Controllable liquid distributor of a coiled-tube heat exchanger for realizing different liquid loadings

A heat exchanger, comprising:

• a shell surrounding a shell space of the heat exchanger, wherein the shell space is designed to receive a fluid first medium,
• a core tube extending in the shell space,
• a tube bundle having several tubes wound around the core tube, wherein the tube bundle is designed to receive at least one fluid second medium so that heat can be transferred indirectly between the first medium and the at least one second medium,
• a liquid distributor, arranged above the tube bundle in the shell space, for applying to the tube bundle a liquid phase of the first medium, wherein the liquid distributor has distributor arms projecting in the radial direction from the core tube;
• an annular channel extending above the distributor arms in a circumferential direction of the shell, as well as a collector tank formed by the core tube, wherein the annular channel and the collector tank are each designed to collect the first medium,
• wherein
• the distributor arms for applying the liquid phase of the first medium to the tube bundle form at least one first container and at least one second container separate from the first container, wherein the at least one first container is in flow connection with the annular channel so that the liquid phase of the first medium can be introduced from the annular channel into the at least one first container and from there, via outlet openings of the at least one first container, be distributed over a first region of the tube bundle, and wherein the at least one second container is in flow connection with the collector tank so that the liquid phase of the first medium can be introduced from the collector tank into the at least one second container and from there can be distributed over a second region of the tube bundle via outlet openings of the at least one second container.