CN108413606B - High-efficiency oil-fired boiler - Google Patents
High-efficiency oil-fired boiler Download PDFInfo
- Publication number
- CN108413606B CN108413606B CN201810220584.1A CN201810220584A CN108413606B CN 108413606 B CN108413606 B CN 108413606B CN 201810220584 A CN201810220584 A CN 201810220584A CN 108413606 B CN108413606 B CN 108413606B
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- Prior art keywords
- boiler
- smoke
- side wall
- barrel
- heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention relates to the technical field of boiler equipment, in particular to a high-efficiency oil-fired boiler, which comprises a boiler body, a hearth, a burner and a boiler barrel, wherein the side wall of the boiler body is of a multi-layer structure, the side wall of the boiler body sequentially comprises an outer heat insulation layer, a dosing cavity and an inner heat insulation layer from outside to inside, and a plurality of spray heads are arranged on the inner side surface of the inner heat insulation layer; the boiler is characterized in that a heating chamber is arranged in the boiler body, a smoke circulation cavity is formed between the outer side wall of the heating chamber and the inner heat insulation layer, a U-shaped circulating smoke pipe is arranged in the boiler barrel, one end of the U-shaped circulating smoke pipe penetrates through the side wall of the boiler barrel and is communicated with the smoke discharge chamber, the other end of the U-shaped circulating smoke pipe penetrates through the side wall of the boiler barrel and is communicated with the smoke circulation cavity, and a plurality of radiating fins are arranged on the U-shaped circulating smoke pipe along the pipe wall. The beneficial effects are that: the efficiency of the oil-fired boiler is improved, and the running cost is saved. And then, nitrogen oxides and the like in the flue gas are treated, so that the pollution of the flue gas to the air is reduced, and the environment is protected.
Description
Technical Field
The invention relates to the technical field of boiler equipment, in particular to a high-efficiency oil-fired boiler.
Background
For a long time, coal is always used as a main energy source in China, and a large amount of coal-fired boilers are used, so that soot type air pollution is formed, especially in haze weather which occurs more recently, and the energy policy and the energy structure of China are further promoted to be transformed as soon as possible.
The use amount of the boiler for coal-fired chemical industry in China is huge, and the boiler is an important pollution source in haze weather in China, so that the boiler policy for changing industrial or domestic coal-fired boilers into fuel oil or natural gas is recently formulated in some large and medium cities in China, the outstanding contradiction between the coal-fired boiler and the environment can be solved, and the boiler is more suitable for the fuel oil boiler to replace the existing coal-fired boiler under the background of paving various petroleum inlet pipelines in China.
The oil-fired boiler is a boiler using fuel oil, and comprises oil plants such as diesel oil, waste oil and the like. The oil-fired boiler comprises an oil-fired boiled water boiler, an oil-fired hot water boiler, an oil-fired heating boiler, an oil-fired bath boiler, an oil-fired steam boiler and the like, has the advantages of economy, environmental protection and the like, and is convenient to use compared with a common gas boiler. Along with the development of economy and the improvement of society and the improvement of people on environmental protection consciousness, the coal-fired boiler gradually gets away from the sight of people due to serious pollution, and is a novel environmental-friendly oil-fired boiler instead.
Most of the hearths of the existing oil-fired boilers are horizontal hearths, the hearths are arranged in the boiler barrel, however, the temperature rising speed of the boiler is low, the waste heat of smoke cannot be fully utilized, the heat efficiency is low, and the running cost is indirectly increased. In addition, most of the current oil-fired boilers directly discharge the flue gas, which is not beneficial to environmental protection.
Disclosure of Invention
The invention aims to solve the problems and provides a high-efficiency oil-fired boiler.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the high-efficiency oil-fired boiler comprises a boiler body, a hearth, a burner and a boiler barrel, wherein the hearth and the boiler barrel are arranged in the boiler body, the burner is arranged outside the boiler body and is communicated with the hearth, the side wall of the boiler body is of a multi-layer structure, the side wall of the boiler body sequentially comprises an outer heat insulation layer, a dosing cavity and an inner heat insulation layer from outside to inside, and a plurality of spray heads are arranged on the inner side surface of the inner heat insulation layer; a heating chamber is arranged in the boiler body, a smoke circulation cavity is formed between the outer side wall of the heating chamber and the inner heat insulation layer, the hearth is arranged at the bottom of the heating chamber, the boiler barrel is arranged above the hearth, a smoke exhaust chamber is formed by the side wall of the boiler barrel and the inner wall of the heating chamber, and a smoke exhaust port of the hearth is communicated with the smoke exhaust chamber;
the boiler is characterized in that a U-shaped circulating smoke pipe is arranged in the boiler barrel, one end of the U-shaped circulating smoke pipe penetrates through the side wall of the boiler barrel and is communicated with the smoke exhaust chamber, the other end of the U-shaped circulating smoke pipe penetrates through the side wall of the boiler barrel and is communicated with the smoke circulation cavity, and a plurality of radiating fins are arranged on the U-shaped circulating smoke pipe along the pipe wall.
Preferably, the boiler barrel comprises an L-shaped heat conducting plate, and the heat conducting plate is fixedly connected with the inner wall of the heating chamber and forms the boiler barrel with the inner wall of the heating chamber.
Preferably, a heat flow cavity is arranged in the radiating fin, and the heat flow cavity is communicated with the pipe cavity of the U-shaped circulating smoke pipe.
Preferably, a plurality of arc-shaped convection grooves are formed in the inner wall of the radiating fin, and a plurality of radiating protrusions are formed on the outer side surface of the radiating fin.
Preferably, the heat exchange tubes are spirally wound on the outer wall of the hearth, and both ends of each heat exchange tube are communicated with the boiler barrel.
Preferably, a waste water tank is arranged at the bottom of the boiler body, and the waste water tank is communicated with the smoke circulation cavity.
Preferably, the boiler body is provided with a smoke discharge port, and the smoke discharge port is communicated with the smoke circulation cavity.
Preferably, the boiler body is provided with a dosing valve communicated with the dosing cavity.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the hearth and the boiler barrel are arranged in the heating chamber to form a closed space, and the boiler barrel is directly heated by the high temperature generated by the hearth. The flue gas is discharged to the U-shaped circulation tobacco pipe after being generated from the hearth, the waste heat of the flue gas is circularly heated in the pipe, the heat radiating area is increased through the heat radiating fins, the heating speed is improved, the waste heat of the flue gas is fully utilized, the efficiency of the oil-fired boiler is improved, and the operation cost is saved. And secondly, the flue gas enters the flue gas circulation cavity after being utilized, and is neutralized with liquid sprayed by the spray head, so that nitrogen oxides and the like in the flue gas are treated, the pollution of the flue gas to air is reduced, and the environment is protected.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the drum of the present invention;
fig. 3 is a schematic structural view of a heat sink.
In the figure: the boiler comprises a boiler body 1, a hearth 2, a burner 3, a boiler barrel 4, an outer heat insulation layer 5, a dosing cavity 6, an inner heat insulation layer 7, a spray head 8, a heating chamber 9, a smoke circulation cavity 10, a smoke exhaust chamber 11, a smoke exhaust port 12, a 13U-shaped circulating smoke pipe 14, a radiating fin 15, a heat conduction plate 16, a heat flow cavity 17, a convection groove 18, a radiating protrusion 19, a heat exchange pipe 20, a waste water tank 21 and a smoke exhaust port.
Description of the embodiments
The technical scheme of the invention is further described and illustrated by the following specific examples.
This embodiment is shown in fig. 1, 2 and 3: the utility model provides a high-efficient oil fired boiler, includes square boiler body 1, furnace 2, combustor 3 and a boiler section of thick bamboo 4, furnace 2 and a boiler section of thick bamboo 4 all set up in the boiler body 1, the combustor 3 install in outside the boiler body 1 and with furnace 2 intercommunication.
A sealed heating chamber 9 is arranged in the boiler body 1, and the side wall of the heating chamber 9 is also made of heat insulation materials. A smoke circulation cavity 10 is formed between the outer side wall of the heating chamber 9 and the inner heat insulation layer 7, the hearth 2 is arranged at the bottom in the heating chamber 9, the boiler barrel 4 is arranged above the hearth 2, a smoke exhaust chamber 11 is formed by the side wall of the boiler barrel 4 and the inner wall of the heating chamber 9, and a smoke exhaust port 12 of the hearth 2 is communicated with the smoke exhaust chamber 11.
The boiler barrel 4 comprises an L-shaped heat conducting plate 15, and the heat conducting plate 15 is fixedly connected with the inner wall of the heating chamber 9 and forms the boiler barrel 4 with the inner wall of the heating chamber 9. A U-shaped circulating smoke pipe 13 is arranged in the boiler barrel 4, one end of the U-shaped circulating smoke pipe 13 penetrates through the heat conducting plate 15 and is communicated with the smoke discharging chamber 11, and the other end penetrates through the side wall of the heating chamber 9 and is communicated with the smoke circulating cavity 10. The flue gas generated by the hearth 2 is discharged into the flue gas chamber 11 from the flue gas outlet 12, and the flue gas in the flue gas chamber 11 enters the U-shaped circulating flue pipe 13 for circulation under the pushing of heat flow, and finally enters the flue gas circulation cavity 10.
The side wall of the boiler body 1 is of a multi-layer structure, and the side wall of the boiler body 1 sequentially comprises an outer heat insulation layer 5, a dosing cavity 6 and an inner heat insulation layer 7 from outside to inside. The double heat insulation layers of the invention isolate the heat in the boiler from the outside, and prevent heat conduction.
A plurality of spray heads 8 are arranged on the inner side surface of the inner heat insulation layer 7, the spray heads 8 are communicated with the dosing cavity 6, after a dosing valve arranged outside the boiler body 1 is opened, liquid medicine is introduced into the dosing cavity 6, and the liquid medicine is sprayed on smoke flowing into the smoke circulation cavity 10 for neutralization reaction. The bottom of the boiler body 1 is provided with a waste water tank 20, and the waste water tank 20 is communicated with the flue gas circulation cavity 10. The neutralized liquid medicine flows from the flue gas circulation cavity 10 to the waste water tank 20, and the waste water is sucked out by a pump for subsequent treatment.
The boiler body 1 is provided with a smoke discharge port 21, and the smoke discharge port 21 is communicated with the smoke circulation cavity 10. The flue gas is discharged after being treated. A plurality of spray heads 8 may be provided at one side of the fume exhaust port 21 to prevent untreated fume from being exhausted.
The heat exchange tubes 19 are spirally wound on the outer wall of the hearth 2, and two ends of each heat exchange tube 19 penetrate through the heat conducting plate 15 and are communicated with the inner cavity of the boiler barrel 4. The heat exchange tubes 19 are directly coated on the hearth 2, can directly absorb heat, has the highest heating speed, and can directly absorb heat generated by the hearth as much as possible.
In order to provide the heating speed and fully utilize the waste heat of the flue gas, a plurality of cooling fins 14 are arranged on the U-shaped circulating smoke pipe 13 along the pipe wall, a heat flow cavity 16 is arranged in the cooling fins 14, and the heat flow cavity 16 is communicated with the pipe cavity of the U-shaped circulating smoke pipe 13. The radiating fins 14 increase the radiating area, are distributed at all parts in the boiler barrel 4 along the pipe wall on the U-shaped circulating smoke pipe 13, and are uniformly heated to accelerate the temperature rising speed.
In order to make the flue gas smoothly circulate, a plurality of arc-shaped convection grooves 17 are provided on the inner wall of the heat sink 14, and a plurality of heat dissipating protrusions 18 are formed on the outer side surface of the heat sink 14. The heat dissipating protrusions 18 increase the heat dissipating area.
According to the invention, the hearth 2 and the boiler barrel 4 are arranged in the heating chamber 9 to form a closed space, and the boiler barrel 4 is directly heated by the high temperature generated by the hearth 2. The flue gas is discharged to the U-shaped circulation tobacco pipe 13 after being generated from the hearth 2, the waste heat of the flue gas is circularly heated in the pipe, the heat radiating area is increased through the heat radiating fins 14, the heating speed is improved, the waste heat of the flue gas is fully utilized, the efficiency of the fuel oil boiler is improved, and the operation cost is saved. And secondly, the flue gas enters the flue gas circulation cavity 10 after being utilized, and is neutralized with liquid sprayed by the spray head 8, so that nitrogen oxides and the like in the flue gas are treated, the pollution of the flue gas to the air is reduced, and the environment is protected.
The foregoing is merely a preferred embodiment of the present invention, and does not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention as set forth in the appended claims.
Claims (6)
1. The utility model provides a high-efficient oil fired boiler, includes boiler body (1), furnace (2), combustor (3) and drum (4), furnace (2) and drum (4) all set up in boiler body (1), combustor (3) install in outside boiler body (1) and with furnace (2) intercommunication, its characterized in that:
the side wall of the boiler body (1) is of a multi-layer structure, the side wall of the boiler body (1) sequentially comprises an outer heat insulation layer (5), a dosing cavity (6) and an inner heat insulation layer (7) from outside to inside, and a plurality of spray heads (8) are arranged on the inner side surface of the inner heat insulation layer (7); a heating chamber (9) is arranged in the boiler body (1), a smoke circulation cavity (10) is formed between the outer side wall of the heating chamber (9) and the inner heat insulation layer (7), the hearth (2) is arranged at the bottom in the heating chamber (9), the boiler barrel (4) is arranged above the hearth (2), a smoke exhaust chamber (11) is formed by the side wall of the boiler barrel (4) and the inner wall of the heating chamber (9), and a smoke exhaust port (12) of the hearth (2) is communicated with the smoke exhaust chamber (11);
a U-shaped circulating smoke pipe (13) is arranged in the boiler barrel (4), one end of the U-shaped circulating smoke pipe (13) penetrates through the side wall of the boiler barrel (4) to be communicated with the smoke discharging chamber (11), the other end of the U-shaped circulating smoke pipe penetrates through the side wall of the boiler barrel (4) to be communicated with the smoke circulating cavity (10), and a plurality of cooling fins (14) are arranged on the U-shaped circulating smoke pipe (13) along the pipe wall;
the boiler barrel (4) comprises an L-shaped heat conducting plate (15), and the heat conducting plate (15) is fixedly connected with the inner wall of the heating chamber (9) and forms the boiler barrel (4) with the inner wall of the heating chamber (9);
the heat exchange tube (19) is spirally wound on the outer wall of the hearth (2), and two ends of the heat exchange tube (19) are communicated with the boiler barrel (4).
2. A high efficiency oil burning boiler according to claim 1, characterized in that the heat radiating fin (14) is provided with a heat flow cavity (16) inside, and the heat flow cavity (16) is communicated with the tube cavity of the U-shaped circulation smoke tube (13).
3. A high efficiency oil fired boiler according to claim 2, wherein a plurality of arc-shaped convection grooves (17) are provided on the inner wall of the fin (14), and a plurality of heat radiation protrusions (18) are formed on the outer side of the fin (14).
4. A high efficiency oil fired boiler according to claim 1, characterised in that the bottom of the boiler body (1) is provided with a waste water tank (20), the waste water tank (20) being in communication with the flue gas flow-through chamber (10).
5. A high efficiency oil fired boiler according to claim 1, characterised in that the boiler body (1) is provided with a flue gas discharge opening (21), said flue gas discharge opening (21) being in communication with the flue gas flow through chamber (10).
6. A high efficiency oil fired boiler according to claim 1, characterised in that the boiler body (1) is provided with a dosing valve in communication with the dosing chamber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220584.1A CN108413606B (en) | 2018-03-16 | 2018-03-16 | High-efficiency oil-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220584.1A CN108413606B (en) | 2018-03-16 | 2018-03-16 | High-efficiency oil-fired boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108413606A CN108413606A (en) | 2018-08-17 |
| CN108413606B true CN108413606B (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810220584.1A Active CN108413606B (en) | 2018-03-16 | 2018-03-16 | High-efficiency oil-fired boiler |
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| Country | Link |
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| CN (1) | CN108413606B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631329B (en) * | 2018-12-03 | 2020-12-18 | 嘉兴米世电器有限公司 | Gas and oil boiler |
| CN110486935A (en) * | 2019-07-15 | 2019-11-22 | 中节能(宿迁)生物质能发电有限公司 | A kind of biomass power generation Waste-heat boiler device |
| CN113654071A (en) * | 2021-08-26 | 2021-11-16 | 江苏博格锅炉设备有限公司 | Boiler capable of utilizing waste heat and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040098305A (en) * | 2003-05-14 | 2004-11-20 | 최진민 | Heat exchanging systems of boiler and boiler structures using them |
| CN101701746A (en) * | 2009-11-20 | 2010-05-05 | 中国科学技术大学 | Small-sized efficient fuel gas/fuel oil boiler |
| JP2012247137A (en) * | 2011-05-27 | 2012-12-13 | Mitsubishi Heavy Ind Ltd | Boiler structure, and method of converting boiler |
| CN203980317U (en) * | 2014-07-22 | 2014-12-03 | 江苏双良锅炉有限公司 | NO_x Reduction by Effective multitubular boiler |
| CN204555300U (en) * | 2015-03-26 | 2015-08-12 | 朴哲宇 | Horizontal burner hearth is arranged on the oil burning boiler of drum outside |
-
2018
- 2018-03-16 CN CN201810220584.1A patent/CN108413606B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040098305A (en) * | 2003-05-14 | 2004-11-20 | 최진민 | Heat exchanging systems of boiler and boiler structures using them |
| CN101701746A (en) * | 2009-11-20 | 2010-05-05 | 中国科学技术大学 | Small-sized efficient fuel gas/fuel oil boiler |
| JP2012247137A (en) * | 2011-05-27 | 2012-12-13 | Mitsubishi Heavy Ind Ltd | Boiler structure, and method of converting boiler |
| CN203980317U (en) * | 2014-07-22 | 2014-12-03 | 江苏双良锅炉有限公司 | NO_x Reduction by Effective multitubular boiler |
| CN204555300U (en) * | 2015-03-26 | 2015-08-12 | 朴哲宇 | Horizontal burner hearth is arranged on the oil burning boiler of drum outside |
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| Publication number | Publication date |
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| CN108413606A (en) | 2018-08-17 |
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Address after: 314000 No. 1036 Wenhai North Road, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province (self declared) Patentee after: Zhejiang Tefu Development Co.,Ltd. Address before: 314000 No. 36 Qichao Road, Chang'an Town (Nongfa District), Haining City, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG TUFF BOILER Co.,Ltd. |