Heat exchanger, method of operating a heat exchanger and process water distillation system

A process water distillation system comprising:

• an evaporator;
• a condenser;
• a compressor configured to generate a desired pressure in at least a region of the process water distillation system and to convey steam from the evaporator into the condenser;
• and
• a heat exchanger comprising:
• a first flow path configured to be flown through with a first fluid to be heated;
• a second flow path configured to be flown through with a second fluid to be cooled, the second flow path being in thermal contact with the first flow path at least in sections, and the second flow path being configured to reduce turbulences within a flow of the second fluid, upon being fed into the second flow path and/or upon flowing through the second flow path;
• and
• a suction device configured to suck a fluid component, which separates from the second fluid while the second fluid is fed into the second flow path and/or flows through the second flow path, from a surface of the second fluid in the second flow path,
• wherein, during operation of the process water distillation system, the first fluid to be heated, which flows through the first flow path of the heat exchanger, is process water to be purified and the second fluid to be cooled, which flows through the second flow path of the heat exchanger, is distillate emerging from the condenser.