Case Introduction:
PC-36 production line furnace waste heat recovery project of Pepsi Food (China) Limited ShangHai Branch
Pepsi Food (China) Co., Ltd(Global Name Frito-Lay) is a leisure food company of the U.S. Pepsi group,whose leisure food comes out on top of the food industry in the world.Pepsi Food (China) Co., Ltd produces and sells all kinds of familiar and favorite leisure food in China,including major brands of pleasure natural potato chips,potato chips infinite pleasure,3D stereo crisp and brittle corn more surprising series.
The project is the recovery and utilization of smoke waste heat of heat exchanger furnace in PC-36 production line. Recovery methods: fix a RYRHS-A normal pressure heat pipe waste heat recovery machine out of the furnace chimney,the emission smoke will be reduced from 400 ¡æ to 160 ¡æ.The recycling heat can directly be used to heat edible oil (palm oil) so that the furnace fuel saving rate can be above 11%.
Basic parameters:
Smoke: 400 ¡æ
Fuel consumption: 420 kg / h
Inlet furnace oil temperature: 152 ¡æ; outlet temperature 175 ¡æ,;
Temperature increment: 22 ¡æ
Palm oil flow: 270 tons / hour
Technic parameters of RYRHS type of waste heat recovery machine:
Heat Pipe Material: stainless steel 304
Heat pipe specifications (mm): ¦µ38 ¡Á 3
Fuel: 0 # diesel
Inlet smoke temperature (¡æ): 400
Outlet smoke Temperature (¡æ): about 160
Smoke side resistance (Pa): ¡Û 50
Fluid side resistance (Pa): Excluding
Palm oil flow rate: 0.9 m / sec.
Inlet Oil temperature (¡æ): 152
Outlet oil temperature (¡æ): ¡Ú 154.2
Side fluid pressure (MPa): ¡Û 1.0
Inlet oil Interface (mm): DN200, PN30
Outlet oil interface (mm): DN200, PN30
Smoke inlet interface (mm): 1550 ¡Á 1740 (long * W)
Dimensions (mm): 2340 ¡Á 2150 ¡Á 2200 (long * W * H)
Technic lines:
Bumped Palm oil is heated by waste heat recovery machine before it entrances into the furnace for heating.
Economic benefits:
After the system runs,oil temperature increment is 3 ¡æ after being heated by waste heat recovery machine before it entrances into the furnace, comprehensive energy-saving rate is above 15%, which surpasses far beyond the initial designing specifications.About 2 million RMB is saved annually,with significant economic benefits!
Pictures of the scene:
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