Pipeline-free reagent cabinet purification device based on microwave cracking

Abstract

The utility model discloses a pipeline-free reagent cabinet purification device based on microwave cracking, which comprises a microwave resonant cavity, a microwave generator, an ultraviolet lamp tube and a fan, the ultraviolet lamp tube is fixed in the microwave resonant cavity, the microwave generator is arranged on the outer side of the microwave resonant cavity, and the fan is arranged on the outer side of the microwave resonant cavity. The microwave generator is arranged in the microwave resonant cavity, a microwave transmitting end of the microwave generator faces the microwave resonant cavity, the fan is fixed at a top opening of the microwave resonant cavity, an air inlet end of the fan is communicated with the microwave resonant cavity, and meshes for harmful waste gas to pass through are densely distributed at the bottom of the microwave resonant cavity. Compared with a combined structure adopting various filter elements in the prior art, the filter element does not need to be checked and replaced, the maintenance is easy, the application cost is low, meanwhile, the labor cost is saved, and the application requirement is well met.

Description

Technical Field

[0001] This utility model relates to a device for treating harmful waste gas, and more particularly to a pipeless reagent cabinet purification device based on microwave pyrolysis. Background Technology

[0002] Currently, the top of the pipeless reagent cabinets used in laboratories is usually equipped with a filtration system. The filtration system is composed of various filter adsorption materials, such as HEPA filters, formaldehyde filters, and VOCs filters. Using adsorption materials has some drawbacks, such as short lifespan and the need for regular replacement, which will not only generate after-sales costs but also increase manpower input. If they are not replaced in time, they will also cause pollution to the laboratory. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a pipeless reagent cabinet purification device based on microwave pyrolysis that is easy to maintain, has low application cost, and saves manpower, in order to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0005] A pipeless reagent cabinet purification device based on microwave pyrolysis includes a microwave resonant cavity, a microwave generator, an ultraviolet lamp, and a fan. The ultraviolet lamp is fixed inside the microwave resonant cavity. The microwave generator is located outside the microwave resonant cavity with its microwave emitting end facing the microwave resonant cavity. The fan is fixed at the top opening of the microwave resonant cavity, and the air inlet of the fan is connected to the microwave resonant cavity. The bottom of the microwave resonant cavity is densely covered with mesh holes for the passage of harmful waste gases.

[0006] Preferably, there are multiple ultraviolet lamps arranged in an array within the microwave resonant cavity.

[0007] Preferably, the top opening edge of the microwave resonant cavity is formed with a side groove, and the lower edge of the fan is engaged in the side groove.

[0008] Preferably, a wind shield is fixed to the bottom of the microwave resonant cavity, and the mesh is connected to the top of the wind shield.

[0009] Preferably, the wind hood is a wind hood with a trapezoidal cross-section.

[0010] Preferably, wedge-shaped support plates are fixed on both sides of the inclined surface of the wind shroud, and the microwave generator is fixed on the wedge-shaped support plates.

[0011] Preferably, a microwave power supply for powering the microwave generator is fixed on the wedge-shaped support plate.

[0012] In the microwave-based purification device for a pipeless reagent cabinet disclosed in this utility model, the microwave resonant cavity is fixedly installed on the top of the pipeless reagent cabinet, and the fan is fixedly installed at the top opening of the microwave resonant cavity. When the fan operates, harmful waste gas generated inside the pipeless reagent cabinet is drawn in through the densely distributed mesh at the bottom of the microwave resonant cavity. At the same time, the microwave generator and the ultraviolet lamp are activated, and the microwave generator radiates microwaves into the microwave resonant cavity. Based on the combined action of microwave pyrolysis and ultraviolet irradiation, the gas discharged from the pipeless reagent cabinet is rendered harmless within the microwave resonant cavity. The treated gas is then discharged outward through the fan. Compared with the combination structure of various filter elements used in the prior art, this utility model eliminates the need for inspection and replacement of filter elements, making it not only easy to maintain but also low in application cost and saving labor costs, thus better meeting application requirements. Attached Figure Description

[0013] Figure 1 This invention relates to a pipeless reagent cabinet purification device based on microwave pyrolysis. Figure 1 ;

[0014] Figure 2 This invention relates to a pipeless reagent cabinet purification device based on microwave pyrolysis. Figure 2 . Detailed Implementation

[0015] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.

[0016] This utility model discloses a pipeless reagent cabinet purification device based on microwave pyrolysis, combined with... Figures 1 to 2 As shown, it includes a microwave resonant cavity 1, a microwave generator 2, an ultraviolet lamp 3, and a fan 4. The ultraviolet lamp 3 is fixed inside the microwave resonant cavity 1. The microwave generator 2 is located on the outside of the microwave resonant cavity 1, and the microwave emitting end of the microwave generator 2 faces the microwave resonant cavity 1. The fan 4 is fixed at the top opening of the microwave resonant cavity 1, and the air inlet end of the fan 4 is connected to the microwave resonant cavity 1. The bottom of the microwave resonant cavity 1 is densely covered with mesh holes 10 for the passage of harmful waste gas.

[0017] In the above structure, the microwave resonant cavity 1 is fixedly installed on the top of the pipeless reagent cabinet, and the fan 4 is fixedly installed at the top opening of the microwave resonant cavity 1. When the fan 4 is running, harmful waste gas generated in the pipeless reagent cabinet is drawn in through the densely distributed mesh 10 at the bottom of the microwave resonant cavity 1. At the same time, the microwave generator 2 and the ultraviolet lamp 3 are activated, and the microwave generator 2 radiates microwaves into the microwave resonant cavity 1. The microwave resonant cavity 1, based on the combined action of microwave decomposition and ultraviolet irradiation, performs harmless treatment on the gas discharged from the pipeless reagent cabinet. The treated gas is discharged outward through the fan 4. Compared with the combination structure of various filter elements in the prior art, this utility model does not require inspection and replacement of filter elements, which is not only easy to maintain, but also has low application cost and saves labor costs, thus better meeting the application requirements.

[0018] As a preferred embodiment, the number of ultraviolet lamps 3 is multiple, and the multiple ultraviolet lamps 3 are arranged in an array within the microwave resonant cavity 1. In this embodiment, the ultraviolet lamps 3 are electrodeless ultraviolet lamps, and multiple ultraviolet lamps 3 are installed simultaneously within the microwave resonant cavity 1 to ensure sufficient ultraviolet irradiation. Furthermore, the spacing between adjacent ultraviolet lamps 3 is consistent, allowing harmful gases to be fully irradiated with ultraviolet light.

[0019] To achieve a closer fit with the fan 4, in this embodiment, a side groove 11 is formed at the top opening edge of the microwave resonant cavity 1, and the lower edge of the fan 4 is engaged within the side groove 11. Please refer to... Figure 1 The fan 4 is a cuboid fan, and the microwave resonant cavity 1 is a cuboid cavity. The connection between the fan 4 and the microwave resonant cavity 1 needs to be sealed.

[0020] In a preferred embodiment, a shroud 5 is fixed to the bottom of the microwave resonant cavity 1, and the mesh 10 is connected to the top of the shroud 5. Further, the shroud 5 is a trapezoidal shroud in cross-section. In this embodiment, a trapezoidal shroud with a larger bottom opening area and a smaller top opening area is preferably used. This structure allows the shroud 5 to collect and draw in more harmful waste gases, thereby improving the efficiency of harmful gas treatment.

[0021] In order to more reliably support and fix the microwave generator 2, in this embodiment, wedge-shaped support plates 6 are fixed on both sides of the inclined surface of the shroud 5, and the microwave generator 2 is fixed on the wedge-shaped support plates 6.

[0022] Based on this, a microwave power supply 7 for supplying power to the microwave generator 2 is fixed on the wedge-shaped support plate 6.

[0023] In a preferred embodiment of this utility model, the microwave power supply and the microwave resonant cavity are rigidly connected on the outside by screws. The inside and outside of the resonant cavity are smooth and flat, with no exposed hardware accessories. The microwave generator assembly includes a magnetron, waveguide, air guide, cooling fan, and temperature sensor assembly, which are rigidly connected to the side of the microwave resonant cavity by bolts. The electrodeless ultraviolet lamps are placed in the microwave resonant cavity, with vertical and horizontal spacing of 68.5mm and 45mm, respectively. The specific number of lamps is adjusted according to different working conditions. The bottom of the microwave resonant cavity is in the form of a collection cover with a Φ6mm round hole, which serves as an airflow distribution channel and also serves to shield microwave leakage. The bottom of the fan unit also has a Φ6mm round hole, which serves as an airflow distribution channel and also serves to shield microwave leakage. The fan unit is also equipped with a VOCs, temperature and humidity monitoring probe, and ozone absorber to collect and display relevant parameters from the tubeless reagent cabinet. When harmful exhaust gases enter from the bottom of the microwave resonant cavity, they are decomposed into pollution-free gases under the synergistic effect of the microwave field, 185nm shortwave ultraviolet light, hydroxyl groups, carboxyl groups, and trace amounts of ozone, thus being safely discharged.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A pipeless reagent cabinet purification device based on microwave pyrolysis, characterized in that, The device includes a microwave resonant cavity (1), a microwave generator (2), an ultraviolet lamp (3), and a fan (4). The ultraviolet lamp (3) is fixed inside the microwave resonant cavity (1). The microwave generator (2) is located outside the microwave resonant cavity (1), and the microwave emitting end of the microwave generator (2) faces the microwave resonant cavity (1). The fan (4) is fixed at the top opening of the microwave resonant cavity (1), and the air inlet of the fan (4) is connected to the microwave resonant cavity (1). The bottom of the microwave resonant cavity (1) is densely covered with mesh holes (10) for the passage of harmful exhaust gases.

2. The pipeless reagent cabinet purification device based on microwave pyrolysis as described in claim 1, characterized in that, The number of ultraviolet lamps (3) is multiple, and the multiple ultraviolet lamps (3) are distributed in an array inside the microwave resonant cavity (1).

3. The pipeless reagent cabinet purification device based on microwave pyrolysis as described in claim 1, characterized in that, The top opening edge of the microwave resonant cavity (1) is formed with a side groove (11), and the lower edge of the fan (4) is fitted into the side groove (11).

4. The pipeless reagent cabinet purification device based on microwave pyrolysis as described in claim 1, characterized in that, The bottom of the microwave resonant cavity (1) is fixed with a wind cover (5), and the mesh (10) is connected to the top of the wind cover (5).

5. The pipeless reagent cabinet purification device based on microwave pyrolysis as described in claim 4, characterized in that, The wind shield (5) is a wind shield with a trapezoidal cross-section.

6. The pipeless reagent cabinet purification device based on microwave pyrolysis as described in claim 5, characterized in that, Both sides of the wind shield (5) are fixed with wedge-shaped support plates (6), and the microwave generator (2) is fixed on the wedge-shaped support plates (6).

7. The pipeless reagent cabinet purification device based on microwave pyrolysis as described in claim 6, characterized in that, A microwave power supply (7) for supplying power to the microwave generator (2) is fixed on the wedge-shaped support plate (6).

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