JP3163529B2 - Heat storage combustion heating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage combustion heating apparatus in which room air is heated by combustion to generate hot air, and the heat storage section which stores heat by heating also generates hot air.

[0002]

2. Description of the Related Art In a conventional combustion heating apparatus of this kind,
As shown in FIG. 12, a burner 102 disposed in a main body casing 101, a combustion tube 103 equipped with the burner 102, and a blower 104 that sucks and blows room air
And a mixing unit 105 for mixing the combustion gas from the burner 102 with the indoor air from the blower 104 to generate hot air, a hot air outlet 106 for blowing hot air, and detecting and controlling the room temperature. The configuration includes a room temperature sensor 107 and a control unit 108 for controlling the burner 102 and the blower 104.

[0003] In the case of heating by the combustion heating device configured as described above, the burner 102 is burned by operating the control unit 108 and the combustion gas from the burner 102 and the blower 104 are driven by driving the blower 104. Was mixed with the indoor air in the mixing section 105 to generate warm air, and the room was heated by blowing warm air from the warm air outlet 106. At this time, the room temperature is detected by the room temperature sensor 107, and when the room temperature reaches the set temperature, the combustion of the burner 102 is stopped to control the temperature to a constant temperature.

[0004]

In the conventional combustion heating apparatus , if the combustion operation by the burner 102 is performed at bedtime to maintain the heating of the room, the indoor environment is quiet. There was a problem that the sound became noise and hindered sleep.

In order to maintain the combustion, ventilation of the indoor air is required. However, ventilation cannot be performed by opening windows during sleep. Therefore, when heating is continued during sleep, heating is not performed by combustion operation. It was inconvenient, such as heating with electricity or heating without generating combustion gas in the room.

In the heating operation, the burner 102
Is generally reduced in response to the rise in room temperature. However, there is a problem in that the combustion amount cannot be reduced below the minimum combustion amount due to a limitation due to the characteristics of the burner 102. On the other hand, if the heating operation is performed in a room with good airtightness or when the outside air temperature is high such as in the early spring, the heating load of the room is small and the minimum combustion amount rises to the set temperature or more. Was needed. However, in this case, there is also a problem that an ignition sound is generated every time the on-off operation is repeated and becomes a noise, and an odor due to the unburned portion is generated each time the fire extinguishing operation is repeated, which is unpleasant.

According to the present invention, a specific control unit which can be heated at the time of going to sleep by using heat storage instead of heating by burning a burner so that sleep is not disturbed by noise of combustion noise and ventilation of room air is not required. It is an object of the present invention to provide a heat storage combustion heating device having:

[0008]

In order to achieve the above object, in a heat storage combustion heating apparatus according to the present invention, a combustion burner, a blower for circulating indoor air, and a heat storage unit for storing heat by being heated by the combustion burner. And a control unit capable of selecting operation in a combustion heating mode in which room air is heated by combustion of the combustion burner and operation in a heat storage heating mode in which room air is heated by heat release from the heat storage unit. It has the function of

The control unit includes a combustion heating mode in which the room air is heated and circulated by the combustion of the combustion burner and the operation of the blower, and a heat storage heating mode in which the room air is heated and circulated by the radiation of the heat storage unit and the operation of the blower. And the function of stopping the operation of the blower at a predetermined temperature of the heat storage unit in the operation in the heat storage heating mode can be provided.

The control unit may have a function of controlling the combustion of the combustion burner to select the operation in a heat storage combustion mode for maintaining the heat storage unit at a predetermined temperature.

The control unit controls the combustion of the combustion burner to maintain heat in the heat storage unit at a predetermined temperature. From the operation in the heat storage combustion mode, the heat storage unit heats and circulates the indoor air by radiating the heat storage unit and operating the blower. A function to shift to the operation in the heating mode may be provided.

Further, the control unit has a function of controlling the combustion of the combustion burner to reserve the start time of the operation in the heat storage combustion mode in which the heat storage unit is maintained at a predetermined temperature, or controls the combustion of the combustion burner. At the predetermined temperature of the heat storage unit in operation in the heat storage combustion mode in which the heat storage unit is stored at a predetermined temperature, a function is provided for shifting to operation in a heat storage heating mode in which room air is heated and circulated by the heat radiation of the heat storage unit and the operation of the blower at the predetermined temperature of the heat storage unit. You may let it.

Further, the control unit controls the combustion of the combustion burner, and after the operation in the heat storage combustion mode in which the heat storage unit is stored at a predetermined temperature, the indoor air is heated and circulated by the combustion of the combustion burner and the operation of the blower. It has a function to select the operation in the combustion heating mode and reserve the start time of the operation in the combustion heating mode and the indoor temperature, or to heat and circulate the indoor air by the combustion of the combustion burner and the operation of the blower. After the operation, it that-out also de <br/> to or have a function to shift the operation of the heat storage heating mode for heating circulating indoor air by the heat radiation of the residual heat of the heat storage section and the operation of the blower.

[0014]

In the heat storage combustion heating device configured as described above, the function of the control unit heats and heats the indoor air in the operation in the combustion heating mode, and simultaneously heats the heat storage unit to store heat therein. Then, it is possible to perform heating for heating the indoor air by radiating heat from the heat storage unit by the operation in the heat storage heating mode.

Further, when the temperature of the heat storage unit is lowered to the set temperature by the operation of the heat storage heating mode and the heat storage amount required for heating is released, the operation of the blower is stopped by the function of the control unit, and the cool air is circulated in the room. Will not be done.

In addition, the function of the control unit controls the combustion of the combustion burner on / off during operation in the heat storage heating mode to maintain the heat storage unit at a predetermined temperature, or the combustion of the combustion burner during operation in the heat storage combustion mode. Under the control, the heat storage section is maintained at the predetermined temperature.

Further, the operation of the heat storage combustion mode is started at the reserved time by the function of the control unit, or when the heat storage amount of the heat storage unit becomes sufficient and reaches a predetermined temperature in the operation of the heat storage combustion mode, the heat storage operation is started. The operation is switched to the heat storage heating mode in which the amount of heat is released.

When the heat of the heat storage section is sufficiently stored in the operation in the heat storage combustion mode by the function of the control section, the operation in the combustion heating mode is started at the reserved time, and the room is heated to the reserved temperature. can Ru.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, 1 is a main body casing in which a burner 2 is disposed, 3 is a combustion cylinder equipped with the burner 2,
4 is a blower for circulating indoor air, 5 is a mixing section for mixing combustion gas and indoor air, 6 is a hot air outlet, 7 is a room temperature sensor for detecting hot air, 8 is a burner 2 and the blower 4 are controlled. In the control unit, the operation in the combustion heating mode in which indoor air is exchanged for warm air with the combustion heat generated by the combustion of the burner 2 and the operation of the blower 4 and the combustion of the burner 2 are stopped, and the operation of the blower 4 is continued. The air exchanges heat with the heat released from the heat storage unit 9 to produce hot air, and when the heat storage unit 9 decreases to the set temperature due to the heat release, the operation of the blower 4 is also stopped. Then, control is performed so that operation in the heat storage heating mode can be performed after operation in the combustion heating mode. In addition, the heat storage part 9 is the combustion cylinder 3
When the burner 2 is burning, heat is stored by the combustion gas, and when the combustion is stopped, the stored heat is radiated. Reference numeral 10 denotes a heat storage unit sensor that detects the temperature of the heat storage unit 9.

First, when the controller 8 selects the operation in the combustion heating mode, the burner 2 and the blower 4 are operated, and the indoor heat is exchanged by the combustion heat of the burner 2 to generate hot air. Is also heated by the combustion heat and stores heat. Then, when the room temperature rises to a set temperature, for example, 20 ° C., the control unit 8 shifts from the operation in the combustion heating mode to the operation in the heat storage heating mode, so that a comfortable sleep can be obtained. As a result, the operation of the burner 2 stops,
The blower 4 continues to operate, and the indoor air is exchanged heat by the heat radiation from the heat storage unit 9 to become warm air and heat (FIG. 2).
reference). It is difficult to keep the room temperature constant with the warm air by the heat storage unit 9 and the temperature is lowered as shown in FIG. 2, but the air is heated by the heating in the combustion heating mode, and the heating in the heat storage heating mode is not performed. Since the temperature drop is smaller than in the case where there is no heating, there is a sufficient heating effect.

When the heat storage sensor 10 detects that the temperature of the heat storage section 9 has reached the set temperature, it determines that the heat storage section 9 has finished radiating heat and stops the operation of the blower 4 to cool the heat without heat radiation. The circulation of the indoor air is stopped, and the operation in the heat storage heating mode is ended. Thus, burner 2
Can be heated without heating due to the combustion of air, and a comfortable fall can be obtained because the decrease in room temperature is small.

When the operation is performed in the combustion heating mode, the function of controlling the combustion of the burner 2 on and off and controlling the room temperature to the set temperature by heating with the hot air by the heat storage unit 9 when the burner 2 is off is controlled. It can also be provided in the section 8 (see FIG. 3).

In this case, when the room temperature reaches the set temperature in the operation in the combustion heating mode by the operation of the control unit 8,
The combustion of the burner 2 is stopped, and the operation of the blower 4 is continuously heated by the heat radiation from the heat storage unit 9. On-off such that the combustion of the burner 2 starts when the room temperature falls below a set temperature by a certain temperature. Control is performed (solid line in FIG. 3).

Therefore, when the operation in the combustion heating mode is selected by the control unit 8, the combustion of the burner 2 and the operation of the blower 4 are started, and the room air becomes warm air and heated, and at the same time, the heat storage unit 9 is also heated. Is stored. When the room temperature set by the room temperature sensor 7 is detected, the combustion of the burner 2 is stopped, and the blower 4 continues to operate to heat by heat radiation by the heat storage unit 9. Therefore, the room temperature gradually decreases as shown by the solid line in FIG. Then, when the room temperature drops by a certain temperature difference from the set temperature, the burner 2 is burned by on-off control. The time (Toff) during which the burner 2 is turned off is longer in the case of heating by the heat release of the heat storage unit 9 (solid line in FIG. 3) than in the case of no heat release by the heat storage unit 9 (dotted line in FIG. 3). , The number of on-off repetitions is reduced, and a fire-extinguishing sound is generated by on-off control
Odor generation during fire extinguishing can be reduced.

Further, the operation in the combustion heating mode in which the combustion of the burner 2 is turned on / off to maintain the room temperature at the set temperature, and the combustion of the combustion burner 2 is turned on to maintain the heat storage section 9 at the set temperature. The control unit 8 may have a function of selecting the operation in the heat storage combustion mode in which the off control is performed (see FIG. 4).

In this case, when operating in the combustion heating mode by the operation of the control unit 8, the room temperature is detected by the room temperature sensor 7 and the combustion of the burner 2 is controlled so that the room temperature falls within a set temperature, for example, 20 to 30 ° C. Is turned on and off, and the operation in the heat storage combustion mode is selected, the heat storage unit 9 is operated.
The temperature of the heat storage unit 9 is detected while the temperature of the heat storage unit 9 is detected by the heat storage unit sensor 10.
Is heated to the set temperature, and when the temperature of the heat storage unit 9 decreases due to heat radiation, the combustion of the burner 2 is controlled on / off to secure the heat storage amount and maintain the heat storage unit 9 at the set temperature.
The set temperature of the heat storage unit 9 is, for example, 200 to 600
It is preferable that the temperature is set to ° C.

Further, the control unit 8 may have a function of switching to the heat storage heating mode after the heat storage unit 9 has sufficiently stored heat in the operation in the heat storage combustion mode (see FIG. 5).

In this case, the operation of the control section 8 heats the heat storage section 9 to the set temperature by the combustion of the burner 2 while detecting the temperature of the heat storage section 9 by the heat storage section sensor 10 and further turns on the combustion of the burner 2. -Control off to maintain the heat storage unit 9 at the set temperature, and then switch to operation in the heat storage heating mode. In the operation in the heat storage heating mode, the combustion of the burner 2 is stopped, the operation of the blower 4 is continued, and the heat is heated by the heat radiation from the heat storage unit 9. Therefore, since the heat is always stored at the set temperature, it is possible to perform a good heating operation in both the heating capacity and the heating time.

Further, a function of making a reservation for the time at which the operation in the heat storage combustion mode is started can be given to the control unit 8 (see FIG. 6).

