A kind of drinking water disinfection device
Technical field
The utility model relates to a kind of drinking water disinfection device.
Background technology
Traditional drinking water disinfection method have chlorine be sterilization (chlorine system sterilization can be divided into: feed in the water chlorine with generation hypochlorous acid disinfectant method; Add hypochlorous acid or sterilized water compositions such as clorox, calcium in the water with disinfectant method; In water, add dioxide peroxide with disinfectant method; Or, add muriate in the water and generate the method for hypochlorous acid or dioxide peroxide with disinfectant method etc. with electrolysis again), UV-irradiation sterilization, ozone disinfection, ultrafiltration removal method etc.These methods have inapplicable occasion or and secondary pollution problem, even also may in tap water, produce the nuisance such as chloroform, bromate of extremely strong carinogenicity because of sterilization, following mask body is introduced the relative merits of each sterilization method.
Chlorine is the relative merits introduction of sterilization.Advantage: be applicable to the occasion of large-scale a large amount of sterilizations, it is fast to kill pathogenic bacterium speed, and the chlorine residue that produces also has the ability of lasting sterilization.Shortcoming: may be in the water that is sterilized the residual muriate that carcinogenic danger is arranged, long-term drinking can be caused a disease; Long-term drinking contains the water of clorox (sterilized water) sterilization, can make the sodium intake too high, can cause the danger of hypertension pathology.
The relative merits introduction of uv irradiation method.Advantage: be applicable to the small-scale sterilization occasion of low discharge.Shortcoming: because of the irradiation residence time that its light intensity can be subdued and need are certain, need consume a large amount of electric energy again in water, so be not suitable for the occasion of the extensive sterilization of big flow.
The relative merits introduction of ozone disinfection.Advantage: be applicable to the sterilization of various water.Shortcoming: when sterilizing brominated high tap water, very easily produce bromate and bromate is carcinogens, drinking water standard must control in 0.01ppm; Ozonizer cost height, power consumption is big, not enough environmental protection.
The relative merits introduction of the method for purifying water of ultrafiltration.Advantage: simple in structure, can remove other impurity in the water, the efficient of purifying waste water is good.Shortcoming: can not filtering for surpassing harmful in the scope of design, and also can there be the secondary environmental pollution problem in the ultrafiltration material after scrapping.
Because above-mentioned various sterilization methods all have weak point, so a kind of killing pathogenic bacteria speed of active demand is fast, control is simple, need not add medicament, is difficult to produce bromate and energy-conserving and environment-protective, is applicable to the drinking water disinfection device of various occasions.
The utility model content
The utility model provides a kind of drinking water disinfection device, and it has overcome the existing deficiency of drinking water disinfection device in the background technology.
The technical scheme that adopts that the utility model solves its technical problem is:
A kind of drinking water disinfection device comprises at least one sterilizer and power supply, and this sterilizer comprises that at least one catalytic oxidation unit and surrounds the catalytic oxidation unit housing; This catalytic oxidation unit comprises at least one anode and at least one negative electrode, is formed with the gap that the energy supplying drinking water flows through between this anode and negative electrode, and this power supply is positioned at outside the housing and electricity connects anode and negative electrode; This housing has water-in and water outlet, and this gap is located between water-in and water outlet.
Among one preferred embodiment: this anode is the titanium-based oxide coated electrode, and this negative electrode is steady shape insoluble electrode.
Among one preferred embodiment: this anode is titanium foundation stone China ink base diamond membrane electrode, and this negative electrode is steady shape insoluble electrode.
Among one preferred embodiment: this steady shape insoluble electrode is titanium or titanium-based oxide, titanium base diamond film.
Among one preferred embodiment: the gap of this anode and negative electrode is made as 0.1mm-100mm.
Among one preferred embodiment: the gap of this anode and negative electrode is made as 0.5-3mm.
Among one preferred embodiment: also comprise strainer and water pump, this water pump is connected water-in with strainer.
Among one preferred embodiment: also comprise an electric control box and an outer container, this sterilizer number is at least two, and these at least two sterilizers all are installed in the outer container, and this each sterilizer establishing is provided with above-mentioned power supply, and this electric control box electricity connects power supply.
Among one preferred embodiment: also comprise warning device, this warning device electricity connects electric control box.
Among one preferred embodiment: this housing is established introducing port, and this anode, negative electrode and power supply all connect by the lead electricity, this lead hermetically passing introducing port.
The technical program is compared with background technology, and it has following advantage:
1, anode and negative electrode are after connecting power supply, produce electrocatalysis oxidation reaction, produce .OH hydroxyl radical free radical and a large amount of oxygen at anode surface, and the gap is located between water-in and water outlet, therefore can overcome the existing deficiency of background technology and produce following technique effect: a .OH hydroxyl radical free radical oxidisability is strong, the pathogenic bacterium in the tap water in the gap of will flowing through moment are killed; Can be reduced to water automatically behind b, this .OH, not have any residual; C, show through repeated tests, when bromide anion content is up to 2mg/L in water, use this device sterilization not only can kill pathogenic bacterium moment but also not generate bromate; Compositions such as the muriate in d, the energy degradation water, vitriol, nitrate make water quality better.
2, adopting titanium-based oxide coated electrode or titanium foundation stone China ink base diamond membrane electrode is anode, and adopting steady shape insoluble electrode is negative electrode, as titanium or titanium-based oxide, titanium base diamond film, can guarantee a large amount of .OH hydroxyl radical free radicals generations.
3, the gap of anode and negative electrode is made as 0.5-3mm, improves disinfection efficiency.
4, at least two sterilizers all are installed in the outer container, and the electric control box electricity connects power supply, and compact construction is user-friendly.
5, anode, negative electrode and power supply all connect by the lead electricity, and lead hermetically passing introducing port guarantees that electricity connects performance, improve safety performance, guarantee sealing property.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 has illustrated the synoptic diagram of the sterilizing unit of a preferred embodiment.
Fig. 2 has illustrated the synoptic diagram of sterilizer of the sterilizing unit of a preferred embodiment.
Embodiment
Please refer to Fig. 1 and Fig. 2, a kind of drinking water disinfection device comprises an electric control box 10, an outer container 20 and at least two sterilizers 30, and this each sterilizer 30 sets a power supply 40, and this electric control box electricity connects each power supply 40.Present embodiment is example with at least two sterilizers 30, but not as limit, a sterilizer 30 also is suitable for as required.It is example that present embodiment sets a power supply 40 with each sterilizer 30, but not as limit, also can share a power supply 40 as required.But this power supply 40 series, parallel or series, parallel combination.This power supply 40 can be direct current, also can be alternating-current.This power supply can adopt high frequency switch power, dc rectification power or low-voltage alternating current power supply, as long as can not produce short-circuiting effect behind the electrode of connection sterilizer; This power supply most preferred embodiment is the safety voltage scope that is set in, and namely less than 36V, but its voltage range is not limited to below the 36V.This electric control box 10 can comprise circuit control PLC and touch-screen, also can be made of switch circuit, its objective is the circuit of the output of control electric current and control device.
This sterilizer 30 comprises that at least one catalytic oxidation unit and surrounds catalytic oxidation unit housing 31, can arrange a plurality of catalytic oxidations unit as required; This catalytic oxidation unit comprises at least one anode 32 and at least one negative electrode 33, and 33 on this anode 32 and negative electrode are formed with the gap 34 that the energy supplying drinking water flows through, and this power supply 40 is installed in outside the housing 31 and electricity connects anode 32 and negative electrode 33; As required, can cooperate a negative electrode by an anode, also can cooperate two negative electrodes by an anode.This housing 31 is made by foodstuffs material, its shape can be cylindrical, square column type or other shape, its have away from two ends, these two ends are established water-in 311 and water outlet 312 respectively, this gap 34 is located between water-in and water outlet, so that tap water flows to through water-in, surely can be through gap 34, to guarantee all to participate in electrocatalysis oxidation reaction by the water of sterilizer when flowing out from water outlet.Among the present embodiment, this each unit can be series, parallel or series, parallel combination.
Among the present embodiment, this anode is titanium-based oxide coated electrode or titanium foundation stone China ink base diamond membrane electrode, and this negative electrode is steady shape insoluble electrode, as titanium or titanium-based oxide, titanium base diamond film.Among the present embodiment, the gap of this anode and negative electrode is made as 0.1mm-100mm, as 0.5-1.0mm, is preferably 0.5-0.75mm.Among the present embodiment, this housing 31 is established introducing port, and this anode 32, negative electrode 33 and power supply 40 all connect by the lead electricity, this lead hermetically passing introducing port.
These at least two sterilizers 30 all are installed in the outer container 20, among the present embodiment, also comprise strainer 50, water pump 60 and valve 70, this water pump 60 is connected water-in 311 with strainer 50, as required, establish the pass tubing system at 30 of sterilizers, water-in 311, water pump 60 and 50 of strainers, water outlet and 70 on valve.Establish strainer before this device to filter the material that removal can be stopped up electrode gap.This device can with filtration unit and other filter plant coupling to play better effect, also can be contained in the tap water source tap water is carried out prophylactic disinfection.
Among the present embodiment, also comprise warning device, this warning device electricity connects electric control box 10, this warning device such as pilot lamp or audible alarm.When power failure, send the works better of alarm monitoring sterilizer, guarantee to be sterilized by the water of sterilizer, prevent from causing because of power failure the fault of sterilization.
The sterilizing unit of present embodiment, for example: adopt the 250W power supply, sun negative electrode gap is 0.5mm, electrode length 300mm, electrode width is 20mm, discharge is 600L/H, and it is definite that this electrode size (length, width and electrode unit number) comes to home to be designed by the water yield that needs each sterilizer sterilization within a certain period of time).This device after testing: 1500/ml of pathogenic escherichia coli all can be killed; (the bromide anion content that general approximately surface water is 10 times) do not produce bromate under bromine ion-containing 2mg/l situation; By 0.7 yuan of calculating of every degree electricity, the water of the highly difficult pathogenic bacterium of sterilization 1000L only needs 0.3 yuan, well below traditional various sterilization methods.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented according to this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.