Device for purifying gaseous pollutants by using foam
By combining the foaming power component and the foam purification component of the foam purification device, the problem of purifying high-concentration, high-volume toxic and harmful gaseous pollutants in enclosed spaces is solved, achieving efficient and resource-saving purification effects, and is suitable for the treatment of various toxic and harmful gases.
Patent Information
- Application Number
- CN202520529722.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing technologies are insufficient to effectively treat high concentrations and large volumes of toxic and harmful gaseous pollutants in enclosed spaces. Furthermore, traditional methods are inadequate in terms of resource utilization efficiency, structural complexity, and foam stability, failing to meet the demands for efficient, convenient, and environmentally friendly purification.
A device for purifying gaseous pollutants using foam is employed. By combining a foaming power component and a foam purification component, the gaseous pollutants are purified multiple times using foaming liquid. The device includes a design of a bubble pool and a foaming plate to achieve highly efficient purification of gaseous pollutants.
It achieves efficient and resource-saving purification of gaseous pollutants, reduces equipment costs and maintenance resource consumption, and generates stable and highly encapsulating foam that can lock in gaseous pollutants, thus solving the problem of gaseous pollutant purification and ensuring purification effect. It is suitable for the treatment of various toxic and harmful gases.
Smart Images
Figure CN223915088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foam encapsulation for purifying gaseous pollutants, and in particular to a device for purifying gaseous pollutants using foam. Background Technology
[0002] In recent years, with the rapid development of cities and the continuous expansion of human activities, the use of enclosed spaces such as ships, space stations, and underground confined spaces has become increasingly widespread. However, these spaces generally suffer from poor ventilation and enclosed environments. In the event of a fire, gas leak, or other accident, they can easily generate large amounts of toxic and harmful gases and smoke, seriously threatening human life.
[0003] In addition, for some hazardous chemical storage tanks that release toxic and harmful gases, such as concentrated sulfuric acid, nitric acid, hydrochloric acid, liquid ammonia, chlorine and many other volatile hazardous chemicals, once they leak, they will spread everywhere, the harm will expand rapidly, and they will pose a huge challenge to emergency rescue.
[0004] In existing technologies, for enclosed spaces with poor ventilation and closed environments, such as ships, space stations, and underground confined spaces, large amounts of toxic and harmful gases and fumes, such as carbon monoxide, carbon dioxide, nitrogen oxides, sulfides, volatile organic compounds, and fire smoke, are often generated in the event of fires, gas leaks, or other accidents. These gases seriously threaten the safety of personnel and pose a significant challenge to emergency rescue. Commonly used treatment methods, such as mechanical ventilation, are limited by the spatial structure and external environmental conditions, making it difficult to effectively remove smoke; water curtains for pollutant isolation consume large amounts of water, and post-disaster water disposal is difficult; adsorption purification is only suitable for purifying low-concentration, low-volume gases, and is ineffective for purifying high-concentration, high-volume gaseous pollutants. Although methods using foam to remove smoke, dust, and toxic and harmful gases exist, they may have shortcomings in terms of equipment resource utilization efficiency, structural complexity, difficulty in handling solutions, and the stability and encapsulation properties of foam. These limitations cannot fully meet the requirements for efficient purification of gaseous pollutants and make it difficult to achieve efficient, convenient, and environmentally friendly treatment of gaseous pollutants in confined spaces.
[0005] For hazardous chemical storage tanks on the ground that release volatile toxic and harmful gases, leaks are often treated by spraying water to dilute the gas or covering them with sand. However, for highly acidic, alkaline, and corrosive chemicals, proximity is extremely difficult, and the volatile toxic and harmful gases are usually left to disperse with the wind. There is no effective way to deal with this. This results in significant environmental pollution and safety accidents.
