Waste gas treatment equipment for petrochemical industry
By employing water curtain nozzles and a circulating water pump system in petrochemical waste gas treatment equipment, combined with activated carbon filters, the problem of the inability to recycle desulfurizing agents has been solved, achieving comprehensive waste gas treatment and energy conservation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河北华飞工程设计有限公司
- Filing Date
- 2025-02-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing petrochemical waste gas treatment equipment cannot achieve the recycling of desulfurizing agents, and the waste gas treatment is not comprehensive enough, resulting in energy waste and environmental pollution.
The desulfurization process uses a first water pump nozzle to form a water curtain, and a second water pump enables the desulfurizing agent to be recycled. At the same time, an activated carbon filter is used to remove odors. The activated carbon filter is replaceable to ensure comprehensive treatment.
It enables the recycling of desulfurizing agents, saves energy, ensures comprehensive waste gas treatment and environmental protection, and improves the practicality and safety of the equipment.
Smart Images

Figure CN224292912U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of petrochemical technology, specifically to waste gas treatment equipment for petrochemical applications. Background Technology
[0002] Petrochemicals, also known as the petrochemical industry, refers to the sector of the chemical industry that uses petroleum as a raw material to produce chemicals, and in a broader sense, it also includes natural gas chemicals. The rapid development of petrochemicals has shifted the production of many chemicals from traditionally using coal and agricultural and forestry products as raw materials to using petroleum and natural gas. Petrochemicals have become a backbone industry of the chemical industry, occupying a vital position in the national economy. Currently, common petrochemical processes generate large amounts of waste gas during refining. While developing the economy, it is also crucial to pay attention to environmental protection; therefore, waste gas treatment plays a vital role in the petrochemical industry.
[0003] Chinese patented invention CN216755964U discloses a waste gas treatment device for petrochemical industries, comprising a housing, an inlet pipe fixedly connected to one side of the housing, a sliding groove inside the housing, a slider movably connected inside the sliding groove, an adsorption filter fixedly connected to one side of the slider, a storage box fixedly connected to the top of the housing, a feed pipe movably connected to one side of the storage box, and a discharge pipe fixedly connected to one side of the storage box. This waste gas treatment device for petrochemical industries exhibits good purification effect, solving the problem of air and environmental pollution caused by incomplete purification in general petrochemical waste gas treatment equipment. It effectively improves the working efficiency and safety of the device, ensuring the personal safety of personnel and the environment, and increases the possibility of resource recycling, thereby further enhancing the practicality of the device.
[0004] However, the device still has some problems. In actual use, although the desulfurizing agent can be sprayed from the nozzles through the water pump to desulfurize the waste gas, the desulfurizing agent cannot be recycled, thus failing to achieve the effect of energy saving. At the same time, when the desulfurizing agent is sprayed through the nozzles, the waste gas can easily pass through the gaps between the nozzles, failing to achieve comprehensive desulfurization of the waste gas. In addition, the activated carbon filter cannot be removed and replaced after long-term use. Therefore, we propose a waste gas treatment equipment for petrochemical industry to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide waste gas treatment equipment for petrochemical industry to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment device for petrochemicals, comprising a housing, an inlet pipe connected and fixed to the left side of the housing, a storage tank fixedly connected to the top of the housing, a first water pump fixedly connected to the top of the housing, the inlet of the first water pump extending into the storage tank, the outlet of the first water pump connected and fixed to a rectangular pipe, the bottom of the rectangular pipe connected and fixed to multiple nozzles, and two U-shaped plates fixedly connected to the inner walls of both sides of the housing, the front inner wall of the U-shaped plates and... A triangular plate is fixedly connected between the rear inner walls. An air pump is fixedly connected to the right side of the box. The air inlet of the air pump extends into the box. The air outlet of the air pump is connected to and fixed to a connecting box. Two activated carbon filters are slidably connected to the inner wall of the connecting box. A second water pump is fixedly connected to the rear side of the box. The water inlet of the second water pump extends into the box. The water outlet of the second water pump is connected to and fixed to an L-shaped pipe. The rear end of the L-shaped pipe is connected to and fixed to the rear side of the storage box. A first filter is slidably connected to the box.
[0007] More preferably, a horizontal plate is fixedly connected to the left inner wall of the box, and sliders are fixedly connected to both sides of the first filter screen. Sliding grooves are provided on both inner walls of the box, and the sliders are slidably connected to the corresponding sliding grooves.
[0008] More preferably, the top of the storage tank is connected to and fixed with an inlet pipe, the top of the activated carbon filter extends to the top of the connecting box, and a rectangular block is fixedly connected to the left side of the activated carbon filter. The rectangular block is threadedly connected to the connecting box by bolts.
[0009] More preferably, an exhaust pipe is connected and fixed to the right side of the connecting box, and two support seats are fixedly connected to the bottom of the box, with two rollers rotatably connected to the bottom of the support seats.
[0010] More preferably, a drain pipe is connected and fixed to the right side of the box, and a door panel is rotatably connected to the front side of the box.
[0011] More preferably, a handle is fixedly connected to the front side of the door panel, and a support plate is fixedly connected to the right side of the box body.
[0012] More preferably, the top of the support plate is fixedly connected to the bottom of the connecting box.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The first filter screen of this utility model filters particulate impurities in the exhaust gas. When the first water pump is started, the nozzle sprays out the desulfurizing agent to form two water curtains. The desulfurizing agent desulfurizes the exhaust gas. When the second water pump is started, the desulfurizing agent in the tank is extracted and discharged into the storage tank, achieving the effect of recycling the desulfurizing agent. The two activated carbon filters remove odors from the exhaust gas. The exhaust gas is discharged through the exhaust pipe. The activated carbon filter screen can be removed and replaced by rotating the bolt in the opposite direction. This allows for comprehensive desulfurization of the exhaust gas, recycling of the desulfurizing agent, energy saving, and easy removal and replacement of the activated carbon filter screen. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the box body in this utility model;
[0016] Figure 3 This is a rear view structural diagram of the box body in this utility model;
[0017] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the U-shaped plate in this utility model;
[0018] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the connecting box in this utility model.
[0019] In the diagram: 1. Box body; 2. Air inlet pipe; 3. Storage box; 4. First water pump; 5. Rectangular tube; 6. Nozzle; 7. U-shaped plate; 8. Triangular plate; 9. Air pump; 10. Connecting box; 11. Activated carbon filter; 12. Second water pump; 13. L-shaped tube; 14. Horizontal plate; 15. First filter; 16. Liquid inlet pipe; 17. Bolt; 18. Exhaust pipe; 19. Support base; 20. Roller; 21. Drain pipe; 22. Door panel; 23. Support plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example
[0022] Please see Figures 1-5This utility model provides a technical solution: a waste gas treatment device for petrochemical industry, including a housing 1. An air inlet pipe 2 is connected and fixed to the left side of the housing 1. A storage tank 3 is fixedly connected to the top of the housing 1. A first water pump 4 is fixedly connected to the top of the housing 1. The inlet of the first water pump 4 extends into the storage tank 3. The outlet of the first water pump 4 is connected and fixed to a rectangular pipe 5. Multiple nozzles 6 are connected and fixed to the bottom of the rectangular pipe 5. Two U-shaped plates 7 are fixedly connected to the inner walls of both sides of the housing 1. A triangular plate 8 is fixedly connected between the front and rear inner walls of the U-shaped plates 7. An air pump 9 is fixedly connected to the right side of the housing 1. The air inlet of the air pump 9 extends into the housing 1. The outlet of the air pump 9 is connected and fixed to a connecting box 10. Two activated carbon filters 11 are slidably connected to the inner wall of the connecting box 10. A second water pump 12 is fixedly connected to the rear side of the housing 1. The inlet of pump 12 extends into the tank 1. The outlet of the second pump 12 is connected to and fixed with an L-shaped pipe 13. The rear end of the L-shaped pipe 13 is connected to and fixed with the rear side of the storage tank 3. A first filter screen 15 is slidably connected inside the tank 1. The first filter screen 15 filters particulate impurities in the exhaust gas. When the first pump 4 is started, the nozzle 6 sprays out the desulfurizing agent to form two water curtains. The desulfurizing agent desulfurizes the exhaust gas. When the second pump 12 is started, the desulfurizing agent in the tank 1 is extracted and discharged into the storage tank 3, achieving the effect of recycling the desulfurizing agent. Two activated carbon filters 11 remove odors from the exhaust gas. The exhaust gas is discharged through the exhaust pipe 18. The activated carbon filters 11 can be removed and replaced by rotating the bolt 17 in the opposite direction. The exhaust gas can be completely desulfurized, the desulfurizing agent can be recycled, and the activated carbon filters 11 can be removed and replaced.
[0023] In this embodiment, specifically: a horizontal plate 14 is fixedly connected to the left inner wall of the box 1, and sliders are fixedly connected to both sides of the first filter screen 15. Slide grooves are opened on both inner walls of the box 1, and the sliders are slidably connected to the corresponding slide grooves.
[0024] In this embodiment, specifically: the top of the storage tank 3 is connected to and fixed with an inlet pipe 16, the top of the activated carbon filter 11 extends to the top of the connecting box 10, and a rectangular block is fixedly connected to the left side of the activated carbon filter 11. The rectangular block is threadedly connected to the connecting box 10 by bolts 17.
[0025] In this embodiment, specifically: an exhaust pipe 18 is connected and fixed to the right side of the connecting box 10, and two support seats 19 are fixedly connected to the bottom of the box body 1, with two rollers 20 rotatably connected to the bottom of the support seats 19.
