CN108626883A - Coil pipe multilayer furnace wall efficient energy-saving heating stove - Google Patents
Coil pipe multilayer furnace wall efficient energy-saving heating stove Download PDFInfo
- Publication number
- CN108626883A CN108626883A CN201810527424.1A CN201810527424A CN108626883A CN 108626883 A CN108626883 A CN 108626883A CN 201810527424 A CN201810527424 A CN 201810527424A CN 108626883 A CN108626883 A CN 108626883A
- Authority
- CN
- China
- Prior art keywords
- furnace wall
- middle level
- coil pipe
- furnace
- flue gas
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000003546 flue gas Substances 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims description 7
- 230000002411 adverse Effects 0.000 claims description 3
- 238000004939 coking Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
- F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
-
- 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
- F24H9/001—Guiding means
- F24H9/0026—Guiding means in combustion gas channels
- F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of coil pipe multilayer furnace wall efficient energy-saving heating stove.The multilayer furnace wall of efficient energy-saving heating stove includes internal layer furnace wall, middle level furnace wall, outer layer furnace wall.Flue gas baffling block is set on furnace wall.Burner burns in innermost layer furnace wall generates high-temperature flue gas, and high-temperature flue gas rises in internal layer furnace wall, baffling after rising at the top of the furnace wall of middle level, flue gas downlink and coil heat exchange between middle level furnace wall and internal layer furnace wall after baffling;Downlink flue gas furnace wall bottom baffling in middle level, rises between outer layer furnace wall and middle level furnace wall, and with coil heat exchange, flue gas rises to convection cell by outer layer furnace wall flue gas, through smoke stack emission in convection cell and after coil heat exchange.Heated medium is introduced into convection cell, and the coil pipe of spiral is entered after convection cell heat exchange.The present invention has multilayer furnace wall, can improve the heat exchange area of furnace body, and then improve the thermic load of heating furnace, can also improve furnace sealing, reduce furnace body radiation loss;Heated coil is more uniform, and medium is not easy coking in coil pipe.
Description
Technical field
The invention belongs to heating furnace technical fields, are related to a kind of coil pipe multilayer furnace wall efficient energy-saving heating stove.
Background technology
Among petrochemical industry process, heating furnace is most basic, essential equipment.Heating furnace is petrochemical industry dress
Important heating equipment, huge energy consumption in setting.Furnace energy consumption is reduced, improving the thermal efficiency has important economic benefit and environmental protection
Benefit.Existing heating furnace radiation chamber coil pipe is directly washed away by flame mostly, leads to that heated coil is uneven, easy coking, serious to limit
Heating furnace continuous operating time processed shortens heating furnace service life, it is safe to use to endanger heating furnace.
The load of heat of heating furnace directly determines the working ability of petrochemical equipment, therefore, in the feelings of comparable size structure
Under condition, improving the thermic load of heating furnace is particularly important.According to current scientific technological advance present situation, with petrochemical industry heating furnace
Thermic load it is closely bound up be coil pipe heat exchange area.Heating furnace heat-transfer area can be improved in coil pipe multilayer furnace wall efficient energy-saving heating stove
Product, larger thermic load is obtained with smaller floor space.
Invention content
The present invention is directed to overcome the shortage of prior art, a kind of spiral coil multilayer furnace wall efficient energy-saving heating stove is provided.It should
Heating furnace good airproof performance, radiation loss is small, heat transfer efficiency is high, be heated evenly, is not easy that coking, floor space is small, thermic load is high
Advantage.
In order to achieve the above object, the technical solution adopted by the present invention is:
A kind of coil pipe multilayer furnace wall efficient energy-saving heating stove, including burner 1, multilayer furnace wall, coil pipe 5, convection cell 6, cigarette
Chimney 7.
The multilayer furnace wall is located at furnace interior, is arranged below convection cell 6, be followed successively by from the inside to the outside internal layer furnace wall 2,
Middle level furnace wall 3, outer layer furnace wall 4, three layers of furnace wall are cylindrical shape or rectangular;Flue gas baffling block is set on furnace wall;Internal layer furnace wall 2
Between middle level furnace wall 3, coil pipe 5 is equipped between middle level furnace wall 3 and outer layer furnace wall 4, for exchanging heat.
2 open top of internal layer furnace wall, bottom is fixed on furnace bottom.3 top closure of middle level furnace wall, bottom are logical
It crosses support element and is fixed on furnace bottom;Internal layer furnace wall 2 is located inside middle level furnace wall 3, and there are spaces between the two top, for passing through height
Warm flue gas.4 top sealing structure of outer layer furnace wall, enclosuring structure are equipped with an opening, connect with the pipeline in convection cell 6
It is logical, for receiving the medium in convection cell 6;4 bottom of outer layer furnace wall is fixed on furnace bottom;Middle level furnace wall 3 is located in outer layer furnace wall 4
Portion, there are spaces, 3 bottom end of middle level furnace wall to be communicated with the space between outer layer furnace wall 4 between the two top.
The coil pipe 5 is helical structure, setting 5 top of coil pipe between furnace wall 3 and outer layer furnace wall 4 and convection current in middle level
Chamber interior piping connection, the part coil pipe 5 spiral downwards between outer layer furnace wall 4 and middle level furnace wall 3, are screwed into close to after furnace bottom,
Radius of turn slowly becomes smaller, and the coil pipe 5 after radius of turn becomes smaller is upward along the space between internal layer furnace wall 2 and middle level furnace wall 3
It spirals.It is threaded to enter concetrated pipe at the top of the furnace wall of middle level.
The burner 1 is arranged in the energy-efficient heating furnace bottom of multilayer furnace wall, is connected to internal layer furnace wall 2, burner 1
Burning generates high-temperature flue gas in innermost layer furnace wall 2, and high-temperature flue gas rises in internal layer furnace wall 2, rises to 3 top of middle level furnace wall
Baffling afterwards, high-temperature flue gas downlink between middle level furnace wall 3 and internal layer furnace wall 2 exchanges heat with coil pipe 5 after baffling;During downlink flue gas passes through
Layer 3 bottom space of furnace wall rises between outer layer furnace wall 4 and middle level furnace wall 3, is changed with coil pipe 5 in uphill process in furnace bottom baffling
Heat.Last flue gas rises to convection cell 6 by 4 flue gas of outer layer furnace wall, is discharged through chimney 7 in convection cell and after the heat exchange of coil pipe 5.Quilt
Heat medium is introduced into convection cell 6, after the heat exchange of convection cell 6, into the coil pipe 5 of spiral.It is flow to furnace bottom along coil pipe 5, this process
In with flue gas adverse current exchange heat;Medium along coil pipe flow to furnace bottom after spiral coil between internal layer furnace wall and middle level furnace wall to upstream
It is dynamic, export furnace body after flowing to top concetrated pipe.
Beneficial effects of the present invention are:Since the present invention has multilayer furnace wall, the leakproofness of furnace body is greatly improved, is made
Furnace body operation is more stablized.Multilayer furnace wall can reduce the radiation loss of furnace body.Since coil pipe is not directly by flame impingement, coil pipe by
Heat is more uniform, and medium is not easy coking in coil pipe.Multilayer coil pipe in furnace body substantially increases the heat exchange area of furnace body, improves
The thermic load of heating furnace.
Description of the drawings
Fig. 1 is the sectional view of the present invention;
Fig. 2 is the graphics of coil pipe of the present invention;
Fig. 3 is the three dimensional sectional view of the present invention;
In figure:1 burner;2 internal layer furnace walls;3 middle level furnace walls;4 outer layer furnace walls;5 coil pipes;6 convection cells;7 chimneys.
Specific implementation mode
Below in conjunction with technical solution and attached drawing, specific embodiments of the present invention are described in detail.
A kind of coil pipe multilayer furnace wall efficient energy-saving heating stove, including burner 1, multilayer furnace wall, coil pipe 5, convection cell 6, cigarette
Chimney 7.
The multilayer furnace wall is located at furnace interior, is arranged below convection cell 6, be followed successively by from the inside to the outside internal layer furnace wall 2,
Middle level furnace wall 3, outer layer furnace wall 4, three layers of furnace wall are cylindrical shape, and three is concentric in arbitrary cross section;Internal layer furnace wall 2 and middle level stove
Between wall 3, coil pipe 5 is equipped between middle level furnace wall 3 and outer layer furnace wall 4, for exchanging heat.
2 open top of internal layer furnace wall, bottom is fixed on furnace bottom.3 top closure of middle level furnace wall, bottom are logical
It crosses support element and is fixed on furnace bottom;Internal layer furnace wall 2 is located inside middle level furnace wall 3, and there are spaces between the two top, for passing through height
Warm flue gas.4 top sealing structure of outer layer furnace wall, enclosuring structure are equipped with an opening, connect with the pipeline in convection cell 6
It is logical, for receiving the medium in convection cell 6;4 bottom of outer layer furnace wall is fixed on furnace bottom;Middle level furnace wall 3 is located in outer layer furnace wall 4
Portion, there are spaces, 3 bottom end of middle level furnace wall to be communicated with the space between outer layer furnace wall 4 between the two top.
The coil pipe 5 is helical structure, setting 5 top of coil pipe between furnace wall 3 and outer layer furnace wall 4 and convection current in middle level
Chamber interior piping connection, the part coil pipe 5 spiral downwards between outer layer furnace wall 4 and middle level furnace wall 3, are screwed into close to after furnace bottom,
Radius of turn slowly becomes smaller, and the coil pipe 5 after radius of turn becomes smaller is upward along the space between internal layer furnace wall 2 and middle level furnace wall 3
It spirals.It is threaded to enter concetrated pipe at the top of the furnace wall of middle level.
The burner 1 is arranged in the energy-efficient heating furnace bottom of multilayer furnace wall, is connected to internal layer furnace wall 2, burner 1
Burning generates high-temperature flue gas in innermost layer furnace wall 2, and high-temperature flue gas rises in internal layer furnace wall 2, rises to 3 top of middle level furnace wall
Baffling afterwards, high-temperature flue gas downlink between middle level furnace wall 3 and internal layer furnace wall 2 exchanges heat with coil pipe 5 after baffling;During downlink flue gas passes through
Layer 3 bottom space of furnace wall rises between outer layer furnace wall 4 and middle level furnace wall 3, is changed with coil pipe 5 in uphill process in furnace bottom baffling
Heat.Last flue gas rises to convection cell 6 by 4 flue gas of outer layer furnace wall, is discharged through chimney 7 in convection cell and after the heat exchange of coil pipe 5.Quilt
Heat medium is introduced into convection cell 6, after the heat exchange of convection cell 6, into the coil pipe 5 of spiral.It is flow to furnace bottom along coil pipe 5, this process
In with flue gas adverse current exchange heat;Medium along coil pipe flow to furnace bottom after spiral coil between internal layer furnace wall and middle level furnace wall to upstream
It is dynamic, export furnace body after flowing to top concetrated pipe.
Embodiments of the present invention above described embodiment only expresses, but therefore can not be interpreted as special to the present invention
The limitation of the range of profit, it is noted that for those skilled in the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made, these are all belonged to the scope of protection of the present invention.
Claims (1)
1. a kind of coil pipe multilayer furnace wall efficient energy-saving heating stove, which is characterized in that the coil pipe multilayer furnace wall is energy-efficient to be added
Hot stove includes burner (1), multilayer furnace wall, coil pipe (5), convection cell (6), chimney (7);
The multilayer furnace wall is located at furnace interior, multilayer furnace wall be followed successively by from the inside to the outside internal layer furnace wall (2), middle level furnace wall (3),
Outer layer furnace wall (4), three layers of furnace wall are cylindrical shape or rectangular;Flue gas baffling block is set on furnace wall;Internal layer furnace wall (2) and middle level
Between furnace wall (3), coil pipe (5) is equipped between middle level furnace wall (3) and outer layer furnace wall (4), for exchanging heat;
Described internal layer furnace wall (2) open top, bottom is fixed on furnace bottom;Described middle level furnace wall (3) top closure, bottom are logical
It crosses support element and is fixed on furnace bottom;Internal layer furnace wall (2) is located inside middle level furnace wall (3), and there are spaces between the two top, for leading to
Cross high-temperature flue gas;It is enclosuring structure at the top of the outer layer furnace wall (4), enclosuring structure is equipped with an opening, for receiving convection current
Medium in room (6);Outer layer furnace wall (4) bottom is fixed on furnace bottom;Middle level furnace wall (3) is located at outer layer furnace wall (4) inside, the two top
There are space between end, the space between middle level furnace wall (3) bottom end and outer layer furnace wall (4) communicates;
The coil pipe (5) is helical structure, setting in middle level at the top of coil pipe (5) between furnace wall (3) and outer layer furnace wall (4) and
Convection cell (6) internal duct connects, which spirals downwards between outer layer furnace wall (4) and middle level furnace wall (3), revolves
To close to after furnace bottom, radius of turn slowly becomes smaller, radius of turn become smaller after coil pipe (5) along internal layer furnace wall (2) and middle level stove
It spirals upwards in space between wall (3);It is threaded to enter concetrated pipe at the top of middle level furnace wall (3);
The burner (1) is arranged in the energy-efficient heating furnace bottom of multilayer furnace wall, is connected to internal layer furnace wall (2), burner
(1) burning generates high-temperature flue gas in innermost layer furnace wall (2), and high-temperature flue gas rises in internal layer furnace wall (2), rises to middle level stove
Baffling after at the top of wall (3), high-temperature flue gas downlink between middle level furnace wall (3) and internal layer furnace wall (2) is changed with coil pipe (5) after baffling
Heat;Downlink flue gas by middle level furnace wall (3) bottom space in furnace bottom baffling, between outer layer furnace wall (4) and middle level furnace wall (3) on
It rises, exchanges heat with coil pipe (5) in uphill process;Last flue gas rises to convection cell (6) by outer layer furnace wall (4) flue gas, in convection cell
It is discharged through chimney (7) after the heat exchange of interior and coil pipe (5);Heated medium is introduced into convection cell (6), after convection cell (6) heat exchange, into
Enter the coil pipe (5) of spiral;It is flow to furnace bottom along coil pipe (5), this exchanges heat with flue gas adverse current in the process;Medium is after coil pipe flow to furnace bottom
Spiral coil between internal layer furnace wall and middle level furnace wall flows up, and furnace body is exported after flowing to top concetrated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527424.1A CN108626883A (en) | 2018-05-26 | 2018-05-26 | Coil pipe multilayer furnace wall efficient energy-saving heating stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527424.1A CN108626883A (en) | 2018-05-26 | 2018-05-26 | Coil pipe multilayer furnace wall efficient energy-saving heating stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108626883A true CN108626883A (en) | 2018-10-09 |
Family
ID=63690629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527424.1A Withdrawn CN108626883A (en) | 2018-05-26 | 2018-05-26 | Coil pipe multilayer furnace wall efficient energy-saving heating stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108626883A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140834A (en) * | 2020-01-15 | 2020-05-12 | 西安交通大学 | A three-coil gas flue gas turbulent heat exchange device and method |
| CN112161264A (en) * | 2020-07-06 | 2021-01-01 | 广东万和热能科技有限公司 | Full premixed heat exchange combustion system and combustion equipment |
| CN113606566A (en) * | 2021-08-27 | 2021-11-05 | 扬州大唐热能机械制造有限公司 | Flame pressure type water pipe boiler |
| CN119289343A (en) * | 2024-11-26 | 2025-01-10 | 江苏省特种设备安全监督检验研究院 | An inner and outer double-layer heat storage boiler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2013710C1 (en) * | 1991-12-17 | 1994-05-30 | Борис Викторович Белевич | Contact surface water heater |
| US6381963B1 (en) * | 2000-11-02 | 2002-05-07 | Ethopower Corporation Inc. | High temperature intermittently sealable refractory tile and controlled air continuous gasifiers manufactured therewith |
| CN2572291Y (en) * | 2002-09-10 | 2003-09-10 | 陈建华 | Pipe type gas and oil combustion boiler |
| DE102010006892A1 (en) * | 2010-02-05 | 2011-08-11 | Kneifel, Sven, 76337 | Device for heating of natural gas, has coil, by which natural gas is guided, and has inlet and outlet for natural gas, where coil forms two concentric arranged cylinders |
| CN102794444A (en) * | 2011-05-20 | 2012-11-28 | 气体产品与化学公司 | Heating method and system for controlling air ingress into enclosed spaces |
| CN103836794A (en) * | 2012-11-25 | 2014-06-04 | 新疆福克油品股份有限公司 | Multistage heat carrier boiler utilizing exhausted fume high-temperature heat energy |
| CN208282399U (en) * | 2018-05-26 | 2018-12-25 | 大庆华凯石油化工设计工程有限公司 | Coil pipe multilayer furnace wall efficient energy-saving heating stove |
-
2018
- 2018-05-26 CN CN201810527424.1A patent/CN108626883A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2013710C1 (en) * | 1991-12-17 | 1994-05-30 | Борис Викторович Белевич | Contact surface water heater |
| US6381963B1 (en) * | 2000-11-02 | 2002-05-07 | Ethopower Corporation Inc. | High temperature intermittently sealable refractory tile and controlled air continuous gasifiers manufactured therewith |
| CN2572291Y (en) * | 2002-09-10 | 2003-09-10 | 陈建华 | Pipe type gas and oil combustion boiler |
| DE102010006892A1 (en) * | 2010-02-05 | 2011-08-11 | Kneifel, Sven, 76337 | Device for heating of natural gas, has coil, by which natural gas is guided, and has inlet and outlet for natural gas, where coil forms two concentric arranged cylinders |
| CN102794444A (en) * | 2011-05-20 | 2012-11-28 | 气体产品与化学公司 | Heating method and system for controlling air ingress into enclosed spaces |
| CN103836794A (en) * | 2012-11-25 | 2014-06-04 | 新疆福克油品股份有限公司 | Multistage heat carrier boiler utilizing exhausted fume high-temperature heat energy |
| CN208282399U (en) * | 2018-05-26 | 2018-12-25 | 大庆华凯石油化工设计工程有限公司 | Coil pipe multilayer furnace wall efficient energy-saving heating stove |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140834A (en) * | 2020-01-15 | 2020-05-12 | 西安交通大学 | A three-coil gas flue gas turbulent heat exchange device and method |
| CN112161264A (en) * | 2020-07-06 | 2021-01-01 | 广东万和热能科技有限公司 | Full premixed heat exchange combustion system and combustion equipment |
| CN113606566A (en) * | 2021-08-27 | 2021-11-05 | 扬州大唐热能机械制造有限公司 | Flame pressure type water pipe boiler |
| CN119289343A (en) * | 2024-11-26 | 2025-01-10 | 江苏省特种设备安全监督检验研究院 | An inner and outer double-layer heat storage boiler |
| CN119289343B (en) * | 2024-11-26 | 2025-09-05 | 江苏省特种设备安全监督检验研究院 | An inner and outer double-layer heat storage boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102226512B (en) | Condensation type surface combustion boiler | |
| CN108626883A (en) | Coil pipe multilayer furnace wall efficient energy-saving heating stove | |
| CN107855624A (en) | A kind of net belt type combustion gas soldering oven and power-economizing method | |
| CN201242266Y (en) | Tube type heating stove | |
| CN102121752B (en) | Three-return-stroke environment-friendly energy-saving hot blast stove | |
| CN208282399U (en) | Coil pipe multilayer furnace wall efficient energy-saving heating stove | |
| CN205842615U (en) | A kind of biomass efficient horizontal boiler | |
| CN208205811U (en) | A kind of multilayer furnace wall efficient energy-saving heating stove | |
| CN107763680A (en) | A kind of integrated large stove of used heat conversion | |
| CN219160620U (en) | Heat exchange tube of fuel oil water heater | |
| CN117146437A (en) | Energy-saving high-temperature low-oxygen hot-blast stove | |
| CN207716659U (en) | Vertical condensation hot-water boiler | |
| CN110645709A (en) | A high-efficiency condensing gas-fired water heater and system with mixed heat exchange | |
| CN201508036U (en) | Direct-fired tubular split organic heat carrier boiler | |
| CN206973899U (en) | Vertical tipburn oil gas organic heat carrier furnace | |
| CN208333060U (en) | A kind of multilayer furnace wall structure of energy-efficient heating furnace | |
| CN104697170A (en) | Biomass double square coil pipe heat conduction oil furnace | |
| CN100547314C (en) | Compound gas superconductive heater | |
| CN108469181A (en) | A kind of multilayer furnace wall efficient energy-saving heating stove | |
| CN204513747U (en) | A kind of cornue forced circulation burning coal powder hot-water boiler | |
| CN203693289U (en) | Multihole steam furnace energy-saving device | |
| CN203731675U (en) | Annular blowing integrated flue gas hot blast stove | |
| CN108317720A (en) | A kind of oil burning boiler | |
| CN200996720Y (en) | Efficient heater with multiple temperature zone under normal pressure | |
| CN108050693A (en) | fuel gas hot-blast stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181009 |
|
| WW01 | Invention patent application withdrawn after publication |