CN115059936A - Gasification pressure boost postcombustion structure and portable firewood stove - Google Patents
Gasification pressure boost postcombustion structure and portable firewood stove Download PDFInfo
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- CN115059936A CN115059936A CN202210880912.7A CN202210880912A CN115059936A CN 115059936 A CN115059936 A CN 115059936A CN 202210880912 A CN202210880912 A CN 202210880912A CN 115059936 A CN115059936 A CN 115059936A
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- 238000002309 gasification Methods 0.000 title claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 212
- 238000009826 distribution Methods 0.000 claims abstract description 74
- 239000007789 gas Substances 0.000 claims abstract description 47
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 239000000446 fuel Substances 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 238000010248 power generation Methods 0.000 claims abstract description 19
- 238000004146 energy storage Methods 0.000 claims abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003546 flue gas Substances 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims abstract 2
- 239000000779 smoke Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 14
- 239000004964 aerogel Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 238000010411 cooking Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 206010053615 Thermal burn Diseases 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000013461 design Methods 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims description 2
- 229910001095 light aluminium alloy Inorganic materials 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 3
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
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Classifications
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- 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
- F24B1/26—Stoves with additional provisions for cooking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- 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
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/04—Baffles or deflectors for air or combustion products; Flame shields with air supply passages in the baffle or shield
-
- 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
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/08—Helical or twisted baffles or deflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
-
- 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
- F24B1/02—Closed stoves
- F24B1/028—Closed stoves with means for regulating combustion
-
- 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
- F24B13/00—Details solely applicable to stoves or ranges burning solid fuels
- F24B13/002—Surrounds
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- 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 embodiment of the invention provides a gasification pressurization secondary combustion structure, which belongs to the technical field of combustors and comprises the following components: the device comprises a preheating air distribution system, a combustion hearth, a wind-proof firewood adding assembly and a composite heat insulation shell. This combustion structure adopts the air-blower pressurization to admit air, send into combustion furnace lower part respectively after preheating the air distribution system, middle part and upper portion are combustion-supporting, the fuel at first carries out incomplete combustion in combustion furnace lower part, lower part gasifies in combustion furnace, once burn in combustion furnace middle part, the flue gas of incomplete combustion mixes at combustion furnace upper portion and the high temperature combustion-supporting gas after preheating and carries out the postcombustion, combustion furnace goes out the fire hole area and reduces and increase a fire hole pressure and make flame spray and go out, and assemble flame energy, prevent wind and add the matchwood subassembly and conveniently carry out fuel interpolation simultaneously at guarantee flame temperature. The embodiment of the invention also provides a portable firewood stove, the total weight of which is about 1120 g (without a charging component or a battery) and can be used as an outdoor picnic stove for 5 to 10 people, and a power generation and energy storage assembly, an intelligent controller, an intelligent control APP and the like are designed.
Description
Technical Field
The invention belongs to the technical field of burners, and particularly relates to a gasification pressurization secondary combustion structure and a portable firewood stove.
Background
Along with economic development, the living standard of people is higher and higher, but the working and living pressure is higher and higher at the same time, people walk out of cities and make noises and walk into the nature in the busy work, and one family or relatives and friends can carry out hiking, camping and picnic in the field for one time, so that the mode of releasing pressure by people is formed;
in the last two years, the epidemic situation is too violent, so that the originally nervous urban life is stressed, and more people pursuing outdoor life are in pursuit;
outdoor picnic is also a great interest in outdoor life, if a delicious picnic can be realized outdoors, the interest of outdoor activities can be increased certainly, and a stove cannot be opened when picnic needs to be developed;
in the prior art, outdoor picnics generally take several forms:
firstly, an electric appliance:
electric energy is a safe and clean energy, if the cooker such as an electric cooker/an induction cooker can be used outdoors, the cooker is good, but the power of electric appliances required for cooking is larger, generally between 1000 and 3000 watts, so that a very large battery is required, the volume and the weight are larger (generally more than 10 kilograms), and the electric cooker is only suitable for places where vehicles can reach;
generally, most of the places are scenic spots, people are more, the charge is higher, and the vehicle-mounted power supply is extremely cheap and is not suitable for most people;
II, gas furnace:
there are two main forms of outdoor air use;
one type is a traditional liquefied gas tank, the investment is small, the cost is low, the liquefied gas tank is only suitable for being used on a vehicle due to the large weight (generally more than 5 kilograms), and the liquefied gas tank cannot be carried if people want to arrive at a place closer to the nature, meanwhile, the liquefied gas tank is not safe enough, and the liquefied gas tank is forbidden to be brought in many places;
the other type is an outdoor gas tank which is generally propane gas, the market mainly has three specifications of 110 g, 220 g and 450 g, the price is about 10 yuan, 18 yuan and 30 yuan respectively, the gas tank can burn for about 40 minutes to 180 minutes according to different selected furnace ends and fire conditions, a special outdoor furnace end is needed, the gas tank is convenient to carry, and the cooker can be carried by people who are required to be reloaded for outdoor camping. The stove is small, generally suitable for 1 to 5 people, the pot cannot be too large, and the load bearing of the stove head is generally more than 1 to 5 kilograms. However, when the number of people is large (more than 5 people) or the outdoor life time is long (more than 1 day), the travel weight is increased by carrying a plurality of gas tanks, and the demand cannot be met. The air tank can not be carried with public transport facilities and is not convenient to carry;
thirdly, a firewood stove:
when the firewood stove is moved outdoors, the firewood stove is not lack of fuel such as branches in general, so the firewood stove also becomes an option for outdoor life. If the vehicle is carried, a larger firewood stove can be selected, and if the vehicle is carried on the back, a small-size and light-weight firewood stove needs to be selected;
the invention mainly provides a gasification combustion structure, and provides a portable firewood stove in the embodiment, the diameter of the stove body is 15 cm, the height is 21 cm, the weight is about 1120 g (the system does not contain a charging and battery system, the system is an optional module, the firewood stove can normally work without the module in the embodiment), the whole stove is convenient to be reloaded and carried, and the stove is suitable for outdoor picnic of 3 to 10 people;
the furnace body adopts a compact structural design, has light overall weight and compact volume, is convenient to carry, can utilize plant fuels such as field branches and the like, and is economical and practical. The air is supplied by the blower and the unique air duct structure is adopted, so that the combustion is more sufficient, the firepower can reach 3000W power, and almost smokeless combustion is realized, so that on one hand, the cookware can be protected from being blackened, on the other hand, the cookware is more environment-friendly and sanitary, and is particularly suitable for a plurality of people to cook outdoors for a long time;
in the embodiment, an intelligent system is additionally arranged, the firewood stove can be used for generating electricity to be used by the firewood stove, and redundant electric quantity can be stored to charge the mobile phone and the like.
Disclosure of Invention
The embodiment of the invention provides a gasification secondary combustion increasing structure and a portable firewood stove, which aim to solve the problem of cooking stoves in the outdoor activity process;
a first aspect of an embodiment of the present invention provides a burner combustion structure, including: the device comprises a preheating air distribution system, a combustion hearth, a wind-proof firewood adding assembly and a composite heat insulation shell;
external gas enters the preheating air distribution system under the pressurization of the blower, and preheated combustion-supporting gas enters the combustion furnace from air inlets at different positions of the combustion furnace through the air distribution system to participate in combustion supporting;
the preheating air distribution system is divided into a bottom preheating system and an upper preheating system;
the bottom preheating system is of a disc-shaped symmetrical air channel structure, air passes through the air channel structure, the air channel upper cover is tightly attached to the lower portion of the combustion hearth and can be heated by the combustion hearth, heat is transferred to a guide plate in the air channel, the high-temperature upper cover and the guide plate can heat passing air, the disc-shaped structure prolongs the time of air flowing through and further increases the preheating effect, the preheated air uniformly enters the upper preheating air distribution system from a bottom air distribution opening in the upper portion of the outermost ring of the air channel, a spiral guide plate in the upper preheating air distribution system guides the air to rotate and rise around the combustion hearth to further preheat the air, and the high-temperature combustion-supporting air finally enters the combustion hearth through an air inlet reserved in the outer wall of the combustion hearth to participate in combustion supporting;
the fuel is incompletely combusted and gasified at the lower part of the combustion hearth, the gasified smoke rises and is combusted at the middle part of the combustion hearth for the first time, wherein a combustion-supporting gas air inlet at the middle part of the hearth is not in the same plane with the outer wall of the hearth, and forms an included angle close to parallel with the outer wall, so that the high-speed gas forms spiral airflow in the hearth to drive the smoke in the hearth to spirally rise to be beneficial to the complete combustion of the fuel, the flame after the first combustion and the incompletely combusted smoke rise to the upper part of the combustion hearth to be mixed with the secondary combustion-supporting gas for the complete combustion, the smokeless combustion effect is approximate, the preheating time of the secondary combustion-supporting gas is longest, the temperature is closest to the temperature of the hearth, the secondary combustion efficiency can be effectively improved, the area of a fire outlet of the combustion hearth is reduced, the pressure of the fire outlet is increased to enable the flame to be jetted and gather the combustion heat, and the flame can reach a cooker through a windproof and matchable assembly, the composite heat insulation shell prevents heat loss and scald.
The invention is characterized in that the inner wall of the composite heat insulation shell is made of aerogel which is a new material, the inner wall and the outer wall can be tightly combined together due to the excellent heat insulation performance of the aerogel, a user can be prevented from being scalded by the outer wall, most of portable firewood stoves on the market are two layers of materials, the inner wall needs to be sealed to ensure the airtightness of an air distribution system, the hole of the shell is convenient for heat dissipation, a gap needs to be reserved between the two layers, the diameter of the stove body is increased by more than 2 cm or even 3 cm, the weight of the stove body is greatly increased by the two layers of metal materials, the stove body is inconvenient to carry, and the heat insulation effect through the air between the two layers of shells is far smaller than the heat insulation effect of the aerogel material. The aerogel is a soft material, and is more convenient to be sealed with the upper cover of the bottom air distribution system and the lower wall of the windproof firewood adding component to form an upper air distribution system cavity compared with other furnace bodies;
according to a second aspect of embodiments of the present invention there is provided a portable firewood stove comprising: a support base, a combustion structure as provided in the first aspect, a windproof burner assembly, a power generation and energy storage system, an intelligent control system, and an intelligent control APP;
the support base supports the burning structure, the windproof burner assembly is mounted on the upper portion of the burning structure, and the four adaptive pot support frames can support 16-36 cm cookers, and the bearing capacity of the four adaptive pot support frames exceeds 60 kilograms. The power generation and energy storage system can generate power while the firewood stove works, and the power is stored in the built-in rechargeable battery and drives the fan to work;
the intelligent control system can monitor the temperature of the hearth, automatically turn off the fan after the temperature of the hearth is reduced to a safe temperature to protect the hearth and save electric energy, adjust the rotating speed of the fan through keys to adjust the firepower, and the LED nixie tube displays the temperature of the hearth, the firepower, the residual electric quantity of the battery, charging and discharging indication and other information;
the intelligent control APP can be connected with the intelligent control system through the Bluetooth by the aid of a mobile phone, and the temperature of a combustion furnace, the firepower (0-8 grade), the residual electric quantity of a battery, the power generation voltage and current, the charging voltage and current, the starting time of a fan, the closing time of the fan and the like can be checked through the mobile phone.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only one of some embodiments of the present invention, the core of which is;
FIG. 1 is a schematic view of a gasification supercharged secondary combustion configuration of the present invention;
fig. 2 is a schematic specification diagram of a gasification and pressurization secondary combustion structure according to an exemplary embodiment, in which the preheating air distribution system 1, the combustion furnace 2, the wind and firewood prevention assembly 3, and the composite heat insulation shell 4 constitute a combustion structure main body, and each part is a detachable single assembly, which is convenient for production, assembly, and maintenance, but the invention is not limited thereto.
FIG. 3 is a schematic view taken along line C-C of FIG. 1;
FIG. 4 is a schematic view taken along line D-D of FIG. 1;
FIG. 5 is a schematic diagram illustrating a portable firewood stove incorporating the combustion structure of the present invention, according to an exemplary embodiment;
description of main structural symbols:
Bottom preheating air distribution system 12
Bottom preheating air distribution system guide plate 123
Top cover wind gap 124
Bottom cover wind gathering and guiding plate 126 of bottom preheating wind distribution system
Upper preheating air distribution system 13
Composite heat insulation shell inner wall 41
Composite insulating outer shell wall 42
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings, wherein like numerals in the different drawings represent the same or similar elements unless otherwise specified, and wherein the embodiments described in the exemplary embodiments below do not represent all embodiments consistent with the invention, but are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims;
for the sake of easy understanding, in particular, H =260mm (millimeter), L =150mm, L1=120mm, L2=70mm, H1=80mm, H2=20mm, H3=20 m. This is not meant to be the only possibility of the invention;
in the background technology, different technologies have adaptive scenes and restrictions, and the invention provides a selectable portable firewood stove by improving a combustion structure;
the following is illustrated with reference to the examples:
the embodiment of the invention provides a gasification pressurization secondary combustion structure, which comprises:
the device comprises a preheating air distribution system, a combustion hearth, a wind-proof firewood-adding component and a composite heat-insulating shell;
the air is pressurized by the blower and sent into the bottom preheating system, the air rises from the bottom air distribution port after being preliminarily preheated and enters the upper preheating air distribution system, the air is guided by the spiral guide plate of the upper preheating air distribution system to spirally rise around the combustion hearth for further preheating, the air enters the combustion hearth from air inlets at different positions on the outer wall of the combustion hearth to participate in combustion supporting, and the windproof firewood adding assembly is convenient for adding fuel when the stove works.
Furthermore, the preheating air distribution system comprises a blower, a bottom preheating system and an upper preheating system, the blower pressurizes air and sends the air into the bottom preheating air distribution system, the bottom preheating system preheats the air sent by the blower primarily, the upper preheating system further preheats the air, and high-temperature combustion-supporting gas participates in combustion supporting, so that the fuel and the flue gas can be fully combusted, the combustion efficiency is improved, the furnace temperature is increased, and the smokeless combustion effect is achieved;
the air blower is a direct-current axial-flow fan and can be powered by a common charger, the general 10000mAH charger can support the air blower to work for more than 14 hours to meet the use requirement, and the rotating speed of the air blower can be adjusted by adjusting the power supply voltage so as to adjust the air inlet quantity to adjust the firepower;
the bottom preheating air distribution system is a cavity formed by a bottom cover of the bottom preheating air distribution system and an upper cover of the bottom preheating air distribution system, and is of a bilaterally symmetrical rotary air channel structure, wherein a guide plate is arranged on the upper cover, and when air passes through the upper cover, the air is heated by the upper cover of the bottom preheating system and the guide plate which are at high temperature;
the upper preheating air distribution system is a cavity formed by the outer wall of the combustion hearth, the upper cover of the bottom preheating system, the lower wall of the windproof firewood adding assembly and the inner wall of the composite heat insulation shell, a spiral guide plate is arranged in the upper preheating air distribution system, air rises around the combustion hearth under the guide of the guide plate in a rotating mode, the air is further preheated by the outer wall of the combustion hearth with high temperature and the guide plate, and enters the combustion hearth for supporting combustion through an air inlet in the outer wall of the combustion hearth.
Furthermore, the combustion hearth is divided into a combustion hearth main body and a supercharging energy-gathering secondary combustion hearth, the combustion hearth main body is divided into a combustion hearth lower part and a combustion hearth middle part, the combustion hearth main body is fixed through a bottom preheating air distribution system upper cover clamping groove, the supercharging energy-gathering secondary combustion hearth forms the combustion hearth upper part, and air inlets are reserved in the lower part, the middle part and the upper part of the outer wall of the combustion hearth. The fuel is incompletely combusted, dry distilled and gasified at the lower part of the combustion hearth, the gasified smoke rises and is mixed with combustion-supporting gas at the middle air inlet to carry out primary combustion, the fuel is further combusted and gasified, the incompletely combusted smoke is pushed by the combustion-supporting gas at the middle air inlet, whirlwind-type rotation rises and is further combusted, and the incompletely combusted smoke is fully combusted after being mixed with secondary combustion-supporting gas entering from the upper air inlet at the upper part of the combustion hearth, so that the smokeless combustion effect is finally achieved;
the combustion hearth body and the supercharging energy-gathering secondary combustion hearth can be detached and assembled, and are convenient to produce, manufacture, replace and maintain;
wherein, the lower part and the middle part of the combustion hearth main body are provided with a bottom air inlet and a middle air inlet, the fuel is incompletely combusted and gasified at the lower part of the combustion hearth main body, and the gasified gas and the fuel are combusted at the middle part of the combustion hearth main body for the first time;
combustion-supporting gas in the middle of the combustion hearth enters the combustion hearth at a certain angle to drive smoke to rise in a cyclone manner and combust, so that the combustion time is prolonged, the combustion is more sufficient, and the combustion efficiency is improved;
the pressurized energy-gathering secondary combustion hearth is a conical hearth and can be quickly assembled and separated from the combustion hearth main body, four rows of upper air inlets with different angles are reserved on the pressurized energy-gathering secondary combustion hearth, preheated combustion-supporting gas enters from the upper air inlets to participate in combustion supporting, incompletely combusted smoke in the hearth main body is subjected to secondary combustion, and a smokeless effect is achieved under the condition of full combustion;
wherein, the sectional area of the fire outlet is smaller than that of the combustion hearth main body, and the flame pressure of the fire outlet is larger than the internal pressure of the combustion hearth main body, so that the flame is ejected out.
Furthermore, the windproof firewood adding component is in an inverted cone shape, the conical top and the supercharging energy-gathering secondary combustion furnace fire outlet are assembled together, the conical bottom upwards forms a certain inclination angle, fuel conveniently enters the combustion furnace, the windproof function can be achieved, only when the fuel enters the combustion furnace, the fuel can be fully combusted without smoke, and smoke can be generated due to the fact that the fuel does not enter the combustion furnace.
Furthermore, the composite heat insulation shell comprises an inner wall, an outer wall and four support columns, wherein the inner wall is made of a new flexible aerogel material, the outer wall is made of a thin metal material, the support columns are made of light aluminum pipes, and the support columns and the outer wall are welded together to play a role in increasing the load bearing of the furnace body;
the inner wall and the outer wall are tightly attached, so that the diameter of the furnace body is reduced, and the furnace is convenient to carry;
the inner wall of the combustion furnace is provided with a light heat insulation material aerogel cushion, the aerogel is an artificially synthesized solid material with the minimum density, the heat insulation performance of the aerogel is close to that of down feather, the high temperature resistance of the aerogel can reach 1600 ℃, and a cavity formed by the inner wall of the shell, the outer wall of the combustion furnace, the bottom preheating air distribution system upper cover and the lower wall of the windproof firewood-adding assembly forms an upper preheating air distribution system air channel;
wherein, the outer wall is made of light metal material, which plays a role of supporting and protecting the inner wall, and the hole is opened to facilitate heat dissipation;
wherein, the support column selects the light aluminum alloy tubule, is fixed with the outer wall together, plays the effect of supporting protective housing.
[ example 1 ]
FIG. 1 is a schematic illustration of a boosted gasification secondary combustion configuration shown in accordance with an exemplary embodiment. As shown in fig. 2 to 4, in the combustion structure of the present invention, air enters the combustion furnace through the preheating air distribution system 1 through the air inlet 14 located on the outer wall of the combustion furnace 2 to participate in combustion supporting;
the preheating air distribution system is divided into an air blower 11, a bottom preheating air distribution system 12, an upper preheating air distribution system 13 and an air inlet 14 positioned on the outer wall of the combustion hearth;
the bottom preheating air distribution system consists of a bottom cover 121, an upper cover 122, a guide plate 123 positioned on the upper cover, a bottom air distribution opening 124 positioned on the upper cover, a bottom air inlet 125 positioned on the bottom cover and an air inlet air gathering and guiding plate 126 positioned on the bottom cover;
the upper preheating air distribution system consists of an upper preheating air distribution air channel 131 formed by the outer wall of the combustion hearth, an upper cover of the bottom preheating air distribution system, the lower wall of the windproof firewood-adding component and the inner wall of the composite heat-insulating shell, and a spiral guide plate 132 positioned in the air channel;
air inlets on the outer wall of the combustion hearth are divided into three groups 141, 142 and 143 from bottom to top, and preheated combustion-supporting gas enters the combustion hearth from different air inlets to participate in combustion supporting;
the bottom air inlets 141 are divided into two rows, the aperture is small, so that fuel is incompletely combusted, dry distilled and gasified at the lower part 21 of the combustion hearth, the gasified smoke rises to the middle part 22 of the combustion hearth and is mixed with combustion-supporting gas entering from the air inlet 142 for primary combustion, the air inlet 142 and the inner wall of the combustion hearth are not on the same plane, so that the air inlet rises in a cyclone manner and drives the incompletely combusted smoke to rise to the supercharging energy-collecting secondary combustion hearth 23 at the upper part of the combustion hearth and is mixed with the combustion-supporting gas entering from the air inlet 143 for secondary combustion, the air inlets 143 are divided into four rows, the sufficient supply of the combustion-supporting gas is ensured, the sufficient combustion is facilitated, and the smokeless effect is achieved;
finally, the flame reaches the cooker from a fire outlet 24 at the upper part 23 of the combustion hearth through the windproof match adding assembly 3;
the composite heat insulation shell 4 is divided into an inner wall 41 and an outer wall 42, wherein the inner wall is made of aerogel materials, the outer wall is made of metal materials, the outer wall is provided with holes for facilitating heat dissipation, and the support columns 43 on the outer wall play a role in supporting and protecting the furnace body;
it should be noted that the schematic diagrams in the embodiments of the present invention use arrows to indicate the airflow direction;
in the embodiment, the combustion structure provided by the invention is applied, so that the overall combustion efficiency of the combustor or the firewood stove with the combustion structure is greatly improved.
[ example 2 ]
Fig. 5 is a schematic view of a portable firewood stove having a combustion structure of the present invention, shown in accordance with an exemplary embodiment. As shown in fig. 5, in the portable firewood stove of the present invention, a support base 5 is installed at the bottom of a composite heat insulation casing 4, a windproof burner assembly 6 is installed at the upper part of the composite heat insulation casing 4, the side of the composite heat insulation casing 4 where a power generation and energy storage system 7 is installed, an intelligent control system 8 and the power generation and energy storage system are integrated into a whole and installed at the side of the composite heat insulation casing 4;
the support base supports a sintering mechanism to play a role in stabilizing a firewood stove, a windproof burner assembly is installed on the upper portion of the combustion structure, four self-adaptive frame pot supports 61 can support 16-36 cm cookers, the bearing exceeds 60 kilograms, a firewood adding port 62 is reserved on the side face of the windproof burner assembly, an air inlet 64 with a windproof mesh cover 63 is reserved, a power generation and energy storage system can generate power while the combustion furnace works, the power is stored in a built-in rechargeable battery and drives a fan to work, an intelligent control system can monitor the temperature of a hearth, the fan is automatically turned off after the temperature of the hearth is reduced to a safe temperature to protect the hearth and save the electric energy, the rotating speed of the fan can be adjusted through keys to adjust the firepower, an LED nixie tube displays the temperature of the hearth, the firepower and the residual electric quantity of the battery, charge and discharge indication and other information, and an intelligent control APP can be connected with a mobile phone through Bluetooth and the intelligent control system, checking the temperature of a combustion hearth, the firepower (0-8 grade), the residual electric quantity of a battery, the power generation voltage and current, the charging voltage and current, the starting time of a fan, the closing time of the fan and the like through a mobile phone;
it will be understood that the invention is not limited to the precise arrangements which have been described above and illustrated in the drawings and that various modifications and changes may be made without departing from the scope thereof, which is limited only by the claims appended hereto.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the pressurized gasification secondary combustion purification structure and the portable firewood stove provided by the present invention, those skilled in the art will be able to change the concept of the embodiment of the present invention based on the present invention, and in summary, the present specification should not be construed as limiting the present invention, and all such changes and substitutions should be covered by the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the appended claims.
Claims (9)
1. A gasification supercharged secondary combustion structure, comprising: the device comprises a preheating air distribution system, a combustion hearth, a wind-proof firewood adding assembly and a composite heat insulation shell;
the fuel carries out incomplete combustion and gasification in combustion furnace lower part, the flue gas after the gasification rises, carry out the burning once in combustion furnace middle part, flame after the burning once and the flue gas of incomplete burning rise to combustion furnace upper portion and the secondary combustion-supporting gas mixture and carry out abundant burning, reach and be close to smokeless combustion effect, combustion furnace goes out the fire hole area and reduces, increase out fire hole pressure and make flame spray and go out and assemble the burning heat, reach the cooking utensil through preventing wind with the firewood subassembly, compound thermal-insulated shell prevents that the heat from losing and prevents to scald simultaneously.
2. The preheating air distribution system comprises an air blower, a bottom preheating air distribution system, an upper preheating air distribution system and an air inlet positioned on the outer wall of the combustion hearth; high-speed gas output by the fan enters the bottom preheating air distribution system, the bottom preheating air distribution system is preheated, the preheated gas enters the upper preheating air distribution system from the bottom air distribution port, and combustion-supporting gas is further preheated and is fed into the combustion hearth through the air inlet;
the preheating air distribution system is characterized in that a preheating system is designed, preheated combustion-supporting gas can effectively improve the combustion efficiency of fuel, the temperature in the furnace is improved, according to the characteristics of the combustion-supporting gas required by different positions of a combustion hearth, a horizontally-arranged air inlet is reserved at the lower part of the combustion hearth, a vertically-arranged air inlet is reserved at the middle part of the combustion hearth, and a horizontally-arranged air inlet is reserved at the upper part of the combustion hearth;
the bottom preheating air distribution system comprises a bottom cover, an air inlet of the bottom preheating air distribution system, an upper cover and a bottom cover heat insulation pad;
the bottom cover is characterized in that the lower part of the bottom cover is of a conical structure, so that gas coming out of the fan is collected and converged to enter an air inlet of a bottom preheating air distribution system, and the upper part of the bottom cover is horizontally and tightly combined with the upper cover;
the air inlet of the bottom preheating air distribution system is characterized in that the air inlet is a circular opening positioned in the center of the bottom cover, and air enters an air channel of the bottom preheating air distribution system from the air inlet of the bottom preheating system;
the upper cover is characterized in that the upper cover is provided with a metal guide plate, the upper cover and the bottom cover are combined to form a bilaterally symmetrical rotary air duct, the upper cover is tightly combined with the bottom of the combustion hearth, and the combustion hearth can heat the upper cover and the guide plate and heat the passing gas;
the upper part of the outermost circle of air channels of the upper cover is provided with symmetrical bottom air distribution ports, preheated air uniformly enters an upper part preheating air distribution system from the base air distribution ports, and the upper cover is provided with a clamping groove for fixing a combustion hearth;
the base heat insulation pad is positioned between the lower part of the base and the fan, and is characterized in that a high heat insulation aerogel material is selected, so that the fan can be protected on one hand, and the base heat insulation pad is convenient to seal with the bottom cover on the other hand;
the bottom air distribution port is positioned at the upper part of the outermost circle of air channel of the upper cover, and is characterized in that the air distribution port opening which is farther away from the air inlet is larger so as to ensure that the preheated air uniformly enters the upper preheating air distribution system;
the upper preheating air distribution system comprises an upper preheating air distribution air duct, an air inlet and a spiral guide plate; the upper part of the upper preheating air distribution duct is composed of a closed cavity formed by an upper cover of the bottom preheating system, the outer wall of the combustion hearth, the lower wall of the windproof firewood-adding component and the inner wall of the composite heat-insulating shell, an air inlet is reserved at a specific position on the outer wall of the combustion hearth at a specific angle, preheated air can enter the combustion hearth through the air inlet, a spiral guide plate is placed in the upper preheating air distribution duct, the air entering from the air distribution port at the bottom rotates and rises around the combustion hearth under the guidance of a spiral guide plate to be further preheated, meanwhile, the spiral guide plate and the outer wall of the combustion hearth are tightly attached to be in a high-temperature state to heat the flowing air, and the preheated air respectively enters the lower part, the middle part and the upper part of the combustion hearth through the air inlet on the outer wall of the combustion hearth to participate in combustion supporting;
the air inlet on the outer wall of the combustion hearth comprises a lower air inlet, a middle air inlet and an upper air inlet, wherein the lower air inlet provides gasified combustion-supporting gas for the lower part of the hearth, the middle air inlet provides combustion-supporting gas for gasifying and primarily combusting fuel at the lower part and the middle part of the combustion hearth, and the upper air inlet provides secondary combustion-supporting gas for incompletely combusted gasified smoke at the upper part of the combustion hearth, so that the smoke in the combustion hearth is completely combusted to achieve a smokeless effect;
the middle air inlet is positioned in the middle of the combustion hearth and is characterized in that an outlet of the air inlet and the outer wall of the combustion hearth are not on the same plane, an included angle is formed between an air outlet angle and the outer wall of the combustion hearth, gas in the combustion hearth is pushed by airflow to rotate spirally, and then smoke in the combustion hearth is driven to spirally rise and burn to form spiral flame, so that the burning time is further increased, and full burning is facilitated;
the spiral guide plate assembly is characterized in that the spiral guide plate assembly is formed by combining four spiral metal guide plates to form four relatively independent spiral air channels respectively, the preheated gas at the air distribution port at the bottom enters the four spiral air channels respectively, and the guide plates and the outer wall of the combustion hearth preheat the gas together.
3. The combustion hearth comprises a combustion hearth main body and a supercharging energy-gathering secondary combustion hearth, wherein the combustion hearth main body is divided into a lower part of the combustion hearth and a middle part of the combustion hearth and is fixed through a clamping groove of an upper cover of a bottom preheating air distribution system, and the supercharging energy-gathering secondary combustion hearth forms the upper part of the combustion hearth;
the combustion hearth is characterized in that the combustion hearth main body and the supercharging energy-gathering secondary combustion hearth can be in an assembled modular design, so that the combustion hearth is convenient to replace and maintain;
the combustion hearth is characterized in that a bottom air inlet and a middle air inlet are formed in the lower part and the middle part of a combustion hearth main body, fuel is incompletely combusted and gasified at the lower part of the combustion hearth main body, and gasified gas and fuel are combusted at the middle part of the combustion hearth main body for the first time;
the combustion furnace is characterized in that combustion-supporting gas in the middle of the combustion furnace enters the combustion furnace at a certain angle to drive smoke to rise in a cyclone manner and combust, so that the combustion time is prolonged, the combustion is more sufficient, and the combustion efficiency is improved;
the supercharging energy-gathering secondary combustion hearth is characterized in that the whole hearth is a conical hearth which can be quickly assembled and separated from a combustion hearth, upper air inlets with different angles are reserved on the hearth, preheated combustion-supporting gas enters from the upper air inlets, incompletely combusted smoke in a hearth main body is subjected to secondary combustion, and a smokeless effect is achieved under the condition of full combustion;
the flame outlet is characterized in that the sectional area is smaller than that of the combustion hearth main body, the flame pressure of the flame outlet is larger than the internal pressure of the combustion hearth main body, and the flame is sprayed out.
4. Prevent wind with faggots subassembly, its characterized in that wholly is the back taper, toper sub-unit connection burning furnace goes out the burner, and upper portion and the close laminating of compound thermal-insulated shell constitute the upper portion of cloth wind system, and it has the faggots mouth to open on compound thermal-insulated shell upper portion, and the faggots mouth that inclines is convenient for fuel and gets into burning furnace.
5. The composite heat insulation shell comprises an inner wall, an outer wall and support columns, wherein the inner wall and the lower wall of the windproof firewood adding component are tightly attached and form a closed space with the outer wall of a combustion furnace chamber, namely an upper preheating air distribution system;
the composite heat insulation shell inner wall is characterized in that the inner wall is made of a light heat insulation aerogel material, the aerogel is resistant to high temperature up to 1600 ℃, the heat conduction coefficient is low, heat loss in the furnace body is prevented conveniently, the preheating air duct efficiency is improved, the temperature of the outer wall is reduced, users are protected, meanwhile, the material is soft and can be tightly attached to a firewood adding assembly, and meanwhile, the inner wall is also an independent assembly capable of being detached from the outer wall and is convenient to replace;
the composite heat insulation shell is characterized in that the inner wall and the outer wall are tightly attached together, the inner wall is made of a light heat insulation material, and the outer wall is made of a light metal material, so that the outer diameter of a combustion structure can be reduced, and the whole weight is reduced;
the composite heat insulation shell is characterized in that the outer wall is provided with honeycomb-shaped openings, so that heat dissipation is facilitated and the whole weight is reduced;
the supporting columns are totally four and uniformly distributed on the furnace body shell and fixed with the outer wall, the supporting columns are made of light aluminum alloy hollow small aluminum tubes, and the top round holes are used for being assembled and fixed with the upper assembly of the combustion structure.
6. A portable firewood stove, characterized by comprising a support base, a combustion structure as claimed in any one of claims 1 to 7, a windproof burner assembly, a power generation and energy storage system, an intelligent control APP;
the supporting base supports the combustion structure, the windproof burner assembly is mounted on the upper portion of the combustion structure, the four adaptive pot support frames can support 16-36 cm cookers, the bearing capacity exceeds 60 kilograms, the power generation and energy storage system can generate power while the combustion furnace works, and the power is stored in a built-in rechargeable battery and drives a fan to work; the intelligent control system can monitor the temperature of the hearth, automatically turn off the fan after the temperature of the hearth is reduced to a safe temperature to protect the hearth and save electric energy, adjust the rotating speed of the fan through keys to adjust the firepower, and the LED nixie tube displays the temperature of the hearth, the firepower, the residual electric quantity of the battery, charging and discharging indication and other information; the intelligent control APP can be connected with an intelligent control system through a Bluetooth by a mobile phone, and the temperature of a combustion furnace, the firepower (0-8 grade), the residual electric quantity of a battery, the power generation voltage and current, the charging voltage and current, the starting time of a fan, the closing time of the fan and the like are checked through the mobile phone;
the support base of claim 6, wherein the support base is composed of a support chassis and a foldable bracket;
wherein, the supporting chassis is made of stainless steel material and is fixed on the supporting column in the combustion structure according to claim 1 through screws, and the supporting chassis is provided with a compass-shaped opening to facilitate heat dissipation and reduce the overall weight;
the foldable support is fixed on the supporting chassis, can be stored at the bottom of the furnace body after being folded, and can be supported on the working face after being unfolded to improve the stability of the furnace body.
7. The wind-proof burner assembly of claim 6, which comprises a wind-proof screen and a pot supporting frame, wherein the wind-proof screen is mounted on the combustion structure of claim 1, and has openings for allowing combustion-supporting gas to enter and further burning the unburned flue gas, and firewood-adding openings for allowing fuel to enter; the pot supporting frame is arranged on the windproof net cover, can be folded and stored in the windproof net cover, and can support cookers with diameters of 16 CM to 36 CM after being unfolded;
the windproof net cover is characterized by comprising four pillars, wherein the upper ends of the pillars are provided with self-adaptive pot support frames, and the lower ends of the pillars are inserted into the pillar openings on the outer wall of the combustion structure according to claim 1 in a protruding manner;
the side surface of the windproof mesh enclosure is provided with an air inlet, and the air inlet is provided with a wind shielding device to prevent external cold air from directly entering the interior of the windproof mesh enclosure to influence the flame temperature;
wherein, the side of the windproof net cover is provided with a firewood adding port, which is convenient for adding fuel.
8. The power generation and energy storage system according to claim 6, wherein a semiconductor thermoelectric power generation device is selected, a hole is formed in the housing of the combustion structure according to claim 1, the high-temperature end of the power generation device is embedded in the inner wall of the combustion structure, the low-temperature end of the power generation device is arranged outside the combustion structure to form a temperature difference, the power generation device can convert heat energy into electric energy, a built-in charging battery is charged after voltage stabilization, the built-in battery can drive the blower and the intelligent control system to work, and the power generation and energy storage system is fixed on the housing of the combustion structure through a buckle.
9. The intelligent control system according to claim 6, wherein the intelligent control system has functions of monitoring, controlling, displaying, protecting, alarming and the like of a combustion structure;
the intelligent control system keeps the blower to continuously work to send outside low-temperature air into the interior to protect the hearth and the air distribution system from being damaged by high temperature before the temperature is 150 ℃ lower than the safe temperature, the speed of the blower is adjusted to be the highest after the temperature of the high-temperature end of the power generation device exceeds 250 ℃, and the honeycomb alarm gives an alarm to prompt that the temperature is too high, so that fuel in the hearth needs to be poured out as soon as possible and the blower stops being used, so that the power generation device is prevented from being damaged;
the intelligent control system is characterized in that keys are designed, and the intelligent control system can turn on/off the system, start/stop the fan and increase/decrease the firepower;
wherein, the intelligent control system is designed with an LED nixie tube display screen, wherein firepower size and charging/discharging state are respectively displayed.
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| CN202210880912.7A CN115059936A (en) | 2022-07-26 | 2022-07-26 | Gasification pressure boost postcombustion structure and portable firewood stove |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210880912.7A CN115059936A (en) | 2022-07-26 | 2022-07-26 | Gasification pressure boost postcombustion structure and portable firewood stove |
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| CN2178842Y (en) * | 1993-09-25 | 1994-10-05 | 李正安 | Vertical boiler with ringlike preheating wind channel |
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| CN206247396U (en) * | 2016-09-14 | 2017-06-13 | 云南万潮科技有限公司 | High-efficient environment protection saving furnace |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178842Y (en) * | 1993-09-25 | 1994-10-05 | 李正安 | Vertical boiler with ringlike preheating wind channel |
| CN2625733Y (en) * | 2003-05-28 | 2004-07-14 | 黄石市建材节能设备总厂 | Preheating whirlwind combustion furnace |
| CN102966968A (en) * | 2012-12-04 | 2013-03-13 | 成都风伦达科技有限公司 | Air preheating structure of burner |
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