JPH07103993B2 - Oil combustor controller - Google Patents

Description

TECHNICAL FIELD The present invention is intended to improve the vaporization response of an oil combustor using an oil fuel such as petroleum and to reduce power consumption.

2. Description of the Related Art Conventionally, a control device of this type has a heat exchanger 1, a burner 2 for heating the heat exchanger 1, and a vaporizer for sending vaporized oil to the burner 2, as shown in FIG. Section 3, a heater 4 incorporated in the vaporization section 3 for vaporizing oil, and a combustion amount adjusting means for sending fuel oil to the vaporization section 3 according to the combustion amount (for example,
(Electromagnetic pump, etc.) 5, a running water sensor 7 as a usage state detecting means for detecting running water due to opening and closing of the calan 6, a hot water temperature setting means 8 for setting a hot water temperature, and a hot water temperature detecting means for detecting a hot water temperature. A pump for pumping oil from an external tank 12 to a thermistor 9, a combustion amount control means 10 for outputting a combustion amount control signal according to a deviation between a set temperature and a hot water temperature to the combustion amount control means 5, and an oil tank 11 inside the equipment. It was composed of 13 and.

Therefore, in a state where the heater is raised to a predetermined set temperature by an operation switch (not shown) or the like, the open state of the calan 6 is detected by the use state detecting means 7 and the combustion amount adjusting means 5 is used to vaporize the vaporizing part 3 The combustion supply to the furnace was adjusted according to the deviation between the set temperature and the tap water temperature.

However, in the above-described configuration, in order to supply hot water at a desired set temperature in a short time from the opening of the hot water supply, that is, the opening of the hot water, the heater of the vaporization unit is always kept at a predetermined vaporizable temperature. Need to keep. Therefore, since the heater of the vaporization section is normally energized for almost all day from the start of use in the morning, the power consumption becomes extremely high, which is uneconomical.

The present invention solves such a conventional problem by constantly monitoring the frequency of use of the oil combustor, increasing or decreasing the set temperature of the heater of the vaporization unit according to the duration of use or non-use, and utilizing the oil combustor. An object of the present invention is to provide an energy-saving and highly convenient oil combustor by automatically performing heater energization control that matches actual conditions.

Means for Solving the Problems In order to solve the above problems, the control device for an oil combustor according to the present invention includes use condition detection means for detecting use or non-use of the device, and a use determination signal from the use condition detection means. And a comparison determination means that compares the use determination signal duration from the timer means with a predetermined use determination continuation reference time and outputs a comparison determination signal. In response to the comparison determination signal from the determination means, increase or decrease the set temperature of the heater of the vaporization means for vaporizing the oil,
And combustion control means for controlling combustion of a burner that burns vaporized oil.

With the above-described configuration, the present invention can constantly detect the usage state of the oil combustor by the usage status detection means, and constantly monitor the usage frequency, operation and non-operation duration of the oil combustor by the timer means and the comparison determination means. , It is possible to lower the set temperature of the vaporization heater with the passage of non-use time or change the set temperature of the vaporization heater according to the level of frequency of use, reducing the heater power consumption and reducing the oil combustor By controlling the temperature of the vaporizing means according to the actual conditions of use, it is possible to improve the durability and extend the life of the vaporizing means. The same members as those in FIG. 3 of the conventional example are designated by the same reference numerals.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a control block diagram of the control device of the present invention.
13 inputs the use determination signal (pulse signal according to the flow rate, etc.) sent from the use state detecting means (flow sensor) 7,
The timer means for measuring the duration time during use and when not in use, 14 uses the duration of the use determination signal from the timer means 13 (for example, non-use elapsed time, hereinafter referred to as non-use elapsed time) for a predetermined use. Comparison determination means for comparing with a determination continuation reference time (hereinafter referred to as non-use progress determination reference time, hereinafter referred to as non-use progress determination reference time) and outputting a comparison determination signal such as exceeding non-use progress determination reference time, 15 , A stop signal (stop water) from the water flow sensor 7 is input to compare and determine means.
Combustion for outputting a control signal corresponding to the reference time for non-use progress judgment to 14 and inputting a comparison judgment signal as a comparison judgment result, and controlling increase / decrease in set temperature of the heater 4 of the vaporization means 3 and combustion of the burner 2. It is a control means.

In the above configuration, the operation of the control device for the oil combustor will be described with reference to the flow chart of FIG. 2. The water flow sensor 7 sends a stop signal to the timer means 13 and the combustion control means 15 as a non-use determination signal.

The combustion control means 15 determines whether or not the non-use progress determination reference signal has been output. If not output, the process proceeds to.

The combustion control means 15 outputs a timer measurement start signal to the timer means 13 and a non-use progress determination reference signal to the comparison determination means 14, respectively.

The combustion control means 15 determines the presence or absence of the comparison determination signal by the comparison determination means. That is, it is determined whether or not the non-use progress determination reference time has been exceeded.

When the non-use progress determination reference time is exceeded in step 1, it is determined whether the set temperature of the heater 4 of the vaporizing means 3 is the lower limit value (ambient temperature, that is, heater energization may be OFF).

If the heater set temperature> lower limit value, the set temperature of the heater 3 is lowered by one level (only a predetermined temperature). Further, the non-use judgment reference signal output to the comparison judgment means 14 is reset.

When the running state of the device is detected by the water flow sensor 7, the combustion control means 15 outputs a heater energization control signal so that the heater 3 reaches the set temperature during use.

Therefore, the set temperature of the heater 3 is lowered at every predetermined elapsed time from the time when the use is stopped without performing a special operation. That is, the vaporization stable maintaining temperature is always maintained in a time zone of high usage frequency, and if the usage frequency is low, the vaporization heater energization amount is automatically reduced, and low power consumption operation is performed.

Further, the change of the set temperature of the heater 3 is not limited to the above embodiment, and for example, the tar durability of the vaporizing means is improved by rapidly raising the set temperature of the heater immediately after starting and stopping the use. Applications such as planning are possible.

Effects of the Invention As described above, according to the control device for an oil combustor of the present invention, the following effects are obtained.

(1) It is possible to control the temperature of the heater of the vaporizing means according to the frequency of use of the oil combustor, and a gradual reduction in the amount of energized power from the stop of use can be automatically obtained.

(2) The durability of the oil combustor can be improved and the life of the oil combustor can be extended by controlling the heater temperature rise of the vaporizer around the time when the oil combustor is used and stopped.

[Brief description of drawings]

FIG. 1 is a control block diagram of a control device for an oil combustor in an embodiment of the present invention, FIG. 2 is a flow chart for explaining the operation of the control block, and FIG. 3 is a control block diagram of a conventional oil combustor. . 2 ... Burner, 3 ... Vaporizing means, 4 ... Heater, 7 ...
Usage state detecting means, 13 ... Timer means, 14 ... Comparison judging means, 15 ... Combustion control means.

Claims (1)

[Claims] 1. A use state detecting means for detecting use or non-use of a device and outputting a use determination signal, and a timer for inputting a use determination signal from the use state detecting means and measuring a use determination signal duration time. Means, comparing and comparing the use determination signal duration from the timer means with a predetermined use determination continuation reference time, comparing and determining means for outputting a comparison determination signal, vaporizing means for vaporizing oil by a heater, and A burner that burns vaporized oil vaporized by the vaporization means,
A control device for an oil combustor, comprising: combustion control means for increasing or decreasing a set temperature of a heater of the vaporization means and controlling combustion of a burner according to a comparison determination signal from the comparison determination means.