JPS5910557Y2 - hot air generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot air generator connected to a grain drying or storage device.

The gist of this is that a kerosene or gasoline engine is driven to rotate the power parts of the dryer, such as a screw conveyor and a rotary feeder elevator for circulation adjustment, while the exhaust heat of the engine and the cooling heat of the engine are The hot air generator is used as a heat source for drying grains in a drying or storage device, and is further connected to a grain drying device or storage device using an auxiliary heating device for temperature adjustment.

Conventionally, this type of hot air generating and blowing equipment mainly uses electrical energy as a heat source, but in that case, it is essential to connect power cables, making it possible to move the hot air generator freely and perform drying work at any location. It is impossible to do.

The present invention has solved these drawbacks, and its features are that the frame of the hot air blower, which is connected to the grain drying equipment or dry storage equipment in a sealed manner, is shaped like a box, and that The area other than the air intake and the air outlet is sealed with a soundproof cross-sectional material, and a blower is installed within the machine frame with the air outlet aligned with the air outlet, and the engine that drives the air blower and combustion as an auxiliary heat source for hot air are installed. The mounting part of the device is placed on the suction side of the blower and installed within the machine frame, and a transmission mechanism is provided to connect the drive shaft of the blower and the output shaft of the engine so that the engine drives the blower and blows air. The air intake from the outside is provided in the side wall of the mounting part, and the air taken in from there is introduced so as to be used for combustion of the engine and air cooling of the engine.
Means is provided to increase the temperature in the machine frame by the exhaust gas of the engine, the heat generated by the engine and the blower, and the heat from the combustion device as an auxiliary heating source, and the heated air is heated by the blower to the drying device or dry storage. A hot air generating device is characterized in that it is configured to blow air into the device.

The present invention will be described with reference to embodiments shown in the accompanying drawings.

1 is a machine frame lined with a soundproof and heat insulating wall 1' for sound absorption and prevention of heat dissipation.
The ceiling is sealed off, and everything except the fresh air intake and the blower exhaust are sealed.

Alternatively, the soundproof and heat insulating wall may surround only the engine and leave the blower open.

Reference numeral 2 is an engine, which is usually a kerosene engine or a gasoline engine, and is used not only to drive the blower, but also to drive and rotate each rotating part of the drying and storage device itself. be.

At the same time, the gist of this invention is to utilize the heat and exhaust gas obtained by air-cooling the engine.

3 is an outside air intake port into which fresh air flows in according to the suction force of the blower.

4 is a muffler for muffling engine noise.

Reference numeral 5 denotes an exhaust stop valve connected to the muffler 4, which is branched from the main pipe, and when the engine is started and incomplete combustion is complete, the valve is opened and gas is discharged to the outside of the machine. .

6 is a stop valve attached to the engine exhaust gas pipe 17, which is closed when the stop valve 5 is open, and is always opened when the exhaust gas is in a good condition, and the exhaust gas is directed to the intake port of the blower. being sent.

Reference numeral 7 denotes an auxiliary heating device, which is an auxiliary hot air source to compensate for the lack of heat required for drying with only the heat generated by air-cooling the engine, the heat generated by the exhaust gas, and the temperature rise of the air caused by the compression of the blower. Gas-fired or kerosene-fired devices are used.

8 is a detection end of a proportional control valve that adjusts the amount of liquid fuel or gas fuel in the auxiliary heating device and adjusts the amount of heat generated.

9 is a valve that controls the flow rate of gas or fuel oil in the auxiliary heating device.

Reference numeral 10 denotes a damper for adjusting the amount of fresh air taken in by the auxiliary heating device, and is used to suitably adjust the suction force of the attached blower and the combustion condition of the combustion itself.

11 is a blower, and a relatively high-pressure blower such as a limit load fan is used.

12 is a power connection handle.

13 is an oil tank.

14 is an operation box for electrical control.

15 is a gas cylinder.

16 is an exhaust pipe, which is a pipe through which exhaust gas is discharged to the outside.

With the above configuration, the present invention not only utilizes the exhaust air and air-cooled heat from the engine, but also automatically controls the hot air source generated by the auxiliary heating device to keep it within an appropriate temperature range after the start of operation, thereby drying the air. Powerful air is blown, and all attached equipment is connected by interlocking devices and driven to rotate.

In the apparatus according to the present invention, the heat source required for drying is largely dependent on the amount of heat generated by the driving engine, and a small portion is provided in the auxiliary heating device, so that the consumption of thermal energy is saved.

Secondly, as is the case with agricultural dryers or storages, the number of operating days per year is small, so not having a power line installed is a great advantage.

Secondly, since the use of a relatively large horsepower engine requires less fuel than the fuel normally used in a furnace for generating hot air,
Since it is not uneconomical to use an engine with a large output, it is not uneconomical to use a blower used in the dryer that has a large air volume and a high horsepower, so that the horsepower is large.

This makes it possible to dry grains at a relatively low temperature and increase the drying loss rate per hour, which is efficient, does not damage the processed material, and produces products with good taste, which is a great improvement in quality control. There are advantages.

Incidentally, the engine has the advantage of being able to be used for other purposes when it is not needed.

[Brief explanation of drawings]

FIG. 1 is a plan view of the hot air generator of the present invention, and FIG. 2 is a side view of the device shown in FIG. 1...Machine frame, 1'...Soundproof insulation wall, 2
...Engine, 3...Outside air intake, 4
・・・・・・Silencer, 5・・・・・・Stop valve,
6... Stop valve, 7... Auxiliary heating device, 8... Proportional control valve detection end, 9...
...Auxiliary heating device gas flow control valve, 10...
・Auxiliary heating device intake air conditioning damper, 11...
・Blower, 12... Handle for power connection, 13
... Oil tank, 14 ... Control box, 15 ... Gas cylinder, 16 ...
Exhaust pipe, 17...Engine exhaust gas pipe, 18...Drying device.

Claims (1)

[Scope of utility model registration request] The machine frame of the hot air blower, which is connected to the grain drying equipment or drying storage equipment in a sealed manner, is shaped like a box, and the surrounding area, except for the air intake from the outside and the ventilation opening, is sealed with soundproofing insulation material. An air blower is installed within the frame with the air exhaust port aligned with the air outlet, and an engine that drives the air blower and a mounting portion of a combustion device as an auxiliary heat source for hot air are placed on the suction side of the air blower and installed within the machine frame, A transmission mechanism is provided to connect the drive shaft of the blower and the output shaft of the engine, so that the engine drives the blower to blow air, and an air intake port from the outside is provided on the side wall of the engine mounting part. A means is provided to introduce the intake air so that it is used for engine combustion and engine air cooling, and the engine exhaust gas, heat generated by the engine and blower, and heat from the combustion device as an auxiliary heating source are used to heat the inside of the aircraft frame. 1. A hot air generating device characterized in that the heated air is raised in temperature and the heated air is blown to the drying device or the drying storage device using a blower.