CN207006146U - All-premixing burner - Google Patents
All-premixing burner Download PDFInfo
- Publication number
- CN207006146U CN207006146U CN201720632825.4U CN201720632825U CN207006146U CN 207006146 U CN207006146 U CN 207006146U CN 201720632825 U CN201720632825 U CN 201720632825U CN 207006146 U CN207006146 U CN 207006146U
- Authority
- CN
- China
- Prior art keywords
- fire
- hole
- spit
- flow jeting
- jeting port
- 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
- 230000008602 contraction Effects 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 19
- 239000002737 fuel gas Substances 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000005496 tempering Methods 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000008246 gaseous mixture Substances 0.000 description 3
- 239000008236 heating water Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Gas Burners (AREA)
Abstract
It the utility model is related to a kind of all-premixing burner.It includes fire row and gas distribution pipe, the fire row has multiple be arranged side by side, fuel gas inlet is provided with the middle part of the gas distribution pipe, the outlet of gas distribution pipe is corresponding with the import of fire row respectively, the fire row includes superposed flow jeting port, hungry ghosts who spit fire positioned at top, contraction section positioned at middle part and the mixing chamber positioned at bottom, the thickness of the contraction section is less than the thickness of mixing chamber, it is flow jeting port above contraction section, anti-backfire hole is provided with flow jeting port, hungry ghosts who spit fire is set on flow jeting port, flame hole is provided with hungry ghosts who spit fire, the fire hole gross area in anti-backfire hole is less than the fire hole gross area in flame hole.A kind of all-premixing burner of the utility model, not only high combustion efficiency, and the temperature of mixing chamber is low, it can effectively prevent from being tempered.
Description
Technical field
A kind of all-premixing burner is the utility model is related to, for gas instantaneous water heater and gas-heating water heater.Category
In technical field of combustion equipment.
Background technology
Conventional gas instantaneous water heater and gas-heating water heater uses atmospheric burning type, can produce substantial amounts of CO and nitrogen
Oxide（NOx）Deng waste gas.Therefore had the characteristics that both at home and abroad in research and development all-premixing burner, all-premixing burner：①
The reaction holdup time in flame high-temperature region is short so as to which reaction speed is fast；2. coefficient of excess air is small, burning velocity is fast, the thermal efficiency
The noxious gas emissions such as height, nitrogen oxides and carbon monoxide are low.
Existing all-premixing burner fuel gas inlet is monoblock type, and mixing chamber does not have contraction section, only in anti-backfire hole and
Flame is made an issue of on hole, it is impossible to fundamentally solves the problems, such as tempering.
Existing one of existing all-premixing burner general problem is that, heat radiation causes greatly combustion gas and the mixing of air
Regional temperature is high, and so as to cause burning velocity fast, combustion reaction is fast, is easily tempered.
The content of the invention
A kind of the purpose of this utility model is to overcome above-mentioned deficiency, there is provided all-premixing burner.
What the purpose of this utility model was realized in：
A kind of all-premixing burner, is characterized in：It includes fire row and gas distribution pipe, and the fire row has multiple and arranged
Put, fuel gas inlet, corresponding with the import of fire row respectively, the institute in outlet of gas distribution pipe are provided with the middle part of the gas distribution pipe
Stating fire row includes superposed flow jeting port, the hungry ghosts who spit fire positioned at top, the contraction section positioned at middle part and the mixing chamber positioned at bottom,
The thickness of the contraction section is less than the thickness of mixing chamber, is flow jeting port above contraction section, anti-backfire hole, hungry ghosts who spit fire are provided with flow jeting port
It is set on flow jeting port, flame hole is provided with hungry ghosts who spit fire, the fire hole gross area in anti-backfire hole is less than the fire hole gross area in flame hole.
A kind of all-premixing burner of the utility model, there is gap between its two adjacent hungry ghosts who spit fire.
A kind of all-premixing burner of the utility model, its fire row are made of stainless steel material.
A kind of all-premixing burner of the utility model, its hungry ghosts who spit fire lower section are provided with copper pipe, cooling water are passed through in copper pipe.
A kind of all-premixing burner of the utility model, fin is provided with its copper pipe.
Compared with prior art, the beneficial effects of the utility model are：
It is all-premixing burner without the entrance of auxiliary air, full premix fires 1. the utility model is only with primary air
The combustion reaction of burner is fast, and contraction section is provided between mixing chamber and flow jeting port of the present utility model, in the presence of contraction section,
Gaseous jet speed at contraction section is fast, balances the combustion velocity at flow jeting port, therefore can effectively prevent from being tempered.
2. the utility model is provided with hungry ghosts who spit fire at flow jeting port, the combustion velocity at hungry ghosts who spit fire and the combustion gas at flow jeting port
Jet velocity reaches balance, can effectively prevent the generation of tempering.
It is copper because the thermal conductivity factor of stainless steel is relatively low 3. fire row of the present utility model is made of stainless steel material
1/20, therefore radiant heat caused by burner combustion does not interfere with the temperature of mixing chamber, actual measurement, the temperature of mixing chamber is on 40 DEG C of left sides
It is right.
4. there is gap so that surrounding air flows through mixing chamber surface between two adjacent hungry ghosts who spit fire of the utility model, work as spoke
When penetrating heat transfer to mixing chamber, in this gap in the presence of, heat caused by radiation is pulled away with surrounding air so that mixing
Room keeps low temperature,（This component environment air is not involved in burning）.
5. being provided with copper pipe below hungry ghosts who spit fire of the present utility model, fin is provided with copper pipe, cooling water is passed through in copper pipe,
In the presence of copper pipe and fin, the temperature of mixing chamber is effectively reduced, prevents from being tempered and reduces reduction NOx discharge.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of all-premixing burner of the utility model.
Fig. 2 is the schematic diagram of single fire row of the present utility model.
Fig. 3 is Fig. 2 front view.
Fig. 4 is Fig. 3 A-A sectional views.
Fig. 5 is the schematic diagram of hungry ghosts who spit fire of the present utility model.
Fig. 6 is the upward view of embodiment 1 of the present utility model.
In figure：
Fuel gas inlet 1,
Fire row air inlet 2,
Fire row 3,
Mixing chamber 3.1,
Contraction section 3.2,
Flow jeting port 3.3,
Anti-backfire hole 3.3.1,
Hungry ghosts who spit fire 4,
Flame hole 4.1,
Gas distribution pipe 5,
Copper pipe 6.
Embodiment
Referring to Fig. 1-5, a kind of all-premixing burner is the utility model is related to, it includes fire row 3 and gas distribution pipe 5, institute
State fire row 3 have it is multiple be arranged side by side, the middle part of the gas distribution pipe 5 is provided with fuel gas inlet 1, the outlet of gas distribution pipe 5
Corresponding with fire row air inlet 2 respectively, the fire row 3 includes superposed flow jeting port 3.3, hungry ghosts who spit fire 4 positioned at top, in being located at
The contraction section 3.2 in portion and the mixing chamber 3.1 positioned at bottom, the thickness of the contraction section 3.2 are less than the thickness of mixing chamber 3.1, receive
The top of contracting section 3.2 is flow jeting port 3.3, is provided with anti-backfire hole 3.3.1 on flow jeting port 3.3, hungry ghosts who spit fire 4 is set on flow jeting port 3.3, flame
Flame hole 4.1 is provided with mouth 4, the anti-backfire hole 3.3.1 fire hole gross area is less than the fire hole gross area in flame hole 4.1.
Wherein the anti-backfire hole 3.3.1 fire hole gross area refers to the sum of all anti-backfire hole 3.3.1 hole area, flame hole
The 4.1 fire hole gross area refers to the sum of the hole area in all flame holes 4.1.
The outlet of gas distribution pipe 5 sets nozzle, has injection air effect.
There is gap between two adjacent hungry ghosts who spit fire 4.
The fire row 3 is made of stainless steel material, is the 1/20 of copper, therefore because the thermal conductivity factor of stainless steel is relatively low
Radiant heat caused by burner combustion does not interfere with the temperature of mixing chamber 3.1.
Operation principle：
A kind of all-premixing burner of the utility model, combustion gas enter from fuel gas inlet 1, in the presence of gas distribution pipe 5
Multiple fire rows 3 are respectively enterd, surrounding air, as combustion gas enters fire row air inlet 2 together, mixes in the exit of gas distribution pipe 5
It is abundant to close air 3.1 mixing in mixing chamber, contraction section 3.2 is provided between mixing chamber 3.1 and flow jeting port 3.3, in contraction section
In the presence of 3.2, the gaseous mixture jet speed at contraction section 3.2 is fast, balances the combustion velocity at flow jeting port 3.3, because
This can effectively prevent from being tempered.
The utility model is only with primary air, without the entrance of auxiliary air.
But only contraction section can not effectively prevent from being tempered, because now the temperature of mixing chamber 3.1 is still higher,
Still there is the hidden danger of tempering, the utility model is provided with hungry ghosts who spit fire 4 at flow jeting port 3.3, and principle is such as the foregoing He of contraction section 3.2
Flow jeting port 3.3, because the anti-backfire hole 3.3.1 fire hole gross area is less than the fire hole gross area in flame hole 4.1, therefore flow jeting port 3.3
The gaseous mixture jet speed at place is less than the jet speed of the gaseous mixture at hungry ghosts who spit fire 4, and now flow jeting port 3.3 " is received equivalent to foregoing
Contracting section 3.2 ", hungry ghosts who spit fire 4 equivalent to it is foregoing " flow jeting port 3.3 ", combustion velocity at hungry ghosts who spit fire 4 with it is mixed at flow jeting port 3.3
Close gas jet speed and reach balance, can effectively prevent the generation of tempering.
Embodiment 1：Referring to Fig. 6, copper pipe 6 is provided with the lower section of hungry ghosts who spit fire 4, cooling water is passed through in copper pipe 6, effectively reduces
The temperature of mixing chamber, prevent tempering and temperature when burning can be reduced while reduce NOx discharge.
Embodiment 2：Fin is installed additional on copper pipe 6, in the presence of fin, strengthens the heat exchange efficiency of copper pipe, further drop
The temperature of low mixing chamber.
Claims (5)
- A kind of 1. all-premixing burner, it is characterised in that：It includes fire row and gas distribution pipe, and the fire row has multiple and arranged Put, fuel gas inlet, corresponding with the import of fire row respectively, the institute in outlet of gas distribution pipe are provided with the middle part of the gas distribution pipe Stating fire row includes superposed flow jeting port, the hungry ghosts who spit fire positioned at top, the contraction section positioned at middle part and the mixing chamber positioned at bottom, The thickness of the contraction section is less than the thickness of mixing chamber, is flow jeting port above contraction section, anti-backfire hole, hungry ghosts who spit fire are provided with flow jeting port It is set on flow jeting port, flame hole is provided with hungry ghosts who spit fire, the fire hole gross area in anti-backfire hole is less than the fire hole gross area in flame hole.
- A kind of 2. all-premixing burner according to claim 1, it is characterised in that：Between having between two adjacent hungry ghosts who spit fire Gap.
- A kind of 3. all-premixing burner according to claim 1, it is characterised in that：The fire row uses stainless steel material system Into.
- A kind of 4. all-premixing burner according to claim 1, it is characterised in that：Copper pipe is provided with below the hungry ghosts who spit fire, Cooling water is passed through in copper pipe.
- A kind of 5. all-premixing burner according to claim 4, it is characterised in that：Fin is provided with the copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632825.4U CN207006146U (en) | 2017-06-02 | 2017-06-02 | All-premixing burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632825.4U CN207006146U (en) | 2017-06-02 | 2017-06-02 | All-premixing burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207006146U true CN207006146U (en) | 2018-02-13 |
Family
ID=61446376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720632825.4U Active CN207006146U (en) | 2017-06-02 | 2017-06-02 | All-premixing burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207006146U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218599A (en) * | 2017-06-02 | 2017-09-29 | 江苏叶茂厨卫科技有限公司 | All-premixing burner |
| TWI662231B (en) * | 2018-04-10 | 2019-06-11 | 關中股份有限公司 | Wind-resistant outdoor stove combustion device |
-
2017
- 2017-06-02 CN CN201720632825.4U patent/CN207006146U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218599A (en) * | 2017-06-02 | 2017-09-29 | 江苏叶茂厨卫科技有限公司 | All-premixing burner |
| CN107218599B (en) * | 2017-06-02 | 2023-09-19 | 江苏叶茂厨卫科技有限公司 | Full premix burner |
| TWI662231B (en) * | 2018-04-10 | 2019-06-11 | 關中股份有限公司 | Wind-resistant outdoor stove combustion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109695877B (en) | Two-stage combustion type fire grate burner | |
| CN108006946A (en) | Gas heater and gas heater method for controlling combustion | |
| CN207065570U (en) | Burner and gas heater | |
| CN104566372A (en) | Water-cooled fully premixed burner | |
| CN109404905A (en) | Burners and Gas Water Heaters | |
| CN205447747U (en) | Ultralow NOx combustor of hot flue gas self -loopa type | |
| CN110360558B (en) | Cooling flame low-nitrogen combustion device and combustion method thereof | |
| CN207006146U (en) | All-premixing burner | |
| CN206469470U (en) | Gas heater | |
| CN204438118U (en) | The fully premixed burner of water-cooled | |
| CN108386836A (en) | A kind of natural gas premix burner with elliptical tube pipe row's smooth combustion apparatus | |
| CN109695873B (en) | A flow-equalizing fire piece | |
| CN207214041U (en) | A kind of all-premixing burner | |
| CN202328231U (en) | Gas burner for low emission of NOx (Nitric Oxide) on bottom of cracking furnace | |
| CN212361976U (en) | Finned tube type multi-return low-nitrogen condensation fuel gas evaporator | |
| CN109695875A (en) | A kind of more injection tubular type fire pieces | |
| CN108317512A (en) | A kind of natural gas premix burner with oval shape tube pipe row's smooth combustion apparatus | |
| CN101556058A (en) | Ventilation tower-type lower air-inlet gas cooker | |
| CN207214042U (en) | Heavy duty detergent all-premixing burner | |
| CN107218599B (en) | Full premix burner | |
| CN207394904U (en) | A kind of straight way type flame front cooling structure | |
| CN102434896B (en) | A kind of can the gas-cooker of improving energy efficiency | |
| CN210511667U (en) | Cooling flame low-nitrogen combustion device | |
| CN207214043U (en) | All-premixing burner | |
| CN211316167U (en) | Combustor and gas heater who has it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |