Device for filtering toxic gas in sewage well

Abstract

The utility model discloses a device for filtering poisonous gas in a sewage well, belongs to the technical field of sewage drainage engineering, and aims to solve the problem that the sewage well is poor in deodorization, odor resistance and poisonous gas filtering effect. According to the technical scheme, the manhole cover is characterized by comprising an outer box body arranged in a manhole body and a manhole cover body buckled with the manhole body, the outer wall of the outer box body is attached to the manhole wall, a filter material box is fixedly connected into an inner cavity of the outer box body, a filter material bin is formed in the filter material box, and filter screens are detachably connected to the upper end and the lower end of the filter material bin; a drainage cavity is formed between the outer wall of the filter material box and the inner wall of the outer box body, and a drainage hole communicated with the drainage cavity is formed in the bottom wall of the outer box body; the bottom of the outer box body is fixedly connected with a plurality of water drainage pipes, the water drainage pipes are communicated with the water drainage holes, and the lower ends of the water drainage pipes are fixedly connected with traps, so that efficient filtration and treatment of toxic and harmful gas are achieved, regular maintenance of existing facilities is facilitated, the long-term stable operation effect is ensured, and the concentration of the harmful gas in the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage drainage engineering, and more specifically, to a device for filtering poisonous gases in a sewage well. Background Art

[0002] In urban sewage treatment and drainage systems, sewage wells play a vital role. They are not only responsible for discharging gases in sewage pressure pipelines, but also need to ensure the normal operation and safety of the system. However, during operation, sewage wells often leak foul-smelling gases and even toxic gases, causing serious impacts on the surrounding environment. The leakage of odor and toxic gases not only reduces the quality of life of residents, but also may pose a potential threat to their health.

[0003] In order to solve the problem of gas accumulation in sewage wells, ventilation wells are set up, and inspection wells are facilities used to inspect and maintain sewage wells. At present, the deodorization and odor prevention facilities of many ventilation wells and inspection wells are not perfect or missing, resulting in the inability to effectively control odor. At the same time, even if there are deodorization and odor prevention and filtration facilities, the internal treatment filter materials will gradually become ineffective over time and need to be replaced or maintained regularly, which greatly reduces the deodorization and odor prevention and filtration effects of ventilation wells and inspection wells, and cannot meet the needs of environmental protection and residents' health. Therefore, it is necessary to propose a new solution to the problem of poor deodorization and odor prevention and filtration of toxic gases in sewage wells. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a device for filtering toxic gases in sewage wells, which can improve the deodorization and odor prevention and filtration of toxic gases in sewage wells through structural settings.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a device for filtering toxic gases in a sewage well, comprising an outer box placed in the well body and a pit cover buckled with the well body, the outer wall of the outer box body being in contact with the well wall, a filter box being fixedly connected to the inner cavity of the outer box body, a filter material bin being provided in the filter material bin, and a filter screen being detachably connected to the upper and lower ends of the filter material bin;

[0006] A drainage cavity is formed between the outer wall of the filter box and the inner wall of the outer box body, and a drainage hole communicating with the drainage cavity is opened on the bottom wall of the outer box body;

[0007] The bottom of the outer box is fixedly connected to a plurality of drain pipes, the drain pipes are communicated with the drainage holes, and the lower ends of the drain pipes are fixedly connected to a water trap;

[0008] The water outlet end of the water trap is detachably connected to a movable pipe cover, the movable pipe cover is provided with a water outlet, the movable pipe cover is sleeved on the water outlet end of the water trap, the movable pipe cover and the water outlet end of the water trap are detachably connected via a fixing member, and the fixing member applies an inward force to the outer peripheral wall of the movable pipe cover;

[0009] A plurality of connecting pieces are fixedly connected to the outer wall of the outer box body, and the connecting pieces are used to be connected to the well body.

[0010] The utility model is further configured as follows: the upper end face of the fixing member is fixedly connected to a protective structure, the protective structure includes a protective part and a water replenishing part, the protective part is used to prevent the liquid flowing out of the filter screen at the lower end of the filter bin from falling onto the movable pipe cover, and the water replenishing part is used to replenish the liquid when the liquid in the water trap is insufficient.

