JPS5828505B2 - hot air heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has a heat exchange device installed in the main body of a hot air heater, and continuously generates a large volume of high-temperature hot air through heat exchange with the heat exchange device. Even if the main unit is heated, the entire surrounding wall of the main unit is reliably prevented from overheating that could cause a burn injury, and safe heating operation is achieved.At the same time, the ventilation function in the heating room is automatically controlled during hot air heating work. This article relates to a warm air heater that is intended to be used for a long period of time.

Conventionally, as shown in FIGS. 10 and 11, a heat exchange device ck consisting of a combustion chamber d and a heat radiation chamber e is installed inside a main body a with a blow window opened on the front side via a ventilation path g. death,
By connecting a burner h to one side of the combustion chamber d and heating the combustion chamber d and the heat radiation chamber e according to the amount of combustion,
The cold air flowing through the ventilation passage g around the heat exchanger C by the pressure blowing action of the blower f is quickly turned into warm air by the heat exchange action and is blown into the room through the blower window, thereby efficiently heating the room with warm air. A hot air heater that can perform
It is described in Japanese Patent No. 44956 and is publicly known.

By the way, in the above-mentioned known hot air heater,
Since a direct heat exchange device C is installed inside the main body a via the ventilation path g'r, in order to obtain hot air with a large amount of high temperature,
When heat exchange device C equipped with a burner with a large combustion amount is used, the heating effect of the radiant heat from heat exchange device C not only heats the three peripheral walls of the main body above the required temperature, but also the earthen wall of main body A. In order to prevent this, a burner with a small combustion rate was used to perform the heat exchange function because the burner becomes particularly hot and poses a risk of causing an unexpected burn injury.

As a result, it is not possible to continuously obtain a large amount of high-temperature hot air, and no improvement in efficiency can be expected in terms of heating effect.

In addition, when operating this type of hot air heater,
Since the combustion air for the burner is obtained from inside the room, as the burner is operated for a long time, the room gradually becomes deficient in oxygen and incomplete combustion occurs, reducing combustion efficiency and making it easier for hot air to reach high temperatures. cannot be achieved.

Therefore, during operation, it is necessary to frequently open windows and replenish fresh outside air into the room in order to exchange the unclean air in the room, and as a result, the warmed room is cooled by introducing cold outside air. Unfortunately, as a result of the cooled outside air being supplied to the burner as combustion air, the combustion efficiency is further deteriorated, resulting in drawbacks such as a reduction in the heating effect.

Therefore, in order to solve the drawbacks of the above-mentioned known hot-air heaters, the present invention divides the inside of the main body with a partition plate, extends the interior from the upper stage to the lower stage, and sequentially forms a fume chamber, a heat exchange chamber, and an oil storage tank. In addition, the front, rear, and upper and lower sides of the fumarole chamber and heat exchange chamber, where the high-temperature combustion flames flow along the curved flue, are provided with a front cooling passage and a rear cooling passage through which the cooling air generated in the heat exchange chamber can freely flow. A cooling passage and upper and lower side cooling passages are arranged to prevent the peripheral wall of the main body from being overheated to a temperature that would cause burns, no matter how highly efficient the burner performs the heat exchange action. In addition, the air used for air cooling is also blown into the room as warm air, and even with a small hot air heater, the indoor heating effect is further improved by continuously blowing out hot air with high temperature and large air volume. Perhaps because of this, the chimney that discharges the combustion flames outdoors is concentrically arranged with an intake cylinder that communicates the indoors with the outdoors, so that indoor ventilation can be used to operate the hot air heater. The purpose of the present invention is to provide a hot air heater that can automatically operate according to the conditions, thereby preventing as much as possible an unnecessary drop in indoor temperature and a drop in the temperature of the combustion air supplied to the burner, thereby promoting more effective combustion. That is.

In view of the above, in order to easily achieve the above object, the present invention has a structure in which the inside of the main body is partitioned by a partition plate, and a blow chamber with a blow window opened from the top to the bottom, a blower, and a fuel pump are coaxially connected. A heat exchange chamber housing a heat exchange device consisting of a burner directly connected to the top and a bent flue with a burner attached to the starting end and a bent flue connected to the chimney at the end, and an oil storage tank are successively installed. A hot air generation passage is provided around the circumference, the starting end side opening to the heat exchange chamber, and the terminal end side being connected to the fumarole chamber via a communication passage. A front cooling passage, a rear cooling passage, and upper and lower side cooling passages are provided, each of which communicates with the heat exchange chamber. is connected to the fumarole chamber through the communication port, and the terminal sides of the upper and lower side cooling air passages are connected to the blower window opened on the side of the main body to form a hot air heater, and the hot air heater is installed in the heating room. Moreover, the hot air heater has suction pipes arranged concentrically around the chimney extending outside to draw outside air into the heating room according to the operation of the blower. According to the above, even when a heat exchange device equipped with a burner with a large calorific value is installed in a heat exchange room to perform a high-efficiency room heating effect, it is possible to achieve a high rate of room heating, which is seen in conventional hot air heaters. It would be possible to eliminate such drawbacks, cool the entire peripheral wall of the main body accurately and quickly, completely prevent burns during heating work, and easily achieve good indoor heating.
The blower generates hot air, acts as a cold air, and operates the burner. At the same time, the air used for cooling the main unit is also slightly heated and blown into the heating room through the blower window, thereby increasing the air volume. Moreover, not only can odorless warm air be easily obtained even with a small hot air heater, but during heating work, the unclean air in the heating room can be replaced with fresh air by operating a blower. By automatically exchanging outside air and air pressure without changing the air pressure, the heating chamber can be kept clean at all times. At the same time, warm combustion air is constantly supplied to the burner to ensure complete combustion, which allows heating to a constant room temperature at all times. Make the most of your efforts.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the hot air heater according to the present invention will be described below as shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes a main body formed into a rectangular shape with a hollow interior made of decorative board. Inside the main body 1, partition plates 2 and 3 are laid horizontally, and a fumarole window 5 is opened on the front side in the upper stage. The fumarole chamber 4 is converted into a heat exchange chamber 6 in which the heat exchange device 1 is arranged in the middle
In addition, oil storage tanks 8 storing liquid fuel are sequentially arranged three-dimensionally in the lower stage.

The heat exchange device 7 arranged in the heat exchange chamber 6 is a blower 10.
It is composed of a burner 9 to which a fuel pump 11 is directly connected on the same axis, and a bent flue 12 looking into one end of the burner 9, and a chimney 13 is attached to the terminal end of the bent flue 12. .

Then, around the bent flue 12, there is a heat exchange chamber 6 on the starting end side.
A hot air generation passage 14''f opened so as to communicate with the hot air generation passage 14''f: is provided surrounding the hot air generation passage 14″f, and the terminal end thereof is connected to the fumarole chamber 4 via a communication passage 15.

A part of the hot air generation passage 14 is provided with a pipe-shaped flow pipe 16 disposed within the bent flue 12 to efficiently carry out heat exchange action.

17 is an electrical box installed on one side of the heat exchange room 6;
Reference numeral 8 denotes an intake window opened on the rear side of the heat exchange chamber 6.

The front and rear sides of the fumarole chamber 4 and the heat exchange chamber 6 configured as described above were opened so that their starting ends communicated with the heat exchange chamber 6, respectively, as shown in FIGS. 4 to 6. A bent front cooling passage 19 and a rear cooling passage 20 are provided, and the terminal side of the front cooling passage 19 is shown in FIGS. 5 and 8.
As shown in the figure, it is connected to the blow window 21 opened at the lower position of the blow window 5 to blow air toward the front side, and the end side of the rear cooling passage 20 is shown in FIGS. 6 and 9. It is connected to the fumarole chamber 4 through the communication port 22 as shown in FIG.

Front cooling passage 19 and rear cooling passage 20 as described above
Upper and lower side cooling passages 23 whose starting ends are connected to the heat exchange chamber 6 are also provided on the circumferential surfaces of the fumarole chamber 4 and the heat exchange chamber 6, that is, at upper and lower side positions other than those where the above-mentioned upper and lower side cooling passages 23 are provided. The terminal side is a blow window 24f opened on the side surface of the main body 1:
It communicates with the outside through.

Therefore, a front cooling passage 19, a rear cooling passage 20, and an upper and lower side cooling passage 23 are provided at the front, rear, upper and lower side surfaces of the main body 1 constituting the warm air warm-up A, and the cooling air flows through the main body wall. This is to prevent unnecessary overheating of the air conditioner and to increase the amount of hot air.

A combustion air inlet 25 is opened on the rear side of the burner 9 disposed in the heat exchange chamber 6, and a part of the combustion air blown by the blower 10 is introduced into the burner 9 to burn fuel. let

Further, the oil supply pump 11 is installed in the oil storage tank 8, and one end of the oil supply pipe 26 is connected to the oil supply pump 11, and the other end of the oil supply pipe 26 is connected to the burner 9.

The hot air heater A configured as described above is installed in the appropriately formed heating chamber B, and the chimney 13 is connected to the heating chamber B.
Let it extend outside.

Chimney 13 extending from heating room B to the outside through wall 2T
There are outside air intake holes 29 around the set position of the wall 27.
The intake pipe 2 is opened to the outdoors, and the other side is opened to the inside of the heating chamber B.
8 is provided concentrically with the chimney 13 so that an outside air inlet path 30 is formed, and when the blower 10 is in operation, outside air is sucked into the heating room B, thereby automatically ventilating the room. .

Note that the outside air inlet path 30 of the intake pipe 28 is connected to a suitable blocker 3.
1 can be occluded.

Next, its effect will be explained.

Now, the hot air heater A is installed in the heating room B, and the burner 9 is started with the chimney 13 extended outside.

Then, the blower 10 and the fuel pump 11, which are directly connected on the same axis, are both activated, and a part of the generated forced air is sent into the burner 9 through the combustion air inlet 25, and liquid fuel is sent into the fuel supply pipe. 26'! The oil is sent to the burner 9 through the pipe r, and the combustion flame is discharged outdoors from the chimney 13 while flowing into the field along the bent flue 12.

As a result, the hot air generation passage 14 through which a portion of the forced air superacidified by the blower 10 flows is heated by the bent flue 12 during the distribution process and becomes warm air of a considerable temperature, which is stored in the fumarole chamber 4. After that, the gas is ejected forward from the fumarole window 5 all at once to heat the room.

As described above, when a considerably high temperature is generated by the heat exchange device 7 housed in the main body 1, the decorative laminate around the main body 1 is heated due to radiant heat and is raised to a corresponding temperature.

However, in the present invention, a portion of the forced air generated by the rotating blower 10 in the heat exchange chamber 6 is transferred to the main body 1.
The decorative panel of the main body 1 is cooled and maintained at room temperature because it flows through the front cooling passage 19, the rear cooling passage 20, and the upper and lower side cooling passages 23 provided on the front side, rear side, and upper and lower side surfaces of the main body 1. , the above passages 19, 20, 23
The cold air flowing through the front cooling passage 19 becomes low-temperature wind during the distribution process, and the wind flowing through the front cooling passage 19 blows out forward from the blow window 21, and the wind flowing through the rear cooling passage 20 flows into the fumarole chamber 4 through the communication port 22. It enters the air and blows out forward from the fumarole window 5 along with the warm air.

The wind flowing through the upper and lower side cooling passages 23 is blown out into the heating chamber A from the blower window 24 opened on the side surface of the main body 1.

Therefore, with the above-described operation, a large amount of odorless hot air is blown into the heating chamber B, and the interior of the room B is quickly heated.

By the way, while the hot air heater A is in continuous operation, the air for obtaining the above-mentioned hot air and the combustion air for completely burning the burner 9 are all transferred from the heating chamber A to the back side of the main body 1. Since the air is introduced through the intake window 18 which is opened at Air is naturally drawn into the heating chamber B, and as a result, the ventilation inside the heating chamber B is naturally performed, and the burner 9 is supplied with warm air from inside the room, resulting in better combustion conditions. can be maintained and the heating effect can be promoted.

In short, since the present invention has the above-mentioned specific configuration, even when a heat exchange device equipped with a burner with a large calorific value is installed in a heat exchange room to perform a high-efficiency room heating action. However, it eliminates all the drawbacks seen in conventional hot air heaters, cools the entire circumference of the main body accurately and quickly, completely prevents burns during heating work, and provides excellent indoor heating. Not only can this be easily achieved, but even a single blower can generate hot air,
At the same time, the air used for cooling the main unit can be heated slightly and blown into the heating room through the blower window, producing a large volume of odorless warm air in a small size. Of course, hot air can be easily obtained even with a hot air heater, but during the heating operation, the unclean air in the heating room can be automatically replaced with fresh outside air by operating the blower without changing the air pressure. At the same time, the burner is always supplied with warm combustion air to ensure complete combustion, thereby heating the room to a constant temperature at all times.

[Brief explanation of the drawing]

The drawings show an embodiment of the hot air heater according to the present invention, in which FIG. 1 is a longitudinal sectional front view with main parts cut away, and FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1. Figure 3 is a vertical front view showing the hot air generation passage, Figure 4 is Figure 3 B-B
5 is a cross-sectional view taken along the line C-C of FIG. 4, FIG. 6 is a cross-sectional view taken along the line D-D of FIG. 4, and FIG. Figure E-E cross-sectional view in the direction of the arrow, No. 8
The figure is a cross-sectional view taken along the line FF in FIG. 5, FIG. 9 is a cross-sectional view taken along the line G-G in FIG. FIG. A... Warm air heater, B... Heating room, 1
...Main body, 2.3...Partition plate, 4...
... Fumarole chamber, 5... Fumarole window, 6...
・Heat exchange room, 7...Heat exchange device, 8...
・Oil storage tank, 9...burner, 10...blower, 11...oil pump, 12...
Bent flue, 13...Chimney, 14...Hot air generation passage, 15...Communication passage, 19...
・Front cooling passage, 20... Rear cooling passage, 21
...Full window, 22...Communication port, 23.
... Upper and lower side cooling passages, 24 ... Blower window, 28 ... Blower cylinder.

Claims (1)

[Claims] 1 Separate the inside of the main unit with a partition plate, and turn from the top to the bottom.
A heat exchanger that houses a heat exchange device consisting of a fumarole chamber with an open blow window, a burner with a blower and oil pump directly connected on the same axis, and a bent flue with the burner attached to the starting end 11il and the terminal end connected to the chimney. A chamber and an oil storage tank are sequentially provided, and around the bent flue, a hot air generation passage is provided with a starting end 11Il opening into the heat exchange chamber and a terminal end connected to the fumarole chamber via a communication passage. A front cooling passage, a rear cooling passage, and upper and lower side cooling passages are provided on the front, rear, and upper and lower sides of the heat exchange chamber, each of which has its starting end communicating with the heat exchange chamber.The end of the front cooling passage is connected to the bottom of the fume window. The hot air heater is connected to the blow window opened on the side of the main body, the terminal side of the rear cooling passage is connected to the fume chamber through the communication port, and the terminal side of the upper and lower side cooling air passages is connected to the blow window opened on the side of the main body. At the same time, the hot air heater was installed in the heating room, and around the chimney extending outside, intake pipes were arranged concentrically to draw outside air into the heating room in accordance with the operation of the blower. A hot air heater characterized by: