阅读说明：本技术 多波段多途径互补紫外杀菌装置 (Multiband multi-path complementary ultraviolet sterilization device ) 是由 任昌烈 卞文静 谢自力 于 2021-09-08 设计创作，主要内容包括：本发明公开了一种多波段多途径互补紫外杀菌装置,包括：壳体、风机、光触媒模块；第一紫外光源,设置在壳体内侧,波长200-230nm；第二紫外光源,设置在壳体内侧,波长250-280nm；第三紫外光源,设置在所述壳体内侧,其位置能照射到光触媒模块,波长350-400nm；人体感应模块,设置在壳体外侧；智能控制模块,在接收到所述人体感应模块的感应信号后,控制第一紫外光源开启,同时关闭第二紫外光源及第三紫外光源。本发明彻底解决当前紫外杀菌必须人机分离的现状,同时又解决短波紫外效率低,寿命短的问题。使用该装置可以时时不间断杀菌,且始终处于安全状态。做到既安全又能有效杀菌且延长了紫外光源使用寿命。(The invention discloses a multiband multi-path complementary ultraviolet sterilization device, which comprises: the device comprises a shell, a fan and a photocatalyst module; the first ultraviolet light source is arranged at the inner side of the shell and has the wavelength of 200-230 nm; the second ultraviolet light source is arranged at the inner side of the shell, and the wavelength is 250-280 nm; the third ultraviolet light source is arranged on the inner side of the shell and can irradiate the photocatalyst module at the position with the wavelength of 350-400 nm; the human body induction module is arranged on the outer side of the shell; and the intelligent control module controls the first ultraviolet light source to be turned on and simultaneously turns off the second ultraviolet light source and the third ultraviolet light source after receiving the sensing signal of the human body sensing module. The invention thoroughly solves the current situation that the current ultraviolet sterilization needs man-machine separation, and simultaneously solves the problems of low efficiency and short service life of short-wave ultraviolet. The device can be used for continuously sterilizing at all times and is always in a safe state. The ultraviolet light source is safe and can effectively sterilize, and the service life of the ultraviolet light source is prolonged.)

1. A multi-band multi-pathway complementary ultraviolet sterilization device, comprising:

the air conditioner comprises a shell, wherein an air inlet and an air outlet are formed in the shell;

the fan is arranged in the shell and corresponds to the air inlet;

the photocatalyst module is arranged in the position, close to the air outlet, in the shell and is positioned on the downstream side of the fan in terms of an air flow path;

the first ultraviolet light source is arranged on the inner side of the shell, and the radiation wavelength range of the first ultraviolet light source is within 200-230 nm;

the second ultraviolet light source is arranged on the inner side of the shell, and the radiation wavelength range of the second ultraviolet light source is within 250-280 nm;

the third ultraviolet light source is arranged on the inner side of the shell, the position of the third ultraviolet light source is based on the fact that the third ultraviolet light source can irradiate the photocatalyst module, and the radiation wavelength range of the third ultraviolet light source is within 350-400 nm;

the human body induction module is arranged on the outer side of the shell;

and the intelligent control module controls the first ultraviolet light source to be turned on and simultaneously turns off the second ultraviolet light source and the third ultraviolet light source after receiving the sensing signal of the human body sensing module.

2. The multi-band multi-pathway complementary ultraviolet sterilization device of claim 1, wherein: the first ultraviolet light source is an LED ultraviolet light source or a high-pressure mercury lamp ultraviolet light source, the second ultraviolet light source is an LED ultraviolet light source or a high-pressure mercury lamp ultraviolet light source, and the third ultraviolet light source is an LED ultraviolet light source or a high-pressure mercury lamp ultraviolet light source.

3. The multi-band multi-pathway complementary ultraviolet sterilization device of claim 1, wherein: when the intelligent control module does not receive the sensing signal of the human body sensing module, the intelligent control module controls the second ultraviolet light source and the third ultraviolet light source to be started, and meanwhile, the first ultraviolet light source is closed.

4. The multi-band multi-pathway complementary ultraviolet sterilization device of claim 1, wherein: the shell is made of metal or ultraviolet-resistant plastic and is cubic or cylindrical.

Technical Field

The invention relates to a multiband multi-path complementary ultraviolet sterilization device.

Background

Air is an important propagation path of microorganisms such as bacteria, viruses and the like, and how to effectively inactivate pathogenic microorganisms in the air in time is an important link for controlling disease propagation. The current methods for air sterilization are mainly: ultraviolet irradiation, plasma, filtration, gas sterilization, spray sterilization, and the like. Ultraviolet irradiation in the above method has received much attention because it has no harmful residue, is broad-spectrum bactericidal, has no drug resistance, and can sterilize in a short time.

At present, the two ultraviolet sources can effectively kill bacteria by using a universal LED ultraviolet source with the ultraviolet sterilization wavelength of 275nm or a mercury lamp with the ultraviolet sterilization wavelength of 253.7nm, but the two ultraviolet sources can damage skin cells of a human body by radiating the human body with an overdose of ultraviolet, so that the skin is red, swollen, painful, itchy and desquamated, even serious patients cause canceration, and the conjunctiva and the cornea of eyes can be also inflamed. In order to avoid harm to human bodies, the current practice of the industry is to install a human body sensor, and when a person is near an ultraviolet light source, the ultraviolet sterilization device stops working so as to reduce the harm to the human bodies. However, the scheme has the limitation of sterilization, and people and machines are required to be separated, so that the people and the machines cannot be in the same space.

In 2018, professor dawei brenne (David Brenner) of nuclear medicine research center at public health institute of colombia university found that: the 222 nanometer ultraviolet ray is harmless to human body and can efficiently disinfect, and related papers are published in journal of Nature. The 222nm short wavelength ultraviolet light can not penetrate the skin and eyes and is harmless to human bodies, so that the ultraviolet light can be used for sterilization and disinfection when people are present. However, the 222nm short wavelength ultraviolet light has the problems of low luminous efficiency and short service life.

Disclosure of Invention

The invention aims to provide a multiband multi-path complementary ultraviolet sterilization device, which thoroughly solves the current situation that the current ultraviolet sterilization needs man-machine separation, and simultaneously solves the problems of low efficiency and short service life of short-wave ultraviolet. The device can be used for continuously sterilizing at all times and is always in a safe state. The ultraviolet light source is safe and can effectively sterilize, and the service life of the ultraviolet light source is prolonged.

The technical scheme adopted by the invention is as follows: a multi-band multi-pathway complementary ultraviolet sterilization device, comprising:

the air conditioner comprises a shell, wherein an air inlet and an air outlet are formed in the shell;

the fan is arranged in the shell and corresponds to the air inlet;

the photocatalyst module is arranged in the position, close to the air outlet, in the shell and is positioned on the downstream side of the fan in terms of an air flow path;

the first ultraviolet light source is arranged on the inner side of the shell, and the radiation wavelength range of the first ultraviolet light source is within 200-230 nm;

the second ultraviolet light source is arranged on the inner side of the shell, and the radiation wavelength range of the second ultraviolet light source is within 250-280 nm;

the third ultraviolet light source is arranged on the inner side of the shell, the position of the third ultraviolet light source is based on the fact that the third ultraviolet light source can irradiate the photocatalyst module, and the radiation wavelength range of the third ultraviolet light source is within 350-400 nm;

the human body induction module is arranged on the outer side of the shell;

and the intelligent control module controls the first ultraviolet light source to be turned on and simultaneously turns off the second ultraviolet light source and the third ultraviolet light source after receiving the sensing signal of the human body sensing module. The intelligent control module can be electrically connected with the human body induction module, the first ultraviolet light source, the second ultraviolet light source and the third ultraviolet light source; or may be connected not directly electrically, but by wireless signals.

Preferably, the first ultraviolet light source is an LED ultraviolet light source or a high-pressure mercury lamp ultraviolet light source, the second ultraviolet light source is an LED ultraviolet light source or a high-pressure mercury lamp ultraviolet light source, and the third ultraviolet light source is an LED ultraviolet light source or a high-pressure mercury lamp ultraviolet light source.

Preferably, when the intelligent control module does not receive the sensing signal of the human body sensing module, the intelligent control module controls the second ultraviolet light source and the third ultraviolet light source to be turned on, and meanwhile, the first ultraviolet light source is turned off, so that the service life of the first ultraviolet light source is short, the first ultraviolet light source is used as little as possible, and the service life is prolonged.

Preferably, the shell is made of metal or ultraviolet-resistant plastic and is in the shape of a cube or a column, wherein the ultraviolet-resistant plastic can be prepared and characterized by reference to the novel PMMA ultraviolet-resistant composite material (Zhang Baikai, Wangwei, Jiangshai, et al [ J ] plastics industry, 2018,46(12): 144-.

The working principle and mode of the invention are as follows: the device is powered on, the intelligent control module is started, the fan operates normally, when no one approaches the device, the air at the air inlet is sterilized by adopting an internal second ultraviolet light source, the sterilized air is blown out by the fan, meanwhile, the third ultraviolet light source irradiates a photocatalyst, the generated chemical substances are blown out by the air outlet of the fan, the chemical substances can oxidize organic pollutants and organic matters in bacteria, the air in the space is sterilized, and at the moment, the first ultraviolet light source is in an off state; when someone is close to the ultraviolet sterilization device, the human body sensing module senses that human body sensing signals can be output to the intelligent control module, the intelligent control module can control the second ultraviolet light source to extinguish, the third ultraviolet light source extinguishes, the fan continues to work, the first ultraviolet light source is simultaneously opened, air at the air inlet continues to be sterilized, and the sterilized air is blown out by the fan. When the human body leaves again, the state is that no person approaches, and the sterilization is carried out repeatedly and constantly.

The most beneficial effects of the invention are as follows: the ultraviolet sterilization can be used, the human health can not be hurt by ultraviolet, and the industrial problem of ultraviolet sterilization man-machine separation is solved. Meanwhile, the problems of low efficiency and short service life of short-wave ultraviolet are solved. The ultraviolet sterilization man-machine co-location is realized, the sterilization is ceaselessly performed in real time, and the service life of the short-wave ultraviolet light source is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of the multiband multi-path complementary ultraviolet sterilization device of the present invention.

Fig. 2 is a schematic block diagram of the multiband multi-path complementary ultraviolet sterilization apparatus of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example 1

The multiband multi-path complementary ultraviolet sterilization apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the multi-band multi-path complementary ultraviolet sterilization device comprises: a shell 10, wherein air inlets are arranged on the periphery of the shell, and an air outlet is arranged on the top of the shell; the fan 20 is arranged at the bottom of the shell; a first ultraviolet light source 301 with a radiation wavelength of 222nm and a light source type of LED; a second ultraviolet light source 302 with a radiation wavelength of 275nm, the light source type being an LED; a third ultraviolet light source 303 with a radiation wavelength of 360nm and an LED type, 301 and 302 are arranged around the inner wall of the housing 10 at intervals, and near the air inlet, 303 and the photocatalyst 40 are arranged on the inner wall of the housing 10 and near the air outlet; the intelligent control module is arranged at the upper part of the shell 10, so that the operation position is easy; and human body sensing modules 60 disposed at upper and lower portions of an outer wall of the housing 10.

The functional block diagram of this embodiment is shown in fig. 2, the band multi-path complementary ultraviolet sterilization device is powered on, the intelligent control module is turned on, the human body sensing module 60 does not sense a human body, and a signal that does not sense a human body is transmitted to the intelligent control module 50, then the intelligent control module 50 will control the fan 20 to normally operate, the third ultraviolet light source 303 is normally turned on, the photocatalyst module 40 is irradiated with light, meanwhile, the second ultraviolet light source is normally turned on, air at the air inlet is sterilized, the sterilized air and the air after the photocatalyst reaction are mixed by the fan, and the air is sent out by the fan through the air outlet; when the human body induction module 60 induces a human body, a human body induction signal is transmitted to the intelligent control module 50, the intelligent control module 50 controls the fan 20 to normally operate, the third ultraviolet light source 303 is turned off, the photocatalyst module 40 is stopped being irradiated, meanwhile, the second ultraviolet light source is turned off, the first ultraviolet light source is turned on, air at the air inlet is sterilized, and the sterilized air is sent out through the air outlet by the fan; the intelligent control module also has the function of controlling the on-off of the power supply of the whole device.