In this case, the operation of the control unit 8 starts the operation in the heat storage combustion mode and heats the heat storage unit 9 at the preset time, so that the heat storage and heating is performed in a state where the heat storage unit 9 is securely stored. You can enter mode operation.

Further, the controller 8 may be provided with a function of switching the operation to the heat storage heating mode when the temperature of the heat storage unit 9 reaches the set temperature while operating in the heat storage combustion mode.

In this case, the operation of the control unit 8 allows the temperature of the heat storage unit 9 heated by the operation in the heat storage combustion mode to be
When the temperature of the heat storage unit 9 reaches the set temperature, the operation of the burner 2 is stopped and the operation is switched to the heat storage heating mode. Therefore, after the heat storage amount of the heat storage unit 9 is secured, the heat storage unit 9 is detected. 9 heating.

Further, the control unit 8 can have a function of making a reservation setting of a time at which the operation in the combustion heating mode, which is operated after the operation in the heat storage heating mode, is started, and a room temperature by heating (see FIG. 7).

In this case, the operation in the combustion heating mode is started at the reserved time after the operation in the heat storage heating mode, and the heating is performed to the room temperature of the set temperature. It is possible to prevent the temperature from lowering. For example, by setting the start time of the operation in the combustion heating mode at the time set at the time of getting up, comfortable heating can be obtained at the time of getting up.

Further, the control section 8 may have a function of automatically switching to the operation in the heat storage heating mode after the operation in the combustion heating mode is stopped (see FIG. 8).

In this case, after the operation in the combustion heating mode is stopped by the operation of the control unit 8, the operation is automatically switched to the heat storage heating mode, the burner 2 stops the operation, and the blower 4 continues the operation. Since the heat storage unit 9 is dissipated in the state, the amount of heat remaining in the heat storage unit 9 can be effectively used, and the decrease in the room temperature is more gradual than when no heat amount remains in the heat storage unit 9. Become.

In addition, in the operation in the heat storage heating mode, the control section 8 has a function of changing the air volume, so that the heat exchange amount of the heat storage section 9 can be kept constant (see FIG. 9).

In this case, in the heat storage heating mode, the control unit 8 detects the temperature of the heat storage unit 9 by the heat storage unit sensor 10 and calculates the exchanged heat amount, and adjusts the air flow of the blower 4 so that the heat amount becomes constant. Since it is controlled and changed, the heat storage unit 9
Even if the heat storage amount decreases due to heat radiation, the heat exchange amount becomes constant and the room temperature can be kept constant.

Further, in the heat storage heating mode, the control unit 8 may have a function of changing the air volume in order to keep the temperature of the hot air exchanged by the heat storage unit 9 constant (FIGS. 10 and 10). 11).

In this case, in the heat storage heating mode, in order to keep the temperature of the room air exchanged by the heat radiation of the heat storage unit 9 constant, the control unit 8 controls the temperature of the hot air to be blown out by the hot air sensor 11. By performing the detection, the amount of air that exchanges heat with the heat storage unit 9 is changed, and even if the temperature of the heat storage unit 9 decreases due to heat radiation, the heat is exchanged at a substantially constant temperature, and control is performed so that comfortable heating is obtained.

[0042]

According to the present invention, as described above, during sleep, heating can be performed only by radiating heat from the heat storage unit without burning the burner. No sound is generated, and there is no need to ventilate room air, so that comfortable heating can be obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a heat storage combustion heating apparatus according to an embodiment of the present invention.

FIG. 2 is an operation characteristic diagram of the heat storage and heating device.

FIG. 3 is another operation characteristic diagram of the heat storage and heating device.

FIG. 4 is another operation characteristic diagram of the heat storage and heating device.

FIG. 5 is another operation characteristic diagram of the heat storage and heating device.

FIG. 6 is another operation characteristic diagram of the heat storage and heating device.

FIG. 7 is another operation characteristic diagram of the heat storage and heating device.

FIG. 8 is another operation characteristic diagram of the heat storage and heating device.

FIG. 9 is another operation characteristic diagram of the heat storage and heating device.

FIG. 10 is a side sectional view showing a modified example of the heat storage combustion heating device according to the present invention.

FIG. 11 is an operation characteristic diagram of the heat storage and heating device.

FIG. 12 is a side sectional view of a conventional heat storage and heating device.

[Explanation of symbols]

 2 Burner 4 Blower 8 Control unit 9 Heat storage unit

Continuation of front page (72) Inventor Hiroshi Takeyama 1006 Kadoma Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-4-116343 (JP, A) JP-A-5-66465 (JP) , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24H 3/04 301-305 F24H 7/02 602

Claims (6)

(57) [Claims] 1. A combustion burner, a blower for circulating room air, a heat storage unit for heating and storing heat by the combustion burner, and a heat storage heating mode operation and a heat storage unit for heating room air by combustion of the combustion burner. And a control unit that can select an operation in a heat storage heating mode that heats indoor air by heat radiation of the heat storage combustion heating device, wherein the control unit heats and circulates indoor air by combustion of a combustion burner and operation of a blower. The operation in the combustion heating mode is shifted to the operation in the heat storage heating mode in which the indoor air is heated and circulated by the heat radiation of the heat storage unit and the operation of the blower, and the operation of the blower is stopped at a predetermined temperature of the heat storage unit in the operation in the heat storage heating mode. A heat storage combustion heating device characterized by having a function of causing the heat storage combustion heating device. 2. A combustion burner, a blower for circulating room air, a heat storage unit heated and stored by the combustion burner, and a combustion heating mode operation and the heat storage unit for heating room air by combustion of the combustion burner. And a control unit capable of selecting an operation in a heat storage heating mode for heating indoor air by heat radiation of the heat storage combustion heating device, wherein the control unit operates in a heat storage combustion mode in which heat is stored in the heat storage unit by combustion of a combustion burner. A heat storage combustion heating device having a function of selecting and controlling the combustion of the combustion burner to maintain the heat storage unit at a predetermined temperature. 3. A combustion burner, a blower that circulates indoor air, a heat storage unit that is heated by the combustion burner and stores heat, and a combustion heating mode operation and the heat storage unit that heat room air by burning the combustion burner. And a control unit capable of selecting an operation in a heat storage heating mode for heating indoor air by radiating heat, wherein the control unit controls combustion of a combustion burner to maintain heat storage of the heat storage unit at a predetermined temperature. A function of shifting from operation in the heat storage combustion mode to operation in a heat storage heating mode in which room air is heated and circulated by heat radiation of the heat storage unit and operation of the blower. 4. A combustion burner, a blower that circulates indoor air, a heat storage unit that is heated by the combustion burner and stores heat, and a combustion heating mode operation and the heat storage unit that heat room air by burning the combustion burner. And a control unit capable of selecting an operation in a heat storage heating mode for heating indoor air by radiating heat, wherein the control unit controls combustion of a combustion burner to maintain heat storage of the heat storage unit at a predetermined temperature. A heat storage combustion heating device having a function of reserving a start time of an operation in a heat storage combustion mode to be performed. 5. A combustion burner, a blower that circulates indoor air, a heat storage unit that is heated by the combustion burner and stores heat, and a combustion heating mode operation and the heat storage unit that heat room air by burning the combustion burner. And a control unit capable of selecting an operation in a heat storage heating mode for heating indoor air by radiating heat, wherein the control unit controls combustion of a combustion burner to maintain heat storage of the heat storage unit at a predetermined temperature. A heat storage combustion heating device having a function of shifting to operation in a heat storage heating mode in which room air is heated and circulated by heat radiation of the heat storage unit and operation of the blower at a predetermined temperature of the heat storage unit in the operation of the heat storage combustion mode. . 6. A combustion burner, a blower for circulating room air, a heat storage unit heated and stored by the combustion burner, and a combustion heating mode operation and the heat storage unit for heating room air by combustion of the combustion burner. And a control unit capable of selecting an operation in a heat storage heating mode for heating indoor air by radiating heat, wherein the control unit controls combustion of a combustion burner to maintain heat storage of the heat storage unit at a predetermined temperature. After the operation in the heat storage combustion mode, the operation of the combustion heating mode in which the indoor air is heated and circulated by the combustion of the combustion burner and the operation of the blower is selected, and a function to reserve the start time of the operation in the combustion heating mode and the indoor temperature. A heat storage combustion heating device comprising: