CN107376647A - Device is filtered by a kind of open circulating water and uses its circulating water treatment method - Google Patents
Device is filtered by a kind of open circulating water and uses its circulating water treatment method Download PDFInfo
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- CN107376647A CN107376647A CN201710822531.2A CN201710822531A CN107376647A CN 107376647 A CN107376647 A CN 107376647A CN 201710822531 A CN201710822531 A CN 201710822531A CN 107376647 A CN107376647 A CN 107376647A
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- filter
- valve
- backwash
- dosing
- recirculated water
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (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 present invention provides filter device by a kind of open circulating water and uses its circulating water treatment method, and described device includes：First filter, the second filter, dosing tank, dosing pump and corresponding connecting pipe and valve, the circulating water treatment method include filtering, backwash and dosing program.Experiment of Recycle Water Filtration device of the present invention uses advanced filtering, backwash and dosing flow, can switch use between two filters, can carry out drug immersion and clear water backwash online, and whole day runs without interruption.
Description
Technical field
The present invention relates to filter device by a kind of open circulating water and its circulating water treatment method is used, more particularly to it is a kind of
Filter device and circulating water treatment method by the open circulating water of filter element are used as using tubular ceramic membrane.
Background technology
In industrial circle, recirculating cooling water system is divided into closed cycle water and open circulation water system.Open circulation water system
Unite due to it is relatively low invest, convenient maintenance mode, reach and be widely applied.In open circulating water system operation, especially
It is substantial amounts of suspension in cooling water be present.Due to the entrance of dust in air debris, part can be caused after daily agent-feeding treatment
Incrustation scale, rust deposite, the muddiness come off, disperse, causing water quality of microorganism viscosity mud, cause pipeline blockage or influence the property of equipment
Energy.To ensure the normal operation of equipment, it is necessary to remove these impurity in time.Due to solubility very little of these impurity in water,
It can generally be removed by the way of mechanical filter.
Filter device is typically filtered using sand filtering material, carbon leaching material or fiber filtering by circulation at present, valency
Lattice are cheap, and material is easy to get, but due to foundry loam, suspension etc. in running be present, cause filtrate hardened or fibre bundle distorts,
Running resistance is big, and backwashing time length, filter efficiency is decreased obviously, and influences the long-period stable operation of device, while cause to filter
A large amount of losses of material are, it is necessary to which the new filtrate of regular replenishment, later stage operating cost are very high.
Therefore, for treating capacity is big, floor space is small, filter, backwash and dosing flow are advanced, uninterrupted fortune in this area
There is urgent demand for filter device by capable period.
The content of the invention
The present invention provides filter device by a kind of open circulating water, can solve the problem that in recirculated cooling water filter process because foundry loam,
Filtrate caused by suspension etc. is present is hardened, distortion, the problem of running resistance is big, backwashing time is long, filter efficiency is low, ensure
The requirement of open circulation water turbidity, reaches the effect of closed cycle water, and the crash structure of filter can prevent filter from transporting
There is the broken situation of collision in defeated, installation and unloading process.
Filter device includes first filter, the second filter, dosing tank and dosing pump by the open circulating water of the present invention, its
In, first filter is provided with recirculated water feed pipe and recirculated water discharge nozzle, and the second filter is provided with recirculated water feed pipe and circulation
Water discharge nozzle, the recirculated water discharge nozzle of first filter and the recirculated water discharge nozzle of the second filter are respectively via first outlet valve
Recirculated water delivery trunk road, the circulation of the recirculated water feed pipe and the second filter of first filter are connected to second outlet valve
Water feed manifold synthesis recirculated water input total pipeline, in the recirculated water feed pipe of first filter and the recirculated water of the second filter
The first inlet valve and the second inlet valve are respectively equipped with feed pipe,
A branch pipe for being provided with the first backwash blowoff valve, branch pipe connection are separated on the recirculated water feed pipe of first filter
Backwash water discharge tube；A branch pipe for being provided with the second backwash blowoff valve is separated on the recirculated water feed pipe of second filter, should
Branch pipe also connects backwash water discharge tube,
The outlet of dosing tank connects the entrance of dosing pump via pipeline, and the outlet conduit of dosing pump branches into be added provided with first
The tie point of medicine valve and the second branch road provided with the second dosing valve, tie point are connected to the recirculated water discharging of first filter
Pipe, the second branch road are connected to the recirculated water discharge nozzle of the second filter,
Connection one sets anti-between the recirculated water discharge nozzle of first filter and the recirculated water discharge nozzle of the second filter
Wash the backwash waterpipe of regulating valve.
Further, on the recirculated water discharge nozzle of first filter, (thus draw from the circulating water outlet of first filter
Go out recirculated water discharge nozzle) rise, it is that tie point, the dosing of backwash waterpipe and the recirculated water discharge nozzle of first filter pump out successively
Tie point, the first outlet valve of the tie point of mouth pipeline and the recirculated water discharge nozzle of first filter；
On the period discharge nozzle of the second filter, (recirculated water is thus drawn from the circulating water outlet of the second filter
Discharge nozzle) rise, it is tie point, the dosing pump outlet conduit of the recirculated water discharge nozzle of backwash waterpipe and the second filter successively
Tie point, the second outlet valve of the recirculated water discharge nozzle of second branch road and the second filter.
Further, first filter circulating water intake (thus draw recirculated water feed pipe) and the first inlet valve it
Between recirculated water feed pipe on draw provided with the first backwash blowoff valve branch pipe；
In circulation of the circulating water intake (thus draw recirculated water feed pipe) between the second inlet valve of the second filter
The branch pipe provided with the second backwash blowoff valve is drawn on water feed pipe.
Further, dosing pump outlet conduit sets dosing check-valves.
Further, first filter and the second filter interior are tubular ceramic membrane cartridge.Tubular ceramic membrane mainly with
The inorganic ceramic materials such as aluminum oxide, zirconium oxide, titanium oxide and the silica of different size are as supporter, through surface coating, height
Temperature is fired and formed.Tubular ceramic membrane tube wall gathers micropore, according in the range of certain membrane aperture, the material molecule diameter of infiltration
Different then permeability is different, and using the pressure differential of film both sides as driving force, film is filter medium, under certain pressure effect, when following
When ring water flows through film surface, only allow water, inorganic salts, small-molecule substance to pass through film, and prevent suspension, glue and the micro- life in water
The macromolecular substances such as thing pass through.Tubular ceramic membrane can use the ceramic sintering process of Chinese tradition to prepare, and have stable physics
Chemical property, it can be used under normal circumstances more than 10 years.Compared to traditional west chemical synthesis membrane module, tubular ceramic membrane has
The distinguishing features such as anti-pollution, easy cleaning, cost be low.
Further, the membrane aperture of tubular ceramic membrane cartridge is 0.8nm-1 μm.Filtering accuracy covers micro-filtration, ultrafiltration, nanofiltration
Rank.
First outlet valve and second outlet valve can be regulating valves, the first inlet valve, the second inlet valve, the first backwash blowdown
Valve and the second backwash blowoff valve can be ball valves.
Due to tubular ceramic membrane in collision it is broken, when in use, the installation of tubular ceramic membrane with crash structure extremely
Close important.Present invention also offers a kind of crash structure filter core used for above-mentioned filter, the safety of filter core both ensure that
Property, while also ensureing the convenience of filter process amount and installation, it includes：Tubular ceramic membrane cartridge, installed in tubular ceramic
The filter core mounting board on membrane cartridge top, the orifice plate installed in tubular ceramic membrane cartridge bottom, it is connected to filter core mounting board and orifice plate
Between the pull bar that plays the role of fastening, the top of filter core mounting board is provided with hanger.
Further, tubular ceramic membrane cartridge top is provided with rubber gasket.
Further, the female adapter for being used for welding tubular type ceramic membrane filter core is provided with inside filter core mounting board.
Further, bottom orifice plate ensures every filter according to circulation area and tubular ceramic membrane cartridge contact area perforate
It is enough that core contacts good and circulation area with bottom orifice plate.
Further, a pull bar, filter core mounting board are connected between the center of filter core mounting board and the center of bottom orifice plate
Surrounding between the orifice plate of bottom is uniformly distributed 4-8 root pull bars, preferably 5.
Further, every pull bar is equipped with fixing nut.
Handled invention further provides the recirculated water (recirculated cooling water) using filter device by above-mentioned open circulating water
Method, this method include：Filtering, backwash, dosing,
Filtering is as follows using technological process：
First filter is run, and the second filter is standby, and the first inlet valve and first outlet valve are opened, and other valves close
Close, recirculated water is back to circulation after the first inlet valve enters first filter filtering through first outlet valve；
First filter is standby, and the operation of the second filter, the second inlet valve, second outlet valve are opened, and other valves are closed,
Recirculated water is back to circulation after the second inlet valve enters the filtering of the second filter through second outlet valve；
First filter and the second filter are run simultaneously：First inlet valve, first outlet valve, the second inlet valve and second
Outlet valve is opened, and other valves are closed, and recirculated water respectively enters first filter, second through the first inlet valve, the second inlet valve
After filter filtering, circulation is back to through first outlet valve, second outlet valve；
After using to certain time, the exits and entrances valve of wherein one filter is closed, using being not turned off terminal valve
The filter of door carries out backwash to it；
Backwash process flow is as follows：
First filter filters, the second filter backwash：It is first inlet valve, first outlet valve, backwash regulating valve, second anti-
Blowoff valve unlatching is washed, other valves are closed, and the clear water after first filter filtering, enter the second filter through backwash regulating valve,
Backwash is carried out from the inside to the outside to tubular ceramic membrane cartridge, while the impurity washed away in the second filter cartridge body, backwash water is through second
Backwash blowoff valve is discharged.
First filter backwash, the filtering of the second filter：It is second inlet valve, second outlet valve, backwash regulating valve, first anti-
Blowoff ball valve unlatching is washed, other valves are closed, and clear water is to first filter tubular ceramic membrane filtration after being filtered using the second filter
Core carries out backwash from the inside to the outside, while the impurity washed away in first filter cylinder, and backwash water is discharged through the first backwash blowoff valve；
Dosing technique flow is as follows：
First filter filters, the second filter dosing：First inlet valve, first outlet valve, the second dosing valve are opened, its
Its valve is closed, and starts dosing pump, corresponding medicament in dosing tank is pumped into the second filter, stops dosing pump, closes the second dosing
Valve, (such as after 5-15 minutes, after preferably from about 10 minutes) unlatching backwash regulating valve, the second backwash blowoff valve, are adopted after a period of time
Backwash is carried out with clear water after filtering；
First filter dosing, the filtering of the second filter：Second inlet ball valve, second outlet ball valve, the first dosing valve are opened
Open, other valves are closed, and start dosing pump, corresponding medicament in dosing tank is pumped into first filter, stop dosing pump, close first
Dosing valve, (such as after 5-15 minutes, after preferably from about 10 minutes) unlatching backwash regulating valve, the first backwash blowdown after a period of time
Valve, backwash is carried out using clear water after filtering.
Preferably, formula is gone out in entering outside filtering use, recirculated water enters outside filter core, and impurity particle is filtered in equipment
Portion is attached on filter core.Backwash and dosing program use inside-admission outside-exit type, i.e. backwash clear water or medicament enters inside filter core
Enter.
