CN115259280A - Mixed ion exchange resin separation and transportation method - Google Patents
Mixed ion exchange resin separation and transportation method Download PDFInfo
- Publication number
- CN115259280A CN115259280A CN202210808547.9A CN202210808547A CN115259280A CN 115259280 A CN115259280 A CN 115259280A CN 202210808547 A CN202210808547 A CN 202210808547A CN 115259280 A CN115259280 A CN 115259280A
- Authority
- CN
- China
- Prior art keywords
- tower
- pipeline
- resin
- negative
- separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 42
- 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 title claims abstract description 22
- 239000003456 ion exchange resin Substances 0.000 title claims abstract description 22
- 229920003303 ion-exchange polymer Polymers 0.000 title claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 204
- 229920005989 resin Polymers 0.000 claims abstract description 204
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 230000008929 regeneration Effects 0.000 claims abstract description 13
- 238000011069 regeneration method Methods 0.000 claims abstract description 13
- 238000005498 polishing Methods 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 17
- 239000004519 grease Substances 0.000 claims description 13
- 150000001450 anions Chemical class 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 3
- 150000001768 cations Chemical class 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000000338 in vitro Methods 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/30—Conveying materials in bulk through pipes or tubes by liquid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/36—Arrangements of containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention belongs to the technical field of debugging of a chemical water system of a nuclear power plant, and particularly relates to a mixed ion exchange resin separation and transportation method, which is used for regeneration equipment of a condensate polishing system consisting of a separation tower (1), a negative tower (2), a positive tower (3) and a resin mixed storage tower (4), and comprises the following steps: step S1, filling the negative tower (2) with water; s2, filling the positive tower (3) with water; s3, after the failure resin in the separation tower (1) is separated into a negative resin layer and a positive resin layer, keeping the negative resin positioned at the upper layer in the separation tower (1) in a lifted state; s4, communicating the separation tower (1) with the negative tower (2), and transporting the negative resin in the separation tower (1) to the negative tower (2) through gravity flow; s5, after the negative resin is conveyed, disconnecting the separation tower (1) from the negative tower (2); and S6, communicating the separation tower (1) and the positive tower (3), and transporting the positive resin in the separation tower (1) to the positive tower (3).
Description
Technical Field
The invention belongs to the technical field of debugging of a chemical water system of a nuclear power plant, and particularly relates to a separation and transportation method of mixed ion exchange resin.
Background
In a chemical water system of a nuclear power plant, a condensed water fine treatment system is used for separating and transporting mixed ion exchange resin; the core equipment for purifying the water quality of the condensate polishing system is a mixed bed, and the core of mixed bed debugging lies in the separation and transportation of the failed resin in the mixed bed (the failed resin refers to the mixed ion exchange resin after failure). After the mixed bed is failed, the failed resin is introduced into a separation tower 1 to carry out in-vitro separation, the layering work of the negative resin and the positive resin is completed in the separation tower 1, then the layered negative resin and the layered positive resin are respectively transported to a negative tower 2 (a negative resin regeneration tower) and a positive tower 3 (a positive resin regeneration tower), and the regeneration work of the resin is completed in the negative tower 2 and the positive tower 3.
The arrangement of the mixed bed in-vitro regeneration equipment of the condensate polishing system is shown as attached figure 1.
The in-vitro regeneration device comprises a separation tower 1, a negative tower 2, a positive tower 3 and a resin mixing storage tower 4. Spent resin is first introduced from the mixed bed into the self-separating column 1. In the separation column 1 the spent resin is stratified by water backwash, the stratified resin enters the female column 2 through the first outlet valve 14 (female resin outlet valve) and the male resin enters the male column 3 through the second outlet valve 16 (male resin outlet valve).
In the separation column 1, the layered anion resin is at the top and the cation resin is at the bottom. The pipe orifice of the output of the negative resin is about 33cm away from the interface of the negative resin and the positive resin, in the process of leading out the negative resin, the output of the negative resin is faster because the height difference between the separation tower 1 and the negative tower 2 is larger and the pressure in the separation tower 1 is higher than that in the negative tower 2, and the negative resin and the positive resin are mixed, so that part of the positive resin enters the negative tower 2.
The "funnel effect" occurs during the process of transferring the male resin at the bottom of the separation column 1 to the male column 3, during which the transfer speed of the resin near the resin outlet is too high, and the originally flat resin layer inside the separation column 1 is depressed downward in a funnel shape during the resin transfer process. In severe cases, the funnel even breaks through the transition region to cause the negative resin in the transition region to be transmitted into the positive tower 3, thereby damaging the good separation and layering effects of the negative resin and the positive resin and causing the positive resin transmitted into the positive tower 3 to be mixed with more negative resin. In addition, as a part of the anion resin is "wrapped" in the cation exchange column 3, the amount of anion resin in the transition zone is reduced, so that the resin layer in the transition zone becomes thinner, and the possibility of cross contamination of the anion resin and the cation resin is increased in the subsequent separation process of the number of sets.
Disclosure of Invention
The invention aims to provide a method which can solve the problem that resin interface is disordered (disordered) due to the fact that the resin is led out from a separation tower at an excessively high flow speed in a condensation water fine treatment system of a nuclear power plant, and improves the separation and transportation efficiency of mixed ion exchange resin.
In order to achieve the above purpose, the technical scheme adopted by the invention is a mixed ion exchange resin separation and transportation method, which is used for regeneration equipment of a condensate polishing system consisting of a separation tower, an anion tower, an cation tower and a resin mixed storage tower, and comprises the following steps:
step S1, filling the negative tower with water;
s2, filling the positive tower with water;
s3, after the failure resin in the separation tower is separated into two resin layers of negative resin and positive resin, keeping the negative resin positioned at the upper layer in the separation tower in a lifted state;
s4, communicating the separation tower with the negative tower, and transporting the negative resin in the separation tower to the negative tower through gravity flow;
s5, after the negative resin is conveyed, disconnecting the communication between the separation tower and the negative tower;
a step S6 of communicating the separation column and the positive column and transferring the positive resin in the separation column to the positive column;
step S7, after the delivery of the male resin is finished, the communication between the separation tower and the male tower is cut off;
and S8, checking and confirming that the negative resin and the positive resin in the separation tower are transported reversely, and the resin interface is flat.
Further, in the present invention,
the regeneration equipment of the condensate polishing system comprises a first pipeline and a second pipeline, wherein the top end of the first pipeline is connected with a source of the failure resin, and the bottom end of the first pipeline is connected with the second pipeline; the separation column is in communication with the first line, the negative column is downstream of the separation column, the positive column is downstream of the negative column, and the resin mix storage column is downstream of the positive column;
a third pipeline and a fourth pipeline are arranged at the top end of the separation tower, a separation tower exhaust valve is arranged on the third pipeline, and a separation tower upper water inlet valve is arranged on the fourth pipeline; the middle part of the separation tower is communicated with the first pipeline through a fifth pipeline, and a fat inlet valve of the separation tower is arranged on the fifth pipeline; a seventh pipeline and an eighth pipeline are arranged at the bottom end of the separation tower, and the seventh pipeline is connected with the second pipeline; a positive resin output valve is arranged on the seventh pipeline, and a back flush valve is arranged on the eighth pipeline;
a ninth pipeline and a tenth pipeline are arranged at the top end of the negative tower, a negative tower water inlet valve is arranged on the ninth pipeline, and a negative tower exhaust valve is arranged on the tenth pipeline; the middle tower body of the negative tower is communicated with the middle tower body of the separation tower through a sixth pipeline, and a negative resin output valve is arranged on the sixth pipeline; an eleventh pipeline and a twelfth pipeline are arranged at the bottom end of the negative tower, a negative tower drain valve is arranged on the eleventh pipeline, the twelfth pipeline is connected with the second pipeline, and a negative tower output valve is arranged on the twelfth pipeline;
a thirteenth pipeline and a fourteenth pipeline are arranged at the top end of the male tower, a male tower water inlet valve is arranged on the thirteenth pipeline, and a male tower exhaust valve is arranged on the fourteenth pipeline; a fifteenth pipeline and a sixteenth pipeline are arranged at the bottom end of the male tower, a male tower drain valve is arranged on the fifteenth pipeline, the sixteenth pipeline is connected with the second pipeline, and a male tower output valve is arranged on the sixteenth pipeline; the device also comprises a seventeenth pipeline, one end of the seventeenth pipeline is connected with the second pipeline, the other end of the seventeenth pipeline is connected with the upper tower body of the male tower, and a grease inlet valve is arranged on the seventeenth pipeline;
an eighteenth pipeline and a nineteenth pipeline are arranged at the top end of the resin mixing storage tower, a water inlet valve of the storage tower is arranged on the eighteenth pipeline, and an exhaust valve of the storage tower is arranged on the nineteenth pipeline; a twentieth pipeline is arranged at the bottom end of the resin mixing storage tower and connected with the second pipeline, and a storage tower output valve is arranged on the twentieth pipeline; the tail end of the second pipeline is connected with the upper tower body of the resin mixing storage tower;
a resin input main valve is arranged on the first pipeline and is positioned near the top end of the first pipeline; and the second pipeline is provided with a resin output main valve and a resin mixing and storing tower grease inlet valve, the resin output main valve is positioned near the top end of the second pipeline, and the resin mixing and storing tower grease inlet valve is positioned near the tail end of the second pipeline.
