CN110925755B - Steam power generation boiler burner - Google Patents
Steam power generation boiler burner Download PDFInfo
- Publication number
- CN110925755B CN110925755B CN201911284272.8A CN201911284272A CN110925755B CN 110925755 B CN110925755 B CN 110925755B CN 201911284272 A CN201911284272 A CN 201911284272A CN 110925755 B CN110925755 B CN 110925755B
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- Prior art keywords
- pipe
- burner
- combustion
- flow control
- gas flow
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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
- F23D14/02—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
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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
- F23D14/46—Details, e.g. noise reduction means
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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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
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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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The embodiment of the invention discloses a steam power generation boiler burner, which comprises a combustion pipe and a burner outer pipe, wherein a combustion gas flow control pipe is arranged in the burner outer pipe and is connected with a combustion gas inlet pipe, and a conical valve is arranged on the combustion gas flow control pipe; the outer pipe of the burner is also provided with a heating burner and a combustion-supporting gas inlet pipe; therefore, when the burner is used, gas enters the burner outer pipe through the combustion gas inlet pipe and is in the combustion gas flow control pipe, the combustion gas flow control pipe can control the gas inflow amount of the gas, and the gas can generate an umbrella-shaped gas curtain when passing through the conical valve on the combustion gas flow control pipe, so that the gas curtain is fully mixed and combusted with the air introduced from the combustion gas inlet pipe, and the heating burner can keep the stability of the working states of the combustion pipe and the burner outer pipe.
Description
Technical Field
The invention relates to a burner, in particular to a steam power generation boiler burner.
Background
Conventional steam power generation boiler for increase the temperature of furnace, the mode that often adopts is to the inside combustion air of a large amount of drums into of furnace and coal gas burns, this phenomenon that just produces local high temperature easily, and the too high condition of local temperature causes the output of nitrogen oxide and dioxin to increase easily, is unfavorable for present high-pressure situation environmental protection requirement. In order to avoid the above problems, the combustion of the combustion air and the gas is more complete, and a steam power generation boiler burner is needed to solve the problems.
Disclosure of Invention
In order to solve the technical problems, embodiments of the present invention provide a steam power generation boiler burner, which can mix coal gas and combustion air more sufficiently by providing a conical valve, and improve safety and reliability of a boiler by heating the burner.
In order to achieve the purpose, the technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a steam power generation boiler burner, which comprises a combustion pipe and a burner outer pipe which are communicated with each other, wherein a combustion gas flow control pipe is arranged inside the burner outer pipe, an inlet of the combustion gas flow control pipe is connected with a combustion gas inlet pipe arranged outside the burner outer pipe, an outlet of the combustion gas flow control pipe is arranged in the combustion pipe, and a conical valve is arranged on the outlet of the combustion gas flow control pipe;
and the outer pipe of the burner is also provided with a heating burner and a combustion-supporting gas inlet pipe.
In the embodiment of the invention, the heating burner comprises a normally open gas pipe and an ignition burner which are sequentially connected, wherein an ignition port of the ignition burner is positioned in an outer pipe of the burner.
In an embodiment of the present invention, a burner cavity end cover is provided on the burner outer tube, and a flame observation port is provided on the burner cavity end cover, wherein the flame observation port is located between the heating burner and the combustion gas flow control tube at a position corresponding to the burner cavity end cover.
In the embodiment of the present invention, a regulating valve is provided in the combustion gas flow control pipe, and a drive control part of the regulating valve is provided on the combustor chamber end cover outside the combustor outer pipe.
In the embodiment of the invention, the pipe orifice of the combustion-supporting gas inlet pipe is provided with the gas inlet adjusting plate, the gas inlet adjusting plate is rotatably connected with the inner wall of the pipe orifice of the combustion-supporting gas inlet pipe, and the outer wall of the combustion-supporting gas inlet pipe is provided with the adjusting handle for controlling the rotation angle of the gas inlet adjusting plate.
In the embodiment of the invention, a pipeline is arranged on the conical valve, and an energy storage plate is arranged on the pipe wall of the pipeline.
In the embodiment of the invention, the inner wall of the combustion tube is also provided with a stable combustion rod.
The embodiment of the invention provides a steam power generation boiler burner, which comprises a combustion pipe and a burner outer pipe which are communicated with each other, wherein a combustion gas flow control pipe is arranged inside the burner outer pipe, an inlet of the combustion gas flow control pipe is connected with a combustion gas inlet pipe arranged outside the burner outer pipe, an outlet of the combustion gas flow control pipe is arranged in the combustion pipe, and a conical valve is arranged on the outlet of the combustion gas flow control pipe; the outer pipe of the burner is also provided with a heating burner and a combustion-supporting gas inlet pipe; like this, when using, coal gas passes through combustion gas advances the pipe and enters into inside the combustor outer tube in the combustion gas flow control is intraductal, when using, the air input of coal gas can be controlled to combustion gas flow control pipe, and coal gas passes through on the combustion gas flow control pipe during the cone valve, can produce the gas curtain that is the umbrella form, thereby with follow the combustion gas advances the leading-in air intensive mixing burning of pipe, the heating combustor can be before the combustor uses, right the combustion tube with the inside of combustor outer tube is heated, also can keep when the combustor uses the combustion tube with the stability of combustor outer tube internal working condition.
Drawings
Fig. 1 is a schematic structural diagram of a steam power generation boiler burner according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The temperature of the boiler hearth of the steam boiler is increased due to the large space, which has certain difficulty, and in addition, evaporation water pipes for absorbing heat are distributed in the boiler hearth. The water temperature in the water pipe directly influences the hearth temperature, the temperature of the water in the water pipe must be increased firstly to increase the hearth temperature, the temperature of the water in the steam packet is included, the specific heat capacity of the water is much larger than that of other substances, and therefore the steam boiler needs hours from the normal temperature to the normal production temperature. The internal combustion type combustion mode can well solve the problem. The internal combustion type burner is not influenced by the temperature of a hearth, a high-temperature environment suitable for combustion can be quickly built inside the burner, and the burner is small in size and free of the problem of water pipe heat absorption, so that the burner can be lifted to over 700 ℃ within ten minutes, the temperature of flame is increased at the highest speed, and the chemical reaction of fuel is accelerated. Most of the fuel gas is burnt in the burner, burnt waste gas is sprayed into the furnace, and the burnt waste gas forms huge temperature difference with the water pipe due to higher temperature, so that heat transfer is facilitated. Meanwhile, the temperature of the flue can be reduced, the load of a flue heat exchanger is reduced, and the heat loss is also reduced.
In order to increase the temperature of the hearth, the conventional steam power generation boiler usually adopts a mode of blowing a large amount of combustion-supporting air and coal gas into the hearth for combustion, so that the phenomenon of overhigh local temperature is easily generated, and the production of nitrogen oxides and dioxin is easily increased under the condition of overhigh local temperature, which is not favorable for the environmental protection requirement of the current high-pressure situation. Based on the above situation, the above problems are solved by controlling the temperature of the steam boiler, and a novel mode of precisely controlling the combustor by steam is provided to solve the problems.
The embodiment of the invention provides a steam power generation boiler burner, which comprises a combustion pipe 1 and a burner outer pipe 2 which are communicated with each other, wherein a combustion gas flow control pipe 3 is arranged inside the burner outer pipe 2, an inlet of the combustion gas flow control pipe 3 is connected with a combustion gas inlet pipe 4 arranged outside the burner outer pipe 2, an outlet of the combustion gas flow control pipe 3 is arranged in the combustion pipe 1, and a conical valve 5 is arranged on the outlet of the combustion gas flow control pipe 3;
the burner outer pipe 2 is also provided with a heating burner 6 and a combustion-supporting gas inlet pipe 7.
Here, as shown in fig. 1, the combustion pipe 1 and the burner outer pipe 2 are each cylindrical, wherein the diameter of the burner outer pipe 2 is larger than the diameter of the combustion pipe 1. The burner outer tube 2 comprises a tube wall and the burner cavity end cap 21.
And the wall of the outer burner tube 2 is provided with the combustion gas inlet tube 4 and the combustion-supporting gas inlet tube 7. The mouth of pipe of combustion-supporting gas inlet pipe 7 sets up air inlet adjusting plate 71, air inlet adjusting plate 71 with combustion-supporting gas inlet pipe 7's mouth of pipe inner wall rotates and is connected, just combustion-supporting gas inlet pipe 7's outer wall is gone up and is set up and is used for controlling air inlet adjusting plate 71 turned angle's adjustment handle 72.
The combustor is characterized in that the combustion gas flow control pipe 3 is arranged in the combustor outer pipe 2, the combustion gas inlet pipe 4 communicated with an external gas source is arranged on the combustion gas flow control pipe 3, the outlet of the combustion gas flow control pipe 3 supplies gas to the combustion pipe 1, the conical valve 5 is arranged on the outlet of the combustion gas flow control pipe 3, the conical valve 5 is in a frustum shape, and when the gas passes through the conical valve 5, the gas can be discharged in an umbrella shape, so that the contact area with air is increased. Further, the conical valve 5 is also provided with the pipeline, and the energy storage plate 51 is arranged on the pipeline. The regulating valve 31 is further provided inside the combustion gas flow rate control pipe 3, and the drive control means of the regulating valve 31 is provided on the combustor chamber end cover 21 outside the combustor outer pipe 2. Specifically, the drive control means of the adjusting valve 31 includes an air-fuel ratio adjusting nut and an adjusting screw which is mounted between the combustion gas flow rate control pipe 3 and the combustor chamber end cover 21, and the adjusting nut is mounted on the adjusting screw.
Still set up on the pipe wall of combustor outer tube 2 heating combustor 6, heating combustor 6 is including the normal open flame gas pipe 61 and the ignition nozzle 62 that connect gradually, wherein, normal open flame gas pipe 61 to ignition nozzle 62 carries coal gas, and ignition nozzle 62's ignition mouth is located inside combustor outer tube 2, and be used for the heating the inside of combustion tube 1 and burning outer tube, specifically, heating combustor 6 is including the normal open flame gas pipe 61, the little ball valve of coal gas regulation, connecting wire connector and the ignition nozzle 62 that connect gradually.
Further, a burner cavity end cover 21 is provided on the burner outer tube 2, and a flame observation port 22 is provided on the burner cavity end cover 21, wherein the flame observation port 22 is located at a position between the heating burner 6 and the combustion gas flow control tube 3 corresponding to the burner cavity end cover 21.
Further, a combustion stabilizing rod is arranged on the inner wall of the combustion tube 1.
When the gas burner is used, the conical valve 5 changes the running direction of gas to form a closed conical gas curtain, and combustion-supporting air passes through the gas curtain from the combustion pipe 1, so that the problem of sufficient mixing of the combustion-supporting air and the gas is solved.
A plurality of the stable combustion rods are arranged in the combustion pipe 1, and the effect of further stirring the fuel gas is achieved. Meanwhile, the high-temperature gas generated by flame combustion increases the temperature of the flame stabilizing rod, and forms a high-temperature environment which is very suitable for combustion reaction with the pipe wall of the combustion pipe 1, so that the flame combustion is quicker and more stable.
The burner in the embodiment of the invention accelerates the gas combustion speed, and simultaneously improves the combustion temperature of flame, so that the gas is more fully combusted, the utilization rate of the gas is improved, and the gas resource is saved. The field observation shows that the combustion flame at the outlet of the combustion burner with increased power gradually changes from purple blue to orange red.
The combustor in the embodiment of the invention has good combustion effect and high flame temperature, and puts high requirements on the material of the whole structure. As a material of the combustion pipe 1, high-strength heat-resistant stainless steel is used in particular. So that a gap is arranged between the burner shell and the outer wall of the combustion tube 1 to form an annular channel. Under the action of the pressure of the combustion-supporting fan, redundant combustion-supporting air penetrates into the furnace from the annular channel, so that the combustion pipe 1 is cooled on one hand, and is preheated by the combustion pipe 1 and meets and burns with excessive coal gas in the furnace, and the secondary air supply effect is achieved. The service life of the combustion pipe 1 can be more than two years.
The burner nozzle in the embodiment of the invention is also provided with a normally open fire ignition nozzle 62 (namely the heating burner 6), so that the burner always keeps a normally open and non-extinguishing ignition fire source, thereby improving the safety and reliability of the power generation boiler.
The burner in the embodiment of the invention solves the problems of fire dropping, difficult ignition and easy extinguishment which cannot be solved by other old burner products.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (6)
1. The steam power generation boiler burner is characterized by comprising a combustion pipe (1) and a burner outer pipe (2) which are communicated with each other, wherein a combustion gas flow control pipe (3) is arranged inside the burner outer pipe (2), an inlet of the combustion gas flow control pipe (3) is connected with a combustion gas inlet pipe (4) arranged outside the burner outer pipe (2), an outlet of the combustion gas flow control pipe (3) is arranged in the combustion pipe (1), and a conical valve (5) is arranged on the outlet of the combustion gas flow control pipe (3);
a heating burner (6) and a combustion-supporting gas inlet pipe (7) are also arranged on the burner outer pipe (2);
the heating burner (6) comprises a normally open fire gas pipe (61) and an ignition burner (62) which are connected in sequence, wherein an ignition port of the ignition burner (62) is positioned inside the burner outer pipe (2).
2. A steam power boiler burner according to claim 1, characterized in that a burner cavity end cover (21) is provided on the burner outer tube (2), and a flame observation port (22) is provided on the burner cavity end cover (21), wherein the flame observation port (22) is located at a position corresponding to the burner cavity end cover (21) between the heating burner (6) and the combustion gas flow control tube (3).
3. A steam power generation boiler burner as set forth in claim 2, characterized in that a regulating valve (31) is provided in the combustion gas flow control pipe (3), and drive control means of the regulating valve (31) is provided on the burner cavity end cover (21) outside the burner outer pipe (2).
4. The steam power generation boiler burner as recited in claim 1, wherein an air inlet adjusting plate (71) is disposed at a nozzle of the combustion-supporting gas inlet pipe (7), the air inlet adjusting plate (71) is rotatably connected with an inner wall of the nozzle of the combustion-supporting gas inlet pipe (7), and an adjusting handle (72) for controlling a rotation angle of the air inlet adjusting plate (71) is disposed on an outer wall of the combustion-supporting gas inlet pipe (7).
5. A steam power boiler burner according to claim 1, characterized in that the conical valve (5) is provided with a pipe, the pipe wall of which is provided with an energy accumulating plate (51).
6. A steam power boiler burner as in claim 1, characterized by that, the inner wall of the burning tube (1) is also provided with a stabilizer bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911284272.8A CN110925755B (en) | 2019-12-13 | 2019-12-13 | Steam power generation boiler burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911284272.8A CN110925755B (en) | 2019-12-13 | 2019-12-13 | Steam power generation boiler burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110925755A CN110925755A (en) | 2020-03-27 |
| CN110925755B true CN110925755B (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911284272.8A Active CN110925755B (en) | 2019-12-13 | 2019-12-13 | Steam power generation boiler burner |
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| Country | Link |
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| CN (1) | CN110925755B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792326A (en) * | 2020-12-28 | 2021-05-14 | 何骞 | Cross-flow and mixed-flow torpedo ladle baking device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869515A (en) * | 2006-05-23 | 2006-11-29 | 王志祥 | Internal combustion blast furnace special gas nozzle with cone fluidic device |
| CN201526966U (en) * | 2009-11-05 | 2010-07-14 | 王志祥 | Special burner used for circular internal combustion type blast-furnace gas power generation boiler and provided with cone fluidic device |
| CN104613474A (en) * | 2015-02-05 | 2015-05-13 | 湖南吉祥石化科技股份有限公司 | Bottom-mounted type NOx discharging circular flame gas burner |
| CN107062222A (en) * | 2017-05-24 | 2017-08-18 | 江苏师范大学 | A kind of miniature boiler burner |
| CN207880835U (en) * | 2018-02-05 | 2018-09-18 | 和烁（张家港）热能设备有限公司 | A kind of burner for waste heat boiler |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7163392B2 (en) * | 2003-09-05 | 2007-01-16 | Feese James J | Three stage low NOx burner and method |
| US8007681B2 (en) * | 2008-04-25 | 2011-08-30 | Shell Oil Company | Methods, compositions, and burner systems for reducing emissions of carbon dioxide gas into the atmosphere |
| CN201306716Y (en) * | 2008-10-22 | 2009-09-09 | 宝山钢铁股份有限公司 | Coke-oven gas ignition burner |
| CN201443762U (en) * | 2009-06-24 | 2010-04-28 | 樊金鑫 | Flame adjusting rotational flow gas-fired combustor |
| CN203190411U (en) * | 2012-12-12 | 2013-09-11 | 江西中船航海仪器有限公司 | Combined gas burner |
| CN108758633A (en) * | 2018-07-13 | 2018-11-06 | 深圳市佳运通电子有限公司 | Full automatic high efficiency neat gas burner |
-
2019
- 2019-12-13 CN CN201911284272.8A patent/CN110925755B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869515A (en) * | 2006-05-23 | 2006-11-29 | 王志祥 | Internal combustion blast furnace special gas nozzle with cone fluidic device |
| CN201526966U (en) * | 2009-11-05 | 2010-07-14 | 王志祥 | Special burner used for circular internal combustion type blast-furnace gas power generation boiler and provided with cone fluidic device |
| CN104613474A (en) * | 2015-02-05 | 2015-05-13 | 湖南吉祥石化科技股份有限公司 | Bottom-mounted type NOx discharging circular flame gas burner |
| CN107062222A (en) * | 2017-05-24 | 2017-08-18 | 江苏师范大学 | A kind of miniature boiler burner |
| CN207880835U (en) * | 2018-02-05 | 2018-09-18 | 和烁（张家港）热能设备有限公司 | A kind of burner for waste heat boiler |
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| CN110925755A (en) | 2020-03-27 |
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