JP3848042B2 - Vaporization type burner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vaporization type combustion appliance such as a vaporization type petroleum water heater or a vaporization type oil heater.
[0002]
[Prior art]
Conventionally, in a vaporization type combustion appliance that heats the vaporization heater by controlling the energization of the vaporization heater so that the temperature of the vaporizer equipped with this type of vaporization heater is maintained at a predetermined temperature at which the fuel oil can be vaporized. When the preheating standby switch is turned on in the oil heater, even when the operation is stopped, the vaporization heater is energized to start preheating the vaporizer and wait, even when the appliance is not in use while the user is out There was one that preheated the carburetor and started combustion as soon as the operation switch was turned on when returning. (For example, Japanese Patent Publication No. 7-109302)
[0003]
Similarly, in order to be able to start combustion immediately after the user returns home, the vaporizer type oil water heater starts preheating of the vaporizer at a time set in advance by a preheating reservation timer, and after a certain time from the start of preheating. There was something that stopped preheating. (For example, JP-A-9-318047)
[0004]
[Problems to be solved by the invention]
However, with this conventional device, once the preheat standby switch is turned on or the preheat reservation timer is set, even if there is no possibility of using the combustion appliance when the person is out, etc. Since the vaporizer is kept at a predetermined temperature at which predetermined fuel oil can be vaporized, a lot of wasted power is consumed.
[0005]
[Means for Solving the Problems]
The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, in claim 1, the configuration thereof is specifically a vaporization heater and vaporizer for vaporizing fuel, a vaporization temperature sensor for detecting the temperature of the vaporizer, Preheating control means for preheating the vaporizer to a first predetermined temperature range in which fuel oil can be vaporized by performing energization control of the vaporization heater based on the output of the vaporization temperature sensor, and wired or wirelessly connected to the combustion appliance body In a vaporization-type combustion appliance having a remote controller, a presence / absence detection sensor for detecting the presence / absence of a person is provided in the remote controller, and the presence / absence determination of a person is determined by receiving an output of the person presence / absence detection sensor The preheating temperature is changed to a second predetermined temperature range lower than the first predetermined temperature range by the absence determination of the means and the human presence determination means, and the preheating temperature is changed to the second predetermined temperature range by the human presence determination. Or And a preheating temperature changing means for returning to the first predetermined temperature range.
[0006]
Further, in claim 2, particularly, the configuration includes a vaporization heater and vaporizer for vaporizing fuel, a vaporization temperature sensor for detecting the temperature of the vaporizer, and energization of the vaporization heater based on an output of the vaporization temperature sensor. A person for detecting the presence or absence of a person in the combustion appliance body in a vaporization type combustion appliance having preheating control means for controlling and preheating the vaporizer to a first predetermined temperature range in which fuel oil can be vaporized A presence / absence detection sensor is provided, and the presence / absence determination means for determining the presence / absence of a person by receiving the output of the presence / absence detection sensor, and the preheating temperature is lower than the first predetermined temperature range by the absence determination of the person presence / absence determination means And a preheating temperature changing means for changing the preheating temperature from the second predetermined temperature range to the first predetermined temperature range based on the presence determination.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, when the preheating control means 10 preheats the vaporizer 9 to the first predetermined temperature range in which the fuel oil can be vaporized, the presence / absence detection sensor 22 provided in the remote controller 6 is provided. When a certain time elapses without detecting a person and the presence / absence determination means 23 outputs an absence determination, the preheating temperature controlled by the preheating temperature changing means 24 by the preheating control means 10 is more than the first predetermined temperature range. Since the temperature is changed to a low second predetermined temperature range, power consumption when no one is present can be reduced, and after the preheating temperature is changed, the presence / absence detection sensor detects the person and the presence / absence determination means 23 is present. When the determination signal is output, the preheating temperature changing means 24 returns the preheating temperature to the first predetermined temperature range so that combustion can be performed immediately in response to the combustion request.
[0008]
According to the second aspect of the present invention, when the preheating control means 10 preheats the vaporizer 9 to the first predetermined temperature range in which the fuel oil can be vaporized, the presence / absence detection provided in the combustion appliance body 25 is detected. When the sensor 22 does not detect a person and a certain time elapses and the presence / absence determination means 23 outputs an absence determination, the preheating temperature controlled by the preheating temperature changing means 24 is controlled by the first predetermined temperature. Since the temperature is changed to the second predetermined temperature range lower than the range, the power consumption in the absence of the person can be reduced, and the person presence / absence detection sensor detects the person after the change of the preheating temperature and the person presence / absence determination means 23 When the person presence determination signal is output, the preheating temperature changing means 24 returns the preheating temperature to the first predetermined temperature range so that combustion can be performed immediately in response to the combustion request.
[0009]
【Example】
A first embodiment in which the vaporizing combustion appliance according to the present invention is applied to a vaporizing oil water heater will be described with reference to FIGS.
[0010]
Reference numeral 1 denotes a main body of a vaporization type oil water heater, which is installed outdoors on a wall or stationary. 2 is a heat exchanger for hot water supply, in which a plurality of fins 3 and a hot water supply pipe 4 are integrally formed, and the tip of the hot water supply pipe 4 is connected to a hot water tap 5 provided in an indoor kitchen or sink. Has been. Reference numeral 6 denotes a remote controller that is wired or wirelessly connected to the vaporizing water heater main body 1 and is provided on a wall surface in the vicinity of the hot water tap 5 by which a user gives a command to the water heater main body 1.
[0011]
7 is a burner section for heating the heat exchanger 2 and communicates with the vaporizer 9 provided with the vaporization heater 8. The vaporizer 9 is heated by the vaporization heater 8, and the vaporized gas of the fuel oil and the primary for combustion A premixed gas made of air is burned in the burner section 7 so as to perform quiet vaporization combustion with a wide turndown ratio.
[0012]
Reference numeral 10 denotes preheating control means for controlling energization of the vaporizing heater 8, which detects the temperature of the vaporizer 9 via the vaporization temperature sensor 11, and holds the vaporizer 9 in a first predetermined temperature range in which the fuel oil can be vaporized. Specifically, when the temperature of the vaporizer 9 detected by the vaporization temperature sensor 11 is equal to or lower than the lower limit (first ON temperature) of the first predetermined temperature range, the vaporization heater 8 is energized to perform the vaporizer 9. When the temperature of the vaporizer 9 becomes equal to or higher than the upper limit (first OFF temperature) of the first predetermined temperature range, the energization of the vaporization heater 8 is cut off and the vaporizer 9 is held at a predetermined vaporizable temperature. In this way, the vaporizer 9 is preheated.
[0013]
A control device 12 includes the preheating control means 10 and is mainly composed of a microcomputer. The control device controls the evaporative petroleum water heater 1. An electromagnetic pump (not shown) for supplying fuel and a combustion fan for supplying combustion air (Not shown) and an igniter (not shown) and other driving components, and a signal from the water flow sensor 13 for detecting the flow of water provided in the hot water supply pipe 4 and a detected hot water temperature of the hot water temperature sensor 14. Combustion of the burner unit 7 is controlled by a comparison calculation between the temperature and a set value from a hot water temperature setting device (not shown).
[0014]
Reference numeral 15 denotes an operation switch provided in the remote controller 6. When the operation switch 15 is turned on, the control device 12 sends a preheat control start signal to the preheat control means 10, and the vaporizer 9 is connected to the first before the start of hot water supply. Preheating is performed within a predetermined temperature range, and this preheating state is continued for a certain time T ₁ (90 minutes here) from the start of preheating. By preheating the vaporizer 9 in this way, when the user opens the hot water tap 5, combustion starts immediately and hot water can be supplied.
[0015]
Further, when the combustion of the burner unit 7 by the end of the hot water used for pre-heating state of the predetermined time T _{1 (90} min) is stopped, to start preheating again fixed time from the combustion stop T _{1 (90} min), from the preheating start If combustion is not started for a certain time T ₁ (90 minutes), a preheating control stop signal is sent to the heater control means 12 to stop the preheating operation.
[0016]
Reference numeral 16 denotes preheating reservation timer means for preheating the vaporizer 9 for a predetermined time T ₃ (here, 90 minutes) from a preheating timer time T ₂ which is a preset scheduled hot water supply use time. by time setting means 19 consisting of partial switch 18. set preheat timer time T _2,, stores the preheating timer time T _2, the ON signal of the preheating timer switch 20, preheated to start comparison between the current time T It becomes the timer time T _2, and outputs the preheat control start signal to the pre-heating control unit 10, a predetermined time from the preheating control start T _{3 (90} minutes) for controlling the vaporizer 9 to the preheat state.
[0017]
Reference numeral 21 denotes a display unit provided in the remote controller 6 for displaying the current time T, preheating timer time T ₂ , presence / absence of preheating timer setting, preheating operation, etc., and outputs from the preheating reservation timer means 16. , before the preheating timer time T ₂ during the preheating timer operation will display the preheating timer time T _2, after the start of preheating to display the display and the current time T during the booking operation, it is clear now operating status at a glance It is what you are doing.
[0018]
A human presence / absence detection sensor 22 is provided on the front surface of the remote controller 6 to detect the presence / absence of a person, and includes an infrared sensor that detects infrared rays in the area A shown in FIG. 22 is a human presence / absence determination means for determining the presence / absence of a person based on the output of 22.
[0019]
The presence / absence determination means 23 has a timer function and a count function, and if there is no output from the presence / absence detection sensor 22 for a predetermined time T ₄ (for example, 10 minutes), it is determined that there is no person near the remote controller 6. In addition to outputting a human absence determination signal, there is an output from the human presence detection sensor 22 continuously for a predetermined time T ₅ (for example, 10 seconds) or a plurality of times within a predetermined time T ₆ (for example, 1 minute). When there is an output from the presence / absence detection sensor 22, it is determined that there is a person near the remote controller 6, and a person presence determination signal is output.
[0020]
The presence / absence detection sensor 22 is not limited to the one using such an infrared sensor, and for example, a sound sensor or an ultrasonic sensor can also be used. How the determination of human existence judgment unit 23 in the case of using the sound sensor as the human presence sensor 22, the output to the sound pressure level of the predetermined time T ₄ or the person presence sensor (sound sensor) 22 is below a certain value outputs a human absence determination signal that it, is to be detected a plurality of times the sound of more than a certain sound pressure level within a predetermined time T _5, or when a predetermined sound pressure level or sound continues consecutively a predetermined time T ₆ or more A human presence determination signal is output.
[0021]
24 receives a determination signal from the presence / absence determination unit 23, changes the preheating temperature of the preheating control unit 10 to a second predetermined temperature range lower than the first predetermined temperature range by the absence determination, and Preheating temperature changing means for returning the preheating temperature of the preheating control means 10 from the second predetermined temperature range to the first predetermined temperature range by determination.
[0022]
Then, based on the time chart of FIG. 4 will be described the operation of the first embodiment, when the current time reaches the preheating timer time T _2, which is set in the preheating reservation timer means 16, the preheating reservation timer means 16 is the preheating control A signal is output to cause the means 10 to start preheating for a predetermined time T ₃ (90 minutes).
[0023]
When the preheating control means 10 energizes the vaporization heater 8 and starts preheating, the temperature of the vaporizer 9 detected by the vaporization temperature sensor 11 and a first predetermined temperature range (first ON temperature) at which the fuel oil can be vaporized. And the first OFF temperature), the vaporization heater 8 is turned on / off so that the temperature of the vaporizer 9 is maintained in the first predetermined temperature range, and the vaporizer 9 is started before the burner unit 7 starts combustion. Preheat.
[0024]
Next, when the hot-water tap 5 is opened, the water flow sensor 13 detects a water flow, combustion by the burner unit 7 is started by this water flow detection, and hot water is supplied from the hot-water tap 5.
[0025]
When the hot-water tap 5 is closed, the water flow is not detected, the combustion in the burner unit 7 is stopped, and the count for the predetermined time T ₃ (90 minutes) from the start of the preheating is reset. A preheating standby state for a predetermined time T ₁ (90 minutes) is set.
[0026]
When there is no person from the vicinity of the remote controller 6 during the pre-heating standby for the predetermined time T ₁ (90 minutes) and the absence determination signal is output from the presence / absence determination unit 23, the preheating temperature changing unit 24 performs the preheating. By changing the preheating temperature of the control means 10 to a second predetermined temperature range (second ON temperature and second OFF temperature) lower than the first predetermined temperature range, power saving preheating with a small load on the vaporizing heater 8 is performed. Since it performs, the power consumption concerning the preheating at the time of absence of a person can be reduced.
[0027]
In addition, when performing the power saving preheating in which the preheating temperature is set to the second predetermined temperature range, if a human presence determination signal is output from the human presence determination unit 23, the preheating temperature changing unit 24 performs the preheating control. Since the preheating temperature of the means 10 is returned from the second predetermined temperature range to the first predetermined temperature range and the vaporizer 9 is preheated to a temperature range in which the fuel oil can be vaporized, the fuel oil can be vaporized well. When a person is present, combustion can be started immediately in response to a hot water supply request, and it is extremely convenient.
[0028]
When the combustion stop of the predetermined time T _{1 (90} min) from (preheating start) has elapsed, to stop the preheating stop energization control to the vaporization heater 8. Thus, since preheating is stopped after a predetermined time, unnecessary preheating operation can be suppressed and useless power consumption can be suppressed as much as possible.
[0029]
Next, the 2nd Example which applied the vaporization type combustion appliance which concerns on this invention to the vaporization type oil heater is described based on FIGS. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof is omitted.
[0030]
Reference numeral 25 denotes an evaporative oil heater main body installed indoors for heating by blowing the combustion exhaust gas in the burner section 7 inside the main body into the room from the hot air outlet 26. The presence / absence detection sensor 22 is provided.
[0031]
Reference numeral 27 denotes an operation unit provided at the upper front of the main body, an operation switch 28 for initiating combustion and instructing the start of heating, a room temperature setter (not shown), and a display for displaying the set room temperature and the current room temperature. And a preheating standby switch 30 that preheats the vaporizer 9 for a predetermined time by controlling the energization of the vaporizer heater 8 while the operation is stopped.
[0032]
A control unit 31 is configured mainly by a microcomputer, and controls the vaporization type oil heater 25. An electromagnetic pump (not shown) for supplying fuel, a combustion fan (not shown) for supplying combustion air, and ignition. It has a drive part such as a chamber (not shown) and controls the combustion of the burner unit 7 by, for example, a comparison operation between the detected room temperature of the room temperature sensor 32 and the room temperature set by the room temperature setter.
[0033]
33 outputs a preheating start signal to the preheating control means 10 when the preheating standby switch 30 is turned on, and starts counting a relatively long predetermined time T ₇ (12 hours), and this predetermined time T ₇ (12 hours). The preheating standby means for outputting a preheating stop signal to the preheating control means 10 at the end of the count, and the user once stops heating when the room is sufficiently warmed or goes out to the neighborhood, but may be used immediately. Therefore, when the preheating standby switch 30 is turned on, preheating for a predetermined time T ₇ (12 hours) is started. When heating is necessary, the carburetor 9 is in a preheated state. Heating can be started immediately without waiting for preheating.
[0034]
Next, the operation of the second embodiment will be described with reference to the time chart of FIG. 7. The user once stops heating when the room is sufficiently warmed or goes out to the neighborhood, but there is a possibility that the user will use it immediately. Therefore, when the preheating standby switch 30 is turned on, the preheating standby means 33 starts counting for a predetermined time T ₇ (12 hours) and outputs a preheating start signal to the preheating control means 10 to start preheating.
[0035]
When there is no person around the heater body 25, the presence / absence detection sensor 22 does not detect the presence of a person, so the presence / absence determination means 23 outputs a person absence determination signal to the preheating temperature change means 24. .
[0036]
Here, the preheating temperature changing means 24 changes the preheating temperature of the preheating control means 10 to a second predetermined temperature range (second ON temperature and second OFF temperature) lower than the first predetermined temperature range. Thus, power saving preheating with a small load on the vaporizing heater 8 is performed, so that it is possible to reduce power consumption required for preheating in the absence of a person for a long time.
[0037]
Then, during power saving preheating in which the preheating temperature is set to the second predetermined temperature range, when the user returns around the heater body 25, the human presence detection sensor 22 detects the person and the person is detected. A presence determination signal is output from the presence / absence determining means 23, and the preheating temperature changing means 24 returns the preheating temperature of the preheating control means 10 from the second predetermined temperature range to the first predetermined temperature range to vaporize the fuel oil. When the carburetor 9 is preheated to a possible temperature range, and the operation switch 28 is turned on, the carburetor 9 is preheated to the first predetermined temperature range in which the fuel oil can be vaporized, so that the combustion immediately occurs. It can be started and is very convenient to use.
[0038]
Further, when a predetermined time T ₇ (12 hours) has elapsed since the ON operation of the preheating standby switch 30, the energization control to the vaporizing heater 8 is stopped and the preheating is stopped. As described above, since the preheating is stopped after a predetermined time, even if the preheating standby switch 30 is forgotten to be turned on, the preheating operation is automatically stopped after the predetermined time T ₇ (12 hours) and is wasted. Power consumption can be minimized.
[0039]
If the operation switch 28 is turned on before the human presence determination means 23 outputs the human presence determination signal in the state where the preheating temperature is set to the second predetermined temperature range and the human presence determination means 23 outputs the human presence determination signal, the vaporizer 9 Is in a second predetermined temperature range lower than the first predetermined temperature range, but maintains a high temperature state to some extent, so that it is possible to start combustion immediately after waiting for a while, which is highly convenient.
[0040]
The second predetermined temperature range described in the first and second embodiments is the same as the first OFF temperature and the first ON temperature as shown in the drawing. The temperature is not limited to a temperature lower than the ON temperature. For example, the second predetermined temperature range is set by partially overlapping the high temperature side of the second predetermined temperature range and the low temperature side of the first predetermined temperature range. The temperature is set to be lower than the first predetermined temperature range, or the second OFF temperature is not changed, and only the second ON temperature is set lower than the first ON temperature, and the temperature range of the second predetermined temperature range is increased. The second predetermined temperature range may be expanded to be lower than the first predetermined temperature range. If the temperature range of the second predetermined temperature range is expanded, the ON / OFF frequency of the vaporizing heater 8 can be reduced to reduce power consumption, and the failure rate of the vaporizing heater 8 can be reduced to increase the service life. is there.
[0041]
【The invention's effect】
As described above, according to the present invention, when a person is present, the preheating temperature of the carburetor is controlled to the first predetermined temperature range in which the fuel oil can be vaporized, so that combustion can be performed immediately in response to the combustion request. When there is no person, the preheat temperature of the vaporizer can be lowered to a second predetermined temperature range lower than the first predetermined temperature range, and wasteful power consumption can be suppressed when there is no possibility of using the combustion appliance. It is energy-saving, and even if a combustion request occurs before the presence of a person is detected and the preheat temperature of the vaporizer is returned to the first predetermined temperature range, combustion can be started immediately after a short wait. There is no loss of sex.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a vaporization type petroleum water heater according to a first embodiment of the present invention.
FIG. 2 is a block diagram of a control apparatus according to the first embodiment.
FIG. 3 is a view for explaining the positional relationship between a remote controller (human presence detection sensor) and a hot water tap according to the first embodiment.
FIG. 4 is a time chart of the operation of the first embodiment.
FIG. 5 is an external view of a vaporization type oil heater according to a second embodiment of the present invention.
FIG. 6 is a block diagram of a control apparatus according to the second embodiment.
FIG. 7 is an operation time chart of the second embodiment.
[Explanation of symbols]
6 Remote control 8 Vaporization heater 9 Vaporizer 10 Preheating control means 11 Vaporization temperature sensor 22 Human presence detection sensor 23 Human presence determination means 24 Preheating temperature changing means

Claims (2)

A vaporization heater and vaporizer for vaporizing the fuel oil, a vaporization temperature sensor for detecting the temperature of the vaporizer, and energization control of the vaporization heater based on the output of the vaporization temperature sensor to vaporize the fuel vapor In a vaporization type combustion appliance having preheating control means for preheating to a first possible predetermined temperature range and a remote controller wired or wirelessly connected to the combustion appliance main body, the remote controller for detecting the presence or absence of a person A presence / absence detection sensor is provided, and presence / absence determination means for determining the presence / absence of a person by receiving the output of the presence / absence detection sensor, and a preheating temperature from the first predetermined temperature range by the absence determination of the person presence / absence determination means And a preheating temperature changing means for changing the preheating temperature to a low second predetermined temperature range and returning the preheating temperature from the second predetermined temperature range to the first predetermined temperature range by human presence determination. Equation combustion appliances. A vaporization heater and vaporizer for vaporizing the fuel oil, a vaporization temperature sensor for detecting the temperature of the vaporizer, and energization control of the vaporization heater based on the output of the vaporization temperature sensor to vaporize the fuel vapor In a vaporization type combustion appliance having preheating control means for preheating to a first possible predetermined temperature range, a presence / absence detection sensor for detecting the presence / absence of a person is provided in the combustion appliance body, and the presence / absence detection sensor The presence / absence determination means for determining the presence / absence of a person in response to the output of the output, and changing the preheating temperature to a second predetermined temperature range lower than the first predetermined temperature range by the presence / absence determination of the human presence determination means, A vaporization type combustion appliance comprising preheating temperature changing means for returning a preheating temperature from the second predetermined temperature range to the first predetermined temperature range by human presence determination.

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