Volatile organic compound purification device
By arranging heating modules and catalyst modules alternately in the purification device, the problem of low purification efficiency of volatile organic compounds in large-scale manufacturing industries is solved, and efficient waste gas treatment is achieved.
Patent Information
- Application Number
- CN202423200090.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing volatile organic compound purification devices are unable to effectively handle large quantities of waste gas in large-scale manufacturing industries, resulting in low purification efficiency.
A volatile organic compound purification device is designed, which uses staggered heating modules and catalyst modules to improve purification efficiency through heating and catalytic decomposition reactions.
By alternating the heating and catalyst modules, the efficient decomposition of volatile organic compounds is achieved, thereby enhancing the processing capacity of the purification device.
Smart Images
Figure CN223628417U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pollutant purification device, in particular to a volatile organic compound purification device. BACKGROUND
[0002] In the manufacturing industry (such as the semiconductor industry), a large amount of organic solvent is often used to clean wafers to remove pollutants attached to the wafers during the manufacturing process. Volatile organic compounds (VOC) generated during the cleaning process can easily evaporate and disperse into the environment, causing environmental pollution and even harm to human health. Therefore, volatile organic compounds have become one of the important regulated pollutants.
[0003] To avoid direct emission of volatile organic compounds causing environmental pollution or discomfort to the human body, a volatile organic compound purification device is usually set up in the cleaning process to decompose the volatile organic compounds in the waste gas originally discharged during the process to achieve the purpose of purification. In addition, since the manufacturing industry is usually large-scale production, the amount of waste gas generated during the process increases significantly, making it difficult for the volatile organic compound purification device to handle such a large amount of waste gas within a certain period of time, resulting in a decrease in the overall working efficiency of the volatile organic compound purification device.
[0004] Therefore, there is still room for improvement in the existing volatile organic compound purification device. How to improve the efficiency of decomposing volatile organic compounds is a technical issue that the relevant industry is currently focusing on. SUMMARY
[0005] In view of the above, the purpose of the utility model is to provide a volatile organic compound purification device that improves the efficiency of decomposing volatile organic compounds by heating and decomposing waste gas.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a volatile organic compound purification device, define a first axial and a second axial, the first axial is perpendicular to the second axial, the volatile organic compound purification device includes a casing, a gas inlet pipe and a gas outlet pipe, at least one heating module and at least one catalyst module, wherein the casing has opposite two sides in the first axial, the casing has a containing space inside, the gas inlet pipe and the gas outlet pipe are respectively worn the two sides of the casing, at least one heating module is arranged in the containing space of the casing, at least one heating module includes a plurality of heating units, the plurality of heating units of at least one heating module is arranged along the second axial, at least one catalyst module is arranged in the containing space of the casing and is arranged along the first axial between the gas inlet pipe and the gas outlet pipe with at least one heating module, and at least one catalyst module and at least one heating module are adjacent in the first axial, at least one catalyst module includes a plurality of catalyst units, and the plurality of catalyst units of at least one catalyst module is arranged along the second axial.
[0007] The utility model discloses the effect lies in, through sequentially along the gas inlet pipe of the first axial setting, staggered arrangement at least one heating module and at least one catalyst module, the gas outlet pipe, reach the effect of heating and catalytic decomposition reaction, and then improve the decomposition efficiency of volatile organic compound purification device. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is the perspective drawing of volatile organic compound purification device of a preferred embodiment of the utility model.
[0009] Figure 2 It is the perspective drawing of volatile organic compound purification device of a preferred embodiment of the utility model, shows not including the outer box.
[0010] Figure 3 It is the plan view of volatile organic compound purification device of the preferred embodiment of the utility model.
[0011] Figure 4 It is Figure 3 The sectional view of 4-4 direction.
[0012] Figure 5 It is Figure 4 The enlarged view of A1 in the figure.
[0013] Figure 6 It is Figure 4 The enlarged view of A2 in the figure.
[0014] Figure 7 It is the schematic view of volatile organic compound purification device of the preferred embodiment of the utility model.
