JPS60155833A - Warm-air heating machine - Google Patents

Abstract

PURPOSE:To improve a temperature difference between the upper and lower parts of a room remarkably by a method wherein first blow-off port, which blows low-temperature warm-air having a temperature higher than the temperature of indoor air and lower than high-temperature warm-air blown off forward and downward from the second blow-off port, is provided above the second blow-off port which blows off the high-temperature warm-air forward and downward while the blow-off angle of the first blow-off port is made larger than the same of the second blow-off port. CONSTITUTION:The first blow-off port 9 is provided on the front surface of a casing 1 at a place above the second blow-off port 8. The blow-off angle A of the first blow-off port 9 is determined so as to be larger than the same angle B of the second blow-off port 8. A part of the indoor air, which is sucked from a suction port 2, becomes high- temperature air by a combustion unit 13 and is blown off from the second blow-off port 8 toward a floor 7 downward obliquely. The other part of the indoor air is blown off from the first blow-off port 9 toward the floor 7 downward obliquely, therefore, rising of the high-temperature warm-air, blown off from the second blow-off port 8, is suppressed by the low-temperature warm-air, blown off from the first blow-off port 9 and having slightly warm temperature, and may arrive at a distant place along the surface of the floor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a hot air heater that improves comfort in an indoor environment.

[Prior art]

Conventionally, there was a device of this type as described in JP-A-52-152644 (shown in Fig. 1). In this figure, (1) is the case of a floor-standing hot air heater, and (2) is the suction port provided on the top surface of this case CI+, (3) is the blower provided inside the case, (4) is the heat exchanger provided inside the case (11), and (5) is the heat exchanger provided inside the case (11). A first outlet that blows out air that has not passed through the exchanger (4); (6) is a second outlet that blows out air that has passed through the heat exchanger provided at the F-most part;
(7) is the floor.

In the hot air heater configured as above, the blower (
3) and a part of the indoor air sucked in from the suction port (2) by the operation of the heat exchanger (4) is blown out into the room from the first outlet (5) as it is, and the remaining air is heat exchanged. The air passes through the container (4), becomes high temperature air, and is blown into the room from the second outlet (6). Therefore, the indoor air blown from the first outlet (5) suppresses the high-temperature air blown out from the second outlet (6), making it possible for the high-temperature air to travel far along the floor surface. However, there were disadvantages such as making residents uncomfortable due to the draft feeling caused by the temperature difference between the room temperature air and the high temperature air.

[Summary of the invention]

This invention was made to eliminate the drawbacks of the conventional ones as described above, and includes a second outlet that blows out high-temperature air that has passed through a heating section such as a combustor or a heat exchanger toward the floor surface; A first air outlet that blows out weakly warm air whose temperature is higher than the indoor air temperature and lower than the high temperature air is provided above the second air outlet, and air is blown from each air outlet. The first air outlet has a larger air outlet than the second air outlet, so that the air outlet angle formed by the direction of the air outlet and the horizontal line is larger than that of the second air outlet.

By blowing out the mildly warm air along the upper side of the high temperature air, the rise of the high temperature air is suppressed and the high temperature air reaches a long distance along the floor surface, reducing the difference in temperature between the top and bottom of the room and reducing the draft feeling. This provides a hot air heater with increased comfort.

[Embodiment J of the Invention The details of this invention will be explained below according to the illustrated embodiments. FIG. 2 is a cross-sectional view of a floor-standing hot air heater showing an embodiment of the present invention, in which (1) is the housing, (2) is the suction port provided on the back of the housing (11), and (3) ) is a blower installed on the back side of the housing, and (7) is the floor, which is similar to the conventional device shown in Figure 1. (8) is a blower installed on the back of the housing (1).
) The second air outlet provided in the front of the.

(9) is the first air outlet provided above the second air outlet on the front surface of the housing (1), and these are structured so that even if they fall down, the airflow is blown out diagonally upward. There is. Type 0 is a partition plate that is a relatively good thermal conductor and partitions the air flow to the second air outlet (81) and the air flow to the first air outlet (9). (An air path formed by I+ and az is a heating chamber formed at the lower part of the air path a11 by the partition base and the casing (1).

031 is a combustion section as a heating section provided in the heating chamber O3 and uses oil or gas as fuel, and Q41 is a blower for combustion. Note that the blowing angle A formed by the blowing direction of the mildly warm air blown out from the first blowing outlet (9) and the horizontal line is the same as the blowing direction of the hot air blowing out from the second blowing outlet (8). Each loop is set so that it is larger than the blowout angle B made with the horizontal line: < (, υ.

The angle of haze is determined. In this embodiment, as shown in FIG. 3, the blowing angle A is 30°, and the blowing angle B is 2°.
0°, and is configured to increase by 10°.

In the floor-standing hot air heater configured as described above, when operation is started, gas or oil is combusted in the combustion section (1) by the indoor air taken in by the combustion blower 041. Then, the combustion in this combustion section 0 The heating chamber O2 is heated.The air passage 0υ is also heated through the partition wall made of a good thermal conductor.Then, the indoor air sucked in from the suction port (2) provided on the back of the housing (1) A part of the room air becomes high-temperature air due to the combustion part I and is blown diagonally downward toward the floor (7) from the second outlet (8).The rest of the indoor air becomes relatively hot due to the combustion part Partition plate with good conductivity
The air passes through the heated air passage αυ through 11, becomes considerably warmed air, and is blown out obliquely downward from the first outlet (9) toward the floor (7), so that the second outlet (8) The rise of the higher temperature air blown out is suppressed by the slightly warmer slightly warm air blown out from the first air outlet (9), and the high temperature air can reach a long distance along the floor surface.

FIG. 4 shows the measurement results of the indoor temperature distribution characteristic a by this embodiment and the indoor temperature distribution characteristic a by the conventional device.Compared to the conventional device, the temperature near the floor surface increases, Since the temperature in the upper part of the room decreases, the temperature difference between the upper and lower parts of the room becomes very small.

The blowout angle A of this first blowout port (9) and the second blowout port (
If the difference from the blowing angle B from 81 is zero, that is, the same,
The temperature difference between the upper and lower parts of the room is not improved much, and if the air outlet angle A of the first air outlet (9) is 25 degrees or more larger than the air outlet angle B of the second air outlet (8), the indoor upper and lower temperature difference will be reduced. Although the problem is improved, the floor surface temperature increases, leading to deterioration of the flooring material. As a result of various experiments, a range of 5 to 25 degrees was found to be appropriate for this blow-off angle difference A-B.

In addition, since the air blown out from the first outlet (9) is slightly warmed, the occupant feels a draft sensation due to the warm air blown out from the second and first outlet (91). Less is.

In addition, although the said Example demonstrated the case where the combustion part was arrange|positioned in the heating part, a heat exchanger may be used and the same effect as the said Example is produced.

Furthermore, although the partition plate 001 has been described as having relatively good heat conduction, it is made of a heat insulating material and has an open section in a portion.

The high temperature air in the heating chamber 021 may be sucked into the air passage 0υ.

Initially, in the above embodiment, a floor-standing type was shown, but a wall-mounted type or a window-mounted type may also be used. However, even if it is placed in the lower part of the housing fII, the same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, the upper part of the second outlet that blows out high-temperature air in a forward and downward direction is placed at a temperature higher than the indoor air temperature and lower than the high-temperature air blown out from the second outlet. A first outlet is provided which blows out the weak part wind in the same direction downward in the front direction, and the blowing angle A of the weak part wind blown from the first outlet is changed to the high temperature wind which is blown out from the second outlet. Since the blowout angle is wider than B, it is possible to suppress the rise of high-temperature wind by the weak part wind, and make the high-temperature wind reach far along the floor surface, which greatly improves the temperature difference between the top and bottom of the room. I can do it.

Furthermore, since the temperature difference between the high temperature wind and the weak wind is small, a highly comfortable living environment with relatively little/good draft feeling can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional floor-standing hot air heater and its blowing state, Fig. 2 is a sectional view of a floor-standing hot air heater showing an embodiment of the present invention, and Fig. 3 is a sectional view showing the hot air blowing state. FIG. 4 is an enlarged view of a portion of the room, and FIG. 4 is a characteristic diagram of the vertical temperature distribution inside the room. In the figure, (1) is the housing, (2) is the inlet, (3) is the blower, (7) is the floor, (8) is the second outlet, (9) is the first outlet, +H1l is the partition plate, 01) is the nozokuro,
(12 is the heating chamber, +131 is the heating section, 041 is the combustion blower, +151. (161 is the louver) In each figure, the same reference numerals indicate the same or corresponding parts. Agent Masuo Oiwa 1st Figure 2 Figure 3

Claims (2)

[Claims] (1) A second air outlet is provided on the front F section of the housing and blows out heated high-temperature air forward and downward; a second air outlet is provided above this second air outlet; a first air outlet that blows out a weak wind that is higher in temperature than the air temperature and lower in temperature than the high temperature air blown out from the second air outlet in a forward and downward direction;
The suction port provided on the wall surface of the casing for sucking indoor air and the heating part provided inside the casing for heating the intake air are the same (provided inside the casing, the suction port is oscillated, the suction port is sucked from the suction port, and a blower that generates an air flow that blows out heated air from the air outlet, and the air blowing angle formed by the airflow direction that blows out toward the front F and the horizontal line is that the first air outlet is larger than the second air outlet. A warm air heater characterized by being larger. (2) The hot air heater according to claim 1, wherein the blowing angle of the first blowing outlet is 5 to 25 degrees larger than the blowing angle of the second blowing outlet.