JPH01127854A - Heater - Google Patents

Abstract

PURPOSE:To prevent the occurrence of a delay in heating, by a method wherein, after lapse of a given time starting from the stop of heating ot a heating source, the starting of heating is effected. CONSTITUTION:A control device 30 inputs signals from an operation switch 31 to set a starting and a stop, a temperature set means 32, a room temperature detecting means 33 to detect an indoor temperature from the temperature of air sucked in an indoor air suction port 12, a thermocouple 34 to detect the presence of flame and the combustion state of flame above a gas burner 15, and controls energization of an ignition electrode 35 to fly sparks at a position on the combustion surface of the gas burner 15, a blower 13, a main valve 23, a safety valve 24, and a proportional control valve 26. Thus, even when a heater body is heated during preceding heating operation and the heat of the body is transferred to the room temperature detecting means 33 and lowering of a room temperature can not be detected by the room temperature detecting means 33, since the starting of combustion is effected after elapse of a set time starting from the stop of combustion, a room can be heated through prediction of lowering of a room temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heater that heats a room using a heating source.

[Prior Art] A conventional heater includes a temperature setting means set by the user and a room temperature detection means for detecting the indoor temperature, and the heating of the heating source is controlled according to the relationship between the indoor temperature and the set temperature. There was one to start and stop.

[Problems to be Solved by the Invention] In the above-mentioned heater, when the heating source heats the room, the heat of the heating source is transmitted to the heater body, and the heater body is heated. On the other hand, the room temperature detection means is attached to the heater body.

For this reason, the heat from the heater body is transferred to the room temperature detection means, and the temperature detected by the room temperature detection means does not match the actual room temperature. In some cases, the program did not start.

The present invention has been made in view of the above circumstances, and its purpose is to predict a decrease in the room temperature even if the detected temperature of the room temperature detection means does not fall to the heating start temperature, and start heating to heat the room. Provides heating equipment.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a heating source that directly or indirectly heats a room, a temperature setting means that is set by a user, and a temperature detecting device that detects the room temperature. and a control device for controlling the start and stop of heating of the heat source according to the set temperature of the temperature setting device and the detected temperature of the room temperature detection device, the control device The technical means is to start heating after a set time has elapsed after the heating of the heating source has stopped.

[Operations and Effects of the Invention] The present invention having the above configuration starts heating after a set time has elapsed after heating has stopped, so the main body of the heater is heated by the heat of the heating source during the previous heating operation, and the Heat from the heater body is transmitted to the temperature detection means, and even if the room temperature detection means cannot detect a decrease in room temperature, it is possible to predict a decrease in room temperature and heat the room.

[Example] Next, a heating machine of the present invention will be described based on an example shown in the drawings.

FIG. 2 shows a schematic configuration diagram of a gas combustion type heater.

This gas combustion type heater is an indoor open type (generally called a gas fan heater) that combusts the air sucked in from the room and blows out the combustion gas back into the room. , a combustion air circulation path 10 that blows combustion gas back into the room, a gas supply path 20 that supplies gas into this combustion air circulation path 10, and a combustion air circulation path 10 and a gas supply path 20 that control the combustion air circulation path 10 and the gas supply path 20. and a control section W30 that performs combustion control.

The above-mentioned combustion air circulation path 10 includes an indoor air intake port 12 equipped with an air filter 11 that introduces air from the room, and an indoor air intake port 12 that takes air from the indoor air intake port 12, and the air inside the combustion air circulation path 10 and the combustion air. A blower 13 that flows gas, a gas mixing chamber 14 that mixes air and gas, a gas burner 15 that is a heating source of the present invention that burns gas on one side of this gas mixing chamber 14, and this gas burner 15. It consists of a mixing chamber 16 that mixes the combustion gas combusted in the chamber with indoor air, and a hot air outlet 17 that blows out the air heated in the mixing chamber 16 as hot air.

The gas supply path 20 includes a gas jet nozzle 21 that jets gas into the gas mixing chamber 14 of the combustion air circulation path 10, a gas supply pipe 22 that guides the gas to the gas jet nozzle 21, and an upstream side of the gas supply pipe 22. A main valve 23 is provided on the side and is opened and closed by energization and de-energization, a safety valve 24 is provided downstream of this main valve 23 and is opened and closed by energization control like the main pulp 23, and a safety valve 24 is provided downstream of this safety valve 24. A governor valve 25 is provided to regulate the gas pressure, a proportional control valve 26 is provided downstream of the governor valve 25 and whose opening degree varies depending on the amount of electricity supplied, and a proportional control valve 26 is provided to adjust the gas pressure regardless of the opening or closing of the proportional control valve A gas bypass 28 is provided with a flow rate adjustment screw 27 for supplying a constant amount of gas from the flow of the proportional control valve 26 to the gas jet nozzle 21.

The control unit ff130 is an operation switch 3 that is operated by the user and sets the start and stop of the gas combustion type heater.
1, a temperature setting means 32 set by the user,
Provided within the indoor air intake port 12, the indoor air intake port 12
Signals are input from a room temperature detection means 33 such as a thermistor that detects the indoor temperature from the temperature of the air drawn into the interior, and a thermocouple 34 that detects the presence or absence of flame and the combustion state of the flame above the gas burner 15. It controls the energization of the ignition electrode 35 that causes sparks to fly on the combustion surface of the gas burner 15, the blower 13, the main valve 23, the safety valve 24, the proportional control valve 26, and the like. Note that the control device 30 of this embodiment uses a microcomputer.

Next, the main control portions by the control device 30 according to the present invention will be explained based on the flowchart of FIG.

When the operation switch 31 is turned on, in step S1, spark discharge by the ignition electrode 35, spark detection, main valve 23, and safety valve 24 are opened, and the burner 15 is opened.
Then, in step S2, the indoor temperature detected by the room temperature detection means 33 is determined to be the temperature. It is determined whether the temperature is higher than the set temperature set by the setting means 32 plus 2°.

If the judgment result is NO, it is judged that the room temperature is low and the process returns to step S1 to perform heating operation, and step S2
If the determination result is YES, in step S3, the main valve 23 and the safety valve 24 are closed, the control of the proportional control valve 26 and the blower 13 is stopped, and the burner 15 is closed.
Stops gas combustion (that is, stops heating operation).

Next, in step S4, it is determined whether the indoor temperature detected by the room temperature detection means 33 is lower than the set temperature set by the temperature setting means 32.

If the determination result in step S4 is YES, it is determined that the indoor temperature has fallen below the user's desired temperature, and step S4 is performed.
Return to 1. Further, if the determination result in step S4 is NO, in step S5, a set time (15 minutes in this embodiment) has elapsed since the burner 15 stopped burning fuel, that is, the heating operation stopped. make a judgment as to whether or not it was done.

If the determination result in step S5 is NO, step S4
If the answer is YES, the main body of the heater was heated during the previous heating operation, and the heat of the main body is transferred to the room temperature detection means 33, and the room temperature detection means 33 cannot detect a decrease in the room temperature, so the room temperature decreases at this time. It is predicted that this will occur, and the process returns to step S1 to start combustion in the burner and heat the room.

As shown in the above embodiment, the main body of the heater was heated during the previous heating operation, and the heat of the main body is transmitted to the room temperature detection means 33, so that even if the room temperature detection means 33 cannot detect a decrease in the room temperature, combustion is stopped. Since combustion starts after a set time (15 minutes) after the start of heating, it is possible to predict a drop in room temperature and heat the room, eliminating the problems of the past.

Although the set time is 15 minutes in this embodiment, the present invention is not limited to this, and various settings are possible, and the set time can be adjusted to suit the size of the room. It's okay.

Although the heating start temperature was set to 2° higher than the set temperature set by the temperature setting means,
Although we have shown an example in which a computer is used as the temperature control device, which allows the temperature to be set higher or lower than the temperature control device, it is also possible to set the temperature to a higher or lower temperature than the temperature control device. Also good.

Further, although an example in which gas is used as fuel has been shown, the present invention may also be applied to a heater that burns other fuels such as kerosene.

Furthermore, although an example in which the present invention is applied to an indoor open type combustion type heater has been shown, other types of combustion type heaters such as an FF type combustion type heater that releases combustion gas to the outside, a combustion type heater incorporating a refrigeration cycle, etc. It can be applied to combustion-type heaters of this type, heaters that use electric heaters as the heating source, and heaters that heat the liquid once with the heating source.
It may also be applied to a hot water type heater that heats a room with the heated liquid.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing the main parts of the present invention programmed into a control device, and FIGS. 2 and 2 are schematic diagrams of a gas combustion hot air heater. In the figure 15...Gas burner 30...Control device 3
2...Temperature setting means 33...Room temperature detection means

Claims (1)

[Scope of Claims] A heating source that directly or indirectly heats a room, a temperature setting device set by a user, a room temperature detection device that detects the temperature of the room, and a set temperature of the temperature setting device and the temperature setting device. and a control device that controls the start and stop of heating of the heating source according to the temperature detected by the room temperature detection means, the control device controlling the set time after heating of the heating source stops. A heating machine characterized in that heating starts afterward.