CN205640902U - Direct -flow gas burning unit - Google Patents
Direct -flow gas burning unit Download PDFInfo
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- CN205640902U CN205640902U CN201620234105.8U CN201620234105U CN205640902U CN 205640902 U CN205640902 U CN 205640902U CN 201620234105 U CN201620234105 U CN 201620234105U CN 205640902 U CN205640902 U CN 205640902U
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Abstract
The utility model relates to a direct -flow gas burning unit, including air supply equipment (1), air tee bend (4), gas spray tube (6) and nozzle pipe (5), in air tee bend (4) were located in gas spray tube (6), the left end of gas spray tube (6) was connected with tee bend apron (2), be equipped with buffer board (8) and flame cover (7) in nozzle pipe (5), are buffer board (8) through mounting hole (8 2 )The cover is on gas spray tube (6), and the left end of flame cover (7) is connected with the right -hand member of gas spray tube (6), link up in air tee bend (4) and be equipped with ignitor electrode (11) and detection electrode (12). The utility model discloses on the structure foundation of original gas combustion ware, adjust the structure and the position of each part, design into multistage mixture, hierarchical air feed, continuous ignition's structure to stable performance when guaranteeing gas combustion.
Description
Technical field
This utility model relates to gas combustion apparatus technical field, especially a kind of direct current gas combustion apparatus.
Background technology
Exceeded standard due to PM2.5 in recent years, fuel price goes up, large quantities of coal-fired heating equipment are closed, many factories need to carry out " coal changes gas ", the reducing energy consumption of " oil to gas ", in grassroot project, firing equipment is also many with combustion gas as main fuel, gas heating equipment has very big market in recent years, and as the core component of firing equipment, the quality of burner has a significant impact for firing equipment performance.
The normal produced problem of gas burner include mixing uneven cause incomplete combustion, run that excess air factor is high, loss of ignition rate is high, power regulating range narrow, easy is tempered, de-fire, flame-out etc..Conventional burners usually there will be one or more the problems referred to above.For compared to fuel oil and fire coal, the safety problem of gas-fired equipment is particularly paid attention to, and therefore the job stability of gas burner determines its application
The present invention be directed to existing problems design in actual application.OPB type gas burner of the present invention,.Thus can ensure that stable performance during fuel gas buring.
Utility model content
The purpose of this utility model is the defect overcoming prior art to exist, there is provided a kind of on the architecture basics of original gas burner, adjust structure and the position of each parts, it is designed to multistage mixing, classification air feed, the structure of continuous ignition, thus improves the direct current gas combustion apparatus of range of accommodation, ignition success rate.
This utility model solves its technical problem and be the technical scheme is that a kind of direct current gas combustion apparatus, including ventilation apparatus, air threeway, exhaust gas nozzle and burner pipe, described ventilation apparatus is connected with the lower end of air threeway, described burner pipe is connected with the right-hand member of air threeway, the left end of described air threeway is provided with threeway cover plate, wherein: described exhaust gas nozzle is located in air threeway 4, and the left end of exhaust gas nozzle is connected with threeway cover plate；Being provided with buffer board and flame cover in described burner pipe, described buffer board is placed on exhaust gas nozzle by installing hole, and the left end of flame cover is connected with the right-hand member of exhaust gas nozzle；The left end of described ignitor is fixed on threeway cover plate, and the left end of ignitor is provided with ignition power polar cap, and the right-hand member of ignitor is through the ignitor hole one on buffer board, and is connected by ignitor hole two and flame cover are fixing；The left end of described detecting electrode is fixed on threeway cover plate, and the left end of detecting electrode is provided with detecting electrode cap, and the right-hand member of detecting electrode is through the detecting electrode hole one on buffer board, and is connected by detecting electrode hole two and flame cover are fixing；Described flame cover is provided with igniting pin near the side of ignitor.
Further, the stage casing of described exhaust gas nozzle is provided with buffer board locating slot, and the right-hand member of exhaust gas nozzle is provided with flame cover locating slot.
Further, described exhaust gas nozzle is respectively equipped with from left to right primary spray-hole, secondary spray-hole and final stage spray-hole；Described primary spray-hole is positioned at air threeway, and secondary spray-hole is between buffer board and flame cover, and final stage spray-hole is positioned at flame cover.
Further, the spray-hole that described primary spray-hole is evenly distributed on same circle by several forms, and according to different capacity, exhaust gas nozzle diameter increases with power and increases, and the number of perforations that different-diameter is opened also has difference.
Further, the spray-hole that described secondary spray-hole is evenly distributed on same circle by several forms, and the opening direction of secondary spray-hole, for being perpendicular to axis, is tangential on exhaust gas nozzle inner circle.
Further, the spray-hole that described final stage spray-hole is evenly distributed on same circle by several forms.
Further, the sidewall of described flame cover is evenly distributed with some primary air nozzles；Being additionally provided with igniting pin-and-hole on the base plate of described flame cover, described igniting pin is fixed in flame cover by igniting pin-and-hole；Described flame cover supports fin relative to being all arranged with several on the other end edge of base plate.
Further, the outer wall of described air threeway is provided with pressure tap.
Further, described threeway cover plate is provided with flame-observing mirror, and described flame-observing mirror is positioned at the top position of exhaust gas nozzle.
Further, described burner pipe is provided with flame rings relative to the other end of air threeway.
The beneficial effects of the utility model: 1, this utility model is on the architecture basics of original gas burner, adjust structure and the position of each parts, are designed to multistage mixing, classification air feed, the structure of continuous ignition, thus stable performance when ensureing fuel gas buring；2, this utility model simple in construction, easily produces, easy care and promoting the use of；3, this utility model uses detecting electrode to start working after flame stabilization, and as found non-normal flameout, electrode will send signals to controller and suitably operates, it is to avoid cause danger；4, this utility model uses pressure tap, detects air pressure, it is ensured that the safe operation of equipment when being used for debugging；5, the use of this utility model flame-observing mirror, is used for burning when running and can observe flame situation at any time.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of this utility model device；
Fig. 2 is A-A generalized section of the present utility model；
Fig. 3 is B-B generalized section of the present utility model；
Fig. 4 is the enlarged diagram of view A of the present utility model；
Fig. 5 is exhaust gas nozzle schematic diagram of the present utility model；
Fig. 6 is C-C generalized section of the present utility model；
Fig. 7 is D-D generalized section of the present utility model；
Fig. 8 is E-E generalized section of the present utility model；
Fig. 9 is the side schematic view of this utility model flame cover；
Figure 10 is the front schematic view of this utility model flame cover；
Figure 11 is the schematic diagram of this utility model buffer board；
Figure 12 is the air in this utility model device and combustion gas flows to schematic diagram.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As shown in Fig. 1 ~ 11, a kind of direct current gas combustion apparatus, including ventilation apparatus 1, air threeway 4, exhaust gas nozzle 6 and burner pipe 5, described ventilation apparatus 1 is connected with the lower end of air threeway 4, described burner pipe 5 is connected with the right-hand member of air threeway 4, and the left end of described air threeway 4 is provided with threeway cover plate 2, wherein, described exhaust gas nozzle 6 is located in air threeway (4), and the left end of exhaust gas nozzle 6 is connected with threeway cover plate 2；Being provided with buffer board 8 and flame cover 7 in described burner pipe 5, described buffer board 8 is placed on exhaust gas nozzle 6 by installing hole 8-2, and the left end of flame cover 7 is connected with the right-hand member of exhaust gas nozzle 6；Through in described air threeway 4 it is provided with ignitor 11 and detecting electrode 12；The left end of described ignitor 11 is fixed on threeway cover plate 2, and the left end of ignitor 11 is provided with ignition power polar cap 9, and the right-hand member of ignitor 11 is through ignitor hole one 8-1 on buffer board 8, and is connected by ignitor hole two 7-1 is fixing with flame cover 7；The left end of described detecting electrode 12 is fixed on threeway cover plate 2, and the left end of detecting electrode 12 is provided with detecting electrode cap 10, and the right-hand member of detecting electrode 12 is through detecting electrode hole one 8-3 on buffer board 8, and is connected by detecting electrode hole two 7-1 is fixing with flame cover 7；Described flame cover 7 is provided with igniting pin 14 near the side of ignitor 11.
Specifically, the stage casing of described exhaust gas nozzle 6 is provided with buffer board locating slot 6-1, and the right-hand member of exhaust gas nozzle 6 is provided with flame cover locating slot 6-5.
Specifically, described exhaust gas nozzle 6 is respectively equipped with from left to right primary spray-hole 6-3, secondary spray-hole 6-4 and final stage spray-hole 6-2；Described primary spray-hole 6-3 is positioned at air threeway 4, and secondary spray-hole 6-4 is between buffer board 8 and flame cover 7, and final stage spray-hole 6-2 is positioned at flame cover 7.
Specifically, described primary spray-hole 6-3 is made up of four spray-holes being evenly distributed on same circle.
Specifically, described secondary spray-hole 6-4 is made up of six spray-holes being evenly distributed on same circle.
Specifically, described final stage spray-hole 6-2 is made up of six spray-holes being evenly distributed on same circle.
Specifically, the sidewall of described flame cover 7 is evenly distributed with some primary air nozzle 7-5；Being additionally provided with igniting pin-and-hole 7-3 on the base plate of described flame cover 7, described igniting pin 14 is fixed in flame cover 7 by igniting pin-and-hole 7-3；Described flame cover 7 supports fin 7-4 relative to being all arranged with several on the other end edge of base plate.
Specifically, the outer wall of described air threeway 4 is provided with pressure tap 16.
Specifically, described threeway cover plate 2 is provided with flame-observing mirror 13, and described flame-observing mirror 13 is positioned at the top position of exhaust gas nozzle 6.
Specifically, described burner pipe 5 is provided with flame rings 15 relative to the other end of air threeway 4.
As indicated in figs. 2 and 12, in this equipment running process, ventilation apparatus 1 is passed through air by the arm of air threeway 4, slows down and all press in the cavity of air threeway 4, reduces flow velocity and the fluctuation of pressure.Then air-flow continues rearward to flow to be stopped at buffer board 8, so buffer board 8 forefront pressure raises, then air-flow is reduced by the annular region between buffer board 8 and burner pipe 5, flow area, and flow velocity increases, static pressure reduces, and along buffer board 8 outer circumferential circlewise stream rotation nest, make buffer board be in the turbulent Xuan Wo district of low pressure to this section of region of flame cover 7, simultaneously because the effect of buffer board 8, this section of flow velocity is the most relative with pressure stable, less with regulating working conditions change.After air arrives flame cover 7, owing to supporting the effect of fin 7-4, support fin 7-4 front end and form again high pressure section, portion of air enters flame cover 7 and combustion gas mixing as First air by the primary air nozzle 7-5 on this section of flame cover 7, and another air is allocated as being passed through in the clearance aperture supported between fin 7-4 for secondary wind.
As shown in Fig. 2 ~ 10 and Figure 12, combustion gas is passed through exhaust gas nozzle 6 from fuel gas inlet 3, at the primary spout 6-3 of exhaust gas nozzle 6, air pressure is higher than combustion gas, a small amount of air is by entering gas pipeline 6 and combustion gas mixing (now oxygen content is near but below catching fire concentration) at this, even if this purpose of design is to ensure that follow-up mixed process undercompounding also can normal ignition.When combustion gas arrives secondary spray-hole 6-4, low pressure Xuan Wo district at air, gaseous-pressure is higher than air, a small amount of combustion gas from secondary spray-hole 6-4 ejection and mixes with air under the Involving velocity of whirlpool, this part mixed gas enters flame cover by the aperture on the base plate of flame cover 7, after ignitor 11 ignites, form annular flame, be continuously main pipeline gas ignition, decrease and extinguish and the danger of de-fire.As shown in Figure 7, the opening direction of secondary spray-hole 6-4, for being perpendicular to axis, is tangential on exhaust gas nozzle 6 inner circle, and its advantage is the tangential rotation nest region entering annular of combustion gas approximation, combustion gas and air have longer mixed path, it is ensured that the uniformity that combustion gas is distributed at whole annular space.
Combustion gas mixes with First air after being passed through flame cover 7, and now mixed gas oxygen concentration is less than completely burned off requisite oxygen concentration, and flame is in high-temperature low-oxygen state.Because at high temperature nitrogen and oxygen can generate NO in a large numberx(NOxIt is that nitrogen aoxidizes general name, including N2O, NO, NO2, N2O3 、N2O5), make flame be in high-temperature low-oxygen state and decrease the generation of high temperature nitrogen oxide.
Secondary wind is close to burner pipe 5 inwall, partly in order to reduce the high temperature erosion to burner pipe 5, on the other hand the partial heat of thermal-flame is the most first made to pass to Cryogenic air by radiation, mix again after flame temperature is reduced to a certain degree, reduce the NO under the high temperature oxygen environment of mixing momentXGenerate.After mixing, oxygen content raises, and flame temperature is lowered, and destroys NOXA large amount of conditions generated.
Gas after being thoroughly mixed is by spraying after flame rings 15, and the effect of flame rings 15 is: 1, reduces actual internal area, improves spouting velocity；2, air and the mixing of combustion gas are promoted further, it is ensured that burning is fully.The air capacity that secondary is passed through makes oxygen excess, reduces CO and generates, but should be not too much, and otherwise flame temperature does not reaches requirement.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (10)
1. a direct current gas combustion apparatus, including ventilation apparatus (1), air threeway (4), exhaust gas nozzle (6) and burner pipe (5), described ventilation apparatus (1) is connected with the lower end of air threeway (4), described burner pipe (5) is connected with the right-hand member of air threeway (4), the left end of described air threeway (4) is provided with threeway cover plate (2), it is characterized in that: described exhaust gas nozzle (6) is located in air threeway (4), and the left end of exhaust gas nozzle (6) is connected with threeway cover plate (2)；Being provided with buffer board (8) and flame cover (7) in described burner pipe (5), described buffer board (8) is placed on exhaust gas nozzle (6) by installing hole (8-2), and the left end of flame cover (7) is connected with the right-hand member of exhaust gas nozzle (6)；Through in described air threeway (4) it is provided with ignitor (11) and detecting electrode (12)；The left end of described ignitor (11) is fixed on threeway cover plate (2), the left end of ignitor (11) is provided with ignition power polar cap (9), the right-hand member of ignitor (11) is through the ignitor hole one (8-1) on buffer board (8), and is connected by ignitor hole two (7-1) and flame cover (7) are fixing；The left end of described detecting electrode (12) is fixed on threeway cover plate (2), the left end of detecting electrode (12) is provided with detecting electrode cap (10), the right-hand member of detecting electrode (12) is through the detecting electrode hole one (8-3) on buffer board (8), and is connected by detecting electrode hole two (7-1) and flame cover (7) are fixing；Described flame cover (7) is provided with igniting pin (14) near the side of ignitor (11).
Direct current gas combustion apparatus the most according to claim 1, it is characterised in that: the stage casing of described exhaust gas nozzle (6) is provided with buffer board locating slot (6-1), and the right-hand member of exhaust gas nozzle (6) is provided with flame cover locating slot (6-5).
Direct current gas combustion apparatus the most according to claim 1 and 2, it is characterised in that: it is respectively equipped with primary spray-hole (6-3), secondary spray-hole (6-4) and final stage spray-hole (6-2) on described exhaust gas nozzle (6) from left to right；Described primary spray-hole (6-3) is positioned at air threeway (4), and secondary spray-hole (6-4) is positioned between buffer board (8) and flame cover (7), and final stage spray-hole (6-2) is positioned at flame cover (7).
Direct current gas combustion apparatus the most according to claim 3, it is characterised in that: described primary spray-hole (6-3) is made up of four spray-holes being evenly distributed on same circle.
Direct current gas combustion apparatus the most according to claim 3, it is characterized in that: described secondary spray-hole (6-4) is made up of six spray-holes being evenly distributed on same circle, the opening direction of secondary spray-hole (6-4), for being perpendicular to axis, is tangential on exhaust gas nozzle (6) inner circle.
Direct current gas combustion apparatus the most according to claim 3, it is characterised in that: described final stage spray-hole (6-2) is made up of six spray-holes being evenly distributed on same circle.
Direct current gas combustion apparatus the most according to claim 1, it is characterised in that: it is evenly distributed with some primary air nozzles (7-5) on the sidewall of described flame cover (7)；Being additionally provided with igniting pin-and-hole (7-3) on the base plate of described flame cover (7), described igniting pin (14) is fixed in flame cover (7) by igniting pin-and-hole (7-3)；Described flame cover (7) supports fin (7-4) relative to being all arranged with several on the other end edge of base plate.
Direct current gas combustion apparatus the most according to claim 1, it is characterised in that: the outer wall of described air threeway (4) is provided with pressure tap (16).
Direct current gas combustion apparatus the most according to claim 1, it is characterised in that: described threeway cover plate (2) is provided with flame-observing mirror (13), and described flame-observing mirror (13) is positioned at the top position of exhaust gas nozzle (6).
Direct current gas combustion apparatus the most according to claim 1, it is characterised in that: described burner pipe (5) is provided with flame rings (15) relative to the other end of air threeway (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620234105.8U CN205640902U (en) | 2016-03-24 | 2016-03-24 | Direct -flow gas burning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620234105.8U CN205640902U (en) | 2016-03-24 | 2016-03-24 | Direct -flow gas burning unit |
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| Publication Number | Publication Date |
|---|---|
| CN205640902U true CN205640902U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620234105.8U Active CN205640902U (en) | 2016-03-24 | 2016-03-24 | Direct -flow gas burning unit |
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| CN (1) | CN205640902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332533A (en) * | 2019-06-04 | 2019-10-15 | 陈美香 | A kind of anticreep fire natural gas combustion nozzle |
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2016
- 2016-03-24 CN CN201620234105.8U patent/CN205640902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332533A (en) * | 2019-06-04 | 2019-10-15 | 陈美香 | A kind of anticreep fire natural gas combustion nozzle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |