CN215327356U - High-efficiency sodium ion exchanger - Google Patents
High-efficiency sodium ion exchanger Download PDFInfo
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- CN215327356U CN215327356U CN202120502480.7U CN202120502480U CN215327356U CN 215327356 U CN215327356 U CN 215327356U CN 202120502480 U CN202120502480 U CN 202120502480U CN 215327356 U CN215327356 U CN 215327356U
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Abstract
The utility model relates to the field of water treatment, in particular to a high-efficiency sodium ion exchanger, which comprises a tank body, wherein a backwashing pipe and a regenerating pipe are arranged on the tank body; the tank body is divided into an original inlet cavity, an exchange cylinder and a cleaning outlet cavity from bottom to top, an original inlet pipe and a waste outlet pipe are arranged on the original inlet cavity, and a cleaning outlet pipe is arranged on the cleaning outlet cavity; and a lower filter plate and an upper filter plate are respectively arranged between the original inlet cavity and the exchange cylinder and between the exchange cylinder and the cleaning cavity, and sodium ion exchange resin is arranged between the upper filter plate and the lower filter plate. The utility model discloses a structural more reasonable, when the back flush resin, the filter screen is difficult to warp or break under the action of the gravity of water and resin and rivers, extension filter screen life prevents that the resin from running off, effect when guaranteeing the back flush.
Description
Technical Field
The utility model relates to the field of water treatment, in particular to a high-efficiency sodium ion exchanger.
Background
The water softener is an ion exchanger, which applies the ion exchange technology and exchanges functional ions on resin with calcium and magnesium ions in water so as to adsorb redundant calcium and magnesium ions in water and achieve the purposes of removing the calcium and magnesium ions in the water and reducing the hardness of the water. The industrial production needs hard water softening and deionized water preparation, and can also be used for decoloring and purifying food and drugs, recovering precious metals and chemical raw materials, treating electroplating wastewater and the like.
The ion exchanger generally has the following operation modes according to different replacement modes: 1. forward flow regeneration and forward flow softening modes: raw water and regenerated liquid enter from the upper part of the exchanger and flow downwards. In the mode, the raw water and the regeneration liquid flow from top to bottom, and the flow direction of the water is consistent with the flow direction of the regeneration liquid, so that the regeneration liquid cannot well perform reduction reaction with the failed resin to increase the salt consumption, the softened water quality is poor, and the mode is rarely used. 2. Softening mode of concurrent softening and countercurrent regeneration: the raw water flows from top to bottom, the regeneration liquid flows from bottom to top, and the soft water flows out from the lower part of the tank body. This way, the regeneration effect can be improved, so the quality of the softened water is good, and the salt amount and the washing water amount can be saved. 3. A countercurrent softening and cocurrent regeneration softening mode: the raw water flows upwards from the lower part of the tank, the regeneration liquid flows downwards from the top, and the softened water flows out from the upper part of the tank body. The flow direction of the regeneration liquid is opposite to the flow direction of the water, so that the utilization rate of the regeneration liquid is improved, and the regeneration liquid is mainly used for small exchangers.
However, in any mode, the existing water softener is not reasonable enough in structural arrangement, and when the resin is washed back, the filter screen is easy to deform or break under the action of the gravity of the water and the resin and the thrust of water flow, so that the resin is lost, and the softening effect of subsequent water is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-efficiency sodium ion exchanger, which aims to solve the problems that the existing water softener is not reasonable enough in structural arrangement, and a filter screen is easy to deform or crack under the action of the gravity of water and resin and the thrust of water flow when the resin is washed reversely.
In order to solve the technical problems, the technical means of the high-efficiency sodium ion exchanger adopted by the utility model are as follows: the device comprises a tank body, wherein a backwashing pipe and a regeneration pipe are arranged on the tank body; the tank body is divided into an original inlet cavity, an exchange cylinder and a cleaning outlet cavity from bottom to top, an original inlet pipe and a waste outlet pipe are arranged on the original inlet cavity, and a cleaning outlet pipe is arranged on the cleaning outlet cavity; and a lower filter plate and an upper filter plate are respectively arranged between the original inlet cavity and the exchange cylinder and between the exchange cylinder and the cleaning cavity, and sodium ion exchange resin is arranged between the upper filter plate and the lower filter plate.
The high-efficiency sodium ion exchanger adopting the technical scheme has the following technical advantages: the softening mode of following current softening, regeneration against current, it is also more reasonable structurally, regeneration liquid gets into the resin layer from jar body top, pass the sodium ion exchange resin layer with certain velocity of flow top-down (resin from the top down divide into the protective layer, working layer and inefficacy layer, the sodium ion exchange resin on working layer and inefficacy layer, adsorbed ion and other impurity are more relatively, the protective layer is less, regeneration liquid contacts at first the protective layer of exchange resin, secondly the working layer, the layer that becomes inefficacy again), the regeneration process from top to bottom, elute the ion that adsorbs the resin and other impurity and detach, the secondary pollution of resin has been avoided. The whole water softener adopts a forward flow softening and reverse flow regeneration mode, raw water to be treated is subjected to immersion exchange from bottom to top, the exchange efficiency is high, the exchange is sufficient, stable and reliable, the exchange process is simple, the effectiveness is stable and reliable, the effective exchange period is long, and the maintenance is simple.
As a preferred scheme, the upper filter plate and the lower filter plate comprise a filter screen frame, a filter screen support plate, a filter screen and a filter screen pressing plate, and the filter screen support plate, the filter screen and the filter screen pressing plate are fixed on the filter screen frame; the filter screen support plate, the filter screen and the screen pressing plate are fixed on the filter screen frame, so that the filter screen can be supported and fixed better, the filter screen can bear larger water impact in unit area while being supported, the filter screen is not easy to damage, and the service life of the filter screen is prolonged; in the medium flowing direction, the screen pressing plate tightly presses the filter screen, the filter screen is tightly attached to the screen pressing plate and the filter screen supporting plate, the filter screen is not easy to deform, and the breakage rate of the filter screen is effectively improved.
As a preferred scheme, the joints among the original inlet cavity, the exchange cylinder and the cleaning cavity are provided with flange plates; the flange plates are arranged at the joints among the original inlet cavity, the original exchange cylinder and the original cleaning cavity.
As a preferred scheme, the original inlet cavity and the cleaning cavity are also respectively provided with a lower air pipe and an upper air pipe.
Preferably, the upper filter plate and the lower filter plate are fixed between the flanges, and the upper filter plate and the lower filter plate are installed in opposite directions; when backwashing and forward washing are carried out, the filter screen can bear larger extrusion impact of the sodium ion exchange resin, the filter screen is prevented from being damaged, the loss of the sodium ion exchange resin is avoided, and the softening effect of a subsequent water softener is kept.
As a preferred scheme, the backwashing pipe and the regeneration pipe are connected to the tank body through a shared pipeline, and a valve for switching the backwashing pipe and the regeneration pipe is arranged on the shared pipeline.
Preferably, the backwashing pipe is arranged on the exchange cylinder, and the regenerating pipe is arranged in the cleaning cavity.
Preferably, the orifice of the backwashing pipe is positioned between the sodium ion exchange resin and the upper filter plate, and the upper surface of the sodium ion exchange resin is lower than the orifice of the regeneration pipe.
Preferably, the sodium ion exchange resin is arranged in a certain space between the upper filter plate and the sodium ion exchange resin.
Preferably, the filter screen support plate is a hollow plate, a honeycomb plate or a wire mesh; make things convenient for water to lead to the filter screen, when reducing weight, can also play certain support fixed action to the filter screen, make the filter screen not only obtain fixedly on the circumference of filter screen, also can obtain the multiple spot fixed in the circle of filter screen, improve the filter screen backup pad and to the supporting role of filter screen, make the filter screen not fragile, increase of service life.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a sectional view A-A of the front view of the present invention;
FIG. 3 is a front view of the upper and lower filter plates of the present invention;
fig. 4 is a cross-sectional view B-B of the upper and lower filter plates of the present invention in elevation view.
The main part symbols in the figures are explained as follows:
1. feeding into a cavity; 2. an exchange cylinder; 3. cleaning the cavity; 4. a lower filter plate; 5. an upper filter plate; 6. feeding the pipe originally; 7. a feed valve; 8. a sewage outlet pipe; 9. a sewage outlet valve; 10. cleaning a pipe; 11. a purge valve; 12. a regenerating pipe; 13. a regeneration valve; 14. backwashing the tubes; 15. A backwash valve; 16. a sodium ion exchange resin; 17. a lower trachea; 18. an upper trachea; 19. a filter screen support plate; 20. pressing the screen plate; 21. a screen frame; 22. filtering with a screen; 23. and (4) bolts.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 and 2, the high-efficiency sodium ion exchanger comprises a tank body, the tank body is divided into an original inlet cavity 1, an exchange cylinder 2 and a cleaning cavity 3 from bottom to top, flange plates are arranged at the joints among the original inlet cavity 1, the exchange cylinder 2 and the cleaning cavity 3, sealing rubber rings are arranged between the original inlet cavity 1 and the exchange cylinder 2 and between the exchange cylinder 2 and the cleaning cavity 3, and annular grooves for fixing the sealing rubber rings are arranged on the flange plates; an original inlet pipe 6 and a sewage outlet pipe 8 are arranged on the original inlet cavity 1, a cleaning outlet pipe 10 and a regeneration pipe 12 are arranged on the cleaning outlet cavity, and a backwashing pipe 14 is arranged on the exchange cylinder 2; a lower filter plate 4 and an upper filter plate 5 are respectively arranged between the original inlet cavity 1 and the exchange cylinder 2, and between the exchange cylinder 2 and the cleaning cavity 3, the upper filter plate 5 and the lower filter plate 4 are fixed between flange plates, sodium ion exchange resin 16 is arranged between the upper filter plate 5 and the lower filter plate 4, the sodium ion exchange resin 16 is fixed between the upper filter plate 5 and the lower filter plate 4, a certain space is left between the sodium ion exchange resin 16 and the upper filter plate 5, and the upper surface of the sodium ion exchange resin 16 is lower than the orifice of the back flushing pipe 14; the upper filter plate 5 is the same as the lower filter plate 4, the upper filter plate 5 and the lower filter plate 4 comprise a filter screen frame 21, a filter screen support plate 19, a filter screen 22 and a filter screen pressing plate 20, and the filter screen support plate 19, the filter screen 22 and the filter screen pressing plate 20 are fixed on the filter screen frame 21; the original inlet cavity 1 and the cleaning cavity 3 are respectively provided with a lower air pipe 17 and an upper air pipe 18, and the lower air pipe 17 and the upper air pipe 18 are matched for use and are used for providing air flow with certain pressure and flow velocity for the interior of the tank body. The original inlet pipe 6, the sewage outlet pipe 8, the cleaning outlet pipe 10, the regeneration pipe 12 and the backwashing pipe 14 are respectively and correspondingly provided with an original inlet valve 7, a sewage outlet valve 9, a cleaning outlet valve 11, a regeneration valve 13 and a backwashing valve 15.
As shown in fig. 3 and 4, the screen frame 21 and the screen pressing plate 20 are circular rings, the cross section of the screen frame 21 is "Z", the corner of the "Z" shape is a right angle, the screen support plate 19, the screen pressing plate 20, the screen frame 21, and the screen 22 are mounted at the inner corner of the screen frame 21 by bolts 23, the screen frame 21 is provided with a reinforcing rib parallel to the screen support plate 19, the reinforcing rib is attached to the screen support plate 19, and the screen support plate 19 is a hollowed plate, a honeycomb plate, a wire mesh, or the like.
And (3) normal working process: raw water passes through the raw inlet cavity 1 through the raw inlet pipe 6 under certain pressure and flow, then enters the exchange cylinder 2 filled with sodium ion exchange resin, and passes through the resin layer at a proper flow velocity to enable the resin layer to float upwards (the upper reserved space of the tank body is precisely calculated, the resin layer does not float up and is relatively high in water outlet efficiency), the contact surface of the resin and the raw water is increased, calcium and magnesium ions in the raw water are fully exchanged with sodium ions on the surface of water, and Na + in the sodium ion exchange resin and cations (Ca & lt + & gt) in the raw water2+、Mg2+、Fe2+… …, etc.) to make the Ca of the effluent water exchange2+、Mg2+The ion content reaches the softening requirement, and the softened raw water flows out from the cleaning outlet pipe 11 through the cleaning outlet cavity 3.
The process of reducing the sodium ion exchange resin comprises the following steps:
A. and (3) washing process: after the sodium ion exchange resin in the tank body is invalid, the sodium ion exchange resin is washed from top to bottom by water through a backwashing pipe 14 before being regenerated by a regeneration liquid. (the backwashing aims at two points: 1. the compacted sodium ion exchange resin is loosened by backwashing, which is beneficial to fully contacting sodium ion exchange resin particles with regeneration liquid, and 2. impurities accumulated on the surface of the resin are discharged by backwashing, so that the resistance of the sodium ion exchange resin to water is reduced).
B. And (3) a regeneration process: the regeneration liquid (salt solution) is added into the tank body through the regeneration pipe 12 under a certain concentration and flow rate, the regeneration liquid soaks the sodium ion exchange resin for a period of time, after the regeneration liquid soaks the sodium ion exchange resin, the original exchange capacity is recovered, and dirt generated in the regeneration process is discharged from the dirt discharge pipe 8.
C. Displacement process (slow wash): in the regeneration process, the regeneration liquid which does not participate in the regeneration exchange still exists in the exchanger, and softened water with the flow rate less than or equal to the flow rate of the regeneration liquid is adopted for cleaning (slow cleaning) so as to fully utilize the regeneration action of the regeneration liquid and lighten the load of forward cleaning, and dirt in the replacement process is discharged from the dirt discharge pipe 8.
D. Forward wash process (quick wash): and (4) removing the residual regeneration liquid in the sodium ion exchange resin until the water is softened and qualified when the water softener is cleaned at a normal flow rate.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A high-efficiency sodium ion exchanger is characterized in that: the device comprises a tank body, wherein a backwashing pipe and a regeneration pipe are arranged on the tank body; the tank body is divided into an original inlet cavity, an exchange cylinder and a cleaning outlet cavity from bottom to top, an original inlet pipe and a waste outlet pipe are arranged on the original inlet cavity, and a cleaning outlet pipe is arranged on the cleaning outlet cavity; and a lower filter plate and an upper filter plate are respectively arranged between the original inlet cavity and the exchange cylinder and between the exchange cylinder and the cleaning cavity, and sodium ion exchange resin is arranged between the upper filter plate and the lower filter plate.
2. A high efficiency sodium ion exchanger as claimed in claim 1, wherein: the upper filter plate and the lower filter plate comprise a filter screen frame, a filter screen supporting plate, a filter screen and a filter screen pressing plate, and the filter screen supporting plate, the filter screen and the filter screen pressing plate are fixed on the filter screen frame.
3. A high efficiency sodium ion exchanger as claimed in claim 1, wherein: and flanges are arranged at the joints among the original inlet cavity, the exchange cylinder and the cleaning cavity.
4. A high efficiency sodium ion exchanger as claimed in claim 1, wherein: the original inlet cavity and the cleaning cavity are also respectively provided with a lower air pipe and an upper air pipe.
5. A high efficiency sodium ion exchanger as claimed in claim 3, wherein: the upper filter plate and the lower filter plate are fixed between the flange plates, and the mounting directions of the upper filter plate and the lower filter plate are opposite.
6. A high efficiency sodium ion exchanger as claimed in claim 1, wherein: the backwashing pipe and the regenerating pipe are connected to the tank body through a common pipeline, and a valve for switching the backwashing pipe and the regenerating pipe is arranged on the common pipeline.
7. A high efficiency sodium ion exchanger as claimed in claim 1, wherein: the backwashing pipe is arranged on the exchange cylinder, and the regenerating pipe is arranged in the cleaning cavity.
8. The high efficiency sodium ion exchanger of claim 6, wherein: the pipe orifice of the backwashing pipe is positioned between the sodium ion exchange resin and the upper filter plate, and the upper surface of the sodium ion exchange resin is lower than the pipe orifice of the regeneration pipe.
9. A high efficiency sodium ion exchanger as claimed in claim 1, wherein: the sodium ion exchange resin is arranged with a certain space between the upper filter plate and the sodium ion exchange resin.
10. A high efficiency sodium ion exchanger as claimed in claim 2 wherein: the filter screen supporting plate is a hollow plate or a honeycomb plate or an iron wire net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502480.7U CN215327356U (en) | 2021-03-10 | 2021-03-10 | High-efficiency sodium ion exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502480.7U CN215327356U (en) | 2021-03-10 | 2021-03-10 | High-efficiency sodium ion exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215327356U true CN215327356U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120502480.7U Active CN215327356U (en) | 2021-03-10 | 2021-03-10 | High-efficiency sodium ion exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215327356U (en) |
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2021
- 2021-03-10 CN CN202120502480.7U patent/CN215327356U/en active Active
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