CN100587313C - Combustible gas pressure container with multistage backfire fire-proof device - Google Patents
Combustible gas pressure container with multistage backfire fire-proof device Download PDFInfo
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- CN100587313C CN100587313C CN200610156586A CN200610156586A CN100587313C CN 100587313 C CN100587313 C CN 100587313C CN 200610156586 A CN200610156586 A CN 200610156586A CN 200610156586 A CN200610156586 A CN 200610156586A CN 100587313 C CN100587313 C CN 100587313C
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- pressure container
- gas pressure
- combustible gas
- way valve
- tank body
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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
- Y02E60/32—Hydrogen storage
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Abstract
The invention discloses a combustible gas pressure vessel with a backfire and fireproofing device, comprising a vessel body provided thereon with a gas inlet pipeline connected with an upstream gas source and a gas supply pipeline connected with a downstream combustor, and a first backfire and fireproofing device arranged in the position near to the vessel body inside the gas supply pipeline, wherein a first one-way valve is also arranged in the position near to the vessel body inside the gas supply pipeline; and the direction of the one-way valve is set so that the surrounding air is allowedto pass through the one-way valve and enter the vessel body of the combustible gas pressure vessel.
Description
Technical field
Generally, the present invention relates to a kind of combustible gas pressure container.More particularly, the present invention relates to a kind of combustible gas pressure container with multistage backfire fire-proof device.
Background technique
In design, manufacturing and the using process of pressurized container, the Security of pressurized container is an aspect of can not ignore.Specifically for combustible gas pressure container, its Security is a primary aspect especially.
Day by day frequently various along with human being's production and life activity, increasing to the demand of the energy.Yet thing followed phenomenon but is that the order of for example fossil energy sources of coal, oil, rock gas etc. is gradually exhausted.And the negative effect that the production of fossil energy sources and use cause environment also more and more causes to be paid close attention to and anxiety widely.The good news is, accelerate exploitation and use the non-fossil energy sources of cleaning to become current knowledgeable people's common recognition already." hydrogen fuel " energy is because its preparation and store relatively easily and stable, and the use field is extensive relatively, thereby the degree of depth of its industrial applications and range are led over clean energy resourcies such as wind energy, solar energy on the initiative meaning.
At present cause a big factors of restriction to be to promoting the use of of hydrogen fuel energy sources: the safety issue of hydrogen fuel energy sources is solved as yet at all.The general existing way of hydrogen fuel energy sources is the hydrogen that is contained in the pressurized container, or is contained in hydrogen and oxygen mixed gas (hereinafter referred to as hydrogen and oxygen mixture) in the pressurized container.The use of hydrogen fuel energy sources generally is that hydrogen or the hydrogen and oxygen mixture that will be contained in the pressurized container burn by catheter directed firing unit, and then the heat energy that burning obtains directly utilized, perhaps the heat energy that again burning is obtained carry out corresponding conversion and the energy that obtains other types such as mechanical energy to be used for various uses.
Similar with the burning that is contained in other combustible fuel gas in the pressurized container, the burning of hydrogen fuel energy sources also is subjected to the puzzlement of tempering problem.Here said " tempering " is meant when the variation in pressure of the combustible fuel gas in the pressurized container that is contained in combustible fuel gas or the variation in pressure in the conduit between this pressurized container and the firing unit, flame on the firing unit causes the blast of danger even pressurized container along reverse importing conduit or even pressurized container.The tempering of hydrogen fuel energy sources is more more dangerous than the tempering of other combustible fuel gas, this be because since the inflammable and explosive characteristic of hydrogen with and the severity of blast, the tempering of hydrogen fuel energy sources generally all can lead to the heavy losses of heavy explosion and various resource (even comprise people life).
In view of the foregoing, in the prior art, combustion gas, acetylene gas for example, utilized device use long as far as possible gas conduct pipe (for example, at least 30 meters) usually, thereby interrupt tempering by the method for bending gas conduct pipe when finding tempering.
In the hydrogen fuel energy sources utilized device, the also additional anti-locking apparatus of tempering that uses a kind of " back-fire preventer " by name, this back-fire preventer is generally positioned near hydrogen fuel energy sources pressure vessel outlet place, is connected with conduit.Thereby in case tempering takes place, back fire flame was suppressed by this back-fire preventer before will entering pressurized container and extinguishes, thereby the protection pressurized container makes it to avoid blast.
