In-vivo regeneration ion exchange device

Abstract

The utility model discloses an in-vivo regeneration ion exchange device which comprises a tank body, a water inlet end at the top of the tank body is connected with a water inlet pipe extending downwards on the outer wall of the tank body, and the lower end of the water inlet pipe is connected with a pipeline A which is of a T-shaped structure and used for water inlet and backwashing. Air in the tank body is compressed and discharged through the compressed air port until a certain vacuum state is reached, so that alkali liquor uniformly scattered in a stock solution is fully fused, and the phenomenon that bubbles are generated in anion-cation resin obtained by washing regenerated ions in the body is avoided; a water inlet is utilized to enable water to pass through a drainage cap on a porous plate to carry out backwashing on the stock solution, and the stock solution is mixed and washed through forward washing after backwashing, so that the stock solution and alkali liquor are fully subjected to regenerative ion exchange to generate anion-cation resin on an anion-cation bed; and the anion and cation resin is discharged to the outside through the discharging resin pipe at one end outside the resin middle pipe, so that the quality of the resin obtained through regeneration ion exchange is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ion exchange, and particularly relates to an in-vivo regeneration ion exchange device. Background Art

[0002] The in-vivo counter-current dynamic regeneration ion exchanger, namely the anion-cation bed, in the process of its use, often inputs the stock solution into the interior of the anion-cation bed, and then conducts ion exchange. Since most of the stock solution contains more impurities, the impurities accumulate in the interior of the exchanger for a long time, which will affect the use of the main body of the exchanger. And most of the existing exchangers are chamber-type filters, so it is necessary to clean their interiors regularly. The existing filter components cannot clean the interior without affecting the transportation of the stock solution, thus being inconvenient for people to use.

[0003] For this reason, an in-vivo counter-current dynamic regeneration ion exchanger with the publication number of "CN208229928U". This in-vivo counter-current dynamic regeneration ion exchanger adds the stock solution by arranging a pipeline connector on one side of the main body of the exchanger. The stock solution is filtered by arranging filter components on the outer side of the pipeline connector and between the pipeline connector and the conveying pipeline, so as to avoid the accumulation of impurities in the interior of the main body of the exchanger and affect the use of the main body of the exchanger. The filter component main body is composed of an installation base and a sliding limit chamber. Through holes corresponding to the conveying pipeline and the pipeline connector are opened on both sides thereof for the transportation of the stock solution. And a limit baffle is arranged inside the sliding limit chamber as the base of the filter screen component. Filter grooves corresponding to the through holes are opened on its surface for the installation of the filter screen component composed of a limit plate frame and a positioning installation groove. Installation grooves are opened on the surface of the limit plate frame for the installation of the filter screen.

[0004] However, for the above-mentioned in-vivo counter-current dynamic regeneration ion exchanger, although the stock solution is filtered by arranging filter components on the outer side of the pipeline connector and between the pipeline connector and the conveying pipeline, so as to avoid the accumulation of impurities in the interior of the main body of the exchanger and affect the use of the main body of the exchanger. The filter component main body is composed of an installation base and a sliding limit chamber. Through holes corresponding to the conveying pipeline and the pipeline connector are opened on both sides thereof for the transportation of the stock solution. There are still the following obvious defects in the process of use: However, when processing, the water to be treated is directly input into the stock solution only through the pipeline, so that the mixed ion exchanger output from the exchanger cannot achieve the effect of uniform ion mixing and exchange, and the problem of blockage caused by impurities and particulate matters existing in the treated water will occur. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an in-vivo regeneration ion exchange device to solve the problems raised in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An in-vivo regenerative ion exchange device, comprising:

[0007] A tank body, the water inlet end at the top of the tank body is connected to a water inlet pipe extending downward on the outer wall of the tank. Inside the upper end of the tank body, there is a dismountable filter frame in a cylindrical frame structure for filtering particulate matter and impurities in water. Inside the dismountable filter frame, there are three impurity filter plates vertically arranged to filter the treated water before ion exchange to prevent impurities from clogging the pipeline, and the bottom end inside the dismountable filter frame is evenly provided with water outlet holes;

[0008] A perforated plate member, the perforated plate member is horizontally arranged at the bottom side inside the tank body, and a resin middle pipe is provided corresponding to the upper end and extends through to the outside of one side of the tank body. Vertically and evenly arranged support pipes are provided at the bottom of the perforated plate member, and an alkali liquid distribution pipe in the form of a branch mother pipe is provided corresponding to the upper end of the resin middle pipe and extends through to the outside of the tank body at one end.

[0009] Preferably, the lower end of the water inlet pipe is connected to a pipe A in a T-shaped structure for water inlet and backwashing. A pipe B for water outlet and backwashing water inlet is provided corresponding to the bottom side of the pipe A and is connected to the front end face outside the tank body. The lower end face of the pipe B is vertically connected to a pipe C for normal washing drainage and acid liquid input, and the bottom end of the pipe C is communicated with a compressed air port for air compression of the tank body.

[0010] Preferably, the two ends of the pipe A are respectively a water inlet and a backwashing drainage port, the two ends of the pipe B are respectively a water outlet and a backwashing water inlet, the two ends of the pipe C are respectively a normal washing drainage port and an acid inlet. Connecting control valves are provided at the ports of the water inlet and the backwashing drainage port, the water outlet and the backwashing water inlet, the normal washing drainage port and the acid inlet, which can enhance the mixing effect of backwashing and normal washing of water and cation and anion resins.

[0011] Preferably, the water inlet pipe penetrates through to the top end inside the tank body and is communicated with a water collection annular pipe. An exhaust pipe is connected to one side of the water inlet pipe and is vertically downward, and a sealing valve is installed on the exhaust pipe, which can make the alkali liquid input into the tank body be evenly distributed and flow out.

[0012] Preferably, the support pipes arranged on the perforated plate member are supported and fixed at the bottom of the tank body, and the perforated plate member is connected to the water inlet pipe. Drainage caps are evenly penetrated at the end of the perforated plate member, and the water inlet impact force is used to evenly mix water and cation and anion resins.

[0013] Preferably, pressure gauges for real-time monitoring of the liquid pressure conveyed by the pipes are provided on the pipe A and the pipe B. A discharge valve is provided at one end of the resin middle pipe located outside the tank body, which is beneficial to discharging the obtained resin raw material through the resin middle pipe.

[0014] Preferably, a manhole for personnel to enter the tank body for component installation is provided on one side of the outside of the tank body, which is convenient for overhauling and maintaining the inside of the tank body.

[0015] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: for this in-vessel regeneration ion exchange device, through the water inlet and backwash drain port provided at both ends of pipeline A on the water inlet pipe, the water outlet and backwash water inlet provided at both ends of pipeline B, the positive wash drain port and acid inlet provided at both ends of pipeline C, and the lye distribution pipe provided inside the tank body and the drain caps evenly arranged on the perforated plate member, when the original liquid inside the tank body is injected with lye, the lye is evenly scattered in the original liquid by using the lye distribution pipe. The air inside the tank body is compressed and discharged through the compressed air port until a certain vacuum state is reached, so that the lye evenly scattered in the original liquid can be fully fused, avoiding the phenomenon of generating bubbles in the anion and cation resins obtained by in-vessel regeneration ion flushing. And the water is used to backwash the original liquid through the drain caps on the perforated plate member by using the water inlet, and after backwashing, the original liquid is mixed and washed by positive flushing, so that the original liquid and the lye can fully carry out regeneration ion exchange to generate anion and cation resins on the anion and cation beds, and the anion and cation resins are discharged to the outside through the discharge resin pipe at one end outside the resin middle pipe, further improving the quality of the resin obtained by regeneration ion exchange.

[0016] Through the combination of the disassembly and installation filter frame, impurity filter plate, and water outlet holes provided at the vertical bottom end of the water inlet in the tank body, when the treated water is subjected to anion and cation exchange, the treated water can enter through the water inlet and then the water is evenly flowed downward to the three-layer impurity filter plate by using the distribution water pipe heads evenly arranged at the bottom of the water collection annular pipe, which can filter out larger particulate matters and other impurities existing in the treated water, enabling the treated water to fully carry out regeneration ion exchange during positive flushing and backwashing, and enhancing the quality of ion exchange of the treated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the main view of the tank body of the present utility model;

[0019] Figure 3 is a schematic diagram of the top view structure of the tank body of the present utility model.

[0020] In the figure: 1. Tank body; 2. Water inlet pipe; 3. Pipeline A; 4. Pipeline B; 5. Pipeline C; 6. Compressed air port; 7. Perforated plate member; 8. Resin middle pipe; 9. Support pipe; 10. Lye distribution pipe; 11. Water collection annular pipe; 12. Exhaust pipeline; 13. Drain cap; 14. Pressure gauge; 15. Manhole; 16. Disassembly and installation filter frame; 17. Impurity filter plate; 18. Water outlet holes; 19. Distribution water pipe head. DETAILED DESCRIPTION OF THE INVENTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-3 , the present invention provides a technical solution: an in-vivo regenerative ion exchange device, including:

