TWM615686U - Photocatalyst reaction device and air purification system - Google Patents

Abstract

A photocatalyst reaction device is arranged in an airflow chamber to form an air purification system. The photocatalyst reaction device includes a main body with an airflow inlet and a closed end, an internal cavity arranged in the main body, and a light source arranged in the internal cavity , Wherein the side walls of the internal cavity and the main body are made of mesh material and coated with a photocatalyst material layer, and a reaction chamber is defined between the internal cavity and the main body, and the reaction chamber is filled with A plurality of particulate objects, and the surface of such particulate objects is coated with a layer of photocatalyst material, the airflow will pass through the side wall of the internal cavity into the reaction chamber, and then flow into the airflow chamber to the air outlet through the reaction chamber, thereby increasing The collision probability between the airflow and the photocatalyst material layer excited by the light source improves the air purification effect.

Description

Photocatalyst reaction device and air purification system

This creation is about a photocatalyst reaction device, especially a device that can effectively increase the probability of airflow colliding with the photocatalyst and improve the purification effect.

Ultraviolet rays have a good sterilization and disinfection effect, and ultraviolet disinfection lamps have been widely used at present. They are the best method for disinfection and sterilization of infectious viruses. Photocataylst is a catalyst that uses light energy to carry out a catalytic reaction. First, the photocatalyst is coated or sprayed on the surface of the object to form a thin film, which can activate the oxidation or reduction of the foreign substances attached to the surface of the object through the light energy, so as to achieve the purpose of decontamination, sterilization, antibacterial or clean the surface of the object.

The purpose of this creation is to provide a photocatalyst reaction device, especially a device that can effectively increase the probability of airflow colliding with the photocatalyst and improve the purification effect.

According to the purpose of this creation, a photocatalyst reaction device is provided, which includes a main body having an airflow inlet and a closed end opposite to the airflow inlet, an internal cavity disposed in the main body, and a light source disposed in the internal cavity, wherein the The side walls of the inner cavity and the main body are made of mesh material, and a reaction chamber is defined between the inner cavity and the main body. The reaction chamber is filled with a plurality of particles. The sidewall surface, the sidewall surface of the main body and the surface of the particulate objects are all coated with a photocatalyst material layer, and the photocatalyst material layer is titanium dioxide, zinc oxide or tungsten oxide.

Preferably, the wavelength of the light source is not greater than 390 nm.

Preferably, the particulate matter system is made of silicon dioxide or metal oxide, and the particulate matter is unevenly distributed in the reaction chamber.

This creation also provides an air purification system, which has an airflow chamber and a photocatalyst reaction device. The photocatalyst reaction device is arranged in the airflow chamber. The airflow chamber has an air inlet and an air outlet. The outer diameter of an air inlet of the photocatalyst reaction device is equal.

In order to clearly illustrate the specific implementation, structure, and achieved effects of this creation, examples are provided and illustrated in conjunction with the drawings as follows:

Please refer to FIG. 1, the arrow direction shown in the figure is the air flow direction. FIG. 1 shows a photocatalyst reaction device, including a main body 11 with an air inlet and a closed end opposite to the air inlet, and an internal cavity 13 A light source 15 is disposed in the main body 11, and a light source 15 is disposed in the internal cavity 13, wherein the side walls of the internal cavity 13 and the side walls of the main body 11 are both made of mesh material to allow air flow to pass, the internal cavity 13 A reaction chamber is defined between the main body 11 and the reaction chamber. A plurality of granular objects 19 are filled in the reaction chamber. A photocatalyst material layer is arranged, and the photocatalyst material layer is titanium dioxide, zinc oxide or tungsten oxide.

Among them, the particulate objects 19 are made of silicon dioxide or metal oxide through which light can penetrate or reflect. The metal oxide can be aluminum oxide, zirconium oxide, or calcium oxide. In this embodiment, the particulate matter The bodies 19 are unevenly distributed in the reaction chamber.

In this embodiment, the light source 15 is an ultraviolet lamp with a wavelength not greater than 390 nm. The light source 15 irradiates the particulate objects 19 and the photocatalyst material layer coated on the sidewall surface of the internal cavity 13 and the sidewall surface of the main body 11. The photocatalyst material layer is oxidized or reduced, and when the fluid contacts the photocatalyst material layer, the effect of decontamination and sterilization can be achieved.

In this embodiment, the internal cavity 13 is configured to have a tapered space with a tapered cross-sectional area along the air flow direction (from the air inlet to the closed end), and the main body 11 has an internal space with a single cross-sectional area. The granular objects 19 can be arranged irregularly.

In this embodiment, the photocatalyst reaction device is arranged in an airflow chamber 20 to form an air purification system. The airflow chamber 20 has an air inlet and an air outlet. The outer diameter of the air inlet of the airflow chamber 20 is equal to An air inlet of the photocatalyst reaction device has the same outer diameter. The airflow enters the photocatalyst reaction device from the air inlet. Because one end of the photocatalyst reaction device is a closed end, the airflow will pass through the mesh side wall of the inner cavity 13 and enter the reaction chamber. After passing through the reaction chamber and passing through the particulate objects 10, pass through the mesh side wall of the main body 10 and then flow into the airflow chamber 20 to the air outlet. By this arrangement, the collision between the airflow and the photocatalyst material layer excited by the light source 15 can be increased. Probability to improve the effect of air purification.

11: main body 13: Internal cavity 15: light source 19: Granular objects 20: Airflow chamber

Figure 1 is a schematic diagram of this creation.

11: main body

13: Internal cavity

15: light source

19: Granular objects

20: Airflow chamber

Claims (9)

A photocatalyst reaction device, which contains: A main body with an air inlet and a closed end opposite to the fluid inlet; An internal cavity provided in the main body; and A light source is arranged in the internal cavity, wherein the side walls of the internal cavity and the main body are made of mesh material, and a reaction chamber is defined between the internal cavity and the main body, and the reaction cavity The interior is filled with a plurality of granular objects. The photocatalyst reaction device according to claim 1, wherein the side wall surface of the internal cavity, the side wall surface of the main body, and the surface of the particulate objects are all coated with a photocatalyst material layer. The photocatalyst reaction device according to claim 1, wherein the wavelength of the light source is not greater than 390 nm. The photocatalyst reaction device according to claim 2, wherein the photocatalyst material layer is titanium dioxide, zinc oxide or tungsten oxide. The photocatalyst reaction device according to claim 1, wherein the particulate matter system is made of silicon dioxide or metal oxide. The photocatalyst reaction device according to claim 5, wherein the particulate objects are unevenly distributed. The photocatalyst reaction device according to any one of claims 1 to 6, wherein the internal cavity 13 has a tapered space with a tapered cross-sectional area. An air purification system is provided with an airflow chamber and the photocatalyst reaction device according to claim 1, and the photocatalyst reaction device is arranged in the airflow chamber. The air purification system according to claim 8, wherein the airflow chamber has an air inlet and an air outlet, and an outer diameter of the air inlet is equal to an outer diameter of an airflow inlet of the photocatalyst reaction device.

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