CN200961878Y - Ignition device of forced wind-supply gas burner - Google Patents
Ignition device of forced wind-supply gas burner Download PDFInfo
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- CN200961878Y CN200961878Y CN 200620060483 CN200620060483U CN200961878Y CN 200961878 Y CN200961878 Y CN 200961878Y CN 200620060483 CN200620060483 CN 200620060483 CN 200620060483 U CN200620060483 U CN 200620060483U CN 200961878 Y CN200961878 Y CN 200961878Y
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- ignition device
- hole
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- fuel gas
- ignition
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Abstract
The utility model discloses an ignition device for a forced wind-supply gas burner. The ignition device is an automatic firing ignition device which is completely independent on the main combustion chamber of the forced wind-supply gas burner, and the behavior of the ignition device is not influenced by the change of the air quantity of the main combustion chamber or in the way of trickling by combustion foreign material of water too, therefore, the casing of the combustion chamber is provided with the automatic firing ignition device, the casing bottom board of the casing is also arranged with an air admission opening and a leak-off hole, the casing of the combustion chamber is piercingly connected with the inside wall of the main combustion chamber through an ignition rectifier. The utility model is substantially used for independent ignition of the main combustion chamber of the forced wind-supply gas burner.
Description
Technical field
The utility model relates to the gas burner technical field, the ignition device that particularly a kind of pressure uses for the wind gas burner.
Background technology
In gas burner, when its combustion power is big, often needs to adopt and force to give the wind method to carry out forced burning, and good automatic igniting ignition device and subsidiary safety shutdown protective device must be arranged.Gas burner especially for commercial stove and accessory, its power often reaches tens of kilowatts, combustion power density is big, and starting is frequent, and the combustion power excursion of main fire is big, the air quantity that is the combustion chamber changes also quite greatly, because this combustion chamber is positioned at burner hearth central authorities, more than 200mm, and the main burner that ignites must be a naked light apart from the burner hearth periphery, add and also might be subjected to relatively large water sprinkle from top to down on it, therefore the ignition device to automatic igniting requires very high.
In the prior art, what the automatic igniting ignition device of said burner adopted is the non-mode that works alone, the combustion chamber or the part that are ignition device are exposed in the main burner, even or it is relatively independent of outside the main burner, but the supply of its air also can be adopted the working method synchronous with main burner.The sense flame device of its induction flame still is contained in main burner or the burner hearth, therefore ignition difficulties or flame-out easily phenomenon can appear, in the course of the work, automatic igniter just can be opened main internal heat valve after requiring ignition device must produce reliable pilot flame in the course of the work, as feel the flame device then main internal heat valve that lost efficacy and can't strike sparks, the oxide that will produce because of burner or the sprinkle of water cause inefficacy like this.In band automatic safe flame-out protection device, if ignition device lost efficacy, main burner lost efficacy too.
Summary of the invention
The ignition device that provides a kind of pressure to use to the wind gas burner is provided the purpose of this utility model, this ignition device is a kind of automatic igniting ignition device of force giving the work of wind gas burner main chamber that is totally independent of, and the operating mode of this ignition device can not be affected because of the change of main burner air quantity or burned foreign material or water sprinkle yet.
The technical solution that the utility model proposes is such: the ignition device that a kind of pressure uses for the wind gas burner, the main chamber 12 that comprises burner, be provided with airtight combustor outer casing 5, in this shell 5 automatic igniter is housed, on the shell base plate 5-1 of shell 5, also be provided with air inlet hole 3 and discharge orifice 4, combustor outer casing 5 tops are provided with pilot flame outlet 5-2, and this pilot flame outlet 5-2 connects with main chamber 12 madial walls by ignitron 6 and is connected.
Described automatic igniter comprises igniting pin 11, mix air cavity 9, nozzle 10 and flame-sensing needle 2, described mixed air cavity 9 hypomeres are provided with at least two air inlet hole 9-1 and tightly are enclosed within on the nozzle 10, its epimere is provided with fire hole 8, this fire hole 8 outlets one side is provided with ignition strip 7, described nozzle 10 afterbodys pass shell base plate 5-1 becomes fuel gas inlet 1, be respectively equipped with igniting pin 11 and flame-sensing needle 2 in mixed air cavity 9 peripheries, be located at pairing fire hole 8 tops respectively and stay spacing, flame-sensing needle 2 syringe needles to be positioned at igniting pin 11 syringe needles top mutually over against igniting pin 11 syringe needles of ignition strip 7 and the syringe needle of flame-sensing needle 2.Be provided with the secondary fuel gas hole 10-1 that is parallel to fire hole 8 axis on mixed air cavity 9 walls of fire hole 8 one sides of automatic igniter, this secondary fuel gas hole 10-1 connects fuel gas inlet 1 and shell 5 inner chambers.Be provided with pilot flame outlet 5-2 at combustor outer casing 5 corresponding fire holes 8 places.Igniting pin 11 bottoms pass and are fixed on the shell base plate 5-1.Flame-sensing needle 2 bottoms pass and are fixed on the shell base plate 5-1.Ignition strip 7 is located at fire hole 8 outlets one side.Flame-sensing needle 2 syringe needles are positioned at igniting pin 11 syringe needles top.Described ignitron 6 can be at least one section a straight tube, also can make bend pipe.Described ignitron 6 can flexibly connect by screw thread with combustor outer casing 5.Require discharge orifice 4 ventilation sectional areas less than air inlet hole 3 ventilation sectional areas.The cross-sectional area of described nozzle 10 and secondary fuel gas hole 10-1 is than between 1: 2 to 1: 10.When ignitron 6 length during less than 100mm, the internal diameter of secondary fuel gas hole 10-1 is 0.
Work as ignitron 6 more in short-term during work, combustion gas enters through nozzle 10 from fuel gas inlet 1 and mixes air cavity 9, the compressed air that enters from air inlet hole 3 in the combustor outer casing 5 enters mixed air cavity 9 and combustion gas mixing by a plurality of air admission hole 9-1, then through fire hole 8 ejections, parallel igniting pin 11 syringe needles that stretch into airtight combustor outer casing 5 with fuel gas inlet 1 send from the high-voltage pulse current of igniter input facing to the ignition strip 7 that is located at fire hole 8 one sides and produce set of pulses spark, light from the air mixture of fire hole 8 ejections, after being positioned at flame current that flame-sensing needle 2 syringe needles in fire hole 8 dead aheads produce sensing flame temperature and feeding back to control circuit, igniter stops burnt gas valve that to export high-voltage pulse current and open main burner 12 automatically, this moment, the pilot flame of fire hole 8 ejections entered main chamber 12 through ignitron 6, the air mixture in the quick igniting main chamber 12.The effect of discharge orifice 4 is when the water that sprinkle is arranged from main chamber 12 tops is in ignitron 6 inflow combustor outer casings 5, can drain from this discharge orifice 4 in time, and the sectional area of discharge orifice 4 must be less than the sectional area in air inlet hole 3.
When ignitron 6 is longer, during for example greater than 100mm, the fire of above-mentioned Bunsen burner combustion system is shorter, and can't be at the side generation naked light of ignitron 6 over against main chamber 12, as strengthening igniting power, ignition device ignition difficulties and combustion chamber 5 and the too high phenomenon of ignitron 6 temperature will appear.After fire hole 8 was lighted, igniting simultaneously formed the diffusion type burning by the combustion gas of secondary fuel gas hole 10-1 ejection, and this flame is long enough both, and the sidewall of ignitron 6 and combustion chamber 5 has air insulated again, and its temperature can be below 600 ℃.
Compared with prior art, the utlity model has following beneficial effect:
Owing to adopted independently the combustion chamber and discharge orifice 4 is housed in force giving the wind gas burner, its working condition can not be subjected to the air pressure variations of main chamber and by the influence of the water of its top sprinkle.When ignition device is installed in main chamber 12 outsides, ignitron 6 adopts straight tube and horizontal direction to be a little tilt angled down and directly insert main chamber 12 outside burner hearth, and ignition device also can stretch into main chamber 12 by the ignitron 6 of drawing a bow and finish the process of igniting.
As seen, the utility model is not influenced by the main chamber operating mode, can make main burner working stability, reliable, and the installation between this ignition device and the main burner simultaneously is also quite flexible.
For easy to loading and unloading, ignitron 6 also can be divided into dismountable multistage.Particularly when the distance of igniting is longer, having adopted the Bunsen burner combustion system to add diffusion type forces to the wind combustion system, just can light main fire effectively with less power, the control part of adding firing device has improved its functional reliability widely outside burner hearth.
Description of drawings
Fig. 1 is the structural representation that the ignition device that the wind gas burner uses is given in a kind of pressure of the utility model.
The specific embodiment
By following embodiment the utility model is further elaborated.
Referring to shown in Figure 1, present embodiment is the ignition device that is used on the commercial parch stove (forcing to give the wind gas burner), it is provided with airtight combustor outer casing 5, in this shell 5 automatic igniter is housed, the automatic igniter that present embodiment adopted comprises igniting pin 11, mix air cavity 9, nozzle 10 and flame-sensing needle 2, being provided with three air inlet hole 9-1 at mixed air cavity 9 hypomeres also tightly is enclosed within on the nozzle 10, the epimere that mixes air cavity 9 is provided with fire hole 8, this fire hole 8 outlets one side is provided with ignition strip 7, mixed air cavity 9 walls that are positioned at fire hole 8 one sides are provided with a secondary fuel gas hole 10-1 who is parallel to fire hole 8 axis, and this secondary fuel gas hole 10-1 connects fuel gas inlet 1 and shell 5 inner chambers.Secondary fuel gas hole 10-1 communicates with air inlet 1 through mixed air cavity 9, nozzle 10 1 sides.When using liquefied petroleum gas, the internal diameter of nozzle 10 is 0.3mm, and the internal diameter of secondary fuel gas hole 10-1 is 0.55mm.Nozzle 10 afterbodys pass shell base plate 5-1 becomes fuel gas inlet 1, be respectively equipped with igniting pin 11 and the flame-sensing needle 2 that is parallel to each other in mixed air cavity 9 peripheries, be located at pairing fire hole 8 tops respectively and stay spacing mutually over against igniting pin 11 syringe needles of ignition strip 7 and the syringe needle of flame-sensing needle 2, also be provided with air inlet hole 3 and discharge orifice 4 on the shell base plate 5-1, be provided with pilot flame outlet 5-2 at combustor outer casing 5 corresponding fire holes 8 places, this pilot flame outlet 5-2 passes burner hearth by ignitron 6 and is connected with the perforation of main chamber 12 madial walls.In the present embodiment, it is that Φ 18mm, length are the stainless steel straight tube of 250mm that ignitron 6 adopts diameter, be about 3 ° of angles that have a down dip with horizontal direction and stretch into main chamber 12 sidewalls and adopt refractory material to fix, the other end is threaded with the circular base of drawing and forming from the combustor outer casing 5 than its slightly larger in diameter.
Because ignitron 6 adopts detachable structure, ignition device can separate with main chamber 12 at any time, thereby mounting or dismounting are convenient.Though ignitron 6 has been downward-sloping installation, pour in and when still having water to flow into ignitron 6, discharge orifice 4 is just drained water immediately from main chamber 12 as a large amount of water.The internal diameter of present embodiment air inlet 3 is Φ 6mm, and the internal diameter of discharge orifice 4 is Φ 2.5mm, and so just having guaranteed can earial drainage, also has enough air to enter combustor outer casing 5 and make the smooth combustion of this ignition device during earial drainage.
During work, combustion gas enters through nozzle 10 ejections from fuel gas inlet 1, after mixing air cavity 9 and air mixed once, flow out by fire hole 8, igniting pin 11 syringe needles are emitted high-voltage pulse current and are produced the pulse spark ignition strip 7, the mist that flows out from fire hole 8 is lighted, and igniting forms the diffusion type burning from the combustion gas of secondary fuel gas hole 10-1 ejection again, because the flame of fire hole 8 has enough temperature, even thereby the gas flow rate of secondary fuel gas hole 10-1 is very high, also can guarantee sustained combustion.Afterwards, flame after flame-sensing needle 2 is sensed the ion stream of flame, through control circuit control, makes igniting pin 11 stop the air valve that sends high-voltage pulse current and open main chamber 12 through ignitron 6 ejections, and main chamber 12 is lighted.
Because this ignition device is combustion system independently, thereby be not subjected to the interior blast of main burner 12 or the influence of other changing factors.
Claims (10)
1, the ignition device that the wind gas burner is used is given in a kind of pressure, the main chamber (12) that comprises burner, it is characterized in that: be provided with airtight combustor outer casing (5), this shell is equipped with automatic igniter in (5), also be provided with air inlet hole (3) and discharge orifice (4) on the shell base plate (5-1) of described shell (5), described combustor outer casing (5) top is provided with pilot flame outlet (5-2), and this pilot flame outlet (5-2) connects with main chamber (12) madial wall by ignitron (6) and is connected.
2, ignition device according to claim 1, it is characterized in that: described automatic igniter comprises igniting pin (11), mix air cavity (9), nozzle (10) and flame-sensing needle (2), described mixed air cavity (9) hypomere is provided with at least two air inlet holes (9-1) and tightly is enclosed within on the nozzle (10), its epimere is provided with fire hole (8), this fire hole (8) outlet one side is provided with ignition strip (7), described nozzle (10) afterbody passes shell base plate (5-1) becomes fuel gas inlet (1), be respectively equipped with igniting pin (11) and flame-sensing needle (2) in mixed air cavity (9) periphery, be located at pairing fire hole (8) top respectively and stay spacing, described flame-sensing needle (2) syringe needle to be positioned at igniting pin (11) syringe needle top mutually over against igniting pin (11) syringe needle of ignition strip (7) and the syringe needle of flame-sensing needle (2).
3, ignition device according to claim 2, it is characterized in that: mix on air cavity (9) wall being provided with the secondary fuel gas hole (10-1) that is parallel to fire hole (8) axis in fire hole (8) one sides of automatic igniter, this secondary fuel gas hole (10-1) connects fuel gas inlet (1) and shell (5) inner chamber.
4, ignition device according to claim 1 and 2 is characterized in that: it is corresponding that described fire hole (8) and described pilot flame export (5-2).
5, ignition device according to claim 2 is characterized in that: described igniting pin (11) bottom passes and is fixed on the shell base plate (5-1); Described flame-sensing needle (2) bottom passes and is fixed on the shell base plate (5-1).
6, ignition device according to claim 1 is characterized in that: described ignitron (6) is at least one section straight tube or a bend pipe.
7, ignition device according to claim 1 is characterized in that: described ignitron (6) one ends and combustor outer casing (5) are for being threaded.
8, ignition device according to claim 1 is characterized in that: described discharge orifice (4) ventilation sectional area is less than air inlet hole (3) ventilation sectional area.
9, ignition device according to claim 3 is characterized in that: the cross-sectional area of described nozzle (1 0) and secondary fuel gas hole (10-1) is than between 1: 2 to 1: 10.
10, ignition device according to claim 3 is characterized in that: when ignitron (6) length during less than 100mm, the internal diameter of secondary fuel gas hole (10-1) is 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060483 CN200961878Y (en) | 2006-06-15 | 2006-06-15 | Ignition device of forced wind-supply gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060483 CN200961878Y (en) | 2006-06-15 | 2006-06-15 | Ignition device of forced wind-supply gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961878Y true CN200961878Y (en) | 2007-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620060483 Expired - Fee Related CN200961878Y (en) | 2006-06-15 | 2006-06-15 | Ignition device of forced wind-supply gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961878Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242956A (en) * | 2019-04-25 | 2019-09-17 | 深圳市人人节能设备有限公司 | Safe pilot ignition system, gas-fired equipment and method of igniting |
-
2006
- 2006-06-15 CN CN 200620060483 patent/CN200961878Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242956A (en) * | 2019-04-25 | 2019-09-17 | 深圳市人人节能设备有限公司 | Safe pilot ignition system, gas-fired equipment and method of igniting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |