CN102639938B

CN102639938B - Flame hole unit structure of a gas burner

Info

Publication number: CN102639938B
Application number: CN201080054074.3A
Authority: CN
Inventors: 闵泰植
Original assignee: Kyungdong Navien Co Ltd
Current assignee: Kyungdong Navien Co Ltd
Priority date: 2009-12-11
Filing date: 2010-11-11
Publication date: 2014-09-10
Anticipated expiration: 2030-11-11
Also published as: WO2011071248A3; AU2010328929A1; US20120244483A1; CN102639938A; EA201290484A1; JP2013508672A; EP2511608A2; KR20110066372A; WO2011071248A2; CA2780834A1; AU2010328929B2; KR101216815B1

Abstract

The present invention relates to a flame hole unit structure of a gas burner for simplifying, easily assembling, and manufacturing a structure of a burner flame hole unit by overlapping a plurality of plates of which portions are cut so that the cut portions may be intersected with each other, and by forming flame holes and mixture channels of gas and air through a gap between the cut portions. To realize said purpose, the flame hole unit structure of the gas burner of the present invention has a plurality of flame holes in which a mixture of gas and air is sprayed to form a flame, and the plurality of plates of which the portions are cut are overlapped together, wherein the cut portions are intersected and overlapped with each other between the adjacent plates, thereby forming the flame holes and the mixture channels of gas and air through the gap between the cut portions.

Description

The flame hole portion structure of gas burner

Technical field

The present invention relates to a kind of flame hole portion structure of gas burner, relate more specifically to the flame hole portion structure of following gas burner: the multiple plates that cut by an overlapping part intersect the part of cutting between plate mutually, form air mixture stream and the flame hole of combustion gas and air by the gap of the part of cutting, thereby simplify the structure of burner flame hole portion, can easily assemble and make.

Background technology

The gas burner that is generally used for the combustion apparatus such as boiler or water heater can be divided into this life (Bunsen) burner and premixed (Pre-mixed) burner according to the mode of mixed combustion combustion gas and air.

Bunsen burner is the minimal primary air required in the spray nozzle part supply burning of spraying combustion gas burner from completing combustion to the position excess supply auxiliary air that forms flame that realize, there is combustion stability excellence, but because being forms flame by auxiliary air, thereby there is the shortcoming that the length of flame is long.

Premix burner is the mode of the premixed gas of the burning burning that is pre-mixed in mixing chamber gas and air, in reducing the whole length of flame, reduce the temperature of flame, can reduce the load for same area, thereby there is the generation that can reduce to Min. the harmful substance such as carbon monoxide and nitrogen oxide.

The main bunsen burner that uses in the past, but recently in order to reduce the generation of public hazards material and to make combustion chamber miniaturization and mainly use premix burner.

Fig. 1 is the stereogram that shows an example of the flame hole portion structure of existing gas burner.

The gas burner 1 of pre existing hybrid mode is made up of following structure: the air of supplying with from air blast 30 and burning combustion gas premixed the manifold 50 of front face that is arranged at burner body 20 of supplying with by gas supply pipe 40, and be supplied to the burner flame hole portion 10 that is arranged at burner body 20 upsides.

Existing burner flame hole portion 10 has used in the structure that is configured to the flame hole of holing out on dull and stereotyped or a columnar sheet material, but such structure exists burner combustion facial disfigurement that thermal stress causes or the damage of flame hole and the problem of bringing out imperfect combustion and back-fire when serious.

In order to make up this shortcoming, use the burner flame hole portion structure using metallic fiber pad or ceramic wafer etc. as material, described metallic fiber pad is formed by metallic fiber braiding, and described ceramic wafer is formed by ceramic post sintering.

But, this flame hole portion structure that has used metallic fiber pad or ceramic wafer needs a large amount of fee of materials, improve because preparation method trouble makes manufacturing cost, due to the increase of the complex structure build-up of pressure loss of premixer, thereby have flame instability or produce the problem of noise.

And, the described metallic fiber pad that adopts the method for braiding to make is used as in the situation of flame hole portion material, burner when assembling operator need to pull metallic fiber pad and assemble, therefore metallic fiber pad local or all likely can imperfect combustion or back-fire occur because of the disunity of flame hole size, and flexibility in the material characteristic of metallic fiber pad can cause after arranging the problem that exists combustion front and flame hole to be out of shape unevenly because of sagging etc.

And, the ceramic wafer that adopts the method for described sintering to make is used as in the situation of flame hole portion material, the condensed water producing in heat exchanger while upwards burning is fallen in the situation of combustion front, flame hole portion surface because of water impaired, produce the skimble-scamble flame of shape hole, there is the problem that unburnt possibility occurs.

Summary of the invention

(1) technical problem that will solve

Proposed the present invention in order to address the above problem, object is to provide a kind of flame hole portion structure of gas burner, when burner flame hole portion is improved into simple structure by it, makes easily.

(2) technical scheme

Be used for the flame hole portion structure of the gas burner of the present invention of realizing above-mentioned purpose, there is multiple flames hole, the air mixture that combustion gas and air are sprayed in described flame hole forms flame, it is characterized in that, overlapping the forming of multiple plates of being cut by a part, the part juxtaposition cutting between adjacent panels, forms air mixture stream and the described flame hole of combustion gas and air by the gap of described cut-away portions.

Wherein, described multiple plate can form by multiple plates taking cover as unit are overlapping, describedly formed by interior plate and outside as the plate of unit taking cover, described interior plate has the concave part of the part incision of top or bottom, described outer panel is overlapped in the two sides of described interior plate, and have bottom or top a part cut concave part, make this concave part intersect corresponding with the concave part being formed on described interior plate.

And, can be configured to: described have a fixed head so that cover is also extra overlapping as the two sides of unit, and described multiple flame spans are arranged.

And described flame hole can be configured to: its cross section has flat rectangular shape.

(3) beneficial effect

According to the flame hole portion structure of gas burner of the present invention, multiple plates that an overlapping part is cut and form burner flame hole portion, in the structure of having simplified burner flame hole portion, make to make to become being easy to simultaneously, have to reduce and make required time of gas burner and the effect of expense.

And, according to the present invention, by being configured to by dredging the mobile path of air mixture and the structure in flame hole between the overlapping gap of plate, can reduce the deformation extent in the flame hole being caused by thermal stress, thereby there is the stability that improves flame, prevent unburnt effect.

Brief description of the drawings

Fig. 1 is the stereogram that shows an example of the flame hole portion structure of existing gas burner;

Fig. 2 is the stereogram of the flame hole portion structure of gas burner of the present invention;

Fig. 3 is the decomposed stereogram of Fig. 2;

Fig. 4 is the A-A line baseline cross-section figure of Fig. 2;

Fig. 5 is the B-B line baseline cross-section figure of Fig. 2;

Fig. 6 is the C-C line baseline cross-section figure of Fig. 2;

Fig. 7 is the D-D line baseline cross-section figure of Fig. 2;

Fig. 8 is the E-E line baseline cross-section figure of Fig. 2.

The description of symbols of the major part to accompanying drawing

1: gas burner 10,100: burner flame hole portion

111a, 121a, 122a: concave part 20: burner body

30: air blast 40: manifold

110,111,112,113: interior plate

120,121,122,123,124,125,126: outer panel

130,131,132,133,134: fixed head

140,141,142,143,144,145,146: air mixture inflow entrance

150,151,152,153: inner space

160,161,162,163: flame hole

Detailed description of the invention

Below, with reference to accompanying drawing, the structure to the preferred embodiment of the present invention and effect are described in detail.

Fig. 2 is the stereogram of the flame hole portion structure of gas burner of the present invention, Fig. 3 is the decomposed stereogram of Fig. 2, Fig. 4 is the A-A line baseline cross-section figure of Fig. 2, Fig. 5 is the B-B line baseline cross-section figure of Fig. 2, Fig. 6 is the C-C line baseline cross-section figure of Fig. 2, Fig. 7 is the D-D line baseline cross-section figure of Fig. 2, the E-E line baseline cross-section figure that Fig. 8 is Fig. 2.

The flame hole portion 100 of gas burner of the present invention, is characterized in that, is made up of the structure of the overlapping assembling of multiple thin plates, and the inner side of overlapping plate is formed with the path that the air mixture of combustion gas and air is moved, and described path is dredged the flame hole to upside.

Reference is as Fig. 2 and Fig. 3, and the burner flame hole portion 100 of one embodiment of the invention comprises: interior plate 110,111,112,113, and multiple concave part 111a that a top part is cut form with predetermined distance; Outer panel 120,121,122,123,124,125,126, multiple concave part 121a, 122a that a bottom part is cut form with predetermined distance, make it symmetrical up and down with the concave part 111a that is formed at described interior plate 110, the overlapping two sides that are incorporated into described interior plate 110.

As shown in the figure, upside or the open lower side of described concave part 111a, 121a, 122a is also cut into approximately " Contraband word " shape, under interior plate 110 and the overlapping state of outer panel 120, the concave part 111a that is formed at interior plate 110 dredges with the part interval of the concave part 121a, the 122a that are formed at outer panel 120, forms the stream of air mixture.

On the other hand, as shown in Figure 3, described interior plate 111 forms a plate taking cover as unit with the outer panel 121,122 that is overlapped in its two sides, and such plate taking cover as unit is overlapping and with multistage repeated configuration.

And, described taking cover overlapping fixed head 130,131,132,133,134 that is combined with inner filling between the plate of unit.

Described fixed head 130, except playing the effect of the stream that forms air mixture, in the situation that its thickness is different, plays the effect at the interval that forms 160,161,162,163, flame hole simultaneously.

Below, with reference to Fig. 5, the formation of the stream that air mixture is moved in burner flame hole portion 100 inside is described.

Between fixed head 130 and interior plate 110, by concave part 121a, the 122a interval of outer panel 120, be formed with air mixture inflow entrance 140,141,142,143,144,145,146 at the downside of burner flame hole portion 100.

The air mixture that flow into described mist inflow entrance 140 is transferred to upside, each auto polymerization in the inner space 151,152,153 forming by the concave part 111a of interior plate 110 and the concave part 121a of outer panel 120,122a interval between fixed head 130.

And the air mixture of polymerization moves to upside in described inner space 151,152,153, the flame hole 160,161,162,163 forming by the concave part 111a interval by interior plate 110 between outer panel 120 is injected into upside.

By such structure, the air mixture that flow into two air mixture inflow entrances 141,142 is sprayed by a flame hole 161, the sectional area in described flame hole 161 is structures narrower than the sectional area of described inner space 151, therefore can be with high velocity jet air mixture by described flame hole 161.

On the other hand, in the present embodiment, to being formed on the upper side opening of the concave part 111a on interior plate 110 and being formed on the concave part 121a on outer panel 120, the example of the open lower side of 122a illustrates and illustrates, but in contrast, be formed on the concave part 111a and the concave part 121a that is formed on outer panel 120 of described interior plate 110, 122a can change direction mutually to be configured to the structure of difference downside and upper side opening, according to such formation, thereby there is the air mixture that flow into an air mixture inflow entrance to the structure of Liang Geyan hole branch injection.

In Fig. 6, undeclared mark 141a to 146c shows the air mixture inflow entrance forming to side direction, in Fig. 7, undeclared mark 151a to 153c shows the inner space forming to side direction, and in Fig. 8, undeclared mark 161a to 163c shows the flame hole portion forming to side direction.

Thus, according to the flame hole portion structure of gas burner of the present invention, owing to having, multiple plates are overlapped, and it is inner forms the path of air mixture and dredges to the structure in upside flame hole, therefore can minimize the distortion in the flame hole that thermal stress causes.

And, although the formation of the present embodiment is by three overlapping formation of plate taking cover as unit, consider the maximum output of gas burner, the overlapping quantity that can change to overlap the plate that is unit forms.

Claims

1. the flame hole portion structure of a gas burner, it is characterized in that, there is multiple flames hole, the air mixture that combustion gas and air are sprayed in described flame hole forms flame, overlapping the forming of multiple plates of being cut by a part, the part juxtaposition cutting between adjacent panels, form air mixture stream and the described flame hole of combustion gas and air by the gap of described cut-away portions, multiple taking cover as the plate of unit overlapping, the described two sides taking cover as the plate of unit are also extra overlapping a fixed head, and described multiple flame spans are arranged.

2. the flame hole portion structure of gas burner as claimed in claim 1, it is characterized in that, describedly formed by interior plate and outer panel as the plate of unit taking cover, described interior plate has the concave part of the part incision of top or bottom, described outer panel is overlapped in the two sides of described interior plate, and have bottom or top a part cut concave part, make this concave part intersect corresponding with the concave part being formed on described interior plate.

3. the flame hole portion structure of the gas burner as described in any one in claim 1～2, is characterized in that, the cross section in described flame hole has flat rectangular shape.