CN211424377U - Fuel oil atomization system and combustion furnace comprising same - Google Patents
Fuel oil atomization system and combustion furnace comprising same Download PDFInfo
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- CN211424377U CN211424377U CN202020039100.6U CN202020039100U CN211424377U CN 211424377 U CN211424377 U CN 211424377U CN 202020039100 U CN202020039100 U CN 202020039100U CN 211424377 U CN211424377 U CN 211424377U
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Abstract
The utility model provides a fuel atomization system and combustion furnace that contains this fuel atomization system for it is relatively poor to solve the power plant with coal fired boiler fuel atomization system atomization effect, need prevent frostbite and hydrophobic winter, problem that the maintenance volume is big. A fuel atomization system comprising: the system comprises a gas explosion atomizing oil gun, a fuel oil pipeline, a fuel oil valve, an air-entrapping pipeline, a compressed air valve, a steam pipeline and a steam valve; one end of the fuel pipeline is communicated with an oil inlet of the oil gun, the other end of the fuel pipeline is communicated with the fuel supply pipeline, and a fuel valve is arranged on the fuel pipeline; one end of the gas filling pipeline is communicated with a gas inlet of the oil gun, the other end of the gas filling pipeline is divided into two paths, one path is communicated with one end of the steam pipeline, and the other path is communicated with one end of the compressed gas pipeline; the other end of the steam pipeline is connected with a steam supply pipeline, and a steam valve is arranged on the steam pipeline; the other end of the compressed gas pipeline is communicated with a compressed gas supply pipeline; the compressed air valve is arranged on the compressed air pipeline.
Description
Technical Field
The utility model relates to a fire the burning furnace field, concretely relates to fuel atomization system and contain burning furnace that fires of this fuel atomization system.
Background
At present, the international oil price is continuously increased, the start-stop cost of a boiler is higher and higher, and the requirements for saving oil during start-stop are urgent. At present, mechanical pressure type atomizing oil guns or Y-shaped steam atomizing oil guns are mostly adopted by lean coal boilers of thermal power plants in China to realize ignition and combustion supporting of the boilers, the fuel consumption is high, particularly when the boilers are low-load oil feeding and combustion supporting, the fuel oil is remarkable, great fuel oil waste is caused, and certain environmental protection emission risks exist. Traditional mechanical pressure formula atomizing oil gun or "Y" type steam atomizing oil gun atomization effect is relatively poor, and the distribution is inhomogeneous moreover, and atomization effect is showing when especially the oil pressure reduces and is reducing, has the black cigarette phenomenon of smoking when the cold furnace is igniteed, and the fuel consumption of oil gun is big. In addition, steam which is mostly adopted by oil gun atomization of the conventional coal-fired boiler for the power plant is used as an atomized steam source, and is required to be prevented from freezing and drained in winter, so that the maintenance amount is large, the energy consumption is high, and once a pipeline is blocked or broken, the boiler can not work normally.
SUMMERY OF THE UTILITY MODEL
To the problem and the defect that exist among the prior art, the utility model provides a fire oil atomizing system and contain this fire oil atomizing system's burning furnace that fires is used for solving the power plant with coal fired boiler fire oil atomizing system atomization effect relatively poor, need prevent frostbite and hydrophobic winter, the problem that the maintenance volume is big.
In view of the above problems and disadvantages, a first aspect of the present invention is to provide a fuel atomization system for a combustion furnace, comprising: gas explosion atomizing oil gun still includes: the system comprises a fuel oil pipeline, a fuel valve, an air charging pipeline, a compressed air valve, a steam pipeline and a steam valve;
one end of the fuel pipeline is communicated with an oil inlet of the oil gun, the other end of the fuel pipeline is communicated with a fuel supply pipeline, and the fuel valve is installed on the fuel pipeline;
one end of the gas filling pipeline is communicated with a gas inlet of the oil gun, the other end of the gas filling pipeline is divided into two paths, one path is communicated with one end of the steam pipeline, and the other path is communicated with one end of the compressed gas pipeline;
the other end of the steam pipeline is connected with a steam supply pipeline, and the steam valve is arranged on the steam pipeline;
the other end of the compressed gas pipeline is communicated with a compressed gas supply pipeline; the compressed air valve is arranged on the compressed air pipeline.
As an example of the utility model, the fuel atomization system still includes the air entrainment main valve, the air entrainment main valve sets up on the air entrainment pipeline.
As an example of the present invention, the fuel atomization system further includes a purging pipeline and a purging valve, the purging pipeline has one end connected to the air-entrapping pipeline and the other end connected to the fuel pipeline, and the purging valve is installed on the purging pipeline.
As an example of the present invention, the purging pipeline is further provided with a throttle orifice plate, and the throttle orifice plate is provided with a throttle orifice.
As an example of the present invention, one end of the purging pipeline is communicated with the main air-entrapping valve deviating from the air-entrapping pipeline on one side of the air inlet of the oil gun.
As an example of the utility model, the other end intercommunication of sweeping the pipeline is in the fuel valve with between the oil gun oil inlet on the fuel pipeline.
As an example of the present invention, the orifice plate is disposed between the purge valve and the fuel pipeline on the purge pipeline.
The second aspect of the utility model is to provide a combustion furnace, including the furnace body, still include above-mentioned arbitrary fuel atomization system.
The fuel oil atomization system and the combustion furnace containing the fuel oil atomization system adopt the gas explosion atomization oil gun to carry out fuel oil atomization, and the surface tension of fuel oil is destroyed in the atomization process, so the energy consumption is small, the atomization granularity is fine, and the size distribution is uniform, therefore, the fuel oil is fully combusted, and no black smoke is emitted; in addition, due to the structural characteristics, the air holes are large and the number of the holes is large, so that the phenomena of coking, blockage and black smoke emission caused by ignition of a cooling furnace are not easy to occur. The pollutants in the combustion products are small and lower than various indexes specified by the national environmental protection bureau, and the energy-saving and environmental-protection requirements advocated by the nation are met. Additionally the utility model discloses the gas filling pipe among the fuel atomization system is linked together with compressed gas pipeline and steam conduit, can realize steam atomization and the atomizing arbitrary switching of compressed gas, can fast switch over under the frozen, the jam condition of steam conduit and adopt compressed air to realize atomizing, provides the powerful assurance for the normal operating of firing burning furnace.
Drawings
The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:
FIG. 1 is a simplified diagram of the installation of the fuel atomization system and the combustion furnace of the present invention;
FIG. 2 is a schematic view of the installation of the orifice plate on the purge line.
Reference numerals
11 gas explosion atomizing oil gun
12 fuel oil pipeline
121 fuel valve
13 air-entrapping pipeline
131 air-filling main valve
14 compressed gas pipeline
141 compressed air valve
15 steam pipeline
151 steam valve
16 purge line
161 purge valve
162 orifice plate
1621 orifice
20 furnace body
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only schematic and illustrate the basic idea of the present invention, and although the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation, the form, quantity and proportion of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
Example one
As shown in fig. 1 to 2, the present embodiment provides a fuel atomization system for a coal-fired boiler of a power plant, including: the gas explosion atomizing oil gun 11 further comprises: the fuel pipeline 12, the fuel valve 121, the gas filling pipeline 13, the compressed gas pipeline 14, the compressed gas valve 141, the steam pipeline 15 and the steam valve 151;
one end of the fuel pipeline 12 is communicated with an oil inlet of an oil gun, the other end of the fuel pipeline 12 is communicated with a fuel supply pipeline, and the fuel valve 121 is installed on the fuel pipeline 12;
one end of the gas filling pipeline 13 is communicated with a gas inlet of the oil gun, and the other end of the gas filling pipeline is divided into two paths, wherein one path is communicated with one end of the steam pipeline 15, and the other path is communicated with one end of the compressed gas pipeline 14;
the other end of the steam pipeline 15 is connected with a steam supply pipeline, and the steam valve 151 is arranged on the steam pipeline 15;
the other end of the compressed gas pipeline 14 is communicated with a compressed gas supply pipeline; the compressed air valve 141 is disposed on the compressed air pipe 14.
It should be noted that the gas explosion atomizing oil gun 11 of the present invention is an existing device and can be obtained by general commercial means, and the detailed structure and atomizing principle are not described herein again.
The fuel oil atomization system of the utility model adopts the gas explosion atomization oil gun 11 to atomize fuel oil, and the surface tension of the fuel oil is destroyed in the atomization process, so the energy consumption is small, the atomization granularity is fine, and the size distribution is uniform, therefore, the fuel oil is fully combusted, and no black smoke is emitted; in addition, due to the structural characteristics, the air holes are large and the number of the holes is large, so that the phenomena of coking, blockage and black smoke emission caused by ignition of a cooling furnace are not easy to occur. Additionally the utility model discloses the gas filling pipe among the fuel atomization system is linked together with compressed gas pipeline 14 and steam conduit, can realize steam atomization and the atomizing arbitrary switching of compressed gas, can fast switch over under the frozen, the jam condition of steam conduit and adopt compressed air to realize atomizing, provides powerful assurance for the normal operating of firing burning furnace.
The utility model discloses in also can not set up air entrainment main valve 131, and realize closing of air entrainment pipeline 13 through closing simultaneously compressed gas valve 141 and steam valve 151, nevertheless preferably, as the utility model discloses an example, in this embodiment the fuel atomization system still includes air entrainment main valve 131, air entrainment main valve 131 sets up on the air entrainment pipeline 13.
As an example of the present invention, the fuel atomization system further includes a purging pipeline 16 and a purging valve 161, the purging pipeline 16 has one end connected to the air-entrapping pipeline 13 and the other end connected to the fuel pipeline 12, and the purging valve 161 is installed on the purging pipeline 16. The purging pipeline 16 is used for blowing out residual fuel oil and combustion residues in the oil gun in the shutdown process of the oil gun, so that the oil gun is ensured to be in a good standby state, and the phenomena that an oil injection hole of the oil gun is blocked and poor in ignition and the like when the oil gun is used again are prevented.
As an example of the present invention, the purging pipeline 16 is further provided with a throttle orifice 162, and the throttle orifice 162 is provided with a throttle hole 1621. The orifice 1621 not only saves the air flow, but also increases the speed of the air flow passing through the purge, thereby achieving a better purge effect.
The utility model discloses well sweeping pipeline 16 and gas entrainment pipeline 13's intercommunication position can not do the injecion, nevertheless conduct the utility model discloses an example, the one end intercommunication that sweeps pipeline 16 is in gas entrainment main valve 131 deviates from on the gas entrainment pipeline 13 of oil gun air inlet one side, can also sweep work, convenient and fast more after gas entrainment main valve 131 closes like this.
As an example of the present invention, the other end of the purge line 16 communicates with the fuel valve 121 and the fuel line 12 between the oil inlet of the oil gun.
As an example of the present invention, the orifice plate 162 is disposed on the purge line 16 between the purge valve 161 and the fuel line 12.
Example two
As shown in fig. 1, the present embodiment provides a combustion furnace, which includes a furnace body 20 and further includes the fuel atomization system described in the first embodiment. The utility model discloses fire burning furnace, because of adopting the fuel oil atomization system in the embodiment one, so the pollutant is little in the combustion products, is less than each item index that national environmental protection agency stipulated, accords with the energy-concerving and environment-protective requirement that the country advocated.
Comparative example
Will the utility model discloses well fuel oil atomizing system is applied to 700MW boiler (German BABCOCK (BABCOCK) company and makes) and carries out the effect contrast, before the transformation, the boiler once cold start combustion-supporting oil quantity is about 120 tons, warm attitude start fuel quantity is about 80 tons, hot attitude start fuel quantity is about 40 tons, start-up cost is higher to the maintenance cost is higher winter. According to the utility model discloses fire burning furnace after the method improves, cold state starts combustion-supporting oil quantity about 80 tons, warm state starts fuel quantity about 50 tons, hot state starts fuel quantity about 30 tons, light a fire under the cold state, its combustion efficiency can both guarantee to be greater than or equal to 99.5%, furnace flame is bright penetrating, the flame colour is wheat gold, the chimney does not emit black cigarette, the chimney export is smokeless, tasteless, the smoke and dust discharges blackness and is less than linggeman 1 level, be superior to the requirement of national environmental protection, it is obvious not only that the burning furnace that from this is seen to reform transform fuel saving effect but also pollutant is little in the combustion products, be less than each item index that the national environmental protection agency stipulated, accord with the energy-concerving and environment-protective requirement. In addition, after being reformed, compressed air can be adopted for atomization in winter, and special maintenance is not needed.
In summary, the fuel oil atomization system and the combustion furnace of the utility model have small energy consumption, fine atomization granularity and even size distribution, therefore, the fuel oil is fully combusted, and no black smoke is emitted; in addition, due to the structural characteristics, the air holes are large and the number of the holes is large, so that the phenomena of coking, blockage and black smoke emission caused by ignition of a cooling furnace are not easy to occur. The pollutants in the combustion products are small and lower than various indexes specified by the national environmental protection bureau, and the energy-saving and environmental-protection requirements advocated by the nation are met. Additionally the utility model discloses the gas filling pipe among the fuel atomization system is linked together with compressed gas pipeline and steam conduit, can realize steam atomization and the atomizing arbitrary switching of compressed gas, can fast switch over under the frozen, the jam condition of steam conduit and adopt compressed air to realize atomizing, provides the powerful assurance for the normal operating of firing burning furnace. Therefore, the utility model discloses thereby effectively overcome some practical problems among the prior art and had very high use value and use meaning.
The above-described embodiments are merely illustrative of the principles of the present invention and its efficacy, rather than limiting the same, and various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the invention, such modifications and variations all falling within the scope of the appended claims.
Claims (8)
1. A fuel atomization system for a combustion furnace, comprising: gas explosion atomizing oil gun, its characterized in that still includes: the system comprises a fuel oil pipeline, a fuel valve, an air charging pipeline, a compressed air valve, a steam pipeline and a steam valve;
one end of the fuel pipeline is communicated with an oil inlet of the oil gun, the other end of the fuel pipeline is communicated with a fuel supply pipeline, and the fuel valve is installed on the fuel pipeline;
one end of the gas filling pipeline is communicated with a gas inlet of the oil gun, the other end of the gas filling pipeline is divided into two paths, one path is communicated with one end of the steam pipeline, and the other path is communicated with one end of the compressed gas pipeline;
the other end of the steam pipeline is connected with a steam supply pipeline, and the steam valve is arranged on the steam pipeline;
the other end of the compressed gas pipeline is communicated with a compressed gas supply pipeline; the compressed air valve is arranged on the compressed air pipeline.
2. The fuel atomization system of claim 1, wherein: the fuel oil atomization system further comprises a main gas filling valve, and the main gas filling valve is arranged on the gas filling pipeline.
3. The fuel atomization system of claim 2 further comprising a purge line and a purge valve, the purge line being in communication with the air entrainment line at one end and the fuel line at the other end, the purge valve being mounted on the purge line.
4. The fuel atomization system of claim 3, wherein the purge line is further provided with a restriction orifice, and the restriction orifice is provided with a restriction orifice.
5. The fuel atomization system of claim 3, wherein one end of the purge line communicates with a gas filling line on a side of the main gas filling valve facing away from the gas inlet of the oil gun.
6. The fuel atomization system of claim 3 wherein the other end of the purge conduit communicates with the fuel conduit between the fuel valve and the oil gun inlet.
7. The fuel atomization system of claim 4 wherein the orifice plate is disposed on the purge line between the purge valve and the fuel line.
8. A combustion furnace comprising a furnace body and further comprising the fuel atomization system of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020039100.6U CN211424377U (en) | 2020-01-08 | 2020-01-08 | Fuel oil atomization system and combustion furnace comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020039100.6U CN211424377U (en) | 2020-01-08 | 2020-01-08 | Fuel oil atomization system and combustion furnace comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211424377U true CN211424377U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020039100.6U Active CN211424377U (en) | 2020-01-08 | 2020-01-08 | Fuel oil atomization system and combustion furnace comprising same |
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| Country | Link |
|---|---|
| CN (1) | CN211424377U (en) |
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- 2020-01-08 CN CN202020039100.6U patent/CN211424377U/en active Active
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