Efficient anti-clogging three-layer packing chlorine washing tower

Abstract

The application discloses a high-efficiency anti-blocking three-layer filler chlorine washing tower, which comprises a tower body and a washing assembly, a sleeve is sleeved on a mounting column, and a plurality of flushing pipelines are distributed on the outer wall of the sleeve; a blocking prevention assembly is arranged in the flushing pipeline; the blocking prevention assembly comprises a plug, and the plug is slidingly assembled in the flushing pipeline; water stored in a water storage tank is softened or purified, the water in the water storage tank is drawn by a flushing water pump, the purified water is sent into a flushing pipeline, the purified water enters a branch pipeline from the flushing pipeline, the purified water enters a water supply pipeline from the branch pipeline, and finally the purified water enters the sleeve from the water supply pipeline and is discharged from the output end of the flushing pipeline to flush the spray head; and when the plug is in an initial position, the drain pipe is completely hidden in the flushing pipeline. When the flushing water pump is started and high-pressure water flow enters the flushing pipeline, the plug slides to the output end under the water flow thrust, at this time, the drain pipe extends out of the flushing pipeline, and the water discharged from the drain pipe is used for flushing the spray head.

Description

Technical Field

[0001] This invention belongs to the technical field of chlorine scrubbing towers, specifically relating to a high-efficiency anti-clogging three-layer packing chlorine scrubbing tower. Background Technology

[0002] In industries such as chlor-alkali chemical engineering, organic synthesis, and flue gas treatment, the purification of chlorine containing impurities is a crucial step in ensuring production safety, environmental protection, and the stable operation of downstream equipment. Chlorine scrubbing towers, as core purification equipment, typically employ a packed tower structure, achieving mass transfer, heat transfer, and impurity removal through countercurrent gas-liquid contact. The spray system is a vital component for ensuring uniform distribution of the scrubbing liquid and improving gas-liquid contact efficiency. However, in actual operation, the nozzles within the scrubbing tower are constantly exposed to harsh conditions involving impure chlorine and circulating scrubbing liquid. Dust entrained in the chlorine, crystalline salts generated during the reaction, and suspended solids in the scrubbing liquid easily deposit and scale at the spiral openings or nozzle orifices of the nozzles, leading to nozzle blockage, uneven spraying, reduced wetting of the packing layer, formation of localized dry zones, and decreased mass transfer efficiency. In severe cases, this can even exacerbate equipment corrosion and exceed emission standards.

[0003] There are two main solutions to the problem of nozzle clogging in existing technologies: one is to manually disassemble and clean the nozzles while the machine is stopped, but this method requires interrupting production, is labor-intensive and inefficient, and frequent disassembly and assembly can easily damage the equipment seals; the other is to install a fixed flushing pipeline inside the tower to flush the nozzles regularly, but because the flushing pipeline is exposed to the corrosive environment inside the tower for a long time, its outlet end is easily blocked by impurities, causing the flushing function to fail. In addition, the fixed flushing pipeline often has spatial interference with the working area of ​​the nozzle, affecting the uniformity of spraying. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency, anti-clogging three-layer packed chlorine scrubbing tower to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency anti-clogging three-layer packing chlorine scrubbing tower includes a tower body and a scrubbing assembly. A diversion pipe is fixedly connected inside the tower body. Several branch pipes are distributed on the diversion pipe. Several mounting columns are distributed on both the branch pipes and the diversion pipe. Spray nozzles are threadedly connected to the mounting columns. The cleaning assembly includes a sleeve that is fitted onto the mounting post. Several flushing pipes are distributed on the outer wall of the sleeve. A water supply pipe is connected inside the sleeve. One end of the water supply pipe is connected to a branch pipe. A sealing plate is installed on the sleeve. An anti-clogging component is installed inside the flushing pipe. The anti-clogging component includes a plug, which is slidably assembled inside the flushing pipe. Several drain pipes are provided on the plug. The plug is displaced under the impact of water flow inside the flushing pipe, so that the drain pipes are exposed outside the flushing pipe to flush the nozzle.

[0006] Preferably, a circulating water tank is fixedly connected to the bottom of the tower body, a circulating water pump is fixedly installed on one side of the circulating water tank, and a spray pipe is connected to the output end of the circulating water pump. The spray pipe is connected to the diversion pipe. One end of the branch pipe is connected to a flushing pipe, the bottom of the flushing pipe is connected to a flushing water pump, and the input end of the flushing water pump is connected to a water storage tank.

[0007] Preferably, the water supply pipe is a ring pipe, and the installation columns are distributed and arranged within the ring path of the water supply pipe.

[0008] Preferably, the nozzle adopts a spiral nozzle structure, the number of spirals of the nozzle is three turns, and there are three flushing pipes in total, with the water outlet of each flushing pipe inclined sequentially corresponding to the spiral opening of the nozzle.

[0009] Preferably, the outer wall of the sleeve is connected to two joint pipes, and one end of the joint pipe is provided with a connecting pipe, which is connected to the water supply pipe.

[0010] Preferably, the drain pipe has an inlet, the bottom of the flushing pipe is fixedly connected to a sealing block, the sealing block has an opening for fitting the drain pipe, and the bottom of the sealing block is fixedly connected to a partition.

[0011] Preferably, the lower end of the water inlet is provided with a spiral groove, and the bottom end of the spiral groove is provided with a pointed water outlet.

[0012] Preferably, the partition is a flexible material layer that can be pierced by a pointed water outlet.

[0013] Preferably, a return spring is fitted onto the drain pipe, with its two ends fixed to the sealing block and the plug, respectively.

[0014] Preferably, the opening is filled with a spacer layer.

[0015] The technical solution of this invention has the following beneficial effects: 1. The water storage tank contains softened or purified water. A flushing pump draws water from the storage tank and sends the purified water into the flushing pipe. From there, the water enters a branch pipe, then the supply pipe, and finally exits through the inlet sleeve and out of the flushing pipe's output end to flush the nozzles. The flushing pipe is located above the spiral nozzle; this placement prevents the flushing pipe from interfering with the operation of the spiral nozzle, ensuring that the two systems function independently.

[0016] 2. When the plug is in its initial position, the drain pipe is completely concealed inside the flushing pipe. At this time, the end face of the plug is flush with or slightly recessed from the outlet end of the flushing pipe to prevent the drain pipe from being exposed and causing impurities to enter and clog it when not flushing. When the flushing water pump starts and high-pressure water enters the flushing pipe, the plug slides towards the outlet end under the thrust of the water flow. At this time, the drain pipe extends outside the flushing pipe, and the water discharged from the drain pipe flushes the nozzle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the interior of the tower body of the present invention.

[0021] Figure 4 This is a partial structural diagram of the filler layer of the present invention.

[0022] Figure 5 This is a diagram showing the installation position of the cleaning component of the present invention.

[0023] Figure 6 This is a partial structural diagram of the cleaning component of the present invention.

[0024] Figure 7 This is a schematic diagram of the planar structure of the cleaning component of the present invention.

[0025] Figure 8 This is a partial structural diagram of the cleaning component of the present invention.

[0026] Figure 9 This is a schematic diagram of the sleeve installation position according to the present invention.

[0027] Figure 10 This is a schematic diagram of the internal cross-section of the cleaning component of the present invention.

[0028] Figure 11This is a cross-sectional installation diagram of the cleaning component of the present invention.

[0029] Figure 12 This is a schematic diagram showing the position and status of the flushing pipeline according to the present invention.

[0030] Figure 13 This is a schematic cross-sectional view of the flushing pipeline of the present invention.

[0031] Figure 14 This is an enlarged view of point A in the present invention.

[0032] Figure 15 This is a disassembled assembly diagram of the plug of the present invention.

[0033] Reference numerals: 10. Tower body; 101. Demisting layer; 102. Air outlet; 103. Circulating water tank; 104. Circulating water pump; 105. Packing layer; 106. Reinforcing frame; 107. Support grid; 108. Spray pipe; 109. Diversion pipe; 110. Branch pipe; 111. Mounting column; 112. Spray head; 20. Cleaning assembly; 201. Water storage tank; 202. Flushing water pump; 203. Flushing pipe; 204. 205. Branch pipe; 206. Water supply pipe; 207. Sleeve; 208. Flushing pipe; 209. Connecting pipe; 210. Joint pipe; 30. Sealing plate; 30. Anti-clogging component; 301. Plug; 302. Inlet; 303. Spiral groove; 304. Tip outlet; 305. Return spring; 306. Sealing block; 307. Partition; 308. Opening; 309. Drain pipe; 40. Reinforcing column; 401. Suspension rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0035] Example 1: refer to Figure 1 A high-efficiency anti-clogging three-layer packing chlorine scrubbing tower includes a tower body 10 and a cleaning assembly 20. A diversion pipe 109 is fixedly connected inside the tower body 10. Several branch pipes 110 are distributed on the diversion pipe 109. Several mounting columns 111 are distributed on both the branch pipes 110 and the diversion pipe 109. Spray nozzles 112 are threadedly connected to the mounting columns 111. In this embodiment of the invention, a packing layer 105 is provided inside the tower body 10. Above the tower body 10 is a demister layer 101, and above the demister layer 101 is an air outlet 102, which is fixedly connected to the tower body 10 for discharging the washed and purified gas. Below the demister layer 101, three packing layers 105 are arranged in parallel vertically. All three packing layers 105 are filled using a combination of structured and loose packing materials, with the lower packing material having a larger particle size than the upper packing material, forming a gradient filtration structure that effectively intercepts solid impurities carried in the chlorine gas and reduces the risk of clogging. Each packing layer 105 includes a reinforcing frame 106, with a supporting grid 107 fixedly connected above the reinforcing frame 106. Each packing layer also has a supporting grid 107 at its bottom, which is welded and fixed to the inner wall of the tower body 10. A porous ceramic plate is laid on top of the grid to support the packing material and allow the washing liquid to pass smoothly.

[0036] The cleaning assembly 20 includes a sleeve 206, which is fitted onto the mounting post 111. Several flushing pipes 207 are distributed on the outer wall of the sleeve 206. A water supply pipe 205 is connected inside the sleeve 206. One end of the water supply pipe 205 is connected to a branch pipe 204. A sealing plate 210 is sealed on the sleeve 206. One end of the branch pipe 204 is connected to a flushing pipe 203. A flushing water pump 202 is connected to the bottom of the flushing pipe 203. The input end of the flushing water pump 202 is connected to a water storage tank 201.

[0037] In the embodiments of the present invention, reference is made to Figures 1-11 The sleeve 206 is concentrically assembled and fixed to the mounting post 111. For the installation of the sleeve 206 and the nozzle 112, the sleeve 206 and mounting post 111 must first be fixedly assembled. Then, the nozzle 112 is screwed tightly inside the mounting post 111. Specifically, refer to section 9. The bottom of the nozzle 112 has a hexagonal nut structure. The hexagonal nut of the nozzle 112 presses against the rotating connection of the sleeve 206, thus preventing the sleeve 206 from falling off the mounting post 111. The water storage tank 201 contains softened or purified water. The flushing water pump 202 draws water from the water storage tank 201 and sends the purified water into the flushing pipe 203. From the flushing pipe 203, the water enters the branch pipe 204, then the water supply pipe 205, and finally, the water enters the sleeve 206 and exits from the output end of the flushing pipe 207 to flush the nozzle 112. The flushing water pump 202 is a high-pressure multistage centrifugal pump with a rated operating pressure of 1.5-3.0 MPa and a flow rate of 10-25 m³ / h. 3 / h, pressure gradation control can be achieved through frequency conversion adjustment.

[0038] Secondly, the water storage tank 201 is equipped with an electric heating device to maintain the rinsing water temperature at 40-60℃, thereby improving the dissolution and removal effect on organic impurities and crystals. The water storage tank 201 is also equipped with an automatic water replenishment valve and a liquid level sensor to ensure the stability of water supply for continuous rinsing operations.

[0039] An anti-clogging component 30 is installed inside the flushing pipe 207. The anti-clogging component 30 includes a plug 301, which is slidably mounted inside the flushing pipe 207. Several drain pipes 309 are provided on the plug 301. The plug 301 is displaced under the impact of the water flow inside the flushing pipe 207, so that the drain pipes 309 are exposed outside the flushing pipe 207 to flush the nozzle 112.

[0040] In this embodiment of the invention, the plug 301 has an overall cylindrical structure and is made of polytetrafluoroethylene. Its outer diameter and the inner diameter of the flushing pipe 207 form a precise sliding fit to ensure that the plug 301 can move smoothly under the impact of water flow.

[0041] Drain pipes 309 are evenly arranged around the circumference of the plug 301, with 4-6 pipes in total. In this embodiment, 4 pipes are preferred, and the included angle between adjacent drain pipes 309 is 90°. When the plug 301 is in its initial position, the drain pipes 309 are completely concealed inside the flushing pipe 207. At this time, the end face of the plug 301 is flush with or slightly recessed from the outlet end of the flushing pipe 207 to prevent the drain pipes 309 from being exposed and causing impurities to enter and block them when not flushing. When the flushing water pump 202 is started and high-pressure water enters the flushing pipe 207, the plug 301 slides towards the outlet end under the thrust of the water flow. At this time, the drain pipes 309 extend outside the flushing pipe 207, and the water discharged from the drain pipes 309 flushes the nozzle 112.

[0042] Regarding the control of the flushing operation procedure, this embodiment adopts an intermittent pulse flushing mode. A single flushing cycle includes: a startup phase running at a low pressure of 1.5 MPa for 10 seconds, allowing the plug 301 to slowly move forward and establish a stable seal; a pressurization phase increasing the pressure to 2.5-3.0 MPa within 3 seconds, causing the plug 301 to quickly reach its position, and water spraying from the drain pipe 309 for powerful flushing; a maintenance phase maintaining high pressure for 10-15 seconds; and finally, shutting off the flushing pump 202 after flushing. This pulse mode saves more than 30% of water compared to continuous constant pressure flushing, and the periodic pressure changes help loosen stubborn deposits, improving flushing efficiency. Secondly, the water sprayed from the drain pipe 309 can be low-temperature diluted chlorine water / softened water, used for low-pressure continuous / intermittent spraying to dissolve salt. This solution dissolves the newly attached thin salt layer in advance without stopping the machine or disassembling the nozzle, preventing hardening and clogging.

[0043] In summary: chlorine gas containing impurities enters the bottom of the tower body 10 through the gas distributor, passes through three layers of packing 105 in sequence, and comes into full contact with the washing liquid sprayed from top to bottom, completing the mass transfer, heat transfer and impurity removal process; the purified gas is discharged from the air outlet 102 after the entrained droplets are removed by the demister layer 101.

[0044] A circulating water tank 103 is fixedly connected to the bottom of the tower body 10. A circulating water pump 104 is fixedly installed on one side of the circulating water tank 103. The output end of the circulating water pump 104 is connected to a spray pipe 108, and the spray pipe 108 is connected to a diversion pipe 109.

[0045] In this implementation plan, refer to Figure 1 The circulating water pump 104 pumps the washing liquid from the circulating water tank 103 to the spray pipe 108, and then distributes it evenly above each layer of packing material via the distribution pipe 109, forming a liquid film covering the material from top to bottom. Under gravity, the washing liquid flows sequentially through the three layers of packing material 105, coming into countercurrent contact with the rising chlorine gas containing impurities. The first layer of packing material 105 uses structured corrugated packing material with a specific surface area of ​​350 m² / g. 2 / m 3 The first layer primarily removes solid particles larger than 50μm and some water-soluble impurities from chlorine gas. The second layer, 105, uses a combined packing material, with a stepped ring bulk packing in the lower layer and a wire mesh corrugated packing in the upper layer. The turbulence-promoting effect of the stepped rings and the high specific surface area of ​​the wire mesh are used to synergistically enhance mass transfer and specifically remove acidic gas impurities. The third layer, 105, uses a high-throughput perforated plate corrugated packing with an opening rate greater than 12%, which reduces pressure drop while ensuring uniform liquid phase distribution to complete the final fine washing.

[0046] The water supply pipe 205 is a ring pipe, and the installation columns 111 are distributed and set in the ring path of the water supply pipe 205.

[0047] In the embodiments of the present invention, reference is made to Figures 4-7 A sleeve 206 is installed on the mounting post 111. The sleeve 206 is made of polytetrafluoroethylene (PTFE), with a smooth inner wall and excellent corrosion resistance, effectively resisting long-term erosion by chlorine-containing media and acidic detergents. Because the mounting posts 111 are distributed within the annular path of the water supply pipe 205, the water supply pipe 205 can completely cover each sprinkler head 112.

[0048] The nozzle 112 adopts a spiral nozzle structure with three spirals. There are three flushing pipes 207, and the water outlet of each flushing pipe 207 is inclined to correspond to the spiral opening of the nozzle 112.

[0049] In the embodiments of the present invention, reference is made to Figure 12The bold dashed line in the diagram represents the inclined direction of the output end of the flushing pipe 207, corresponding to the spiral opening of the nozzle 112. This inclined arrangement ensures that the high-pressure flushing fluid can cut into the internal flow channel of the nozzle 112 along the spiral tangent, forming a strong flushing effect and effectively removing crystalline scale and solid deposits adhering to the inner wall of the spiral flow channel. The three-ring spiral structure, combined with the corresponding arrangement of the three flushing pipes, ensures that each spiral flow channel receives independent directional flushing, avoiding the blind spot problem of traditional single-point flushing. Furthermore, the spiral nozzle is a coreless, bladeless, large-channel open structure without small cavities or complex flow channels, effectively preventing salt spray crystallization and impurity particle blockage. The liquid forms a multi-layered umbrella-shaped atomized cone along the spiral surface, resulting in a large spray area and uniform coverage, allowing for full contact with the three layers of packing and improving washing and cooling efficiency. The resulting droplet size is moderate, ensuring both gas-liquid contact area and preventing excessive demister load at the top of the tower or chlorine-laden liquid due to excessively fine droplets.

[0050] Secondly, refer to Figure 12 The flushing pipe 207 is located above the spiral nozzle 112. This position avoids the flushing pipe 207 from affecting the operation of the spiral nozzle 112, thus ensuring that the operation of the spiral nozzle 112 and the flushing pipe 207 do not interfere with each other.

[0051] The outer walls of the sleeve 206 are connected to the joint pipes 209 on both sides. One end of the joint pipe 209 is provided with a connecting pipe 208, which is connected to the water supply pipe 205.

[0052] In this implementation plan, refer to Figures 8-11 Two connector pipes 209 are connected to the inside of the sleeve 206, and two connecting pipes 208 are connected to the water supply pipe 205. The two connecting pipes 208 ensure the stability of the sleeve 206, preventing it from shaking on the mounting column 111 and improving operational stability. Water from inside the water supply pipe 205 enters the connecting pipes 208 and then enters the sleeve 206 through the connector pipes 209.

[0053] Example 2: The drain pipe 309 has an inlet 302 inside, and a sealing block 306 is fixedly connected to the bottom of the flushing pipe 207. The sealing block 306 has an opening 308 for adapting to the drain pipe 309, and a partition 307 is fixedly connected to the bottom of the sealing block 306.

[0054] In this embodiment of the invention, the sealing block 306 is used to restrict the plug 301, preventing it from detaching from the flushing pipe 207 due to water pressure. The drain pipe 309 is initially positioned inside the opening 308. When there is sufficient water pressure inside the flushing pipe 207, the drain pipe 309 will pierce the partition 307. The partition 307 prevents impurities from entering the opening 308. Even if the surface of the partition 307 is covered with impurities, it will not affect the flushing function of the drain pipe 309, because the drain pipe 309 can directly penetrate the partition 307 for drainage under water pressure. The partition 307 is made of a permeable thin film material, which can both provide isolation and protection without hindering the normal operation of the drain pipe 309.

[0055] The lower end of the inlet 302 is provided with a spiral groove 303, and the bottom end of the spiral groove 303 is provided with a pointed outlet 304.

[0056] In this implementation plan, refer to Figure 14 The thickened spiral line in the diagram represents the cut shape of the spiral groove 303. As the water pressure inside the flushing pipe 207 gradually increases, the plug 301 experiences downward pressure, causing the drain pipe 309 to move downwards simultaneously. The tip outlet 304 of the drain pipe 309 has good penetrating ability, successfully piercing the partition 307. At this point, the tip outlet 304 of the drain pipe 309 is exposed outside the flushing pipe 207, and water flows from the tip outlet 304 onto the spiral opening of the nozzle 112, thus cleaning the nozzle 11. After the drain pipe 309 pierces the partition 307, its outer wall maintains a sealed fit with the opening 308, ensuring that water does not leak from the gap between the opening 308 and the drain pipe 309, thus guaranteeing the stability of the flushing water pressure.

[0057] Here, the spiral groove 303 is designed as a flow guiding structure. When water flows in the spiral groove 303, centrifugal force is generated due to inertia. The axial component of the centrifugal force pushes the movable block forward, ensuring sufficient thrust to displace the plug 301. It should be noted that this invention uses multiple drain pipes 309, and each drain pipe 309 has a spiral groove 303 inside. The multi-head spiral can balance the thrust and reduce pulsation. The preferred number of spiral heads is 2-4. In actual processing and use, the number of spiral turns is required, but it is not a fixed value. It needs to be determined comprehensively based on your axial displacement requirements, spiral angle, spatial length, and thrust magnitude. The more turns, the longer the water flow path in the spiral groove, and the longer the time for the water to apply axial thrust to the movable block, theoretically generating a larger total impulse. Here, the number of spiral turns n is usually determined by the distance the movable block needs to move (stroke L) and the spiral lead (P): n = .

[0058] The partition 307 is a flexible material layer that can be pierced by the pointed water outlet 304.

[0059] In this embodiment, the partition 307 is made of elastic materials such as rubber or silicone, with a thickness controlled within the range of 0.5-1 mm. This ensures both a good sealing and isolation effect under normal conditions and controllable rupture when subjected to the concentrated puncture force of the pointed outlet 304. The outer periphery of the partition 307 is fixedly connected to the inner wall of the flushing pipe 207 by heat pressing or bonding, while the central area remains suspended, forming a pre-tensioned structure similar to a diaphragm. This design allows the partition 307 to withstand the normal working pressure of 0.3-0.5 MPa inside the flushing pipe 207 without deformation or leakage when it is not punctured. When the plug 301 moves the drain pipe 309 downward, the pointed outlet 304 contacts the partition 307. Due to the pressure concentration effect generated by the pointed structure, the partition 307 experiences stress concentration at the puncture point and cracks rapidly, forming a through hole that matches the outer contour of the pointed outlet 304. After puncture, the elastic material of the partition 307 shrinks and deforms at the edge of the hole, tightly wrapping around the outer cylindrical surface of the drain pipe 309, achieving a dynamic seal by utilizing the material's own resilience. This flexible sealing structure allows the drain pipe 309 to maintain reliable sealing performance within an axial displacement range of 0-5 mm, while not causing significant frictional resistance to the vertical movement of the drain pipe 309, ensuring that the plug 301 can respond sensitively to changes in water pressure within the flushing pipe 207. The material selection for the partition 307 also needs to consider chlorine corrosion resistance, prioritizing elastomers such as fluororubber or neoprene rubber that are resistant to chemical media corrosion, to extend its service life in chlorine-containing working environments.

[0060] A return spring 305 is fitted on the drain pipe 309, and the two ends of the return spring 305 are fixed to the sealing block 306 and the plug 301 respectively.

[0061] In the embodiments of the present invention, reference is made to Figure 14 and Figure 15The return spring 305 provides appropriate preload when the plug 301 is in the closed position, ensuring that the tip outlet 304 remains disconnected from the partition 307, preventing accidental contact or leakage during non-operational periods. When the water pressure in the flushing pipe 207 rises to a set threshold, the resultant force of the water pressure acting on the upper surface of the plug 301 overcomes the preload of the return spring 305, pushing the plug 301 and causing the drain pipe 309 to move downwards. When the water pressure decreases or the flushing process ends, the elastic restoring force of the return spring 305 drives the plug 301 and the drain pipe 309 back to their initial positions, achieving automatic reset. The return spring 305 is made of stainless steel wire with a passivated surface to resist corrosion from chlorine and acidic condensate, ensuring stable elastic performance and fatigue life during frequent reciprocating motion. Each drain pipe 309 is fitted with a return spring 305 to balance the pressure. It should be noted that the elastic coefficient of the return spring 305 needs to consider both the return and compression elastic coefficients, and the specific coefficient should be designed and used according to the actual working conditions. After flushing, as the water pressure inside the flushing pipe 207 decreases, the plug 301, under the action of the return spring 305, moves the drain pipe 309 back to its initial position. The damaged area formed after the partition 307 is punctured will not affect the next flushing operation because the puncture position of the drain pipe 309 is relatively fixed, and the damaged edge of the partition 307 can still form a certain sealing effect on the outer wall of the drain pipe 309 under the action of elasticity.

[0062] Example 3: The opening 308 is filled with a spacer layer.

[0063] In this embodiment of the invention, the spacer layer is filled with a material that further prevents impurities from clogging the pipe. Preferably, it is made of cotton material, which does not affect the puncture effect of the pointed outlet 304 and allows for rapid rebound after puncture, maintaining a tight wrap around the outer wall of the drain pipe 309. The natural porous structure of cotton fibers gives it excellent water absorption and air permeability. When the spacer layer 307 is punctured, the cotton spacer layer can effectively absorb residual acidic condensate, preventing it from accumulating and crystallizing at the edge of the opening 308, thus avoiding obstruction of the reciprocating movement of the drain pipe 309 by crystals. Furthermore, after anti-corrosion treatment, the cotton material's resistance to chlorine corrosion is significantly improved, enabling it to maintain structural integrity during long-term operation of the scrubbing tower.

[0064] The thickness of the spacer layer is controlled within the range of 3-5 mm. If it is too thin, it will not provide effective buffering and sealing; if it is too thick, it will affect the smoothness of puncture through the drain pipe 309. A layered compaction process is used during filling to ensure uniform distribution of cotton fibers and no areas with significant density differences. The spacer layer is fixed to the inner wall of the opening 308 with an acid-resistant adhesive. A silicone-based sealant is used, and the elastic adhesive layer formed after curing prevents displacement of the spacer layer under high-pressure washing without restricting the elastic recovery characteristics of the cotton fibers.

[0065] In actual operation, when the drain pipe 309 punctures downwards, the cotton spacer layer is smoothly cut by the pointed outlet 304, and the fibers unfold naturally along the puncture direction without significantly increasing the puncture resistance. When the drain pipe 309 moves back to its original position, the cotton fibers rely on their own elasticity to regroup and fill the gap formed by the puncture, forming a dynamic sealing barrier together with the damaged edge of the spacer layer 307. This structural design allows the opening 308 to maintain basic protective performance even after multiple punctures.

[0066] Example 4: The bottom of the reinforcement frame 106 is fixedly connected to a reinforcement column 40, and a suspension rod 401 is threadedly connected to the reinforcement column 40.

[0067] In this implementation plan, refer to Figure 5 The reinforcing column 40 is welded and fixed to the reinforcing frame 106. Its suspension rod 401 has a U-shaped structure. The suspension rod 401 is used to support the water supply pipe 205 below, thereby improving the stability of the water supply pipe 205.

[0068] The specific implementation process of this invention is as follows: The chlorine gas containing impurities enters the bottom of the tower body 10 through the gas distributor, passes through three layers of packing 105 in sequence, and comes into full contact with the washing liquid sprayed from top to bottom to complete the mass transfer, heat transfer and impurity removal process; the purified gas is discharged from the air outlet 102 after the entrained droplets are removed by the demister layer 101.

[0069] The water storage tank 201 contains softened or purified water. The flushing water pump 202 draws water from the water storage tank 201 and sends the purified water into the flushing pipe 203. From the flushing pipe 203, the water enters the branch pipe 204 and then the water supply pipe 205. The water in the water supply pipe 205 enters the connecting pipe 208 and then the sleeve 206 through the connector pipe 209. Finally, the water is discharged from the output end of the flushing pipe 207 to flush the nozzle 112.

[0070] When the water pressure in the flushing pipe 207 rises to the set threshold, the resultant force of the water pressure acting on the upper end face of the plug 301 overcomes the preload of the return spring 305, pushing the plug 301 to move the drain pipe 309 downward. The tip outlet 304 of the drain pipe 309 has good penetrating ability and can easily pierce the partition 307. At this time, the tip outlet 304 of the drain pipe 309 is exposed outside the flushing pipe 207, and the water flow is sprayed from the tip outlet 304 onto the spiral opening of the nozzle 112 to clean the nozzle 11. When the water pressure decreases or the flushing program ends, the elastic restoring force of the return spring 305 drives the plug 301 and the drain pipe 309 back to the initial position, realizing automatic reset.

[0071] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Various modifications or equivalent substitutions can be made to the present invention within its spirit and scope of protection. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

[0072] In the description of this invention, it should be noted that the terms "inner," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the appended circle, or the orientation or positional relationship in which the product of this invention is conventionally placed during use. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, these terms indicating orientation or positional relationships should not be construed as limitations on the invention.

[0073] In the description of this invention, it should be further noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, these terms can refer to a fixed connection, a detachable connection, or an integral connection between elements; they can also refer to a mechanical connection or an electrical connection; or they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

Claims

1. A high-efficiency anti-clogging three-layer packed chlorine scrubbing tower, characterized in that... The system includes a tower body (10) and a cleaning assembly (20). A diversion pipe (109) is fixedly connected inside the tower body (10). Several branch pipes (110) are distributed on the diversion pipe (109). Several mounting posts (111) are distributed on both the branch pipes (110) and the diversion pipe (109). A nozzle (112) is threaded onto the mounting post (111). The cleaning assembly (20) includes a sleeve (206), which is sleeved on the mounting post (111). The outer wall of the sleeve (206) is distributed with several flushing pipes (207). A water supply pipe (205) is connected inside the sleeve (206). One end of the water supply pipe (205) is connected to a branch pipe (204). A sealing plate (210) is sealed on the sleeve (206). An anti-clogging component (30) is installed inside the flushing pipe (207). The anti-clogging component (30) includes a plug (301). The plug (301) is slidably assembled inside the flushing pipe (207). Several drain pipes (309) are provided on the plug (301). The plug (301) is displaced under the impact of water flow inside the flushing pipe (207), so that the drain pipes (309) are exposed outside the flushing pipe (207) to flush the nozzle (112).

2. The high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 1, characterized in that: A circulating water tank (103) is fixedly connected below the tower body (10). A circulating water pump (104) is fixedly installed on one side of the circulating water tank (103). The output end of the circulating water pump (104) is connected to a spray pipe (108). The spray pipe (108) is connected to the diversion pipe (109). One end of the branch pipe (204) is connected to a flushing pipe (203), the bottom of the flushing pipe (203) is connected to a flushing water pump (202), and the input end of the flushing water pump (202) is connected to a water storage tank (201).

3. The high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 1, characterized in that: The water supply pipe (205) is a ring pipe, and the installation columns (111) are distributed and arranged in the ring path of the water supply pipe (205).

4. The high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 3, characterized in that: The nozzle (112) adopts a spiral nozzle structure, and the number of spirals of the nozzle (112) is three turns. There are three flushing pipes (207), and the water outlet of each flushing pipe (207) is inclined to correspond to the spiral opening of the nozzle (112).

5. The high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 4, characterized in that: The outer walls of the sleeve (206) are connected to the connector pipes (209) on both sides. One end of the connector pipe (209) is provided with a connecting pipe (208), which is connected to the water supply pipe (205).

6. The high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 5, characterized in that: The drain pipe (309) has an inlet (302) inside. The bottom of the flushing pipe (207) is fixedly connected to a sealing block (306). The sealing block (306) has an opening (308) for fitting the drain pipe (309). The bottom of the sealing block (306) is fixedly connected to a partition (307).

7. A high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 6, characterized in that: The lower end of the inlet (302) is provided with a spiral groove (303), and the bottom end of the spiral groove (303) is provided with a pointed outlet (304).

8. A high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 7, characterized in that: The partition (307) is a flexible material layer and can be pierced by the pointed water outlet (304).

9. A high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 8, characterized in that: A return spring (305) is fitted on the drain pipe (309), and the two ends of the return spring (305) are fixed on the sealing block (306) and the plug (301) respectively.

10. A high-efficiency anti-clogging three-layer packed chlorine scrubbing tower according to claim 9, characterized in that: The opening (308) is filled with a spacer layer.

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