CN2928227Y - External regeneration separating tower for double middle row concrete bed - Google Patents
External regeneration separating tower for double middle row concrete bed Download PDFInfo
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- CN2928227Y CN2928227Y CNU2006200761164U CN200620076116U CN2928227Y CN 2928227 Y CN2928227 Y CN 2928227Y CN U2006200761164 U CNU2006200761164 U CN U2006200761164U CN 200620076116 U CN200620076116 U CN 200620076116U CN 2928227 Y CN2928227 Y CN 2928227Y
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- resin
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Abstract
The utility model relates to a re-generation column outside of a double rock row concrete bed, which is characterized in that a top rock row and a bottom rock row are removably arranged in the middle of the regeneration column and that a positive and negative resin interface, which is sliced in the regeneration column, is arranged in the middle of the top rock row and the bottom rock row. The same column regeneration of the positive and negative resin of the utility model greatly simplifies the system settings. A regeneration replacement of ammonia and NH<4>HCO<3> in regeneration techniques greatly reduces cross contamination in the course of re-generation of concrete bed resin, thereby, effectively improving the yielding water of the concrete bed.
Description
Technical field:
The utility model relates in the thermal power plant, for because of finish the device that yin and yang resin that ion-exchange lost efficacy is regenerated in the crystal's desalting process that condenses.
Background technology:
The thermal power plant is that the heat energy that coal combustion produces is absorbed by water, forms the steam pushing turbine and rotates, thereby drive the generator rotary electrification.Water recycles in the thermal power plant, and in order to guarantee boiler feedwater water quality, high parameter heavy-duty generator group all is provided with the crystal's demineralization plant that condenses, and promptly coagulates and mixes bed apparatus.
Coagulating mixed bed is the ion-exchanger that carries out the further desalination of condensate water.Coagulate the filler of packing in the mixed bed and still be anion-cation exchange resin, the regeneration of resin medium uses NaOH and HCL usually, and after the yin and yang resin regeneration, positive resin is H
+Type, negative resin are OH
-Type, operation middle-jiao yang, function of the spleen and stomach resin exchanges the cation in the water emits H
+, negative resin exchanges anion in the water and emits OH
-Ion is because H
+And OH
-Ions binding Cheng Shui mixes the bed water outlet near pure water so coagulate under the normal condition, and electrical conductivity is less than 0.1 μ s/cm.
For subcritical above unit, the impurity under the normal condition in the therrmodynamic system steam is mainly metallic corrosion products, and the content of dissolved salts is very low.But also exist external contaminant to enter the possibility of therrmodynamic system, thereby cause the pollution of therrmodynamic system water and steam quality.According to the characteristics of therrmodynamic system, the dissolved salts source mainly contains two each side:
1, the condenser recirculated cooling water bleeds.
2, chemical deionization equipment mainly contains to coagulate and mixes bed, and its reason is that yin and yang resin regeneration cross pollution and end of run control are inappropriate, has spilling of strong acid anion.Coagulate the strong acid anion that mixes bed and spill problem, under the condition of present reclaim equiment, resin layering and regeneration technology, be difficult to avoid.
For the corrosion of the big unit heat power equipment of high parameter, the strong acid anion particularly increase of chloride ion content is a significant threat to the heat power equipment safety and economic operation.
Under the present circumstances, coagulate the leakage chlorine problem ubiquity that mixes bed, under existing technological condition of regeneration, positive resin is to adopt regeneration of hydrochloric acid, and negative resin is to adopt NaOH regeneration, and cross pollution can't thoroughly be avoided in the regenerative process.
The method of taking out is coagulated and is mixed bed reclaim equiment and regeneration technology in generally adopting at present, takes out method in the what is called, promptly refers to lose efficacy and coagulates mixed-bed resin after knockout tower carries out the backwash layering, slightly down hybrid resin is extracted out from knockout tower from two kinds of resin interfaces that are arranged in the knockout tower middle part.The original idea of this method is that part of resin that possible exist yin and yang resin to mix mutually all will be extracted out, avoids the regeneration cross pollution of yin and yang resin.In this regenerative system, be provided with four tank bodies altogether, comprise that knockout tower, negative resin regenerator, the resin of double as Yang Shuzhizaishengta stored tower and mixed fat storage tower.
