CN209778384U - Desalination mixed bed resin separation system - Google Patents
Desalination mixed bed resin separation system Download PDFInfo
- Publication number
- CN209778384U CN209778384U CN201920253073.XU CN201920253073U CN209778384U CN 209778384 U CN209778384 U CN 209778384U CN 201920253073 U CN201920253073 U CN 201920253073U CN 209778384 U CN209778384 U CN 209778384U
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- Prior art keywords
- resin
- water
- resin separation
- circulating
- valve
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- 239000011347 resin Substances 0.000 title claims abstract description 143
- 229920005989 resin Polymers 0.000 title claims abstract description 143
- 238000000926 separation method Methods 0.000 title claims abstract description 79
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 154
- 150000001450 anions Chemical class 0.000 claims abstract description 28
- 150000001768 cations Chemical class 0.000 claims abstract description 20
- 239000008213 purified water Substances 0.000 claims description 18
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 238000005201 scrubbing Methods 0.000 claims description 8
- 238000011001 backwashing Methods 0.000 claims description 6
- 125000002091 cationic group Chemical group 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000011069 regeneration method Methods 0.000 abstract description 7
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000008929 regeneration Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 5
- 239000003957 anion exchange resin Substances 0.000 description 5
- 239000003729 cation exchange resin Substances 0.000 description 5
- 238000011033 desalting Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The utility model discloses a mixed bed resin separation system of desalination. The utility model discloses a mixed bed resin separation system of desalination includes resin separation post, circulating water tank and circulating water pump, forms circulation circuit through the pipeline intercommunication between resin separation post, circulating water tank and the circulating water pump, and the resin is cleaned to water or air, and after detaching resin surface pollutant, can carry out forced circulation backwash to the resin, until cloudy, cation resin complete separation. The utility model discloses simple structure, can realize mixing the separation of bed inefficacy anion and cation resin under lower equipment input condition to improve the regeneration effect of resin, reduce the emission of discarded object, reduce use cost.
Description
Technical Field
The utility model relates to a water treatment technical field, concretely relates to bed resin separation system is mixed in desalination.
Background
The mixed bed means that water or feed liquid passes through a system filled with a hydrogen type cation exchange resin and a system filled with a hydroxide type anion exchange resin. The hydrogen type cation exchange resin is used for removing cations in water or feed liquid; hydroxide anion exchange resins are used to remove anions from the water or feed. The mixed bed can remove various mineral salts from water or feed liquid. In order to obtain better desalting effect, strong acid cation exchange resin and strong base anion exchange resin are loaded in the mixed bed. Usually, after a certain period of time or a certain batch, the adsorption amount of the resin in the mixed bed reaches saturation, so that the desalting effect is reduced, and the resin can be regenerated by an on-line regeneration method. However, since the on-line regeneration method cannot separate the anion exchange resin from the cation exchange resin, the regeneration effect of the resin often cannot meet the use requirement, and the resin needs to be replaced after being used for 2-3 times, which increases the amount of waste and the cost. Therefore, it is necessary to develop a desalination mixed bed resin separation system to further improve the resin regeneration effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the weak point of prior art and provide a mixed bed resin separation system of desalination, effectively separate the anion exchange resin and the cation exchange resin that became invalid.
In order to achieve the purpose, the utility model adopts the following technical scheme:
A desalination mixed bed resin separation system comprises a resin separation column, a circulating water tank and a circulating water pump; the top of the column body of the resin separation column is provided with a water inlet A, the water inlet A is respectively connected with purified water and compressed air water through a water inlet valve A and an air inlet valve A, the purified water and the compressed air are controlled to respectively enter the resin separation column, the water inlet A is also connected with a vacuum pump through a vacuum pumping valve, and air in the resin separation column is pumped; the bottom of the column body of the resin separation column is provided with a water inlet B, the water inlet B is respectively connected with purified water and compressed air through a water inlet valve B and an air inlet valve B, and the purified water and the compressed air are controlled to respectively enter the resin separation column; the top and the bottom in the column body are respectively provided with a water distribution device, the side surface of the column body of the resin separation column is provided with an anion resin outlet, a cation resin outlet and a flushing discharge port, the flushing discharge port is connected with a circulating water tank, the circulating water tank is connected with a water inlet B, and a circulating water pump for providing power for circulating backwashing is arranged between the circulating water tank and the water inlet B.
After the ineffective anion-cation resin is pumped into the separation column from the anion resin outlet, purified water or compressed air is firstly introduced from a water inlet B at the bottom of the column body for scrubbing once, so that the pollutants with lighter weight in the resin are separated; then starting a circulating water pump outside the resin separation column body, feeding water from a water inlet B at the bottom, communicating the resin separation column, a circulating water tank and the circulating water pump through pipelines to form a circulating loop, and carrying out forced circulating backwashing on the resin in the column body until the anion resin and the cation resin are completely separated; and extracting the separated anion resin from the anion resin outlet, and extracting the cation resin from the cation resin outlet.
Preferably, the water distribution device is a pore plate water cap type water distribution device.
Preferably, the pore plate water cap type water distribution device comprises a porous plate adopting a flat plate structure and a water cap arranged on the porous plate.
Preferably, the bottom of the circulating water tank is provided with a sewage draining outlet, and the sewage draining outlet is provided with a sewage draining outlet valve.
Preferably, an inlet valve for scrubbing is arranged between the water inlet B and the water inlet valve B and is used for controlling purified water or compressed air to enter the resin separation column.
Preferably, a flushing discharge port valve is arranged between the flushing discharge port and the circulating water tank; a water outlet valve of the circulating water tank is arranged between the circulating water tank and the circulating water pump; and a circulating inlet valve is arranged between the circulating water pump and the water inlet B.
Preferably, an anion resin outlet valve is arranged at the anion resin outlet; and a cationic resin outlet valve is arranged at the cationic resin outlet.
Preferably, the top of the column body of the resin separation column is also provided with a pressure gauge.
Preferably, the material of resin separation post is organic glass, and the cylinder is transparent completely, is favorable to observing resin washing and separation effect.
Compared with the prior art, the beneficial effects of the utility model are that:
The utility model discloses a bed resin separation system is mixed in desalination simple structure, can realize mixing the separation of bed inefficacy anion and cation resin under lower equipment input condition to improve the regeneration effect of resin, reduce the emission of discarded object, reduce use cost.
Drawings
FIG. 1 is a diagram of the resin separation system of the mixed desalting bed of the present invention, in which 1-resin separation column, 2-circulation water tank, 3-circulation water pump, 4-inlet valve A, 5-inlet valve A, 6-evacuation valve, 7-vacuum pump, 8-inlet valve B, 9-inlet valve B, 10-water distributor, 11-perforated plate, 12-water cap, 13-drain valve, 14-inlet valve for scrubbing, 15-discharge valve for flushing, 16-outlet valve for circulation water tank, 17-inlet valve for circulation, 18-outlet valve for anion resin, 19-outlet valve for cation resin, 20-pressure gauge.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific embodiments. It will be understood by those skilled in the art that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the examples, the experimental methods used were all conventional methods unless otherwise specified, and the materials, reagents and the like used were commercially available without otherwise specified.
A desalination mixed bed resin separation system is shown in figure 1, and comprises a resin separation column 1, a circulating water tank 2 and a circulating water pump 3; the top of the column body of the resin separation column 1 is provided with a water inlet A, the water inlet A is respectively connected with purified water and compressed air through a water inlet valve A4 and an air inlet valve A5, the purified water and the compressed air are controlled to respectively enter the resin separation column 1, the water inlet A is also connected with a vacuum pump 7 through a vacuum pumping valve 6, and air in the resin separation column is pumped; the bottom of the column body of the resin separation column 1 is provided with a water inlet B, the water inlet B is respectively connected with purified water and compressed air through a water inlet valve B8 and an air inlet valve B9, and the purified water and the compressed air are controlled to respectively enter the resin separation column 1; the top and the bottom in the column body are respectively provided with a water distribution device 10, the side surface of the column body of the resin separation column 1 is provided with an anion resin outlet, a cation resin outlet and a flushing discharge port, the flushing discharge port is connected with a circulating water tank 2, the circulating water tank 2 is connected with a water inlet B, and a circulating water pump 3 used for providing power for circulating backwashing is arranged between the circulating water tank 2 and the water inlet B.
The utility model discloses well anion resin export and inefficacy resin import sharing.
The water inlet B is used for enabling pure water and compressed air to directly enter scrubbing and circularly separating after scrubbing is finished.
The resin separation column 1 can realize the following functions: purified water or air is introduced to scrub the resin to remove the pollutants on the surface of the failed resin; backwashing with water to promote the separation of the anion resin and the cation resin; the "interfacial resin" which is not completely separated is temporarily stored for the next separation. The design pressure of the resin separation column of the utility model is 0.20 MPa.
According to the size of the resin separation column 1, a fluid delivery pump such as an anti-corrosion clean water pump, a hose pump, a peristaltic pump, a pneumatic pump and the like can be selected as a circulating water pump, after resin is scrubbed by water or air to remove pollutants and resin fragments on the surface of the resin, the resin is forcedly circulated and backwashed by utilizing water stored in the resin separation column, so that the anion resin and the cation resin are separated, and the consumption of water is effectively reduced.
The water distribution device 10 is a pore plate water cap type water distribution device.
The pore plate water cap type water distribution device comprises a pore plate 11 adopting a flat plate structure and a water cap 12 arranged on the pore plate.
the bottom of the circulating water tank 2 is provided with a sewage discharge outlet, and the sewage discharge outlet is provided with a sewage discharge outlet valve 13.
an inlet valve 14 for scrubbing is arranged between the water inlet B and the water inlet valve B8 and is used for controlling purified water or compressed air to enter the resin separation column 1.
A flushing discharge port valve 15 is arranged between the flushing discharge port and the circulating water tank; a water outlet valve 16 of the circulating water tank is arranged between the circulating water tank and the circulating water pump; an inlet valve 17 for circulation is arranged between the circulating water pump 3 and the water inlet B.
an anion resin outlet valve 18 is arranged at the anion resin outlet; the cation resin outlet is provided with a cation resin outlet valve 19.
And the top of the column body of the resin separation column is also provided with a pressure gauge 20.
The resin separation column is made of organic glass, and the column body is completely transparent, so that the resin cleaning and separation effects can be observed.
The utility model discloses a desalination mixes bed resin separation system's work flow does:
The anion resin outlet of the utility model can be used as a failure resin inlet, after the failure anion resin is pumped into the resin separation column from the anion resin outlet, purified water or air is firstly respectively introduced from the water inlet B at the bottom of the column body through the control valve for one-time scrubbing, so that the pollutant with lighter mass in the failure resin is separated out, the vacuum pump is started, and the air in the resin separation column is pumped out;
Starting a circulating water pump outside the resin separation column, enabling water in the resin separation column to enter a circulating water tank from a flushing discharge port, enabling the water to enter the separation column from a water inlet B at the bottom of the resin separation column through a valve and the circulating water pump, enabling the resin separation column, the circulating water tank and the circulating water pump to be communicated through pipelines to form a circulating loop, carrying out forced circulating backwashing on resin in the column, gradually separating anion resin from cation resin, enabling the cation resin to be on the lower layer, and enabling the anion resin to be on the upper layer;
after the separation is finished, opening a valve of a cation resin outlet, discharging part of cation resin, making a separation interface slightly lower than an anion resin outlet, then discharging all anion resin from the anion resin outlet, and finally discharging the cation resin outlet; the waste water in the circulating water tank can be discharged through a sewage outlet.
The utility model discloses a bed resin separation system is mixed in desalination simple structure, can realize mixing the separation of bed inefficacy negative and positive resin under lower equipment input condition to improve the regeneration effect of resin, reduce the emission of discarded object, reduce use cost.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A desalination mixed bed resin separation system is characterized by comprising a resin separation column, a circulating water tank and a circulating water pump; the top of the column body of the resin separation column is provided with a water inlet A, the water inlet A is respectively connected with purified water and compressed air water through a water inlet valve A and an air inlet valve A, the purified water and the compressed air are controlled to respectively enter the resin separation column, the water inlet A is also connected with a vacuum pump through a vacuum pumping valve, and air in the resin separation column is pumped; the bottom of the column body of the resin separation column is provided with a water inlet B, the water inlet B is respectively connected with purified water and compressed air through a water inlet valve B and an air inlet valve B, and the purified water and the compressed air are controlled to respectively enter the resin separation column; the top and the bottom in the column body are provided with water distribution devices; and an anion resin outlet, a cation resin outlet and a flushing discharge port are arranged on the side surface of the column body of the resin separation column, the flushing discharge port is connected with a circulating water tank, the circulating water tank is connected with a water inlet B, and a circulating water pump for providing power for circulating backwashing is arranged between the circulating water tank and the water inlet B.
2. the desalination mixed bed resin separation system of claim 1, wherein the water distribution device is a perforated plate water cap type water distribution device.
3. The resin separation system for desalination mixed bed according to claim 2, wherein the perforated plate water cap type water distribution device comprises a perforated plate having a flat plate structure and a water cap provided on the perforated plate.
4. The resin separation system of claim 1, wherein a drain outlet is provided at the bottom of the circulation water tank, and a drain outlet valve is provided at the drain outlet.
5. The desalination mixed bed resin separation system of claim 1, wherein a scrubbing inlet valve is further provided between the water inlet B and the water inlet valve B for controlling purified water or compressed air to enter the resin separation column.
6. The desalination mixed bed resin separation system of claim 1, wherein a flush discharge valve is provided between the flush discharge and the recycle tank; a water outlet valve of the circulating water tank is arranged between the circulating water tank and the circulating water pump; and a circulating inlet valve is arranged between the circulating water pump and the water inlet B.
7. The desalination mixed bed resin separation system of claim 1, wherein the anion resin outlet is provided with an anion resin outlet valve; and a cationic resin outlet valve is arranged at the cationic resin outlet.
8. The desalination mixed bed resin separation system of claim 1, wherein the top of the column body of the resin separation column is further provided with a pressure gauge.
9. The desalination mixed bed resin separation system according to any one of claims 1 to 8, wherein the resin separation column is made of organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920253073.XU CN209778384U (en) | 2019-02-27 | 2019-02-27 | Desalination mixed bed resin separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920253073.XU CN209778384U (en) | 2019-02-27 | 2019-02-27 | Desalination mixed bed resin separation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209778384U true CN209778384U (en) | 2019-12-13 |
Family
ID=68795891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920253073.XU Expired - Fee Related CN209778384U (en) | 2019-02-27 | 2019-02-27 | Desalination mixed bed resin separation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209778384U (en) |
-
2019
- 2019-02-27 CN CN201920253073.XU patent/CN209778384U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |