CN216384279U - Liquid fuel combustion control system - Google Patents

Abstract

The patent discloses a liquid fuel combustion control system, which comprises an oil supply system, an air supply system, an igniter (6), a furnace platform sensor (10), a controller (3) and a control panel (4); the oil supply system comprises a spherical pump (5), a motor (501) for providing power for the spherical pump (5), an oil supply electromagnetic valve (504) and a nozzle (9), the air supply system pressurizes air and blows the air into the combustion chamber (2) through an air pipe (801) to disperse and atomize micro liquid drops sprayed out from the nozzle (9); the motor (501), the igniter (6), the fan (8), the temperature sensor (206) and the oil supply electromagnetic valve (504) are electrically connected with the controller (3); ignition control program, fire-off control program and firepower size regulating program software are arranged in the controller (3); the advantages are that: the fuel oil is fully combusted, the combustion efficiency is high, no peculiar smell is generated in the combustion process, and the fuel oil combustion device is energy-saving, environment-friendly, safe and reliable.

Description

Liquid fuel combustion control system

Technical Field

The patent relates to a combustor, especially a liquid fuel burning control system.

Background

The liquid fuel combustion machine is a device for pressurizing and vaporizing liquid fuel into tiny liquid drops and then mixing the tiny liquid drops with air into a dispersed vapor state for ignition and combustion, and comprises an oil pump oil supply atomization system, an ignition system, a fan air supply system, a firepower size adjusting system and the like, compared with the conventional gas combustion machine, the liquid fuel combustion system has a complex control system due to complex structure and high requirements on vapor, the burning of the liquid fuel is insufficient due to the fact that the control system is inaccurate and the ignition of small fire is difficult and the atomization is insufficient, so that the burning is insufficient, the unburned vapor is sprayed out along with the wind after the fire is shut off, the burning efficiency is not high, the fuel is wasted, and the environment is polluted; the above problem is more prominent particularly for liquid fuels having a high calorific value.

Disclosure of Invention

The utility model aims to design a liquid fuel combustion control system, which can realize low-flow and high-pressure output of liquid fuel, fully atomize and combust the liquid fuel after the output, reduce fuel loss, and realize the optimal matching of flow and air volume so as to meet the combustion requirement of the liquid fuel with high heat value.

The technical scheme of the utility model is as follows: a liquid fuel combustion control system, characterized by: comprises an oil supply system, an air supply system, an igniter, a furnace platform sensor, a controller and a control panel; the fuel supply system comprises a spherical pump, a motor for providing power for the spherical pump, a fuel supply electromagnetic valve and a nozzle, wherein the spherical pump is used for sucking fuel and pressurizing the fuel and then conveying the fuel to the nozzle; the air supply system comprises a fan and an air pipe, the fan pressurizes air and blows the air into the combustion chamber through the air pipe, and tiny liquid drops sprayed out from the nozzle are dispersed and atomized; the igniter ignites the vapor fog in the combustion chamber; a temperature sensor is arranged in the combustion chamber and used for detecting the temperature of the combustion chamber; the motor, the igniter, the fan, the temperature sensor, the furnace platform sensor and the oil supply electromagnetic valve are electrically connected with the controller; ignition control program, fire-stopping control program and firepower size regulating program software are arranged in the controller;

the stove sensor is arranged on the stove and used for sensing the position change of the pot body; the control panel is provided with a control knob, a display screen and an alarm, and the control knob, the display screen and the alarm are electrically connected with the controller; the control knob is used for igniting, shutting off fire and manually adjusting firepower, the display screen is used for displaying firepower, fault alarm codes and work instructions, and the alarm is used for giving out audible and visual alarm when in fault;

further, the ignition control program is used for controlling the starting of the fan, the starting of the spherical pump and the opening of the oil supply electromagnetic valve during starting, igniting the oil mist in the combustion chamber, detecting whether the ignition is successful or not, giving an alarm when the ignition is failed, and automatically adjusting the firepower to be minimum after the ignition is successful;

further, the fire-off control program is used for controlling the oil supply electromagnetic valve to be closed and the spherical pump and the fan to be stopped when the machine is shut down, and detecting whether fire-off is successful or not in the process;

furthermore, the firepower adjusting program is used for adjusting the flow rate of steam fog entering the combustion chamber and the flow rate of air supply, the controller adjusts the amount of the oil fog entering the combustion chamber by controlling the rotating speed of a motor of a ball pump of an oil supply system and the opening of an oil supply electromagnetic valve arranged on an oil supply pipeline, adjusts the amount of air entering the combustion chamber by adjusting the rotating speed of a fan, and synchronously adjusts the amount of the oil supply and the amount of the air according to the optimal matching relation of the amount of the oil supply and the amount of the air;

further, a pot moving and fire adjusting control program is also arranged in the controller and used for automatically adjusting the fire power during pot moving; the controller judges whether the pot is moved or not according to the information of the stove sensor, if the condition is met, the pot moving and fire adjusting program is automatically started, and the firepower in the pot moving process is controlled.

The advantage of this patent is:

1) the spherical pump has high pressure and good atomization effect, realizes the optimal matching of the output pressure and flow of the liquid fuel, has full combustion of the fuel oil, high combustion efficiency, no peculiar smell generated in the combustion process, energy conservation and environmental protection;

2) the spherical pump has small volume, is easy to miniaturize, can realize high-pressure and low-flow work, can meet the requirement of low-fire heating with small heat value, is convenient to ignite by the low fire, and expands the thermal regulation range of the liquid burner;

3) the oil supply electromagnetic valve is arranged in front of the nozzle, and is controlled by the controller, when the fire is shut down, the fire power can be gradually reduced by a program, and then the heat supply electromagnetic valve is thoroughly closed to cut off the aerial fog source, so that the aerial fog injection phenomenon caused by insufficient aerial fog combustion when the fire is shut down is eliminated, the fuel is saved, and the environmental pollution is eliminated;

4) a synchronous control module for the rotating speed of the spherical pump and the rotating speed of the fan is arranged in the controller, the oil supply quantity and the air quantity can be simultaneously adjusted according to the preset air-oil ratio through the control rotation of the controller, the optimal matching of the oil quantity and the air quantity is realized, and the optimal combustion effect is achieved;

5) the noise of the combustor mainly comes from the noise of the oil pump, and the noise of the ball-type pump is low, so the noise of the combustor is low;

6) the alarm and the display screen are arranged, when ignition is unsuccessful, fuel is not closed after the ignition is turned off or combustion is abnormal (such as running fault of a fan, oil supply fault and the like), the alarm gives out audible and visual alarm, and an alarm code is displayed on the display screen, so that the safety performance of the burner is improved;

7) the pot moving and fire adjusting program is set, under the condition that instantaneous or short-time small fire is needed, the fire can be automatically adjusted to be small only by sensing the position of the pot through the sensor, the operation of a cook is convenient during frying, the operation process is more comfortable, the cooking quality is improved, and the fuel is saved.

Drawings

FIG. 1: the combustor is arranged on the cooking bench and has a three-dimensional structure schematic diagram;

FIG. 2: a lateral view of a mounting structure of the burner on the cooking bench;

FIG. 3: a front view of the structure of the burner;

FIG. 4: a schematic three-dimensional structure of the combustor;

FIG. 5: FIG. 3 is a cross-sectional view taken along line M-M;

FIG. 6: the spherical pump, the controller and the fan are connected with the structural front view;

FIG. 7: a top view of a spherical pump, a controller and a fan connecting structure;

FIG. 8: a firing program logic diagram;

FIG. 9: a fire shut-off program logic diagram;

FIG. 10: fire power size adjusting program logic diagram;

FIG. 11: moving a pot and adjusting fire program logic diagram;

in the figure: 1-a scaffold; 101-a furnace platform; 102-a mounting plate; 2-a combustion chamber; 201-Long fire circle; 202-fire dividing teeth; 203-a base; 204-outer air duct; 205-hearth; 206-a temperature sensor; 207-air duct; 208-an inner air duct; 209-air pipe connector; 3-a controller; 4-a control panel; 401-control knob; 402-a display screen; 403-alarm; 5-a ball pump; 501-a motor; 502-an oil suction pipe; 503-oil drain pipe; 504-oil supply solenoid valve; 505-a pressure sensor; 6-an igniter; 601-an ignition electrode; 7-a power supply; 8-a fan; 801-air pipe; 9-a nozzle; 10-hearth sensor.

Detailed Description

The following detailed description of the present patent refers to the accompanying drawings and detailed description.

As shown in fig. 1 and 2, in the case that the burner of this patent is used for a household range, a combustion chamber 2 of the burner is fixed on a table top serving as a stove top support 1 through a base 203, a stove top 101 is further provided on the periphery of the combustion chamber 2, the stove top 101 is used for placing a pot or other boiler kitchenware, an exhaust hole is further provided on the stove top 101 for exhausting waste gas generated by combustion, and a stove top sensor 10 is provided on the edge of the stove top. When a cook fries dishes, in order to put seasonings conveniently and adjust the temperature and the like, the cook needs to instantly raise the pot or has arrived beside the stove, so that the situation that the cook continuously raises the pot, wastes fuel, improves the stir-frying quality and improves the taste is avoided, therefore, the stove sensor 10 is arranged at the edge of the stove 101, the firepower is automatically reduced according to the signal of the stove sensor 10 when the pot is moved, the pot bottom is used again to touch the stove sensor 10 when the pot is recovered, and the firepower is recovered. The stove sensor 10 may be a contact switch or an infrared sensor switch. In the case of the contact switch, when the pan is removed from the cooking surface 101, the pan bottom touches the lower cooking surface sensor 10, the heating power is automatically decreased, and when the pan bottom touches the lower cooking surface sensor again, the heating power is automatically restored to the heating power before the heating power is decreased.

The spherical pump is a new principle structure variable displacement type mechanism newly invented in recent years, and has the advantages of small volume and high pressure, and as shown in fig. 6 and 7, the spherical pump 5 is used as a pump for sucking liquid fuel, and the liquid fuel is pressurized and then sprayed out through a nozzle 9 to be atomized and combusted in a combustion chamber 2. The spherical pump 5, the spherical pump motor 501, the fan 8, the controller 3, the base body of the igniter 6, the control panel 4 and the power supply 7 are fixedly arranged on the mounting plate 102, and the mounting plate 102 is arranged on the bracket 1; the igniter electrode 601 of the igniter 6 is connected to the base body of the igniter 6 by a wire; a main shaft of the spherical pump 5 is connected with a motor shaft of the spherical pump motor 501 through a coupler, and the spherical pump motor 501 provides power for the spherical pump 5; the ball pump 5 sucks liquid fuel from the oil tank through an oil suction pipe 502, and an oil discharge pipe 503 of the ball pump 5 is connected with the nozzle 9; a pressure sensor 505 and an oil supply electromagnetic valve 504 are arranged on the oil discharge pipe 503 of the ball pump 5, and the oil supply electromagnetic valve 504 is connected in series with the front end of the nozzle 9 on the oil discharge pipe 503 of the ball pump 5; the power supply 7 respectively supplies power to the fan 8, the spherical pump motor 501, the controller 3, the igniter 6 and the oil supply electromagnetic valve 504; the controller 3 is respectively electrically connected with the igniter 6, the fan 8, the spherical pump motor 501, the pressure sensor 505 and the oil supply electromagnetic valve 504, and is used for controlling the igniter 6 to ignite, the spherical pump 5 and the fan 8 to operate; the pressure sensor 505 is used for detecting the output fuel pressure of the ball pump 5; the fuel supply solenoid valve 504 is used to control the on/off of the liquid fuel line entering the nozzle 9 and to adjust the flow rate of the liquid fuel entering the nozzle 9.

As shown in fig. 3-5, the combustion chamber 2 includes a cup-shaped base 203, a ridge fire ring 201, a distributing gear 202, an annular air duct 207, and a cup-shaped hearth 205, wherein an air duct connector 209 is disposed on a cylindrical side wall of a lower portion of the base 203, a central hole is disposed at a bottom center of the hearth 205, and a plurality of air inlets are respectively disposed on a circumference of a side wall of the hearth 205 and a circumference of a side wall of the air duct 207; a plurality of air inlets on the circumferential side wall of the air duct 207 are positioned at the lower part of the cylinder (the circumferential part of one end close to the bottom of the base 203), the annular air duct 207 is arranged at the bottom of the cavity of the base 203, the hearth 205 is arranged at the upper end of the annular air duct 207 in the cavity of the base 203, the distributing gear 202 is arranged at the upper end opening part of the hearth 205, and the ridge fire ring 201 is arranged on the outer circumference of the distributing gear 202; an annular outer air duct 204 is formed among the outer side wall of the hearth 205, the cylindrical side wall of the air duct 207 and the inner side wall of the base 203, an air duct interface 209 is communicated with the outer air duct 204, and an inner air duct 208 is formed among the inner side wall of the air duct 207, the lower end face of the hearth 205 and the upper end face of the base 203; the air outlet of the fan 8 is connected with the air pipe connector 209 on the base 203 through the air pipe 801, the nozzle 9 and the ignition electrode 601 at the end part of the oil drain pipe 503 penetrate through the bottom of the base 203 and are arranged in the inner air duct 208, and the nozzle 9 and the ignition electrode 601 at the end part are arranged at the central hole at the bottom of the hearth 205; the fan 8 is communicated with the outer air duct 204 of the combustion chamber 2 through an air duct 801, and the fan 8 blows high-pressure air into the outer air duct 204 and the inner air duct 208 through the air duct 801 respectively; air entering the inner air duct 208 is blown upwards to enter the hearth 205 through a central hole at the bottom of the hearth 205, fuel liquid sprayed by the nozzle 9 is blown into the hearth 205 and is blown into aerial fog, the outer air duct 204 is communicated with the inner air duct 208 through an air inlet on the cylindrical side wall of the air duct 207 and is communicated with a combustion cavity of the hearth 205 through an air inlet on the cylindrical side wall of the hearth 205, the fuel aerial fog is further blown and dispersed by the air entering from a plurality of air inlets on the cylindrical side wall of the hearth 205, and the fuel aerial fog sprayed by the nozzle 9 is mixed with the air blown out from an air outlet of the fan 8 in the hearth 205 and then is combusted in the combustion chamber 2 after being discharged and ignited by the ignition electrode 601.

The controller 3 is provided with a spherical pump rotating speed and fan air volume synchronous control module, liquid flow and pressure of the spherical pump 5 are adjusted by adjusting the rotating speed of the fan 8, and meanwhile, the air volume is synchronously and automatically adjusted according to the optimal matching relation between the air volume and the liquid flow.

The power supply 7 is a 24V direct-current storage battery, or can be an external 220V power supply conversion module, and 220V commercial power is converted into a 24V direct-current power supply through the power supply conversion module; different use scenes are facilitated.

The combustion machine further comprises a detection device for detecting whether ignition is successful or not, the size of flame and for detecting the combustion state, the detection device comprises a temperature sensor 206, as shown in fig. 5, the temperature sensor 206 is arranged in the lower part of the hearth 205 of the combustion chamber 2, and the temperature sensor 206 is electrically connected with the controller 3; the detection device can also comprise a flame monitor which is used for detecting the size and the state of the open flame more intuitively, and a probe of the flame monitor is arranged outside the hearth 205 and is electrically connected with the controller 3 through a lead.

The control panel 4 is installed on the bracket 1 through the installation plate 102, a control knob 401 is arranged on the control panel 4, the control knob 401 is a composite knob, the downward pressing is used for ignition, the left and right rotating is used for adjusting the firepower, the control knob 401 is used for controlling the firing, the fire stopping and the firepower adjusting in the downward pressing state, and the control knob 401 is electrically connected with the controller 3; the control panel 4 is also provided with an alarm 403 and a display screen 402, and the display screen 402 is used for displaying the temperature in the hearth, the oil discharge pressure of the ball pump 5, an alarm code and the firepower; the alarm 403 and the display 402 are electrically connected to the controller 3.

An ignition program, a fire-off program, a fire power size adjusting program and pot moving and fire adjusting program software are arranged in the controller 3.

As shown in fig. 8, at the time of ignition, the following operation ignition steps are performed: 1) a control knob 401 on the control panel 4 is manually operated, the control knob 401 is pressed down to start ignition, and whether ignition is carried out is determined according to the time length of an ignition key; generally setting the time to be 2-3 seconds, executing the next step if the time reaches the requirement, or else, returning to firing and needing to press the ignition key again; 2) starting the fan 8 according to the set starting ignition rotating speed; detecting the current value of the fan motor to judge whether the fan 8 is started completely, if the detected current value does not reach the set current value, returning to restart the fan 8, and if the detected current value reaches the set current value, entering the next step; 3) the ignition electrode 601 of the igniter 6 is started; detecting the current value of the igniter 6 to judge whether the ignition is finished, if the detected current value does not reach the set current value, returning to restart the igniter 6 for ignition; entering the next step when the current value is reached; 4) the oil supply solenoid valve 504 is opened; detecting the current value flowing through the oil supply solenoid valve 504 to determine whether the oil supply solenoid valve 504 is opened, and returning to restart the oil supply solenoid valve 504 if the detected current value does not reach the set current value; entering the next step when the current value is reached; 5) starting the spherical pump 5 according to the set starting ignition rotating speed and the set output pressure of the motor; detecting whether the rotating speed of the spherical pump motor 501 reaches a starting ignition rotating speed, presetting the starting ignition rotating speed when the spherical pump starts ignition, and simultaneously detecting the output pressure of the spherical pump 5 through a pressure sensor 505; whether the ignition starting of the spherical pump 5 is successful is judged by detecting whether the rotating speed of the motor 501 of the spherical pump 5 reaches the set starting ignition rotating speed and whether the output pressure of the spherical pump 5 reaches the set starting ignition pressure; if the pressure and the rotating speed are simultaneously satisfied, the spherical pump 5 is started successfully to enter the next step; otherwise, returning to restart;

6) the controller 3 reads the temperature value of the temperature sensor 206, if the temperature rises to a set value, the ignition is successful, otherwise, the ignition is unsuccessful, the temperature of the combustion chamber is detected, and whether the ignition is successful is judged; 7) if the ignition is successful, an indicator lamp on the control surface is turned on, and meanwhile, a firepower adjusting program is switched to: manually adjusting the firepower within a set time; the set time may be 2 seconds to 3 seconds, and if the setting time is not manually operated and adjusted, the minimum fire combustion state is automatically adjusted; the display screen 402 displays the fire magnitude value; if the ignition is not successful, the alarm 403 alarms, the ignition program is closed, and the ignition program needs to be restarted.

As shown in fig. 9, the following fire-off steps are performed when the fire is turned off: 1) manually operating a control knob 401 on the control panel 4, pressing down the control knob 401 to be used as a fire-off key, wherein the pressing-down depth is larger than that of a firing button, and determining whether to fire off according to the duration of the fire-off key; generally setting the time length to be 1-2 seconds, determining whether to shut down the fire according to the time length of the fire shutting key, if the time length reaches a set value, executing the next step, and if not, returning to the fire shutting key and needing to press the fire shutting key again; 2) closing the ball pump 5; detecting the rotating speed and the output pressure of the spherical pump 5, and entering the next step after the output pressure and the rotating speed of the spherical pump motor 501 simultaneously meet the set conditions; the output pressure and the rotating speed of the spherical pump 5 in the fire-off state are generally set to be 0, otherwise, the spherical pump returns to be closed again; 3) closing the oil supply solenoid valve 504; detecting the current value of the electromagnetic valve to judge whether the electromagnetic valve is closed successfully or not, and entering the next step after the current value reaches a set value when the electromagnetic valve is closed; otherwise, returning to close again; 4) the fan 8 is turned off in a delayed manner; the fan 8 is operated for a set time length at a set air volume, namely the maximum air volume, and then the fan 8 is closed; after the delay operation time length is detected and the current of the fan motor is judged to meet the set value at the same time, the fan 8 is closed successfully and enters the next step; otherwise, the fan 8 is closed after continuously running for a set time; 5) detecting the temperature of the combustion chamber 2, and entering the next step after the temperature reaches a set fire-off value; otherwise, returning to the previous step; 6) and (5) stopping the fire.

As shown in fig. 10, when the fire power is adjusted, the following steps are performed:

and (3) small fire adjustment: 1) the control button 401 is manually operated, and is used as a fire adjusting button for reducing fire power when the left-handed fire is rotated, and the fire power of the left-handed fire adjusting knob is continuously reduced; 2) the motor rotating speeds of the spherical pump 5 and the fan 8 are synchronously adjusted, and the rotating speed of the spherical pump motor 501 and the rotating speed of the fan 8 motor are gradually reduced in the left-hand rotating process; 3) the adjustment is completed after the motor current of the fan 8 is detected to be reduced to a set value, the pressure of the spherical pump 5 and the rotating speed of the spherical pump motor 501 are detected to be reduced to the set value, and the firepower is reduced;

and (3) fire increasing step: 1) the control button 401 is manually operated, when the fire power is increased, the fire power is increased as a fire adjusting button when the fire power is rotated rightwards, and the fire power of the right-handed fire adjusting knob is increased continuously; (ii) a 2) The motor rotating speeds of the spherical pump 5 and the fan 8 are synchronously adjusted, and the rotating speed of the spherical pump motor 501 and the rotating speed of the fan 8 are gradually increased in the right-handed rotating process; 3) after the motor current of the fan 8 is detected to be increased to a set value, the pressure of the spherical pump 5 and the rotating speed of the spherical pump motor 501 are detected to be increased to the set value, the adjustment is completed, and the firepower is increased.

As shown in fig. 11, during cooking, especially when professional cooks such as restaurants and dining halls operate, the duration of heat is very important, and when the cooks need to adjust small fire temporarily, for example, when seasonings are put in, stir-fry quickly, and instantly lower fire, the cooks often lift or move the pot away, but the time is short, so the cooks do not need to turn off the fire. At the moment, a pot moving and fire adjusting program needs to be started, so that the fire power is reduced, the operation of a cook is facilitated, and the energy is saved.

The pot moving and fire adjusting program executes the following steps: 1) the controller 3 reads and records the firepower value in the normal use process; 2) judging whether the edge of the cooker approaches to the stove sensor 10; 3) if the judgment result is that the furnace platform sensor 10 is approached, a firepower adjusting program is switched to automatically adjust the firepower to be the minimum value; if the judgment result is that the furnace platform sensor 10 is not close, the adjustment is not performed temporarily, and the previous step is returned; 4) judging whether the edge of the cooker approaches the stove sensor 10 again; 5) if the judgment result is that the furnace platform sensor 10 is approached, a firepower adjusting program is switched to automatically adjust the firepower to the firepower recorded in the step 1; if the judgment result is that the furnace platform sensor is not close, the adjustment is not performed for the moment, and the previous step is returned.

Claims (5)

1. A liquid fuel combustion control system, characterized by: comprises an oil supply system, an air supply system, an igniter (6), a furnace platform sensor (10), a controller (3) and a control panel (4); the oil supply system comprises a spherical pump (5), a motor (501) for providing power for the spherical pump (5), an oil supply electromagnetic valve (504) and a nozzle (9), wherein the spherical pump (5) is used for sucking fuel oil and pressurizing the fuel oil and then conveying the fuel oil to the nozzle (9), the oil supply electromagnetic valve (504) is arranged on a pipeline between the spherical pump (5) and the nozzle (9) for adjusting the flow rate of the fuel oil, the nozzle (9) sprays the high-pressure fuel oil into a combustion chamber (2) in the form of tiny liquid drops, the air supply system comprises a fan (8) and an air pipe (801), the fan (8) pressurizes air and then blows the air into the combustion chamber (2) through the air pipe (801) to disperse and atomize the tiny liquid drops sprayed by the nozzle (9), an igniter (6) ignites vapor in the combustion chamber (2), a temperature sensor (206) is arranged in the combustion chamber (2) and used for detecting the temperature in the combustion chamber, and the motor (501), The igniter (6), the fan (8), the temperature sensor (206), the furnace platform sensor (10) and the oil supply electromagnetic valve (504) are electrically connected with the controller (3); ignition control program, fire shutoff control program, firepower size adjusting program and pot moving and fire adjusting control program software are arranged in the controller (3);

the stove table sensor (10) is arranged on the stove table (101) and used for sensing the position change of the pot body; the control panel (4) is provided with a control knob (401), a display screen (402) and an alarm (403), and the control knob (401), the display screen (402) and the alarm (403) are electrically connected with the controller (3); the control knob (401) is used for igniting, shutting off fire and manually adjusting firepower, the display screen (402) is used for displaying firepower, fault alarm codes and work instructions, and the alarm (403) is used for giving out sound-light alarm when in fault.

2. A liquid fuel combustion control system as set forth in claim 1 wherein: the ignition control program is used for controlling the starting of the fan (8), the starting of the ball-type pump (5) and the opening of the oil supply electromagnetic valve (504) during startup, igniting oil mist in the combustion chamber (2), detecting whether ignition is successful or not, giving an alarm when ignition is failed, and automatically adjusting firepower to be minimum after ignition is successful.

3. A liquid fuel combustion control system as set forth in claim 1 wherein: and the fire shutting control program is used for controlling the oil supply electromagnetic valve (504) to be closed, the spherical pump (5) and the fan (8) to be stopped when the machine is shut down, and detecting whether the fire is shut down successfully or not in the process.

4. A liquid fuel combustion control system as set forth in claim 1 wherein: the fire power size adjusting program is used for adjusting the flow rate of vapor fog entering the combustion chamber (2) and the flow rate of air supply, the controller (3) adjusts the amount of the oil fog entering the combustion chamber (2) by controlling the rotating speed of a motor (501) of a ball pump (5) of an oil supply system and opening an oil supply electromagnetic valve (504) arranged on an oil supply pipeline, the amount of the air entering the combustion chamber (2) is adjusted by adjusting the rotating speed of a fan (8), and the amount of the oil supply and the amount of the air are synchronously adjusted according to the optimal matching relation of the amount of the oil supply and the amount of the air.

5. A liquid fuel combustion control system as set forth in claim 1 wherein: the pot moving and fire adjusting control program is used for automatically adjusting the fire power during pot moving, the controller (3) judges whether a pot is moved or not according to the information transmitted by the stove sensor (10), and if the pot moving condition is met, the pot moving and fire adjusting program is automatically started to control the fire power in the pot moving process.

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