JP4668462B2 - Outdoor heating unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outdoor heating unit used for in-flight heating of an aircraft parked on the ground and indoor heating of an outdoor installation type facility.
[0002]
[Prior art]
Conventional in-flight heating of aircraft in the ground parking and indoor heating of outdoor facilities have been carried out with a double-cylindrical dry boiler using kerosene as fuel. The dry boiler is installed at the outlet of the blower for supplying heated air for heating, and burns kerosene directly in the inner cylinder, and the temperature of the heated air is adjusted by adjusting the number of nozzles of the burner. Air is heated between the outer cylinder and blown into the machine.
[0003]
[Problems to be solved by the invention]
As mentioned above, conventional dry boilers are directly fired with kerosene, and there is a risk of fire, and non-ignition problems, and combustion control is necessary to control the air heating temperature. As described above, since it is performed by adjusting the number of nozzles used in the burner, there is a problem that delicate temperature control is difficult.
In particular, since the object to be used is an aircraft or an outdoor facility that requires the most safety, there has been a demand for an aircraft with sufficient consideration especially for fire.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to provide an outdoor heating unit having a compact structure that prevents the occurrence of a fire, has high thermal efficiency, and does not require manpower capable of automatic temperature control. .
[0005]
[Means for Solving the Problems]
Therefore, the heating unit of the present invention is
In the heating unit that heats the air inside the parked aircraft or indoors of the outdoor facility from the outside through the air supply duct and performs internal heating,
An engine generator,
Air heating means by the electric power of the engine power generator,
Air heating means by waste heat of the engine power generator,
Constructing a unit structure with a sending means for sending heating air for heating obtained through the two sets of heating means to a heating part,
The delivery means is configured to form heated air by interposing the two sets of heating means and a blower in the air conveyance path from the outside air inlet to the delivery outlet ,
Further, the air conveyance path is arranged in the order of the hot water heater, the upstream temperature sensor, the blower, the electric heater, the downstream temperature sensor, and the delivery port from the outside air intake, and the upstream temperature sensor detects the cooling water circuit. The automatic switching is performed, and the electric heater is automatically controlled for each block by the downstream temperature sensor .
[0006]
The present invention interposes electric energy instead of directly using combustion energy in a heating heat source that is considered to be the cause of a fire from the viewpoint of ensuring safety, and uses electric ohm heat instead of combustion heat as a main heat source. In order to convert the combustion energy into electrical energy, a power source by an engine generator is prepared, and an independent power source for forming a main heat source and a driving power source for ancillary equipment such as a blower as a heating device is provided for each unit. In addition, the air heating means mainly composed of the electric energy and the heating air delivery means are unitized into a unitary structure to handle and move.
[0007]
The air heating means uses the electric energy supplied from the engine generator as described above to form the main heat source, and in addition to the main heat source, the auxiliary heat source is utilized using the waste heat of the engine generator. It is constructed from what is formed to improve thermal efficiency.
And the sending means for heating the outside air taken in from the outside air intake by the air heating means and sending it to the heating part is composed of two sets of heating forming the main heat source and the auxiliary heat source from the outside air intake to the delivery outlet. It is composed of a conveyance path having means interposed therebetween and a blower for sending heated air.
[0008]
In addition, the air heating means using electric power is constituted by an electric heater that converts electric power into heat energy, and the heating means using waste heat is hot water formed by introducing cooling water for a radiator and jacket of an engine power generator into a hot water coil. It is characterized by comprising a heater.
[0009]
According to the second aspect of the present invention, the cooling water for the radiator and jacket of the engine generator is introduced into the hot water coil to form an auxiliary heat source that enables the effective use of exhaust heat, thereby improving the thermal efficiency and raising the main heat source. To compensate for the delay.
[0010]
In particular, the invention according to claim 1 is configured such that the air conveyance path is arranged in the order of the hot water heater, the upstream temperature sensor, the blower, the electric heater, the downstream temperature sensor, and the outlet from the outside air intake port. A feature is that the cooling water circuit is automatically switched by the upstream temperature sensor, and the electric current switching is automatically controlled for each block by the downstream temperature sensor.
[0011]
According to the first aspect of the present invention, the air conveyance path through which the outside air taken in from the outside air inlet flows through the auxiliary heat source and the main heat source and is sent to the heating part as heated air forms the auxiliary heat source from the outside air inlet. A hot water heater, an upstream temperature sensor, a blower, an electric heater that forms the main heat source, a downstream temperature sensor, and an outlet to the aircraft are arranged in this order, and the downstream temperature of the hot water heater is measured by the upstream temperature sensor. The hot water three-way valve is operated to switch the hot water supply to either the radiator side or the jacket side. Automatic switching is performed to raise the outside air of -25 ° C to + 20 ° C or more, and the electric heater is blocked by the downstream temperature sensor. Separately, it is configured such that heated air of approximately 80 ° C. is obtained by automatically controlling with a difference of approximately 2 ° C. in energization switching, and is supplied to the heating part.
[0012]
In addition, the air conveyance path is characterized in that a reflux path is provided between the conveyance path outlet and the outside air intake to recirculate and recover excess heated air.
[0013]
According to the third aspect of the present invention, the surplus heated air may be circulated and circulated by adjusting the amount of air supplied to the load of heated air depending on the situation.
[0014]
Further, the unit is configured to be movable.
[0015]
According to the invention of the fourth aspect, it is possible to freely deal with any heating part in any part.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, unless otherwise specified, the shape and other relative arrangements of the components described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention.
FIG. 1 is a schematic diagram showing a schematic configuration of an outdoor heating unit of the present invention, and FIG. 2 is a diagram showing an air flow and temperature control status of the heating unit of FIG.
[0017]
As shown in FIG. 1, the outdoor heating unit 10 of the present invention is mounted on a self-propelled vehicle 25, and when heating air is sent to a parked aircraft 50 that is an outdoor heating portion to heat the self-propelled vehicle, And heated air is sent from the air conveyance path 20 by the blower 14 through the air supply duct 20a to enable predetermined heating.
An engine generator 11 comprising an engine 11a and a generator 11b, an electric heater 13 that forms a main heat source from the electric power generated by the generator 11b, and a hot water heater that forms an auxiliary heat source by the exhaust heat of the engine generator 11 12 and the air blower 14, and the air conveyance path 20 which forms heating air, The air supply duct 20a which supplies the said heating air to the parking aircraft 50, and the recirculation | reflux duct 20b of excess heating air are comprised.
[0018]
The electric power generated by the generator 11b is supplied to an electric heater 13 composed of a plurality of blocks (in this case, four blocks) built in the air conveyance path 20 to form a main heat source, and part of the electric power is supplied to the blower 14. Driven and sucks outside air through the air filter 14b and penetrates the air conveyance path 20 to form heated air.
The cooling water 15 for the driving engine 11a of the generator 11b circulates through the hot water heater 12 and the driving engine 11a built in the air conveyance path 20 to form an auxiliary heat source via the hot water heater 12, and the electric heater 13, the outside air sucked by the blower 14 is allowed to flow to obtain heated air of approximately 80 ° C.
The hot water heater 12 covers the delay in the rise of the electric heater 13 and makes effective use of engine exhaust heat to improve thermal efficiency.
[0019]
FIG. 2 shows the flow of the heated air of FIG. 1, and as shown in the figure, the outside air of approximately −25 ° C. is introduced from the filter 14b through the blower 14 into the air conveyance path 20, and the hot water heaters 12, 4 Heating air of about 80 ° C. is obtained by flowing through the electric heater 13 of the block, and a detachable heat-resistant air supply duct 20a is coupled with the cabin of the parked aircraft 50 to perform the required heating.
As shown in the figure, a temperature sensor 16 a is provided downstream of the hot water heater 12, and the hot water is cooled by either the engine jacket 11 c or the radiator 11 d via the controller 18 and the hot water three-way valve 16. The supply of water 15 is automatically selected, the outside air of about −25 ° C. is raised to + 20 ° C. or more, and then the electric heater 13 is automatically switched to each block by the controller 17 via the downstream temperature sensor 17a. It is controlled so that heated air of approximately 80 ° C. is obtained, thereby enabling unattended operation.
In addition, in order to collect | recover excess heating air, you may provide the recirculation | reflux duct 20b which recirculates a part of heating air between the exit of the air conveyance path 20, and the entrance of external air introduction.
[0020]
In the above description, the heating part is intended for a parked aircraft, but it may be used for indoor heating of an outdoor facility.
[0021]
【The invention's effect】
With the above configuration, it is possible to provide an outdoor heating unit that can perform unmanned operation with good thermal efficiency and safe against fire, and that can arbitrarily support various parking positions.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a schematic configuration of a heating unit of a parked aircraft according to the present invention.
2 is a diagram showing the air flow and temperature control status of the heating unit of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Heating unit 11 Engine power generation apparatus 11a Engine 11b Generator 12 Hot water heater 13 Electric heater 14 Blower 15 Cooling water 16 Hot water three-way valve 17 Controller (electric heater)
18 Controller (hot water heater)
20 Air conveyance path 20a Air supply duct 20b Reflux duct 50 Parked aircraft

