Online leaking stoppage device and leaking stoppage method for desulfurizing absorption tower
Through the online plugging device and method, the large flow leakage seam of the desulfurization absorption tower is sealed using a cover, a suction tube and an adhesive, which solves the problem of the existing technology that it is difficult to seal the large flow leakage seam without stopping the machine, and achieves efficient plugging and sealing.
Patent Information
- Application Number
- CN202510870105.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2025-09-19
AI Technical Summary
It is difficult to effectively seal large flow leakage seams in desulfurization absorption towers without shutting down the existing technology, and conventional methods are difficult to effectively seal under pressure.
An online leak plugging device is used, including a cover, a liquid suction tube, a negative pressure machine, an adsorption device and a connecting belt. The liquid is absorbed by negative pressure and the leaking area is cleaned and polished. The sealing cover is fixed with adhesive and sealed with sealant.
It achieves efficient plugging of the desulfurization absorption tower without stopping the production, avoids production interruption, reduces economic losses, and effectively seals large flow leakage seams.
Smart Images
Figure CN120662087A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of leak-plugging devices, and in particular to an online leak-plugging device and a leak-plugging method for a desulfurization absorption tower. Background Art
[0002] In industrial production, desulfurization absorber towers are critical equipment, shouldering the heavy responsibility of removing sulfides from gases. However, over long-term use, desulfurization absorber walls often develop problems due to a variety of complex factors, with corrosion being a major cause of damage. Due to the harsh operating environment within desulfurization absorber towers, the tower walls are constantly exposed to corrosive media such as desulfurization slurry and dusty flue gases. This gradually erodes the tower walls, weakening them and leading to breakage, cracks, and gaps.
[0003] When leaks and gaps appear, the harm they cause cannot be underestimated. On the one hand, the leaked slurry may corrode and damage surrounding equipment and facilities, affecting the normal operation of the entire production system; on the other hand, it may also cause environmental pollution and violate environmental protection requirements.
[0004] For small-diameter leaks, conventional plugging methods can usually be used during equipment operation, such as direct plugging with quick-setting materials. However, when faced with large-flow leaks, online plugging is extremely difficult. This is because large-flow leaks generate high pressure, which ordinary plugging materials and methods cannot withstand, and it is difficult to guarantee the plugging effect under pressure. If the equipment is shut down for plugging, the entire production process will be interrupted, which will undoubtedly cause huge economic losses to the company. Therefore, there is an urgent need to develop an online plugging device specifically for large-flow leaks. Summary of the Invention
[0005] The object of the present invention is to provide an online leak plugging device and a leak plugging method for a desulfurization absorption tower, which can efficiently plug leaks at the tower wall without stopping the tower.
[0006] The present invention is achieved through the following technical solutions: The online leak-plugging device for a desulfurization absorption tower of the present invention includes a tower body, a leakage seam provided on the outer wall of the tower body, a cover body attached to the outer wall of the absorption tower body, a liquid suction pipe connected to the cover body, a negative pressure machine connected to the liquid suction pipe, a sealing cover provided on the outer wall of the tower body, a clearance hole opened at the upper end of the sealing cover, a pair of adsorption devices respectively provided on both sides of the cover body, and a connecting belt for connecting the pair of adsorption devices; the upper end of the cover body is an open end, and the cover body is provided directly below the leakage seam; the cover body and the leakage seam are both provided in the sealing cover, and the liquid suction pipe is provided through the clearance hole.
[0007] Furthermore, the lower end of the cover body is a conical structure that is larger at the top and smaller at the bottom; and the end of the liquid suction tube away from the negative pressure machine is arranged at the lower end inside the cover body.
[0008] Furthermore, the adsorption device includes a fixed block attached to the outer wall of the tower body, a suction cup provided on the side of the fixed block close to the tower body, and a connecting rod provided on the side of the fixed block away from the tower body; the suction cup is used to be adsorbed on the outer wall of the tower body, and the two ends of the connecting belt are respectively connected to a pair of connecting rods.
[0009] Furthermore, the pair of fixing blocks are located at the same height, and the connecting rod is vertically arranged.
[0010] Furthermore, the connecting belt is made of elastic material.
[0011] Furthermore, a pair of U-shaped first clamping blocks are provided on the side of the cover away from the tower body, and the opening sides of the first clamping blocks are arranged toward the side away from the tower body; the connecting belt is detachably clamped in the first clamping blocks.
[0012] Furthermore, a pair of U-shaped second clamping blocks are provided on the side of the sealing cover away from the tower body, and the opening sides of the second clamping blocks are arranged toward the side away from the tower body; the connecting belt is detachably clamped in the second clamping blocks.
[0013] Furthermore, a clamping ring is fixedly provided on the inner wall of the cover body, and the pipette is detachably clamped in the clamping ring.
[0014] The present invention also provides a leak plugging method based on the above-mentioned online leak plugging device for a desulfurization absorption tower, comprising the following steps: (1) Adsorb a pair of fixing blocks on both sides of the leakage hole on the outer wall of the tower body through suction cups, then stick the cover body just below the leakage hole on the outer wall of the tower body, and clamp the connecting belt on the first clamping block. At this time, the liquid overflowing from the leakage hole enters the cover body, start the negative pressure machine, and suck away the liquid flowing into the cover body through the suction pipe; (2) Clean and polish the outer wall of the tower body outside the cover, and then apply adhesive to the outer side of the connection between the cover and the tower body; (3) Pass the pipette through the hole in advance, remove the connecting belt from the first block, and then evenly apply adhesive on the side of the sealing cover close to the tower body. Then, fit the sealing cover to the outer wall of the tower body so that the cover body is in the sealing cover, and clamp the connecting belt on the second block; (4) After the adhesive on the sealing cover solidifies, remove the pipette from the cover body and the clearance hole, then inject sealant into the cover body through the clearance hole, and finally use the sealant to block the clearance hole; (5) Remove the connecting belt from the second block, and then remove the pair of adsorption devices from the tower body.
[0015] Furthermore, the type of sealant in step (4) is silicone rubber.
[0016] The technical solution of the present invention has at least the following advantages and beneficial effects: the online leak-plugging device and leak-plugging method for a desulfurization absorption tower of the present invention, when in use, first stick the cover body under the leakage seam, and at the same time, adsorb a pair of adsorption devices on both sides of the cover body by negative pressure (a pair of adsorption devices are connected by a connecting belt), so that the liquid overflowing from the leakage seam can flow into the cover body and be discharged through the suction pipe and the negative pressure machine to prevent it from flowing to other places on the outer wall of the tower body, and then the place where the liquid flows through the outer wall of the tower body can be cleaned and polished, and then the cover body is temporarily fixed to the outer wall of the tower body using an adhesive. During this process, the connecting belt can be pressed on the outer wall of the cover to prevent it from falling off, and then the sealing cover is covered on the outer wall of the tower body with an adhesive (the cover body is in the sealing cover), the suction pipe is pulled out, and then sealant is injected into the sealing cover and the cover body through the clearance hole to seal the leakage hole and fill the entire sealing cover, so that the adsorption tower can be plugged during its operation and can effectively seal long cracks, large leakage holes, large leakages and other leakages. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic structural diagram of an online leak plugging device for a desulfurization absorption tower according to an embodiment of the present invention is provided in one state during use; Figure 2 A schematic structural diagram of the two states of the online leak plugging device for a desulfurization absorption tower provided in Example 1 of the present invention when in use; Figure 3 A schematic structural diagram of the three states of the online leak plugging device for a desulfurization absorption tower provided in Example 1 of the present invention when in use; Figure 4 A schematic structural diagram of the sealing cover portion of embodiment 1 of the present invention is provided; Figure 5 A schematic structural diagram of a cover portion according to an embodiment of the present invention is provided from one perspective; Figure 6 A schematic structural diagram of the sealing cover portion from two perspectives is provided for an embodiment of the present invention.
[0018] Icons: 10-tower body, 11-leakage seam, 21-cover body, 22-suction tube, 23-sealing cover, 24-clearance hole, 25-first clamping block, 26-second clamping block, 27-clamping ring, 30-adsorption device, 31-fixing block, 32-connecting rod, 33-connecting belt. DETAILED DESCRIPTION
[0019] Example The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 6 As shown, the online plugging device for the desulfurization absorption tower of this embodiment includes a tower body 10, a leakage seam 11 provided on the outer wall of the tower body 10, a cover body 21 attached to the outer wall of the absorption tower body 10, a liquid suction pipe 22 connected to the cover body 21, a negative pressure machine connected to the liquid suction pipe 22, a sealing cover 23 provided on the outer wall of the tower body 10, a clearance hole 24 provided at the upper end of the sealing cover 23, a pair of adsorption devices 30 respectively provided on both sides of the cover body 21, and a connecting belt 33 for connecting the pair of adsorption devices 30; the upper end of the cover body 21 is an open end, and the cover body 21 is provided directly below the leakage seam 11; the cover body 21 and the leakage seam 11 are both provided in the sealing cover 23, and the liquid suction pipe 22 is provided through the clearance hole 24. Specifically, when in use, the cover body 21 is first attached to the bottom of the leakage seam 11, and at the same time, the pair of adsorption devices 30 are adsorbed on both sides of the cover body 21 by negative pressure (as shown in the attached Figure 1 As shown, a pair of adsorption devices 30 are connected using a connecting belt 33, so that the liquid overflowing from the leakage seam 11 can flow into the cover body 21 and be discharged through the suction pipe 22 and the negative pressure machine to prevent it from flowing to other places on the outer wall of the tower body 10. Then, the outer wall of the tower body 10 where the liquid flows can be cleaned and polished, and then the cover body 21 is temporarily fixed to the outer wall of the tower body 10 using an adhesive. During this process, the connecting belt 33 can be pressed on the outer wall of the cover body 21 to prevent it from falling off, and then the sealing cover 23 is covered on the outer wall of the tower body 10 using an adhesive (as shown in the attached figure). Figure 2 As shown, the cover body 21 is in the sealing cover 23), the pipette 22 is pulled out, and then the sealant is injected into the sealing cover 23 and the cover body 21 through the clearance hole 24 (as shown in the attached Figure 3 As shown), the leakage hole is sealed and the entire sealing cover 23 is filled, so that the adsorption tower can be plugged during operation and long cracks, large leakage holes, large leakages and other leakages can be effectively blocked.
[0020] The lower end of the cover body 21 in this embodiment is a tapered structure with a larger upper portion and a smaller lower portion; the end of the suction pipe 22 away from the negative pressure machine is arranged at the lower end of the inner portion of the cover body 21. Specifically, this can better collect the leaked liquid and discharge it through the suction pipe 22. It should be noted that when injecting sealant into the sealing cover 23, you can take it out without lowering the pipette 22 first. For the case of a large leakage, you can keep the pipette 22 absorbing liquid while injecting sealant between the cover body 21 and the sealing cover 23 through the glue injection tube. The outer wall of the tower body 10 outside the cover body 21 has been fully cleaned and polished, so the sealant can adhere well to the outer wall of the tower body 10, the outer wall of the cover body 21 and the inner wall of the sealing cover 23, so that during the curing process of this part of the sealant, new sealant is slowly injected at the same time, and finally the pipette 22 is pulled out from the cover body 21 and the makeshift hole 24, and then the sealant is injected into the cover body 21 to finally seal the leakage seam 11 and finally block the makeshift hole 24. The sealant can be used directly to seal the makeshift hole 24, or other materials can be used to seal the makeshift hole 24.
[0021] The adsorption device 30 in this embodiment includes a fixed block 31 attached to the outer wall of the tower body 10, a suction cup provided on the side of the fixed block 31 close to the tower body 10, and a connecting rod 32 provided on the side of the fixed block 31 away from the tower body 10; the suction cup is used to be adsorbed on the outer wall of the tower body 10, and the two ends of the connecting belt 33 are respectively connected to a pair of connecting rods 32. The pair of fixed blocks 31 are located at the same height, and the connecting rods 32 are vertically arranged. Specifically, the fixed block 31 can be temporarily fixed to the smooth outer wall of the tower body 10 by the suction cup, and then the pair of connecting rods 32 can be connected using the connecting belt 33, so that the cover body 21 or the sealing cover 23 can be pressed by the connecting belt 33. Before the adhesive is completely cured and takes effect, the cover body 21 or the sealing cover 23 can be prevented from falling off under the action of the connecting belt 33. It should be noted that fixing the sealing cover 23 to the outer wall of the tower body 10 by welding may destroy the strength of the tower body 10 and the coating on the inner wall of the tower body 10. However, if the wall thickness of the tower body 10 is thick enough and there are sufficient cooling measures, welding can also be considered to fix the sealing cover 23 to the tower body 10. However, full welding is not recommended, but appropriate spot welding can be performed at multiple points on the outer wall of the sealing cover 23.
[0022] In this embodiment, the connecting strap 33 is made of an elastic material. Specifically, this eliminates the need to move the fixing block 31. The connecting strap 33 can be removed from the housing 21 and then directly pressed against the sealing cover 23. The elasticity of the connecting strap 33 can be adjusted by tightening or loosening it, thereby adjusting the compression strength of the connecting strap 33 against the housing 21 or sealing cover 23.
[0023] In this embodiment, a pair of U-shaped first clamping blocks 25 are provided on the side of the cover 21 away from the tower body 10. The openings of the first clamping blocks 25 are disposed toward the side away from the tower body 10. The connecting strap 33 is removably secured to the first clamping blocks 25. Specifically, the connecting strap 33 is secured to the grooves of the first clamping blocks 25 to prevent it from slipping off the cover 21.
[0024] In this embodiment, a pair of U-shaped second clamping blocks 26 are provided on the side of the sealing cover 23 away from the tower body 10. The openings of the second clamping blocks 26 are disposed toward the side away from the tower body 10. The connecting strap 33 is removably secured to the second clamping blocks 26. Specifically, the connecting strap 33 is secured to the groove of the second clamping buckle to prevent it from slipping off the sealing cover 23.
[0025] In this embodiment, a retaining ring 27 is fixedly mounted on the inner wall of the housing 21, and the pipette 22 is removably secured within the retaining ring 27. Specifically, the retaining ring 27 effectively and temporarily secures the pipette 22, ensuring that the lower end of the pipette 22 is always located on the inner bottom wall of the housing 21, effectively aspirating liquid from the housing 21. The pipette 22 can also be removed from the retaining ring 27 at a later time.
[0026] Example 2 This embodiment provides a leak plugging method for an online leak plugging device for a desulfurization absorption tower based on Example 1, comprising the following steps: (1) Adsorb a pair of fixing blocks on both sides of the leakage hole on the outer wall of the tower body through suction cups, then stick the cover body just below the leakage hole on the outer wall of the tower body, and clamp the connecting belt on the first clamping block. At this time, the liquid overflowing from the leakage hole enters the cover body, start the negative pressure machine, and suck away the liquid flowing into the cover body through the suction pipe; (2) Clean and polish the outer wall of the tower body outside the cover body, and then apply adhesive to the outer side of the connection between the cover body and the tower body; according to the different materials of the tower body, cover body and sealing cover, the most suitable adhesive can be selected. For example, for carbon steel tower body, stainless steel cover body and sealing cover, the adhesive can be two-component epoxy resin glue (such as E-44 / E-51 type), silicone rubber adhesive (room temperature vulcanization type, RTV), etc.; for stainless steel tower body, stainless steel cover body and sealing cover, the adhesive can be modified acrylic ester structural adhesive (SGA type), etc.; for FRP tower body, FRP cover body and sealing cover, the adhesive can be unsaturated polyester resin glue (UPR), epoxy vinyl ester resin glue (VE glue), etc.; for carbon steel tower body, carbon steel cover body and sealing cover, the adhesive can be phenolic-acetal adhesive (such as JX-10 glue), etc.
[0027] (3) Pass the pipette through the hole in advance, remove the connecting belt from the first block, and then evenly apply adhesive on the side of the sealing cover close to the tower body. Then, fit the sealing cover to the outer wall of the tower body so that the cover body is in the sealing cover, and clamp the connecting belt on the second block; (4) After the adhesive on the sealing cover solidifies, remove the pipette from the cover body and the clearance hole, then inject sealant into the cover body through the clearance hole, and finally use the sealant to block the clearance hole; (5) Remove the connecting belt from the second block, and then remove the pair of adsorption devices from the tower body.
[0028] In this embodiment, the type of sealant in step (4) is silicone rubber.
[0029] In summary, the online leak-plugging device and leak-plugging method for the desulfurization absorption tower of this embodiment, when in use, first stick the cover body under the leakage seam, and at the same time, adsorb a pair of adsorption devices on both sides of the cover body through negative pressure (use a connecting belt to connect a pair of adsorption devices), so that the liquid overflowing from the leakage seam can flow into the cover body, and be discharged through the suction pipe and the negative pressure machine to prevent it from flowing to other places on the outer wall of the tower body. Then, the place where the liquid flows through the outer wall of the tower body can be cleaned and polished, and then the cover body can be temporarily fixed to the outer wall of the tower body with an adhesive. During this process, the connecting belt can be pressed on the outer wall of the cover to prevent it from falling off, and then the sealing cover is covered on the outer wall of the tower body with an adhesive (the cover body is in the sealing cover), the suction pipe is pulled out, and then sealant is injected into the sealing cover and the cover body through the clearance hole to seal the leakage hole and fill the entire sealing cover. In this way, the adsorption tower can be plugged during its operation and long cracks, large leakage holes, large leakages and other leakages can be effectively sealed.
[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. An online leak plugging device for a desulfurization absorption tower, comprising a tower body (10), a leaking seam (11) provided on the outer wall of the tower body (10), characterized in that: The invention comprises a cover body (21) attached to the outer wall of an absorption tower body (10), a liquid suction pipe (22) connected to the cover body (21), a negative pressure machine connected to the liquid suction pipe (22), a sealing cover (23) covered on the outer wall of the tower body (10), a clearance hole (24) opened at the upper end of the sealing cover (23), a pair of adsorption devices (30) respectively arranged on both sides of the cover body (21), and a connecting belt (33) for connecting the pair of adsorption devices (30); The upper end of the cover body (21) is an open end, and the cover body (21) is arranged directly below the leakage seam (11); the cover body (21) and the leakage seam (11) are both arranged in the sealing cover (23), and the liquid suction tube (22) is arranged through the clearance hole (24).
2. The online leak plugging device for a desulfurization absorption tower according to claim 1, characterized in that: The lower end of the cover body (21) is a conical structure with a larger upper portion and a smaller lower portion; the end of the liquid suction tube (22) away from the negative pressure machine is arranged at the lower end inside the cover body (21).
3. The online leak plugging device for a desulfurization absorption tower according to claim 1, characterized in that: The adsorption device (30) comprises a fixed block (31) attached to the outer wall of the tower body (10), a suction cup provided on a side of the fixed block (31) close to the tower body (10), and a connecting rod (32) provided on a side of the fixed block (31) away from the tower body (10); The suction cup is used to be adsorbed on the outer wall of the tower body (10), and both ends of the connecting belt (33) are respectively connected to a pair of connecting rods (32).
4. The online leak plugging device for a desulfurization absorption tower according to claim 3, characterized in that: The pair of fixing blocks (31) are located at the same height, and the connecting rod (32) is vertically arranged.
5. The online leak plugging device for a desulfurization absorption tower according to claim 3, characterized in that: The connecting belt (33) is made of elastic material.
6. The online leak plugging device for a desulfurization absorption tower according to claim 5, characterized in that: A pair of U-shaped first clamping blocks (25) are provided on a side of the cover body (21) away from the tower body (10), and the opening side of the first clamping blocks (25) is arranged toward the side away from the tower body (10); the connecting belt (33) is detachably clamped in the first clamping blocks (25).
7. The online leak plugging device for a desulfurization absorption tower according to claim 6, characterized in that: A pair of U-shaped second clamping blocks (26) are provided on a side of the sealing cover (23) away from the tower body (10), and the opening side of the second clamping blocks (26) is arranged toward the side away from the tower body (10); and the connecting belt (33) is detachably clamped in the second clamping blocks (26).
8. The online leak plugging device for a desulfurization absorption tower according to claim 1, characterized in that: A clamping ring (27) is fixedly provided on the inner wall of the cover body (21), and the liquid pipette (22) is detachably clamped in the clamping ring (27).
9. A method for plugging leaks in an online plugging device for a desulfurization absorption tower according to claim 7, characterized in that: The steps are as follows: (1) Adsorb a pair of fixing blocks on both sides of the leakage hole on the outer wall of the tower body through suction cups, then stick the cover body just below the leakage hole on the outer wall of the tower body, and clamp the connecting belt on the first clamping block. At this time, the liquid overflowing from the leakage hole enters the cover body, start the negative pressure machine, and suck away the liquid flowing into the cover body through the suction pipe; (2) Clean and polish the outer wall of the tower body outside the cover, and then apply adhesive to the outer side of the connection between the cover and the tower body; (3) Pass the pipette through the hole in advance, remove the connecting belt from the first block, and then evenly apply adhesive on the side of the sealing cover close to the tower body. Then, fit the sealing cover to the outer wall of the tower body so that the cover body is in the sealing cover, and clamp the connecting belt on the second block; (4) After the adhesive on the sealing cover solidifies, remove the pipette from the cover body and the clearance hole, then inject sealant into the cover body through the clearance hole, and finally use the sealant to block the clearance hole; (5) Remove the connecting belt from the second block, and then remove the pair of adsorption devices from the tower body.
10. The online leak plugging method for a desulfurization absorption tower according to claim 9, characterized in that: The type of sealant in step (4) is silicone rubber.