CN201785503U - Improved nitrogen replacement device for hydrogen production system, - Google Patents
Improved nitrogen replacement device for hydrogen production system, Download PDFInfo
- Publication number
- CN201785503U CN201785503U CN2010205198389U CN201020519838U CN201785503U CN 201785503 U CN201785503 U CN 201785503U CN 2010205198389 U CN2010205198389 U CN 2010205198389U CN 201020519838 U CN201020519838 U CN 201020519838U CN 201785503 U CN201785503 U CN 201785503U
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- China
- Prior art keywords
- valve
- stopping valve
- cut
- nitrogen
- nitrogen replacement
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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 utility model belongs to the technical field of hydrogen production, and provides an improved nitrogen replacement device for a hydrogen production system, which comprises an oxygen separator, a hydrogen separator and a nitrogen replacement pipeline which comprises a one-way valve (3) and a cut-off valve (4) and is arranged between the oxygen separator and the hydrogen separator in a connecting way, wherein the nitrogen replacement pipeline also comprises a cut-off valve (5) and a cut-off valve (6), and the cut-off valve (6) is arranged between a nitrogen input end and the cut-off valve (4) in a communicating way; and the cut-off valve (5) is arranged between the cut-off valve (4) and the cut-off valve (6) in a communicating way. According to the improved nitrogen replacement device for the hydrogen production system, the safety and stability are high in a normal operation or standby state, even if the cut-off valve 4 is not turned off or the one-way valve 3 fails, lye or gas from the hydrogen production system can be drained by the normally open cut-off valve 5, can not flow into the nitrogen system, and can be easily found and treated by operators; and the operation process is simple and convenient.
Description
Technical field
The utility model relates to the hydrogen generating system nitrogen replaceable equipment, relates in particular to a kind of improved hydrogen generating system nitrogen replaceable equipment.
Background technology
Referring to Fig. 1, a kind of traditional hydrogen generating system nitrogen replaceable equipment comprises oxygen separator 1 ", hydrogen separator 2 " and nitrogen replacement pipeline.Hydrogen producer is mode hydrogen producing in next life and the oxygen by brine electrolysis among the figure; because therefore hydrogen and oxygen all must use before start as inertia and protect the nitrogen of gas to carry out the oxygen that exists in the exchange system in case take place to mix will potential explosion hazard at every turn.And the operating pressure of middle compacting hydrogen system is usually about 15 kilograms (1.5MPa); be used for the metathetical nitrogen pressure usually only less than 4 kilograms; after finishing displacement; the valve that the operative employee has forgotten to close nitrogen replacement easily through the regular meeting operation (perhaps valve closes but lost efficacy) of just driving; rising along with the hydrogen generating system operating pressure; surmount the pressure that is used for the metathetical nitrogen system soon; cause the alkali lye (KOH) even the hydrogen of hydrogen generating system; oxygen is pressed into nitrogen system under the effect of pressure reduction; when producing major safety risks; also may directly jeopardize production link---the space division system of nitrogen, so other user of nitrogen.
Referring to Fig. 2, for fear of accident, there is hydrogen manufacturing producer just between the separator of nitrogen replacement system and hydrogen producer, to install check valve additional, promptly comprise oxygen separator 1 ', hydrogen separator 2 ', check valve 3 ', stopping valve 4 ' and nitrogen replacement pipeline, thereby the alkali lye that prevents hydrogen generating system enters into nitrogen system.Yet the reliability of check valve 3 ' ensures less than absolute, still may cause the generation of such accident because of check valve 3 ' fault.Because check valve 3 ' the unreliable accident that causes still happens occasionally.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of hydrogen generating system nitrogen replaceable equipment that can significantly improve processing safety is provided.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of improved hydrogen generating system nitrogen replaceable equipment, comprise oxygen separator, hydrogen gas segregator and be connected therebetween the nitrogen replacement pipeline that comprises check valve 3 and stopping valve 4, described nitrogen replacement pipeline also comprises stopping valve 5 and stopping valve 5, stopping valve 6 is communicated between nitrogen input terminus and the stopping valve 4, and stopping valve 5 is communicated between stopping valve 4 and the stopping valve 6.
Under normal operation or the stand-by state, stopping valve 4 and 6 is all closed, and stopping valve 5 then is a normally open.
The beneficial effects of the utility model: normally security and stability are high under operation or the stand-by state, even the situation of closing stopping valve 4 or check valve 3 inefficacies occurs leaking, the alkali lye of hydrogen generating system or gas also can be unlikely to enter nitrogen system by stopping valve 5 earial drainages of often holding, and operator also are very easy to find and handle; Operating process is simple and convenient.
Description of drawings
The potential safety hazard synoptic diagram that Fig. 1 hydrogen producer nitrogen replacement system exists.
Fig. 2 is the common hydrogen generating system nitrogen replaceable equipment synoptic diagram of taking of hydrogen producer producer.
Fig. 3 is a kind of improved hydrogen generating system nitrogen replaceable equipment synoptic diagram according to this practical preferred embodiment.
Embodiment
Referring to Fig. 3, a kind of improved hydrogen generating system nitrogen replaceable equipment comprises oxygen separator 1, hydrogen gas segregator 2 and is arranged on nitrogen replacement pipeline between them that the nitrogen replacement pipeline comprises check valve 3, stopping valve 4, stopping valve 5 and stopping valve 6.The output terminal of check valve 3 and oxygen separator 1, hydrogen gas segregator 2 are communicated with through piping.The input terminus of check valve 3 is communicated with an end of stopping valve 4 through piping.The other end of stopping valve 4 is communicated with an end of stopping valve 6, and the other end of stopping valve 6 is communicated with the nitrogen input terminus.Stopping valve 5 links to each other with connecting tube between stopping valve 4 and the stopping valve 6.
Under normal operation of equipment at ordinary times or the stand-by state, stopping valve 4 and 6 is all closed, and stopping valve 5 then is a normally open when flat.Concrete operation method is: when needing to use the nitrogen replacement system before hydrogen generating system is driven, open stopping valve 6, at this moment hearing has nitrogen to discharge from the stopping valve of often opening at ordinary times 5, impurity also can therefrom be discharged, after treating normally, close stopping valve 5, open stopping valve 4, then push check valve 3 under the nitrogen pressure effect open, nitrogen enters the oxygen that exists in system's dilution exchange system.When displacement is finished, at first close stopping valve 4, open stopping valve 5 then, nitrogen and impurity can gush from stopping valve 5 like this, close stopping valve 6 at last.Even occur leaking the situation of closing stopping valve 4 or check valve 3 inefficacies like this, the alkali lye of hydrogen generating system or gas also can be unlikely to enter nitrogen system by stopping valve 5 earial drainages of often holding, and operator also are very easy to find and handle.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, do not breaking away under the prerequisite of the utility model design, make concrete change or change and all belong to protection domain of the present utility model.
Claims (2)
1. improved hydrogen generating system nitrogen replaceable equipment, comprise oxygen separator, hydrogen gas segregator and be connected therebetween the nitrogen replacement pipeline that comprises check valve (3) and stopping valve (4), it is characterized in that: described nitrogen replacement pipeline also comprises stopping valve (5) and stopping valve (6), stopping valve (6) is communicated between nitrogen input terminus and the stopping valve (4), and stopping valve (5) is communicated between stopping valve (4) and the stopping valve (6).
2. improved hydrogen generating system nitrogen replaceable equipment according to claim 1 is characterized in that: normally under operation or the stand-by state, stopping valve (4) and (6) are all closed, and stopping valve (5) then is a normally open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205198389U CN201785503U (en) | 2010-09-06 | 2010-09-06 | Improved nitrogen replacement device for hydrogen production system, |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205198389U CN201785503U (en) | 2010-09-06 | 2010-09-06 | Improved nitrogen replacement device for hydrogen production system, |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201785503U true CN201785503U (en) | 2011-04-06 |
Family
ID=43817477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205198389U Expired - Lifetime CN201785503U (en) | 2010-09-06 | 2010-09-06 | Improved nitrogen replacement device for hydrogen production system, |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201785503U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674055A (en) * | 2016-01-19 | 2016-06-15 | 康乃尔化学工业股份有限公司 | Nitrogen valve group used for safety protection |
| CN113943952A (en) * | 2021-09-22 | 2022-01-18 | 中国船舶重工集团公司第七一八研究所 | Automatic nitrogen charging control system and automatic nitrogen charging control method for hydrogen production by water electrolysis |
| CN114182295A (en) * | 2021-11-19 | 2022-03-15 | 中国华能集团清洁能源技术研究院有限公司 | Automatic nitrogen replacement device and method for water electrolysis hydrogen production system |
-
2010
- 2010-09-06 CN CN2010205198389U patent/CN201785503U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674055A (en) * | 2016-01-19 | 2016-06-15 | 康乃尔化学工业股份有限公司 | Nitrogen valve group used for safety protection |
| CN113943952A (en) * | 2021-09-22 | 2022-01-18 | 中国船舶重工集团公司第七一八研究所 | Automatic nitrogen charging control system and automatic nitrogen charging control method for hydrogen production by water electrolysis |
| CN113943952B (en) * | 2021-09-22 | 2023-12-05 | 中国船舶重工集团公司第七一八研究所 | Automatic nitrogen charging control system and automatic nitrogen charging control method for water electrolysis hydrogen production |
| CN114182295A (en) * | 2021-11-19 | 2022-03-15 | 中国华能集团清洁能源技术研究院有限公司 | Automatic nitrogen replacement device and method for water electrolysis hydrogen production system |
| CN114182295B (en) * | 2021-11-19 | 2023-09-29 | 中国华能集团清洁能源技术研究院有限公司 | Automatic nitrogen replacement device and method for electrolytic water hydrogen production system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |
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| CX01 | Expiry of patent term |