CN111156505A - Gasification type combustion head - Google Patents

Abstract

The gasification type combustion head belongs to a component of liquid fuel combustion equipment and comprises a combustion cylinder, wherein a sleeve is sleeved outside the combustion cylinder, two ends of the sleeve are fixedly connected with opposite ends of the combustion cylinder in a sealing way, an annular gas-liquid chamber is arranged between the combustion cylinder and the sleeve, the lower part of the rear end of the gas-liquid chamber is connected with a liquid injection pipe, and the upper part of the front end of the gas-liquid chamber is connected with a gas-liquid outlet pipe; the center of the inner side of the combustion cylinder is provided with an air injection pipe, the front end of the air injection pipe is connected with a gas-liquid outlet pipe, the rear end of the air injection pipe is provided with a spray head, and a plurality of spray holes are uniformly distributed along the periphery of the spray head; a plurality of heat absorbing plates are uniformly distributed on the circumference of the air injection pipe, one end of each heat absorbing plate is opposite to the air injection pipe, a gap is arranged between each heat absorbing plate and the air injection pipe, and the other end of each heat absorbing plate is fixedly connected with the inner wall of the combustion cylinder; the gasification type combustion head can improve the combustion temperature of the clean fuel, improve the utilization rate of the clean fuel, ensure that the heat loss of the clean fuel is small, and has obvious energy-saving and environment-friendly effects.

Description

Gasification type combustion head

Technical Field

The invention relates to the field of liquid fuel combustion equipment, in particular to a gasification type combustion head.

Background

At present, the energy of China is actually the condition of 'more coal', the total amount of the used coal is more than 80%, and the emission of a coal-fired boiler is a main source of acid rain and haze because the emission of the coal-fired boiler seriously pollutes the environment. In order to protect the environment, the coal-fired boiler must be reformed by removing sulfur, coke and dust, and the discharged tail smoke is required to be white smoke; the coal-fired boiler with less than 10 tons is required to be dismantled step by step, and the electric energy or the gas energy or the clean environment-friendly fuel and other fuels which can reach the standard are required to be changed, so that the national standard requirement of environment protection is met. The clean and environment-friendly fuel can be completely combusted, so that the clean fuel is used for replacing fire coal and is applied to the civil field, and the application of the clean fuel and other fuels is proved by practice, so that the clean and environment-friendly fuel has the effects of energy conservation and emission reduction and has good social benefits.

The environmental protection hot water boiler that appears in recent years, the design that obtains good effect with clean fuel and other fuel, the key feature is that area is little, simple structure, and manufacturing and construction simple to operate, more importantly the thermal efficiency is high, and super heat conduction hot water boiler has more the potentiality especially. The combustion of most clean fuel boilers is atomizing flame-spraying combustion heating, is similar to that of light oil burners, is developed, practically applied and continuously improved after years, particularly the automatic control and application technology of the burners are perfect, and the discharged products after combustion can meet the environmental protection requirement, but the defects are that the heat value of clean fuel is not high, the heat load of the burners is not favorable, the heating temperature can not meet the requirement in cold weather, the combustion temperature is not high mainly due to low combustion temperature, and the consumption is high. The main problem is the low calorific value of the clean fuel itself. The clean fuel comprises liquid fuel such as gasoline, diesel oil and the like.

Disclosure of Invention

The invention aims to provide a gasification type combustion head which can improve the combustion temperature of clean fuel, improve the utilization rate of the clean fuel, reduce the heat loss of the clean fuel and has obvious energy-saving and environment-friendly effects.

The technical scheme of the invention is as follows: gasification formula combustion head, characterized by: the combustion device comprises a combustion cylinder, wherein a sleeve is sleeved outside the combustion cylinder, two ends of the sleeve are fixedly connected with opposite ends of the combustion cylinder in a sealing manner, an annular gas-liquid chamber is arranged between the combustion cylinder and the sleeve, the lower part of the rear end of the gas-liquid chamber is connected with a liquid injection pipe, and the upper part of the front end of the gas-liquid chamber is connected with a gas-liquid outlet pipe; the center of the inner side of the combustion cylinder is provided with an air injection pipe, the front end of the air injection pipe is connected with a gas-liquid outlet pipe, the rear end of the air injection pipe is provided with a spray head, and a plurality of spray holes are uniformly distributed along the periphery of the spray head; the jet pipe is uniformly provided with a plurality of heat absorbing plates along the circumference, one end of each heat absorbing plate is opposite to the jet pipe, a gap is arranged between each heat absorbing plate and the jet pipe, and the other end of each heat absorbing plate is fixedly connected with the inner wall of the combustion cylinder.

The front included angle between the jet hole and the axial lead of the gas jet pipe is 42-48 degrees.

The gas-liquid chamber is internally provided with a catalyst body, and the catalyst body is copper foil, copper oxide foil or activated carbon containing 28-32% of cuprous oxide powder.

The outer wall of the sleeve is sleeved with an electric heating ring.

The combustion cylinder, its rear is equipped with an ignition tube sleeve pipe, is equipped with 2 ~ 4 even muscle along week equipartition on this ignition tube sleeve pipe, each links muscle one end and links firmly with the ignition tube sleeve pipe, the other end links firmly with combustion cylinder or sleeve, the sheathed tube mouth of pipe of this ignition tube is relative with the nozzle of combustion cylinder.

The heat absorbing plate is a trapezoidal plate with one end being a right-angle edge, the right-angle edge of the trapezoidal plate is positioned at the front end of the combustion cylinder, the short transverse edge of the trapezoidal plate is opposite to the gas injection pipe, the long transverse edge of the trapezoidal plate is fixedly connected with the inner wall of the combustion cylinder, and the oblique-angle edge of the trapezoidal plate is positioned behind the spray head or the spray hole.

Its front end of trapezoidal plate be equipped with interior angle and be 95 ~ 175 triangle-shaped kink I, two of them summits of triangle-shaped kink I are two extreme points on right angle side in the trapezoidal plate, the third summit of triangle-shaped kink I is the arbitrary point on trapezoidal plate front end 1/3 ~ 1/5 department short horizontal edge.

The front end of the combustion cylinder is provided with a conical fire gathering ring, the wide opening of the fire gathering ring is fixedly connected with the cylinder opening of the combustion cylinder along the circumference in a sealing way, and the narrow opening of the fire gathering ring is an outward-turned horn opening.

The heat absorbing plate is a quadrilateral plate, the outer transverse edge of the quadrilateral plate is fixedly connected with the inner wall of the combustion cylinder, the front end of the outer transverse edge is positioned at the front end of the combustion cylinder, the inner transverse edge of the quadrilateral plate is opposite to the gas jet pipe, the front inclined edge of the quadrilateral plate extends into the fire gathering ring, and the rear inclined edge of the quadrilateral plate is positioned behind the spray head or the spray hole.

The front end of the quadrilateral plate is provided with a triangular bending part II with an inner angle of 95-175 degrees, two vertexes of the triangular bending part II are two end points of a front bevel edge in the quadrilateral plate, and any point on an inner transverse edge from the back to the front 0-1/3 in the quadrilateral plate in the fire gathering circle is taken as a third vertex of the triangular bending part II.

The working mode and principle of the invention are as follows: firstly, preheating a gasification type combustion head, enabling components such as a combustion cylinder, a sleeve, a gas-liquid outlet pipe, a manifold, an ejector pipe and a heat absorbing plate in the gasification type combustion head to reach a specified temperature, generally, visually, each heat absorbing plate reaches scarlet color (about 485-885 ℃), then injecting liquid fuel into the gas-liquid chamber through a liquid injection pipe, continuously gasifying and expanding the liquid fuel at high temperature when the liquid fuel sequentially passes through the gas-liquid chamber, the gas-liquid outlet pipe, the manifold and the ejector pipe, further converting the gasified gas into superheated gas at high temperature, finally, carrying out violent combustion when the gasified gas is sprayed at high speed through spray holes on a spray head and meets the combustion supporting effect of oxygen in the air, and the combustion cylinder, the sleeve, the gas-liquid outlet pipe, the manifold and the ejector pipe are heated to gasify the liquid fuel during combustion, and the work is carried out.

The invention has the advantages that: the liquid fuel is heated to be gas for burning, compares traditional atomizing burning and more can save fuel, and uses under the condition of the same liquid fuel, the liquid fuel is gasified the back in this application, becomes superheated gas, and its combustion temperature is higher, and clean fuel's high-usage, heat scatter and disappear for a short time, and energy-concerving and environment-protective effect is showing.

The nozzle with the front included angle of 42-48 degrees can enable the sprayed gasified fuel to be sprayed and combusted along with the air flow direction, so that air resistance is avoided, and the combustion effect is better.

When the alcohol-based environment-friendly fuel is used as the liquid fuel, water with a proper proportion can be added into the fuel, when the heat absorbing plate is burnt to be scarlet, the catalyst can catalytically decompose the water in the liquid fuel into hydrogen and oxygen to support combustion, the liquid fuel is decomposed into combustible gas in the presence of carbon, the flame temperature can be further increased, the actual measurement shows that 6000kcal/Kg of alcohol-based environment-friendly fuel (modified alcohol-based environment-friendly fuel disclosed by Chinese patent application No. ZL 201110066595.7) is gasified and combusted after water is added, the flame temperature can reach 1065 ℃, and is 235 ℃ higher than that of other fuel with 10000kcal/Kg which is atomized and combusted.

The gasification type combustion head can quickly reach the working temperature by utilizing the electric heating ring, the starting is quick, the assistance of other heat sources is not needed, and the energy consumption is low.

The ignition tube sleeve can be connected with an ignition tube on the atomization burner, namely, the gasification type combustion head is arranged at the front end of the atomization burner, so that the tube opening of the ignition tube of the atomization burner is opposite to the tube opening of the combustion tube, and the central axes of the ignition tube sleeve and the tube opening of the combustion tube tend to coincide; based on the structure, 1, the atomization burner can be used for heating the part of the gasification burner to enable the part to reach the starting temperature, and the atomization burner can be closed after the gasification burner is started; 2. the two unification of atomizing combustor and a combustion section of thick bamboo constitute the double-section gasification formula burner of combined type, when using alcohol group environmental protection fuel as liquid fuel, the flame temperature that the atomizing burning of first section and second section gasification decomposition burning obtained is higher, this structure with when the catalyst body structure uses in combination, can mix the water of appropriate proportion in alcohol group environmental protection fuel, the flame temperature of obtaining is far higher than not adding water modified alcohol group environmental protection fuel.

The larger area of the front part of the trapezoidal plate can increase the heat absorption area, the area of the bevel edge at the rear part is gradually gathered to avoid losing heat due to the air entering, the heat absorption and heat conduction effect of the shape is better, the heat loss is less,

triangle-shaped kink I can guide the air current of spouting burning to have certain revolving force, and after the gas and the gas-liquid formation rotator of matching, enable the gas density with the volume and strengthen, increased oxygen content, make the burning more abundant, flame concentrates on vigorously, and combustion temperature is higher.

The fire gathering ring compresses the burning gas through the principle of gathering fire in a furling way, so that the burning gas has higher density, higher flow speed and higher oxygen content, the outlet temperature of the burning head and the flame temperature can be effectively improved, and meanwhile, longer flame can be obtained.

One end of the quadrilateral plate extends into the fire gathering ring to obtain high-temperature heat energy to keep the working efficiency of the combustion head. Triangle-shaped kink II enable the compressed combustion gas pressurization rotation in gathering the fire circle, further increase combustion gas's density and oxygen content, can obtain forward rotatory powerful, the firepower is violent and spout the longer flame of burning distance, further increase environmental protection and energy saving effect.

Practice proves that under the condition of using the same liquid fuel, the temperature of flame generated by gasification combustion is 250-350 ℃ higher than that of flame generated by traditional atomization combustion, and the thermal efficiency of the gasification combustion head is high.

Drawings

FIG. 1 is a schematic view of the internal structure of the gasification burner head in the pitch direction.

Fig. 2 is a schematic sectional view along a-a in fig. 1.

Fig. 3 is an enlarged schematic view of a portion B of fig. 1.

FIG. 4 is a front end elevational view of the gasification burner head of the present invention.

Fig. 5 is a rear view of fig. 4.

FIG. 6 is a schematic view of another configuration of the gasification burner head of the present invention.

Fig. 7 is a left side view of fig. 6.

FIG. 8 is a schematic view of the assembly of the gasification burner head and the atomizing burner of the present invention.

Fig. 9 is a schematic view of the structure of the heat absorbing plate of the present invention which is a trapezoidal plate.

Fig. 10 is a top view of fig. 9.

Fig. 11 is a schematic view of the structure of the heat absorbing plate of the present invention, which is a quadrilateral plate.

In the figure, 1 sleeve, 2 zirconium cotton heat preservation layer, 3 gas-liquid chamber, 4 catalyst, 5 combustion cylinder, 6 gas-liquid outlet pipe, 7 manifold, 8 gas ejector pipe, 9 spray hole, 10 spray head, 11 heat absorbing plate, 12 liquid injection pipe, 13 spray hole axial lead, 14 front included angle, 15 gas ejector pipe axial lead, 16 ignition tube sleeve, 17 connecting rib, 18 rear inclined edge, 19 quadrilateral plate, 20 outer transverse edge, 21 inner transverse edge, 22 electric heating ring, 23 front inclined edge, 24 fire gathering ring, 25 horn mouth, 26 atomizing burner, 27 ignition tube, 28 trapezoidal plate, 29 long transverse edge, 30 right-angle side, 31 triangle bending part I, 32 short transverse edge, 33 inclined angle side, 34 inner angle, 35 triangle bending part II.

Detailed Description

The gasification type combustion head comprises a combustion cylinder 5, wherein a sleeve 1 is sleeved outside the combustion cylinder, two ends of the sleeve are fixedly connected with opposite ends of the combustion cylinder in a sealing way, an annular gas-liquid chamber 3 is arranged between the combustion cylinder and the sleeve, the lower part of the rear end of the gas-liquid chamber is connected with a liquid injection pipe 12, and the upper part of the front end of the gas-liquid chamber is connected with a gas-liquid outlet pipe 6; the center of the inner side of the combustion cylinder is provided with an air injection pipe 8, the front end of the air injection pipe is connected with a gas-liquid outlet pipe, the rear end of the air injection pipe is provided with a spray head 10, and a plurality of spray holes 9 are uniformly distributed along the periphery of the spray head; the jet pipe is uniformly provided with a plurality of heat absorbing plates 11 along the circumference, one end of each heat absorbing plate is opposite to the jet pipe, a gap is arranged between each heat absorbing plate and the jet pipe, and the other end of each heat absorbing plate is fixedly connected with the inner wall of the combustion cylinder.

The front included angle 14 between the axis 13 of the jet hole and the axis 15 of the jet pipe is 42-48 degrees.

The gas-liquid chamber is internally provided with a catalyst body 4 which is copper foil, copper oxide foil or activated carbon containing 28-32% of cuprous oxide powder.

The sleeve is sleeved with an electric heating ring 22 on the outer wall.

The combustion cylinder, its rear is equipped with an ignition tube sleeve pipe 16, is equipped with 2 ~ 4 even muscle 17 along week equipartition on this ignition tube sleeve pipe, each links muscle one end and links firmly with the ignition tube sleeve pipe, the other end links firmly with combustion cylinder or sleeve, the sheathed tube mouth of pipe of this ignition tube is relative with the nozzle of combustion cylinder.

The heat absorbing plate is a trapezoidal plate 28 with one end being a right-angle side, the right-angle side 30 of the trapezoidal plate is positioned at the front end of the combustion cylinder, the short transverse side 32 of the trapezoidal plate is opposite to the gas injection pipe, the long transverse side 29 of the trapezoidal plate is fixedly connected with the inner wall of the combustion cylinder, and the oblique-angle side 33 of the trapezoidal plate is positioned behind the spray head or the spray holes.

Its front end of trapezoidal plate be equipped with interior angle 34 and be 95 ~ 175 triangle-shaped kink I31, two of them summits of triangle-shaped kink I are two endpoints on the right angle side in the trapezoidal plate, the third summit of triangle-shaped kink I is the arbitrary point on trapezoidal plate front end 1/3 ~ 1/5 department short horizontal edge.

The front end of the combustion cylinder is provided with a conical fire gathering ring 24, the wide opening of the fire gathering ring is fixedly connected with the cylinder opening of the combustion cylinder along the circumference in a sealing way, and the narrow opening of the fire gathering ring is an outward-turned horn-shaped opening 25.

The heat absorbing plate is a quadrilateral plate 19, the outer transverse edge 20 of the quadrilateral plate is fixedly connected with the inner wall of the combustion cylinder, the front end of the outer transverse edge is positioned at the front end of the combustion cylinder, the inner transverse edge 21 of the quadrilateral plate is opposite to the gas ejector pipe, the front inclined edge 23 of the quadrilateral plate extends into the fire gathering ring, and the rear inclined edge 18 of the quadrilateral plate is positioned behind the spray head or the spray hole.

The front end of the quadrilateral plate is provided with a triangular bending part II 35 with an inner angle of 95-175 degrees, two vertexes of the triangular bending part II are two end points of a front bevel edge in the quadrilateral plate, and any point on an inner transverse edge from the back to the front 0-1/3 in the quadrilateral plate in the fire gathering circle is taken as a third vertex of the triangular bending part II.

The gasification burner (hereinafter referred to as burner) of the present application is further described with reference to the accompanying drawings:

as shown in fig. 1 to 5, in the present application, the front refers to one end of the combustion head that sprays flame outwards when in operation, and the rear refers to one end of the combustion head that sucks air to support combustion when in operation;

2-3 gas-liquid outlet pipes are arranged; the front end of the gas injection pipe is simultaneously connected with each gas-liquid outlet pipe through a manifold 7, namely one end of the manifold is communicated with the gas injection pipe, and the other end of the manifold is simultaneously communicated with each gas-liquid outlet pipe.

The combustion cylinder, the sleeve, the liquid injection pipe, the gas-liquid outlet pipe, the manifold, the gas injection pipe, the heat absorption plate, the fire gathering ring and the like are cast by cast iron materials or high-temperature resistant cast steel materials or high-temperature resistant white steel materials, can also be formed by rolling and welding iron plates or steel plates or high-temperature resistant white steel plates or titanium alloy plates, and can also be formed by turning and then welding iron pipes or steel pipes or various high-temperature resistant white steel pipes or titanium and titanium alloy pipes and the like by a lathe according to the design requirements. The heat absorbing plate is cut according to the shape and size required by design, and the material which can resist the temperature of more than 1300 ℃ is fixed on the inner wall of the combustion cylinder by welding, so that the gasification effect is prevented from being damaged by burning in long-term use;

the inner space of the front section of the combustion cylinder is a combustion chamber, the inner space of the rear section of the combustion cylinder is an air inlet chamber, and the spray head is positioned in the combustion chamber;

the sprayer can be made of a copper hexagonal nut, or a white steel nut, an iron nut or a copper nut, one end of the nut is sealed by welding, the other end of the nut is in threaded connection with the rear end of the gas ejector pipe by using a threaded screwing structure, six surfaces of the nut are respectively punched, and all holes are communicated with the gas ejector pipe; the nozzle can also adopt a commercial high-temperature resistant multi-pipe nozzle, and the nozzle is arranged at the rear end of the gas injection pipe, the aperture size and the number of holes are determined according to the actual requirement, but the gas is ensured to be uniformly distributed and combusted.

The gas-liquid outlet pipe, the manifold and the gas injection pipe are fixedly connected by welding and sealing or are bent or molded into a whole, and the liquid injection pipe is communicated with the gas-liquid outlet pipe, the manifold and the gas injection pipe in sequence through the cavity.

The volume of the gas-liquid chamber is determined according to parameters such as the size of a combustion head, the feeding pressure and the like, but attention needs to be paid to reducing the delayed combustion phenomenon caused by the delayed injection of injected fuel due to the overlarge volume of the combustion chamber as much as possible, the wall thickness of each pipe or cylinder and the number and thickness of each heat absorbing plate are determined according to actual requirements such as combustion heat energy requirements and the like, and the fire gathering ring is also determined according to actual requirements and parameters such as the size, the length, the thickness and the like.

The jet direction of the jet orifice is forward jet, and the forward included angle is the included angle formed by the axial lead of the jet orifice and the axial lead of the jet pipe and positioned in the front. The forward included angle between the axial lead of each spray hole and the axial lead of the gas spray tube is preferably 45 DEG

The outer wall of the sleeve is wrapped with a zirconium cotton heat-insulating layer 2. The heat energy of the gasification type combustion head can be wrapped in the gasification type combustion head, so that the heat energy of the gasification type combustion head is fully utilized. The zirconium cotton heat-insulating layer is made of a commercially available material and can be cut after purchase.

After the copper foil is loaded into the gas-liquid cavity, and the gas-liquid cavity is closed, when the gasification type combustion head is used, the gasification type combustion head is preheated to reach the working temperature, the combustion head is ignited to work for half an hour, and copper oxide layers are generated on the surfaces of the copper foil in the gas-liquid cavity, so that the copper foil can be used as a catalyst, or the copper foil which is subjected to copper oxide in a heating mode is directly loaded into the gas-liquid cavity.

The preparation method of the activated carbon containing 28-32% of cuprous oxide powder comprises the following steps: mixing commercially available cuprous oxide powder and commercially available activated carbon according to the proportion, preferably mixing 30% of cuprous oxide powder and 70% of activated carbon, uniformly mixing the cuprous oxide powder and the activated carbon to obtain a mixture, uniformly adding liquid silica gel with the same total amount of 28-32% of the mixture into the mixture under continuous stirring, preferably adding 30% of the liquid silica gel, continuously stirring uniformly to obtain a sticky substance, and pressing the sticky substance into a strip, a rod or a sheet which can be placed in a gas-liquid chamber by using a mold.

As shown in fig. 6 to 8, the electric heating ring is a commercially available product, is purchased according to the diameter of the sleeve, and is used according to the specification, and is a device that can convert electric energy into heat energy to heat an object, and can obtain a higher temperature by electric heating, and can heat quickly, and can easily realize automatic control and remote control of the temperature, compared with general fuel heating. The structure of application electric heating circle, supporting AC fan or direct current fan carry out initiative air feed again, use solenoid valve and automatic control facility to carry out intelligent control, enable the combustion head of this application and use in the food and beverage service industry.

The igniter tube sleeve is used for being connected with the igniter tube 27 in the atomizing burner 26, the atomizing burner is a commercial product, and a proper model is selected for use according to requirements; the utility model discloses a burning torch, including burning torch sleeve pipe, igniting torch sleeve pipe, the burning torch sleeve pipe is used for embracing atomizing burner's ignition tube to fix the burning head at atomizing burner's ignition tube front end through linking the muscle, the sheathed tube size of ignition tube and size depend on the external diameter of ignition tube promptly, this ignition tube sleeve pipe can purchase the existing half knot formula metal hoop of selling, convenient to detach also can use annular metal ring, links firmly the piece or the mode is fixed on atomizing burner's ignition tube through conventionalities such as jackscrew or bolt.

When the atomizing burner is directly matched with the burner head for use, ignition failure, closing of the burner, high temperature of the burner head, flame lag and return of burning-out accessories inside the burner and explosion caused by backflow during burning can be occasionally caused, the fire tube sleeve is connected with the combustion cylinder or the sleeve through 2-4 connecting ribs, and a large amount of external air is supplemented at the gaps of the connecting ribs along the periphery, so that combustion airflow is sprayed along the design direction of the burner head, the technical problem is perfectly solved,

as shown in fig. 9 and 10, on the trapezoidal plate, any point a at the front end 1/3-1/5 of the short transverse edge and two end points b and c of the right-angle edge surround to form a triangular area, wherein the point a is used as a folding point on the short transverse edge, the line ab is used as a folding line, and the included angle between the short transverse edge and the other short transverse edges of the line ac of the trapezoidal plate in the triangular area is 95-175 degrees, and the included angle is preferably 166 degrees. The upward bending directions of the trapezoidal plates in the same combustion cylinder are the same.

As shown in figure 11, any point d on the inner transverse edge from the back to the front 0-1/3 of the quadrilateral plate in the fire gathering circle and two end points e and f of the front oblique edge form a triangular area in a surrounding mode, wherein the point d is used as a folding point on the inner transverse edge, a line de is used as a folding line, and an included angle between the inner transverse edge and the rest inner transverse edges of the segments of the quadrilateral plate to the line df in the triangular area is 95-175 degrees, preferably 125-155 degrees, particularly 135 degrees and 145 degrees. In fig. 11, the egth line is a dividing line, and the right end (front end) of the egth line is positioned on one side of the quadrangular plate in the flame trap, and the left end (rear end) is positioned on one side of the quadrangular plate in the combustion cylinder. The bending directions of the quadrilateral plates in the same combustion cylinder are the same.

No matter the atomizing burner or the electric heating ring is used for enabling the relevant parts of the combustion head to reach the requirements of working temperature, then the combustion head can reliably burn heat to heat the heat absorbing plate, the heat absorbing plate transfers the heat to the gas-liquid cavity to heat the liquid fuel, the liquid fuel is gasified and decomposed, and the gas moves to the gasification nozzle to be uniformly burned. For example: use atomizing combustor ignition tube spun flame to preheat the part of combustion head, after reaching the requirement of preheating, open the fuel pump valve, to injecting liquid fuel in the combustion head, by atomizing flame, light the combustion head, and auxiliary assembly such as accessible fan increases the amount of wind, treat that flame combustion stabilizes the back, can close the atomizing combustor, only satisfy the required heat energy of demand self with combustion head gasification burning, also can not close the atomizing combustor, make one section fire of atomizing combustor and the two-stage fire of combustion head use simultaneously, supply with required facility. Therefore, this application combustion head not only can independently gasify the fuel and carry out decomposition formula high temperature combustion, also can supply with the production atomizing burner producer, install this application combustion head on atomizing burner, the combination is the gasification decomposition formula combustor that can gasify decomposition fuel, this application combustion head is verified through a large amount of applications, can match different power combustion heads with the miniwatt combustor, the purpose of using the combustor only preheats the combustion head, really make the absorber plate become stable temperature, mainly lean on the superhigh temperature that produces behind the combustion head gasification combustion to realize, make the absorber plate continuously be the scarlet, in use, just can modulate a little at the beginning, increase gradually again, it is accurate to transfer required heat at last.

The working principle of the combustion head of the application is as follows: the combustion head is preheated by the first section fire of the atomizing combustor to reach the working temperature, the combustion head can be ignited, the second section fire can be started, and when the liquid fuel containing water or other fuels are pumped to the feeding pipe to flow into the bottom of the gas-liquid chamber. After the liquid fuel is pumped to the gas-liquid chamber, the fuel at the lower part of the gas-liquid chamber is liquid, the fuel at the middle part is in a gas-liquid mixed state, most of the fuel at the upper part is gasified and decomposed into gas, if no 100% of the fuel is gasified, the residual liquid fuel passing through a gas-liquid outlet pipe, a manifold and an air injection pipe of a scarlet is also gasified at high temperature, and the gasified gas becomes superheated gas, so that water is more easily decomposed into hydrogen and oxygen. As long as spout just can be even violent burning in the orifice from the shower nozzle, its operating mode just more stable more for above-mentioned principle makes this application combustion head operating time, and the gas that gasification burning combustion gas discharged is environmental protection more, more energy-conserving than the gas that atomizing burning produced, can burn constantly in cycles, constantly for being heated the facility heating and accomplish the demand, finally realizes fuel saving and environmental protection. But has certain technical requirements on the liquid fuel, namely, mechanical impurities cannot be generated; and secondly, chemical impurities and colloid cannot exist, otherwise, an oil way and a cavity are blocked. The burner head of the present application is particularly suitable for use with fuels made in chinese patent application nos. ZL201110066595.7 and ZL 201111100764377.6.

The gasification and decomposition route of the invention is as follows: igniting the atomizing burner → preheating the burning head → preheating to meet the requirement → igniting the burning head → gasifying and decomposing the gas → gas-liquid passage → superheated gas → uniform burning → heated facility → after the burning head works stably or closing the atomizing burner → only the burning head heats the heated facility → meeting the user requirement.

Compared with the prior art, the gasification combustion mode has the advantages that the design structure is simple, the gasification combustion mode is created, the original atomization combustion mode is changed, the combustion firepower of the gasification combustion mode is strong, the rotation is concentrated, the combustion temperature is high (higher than the atomization combustion mode by about 250-350 ℃), the heat loss is small, the fuel consumption is low, the gasification combustion mode is safe and practical, and the thermal efficiency is high. The modified alcohol-based environment-friendly fuel can be gasified and combusted under the gasification and catalysis effects of the combustion head by adding part of high-boiling residues or other liquid fuels. The fuel is saved, the heat efficiency is greatly improved, the discharged flue gas meets the requirements of national environmental protection standards, the use is safe and reliable, the applicability is strong, the application prospect is wide, and the fuel is a product required by people.

Claims (10)

1. Gasification formula combustion head, characterized by: the combustion device comprises a combustion cylinder (5), wherein a sleeve (1) is sleeved outside the combustion cylinder, two ends of the sleeve are fixedly connected with opposite ends of the combustion cylinder in a sealing manner, an annular gas-liquid chamber (3) is arranged between the combustion cylinder and the sleeve, the lower part of the rear end of the gas-liquid chamber is connected with a liquid injection pipe (12), and the upper part of the front end of the gas-liquid chamber is connected with a gas-liquid outlet pipe (6); the center of the inner side of the combustion cylinder is provided with an air injection pipe (8), the front end of the air injection pipe is connected with a gas-liquid outlet pipe, the rear end of the air injection pipe is provided with a spray head (10), and a plurality of spray holes (9) are uniformly distributed along the periphery of the spray head; the jet pipe is uniformly provided with a plurality of heat absorbing plates (11) along the circumference, one end of each heat absorbing plate is opposite to the jet pipe, a gap is arranged between each heat absorbing plate and the jet pipe, and the other end of each heat absorbing plate is fixedly connected with the inner wall of the combustion cylinder.

2. The gasification burner head of claim 1, wherein: the front included angle (14) between the jet holes and the axial lines (13) and (15) of the gas jet pipes is 42-48 degrees.

3. The gasification burner head of claim 1, wherein: the gas-liquid chamber is internally provided with a catalyst body (4), and the catalyst body is copper foil, copper oxide foil or activated carbon containing 28-32% of cuprous oxide powder.

4. The gasification burner head of claim 1, wherein: the outer wall of the sleeve is sleeved with an electric heating ring (22).

5. The gasification burner head of claim 1, wherein: the combustion cylinder, its rear is equipped with an ignition tube sleeve pipe (16), this ignition tube sleeve pipe is gone up along week equipartition and is equipped with 2 ~ 4 even muscle (17), each even muscle one end links firmly with the ignition tube sleeve pipe, the other end links firmly with combustion cylinder or sleeve, this ignition tube sheathed tube mouth of pipe is relative with the nozzle of combustion cylinder.

6. The gasification burner head of claim 1, wherein: the heat absorbing plate is a trapezoidal plate (28) with one end being a right-angle side, the right-angle side (30) of the trapezoidal plate is located at the front end of the combustion cylinder, the short transverse side (32) of the trapezoidal plate is opposite to the gas injection pipe, the long transverse side (29) of the trapezoidal plate is fixedly connected with the inner wall of the combustion cylinder, and the oblique-angle side (33) of the trapezoidal plate is located behind the spray head or the spray hole.

7. The gasification burner head of claim 6, wherein: its front end of trapezoidal plate be equipped with interior angle (34) for triangle-shaped kink I (31) of 95 ~ 175, two of them summits of triangle-shaped kink I are two endpoints of right angle limit in the trapezoidal plate, the third summit of triangle-shaped kink I is trapezoidal plate front end 1/3 ~ 1/5 department short transversal arbitrary point on the edge.

8. The gasification burner head of claim 1, wherein: the front end of the combustion cylinder is provided with a conical fire gathering ring (24), the wide opening of the fire gathering ring is fixedly connected with the cylinder opening of the combustion cylinder along the circumference in a sealing way, and the narrow opening of the fire gathering ring is an outward-turned bell mouth (25).

9. The gasification burner head of claim 1, wherein: the heat absorbing plate is a quadrilateral plate (19), an outer transverse edge (20) of the quadrilateral plate is fixedly connected with the inner wall of the combustion cylinder, the front end of the outer transverse edge is positioned at the front end of the combustion cylinder, an inner transverse edge (21) of the quadrilateral plate is opposite to the gas jet pipe, a front oblique edge (23) of the quadrilateral plate extends into the fire gathering ring, and a rear oblique edge (18) of the quadrilateral plate is positioned behind the spray head or the spray hole.

10. The gasification burner head of claim 9, wherein: the front end of the quadrilateral plate is provided with a triangular bending part II (35) with an inner angle of 95-175 degrees, two vertexes of the triangular bending part II are two endpoints of a front bevel edge in the quadrilateral plate, and any point on an inner transverse edge from the back to the front 0-1/3 in the quadrilateral plate in the fire gathering circle is taken as a third vertex of the triangular bending part II.

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