CN106186410A - A kind of double section counter-infiltration system - Google Patents
A kind of double section counter-infiltration system Download PDFInfo
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- CN106186410A CN106186410A CN201610803785.5A CN201610803785A CN106186410A CN 106186410 A CN106186410 A CN 106186410A CN 201610803785 A CN201610803785 A CN 201610803785A CN 106186410 A CN106186410 A CN 106186410A
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- Prior art keywords
- reverse osmosis
- osmosis unit
- air bag
- section
- filter
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- 238000001764 infiltration Methods 0.000 title claims abstract description 25
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000006396 nitration reaction Methods 0.000 claims abstract description 45
- 238000001914 filtration Methods 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 14
- 230000003139 buffering effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000004148 unit process Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The embodiment of the invention discloses a kind of double section counter-infiltration system, relate to technical field of waste water processing, including: one section of reverse osmosis unit, two-stage nitration reverse osmosis unit, the dense water out of one section of reverse osmosis unit is connected by the first pipeline with the water inlet of two-stage nitration reverse osmosis unit, and this pair of section counter-infiltration system also includes: buffer and filter；Wherein, buffer includes: negative pressure canceller, tank body and air bag；Negative pressure canceller is fixed on tank body outside top；Air bag is positioned at tank body, and air bag connects with negative pressure canceller；Being provided with intake-outlet bottom air bag, intake-outlet is connected by the second pipeline and the first pipeline；Filter is installed on the first pipeline.The system that the present invention provides, stable, and have employed hermetic design, foreign body cannot be introduced into this system, thus avoids pollution.
Description
Technical field
The present invention relates to technical field of waste water processing, particularly to a kind of double section counter-infiltration systems.
Background technology
The waste water of the industries such as current Coal Chemical Industry, petrochemical industry, electric power the most first uses reverse osmosis unit to carry out dense to waste water
Contracting processes, then is evaporated crystallization, to realize the zero-emission of waste water.In order to obtain higher concentration rate, reduce evaporative crystallization
Two reverse osmosis units can be connected in wastewater treatment process, be made waste water carry out twice reverse-osmosis treated by the scale of system,
The most double section counter-infiltration system of system after this series connection, wherein, previous reverse osmosis unit is referred to as one section of reverse osmosis dress
Putting, later reverse osmosis unit is referred to as two-stage nitration reverse osmosis unit, and the dense water of one section of reverse osmosis unit enters two-stage nitration reverse osmosis unit
In carry out secondary concentration.
In double sections of counter-infiltration systems, if two reverse osmosis units are directly connected to, system fluctuation of service can be caused, hold
Fragile, such as: during double sections of counter-infiltration system starts, one section of reverse osmosis unit is first opened, and now, two-stage nitration reverse osmosis unit is the most not
Open, one section of reverse osmosis unit process the dense water that obtains cannot by handled by two-stage nitration reverse osmosis unit, this may result in one section anti-
The dense water lateral pressure of permeability apparatus raises, if hypertonia, then can damage the reverse osmosis membrane of one section of reverse osmosis unit.Therefore mesh
Intermediate buffering water tank and booster pump is used to connect two reverse osmosis units as previous.In order to balance the gas in intermediate buffering water tank
Pressure, intermediate buffering water tank is provided with passage.When double sections of counter-infiltration system starts, one section of reverse osmosis unit is first opened, and one
Section reverse osmosis unit is processed the concentrated stream obtained air in intermediate buffering water tank, intermediate buffering water tank and is arranged by passage
Go out；When double sections of counter-infiltration system shutdown, one section of reverse osmosis unit first cuts out, and the dense water in intermediate buffering water tank passes through booster pump
Flowing to two-stage nitration reverse osmosis unit, the most extraneous air enters in water tank by passage, which ensure that two-stage nitration reverse osmosis
The unused time of device.Owing to intermediate buffering water tank is provided with passage, it is not airtight, so foreign body is also possible to by logical
Pore enters in intermediate buffering water tank, thus causes polluting.
Summary of the invention
The embodiment of the invention discloses a kind of double section counter-infiltration system, be used for solving existing pair of section counter-infiltration system and use
Intermediate buffering water tank adds the drawback of booster pump connected mode.Technical scheme is as follows:
A kind of double section counter-infiltration system, including: one section of reverse osmosis unit, two-stage nitration reverse osmosis unit, described one section of reverse osmosis
The dense water out of device is connected by the first pipeline with the water inlet of described two-stage nitration reverse osmosis unit, also includes: buffer and mistake
Filter；
Wherein, described buffer includes: negative pressure canceller, tank body and air bag；
Described negative pressure canceller is fixed on described tank body outside top；
Described air bag is positioned at described tank body, and described air bag connects with described negative pressure canceller；
Being provided with intake-outlet bottom described air bag, described intake-outlet is connected with described first pipeline by the second pipeline
Logical；
Described filter is installed on described first pipeline.
In the preferred embodiment of the present invention, described air bag is outside forms closed chamber with described tank interior.
One in the present invention is more highly preferred in embodiment, and described filter includes: filtering area and product pool；
Described filtering area is positioned at above described product pool, and is separated by dividing plate；Top, described filtering area is provided with aerofluxus
Valve；Described filtering area is provided with element kit, described element kit include at least one filter element, described filter element be fixed on described every
Dividing plate below plate, and filter element is provided with opening；It is provided with water inlet on the sidewall of described filtering area；
The bottom in described product pool is provided with outlet.
One in the present invention is more highly preferred in embodiment, and the normal pore size of described filter is 1 micron～5 microns.
One in the present invention is more highly preferred in embodiment, also includes: chemicals dosing plant；
Described chemicals dosing plant is installed on described first pipeline；Described chemicals dosing plant is for adding scale inhibition to described system
Agent.
One in the present invention is more highly preferred in embodiment, also includes: control device；
Described control device respectively with described one section of reverse osmosis unit, described two-stage nitration reverse osmosis unit, described buffer and
Described filter is connected.
A kind of double section counter-infiltration systems that the present invention provides, when start or two-stage nitration reverse osmosis unit fault, one section of reverse osmosis
The concentrated stream that device process obtains thoroughly enters in the air bag of buffer；When shutdown or one section of reverse osmosis unit fault, buffer
Air bag in concentrated stream to two-stage nitration reverse osmosis unit, and the negative pressure canceller in buffer can eliminate in air bag negative
Pressure.The system that the present invention provides, stable, and have employed hermetic design, foreign body cannot be introduced into this system, thus avoids
Pollute.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The schematic diagram of a kind of pair of section counter-infiltration system that Fig. 1 provides for the embodiment of the present invention；
The structural representation of a kind of buffer that Fig. 2 provides for the embodiment of the present invention；
The structural representation of a kind of filter that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiments provide a kind of double section counter-infiltration system, as it is shown in figure 1, include: one section of reverse osmosis unit 1,
Two-stage nitration reverse osmosis unit 2, the dense water out of one section of reverse osmosis unit 1 and the water inlet of two-stage nitration reverse osmosis unit 2 are by the first pipe
Road is connected, and this pair of section counter-infiltration system also includes: buffer 3 and filter 4；
Wherein, buffer 3 includes: negative pressure canceller 5, tank body 6 and air bag 7；
Negative pressure canceller 5 is fixed on tank body 6 outside top；
Air bag 7 is positioned at tank body 6, and air bag 7 connects with negative pressure canceller 5；
Being provided with intake-outlet bottom air bag 7, this intake-outlet is connected with described first pipeline by the second pipeline；
Filter 4 is installed on the first pipeline.
When above-mentioned pair of section counter-infiltration system start, first opening one section of reverse osmosis unit 1, waste water is filled by one section of reverse osmosis
The water inlet putting 1 enters in one section of reverse osmosis unit 1, carries out concentration, after then processing in one section of reverse osmosis unit 1
The dense water obtained is flowed out by the dense water out of one section of reverse osmosis unit 1, and a part can flow to two-stage nitration reverse osmosis again by filter 4
Device 2 thoroughly, but mainly it is flowed in the air bag 7 of buffer 3 by the intake-outlet of buffer 3, and air bag 7 has elasticity, because of
This air bag 7 can be gradually increased along with the continuous inflow of dense water, and the pressure in air bag 7 also can be gradually increased simultaneously.When two-stage nitration reverse osmosis
Thoroughly after device 2 start, the dense water of one section of reverse osmosis unit 1 is no longer flow towards buffer 3, but first passes through filter 4 in dense water
Float etc. filter, flow to two-stage nitration reverse osmosis unit 2 the most again.In this start process, buffer 3 serves slow
The effect of punching, it is ensured that the available machine time of two-stage nitration reverse osmosis unit 2, the dense water lateral pressure preventing one section of reverse osmosis unit 1 is too high,
Damage the reverse osmosis membrane of one section of reverse osmosis unit 1.
When above-mentioned pair of section counter-infiltration system shutdown, first close one section of reverse osmosis unit 1, say, that one section of reverse osmosis
The dense water of device 1 no longer flows out, and now, two-stage nitration reverse osmosis unit 2 is also not turned off.Dense water in air bag 7 is due to two-stage nitration reverse osmosis
The effect of the high-pressure pump of device 2, after filter 4 filters, is flowed into two-stage nitration reverse osmosis by the water inlet of two-stage nitration reverse osmosis unit 2
Thoroughly in device 2.In this shutdown process, the pressure in air bag 7 promotes dense water and flows out in air bag 7, and air bag 7 is along with dense water
Outflow and constantly diminish.Now, buffer 3 serves the effect of buffering equally, does not also shut down at two-stage nitration reverse osmosis unit 2
In the case of, make concentrated stream to two-stage nitration reverse osmosis unit 2, make two-stage nitration reverse osmosis unit 2 can continue to run well, it is ensured that two-stage nitration
The unused time of reverse osmosis unit 2.It will be appreciated by persons skilled in the art that one section of reverse osmosis dress in the embodiment of the present invention
Put 1 and two-stage nitration reverse osmosis unit 2 each mean the reverse osmosis unit including high-pressure pump.
In running, when two-stage nitration reverse osmosis unit 2 breaks down, the dense water of one section of reverse osmosis unit 1 mainly leads to
The intake-outlet crossing buffer 3 is flowed in the air bag 7 of buffer 3, makes one section of reverse osmosis unit 1 to continue within a certain period of time
Continuous normal operation.When one section of reverse osmosis unit 1 breaks down, after the dense water in air bag 7 is filtered by filter 4, then pass through
The water inlet of two-stage nitration reverse osmosis unit 2 is flowed in two-stage nitration reverse osmosis unit 2, makes two-stage nitration reverse osmosis unit 2 within a certain period of time
Can continue to run well.When the pressure in air bag 7 is negative pressure, start negative pressure canceller 5, eliminate the negative pressure in air bag 7.For
Protection system and prevent foreign body from entering, when negative pressure canceller 5 starts, stops two-stage nitration reverse osmosis unit 2.Need explanation
Being that negative pressure canceller 5 can use negative pressure canceller commonly used in the art, the present invention is not specifically described at this.
Time properly functioning, waste water enters in one section of reverse osmosis unit 1 by the water inlet of one section of reverse osmosis unit 1,
Carrying out concentration in one section of reverse osmosis unit 1, the dense water obtained after then processing is gone out by the dense water of one section of reverse osmosis unit 1
Mouth flows out, and first passes through filter 4 and filters dense water, is flowed into two by the water inlet of two-stage nitration reverse osmosis unit 2 the most again
Section reverse osmosis unit 2 carries out two-stage nitration concentration.
As seen from the above, buffer 3 has not only acted as the effect of buffering in the entire system, also acts storage energy
Effect.Owing to buffer 3 keeps stable pressure, therefore the dense water of one section of reverse osmosis unit 1 is with pressure flows directly into two-stage nitration reverse osmosis
Device 2 thoroughly.So the double section counter-infiltration systems using the embodiment of the present invention to provide, it is possible not only to prevent foreign body from entering, it is to avoid dirty
Dye system, it is also possible to save the consumption of the energy.
It should be noted that any side of filter 4 may be mounted at the first pipeline and the second pipeline is connected position.
Although Fig. 1 particularly illustrating filter 4 be arranged close to the side of two-stage nitration reverse osmosis unit 2, but this being only merely the present invention
A preferred embodiment.In actual application, which side filter 4 is specifically arranged on, and those skilled in the art can be according to tool
Body situation is determined, and the present invention is not defined at this.
Preferably, the normal pore size of filter 4 is 1 micron～5 microns.
Double section counter-infiltration systems in the embodiment of the present invention in the specific implementation, can be with as in figure 2 it is shown, air bag 7 is outside
Tank body 6 is internally formed closed chamber 8.In system operation, the pressure of closed chamber 8 is identical with the pressure in air bag 7 all the time.This
Time, buffer 3 can also include: Pressure gauge 9；Pressure gauge 9 is fixed on outside tank body 6.What Pressure gauge 9 was measured is closed chamber 8
Pressure, owing to the pressure of closed chamber 8 is identical with the pressure in air bag 7, so the pressure that Pressure gauge 9 records also is air bag 7 simultaneously
Interior pressure.In order to preferably protect system, the first force value and the second force value can be set respectively, when Pressure gauge 9 records
Pressure less than the first force value time, stop two-stage nitration reverse osmosis unit 2；The pressure recorded when Pressure gauge 9 is higher than the second force value
Time, stop one section of reverse osmosis unit 1.The first described force value and the second force value can be according to the system actual places to waste water
Reason situation is determined by those skilled in the art, and the present invention is not defined at this.Additionally, control for convenience, Pressure gauge 9 is permissible
Use electro connecting pressure gauge.
When being embodied as, as it is shown on figure 3, filter 4 may include that filtering area 10 and produces pool 11；Filtering area 10 is positioned at
Produce above pool 11, and separated by dividing plate 12；Top, filtering area 10 is provided with air bleeding valve 13；Filtering area 10 is provided with filter element group
Part, this element kit includes at least one filter element 14, and the dividing plate that filter element 14 is fixed on below dividing plate 12, and filter element 14 is provided with out
Mouth 15；Water inlet 16 it is provided with on the sidewall of filtering area 10；The bottom producing pool 11 is provided with outlet 17.
During the above-mentioned filter 4 of first use, needing to open air bleeding valve 13, to get rid of the gas in filter 4, balance filters
Pressure in device 4.When normally using, air bleeding valve 13 is closed.Discharge from the dense water out of one section of reverse osmosis unit 1
Dense water or the dense water flowed out from buffer 3 enter into the float filtering area 10, in dense water by the water inlet 16 of filter 4
Retained by filter element 14 with pollutant such as flocculates, and the small-molecule substance in dense water can enter in filter element 14, passes through the most again
Opening 15 enters in product pool 11, discharges finally by outlet 17.It should be noted that filter element 14 can use this area
Conventional filter element, the present invention is not specifically described at this.
In order to prevent fouling, the double section counter-infiltration systems in the embodiment of the present invention can also include: chemicals dosing plant.Dosing fills
Put and be arranged on the first pipeline, for adding antisludging agent to said system.Antisludging agent can disperse the slightly solubility in dense water inorganic
Salt, inhibits or interferes with slightly solubility inorganic salt and precipitates in a device or fouling.In actual application, chemicals dosing plant may be mounted at first
Pipeline and the second pipeline are connected any side of position.When said system had both included filter 4, when including chemicals dosing plant again,
In order to prevent blocking filter, it is preferred that chemicals dosing plant is arranged on the rear end of filter 4.It should be noted that antisludging agent is permissible
For antisludging agent commonly used in the art, such as organic phosphine series antisludging agent etc., being specially which kind of antisludging agent, the present invention is not carried out at this
Limit；Above-mentioned chemicals dosing plant can use chemicals dosing plant commonly used in the art, and the present invention is not specifically described at this.
Being controlled whole processing procedure for convenience, the double section counter-infiltration systems in the embodiment of the present invention can also wrap
Include: control device；Control device respectively with one section of reverse osmosis unit 1, two-stage nitration reverse osmosis unit 2, buffer 3 and filter 4 phase
Even.By controlling the process control of device, it is possible to make whole processing procedure automaticity higher, it is possible to make staff obtain
Liberation further, can also make whole processing procedure more standardized simultaneously, thus ensures more thorough to the concentration of waste water
The end.
It will be appreciated by persons skilled in the art that one section of reverse osmosis unit 1 in the embodiment of the present invention and two-stage nitration reverse osmosis
Device 2 all can use reverse osmosis unit commonly used in the art thoroughly, and the present invention is not specifically described at this.
As seen from the above-described embodiment, a kind of double section counter-infiltration systems that the present invention provides, at start or two-stage nitration reverse osmosis dress
When putting fault, one section of reverse osmosis unit processes the concentrated stream obtained and enters in the air bag of buffer；In shutdown or one section of reverse osmosis
During plant failure, the concentrated stream in the air bag of buffer is to two-stage nitration reverse osmosis unit, and the negative pressure canceller in buffer can
To eliminate the negative pressure in air bag.The system that the present invention provides, stable, and have employed hermetic design, foreign body cannot be introduced into
This system, thus avoid pollution.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Each embodiment in this specification all uses relevant mode to describe, identical similar portion between each embodiment
Dividing and see mutually, what each embodiment stressed is the difference with other embodiments.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All
Any modification, equivalent substitution and improvement etc. made within the spirit and principles in the present invention, are all contained in protection scope of the present invention
In.
Claims (6)
1. double section counter-infiltration systems, including: one section of reverse osmosis unit, two-stage nitration reverse osmosis unit, described one section of reverse osmosis dress
The dense water out put is connected by the first pipeline with the water inlet of described two-stage nitration reverse osmosis unit, it is characterised in that also include: slow
Rush device and filter；
Wherein, described buffer includes: negative pressure canceller, tank body and air bag；
Described negative pressure canceller is fixed on described tank body outside top；
Described air bag is positioned at described tank body, and described air bag connects with described negative pressure canceller；
Being provided with intake-outlet bottom described air bag, described intake-outlet is connected with described first pipeline by the second pipeline；
Described filter is installed on described first pipeline.
2. the system as claimed in claim 1, it is characterised in that described air bag is outside forms closed chamber with described tank interior.
3. the system as claimed in claim 1, it is characterised in that described filter includes: filtering area and product pool；
Described filtering area is positioned at above described product pool, and is separated by dividing plate；Top, described filtering area is provided with air bleeding valve；Institute
Stating filtering area and be provided with element kit, described element kit includes that at least one filter element, described filter element are fixed on described dividing plate, and
Dividing plate below filter element is provided with opening；It is provided with water inlet on the sidewall of described filtering area；
The bottom in described product pool is provided with outlet.
4. the system as claimed in claim 1, it is characterised in that the normal pore size of described filter is 1 micron～5 microns.
5. the system as claimed in claim 1, it is characterised in that also include: chemicals dosing plant；
Described chemicals dosing plant is installed on described first pipeline；Described chemicals dosing plant is for adding antisludging agent to described system.
6. the system as according to any one of claim 1 to 5, it is characterised in that also include: control device；
Described control device respectively with described one section of reverse osmosis unit, described two-stage nitration reverse osmosis unit, described buffer and described
Filter is connected.
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| CN201610803785.5A CN106186410A (en) | 2016-09-06 | 2016-09-06 | A kind of double section counter-infiltration system |
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| CN202654783U (en) * | 2012-04-11 | 2013-01-09 | 南京超净纯水科技有限公司 | Efficient active carbon fiber filtering device |
| CN104496060A (en) * | 2015-01-09 | 2015-04-08 | 刘华军 | Seawater desalination and comprehensive utilization process and system |
| CN204875937U (en) * | 2015-04-08 | 2015-12-16 | 长沙奔宇机电科技有限公司 | Pot -type pressure -superposed water supply device's gas - water separation stationary flow compensation jar |
| CN205275368U (en) * | 2015-12-30 | 2016-06-01 | 郑州恒博科技股份有限公司 | Pure water processing system for NOX falls in short flow single cycle combustion engine |
| CN105756133A (en) * | 2016-04-22 | 2016-07-13 | 无锡康宇水处理设备有限公司 | Mute multi-connected pipe network pressure-superposed water supply device and working method thereof |
| CN206051712U (en) * | 2016-09-06 | 2017-03-29 | 博天环境集团股份有限公司 | A kind of pair of section counter-infiltration system |
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