CN202729926U - System for treating recycled water of industrial park into make-up water for boiler of power plant - Google Patents
System for treating recycled water of industrial park into make-up water for boiler of power plant Download PDFInfo
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- CN202729926U CN202729926U CN 201220405269 CN201220405269U CN202729926U CN 202729926 U CN202729926 U CN 202729926U CN 201220405269 CN201220405269 CN 201220405269 CN 201220405269 U CN201220405269 U CN 201220405269U CN 202729926 U CN202729926 U CN 202729926U
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Abstract
The utility model relates to feed water treatment, and specifically relates to a system for treating recycled water of an industrial park into make-up water for a boiler of a power plant. A main object of the utility model is to solve the problems that in the prior art, the treatment of recycled water requires high operation cost and large floor area, and reverse osmosis membranes are easy to be blocked. The system comprises a grid flocculation inclined-tube sedimentation pool, a high-efficient fiber filtering device, an ultrafiltration unit, a two-level reverse osmosis membrane unit, a mixed bed unit and a chemical addition system; wherein the grid flocculation inclined-tube sedimentation pool is sequentially connected with the high-efficient fiber filtering device, the ultrafiltration unit, the two-level reverse osmosis membrane unit and the mixed bed unit; a water inlet of the grid flocculation inclined-tube sedimentation pool is used as a water inlet of the recycled water of the industrial park; and the water output from the mixed bed unit is supplied as the make-up water for the boiler of the power plant.
Description
Technical field
The utility model relates to a kind of to water treatment, and especially relating to a kind of is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park.
Background technology
Day by day in short supply along with surface water resources, and surface water pollution is increasingly serious, the development of industrial park more and more is subjected to the restriction of water resources, has become the effective way that solves the shortage of water problem with water in the industrial park as the water source of boiler of power plant supplementary feed.Not only can provide stable source of water to power plant with water treatment in the industrial park for the boiler of power plant supplementary feed, can effectively reduce the discharging of pollutent simultaneously, have widely development prospect.But the pollutents such as the organism in the industrial park in the water, suspended substance, saltiness, ammonia nitrogen are higher, and needing after treatment could be as boiler feedwater.
Reverse osmosis pre-treatment method (publication number: CN102285736A) when Chinese patent discloses a kind of middle water and is back to power plant, water coagulation clarification during it mainly adopts, become that hole filtering pool filters, strong positive type receives that ion-exchanger is softening, two chambers weak acid, after strongly-acid cation exchanger is softening and pH adjusts, water outlet is intake as reverse osmosis units.There is the technical process complex process in the method, and floor space is large, and the regenerated acid and alkali consumption is large, the problem that working cost is higher.Chinese patent also discloses a kind for the treatment of system (Granted publication number: CN201785288U) that bad V class surface water is treated to Drinking Water, after it mainly adopted BAF, high speed settling pond, ultrafiltration and disinfecting tank to process, water outlet was as tap water.This treatment system is mainly for surface water, and water outlet is as tap water after processing.
The utility model content
It is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park that the utility model provides a kind of, and it mainly is to solve the existing centering water treatment of prior art to exist working cost high, and floor space is large, and reverse osmosis membrane is the stifled technical problem that waits easily.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Of the present utility model is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, comprise grid flocculation tube settler, high-efficiency fiber filter, ultra filtration unit, double-stage reverse osmosis film unit, mixed bed unit and medicine system, described grid flocculation tube settler, high-efficiency fiber filter, ultra filtration unit, double-stage reverse osmosis film unit, mixed bed unit connect successively by pipeline.
Former water is promoted to the grid flocculation tube settler by pump, the mixing of grid flocculation tube settler collection, flocculation, precipitation, mud concentrate in the processing structures of one, by adding flocculation agent, coagulant aids and sterilant, can effectively remove suspended substance, colourity, ammonia nitrogen, phosphorus and partial organic substances, effluent quality is good.Flocculation zone adopts grid reaction, and the settling region adopts tube settling, and shore pipe is established in the bottom, pond, adopts electrically operated valve control spoil disposal.
Be connected to high-efficiency fiber filter through the outlet of grid flocculation tube settler by pipeline and pump, high-efficiency fiber filter has characteristics: filtering accuracy is high, clearance to suspended substance in the water can reach more than 95%, and the impurity such as larger molecular organics, virus, bacterium, colloid, iron are had certain removal effect; Filtration velocity is fast, is generally 40m/h, reaches as high as 60m/h, is more than 3 times of normal sands filter; Pollutant holding capability is large, is generally 15～35kg/m3, is more than 4 times of normal sands filter; The backwash water consumption rate is low, and the back flushing water loss is less than 1～2% of cycle drainage amount.The raising of cycle water production rate, ton water running expense also reduces thereupon; Floor space is little: produce the identical water yield, floor space is below 1/3 of normal sands filter.
The ultra-filtration membrane unit of above-mentioned treatment system adopts external pressure type hollow fiber membrane component, and membrane pore size is 0.03-0.045 μ m; Membrane flux is 40-120 L/m
225 ℃ of hbar (selected according to flow condition), water outlet SDI value is less than 3.This ultra-filtration membrane unit major advantage is selected the suitable membrane aperture, and anti-adsorption fouling ability is good, is easy to clean.
The membrane element useful area of the reverse osmosis units of above-mentioned treatment system is 33.9 square metres/; Design average flux 19.5L/m2.h.This reverse osmosis units principal feature according to the characteristic of effluent quality and the former water of ultra-filtration membrane unit 3, is selected pollution-resistant membrane, reduces the matting number of times, and ratio of desalinization is relatively stable.
Mixed bed unit in the above-mentioned treatment system adopts yin, yang Ar ion mixing interchanger, can further remove saltiness, makes specific conductivity less than 0.2mS/cm,, silicon-dioxide satisfies the requirement to the boiler feedwater feedwater quality into power plant less than 20mg/L.Mixed bed has that water outlet is good, water outlet pH value approaches neutrally, and stable effluent quality, short period of time operational conditions change (such as influent quality or component, operation flow velocity etc.) to the little advantage of mixed-bed effluent quality impact.
Grid flocculation tube settler and high-efficiency fiber filter are tentatively removed water organism, suspended substance and partial organic substances in the industrial park, have guaranteed the influent quality of subsequent disposal unit.
High-efficiency fiber filter is as filtering unit, has the filtering accuracy height, floor space is little, filtering velocity is fast, the backwash water consumption rate is low, the reliable advantage of stable effluent quality.
The ultra-filtration membrane unit guarantees the effluent quality organic content, and bacterium, virus etc. is had removal effect, satisfies into the requirement of double-stage reverse osmosis film unit, and this system can adopt modular design, and processing cost is low, and efficient is high, realizes automatization control.
The double-stage reverse osmosis film unit guarantees effluent quality, effectively removes saltiness, and water outlet is as the water inlet of mixed bed unit, and this system can adopt modular design, and processing efficiency is high, realizes automatization control.
The mixed bed unit guarantees that effluent quality satisfies power plant to the requirement of boiler feedwater water quality, further removes saltiness, and this unit has long advantage of regeneration period.
As preferably, described grid flocculation tube settler adopts the grid reaction pond, and its settling region adopts tube settling, and shore pipe is established in the settling tank bottom, adopts electrically operated valve control spoil disposal.
As preferably, it is filtration medium that described high-efficiency fiber filter adopts the comet type fibrous packing, and filtering velocity is 39-52m/h, and filter backwash adopts electrically operated valve control backwash, comprises air purge, washing and air water associating backwash.
As preferably, described ultra filtration unit adopts external pressure type hollow fiber membrane component, and membrane pore size is 0.03-0.045 μ m; Membrane flux is 40-120 L/m
225 ℃ of hbar.
As preferably, described reverse osmosis units adopts pollution-resistant membrane, and the membrane element useful area is 33.9 square metres/, average flux 19.5L/m2.h.
As preferably, described mixed bed arranges the acid-alkali regeneration device on the unit.
As preferably, on the molten medicine-chest of described medicine system dosing pipe, dosing pump are set.
