CN207061933U - A kind of condensate polishing treatment negative and positive divide bed system - Google Patents
A kind of condensate polishing treatment negative and positive divide bed system Download PDFInfo
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- CN207061933U CN207061933U CN201720775263.9U CN201720775263U CN207061933U CN 207061933 U CN207061933 U CN 207061933U CN 201720775263 U CN201720775263 U CN 201720775263U CN 207061933 U CN207061933 U CN 207061933U
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Abstract
The utility model discloses a kind of condensate polishing treatment negative and positive to divide bed system, including the interconnected condensate polishing treatment cation bed system and condensate polishing treatment anion bed system being connected with precision processing water inlet system；Condensate polishing treatment cation bed system and condensate polishing treatment anion bed system include the bypass duct C and cation bed or anion bed of parallel communication, and the bottom pipe D of the resin catcher of its bottom and connection resin catcher, next stage condensate polishing treatment is communicated to after bottom pipe D is in parallel with bypass duct C and divides bed system or polisher water system, condensate polishing treatment cation bed system bottom pipeline D directly connects condensate polishing treatment anion bed system, condensate polishing treatment anion bed system bottom pipeline D is communicated with recirculation conduit E, recirculation conduit E is communicated to condensate polishing treatment sun and divided at the water inlet main pipe of bed system.The system simplifies original system, and installation is simple, small investment, and exploitativeness is strong.
Description
Technical field
The utility model belongs to thermal power plant's Condensate Polishing System for Air-Cooled Units condensate clean-up plant, particularly one kind
Condensate polishing treatment negative and positive divide bed system.
Background technology
With the development of production and the progress of science and technology, thermal power generation unit develops to high parameter, Large Copacity.Together
When, the contradiction of the development of fired power generating unit and water resource shortage.Direct Air-cooled Unit is existed with its remarkable water-saving performance
Northern area is increasingly favored by each electricity power enterprise.Condensate of Direct Air-cooling Unit have salt content low and stably, temperature
The outstanding features such as high, dissolved oxygen content is high, carbon dioxide content height, corrosion product is more, iron-holder is big, therefore《Power plant chemistry
Design specification》Provided in (DL/T 5068-2014), the condensed water precision processing system of Direct Air-cooled Unit preferably selects negative and positive to divide bed
Technique.
Negative and positive divide bed precision processing system, and because its amount of resin is big, resin thickness, precision processing system effluent quality is relatively good, adds
Upper Direct Air-cooled Unit is not present the problem of Steam Condenser Leak, and the salt content in system is fewer than wet type cooling unit.Therefore, negative and positive divide bed
Precision processing system unit water quality is generally excellent, feedwater hydrogen conductivity be typically maintained in below 0.10uS/cm, be unit safety,
Efficiently, economical operation provides sufficient guarantee.
Current operating condensate polishing treatment negative and positive divide bed system from it is standby move on to fortune when, sodium occurs in system water outlet
The of short duration rise of ion, sulfate ion, chlorion, the anomaly being then gradually restored to again in standard value.Periodically occur
Such anomaly, the Steam-water Quality of whole unit can be further influenceed, cause Unit Steam Water quality qualification rate to decline, seriously
Influence safety, the economical operation of unit.
Condensate polishing treatment negative and positive divide bed to turn to be both needed to carry out recycling flushing among running status from stand-by state.Currently set
Meter is wash cycles mode, can formally be put into operation after wash cycles to effluent quality reach requirement, this design
Purpose be to save a large amount of rinse waters.Current domestic electrical designing institute and accurate process equipment producer devise to negative and positive bed
Independent recirculating system.
Precision processing negative and positive divide bed system cation bed, anion bed to be designed with each recycling flushing line before improvement, and it is intended that
Initial operation stage rinses the regenerated liquid of removing cation bed, anion bed residual using rinse-system is recycled respectively.Recycling, which is rinsed, terminates control
Making point is respectively：Cation bed water outlet Na+≤ 1ug/L, anion bed water outlet conductivity CC≤0.15uS/cm, SiO2≤10ug/L.But if
Meter installation recycling detergent line be respectively by cation bed outlet return to cation bed import, by anion bed outlet return to anion bed import (see
Fig. 1).When cation bed, which recycles, rinses, the regeneration of hydrochloric acid liquid of positive resin extract sulfate radical and residual can not be removed in itself by cation bed
Go, partial impurities are also possible to bypass into therrmodynamic system by anion bed.Equally, when anion bed recycling is rinsed, remained in negative resin
Sodium hydroxide regenerated liquid can not be removed in itself by negative resin.Therefore, even if carrying out recycling flushing when cation bed, anion bed put into operation
It can not play a part of effectively removing foreign ion, system water outlet occurs that sodium ion, sulfate ion, chlorion are of short duration
Rise, the anomaly being then gradually restored to again in standard value.Anomaly as periodically occurring, can further influence
The Steam-water Quality of whole unit, causes Unit Steam Water quality qualification rate to decline, has a strong impact on safety, the economical operation of unit.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned deficiency of the prior art, there is provided one kind condenses
Crystal handles negative and positive and divides bed system, and the negative and positive of the system divide bed system to cancel cation bed recirculating system, the outlet of anion bed recirculation pump
Pipeline tandem is to cation bed import main pipe；Start anion bed recycling rinse-system, the sodium ion that anion bed leaks is removed by cation bed, and
Anionic impurity is then removed by anion bed itself.The system simplifies original system, and installation is simple, small investment, and exploitativeness is strong.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
According to one embodiment provided by the utility model, the utility model provides a kind of condensate polishing treatment negative and positive point
Bed system, including the condensate polishing treatment cation bed system and condensate polishing treatment anion bed system being connected with precision processing water inlet system；
Condensate polishing treatment cation bed system and condensate polishing treatment the anion bed system includes the bypass duct C and cation bed of parallel communication
Or anion bed, and connection is in the resin catcher of cation bed or anion bed bottom and the bottom pipe D of connection resin catcher, lower tube
Next stage condensate polishing treatment is communicated to after road D is in parallel with bypass duct C and divides bed system or polisher water system, condensate fine
Processing cation bed system bottom pipeline D directly connects condensate polishing treatment anion bed system, condensate polishing treatment anion bed system bottom pipe
Road D is communicated with recirculation conduit E, and recirculation conduit E is communicated at condensate polishing treatment cation bed system water inlet main pipe.
Preferably, the condensate polishing treatment cation bed system includes cation bed A and cation bed B, cation bed A and cation bed B water inlet pipes
Road is provided with cation bed water inlet hand-operated valve and cation bed water inlet pneumatic operated valve；In cation bed A and cation bed B cation bed resin catcher lower bottom part
Pipeline D is provided with cation bed water outlet pneumatic operated valve and cation bed water outlet hand-operated valve.
Preferably, the condensate polishing treatment anion bed system includes anion bed A and anion bed B, anion bed A and anion bed B water inlet pipes
Road is provided with anion bed water inlet hand-operated valve and anion bed water inlet pneumatic operated valve；In anion bed A and anion bed B anion bed resin catcher lower bottom part
Pipeline D is provided with anion bed water outlet pneumatic operated valve and anion bed water outlet hand-operated valve.
Preferably, divide on the bypass duct C of condensate polishing treatment cation bed system and condensate polishing treatment anion bed system
She You not cation bed bypass valve and anion bed bypass valve.
Preferably, cancel the cation bed recirculation pump (10) and cation bed recycle valve (9) of condensate polishing treatment cation bed system,
Anion bed recycle valve (19) and anion bed recirculation pump are provided with only on the recirculation conduit E of condensate polishing treatment anion bed system
(20)。
Preferably, the recirculation conduit E interface of condensate polishing treatment cation bed water inlet main pipe is communicated to close to cation bed A (4),
And away from cation bed bypass duct C by-pass tee.
The characteristics of the utility model, is：
Traditional condensate polishing treatment negative and positive are divided bed system recycling rinse during occur sodium ion, sulfate ion,
The of short duration rise of chlorion, the anomaly being then gradually restored to again in standard value.It was found that existing condensate polishing treatment negative and positive point
Design drawback be present in bed recirculating system.The utility model patent proposes that a kind of modified condensate polishing treatment negative and positive divide bed system
System, can effectively handle the problem, at the same time have the following advantages that：
(1) modified condensate polishing treatment negative and positive divide bed system to install simple, small investment, feasible, only to original system
System carries out simple transformation and can be achieved.
(2) modified condensate polishing treatment negative and positive divide bed system not need to increase any valve, are only optimized in original system
Installation, control program, interlock protection logic to original system can realize further optimization, improve the safety of system
Property, automaticity are higher.
(3) modified condensate polishing treatment negative and positive divide bed system mode of operation more simple than before, further reduce fortune
The operation of administrative staff, improve the security of system.
(4) modified condensate polishing treatment negative and positive divide bed system to be more favorable for improving unit water and steam quality qualification rate, more sharp
In safety in production.
(5) modified condensate polishing treatment negative and positive divide bed system to increase any equipment, and exploitativeness is extremely strong.
Brief description of the drawings
Fig. 1 is that condensate polishing treatment negative and positive divide bed system before improving；
Fig. 2 is that the utility model condensate polishing treatment negative and positive divide bed system.
In figure：1- cation bed bypass valves；2- cation beds water inlet hand-operated valve I；3- cation beds water inlet pneumatic operated valve；4- cation beds A；5- cation beds B；
6- cation bed resin catchers；7- cation bed water outlet pneumatic operated valves；8- cation bed water outlet hand-operated valves；9- cation beds recycle valve (Fig. 1)；10- sun
Bed recirculation pump；11- anion bed bypass valves；12- anion beds water inlet hand-operated valve；13- anion beds water inlet pneumatic operated valve；14- anion beds A；15- anion beds
B；16- anion bed resin catchers；17- anion bed water outlet pneumatic operated valves；18- anion bed water outlet hand-operated valves；19- anion bed recycle valves；20- is cloudy
Bed recirculation pump.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 2 a kind of condensate polishing treatment negative and positive divide bed system, including it is connected with precision processing water inlet system mutual
The two-stage condensate polishing treatment negative and positive of connection divide bed system, and condensate polishing treatment negative and positive divide bed system to include interconnected condensation
Crystal handles cation bed system and condensate polishing treatment anion bed system；Wherein, condensate polishing treatment sun divides bed system to include sun
Bed A4 and cation bed B5, and connection is in the resin catcher 6 of cation bed A4 and cation bed B5 bottoms and the bottom of connection resin catcher 6
Next stage condensate polishing treatment the moon is communicated to after pipeline D, bottom pipe D are in parallel with bypass duct C and divides bed system or condensate fine
Processing system main water outlet pipe.The system does not redesign cation bed recirculation pump and corresponding pipeline and valve, while precision processing is cloudy
The recirculation pipe pipeline joint of bed system is changed at precision processing cation bed system water inlet main pipe from precision processing anion bed system water inlet main pipe.
Wherein, condensate polishing treatment the moon divides bypass duct C, anion bed A14 and the anion bed that bed system includes connection parallel with one another
B15, and connection is in the anion bed resin catcher 16 and connection anion bed resin catcher 16 of anion bed A14 and anion bed B15 bottoms
Bottom pipe D, wherein, condensate polishing treatment cation bed system cation bed A4 is directly connected at condensate fine with cation bed B5 bottom pipes D
Anion bed system is managed, condensate polishing treatment the moon divides bed system anion bed A14 and anion bed B15 bottom pipes D to be communicated with recirculation pipe jointly
Road E, recirculation conduit E are communicated to condensate polishing treatment sun and divided at the water inlet main pipe of bed system.
Divide in condensate polishing treatment sun and cation bed bypass valve 1 is provided with bed system bypass duct C, sun is provided with inlet pipeline
Bed water inlet hand-operated valve 2 and cation bed water inlet pneumatic operated valve 3；Positive bed effluent gas is provided with the lower bottom part pipeline D of cation bed resin catcher 6
Dynamic valve 7 and cation bed water outlet hand-operated valve 8.
Divide in condensate polishing treatment the moon and anion bed bypass valve 11 is provided with bed system bypass duct C；Inlet pipeline is provided with the moon
Bed water inlet hand-operated valve 12 and anion bed water inlet pneumatic operated valve 13；Anion bed water outlet is provided with the lower bottom part pipeline D of anion bed capture resin 16
Pneumatic operated valve 17 and anion bed water outlet hand-operated valve 18.
Cancel the cation bed recirculation pump 10 and cation bed recycle valve 9 of condensate polishing treatment cation bed system, only in condensate fine
The recirculation conduit E of processing anion bed system is provided with anion bed recycle valve 19 and anion bed recirculation pump 20.
