KR900009792Y1 - Imperfection gas remove circuit in comfustion apparatus - Google Patents

Abstract

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Description

Incomplete combustion gas removal circuit of the combustor

1 is an overall block diagram of a combustor to which the present invention combustion gas removal circuit is applied.

2 is a circuit diagram showing in detail the control circuit of the present invention.

3 is a drive circuit diagram of a burner motor and a fan motor of the present invention.

4 is a waveform diagram showing an operating state of the present invention.

5 is a flowchart showing the operation of the carburetor according to the principles of the present invention.

6 is a schematic view of a vaporizer in conjunction with the combustion gas removal circuit of the present invention.

The present invention relates to a petroleum combustor for controlling a burner motor, and more particularly to a circuit for removing incomplete combustion gas generated after a combustion stop.

In a conventional petroleum combustion device equipped with a blower motor, when the power of the combustion device is turned off, the fan motor is operated by leaving it in a post purge state for several minutes. Therefore, the incomplete combustion gas remaining in the burner is discharged out of the combustor. In addition, the gas is released along with unvaporized smoke, and thus unburned air, as well as odors from incomplete combustion gases, are emitted, and carbon monoxide and sulfur dioxide are harmful to the human body.

This phenomenon is present in any fan-ventilated petroleum burner, and one of the most difficult problems for this technology is that it cannot be eliminated unless it flows completely.

However, even if complete combustion is performed during the operation of the combustor, there is a problem that the incomplete combustion state after the combustor stops cannot be removed.

Therefore, the present invention does not burn the combustion gas as the compressed air supplied to the burner after the operation of the combustor is passed through the filter through other paths instead of post-purifying the incomplete combustion gases inside the burner by the fan motor. It was conceived to remove the odor caused by air.

Therefore, the present invention stops the burner motor immediately after the combustor is stopped, and operates a suction motor that guides the burner and the compressed air in the gas tank into the fuel tank. The purpose is to provide.

Therefore, the present invention forms a passage through which the gas tank and the oil tank communicate with each other, and the solenoid valve and the suction motor are installed in the passage, and the oil stop is installed with a filter and operated according to the programming of the microprocessor. Afterwards, the fan motor brakes for a few seconds and immediately stops the burner motor brake circuit part, the fan motor assisting combustion, the burner motor injecting air into the burner, the burner, and the gas and air in the gas tank. The motor driving unit leading to the path, and the solenoid valve and the suction motor driving unit for driving the motor to open the solenoid valve at the same time when the burner motor stops and suck the incomplete combustion gas.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall block diagram of a combustor to which a combustion gas removing circuit of the present invention is applied, and a burner motor speed detection unit detecting a speed of a burner motor of a static power source unit 2 supplying a DC power to a microprocessor 1 for controlling the vaporizer operation. (6), fan motor speed detection unit 7 for detecting the speed of the fan motor, igniter and heater drive unit 8, key input unit 9 for selecting combustion control, and display unit 10 indicating the combustion operation state. In the combustor comprising a flame detection unit (11) for detecting a, the microprocessor (1) assists the combustion of the blower motor brake circuit (3) to cause the fan motor to cause a brake phenomenon for several seconds immediately after the combustion stops. Fan motor, burner motor for injecting air to the burner, motor drive unit (4) for guiding gas and air from the burner and the gas cylinder to another path, and open the solenoid valve when the fan motor stops. At the same time, the solenoid valve and the suction motor drive unit 5 for driving the motor that sucks incomplete combustion gas are constituted.

2 is a detailed circuit diagram of the combustion gas removing circuit of the present invention, and FIG. 3 is a detailed driving circuit of the burner motor BM and the fan motor FM of FIG.

The oxygen gas removing circuit of FIG. 2 includes a burner motor brake circuit part 3, a burner motor, a fan motor and an electronic pump driving part 4, and a solenoid valve and a suction motor driving part 5 together with the electrostatic source part 2 and a microprocessor ( 12) is coupled to the control terminals A ₁ -A ₆ .

The electrostatic source unit 2 is connected to the rectifier (R) to the Ac transformer (T) and one end of the rectifier (R) having a plurality of power terminals (B ₁ ), (B ₂ ) through the resistor (R ₁ ). transistor being connected to the base terminal of the (Q _1), the collector terminal is micro peurosseseo (1) of the transistor (Q _1), an interrupt terminal ( )

The burner motor brake circuit part 3 includes a transistor Q ₂ and a programmable timer IC ₁ , and a resistor is applied to an emitter terminal of the transistor Q ₂ and an input terminal IN of the programmable timer IC ₁ . (R ₂ ) is connected to the electrostatic source unit 1, the base terminal of the transistor Q ₂ is connected to the input terminal A ₁ of the microprocessor 1 by a resistor R ₃ , and a programmable timer (IC _1), the resistance _{(R 4), (R 5} ) capacitive incidents switch (C ₁₎ is connected, the output terminal (out) of the programmable timer (IC ₁₎ is a burner motor, a fan motor, an electronic pump drive It is connected to the burner motor BM of (4).

The burner motor, the fan motor, and the electronic pump driving unit 4 have control terminals A ₂ , A ₃ , and A ₄ of the microprocessor 1 having resistances R _{6 to} R ₈ and port diodes DT. ₁ -DT ₃ ) is connected to the burner motor (BM) and fan motor (FM) of the driving unit of FIG. 3 and the burner motor (BM) and fan motor (FM) driving unit are respectively bridge circuits (BR ₁ ), (BR ₂ ) Triac (TA ₁ ), (TA ₂ ) Resistor (R ₁₂ ), (R ₁₅ ) Phototransistor (PT ₁ ), (PT ₂ ) Resistor (R ₁₃ ), (R ₁₆ ) Capacitor (C ₁ ), And (C ₅ ).

The solenoid valve and the suction motor driving unit 5 are composed of a solenoid valve SV and a photodiode PT ₁ for controlling the transistor Q ₃ and the suction motor M.

Figure 6 shows a carburetor interlocked with the combustion gas removal circuit of the present invention, the igniter (IG) for igniting the flame, the burner (B) for vaporizing the fuel, the nozzle (N) for injecting the fuel detected the flame The speed of the burner motor (BM) burner motor that injects air into the frame rod (FR), the fan motor (FM) fan motor causing the blowing wind, and the gas (C) burner. A photointerrupt (PI) for detecting, an electronic pump (VP) for injecting fuel, and a fuel tank (D) for resisting fuel are provided so as to communicate with each other between the vaporization cylinder (C) and the fuel tank (D). A passage (P) is formed, but the solenoid valve (SV) is installed inside the communication passage (P), and when the solenoid valve (SV) is opened behind the inside of the vaporization cylinder (C) and the burner (B). A suction motor (M) for sucking air and incomplete combustion gas is installed, and in the fuel container (D) The filter F was provided.

Referring to the operational effects of the present invention configured as described above based on the flowchart of Fig. 5a, b as follows.

The present invention configured as described above operates according to the programming of the microprocessor 1 as shown in FIG. 5, in which the burner and the fan motor are turned on in step 101 when the power is turned on, and in step 102 when the power is turned on. Their rotational speed is calculated, and then, in step 103, it is detected whether the burner motor is turned off, and if it is turned off, the procedure goes to step 104.

In step 104, the terminal A ₁ of the microprocessor is controlled as described in detail below to control the solenoid valve and the motor of the valve. (Step 105)

Then, if the burner fan is not on or if the burner motor is on, the carburettor is preheated to the next step 107 according to the function selection of the key input (step 106), and the burner motor is driven again, step 108 Lighted by, lighter. (Step 109)

Then, in step 110, when the ignition detector detects the ignition state, the fan motor is driven (step 111), and the amount of heat is determined in step 112 to control the on / off of the heater (step 112); The speed of the burner and fan motor is then detected in step 114, where detection is led to a continuous operating state of the burner fan motor and, if not detected, to a reset state.

During this operation, the present invention causes the burner motor (BM) to brake for several seconds to stop the burner motor (BM) in order to remove the smell of incomplete combustion gas when the combustor is stopped, and to stop the burner motor (BM) quickly. The suction motor M, which draws air through the filter F, is operated. The AC current of the waveform diagram a in FIG. 4 is applied, and the power is applied to the burner motor BM even after a short circuit of power supply.

At this time, the terminal of the microprocessor (1) ), The interrupt signal consistent with the constant AC cycle is continuously generated, and the terminal (A ₁ ) outputs a signal of "high" level as shown in the waveform diagram (c) of FIG. 4 to turn off the transistor Q ₂ . The interrupt signal () to the programmable timer (IC ₂ ) via R ₂ ). ) Is applied.

This programmable timer IC ₁ has its input terminal Since the interrupt signal from () is repeated twice, the waveform d of FIG. 4 is output.

On the other hand, after the combustion stop, the output of the terminal A ₂ of the microprocessor 1 becomes the "low" level, and the output of the timer IC ₁ is applied to the photodiode PT ₁ to drive the burner motor BM.

However, since the burner motor BM is an AC motor, a brake phenomenon is caused by the output terminal of the programmable timer IC ₁ , and a low level is output from the terminal A ₁ output of the microprocessor ₁ so that the transistor ( O ₂ ) is turned on.

Thus, because the timer program block to the input terminal of the (IC ₁₎ the power supply is shut off and a low output signal from the output terminal (out) of the program block timer (IC ₁₎ a burner motor (BM) is rapidly stopped.

The microprocessor 1 then outputs a signal of " high " level from its terminals A ₅ and A _{6 as} shown in FIG. 4 waveform diagrams (f) and (g).

Therefore, the transistor Q ₃ is driven to open the solenoid valve SV for a predetermined time, and the suction motor M is operated to suck incomplete combustion air inside the burner and air inside the vaporization cylinder C, and again, the fuel tank D Inhaled by) into a water vapor again by the fuel container (D) and is released to the outside through the filter for removing odor (F).

Therefore, the smell of incomplete combustion gas as well as the gas harmful to the human body are removed.

As described above, the present invention provides the compressed air supplied to the burner after the operation of the combustor as well as the incomplete combustion gases in the burner without passing through the filter through the fuel tank without post-purification by the fan motor. Of course, it will provide an advantage that can remove the smell of incombustible gas.

Claims (1)

In a conventional combustion device that is driven controlled by a micro peurosseseo, the micro peurosseseo 1-combustion after the burner motor and the brake to cause the timer immediately abrasion transistor (Q ₂₎ so as to stop the program developer (IC ₁₎ for a few seconds to The burner motor brake circuit unit 3 composed of the resistor R ₂ and the burner motor brake circuit unit 3 receive a signal to stop the burner motor BM, the fan motor FM, and the electronic pump VP. When the motor driving unit 4 and the burner motor BM of the motor driving unit 4 are stopped, the solenoid valve SV is opened and the suction motor M is driven to suck in the non-combustible gas inside the gas cylinder. An incomplete combustion gas removal circuit for a combustor, characterized by comprising a solenoid valve and a suction motor drive unit (5).