Exhaust pipe device of condensed water precision treatment high-speed mixed bed invalid resin regeneration equipment
By using a single-wire tube and backflushing assembly in the exhaust pipe device, the problem of resin loss was solved, achieving effective resin retention and stable system operation, while reducing maintenance difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGTIAN IRON & STEEL GRP (NANTONG) CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-12
AI Technical Summary
The exhaust pipe device of the existing high-speed mixed bed resin regeneration equipment for condensate polishing is poorly designed, which makes the resin easy to be lost during the regeneration process, resulting in economic losses and affecting the water treatment capacity.
The system employs a straight-line wire-wound tube and a backwashing assembly. The design ensures that the gap width is smaller than the diameter of the resin particles. Combined with the backwashing assembly, the straight-line wire-wound tube traps the resin, and the backwashing cleans the blockage, ensuring that the resin does not leak.
It effectively prevents resin leakage, reduces economic losses, maintains stable system operation, lowers maintenance costs, extends equipment life, and simplifies installation and maintenance processes.
Smart Images
Figure CN224221370U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of regeneration equipment technology, and in particular to an exhaust pipe device for a high-speed mixed bed regeneration equipment for condensate polishing of failed resin. Background Technology
[0002] In the field of thermal power generation, condensate polishing systems play a crucial role in ensuring the safe and economical operation of thermal equipment. High-speed mixed-bed condensate polishing systems, as one of the core components, effectively remove cations and anions from condensate using a mixture of cation and anion resins, ensuring that the condensate quality meets the operational requirements of high-parameter thermal power generating units. However, as the high-speed mixed-bed operates, the resin gradually becomes ineffective, requiring regeneration to restore its ion exchange capacity. The resin regeneration process involves multiple steps, including the injection of regenerant, resin separation, and regeneration. The exhaust pipe device, as a vital component of the regeneration system, is directly related to the smooth progress of the entire regeneration process and the stable operation of the polishing system.
[0003] In existing technologies, the exhaust pipe device of the high-speed mixed bed resin regeneration equipment for condensate polishing has obvious design flaws. Due to unreasonable design of the exhaust pipe or the inlet end of the regeneration system equipment, resin loss is very likely to occur during the regeneration process. When the resin is discharged from the exhaust pipe with the regeneration waste liquid, it not only causes economic loss of this important consumable material and increases the operating costs of power generation companies, but also reduces the amount of resin in the high-speed mixed bed, affecting its removal effect on ions in condensate, thereby damaging the water treatment capacity of the entire polishing system and threatening the safe and stable operation of thermal equipment. Therefore, it needs to be improved. Utility Model Content
[0004] To address the issue of resin loss during the exhaust process, this application provides an exhaust pipe device for a high-speed mixed-bed resin regeneration equipment for condensate polishing.
[0005] The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing provided in this application adopts the following technical solution:
[0006] An exhaust pipe device for a high-speed mixed-bed regeneration equipment for condensate polishing includes an exhaust pipe body. The exhaust pipe body has a single-wire winding tube at its first end, the inner diameter of which is the same as the inner diameter of the exhaust pipe body. One end of the single-wire winding tube is connected to the interior of the exhaust pipe body, and the other end is fitted with a closed circular plug. The single-wire winding tube has several slits extending along its axial direction, the width of which ranges from 0.3mm to 0.35mm. The exhaust pipe body is equipped with a backwashing component to prevent clogging of the slits.
[0007] Due to unreasonable design of the exhaust pipe or inlet end of the regeneration system equipment, resin loss is very likely to occur during the regeneration process. When the resin is discharged from the exhaust pipe with the regeneration waste liquid, it will not only cause economic loss of this important consumable material, but also solve the problem. By adopting the above technical solution, including the exhaust pipe body, the exhaust pipe body is connected to a straight wire-wound tube, and the straight wire-wound tube body is provided with several slits along the axial direction. The width of the slits ranges from 0.3mm to 0.35mm, and the backwashing component is installed on the exhaust pipe body.
[0008] During the regeneration of failed resin in the high-speed mixed bed condensate polishing process, some resin flows towards the exhaust pipe body. The waste liquid first enters the straight wire-wound tube connected to the inside of the exhaust pipe body. Because the straight wire-wound tube has several slits with a width ranging from 0.3mm to 0.35mm, the width of which is carefully designed to be smaller than the diameter of the resin particles, air can pass through the slits smoothly when flowing through the straight wire-wound tube, while the resin particles are trapped outside the straight wire-wound tube and cannot be discharged from the slits, effectively avoiding resin loss. At the same time, as the exhaust process continues, a certain amount of resin trapped in the straight wire-wound tube may gradually block the slits on the straight wire-wound tube. At this time, the backwashing component reverses the flow of clean flushing medium (such as water or gas) into the exhaust pipe body. Under the action of the flushing medium, the resin particles trapped in the slits of the straight wire-wound tube are flushed out, ensuring that the exhaust pipe body can work continuously and stably.
[0009] By incorporating a single-line wire-wound tube and backwashing components, resin can be effectively intercepted, directly blocking resin discharged from the exhaust pipe with the airflow or water flow. This prevents resin leakage, avoids resin loss, and ensures normal resin usage to maintain stable system operation. Compared to large-scale modifications to the entire regeneration system or replacement of expensive equipment components, adding a single-line wire-wound tube is cost-effective and cost-efficient. Installation is convenient, typically requiring no major modifications to the existing system; it can be installed directly at an appropriate location on the exhaust pipe. The construction is simple, quick, and does not interfere with normal system operation for extended periods. Maintenance is convenient; if blockages occur during operation, inspection, cleaning, or replacement is easy, and regular maintenance ensures its good condition and stable system operation. The effect is direct and noticeable; resin leakage is directly and significantly reduced after installation, facilitating timely resolution of production problems and reducing subsequent treatment costs and environmental impact caused by resin leakage.
[0010] Optionally, the cross-section of the straight wire-wound tube is a regular polygonal structure, and the sieve tube gaps of the straight wire-wound tube are arranged at intervals.
[0011] By adopting the above technical solution, the cross-section of the straight wire-wound tube is a regular polygonal structure, and the screen tube gaps of the straight wire-wound tube are arranged at intervals. Through the setting of the cross-section and gaps of the straight wire-wound tube, the regular polygonal cross-section structure gives the straight wire-wound tube good mechanical properties and stability, so that it can maintain structural integrity in different application scenarios. The spaced screen tube gaps can effectively filter impurities, achieve precise screening, and ensure smooth media flow.
[0012] Optionally, the length of the straight wire-wound tube is 15cm-20cm, and the material of the straight wire-wound tube is 316 stainless steel, which is resistant to acid and alkali corrosion.
[0013] By adopting the above technical solution, the length of the straight wire-wound tube is 15cm-20cm, and the material is 316 stainless steel, which is resistant to acid and alkali corrosion. The size and material of the straight wire-wound tube, and the 15cm-20cm length design, can flexibly adapt to installation requirements in limited spaces, while ensuring that it has a sufficient effective range for filtration or flow guidance. The excellent acid and alkali corrosion resistance of 316 stainless steel allows the straight wire-wound tube to maintain structural stability and long-lasting performance when facing complex and corrosive working environments, which greatly extends its service life, reduces the frequency of replacement due to corrosion, and lowers the cost of use.
[0014] Optionally, the single-wire tube, the exhaust pipe body, and the closed circular plug are each provided with flanges for installation.
[0015] By adopting the above technical solution, the straight wire-wound tube is connected to the exhaust pipe body and the closed circular plug respectively through flanges. Through the setting of flanges, the flange connection method has high strength and stability, which can effectively ensure that the straight wire-wound tube is firmly connected to the exhaust pipe body and the closed circular plug, and is not easy to loosen or fall off during equipment operation, thus ensuring the sealing and safety of the entire system.
[0016] Optionally, the backwash assembly includes a flushing pipe, a flushing valve, and a flushing pump. One end of the flushing pipe is connected to the exhaust pipe body, and the other end of the flushing pipe is connected to the flushing pump. The flushing valve is arranged on the flushing pipe.
[0017] By adopting the above technical solution, the backwashing assembly includes a flushing pipe, a flushing valve, and a flushing pump. When a certain amount of resin gradually blocks the gaps in the straight-wire tube, the flushing valve is opened to ensure the flushing pipe is unobstructed, creating a channel for the flow of flushing fluid. The flushing pump is then turned on, drawing flushing fluid from the storage or supply device. After the flushing fluid enters the exhaust pipe body through the flushing pipe, it flows in the opposite direction to the normal exhaust direction, thus dispersing and peeling away the resin particles blocking the gaps in the straight-wire tube. The backwashing assembly not only enables timely and efficient cleaning when blockage occurs, ensuring the normal filtration and exhaust functions of the straight-wire tube and maintaining the stable operation of the entire system, but also simplifies operation. The backwashing process can be completed by controlling the flushing valve and the flushing pump, greatly reducing maintenance difficulty and cost, and extending the service life of the equipment.
[0018] Optionally, the inner diameter of the flushing pipe is the same as the inner diameter of the exhaust pipe body.
[0019] By adopting the above technical solution, the inner diameter of the flushing pipe is consistent with the inner diameter of the exhaust pipe body. By setting the size of the flushing pipe, the flow state can be smoothly transitioned, avoiding problems such as turbulence and pressure fluctuations caused by sudden changes in inner diameter. This ensures that the flushing fluid can impact the wire-wound tube with a stable and uniform flow rate and pressure, greatly improving the backwashing effect.
[0020] Optionally, the exhaust pipe body is provided with an exhaust valve for controlling the direction of the flushing water flow.
[0021] By adopting the above technical solution, the exhaust valve is installed on the exhaust pipe body; the exhaust valve can flexibly control the direction of the flushing water flow, ensuring that the flushing liquid accurately impacts the wire-wound tube along the preset path, effectively removing the blocked resin particles, and greatly improving the backwashing efficiency and effect.
[0022] Optionally, the gap width of the single-wire winding tube is smaller than the minimum effective particle size of the mixed bed resin, wherein the effective particle size of the strong acid cation resin is 0.65mm-0.90mm, the effective particle size of the macroporous strong base anion resin is 0.50mm-0.70mm, and the effective particle size of the gel anion resin is 0.45mm-0.65mm.
[0023] By adopting the above technical solution, the gap width of the straight wire tube is smaller than the minimum effective particle size of the mixed bed special resin. By setting the gap width, the resin particles in the mixed bed can be effectively intercepted, preventing the resin from leaking into the exhaust pipe during operation, ensuring that the amount of resin in the mixed bed remains stable, and thus maintaining the high efficiency of the condensate polishing system in treating water quality.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. By using a single-line wire-wound tube and backwashing components, resin can be effectively intercepted, directly retaining the resin discharged from the exhaust pipe with the airflow or water flow, preventing resin leakage, avoiding resin loss, and ensuring normal resin usage to maintain stable system operation. Compared to large-scale modification of the entire regeneration system or replacement of expensive equipment components, adding a single-line wire-wound tube is lower in cost and more cost-effective. Installation is convenient, usually requiring no major modifications to the original system; it can be directly installed at an appropriate location on the exhaust pipe, with low construction difficulty, simple process, and short time consumption, and will not interfere with the normal operation of the system for a long time. Maintenance is convenient; if blockages or other problems occur during operation, inspection, cleaning, or replacement is easy, and regular maintenance can ensure its good condition and guarantee stable system operation. The effect is intuitive; after installation, the resin leakage phenomenon is directly and significantly improved, which is conducive to timely resolution of production problems and reduces the subsequent treatment costs and environmental impact caused by resin leakage.
[0026] 2. By setting the size and material of the single-wire tube, and designing a length of 15cm-20cm, it can flexibly adapt to installation needs in limited spaces, while ensuring that it has a sufficient effective range for filtration or flow guidance; and the 316 stainless steel material, with its excellent resistance to acid and alkali corrosion, allows the single-wire tube to maintain structural stability and long-lasting performance when facing complex and corrosive working environments, greatly extending its service life, reducing the frequency of replacement due to corrosion, and lowering the cost of use;
[0027] 3. The backwashing component not only enables timely and efficient cleaning when blockages occur, ensuring the normal filtration and venting functions of the wire-wound tube and maintaining the stable operation of the entire system, but also simplifies operation. The backwashing process can be completed by controlling the flushing valve and flushing pump, greatly reducing maintenance difficulty and cost and extending the service life of the equipment. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the exhaust pipe device of a high-speed mixed bed failed resin regeneration equipment for condensate polishing in an embodiment of this application.
[0029] Figure 2 This is a schematic diagram illustrating the structure of a straight wire-wound tube in the embodiments of this application.
[0030] Explanation of reference numerals in the attached drawings: 1. Main body of exhaust pipe; 2. Straight wire-wound tube; 3. Closed circular plug; 4. Gap; 5. Backflushing assembly; 51. Flushing pipe; 52. Flushing valve; 53. Flushing pump; 6. Exhaust valve. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0032] This application discloses an exhaust pipe device for a high-speed mixed-bed failed resin regeneration equipment for condensate polishing. (Refer to...) Figure 1 and Figure 2 The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing includes an exhaust pipe body 1. A straight wire-wound tube 2 is installed at the first end of the exhaust pipe body 1. In this embodiment, the inner diameter of the straight wire-wound tube 2 is the same as the inner diameter of the exhaust pipe body 1. Preferably, the exhaust pipe body 1 and the straight wire-wound tube 2 are of model and specification DN40. One end of the straight wire-wound tube 2 is connected to the inside of the exhaust pipe body 1, and the other end of the straight wire-wound tube 2 is provided with a closed circular plug 3.
[0033] Reference Figure 1 The straight wire-wound tube 2, the exhaust pipe body 1, and the closed circular plug 3 are each equipped with flanges. The flange connection method has high strength and stability, which can effectively ensure that the straight wire-wound tube 2, the exhaust pipe body 1, and the closed circular plug 3 are firmly connected and are not easy to loosen or fall off during equipment operation, thus ensuring the sealing and safety of the entire system.
[0034] Reference Figure 1 and Figure 2 The slit tube 2 has several slits 4 extending through it along its axial direction. The slits 4 of the slit tube 2 are arranged at intervals. At the same time, the width of the slits 4 of the slit tube 2 is smaller than the minimum effective particle size of the mixed bed resin. The effective particle size of the strong acid cation resin is 0.65mm-0.90mm, the effective particle size of the macroporous strong base anion resin is 0.50mm-0.70mm, and the effective particle size of the gel anion resin is 0.45mm-0.65mm. The width of the slits 4 ranges from 0.3mm to 0.35mm, and the preferred width of the slits 4 is 0.35mm.
[0035] Reference Figure 1 The length of the straight wire-wound tube 2 is 15cm-20cm, and the material of the straight wire-wound tube 2 is 316 stainless steel, which is resistant to acid and alkali corrosion. The 15cm-20cm length design can flexibly adapt to the installation requirements in limited space, while ensuring that it has a sufficient effective range for filtration or flow guidance. The excellent acid and alkali corrosion resistance of the 316 stainless steel material allows the straight wire-wound tube 2 to maintain structural stability and long-lasting performance when facing complex and corrosive working environments, which greatly extends its service life, reduces the frequency of replacement due to corrosion, and lowers the cost of use.
[0036] Reference Figure 1A backwashing assembly 5 is installed on the exhaust pipe body 1. In this embodiment, the backwashing assembly 5 is used to prevent resin particles from clogging the gap 4. When the three towers (separation tower, positive tower, and negative tower) are filled with water, if the gap 4 of the wire-wound tube 2 is blocked, the exhaust of the exhaust pipe body 1 will be obstructed, and the tower pressure will rise. It can be determined from the pressure gauge value that the wire-wound tube 2 needs to be flushed. The backwashing assembly 5 includes a flushing pipe 51, a flushing valve 52, and a flushing pump 53. The inner diameter of the flushing pipe 51 is the same as the inner diameter of the exhaust pipe body 1. It is preferred to use a model with a specification of DN40, which can make the flow state transition smoothly and avoid problems such as turbulence and pressure fluctuation caused by sudden changes in inner diameter. It ensures that the flushing liquid can impact the wire-wound tube 2 with a stable and uniform flow rate and pressure, which greatly improves the backwashing effect.
[0037] Reference Figure 1 One end of the flushing pipe 51 is connected to the exhaust pipe body 1. In this embodiment, the upper end of the exhaust pipe body 1 is connected to the flushing pipe 51 through a reducing tee. The connection is achieved by welding through a DN40 tee. The other end of the flushing pipe 51 is connected to the flushing pump 53. In this embodiment, the flushing pump 53 can be an essential device for the regeneration system, and there is no need to add it separately, which greatly saves costs.
[0038] Reference Figure 1 Meanwhile, the flushing valve 52 is arranged on the flushing pipe 51. By adjusting the opening of the flushing valve 52, the flushing water pressure is used to flush away the broken resin particles that are blocked in the gap 4 of the "one-line winding wire" 2, thus solving the problem of poor exhaust pressure caused by the blockage of broken resin in the gap 4 of the exhaust pipe.
[0039] Reference Figure 1 An exhaust valve 6 is installed on the exhaust pipe body 1. In this embodiment, the exhaust valve 6 needs to be closed when backwashing is performed. This allows for flexible control of the flushing water flow direction, ensuring that the flushing liquid accurately impacts the wire-wound tube 2 along a preset path, effectively removing the blocked resin particles and greatly improving the backwashing efficiency and effect.
[0040] The implementation principle of the exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing in this application embodiment is as follows: During the regeneration process of failed resin in the high-speed mixed bed condensate polishing equipment, some resin flows towards the exhaust pipe body 1. The waste liquid first enters the straight wire-wound tube 2, which is connected to the interior of the exhaust pipe body 1. Because the straight wire-wound tube 2 has several gaps 4 with a width ranging from 0.3mm to 0.35mm, the width of which is carefully designed to be smaller than the diameter of the resin particles, allowing air to flow smoothly through the straight wire-wound tube 2. The resin particles are discharged through the gap 4, while the resin particles are trapped outside the straight wire tube 2 and cannot be discharged through the gap 4, which effectively avoids resin loss. At the same time, as the exhaust process continues, a certain amount of resin trapped in the straight wire tube 2 may gradually block the gap 4 on the straight wire tube 2. At this time, the backwashing component 5 reverses the flow of clean flushing medium (such as water or gas) into the exhaust pipe body 1. Under the action of the flushing medium, the resin particles trapped in the gap 4 of the straight wire tube 2 are flushed out, ensuring that the exhaust pipe body 1 can work continuously and stably.
[0041] By using the straight-line wire-wound tube 2 and the backwashing component 5, resin can be effectively intercepted. Resin discharged from the exhaust pipe with the airflow or water flow is directly trapped, preventing resin leakage and loss, ensuring normal resin usage to maintain stable system operation. Compared to large-scale modifications to the entire regeneration system or replacement of expensive equipment components, adding the straight-line wire-wound tube 2 is cost-effective and cost-efficient. Installation is convenient; usually, no major modifications to the existing system are required. It can be directly installed at an appropriate location on the exhaust pipe, with low construction difficulty, a simple process, and short time consumption, without prolonged interference with normal system operation. Maintenance is convenient; if blockages or other problems occur during operation, inspection, cleaning, or replacement is easy. Regular maintenance ensures its good condition and guarantees stable system operation. The effect is obvious; resin leakage is directly and significantly improved after installation, facilitating timely resolution of production problems and reducing subsequent treatment costs and environmental impact caused by resin leakage.
[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An exhaust pipe device for a high-speed mixed-bed regeneration equipment for condensate polishing, comprising an exhaust pipe body, characterized in that: The exhaust pipe body has a straight wire tube at its head end, the inner diameter of which is the same as the inner diameter of the exhaust pipe body. One end of the straight wire tube is connected to the interior of the exhaust pipe body, and the other end of the straight wire tube is provided with a closed circular plug. The straight wire tube has several slits extending through it along the axial direction, and the width of the slits ranges from 0.3mm to 0.35mm. The exhaust pipe body is provided with a backwashing component to prevent clogging of the slits.
2. The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing according to claim 1, characterized in that: The cross-section of the straight wire-wound tube is a regular polygonal structure, and the sieve tube gaps of the straight wire-wound tube are arranged at intervals.
3. The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing according to claim 2, characterized in that: The length of the straight wire-wound tube is 15cm-20cm, and the material of the straight wire-wound tube is 316 stainless steel, which is resistant to acid and alkali corrosion.
4. The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing according to claim 1, characterized in that: The single-wire winding tube, the exhaust pipe body, and the closed circular plug are each equipped with flanges for installation.
5. The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing according to claim 1, characterized in that: The backwash assembly includes a flushing pipe, a flushing valve, and a flushing pump. One end of the flushing pipe is connected to the exhaust pipe body, and the other end of the flushing pipe is connected to the flushing pump. The flushing valve is arranged on the flushing pipe.
6. The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing according to claim 5, characterized in that: The inner diameter of the flushing pipe is the same as the inner diameter of the exhaust pipe body.
7. The exhaust pipe device for a high-speed mixed-bed regeneration equipment for condensate polishing according to claim 5, characterized in that: The exhaust pipe body is equipped with an exhaust valve for controlling the direction of the flushing water flow.
8. The exhaust pipe device of the high-speed mixed bed failed resin regeneration equipment for condensate polishing according to claim 1, characterized in that: The gap width of the one-line winding tube is smaller than the minimum effective particle size of the mixed bed special resin, wherein the effective particle size of the strong acid cation resin is 0.65mm-0.90mm, the effective particle size of the macroporous strong base anion resin is 0.50mm-0.70mm, and the effective particle size of the gel anion resin is 0.45mm-0.65mm.