CN212222487U

CN212222487U - Photocatalytic reactor

Info

Publication number: CN212222487U
Application number: CN202020547148.8U
Authority: CN
Inventors: 张志杨; 石春燕; 高卫民; 程寒飞
Original assignee: Huatian Engineering and Technology Corp MCC
Current assignee: Huatian Engineering and Technology Corp MCC
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-12-25
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a photocatalytic reactor. Comprises a hollow box body with a water inlet and a water outlet; more than one photocatalytic unit is detachably connected in series in the box body between the water inlet and the water outlet; the photocatalysis unit comprises a frame body, and a lamp tube and a photocatalysis metal net are arranged on the frame body along the water flow direction. The lamp tube and the plane porous metal net are longitudinally arranged at equal intervals, so that the catalyst can be irradiated by light to the maximum extent, the utilization efficiency of the light source and the catalyst is effectively exerted, the photocatalytic reaction efficiency is improved, the catalyst and the light source are convenient to replace, the operation cost is saved, and in addition, the reactor can be used for photocatalytic degradation of organic pollutants in sewage and sterilization and disinfection of water.

Description

Photocatalytic reactor

Technical Field

The utility model relates to a photocatalytic reactor, which can be used for photocatalytic degradation of organic pollutants in sewage and sterilization and disinfection of water.

Background

The traditional water treatment methods such as a membrane separation method, an adsorption method, a biological method and the like cannot effectively eliminate various pollutants in a water body to enable the pollutants to reach the wastewater discharge standard, so that the new requirements of sewage treatment cannot be met, and the wastewater treatment is seriously challenged. The photocatalytic oxidation is a green pollution-free technology, becomes a new technology with great application prospect in the field of advanced sewage treatment, has the advantages of mild reaction conditions, simple reaction equipment, small secondary pollution, easy operation control, easy obtainment of catalytic materials, low operation cost, capability of being almost used for the degradation and treatment of all kinds of pollutants, hopeful use of sunlight as a reaction light source and the like, and is known as an advanced oxidation technology for environmental purification with the greatest prospect in the 21 st century.

However, the application of the photocatalytic technology to wastewater treatment is still basically in the laboratory stage, the main reason is that the research and development of the photocatalytic reactor is laggard, and the existing photocatalytic reactor has the problems of small photocatalytic action area, low light energy utilization rate, poor mass transfer effect, difficult catalyst replacement, incapability of exerting the performance of the photocatalyst to the maximum extent and the like, so the industrial popularization and practical application of the photocatalytic reactor are severely limited.

Therefore, the design of the high-efficiency photocatalytic reactor has important value and promotion effect on the photocatalytic wastewater treatment technology from the laboratory to the industrial application.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a photocatalytic reactor, this kind of reactor enable the light sum catalyst and obtain maximum utilization to can effectively improve photocatalytic efficiency, and just can change catalyst and light source through changing metal mesh and fluorescent tube, convenient operation has practiced thrift use cost.

In order to achieve the above object, the present invention provides a photocatalytic reactor, comprising a hollow box body having a water inlet and a water outlet; more than one photocatalytic unit is detachably connected in series in the box body between the water inlet and the water outlet; the photocatalysis unit comprises a frame body, and a lamp tube and a photocatalysis metal net are arranged on the frame body along the water flow direction.

Preferably, the photocatalytic metal mesh comprises: the surface of the metal net is uniformly coated with the photocatalyst.

Preferably, an air inlet is arranged at one side of the box body; an air outlet is arranged at one side corresponding to the box body.

Preferably, the box body is a cuboid, and a square slot is vertically arranged in the box body in the direction vertical to the water flow; the frame body of the photocatalytic unit is a hollow square shell body matched with the square slot, and the shell body is sealed with the square slot in a water-tight mode; the upper part of the shell is provided with a lamp tube inserting hole; the photocatalytic metal net is arranged on the shell far away from the water inlet.

Preferably, the box body is made of stainless steel or organic glass, and the lamp tube is made of quartz glass.

Preferably, the distance between the planar porous metal mesh and the ultraviolet lamp tube is 10-30 cm.

Preferably, the light source required for the reaction is ultraviolet light, visible light or sunlight.

Preferably, the gas required for the reaction may be other commonly used gases such as air, oxygen and ozone.

Preferably, the photocatalytic reaction time is 0-24 h.

The beneficial effects of the utility model are that, the fluorescent tube makes the catalyst can be the biggest receive shining of light with the vertical equidistance interval arrangement mode of plane porous metal mesh, effectively exerts the utilization efficiency of light source and catalyst, improves photocatalytic reaction efficiency, and the change of catalyst and light source is comparatively convenient, has practiced thrift operating cost, and in addition, this kind of reactor can not only be used for the photocatalytic degradation of organic pollutant in the sewage, can also be used for the disinfection of disinfecting of water.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a photocatalytic reactor according to the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

In the figure 1, 1 is a box body, 2 is a lamp tube, 3 is a plane porous metal net coated with a catalyst, 4 is a water inlet, 5 is a water outlet, 6 is a gas inlet, and 7 is a gas outlet.

Detailed Description

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Please refer to fig. 1 and 2, the utility model provides a photocatalytic reactor, including box 1, the box outside is equipped with water inlet 4 and delivery port 5, air inlet 6 and gas outlet 7, and the inside series connection of box is provided with 4 sets of photocatalytic unit, and every photocatalytic unit of group includes the support body, installs fluorescent tube 2 and surface coating on the support body have the plane porous metal mesh 3 of photocatalyst, and the fluorescent tube is vertical equidistance interval arrangement with the metal mesh.

The utility model provides a pair of photocatalytic reactor, the vertical equidistance interval arrangement mode of fluorescent tube and plane porous metal mesh makes the catalyst can be the at utmost receive shining of light, effectively exerts the utilization ratio of light source and catalyst, increases substantially photocatalytic reaction efficiency, and fluorescent tube and metal mesh can be smooth take out and insert from the box to be convenient for change catalyst and light source.

The specific use method comprises the following steps:

(1) and (5) debugging the photocatalytic reactor and turning on a light source.

(2) The water outlet is closed, the water inlet is opened, and sewage enters the reactor from the water inlet.

(3) The gas inlet and the gas outlet are opened, and the reaction gas is continuously blown into the reactor from the gas inlet.

(4) And after the reaction is finished, the light source is turned off, the gas blowing is stopped, and the treated water is discharged from the water outlet.

(5) If the catalyst and the light source need to be replaced, the metal mesh and the lamp tube are taken out and put into a new metal mesh and a new lamp tube with the catalyst coated on the surfaces.

The utility model discloses a photocatalytic reactor's advantage lies in:

(1) simple structure and convenient operation.

(2) The lamp tubes and the columnar metal net are longitudinally arranged at equal intervals, the catalyst can be irradiated by light to the maximum extent, and the light can be utilized to the maximum extent, so that the photocatalysis efficiency can be effectively improved.

(3) The catalyst and the light source are convenient to replace, and the operation cost is greatly saved.

(4) The reactor can be used for photocatalytic degradation of organic pollutants in sewage and can also be used for sterilization and disinfection of water bodies.

The above description is only the preferred embodiment and operation method of the present invention, and is not intended to limit the present invention, it should be pointed out that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention without departing from the principles of the present invention.

Claims

1. A photocatalytic reactor, characterized by: comprises a hollow box body with a water inlet and a water outlet; more than one photocatalytic unit is detachably connected in series in the box body between the water inlet and the water outlet; the photocatalysis unit comprises a frame body, and a lamp tube and a photocatalysis metal net are arranged on the frame body along the water flow direction.

2. The photocatalytic reactor of claim 1, characterized in that: the photocatalytic metal mesh includes: the surface of the metal net is uniformly coated with the photocatalyst.

3. The photocatalytic reactor of claim 1, characterized in that: an air inlet is arranged on one side of the box body; an air outlet is arranged at one side corresponding to the box body.

4. The photocatalytic reactor of claim 1, characterized in that: the box body is a cuboid, and a square slot is vertically arranged in the box body in the direction vertical to the water flow; the frame body of the photocatalytic unit is a hollow square shell body matched with the square slot, and the shell body is sealed with the square slot in a water-tight mode; the upper part of the shell is provided with a lamp tube inserting hole; the photocatalytic metal net is arranged on the shell far away from the water inlet.

5. A photocatalytic reactor as set forth in claim 2 wherein: the distance between the planar porous metal net and the ultraviolet lamp tube is 10-30 cm.