Anion bed recirculation pump and cation bed recirculation pump are provided separately by original system, and recycling is only capable of playing the work of solidification bed body
With can not be the acid (or alkali) of residual is cleaned inside resin after regeneration.Necessary cleaning down is clean after resin regeneration, to prevent residual
Stay in the acid in resin (or alkali) and bring all equipment in machine furnace system into and damage.The cation bed self-circulation system installed at present is that do not have
Be necessary (because of " cross pollution " without resin, regenerated liquid, sodium content is also very low in 5% hydrochloric acid, and KNa, H=1.5, institute
Na when being put into operation with cation bed+Leakage rate it is very low), and anion bed recycling rinse-system design with install be then irrational.Knot
Negative and positive divide the running situation of bed precision processing system and design improper the problem of causing to carry out rational modification before being fated, as shown in Figure 2.
The difference that condensate polishing treatment negative and positive after improvement divide bed system maximum with original system is：Former condensate polishing treatment
Negative and positive divide bed system to divide negative and positive bed each to design a set of recirculating system, see Fig. 1；Negative and positive after improvement divide bed system to cancel sun
Bed recirculating system, mainly includes cation bed recirculation pump, valve, pipeline, remains anion bed recirculation pump, see Fig. 2；Former condensate
Precision processing negative and positive divide the recirculation pump outlet conduit tandem of bed system anion bed to see Fig. 1 to anion bed import main pipe；After improvement after improvement
Negative and positive divide the recirculation pump outlet conduit tandem of bed system anion bed to see Fig. 2 to cation bed import main pipe.
Condensed water precision processing system after improvement is as shown in Figure 2.For cation bed, recycling can not be designed and rinsed, but cation bed
The follow-up anion bed of initial operation stage necessarily be in running status, and can not open anion bed bypass, ensure cation bed water outlet all by anion bed,
Make cation bed leakage impurity remove via follow-up anion bed to remove.For anion bed, recycling flushing interface should be changed to return from anion bed outlet
Cation bed water inlet main pipe is back to, interface, and will be away from cation bed by-pass tee close proximity to cation bed.During the anion bed that puts into operation, start anion bed again
Circle irrigation system, cation bed, anion bed can not bypass, and the sodium ion that anion bed leaks is removed by cation bed, and anionic impurity is then
Removed by anion bed itself.
This kind of condensate polishing treatment negative and positive divide bed system only to be optimized accordingly in original system, compared to original system only
Connection is optimized to section of tubing, simplifies original system, installation is simple, small investment, feasible.
By taking Fig. 2 as an example, cation bed A's mode of operation will fail, cation bed B stand-by states：
1) by standby cross-docking row, now, anion bed bypass must shut off cation bed B, ensure that anion bed is in running status；
2) after cation bed B water outlets are qualified, cation bed A operations are exited；
By taking Fig. 2 as an example, anion bed A's mode of operation will fail, anion bed B stand-by states：
1) anion bed B is rinsed by standby turn of recycling, and now, cation bed bypass must shut off, after improved, anion bed recirculation pump
Water outlet imports cation bed entrance, without entering back into anion bed entrance, so can guarantee that sodium ion can be by operation during recycling
Cation bed it is removed, system before does not possess the function then, cause recycling when leak sodium ion；
2) after anion bed B recycling water outlet is qualified, stops recycling, anion bed B commencements of commercial operation, exit anion bed A operations.
The utility model is not limited to above-described embodiment, on the basis of technical scheme disclosed in the utility model, this
The technical staff in field is according to disclosed technology contents, it is not necessary to which performing creative labour can is special to some of which technology
Sign makes some and replaces and deform, and these are replaced and deformed in the scope of protection of the utility model.
Claims (6)
1. a kind of condensate polishing treatment negative and positive divide bed system, including the interconnected condensate being connected with precision processing water inlet system
Precision processing cation bed system and condensate polishing treatment anion bed system；The condensate polishing treatment cation bed system and condensate polishing treatment are cloudy
Bed system includes the bypass duct C and cation bed or anion bed of parallel communication, and the resin connected in cation bed or anion bed bottom is caught
Catch device and connect the bottom pipe D of resin catcher, next stage condensate is communicated to after bottom pipe D is in parallel with bypass duct C
Precision processing divides bed system or polisher water system, it is characterised in that：Condensate polishing treatment cation bed system bottom pipeline D directly connects
Logical condensate polishing treatment anion bed system, condensate polishing treatment anion bed system bottom pipeline D are communicated with recirculation conduit E, recycle
Pipeline E is communicated at condensate polishing treatment cation bed system water inlet main pipe.
2. a kind of condensate polishing treatment negative and positive according to claim 1 divide bed system, it is characterised in that：The condensate fine
Processing cation bed system includes cation bed A (4) and cation bed B (5), and cation bed A (4) and cation bed B (5) inlet pipeline enter sailor provided with cation bed
Dynamic valve (2) and cation bed water inlet pneumatic operated valve (3)；In cation bed A (4) and cation bed B (5) cation bed resin catcher (6) lower bottom part pipe
Road D is provided with cation bed water outlet pneumatic operated valve (7) and cation bed water outlet hand-operated valve (8).
3. a kind of condensate polishing treatment negative and positive according to claim 1 divide bed system, it is characterised in that：The condensate fine
Processing anion bed system includes anion bed A (14) and anion bed B (15), and anion bed A (14) and anion bed B (15) inlet pipeline enter provided with anion bed
Water hand-operated valve (12) and anion bed water inlet pneumatic operated valve (13)；Under anion bed A (14) and anion bed B (15) anion bed resin catcher (16)
Square bottom pipe D is provided with anion bed water outlet pneumatic operated valve (17) and anion bed water outlet hand-operated valve (18).
4. a kind of condensate polishing treatment negative and positive according to claim 1 divide bed system, it is characterised in that：At condensate fine
Cation bed bypass valve (1) and anion bed bypass are respectively equipped with the bypass duct C of reason cation bed system and condensate polishing treatment anion bed system
Valve (11).
5. a kind of condensate polishing treatment negative and positive according to claim 1 divide bed system, it is characterised in that：Cancel condensate fine
The cation bed recirculation pump (10) and cation bed recycle valve (9) of cation bed system are handled, only in condensate polishing treatment anion bed system again
Circulating line E is provided with anion bed recycle valve (19) and anion bed recirculation pump (20).
6. a kind of condensate polishing treatment negative and positive according to claim 1 divide bed system, it is characterised in that：It is communicated to condensate
The recirculation conduit E interface of precision processing cation bed water inlet main pipe is close to cation bed A (4), and remote cation bed bypass duct C bypass three
It is logical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720775263.9U CN207061933U (en) | 2017-06-29 | 2017-06-29 | A kind of condensate polishing treatment negative and positive divide bed system |
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| CN201720775263.9U CN207061933U (en) | 2017-06-29 | 2017-06-29 | A kind of condensate polishing treatment negative and positive divide bed system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732219A (en) * | 2020-03-31 | 2020-10-02 | 江苏核电有限公司 | Control method for bypass multi-mode operation of condensate polishing system |
| CN112705275A (en) * | 2020-12-21 | 2021-04-27 | 华能陇东能源有限责任公司 | Single-set precision processing regeneration system shared by multiple supercritical units |
-
2017
- 2017-06-29 CN CN201720775263.9U patent/CN207061933U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732219A (en) * | 2020-03-31 | 2020-10-02 | 江苏核电有限公司 | Control method for bypass multi-mode operation of condensate polishing system |
| CN111732219B (en) * | 2020-03-31 | 2021-11-09 | 江苏核电有限公司 | Control method for bypass multi-mode operation of condensate polishing system |
| CN112705275A (en) * | 2020-12-21 | 2021-04-27 | 华能陇东能源有限责任公司 | Single-set precision processing regeneration system shared by multiple supercritical units |
| CN112705275B (en) * | 2020-12-21 | 2023-09-05 | 华能陇东能源有限责任公司 | Single set of fine treatment regeneration system shared by multiple supercritical units |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180726 Address after: 710065 No. 1 building, No. 12, Qin Tang, No. 187, science and technology four road, hi tech Zone, Xi'an, Shaanxi Patentee after: North China Electric Power Research Institute Co., Ltd. Xi'an branch Address before: 710065 No. 1 building, No. 12, Qin Tang, No. 187, science and technology four road, hi tech Zone, Xi'an, Shaanxi Patentee before: North China Electrical Power Research Institute (Xi'an) Co., Ltd. |