A device for removing hydrogen sulfide, ammonia and water vapor in a power distribution cabinet of a sewage plant

Abstract

The present application relates to the technical field of urban and town domestic sewage treatment plant equipment, and discloses a device for removing hydrogen sulfide, ammonia and water vapor in a power distribution cabinet of a sewage treatment plant, which solves the problem that it is difficult to remove hydrogen sulfide, ammonia and water vapor in the power distribution cabinet at present, and comprises a cabinet body, a removal mechanism arranged in the interior of the cabinet body, and a water vapor treatment module arranged on the inner bottom wall of the cabinet body, wherein the removal mechanism comprises two brackets fixed in the interior of the cabinet body, an ammonia treatment hollow frame and a hydrogen sulfide treatment hollow frame respectively placed on the top of the two brackets, the hydrogen sulfide treatment hollow frame is located below the ammonia treatment hollow frame, and the interior of the ammonia treatment hollow frame is provided with an ammonia treatment layer; through the cooperation between the semiconductor refrigerating sheet, the hydrophobic microchannel and the water collecting tank in the water vapor treatment module, the water vapor in the interior of the cabinet body can be removed, so that it is convenient to remove the hydrogen sulfide, ammonia and water vapor in the cabinet body.

Description

Technical Field

[0001] This invention belongs to the technical field of equipment for urban and town domestic sewage treatment plants, specifically a device for removing hydrogen sulfide, ammonia and water vapor in the power distribution cabinet of a sewage treatment plant. Background Technology

[0002] Wastewater from wastewater treatment plants is transported through long-distance pipelines and enters structures such as pumping stations, coarse screens, fine screens, and grit chambers. Odor-causing gases such as hydrogen sulfide and ammonia formed in these pipelines can escape into the atmosphere due to intense turbulence or static pre-aeration, becoming sources of odor. From the perspective of the types of odor sources, the odor from wastewater treatment plants is not just composed of odor molecules; the smell of wastewater is often composed of dozens or even hundreds of different odors. Among these, hydrogen sulfide and ammonia are prominent and common. Hydrogen sulfide is an acidic gas that not only produces a noticeable odor but can also cause acid corrosion to wastewater pipes, pumps, and equipment. Ammonia dissolves in water to form an alkaline solution, which corrodes metal equipment such as copper and aluminum.

[0003] Power distribution cabinets are exposed to high humidity and corrosive gas environments such as coarse and fine screens in sewage treatment plants for a long time. Water vapor, hydrogen sulfide and ammonia easily accumulate inside, leading to corrosion of the cabinet and its internal components, copper busbars, terminals and metal rails. This may even cause short circuits in electrical components, oxidation of contacts and explosion risks.

[0004] While traditional methods of using large spaces and installing fans to extract gases can dilute the gases, they only dilute the gases and do not solve the moisture problem. The humidity inside the cabinet remains high, which exacerbates corrosion. Furthermore, the hydrogen sulfide and ammonia that cannot be decomposed can still cause a large amount of corrosive gases to enter the power cabinet, resulting in secondary pollution and corrosion, especially given inconsistent operation, maintenance, or protection quality of the power cabinets by operators. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a device for removing hydrogen sulfide, ammonia and water vapor in the power distribution cabinet of a sewage treatment plant, which effectively solves the problem that it is currently inconvenient to remove hydrogen sulfide, ammonia and water vapor in the power distribution cabinet.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for removing hydrogen sulfide, ammonia and water vapor in a power distribution cabinet of a sewage treatment plant, comprising a cabinet, wherein a removal mechanism is provided inside the cabinet, and a water vapor treatment module is provided on the inner bottom wall of the cabinet;

[0007] The removal mechanism includes two brackets fixed inside the cabinet. Ammonia treatment cutout frame and hydrogen sulfide treatment cutout frame are respectively placed on the top of the two brackets. The hydrogen sulfide treatment cutout frame is located below the ammonia treatment cutout frame. The ammonia treatment cutout frame has an ammonia treatment layer inside, and the hydrogen sulfide treatment cutout frame has a hydrogen sulfide treatment layer inside.

[0008] The ammonia treatment layer is a phosphoric acid modified molecular sieve, which captures ammonia through a combination of acid-base neutralization and physical adsorption. The hydrogen sulfide treatment layer is biomass activated carbon loaded with nano-copper oxide, which converts hydrogen sulfide into elemental sulfur or sulfate through surface oxidation reaction.

[0009] The water vapor treatment module includes a semiconductor cooling chip, a hydrophobic microchannel, and a water collection tank. The semiconductor cooling chip lowers the temperature inside the cabinet below the dew point, and the water vapor condenses and is then guided through the hydrophobic microchannel to the water collection tank for collection.

[0010] Preferably, both brackets are provided with clearance grooves, and inner rods are fixedly connected to the inner sides of both clearance grooves. Bottom blocks are fixedly connected to the bottom of both the ammonia treatment hollow frame and the hydrogen sulfide treatment hollow frame, and the two bottom blocks are respectively movably sleeved on the outer sides of the two inner rods.

[0011] Preferably, a limiting sleeve is fixedly sleeved on the outer side of the inner rod, and the bottom block abuts against the limiting sleeve.

[0012] Preferably, an L-shaped rod is fixedly connected to the bottom of the bracket, a side block is fixedly connected to the end of the L-shaped rod away from the bracket, a slider is movably sleeved on the outer side of the L-shaped rod, an insertion rod is fixedly connected to the side of the slider near the bottom block, the end of the insertion rod away from the slider abuts against the bottom block, a side ring is fixedly connected to the side of the bottom block near the slider, and the insertion rod is inserted into the side ring.

[0013] Preferably, the outer side of the L-shaped rod is provided with a limiting groove, and the inner side of the slider is fixedly connected to a limiting block, with the limiting block and the limiting groove being slidably connected.

[0014] Preferably, a side plate is provided on the outer side of the side block, and a movable rod is rotatably connected to the side of the side plate away from the side block. The end of the movable rod away from the side plate is rotatably connected to the slider.

[0015] Preferably, a rotating shaft is fixedly connected to the side of the side plate near the side block, and a drive assembly is provided on the outer side of the rotating shaft. The end of the rotating shaft away from the side plate passes through the side block and extends to the outer side of the cabinet. A mounting bracket is provided on the outer side of the cabinet, and the rotating shaft is rotatably connected to the mounting bracket.

[0016] Preferably, the drive assembly includes a U-shaped rod fixed to the outside of the cabinet, a mounting bracket fixedly connected to the U-shaped rod, a slide rod fixedly connected to the inside of the U-shaped rod, a slide plate movably sleeved on the outside of the slide rod, a toothed plate fixedly connected to the side of the slide plate near the rotating shaft, and a gear fixedly installed on the outside of the rotating shaft, the gear meshing with the toothed plate.

[0017] Preferably, a screw is rotatably connected to the inner top wall of the U-shaped rod, a drive shaft is fixedly connected to the bottom end of the screw, the bottom end of the drive shaft extends to the outside of the U-shaped rod and is fixedly connected to a handwheel, a screw sleeve is threaded onto the outside of the screw, and a sliding plate is fixed to the outside of the screw sleeve.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, through the cooperation between the hydrogen sulfide treatment perforated frame and the hydrogen sulfide treatment layer, and the ammonia treatment perforated frame and the ammonia treatment layer, can remove hydrogen sulfide and ammonia from inside the cabinet. Furthermore, through the cooperation between the semiconductor cooling chip, the hydrophobic microchannel, and the water collection tank in the water vapor treatment module, it can remove water vapor from inside the cabinet, thereby facilitating the removal of hydrogen sulfide, ammonia, and water vapor that are difficult to remove from inside the cabinet.

[0020] 2. This invention utilizes the cooperation between the rotating shaft, side plate, movable rod, slider, and L-shaped round rod. When the rotating shaft rotates, it facilitates the movement of the insertion rod and separation from the side ring, thereby releasing the fixation between the bottom block and the bracket. This makes it easy to disassemble the ammonia treatment perforated frame and the hydrogen sulfide treatment perforated frame from the inside of the cabinet, thus facilitating the replacement of the ammonia treatment layer and the hydrogen sulfide treatment layer.

[0021] 3. This invention facilitates the sliding of the slide along the slide bar through the cooperation between the handwheel and the drive shaft, as well as the screw and the screw sleeve, and facilitates the rotation of the shaft through the cooperation between the toothed plate and the gear. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of the hydrogen sulfide, ammonia and water vapor removal device in the power distribution cabinet of the wastewater treatment plant according to the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of the removed mechanism in this invention;

[0026] Figure 3 This is a schematic diagram of the support structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the mounting frame structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the side disc structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the driving component structure of the present invention.

[0030] In the diagram: 1. Cabinet; 2. Removal mechanism; 201. Bracket; 202. Ammonia treatment perforated frame; 203. Hydrogen sulfide treatment perforated frame; 204. Ammonia treatment layer; 205. Hydrogen sulfide treatment layer; 206. Clearance groove; 207. Mounting bracket; 208. Rotating shaft; 209. Side plate; 2010. Inner rod; 2011. Base block; 2012. Limiting cylinder; 2013. L-shaped round rod; 2014. 1. Limiting groove; 2015. Slider; 2016. Limiting block; 2017. Side block; 2018. Movable rod; 2019. Insert rod; 2020. Side ring; 3. Drive assembly; 301. U-shaped round rod; 302. Slide rod; 303. Toothed plate; 304. Gear; 305. Handwheel; 306. Drive shaft; 307. Screw; 308. Screw sleeve; 309. Slide plate; 4. Water vapor treatment module. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Example 1, by Figures 1-6 The present invention relates to a device for removing hydrogen sulfide, ammonia and water vapor in a power distribution cabinet of a sewage treatment plant, comprising a cabinet 1, a removal mechanism 2 inside the cabinet 1, and a water vapor treatment module 4 on the inner bottom wall of the cabinet 1.

[0033] In Example 2, based on Example 1, the removal mechanism 2 includes two supports 201 fixed inside the cabinet 1. Ammonia treatment perforated frame 202 and hydrogen sulfide treatment perforated frame 203 are respectively placed on the top of the two supports 201. The hydrogen sulfide treatment perforated frame 203 is located below the ammonia treatment perforated frame 202. An ammonia treatment layer 204 is provided inside the ammonia treatment perforated frame 202, and a hydrogen sulfide treatment layer 205 is provided inside the hydrogen sulfide treatment perforated frame 203. The ammonia treatment layer 204 is a phosphoric acid modified molecular sieve, which captures ammonia through a dual action of acid-base neutralization and physical adsorption. The hydrogen sulfide treatment layer 205 is biomass activated carbon loaded with nano-copper oxide, which converts hydrogen sulfide into elemental sulfur or sulfate through a surface oxidation reaction. The water vapor treatment module 4 includes a semiconductor cooling chip, a hydrophobic microchannel, and a water collection tank. The semiconductor cooling chip lowers the temperature inside the cabinet 1 below the dew point. After water vapor condenses, it is guided through the hydrophobic microchannel to the water collection tank for collection.

[0034] The ammonia treatment layer 204 is located in the upper layer inside cabinet 1. Since ammonia is lighter than air, it rises. Placing the ammonia treatment layer 204 at the top facilitates the capture of rising ammonia by the phosphoric acid-modified molecular sieve through a combination of acid-base neutralization and physical adsorption. This fully utilizes the function of the ammonia treatment layer 204, achieving efficient ammonia treatment. The hydrogen sulfide treatment layer 205 is located in the middle layer inside cabinet 1. Hydrogen sulfide is heavier than air and sinks. Placing the hydrogen sulfide treatment layer 205 in the middle layer allows the biomass activated carbon-loaded nano-copper oxide to effectively absorb the hydrogen sulfide as it diffuses downwards. The surface oxidation reaction converts it into elemental sulfur or sulfate. At the same time, this arrangement facilitates the orderly flow of gas between the processing layers. The water vapor treatment module 4 is located in the lower layer inside the cabinet 1, where water vapor usually accumulates. The semiconductor cooling chip lowers the temperature inside the cabinet 1 below the dew point, causing the water vapor to condense and then be guided to the water collection tank through the hydrophobic microchannel. This operation is more in line with the principle of gravity and facilitates the collection of condensate. In addition, placing the water vapor treatment module 4 in the lower layer can also prevent water vapor from affecting the gas treatment module above, simultaneously reducing humidity and reducing the risk of electrolytic corrosion.

[0035] In Example 3, based on Example 1, both brackets 201 are provided with clearance grooves 206, and inner rods 2010 are fixedly connected to the inner sides of both clearance grooves 206. Bottom blocks 2011 are fixedly connected to the bottoms of the ammonia treatment hollow frame 202 and the hydrogen sulfide treatment hollow frame 203. The two bottom blocks 2011 are respectively movably sleeved on the outer sides of the two inner rods 2010. Limiting cylinders 2012 are fixedly sleeved on the outer sides of the inner rods 2010, and the bottom blocks 2011 abut against the limiting cylinders 2012. An L-shaped rod 2013 is fixedly connected to the bottom of bracket 201. A side block 2017 is fixedly connected to the end of the L-shaped rod 2013 away from bracket 201. A slider 2015 is movably sleeved on the outer side of the L-shaped rod 2013. An insert rod 2019 is fixedly connected to the side of the slider 2015 near the bottom block 2011. The end of the insert rod 2019 away from the slider 2015 abuts against the bottom block 2011. A side ring 2020 is fixedly connected to the side of the bottom block 2011 near the slider 2015. 9. Inserted into the side ring 2020, the L-shaped round rod 2013 has a limiting groove 2014 on its outer side. The inner side of the slider 2015 is fixedly connected to a limiting block 2016. The limiting block 2016 is slidably connected to the limiting groove 2014. When the slider 2015 slides on the outer side of the L-shaped round rod 2013, the limiting block 2016 slides in the limiting groove 2014 at the same time, thereby limiting the slider 2015 to ensure its stability during movement. The outer side of the side block 2017 is provided with a side plate 209. A movable rod 2018 is rotatably connected to the side away from the side block 2017. The end of the movable rod 2018 away from the side plate 209 is rotatably connected to the slider 2015. A rotating shaft 208 is fixedly connected to the side of the side plate 209 near the side block 2017. A drive assembly 3 is provided on the outside of the rotating shaft 208. The end of the rotating shaft 208 away from the side plate 209 passes through the side block 2017 and extends to the outside of the cabinet 1. A mounting bracket 207 is provided on the outside of the cabinet 1. The rotating shaft 208 is rotatably connected to the mounting bracket 207.

[0036] First, the rotating shaft 208 is rotated, causing the side plate 209 to rotate. The movable rod 2018 drives the slider 2015 to slide along the L-shaped round rod 2013, and drives the insertion rod 2019 to move horizontally until the insertion rod 2019 separates from the side ring 2020, releasing the fixation between the bottom block 2011 and the bracket 201. Then, the ammonia treatment hollow frame 202 and the hydrogen sulfide treatment hollow frame 203 are removed from the two brackets 201 respectively. Finally, the ammonia treatment hollow frame 202 and the hydrogen sulfide treatment hollow frame 203 are taken out from the inside of the cabinet 1 to replace the ammonia treatment layer 204 and the hydrogen sulfide treatment layer 205. The replaced ammonia treatment layer 204 and hydrogen sulfide treatment layer 205 can be regenerated by pyrolysis to release sulfur and ammonium salts, realizing resource recovery.

[0037] In Example 4, based on Example 1, the drive assembly 3 includes a U-shaped rod 301 fixed to the outside of the cabinet 1, a mounting bracket 207 fixedly connected to the U-shaped rod 301, a slide rod 302 fixedly connected to the inside of the U-shaped rod 301, a slide plate 309 movably sleeved on the outside of the slide rod 302, a toothed plate 303 fixedly connected to the side of the slide plate 309 near the rotating shaft 208, a gear 304 fixedly installed on the outside of the rotating shaft 208, the gear 304 meshing with the toothed plate 303, a screw 307 rotatably connected to the inner top wall of the U-shaped rod 301, a drive shaft 306 fixedly connected to the bottom end of the screw 307, the bottom end of the drive shaft 306 extending to the outside of the U-shaped rod 301 and fixedly connected to a handwheel 305, a threaded sleeve 308 threadedly sleeved on the outside of the screw 307, and the slide plate 309 fixed to the outside of the threaded sleeve 308.

[0038] First, rotate the handwheel 305, which drives the screw 307 to rotate via the drive shaft 306, and drives the slide plate 309 to slide along the slide bar 302 via the screw sleeve 308. At the same time, the toothed plate 303 moves longitudinally. Since the toothed plate 303 is meshed with the gear 304, the rotation of the rotating shaft 208 is finally achieved.

Claims

1. A device for removing hydrogen sulfide, ammonia, and water vapor from a power distribution cabinet in a wastewater treatment plant, comprising a cabinet (1), characterized in that: The cabinet (1) is equipped with a removal mechanism (2) inside, and a water vapor treatment module (4) is provided on the inner bottom wall of the cabinet (1). The removal mechanism (2) includes two supports (201) fixed inside the cabinet (1). Ammonia treatment perforated frame (202) and hydrogen sulfide treatment perforated frame (203) are respectively placed on the top of the two supports (201). The hydrogen sulfide treatment perforated frame (203) is located below the ammonia treatment perforated frame (202). An ammonia treatment layer (204) is provided inside the ammonia treatment perforated frame (202). The ammonia treatment layer (204) is located on the upper layer inside the cabinet (1), and the hydrogen sulfide treatment layer (205) is located on the middle layer inside the cabinet (1). The water vapor treatment module (4) is located on the lower layer inside the cabinet (1). The water vapor treatment module (4) is located between the ammonia treatment layer (204) and the hydrogen sulfide treatment layer (205). Below the treatment layer (205), the hydrogen sulfide treatment hollow frame (203) is provided with a hydrogen sulfide treatment layer (205); both of the brackets (201) are provided with relief grooves (206), and the inner sides of the two relief grooves (206) are fixedly connected with inner rods (2010); the bottom of the ammonia treatment hollow frame (202) and the hydrogen sulfide treatment hollow frame (203) are fixedly connected with bottom blocks (2011), and the two bottom blocks (2011) are respectively movably sleeved on the outside of the two inner rods (2010); the outer side of the inner rods (2010) is fixedly sleeved with a limiting cylinder (2012), and the bottom blocks (2011) abut against the limiting cylinder (2012); the bottom of the bracket (201) is fixedly connected with an L-shaped round rod (2013). A side block (2017) is fixedly connected to the end of the L-shaped round rod (2013) away from the bracket (201). A slider (2015) is movably sleeved on the outer side of the L-shaped round rod (2013). An insert rod (2019) is fixedly connected to the side of the slider (2015) near the bottom block (2011). The end of the insert rod (2019) away from the slider (2015) abuts against the bottom block (2011). A side ring (2020) is fixedly connected to the side of the bottom block (2011) near the slider (2015). The insert rod (2019) is inserted into the side ring (2020). A limiting groove (2014) is provided on the outer side of the L-shaped round rod (2013). A limiting block (2016) is fixedly connected to the inner side of the slider (2015). 6) Sliding connection with the limiting groove (2014); a side plate (209) is provided on the outer side of the side block (2017), and a movable rod (2018) is rotatably connected to the side of the side plate (209) away from the side block (2017). The end of the movable rod (2018) away from the side plate (209) is rotatably connected to the slider (2015); a rotating shaft (208) is fixedly connected to the side of the side plate (209) near the side block (2017). A drive assembly (3) is provided on the outer side of the rotating shaft (208). The end of the rotating shaft (208) away from the side plate (209) passes through the side block (2017) and extends to the outer side of the cabinet (1). A mounting bracket (207) is provided on the outer side of the cabinet (1). The rotating shaft (208) is rotatably connected to the mounting bracket (207). The ammonia treatment layer (204) is a phosphoric acid modified molecular sieve, which captures ammonia through the dual action of acid-base neutralization and physical adsorption. The hydrogen sulfide treatment layer (205) is biomass activated carbon loaded with nano copper oxide, which converts hydrogen sulfide into elemental sulfur or sulfate through surface oxidation reaction. The water vapor treatment module (4) includes a semiconductor cooling chip, a hydrophobic microchannel and a water collection tank. The semiconductor cooling chip lowers the temperature inside the cabinet (1) below the dew point. After the water vapor condenses, it is guided to the water collection tank through the hydrophobic microchannel for collection.

2. The device for removing hydrogen sulfide, ammonia, and water vapor from a wastewater treatment plant distribution cabinet according to claim 1, characterized in that: The drive assembly (3) includes a U-shaped rod (301) fixed to the outside of the cabinet (1), a mounting bracket (207) fixedly connected to the U-shaped rod (301), a slide rod (302) fixedly connected to the inside of the U-shaped rod (301), a slide plate (309) movably sleeved on the outside of the slide rod (302), a toothed plate (303) fixedly connected to the side of the slide plate (309) near the rotating shaft (208), a gear (304) fixedly installed on the outside of the rotating shaft (208), and the gear (304) meshing with the toothed plate (303).

3. The device for removing hydrogen sulfide, ammonia, and water vapor from a wastewater treatment plant distribution cabinet according to claim 2, characterized in that: A screw (307) is rotatably connected to the inner top wall of the U-shaped rod (301). A drive shaft (306) is fixedly connected to the bottom end of the screw (307). The bottom end of the drive shaft (306) extends to the outside of the U-shaped rod (301) and is fixedly connected to a handwheel (305). A threaded sleeve (308) is threaded onto the outside of the screw (307). A sliding plate (309) is fixed to the outside of the threaded sleeve (308).

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