Fig. 1 shows a kind of combustible gas pressure container with backfire fire-proof device that had existed already in the prior art in exemplary mode.Described combustible gas pressure container has tank body 1, this tank body 1 is generally elongated shape, and be provided with air inlet pipeline that links to each other with the source of the gas 2 of upstream and the supply air line that links to each other with the burner 3 in downstream, one one-way valve 4 wherein can be set in air inlet pipeline, one one-way valve 5 can be set in supply air line, the direction setting of one-way valve 4 is: allow inflammable gas to flow to tank body 1 from source of the gas 2 and forbid reverse flow, the direction setting of one-way valve 5 is: allow inflammable gas to flow to burner 3 from tank body 1 and forbid reverse flow.In described supply air line with the contiguous position of described tank body 1 on, be provided with a back-fire flame damper 6.
Yet the above-mentioned long as far as possible gas conduct pipe and the use of back-fire preventer can not guarantee absolutely effective.In case its inefficacy, will lead to the blast and the loss, thereby and this be unacceptable also be unallowed.
In addition, the inventor has also found the characteristic a kind of rarely known by the people of hydrogen fuel energy sources pressurized container: " quick-fried contracting " characteristic.
The performance of " quick-fried the contracting " of hydrogen fuel energy sources pressurized container is: when the burner generation tempering supplied with by hydrogen fuel energy sources (especially hydrogen and oxygen mixture) pressurized container, moment can be taken place and sharply be descended in the pressure in this hydrogen fuel energy sources pressurized container.
Because tempering causes the pressure moment in the hydrogen fuel energy sources pressurized container sharply to descend, the speed that certainly will cause its back fire flame to be inhaled in the pressurized container is more faster than the speed that the back fire flame of general fuel is inhaled into, even thereby having adopted above-mentioned two kinds of preventive measure, hydrogen fuel energy sources (especially hydrogen and oxygen mixture) pressurized container also almost is difficult to blast after tempering takes place with avoiding.
Characteristic is present in the pressurized container of hydrogen fuel energy sources highlightedly though the inventor finds above-mentioned " quick-fried contracting ", yet can not infer therefrom for other inflammable gas energy and never have this phenomenon.
Summary of the invention
Because the puzzlement in the above-mentioned prior art field, the inventor reduces to contract because of tempering the is quick-fried possibility of blasting of the pressurized container of combustible fuel gas (especially hydrogen fuel energy sources) minimum even gets rid of as its target of trying hard to reach or even mission.
For realizing above-mentioned target, the inventor provides a kind of combustible gas pressure container at this, described combustible gas pressure container has tank body, this tank body is provided with air inlet pipeline that links to each other with the source of the gas of upstream and the supply air line that links to each other with the burner in downstream, in described supply air line with the contiguous position of described tank body on, be provided with conventional back-fire flame damper, the back-fire flame damper of described routine is called the first back-fire flame damper, it is characterized in that:
The position contiguous in described supply air line with described tank body, also be provided with one first one-way valve, the direction of described first one-way valve is arranged to: when the described first back-fire flame damper fails to stop the tempering that stems from described burner fully, described first one-way valve allows surrounding atmosphere to enter the inside of the tank body of described combustible gas pressure container by described first one-way valve, but the inflammable gas of tank interior of forbidding described combustible gas pressure container from described first one-way valve by overflowing.
Because when described burner generation tempering and the described first back-fire flame damper fail to stop this tempering fully, described first one-way valve allows surrounding atmosphere to enter the inside of the tank body of described combustible gas pressure container by described first one-way valve, therefore, the tank interior of described combustible gas pressure container is because " quick-fried the contracting " that tempering caused---that is the rapid decline of instantaneous pressure is inhibited in time, thereby back fire flame can not be inhaled into described combustible gas pressure container owing to instantaneous negative pressure occurring, thereby described combustible gas pressure container is avoided the danger of exploding.
The inventor also can comprise following optional feature at the combustible gas pressure container with backfire fire-proof device that this provides.
Also be provided with one second one-way valve in the inflammable gas pipeline in the tank body of-described combustible gas pressure container.
Also be provided with one second back-fire flame damper in the inflammable gas pipeline in the tank body of-described combustible gas pressure container.
-described inflammable gas is a kind of in the following option: the mixed gas of acetylene, rock gas, liquefied petroleum gas (LPG), hydrogen and oxygen.
-described inflammable gas is the mixed gas of hydrogen and oxygen.
The cracking pressure scope of-described one-way valve is 0.00035MPa to 0.035MPa.
Below in conjunction with drawings and Examples, composition of the present invention, structure, working principle and beneficial effect are further described.
Description of drawings
Fig. 1 is a kind of schematic representation with combustible gas pressure container of single backfire fire-proof device of the prior art.
Fig. 2 is the schematic representation according to the combustible gas pressure container with multistage backfire fire-proof device of first exemplary embodiment of the present invention.
Fig. 3 is the schematic representation according to the combustible gas pressure container with multistage backfire fire-proof device of second exemplary embodiment of the present invention.
Fig. 4 is the schematic representation according to the combustible gas pressure container with multistage backfire fire-proof device of the 3rd exemplary embodiment of the present invention.
Among each figure, for the purpose of clear demonstration and easy to understand, each constituent elements is proportionally drawn.
Embodiment
Fig. 2 is the schematic representation according to the combustible gas pressure container with multistage backfire fire-proof device of first exemplary embodiment of the present invention.The pressurized standard of described pressurized container is 1.05MPa.Described combustible gas pressure container has tank body 1, this tank body 1 is preferably elongated cylindrical, and be provided with air inlet pipeline that links to each other with the source of the gas 2 of upstream and the supply air line that links to each other with the burner 3 in downstream, one one-way valve 4 wherein can be set in air inlet pipeline, one one-way valve 5 can be set in supply air line, the direction setting of one-way valve 4 is: allow inflammable gas to flow to tank body 1 from source of the gas 2 and forbid reverse flow, the direction setting of one-way valve 5 is: allow inflammable gas to flow to burner 3 from tank body 1 and forbid reverse flow.
In described supply air line with the contiguous position of described tank body 1 on, be provided with conventional back-fire flame damper 6, the back-fire flame damper of described routine is called the first back-fire flame damper at this.
More than be provided with of the prior art be provided with identical.
As shown in Figure 2, except being provided with the identical above-mentioned setting with of the prior art, in first exemplary embodiment of the present invention, the position contiguous in described supply air line with described tank body 1, also be provided with one first one-way valve 7, the direction of described first one-way valve 7 is arranged to: when the described first back-fire flame damper 6 fails to stop the tempering that stems from described burner fully, described first one-way valve 7 allows surrounding atmospheres to enter the inside of the tank body 1 of described combustible gas pressure container by described first one-way valve 7, but the inflammable gas of tank body 1 inside of forbidding described combustible gas pressure container from described first one-way valve 7 by overflowing.
Because when described burner generation tempering and the described first back-fire flame damper fail to stop this tempering fully, described first one-way valve 7 allows surrounding atmosphere to enter the inside of the tank body 1 of described combustible gas pressure container by described first one-way valve 7, therefore, the inside of the tank body 1 of described combustible gas pressure container is because " quick-fried the contracting " that tempering caused---that is the rapid decline of instantaneous pressure is inhibited in time, thereby back fire flame can not be inhaled into described combustible gas pressure container owing to instantaneous negative pressure occurring, thereby described combustible gas pressure container is avoided the danger of exploding.
Fig. 3 is the schematic representation according to the combustible gas pressure container with multistage backfire fire-proof device of second exemplary embodiment of the present invention.
As shown in Figure 3, except all of the combustible gas pressure container with multistage backfire fire-proof device according to first exemplary embodiment of the present invention illustrated in fig. 2 are provided with, also be provided with one second one-way valve 8 in the inflammable gas pipeline in the tank body 1 of described combustible gas pressure container.The direction setting of this second one-way valve 8 becomes only to allow inflammable gas not allow inflammable gas from the downstream flow upstream from the upstream flow further downstream.
The setting of described second one-way valve 8 further strengthens safety factor of the present invention.In other words, (probability of happening is very little even back fire flame has been broken through the obstruction of each road barrier (one-way valve 5, the first back-fire flame damper 5 and first one-way valve 7) of front, only have probability of happening in theory), it also will be blocked at described second one-way valve 8 places.
Fig. 4 is the schematic representation according to the combustible gas pressure container with multistage backfire fire-proof device of the 3rd exemplary embodiment of the present invention.
As shown in Figure 4, except all of the combustible gas pressure container with multistage backfire fire-proof device according to second exemplary embodiment of the present invention illustrated in fig. 3 are provided with, can also be provided with one second back-fire flame damper 9 in the inflammable gas pipeline in the tank body 1 of described combustible gas pressure container, this second back-fire flame damper 9 can be identical with the form of the described first back-fire flame damper 6.
