CN2059920U - Electrolyzer for high-purity hydrogen generator - Google Patents
Electrolyzer for high-purity hydrogen generator Download PDFInfo
- Publication number
- CN2059920U CN2059920U CN 89201692 CN89201692U CN2059920U CN 2059920 U CN2059920 U CN 2059920U CN 89201692 CN89201692 CN 89201692 CN 89201692 U CN89201692 U CN 89201692U CN 2059920 U CN2059920 U CN 2059920U
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- hydrogen generator
- electrolyzer
- purity hydrogen
- end plate
- metal end
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Abstract
The utility model relates to an electrolyzer for high-purity hydrogen generator which belongs to a filter press-type electrolyzer. The electrolyzer for high-purity hydrogen generator is suitable to be used as a hydrogen source for the gas chromatograph and provides the gas and the carried gas for the chromatograph. The electrolyzer for high-purity hydrogen generator is characterized in that the electrolysis process system uses a single group-type single liquid chamber electrolytic bath, the filtering twice method, the electrolytic bath with the special diaphragm, the metal net with three kinds of numbers and the structure without the groove frame to obtain the hydrogen with high purity. The utility model has simple structure, low cost and the voltage is low for the electrolytic working and the electrolytic bath has good heat radiating effect. So the electrolyzer for high-purity hydrogen generator has high electrolytic efficiency, long service life, large gas production and simple assembling process.
Description
The utility model relates to a kind of filter press-type electrolyzer of high-purity hydrogen, is specially adapted to do the sources of hydrogen of gas chromatograph, for chromatographic instrument provides combustion gas and carrier gas.
Small-sized hydrogen generator is nearly corollary apparatus that grew up along with the widespread use of gas chromatograph in, 20 year.Hydrogen generator uses the alkali lye electrolytic process mostly, and its key device is an electrolyzer.At present most widely used is biliquid constant pressure filter formula electrolyzer hydrogen generator, electrolytic solution is all arranged in two Room about the electrolyzer of this producer, owing to need carry out balance, can produce the air-flow wild effect when balance is bad, sometimes even spray alkali accident takes place to the pressure of two Room; Because bottom, two Room is communicated with, and contains oxygen in the hydrogen easily, causes hydrogen purity low, need specially to hydrogen deoxidation purifying; Also have, two liquid chambers are all worked under certain pressure, and alkali lye also bears certain pressure, makes moisturizing very difficult, and this device also exists complex structure, volume to reach shortcomings such as heaviness greatly.Chinese patent provides a kind of novel hydrogen generator for No. 87205825, this hydrogen generator adopts single liquid chamber filter press type electrolyzer, in miniaturization, improve hydrogen purity, operational safety is reliable, aspects such as reduction cost have certain advantage, but still there is following shortcoming: the first, the structure of electrolyzer and packaging technology are complicated, and the end plate by the ABS resin compression molding is adopted in the both sides of electrolyzer, and contain two " 0 " type rubber rings, seven metal plates, six molded electrolyzer frames of ABS resin spray, 12 rubber gaskets, totally two nineteen parts are formed, so its structure and packaging technology are all complicated; The second, because electrolysis end plate and groove frame are all made with ABS resin, the heat dispersion of electrolyzer is relatively poor; The 3rd, because heat dispersion is poor, limited the raising of Faradaic current, cause gas production rate low, the effect of promptly working efficient is low; The 4th, the electrolyte container of this hydrogen generator requires operating voltage up to 12 volts; The 5th, because this electrolyzer adopts the different material structure of the coefficient of expansion, sealing difficulty is bigger, has the hidden danger of leakage and spray alkali; The 6th, the barrier film of this electrolyzer is to form with 15 layers of asbestos paper compacting, and 60 orders and two kinds of wire nettings of 16 orders are adopted in the barrier film both sides, and this structure exists more serious burning and loses phenomenon, causes working life to shorten.In addition, this device also exists the deficiency that the barrier film resistance to air loss is relatively poor and electrolyzer can only vertically be placed.
In order to solve the problems referred to above of prior art, make hydrogen generator supporting with gas chromatograph better, the utility model provides a kind of perfect heat-dissipating, electric tank working efficient height, gas production rate is big, and operating voltage is low, long service life, operating pressure height, electrolyzer can horizontal or vertical placements, simple in structure and high-purity hydrogen generator electrolyzer that cost is low.
Fig. 1 is the electrolysis flow system skeleton diagram of high-purity hydrogen gas generator.
Fig. 2 is the structural profile synoptic diagram of electrolyzer among Fig. 1.
The utility model is made of electrolysis flow system and current stabilization control circuit (10) two large divisions. Its characteristics are to have on the metal end plate (11) as negative electrode a circular hole and return liquid device (18) and communicate, return on the liquid device (18) hydrogen outlet (19) is arranged, and as the upper a pair of liquid in-out mouth (20) of the metal end plate (12) of anode, (21) communicate with electrolyte container (1), in negative electrode and positive electrode metal end plate (11), low mesh number wire netting (13) is housed (12), middle order is counted wire netting (14), high order is counted wire netting (15), sealed insulation pad (16) and barrier film (17), insulation screw and rubber ring (not marking among the figure) are with metal end plate (11), (12) couple together, and with sealed insulation pad (16) clamping, electrolytic cell (2) is formed except liquid in-out The airtight cavity that mouth (20), (21) and hydrogen outlet (19) are in communication with the outside. Sealed insulation pad (16) had both played the effect of electrolytic cell frame, played again the effect of sealed insulation. Metal end plate (11) is as negative electrode, and metal end plate (12) is as anode. When current stabilization control circuit (10) during to above-mentioned two electrode power supply, flow into liquid in-out mouth (20) from electrolyte container (1) and enter electrolytic cell (2), behind anode-side wire netting (13), (14), (15), barrier film (17) is infiltrated, and produce oxygen respectively and hydrogen at anode-side and the cathode side of barrier film (17). Oxygen is got back to electrolyte container (1) through liquid in-out mouth (21), the hydrogen outlet (19) of hydrogen through returning liquid device (18) enters hydrogen gas cleaner (3), purification enters secondary purifier (7) by check valve (5) output, is defeated by simultaneously pressure switch (6). When Hydrogen Vapor Pressure was higher than rated operating pressure, pressure switch (6) action quit work electrolytic cell (2), plays the safeguard protection effect. The input secondary purifier (7) hydrogen behind double purification, respectively by switch valve (8), (9) to two gas chromatograph air feed. In addition, the hydrogen from hydrogen gas cleaner (3) comes out when transferring to check valve (5), also has one the tunnel to transfer to safety air release valve (4). When pressure switch (6) was out of control, safety air release valve (4) can be exitted outside this generator of trend, guarantees this generator work safety. This single liquid chamber electrolytic cell (2) the smoothly key of work is that it is furnished with high, medium and low order and counts wire netting (13), (14), (15) and have good infiltration ability and bubble-tight barrier film (17). These measures can guarantee during operation that the cathode side of barrier film (17) remains no liquid status; And barrier film (17) itself is moistening, be pressed on the constantly moisture content on the moistening barrier film (17) of electrolysis of wire netting (13) on the barrier film (17), (14), (15), and anode-side can guarantee the continuous supply of moisture content. Electrolysis can be carried out continuously like this, and hydrogen is generated continuously. Because the utility model has also adopted twice filtration, and hydrogen purity is improved greatly, reaches 99.999%.
The utlity model has following advantage:
1. cost simple in structure is low.Its electrolyzer (2) belongs to no mount structure, has saved seal washer and electrolyzer frame, and the single-group type electrolyzer mainly be made up of three workpiece of whole electrolyzer (2);
2. electrolyzer (2) operating voltage is low, only needs 2 volts;
3. because metal end plate (11), (12) good heat dissipation effect, its working current density is the twice of multipole plate electrolytic cell currents density, reach 4000 peaces/square metre, thereby the effective rate of utilization of electrolyzer (2) is improved;
4. because barrier film (17) both sides are furnished with high order and count wire netting (15), the burning that has solved diaphragm material is lost problem, can eliminate the hidden danger of spray alkali, has prolonged work-ing life;
5. operating pressure height, the resistance to air loss of barrier film (17) reaches 6.7 kg/cm;
6. gas production rate is big;
7. electrolyzer (2) can horizontal positioned, also can vertically place, and packaging technology requires low;
8. the hydrogen purity height reaches 99.999%.
Below introduce most preferred embodiment of the present utility model.Electrolyzer (2) is the single-group type electrolyzer, and the voltage that current stabilization pilot circuit (10) provides is 2V, and electric current is 50A.Metal end plate (11), (12) and basic, normal, high order are counted wire netting (13), (14), (15) and can be made with any etch-proof insulating material, high order is counted wire netting (15) and is made by two-layer 180-500 purpose stainless steel or nickel screen, middle order is counted wire netting (14) and is made by two-layer 40-120 order stainless steel or nickel screen, and low mesh number wire netting (13) is made by two-layer 10-30 order stainless steel or nickel screen.Barrier film (17) is pressed into 1.2 centimetres of asbestos layers by 10-12 layer asbestos paper and makes.Metal end plate (11), (12) can be made Any shape such as annular, oval ring, rectangle or square according to service requirements.Other parts can adopt the commercially available prod.
Claims (7)
1, the high-purity hydrogen generator electrolyzer is the device that a kind of water electrolysis method is produced hydrogen, it is characterized in that having on the metal end plate (11) of single-group type list liquid chamber electrolyzer (2) as negative electrode a circular hole to communicate with time liquid device (18), return on the liquid device (18) hydrogen outlet (19) is arranged, go up a pair of liquid in-out mouth (20) as anodic metal end plate (12), (21) communicate with electrolyte container (1), at negative electrode and anode metal end plate (11), low mesh number wire netting (13) is housed (12), middle order is counted wire netting (14), high order is counted wire netting (15), sealed insulation pad (16) and barrier film (17).
2, high-purity hydrogen generator electrolyzer according to claim 1, it is characterized in that above-mentioned low mesh number wire netting (13) is made of two-layer 10-30 purpose stainless (steel) wire, middle order is counted wire netting (14) and is made of two-layer 40-120 purpose stainless (steel) wire, and high order is counted wire netting (15) and is made of two-layer 180-500 purpose stainless (steel) wire.
3, high-purity hydrogen generator electrolyzer according to claim 1 is characterized in that above-mentioned barrier film (17) made by the asbestos layer that 10-12 layer asbestos paper is pressed into 1.2 mm thick.
4, high-purity hydrogen generator electrolyzer according to claim 1 is characterized in that above-mentioned metal end plate (11), (12) are annulars.
5, high-purity hydrogen generator electrolyzer according to claim 1 is characterized in that above-mentioned metal end plate (11), (12) are oval rings.
6, high-purity hydrogen generator electrolyzer according to claim 1 is characterized in that above-mentioned metal end plate (11), (12) are orthogonal.
7, high-purity hydrogen generator electrolyzer according to claim 1 is characterized in that above-mentioned metal end plate (11), (12) are foursquare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201692 CN2059920U (en) | 1989-02-16 | 1989-02-16 | Electrolyzer for high-purity hydrogen generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201692 CN2059920U (en) | 1989-02-16 | 1989-02-16 | Electrolyzer for high-purity hydrogen generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2059920U true CN2059920U (en) | 1990-08-01 |
Family
ID=4859558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89201692 Expired - Lifetime CN2059920U (en) | 1989-02-16 | 1989-02-16 | Electrolyzer for high-purity hydrogen generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2059920U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045013C (en) * | 1993-05-29 | 1999-09-08 | 中国科学院大连化学物理研究所 | High-efficient microporous diaphragm water electrolyzing bath |
| CN103668316A (en) * | 2013-07-02 | 2014-03-26 | 苏州天华有色金属制品有限公司 | Diaphragm for electrolytic tank |
| CN103757660A (en) * | 2013-07-02 | 2014-04-30 | 苏州天华有色金属制品有限公司 | Stable performance electrolyzer |
| CN111850590A (en) * | 2019-04-25 | 2020-10-30 | 上海潓美医疗科技有限公司 | Extended ionic membrane electrolytic cell |
-
1989
- 1989-02-16 CN CN 89201692 patent/CN2059920U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045013C (en) * | 1993-05-29 | 1999-09-08 | 中国科学院大连化学物理研究所 | High-efficient microporous diaphragm water electrolyzing bath |
| CN103668316A (en) * | 2013-07-02 | 2014-03-26 | 苏州天华有色金属制品有限公司 | Diaphragm for electrolytic tank |
| CN103757660A (en) * | 2013-07-02 | 2014-04-30 | 苏州天华有色金属制品有限公司 | Stable performance electrolyzer |
| CN111850590A (en) * | 2019-04-25 | 2020-10-30 | 上海潓美医疗科技有限公司 | Extended ionic membrane electrolytic cell |
| US11879180B2 (en) | 2019-04-25 | 2024-01-23 | Shanghai Asclepius Meditec Co., Ltd. | Expanded ion-exchange membrane electrolysis cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |