CN105889918A - Low-NOX combustor - Google Patents
Low-NOX combustor Download PDFInfo
- Publication number
- CN105889918A CN105889918A CN201610226514.8A CN201610226514A CN105889918A CN 105889918 A CN105889918 A CN 105889918A CN 201610226514 A CN201610226514 A CN 201610226514A CN 105889918 A CN105889918 A CN 105889918A
- Authority
- CN
- China
- Prior art keywords
- combustion
- gas
- fire grate
- flame
- combustion head
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A low-NOX combustor comprises a combustion head which is arranged in a hearth and used for carrying out ignition for combustion. The combustion head is composed of a fire grate and a flame stabilizing pipe. A cooling water cooling channel for controlling the flame combustion temperature is arranged on each of the fire grate and the flame stabilizing pipe. The combustion head is connected with a gas-air mixer with a draught fan. Gas passes through a gas adjustor to enter the connected gas-air mixer, is mixed and matched with air in the gas-air mixer and then is fed into an isobaric cavity through the draught fan, and the isobaric cavity is directly connected with the combustion head. The low-NOX combustor has the beneficial effects that the structure is simple, use is convenient, the air and the gas can be fully mixed for combustion, and flame balance of the combustion head is achieved, and the problems about combustion isothermality and the like are solved well.
Description
Technical field
The present invention relates to a kind of low NOXCombustor, belongs to a kind of gas-fired equipment technical field.
Background technology
Existing gas-fired equipment, send into combustion head by combustion gas after mainly being mixed with air to burn, its index mainly examined includes incomplete combustion and the harmful gas that produces, including the waste gas that can cause PM2.5, solution to this problem is a lot of at present, the method the most just including carrying out second-time burning, but owing to current gas-fired equipment there is no that what way solved air and combustion gas is sufficiently mixed problem, the problems such as the unbalanced problem of combustion head flame and premixed combustion isothermal, thus actually do not have the efficiency of combustion for gas-fired equipment and play a decisive role.
Summary of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, and a kind of simple in construction is provided, easy to use, air and combustion gas can be made to burn by being sufficiently mixed, it is achieved combustion head flame is harmonious, solve the low NO of the problems such as burning isothermalXCombustor.
It is an object of the invention to complete by following technical solution, a kind of low NOXCombustor, it include one be placed in burner hearth in carry out the combustion head of ignition, described combustion head is made up of fire grate and flame stabilization pipe, is provided with the cooling water cooling passageway controlling flame combustion temperature on described fire grate and flame stabilization pipe；Described combustion head connects one with the combustion gas of blower fan and air mixer, described combustion gas enters the combustion gas and air mixer being connected by gas regulator, and send into equivalent pressure cavity through blower fan carry out mixing match in combustion gas and air mixer with air after, described equivalent pressure cavity is directly connected to combustion head.
As preferably: described combustion head be each provided with a hydroecium up and down, wherein it is provided with cooling water inlet on a water inlet hydroecium, it is provided with a coolant outlet on water outlet hydroecium, connects cooling fire grate and the cooling water cooling passageway of flame stabilization pipe between described water inlet hydroecium and water outlet hydroecium respectively and be accurately controlled flame combustion temperature at 1400+-50 DEG C by loop control；By a number of diameter, < aperture of 1mm forms described fire grate, and constitutes an aperture narrow slit fire grate that can solve the problem that premixed combustion tempering problem.
The present invention has simple in construction, easy to use, and air and combustion gas can be made to burn by being sufficiently mixed, it is achieved the features such as combustion head flame is harmonious, and it preferably solves the problems such as burning isothermal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, the low NO of one of the present inventionXCombustor, it include one be placed in burner hearth in carry out the combustion head 1 of ignition, described combustion head 1 is made up of fire grate and flame stabilization pipe, is provided with the cooling water cooling passageway controlling flame combustion temperature on described fire grate and flame stabilization pipe；Described combustion head 1 connects one with the combustion gas of blower fan 3 and air mixer 4 by equivalent pressure cavity 2, described combustion gas 5 enters the combustion gas and air mixer 4 being connected by gas regulator 6, and send into equivalent pressure cavity 2 through blower fan 3 after carrying out mixing match with air in combustion gas and air mixer 4, described equivalent pressure cavity 2 it is directly connected to combustion head 1.It is provided with air intlet 15 in combustion gas and air mixer 4.
Shown in figure, described combustion head 1 be each provided with a hydroecium up and down, wherein it is provided with cooling water inlet 8 on a water inlet hydroecium 7, it is provided with a coolant outlet 10 on water outlet hydroecium 9, connects cooling fire grate and the cooling water cooling passageway of flame stabilization pipe between described water inlet hydroecium 7 and water outlet hydroecium 9 respectively and be accurately controlled flame combustion temperature at 1400+-50 DEG C by loop control；By a number of diameter, < aperture of 1mm forms described fire grate, and constitutes an aperture narrow slit fire grate that can solve the problem that premixed combustion tempering problem.Fuel gas inlet 11, gas filter 12, pressure maintaining valve 13, gas valve group 14 is also included shown in figure.
Embodiment: combustion gas, air mixture ratio are sent into equivalent pressure cavity by blower fan after being introduced into blender mixing by gas control valve, blower fan frequency, the control of fan delivery regulation valve, two kinds of gases, then entered hearth combustion by combustion head；
Combustion head is made up of fire grate, flame stabilization pipe, and fire grate and flame stabilization pipe have cooling water cooling, cooling water by loop control, to be accurately controlled flame combustion temperature at 1400+-50 DEG C；Combustion head uses fire grate technology, and fire grate is made up of the aperture of a number of diameter ＜ 1mm, the problem that aperture narrow slit technology successfully solves premixed combustion tempering；
Premixed combustion of the present invention significantly solves burning isothermal problem, the problem that water cooling solves nitrogen oxides synthesis；Realize 20-100% proportion stably to burn；
The present invention can be according to principles of fluid mechanics, utilize computer aided calculation software, utilize at equivalent pressure cavity and change the aperture of porous plate, pitch-row, the plane of a basic equipressure is established in porous plate outlet, mixed gas unstable for fan outlet fluidised form is evenly distributed on fire grate import cross section by after porous plate, it is achieved that the harmony of combustion head flame.
Claims (2)
1. a low NOXCombustor, it include one be placed in burner hearth in carry out the combustion head of ignition, it is characterised in that described combustion head is made up of fire grate and flame stabilization pipe, is provided with the cooling water cooling passageway controlling flame combustion temperature on described fire grate and flame stabilization pipe；Described combustion head connects one with the combustion gas of blower fan and air mixer, described combustion gas enters the combustion gas and air mixer being connected by gas regulator, and send into equivalent pressure cavity through blower fan carry out mixing match in combustion gas and air mixer with air after, described equivalent pressure cavity is directly connected to combustion head.
Low NO the most according to claim 1XCombustor, it is characterized in that described combustion head is each provided with a hydroecium up and down, wherein it is provided with cooling water inlet on a water inlet hydroecium, it is provided with a coolant outlet on water outlet hydroecium, connects cooling fire grate and the cooling water cooling passageway of flame stabilization pipe between described water inlet hydroecium and water outlet hydroecium respectively and be accurately controlled flame combustion temperature at 1400+-50 DEG C by loop control；By a number of diameter, < aperture of 1mm forms described fire grate, and constitutes an aperture narrow slit fire grate that can solve the problem that premixed combustion tempering problem.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226514.8A CN105889918B (en) | 2016-04-13 | 2016-04-13 | A kind of low NOXCombustor |
| EP17165975.8A EP3232133A1 (en) | 2016-04-13 | 2017-04-11 | A low nox burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226514.8A CN105889918B (en) | 2016-04-13 | 2016-04-13 | A kind of low NOXCombustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105889918A true CN105889918A (en) | 2016-08-24 |
| CN105889918B CN105889918B (en) | 2018-07-31 |
Family
ID=57013171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610226514.8A Active CN105889918B (en) | 2016-04-13 | 2016-04-13 | A kind of low NOXCombustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889918B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575868A (en) * | 2017-10-18 | 2018-01-12 | 力聚热力设备科技有限公司 | Air supply plant in slit-aperture type flame combustion apparatus |
| CN107588421A (en) * | 2017-10-18 | 2018-01-16 | 力聚热力设备科技有限公司 | A kind of slit-aperture type flame combustion apparatus |
| CN107606615A (en) * | 2017-10-18 | 2018-01-19 | 力聚热力设备科技有限公司 | Combustor in slit-aperture type flame combustion apparatus |
| CN109442401A (en) * | 2018-09-30 | 2019-03-08 | 江苏双良锅炉有限公司 | A kind of low NO of film-type water-coolingxGas combustion apparatus |
| CN109538506A (en) * | 2018-10-12 | 2019-03-29 | 江西中船航海仪器有限公司 | A kind of premix blower fan system certainly |
| CN110068011A (en) * | 2019-05-10 | 2019-07-30 | 无锡顺盟科技有限公司 | A kind of plane cool flame low NO |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011520088A (en) * | 2008-04-30 | 2011-07-14 | コーエン カンパニー インコーポレイテッド | Low NOx burner |
| CN202647759U (en) * | 2012-07-02 | 2013-01-02 | 福州三力厨房设备有限公司 | Efficient energy-saving environment protection gas burning machine |
| CN202747357U (en) * | 2012-09-07 | 2013-02-20 | 樱花卫厨（中国）股份有限公司 | Full-premixing combustor cooling device for gas water heater |
| CN203010598U (en) * | 2012-12-17 | 2013-06-19 | 厦门市百特威机电设备有限公司 | Gas combustion machine |
| CN104266186A (en) * | 2014-09-28 | 2015-01-07 | 力聚热力设备科技有限公司 | Gas staged combustion super-low nitrogen oxide emission combustor |
| CN204438118U (en) * | 2015-01-13 | 2015-07-01 | 天津城建大学 | The fully premixed burner of water-cooled |
| CN205560735U (en) * | 2016-04-13 | 2016-09-07 | 力聚热力设备科技有限公司 | Low NOX combustor |
-
2016
- 2016-04-13 CN CN201610226514.8A patent/CN105889918B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011520088A (en) * | 2008-04-30 | 2011-07-14 | コーエン カンパニー インコーポレイテッド | Low NOx burner |
| CN202647759U (en) * | 2012-07-02 | 2013-01-02 | 福州三力厨房设备有限公司 | Efficient energy-saving environment protection gas burning machine |
| CN202747357U (en) * | 2012-09-07 | 2013-02-20 | 樱花卫厨（中国）股份有限公司 | Full-premixing combustor cooling device for gas water heater |
| CN203010598U (en) * | 2012-12-17 | 2013-06-19 | 厦门市百特威机电设备有限公司 | Gas combustion machine |
| CN104266186A (en) * | 2014-09-28 | 2015-01-07 | 力聚热力设备科技有限公司 | Gas staged combustion super-low nitrogen oxide emission combustor |
| CN204438118U (en) * | 2015-01-13 | 2015-07-01 | 天津城建大学 | The fully premixed burner of water-cooled |
| CN205560735U (en) * | 2016-04-13 | 2016-09-07 | 力聚热力设备科技有限公司 | Low NOX combustor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575868A (en) * | 2017-10-18 | 2018-01-12 | 力聚热力设备科技有限公司 | Air supply plant in slit-aperture type flame combustion apparatus |
| CN107588421A (en) * | 2017-10-18 | 2018-01-16 | 力聚热力设备科技有限公司 | A kind of slit-aperture type flame combustion apparatus |
| CN107606615A (en) * | 2017-10-18 | 2018-01-19 | 力聚热力设备科技有限公司 | Combustor in slit-aperture type flame combustion apparatus |
| CN109442401A (en) * | 2018-09-30 | 2019-03-08 | 江苏双良锅炉有限公司 | A kind of low NO of film-type water-coolingxGas combustion apparatus |
| CN109538506A (en) * | 2018-10-12 | 2019-03-29 | 江西中船航海仪器有限公司 | A kind of premix blower fan system certainly |
| CN110068011A (en) * | 2019-05-10 | 2019-07-30 | 无锡顺盟科技有限公司 | A kind of plane cool flame low NO |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105889918B (en) | 2018-07-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181212 Address after: 313200 Shengye Street, Wukang Town, Deqing County, Hangzhou City, Zhejiang Province, 150 Patentee after: Zhejiang Li Ju thermal energy equipment Co., Ltd. Address before: 313000 No. 150, Sheng Ye street, Wu Kang Town, Deqing County, Huzhou, Zhejiang. Patentee before: LIJU THERMAL POWER EQUIPMENT CO., LTD. |
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| TR01 | Transfer of patent right |