CN209368364U - A kind of chlorine industry oxygen cathode ion membrane electrolysis slot - Google Patents
A kind of chlorine industry oxygen cathode ion membrane electrolysis slot Download PDFInfo
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- CN209368364U CN209368364U CN201822067881.5U CN201822067881U CN209368364U CN 209368364 U CN209368364 U CN 209368364U CN 201822067881 U CN201822067881 U CN 201822067881U CN 209368364 U CN209368364 U CN 209368364U
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- oxygen cathode
- lye
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Abstract
The utility model discloses a kind of chlorine industry oxygen cathode ion membrane electrolysis slots, including square tube, anode chamber, lye room and oxygen room, the square tube forms the peripheral frame of electrolytic cell, the square tube of square tube and anode-side including lye room side, the anode chamber includes anode, the oxygen room includes oxygen cathode carrier and conductive silk screen, the top of the electrolytic cell is provided with air inlet pipe, lower part is provided with escape pipe, ionic membrane is additionally provided between the anode and oxygen cathode carrier, it is characterized in that, it further include sealed fixing device, lye room and oxygen room are sealingly fastened on electrolytic cell by the sealed fixing device.The chlorine industry of the utility model oxygen cathode ion membrane electrolysis slot, not only electrolytic cell sealing effect is more preferable, long service life, and the structure of equipment more advantages of simple, the tank voltage of electrolytic cell are also lower.
Description
Technical field
The present invention relates to electrolysis field, in particular to a kind of chlorine industry oxygen cathode ion membrane electrolysis slots.
Background technique
Chlorine industry is the basic activity of national chemical industry, and the caustic soda of chlorine industry production is a large amount of on chemical industry
It uses.The caustic soda is generated by electrolysis method electrolytic saltwater.In electrolysis method electrolytic saltwater, ton alkali power consumption is crucial
The indicator of costs.And ton alkali power consumption is directly reflected by the tank voltage of electrolytic cell, wherein voltage is lower, and power consumption is lower；Phase
Instead, voltage is higher, and power consumption is higher.
Therefore, it in order to reduce tank voltage, needs constantly to improve existing cell construction, researchs and develops a ton alkali electricity
Consume lower electrolytic cell.Currently, oxygen cathode electrolytic cell is recognized the ton alkali electricity that can reduce electrolytic cell from principle in the industry
Consumption.The electrolyzer reaction of oxygen cathode is as follows:
2NaCl+H2O+1/2O2=2NaOH+Cl2↑
Wherein, in anode: 2Cl-- 2e=Cl2
In cathode: 2H2O+1/2O2+ 2e=2OH-
The tank voltage generated using oxygen cathode electrolytic cell is smaller by 1/3 or so than the tank voltage of common nickel cathode electrolytic cell.Cause
This, the oxygen cathode electrolytic cell for developing new construction is the future thrust for reducing production caustic soda cost.
Current existing oxygen cathode electrolytic cell is in use, and the place of being connected and fixed of oxygen room and cathode chamber is easy to generate and let out
The bad phenomenons such as leakage.Although many technological improvements have also been made on preventing the leakage of oxygen cathode electrolytic cell in the prior art, such as pass through
It realizes and seals and fixes further through the mode that screw fastens after gluing, but these improvement effects are not very well, after electrolytic cell operation
It still can often leak, and this kind sealing fixed form process is more.
In addition, while reducing the tank voltage of electrolytic cell, also producing electrolytic cell itself to improve the production capacity of electrolytic cell
Given birth to other defects, for example made the structure of electrolytic cell more complicated, especially the structure at sealing and process become it is complicated and
It is cumbersome.
Summary of the invention
The object of the present invention is to provide a kind of chlorine industry oxygen cathode ion membrane electrolysis slots, using oxygen cathode of the invention
Ion-exchange membrane electrolyzer, not only electrolytic cell sealing effect is more preferable, structure more advantages of simple.