[0023] A tank body 1, the water inlet end at the top of the tank body 1 is connected with a water inlet pipe 2 extending downward on the outer wall of the tank body 1, which can make water evenly enter from the top end of the tank body 1 through the water inlet pipe 2, and can repeatedly perform positive and reverse flushing operations on the internal structure of the tank body 1 by the structure for backwashing and normal flushing, and fully perform the exchange of in-vivo regenerative ions to generate resin. At the upper end inside the tank body 1, there is a dismountable filter frame 16 with a cylindrical frame structure for filtering particulate matter and impurities in water, and three impurity filter plates 17 are vertically arranged in the dismountable filter frame 16 to filter the treated water before ion exchange to prevent impurities from blocking the pipeline. The lower end of the dismountable filter frame 16 is evenly provided with water outlet holes 18. The lower end of the water inlet pipe 2 is connected with a pipe A3 with a T-shaped structure for water inlet and backwashing, which can convey water upward to a porous plate member 7 for flushing the stock solution. A pipe B4 for water outlet and backwashing water inlet is arranged on the corresponding bottom side of the pipe A3 and is connected to the front end face outside the tank body 1. During the over-flushing of backwashing, water can enter through the pipe B4 to backwash the stock solution, and after backwashing, it is discharged from the other end of the pipe B4 to the outside. The lower end face of the pipe B4 is vertically connected with a pipe C5 for normal flushing drainage and acid solution input, which can discharge the water generated during normal flushing from one end of the pipe C5, and then convey the acid solution into the interior of the tank body 1. The bottom end of the pipe C5 is communicated with a compressed air port 6 for air compression of the tank body 1, which can extract and compress the air inside the tank body 1 to prevent bubbles from generating in the resin generated during the mixed flushing of the stock solution;

[0024] A porous plate member 7 is horizontally arranged at the bottom side inside the tank body 1, which can perform positive and reverse flushing on various liquids to exchange the regenerated ions to obtain resin on the anion and cation beds in the tank body 1. A resin middle pipe 8 is provided corresponding to the upper end of the porous plate member 7 and extends through to the outside of one side of the tank body 1, which can discharge the anion and cation resins of the regenerative ion exchange to the outside. The bottom of the porous plate member 7 is vertically and evenly provided with support pipes 9 to ensure the stability of the porous plate member 7 during operation. The upper end of the resin middle pipe 8 is provided with an alkali solution distribution pipe 10 with one end penetrating through to the outside of the tank body 1 and being a branch mother pipe type, so as to evenly distribute the alkali solution on the anion and cation beds for flushing and regenerating ion exchange.

[0025] The two ends of pipeline A3 are respectively a water inlet and a backwash drain outlet, and the water for backwashing is discharged from the tank body 1 to the outside, and the backwashing operation is carried out by inputting water through the water inlet. The two ends of pipeline B4 are respectively a water outlet and a backwash water inlet, and the water from the outside enters the tank body 1 through the backwash water inlet and is discharged through the drain cap 13 for the backwashing operation. The two ends of pipeline C5 are respectively a normal washing drain outlet and an acid inlet. Connecting control valves are provided at the ports of the water inlet and the backwash drain outlet, the water outlet and the backwash water inlet, and the normal washing drain outlet and the acid inlet. The water inlet pipe 2 penetrates through the position at the top end inside the tank body 1 and is communicated with a water collecting annular pipe 11 in the form of a branch mother pipe. A distribution water pipe head 19 is evenly arranged around the bottom of the water collecting annular pipe 11. One side of the water inlet pipe 2 is connected with a vertically downward exhaust pipeline 12, and a sealing valve is installed on the exhaust pipeline 12. The support pipe 9 arranged on the porous plate member 7 is supported and fixed at the bottom of the tank body 1, and the porous plate member 7 is connected to the water inlet pipe 2, and drain caps 13 are evenly penetrated at the end of the porous plate member 7. Pressure gauges 14 for real-time monitoring of the liquid pressure conveyed by the pipelines are provided on pipeline A3 and pipeline B4. A discharge valve is provided at one end of the resin middle pipe 8 located outside the tank body 1. A manhole 15 for allowing personnel to enter the tank body 1 to install internal components is provided on one side outside the tank body 1, so that personnel can enter to repair the internal components when the tank body 1 is not in use.

[0026] The working cycle of the regenerative mixed ion exchange column is: backwashing and delamination → failure → draining → feeding the regenerant → displacement → mixing of anion and cation resins → normal washing → the next water production cycle.

[0027] Specifically, during use, first connect the water inlet pipe 2 to an external water pipe, and connect the backwash water inlet to an external flushing pipe through a control valve. Connect the acid inlet to a tank 1 or a pump body for storing and discharging acid externally through a control valve. Connect the input end of the lye distribution pipe 10 to an external lye pump body. Connect the resin middle pipe 8 to an external collection box through a connecting pipe. Drain caps 13 can be evenly arranged on the lye distribution pipe 10 and the perforated plate member 7 provided in the tank 1, so that the original liquid inside the tank 1 is evenly scattered into the original liquid when lye is injected by using the lye distribution pipe 10. Compress and discharge the air inside the tank 1 through the compressed air port 6 until a certain vacuum state is reached, so that the lye evenly scattered in the original liquid is fully fused, avoiding the phenomenon of generating bubbles in the cation and anion resins obtained by in-vessel regeneration ion flushing. Then, use the water inlet to wash the original liquid reversely through the drain caps 13 on the perforated plate member 7, and after reverse flushing, perform mixed flushing on the original liquid through forward flushing, so that the original liquid and lye fully perform regenerative ion exchange to generate cation and anion resins on the cation and anion beds, and the cation and anion resins can be discharged to the outside through the discharge resin pipe at the outer end of the resin middle pipe 8. When performing cation and anion exchange on the treated water, the treated water can enter through the water inlet pipe 2 and then flow evenly downward to the three-layer impurity filter plate 17 provided through the distribution downpipe heads 19 evenly arranged at the bottom of the water collection annular pipe 11, which can filter out larger particulate matters and other impurities existing in the treated water, enabling the treated water to fully perform regenerative ion exchange during forward flushing and reverse flushing, enhancing the quality of ion exchange of the treated water, further improving the quality of the resin obtained by regenerative ion exchange, and the mixing effect can be calculated and controlled (CoV deviation degree). At the same time, the CoV range can be up to 5% according to customer requirements, and the concentration of the fluid is continuous and balanced across the entire cross-section of the cation and anion beds.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An in-vivo regenerable ion exchange device, characterized in that, Comprising: A tank body (1), the water inlet end at the top of the tank body (1) is connected to a water inlet pipe (2) extending downward along the outer wall of the tank body (1). An upper end inside the tank body (1) is provided with a detachable filter frame (16) in a cylindrical frame structure for filtering particulate matter and impurities in water. And inside the detachable filter frame (16), three impurity filter plates (17) are vertically arranged to filter the treated water before ion exchange to prevent impurities from blocking the pipeline. The inner bottom end of the detachable filter frame (16) is evenly provided with water outlet holes (18); A perforated plate member (7), the perforated plate member (7) is horizontally arranged at the bottom side inside the tank body (1), and a resin middle pipe (8) is provided corresponding to the upper end of the perforated plate member (7) and extends through to the outside of one side of the tank body (1). Vertically and evenly arranged support pipes (9) are provided at the bottom of the perforated plate member (7). The upper end of the resin middle pipe (8) is provided with an alkali liquid distribution pipe (10) with one end penetrating through to the outside of the tank body (1) and being in the form of a branch mother pipe.

2. The in vivo regenerable ion exchange device according to claim 1, wherein: The lower end of the water inlet pipe (2) is connected to a pipe A (3) in a T-shaped structure for water inlet and backwashing. A pipe B (4) for water outlet and backwashing water inlet is provided at the corresponding bottom side of the pipe A (3) and is connected to the front end face outside the tank body (1). And a pipe C (5) for normal washing drainage and acid liquid input is vertically connected to the lower end face of the pipe B (4). The bottom end of the pipe C (5) is communicated with a compressed air port (6) for air compression of the tank body (1).

3. The in-vivo regenerative ion exchange device according to claim 2, wherein: The two ends of the pipe A (3) are respectively a water inlet and a backwashing drainage port. The two ends of the pipe B (4) are respectively a water outlet and a backwashing water inlet. The two ends of the pipe C (5) are respectively a normal washing drainage port and an acid inlet. Connecting control valves are provided at the ports of the water inlet and the backwashing drainage port, the water outlet and the backwashing water inlet, and the normal washing drainage port and the acid inlet.

4. The in-vivo regenerable ion exchange device according to claim 3, characterized in that: The water inlet pipe (2) penetrates through to the top end inside the tank body (1) and is communicated with a water collection annular pipe (11). A distribution water outlet head (19) is evenly arranged around the bottom of the water collection annular pipe (11). One side of the water inlet pipe (2) is connected with a vertically downward exhaust pipe (12), and a sealing valve is installed on the exhaust pipe (12).

5. The in-vivo regenerable ion exchange device according to claim 1, characterized in that: The support pipes (9) arranged on the perforated plate member (7) are supported and fixed at the bottom of the tank body (1). The perforated plate member (7) is connected to the water inlet pipe (2), and drain caps (13) are evenly penetrated at the end of the perforated plate member (7).

6. The in-vivo regenerative ion exchange device according to claim 4, characterized in that: The pipes A (3) and the pipe B (4) are provided with pressure gauges (14) for real-time monitoring of the liquid pressure conveyed by the pipes. A discharge valve is provided at one end of the resin middle pipe (8) located outside the tank body (1).

7. The in vivo regenerable ion exchange device according to claim 1, wherein: A manhole (15) for allowing personnel to enter the tank body (1) for component installation is provided on one side outside the tank body (1).

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