VOCs catalytic combustion integrated device
By combining a pretreatment filter, a zeolite rotor purification device, and a desorption and regeneration device, the problem of low purification efficiency in existing VOCs waste gas treatment devices is solved, achieving efficient, stable, and economical waste gas purification results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-17
AI Technical Summary
Existing VOCs waste gas treatment devices have low purification efficiency and limited treatment methods.
The system employs a combination of pretreatment filters, zeolite rotary purification equipment, desorption and regeneration equipment, and a PLC control system to perform multi-stage purification of waste gas through particulate filters, zeolite adsorption beds, and catalytic combustion beds.
It achieves efficient, stable, safe and economical VOCs waste gas purification, and improves purification efficiency.
Smart Images
Figure CN223995750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of VOCs waste gas treatment technology, specifically to an integrated VOCs catalytic combustion device. Background Technology
[0002] VOCs (volatile organic compounds) refer to the forms in which volatile organic compounds exist in the atmosphere. VOCs are various organic compounds with boiling points between 50℃ and 260℃ under normal pressure. These compounds are easily volatilized at room temperature and pose certain hazards to the environment and human health.
[0003] However, current VOCs waste gas treatment devices may suffer from low purification efficiency because the existing VOCs waste gas treatment methods are relatively simple. Therefore, an integrated VOCs catalytic combustion device is invented. Summary of the Invention
[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0005] An integrated VOCs catalytic combustion device includes a pretreatment filter, a zeolite rotor purification device, a desorption and regeneration device, a system fan, and a PLC control system. The pretreatment filter receives external treated gas at its inlet port. The pretreatment filter is connected to the zeolite rotor purification device. The zeolite rotor purification device is connected to the desorption and regeneration device via a pipeline. The system fan is connected to both the zeolite rotor purification device and the desorption and regeneration device. The desorption and regeneration device and the system fan are connected to the PLC control system via wires.
[0006] As a preferred embodiment of the VOCs catalytic combustion integrated device described in this utility model, the pretreatment filter is provided with a particulate filter, which has a three-layer structure; the first layer is a G4 grade pre-filter for filtering dust particles larger than 5μm; the second layer is an F7 grade medium-efficiency filter for capturing dust and various suspended matter of 1-5μm; and the third layer is an F9 grade high-efficiency filter for capturing particulate dust and various suspended matter smaller than 0.5μm.
[0007] As a preferred embodiment of the VOCs catalytic combustion integrated device described in this utility model, the zeolite rotor purification device is equipped with a zeolite adsorption bed.
[0008] As a preferred embodiment of the VOCs catalytic combustion integrated device described in this utility model, the desorption and regeneration equipment includes a heat exchanger and a catalytic combustion device. The catalytic combustion device is equipped with a catalytic combustion bed, and a dedicated explosion vent is provided at the top of the catalytic combustion bed. The catalytic combustion bed is located in the catalytic combustion chamber. The catalytic combustion chamber is connected to a zeolite rotor purification device through a conveying pipe. A control valve is provided on the conveying pipe. The catalytic combustion device is connected to a cooling system through an air supply pipe. The catalytic combustion device is connected to the zeolite rotor purification device through a second pipe. The catalytic combustion device is connected to the input end of the heat exchanger through a second conveying pipe. The output end of the heat exchanger is connected to the second pipe through a third conveying pipe.
[0009] As a preferred embodiment of the VOCs catalytic combustion integrated device of this utility model, the system fan includes a desorption fan, and the system fan adopts a VOC-matching fan.
[0010] As a preferred embodiment of the VOCs catalytic combustion integrated device described in this utility model, the PLC control system is a Siemens PLC programmable control system, and an electrical control cabinet containing a PLC and a frequency converter is provided with a cabinet air conditioner.
[0011] As a preferred embodiment of the VOCs catalytic combustion integrated device described in this utility model, wherein: a desorption fan is connected to the second pipeline, a temperature probe is installed at the inlet of the second conveying pipeline, a temperature probe is installed at the port of the second pipeline connected to the desorption and regeneration equipment, a temperature probe is installed at the output port of the desorption and regeneration equipment, and the temperature probes one, two, and three are connected to the PLC control system via wires.
[0012] Compared with existing technologies:
[0013] The equipment is automatically controlled and monitored in real time by a PLC control system. The exhaust gas is introduced into the equipment and treated by a particulate filter, a zeolite rotor purification device, and a desorption and regeneration device. The exhaust gas is then discharged after purification. The purification efficiency is high, the system is stable, safe, reliable, and relatively economical. Attached Figure Description
[0014] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a cross-sectional schematic diagram of the desorption and regeneration equipment of this utility model.
[0016] In the diagram: 1. Pretreatment filter; 2. Zeolite rotor purification equipment; 3. Desorption and regeneration equipment; 4. System fan; 5. PLC control system; 6. Heat exchanger; 7. Catalytic combustion equipment. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0018] This utility model provides an integrated VOCs catalytic combustion device. Please refer to [link / reference]. Figures 1-2 The system includes a pretreatment filter 1, a zeolite rotor purification device 2, a desorption and regeneration device 3, a system fan 4, and a PLC control system 5. The pretreatment filter 1 receives external treatment gas through its inlet port. The pretreatment filter 1 is connected to the zeolite rotor purification device 2. The zeolite rotor purification device 2 is connected to the desorption and regeneration device 3 through a pipeline. The system fan 4 is connected to the zeolite rotor purification device 2 and the desorption and regeneration device 3. The desorption and regeneration device 3 and the system fan 4 are connected to the PLC control system 5 through wires.
[0019] The pretreatment filter 1 contains a particulate filter with a three-layer structure. The first layer is a G4-grade pre-filter for filtering dust particles larger than 5µm; the second layer is an F7-grade medium-efficiency filter for capturing dust and various suspended solids of 1-5µm; and the third layer is an F9-grade high-efficiency filter for capturing particulate dust and various suspended solids smaller than 0.5µm (filtration efficiency ≥ 90%). The density of the three layers increases progressively to achieve high efficiency, low resistance, and large dust holding capacity. When particulate matter passes through the polyester fiber, it traps larger paint mist particles while providing aggregation nuclei for relatively smaller paint mist particles. Its main function is to prevent larger paint mist particles from accumulating in subsequent filter media, thus extending the service life of subsequent filter media.
[0020] The zeolite rotary purification equipment 2 is equipped with a zeolite adsorption bed.
[0021] The desorption and regeneration equipment 3 includes a heat exchanger 6 and a catalytic combustion equipment 7. The catalytic combustion equipment 7 is equipped with a catalytic combustion bed, and a dedicated explosion vent is provided at the top of the catalytic combustion bed. The catalytic combustion bed is located in the catalytic combustion chamber. The catalytic combustion chamber is connected to the zeolite rotor purification equipment 2 through a conveying pipe. A control valve is provided on the conveying pipe. The catalytic combustion equipment 7 is connected to the cooling system through an air supply pipe. The catalytic combustion equipment 7 is connected to the zeolite rotor purification equipment 2 through a second pipe. The catalytic combustion equipment 7 is connected to the input end of the heat exchanger 6 through a second conveying pipe. The output end of the heat exchanger 6 is connected to the second pipe through a third conveying pipe.
[0022] The system fan 4 includes a desorption fan, and the system fan 4 uses a VOC-4000 matching fan.
[0023] PLC control system 5 is a Siemens PLC programmable control system, and is equipped with an electrical control cabinet containing PLC and frequency converter, and a cabinet air conditioner.
[0024] The desorption fan is connected to the second pipeline. Temperature probe one is installed at the inlet of the second pipeline. Temperature probe two is installed at the port where the second pipeline connects to the desorption and regeneration equipment 3. Temperature probe three is installed at the output port of the desorption and regeneration equipment 3. Temperature probe one, temperature probe two and temperature probe three are connected to the PLC control system 5 through wires.
[0025] After the exhaust gas enters the pretreatment filter 1 through the inlet port and is filtered by the particulate filter, it enters the zeolite rotor purification device 2 and is adsorbed and purified by the zeolite adsorption bed. Then, it enters the desorption and regeneration device 3 and is combusted and purified by the catalytic combustion device 7. Thus, VOCs exhaust gas can be treated.
[0026] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A VOCs catalytic combustion integrated device, comprising a pretreatment filter (1), a zeolite rotary purifier (2), a desorption regeneration device (3), a system fan (4) and a PLC control system (5), characterized in that, The air inlet port of the pretreatment filter (1) inputs external treatment gas, the pretreatment filter (1) is connected with a zeolite rotary purifier (2), the zeolite rotary purifier (2) is connected with a desorption regeneration device (3) through a pipeline one, the system fan (4) is connected with the zeolite rotary purifier (2) and the desorption regeneration device (3), and the desorption regeneration device (3) and the system fan (4) are connected with a PLC control system (5) through wires.
2. The integrated VOCs catalytic combustion device according to claim 1, wherein, The pretreatment filter (1) is internally provided with a particulate filter, and the particulate filter is provided with a three-layer structure; the first layer is a G4 primary filter, which is used for filtering dust particles greater than 5 um; the second layer is a F7 medium filter, which is used for capturing dust and various suspensions of 1-5 um; and the third layer is a F9 high-efficiency filter, which is used for capturing particulate dust and various suspensions below 0.5 um.
3. The integrated VOCs catalytic combustion device according to claim 1, wherein, The zeolite rotary purifier (2) is internally provided with a zeolite adsorption bed.
4. The integrated VOCs catalytic combustion device according to claim 1, wherein, The desorption regeneration device (3) comprises a heat exchanger (6) and a catalytic combustion device (7), the catalytic combustion device (7) is internally provided with a catalytic combustion bed, a special explosion vent is arranged on the top of the catalytic combustion bed, the catalytic combustion bed is arranged in a catalytic combustion chamber, the catalytic combustion chamber is connected with the zeolite rotary purifier (2) through a conveying pipeline, a control valve is arranged on the conveying pipeline, the catalytic combustion device (7) is connected with a cold supplement system through a wind conveying pipeline, the catalytic combustion device (7) is connected with the zeolite rotary purifier (2) through a pipeline two, the catalytic combustion device (7) is connected with an input end of the heat exchanger (6) through a conveying pipeline two, and an output end of the heat exchanger (6) is connected with the pipeline two through a conveying pipeline three.
5. The integrated VOCs catalytic combustion device according to claim 1, wherein, The system fan (4) comprises a desorption fan, and the system fan (4) adopts a VOC-4000 matching fan.
6. The integrated VOCs catalytic combustion device according to claim 1, wherein, The PLC control system (5) is a Siemens PLC programmable control system, and an electric control cabinet configuration cabinet air conditioner is arranged.
7. The integrated VOCs catalytic combustion device according to claim 4, wherein A desorption fan is connected with the pipeline two, a temperature probe one is arranged on the inlet of the conveying pipeline two, a temperature probe two is arranged on the port of the desorption regeneration device (3) connected with the pipeline two, a temperature probe three is arranged on the output port of the desorption regeneration device (3), and the temperature probe one, the temperature probe two and the temperature probe three are connected with the PLC control system (5) through wires.