CN109099462B - An environmentally friendly cooking and heating stove with reverse feeding and decoupling combustion of briquette - Google Patents
An environmentally friendly cooking and heating stove with reverse feeding and decoupling combustion of briquette Download PDFInfo
- Publication number
- CN109099462B CN109099462B CN201811191097.3A CN201811191097A CN109099462B CN 109099462 B CN109099462 B CN 109099462B CN 201811191097 A CN201811191097 A CN 201811191097A CN 109099462 B CN109099462 B CN 109099462B
- Authority
- CN
- China
- Prior art keywords
- fire grate
- water tank
- cooking
- furnace
- coal
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/003—Stoves or ranges on which a removable cooking element is arranged
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B9/00—Stoves, ranges or flue-gas ducts, with additional provisions for heating water
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention relates to a molded coal reverse feeding decoupling combustion environment-friendly cooking and heating furnace, which comprises a cooking and heating furnace body, wherein a peripheral water tank and an upper water tank are respectively arranged at the periphery and the top of the cooking and heating furnace body, the peripheral water tank is communicated with the upper water tank, a fire outlet is formed in the upper water tank, a plurality of siphon water sleeves are arranged around the fire outlet, an upper furnace chamber is arranged in the cooking and heating furnace body, a lower furnace chamber and a flue are arranged in the upper furnace chamber, a coal feeding port is arranged at the position above the upper furnace chamber on the front wall of the upper furnace chamber, a secondary air port is arranged on the front wall of the lower furnace chamber, air ports with adjustable opening sizes are respectively arranged at the coal feeding port and the secondary air port, a lower furnace chamber bottom is provided with a lower furnace chamber, a plurality of rows of screwed pipes are arranged in staggered manner in the flue, a front ash hopper and a rear ash hopper are respectively arranged below the lower furnace chamber and the flue, and a heat insulation layer is arranged outside the water tank.
Description
Technical Field
The invention relates to the technical field of efficient cleaning of civil molded coal, in particular to a molded coal back-feeding decoupling combustion environment-friendly cooking and heating furnace.
Background
The practical conditions of energy structure, economic development and the like in China determine that a distributed household coal stove exists for a long time, and the distributed household coal stove is widely applied to small and medium cities in China, particularly rural villages and towns due to simple structure, convenient use and strong adaptability, particularly in northern areas, and provides great convenience for people to avoid cold when passing winter, but simultaneously, because the capacity of a single stove is smaller, flue gas generated by fuel combustion contains a large amount of nitrogen oxides, sulfur dioxide and fly ash and is discharged into the atmosphere without passing through any purifying device, so seasonal environmental pollution is generated; the stove is not provided with a flue gas waste heat recovery device, high-temperature flue gas is discharged into the atmosphere to take away a large amount of heat, the heat efficiency of the stove is low, and the heating effect is poor.
The existing household coal stove faces the problems of low fuel combustion efficiency, low heat efficiency, environmental pollution and the like, and the existing patent on improving the household small-sized coal stove basically does not solve the two problems at the same time, for example:
The invention relates to a patent with the application number 201611144365.7, namely a high-efficiency energy-saving safe smokeless coal stove, which improves cooking efficiency by forming a sealed high-temperature area between a stove core and a sealed combustion chamber, but fully polymerizes and discharges high-temperature fuel gas and smoke to the outside after high-efficiency heat preservation, and the coal of the coal stove is insufficiently combusted, has low efficiency and serious pollution to the environment, and basically has no heating effect.
The invention relates to a heat exchange tube surrounding type coal stove, which has the application number 201711299287.2, wherein the heat efficiency of the coal stove is improved by arranging a heat preservation stove body, a heating stove body and a spiral pipe, but the stove has NO structure and measures for improving the coal burning efficiency, controlling the generation of NO X and the treatment of flue gas fly ash, and has low combustion efficiency and causes great pollution to the environment.
In view of the shortcomings of the distributed household coal stove and the limitations of the prior invention stove, it is necessary to provide a novel environment-friendly stove for briquette, which can improve the combustion efficiency and the heat efficiency of briquette and relieve the problems of NO X and fly ash pollution in flue gas.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a molded coal back-feeding decoupling combustion environment-friendly cooking and heating furnace, which can promote molded coal ignition, improve the combustion efficiency of molded coal, improve the thermal efficiency of the furnace, and reduce the environmental pollution of NO X and fly ash in flue gas by improving the structure of the furnace.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a moulded coal counter-feeding decoupling combustion environment-friendly type cooking and heating stove, includes the cooking and heating stove body, is provided with perimeter water tank 2 and upper water tank 7 around the cooking and heating stove body and at the top respectively, perimeter water tank 2 and upper water tank 7 intercommunication, the inside fire outlet 11 that is provided with of upper water tank 7 encircles out fire outlet 11 and sets up a plurality of siphon sleeve pipes 10, the cooking and heating stove body inside be equipped with upper furnace 15, lower furnace 17 and flue 4, upper furnace 15 has arranged upper fire grate 16, the position of upper furnace 15 upper fire grate 16 top is equipped with coal feed port 14, lower furnace 17 front wall is equipped with overgrate 18, coal feed port 14 and overgrate 18 all be equipped with opening size adjustable wind gap, lower furnace 17 bottom is provided with lower fire grate 19, set up multirow screwed pipe 5 in the inside staggering of flue 4 the below of lower furnace 17 and flue 4 is provided with preceding ash bucket 21 and back ash bucket 1 respectively, the water tank outside is equipped with heat preservation 22.
The siphon water jacket pipe 10 is composed of a siphon water jacket pipe outer pipe 23 and a siphon water jacket pipe inner pipe 25, the outer pipe 23 is an internal thread pipe, an upper end surface opening is communicated with the upper water tank 7, a lower end surface is closed and stretches into the upper hearth 15, and the siphon water jacket pipe inner pipe 25 is fixed in the outer pipe 23 through a radial bracket 24.
The upper fire grate 16 is a heat exchange tube row which is inclined transversely and communicated with the peripheral water tank 2, and the horizontal inclination angle is 10-20 degrees, so that the placement of molded coal is facilitated, and the stable flow of water in the heat exchange tube is ensured.
The threaded pipes 5 are external threads and are arranged in the flue 4 in staggered mode, the threaded pipes 5 are communicated with the left wall surface and the right wall surface of the peripheral water tank 2, the inclination angle is 10-30 degrees, and stable flow of water in the threaded pipes is ensured.
The lower fire grate 19 is transversely inclined, the inclination angle is 3-8 degrees, the coal ash piled on the lower fire grate 19 is beneficial to falling into the front ash bucket, and the tail end of the lower fire grate 19 is provided with an ash blocking plate 3.
The section of the ash blocking plate 3 is made of sickle-shaped cast iron.
A front ash bucket 21 and a rear ash bucket 1 are respectively arranged below the lower hearth 17 and the flue 4 of the cooking and heating furnace body, the front ash bucket 21 moves back and forth, and the rear ash bucket 1 moves left and right.
The inner wall of the upper hearth 15 is provided with a refractory layer 13.
The invention has the beneficial effects that:
In the use process of the invention, the peripheral water tank 2 and the upper water tank 7 arranged on the stove absorb heat in the hearth and the flue, water in the threaded pipe absorbs heat of flue gas, water in the water jacket pipe 10 forms a siphon phenomenon to continuously absorb radiant heat in the hearth, and the heat efficiency of the stove is improved;
the molded coal and air are mixed and combusted to generate smoke, fly ash in the smoke falls to the lower fire grate 19 under the action of centrifugal force, and then when the smoke flows through the threaded pipe 5 in the flue 4, the fly ash in the smoke falls into the rear ash bucket 1 after colliding with the threaded pipe 5, so that the fly ash in the smoke is reduced;
In the ignition process of the molded coal, the high-temperature refractory material and the high-temperature flue gas above the upper hearth 15 and the high-temperature cinder on the upper grate 16 heat the upper surface and the lower surface of the novel coal simultaneously, the two-sided ignition is enhanced, the coal feeding port 14 is slightly opened, the secondary air port 18 is closed, the molded coal is pyrolyzed in a low-oxygen environment to generate volatile matters and coke with reducibility, the oxygen content in the upper hearth 15 is low, the generation of NO X is inhibited, and meanwhile, the reducing atmosphere and the coke in the upper hearth 15 reduce part of NO X generated by combustion into nitrogen, so that the content of NO X in the flue gas is reduced;
after ignition, the residual coke is efficiently combusted on the upper fire grate 16, unburned burnt coke falls on the lower fire grate 19, is mixed with air entering the lower hearth 17 through the secondary air port and is continuously combusted, and burnt ash slag generated after combustion falls into the front ash bucket 21 after cooling, so that the combustion efficiency of the molded coal is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of fig. 1 in the direction A-A.
