CN212942238U

CN212942238U - Device for eliminating ozone based on microwave

Info

Publication number: CN212942238U
Application number: CN202021782731.3U
Authority: CN
Inventors: 马中发; 王露; 阮俞颖
Original assignee: Shaanxi Qinglang Wancheng Environmental Protection Technology Co Ltd
Current assignee: Shaanxi Qinglang Wancheng Environmental Protection Technology Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-13
Anticipated expiration: 2030-08-24

Abstract

The utility model provides a device based on microwave elimination ozone relates to ozone treatment technical field, include: the method comprises the following steps: the device comprises a reaction cavity, a microwave source, a feed inlet, an air inlet, a mixing cavity, a stirrer, a lamp tube, a bracket, a catalyst and an air outlet; wherein, the microwave source is arranged at the top of the reaction cavity; the lamp tube in the reaction cavity is fixed on the bracket; the stirrer is arranged in the mixing cavity; ozone enters the reaction cavity from the gas inlet, and treated gas is discharged from the gas outlet under the action of the reducing agent, the microwave source and the lamp tube. The utility model discloses effect based on microwave, reductant and electrodeless ultraviolet lamp is handled ozone and ozone, has realized that high-efficient decomposition, equipment structure are simple, the equipment energy consumption is low and can long-term steady operation to ozone.

Description

Device for eliminating ozone based on microwave

Technical Field

The utility model relates to an ozone treatment technical field particularly, relates to a device based on microwave elimination ozone.

Background

With the increase of urbanization speed, environmental pollution becomes serious, and especially water pollution and atmospheric pollution seriously harm human health. Studies have shown that the limiting concentration of acceptable ozone in humans is 260. mu.g/m in one hour³. At 320. mu.g/m³1h activity in ozone environment will cause cough, dyspnea and lung function decline. Ozone can also participate in the reaction of unsaturated fatty acid, amino and other proteins in organisms, so that people who directly contact high-concentration ozone for a long time have the problems of fatigue, cough, chest distress and pain, skin wrinkling, nausea and headache, accelerated pulse, memory deterioration, visual deterioration and the like.

In the prior art, the elimination of ozone mainly comprises: the activated carbon adsorption method, the thermal decomposition method, the electromagnetic wave radiation decomposition method, the catalytic decomposition method and the like have certain effects in the ozone elimination technology.

However, the prior art methods for eliminating ozone have problems of high cost, high energy consumption and applicability to low-concentration ozone, so that there is an urgent need for a method which has a low treatment cost, a high ozone decomposition rate and can be stably operated for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to eliminate the not enough of device of ozone in above-mentioned prior art, provide a device based on microwave elimination ozone to there is the problem that the cost expense is too high, the energy consumption is big, and only be applicable to low concentration ozone in the method of eliminating ozone in solving prior art.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

the embodiment of the utility model provides a device based on microwave elimination ozone, include: the device comprises a reaction cavity, a microwave source, a feed inlet, an air inlet, a mixing cavity, a stirrer, a lamp tube, a bracket, a catalyst and an air outlet;

wherein the microwave source is arranged at the top of the reaction cavity; the lamp tube in the reaction cavity is fixed on the bracket; the stirrer is arranged in the mixing cavity; ozone enters the reaction cavity from the gas inlet, and treated gas is discharged from the gas outlet under the action of the reducing agent, the microwave source and the lamp tube.

Optionally, the lamp tube is an electrodeless ultraviolet lamp with a wavelength of 254 nm.

Optionally, the catalyst is an ozone catalyst.

Optionally, the ozone catalyst is attached to a frame.

Optionally, the frame is made of a material that does not absorb microwaves.

Optionally, the microwave sources include a plurality of microwave sources, and the plurality of microwave sources are arranged on the top of the reaction cavity in an array manner.

Optionally, the device further comprises a sensor for detecting the flow rate and concentration of the air inlet and the air outlet.

Optionally, the apparatus further comprises a controller for adjusting the power of the microwave source according to the flow rate and/or the concentration.

The utility model has the advantages that: a microwave-based ozone abatement apparatus comprising: the device comprises a reaction cavity, a microwave source, a feed inlet, an air inlet, a mixing cavity, a stirrer, a lamp tube, a bracket, a catalyst and an air outlet; wherein the microwave source is arranged at the top of the reaction cavity; the lamp tube in the reaction cavity is fixed on the bracket; the stirrer is arranged in the mixing cavity; ozone enters the reaction cavity from the gas inlet, and treated gas is discharged from the gas outlet under the action of the reducing agent, the microwave source and the lamp tube. That is to say, the utility model discloses effect based on microwave, reductant and electrodeless ultraviolet lamp is handled ozone and ozone, has realized that high-efficient decomposition, equipment structure to ozone, equipment energy consumption are low and can long-term steady operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of an apparatus for removing ozone based on microwave according to an embodiment of the present invention.

Icon: 1-reaction chamber, 2-microwave source, 3-feed inlet, 4-air inlet, 5-mixing chamber, 6-stirrer, 7-lamp tube, 8-support, 9-catalyst and 10-air outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic view of a microwave-based ozone removing device, and the following describes in detail the microwave-based ozone removing device provided by the embodiment of the present invention with reference to fig. 1.

Fig. 1 is a schematic view of a device for removing ozone based on microwave according to an embodiment of the present invention, as shown in fig. 1, the device for removing ozone based on microwave includes: reaction chamber 1, microwave source 2, feed inlet 3, air inlet 4, mixing chamber 5, agitator 6, fluorescent tube 7, support 8, catalyst 9 and gas outlet 10.

The embodiment of the utility model provides an in, ozone has strong oxidizing property, is the oxidant stronger than oxygen, can take place oxidation reaction at the lower temperature, if can be with silver oxidation to silver peroxide silver, with lead sulfide oxidation lead sulfate, with potassium iodide reaction formation iodine. Turpentine, coal gas and the like can spontaneously combust in ozone. Ozone is a powerful bleaching agent in the presence of water. Ozonides are also readily formed at low temperatures with unsaturated organic compounds. Used as strong oxidant, bleaching agent, fur deodorizer, air purifier, disinfectant, and drinking water. Ozone can be used to replace many catalytic oxidations or high-temperature oxidations in chemical production, simplifying the production process and increasing the productivity. However, when a human inhales an excessive amount of ozone at a high concentration, fatigue, cough, chest distress and pain, skin wrinkles, nausea and headache, acceleration of pulse, memory deterioration, visual deterioration, and the like may occur.

In the embodiment of the present invention, the stirrer 6 is used for uniformly mixing the reducing agent entering from the feeding hole 3 with the ozone entering from the air inlet 4. Illustratively, the reductant can be methanol, hydrogen, carbon monoxide, methane, or the like. The reducing agent enters the mixing cavity 5 from the feed inlet 3 at a preset flow rate, the ozone enters the mixing cavity 5 in the reaction cavity 1 from the air inlet 4, and the reducing agent and the ozone are mixed under the action of the stirrer 6.

Optionally, the lamp tube 7 is an electrodeless ultraviolet lamp with a wavelength of 254 nm.

In the embodiment of the present invention, the lamp tube 7 is uniformly disposed on the bracket 8. Under the irradiation of an electrodeless ultraviolet lamp with the wavelength of 254nm, ozone is decomposed, so that the ozone is efficiently treated.

Optionally, a catalyst 9 is disposed between the regions of the adjacent uniform arrays of light tubes 7, wherein the catalyst 9 is an ozone catalyst, and the ozone catalyst is attached to the frame. The frame is made of a material that does not absorb microwaves.

In the embodiment of the utility model, 254 nm's electrodeless ultraviolet lamp is fixed on support 8. Optionally, every n 254nm electrodeless ultraviolet lamps are used as a reaction zone, wherein n is a positive integer greater than 5 and less than 20. Therefore, a plurality of ultraviolet lamp reaction zones are arranged in the reaction cavity, and a catalyst is arranged among the reaction zones. Is made of a material which does not absorb microwaves. For example, the frame may be polytetrafluoroethylene.

Optionally, the microwave source comprises a plurality of microwave sources, and the plurality of microwave sources are arranged on the top of the reaction cavity in an array manner.

In the embodiment of the present invention, the reaction chamber 1 is made of metal, and the metal is made of high temperature resistant metal. The microwave source 2 refers to a device for generating microwave energy, referred to as a microwave source. Here, the microwave source 2 includes a plurality of microwave sources 2, and the plurality of microwave sources 2 are distributed in an array on the top of the reaction chamber. The microwave is an electric wave having a frequency of 300 mhz to 300 ghz, and water molecules in the heated medium material are polar molecules. Under the action of a rapidly changing high-frequency point magnetic field, the polarity orientation of the magnetic field changes along with the change of an external electric field. The effect of mutual friction motion of molecules is caused, at the moment, the field energy of the microwave field is converted into heat energy in the medium, so that the temperature of the material is raised, and a series of physical and chemical processes such as thermalization, puffing and the like are generated to achieve the aim of microwave heating.

The microwave heating has the following advantages: the heating time is short; the heat energy utilization rate is high, and energy is saved; heating uniformly; the microwave source is easy to control, and the microwave can also induce the catalytic reaction.

The microwave is generated by a microwave source, which is mainly composed of a high-power magnetron. The magnetron is a device which completes energy conversion by utilizing the movement of electrons in vacuum and can generate high-power microwave energy, for example, a 4250MHz magnetic wave tube can obtain 5MHz, and a 4250MHz klystron can obtain 30MHz, so that the microwave technology can be applied to the technical field of wastewater treatment.

Optionally, the apparatus for removing ozone by microwave further comprises a sensor for detecting the flow rate and concentration of the air inlet and the air outlet.

The embodiment of the utility model provides an in, 4 departments of air inlet of reaction chamber 1 set up ozone flow detection sensor and ozone concentration detection sensor. Correspondingly, an ozone flow detection sensor and an ozone concentration detection sensor are arranged at the air outlet 10 of the reaction chamber 1.

Optionally, the apparatus for microwave removal of ozone further comprises a controller for adjusting the power of the microwave source 2 according to the flow rate and/or concentration.

The embodiment of the utility model provides an in, the ozone concentration and the ozone flow information real-time transfer that air inlet 4 and gas outlet 10 department detected convey to the controller, and when the ozone concentration of air inlet 4 was confirmed to the controller was greater than first predetermined threshold value, the flow of increase reductant, or control air inlet 4 and reduce the flow that gets into ozone. The controller determines that the concentration of ozone in the gas port 10 is greater than a second predetermined threshold, reduces the power of the microwave source, and increases the flow of the reducing agent. Further, the controller determines that the gas inlet 10 ozone concentration is greater than a second predetermined threshold, or controls the gas inlet 4 to reduce the flow of ozone into the gas inlet.

The embodiment of the utility model provides an in, set up the metal mesh respectively in air inlet 4 and gas outlet 10 punishment of the equipment of microwave elimination ozone, prevent that the microwave from revealing. Furthermore, the aperture of the metal net is less than or equal to 3 mm. Here, in order to prevent the microwave leakage. When the human body is very close to the microwave radiation source for a long time, the phenomena of dizziness, sleep disorder, hypomnesis, bradycardia, blood pressure reduction and the like are caused by excessive radiation energy. When the microwave leakage reaches 1mw/cm²When it occurs, the eyes feel suddenly dazzled, the vision is degraded, and even cataract is caused. In order to ensure the health of users, metal nets are arranged at the inlet and the outlet of the reaction cavity, and the corners can generate microwave discharge under the action of microwaves, so that dangerous accidents are easy to happen. The metal mesh can block microwave leakage, reduce the damage of microwave to human body and improve the safety of the system.

In the embodiment of the utility model, in order to make reaction chamber 1 thermally equivalent under the effect of microwave source 2, set up a plurality of microwave sources 2 at reaction chamber 1 top. It should be noted that under the action of the external alternating electromagnetic field, the polar molecules in the material are polarized and alternate orientation is achieved along with the change of the polarity of the external alternating electromagnetic field, so that the electromagnetic energy is converted into heat energy due to frequent friction loss among a plurality of polar molecules.

Wherein, the microwave source 2 is arranged at the top of the reaction cavity 1; the lamp tube 7 in the reaction chamber 1 is fixed on the bracket 8; the stirrer 6 is arranged in the mixing cavity 5; ozone enters the reaction cavity 1 from the gas inlet, and treated gas is discharged from the gas outlet 10 under the action of the reducing agent, the microwave source 2 and the lamp tube 7.

The embodiment of the utility model provides an in, ozone gets into mixing chamber 5 from air inlet 4 of reaction chamber 1, and the reductant gets into mixing chamber 5 from feeder hopper 3 simultaneously, mixes the reductant in mixing chamber 5 with ozone under the effect of agitator 6. Further, the mixed gas is subjected to ozonolysis through an ozone catalyst 9 layer, the decomposed gas is subjected to multistage treatment, namely is decomposed under the combined action of microwaves and 254nm electrodeless ultraviolet lamps for many times, and finally the decomposed oxygen and other harmless gases are discharged out of the reaction cavity 1 from the gas outlet 10.

Furthermore, the air outlet 10 of the device for eliminating ozone based on microwave can be provided with a filter screen, and the filter screen is used for filtering particulate matters generated after the ozone molecules to be treated react. Wherein, the filter screen is replaceable to be convenient for later maintenance.

The embodiment discloses a device based on microwave elimination ozone, a device based on microwave elimination ozone includes: the microwave catalytic reactor comprises a reaction cavity 1, a microwave source 2, a feed inlet 3, a gas inlet 4, a mixing cavity 5, a stirrer 6, a lamp tube 7, a bracket 8, a catalyst 9 and a gas outlet 10; wherein, the microwave source 2 is arranged at the top of the reaction cavity 1; the lamp tube 7 in the reaction chamber 1 is fixed on the bracket 8; the stirrer 6 is arranged in the mixing cavity 5; ozone enters the reaction cavity 1 from the gas inlet 4, and treated gas is discharged from the gas outlet under the action of the reducing agent, the microwave source and the lamp tube. That is to say, the utility model discloses effect based on microwave, reductant and electrodeless ultraviolet lamp is handled ozone and ozone, has realized that high-efficient decomposition, equipment structure to ozone, equipment energy consumption are low and can long-term steady operation.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An apparatus for eliminating ozone based on microwave, comprising: the device comprises a reaction cavity, a microwave source, a feed inlet, an air inlet, a mixing cavity, a stirrer, a lamp tube, a bracket, a catalyst and an air outlet;

2. The microwave-based ozone elimination device of claim 1, wherein the lamp tube is an electrodeless ultraviolet lamp with a wavelength of 254 nm.

3. The microwave-based ozone elimination device of claim 1, wherein the catalyst is an ozone catalyst.

4. The microwave-based ozone elimination device of claim 3, wherein the ozone catalyst is attached to the frame.

5. The microwave-based ozone elimination device of claim 4, wherein the frame is made of a material that does not absorb microwaves.

6. The microwave-based ozone elimination device of claim 1, wherein the microwave source comprises a plurality of microwave sources, and the plurality of microwave sources are arranged on the top of the reaction cavity in an array manner.

7. The microwave-based ozone elimination device of claim 1, further comprising a sensor for detecting the flow rate and concentration of the gas inlet and outlet.

8. The microwave-based ozone elimination device of claim 7, further comprising a controller for adjusting the power of the microwave source according to the flow rate and/or the concentration.