Therefore, the utility model is by combining materialization, embrane method and ion exchange method, so that the working cost of centering water treatment is lower, floor space is less, and reverse osmosis membrane is difficult for stopping up, and has satisfied the water quality requirement of boiler of power plant supplementary feed, and is simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Component, position and numbering among the figure: grid flocculation tube settler 1, high-efficiency fiber filter 2, ultra filtration unit 3, double-stage reverse osmosis film unit 4, mixed bed unit 5, medicine system 6.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: this example be the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, such as Fig. 1, comprise grid flocculation tube settler 1, high-efficiency fiber filter 2, ultra filtration unit 3, double-stage reverse osmosis film unit 4, mixed bed unit 5, medicine system 6.The grid flocculation tube settler adopts the grid reaction pond, and its settling region adopts tube settling, and shore pipe is established in the settling tank bottom, adopts electrically operated valve control spoil disposal.It is filtration medium that high-efficiency fiber filter adopts the comet type fibrous packing, and filtering velocity is 39-52m/h, and filter backwash adopts electrically operated valve control backwash, comprises air purge, washing and air water associating backwash.Ultra filtration unit adopts external pressure type hollow fiber membrane component, and membrane pore size is 0.03-0.045 μ m; Membrane flux is 25 ℃ of 40-120 L/m2hbar.Reverse osmosis units adopts pollution-resistant membrane, and the membrane element useful area is 33.9 square metres/, average flux 19.5L/m2.h.The acid-alkali regeneration device is set on the mixed bed unit.On the molten medicine-chest of medicine system dosing pipe, dosing pump are set.
Be the treatment process of boiler of power plant supplementary feed with water treatment in the industrial park, the steps include:
A. former water is risen to grid flocculation tube settler 1 by pump, former water female pipe of intaking adds flocculation agent, coagulant aids, sterilant, former water is processed, remove partial suspended thing, colourity, ammonia nitrogen, phosphorus and partial organic substances, flocculation agent adopts 10% solution, coagulant aids to adopt 0.1-0.3% solution, sterilant to adopt 10% solution, and flocculation agent is that polymerize aluminum chloride, coagulant aids are that polyacrylamide, sterilant are clorox;
B. water outlet is transported to high-efficiency fiber filter 2 by pump and pipeline, by the abundant filtration of Comet-type fiber filter material, further removes the pollutents such as suspended substance, organism, and delivery turbidity alleviates the load of subsequent processing device less than 3NTU;
C. water outlet promotes through pump and is transported to by ultra-filtration membrane unit 3, makes ultra-filtration membrane unit 3 produce water SDI less than 3, and ultra-filtration membrane unit female pipe of intaking adds sterilant, removes microorganism mushroom in the water outlet, and sterilant adopts 10% solution, and sterilant is clorox;
D. after water outlet was processed by double-stage reverse osmosis film unit 4, water outlet conductivity was less than 10mS/cm.Regulate chemical feeding quantity and concentration according to the water yield, first-stage reverse osmosis female pipe of intaking adds reductive agent and Scale inhibitors, to prolong the practical life of membrane element; Two-pass reverse osmosis female pipe of intaking adds sodium hydroxide, make the requirement of satisfying reverse osmosis membrane into water pH value, Scale inhibitors adopts 10% solution, reductive agent to adopt 10% solution, reverse osmosis to adopt 10% solution with alkali, the Scale inhibitors name is called 11 times of concentrated solutions, reductive agent is sodium bisulfite, and alkali adopts industrial sodium hydroxide;
E. the water outlet of double-stage reverse osmosis film unit 4 processing is after mixed bed unit 5 ion exchange treatment, further desalination, to satisfy the water quality requirement of boiler of power plant supplementary feed, mixed bed regeneration adopts 31% solution, mixed bed regeneration to adopt 30% solution with alkali with acid, and acid adopts industrial hydrochloric acid, alkali to adopt industrial sodium hydroxide.
The above only is specific embodiment of the utility model, but constitutional features of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the claim of the present utility model.
Claims (7)
1. one kind is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, comprise grid flocculation tube settler (1), high-efficiency fiber filter (2), ultra filtration unit (3), double-stage reverse osmosis film unit (4), mixed bed unit (5), medicine system (6), described grid flocculation tube settler, high-efficiency fiber filter, ultra filtration unit, double-stage reverse osmosis film unit, mixed bed unit connect successively by pipeline.
2. according to claim 1 is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, it is characterized in that described grid flocculation tube settler (1) adopts the grid reaction pond, its settling region adopts tube settling, shore pipe is established in the settling tank bottom, adopts electrically operated valve control spoil disposal.
3. according to claim 1 is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, it is characterized in that it is filtration medium that described high-efficiency fiber filter (2) adopts the comet type fibrous packing, filtering velocity is 39-52m/h, filter backwash adopts electrically operated valve control backwash, comprises air purge, washing and air water associating backwash.
4. according to claim 1 is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, it is characterized in that described ultra filtration unit (3) adopts external pressure type hollow fiber membrane component, and membrane pore size is 0.03-0.045 μ m; Membrane flux is 40-120 L/m
225 ℃ of hbar.
5. according to claim 1 is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, it is characterized in that described reverse osmosis units (4) adopts pollution-resistant membrane, the membrane element useful area is 33.9 square metres/, average flux 19.5L/m2.h.
6. according to claim 1 is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, it is characterized in that on the described mixed bed unit acid-alkali regeneration device being set.
7. according to claim 1 is the treatment system of boiler of power plant supplementary feed with water treatment in the industrial park, it is characterized in that on the molten medicine-chest of described medicine system (6) dosing pipe, dosing pump being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405269 CN202729926U (en) | 2012-08-16 | 2012-08-16 | System for treating recycled water of industrial park into make-up water for boiler of power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405269 CN202729926U (en) | 2012-08-16 | 2012-08-16 | System for treating recycled water of industrial park into make-up water for boiler of power plant |
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| CN202729926U true CN202729926U (en) | 2013-02-13 |
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| CN 201220405269 Expired - Lifetime CN202729926U (en) | 2012-08-16 | 2012-08-16 | System for treating recycled water of industrial park into make-up water for boiler of power plant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838227A (en) * | 2012-08-16 | 2012-12-26 | 浙江东发环保工程有限公司 | System and method for treating industrial park recycled water to form power plant boiler supplemental water |
| CN103739116A (en) * | 2013-12-31 | 2014-04-23 | 广东汇众环境科技股份有限公司 | Membrane-technology-based integrated water purification process |
| CN109293145A (en) * | 2018-10-22 | 2019-02-01 | 德蓝水技术股份有限公司 | The method that textile waste is back to Thermal Power Generation Industry |
| CN113603281A (en) * | 2021-07-15 | 2021-11-05 | 华能荆门热电有限责任公司 | Operation method for fine control water treatment of power plant boiler feedwater system |
-
2012
- 2012-08-16 CN CN 201220405269 patent/CN202729926U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838227A (en) * | 2012-08-16 | 2012-12-26 | 浙江东发环保工程有限公司 | System and method for treating industrial park recycled water to form power plant boiler supplemental water |
| CN103739116A (en) * | 2013-12-31 | 2014-04-23 | 广东汇众环境科技股份有限公司 | Membrane-technology-based integrated water purification process |
| CN109293145A (en) * | 2018-10-22 | 2019-02-01 | 德蓝水技术股份有限公司 | The method that textile waste is back to Thermal Power Generation Industry |
| CN113603281A (en) * | 2021-07-15 | 2021-11-05 | 华能荆门热电有限责任公司 | Operation method for fine control water treatment of power plant boiler feedwater system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200925 Address after: No.99, Huaxing Road, Xihu District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Tiandi Environmental Protection Technology Co.,Ltd. Address before: 311203, 19 floor, building 1, Pacific Plaza, No. 451 Jincheng Road, Xiaoshan District, Zhejiang, Hangzhou Patentee before: ZHEJIANG DONGFA ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
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| CX01 | Expiry of patent term |