[0015] Figure 8 Schematic view of the heating module and the catalyst module according to the preferred embodiment of the present application.
[0016] Figure 9 Schematic view of the heating module and the catalyst module according to the preferred embodiment of the present application.
[0017] Figure 10 Schematic view of the heating module according to the preferred embodiment of the present application.
[0018] Figure 11 Schematic view of the heating unit according to the preferred embodiment of the present application.
[0019] Figure 12 Exploded view of the heating unit according to the preferred embodiment of the present application.
[0020] Figure 13 Schematic view of the catalyst module according to the preferred embodiment of the present application. Figure 12
[0021] Figure 14 Exploded view of the catalyst module according to the preferred embodiment of the present application.
[0022] Figure 15 Schematic view of the catalyst unit according to the preferred embodiment of the present application. Figure 8 Cross-sectional view of the 15-15 direction of the catalyst unit according to the preferred embodiment of the present application.
[0023] Figure 16 Schematic view of the catalyst unit according to the preferred embodiment of the present application.
[0024] Figure 17 Exploded view of the catalyst unit according to the preferred embodiment of the present application.
[0025] Explanation of reference numerals:
[0026] 100: volatile organic compound purification device
[0027] 10: outer box
[0028] 12: box body
[0029] 14: side cover
[0030] 20: housing
[0031] 22: accommodation space
[0032] 30: gas inlet pipe
[0033] 40: gas outlet pipe
[0034] 50: heating module
[0035] 52: first frame
[0036] 522: first docking plate
[0037] 522a: first opening
[0038] 522b: first folded edge
[0039] 54: heating unit
[0040] 542: guard plate
[0041] 544: connecting frame
[0042] 546: heater
[0043] 546a: quartz outer tube
[0044] 546b: connecting terminal
[0045] 548: fixing frame
[0046] 548a: clamping plate
[0047] 548b: buffer pad
[0048] 56: first side plate
[0049] 561: perforation
[0050] 60: catalyst module
[0051] 61: second frame
[0052] 612: second docking plate
[0053] 612a: second opening
[0054] 612b: second folded edge
[0055] 62: catalyst unit
[0056] 622: inner frame
[0057] 622a: first inner plate
[0058] 622b: second inner plate
[0059] 624: catalyst block
[0060] 624a: air passage surface
[0061] 624b: peripheral surface
[0062] 626: buffer assembly
[0063] 626a: first buffer member
[0064] 626b: second buffer member
[0065] 63: second side plate
[0066] 64: thermal insulation material
[0067] 65: pressing plate
[0068] 66: catalyst end plate
[0069] 70: first gas collecting cover
[0070] 71: gas inlet
[0071] 80: second gas collecting cover
[0072] 81: gas outlet
[0073] L1: first axial direction
[0074] L2: second axial direction
[0075] L3: third axial direction DETAILED DESCRIPTION
[0076] To make the present application clearer, preferred embodiments will be described in detail below with reference to the drawings. Please refer to Figures 1 to 3 As shown in the figure, the volatile organic compound purification device 100 of the preferred embodiment of the present application is used to filter a gas containing volatile organic compounds (not shown in the figure), and the volatile organic compound purification device 100 is defined by a first axial direction L1, a second axial direction L2 and a third axial direction L3 which are perpendicular to each other. The volatile organic compound purification device 100 comprises an outer box 10, a shell 20, a gas inlet pipe 30, a gas outlet pipe 40, at least one heating module 50, at least one catalyst module 60, a first gas collecting cover 70 and a second gas collecting cover 80.
[0077] The outer box 10 comprises a box body 12 and two side covers 14 which are oppositely arranged on the box body 12 along the third axial direction L3 and can be flipped relative to the box body 12. The shell 20 is arranged in the box body 12 and has two opposite sides in the first axial direction L1, and the inside of the shell 20 has a containing space 22. The gas inlet pipe 30 and the gas outlet pipe 40 are respectively arranged on the two sides of the box body 12 in the first axial direction L1 and the two sides of the shell 20. The gas inlet pipe 30 is used for inputting the gas, and the gas outlet pipe 40 is used for outputting the gas from which the volatile organic compounds have been filtered.
[0078] As Figure 4 and Figures 7 to 13As shown, the at least one heating module 50 is disposed in the accommodating space 22 of the housing 20 along the first axial direction L1, and the at least one heating module 50 includes a first frame 52, a plurality of heating units 54, and two first side plates 56. In this embodiment, the number of the heating modules 50 is two, but is not limited thereto. In other embodiments, the number of the heating modules 50 can be increased to three or more than three according to requirements. Since the two heating modules 50 are the same in structure, one of the heating modules 50 is taken as an example for description below.
[0079] The first frame 52 includes two first butt plates 522 opposite to each other along the first axial direction L1. Each of the first butt plates 522 has a first opening 522a and a plurality of first folding edges 522b. The two first openings 522a of the first frame 52 are opposite to each other along the first axial direction L1, so that the gas can pass through each of the first openings 522a from the gas inlet pipe 30. The plurality of first folding edges 522b of each of the first butt plates 522 are arranged along the edge of the first opening 522a of each of the first butt plates 522.
[0080] The plurality of heating units 54 of the heating module 50 are arranged in the first frame 52 of the heating module 50 along the second axial direction L2. Each of the heating units 54 includes two protective plates 542, two connecting frames 544, a heater 546, and a fixing frame 548. The two protective plates 542 are opposite to each other along the second axial direction L2. The two connecting frames 544 are opposite to each other along the third axial direction L3 and connect the two protective plates 542. The heater 546 is arranged between the two protective plates 542 and the two connecting frames 544. Therefore, when the gas passes through the two first openings 522a of each of the heating modules 50, the plurality of heaters 546 can heat the gas. In this embodiment, the heater 546 is a heating lamp tube and includes a quartz outer tube 546a and a filament (not shown) in the quartz outer tube 546a, but the heater 546 is not limited to this. The heater 546 extends along the third axial direction L3 and includes two connecting terminals 546b connected to two ends of the filament. The two connecting terminals 546b are opposite to each other along the third axial direction L3 and are respectively arranged in the two connecting frames 544. The two connecting terminals 546b are respectively electrically connected to a wire (not shown) to connect a power supply (not shown) for supplying power to the heater 546. The two fixing frames 548 are arranged between the two protective plates 542 and the two connecting frames 544. Each of the fixing frames 548 includes two clamping plates 548a and two buffer pads 548b. The two clamping plates 548a of each of the heating units 54 clamp the heater 546 of each of the heating units 54 along the second axial direction L2. Each of the buffer pads 548b is arranged between each of the clamping plates 548a and the heater 546. In this embodiment, each of the buffer pads 548b is made of ceramic fiber cotton, but the buffer pad 548b is not limited to this. Therefore, the two clamping plates 548a of each of the heating units 54 do not directly contact the heater 546, the plurality of heaters 546 are not easily affected by vibration, and the service life of the heater 546 is prolonged.
[0081] In this embodiment, the plurality of heating units 54 of each of the heating modules 50 are arranged in the first frame 52 in a stacked manner. Each of the protective plates 542 of each of the heating units 54 contacts a protective plate 542 of an adjacent heating unit 54 along the second axial direction L2, but the protective plate 542 of each of the heating units 54 and the protective plate 542 of the adjacent heating unit 54 can be arranged in a spaced manner in other embodiments.
[0082] The two first side plates 56 are opposite along the third axial direction L3, and the plurality of heating units 54 are located between the two first side plates 56. Each first side plate 56 of the heating module 50 is detachably connected to the first frame 52. When one of the first side plates 56 is detached, the plurality of heating units 54 can be removed from the accommodation space 22 along the third axial direction L3. For example, when the plurality of heating units 54 of one of the heating modules 50 are damaged and need to be replaced, the first side plate 56 of the damaged heating module 50 is first detached, and then the plurality of heating units 54 of the damaged heating module 50 can be removed from the accommodation space 22 along the third axial direction L3 and replaced. This does not require moving all the heating modules 50 at the same time, thereby improving the operation convenience of the volatile organic compound purification device 100. Each first side plate 56 comprises a plurality of perforations 561. The plurality of perforations 561 of each heating module 50 are arranged along the second axial direction L2 and correspond to the plurality of heaters 546 of each heating module 50. Each connection terminal 546b of each heating module 50 passes through a corresponding perforation 561 to electrically connect the wire.
