JPS62138624A - Burner combustion controlling system - Google Patents

Abstract

PURPOSE:To reduce a volume of main fuel to be supplied, to decrease an occurrence of carbon or soot and to prevent an occurrence of fire by a method wherein an inclination detecting sensor may detect an inclined state of a burner and a desired volume of main fuel to be fed into a main combustion chamber is corrected and controlled. CONSTITUTION:When a drying operation is started, an inclination sensing sensor 4 detects an inclined condition of a burner 8, a hot air temperature setting knob is operated to cause a hot air temperature to be set at a desired hot air temperature. An amount of fuel to be supplied into the burner 8 with a fuel supplying device 1 is reduction corrected with a correction device in response to a stored desired amount of fuel in a controller device and then grains are dried at a hot air temperature lower than the desired hot air temperature. When the inclination sensing sensor 4 detects that the burner 8 is inclined, an amount of major fuel to be supplied into the burner 8 through the fuel supplying device 1 is decreased, thereby the eccentrical combustion in the burner 8 is decreased, resulting in that an occurrence of carbon or soot is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a burner combustion control system, and can be used in dryers for drying grain.

Conventional technology Conventionally, a set ignition fuel is supplied to a pre-combustion chamber by a fuel supply device and combusted, and during combustion in this pre-combustion chamber, a pre-set ignition fuel is set at I7. It was a method in which fuel was supplied to the main combustion chamber in a fuel tank, transitioned to main combustion, and combustion continued.

Problems to be Solved by the Invention For example, a dryer for drying grains has a structure in which a burner is installed at the front of the dryer and an exhaust fan is installed at the rear. The set ignition fuel is supplied into the room from the fuel supply device, and this ignition fuel is ignited by the ignition heater to start pre-combustion, and during combustion in this pre-combustion chamber, the fuel supply bag is filled with the set main fuel. The splint 1 is supplied into the main combustion chamber, and is vaporized by the combustion flame generated from the pre-combustion chamber to become vaporized fuel, and this vaporized fuel is ignited by the combustion flame generated from the pre-combustion chamber, resulting in main combustion. The combustion flame of this main combustion becomes hot air,
This hot air is sucked by the exhaust fan, and the grains circulating in the dryer are exposed to this hot air and dried, but the fuel is supplied by the grains dried at the beginning of the drying operation. 1[ of the main fuel f supplied from the device into the main combustion chamber
If J is wide and, for example, a large amount of main fuel is being supplied, and the inclination of the bar is large, a large amount of this main fuel will flow down to the sloped and lower side. When the combustion failure occurs, carbon and soot are generated in large quantities, and if the generated carbon is sucked into the dryer, a fire may occur.

Means for Solving the Problems This invention provides a pre-combustion chamber (2) and a main combustion chamber (3) that receive a set amount of fuel from a fuel supply device (1) and combust it.
and a tilt detection sensor (4) for detecting the tilt state of the burner, and when the tilt detected by the tilt detection sensor (4) detects a set value or more, the fuel supply device (1)
The burner combustion control system is characterized by being equipped with a correction device that corrects and controls the set fuel supply to be reduced by a predetermined amount.

Effect of the invention The set ignition fuel is supplied from the fuel supply device (1) to the pre-combustion chamber (2).
This fuel is combusted in the pre-combustion chamber (?) to form a combustion flame, and during combustion in the pre-combustion chamber (2), the fuel is supplied from the fuel supply device (1) according to the setting. Main combustion chamber (3)
This fuel is vaporized by the combustion flame generated from the pre-combustion chamber (2) and becomes vaporized fuel, and this vaporized fuel is ignited by the combustion flame generated from the pre-combustion chamber (2) to start the main combustion. This combustion flame turns into hot air, and the grains circulating in the dryer are exposed to this hot air and dried.

When the inclination detection sensor (4) detects the inclination state of the burner at the start of this combustion, it detects that the inclination state is more than the set value, the fuel supply device a (1) sends the fuel to the main combustion chamber (3). A predetermined amount correcting device decreases and corrects the set amount of main fuel to be supplied into the main combustion chamber (3), and this reduced amount of main fuel is supplied to the main combustion chamber (3) and combusted.

Effects of the Invention According to this invention, the tilt detection sensor (4) detects the tilt state of the burner, and upon this detection, the set amount of main fuel supplied from the fuel supply device (1) into the main combustion chamber (3) is reduced by a predetermined amount. Due to the correction control, the amount of main fuel to be supplied is reduced, so the burner is less prone to one-sided combustion, which reduces the generation of carbon and soot, and prevents fire from occurring. .