Mixed fat in mixed-bed resin with fixed attention that lost efficacy and the mixed fat storage tower is admitted in the knockout tower at first to be cleaned, utilize waterpower backwash layering again, the sun negative resin is because there is significant difference in density, in carrying out the waterpower backwash process, natural layering appears in the positive resin that negative resin that density is little and density are big in knockout tower, negative resin is on the upper strata, and positive resin is in lower floor, at negative resin layer and positive resin bed interface place, remain in a part and mix fat; Processing subsequently is by different resin outlets, negative resin is sent into the negative resin regenerator, and regenerate therein; Mixed fat send and mixes fat storage tower; The sun resin is retained in and directly carries out positive resin regeneration in the knockout tower; The yin and yang resin of finishing regeneration all is admitted to resin and stores in the tower, and the yin and yang resin of storing in the tower at resin transfers to after qualified standbyly through mixing, cleaning, and so far the reproduction operation of exhausted resin is all over.
According to surveying and determination, still there is tangible regeneration cross-contamination issue in the yin and yang resin of this system regeneration.Reason mainly is:
1, yin and yang resin separates not thorough;
2, still have the part negative resin not send fully when mixing fat sending, cause positive resin surface layer to have a certain amount of negative resin;
3, the influence of regenerating medium, the negative resin that mainly shows as in the positive resin transfers the chlorine type to after regeneration, transfer the sodium type to after the positive resin regeneration in the negative resin, forms the regeneration cross pollution.The yin and yang resin that in regenerative process, is transferred to chlorine type or sodium type, when coagulate mixing bed operating when penetrating, mix a bed water outlet chlorion, sodium ion obviously increases, and thisly puts chlorine, puts the sodium phenomenon, had a strong impact on and coagulated the safe operation that mixes bed operating effluent quality and heat power equipment.Above-mentioned coagulate to mix the bed operating later stage to put chlorine, put the main cause that the sodium phenomenon produces be the resin regeneration cross-contamination issue, all in various degree existence regeneration cross pollutions in present various reclaim equiments and regeneration technology.
Structure from knockout tower itself, though former this body structure of tower body is comparatively simple, be in different tower bodies, separately to carry out because prior art is the regeneration of yin and yang resin, for regenerative system, the multitower body of difference in functionality has increased the complexity of system.
The utility model content:
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of one side energy simplied system structure is provided, can reducing the duel compartment coagulation mixed beds external regeneration knockout tower that coagulates the cross pollution in the mixed-bed resin regenerative process on the other hand greatly.
The technical scheme that the utility model technical solution problem is adopted is:
The utility model duel compartment coagulation mixed beds external regeneration knockout tower, has vertical tower body, each gas-liquid gateway and resin gateway are set respectively on the diverse location of described knockout tower, comprise the top mouth that is positioned at the knockout tower top, the end mouth that is positioned at the knockout tower bottom, the resin that is positioned at knockout tower sidepiece top enters the mouth, is positioned at the resin outlet of knockout tower bottom.
Design feature of the present utility model is the middle part at described knockout tower, row and middle down row in being provided with at interval, yin and yang resin interface in knockout tower after the layering in last, arrange and down in place, centre position between the row, outlet in being provided with, enter in down mouthful and down middle outlet runs through knockout tower respectively and leads to the outside of knockout tower.