The setting of the described second back-fire flame damper 9 further strengthens safety factor of the present invention, theoretical risk factor is reduced to approaches zero.In other words, (actual probability of happening should be zero even back fire flame has been broken through the obstruction of each road barrier (one-way valve 5, the first back-fire flame damper 5, first one-way valve 7 and second one-way valve 8) of front, its probability of happening also is almost equal to zero in theory), it also will be blocked at described second one-way valve 8 places.
Described inflammable gas is preferably the mixed gas of hydrogen and oxygen, in other words, of the present invention in the quick-fried problem that contracts of tempering that solves the hydrogen and oxygen mixture pressurized container effect particularly remarkable.
What those skilled in the art can learn easily is, reduces greatly as its safety installations even gets rid of its explosion potential thereby the present invention also can be used for the pressurized container of inflammable gass such as acetylene, rock gas, liquefied petroleum gas (LPG).
The cracking pressure scope of described first and second one-way valves can be 0.00035MPa to 0.035MPa.Those skilled in the art can determine the numerical value of cracking pressure according to concrete service condition.
As mentioned above, the use of the combustible gas pressure container with multistage backfire fire-proof device provided by the invention is with highly stable reliable, and it is best that its Safety performance has reached.
Though above-mentionedly in conjunction with an exemplary embodiment theory of the present invention has been carried out illustration, it will be appreciated by persons skilled in the art that illustrated structure only is to realize the preferred exemplary of purpose of the present invention in embodiment.Those skilled in the art can make the modification or the variation of various equivalences in the scope of connotation of the present invention.These modifications and variations ought to fall into the scope that the present invention should protect.
Claims (7)
1. combustible gas pressure container with backfire fire-proof device, described combustible gas pressure container has tank body, this tank body is provided with air inlet pipeline that links to each other with the source of the gas of upstream and the supply air line that links to each other with the burner in downstream, in described supply air line with the contiguous position of described tank body on, be provided with the first back-fire flame damper, it is characterized in that:
The position contiguous with described tank body in described supply air line also is provided with one first one-way valve, and the direction of described first one-way valve is arranged to allow surrounding atmosphere to enter the inside of the tank body of described combustible gas pressure container by described first one-way valve.
2. the combustible gas pressure container with backfire fire-proof device as claimed in claim 1, it is characterized in that: also be provided with one second one-way valve in the inflammable gas pipeline in the tank body of described combustible gas pressure container, the direction setting of this second one-way valve becomes only to allow inflammable gas not allow inflammable gas from the downstream flow upstream from the upstream flow further downstream.
3. the combustible gas pressure container with backfire fire-proof device as claimed in claim 1 or 2 is characterized in that: also be provided with one second back-fire flame damper in the inflammable gas pipeline in the tank body of described combustible gas pressure container.
4. combustible gas pressure container as claimed in claim 1 is characterized in that: described inflammable gas is a kind of in the following option: the mixed gas of acetylene, rock gas, liquefied petroleum gas (LPG), hydrogen and oxygen.
5. combustible gas pressure container as claimed in claim 1 is characterized in that: described inflammable gas is the mixed gas of hydrogen and oxygen.
6. as each the described combustible gas pressure container in claim 1 or 2 or 4 or 5, it is characterized in that: the cracking pressure scope of described one-way valve is 0.00035MPa to 0.035MPa.
7. combustible gas pressure container as claimed in claim 3 is characterized in that: the cracking pressure scope of described one-way valve is 0.00035MPa to 0.035MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610156586A CN100587313C (en) | 2006-12-28 | 2006-12-28 | Combustible gas pressure container with multistage backfire fire-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610156586A CN100587313C (en) | 2006-12-28 | 2006-12-28 | Combustible gas pressure container with multistage backfire fire-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101210648A CN101210648A (en) | 2008-07-02 |
| CN100587313C true CN100587313C (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610156586A Expired - Fee Related CN100587313C (en) | 2006-12-28 | 2006-12-28 | Combustible gas pressure container with multistage backfire fire-proof device |
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| CN (1) | CN100587313C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900358B (en) * | 2010-09-05 | 2011-12-21 | 无锡市盛力达机械工程有限公司 | Anti-backfire lowest pressure by-pass control device of gas furnace |
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- 2006-12-28 CN CN200610156586A patent/CN100587313C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101210648A (en) | 2008-07-02 |
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Granted publication date: 20100203 Termination date: 20121228 |