CN106458647A - Operating method for regeneration type ion exchange device - Google Patents
Operating method for regeneration type ion exchange device Download PDFInfo
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- CN106458647A CN106458647A CN201480079689.XA CN201480079689A CN106458647A CN 106458647 A CN106458647 A CN 106458647A CN 201480079689 A CN201480079689 A CN 201480079689A CN 106458647 A CN106458647 A CN 106458647A
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- Prior art keywords
- water
- exchange resin
- water flowing
- ion exchange
- interchange unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
Abstract
Provided is a simple and economical operating method for a regeneration type ion exchange device that carries out an operating scheme of interrupting operation of ascending circulation of raw water and thereafter restarting the operation, said operating method not requiring the installation of a special means in the regeneration type ion exchange device, being simple to operate, and not taking time. The operating method for a regeneration type ion exchange device, which accommodates an ion exchange resin (4) within a container (1), has a raw water flow step for making raw water flow in an ascending current in the regeneration type ion exchange device and water flow stopping step for stopping the raw water flow in the regeneration type ion exchange device. The method comprises a force applying water flow step that makes a descending water flow for pressing the ion exchange resin (4) downward in the container after the raw water flow step is completed and before the water flow stopping step.
Description
Technical field
The present invention relates to a kind of container contents receive ion exchange resin regenerative ion interchange unit operating
Method, especially, is related to a kind of make raw water in water acquisition by the fortune to the regenerative ion interchange unit of water flowing in the way of upper
Shifting method.Specifically, the present invention relates to stopping the improvement of the operation during water acquisition of this regenerative ion interchange unit.
Background technology
There is water flowing in regeneration of ion-exchange resin type ion interchange unit as making raw water receive in container contents, obtain everywhere
The method of operation of the regenerative ion interchange unit of reason water, exists and makes raw water by the circulation water side upwards to water flowing in the way of upper
Formula.
Fig. 2 a is the schematic longitudinal sectional of the composition representing this regenerative ion interchange unit, and cylindric container 1 is
With cylinder axis direction as above-below direction (particularly vertical direction) and arrange.Upper and lower in this container 1 is respectively provided with
There is the filter membrane 2,3 of perforated plate-like, between this filter membrane 2,3, accommodate ion exchange resin 4.For ion exchange resin 4, by
In using ion exchange resin 4, resin itself expands, and its volume increases, and therefore, generally estimates the increase of this volume, with institute
It is contained in container 1 in the state of the space (free space portion F) stating the residual specified altitude h of the top in container 1.
When the raw water supply mouth 5 of this ion exchange resin makes raw water by water flowing to upper in the way of, ion exchange resin 4
Because this hydraulic pressure is pushed, as shown in Figure 2 b, become the fixed bed state of the filter membrane 2 being pressed into upside, and in this case
Carry out water acquisition.The flow export 6 processing water from container top flows out.When stopping making raw water to water flowing in container 1, by ion exchange
The power that resin 4 above pushes away disappears, and therefore, the ion exchange resin 4 forming described fixed bed sinks to downside filter membrane 3 side in container 1
Shallow lake falls, and recovers the receiving state to water flowing, i.e. the state of Fig. 2 a.
So, when ion exchange resin 4 precipitates in container 1 and falls, as shown in Figure 2 c, form ion exchange resin
Avalanche portion 4a.This avalanche portion 4a is lentamente moved upward, and finally reaches the ion exchange resin 4 of topmost, terminates ion
Falling of exchanger resin 4, recovers to the state of Fig. 2 a.In the avalanche portion 4a of this ion exchange resin, ion exchange resin bead
Son mixes while falling.Therefore, the ion exchange resin rupture positioned at the next side of the filling bed of ion exchange resin 4
(break), but under the ion exchange resin positioned at upper side still uncracked operating midway state, stop raw water water flowing, stop
Only during water acquisition, the broken resin of the next side and upper side unbroken mixed with resin, when starting again at water acquisition operating next time,
Sometimes water quality treatment can deteriorate.
Therefore, for by upper water acquisition, the regenerative ion that operates to (counter-current regeneration mode) in the way of dirty regeneration
For switch, when by flowing water starts water acquisition upwards when, must continuous water flowing terminating (regeneration of next time) to water acquisition.
Therefore, situation about reducing in the consumption of pure water and ultra-pure water etc. preferably temporarily ceases regenerative ion interchange unit
In the case of, continuously operate due to needing to be circulated operating, or need to carry out medicine regeneration, so many times can be expended
And cost.
As described in the page 2 upper right hurdle of Japanese Unexamined Patent Application 51-77583 publication, as by liquid logical in the way of upper
When suppression ion exchange resin liquidation mechanism it is known that while to water flowing in the way of upper, above resin bed
Import force water (equilibrium water, to dirty), prevent the method that resin bed is kicked up.However, in the method, due to upper
While mode water flowing, import force water above resin bed, so the adjustment of each flow, pressure becomes complicated.The method is not
Suppression is because stopping the disorder of the resin bed caused by natural sedimentation during water flowing.
In 0034,0035 paragraph of Japanese Unexamined Patent Publication 2003-220387 publication, describe by the mobile adjustment machine of setting
Structure, reduces the speed that ion exchange resin when terminating water flowing falls to the bottom of described resin cartridge, thus tackling above-mentioned problem.
However, the mode arranging this moving adjusting mechanism needs in addition to prepare, arranges this mechanism, in large-scale plant, especially tower
Internal structure complicates, and becomes the main cause of cost increase.
Prior art literature
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Application 51-77583 publication；
Patent documentation 2：Japanese Unexamined Patent Publication 2003-220387 publication.
Content of the invention
Invent problem to be solved
As described previously for by water flowing in the way of upper and for the regenerative ion interchange unit of water acquisition, when adopting
When water midway temporarily ceases, when fixed bed falls, amberlite lipid layer is disorderly, when starting again at water acquisition, not necessarily can
Maintain the water quality before cutting off the water.Therefore, though by water flowing in the way of upper and the regenerative ion interchange unit of water acquisition is in water acquisition
Midway is when temporarily ceasing it is also necessary to continuous running.
It is an object of the invention to, provide a kind of make raw water by water flowing in the way of upper and the method for water acquisition, described side
Method is by interrupting water acquisition operating, then starts again at the operating of the regenerative ion interchange unit of drive manner of water acquisition operating
Method, methods described does not need to arrange special mechanism, processing ease in regenerative ion interchange unit, does not expend the time,
It is the method for operation of economic regenerative ion interchange unit.
The technical scheme of solve problem
The method of operation of regenerative ion interchange unit ion exchange resin being contained in container of the present invention, tool
Have：Raw water water flowing operation, makes raw water by water flowing in the way of upper in this regenerative ion interchange unit；Water flowing stops work
Sequence, stops making raw water to this regenerative ion interchange unit water flowing；And, exert a force water water flowing operation, in this raw water water flowing operation
After end, before water flowing stops operation, make to be used in this embodiment pressing downwards amberlite lipid layer and making described ion
The force water of exchange resin layer movement is with defluent mode water flowing.
As force water, preferably use the deionized water obtaining from this regenerative ion interchange unit.
The height h in free space (Freeboard) portion of described regenerative ion interchange unit is preferably 10～200mm.
LV (linear speed, Linear Velocity) during the water flowing of described force water is preferably 20～150m/h.Preferably
Make force water water flowing 10～60 seconds.
Invention effect
The present invention by with to operating in the regenerative ion interchange unit carrying out water acquisition by way of upper, in water acquisition
Way stops the situation of water acquisition, stop raw water water flowing at the end of water acquisition etc. in the case of, be used in immediately after stopping water flowing by from
The force water that sub-exchange resin layer presses downwards is with defluent mode water flowing.So, by making force water water flowing, so that
Amberlite lipid layer within device is not disorderly, and moves downwards in container, and ion exchange resin is able to maintain that fixation
Bed.Therefore, even if water acquisition (being again started up), afterwards it is also possible to equal water quality before guaranteeing and stopping, can stably operating again.
Even if it is also possible to expeditiously be regenerated in the case that the medicine carrying out ion exchange resin regenerates, medicine can be cut down
Amount.
Brief description
Fig. 1 a, Fig. 1 b, Fig. 1 c are the explanatory diagrams of the inventive method.
Fig. 2 a, Fig. 2 b, Fig. 2 c are the explanatory diagrams of existing example.
Fig. 3 is the profile of single-tower muiti-bed formula regenerative ion interchange unit.
Fig. 4 is the profile of single-tower muiti-bed formula regenerative ion interchange unit.
Fig. 5 is the profile of single-tower muiti-bed formula regenerative ion interchange unit.
Specific embodiment
Hereinafter, illustrate in greater detail the present invention with reference to Fig. 1 a～Fig. 1 c.Ion exchange resin 4 is being contained in appearance by the present invention
In the regenerative ion interchange unit between filter membrane 2,3 in device 1, as shown in Figure 1a, make raw water by water flowing in the way of upper and
Carry out water acquisition.When stopping the water of circulation upwards of raw water, as shown in Figure 1 b, make force water immediately after stopping this water that circulates upwards
With defluent mode water flowing in container 1, with the layer (becoming fixed bed state) of ion exchange resin 4 for overall integratedly to
Lower section is mobile, as illustrated in figure 1 c, is connected to the filter membrane 3 of downside the layer of ion exchange resin 4 being maintained fixed bed state going to the bottom.
When the layer of this ion exchange resin 4 moves downwards, do not formed as described Fig. 2 b in the layer of ion exchange resin 4
Avalanche portion 4a, do not produce the mixing of ion exchange resin particles.Therefore, raw water starts again to regenerative ion interchange unit
When to water flowing in the way of upper, starting again at post processing water quality becomes good immediately.
In addition, in the present invention, as illustrated in figure 1 c, can carry out after the layer of ion exchange resin 4 terminates to move downwards
Regeneration of ion-exchange resin, if remaining sufficient ion exchange capacity in ion exchange resin, do not regenerated and again
Secondary beginning raw water water flowing.
As shown in Figure 2 a, when the height h of free space portion F is excessive, amberlite lipid layer becomes easy disorder.Ion
The precipitability of exchanger resin is different because of proportion, it is therefore preferable that considering proportion to set the height h of free space portion F.Cloudy
The proportion of ion exchange resin is usually 1.0～1.2, and the proportion of cation exchange resin is usually 1.2～1.7.Free space
The height h in portion is preferably 10～200mm, more preferably 10～100mm, particularly preferably 10～50mm.Due to cation exchange
Resin, than anion exchange resin weight, easily precipitates, so when excessively broadly taking free space portion, becoming easily to mix during precipitation
Close.Therefore, compared with the situation of filling anion exchange resin, the situation of filling cation exchange resin more preferably reduces freedom
The height of spatial portion.
During the height h in decision free space portion, more preferably consider the height of amberlite lipid layer.Amberlite lipid layer
Height be usually 500～2000mm scope, the ratio h/H of the height h in the free space portion and height H of amberlite lipid layer
It is preferably 1/50～1/2.5, more preferably 1/20～1/10.
Make force water with the LV (linear speed, Linear Velocity) during defluent mode water flowing too small when it is impossible to
Amberlite lipid layer is made integratedly to move, it is therefore preferable that being more than 20m/h.If this LV is excessive, amberlite lipid layer
Above neighbouring ion exchange resin disorderly, therefore, LV is preferably below 150m/h.Therefore, LV is preferably 20～150m/h,
Particularly preferably 30～60m/h.
For the downward circulation water of force water, preferably after the water of circulation upwards stopping raw water, immediately begin to water flowing,
Specifically, preferably after the water of circulation upwards stopping raw water immediately, particularly started to exert a force within 1 second water to dirty
Water flowing.The water flowing persistent period of force water, preferably 10～60 seconds about.
Regenerative ion interchange unit can be in single-tower muiti-bed formula, multitower multibed type, multitower single table, single table etc.
Any device.If single-tower muiti-bed formula, then can be using the device of the structure having as shown in Fig. 3～Fig. 5.
Fig. 3～Fig. 5 is the profilograph of single column double bed type heat regenerative ion interchange unit, when Fig. 3 represents water acquisition, Fig. 4 table
When showing regeneration, when Fig. 5 represents force water water flowing.Upper room 20 in the tower body 41 of this regenerative ion interchange unit 40 is filled with
Anion (Anion) exchanger resin 21, is filled with cation (Cation) exchanger resin 31 in lower room 30, is formed in tower body 41
Double bed.
The shell of the tower body 41 of regenerative ion interchange unit 40 is by the cylindrical portion with cylinder axis direction as vertical direction
The runner plate portion 41c of 41a, the runner plate portion 41b at top and bottom is constituted.Runner plate portion 41b is bent upwards into convex, runner plate portion 41c to
Under bend to convex.
In this tower body 41, upper room 20 and the 30 liang of rooms in lower room are divided into by the dividing plate 42 hiding aqueouss.In this embodiment, every
Plate 42 is not allow the metal that water passes through or plastic material completely, is bowed downward to convex in the same manner as runner plate portion 41c.
The circumference of dividing plate 42 is the inner peripheral surface being water-tightly incorporated into cylindrical portion 41a by welding etc..
Top in upper room 20 is configured with the first collection water distribution part 44, top supply and discharge pipe arrangement 43 and this first collection water distribution portion
Part 44 connects.Bottom in upper room 20 is provided with the second collection water distribution part 46, the first connection pipe arrangement 45 and this collection water distribution part
46 connections.Top in lower room 30 is provided with the 3rd collection water distribution part 49, the second connection pipe arrangement 48 and this collection water distribution part 49
Connect.Connection pipe arrangement 45,48 is connected by third connecting pipe arrangement 51, and this connection pipe arrangement 51 is provided with valve 52.
It is provided with the valve 47,50 of the supply and discharge mechanism as regenerated liquid in the terminal part of connection pipe arrangement 45,48.In lower room 30
Bottom is provided with the 4th collection water distribution part 54, and bottom supply and discharge pipe arrangement 53 is arranged at this collection water distribution part 54.
Major part in upper room 20 is filled with anion exchange resin 21, fills in the upside of this anion exchange resin 21
It is filled with granular inactive resin 22.First collection water distribution part 44 is embedded in this inactive resin 22.
Major part in lower room 30 is filled with cation exchange resin 31, fills in the upside of this cation exchange resin 31
It is filled with granular inactive resin 32.3rd collection water distribution part 49 is embedded in this inactive resin 32.As inactive resin,
It is less than polyacrylonitrile based resin of ion exchange resin etc. etc. using proportion.The particle diameter of inactive resin is preferably and ion exchange
Resin equal extent.
As collection water distribution part 44,46,49,54, can using the water collection sheet used in existing ion interchange unit,
Extend into and coarse filter of multiple slits etc. is set in radial pipe arrangement.For example, when the size of ion exchange resin is about 0.4mm
During left and right, preferably use, as coarse filter, the coarse filter that slit width is about 0.2mm.Collection water distribution part 44,46,49,54 has
Along runner plate portion 41b, dividing plate 42, runner plate portion 41c shape, make along runner plate portion 41b, dividing plate 42, runner plate portion 41c invalid sky
Between (dead space) become less.
Flow process during production (water acquisition) of the deionized water using this ion interchange unit is shown in Fig. 3.In this feelings
Under condition, open valve 52, shutoff valve 47,50, from bottom supply and discharge pipe arrangement 53 supply raw water (processed water).This raw water is to collect water distribution portion
Part 54, cation exchange resin 31, inactive resin 32, collection water distribution part 49, connection pipe arrangement 48,52,45, collection water distribution part
46th, the order circulation of anion exchange resin 21, inactive resin 22, collection water distribution part 44, top supply and discharge pipe arrangement 43, as place
Reason water (deionized water) is removed.
By making raw water from collection water distribution part 54,46 to flow to by way of upper, so that cation exchange resin 31
Float with anion exchange resin 21, be pressed into respectively below the layer of inactive resin 32,22.When stopping this water acquisition, such as
Shown in Fig. 5, shutoff valve 52 immediately after stopping raw water water flowing, open valve 47,50, make force water from each collection water distribution part 49,44
With defluent mode water flowing, and discharge force draining from collection water distribution part 54,46, make cation exchange resin 31 and anion
The layer (becoming fixed bed state) of exchanger resin 21 integratedly moves downwards respectively as overall, cation exchange resin 31
Bottom in runner plate portion 41c, anion exchange resin 21 bottom in dividing plate 42.Thus, in cation exchange resin 31 and nonactive tree
Form free space respectively between fat 32 and between anion exchange resin 21 and inactive resin 22.
When cation exchange resin 31 and anion exchange resin 21 move downwards, in each cation exchange tree
The layer of the layer of fat 31 and anion exchange resin 21 does not form avalanche portion as described Fig. 2 b.Can also be by opening valve
52, shutoff valve 47,50, make force water from collection water distribution part 44 with defluent mode water flowing, discharge from bottom supply and discharge pipe arrangement 53
Mode, make force water one cross in upper room and the water flowing of lower room.
When regenerating to cation exchange resin 31 and anion exchange resin 21, as shown in figure 4, shutoff valve 52,
Open valve 47,50, from aqueous slkalis such as top supply and discharge pipe arrangement 43 supply NaOH, and supply HCl, H from third connecting pipe arrangement 482SO4
Deng acid solution.Aqueous slkali is to collect water distribution part 44, inactive resin 22, anion exchange resin 21, collection water distribution part 46, connection
Pipe arrangement 45, the sequential flowing of valve 47, flow out as regenerative wastewater (alkali), thus regenerate anion exchange resin 21.Acid solution
With collect water distribution part 49, inactive resin 32, cation exchange resin 31, collection water distribution part 54, bottom supply and discharge pipe arrangement 53 suitable
Sequence flows, and flows out as regenerative wastewater is (sour), thus, cation exchange resin 31 is regenerated.
After regeneration ending, make pure water water flowing replace HCl solution, the NaOH solution of Fig. 4 respectively, rinse each path and tree
After fat, with pure water, upper room and lower room are individually cleaned in defluent mode as needed, while discharge cleaning draining, so
Make the pure water circulation stipulated time afterwards between upper room 20 and lower room 30, then return to water acquisition operation.When carrying out this regeneration, cloudy
Ion exchange resin 21 and cation exchange resin 31 do not mix completely.The aqueous slkali of regeneration flows into lower room 30, acid solution mixes
The situation entering upper room 20 will not occur completely, entirely prevents inverse regeneration.Can carry out simultaneously anion exchange resin 21 and sun from
The regeneration of sub-exchange resin 31, significantly shortens the recovery time.
For this ion interchange unit, tower body 41 inner region is divided into by two upper and lower chambers, tower by a piece of dividing plate 42
The height of body is low, and installation space is also little.The pipe arrangement 45,51,48 of the upper room 20 of connection and lower room 30 can also be shortened.
In this ion interchange unit, along runner plate portion 41b, dividing plate 42, runner plate portion 41c setting collection water distribution part 54,46,
49th, 54, prevent the local retention of water.
In this ion interchange unit, it is filled with inactive resin 22,32 on the top of upper room 20 and lower room 30, prevents the moon
Ion exchange resin 21 and the flowing of cation exchange resin 31, in water acquisition and during regeneration, liquid and anion exchange resin
21 equably contact with cation exchange resin 31, obtain the deionized water of high water quality, and are sufficiently carried out regenerating.
In Fig. 3～Fig. 5, in upper room 20, accommodate anion exchange resin, lower room 30 accommodates cation and hands over
Change resin but it is also possible to arrange on the contrary.In Fig. 3～Fig. 5, upper room 20 is connected by pipe arrangement 45,51,48 with lower room 30, but
As long as unrolling in the outside of tower body 41, it is not limited to this.Additionally, in Fig. 3～Fig. 5, using three valves 47,50,52,
But stream switching can also be carried out using two three-way valves.
The force water that downwards circulation water is used can be this regenerative ion interchange unit process water or after
Any one in the process water of section, furthermore it is preferred that using the water processing water or there is the purity being equivalent to process water.
Force water to down-flow water can be separately simultaneously in leading portion tower, back segment tower (parallel water flowing) water flowing, or
Person's any means to the method for leading portion tower for the direct water flowing in back segment tower in series, but be preferably individually leading portion tower,
The parallel water flowing of back segment tower.
Embodiment
[embodiment 1]
In regenerative ion interchange unit shown in Fig. 3, by anion exchange in the way of making height become 1000mm
The epimere of the container in internal diameter 600mm for the resin fill, and by cation exchange resin filling in the way of making height become 500mm
In hypomere, constitute single-tower muiti-bed formula regenerative ion interchange unit.The respective heights h in free space portion is set as 200mm.
Strong-base anion-exchange resin：Dow MONOSPHERE 550A (OH) proportion 1.1
Storng-acid cation exchange resin：Dow MONOSPHERE 650C (H) proportion 1.4
Make the raw water of ratio resistance 0.1M Ω cm (conductivity 10 μ S/cm) by the way of upper with 20m3/ h is to this regeneration
Type ion interchange unit (exchange resin tower) water flowing.From water flowing begin to pass through 3 little constantly, stop upwards circulate water, exist side by side
Even if force water is in defluent mode with 10m3/ h (LV=35m/h) water flowing 15 seconds, then becomes the stopping water flowing shape of 1 hour
State.In this, as 1 circulation, repeat plural number time circulation.The ratio resistance of water is managed over time and water acquisition scale in strength
It is shown in table 1.In addition, water acquisition amount refers to the total process water the moment becoming below 18M Ω cm to the ratio resistance processing water
Amount.
As shown in table 1, in embodiment 1, till water flowing begins to pass through 77 hours, the ratio resistance processing water becomes 18.2M
Ω cm, through 84 little constantly be 18.0M Ω cm.This 84 hours total water acquisition amount is 1440L.
[comparative example 1]
Except not carrying out exerting a force after stopping raw water water flowing, water circulates downwards in addition to water, carries out same as Example 1ly again
The operating of raw type ion interchange unit.By the ratio resistance processing water, over time and water acquisition scale is shown in table 1.
As shown in table 1, in comparative example 1, till water flowing begins to pass through 28 hours, the ratio resistance processing water becomes
18.2M Ω cm, but through 35 little constantly, process water ratio resistance be reduced to 15.5M Ω cm.Therefore, total water acquisition amount is
570L.
[comparative example 2]
Except not stopping raw water water flowing and in addition to continuous water flowing, making regenerative ion interchange unit same as Example 1ly
Operating.By the ratio resistance processing water, over time and water acquisition scale is shown in table 1.
In comparative example 2, same as Example 1, till water flowing begins to pass through 77 hours, the ratio resistance processing water is
18.2M Ω cm, through 84 little constantly be 18.0M Ω cm.This 84 hours total water acquisition amount is 1440L.
[comparative example 3]
In addition to the height h by free space portion is set as 300mm, so that regenerative ion is handed over same as Example 1ly
Changing device operates.By the ratio resistance processing water, over time and water acquisition scale is shown in table 1.
In comparative example 3, start to 42 hours from water flowing, the ratio resistance processing water becomes 18.2M Ω cm, but
Through 49 little constantly, process water ratio resistance be reduced to 17.5M Ω cm.Therefore, total water acquisition amount is 680L.
[table 1]
As shown in table 1, according to embodiment 1, even if the water flowing of repeated interruptions raw water, water acquisition amount is also many.The water acquisition of embodiment 1
Amount, identical with the comparative example 2 continuously running, find to make full use of the exchange capacity of ion exchange resin.
The water acquisition amount of comparative example 3 is fewer than embodiment 1.The water acquisition amount of comparative example 1 is fewer than embodiment further.
From above example can it is clear that, according to the present invention, even if repeating to stop the water flowing of raw water in water acquisition midway,
Can also ensure that the water acquisition amount equal with the situation of continuous water flowing.
Be described in detail by the present invention using ad hoc fashion, but to those skilled in the art can it is clear that, not
Various changes can be carried out in the case of departing from the intent of the present invention and scope.
Based on subject application goes out to be willing to 2013-092659 by the Japanese Patent that on April 25th, 2013 files an application, here will
Full content is incorporated herein.
Claims (5)
1. a kind of method of operation of regenerative ion interchange unit, ion exchange resin is contained in container for it, and its feature exists
In having：
Raw water water flowing operation, makes raw water by water flowing in the way of upper in this regenerative ion interchange unit,
And, water flowing stops operation, stops making raw water to this regenerative ion interchange unit water flowing；
And, after this raw water water flowing operation terminates, before water flowing stops operation, there is force water water flowing operation, described force water
Water flowing operation makes to be used in this embodiment amberlite lipid layer presses downwards and makes described amberlite lipid layer move
Force water with defluent mode water flowing.
2. the method for operation of regenerative ion interchange unit as claimed in claim 1 is it is characterised in that as described force
Water, using the deionized water obtaining from described regenerative ion interchange unit.
3. the method for operation of regenerative ion interchange unit as claimed in claim 1 is it is characterised in that described regenerative ion
The height in the free space portion of switch is 10～200mm.
4. regenerative ion interchange unit as claimed in claim 1 method of operation it is characterised in that described force water logical
LV during water is 20～150m/h.
5. the method for operation of the regenerative ion interchange unit as any one of Claims 1-4 is it is characterised in that make
Described force water water flowing 10～60 seconds.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/065309 WO2015189908A1 (en) | 2014-06-10 | 2014-06-10 | Operating method for regeneration type ion exchange device |
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| CN106458647A true CN106458647A (en) | 2017-02-22 |
| CN106458647B CN106458647B (en) | 2020-07-24 |
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| KR (1) | KR102203041B1 (en) |
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| JPS5177583A (en) | 1974-12-28 | 1976-07-05 | Kurita Water Ind Ltd | |
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| JP5720364B2 (en) * | 2011-03-29 | 2015-05-20 | 栗田工業株式会社 | Ion exchanger |
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- 2014-06-10 KR KR1020167034022A patent/KR102203041B1/en active IP Right Grant
- 2014-06-10 WO PCT/JP2014/065309 patent/WO2015189908A1/en active Application Filing
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| JP2001232362A (en) * | 2000-02-28 | 2001-08-28 | Miura Co Ltd | Operation method of water softener |
| CN1805925A (en) * | 2004-04-22 | 2006-07-19 | 旭电化工业株式会社 | Process for purification of aqueous acid solutions |
| CN201124095Y (en) * | 2007-10-24 | 2008-10-01 | 何新华 | Full chamber fixed bed counter-current regeneration ion exchanging apparatus |
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| WO2014014665A1 (en) * | 2012-07-20 | 2014-01-23 | Dow Global Technologies Llc | Method for operating a counter-flow ion exchange system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102203041B1 (en) | 2021-01-13 |
| KR20170016844A (en) | 2017-02-14 |
| WO2015189908A1 (en) | 2015-12-17 |
| CN106458647B (en) | 2020-07-24 |
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