JPS6329124A - Hot air type heater - Google Patents

Abstract

PURPOSE:To make a machine outside a room unnecessary and make it possible to install a room heater regardless of its place of installation by providing an indoor machine with a boiler and arranging a burner combustion chamber and a large proportion of an exhaust channel in the storage liquid of a boiler and providing a piping channel in order to arrange an air suction opening for burner combustion and an exhaust outlet outside the room. CONSTITUTION:A gas fuel supply passage 10 and an electric fan 11 for supplying combustion air are connected to a burner 2 and the gas fuel is made to burn completely. The combustion chamber 12 of the burner 2 and a large proportion of an exhaust gas passage 13 are arranged in the storage liquid in a boiler 3 to constitute to heat and evaporate the storage liquid in the boiler 3 by the burner 2. Further, a pipe passage 14 for arranging a combustion air suction opening 14a of the burner outside the room is connected to the electric fan 11, and the pipe passage 14 is provided to protrude so that it can pierce the wall on the back side, for instance, of a casing 1, and a pipe passage 15 for arranging the exhaust opening 15a of the burner 2 outside the room is provided to pass through the pipe passage 4 for combustion air in order to prevent pollution of the air in the room.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a heat exchanger connected to a steam supply path and a condensate return path of a boiler heated by a burner, and an indoor The present invention relates to a hot air heating device in which an indoor air intake and exhaust electric fan for supplying air and hot air indoors is installed in an indoor unit.

[Prior art]

Conventionally, as shown in Figure 6, boiler (goods) and burner □
□□ is installed on the outdoor equipment, and the heat exchanger (
(c) to the boiler head, and the steam supply line (c) that penetrates the wall etc.
It was configured so that the indoor air sent to the heat exchanger (c) by an electric fan was heated by superheated steam from the boiler head.

In other words, by installing the boiler head and burner rack outdoors, it is possible to maintain a safe temperature even when the indoor unit is near a wall, etc., and there are advantages such as eliminating indoor noise and indoor air pollution caused by the burner ramp. was.

[Problem that the invention seeks to solve]

However, since it requires an outdoor installation, there are drawbacks such as restrictions on the installation location and time-consuming installation work.

An object of the present invention is to make use of the advantages of the prior art, eliminate the need for an outdoor installation device, allow installation regardless of location, and enable easy and quick installation work.

[Means to solve the problem]

The characteristic configuration of the present invention is that an indoor machine having a heat exchanger and an electric fan for sucking and exhausting indoor air is provided with a boiler connected to the heat exchanger, and most of the combustion chamber and exhaust path of the burner are located inside the boiler. The present invention consists in providing a conduit for arranging the combustion air inlet and exhaust port of the burner outdoors in the liquid storage of the burner, and its effects are as follows.

[For production]

In other words, the boiler and burner are installed in the indoor unit, eliminating the need for an outdoor unit, which was previously required, and eliminating the inconvenient situation of not being able to use the hot air heating system because there is no space to install the outdoor unit. This eliminates the hassle and work time required to install an outdoor machine and connect it to an indoor machine.

By the way, if you simply install a boiler and burner on an indoor machine, the indoor machine will become hot, which may lead to safety issues and restrictions on the installation location, and the burner may cause indoor noise and indoor air pollution. , which undermines the advantages of the prior art mentioned above.

However, in the present invention, most of the combustion chamber and exhaust path of the burner are located in the liquid storage in the boiler, so the heat and sound insulation by the liquid can keep the case temperature of the indoor unit sufficiently low. , the indoor noise caused by the burner can be suppressed to a sufficiently low level.

Further, since air for combustion to the burner can be taken in from outside through a pipe, and exhaust gas from the burner can be discharged outdoors through a pipe, contamination of the indoor air can be eliminated.

〔Effect of the invention〕

As a result, while taking advantage of the advantages of conventional technology in terms of safety, indoor noise prevention, and indoor air pollution prevention, we have also created a warm air system that is extremely superior in terms of installation and installation work, allowing for easy and quick installation regardless of location. We are now able to provide heating equipment.

〔Example〕

Next, an example will be shown with reference to FIGS. 1 and 2.

The wall mount is an oblong casing (1
), the indoor air from the boiler (3) heated by the burner (2), the heating heat exchanger (5), the cooling heat exchanger (6), and the intake row (7) is transferred to the heat exchanger ( 5), (6) and an electric fan (9) for indoor air intake/exhaustion that supplies warm or cold air into the room from the outlet (8), and their accessories.

A gas fuel supply path αQ and an electric fan αp for supplying combustion air are connected to the burner (2), and gas fuel such as city gas or propane gas is supplied to the combustion chamber from the combustion air fan from the electric fan (6). It is designed for complete combustion.

Most of the combustion chamber (6) and exhaust passage (c) of the burner (2) are placed in the liquid stored in the boiler (3), and the stored liquid in the boiler (3) is heated and evaporated by the burner (2). In addition, the pressure inside the boiler (3) is set such that the boiling point is 60~
The temperature is set to 120°C, preferably 65 to 85°C, depending on the type of liquid stored, to prevent indoor noise caused by the burner (21) and overheating of the casing fi+. For example,
When water is stored in the boiler (3), the relationship between the boiling point in the boiler (3) and the pressure in the boiler (3) is as follows.

Boiling point (°C) Pressure (1) 1 20 2.025 85 0.589 65 0.255 60 0.203 Combustion air inlet (pipe line for locating 14 toge outside (141), % dynamic fan ( A conduit 1151 is connected to the gauging [11] and protrudes through the wall etc. on the back side of the gauging [11] to arrange the exhaust port (15a) of the burner (2) outdoors. The pipes are carefully passed through the pipe to prevent indoor air pollution.

The steam supply line and the condensate return line of the boiler (3) are connected to headers (5b) connected to both ends of the horizontal fin tubes (5a) of the heating heat exchanger (5), respectively, and the electric fan (9 ) The indoor air supplied by the fin tube (5
After heating with steam in step a), hot air is blown into the room using an electric fan (9), and the condensate generated by heating the air is transferred to the fin tube (5a), the header (5b), and the condensate return path a'1.
) is configured to return water to the boiler (3).

The liquid stored in the boiler (3) is heat transfer liquid or other heat transfer liquid, and there is a safety valve (to) that opens when the pressure in the boiler (3) increases and a pressure switch (to) that automatically extinguishes the burner (2).
1L is attached to the boiler (3).

A known compression type air conditioner (not shown) is connected to the cooling heat exchanger (6), and the air conditioner is installed outdoors.

Operating tools and electrical components for switching between air conditioning and heating, heating operation and stop, cooling operation and stop, etc. are centrally arranged on an operation panel (1) at one lateral end of the casing (1).

[Another example]

Next, another embodiment will be described.

To form the heating heat exchanger (5), as shown in FIGS. 8 and 4, a large number of finned heat pipes (6C) are arranged vertically in parallel, and each of the heat pipes (5c) Connect the lower end to the boiler (3) and heat pipe (6C)
It is also possible to form a steam supply path and a condensate return path, and in this case, it is possible to eliminate condensate retention in the heat exchanger (5). Various other changes can be made to the specific configuration of the heating heat exchanger (5).

The cooling heat exchanger (6) and the air conditioner may be omitted, and if they are provided, the heating heat exchanger (6) may be placed above the cooling heat exchanger (6), as shown in FIG. 5) is placed below the cooling heat exchanger (6).
) below the indoor air intake and (7) below the air outlet (8).
The boiler (3) is placed near the back of the heating heat exchanger (5), and the damper Q1) is used to cover the back of the cooling heat exchanger (6) during heating, so that indoor air can be used as heating heat. The hot air heated by the exchanger (5) and boiler (3) is blown downward into the room to heat the room efficiently and uniformly. It may be provided so as to be swingable so that it is cooled by the cooling heat exchanger (6). Heating heat exchanger (
5), boiler (3), electric fan for indoor air intake and exhaust (9)
), etc., can be changed as appropriate.

The burner (2) can be appropriately changed in type, arrangement, etc., such as by adopting a Bunsen combustion method, for example.

The combustion air conduit α→ and the exhaust conduit (toward) can be appropriately changed in terms of arrangement, shape, and other aspects, such as the former being located within the latter, or both being arranged side by side.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line ■--■ in FIG. FIG. 8 is a partially cutaway front view showing another embodiment of the present invention;
The figure is a sectional view taken along the line I'/-IV in FIG. FIG. 5 is a sectional view showing another embodiment of the present invention.・Figure 6 is a conceptual diagram of a conventional example. (2)...Burner, (3)...Boiler, (5)...Heat exchanger, (9)...
Electric fan, (6)... Combustion chamber, Sakaki...
・Exhaust path, α60...Pipeline, (14a)...
... Combustion air inlet, α ... Pipe line, (1
5a)...Exhaust port, (16), (5c)...
...Steam supply path, (17), (5c)...
Condensate reflux path. Agent Patent attorney Osamu Kitamura (11 or 1 person) Figure 2 Figure 4

Claims (2)

[Claims] (1) Steam supply paths (16), (5c) and condensate return path (17), (5c) of the boiler (3) heated by the burner (2)
5c), and an indoor air intake/exhaust electric fan (9) that supplies indoor air to the heat exchanger (5) and warm air indoors. The hot air heating device is provided with the boiler (3) installed in the indoor unit, and most of the combustion chamber (12) and exhaust passage (13) of the burner (2) are connected to the boiler (3). the combustion air inlet (14) of the burner (2).
A hot air heating device provided with pipes (14) and (15) for arranging a) and an exhaust port (15a) outdoors. (2) The pressure inside the boiler (3) is set at 60 to 120°C.
The hot air heating device according to claim 1, which is set to obtain a boiling point of .