JPH04327715A - Liquid fuel combustion device - Google Patents

Abstract

PURPOSE:To detect the clogging in the filter that is used for a liquid fuel combustion device and inform the user of it. CONSTITUTION:Impurities such as refuses, dusts, etc., in the liquid fuel stored in a tank 21 are removed by a fuel filter 23 and the fuel is sent out to an oil receiving pan 22. And the fuel is sent from the oil receiving pan 22 to the combustion section 25 and there it buns. Here, when the impurities removed by the fuel filter 23 accumulate and the fuel filter 23 is in the state of clogging, it is detected by a control section 26, and a clogging informing section 24 is operated and the user is informed of the clogging by means of a buzzer-lamp, etc.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid fuel combustion device, and particularly to a device equipped with a fuel filter for removing impurities from liquid fuel.

0002

[Prior Art] FIG. 10 shows, for example, Japanese Patent Application Laid-Open No. 64-84016
FIG. 11 is a block diagram showing the remaining liquid fuel amount display section of the conventional liquid fuel combustion device shown in the above publication.

In the figure, 1 is an airtight tank, 2 is an oil gauge window, 3 is an oil pan, 4 is an oil supply filter, 5 is a weight sensor, 6 and 7 are actuators, 8 is a strain plate, 9 is a strain sensor, 10 is a bottom plate, 11 is a combustor, 12 is a fuel pump, 13 is a blower, 14 is a combustion chamber, 15 is a blower fan,
16 is an outer case, 17 is a circuit board, 18 is a microcomputer board, 19 is an indicator, and 20 is a calibration switch.

Next, the operation will be explained. The airtight tank 1 stores liquid fuel such as kerosene and is configured to be detachable from the main body. The oil pan 3 stores fuel supplied to the combustor 11 at a constant level. This oil pan 3
The fuel inside is automatically replenished from the airtight tank 1 using the pressure difference, and at this time, dirt, dust, etc. in the fuel are removed through the fuel supply filter. The weight sensor 5 includes actuators 6 and 7, a strain plate 8, and a strain sensor 9. This weight sensor 5 is provided between the oil pan 3 and the bottom plate 10, and detects the total weight of the oil pan 3 and the airtight tank 1 thereon via the strain plate 8 and actuators 6 and 7. The actuators 6 and 7 transfer the load between the airtight tank 1 and the oil pan 3 to the strain plate 8.
tell to. When the strain plate 8 is distorted by this transmitted load, the strain sensor 9 outputs an electrical signal that changes in accordance with this distortion. The total weight of the airtight tank 1 and the oil pan 3 is predetermined. Therefore, the weight sensor 5 provides a detection output regarding the total weight of the fuel stored in the airtight tank 1 and the oil pan 3, respectively.

The detection output of the weight sensor 5 is transmitted to the circuit board 17.
After processing such as amplification and bias correction by the signal processing circuit inside, the indicator meter 1, which is a type of analog indicator, is
given to 9. The display panel of the indicator meter 19 is provided with scales and letters that indicate the input level as an oil amount. The mounting position of this indicator meter 19 can be freely selected. Therefore, the liquid fuel combustion device can be mounted at any conveniently visible position. Thereby, the total amount of liquid fuel remaining in the airtight tank 1 and the oil pan 3 is displayed in an easy-to-read manner, regardless of the amount.

Furthermore, as a calibration means when the output of the weight sensor changes over time or due to environmental conditions, for example, the calibration switch 20 is set to be operated when the kerosene fuel in the airtight tank 1 is empty. Set the calibration switch 2
0 is operated, a trigger signal B is input to the microcomputer on the microcomputer board 18, and the microcomputer A/D converts the signal A corresponding to the sensor output from the weight sensor 5 at that time, stores it in the memory, and sends it to the airtight tank 1. Stores the calibration value when the kerosene fuel in the tank is empty. From that point on, the signal A from the weight sensor 5 is corrected using the value stored in the microcomputer, and the corrected value is displayed on the indicator meter 19. That is, A of the signal A of the weight sensor 5
The remaining amount of kerosene fuel in the cartridge type airtight tank 1 is calculated based on the deviation between the /D conversion value and the value stored in the microcomputer, and is displayed on the indicator meter 19.

[0007]

[Problems to be Solved by the Invention] The conventional liquid fuel combustion device is constructed as described above, and the remaining amount of kerosene in the airtight tank 1 is displayed on the indicator 19 using the weight sensor 5. However, if the removed dirt, dust, etc. accumulate in the fuel filter 4 and the fuel filter 4 becomes clogged, even though the indicator meter 19 indicates that there is fuel remaining. Since combustion is not supplied to the combustor 11, combustion stops, and since clogging cannot be detected, the user is not notified of clogging.

[0008] This invention was made to solve the above-mentioned problems, and an object of the present invention is to obtain a liquid fuel combustion device that can detect clogging of a fuel filter and notify the user of the clogging. .

[0009]

[Means for Solving the Problems] A liquid fuel combustion device according to the first invention includes a cartridge-type tank for storing liquid fuel, an oil receiver for temporarily storing liquid combustion sent from the tank, and an oil tray for temporarily storing liquid combustion sent from the tank. a fuel filter that removes impurities in the liquid fuel sent to the oil pan; a clogging notification section that notifies the fuel filter of clogging; and a combustion section that performs combustion using the liquid fuel in the oil pan. The fuel filter includes a control section that detects clogging of the fuel filter and operates the clogging notification section.

[0010] The liquid fuel combustion device according to the second invention includes a cartridge type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank,
an oil receiver for temporarily storing the liquid fuel delivered from the tank; a fuel filter for removing impurities from the liquid fuel delivered to the oil receiver; and a residue for detecting the remaining amount of liquid fuel in the oil receiver. an amount detector, a clogging alarm unit that notifies the clogging of the fuel filter, a combustion unit that performs combustion using the liquid fuel in the oil pan, and a combustion unit that performs combustion using the liquid fuel in the oil pan; When the liquid fuel stops, if the weight of the liquid fuel measured by the weight sensor is a value that can be sent to the oil receiver, and the remaining amount of liquid fuel measured by the remaining amount detector is a value indicating insufficient remaining amount, the clogging alarm is issued. and a control section that operates the section.

[0011] The liquid fuel combustion device according to the third invention includes a cartridge type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank, and
an oil receiver for temporarily storing liquid fuel delivered from the tank; a fuel filter for removing impurities in the liquid fuel delivered to the oil receiver; and a remaining amount for detecting the remaining amount of liquid fuel in the oil receiver. A detector, a clogging alarm part that reports clogging of the fuel filter, a combustion part that performs combustion using the liquid fuel in the oil pan, a timer that counts time, and the tank are installed in the main body. , the timer starts counting time from the time when the liquid fuel starts to be delivered to the oil pan, and after a predetermined time period required for replenishing the oil pan with the liquid fuel in the tank has elapsed, the remaining amount detector detects the time. If the remaining amount of liquid fuel is a value indicating insufficient remaining amount,
and a control section that operates the clogging notification section.

The liquid fuel combustion device according to the fourth invention includes a cartridge type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank,
an oil receiver for temporarily storing liquid fuel delivered from the tank; a fuel filter for removing impurities in the liquid fuel delivered to the oil receiver; and a remaining amount for detecting the remaining amount of liquid fuel in the oil receiver. a detector, a clogging alarm unit that notifies the fuel filter of clogging, a combustion unit that performs combustion using the liquid fuel in the oil pan, a timer that counts time, and a clogging unit that performs combustion using the liquid fuel in the oil pan; , if the weight of the liquid fuel measured by the weight sensor is a value that can be sent to the oil receiving tray, and the remaining amount of liquid fuel measured by the remaining amount detector is a value indicating that the remaining amount is insufficient, from that point on, the timer starts If the remaining amount of liquid fuel determined by the remaining amount detector is a value indicating insufficient remaining amount after a predetermined time period required for replenishing the liquid fuel in the tank to the oil pan after starting time counting, and a control section that operates the clogging notification section.

[0013] The liquid fuel combustion device according to the fifth invention includes a cartridge type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank,
an oil receiver for temporarily storing liquid fuel delivered from the tank; a fuel filter for removing impurities in the liquid fuel delivered to the oil receiver; and a remaining amount for detecting the remaining amount of liquid fuel in the oil receiver. a detector, a clogging alarm unit that notifies the fuel filter of clogging, a combustion unit that performs combustion using the liquid fuel in the oil pan, a timer that counts time, and a clogging unit that performs combustion using the liquid fuel in the oil pan; From the time when the remaining amount of liquid fuel is detected by the remaining amount detector to be a value indicating insufficient remaining amount, the timer starts counting time, and the liquid fuel in the tank is poured into the oil receiving tray. and a control unit that stops combustion in the combustion unit after a predetermined time required for replenishment has elapsed, and operates the clogging notification unit if the weight of the liquid fuel measured by the weight sensor does not indicate a decrease. It is something that

[0014]

[Operation] The liquid fuel combustion device in this first invention has the following features:
The control unit detects clogging of the fuel filter and activates the clogging notification unit to notify the user of the clogging.

[0015] In the liquid fuel combustion device according to the second invention, when combustion in the fuel section suddenly stops, the weight sensor detects that the weight of the liquid fuel in the tank is a value sufficient to send it to the oil pan. Nevertheless, if the remaining amount detector detects a value indicating that the amount of liquid fuel in the oil pan is insufficient, the control section determines that the combustion filter is clogged, activates the clogging alarm section, and prevents use. Notify the operator of a clogged combustion filter.

[0016] The liquid fuel combustion device according to the third invention uses a timer to count the predetermined time required to replenish the liquid fuel in the tank into the oil pan from the time when the tank storing the liquid fuel is installed in the main body. However, if the remaining amount detector detects a value indicating insufficient amount of liquid fuel after counting, the control section determines that the remaining amount is insufficient due to clogging of the fuel filter, and activates the clogging alarm section, Informs the user of a clogged fuel filter.

[0017] In the liquid fuel combustion device according to the fourth invention, during combustion in the combustion section, the weight sensor detects that the weight of the liquid fuel in the tank is only an amount that can be sent to the oil pan, and the remaining amount is From the moment the amount detector detects that the amount of liquid fuel remaining in the oil pan is insufficient,
The predetermined time required to replenish the liquid fuel in the tank to the oil pan is counted, and if the remaining amount detector detects a value indicating insufficient amount of liquid fuel after counting, the control unit automatically shuts down the fuel filter. It determines that there is insufficient fuel remaining due to clogging, and activates the clogging notification section to notify the user of the clogging of the fuel filter.

[0018] In the liquid fuel combustion device according to the fifth aspect of the present invention, during combustion in the combustion section, the remaining amount of liquid fuel in the oil pan is detected by the remaining amount detector to be a value indicating insufficient remaining amount. , the predetermined time required to replenish the liquid fuel in the tank into the oil pan is counted, and after counting, combustion by the combustion section is stopped, and if a decrease in the weight of the liquid fuel is not detected by the weight sensor, the control section It is determined that there is insufficient fuel remaining due to clogging of the fuel filter, and the clogging notification section is activated to notify the user of the clogging of the fuel filter.

[0019]

【Example】

Example 1. FIG. 1 is a block diagram of a liquid fuel device showing an embodiment of the first invention. In the figure, 21 is a cartridge type tank that stores liquid fuel, and 22 is a tank 2.
an oil tray for temporarily storing the liquid fuel sent out from 1;
3 is a fuel filter that filters the liquid fuel sent to the oil pan 22 and removes impurities; 24 is a clogging notification unit that notifies the user of clogging of the fuel filter by means of a buzzer or lamp (not shown); 25 is a combustion section that performs combustion using the liquid fuel in the oil pan 22; 26 is a combustion filter 2;
This is a control unit that detects clogging No. 3 and operates the clogging notification unit 24.

Next, the operation will be explained. Impurities such as dirt and dust are removed from the liquid fuel stored in the tank 21 by a fuel filter, and the oil receiving tray 22 is sent out. The oil is then sent from the oil pan 22 to the combustion section 25, where it is burned. Here, if the impurities removed by the combustion filter 23 accumulate and the combustion filter 23 becomes clogged, the control unit 26 detects,
The clogging notification section is activated to notify the user of clogging using a buzzer, lamp, etc.

Example 2. FIG. 2 is an internal configuration diagram of a liquid fuel combustion device showing an embodiment of the second invention, FIG. 3 is a simplified block diagram thereof, and FIG. 4 is various displays when the liquid fuel combustion device is used in a hot air heater. FIG. 5 is a flowchart showing the operation up to notification of clogging of the fuel filter. Note that in this embodiment, kerosene is used as the liquid fuel.

In the figure, 21 to 26 are the same or equivalent parts as in the first invention, and therefore their explanation will be omitted. 27 is a weight sensor that detects the weight of the tank 21, and 28 is a float switch that uses a float to detect the remaining amount of kerosene in the oil pan 22, indicating a remaining amount detector. 29 is an electromagnetic pump that pumps kerosene through the oil pipe 30; 31 is a leveling device that keeps the kerosene pumped by the electromagnetic pump at a constant oil level; 3
Reference numeral 2 denotes a combustion motor, which rotates a blower fan 33 to pressurize the kerosene level in the oil level regulator 31. A solenoid 34 adjusts the amount of pressure applied to the kerosene surface. Reference numeral 35 denotes a combustor that vaporizes and burns the kerosene delivered from the oil level regulator 31, and indicates a combustion section, and is further equipped with a flame detector 36 that detects the combustion state by the presence or absence of flame. Reference numeral 37 is a control section that has a microcomputer and controls each part, and 38 is a clogging alarm section that flashes the word "filter" to notify the user of clogging of the fuel filter.

Next, the operation of the hot air heater as a whole will be explained using FIG. 2. First, kerosene is poured into the tank 21 and placed above the oil pan 22. Then, kerosene is replenished from the lower part of the tank 21 into the oil pan 22 through the fuel filter 23 until a predetermined amount is reached. At this time, the kerosene is filtered by the fuel filter 23 to remove impurities such as dirt and dust. Then, the kerosene in the oil pan 22 is sucked up by the electromagnetic pump 29 through the oil feed pipe 30 to the oil level regulator 31 to maintain a constant oil level. Thereafter, the blower fan 33 is rotated by the combustion motor 32, and a predetermined wind pressure is applied to the oil level regulator 31 via the solenoid 34 to blow out kerosene into the combustor 35. Furthermore, since the combustor 35 is preheated and warmed,
Kerosene is vaporized and ignited to burn it. The combustion state is constantly detected by the flame detector 36, and when no flame is detected, the injection of kerosene into the combustor 32 is stopped and the operation is stopped.

The amount of kerosene stored in the tank 21 is determined by detecting the weight of the tank 21 with a weight sensor 27, converting this weight value into the amount of kerosene stored, and displaying it (indicator meter 1 in the figure).
9 equivalent).

Next, the state of each part when the fuel filter 23 becomes clogged will be explained. First, since the amount of kerosene passing through the fuel filter 23 is significantly reduced, the amount of kerosene replenished from the tank 21 to the oil pan 22 is reduced, making it difficult for the amount of kerosene stored in the tank 21 to decrease. Also,
The kerosene in the oil pan 22 is sent to the combustor 35 and burned even though the amount of replenishment from the tank 21 is small, so the amount of kerosene stored in the oil pan 22 decreases and is eventually sent to the combustor 32. As a result, the combustor 35 is extinguished.

Next, referring to FIG. 5, the operation of detecting clogging of the combustion filter 23 using the weight sensor 27 and float switch 28 and notifying the user of the clogging will be explained. First, in step 51, kerosene is burned in the combustor 35. In step 52, the presence or absence of a flame in the combustor 35 is detected by the flame detector 36, and it is determined whether the flame is extinguished. If there is a flame, the process returns to step 51 to continue combustion; if there is no flame, the process proceeds to the next step. Step 5
3, it is checked by the weight sensor 27 whether kerosene is stored in the tank 21. If no kerosene is stored and the fuel is out, the process proceeds to step 54, where an abnormality display indicating that the fuel is out is displayed and the user is prompted to replenish the tank 21 with kerosene. Further, if kerosene is stored, proceed to the next step. In step 55, it is checked by the float switch 28 whether kerosene is stored in the oil pan 22. If it is stored, the process advances to step 56 and other abnormalities are displayed. If the fuel is not stored, the control unit 37 determines that the combustion filter 23 is clogged, and step 57
At step 58, the operation of the combustor 35 is stopped, and at step 58, the clogging notification section 35 is made to blink to notify the user of the clogging.

Example 3. FIG. 6 is a simplified block diagram of a liquid fuel combustion apparatus showing an embodiment of the third invention, and FIG. 7 is a flowchart showing operations up to notification of clogging of the fuel filter. Note that FIGS. 2 and 4 of the second embodiment of the invention are used for the internal configuration diagram of the liquid fuel combustion device and the external views of various display parts.

In the figure, 27-29, 32, 36-3
Reference numeral 9 is the same or equivalent part as in the embodiment of the second invention, so the explanation thereof will be omitted. 39 is a timer that counts time.

Next, the operation will be explained. First, when the kerosene in the tank 21 becomes empty due to combustion of liquid fuel and the remaining amount of kerosene in the oil pan 22 decreases to a predetermined amount that requires replenishment, the tank 21 is removed and the user injects kerosene into the tank 21. Thereafter, in step 61, the tank 21 is installed above the oil pan 22, and kerosene is replenished from the tank 21 into the oil pan 22. here,
The time required for kerosene from the tank 21 to reach a specified amount to fill the oil pan 22 when the fuel filter is not clogged is counted in advance. Then, this required time is counted by the timer 39 in step 62. After the required time has elapsed, in step 63 the float switch 2
8 to check whether the remaining amount of kerosene in the oil pan 22 has reached the specified value. Then, if the fuel filter 23 is not clogged and the permeation amount of kerosene is normal, the time count by the timer 39 is cleared in step 64 because it reaches the specified value. If the filter is clogged, the amount of kerosene passing through it will be small, so it will not reach the specified value and the process will proceed to the next step. In step 65, the clogging notification section 35 is made to blink to notify the user of the clogging. Furthermore, if the tank 21 is not installed, the timer 39 clears the time count based on the detection by the weight sensor 27 that the tank is not installed.

Example 4. FIG. 8 is a flowchart showing the operation up to notification of clogging of the fuel filter according to an embodiment of the fourth invention. The internal configuration diagram, simple block diagram, and external view of various display parts of the liquid fuel combustion device are shown in FIGS. 2, 6, and 6 of the second and third embodiments, respectively.
Figure 4 will be used.

Next, the operation will be explained. First, in step 71, the combustor 35 burns kerosene. In step 72, it is checked by the weight sensor 23 whether the amount of kerosene stored in the tank 21 is an amount that can be sent to the oil receiving tray 22. If the amount that can be delivered has been reached, the process proceeds to step 73, where it is checked by the float switch 28 whether the remaining amount of kerosene in the oil pan 22 is such that it requires replenishment from the tank 21. If the amount requires replenishment, the process proceeds to step 74, and the timer 39 sets the time required for the kerosene from the tank 21 to reach the specified amount to fill the oil pan 22 when the combustion filter 23 is not clogged. Count. In step 75, it is checked whether the kerosene in the oil pan 22 has reached the specified amount after the required time has elapsed;
If the combustion filter 23 is not reached, the control unit 37 controls the combustion filter 23.
It is determined that there is clogging, and in step 76, the clogging notification section 38 is made to blink to notify the user of the clogging.

Example 5. FIG. 9 is a flowchart showing the operation up to notification of clogging of the fuel filter according to an embodiment of the fifth invention. The internal configuration diagram, simple block diagram, and external view of various display parts of the liquid fuel combustion device are shown in FIGS. 2, 6, and 6 of the second and third embodiments, respectively.
Utilize Figure 4.