The present invention is achieved by the following technical solutions:
A kind of chlorine industry oxygen cathode ion membrane electrolysis slot, including square tube, anode chamber, lye room and oxygen room, it is described
Square tube forms the peripheral frame of electrolytic cell, and the square tube of square tube and anode-side including lye room side, the anode chamber includes anode,
The oxygen room includes oxygen cathode carrier and conductive silk screen, and the top of the electrolytic cell is provided with air inlet pipe, and lower part is provided with out
Tracheae is additionally provided with ionic membrane between the anode and oxygen cathode carrier, which is characterized in that further includes sealing fixed dress
It sets, lye room and oxygen room are sealingly fastened on electrolytic cell by the sealed fixing device.
Wherein, the sealed fixing device includes band and lye frame, and the band and lye frame are located in
Between the square tube of lye room side and the square tube of anode-side.
Preferably, the band is close to the square tube setting of lye room side.
Preferably, the band is Teflon tap.
Wherein, further include composite plate and partition, conduction is connected by composite plate between the oxygen room and anode chamber, it is described
Partition, which is buckled to composite plate, to be arranged.
Preferably, acid and alkali-resistance plastic silk screen is additionally provided between the oxygen cathode carrier and anode.
Wherein, dispersion pipe is additionally provided in the anode chamber.
Preferably, the top of the anode chamber is additionally provided with gas-liquid separation chamber.
It is furthermore preferred that being additionally provided with anode gusset and anode weir plate in the anode chamber.
Beneficial effect
Chlorine industry of the invention oxygen cathode ion membrane electrolysis slot, not only electrolytic cell sealing effect is more preferable, service life
It is long, and the structure of equipment more advantages of simple, the tank voltage of electrolytic cell are also lower.
Detailed description of the invention
Fig. 1 is oxygen cathode ion membrane electrolysis slot overall structure diagram of the invention；
Fig. 2 is the unit groove side view of oxygen cathode ion membrane electrolysis slot of the invention；
Fig. 3 is the electrolysis cells side view of oxygen cathode ion membrane electrolysis slot of the invention.
Wherein: 1, square tube；101, the square tube of lye room side；102, the square tube of anode-side；2, oxygen cathode carrier；3, current collection
Body；4, partition；5, composite plate；6, air inlet pipe；7, anode gas-liquid separation chamber；8, anode weir plate；9, anode disc；10, gusset；11,
Dispersion pipe；12 anodes；13, escape pipe；14, drain connection；15, band；16, ionic membrane；17, acid and alkali-resistance plastic silk screen；18,
Lye frame；19, feed liquor is taken over.
Specific embodiment
Chlorine industry of the invention oxygen cathode ion membrane electrolysis slot is described below by specific embodiment.Unless special
Do not mentionlet alone it is bright, the present invention used in technological means be method known in those skilled in the art.In addition, embodiment should manage
It is illustrative for solving, and the range being not intended to limit the present invention, the spirit and scope of the invention are limited only by the claims that follow.For
For those skilled in the art, under the premise of without departing substantially from spirit and scope of the present invention, technical solution of the present invention is made each
Kind modification and improvement, also belong to protection scope of the present invention.
As shown in Figures 1 to 3, chlorine industry of the invention oxygen cathode ion membrane electrolysis slot, including anode chamber, lye room and
Oxygen room.
Wherein, square tube 1 forms the peripheral frame of electrolytic cell, and anode chamber is mainly surrounded by square tube 1, anode disc 9 and anode 12
It forms, anode disc 9 is by thin titanium board bent into shape, and when fixed, 9 surrounding bending of anode disc is covered in square tube 1.In anode chamber also
It is provided with dispersion pipe 11, gusset 10 and weir plate 8.Dispersion pipe 11 is mounted on anode chamber bottom, can effectively ensure to enter each gusset
Feed liquor between 10 is evenly distributed.More gussets 10 are fixed on 9 bottom of anode disc by electric resistance welding.Weir plate 8 is installed in the anode compartment
Portion, anode chamber's electrolyte inside recycles when can promote electrolysis.Anode 12 is fixed on gusset 10 by electric resistance welding, anode 12 using as
The titanium system seine plate surface of substrate is burnt deposited precious metal oxide coating and is made, the anode 12 of the structure, when can effectively reduce electrolysis
Chlorine evolution potential.At the top of anode chamber, it is additionally provided with gas-liquid separation chamber 7, the gas-liquid that electrolysis generates can be efficiently separated.
Lye room is mainly surrounded by lye frame 18, ionic membrane 16 and oxygen cathode carrier 2, and lye frame 18 is set respectively
It is placed in the surrounding of lye room, the preferred alkali resistance of the material of lye frame 18 good stainless steel or nickel material.Alkali at lye ceiling end
Outside liquid frame 18, it is connected with drain connection 14, outside the lye frame 18 of lye room bottom end, is connected with feed liquor adapter tube
19。
Wherein, be additionally provided with acid and alkali-resistance plastic silk screen 17 in lye room, the acid and alkali-resistance plastic silk screen 17 with a thickness of 2~
3mm is resistant to 100 DEG C of high temperature.The setting of the acid and alkali-resistance plastic silk screen 17 not only can effectively ensure that lye enters lye room
Free air space can also prevent the contact of anode 12 with oxygen cathode carrier 2, thus, the generation of short circuit phenomenon when avoiding electrolysis.
Oxygen room is mainly surrounded by square tube 1, partition 4, oxygen cathode carrier 2.Wherein, partition 4 is using first by thin plate four
All bendings are buckled to afterwards to composite plate 5, are then fixed in square tube 1 by spot welding, later with sealant sealing form set
It sets, good sealing effect can be realized in oxygen room.In addition, the setting of this kind of structure, because not having to sealing in lye room
Glue sealing makes the anti-leakage ability enhancing of electrolytic cell, and the service life is longer.
In oxygen cathode ion membrane electrolysis slot of the invention, partition 4 is arranged in the form of being buckled to composite plate 5, makes invocation point
It does not need that being welded and fixed for partition 4 and square tube 1 can be realized using more solder joint when weldering, that is, uses less solder joint, that is, reachable
To the effect being welded and fixed, and less solder joint can make the deformation of weld few so that the welding of electrolytic cell here and
Sealing performance is more preferable, and lesser deformation at this is but also the deformation of entire electrolytic cell is smaller, so that electrolytic cell component in assembling
Between be easier well cooperation, to improve the runnability of entire electrolytic cell.
Wherein, the oxygen cathode carrier 2 is electrode reaction carrier, and substrate is nickel foam, and surface is covered with coating.The knot
Structure makes oxygen cathode carrier 2 have hydrophobicity and gas permeability, so as to preferably realize its function.
In addition, being additionally provided with collector 3 in oxygen room, collector 3 is a kind of silk screen, have certain buffer capacity and
Good electric conductivity is fixed on partition 4 by resistance spot welding.2 surrounding of oxygen cathode carrier is arranged by overlap joint in side
On the sealing surface of pipe 1, it is arranged on collector 3 inside the oxygen cathode carrier 2 by overlap joint, contacts conduction with collector 3.
Wherein, lye room and oxygen room, which are sealed the two using sealed fixing device, fixes.The sealed fixing device packet
Band 15 and lye frame 18 are included, the square tube 101 that the band 15 is close to lye room side is arranged, and the lye frame 18 presss from both sides
Between the square tube 101 of lye room side and the square tube 102 of anode-side.It is preferred that band 15 is Teflon tap.
The present invention is then squeezed again with lye frame 18 and is fixed using Teflon tap 15 is bonded between oxygen cathode carrier 2 and square tube 1
It is fixed stronger reliable not only to make sealing for sealing, this kind of fixing seal mode, and process is simple, at low cost.
Wherein, conduction is connected by composite plate 5 between oxygen room and anode chamber.Composite plate 5 is that a kind of titanium nickel or titanium steel are multiple
Plywood is connect with anode disc 9 by resistance spot welding, while also carrying out electric resistance welding connection with partition 4.
Oxygen cathode ion membrane electrolysis slot of the invention, oxygen cathode carrier 2 are arranged close to acid and alkali-resistance plastic silk screen 17, acid and alkali-resistance
Plastic silk screen 17 is arranged close to ionic membrane 16, and 16 another side of ionic membrane is close to the setting of anode 12 again.When energization electrolysis, collect related
Data calculate decomposition voltage, and then determine the operational effect of electrolytic cell.It is specific as follows:
First be full of the light salt brine of 205g/L in anode chamber, oxygen be filled in oxygen room, be filled with the pressure of oxygen according to
The sum of anode chamber's liquid and gas pressure determines；Lye is full of in lye room.Constantly flow into 305g/L's after energization, in anode chamber
Strong brine, on the anode 12 of anode chamber can electrolytically generated chlorine, sodium ion and partial moisture enter lye room by ionic membrane,
The oxygen of oxygen room generates hydroxide ion in carrier surface and water molecule reaction through oxygen cathode carrier 2, and hydroxide ion is again
Caustic soda is generated in conjunction with the sodium ion for entering lye room.When electrical current density is 3~4kA/m2When, calculating decomposition voltage is
2.05V or so, decomposition voltage are substantially reduced than the voltage of existing ion-exchange membrane electrolyzer.In addition, by oxygen cathode of the invention from
Sub- membrane electrolysis cells operation a period of time, there are not leakage, the service life of electrolytic cell, durability also significantly improves.
Embodiment 1
Anode chamber is constantly filled with the strong brine of 305g/L, and lye room is filled with 30% caustic soda, and oxygen pressure is controlled in 1m water column,
The Cation-selective ion film produced using foreign countries, is passed through 3kA/m2Electric current, after stable circulation, measurement show that voltage stabilization exists
2.04V。
Embodiment 2
Anode chamber is constantly filled with the strong brine of 305g/L, and lye room is filled with 30% caustic soda, and oxygen pressure is controlled in 1m water column,
Replacement is passed through 3kA/m using the external Cation-selective ion film produced2Electric current, after stable circulation, measurement obtains voltage stabilization
In 2.06V.
Embodiment 3
Anode chamber is constantly filled with the strong brine of 305g/L, and lye room is filled with 30% caustic soda, and oxygen pressure is controlled in 1m water column,
The Cation-selective ion film produced using foreign countries, is passed through 3.5kA/m2Electric current, after stable circulation, measurement show that voltage stabilization exists
2.05V。
Claims (9)
1. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot, including square tube, anode chamber, lye room and oxygen room, the side
Pipe forms the peripheral frame of electrolytic cell, and the square tube of square tube and anode-side including lye room side, the anode chamber includes anode, institute
Stating oxygen room includes oxygen cathode carrier and conductive silk screen, and the top of the electrolytic cell is provided with air inlet pipe, and lower part is provided with outlet
Pipe, is additionally provided with ionic membrane between the anode and oxygen cathode carrier, which is characterized in that further include sealed fixing device, institute
It states sealed fixing device lye room and oxygen room are sealingly fastened on electrolytic cell.
2. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 1, which is characterized in that the sealing
Fixed device includes band and lye frame, and the band and lye frame are located in the square tube and anode-side of lye room side
Square tube between.
3. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 2, which is characterized in that the sealing
With the square tube setting for being close to lye room side.
4. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 3, which is characterized in that the sealing
Band is Teflon tap.
5. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 1, which is characterized in that further include multiple
Plywood and partition connect conduction by composite plate between the oxygen room and anode chamber, and the partition, which is buckled to composite plate, to be arranged.
6. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 1, which is characterized in that the oxygen yin
Acid and alkali-resistance plastic silk screen is additionally provided between pole carrier and anode.
7. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 1, which is characterized in that the anode
Interior is additionally provided with dispersion pipe.
8. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 1, which is characterized in that the anode
The top of room is additionally provided with gas-liquid separation chamber.
9. a kind of chlorine industry oxygen cathode ion membrane electrolysis slot according to claim 1, which is characterized in that the anode
Interior is additionally provided with anode gusset and anode weir plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067881.5U CN209368364U (en) | 2018-12-11 | 2018-12-11 | A kind of chlorine industry oxygen cathode ion membrane electrolysis slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067881.5U CN209368364U (en) | 2018-12-11 | 2018-12-11 | A kind of chlorine industry oxygen cathode ion membrane electrolysis slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209368364U true CN209368364U (en) | 2019-09-10 |
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ID=67831929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822067881.5U Active CN209368364U (en) | 2018-12-11 | 2018-12-11 | A kind of chlorine industry oxygen cathode ion membrane electrolysis slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209368364U (en) |
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2018
- 2018-12-11 CN CN201822067881.5U patent/CN209368364U/en active Active
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