JPH02192513A - Motor integrated type oiler burner - Google Patents

Abstract

PURPOSE: To control the pressure of air flowing into a vaporizer by controlling the air being fed to the vaporizer through a fan motor by means of a control valve. CONSTITUTION: The combustor comprises a burner 4 being fed with air and burning petroleum elected through driving of an electronic pump 50, a convection fan 53 and a fan motor 55 for circulating the generated heat through a room, a dust collector 56 for sucking a part of the air being fed through driving of the fan motor, an electronic valve 58 for feeding filtered air into a burner section, a microcomputer 60 for general control, and a section 69 for controlling the driving of the electronic valve 58 according to an output signal from the microcomputer 60 to feed a vaporizer 42 with a correct volume of air. The valve 58 is provided for an air supply pipe 57 and a part of the air being fed by driving the fan motor and sucked to the dust collector is fed through the pipe 57 to the vaporizer 42 in the burner body thus regulating the supply air volume. The electronic valve is also controlled depending on the heating value based on the difference between a room temperature and a set temperature, the driving speed of the fan motor and the room temperature to feed vaporizer 42 with a correct volume of air constantly.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an oil combustion device such as an oil fan motor that heats a room with heat generated by combustion of oil, and particularly relates to a motor-integrated oil combustion device in which a burner motor is integrally formed with a fan motor.

[Prior art]

Conventional oil combustion equipment has separate burner motors and attached fans that allow air to flow into the carburetor, and fan motors and convection fans that exhaust heat generated from combustion of oil into the room and circulate indoor air. was. Therefore,
The burner motor could not accurately control the pressure of the air flowing into the vaporizer ratio. A conventional oil combustion device, for example, as shown in FIG.
A burner body 1 was formed with a vaporizer 2 for burning injected oil, and a thermistor 3 for detecting the temperature of the vaporizer 2 was fixed to the burner body 1. A bracket 4 that surrounds the main body 1 is provided with an igniter 5 that is placed at a constant distance from the main body 1 and that ignites the oil injected into the carburetor 2, and detects the ignition state of the oil using a flame. The frame rod 6 was fixed. When the burner motor 7 is driven, the fan rotates and air is supplied to the vaporizer 2 via the air supply pipe 8 and the inlet 9. A photointerrupter 10 for detecting the rotational speed of the burner motor 7 is arranged behind the burner motor 7. Furthermore, a nozzle 11 is arranged in the center of the inlet 9,
This nozzle 11 is connected to an electronic pump 13 via a fuel supply pipe 12, and the oil supplied from the fuel tank 14 to a temporary tank 15 is transferred to the fuel supply pipe 12 according to the drive of the electronic pump 13.
And nozzle! 1 and is injected into the vaporizer 2. Furthermore, a fan 16 and a fan motor 18 are disposed above the burner body 1, and the fan 16 and the fan motor 18 are arranged to exhaust the heat generated by combustion of oil into the room and circulate the room air. Hall element 17 that detects speed
will also be placed. During operation, such a conventional oil combustion apparatus detects whether or not the burner motor 7 and the fan motor 18 are driven in step 21, as shown in the flow chart shown in FIG. 2, and if they are not driven, Operation is selected in step 24, and the vaporizer 2 is preheated in step 25. When the inside of the vaporizer 2 is preheated to a temperature above which a flame can be ignited, the burner motor 7 is driven in step 26 to cause air to flow into the vaporizer 2 through the air supply pipe 8 and the inlet 9, and in step 27 The igniter 5 is driven to ignite a flame, and at the same time, in step 28, the electronic pump 13 is driven to inject oil from the temporary tank 15 into the carburetor 2 through the oil supply pipe 12 and nozzle 11. In this state, in step 29, it is determined whether the oil injected into the carburetor is ignited by the flame detected by the flame rod 6, and if it is not ignited, in step 34, the operation is reset, that is, the operation is stopped; Stage 30 in case of ignition
At step 31, the fan motor 18 is driven to exhaust heat generated by combustion of oil in the vaporizer into the room and circulate indoor air. At step 31, the amount of heat generated is determined based on the temperature difference between the room temperature and the set temperature. After controlling the burner motor on and off for optimal combustion of oil in step 32, step 3
3, the rotational speeds of the burner motor 7 and fan motor 18 are sensed, and if these rotational speeds are not sensed, the operation is reset or stopped in step 34, and if the respective rotational speeds are sensed, repeating from step 21. carry out. Furthermore, as described above, the burner motor 7 and the fan motor 18
is driven, and in the ignition state, in step 31, based on the amount of heat generated due to the temperature difference between the room temperature and the set temperature,
calculating the rotational speed of the burner motor 7 in step 22;
The rotational speed of the fan motor I8 is calculated in step 23, and then, in accordance with the calculated rotational speed of the burner motor 7, the drive of the burner motor 7 and the fan motor 18 are controlled in step 26. However, in the conventional oil combustion device, the burner motor 7 and the fan motor 18 are installed separately, so the configuration is of course complicated. There are drawbacks such as the inability to precisely control the pressure of air flowing into the vaporizer ratio. In addition, JP-A No. 58-95116 discloses a system in which an air supply fan, an exhaust fan, and a convection fan are installed coaxially, and each of these fans is rotated in conjunction with a hot gas reciprocating engine driven by combustion. Suggests an oil burner. That is, when combustion begins with initial ignition, the switch drives the starting motor to rotate each coaxially installed fan, etc., and when the temperature of the hot gas reciprocating engine rises above the set temperature during combustion operation, Upon sensing this, the bimetal switch is actuated to stop driving the starting motor. At its starting point, the internal working gas in the hot gas reciprocating engine repeatedly compresses and expands due to the temperature differences between its parts as the combustion process takes place, causing the piston to reciprocate, which causes the shaft to rotate. At the same time, the three fans are rotated in conjunction with each other. However, in this patent application, three fans are installed separately, a starting motor that rotates the fans, etc. during initial ignition, and a hot gas reciprocating engine that rotates the fans, etc. when a predetermined temperature rises. , etc., the structure is extremely complicated. Furthermore, the patent application states that the air supply fan, exhaust fan, and convection fan are installed on the same axis, making it impossible to precisely control each fan individually. There are drawbacks that make it difficult to

