JPH04151425A - Method and apparatus for controlling temperature of evaporator of room heater - Google Patents

Abstract

PURPOSE:To simplify a control by sequentially altering burning amount of kerosine by a small amount at each one unit without altering it at once if the burning amount of the kerosine is altered. CONSTITUTION:An ambient temperature is compared with a target temperature, and a necessary burning amount is decided. Then, the decided amount is compared with a present burning amount, and if they coincide, there is no increase/ decrease in the burning amount, and hence it is ended as it is. When the burning amount is increased, burning amount of kerosine is increased by one unit. If the amount increased by one unit is not yet insufficient as compared with a target burning amount, it is further increased. This is repeated. When both coincide, it is ended. If the amount is reduced, the burning amount of the kerosine is decreased by one unit. If the amount decreased by one unit is still excessive as compared with the target amount, it is further decreased. This is repeated. When both coincide, it is ended.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method and device for controlling the temperature of a vaporizer of a heating machine, and in particular, to control the temperature of the vaporizer before the amount of kerosene burned reaches a target value. The present invention relates to a temperature control method and apparatus for a vaporizer of a heating machine, in which the vaporizer is controlled so that the temperature corresponds to a target value.

<Conventional Technology> In a kerosene fan heater, room temperature is controlled by comparing the room temperature with the temperature set for the appliance (hereinafter referred to as target temperature) and changing the amount of kerosene burned.

In this case, it was necessary to control the temperature of the vaporizer at a temperature corresponding to the amount of kerosene burned.

Therefore, in the past, there was no particular problem if the amount of kerosene burned was not reduced, but when increasing the amount of kerosene burned, it was necessary to raise the temperature of the vaporizer before increasing the amount of kerosene burned. This is because if you suddenly increase the amount of kerosene burned when the temperature corresponds to a state where the amount of kerosene burned is low (when the temperature of the vaporizer is low), the flame condition will worsen and soot and carbon monoxide will be generated. Because it does.

The third part shows a flowchart of conventional control, and FIG. 4 shows a configuration diagram of a conventional control device.

In FIG. 4, a room temperature measuring device 10 and a room temperature target setting device 20 are shown.
The measurement results are given to the combustion amount setter 30, which sets the combustion amount based on the difference between these two measured values and gives this to the carburetor temperature controller 60.

On the other hand, the temperature of the vaporizer is actually measured by the vaporizer temperature measuring device 50, and the result is given to the vaporizer temperature controller 60.

The carburetor temperature controller 60 sends the result to the combustion amount change indicator 4.
0 to change the combustion amount.

That is, according to FIG. 3, the room temperature and the target room temperature are compared,
If there is a difference between them, it is determined whether or not to reduce the combustion amount, and in the case of a reduction, the step becomes END.

However, if it is necessary to increase the amount of combustion, the amount of kerosene is increased by making a distinction based on the amount of combustion, and in either case, steps are taken to ensure that the temperature of the vaporizer reaches the appropriate temperature. I had a method.

<Problem to be solved by the invention> When changing the combustion amount of kerosene as described above, first distinguish whether the combustion amount increases or decreases, and if it increases, actually increase it. Previously, it was necessary to constantly check whether the temperature of the carburetor had reached the temperature corresponding to the target combustion amount, which made carburetor control complicated.

The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a temperature control method and device for a vaporizer of a heater that does not require complicated control.

Means for Solving the Problems> Method B of controlling the vaporizer temperature according to the present invention determines the target combustion amount based on the result of comparing the room temperature and the room temperature target temperature,
If the target combustion amount does not match the current combustion amount, increase the combustion amount by 1 unit to match the target combustion amount, and decrease the combustion amount by 1 unit. The feature is that the combustion amount is reduced to match the target combustion amount.

Further, the vaporizer temperature control device according to the present invention includes a room temperature measuring device, a room temperature target setting device, a combustion amount setting device that sets the combustion amount based on the difference between the two setting devices, and a combustion amount setting device that sets the combustion amount based on the difference between the two setting devices. It is equipped with a combustion amount change indicator that instructs to change the combustion amount one unit at a time, and a vaporizer temperature measuring device that separately measures the temperature of the vaporizer, and a vaporizer temperature measuring device that controls the vaporizer temperature. It has a vaporizer temperature controller.

<Operation> When changing the amount of kerosene burned, the amount is changed one unit at a time without changing to -degrees. This eliminates the need to provide temperature information to the vaporizer temperature controller, making control easier.

<Example> Hereinafter, an example according to the present invention will be described with reference to the drawings. FIG. 1 is a flow chart of the present invention, and FIG. 2 is an apparatus according to the present invention. The method of the present invention will be explained according to FIG.

■First, compare the room temperature with the target temperature and determine the required combustion amount.

■Next, compare the combustion amount determined in ■ with the current combustion amount,
If these match, there is no increase or decrease in the amount of combustion, so END is performed.

■When increasing the amount of combustion, increase the amount of kerosene burned by one unit.

■Compare the combustion amount increased by 11 units with the target combustion amount, and if it is still insufficient, increase it by one more unit.

Repeat this. And if both match, E? JI)
do.

■' When reducing the amount of combustion, reduce the amount of kerosene burned by one unit.

■' If the combustion amount reduced by 1 unit is still larger than the target combustion amount, it is further reduced by 1 unit.

Repeat this. When the two match, the process ends.

Therefore, according to the present invention, unlike the conventional method, there is no need to constantly check the temperature of the vaporizer, which is simple.

In FIG. 2, a room temperature measuring device 10 and a room temperature target setting device 20 are shown.
The measurement results are given to the combustion amount setter 30, which sets the combustion amount based on the difference between these two measured values, and gives this to the combustion amount change indicator 40.

On the other hand, apart from the above-mentioned route, the temperature of the vaporizer is actually measured by the vaporizer temperature measuring device 50, and the result is given to the vaporizer temperature controller 60. According to this device, it is not necessary to provide the measurement results of the combustion amount setting device 30 to the vaporizer temperature controller.

<Effects of the Invention> According to the control method and apparatus of the present invention, when changing the combustion amount of kerosene, a method is adopted in which the amount is increased or decreased one unit at a time, without making a large change at a time.

Therefore, before the amount of kerosene burned reaches the target amount,
Since the temperature of the vaporizer corresponds to the target value, there is no need to check the temperature of the vaporizer, and the control is simpler than in conventional methods and devices.

[Brief explanation of drawings]

FIG. 1 is a flowchart of the present invention, the second circle is a block diagram of a control device according to the present invention, FIG. 3 is a flowchart of conventional control, and FIG. 4 is a block diagram of a conventional control device. 10... Room temperature measuring device 20... Room temperature target setting device 30... Combustion amount setting device 40... Combustion amount change indicator 50... Carburizer temperature measuring device 60...・Applicant for utility model registration for vaporizer temperature controller Takaharu Ohnishi, agent for Sharp Corporation, patent attorney

Claims (2)

[Claims] (1) Determine the target combustion amount based on the result of comparing the room temperature and the room temperature target temperature, and if the target combustion amount does not match the current combustion amount, increase the combustion amount by one unit. A method for controlling the temperature of a vaporizer of a heater, characterized in that the temperature is increased by one unit to match the target combustion amount, and when the combustion amount is decreased, it is decreased by one unit to match the target combustion amount. . (2) A room temperature measuring device, a room temperature target setting device, a combustion amount setting device that sets the combustion amount based on the difference between the two setting devices, and an instruction to change the combustion amount by one unit based on the results of the combustion amount setting device. It is equipped with a combustion amount change indicator, a vaporizer temperature measuring device that separately measures the temperature of the vaporizer, and a vaporizer temperature controller that controls the vaporizer temperature using the vaporizer temperature measuring device. A temperature control device for a vaporizer of a heater, characterized in that: