A UV-based catalytic oxidation exhaust gas treatment test device

Abstract

The utility model provides a UV-based catalytic oxidation waste gas treatment test device, including a shell and a monitoring terminal, the shell having an air inlet and an air outlet, the shell including a pretreatment chamber, a reaction chamber and a detection chamber connected in sequence along the exhaust gas flow direction, the air outlet is detachably connected to a collection chamber; a fan assembly is also provided at the air outlet, an ultraviolet light source area and at least one catalyst bed are sequentially arranged in the reaction chamber along the exhaust gas flow direction, at least one gas detection assembly is arranged in the detection chamber, and the monitoring terminal is electrically connected to the ultraviolet light source area, the fan assembly and the gas detection assembly respectively. The utility model can study the simulation of the influence of different treatment objects, catalyst types, flow rates, light intensity, power and other conditions on the treatment effect, so as to obtain efficient and stable treatment measures.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment and relates to a UV-based catalytic oxidation waste gas treatment test device. Background Art

[0002] With the rapid development of industrialization, the emission of volatile organic compounds (VOCs) is becoming increasingly serious, not only polluting the environment, but also posing a threat to human health. As an efficient VOCs treatment method, UV (Ultraviolet radiation) catalytic oxidation technology has good application prospects.

[0003] CN209576305U discloses a device for treating waste gas by utilizing high-energy ultraviolet light photocatalysis in coordination with ozone catalysis, comprising a barrel-shaped device body, one end of which is provided with an air inlet, and the other end of which is provided with an exhaust port; a glass fiber filter, a wave baffle area and a rectangular baffle area are sequentially arranged in the device body from the air inlet to the exhaust port; the diameter of the glass fiber filter is the same as the inner diameter of the device body, a group of wave baffles are arranged in the wave baffle area, wherein the extension direction of the waves is consistent with the running direction of the gas, and ultraviolet lamps are arranged between the wave baffles; a group of staggered rectangular baffles are arranged in the rectangular baffle area to increase the travel distance of the gas in the rectangular baffle area.

[0004] CN207886979U discloses a drawer-type electrodeless ultraviolet catalytic organic waste gas treatment test device, comprising: a cavity, an air inlet and an air outlet arranged on both sides of the cavity, a flow equalizer and at least two groups of electrodeless ultraviolet catalytic modules arranged in sequence in the cavity along the gas flow direction; each group of electrodeless ultraviolet catalytic module packages are arranged in sequence in the cavity along the gas flow direction, an electrodeless ultraviolet lamp assembly, a catalyst plate and a microwave generator arranged on the top outside the cavity and adjacent to the electrodeless ultraviolet lamp assembly; a door is arranged on the cavity on one side of each group of electrodeless ultraviolet catalytic modules; the flow equalizer, the electrodeless ultraviolet lamp assembly and the catalyst plate are arranged radially along the cavity; the upper and lower ends of the electrodeless ultraviolet lamp assembly and the catalyst plate are respectively provided with slide rails; the top and bottom of the cavity are respectively provided with guide rails matching the slide rails.

[0005] However, the above-mentioned treatment devices are unable to monitor the exhaust gas treatment effect. Therefore, it is of great practical value to design an efficient and stable UV catalytic oxidation treatment experimental device to detect the treatment effect based on different application scenarios and obtain the optimal exhaust gas treatment mode. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a UV-based catalytic oxidation exhaust gas treatment test device, which can not only efficiently treat exhaust gas, but also simulate and study the influence of different treatment objects, catalyst types, flow rates, light intensities, power and other conditions on the treatment effect, so as to obtain efficient and stable treatment measures, or develop economically feasible treatment equipment and models based on the impact research, so as to achieve both high efficiency and energy saving, and coordinated pollution reduction and carbon reduction.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a UV-based catalytic oxidation exhaust gas treatment test device, the catalytic oxidation exhaust gas treatment test device comprises a shell and a monitoring terminal, the shell has an air inlet and an air outlet, the shell comprises a pretreatment chamber, a reaction chamber and a detection chamber which are sequentially connected along the exhaust gas flow direction, the air outlet is detachably connected with a collection chamber; a fan assembly is also arranged at the air outlet, an ultraviolet light source area and at least one catalyst bed are sequentially arranged in the reaction chamber along the exhaust gas flow direction, at least one gas detection assembly is arranged in the detection chamber, and the monitoring terminal is electrically connected to the ultraviolet light source area, the fan assembly and the gas detection assembly respectively.

[0009] The utility model introduces the exhaust gas into the air inlet, turns on the fan assembly at the outlet, and the light source of the ultraviolet light source zone in the reaction chamber, adjusts the light intensity, reaction temperature and gas flow rate, etc., so that the exhaust gas enters the pretreatment chamber, removes particulate matter and moisture in the exhaust gas, and then enters the reaction chamber, catalytically oxidizes the exhaust gas under ultraviolet irradiation, and finally enters the detection chamber to detect the treatment effect and collect the treated gas. Not only can the exhaust gas be efficiently treated, but also the influence of different treatment objects, catalyst types, flow rates, light intensities, powers and other conditions on the treatment effect can be studied and simulated, so as to obtain efficient and stable treatment measures.

[0010] As a preferred technical solution of the utility model, at least one filter assembly and / or at least one adsorption layer are sequentially arranged in the pretreatment chamber along the flow direction of the exhaust gas.

[0011] The filter assembly in the utility model is used to filter out particulate matter in the exhaust gas, and the adsorption layer is used to absorb moisture in the exhaust gas to avoid affecting the subsequent catalytic oxidation reaction, which is beneficial to improving the exhaust gas treatment effect and preventing damage to the catalytic oxidation materials and equipment.

[0012] It should be noted that the present invention does not specifically limit the structure, type and material of the filter assembly and the adsorption layer. Any filter assembly and adsorption layer known to those skilled in the art that can be applied to exhaust gas pretreatment can be adopted. Those skilled in the art can make adjustments based on the treatment object and the type and concentration of pollutants in the exhaust gas.

[0013] As a preferred technical solution of the utility model, a plurality of ultraviolet lamp groups are arranged in the ultraviolet light source area, and the plurality of ultraviolet lamp groups are radially distributed along the inner cavity wall of the reaction chamber to form an ultraviolet lamp disk.

[0014] The utility model adopts a high-intensity and high-stability ultraviolet lamp panel as a light source, so that the light distribution in the reaction chamber is uniform, the photocatalytic efficiency is improved, and the luminous power of the ultraviolet lamp panel can be adjusted through the monitoring terminal, thereby adjusting the light intensity to adapt to different treatment objects.

[0015] As a preferred technical solution of the utility model, an ozone generating assembly is further arranged outside the shell, the ozone generating assembly is connected to the air inlet and is used to provide ozone, and an ozone catalyst layer is further arranged at one end of the catalyst bed away from the ultraviolet light source area.

[0016] The reaction chamber of the utility model is resistant to high temperature and corrosion, supports the reaction between catalysts of different sizes, shapes and types and exhaust gas, and is convenient for studying the catalyst type with the best effect.

[0017] It should be noted that the utility model can selectively introduce ozone to assist in exhaust gas purification according to different application scenarios, exhaust gas pollutant types, treatment requirements or treatment volumes, and those skilled in the art can make adaptive adjustments based on actual treatment conditions.

[0018] As a preferred technical solution of the utility model, a temperature detection component is also provided in the reaction chamber, and the temperature detection component is electrically connected to the monitoring terminal.

[0019] The utility model adopts a temperature detection component to collect the temperature condition in the reaction chamber so that the staff can adjust the reaction temperature according to different research scenarios.

[0020] As a preferred technical solution of the utility model, the fan assembly is provided with an air volume regulating valve, the air volume regulating valve is used to adjust the flow rate and flow velocity of the exhaust gas in the shell, and the air volume regulating valve is electrically connected to the monitoring terminal.

[0021] As a preferred technical solution of the present utility model, the fan assembly is a centrifugal fan.

[0022] The utility model is provided with a fan assembly, and uses an air volume regulating valve to control the flow rate and flow velocity of the waste gas in the shell, so as to ensure that the waste gas fully reacts in the reaction chamber and discharges the treated waste gas.

[0023] As a preferred technical solution of the utility model, the monitoring terminal is provided with an audible and visual alarm component, and the audible and visual alarm component is electrically connected to the gas detection component.

[0024] As a preferred technical solution of the utility model, the catalytic oxidation exhaust gas treatment test device also includes a power supply, which is respectively connected to the ultraviolet light source area and the fan assembly to provide electrical energy.

[0025] As a preferred technical solution of the utility model, the monitoring terminal is also provided with an automatic circuit breaker, and the automatic circuit breaker is electrically connected to the power supply.

[0026] The monitoring terminal of the utility model can be combined with the gas detection component to monitor the processing effect and energy consumption in the reaction chamber in real time. Through the built-in logical operation system familiar to those skilled in the art, a set of processing energy consumption coefficients is generated as a feasibility and effect evaluation, which is convenient for studying a large number of different processing conditions and scenarios. In addition, to ensure safety during use, the monitoring terminal also has a gas alarm function and an automatic power-off function to prevent leaked ozone, exhaust gas and ultraviolet light from causing serious damage to the human body.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] The utility model provides a UV-based catalytic oxidation waste gas treatment test device, which introduces waste gas into an air inlet, turns on a fan assembly at the outlet, and a light source in a UV light source area in a reaction chamber, and adjusts light intensity, reaction temperature, and gas flow rate, so that the waste gas enters a pretreatment chamber, removes particulate matter and moisture in the waste gas, and then enters the reaction chamber, where the waste gas is catalytically oxidized under UV irradiation, and finally enters a detection chamber to detect the treatment effect and collect the treated gas. The utility model can not only efficiently treat the waste gas, but also realize simulation of the influence of different treatment objects, catalyst types, flow rates, light intensities, powers, and other conditions on the treatment effect, thereby obtaining efficient and stable treatment measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the UV-based catalytic oxidation exhaust gas treatment test device provided in Example 1 of the utility model.

[0030] Among them, 1-shell; 2-air inlet; 3-air outlet; 4-pretreatment chamber; 5-reaction chamber; 6-detection chamber; 7-collection chamber. DETAILED DESCRIPTION

[0031] It should be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0033] Those skilled in the art should understand that the present invention necessarily includes necessary pipelines, conventional valves and general pump equipment for realizing a complete process, but the above content does not constitute the main innovation of the present invention. Those skilled in the art can add layouts on their own based on the process flow and equipment structure selection, and the present invention does not make special requirements or specific limitations on this.

[0034] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0035] In a specific embodiment, the utility model provides a UV-based catalytic oxidation exhaust gas treatment test device, including a shell and a monitoring terminal, the shell having an air inlet and an air outlet, the shell including a pretreatment chamber, a reaction chamber and a detection chamber connected in sequence along the exhaust gas flow direction, the air outlet is detachably connected to a collection chamber; a fan assembly is also arranged at the air outlet, an ultraviolet light source area and at least one catalyst bed are arranged in sequence in the reaction chamber along the exhaust gas flow direction, at least one gas detection assembly is arranged in the detection chamber, and the monitoring terminal is electrically connected to the ultraviolet light source area, the fan assembly and the gas detection assembly, respectively.

[0036] During the application process, the exhaust gas is introduced into the air inlet, the fan assembly at the outlet and the light source in the ultraviolet light source area in the reaction chamber are turned on, and the light intensity, reaction temperature and gas flow rate are adjusted to allow the exhaust gas to enter the pretreatment chamber, remove particulate matter and moisture in the exhaust gas, and then enter the reaction chamber to perform catalytic oxidation treatment on the exhaust gas under ultraviolet irradiation, and finally enter the detection chamber to detect the treatment effect and collect the treated gas, so as to study the influence of different treatment objects, catalyst types, flow rates, light intensities, powers and other conditions on the treatment effect, thereby obtaining efficient and stable treatment measures.

[0037] Specifically, the air outlet flange of the shell is connected to the collection chamber, and a detachable collection chamber is provided at the end of the device to collect the treated exhaust gas for centralized treatment.

[0038] In some embodiments, at least one filter assembly and / or at least one adsorption layer are sequentially arranged in the pretreatment chamber along the exhaust gas flow direction. The filter assembly is used to filter out particulate matter in the exhaust gas, and the adsorption layer is used to absorb moisture in the exhaust gas to avoid affecting the subsequent catalytic oxidation reaction, which is conducive to improving the exhaust gas treatment effect and preventing damage to the catalytic oxidation materials and equipment.

[0039] For example, the filter assembly can be a glass fiber filter known to those skilled in the art, and the adsorption layer can be an activated carbon adsorption layer. Of course, it is understandable that other types of filter assemblies or adsorption layers that can achieve pretreatment of exhaust gas can also be used in the present invention.

[0040] In some embodiments, a plurality of ultraviolet lamp groups are arranged in the ultraviolet light source area, and the plurality of ultraviolet lamp groups are radially distributed along the inner wall of the reaction chamber to form an ultraviolet lamp disk. The utility model adopts an ultraviolet lamp disk with high intensity and high stability as a light source, so that the light distribution in the reaction chamber is uniform, the photocatalytic efficiency is improved, and the luminous power of the ultraviolet lamp disk can be adjusted through the monitoring terminal, thereby adjusting the light intensity to adapt to different treatment objects.

[0041] In some embodiments, an ozone generating assembly is further disposed on the outside of the shell, and the ozone generating assembly is connected to the air inlet for providing ozone, and an ozone catalyst layer is further disposed at one end of the catalyst bed away from the ultraviolet light source area. The reaction chamber of the utility model is resistant to high temperature and corrosion, and supports the reaction of catalysts of different sizes, shapes and types with exhaust gas, which is convenient for studying the type of catalyst with the best effect. Ozone is introduced into the reaction chamber together with the exhaust gas, and the ozone intake volume can be adjusted to perform catalytic oxidation treatment on the ozone catalyst layer, further enhancing the exhaust gas treatment effect.

[0042] Specifically, the utility model electrically connects the ozone generating component to the monitoring terminal to achieve remote automatic adjustment of the ozone intake amount.

[0043] For example, the photocatalyst layer may be filled with a TiO2 photocatalyst known to those skilled in the art, and the ozone catalyst layer may be filled with an ozone catalyst of a molecular sieve or activated alumina loaded with metal oxides such as Mn, Ni, and Co known to those skilled in the art. Of course, it is understandable that other types of catalysts that can achieve catalytic oxidation treatment of exhaust gas can be used in the present invention.

[0044] In some embodiments, a temperature detection component is further provided in the reaction chamber, and the temperature detection component is electrically connected to the monitoring terminal. The temperature detection component is used to collect the temperature conditions in the reaction chamber so that the staff can adjust the reaction temperature according to different research scenarios.

[0045] In some embodiments, the fan assembly is provided with an air volume regulating valve, the air volume regulating valve is used to adjust the flow rate and flow rate of the exhaust gas in the shell, and the air volume regulating valve is electrically connected to the monitoring terminal. Specifically, the fan assembly is a centrifugal fan. The utility model is provided with a fan assembly, and uses the air volume regulating valve to control the flow rate and flow rate of the exhaust gas in the shell, to ensure that the exhaust gas is fully reacted in the reaction chamber, and the treated exhaust gas is discharged.

[0046] In some embodiments, the monitoring terminal is provided with an audible and visual alarm component, and the audible and visual alarm component is electrically connected to the gas detection component.

[0047] In some embodiments, the catalytic oxidation exhaust gas treatment test device further includes a power supply, and the power supply is respectively connected to the ultraviolet light source area and the fan assembly to provide electrical energy.

[0048] In some implementations, the monitoring terminal is further provided with an automatic circuit breaker, and the automatic circuit breaker is electrically connected to the power supply.

[0049] The monitoring terminal of the utility model can be combined with the gas detection component to monitor the processing effect and energy consumption in the reaction chamber in real time. Through the built-in logical operation system familiar to the technicians in this field, a set of processing energy consumption coefficients is generated as a feasibility and effect evaluation, which is convenient for studying a large number of different processing conditions and scenarios. In addition, to ensure safety during use, the monitoring terminal also has a gas alarm function and an automatic power-off function to prevent leaked ozone, exhaust gas and ultraviolet light from causing serious damage to the human body. The monitoring terminal can also record the adjusted parameters and experimental results.

[0050] Example 1

[0051] This embodiment provides a UV-based catalytic oxidation exhaust gas treatment test device, including a housing 1 and a monitoring terminal. Figure 1 As shown, the shell 1 has an air inlet 2 and an air outlet 3. The shell 1 includes a pretreatment chamber 4, a reaction chamber 5 and a detection chamber 6 which are connected in sequence along the flow direction of the exhaust gas. The air outlet 3 is detachably connected to a collection chamber 7. A centrifugal fan is also provided at the air outlet. The centrifugal fan is provided with an air volume regulating valve for adjusting the flow rate and flow velocity of the exhaust gas in the shell 1. The air volume regulating valve is electrically connected to the monitoring terminal.

[0052] A filter assembly and an adsorption layer are sequentially arranged in the pretreatment chamber 4 along the flow direction of the exhaust gas, which are used to remove particulate matter and moisture in the exhaust gas. An ultraviolet light source area and a photocatalyst bed are sequentially arranged in the reaction chamber 5 along the flow direction of the exhaust gas. A plurality of ultraviolet lamp groups are arranged in the ultraviolet light source area, and are radially distributed along the inner cavity wall of the reaction chamber 5 to form an ultraviolet lamp disk, and the ultraviolet light source area is electrically connected to the monitoring terminal, which is used to control the luminous power and adjust the light intensity. A temperature detection assembly is also arranged in the reaction chamber 5, and the temperature detection assembly is electrically connected to the monitoring terminal. A plurality of gas detection assemblies are arranged in the detection chamber 6, and are electrically connected to the monitoring terminal, which is used to analyze the exhaust gas treatment effect.

[0053] The catalytic oxidation exhaust gas treatment test device also includes a power supply, which is respectively connected to the ultraviolet light source area and the centrifugal fan to provide electrical energy. The monitoring terminal is provided with an automatic circuit breaker and an audible and visual alarm component, the automatic circuit breaker is electrically connected to the power supply, and the audible and visual alarm component is electrically connected to the gas detection component.

[0054] Example 2

[0055] The present embodiment provides a UV-based catalytic oxidation exhaust gas treatment test device, which differs from Embodiment 1 in that an ozone generating assembly is also provided on the outside of the shell 1, and the ozone generating assembly is connected to the air inlet 2 for providing ozone, and an ozone catalyst layer is also provided at one end of the catalyst bed away from the ultraviolet light source area, and the monitoring terminal is also electrically connected to the ozone generating assembly, and the air intake volume of the ozone generating assembly is adjustable, and the remaining structures are the same as those in Embodiment 1.

[0056] The applicant declares that the above is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. The technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by the technicians in the relevant technical field within the technical scope disclosed in the present utility model fall within the protection scope and disclosure scope of the present utility model.

Claims

1. A UV-based catalytic oxidation exhaust gas treatment test device, characterized in that: The catalytic oxidation exhaust gas treatment test device comprises a housing and a monitoring terminal, wherein the housing has an air inlet and an air outlet, and the housing comprises a pretreatment chamber, a reaction chamber and a detection chamber which are sequentially connected along the exhaust gas flow direction, and the air outlet is detachably connected to a collection chamber; A fan assembly is also provided at the gas outlet, and an ultraviolet light source area and at least one catalyst bed are arranged in sequence along the exhaust gas flow direction in the reaction chamber. At least one gas detection assembly is provided in the detection chamber, and the monitoring terminal is electrically connected to the ultraviolet light source area, the fan assembly and the gas detection assembly respectively.

2. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1 is characterized in that: At least one filter assembly and / or at least one adsorption layer are sequentially arranged in the pretreatment chamber along the flow direction of the exhaust gas.

3. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1 is characterized in that: A plurality of ultraviolet lamp groups are arranged in the ultraviolet light source area, and the plurality of ultraviolet lamp groups are radially distributed along the inner cavity wall of the reaction chamber to form an ultraviolet lamp disk.

4. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1, characterized in that: An ozone generating assembly is also arranged outside the shell, and the ozone generating assembly is connected to the air inlet for providing ozone. An ozone catalyst layer is also arranged at one end of the catalyst bed away from the ultraviolet light source area.

5. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1, characterized in that: A temperature detection component is also provided in the reaction chamber, and the temperature detection component is electrically connected to the monitoring terminal.

6. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1, characterized in that: The fan assembly is provided with an air volume regulating valve, and the air volume regulating valve is used to adjust the flow rate and flow velocity of the exhaust gas in the shell, and the air volume regulating valve is electrically connected to the monitoring terminal.

7. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1, characterized in that: The fan assembly is a centrifugal fan.

8. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1, characterized in that: The monitoring terminal is provided with an audible and visual alarm component, and the audible and visual alarm component is electrically connected to the gas detection component.

9. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 1, characterized in that: The catalytic oxidation exhaust gas treatment test device also includes a power supply, which is respectively connected to the ultraviolet light source area and the fan assembly to provide electrical energy.

10. The UV-based catalytic oxidation exhaust gas treatment test device according to claim 9, characterized in that: The monitoring terminal is also provided with an automatic circuit breaker, and the automatic circuit breaker is electrically connected to the power supply.

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