CN110204011A - A kind of two-part electro-chemical water processing system for scale removal and dechlorination - Google Patents
A kind of two-part electro-chemical water processing system for scale removal and dechlorination Download PDFInfo
- Publication number
- CN110204011A CN110204011A CN201910626374.7A CN201910626374A CN110204011A CN 110204011 A CN110204011 A CN 110204011A CN 201910626374 A CN201910626374 A CN 201910626374A CN 110204011 A CN110204011 A CN 110204011A
- Authority
- CN
- China
- Prior art keywords
- cathode
- scale removal
- dechlorination
- water
- anode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 238000006298 dechlorination reaction Methods 0.000 title claims abstract description 80
- 239000000126 substance Substances 0.000 title claims abstract description 33
- 239000000523 sample Substances 0.000 claims description 18
- 229910044991 metal oxide Inorganic materials 0.000 claims description 14
- 150000004706 metal oxides Chemical class 0.000 claims description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 150000002500 ions Chemical class 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 8
- 238000003487 electrochemical reaction Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 12
- 238000007790 scraping Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000005554 pickling Methods 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000004801 process automation Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- RECVMTHOQWMYFX-UHFFFAOYSA-N oxygen(1+) dihydride Chemical compound [OH2+] RECVMTHOQWMYFX-UHFFFAOYSA-N 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052718 tin Inorganic materials 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4602—Treatment of water, waste water, or sewage by electrochemical methods for prevention or elimination of deposits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- 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
- C02F2303/14—Maintenance of water treatment installations
Abstract
A kind of two-part electro-chemical water processing system for scale removal and dechlorination provided by the invention, including scale removal unit and dechlorination unit, wherein, the water inlet of scale removal unit connects the water inlet pipe of raw water to be processed, the water outlet of the scale removal unit connects the water inlet of the dechlorination unit, and the water outlet of the dechlorination unit connects outlet pipe；The present invention is according to the different principle and process characteristic of scale removal and dechlorination, electro-chemical water treatment process is divided into scale removal section and dechlorination section, every section of structure designs different: scale removal section is " big cathode; primary anode " structure, dechlorination section is " big anode; short pole plate spacing " structure, reaches the electrochemical reaction efficiency of scale removal and dechlorination most preferably, and the sequence of dechlorination can also obtain preferable resultant effect in practice after first scale removal.
Description
Technical field
It is the present invention relates to a kind of method of electro-chemical water processing, in particular to a kind of for the two-part of scale removal and dechlorination electricity
Chemical water treatment system and method.
Background technique
The enrichment of the scale-forming ions such as calcium, magnesium, basicity and deposition will cause the fouling of pipeline and wall surface in water, and chloride ion can draw
The corrosion for playing tubing, causes the raising of process cost, serious accident can be caused when serious.The problem of fouling and corrosion, is in work
Many fields such as industry water, civilian heat supply network circulation are generally existing, and often exist simultaneously.
Electrochemical process is a kind of novel method for solving fouling and corrosion, and with green, process is mild, reduces chemical drugs
Agent, advantage without secondary pollution.However, general electrochemical process is toward often since electrochemical descaling is different with corrosion-resistant principle
Scale removal and the best comprehensive benefit of corrosion-resistant cannot be reached, especially dechlorination effect is poor.The principle of electrochemical descaling is to pass through yin
Pole reaction generates OH-And CO3 2-, be combined into precipitating with the calcium and magnesium ion being electrostatically attracted near cathode, then by mechanical or
The precipitating that modes such as grade adhere to cathode surface removes.Therefore, scale removal reaction need efficient cathode, meta-alkalescence environment,
It is enough to scrape dirty space.However, dechlorination reaction is completed by anodic oxidation chloride ion, efficient anode, slant acidity are needed
Environment, lesser electrode spacing are to reduce resistance.Therefore, scale removal and dechlorination demand are contradictory in some respects, are caused simple
Single-stage electro-chemical water processing be often difficult to reach optimal resultant effect.
Summary of the invention
A kind of two-part electro-chemical water processing system for scale removal and dechlorination provided by the invention, solves existing use
Scale removal is unable in the processing presence of the electro-chemical water of scale removal and dechlorination and dechlorination is combined, to reach lacking for optimal resultant effect
It falls into.
In order to achieve the above object, the technical solution adopted by the present invention is that:
A kind of two-part electro-chemical water processing system for scale removal and dechlorination provided by the invention, including scale removal unit and
Dechlorination unit, wherein the water inlet of scale removal unit connects the water inlet pipe of raw water to be processed, the water outlet connection of the scale removal unit
The water outlet of the water inlet of the dechlorination unit, the dechlorination unit connects outlet pipe；
Scale removal unit is tubular structure, including the first anode, the first cathode, the first shell, scraper device and first be automatically controlled
Element, wherein the first anode is column structure, and positioned at the center of the first shell with tubular structure, the first cathode is tubular
Structure is sleeved in the first shell, is placed between the first anode and the first shell；Scraper device is mounted on the outer of the first cathode
Side, for striking off cathode surface incrustation；First electric control element is connect with the first anode and the first cathode respectively；
Dechlorination unit includes second plate, the second cathode, second housing and the second electric control element, wherein second plate is set
It is equipped with N number of, the second cathode is provided with N+1, and second plate and the second cathode are alternately arranged in the inner cavity for being arranged in second housing,
Second electric control element is connect with second plate and the second cathode respectively.
Preferably, scraper device includes motor, round fixed guide rail and rodlike scraper, and the fixed guide rail of circle is provided with two
It is a, it is separately fixed at the both ends of the first cathode；The both ends of rodlike scraper are slidably connected with the fixed guide rail of circle, rodlike scraper and electricity
Machine is connected by shaft, drives rodlike scraper, by the apparent motion of the first cathode, to be used for along round fixed guide rail by motor
Strike off the first cathode surface incrustation.
Preferably, the first electric control element includes power supply, digital control system and water quality probe, wherein power supply to digital control system and
Water quality probe provides power supply, and water quality probe is for acquiring hardness ions and LSI/RSI index in water, and by collected data
It is transferred to digital control system, digital control system compares the threshold value of the data received and setting, according to comparing result output pair
The instruction that the electric current and voltage of the first anode and the first cathode are regulated and controled.
Preferably, the first anode is Ru metal oxide, Ir metal oxide, Sn metal oxide, Sb metal oxide
With one of Ti metal oxide or a variety of.
Preferably, the first cathode is stainless steel, carbon steel or nickel.
Preferably, scale removal unit is plank frame, specifically: the first anode and the first cathode are the plate knot of area equation
Structure, wherein the first anode is provided with N number of, and the first cathode is provided with N+1, and the two, which is alternately arranged, is arranged in the interior of the first shell
In chamber；Scraper device is provided with N+1, the corresponding outside for being mounted on first cathode of each scraper device, for striking off yin
Pole surface incrustation.
Preferably, the spacing between two adjacent first anode and the first cathode is 3-10cm.
Preferably, second plate and the second cathode are slab construction, and area equation；Two adjacent second plates and
Spacing between second cathode is less than or equal to 5mm.
Preferably, the second electric control element includes power supply, digital control system and water quality probe, wherein power supply to digital control system and
Water quality probe provides power supply, and water quality probe is for acquiring hardness ions and LSI/RSI index in water, and by collected data
It is transferred to digital control system, digital control system compares the threshold value of the data received and setting, according to comparing result output pair
The instruction that the electric current and voltage of second plate and the second cathode are regulated and controled.
Preferably, the volume ratio of scale removal unit and dechlorination unit is (6-8): 1.
Compared with prior art, the beneficial effects of the present invention are:
A kind of two-part electro-chemical water processing system for scale removal and dechlorination provided by the invention, the present invention is according to scale removal
With the different principle and process characteristic of dechlorination, electro-chemical water treatment process is divided into scale removal section and dechlorination section, every section of structure is set
Count different: scale removal section is " big cathode, primary anode " structure, and dechlorination section is " big anode, short pole plate spacing " structure, makes scale removal and takes off
The electrochemical reaction efficiency of chlorine reaches most preferably, and the sequence of dechlorination can also obtain preferable synthesis in practice after first scale removal
Effect.
