CN-116357964-B - Air inlet assembly, tubular combustor comprising same and gas furnace

Abstract

The invention discloses an air inlet component, a tubular burner and a gas furnace comprising the same, and relates to the technical field of burners, wherein the air inlet component is provided with a concave part, an air inlet hole, an air inlet and an air filtering piece, the air inlet of the air filter is provided with an air mixing cavity, the air filter is arranged between the air inlet and a space formed by extending the air inlet along the air inlet direction, and air entering the air mixing cavity is driven by air entering the air inlet through the air holes. The air flow rate of the air entering the concave part can be reduced by the vent hole with the opening smaller than the air inlet, the air entering from the air inlet is divided into a plurality of smaller airflows, so that the flow rate of the mixed gas is reduced, the mixed gas entering the air filtering piece is mixed in the air mixing cavity after being ejected in the process, the air and the gas are fully collided in the air mixing cavity of the air filtering piece for full mixing, and the gas mixing degree is further improved.

Inventors

• YANG JIE

Assignees

• 宁波方太厨具有限公司

Dates

Publication Date

20260512

Application Date

20230329

Claims (16)

1. 1. An air intake assembly having a recess provided with an air inlet aperture and an air inlet aperture, both of which communicate with the recess, the air intake assembly further comprising: the air filter is provided with an air vent, the opening of the air vent at the air inlet is smaller than the opening of the air inlet, and the air filter is provided with a mixing cavity; The air filtering piece is arranged between the air inlet and a space formed by extension of the air inlet hole along the air inlet direction, so that air inlet of the air inlet hole drives air to enter the air mixing cavity after passing through the air vent; one end of the air filtering piece is contacted with the bottom end of the cavity of the concave part, and the other end of the air filtering piece extends along the direction away from the air inlet hole and is higher than the air inlet; The air inlet assembly further comprises a nozzle, one end of the nozzle is arranged in the air inlet hole, and the other end of the nozzle is located in a range corresponding to the air inlet in the height direction, so that the projection of the other end of the nozzle on the side face of the concave part is located in the air inlet.
2. 2. The air intake assembly of claim 1, wherein the air filter has openings at both ends, the opening in a direction away from the air intake is no greater than the opening near the air intake, the air vent is provided on a side of the air filter, and the side of the air filter extends in a direction away from the air intake and encloses the air mixing chamber.
3. 3. An air intake assembly as claimed in claim 2, wherein the air filter includes an end cap provided at an end remote from the air intake aperture, and the end cap and the side face of the air filter form a cone or cylinder having an opening at one end, and the end of the air filter having the opening is covered on the air intake aperture.
4. 4. The air intake assembly of claim 1, further comprising a flow restrictor, The flow limiting piece is arranged on the outer side of the concave part and can move up and down relative to the air inlet.
5. 5. A tubular burner further comprising a plenum, wherein the tubular burner comprises an air intake assembly according to any one of claims 1-4, the air intake assembly being in communication with the plenum of the tubular burner.
6. 6. The tubular burner of claim 5, wherein the bottom end of the plenum chamber has a first through hole, the recess communicating with the first through hole; One end of the air filtering piece is arranged in the concave part, and the other end of the air filtering piece is contacted with the inner side of the top wall of the air mixing chamber.
7. 7. The tubular burner of claim 5, wherein the plenum chamber has a spoiler disposed therein, the tubular burner further comprising a gas passage, The gas channel is arranged on the outer side face of the gas mixing chamber and is communicated with the gas mixing chamber, the turbulence piece is arranged between the air filtering piece and the gas channel, and the projection of the turbulence piece on the side face of the gas mixing chamber covers the gas channel.
8. 8. The tubular burner of claim 7, wherein the plenum chamber comprises at least two turbulence members, wherein the turbulence members are arc-shaped, the turbulence members are symmetrically arranged relative to the air filter member, and a gap is provided between adjacent turbulence members.
9. 9. The tubular burner of claim 7, wherein one end of the spoiler is connected to the top wall of the plenum chamber and the other end of the spoiler is connected to the bottom wall of the plenum chamber.
10. 10. A tubular burner as in claim 5 wherein the plenum is integrally formed with the recess of the air intake assembly.
11. 11. The tubular burner of claim 7, further comprising a first burner tube and a second burner tube, The second combustion tube is positioned at the outer side of the first combustion tube, the second combustion tube is positioned below the first combustion tube, the first combustion tube is provided with a first fire hole, and the first fire hole is obliquely upwards and faces the outer side of the first combustion tube; And a second fire hole which is inclined upwards is formed in one side of the second combustion tube, which faces the first combustion tube, and the flame at the second fire hole faces the root of the flame at the first fire hole.
12. 12. The tubular burner of claim 11, wherein the first burner tube diameter is smaller than the second burner tube diameter, and the first fire hole diameter is larger than the second fire hole diameter.
13. 13. A tubular burner according to claim 12, wherein the first burner tube and the second burner tube are annular in shape and/or, The distance between the extension line of the center of the second fire hole and the outer side of the first combustion tube is not more than 4mm.
14. 14. The tubular burner of claim 11, wherein the gas passage comprises a first passage and a second passage, the first passage and the second passage being disposed on a common line, the first passage communicating with the first burner tube and the second passage communicating with the second burner tube.
15. 15. The tubular burner of claim 14, further comprising an adapter, wherein the adapter connects between the first burner tube and the first channel and the second burner tube and the second channel.
16. 16. A gas burner comprising a tubular burner as claimed in any one of claims 5 to 15.

Description

Air inlet assembly, tubular combustor comprising same and gas furnace Technical Field The invention relates to the technical field of combustors, in particular to an air inlet assembly, a tubular combustor comprising the same and a gas furnace. Background The burner is widely applied to kitchen equipment, for example, patent number CN212841710U discloses a burner, and the air inlet of this burner is unstable, if meet under outdoor service environment such as strong wind, leads to the flame of burner to waggle unstable, the side-to-side rocking takes place even from the flame, and the unstable gas that still probably leads to the gas mixing of gas is inhomogeneous in addition, does not provide enough space in the gas-cooker gas and carries out good mixing with air in the cooking utensils yet to make the gas unable abundant burning, the internal energy of gas can not fully release. Disclosure of Invention The invention aims to overcome the defects of too fast air inflow and uneven mixing of mixed gas of a burner in the prior art, and provides an air inlet assembly, a tubular burner comprising the air inlet assembly and a gas furnace. The invention solves the technical problems by the following technical scheme: The utility model provides an air inlet subassembly, the subassembly that admits air has depressed part and strain wind spare, the depressed part is provided with inlet port and air inlet, air inlet with the inlet port all communicates the depressed part, strain wind spare is last to be equipped with the air vent, be located air inlet department the opening of air vent is less than air inlet's opening, it is equipped with the air mixing chamber to strain wind spare, it locates to strain wind spare air inlet with the inlet port is along between the space that the extension of inlet direction formed, so that the inlet port admit air drives the air and passes through behind the air vent the air mixing chamber. In the scheme, the air filtering piece is arranged in the concave part of the air inlet component, when fuel gas enters the concave part from the air inlet hole, the air inlet near the air inlet hole is ejected by the air flowing in at a high speed, the air hole with a smaller opening than the air inlet can reduce the flow rate of the air entering the concave part, the air entering from the air inlet is divided into a plurality of smaller airflows, so that the flow rate of mixed gas is reduced, on the other hand, the mixed gas entering the air filtering piece is continuously mixed in the mixed gas cavity after being mixed in the ejecting process, so that the air and the fuel gas are fully collided in the mixed gas cavity of the air filtering piece to be fully mixed, and the fuel gas mixing degree is further improved. Preferably, one end of the air filter is contacted with the bottom end of the cavity of the concave part, and the other end of the air filter extends along the direction away from the air inlet hole and is higher than the air inlet. In this scheme, strain the bottom contact of wind spare and depressed part, be convenient for with straining wind spare and install in the depressed part, strain the side projection of wind spare at the depressed part and cover air inlet, increased and strained wind spare along the length of air inlet direction, can reduce the velocity of flow of air and increase the volume of mixing the air chamber in the greater scope for the mixing of mist is more even. Preferably, openings are formed at two ends of the air filtering piece, the opening in the direction away from the air inlet is not larger than the opening in the position close to the air inlet, the vent holes are formed in the side face of the air filtering piece, and the side face of the air filtering piece extends along the direction away from the air inlet and encloses the air mixing cavity. In the scheme, the opening far away from the air inlet is not larger than the opening close to the air inlet, so that the mixed gas flowing into the air filtering piece collides in the mixed gas cavity for a plurality of times, the mixed gas is prevented from flowing away from the mixed gas cavity of the air filtering piece, and the mixing degree of the mixed gas is increased. Preferably, the air filter comprises an end cover, the end cover is arranged at one end far away from the air inlet hole, the end cover and the side face of the air filter form a cone or a cylinder with an opening at one end, and the air filter is covered on the air inlet hole at one end with the opening. In this scheme, the wind filter sets up the end cover for the mixed gas that gets into in the mixed gas intracavity continues to mix in the mixed gas intracavity after colliding with the inner wall of end cover, has increased the mixed number of times of mixed gas, has improved the mixed degree of mixed gas. Preferably, the air inlet assembly further comprises a flow limiting piece, wherein the flow limiting piece is arranged on the outer s