[Problem to be solved by the invention]

Therefore, it is an object of the present invention to
Although it uses only one fan motor and has a simple configuration, it discharges the heat generated from the combustion of oil into the room.
The object of the present invention is to provide a motor-integrated oil combustion device that not only circulates indoor air but also supplies air with a vaporizer. Another object of the present invention is to precisely control the pressure of the air flowing into the carburetor by controlling the air supplied by the fan motor to the carburetor using an electronic valve, thereby burning oil in an optimal state. An object of the present invention is to provide a motor-integrated oil combustion device.

[Means to solve the problem]

The motor-integrated oil combustion device of the present invention includes a burner section into which air is introduced and which burns the oil injected by the drive of an electronic pump, a convection fan that discharges and circulates heat generated during combustion indoors, and A fan motor, a dust collector that sucks a part of the air blown by the fan motor, an electronic valve that filters this suction air and then flows it into the burner section, and a microcomputer that controls the overall operation. It is equipped with an electronic valve control section that controls the drive of electronic valves in accordance with output signals from a microcomputer to supply an appropriate amount of air to the vaporizer ratio. The motor-integrated oil combustion device of the present invention having the above-mentioned purpose and configuration draws a part of the air blown by the drive of the fan motor into the dust collector, and then passes it through the air supply pipe and inlet to the burner body. An electronic valve is installed in the air supply pipe to allow the air to flow into the carburetor and to adjust the air flowing into the carburetor. Furthermore, the electronic valve is controlled according to the amount of heat generated due to the temperature difference between the room temperature and the set temperature, and the drive speed of the fan motor.The electronic valve is also controlled according to the room temperature, and the carburetor ratio is always supplied with the appropriate amount of air to achieve optimal combustion. I try to do that.

【Example】

Hereinafter, the motor-integrated oil combustion apparatus of the present invention will be described in detail with reference to the accompanying drawings of FIGS. 3 to 7. The motor-integrated oil combustion device of the present invention shown in FIG.
Igniter (or igniter) 45 and flame rod 46
is fixed, and an inlet 47 is connected to the vaporizer 42 of the burner body 41.
Air is supplied through the nozzle 4 at the center of the inlet 47.
8 is installed, and as the electronic pump 50 is driven, oil is injected into the vaporizer 42 through the nozzle 48, and a convection fan 53 and a fan motor 55 are installed on the upper part of the burner body 41, and the rotation speed of the fan motor 55 is A Hall element 54 is installed to detect. A part of the air blown by the fan motor 55 enters a funnel-shaped dust collector 56, and after dust is removed, it can be supplied to the inlet 47 via an air supply pipe 57 and an electronic valve 58. Therefore, air from the precipitator 56 is supplied to the vaporizer 42 under the control of the electronic valve 58. Further, a thermistor 43 for detecting the temperature of the vaporizer 42 is attached to the vaporizer 42, and oil is partially supplied from the fuel tank 51 through the tank 52 and the oil supply pipe 49. FIG. 4 is a control circuit diagram for controlling the operation of the motor-integrated oil combustion device of the present invention. This control circuit includes a microcomputer 60 that controls the overall operation, a power supply section 61 that supplies a voltage of, for example, 5 volts as an operating power source, and a key signal input section 62 that inputs various operation command key signals to the microcomputer 60. , a display section 63 that displays input key signals and operating conditions under the control of the microcomputer 60 , a temperature sensing section 64 that detects room temperature, set temperature, etc., and a flame rod 46 that detects the ignition or ignition state. an igniter and heater drive unit 66 that drives the igniter 45 and the heater; and an electronic pump and fan motor drive unit 67 that controls the drive of the electronic pump 50 and fan motor 55. It includes a fan motor speed sensing section 68 that senses the driving speed of the fan motor 55 using the Hall element 54, and an electronic valve control section 69 that controls the driving of the electronic valve 58. This electronic valve control section 69 is an output terminal OT of the microcomputer 60, as shown in FIG. ~OT? is connected to one end of each of the resistors R1 and R18,
The other ends of the resistors rlt to R+s are connected to the connection points of the series-connected resistors ntt to R2, respectively, and the output terminal OTo
are connected to one end of the resistor Rt+, the ground resistor R3, and the base of the transistor TR through the resistor RII. The collector of this transistor TR is the transistor T.
R, and its emitter is connected to the base of the transistor TR.
1, the resistor R4 connected to the operating power supply B+, the input terminal IN+ of the microcomputer 60, and the input terminal IN through a capacitor C8. The emitter of transistor TR is commonly connected to diode D1, electronic valve 58, and capacitor C2. In the present invention configured as described above, as shown in the flowchart of FIG. 6, the microcomputer 60 detects whether or not the fan motor 55 is driven in step 71, and at this time, the microcomputer 60 detects whether or not the fan motor 55 is driven. Since the fan motor 55 is not driven during the initial drive time, the operating function is selected in step 74 and the vaporizer 42 is preheated to a temperature above the flame ignition temperature in step 75. Once the vaporizer 42 has been preheated to a temperature above which it can ignite a flame, the electronic pump and fan motor drive 67 is activated in step 76.
is controlled to drive the fan motor 55, and in step 77, the electronic valve controller 69 is controlled to open the electronic valve 58. In this way, the fan motor 55 is driven, and the electronic valve 5
8 opens, a part of the air propelled by the fan motor 55 is collected by a PJ collector 56 and flows into the vaporizer 42 via an air supply pipe 57, an electronic valve 58, and an inlet 47. Further, in step 78, the igniter and heater drive unit 66 is controlled to cause the igniter 45 to ignite, and in step 79, the electronic pump and fan motor drive unit 67 is controlled to drive the electronic pump 50. At this time, when the electronic pump 50 is driven, the fuel tank 5I
A portion of the oil supplied to the tank 52 is injected into the carburetor 42 through the oil supply pipe 49 and the nozzle 48, and is then injected into the igniter 45.
It is ignited by the ignition action of In this state, in step 80, the ignition sensing section 65 detects the flame from the flame rod 46 by the signal.
The presence or absence of ignition is detected, and if there is no ignition, the reset or operation is stopped at step 85, and if there is ignition, the operation is stopped at step 81.
The amount of heat generated is determined by the temperature difference between the room temperature sensed by the temperature sensor 64 and the set temperature. Thereafter, in step 82, the burner heater is controlled on and off for optimal combustion of oil, and in step 83, the fan motor 5 is controlled by the sensing signal from the Hall element 54 of the fan motor speed sensor 68.
At step 84, the microcomputer 60 detects the speed of the electronic valve 58 at the input terminal IN.
sense the control of. At this time, the speed of the fan motor 55 is not detected, or
If control of electronic valve 58 is not sensed, step 8
5, the fan motor 5 is reset, that is, the operation is stopped.
If the speed of 5 is sensed and the control of the electronic valve 58 is sensed, step 71 is repeated. Furthermore, when operating as described above, with the fan motor 55 being driven and the electronic valve 58 being controlled, step 7
1, the drive of the fan motor 55 is detected, and step 72
Calculate the rotation speed of the fan motor 55 at step 7.
After calculating the control amount of the electronic valve 58 in step 3, step 7
6, the fan motor 55 is driven, and the electronic valve 5
According to the calculated control variable of 8, in step 77 the electronic valve 5
8, the air flowing into the vaporizer 42 is regulated. That is, the fan motor 55 operates in step 72 with the amount of heat determined in step 81 according to the temperature difference between the room temperature and the set temperature.
The rotational speed to be controlled in the calculation, e.g.
As shown in A of the figure, when there is a temperature difference between the room temperature and the set temperature, the rotational speed to be controlled is calculated as shown in the opening of FIG. 7, and the fan motor 55 is driven at the calculated rotational speed. In order to achieve this, the amount of power to be applied to the fan motor 55 is determined based on the rotational speed of the fan motor 55 sensed by the Hall element 54. Furthermore, once the amount of power to be applied to the fan motor 55 is determined in step 72, the amount of power to be applied to the electronic valve 55 is determined in step 73.
8, the air flowing into the carburetor 42 is adjusted, and according to the calculated control amount, the microcomputer 60 outputs the output terminals OT, ~OT? The electronic valve control section 69 comes to control the electronic valve 58 by outputting a high potential. This electronic valve control section 69 is a microcomputer 6
0 output signal is converted into an analog signal and the electronic valve 5
The voltage (1) applied to the base of the transistor TR in the DA conversion method for controlling the current flowing through the transistor TR is as follows. Here, RX Rz+ Rt* −・= R! I+
2RxRII R12...R1, N is the loss of the output terminal OT o~OT, and J is the output terminal 0To-OT.
This is the number out of 7 that outputs a high potential. Furthermore, the voltage ■ applied to the base of the transistor TR is the Darlington-connected transistor TR, TR.
, by 1! The current is amplified and a constant current is supplied to the electronic valve 58. At this time, the microcomputer 60 senses the current supplied to the electronic valve 58 at the voltage V that is fed back to the input terminal I. , a constant voltage is dropped from the resistor R2 according to the amount of current supplied to the electronic valve 58, and the current supplied to the electronic valve 58 is sensed by the difference between the dropped voltage, that is, the feedback voltage V from the operating power source B+. to accurately control the driving of the electronic valve 58. Furthermore, the oxygen concentration of the air supplied to the vaporizer 42 differs depending on the room temperature, and the higher the room temperature, the lower the amount of oxygen. Therefore, as shown in FIG. Regulation, that is, if the room temperature is high, the vaporizer 4
When the room temperature is low, the electronic valve 58 is controlled so that more air is allowed to flow into the carburetor 42, and when the room temperature is low, the electronic valve 58 is controlled so that less air is allowed to flow into the carburetor 42, thereby combusting oil optimally. ing.

【Effect of the invention】

As explained in detail above, the present invention has a simple configuration, and uses only one fan motor to discharge heat indoors, circulate indoor air, and supply vaporized air. Not only that, but the air inflow to the carburetor ratio is precisely adjusted using an electronic valve, which has the effect of heating the room while combusting oil in the optimum state.

[Brief explanation of the drawing]

Figure 1 is a schematic sectional view showing a conventional oil combustion device, Figure 2
The figure is a flowchart showing the control operation of a conventional oil combustion device, FIG. 3 is a schematic sectional view showing the motor-integrated oil combustion device of the present invention, and FIG. 4 is a schematic sectional view of the motor-integrated oil combustion device of the present invention. The control circuit diagram for controlling the operation, FIG.
6 is a flowchart showing the control operation of the motor-integrated oil combustion device of the present invention, and FIG. FIG. 2 is a graph diagram showing an operating characteristic curve of FIG. 41...burner body, 42...carburizer, 53...
Convection fan, 55... Fan motor, 56... Dust collector, 58... Electronic valve, 60... Microcomputer, 69... Electronic valve control section. Applicant Samsung Electronics Co., Ltd.

Claims (1)

[Claims] 1. In an oil combustion device in which oil and air are introduced into a vaporizer in a burner body, the oil is combusted at a vaporizer ratio, and the generated heat is discharged indoors by a fan motor, the fan motor a dust collector that collects part of the blown air according to the drive of the controller, an electronic valve that allows air from the dust collector to flow into the vaporizer, a microcomputer that controls the overall operation, and a microcomputer that controls the entire operation. A motor-integrated oil combustion device comprising: an electronic valve control section that controls the operation of the electronic valve in accordance with an output signal to supply an appropriate amount of air. 2. The electronic valve control section includes: DA conversion means for converting the output signal into an analog signal; current amplification means for current amplifying the analog signal converted by the DA conversion means and supplying the amplified analog signal to the electronic valve; 2. The oil combustion apparatus according to claim 1, further comprising a detection means for detecting a current value supplied to the valve and inputting the detected current value to the microcomputer. 3. The oil combustion device according to claim 1, wherein the electronic valve allows more air to flow into the carburetor as the room temperature becomes higher. 4. The oil combustion apparatus according to claim 1, wherein the fan motor induces convection of heated air and supplies a portion of the heated air to the vaporizer.