Further, in the step S1, the negative tower is filled with water by opening the negative tower vent valve and the negative tower inlet valve.
Further, in the step S2, the male tower is filled with water by closing the female tower water inlet valve and the female tower exhaust valve and opening the male tower water inlet valve and the male tower exhaust valve; and after the male tower is full of water, closing the male tower water inlet valve and the male tower exhaust valve.
Further, in the step S3, the negative resin in the upper layer in the separation column is maintained in a "lifted" state by opening the back flush valve and the separation column vent valve.
Further, in the step S4, the separation column and the negative column are communicated by opening the negative resin outlet valve and the negative column drain valve, and the negative resin in the separation column is transferred to the negative column by "gravity flow".
Further, in the step S5, the communication between the separation column and the negative column is cut off by closing the negative resin outlet valve and the negative column drain valve.
Further, in step S6, the separation column and the male column are communicated by opening the male resin outlet valve, the grease inlet valve, and the male column drain valve and keeping the backwash valve open, and the male resin in the separation column is transferred to the male column.
Further, in the step S7, the connection between the separation column and the male column is cut off by closing the male resin outlet valve, the grease inlet valve, and the male column drain valve.
Further, in the step S1 and the step S2, the negative tower and the positive tower are filled with water using demineralized water.
The invention has the beneficial effects that:
1. the problem that the flow velocity of the resin led out from the separation tower 1 is too high can be solved, and the disordered layer site of the resin interface is fundamentally eliminated.
2. In the process of leading out the negative resin, the negative and positive resin interfaces are ensured to be always in a clear state, and the resin interfaces are kept stable.
3. In the process of leading out the positive resin, the negative and positive resin interfaces are ensured to descend slowly and uniformly, and the positive and negative resin interfaces are kept clear all the time; in the negative tower 2, no positive resin exists; in the positive column 3, no negative resin was present.
4. The separation and transportation effect of the mixed ion exchange resin can be obviously improved, the interfaces of the anion resin and the cation resin are clear and have no disorder layer (no mixed layer), the success rate reaches 100 percent, the secondary separation operation is not needed, and the separation and transportation efficiency of the mixed ion exchange resin can be obviously improved.
Drawings
FIG. 1 is a schematic diagram of a condensate polishing system regeneration apparatus according to an embodiment of the present invention;
in the figure: 1-separation column, 2-anion column, 3-cation column, 4-resin mixed storage column, 5-first line, 6-second line, 7-third line, 8-separation column vent valve, 9-fourth line, 10-separation column upper water inlet valve, 11-fifth line, 12-separation column resin inlet valve, 13-sixth line, 14-anion resin outlet valve, 15-seventh line, 16-cation resin outlet valve, 17-eighth line, 18-backwash valve, 19-ninth line, 20-anion column water inlet valve, 21-tenth line, 22-anion column vent valve, 23-eleventh line, 24-anion column drain valve, 25-twelfth line, 26-anion column outlet valve, 27-thirteenth line, 28-cation column water inlet valve, 29-fourteenth line, 30-cation column vent valve, 31-fifteenth line, 32-cation column, 33-sixteenth line, 34-sixteenth line, 35-seventeenth line, 36-eighteenth resin inlet valve, 43-seventeenth line, 42-seventeenth line, 40-total resin inlet valve, 42-ninth line, 40-eighteenth resin inlet valve, 40-total resin storage column drain valve, 25-seventeenth line, 40-eighteenth line, and 40-eighteenth line.
Detailed Description
The invention is further described below with reference to the figures and examples.
The invention provides a mixed ion exchange resin separation and transportation method, which is used for regeneration equipment (shown in figure 1) of a condensate polishing system consisting of a separation tower 1, an anion tower 2, an cation tower 3 and a resin mixed storage tower 4, wherein the regeneration equipment of the condensate polishing system also comprises a first pipeline 5 and a second pipeline 6, the top end of the first pipeline 5 is connected with a source of failure resin, and the bottom end of the first pipeline 5 is connected with the second pipeline 6; the separation tower 1 is communicated with a first pipeline 5, the negative tower 2 is positioned at the downstream of the separation tower 1, the positive tower 3 is positioned at the downstream of the negative tower 2, and the resin mixing storage tower 4 is positioned at the downstream of the positive tower 3;
a third pipeline 7 and a fourth pipeline 9 are arranged at the top end of the separation tower 1, a separation tower exhaust valve 8 is arranged on the third pipeline 7, and a separation tower upper water inlet valve 10 is arranged on the fourth pipeline 9; the middle part of the separation tower 1 is communicated with the first pipeline 5 through a fifth pipeline 11, and a separation tower grease inlet valve 12 is arranged on the fifth pipeline 11; a seventh pipeline 15 and an eighth pipeline 17 are arranged at the bottom end of the separation tower 1, and the seventh pipeline 15 is connected with the second pipeline 6; a positive resin output valve 16 is arranged on the seventh pipeline 15, and a back flush valve 18 is arranged on the eighth pipeline 17;
a ninth pipeline 19 and a tenth pipeline 21 are arranged at the top end of the negative tower 2, a negative tower water inlet valve 20 is arranged on the ninth pipeline 19, and a negative tower exhaust valve 22 is arranged on the tenth pipeline 21; the middle tower body of the negative tower 2 is communicated with the middle tower body of the separation tower 1 through a sixth pipeline 13, and a negative resin output valve 14 is arranged on the sixth pipeline 13; an eleventh pipeline 23 and a twelfth pipeline 25 are arranged at the bottom end of the negative tower 2, a negative tower drain valve 24 is arranged on the eleventh pipeline 23, the twelfth pipeline 25 is connected with the second pipeline 6, and a negative tower output valve 26 is arranged on the twelfth pipeline 25;
a thirteenth pipeline 27 and a fourteenth pipeline 29 are arranged at the top end of the male tower 3, a male tower water inlet valve 28 is arranged on the thirteenth pipeline 27, and a male tower exhaust valve 30 is arranged on the fourteenth pipeline 29; a fifteenth pipeline 31 and a sixteenth pipeline 33 are arranged at the bottom end of the male tower 3, a male tower drain valve 32 is arranged on the fifteenth pipeline 31, the sixteenth pipeline 33 is connected with the second pipeline 6, and a male tower output valve 34 is arranged on the sixteenth pipeline 33; the device also comprises a seventeenth pipeline 35, one end of which is connected with the second pipeline 6, and the other end of which is connected with the upper part of the male tower 3, wherein the seventeenth pipeline 35 is provided with a grease inlet valve 36;
an eighteenth pipeline 37 and a nineteenth pipeline 39 are arranged at the top end of the resin mixing storage tower 4, a storage tower water inlet valve 38 is arranged on the eighteenth pipeline 37, and a storage tower exhaust valve 40 is arranged on the nineteenth pipeline 39; a twentieth pipeline 41 is arranged at the bottom end of the resin mixing storage tower 4, the twentieth pipeline 41 is connected with the second pipeline 6, and a storage tower output valve 42 is arranged on the twentieth pipeline 41; the tail end of the second pipeline 6 is connected with the upper tower body of the resin mixing storage tower 4;
a resin input main valve 43 is arranged on the first pipeline 5, and the resin input main valve 43 is positioned near the top end of the first pipeline 5; the second pipeline 6 is provided with a resin output main valve 44 and a resin mixing storage tower grease inlet valve 45, the resin output main valve 44 is positioned near the top end of the second pipeline 6, and the resin mixing storage tower grease inlet valve 45 is positioned near the tail end of the second pipeline 6.
