CN106396135A - Water softening apparatus and water softening method - Google Patents
Water softening apparatus and water softening method Download PDFInfo
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- CN106396135A CN106396135A CN201610852674.3A CN201610852674A CN106396135A CN 106396135 A CN106396135 A CN 106396135A CN 201610852674 A CN201610852674 A CN 201610852674A CN 106396135 A CN106396135 A CN 106396135A
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- water tank
- demineralization
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 218
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002244 precipitate Substances 0.000 claims abstract description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 16
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000008233 hard water Substances 0.000 claims abstract description 14
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 14
- 239000011575 calcium Substances 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 11
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 10
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 8
- 238000007872 degassing Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 7
- 238000005115 demineralization Methods 0.000 claims description 43
- 230000002328 demineralizing effect Effects 0.000 claims description 32
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 9
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000037452 priming Effects 0.000 claims description 3
- 239000002990 reinforced plastic Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000009849 vacuum degassing Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 230000008569 process Effects 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 7
- 239000003814 drug Substances 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000001728 nano-filtration Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001669 calcium Chemical class 0.000 description 1
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 1
- FYHXNYLLNIKZMR-UHFFFAOYSA-N calcium;carbonic acid Chemical compound [Ca].OC(O)=O FYHXNYLLNIKZMR-UHFFFAOYSA-N 0.000 description 1
- 239000003729 cation exchange resin Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution 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
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses a water softening apparatus, comprising a softening water tank, a water pump and a degassing unit; the softening water tank is a full-closed water tank, and the water pump and the degassing unit are disposed on a circulation pipeline communicated with an inner cavity of the softening water tank. The water softening apparatus also comprises an online monitor to monitor water hardness of hard water to be softened in real time and an online filter to further filter and remove precipitates. A water softening method is also disclosed. CO2 and O2 gases in the hard water to be softened are removed in the closed circulation pipeline, calcium carbonate and magnesium carbonate precipitates are formed in the hard water to be softened, the precipitates are filtered and removed by the degassing unit and the filter, the concentration of calcium and magnesium ions in the hard water to be softened is decreased, and the water is softened. The method is a purely physical water softening method, is free of secondary contaminations such as agent sludge, may soften water with little electricity consumed, and is green and free of regeneration; in addition, it is possible herein to implement adjustable control of water hardness through real-time monitoring of the online monitor.
Description
Technical field
The present invention relates to water demineralization technical field, more particularly to a kind of water demineralization device and water demineralization method.
Background technology
Various salts are contained, these salts are dissolved as cation and anion, mainly have Ca in natural water2+、Mg2+、Na+With
HC03-、SO4 2-、Cl-Deng.Water containing these salts, during heating evaporation concentrates (as boiler feed water), the Ca in water2 +、Mg2+Plasma constantly becomes indissoluble material to separate out with anion bindings some in water, and generates incrustation scale (being commonly called as scale), attached
On the heating surface of boiler.Because the heat conductivility of incrustation scale is very poor, thus hindering heat exchange, greatly reduce the thermal effect of boiler
Rate, had not only wasted fuel but also easy burn-out part, and had jeopardized safety, caused adverse consequencess.In order to eliminate or reduce these harm it is necessary to
The hardness components that can form incrustation scale in water, such as calcium, magnesium ion, also have other high volence metal ions such as ferrum, aluminum, manganese etc., give
Remove.It is therefore desirable to carry out water correction process.
The main method of water demineralization includes at present:
1) ion exchange:Using specific cation exchange resin, with sodium ion, the calcium ions and magnesium ions in water are displaced
Come, because the dissolubility of sodium salt is very high, it is prevented that cause the situation that incrustation scale generates with the rising of temperature.This method
It is standard mode the most frequently used at present.Major advantage is:Effect stability is accurate, and hardness of water can be down to 0 by technical maturity.
But the method in running it is often necessary to backwash and regeneration are carried out to ion exchange resin, to recover the energy of adsorption of resin
Power it is therefore desirable to substantial amounts of salt and softened water, in backwash water due to the salt containing high concentration it is impossible to using and arbitrarily discharge,
Very big secondary waste can be caused, also bring along the problem of water pollution.
2) membrane separation process:The membrane separation technique being usually used in water process has:Microfiltration (MF), nanofiltration (NF), ultrafiltration (UF), electric osmose
Analysis (ED) and reverse osmosiss (RO).The feature of this method is that effect is substantially stablized, and the water after process is applied widely;But
Intake pressure is had higher requirements, equipment investment, operating cost are all higher.