The technological process that utilizes the utility model duel compartment coagulation mixed beds external regeneration knockout tower to implement yin and yang resin regeneration is:
First step regeneration:
A, coagulate to mix the bed exhausted resin and send in the knockout tower from the resin inlet; In knockout tower, feed compressed air and carry out air bump rinse operation; The backwash layering of yin and yang resin is finished in mouth water filling backwash in knockout tower at the bottom of the self-separation tower;
B, NaOH alkali lye are injected by the top mouth of knockout tower, and the HCL acid solution is injected by the end mouth of knockout tower simultaneously, and acid-base waste fluid is discharged in the outlet in down jointly, finish regeneration displacement for the first time; Subsequently, by top mouthful water inlet, and successively respectively in last in outlet, following middle outlet and the end mouth draining just washing, be washed till draining electrical conductivity＜10 μ S/cm;
The regeneration of second step:
A, enter mouth in down certainly and send into regenerated liquid ammoniacal liquor or NH
4HCO
3Solution, described regenerated liquid is the yin and yang resin layer between the row by row in last and down, and regenerative response is for the second time finished in reverse flow from bottom to top, and waste liquid is by discharging in the outlet in last;
B, replace cleaning, less than 5 μ S/cm, finish the regeneration of second step until the washing lotion electrical conductivity of discharging with demineralized water;
Collect:
Yin and yang resin after the second step regeneration displacement is discharged in the resin outlet, and be collected in resin store mix in the tower standby to do.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, coagulating the regeneration that mixes bed inefficacy yin and yang resin is in order to recover the ion-exchange capacity of resin.Make to coagulate and mix bed effluent quality high-quality, should be OH after the negative resin regeneration
-Type, positive resin should be H
+Type, yin and yang resin just can satisfy above-mentioned requirements behind NaOH and regeneration of hydrochloric acid.At present existing coagulating mixed the bed reclaim equiment, coagulates the regeneration that mixes the bed yin and yang resin, regenerates in two equipment respectively, i.e. Yang Shuzhizaishengta and negative resin regenerator.The utility model comprises that with the regeneration of yin and yang resin air bump rinse operation, separation and the acid-alkali regeneration to exhausted resin finished in same equipment, simplified system's formation greatly.
2, concrete enforcement of the present utility model is finished the resin regeneration technique of NaOH alkali lye and HCL acid solution except technology routinely, i.e. after the first step regeneration displacement, increase and be provided with ammoniacal liquor or NH
4HCO
3Yin and yang resin between adverse current is arranged to row in being in and down again carries out the regeneration displacement of second step, cross-contamination issue when having eliminated hydrochloric acid, NaOH regeneration technology preferably and may cause the regeneration of yin and yang resin, effectively reduce the content of chlorion in high parameter, the big capacity unit thermodynamic system steam, significant for the safe operation that guarantees heat power equipment.
3, the utility model helps realizing coagulating the ammonification operation that mixes bed, reduces and coagulates the mixed-bed resin regeneration times, reduces the pollution of regeneration waste discharge to environment, has saved and has coagulated the bed operating expense of mixing.
Description of drawings:
Accompanying drawing constitutes the resin regeneration system schematic diagram for the utility model duel compartment coagulation mixed beds external regeneration knockout tower.
Number in the figure: enter in the outlet on 1 top mouth, 2 end mouths, 3 resins inlet, 4 resin outlets, 5 knockout towers, 6,7 times mouthful, in 8 times on the outlet, 9 in row, 11 resins storage tower, 12 source of the gas pipes, 13 sweet-water tanks, 14 regenerate water pumps, 15 water source tube, 16 alkali liquid tanks, 17 alkali lye injectors, 18 acid solution jars, 19 acid solution injectors, 20 waste liquid pools, 21 ammoniacal liquor or NH among the row, 10 times
4HCO
3NaOH solution tank NaOH.
Below the utility model is described in further detail by the specific embodiment:
Referring to accompanying drawing, in the present embodiment, duel compartment coagulation mixed beds external regeneration knockout tower 5 has vertical tower body, each gas-liquid gateway and resin gateway are set respectively on the diverse location of knockout tower 5, comprise the top mouth 1 that is positioned at the knockout tower top, be positioned at the end mouth 2 of knockout tower bottom, be positioned at knockout tower sidepiece top resin inlet 3, be positioned at the resin outlet 4 of knockout tower bottom.
Shown in the accompanying drawing, middle part at knockout tower 5, row 9 and middle down row 10 during the interval is provided with, yin and yang resin interface in knockout tower 5 after the layering in last, arrange 9 and down in place, centre position between the row 10, outlet 6 in being provided with, enter in down mouthfuls 7 and down middle outlet 8 run through knockout tower 5 respectively and lead to the outside of knockout tower 5.
