CN102293240A - Short-wave ultraviolet-radiation sterilizing experimental device for sterilization of freshly cut fruits and vegetables - Google Patents

Abstract

The invention discloses a short-wave ultraviolet ray sterilization experimental device used for sterilization of fresh-cut fruits and vegetables. The sterilization experiment device comprises a closed box body, a holder and a power control device located in the box; the holder is connected to the side wall of the box and is connected to the top and the The bottom is uniformly separated; several short-wave ultraviolet lamps are arranged on the top of the box; the power control device is arranged outside the box. The sterilizing device provided by the invention is convenient and safe to use and low in price. It is not only suitable for scientific research to meet the UV-C sterilizing conditions of different foods, but also suitable for small food enterprises, and can be conveniently adjusted according to actual production conditions. Required strength and sterilization time; at the same time, UV-C reflective coating is used around the inside of the device, which not only effectively avoids the loss of UV-C to improve its utilization rate, but also prevents UV-C leakage and improves the safety of the device.

Description

A short-wave ultraviolet ray sterilization experimental device for sterilization of fresh-cut fruits and vegetables

technical field

The invention relates to a short-wave ultraviolet ray sterilization experimental device used for sterilization of fresh-cut fruits and vegetables.

Background technique

Fresh-cut fruits and vegetables are also known as minimally processed fruits and vegetables. According to the definition of the International Fresh-cut Products Association (IFPA), any fruit or vegetable or a mixture thereof that has changed in shape but still remains fresh is a fresh-cut product. With the development of my country's economy and the improvement of people's living standards, fresh-cut fruits and vegetables are becoming more and more popular among consumers. Fresh-cut fruits and vegetables are very susceptible to microbial infection due to the artificial destruction of the skin of the fruits and vegetables and the segmentation, which greatly affects the shelf life of the products. Therefore, sterilization is an important process in the processing and storage of fresh-cut fruits and vegetables. At present, the sterilization of fresh-cut fruits and vegetables mainly includes chemical sterilization technology and physical sterilization technology. Among them, chemical sterilization technology has been affected by consumers' concerns about health; physical sterilization technology has gradually received attention, and UV-C (short-wave ultraviolet) sterilization is one of them.

Devices related to UV-C sterilization in existing patents include: a drinking water purifier with short-wave ultraviolet disinfection device and descaling function (application number: 96204038.X) and a device for disinfecting water composed of UV-C gas discharge lamps The device is mainly used for drinking water purification; while the patented miniature ultraviolet treatment machine (application number: 90107751.8), low-temperature ultraviolet treatment device (application number: 95101995.3), desktop UV cold light gynecological treatment instrument (application number: 200520128058.0), ultra- High-frequency ultraviolet therapeutic apparatus (application number: 98233135.5) and burn therapeutic apparatus (95102232.6) all belong to medical equipment; a kind of ultraviolet (UV) automobile air sterilization purifier (public number: CN102018988A) and automobile ultraviolet germicidal lamp (application number: 03231080.3) is an ultraviolet sterilizing device for automobile air sterilization; a vertical display cabinet that can effectively sterilize (application number: 03269002.9) is equipped with UV light at the junction of the rear plate and the top plate in the air duct of the vertical display cabinet. -C Germicidal lamp device, which can not only sterilize, but also prevent the temperature of stored food from rising.

It can be seen from the above disclosed patents that there is still a lack of UV-C sterilization devices for fresh-cut fruits and vegetables. In addition, the application of UV-C to fresh-cut fruits and vegetables is still in the research stage, so it is necessary to develop corresponding sterilization devices for research and use by scientific research institutes.

Contents of the invention

The purpose of the present invention is to provide a short-wave ultraviolet ray sterilization experimental device for sterilization of fresh-cut fruits and vegetables, which can solve the main problem affecting the shelf life of fresh-cut fruits and vegetables in the process of processing and storage-microbial infestation, and can effectively kill surface microorganisms , a physical sterilization device that delays product decay, and is mainly used for scientific research experiments.

A kind of short-wave ultraviolet ray sterilizing experimental device used for the sterilization of fresh-cut fruits and vegetables provided by the present invention comprises a closed box body, a holder and a power control device arranged in the box; the holder and the box body The side wall is connected with the top and the bottom of the box and there is a gap; the top of the box is provided with several short-wave ultraviolet lamps; the power control device is arranged outside the box.

In the above-mentioned short-wave ultraviolet ray sterilization experimental device, the holder is connected to the side wall of the box through a drawer slide, so that the holder can be moved in and out like a drawer, which is convenient for storing and taking out articles.

In the above-mentioned short-wave ultraviolet ray sterilization experimental device, the bracket can be arranged in parallel with the top and bottom of the box, so that it can be ensured that the articles to be sterilized are on a horizontal plane and subjected to the short-wave ultraviolet rays of the same intensity. The radiation of the lamp, so as to make the sterilization more fully.

In the above-mentioned short-wave ultraviolet sterilizing experimental device, the bottom of the box body can be provided with several short-wave ultraviolet lamps, so that the whole of the article to be sterilized can be subjected to the radiation of the short-wave ultraviolet lamp; The distance between the top and the bottom of the box can be equal, which can ensure that the whole of the article to be sterilized can be irradiated by the same intensity of the short-wave ultraviolet lamp, so that the sterilization is more sufficient.

In the above-mentioned short-wave ultraviolet sterilizing experimental device, the number and positions of the short-wave ultraviolet lamps arranged on the top and bottom of the box are corresponding, so that it can be ensured that the entirety of the article to be sterilized can be radiated by the same intensity of the short-wave ultraviolet lamp. Thereby making the sterilization more fully.

In the above-mentioned short-wave ultraviolet sterilizing experimental device, the power control device may include several groups of switches, and each group of switches controls several groups of short-wave ultraviolet lamps corresponding to the positions provided on the top and bottom of the box, so that in the experiment Control of irradiation intensity; each group of short-wave ultraviolet lamps may include at least two short-wave ultraviolet lamps.

In the above short-wave ultraviolet sterilizing experimental device, a time control device is provided outside the box; the time control device is connected to the short-wave ultraviolet lamp.

In the above-mentioned short-wave ultraviolet ray sterilization experimental device, the inner wall of the box is provided with a reflective coating, which can avoid the loss of UV rays and prevent the stimulation of UV-C light to the human body; the reflective coating can be an aluminum foil layer, reflective Glass or other reflective material.

In the above-mentioned short-wave ultraviolet ray sterilization experimental device, the holder can be a mesh structure, so that the lower part of the article to be sterilized can also be fully irradiated by UV rays; the material of the holder is polystyrene or polypropylene. , not only to avoid absorbing ultraviolet rays, but also to avoid toxicity to food.

The sterilizing device provided by the invention is convenient and safe to use and low in price. It is not only suitable for scientific research to meet the UV-C sterilization conditions of different foods, but also suitable for small food enterprises, and can be conveniently adjusted according to actual production conditions. The required strength and sterilization time; at the same time, the UV-C reflective coating is used around the inside of the device, which not only effectively avoids the loss of UV-C to improve its utilization rate, but also prevents UV-C leakage and improves the safety of the device.

Description of drawings

Fig. 1 is the front view of the short-wave ultraviolet ray sterilization experiment device of the present invention.

Fig. 2 is a top view of the short-wave ultraviolet ray sterilization experimental device of the present invention.

Fig. 3 is a side view of the short-wave ultraviolet ray sterilization experimental device of the present invention.

The marks in the figure are as follows: 1 cabinet, 2 rack, 3UV-C lamp, 4 power switch, 5 timer.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

The short-wave ultraviolet sterilizing experimental device provided by the present invention comprises airtight casing 1, holder 2, power switch 4 and timer 5; The top and bottom of casing 1 are all provided with 5 UV-C lamps 3 (short-wave ultraviolet lamp ), and the positions of the UV-C lamps 3 set on the top and bottom are corresponding, and its intensity can fully meet the needs of fresh-cut fruits and vegetables and general solid food sterilization experiments; the inside of the box 1 is all covered with aluminum foil layers, which can avoid the loss of UV rays And prevent UV-C light from stimulating the human body; the holder 2 is a mesh structure made of polystyrene material with a pore size of 5mm, which can avoid toxicity to food and make the bottom of the article to be sterilized fully exposed to short-wave radiation. The radiation of the ultraviolet lamp; the opposite two side walls of the holder 2 and the casing 1 are connected by means of a drawer slideway (not shown in the figure), so that the holder 2 can be moved in and out like a drawer, which is convenient Storing and taking out of articles; the rack 2 is set in parallel with the top and bottom of the box body 1, and the distance from the top and bottom of the box body 1 is equal to ensure that the upper and lower parts of the articles to be sterilized can be Be subjected to the radiation of the UV-C lamp of same intensity, thereby make sterilization more fully; Power switch 4 and timer 5 are all located at the outside of box body 1, and power switch 4 comprises 5 groups of switches (not shown in the figure), each Each group controls the upper and lower groups of UV-C lamps 3, and the number of UV-C lamps 3 used and the irradiation time are controlled by the power switch 4 and the timer 5 to meet the specific settings of the experimental parameters.

In the above-mentioned short-wave ultraviolet ray sterilization experimental device, the shape and size of the box body 1 can be adjusted according to the actual sterilization needs; the material of the holder 2 can also adopt other radiation-resistant materials, such as polypropylene; the holder 2 can also be passed Other flexible connection methods are connected to the side wall of the box body 1; the number of UV-C lamps 3 can be determined according to actual needs; the reflective coating set around the inside of the box body 1 can also be reflective glass or other reflective materials .

When using the above-mentioned short-wave ultraviolet ray sterilization experimental device, take out the holder 2, place the article to be sterilized on the holder 2, then move it to the cabinet 1, close the cabinet 1; then turn on the 5 through the power switch 4 Group UV-C lamp 3 to sterilize items by radiation; control the radiation time of UV-C lamp 3 through timer 5; when the predetermined radiation time is reached, turn off power switch 4, and then take out holder 2 for sterilization items.

Claims (10)

1. short wave ultraviolet sterilizing experimental device that is used for the fresh-cut fruit and vegetable sterilization is characterized in that: described sterilizing experimental device comprises airtight casing, is located at bracket and power control in the described casing; Described bracket be connected with the sidewall of described casing and and the top of described casing and bottom between be equipped with spacing; The top of described casing is provided with several shortwave uviol lamps; Described power control is located at outside the described casing.

2. sterilizing experimental device according to claim 1 is characterized in that: described bracket is connected by drawer runner with the sidewall of described casing.

3. sterilizing experimental device according to claim 1 and 2 is characterized in that: described bracket is provided with all parallel mode in bottom with the top with respect to described casing.

4. according to arbitrary described sterilizing experimental device among the claim 1-3, it is characterized in that: the bottom of described casing is provided with several shortwave uviol lamps.

5. sterilizing experimental device according to claim 4 is characterized in that: described bracket equates with the top of described casing and the spacing between the bottom.

6. according to claim 4 or 5 described sterilizing experimental devices, it is characterized in that: the quantity and the position of the shortwave uviol lamp that the top of described casing and bottom are provided with are all corresponding.

7. sterilizing experimental device according to claim 6 is characterized in that: described power control comprises some groups of switches, and every group of described switch controlled the top of described casing and the corresponding some groups of shortwave uviol lamps in position that the bottom is provided with; Every group of described shortwave uviol lamp comprises at least 2 shortwave uviol lamps.

8. according to arbitrary described sterilizing experimental device among the claim 1-7, it is characterized in that: the free control device of described casing peripheral hardware; Described time-controlling arrangement is connected with described shortwave uviol lamp.

9. according to arbitrary described sterilizing experimental device among the claim 1-8, it is characterized in that: the inwall of described casing is provided with reflectance coating; Described reflectance coating is aluminium foil layer or rear reflector.

10. according to arbitrary described sterilizing experimental device among the claim 1-9, it is characterized in that: described bracket is a network structure; The material of described bracket is polystyrene or polypropylene.

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