CN109267087A - A kind of a bipolar type ion-exchange membrane electrolyzer - Google Patents
A kind of a bipolar type ion-exchange membrane electrolyzer Download PDFInfo
- Publication number
- CN109267087A CN109267087A CN201811157879.5A CN201811157879A CN109267087A CN 109267087 A CN109267087 A CN 109267087A CN 201811157879 A CN201811157879 A CN 201811157879A CN 109267087 A CN109267087 A CN 109267087A
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- Prior art keywords
- slot frame
- cathode
- anode
- end plate
- channel
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Links
- 239000003014 ion exchange membrane Substances 0.000 title claims abstract description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 33
- 239000012528 membrane Substances 0.000 claims abstract description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000565 sealant Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 238000012423 maintenance Methods 0.000 abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 30
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 15
- 229910052759 nickel Inorganic materials 0.000 description 15
- 239000010936 titanium Substances 0.000 description 15
- 229910052719 titanium Inorganic materials 0.000 description 15
- 238000005868 electrolysis reaction Methods 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 10
- 235000011121 sodium hydroxide Nutrition 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000012267 brine Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- IUYOGGFTLHZHEG-UHFFFAOYSA-N copper titanium Chemical compound [Ti].[Cu] IUYOGGFTLHZHEG-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000005405 multipole Effects 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- -1 space is too small Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
- C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The present invention relates to a kind of a bipolar type ion-exchange membrane electrolyzers, the ionic membrane is located in respectively between adjacent slot frame, separators are provided in the groove body, the separators are fixed in slot frame by connection structure, the separators are for separating each unit electrolytic cell, the lower end of the slot frame is respectively arranged with first passage and third channel, the upper end of the slot frame is respectively arranged with second channel and fourth lane, the first inlet is offered on the first passage, the first delivery outlet is offered on the second channel, the second inlet is offered on the third channel, the second delivery outlet is offered in the fourth lane, the external water source containing a small amount of sodium hydroxide of first inlet, the external saturated common salt aqueous solution of second inlet；The a bipolar type ion-exchange membrane electrolyzer cost of manufacture and maintenance cost are lower and can flexibly control production production capacity.
Description
Technical field
The present invention relates to the electrolysis installation field of chlorine industry more particularly to a kind of a bipolar type ion-exchange membrane electrolyzers.
Background technique
A bipolar type ion-exchange membrane electrolyzer is widely used in production of caustic soda industry, single production capacity for covering a bipolar type ion-exchange membrane electrolyzer
5000 tons/year can generally be reached.And the enterprise less for some pairs of caustic soda production capacity demands, generally all to the annual requirement of caustic soda
Lower than 100 tons, since structure is complicated for a bipolar type ion-exchange membrane electrolyzer, processing and manufacturing difficulty is big, at high cost, it is difficult to directly meet this
The demand of type enterprise in addition, traditional a bipolar type ion-exchange membrane electrolyzer each unit electrolytic cell liquid in-out connector is more, thus needs
The leakage point to be sealed is more, and structure is complicated, and maintenance cost is high.Therefore design the low bipolar type of a kind of microminiature, manufacturing cost from
Sub- membrane electrolysis cells are current those skilled in the art's letter problems to be solved.
Summary of the invention
For this reason, it may be necessary to a kind of a bipolar type ion-exchange membrane electrolyzer be provided, to solve traditional a bipolar type ion-exchange membrane electrolyzer production capacity
Uncontrollable and high cost of manufacture problem.
To achieve the above object, a kind of a bipolar type ion-exchange membrane electrolyzer, including anode end plate, cathode terminal are inventor provided
Plate and multiple slot frames, the anode end plate is opposite with cathode end plate to be arranged in parallel, and the anode end plate passes through with cathode end plate
Connector is fixedly connected, and slot frame is located between anode end plate and cathode end plate side by side, in the groove body setting there are two with
Upper unit electrolytic bath, the unit electrolytic bath include anode network, cathode screen and ionic membrane, and the cathode screen is opposite with anode network
Ionic membrane two sides are arranged in parallel in,
The ionic membrane is located in respectively between adjacent slot frame, is provided with separators in the groove body, the electrode every
Plate is fixed in slot frame by connection structure, and the separators are for separating each unit electrolytic cell, the lower end point of the slot frame
It is not provided with first passage and third channel, the upper end of the slot frame is respectively arranged with second channel and fourth lane, institute
It states and offers the first inlet on first passage, the first delivery outlet is offered on the second channel, is opened on the third channel
Equipped with the second inlet, the second delivery outlet is offered in the fourth lane, first inlet is external to contain a small amount of hydroxide
The water source of sodium, the external saturated common salt aqueous solution of the second inlet；
The first passage of the slot frame is towards offering first through hole, the slot on the side of each unit electric tank cathode room
The second channel of frame is towards offering the second through-hole, the first through hole and second on the side of each unit electric tank cathode room
Through-hole connects with unit electrolytic bath cathodic region, and the third channel of the slot frame is towards the side of each unit electrolyzer anode chamber
On offer third through-hole, the fourth lane of the slot frame is towards offering four-way on the side of each unit electrolyzer anode chamber
Hole, the third through-hole and fourth hole connect with unit electrolytic bath anode region.
Further, first inlet and the first delivery outlet are opened in cathode end plate, second inlet
And second delivery outlet be opened in third channel and fourth lane respectively.
Further, the cathode screen is fixed on cathode end plate or separators side, and the anode network is fixed on sun
On extreme plate or separators side.
Further, the slot frame includes single electrode anode slot frame, single electrode cathode can frame and combination electrode slot frame, institute
It states single electrode anode slot frame to be connected with anode end plate, the single electrode cathode can frame is connected with cathode end plate, described compound
The number of slot electrode frame is two or more, and the combination electrode slot frame is juxtaposed on single electrode anode slot frame and single electrode yin
Between the slot frame of pole.
Further, between the adjacent combination electrode slot frame, between single electrode anode slot frame and anode end plate and single
Seal gasket is provided between electrode cathode slot frame and cathode end plate.
It further, further include first connecting portion and the second connecting portion, one end and the slot frame of the first connecting portion
Top surface is connected on inside, and the other end of first connecting portion extends into the groove body of slot frame, one end of the second connecting portion with
The inside bottom surface of slot frame is connected, and the other end of second connecting portion extends into the groove body of slot frame, the separators it is upper
Lower both ends pass through connector respectively and are locked in first connecting portion and the second connecting portion.
Further, third is provided between the separators and the contact surface of first connecting portion and the second connecting portion
Seal gasket.
Further, first inlet and the second inlet are set to the lower section of slot frame, first delivery outlet
And second delivery outlet be set to the top of slot frame.
Further, the anode end plate and cathode end plate are connected to power supply positive and negative electrode by conducting end plates.
Further, the slot frame is made of PP.
It is different from the prior art, above-mentioned technical proposal has the advantages that the input and output by anolyte and catholyte are led to
Trace gather only has single connector at the upper and lower ends for being designed at slot frame, anolyte inlet and outlet and catholyte inlet and outlet, avoids
Leak source caused by connector is more is more, and the high disadvantage of maintenance cost, each unit electrolytic cell is separated using separators, respectively mutually solely
It is vertical to carry out electrolysis work, and slot frame number can be selected to control a bipolar type ion-exchange membrane electrolyzer according to practical production capacity demand
Production capacity, a bipolar type ion-exchange membrane electrolyzer cost of manufacture and maintenance cost are lower and can flexibly control production production capacity.
Detailed description of the invention
Fig. 1 is a kind of top view of a bipolar type ion-exchange membrane electrolyzer of the present embodiment；
Fig. 2 is a kind of bottom view of a bipolar type ion-exchange membrane electrolyzer of the present embodiment；
Fig. 3 is a kind of front view of a bipolar type ion-exchange membrane electrolyzer of the present embodiment；
Fig. 4 is the cross-sectional view at the F-F in Fig. 3；
Fig. 5 is the cross-sectional view at the E-E in Fig. 3.
Description of symbols:
1, anode end plate；
11, double threaded screw；
12, nut；
13, bolt insulation sleeve；
14, anode conducting end plate；
2, cathode end plate；
21, cathode conducting end plates；
31, first passage；
311, the first inlet；
312, first through hole；
32, second channel；
321, the first delivery outlet；
322, the second through-hole；
33, third channel；
331, the second inlet；
332, third through-hole；
34, fourth lane；
341, the second delivery outlet；
342, fourth hole；
35, channel envelope；
36, catholyte input channel；
37, cathode chamber product output channel；
38, anolyte input channel；
39, anode chamber's product output channel；
4, unit electrolytic bath；
41, anode network；
42, cathode screen；
43, ionic membrane；
5, separators；
51, titanium rib；
52, nickel rib；
61, single electrode anode slot frame；
62, single electrode cathode can frame；
63, combination electrode slot frame；
71, the first seal gasket；
72, the second seal gasket；
73, third seal gasket；
81, first connecting portion；
82, second connecting portion；
9, electrode fixedly connected part.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
Fig. 1 to Fig. 5 is please referred to, the present invention provides a kind of a bipolar type ion-exchange membrane electrolyzer, including anode end plate 1, cathode terminal
Plate 2 and multiple slot frames, anode end plate and cathode end plate are connected with the positive and negative anodes of power supply respectively, the anode end plate and yin
Extreme plate is opposite to be arranged in parallel, and the anode end plate is fixedly connected with cathode end plate by connector, and slot frame is located in side by side
Between anode end plate and cathode end plate, slot frame is the frame like structure as made of moulding end to end enclosing, and each slot frame is arranged side by side
When setting, slot circle item mutually splices, and the middle part of slot frame is mutually run through.An end face, cathode end plate court by anode end plate towards slot frame
Space made of enclosing to an end face of slot frame and slot frame inner wall is groove body, and more than two unit electricity are provided in the groove body
Slot 4 is solved, the unit electrolytic bath includes anode network 41, cathode screen 42 and ionic membrane 43, and each unit electrolytic cell is independently arranged
There are anode network, cathode screen and ionic membrane, and the number of anode network in each unit electrolytic cell, cathode screen and ionic membrane is
One.The cathode screen is opposite with anode network to be arranged in parallel in ionic membrane two sides, and cathode screen and anode network and anode end plate
Or cathode end plate is arranged in parallel relatively, ionic membrane is also arranged in parallel with anode end plate or cathode end plate.
Unit electrolytic bath refers to that anolyte and catholyte can be in the cellular constructions for wherein completing electrolysis work.
Anode end plate and cathode end plate are connected by double threaded screw 11 and two nuts 12, anode end plate and cathode
Corresponding connecting hole is offered on end plate is additionally provided with bolt insulation for plugging double threaded screw, and at the both ends of double threaded screw
Set 13, the effect of the bolt insulation sleeve is to prevent from being directly connected between anode end plate and cathode end plate, causes short circuit.
In the present embodiment, which further includes anode conducting end plate 14 and cathode conducting end plates
21, positive pole is transferred current on anode end plate by anode conducting end plate, and power cathode will by cathode conducting end plates
Electric current is transferred in cathode end plate, and electric current passes through anode conducting end plate, anode end plate, cathode conducting end plates, cathode end plate, electrolysis
Liquid and separators forming circuit.
It is transferred current in anode end plate and cathode end plate by anode conducting end plate and cathode conducting end plates
Beneficial effect is: so that conductive area increases, avoiding generating heat at conductive contact.
The ionic membrane is located in respectively between adjacent slot frame, and the moulding of adjacent slot frame aligns and clamps ionic membrane, from
The edge of sub- film is all set between the moulding of adjacent slot frame, and ionic membrane is tensioned between adjacent slot frame.It is set in the groove body
Separators 5 are equipped with, the separators are fixed in slot frame by connection structure, and the separators are for separating each unit
The number of electrolytic cell, separators is one few compared with unit electrolytic bath number, and separators are plate structure, and separators is big
The small inside with slot frame is adapted, and relatively independent each unit electrolytic cell will be partitioned into groove body, each unit electrolytic cell is independently complete
At the electrolysis work of saturated salt solution.
The anode conducting end plate and cathode conducting end plates are titanium copper composite plate, and the separators are that titanium nickel is compound
Plate.Anode conducting end plate and cathode conducting end plates are that the effect of titanium copper composite plate is: the busbar coupled with power supply is copper, because
The contact site of this and busbar should be copper to reduce contact voltage, prevent from generating heat, and reduce energy consumption, the conductivity of titanium is about the ten of copper
/ mono-.Separators are that the effect of titanium nickel compound board is: anode network and cathode screen are titanium matter and nickel material respectively, because
This anode network and cathode screen can be directly welded at the two sides of separators.
The lower end of the slot frame is respectively arranged with first passage 31 and third channel 33, and the upper end of the slot frame is set respectively
Be equipped with second channel 32 and fourth lane 34, first passage, second channel, third channel and fourth lane direction and slot
Towards identical, the first passage, second channel, third channel and fourth lane include channel envelope for the hollow part of frame
35, channel envelope can be frame like structure, and it is logical that the hollow part of frame like structure directly forms first passage, second channel, third
Road and fourth lane, channel envelope are arranged in above the upper surface of slot frame or below the lower end surface of slot frame；Channel envelope
It can be U-shaped structure, the opening of U-shaped structure is arranged in above the upper surface of slot frame or below the lower end surface of slot frame, by U-shaped knot
The inner wall of structure and the lower end surface of slot frame form first passage or third channel, by the inner wall of U-shaped structure and the upper surface of slot frame
Form second channel or fourth lane；Channel envelope is also possible to arcuate structure, and the both ends of arcuate structure are arranged in slot respectively
The lower end surface two sides of frame form first passage or third channel, the both ends of arcuate structure are arranged in the upper surface two of slot frame respectively
Side forms second channel or fourth lane.First passage and third channel are juxtaposed on the lower section of slot frame, second channel
And fourth lane is juxtaposed on the top of slot frame, the channel width of first passage and third channel and the width with slot frame
It is identical, the channel width of second channel and fourth lane and of same size with slot frame.When each slot frame splices side by side, slot frame
First passage, second channel, third channel and the fourth lane of upper setting are aligned setting, and are intertwined.First passage
Catholyte input channel 36 is formed after splicing, forms cathode chamber product output channel 37 after second channel splicing, and third channel is spelled
Anolyte input channel 38 is formed after connecing, and forms anode chamber's product output channel 39 after fourth lane splicing.
In certain preferred embodiments, first passage and second channel are relatively arranged on the diagonal position of slot frame, and
Triple channel and fourth lane are relatively arranged on the diagonal position of slot frame, the beneficial effect is that: mainly allow anolyte and
Catholyte distributing equilibrium in electrolytic cell, the residence time is long, improves production concentration, improves electrolytic efficiency.
In certain preferred embodiments, the number of the first through hole, the second through-hole, third through-hole and fourth hole
It is two or more, the beneficial effect is that, it can be improved anolyte, catholyte passes in and out the speed of a bipolar type ion-exchange membrane electrolyzer
Rate, to improve the electrolytic efficiency of a bipolar type ion-exchange membrane electrolyzer.
The first inlet 311 is offered on the first passage, and the first delivery outlet 321 is offered on the second channel,
The external water source containing a small amount of sodium hydroxide of first inlet, the water source containing a small amount of sodium hydroxide should by first passage input
Catholyte is used as in a bipolar type ion-exchange membrane electrolyzer, the sodium hydroxide and hydrogen that concentration increases after electrolysis are arranged by second channel
Out to the first delivery outlet.The second inlet 331 is offered on the third channel, offers the second output in the fourth lane
Mouth 341, the external saturated common salt aqueous solution of the second inlet, saturated common salt aqueous solution inputs the bipolar type by third channel
Anolyte is used as in ion-exchange membrane electrolyzer, light salt brine and chlorine are discharged to the second delivery outlet by fourth lane after electrolysis.
The first passage of the slot frame is towards offering first through hole 312, institute on the side of each unit electric tank cathode room
The second channel of slot frame is stated towards offering the second through-hole 322, the first through hole on the side of each unit electric tank cathode room
And second through-hole connect with unit electrolytic bath cathodic region, circulate in the water source containing a small amount of sodium hydroxide in first passage
It is input in each unit electrolytic cell by first through hole, the water source containing a small amount of sodium hydroxide as catholyte enters unit electricity
The cathode chamber of slot is solved, the product concentrated sodium hydroxide and hydrogen of cathode chamber are output in second channel from the second through-hole, then by first
Delivery outlet output.The third channel of the slot frame towards offering third through-hole 332 on the side of each unit electrolyzer anode chamber,
For the fourth lane of the slot frame towards fourth hole 342 is offered on the side of each unit electrolyzer anode chamber, the third is logical
Hole and fourth hole connect with unit electrolytic bath anode region, and the saturated common salt aqueous solution circulated in third channel passes through
Third through-hole is input in each unit electrolytic cell, and the anode of unit electrolytic bath is entered as the saturated common salt aqueous solution of anolyte
Room, the product light salt brine and chlorine of anode chamber are output in fourth lane from fourth hole, then are exported by the second delivery outlet.Sun
Polar net is set in anode chamber, and cathode screen is set in cathode chamber, each list under the action of anode network, cathode screen and ionic membrane
First electrolytic cell completes the electrolysis work of saturated salt solution.
In certain preferred embodiments, first inlet and the first delivery outlet are opened in cathode end plate, institute
It states the second inlet and the second delivery outlet is opened in respectively in third channel and fourth lane.By catholyte by first into
Liquid mouth inputs in the catholyte input channel being made of each slot frame, then the yin of each unit electrolytic cell is entered by first through hole
In pole room, the cathode chamber product after electrolysis enters in catholyte output channel from the second through-hole, then is exported by the first delivery outlet,
Directly the first inlet and the first delivery outlet are provided in cathode end plate, reached catholyte input and output in the multipole
It carries out in formula ion-exchange membrane electrolyzer groove body, avoids and open up catholyte input/output port respectively on each unit electrolytic cell and bring
The disadvantages of structure is complicated, interface is more, leakage point is more, maintenance cost is high.Anolyte is inputted by the second inlet by each
It in the anolyte input channel of slot frame composition, then is entered by third through-hole in the anode chamber of each unit electrolytic cell, after electrolysis
Anode chamber's product entered in anolyte output channel from fourth hole, then by the second delivery outlet export, by the second inlet
And second delivery outlet be opened in third channel and fourth lane respectively, reached anolyte input and output in the multipole
It carries out in formula ion-exchange membrane electrolyzer groove body, avoids and open up anolyte input/output port respectively on each unit electrolytic cell and bring
The disadvantages of structure is complicated, interface is more, leakage point is more, maintenance cost is high.Meanwhile in order to which stringing is convenient, the second inlet is set
And second delivery outlet direction and the first inlet and the first delivery outlet towards identical, but the second inlet and second
Delivery outlet is not provided in cathode end plate, the reason is that in order to avoid saturated salt solution, light salt brine and chlorine are to cathode terminal
The corrosion of plate；
Second inlet and the second delivery outlet are opened in respectively on third channel and the channel envelope of fourth lane, then
The second inlet and the second delivery outlet are led to by external bend pipe and are located in same level with cathode end plate end face.At certain
In a little particularly preferred embodiments, the second inlet and the second delivery outlet are provided with the slot frame third channel close to cathode end plate
And in fourth lane, the beneficial effect is that, pipe material can be saved, the production of a bipolar type ion-exchange membrane electrolyzer is reduced
Cost.
In certain preferred embodiments, the cathode screen is fixed on cathode end plate or separators side, the sun
Polar net is fixed on anode end plate or separators side.In the present embodiment, the anode end plate is titanium plate, cathode end plate
For nickel plate or titanium nickel compound board, cathode end plate nickel directly uses the beneficial of titanium nickel compound board facing towards groove body inside, cathode end plate
Effect is that titanium price is low compared with nickel material, has higher economic benefit.Anode network is titanium net, and cathode screen is nickel screen, anode network
It is welded on the titanium side of separators by titanium rib 51, there are gap between anode network and separators, anode network passes through titanium muscle
Item is welded on the titanium side of separators, and the both ends of titanium rib are respectively welded on the titanium side of anode network and separators, close
In the unit electrolytic bath of anode end plate, anode network is welded on anode end plate by titanium rib, similarly, anode network and anode end plate
Between there are gap, the both ends of titanium rib are respectively welded on anode network and anode end plate, anode network and anode end plate or
Existing gap depends on the length of titanium rib between separators.There are gaps, anode network between anode network and separators
Beneficial effect between anode end plate there are gap is: making anolyte and catholyte distribution space bigger, due to product
In there are gases, space is too small, gas can be made to occupy electrode surface and hinder to react.And distance is smaller between yin-yang polar net, electricity
Pressure drop is lower, and low energy consumption.
Cathode screen is welded on the nickel side of separators by nickel rib, and there are gap, yin between cathode screen and separators
Polar net is welded on the nickel side of separators by nickel rib 52, and the both ends of nickel rib are respectively welded at cathode screen and separators
Nickel side on, in the unit electrolytic bath of cathode end plate, cathode screen is welded in cathode end plate by nickel rib, similarly, negative
There are gap between polar net and cathode end plate, the both ends of nickel rib are respectively welded in cathode screen and cathode end plate, cathode screen
Existing gap depends on the length of nickel rib between cathode end plate or separators.
In certain preferred embodiments, the slot frame include single electrode anode slot frame 61, single electrode cathode can frame 62 with
And combination electrode slot frame 63, the single electrode anode slot frame are connected with anode end plate, the single electrode cathode can frame and cathode
End plate is connected, and the number of the combination electrode slot frame is two or more, and the combination electrode slot frame is juxtaposed on single electrode
Between anode slot frame and single electrode cathode can frame.The slot frame width angle value of single electrode anode slot frame and single electrode cathode can frame is
The half of combination electrode slot frame width angle value, the beneficial effect is that, anode chamber and list are formed by single electrode anode slot frame
It is identical as cathode chamber size that it is formed by anode chamber formed in cathode chamber and combination electrode slot frame in electrode cathode slot frame, makes
Obtain the electrolysis work that the electrolysis working efficiency carried out in each unit electrolytic cell in a bipolar type ion-exchange membrane electrolyzer is identical, to entirety
Efficiency controllability is higher；
In more preferred embodiment, between the adjacent combination electrode slot frame, single electrode anode slot frame and anode tap
It is provided with seal gasket between plate and between single electrode cathode can frame and cathode end plate, it is close between adjacent combination electrode slot frame
The shape of potting pad is identical as each slot frame contact surface shape, i.e. the shape of seal gasket is to be located in adjacent combination electrode slot frame
Between laminated structure, and correspond to groove body inner space, first passage, second channel, third channel and fourth lane
Position offer through-hole.The flap seal rubber mat being arranged between single electrode anode slot frame and anode end plate is corresponding to groove body
The position of inner space offers through-hole, and the flap seal rubber mat being arranged between single electrode cathode can frame and cathode end plate is corresponding
Through-hole is offered in the position of groove body inner space, the first inlet and the first delivery outlet.It is highly preferred that described adjacent multiple
Seal gasket between composite electrode slot frame includes the first seal gasket 71 and the second seal gasket 72,71 in Fig. 4 and Fig. 5 with
It is the entity part of the first seal gasket and the second seal gasket, the one side of the first seal gasket respectively guided by 72 labels
It fits with combination electrode slot frame, the one side of the another side of the first seal gasket and the second seal gasket the first seal gasket of direction
It fits, another side and the combination electrode slot frame of the second seal gasket fit, the first seal gasket the second seal gasket of direction
One side be dentalation perhaps the second seal gasket towards the one side of the first seal gasket be that dentalation or first are close
Potting pad towards the second seal gasket and the second seal gasket towards the first seal gasket while be dentation knot
Structure, ionic membrane are located between the first seal gasket and the second seal gasket, since the frictional force of dentalation is larger, ion
Film is not easy to fall off between adjacent combination electrode slot frame.
In the present embodiment, the slot frame is made of PP, specifically, single electrode anode slot frame, single electrode cathode can frame with
And combination electrode slot frame is that PP is made, the beneficial effect is that, the difficulty of processing of PP slot frame substantially reduces, and volume reduction is convenient for
Miniaturization, material price is low and manufacturing cost is low.
User can select the number of combination electrode slot frame according to needed for practical production capacity, as of combination electrode slot frame
When number is one, the number of unit electrolytic bath is two, when the number of combination electrode slot frame is two, of unit electrolytic bath
Number is three, and so on, the number of unit electrolytic bath compared with combination electrode slot frame number more than one.
It further include first connecting portion 81 and second connecting portion 82, first connection in certain preferred embodiments
The one end in portion is connected with top surface on the inside of slot frame, and the other end of first connecting portion extends into the groove body of slot frame, and described
One end of two interconnecting pieces is connected with the inside bottom surface of slot frame, and the other end of second connecting portion extends into the groove body of slot frame,
The upper and lower ends of the separators pass through electrode fixedly connected part 9 respectively and are locked on first connecting portion and the second connecting portion
On.The shape of first connecting portion and the second connecting portion is strip structure, and first connecting portion is covered in first through hole, second logical
Hole, third through-hole and fourth hole correspondence offer first connecting portion through-hole, and second connecting portion is covered in first through hole, second
Through-hole, third through-hole and fourth hole correspondence offer second connecting portion through-hole.
Third seal gasket is provided between the separators and the contact surface of first connecting portion and the second connecting portion
It is the entity part of third seal gasket guided by 73 labels in 73, Fig. 4 and Fig. 5, the beneficial effect is that, make each
It is mutually indepedent between unit electrolytic bath, avoid the anolyte or the mutual flow effect electrolytic cell of catholyte between unit electrolytic bath
Normal work.
In certain preferred embodiments, first inlet and the second inlet are set to the lower section of slot frame, institute
It states the first delivery outlet and the second delivery outlet is set to the top of slot frame, the beneficial effect is that, in anolyte and catholyte
During inputting in a bipolar type ion-exchange membrane electrolyzer, due to having gas generation in anode chamber and cathode chamber, by the
One inlet and the second inlet are set to the lower section of slot frame, the first delivery outlet and the second delivery outlet and are set to the upper of slot frame
Side can be conducive to also avoid slot intracorporal gas discharge to generate bubble in groove body by the way of bottom in and top out.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
Scope of patent protection of the invention.Therefore, it based on innovative idea of the invention, change that embodiment described herein is carried out and is repaired
Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with
Upper technical solution is used in other related technical areas, is included within the scope of protection of the patent of the present invention.
Claims (10)
1. a kind of a bipolar type ion-exchange membrane electrolyzer, including anode end plate, cathode end plate and multiple slot frames, the anode end plate with
Cathode end plate is opposite to be arranged in parallel, and the anode end plate is fixedly connected with cathode end plate by connector, and slot frame sandwiched arranged side by side
Between anode end plate and cathode end plate, more than two unit electrolytic baths, the unit electrolytic bath packet are provided in the groove body
Anode network, cathode screen and ionic membrane are included, the cathode screen is opposite with anode network to be arranged in parallel in ionic membrane two sides, and feature exists
In:
The ionic membrane is located in respectively between adjacent slot frame, and separators are provided in the groove body, and the separators are logical
It crosses connection structure to be fixed in slot frame, for separating each unit electrolytic cell, the lower end of the slot frame is set the separators respectively
It is equipped with first passage and third channel, the upper end of the slot frame is respectively arranged with second channel and fourth lane, and described
The first inlet is offered on one channel, and the first delivery outlet is offered on the second channel, is offered on the third channel
Second inlet, offer the second delivery outlet in the fourth lane, and first inlet is external containing a small amount of sodium hydroxide
Water source, the external saturated common salt aqueous solution of the second inlet；
The first passage of the slot frame towards offering first through hole on the side of each unit electric tank cathode room, the slot frame
Second channel is towards offering the second through-hole, the first through hole and the second through-hole on the side of each unit electric tank cathode room
It connects with unit electrolytic bath cathodic region, the third channel of the slot frame is towards opening on the side of each unit electrolyzer anode chamber
Equipped with third through-hole, the fourth lane of the slot frame towards offering fourth hole on the side of each unit electrolyzer anode chamber,
The third through-hole and fourth hole connect with unit electrolytic bath anode region.
2. a bipolar type ion-exchange membrane electrolyzer according to claim 1, it is characterised in that: first inlet and first
Delivery outlet is opened in cathode end plate, and second inlet and the second delivery outlet are opened in third channel and the 4th respectively
On channel.
3. a bipolar type ion-exchange membrane electrolyzer according to claim 1, it is characterised in that: the cathode screen is fixed on cathode terminal
On plate or separators side, the anode network is fixed on anode end plate or separators side.
4. a bipolar type ion-exchange membrane electrolyzer according to claim 1, it is characterised in that: the slot frame includes single electrode anode
Slot frame, single electrode cathode can frame and combination electrode slot frame, the single electrode anode slot frame are connected with anode end plate, the list
Electrode cathode slot frame is connected with cathode end plate, and the number of the combination electrode slot frame is two or more, the combination electrode slot
Frame is juxtaposed between single electrode anode slot frame and single electrode cathode can frame.
5. a bipolar type ion-exchange membrane electrolyzer according to claim 4, it is characterised in that: the adjacent combination electrode slot frame it
Between, be provided with sealant between single electrode anode slot frame and anode end plate and between single electrode cathode can frame and cathode end plate
Pad.
6. a bipolar type ion-exchange membrane electrolyzer according to claim 1, it is characterised in that: further include first connecting portion and
One end of two interconnecting pieces, the first connecting portion is connected with top surface on the inside of slot frame, and the other end of first connecting portion is to slot
Extend in the groove body of frame, one end of the second connecting portion is connected with the inside bottom surface of slot frame, second connecting portion it is another
Hold and extend into the groove body of slot frame, the upper and lower ends of the separators pass through respectively connector be locked on first connecting portion and
In second connecting portion.
7. a bipolar type ion-exchange membrane electrolyzer according to claim 6, it is characterised in that: the separators are connect with first
Third seal gasket is provided between portion and the contact surface of second connecting portion.
8. a bipolar type ion-exchange membrane electrolyzer according to claim 1, it is characterised in that: first inlet and second
Inlet is set to the lower section of slot frame, and first delivery outlet and the second delivery outlet are set to the top of slot frame.
9. a bipolar type ion-exchange membrane electrolyzer according to claim 1, it is characterised in that: the anode end plate and cathode terminal
Plate is connected to power supply positive and negative electrode by conducting end plates.
10. a bipolar type ion-exchange membrane electrolyzer according to claim 1, it is characterised in that: the slot frame is made of PP.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811157879.5A CN109267087B (en) | 2018-09-30 | 2018-09-30 | Multipole type ionic membrane electrolytic tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811157879.5A CN109267087B (en) | 2018-09-30 | 2018-09-30 | Multipole type ionic membrane electrolytic tank |
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| CN109267087B CN109267087B (en) | 2024-01-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184618A (en) * | 2019-07-12 | 2019-08-30 | 福建浩达智能科技股份有限公司 | A kind of electrolyzer system and its miniature a bipolar type ion-exchange membrane electrolyzer group |
| CN111058055A (en) * | 2019-12-20 | 2020-04-24 | 江苏安凯特科技股份有限公司 | Cathode structure of ion membrane electrolytic cell |
| CN113171687A (en) * | 2021-05-12 | 2021-07-27 | 氢星(上海)生物科技有限公司 | Ion semi-permeable membrane component, electrolytic device and disinfectant manufacturing equipment |
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| CN110184618A (en) * | 2019-07-12 | 2019-08-30 | 福建浩达智能科技股份有限公司 | A kind of electrolyzer system and its miniature a bipolar type ion-exchange membrane electrolyzer group |
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| CN113171687A (en) * | 2021-05-12 | 2021-07-27 | 氢星(上海)生物科技有限公司 | Ion semi-permeable membrane component, electrolytic device and disinfectant manufacturing equipment |
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| Publication number | Publication date |
|---|---|
| CN109267087B (en) | 2024-01-09 |
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