3) medicament tenderizer:The medicament tenderizer of water is to amass principle according to content, adds suitable medicine as needed in water
Agent, is allowed to react generation CaCO with calcium, magnesium ion3With Mg (OH)2Insoluble precipitate.It is soft that medicament tenderizer includes Calx soda
Change method, lime softening method, caustic soda tenderizer etc., are wherein softened the most commonly used with Calx.This technology maturation, wide material sources, and
And cheap it is adaptable to raw water non-carbonate hardness is relatively low, carbonate hardness is higher situation.But this method also has very
Many shortcomings, because dosage used is very high, inevitably produce substantial amounts of mud, and also need to large-area Factory Building to prepare
With store these raw materials, if raw material absorbs the CO of in the air2, cause hardness clearance unstable.
4) electromagnetic method:Using the characteristic to change ion in water plus certain electric field or magnetic field, thus changing carbonic acid
Physical characteristics when speed that calcium (magnesium carbonate) deposits and deposition, to stop the formation of hard scale.It is characterized in:Equipment investment
Little, easy for installation, operating cost is low;But being not sufficiently stable property of effect, does not have unified criterion, and due to major function
It is only the physical property affecting a range of incrustation scale, so the use time of water, distance have certain limitation after processing.
5) method for dosing medicine:Xiang Shuizhong adds special antisludging agent, thus it is possible to vary the spy that calcium ions and magnesium ions are combined with carbanion
Property, so that incrustation scale can not separate out, deposit.The feature of this method is:Disposably less input, wide adaptability;But the water yield is relatively
High expensive is run, due to adding chemical substance, so the application of water is very limited when big.
All in all, existing various sofening treatment method respectively has feature, and sofening treatment is affected by many factors, conventional dose
Tenderizer pretreatment is simple, but effluent quality is bad, and operational management is loaded down with trivial details, produces substantial amounts of garbage, and treatability is poor, and to ring
Very big pollution is caused in border.Ion exchange softening method is strict to pre-processing requirements, and expense is also higher.And compared with softening with Calx,
The building expense of film softening process and running cost are higher.Therefore found that a kind of investment is low, operating cost is low, simple to operate, no time
The new water demineralization device of raw pollution and water demineralization method, are particularly important in water demineralization process field.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of structure simple water demineralization device so as to operating cost
Low, and can achieve that water hardness is adjustably controlled, thus overcoming the shortcomings of existing water demineralization device.
For solving above-mentioned technical problem, the present invention provides a kind of water demineralization device, including softening water tank, water pump and degassing
Machine, described softening water tank is full sealed cistern water, and described water pump and degasser are arranged on and the following of described softening water tank inner space
On endless tube road.
As a modification of the present invention, also include treating the on-line monitoring of water hardness in softening of water for real-time monitoring
Instrument, described on-line computing model adopts dissolved oxygen monitor or calcium hardness instrument, and it is arranged on the wall of described softening water tank side or described
On circulating line.
Improve further, described softening water tank is anti-corrosion using doing the concrete basin of Anti-seeping technology, Glass fabre reinforced plastic water tank, carbon steel
Water tank, stainless steel water tank or PE water tank.
Improve further, described water pump adopts centrifugal pump, plunger displacement pump or self priming pump, described degasser adopts vacuum degassing machine
Or film degassing equipment.
Improve further, be additionally included in line filter, described pot strainer is arranged at following of described degasser water side
On endless tube road.
Improve further, described pot strainer adopts cartridge filter, flocculation more medium filter or disc filter.
Improve further, also include the hard water water supply system for treating softening of water for the supply of described softening water tank, described
Hard water water supply system is the automatic makeup Water System of ball-cock assembly or the automatic makeup Water System of liquid level type.
Present invention technical problem also to be solved is to provide a kind of easy to operate, energy-conserving and environment-protective water demineralization method, makes
Its operating cost is low, and can achieve that water hardness is adjustably controlled, thus overcoming the shortcomings of existing water demineralization method.
For solving above-mentioned technical problem, the present invention provides a kind of water demineralization method, and methods described is:Circulation in closing
In pipeline, abjection is in the CO treating in softening of water of recurrent state2And O2Gas, make described in treat in softening of water produce carbonic acid
Calcium, magnesium carbonate precipitate, discharge described precipitate, treat calcium ions and magnesium ions concentration value in softening of water, realize water quality soft described in reduction
Change.
Improve further, the circulating line of described closing is provided with for making to treat that softening of water is real in described circulating line
The water pump that now circulates, treat CO in softening of water for abjection2And O2The degasser of gas and be used for filtering described sedimentary filtration
Device.
Improve further, the circulating line of described closing is additionally provided with for treating water quality in softening of water described in real-time monitoring
The on-line computing model of hardness.
After such design, the present invention at least has advantages below:
The present invention treats the CO in softening of water using abjection in the circulating line of closing2And O2Gas, makes this wait to soften firmly
Water forms Calcium Carbonate, magnesium carbonate precipitate, and after this precipitate is filtered and discharges by dewaterer or filter, this treats softening of water
In calcium ions and magnesium ions concentration reduce, so that water quality is softened.
The present invention is that pure physics water quality softening method, the no secondary pollution such as medicament mud drive it is only necessary to consume a small amount of electric energy
Water pump and degasser work, you can complete water demineralization work, environmental protection, need not regenerate.Soften hardness of water can root simultaneously
Automatically set according to water demand.
The present invention passes through to arrange on-line computing model real-time monitoring, can provide the soft of corresponding hardness according to difference aqueous nature
Change water, being adjustably controlled of achievable water hardness, softening process is simple, and operating cost is low.
Brief description
Above-mentioned be only technical solution of the present invention general introduction, in order to better understand the technological means of the present invention, below
In conjunction with accompanying drawing, the present invention is described in further detail with specific embodiment.
Fig. 1 is the structural representation of water demineralization device of the present invention.
Specific embodiment
Referring to the drawings shown in 1, water demineralization device of the present invention includes softening water tank 1, water pump 3 and degasser 4, this softened water
Case 1 is full sealed cistern water, this water pump 3 and degasser 4 be arranged on the circulating line of this softening water tank 1 inner space on.
In the present embodiment, softening water tank 1 is using doing the concrete basin of Anti-seeping technology, Glass fabre reinforced plastic water tank, the anti-corrosion water tank of carbon steel
Or stainless steel water tank, PE water tank etc., for softened water after softening of water and softening for the storage.
This water pump 3 adopts the existing pump housings such as centrifugal pump, plunger displacement pump or self priming pump, for waiting in softening water tank 1 to soften firmly
Water pumps in degasser 4, and the liquid after making by degasser 4 reenters in softening water tank 1, is again introduced into cyclic softening mistake
Journey.
This degasser 4 adopts vacuum degassing machine or film degassing equipment, treats the CO in softening of water for abjection2And O2, so that
This treats to produce the precipitate such as Calcium Carbonate, magnesium carbonate in softening of water, and this precipitate can be discharged by this degasser 4 bottom, then make
This calcium ions and magnesium ions concentration treated in softening of water reduces, and water quality is softened.
For softening efficiency of increasing water quality further, this water demineralization device is additionally included in line filter 5, this on-line filtration
Device 5 is arranged on the circulating line of degasser 4 water side, for further filter out this treat in softening of water produce Calcium Carbonate,
The precipitate such as magnesium carbonate.This pot strainer 5 can be existing using cartridge filter, flocculation more medium filter or disc filter etc.
Some defecators.
The operation principle of water demineralization device of the present invention is:The CO in softening of water will be treated using degasser2And O2Abjection,
Make to treat to accelerate in softening of water following chemical reaction:
Ca(HCO3)2=CaCO3↓+H2O+CO2↑,
Mg(HCO3)2=MgCO3↓+H2O+CO2↑,
Generate Calcium Carbonate, magnesium carbonate precipitate, the degassed machine of this precipitate and filter filter and discharge, then treat softening of water
In hardness components calcium ions and magnesium ions concentration reduce, reach the purpose of water demineralization, and by the cyclic softening process of circulating line,
Ultimately form satisfactory demineralized water.
In order to realize the scalable of softening process, water demineralization device of the present invention is additionally included in line monitor 2, this online prison
Survey instrument 2 be arranged on the side wall of softening water tank 1 or water pump 3 and softening water tank 1 outlet between circulating line on, for real-time
The water hardness in softening of water is treated in monitoring.
In the present embodiment, on-line computing model 2 adopts dissolved oxygen monitor or calcium hardness instrument.This dissolved oxygen monitor can basis
The concentration of carbon dioxide in the dissolved oxygen concentration indirect detection water outlet monitoring, the concentration further according to carbon dioxide calculates in water
The content of calcium ions and magnesium ions;This calcium hardness instrument can obtain treating the hydraulic angle value in softening of water in real time.Then water demineralization dress of the present invention
Put and can soften the monitoring result that water correction index combines on-line computing model according to demand, to control opening of water demineralization program
Stop, finally give demineralized water up to standard.
Water demineralization device of the present invention also includes the hard water water supply system 6 for feeding hard water for softening water tank 1, this hard water
Water supply system 6 can be the automatic makeup Water System of ball-cock assembly or the automatic makeup Water System of liquid level type.Examine in this hard water water supply system 6
When measuring water level decreasing in softening water tank 1 to bottom limit level, this hard water water supply system 6 can the moisturizing from trend softening water tank 1
To the liquid level upper limit.
The water demineralization step of water demineralization device of the present invention is as follows:
1st, by the softening water tank 1 treating softening of water injection closing.
2nd, after filling after softening of water in softening water tank 1, water pump 3, degasser 4 and filter 5 are started.
3rd, this water pump 3 will treat that softening of water pumps in degasser 4, and degasser 4 deviates from CO therein2And O2, make to wait to soften firmly
Water forms Calcium Carbonate, magnesium carbonate precipitate, and the degassed machine of this precipitate 4 and filter 5 filter, and filtrate reenters softened water
In case 1, circulating filtration successively, this calcium ions and magnesium ions concentration treated in softening of water is gradually lowered, and so that water quality is softened.
4th, by the water quality in this softening water tank 1 of on-line computing model 2 real-time monitoring, when the gas concentration lwevel in water be 0 or
When calcium hardness value is 0, this treats that in softening of water, all calcium ions and magnesium ions are all discharged, and hardness of water is 0, now can switch off the pump 3,
Degasser 4 and filter 5, then now the water in softening water tank 1 is full softened water.
Certainly, can be different according to the hardness of soft water demand, the monitoring of this on-line computing model 2 oxygen in water concentration DO or
When calcium hardness value reaches setting index, water pump 3, degasser 4 and filter 5 all quit work.
5th, when the soft water in softening water tank 1 is using reaching bottom limit level, hard water water supply system 6 is mended in softening water tank 1
To the liquid level upper limit, now, on-line detector 2 detects index and exceedes setting index water, starts water pump 3, degasser 4 and filter
5, start to soften work.And so on circulate, you can realize water demineralization.
The present invention also accordingly can join on the basis of above-mentioned water demineralization device according to the demand of Automated condtrol in practice
Put each electronic control component, realize the automatic running of this softening plant, the efficiency of softening of increasing water quality.
Water demineralization method of the present invention is pure physics water quality softening method, the no secondary pollution such as medicament mud it is only necessary to consume
A small amount of electric energy drives water pump and degasser work, you can completes water demineralization work, environmental protection, need not regenerate, softening process
Simply.And no consumption material during water demineralization plant running of the present invention, operating cost is low.
The above, be only presently preferred embodiments of the present invention, and not the present invention is made with any pro forma restriction, this
Skilled person makes a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all falls within this
In bright protection domain.
Claims (10)
1. a kind of water demineralization device is it is characterised in that include softening water tank, water pump and degasser, described softening water tank is complete
Closed tank, described water pump and degasser be arranged on the circulating line of described softening water tank inner space on.
2. water demineralization device according to claim 1 is it is characterised in that also include treating softening of water for real-time monitoring
The on-line computing model of middle water hardness, described on-line computing model adopts dissolved oxygen monitor or calcium hardness instrument, and it is arranged at described
On the wall of softening water tank side or on described circulating line.
3. water demineralization device according to claim 1 is it is characterised in that described softening water tank is using doing Anti-seeping technology
The anti-corrosion water tank of concrete basin, Glass fabre reinforced plastic water tank, carbon steel, stainless steel water tank or PE water tank.
4. water demineralization device according to claim 1 it is characterised in that described water pump adopt centrifugal pump, plunger displacement pump or
Self priming pump, described degasser adopts vacuum degassing machine or film degassing equipment.
5. water demineralization device according to claim 1 is it is characterised in that be additionally included in line filter, described online mistake
Filter is arranged on the circulating line of described degasser water side.
6. water demineralization device according to claim 5 is it is characterised in that described pot strainer is filtered using security personnel
Device, flocculation more medium filter or disc filter.
7. water demineralization device according to claim 1 is it is characterised in that also include for feeding for described softening water tank
Treat the hard water water supply system of softening of water, described hard water water supply system is the automatic makeup Water System of ball-cock assembly or liquid level type is mended automatically
Water supply system.
8. a kind of water demineralization method is it is characterised in that methods described is:In the circulating line of closing, abjection is in circulation
The CO treating in softening of water of state2And O2Gas, make described in treat in softening of water produce Calcium Carbonate, magnesium carbonate precipitate, discharge
Described precipitate, treats calcium ions and magnesium ions concentration value in softening of water described in reduction, realizes water demineralization.
9. water demineralization method according to claim 8 it is characterised in that the circulating line of described closing be provided with for
Make to treat that softening of water is realized the water pump of circulation in described circulating line, treated CO in softening of water for abjection2And O2Gas de-
Mechanism of qi and be used for filtering described sedimentary filter.
10. water demineralization method according to claim 9 is it is characterised in that be additionally provided with the circulating line of described closing
For treating the on-line computing model of water hardness in softening of water described in real-time monitoring.
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