[0083] As shown in Figures 4 to 9 and Figures 14 to 17 The at least one catalyst module 60 is arranged in the accommodation space 22 of the housing 20 and arranged along the first axial direction L1 between the gas inlet pipe 30 and the gas outlet pipe 40 together with the at least one heating module 50. The at least one catalyst module 60 is adjacent to the at least one heating module 50 along the first axial direction L1. In this embodiment, the at least one catalyst module 60 and the at least one heating module 50 are staggered along the first axial direction L1 between the gas inlet pipe 30 and the gas outlet pipe 40, but the disclosure is not limited thereto. The at least one catalyst module 60 comprises a second frame 61, a plurality of catalyst units 62, two second side plates 63, two thermal insulation materials 64, two pressing plates 65, and a catalyst end plate 66. In this embodiment, the number of the at least one catalyst module 60 is two, but the disclosure is not limited thereto. In other embodiments, the number of the catalyst module 60 can be increased to three or more than three according to requirements, as long as the number of the at least one catalyst module 60 corresponds to the number of the at least one heating module 50. Since each catalyst module 60 has the same structure, one of the catalyst modules 60 is taken as an example for description. Therefore, the gas can sequentially pass through one heating module 50, one catalyst module 60, another heating module 50, and another catalyst module 60, so as to be heated and catalytically decomposed by the two heating modules 50 and the two catalyst modules 60, thereby improving the decomposition efficiency of the volatile organic compound purification device 100.
[0084] The second frame 61 comprises two second abutting plates 612 opposite along the first axial direction L1, each of the second abutting plates 612 has a second opening 612a and a plurality of second folding edges 612b, the two second openings 612a of each of the second frame 61 are opposite along the first axial direction L1, each of the first openings 522a of the first abutting plate 522 corresponds to the second opening 612a of the adjacent second abutting plate 612, and the plurality of second folding edges 612b of each of the second abutting plate 612 are arranged along the edge of the second opening 612a of each of the second abutting plate 612, and each of the heating modules 50 is abutted against the plurality of second folding edges 612b of the second abutting plate 612 of the adjacent catalyst module 60 through the plurality of first folding edges 522b of the first abutting plate 522, so as to avoid the formation of a joint between each of the first openings 522a and the adjacent second openings 612a, and thus when the gas passes through a first opening 522a of each of the heating modules 50 and enters the adjacent second opening 612a, the gas can be concentrated to pass through the first opening 522a and enter the adjacent second opening 612a, so as to improve the decomposition efficiency of the volatile organic compound purification device 100.
[0085] The plurality of catalyst units 62 are arranged along the second axial direction L2 and disposed in the second frame 61 of each of the catalyst modules 60, each of the catalyst units 62 comprises an inner frame 622, a plurality of catalyst blocks 624, and a buffer assembly 626, the inner frame 622 comprises two first inner plates 622a opposite along the third axial direction L3 and two second inner plates 622b connected to the two first inner plates 622a and opposite along the second axial direction L2, the plurality of catalyst blocks 624 of each of the catalyst units 62 are arranged along the third axial direction L3 and disposed in each of the inner frames 622, each of the catalyst blocks 624 has two air passages 624a opposite along the first axial direction L1 and a plurality of peripheral surfaces 624b, and a plurality of air holes are formed between the two air passages 624a of each of the catalyst blocks 624, and the plurality of air holes extend along the first axial direction L1. In this embodiment, each of the catalyst blocks 624 comprises a ceramic block and a catalyst material, and the catalyst material is plated on the surface of the ceramic block, such as the surface of each of the air passages 624a, each of the peripheral surfaces 624b, and each of the air holes. The catalyst material can decompose the volatile organic compounds in the gas at a reaction temperature (for example, 300°C). In addition to being able to heat the gas, the plurality of heaters 546 can also heat the adjacent catalyst blocks 624 to the reaction temperature, and in this embodiment, the catalyst material may, for example, be platinum or palladium, but is not limited thereto.
[0086] After the gas passes through a second opening 612a of the catalyst module 60, the gas first passes through the two gas passages 624a of each catalyst block 624, and then passes through another second opening 612a of the catalyst module 60; two of the peripheral surfaces 624b are opposite along the second axial direction L2, and the other two of the peripheral surfaces 624b are opposite along the third axial direction L3; the buffer assembly 626 is arranged in the inner frame 622 and surrounds the peripheral surfaces 624b of each catalyst block 624, and the buffer assembly 626 includes a plurality of first buffer members 626a and two second buffer members 626b; the first buffer members 626a and the catalyst blocks 624 are staggered along the third axial direction L3; the two second buffer members 626b are opposite along the second axial direction L2, and each second buffer member 626b is located between the peripheral surfaces 624b of adjacent catalyst blocks 624 and an adjacent second inner plate 622b; in this embodiment, the material of the buffer assembly 626 is ceramic fiber cotton, but is not limited thereto; thus, the inner frame 622 is prevented from directly contacting the catalyst blocks 624, the catalyst blocks 624 are less likely to be affected by vibration, and the service life of the catalyst blocks 624 is prolonged.
[0087] In this embodiment, the catalyst units 62 of the catalyst module 60 are arranged in the second frame 61 in a stacked manner, and the second inner plate 622b of each catalyst unit 62 contacts the second inner plate 622b of an adjacent catalyst unit 62 along the second axial direction L2, but is not limited thereto; in other embodiments, the second inner plate 622b of each catalyst unit 62 and the second inner plate 622b of an adjacent catalyst unit 62 can be arranged in a spaced manner.
[0088] The second side plates 63 are opposite along the third axial direction L3, the plurality of catalyst units 62 are located between the second side plates 63, the second side plates 63 of each catalyst module 60 are detachably connected to the second frame 61; the heat insulating materials 64 and the pressing plates 65 are arranged between the plurality of catalyst units 62 and the second side plates 63, the pressing plates 65 are located between the heat insulating materials 64 and the second side plates 63, the second side plates 63 press the heat insulating materials 64 through the pressing plates 65 to achieve a better sealing effect, so that the gas passing through the catalyst modules 60 cannot leak from the gap between the second side plates 63 and the second frame 61; the catalyst end plate 66 is arranged between one heat insulating material 64 and the plurality of catalyst units 62 of the catalyst module 60 and is aligned with the plurality of catalyst units 62; for example, when the plurality of catalyst units 62 of one catalyst module 60 are damaged and need to be replaced, first sequentially disassemble one second side plate 63, one pressing plate 65 and one heat insulating material 64, or sequentially disassemble another second side plate 63, another pressing plate 65, another heat insulating material 64 and the catalyst end plate 66, then the plurality of catalyst units 62 of the damaged catalyst module 60 can be removed along the third axial direction L3 from the accommodating space 22 and replaced, without the need to move all the at least one catalyst module 60 or even the at least one heating module 50 at the same time, so as to improve the operation convenience of the volatile organic compound purification device 100.
[0089] As Figures 4 to 6As shown, the first and second gas collecting covers 70 and 80 are disposed in the accommodating space 22 of the housing 20 and are opposite along the first axial direction L1, the first gas collecting cover 70 is recessed towards the gas inlet pipe 30 and has a gas inlet 71, the second gas collecting cover 80 is recessed towards the gas outlet pipe 40 and has a gas outlet 81, the gas inlet pipe 30 communicates with the gas inlet 71, and the gas outlet pipe 40 communicates with the gas outlet 81, wherein the first gas collecting cover 70 is adjacent to the heating module 50, and the first gas collecting cover 70 abuts against the first plurality of folded edges 522b of the first abutting plate 522 adjacent to the heating module 50 to avoid forming a joint between the first gas collecting cover 70 and the adjacent first opening 522a, the second gas collecting cover 80 is adjacent to the catalyst module 60, and the second gas collecting cover 80 abuts against the second plurality of folded edges 612b of the second abutting plate 612 adjacent to the catalyst module 60 to avoid forming a joint between the second gas collecting cover 80 and the adjacent second opening 612a, therefore, when the gas enters from the gas inlet pipe 30 and the gas inlet 71 in sequence, the structure of the first gas collecting cover 70 recessed towards the gas inlet pipe 30 enables the gas to be limited within the range corresponding to the first opening 522a, thereby enabling the gas to be concentrated through an adjacent first opening 522a, and the structure of the second gas collecting cover 80 recessed towards the gas outlet pipe 40 enables the gas to be limited within the range corresponding to the second opening 612a, thereby enabling the gas to be concentrated to the gas outlet 81, so as to improve the decomposition efficiency of the volatile organic compound purification device 100.
[0090] In summary, in the present embodiment, the volatile organic compound purification device 100 is provided with the two heating modules 50 and the two catalyst modules 60 staggered along the first axial direction L1, so that the gas sequentially passes through the gas inlet pipe 30, the gas inlet 71, one heating module 50, one catalyst module 60, another heating module 50, another catalyst module 60, the gas outlet 81, and the gas outlet pipe 40 along the first axial direction L1, and is heated and catalytically decomposed by the two heating modules 50 and the two catalyst modules 60. In addition, the gas is limited to the range corresponding to the first opening 522a and the second opening 612a by the first gas collecting cover 70 and the second gas collecting cover 80, so that the gas can be concentrated through the adjacent first opening 522a and reach the gas outlet 81, and the gas can be concentrated through the first gas collecting cover 70 and the adjacent first opening 522a, the first opening 522a and the adjacent second opening 612a, and the second gas collecting cover 80 and the adjacent second opening 612a, so as to improve the decomposition efficiency of the volatile organic compound purification device 100.
[0091] The above merely describes preferred and feasible embodiments of the present application, and equivalent changes made according to the description and claims of the present application should be included in the patent scope of the present application.
Claims
1. A volatile organic compound purification apparatus defining a first axis and a second axis, said first axis being perpendicular to said second axis, characterized by, The volatile organic compound purification device comprises: a housing having opposite two sides in the first axial direction, the housing having an accommodating space inside; an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively arranged through the two sides of the housing; at least one heating module arranged in the accommodating space of the housing, the at least one heating module comprising a plurality of heating units arranged along the second axial direction; at least one catalyst module arranged in the accommodating space of the housing and arranged along the first axial direction between the air inlet pipe and the air outlet pipe and adjacent to the at least one heating module along the first axial direction, the at least one catalyst module comprising a plurality of catalyst units arranged along the second axial direction.
2. The volatile organic compound purification device of claim 1, wherein The at least one heating module comprises two heating modules, and the at least one catalyst module comprises two catalyst modules, the two catalyst modules and the two heating modules being staggered along the first axial direction between the air inlet pipe and the air outlet pipe.
3. The volatile organic compound purification device of claim 1, wherein A third axial direction is defined, the third axial direction being perpendicular to the first axial direction and the second axial direction; an outer box comprising a box body and two side covers, the housing being arranged in the box body, the air inlet pipe and the air outlet pipe being arranged through the two sides of the box body along the first axial direction, and the two side covers being arranged opposite to each other along the third axial direction.
4. The volatile organic compound purification device of claim 1, wherein The at least one heating module comprises a first frame, the plurality of heating units of the at least one heating module being arranged in the first frame of the at least one heating module, the first frame comprising two first abutting plates opposite to each other along the first axial direction, each of the first abutting plates having a first opening, and the two first openings of the first frame being opposite to each other along the first axial direction; the at least one catalyst module comprises a second frame, the plurality of catalyst units of the at least one catalyst module being arranged in the second frame of the at least one catalyst module, the second frame comprising two second abutting plates opposite to each other along the first axial direction, each of the second abutting plates having a second opening, and the two second openings of the second frame being opposite to each other along the first axial direction; wherein the at least one heating module abuts against the second abutting plate of the adjacent catalyst module through the first abutting plate, and the first opening of the first abutting plate corresponds to the second opening of the adjacent second abutting plate.
5. The volatile organic compound purification device of claim 4, wherein, Each of the first abutting plates has a plurality of first folded edges arranged along the edge of the first opening of each of the first abutting plates; each of the second abutting plates has a plurality of second folded edges arranged along the edge of the second opening of each of the second abutting plates; wherein the at least one heating module abuts against the second abutting plate of the adjacent catalyst module through the plurality of first folded edges of the first abutting plate and the plurality of second folded edges of the second abutting plate.
6. The volatile organic compound purification device of claim 4, wherein, The plurality of heating units of the at least one heating module are arranged in a stacked manner in the first frame.
7. The volatile organic compound purification device of claim 4, wherein A third axial direction is defined, which is perpendicular to the first axial direction and the second axial direction; each of the heating units comprises two guard plates opposite to each other along the second axial direction and a heater arranged between the two guard plates, the heater comprising two connection terminals opposite to each other along the third axial direction.
8. The volatile organic compound purification device of claim 7, wherein, Each of the heating units comprises two fixing frames arranged between the two guard plates, each of the fixing frames comprising two clamping plates, the two clamping plates of each of the heating units clamping the heater of each of the heating units.
9. The volatile organic compound purification device of claim 7, wherein, The at least one heating module comprises two first side plates opposite to each other along the third axial direction, the plurality of heating units being located between the two first side plates, a first side plate of the at least one heating module being detachably connected to the first frame, wherein after the first side plate is detached, the plurality of heating units can be moved out of the accommodation space along the third axial direction; each of the first side plates comprises a plurality of through holes, each of the through holes of the at least one heating module being arranged along the second axial direction and corresponding to each of the heaters of the at least one heating module, each of the connection terminals of the at least one heating module passing through the corresponding through hole.
10. The volatile organic compound purification device of claim 4, wherein The plurality of catalyst units of the at least one catalyst module are arranged in a stacked manner in the second frame.
11. The volatile organic compound purification device of claim 4, wherein, A third axial direction is defined, which is perpendicular to the first axial direction and the second axial direction; each of the catalyst units comprises an inner frame, a plurality of catalyst blocks arranged in the inner frame, each of the catalyst blocks having two air passage faces opposite to each other along the first axial direction and a plurality of peripheral surfaces, and a buffer assembly surrounding the plurality of peripheral surfaces of each of the catalyst blocks.
12. The volatile organic compound purification device of claim 11, wherein, The at least one catalyst module comprises two second side plates opposite to each other along the third axial direction, the plurality of catalyst units being located between the two second side plates; a second side plate of the at least one catalyst module is detachably connected to the second frame, and after the second side plate is detached, the plurality of catalyst units can be moved out of the accommodation space along the third axial direction.
13. The volatile organic compound purification device of claim 12, wherein, The at least one catalyst module comprises two thermal insulation materials, each of the thermal insulation materials being located between the plurality of catalyst units and each of the second side plates.
14. The volatile organic compound purification device of claim 13, wherein, The at least one catalyst module comprises two pressing plates, each of the pressing plates being located between each of the thermal insulation materials and each of the second side plates, and each of the second side plates pressing each of the thermal insulation materials through each of the pressing plates.
15. The volatile organic compound purification device of claim 5, wherein, The first and second gas collecting covers are arranged in the accommodating space of the shell and oppositely along the first axis, the first gas collecting cover is recessed towards the air inlet pipe and has an air inlet, the second gas collecting cover is recessed towards the air outlet pipe and has an air outlet, the air inlet pipe communicates with the air inlet, and the air outlet pipe communicates with the air outlet; the first gas collecting cover is adjacent to the heating module, and the first gas collecting cover abuts against the first plurality of folded edges of the first abutting plate of the adjacent heating module; the second gas collecting cover is adjacent to the catalyst module, and the second gas collecting cover abuts against the second plurality of folded edges of the second abutting plate of the adjacent catalyst module.