KR0120604Y1 - Agricultural oil burner - Google Patents

Abstract

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

The conventional oil burner (4) is attached to the agricultural hot air heater is configured to use only one kind of fuel of diesel or bunker oil, so it is inconvenient disadvantage that it is not possible to change the fuel depending on the fuel supply conditions or heating conditions. there was.

The oil burner 4 of the present invention uses a gas oil supply means by means of a gas oil supply valve 22 and a bunker oil supply means by means of a bunker oil supply valve 24, etc. in one gear pump 18 in order to solve these problems. In addition, it is possible to selectively use diesel fuel or bunker oil according to fuel conditions or heating conditions, so that the compatibility of fuel usage and initial preheating during bunker oil combustion can be easily performed as diesel fuel by means of diesel fuel supply means. It is an oil burner of agricultural hot air heater that provides the effect of reducing fuel cost by increasing the use of bunker oil.

Description

Oil burner of agricultural hot air heater

1 is an overall perspective view of a warm air heater equipped with an oil burner in the present article.

2 is a longitudinal cross-sectional view of a portion of the warm air heater attached to the oil burner in this paper.

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

4 is a fuel supply system diagram of a gear pump of an oil burner in this paper.

* 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: diesel inlet 20: bunker oil inlet

21: nozzle 22: diesel oil supply valve

23: diesel oil supply pipe 24: bunker oil supply valve

25: bunker oil supply pipe 26: diesel 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 fasteners

35: electrode 36: blower fan drive motor

This proposal is an oil burner of agricultural hot air heater for supplying hot air of constant temperature suitable for growing vegetables and plants such as tomatoes, strawberries, cucumbers, watermelons, chrysanthemums, roses, etc. grown in a greenhouse or glass greenhouse. A diesel burner and a bunker oil supply means such as bunker A oil or bunker B oil are installed in the burner of the oil burner for agricultural hot air heaters designed to selectively use light oil or bunker oil according to heating conditions or fuel supply conditions. It is about.

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. The combustion gas pipe communicating with this is heated by contact with high heat to discharge hot air at a predetermined temperature through the hot air outlet through the blowing force of the blower.

The configuration of oil burner, which is the most important heating device in such a warm air heater, is generally a gear pump, and when fuel or bunker oil, fuel, is supplied to the nozzle, the electrode at the tip of the nozzle generates spark and ignites it in the blower fan motor. It is blown by the rotation of the blower fan, which burns intensely the bridge.

The oil burner used in agricultural hot air heaters is designed to be burned by supplying only one kind of fuel, either diesel or bunker oil. Therefore, diesel oil is used for fuel purchase or fuel cost. When it is necessary to change to bunker oil such as bunker A oil or bunker B oil or to use diesel after bunker oil, there is an inconvenience and uneconomical disadvantage that the oil burner cannot cope with compatibility.

On the other hand, when the flame is ignited by using a fuel having low volatility such as a diesel burner or a bunker oil burner, a sufficient preheating is applied to the nozzle, which is the ejection outlet of the fuel, before the burner is operated. The fuel is vaporized and injected at a high temperature to be ignited by the spark of the electrode, and this preheating system uses a method of giving and heating the nozzle with a heater.

However, in the case of a burner using bunker oil having a much lower volatility than diesel, the cost of installing an electrical system using a heater to heat the bunker oil having a high viscosity and low volatility to a predetermined temperature is high. U-burner preheating device takes about 5 times the installation cost), and the end of the bunker u-burner is expensive.

This paper improves the conventional oil burner with this inconvenient configuration in agricultural hot air heaters, and installs a diesel oil supply and bunker oil supply in one oil burner to select diesel or bunker oil according to fuel supply conditions or heating conditions. It is convenient to use bunker oil because it is easy to preheat the bunker oil. The increased use of inexpensive bunker oil is designed to reduce fuel costs.

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 warm air heater for supplying warm air by heating air to the crops in the plastic house or the glass greenhouse, the diesel fuel inlet 19 and the inlet side of the gear pump 18 which is a device for supplying fuel. The bunker oil inlet 20 is provided in parallel, and the bunker oil supply valve 24 and the bunker oil supply pipe 25 for supplying light oil to the nozzle 21 are provided on the discharge side of the gear pump 18.

Here, the diesel oil supply pipe 23 and the bunker oil supply pipe 25 are joined at the nozzle 21 for burning fuel, so that the diesel fuel or bunker oil is jointly burned using one nozzle 21.

In addition, a diesel injection hose 26 and a diesel injection valve 27 are connected to the diesel injection port 19 on the injection side of the gear pump 18 and a bunker oil injection for bunker oil injection to the bunker oil injection port 20. Hose 28 and bunker oil injection valve 29 is connected.

In addition, since all the above valves should be automatically controlled by an electronic control system of a controller which is a known technique, it is of course preferable that the valve is composed of a solenoid valve operated by an electronic response.

Reference numeral 8 in the drawings denoted in the drawings is an air-class heat circulation tube for facilitating the purifying of the heated air of the air chamber 2, 9 is a rear gas return chamber in which combustion gas is returned, and 10 is a combustion gas is returned. Forward gas return chamber, 11 is the combustion gas collecting chamber, 12 is the communication chamber, 13 is the burner chamber where the oil burner is installed, 14 is the burner chamber cover door, 15 is the control box to control the operation 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 for hinge fastening the oil burner to the combustion port, 34 is a hinge fastener to be.

The operation 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 periphery of the cylindrical combustion chamber 5 of the agricultural air-heater. The oil burner (4) can selectively carry out gas oil burning or bunker oil combustion in an agricultural hot air heater, which supplies hot air 16 at a temperature suitable for growth to a crop in a greenhouse or a glass greenhouse. .

First, when diesel is used as fuel, the bunker oil injection valve 29 and the bunker oil supply valve 24 are locked to the valve opening / closing control means of a separate controller known in the art. When the valve 22 is opened to operate the gear pump 18, only the light oil is pumped by the gear pump 18 and supplied to the nozzle 21 via the light oil supply valve 22 and the light oil supply pipe 23. When the diesel oil is ignited by spark generation of the electrode rod 35, the diesel oil is burned by the blowing of the blowing fan built in the blowing fan driving motor 36.

On the other hand, when the heater is operated using bunker oil, when the controller is operated, all the valves flowing into the gear pump 18 are locked by the pre-input program and the gear pump 18 is operated.

Therefore, bunker oil or diesel oil self-sustaining in the gear pump 18 is discharged to the bunker oil storage tank (not shown) through the fuel recovery hose 30 in a state where all the valves are locked. The diesel fuel is supplied to the nozzle 21 while the valve 27 and the diesel fuel supply valve 22 are opened. At this time, the nozzle 21 is sufficiently preheated by a heater (not shown), and light oil is ignited and burned.

In this way, when diesel oil is ignited and 3 to 5 minutes have elapsed after the start of combustion, the surroundings of the nozzle 21 become high enough to ignite the bunker oil, and at this time, the diesel oil injection valve is controlled by a valve opening and closing control means of a separate controller. (27) and the light oil supply valve 22 is locked, and at the same time the bunker oil injection valve 29 and the bunker oil supply valve 24 is opened, only the bunker oil is pumped by the gear pump 18 and the bunker oil supply pipe When the bunker oil is supplied to the nozzle 21 via the (23), the bunker oil is combusted by the blowing of the blower fan installed in the blower fan driving motor 36, since the bunker oil is easily ignited by the high heat caused by conventional diesel combustion. One hot air heater can conveniently use light oil or bunker oil according to fuel procurement conditions or heating conditions, and the convenience of preheating bunker oil by light combustion Even if the bunker oil burner is not equipped with an expensive preheating device, the bunker oil can be effectively ignited.Because the use of bunker oil, which is cheaper than diesel, can be increased, the fuel cost can be reduced. Oil burner of agricultural hot air 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 diesel oil inlet 19 and a bunker oil inlet 20 are provided on the injection side of the gear pump 18 and the gear A light oil supply valve 22 for supplying light oil to the nozzle 21 and a bunker oil supply valve 24 for supplying bunker oil to the light oil supply pipe 23 and the nozzle 21 on the discharge side of the pump 18; An oil burner of a hot air heater for agriculture, characterized by a configuration in which a bunker oil supply pipe (25) is provided.