CN101747966B - Fuel gas cooling dehumidifying process flow - Google Patents
Fuel gas cooling dehumidifying process flow Download PDFInfo
- Publication number
- CN101747966B CN101747966B CN 200810229354 CN200810229354A CN101747966B CN 101747966 B CN101747966 B CN 101747966B CN 200810229354 CN200810229354 CN 200810229354 CN 200810229354 A CN200810229354 A CN 200810229354A CN 101747966 B CN101747966 B CN 101747966B
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- gas cooling
- interchanger
- heat exchanger
- gas
- cooling
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Abstract
The invention relates to a fuel gas cooling dehumidifying process flow, mainly used for cooling dehumidifying process flow of saturated water vapour containing low heating value combustible gases such as gas and methane. The invention aims at providing a fuel gas cooling dehumidifying process flow with good energy saving effect. The invention includes a blower fan or gas compressor, a gas cooling heat exchanger, a backheating heat exchanger, a cooling dehumidifying heat exchanger and a gas-water separator, and the invention is characterized in that the gas cooling heat exchanger, backheating heat exchanger, cooling dehumidifying heat exchanger and the gas-water separator are sequentially connected behind the blower fan or gas compressor in series, and the outlet of the gas-water separatoris connected with the inlet at cold side of the backheating heat exchanger.
Description
Technical field:
The present invention is a kind of low heat value inflammable gas fuel gas cooling dehumidifying process flow that gas, biogas etc. contain saturated steam that is mainly used in.
Background technology:
In combustion gas treatment schemees such as existing gas, biogas, generally adopt the normal pressure dehumidifying that cools, and then supercharging heats, improves the method for fuel gas temperature, reduce combustion gas relative humidity, to satisfy the requirement that the gas requirement of rear end equipment usefulness or combustion gas are carried.The arrangement mode of its equipment is: combustion gas is introduced into dehumidification heat exchange, utilize the cooling of refrigerator refrigeration, combustion gas condensation water outlet, enter air water separator again, separating and condensing water enters booster fan or gas compressor again, is transported to rear end equipment after the supercharging, shortcoming is treatment scheme energy consumption height, and combustion gas dehumidifying cooling is to mix cooling; Another shortcoming be combustion gas after supercharging, density increases, every cubic metre of absolute moisture content of combustion gas increases, and the pressure component of water vapour is only relevant with temperature, cause the saturated humidity temperature spot to raise, in environment or safety temperature scope, coagulate liquid water, thus the infringement rear end equipment.
The treatment scheme that also has adopts the method that cools and dehumidify after the supercharging, the arrangement mode of its equipment is: combustion gas enters booster fan or gas compressor, be introduced into Recuperative heat exchanger after the supercharging, earlier (improve the temperature of the cold combustion gas after dehumidifying separates with cold combustion gas heat exchange after dehumidifying separates, relative humidity is fallen), enter the gas cooling interchanger again, after utilizing the environment low-temperature receiver to the combustion gas cooling, enter dehumidification heat exchange again, utilize the cooling of refrigerator refrigeration, combustion gas condensation water outlet enters air water separator again, separating and condensing water is transported to rear end equipment again.Shortcoming is high-temperature fuel gas heat exchange after cold combustion gas and the supercharging, and cryogenic energy utilization is bad, the high-temperature fuel gas of cooling and the heat exchange of environment low-temperature receiver, and heat exchange efficiency reduces, and overall energy consumption is higher.
Summary of the invention:
The fuel gas cooling dehumidifying process flow that the purpose of this invention is to provide a kind of good energy-conserving effect.
For realizing above-mentioned purpose of the present invention, the present invention adopts following technical scheme, the present invention includes booster fan or gas compressor, gas cooling interchanger, Recuperative heat exchanger, cooling and dehumidifying interchanger, air water separator, its characteristics are to be connected in series gas cooling interchanger, Recuperative heat exchanger, cooling and dehumidifying interchanger, air water separator successively behind booster fan or the gas compressor, and the air water separator outlet is serially connected with the cold side import of Recuperative heat exchanger.
Beneficial effect of the present invention:
Flow process of the present invention adds Recuperative heat exchanger between gas cooling interchanger and cooling and dehumidifying interchanger, can utilize the cold of the low temperature combustion gas of coming out from air water separator, with the combustion gas of coming out from the gas cooling interchanger, utilize the Recuperative heat exchanger heat exchange, further cooling combustion gas, and make the combustion gas condensation go out a part of water of condensation, and saved the needed refrigerating duty of a part of cooling and dehumidifying heat exchange, reach purpose of energy saving.
Description of drawings:
Fig. 1 is schema of the present invention;
Fig. 2 is the schema that the present invention increases accurate filter;
Fig. 3 is the schema of one embodiment of the present of invention;
Fig. 4 is the schema of an alternative embodiment of the invention;
Fig. 5 is a kind of local structure synoptic diagram of gas cooling interchanger of the present invention;
Fig. 6 is the another kind of local structure synoptic diagram of gas cooling interchanger of the present invention.
The 1st, combustion gas comes air pipe, the 2nd, booster fan or gas compressor, the 3rd, accurate filter, the 4th, the gas cooling interchanger, the 41st, the environment low-temperature receiver of gas cooling interchanger, the 5th, Recuperative heat exchanger, the 6th, cooling and dehumidifying interchanger, the 61st, the refrigeration heat sink of cooling and dehumidifying interchanger, the 7th, air water separator, the 8th, flow process inner connection tube road, the 81st, treatment scheme pipeline, the 82nd, the come out connecting tube of air inlet body cooling heat exchanger 4 of Recuperative heat exchanger 5, the 83rd, pipeline branch road, the 9th, switch valve, the 42nd, the heat pipe condensation end of low-temperature receiver part, the 43rd, the third channel of gas cooling interchanger, the 44th, the heat pipe evaporation ends of interchanger.
Embodiment:
The present invention includes booster fan or gas compressor, gas cooling interchanger, Recuperative heat exchanger, cooling and dehumidifying interchanger, air water separator, be connected in series gas cooling interchanger, Recuperative heat exchanger, cooling and dehumidifying interchanger, air water separator behind booster fan or the gas compressor successively, the air water separator outlet is serially connected with the cold side import of Recuperative heat exchanger.
The gas cooling interchanger is the triple channel interchanger, and the cold side outlet serial connection that exports the Recuperative heat exchanger of the cold side import that is serially connected with Recuperative heat exchanger from air water separator enters gas cooling interchanger third channel.
Air water separator can be that cyclonic separator, fog dispersal device, cyclonic separator add fog dispersal device or condensation water filter; Remove liquid water as much as possible.
Be serially connected with accurate filter between booster fan or gas compressor and the gas cooling heat exchanger; Be used for filtering solid impurity, the interchanger of protection rear end reduces fouling.
The environment low-temperature receiver of gas cooling interchanger can be air source or water source or source, ground or compound low-temperature receiver; Purpose is to obtain alap cheap low-temperature receiver, reduces high-order energy consumption.
The gas cooling interchanger is separate type heat pipe exchanger, and the low-temperature receiver heat exchanging part can be separated with the gas cooling heat exchanging part; The cooling and dehumidifying interchanger is separate type heat pipe exchanger, and the low-temperature receiver heat exchanging part can be separated with the gas cooling heat exchanging part that dehumidifies; Thereby reduce floor space, simplify cold circulation link, reduce noise, increase reliability.
Before the cold side outlet serial connection from Recuperative heat exchanger enters gas cooling interchanger third channel the pipeline branch road is set, the pipeline branch road is in parallel with the gas cooling interchanger, and is provided with switch valve.
Come the combustion gas of air pipe 1 to enter gas cooling interchanger 4 behind booster fan or gas compressor 2 cools off by 41 heat exchange of environment low-temperature receiver from combustion gas, condensation goes out liquid water, the water shoot that the pleasant body cooling heat exchanger of liquid water 4 bottoms arrange is discharged, Recuperative heat exchanger 5 is arrived in combustion gas again, arrive cooling and dehumidifying interchanger 6 through Recuperative heat exchanger 5, condensation goes out liquid water after refrigeration heat sink 61 heat exchange cooling, liquid water is discharged along the water shoot that cooling and dehumidifying interchanger 6 bottoms arrange, at this moment also contain vaporific small droplets in the combustion gas, air water separator 7 is arrived in combustion gas more then, separate the small droplets in the combustion gas, the water shoot that water after the separation arranges through air water separator 7 bottoms is discharged, at this moment containing seldom, the combustion gas of liquid water is low temperature, the cold side import of Recuperative heat exchanger 5 is arrived in the combustion gas of low temperature again, be used for feeding the 6 preceding combustion gas of cooling and dehumidifying interchanger and lower the temperature, reclaim cold.
The combustion gas that the temperature of coming out from Recuperative heat exchanger 5 raises taps into into gas cooling interchanger 4 third channels by pipeline 82 again, further gives the combustion gas cooling through gas cooling interchanger 4, further reclaims cold.
Claims (5)
1. fuel gas cooling dehumidifying process flow, comprise booster fan or gas compressor, gas cooling interchanger, Recuperative heat exchanger, cooling and dehumidifying interchanger, air water separator, it is characterized in that being connected in series gas cooling interchanger, Recuperative heat exchanger, cooling and dehumidifying interchanger, air water separator successively behind booster fan or the gas compressor, the air water separator outlet is serially connected with the cold side import of Recuperative heat exchanger;
The gas cooling interchanger is the triple channel interchanger, and the cold side outlet serial connection that exports the Recuperative heat exchanger of the cold side import that is serially connected with Recuperative heat exchanger from air water separator enters gas cooling interchanger third channel;
Before the cold side outlet serial connection from Recuperative heat exchanger enters gas cooling interchanger third channel the pipeline branch road is set, the pipeline branch road is in parallel with the gas cooling interchanger, and is provided with switch valve.
2. a kind of fuel gas cooling dehumidifying process flow according to claim 1 is characterized in that air water separator is that cyclonic separator, fog dispersal device, cyclonic separator add fog dispersal device or condensation water filter.
3. a kind of fuel gas cooling dehumidifying process flow according to claim 1 is characterized in that being serially connected with accurate filter between booster fan or gas compressor and the gas cooling heat exchanger.
4. a kind of fuel gas cooling dehumidifying process flow according to claim 1, the environment low-temperature receiver that it is characterized in that the gas cooling interchanger are air source or water source or source, ground or compound low-temperature receiver.
5. a kind of fuel gas cooling dehumidifying process flow according to claim 1 is characterized in that the gas cooling interchanger is separate type heat pipe exchanger, and the low-temperature receiver heat exchanging part can be separated with the gas cooling heat exchanging part; The cooling and dehumidifying interchanger is separate type heat pipe exchanger, and the low-temperature receiver heat exchanging part can be separated with the gas cooling heat exchanging part that dehumidifies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810229354 CN101747966B (en) | 2008-12-05 | 2008-12-05 | Fuel gas cooling dehumidifying process flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810229354 CN101747966B (en) | 2008-12-05 | 2008-12-05 | Fuel gas cooling dehumidifying process flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101747966A CN101747966A (en) | 2010-06-23 |
| CN101747966B true CN101747966B (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810229354 Expired - Fee Related CN101747966B (en) | 2008-12-05 | 2008-12-05 | Fuel gas cooling dehumidifying process flow |
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| CN (1) | CN101747966B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074135A (en) * | 2012-12-27 | 2013-05-01 | 南京碳环生物质能源有限公司 | Low-concentration methane gas dewatering method and complete equipment |
| CN103527346A (en) * | 2013-09-15 | 2014-01-22 | 贵州盘江煤层气开发利用有限责任公司 | Device for improving power generation efficiency through gas generator high-temperature flue gas refrigerating |
| CN104912696B (en) * | 2015-05-25 | 2017-10-17 | 北京扬德环境科技股份有限公司 | A kind of gas electricity unit blending LNG fuel apparatus and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537270A (en) * | 1967-09-07 | 1970-11-03 | Chevron Res | Natural gas dehydration |
| CN2497857Y (en) * | 2001-09-03 | 2002-07-03 | 吕应中 | Unitary gas dewaterer |
| CN2898037Y (en) * | 2006-04-21 | 2007-05-09 | 中国石油天然气股份有限公司 | Natural gas dehumidifying device |
| CN201061750Y (en) * | 2007-07-16 | 2008-05-21 | 臧琛瑶 | Freezing type drier |
-
2008
- 2008-12-05 CN CN 200810229354 patent/CN101747966B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537270A (en) * | 1967-09-07 | 1970-11-03 | Chevron Res | Natural gas dehydration |
| CN2497857Y (en) * | 2001-09-03 | 2002-07-03 | 吕应中 | Unitary gas dewaterer |
| CN2898037Y (en) * | 2006-04-21 | 2007-05-09 | 中国石油天然气股份有限公司 | Natural gas dehumidifying device |
| CN201061750Y (en) * | 2007-07-16 | 2008-05-21 | 臧琛瑶 | Freezing type drier |
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| Publication number | Publication date |
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| CN101747966A (en) | 2010-06-23 |
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Granted publication date: 20130925 Termination date: 20181205 |
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