CN207016618U - A kind of thermal power plant's sewage zero-discharge processing unit - Google Patents
A kind of thermal power plant's sewage zero-discharge processing unit Download PDFInfo
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- CN207016618U CN207016618U CN201720733989.6U CN201720733989U CN207016618U CN 207016618 U CN207016618 U CN 207016618U CN 201720733989 U CN201720733989 U CN 201720733989U CN 207016618 U CN207016618 U CN 207016618U
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- reverse osmosis
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Abstract
A kind of thermal power plant's sewage zero-discharge processing unit, main regulation collecting-tank, pretreatment pool, first-stage reverse osmosis device, one-level concentrated water case, nanofiltration device, second level reverse osmosis apparatus, two level concentrated water case, triple effect evaporator and the intermediate water tank for including being sequentially connected, the present apparatus effectively can carry out targetedly circulating filtration to thermal power plant's sewage, realize that the discharge outward transport of inorganic salts solid recycles, fresh water recycles.
Description
Technical field
It the utility model is related to a kind of thermal power plant's sewage treatment area, more particularly to a kind of processing of thermal power plant's sewage zero-discharge
Device.
Background technology
Being equipped with of domestic thermal power plant wetting system at present, and it is all counter-infiltration or ion-exchange process to change wetting system, reverse osmosis
Saturating technique can produce the concentrated water of about 25% (inflow) in the process of running；Ion-exchange process can produce acid when regeneration
Alkali waste water, the desulphurization denitration equipment in addition, thermal power plant has all started, can also produce a small amount of desulfurization wastewater.
Certainly the thermal power plant for also having many is equipped with sewage disposal system, but these sewage disposal systems have following lack
Fall into：Firstth, most of thermal power plants are all directly to discharge concentrated water caused by counter-infiltration, given up from soda acid caused by the existing life of exchange
Water directly discharges after neutralizing, and desulfurization wastewater is also to discharge after agent-feeding treatment；Secondth, the processing of counter-infiltration is fairly simple, to sewage
The no specific aim of processing；3rd, effluent can not recycle, and will be a preciousness if by reuse after above-mentioned wastewater treatment
Resource.
Utility model content
The technical problems to be solved in the utility model is overcome the deficiencies in the prior art, there is provided it is a kind of it is reasonable in design,
Targetedly circulating filtration is carried out to thermal power plant's sewage, realizes that the discharge outward transport of inorganic salts solid recycles, fresh water recycles
A kind of thermal power plant's sewage zero-discharge processing unit.
To realize that the utility model provides following technical scheme：A kind of thermal power plant's sewage zero-discharge processing unit, main bag
Include the regulation collecting-tank being sequentially connected, pretreatment pool, first-stage reverse osmosis device, one-level concentrated water case, nanofiltration device, two-pass reverse osmosis
Device, two level concentrated water case, triple effect evaporator and intermediate water tank；The regulation collecting-tank is provided with grug feeding jar；The pretreatment pool
Interior to be provided with back purge system, pretreatment pool bottom is provided with slag notch, and the slag notch is connected with regulation collecting-tank；The one-level is anti-
Permeability apparatus is two-part system, and first paragraph and second segment are that some membrane modules are in parallel, are string between first paragraph and second segment
Connection, the liquid outlet of first-stage reverse osmosis device are connected with one-level concentrated water case, and purified liquor outlet is connected with intermediate water tank；The two level reverse osmosis
Disc tube reverse osmosis (dt-ro) component is provided with saturating device, the purified liquor outlet of second level reverse osmosis apparatus is connected with intermediate water tank；The triple effect
The condensation-water drain of evaporator is connected with intermediate water tank；The liquid outlet connection three-level reverse osmosis unit of the intermediate water tank；It is described
Three-level reverse osmosis unit is some membrane modules single hop system in parallel, and liquid outlet and the first-stage reverse osmosis of three-level reverse osmosis unit fill
Connection is put, purified liquor outlet is connected with reuse water tank.
Preferably, the membrane module number ratio of the first-stage reverse osmosis device first paragraph and second segment is 2:1.
Preferably, it is additionally provided with elevator pump between the regulation collecting-tank and pretreatment pool.
Preferably, the one-level concentrated water case and two level concentrated water box top are respectively provided with spraying and cleaning apparatus, bottom is set out
Cinder notch, the slag notch is connected with regulation collecting-tank, and one-level concentrated water case and two level concentrated water chamber interior wall are coated with antiseptic and rustproof painting
Layer.
Usefulness of the present utility model：The present apparatus sets first-stage reverse osmosis, nanofiltration, two-pass reverse osmosis and three-level reverse osmosis
Thoroughly, 4 filterings, and first-stage reverse osmosis uses two-part system, and membrane module number ratio is 2:1 such a mode can be in initial filter
Higher water rate is obtained, then nanofiltration is carried out for concentrated water and disc tube reverse osmosis (dt-ro) filters, nanofiltration is mainly desalination, and dish pipe
Formula counter-infiltration is primarily directed to organic matter and other ammonia nitrogen compounds, the filtering for materials such as high COD and heavy metals, for
The fresh water filtered out is unified to carry out three-level osmosis filtration again, and now three-level osmosis filtration single hop system, is mainly controlled
Water rate processed, because the concentrated water of three-level osmosis filtration will again return to first-stage reverse osmosis, if concentrated water is excessively thick, then water
Qualitative change difference flow velocity is slow, is easily caused dirt and blocks up, and can influence the circular flow of system, and the present apparatus can be carried out effectively to thermal power plant's sewage
Circulating filtration, realize that inorganic salts solid is discharged, fresh water recycles.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is first-stage reverse osmosis apparatus structure schematic diagram.
In figure：1 it is regulation collecting-tank, 1.1 be grug feeding jar, 2 be pretreatment pool, 3 be first-stage reverse osmosis device, 3.1 is the
One section, 3.2 be second segment, 3.3 be membrane module, 4 be one-level concentrated water case, 5 be nanofiltration device, 6 be second level reverse osmosis apparatus, 7 be
Two level concentrated water case, 8 be triple effect evaporator, 9 be intermediate water tank, 10 be three-level reverse osmosis unit, 11 be reuse water tank, 12 be lifting
Pump, 13 are slag notches.
Embodiment
A kind of thermal power plant's sewage zero-discharge processing unit, the main regulation collecting-tank 1 for including being sequentially connected, pretreatment pool 2,
First-stage reverse osmosis device 3, one-level concentrated water case 4, nanofiltration device 5, second level reverse osmosis apparatus 6, two level concentrated water case 7, triple effect evaporator 8
With intermediate water tank 9；The regulation collecting-tank 1 is provided with grug feeding jar 1.1；Back purge system is provided with the pretreatment pool 2, pre- place
Reason bottom of pond portion is provided with slag notch 13, and the slag notch 13 is connected with regulation collecting-tank 1；The first-stage reverse osmosis device 3 is two sections
Formula system, first paragraph 3.1 and second segment 3.2 are that some membrane modules 3.3 are in parallel, are string between first paragraph 3.1 and second segment 3.2
Connection, the liquid outlet of first-stage reverse osmosis device 3 are connected with one-level concentrated water case 4, and purified liquor outlet is connected with intermediate water tank 9；The two level
Disc tube reverse osmosis (dt-ro) component is provided with reverse osmosis unit 6, the purified liquor outlet of second level reverse osmosis apparatus 6 is connected with intermediate water tank 9；Institute
The condensation-water drain for stating triple effect evaporator 10 is connected with intermediate water tank 9；The liquid outlet connection three-level counter-infiltration of the intermediate water tank 9
Device 10；The three-level reverse osmosis unit 10 is some membrane modules 3.3 single hop system in parallel, and three-level reverse osmosis unit 10 goes out
Liquid mouth is connected with first-stage reverse osmosis device 3, and purified liquor outlet is connected with reuse water tank 11；The first paragraph of first-stage reverse osmosis device 3
3.1 and second segment 3.2 3.3 numbers of membrane module than being 2:1；Lifting is additionally provided between the regulation collecting-tank 1 and pretreatment pool 2
Pump 12；The one-level concentrated water case and two level concentrated water box top are respectively provided with spraying and cleaning apparatus, and bottom sets slag notch 13, it is described go out
Cinder notch 13 is connected with regulation collecting-tank 1, and one-level concentrated water case 4 and the inwall of two level concentrated water case 7 are coated with antiseptic and rustproof coating.
Claims (4)
1. a kind of thermal power plant's sewage zero-discharge processing unit, the main regulation collecting-tank, pretreatment pool, one-level for including being sequentially connected
Reverse osmosis unit, one-level concentrated water case, nanofiltration device, second level reverse osmosis apparatus, two level concentrated water case, triple effect evaporator and middle water
Case；It is characterized in that：The regulation collecting-tank is provided with grug feeding jar；Back purge system is provided with the pretreatment pool, is pre-processed
Bottom of pond portion is provided with slag notch, and the slag notch is connected with regulation collecting-tank；The first-stage reverse osmosis device is two-part system, the
One section is that some membrane modules are in parallel with second segment, goes out liquid between first paragraph and second segment for series connection, first-stage reverse osmosis device
Mouth is connected with one-level concentrated water case, and purified liquor outlet is connected with intermediate water tank；Dish tubular type reverse osmosis is provided with the second level reverse osmosis apparatus
Saturating component, the purified liquor outlet of second level reverse osmosis apparatus are connected with intermediate water tank；The condensation-water drain of the triple effect evaporator is with
Between water tank connect；The liquid outlet connection three-level reverse osmosis unit of the intermediate water tank；If the three-level reverse osmosis unit is dry film
The single hop system of modules in parallel, the liquid outlet of three-level reverse osmosis unit are connected with first-stage reverse osmosis device, purified liquor outlet and reuse
Water tank connects.
A kind of 2. thermal power plant's sewage zero-discharge processing unit according to claim 1, it is characterised in that：The one-level reverse osmosis
The membrane module number ratio of saturating device first paragraph and second segment is 2:1.
A kind of 3. thermal power plant's sewage zero-discharge processing unit according to claim 1, it is characterised in that：The regulation is catchmented
Elevator pump is additionally provided between pond and pretreatment pool.
A kind of 4. thermal power plant's sewage zero-discharge processing unit according to claim 1, it is characterised in that：The one-level concentrated water
Case and two level concentrated water box top are respectively provided with spraying and cleaning apparatus, and bottom sets slag notch, and the slag notch connects with regulation collecting-tank
Connect, and one-level concentrated water case and two level concentrated water chamber interior wall are coated with antiseptic and rustproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733989.6U CN207016618U (en) | 2017-06-22 | 2017-06-22 | A kind of thermal power plant's sewage zero-discharge processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733989.6U CN207016618U (en) | 2017-06-22 | 2017-06-22 | A kind of thermal power plant's sewage zero-discharge processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207016618U true CN207016618U (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720733989.6U Active CN207016618U (en) | 2017-06-22 | 2017-06-22 | A kind of thermal power plant's sewage zero-discharge processing unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265729A (en) * | 2017-06-22 | 2017-10-20 | 江苏金润环保工程有限公司 | A kind of thermal power plant's sewage zero-discharge processing unit |
-
2017
- 2017-06-22 CN CN201720733989.6U patent/CN207016618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265729A (en) * | 2017-06-22 | 2017-10-20 | 江苏金润环保工程有限公司 | A kind of thermal power plant's sewage zero-discharge processing unit |
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