Budweiser Beer (Foshan) Co., Ltd. Fermentation Workshop Blower Retrofit Project

Among the giant fermentation tanks at Budweiser Beer's Foshan plant, a set of 8 bar air compressors that once roared day and night is quietly being phased out. Krupp permanent magnet variable frequency oil-free screw blowers provide precise low-pressure air supply at 80 kPa, ending the decade-long "high pressure reduction" mode, and connect an energy circulation chain with a heat pump waste heat recovery system. This seemingly simple equipment replacement is, in fact, a deep exploration by the global beer giant of the "dual carbon" proposition — as compressed air energy consumption in the fermentation workshop drops by 52%.

The Energy Dilemma of the Fermentation Workshop: Profits Devoured by High-Pressure Air

In the beer fermentation process, the oxygenation of wort and regulation of yeast metabolism require a continuous supply of clean compressed air. Traditional solutions have two major structural wastes. When 0.8 MPa compressed air is reduced to 0.08 MPa, approximately 28%-32% of the energy is converted into non-valuable heat. The fermentation tank cooling process discharges warm water at 25-28°C. Traditional processes require additional steam consumption to heat cleaning water (55-60°C), with annual steam procurement costs exceeding one million yuan.

Krupp Permanent Magnet Variable Frequency Oil-Free Screw Blower's "Dual Carbon" Solution

1. Low-pressure direct supply, precisely matching process requirements

Permanent magnet synchronous motor (IP65 protection) paired with intelligent control achieves 94.5% efficiency under 80kPa operating conditions, automatically adjusting air volume according to the fermentation cycle to avoid "over-aeration" waste during yeast proliferation and stabilization phases.

2. Sterility assurance, food safety-level protection with oil-free technology

TüV Rheinland CLASS 0 oil-free certification, completely eliminating the risk of lubricating oil contamination in fermentation broth.

Say goodbye to the extensive era of "high pressure for low demand," making every pascal of pressure fully utilized. Use systematic thinking to connect process chains and convert waste heat into productivity. The CLASS 0 oil-free standard enables food safety and sustainable development to resonate together.