JPH01111165A - Heating machine - Google Patents

Abstract

PURPOSE:To ventilate automatically in accordance with an indoor temperature, by a method wherein the title heating machine is provided with a damper controller, which operate a motor driven damper and open a ventilating passage when the indoor temperature, detected by an indoor temperature detector, has arrived at the set temperature of a temperature setter. CONSTITUTION:When the temperature of a heat exchanger 6 has risen to a predetermined temperature, a warm air fan 8 is rotated to discharge warm air into a room and heat it by warm air. When an indoor temperature T1 has arrived at a set temperature T2, a damper controller 22 energizes a solenoid 20 and a burner unit 5 effects low combustion. A damper plate 21 opens an air passage 17 and closes a feed air passage 16 by the conduction to the solenoid 20, therefore, indoor air is sucked by an air feeding fan 12 through the inlet port of the air passage 17 and is discharged to the outside of the room through an exhaust gas passage 13 as the exhaust gas of the combustion of the burner unit 5. When the indoor temperature T1 is reduced to a temperature lower than the set temperature T2, the damper controller 22 deenergizes the solenoid 20 and the burner 5 effects high combustion while the damper plate 21 closes the air passage 17 and stops the ventilation of the indoor air.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of the Invention The present invention relates to a heating machine such as an outdoor air supply/exhaust hot air heater equipped with a ventilation function.

(B) Conventional technology In this type of heater, an indoor air ventilation path is branched off from the air supply path that supplies outdoor air to the burner section, and this branch section is used to switch between indoor air and outdoor air intake. A device equipped with a damper to enable ventilation is known from Japanese Utility Model Publication No. 53-24123. However, with this conventional configuration, the user had to rotate the damper every time the user needed ventilation, which was very troublesome.

(c) Problems to be solved by the invention The present invention has been made in view of the above-mentioned problems, and uses an electric damper to switch the air supplied to the burner section between indoor air and outdoor air. The purpose is to provide a heater that can automatically perform ventilation according to temperature.

(d) Means for Solving the Problems The present invention provides a temperature setting device, a room temperature detector, a burner unit that sucks outdoor air from an air supply path and discharges combustion exhaust outdoors from an exhaust path, and a burner unit that directs indoor air to the burner unit. and an electric damper for opening and closing the ventilation air passage, and actuating the electric damper when the indoor temperature detected by the room temperature detector reaches the set temperature of the temperature setting device. The structure is equipped with a damper controller that opens the ventilation passage.

(e) With the start of operation, the indoor temperature rises, and the room temperature detector (25
) When the indoor temperature T1 detected by the temperature setting device (23>) reaches the set temperature T2, the electric damper (19) is activated and the ventilation air passage (17) is opened to automatically perform ventilation. There is no need for the user to perform ventilation operations every time ventilation is required, and ventilation can be performed without the need for troublesome operations.In addition, ventilation is performed when the indoor temperature T reaches the set temperature. , it is possible to prevent the indoor air that has started to warm from being discharged outdoors, and there is no delay in the rise in room temperature at the start of heating.

(f) Example Hereinafter, the present invention will be explained based on an example shown in FIGS. 1 to 5. (1) is a heater that is installed indoors and heats the room with hot air, with a filter (
2) for hot air suction, and a warm air outlet (4) in the lower front part. A combustion heat source device (7) which connects a burner part (5) and a heat exchanger (6>) is disposed in the lower part of the heater body (1), and the upper part of the heater body (1) A hot air blower (8) is disposed in the burner section, and the rotation of the hot air blower (8) causes warm air to be discharged into the room from the hot air outlet (4).The burner section ( 5) has a heater (9)
A vaporizing burner (11) that is heated by a kerosene to vaporize fuel such as kerosene and burns it in a flame hole (10), and a supply air blower (12) that supplies combustion air to this vaporizing burner (11). After combustion in the burner section (5), the combustion exhaust gas passes through the heat exchanger (6), passes through the exhaust path (13), and is discharged from the exhaust section (14A) of the supply/exhaust pipe (14) to the outside ( discharged outdoors).

The combustion amount of the vaporization burner (11) can be varied by varying the rotational speed of the air supply blower (12) and the amount of fuel supplied through the fuel supply pipe (15), but it is possible to vary the amount of combustion by changing the rotation speed of the air supply blower (12) and the amount of fuel supplied through the fuel supply pipe (15). The heating capacity may be varied by changing the heating capacity.

(16) supplies outdoor air sucked from the air supply part (14B) of the supply and exhaust pipe (14) to the vaporization burner (11) of the burner part (5) by rotation of the supply air blower (12). In the air supply path, a ventilation air path (17) that sucks room air and supplies it to the burner section (11) is provided in the middle of the air supply path (16) so as to merge with the air supply path (16). In addition, a filter (18) is provided at the entrance of a ventilation path (17) that opens into the room at the rear of the heater body (1).

(19) is an electric damper provided at the confluence of the air supply path (16) and the ventilation path (17);
9) is equipped with a solenoid (20>) and a damper plate (21) operated by this solenoid (20), and this damper plate (21) alternately opens and closes the air supply path (16> side and the ventilation path (17) side). That is, when the solenoid (20) is energized by the damper controller (22), the damper plate (21) closes the air supply path (16) side as shown in FIG. 17) side, open the damper controller (
22) stops energizing the solenoid (20), the first
As shown in the figure, the damper plate (21) closes the air passage (17) side and opens the air supply passage (16) side.

(23) is a temperature setting device such as a temperature control volume provided on the operation part (24) of the heater body (1), and (25) is a room temperature detector that detects the room temperature. When the room temperature T detected by the sensor does not reach the set temperature T set by the temperature setting device (23), the damper controller (22) stops energizing the solenoid (2o), and the vaporization type When the burner (11) burns strongly and the indoor temperature T reaches the set temperature T, the damper controller (22) energizes the solenoid (2o) and
The vaporizing burner (11) is configured to perform weak combustion.

Next, the operation of the heater of the present invention will be explained. First, when the operation switch (not shown) is turned on to start operation, since the indoor temperature T is lower than the set temperature T, the solenoid (2o) of the electric damper (19) is not energized ( OF
Condition F), the damper plate (21) closes the ventilation path (17) side and opens the air supply path (16) side, and the burner section (5) is supplied with outdoor air and combustion occurs in a strong combustion state. Start.

When the heat exchanger (6) rises to a predetermined temperature after the burner section (5) starts combustion, the hot air blower (8) rotates and releases warm air into the room, heating the room with hot air. Then, as shown in Figure 4, the room temperature gradually rises, and this room temperature T
, reaches the set temperature T, the damper controller (22) energizes the solenoid (20) (ON state), and the burner section (5) enters weak combustion. By energizing the solenoid (20), the damper plate (21
) opens the ventilation path (17) side and closes the air supply path (16) side, so indoor air is sucked in from the inlet of the ventilation path (17) by the air supply blower (12) and the burner section (
5>, and the indoor air supplied to this burner part (5) is passed through the exhaust passage (13) as combustion exhaust from the burner part (5).
) and is discharged outdoors.

Furthermore, when the indoor temperature T falls below the set temperature T2 due to ventilation of indoor air and weak combustion in the burner section (5), the damper controller (22) again stops energizing the solenoid (20) and turns off the burner. The part (5) becomes intensely combusted, and the damper plate (21) closes the ventilation passage (17) as shown in Figure 1.
The side of the room is closed, ventilation of indoor air is stopped, and the above-mentioned operations are repeated thereafter.

Therefore, the user does not have to go through the trouble of operating the damper each time for ventilation. Further, after the room temperature T detected by the room temperature detector (25>) reaches the set temperature T2 of the room temperature setting device (23), the electric damper (19) opens the ventilation path (21) side to perform ventilation. Therefore, when the room temperature T+ is low and has not yet reached the set temperature T2, the indoor air that has started to warm will not be discharged outside from the exhaust path, and the rise in room temperature at the start of heating will not be delayed. .

In addition, FIG. 6 is a flowchart showing another embodiment, in which a timer is provided to turn on and off the solenoid (20) of the electric damper (19) at fixed time intervals, so that the indoor temperature T once reaches the set temperature T2. After that, the energization of the solenoid (20) may be controlled by a timer.

(G) Effects of the Invention According to the present invention, when the indoor temperature detected by the room temperature detector reaches the set temperature of the temperature setting device, the electric damper is activated to automatically ventilate the room. It is not necessary for a person to perform ventilation operations every time a person needs ventilation, and ventilation can be performed without requiring troublesome operations. or,
Ventilation is performed after the indoor temperature reaches the set temperature, which prevents indoor air that has started to warm from being discharged outdoors, and without delaying the rise in room temperature when heating starts, allowing heating to start with a good start. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a warm air heater installed indoors, which is an embodiment of the present invention, Fig. 2 is a cross-sectional view to explain the ventilation state, and Fig. 3 is a cross-sectional view to explain the burner section. A cross-sectional view of
FIG. 4 is a characteristic diagram showing the relationship between the energization state to the electric damper and room temperature in the present invention, FIG. 5 is a flowchart for explaining the operation of the electric damper, and FIG. 6 is a flowchart for explaining other operations. (5)...Burner part, (13)...Exhaust path, (
16)... Air supply path, (17)... Ventilation air path,
(19)...Electric damper, (22>...Damper controller, (23)...Temperature setting device, (25)
...Room temperature detector.

Claims (1)

[Claims] (1) Temperature setting device, room temperature detector, burner section that sucks outdoor air from the air supply path and discharges combustion exhaust outdoors from the exhaust path, ventilation air path that supplies indoor air to the burner section, and this ventilation air. A damper controller comprising an electric damper that opens and closes the ventilation passage, and operates the electric damper to open the ventilation air passage when the room temperature detected by the room temperature detector reaches the set temperature of the temperature setting device. A heating machine characterized by the following: