CN213146938U - Novel liquid heating boiler - Google Patents
Novel liquid heating boiler Download PDFInfo
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- CN213146938U CN213146938U CN202021198129.5U CN202021198129U CN213146938U CN 213146938 U CN213146938 U CN 213146938U CN 202021198129 U CN202021198129 U CN 202021198129U CN 213146938 U CN213146938 U CN 213146938U
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Abstract
The utility model 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 injector, an ignition electrode and an ignition coil; 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 utility model provides a novel liquid heating boiler, flame is light fire rapidly, and the burning is complete, and heating efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the heating boiler, concretely relates to novel liquid heating boiler.
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.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a novel liquid heating boiler. The utility model provides a novel liquid heating boiler, fuel air proportional control is accurate, and flame is light off rapidly, and the burning is complete.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
the utility model 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 injector, 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 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 utility model provides a novel liquid heating boiler adopts the spark to ignite the high-pressure injection fuel and lets in the air and carry out combustion-supporting mode, and flame is initiated combustion rapidly, and burns completely. 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.
The utility model provides a novel liquid heating boiler, when the boiler starts, the controller at first controls ignition electrode under ignition coil high voltage effect, the ionization air continuously produces the fire arc, then air inlet fan provides the air to the combustion chamber, the oil pump provides high-pressure fuel to the sprayer simultaneously, form and spray the oil mist, form the oil-gas mixture with the air, form initial flame under the ignition of electric arc, flame gets into furnace along with air diffusion, through the liquid of radiating fin heating liquid intracavity in the furnace, waste gas is discharged by furnace exhaust outlet. 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.
The utility model discloses at liquid intracavity welding hollow tube bank, flame and flue gas in the furnace can heat the liquid of liquid intracavity through hollow tube bank for the programming rate of liquid has shortened the time of intensification.
Drawings
FIG. 1 is a schematic diagram of the principle structure of the present invention;
FIG. 2 is a schematic view of the heating structure of the tube bundle of the present invention;
FIG. 3 is a graph comparing the ignition time of a conventional boiler and a new boiler;
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 solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model 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; 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 is connected with an external oil tank through a pipeline.
In the utility model, 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 liquid chamber fin 11 is circumferentially cast or welded on the inner side wall of the liquid chamber 10.
In the present invention, the liquid chamber fin 11 is circumferentially cast or welded on the inner side wall of the liquid 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 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 utility model provides a novel liquid heating boiler's theory of operation does: 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 an embodiment of the present invention, the flame generated in the combustion chamber 13 heats the liquid chamber 10 through the hollow tube bundle 21, because the tube bundle 21 is disposed in the liquid chamber 10, the flame and the flue gas in the furnace 8 can enter the hollow tube bundle 21 to heat the gas in the liquid chamber 10.
The utility model also provides a novel ignition method of liquid heating boiler, including following step:
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 embodiments, 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 sprayer 15 through the connecting pipe and sprayed out in an atomized mode through the fine hole in the front end of the oil sprayer 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 sprayer 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, a stable combustion state is formed, liquid in the liquid cavity 10 is heated, meanwhile, the high-voltage.
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.
As shown in FIG. 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 the figure, a thermocouple temperature sensor is arranged at the outlet of an engine antifreeze thermostat, temperature thermocouple electric signals are collected through high-precision ETAS650 testing equipment and input into a computer, temperature numerical values are displayed through 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 utility model discloses the injection oil mist that the boiler adopted, spark ignition combustion mode, at first, ignition electrode forms continuous fire arc, and the oil pump can produce the high pressure in the twinkling of an eye for fuel atomization forms homogeneous mixture with the air, after the ignition burning, is full of the combustion chamber rapidly, so, the boiler is started to fire soon, only needs 15 seconds just can form stable combustion, and fuel economy is high.
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 utility model provides a novel liquid heating boiler, combustion chamber and liquid chamber all are equipped with even heat conduction fin, and heat transfer efficiency is high, so the liquid temperature risees. 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 (5)
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 circumferentially cast or welded on the inner side wall of the liquid chamber.
4. The novel liquid heating boiler according to claim 2, characterized in that liquid chamber fins are cast or welded circumferentially on the inner side wall of the liquid chamber.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021198129.5U CN213146938U (en) | 2020-06-24 | 2020-06-24 | Novel liquid heating boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021198129.5U CN213146938U (en) | 2020-06-24 | 2020-06-24 | Novel liquid heating boiler |
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| CN213146938U true CN213146938U (en) | 2021-05-07 |
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| CN202021198129.5U Active CN213146938U (en) | 2020-06-24 | 2020-06-24 | Novel liquid heating boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765626A (en) * | 2020-06-24 | 2020-10-13 | 北京高鑫伟业科技有限公司 | Novel liquid heating boiler and ignition method thereof |
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2020
- 2020-06-24 CN CN202021198129.5U patent/CN213146938U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765626A (en) * | 2020-06-24 | 2020-10-13 | 北京高鑫伟业科技有限公司 | Novel liquid heating boiler and ignition method thereof |
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