JPH04136463U - hot air heater - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the odor when extinguishing a fire in a hot-air heater that burns fuel using a combustion device and forcibly releases hot exhaust into the room. [Structure] The control means 4 sets the combustion amount to the minimum combustion amount based on the combustion amount at the time of extinguishing operation, and sets the combustion time according to the combustion amount at the time of extinguishing operation. In addition, in the case where the convection fan 3 is once stopped after combustion has stopped and then rotated again for a certain period of time, a program is incorporated to set the time until the convection fan is restarted based on the amount of combustion at the time of extinguishing operation. . [Effect] The above configuration reduces unburned gas during extinguishing, reduces odor without increasing the surface temperature of the vessel, and improves comfort and safety.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a hot air heater that uses kerosene as fuel to reduce odor when extinguishing fires. It is something.

0002

[Conventional technology]

Conventionally, when extinguishing a hot air heater to reduce the odor, First reduce the combustion amount to the minimum from the current combustion amount, let it burn for a certain period of time, and then stop. let In addition, the convection fan is stopped for a certain period of time after combustion stops, and then restarted for a certain period of time. There was something that made me do it. (For example, Utility Model Application Publication No. 1-88144) This reduces the amount of unburned gas that remains in the vaporization section of the combustion device and reduces odor. It was intended to measure the

0003

[Problem that the idea aims to solve]

In an example such as the above-mentioned Utility Model Application Publication No. 1-88144, the strong combustion amount, medium combustion amount, and weak combustion amount are In either case, when extinguishing a fire, the combustion time at the minimum combustion amount is constant. In other words, it is set based on the time it takes for the unburned gas remaining in the vaporization part to decrease after strong combustion. However, there was a drawback that it took a long time during medium to weak combustion, and the extinguishing time was longer. Also, when extinguishing a fire, the convection fan is stopped for a certain period of time after combustion stops, and then restarted for a certain period of time. If the time required to restart the fan is constant, strong combustion will occur. , since the temperature of the hot air heater body differs with weak combustion, the surface temperature of the body increases with strong combustion. There were drawbacks to rising.

0004

[Means to solve the problem]

This invention was made to eliminate the above drawbacks. First, set the combustion amount to the minimum combustion amount, and then set the combustion time at this minimum combustion amount to extinguish the fire. Continue according to the combustion amount at the time of operation, and then switch to fire extinguishing mode. Also, convection In the case where the fan is stopped for a certain period of time after combustion stops, and then restarted for a certain period of time. , how to set the time until the convection fan starts rotating again based on the amount of combustion at the time of extinguishing operation. It has steps.

[0005]

[Effect]

With the above configuration, when extinguishing during combustion from strong to weak combustion, By burning at the minimum amount of combustion for a time commensurate with the amount of combustion, unresidues remaining in the vaporizer are removed. Extinguish the fire after reducing the amount of fuel gas, and stop the convection fan for a period of time commensurate with the amount of combustion. By restarting the operation after It has the effect of moving.

[0006]

【Example】

Figure 1 is a control circuit diagram showing an embodiment of the hot air heater of the present invention, and Figure 2 is a schematic diagram of the same configuration. 3 and 3 are the same flowcharts.

[0007] In the figure, 1 is an electromagnetic pump that sends fuel, and 2 is fuel sent from electromagnetic pump 1. A combustion device 3 vaporizes and burns the heat exhaust gas generated in the combustion device 2 into the room. A convection fan that blows air, 4 is the electromagnetic pump 1, the electric parts of the combustion device 2, and the convection fan. 3 to control them.

[0008] The combustion device 2 has a vaporization heater 5, a vaporizer thermistor 6, a souji rod 7, etc. inside. Attach the solenoid 9 that drives the sowing rod 7 and the nozzle 10 to the vaporizer 8, and A burner 11 is provided at the end of the burner 10, and a plug 12 is placed in the flame part of the burner 11. The structure is such that the vessel 13 is provided at a position away from the burner 11. The control means 4 controls The operation switch 15, cut-off switch 16, and switch switch connected to the control circuit 14 having a regular microcomputer, etc. a flame detection hand that receives input from a flame rod 17 provided in the flame part of the burner 11; It consists of a stage 18, a room temperature setting means 19, a room temperature detection means 20 consisting of a thermistor, etc. It is. The control microcomputer of the control circuit 14 performs a fire extinguishing operation during combustion. The oil flow rate of the electromagnetic pump 1 is determined by the combustion mode at that time (for example, quick heating = oil flow rate of 9, strong = 8 , 9, Medium = 6, 5, Weak = 4, 3, Slight = 2, High in 1 = Burning with oil flow rate 8 If so, reduce the oil supply amount in 8) to the lowest combustion mode (weak 1), and After burning for the time corresponding to the mode, it is set to extinguishing mode (oil supply amount 0) and , the convection fan 3 is stopped for a time corresponding to each combustion mode, and then restarted for a certain period of time. It is programmed to rotate.

[0009] The operation of this embodiment having the above configuration will be explained.

0010 When the operation SW 15 is turned on, the vaporizer heater 5 is energized and heating starts. vaporizer 8 rises to a certain temperature, the vaporizer thermistor 6 provides an input to the control circuit 14, The solenoid 9 is turned on and the solenoid rod closes the hole of the nozzle 10 of the carburetor. Even more careful When the temperature of the converter 8 rises, the electromagnetic pump 1 is activated four seconds before the ignition command is issued. ignition finger At the same time, the solenoid 9 turns OFF, the solenoid rod 7 of the nozzle 10 is released, and the nozzle The vaporized gas is sent from the burner 10 to the burner 11, the igniter 13 is turned on, and the plug 12 is turned on. Sparks and combustion begins. Convection fan 3 rotates and sends air with a 5 second delay from the ignition command. Wind. The frame detection means 18 detects the frame via the frame rod 17. , in the case of YES, a steady combustion state is established. During operation, the combustion mode changes depending on the room temperature. Ru. The combustion mode changes from 9 to 1, with 9 being quick heating, 8 and 7 being strong, and 6 and 5 being medium. , 4 and 3 are weak, and 2 and 1 are weak. Turn off SW17 when extinguishing the fire. Then, any combustion mode 9 to 1 will always shift to combustion mode 1, which has the lowest amount of heat. , the time corresponding to each combustion mode (in this example, 9, 8, 7 are 5 seconds, 6, 5 are 4 seconds, 4, 3 for 3 seconds, 2, 1 for 2 seconds), and after the generation of vaporized gas is minimal. It is something that stops. When combustion is stopped, the electromagnetic pump 1 is also turned off. Sole Noid 9 turns on 2 seconds after combustion stops, and the jet from nozzle 10 is closed by souji rod 7. do. In addition, the convection fan 3 is set to the combustion mode when the switch 17 is turned off after combustion has stopped. After stopping for the corresponding time (in this example, 9, 8, 7 for 10 seconds, 6, 5 for 12 seconds, 4, 3 (14 seconds for 14 seconds, 16 seconds for 2, 1), and the vaporized gas coming out of burner 11 is After discharging air by natural convection, the hot air heater rotates again for a certain period of time (40 seconds in this example). Cool and then stop.

[0011]

[Effect of the idea]

As described above, according to the present invention, when the control means is operated to extinguish the fire, the Burn in the lowest combustion mode for a time commensurate with the combustion mode at the time of extinguishing the fire, then extinguish the fire. After the fire is extinguished, the convection fan is stopped for a period of time commensurate with the combustion mode at the time of extinguishing, and then restarted. By rotating for a certain period of time, the amount of unburned vaporized gas during extinguishing is reduced, and The gas is released upward by natural convection and then the container is cooled, which greatly reduces the odor when extinguishing a fire. In addition to reducing the amount of fire, it is possible to extinguish the fire quickly if the amount of combustion is small due to the cutting operation. In addition, the convection fan should be stopped as soon as possible when stopping from strong combustion when the temperature of the vessel is high. Re-rotation prevents temperature rise on the surface of the vessel, improving comfort and safety. It has the effect of

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of a hot air heater showing an embodiment of the present invention.

FIG. 2 is a similar schematic configuration diagram.

FIG. 3 is a similar flowchart.

[Explanation of symbols]

1 Electromagnetic pump 2 Combustion device 3 Convection fan 4 Control circuit

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Minoru Tadokoro Nihon Co., Ltd. 23-1 Shinjuyo, Kashiwa City, Chiba Prefecture Inside the standing platform tech

Claims (2)

[Scope of utility model registration request] [Claim 1] An electromagnetic pump that sends fuel, a combustion device that vaporizes and burns the fuel sent from the electromagnetic pump, and a convection fan that forcibly discharges heat exhaust gas generated by the combustion device into a room. In the equipped hot air heater, when the fire extinguishing operation is performed during combustion, the combustion amount is set to the minimum combustion amount, and the combustion time at the minimum combustion amount is set in an extinguishing mode after the combustion time set according to the combustion amount at the time of the extinguishing operation. control means to
(4) Hot air heater equipped with. [Claim 2] The control means (4) stops the combustion in the fire extinguishing mode, stops the convection fan for a certain period of time, and then rotates the convection fan again for a certain period of time. 2. The hot air heater according to claim 1, wherein the time is set according to the amount of combustion at the time of extinguishing operation.