CN106661742A

CN106661742A - Electrolysis device

Info

Publication number: CN106661742A
Application number: CN201580041222.0A
Authority: CN
Inventors: 洗畅俊; 坂本泰宏; 林信广
Original assignee: Sharp Corp
Current assignee: Sharp Life Science Corp
Priority date: 2014-07-25
Filing date: 2015-01-28
Publication date: 2017-05-10
Also published as: US20170145571A1; JP5887385B2; JP2016029204A; WO2016013234A1

Abstract

This electrolysis device is characterized in that: the device is provided with an electrolysis unit; the electrolysis unit is provided with a flow path for a fluid to be processed, at least one electrolysis electrode pair, an inflow opening, and an outflow opening; the electrolysis electrode pair is disposed so as to be inclined to the vertical direction and includes an upper electrode and a lower electrode disposed so as to face each other; and the flow path for the fluid to be processed is provided such that fluid flowing in from the inflow opening flows from a lower side to an upper side of an inter-electrode flow path between the upper electrode and lower electrode and flows out of the outflow opening.

Description

Electrolysis unit

Technical field

The present invention relates to electrolysis unit, more particularly to diaphragm-free electrolysis device.

Background technology

Electrolysis manufacture etc. of the practical application in chemical material.For example NaOH is manufactured by electrolysis soda process (severe Property soda), chlorine, hydrogen, the basic chemical feedstock such as sodium carbonate (soda ash).In addition, industrial use is not limited to, it is whole in basic ion Also have using the product of electrolysis tech in the housed devices such as hydrophone.

Had the following advantages using electrolysis tech：The material of activity can be generated from almost inactive innocuous materials.For example, with Sodium hypochlorite for the hypochlorous acid salt of representative be used as bleaching agent, bactericide be used for the process of upper and lower water, the process of draining, The kitchen of family or washing etc..The manufacture of hypochlorite be make to be electrolysed the aqueous solution of the alkali metal chlorides such as salt solution from Obtained from the alkali hydroxide and chlorine method that reacts and manufactured carry out, or by undivided cell In the aqueous solution of alkali metal chloride is electrolysed, manufacture what the method for aqueous hypochlorite solution was carried out in a cell.

In the method for making alkali hydroxide react with chlorine, the aqueous hypochlorite solution of high concentration can be obtained, therefore Using the method in the case of being manufactured for the purpose of to sell aqueous hypochlorite solution.However, it is desirable to manufacture alkali hydroxide With the electrolysis installation of chlorine, therefore in the electrolysis plant of the alkali metal chlorides such as large-scale salt be with alkali hydroxide or The manufacture of chlorine and incidentally manufactured.

And on the other hand, the method being electrolysed to aqueous solution such as salt solution in undivided cell can be using simple electricity Solution equipment is generated can be directly used in water purification, the aqueous hypochlorite solution of sterilized concentration.Therefore, the method is using time chlorine It is utilized in the scene of acid salt aqueous solution.Also, the electrolysis manufacture of aqueous hypochlorite solution has following feature：Can be according to time chlorine The requirement of acid salt aqueous solution and the electric current of circulation is increased and is reduced, make to sterilization etc. that effectively chlorine component is all dissolved in water In.Therefore, the method by electrolysis manufacture hypochloric acid water solution is excellent with what is need not stored to hypochlorite, be transported Point.Therefore, it is being provided with the storage equipment of liquid chlorine before this and the factory using chlorine or storage have dense hypochlorite water-soluble Liquid and use the factory of aqueous hypochlorite solution, can be transferred through being electrolysed the manufacture for carrying out aqueous hypochlorite solution.

In the method for manufacturing hypochlorite by the electrolysis of the aqueous solution of alkali metal chloride, it is believed that carry out such as chemistry Reaction equation (1)～anode reaction as (3), carries out the cathode reaction as chemical equation (4).

2Cl^-→Cl₂+2e^-···(1)

Cl₂+H₂O→HCl+HClO···(2)

H₂O→1/2O₂+2H⁺+2e^-···(3)

2H₂O+2e^-→H₂+2OH^-···(4)

Additionally, when the aqueous solution becomes highly acid (pH is less than 3), the reaction speed of chemical equation (2) is slack-off, sometimes Chlorine can be generated by back reaction.

But, when the concentration of the aqueous hypochlorite solution by electrolysis manufacture is low, what is included in processed water sometimes has The concentration of machine thing can be uprised, and degerming object that sometimes cannot be fully more to organic matter adhesion amount carries out degerming.As system The method for making the aqueous hypochlorite solution of high concentration, it may be considered that make electrolyte be stranded in the time between anode and negative electrode elongated Method, the method for electrolysis cells that arranged by demarcation strip multi-stag using the multiple electrolytic cells that will be provided with anode and negative electrode. But, the growing amount of time per unit can tail off if the holdup time is extended, and there is life if the electrode using multi-stag The shortcoming that producing property variation price is uprised.In addition, in these methods, existing can produce substantial amounts of hydrogen and the attachment of bubble causes The contact area of electrolyte and electrode reduces, cause the formation efficiency of electrolytically generated thing to reduce due to the masking etc. of electric field, secondary chlorine The problems such as there is deviation in the concentration of acid salt aqueous solution.

Additionally, the little acidic aqueous solution of hydrogen ion exponent (pH) has degerming property, it can be considered to make hypochlorite dense Spend than relatively low and manufacture the little aqueous hypochlorite solutions of pH.Thus, the hypochlorite that can be manufactured with enough degerming property is water-soluble Liquid simultaneously suppresses required power consumption.But, acid aqueous hypochlorite solution is present except hydrogen is also easy to produce chlorine Shortcoming.

The existing manufacture device using electrolysis manufacture aqueous hypochlorite solution is illustrated using Figure 15～17.

Figure 15 is the figure for schematically showing the existing electrolysis unit 100 generally adopted using the product of electrolysis tech. Possesses the electrode pair including the 1st electrode 103 and the 2nd electrode 104 in the inside of resinous casing 101.1st electrode 103 is connected The distribution 106 (pin) for applied voltage is connected to, the distribution 107 for applied voltage is connected with to the 2nd electrode 104 and (is drawn Pin).Typically, a side of pin is welded to electrode, and the opposing party cuts screw thread so as to be connected with the distribution from power supply. Although the shape of casing 101 can be suitably designed using О type rings etc. can prevent leakage, this is with the present invention without straight Connect relation thus omit.Electrolysis unit 100 possesses for after the supply opening 108 and discharge electrolysis that liquid to be treated is supplied between electrode Liquid floss hole 109.Generally, electrode pair is vertically arranged, and liquid to be treated is supplied from below.

According to this composition, in the case where bubble is generated at the electrode surface by cell reaction generation gas, The flowing of the buoyancy and liquid to be treated that can pass through bubble easily removes bubble from electrode surface, can suppress to carry out cell reaction The reduction of electrode surface.But, in this composition, the flow velocity of the electrolyte between electrode near the central authorities of stream is fast, and end is attached The flow velocity of near electrolyte is slack-off.Accordingly, there exist following problem：Produced according to the path of flowing partially by the time being electrolysed Difference, the formation efficiency of electrolytically generated thing is reduced.

As an example of the application product of electrolysis unit, it is desirable to the electrolysis being compactly assembled into as far as possible shown in Figure 16 Water generator 120 is using.Possessing in casing 111 can be with the pipe arrangement that can supply the water from running water pipe or other water source force feeds The feed water inlet 112 of connection；And the ejiction opening 113 of ejection electrolysis water.Ejiction opening 113 can be connected and electrolysis water is sent into supply mesh Ground pipe arrangement.Possesses the switch 114 that the device is beaten opening/closing.Moreover it is possible to suitably possess the instruction of display action situation Device, switch for other of various actions, but these are not directly dependent upon with the present invention thus omit.

Figure 17 is the figure of the internal structure of the device for producing electrolytic water 120 for schematically showing Figure 16.From feed water inlet 112 to spray Outlet 113 is connected by pipe arrangement 115, and possesses the magnetic valve 116 that can beat opening/closing as needed therebetween.In pipe arrangement 115 midway has the position being spatially connected with the outlet of electrolysis unit 100.The entrance of electrolysis unit 100 passes through flexible pipe Spatially it is connected with original fluid container 117 Deng pipe arrangement, possesses the pump 118 for conveying stoste by ormal weight therebetween.

Then the elemental motion of the device for producing electrolytic water 120 is illustrated.When switch 114 is opened, magnetic valve 116 is opened, Water is fed in maker 120 from feed water inlet 112, is sprayed from ejiction opening 113 through pipe arrangement 115.In addition, pump 118 is operated, The stoste stored in original fluid container 117 is fed into electrolysis unit 100.Electrolysis unit 100 is powered from power supply (not shown), to original Liquid is electrolysed.By electrolytically generated high-concentration electrolytic water by be fed to pipe arrangement 115 and in pipe arrangement 115 flow water dilution For appropriate concentration.Electrolysis water after dilution is transported to electrolysis water from ejiction opening 113 through pipe arrangements such as the sebific ducts that suitably connects Supply centre.When switch 114 is closed, the power supply to magnetic valve 116, pump 118, electrolysis unit 100 is cut off and stopping action.

In addition, in the hypochlorite manufacture electrolytic cell of the unit electrolytic cell with multiple bipolar types, it is known that in unit The inflow part or outflow portion of the electrolyte of electrolytic cell is provided with the hypochlorite manufacture electrolytic cell of cooling chamber (with reference to patent document 1).In the method, following situation can be prevented：Produced bubble rises and accumulates in electrolysis cells top, and electrode upper is not Immerse electrolyte and cause electrode effective area to reduce.Additionally, the electrolysis unit that patent document 1 is recorded (claims in patent document 1 For electrolytic cell) possess it is multiple with respect to the horizontal plane and vertical battery lead plate, liquid to be treated flows upward with supplying from below Mode using.

Additionally, it is known that a kind of fusion electrolysis groove, it makes anode and negative electrode be obliquely installed in a cell, makes the chlorine of generation Gas moves to top, and the zinc for making generation moves to lower section (with reference to patent document 2).

Prior art literature

Patent document

Patent document 1：Unexamined Patent 6-200393 publication

Patent document 2：JP 2003-328173 publication

The content of the invention

Problems to be solved by the invention

But, in existing electrolysis unit, there is a problem of that the formation efficiency of electrolytically generated thing is not high enough.

The present invention is completed in light of this situation, there is provided can efficiently generate the electrolysis unit of electrolytically generated thing.

For solution to problem

The present invention provides a kind of electrolysis unit, it is characterised in that possess electrolysis cells, above-mentioned electrolysis cells possess processed , to, inflow entrance and flow export, above-mentioned electrode for electrolysis is to relative to vertical side for fluid flowing path, least one set electrode for electrolysis To and inclined mode is configured, and including the upper electrode and lower electrode of mutual relative configuration, above-mentioned processed fluid stream Road is arranged to：Between electrode of the fluid flowed into from above-mentioned inflow entrance between above-mentioned upper electrode and above-mentioned lower electrode in stream Side flowing on the side, flows out from above-mentioned flow export under.

Invention effect

According to the present invention, possess electrolysis cells, above-mentioned electrolysis cells possess processed fluid flowing path, least one set electrolysis and use Electrode pair, inflow entrance and flow export, above-mentioned electrode for electrolysis to including the upper electrode and lower electrode of mutually relative configuration, Above-mentioned processed fluid flowing path be arranged to from above-mentioned inflow entrance flow into fluid above-mentioned upper electrode and above-mentioned lower electrode it Between electrode between flowing and flow out from above-mentioned flow export in stream, therefore fluid can be made to circulate in processed fluid flowing path, lead to Cross carries out electrolysis process to electrode for electrolysis to applied voltage to fluid, generates electrolytically generated thing, can continuously manufacture to include and be somebody's turn to do The fluid of electrolytically generated thing.

According to the present invention, to being configured in the inclined mode relative to vertical direction, be processed electrode for electrolysis fluid stream Road is arranged to fluid side flowing on the side under in stream between electrode, therefore can efficiently generate electrolytically generated thing.This point The experiment carried out by the present inventor etc. is confirmed.

Think that the reason for efficiently generating electrolytically generated thing is as follows.

In the electrolysis unit of the present invention, gas is generated by the electrode reaction of lower electrode, therefore in lower electrode On can produce bubble, can make the bubble in the way of the flow direction for crossing fluid to upper electrode float.By by the bubble The flowing of fluid that produces of floating, the fluid near fluid and upper electrode for can stir, mixing near lower electrode can promote Enter the electrode reaction of upper electrode.In addition, promoting the fluid of the upstream vicinity of lower electrode with the movement of bubble upwards Portion's electrode direction movement, therefore, in the fluid near the downstream of lower electrode, the ratio of the liquid component of electrolysis process is carried out Example is reduced.Therefore the formation efficiency of electrolytically generated thing can be improved.

Description of the drawings

(a) (b) of Fig. 1 is the summary sectional view of the electrolysis unit of an embodiment of the invention, (c) is for illustrating The upper electrode figure overlap with lower electrode during A observations electrolysis unit from vertical direction, (d) be for illustrate from bottom Upper electrode during the vertical direction B observation electrolysis units in the main face of the electrode figure overlap with lower electrode.

(a) (b) of Fig. 2 is the summary sectional view of the electrolysis unit of an embodiment of the invention, (c) is for illustrating The upper electrode figure overlap with lower electrode during A observations electrolysis unit from vertical direction, (d) be for illustrate from bottom Upper electrode during the vertical direction B observation electrolysis units in the main face of the electrode figure overlap with lower electrode.

(a) of Fig. 3 is the summary sectional view of the electrolysis unit of an embodiment of the invention, (b) be for explanation from The upper electrode figure overlap with lower electrode during vertical direction A observation electrolysis units, is (c) from electric with bottom for explanation Upper electrode during the vertical direction B observation electrolysis units in the main face of the pole figure overlap with lower electrode.

Fig. 4 is the summary sectional view of the electrolysis unit of an embodiment of the invention.

Fig. 5 is the summary sectional view of the electrolysis unit made in electrolytic experiment.

(a) of Fig. 6 is the summary sectional view of the electrolysis unit of an embodiment of the invention, and (b)～(d) is the electrolysis The summary sectional view of the component parts of device.

(a) (b) of Fig. 7 is the summary sectional view of the electrolysis unit of an embodiment of the invention.

Fig. 8 is the summary sectional view of the electrolysis unit of an embodiment of the invention.

(a) of Fig. 9 is the summary sectional view of the electrolysis unit of an embodiment of the invention, and (b)～(f) is the electrolysis The summary sectional view of the component parts of device.

(a) (b) of Figure 10 is the schematic configuration diagram of the electrolysis unit of an embodiment of the invention.

Figure 11 is the schematic configuration diagram of the electrolysis unit of an embodiment of the invention.

Figure 12 is the coordinate diagram of the measurement result for illustrating electrolytic experiment.

Figure 13 is the figure for illustrating the flowing of fluid between electrode in stream and bubble.

(a) of Figure 14～(c) is the summary sectional view of the electrolysis unit made in electrolytic experiment.

(a) (b) of Figure 15 is the summary sectional view of existing electrolysis unit.

Figure 16 is the approximate three-dimensional map of existing device for producing electrolytic water.

Figure 17 is the figure of the internal structure for schematically showing existing device for producing electrolytic water.

Figure 18 is the coordinate diagram of the measurement result for illustrating electrolytic experiment.

Figure 19 is the schematic configuration diagram of the electrolysis unit made in electrolytic experiment.

(a) of Figure 20～(c) is the summary sectional view of the electrolysis unit of an embodiment of the invention.

Specific embodiment

The electrolysis unit of the present invention is characterised by possessing electrolysis cells, and above-mentioned electrolysis cells possess processed fluid stream To, inflow entrance and flow export, above-mentioned electrode for electrolysis relative to vertical direction to inclining for road, least one set electrode for electrolysis Oblique mode is configured, and including the upper electrode and lower electrode of mutual relative configuration, above-mentioned processed fluid flowing path is arranged Into：From downside in stream between electrode of the fluid flowed into from above-mentioned inflow entrance between above-mentioned upper electrode and above-mentioned lower electrode Side flowing upwards, flows out from above-mentioned flow export.

It is preferred that in the electrolysis unit of the present invention, electrode for electrolysis is to being configured to the angle of inclination relative to vertical direction 50 degree are less than more than 0 degree.

According to this composition, the electrolytic efficiency of electrolysis cells can be improved.This point is carried out by the present inventor etc. Electrolytic experiment confirmed.

It is preferred that in the electrolysis unit of the present invention, processed fluid flowing path has the upstream-side-end of stream between close electrode Upstream lateral bend stream or close electrode between stream end of downstream side downstream lateral bend stream.

There is upstream lateral bend stream or downstream lateral bend stream by making processed fluid flowing path, can be by electrolysis The gas that reaction is produced efficiently is discharged from stream between electrode, therefore can suppress to be reduced because gas is detained the electrolytic efficiency for causing.

In addition, there is upstream lateral bend stream by making processed fluid flowing path, the liquid in processed fluid flowing path can be made Turbulization in the flowing of body.By arranging bending stream at electrode, the impact of the turbulent flow produced in bending stream Stream between electrode can be extended to.Thus, sufficiently stirring effect can be provided from the entrance of stream between the electrode for less producing bubble Really, therefore the diffusion of material near electrode surface can be promoted, electrolytic efficiency can be improved.

In addition, there is downstream lateral bend stream by making processed fluid flowing path, even if existing not in stream between electrode The gas that can fully dissolve, also can be stirred again in bending stream.For example, to the water-soluble of the material with chlorine atom In the case that liquid carries out electrolysis to generate hypochlorous acid class, according to condition it some times happens that chlorine is not sufficiently dissolved leads in the aqueous solution The situation for causing the formation efficiency of hypochlorous acid class to reduce, but according to this composition, can promote chlorine to the dissolving of the aqueous solution and to secondary The conversion of chloric acid class, therefore the electrolytic efficiency of reality can be improved.

It is preferred that in the electrolysis unit of the present invention, upper electrode is set to anode, and lower electrode is set to negative electrode.

According to this composition, bubble can be produced by the cathode reaction of lower electrode, can be using stirring that bubble is brought Mix, mixed effect improves electrolytic efficiency.

It is preferred that in the electrolysis unit of the present invention, lower electrode has area bigger than the area of the electrode surface of upper electrode Electrode surface.

Lower electrode is being set into negative electrode, upper electrode is being set into anode, and to the aqueous solution of the material with chlorine atom In the case of electrolysis is carried out to generate hypochlorous acid class, if the electrode surface of upper electrode is substantially phase with the electrode surface of lower electrode With area, then near upper electrode, the stirring, the mixed effect that are brought due to bubble and chlorine can be made gas bubble, Reduce, the reduction of electrode effective area caused by bubble is inhibited, but there is no a this effect in lower electrode, and sometimes The effective area for being caused electrode due to the bubble of hydrogen is reduced.Therefore, the electrode effective area of lower electrode is smaller, forms For the principal element of cell reaction speed limit, sometimes cannot effectively utilizes upper electrode area.

By making the area of the electrode surface of lower electrode bigger than upper electrode, above-mentioned phenomenon can be alleviated, can effectively utilizes electricity Pole-face is accumulated, and can improve the electrolytic efficiency of the per unit area of upper electrode.

And, according to above-mentioned composition, the bubble of the hydrogen produced in the upstream side of lower electrode reaches the work of vertically top When near the upper electrode played a role for anode, can in its vicinity touch and be electrolysed in the upstream side of upper electrode And the aqueous solution that pH declines, therefore can be efficiently hypochlorous acid class by chlorine conversion.

And, according to above-mentioned composition, even if the hydrogen in lower electrode generation is square from straight up by the flow velocity of liquid To floating up to downstream, it also can be near close upper electrode, therefore chlorine can be converted into the ratio regular meeting of hypochlorous acid class and increase.It is special It is not, in the case where a large amount of hydrogen are produced, even if the downstream of upper electrode is blinded by electric field by bubble, to expect to pass through yet How many electric fields to the roundabout of the electrode stretched out in downstream or directly increases some turns with the oxidation of the bubble of electrode contact etc. Turn to the ratio of the chlorine of hypochlorous acid class.

It is preferred that in the electrolysis unit of the present invention, being also equipped with dilution part, above-mentioned fluid is the aqueous solution, and electrode for electrolysis pair sets It is set to the chlorine-containing compound included from the above-mentioned aqueous solution and electrochemically generates hypochlorite ion, the aqueous solution of flow export Containing the hypochlorite ion that weight ratio is more than 4000ppm, dilution part is arranged to generate the secondary chlorine containing discharging from flow export The dilution of the aqueous solution of acid ion, dilution is below pH7.5.

According to this composition, containing hypochlorite ion and the discharge of chlorine is inhibited, and can be imitated with high electrolysis Rate manufacture pH is less than 7.5 electrolysis water.

It is preferred that in the electrolysis unit of the present invention, electrolysis cells are arranged to electrochemically from chlorine-containing compound generation time Chloranion, upper electrode is set to anode, and lower electrode is set to negative electrode.

According to this composition, the bubble of the hydrogen produced by the cathode reaction of lower electrode can be to cross flow velocity direction Mode is moved near upper electrode, therefore can promote the liquid near the liquid and negative electrode near anode in electrolysis cells Stirring.In addition, as the bubble of hydrogen is to the movement near anode, the alkaline water near negative electrode is moved near anode, The chlorine produced by anode reaction can be contacted with the aqueous solution of meta-alkalescence, therefore can promote chlorine turning to hypochlorous acid class etc. Change.

It is preferred that in the electrolysis unit of the present invention, the flow path cross sectional area of stream is the electrolysis on minimum direction between electrode Among the section of unit, the face including upper electrode not including lower electrode is set into C, will be including upper electrode and bottom electricity The face of both pole is set to D, and when will not be set to E including the face of lower electrode including upper electrode, upper electrode and bottom are electric Pole is configured to：Face C is top, and most on the lower, face D is located between face C and face E face E.

According to this composition, even if the bubble produced in lower electrode flows to flow export due to flow velocity from vertical top Side, it also can be near close upper electrode.For example, carry out electrolysis in the aqueous solution to the material with chlorine atom to generate time chlorine In the case of acids, even if the hydrogen produced in the downstream of lower electrode is floated up to by the flow velocity of liquid from direction straight up Downstream, it also can be close near the upper electrode as anode, therefore chlorine can be converted into the ratio increase of hypochlorous acid class.

It is preferred that in the electrolysis unit of the present invention, upper electrode bends to convex, lower electrode direction towards lower electrode Upper electrode bending is in a concave shape.And the preferably curvature of upper electrode is less than the curvature of lower electrode.

According to this composition, can make the bubble of the chlorine that produces in the upper electrode as anode etc. from electrode central portion to End is discharged, and the effective area that can suppress the electrode that bubble causes is reduced, and can improve the electrolytic efficiency of central portion.In addition, The bubble of the hydrogen etc. produced in the lower electrode as negative electrode will not be hindered by the bubble of chlorine etc. and can portion's electricity rapidly upward Pole moves about, therefore can increase stirring, mixed effect that the bubble produced in lower electrode is brought.By being electrolysed generation In the case of hypochlorous acid class, stirring, mixed effect promotion conversion of the chlorine to hypochlorous acid class that the bubble is brought can be passed through.By This can also reduce the bubble of chlorine, therefore can further suppress the reduction of the effective area of electrode, can further improve electrolysis Efficiency.

In addition, bubble from the central portion of upper electrode to end movement so as to producing the flow velocity from central portion to end direction Vector, compared with existing electrode unit structure, the flow velocity of central portion accelerates and slack-off in end flow velocity, can suppress in central portion The deviation of the electrolyte of flowing and the electrolyte generation electrolysis degree in endwall flow.

And, the bubble of central portion in upper electrode can be made few with the bubble in end, therefore often compare in flow velocity Fast central portion, electrolytic efficiency rises, therefore can further suppress electrolyte and the electricity in endwall flow in central portion flowing The deviation of the electrolysis degree of solution liquid.

It is preferred that in the electrolysis unit of the present invention, at least a portion in upper electrode is cancellous electrode, on top The side (hereinafter referred to as rear side) contrary with lower electrode of electrode is provided with space.Electrolysis unit further preferably of the invention Possesses the electrode that at least a portion in the wall in above-mentioned space is electrically connected with upper electrode.

According to this composition, can by the bubble on upper electrode support or oppose surface side discharge, accordingly, it is capable to suppress because of upper electrode Face toward electrode side face be covered entirely with the air bubbles and cause electrode effective area reduce, electrolytic efficiency can be improved.In addition, In the case of by electrolytically generated hypochlorous acid class, the situation that the hydrogen gas bubbles come from lower electrode rising are hindered by the bubble of chlorine Fewer, the aqueous solution that can be easily higher with the pH of the neighbouring generation in upper electrode is contacted, therefore can efficiently by chlorine Gas is converted into hypochlorous acid class.In addition, according to above-mentioned composition, also can be entered by the gap portion of mesh in the electrode for being arranged at wall Row electrolysis.Thus, it is possible to further increase electrode effective area.

It is preferred that in the electrolysis unit of the present invention, lower electrode is cancellous electrode.

Think according to this composition, from the point of view of upper electrode, the part meeting of the bubble produced on the surface of lower electrode Grown in the way of covering the gap of mesh.Thus, compared with the electrode of the electrode surface with smooth planar, energy Reduce the ratio for being covered entirely with the air bubbles and becoming invalid electrode area.

In addition, if at least one party or both sides of the upper electrode either in lower electrode uses mesh electrode, then can lead The convex-concave for causing electrode surface becomes big, is difficult to form laminar flow in stream between electrode.Thus, whirlpool is easily formed between electrode in stream Stream, turbulent flow, can promote stripping of the bubble from electrode.In addition, in the case of by electrolytically generated hypochlorous acid class, bubble can be made long PH of the micro-bubble of the big chlorine of specific surface area before big near stripping electrode with the upper electrode relatively low aqueous solution Contact, therefore chlorine can rapidly dissolve and be converted into hypochlorous acid class.In addition, can also promote the stirring of electrolyte, therefore can be higher Carry out to effect the dissolving and the conversion to hypochlorous acid class of chlorine in electrolysis cells.

It is preferred that in the electrolysis unit of the present invention, possessing bubble guiding piece between upper electrode and lower electrode.It is preferred that The bubble guiding piece is the component of tabular detached with upper electrode and lower electrode, the component of the tabular from upper electrode and The position of lower electrodes parallel is obliquely installed.Additionally, it is preferred that the component of the tabular is with substantially perpendicular to upper electrode and bottom The mode of electrode is arranged.

According to this composition, after a part for the bubble that the surface of lower electrode produces rises to approximate mid-section, by gas The direct Reroute of bubble guiding piece, or with the liquid stream after being changed by bubble guiding piece by Reroute indirectly.Thus, Compared with when without bubble guiding piece, the track of bubble is complicated.In addition, the turbulent flow produced at bubble guiding piece rear can be utilized Electrolyte is stirred.In addition, using bubble guiding piece bubble can be suppressed to be integrated each other and become big, therefore bubble is molten Solution property is good.Thus, compared with when without bubble guiding piece, the bubble produced in lower electrode is electric near upper electrode The probability of the liquid contact of solution further increases.Bubble is not only, the electrolysis water near upper electrode or lower electrode also can Affected by the turbulent flow that bubble guiding piece is produced, therefore the electrolysis in addition to bubble, near upper electrode or lower electrode Water also can be stirred.Thus, the diffusion speed limit of cell reaction is significantly improved, and is promoted by the mixing of bubble The dissolving of bubble.Thus, cell reaction is generally promoted, therefore electrolytic efficiency is improved.

It is preferred that in the electrolysis unit of the present invention, bubble guiding piece is column detached with upper electrode and lower electrode Component, axle and the upper electrode and lower electrode of the post of the component are substantially parallel arranged.

According to this composition, the movement of bubble and the flowing of liquid can be made unnecessarily not to be hindered, and be made effectively The reduction of electrode area becomes bottom line, and produces mixing effect to bubble, liquid.

It is preferred that in the electrolysis unit of the present invention, electrolysis cells possess：1st electrode suppor, it is fixed with lower electrode；The 2 electrode suppors, it is fixed with upper electrode；And sept, it is configured between the 1st electrode suppor and the 2nd electrode suppor, From upper electrode and lower electrode overlapped direction observation sept when, at least a portion of sept and upper electrode and Lower electrode is overlapped.And preferably in the 1st electrode suppor or the 2nd electrode suppor, the part of at least fixed electrode is Concavity, the face of fixed electrode is more than the thickness of fixed electrode with the distance (depth of recess) in the face of sept.

According to this composition, mixing effect can be produced to bubble, liquid, even and if causing electrode to stick up for some reason Bent, the fixed of electrode loosens, and can also reduce the possibility of two electrode contacts.Efficiency and peace thus, it is possible to improve electrolysis unit Complete both property.In addition, interelectrode distance can be easily varied by changing the thickness of sept, therefore can easily change It is all size being consistent with purpose, therefore easily carries out the sharing of the parts such as electrode suppor.

It is preferred that in the electrolysis unit of the present invention, possess from the part and upper electrode with processed fluid flowing path or The jut emerged in the parallel face in the surface of person's lower electrode, at least a portion of jut is in forming processed fluid stream On the plane of symmetry in the structure on road.

It is that the flow velocity near electrode central authorities is very fast near the central authorities of stream between electrode in existing structure, therefore at this The time that the electrolyte of part flowing is electrolysed is short.It is slower in end flow velocity in addition, therefore in the electricity of the part flowing The time that solution liquid is electrolysed is long.Thus, electrolyte will not be uniformly electrolysed, thus become generation concentration it is uneven it is main because Element.

In addition, when being set as being suitable in the electrolytic condition of the electrolyte of central portion flowing, in the electrolysis of endwall flow Liquid from midway just by overelectrolysis, or can not occur completely to be electrolysed and cause the area-inefficient of electrode.When being set as being adapted to When electrolytic condition in the electrolyte of endwall flow, will not fully be electrolysed in the electrolyte of central portion flowing.Any feelings Condition all cannot be efficiently electrolysed, but by arranging jut, the flow velocity that central portion can be reduced with very simple structure And improve the flow velocity of end, thus with can the uneven generation of inhibition concentration, or make the advantage that the efficiency of electrolysis improves.

It is preferred that in the electrolysis unit of the present invention, processed fluid flowing path is shaped as：Upper electrode, bottom is electric Pole, inflow entrance, flow export and jut are projected to along the face parallel with the electrode surface of upper electrode or lower electrode and cut In the case of in the normal direction in the section for taking, the width of upper electrode and lower electrode is relatively wide, inflow entrance, flow export and prominent The width in the portion of rising is narrow.

According to this composition, the uniformity of flow velocity can be improved, energy inhibition concentration is uneven, can improve electrolytic efficiency.

It is preferred that in the electrolysis unit of the present invention, in processed fluid flowing path, near the sectional area of the stream of flow export It is bigger than the sectional area of stream between electrode.

According to this composition, the deviation of the flow velocity near flow export can be suppressed, and be easily drained bubble.In addition, example Such as in the generation of hypochlorous acid class, even if generating unconverted chlorine, also can expect to stir at the big position of the sectional area of stream Effect and retention effect are mixed, thus, it is possible to expect that chlorine is promoted to the conversion of hypochlorous acid class.Therefore the raising of efficiency can be expected.

It is preferred that in the electrolysis unit of the present invention, this both sides of the upstream side and downstream of stream have respectively prominent between electrode The portion of rising.

In the case where the size of upper electrode and lower electrode is longer particularly on flow velocity direction, such as in upstream side There is a jut and downstream can again produce flow velocity near central authorities fast and slow in end flow velocity without in the case of in downstream Trend.In this case, by arranging jut in upstream side and this both sides of downstream, velocity deviation can be suppressed to become big.

It is preferred that in the electrolysis unit of the present invention, electrolysis cells possess：Upper electrode and lower electrode；Constitute and flowed between electrode The electrode suppor of the stream beyond road；And jut, at least a portion of jut and upper electrode, lower electrode, these The base material of electrode or the component that physically combined with these electrodes are combined, and are also combined with electrode suppor.

According to this composition, upper electrode or lower electrode can be fixed on into electrode suppor by arranging jut, because This does not need other fixed electrode.Therefore, composition, complex structure is not made to can be achieved with the electrolysis unit of the present invention.

It is preferred that in the electrolysis unit of the present invention, at least a portion of jut or the component comprising jut includes leading Electric material, including at least a portion of the component of the conductive material electrically connects with upper electrode or lower electrode.

According to this composition, the component for including the conductive material can be utilized to be fixed on upper electrode or lower electrode Electrode suppor, to upper electrode or lower electrode applied voltage, therefore does not need other for electrode applied voltage Lead-out wire.Therefore, composition, complex structure will not be made.In addition, it is not necessary that as existing electrode for electrolysis installs pin additional to Deng electrode terminal extraction part, components number (pin) can be reduced, pin assembly work can be reduced.In addition, drawing as other The method for going out electrode terminal, although have the method for lug in advance to electrode mounting terminal, but material can be produced in punching The waste of material, produces when installing additional and installs operation additional.In addition, though being difficult with from the leakage of lead division for electrolyte cheap O-ring according to the present invention, will not produce waste as above or operation sealing.And, although also at the back side of electrode The method of side extraction electrode terminal, but welding rod is overleaf welded with existing electrode.In the present invention also can be using weldering Connect, but even if not using welding, can also carry out the fixation of electrode and the extraction of electrode terminal.Therefore, because there is no welding Operation thus do not have the failure of welding, even if breaking down in the part of electrode terminal also can easily repair.If Welded, then need to divest weld seam and weld new welding rod or replacing electrode itself again.

It is preferred that in the electrolysis unit of the present invention, in the surface of jut is non-at least from the nearest position of comparative electrode Conductor.

According to this composition, can suppress to be electrochemically reacted on the surface of jut.

It is preferred that in the electrolysis unit of the present invention, stream between the electrode in the component with jut and composition electrode surface Interarea normal direction configured in parallel, electrode suppor and electrode are connected using the component.

Thus, upper electrode or lower electrode can be fixed on into electrode suppor with very simple method, to top electricity Pole and lower electrode applied voltage.

It is preferred that in the electrolysis unit of the present invention, being fixed with the 1st electrode suppor of lower electrode and being fixed with upper electrode The 2nd electrode suppor be essentially identical shape, and configured in mutual point-symmetric mode, in the 1st electrode suppor and the 2nd Sept is configured between electrode suppor, when the direction overlapped from upper electrode and lower electrode is observed, at least one of sept Divide Chong Die with upper electrode and lower electrode.

According to this composition, even if causing electrode warps, the fixed of electrode to loosen for some reason, also can reduce The possibility of two electrode contacts.Thus, the security of electrolysis unit can be improved.In addition, can be held by changing the thickness of sept Change places and change interelectrode distance, therefore can easily be changed to all size being consistent with purpose, therefore can easily carry out electricity The sharing of the parts such as pole support.

It is preferred that in the electrolysis unit of the present invention, when the direction overlapped from upper electrode and lower electrode is observed, sept It is Chong Die with the marginal portion of upper electrode and lower electrode.

According to this composition, can suppress be susceptible to the electrode edge generation electricity that electric field is concentrated and is susceptible to deteriorate Solution.Thus, stablize can electrolysis, and export license can be suppressed, realize long lifetime.

It is preferred that in the electrolysis unit of the present invention, electrolysis cells are arranged to enter the aqueous solution of the compound containing chlorine atom Row electrolysis, generate the hypochlorite ion of concentration equivalent to more than 4000ppm either chlorine molecule or both, by by it Dilute and generate the hypochloric acid water of below pH7.

In this case, the formation efficiency of hypochloric acid water can be significantly improved by using such scheme.

Hereinafter, using description of the drawings an embodiment of the invention.Composition shown in accompanying drawing, following record is example Show, the scope of the present invention is not limited by accompanying drawing, content shown in following record.

1st embodiment

(a), (b) of Fig. 1 is respectively the summary sectional view of the electrolysis unit of the 1st embodiment, and (c) of Fig. 1 is for saying Upper electrode when bright A from vertical direction observes the electrolysis unit shown in (a) of Fig. 1 figure overlap with lower electrode, Fig. 1's (d) be for explanation from the direction B vertical with the main face of lower electrode observe the electrolysis unit shown in (a) of Fig. 1 when Portion's electrode figure overlap with lower electrode.

The electrolysis unit 15 of the 1st embodiment is characterised by possessing electrolysis cells 10, and electrolysis cells 10 possess processed , to 5, inflow entrance 8 and flow export 9, electrode for electrolysis is to 5 with relative to vertical for fluid flowing path 7, least one set electrode for electrolysis Direction and inclined mode is configured, and including the upper electrode 3 and lower electrode 4 of mutual relative configuration, and be arranged to Carry out generating the electrode reaction of gas in lower electrode 4, processed fluid flowing path 7 is arranged to：The fluid flowed into from inflow entrance 8 exists The side flowing on the side under in stream 6, flows out from flow export 9 between the electrode between upper electrode 3 and lower electrode 4.

In the electrolysis unit 15 (electrolysis cells 10) of the 1st embodiment, the upper electrode 3 of tabular and the bottom of tabular are electric Casing 1 is fixed in an opposing fashion in pole 4, and stream 6 between electrode are formed between upper electrode 3 and lower electrode 4.Additionally, By electrode for electrolysis to 5 with relative to vertical direction, inclined mode is configured when, electrode above is upper electrode 3, underlying electrode is lower electrode 4.

Electrolysis cells 10 are the devices with processed fluid flowing path 7, are the component units of electrolysis unit 15.In FIG, Electrolysis unit 15 includes 1 electrolysis cells 10, but electrolysis unit 15 can also include multiple electrolysis cells 10.Multiple electrolysis are single Unit 10 can be combined in the way of making processed fluid flowing path 7 become parallel connection, or so that processed 7 one-tenth of fluid flowing path Mode for series connection is combined.

Casing 1 is arranged to form processed fluid flowing path 7 together with upper electrode 3 and lower electrode 4.The material of casing 1 Material can use the fluid to flowing in processed fluid flowing path 7 and have indefatigable material by the subsidiary gas for generating of electrolysis Material.Specifically, it is contemplated that durability, the material of casing 1 can use fluororesin, vinyl chloride resin, acrylic resin, acrylic acid The resins such as resin.

Casing 1 can have tubular structure, it is possible to have multiple Component compositions are formed into processed fluid flowing path 7 Structure.In the case where casing 1 has tubular structure, upper electrode 3 and lower electrode 4 can be fixed on the inwall of tubular structure On face.In the case where casing 1 has the structure of multiple Component compositions, it is also possible to by the way that the 1st of upper electrode 3 will be fixed with Component forms processed fluid flowing path 7 with the 2nd Component composition for being fixed with lower electrode 4.In this case, it is also possible to The 3rd component is clipped between 1st component and the 2nd component.In addition, the component or casing 1 that constitute casing 1 can also fix top The electrode suppor of electrode 3 or lower electrode 4.

Processed fluid flowing path 7 is arranged to：Fluid from the inflow of inflow entrance 8 is between upper electrode 3 and lower electrode 4 The side flowing on the side under in stream 6, flows out from flow export 9 between electrode.Inflow entrance 8 can pass through pump and connect with the tank of electrolytic solution Connect.Thus, the electrolytic solution stream in tank can be made to processed fluid flowing path 7, electrolysis process can be carried out.In addition, flow export 9 can be with Accumulation electrolysis process after fluid tank, electrolysis is processed after liquid pushing tube, dilute from fluid to the position conveying using the fluid Release the connection such as portion.

In addition, by make fluid between electrode in stream 6 under on the side side flowing, can will upper electrode 3 or under The gas that portion's electrode 4 is produced efficiently is discharged from stream between electrode 6, the drop of electrolytic efficiency caused by suppressing to be detained because of gas It is low.In addition, inflow entrance 8 can be on the lower set in the lower end than stream between electrode 6, more upper than the upper end of stream between electrode 6 Flow export 9 is set.Thus, can be by the gas produced in upper electrode 3 or lower electrode 4 efficiently from the row of stream between electrode 6 Go out, the reduction of electrolytic efficiency caused by suppressing to be detained because of gas.

Stream 6 between the part and electrode of processed fluid flowing path 7 including casing 1.Preferably be processed fluid flowing path 7 Internal face include surface and the surface of as far as possible narrow and small casing 1 of the electrode for electrolysis as broad as possible to 5.According to this Constitute, the electrode surface for carrying out cell reaction included in the internal face that can make processed fluid flowing path 7 becomes big, can make to electrolysis Do not have contributive surface to tail off as far as possible.If making electrode surface become big, sufficiently electrolysis can be carried out with low current density anti- Should, therefore electrode life of the electrode for electrolysis to 5 can be extended, in addition, can also improve electrolytic efficiency.In addition, if making to electrolysis Do not have contributive surface to become narrow and small, then under identical electrolysis ability the internal volume of electrolysis cells 10 can be made to diminish, therefore can improve The starting characteristic of electrolysis unit 15.In the case of using the manufacture electrolysis water of electrolysis unit 15, can accelerate to be electrolysed the upper of water concentration Rise.

Electrode for electrolysis includes upper electrode 3 and lower electrode 4 to 5.Electrolysis cells 10 shown in Fig. 1 have one group of electrolysis With electrode pair 5, but there can also be multigroup electrode for electrolysis to 5.

Upper electrode 3 and lower electrode 4 are with the main face (electricity of the main face (electrode surface) of upper electrode 3 and lower electrode 4 Pole-face) relative mode configures.In addition, upper electrode 3 and lower electrode 4 are arranged in the main face and bottom of upper electrode 3 Stream 6 between electrode are formed between the main face of electrode 4.In addition, upper electrode 3 and lower electrode 4 can be with the masters of upper electrode 3 The mode for wanting face almost parallel with the main face of lower electrode 4 is arranged.Stream 6 is the one of processed fluid flowing path 7 between the electrode Part.According to this composition, the stream 6 between electrode can be flowed by the applied voltage between upper electrode 3 and lower electrode 4 Dynamic fluid carries out electrolysis process, can generate the fluid containing electrolytically generated thing.

Alternatively, it is also possible to be that upper electrode 3 bends to convex towards lower electrode 4, lower electrode 4 is towards upper electrode 3 Bending is in a concave shape.And, the curvature of upper electrode 3 can also be less than the curvature of lower electrode 4.

Additionally, being connected with the distribution for providing potential difference between electrode, the distribution to upper electrode 3 and lower electrode 4 It is connected with supply unit.The distribution can also be the electric conductivity for upper electrode 3 or lower electrode 4 to be fixed on casing 1 Component.

It is anode that upper electrode 3 and lower electrode 4 can be arranged to upper electrode 3, and lower electrode 4 is negative electrode, it is also possible to It is negative electrode to be arranged to upper electrode 3, and lower electrode 4 is anode.

In addition, upper electrode 3 and lower electrode 4 are arranged to carry out producing the electrode reaction of gas in lower electrode 4.By This, can efficiently generate electrolytically generated thing.In addition, carrying out producing the electrode of gas in both upper electrode 3 and lower electrode 4 In the case of reaction, the yield that upper electrode 3 and lower electrode 4 can be arranged to the bubble for making lower electrode 4 is more.

Upper electrode 3 and lower electrode 4 can be fixed on casing 1.Upper electrode 3 or lower electrode 4 can utilize screw Component is fixed on casing 1, it is also possible to be fixed on casing 1 using bonding agent.In addition, upper electrode 3 or lower electrode 4 can be consolidated It is scheduled in the plane of casing 1 or on curved surface, it is also possible in being fixed on the groove of casing 1.In the electrolysis unit 10 shown in Fig. 1, Upper electrode 3 and lower electrode 4 are arranged in the groove of casing 1, so that not producing the side of step in processed fluid flowing path 7 Formula is arranged.

The shape of upper electrode 3 and lower electrode 4 can be plane tabular, or curved surface tabular.In addition, top is electric Pole 3 and lower electrode 4 can be square, or circles.In addition, upper electrode 3 and lower electrode 4 can be substantially phase Shape together, or different shapes.The upper electrode 3 and lower electrode 4 included in electrolysis cells 10 shown in Fig. 1 be Square tabular, with substantially the same shape.In addition, the size that can make upper electrode 3 and lower electrode 4 is for for example long side 8cm, minor face is 3cm.

In addition, upper electrode 3 and lower electrode 4 can also have eyed structure, it is possible to have perforation structure, can be with With porous structure.

In addition, in the case where at least a portion of upper electrode 3 has eyed structure or perforation structure, it is also possible to The side (rear side) contrary with lower electrode 4 of upper electrode 3 is provided with space.Alternatively, it is also possible on the wall in the space It is provided with the auxiliary electrode electrically connected with upper electrode 3.Thus, can by the bubble on the electrode surface of upper electrode 3 support or oppose surface side row Go out, effective electrode area can be suppressed to reduce.In addition, electrode reaction can be carried out on auxiliary electrode, become can effective electrode area Greatly.

Upper electrode 3 and lower electrode 4 are formed by conductive materials such as metal materials.In addition, upper electrode 3 and bottom electricity Pole 4 can use insoluble electrode.In addition, upper electrode 3 and lower electrode 4 can also have and supporting or being coated with its surface The structure of the catalyst such as Pt, Pd, Ir, Ru.Thus, cell reaction can efficiently be carried out.

For example, the electrode as negative electrode in upper electrode 3 and lower electrode 4 can be set to comprising Ti, Pt or other gold The electrode of category, the electrode as anode in upper electrode 3 and lower electrode 4 is set to electrode, Pt comprising Ir, Ru etc. no Insoluble electrode.

Upper electrode 3 and lower electrode 4 (electrode for electrolysis is to 5) are configured in the inclined mode relative to vertical direction. In addition, upper electrode 3 and lower electrode 4 with by least a portion of upper electrode 3 be configured to be located at lower electrode 4 it is vertical on The mode of side is arranged.

In addition, upper electrode 3 and lower electrode 4 can be configured to be less than more than 0 degree relative to the angle of inclination of vertical direction 50 degree.In addition, the angle of inclination can be set to less than more than 5 degree 45 degree, in addition, less than more than 15 degree 32 degree can be set to.Additionally, inclining Rake angle is the angle of inclination in the face (main face, electrode surface) relative with lower electrode 4 of upper electrode 3, or lower electrode 4 The face (main face, electrode surface) relative with upper electrode 3 angle of inclination.It is preferred that the angle of inclination and bottom of upper electrode 3 The angle of inclination of electrode 4 is substantially the same.Thus, interelectrode distance can be made substantially to fix, current convergence can be suppressed Occur.

By being configured so that electrode for electrolysis to 5, electrolytic efficiency can be improved.

In the electrolysis cells 10 shown in Fig. 1, upper electrode 3 and lower electrode 4 are configured in the way of angle of inclination is as θ. In addition, as (d) of Fig. 1, upper electrode 3 and lower electrode 4 are configured to：From vertical with the main face of lower electrode 4 When direction B is observed, the upper electrode 3 and lower electrode 4 for being essentially formed objects is substantially overlapped in entire surface.In addition, As (c) of Fig. 1, upper electrode 3 and lower electrode 4 are configured to：When A from vertical direction is observed, upper electrode 3 and bottom Electrode 4 is overlapped in overlapping region 16.In addition, electrolysis cells 10 are arranged to processed fluid from the lower lateral of stream between electrode 6 Upside flowing, is arranged to carry out the electrode reaction of generation gas (bubble 11) in lower electrode 4.

In this electrolysis cells 10, as (b) of Fig. 1, by the electrode reaction of lower electrode 4 in lower electrode 4 Upper generation bubble 11, can make the bubble 11 cross the flow direction of fluid and float to upper electrode 3.Using by the bubble 11 The flowing of the fluid that floating is produced, can be stirred, mix to the fluid near the fluid near lower electrode 4 and upper electrode 3 Close, the electrode reaction of upper electrode 3 can be promoted.In addition, the fluid of the upstream vicinity of lower electrode 4 is with the movement of bubble 11 It is promoted to the movement of the direction of upper electrode 3, therefore, in the fluid near the downstream of lower electrode 4, carry out being electrolysed process The ratio of liquid component is reduced.Therefore the formation efficiency of electrolytically generated thing can be improved.

By electrode for electrolysis to 5 generate electrolytically generated things for example can be hypochlorous acid class.In this case, can by from The aqueous solution of alkali metal chloride is fed to processed fluid flowing path 7 (stream 6 between electrode) by inflow entrance 8, to upper electrode 3 with Applied voltage to be carrying out chemical equation described above (1)～cell reaction as (4) between lower electrode 4, can manufacture time Chlorate aqueous solution's (electrolysis water).

In addition, in this case, energy applied voltage causes upper electrode 3 to become anode, and lower electrode 4 becomes negative electrode. Thus, H can be produced in lower electrode 4₂The bubble of gas, can utilize the floating of the bubble to be stirred to the aqueous solution, mix, energy Improve the formation efficiency of hypochlorous acid class.In addition, the aqueous solution near anode can be suppressed to become highly acid, therefore above-mentioned chemistry can be made The reaction speed of reaction equation (2) is accelerated.Accordingly, it is capable to improve the formation efficiency of hypochlorous acid class.

2nd embodiment

(a), (b) of Fig. 2 is respectively the summary sectional view of the electrolysis unit of the 2nd embodiment, and (c) of Fig. 2 is for saying Upper electrode when bright A from vertical direction observes the electrolysis unit shown in Fig. 2 (a) figure overlap with lower electrode, Fig. 2's (d) be for explanation from the direction B vertical with the main face of lower electrode observe the electrolysis unit shown in Fig. 2 (a) when top The electrode figure overlap with lower electrode.

In the electrolysis unit shown in Fig. 1, upper electrode 3 and lower electrode 4 are configured to when observing from direction B, top Electrode 3 and lower electrode 4 are substantially overlapped in entire surface, but in the electrolysis unit 15 of the 2nd embodiment, both configure For the position that upper electrode 3 is located at upper.Specifically, as (d) of Fig. 2, hanging down from the main face with lower electrode 4 When straight direction B is observed, upper electrode 3 and lower electrode 4 are overlapped in overlapping region 17, but include in upper electrode 3 Upper area is not overlap with lower electrode 4, and the lower area included in lower electrode 4 is not overlap with upper electrode 3.

In addition, in the electrolysis unit 15 of the 2nd embodiment, the minimum direction of the flow path cross sectional area of stream 6 between electrode On electrolysis cells 10 section among, the face that do not include lower electrode 4 comprising upper electrode 3 is set into C, will be comprising top The face of both electrode 3 and lower electrode 4 is set to D, when the face for including lower electrode not comprising upper electrode 3 is set into E, on Portion's electrode 3 and lower electrode 4 are configured to：Face C is top, and most on the lower, face D is located between face C and face E face E.

According to this composition, upper electrode 3 and bottom electricity can be made as (c) of Fig. 2 when A from vertical direction is observed The overlapping region 16 that pole 4 overlaps becomes big.

In this electrolysis cells 10, as (b) of Fig. 2, bubble 11 is produced by the electrode reaction of lower electrode 4, The bubble 11 can be made to cross the flow direction of fluid and float to upper electrode 3.In addition, as (c) of Fig. 2, overlapping region 16 is broad, therefore the bubble 11 produced in lower electrode 4 can be made to float and the probability of close upper electrode 3 is uprised.Even if in addition, The bubble 11 floated by the flowing of the fluid flowing path 7 that is processed in the bubble 11 that lower electrode 4 is produced is flowed to downstream, Bubble 11 can be made with the close upper electrode 3 of high probability.Accordingly, it is capable to make stirring, the mixed effect change that bubble 11 brings greatly, can more have Effect ground promotes the electrode reaction of upper electrode 3.Therefore the formation efficiency of electrolytically generated thing can be improved.

For example, in the electrolysis unit 15 using the 2nd embodiment, lower electrode 4 is set into anode, upper electrode 3 is set For negative electrode, in the case of carrying out electrolysis to generate hypochlorous acid class to the aqueous solution of the material with chlorine atom, produce in lower electrode 4 Even if raw chlorine floats up to downstream by the flow velocity of liquid from direction straight up, it can also be close to the top electricity as negative electrode Near pole 3, therefore the ratio increase of hypochlorous acid class can be converted into.

3rd embodiment

(a) of Fig. 3 is the summary sectional view of the electrolysis unit of the 3rd embodiment, and (b) of Fig. 3 is from vertical for explanation The upper electrode figure overlap with lower electrode when direction A observes the electrolysis unit shown in (a) of Fig. 3, (c) of Fig. 3 be for Illustrate from the direction B vertical with the electrode surface of lower electrode observe the electrolysis unit shown in (a) of Fig. 3 when upper electrode and bottom The figure of the overlap of electrode.

In the electrolysis unit 15 shown in Fig. 1,2, the electrode surface of upper electrode 3 and the electrode surface of lower electrode 4 have in fact Identical size in matter, but in the electrolysis unit 15 of the 3rd embodiment, the electrode surface of lower electrode 4 is than upper electrode 3 Electrode surface is big.In addition, as (c) of Fig. 3, from the direction B observation electrolysis unit vertical with the electrode surface of lower electrode 4 15, and the extension elongation in downstream is set into D, the extension elongation of upstream side is set into U, when the extension elongation of horizontal side is set into S, Upper electrode 3 and lower electrode 4 can to meet D ＞ U >=S in the way of arrange.In addition, as (b) of Fig. 3, from vertical side To A observation electrolysis units 15 in the case of, can be arranged in the mode for making the entire surface of upper electrode 3 Chong Die with lower electrode 4 Portion's electrode 3 and lower electrode 4.

For example, lower electrode 4 is set into negative electrode, upper electrode 3 is set into anode, the water to the material with chlorine atom In the case that solution carries out electrolysis to generate hypochlorous acid class, if the electrode surface of the electrode surface of upper electrode 3 and lower electrode 4 is Roughly the same area, then near upper electrode 3, can be made due to stirring, the mixed effect of bubble chlorine gas bubble, Reduce, the reduction of electrode effective area is inhibited caused by bubble institute, but does not have this effect in lower electrode 4, sometimes Electrode effective area can be caused due to the bubble of hydrogen to reduce.Therefore, the electrode effective area of lower electrode 4 is smaller, into For the principal element of cell reaction speed limit, sometimes cannot effectively utilizes upper electrode 3 area.

By making the area of the electrode surface of lower electrode 4 bigger than upper electrode 3, above-mentioned phenomenon can be alleviated, can effectively be used Electrode area, can improve the electrolytic efficiency of the per unit area of upper electrode 3.

And, according to above-mentioned composition, the bubble of the hydrogen produced in the upstream side of lower electrode 4 reaches the work of vertically top When near the upper electrode 3 played a role for anode, can in its vicinity contact and be electrolysed in the upstream side of upper electrode 3 And the aqueous solution that pH declines, therefore can be efficiently hypochlorous acid class by chlorine conversion.

And, according to above-mentioned composition, even if the hydrogen produced in lower electrode 4 presses the flow velocity of liquid from direction straight up Downstream is floated up to, it also can be near close upper electrode 3, therefore chlorine can be converted into the ratio of hypochlorous acid class and increase.Especially It is, in the case where a large amount of hydrogen are produced, even if the downstream of upper electrode 3 is blinded by electric field by bubble, also to expect by electricity To the roundabout of the electrode stretched out in downstream or directly with the oxidation of the bubble of electrode contact etc. and how much increase some conversions For the ratio of the chlorine of hypochlorous acid class.

4th embodiment

Fig. 4 is the summary sectional view of the electrolysis unit of the 4th embodiment.

Electrolysis unit 15 shown in Fig. 1～3 has linear processed fluid flowing path 7, but in the 4th embodiment In electrolysis unit 15, the fluid flowing path 7 that is processed has the upstream lateral bend stream 25 of the upstream-side-end of stream 6 between close electrode Or between close electrode the end of downstream side of stream 6 downstream lateral bend stream 26.Additionally, electrolysis unit 15 can have upstream Both lateral bend stream 25 and downstream lateral bend stream 26, it is possible to have any one.

For example, at least one party of the inflow entrance 8 either in flow export 9 can be arranged to inflow entrance 8 or flow export 9 near stream The direction of stream 6 is not parallel between the direction on road and electrode.Thus, upstream lateral bend stream 25 or downstream lateral bend stream can be set Road 26.According to this composition, turbulization in the flowing of the liquid in processed fluid flowing path 7 can be made.

By the neighbouring setting upstream lateral bend stream 25 in electrode for electrolysis 5, the rapids produced in bending stream can be made The impact of stream extends to stream 6 between electrode.Thus, sufficient mixing effect can be provided from the entrance for less producing bubble, because This can promote the diffusion of the material near electrode surface, can improve electrolytic efficiency.

In addition, by arranging downstream lateral bend stream 26, even if there is the gas for failing abundant dissolving in stream 6 between electrode Body, also can again be stirred in bending stream.For example, electrolysis next life is carried out in the aqueous solution to the material with chlorine atom Into hypochlorous acid class in the case of, according to condition it some times happens that chlorine is not sufficiently dissolved and causes the formation efficiency of hypochlorous acid class The situation of decline, but according to this composition, the dissolving and the conversion to hypochlorous acid class of chlorine can be promoted, therefore can improve actual Electrolytic efficiency.

It is preferred that downstream lateral bend stream 26 be set to can be using its buoyancy to outflow to 5 bubbles for generating in electrode for electrolysis Mouth 9 floats.Thus, bubble can in time be discharged from processed fluid flowing path 7, the electrolytic efficiency caused because of bubble residence can be suppressed Reduction.

5th embodiment

(a) of Fig. 6 is the summary sectional view of the electrolysis unit of the 5th embodiment.In addition, (b) of Fig. 6～(d) is the 5th real Apply the summary sectional view of the component parts of the electrolysis unit of mode.

The electrolysis unit 15 of the 5th embodiment has packaging electrolysis cells 10.In the 5th embodiment, electrolysis is single Unit 10 includes 3 parts, and 2 therein is the 1st electrode suppor 31 and Fig. 6 that are fixed with lower electrode 4 shown in Fig. 6 (b) D the 2nd electrode suppor 32 for being fixed with upper electrode 3 shown in (), remaining 1 is configured in the 1st electrode as sept 33 Between the electrode suppor 32 of frame 31 and the 2nd.In addition, when the directions observation that electrode for electrolysis is overlapped to 5, at least the one of sept 33 Part is Chong Die to 5 with electrode for electrolysis.In addition, the upstream side and downstream of stream 6 is respectively equipped with jut 35 between electrode.Separately Outward, upstream lateral bend stream 25 and downstream lateral bend stream 26 are provided with.

Sept 33 is arranged to form stream 6 between electrode between upper electrode 3 and lower electrode 4.Additionally, it is preferred that the 1st At least the fix upper electrode 3 or the part of lower electrode 4 of the electrode suppor 32 of electrode suppor 31 and the 2nd is concavity, in fixation The face of portion's electrode 3 or lower electrode 4 to the distance (depth of recess) in the face contacted with sept 33 is more than fixed electricity The thickness of pole.Thus, mixing effect can be produced to bubble, liquid, even if also, causing electrode warps, electricity for some reason The fixed of pole loosens, and can also reduce the possibility of upper electrode 3 and the contact of lower electrode 4.Thus, it is possible to improve electrolysis unit Both 15 electrolytic efficiency and security.In addition, the He of upper electrode 3 can be easily varied by changing the thickness of sept 33 Distance between lower electrode 4, therefore all size being consistent with purpose can be easily changed to, therefore can easily realize electrode The sharing of the parts such as support.The material of metallic support 31,32 can for example be set to the resins such as acrylic resin, vinyl chloride resin.

In addition, in the electrolysis unit 15 shown in (a) in Fig. 6, fixing the screw 41 and fixed lower electrode of upper electrode 3 4 screw 41 becomes electrode terminal 45.The material of screw 41 can be set to metal material, for example, can be set to Titanium.

(a), (b) of Fig. 7 be for illustrating the electrolysis unit 15 shown in Fig. 6 (a) in fluid flowing outline section Figure.Additionally, (b) of Fig. 7 is the summary sectional view of the electrolysis unit 15 at the single dotted broken line F-F of Fig. 7 (a).

Flow velocity in commonly known stream is that the average speed V1 of central portion is fast, near the average speed V2 of the part of end Slowly.In addition, if other conditions are fixed, then the chemical change amount of the per unit volume being electrolysed is i.e. by electrolytically generated desired Composition concentration k to be substantially directly proportional by the time t that is electrolysed, be k ∝ t.Therefore, if being shaped as electrode is substantially rectangular Shape, the length in mean flow rate direction is roughly the same length L in central portion and end, then t=L/V, therefore k ∝ L/V.Cause This, the generation concentration of the desired composition in the aqueous solution of central portion flowing is k1 ∝ L/V1, is k2 ∝ L/V2 in end, if The index of concentration deviation adopts k1-k2, then k1-k2=L (1/V1-1/V2).

As (a), (b) of Fig. 7, if the upstream of stream 6 arranges jut 35 between electrode, jut 35 is relative The movement of liquid in stream becomes barrier, can guide fluid from central portion to end.Therefore, per unit sectional area flowing The amount of fluid tail off in central portion, become many in end.Therefore, if considered in system is simplified, on an average in central authorities Portion flowing flow velocity be V1-v, endwall flow flow velocity be V2-v, (v ＞ 0).Concentration deviation k1-k2=L (1/ now (V1-v) -1/ (V2-v)), as long as v meets V1-V2 ＞ v and can just make concentration deviation diminish.

6th embodiment

Fig. 8 is the summary sectional view of the electrolysis unit of the 6th embodiment.The electricity included in electrolysis unit 15 shown in Fig. 8 Solution unit 10 at least includes electrode suppor 30 of the electrode for electrolysis to the stream beyond stream 6 between 5 and composition electrode, with projection At least a portion of the component (being in fig. 8 electrode terminal 45) in portion 35 is with electrode for electrolysis to 5 or electrode for electrolysis to 5 Base material or the component for physically being combined to 5 with electrode for electrolysis are combined, and also are combined with electrode suppor 30.According to this Integrated structure, can be fixed on electrode suppor 30 to 5 by electrode for electrolysis.Therefore, composition, complex structure will not be made.In addition, root According to above-mentioned integrated structure, fixation of the energy intensified electrolysis electrode to 5 pairs of electrode suppors 30.Thus, electrolysis cells 10 can be improved Reliability.

In addition, jut 35 or combined with jut 35 at least one of component (being in fig. 8 electrode terminal 45) Dividing includes conductive material, and at least a portion of above-mentioned component can be electrically connected with electrode for electrolysis to 5.

In addition, the processed fluid of composition that can be in the surface by the component with jut 35 along electrode for electrolysis to 5 The normal direction configuration of the interarea of stream 7, and be connected with electrode suppor electrode.

For example, jut 35 and electrode terminal 45 can be set to the component of one.Electrode suppor 30 and electrode for electrolysis are to 5 There is the hole of the size for being suitable for electrode terminal 45 in the position of regulation.In electrode terminal 45, contrary with jut 35 At least appropriate position cutting of side has groove.Can use the nut 42 for being suitable for the groove that electrode for electrolysis is fixed on into electricity to 5 Pole support 30, and electrode terminal 45 can be passed through from the outside of electrode suppor 30 to electrode for electrolysis to 5 applied voltages.According to need To use o-ring 47, packing ring 48, spring washer 49, the generation thus, it is possible to suppress leakage.

In addition, the groove of female thread structure for example can also be arranged in the hole of electrode suppor 30, arrange in electrode terminal 45 The groove of external thread structure, the female thread structure is combined with external thread structure, thus connects metallic support 30 and electrode terminal 45 Close.According to this structure, do not use nut just electrode for electrolysis can be fixed on into electrode suppor 30 to 5.

In addition, as other methods, such as also electrode suppor 30 and electrode terminal 45 can be integrally formed.

According to this structure, electrode for electrolysis can be fixed on electrode suppor 30 to 5, electricity is applied to 5 to electrode for electrolysis Pressure, therefore do not need other for the lead-out wire to electrode for electrolysis to 5 applied voltages.Therefore, composition, structure will not be made multiple Hydridization.In addition, electrode for electrolysis can be fixed on into electrode suppor 30 to 5 with very simple method, electrode for electrolysis is applied to 5 Making alive.

In the surface of jut 35 also can be non-conductor at least from the nearest position of comparative electrode.For example can be by prominent Playing the surface in portion 35 carries out oxidation processes etc. and forms idioelectric film.Alternatively, it is also possible to coat jut 35 with resin etc. Surface.Thus, can suppress to be electrochemically reacted on the surface of jut 35, can suppress to generate unnecessary composition, generate concentration There is big variation.

7th embodiment

(a) of Fig. 9 is the summary sectional view of the electrolysis unit of the 7th embodiment.In addition, (b) of Fig. 9～(f) is the 7th real Apply the summary sectional view of the component parts of the electrolysis unit of mode.Additionally, (d) of Fig. 9 is at the chain-dotted line G-G of Fig. 9 (c) The summary sectional view of sept 33, (e) of Fig. 9 is the summary sectional view of the sept 33 at the chain-dotted line H-H of Fig. 9 (c).

The electrolysis unit 15 of the 7th embodiment has packaging electrolysis cells 10.In the 7th embodiment, electrolysis is single Unit 10 includes 3 parts, and 2 therein is the 1st electrode suppor 31 and Fig. 9 that are fixed with lower electrode 4 shown in Fig. 9 (b) The 2nd electrode suppor 32 for being fixed with upper electrode 3 shown in (f), remaining 1 is sept 33 shown in Fig. 9 (c)～(e), It is configured between the 1st electrode suppor 31 and the 2nd electrode suppor 32.In addition, in the electrolysis unit 15 shown in Fig. 9, will be interelectrode The opening 36 of sept is formed must be narrower than the electrolysis unit 15 shown in Fig. 6.In addition, sept 33 is configured to：From with bottom electricity When the vertical direction of the electrode surface of pole 4 is observed, the edge part and the edge part weight of lower electrode 4 of sept 33 and upper electrode 3 It is folded.Thus, can suppress to carry out cell reaction in the electrode edge for being susceptible to electric field concentration and being susceptible to deteriorate.Thus, energy Electrolysis process is stably carried out, and export license can be suppressed, make electrode for electrolysis to 5 long lifetimes.

8th embodiment

(a), (b) of Figure 10 is respectively the schematic configuration diagram of the electrolysis unit of the 8th embodiment.

The electrolysis unit 15 of the 8th embodiment possesses the electrolysis cells 10 of the 1st～7 embodiment, original fluid container 51 and dilute Release portion 53.Pipe arrangement 57 illustrates that the arrow also shows that the flow direction of the fluid in pipe arrangement with arrow.Electricity shown in (a) of Figure 10 Solution device 15 has following composition：Retaining 55 to accumulating in the thinning tank 54 as dilution part 53, injects by electrolysis cells 10 The solution after electrolysis process is carried out, and generates dilution.Electrolysis unit 15 shown in (b) of Figure 10 has following composition：Making In for the mixing unit 59 of dilution part 53, the solution after electrolysis process will be carried out using electrolysis cells 10 and is mixed with flowing water, and generated Dilution.In (a), (b) of Figure 10, distribution, basis of the electrode for electrolysis in electrolysis cells 10 not shown to 5 power supplies Liquid-feeding pump for needing to have etc..

According to this composition, the dilution comprising electrolytically generated thing can be manufactured.In addition, to the material with chlorine atom In the case that the aqueous solution carries out electrolysis to generate hypochlorous acid class, the dilution of the discharge for inhibiting chlorine can be generated.

9th embodiment

Figure 11 is the schematic configuration diagram of the electrolysis unit of the 9th embodiment.The electrolysis unit 15 of the 9th embodiment is except making Beyond by electrode for electrolysis to 5 electrolysis cells 10 configured in the inclined mode relative to vertical direction, with Figure 16, The same composition of existing device for producing electrolytic water 120 shown in Figure 17.In addition, the electrolysis unit 15 of the 9th embodiment is basic Action is also same with existing device for producing electrolytic water 120.

In electrolysis unit 15, it is generally desirable to, do not make magnetic valve 66, electrolysis cells 10, pump while switch 64 is opened 68 carry out action, but open magnetic valve 66 in appropriate timing, and water is fed in electrolysis unit 15 and Jing from feed water inlet 62 Cross pipe arrangement 65 to spray from ejiction opening 63.In addition, make liquid-feeding pump 68 work in appropriate timing, the electrolysis that will be stored in original fluid container 67 Stoste is fed to electrolysis cells 10.Power to electrolysis cells 10 from power supply (not shown) in appropriate timing, electricity is carried out to stoste Solution.Pipe arrangement 65 is supplied to by electrolytically generated high-concentration electrolytic water, is diluted to by the water flowed in pipe arrangement 65 appropriate Concentration.The pipe arrangements such as the sebific duct that the electrolysis water after dilution passes through appropriate connection from ejiction opening 63 are transported to electrolysis water supply centre.

When switching 64 closing, the power supply to magnetic valve 66, liquid-feeding pump 68, electrolysis cells 10 is cut in appropriate timing Disconnected, the action of electrolysis unit 15 stops.

In fact, setting optimal sequence according to purpose, such as on the basis of possessing various interlockings, it is being first turned on electricity After magnet valve, the stoste to remaining in electrolysis cells 10 during last time action starts stoste supply etc. after being somewhat electrolysed.

For example, in the case of the possibility of the electrolysis water for wanting to suppress generation high concentration as far as possible first, preferably by electromagnetism Valve 66, liquid-feeding pump 68, the order of electrolysis cells 10 are opened.

Conversely, in the case where the rising for wanting to make electrolysis water concentration accelerates, can be using pressing electrolysis cells 10, liquid-feeding pump 68th, the method for order opening of magnetic valve 66 etc..

In the case of still wanting to be cleaned with water after using electrolysis water in the case where action stops, as long as single electrolysis is closed After unit 10 and liquid-feeding pump 68, keep magnetic valve 66 to open the stipulated time, just can be cleaned during the about stipulated time.

In addition, in the case where the electrolysis water for wanting to avoid high concentration is accumulated in electrolysis cells 10, also can first close electricity Solution unit 10, then opens a period of time by liquid-feeding pump 68, is diluted with electrolytic solution or is almost replaced in electrolysis cells 10 High-concentration electrolytic water.In such a case, it is desirable to magnetic valve 66 is also opened.Certainly, these stostes and water are additionally to need Want, therefore in the case of continually Reusability, it is generally desirable to it is designed to that this action need not be carried out, this certainly need not Say.

Experimental example 1

Electrolysis unit as shown in Figure 1 is made, makes electrode for electrolysis next relative to the angle change of vertical direction to 5 Carry out electrolytic experiment.Electrode for electrolysis uses the electrode including the 1mm that long side is 8cm, minor face is 3cm thick titanium plate to 5 (referred to as Ti electrodes) and it is 8cm, minor face to be coated with the electricity of yttrium oxide in the 1mm of 3cm thick titanium plate by sintering process on long side Pole (referred to as Ir covers Ti electrodes).So that Ti electrodes are covered with Ir, and Ti electrodes are almost parallel, interelectrode distance is 1mm～5mm's In the range of mode, electrode for electrolysis is fixed on casing 1 made by acrylic resin to 5 to make electrolysis unit.In addition, will Supply unit is connected with electrode for electrolysis to 5 so that Ti electrodes are negative electrode, and it is anode that Ir covers Ti electrodes.

Changed in the way of making electrode for electrolysis to 5 angle of inclination for about -50 degree of degree～about+50 relative to vertical direction Angle is set and made electrolysis unit is configured, from downside processed fluid flowing path 7 press firm discharge supply 3～ 4% sodium-chloride water solution.Additionally, electrode for electrolysis to for it is vertical when, angle of inclination is 0 degree, covers Ti electrodes with Ir (positive Pole) in upside mode make electrode for electrolysis to incline when, angle of inclination is positive angle, with Ir cover Ti electrodes be in down When the mode of side makes electrode for electrolysis to inclining, angle of inclination is negative angle.

Then, the constant current using supply unit to electrode for electrolysis to 5 supply 5A, to sodium-chloride water solution electricity is carried out Solution process.In addition, applied voltage is for about between 4～5V.In addition, the aqueous solution after processing electrolysis carries out effective chlorine density (mg/ L measure).

Figure 12 illustrates the measurement result of effective chlorine density.From the point of view of this result, if so as to covering Ti as the Ir of anode Mode of the electrode in upside makes electrode for electrolysis incline to 5, can just improve the effective chlorine density of the aqueous solution after electrolysis is processed. Specifically, when making electrode for electrolysis incline in about 5 degree to about 45 degree of scope to 5, during with making electrode for electrolysis vertical to 5 Compare effective chlorine density and improve about 5%.In addition, when making electrode for electrolysis incline in about 15 degree to about 32 degree of scope to 5, Effective chlorine density improves about 10% compared with when making electrode for electrolysis vertical to 5.When electrode for electrolysis it is excessive to 5 inclination When, effective chlorine density is reduced, and same degree is become with effective chlorine density when vertical (0 degree) at about 50 degree.

Therefore, so that electrode for electrolysis to 5 relative to vertical direction angle of inclination be more than 0 degree be less than 50 degree of scopes Mode arranges electrolysis unit preferably, and electrode for electrolysis is preferably 5 degree～45 degree (improving about 5%) to 5 angle of inclination, more preferably Electrolysis unit is set in the way of becoming 15 degree～32 degree.In addition we know, by so that electric as the Ir covering Ti of anode A part for pole is located at the mode of the vertical top of the Ti electrodes as negative electrode and configures electrode for electrolysis to 5, processes can electrolysis The effective chlorine density of the aqueous solution afterwards is uprised, and can improve electrolytic efficiency.

Using various chlorine electrode materials, or using containing the muriatic aqueous solution such as sodium-chloride water solution, salt Mixed liquor of acid or both etc., or change the liquor charging amount of the aqueous solution, or enter electrolytic condition (voltage, the magnitude of current) change The same experiment of row, shows same trend.According to circumstances, also have at vertical (0 degree) and optimum tilt (0 degree～ About 50 degree) when effective chlorine density in the scope of evaluated error for same degree situation, but even in this case, To make cathode side in upper direction it is inclined in the case of, effective chlorine density has the trend of obvious reduction, with Figure 12 equally about About 10% is reduced when 23 degree, about 20% is reduced at about 45 degree.Therefore, although be expected to have vertical (0 degree) according to electrolytic condition For the situation of best angle, but some preferably how much are inclined in practical so that anode is in upper mode.Its reason is, Assembling tolerance is certainly existed when electrolysis unit is assembled into various equipment, in the situation of the actually used various equipment for assembling Under, might not use in the place of severity.Therefore, from vertical (0 degree) to anode-side, cathode side with same degree inclination In the case of, be preferably predisposed to effective chlorine density reduction less or effective chlorine density rise direction incline.Optimal Inclining can change according to structure, the composition of electrolysis of water solution, liquor charging amount, electrolytic condition of electrolysis unit etc., but As described above, can vibrate in real-world environment, rock, incline.In view of this point, such as be expected to be stayed in using form In the case of having 5 degree of surplus, preferably optimal inclination is set in 5 degree～45 degree of scope.Typically range prediction is 20 degree～30 degree of scope, but for the advantage of height for realizing that the electrolysis unit device to be assembled into can be reduced, can incline Use to 45 degree.

Additionally, in this experimental example, the high acrylic acid tree of the transparency is employed in casing 1 in order to observe the state of bubble Fat, but as long as the aqueous solution, the various electrolysed substances by electrolysis generation, gas of generation to being fed to electrolysis unit etc. With patience, certainly the various materials used in casing 1, if can ensure that desired reliability, could be used that Polypropylene etc..It is general next with regard to the material of casing 1 in the case where the aqueous solution, the gas of chlorine class is produced as this experimental example Say, vinyl chloride resin is most preferred at the height and processability of patience, aspect with low cost.

Although electrode for electrolysis is inclined to 5 by way of being so located at the vertical top of negative electrode with the part for making anode The reason for tiltedly configuration improves can electrolytic efficiency is still not clear, but thinks there is hypothesis below.

At negative electrode, it is believed that carry out the electrode reaction as above-mentioned chemical equation (4), H is produced₂.Produced H₂Than Compared with indissoluble solution, therefore nearly all become bubble.And think because electrode for electrolysis makes negative electrode be located at the vertical of anode 5 inclination Lower section, therefore H₂Bubble left due to its buoyancy negative electrode floating, move to the vicinity of anode.Therefore, produce in negative electrode Bubble can be moved in the way of the flow velocity direction for crossing the aqueous solution, so as to the aqueous solution near the aqueous solution and anode near negative electrode Stirring be promoted.In addition, H₂Bubble move near anode, therefore the aqueous solution of the meta-alkalescence near negative electrode is also transported It is sent near anode, therefore the chlorine as above-mentioned chemical equation (2) is promoted to the conversion of hypochlorous acid etc..In addition, The aqueous solution of negative electrode upstream vicinity is promoted to anode direction movement with moving for bubble, therefore, it is attached in the downstream of negative electrode In the near aqueous solution, the ratio that the liquid component of electrolysis process is carried out is reduced, therefore for electrolysis effectively plays a role.

Figure 13 be make electrode for electrolysis angle of inclination be stream between electrode in the case of 0 degree schematic diagram.To Electrode for electrolysis to being arranged to angle of inclination in the case of 0 degree, the aqueous solution stream flowed from bottom to top in stream between electrode The direction that the bubble that dynamic direction produces with the cell reaction by electrode surface floats from bottom to top is consistent.Therefore, as in Figure 13 Like that, the aqueous solution and bubble of closer negative electrode can be with more difficult mixed with the aqueous solution and bubble of closer anode for the arrow line for illustrating The state of conjunction is flowed between electrode in stream.

Electrode for electrolysis is made in the way of upper electrode is become by anode to the feelings that are arranged obliquely relative to vertical direction Under condition, if not being electrolysed also do not produce bubble, being also considered as the aqueous solution can flow in the same manner as Figure 13.But, carry out In the case that electrolysis particularly generates bubble, situation differs widely.

When bubble floats from cathode to anode in aqueous, in the bubble situation different from the velocity of the aqueous solution Under, resistance can be become mutually and carry out the exchange of momentum.In typical example, when there is bubble in hydrostatic, bubble meeting It is moved upward due to buoyancy, but it is also known that current can be produced with the motion.

Between inclined electrode in stream i.e. in the aqueous solution of a fluid stream with incline direction, produced bubble can be received To the power moved up due to buoyancy.Therefore, the moving direction of bubble is not parallel with the direction that the aqueous solution flows, and from bottom Electrode (negative electrode) to the direction of upper electrode (anode) is moved, and will also be upwards than the direction of aqueous solution flowing.Now, with gas The movement of bubble, the aqueous solution is also produced from lower electrode (negative electrode) to the motion of the direction of upper electrode (anode) movement.Thus, it is cloudy The extremely neighbouring aqueous solution produces the flowing moved about to anode.As a result, anode-side product and cathode side product enter The good mixing of row.

Inclined situation in the way of making electrode for electrolysis to becoming upper electrode by negative electrode is considered below, that is to say, that consider The coordinate diagram of Figure 12 is the situation at negative angle of inclination.In for example above-mentioned chemical reaction of bubble that the anode as lower electrode is produced Formula (1), (3) are chlorine, oxygen like that, but as above-mentioned chemical equation (2), chlorine is readily soluble in water and generates time chlorine Acid.Therefore, with the H produced in the negative electrode as upper electrode₂The bubble phase ratio of gas, produces in the negative electrode as lower electrode Bubble amount it is less.Therefore, the mixing effect that the bubble for producing in lower electrode brings is little.And, as upper electrode The more bubble of amount that produces of negative electrode move along cathode surface.Therefore, the area on the surface of the negative electrode being covered entirely with the air bubbles becomes Greatly, contact of the negative electrode with the aqueous solution can be hindered, electrolytic efficiency is reduced.It is taken as that playing detrimental effect to electrolysis.

Additionally, anode is set into upper electrode in this experimental example and more preferable result has been obtained, but can according to this hypothesis Know, according to situation about being electrolysed, sometimes through the more side's electrode of the bubble by generation lower electrode is set to, by what is produced The fewer side's electrode of bubble is set to upper electrode, can improve electrolytic efficiency.

Next, in order to confirm this it is assumed that the angle of inclination of electrode for electrolysis pair is set into 0 degree, making is such as (b) of Figure 14 Stagger 1cm's to upside in the upper end for making the upper end Ti electrodes that are used for negative electrode 22 that Ti electrodes are covered as the Ir of anode 21 like that Electrolysis unit and the upper end of negative electrode 22 is set to stagger to upside than the upper end of anode 21 the electrolysis dress of 1cm as 14 (c) of figure Put.Firm discharge supply sodium-chloride water solution is pressed to the processed fluid flowing path 7 of these electrolysis units from downside, in the He of negative electrode 22 The constant current of 5A is supplied between anode 21 carrying out electrolytic experiment.Other experiment conditions, assay method and above-mentioned electrolytic experiment Equally.

In the electrolytic experiment using the electrolysis unit for making anode 21 stagger to upside, the aqueous solution after electrolysis is processed has Effect cl concn (mg/L) is for about 65mg/L.In addition, in the electrolytic experiment using the electrolysis unit for making negative electrode 22 stagger to upside, The effective chlorine density (mg/L) of the aqueous solution after electrolysis process is for about 60mg/L.So, using making anode 21 stagger to upside Electrolysis unit experiment in obtain cell reaction product than the experiment that makes electrolysis unit that negative electrode 22 staggers to upside Efficiency high 1 one-tenth or so.

Shown in (a) of this point such as Figure 14, in the case where bubble is not produced, it is impossible to expect that what the effect of bubble brought stirs Mix mixed effect.In addition, in the case where bubble is produced, if the amount of bubble is same degree in both sides, then it is assumed that no matter which Upper, the effect of bubble is all substantially equal to individual electrode.

However, in the case of the different anode 21 of the bubbles volume for producing and negative electrode 22 are used as this experiment, situation is just It is different.In the case of this experiment, the chlorine for mainly producing from anode 21 is easily soluble in the aqueous solution, therefore bubbles volume is less, The bubbles volume for generating the negative electrode 22 of hydrogen is more.(b) of Figure 14 and (c) of Figure 14 are the figures for schematically showing the state. In the case of making anode 21 stagger to upside as (b) of Figure 14, when the bubbles volume produced by negative electrode 22 is enough, it is contemplated that Bubble can be moved near anode, can provide the effect for being stirred to the aqueous solution, mixing.

In the case where making negative electrode 22 stagger to upside (c) such as Figure 14, the bubble generated in negative electrode 22 cannot be moved Move near anode, it is contemplated that the effect for being stirred to the aqueous solution, mixing that bubble brings at least compared with (b) of Figure 14 is little. In the case where the effect of stirring, mixing is little, have been carried out being electrolysed the electrode of the aqueous solution of process along anode on the downside of anode Face rises, it is therefore expected that the electrolytic efficiency on the upside of anode can be reduced.In the case where stirring and mixing effect is big, fresh stoste Anode surface is supplied to, it is therefore expected that electrolytic efficiency can be improved.Therefore, the effect for the aqueous solution being stirred, being mixed that bubble brings Fruit qualitatively matches with experimental result.

Therefore, anode 21 is made to stagger to upside and obtain more preferable result in this experiment, but can according to this hypothesis Know, according to situation about being electrolysed, sometimes through the electrode for making generation bubble more lower section, the electricity less by bubble is produced are located at Pole is located at top, can improve electrolytic efficiency

Experimental example 2

Making possesses as shown in Figure 1 " longitudinal " type of inflow entrance 8 and flow export 9 between electrode in the path direction of stream 6 Electrolysis cells 10, as shown in Figure 4 upstream lateral bend stream 25 and downstream lateral bend stream be provided with by flow export 9 in the way of upward The electrolysis cells 10 of 26 " horizontal (upwards) " type and as shown in Figure 5 upstream lateral bend is provided with the mode directed downwardly of flow export 9 The electrolysis cells 10 of " horizontal (downward) " type of stream 25 and downstream lateral bend stream 26, carry out electrolytic experiment.

In electrolytic experiment, so that electrode for electrolysis is for about 23 degree and about 45 relative to the angle of inclination of vertical direction to 5 The mode of degree arranges electrolysis unit 15, and from downside sodium chloride water of the firm discharge to the supply of fluid flowing path 7 3～4% that is processed is pressed Solution, electrolysis process is carried out using electrode for electrolysis to 5.In addition, carrying out the effective chlorine density of the aqueous solution after electrolysis process (ppm) measure.Other conditions and experimental example 1 are identicals.Table 1 illustrates the result of electrolytic experiment.

Can clearly learn from table 1, the electrolytic efficiency of the electrolysis unit of " horizontal (upwards) " type is high.Although its reason is not true It is fixed, it is likely that being because：Between electrode the close upstream-side-end of stream upstream-side channel exist to a certain degree bending or The downstream-side channel presence of close end of downstream side bends to a certain degree, can more make the flowing randomization of a fluid stream or bubble, improves Electrolytic efficiency.

If fluid bubbly flow after bending is more smooth better, it is also contemplated that will come in and go out as (a) of Figure 20 Mouth is particularly outlet side stream and is located at vertical direction.

Consider from volume production easiness, then it is also contemplated that being arranged to erect with pipe portion 70 is matched somebody with somebody as (b), (c) of Figure 20 Nogata to.

[table 1]

Angle of inclination	Longitudinal type	Horizontal (upwards) type	Horizontal (downward) type
				23 degree	73ppm	77ppm	70ppm
45 degree	66ppm	73ppm	59ppm

Experimental example 3

The electrolysis cells 10 as shown in (a) of Fig. 6 are made, electrolytic experiment is carried out.The electrolysis cells 10 produced include as 3 parts as (b) of Fig. 6～(d), 2 therein be same shape electrode suppor 31,32, with mutually point-symmetric Mode is configured, and remaining 1 is sept 33, is configured between 2 electrode suppors, in the directions from electrode for electrolysis to 5 overlaps During observation, at least a portion of sept 33 is Chong Die to 5 with electrode for electrolysis.

In addition, in the electrolysis cells 10 produced, using the screw 41 of the titanium with jut 35.Electrode suppor 31st, 32 and sept 33 using acrylic resin manufacture component.Manufactured using big wound engineering as the upper electrode 3 of anode For generating the insoluble electrode of sodium hypochlorite.The titanium plate of Nilaco is adopted as the lower electrode 4 of negative electrode.In addition, adjustment The thickness of sept 33 causes interelectrode distance to assemble 3 components in the range of 1mm～5mm.The electrode in this experimental example Support etc. uses acrylic resin system, therefore the situation that can be observed in electrolysis cells 10.But by not transmiting short wavelength's Light is particularly what the acrylic resin of UV made.This is to reduce the impact of light as far as possible.Therefore, it is excellent in actual product Choosing uses completely opaque material.

Electrode suppor 31,32, sept 33 use screw 41, nut 42 and packing ring (not shown), spring washer, o-ring To fix.It is decomposable state in this experimental example, but from from the viewpoint of long-term reliability, preferred electrolysis cells 10 Bonding plane adopts bonding agent of strength etc. to prevent electrolyte from revealing.In addition, sept 33 is using the high pad of drug resistance, air-tightness Circle is adjusted so as to more consistent thickness and sealed.And, for the reduces cost for seeking a large amount of productions brought, also can be by one It is molded disposably to make electrolysis cells 10.

In addition, in order to be compared, also make and be not provided with the electrolysis cells of jut 35 to carry out electrolytic experiment.Other It is identical to constitute with above-mentioned electrolysis cells 10.

While the processed fluid flowing path 7 of the electrolysis cells 10 to producing is conveyed 3～4% chlorine by 5～80ml/ minutes Change sodium water solution while when being electrolysed, the electrolysis cells 10 for being conformed with portion 35 and the electrolysis cells phase for being not provided with jut 35 Than electrolysis process can be carried out with high electrolytic efficiency.

Experimental example 4

The electrolysis cells 10 as shown in Fig. 9 (a) are made, electrolytic experiment is carried out.The electrolysis cells 10 produced are included such as Fig. 9 (b)～(f) shown in part, the size of the opening of sept 33 is narrower than the electrolysis cells 10 shown in Fig. 6.In addition, sept 33 are configured in the mode Chong Die with the edge part of the edge part of upper electrode 3 and lower electrode 4 of sept 33.

In the case where the solution of electrolysis is sodium-chloride water solution, electrolytic efficiency and experimental example 3 almost indifference, but In the case of making electrolyte become acidity sodium-chloride water solution addition hydrochloric acid, generated by the electrolysis cells 10 for constituting of Fig. 9 Hypochlorous acid class concentration it is high, and concentration change is little.Therefore, according to the such as composition of Fig. 9, electrolytic efficiency and institute are significantly improved The stability of the material concentration of generation.

Think that its reason is, by being set to composition as shown in Figure 9, poorly carry out compared with unbiased in electrode for electrolysis is to 5 Cell reaction, and also than relatively evenly being stirred.Additionally, it is believed that by the way that processed fluid flowing path 7 is set to such as Fig. 9 institutes The composition shown, can also obtain the stirring of processed fluid and the effect of homogenization between electrode beyond stream 6, therefore further carry High substantially efficiency and stability.

Experimental example 5

Using electrolysis unit 15 (a), (b) such as Figure 10, the manufacture of the dilution comprising electrolytically generated thing is carried out. Electrolytic solution 52, using the electrolysis cells 10 as shown in (a) of Fig. 6, is given birth in theory using 3～4% sodium-chloride water solution Into 4000ppm it is hypochlorous under the conditions of carry out electrolysis process.Then, using dilution part 53 with pure water to the aqueous solution after process It is diluted, manufactures dilution.In addition, in order to compare, by existing parallel with vertical direction of the electrode surface of electrode for electrolysis pair Electrolysis cells be assembled into the electrolysis unit as (a) of Figure 10, manufacture dilution.

In the electrolytic experiment using existing electrolysis cells, chlorine cannot be fully molten in the acidic region of below pH7 Solution be used to being hidden in the pure water of dilution in the aqueous solution, in thinning tank it is alveolate in the case of, the chlorine of dilution near surface Concentration is more than 2ppm also above 0.5ppm, in the case of having.Additionally, so far, by the low pH's of electrolytically generated high concentration Hypochlorous acid is not yet extensively practical, it is believed that this is because, in existing method, chlorine is easily produced at a low ph, and be difficult to The liquid of high concentration is efficiently generated by electrolysis.

And on the other hand, in using the electrolytic experiment of the electrolysis unit 15 of this experimental example as (a) of Figure 10, manufacture The pH of the dilution for going out in 6～8 region, hypochlorous acid concentration be more than 1000ppm, the chlorine gas concentration of dilution near surface For below 0.5ppm.Therefore, in the electrolysis unit 15 of this experimental example, the discharge of chlorine can be significantly inhibited compared with comparative example. In addition, in the electrolysis unit 15 of this experimental example, the chlorine produced by electrolysis can efficiently be dissolved in the aqueous solution, therefore to dilute The hypochlorous acid concentration for releasing liquid more than 1000ppm till required time also significantly shorten.

In the electrolytic experiment using the electrolysis unit 15 of this experimental example as (b) of Figure 10, determine and discharge dilution Chlorine gas concentration near the discharge of the end of the pipe arrangement 57 of liquid is below 0.5ppm.

Experimental example 6

Electrolysis unit as shown in figure 19 is made, makes electrode for electrolysis to 5 relative to vertical direction in the same manner as experimental example 1 Angle change carrying out electrolytic experiment.Electrode for electrolysis adopts thick for the 1mm of 1cm for 5cm, minor face including long side to 5 Titanium plate electrode (referred to as Ti electrodes) and be that 5cm, minor face are coated with for the thick titanium plates of the 1mm of 1cm to long side by sintering process The electrode (referred to as Ir covers Ti electrodes) of yttrium oxide.So that Ti electrodes and Ir are covered, and Ti electrodes are almost parallel, interelectrode distance is Mode in the range of 1mm～5mm, by electrode for electrolysis the casing 1 of acrylic resin is fixed on to 5, makes electrolysis unit. In addition, supply unit 72 and electrode for electrolysis are connected to 5 so that Ti electrodes are negative electrode, and it is anode that Ir covers Ti electrodes.

In this experimental example, not electrode forms a part for stream as experimental example 1, to the supply of approximately fixed direction The form of the closing stream type electrolysis cells of processed fluid, but in the electrolytic cell 74 of so-called batch-wise mode is referred to as Make electrode for electrolysis be for about -60 degree of degree～about+60 relative to the angle of inclination of vertical direction to 5, change and angle is set carrying out Arrange.Sodium-chloride water solution to the input of electrolytic cell 74 3～4%.Additionally, when electrode for electrolysis is vertical to 5, angle of inclination is 0 degree, when Ir coverings Ti electrodes (anode) makes electrode for electrolysis incline to 5 in the way of upside, angle of inclination is positive angle Degree, when Ir covering Ti electrodes make electrode for electrolysis incline to 5 in the way of downside, angle of inclination is negative angle.

Then, the constant current using supply unit 72 to electrode for electrolysis to 5 supply 1A, is carried out to sodium-chloride water solution Electrolysis is processed.In addition, applied voltage is for about between 4～5V.In addition, carrying out the effective chlorine density of the aqueous solution after electrolysis process (mg/L) measure.

Figure 18 illustrates the measurement result of effective chlorine density.According to this result, with experimental example 1 conversely, when using as anode Ir covers mode of the Ti electrodes in downside and makes electrode for electrolysis to during 5 inclination, improving having for the aqueous solution after electrolysis is processed Effect cl concn.Specifically, when making electrode for electrolysis incline in the scope within least about -60 degree to 5, and electrolysis electricity consumption is made Compare when extremely vertical to 5, effective chlorine density is improved.In addition, arriving about -45 scopes spent when making electrode for electrolysis spend about -20 to 5 During inclination, when making electrode for electrolysis vertical to 5 compared with, effective chlorine density improves about 5%.When electrode for electrolysis inclines to 5 When tiltedly excessive, the trend of effective chlorine density reduction is shown, be and effective chlorine density phase when vertically (0 degree) when about -60 spend Same degree.

Therefore, so that electrode for electrolysis is less than 60 degree of scope more than 0 degree relative to the angle of inclination of vertical direction to 5 Mode electrode for electrolysis is set to 5 preferably, preferred electrode for electrolysis is 20 degree～45 degree (raising is about to 5 angle of inclination 5%), so electrode for electrolysis is arranged in electrolytic cell 74 preferably to 5.In addition we know, by so as to cover as the Ir of anode A part for lid Ti electrodes configures electrode for electrolysis to 5 positioned at the mode of the vertical lower section of the Ti electrodes as negative electrode, can carry The effective chlorine density of the aqueous solution after high electrolysis process, can improve electrolytic efficiency.

Used as direction of the electrode for electrolysis to 5, having makes minor face be horizontal situation and make long side be horizontal situation, but all It is when with cathode side, when upper mode makes electrode for electrolysis incline to 5, electrolytic efficiency is more preferable.

So, it is different from the electrolysis cells of closing stream type in batch-wise electrolytic cell 74, so that the one of electrode anode Part is located at the mode of the vertical lower section of negative electrode and is arranged obliquely electrode for electrolysis to 5, so as to improve electrolytic efficiency.The difference Reason is failed to understand, it is believed that have hypothesis below.

In negative electrode, it is believed that equally carry out electrode reaction with experimental example 1, H is produced₂.Produced H₂It is compared with indissoluble solution therefore several All become bubble.

Here, it is different from enclosed type electrolysis cells, in particularly the opening comprising side of batch-wise electrolytic cell 74 In the case of putting area more, restriction effect is little, therefore there is H between electrode₂The average time of bubble is short, supplies fresh naturally Material to be electrolysed replacing H₂Bubble, therefore electrolytic efficiency is good.

In addition, naturally the amount of the material to be electrolysed of supply is not particularly limited, thus interelectrode electrolyte concentrations, here It is that the concentration of hypochlorous acid class is remained than relatively low concentration.Produce in anode and be not fully converted to hypochlorous chlorine due to floating Power and rise, to negative electrode side shifting.Now, the aqueous solution and H of the meta-alkalescence near negative electrode₂, chlorine bubble phase than mobile speed Degree is slow, therefore the chance contacted with the chlorine come from anode side shifting increases, and chlorine to the conversion of hypochlorous acid etc. is promoted.

In cathode side in the case of lower, the H of generation₂Bubble, to anode side shifting, is full of H due to its buoyancy between electrode₂ Bubble, sometimes attachment be stranded in anode-side, the area that anode is contacted with material to be electrolysed is substantially reduced.Angle in an experiment For more than 80 degree when, anode surface is almost entirely by H₂Bubble cover, electrolytic efficiency significantly reduces.So, it is believed that due to electrode Between material to be electrolysed amount reduction, bubble caused by the reduction of actual effect electrode area, fresh material to be electrolysed flow into Hinder etc. and cause electrolytic efficiency to reduce.

Additionally, it is believed that the chlorine that the aqueous solution, anode near anode is produced is by H₂Bubble between electrode to side etc. Open surface extrude and flow out, therefore without the aqueous solution and anode promoted as enclosed type electrolysis cells near negative electrode near The stirring of the aqueous solution, does not promote chlorine to the conversion of hypochlorous acid etc. yet, and sometimes chlorine can be as former state from material to be electrolysed to space Discharge, therefore effective chlorine density is low.

In the case of enclosed type electrolysis cells, H₂Bubble and angled manner be independently held between electrode and treat The supply of electrolysed substance is limited, and these points are different.In the enclosed type electrolysis cells of this state, exist when cathode side is made When upper, H₂Disengaging from negative electrode is slack-off, it is taken as that H₂Coverage effect can cause negative electrode effective electrode area reduce and hinder Near the close cathode surface of material to be electrolysed, therefore electrolytic efficiency is reduced.If making cathode side under, H can be promoted₂It is de- From, therefore H can be suppressed₂Coverage effect caused by the effective electrode area of negative electrode reduce, it is and new to cathode surface supply Fresh material to be electrolysed.In addition, H₂Bubble move near anode, therefore the aqueous solution of the meta-alkalescence near negative electrode is also transported It is sent near anode, so as to chlorine is promoted to the conversion of hypochlorous acid etc..In addition, the aqueous solution of the upstream vicinity of negative electrode with Moving for bubble and be promoted to anode direction movement, therefore, in the aqueous solution near the downstream of negative electrode, carried out at electrolysis The ratio of the liquid component of reason is reduced, therefore for electrolysis effectively plays a role.

In addition, in enclosed type electrolysis cells, the material to be electrolysed to supplying in electrolysis cells is restricted, therefore electricity The concentration of the material of solution is easily uprised, and the concentration for hypochlorous acid class in this experimental example is easily uprised.If hypochlorous acid concentration's mistake Height, then electrolytic efficiency can reduce.In this case, it is believed that make at least a portion for the chlorine produced in anode in electrolysis cells Inside it is not converted into hypochlorous acid class but from outlet drain, the water later with dilution part is contacted and is converted to hypochlorous acid class, more can suppress The concentration of the hypochlorous acid class in electrolysis cells rises, and electrolytic efficiency improves.

So, according to circumstances, the condition that electrolytic efficiency improves is different.

Think to make electrode pair be obliquely installed preferable situation in the anode mode more above than negative electrode as follows：(i) electrode Essentially become the enclosed type electrolysis cells of a part for the wall of electrolytic cell or stream, (ii) above-mentioned electrolysis cells possess by The outlet of the entrance of electrolysed substance and the material produced by electrolysis and non-electrolysed substance, (iii) is possessed from entrance and is forcibly supplied Should by the unit of electrolysed substance or from outlet forcibly suction out by electrolysis produce material and non-electrolysed substance unit or During the structure of both persons.

Additionally, the unit of above-mentioned pressure supply can be adopted with the following method：Sent into above-mentioned entrance with pump, or with pump from upper State outlet to attract, or dilution part and its periphery are set into the structure of generation venturi effect and are attracted from above-mentioned outlet, or Utilize gravity to send into located at top in tank etc..It is preferred that the method for possessing pump of most stable liquor charging can be realized.If allowing certain The deviation of degree, then do not use pump and possess using venturi effect, the structure of gravity, can make the energy of pump work, And energy-conservation, reduction pump cost, therefore preferably.Certainly, also can be by pump, venturi effect and gravity any combination, all combination To use.

For example in experimental example 1, in order to be able to supply by fixed amount as far as possible the structure sent into using tube pump is employed.

In addition, in the case where following at least one condition is met, it is believed that in the anode mode more above than negative electrode by electricity Extremely to being obliquely installed more preferably：A () carries out from cathode side the situation of the electrolysis for producing bubble；B () obtains the thing produced in anode-side Matter or the material mode carry out the situation of the material of chemical reaction；C the outlet of () electrolysis cells possesses the situation of dilution part； And (d) is the situation of higher concentration in electrolysis cells by the material concentration that electrolysis is produced.In addition, meeting (a)～(d) In multiple conditions in the case of, meet (a)～(d) in full terms in the case of, be also considered as being located at than negative electrode with anode The mode of top is obliquely installed electrode pair more preferably.

In the structure for possessing electrode for electrolysis pair in actually stockpiling by electrolysed substance, will not be by electrolysed substance pair In the case of forcing the unit of supply or sucking-off, it is believed that electrode pair is arranged into more preferable in anode mode more underlying than negative electrode.

In the case of this structure, the supply of material to be electrolysed is passively carried out with the rising of bubble.

In addition, compared with enclosed type electrolysis cells, being not converted into the chlorine of hypochlorous acid class at short notice easily with gas Mutually discharge.

Think that enclosed type electrolysis cells are to promote the conversion to hypochlorous acid class the reason for more suppression with gas phase emission Factor is more, for example：The amount of the material to be electrolysed supplied is restricted, therefore due to the restriction effect and H in electrolysis cells₂Gas The mixing effect that brings of bubble and easily carry out the conversion to hypochlorous acid class；Chlorine in dilution part to the conversion of hypochlorous acid class is obtained Promote；Conversion etc. of the chlorine to hypochlorous acid class is also continued with the line of the dilution water flowing after dilution part.

Description of reference numerals

1：Casing, 3：Upper electrode, 4：Lower electrode, 5：Electrode for electrolysis pair, 6：Stream between electrode, 7：Processed fluid Stream, 8：Inflow entrance, 9：Flow export, 10：Electrolysis cells, 11：Bubble, 15：Electrolysis unit, 16：When observing from vertical direction Overlapping region, 17：Overlapping region when observing from the direction vertical with the main face of lower electrode, 21：Anode, 22：Negative electrode, 25：Upstream lateral bend stream, 26：Downstream lateral bend stream, 30：Electrode suppor, 31：1st electrode suppor, 32：2nd electrode Frame, 33：Sept, 35：Jut, 36：The opening of sept, 37：The groove of electrode suppor, 41：Screw, 42：Nut, 43：Spiral shell Nail, 45：Electrode terminal, 47：O-ring, 48：Packing ring, 49：Spring washer, 51：Electrolytic solution tank, 52：Electrolytic solution, 53：It is dilute Release portion, 54：Thinning tank, 55：Retaining, 57：Pipe arrangement, 59：Mixing unit, 61：Casing, 62：Feed water inlet, 63：Ejiction opening, 64：Switch, 65：Pipe arrangement, 66：Magnetic valve, 67：Original fluid container, 68：Pump, 70：With pipe portion, 72：Supply unit, 74：Electrolytic cell, 75：Processed stream Body, 77：Distribution 100：Electrolysis unit, 101：Casing, 103：1st electrode, 104：2nd electrode, 106：1st distribution, 107：2nd matches somebody with somebody Line, 108：Supply opening, 109：Floss hole, 111：Casing, 112：Feed water inlet, 113：Ejiction opening, 114：Switch, 115：Pipe arrangement, 116：Magnetic valve, 117：Original fluid container, 118：Pump, 120：Device for producing electrolytic water.

Claims

1. a kind of electrolysis unit, it is characterised in that

Possess electrolysis cells,

Above-mentioned electrolysis cells possess processed fluid flowing path, least one set electrode for electrolysis to, inflow entrance and flow export,

Above-mentioned electrode for electrolysis to being configured and upper including what is be mutually oppositely disposed in the inclined mode relative to vertical direction Portion's electrode and lower electrode,

Above-mentioned processed fluid flowing path is arranged to：The fluid flowed into from above-mentioned inflow entrance is electric in above-mentioned upper electrode and above-mentioned bottom The side flowing on the side under in stream, flows out from above-mentioned flow export between the electrode between pole.

2. electrolysis unit according to claim 1, it is characterised in that

Above-mentioned electrode for electrolysis is more than 0 degree and less than 50 degree to the angle of inclination being configured to relative to vertical direction.

3. electrolysis unit according to claim 1 and 2, it is characterised in that

Above-mentioned processed fluid flowing path have Jie Jin the upstream-side-end of stream between above-mentioned electrode upstream lateral bend stream or Jie Jin the downstream lateral bend stream of the end of downstream side of stream between above-mentioned electrode.

4. the electrolysis unit according to any one of claims 1 to 3, it is characterised in that

It is also equipped with forcing the unit of supply fluid to above-mentioned processed fluid flowing path,

Above-mentioned electrode for electrolysis to be arranged to above-mentioned lower electrode and above-mentioned upper electrode carry out generate gas electrode reaction,

Above-mentioned lower electrode generate and in the quality entity of the gas of outside drain be more than above-mentioned upper electrode generate and to The amount of the gas of outside drain.

5. the electrolysis unit according to any one of Claims 1-4, it is characterised in that

Above-mentioned upper electrode is set to anode,

Above-mentioned lower electrode is set to negative electrode.

6. the electrolysis unit according to any one of claim 1 to 5, it is characterised in that

Above-mentioned lower electrode has the area electrode surface bigger than the area of the electrode surface of above-mentioned upper electrode.

7. the electrolysis unit according to any one of claim 1 to 6, it is characterised in that

It is also equipped with dilution part,

Above-mentioned fluid is the aqueous solution,

Above-mentioned electrode for electrolysis electrochemically generates time chlorine to the chlorine-containing compound for being arranged to be included from the above-mentioned aqueous solution Acid ion,

The aqueous solution of above-mentioned flow export contains the hypochlorite ion that weight ratio is more than 4000ppm,

Above-mentioned dilution part is arranged to generate the dilution of the aqueous solution containing the hypochlorite ion discharged from above-mentioned flow export,

Above-mentioned dilution is below pH7.5.

8. the electrolysis unit according to any one of claims 1 to 3, it is characterised in that

Above-mentioned processed fluid flowing path is arranged to using convection current to above-mentioned processed fluid flowing path supply fluid,

At above-mentioned upper electrode generate and in the quality entity of the gas of outside drain be more than above-mentioned lower electrode generate and To the amount of the gas of outside drain.