The utility model belongs to the technical field of micro-channel reaction equipment, and particularly discloses a micro-channel reactor which comprises a cooling
water pipe, a feeding
pipe, a plurality of U-shaped pipes and a discharging
pipe, the cooling
water pipe is communicated with a plurality of water feeding pipes, each water feeding
pipe is communicated with two water feeding
branch pipes, the plurality of U-shaped pipes are sequentially communicated in an S shape, and the discharging pipe is communicated with the U-shaped pipes. Each water feeding
branch pipe is communicated with the connecting position of the corresponding U-shaped pipe, each U-shaped pipe is composed of a jacketed pipe and an inner pipe, the jacketed pipes are connected to the inner pipes in a sleeved mode, the feeding pipe, the discharging pipe and the U-shaped pipes are all communicated with water return pipes, each water return pipe is provided with a water return
thermometer and a water return valve, and the connecting position of each U-shaped pipe is provided with a water feeding
thermometer. The micro-channel reactor can effectively improve the reaction uniformity, stabilize the pressure and improve the production safety, the design of the jacketed pipe can effectively reduce heat loss and maintain the
heat balance of a
reaction system, cooling water enters the multiple
branch pipes synchronously, and the stability of the temperature and the pressure of the inner pipe can be maintained.