Next, the operation will be explained. First, in step 81, kerosene is burned in the combustor 35. In step 82, it is checked by the float switch 28 whether the remaining amount of kerosene in the oil pan 22 is such that it requires replenishment from the tank 21. If the amount requires replenishment, the amount of kerosene stored in the tank 21 as measured by the weight sensor 27 at that time is stored in the control section 37 in step 83. Next, in step 84, the timer 38 counts the time required for the kerosene from the tank 21 to reach the specified amount to fill the oil pan 22 when the fuel filter 23 is not clogged, and in step 85, combustion is started. Stop. Next, in step 86, it is checked whether the weight of kerosene in the tank 21 detected by the weight sensor 27 has decreased from the value stored in the control section 38 and has been sent into the oil pan 22, and if it has not decreased, the control is performed. Combustion filter 23 by section 37
is determined to be clogged, and in step 87, the clogging notification section 38 is made to blink to notify the user of the clogging.

[0034]

[Effect of the invention] As explained above, the first invention has the following features:
The control unit detects clogging of the fuel filter and activates the clogging alarm unit, allowing the user to know about clogging and take immediate action, improving safety and providing easy-to-use liquid fuel combustion. You can get the equipment.

As explained above, in this second invention, the control unit detects clogging of the filter using the weight sensor and the remaining amount detector, and operates the clogging notification unit, so that special equipment is not required. Since the user is notified of clogging without having to install a liquid fuel combustion device, it is possible to obtain a liquid fuel combustion device that is very easy to use for the user.

As explained above, in this third invention, the control section uses the remaining amount detector and the timer to determine whether the filter is clogged and activates the clogging alarm section, so it is not necessary to install new special equipment. Since the user is notified of clogging without the need for a liquid fuel combustion device, it is possible to obtain a liquid fuel combustion device that is very easy to use for the user.

As explained above, the fourth invention uses a weight sensor, a remaining amount detector, and a timer by the control unit to determine whether the filter is clogged and activates the clogging notification unit, so special equipment is not required. It is possible to obtain a liquid fuel combustion device that is very easy to use for the user because the user is notified of the clogging without having to provide a new one.

As explained above, the fifth invention uses a weight sensor, a remaining amount detector, and a timer by the control unit to determine whether the filter is clogged and activates the clogging notification unit, so special equipment is not required. Since the user is notified of clogging without the need to newly provide a liquid fuel combustion device, it is possible to obtain a liquid fuel combustion device that is very user-friendly for the user.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a liquid fuel combustion apparatus showing an embodiment of the first invention.

FIG. 2 is an internal configuration diagram of a liquid fuel combustion device showing an embodiment of the second invention.

FIG. 3 is a simplified block diagram showing an embodiment of the second invention.

FIG. 4 is an external view of various display sections showing an embodiment of the second invention.

FIG. 5 is a flowchart showing an embodiment of the second invention.

FIG. 6 is a block diagram showing an embodiment of the third invention.

FIG. 7 is a flowchart showing an embodiment of the third invention.

FIG. 8 is a flowchart showing an embodiment of the fourth invention.

FIG. 9 is a flowchart showing an embodiment of the fifth invention.

FIG. 10 is an internal configuration diagram of a conventional liquid fuel combustion device.

FIG. 11 is a block diagram showing a conventional liquid fuel remaining amount display section.

[Explanation of symbols]

1 Airtight tank 2 Oil level gauge window 3. Oil pan 4. Oil supply filter 5 Weight sensor 6 Actuator 7 Actuator 8 Strain plate 9 Strain sensor 10 Bottom plate 11 Combustor 12 Fuel pump 13　Blower 14 Combustion chamber 15　Blower fan 16 Outer case 17 Circuit board 18 Microcomputer board 19 Indication meter 20 Calibration switch 21 Tank 22 Oil pan 23 Fuel filter 24 Clogging notification section 25 Combustion part 26 Control section 27 Weight sensor 28 Float switch 29 Electromagnetic pump 30 Oil pipe 31　Oil level gauge 32 Combustion motor 33　Blower fan 34 Solenoid 35 Combustor 36 Flame detector 37 Control section 38 Clogging notification section 39 Timer

Claims (5)

[Claims] Claim 1: A cartridge-type tank for storing liquid fuel, an oil tray for temporarily storing the liquid fuel sent from the tank, and a fuel filter for removing impurities from the liquid fuel sent to the oil tray. , a clogging notification section that notifies the clogging of the fuel filter; a combustion section that performs combustion using the liquid fuel in the oil pan; and a clogging section that detects the clogging of the combustion filter and operates the clogging notification section. A liquid fuel combustion device comprising a control unit that controls the operation of the liquid fuel. 2. A cartridge-type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank, an oil tray for temporarily storing the liquid fuel delivered from the tank, and the oil tray. a fuel filter that removes impurities in the liquid fuel sent to the fuel tank; a remaining amount detector that detects the remaining amount of the liquid fuel in the oil pan; and a clogging notification section that notifies the fuel filter of clogging. A combustion section that performs combustion using the liquid fuel in the oil pan, and a value that allows the weight of the liquid fuel measured by the weight sensor to be sent to the oil pan when combustion suddenly stops during combustion of the liquid fuel by this combustion section. and a control section that operates the clogging notification section if the remaining amount of liquid fuel determined by the remaining amount detector is a value indicating insufficient remaining amount. 3. A cartridge-type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank, an oil tray for temporarily storing the liquid fuel delivered from the tank, and the oil tray. a fuel filter that removes impurities in the liquid fuel sent to the fuel tank; a remaining amount detector that detects the remaining amount of the liquid fuel in the oil pan; and a clogging notification section that notifies the fuel filter of clogging. a combustion section that performs combustion using the liquid fuel in the oil receiver; a timer that counts time; and a timer that counts time from the time when the tank is installed in the main body and the liquid fuel starts to be delivered to the oil receiver. If the remaining amount of liquid fuel measured by the remaining amount detector is a value indicating insufficient remaining amount after a predetermined time period required for replenishing the liquid fuel in the tank and replenishing the oil receiving tray, the above-mentioned A liquid fuel combustion device comprising a control section that operates a clogging alarm section. 4. A cartridge-type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank, an oil tray for temporarily storing the liquid fuel delivered from the tank, and the oil tray. a fuel filter that removes impurities in the liquid fuel sent to the fuel tank; a remaining amount detector that detects the remaining amount of the liquid fuel in the oil pan; and a clogging notification section that notifies the fuel filter of clogging. A combustion section that performs combustion using the liquid fuel in the oil pan, a timer that counts time, and a weight of the liquid fuel measured by the weight sensor during combustion by the combustion section is a value that can be sent to the oil pan. , and if the remaining amount of liquid fuel determined by the remaining amount detector is a value indicating insufficient remaining amount, from that point on, the timer starts counting time, and the liquid fuel in the tank is replenished into the oil pan. and a control unit that operates the clogging notification unit if the remaining amount of liquid fuel determined by the remaining amount detector is a value indicating insufficient remaining amount after a predetermined time period has elapsed. 5. A cartridge type tank for storing liquid fuel, a weight sensor for detecting the weight of the liquid fuel in the tank, an oil tray for temporarily storing the liquid fuel delivered from the tank, and the oil tray. a fuel filter that removes impurities in the liquid fuel sent to the fuel tank; a remaining amount detector that detects the remaining amount of the liquid fuel in the oil pan; and a clogging notification section that notifies the fuel filter of clogging. A combustion section that performs combustion using the liquid fuel in the oil pan, a timer that counts time, and a value indicating that the remaining amount of liquid fuel is insufficient by the remaining amount detector as determined by the remaining amount detector during combustion by the combustion section. The timer starts counting time from the time it is detected, and the combustion by the combustion section is stopped after a predetermined time period required for replenishing the liquid fuel in the tank into the oil pan. and a control unit that operates the clogging notification unit if the weight of the liquid fuel measured by the weight sensor does not indicate a decrease.