Mixed bed ion exchanger
By introducing a feed assembly, a cleaning assembly, and a level control system into the mixed-bed ion exchanger, the problems of resin exchange capacity reduction and scaling were solved, achieving efficient resin regeneration and stable equipment operation, thereby improving ion exchange efficiency and equipment lifespan.
Patent Information
- Application Number
- CN202423238201.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing mixed-bed ion exchangers require frequent resin replacements when the resin exchange capacity decreases, and resin scaling can cause equipment wear and damage, affecting equipment operation.
A mixed-bed ion exchanger was designed, comprising a feeding assembly, a cleaning assembly, a central discharge assembly, a support assembly, and a level and pressure transmitter. By spraying the cleaning fluid and adjusting the liquid level, the resin is regenerated and impurities are removed, avoiding localized liquid accumulation and ensuring continuous operation of the equipment.
It achieves efficient resin regeneration and impurity removal, reduces resin replacement frequency, improves ion exchange efficiency, reduces equipment wear risk, and ensures stable equipment operation.
Smart Images
Figure CN223615917U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ion exchange separation technology, specifically relating to a mixed-bed ion exchanger. Background Technology
[0002] A mixed-bed ion exchanger is an ion exchange device filled with ion exchange resin. The exchangeable ions on the resin can undergo ion exchange reactions with ions in the feed solution, thereby removing various ions from the feed solution. Mixed-bed ion exchangers are simple to operate, require little space, and can operate stably without frequent downtime for maintenance or component replacement. However, as the ion exchange process continues, the resin's exchange capacity gradually decreases. When the resin's exchange capacity drops to a certain level, resin regeneration is necessary.
[0003] The resin regeneration process in mixed-bed ion exchangers is relatively complex, requiring resin replacement to ensure treatment quality. Simultaneously, under certain conditions, the ions adsorbed by the resin can form scale, which is carried into the equipment's piping system by the water flow, affecting normal operation and potentially causing equipment damage. Utility Model Content
[0004] The purpose of this invention is to provide a mixed-bed ion exchanger that can regenerate the resin when its exchange capacity decreases, eliminating the need for frequent resin replacements and thus enabling continuous operation of the equipment. This improves the ion exchange efficiency of the mixed-bed ion exchanger while reducing wear and damage caused by resin scaling.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] The mixed-bed ion exchanger includes a shell, inside which a resin layer is disposed. A feed assembly is disposed inside the shell and located above the resin layer. Above the feed assembly is a cleaning assembly, which includes a cleaning pipe. One end of the cleaning pipe is connected to a cleaning liquid inlet, and the other end is connected to a branch pipe. Three branch pipes are arranged around the branch pipe. A cleaning ball is disposed at the end of each branch pipe furthest from the branch pipe. A middle drain assembly is disposed below the feed assembly and located inside the resin layer. A support assembly is disposed below the middle drain assembly and located at the bottom of the resin layer. A lower drain port is disposed at the bottom of the shell, and a level and pressure transmitter is disposed on one side of the shell.
[0007] in:
[0008] The feeding assembly includes an inner support, which is fixedly installed on the inner wall of the housing. Three sets of feeding pipes are fixedly installed on the inner support. One end of the feeding pipe passes through the housing and is connected to the feeding port, while the other end of the feeding pipe is fixedly installed on the inner wall of the housing.
[0009] The three sets of feed pipes are arranged in parallel to each other, and each set of feed pipes is equipped with several sets of double-headed water caps.
[0010] The aforementioned middle drain assembly includes an inner support second, which is fixedly installed on the inner wall of the housing. Three sets of middle drain pipes are fixedly installed on the inner support second. One end of the middle drain pipe passes through the housing and is connected to a middle drain port, while the other end of the middle drain pipe is fixedly installed on the inner wall of the housing.
[0011] The three sets of middle drain pipes are arranged in parallel to each other, and several sets of double-headed water caps are installed on the middle drain pipes.
[0012] The support assembly includes a perforated plate, which is generally arranged in a disc shape, and several sets of single-headed water caps are provided on the top of the perforated plate.
[0013] The bottom of the perforated plate is fitted with reinforcing ribs, which are fixedly mounted on the inner wall of the housing.
[0014] The height of the liquid level pressure transmitter is lower than the height of the feeding assembly, and the height of the liquid level pressure transmitter is higher than the height of the top surface of the resin layer. The liquid level pressure transmitter includes a high liquid level pressure transmitter, and a low liquid level pressure transmitter is provided below the high liquid level pressure transmitter.
[0015] The distance between the top surface of the resin layer and the low liquid level pressure transmitter is 10cm, and the resin layer is a cation-anion mixed exchange resin.
[0016] The top of the housing is provided with an upper outlet and an exhaust outlet, the side of the housing away from the feed inlet is provided with a resin inlet and a resin discharge outlet, and the bottom of the housing is surrounded by four support legs.
[0017] The beneficial effects of this utility model are as follows:
[0018] The cleaning solution enters the cleaning pipe through the cleaning solution inlet, is distributed through the diversion pipe and branch pipes, and then sprayed by the cleaning balls. This allows the cleaning solution to act on the area to be cleaned at a certain pressure and flow rate, effectively removing impurities adhering to the resin layer and inside the shell. During ion exchange and resin regeneration, the central discharge assembly ensures that waste liquid can be discharged from the middle of the resin layer in a timely manner, preventing localized liquid accumulation from affecting the efficiency of ion exchange and resin regeneration. The lower discharge port is located at the bottom of the shell. During ion exchange, the purified raw material liquid is discharged through the lower discharge port. During regeneration, it can connect to the regeneration liquid inlet pipe to ensure the smooth progress of the regeneration process. The level and pressure transmitter can adjust the feed flow rate in real time, keeping the liquid inside the shell within a reasonable range and improving the overall operating efficiency of the equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a cross-sectional schematic diagram of the feeding assembly and the housing in this utility model;
[0021] Figure 3 This is a cross-sectional schematic diagram of the middle row assembly and the housing in this utility model;
[0022] Figure 4 This is a cross-sectional schematic diagram of the cleaning component, housing, and cleaning fluid inlet in this utility model;
[0023] Figure 5 This is a cross-sectional schematic diagram of the support leg and the shell in this utility model;
[0024] In the picture:
[0025] 1. Housing; 2. Resin layer; 3. Cleaning assembly; 301. Cleaning pipe; 302. Diverter pipe; 303. Diverter branch pipe; 304. Cleaning ball; 4. Cleaning fluid inlet; 5. Feeding assembly; 501. Inner support one; 502. Feeding pipe; 503. Feed inlet; 504. Double-headed water cap one; 6. Middle drain assembly; 601. Inner support two; 602. Middle drain pipe; 603. Middle drain port; 604. Double-headed water cap two; 7. Support assembly; 701. Orifice plate; 702. Single-headed water cap; 703. Reinforcing rib; 8. Upper drain port; 9. Exhaust port; 10. Lower drain port; 11. Resin inlet; 12. Resin outlet; 13. Support leg; 14. Liquid level and pressure transmitter; 1401. High liquid level and pressure transmitter; 1402. Low liquid level and pressure transmitter. Detailed Implementation
[0026] The present invention will now be described and explained in detail with reference to the accompanying drawings.
[0027] Example 1
[0028] like Figure 1-5 As shown, the mixed-bed ion exchanger includes a housing 1, a resin layer 2 inside the housing 1, a feed assembly 5 inside the housing 1, the feed assembly 5 being located above the resin layer 2, a cleaning assembly 3 above the feed assembly 5, the cleaning assembly 3 including a cleaning pipe 301, one end of the cleaning pipe 301 being connected to a cleaning liquid inlet 4, the other end of the cleaning pipe 301 being connected to a diversion pipe 302, three diversion branches 303 being arranged around the diversion pipe 302, a cleaning ball 304 being arranged at the end of the diversion branch 303 away from the diversion pipe 302, a middle drain assembly 6 being arranged below the feed assembly 5, the middle drain assembly 6 being located inside the resin layer 2, a support assembly 7 being arranged below the middle drain assembly 6, the support assembly 7 being located at the bottom of the resin layer 2, a lower drain port 10 being arranged at the bottom of the housing 1, and a liquid level and pressure transmitter 14 being arranged on one side of the housing 1.
[0029] The cleaning fluid enters the cleaning pipe 301 through the cleaning fluid inlet 4, is distributed through the diversion pipe 302 and the diversion branch pipe 303, and is then sprayed by the cleaning ball 304. This allows the cleaning fluid to act on the area to be cleaned at a certain pressure and flow rate, effectively removing impurities attached to the resin layer 2 and the inside of the shell 1. During ion exchange and resin regeneration, the middle discharge assembly 6 ensures that waste liquid can be discharged from the middle of the resin layer 2 in a timely manner, avoiding local liquid accumulation that could affect the efficiency of ion exchange and resin regeneration. The lower discharge port 10 is located at the bottom of the shell 1. The purified raw material liquid is discharged through the lower discharge port 10 during ion exchange, and during regeneration, it can be connected to the regeneration liquid inlet pipe to ensure the smooth progress of the regeneration process. The liquid level and pressure transmitter 14 can adjust the feed flow rate in real time, keeping the liquid in the shell 1 within a reasonable range and improving the overall operating efficiency of the equipment.
[0030] The feeding assembly 5 includes an inner support 501, which is fixedly installed on the inner wall of the housing 1. Three sets of feeding pipes 502 are fixedly installed on the inner support 501. One end of the feeding pipe 502 passes through the housing 1 and is connected to the feeding port 503. The other end of the feeding pipe 502 is fixedly installed on the inner wall of the housing 1.
[0031] The three sets of feed pipes 502 are arranged in parallel to each other, and each set of feed pipes 502 is equipped with several sets of double-headed water caps 504.
[0032] The inner support 501 serves to support and fix the feed pipe 502, ensuring the stability of the feed pipe 502 during operation; the three sets of feed pipes 502 increase the uniformity and dispersion of the raw material liquid entering the resin layer 2, allowing the raw material liquid to contact the resin layer 2 more fully; the double-headed water cap 504 allows the raw material liquid to enter the resin layer 2 in smaller droplets, improving the efficiency of ion exchange.
[0033] The middle drain assembly 6 includes an inner support 601, which is fixedly installed on the inner wall of the housing 1. Three sets of middle drain pipes 602 are fixedly installed on the inner support 601. One end of the middle drain pipe 602 passes through the housing 1 and is connected to a middle drain port 603. The other end of the middle drain pipe 602 is fixedly installed on the inner wall of the housing 1.
[0034] The three sets of middle drain pipes 602 are arranged in parallel to each other, and several sets of double-headed water caps 604 are installed on the middle drain pipes 602.
[0035] The inner support 601 serves to support and fix the intermediate drain pipe 602, ensuring the stability of the intermediate drain pipe 602 during operation; the three sets of intermediate drain pipes 602 can effectively collect and discharge the waste liquid generated during ion exchange and regeneration, preventing the waste liquid from accumulating in the resin layer 2; the double-headed water cap 604 can maintain the stability of liquid flow in the resin layer 2, thereby improving the efficiency of ion exchange and regeneration.
[0036] The support component 7 includes a perforated plate 701, which is generally arranged in a disc shape, and several sets of single-head water caps 702 are provided on the top of the perforated plate 701.
[0037] The bottom of the perforated plate 701 is provided with a reinforcing rib 703, which is fixedly installed on the inner wall of the housing 1.
[0038] The support component 7 serves to support the resin layer 2. Several sets of single-headed water caps 702 on the orifice plate 701 can make the liquid evenly distributed at the bottom of the resin layer 2, ensuring smooth flow of liquid during ion exchange and regeneration.
[0039] The height of the level and pressure transmitter 14 is lower than the height of the feed assembly 5, and the height of the level and pressure transmitter 14 is higher than the top surface of the resin layer 2. The level and pressure transmitter 14 includes a high level pressure transmitter 1401, and a low level pressure transmitter 1402 is disposed below the high level pressure transmitter 1401. The high level pressure transmitter 1401 and the low level pressure transmitter 1402 work together to adjust the liquid level in the housing 1 in real time. Both the high level pressure transmitter 1401 and the low level pressure transmitter 1402 are flange-type pressure transmitters.
[0040] The distance between the top surface of resin layer 2 and the low-level pressure transmitter 1402 is 10cm. Resin layer 2 is a mixed cation and anion exchange resin. The mixed cation and anion exchange resin is a mixture of cation exchange resin and anion exchange resin. The ratio of cation exchange resin to anion exchange resin can be adjusted according to the properties of the feed liquid, thereby improving the adaptability and processing efficiency of the device to different feed liquids and optimizing the ion exchange effect.
[0041] The top of the housing 1 is provided with an upper discharge port 8 and an exhaust port 9. The side of the housing 1 away from the feed port 503 is provided with a resin inlet 11 and a resin discharge port 12. The bottom of the housing 1 is surrounded by four support legs 13.
[0042] The exhaust port 9 is used to discharge the gas generated during the ion exchange process and maintain the pressure balance inside the shell 1. The support leg 13 is used to support the shell 1 and keep the shell 1 at a certain distance from the ground, which facilitates the installation and maintenance of the equipment.
Claims
1. A mixed-bed ion exchanger, comprising a housing (1), wherein a resin layer (2) is disposed inside the housing (1), characterized in that, The housing (1) is provided with a feeding assembly (5), which is located on the upper part of the resin layer (2). A cleaning assembly (3) is provided above the feeding assembly (5). The cleaning assembly (3) includes a cleaning pipe (301). One end of the cleaning pipe (301) is connected to a cleaning liquid inlet (4), and the other end of the cleaning pipe (301) is connected to a diversion pipe (302). Three diversion branches (303) are arranged around the diversion pipe (302). A cleaning ball (304) is provided at the end of the diversion branch (303) away from the diversion pipe (302). A middle drain assembly (6) is provided below the feeding assembly (5). The middle drain assembly (6) is located inside the resin layer (2). A support assembly (7) is provided below the middle drain assembly (6). The support assembly (7) is located at the bottom of the resin layer (2). A lower drain port (10) is provided at the bottom of the housing (1). A liquid level and pressure transmitter (14) is provided on one side of the housing (1).
2. The mixed-bed ion exchanger according to claim 1, characterized in that, The feeding assembly (5) includes an inner support (501), which is fixedly installed on the inner wall of the housing (1). Three sets of feeding pipes (502) are fixedly installed on the inner support (501). One end of the feeding pipe (502) passes through the housing (1) and is connected to the inlet (503). The other end of the feeding pipe (502) is fixedly installed on the inner wall of the housing (1).
3. The mixed-bed ion exchanger according to claim 2, characterized in that, The three sets of feed pipes (502) are arranged in parallel to each other, and each set of feed pipes (502) is equipped with several sets of double-headed water caps (504).
4. The mixed-bed ion exchanger according to claim 1, characterized in that, The middle drain assembly (6) includes an inner support second (601), which is fixedly installed on the inner wall of the housing (1). Three sets of middle drain pipes (602) are fixedly installed on the inner support second (601). One end of the middle drain pipe (602) passes through the housing (1) and is connected to the middle drain port (603). The other end of the middle drain pipe (602) is fixedly installed on the inner wall of the housing (1).
5. The mixed-bed ion exchanger according to claim 4, characterized in that, The three sets of middle drain pipes (602) are arranged in parallel to each other, and several sets of double-headed water caps (604) are installed on the middle drain pipes (602).
6. The mixed-bed ion exchanger according to claim 1, characterized in that, The support component (7) includes a perforated plate (701), which is generally arranged in a disc shape, and a number of single-headed water caps (702) are provided on the top of the perforated plate (701).
7. The mixed-bed ion exchanger according to claim 6, characterized in that, The bottom of the perforated plate (701) is provided with a reinforcing rib (703), which is fixedly installed on the inner wall of the shell (1).
8. The mixed-bed ion exchanger according to claim 1, characterized in that, The height of the level pressure transmitter (14) is lower than the height of the feed assembly (5), and the height of the level pressure transmitter (14) is higher than the height of the top surface of the resin layer (2). The level pressure transmitter (14) includes a high level pressure transmitter (1401), and a low level pressure transmitter (1402) is provided below the high level pressure transmitter (1401).
9. The mixed-bed ion exchanger according to claim 8, characterized in that, The distance between the top surface of the resin layer (2) and the low liquid level pressure transmitter (1402) is 10cm. The resin layer (2) is a cation-anion mixed exchange resin.
10. The mixed-bed ion exchanger according to claim 2, characterized in that, The top of the housing (1) is provided with an upper outlet (8) and an exhaust outlet (9). The side of the housing (1) away from the feed inlet (503) is provided with a resin inlet (11) and a resin discharge outlet (12). The bottom of the housing (1) is surrounded by four support legs (13).