Fig. 3 is a cross-sectional view of fig. 1 in the direction B-B.
Fig. 4 is a diagram of a siphon water jacket pipe structure.
Fig. 5 is a cross-sectional view of a siphon water jacket tube.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1: the periphery and the top of the molded coal back feeding decoupling combustion environment-friendly cooking and heating furnace are provided with a peripheral water tank 2 and an upper water tank 7, a plurality of siphon water sleeves 10 are arranged around a fire outlet 11 in the upper water tank 7 (shown in figure 3), the siphon water sleeve 10 realizes enhanced heat exchange by utilizing density differences generated by different temperatures of water in an inner sleeve and an outer sleeve, the siphon water sleeve inner pipe 25 is fixed in the outer sleeve 23 (shown in figure 4 and figure 5), water in a ring-shaped area formed by the inner sleeve and the outer sleeve absorbs radiant heat of an upper hearth 15, the temperature rises, water with higher temperature in the ring-shaped area flows upwards into the upper water tank 7 under the action of pressure difference, cold water in the siphon water sleeve inner pipe 25 flows downwards into the ring-shaped area of the water sleeves to form a siphon phenomenon, radiant heat in the upper hearth 15 is continuously absorbed by the water flowing in the siphon water sleeves 10, the siphon water sleeve outer pipe 23 is an inner threaded pipe, the disturbance of the flowing boundary layer of the water in the siphon water sleeve is increased, the air film and the heat transfer process is prevented from being generated, and the heat efficiency of the stove is improved.
The bottom of the upper hearth and the bottom of the lower hearth are respectively provided with an upper fire grate and a lower fire grate, the front walls of the upper hearth and the lower hearth are provided with a coal feeding port 14 and a secondary air port 18, the sizes of the air ports are adjustable, molded coal is placed on the upper fire grate 15 through the coal feeding port 14, the coal feeding port 14 is slightly opened, the secondary air port 18 is closed, the high-temperature refractory material 13 of the upper hearth 15 and high-temperature flue gas and high-temperature cinder on the upper fire grate 16 heat the upper surface and the lower surface of the novel coal simultaneously in the firing process, double-sided ignition is enhanced, the molded coal is pyrolyzed in a low-oxygen environment to generate volatile matters and coke, the oxygen content in the upper hearth 15 is lower, NO X is inhibited, and meanwhile, the reducing atmosphere and the coke in the upper hearth 15 can reduce part NO X generated by combustion into nitrogen, and the NO X content in the flue gas is reduced; after ignition, the coal feeding port 14 and the secondary air port 18 are closed or the switch is regulated according to cooking and heating requirements, residual coke is efficiently combusted on the upper fire grate 16, unburned coke falls on the lower fire grate 19 and is continuously combusted after being mixed with air entering the lower hearth 17 through the secondary air port 18, and the combustion efficiency of molded coal is improved.
The tail end of the lower fire grate 19 is provided with the ash blocking plate 3 with a sickle-shaped cross section, when the flue gas generated by the combustion of the molded coal moves downwards to the ash blocking plate 3 in a countercurrent way, the flue gas flows along the surface of the ash blocking plate 3 to form vortex, the fly ash in the flue gas falls to the lower fire grate 19 under the action of centrifugal force, the flue gas then enters the flue 4, the inside of the flue 4 is provided with a plurality of rows of horizontally inclined screwed pipes 5, part of the fly ash falls into the rear ash bucket 1 under the action of gravity, and the rest part of the fly ash collides with the wall of the screwed pipes 5, falls into the rear ash bucket 1 or is adsorbed on the pipe wall, so that the fly ash in the flue gas is reduced. Meanwhile, the arrangement of the threaded pipe 5 can further reduce the exhaust gas temperature and improve the thermal efficiency of the stove.
As shown in fig. 2: the threaded pipes 5 are external threads and are arranged in the flue 4 in staggered mode, the threaded pipes 5 are communicated with the left wall surface and the right wall surface of the peripheral water tank 2, and the inclination angle is 10-30 degrees.
The working principle of the invention is as follows:
The molded coal reversely-feeding decoupling combustion environment-friendly cooking and heating furnace has the advantages that cold water flows in from the water inlet 12, part of cold water enters the peripheral water tank 2 and the upper water tank 7 to absorb heat in the hearth and the flue 4, part of cold water enters the threaded pipe 5 to absorb heat of smoke, part of cold water enters the siphon sleeve 10 to form siphon phenomenon to continuously absorb radiant heat in the hearth, the heat efficiency of the furnace is improved, and heated water flows out from the water outlet 6.
The molded coal is placed on an upper fire grate 16, air enters an upper furnace chamber 15 through a coal feeding port 14, smoke is generated after the molded coal and the air are mixed and combusted, the smoke flows to an ash baffle plate 3 from the upper furnace chamber 15 in a countercurrent manner, vortex is formed by the smoke flowing along the surface of the ash baffle plate 3, fly ash in the smoke falls to a lower fire grate 19 under the action of centrifugal force, then enters the bottom of a flue 4 and flows upwards, when the smoke flows through a threaded pipe 5, the fly ash in the smoke collides with the threaded pipe 5 and falls into a rear ash bucket 1, the fly ash in the smoke is reduced to be carried, and finally the smoke is discharged through a smoke outlet 9.
The molded coal is placed on the upper fire grate 16 through the coal feeding port 14, the coal feeding port 14 is slightly opened, the secondary air port 18 is closed, the high-temperature refractory material and high-temperature flue gas above the upper fire hearth 15 and high-temperature cinder on the upper fire grate 16 heat the upper surface and the lower surface of the novel coal simultaneously in the ignition process of the molded coal, the double-sided ignition is enhanced, the molded coal is pyrolyzed in a low-oxygen environment to generate volatile matters and coke with reducibility, the oxygen content in the upper fire hearth 15 is lower, the generation of NO X is inhibited, and meanwhile, the reducing atmosphere and the coke in the upper fire hearth 15 reduce part of NO X generated by combustion into nitrogen, so that the content of NO X in the flue gas is reduced; after ignition, the residual coke is efficiently combusted on the upper fire grate 16, unburned burnt coke falls on the lower fire grate 19, is mixed with air entering the lower hearth 17 through the secondary air port and is continuously combusted, and burnt ash slag generated after combustion falls into the front ash bucket 21 after cooling, so that the combustion efficiency of the molded coal is improved.
The molded coal counter-feeding decoupling combustion environment-friendly cooking and heating furnace has the advantages that when the furnace is used for cooking, the air inlet of the coal feeding port 14 is increased, the oxygen in the upper hearth 15 is sufficient, and the molded coal is efficiently combusted on the upper fire grate 16 to provide heat required by cooking and a high-temperature heat source; when the stove is used for heating, the coal supply port 14 is slightly opened, the molded coal burns in a low-oxygen environment, NO X in the flue gas is reduced, unburned burnt coke of the upper grate 16 falls on the lower grate 19 and is continuously burnt after being mixed with air entering the lower hearth 17 through the secondary air port, and the burnt ash slag generated after burning is fallen into the front ash bucket 21 until being cooled, so that the molded coal combustion efficiency is improved.
Claims (4)
1. The utility model provides a honeycomb briquette anti-feeding decoupling combustion environment-friendly type cooking and heating stove which is characterized by comprising a cooking and heating stove body, wherein a perimeter water tank (2) and an upper water tank (7) are respectively arranged around and at the top of the cooking and heating stove body, the perimeter water tank (2) is communicated with the upper water tank (7), an air outlet (11) is arranged in the upper water tank (7), a plurality of siphon water-absorbing sleeves (10) are arranged around the air outlet (11), an upper furnace (15) is arranged in the cooking and heating stove body, a lower furnace (17) and a flue (4) are arranged in the upper furnace (15), an upper fire grate (16) is arranged at the position above the fire grate (16) on the front wall of the upper furnace (15), a coal feeding port (14) is arranged on the front wall of the lower furnace (17), a secondary air port (18) is arranged on the front wall of the lower furnace (17), the coal feeding port (14) and the secondary air port (18) are both provided with air ports with adjustable opening sizes, the coal feeding port (14) are slightly opened, the secondary air port (18) is closed, the generation of NOx is restrained, a lower furnace (17) is arranged at the bottom of the lower furnace (17), a lower fire grate (19) is arranged in the lower furnace (4), a plurality of fire grate pipes (21) are arranged below the fire grate (4), and a plurality of fire grate pipes (21) are arranged below the fire grate (1), and a fire grate (21) is arranged outside the fire grate (1), and the fire grate is arranged outside the fire grate is arranged on the fire grate (1, and is provided on the fire grate is provided.
The lower fire grate (19) is transversely inclined at an angle of 3-8 degrees, and an ash blocking plate (3) is arranged at the tail end of the lower fire grate (19);
The cross section of the ash blocking plate (3) is sickle-shaped cast iron;
The siphon water suction sleeve (10) consists of a siphon water jacket pipe outer pipe (23) and a siphon water jacket pipe inner pipe (25), the outer pipe (23) is an internal thread pipe, an upper end surface opening is communicated with the upper water tank (7), a lower end surface is closed and extends into the upper hearth (15), and the siphon water jacket pipe inner pipe (25) is opened up and down and is fixed in the outer pipe (23) through a radial bracket (24);
the upper fire grate (16) is a heat exchange tube row which is inclined transversely and communicated with the peripheral water tank (2), and the horizontal inclination angle is 10-20 degrees.
2. The molded coal back-feeding decoupling combustion environment-friendly cooking and heating furnace according to claim 1, wherein the threaded pipes (5) are external threads and are arranged in the flue (4) in a staggered manner, the threaded pipes (5) are communicated with the left wall surface and the right wall surface of the peripheral water tank (2), and the inclination angle is 10-30 degrees.
3. The environment-friendly type coal-fired and decoupling combustion cooking and heating furnace as claimed in claim 1, wherein a front ash bucket (21) and a rear ash bucket (1) are respectively arranged below a lower hearth (17) and a flue (4) of the cooking and heating furnace body, the front ash bucket (21) moves back and forth, and the rear ash bucket (1) moves left and right.
4. The decoupling combustion environment-friendly type cooking and heating furnace for back feeding of molded coal according to claim 1, wherein a fire-resistant layer (13) is arranged on the inner wall of the upper hearth (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811191097.3A CN109099462B (en) | 2018-10-12 | 2018-10-12 | An environmentally friendly cooking and heating stove with reverse feeding and decoupling combustion of briquette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811191097.3A CN109099462B (en) | 2018-10-12 | 2018-10-12 | An environmentally friendly cooking and heating stove with reverse feeding and decoupling combustion of briquette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109099462A CN109099462A (en) | 2018-12-28 |
| CN109099462B true CN109099462B (en) | 2024-05-28 |
Family
ID=64868724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811191097.3A Active CN109099462B (en) | 2018-10-12 | 2018-10-12 | An environmentally friendly cooking and heating stove with reverse feeding and decoupling combustion of briquette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099462B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL73393Y1 (en) * | 2022-06-15 | 2024-03-18 | Pawlowski Henryk Przed Produkcyjno Handlowe Cerkafel | Sectional tiled kitchen with rocket fireplaces |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140477Y (en) * | 1992-11-21 | 1993-08-18 | 杜崇波 | Cooking and heating back burning stove |
| CN2382966Y (en) * | 1999-05-26 | 2000-06-14 | 西安交通大学 | High efficiency civil energy saving forced stove |
| CN2529101Y (en) * | 2001-12-21 | 2003-01-01 | 龚希峰 | All back fire stove with vertical fire grate |
| CN201611111U (en) * | 2010-01-14 | 2010-10-20 | 李文军 | Cooking-heating two-purpose small boiler capable of being burned normally and reversely |
| CN203785005U (en) * | 2014-01-23 | 2014-08-20 | 李福宽 | Counter heating non-smoke environmental-protection boiler |
| CN209341303U (en) * | 2018-10-12 | 2019-09-03 | 西安交通大学 | A kind of moulded coal is counter to raise decoupling burning environment-friendly type and cooks a meal radiator |
-
2018
- 2018-10-12 CN CN201811191097.3A patent/CN109099462B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140477Y (en) * | 1992-11-21 | 1993-08-18 | 杜崇波 | Cooking and heating back burning stove |
| CN2382966Y (en) * | 1999-05-26 | 2000-06-14 | 西安交通大学 | High efficiency civil energy saving forced stove |
| CN2529101Y (en) * | 2001-12-21 | 2003-01-01 | 龚希峰 | All back fire stove with vertical fire grate |
| CN201611111U (en) * | 2010-01-14 | 2010-10-20 | 李文军 | Cooking-heating two-purpose small boiler capable of being burned normally and reversely |
| CN203785005U (en) * | 2014-01-23 | 2014-08-20 | 李福宽 | Counter heating non-smoke environmental-protection boiler |
| CN209341303U (en) * | 2018-10-12 | 2019-09-03 | 西安交通大学 | A kind of moulded coal is counter to raise decoupling burning environment-friendly type and cooks a meal radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109099462A (en) | 2018-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206478864U (en) | A kind of multi fuel high-efficiency cleaning condensing combustion stove | |
| CN109099462B (en) | An environmentally friendly cooking and heating stove with reverse feeding and decoupling combustion of briquette | |
| CN103175298B (en) | Energy-saving environment-friendly heating boiler | |
| CN205174452U (en) | Special clean burning furnace utensil that fires of moulded coal | |
| CN104764047B (en) | Counter-burning type biological straw briquetting heating-cooking dual-purpose stove | |
| CN209341303U (en) | A kind of moulded coal is counter to raise decoupling burning environment-friendly type and cooks a meal radiator | |
| CN105333416B (en) | A clean burning stove with blue charcoal particles | |
| CN201764676U (en) | Carbonized gas mixed-combustion normal pressure boiler | |
| CN202012948U (en) | Three-return counter heating type biomass super-thermal-conductive semi-gasification furnace | |
| CN207196546U (en) | A kind of anti-multi-return-stroke type stove for warming or cooking purpose that burns has | |
| CN201391999Y (en) | A micro-emission environmentally friendly boiler | |
| CN105823090B (en) | A kind of heating stove based on honeycomb ceramic heat accumulator | |
| CN204787216U (en) | Horizontal gasification is returned and is burnt boiler with flue gas postcombustion function | |
| CN204853938U (en) | Vertical gasification is returned and is burnt boiler with flue gas postcombustion function | |
| CN105157220B (en) | Dynamic heat-exchange energy-saving environment-protection boiler | |
| CN204534672U (en) | Counter-burning type biological straw briquetting heating-cooking dual-purpose stove | |
| CN202392833U (en) | High-efficient energy-conservation coal-fired gasification furnace for cooking and heating | |
| CN212005646U (en) | A kind of forward and reverse combustion combined coal-fired stove | |
| CN101726012A (en) | Counter-burning type biomass superconductive gasifier | |
| CN209147148U (en) | Counter-combustion coal stove and its device for reducing tar generation | |
| CN209147149U (en) | Counter-combustion coal stove and its secondary air-distributing device | |
| CN205174453U (en) | Clean burning furnace utensil that fires of blue soot particle | |
| CN204240322U (en) | Integral type wood chip gasification energy saving boiler | |
| CN201715692U (en) | Automatic coal gasification control energy saving boiler | |
| CN203642233U (en) | Energy-saving heating 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |