CN113720068B - Refrigerated container with cobalt source irradiation disinfection - Google Patents

Refrigerated container with cobalt source irradiation disinfection Download PDF

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Publication number
CN113720068B
CN113720068B CN202110910615.8A CN202110910615A CN113720068B CN 113720068 B CN113720068 B CN 113720068B CN 202110910615 A CN202110910615 A CN 202110910615A CN 113720068 B CN113720068 B CN 113720068B
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China
Prior art keywords
cobalt source
refrigeration
box body
irradiation
lead
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CN202110910615.8A
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Chinese (zh)
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CN113720068A (en
Inventor
蒲亮
张德润
张胜棋
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Xian Jiaotong University
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Xian Jiaotong University
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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/015—Preserving by irradiation or electric treatment without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/06—Freezing; Subsequent thawing; Cooling
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/263—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with corpuscular or ionising radiation, i.e. X, alpha, beta or omega radiation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D23/02—Doors; Covers
    • 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
    • F25D23/06—Walls
    • 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
    • F25D29/008—Alarm devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85—Food storage or conservation, e.g. cooling or drying

Abstract

A refrigerated container sterilized by cobalt source irradiation comprises a box body, wherein a cargo loading area, a cobalt source storage and transmission mechanism and a refrigeration and control mechanism are arranged in the box body; the box body and the box door both comprise steel plate structure layers and lead plate protective layers arranged on the inner sides of the steel plate structure layers; the cobalt source storage and transmission mechanism comprises a cobalt source storage device and a cobalt source transmission device, the cobalt source storage device adopts a lead shell, a cobalt source is stored in the lead shell, a window used for the cobalt source to emit radiation rays is formed in the lead shell, and the cobalt source transmission device comprises a guide rail arranged along a cargo loading area and a fixing device used for installing the cobalt source storage device on the guide rail; the refrigeration and control mechanism comprises a refrigeration inner machine, a refrigeration outer machine and a control panel, the refrigeration inner machine is arranged on one side of the goods loading area through a partition plate, the refrigeration outer machine is arranged on the box body, and the control panel sends an irradiation ray moving and refrigeration instruction from the outside of the box body. The invention can realize mobile disinfection in the cold chain transportation process.

Description

Refrigerated container with cobalt source irradiation disinfection
Technical Field
The invention relates to a container, in particular to a refrigerated container sterilized by irradiation of a cobalt source.
Background
The refrigerated container is used as a movable refrigeration house special for transporting perishable goods, has unique superiority in the field of cold chain product transportation, and can rapidly transport the goods to a destination on the premise of ensuring the quality of the goods. The mechanical refrigerated container with the refrigerating equipment is the most mature refrigerated container with the most extensive application, and has the advantages of wide temperature adjusting range, convenient automatic control, uniform temperature distribution in the container, suitability for long-distance transportation and the like.
In the novel coronavirus prevention and control link, imported cold chain food can be infected with viruses in production, packaging and circulation links, the low-temperature environment of the traditional cold chain is favorable for the viruses to keep the activity for a long time, and the viruses can survive for months in the environment at minus 20 ℃. There is increasing evidence that frozen seafood or meat products may be transmitted with viruses in the countries where the disease is located. Therefore, sterilization and disinfection of goods in cold chain transportation are necessary epidemic prevention measures.
The irradiation processing technology is a technology in which energy of an electron beam generated by an electron accelerator or a gamma ray generated by a radioisotope is transferred to an irradiated substance, and physical properties and chemical composition of the irradiated substance are changed by an ionizing radiation. The new processing technology can be used for killing microorganisms such as worm eggs, germs, viruses and the like which are harmful to human bodies. The irradiation processing technology generally uses gamma rays or electron beam rays, wherein the gamma rays have stronger penetrating power and are suitable for irradiating cold chain transportation cargos with larger volume.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a refrigerated container sterilized by irradiation of a cobalt source, which can be used for movable sterilization in a cold chain transportation process, and the sterilization process is automatically completed without close contact between personnel and goods.
In order to achieve the purpose, the invention has the following technical scheme:
a refrigerated container sterilized by cobalt source irradiation comprises a box body, wherein a cargo loading area, a cobalt source storage and transmission mechanism and a refrigeration and control mechanism are arranged in the box body; the box body is provided with a box door, and both the box body and the box door comprise a steel plate structure layer and a lead plate protective layer arranged on the inner side of the steel plate structure layer; the cobalt source storage and transmission mechanism is separated from the goods loading area through an isolation net and comprises a cobalt source storage device and a cobalt source transmission device, the cobalt source storage device adopts a lead shell, a cobalt source is stored in the lead shell, a window used for emitting irradiation rays by the cobalt source is formed in the lead shell, the cobalt source transmission device comprises a guide rail arranged along the goods loading area and a fixing device used for installing the cobalt source storage device on the guide rail, and the guide rail can drive the cobalt source storage device to move; the refrigeration and control mechanism comprises a refrigeration inner machine, a refrigeration outer machine and a control panel, the refrigeration inner machine is arranged on one side of the goods loading area through a partition plate, and the refrigeration inner machine is communicated with the goods loading area through an air inlet air channel and an air outlet air channel respectively; the refrigeration outer machine is arranged on the box body and is matched with the refrigeration inner machine to realize refrigeration of the goods loading area; the control panel is arranged on the box body, and an irradiation ray moving and refrigerating instruction is sent from the outside of the box body.
As a preferable scheme of the present invention, a gamma ray detector is disposed in a region between the outdoor unit and the indoor unit, the gamma ray detector is connected to a control panel, and when the radiation content exceeds a standard, the control panel displays alarm information.
In a preferred embodiment of the present invention, the cargo loading area is disposed behind the door, the cobalt source storage and transportation mechanism is disposed above the cargo loading area, and the refrigeration and control mechanism is disposed behind the cargo loading area.
As a preferable scheme of the invention, a double-layer protection door is arranged on one side of the box body, and the cobalt source storage and transmission mechanism can be taken out or put in through the double-layer protection door.
As a preferable scheme of the invention, one end of the double-layer protective door is attached to the side wall of the box body, a supporting plate is arranged inwards along the inner wall of the box body, the supporting plate is connected with the end part of the partition plate, the isolation net is connected between the end part of the supporting plate and the inner wall of the box body, and the other end of the double-layer protective door is attached to the plate surface of the supporting plate.
As a preferable scheme of the invention, one end of the guide rail is provided with a limiting device, and damping springs are respectively arranged between the upper side and the lower side of the limiting device and the side wall of the box body and between the upper side and the lower side of the limiting device and the plate surface of the supporting plate.
In a preferred embodiment of the present invention, the cobalt source storage device is a cylindrical housing, and the lead protective layers are stacked between the cobalt source and the housing, each lead protective layer can rotate around the cobalt source, and each lead protective layer is provided with a notch, and when the notches of all the lead protective layers are opposite to the window on the housing, the cobalt source emits the irradiation radiation.
As a preferable scheme of the present invention, a lead baffle capable of sliding and opening along an axial direction is disposed on the window of the housing, and a limit structure is disposed in a sliding direction of the lead baffle.
In a preferred embodiment of the present invention, both ends of the housing are respectively mounted on the guide rails by fixing devices.
As a preferred scheme of the invention, the air inlet duct and the air outlet duct both adopt labyrinth ducts.
Compared with the prior art, the invention has the following beneficial effects: the all-directional movable irradiation disinfection of the cargo loading area is realized through the cobalt source storage device and the cobalt source transmission device which are arranged in the box body, and the movable disinfection in the cold chain transportation process can also be realized without the limitation of position and disinfection equipment; through personnel externally operating the control panel, can realize the automatic irradiation disinfection and sterilization of refrigerated container, clear away the virus and the bacterium that the goods carried, be particularly useful for and clear away the novel coronavirus of hiding on refrigerated goods surface, need not personnel and goods during the disinfection and closely contact, can effectively prevent that disinfection personnel from infecting the virus. The cobalt source storage device can be detached and replaced, and a plurality of refrigerated containers can be sterilized by one cobalt source storage device, so that the utilization rate of the cobalt source and gamma rays is improved, and the maintenance is more convenient. The invention applies the cobalt source irradiation processing technology to the refrigerated container, utilizes the gamma rays to effectively kill viruses and bacteria, in particular to novel coronavirus which is hidden on the surface of refrigerated goods, can automatically carry out the disinfection process, avoids the possible contact propagation of manual disinfection, can be used as equipment with the functions of transportation and disinfection, and has wide popularization and application values.
Furthermore, a gamma-ray detector is arranged in the area between the refrigerating outer machine and the refrigerating inner machine, the gamma-ray detector can monitor the content of gamma-rays escaping from an air duct of the refrigerating inner machine in real time, and an alarm is given when the content exceeds the standard, so that the use safety is guaranteed.
Furthermore, the air inlet duct and the air outlet duct both adopt labyrinth type ducts, so that the gamma rays are effectively prevented from escaping from the air ducts from the cargo loading area, and the safety of the cobalt source in the irradiation process is improved.
Drawings
FIG. 1 is a schematic view of a refrigerated container of the present invention having a cobalt source for radiation sterilization;
FIG. 2 is a schematic view of a cobalt source storage apparatus according to the present invention;
FIG. 3 is a schematic cross-sectional view of a cobalt source storage device of the present invention: (a) an irradiation state; (b) a non-irradiated state.
In the drawings: 100-cobalt source storage and transport mechanism; 110-double layer guard gate; 120-cobalt source storage; 130-a limiting device; 140-a damping spring; 150-a cobalt source delivery device; 160-an isolation net; 121-left fixation; 122-left lead baffle; 123-a cobalt source; 124-lead protective layer; 125-right lead baffle; 126-right side fixation; 200-refrigeration and control mechanism; a 210-gamma ray detector; 220-a control panel; 230-a refrigeration indoor unit; 240-air inlet duct; 250-air outlet duct; 260-a refrigerating external machine; 300-a box body; 310-lead plate protective layer; 320-steel plate structure layer; 330-a door; 400-cargo loading area.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the refrigerated container for cobalt source irradiation sterilization of the present invention mainly comprises a container body 300, wherein a cargo loading area 400, a cobalt source storage and transportation mechanism 100 and a refrigeration and control mechanism 200 are arranged inside the container body 300.
Cobalt source storage and transfer mechanism 100 comprises double guard door 110, cobalt source storage device 120, stop device 130, shock absorbing spring 140, cobalt source transfer device 150 and isolation mesh 160. The cobalt source storage device 120 and the cobalt source transmission device 150 are located above the cargo loading area 400, and are separated by the isolation net 160, and the isolation net 160 can protect the cobalt source transmission device 150 from being damaged by cargo collision during cargo loading and unloading. The cobalt source storage device 120 is fixed in the limiting device 130 in the non-irradiation mode, the limiting device 130 is connected with the damping spring 140 up and down, and the damping spring 140 can reduce the impact and vibration on the cobalt source storage device 120 when the container bumps or collides with the ground. The cobalt source storage device 120 is mechanically connected to the cobalt source transfer device 150, and the cobalt source storage device 120 is horizontally slidable on the transfer device so that the irradiation range covers the entire cargo area of the container. After the irradiation mode is started, the cobalt source storage device 120 exposes the cobalt source 123 arranged inside, so that the gamma rays emitted by the cobalt source 123 irradiate the goods in the box downwards and slide horizontally on the cobalt source transmission device 150. A double-layer protection door 110 is arranged beside the limiting device 130 and the damping spring 140, so that maintenance personnel can open the double-layer protection door 110 to overhaul the internal device, and can take out the internal cobalt source storage device 120 from the double-layer protection door after the irradiation disinfection. The cobalt source storage device 120 is convenient to mount and dismount, and one cobalt source storage device 120 can be used for a plurality of refrigerated containers for a plurality of times, so that the utilization rate of the cobalt source 123 and gamma rays is improved.
Referring to fig. 2, the cobalt source storage device 120 of the present invention is a cylindrical housing, and comprises a left side fixing device 121, a left side lead blocking plate 122, a plurality of lead protection layers 124, a right side lead blocking plate 125, a right side fixing device 126, and the like. The left and right fixtures 121 and 126 may allow the cobalt source storage device 120 to be secured to the cobalt source transport device 150 and slide along the rails. The cobalt source 123 is wrapped in the lead protection layers 124, each lead protection layer 124 has a notch of about 90 degrees for accommodating the left lead baffle 122 and the right lead baffle 125, each lead protection layer 124 can rotate along the central axis of the cylinder, the lead baffles on the two sides can slide outwards through a mechanical device, and the sliding distance is limited by the limit structure. In the non-irradiation mode, the lead baffles on both sides are closed towards the middle, and the lead protection layers 124 are rotated to a non-homodromous angle to shield gamma rays having radioactivity, as shown in fig. 3 (b); in the irradiation mode, the lead baffles on both sides slide to both sides, and simultaneously the lead protection layers 124 rotate to the vertical downward direction, exposing the cobalt source 123 arranged inside, so that the gamma rays emitted from the cobalt source 123 can irradiate on the goods in the goods loading area 400, thereby playing a role of disinfection and sterilization, as shown in fig. 3 (a).
The refrigeration and control mechanism 200 includes a gamma ray detector 210, a control panel 220, a refrigeration inner unit 230, an air inlet duct 240, an air outlet duct 250, a refrigeration outer unit 260, etc., and other conventional components of the refrigeration system, such as a compressor, a capillary tube, a filter, etc., are not shown in the figure but are included in the refrigeration system. The outer side of the box body 300 is provided with a control panel 220 for controlling refrigeration and irradiation systems, which can be used for controlling the refrigeration and disinfection processes in the box; the gamma ray detector 210 is arranged in the area between the refrigerating outer machine 260 and the refrigerating inner machine 230, can monitor the content of gamma rays in real time, and gives an alarm and displays the alarm on the control panel 220 when the radiation content exceeds the standard and is harmful to human bodies; the refrigerating indoor unit 230 is installed on the lead-shielding partition adjacent to the cargo loading area 400, and an upper air inlet and a lower air outlet thereof are connected to the air inlet duct 240 and the air outlet duct 250, respectively. The air inlet duct 240 and the air outlet duct 250 both adopt labyrinth ducts, and the labyrinth ducts can ensure the circulation refrigeration of cold air in the box body, effectively prevent gamma rays from escaping from the ducts, and improve the utilization rate of the gamma rays and the safety of the device.
The box body 300 is provided with a box door 330, both the box body 300 and the box door 330 comprise a steel plate structure layer 320 and a lead plate protective layer 310 arranged on the inner side of the steel plate structure layer 320, and the lead plate protective layer 310 plays a role in shielding gamma rays and prevents the gamma rays from penetrating the container to cause pollution to the outside. The steel plate structure layer 320 and the door 330 are the refrigerated container, and the door 330 is made of multiple layers of materials, wherein the inner layer is a lead plate and the outer layer is a steel plate.
The refrigerated container with the functional areas and the corresponding devices can realize mobile disinfection in the cold chain transportation process, and is not limited by positions and disinfection equipment; the control panel is controlled by personnel outside, so that the automatic irradiation disinfection and sterilization of the refrigerated container can be realized, the personnel do not need to be in close contact with the goods during the process, and the virus is prevented from being indirectly transmitted by the disinfection personnel; the cobalt source storage device can be detached and replaced, maintenance personnel can conveniently overhaul, one cobalt source storage device can be used for disinfecting and sterilizing a plurality of refrigerated containers for many times, and the utilization rate of the cobalt source and gamma rays can be improved.
While the invention has been described in further detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A refrigerated container sterilized by irradiation of a cobalt source, characterized in that: comprises a box body (300), wherein a cargo loading area (400), a cobalt source storage and transmission mechanism (100) and a refrigeration and control mechanism (200) are arranged in the box body (300);
the box body (300) is provided with a box door (330), and both the box body (300) and the box door (330) comprise a steel plate structure layer (320) and a lead plate protective layer (310) arranged on the inner side of the steel plate structure layer (320);
the cobalt source storage and transmission mechanism (100) is separated from the cargo loading area (400) through an isolation net (160), the cobalt source storage and transmission mechanism (100) comprises a cobalt source storage device (120) and a cobalt source transmission device (150), the cobalt source storage device (120) adopts a lead shell, a cobalt source (123) is stored in the lead shell, a window used for emitting irradiation rays by the cobalt source (123) is formed in the lead shell, the cobalt source transmission device (150) comprises a guide rail arranged along the cargo loading area (400) and a fixing device used for installing the cobalt source storage device (120) on the guide rail, and the guide rail can drive the cobalt source storage device (120) to move;
the refrigeration and control mechanism (200) comprises a refrigeration inner machine (230), a refrigeration outer machine (260) and a control panel (220), the refrigeration inner machine (230) is arranged on one side of the goods loading area (400) through a partition plate, and the refrigeration inner machine (230) is communicated with the goods loading area (400) through an air inlet air channel (240) and an air outlet air channel (250) respectively; the refrigeration outer machine (260) is arranged on the box body (300), and the refrigeration outer machine (260) is matched with the refrigeration inner machine (230) to realize refrigeration of the cargo loading area (400); the control panel (220) is arranged on the box body (300), and the irradiation ray moving and refrigerating instructions are sent from the outside of the box body (300).
2. A refrigerated container sterilized by irradiation from a cobalt source as claimed in claim 1 wherein: and a gamma-ray detector (210) is arranged in the area between the refrigerating outer machine (260) and the refrigerating inner machine (230), the gamma-ray detector (210) is connected with the control panel (220), and when the radiation content exceeds the standard, alarm information is displayed on the control panel (220).
3. A refrigerated container sterilized by irradiation from a cobalt source as claimed in claim 1 wherein: the cargo loading area (400) is arranged behind the box door (330), the cobalt source storage and transmission mechanism (100) is arranged above the cargo loading area (400), and the refrigeration and control mechanism (200) is arranged behind the cargo loading area (400).
4. A refrigerated container sterilized by irradiation from a cobalt source as claimed in claim 3 wherein: one side of the box body (300) is provided with a double-layer protection door (110), and the cobalt source storage and transmission mechanism (100) can be taken out or put in through the double-layer protection door (110).
5. A refrigerated container sterilized by irradiation with a source of cobalt as claimed in claim 4 wherein: one end of the double-layer protective door (110) is attached to the side wall of the box body (300), a supporting plate is arranged on the box body (300) along the inner wall inwards, the supporting plate is connected with the end portion of the partition plate, the isolation net (160) is connected between the end portion of the supporting plate and the inner wall of the box body (300), and the other end of the double-layer protective door (110) is attached to the plate surface of the supporting plate.
6. A refrigerated container sterilized by irradiation from a source of cobalt as claimed in claim 5 wherein: one end of the guide rail is provided with a limiting device (130), and damping springs (140) are respectively arranged between the upper side and the lower side of the limiting device (130) and the side wall of the box body (300) and the plate surface of the supporting plate.
7. A refrigerated container sterilized by irradiation from a cobalt source as claimed in claim 1 wherein: the cobalt source storage device (120) adopts a cylindrical shell, the lead protection layers (124) are arranged between the cobalt source (123) and the shell in a stacking mode, each lead protection layer (124) can rotate around the cobalt source (123), a notch is formed in each lead protection layer (124), and when the notches of all the lead protection layers (124) are opposite to the window in the shell, the cobalt source (123) emits irradiation rays.
8. A refrigerated container sterilized by irradiation from a cobalt source as claimed in claim 7 wherein: the window of the shell is provided with a lead baffle which can slide along the axial direction to open and close, and a limiting structure is arranged in the sliding direction of the lead baffle.
9. A refrigerated container sterilized by irradiation from a cobalt source as claimed in claim 7 wherein: and two ends of the shell are respectively arranged on the guide rail through fixing devices.
10. A refrigerated container sterilized by irradiation from a cobalt source as claimed in claim 1 wherein: the air inlet duct (240) and the air outlet duct (250) both adopt labyrinth type ducts.
CN202110910615.8A 2021-08-09 2021-08-09 Refrigerated container with cobalt source irradiation disinfection Active CN113720068B (en)

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CN202110910615.8A CN113720068B (en) 2021-08-09 2021-08-09 Refrigerated container with cobalt source irradiation disinfection

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Application Number Priority Date Filing Date Title
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