CN102154035A - Fuel gas and tail gas exhaust device - Google Patents
Fuel gas and tail gas exhaust device Download PDFInfo
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- CN102154035A CN102154035A CN2011100493876A CN201110049387A CN102154035A CN 102154035 A CN102154035 A CN 102154035A CN 2011100493876 A CN2011100493876 A CN 2011100493876A CN 201110049387 A CN201110049387 A CN 201110049387A CN 102154035 A CN102154035 A CN 102154035A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a fuel gas and tail gas exhaust device (10). A first pipe (22) and a second pipe (23), which are connected, are arranged between a cooling tower (3) and a washing tower (5). The fuel gas and tail gas exhaust device is characterized in that: the first pipe (22) is connected with the second pipe (23); the second pipe (23) is connected with the inlet side of a steam ejector (12); a waste heat boiler steam pipe (21) is connected with the end inlet of a steam injector (12); the outlet of the steam ejector (12) is communicated with a first escape pipe (16) and a condensate pipe (15); and the outlet of a water dust scrubber (6) is directly communicated with a coal gas header (24) and a second escape pipe (26). As the steam ejector (12) is arranged on the first pipe (22) arranged between the cooling tower (3) and the washing tower (5), a negative pressure generated by the steam ejector (12) can ensure the normal flow of fuel gas and tail gas in a pipe network and a draft fan (7) is not needed to be arranged below the water dust scrubber (6) and thus, energy consumption is further reduced.
Description
Technical field
The present invention relates to a kind of fuel gas gas emission device, particularly discharging does not meet the fuel gas of production needs or the device of unstripped gas in process of production.
Background technology
In the prior art, vapourizing furnace opens stove in cold conditions, when being system's igniting, intensification, baker, at first carry out decompression operation, former flow operations method is the closure systems pressure spot, connect interim decompression meter or simple and easy " U " shape pipe pressure meter, open induced draft fan,, adjust gasified boiler system pressure to-60 millimeter water column by observing decompression meter or " U " shape pipe pressure meter, displacement gasburner pipe connecting, light gas jet, carry out warming temperature, air throwing coal warming temperature, after coal is lighted fully, close gas valve in stove, stop induced draft fan, system corrects press operation.
As shown in Figure 1, existing fuel gas preparation facilities comprises cooling tower 3, washing tower 5 and the water dust scrubber 6 by the pipe network contact, connects water dust scrubber 6 and transport pipe by induced draft fan 7.The fuel gas of preparation is sent into gas main, perhaps with undesirable fuel gas emptying.And the workflow existing problems of using induced draft fan 7 decompressions are that device is opened complex steps, and induced draft fan 7 need have airtight construction, must meet requirement for dynamic balance during installation, and device will have the good insulation performance.In the vapourizing furnace temperature-rise period, because gaseous tension rises gradually, be maintenance system-60～-90 millimeter water column pressure, induced draft fan 7 terminal valves need be adjusted accordingly.
Summary of the invention
In order to solve problems of the prior art, make full use of waste heat boiler steam, and reduce the energy consumption of equipment, the invention provides a kind of fuel gas gas emission device, between cooling tower and washing tower, be provided with first pipeline that is connected.Described first pipe connection, second pipeline, the side entrance of the described second pipe connection steam injector, the waste heat boiler steam-pipe connects the end inlet of steam injector, the outlet of steam injector is communicated with first exhausting pipeline and condensate pipe, and the outlet of water dust scrubber directly is communicated with the gas main and second exhausting pipeline.
According to fuel gas gas emission device provided by the invention, first valve wherein is set in second pipeline, second valve is set in the waste heat boiler steam-pipe, the 3rd valve is set in first exhausting pipeline, in first pipeline that connects cooling tower and washing tower, be provided with the 4th valve, in the gas main that connects the water dust scrubber outlet, be provided with the 5th valve, in second exhausting pipeline that connects the water dust scrubber outlet, be provided with the 6th valve.
According to another kind of fuel gas gas emission device provided by the invention, wherein the other end of the condensate pipe that is communicated with the outlet of steam injector is communicated with water seal tank.
According to another kind of fuel gas gas emission device provided by the invention, wherein said second valve is a control valve, and described first valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve are gate valves.
In fuel gas gas emission device provided by the invention owing to adopt steam from self waste heat boiler steam pipe system as working medium, and utilize steam injector to produce negative pressure, make the pipe network steam of vapourizing furnace before operation keep the little negative pressure of system, after the normal operation of vapourizing furnace, waste heat boiler absorbs gas heat, and institute's producing steam is incorporated useless pot steam pipe system again into and supplied outward.Use steam injector Adjustment System pressure, operation steps is simple, regulates injector valve aperture, and observes interim decompression meter at any time and can realize that saves energy has further reduced the energy consumption of equipment.
Description of drawings
Fig. 1 is the synoptic diagram of fuel gas gas emission device in the prior art.
Fig. 2 is the synoptic diagram of an embodiment of improved fuel gas gas emission device provided by the invention.
Embodiment
In the embodiment shown in Figure 2, described a kind of fuel gas gas emission device 10 provided by the invention, be provided with first pipeline 22 that is connected between cooling tower 3 and washing tower 5, being provided with the 4th valve 8, the four valves 8 in first pipeline 22 is gate valves.Described first pipeline 22 connects second pipeline 23, and it is gate valves that first valve, 14, the first valves 14 are set in second pipeline 23.One end of described second pipeline 23 connects first pipeline 22, and the other end connects the side entrance of steam injector 12.Waste heat boiler steam-pipe 21 connects the end inlet of steam injector 12, and second valve 13 is set in waste heat boiler steam-pipe 21.Described second valve 13 is control valves, thereby can be by adjusting the size of by-pass valve control 13 opening degrees, and the flow that makes steam from waste heat boiler steam-pipe 21 enter steam injector 12 changes.The outlet of steam injector 12 is communicated with first exhausting pipeline 16, and the 3rd valve 17 is set in first exhausting pipeline 16.The 3rd valve 17 is gate valves.The outlet of steam injector 12 also is communicated with condensate pipe 15.The outlet of water dust scrubber 6 directly is communicated with the gas main 24 and second exhausting pipeline 26.Being provided with the 5th valve 25, the five valves 25 in the gas main 24 that connects water dust scrubber 6 outlets is gate valves.Being provided with the 6th valve 27, the six valves 27 in second exhausting pipeline 26 that connects water dust scrubber 6 outlets is gate valves.
In the embodiment shown in Figure 2, the other end of the condensate pipe 15 that is communicated with the outlet of steam injector 12 is communicated with water seal tank 4.
Adopt fuel gas gas emission device 10 provided by the invention, in the course of the work, owing in discharge equipment 10, be provided with steam injector 12, waste heat boiler steam enters in the steam injector 12 by pipeline 21, the nozzle of vapour stream in injector changes vapor pressure thus and can become kinetic force.Along with vapor pressure descends, its flow velocity is accelerated.Nozzle place in steam injector 12 can reach high flow velocity, forms high vacuum around nozzle.The tail gas of fuel gas is sucked from the inlet of steam injector 12 sides through second pipeline 23 and enters in the steam injector 12.Fuel gas is in steam injector 12 and vapor mixing, and vapor zone the diffusion part that the tail gas of fuel gas enters steam injector 12 together then.Further mix at these two kinds of fluids, carry out energy evolution, steam slows down and the tail gas acceleration.The kinetic energy of mixed stream changes pressure again in steam injector 12, and flow velocity reduces and pressure raises gradually.Outlet pressure gas from steam injector 12 thus, its pressure can be higher than the suction pressure of fuel gas tail gas, thereby the tail gas of fuel gas is extracted out from pipe network system.
Owing on first pipeline 22 that is provided with between cooling tower 3 and the washing tower 5, settled steam injector 12, the negative pressure of its generation is enough to guarantee fuel gas tail gas proper flow in pipe network, no longer induced draft fan 7 need be set in the downstream side of water dust scrubber 6, therefore reduce energy consumption.
The foregoing description only is that fuel gas gas emission device provided by the invention is described, rather than limits, and the scope of protection of present invention and content are documented in claims of the present invention.
Claims (4)
1. a fuel gas gas emission device (10), between cooling tower (3) and washing tower (5), be provided with first pipeline (22) that is connected, it is characterized in that: described first pipeline (22) connects second pipeline (23), described second pipeline (23) connects the side entrance of steam injector (12), waste heat boiler steam-pipe (21) connects the end inlet of steam injector (12), the outlet of steam injector (12) is communicated with first exhausting pipeline (16) and condensate pipe (15), and the outlet of water dust scrubber (6) directly is communicated with gas main (24) and second exhausting pipeline (26).
2. according to the described fuel gas gas emission device of claim 1 (10), it is characterized in that: first valve (14) is set in second pipeline (23), second valve (13) is set in waste heat boiler steam-pipe (21), the 3rd valve (17) is set in first exhausting pipeline (16), in first pipeline (22) that connects cooling tower (3) and washing tower (5), be provided with the 4th valve (8), in the gas main (24) that connects water dust scrubber (6) outlet, be provided with the 5th valve (25), in second exhausting pipeline (26) that connects water dust scrubber (6) outlet, be provided with the 6th valve (27).
3. according to the described fuel gas gas emission device of claim 1 (10), it is characterized in that: the other end of the condensate pipe (15) that is communicated with the outlet of steam injector (12) is communicated with water seal tank (4).
4. according to the described fuel gas gas emission device of claim 1 (10), it is characterized in that: described second valve (13) is a control valve, and described first valve (14), the 3rd valve (17), the 4th valve (8), the 5th valve (25), the 6th valve (27) are gate valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100493876A CN102154035B (en) | 2011-03-01 | 2011-03-01 | Fuel gas and tail gas exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100493876A CN102154035B (en) | 2011-03-01 | 2011-03-01 | Fuel gas and tail gas exhaust device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102154035A true CN102154035A (en) | 2011-08-17 |
| CN102154035B CN102154035B (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100493876A Expired - Fee Related CN102154035B (en) | 2011-03-01 | 2011-03-01 | Fuel gas and tail gas exhaust device |
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| Country | Link |
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| CN (1) | CN102154035B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893762A (en) * | 2015-06-15 | 2015-09-09 | 林兆晟 | Raw gas ash handling system |
| CN106433803A (en) * | 2016-08-11 | 2017-02-22 | 义马煤业综能新能源有限责任公司 | Water-washing dedusting device for exhaust discharged from u-gas gasifier during start-stop period and dedusting process of water-washing dedusting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241618A (en) * | 1999-07-30 | 2000-01-19 | 卢伟干 | Preparation of mixed fuel gas |
| WO2003047725A2 (en) * | 2001-12-05 | 2003-06-12 | Snecma Propulsion Solide | Method and installation for treating flue gas containing hydrocarbons |
| CN101845329A (en) * | 2010-03-19 | 2010-09-29 | 智胜化工股份有限公司 | Method for using waste heat boiler flue gas as pneumatic ash conveying inert gas of flammable and combustible system |
| CN202039039U (en) * | 2011-03-01 | 2011-11-16 | 安徽淮化股份有限公司 | Tail fuel gas exhaust device |
-
2011
- 2011-03-01 CN CN2011100493876A patent/CN102154035B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241618A (en) * | 1999-07-30 | 2000-01-19 | 卢伟干 | Preparation of mixed fuel gas |
| WO2003047725A2 (en) * | 2001-12-05 | 2003-06-12 | Snecma Propulsion Solide | Method and installation for treating flue gas containing hydrocarbons |
| CN101845329A (en) * | 2010-03-19 | 2010-09-29 | 智胜化工股份有限公司 | Method for using waste heat boiler flue gas as pneumatic ash conveying inert gas of flammable and combustible system |
| CN202039039U (en) * | 2011-03-01 | 2011-11-16 | 安徽淮化股份有限公司 | Tail fuel gas exhaust device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893762A (en) * | 2015-06-15 | 2015-09-09 | 林兆晟 | Raw gas ash handling system |
| CN104893762B (en) * | 2015-06-15 | 2017-07-14 | 林兆晟 | Raw gas ash disposal system |
| CN106433803A (en) * | 2016-08-11 | 2017-02-22 | 义马煤业综能新能源有限责任公司 | Water-washing dedusting device for exhaust discharged from u-gas gasifier during start-stop period and dedusting process of water-washing dedusting device |
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| Publication number | Publication date |
|---|---|
| CN102154035B (en) | 2013-04-10 |
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Effective date of registration: 20210414 Address after: 234000 No. 157, Xichang Road, Suzhou, Anhui Patentee after: WANBEI COAL-ELECTRICITY GROUP Co.,Ltd. Address before: 232038 Anhui Huainan Tian Jia An District Quanshan Anhui Huaihua Limited by Share Ltd technology research and Development Center Patentee before: ANHUI HUAIHUA CHEMICAL GROUP Co.,Ltd. |
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Granted publication date: 20130410 Termination date: 20210301 |
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