JP2020153582A - Vaporization type combustion device - Google Patents

Abstract

To provide a vaporization type combustion device capable of preventing residual oil amount display from being erroneously increased.SOLUTION: A vaporization type combustion device includes: a body 1; a combustion section 2; an oil supply tank 26; oil supply tank weight detection means 34; a display 21; and a control device 3. The vaporization type combustion device displays residual oil amount on the display 21 on the basis of an output value D of the oil supply tank weight detection means 34. The control device 3 displays residual oil amount on the basis of the output value D and stores the output value D as a storage value D1 when the output value D is reduced, and displays residual oil amount on the basis of the storage value D1 when the output value D is increased. Therefore, a failure in which display of residual oil amount is increased although oil is not supplied can be prevented when the volume of air in the oil supply tank 26 contracts accompanying lowering of an indoor temperature and a part of liquid fuel in an oil pan 10 returns to the inside of the oil supply tank 26 by the contraction.SELECTED DRAWING: Figure 5

Description

The present invention relates to a vaporization type combustion device that vaporizes and burns fuel oil.

Conventionally, in this type of thing, when the amount of fuel oil drops below a predetermined amount, an alarm is issued and the combustion of the combustion part is automatically stopped. (See, for example, Patent Document 1)

In addition, the amount of residual oil in the removable refueling tank is displayed on the main body of the device so that refueling can be performed before the amount of fuel oil drops below a predetermined amount and the combustion of the combustion part automatically stops. Some of them measure and display the weight of the refueling tank stored in the device with a weight sensor, and use the weight sensor to measure the weight of the refueling tank stored in the device and display the amount of residual oil in the refueling tank. When the amount of liquid fuel in the refueling tank is the weight specified by the kerosene amount display means, in order to be able to provide appropriate information corresponding to the weight, in the manufacturing process stage of the heater in advance. , The weight detection device reads the load when the refueling tank is fully filled with liquid fuel, and the signal from the weight detection device is stored in the storage device via the adjustment setting device for actual heating. When the machine was used, some of them output the information calculated by the central control device to the kerosene amount display means based on the data stored in the storage device. (See, for example, Patent Document 2)

In addition, the weight of the refueling tank itself is stored in advance, and the sensor signal from the weight sensor is input to correct the remaining amount signal corresponding to the remaining amount of liquid fuel based on the weight of the stored refueling tank itself. there were. (See, for example, Patent Document 3)

Utility Model Registration No. 2588169 Gazette Japanese Unexamined Patent Publication No. 11-94247 Japanese Unexamined Patent Publication No. 64-84016

By the way, in this conventional one, for example, when the liquid fuel in the refueling tank becomes low and light, the body hits the main body of the device and the refueling tank moves, or the heating operation is stopped before going to bed at night to enter the room. The volume of air in the refueling tank contracts as the temperature of the oil decreases, and as a result, when part of the liquid fuel in the oil pan returns to the refueling tank, the amount of residual oil in the main body of the device does not change. However, the display of the residual oil amount of the kerosene amount display means may increase.

In order to solve the above problems, claim 1 includes a main body, a combustion unit, a refueling tank, a refueling tank weight detecting means, a display unit, and a control device, and the refueling tank weight detecting means. In the vaporization type combustion device that displays the amount of residual oil on the display unit based on the output value D of the above, the control device determines the amount of residual oil based on the output value D when the output value D decreases. Is displayed, the output value D is stored as a storage value D1, and when the output value D increases, the amount of residual oil based on the stored value D1 is displayed.

Further, in the second aspect, in the first aspect, the timekeeping unit is provided, and when the output value D increases, the difference between the output value D and the stored value D1 is a predetermined value A. At the above time, the time counting by the time measuring unit is started, the amount of residual oil is displayed based on the output value D until the time measuring of the time measuring unit elapses the predetermined time T2, and when the predetermined time T2 elapses, the said The output value D is stored as the storage value D1.

Further, in claim 3, according to claim 1 or 2, the refueling tank detecting means for detecting whether or not the refueling tank is inside the main body is provided, and the control device is the refueling tank detecting means. Displays the amount of residual oil based on the output value D until the predetermined time T1 elapses after detecting that the refueling tank has changed from none to the presence in the main body, and after the predetermined time T1 elapses. Is to store the output value D as a storage value D1.

According to claim 1 of the present invention, when the output value D decreases, the control device displays the amount of residual oil based on the output value D and stores the output value D as a storage value D1. However, when the output value D increases, the residual oil amount based on the stored value D1 is displayed, so that it is possible to prevent a problem that the display of the residual oil amount increases even though the oil is not refueled.

Further, according to claim 2, when the output value D increases by a predetermined value A or more, the control device increases the output value D from the detection of the increase by the predetermined value A or more until the predetermined time T2 elapses. The amount of residual oil is displayed based on the output value D, and after the predetermined time T2 has elapsed, the output value D is stored as the storage value D1, so that the refueling tank is lifted a little and immediately returned to its original state. It is possible to prevent the problem that the display of the residual oil amount is displayed as zero or a small amount.

Further, according to claim 3, the control device outputs the output until a predetermined time T1 elapses after the refueling tank detecting means detects that the refueling tank is present in the main body from nothing. The amount of residual oil is displayed based on the value D, and after the predetermined time T1 has elapsed, the output value D is stored as the stored value D1 after the predetermined time T1 has elapsed. Therefore, the refueled refueling tank is stored in the main body. It is possible to prevent the problem that the display of the residual oil amount does not increase even though it is returned.

The perspective view which shows the vaporization type combustion apparatus which attached one Example of this invention. Sectional view of the main part. The main part block diagram. Block diagram of the control circuit. The same flowchart.

Next, one embodiment of the invention according to the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a main body constituting a vaporization type combustion device installed indoors, a combustion unit 2 composed of a vaporization burner inside the main body 1, a control device 3 mainly composed of a microcomputer for controlling the operation of the main body 1. It is equipped with a convection blower 4 with an opening on the back of the main body 1, a hot air outlet 5 on the front of the main body 1, and an operation unit 6 on the upper front side of the main body 1, and uses the combustion exhaust gas from the combustion unit 2 for convection. Heating is performed by blowing air into the room from the warm air outlet 5 by the blower 4.

The combustion unit 2 is configured to include a vaporization unit 9 having a heating heater 8 in the lower part of a burner head 7 having a plurality of flame holes, and the oil pan 10 is inside the vaporization unit 9 heated by the heating heater 8. Liquid fuel is supplied through the oil supply nozzle 12 by driving the positive displacement electromagnetic pump 11, and the mixed gas of the vaporized gas vaporized by the liquid fuel and the combustion air supplied from the combustion blower 13 through the air passage 14 is used as described above. It is burned in the flame holes of the burner head 7, and during combustion, heat is recovered from the flame by an annular heat recovery ring 15 provided at the upper end of the vaporization unit 9 so as to face the plurality of flame holes, and the heating heater 8 is energized. It is reduced and has a wide turndown ratio and quiet vaporization combustion.

The operation unit 6 includes an operation switch 16 for commanding start / stop of operation, a room temperature setting means 19 composed of a room temperature rise switch 17 and a room temperature drop switch 18, and a room temperature setting means 19 for setting a desired room temperature, and an amount of residual oil. Various operation switches such as a display switch 20, a timer switch, and an extension switch, and a display unit 21 for displaying the time, set room temperature, and residual oil amount are provided.

Reference numeral 22 denotes a vaporization temperature sensor that detects the temperature of the vaporization unit 9 heated by the heater 8, and the control device 3 turns off the heater 8 when the detection temperature of the vaporization temperature sensor 22 reaches a predetermined upper limit temperature. Further, when the predetermined lower limit temperature is reached, the heating heater 8 is turned on to keep the temperature of the vaporizing unit 9 within a temperature range in which the liquid fuel can be satisfactorily vaporized.

Further, the control device 3 monitors the detected temperature of the vaporization temperature sensor 22 according to the operation command of the operation switch 16, and heats the vaporization unit 9 to a temperature at which the liquid fuel can be vaporized by the heating heater 8. When the temperature of 9 is raised to a temperature suitable for combustion, the electromagnetic pump 11 and the combustion blower 13 are started to be driven, the mixed gas is ignited by the ignition device 23 to start combustion, and the convection blower 4 on the back surface of the main body 1 is started. The electromagnetic pump 11 and the combustion blower 13 are controlled to change the combustion thermal power according to the deviation between the detected room temperature of the room temperature sensor 24 provided in the vicinity of the room temperature sensor 24 and the set room temperature set by the room temperature setting means 19. The room temperature is controlled so as to be set by the room temperature setting means 19.

Reference numeral 25 denotes a refueling tank detecting means, which detects whether or not the refueling tank 26 is inside the main body 1, and when the refueling tank 26 is inserted into the main body 1, it abuts on the side surface of the refueling tank 26 and closes the refueling tank 26. It is composed of an open / close switch that opens when it is pulled out from the main body 1, and when the tank detecting means 25 detects that the refueling tank 26 is pulled out from the main body 1 during operation, the control device 3 stops the operation.

When the refueling tank 26 is inserted into the main body 1, the mouthpiece 27 at the tip of the refueling tank 26 is inserted into the tank insertion port 28 formed in the oil pan 10.
An oil filter 29 for filtering impurities such as dust mixed in the fuel oil is arranged in the tank insertion port 28, and the base 27 of the oil supply tank 26 is inserted into the oil filter 29 to insert the base 27 of the oil supply tank 26 into the oil pan 10. The refueling tank 26 is mounted.

A pin 30 is formed so as to protrude from the center of the oil filter 29, and when the oil tank 26 is attached, the pin 30 opens the fuel discharge port 31 provided in the base 27 of the oil tank 26. The fuel oil in the oil supply tank 26 is supplied into the oil pan 10 via the oil filter 29.

When the liquid level in the oil pan 10 rises and reaches the fuel discharge port 31, the supply of fuel oil from the oil supply tank 26 is stopped. By repeating this, a constant amount of liquid is always supplied to the oil pan 10. It is designed to store fuel.

Reference numeral 32 denotes an oil amount detecting means including a float switch, which detects that the amount of fuel in the oil pan 10 for temporarily storing the fuel from the refueling tank 26 has decreased to a predetermined amount or less.

Reference numeral 33 denotes a timer means for counting a predetermined time, which starts timing by inputting a timing start signal from the control device 3 and ends timing by inputting a timing end signal. Is reached, or when the predetermined time T2 is reached from the start of timekeeping, the timekeeping signal is output to the control device 3.

Reference numeral 34 denotes a refueling tank weight detecting means, which is provided around the tank insertion port 28 of the refueling pan 10. When the refueling tank 26 is inserted into the main body 1 of the fan heater, the mouthpiece 27 at the tip of the refueling tank 26 becomes the cap 27 of the oil pan 10. Although it is located at the tank insertion port 28, at this time, the refueling tank 26 comes into contact with the refueling tank weight detecting means 34, and the weight of the refueling tank 26 is applied to the refueling tank weight detecting means 34, depending on the weight applied. The output value of the refueling tank weight detecting means 34 changes.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG.
First, the control device 3 determines whether or not the refueling tank detecting means 25 has detected that there is no refueling tank 26 in the main body 1 of the fan heater (S1), and the refueling tank detecting means 25 is the main body of the fan heater. When it is in the state of detecting that there is no refueling tank 26 in 1, it is next determined whether the refueling tank detecting means 25 has changed to the state of detecting that there is a refueling tank 26 in the main body 1 of the fan heater ( S2).

In (S2), if the refueling tank detecting means 25 does not change to the state of detecting that the refueling tank 26 is in the main body 1 of the fan heater, the process returns to (S1), and in (S2), the inside of the main body 1 of the fan heater is reached. When the state changes to the state where it is detected that the refueling tank 26 is present, it is determined that the refueling tank 26 has been refueled and returned to the main body 1, and the control device 3 outputs a timing start signal to the timer means 33. The timer means 33 starts timing (S3).

Then, while the timer means 33 does not reach the predetermined time T1 (S4), the control device 3 displays the amount of residual oil in the refueling tank on the display unit 21 based on the current output value D of the refueling tank weight detecting means 34 (S4). It is to be displayed (S5).
Then, when the time counting of the timer means 33 reaches the predetermined time T1 (S4), the control device 3 ends the time counting of the timer means 33 (S6), and outputs the stored value D1 of the refueling tank weight detecting means 34. It updates to D (S7) and returns to (S1).

As a result, when the refueling tank 26 is taken out from the inside of the main body 1 of the fan heater to refuel the refueling tank 26, the output value D of the refueling tank weight detecting means 34 decreases, and then the refueled refueling tank 26 is used as a fan heater. When returned to the main body 1, the output value D of the refueling tank weight detecting means 34 increases, but the amount of residual oil in the refueling tank is displayed on the display unit 21 based on the increased output value D of the refueling tank weight detecting means 34. Therefore, for example, if the refueling tank 26 that has been fully refueled is returned to the main body 1, the display unit 21 can display the full tank.

Further, the control device 3 detects in (S1) that the refueling tank detecting means 25 does not detect that there is no refueling tank 26 in the main body 1 of the fan heater, that is, that there is a refueling tank 26 in the main body 1. At that time, it is determined whether the output value D of the refueling tank weight detecting means 34 is equal to or less than the stored value D1 of the refueling tank weight detecting means 34, that is, whether the residual oil amount is the same or decreased (S8). When the output value D is equal to or less than the stored value D1 in S8), the amount of residual oil in the refueling tank is displayed on the display unit 21 based on the current output value D of the refueling tank weight detecting means 34 (S9), and the refueling tank weight is detected. The storage value D1 of the means 34 is updated to the output value D (S10) and returned to (S1).

Further, when the output value D is larger than the stored value D1 in the above (S8), the control device 3 compares whether the output value D is larger than the stored value D1 by a predetermined value A or more (S11), and the output value D. Is larger than the storage value D1 by a predetermined value A or more, a time counting start signal is output to the timer means 33, and the timer means 33 starts timing (S12).

Then, while the timer means 33 does not reach the predetermined time T2 (S13), the control device 3 displays the amount of residual oil in the refueling tank on the display unit 21 based on the current output value D of the refueling tank weight detecting means 34 (S13). It is to be displayed (S14).

Then, when the time counting of the timer means 33 reaches the predetermined time T2 (S13), the control device 3 ends the time counting of the timer means 33 (S15), and outputs the stored value D1 of the refueling tank weight detecting means 34. It is updated to D (S16) and returned to (S1).

When the output value D is not larger than the stored value D1 by a predetermined value A or more in (S11), the amount of residual oil in the refueling tank is displayed on the display unit 21 by the stored value D1 (S17), (S1). It returns to.

Here, the predetermined value A is a large value corresponding to, for example, 1 kilogram of the weight of the empty refueling tank 26 when converted by weight, and is an increase that occurs when the refueling tank 26 is lifted a little and immediately returned to its original position. It is the amount, and the volume of air in the refueling tank 26 contracts as the refueling tank weight detecting means 34 erroneously detects and the temperature in the room drops, so that a part of the liquid fuel in the oil pan 10 is refueled. Since the amount of increase when returning to the tank 26 is, for example, about 300 grams at most, when the output value D increases by this predetermined value A or more, it is judged that the refueling tank 26 is lifted a little and immediately returned to the original value. It can be done.

As a result, when the refueling tank 26 is slightly lifted and immediately returned to its original position, the output value D is larger than the stored value D1 by a predetermined value A or more, and therefore, based on the current output value D of the refueling tank weight detecting means 34. The amount of residual oil in the refueling tank can be displayed on the display unit 21, and the amount of residual oil in the refueling tank can be displayed on the display unit 21 according to the weight of the returned refueling tank 26.

In addition, the volume of air in the refueling tank 26 contracts due to erroneous detection of the refueling tank weight detecting means 34 and the temperature in the room drops, so that a part of the liquid fuel in the oil pan 10 is refueled tank 26. When the oil returns to the inside, the output value D is not larger than the stored value D1 by a predetermined value A or more. Therefore, the amount of residual oil in the refueling tank is displayed on the display unit 21 by the stored value D1, and the oil is not refueled accordingly. It is possible to prevent the problem that the display of the residual oil amount increases.

As described above, when the output value D of the refueling tank weight detecting means 34 decreases, the amount of residual oil in the refueling tank based on the output value D is displayed on the display unit 21, and the output value of the refueling tank weight detecting means 34 is displayed. When D increases, the amount of residual oil is displayed based on the stored value D1, so that it is possible to prevent a problem that the display of the amount of residual oil increases even though the oil is not refueled.

When the output value D of the refueling tank weight detecting means 34 increases and the increase amount is equal to or greater than the predetermined value A, it is based on the current output value D of the refueling tank weight detecting means 34 until the predetermined time T2 elapses. The amount of residual oil in the refueling tank is displayed on the display unit 21, and when the predetermined time T2 elapses, the output value D is stored as the stored value D1. The amount of residual oil in the refueling tank can be displayed on the display unit 21 according to the weight of the refueling tank 26.

Further, the amount of residual oil is displayed based on the output value D until a predetermined time T1 elapses after the refueling tank detecting means 25 detects that the refueling tank 26 is present in the main body 1 from none. Then, when the predetermined time T1 elapses, the output value D is stored as the stored value D1. Therefore, when the refueling tank 26 is taken out from the main body 1 and refueled and then returned to the main body 1, the refueled refueling tank 26 is stored in the main body. It is possible to prevent a problem that the display of the residual oil amount does not increase even though the value is returned to 1.

1 Main body 2 Combustion unit 3 Control device 21 Display unit 26 Refueling tank 33 Timer means 34 Refueling tank weight detecting means

Claims (3)

A main body, a combustion unit, a refueling tank, a refueling tank weight detecting means, a display unit, and a control device are provided, and the amount of residual oil is displayed on the display unit based on the output value D of the refueling tank weight detecting means. In the vaporization type combustion device, when the output value D decreases, the control device displays the amount of residual oil based on the output value D and stores the output value D as a storage value D1. , A vaporization type combustion apparatus characterized in that when the output value D increases, the amount of residual oil based on the stored value D1 is displayed. The control device includes a time measuring unit, and when the output value D increases, when the difference between the output value D and the stored value D1 is equal to or greater than a predetermined value A, the control device starts time counting by the time measuring unit. The amount of residual oil is displayed based on the output value D until the time counting of the above time elapses after the predetermined time T2, and when the predetermined time T2 elapses, the output value D is stored as the storage value D1. The vaporization type combustion apparatus according to claim 1. A refueling tank detecting means for detecting whether or not the refueling tank is inside the main body is provided, and the control device detects that the refueling tank detecting means has been removed from the inside of the main body. The claim is characterized in that the amount of residual oil is displayed based on the output value D until the predetermined time T1 elapses, and after the predetermined time T1 elapses, the output value D is stored as the storage value D1. Item 1. The vaporization type combustion apparatus according to Item 1.

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