JPH031020A - Fast heating method and hot air complex type stove - Google Patents

Abstract

PURPOSE:To improve a fast heating characteristic while keeping a comfortable feeling by a method wherein an operation changing-over temperature point between a hot air heater and a radiation stove is changed and a length of a fast heating time by the hot air is adjusted in response to a room temperature at that time. CONSTITUTION:In case that a heating operation is carried out by a hot air complex type stove having a radiation stove 1 at its upper part and a hot air heater 2 having a larger capacity as compared with that of the stove 1 at its lower part, three temperatures, i.e. a low set temperature TL, a middle set temperature TM and a high set temperature TM having temperature differences of several deg.C are set, compared with the room temperature. During a period starting of an operation to an intermediate time tM to a warming-up time tw required for a warming-up operation, a hot air heater 2 is operated under its full capability when the room temperature is less than a high set temperature TN and in turn if it exceeds the high set temperature TM, the radiation stove 1 is operated. In turn, during a period exceeding a predetermined intermediate time tM and reaching the warming-up time tw, the hot air heater 2 is operated under a full capability when the room temperature is lower than the middle set temperature TM.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a rapid heating method that can shorten the rise time at the start of heating and improve rapid heating performance, and a method suitable for use in implementing the method. Concerning the configuration of a hot air composite stove.

(Conventional technology) Radiation stoves heat the object by emitting heat rays, which has the advantage of quickly raising the temperature of the object, but they also raise the temperature of the surrounding air to uniformly heat the room. Because it takes a considerable amount of time to heat, it is used exclusively for local heating.

Therefore, hot air combination stoves have recently been used that operate by heating with a hot air heater at the start of heating when the room temperature is extremely low, and then switching to heating with an irradiation stove at the end of warming up.

This hot air composite stove has a radiant stove on top and a hot air heater on the bottom inside the casing, and during warming-up operation, warm air is blown out from the blow-off grill installed at the bottom of the casing to bring the room temperature to, for example, 16°C. When the temperature rises to such an extent, the capacity of the hot air heater is halved, and the radiation stove is switched to heating operation and switched to parallel operation, and when the room temperature rises further and reaches, for example, 19℃, the radiation stove is switched to independent operation and steady operation is performed. This can be done efficiently using a radiation stove.

(Problem to be Solved by the Invention) A heater that utilizes the advantages of hot air heat and radiant heat is a suitable device for small homes, offices, etc.; During transitional operation in which a wind heater and a radiation stove are used together, the expected heating effect cannot be obtained and it takes a considerable amount of time for the room temperature to rise, resulting in a long warming amp time and a problem with rapid heating. There was a problem with this.

Furthermore, as the hot air heater operates until it reaches steady operation, heat convection occurs within the casing due to the hot air heater, and as a result, the temperature at the top of the front of the main unit becomes considerably high, causing equipment such as the operating section installed on the top side to Another problem was that the temperature rose due to heating, which was dangerous.

The present invention provides a rapid heating method that can overcome the various problems that have arisen with such conventional devices and can increase the speed of heating. To provide a hot air composite type stove which has a structure suitable for use in the implementation of the present invention and which is excellent in safety by suppressing the temperature rise within the main body casing, and which eliminates the drawbacks of the conventional stove. The purpose of the invention is to try to make it tangled.

(Means for Solving the Problems) As is clear from the embodiments shown in the accompanying drawings, the invention of claim 1 relates to a rapid heating method using a hot air composite stove, and in particular relates to a rapid heating method using an irradiation stove. The temperature of several degrees Celsius is extremely high when heating is performed by an integrated hot air composite stove, which has (1) at the top and a hot air heater (2) with a larger capacity than the stove (1) at the bottom. Three temperatures, low set temperature (TL), intermediate set temperature (TM), and high set temperature (TM), which have differences between them, are set and compared with room temperature, and the warming-up time (warming-up time required from the start of operation to warming-up) is calculated. Until the predetermined intermediate time (ts ) on the way to tW), when the room temperature is below the high set temperature (TM), the hot air heater (2) is operated at full capacity, and when the high set temperature (TM) is exceeded, the hot air heater (2) is operated at full capacity. On the other hand, when the room temperature is below the intermediate set temperature (TM), the hot air heater is operated until the warm-up time (tW) is reached after the predetermined intermediate time (tM) has passed. (2) at full capacity, and the intermediate set temperature (T8
), the radiation stove (1) is operated, and in steady operation after the warming amplifier time (tW), when the temperature is below the low set temperature (TL), the hot air heater (2) is operated at full capacity. When the low set temperature (TL) is exceeded and the middle set temperature (TM) is exceeded, the hot air heater (with reduced capacity) is activated.
2) and the radiation stove (1) are operated at the same time, and when the intermediate set temperature (TM) is exceeded, the radiation stove (11) is operated to quickly raise the room temperature.

Next, the invention of claim 2 relates to a hot air composite type stove, on a stand base (4) equipped with a blow-off grill (6) on the front side,
A vertically elongated main body casing (3) with an upper air outlet (5) provided at the top of the front is assembled and erected, and the bottom of the main body casing (3) and an air outlet grill (6) are installed in the stand (4).
A hot air heater (2) is formed by providing an air blowing duct αω extending between the air blowing duct αω and disposing a ceramic heater aη inside the air blowing duct αΦ. is a combination of a ceramic sheathed heater (7) and a partition plate (8) on its back that also serves as a reflector,
Alternatively, a radiation stove (1) formed by a combination of a sheathed heater and a partition plate (8) on the back thereof is placed on the front side of the upper part, facing the partition vi+8), and the upper air outlet (5). Cool air passages (9) connected to the fan Q are provided at the rear sides of the radiation stoves (1), and
l is arranged below the radiation stove (1) and the cold air passage (9), and the blowing part side provided at the lower part of the housing (11) of the fan αΦ is connected to the ventilation duct 1-(lω, and , the suction part (13) faces the suction grill α scratch on the back side of the main body casing (3), and the air outlet α for feeding a part of the blown air to the cold air passage (9) is arranged in the housing. (11), and the main body casing (3) further includes a device for selectively controlling the radiation stove (1) and the hot air heater (2) individually or simultaneously, and allowing adjustment of their respective heating capacities. It is characterized by the addition of an operating section a!9.

Furthermore, the invention according to claim 3 is characterized in that the invention according to claim 2 is provided with a radiation direction variable radiation stove (1) that can adjust the radiation direction in any direction between the horizontal direction and the diagonally downward direction. shall be.

(Function) In the present invention, during the warm-up time (tW) of, for example, 5 minutes after the start of operation, the hot air heater (2) performs heating operation at full capacity, so that the indoor temperature can be quickly raised.

At that time, for example, a predetermined intermediate time of 3 minutes (1*
), when the high set temperature (TM) reaches, for example, 19°C, the radiation stove (1) is switched to heating operation, and after the predetermined intermediate time (el) has elapsed, the temperature increases until the warming-up time (t, ). Then, the intermediate set temperature (rx) reaches, for example, 16°C and the heating operation of the radiation stove (1) is switched to operation a. Therefore, depending on how the room temperature changes over time from the start of operation, the hot air heater (2) is switched on. By automatically changing the time of rapid warming operation, the start-up time can be made faster without sacrificing comfort.

The steady operation after the warming-up is completed can be an operation that promotes switching to the radiation stove (1) with high heating efficiency while trying to raise the room temperature to the set temperature as quickly as possible.

The invention of claim 2 has a structure that enables hot air to be blown to the feet and the upper body to be resistant to heat, thereby sufficiently maintaining comfort, and at the same time, during hot air heating operation, the indoor air sucked by the fan QΦ. A part of the air is distributed to the cold air passage (9) and the radiant stove (
While cooling the partition plate (8) of 1), the air is blown out of the main body casing (3) through the upper air outlet (5), thereby suppressing the temperature rise inside the main body casing (3) and lowering the temperature of the internal equipment. It can prevent overheating.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 and FIG. 2 are an external perspective view and a sectional right side view of a stove according to an embodiment of the present invention, and this hot air composite stove has an external structure equipped with a blowout grill (6) on the front side. A vertically elongated main body casing (3) with an upper air outlet (5) provided at the top of the front is assembled and erected on the stand base (4), and inside the stand base (4) there is a A duct QI9 is provided, and the duct Q[O extends in an L shape between the bottom of the main casing (3) and the outlet grille (6), and a honeycomb plate shape, for example, is provided in the middle part of the ventilation duct (16). A hot air heater (2) is formed by this heater αη, a blower duct αQ, and a fan a (to be described later).

On the other hand, inside the main body casing (3), there are two heater units arranged above and below, which are a combination of a round bar-shaped ceramic sheathed heater (7) and a partition plate (8) installed on the back that also serves as a reflector. The radiant stove (1) formed in parallel is arranged on the front side of the upper part, and the partition plate (8), the back plate of the main body casing (3), and the partition plate (8)
) A cold air passageway (9) surrounded by a heat shield plate Q81 installed obliquely above the cooling air passageway (9) and connected at its upper end to the upper air outlet (5).
is arranged on the rear side of the radiation stove (1).

Furthermore, a fan α in the shape of, for example, a sirocco with a horizontally arranged rotating shaft is disposed in a location below the radiation stove (1) and the cold air passage (9) in the main body casing (3). The blowout part (2) provided at the bottom of the housing Ql) of α is connected to the upper end of the air duct Qj9, and the suction part α provided at the rear of the housing is connected to the back of the main casing (3). The intake grille opens on the side and faces the α spit.

The fan α [is provided with an air outlet (14) consisting of a small opening in the upper part of the housing αυ, and this air outlet α
The air is communicated with the lower end of the cold air passage (9).

In the figure, Qj is an operation unit consisting of a control board, switches that can be operated from the outside, etc., and has a control function to control the operation of the radiation stove (1) and hot air heater (2). There is.

In addition, (2fh is a filter (21) installed in the suction grill α) is a room temperature detection thermistor installed in connection with the suction part α of the fan M, and (22) is a front surface installed in the front of the radiation stove (1). Each shows a guard.

A hot air combination type stove with a ridge configuration is designed to allow automatic control of heating operation at one operation part.This can be summarized using the characteristic diagram in Figure 3. In a circuit, a low set temperature (TL) having a temperature difference of several degrees Celsius, for example 3 degrees Celsius, is used, for example, 13 degrees Celsius.
℃, an intermediate set temperature (TM4), for example 16°C, and a high set temperature (T,), for example 19°C, are set as reference values.On the other hand, in the time setting circuit, the temperature required for warming up from the start of operation is set as a reference value. A predetermined warming amplifier time (t8), for example, 5 minutes, and this time (tW
) is a predetermined intermediate time (
t,) For example, two times, 3 minutes, are determined as reference values.

They are winter time (tM) and each temperature (TL), (T
The radiation stove (1) and the hot air heater (
2) is started and stopped as explained below, but for example, if the capacity of the radiation stove (1) is set to 350,
The capacity is set to be 1200-, which is considerably larger than this.

(A) In the early stage of warming up (0<t≦
t, 4), (a) Operate the hot air heater (2) at full capacity of 1200- at room temperature (T)≦high set temperature (Tll).

(II) Room temperature > At high set temperature (TM), switch to 350-operation of the radiation stove (1).

<II) In the latter half of warming up (t14
<t: 5t), (a) Operate the hot air heater (2) at full capacity of 1200- at room temperature (T) ≦ intermediate set temperature (T, ).

(Il+) Room temperature (T)> Intermediate set temperature (TM), switch to 350- operation of the radiation stove (11).

(C) In the case of steady operation (1>1w), (A) Room temperature (
T)≦Low set temperature (TL) and warm air heater (2) to 12
Operate at full capacity with 0 open.

However, this operation is for abnormal situations where the load is extremely large, such as when the door is opened for ventilation.

(0) When low set temperature (Tt) < room temperature (T) ≦ intermediate set temperature (rx), the hot air heater (2) is operated with its capacity reduced to, for example, 600 -, and at the same time the radiation stove (1) is operated at 350 -. Let them drive together.

(c) Room temperature (T)> At the intermediate set temperature (TM), the hot air heater (2) is stopped and the radiation stove (1) is switched to only 350° operation.

By performing automatic operation control in this manner, the hot air can sufficiently compensate for the slow rise in room temperature and the long time it takes for heating to start up in the heating-proof system, thereby improving heating speed.

Moreover, since the rapid heating time using hot air is changed depending on the state of temperature fluctuation during warming-up, it is possible to maintain sufficient comfort while performing rapid heating.

Furthermore, while the hot-air heater (2) is operating, the illustrated stove allows a portion of the low-temperature indoor air to flow into the cold-air passageway (9), causing the upper part of the interior of the main body casing (3) to become warmer due to convection heat. Since rising can be prevented, it is possible to protect each instrument, especially around the operating section, from overheating.

Next, FIGS. 4 and 5 show main parts of an embodiment according to the invention of claim 3, in which a partition plate (8) which also serves as a reflection plate
is a fixed type, and a movable reflector (23) is further installed inside this partition plate (8), and a ceramic seeder heater (7) is installed.
The reflection plate (23) is pivotably supported on the partition plate (8) so as to be swingable up and down about the axis of the reflector plate (23).
The middle part of the lever (24) is engaged with the swing angle adjusting lever (24) supported by the side plate of the partition plate (8).
) so that the radiation direction of the reflector plate (23) can be directed in any direction between the horizontal direction and an appropriate angle diagonally downward by sliding the knob fixed to the upper end of the reflector plate (23) back and forth. The angle can be adjusted manually.

Although not shown in the figure, in addition to manual operation, there are also those with a structure that allows mechanical swinging by remote control using a small motor, and those that are linked to the independent heating operation of the radiation stove (1). A configuration in which the direction of the reflection plate (23) is automatically switched is conceivable, and such modifications are also included within the scope of the present invention.

By making the radiation direction of the radiation stove (1) variable, as shown in FIGS. 6 to 8, the radiation direction of the radiation stove (11) and the hot air heater (
When operated in parallel with 2), it is possible to heat the entire body of a nearby person from the feet to the upper body at the same temperature (see Figure 6), and when the radiant stove (1) is operated independently, Because heating may cause cold feet (
(See Figure 7), by changing the radiation direction diagonally downward (See Figure 8), comfortable heating for people with cold heads and warm feet can be achieved. Heating is possible.

(Effects of the Invention) The present invention has the configuration and functions as explained above, and the hot air heater (2) sufficiently compensates for the slow rise of the temperature in the radiation stove (11). This can improve heating speed.

Moreover, depending on the degree of temperature change during this warming-up, the hot air heater (2) and the radiation stove (1) can be used.
Since the temperature point at which the operation is switched is changed, the time for rapid heating with warm air can be adjusted depending on the room temperature at that time, making it possible to increase the speed of heating while maintaining comfort.

Furthermore, since the invention of claim 2 has a structure in which a part of the indoor air flows into the cold air passageway (9) while the hot air heater (2) is in operation, the convection of the heat generated on the side of the hot air heater (2) is It becomes possible to suppress the rising air current and prevent the temperature rise in the upper part of the main body casing (3), and it is possible to provide a highly safe device by providing temperature protection for various components present in the operating section and the like.

Furthermore, by making it possible to change and adjust the radiation direction of the heat rays of the radiant stove (1) diagonally downward, it is possible to easily provide a multi-purpose stove that can perform various types of heating that can meet the demands of the time, such as temporary heating. It is possible.

[Brief explanation of the drawing]

1 and 2 are an external perspective view and a cross-sectional right side view of a composite stove according to an example of the present invention, and FIG. 3 is a characteristic diagram showing the room temperature-time relationship for explaining the method of the present invention. , 4th
5 and 5 are a front view and a right side view showing the main parts of a composite stove according to an embodiment of the present invention, and FIGS. 6 to 8 are explanatory diagrams of vertical temperature distribution according to operating conditions. (1)...Radiation stove, (2)...Hot air heater, (3)...Body casing, (4)...Stand base, (5)...Upper outlet, (6)... ...Blowout grill, [7]...Ceramic sheathed heater, (8)...Partition plate, (9)...Cold air passage, α (to)...Fan, 0υ...Housing, Sub ...Blowout part, αt...Suction part, (Foundation)...Blowout outlet, αri...Operation part, (16)...Blower duct, αη...Ceramic heater. Second flash warming function

Claims (1)

[Claims] 1. Heating by an integrated hot air composite stove that has a radiation stove (1) in the upper part and a hot air heater (2) with a larger capacity than the stove (1) in the lower part. When operating, use a low set temperature (with a temperature difference of several degrees Celsius).
T_L), intermediate set temperature (T_M) and high set temperature (T
_M) are set and compared with the room temperature, and from the start of operation until a predetermined intermediate time (t_M) on the way to the warm-up time (t_W) required for warming up, the room temperature is lower than or equal to the high set temperature (T_M). In this case, operate the hot air heater (2) at full capacity and set the high temperature (T_M).
When the temperature exceeds the temperature, the radiation stove (1) is operated, while the room temperature remains at the intermediate set temperature (t_W) until the predetermined intermediate time (t_M) reaches the warm-up time (t_W).
T_M) When the temperature is below, the hot air heater (2) is operated at full capacity, and when the intermediate set temperature (T_M) is exceeded, the radiation stove (1) is operated, and the warm-up time (t_W) is
During steady operation past the low set temperature (T_L), the warm air heater (2) is operated at full capacity when the temperature is below the low set temperature (T_L).
When the temperature exceeds the intermediate set temperature (T_L) and is below the intermediate set temperature (T_M), the hot air heater (2) with reduced capacity and the radiation stove (1) are operated at the same time, and when the intermediate set temperature (T_M) is exceeded, the radiation heater A rapid heating method characterized by quickly raising the room temperature by operating a stove (1). 2. Stand base (4) with outlet grill (6) on the front
On top, a vertically long main body casing (3) with an upper air outlet (5) provided at the upper front is assembled and erected, and a stand base (
4) is provided with an air duct (16) extending between the bottom of the main body casing (3) and the outlet grille (6), and a ceramic heater (17) is installed in the air duct (16).
16) to form a hot air heater (2), while the main casing (3) includes a ceramic sheathed heater (7) and a partition plate (
8) or a combination of a sheathed heater and a partition plate (8) on the back thereof.
1) on the front side of the upper part, and a cold air passage (9) facing the partition plate (8) and connected to the upper air outlet (5) on the rear side of the radiation stove (1). established respectively in
Further, a fan (10) is arranged below the radiation stove (1) and the cold air passage (9), and the blowing part (12) provided at the lower part of the housing (11) of the fan (10) is connected to the blower duct. (16), and makes the suction part (13) face the suction grill (19) on the back side of the main casing (3), and sends a part of the blown air to the cold air passage (9). The air outlet (14) for
), and the main body casing (3) further includes an operation unit for selectively controlling the radiation stove (1) and the hot air heater (2) individually or simultaneously, and adjusting the heating capacity of each individual. (15) A hot air composite type stove characterized by being attached with (15). 3. The hot air composite stove according to claim 2, wherein the radiation stove (1) is of a radiation direction variable type that can adjust the radiation direction of the heat rays in any direction between the horizontal direction and the diagonally downward direction.