Removal device in particular for micro-bubbles, volatile compounds and dirt

A removal device for removing gas bubbles and/or dirt particles from a liquid in a liquid conduit system or for removing particles of a heavier or lighter liquid from the liquid in the liquid conduit system, the removal device comprising:

• a housing comprising:
• an entry,
• at least one exit,
• an inner space defined by the housing,
• at least one tube placed within the housing, wherein the at least one tube extends substantially between the entry and the exit, wherein the tube substantially defines an unobstructed main flow channel which allows the main flow to flow substantially unobstructed from the entry to the exit, wherein the tube has a circumferential wall which extends through the housing between the entry and the exit and which separates the main flow channel from at least one quiet zone,
• at least one branch flow passage located near the entry, the branch flow passage allowing fluid communication between the main flow channel and an area outside the tube and within the inner space defined by the housing,
• at least one return flow passage located near the exit, the return flow passage allowing fluid communication between the area outside the tube and the main flow channel, and
• the at least one quiet zone formed within the inner space, wherein—in use—at least one branch flow originating from the at least one branch flow passage enters the at least one quiet zone and flows through the quiet zone and from the at least one quiet zone as a return flow through the at least one return flow passage, wherein the liquid in the at least one quiet zone has a substantially smaller velocity than the liquid in the main flow channel, allowing dirt or particles of a heavier liquid to settle and/or allowing gas bubbles or particles of a lighter liquid to rise in the quiet zone,
• wherein the removal device comprises at least two plates, which are provided within the inner space defined by the housing, wherein the plates define a branch flow trajectory and—in use—guide the branch flow along the branch flow trajectory which comprises the quiet zone,
• wherein the inner space of the housing is divided by the plates in at least:
• a first chamber comprising the area, wherein the branch flow passage provides access from the main flow channel into the first chamber,
• a second chamber comprising the quiet zone, and
• a third chamber comprising the area, wherein the return flow passage provides access from the third chamber into the main flow channel,
• wherein the branch flow trajectory extends through the first, second and third chamber, and wherein at least one first constricted opening is provided between the first chamber and the second chamber, wherein at least one second constricted opening is provided between the second chamber and the third chamber, and
• wherein the first chamber and the at least first constricted opening are configured to distribute the branch flow over a substantial part of a height of the removal device.