[0011] The utility model is further configured as follows: the protection portion includes a blocking section, the blocking section is provided with a blocking cavity opening downward, and one end of the movable pipe cover close to the water outlet penetrates into the blocking cavity.

[0012] The utility model is further configured as follows: the protective portion further comprises a water receiving section fixedly connected to the blocking section, and the water receiving section is provided with a water receiving cavity opening upward.

[0013] The utility model is further configured as follows: the water replenishing part includes a water replenishing pipe, a water replenishing port is opened on the side wall of the drain pipe, the water receiving chamber and the water replenishing port are connected through the water replenishing pipe, and the height of the water receiving chamber is higher than the water replenishing port.

[0014] The utility model is further configured as follows: one end of the blocking section away from the water receiving section is fixedly connected to a plurality of support members, and the support members are fixedly connected to the upper end surface of the fixing member.

[0015] The utility model is further configured as follows: hydrogen sulfide treatment filter material and mercaptan sulfide organic volatiles treatment filter material are arranged in the filter material bin.

[0016] In summary, the present invention has the following beneficial effects:

[0017] The device effectively adsorbs and treats the odor and toxic gases emitted from sewage wells, achieving efficient filtration and treatment of toxic gases. By installing the device, the concentration of harmful gases in the environment can be reduced, the impact of odor emitted from sewage wells on the surrounding environment can be reduced, and the potential threat to the health of surrounding residents can be reduced. The device is easy to install and facilitates regular maintenance of existing facilities, thereby ensuring long-term stable operation. The protective structure of the device effectively prevents the liquid flowing out of the filter bin from corroding or damaging the movable pipe cover, and can automatically replenish liquid when the liquid in the water trap is insufficient, ensuring the continued effectiveness of the water seal. The device also has the function of extending the effectiveness of the water seal, so that the water seal in the water trap can remain effective for a longer time, preventing the external air and harmful gases in the sewage well from circulating with each other, improving the stability of the device, extending the service life of the facility, and reducing the cost of operation and maintenance. The device is easy to maintain and clean, providing a strong guarantee for environmental protection and residents' health. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the utility model installed in a well body;

[0019] Figure 2 Schematic diagram of the structure of removing the pit cover of the utility model Figure 1 ;

[0020] Figure 3 Schematic diagram of the structure of removing the pit cover of the utility model Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the structure of the utility model with a protective structure installed Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the structure of the utility model with a protective structure installed Figure 1 ;

[0023] Figure 6 This is a schematic diagram of the structure of the protective structure, drain pipe and trap.

[0024] In the figure: 1. Well body; 2. Outer box body; 3. Well cover; 4. Filter box; 41. Filter bin; 5. Filter screen; 6. Drain chamber; 61. Drain hole; 7. Drain pipe; 8. Trap; 9. Movable pipe cover; 10. Fixing part; 11. Connecting part; 12. Blocking section; 121. Blocking chamber; 13. Water receiving section; 131. Water receiving chamber; 14. Water supply pipe; 15. Water supply port; 16. Support. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Example:

[0027] like Figure 1-Figure 3As shown, the device for filtering toxic gases in the sewage well includes a stainless steel outer box body 2 with a thickness of 2 mm placed in the well body 1 and a customized ductile iron pit cover 3 that is buckled with the well body 1. The outer wall of the outer box body 2 is in contact with the well wall. The outer peripheral wall of the outer box body 2 is welded with four connectors 11 that are snap-fitted with the well body 1. The connector 11 is an L-shaped stainless steel well body 1 hook. The steel plate seam welding material of this device is H08Mn submerged arc welding wire, and the welding rod is E5017 / E5017 welding rod. A cylindrical filter box 4 is welded in the inner cavity of the outer box body 2. The interior of the filter box 4 is hollow to form a filter bin 41. The diameter of the filter bin 41 is The filter bin 41 is 400mm wide and 300mm high. A circular plate-shaped stainless steel filter screen 5 with a thickness of 1.5mm is installed on the upper end of the filter bin 41 through a bolt with a specification of M12*160. The lower end of the filter bin 41 is a circular plate-shaped stainless steel filter screen 5 with a thickness of 1.5mm welded to the bottom of the filter box 4. The filter bin 41 in the filter box 4 is filled with hydrogen sulfide treatment filter media and mercaptan sulfide organic volatiles treatment filter media. The filter media is replaced regularly with a validity period of one year. It can efficiently adsorb and decompose harmful gases such as hydrogen sulfide, mercaptan sulfide and other volatile organic compounds (VOCs), thereby effectively filtering and treating the gases generated in the sewage well. The toxic and harmful gases are removed, the concentration of toxic gases in the environment is reduced, and the impact on the surrounding environment and residents' health is reduced; an annular drainage cavity 6 is formed between the outer wall of the filter box 4 and the inner wall of the outer box body 2, and a circular drainage hole 61 is provided on the bottom wall of the outer box body 2 and is connected to the drainage cavity 6; a drain pipe 7 is welded to the bottom of the outer box body 2, the diameter of the drain pipe 7 is 50 mm, and the height is 350 mm. The drain pipe 7 is connected to the drainage hole 61, and a water trap 8 is welded to the lower end of the drain pipe 7. The water outlet end of the water trap 8 is provided with a movable pipe cover 9, and the movable pipe cover 9 is provided with a water outlet. The movable pipe cover 9 is connected to the water outlet end of the water trap 8. It is fixed by a fixing part 10, which is a stainless steel clamp. It collects rainwater from the ground through the drainage cavity 6 and the drain pipe 7 and discharges it in time to avoid bacterial growth and odor caused by moisture accumulation. The water trap 8 uses the principle of water seal to prevent the natural leakage of odor. The movable pipe cover 9 can reduce the volatilization rate of the liquid in the water trap 8 and reduce the sewage entering the water trap 8, reducing the risk of blockage of the water trap 8. The device as a whole can effectively prevent the external air and harmful gases in the sewage well from circulating with each other, improve the deodorization and odor prevention effect in the sewage well and filter toxic gases, and further ensure the safety of the surrounding environment and residents' health.

[0028] like Figure 3-Figure 6As shown, the upper end surface of the fixing member 10 is equipped with a protective structure for protecting the movable pipe cover 9, and the protective structure includes a protective part and a water replenishing part. The protective part is used to prevent the liquid flowing out of the filter screen 5 at the lower end of the filter bin 41 from falling onto the movable pipe cover 9, and the water replenishing part is used to replenish the liquid when the liquid in the water trap 8 is insufficient. The protective structure can not only strengthen the connection between the movable pipe cover 9 and the water outlet end of the water trap 8, but also effectively prevent the liquid flowing out of the filter screen 5 at the lower end of the filter bin 41 from falling directly onto the movable pipe cover 9, thereby reducing the risk of water leakage. The movable pipe cover 9 may be corroded or damaged, and the risk of water seal failure caused by poor water discharge from the drain pipe 7 or excessive evaporation of water in the water trap 8 is reduced. The protective part includes a cylindrical baffle section 12 and a cylindrical water receiving section 13 integrally formed with the baffle section 12. The baffle section 12 is provided with a baffle cavity 121 with a downward opening. The end of the movable pipe cover 9 close to the water outlet penetrates into the baffle cavity 121. The end of the baffle section 12 away from the water receiving section 13 is integrally formed with a plurality of support members 16, which are made of stainless steel. The support rod and the support member 16 are welded to the upper end surface of the fixing member 10. The liquid discharged by the drain pipe 7 can be discharged smoothly from the spacing position between the support members 16. The water receiving section 13 is provided with a water receiving cavity 131 opening upward. The water replenishment portion includes a stainless steel water replenishment pipe 14 connecting the water receiving section 13 and the drain pipe 7. The side wall of the drain pipe 7 is provided with a water replenishment port 15. The water receiving cavity 131 and the water replenishment port 15 are connected through the water replenishment pipe 14. The height of the water receiving cavity 131 is higher than the water replenishment port 15. The liquid in the water receiving cavity 131 can be discharged automatically. Then it flows into the drain pipe 7. Since the speed at which the liquid flows out of the filter screen 5 at the lower end of the filter bin 41 is slower than the drainage speed of the drain pipe 7, liquid still flows out of the filter screen 5 at the lower end of the filter bin 41 after the drain pipe 7 completes drainage. When the water storage amount in the water trap 8 is lower than the height of the water replenishment port 15, the liquid flowing out of the filter screen 5 at the lower end of the filter bin 41 enters the water trap 8 through the water receiving cavity 131 and the water replenishment pipe 14 for water replenishment, thereby extending the effective time of the water seal of the water trap 8 and further improving the deodorization and odor prevention effect in the sewage well.

[0029] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0030] In the description of this utility model, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for filtering toxic gases in a sewage well, comprising an outer box (2) placed in a well body (1) and a well cover (3) buckled with the well body (1), wherein the outer wall of the outer box (2) is in contact with the well wall, and is characterized in that: A filter box (4) is fixedly connected to the inner cavity of the outer box (2), a filter bin (41) is provided in the filter box (4), and a filter screen (5) is detachably connected to the upper and lower ends of the filter bin (41); A drainage cavity (6) is formed between the outer wall of the filter material box (4) and the inner wall of the outer box body (2), and a drainage hole (61) communicating with the drainage cavity (6) is opened on the bottom wall of the outer box body (2); The bottom of the outer box (2) is fixedly connected to a plurality of drain pipes (7), the drain pipes (7) are communicated with the drainage holes (61), and the lower ends of the drain pipes (7) are fixedly connected to a water trap (8); The water outlet end of the water trap (8) is detachably connected to a movable pipe cover (9), the movable pipe cover (9) is provided with a water outlet, the movable pipe cover (9) is sleeved on the water outlet end of the water trap (8), the movable pipe cover (9) and the water outlet end of the water trap (8) are detachably connected via a fixing member (10), and the fixing member (10) applies an inward force to the outer peripheral wall of the movable pipe cover (9); A plurality of connecting pieces (11) are fixedly connected to the outer wall of the outer box body (2), and the connecting pieces (11) are used to be connected to the well body (1).

2. The device for filtering toxic gases in a sewage well according to claim 1, characterized in that: The upper end surface of the fixing member (10) is fixedly connected to a protective structure, the protective structure comprising a protective portion and a water replenishing portion, the protective portion being used to prevent liquid flowing out of the filter screen (5) at the lower end of the filter bin (41) from falling onto the movable pipe cover (9), and the water replenishing portion being used to replenish liquid when the liquid in the water trap (8) is insufficient.

3. The device for filtering toxic gases in a sewage well according to claim 2, characterized in that: The protection portion comprises a blocking section (12), the blocking section (12) is provided with a blocking cavity (121) opening downward, and one end of the movable pipe cover (9) close to the water outlet penetrates into the blocking cavity (121).

4. The device for filtering toxic gases in a sewage well according to claim 3, characterized in that: The protective portion further comprises a water receiving section (13) fixedly connected to the barrier section (12), and the water receiving section (13) is provided with a water receiving cavity (131) opening upward.

5. The device for filtering toxic gases in a sewage well according to claim 4, characterized in that: The water replenishing portion comprises a water replenishing pipe (14), a water replenishing port (15) is provided on the side wall of the drain pipe (7), the water receiving chamber (131) and the water replenishing port (15) are connected via the water replenishing pipe (14), and the height of the water receiving chamber (131) is higher than the water replenishing port (15).

6. The device for filtering toxic gases in a sewage well according to claim 5, characterized in that: One end of the blocking section (12) away from the water receiving section (13) is fixedly connected to a plurality of support members (16), and the support members (16) are fixedly connected to the upper end surface of the fixing member (10).

7. The device for filtering toxic gases in a sewage well according to claim 1, characterized in that: The filter material bin (41) is provided with filter material for treating hydrogen sulfide and filter material for treating volatile organic compounds of mercaptan and thioether.

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