Further, the tubular structure and plank frame for scraping dirty unit, can be respectively suitable for different use demand: tubular
Structure is easy to implement automation scale removal, but occupied area is larger, can be applied to space it is abundant, to process automation degree require compared with
High environment；Plank frame can use automatic desludging or manual scale removal method, and occupied area is smaller, can be applied to soil more
In the nervous, environment of less demanding to process automation degree.
Further, the spacing between two adjacent first anode and the first cathode is 3-10cm, for the generation of dirty layer
Sufficient space is provided with striking off, convenient for the progress of scaling operation, scale forming matter is avoided to block channel between pole plate.
Further, the spacing between two adjacent second plates and the second cathode is less than or equal to 5mm, can effectively drop
Resistance between low pole plate promotes electrochemical reaction efficiency, and since dechlorination reaction is highly energy-consuming reaction, this design can make device
Whole efficiency greatly promotes.
Further, the volume ratio of scale removal unit and dechlorination unit is (6-8): 1, the volume of dechlorination unit is saved, from
And reduce the added amount of chemical and operating cost of the pre- film of anode, anodic passivity and necessary pickling descaling process；Scale removal unit
It is big cathode fouling, is not required to carry out pre- film and passivation, biggish volume not will cause reagent cost rising, can increase scale removal
Space.
Detailed description of the invention
Fig. 1 is the flow chart of the system of the two-part electro-chemical water processing of scale removal of the present invention and dechlorination；
Fig. 2 is the schematic diagram of scale removal unit of the present invention；
Fig. 3 is the schematic diagram of dechlorination unit of the present invention；
Wherein, 1, dirty unit 2, dechlorination unit 11, the first anode 12, the first cathode 13, the first shell 14, scraper device are scraped
15, the first electronic control unit 16, the first water inlet 17, the first water outlet 18, the first sewage draining exit 21, second plate 22, the second cathode
23, second housing 24, the second electric control element 25, the second water inlet 26, the second water outlet 27, the second sewage draining exit.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in more detail.
As shown in Figure 1, a kind of two-part electro-chemical water processing system for scale removal and dechlorination provided by the invention, including
Scale removal unit 1 and dechlorination unit 2, wherein the water inlet of scale removal unit 1 connects the water inlet pipe of raw water to be processed, the scale removal list
The water outlet of member 1 connects the water inlet of the dechlorination unit 2, and the water outlet of the dechlorination unit 2 connects outlet pipe.
As shown in a figure in Fig. 2, scale removal unit 1 is tubular structure, including the first anode 11, the first cathode 12, the first shell
13, scraper device 14, the first electric control element 15, the first water inlet 16, the first water outlet 17 and the first sewage draining exit 18, wherein the
One anode 11 is column structure, and positioned at the center of the first shell 13 with tubular structure, the first cathode 12 is tubular structure, set
In the first shell 13, it is placed between the first anode 11 and the first shell 13；Scraper device 14 is mounted on the first cathode 12
Outside, for striking off cathode surface incrustation；First electric control element 15 is connect with the first anode and the first cathode respectively.
Scraper device 14 includes variable-frequency motor, round fixed guide rail and rodlike scraper, wherein the fixed guide rail of circle is provided with
Two, it is separately fixed at the both ends of the first cathode 12；The both ends of rodlike scraper are slidably connected with the fixed guide rail of circle, rodlike scraper
It is connect with motor by shaft, apparent motion of the rodlike scraper along round fixed guide rail by the first cathode is driven by motor,
For striking off the first cathode surface incrustation.
First electric control element 15 includes power supply, digital control system and water quality probe, wherein power supply is to anodic-cathodic, numerical control system
System and water quality probe provide power supply, and water quality is popped one's head in for acquiring hardness ions and LSI/RSI index in water, and will be collected
Data are transferred to digital control system, and digital control system compares the threshold value of the data received and setting, defeated according to comparing result
The instruction that electric current to the first anode and the first cathode and voltage are regulated and controled out.
The first anode 11 is Ru metal oxide, Ir metal oxide, Sn metal oxide, Sb metal oxide and Ti gold
Belong to one of oxide or a variety of.
First cathode 12 is stainless steel, carbon steel or nickel.
First water inlet 16 and the first water outlet 17 are located at the both sides of the first shell 13, first sewage draining exit 18
In the middle of 13 lower end of the first shell.
Scale removal unit 1 is connect by the first water inlet 16 with the water inlet pipe of raw water to be processed；By the first discharge outlet 17 with
Dechlorination unit 2 connects.
As shown in b figure in Fig. 2, scale removal unit 1 is plank frame, including the first anode 11, the first cathode 12, the first shell
13, scraper device 14 and the first electric control element 15, wherein the first anode 11 and the second cathode 12 are the plate knot of area equation
Structure, wherein the first anode 11 is provided with N number of, and the first cathode 12 is provided with N+1, and the two, which is alternately arranged, is arranged in the first shell
In 13 inner cavity.
Scraper device 14 is provided with N+1, and the corresponding outside for being mounted on first cathode 12 of each scraper device 14 is used
In striking off cathode surface incrustation.
First electric control element 15 is connect with the first anode and the first cathode respectively.
As shown in figure 3, dechlorination unit 2 is plank frame, including second plate 21, the second cathode 22, second housing 23, the
Two electric control elements 24, the second water inlet 25, the second water outlet 26 and the second sewage draining exit 27, wherein second plate 21 is provided with N
A, the second cathode 22 is provided with N+1, and second plate 21 and the second cathode 22 are slab construction, and area equation, the two are handed over
For arranged in the inner cavity of second housing 23.
Second electric control element 24 includes power supply, digital control system and water quality probe, wherein power supply is to digital control system and water
Matter probe provides power supply, and water quality probe passes collected data for acquiring hardness ions and LSI/RSI index in water
Defeated to arrive digital control system, digital control system compares the threshold value of the data received and setting, according to comparing result output to the
The instruction that the electric current and voltage of two anodes and the second cathode are regulated and controled.
Second water inlet 25 and the second water outlet 26 are located at the both sides of second housing 23, second sewage draining exit
27 are located at the middle of 23 lower end of second housing.
23 top of second housing is equipped with gas vent.
To prevent dechlorination section anodic attack, pre- film is carried out to dechlorination section anode using inhibition class medicament；Or in advance to de-
Chlorine section anode is passivated processing.
Due to dechlorination section small volume, medicament or power consumption are reduced, to make more convenient operation, reduces cost.
Spacing between the first anode 11 of two adjacent plank frames and the second cathode 12 is 3-10cm.
Spacing between two adjacent second plates 21 and the second cathode 22 is less than or equal to 5mm.
The volume ratio of scale removal unit 1 and dechlorination unit 2 is (6-8): 1.
The method of system " scale removal+dechlorination " two-part electro-chemical water processing described above, includes the following steps:
1, raw water enters scale removal unit 1, removes most scale forming matter；Scale forming matter on first cathode is by scraping dirt
Device 14 strikes off, from 18 discharge system of the first sewage draining exit of scale removal unit 1.
2, the water after scale removal enters dechlorination unit, removes most chloride.
In the step 1, automatic scraping dirt mode or manual scale removal method is may be selected in the dirty mode of scraping of scale removal unit 1.Work as original
When water calcium-magnesium content is higher, treatment scale is larger, using periodical automatic scraping dirt mode, scraping the dirty period is 0.5-2 times/min.When
When raw water calcium-magnesium content is lower, treatment scale is smaller, cathode surface dirt layer forms slower, manual scale removal method can be used, by the
One cathode plate removes, and removes de-sludging layer using mechanical external force.Manual scale removal without the fixed cycle, when scale removal cell current reduce by 20% or
Voltage can carry out scale removal when increasing 20%.
In the step 2, dechlorination section provides more annode area in lesser volume, ensure that chlorine removal rate.
In the step 2, such as observes that electric current stream reduces by 20% or more or 20% or more voltage raising, can periodically pass through acid
It washes or the mode of grade removes a small amount of fouling on cathode plate.Due to eliminating most of scale forming matter in advance in step 1, walk
Rapid 2 fouling greatly reduces, and reduces the frequency of scale removal.Since dechlorination unit volume is smaller, the water consume of pickling is decreased, is dropped
Low cost.
Existing electro-chemical water processing equipment often biases toward descaling function, and effect is poor.Reason is: 1) grasping from scale removal
Work facilitates consideration, and anode and cathode spacing is larger, and anode reaction efficiency is caused to decline；2) water oxygen competitive reaction occurs for anode surface,
Reduce dechlorination efficiency.
Electro-chemical water treatment process is divided into scale removal section according to the different principle and process characteristic of scale removal and dechlorination by the present invention
With dechlorination section, every section of structure designs different: scale removal section is " big cathode, primary anode " structure, and dechlorination section is " big anode, short pole
Plate spacing " structure reaches the electrochemical reaction efficiency of scale removal and dechlorination most preferably, and the sequence of dechlorination also can after first scale removal
Preferable resultant effect is obtained in practice.
In the present invention, complex metal oxide electrode of the anode material of dechlorination section using doping Sn or Pb, chloride ion oxygen
The selectivity for changing reaction is higher, promotes the promotion of dechlorination effect.
Embodiment 1
Utilize system treatment of Power recirculated water of the invention.
Recirculated water original water hardness is 400mg/L (with CaCO3Meter, similarly hereinafter), basicity 300mg/L, chlorine ion concentration is
300mg/L。
System uses tubular scale removal unit+board-like dechlorination unit.Drum type brake scale removal unit includes column anode, tubular yin
Pole, shell, scraper device, electric control element, water inlet, water outlet, sewage draining exit.The anode is Ti/Ru electrode, the cathode position
It is stainless steel material in the inside of shell, cylinder radius is 30cm；The scraper device is made of 8 rodlike movable scrapers, scraper
It is radially uniform to be distributed on the inside of cathode plane with scale removal unit axis parallel, cathode surface incrustation is struck off by rotary motion, often
Dirt is scraped 1 time every 1min.The electric control element includes power supply, digital control system, electrode connection, water quality probe, can be observed as needed
Hardness ions, LSI/RSI index in water, and the electric current and voltage of regulator control system.The inlet and outlet are located at
The both sides of shell, the sewage draining exit are located at the middle of shell lower end.
Dechlorination unit includes anode, cathode, shell, electric control element, water inlet, water outlet, sewage draining exit.Anode is Ru-Ir
Combination electrode shares 50 pieces of anodes；Cathode is nickel plate, shares 51 pieces of cathodes；The anode and cathode is plate electrode, area
It is equal, it is alternately arranged, pole plate spacing is 5mm.The electric control element include power supply, digital control system, electrode connection, water quality probe,
Chloride ion that can as needed in observation water, and the electric current and voltage of regulator control system.The inlet and outlet are located at
The both sides of shell, the sewage draining exit are located at the middle of shell lower end.The shell upper is equipped with gas vent.
Electro-chemical water processing includes the following steps:
1) electric power plant circulating water raw water enters scale removal unit, removes most scale forming matter；Scale forming matter on cathode is logical
It crosses scraper device to strike off, from the sewage draining exit discharge system of scale removal unit.
2) water after scale removal enters dechlorination unit, removes most chloride.
In the step 1, the dirty mode of scraping of scale removal unit is automatic scraping dirt, and scraping the dirty period is 1 time/min.
In the step 2, processing is passivated to dechlorination section anode in advance.When observe electric current stream reduce by 20% or more
When, a small amount of fouling on cathode plate is removed by way of pickling.
The hardness removal rate of electro-chemical water processing is greater than 60%, and chloride ion removal rate is greater than 40%.
Embodiment 2
Reverse osmosis concentrated water is handled using system of the invention.
The reverse osmosis concentrated water hardness is 2000mg/L (with CaCO3Meter, similarly hereinafter), basicity 500mg/L, chlorine ion concentration is
1000mg/L。
System uses board-like scale removal unit+board-like dechlorination unit.Board-like scale removal unit includes anode, cathode, shell, scrapes dirt
Device, electric control element, water inlet, water outlet, sewage draining exit.The anode is Ru-Ir/Ti electrode, and the cathode is stainless steel electricity
Pole, the number of the anode and cathode are respectively 10 and 11, and the anode and cathode is plate electrode, area equation,
It is alternately arranged, adjacent plate spacing is 2cm.The scraper device is made of (1~2) * 22 rodlike movable scrapers, and scraper is vertical
Positioned at cathode two sides, cathode surface incrustation is struck off by left and right alternating movement.The electric control element include power supply, digital control system,
Electrode connection, water quality probe, can the hardness ions in observation water, LSI/RSI index as needed, and the electric current of regulator control system and
Voltage.The inlet and outlet are located at the both sides of shell, and the sewage draining exit is located at the middle of shell lower end.It is described
Shell upper is equipped with gas vent.
Dechlorination unit includes anode, cathode, shell, electric control element, water inlet, water outlet, sewage draining exit.Anode is Ru-Ir/
Ti combination electrode shares 50 pieces of anodes；Cathode is nickel plate, shares 51 pieces of cathodes；The anode and cathode is plate electrode, face
Product is equal, is alternately arranged, and pole plate spacing is 5mm.The electric control element includes power supply, digital control system, electrode connection, water quality spy
Head, chloride ion that can as needed in observation water, and the electric current and voltage of regulator control system.The inlet and outlet distinguish position
In the both sides of shell, the sewage draining exit is located at the middle of shell lower end.The shell upper is equipped with gas vent.
Electro-chemical water processing includes the following steps:
1) electric power plant circulating water raw water enters scale removal unit, removes most scale forming matter；Scale forming matter on cathode is logical
It crosses scraper device to strike off, from the sewage draining exit discharge system of scale removal unit.
2) water after scale removal enters dechlorination unit, removes most chloride.
In the step 1, the dirty mode of scraping of scale removal unit is automatic scraping dirt, and scraping the dirty period is 1 time/min.
In the step 2, corrosion inhibiter pre-filming treatment is carried out to dechlorination section anode in advance.When observe electric current stream reduce by 20%
When above, a small amount of fouling on cathode plate is removed by way of pickling.
The hardness removal rate of electro-chemical water processing is greater than 40%, and chloride ion removal rate is greater than 20%.
Non-elaborated part of the present invention belongs to techniques well known.
The above, part specific embodiment only of the present invention, but scope of protection of the present invention is not limited thereto, appoints
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover by what those skilled in the art
Within protection scope of the present invention.
Claims (10)
1. a kind of two-part electro-chemical water processing system for scale removal and dechlorination, which is characterized in that including scale removal unit (1) and
Dechlorination unit (2), wherein the water inlet of scale removal unit (1) connects the water inlet pipe of raw water to be processed, the scale removal unit (1)
Water outlet connects the water inlet of the dechlorination unit (2), and the water outlet of the dechlorination unit (2) connects outlet pipe；
Scale removal unit (1) is tubular structure, including the first anode (11), the first cathode (12), the first shell (13), scraper device
(14) and the first electric control element (15), wherein the first anode (11) is column structure, positioned at the first shell with tubular structure
(13) center, the first cathode (12) are tubular structure, are sleeved in the first shell (13), are placed in the first anode (11) and first
Between shell (13)；Scraper device (14) is mounted on the outside of the first cathode (12), for striking off cathode surface incrustation；First electricity
Control element (15) is connect with the first anode and the first cathode respectively；
Dechlorination unit (2) includes second plate (21), the second cathode (22), second housing (23) and the second electric control element (24),
Wherein, second plate (21) is provided with N number of, and the second cathode (22) is provided with N+1, second plate (21) and the second cathode (22)
It is alternately arranged in the inner cavity for being arranged in second housing (23), the second electric control element (24) connects with second plate and the second cathode respectively
It connects.
2. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In scraper device (14) includes motor, round fixed guide rail and rodlike scraper, and there are two the fixed guide rail settings of circle, solid respectively
It is scheduled on the both ends of the first cathode (12)；The both ends of rodlike scraper are slidably connected with the fixed guide rail of circle, and rodlike scraper and motor are logical
Shaft connection is crossed, apparent motion of the rodlike scraper along round fixed guide rail by the first cathode is driven by motor, for striking off
First cathode surface incrustation.
3. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In the first electric control element (15) includes power supply, digital control system and water quality probe, wherein power supply is popped one's head in digital control system and water quality
Power supply is provided, collected data are transferred to number for acquiring hardness ions and LSI/RSI index in water by water quality probe
Control system, digital control system compare the threshold value of the data received and setting, are exported according to comparing result to the first anode
The instruction regulated and controled with the electric current and voltage of the first cathode.
4. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In the first anode (11) is Ru metal oxide, Ir metal oxide, Sn metal oxide, Sb metal oxide and Ti metal
One of oxide is a variety of.
5. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In the first cathode (12) is stainless steel, carbon steel or nickel.
6. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In, scale removal unit be plank frame, specifically: the first anode (11) and the first cathode (12) for area equation slab construction,
Wherein, the first anode (11) is provided with N number of, and the first cathode (12) is provided with N+1, and the two, which is alternately arranged, is arranged in the first shell
(13) in inner cavity；Scraper device (14) is provided with N+1, and each scraper device (14) correspondence is mounted on first cathode
(12) outside, for striking off cathode surface incrustation.
7. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 6, feature exist
In the spacing between two adjacent first anode (11) and the first cathode (12) is 3-10cm.
8. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In, second plate (21) and the second cathode (22) be slab construction, and area equation；Two adjacent second plates (21) and
Spacing between second cathode (22) is less than or equal to 5mm.
9. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In the second electric control element (24) includes power supply, digital control system and water quality probe, wherein power supply is popped one's head in digital control system and water quality
Power supply is provided, collected data are transferred to number for acquiring hardness ions and LSI/RSI index in water by water quality probe
Control system, digital control system compare the threshold value of the data received and setting, are exported according to comparing result to second plate
The instruction regulated and controled with the electric current and voltage of the second cathode.
10. a kind of two-part electro-chemical water processing system for scale removal and dechlorination according to claim 1, feature exist
In the volume ratio of scale removal unit (1) and dechlorination unit (2) is (6-8): 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626374.7A CN110204011A (en) | 2019-07-11 | 2019-07-11 | A kind of two-part electro-chemical water processing system for scale removal and dechlorination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626374.7A CN110204011A (en) | 2019-07-11 | 2019-07-11 | A kind of two-part electro-chemical water processing system for scale removal and dechlorination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110204011A true CN110204011A (en) | 2019-09-06 |
Family
ID=67797156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910626374.7A Pending CN110204011A (en) | 2019-07-11 | 2019-07-11 | A kind of two-part electro-chemical water processing system for scale removal and dechlorination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110204011A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039421A (en) * | 2019-12-12 | 2020-04-21 | 江苏京源环保股份有限公司 | Circulating water online descaling device and method based on electrochemistry |
| CN112979016A (en) * | 2021-04-28 | 2021-06-18 | 中国华能集团清洁能源技术研究院有限公司 | Circulating water sewage treatment and reuse system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007253114A (en) * | 2006-03-24 | 2007-10-04 | Kurita Water Ind Ltd | Electrolysis method of water and electrolytic apparatus |
| JP2007260493A (en) * | 2006-03-27 | 2007-10-11 | Kurita Water Ind Ltd | Electrolyzing apparatus |
| CN202864975U (en) * | 2012-11-09 | 2013-04-10 | 刘银树 | Electrolytic water treatment device |
| US20130228459A1 (en) * | 2010-11-24 | 2013-09-05 | Seki Kazunori | Electrolyzed water producing apparatus |
| CN105753106A (en) * | 2016-05-04 | 2016-07-13 | 山东海能环境技术有限公司 | Fully automatic sterilizing and descaling device for circulating water |
| CN208151081U (en) * | 2017-12-04 | 2018-11-27 | 山东海能环境技术有限公司 | The clear device of Horizontal type automatic dirt bacterium |
| CN210261239U (en) * | 2019-07-11 | 2020-04-07 | 中国华能集团清洁能源技术研究院有限公司 | Two-section type electrochemical water treatment system for descaling and dechlorinating |
-
2019
- 2019-07-11 CN CN201910626374.7A patent/CN110204011A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007253114A (en) * | 2006-03-24 | 2007-10-04 | Kurita Water Ind Ltd | Electrolysis method of water and electrolytic apparatus |
| JP2007260493A (en) * | 2006-03-27 | 2007-10-11 | Kurita Water Ind Ltd | Electrolyzing apparatus |
| US20130228459A1 (en) * | 2010-11-24 | 2013-09-05 | Seki Kazunori | Electrolyzed water producing apparatus |
| CN202864975U (en) * | 2012-11-09 | 2013-04-10 | 刘银树 | Electrolytic water treatment device |
| CN105753106A (en) * | 2016-05-04 | 2016-07-13 | 山东海能环境技术有限公司 | Fully automatic sterilizing and descaling device for circulating water |
| CN208151081U (en) * | 2017-12-04 | 2018-11-27 | 山东海能环境技术有限公司 | The clear device of Horizontal type automatic dirt bacterium |
| CN210261239U (en) * | 2019-07-11 | 2020-04-07 | 中国华能集团清洁能源技术研究院有限公司 | Two-section type electrochemical water treatment system for descaling and dechlorinating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039421A (en) * | 2019-12-12 | 2020-04-21 | 江苏京源环保股份有限公司 | Circulating water online descaling device and method based on electrochemistry |
| CN112979016A (en) * | 2021-04-28 | 2021-06-18 | 中国华能集团清洁能源技术研究院有限公司 | Circulating water sewage treatment and reuse system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104261573B (en) | A kind of electrochemistry incrustation scale removal device | |
| CN105849047B (en) | The method for preparing lithium carbonate | |
| CN206188462U (en) | Automatic waste water electrolysis processing apparatus of scale removal | |
| CN106119852B (en) | A kind of electrolytic recovery and regeneration technology of acid copper chloride etching liquid | |
| CN104211235B (en) | A kind of method of electrochemistry incrustation scale removal device and removal incrustation scale | |
| CN106277369B (en) | A kind of electrochemistry method of scale inhibition | |
| CN110204011A (en) | A kind of two-part electro-chemical water processing system for scale removal and dechlorination | |
| CN202508932U (en) | Electrolytic water treatment device with rotary scrapers for de-scaling | |
| CN104291450B (en) | A kind of electrochemistry incrustation scale removal device | |
| CN104528957A (en) | Circulating water treatment method and equipment | |
| CN205653219U (en) | Automatic electro -chemical water treatment ware | |
| CN201785505U (en) | NaCIO generator | |
| CN105923797A (en) | Full automatic descaling and sterilizing device for water body with high flow | |
| CN104291451B (en) | A kind of electrochemistry incrustation scale removal device | |
| CN206705755U (en) | A kind of circulating water treatment box body device | |
| CN106277219A (en) | Purify and process salt and the electrochemical appliance of impurity and method in water | |
| CN106336051A (en) | Recirculated cooling water strengthening treatment apparatus and method | |
| CN207774875U (en) | Electro-chemical water processing polar plate device, reative cell and circular water treating system | |
| CN210261239U (en) | Two-section type electrochemical water treatment system for descaling and dechlorinating | |
| CN204198499U (en) | A kind of electrochemistry incrustation scale removal device | |
| CN110937666A (en) | Anode protection type automatic descaling device for electrolyzing salt-containing organic wastewater | |
| CN210122500U (en) | Rotary electrochemical circulating water treatment device | |
| CN1079846C (en) | Method and apparatus for processing neutral salt electolysing liquid | |
| CN210855478U (en) | Mechanical automatic descaling electrochemical device | |
| Wang | Novel electrowinning technologies: the treatment and recovery of metals from liquid effluents |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |