Burner, burner module comprising same and heating device

A burner, comprising:

• at least one first passage, with a first inlet of each of the first passages fluidly connected to a supply port of a first fluid;
• at least one second passage, with a second inlet of each of the second passages fluidly connected to a supply port of a second fluid;
• and
• a mixing chamber, which is respectively fluidly connected to a first outlet of the first passage and a second outlet of the second passage, wherein the first fluid and the second fluid are mixed in the mixing chamber to form a fluid mixture;
• wherein the mixing chamber has a sectional area
• the burner comprising a nozzle, and at least one through passage fluidly connected to the mixing chamber is formed in the nozzle, wherein the at least one through passage has a sectional area, configured such that that the fluid mixture flows out from the at least one through passage, wherein the sum of the sectional areas of the at least one through passage is smaller than the sectional area of the mixing chamber,
• wherein the at least one first passage is configured to cause the first fluid to produce rotational flow in a first rotation direction;
• and/or the at least one second passage is configured to cause the second fluid to produce rotational flow in a second rotation direction,
• wherein the at least one first passage is a plurality of first passages, and each of the first passages comprises:
• a first part, extending parallel to an axis of the burner from the inlet of the first passage;
• and
• a second part, an outlet of which is located at a different position in the circumferential direction relative to an inlet thereof, so that flows of the first fluid from the plurality of first passages form a rotational flow in the first rotation direction as a whole in the mixing chamber.

A burner, comprising:

• at least one first passage, with a first inlet of each of the first passages fluidly connected to a supply port of a first fluid;
• at least one second passage, with a second inlet of each of the second passages fluidly connected to a supply port of a second fluid;
• and
• a mixing chamber, which is respectively fluidly connected to a first outlet of the first passage and a second outlet of the second passage, wherein the first fluid and the second fluid are mixed in the mixing chamber to form a fluid mixture;
• wherein the mixing chamber has a sectional area
• the burner comprising a nozzle, and at least one through passage fluidly connected to the mixing chamber is formed in the nozzle, wherein the at least one through passage has a sectional area, configured such that that the fluid mixture flows out from the at least one through passage, wherein the sum of the sectional areas of the at least one through passage is smaller than the sectional area of the mixing chamber,
• wherein the at least one first passage is configured to cause the first fluid to produce rotational flow in a first rotation direction;
• and/or the at least one second passage is configured to cause the second fluid to produce rotational flow in a second rotation direction,
• wherein the at least one first passage is a plurality of first passages, and each of the first passages comprises:
• a first part, extending parallel to an axis of the burner from the inlet of the first passage;
• and
• a second part, extending obliquely toward an axis of the burner from the first part to the outlet of the first passage.