CN210801183U - Burner with two linear fire holes - Google Patents
Burner with two linear fire holes Download PDFInfo
- Publication number
- CN210801183U CN210801183U CN201921786237.1U CN201921786237U CN210801183U CN 210801183 U CN210801183 U CN 210801183U CN 201921786237 U CN201921786237 U CN 201921786237U CN 210801183 U CN210801183 U CN 210801183U
- Authority
- CN
- China
- Prior art keywords
- gas
- fire
- flame
- main
- distributor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a burner with two linear array fire holes, which comprises a main body fire exhaust sheet, a secondary air adjusting plate and a fuel gas conveying device; the utility model discloses a set up two flame ports that add one on body fire row piece, through the structure that changes gas channel and accent gas area, expanded fire hole combustion area, changed the combustion strength of fire hole face, reduced the height of fire hole flame burning, the adoption sets up the supplementary passageway that admits air of long banding main air channel and round hole form on the secondary air register board to change the combustion coefficient a1 of fuel, make flame reduce, thereby reduce the emission of NOx nitrogen oxide among the thermal reaction process. The utility model discloses reduced the height of fire hole flame burning, reduced the temperature of flame, and obviously reduced the emission of NOx nitrogen oxide in the thermal reaction process of combustor. Has the advantages of small combustion load, light combustion vibration and low combustion noise.
Description
The technical field is as follows:
the utility model belongs to the technical field of gas burner technique and specifically relates to a two add combustor in linear array fire hole.
Background art:
the nitrogen oxides NOx comprise NO, NO2, N2O, N2O3, N2O4, N2O5 and the like, and the NOx in the flue gas is mainly NO and NO 2. NO is highly toxic and binds readily to hemoglobin Hb in blood, causing central paralysis due to hypoxia of the blood, and has an affinity for hemoglobin of about several hundred to thousand times that of CO. The pollution of NOx to the environment and the hazard to the human body are well known.
The nitrogen oxides produced during the combustion process in gas burners are mainly NO and NO2, which are commonly known as nitrogen oxides NOx. A large number of experimental results show that the nitrogen oxides discharged from the combustor are mainly NO, and the nitrogen oxides are about 95 percent on average, while the nitrogen oxides NO2 are only about 5 percent. The NO produced by the combustion of typical fuels comes primarily from two areas: firstly, nitrogen in combustion air is oxidized in the combustion process; secondly, the nitrogen contained in the fuel is re-oxidized after thermal decomposition in the combustion process, the nitrogen is the main source of NO, the NO is called as 'thermal reaction NO', the nitrogen is called as 'fuel NO', and a small amount of 'instantaneous NO' exists.
In most combustion processes of combustors, NOx is generated by gas in the combustion process, and the combustion method and the combustion conditions have a great influence on the generation of NOx, so that the generation of NOx can be reduced by improving the combustion state, and the specific method is as follows: low flame combustion method, increased combustion coefficient a1, and the like.
The burner in the prior art has the problems that the flame ports are unreasonably formed, and the combustion area is too small. According to the low NOx combustion principle and experiments, the NOx source in the fuel gas mainly comes from the thermal reaction NOx, and in order to reduce the NOx emission in the fuel gas, the height of the flame is reduced as much as possible so as to reduce the temperature of the flame, thereby reducing the NOx emission in the thermal reaction process.
Since the burner is a key component in the overall gas-fired equipment, it is responsible for stable combustion of fuel and as complete combustion of fuel as possible, and for this purpose, it is necessary to start with the structure of the burner in order to suppress the amount of NOx produced, achieve low-flame combustion, and increase the combustion coefficient a 1.
The utility model has the following contents:
the utility model aims at the not enough and combustor that a two add a linear array fire hole that provide to prior art, the utility model discloses a set up two on body fire row piece and added a flame vent, through the structure that changes gas channel and accent the gas area, expanded fire hole combustion area, changed the combustion strength of fire hole face, reduced fire hole flame burning's height, adopt and set up the air inlet auxiliary passage of rectangular form main entrance and the round hole form of admitting air on the secondary air regulating plate to change the combustion coefficient a1 of fuel, make flame reduce, thereby reduce the emission of NOx nitrogen oxide among the thermal reaction process. The utility model discloses reduced the height of fire hole flame burning, reduced the temperature of flame, and obviously reduced the emission of NOx nitrogen oxide in the thermal reaction process of combustor. Has the advantages of small combustion load, light combustion vibration and low combustion noise.
Realize the utility model discloses the concrete technical scheme of purpose is:
a burner with two linear fire holes is characterized in that the burner comprises a main body fire exhaust sheet, a secondary air adjusting plate and a fuel gas conveying device;
the body fire exhaust sheet is formed by stamping a plate and is a cavity piece formed by overlapping a flame port, a gas adjusting belt and a gas channel, the flame port is arranged on the upper plane, the gas adjusting belt is arranged below the flame port, the gas channel is arranged below the gas adjusting belt, the gas channel is arranged in a curve shape and consists of a gas inlet, a gas mixing section and a gas pressure reducing section in sequence,
the secondary air adjusting plate is formed by stamping a plate, a main plane is arranged on the secondary air adjusting plate, a distributor seat is arranged on one side of the main plane, a row of main body fire grate seats are arranged on the other side of the main plane, and a strip-shaped air inlet main channel and a round hole-shaped air inlet auxiliary channel are arranged on the main plane;
the gas conveying device is provided with a gas conveying main pipe, a distributor and a plurality of nozzles, wherein the distributor is long-strip-shaped, one side of the distributor is provided with a gas conveying main pipe interface, the other side of the distributor is sequentially provided with a plurality of nozzle seats, the gas conveying main pipe is connected with the gas conveying main pipe interface of the distributor, and the plurality of nozzles are sequentially arranged on the nozzle seats of the distributor;
the gas conveying device is arranged on a distributor seat of the secondary air regulating plate through a distributor, the main body fire exhaust fins are a plurality of pieces and are sequentially arranged on the main body fire exhaust fin seat of the secondary air regulating plate, and gas inlets of the plurality of main body fire exhaust fins are respectively in one-to-one correspondence with the plurality of nozzles.
The gas adjusting belt of the gas channel is a rhombic cavity which is formed along the longitudinal direction of the fire discharging piece of the body and has a wide middle part and two narrow ends.
The gas inlet of the gas channel is in a horn mouth shape, and flat squares are arranged on two sides of the horn mouth.
The gas mixing section of the gas channel is a taper hole with gradually changed aperture.
The section cavity of the gas pressure reduction section of the gas channel is larger than that of the gas mixing section.
The flame ports of the gas channel are arranged in double rows and single row along the longitudinal direction of the fire row sheet of the body, the main flame ports are arranged in double rows, the adjusting flame ports are arranged in single row, and the main flame ports and the adjusting flame ports are arranged intermittently.
The utility model discloses a set up two flame ports that add one on body fire row piece, through the structure that changes gas channel and accent gas area, expanded fire hole combustion area, changed the combustion strength of fire hole face, reduced the height of fire hole flame burning, the adoption sets up the supplementary passageway that admits air of long banding main air channel and round hole form on the secondary air register board to change the combustion coefficient a1 of fuel, make flame reduce, thereby reduce the emission of NOx nitrogen oxide among the thermal reaction process. The utility model discloses reduced the height of fire hole flame burning, reduced the temperature of flame, and obviously reduced the emission of NOx nitrogen oxide in the thermal reaction process of combustor. Has the advantages of small combustion load, light combustion vibration and low combustion noise.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the gas delivery device of the present invention;
FIG. 3 is a schematic structural view of the fire grate segment of the utility model;
fig. 4 is a schematic view of the structure of fig. 3 according to the present invention;
fig. 5 is a schematic cross-sectional view of the cross-section B-B of fig. 3 according to the present invention;
fig. 6 is a schematic view of the working state of the present invention.
Detailed Description
Referring to fig. 1 and 2, the present invention includes a main body fire exhaust fin 1, a secondary air adjusting plate 2 and a gas conveying device 3.
Referring to fig. 1 and 3, the main body fire exhaust fin 1 is formed by stamping a plate, and is a cavity member formed by overlapping a flame vent 14, an air adjusting belt 15 and a gas channel, wherein the flame vent 14 is arranged on an upper plane, the air adjusting belt 15 is arranged below the flame vent 14, the gas channel is arranged below the air adjusting belt 15, the gas channel is arranged in a curve, and the gas channel sequentially comprises a gas inlet 11, a gas mixing section 12 and a gas pressure reducing section 13.
Referring to fig. 1, the secondary air adjusting plate 2 is formed by stamping a plate, and is provided with a main plane, a distributor seat is arranged on one side of the main plane, a row of main body fire grate seats are arranged on the other side of the main plane, and a strip-shaped main air inlet channel 21 and a round hole-shaped auxiliary air inlet channel 22 are arranged on the main plane.
Referring to fig. 1 and 2, the gas delivery device 3 is provided with a gas delivery main pipe 31, a distributor 32 and a plurality of nozzles 33, the distributor 32 is long, one side of the distributor 32 is provided with a gas delivery main pipe interface, the other side of the distributor is sequentially provided with a plurality of nozzle holders, the gas delivery main pipe 31 is connected with the gas delivery main pipe interface of the distributor 32, and the plurality of nozzles 33 are sequentially arranged on the nozzle holders of the distributor 32.
Referring to fig. 1, 2 and 3, the gas delivery device 3 is mounted on the distributor seat of the secondary air regulating plate 2 through a distributor 32, the main body fire row sheets 1 are several, and are sequentially arranged on the main body fire row sheet seat of the secondary air regulating plate 2, and the gas inlets 11 of the several main body fire row sheets 1 are respectively in one-to-one correspondence with the several nozzles 33.
Referring to fig. 3 and 5, the gas regulating belt 15 of the gas channel is a rhombic cavity which is formed along the longitudinal direction of the main body fire exhaust fin 1 and has a wide middle part and two narrow ends.
Referring to fig. 3, the gas inlet 11 of the gas channel is in a bell mouth shape, and flat sides 111 are disposed at two sides of the bell mouth.
Referring to fig. 3, the gas mixing section 12 of the gas channel is a taper hole with gradually changed aperture.
Referring to fig. 3, the cross-sectional cavity of the gas pressure reducing section 13 of the gas channel is larger than that of the gas mixing section 12.
Referring to fig. 3 and 4, the flame ports 14 of the gas channel are arranged in a double row and a single row along the longitudinal direction of the main fire row piece 1, the main flame ports 141 are arranged in a double row, the adjusting flame ports 142 are arranged in a single row, and the main flame ports 141 and the adjusting flame ports 142 are arranged intermittently.
The utility model discloses a work like this:
referring to fig. 1, 2, 3 and 6, when the gas is input from the gas transmission main pipe 31 of the gas transmission device 3, distributed to each nozzle 33 through the distributor 32, and then sprayed into the gas inlet 11 of the gas channel of the main fire row piece 1 through the nozzle 33, at this time, the gas flow sprayed from the nozzle drives the peripheral primary air to enter the gas mixing section 12 to be mixed, so as to form primary mixed gas, and then the primary mixed gas is reduced in pressure through the gas pressure reduction section 13, so as to reduce the combustion intensity of the gas, and finally the mixed gas is subjected to balanced adjustment through the gas adjusting belt 15 of the diamond-shaped cavity with wide middle part and narrow ends, and meanwhile, the secondary air and the mixed gas flowing in the gas inlet main channel 21 and the gas inlet auxiliary channel 22 on the secondary air adjusting plate 2 are subjected to secondary mixing at the flame port 14, so as to form secondary mixed gas, and the combustion is.
Referring to fig. 1, 3 and 4, the flame ports 14 of the gas channel of the present invention are arranged in a double row and a single row along the longitudinal direction of the main fire row piece 1, the main flame ports 141 are arranged in a double row, the adjusting flame ports 142 are arranged in a single row, and the main flame ports 141 and the adjusting flame ports 142 are arranged in a 2:1 alternating manner, i.e., two rows of the main flame ports 141 and one row of the adjusting flame ports 142 are arranged in an alternating manner. The utility model discloses the combustion area in fire hole has effectively been expanded in the setting of gas passageway flame vent 14.
Referring to fig. 1, fig. 3, fig. 6, the utility model discloses set up main entrance 21 and the auxiliary passage 22 that admits air on secondary air adjusting plate 2, it is even to arrange the longitudinal distribution of piece 1 at body fire for guaranteeing the secondary gas mixture, need arrange the middle part position of piece 1 to body fire and supply more secondary air, for this reason, the utility model discloses the position that lies in body fire on secondary air adjusting plate 2 and arranges 1 middle part of piece has set up banding main entrance 21 that admits air, and the position that lies in body fire on secondary air adjusting plate 2 arranges 1 both ends has set up the auxiliary passage 22 that admits air of round hole form for supply the secondary air that is less than the middle part position a little. The setting of main passageway 21 and the auxiliary passage 22 that admits air has effectively improved secondary air and has arranged the middle part position of piece 1 at body fire comparatively sparsely, and arrange the both ends position of piece 1 at body fire comparatively abundant, lead to secondary gas mixture along the inhomogeneous difficult problem of longitudinal distribution on the flame mouth 14 of piece 1 is arranged to body fire, make secondary gas mixture burning more abundant, thereby reduced the height of fire hole flame burning, the temperature of flame has been reduced, and the discharge of NOx nitrogen oxide among the thermal reaction process of combustor has obviously been reduced.
Referring to fig. 1 and 3, in order to improve the density of the body fire row pieces 1, the utility model discloses set up flat square 111 in the 11 horn mouth-shaped both sides of gas import, through the space that flat square 111 gave way, the body fire row pieces 1 of being convenient for closely arrange.
Claims (6)
1. A burner with two linear fire holes is characterized by comprising a main body fire exhaust sheet (1), a secondary air adjusting plate (2) and a fuel gas conveying device (3);
the body fire exhaust sheet (1) is formed by stamping a plate and is a cavity piece formed by overlapping a flame vent (14), an air adjusting belt (15) and a gas channel, the flame vent (14) is arranged on the upper plane, the air adjusting belt (15) is arranged below the flame vent (14), the gas channel is arranged below the air adjusting belt (15), the gas channel is arranged in a curve shape and consists of a gas inlet (11), a gas mixing section (12) and a gas pressure reducing section (13) in sequence,
the secondary air adjusting plate (2) is formed by stamping a plate, a main plane is arranged on the secondary air adjusting plate, a distributor seat is arranged on one side of the main plane, a row of main body fire grate seats are arranged on the other side of the main plane, and a strip-shaped air inlet main channel (21) and a round hole-shaped air inlet auxiliary channel (22) are arranged on the main plane;
the gas conveying device (3) is provided with a gas conveying main pipe (31), a distributor (32) and nozzles (33), the distributor (32) is long-strip-shaped, one side of the distributor is provided with a gas conveying main pipe interface, the other side of the distributor is sequentially provided with a plurality of nozzle seats, the gas conveying main pipe (31) is connected with the gas conveying main pipe interface of the distributor (32), and the nozzles (33) are sequentially arranged on the nozzle seats of the distributor (32);
the gas conveying device (3) is arranged on a distributor seat of the secondary air adjusting plate (2) through a distributor (32), the body fire exhaust fins (1) are arranged on the body fire exhaust fin seat of the secondary air adjusting plate (2) in sequence, and gas inlets (11) of the body fire exhaust fins (1) are respectively in one-to-one correspondence with the nozzles (33).
2. The burner with two linear arrays of fire holes as claimed in claim 1, wherein the gas adjusting belt (15) of the gas channel is a rhombic cavity with a wide middle part and two narrow ends formed along the longitudinal direction of the main fire row piece (1).
3. A burner with two linear arrays of fire holes according to claim 1, wherein the gas inlet (11) of the gas channel is bell-mouthed and the two sides of the bell-mouthed are provided with flat squares (111).
4. A burner with two linear arrays of fire holes according to claim 1, characterized in that the gas mixing section (12) of the gas channel is a tapered hole with gradually changing aperture.
5. A burner with two linear arrays of fire holes according to claim 1, characterized in that the cross-sectional cavity of the gas pressure reducing section (13) of the gas channel is larger than the cross-sectional cavity of the gas mixing section (12).
6. A burner with two linear arrays of fire holes according to claim 1, wherein the flame ports (14) of the gas channel are arranged in double rows and single row along the longitudinal direction of the body fire row sheet (1), the main flame ports (141) are arranged in double rows, the adjusting flame ports (142) are arranged in single row, and the main flame ports (141) and the adjusting flame ports (142) are arranged intermittently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921786237.1U CN210801183U (en) | 2019-10-23 | 2019-10-23 | Burner with two linear fire holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921786237.1U CN210801183U (en) | 2019-10-23 | 2019-10-23 | Burner with two linear fire holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210801183U true CN210801183U (en) | 2020-06-19 |
Family
ID=71242845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921786237.1U Active CN210801183U (en) | 2019-10-23 | 2019-10-23 | Burner with two linear fire holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210801183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594738A (en) * | 2019-10-23 | 2019-12-20 | 上海金巨源热能技术有限公司 | Burner with two linear fire holes |
-
2019
- 2019-10-23 CN CN201921786237.1U patent/CN210801183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594738A (en) * | 2019-10-23 | 2019-12-20 | 上海金巨源热能技术有限公司 | Burner with two linear fire holes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205119057U (en) | Nitrogen gas burner is thoughtlessly hanged down in advance to percussion flow part | |
| CN106482097A (en) | The partly-premixed low nitrogen burner of percussion flow | |
| CN110594738A (en) | Burner with two linear fire holes | |
| CN210801183U (en) | Burner with two linear fire holes | |
| EP0076036B1 (en) | Method and apparatus for burning fuel in stages | |
| CN106439815A (en) | Secondary air gas-fired boiler combustor and configuration method of secondary air | |
| CN114923172A (en) | Gas-air double-grading ultralow-nitrogen bottom burner and combustion method thereof | |
| CA2421168C (en) | Gas burner | |
| KR100495505B1 (en) | Multi-Control Possible The Gas Burner | |
| CN201277549Y (en) | Multi-unit combined low-nitrogen oxide combustor | |
| KR102330238B1 (en) | In-stream burner module | |
| CN101603687A (en) | The burner of the low NOx that a kind of fuel gas buring is used | |
| WO2022096021A1 (en) | Burner and applications thereof | |
| CN206112931U (en) | Overgrate air gas boiler combustor | |
| CN212339653U (en) | High-efficiency water heater fully utilizing oxygen | |
| CN210568422U (en) | Combustor and gas device thereof | |
| RU2768639C2 (en) | Radiation wall burner | |
| CN2499707Y (en) | Low pollution gas burner | |
| CN213656736U (en) | Low-nitrogen-emission combustion pipe | |
| WO2022096022A1 (en) | Combustion part and combustor | |
| CN218544416U (en) | Column flow multi-cyclone low-nitrogen combustor | |
| CN220567234U (en) | Low-nitrogen burner with balanced gas distribution | |
| CN220728237U (en) | Combustion head and low-nitrogen combustor | |
| CN2851871Y (en) | Burner with low nitrogen oxide exhaust | |
| CN216114022U (en) | Pre-mixing thick-thin burner of pre-mixing fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |