JPS582Y2 - Vacuum combustion device for floor heating - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vacuum combustion device for floor heating that heats the interior of a room by disposing a heat source inside the panels constituting the floor.

Conventionally, this type of heating device has prepared a combustion chamber using a gas burner that burns a mixed gas of supplied primary air and fuel gas, and connected the desired number of combustion chambers with an intermediate heat pipe. A system has been implemented in which the fuel gas is placed inside a panel for floor heating, and the combustion gas resulting from the combustion of the fuel gas is exhausted through an open pipe.

However, in such a heating device, a blower is attached to the air intake port of the combustion chamber, and the wind pressure generated by the rotation of the blower is used to send the combustion gas into the heat pipe, thereby passing the exhaust gas through the pipe. Therefore, even if the tips of the heating pipes are protruded from the panel to exhaust the air outdoors, the pressure inside the pipes will always rise above atmospheric pressure. Therefore, if there are extremely small holes or cracks in the heating pipes, However, there is a danger that combustion gas and exhaust gas may be exhausted into the panel through them, which poses a safety problem.

Therefore, in the present invention, a blower is connected to the distal end of the heat pipe, which is the discharge side, instead of the suction side, and the inside of the heat pipe is maintained in a negative pressure state by the blower.
The purpose is to solve the above-mentioned conventional problems.

The present invention will be described in detail below with reference to the illustrated embodiments. FIGS. 1 and 2 show the principle of the present invention. Reference numeral 1 denotes a combustion chamber, which is formed with a gas burner 2 installed therein;
A fuel gas intake port 3 and a secondary air intake hole 4 are provided so that the pressure of the fuel gas is reduced to near normal pressure by a pressure reducing valve (not shown) and primary air is also sent to the gas burner 2. .

Reference numeral 5 denotes an interheating tube made of a steel pipe or the like, which connects the combustion chamber 1.

The heat pipe 5 is disposed over almost the entire area inside the panel 6 for floor heating, and its tip protrudes outward from the panel 6.

The panel 6 is made of foamed concrete, as shown in FIG.
Alternatively, it is formed from a panel main body 6' made of a material with excellent air permeability such as fibers, and a heat insulating layer 6'' made of an arbitrary material attached to the back side of the panel main body 6'. The above-mentioned heating pipes are buried.

Further, a blower 7 is connected to the tip of the heat pipe 5, and the blower 7 maintains the inside of the heat pipe 5 in a negative pressure state by drawing air.

Therefore, in the present invention, as shown in FIGS. 4 and 5, a -IJt"k-shaped part 1' is protruded from the base end of the combustion chamber 1 to form a secondary air suction port 8 larger than the diameter of the pipe. At the same time, the 'JI'lJ IK-shaped part 1' and the combustion chamber 1
A damper 11 for air collision is provided between the base end and the exhaust gas passage g smaller than the diameter of the chamber 1, and
The intake side end of the exhaust gas recovery pipe 9 is connected to the discharge lower ' of the blower 7 with a flexible hose 10, and in the secondary air suction port 8 on the base end side of the combustion chamber 1,
The exhaust gas recovery pipe 9 is separated from the base end of the combustion chamber 1.
The discharge side end of the exhaust gas collection pipe 9 is equipped with a part of the moisture and exhaust gas that has condensed in the intermediate pipe 9 outside (outdoors).
A discharge port 12 for discharging the water is opened.

In the above configuration, the combustion gas is supplied into the combustion chamber 1 with the pressure reduced to around normal pressure, and the blower is
When the heating tube 7 is driven, the blower 7 creates a negative pressure inside the heating tube 5, so the primary air and fuel gas that are sent are mixed due to the pressure difference with the outside pressure and sent to the gas burner as a mixed gas.

The combustion gas that ignites the mixed gas and burns in the combustion chamber 1 heats the combustion chamber 1 and is sucked by the blower 7, so the heat pipe 5
It moves inside in the direction of arrow a in the figure, heats the intermediate heat pipe 5, and the floor heating panel 6 is warmed by the heat radiation from the heat distribution pipe 5, and the panel 6 heats the room.

The inside of this special heat distribution pipe 5 is maintained in a negative pressure state by the blower 7, so even if a small hole or crack occurs in the heat distribution pipe 5, combustion gas and exhaust gas will not blow out into the panel 6. .

Furthermore, the exhaust gas is discharged from the discharge lower ' of the blower 7 to the exhaust gas recovery pipe 9 and heats the spacer pipe 9, so if the exhaust gas recovery pipe 9 is placed at a predetermined position in the room, it can be used for heating the room. I can do it.

In addition, part of the moisture and exhaust gas generated when the exhaust gas is cooled by the recovery pipe 9 is discharged to the outside from the exhaust port 12, and the remaining exhaust gas is mixed with the air taken in from the secondary air inlet 8. It is circulated and supplied to the combustion chamber 1.

As explained above, in this invention, panels for floor heating, etc.
One end is a base end for intake, and the other end is a tip for exhaust, and a heat tube is installed inside, and a combustion chamber with a gas burner installed is connected to the base end of the heat distribution tube, and the tip side is connected to a combustion chamber equipped with a gas burner. A blower for thermal pressure is connected to the combustion chamber, and a protruding part is provided at the base end of the combustion chamber to form a secondary air inlet larger than the diameter of the pipe. A damper for air collision is provided between the eastern part and the base end of the combustion chamber, leaving an exhaust gas passage smaller than the diameter of the chamber, and a damper for air collision is installed at the discharge port of the blower. In addition to connecting the side ends, the discharge side end of the exhaust gas recovery pipe is inserted into the secondary air suction port on the base end side of the combustion chamber, separated from the base end of the combustion chamber, so that it is temporarily connected to the heat pipe. Even if there are small holes or cracks in panel 5, high-temperature combustion gas or exhaust gas will not blow out from them into the inside of panel 6 as in the conventional case, so there is no fear of fire or air pollution, and it is safe. Therefore, clean heating can be performed, and the exhaust gas recovery pipe 9 can be heated by the exhaust gas for heating, thereby improving heating efficiency.

In addition, in this invention, exhaust gas is classified into 'JIJ II) 1. When the air is blown into the shaped air suction port 8, a vortex of the exhaust gas to be introduced is generated due to the shape of the air inlet 8 and the impact of the damper. The dehumidifying effect also removes moisture in the exhaust gas, and this mixed air is supplied in a specified direction. This eliminates incomplete combustion due to lack of oxygen when using only (oxygen concentration) as the secondary combustion air, and also has a dehumidifying effect, so by sending this mixed air to the combustion chamber 1, the combustion state of the burner can be improved. can be maintained, thereby making it possible to sufficiently increase the heat radiation temperature from the heat pipe 5,
Efficient heating can be achieved.

[Brief explanation of drawings]

Fig. 1 is an overall view showing the first embodiment of the vacuum combustion device for floor heating according to the present invention, Fig. 2 is a schematic cross-sectional view of the combustion chamber in the same device, and Fig. 3 is a floor heating device in the same device. FIG. 4 is a partially cutaway perspective view of the second embodiment of the device, and FIG. 5 is a cross-sectional view of the second embodiment of the device.
FIG. 3 is an enlarged sectional view of main parts in the example. 1... Combustion chamber, 1'... Egg plate, 2... Gas burner, 5... Heat tube, 6... Floor Panels for heating, etc. 7...
・Blower 18...Secondary air suction port, 9...
...Exhaust gas recovery pipe, 11...Damper, g.
...Exhaust gas passage.

Claims (1)

[Scope of utility model registration request] Panels for floor heating, etc. are equipped with heat pipes with one end serving as the base end for intake and the other end serving as the tip for exhaust, and the base end of the heat distribution pipe is equipped with a combustion chamber containing a gas burner. At the same time, a blower for negative pressure of the heat tube is connected to the tip side thereof, and an 'il is connected to the base end of the combustion chamber.
A secondary air suction port larger than the pipe diameter is formed by protruding a shaped part of the l19, and an exhaust gas smaller than the diameter of the chamber is provided between the beast-shaped part and the proximal end of the combustion chamber. A damper for air collision is provided leaving a passage, and the intake side end of the exhaust gas recovery pipe is connected to the discharge port of the blower, and the combustion A vacuum combustion device for floor heating that is constructed by separating the base end of the chamber and inserting the discharge side end of the exhaust gas recovery pipe.