[0026] In this embodiment, specifically: a drain pipe 21 is connected and fixed on the right side of the box body 1, and a door panel 22 is rotatably connected to the front side of the box body 1;
[0027] In this embodiment, specifically: a handle is fixedly connected to the front side of the door panel 22, and a support plate 23 is fixedly connected to the right side of the box body 1;
[0028] In this embodiment, specifically, the top of the support plate 23 is fixedly connected to the bottom of the connecting box 10.
[0029] In operation, this utility model works as follows: During use, the desulfurizing agent is added to the storage tank 3 through the inlet pipe 16. The air pump 9 is started, and exhaust gas is discharged into the tank 1 through the air inlet pipe 2. The first filter screen 15 filters particulate impurities in the exhaust gas. Simultaneously, the first water pump 4 is started, drawing out the desulfurizing agent and discharging it into the nozzle 6 through the rectangular pipe 5. The nozzle 6 sprays the desulfurizing agent into the U-shaped plate 7. As the amount of desulfurizing agent in the U-shaped plate 7 increases, it slides over the inclined surface of the triangular plate 8. At this time, under the action of the two U-shaped plates 7, two water curtains are formed. When the exhaust gas passes through the water curtain, the desulfurizing agent desulfurizes the exhaust gas. Under the action of gravity, the desulfurizing agent falls into the tank 1, and then... The second water pump 12 is started, which extracts the desulfurizing agent from the tank 1 and discharges it into the storage tank 3 through the L-shaped pipe 13, thus achieving the effect of recycling the desulfurizing agent. The air pump 9 discharges the waste gas into the connecting box 10. The two activated carbon filters 11 remove the odor from the waste gas, and the waste gas is discharged through the exhaust pipe 18. When the activated carbon filter 11 needs to be replaced, the bolt 17 is rotated in the opposite direction to separate it from the connecting box 10. At this time, the activated carbon filter 11 is moved upward to remove it for replacement. This constitutes a waste gas treatment equipment for petrochemical industry, which can comprehensively desulfurize waste gas, recycle the desulfurizing agent to achieve the effect of saving energy, and remove the activated carbon filter 11 for replacement.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waste gas treatment device for petrochemical industry, comprising a housing (1), characterized in that: An air inlet pipe (2) is connected to and fixed on the left side of the box (1). A storage box (3) is fixedly connected to the top of the box (1). A first water pump (4) is fixedly connected to the top of the box (1). The inlet of the first water pump (4) extends into the storage box (3). A rectangular pipe (5) is connected to and fixed to the outlet of the first water pump (4). Multiple nozzles (6) are connected to and fixed to the bottom of the rectangular pipe (5). Two U-shaped plates (7) are fixedly connected to the inner walls of both sides of the box (1). A triangular plate (8) is fixedly connected between the front inner wall and the rear inner wall of the U-shaped plate (7). The right side of the box (1) An air pump (9) is fixedly connected to the side. The air inlet of the air pump (9) extends into the box (1). The air outlet of the air pump (9) is connected to and fixed to a connecting box (10). Two activated carbon filters (11) are slidably connected to the inner wall of the connecting box (10). A second water pump (12) is fixedly connected to the rear side of the box (1). The water inlet of the second water pump (12) extends into the box (1). The water outlet of the second water pump (12) is connected to and fixed to an L-shaped pipe (13). The rear end of the L-shaped pipe (13) is connected to and fixed to the rear side of the storage box (3). A first filter (15) is slidably connected inside the box (1).
2. The waste gas treatment equipment for petrochemical industry according to claim 1, characterized in that: A horizontal plate (14) is fixedly connected to the inner left side of the box (1), and sliders are fixedly connected to both sides of the first filter screen (15). Sliding grooves are provided on both sides of the inner wall of the box (1), and the sliders are slidably connected to the corresponding sliding grooves.
3. The waste gas treatment equipment for petrochemical industry according to claim 2, characterized in that: The top of the storage tank (3) is connected to and fixed with an inlet pipe (16). The top of the activated carbon filter (11) extends to the top of the connecting box (10). A rectangular block is fixedly connected to the left side of the activated carbon filter (11). The rectangular block is threadedly connected to the connecting box (10) by bolts (17).
4. The waste gas treatment equipment for petrochemical industry according to claim 3, characterized in that: The right side of the connecting box (10) is connected to and fixed with an exhaust pipe (18), and the bottom of the box (1) is fixedly connected with two support seats (19), and the bottom of the support seats (19) is rotatably connected with two rollers (20).
5. The waste gas treatment equipment for petrochemical industry according to claim 4, characterized in that: The right side of the box (1) is connected to and fixed with a drain pipe (21), and the front side of the box (1) is rotatably connected with a door panel (22).
6. The waste gas treatment equipment for petrochemical industry according to claim 5, characterized in that: A handle is fixedly connected to the front side of the door panel (22), and a support plate (23) is fixedly connected to the right side of the box body (1).
7. The waste gas treatment equipment for petrochemical industry according to claim 6, characterized in that: The top of the support plate (23) is fixedly connected to the bottom of the connecting box (10).