CN108050509B - It is a kind of based on liquid ethanol-natural gas composite fuel combustion furnace and its method - Google Patents

It is a kind of based on liquid ethanol-natural gas composite fuel combustion furnace and its method Download PDF

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Publication number
CN108050509B
CN108050509B CN201711237601.4A CN201711237601A CN108050509B CN 108050509 B CN108050509 B CN 108050509B CN 201711237601 A CN201711237601 A CN 201711237601A CN 108050509 B CN108050509 B CN 108050509B
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CN
China
Prior art keywords
ethyl alcohol
pipe
ethanol
composite fuel
combustion air
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CN201711237601.4A
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Chinese (zh)
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CN108050509A (en
Inventor
崔秀萍
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谢丽萍
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Priority to CN201711237601.4A priority Critical patent/CN108050509B/en
Publication of CN108050509A publication Critical patent/CN108050509A/en
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Publication of CN108050509B publication Critical patent/CN108050509B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C1/00Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
    • F23C1/08Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air liquid and gaseous fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00Combustion apparatus characterised by the shape of the combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08Disposition of burners
    • F23C5/32Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00Combustion apparatus characterised by arrangements for air supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00Feeding or distributing other fuel to combustion apparatus
    • F23K5/002Gaseous fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00Feeding or distributing other fuel to combustion apparatus
    • F23K5/02Liquid fuel
    • F23K5/14Details thereof
    • F23K5/22Vaporising devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L15/00Heating of air supplied for combustion
    • F23L15/04Arrangements of recuperators
    • F23L15/045Arrangements of recuperators using intermediate heat-transfer fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H7/00Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release
    • F24H7/02Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water
    • F24H7/025Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water with fluid fuel
    • F24H7/0266Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water with fluid fuel the transfer fluid being a liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates, burners, or heating elements
    • F24H9/1809Arrangement or mounting of grates, burners, or heating elements for water heaters
    • F24H9/1836Arrangement or mounting of grates, burners, or heating elements for water heaters fluid combustible heating means
    • Y02E20/348

Abstract

The invention discloses a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, including the furnace body that burns, and includes composite fuel combustion chamber in the burning furnace body, and the composite fuel combustion chamber is taper end conical round table structure directed downwardly;Composite fuel combustion chamber lower end is concentric to be provided with flame jet, and the flame direction of flame jet is vertically upward;Composite fuel combustion chamber upper end is smoke evacuation wall, is provided with several smoke outlets on the smoke evacuation wall;Structure of the invention is simple, and using cone cell truncated cone-shaped combustion chamber, the guidance of common natural gas injection flame is that flame heating surface (area) (HS becomes larger at heating tube advance that is horn-like, and being attached at cone-type spiral distribution by cooperation ethyl alcohol gasification cone.

Description

It is a kind of based on liquid ethanol-natural gas composite fuel combustion furnace and its method

Technical field

The invention belongs to field of furnaces more particularly to a kind of based on liquid ethanol-natural gas composite fuel combustion furnace And its method.

Background technique

Heat conducting oil boiler carries out liquid phase circulation using conduction oil as medium, using hot-oil circulation oil pump forced medium, by thermal energy It is conveyed to after heating equipment and returns again to heating furnace and reheat, thermal energy is conveyed to and returns again to heating furnace after heating equipment and adds again Heat has and obtains high operating temperature under low pressure, and can run to medium and carry out high-accuracy control work;It is existing It is mainly to spray to combustion chamber after simple combustion air and combustion gas mixing in the combustion chamber of heat conducting oil boiler, due to normal injection Flame is unable to heating to the heating tube in existing regular cylindrical combustion chamber for substantially uniformity, causes heat to make full use of, simultaneously Also have the phenomenon that Some gases are not fully utilized, are discharged with flue gas, cause energy waste;

Existing combustion furnace general using pure gas fuel simultaneously, however ethyl alcohol is a kind of liquid renewable energy Source, under the pressure of liquid character, existing combustion furnace chamber structure can not adapt to liquid ethanol fuel.

Summary of the invention

Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of natural based on liquid ethanol- The combustion furnace of gas composite fuel can improve liquid ethanol calory burning utilization rate.

Technical solution: to achieve the above object, of the invention is a kind of based on the burning of liquid ethanol-natural gas composite fuel Furnace, including burning furnace body, include composite fuel combustion chamber in the burning furnace body, and the composite fuel combustion chamber is taper end Conical round table structure directed downwardly;Composite fuel combustion chamber lower end is concentric to be provided with flame jet, the spray of flame jet Fiery direction is vertically upward;Composite fuel combustion chamber upper end is smoke evacuation wall, is provided with several smoke outlets on the smoke evacuation wall;

It further include ethyl alcohol gasification cone in the composite fuel combustion chamber;The ethyl alcohol gasification cone outer wall is in tip circle directed downwardly Wimble structure;The ethyl alcohol gasification cone and the concentric setting in composite fuel combustion chamber, and the epiconus of ethyl alcohol gasification cone And the flame jet spacing is held to be arranged;It is axial that the circular cone bottom surface of the ethyl alcohol gasification cone is located at the composite fuel combustion chamber The middle part in direction;The ethyl alcohol gasification cone is connected at least through a support rod and composite fuel Inner Wall of Combustion Chamber support;

It further include hot oil heating tube in the composite fuel combustion chamber, the tapered coiled coil shape patch of hot oil heating tube Invest the conical inboard wall of the composite fuel combustion chamber.

Further, the inside of the ethyl alcohol gasification cone further includes conical ethyl alcohol gasification chamber;In the ethyl alcohol gasification chamber Concentric gasify in the ethyl alcohol bores inside, and ethyl alcohol gasification chamber lower end is tip;The circular cone bottom surface of the ethyl alcohol gasification chamber Locate it is concentric be provided with disk of igniting, described ignite forms annular flame between disk outer profile and ethyl alcohol gasification chamber upper end profile Channel, the waist inner wall of the ethyl alcohol gasification chamber are provided with the horizontal water conservancy diversion land of a circle, the water conservancy diversion land and the circle of igniting Alcohol vapour adapter cavity is formed between disk;

It further include ethanol liquid ingress pipe;The ethanol liquid ingress pipe and the composite fuel combustion chamber axis coaxle heart Setting, the ethanol liquid ingress pipe extends downwardly into the composite fuel combustion chamber from the flame jet contralateral side, described Check valve is additionally provided in ethanol liquid ingress pipe, check valve lower end is outlet end, and the ethanol liquid ingress pipe protrudes into group The end closed in fuel combustion chamber is ethanol liquid ejection end, and ethanol liquid ejection end protrudes into the ethyl alcohol gasification chamber, and The ethanol liquid ejection end is located at below the water conservancy diversion land;Second outside the other end connection of the ethanol liquid ingress pipe Alcohol supply pipe;Alcohol vapour drainage channel is formed between the outer wall of the ethyl alcohol supply pipe and the water conservancy diversion land inner wall.

It further, further include importing temperature protection pipe, the second with the concentric ethyl alcohol of the ethanol liquid ingress pipe The lower end that alcohol imports temperature protection pipe is protruded into the composite fuel combustion chamber;It is that internal diameter is big that the ethyl alcohol, which imports temperature protection pipe, In the heating resisting metal pipe structure of the ethanol liquid ingress pipe, and the ethyl alcohol imports the setting of temperature protection pipe sealing two ends;

The ethanol liquid ingress pipe is concentric to pass through ethyl alcohol importing temperature protection pipe, the ethanol liquid ingress pipe Outer wall and the ethyl alcohol import between temperature protection inside pipe wall and are provided with two symmetrical shims along its length, described in two Shim will be separated into oil inlet passage and oil discharge passage in the pipe of ethyl alcohol importing temperature protection pipe;Under two shims End hollow out is provided with via hole;The via hole is by the oil inlet passage and oil discharge passage mutual conduction;The oil inlet passage is remote The cold conduction oil fuel feed pump outside the conducting connection of one end from the via hole;The oil discharge passage far from the via hole one End conducting connects the oil inlet end of the hot oil heating tube;The lower end oil outlet conducting thermal conductivity hot oil output of the hot oil heating tube Pipe.

Further, several exhaust smoke holes are along composite fuel burning chamber axis circumferentially array distribution;The smoke outlet It is formed in the smoke evacuation wall and leads cigarette channel;Have on the upside of the smoke evacuation wall and store smoke chamber, the storage smoke chamber is led to by several cigarettes of leading The composite fuel combustion chamber is connected in road;The storage smoke chamber upper end conducting is connected with pipe.

Further, further include fuel burner nozzle, main gas supply pipe, combustion air supply pipe, combustion air current divider box, help Fire air heat-exchange pipe, combustion air manifold, hot combustion air conduit, heat exchange box and smoke exhaust pipe;

The combustion air supply pipe conducting connects the combustion air current divider box, the outlet of the combustion air current divider box End is connected the inlet end of several combustion air heat exchanger tubes, each combustion air heat exchanger tube outlet side be connected jointly described in help Air flow collection case is fired, the outlet side of the combustion air manifold connects the combustion gas by the hot combustion air conduit conducting The combustion air inlet end of burner;The gas inlet end of the fuel burner nozzle connects the main gas supply pipe;The combustion gas is burnt The flame jet of mouth is corresponding in the composite fuel combustion chamber of the burning furnace body;

The smoke end of the pipe connects the hot cigarette bending tubes end of the heat exchange box, and the smoke end of the heat exchange box connects row Smoke pipe, the smoke exhaust pipe conducting are extraneous;Each combustion air heat exchanger tube passes through the heat exchanging chamber in the heat exchange box.

Further, the combustion furnace body exterior is in vertical cylindrical structure;The heat exchange box is vertically arranged length Closed case structure, and heat exchange box is set side by side with the burning furnace body;

The combustion air heat exchanger tube is metal heat-exchange capillary structure, and several combustion air heat exchanger tubes form pencil heat exchanger tube Group;And several combustion air heat exchanger tubes pass through the heat exchanging chamber in the heat exchange box along the vertical direction;The smoke end of the pipe Conducting heat exchange box cavity upper end;Smoke exhaust pipe is connected in the heat exchange box cavity lower end, and the smoke end connection flue gas of the smoke exhaust pipe is net Makeup is set.

Further, the angle between the rotary table axis and rotary table bus of the composite fuel combustion chamber is α, the ethyl alcohol Angle between the circular cone axis and element of cone of gasification cone is β;Wherein 20 °≤β≤25 ° β and α while satisfaction ,+3 ° of α=β.

Further, the angle between the circular cone axis and element of cone of the ethyl alcohol gasification chamber is γ, and wherein γ meets + 10 ° of γ=β.

Further, combustion air supply pipe continuously supplies combustion-supporting sky to combustion air manifold under air blower effect Gas, then the flue gas shunting in combustion air manifold is into each combustion air heat exchanger tube, and the hot cigarette in heat exchange box is to fasciculation Heat exchange pipe group heating, the combustion air being then heated imported into combustion air manifold, and then combustion air afflux jointly The combustion air converged in case imported into the air inlet end of fuel burner nozzle by hot combustion air conduit, imports in fuel burner nozzle Air be excess air, excessive combustion air make the combustion air entered in composite fuel combustion chamber sufficiently with together enter Balance partial oxidation is gone back after gas reaction, main gas supply pipe continuously injects combustion gas, combustion air to fuel burner nozzle at the same time It is sprayed at flame jet after converging in fuel burner nozzle with combustion gas, at this time the electronic lighter starting at flame jet, fire Flame nozzle forms jet flames;Blocking above flame by ethyl alcohol gasification cone end at this time, makes flame scatter in horn-like, And even flame is attached at the lower section heating tube rising of cone-type spiral distribution, and heats to the heating tube of leading portion, due to injection It is excessive combustion air, gas consumption is rapid, flame when at the circular cone bottom surface for continuing to rise to ethyl alcohol gasification cone of flame Intensity starts to weaken;Ethyl alcohol supply pipe continuously imports liquid ethanol to ethanol liquid ingress pipe at this time, and liquid ethanol is from ethyl alcohol The ethanol liquid ejection end of liquid ingress pipe sprays, and sprays in the ethyl alcohol gasification chamber inside ethyl alcohol gasification cone, due to ethanol gas Change cone lower end to be heated by flame direct-injection, ethyl alcohol gasification cone is continuous high temperature state, the liquid second being ejected into ethyl alcohol gasification chamber Alcohol gasifies rapidly, and causes to form high-pressure ethanol steam in ethyl alcohol gasification chamber, and high-pressure ethanol steam is drawn by alcohol vapour immediately Circulation road enters in alcohol vapour adapter cavity, and alcohol vapour is further heated to ignition point in alcohol vapour adapter cavity, Immediately from annular flame channel at the horn-like ejection of divergence expression, since there are also a large amount of balance oxygen, sprays in composite fuel combustion chamber High temperature alcohol vapour out quickly forms horn-like jet flames, and the upper section heating tube for being attached at cone-type spiral distribution is advanced, And upper section heating tube is heated, finally formed flue gas is discharged by smoke outlet;

The cold oil come out from heating equipment is continuously imported into ethyl alcohol and imports temperature by cold conduction oil fuel feed pump in above process It spends in the pipe of protection pipe in oil inlet passage, then conduction oil flows at via hole along oil inlet passage, and the oil in oil inlet passage passes through Via hole flows to oil discharge passage, and then conduction oil flows to the oil inlet end of heating tube from the other end of oil discharge passage, during being somebody's turn to do, out Ethanol liquid between oily channel and oil inlet passage imports pipe outer wall and is surrounded by conduction oil contact, avoids ethanol liquid importing Pipe outer wall gasifies before directly being caused liquid in pipe to spray by flame heating with regard to violent boiling type, in turn results in ethanol liquid ingress pipe The difficult consequence for even damaging equipment is imported, conduction oil conduction oil during by heating tube is heated, is then heated Conduction oil is flowed out from the hot oil oil outlet of heating tube, and flows to heating equipment by circulating pump, is thusly-formed circulation.

The utility model has the advantages that structure of the invention is simple, using the liquid ethanol of renewable energy as one of fuel, be conducive to provide The sustainable development in source, using cone cell truncated cone-shaped combustion chamber, cooperate ethyl alcohol gasification cone by the guidance of common natural gas injection flame at It is horn-like, and the heating tube for being attached at cone-type spiral distribution is advanced, and so that flame heating surface (area) (HS is become larger, more fully to heating tube Heating, while the liquid ethanol imported gasifies in furnace and sprays high temperature alcohol vapour in centre, makes ethanol combustion efficiency more Height heats more uniform.

Detailed description of the invention

Attached drawing 1 is overall structure of the present invention.

Attached drawing 2 is combustion furnace body interior longitudinal direction cut-away diagram;

Attached drawing 3 is combustion furnace body interior transverse direction cut-away diagram;

Attached drawing 4 is burning furnace body bottom view;

Attached drawing 5 is the A of attached drawing 4 to cross-sectional view;

Attached drawing 6 is ethyl alcohol gasification cone partial sectional view;

Attached drawing 7 is that ethyl alcohol imports temperature protection pipe partial interior view.

Specific embodiment

The present invention will be further explained with reference to the accompanying drawing.

It is a kind of as shown in attached drawing 1 to 7 that burning furnace body is included based on liquid ethanol-natural gas composite fuel combustion furnace 15, it include composite fuel combustion chamber 17 in the burning furnace body 15, in the present embodiment, composite fuel combustion chamber 17 is taper end court Under conical round table structure;17 lower end of composite fuel combustion chamber is concentric to be provided with flame jet 7, flame jet 7 Flame direction is vertically upward;17 upper end of composite fuel combustion chamber is smoke evacuation wall 60, is provided on the smoke evacuation wall 60 several Smoke outlet 27;It further include ethyl alcohol gasification cone 14 in the composite fuel combustion chamber 17;Ethyl alcohol gasification 14 outer walls of cone are in tip Conical structure directed downwardly;Ethyl alcohol gasifies cone 14 as heat-resisting material composition in the present embodiment, and 14 and described group are bored in the ethyl alcohol gasification Close the concentric setting of fuel combustion chamber 17, and the conical tip 14.1 and 7 spacing of flame jet of ethyl alcohol gasification cone 14 Setting;The circular cone bottom surface of the ethyl alcohol gasification cone 14 is located at the middle part of 17 axial direction of composite fuel combustion chamber;The second Alcohol gasification cone 14 is connected at least through a support rod 13 and 17 inner wall of composite fuel combustion chamber support;The composite fuel It further include hot oil heating tube 1 in combustion chamber 17, the tapered coiled coil shape of the hot oil heating tube 1 is attached at the composite fuel The conical inboard wall 17.1 of combustion chamber 17;Jet flames is formed at flame jet 7;At this time by 14 point of ethyl alcohol gasification cone above flame The blocking at end makes flame scatter in horn-like, and even flame is attached at the rising of lower section heating tube 1 of cone-type spiral distribution, and The heating tube 1 of lower section is heated, flame heating surface (area) (HS is made to become larger, more fully heating tube is heated.

In the present solution, the inside of ethyl alcohol gasification cone 14 further includes conical ethyl alcohol gasification chamber 4;In the ethyl alcohol gasification chamber 4 Concentric to bore inside 14 in ethyl alcohol gasification, 4 lower end of ethyl alcohol gasification chamber is tip;The circular cone of the ethyl alcohol gasification chamber 4 It is concentric at bottom surface to be provided with disk 72 of igniting, shape between the 4 upper end profile of 72 outer profile of disk and ethyl alcohol gasification chamber of igniting Flame channel 71 is circularized, the waist inner wall of the ethyl alcohol gasification chamber 4 is provided with the horizontal water conservancy diversion land 74 of a circle, the guide ring Alcohol vapour adapter cavity 75 is formed between platform 74 and the disk 72 of igniting;It further include ethanol liquid ingress pipe 6;The ethanol Body ingress pipe 6 and the 17 axis coaxle heart of composite fuel combustion chamber are arranged, and the ethanol liquid ingress pipe 6 is sprayed from the flame 7 contralateral sides of mouth extend downwardly into the composite fuel combustion chamber 17, are additionally provided with check valve in the ethanol liquid ingress pipe 6 80,80 lower end of check valve is outlet end, and it is second that the ethanol liquid ingress pipe 6, which protrudes into the end in composite fuel combustion chamber 17, Alcohol liquid ejection end 9, concrete principle is as follows: its ethanol liquid ejection end 9 protrudes into the ethyl alcohol gasification chamber 4, and the ethyl alcohol Liquid ejection end 9 is located at 74 lower section of water conservancy diversion land;Ethyl alcohol outside the other end connection of the ethanol liquid ingress pipe 6 supplies To pipe 12;Alcohol vapour drainage channel 73 is formed between the outer wall of the ethyl alcohol supply pipe 12 and 74 inner wall of water conservancy diversion land; Its liquid ethanol is sprayed from the ethanol liquid ejection end 9 of ethanol liquid ingress pipe 6, and sprays to the ethyl alcohol inside ethyl alcohol gasification cone 14 In gasification chamber 4, since ethyl alcohol gasifies 14 lower ends of cone by the heating of flame direct-injection, ethyl alcohol gasification cone 14 is continuous high temperature state, spray Gasify rapidly to the liquid ethanol in ethyl alcohol gasification chamber 4 out, and cause to form high-pressure ethanol steam in ethyl alcohol gasification chamber 4, immediately High-pressure ethanol steam is entered in alcohol vapour adapter cavity 75 by alcohol vapour drainage channel 73, and alcohol vapour is in alcohol vapour Ignition point is further heated in adapter cavity 75, immediately from annular flame channel 71 at the horn-like ejection of divergence expression, due to group There are also a large amount of balance oxygen in conjunction fuel combustion chamber, and the high temperature alcohol vapour of ejection quickly forms horn-like jet flames, and pastes The upper section heating tube 1 for investing cone-type spiral distribution is advanced, and is heated to upper section heating tube 1, and the ethyl alcohol gasification structure is by liquid second Alcohol, which is converted to high temperature alcohol vapour and sprays, makes the heat of ethanol combustion generation reach maximum utilization.

It further include importing temperature protection pipe 44 with the concentric ethyl alcohol of the ethanol liquid ingress pipe 6, the ethyl alcohol imports The lower end of temperature protection pipe 44 is protruded into the composite fuel combustion chamber 17;It is that internal diameter is big that the ethyl alcohol, which imports temperature protection pipe 44, In the heating resisting metal pipe structure of the ethanol liquid ingress pipe 6, and the ethyl alcohol imports the setting of 44 sealing two ends of temperature protection pipe; The ethanol liquid ingress pipe 6 is concentric to pass through ethyl alcohol importing temperature protection pipe 44,6 outer wall of ethanol liquid ingress pipe And the ethyl alcohol imports between 44 inner wall of temperature protection pipe and is provided with two symmetrical shims 16 along its length, described in two Shim 16 will be separated into oil inlet passage 10 and oil discharge passage 3 in the pipe of ethyl alcohol importing temperature protection pipe 44;Two described points The lower end hollow out of partition 16 is provided with via hole 18;The via hole 18 is by 3 phase mutual conductance of the oil inlet passage 10 and oil discharge passage It is logical;The oil inlet passage 10 is far from the cold conduction oil fuel feed pump 11 outside one end conducting connection of the via hole 18;It is described go out Oily channel 3 connects the oil inlet end 5 of the hot oil heating tube 1 far from one end conducting of the via hole 18;The hot oil heating tube 1 Lower end oil outlet 5.1 be connected thermal conductivity hot oil efferent duct 24;The structure makes the ethanol between oil discharge passage 3 and oil inlet passage 10 6 outer wall of body ingress pipe is surrounded by conduction oil contact, is avoided 6 outer wall of ethanol liquid ingress pipe and is directly caused pipe by flame heating Interior liquid spray before just violent boiling type gasify, in turn result in ethanol liquid ingress pipe 6 import it is difficult even damage equipment after Fruit.

Several exhaust smoke holes 27 are along 17 axis of composite fuel combustion chamber circumferentially array distribution;The smoke outlet 27 is in institute It states to be formed in smoke evacuation wall 60 and leads cigarette channel 58;Have on the upside of the smoke evacuation wall 60 and store smoke chamber 59, the storage smoke chamber 59 passes through several It leads cigarette channel 58 and the composite fuel combustion chamber 17 is connected;59 upper end of the storage smoke chamber conducting is connected with pipe 50.

Further include fuel burner nozzle 19, main gas supply pipe 21, combustion air supply pipe 51, combustion air current divider box 52, help Fire air heat-exchange pipe 57, combustion air manifold 56, hot combustion air conduit 20, heat exchange box 53 and smoke exhaust pipe 54;

The conducting of combustion air supply pipe 51 connects the combustion air current divider box 52, the combustion air current divider box 52 Outlet side the inlet ends of several combustion air heat exchanger tubes 57 is connected, each 57 outlet side of combustion air heat exchanger tube is common The combustion air manifold 56 is connected, the outlet side of the combustion air manifold 56 passes through the hot combustion air conduit 20 Conducting connects the combustion air inlet end of the fuel burner nozzle 19;The gas inlet end of the fuel burner nozzle 19 connects the main combustion Gas supply pipe 21;The corresponding composite fuel combustion chamber 17 in the burning furnace body 15 of the flame jet 7 of the fuel burner nozzle 19 In, restriction has been made in the position of the flame jet 7 above;The smoke end of the pipe 50 connects the heat of the heat exchange box 53 The smoke end of cigarette bending tubes end, the heat exchange box 53 connects smoke exhaust pipe 54, and the external world is connected in the smoke exhaust pipe 54;Each combustion air Heat exchanger tube 57 passes through the heat exchanging chamber in the heat exchange box 53.

It is in vertical cylindrical structure outside the burning furnace body 15;The heat exchange box 53 is that vertically arranged strip is closed Body structure, and heat exchange box 53 is set side by side with the burning furnace body 15;The combustion air heat exchanger tube 57 is metal heat-exchange Capillary structure, several combustion air heat exchanger tubes 57 form pencil heat exchange pipe group;And several combustion air heat exchanger tubes 57 are along vertical side To the heat exchanging chamber passed through in the heat exchange box 53;53 inner cavity upper end of heat exchange box is connected in the smoke end of the pipe 50;It is described to change Smoke exhaust pipe 54 is connected in 53 inner cavity lower end of hot tank, and the smoke end of the smoke exhaust pipe 54 connects flue gas purification device.

In order to guarantee the cooperation of taper composite fuel combustion chamber 17 and ethyl alcohol gasification cone 14, flame jet 7 can be made to spray Flame be just in it is horn-like scatter, and enable flame be uniformly attached at cone-type spiral distribution lower section heating tube 1 rise, further Energy utilization rate is improved, is done in the present embodiment as defined below, between the rotary table axis and rotary table bus of composite fuel combustion chamber 17 Angle be α, the angle between the circular cone axis and element of cone of ethyl alcohol gasification cone 14 is β;Wherein β and α meet simultaneously 20 °≤β≤25 ° ,+3 ° of α=β.

In order to guarantee the cooperation of ethyl alcohol gasification chamber 4 and ethanol liquid ingress pipe 6, the height of the annular ejection of flame channel 71 can be made Warm alcohol vapour can quickly form horn-like jet flames, and the upper section heating tube 1 that can be attached at cone-type spiral distribution rises, this It is done in embodiment as defined below, the angle between the circular cone axis and element of cone of ethyl alcohol gasification chamber 4 is γ, and wherein γ meets γ + 10 ° of=β.

The method, principle and its process of this programme arrange as follows: combustion air supply pipe 51 is continuous under air blower effect Combustion air is supplied to combustion air manifold 56, then the flue gas shunting in combustion air manifold 56 to each combustion air changes In heat pipe 57, the hot cigarette in heat exchange box 53 heats heat exchanger tube 57 groups of fasciculation, and the combustion air being then heated is led jointly Enter to combustion air manifold 56, and then the combustion air converged in combustion air manifold 56 passes through hot combustion air conduit 20 It is imported into the air inlet end of fuel burner nozzle 19, the air imported in fuel burner nozzle 19 is excess air, and excessive combustion air makes Into the combustion air in composite fuel combustion chamber 17 sufficiently with also balance partial oxidation after the gas reaction entered together, with this Main gas supply pipe 21 continuously injects combustion gas to fuel burner nozzle 19 simultaneously, combustion air and combustion gas converge in fuel burner nozzle after from It is sprayed at flame jet 7, at this time the electronic lighter starting at flame jet 7, forms jet flames at flame jet 7;This Gasified above Shi Huoyan by ethyl alcohol and bore the blocking at 14 tips, so that flame is scattered in horn-like, and even flame is attached at taper The lower section heating tube 1 of Spiral distribution rises, and heats to the heating tube of leading portion 1, and what it is due to injection is excessive combustion air, combustion gas Rapidly, flame intensity starts to weaken when at the circular cone bottom surface for continuing to rise to ethyl alcohol gasification cone 14 of flame for consumption;At this time Ethyl alcohol supply pipe 12 continuously imports liquid ethanol, second of the liquid ethanol from ethanol liquid ingress pipe 6 to ethanol liquid ingress pipe 6 Alcohol liquid ejection end 9 sprays, and sprays in the ethyl alcohol gasification chamber 4 inside ethyl alcohol gasification cone 14, bores 14 lower ends since ethyl alcohol gasifies It is heated by flame direct-injection, ethyl alcohol gasification cone 14 is continuous high temperature state, and the liquid ethanol being ejected into ethyl alcohol gasification chamber 4 is rapid Gasification, and cause to form high-pressure ethanol steam in ethyl alcohol gasification chamber 4, high-pressure ethanol steam passes through alcohol vapour drainage channel immediately 73 enter in alcohol vapour adapter cavity 75, and alcohol vapour is further heated to ignition point in alcohol vapour adapter cavity 75, Immediately from annular flame channel 71 at the horn-like ejection of divergence expression, due in composite fuel combustion chamber there are also a large amount of balance oxygen, The high temperature alcohol vapour of ejection quickly forms horn-like jet flames, and be attached at cone-type spiral distribution upper section heating tube 1 before Into, and upper section heating tube 1 is heated, finally formed flue gas is discharged by smoke outlet 27;

The cold oil come out from heating equipment is continuously imported into ethyl alcohol and imported by cold conduction oil fuel feed pump 11 in above process In the pipe of temperature protection pipe 44 in oil inlet passage 10, then conduction oil flows at via hole 18 along oil inlet passage 10, oil inlet passage Oil in 10 flows to oil discharge passage 3 by via hole 18, and then conduction oil flows to heating tube 1 from the other end of oil discharge passage 3 Oil inlet end 5, during being somebody's turn to do, 6 outer wall of ethanol liquid ingress pipe between oil discharge passage 3 and oil inlet passage 10 is by conduction oil contact It surrounds, avoids before 6 outer wall of ethanol liquid ingress pipe is directly caused liquid in pipe to spray by flame heating with regard to violent boiling type gas Change, in turn results in ethanol liquid ingress pipe 6 and import the difficult consequence for even damaging equipment, conduction oil is passing through 1 process of heating tube Middle conduction oil is heated, and the conduction oil being then heated is flowed out from the hot oil oil outlet of heating tube 1, and is flowed to and used by circulating pump Hot equipment is thusly-formed circulation.

The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (9)

1. a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: including burning furnace body (15), It include composite fuel combustion chamber (17) that the composite fuel combustion chamber (17) is that taper end is directed downwardly in the burning furnace body (15) Conical round table structure;Composite fuel combustion chamber (17) lower end is concentric to be provided with flame jet (7), flame jet (7) Flame direction vertically upward;Composite fuel combustion chamber (17) upper end is smoke evacuation wall (60), is set on the smoke evacuation wall (60) It is equipped with several smoke outlets (27);
It further include ethyl alcohol gasification cone (14) in the composite fuel combustion chamber (17);Ethyl alcohol gasification cone (14) outer wall is in tip Conical structure directed downwardly;The ethyl alcohol gasification cone (14) and the concentric setting of the composite fuel combustion chamber (17), and the second The conical tip (14.1) and the flame jet (7) spacing of alcohol gasification cone (14) are arranged;The circle of the ethyl alcohol gasification cone (14) Cone bottom surface is located at the middle part of composite fuel combustion chamber (17) axial direction;The ethyl alcohol gasification cone (14) is at least through one Support rod (13) and composite fuel combustion chamber (17) inner wall support connect;
It further include hot oil heating tube (1), the tapered helical disk of the hot oil heating tube (1) in the composite fuel combustion chamber (17) The conical inboard wall (17.1) of the composite fuel combustion chamber (17) is attached at around shape.
2. according to claim 1 a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: The inside of the ethyl alcohol gasification cone (14) further includes conical ethyl alcohol gasification chamber (4);In the ethyl alcohol gasification chamber (4) it is concentric in The ethyl alcohol gasification cone (14) is internal, and ethyl alcohol gasification chamber (4) lower end is tip;The conical bottom of the ethyl alcohol gasification chamber (4) It is concentric at face to be provided with disk of igniting (72), disk of igniting (72) outer profile and ethyl alcohol gasification chamber (4) upper end profile it Between form annular flame channel (71), the waist inner wall of the ethyl alcohol gasification chamber (4) is provided with the horizontal water conservancy diversion land (74) of a circle, Alcohol vapour adapter cavity (75) are formed between the water conservancy diversion land (74) and the disk of igniting (72);
It further include ethanol liquid ingress pipe (6);The ethanol liquid ingress pipe (6) and composite fuel combustion chamber (17) axis Concentric setting, the ethanol liquid ingress pipe (6) extend downwardly into the composite fuel combustion from the flame jet (7) contralateral side It burns in room (17), is additionally provided with check valve (80) in the ethanol liquid ingress pipe (6), check valve (80) lower end is liquid End, it is ethanol liquid ejection end (9) that the ethanol liquid ingress pipe (6), which protrudes into the end in composite fuel combustion chamber (17), Ethanol liquid ejection end (9) protrudes into the ethyl alcohol gasification chamber (4), and the ethanol liquid ejection end (9) is located at the water conservancy diversion Below land (74);Ethyl alcohol supply pipe (12) outside the other end connection of the ethanol liquid ingress pipe (6);The ethyl alcohol supplies Alcohol vapour drainage channel (73) are formed between outer wall to pipe (12) and the water conservancy diversion land (74) inner wall.
3. according to claim 2 a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: It further include importing temperature protection pipe (44) with the concentric ethyl alcohol of the ethanol liquid ingress pipe (6), the ethyl alcohol imports temperature The lower end of protection pipe (44) is protruded into the composite fuel combustion chamber (17);It is internal diameter that the ethyl alcohol, which imports temperature protection pipe (44), Greater than the heating resisting metal pipe structure of the ethanol liquid ingress pipe (6), and the ethyl alcohol imports (44) two end seal of temperature protection pipe Mouth setting;
The ethanol liquid ingress pipe (6) is concentric to pass through ethyl alcohol importing temperature protection pipe (44), and the ethanol liquid is led Enter pipe (6) outer wall and the ethyl alcohol imports and is provided with two symmetrical points between temperature protection pipe (44) inner wall along its length Partition (16), two shims (16) will be separated into oil inlet passage (10) in the pipe of ethyl alcohol importing temperature protection pipe (44) With oil discharge passage (3);The lower end hollow out of two shims (16) is provided with via hole (18);The via hole (18) will be described Oil inlet passage (10) and oil discharge passage (3) mutual conduction;The oil inlet passage (10) is led far from the one end of the via hole (18) Lead to and connects external cold conduction oil fuel feed pump (11);The oil discharge passage (3) is connected far from the one end of the via hole (18) to be connected Connect the oil inlet end (5) of the hot oil heating tube (1);Thermal conductivity hot oil is connected in the lower end oil outlet (5.1) of the hot oil heating tube (1) Efferent duct (24).
4. according to claim 1 a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: Several exhaust smoke holes (27) are along composite fuel combustion chamber (17) axis circumferentially array distribution;The smoke outlet (27) is described It is formed in smoke evacuation wall (60) and leads cigarette channel (58);Have on the upside of the smoke evacuation wall (60) and stores smoke chamber (59), the storage smoke chamber (59) The composite fuel combustion chamber (17) is connected by several lead cigarette channel (58);The conducting of the storage smoke chamber (59) upper end is connected with out Smoke pipe (50).
5. according to claim 4 a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: Further include fuel burner nozzle (19), main gas supply pipe (21), combustion air supply pipe (51), combustion air current divider box (52), help Fire air heat-exchange pipe (57), combustion air manifold (56), hot combustion air conduit (20), heat exchange box (53) and smoke exhaust pipe (54);
Combustion air supply pipe (51) conducting connects the combustion air current divider box (52), the combustion air current divider box (52) inlet end of several combustion air heat exchanger tubes (57) is connected in outlet side, and each combustion air heat exchanger tube (57) goes out The combustion air manifold (56) is connected in gas end jointly, and the outlet side of the combustion air manifold (56) is helped by the heat Fire the combustion air inlet end that air conduit (20) conducting connects the fuel burner nozzle (19);The combustion gas of the fuel burner nozzle (19) Inlet end connects the main gas supply pipe (21);The flame jet (7) of the fuel burner nozzle (19) is corresponding in the combustion furnace In the composite fuel combustion chamber (17) of ontology (15);
The smoke end of the pipe (50) connects the hot cigarette bending tubes end of the heat exchange box (53), the smoke of the heat exchange box (53) End connection smoke exhaust pipe (54), smoke exhaust pipe (54) conducting are extraneous;Each combustion air heat exchanger tube (57) passes through the heat exchange Heat exchanging chamber in case (53).
6. according to claim 5 a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: It is in vertical cylindrical structure outside the burning furnace body (15);The heat exchange box (53) is vertically arranged strip closed case Structure, and heat exchange box (53) is set side by side with the burning furnace body (15);
The combustion air heat exchanger tube (57) is metal heat-exchange capillary structure, and several combustion air heat exchanger tubes (57) form pencil and change Heat pipe group;And several combustion air heat exchanger tubes (57) pass through the heat exchanging chamber in the heat exchange box (53) along the vertical direction;It is described go out Heat exchange box (53) inner cavity upper end is connected in the smoke end of smoke pipe (50);Smoke exhaust pipe (54) are connected in heat exchange box (53) the inner cavity lower end, The smoke end of the smoke exhaust pipe (54) connects flue gas purification device.
7. according to claim 1 a kind of based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: Angle between the rotary table axis and rotary table bus of the composite fuel combustion chamber (17) is α, the ethyl alcohol gasification cone (14) Angle between circular cone axis and element of cone is β;Wherein 20 °≤β≤25 ° β and α while satisfaction ,+3 ° of α=β.
8. a kind of based on liquid ethanol-natural gas composite fuel combustion furnace according to claim 2 or 7, feature exists In: the angle between the circular cone axis and element of cone of the ethyl alcohol gasification chamber (4) is γ, and wherein γ meets+10 ° of γ=β.
9. a kind of method based on liquid ethanol-natural gas composite fuel combustion furnace, it is characterised in that: under air blower effect Combustion air supply pipe (51) continuously supplies combustion air to combustion air manifold (56), then combustion air manifold (56) In flue gas shunting into each combustion air heat exchanger tube (57), heat exchanger tube (57) group of hot cigarette in heat exchange box (53) to fasciculation Heating, the combustion air being then heated is imported into combustion air manifold (56) jointly, and then combustion air manifold (56) In the combustion air that converges the air inlet end of fuel burner nozzle (19) is imported by hot combustion air conduit (20), import combustion gas Air in burner (19) is excess air, and excessive combustion air fills the combustion air entered in composite fuel combustion chamber (17) Point with after the gas reaction entered together and balance partial oxidation, main gas supply pipe (21) is continuously to fuel burner nozzle at the same time (19) combustion gas is injected, combustion air and combustion gas spray at flame jet (7) after converging in fuel burner nozzle, at this time flame jet (7) electronic lighter at starts, and jet flames is formed at flame jet (7);Gasified above flame by ethyl alcohol at this time and bores (14) blocking at tip makes flame scatter in horn-like, and even flame is attached at the lower section heating tube (1) of cone-type spiral distribution Rise, and the heating tube of leading portion (1) is heated, what it is due to injection is excessive combustion air, and gas consumption is rapid, with flame Flame intensity starts to weaken when continuing to rise at the circular cone bottom surface of ethyl alcohol gasification cone (14);Ethyl alcohol supply pipe (12) is continuous at this time Liquid ethanol, ethanol liquid ejection end of the liquid ethanol from ethanol liquid ingress pipe (6) are imported to ethanol liquid ingress pipe (6) (9) spray, and spray in the internal ethyl alcohol gasification chamber (4) of ethyl alcohol gasification cone (14), due to ethyl alcohol gasify cone (14) lower end by The heating of flame direct-injection, ethyl alcohol gasification cone (14) are continuous high temperature state, and the liquid ethanol being ejected into ethyl alcohol gasification chamber (4) is rapid Gasification, and cause to form high-pressure ethanol steam in ethyl alcohol gasification chamber (4), high-pressure ethanol steam is drained logical by alcohol vapour immediately Road (73) enters in alcohol vapour adapter cavity (75), and alcohol vapour is further heated in alcohol vapour adapter cavity (75) Ignition point, immediately from annular flame channel (71) at the horn-like ejection of divergence expression, since there are also a large amount of in composite fuel combustion chamber The high temperature alcohol vapour of balance oxygen, ejection quickly forms horn-like jet flames, and is attached at the upper section of cone-type spiral distribution Heating tube (1) is advanced, and is heated to upper section heating tube (1), and finally formed flue gas is discharged by smoke outlet (27);
The cold oil come out from heating equipment is continuously imported into ethyl alcohol and imports temperature by cold conduction oil fuel feed pump (11) in above process It spends in the pipe of protection pipe (44) in oil inlet passage (10), then conduction oil flows at via hole (18) along oil inlet passage (10), into Oil in oily channel (10) flows to oil discharge passage (3) by via hole (18), then the other end of the conduction oil from oil discharge passage (3) The oil inlet end (5) of heating tube (1) is flowed to, during being somebody's turn to do, the ethanol liquid between oil discharge passage (3) and oil inlet passage (10) is imported Pipe (6) outer wall is surrounded by conduction oil contact, is avoided ethanol liquid ingress pipe (6) outer wall and is directly caused in pipe by flame heating Liquid gasifies before spraying with regard to violent boiling type, after in turn resulting in the difficult even damage equipment of ethanol liquid ingress pipe (6) importing Fruit, conduction oil conduction oil during by heating tube (1) are heated, heat of the conduction oil being then heated from heating tube (1) Oily oil outlet outflow, and heating equipment is flowed to by circulating pump, it is thusly-formed circulation.
CN201711237601.4A 2017-11-30 2017-11-30 It is a kind of based on liquid ethanol-natural gas composite fuel combustion furnace and its method CN108050509B (en)

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CN108479540A (en) * 2018-05-29 2018-09-04 南通劲凌智能科技有限公司 A kind of food Hybrid Heating device and method thereof
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