CN212954412U - Photodynamic liquid sterilization system - Google Patents
Photodynamic liquid sterilization system Download PDFInfo
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- CN212954412U CN212954412U CN202021441716.2U CN202021441716U CN212954412U CN 212954412 U CN212954412 U CN 212954412U CN 202021441716 U CN202021441716 U CN 202021441716U CN 212954412 U CN212954412 U CN 212954412U
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Abstract
本实用新型属于光动力杀菌技术领域，具体涉及一种光动力液体杀菌系统。包括外壳，外壳内分为上下两部分；下部为水箱，其前端设有第一出水口，下端设有第二出水口，后端设有进水口；第一出水口、第二出水口和进水口处设有阀门；水箱侧壁为不透光结构，顶壁和底壁为透光结构，底壁下方通过连接架固定连接紫外灯，紫外灯通过线路与电源及开关相连；顶壁为透光板，其上方设有LED光源板；水箱整体固定在支架上；上部为光动力驱动室，驱动LED光源板。本装置用LED灯光作为激发光，通过水泵带动，对液体进行大体积的循环照射，并且在装置底部安装有紫外线灯来辅助照射，实现了对水体的大体积净化处理，提高了光动力杀菌处理效果。
The utility model belongs to the technical field of photodynamic sterilization, in particular to a photodynamic liquid sterilization system. It includes an outer shell, which is divided into upper and lower parts; the lower part is a water tank, the front end is provided with a first water outlet, the lower end is provided with a second water outlet, and the rear end is provided with a water inlet; the first water outlet, the second water outlet and the inlet There is a valve at the water outlet; the side wall of the water tank is of an opaque structure, the top wall and the bottom wall are of a light-transmitting structure, and the bottom wall is fixedly connected to the ultraviolet lamp through a connecting frame, and the ultraviolet lamp is connected to the power supply and switch through a line; the top wall is a transparent structure. The light board is provided with an LED light source board above it; the water tank is integrally fixed on the bracket; the upper part is a photodynamic driving chamber, which drives the LED light source board. The device uses LED light as the excitation light and is driven by a water pump to irradiate the liquid with a large volume of circulation, and an ultraviolet lamp is installed at the bottom of the device to assist the irradiation, which realizes the large-volume purification treatment of the water body and improves the photodynamic sterilization treatment. Effect.
Description
The technical field is as follows:
the utility model belongs to the technical field of the photodynamic sterilization, concretely relates to photodynamic liquid sterilization system.
Background art:
photodynamic sterilization (PDT) is a new method for selectively inactivating malignant tumor cells and pathogenic microorganisms and viruses. The main principle of the method is that the nontoxic photosensitizer is excited by utilizing the laser irradiation with specific wavelength, and the excited photosensitizer transfers energy to the surrounding oxygen to generate singlet oxygen with strong activity. Singlet oxygen is an active oxygen substance with strong oxidation effect, and can destroy the macromolecular structure of cells to cause cell damage and cell death, thereby achieving the purpose of killing malignant tumor cells and pathogenic microorganisms. The developed photodynamic sterilization method using visible light as an excitation light source is not only used in the medical field but also used for inactivating bacteria and viruses, and is rarely applied to the food industry.
When filter feeding animals such as oysters filter feeding algae food, the digestive tract can enrich various microorganisms in living water areas, and the microorganisms can shorten the shelf life and cause the risk of causing food-borne diseases to people eating oysters and stabbing bodies. The scholars study the influence of photodynamic treatment on the sterilization effect of the fresh oysters by taking curcumin as a photosensitizer and taking a novel LED lamp as a light source. The results show that the photodynamic can kill the microorganisms (including norovirus, vibrio parahaemolyticus, escherichia coli, common aquatic product putrefying bacteria and the like) in the oysters with broad spectrum and high efficiency, and cannot influence the sense and the flavor of the oysters. Researches find that the LED blue light source with the wavelength range of 420-480nm has higher killing effect on total bacteria in the oysters under the condition of adding the photosensitizer (curcumin). In addition, researches show that the photodynamic sterilization technology has good inactivation effect on microorganisms in tap water, seawater, barreled water and mineral water, and prove that the photodynamic sterilization has a technical basis for large-scale implementation.
The Chinese patent of publication No. CN110338329A discloses a photodynamic sterilization system, which optimizes an LED light source, adopts intelligent LED light source equipment which can be adjusted according to a photosensitizer, has small equipment and more adjustable devices, and comprises power, illumination time, height of an object placing plate, photodynamic temperature and the like. However, this device is inefficient due to its small size and cannot perform sterilization treatment of a large number of samples, such as mineral water, wine, orange juice, etc., and seawater for treating temporarily-cultured aquatic products.
The utility model has the following contents:
the to-be-solved technical problem of the utility model is that the volume of the existing photodynamic sterilization system is smaller, the efficiency is lower, the bulk treatment of the sample can not be realized, and the application range is limited.
In order to solve the problem, the utility model provides a photodynamic liquid sterilization system uses LED light as the exciting light, drives through the water pump, and the circulation that carries out the bulky to the liquid that adds the photosensitizer shines for the purification treatment to the water to install ultraviolet lamp and come the auxiliary irradiation bottom the device, the device has realized the bulky purification treatment to the water, and then purifies aquatic products, has improved the photodynamic sterilization treatment effect.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a photodynamic liquid sterilization system comprises a shell, wherein the shell is internally divided into an upper part and a lower part;
wherein, the lower part is a water tank, the front end of the water tank is provided with a first water outlet, the lower end of the water tank is provided with a second water outlet, and the rear end of the water tank is provided with a water inlet; the water inlet is connected with a small water pump, the water pump is connected with a water body to be purified, and the water body is held by a large-capacity vessel; valves are arranged at the first water outlet, the second water outlet and the water inlet and are used for controlling the height of the water level in the box body; the side wall of the water tank is of a light-tight structure, the top wall and the bottom wall are of light-tight structures, the lower part of the bottom wall is fixedly connected with an ultraviolet lamp through a connecting frame, the ultraviolet lamp is connected with a power supply and a switch through a circuit, and the connecting frame is used for irradiating a water body from the lower part of the water tank, such as but not limited to a U-shaped T5T 8 lamp tube bracket of an electrical product company Limited in Shanba (China); the top wall is a light-transmitting plate, an LED light source plate is arranged above the top wall and used for isolating water vapor from an LED light source, and the LED light source irradiates the water tank through the light-transmitting plate; the water tank is integrally fixed on the bracket;
the upper part is a photodynamic driving chamber, the bottom of the photodynamic driving chamber is provided with an air exhaust channel, the bottom of the air exhaust channel is an LED light source plate, and the top of the air exhaust channel is provided with an LED light source control box and an LED heat dissipation fan; the LED light source control box is respectively connected with the LED light source plate and the power supply through circuits, the voltage of the LED light source control box is 220V/50Hz, the LED light source control box controls the power and the sterilization time of the light source and adjusts the intensity of the light source to control the sterilization effect, and the side surface of the LED light source control box is provided with a heat dissipation port which is communicated with the outside; the LED heat dissipation fan is positioned behind the LED light source control box, an air inlet communicated with the outside is formed in the upper part of the LED heat dissipation fan, and the lower part of the LED heat dissipation fan is communicated with the air exhaust channel through a channel; the fan blows air into the surface of the LED light source plate, and heat generated by the air is discharged through the air exhaust channel below the LED light source control box, so that the sterilization stability of the LED light source is ensured.
Furthermore, a flow recording device is installed at the position of the water inlet valve, so that the circulating water quantity is conveniently controlled.
Furthermore, the water tank is made of glass, so that the LED light source can conveniently penetrate through the water tank, the water tank is waterproof, a water outlet is formed in the bottom of the water tank, and the total volume of the water tank is 500mm x 400mm x 150 mm; the side walls were wrapped with black opaque tinfoil. The illumination intensity can be maintained, and the damage of LED light to human bodies can be prevented.
Furthermore, the support is a stainless steel four-angle frame with the height of 1 m.
Further, the LED light source plate and the top wall of the water tank are detachably connected through a buckling structure.
Further, the top wall and the bottom wall of the water tank are made of light-transmitting glass. The LED lamp is convenient for the LED light source to penetrate through and has a waterproof function.
Further, LED lamp area is 5 rows, and evenly distributed is in water tank roof below.
Furthermore, the LED lamp strip and the ultraviolet lamp are arranged in a crossed or vertical space. Can kill microorganisms in water in an all-round way.
Further, a control panel is arranged at the front end of the LED light source control box, a switch knob, a reset/pause knob, 5 LED light source toggle switch controls and a timer are arranged on the control panel, and the control panel is connected with a power supply and the LED light source board through a circuit; the start/close of the switch knob controller, the temporary setting and the start of the reset/pause knob control device, 5 LED light sources control the toggle switch to control and adjust the power of the light sources, and the timer flexibly controls the illumination time and records the sterilization time.
Furthermore, the photodynamic liquid sterilization system is also provided with an overcurrent protection device and an electric leakage protection device.
Further, the LED light source plate is composed of 240 LED light sources, the wavelength is 455nm, the light emitting angle is 120 degrees, the wavelength can be adjusted by replacing the LED lamp strip according to the optimal absorption wavelength of the photosensitizer, the total light emitting area of the LED light sources is 400 x 500mm, the total power is 240W, the single light effect is more than 110LM/W, and the rated voltage is 3V.
Further, the ultraviolet radiation sterilization power connected with the lower part of the water tank is 11W.
The utility model has the advantages that: the utility model discloses sterilization system adopts and carries out the method that bulky circulation shines with the water, has overcome in the above-mentioned patent small, is directed against the slower drawback of the large-scale treatment effeciency of water, simultaneously the utility model discloses in still be equipped with the sterilamp for it is more abundant to disinfect, has increased the rate of disinfecting.
Drawings
Fig. 1 is a front sectional view of the present invention;
fig. 2 is a side sectional view of the present invention.
In the figure, a shell 1, a water tank 2, a first water outlet 3, a second water outlet 4, a water inlet 5, black opaque tinfoil 6, an ultraviolet lamp 7, a support 8, an LED light source control box 9, an LED heat dissipation fan 10, an LED light source plate 11, a light transmission plate 12, a control panel 13, a heat dissipation port 14, a switch knob 15, a reset/pause knob 16, an LED light source toggle switch 17, a timer 18, an air inlet 19 and an air exhaust channel 20.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
a photodynamic liquid sterilization system comprises a shell 1, wherein the interior of the shell is divided into an upper part and a lower part;
wherein, the lower part is a water tank 2, the front end of the water tank is provided with a first water outlet 3, the lower end of the water tank is provided with a second water outlet 4, and the rear end of the water tank is provided with a water inlet 5; the water inlet is connected with a small water pump, the water pump is connected with a water body to be purified, and the water body is held by a large-capacity vessel; valves are arranged at the first water outlet 3, the second water outlet 4 and the water inlet 5 and are used for controlling the height of the water level in the box body; the side wall of the water tank is of a light-tight structure, the top wall and the bottom wall are of light-tight structures, the lower part of the bottom wall is fixedly connected with an ultraviolet lamp 7 through a connecting frame, the ultraviolet lamp 7 is connected with a power supply and a switch through a circuit, and the connecting frame is used for irradiating a water body from the lower part of the water tank, such as but not limited to a U-shaped T5T 8 lamp tube bracket of Shangba (China) electric appliance product limited company; the top wall is a light-transmitting plate 12, an LED light source plate 11 is arranged above the top wall to isolate water vapor from an LED light source, and the LED light source irradiates the water tank through the light-transmitting plate; the water tank 2 is integrally fixed on the bracket 8;
the upper part is a photodynamic driving chamber, the bottom of the photodynamic driving chamber is provided with an exhaust channel 20, the bottom of the exhaust channel 20 is an LED light source plate 11, and the top of the exhaust channel 20 is provided with an LED light source control box 9 and an LED heat dissipation fan 10; the LED light source control box 9 is respectively connected with the LED light source plate 11 and a power supply through circuits, the voltage of the LED light source control box is 220V/50Hz, the LED light source control box 9 controls the power and the sterilization time of a light source and adjusts the intensity of the light source to control the sterilization effect, and the side surface of the LED light source control box is provided with a heat dissipation port 14 which is communicated with the outside; the LED heat dissipation fan 10 is positioned behind the LED light source control box, an air inlet 19 communicated with the outside is arranged above the LED heat dissipation fan, and the lower part of the LED heat dissipation fan is communicated with an exhaust channel 20 through a channel; the fan blows air into the surface of the LED light source plate, and heat generated by the air is discharged through the air exhaust channel below the LED light source control box, so that the sterilization stability of the LED light source is ensured.
The water tank is made of glass, so that the LED light source can conveniently penetrate through the water tank, water can be prevented, a water outlet is formed in the bottom of the water tank, and the total volume of the water tank is 500mm x 400mm x 150 mm; the side walls are wrapped by black opaque tinfoil 6. The illumination intensity can be maintained, and the damage of LED light to human bodies can be prevented.
The top wall and the bottom wall of the water tank are made of light-transmitting glass. The LED lamp is convenient for the LED light source to penetrate through and has a waterproof function.
Example 2:
the front end of the LED light source control box 9 is provided with a control panel 13, the control panel is provided with a switch knob 15, a reset/ pause knob 16, 5 LED light source toggle switches 17 for control and a timer 18, and the control panel is connected with a power supply and the LED light source board 11 through a circuit; the start/close of the switch knob controller, the temporary setting and the start of the reset/pause knob control device, 5 LED light sources control the toggle switch to control and adjust the power of the light sources, and the timer flexibly controls the illumination time and records the sterilization time.
The rest is the same as in example 1.
Example 3:
the LED light source plate consists of 240 LED light sources, the wavelength is 455nm, the light emitting angle is 120 degrees, the wavelength can be adjusted by replacing an LED lamp belt according to the optimal absorption wavelength of the photosensitizer, the total light emitting area of the LED light sources is 400 x 500mm, the total power is 240W, the single light effect is greater than 110LM/W, and the rated voltage is 3V.
The ultraviolet radiation sterilization power connected with the lower part of the water tank is 11W.
The rest is the same as in example 1-2.
Example 4:
the LED lamp area is 5 rows, and evenly distributed is in water tank roof below.
The LED lamp strip and the ultraviolet lamp are arranged in a crossed or vertical space. Can kill microorganisms in water in an all-round way.
The rest is the same as in examples 1 to 3.
Example 5:
the bracket 8 is a stainless steel four-angle bracket with the height of 1 m.
The LED light source plate 11 is detachably connected with the top wall of the water tank through a buckling structure.
A flow recording device is arranged at the position of the water inlet valve, so that the circulating water quantity is convenient to control.
The photodynamic liquid sterilization system is also provided with an overcurrent protection device and an electric leakage protection device.
The rest is the same as in examples 1 to 4.
Example 6:
the photodynamic liquid sterilization cycle system of embodiments 1-5 is used for sterilization treatment, and comprises the following steps:
(1) adding a photosensitizer with required concentration into a water body to be purified, and fully mixing the photosensitizer in the water body;
(2) turning on a control switch, and adjusting the required power of the LED light source and the sterilization time on a control panel;
(3) opening a water pump to enable the water body to flow out of the vessel after the water tank is filled with the water body, completing a cycle through the water pump, or closing the water pump and a water tank valve to perform static irradiation sterilization after the water tank is filled with the water body;
(4) and after the set sterilization time is up, the LED light source knob is turned off, and water in the water tank is discharged to finish the sterilization effect.
The test of killing escherichia coli in colored liquid food by using photodynamic is carried out by taking three commercial liquid sterile foods such as wine, milk, orange juice and the like as practical application effects, in the test, a photodynamic treatment group is added with 10 mu M of photosensitizer curcumin, and an LED light source is used for irradiating 5.4J/cm2 light, and the results show that the killing rates of escherichia coli DH5 alpha after the photodynamic treatment are respectively 94.47 +/-1.51%, 50.96 +/-1.45% and 91.77 +/-0.72%, and except that the sterilization effect in the milk is slightly low, the other two sterilization effects are very obvious.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
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| CN202021441716.2U CN212954412U (en) | 2020-07-21 | 2020-07-21 | Photodynamic liquid sterilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114403334A (en) * | 2022-02-15 | 2022-04-29 | 吉林大学 | Method for cold sterilization of fruit juice by curcumin-mediated photodynamic technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114403334A (en) * | 2022-02-15 | 2022-04-29 | 吉林大学 | Method for cold sterilization of fruit juice by curcumin-mediated photodynamic technology |
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