In filtering process, filter core is to go out formula in entering outside, and recirculated water enters outside filter core, and impurity particle is filtered to equipment
Inside is attached on filter core.When filter resistance increase, it is necessary to when switching, carried out using another filter outlet clear water anti-
Wash.During backwash, clear water enter in it is outgoing by the way of, it is easy to clean quick.When having more microorganism or backwash in recirculated water
During the impurity that can not be removed, different medicaments should be added according to impurity composition.When medicament adds, also enter in use outgoing
Mode.After medicament adds, reasonable time is spaced, after filter core foreign matter is fully dissolved, is rinsed using clear water.Use
When, filter switching time can be determined according to impurity content in recirculated water.
The beneficial effect that the present invention obtains：
(1) collision prevention device of filter uses integral skid mounting formula, and advanced structure is reliable, can effectively prevent tubular ceramic
The mechanical damage of film, and treating capacity is big, floor space is small, transports, be quick and easy for installation.
(2) Experiment of Recycle Water Filtration device uses advanced filtering, backwash and dosing flow, can switch between two filters
Use, drug immersion and clear water backwash can be carried out online, whole day runs without interruption.
(3) circulating water treatment precision configures as needed, covers micro-filtration, ultrafiltration, nanofiltration rank.
(4) the applied widely of Experiment of Recycle Water Filtration device, stain resistance are good, corrosion resistance is strong, high mechanical strength, wearability
Good, regenerability is good, can be realized according to user's request full-automatic unmanned on duty.
Brief description of the drawings
Filter apparatus structure schematic diagram by a kind of Fig. 1-open circulating water.
A kind of Fig. 2-crash structure schematic diagram for being used for protecting filter.
Embodiment
In order that the present invention is readily apparent from and understood, further illustrate below in conjunction with the accompanying drawings.
The present invention, which provides filter device by open circulating water, to be included first filter A, the second filter B, dosing tank T1 and adds
Teat pipette P1, wherein, first filter A is provided with recirculated water feed pipe L2 and recirculated water discharge nozzle L7, and the second filter is provided with circulation
Water feed pipe L3 and recirculated water discharge nozzle L8, the recirculated water discharge nozzle L7 and the second filter of first filter recirculated water discharging
Pipe L8 is connected to recirculated water delivery trunk road L10, first filter via first outlet valve V4A and second outlet valve V4B respectively
Recirculated water feed pipe L2 and the second filter recirculated water feed pipe L3 merge into recirculated water input total pipeline L1, in the first mistake
The first inlet valve V1A and second is respectively equipped with the recirculated water feed pipe L2 of filter and the recirculated water feed pipe L3 of the second filter
Inlet valve V1B,
A branch pipe L4 for being provided with the first backwash blowoff valve V2A is separated on the recirculated water feed pipe L2 of first filter, should
Branch pipe L4 connection backwash water discharge tubes L6；One is separated on the recirculated water feed pipe L3 of second filter and is provided with the second backwash row
Dirty valve V2B branch pipe L5, the branch pipe also connect backwash water discharge tube L6,
Dosing tank T1 outlet is via pipeline L11 connection dosing pumps P1 entrance, dosing pump P1 outlet conduit L12 branches
For the tie point L13 provided with the first dosing valve V3A and the second branch road L14 provided with the second dosing valve V3B, tie point L13
Recirculated water the discharge nozzle L7, the second branch road L14 for being connected to first filter A are connected to the recirculated water discharge nozzle of the second filter
L8,
Connection one is set between the recirculated water discharge nozzle L7 of first filter and the recirculated water discharge nozzle L8 of the second filter
Put backwash regulating valve V5 backwash waterpipe L9.
It is preferred that on the recirculated water discharge nozzle L7 of first filter, (thus drawn from the circulating water outlet of first filter
Recirculated water discharge nozzle) rise, it is backwash waterpipe L9 and the recirculated water discharge nozzle L7 of first filter tie point, dosing pump successively
The tie point L13 of outlet conduit and the recirculated water discharge nozzle L7 of first filter tie point, first outlet valve V4A；
On the period discharge nozzle L8 of the second filter, (circulation is thus drawn from the circulating water outlet of the second filter
Water discharge nozzle) rise, it is the recirculated water discharge nozzle L8 of backwash waterpipe L9 and the second filter tie point, dosing pump discharge successively
Second branch road L14 of pipeline and the recirculated water discharge nozzle L8 of the second filter tie point, second outlet valve V4B.
It is preferred that first filter circulating water intake (thus draw recirculated water feed pipe) and the first inlet valve V1A it
Between recirculated water feed pipe L2 on draw provided with the first backwash blowoff valve V2A branch pipe L4；
In circulating water intake (thus drawing recirculated water feed pipe) following between the second inlet valve V1B of the second filter
The branch pipe L5 provided with the second backwash blowoff valve V2B is drawn on ring water feed pipe.
Dosing check-valves V6 can be set in dosing pump outlet conduit L12.
First filter and the second filter interior are tubular ceramic membrane cartridge.Tubular ceramic membrane is mainly with different size
The inorganic ceramic materials such as aluminum oxide, zirconium oxide, titanium oxide and silica form as supporter through surface coating, high-temperature firing.
Tubular ceramic membrane tube wall is gathered micropore, and according in the range of certain membrane aperture, the material molecule diameter difference of infiltration is then permeated
Rate is different, and using the pressure differential of film both sides as driving force, film is filter medium, under certain pressure effect, when recirculated water flows through film
During surface, only allow water, inorganic salts, small-molecule substance to pass through film, and prevent the macromoleculars such as suspension, glue and the microorganism in water
Material passes through.Tubular ceramic membrane can use the ceramic sintering process of Chinese tradition to prepare, and have stable physical and chemical performance, just
It can be used more than 10 years in the case of often.Compared to traditional west chemical synthesis membrane module, tubular ceramic membrane has anti-pollution, Yi Qing
Wash, the distinguishing feature such as cost is low.The membrane aperture of tubular ceramic membrane cartridge can be 0.8nm-1 μm so that filtering accuracy is covered micro-
Filter, ultrafiltration, nanofiltration rank.
First outlet valve V4A and second outlet valve V4B can be regulating valve, the first inlet valve V1A, the second inlet valve V1B,
First backwash blowoff valve V2A and the second backwash blowoff valve V2B can be ball valve.
Due to tubular ceramic membrane in collision it is broken, when in use, the installation of tubular ceramic membrane with crash structure extremely
Close important.Filter of the present invention preferably uses crash structure filter core, both ensure that the security of filter core, while also ensure filtering
Device treating capacity and the convenience of installation, it includes：Tubular ceramic membrane cartridge 2, the filter core installed in tubular ceramic membrane cartridge top
Installing plate 1, the orifice plate 4 installed in tubular ceramic membrane cartridge bottom, it is connected between filter core mounting board and orifice plate and plays the role of fastening
Pull bar 3, the top of filter core mounting board is provided with hanger 5.
Tubular ceramic membrane cartridge top is preferably provided with rubber gasket.
The female adapter for being used for welding tubular type ceramic membrane filter core can be provided with inside filter core mounting board.
Bottom orifice plate ensures every filter core and base apertures according to circulation area and tubular ceramic membrane cartridge contact area perforate
Plate contact is good and circulation area is enough.
A pull bar, filter core mounting board and bottom orifice plate are connected between the center of filter core mounting board and the center of bottom orifice plate
Between surrounding be uniformly distributed 4-8 root pull bars, preferably 5.
Further, every pull bar is equipped with fixing nut 6.
When being installed or removed to tubular ceramic membrane cartridge 2, whole device is sling by hanger 5, directly pacified
Dress or dismounting, because the protection of bottom orifice plate 4, tubular ceramic membrane cartridge 2 and the object of surrounding will not collide, and reduce pipe
The broken possibility of formula ceramic membrane.
Invention further provides the circulating water treatment process using filter device by above-mentioned open circulating water, the technique stream
Journey is divided into filtering, backwash, the step of dosing three.
Using formula is gone out in entering outside during filtering, its technological process is as follows：
First filter A is run, and the second filter B is standby, and the first inlet valve V1A, first outlet ball valve V4A are opened, its
Its valve is closed, and recirculated water is back to through first outlet valve V4A and followed after the first inlet valve V1A enters first filter A filterings
Ring water system.
First filter A is standby, and the operation of the second filter B, the second inlet valve V1B, second outlet valve V4B are opened, other
Valve is closed, and recirculated water is back to after the second inlet ball valve V1B enters the filtering of the second filter B through second outlet ball valve V4B
Circulation.
First filter A and the second filter B are run simultaneously：First inlet valve V1A, the second inlet valve V1B, first outlet
Valve V4A, second outlet valve V4B are opened, and other valves are closed, and recirculated water is through the first inlet valve V1A, V1B points of the second inlet ball valve
Not Jin Ru first filter A, the second filter B filtering after, be back to circulating water through first outlet valve 1A, second outlet valve 1B
System.After using to certain time, a wherein filter exits and entrances valve is closed, it is carried out instead using another filter
Wash.
Reversely-washing uses inside-admission outside-exit type, and its technological process is as follows：
First filter A is filtered, the second filter B backwash：First inlet valve V1A, first outlet valve V4A, backwash regulation
Valve V5, the second backwash blowoff valve V2B are opened, and other valves are closed.Clear water after first filter filtering, through backwash regulating valve V5
Into the second filter, backwash is carried out from the inside to the outside to tubular ceramic membrane cartridge 2, while washed away in the second filter B cylinder
Impurity, backwash water are discharged through the second backwash blowoff valve V2B.
First filter A backwashes, the filtering of the second filter B：Second inlet valve V1B, second outlet valve V4B, backwash regulation
Valve V5, the first backwash blowoff valve V2A are opened, and other valves are closed.Similarly using clear water after the filtering of the second filter B to the first mistake
Filter A carries out backwash.
Chemical feeding type uses inside-admission outside-exit type, and technological process is as follows：
First filter A is filtered, the second filter B dosing：First inlet valve V1A, first outlet valve V4A, the second dosing
Valve V3B is opened, and other valves are closed.Start dosing pump P1, corresponding medicament in dosing tank T1 is pumped into the second filter B, stop adding
Teat pipette P1, close the second dosing valve V3B.After 10min, backwash regulating valve V5, the second backwash blowoff valve V2B are opened, using filtering
Clear water carries out backwash afterwards.
First filter A dosings, the filtering of the second filter B：Second inlet valve V1B, second outlet valve V4B, the first dosing
Valve V3A is opened, and other valves are closed.Start dosing pump P1, corresponding medicament in dosing tank T1 is pumped into first filter A, stop adding
Teat pipette P1, close the first dosing valve V3A.After 10min, backwash regulating valve V5, the first backwash blowoff valve V2A are opened, using filtering
Clear water carries out backwash afterwards.
Filter device can also be used simultaneously with the using and the reserved by a kind of open circulating water of the present invention, when a progress
During filtering, in addition one it is standby can this anti-scouring water is provided, while be further equipped with chemicals dosing plant, according to the difference of impurity screening,
Add different chemical cleanings.
Claims (14)
- A kind of 1. filter device by open circulating water, it is characterised in that it include first filter, the second filter, dosing tank and Dosing pump, wherein, first filter is provided with recirculated water feed pipe and recirculated water discharge nozzle, and the second filter is fed provided with recirculated water Pipe and recirculated water discharge nozzle, the recirculated water discharge nozzle of first filter and the recirculated water discharge nozzle of the second filter are respectively via the One outlet valve and second outlet valve are connected to recirculated water delivery trunk road, the recirculated water feed pipe of first filter and the second filtering The recirculated water feed manifold synthesis recirculated water input total pipeline of device, in the recirculated water feed pipe and the second filter of first filter Recirculated water feed pipe on be respectively equipped with the first inlet valve and the second inlet valve,A branch pipe for being provided with the first backwash blowoff valve, branch pipe connection backwash are separated on the recirculated water feed pipe of first filter Water discharge spout road；A branch pipe for being provided with the second backwash blowoff valve, the branch pipe are separated on the recirculated water feed pipe of second filter Also backwash water discharge tube is connected,The outlet of dosing tank connects the entrance of dosing pump via pipeline, and the outlet conduit of dosing pump is branched into provided with the first dosing valve Tie point and the second branch road provided with the second dosing valve, tie point be connected to the recirculated water discharge nozzle of first filter, Second branch road is connected to the recirculated water discharge nozzle of the second filter,Connection one sets backwash to adjust between the recirculated water discharge nozzle of first filter and the recirculated water discharge nozzle of the second filter Save the backwash waterpipe of valve.
- 2. filter device by open circulating water according to claim 1, it is characterised in that go out in the recirculated water of first filter It is backwash waterpipe and the recirculated water discharge nozzle of first filter successively from the circulating water outlet of first filter in expects pipe Tie point, the tie point of dosing pump outlet conduit and the tie point of recirculated water discharge nozzle, the first outlet of first filter Valve；It is backwash waterpipe successively from the circulating water outlet of the second filter on the period discharge nozzle of the second filter The circulation of the second branch road and the second filter of tie point, dosing pump outlet conduit with the recirculated water discharge nozzle of the second filter Tie point, the second outlet valve of water discharge nozzle.
- 3. filter device by open circulating water according to claim 1 or 2, it is characterised in that in the circulation of first filter The branch pipe provided with the first backwash blowoff valve is drawn on recirculated water feed pipe between water inlet and the first inlet valve；Drawn on recirculated water feed pipe between the circulating water intake and the second inlet valve of the second filter and be provided with the second backwash The branch pipe of blowoff valve.
- 4. filter device by the open circulating water according to any one of claim 1-3, it is characterised in that dosing pump discharge pipe Road sets dosing check-valves.
- 5. filter device by open circulating water according to any one of claim 1-4, it is characterised in that first filter and Second filter interior is tubular ceramic membrane cartridge；Further, the membrane aperture of tubular ceramic membrane cartridge is 0.8nm-1 μm.
- 6. filter device by the open circulating water according to any one of claim 1-5, it is characterised in that filter uses anti- Crash feature filter core, it includes：Tubular ceramic membrane cartridge, the filter core mounting board installed in tubular ceramic membrane cartridge top, installation Orifice plate in tubular ceramic membrane cartridge bottom, it is connected to the pull bar to be played the role of fastening between filter core mounting board and orifice plate, filter core peace The top of loading board is provided with hanger.
- 7. filter device by open circulating water according to claim 6, it is characterised in that tubular ceramic membrane cartridge top is provided with Rubber gasket.
- 8. filter device by the open circulating water according to claim 6 or 7, it is characterised in that be provided with inside filter core mounting board For welding the female adapter of tubular type ceramic membrane filter core.
- 9. filter device by open circulating water according to any one of claim 6-8, it is characterised in that bottom orifice plate according to Circulation area and tubular ceramic membrane cartridge contact area perforate, ensure that every filter core contacts good and circulation area with bottom orifice plate Enough.
- 10. filter device by the open circulating water according to any one of claim 6-9, it is characterised in that filter core mounting board Center and bottom orifice plate center between connect a pull bar, the surrounding between filter core mounting board and bottom orifice plate is uniformly distributed 4-8 root pull bars, preferably 5.
- 11. filter device by the open circulating water according to any one of claim 6-10, it is characterised in that every pull bar is matched somebody with somebody Standby fixing nut.
- 12. usage right requires to filter the circulating water treatment method of device, the party by the open circulating water any one of 1-11 Method includes：Filtering, backwash, dosing,Filtering is as follows using technological process：First filter is run, and the second filter is standby, and the first inlet valve and first outlet valve are opened, and other valves are closed, and are followed Ring water is back to circulation after the first inlet valve enters first filter filtering through first outlet valve；First filter is standby, and the operation of the second filter, the second inlet valve, second outlet valve are opened, and other valves are closed, circulation Water is back to circulation after the second inlet valve enters the filtering of the second filter through second outlet valve；First filter and the second filter are run simultaneously：First inlet valve, first outlet valve, the second inlet valve and second outlet Valve is opened, and other valves are closed, and recirculated water respectively enters first filter, the second filtering through the first inlet valve, the second inlet valve After device filtering, circulation is back to through first outlet valve, second outlet valve；Backwash process flow is as follows：First filter filters, the second filter backwash：First inlet valve, first outlet valve, backwash regulating valve, the second backwash row Dirty valve is opened, and other valves are closed, and the clear water after first filter filtering, enters the second filter through backwash regulating valve, to pipe Formula ceramic membrane filter core carries out backwash from the inside to the outside, while the impurity washed away in the second filter cartridge body, and backwash water is through the second backwash Blowoff valve is discharged.First filter backwash, the filtering of the second filter：Second inlet valve, second outlet valve, backwash regulating valve, the first backwash row Dirty ball valve is opened, and other valves are closed, after being filtered using the second filter clear water to first filter tubular ceramic membrane cartridge from Interior to outer carry out backwash, while the impurity washed away in first filter cylinder, backwash water are discharged through the first backwash blowoff valve；Dosing technique flow is as follows：First filter filters, the second filter dosing：First inlet valve, first outlet valve, the second dosing valve are opened, Qi Tafa Door is closed, and starts dosing pump, corresponding medicament in dosing tank is pumped into the second filter, stop dosing pump, the second dosing valve of closing, and one (such as after 5-15 minutes, after preferably from about 10 minutes) opens backwash regulating valve, the second backwash blowoff valve after the section time, using filtering Clear water carries out backwash afterwards；First filter dosing, the filtering of the second filter：Second inlet ball valve, second outlet ball valve, the first dosing valve are opened, its Its valve is closed, and starts dosing pump, corresponding medicament in dosing tank is pumped into first filter, stops dosing pump, closes the first dosing Valve, (such as after 5-15 minutes, after preferably from about 10 minutes) unlatching backwash regulating valve, the first backwash blowoff valve, are adopted after a period of time Backwash is carried out with clear water after filtering.
- 13. circulating water treatment method according to claim 12, it is characterised in that when filter filter operation a to timing Between after, close wherein one filter exits and entrances valve, backwash is carried out to it using the filter for being not turned off exits and entrances valve.
- 14. circulating water treatment method according to claim 12, it is characterised in that go out formula, circulation in entering outside filtering use Water enters outside filter core, and impurity particle is filtered to device interior or is attached on filter core；In backwash and dosing program use Admission outside-exit type, backwash clear water or medicament enter inside filter core.
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| CN201710822531.2A CN107376647B (en) | 2017-09-13 | 2017-09-13 | Open circulating water side filtering device and circulating water treatment method using same |
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| CN201710822531.2A CN107376647B (en) | 2017-09-13 | 2017-09-13 | Open circulating water side filtering device and circulating water treatment method using same |
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| CN107376647B CN107376647B (en) | 2023-07-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109876530A (en) * | 2019-03-29 | 2019-06-14 | 深圳市优美环境治理有限公司 | The chemical cleaning online device and chemical cleaning online method of filtration system |
| CN112108464A (en) * | 2020-07-22 | 2020-12-22 | 岭东核电有限公司 | Chemical cleaning device and method |
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| CN103990313A (en) * | 2014-06-06 | 2014-08-20 | 张家港保税区金品化工机械设备有限公司 | Low-permeability oilfield produced water filtering system and backwashing process thereof |
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| CN107376647B (en) | 2023-07-25 |
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