refrigeration house and used for enabling the concentration of ozone in the refrigeration house to be more balanced.
11. The control system comprises the control functions of monitoring and adjusting the temperature in the refrigeration house, monitoring the concentration of ozone, adjusting the concentration of ozone, internally circulating the ozone destroying device and opening and closing the ozone tail gas destroying device.
12. Further, the ozone adding ports are arranged at specific positions in the cold storage.
Compared with the prior art, the cold storage applied to the cold chain articles has the following advantages that:
1. the invention is applied to the low-temperature ozone sterilizing and killing refrigeration house system of cold chain articles, the ozone adding ports of the ozone adding system are distributed in the refrigeration house in multiple points, which is beneficial to adding ozone gas in the refrigeration house in multiple points, can accelerate the ozone to reach the requirement of sterilizing concentration in the refrigeration house and be distributed uniformly, shortens the sterilizing action time, improves the sterilizing efficiency and the reliability,
2. the low-temperature ozone sterilizing and killing refrigeration house system applied to the cold chain articles, disclosed by the invention, has the advantages that the gas mixing device and the ozone internal circulation damage device are distributed at multiple points in the cold house, so that the rapid mixing of ozone and gas in the refrigeration house can be accelerated, the airflow circulation is forced, the uniform distribution of ozone gas in the interior of the cold house can be accelerated, the concentration of ozone in the refrigeration house is basically uniform, and the disinfection efficiency and the reliability are greatly improved.
3. The sterilization is carried out through ozone gas sterilization, gas can be diffused and distributed to all corners of a refrigeration house, the surfaces of articles and even the outer packaging of the articles, the sterilization effect is good, the efficiency is high, the articles do not need to be moved during sterilization, the workload and the time are reduced, and the labor cost and the time cost are obviously reduced.
4. Have temperature monitoring and regulatory function, can adjust freezer temperature according to the save needs of different goods during the use, do not influence the refrigeration effect of goods.
5. The ozone inner circulation destruction device is used for rapidly destroying ozone in the cold storage after disinfection is finished so as to reach safe concentration as soon as possible, shorten the waiting time of ozone degradation to safe concentration, and after disinfection is finished, a worker can enter the cold storage as soon as possible to take out disinfected cold chain articles, so that the goods circulation speed is increased, the productivity is improved, the goods overstock is solved, and the storage cost and other costs are effectively reduced.
6. The ozone tail gas destruction device is used for reducing the concentration of residual ozone in the exhaust gas and avoiding polluting the environment.
7. The control system comprises the control functions of temperature monitoring and adjusting, ozone concentration monitoring, ozone concentration adjusting and starting and closing of the ozone destruction device, and can adjust the appropriate temperature and ozone concentration according to the characteristics of the specific cold chain articles to be disinfected, so that the disinfection effect is ensured and the energy is saved.
8. Ozone concentration monitoring is arranged at multiple points in the refrigeration house, so that the ozone concentration in the refrigeration house can be conveniently and timely regulated.
Drawings
FIG. 1 is an overall schematic view of a closed type refrigerator 1 applied to a large ozone sterilizing refrigerator system for cold chain articles according to the present invention
FIG. 2 is a front view of the closed type refrigerator 1 shown in FIG. 1
FIG. 3 is a right side view of the closed refrigerator 1 shown in FIG. 1
Fig. 4 is a sectional view of the closed refrigerator 1 shown in fig. 2 in the direction of a-a and an overall schematic view of a large ozone sterilizing and refrigerating system applied to cold chain goods according to the present invention.
In the figure, 1 is a closed refrigeration house, 11 is a sealing door, 2 is an ozone gas supply device, 21 is an ozone output port of the ozone gas supply device, 22 is a connecting pipeline, 3 is an ozone adding system, 31 is an ozone adding pipeline, 311 is an ozone input port of the ozone adding pipeline 31, 4 is an ozone concentration monitor, 41 is a sampling pipe of the ozone concentration monitor, 5 is an ozone tail gas destruction device, 6 is an ozone internal circulation destruction device, and 7 is a gas mixing device.
The specific implementation mode is as follows:
example one
In order to better illustrate the technical scheme of the invention, an embodiment of the invention, which is applied to a large ozone sterilizing and refrigerating room for cold chain goods, is described in detail below with reference to the attached drawings 1-4.
Fig. 1-4 show an embodiment of the present invention for a large ozone sterilizing refrigerator for cold chain goods, which, as shown in the drawings,
a low-temperature ozone sterilizing and killing refrigeration house system 100 applied to cold chain articles comprises a closed refrigeration house 1, the temperature in the refrigeration house can be regulated, and the system also comprises an ozone gas supply device 2, an ozone adding system 3, a gas mixing device 7, an ozone internal circulation destruction device 6, an ozone tail gas destruction device 5, an ozone concentration monitoring device 4 and a control system; the refrigerator 1 is used for placing cold chain articles to be disinfected during disinfection and is provided with one or a plurality of sealing doors 11, and the ozone adding system 3, the gas mixing device 7 and the ozone internal circulation destruction device 6 are arranged inside the refrigerator 1; the ozone gas supply device 2 is connected with an ozone adding system 3 through a pipeline 22, and the ozone adding system 3 is provided with a plurality of ozone adding ports for uniformly spraying ozone gas or gas mist into the refrigeration house 1; the gas mixing device 7 is used for keeping the concentration of ozone at each position in the refrigeration house uniform; the ozone internal circulation destruction device 6 is used for rapidly destroying ozone in the cold storage at the end of disinfection; the ozone tail gas destruction device 5 is used for eliminating residual ozone in the exhaust gas and keeping the pressure inside and outside the refrigeration house balanced.
The cold chain articles include seafood, meat, vegetables, fruits and other frozen and low temperature foods, medicines, biological products and the like with the temperature of-40 ℃ to +10 ℃.
Preferably, the temperature in the cold store is maintained between-40 ℃ and +10 ℃.
In order to ensure that a good disinfection effect is achieved, the humidity in the cold storage is maintained between 60% and 96% during disinfection. Preferably, the humidity in the cold store is maintained between 60% and 90% during sterilization.
In order to achieve a good disinfection effect quickly, the ozone concentration in the cold storage is maintained between 20ppm and 10000ppm during the disinfection.
Preferably, when the temperature in the refrigerator is close to or reaches the low temperature of minus 20 ℃ to minus 15 ℃, the ozone concentration in the refrigerator is not lower than 30ppm during the disinfection.
In this embodiment, the ozone adding system 3 includes an ozone adding pipeline 31 and a plurality of ozone adding ports formed therein, and the ozone adding pipeline and the ozone adding ports are distributed along the top surface of the inner side of the refrigeration storage. In practical application, the ozone adding pipelines and the ozone adding ports can be uniformly distributed on the peripheral side surfaces inside the refrigeration house as required, and the ozone adding pipelines and the ozone adding ports can also be uniformly distributed on the inner top surface and the peripheral side surfaces of the refrigeration house. And an ozone adding pipeline and an ozone adding port can be arranged on the bottom surface of the inner side of the refrigeration house.
In the embodiment, the ozone adding port is formed by directly arranging a plurality of small holes on the ozone adding pipeline in a punching mode to be used as the ozone adding port for spraying ozone gas or gas mist, and the ozone adding port faces to the bottom surface of the refrigeration house or faces to all directions in the refrigeration house respectively; preferably, the small holes are uniformly distributed on the ozone adding pipeline along the top surface of the inner side of the refrigeration house. Preferably, the small holes are distributed on the ozone feeding pipeline in a radial shape.
Further, a plurality of ozone is thrown and is thrown mouthful specific position of setting in the freezer, ozone of setting on specific position is thrown and is favorable to ozone to throw in evenly and reach the concentration that needs as soon as possible in the freezer.
In practical application, a plurality of openings can be arranged on the ozone adding pipeline, and a spray head is arranged at the opening to serve as an ozone adding port and used for adding ozone gas or ozone-containing gas mist.
The gas mixing device in the technical scheme of the invention can be one or a combination of a plurality of fans, venturi mixers and circulating fans. In this embodiment, multiple spot sets up a plurality of circulating fan as gas mixing device in the freezer for gas flow and mixing accelerate, make the inside ozone concentration of freezer more balanced.
The ozone internal circulation destruction device comprises a gas circulation device, an ozone destruction catalyst and an activated carbon accessory. The ozone internal circulation destruction device 6 in this embodiment is a device having functions of degrading ozone concentration and promoting gas circulation, and is composed of a gas circulation device, an ozone destruction catalyst, activated carbon and other accessories. The ozone generator is used for quickly destroying ozone in the cold storage after disinfection (before people enter and exit) so as to reach safe concentration as soon as possible.
The ozone tail gas destruction device comprises a blower, an ozone destruction catalyst and an active carbon accessory. The ozone tail gas destruction device 5 in the embodiment is a device formed by combining accessories such as a blower, an ozone destruction catalyst, activated carbon and the like, and is used for reducing residual ozone in the gas discharged outside the refrigeration house and avoiding polluting the environment.
Further, in this embodiment, an ozone concentration monitor 4 is provided for detecting the ozone gas concentration in the refrigerator. Ozone concentration monitoring devices 4 are installed outside the refrigeration house 1, and its sampling pipe 41 stretches into the refrigeration house and extracts the gas in the refrigeration house to ozone concentration monitoring devices 4, and ozone concentration monitoring devices 4 carry out ozone concentration survey to the gas of sampling.
For better technical effect, a control system is further provided in the embodiment, and the refrigeration storage, the ozone gas supply device, the ozone concentration monitoring device and the ozone destruction device are electrically connected with the control system. The control system comprises the control functions of monitoring and adjusting the humidity in the refrigeration house, monitoring the concentration of ozone, adjusting the concentration of ozone and starting and closing the ozone destruction device.
The low-temperature ozone sterilizing and refrigerating room system applied to the cold chain articles can be widely applied to the cold chain articles needing sterilization, such as frozen foods, medicines, biological products and the like. The method can also be applied to customs import and export articles, airport luggage, express delivery articles, supermarket goods, cold chain transportation and the like. The application of the method can improve the sanitary safety of circulating articles, prevent biological pollution and spread of various epidemic situations, guarantee the health and safety of people, and remarkably reduce the risk of spread of the epidemic situations and the control cost. It can also be used for sterilizing daily circulating articles or other articles needing sterilization.
Claims (13)
1. A low temperature ozone disinfection freezer system (100) for cold chain goods, comprising a closed freezer (1), characterized in that: the temperature in the cold storage is adjustable, and the cold storage further comprises an ozone gas supply device (2), an ozone adding system (3), a gas mixing device (7), an ozone internal circulation destruction device (6), an ozone tail gas destruction device (5), an ozone concentration monitoring device (4) and a control system; the refrigerator (1) is used for placing cold chain articles to be disinfected during disinfection and is provided with one or a plurality of sealing doors (11), and the ozone adding system (3), the gas mixing device (7) and the ozone internal circulation destruction device (6) are arranged inside the refrigerator (1); the ozone gas supply device (2) is connected with an ozone adding system (3), and the ozone adding system (3) is provided with a plurality of ozone adding ports for uniformly spraying ozone gas or gas mist into the refrigeration house (1); the gas mixing device (7) is used for keeping the concentration of ozone at each position in the refrigeration house uniform; the ozone internal circulation destruction device (6) is used for rapidly destroying ozone in the cold storage when the disinfection is finished; the ozone tail gas destruction device (5) is used for eliminating residual ozone in the exhaust gas and keeping the pressure inside and outside the refrigeration house balanced.
2. A low temperature ozone sterilization cold storage system (100) for cold chain articles, according to claim 1, wherein: during the disinfection period, the ozone concentration in the refrigerator is between 20ppm and 10000 ppm.
3. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: the gas mixing device (7) is one or a combination of a plurality of fans, Venturi mixers and circulating fans.
4. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: the ozone internal circulation destruction device (6) comprises a gas circulation device, an ozone destruction catalyst and an activated carbon accessory, and has the functions of degrading ozone concentration and promoting gas circulation.
5. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: the ozone tail gas destruction device (5) comprises a blower, an ozone destruction catalyst and an activated carbon accessory, and has the functions of eliminating residual ozone in the exhaust gas and keeping the pressure balance inside and outside the refrigerator.
6. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: ozone dosing system (3) contain ozone and throw feeder channel (31) and a plurality of ozone that sets up on it and throw feeder channel, and ozone is thrown feeder channel (31) and ozone and is thrown feeder channel along the inboard top surface of freezer and/or the inside side equipartition all around of freezer.
7. The large ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: the ozone concentration monitoring device (4) is further included, the ozone concentration monitoring device (4) is installed outside the refrigeration house (1), and a sampling pipe (41) of the ozone concentration monitoring device extends into the refrigeration house to extract gas in the refrigeration house for detecting the concentration of ozone gas in the refrigeration house.
8. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: the temperature in the cold storage is between-40 ℃ and +10 ℃.
9. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: when the temperature in the cold storage is close to or reaches the low temperature of minus 20 ℃ to minus 15 ℃, the ozone concentration in the cold storage is not lower than 30ppm during the disinfection.
10. The ozone sterilizing refrigerator applied to cold chain articles as claimed in claim 1, characterized in that: the humidity in the cold storage is 60% -96%.
11. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: a plurality of gas mixing devices (7) are arranged in the refrigeration house and are used for enabling the concentration of ozone in the refrigeration house to be more balanced.
12. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: the control system comprises the control functions of monitoring and adjusting the temperature in the refrigeration house, monitoring the concentration of ozone, adjusting the concentration of ozone, internally circulating the ozone destroying device and opening and closing the ozone tail gas destroying device.
13. The ozone sterilizing and refrigerating system applied to the cold chain articles as claimed in claim 1, wherein: the ozone adding ports are arranged at specific positions in the cold storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110950567.5A CN113758109A (en) | 2021-08-18 | 2021-08-18 | Low-temperature ozone sterilizing and killing refrigeration house system applied to cold chain articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110950567.5A CN113758109A (en) | 2021-08-18 | 2021-08-18 | Low-temperature ozone sterilizing and killing refrigeration house system applied to cold chain articles |
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| Publication Number | Publication Date |
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| CN113758109A true CN113758109A (en) | 2021-12-07 |
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| CN202110950567.5A Pending CN113758109A (en) | 2021-08-18 | 2021-08-18 | Low-temperature ozone sterilizing and killing refrigeration house system applied to cold chain articles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266974A (en) * | 2021-04-08 | 2021-08-17 | 深圳市便易通科技有限公司 | But bright cabinet is given birth to self-sterilizer's anti-infection virus's intelligence |
-
2021
- 2021-08-18 CN CN202110950567.5A patent/CN113758109A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266974A (en) * | 2021-04-08 | 2021-08-17 | 深圳市便易通科技有限公司 | But bright cabinet is given birth to self-sterilizer's anti-infection virus's intelligence |
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