Embodiment In the illustrated example, the wall (6) of the dryer (5) has a rectangular shape in plan view that is long in the front and back direction, and is made up of front and rear wall plates and left and right wall plates, and this front wall plate has a burner case (7). ), and this burner case (7) has a pre-combustion chamber (2) and a main combustion chamber (
3), and an operating device (9) for starting and stopping the dryer (5). This configuration is equipped with an air exhaust m (10) that sucks and exhausts the hot air generated from (8).

A grain collection gutter (11) with a built-in transfer spiral is provided at the lower part of the machine wall (6), and a grain collection gutter (11) is provided above the grain collection gutter (11) with a feed valve (12) built into the lower part. drying room (13
) and (13) to communicate with each other.
), ('+3'l's inner binding ζI+ +A m sect C1
4) This hot air chamber (14) and the burner (8) are vertically formed.
The ventilation chambers (15), (15) are formed between the outside of the drying chamber (13), (13) and the left and right wall plates. 15) and the exhaust air 4il (10
), and a hot air temperature detection sensor (1B) for detecting the hot air temperature in the hot air chamber (14) is installed in the hot air chamber (14), and a motor is installed at the bottom of the rear wall plate. (
17) is provided, and the motor (17) operates the grain collection gutter (11).
It is configured to rotate the transfer spiral inside, the delivery valves (12), (12), the exhaust fan (10), etc.

A storage chamber (18) is formed above the drying chambers (13), (13), and a ceiling plate (18) is formed above the storage chamber (18).
(13) and a transfer gutter (20) with a built-in transfer spiral.
A supply port for supplying the transferred grains into the storage chamber (18) is provided in the center of the transfer gutter (20), and a supply port for supplying the grains into the storage chamber (18) is provided below the supply port. This configuration is provided with a diffusion plate (21) that uniformly diffuses and returns the water to the water.

A grain lifting machine (23) with a built-in bucket conveyor (22) is attached to the front part of the front wall plate, and this lifting PC 41
(23) The upper end and the starting end of the transfer gutter (20) are in communication, and the lower end and the grain collecting gutter (11) l end are in communication, and the grain raising m (23) upper part - On the side is a motor (2
4), and this motor (24) rotates the packet conveyor (22), the transfer spiral in the transfer gutter (20), the spreader plate (21), etc.

A mounting plate (25) having a cross-shaped shape when viewed from the front is provided inside the burner case (7), and this mounting plate (25) can be adjusted up and down and left and right with an adjustment loft (26) with its rear part as a rotating part. The pre-combustion chamber (25) is located below the mounting plate (25).
2), and a main combustion chamber (3) is provided on the upper side, and this main combustion chamber (3) is inserted into an eight-hole wind pipe (58) provided in the burner case (7). .

The pre-combustion chamber (2) has a box-shaped combustion chamber saucer (27) that is open on one side and is fixed to the lower side of the mounting plate (25), and an ignition cloth ( 28), an air control valve (29) for regulating combustion air is rotatably supported at the opening of the combustion chamber saucer (27), and an ignition valve (29) is provided in the center of the air control valve (29). The heater (30) is fixed and the ignition cloth (28) is ignited by the ignition heater (30) when the air control valve (29) is in the closed position.
1l (27) A main fuel supply shaft (31) protruding vertically is provided in the center of the bottom part, a hole is provided in the shaft core part of this main fuel supply shaft (31), and a hole is provided in the center part of the main fuel supply shaft (31), and a hole is provided in the lower end part. Supply pipe (3
2).

The main combustion chamber (3) has a main fuel supply shaft (31), an air hole (31) in the upper part which has a dish shape in side view and in the bottom part through which combustion air passes.
33) at appropriate intervals, a fuel nozzle (35) with a hole in the center, and this fuel nozzle (35).
) A nozzle cover (36) is provided on the upper side, and the central hole of this fuel nozzle (35) is communicated with the hole of the main fuel supply shaft (31), so that the fuel supplied from the supply pipe (32) is The main fuel supply shaft (31) passes through the fuel nozzle (35) to the outer periphery of the fuel nozzle (35) and the nozzle cover (38).
The combustion flame is supplied into the combustion dish (34) through a gap in the inner circumference, and a combustion body (37) having a hole through which combustion flame is ejected is provided on the upper side of the nozzle cover (36), and the mounting plate (
25) On the upper side these combustion dishes (34) and combustion bodies (37)
A hot air guide tube (38) having a cylindrical shape with an open tip when viewed from the side is provided to cover the hot air guide tube (38).
) A hot air diffusion plate (39) is provided at the opening at the tip, and the combustion flame ejected from the hole of the combustion body (37) is
The hot air is diffused by the hot air diffusion plate (39) through the hot air guide tube (38) and sucked into the hot air chamber (14).

A fuel tank (40) is provided at the front of the dryer (5), and a fuel supply device (1) is provided at the side of the mounting plate (25), and this fuel supply device (1) includes a fuel pump and an electromagnetic device. This electromagnetic valve is configured to change the number of times it opens and closes in response to a pulse signal transmitted from the operating device (9), thereby changing the amount of fuel sucked in by the fuel pump. ) through the fuel hose (41) and the fuel pump of the fuel supply device (1), and this fuel pump connects the main twist*4t±
32), and the ignition fuel is supplied onto the ignition cloth (28) via the auxiliary supply pipe (42) by the fuel pump.

A tilt detection sensor (4) is provided on the upper side of the mounting plate (25) to detect the tilt of the head (8) in the front-rear direction and the left-right direction.
), (4) are provided, and this detection sensor (4) is box-shaped, and light emitting elements (43), (
43), a liquid having bubbles (44) is provided in the middle part, light receiving elements (45), (45) are provided in the lower left and right sides, and the mounting plate (25) is, for example, lower on the right side. When the air bubble (44) moves to the left side, when the air bubble (44) moves onto the light receiving element (45) on the left side, the light emitted from the light emitting element (43) on the left side is transferred to the left side. The light receiving element (45) no longer receives light, and the burner (8) is configured to detect that it is an I island with the right side lowered. When the burner (8) is tilted to a state where The inclination detection sensor (4) is configured to detect the inclination of the burner (8) in the front-rear direction, and the inclination detection sensor (4),
If any of the light-receiving elements (45) in (4) does not detect light reception, it is detected that the heath (8) is tilted, and the fuel supply device (1) This is a configuration that reduces the amount of main fuel supplied to the inside.

The operating device (9) is box-shaped, and the surface plate of the box includes a start switch (47) for starting and stopping the dryer (5), a stop switch (4 days), and the burner (4). 8) A hot air temperature setting knob (49) that sets the temperature of the hot air generated from the hot air and a timer sprayer (5) that sets the drying time.
0), and a control device (46) is provided inside, and this control device (46) is connected to each switch (47),
(48) and an input circuit (51) to which the operations of the six holes (49) and (50) are input; an input circuit (52) to which the detection of the tilt detection sensor (4) is input; and the hot air temperature detection. An A-D converter (53) that converts the detection value detected by the sensor (18) into A-D, an input circuit (54) into which the converted value converted by the A-D converter (53) is input, and these A CPU (55) performs arithmetic and logical operations, comparison operations, etc. on various input values input from input circuits (51), (52), and (54).
6) and an output circuit (57) that receives and outputs various commands from the CPU (55), and these input circuits (51), (52), (54), and A −
The D converter (53), CPU (55) and output circuit (57) are connected, and this control device (46)
) controls the starting and stopping of each of the motors (17), (24) and the large point heater (30), and also operates the fuel pump and electromagnetic valve of the fuel supply device (1);
It is configured to change and control the intake amount of fuel by stopping the fuel pump and this electromagnetic valve.
49) and (50) are rotary switches, and when these six switches (49) and (50) are operated, the operating position is input to the input circuit (51).

When the control device (46) operates the hot air temperature setting knob (49), the hot air temperature set and stored in the control device (48) by Keisaku is selected and set, and this set hot air temperature is set. The hot air temperature detection sensor (
16) detects the hot air temperature in the hot air chamber (14), and transfers the detected hot air temperature and the set hot air temperature to the control device (46).
The fuel supply device (1) is controlled to change and control the amount of fuel supplied into the main combustion chamber (3) of the burner (8) so that the difference and the difference become the same when compared. The configuration is such that the detected heat FfL temperature is controlled to be the same as the set hot air temperature. Further, the tilt detection sensor (4), (4)
If any of the light receiving elements (45) does not detect the received light, it is detected that the burner (8) is tilted, and based on this detection, the control device (46) is set and stored. The correction device (5B) controls the fuel supply device (1) to reduce the predetermined amount of fuel, and the set hot air temperature is changed to a lower temperature for correction control. 8. The detected hot air temperature detected by the air temperature detection sensor (16) is displayed on the display window provided on the surface plate of the operating device (9). When the set time set by operating the sprinkler (50) has elapsed, this control device (
46) to automatically stop the dryer (5).

The operating device starts the dryer (5) and simultaneously starts the fuel supply device (1) by operating the six knobs (49) and (50) in (9) and operating the start switch (47). When the engine starts, ignition fuel flows from the fuel tank (40) to the fuel hose (41).
), the fuel is sucked into the fuel supply device (1), is supplied to the ignition cloth (28) via the auxiliary supply pipe (42), and is energized to the ignition heater (30) of the air control valve (29). This ignition heater (30) becomes red hot, and the air control valve (29)
manually rotate the ignition heater (30) to the ignition cloth (2).
8), the ignition cloth (28) is automatically ignited and combustion starts in the pre-combustion chamber (2), and when the set amount of ignition fuel is supplied, the ignition cloth (28) is automatically ignited. The electrical signal changes to the main fuel, and the main fuel is supplied to the fuel supply device (1).
From the supply pipe (32), the main fuel supply shaft (31), the fuel nozzle (35) and the nozzle cover (36) to the combustion dish (
34), and the main fuel supplied into this combustion dish (34) is heated by the combustion flame that burns the combustion dish (34) and the combustion body (37) in the pre-combustion chamber (2). As a result, the vaporized fuel is mixed with the combustion air jetted from the air hole (33) of the combustion dish (34), and this vaporized fuel is mixed with the combustion flame being burned in the pre-combustion chamber (2). The combustion flame is ignited by the hot air guide cylinder (38), and is spread by the heat diffusion plate (39), and then the combustion flame is ignited by the hot air guide cylinder (38) and diffused by the heat diffusion plate (39). ! (1
0), the hot air becomes hot air, which is passed from the hot air chamber (14) to the drying chamber (13) and then to the exhaust chamber (15).
The air is sucked and exhausted by the exhaust air 41 (10) through the dryer (
The grains stored in the storage chamber (18) of 5) are exposed to this hot air and dried while flowing down from the storage chamber (18) into the drying chamber (13), and are then dried by the delivery valve (12). The grains flow down to the lower part, are transferred and discharged by the lower transfer spiral through the grain collection gutter (11) into the grain raising machine (23), and are discharged into the grain raising machine (23).
It is transported to the upper part by the bucket conveyor (22) and supplied into the transfer gutter (20), and is supplied to the diffusion plate (21) via the transfer gutter (20) by the transfer spiral in this transfer gutter (20). , is evenly diffused and reduced into the storage chamber (1 day) by this diffusion plate (21), repeats circulation drying, and when the set time set by the timer spreading (50) has elapsed, the operating device (9) The drying a (5) is automatically controlled by the control device (46) of
) will automatically stop.

At the start of this drying work, if the tilt detection sensor (4) detects that the burner (8) is tilted, the hot air temperature becomes the set hot air temperature set by operating the hot air temperature setting release (49). so that the burner (8) with the fuel supply device (1)
The control device controls the amount of fuel supplied to the inside! The predetermined amount of fuel stored in (48) is reduced by the correction device (5B), and the grains are dried at a hot air temperature lower than the set hot air temperature.

When the tilt detection sensor (4) detects that the burner (8) is tilted, the fuel supply device (1) reduces the amount of main fuel supplied into the burner (8). (8) Since the state of one-way twisting is reduced, the generation of carbon and soot is reduced.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a diagram of the projector, Fig. 2 is a flowchart, Fig. 3 is an enlarged side view, Fig. 4 is an enlarged rear view, and Fig. 5 is an enlarged rear view. Fig. 6 is an enlarged side view of a part of the dryer, Fig. 6 is an overall front view of the dryer partially cut away, and Fig. 7 is an enlarged side view of a part of the dryer.
The figure is an overall side view of the dryer partially cut away, and FIG. 8 is an enlarged front view of a portion of the dryer. In the figure, code (1) is the fuel supply bag d, (2) is the pre-combustion chamber,
(3) shows the main combustion chamber, and (4) shows the tilt detection sensor.

Claims (1)

[Claims] A pre-combustion chamber (2) and a main combustion chamber (3) are provided for receiving a set amount of fuel from a fuel supply device (1) for combustion, and a tilt detection sensor (4) for detecting the tilt state of the burner is provided. The burner is characterized in that it is provided with a correction device that performs correction control to reduce the set amount of fuel supplied by the fuel supply device (1) by a predetermined amount when the slope detected by the slope detection sensor (4) is equal to or higher than a set value. Combustion control method.