Fuel machine backpressure protection device

The invention discloses a fuel machine backpressure protection device. The fuel machine backpressure protection device comprises a variable diameter flue and a booster fan. The variable diameter flue is connected with a flue gas inlet of a flue gas condensing heat exchanger and a chimney which is co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIA XIANGDONG, XIE ZHENGHE, ZHOU JUNQIAO, ZHAO YAN, ZHOU CONG, SUI XIAOFENG
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a fuel machine backpressure protection device. The fuel machine backpressure protection device comprises a variable diameter flue and a booster fan. The variable diameter flue is connected with a flue gas inlet of a flue gas condensing heat exchanger and a chimney which is connected with a waste heat boiler. The booster fan is arranged inside the variable diameter flue, and the diameter of the variable diameter flue contracts gradually in the direction from the chimney to the booster fan. By means of the mode, due to the fact that the variable diameter flue of the gradual contraction structure is adopted, the pressure at the flue gas inlet of the flue gas condensing heat exchanger is increased by means of the booster fan, the influence caused by increasing of flue gas resistance is overcome, and a more stable flue gas flow field is formed.