CN100999824A - Pressure type water electrolytic tank - Google Patents
Pressure type water electrolytic tank Download PDFInfo
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- CN100999824A CN100999824A CNA2006100056445A CN200610005644A CN100999824A CN 100999824 A CN100999824 A CN 100999824A CN A2006100056445 A CNA2006100056445 A CN A2006100056445A CN 200610005644 A CN200610005644 A CN 200610005644A CN 100999824 A CN100999824 A CN 100999824A
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- electrolyzer
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- oxygen
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- water electrolytic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The pressure type water electrolyzing tank is one sealed container with outer frame, partition board, catalyzing electrode, support, diaphragm, positive pole electrolytic cell, negative pole electrolytic cell, insulating layer, flow channel separating strip, and other members. The technological cavity has electrolyte inlet axial electrolyte flow channel, axial electrolyte flow channel, oxygen electrolyzing cell, hydrogen electrolyzing cell, axial oxygen flow channel, radial oxygen flow channel, axial hydrogen flow channel, radial hydrogen flow channel, oxygen outlet, hydrogen outlet, connecting boards stretched beyond the sealed container and connected to a DC power source, etc. The present invention features that all the members are in the same operation pressure and bear no pressure difference and that high pressure hydrogen and oxygen may be output through water electrolysis for application in low cost.
Description
Technical field
The present invention relates to employed equipment in production compound or nonmetallic electrolysis process, be specifically related to the water electrolyzer that uses in a kind of water electrolysis hydrogen producing system.
Background technology
Psasca's law: the liquid in the encloses container, can be to adding pressure thereon, change size ground to all directions be delivered to liquid intravital everywhere with wall of container on.Electrolysis law: any material is in electrolytic process, and Faraday's law is obeyed in quantitatively variation: during electrolysis, separate out the quantity of material on electrode, be directly proportional with strength of current and conduction time by solution, just be directly proportional with electric weight by solution.
The cell arrangement that utilizes electric energy to make certain electrolyte solution be decomposed into other materials is called electrolyzer, and the combination of electrolyzer is called electrolyzer.Water electrolysis is one of main realization means of industrial hydrogen production, passes to direct current, and water electrolyzer just can be by the principle of Faraday's law of electrolysis, continuously output hydrogen and oxygen.
So-called polar structure, unipolarity is that each electrolyzer has a style of one's own, and inserts direct supply separately, bipolarity is to insert direct supply after a plurality of electrolyzer stack one.
So-called press filter type structure, be that materials such as barrier film are placed between the two sides of bipolarity dividing plate (pole plate), form the electrolyzer group, carry out the stack of electrolyzer group, the structure of using the pull bar clamping at two ends or compressing by output and specification requirement configuration quantity then with other method.
Because electrolytic solution and gas all ooze out from cell body easily, the seal washer bearing capacity is limited, by the technical specification of present commercialization water electrolyzer, the oxyhydrogen pressure of normal pressure type output is tens to the hundreds of millimeter water column, and pressure-type output oxyhydrogen pressure is less than 3.2MPa.
The pressure type water electrolytic tank of bipolarity, press filter type is more advanced technology, as long as the pneumatic outlet to system carries out throttle operation, extra energy consumption, just directly the band of output is pressed hydrogen and oxygen, make that transfer of gas and storage are all more convenient, also help follow-up gas purification, dry treatment process.The specification of related device volume and transport pipe is all smaller, and has improved every economic and technical norms.
The turnover runner characteristics of normal pressure type water electrolyzer are: promptly the turnover runner of each bipolarity electrolyzer is taken over the discrete axial runner to cell body separately in the housing radial aperture.And the turnover runner of pressure type water electrolytic tank is integrated in cell body inside, its characteristics: promptly the turnover runner of each bipolarity electrolyzer is in the middle part boring (do not connect housing) of housing radial aperture to its housing, housing drilled in middle hole after the stack of electrolyzer group forms shaft orientation flowing channel, the radial outer end of its shaft orientation flowing channel has sealed structure, prevents electrolytic solution or gas seepage.
Also there is at present the design of the water electrolyzer of several pressure ratings about 20MPa in the world.The CJB type of one of them is that filter-press type water electrolyzer is placed in the circular Steel Pressure Vessels, is full of pure water between Steel Vessel and electrolyzer, as supplementary insulation, is equivalent at pressure resistant vessel of existing pressure type water electrolytic tank overcoat; Characteristics are: turnover runner and existing commercial pressure water cell construction are similar, have the sealing problem of concentration difference between electrolytic solution in the electrolyzer member and the pure water, and structure is also complicated partially.Another kind of Li Huier type in the wrong is the associated plant based on the unipolarity electrolyzer, and positive pole is the nickel tube, and negative pole is the copper wire gauze of nickel plating, adopts asbestos diaphragm.The design of above-mentioned high-pressure system is economical inadequately, and its specification and output are all less, often can only be used for special occasions.
In sum, as long as the pressure condition (it is 28.5MPa that a kind of saying is arranged) that has electrochemical process to react, water just can electrolysis, the water electrolyzer technology of existing commercial application is because of its structural design features, make very big pressure difference or the concentration difference of existence between water electrolytic cell group member and the external environment, be subjected to the restriction of material bearing capacity and air-proof condition, the working pressure that continue to improve device becomes very difficult.In this case, when the user need charge hydrogen or oxygen bottle (15MPa of general requirement is with upward pressure), have to use hydrogen or oxygen compressor to pressurize, increased equipment cost and extra power consumption.
Summary of the invention
The object of the invention provides a kind of water electrolyzer that is used for the water electrolysis hydrogen producing system, need not to consume additional energy, can direct production go out to reach hydrogen, the carrier of oxygen that directly charges steel cylinder pressure (more than the 15MPa), and equipment making, safeguard simple, make that material is easy to obtain, reliable purpose.Eliminated the drawback that equipment, pipeline, flask volume are huge, transportation cost increases that various pressure hydrogen carrier of oxygen production technologies cause.
In order to achieve the above object, technical scheme of the present invention is: water electrolytic cell group (being assembled by housing, dividing plate, catalysis electrode, barrier film and support etc.) adopts radial flow path and shaft orientation flowing channel unlike the prior art, make electrolyzer group member be in isopiestic state, and place within the encloses container.The radial flow path of indication of the present invention is for connecting the fluid channel of interior pond of electrolysis and housing, shaft orientation flowing channel is the fluid channel between electrolyzer housing and the encloses container, encloses container is box-shaped (when the electrolyzer group is rectangle) or cylindrical (when the electrolyzer group is circular) physical construction or the pressure resistant vessel (maintenance of consideration electrolyzer, encloses container can use end cap and bolt that it is sealed at one or more direction openings).
The technical process that technique scheme realizes is: 1. electrolytic solution is through encloses container inner chamber bottom shaft orientation flowing channel; 2. in radial flow path flows into each hydrogen, oxygen electrolyzer respectively; 3. electrolysis produces in hydrogen, the oxygen electrolyzer (have in the middle of the hydrogen-oxygen electrolyzer and the prevent hydrogen or oxygen gas blended barrier film) radial flow path through making progress that produces oxygen and discharges electrolytic solution and hydrogen or oxygen gas in the hydrogen electrolyzer; 4. through hydrogen, the oxygen liquid axial passage on encloses container inner chamber top, flow out encloses container along outlet and enter hydrogen, the oxygen separator that external pipeline goes to system.
In above-mentioned flow process, throttling means by pneumatic outlet are pressed the hydrogen-oxygen band of gas, the hydrogen that produces of electrolysis and the bubble of oxygen are blended in the electrolytic solution continually in hydrogen, oxygen electrolyzer, make that all the electrolyzer members in the encloses container all are under the identical system operation pressure.Control device by prior art regulate and control hydrogen-oxygen pressure difference within ± 150mm water column (safety control index), to prevent that producing oxyhydrogen mixes.Like this, as long as guarantee encloses container enough intensity or rigidity are arranged, under the condition of existing electrolyzer material and sealing property, realize that system operation pressure is high pressure, the output compressed gas can be up to tens of MPas.
Assembling process of the present invention: the first step, with water electrolytic cell housing [2-1], water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], and water electrolytic cell barrier film [2-5] etc. is assembled into electrolyzer, according to the specification requirement of gas production rate, determine the quantity of electrolyzer, form bipolarity electrolyzer group.Second step, use water electrolytic cell housing [2-1], water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], the anodal unipolarity electrolyzer that water electrolytic cell barrier film [2-5] etc. and anodal electrolyzer [3], negative pole electrolyzer [4] are formed and negative polarity electrolyzer are added on the two ends (web plate stretches out encloses container and is connected direct supply outward) of electrolyzer group.In the 3rd step, lay insulation layer [5], runner isolating bar [6], the electrolyzer group of packing at encloses container [1] internal surface.In the 4th step, use container end to be connected, sealing encloses container [1] with bolt.Assembling finishes.
Because the technique scheme utilization, the present invention compared with prior art has the following advantages:
1, under the pressure that electrochemical process can carry out, as long as the encloses container design strength is enough, by the water electrolysis just directly any highly compressed hydrogen of output, carrier of oxygen.
2, sealing is easily between low, the electrolyzer member of electrolyzer construction material requirement of strength.
3, simple in structure, be easy to realize.
Description of drawings
Accompanying drawing 1: a kind of water electrolyzer (rectangle) structural representation: encloses container [1], water electrolytic cell housing [2-1], water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], water electrolytic cell barrier film [2-5], anodal electrolyzer [3], negative pole electrolyzer [4], insulation layer [5], runner isolating bar [6], 7, the electrolytic solution import, 8, the electrolytic solution shaft orientation flowing channel, 9, the electrolytic solution radial flow path, 10, oxygen electrolysis cell cavity, 11, hydrogen electrolysis cell cavity, 12, the oxygen radial flow path, 13, the hydrogen radial flow path, 14, the hydrogen shaft orientation flowing channel, 15, the oxygen shaft orientation flowing channel, 16, hydrogen outlet, 17, oxygen outlet
Accompanying drawing 2: a kind of water electrolyzer (circle) structural representation: encloses container [1], water electrolytic cell housing [2-1], water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], water electrolytic cell barrier film [2-5], anodal electrolyzer [3], negative pole electrolyzer [4], insulation layer [5], runner isolating bar [6], 7, the electrolytic solution import, 8, the electrolytic solution shaft orientation flowing channel, 9, the electrolytic solution radial flow path, 10, oxygen electrolysis cell cavity, 11, hydrogen electrolysis cell cavity, 12, the oxygen radial flow path, 13, the hydrogen radial flow path, 14, the hydrogen shaft orientation flowing channel, 15, the oxygen shaft orientation flowing channel, 16, hydrogen outlet, 17, oxygen outlet
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment one: shown in accompanying drawing 1, it is mainly by encloses container [1], water electrolytic cell housing [2-1], water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], water electrolytic cell barrier film [2-5], anodal electrolyzer [3], negative pole electrolyzer [4], insulation layer [5], runner isolating bar compositions such as [6].The process channel that above-mentioned member forms has electrolytic solution import [7], electrolytic solution shaft orientation flowing channel [8], electrolytic solution radial flow path [9], oxygen electrolysis cell cavity [10], hydrogen electrolysis cell cavity [11], oxygen radial flow path [12], hydrogen radial flow path [13], hydrogen shaft orientation flowing channel [14], oxygen shaft orientation flowing channel [15], oxygen outlet [16], hydrogen outlet [17] etc., and have the direct supply web plate to stretch out encloses container [1] connection direct supply.
In the present embodiment, described encloses container [1] for box-shaped welding rigid structure (box type construction can be reserved one or several direction opening and cappings, treat that assembly such as electrolyzer is packed into after, use bolt that it is sealed, with replacing and the maintenance that makes things convenient for electrolyzer).Water electrolytic cell housing [2-1] is rectangle (plastics) frame, all be drilled with through hole up and down as electrolytic solution radial flow path [9] and oxygen radial flow path [12] and hydrogen radial flow path, water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], water electrolytic cell barrier film [2-5] embeds water electrolytic cell housing groove successively, but riveted and fixed becomes the electrolyzer group.The groove of water electrolytic cell housing has the cooperation function, makes a plurality of electrolyzer groups cooperate according to groove and makes up, and its internals is further compressed.Anodal electrolyzer [3] (boring of oxygen radial flow path is only arranged at its housing top, and dividing plate is welded with the cathode power supply web plate) is assembled at the positive terminal place of electrolyzer group combination; The negative pole end place, assembling negative pole electrolyzer [3] (boring of hydrogen radial flow path is only arranged at its housing top, and dividing plate is welded with the negative power supply web plate).The assembling of whole electrolyzer join finish after, runner isolating bar (long strip shape) is installed in the lower end thereon, after placing encloses container, forms shaft orientation flowing channel [9] [14] [15].
Embodiment two: shown in accompanying drawing 2, it is mainly by encloses container [1], water electrolytic cell housing [2-1], water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], water electrolytic cell barrier film [2-5], anodal electrolyzer [3], negative pole electrolyzer [4], insulation layer [5], runner isolating bar compositions such as [6].The process channel that above-mentioned member forms has electrolytic solution import [7], electrolytic solution shaft orientation flowing channel [8], electrolyzer fluid inlet [9], oxygen electrolysis cell cavity [10], hydrogen electrolysis cell cavity [11], oxygen radial flow path [12], hydrogen radial flow path [13], hydrogen shaft orientation flowing channel [14], oxygen shaft orientation flowing channel [15], oxygen outlet [16], hydrogen outlet [17] etc., and have the direct supply web plate to stretch out encloses container [1] connection direct supply.
In the present embodiment, described encloses container [1] be the round shape bearing structure (columnar structuredly can reserve one or several direction opening and cappings, treat that assembly such as electrolyzer is packed into after, use bolt that it is sealed, make things convenient for the replacing and the maintenance of electrolyzer).Whole electrolyzer group member is circle, and the runner isolating bar is a long strip shape, and assembling principle and function are identical with embodiment one.
Claims (4)
1, a kind of pressure type water electrolytic tank, it is mainly by water electrolytic cell housing [2-1], water electrolytic cell dividing plate [2-2], water electrolytic cell catalysis electrode [2-3], water electrolytic cell supports [2-4], water electrolytic cell barrier film [2-5], anodal electrolyzer [3], negative pole electrolyzer [4], insulation layer [5], runner isolating bar compositions such as [6].Described member all is within the encloses container [1].The process cavity (runner) that above-mentioned member forms has electrolytic solution import [7], electrolytic solution shaft orientation flowing channel [8], electrolyzer radial flow path [9], oxygen electrolysis cell cavity [10], hydrogen electrolysis cell cavity [11], oxygen radial flow path [12], hydrogen radial flow path [13], hydrogen shaft orientation flowing channel [14], oxygen shaft orientation flowing channel [15], oxygen outlet [16], hydrogen outlet [17] etc., and have web plate to stretch out encloses container [1] connection direct supply.It is characterized in that: have an encloses container, its internals chamber and turnover runner have radial flow path and shaft orientation flowing channel setting, make all parts of water electrolytic cell (group) all be under the same working pressure, avoid the material of electrolyzer (group) member and sealing to bear the infringement that big pressure difference may cause.
2, radial flow path according to claim 1 is the inside and outside fluid channel of the electrolyzer that connects the electrolyzer housing.
3, shaft orientation flowing channel according to claim 1 is the fluid channel between electrolyzer housing and the encloses container.
4, encloses container according to claim 1 is box-shaped or mechanical rigid structure or pressure resistant vessel structure such as cylindrical, allows one or more direction openings, can use the sealing of end cap and bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100056445A CN100999824A (en) | 2006-01-13 | 2006-01-13 | Pressure type water electrolytic tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100056445A CN100999824A (en) | 2006-01-13 | 2006-01-13 | Pressure type water electrolytic tank |
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| Publication Number | Publication Date |
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| CN100999824A true CN100999824A (en) | 2007-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100056445A Pending CN100999824A (en) | 2006-01-13 | 2006-01-13 | Pressure type water electrolytic tank |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597326A (en) * | 2009-08-19 | 2012-07-18 | 下一氢公司 | Proton exchange membrane water electrolyser cell module design |
| CN102099507B (en) * | 2008-07-15 | 2014-09-03 | 下一氢公司 | Electrolyser module |
| CN111118536A (en) * | 2020-01-20 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic chamber and electrolytic cell suitable for gas outlet in the middle and edge |
| CN111733428A (en) * | 2020-07-27 | 2020-10-02 | 广东省新材料研究所 | An electrolysis unit for electrolysis of water to make gas, an electrolysis of water to make gas device and its application and the process of electrolyzed water to make gas |
| WO2023179253A1 (en) * | 2022-03-21 | 2023-09-28 | 王秉泮 | Alkaline water electrolysis system for hydrogen production |
-
2006
- 2006-01-13 CN CNA2006100056445A patent/CN100999824A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102099507B (en) * | 2008-07-15 | 2014-09-03 | 下一氢公司 | Electrolyser module |
| CN102597326A (en) * | 2009-08-19 | 2012-07-18 | 下一氢公司 | Proton exchange membrane water electrolyser cell module design |
| CN111118536A (en) * | 2020-01-20 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic chamber and electrolytic cell suitable for gas outlet in the middle and edge |
| CN111733428A (en) * | 2020-07-27 | 2020-10-02 | 广东省新材料研究所 | An electrolysis unit for electrolysis of water to make gas, an electrolysis of water to make gas device and its application and the process of electrolyzed water to make gas |
| CN111733428B (en) * | 2020-07-27 | 2021-06-15 | 广东省科学院新材料研究所 | An electrolysis unit for electrolysis of water to make gas, an electrolysis of water to make gas device and its application and the process of electrolyzed water to make gas |
| WO2023179253A1 (en) * | 2022-03-21 | 2023-09-28 | 王秉泮 | Alkaline water electrolysis system for hydrogen production |
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