Fuel distribution device and a burner

A fuel distribution device (9) for a burner, comprising:

• an inlet end (9a) comprising a disc-like annular cover (19) having n inlet openings each configured to receive a high pressure fuel;
• an outlet end (9b) comprising an annular support plate (11) in the form of a planar disc having n groups of fuel distribution openings from which the high pressure fuel is jetted, each of the groups including m fuel distribution openings respectively, wherein the m fuel distribution openings in the same group are distributed evenly along a circumference of the annular support plate (11) and the n groups of fuel distribution openings are arranged along the circumference of the annular support plate;
• a cylindrical inner wall, a cylindrical outer wall, and a distribution channel (9c) defined by the annular cover (19), the annular support plate (11), the inner wall and the outer wall and forming an annular cavity;
• n fuel feeding tubes (5) through which the high pressure fuel is jetted, the n fuel feeding tubes extending from the n inlet openings, respectively, of the annular cover (19) into the annular cavity of the distribution channel (9c), wherein each of the n fuel feeding tubes (5) is divided into m feeding branch pipes (8) extending within the annular cavity of the distribution channel (9c) from the fuel feeding tubes (5) to the annular support plate (11), and wherein the m feeding branch pipes (8) extending from the same fuel feeding tube (5) are in communication with the respective m fuel distribution openings in the same group respectively, and wherein m, n are positive integers greater than or equal to 2;
• and
• a fuel dividing mechanism (6) arranged between each of the n fuel feeding tubes (5) and the respective m feeding branch pipes (8), the fuel dividing mechanism comprising a multi-nozzle that
• divides the high pressure fuel received at the n inlet openings among the m feeding branch pipes through which the high pressure fuel is jetted;
• wherein the feeding branch pipes (8) are configured to be coiled spirally about the inner wall and thus the feeding branch pipes (8) are configured to be tangentially inclinedly connected to the respective fuel distribution openings of the annular support plate (11) with respect to the annular support plate (11) such that high pressure fuel is jetted from the respective fuel distribution openings with a tangential velocity.

A burner comprising:

• an igniter (1);
• an oxidant channel (12);
• and
• a fuel distribution device (9), wherein the oxidant channel (12) and the fuel distribution device (9) are coaxially and outwardly arranged about the igniter (1) in a manner of sequence, and wherein the fuel distribution device (9) comprises:
• an inlet end (9a) comprising a disc-like annular cover (19) having n inlet openings each configured to receive a high pressure fuel,
• an outlet end (9b) comprising an annular support plate (11) in the form of a planar disc having n groups of fuel distribution openings from which the high pressure fuel is jetted, each of the groups including m fuel distribution openings respectively, wherein the m fuel distribution openings in the same group are distributed evenly along a circumference of the annular support plate (11) and the n groups of fuel distribution openings are arranged along the circumference of the annular support plate,
• a cylindrical inner wall, a cylindrical outer wall, and a distribution channel (9c) defined by the annular cover (19), the annular support plate (11), the inner wall and the outer wall and forming an annular cavity,
• n fuel feeding tubes (5) through which the high pressure fuel is jetted, the n fuel feeding tubes extending from the n inlet openings, respectively, of the annular cover (19) into the annular cavity of the distribution channel (9c), wherein each of the n fuel feeding tubes (5) is divided into m feeding branch pipes (8) extending within the annular cavity of the distribution channel (9c) from the fuel feeding tubes (5) to the annular support plate (11), and wherein the m feeding branch pipes (8) extending from the same fuel feeding tubes (5) are in communication with the respective m fuel distribution openings in the same group respectively, and wherein m, n are positive integers greater than or equal to 2;
• and
• a fuel dividing mechanism (6) arranged between each of the n fuel feeding tubes (5) and the respective m feeding branch pipes (8), the fuel dividing mechanism comprising a multi-nozzle that divides the high pressure fuel received at the n inlet openings among the m feeding branch pipes through which the high pressure fuel is jetted;
• wherein the n inlet openings are distributed evenly along a circumference of the annular cover (19);
• wherein the feeding branch pipes (8) are configured to be coiled spirally about the inner wall and thus the feeding branch pipes (8) are configured to be tangentially inclinedly connected to the respective fuel distribution openings of the annular support plate (11) with respect to the annular support plate (11) such that high pressure fuel is jetted from the respective fuel distribution openings with tangential velocity.