Claims (4)

In the heating unit that heats the air inside the parked aircraft or indoors of the outdoor facility from the outside through the air supply duct and performs internal heating,
An engine generator,
Air heating means by the electric power of the engine power generator,
Air heating means by waste heat of the engine power generator,
Constructing a unit structure with a sending means for sending heating air for heating obtained through the two sets of heating means to a heating part,
The delivery means is configured to form heated air by interposing the two sets of heating means and a blower in the air conveyance path from the outside air inlet to the delivery outlet ,
Further, the air conveyance path is arranged in the order of the hot water heater, the upstream temperature sensor, the blower, the electric heater, the downstream temperature sensor, and the delivery port from the outside air intake, and the upstream temperature sensor detects the cooling water circuit. An outdoor heating unit that is configured to automatically switch energization switching of each electric heater block by block using a downstream temperature sensor .   The air heating means by electric power is constituted by an electric heater that converts electric power into heat energy, and the heating means by waste heat is by a hot water heater formed by introducing cooling water of a radiator and jacket of an engine power generator into a hot water coil. The outdoor heating unit according to claim 1, wherein the outdoor heating unit is configured.   2. The outdoor heating unit according to claim 1, wherein the air conveyance path has a configuration in which a reflux path is provided between the conveyance path outlet and an outside air intake to collect and recirculate excess heated air.   The outdoor heating unit according to claim 1, wherein the unit is configured to be movable.

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