In concrete the enforcement, in going up row 9 with down in row 10 setting should make between the two at a distance of about 300mm, for the proportioning of yin and yang resin resin, require yin and yang resin to be arranged in row 9 and locate with the centre position of arranging 10 down at the interface of knockout tower inside.
Shown in the accompanying drawing, system's setting comprises knockout tower 5 and resin storage tower 11.
The regeneration technology of regeneration knockout tower is to be undertaken by following flow process:
1, coagulating mixed bed exhausted resin sends in the knockout tower 5 from resin inlet 3;
In knockout tower 5, feed compressed air by source of the gas pipe 12 and carry out air bump rinse operation;
Through regeneration water pump 14, and through water source tube 15, the backwash layering of yin and yang resin is finished in mouth 2 water filling backwash in knockout tower 5 at the bottom of the self-separation tower by sweet-water tank 13;
2, NaOH alkali lye is injected at the top of knockout tower 5 mouth 1 through alkali lye injector 17 by alkali liquid tank 16, the HCL acid solution is injected by the end mouth 2 of acid solution jar 18 through acid solution injector 19 self-separation towers 5 simultaneously, acid-base waste fluid is common discharges in waste liquid pool 20 from down middle outlet 8, finishes first step regeneration displacement;
Subsequently, by top mouth 1 water inlet of knockout tower 5, and successively respectively in last outlet 6, descend in middle outlet 8 and the end mouth 2 draining just washing, be washed till draining electrical conductivity＜10 μ S/cm;
3, second step regeneration: by ammoniacal liquor or NH
4HCO
3NaOH solution tank NaOH 21 is the liquid pipe after alkali lye injector 17 is annotated, and enters mouth 7 in descending certainly and inject ammoniacal liquor or NH in knockout tower 5
4HCO
3Solution, regenerated liquid is the yin and yang resin layer between the row 10 by row 9 in last and down, and regenerative response is for the second time finished in reverse flow from bottom to top, and waste liquid is by discharging in the outlet 6 in last;
4, just wash with demineralized water, less than 5 μ S/cm, finish the regeneration displacement of second step until the washing lotion electrical conductivity of discharging.
5, the yin and yang resin after the second step regeneration displacement is discharged in resin outlet 4, and being collected in resin, to store in the tower 11 mixing standby to do.
Above-mentioned the 1st step is regenerated as the present conventional regeneration technology of using, and the regeneration of the 2nd step is to be provided with for eliminating because of first step regeneration forms cross pollution, and principle is as follows:
Lost efficacy to coagulate mixed-bed resin after the backwash layering, negative resin is last, and positive resin is down, and the interface of yin and yang resin is in up and down between two intermediate drain installations, and existing negative resin also has positive resin between two intermediate drain installations.Obviously, all negative resins all change OH in the regenerator
-Type, most positive resins transfer H to
+Type, alkali lye can make the positive resin of this part change the sodium type into when being arranged in the part sun resin on following row top, in order to eliminate this part sodium type sun resin, in the present embodiment, adopt ammoniacal liquor or NH for this part sodium type sun resin to coagulating the influence that mixes the bed operating effluent quality
4HCO
3Solution carries out post processing, makes it to transfer to the ammonia type.Through the regeneration of ammonia or ammonium salt, be arranged in the sodium type sun resin of arranging top down and will be transferred to the ammonium type, the waste liquid of discharge is NaOH or NaHCO
3Waste liquid when adopting WITH AMMONIA TREATMENT is NaOH, when regeneration liquid waste or ammonia regeneration liquid continue up, by row bottom OH in last
-During the negative resin layer of type, will can not have a negative impact to negative resin regeneration.When adopting NH
4HCO
3During processing, because waste liquid is NaHCO
3Or Na
2CO
3, this waste liquid will make OH during by OH-type negative resin layer
-The type negative resin transfers HCO to
3 -Type or CO
3 2-Type also is a kind of cross pollution though this phenomenon occurs,, think a spot of HCO by analysis of experiments
3 -Perhaps CO
3 =The negative resin of type exists, and will not have obviously influence to coagulating mixed bed operating effluent quality, does not exist to concentrate to discharge HCO
3 -Perhaps CO
3 =Problem, even in other words a spot of HCO is arranged
3 -Or CO
3 =Discharge, because carbonic acid is weak acid, its sodium-salt aqueous solution is alkalescence, can not cause the corrosion of boiler plant.
In the present embodiment, for the regeneration of yin and yang resin, no longer need branch to be located in two equipment and carry out, mixing fat layer resin also no longer needs extraction to be transferred in the other equipment, and the system that therefore simplified greatly is simple; System's formation only is reduced to by four original towers and stores the Double-Tower Structure that tower constitutes by resin regeneration knockout tower and resin.Especially for new power plant construction, factory building, equipment investment will significantly reduce.
The first step is regenerated as common process in the present embodiment, and regenerated acid, concentration of lye are respectively 4～5%, and the regenerated liquid flow velocity is 4～8m/h.The regeneration of second step, ammonia and carbonic hydroammonium concentration are 1～2%, the regenerated liquid flow velocity is 4～8m/h.
Claims (1)
1, duel compartment coagulation mixed beds external regeneration knockout tower, has vertical tower body, each gas-liquid gateway and resin gateway are set respectively on the diverse location of described knockout tower (5), comprise the top mouth (1) that is positioned at the knockout tower top, be positioned at the end mouth (2) of knockout tower bottom, be positioned at the resin inlet (3) of knockout tower sidepiece top, be positioned at the resin outlet (4) of knockout tower bottom, it is characterized in that middle part in described knockout tower (5), row (9) and following middle row (10) in being provided with at interval, yin and yang resin interface in knockout tower (5) after the layering is arranged in the place, centre position between row (9) and the following row (10), outlet (6) in being provided with, enter the outside that mouthful (7) and down middle outlet (8) run through knockout tower (5) respectively and lead to knockout tower (5) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200761164U CN2928227Y (en) | 2006-07-29 | 2006-07-29 | External regeneration separating tower for double middle row concrete bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200761164U CN2928227Y (en) | 2006-07-29 | 2006-07-29 | External regeneration separating tower for double middle row concrete bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2928227Y true CN2928227Y (en) | 2007-08-01 |
Family
ID=38306620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200761164U Expired - Lifetime CN2928227Y (en) | 2006-07-29 | 2006-07-29 | External regeneration separating tower for double middle row concrete bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2928227Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427209C (en) * | 2006-07-29 | 2008-10-22 | 安徽省电力科学研究院 | Duel compartment coagulation mixed beds external regeneration knockout tower and regeneration art work |
| CN102489346A (en) * | 2011-11-16 | 2012-06-13 | 兰州陇能电力科技有限公司 | Method for separation and regeneration of anion and cation resin in exhausted mixed bed |
| CN105502576A (en) * | 2015-10-15 | 2016-04-20 | 芬欧汇川(中国)有限公司 | Chemical water ion exchanger |
| CN111905445A (en) * | 2020-08-21 | 2020-11-10 | 四川省宜宾惠美线业有限责任公司 | Method for separating mixed lipid of anion resin and cation resin |
-
2006
- 2006-07-29 CN CNU2006200761164U patent/CN2928227Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427209C (en) * | 2006-07-29 | 2008-10-22 | 安徽省电力科学研究院 | Duel compartment coagulation mixed beds external regeneration knockout tower and regeneration art work |
| CN102489346A (en) * | 2011-11-16 | 2012-06-13 | 兰州陇能电力科技有限公司 | Method for separation and regeneration of anion and cation resin in exhausted mixed bed |
| CN102489346B (en) * | 2011-11-16 | 2013-11-27 | 兰州陇能电力科技有限公司 | Method for separation and regeneration of anion and cation resin in exhausted mixed bed |
| CN105502576A (en) * | 2015-10-15 | 2016-04-20 | 芬欧汇川(中国)有限公司 | Chemical water ion exchanger |
| CN105502576B (en) * | 2015-10-15 | 2018-06-08 | 芬欧汇川(中国)有限公司 | Change water ion exchanger |
| CN111905445A (en) * | 2020-08-21 | 2020-11-10 | 四川省宜宾惠美线业有限责任公司 | Method for separating mixed lipid of anion resin and cation resin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060729 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |