CN111765626A - Novel liquid heating boiler and ignition method thereof - Google Patents
Novel liquid heating boiler and ignition method thereof Download PDFInfo
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- CN111765626A CN111765626A CN202010590750.4A CN202010590750A CN111765626A CN 111765626 A CN111765626 A CN 111765626A CN 202010590750 A CN202010590750 A CN 202010590750A CN 111765626 A CN111765626 A CN 111765626A
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- 239000007788 liquid Substances 0.000 title claims abstract description 102
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 106
- 239000003921 oil Substances 0.000 claims description 82
- 239000003595 mist Substances 0.000 claims description 16
- 239000000295 fuel oil Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 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 13
- 239000000446 fuel Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 3
- 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
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910001111 Fine metal Inorganic materials 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
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection 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
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- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form 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
-
- 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
- F24H9/0005—Details for water heaters
-
- 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
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—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
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water 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 liquid heating boiler, which comprises a combustion chamber, a hearth, a liquid 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 liquid 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 liquid 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 liquid heating boiler and an ignition method thereof.
Background
A liquid heating boiler is a device that heats a liquid by mixing air and fuel in a proper ratio to burn the mixture and by generating heat energy. Liquid heating boilers are in 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 liquid cavity is simple, so that the heat exchange efficiency is low, and the temperature rise of the liquid is slow.
Disclosure of Invention
In view of the above, the present invention is directed to a novel liquid heating boiler and an ignition method thereof. The novel liquid 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 liquid heating boiler, which comprises a combustion chamber, a hearth, a liquid 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 liquid cavity; the liquid cavity is provided with a liquid inlet and a liquid outlet; the liquid inlet is connected with a water pump; the liquid 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 liquid cavity is circumferentially cast or welded with a liquid cavity fin.
Preferably, the inner side wall of the liquid cavity is circumferentially cast or welded with a liquid 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 liquid cavity respectively; a tube bundle is arranged in the liquid 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 liquid 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 liquid heating boiler provided by the invention adopts a mode of igniting high-pressure jet fuel oil by sparks and introducing air for supporting combustion, and the flame is quickly ignited and is completely combusted. The heat transfer from the furnace chamber with the fins to the liquid cavity with the fins or the tube bundle is fast, and the efficiency is high.
When the novel liquid heating 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 electric arc, the flame enters a hearth along with the diffusion of the air, liquid in a liquid cavity is heated through a heat dissipation fin in the hearth, and waste gas is discharged from an exhaust outlet of the hearth. The liquid heated in the liquid cavity forms a circulation under the action of the water pump. 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 liquid cavity, and the flame and the flue gas in the hearth can heat the liquid in the liquid cavity through the hollow tube bundle, so that the temperature rise speed of the liquid is accelerated, and the temperature rise 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, a water pump, 2, an oil inlet pipe, 3, an oil pump, 4, a wire harness, 5, a controller, 6, a power wire, 7, a liquid outlet, 8, a hearth, 9, a combustion chamber fin, 10, a liquid cavity, 11, a liquid 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, 19 and a wire are arranged;
in fig. 2, 1 is a water pump, 7 is a liquid outlet, 8 is a hearth, 10 is a liquid chamber, 12 is an exhaust outlet, 20 is a tube bundle front baffle, 21 is a tube bundle, 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 liquid heating boiler, which comprises a combustion chamber 13, a hearth 8, a liquid 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 liquid cavity 10; the liquid cavity 10 is provided with a liquid inlet and a liquid outlet 7; the liquid inlet is connected with a water pump 1; the liquid 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 invention, the liquid cavity fin 11 is circumferentially cast or welded on the inner side wall of the liquid cavity 10.
In the invention, the liquid cavity fin 11 is circumferentially cast or welded on the inner side wall of the liquid cavity 10.
In one embodiment of the present invention, a tube bundle front baffle 20 and a tube bundle rear baffle 22 are welded to the front end and the rear end of the liquid chamber 10, respectively; a tube bundle 21 is arranged in the liquid 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 liquid heating boiler provided by the invention is as follows: when the liquid 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, liquid in the liquid cavity 10 is heated through the outer wall of the hearth 8 and the liquid cavity fins 11 or the tube bundle, meanwhile, the flame in the combustion chamber 13 heats exhaust gas flowing through the hearth through the outer wall and the combustion chamber fins 9, and the exhaust gas is exhausted through the exhaust outlet 12. The heated liquid in the outer liquid cavity 10 of the boiler is sent into the external circulation heat absorption device through the liquid outlet 7 under the action of the water pump 1, and the backflow liquid is sent into the liquid cavity 10 again through the liquid inlet of the water pump 1, so that the heating circulation is completed.
In one embodiment of the present invention, the flame generated in the combustion chamber 13 heats the liquid chamber 10 through the hollow tube bundle 21, and since the tube bundles 21 are disposed in the liquid chamber 10, the flame and the flue gas in the furnace chamber 8 can enter the hollow tube bundle 21 to heat the liquid in the liquid chamber 10.
The invention also provides an ignition method of the novel liquid 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 present invention will be described in detail with reference to the following examples, but they 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 1.550kg at the moment. And (3) carrying out a heating-40 ℃ engine antifreeze fluid test, starting the boiler in the test, timing, and after 15 seconds, stabilizing the reading of a boiler hearth temperature sensor, and after the boiler runs for 6 minutes, finishing timing, increasing the temperature of the engine antifreeze fluid to 0 ℃, wherein the reading of an electronic scale is 1.395kg, and the used fuel is 0.155 kg.
The novel boiler working process comprises the following steps: 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, the outer cavity water pump 1 operates, fuel oil is sucked into the oil pump 3 through the oil inlet pipe to form high-voltage fuel oil, the high-voltage fuel oil is sent 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, fresh air is sent into the combustion chamber through the combustion chamber air inlet fan, combustible mixed gas is formed by the air in the front end of the oil injector 15 and the atomized fuel oil, 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, a stable combustion state is formed, liquid in the liquid cavity 10 is heated, meanwhile, the high-.
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 number of the electronic scales is 1.500kg, the anti-freezing fluid test of the engine at the temperature of minus 40 ℃ is also carried out, the boiler is started in the test, the time is counted, after 80 seconds, the number of the temperature sensor of the hearth of the boiler is stable, when the boiler runs for 6 minutes, the time is over, the anti-freezing fluid temperature of the engine rises to minus 15.2 ℃, the number of the electronic scales is 1.352kg, and the used fuel oil is 0.148 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 to ignite the mixed gas on the heat-resistant metal net, then the flame is filled in the combustion chamber to form stable combustion, the outer cavity liquid is heated, and meanwhile, the electric heating wire stops supplying power and is not ignited any more. At least 80 seconds are required from the start-up of the boiler to the formation of stable combustion.
FIG. 3 is a graph comparing the ignition time of a conventional boiler and a 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.
As shown in FIG. 4, it is a graph comparing the temperature rise curves of the conventional boiler and the new boiler
In the figure 4, a thermocouple temperature sensor is arranged at the outlet of the engine antifreeze thermostat, temperature thermocouple electric signals are collected by high-precision ETAS650 testing equipment and input into a computer, temperature numerical values are displayed by using INCA monitoring software, and 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 liquid effect dominance analysis was performed with respect to fig. 4:
because the combustion chamber and the liquid cavity of the novel liquid heating boiler provided by the invention are both provided with the uniform heat conduction fins, the heat transfer efficiency is high, and the liquid temperature is increased. The traditional boiler is only provided with radiating fins on the outer wall of a combustion chamber and only provided with a flow deflector in a liquid cavity, so that the heat transfer efficiency is low and the temperature rise is slow.
Claims (6)
1. A novel liquid heating boiler comprises a combustion chamber, a hearth, a liquid 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 liquid cavity; the liquid cavity is provided with a liquid inlet and a liquid outlet; the liquid inlet is connected with a water pump; the liquid 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 liquid heating boiler according to claim 1, characterized in that a combustion chamber fin is arranged between the hearth 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. The novel liquid heating boiler according to claim 1, wherein liquid chamber fins are cast or welded on the inner side wall of the liquid chamber in the circumferential direction.
4. The novel liquid heating boiler according to claim 2, characterized in that liquid chamber fins are cast or welded on the inner side wall of the liquid chamber in the circumferential direction.
5. The novel liquid 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 liquid chamber respectively; a tube bundle is arranged in the liquid 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 liquid heating boiler according to any one of claims 1 to 5, characterized by comprising 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010590750.4A CN111765626A (en) | 2020-06-24 | 2020-06-24 | Novel liquid heating boiler and ignition method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010590750.4A CN111765626A (en) | 2020-06-24 | 2020-06-24 | Novel liquid heating boiler and ignition method thereof |
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| CN111765626A true CN111765626A (en) | 2020-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833536A (en) * | 2021-02-24 | 2021-05-25 | 徐刘兵 | Environment-friendly boiler convenient for rapid heating up |
Citations (4)
| 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 |
| CN105464850A (en) * | 2015-12-30 | 2016-04-06 | 北京高鑫伟业滤清器有限责任公司 | Fuel heating system and engine system |
| CN213146938U (en) * | 2020-06-24 | 2021-05-07 | 北京高鑫伟业科技有限公司 | Novel liquid heating boiler |
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2020
- 2020-06-24 CN CN202010590750.4A patent/CN111765626A/en active Pending
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| 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 |
| CN105464850A (en) * | 2015-12-30 | 2016-04-06 | 北京高鑫伟业滤清器有限责任公司 | Fuel heating system and engine system |
| CN213146938U (en) * | 2020-06-24 | 2021-05-07 | 北京高鑫伟业科技有限公司 | Novel liquid heating boiler |
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| CN112833536A (en) * | 2021-02-24 | 2021-05-25 | 徐刘兵 | Environment-friendly boiler convenient for rapid heating up |
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