CN111765631A - Novel gas heating boiler and ignition method thereof - Google Patents
Novel gas heating boiler and ignition method thereof Download PDFInfo
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- CN111765631A CN111765631A CN202010592198.2A CN202010592198A CN111765631A CN 111765631 A CN111765631 A CN 111765631A CN 202010592198 A CN202010592198 A CN 202010592198A CN 111765631 A CN111765631 A CN 111765631A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 12
- 238000002485 combustion reaction Methods 0.000 claims abstract description 112
- 239000003921 oil Substances 0.000 claims description 83
- 239000003595 mist Substances 0.000 claims description 17
- 239000000295 fuel oil Substances 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 89
- 239000000446 fuel Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 241000976924 Inca Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/008—Structurally associated with fluid-fuel burners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1881—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2085—Arrangement or mounting of control or safety devices for air heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The invention provides a novel gas heating boiler, which comprises a combustion chamber, a hearth, a gas cavity, a controller, a flame inductor, an oil pump, an oil sprayer, an ignition electrode and an ignition coil, wherein the combustion chamber is provided with a combustion chamber; a hearth is circumferentially arranged on the outer side wall of the front end of the combustion chamber; a gas cavity is circumferentially arranged on the outer side wall of the hearth; the outer side wall of the rear end of the combustion chamber is communicated with a combustion chamber air inlet fan; the rear end of the inner cavity of the combustion chamber is provided with the oil injector and the ignition electrode; a flame inductor is arranged on the side wall of the rear end of the inner cavity of the combustion chamber; an ignition coil is arranged outside the rear end of the combustion chamber; the controller is respectively connected with the flame inductor, the ignition coil and the oil pump. The novel gas heating boiler provided by the invention has the advantages of rapid flame initiation, complete combustion and high heating efficiency.
Description
Technical Field
The invention belongs to the technical field of heating boilers, and particularly relates to a novel gas heating boiler and an ignition method thereof.
Background
A gas heating boiler is an apparatus that heats gas by generating heat energy by mixing air and fuel in a proper ratio to burn. The gas heating boiler has many types, but the existing boiler products are burnt in a mode that fuel is directly soaked on a fine metal grid, surface fuel oil is ignited through a high-heat resistance wire in initial ignition, and after local combustion, flame spreads around the metal grid along with entering fresh air to form hearth flame. This combustion method is slow in ignition, uneven in mixing, and poor in fuel economy because a large amount of black smoke is formed in the initial stage of combustion. In addition, the arrangement structure of the combustion chamber and the gas cavity is simple, so that the heat exchange efficiency is low, and the gas temperature rise is slow.
Disclosure of Invention
In view of the above, the present invention is directed to a novel gas heating boiler and an ignition method thereof. The novel gas heating boiler provided by the invention has the advantages of accurate control of fuel-air ratio, rapid flame initiation and complete combustion.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a novel gas heating boiler, which comprises a combustion chamber, a hearth, a gas cavity, a controller, a flame inductor, an oil pump, an oil sprayer, an ignition electrode and an ignition coil, wherein the combustion chamber is provided with a combustion chamber; the outer side wall of the front end of the combustion chamber is circumferentially bolted or welded with a hearth; the outer side wall of the hearth is circumferentially bolted or welded with a gas cavity; the gas cavity is provided with a gas inlet and a gas outlet; the gas inlet is connected with an air fan; the gas outlet is connected with an external circulating heat absorption device through a pipeline; an exhaust outlet is formed in the middle of the combustion chamber; the exhaust outlet is communicated with the hearth; the outer side wall of the rear end of the combustion chamber is communicated with a combustion chamber air inlet fan; the rear end of the inner cavity of the combustion chamber is provided with the oil injector and the ignition electrode; the side wall of the rear end of the inner cavity of the combustion chamber is provided with the flame inductor; the ignition coil is arranged outside the rear end of the combustion chamber; one end of the ignition coil is connected with the ignition electrode through a lead; the other end of the ignition coil is connected with the controller through a lead; the controller is connected with an external power supply through a power line; the flame inductor is connected with the controller through a lead; the oil pump is connected with the controller through a wire harness; the oil injector is communicated with the oil pump through a pipeline; the oil pump is positioned outside the combustion chamber; the oil pump is provided with an oil inlet pipe; the oil inlet pipe is connected with an external oil tank through a pipeline.
Preferably, a combustion chamber fin is arranged between the hearth inner cavity and the outer side wall of the combustion chamber; the combustion chamber fin is circumferentially cast or welded on the outer side wall of the combustion chamber.
Preferably, the inner side wall of the gas cavity is circumferentially cast or welded with a gas cavity fin.
Preferably, the inner side wall of the gas cavity is circumferentially cast or welded with a gas cavity fin.
Preferably, a tube bundle front baffle and a tube bundle rear baffle are welded at the front end and the rear end of the gas cavity respectively; a tube bundle is arranged in the gas cavity in the circumferential direction; the tube bundle sequentially passes through the tube bundle front baffle and the tube bundle rear baffle; the tube bundle is a hollow tube; the tube bundle is welded to the tube bundle front baffle and the tube bundle rear baffle.
The invention also provides an ignition method of the novel gas heating boiler, which comprises the following steps:
step one, a controller controls an ignition coil to generate high voltage, so that an ignition electrode punctures air to generate continuous arcing;
starting an oil pump to suck fuel oil from an oil inlet pipe and generate high pressure, spraying oil mist through a pore at the front end of an oil sprayer, simultaneously starting an air inlet fan of a combustion chamber to feed air into the combustion chamber to form mixed gas with the oil mist, and forming initial flame under the ignition of a fire arc;
thirdly, detecting whether flame exists in the combustion chamber by a flame sensor; if the flame inductor detects that flame exists in the combustion chamber, the ignition is finished; if the flame inductor detects that flame does not exist in the combustion chamber, the oil mist amount is adjusted by readjusting the pressure of the oil pump, and the air amount is adjusted by adjusting the rotating speed of an air inlet fan of the combustion chamber until flame is formed again.
The novel gas heating boiler provided by the invention adopts a mode of igniting high-pressure jet fuel oil by sparks and introducing air for supporting combustion, so that the flame is quickly ignited and is completely combusted. The heat transfer from the furnace chamber with the fins to the gas cavity with the fins or the tube bundle is fast, and the efficiency is high.
When the boiler is started, a controller firstly controls an ignition electrode to ionize air to continuously generate an ignition arc under the action of high voltage of an ignition coil, then an air inlet fan provides air to a combustion chamber, meanwhile, an oil pump provides high-pressure fuel oil to an oil sprayer to form spray oil mist, oil-gas mixed gas is formed with the air, initial flame is formed under the ignition of the arc, the flame diffuses into a hearth along with the air, the gas in the gas cavity is heated by radiating fins in the hearth, and waste gas is discharged from a hearth exhaust outlet. The heated gas in the gas cavity forms a circulation under the action of the air fan. The ignition method has the advantages that the flame is ignited quickly and completely.
According to the invention, the hollow tube bundle is welded in the gas cavity, and the flame and the flue gas in the hearth can heat the gas in the gas cavity through the hollow tube bundle, so that the gas heating speed is increased, and the heating time is shortened.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a tube bundle heating configuration according to the present invention;
FIG. 3 is a graph comparing the ignition time of a conventional boiler and a new burner;
FIG. 4 is a graph comparing temperature rise curves of a conventional boiler and a novel boiler;
in the figure, 1, an air fan, 2, an oil inlet pipe, 3, an oil pump, 4, a wire harness, 5, a controller, 6, a power wire, 7, a gas outlet, 8, a hearth, 9, a combustion chamber fin, 10, a gas cavity, 11, a gas cavity fin, 12, an exhaust outlet, 13, a combustion chamber, 14, an ignition electrode, 15, an oil injector, 16, a combustion chamber air inlet fan, 17, a flame sensor, 18, an ignition coil and 19 are wires;
in fig. 2, 1 is an air fan, 7 is a gas outlet, 8 is a hearth, 10 is a gas cavity, 12 is an exhaust outlet, 20 is a tube bundle front baffle, 21 is a tube bundle, and 22 is a tube bundle rear baffle.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a novel gas heating boiler, which comprises a combustion chamber 13, a hearth 8, a gas cavity 10, a controller 5, a flame inductor 17, an oil pump 3, an oil injector 15, an ignition electrode 14 and an ignition coil 18, wherein the combustion chamber is internally provided with a combustion chamber; the outer side wall of the front end of the combustion chamber 13 is circumferentially bolted or welded with a hearth 8; the outer side wall of the hearth 8 is circumferentially bolted or welded with a gas cavity 10; the gas cavity 10 is provided with a gas inlet and a gas outlet 7; the gas inlet is connected with an air fan 1; the gas outlet 7 is connected with an external circulating heat absorption device through a pipeline; the middle part of the combustion chamber 13 is provided with an exhaust outlet 12; the exhaust outlet 12 is communicated with the hearth 8; the outer side wall of the rear end of the combustion chamber 13 is communicated with a combustion chamber air inlet fan 16; the rear end of the inner cavity of the combustion chamber 13 is provided with the fuel injector 15 and the ignition electrode 14; the side wall at the rear end of the inner cavity of the combustion chamber 13 is provided with the flame inductor 17; the ignition coil 18 is arranged outside the rear end of the combustion chamber 13; one end of the ignition coil 18 is connected with the ignition electrode 14 through a lead 19; the other end of the ignition coil 18 is connected with the controller 5 through a lead 19; the controller 5 is connected with an external power supply through a power line 6; the flame inductor 17 is connected with the controller 5 through a lead 19; the oil pump 3 is connected with the controller 5 through a wire harness 4; the oil injector 15 is communicated with the oil pump 3 through a pipeline; the oil pump 3 is located outside the combustion chamber 13; the oil pump 3 is provided with an oil inlet pipe 2; the oil inlet pipe 2 is connected with an external oil tank through a pipeline.
In the invention, a combustion chamber fin 9 is arranged between the inner cavity of the hearth 8 and the outer side wall of the combustion chamber 13; the combustion chamber fins 9 are circumferentially cast or welded on the outer side wall of the combustion chamber 13.
In the present invention, the gas chamber fins 11 are circumferentially cast or welded on the inner sidewall of the gas chamber 10.
In another embodiment of the present invention, a tube bundle front baffle 20 and a tube bundle rear baffle 22 are welded to the front and rear ends of the gas chamber 10, respectively; a tube bundle 21 is arranged in the gas cavity 10 along the circumferential direction; the tube bundle 21 passes through the tube bundle front baffle 20 and the tube bundle rear baffle 22 in this order; the tube bundle 21 is a hollow tube; the tube bundle 21 is welded to the tube bundle front baffle 20 and the tube bundle rear baffle 22. The welding mode is brazing.
The working principle of the novel gas heating boiler provided by the invention is as follows: when the gas heating boiler works, under the control of the controller 5, the system firstly generates high voltage by the ignition coil 18, so that the ignition electrode 14 breaks through air to generate continuous fire arc, then the oil pump 3 sucks fuel oil from the oil inlet pipe 2 to generate high voltage, oil mist is sprayed out through the pores at the front end of the oil sprayer 15, meanwhile, the combustion chamber air inlet fan 16 is started to feed air into the combustion chamber 13, oil-gas mixture is formed by the air and the oil mist, and initial flame is formed under the ignition of the continuous fire arc. Meanwhile, the flame sensor 17 detects whether flame exists in the combustion chamber 13, if flame signals exist in the combustion chamber, the system adjusts the oil mist amount by readjusting the pressure of the oil pump 3 under the control of the controller 5, and adjusts the air amount by adjusting the rotating speed of the combustion chamber air inlet fan 16, so that the ignition electrode 14 is ignited again until the flame is stabilized, and the ignition electrode 14 is extinguished. The flame of the ignited mixture (mixture of oil mist and air) is rapidly diffused to the whole combustion chamber 13 from the front end of the oil injector 15, and under the action of the combustion chamber air inlet fan 16, the flame enters the hearth 8 from the combustion chamber 13, the gas in the gas cavity 10 is heated through the outer wall of the hearth 8 and the gas cavity fins 11 or the tube bundle, meanwhile, the flame in the combustion chamber 13 heats the exhaust gas flowing through the hearth through the outer wall and the combustion chamber fins 9, and the exhaust gas is discharged through the exhaust outlet 12. The heated gas in the gas cavity 10 of the outer layer of the boiler is sent to an external circulation heat absorption device through a gas outlet 7 under the action of an air fan 1, and the backflow gas is sent to the gas cavity 10 again through an air inlet of the air fan 1, so that the heating cycle is completed.
In another embodiment of the present invention, the flame generated in the combustion chamber 13 heats the gas chamber 10 through the hollow tube bundle 21, and since the tube bundles 21 are disposed in the gas chamber 10, the flame and the flue gas in the furnace chamber 8 can enter the hollow tube bundle 21 to heat the gas in the gas chamber 10.
The invention also provides an ignition method of the novel gas heating boiler, which comprises the following steps:
step one, the controller 5 controls the ignition coil 18 to generate high voltage, so that the ignition electrode 14 breaks through air to generate continuous arcing;
starting an oil pump 3 to suck fuel oil from an oil inlet pipe 2 and generate high pressure, spraying oil mist through a pore at the front end of an oil sprayer 15, starting a combustion chamber air inlet fan 16 to feed air into a combustion chamber 13 at the same time, forming mixed gas with the oil mist, and forming initial flame under the ignition of a fire arc;
step three, detecting whether flame exists in the combustion chamber 13 by the flame inductor 17; if the flame sensor 17 detects that flame exists in the combustion chamber 13, the ignition is finished; if the flame sensor 17 detects that there is no flame in the combustion chamber 13, the amount of oil mist is adjusted by readjusting the pressure of the oil pump 3, and the amount of air is adjusted by adjusting the rotation speed of the combustion chamber intake fan 16 until flame is formed again.
The novel gas heating boiler and the ignition method thereof according to the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
Example 1
A measuring cylinder (common glass measuring cylinder) filled with diesel oil is placed on an electronic scale with the precision of 0.05g in advance, an oil inlet pipe 2 on an oil pump 3 on a boiler is inserted below the oil surface of the measuring cylinder and is suspended and fixed, the boiler is started, the oil pump 3 works, the oil pump is closed after running for 3 minutes to empty air in a fuel pipeline, and the number of the electronic scale is recorded to be 1.60kg at the moment. Heating a crankcase of an engine at the temperature of minus 40 ℃, starting a boiler in a test, timing, and after 15 seconds, stabilizing the reading of a temperature sensor of a hearth of the boiler, sending air at the temperature of minus 40 ℃ into an air inlet fan of a combustion chamber, after the boiler runs for 6 minutes, finishing timing, increasing the temperature of an outlet of the boiler to 150 ℃, wherein the reading of an electronic scale is 1.502kg, and the used fuel is 0.098 kg.
Novel gas heating boiler working process: after the boiler is started, the controller 5 controls the high-voltage ignition coil 18 to enable the ignition electrode 14 to continuously release the flame arc, fuel oil is sucked into the oil inlet pipe through the oil pump 3 to form high-voltage fuel oil, the high-voltage fuel oil is fed into the oil injector 15 through the connecting pipe and is sprayed out in an atomized mode through the fine hole in the front end of the oil injector 15, meanwhile, the fresh air is fed into the combustion chamber 13 through the combustion chamber air inlet fan 16, the air and the atomized fuel oil at the front end of the oil injector 15 form combustible mixed gas, initial flame is formed under the ignition of the flame arc, after 15 seconds, the mixed gas flame is diffused to fill the combustion chamber 13 to form a stable combustion state, the gas in the gas cavity 10 is heated, meanwhile, the high-voltage ignition coil 18 stops supplying power, the ignition electrode 14 does not release the flame arc, and meanwhile, the air fan 1.
Comparative example 1
The test procedure and the environmental state are the same, air in an oil pipe of a traditional boiler is emptied in advance, the electronic scale shows 1.650kg, a crankcase test of an engine heated to 40 ℃ below zero is also carried out, the boiler is started in the test, the time is counted, after 80 seconds, the temperature of a hearth temperature sensor of the boiler is stable, when the boiler runs for 6 minutes, the time is over, the temperature of an air outlet of the boiler rises to 100 ℃, the electronic scale shows 1.555kg, and the used fuel oil is 0.095 kg.
The working process of the traditional boiler comprises the following steps: the traditional boiler uses the heating wire mode of igniteing, has arranged heat-resisting thin wire net in the combustion chamber, and on the wire net was carried through the low pressure oil pump to the fuel, mixed oil-gas mixture on the net with the air that the fan sent into, the heating wire that ignites was located the wire net edge. When the boiler is started, the electric heating wire is gradually heated up to reach a certain temperature, fuel oil mixed gas passing through the edge of the electric heating wire is ignited to form initial flame, the flame is diffused forwards, the mixed gas on the heat-resistant metal net is ignited, then the flame is filled in the combustion chamber to form stable combustion, the gas in the outer cavity is heated, and the process from the starting of the boiler to the forming of the stable combustion requires at least 80 seconds. After the combustion is stable, the electric heating wire stops supplying power and is not ignited any more. When the boiler is started, the outer cavity air fan operates to send cold air into the outer cavity of the boiler to form external circulation.
FIG. 3 is a graph showing the comparison of the ignition time of the conventional boiler and the new boiler
In the figure 3, a high-temperature thermocouple temperature sensor is arranged in a boiler furnace, a high-precision ETAS650 testing device is used for collecting temperature thermocouple electric signals, the temperature thermocouple electric signals are input into a computer, and an INCA monitoring software is used for displaying temperature values, wherein the sampling frequency is 100 ms.
In the figure 4, a thermocouple temperature sensor is arranged at the air outlet of the boiler, temperature thermocouple electric signals are collected by high-precision ETAS650 testing equipment and input into a computer, and temperature values are displayed by using INCA monitoring software, wherein the sampling frequency is 100 ms.
Effect analysis was performed with respect to fig. 3 and 4:
1. the reason for the effect of the ignition advantage is analyzed with respect to fig. 3:
the boiler adopts a high-pressure oil mist injection and spark ignition combustion mode, firstly, the ignition electrode forms continuous fire arc, the oil pump can instantly generate high pressure, so that fuel oil is atomized and forms uniform mixed gas with air, and the fuel oil quickly fills the combustion chamber after ignition combustion, therefore, the boiler is quick in ignition, can form stable combustion in 15 seconds, and has high fuel economy.
Traditional boiler adopts the heating wire ignition mode that heaies up gradually, and initial flame formation time is long, after diffusing the metal mesh, because the fuel can atomize through the heating on the metal mesh, just can burn after then forming the mist, so combustion process is slow, and the mixture in addition is uneven, and the burning quality is poor, and the initial stage burning is incomplete, and the visual dense cigarette of exhaust.
2. The heating gas effect dominance analysis was performed with respect to fig. 4:
in the boiler of the embodiment, the combustion chamber and the liquid cavity are both provided with the uniform heat conduction fins, the heat transfer efficiency is high, in addition, the mixed gas in a jet combustion mode is completely combusted, the temperature of flame in the hearth is high, and the thermal potential energy is large compared with that of the outer wall of the hearth, so the temperature of the gas is increased in the same time. Although the outer wall of the combustion chamber and the gas cavity of the traditional boiler are respectively provided with the radiating fins, the combustion of fuel oil in the combustion chamber belongs to the ignition of evaporated oil mist on the outer layer of the metal mesh, the mixed gas is not uniform, the combustion temperature is low, and the thermal potential energy with the outer wall of the hearth is small, so that the heat transfer efficiency is low, and the temperature rise is slow.
Claims (6)
1. A novel gas heating boiler comprises a combustion chamber, a hearth, a gas cavity, a controller, a flame inductor, an oil pump, an oil sprayer, an ignition electrode and an ignition coil; the outer side wall of the front end of the combustion chamber is circumferentially bolted or welded with a hearth; the outer side wall of the hearth is circumferentially bolted or welded with a gas cavity; the gas cavity is provided with a gas inlet and a gas outlet; the gas inlet is connected with an air fan; the gas outlet is connected with an external circulating heat absorption device through a pipeline; an exhaust outlet is formed in the middle of the combustion chamber; the exhaust outlet is communicated with the hearth; the combustion chamber air inlet fan is communicated with the outer side wall of the rear end of the combustion chamber; the rear end of the inner cavity of the combustion chamber is provided with the oil injector and the ignition electrode; the side wall of the rear end of the inner cavity of the combustion chamber is provided with the flame inductor; the ignition coil is arranged outside the rear end of the combustion chamber; one end of the ignition coil is connected with the ignition electrode through a lead; the other end of the ignition coil is connected with the controller through a lead; the controller is connected with an external power supply through a power line; the flame inductor is connected with the controller through a lead; the oil pump is connected with the controller through a wire harness; the oil injector is communicated with the oil pump through a pipeline; the oil pump is positioned outside the combustion chamber; the oil pump is provided with an oil inlet pipe; the oil inlet pipe is connected with an external oil tank through a pipeline.
2. The novel gas heating boiler according to claim 1, characterized in that a combustion chamber fin is arranged between the furnace chamber inner cavity and the combustion chamber outer side wall; the combustion chamber fin is circumferentially cast or welded on the outer side wall of the combustion chamber.
3. A novel gas heating boiler according to claim 1, characterized in that gas chamber fins are circumferentially cast or welded on the inner side wall of the gas chamber.
4. A novel gas heating boiler according to claim 2, characterized in that gas chamber fins are cast or welded circumferentially on the inner side wall of the gas chamber.
5. The novel gas heating boiler according to claim 1, characterized in that a tube bundle front baffle and a tube bundle rear baffle are welded to the front end and the rear end of the gas chamber respectively; a tube bundle is arranged in the gas cavity in the circumferential direction; the tube bundle sequentially passes through the tube bundle front baffle and the tube bundle rear baffle; the tube bundle is a hollow tube; the tube bundle is welded to the tube bundle front baffle and the tube bundle rear baffle.
6. A novel ignition method of a gas-heated boiler, as claimed in any one of claims 1 to 5, characterized in that it comprises the following steps:
step one, a controller controls an ignition coil to generate high voltage, so that an ignition electrode punctures air to generate continuous arcing;
starting an oil pump to suck fuel oil from an oil inlet pipe and generate high pressure, spraying oil mist through a pore at the front end of an oil sprayer, simultaneously starting an air inlet fan of a combustion chamber to feed air into the combustion chamber to form mixed gas with the oil mist, and forming initial flame under the ignition of a fire arc;
thirdly, detecting whether flame exists in the combustion chamber by a flame sensor; if the flame inductor detects that flame exists in the combustion chamber, the ignition is finished; if the flame inductor detects that flame does not exist in the combustion chamber, the oil mist amount is adjusted by readjusting the pressure of the oil pump, and the air amount is adjusted by adjusting the rotating speed of an air inlet fan of the combustion chamber until flame is formed again.
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| CN202010592198.2A CN111765631A (en) | 2020-06-24 | 2020-06-24 | Novel gas heating boiler and ignition method thereof |
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| CN202010592198.2A CN111765631A (en) | 2020-06-24 | 2020-06-24 | Novel gas heating boiler and ignition method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161293A (en) * | 2020-08-19 | 2021-01-01 | 华电电力科学研究院有限公司 | Optimization control method for improving boiler fuel oil automatic ignition success rate |
| CN113847621A (en) * | 2021-10-22 | 2021-12-28 | 西安热工研究院有限公司 | Cold-state starting system and method for boiler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201396742Y (en) * | 2009-01-21 | 2010-02-03 | 江苏双良锅炉有限公司 | Novel high-efficiency horizontal fuel/gas steam boiler with shell-and-tube economizer |
| CN201472106U (en) * | 2009-08-07 | 2010-05-19 | 河北南风汽车设备集团有限公司 | Spray atomized liquid fuel oil heater |
| CN213208226U (en) * | 2020-06-24 | 2021-05-14 | 北京高鑫伟业科技有限公司 | Novel gas heating boiler |
-
2020
- 2020-06-24 CN CN202010592198.2A patent/CN111765631A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201396742Y (en) * | 2009-01-21 | 2010-02-03 | 江苏双良锅炉有限公司 | Novel high-efficiency horizontal fuel/gas steam boiler with shell-and-tube economizer |
| CN201472106U (en) * | 2009-08-07 | 2010-05-19 | 河北南风汽车设备集团有限公司 | Spray atomized liquid fuel oil heater |
| CN213208226U (en) * | 2020-06-24 | 2021-05-14 | 北京高鑫伟业科技有限公司 | Novel gas heating boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161293A (en) * | 2020-08-19 | 2021-01-01 | 华电电力科学研究院有限公司 | Optimization control method for improving boiler fuel oil automatic ignition success rate |
| CN113847621A (en) * | 2021-10-22 | 2021-12-28 | 西安热工研究院有限公司 | Cold-state starting system and method for boiler |
| CN113847621B (en) * | 2021-10-22 | 2024-02-27 | 西安热工研究院有限公司 | Cold start system and method for boiler |
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