KR0123688Y1 - Agricultural oil burner of hot blast heating - Google Patents

Abstract

The present invention relates to an oil burner of agricultural hot air heater for supplying hot air of a certain temperature to vegetables and flowers grown in a greenhouse or glass greenhouse.

The conventional oil burner (4) is attached to the agricultural heating air heater is a means for selectively using light oil and bunker oil, the diesel oil supply passage and bunker oil supply passage in parallel to one oil burner (4), the structure is complicated And maintenance was inconvenient disadvantage.

Oil burner 4 of the present invention is composed of a single passage system consisting of one fuel injection hose 26 and one fuel supply valve 24 and the like to solve the above disadvantages of the prior art And the bunker oil of the bunker oil tank 37 is joined at the fuel injection hose 26 so that light oil and bunker oil can be selectively used by a simple structure, thereby reducing fuel costs and increasing oil burner by increasing the use of bunker oil. It is an oil burner of agricultural hot air heater that improves the simplicity of manufacture and maintenance of 4).

Description

Oil burner of agricultural hot air heater

1 is an overall perspective view of a warm air heater attached to the oil burner of the present invention.

2 is a longitudinal sectional view of a part of the hot air heater to which the oil burner of the present invention is attached.

3 is a perspective view of an oil burner of the present invention.

4 is a fuel supply system diagram of an oil burner of the present invention.

* Explanation of symbols for main parts of the drawings

1: radiator case 2: air chamber

3: blower 4: oil burner

5: cylindrical combustion chamber 6: combustion gas pipe

7: hot air outlet 8: air supply heat circulation tube

9: rear gas return chamber 10: front gas return chamber

11: house room 12: communication

13: burner chamber 14: burner chamber cover door

15: control box 16: hot air

17: combustion gas 18: gear pump

19 filter 20 bunker preheater

21: nozzle 23: heat transfer coil

24: fuel supply valve 25: fuel supply pipe

26: fuel injection hose 27: diesel injection valve

28: bunker oil injection hose 29: bunker oil injection valve

30: fuel recovery hose 31: combustion port

32: burner fixing plate 33: hinge rod

34: hinge fastener 35: electrode

36: blower fan driving motor 37: bunker oil tank

38: diesel injection hose 39: diesel tank

The present invention relates to an oil burner of an agricultural hot air heater for supplying hot air of a certain temperature suitable for growing vegetables, plants, such as tomatoes, strawberries, cucumbers, watermelons, chrysanthemums, roses, etc. grown in a greenhouse or glass greenhouse. It was designed and improved to improve the working effect by simplifying its configuration to make it easier to use the fuel supply structure of the oil burner of agricultural hot air heater of 1994. In the oil burner which can use each kind of fuel, the structure consisting of one fuel injection hose, gear pump, fuel supply valve, fuel supply pipe and nozzle is a simple passage system for fuel supply. In addition to the tank and bunker oil tank, it is possible to selectively use light oil and bunker oil. It will anhan.

In general, the construction of an agricultural hot air heater used for heating suitable for growing crops in a greenhouse, such as a plastic house, includes a cylindrical combustion chamber in which external air is sucked by a suction force of a blower into an air chamber inside a heater case and burned by an oil burner. It is to be heated by contact with the high heat of the combustion gas pipe communicating with this to discharge the hot air of a predetermined temperature through the outlet of the passage through the blowing force of the blower.

The configuration of the oil burner, which is the most important heating device in such a hot air heater, is generally a gear pump, and when fuel or bunker oil, which is fuel, is supplied to the nozzle, the electrode at the tip of the nozzle generates sparks and ignites the blower fan motor. Blown by the rotation of the blown fan is an intense combustion of fuel.

The oil burner used in agricultural hot air heaters is configured to burn with only one type of fuel, either diesel or bunker oil. Therefore, the type of fuel is used for fuel purchase or fuel cost reduction. In the case of changing to bunker oil such as bunker A oil or bunker B oil or using bunker oil, the oil burner was inconvenient and uneconomically incompatible.

In addition, the oil burner of the hot air heater for agricultural use of 1994 Utility Model Application No. 34428, which was devised and filed by the inventor of the present invention, is a structure that can selectively use light oil and bunker oil, but in the fuel supply passage, Because of the coexistence of the two and bunker use coexisted in a double, the configuration was complicated, and the inconvenience of maintenance was a big disadvantage.

The present invention improves the oil burner of the conventional uncomfortable configuration in agricultural hot air heaters so that a single fuel supply passage having a simple structure can selectively use diesel oil or bunker oil according to fuel supply conditions or heating conditions. It is convenient to change the fuel, and it is easy to ignite and burn the bunker oil as the initial combustion for 1 to 2 minutes of the diesel oil using the same fuel supply passage when using the bunker oil. When bunker oil combustion is extinguished for maintenance, sticky bunkers remaining inside fuel supply passages, gear pumps and nozzles as final combustion for one to two minutes after light oil is subsequently supplied by passages such as bunker oil. The oil is washed out to facilitate the fuel supply for the subsequent combustion process. As a result, bunker oil is convenient to use, and thus, it is possible to reduce fuel costs by increasing the use of bunker oil, which is cheaper than diesel.

The configuration thereof will be described in detail with reference to the accompanying drawings.

The air supplied by the suction power of the blower 3 to the air chamber 2 inside the heater case 1 is heated by the cylindrical combustion chamber 5 and the combustion gas pipe 6 which are burned by the oil burner 4, 7) The configuration of supplying warm air through the general warm air heater.

In the oil burner 4 of the agricultural hot air heater for supplying warm air by heating air to the crops in the plastic house or the glass greenhouse, a fuel injection hose 26 is provided on the fuel injection side of the gear pump 18. On the discharge side of the gear pump 18, one fuel supply valve 24 and one fuel supply pipe 25 for supplying fuel to the nozzle 21 are provided, but at the injection side of the fuel injection hose 26, The diesel oil injection hose 38 to which the diesel oil tank 39 and the diesel oil injection valve 27 are connected, and the bunker oil injection hose 28 to which the bunker oil tank 37 and the bunker oil injection valve 29 are connected are joined together. will be.

Here, the fuel supply valve 24, the diesel fuel injection valve 27, and the bunker oil injection valve 29 should be automatically controlled by the electronic control system of the control box 15 installed on the front of the heater. Therefore, it is of course preferable that it is composed of a solenoid valve operated by an electronic response.

Reference numeral 8, which is not described in the drawings, is an air-class heat circulation tube that promotes circulation of heated air in the air chamber 2, 9 is a rear gas return chamber in which combustion gas is returned, and 10 is a combustion gas return. The front gas return chamber, 11 is the combustion gas collecting chamber, 12 is the communication chamber, 13 is the burner chamber in which the oil burner is installed, 14 is the burner chamber cover door, 15 is the control box for controlling the operating state of the heater, 17 is combustion Gas, 30 is a fuel recovery hose for retreating the remaining fuel from the gear pump, 31 is a combustion port of the heater, 32 is a burner fixing plate, 33 is a hinge rod to hinge the oil burner to the combustion port, 34 is a hinge connection 19 is a filter for filtering light oil or bunker oil, and 20 is a bunker oil preheater.

The effect of the present invention configured as described above is that the heated air 16 is heated by heating the air in the air chamber 2 of the cylindrical outer circumference of the cylindrical combustion chamber 5 of the agricultural air-heater. 7) One oil burner (4) can selectively carry out combustion of diesel oil or bunker oil in an agricultural hot air heater that supplies hot air 16 at a temperature suitable for growth to a crop in a greenhouse or a glass greenhouse. will be.

First, when the diesel fuel is used as the fuel, the bunker oil injection valve 29 is locked by the valve opening control means of a separate controller, which is known in the art, and the diesel fuel injection valve 27 and the fuel supply valve 22 are opened. When the gear pump 18 is operated, only the light oil is transferred from the light oil tank 39 by the gear pump 18 to pass through the light oil injection valve 27 and the filter 19, and the gear pump 18 and the fuel supply valve ( When the light oil supplied to the nozzle 21 through the fuel supply pipe 25 and the fuel is ignited by the spark generation of the electrode rod 35, the light oil is burned by the blowing of the blower fan built in the blower fan driving motor 36. .

On the other hand, when the heater is used to operate the heater using bunker oil, all the valves flowing into the gear pump 18 are locked by the input program in advance, and the gear pump 18 is operated.

Therefore, the bunker oil or the case remaining inside the gear pump 18 is discharged through the fuel recovery hose 30 in a state in which all the valves are locked, and after about 30 seconds, the diesel fuel injection valve 27 and the fuel supply valve 24 Is opened and diesel oil is supplied to the nozzle 21. At this time, the nozzle 21 is sufficiently preheated by a heater (not shown), the gas oil is vaporized and sprayed at a high temperature, and the gas oil is ignited and burned by the spark of the electrode rod 35.

In this way, when the diesel oil is ignited and 1 to 2 minutes have elapsed after the start of combustion, the surroundings of the nozzle 21 become high enough to ignite the bunker oil. (27) is locked and at the same time the bunker oil injection valve 29 is opened to transfer only the bunker oil from the bunker oil tank 37 by the gear pump 18 to generate electric heat by a nichrome wire, etc. Preheated while passing through the built-in bunker oil preheater 20, the fuel injection hose 26, gear pump 18, and fuel supply are passed through the bunker oil injection valve 29 and the bunker oil injection hose 28. When bunker oil is supplied to the nozzle 21 through the valve 24 and the fuel supply pipe 25 in turn, the bunker oil is easily ignited by the high heat caused by conventional diesel combustion, and the bunker oil is combusted.When stopping the kerosene combustion, the bunker oil injection valve 29 is closed by the electronic control system of the control box 15, and the diesel oil injection valve 27 is opened to finally carry out the diesel combustion process for 1 to 2 minutes. It is configured to increase the efficiency of the subsequent combustion by cleansing the bunker oil residues remaining inside the gear pump 18 and the nozzle 21, etc., and consists of a single fuel supply passage with a simple structure of diesel oil and bunker oil. The single-pass system such as the fuel injection hose 26 and the fuel supply valve 24, which can be used jointly, makes it possible to selectively burn diesel and bunker oils. The convenience of using bunker oil selectively and the simplicity of ignition of bunker oil by diesel fuel can effectively ignite bunker oil. As it can increase the use of bunker oil, which is cheaper than diesel, it can reduce fuel costs and simplify the composition of the oil burner, which is very useful for agricultural hot air, which improves the ease of manufacture and ease of use and maintenance management. Oil burner of heater.

Claims (1)

In an oil burner of an agricultural hot air heater for supplying warm air by heating air to a crop in a greenhouse or a glass greenhouse, a fuel injection hose 26 is provided on the fuel injection side of the gear pump 18, and the gear pump ( 18, one fuel supply valve 24 and one fuel supply pipe 23 for supplying fuel to the nozzle 21 are provided on the discharge side, and the diesel tank 39 on the injection side of the fuel injection hose 26 is installed. ) And the diesel fuel injection hose 38 to which the diesel fuel injection valve 27 is connected, and the bunker oil injection hose 28 to which the bunker oil tank 37 and the bunker oil injection valve 29 are connected are combined. Oil burner of agricultural hot air heater.