JPS62266354A - Machine for supplying hot air together with electrical power - Google Patents

Abstract

PURPOSE:To eliminate an external commercial electrical power and enable an energy saving in producing hot air by a method wherein an engine generator is additionally combined with equipment constituting a hot air heater. CONSTITUTION:A generator 2 is connected to an engine 1 to constitute an engine generator 3. To an output shaft of the engine 1 is connected an air blown fan 4, an air blower fan device 6 is constituted by the air blowing fan 4 and a radiator 5, thermal radiation from a cooling system and a radiation system is cooled by air flow of relative low pressure and large amount supplied from a fresh air suction port 13 as the generator 3 is operated, a supplied air for a blower device 9 and a burner device 12 positioned at downstream side of air flow is preheated to as to make an energy saving. Combustion exhaust gas from the engine 1 is guided to a combustion part in a combustion chamber 11 from a exhaust gas pipe 15, hot remaining air in the combustion discharging gas not only assists combustion of fuel injected from a fuel injection nozzle 10, but also the combustion exhaust gas containing high thermal energy is sucked into hot combustion gas generated in the combustion chamber 11 to assist in providing an energy saving.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a hot air fan that requires hot air for drying food or baking paint, and also requires electric power to operate equipment.

(Prior art) A typical example of a conventional hot air fan consists of a burner device that burns fuel to generate high-temperature combustion gas, a blower device that sends combustion air to the burner device, and a fan device for blowing air. .

The fuel sent to the burner device is mixed and ignited with relatively high pressure and small volume of fresh air sent from the blower device to become high temperature combustion gas. On the other hand, the relatively low-pressure, large-volume air supplied from the current-transmission fan device absorbs the thermal energy contained in the high-temperature combustion gas and turns into warm air, thereby supplying the hot air.

(Problems to be Solved by the Invention) Among the devices of conventional hot air fans, the blower device and fan device that require large amounts of power are driven by electric motors, and the power is supplied from a commercial power source. There was a problem in that the electricity cost during operation was high. There were also problems with power outages due to commercial power. Furthermore, during the summer power peak, it was sometimes necessary to restrict the operation of hot air fans because the contracted power amount was exceeded.

(Means for Solving the Problems) In the conventional technology, the part that requires a large amount of commercial power is the driving power of the electric motor of the blower device or the fan device. The present invention has been made in view of the above points, and it eliminates the need for external commercial power by adding an engine generator to the equipment constituting the conventional hot air blower.

(Function) The power-supplied warm-air fan according to the present invention having such a configuration becomes a power-independent hot-air fan that does not require an external supply of commercial power, that is, the power supply for driving the blower device, fan device, etc. can be self-sufficient from the engine generator.

In addition, when the engine generator is operating, the heat radiated from the engine cooling system, exhaust system, etc. is mixed with high-temperature combustion gas produced by the burner device and low-pressure large air volume blown from the blower fan device, and then converted into warm air. It greatly helps in energy saving for transmitted hot air production.

(Example) This invention will be explained based on the drawings. The drawing shows an example of a configuration in which an engine generator using a water-cooled gas engine is combined with a hot air blower.

A generator 2 is connected to the engine 1 to constitute an engine generator 3. A blowing fan 4 is connected to the output shaft of the engine 1, and the blowing fan 4 and the radiator 5 constitute a blowing fan device 6. As the generator 3 operates, air is removed from the cooling system and the radiation system. The heat radiation is cooled by a relatively low-pressure, large-volume wind flow from the fresh air intake port 13, and preheats the air supplied to the blower device 9 and burner device 12 located on the leeward side of the wind flow, which helps save labor. The blowing fan 4 is driven to generate a wind flow in the direction of absorbing the heat radiation from the power generation a3, and in one embodiment of the drawing, the mechanical output of the engine generator 3 is used as the driving method. However, it is of course possible to drive using electrical output. Furthermore, another fan is installed in the air passage of the air exhaust port 14, and the air flow causes the engine generator 3 to
If the heat radiation from the fan 4 can be absorbed,
can also be omitted.

The blower device 9 consists of an electric motor 7 and a blower 8 driven by the electrical output of the engine generator 3,
The burner device 12 also includes a fuel injection nozzle IO and a combustion chamber 1i. A portion of the relatively low-pressure, large-airflow air that has been preheated by absorbing the heat radiated from the engine generator 3 is distributed to the blower device 9, where it becomes a relatively high-pressure, small-airflow air and is sent to the burner device 12. It is supplied as combustion air, mixed with fuel, ignited, and consumed in combustion to become high-temperature combustion gas.

The combustion exhaust gas of the engine 1 is introduced into the combustion section of the combustion chamber 11 through the exhaust pipe 15, and the high-temperature residual air in the combustion exhaust gas not only helps the combustion of the fuel injected from the fuel injection nozzle 10, but also emits high thermal energy. The contained combustion exhaust gas is absorbed by the high temperature combustion gas produced in the combustion chamber 11, thereby contributing to energy saving. Another method of absorbing the high thermal energy contained in the combustion exhaust gas of the engine 1 to help save energy is to absorb the heat released from the engine combustion exhaust gas into the air flow from the blower fan device through a non-gas heat exchanger. It is also possible that S is present in the engine combustion exhaust gas.
This is effective when harmful substances such as 02 are contained.

Now, as described above, a portion of the relatively low-pressure, large-volume fresh air that has absorbed the heat radiated from the engine power generators n and 3 and has been preheated is distributed to the blower device 9.

The other part absorbs the thermal energy contained in the high-temperature combustion gas produced in the combustion chamber 11 and becomes warm air, but in one embodiment of the drawing, it is mixed with the high-temperature combustion gas and the whole becomes warm air. However, as another example, if the high-temperature combustion gas contains harmful substances such as SO It is also possible to adopt a configuration in which the thermal energy absorbed is absorbed and turned into warm air, and the high temperature combustion gas from which heat has been removed is discharged outside the system as low temperature exhaust gas. The warm air thus produced is supplied to the outside through the exhaust port 14.

The electric power generated by the engine power generation a3 is of course supplied to the equipment constituting the hot air fan.

The surplus power can be freely supplied to external equipment.

In the drawings, details are omitted and the basic configuration is shown.

(Effects of the Invention) As detailed above, according to the present invention, power self-sufficiency that does not require an external power supply is possible, so it is exempted from problems during power outages and operational restrictions during the summer 2t11 power peak. At the same time, by saving energy by recovering waste heat from the engine, it became possible to self-sufficiency in electricity at a lower cost than with an engine generator, and the power cost during operation, which was problematic with conventional technology, was significantly reduced. In other words, commercial power consumption, which has a relatively high price per unit of energy, is eliminated, and the heat generated by the engine generator can be recovered without wastage for energy savings.

[Brief explanation of drawings]

The drawing uses a water-cooled gas engine generator. An example of a power-supplied warm air fan in which the engine combustion exhaust gas is introduced into the combustion section of a burner device is shown. ■...engine, 2...generator. 3...Engine generator, 4...Fan. 5...Radiator, 6...Fan device. 7...Electric motor, 8...Blower 29...
- Blower device, 10... fuel injection nozzle. 11... Combustion chamber, 12... Burner device. 13...Air intake port, 14...Air exhaust port, 15...
Exhaust pipe. Patent applicant: Toyo Machinery Co., Ltd. Olympia Kogyo Co., Ltd.

Claims (3)

[Claims] (1) Consisting of an engine generator, a blower fan device that is driven to generate an air current in a direction that absorbs heat radiated from the engine generator, and a blower device and a burner device located on the leeward side of the blower fan device. A part of the air blown from the blower fan device is sent to the burner device via the blower device and consumed for combustion, and the other air is contained in the high temperature combustion gas produced by the burner device. A power supply hot air fan that absorbs thermal energy and generates hot air. (2) The electric power supply warm air fan according to claim 1, wherein engine combustion exhaust gas from the engine generator is introduced into the combustion section of the burner device. (3) The power supply warm air machine according to claim 1, characterized in that heat radiated from the engine combustion exhaust gas of the engine generator is absorbed into the air flow from the blower fan device via an exhaust gas heat exchanger. .