[0006] To address the above problems, a device for purifying gaseous pollutants using foam is proposed. Utility Model Content
[0007] To overcome the above deficiencies, this utility model provides a device for purifying gaseous pollutants using foam, aiming to improve the existing technology for effectively handling large amounts of toxic and harmful gases and fumes generated in closed environments with poor ventilation, such as fires and gas leaks, in the event of accidents such as fires and gas leaks in ships, space stations, and underground enclosed spaces; as well as the pollution and safety problems caused by the volatilization of leaked gases during the storage of hazardous chemicals.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: a device for purifying gaseous pollutants using foam, comprising a box, a partition fixedly connected to the inner wall of the box, a foaming power component disposed inside the box, and a foam purification component disposed inside the box.
[0009] The foaming power assembly includes a centrifugal fan and a battery. The centrifugal fan is mounted on the outer side of the inner wall of the housing, and the battery is disposed on the outer side of the inner wall of the housing. A straight pipe is fixedly connected to one side of the centrifugal fan, and an L-shaped pipe is fixedly connected to the other side of the centrifugal fan. An air inlet is fixedly connected to the outer side of the straight pipe. The centrifugal fan is connected to the battery, and a switch is disposed on the outer side of the battery.
[0010] As a further description of the above technical solution:
[0011] The foam purification component includes a bubble tank and a foaming plate. The foaming plate is fixedly connected to the outer side of the straight pipe away from the centrifugal fan. The outer side of the bubble tank is fixedly connected to the inner wall of the box. A foaming column is installed on the inner wall of the bubble tank. A water outlet is fixedly connected to the bottom of the bubble tank. A screen is installed on the top of the foaming column. An exhaust port is opened on the upper part of the outer side of the box.
[0012] As a further description of the above technical solution:
[0013] The outlet has a diameter of 50mm.
[0014] As a further description of the above technical solution:
[0015] The bottom of the box is equipped with multiple casters, and the box is made of stainless steel.
[0016] As a further description of the above technical solution:
[0017] The air inlet is funnel-shaped, and the straight pipe is a PVC pipe with a diameter of 90-150mm.
[0018] As a further description of the above technical solution:
[0019] The bubbling tank is a stainless steel or plexiglass cylinder with an inner diameter of 200-500mm, a wall thickness of 1-3mm, and a height of 300-500mm.
[0020] As a further description of the above technical solution:
[0021] The bubbling column is a transparent organic material cylinder with an inner diameter of 190-490mm, a wall thickness of 1-2mm, and a height of 500-1000mm.
[0022] As a further description of the above technical solution:
[0023] The foaming plate is a stainless steel plate with a diameter of 180-240mm and a thickness of 1mm, and the inside of the foaming plate has multiple foaming holes with a diameter of 6mm.
[0024] This utility model has the following beneficial effects:
[0025] 1. In this utility model, by placing the prepared foaming liquid in a bubbling tank, using wind power to draw in gaseous pollutants, and purifying them by "washing" them in the foam solution, as well as by forming foam through a foaming plate to achieve multiple purifications, the unique design realizes the efficient utilization of the interaction between the foaming liquid and gaseous pollutants, greatly improves resource utilization efficiency, and achieves the goal of saving resources.
[0026] 2. In this utility model, through the simple design of the equipment, compared with traditional methods such as ventilation and smoke exhaust, water curtain smoke isolation, and fine water mist smoke removal, it achieves the reduction of equipment costs and equipment maintenance resource consumption. At the same time, with the characteristics of low water consumption and easy solution treatment, it avoids the resource consumption and environmental pressure caused by a large amount of sewage, highlighting the advantages in resource conservation.
[0027] 3. In this utility model, by generating foam with good stability and strong encapsulation, gaseous pollutants are firmly locked in, achieving a more durable smoke elimination and purification process, allowing gaseous pollutants to fully contact and react, and ultimately achieving the purpose of highly efficient purification of gaseous pollutants, demonstrating the practicality of this patent in actual application.
[0028] 4. This utility model uses a negative pressure intake method for gas purification, which can handle various toxic and harmful gas leaks and pollution accidents, and has a good engineering application basis. Attached Figure Description
[0029] Figure 1 This is a perspective view of a device for purifying gaseous pollutants using foam, as proposed in this utility model.
[0030] Figure 2 This is a side view of a device for purifying gaseous pollutants using foam, as proposed in this utility model.
[0031] Figure 3 This is a schematic diagram of the foaming plate of a device for purifying gaseous pollutants using foam, as proposed in this utility model.
[0032] Figure 4 This is a schematic diagram of the structure of the screen in a device for purifying gaseous pollutants using foam, as proposed in this utility model.
[0033] Legend:
[0034] 11. Air inlet; 12. Centrifugal fan; 13. Battery; 14. Straight pipe; 15. Switch; 21. Bubble tank; 22. Foaming plate; 23. Bubble column; 24. Screen; 25. Water outlet; 26. L-shaped pipe; 27. Exhaust port; 28. Baffle; 30. Box body; 31. Casters. Detailed Implementation
[0035] 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.
[0036] Reference Figures 1-4 An embodiment of this utility model is provided: a device for purifying gaseous pollutants using foam, including a box 30, a partition 28 fixedly connected to the inner wall of the box 30, a foaming power component and a foam purification component inside the box 30.
[0037] The foaming power assembly includes a centrifugal fan 12 and a battery 13. The centrifugal fan 12 is mounted on the outer side of the inner wall of the housing 30, and the battery 13 is mounted on the outer side of the inner wall of the housing 30. A straight pipe 14 is fixedly connected to one side of the centrifugal fan 12, and an L-shaped pipe 26 is fixedly connected to the other side of the centrifugal fan 12. An air inlet 11 is fixedly connected to the outer side of the straight pipe 14. The centrifugal fan 12 is connected to the battery 13, and a switch 15 is provided on the outer side of the battery 13.
[0038] Specifically, the housing 30 is used to house the foaming power component and the foam purification component, providing a support and protection structure for the entire device. The partition 28 is fixedly connected to the inner wall of the housing 30 to divide the interior of the housing 30 into different functional areas and prevent foam from flowing into the foaming power component. The centrifugal fan 12 generates suction to draw in gaseous pollutants from outside the device through the straight pipe 14 and blow the airflow containing gaseous pollutants into the foam purification component through the L-shaped pipe 26. The battery 13 provides power to the centrifugal fan 12. The straight pipe 14 stably delivers the gaseous pollutants collected by the air inlet 11 to the centrifugal fan 12. The L-shaped pipe 26 guides the airflow containing gaseous pollutants blown out by the centrifugal fan 12 to the foam purification component. The air inlet 11 is funnel-shaped to efficiently collect gaseous pollutants from the surrounding environment. The switch 15 controls the power supply of the battery 13 to the centrifugal fan 12, thereby controlling the start and stop of the device.
[0039] Reference Figures 1-4 The foam purification component includes a bubble tank 21 and a foaming plate 22. The foaming plate 22 is fixedly connected to the outside of a straight pipe 14 at the end away from the centrifugal fan 12. The bubble tank 21 is fixedly connected to the inside wall of the housing 30. A foaming column 23 is installed on the inside wall of the bubble tank 21. A water outlet 25 is fixedly connected to the bottom of the bubble tank 21. A screen 24 is installed on the top of the foaming column 23. An exhaust port 27 is opened on the upper part of the outside of the housing 30.
[0040] Specifically, the bubbling tank 21 is used to hold the foaming liquid, providing a place for the purification of gaseous pollutants. The foaming plate 22 is fixedly connected to the end of the straight pipe 14 away from the centrifugal fan 12, so that the airflow containing gaseous pollutants can pass through and form a large amount of foam in the foaming liquid in the bubbling tank 21, so as to achieve the initial "water washing" purification of gaseous pollutants. The foaming column 23 is installed on the inner wall of the bubbling tank 21 to contain the foam generated during the purification of gaseous pollutants, making it convenient to observe the purification process. The outlet 25 is fixedly connected to the bottom of the bubbling tank 21 to discharge the foaming liquid after multiple uses. The screen 24 is installed on the top of the foaming column 23 to squeeze the foam that reaches the top and break it, while limiting the foam overflow from the foaming column. The exhaust port 27 is opened on the upper part of the outer side of the box 30 to discharge the purified gas.
[0041] Example 1: A fire broke out inside a factory, resulting in dense smoke. Given that the instrument room contained precision instruments, and based on relevant safety regulations and the characteristics of the instruments, traditional water-based fire extinguishing methods were strictly prohibited. Furthermore, the existing ventilation system inside the room had limited airflow and was insufficient to effectively remove the dense smoke generated by the fire.
[0042] In this situation, by applying the device of this utility model, the efficient absorption and purification of dense smoke at the fire scene was successfully achieved. This device not only completes the purification of dense smoke in a short time, effectively improving the on-site environment, but also plays a crucial role in protecting precision instruments indoors, minimizing property damage caused by the fire and keeping overall losses to a minimum.
[0043] Example 2: A factory experienced a liquid ammonia leak, causing ammonia water to flow into an emergency pool for temporary storage. However, the high volatility of ammonia water caused its gas to permeate the surrounding environment, posing a significant risk of combustion and explosion. To quickly reduce and resolve this issue, the device of this invention was used on-site to treat and purify the ammonia gas diffused in the air. First, the air inlet 11 was placed near the emergency pool. Then, the blower was started to quickly draw the ammonia gas from the air into the bubbling pool, where it was sealed with foam, thereby rapidly reducing the concentration of ammonia gas on-site and mitigating the risk of combustion and explosion.
[0044] Reference Figures 1-4 The outlet 25 has a diameter of 50mm. The bottom of the tank 30 is equipped with multiple casters 31. The tank 30 is made of stainless steel. The air inlet 11 is trumpet-shaped. The straight pipe 14 is a PVC pipe with a diameter of 90-150mm. The bubbling tank 21 is a stainless steel or plexiglass cylinder with an inner diameter of 200-500mm, a wall thickness of 1-3mm, and a height of 300-500mm. The bubble column 23 is a transparent organic material cylinder with an inner diameter of 190-490mm, a wall thickness of 1-2mm, and a height of 500-1000mm. The foaming plate 22 has a diameter of 180-240mm, a thickness of 1mm, and multiple 6mm diameter foaming holes inside.
[0045] Specifically, the outlet 25 is used to conveniently discharge the foaming liquid after multiple uses from the bubbling tank 21. Its suitable diameter ensures smooth discharge of the foaming liquid. The casters 31 allow the device to be easily moved to different locations to adapt to different gaseous pollutant purification needs. The housing 30 is made of stainless steel to ensure the device's robustness and durability, enhance its corrosion and wear resistance, and extend its service life. The air inlet 11 is funnel-shaped to more efficiently collect gaseous pollutants from the surrounding environment and expand the collection range. The straight pipe 14 stably transports the gaseous pollutants collected by the air inlet 11 to the downstream... The following components, with appropriate pipe diameter, ensure the stability of gas transmission. Bubble tank 21 is used to hold an appropriate amount of foaming liquid, providing sufficient reaction space for the purification of gaseous pollutants. Bubble column 23 is used to hold the foam generated during the purification process. The transparent material facilitates observation of foam generation and the purification process. Appropriate size ensures that the foam has sufficient space to rise and react. Bubble plate 22 is used to allow the airflow containing gaseous pollutants to pass through the foaming holes and form a large amount of foam in the foaming liquid of bubble tank 21, performing preliminary "water washing" purification of gaseous pollutants. Appropriate size and foaming hole design ensure the efficiency and quality of foam generation.
[0046] Working principle: When using the foam purification device for gaseous pollutants, inject 1500ml of foam solution into the bubbling tank 21, push the device to the location where gaseous pollutants need to be purified, and turn on the switch 15 after reaching the designated position. At this time, the battery 13 starts to supply power to the centrifugal fan 12. The air inlet 11 is funnel-shaped, which can efficiently collect gaseous pollutants in the surrounding environment and transport them to the centrifugal fan 12 through the straight pipe 14. After the centrifugal fan 12 starts, it generates a strong suction force to suck in the gaseous pollutants outside the device. Subsequently, the centrifugal fan 12 blows the airflow containing gaseous pollutants into the foam purification component through the L-shaped pipe 26. When the airflow containing gaseous pollutants passes through the foaming plate 22, a large amount of foam is formed in the foaming liquid in the bubbling tank 21, thereby performing preliminary "water washing" purification of the gaseous pollutants.
[0047] Under the action of airflow, a large amount of foam containing gaseous pollutants moves upward in the bubble column 23. When the foam reaches the top of the bubble column 23, it is squeezed and broken by the mesh screen 24 made of stainless steel wire at the top.
[0048] During this process, incompletely purified gaseous pollutants further contact and react with the foaming liquid in the foam. Gas molecules enter the gas-liquid interface under convective mass transfer and are then adsorbed by the solution. The purified gas is discharged from the device through the exhaust port 27, while the foaming liquid that has been used multiple times can be discharged through the outlet 25 at the bottom of the bubbling tank 21 for subsequent replacement or treatment.
[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for purifying gaseous pollutants using foam, comprising a housing (30), characterized in that: The inner wall of the box (30) is fixedly connected with a partition (28), a foaming power component is provided inside the box (30), and a foam purification component is provided inside the box (30). The foaming power assembly includes a centrifugal fan (12) and a battery (13). The centrifugal fan (12) is mounted on the outer side of the inner wall of the housing (30), and the battery (13) is disposed on the outer side of the inner wall of the housing (30). A straight pipe (14) is fixedly connected to one side of the centrifugal fan (12), and an L-shaped pipe (26) is fixedly connected to the other side of the centrifugal fan (12). An air inlet (11) is fixedly connected to the outer side of the straight pipe (14). The centrifugal fan (12) is connected to the battery (13), and a switch (15) is disposed on the outer side of the battery (13).
2. The device for purifying gaseous pollutants using foam according to claim 1, characterized in that: The foam purification component includes a bubble tank (21) and a foaming plate (22). The foaming plate (22) is fixedly connected to the outside of the straight pipe (14) at the end away from the centrifugal fan (12). The bubble tank (21) is fixedly connected to the outside of the inner wall of the box (30). A foaming column (23) is installed on the inner wall of the bubble tank (21). A water outlet (25) is fixedly connected to the bottom of the bubble tank (21). A screen (24) is installed on the top of the foaming column (23). An exhaust port (27) is opened on the upper part of the outside of the box (30).
3. The device for purifying gaseous pollutants using foam according to claim 2, characterized in that: The outlet (25) has a diameter of 50 mm.
4. The device for purifying gaseous pollutants using foam according to claim 1, characterized in that: The bottom of the box (30) is equipped with multiple casters (31), and the box (30) is made of stainless steel.
5. The device for purifying gaseous pollutants using foam according to claim 1, characterized in that: The air inlet (11) is funnel-shaped, and the straight pipe (14) is a PVC pipe with a diameter of 90-150mm.
6. The device for purifying gaseous pollutants using foam according to claim 2, characterized in that: The bubbling tank (21) is a stainless steel or plexiglass cylinder with an inner diameter of 200-500mm, a wall thickness of 1-3mm, and a height of 300-500mm.
7. The device for purifying gaseous pollutants using foam according to claim 2, characterized in that: The bubbling column (23) is a transparent organic material cylinder with an inner diameter of 190-490 mm, a wall thickness of 1-2 mm, and a height of 500-1000 mm.
8. The device for purifying gaseous pollutants using foam according to claim 2, characterized in that: The foaming plate (22) has a diameter of 180-240mm and a thickness of 1mm. The foaming plate (22) is a stainless steel plate with multiple foaming holes of 6mm in diameter inside.