CN104841074A - Fire extinguishing equipment for first-grade drying of SCR (Selective Catalytic Reduction) denitration catalyst - Google Patents
Fire extinguishing equipment for first-grade drying of SCR (Selective Catalytic Reduction) denitration catalyst Download PDFInfo
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- CN104841074A CN104841074A CN201510294388.5A CN201510294388A CN104841074A CN 104841074 A CN104841074 A CN 104841074A CN 201510294388 A CN201510294388 A CN 201510294388A CN 104841074 A CN104841074 A CN 104841074A
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- hothouse
- control valve
- storage tank
- nitrogen
- scr denitration
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides fire extinguishing equipment for first-grade drying of an SCR denitration catalyst. When the SCR denitration catalyst encounters is on fire during the first-grade drying process, indoor oxygen content and temperature are quickly reduced by enabling nitrogen gas to enter the drying chamber and without opening a gate of the drying chamber, so that the fire is immediately extinguished; the fire extinguishing equipment has high fire-extinguishing efficiency and low cost and loss caused by the ignition of the catalyst is effectively reduced; the fire extinguishing equipment is characterized by comprising a nitrogen gas steel cylinder group; a pressure-reducing cylinder manifold is connected to the nitrogen gas steel cylinder group and is connected to a nitrogen gas storage tank through a control valve; the nitrogen gas storage tank is connected with the drying chamber through the control valve.
Description
Technical field
The invention belongs to the technical field of coal generating, be specifically related to a kind of for the dry extinguishing device of SCR denitration one-level.
Background technology
Selective catalytic reduction (SCR) in numerous Denitration Technology in Coal Burning Plants, be apply now at most, the most ripe effective a kind of gas denitrifying technology.SCR denitration is primarily of oxide carrier and active component composition.Cellular catalyst is the denitrating catalyst of a kind of carrier and active component global formation.Catalyst, after extrusion molding, needs the portion of water sloughed through one-level drying in catalyst prod, then through secondary drying, finally carries out sintering processes.
In one-level drying system at home, partial temperature control inaccuracy in the dry run of the 8 to 10 day in hothouse, cause hothouse inner catalyst can the spontaneous combustion because local temperature is too high, even can cause the whole hothouse generation condition of a fire as put out a fire not in time, causing greater loss.Under normal circumstances, when running into catalyst spontaneous combustion, the fire extinguishing of hothouse gate pull-out catalyst can be opened.But this has very large shortcoming, when opening hothouse gate, large quantity of air enters and catalyst can be impelled to burn further, and catalyst is in easily poisoning, inefficacy after dry-chemical fire extinguishing.
Summary of the invention
In order to solve the problem, the invention provides a kind of for the dry extinguishing device of SCR denitration one-level, when SCR denitration is caught fire as catalyst when one-level is dry, enter by nitrogen under the state without the need to opening hothouse gate and reduce indoor oxygen content and temperature rapidly, the condition of a fire is contained in time, have fire-fighting efficiency high, with low cost, catalyst can be significantly reduced to catch fire the loss caused.
Its technical scheme is such: a kind of for the dry extinguishing device of SCR denitration one-level, it is characterized in that: it comprises nitrogen cylinder group, decompression bus-bar connects described nitrogen cylinder group, described decompression bus-bar connects nitrogen storage tank by control valve, and described nitrogen storage tank connects hothouse by control valve.
It is further characterized in that: described decompression bus-bar connects multiple nitrogen storage tank respectively by control valve, and described nitrogen storage tank is communicated with inlet manifold respectively by control valve, and described hothouse connects described inlet manifold; Described nitrogen storage tank connects multiple hothouse respectively by control valve; Multiple described hothouse connects described inlet manifold respectively by control valve; In described hothouse, both sides are provided with nitrogen outlet pipe, and described nitrogen storage tank connects described nitrogen outlet pipe by control valve; The described nitrogen outlet pipe of both sides is connected by tube connector, and in described hothouse, corresponding described communicating pipe is provided with anticollision device, collision-prevention device; Described anticollision device, collision-prevention device is support frame structure, and support frame as described above height is greater than spacing inside described tube connector and described hothouse; Described nitrogen outlet pipe is arranged at intervals with multiple venthole; Described nitrogen outlet pipe is provided with the circular venthole of 3mm at interval of 20cm.
In said structure of the present invention, because decompression bus-bar connects nitrogen storage tank by control valve, nitrogen storage tank connects hothouse by control valve, nitrogen directly passes in hothouse, when SCR denitration is caught fire as catalyst when one-level is dry, enter by nitrogen under the state without the need to opening hothouse gate and reduce indoor oxygen content and temperature rapidly, the condition of a fire is contained in time, have fire-fighting efficiency high, with low cost, catalyst can be significantly reduced to catch fire the loss caused.
accompanying drawing explanation:
Fig. 1 is that the present invention is for the dry extinguishing device structural representation of SCR denitration one-level;
Fig. 2 is anticollision device, collision-prevention device structural representation;
Fig. 3 is nitrogen outlet pipe enlarged diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described:
See Fig. 1, Fig. 2, Fig. 3,
Embodiment one:
A kind of for the dry extinguishing device of SCR denitration one-level, it comprises nitrogen cylinder group 1, decompression bus-bar 2 connects nitrogen cylinder group 1, decompression bus-bar 2 connects nitrogen storage tank 4 by control valve 3, nitrogen storage tank 4 connects hothouse 5 by control valve 3, in hothouse 5, both sides are provided with nitrogen outlet pipe 6, the nitrogen outlet pipe 6 of both sides was connected by communicating pipe 7, in hothouse 5, corresponding tube connector 7 is provided with anticollision device, collision-prevention device 8, effectively prevent the dry dolly on track 11 from bumping against nitrogen outlet pipe 6, anticollision device, collision-prevention device 8 is support frame structure, support frame structure height is greater than spacing inside tube connector 7 and described hothouse 5, nitrogen outlet pipe 6 is provided with the circular venthole 9 of 3mm at interval of 20cm.
Embodiment two:
A kind of for the dry extinguishing device of SCR denitration one-level, it comprises nitrogen cylinder group 1, decompression bus-bar 2 connects two nitrogen storage tanks 4 respectively by control valve 3, two nitrogen storage tanks 4 are communicated with inlet manifold 10 respectively by control valve 3, hothouse 5 connects inlet manifold 10, in hothouse 5, both sides are provided with nitrogen outlet pipe 6, the nitrogen outlet pipe 6 of both sides was connected by communicating pipe 7, in hothouse 5, corresponding tube connector 7 is provided with anticollision device, collision-prevention device 8, effectively prevent the dry dolly on track 11 from bumping against nitrogen outlet pipe 6, anticollision device, collision-prevention device 8 is support frame structure, support frame structure height is greater than spacing inside tube connector 7 and described hothouse 5, nitrogen outlet pipe 6 is provided with the circular venthole 9 of 3mm at interval of 20cm, two nitrogen storage tanks are provided with in the present embodiment, all nitrogen is full of at two nitrogen storage tanks at ordinary times, as the condition of a fire appears in hothouse, one of them nitrogen storage tank can be opened put out a fire, and another nitrogen storage tank is as nitrogen storage tank for subsequent use.
Embodiment three:
A kind of for the dry extinguishing device of SCR denitration one-level, it comprises nitrogen cylinder group 1, decompression bus-bar 2 connects nitrogen cylinder group 1, decompression bus-bar 2 connects nitrogen storage tank 4 by control valve 3, nitrogen storage tank 4 branch connects multiple hothouse 5 by control valve 3, multiple hothouse 5 connects nitrogen storage tank 4 respectively by control valve, in hothouse 5, both sides are provided with nitrogen outlet pipe 6, the nitrogen outlet pipe 6 of both sides was connected by communicating pipe 7, in hothouse 5, corresponding tube connector 7 is provided with anticollision device, collision-prevention device 8, effectively prevent the dry dolly on track 11 from bumping against nitrogen outlet pipe 6, anticollision device, collision-prevention device 8 is support frame structure, support frame structure height is greater than spacing inside tube connector 7 and described hothouse 5, nitrogen outlet pipe 6 is provided with the circular venthole 9 of 3mm at interval of 20cm, can realize in the present embodiment while multiple hothouse or put out a fire respectively.
Embodiment four:
A kind of for the dry extinguishing device of SCR denitration one-level, it comprises nitrogen cylinder group 1, decompression bus-bar 2 connects nitrogen cylinder group 1, decompression bus-bar 2 connects two nitrogen storage tanks 4 respectively by control valve 3, two nitrogen storage tanks 4 are communicated with inlet manifold 10 respectively by control valve 3, multiple hothouse 5 is respectively by control valve inlet manifold 10, in hothouse 5, both sides are provided with nitrogen outlet pipe 6, the nitrogen outlet pipe 6 of both sides was connected by communicating pipe 7, in hothouse 5, corresponding tube connector 7 is provided with anticollision device, collision-prevention device 8, effectively prevent the dry dolly on track 11 from bumping against nitrogen outlet pipe 6, anticollision device, collision-prevention device 8 is support frame structure, support frame structure height is greater than spacing inside tube connector 7 and described hothouse 5, nitrogen outlet pipe 6 is provided with the circular venthole 9 of 3mm at interval of 20cm, in the present embodiment, two nitrogen storage tanks connect inlet manifold by control valve, multiple hothouse is respectively by control valve inlet manifold, two nitrogen storage tanks realize being communicated with separately or jointly by inlet manifold with multiple hothouse, can realize putting out a fire separately to a hothouse, also can put out a fire to multiple hothouse simultaneously simultaneously, a nitrogen storage tank supplying nitrogen can be adopted to put out a fire, nitrogen storage tank is as nitrogen storage tank for subsequent use in addition, when nitrogen requirement is larger, also can adopt simultaneously two nitrogen storage tanks simultaneously supplying nitrogen put out a fire, improve the adaptability of fire extinguishing, ensure that the stability of fire extinguishing simultaneously.
In above-described embodiment, it is improve the distribution of nitrogen in hothouse that both sides arrange nitrogen outlet pipe, improves the uniformity of nitrogen distribution, further increases the extinguishing effect of hothouse.
In above-described embodiment two and embodiment four, employing be two nitrogen storage tanks, can certainly adopt the nitrogen storage tank of other quantity, as long as can realize the input nitrogen extinguishing of nitrogen storage tank to hothouse, be all protection scope of the present invention.
Claims (9)
1. one kind for the dry extinguishing device of SCR denitration one-level, it is characterized in that: it comprises nitrogen cylinder group, decompression bus-bar connects described nitrogen cylinder group, and described decompression bus-bar connects nitrogen storage tank by control valve, and described nitrogen storage tank connects hothouse by control valve.
2. one according to claim 1 is used for the dry extinguishing device of SCR denitration one-level, it is characterized in that: described decompression bus-bar connects multiple nitrogen storage tank respectively by control valve, described nitrogen storage tank is communicated with inlet manifold respectively by control valve, and described hothouse connects described inlet manifold.
3. one according to claim 1 is used for the dry extinguishing device of SCR denitration one-level, it is characterized in that: described nitrogen storage tank connects multiple hothouse respectively by control valve.
4. one according to claim 2 is used for the dry extinguishing device of SCR denitration one-level, and it is characterized in that: described nitrogen storage tank connects multiple hothouse respectively by control valve, multiple described hothouse connects described inlet manifold respectively by control valve.
5. be used for the dry extinguishing device of SCR denitration one-level according to the arbitrary described one of claim 1-4, it is characterized in that: in described hothouse, both sides are provided with nitrogen outlet pipe, described nitrogen storage tank connects described nitrogen outlet pipe by control valve.
6. one according to claim 5 is used for the dry extinguishing device of SCR denitration one-level, and it is characterized in that: the described nitrogen outlet pipe of both sides is connected by tube connector, in described hothouse, corresponding described communicating pipe is provided with anticollision device, collision-prevention device.
7. one according to claim 6 is used for the dry extinguishing device of SCR denitration one-level, and it is characterized in that: described anticollision device, collision-prevention device is support frame structure, support frame as described above height is greater than spacing inside described tube connector and described hothouse.
8. one according to claim 5 is used for the dry extinguishing device of SCR denitration one-level, it is characterized in that: described nitrogen outlet pipe is arranged at intervals with multiple venthole.
9. one according to claim 8 is used for the dry extinguishing device of SCR denitration one-level, it is characterized in that: described nitrogen outlet pipe is provided with the circular venthole of 3mm at interval of 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294388.5A CN104841074B (en) | 2015-06-02 | 2015-06-02 | One kind is used for SCR denitration one-level and dries extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294388.5A CN104841074B (en) | 2015-06-02 | 2015-06-02 | One kind is used for SCR denitration one-level and dries extinguishing device |
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| Publication Number | Publication Date |
|---|---|
| CN104841074A true CN104841074A (en) | 2015-08-19 |
| CN104841074B CN104841074B (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510294388.5A Expired - Fee Related CN104841074B (en) | 2015-06-02 | 2015-06-02 | One kind is used for SCR denitration one-level and dries extinguishing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201543145U (en) * | 2009-12-09 | 2010-08-11 | 保定天威集团有限公司 | Automatic fire extinguishing device for generator room |
| CN202740672U (en) * | 2012-06-06 | 2013-02-20 | 中国石油天然气集团公司 | Nitrogen fire extinguishing system |
| CN203090914U (en) * | 2013-02-04 | 2013-07-31 | 厦门艾贝森电子有限公司 | Production device with nitrogen gas protection device |
| CN203139469U (en) * | 2013-04-10 | 2013-08-21 | 广东胜捷工业安全技术有限公司 | Intelligent nitrogen-injection fire extinguishing system |
| CN203139455U (en) * | 2013-04-10 | 2013-08-21 | 广东胜捷工业安全技术有限公司 | Intelligent remote large-space nitrogen-injection fire prevention system |
| CN204723631U (en) * | 2015-06-02 | 2015-10-28 | 无锡华光新动力环保科技股份有限公司 | For the dry extinguishing device of SCR denitration one-level |
-
2015
- 2015-06-02 CN CN201510294388.5A patent/CN104841074B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201543145U (en) * | 2009-12-09 | 2010-08-11 | 保定天威集团有限公司 | Automatic fire extinguishing device for generator room |
| CN202740672U (en) * | 2012-06-06 | 2013-02-20 | 中国石油天然气集团公司 | Nitrogen fire extinguishing system |
| CN203090914U (en) * | 2013-02-04 | 2013-07-31 | 厦门艾贝森电子有限公司 | Production device with nitrogen gas protection device |
| CN203139469U (en) * | 2013-04-10 | 2013-08-21 | 广东胜捷工业安全技术有限公司 | Intelligent nitrogen-injection fire extinguishing system |
| CN203139455U (en) * | 2013-04-10 | 2013-08-21 | 广东胜捷工业安全技术有限公司 | Intelligent remote large-space nitrogen-injection fire prevention system |
| CN204723631U (en) * | 2015-06-02 | 2015-10-28 | 无锡华光新动力环保科技股份有限公司 | For the dry extinguishing device of SCR denitration one-level |
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| CN104841074B (en) | 2018-04-10 |
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Granted publication date: 20180410 |