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CN-224229994-U - Burner with a burner body

CN224229994UCN 224229994 UCN224229994 UCN 224229994UCN-224229994-U

Abstract

The utility model provides a combustor which comprises a base and a gas mixing chamber, wherein the base is provided with an outer ring channel which is communicated with the outer ring injection pipe, at least part of the outer ring channel is positioned right below the base, the base also comprises a first expansion channel and a second expansion channel, the outer ring channel is communicated with the gas mixing chamber through the first expansion channel and the second expansion channel in sequence, the first expansion channel extends from right below the gas mixing chamber to below the outer side of the gas mixing chamber along a first direction far away from the center of the combustor, the second expansion channel extends from below the outer side of the gas mixing chamber to right below the gas mixing chamber along a second direction close to the center of the combustor, the second direction is tangential to a gas channel in the gas mixing chamber, and the combustor further comprises a flow guiding part which is arranged at the joint of the first expansion channel and the second expansion channel and is used for changing the flow direction of gas flowing along the first direction into the second direction.

Inventors

  • YANG JIE
  • YU YU

Assignees

  • 宁波方太厨具有限公司

Dates

Publication Date
20260512
Application Date
20250515

Claims (10)

  1. 1. The burner comprises a base and a gas mixing chamber, wherein the base is provided with an outer ring channel which is communicated with an outer ring injection pipe, at least part of the outer ring channel is positioned right below the base, the burner is characterized in that the base also comprises a first expansion channel and a second expansion channel, the outer ring channel is communicated with the gas mixing chamber through the first expansion channel and the second expansion channel in sequence, the first expansion channel extends from directly below the gas mixing chamber to below the outer side of the gas mixing chamber in a first direction away from the center of the burner, and the second expansion channel extends from below the outer side of the gas mixing chamber to directly below the gas mixing chamber in a second direction close to the center of the burner, wherein the second direction is tangential to a gas channel in the gas mixing chamber; The burner further comprises a flow guiding part, wherein the flow guiding part is arranged at the joint of the first expansion channel and the second expansion channel, and the flow guiding part is used for changing the flow direction of the fuel gas flowing along the first direction into the flow in the second direction.
  2. 2. The burner of claim 1, wherein the flow guide includes a flow guide surface having an arcuate cross-section, wherein a first end dimension of the flow guide surface in the first direction is greater than a second end dimension of the flow guide surface in the second direction.
  3. 3. The burner of claim 2, wherein the deflector further comprises an impact surface disposed on an end of the outer annular channel remote from the outer annular injection tube, the impact surface having a flat surface and being disposed flush with an inner wall of the gas passageway in the mixing chamber.
  4. 4. The burner of claim 1, wherein one end of the first expansion passage is configured to communicate with the outer annular passage, and wherein the first expansion passage has a size that is the same as the outer annular passage.
  5. 5. The burner of claim 4, wherein the first expansion channel and the second expansion channel are integrally formed and have an L-shaped cross-section.
  6. 6. The burner of claim 5, wherein the first expansion channel further comprises a flow stabilizer extending in the first direction, the flow stabilizer being located in a middle region of the first expansion channel, the flow stabilizer being spaced apart from the flow guide.
  7. 7. The burner of claim 6, wherein the flow stabilizer extends from a lower end of the first expansion channel to an upper end of the first expansion channel.
  8. 8. The burner of claim 1, further comprising a flow dividing portion disposed at an outlet of the outer annular channel for communication with the plenum, the outlet of the outer annular channel having a first end outlet flow rate greater than a second end outlet flow rate, the flow dividing portion disposed proximate the first end of the outlet.
  9. 9. The burner of claim 8, wherein the flow dividing portion includes a flow dividing surface disposed in correspondence with the outlet air outlet direction of the outer annular channel, the flow dividing surface being disposed obliquely toward the second end of the outlet in the height direction of the burner.
  10. 10. The burner of claim 1, wherein the base is provided with a middle ring injection pipe and a middle ring channel communicated with the middle ring injection pipe, an outlet of the middle ring channel is communicated with the gas mixing chamber, an outlet of the middle ring channel is close to the outer edge of the gas mixing chamber, an outlet of the outer ring channel is close to the axis of the gas mixing chamber, the gas mixing chamber comprises a sealing plate, a concave part facing the axis of the burner is arranged on the sealing plate corresponding to the outlet of the middle ring channel, and the concave part is positioned on the side part of the outlet of the outer ring channel.

Description

Burner with a burner body Technical Field The utility model relates to the technical field of combustors, in particular to a combustor. Background The tricyclic burner is favored by users because of its rich fire power configuration to meet different needs of users during cooking. The existing tricyclic burner is provided with three injection pipes which are connected with a base, wherein the diameter of the base part is slightly larger than the maximum distance of the three injection pipes perpendicular to the axis direction of the injection pipes. The diameter of the burner is larger than the maximum distance of the three injection pipes in the vertical direction of the axes. This leads firstly to increased burner costs and secondly to smaller hob cavity spaces and higher internal temperature rises of the hob. In order to ensure reasonable distribution of the space in the kitchen range cavity, namely, the tricyclic burner can be installed in the kitchen range cavity, the diameter of a base corresponding to the injection pipe is reduced under the normal condition, but in actual use, the fact that the burner with the reduced base size has a tricyclic structure is found that a tricyclic gas flow passage is relatively complex in the base with the limited size, the gas outlet resistance is large, and further the gas flow rate of gas outlets on the left side (middle ring and outer ring) and the right side (middle ring and outer ring) is uneven, so that flame is uneven. Disclosure of utility model The utility model aims to overcome the defects of large change of the flow rate of the outlet gas and uneven outlet gas and mixed gas after the miniaturization of a base in the prior art. The utility model solves the technical problems by the following technical scheme: The burner comprises a base and a gas mixing chamber, wherein the base is provided with an outer ring channel which is communicated with the outer ring injection pipe, at least part of the outer ring channel is positioned right below the base, the base further comprises a first expansion channel and a second expansion channel, the outer ring channel is communicated with the gas mixing chamber through the first expansion channel and the second expansion channel in sequence, the first expansion channel extends to the lower outside of the gas mixing chamber from the right below of the gas mixing chamber along a first direction far away from the center of the burner, the second expansion channel extends to the right below of the gas mixing chamber from the lower outside of the gas mixing chamber along a second direction close to the center of the burner, and the second direction is tangential to a gas channel in the gas mixing chamber; The burner further comprises a flow guiding part, wherein the flow guiding part is arranged at the joint of the first expansion channel and the second expansion channel, and the flow guiding part is used for changing the flow direction of the fuel gas flowing along the first direction into the flow in the second direction. In this scheme, through setting up first dilatation passageway and second dilatation passageway to on the basis that does not increase the base width, extend the distance that the gas got into the gas mixing chamber from outer loop passageway, increase gas mixing time, be equivalent to the change looks and increased the diameter of outer loop injection pipe and outer loop passageway junction, compare in reducing the base diameter in order to install to cooking utensils cavity, can avoid because of the base size restriction get into the gas resistance that the gas port of outer loop passageway reduces sharply and lead to greatly, the condition that the gas velocity of flow reduces sharply prevents that the gas velocity of flow gradient from leading to the gas that flows into the gas mixing chamber greatly uneven promptly, and then make the gas can intensive mixing. In addition, through setting up the water conservancy diversion portion to change the gas that flows along first direction into along the second direction flow, with the gas can be premixed when changing the flow direction before getting into the gas mixing chamber, and on the basis that water conservancy diversion portion is less to gas flow resistance, avoid the great velocity of flow difference of gas, make the gas after premixing can get into the gas mixing chamber smoothly and carry out intensive mixing, overcome the condition that the flame height is inconsistent when the combustor burns. Preferably, the flow guiding part comprises a flow guiding surface, and the cross section of the flow guiding surface is of an arc-shaped structure, wherein the size of a first end of the flow guiding surface facing the first direction is larger than that of a second end of the flow guiding surface facing the second direction. In this scheme, through above-mentioned setting for the opening of arc structure is towards the center of combustor, and then realiz