The mixed ion exchange resin separation and transportation method comprises the following steps:
step S1, filling the negative tower 2 with water;
s2, filling the positive tower 3 with water;
s3, after the failure resin in the separation tower 1 is separated into two resin layers of negative resin and positive resin, keeping the negative resin positioned at the upper layer in the separation tower 1 in a lifted state;
s4, communicating the separation tower 1 with the negative tower 2, and transporting the negative resin in the separation tower 1 to the negative tower 2 by gravity flow;
s5, after the conveying of the negative resin is finished, the communication between the separation tower 1 and the negative tower 2 is cut off;
s6, communicating the separation tower 1 with the positive tower 3, and transferring the positive resin in the separation tower 1 to the positive tower 3;
s7, after the delivery of the cation resin at the bottom of the separation tower 1 is finished, disconnecting the connection between the separation tower 1 and the cation tower 3;
and S8, checking and confirming that the negative resin and the positive resin in the separation tower 1 are transported to the end and the resin interface is flat.
In step S1, the negative column 2 is filled with water by opening the negative column vent valve 22 and the negative column inlet valve 20.
In step S2, the male tower 3 is filled with water by closing the female tower inlet valve 20 and the female tower outlet valve 22 and opening the male tower inlet valve 28 and the male tower outlet valve 30; after the male tower 3 is full of water, the male tower water inlet valve 28 and the male tower exhaust valve 30 are closed.
In step S3, the negative resin in the upper layer in the separation column 1 is maintained in the "lifted" state by opening the backwash valve 18 and the separation column vent valve 8.
In step S4, the separation column 1 and the negative column 2 are communicated by opening the negative resin outlet valve 14 and the negative column drain valve 24, and the negative resin in the separation column 1 is transported to the negative column 2 by "gravity flow". The female resin in the separation column 1 is slowly introduced into the female column 2 by "gravity flow" and the female resin is in a "lifted" state while the male resin layer remains stable. The inclusion of the positive resin in the process of leading the negative resin out is avoided, and the inclusion rate of the positive resin is obviously reduced.
In step S5, the communication of the separation column 1 and the anion column 2 is cut off by closing the anion resin discharge valve 14 and the anion column drain valve 24.
In step S6, the separation column 1 and the male column 3 are communicated by opening the male resin outlet valve 16, the fat inlet valve 36, and the male column drain valve 32 and keeping the backwash valve 18 open, and the male resin in the separation column 1 is transferred to the male column 3. In the step, the anode resin at the bottom of the separation tower 1 is fluidized on site, the anode resin can be uniformly and stably output, and the anode resin at the bottom of the separation tower 1 is transferred to the anode tower 3 through the siphon action of the anode tower 3. The interface of the negative and positive resin can be slowly and uniformly dropped. And negative resin inclusion in the process of leading out the positive resin is avoided, and the inclusion rate of the negative resin is obviously reduced.
In step S7, the communication between the separation column 1 and the male column 3 is cut off by closing the male resin outlet valve 16, the fat inlet valve 36, and the male column drain valve 32.
In step S1 and step S2, the negative tower 2 and the positive tower 3 are filled with water using demineralized water.
The dead resin finishes layered work in the separation tower 1, a gravity flow method is adopted in the process of leading out the negative resin to reduce the pressure difference between the separation tower 1 and the negative tower 2 as much as possible, in the whole process, the liquid level difference between the separation tower 1 and the negative tower 2 is gradually reduced along with the continuous leading-in of the negative resin into the negative tower 2, and the negative resin slowly flows into the negative tower 2. In the whole process of leading out the negative resin, the negative resin interface and the positive resin interface are kept stable without fluctuation and mixed layer.
After the separation tower 1 leads out the negative resin, the positive resin is slowly sucked out from the separation tower 1 by utilizing the 'siphon' principle in the process of leading out the positive resin, and the water is kept entering the bottom of the separation tower 1 in the process of leading out the positive resin, so that the resin at the bottom of the separation tower 1 flows, and the 'funnel effect' is reduced as much as possible.
Before the resin in the separation column 1 is discharged, the inside of the negative column 2 and the inside of the positive column 3 are filled with water without causing pressure build-up.
The resin separation step belongs to a continuous operation step, in the separation tower 1, the step of leading out the negative resin is directly executed after the negative resin and the positive resin are layered, and the step of leading out the positive resin is directly executed after the negative resin is led out.
In the whole process, the back washing valve 18 at the bottom of the separation tower 1 is always in an open state, so that the back washing water continuously enters, and the anion resin layer in the separation tower 1 is in a lifted state.
In the whole process, the resin in the separation column 1 is always below the water level.
The device according to the present invention is not limited to the embodiments described in the specific embodiments, and those skilled in the art can derive other embodiments according to the technical solutions of the present invention, and also belong to the technical innovation scope of the present invention.
Claims (10)
1. A mixed ion exchange resin separation and transportation method is used for regeneration equipment of a condensate polishing system consisting of a separation tower (1), an anion tower (2), an anode tower (3) and a resin mixed storage tower (4), and comprises the following steps:
step S1, filling the negative tower (2) with water;
s2, filling the positive tower (3) with water;
s3, after the failure resin in the separation tower (1) is separated into two resin layers of negative resin and positive resin, keeping the negative resin positioned at the upper layer in the separation tower (1) in a lifted state;
a step S4 of communicating the separation column (1) and the negative column (2) and transporting the negative resin in the separation column (1) to the negative column (2) by gravity flow;
s5, after the negative resin is conveyed, disconnecting the communication between the separation tower (1) and the negative tower (2);
a step S6 of communicating the separation column (1) and the male column (3) and transferring the male resin in the separation column (1) to the male column (3);
s7, after the delivery of the male resin is finished, disconnecting the communication between the separation tower (1) and the male tower (3);
and S8, checking and confirming that the negative resin and the positive resin in the separation tower (1) are transported reversely, and the resin interface is flat.
2. The method of claim 1, wherein the mixed ion exchange resin separation and transportation method comprises the following steps:
the regeneration equipment of the condensate polishing system comprises a first pipeline (5) and a second pipeline (6), wherein the top end of the first pipeline (5) is connected with a source of the failure resin, and the bottom end of the first pipeline (5) is connected with the second pipeline (6); the separation column (1) is in communication with the first line (5), the negative column (2) is located downstream of the separation column (1), the positive column (3) is located downstream of the negative column (2), and the resin mixture storage column (4) is located downstream of the positive column (3);
a third pipeline (7) and a fourth pipeline (9) are arranged at the top end of the separation tower (1), a separation tower exhaust valve (8) is arranged on the third pipeline (7), and a separation tower upper water inlet valve (10) is arranged on the fourth pipeline (9); the middle part of the separation tower (1) is communicated with the first pipeline (5) through a fifth pipeline (11), and a separation tower fat inlet valve (12) is arranged on the fifth pipeline (11); a seventh pipeline (15) and an eighth pipeline (17) are arranged at the bottom end of the separation tower (1), and the seventh pipeline (15) is connected with the second pipeline (6); a positive resin output valve (16) is arranged on the seventh pipeline (15), and a back flush valve (18) is arranged on the eighth pipeline (17);
a ninth pipeline (19) and a tenth pipeline (21) are arranged at the top end of the negative tower (2), a negative tower water inlet valve (20) is arranged on the ninth pipeline (19), and a negative tower exhaust valve (22) is arranged on the tenth pipeline (21); the middle tower body of the negative tower (2) is communicated with the middle tower body of the separation tower (1) through a sixth pipeline (13), and a negative resin output valve (14) is arranged on the sixth pipeline (13); an eleventh pipeline (23) and a twelfth pipeline (25) are arranged at the bottom end of the negative tower (2), a negative tower drain valve (24) is arranged on the eleventh pipeline (23), the twelfth pipeline (25) is connected with the second pipeline (6), and a negative tower output valve (26) is arranged on the twelfth pipeline (25);
a thirteenth pipeline (27) and a fourteenth pipeline (29) are arranged at the top end of the male tower (3), a male tower water inlet valve (28) is arranged on the thirteenth pipeline (27), and a male tower exhaust valve (30) is arranged on the fourteenth pipeline (29); a fifteenth pipeline (31) and a sixteenth pipeline (33) are arranged at the bottom end of the male tower (3), a male tower drain valve (32) is arranged on the fifteenth pipeline (31), the sixteenth pipeline (33) is connected with the second pipeline (6), and a male tower output valve (34) is arranged on the sixteenth pipeline (33); the device also comprises a seventeenth pipeline (35) with one end connected with the second pipeline (6) and the other end connected with the upper tower body of the male tower (3), and a grease inlet valve (36) is arranged on the seventeenth pipeline (35);
an eighteenth pipeline (37) and a nineteenth pipeline (39) are arranged at the top end of the resin mixing storage tower (4), a storage tower water inlet valve (38) is arranged on the eighteenth pipeline (37), and a storage tower exhaust valve (40) is arranged on the nineteenth pipeline (39); a twentieth pipeline (41) is arranged at the bottom end of the resin mixing storage tower (4), the twentieth pipeline (41) is connected with the second pipeline (6), and a storage tower output valve (42) is arranged on the twentieth pipeline (41); the tail end of the second pipeline (6) is connected with the upper tower body of the resin mixing storage tower (4);
a resin input main valve (43) is arranged on the first pipeline (5), and the resin input main valve (43) is positioned near the top end of the first pipeline (5); and a resin output main valve (44) and a resin mixing storage tower grease inlet valve (45) are arranged on the second pipeline (6), the resin output main valve (44) is positioned near the top end of the second pipeline (6), and the resin mixing storage tower grease inlet valve (45) is positioned near the tail end of the second pipeline (6).
3. The method of claim 2, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in the step S1, the negative tower (2) is filled with water by opening the negative tower vent valve (22) and the negative tower inlet valve (20).
4. The method of claim 2, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in the step S2, the male tower (3) is filled with water by closing the female tower water inlet valve (20) and the female tower exhaust valve (22) and opening the male tower water inlet valve (28) and the male tower exhaust valve (30); and after the male tower (3) is full of water, closing the male tower water inlet valve (28) and the male tower exhaust valve (30).
5. The method of claim 2, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in the step S3, the negative resin in the upper layer of the separation column (1) is maintained in a state of being "lifted" by opening the back flush valve (18) and the separation column vent valve (8).
6. The method of claim 2, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in the step S4, the separation tower (1) and the negative tower (2) are communicated by opening the negative resin output valve (14) and the negative tower drain valve (24), and the negative resin in the separation tower (1) is transported to the negative tower (2) by 'gravity flow'.
7. The method of claim 2, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in the step S5, the communication between the separation column (1) and the negative column (2) is cut off by closing the negative resin output valve (14) and the negative column drain valve (24).
8. The method of claim 2, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in step S6, the separation column (1) and the male column (3) are communicated by opening the male resin outlet valve (16), the grease inlet valve (36), and the male column drain valve (32) and keeping the backwash valve (18) open, and the male resin in the separation column (1) is transferred to the male column (3).
9. The method of claim 2, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in the step S7, the communication between the separation column (1) and the male column (3) is cut off by closing the male resin outlet valve (16), the fat inlet valve (36), and the male column drain valve (32).
10. The method of claim 1, wherein the mixed ion exchange resin separation and transportation method comprises the following steps: in the step S1 and the step S2, the negative column (2) and the positive column (3) are filled with water using demineralized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210808547.9A CN115259280B (en) | 2022-07-11 | 2022-07-11 | Mixed ion exchange resin separation and transportation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210808547.9A CN115259280B (en) | 2022-07-11 | 2022-07-11 | Mixed ion exchange resin separation and transportation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115259280A true CN115259280A (en) | 2022-11-01 |
| CN115259280B CN115259280B (en) | 2024-08-13 |
Family
ID=83765913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210808547.9A Active CN115259280B (en) | 2022-07-11 | 2022-07-11 | Mixed ion exchange resin separation and transportation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115259280B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201644105U (en) * | 2010-03-25 | 2010-11-24 | 海盐力源电力设备有限公司 | Four tower type mixed bed cation-anion resin regeneration combined device |
| CN201680152U (en) * | 2010-04-01 | 2010-12-22 | 海盐力源电力设备有限公司 | Double pipelines for conveying resin |
| CN201871381U (en) * | 2010-11-18 | 2011-06-22 | 无锡市德林环保设备有限公司 | Resin separation tower |
| CN202898080U (en) * | 2012-09-11 | 2013-04-24 | 苏州东方水处理有限责任公司 | Movable condensed water fine treatment resin separation regenerating device |
| CN206814443U (en) * | 2017-05-15 | 2017-12-29 | 河钢股份有限公司邯郸分公司 | A kind of mixed-bed resin in-vitro separation and regenerating unit |
| CN108525711A (en) * | 2018-05-21 | 2018-09-14 | 兆德（南通）电子科技有限公司 | It is a kind of polishing resin external regeneration equipment in pipeline arranging structure |
| CN112427052A (en) * | 2020-11-05 | 2021-03-02 | 华能山东发电有限公司 | System and method for improving resin separation degree of in-vitro regeneration process by medium-pressure extraction method |
-
2022
- 2022-07-11 CN CN202210808547.9A patent/CN115259280B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201644105U (en) * | 2010-03-25 | 2010-11-24 | 海盐力源电力设备有限公司 | Four tower type mixed bed cation-anion resin regeneration combined device |
| CN201680152U (en) * | 2010-04-01 | 2010-12-22 | 海盐力源电力设备有限公司 | Double pipelines for conveying resin |
| CN201871381U (en) * | 2010-11-18 | 2011-06-22 | 无锡市德林环保设备有限公司 | Resin separation tower |
| CN202898080U (en) * | 2012-09-11 | 2013-04-24 | 苏州东方水处理有限责任公司 | Movable condensed water fine treatment resin separation regenerating device |
| CN206814443U (en) * | 2017-05-15 | 2017-12-29 | 河钢股份有限公司邯郸分公司 | A kind of mixed-bed resin in-vitro separation and regenerating unit |
| CN108525711A (en) * | 2018-05-21 | 2018-09-14 | 兆德（南通）电子科技有限公司 | It is a kind of polishing resin external regeneration equipment in pipeline arranging structure |
| CN112427052A (en) * | 2020-11-05 | 2021-03-02 | 华能山东发电有限公司 | System and method for improving resin separation degree of in-vitro regeneration process by medium-pressure extraction method |
Non-Patent Citations (4)
| Title |
|---|
| 张建鹏等: "滦河电厂凝结水精处理系统树脂分离塔 阳树脂传脂问题探讨", 热力发电, pages 204 - 212 * |
| 李旻然等: "电厂凝结水精处理树脂分离系统调试研究", 现代商贸工业, pages 289 - 290 * |
| 郭振宇: "精处理树脂分离操作的要点分析", 产业与科技论坛, 31 December 2018 (2018-12-31), pages 79 - 80 * |
| 阎志国等: "高塔分离技术用于凝结水精处理中的流量控制", 电力建筑, pages 20 - 23 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115259280B (en) | 2024-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112427052A (en) | System and method for improving resin separation degree of in-vitro regeneration process by medium-pressure extraction method | |
| CN215102143U (en) | Condensate fine treatment mixed bed failure resin in-vitro separation and regeneration device | |
| CN115259280A (en) | Mixed ion exchange resin separation and transportation method | |
| CN206538296U (en) | Ammonia-containing water processing unit | |
| CN104971522B (en) | Fluid bubble removal apparatus in semiconductor treatment system and bubble removal method thereof | |
| CN204958359U (en) | It uses liquid filling machine to contain water -soluble fertile production of algin acid | |
| CN201676695U (en) | Cold water mixing ion exchange resin separation and regeneration device in generator | |
| CN210935572U (en) | Slurry circulating device | |
| CN206868771U (en) | One kind is used for methanol-to-olefins Wastewater Stripping Tower off-line cleaning device | |
| CN208145991U (en) | Power plant's mixed-bed resin regenerates hierarchical system | |
| US4663051A (en) | Regeneration of mixed bed demineralizers | |
| CN217120155U (en) | Proportioning device is used in production of corrosion-resistant concentrate of high stability | |
| CN207279279U (en) | Vacuum aerosolization produces alloyed powder inert gas circulation protection system | |
| CN218320917U (en) | Ion exchange resin transporting device | |
| CN215048887U (en) | Condensate polishing resin regeneration system | |
| CN205169423U (en) | Acrylic acid storage tank unloading absorption system | |
| CN117489117A (en) | Nuclear power station large-aperture curve prestressed duct vacuum gravity grouting construction method | |
| CN213912462U (en) | Online high-efficient groove device that moves back of subsider | |
| CN217189458U (en) | Hydrogenation device capable of separating catalyst | |
| CN110594586B (en) | Double-tank emptying structure capable of shortening switching time and emptying method thereof | |
| CN214636223U (en) | A explosion-proof loading attachment for azodiisobutyronitrile production | |
| CN213314856U (en) | High pressure alcoholysis feeding device | |
| CN111689470B (en) | Hydrochloric acid recovery system | |
| CN215554331U (en) | Buffering waste discharge device that can be used to instant filling of unstable microballon suspension | |
| CN208995423U (en) | A kind of small-entity polypropylene process units |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |